diff options
Diffstat (limited to 'web')
123 files changed, 13785 insertions, 0 deletions
diff --git a/web/atom-feed/default.nix b/web/atom-feed/default.nix new file mode 100644 index 000000000000..27c90a7b919c --- /dev/null +++ b/web/atom-feed/default.nix @@ -0,0 +1,153 @@ +# This file defines functions for generating an Atom feed. + +{ depot, lib, pkgs, ... }: + +with depot.nix.yants; + +let + inherit (builtins) foldl' map readFile replaceStrings sort; + inherit (lib) concatStrings concatStringsSep max removeSuffix; + inherit (pkgs) runCommand; + + # 'link' describes a related link to a feed, or feed element. + # + # https://validator.w3.org/feed/docs/atom.html#link + link = struct "link" { + rel = string; + href = string; + }; + + # 'entry' describes a feed entry, for example a single post on a + # blog. Some optional fields have been omitted. + # + # https://validator.w3.org/feed/docs/atom.html#requiredEntryElements + entry = struct "entry" { + # Identifies the entry using a universally unique and permanent URI. + id = string; + + # Contains a human readable title for the entry. This value should + # not be blank. + title = string; + + # Content of the entry. + content = option string; + + # Indicates the last time the entry was modified in a significant + # way (in seconds since epoch). + updated = int; + + # Names authors of the entry. Recommended element. + authors = option (list string); + + # Related web pages, such as the web location of a blog post. + links = option (list link); + + # Conveys a short summary, abstract, or excerpt of the entry. + summary = option string; + + # Contains the time of the initial creation or first availability + # of the entry. + published = option int; + + # Conveys information about rights, e.g. copyrights, held in and + # over the entry. + rights = option string; + }; + + # 'feed' describes the metadata of the Atom feed itself. + # + # Some optional fields have been omitted. + # + # https://validator.w3.org/feed/docs/atom.html#requiredFeedElements + feed = struct "feed" { + # Identifies the feed using a universally unique and permanent URI. + id = string; + + # Contains a human readable title for the feed. + title = string; + + # Indicates the last time the feed was modified in a significant + # way (in seconds since epoch). Will be calculated based on most + # recently updated entry if unset. + updated = option int; + + # Entries contained within the feed. + entries = list entry; + + # Names authors of the feed. Recommended element. + authors = option (list string); + + # Related web locations. Recommended element. + links = option (list link); + + # Conveys information about rights, e.g. copyrights, held in and + # over the feed. + rights = option string; + + # Contains a human-readable description or subtitle for the feed. + subtitle = option string; + }; + + # Feed generation functions: + + renderEpoch = epoch: removeSuffix "\n" (readFile (runCommand "date-${toString epoch}" { } '' + date --date='@${toString epoch}' --utc --iso-8601='seconds' > $out + '')); + + escape = replaceStrings [ "<" ">" "&" "'" ] [ "<" ">" "&" "'" ]; + + elem = name: content: ''<${name}>${escape content}</${name}>''; + + renderLink = defun [ link string ] (l: '' + <link href="${escape l.href}" rel="${escape l.rel}" /> + ''); + + # Technically the author element can also contain 'uri' and 'email' + # fields, but they are not used for the purpose of this feed and are + # omitted. + renderAuthor = author: ''<author><name>${escape author}</name></author>''; + + renderEntry = defun [ entry string ] (e: '' + <entry> + ${elem "title" e.title} + ${elem "id" e.id} + ${elem "updated" (renderEpoch e.updated)} + ${if e ? published + then elem "published" (renderEpoch e.published) + else "" + } + ${if e ? content + then ''<content type="html">${escape e.content}</content>'' + else "" + } + ${if e ? summary then elem "summary" e.summary else ""} + ${concatStrings (map renderAuthor (e.authors or []))} + ${if e ? subtitle then elem "subtitle" e.subtitle else ""} + ${if e ? rights then elem "rights" e.rights else ""} + ${concatStrings (map renderLink (e.links or []))} + </entry> + ''); + + mostRecentlyUpdated = defun [ (list entry) int ] (entries: + foldl' max 0 (map (e: e.updated) entries) + ); + + sortEntries = sort (a: b: a.published > b.published); + + renderFeed = defun [ feed string ] (f: '' + <?xml version="1.0" encoding="utf-8"?> + <feed xmlns="http://www.w3.org/2005/Atom"> + ${elem "id" f.id} + ${elem "title" f.title} + ${elem "updated" (renderEpoch (f.updated or (mostRecentlyUpdated f.entries)))} + ${concatStringsSep "\n" (map renderAuthor (f.authors or []))} + ${if f ? subtitle then elem "subtitle" f.subtitle else ""} + ${if f ? rights then elem "rights" f.rights else ""} + ${concatStrings (map renderLink (f.links or []))} + ${concatStrings (map renderEntry (sortEntries f.entries))} + </feed> + ''); +in +{ + inherit entry feed renderFeed renderEpoch; +} diff --git a/web/atward/.gitignore b/web/atward/.gitignore new file mode 100644 index 000000000000..29e65519ba35 --- /dev/null +++ b/web/atward/.gitignore @@ -0,0 +1,3 @@ +result +/target +**/*.rs.bk diff --git a/web/atward/Cargo.lock b/web/atward/Cargo.lock new file mode 100644 index 000000000000..8b0ef04f5e81 --- /dev/null +++ b/web/atward/Cargo.lock @@ -0,0 +1,881 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + +[[package]] +name = "adler32" +version = "1.2.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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Build script that can be used outside of Nix builds to inject the +//! ATWARD_INDEX_HTML variable when building in development mode. +//! +//! Note that this script assumes that atward is in a checkout of the +//! TVL depot. + +use std::process::Command; + +static ATWARD_INDEX_HTML: &str = "ATWARD_INDEX_HTML"; +static ERROR_MESSAGE: &str = r#"Failed to build index page. + +When building during development, atward expects to be in a checkout +of the TVL depot. This is required to automatically build the index +page that is needed at compile time. + +As atward can not automatically detect the location of the page, +you must set the `ATWARD_INDEX_HTML` environment variable to the +right path. + +The expected page is build using the files in //web/atward/indexHtml +in the depot."#; + +fn main() { + // Do nothing if the variable is already set (e.g. via Nix) + if let Ok(_) = std::env::var(ATWARD_INDEX_HTML) { + return; + } + + // Otherwise ask Nix to build it and inject the result. + let output = Command::new("nix-build") + .arg("-A") + .arg("web.atward.indexHtml") + // ... assuming atward is at //web/atward ... + .arg("../..") + .output() + .expect(ERROR_MESSAGE); + + if !output.status.success() { + eprintln!( + "{}\nNix output: {}", + ERROR_MESSAGE, + String::from_utf8_lossy(&output.stderr) + ); + return; + } + + let out_path = String::from_utf8(output.stdout) + .expect("Nix returned invalid output after building index page"); + + // Return an instruction to Cargo that will set the environment + // variable during rustc calls. + // + // https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-envvarvalue + println!("cargo:rustc-env={}={}", ATWARD_INDEX_HTML, out_path.trim()); +} diff --git a/web/atward/default.nix b/web/atward/default.nix new file mode 100644 index 000000000000..f3ed04345c32 --- /dev/null +++ b/web/atward/default.nix @@ -0,0 +1,8 @@ +{ depot, ... }: + +depot.third_party.naersk.buildPackage { + src = ./.; + override = x: { + ATWARD_INDEX_HTML = depot.web.atward.indexHtml; + }; +} diff --git a/web/atward/indexHtml/default.nix b/web/atward/indexHtml/default.nix new file mode 100644 index 000000000000..3af808b89831 --- /dev/null +++ b/web/atward/indexHtml/default.nix @@ -0,0 +1,99 @@ +{ depot, ... }: + +depot.web.tvl.template { + title = "atward"; + content = '' + atward + ====== + + ---------- + + **atward** is [TVL's](https://tvl.fyi/) search + service. It can be configured as a browser search engine for easy + access to TVL bugs, code reviews, code paths and more. + + ### Setting up atward + + To configure atward, add a search engine to your browser with the + following search string: `https://at.tvl.fyi/?q=%s` + Consider setting a shortcut, for example **t** or **tvl**. + You can now quickly access TVL resources by typing something + like <kbd>t b/42</kbd> in your URL bar to get to the bug with ID + 42. + + + ### Supported queries + + The following query types are supported in atward: + + * <kbd>b/42</kbd> - access bugs with ID 42 + * <kbd>cl/3087</kbd> - access changelist with ID 3087 + * <kbd>//web/atward</kbd> - open the **//web/atward** path in TVLs monorepo + * <kbd>r/3002</kbd> - access revision 3002 in cgit + + When given a short host name (e.g. <kbd>todo</kbd> or + <kbd>cl</kbd>), atward will redirect to the appropriate `tvl.fyi` + domain. + + ### Configuration + + Some behaviour of atward can be configured by adding query + parameters to the search string: + + * <kbd>cs=true</kbd> - use Sourcegraph instead of cgit to view code + + + In some browsers (like Firefox) users can not edit query + parameters for search engines. As an alternative configuration can + be supplied via cookies with the same names as the configuration + parameters. + + The form below can set this configuration: + <form class="cheddar-callout cheddar-todo"> + <input type="checkbox" + id="cs-setting" + name="cs-setting" + onchange="saveSetting(this, 'cs');"> + <label for="cs-setting">Use Sourcegraph instead of cgit</label> + </form> + + <noscript> + <p class="cheddar-callout cheddar-warning"> + The form above only works with Javascript enabled. Only a few + lines of Javascript are used, and they are licensed under a + free-software license (MIT). + </p> + </noscript> + + ### Source code + + atward's source code lives at + [//web/atward](https://at.tvl.fyi/?q=%2F%2Fweb%2Fatward). + ''; + extraHead = '' + <script> + /* Initialise the state of all settings. */ + function loadSettings() { + loadSetting(document.getElementById('cs-setting'), 'cs'); + } + + /* Initialise the state of a setting from a cookie. */ + function loadSetting(checkbox, name) { + if (document.cookie.split(';').some(function(cookie) { + return cookie.indexOf(`''${name}=true`) >= 0; + })) { + checkbox.checked = true; + } + } + + /* Persist the state of a checkbox in a cookie */ + function saveSetting(checkbox, name) { + console.log(`setting atward parameter '''''${name}' to ''${checkbox.checked.toString()}`); + document.cookie = `''${name}=''${checkbox.checked.toString()};`; + } + + document.addEventListener('DOMContentLoaded', loadSettings); + </script> + <link rel="search" type="application/opensearchdescription+xml" title="TVL Search" href="https://at.tvl.fyi/opensearch.xml"> + ''; +} diff --git a/web/atward/src/main.rs b/web/atward/src/main.rs new file mode 100644 index 000000000000..eb2603a226c6 --- /dev/null +++ b/web/atward/src/main.rs @@ -0,0 +1,200 @@ +//! Atward implements TVL's redirection service, living at +//! atward.tvl.fyi +//! +//! This service is designed to be added as a search engine to web +//! browsers and attempts to send users to useful locations based on +//! their search query (falling back to another search engine). +use regex::Regex; +use rouille::input::cookies; +use rouille::{Request, Response}; + +#[cfg(test)] +mod tests; + +/// A query handler supported by atward. It consists of a pattern on +/// which to match and trigger the query, and a function to execute +/// that returns the target URL. +struct Handler { + /// Regular expression on which to match the query string. + pattern: Regex, + + /// Function to construct the target URL. If the pattern matches, + /// this is invoked with the captured matches and the entire URI. + /// + /// Returning `None` causes atward to fall through to the next + /// query (and eventually to the default search engine). + target: for<'s> fn(&Query, regex::Captures<'s>) -> Option<String>, +} + +/// An Atward query supplied by a user. +#[derive(Debug, PartialEq)] +struct Query { + /// Query string itself. + query: String, + + /// Should Sourcegraph be used instead of cgit? + cs: bool, +} + +/// Helper function for setting a parameter based on a query +/// parameter. +fn query_setting(req: &Request, config: &mut bool, param: &str) { + match req.get_param(param) { + Some(s) if s == "true" => *config = true, + Some(s) if s == "false" => *config = false, + _ => {} + } +} + +impl Query { + fn from_request(req: &Request) -> Option<Query> { + // First extract the actual search query ... + let mut query = match req.get_param("q") { + Some(query) => Query { query, cs: false }, + None => return None, + }; + + // ... then apply settings to it. Settings in query parameters + // take precedence over cookies. + for cookie in cookies(req) { + match cookie { + ("cs", "true") => { + query.cs = true; + } + _ => {} + } + } + + query_setting(req, &mut query.cs, "cs"); + + Some(query) + } +} + +#[cfg(test)] +impl From<&str> for Query { + fn from(query: &str) -> Query { + Query { + query: query.to_string(), + cs: false, + } + } +} + +/// Create a URL to a file (and, optionally, specific line) in cgit. +fn cgit_url(path: &str) -> String { + if path.ends_with(".md") { + format!("https://code.tvl.fyi/about/{}", path) + } else { + format!("https://code.tvl.fyi/tree/{}", path) + } +} + +/// Create a URL to a path in Sourcegraph. +fn sourcegraph_path_url(path: &str) -> String { + format!("https://cs.tvl.fyi/depot/-/tree/{}", path) +} +/// Definition of all supported query handlers in atward. +fn handlers() -> Vec<Handler> { + vec![ + // Bug IDs (e.g. b/123) + Handler { + pattern: Regex::new("^b/(?P<bug>\\d+)$").unwrap(), + target: |_, captures| Some(format!("https://b.tvl.fyi/{}", &captures["bug"])), + }, + // Changelists (e.g. cl/42) + Handler { + pattern: Regex::new("^cl/(?P<cl>\\d+)$").unwrap(), + target: |_, captures| Some(format!("https://cl.tvl.fyi/{}", &captures["cl"])), + }, + // Non-parameterised short hostnames should redirect to $host.tvl.fyi + Handler { + pattern: Regex::new("^(?P<host>b|cl|cs|code|at|todo)$").unwrap(), + target: |_, captures| Some(format!("https://{}.tvl.fyi/", &captures["host"])), + }, + // Depot revisions (e.g. r/3002) + Handler { + pattern: Regex::new("^r/(?P<rev>\\d+)$").unwrap(), + target: |_, captures| { + Some(format!( + "https://code.tvl.fyi/commit/?id=refs/r/{}", + &captures["rev"] + )) + }, + }, + // Depot paths (e.g. //web/atward or //ops/nixos/whitby/default.nix) + // TODO(tazjin): Add support for specifying lines in a query parameter + Handler { + pattern: Regex::new("^//(?P<path>[a-zA-Z].*)?$").unwrap(), + target: |query, captures| { + // Pass an empty string if the path is missing, to + // redirect to the depot root. + let path = captures.name("path").map(|m| m.as_str()).unwrap_or(""); + + if query.cs { + Some(sourcegraph_path_url(path)) + } else { + Some(cgit_url(path)) + } + }, + }, + ] +} + +/// Attempt to match against all known query types, and return the +/// destination URL if one is found. +fn dispatch(handlers: &[Handler], query: &Query) -> Option<String> { + for handler in handlers { + if let Some(captures) = handler.pattern.captures(&query.query) { + if let Some(destination) = (handler.target)(query, captures) { + return Some(destination); + } + } + } + + None +} + +/// Return the opensearch.xml file which is required for adding atward +/// as a search engine in Firefox. +fn opensearch() -> Response { + Response::text(include_str!("opensearch.xml")) + .with_unique_header("Content-Type", "application/opensearchdescription+xml") +} + +/// Render the atward index page which gives users some information +/// about how to use the service. +fn index() -> Response { + Response::html(include_str!(env!("ATWARD_INDEX_HTML"))) +} + +/// Render the fallback page which informs users that their query is +/// unsupported. +fn fallback() -> Response { + Response::text("error for emphasis that i am angery and the query whimchst i angery atward") + .with_status_code(404) +} + +fn main() { + let queries = handlers(); + let address = std::env::var("ATWARD_LISTEN_ADDRESS") + .expect("ATWARD_LISTEN_ADDRESS environment variable must be set"); + + rouille::start_server(&address, move |request| { + rouille::log(&request, std::io::stderr(), || { + if request.url() == "/opensearch.xml" { + return opensearch(); + } + + let query = match Query::from_request(&request) { + Some(q) => q, + None => return index(), + }; + + match dispatch(&queries, &query) { + None => fallback(), + Some(destination) => Response::redirect_303(destination), + } + }) + }); +} diff --git a/web/atward/src/opensearch.xml b/web/atward/src/opensearch.xml new file mode 100644 index 000000000000..6033987f5b4b --- /dev/null +++ b/web/atward/src/opensearch.xml @@ -0,0 +1,8 @@ +<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/"> + <ShortName>TVL</ShortName> + <Description>The Virus Lounge Search</Description> + <InputEncoding>UTF-8</InputEncoding> + <Url type="text/html" template="https://at.tvl.fyi/"> + <Param name="q" value="{searchTerms}"/> + </Url> +</OpenSearchDescription> diff --git a/web/atward/src/tests.rs b/web/atward/src/tests.rs new file mode 100644 index 000000000000..a23f96ee9a74 --- /dev/null +++ b/web/atward/src/tests.rs @@ -0,0 +1,187 @@ +use super::*; + +#[test] +fn bug_query() { + assert_eq!( + dispatch(&handlers(), &"b/42".into()), + Some("https://b.tvl.fyi/42".to_string()) + ); + + assert_eq!( + dispatch(&handlers(), &"something only mentioning b/42".into()), + None, + ); + assert_eq!(dispatch(&handlers(), &"b/invalid".into()), None,); +} + +#[test] +fn cl_query() { + assert_eq!( + dispatch(&handlers(), &"cl/42".into()), + Some("https://cl.tvl.fyi/42".to_string()) + ); + + assert_eq!( + dispatch(&handlers(), &"something only mentioning cl/42".into()), + None, + ); + assert_eq!(dispatch(&handlers(), &"cl/invalid".into()), None,); +} + +#[test] +fn depot_path_cgit_query() { + assert_eq!( + dispatch(&handlers(), &"//web/atward/default.nix".into()), + Some("https://code.tvl.fyi/tree/web/atward/default.nix".to_string()), + ); + + assert_eq!( + dispatch(&handlers(), &"//nix/readTree/README.md".into()), + Some("https://code.tvl.fyi/about/nix/readTree/README.md".to_string()), + ); + + assert_eq!(dispatch(&handlers(), &"/not/a/depot/path".into()), None); +} + +#[test] +fn depot_path_sourcegraph_query() { + assert_eq!( + dispatch( + &handlers(), + &Query { + query: "//web/atward/default.nix".to_string(), + cs: true, + } + ), + Some("https://cs.tvl.fyi/depot/-/tree/web/atward/default.nix".to_string()), + ); + + assert_eq!( + dispatch( + &handlers(), + &Query { + query: "/not/a/depot/path".to_string(), + cs: true, + } + ), + None + ); +} + +#[test] +fn depot_root_cgit_query() { + assert_eq!( + dispatch( + &handlers(), + &Query { + query: "//".to_string(), + cs: false, + } + ), + Some("https://code.tvl.fyi/tree/".to_string()), + ); +} + +#[test] +fn plain_host_queries() { + assert_eq!( + dispatch(&handlers(), &"cs".into()), + Some("https://cs.tvl.fyi/".to_string()), + ); + + assert_eq!( + dispatch(&handlers(), &"cl".into()), + Some("https://cl.tvl.fyi/".to_string()), + ); + + assert_eq!( + dispatch(&handlers(), &"b".into()), + Some("https://b.tvl.fyi/".to_string()), + ); + + assert_eq!( + dispatch(&handlers(), &"todo".into()), + Some("https://todo.tvl.fyi/".to_string()), + ); +} + +#[test] +fn request_to_query() { + assert_eq!( + Query::from_request(&Request::fake_http("GET", "/?q=b%2F42", vec![], vec![])) + .expect("request should parse to a query"), + Query { + query: "b/42".to_string(), + cs: false, + }, + ); + + assert_eq!( + Query::from_request(&Request::fake_http("GET", "/", vec![], vec![])), + None + ); +} + +#[test] +fn settings_from_cookie() { + assert_eq!( + Query::from_request(&Request::fake_http( + "GET", + "/?q=b%2F42", + vec![("Cookie".to_string(), "cs=true;".to_string())], + vec![] + )) + .expect("request should parse to a query"), + Query { + query: "b/42".to_string(), + cs: true, + }, + ); +} + +#[test] +fn settings_from_query_parameter() { + assert_eq!( + Query::from_request(&Request::fake_http( + "GET", + "/?q=b%2F42&cs=true", + vec![], + vec![] + )) + .expect("request should parse to a query"), + Query { + query: "b/42".to_string(), + cs: true, + }, + ); + + // Query parameter should override cookie + assert_eq!( + Query::from_request(&Request::fake_http( + "GET", + "/?q=b%2F42&cs=false", + vec![("Cookie".to_string(), "cs=true;".to_string())], + vec![] + )) + .expect("request should parse to a query"), + Query { + query: "b/42".to_string(), + cs: false, + }, + ); +} + +#[test] +fn depot_revision_query() { + assert_eq!( + dispatch(&handlers(), &"r/3002".into()), + Some("https://code.tvl.fyi/commit/?id=refs/r/3002".to_string()) + ); + + assert_eq!( + dispatch(&handlers(), &"something only mentioning r/3002".into()), + None, + ); + + assert_eq!(dispatch(&handlers(), &"r/invalid".into()), None,); +} diff --git a/web/blog/default.nix b/web/blog/default.nix new file mode 100644 index 000000000000..696a9529c3b4 --- /dev/null +++ b/web/blog/default.nix @@ -0,0 +1,70 @@ +# This creates the static files that make up my blog from the Markdown +# files in this repository. +# +# All blog posts are rendered from Markdown by cheddar. +{ depot, lib, pkgs, ... }@args: + +with depot.nix.yants; + +let + inherit (builtins) readFile; + inherit (depot.nix) renderMarkdown; + inherit (depot.web) atom-feed; + inherit (lib) singleton; + + # Type definition for a single blog post. + post = struct "blog-post" { + key = string; + title = string; + date = int; + + # Optional time at which this post was last updated. + updated = option int; + + # Path to the Markdown file containing the post content. + content = path; + + # Whether dangerous HTML tags should be filtered in this post. Can + # be disabled to, for example, embed videos in a post. + tagfilter = option bool; + + # Optional name of the author to display. + author = option string; + + # Should this post be included in the index? (defaults to true) + listed = option bool; + + # Is this a draft? (adds a banner indicating that the link should + # not be shared) + draft = option bool; + + # Previously each post title had a numeric ID. For these numeric + # IDs, redirects are generated so that old URLs stay compatible. + oldKey = option string; + }; + + # Rendering fragments for the HTML version of the blog. + fragments = import ./fragments.nix args; + + # Functions for generating feeds for these blogs using //web/atom-feed. + toFeedEntry = { baseUrl, ... }: defun [ post atom-feed.entry ] (post: rec { + id = "${baseUrl}/${post.key}"; + title = post.title; + content = readFile (renderMarkdown post.content); + published = post.date; + updated = post.updated or post.date; + + links = singleton { + rel = "alternate"; + href = id; + }; + }); +in +{ + inherit post toFeedEntry; + inherit (fragments) renderPost; + + # Helper function to determine whether a post should be included in + # listings (on homepages, feeds, ...) + includePost = post: !(fragments.isDraft post) && !(fragments.isUnlisted post); +} diff --git a/web/blog/fragments.nix b/web/blog/fragments.nix new file mode 100644 index 000000000000..20fb879d9e83 --- /dev/null +++ b/web/blog/fragments.nix @@ -0,0 +1,95 @@ +# This file defines various fragments of the blog, such as the header +# and footer, as functions that receive arguments to be templated into +# them. +# +# An entire post is rendered by `renderPost`, which assembles the +# fragments together in a runCommand execution. +{ depot, lib, pkgs, ... }: + +let + inherit (builtins) filter map hasAttr replaceStrings; + inherit (pkgs) runCommand writeText; + inherit (depot.nix) renderMarkdown; + + # Generate a post list for all listed, non-draft posts. + isDraft = post: (hasAttr "draft" post) && post.draft; + isUnlisted = post: (hasAttr "listed" post) && !post.listed; + + escape = replaceStrings [ "<" ">" "&" "'" ] [ "<" ">" "&" "'" ]; + + header = name: title: staticUrl: '' + <!DOCTYPE html> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="description" content="${escape name}"> + <link rel="stylesheet" type="text/css" href="${staticUrl}/tvl.css" media="all"> + <link rel="icon" type="image/webp" href="/static/favicon.webp"> + <link rel="alternate" type="application/atom+xml" title="Atom Feed" href="https://tvl.fyi/feed.atom"> + <title>${escape name}: ${escape title}</title> + </head> + <body class="light"> + <header> + <h1><a class="blog-title" href="/">${escape name}</a> </h1> + <hr> + </header> + ''; + + fullFooter = content: '' + <hr> + <footer> + ${content} + </footer> + </body> + ''; + + draftWarning = writeText "draft.html" '' + <p class="cheddar-callout cheddar-warning"> + <b>Note:</b> This post is a <b>draft</b>! Please do not share + the link to it without asking first. + </p> + <hr> + ''; + + unlistedWarning = writeText "unlisted.html" '' + <p class="cheddar-callout cheddar-warning"> + <b>Note:</b> This post is <b>unlisted</b>! Please do not share + the link to it without asking first. + </p> + <hr> + ''; + + renderPost = { name, footer, staticUrl ? "https://static.tvl.fyi/${depot.web.static.drvHash}", ... }: post: runCommand "${post.key}.html" { } '' + cat ${writeText "header.html" (header name post.title staticUrl)} > $out + + # Write the post title & date + echo '<article><h2 class="inline">${escape post.title}</h2>' >> $out + echo '<aside class="date">' >> $out + date --date="@${toString post.date}" '+%Y-%m-%d' >> $out + ${ + if post ? updated + then ''date --date="@${toString post.updated}" '+ (updated %Y-%m-%d)' >> $out'' + else "" + } + ${if post ? author then "echo ' by ${post.author}' >> $out" else ""} + echo '</aside>' >> $out + + ${ + # Add a warning to draft/unlisted posts to make it clear that + # people should not share the post. + + if (isDraft post) then "cat ${draftWarning} >> $out" + else if (isUnlisted post) then "cat ${unlistedWarning} >> $out" + else "# Your ads could be here?" + } + + # Write the actual post through cheddar's about-filter mechanism + cat ${renderMarkdown { path = post.content; tagfilter = post.tagfilter or true; }} >> $out + echo '</article>' >> $out + + cat ${writeText "footer.html" (fullFooter footer)} >> $out + ''; +in +{ + inherit isDraft isUnlisted renderPost; +} diff --git a/web/bubblegum/OWNERS b/web/bubblegum/OWNERS new file mode 100644 index 000000000000..2e9580706346 --- /dev/null +++ b/web/bubblegum/OWNERS @@ -0,0 +1 @@ +sterni diff --git a/web/bubblegum/README.md b/web/bubblegum/README.md new file mode 100644 index 000000000000..48c2ba6e0328 --- /dev/null +++ b/web/bubblegum/README.md @@ -0,0 +1,68 @@ +# //web/bubblegum + +`bubblegum` is a CGI programming library for the Nix expression language. +It provides a few helpers to make writing CGI scripts which are executable +using [//nix/nint](../../nix/nint/README.md) convenient. + +An example nix.cgi script looks like this (don't worry about the shebang +too much, you can use `web.bubblegum.writeCGI` to set this up without +thinking twice): + +```nix +#!/usr/bin/env nint --arg depot '(import /path/to/depot {})' +{ depot, ... }: + +let + inherit (depot.web.bubblegum) + respond + ; +in + +respond "OK" { + "Content-type" = "text/html"; + # further headers… +} '' + <!doctype html> + <html> + <head> + <meta charset="utf-8"> + <title>hello world</title> + </head> + <body> + hello world! + </body> + </html> +'' +``` + +As you can see, the core component of `bubblegum` is the `respond` +function which takes three arguments: + +* The response status as the textual representation which is also + returned to the client in the HTTP protocol, e. g. `"OK"`, + `"Not Found"`, `"Bad Request"`, … + +* An attribute set mapping header names to header values to be sent. + +* The response body as a string. + +Additionally it exposes a few helpers for working with the CGI +environment like `pathInfo` which is a wrapper around +`builtins.getEnv "PATH_INFO"`. The documentation for all exposed +helpers is inlined in [default.nix](./default.nix) (you should be +able to use `nixdoc` to render it). + +For deployment purposes it is recommended to use `writeCGI` which +takes a nix CGI script in the form of a derivation, path or string +and builds an executable nix CGI script which has the correct shebang +set and is automatically passed a version of depot from the nix store, +so the script has access to the `bubblegum` library. + +For example nix CGI scripts and a working deployment using `thttpd` +see the [examples directory](./examples). You can also start a local +server running the examples like this: + +``` +$ nix-build -A web.bubblegum.examples && ./result +# navigate to http://localhost:9000 +``` diff --git a/web/bubblegum/default.nix b/web/bubblegum/default.nix new file mode 100644 index 000000000000..ed9ab616804d --- /dev/null +++ b/web/bubblegum/default.nix @@ -0,0 +1,272 @@ +{ depot, lib, pkgs, ... }: + +let + + inherit (depot.nix) + runExecline + getBins + utils + sparseTree + nint + ; + + minimalDepot = sparseTree { + root = depot.path.origSrc; + name = "minimal-depot"; + + paths = [ + # general depot things + "default.nix" + "nix/readTree" + # nixpkgs for lib and packages + "third_party/nixpkgs" + "third_party/overlays" + # bubblegum and its dependencies + "web/bubblegum" + "nix/runExecline" + "nix/utils" + "nix/sparseTree" + # tvix docs for svg demo + "tvix/docs" + # for blog.nix + "users/sterni/nix" + ]; + }; + + statusCodes = { + # 1xx + "Continue" = 100; + "Switching Protocols" = 101; + "Processing" = 102; + "Early Hints" = 103; + # 2xx + "OK" = 200; + "Created" = 201; + "Accepted" = 202; + "Non-Authoritative Information" = 203; + "No Content" = 204; + "Reset Content" = 205; + "Partial Content" = 206; + "Multi Status" = 207; + "Already Reported" = 208; + "IM Used" = 226; + # 3xx + "Multiple Choices" = 300; + "Moved Permanently" = 301; + "Found" = 302; + "See Other" = 303; + "Not Modified" = 304; + "Use Proxy" = 305; + "Switch Proxy" = 306; + "Temporary Redirect" = 307; + "Permanent Redirect" = 308; + # 4xx + "Bad Request" = 400; + "Unauthorized" = 401; + "Payment Required" = 402; + "Forbidden" = 403; + "Not Found" = 404; + "Method Not Allowed" = 405; + "Not Acceptable" = 406; + "Proxy Authentication Required" = 407; + "Request Timeout" = 408; + "Conflict" = 409; + "Gone" = 410; + "Length Required" = 411; + "Precondition Failed" = 412; + "Payload Too Large" = 413; + "URI Too Long" = 414; + "Unsupported Media Type" = 415; + "Range Not Satisfiable" = 416; + "Expectation Failed" = 417; + "I'm a teapot" = 418; + "Misdirected Request" = 421; + "Unprocessable Entity" = 422; + "Locked" = 423; + "Failed Dependency" = 424; + "Too Early" = 425; + "Upgrade Required" = 426; + "Precondition Required" = 428; + "Too Many Requests" = 429; + "Request Header Fields Too Large" = 431; + "Unavailable For Legal Reasons" = 451; + # 5xx + "Internal Server Error" = 500; + "Not Implemented" = 501; + "Bad Gateway" = 502; + "Service Unavailable" = 503; + "Gateway Timeout" = 504; + "HTTP Version Not Supported" = 505; + "Variant Also Negotiates" = 506; + "Insufficient Storage" = 507; + "Loop Detected" = 508; + "Not Extended" = 510; + "Network Authentication Required" = 511; + }; + + /* Generate a CGI response. Takes three arguments: + + 1. Status of the response as a string which is + the descriptive name in the protocol, e. g. + `"OK"`, `"Not Found"` etc. + 2. Attribute set describing extra headers to + send, keys and values should both be strings. + 3. Response content as a string. + + See the [README](./README.md) for an example. + + Type: either int string -> attrs string -> string -> string + */ + respond = + # response status as an integer (status code) or its + # textual representation in the HTTP protocol. + # See `statusCodes` for a list of valid options. + statusArg: + # headers as an attribute set of strings + headers: + # response body as a string + bodyArg: + let + status = + if builtins.isInt statusArg + then { + code = statusArg; + line = lib.findFirst + (line: statusCodes."${line}" == statusArg) + null + (builtins.attrNames statusCodes); + } else if builtins.isString statusArg then { + code = statusCodes."${statusArg}" or null; + line = statusArg; + } else { + code = null; + line = null; + }; + renderedHeaders = lib.concatStrings + (lib.mapAttrsToList (n: v: "${n}: ${toString v}\r\n") headers); + internalError = msg: respond 500 + { + Content-type = "text/plain"; + } "bubblegum error: ${msg}"; + body = builtins.tryEval bodyArg; + in + if status.code == null || status.line == null + then internalError "Invalid status ${lib.generators.toPretty {} statusArg}." + else if !body.success + then internalError "Unknown evaluation error in user code" + else + lib.concatStrings [ + "Status: ${toString status.code} ${status.line}\r\n" + renderedHeaders + "\r\n" + body.value + ]; + + /* Returns the value of the `SCRIPT_NAME` environment + variable used by CGI. + */ + scriptName = builtins.getEnv "SCRIPT_NAME"; + + /* Returns the value of the `PATH_INFO` environment + variable used by CGI. All cases that could be + considered as the CGI script's root (i. e. + `PATH_INFO` is empty or `/`) is mapped to `"/"` + for convenience. + */ + pathInfo = + let + p = builtins.getEnv "PATH_INFO"; + in + if builtins.stringLength p == 0 + then "/" + else p; + + /* Helper function which converts a path from the + root of the CGI script (i. e. something which + could be the content of `PATH_INFO`) to an + absolute path from the web root by also + utilizing `scriptName`. + + Type: string -> string + */ + absolutePath = path: + if builtins.substring 0 1 path == "/" + then "${scriptName}${path}" + else "${scriptName}/${path}"; + + bins = getBins pkgs.coreutils [ "env" "tee" "cat" "printf" "chmod" ] + // getBins nint [ "nint" ]; + + /* Type: args -> either path derivation string -> derivation + */ + writeCGI = + { + # if given sets the `PATH` to search for `nix-instantiate` + # Useful when using for example thttpd which unsets `PATH` + # in the CGI environment. + binPath ? "" + # name of the resulting derivation. Defaults to `baseNameOf` + # the input path or name of the input derivation. + # Must be given if the input is a string. + , name ? null + , ... + }@args: + input: + let + drvName = + if builtins.isString input || args ? name + then args.name + else utils.storePathName input; + script = + if builtins.isPath input || lib.isDerivation input + then input + else if builtins.isString input + then pkgs.writeText "${drvName}-source" input + else builtins.throw "Unsupported input: ${lib.generators.toPretty {} input}"; + shebang = lib.concatStringsSep " " ([ + "#!${bins.env}" + # use the slightly cursed /usr/bin/env -S which allows us + # to pass any number of arguments to our interpreter + # instead of maximum one using plain shebang which considers + # everything after the first space as the second argument. + "-S" + ] ++ lib.optionals (builtins.stringLength binPath > 0) [ + "PATH=${binPath}" + ] ++ [ + "${bins.nint}" + # always pass depot so scripts can use this library + "--arg depot '(import ${minimalDepot} {})'" + ]); + in + runExecline.local drvName { } [ + "importas" + "out" + "out" + "pipeline" + [ + "foreground" + [ + "if" + [ bins.printf "%s\n" shebang ] + ] + "if" + [ bins.cat script ] + ] + "if" + [ bins.tee "$out" ] + "if" + [ bins.chmod "+x" "$out" ] + "exit" + "0" + ]; + +in +{ + inherit + respond + pathInfo + scriptName + absolutePath + writeCGI + ; +} diff --git a/web/bubblegum/examples/blog.nix b/web/bubblegum/examples/blog.nix new file mode 100644 index 000000000000..76b91168b894 --- /dev/null +++ b/web/bubblegum/examples/blog.nix @@ -0,0 +1,143 @@ +{ depot, ... }: + +let + inherit (depot.third_party.nixpkgs) + lib + ; + + inherit (depot.users.sterni.nix) + url + fun + string + ; + + inherit (depot.web.bubblegum) + pathInfo + scriptName + respond + absolutePath + ; + + # substituted using substituteAll in default.nix + blogdir = "@blogdir@"; + # blogdir = toString ./posts; # for local testing + + parseDate = post: + let + matched = builtins.match "/?([0-9]+)-([0-9]+)-([0-9]+)-.+" post; + in + if matched == null + then [ 0 0 0 ] + else builtins.map builtins.fromJSON matched; + + parseTitle = post: + let + matched = builtins.match "/?[0-9]+-[0-9]+-[0-9]+-(.+).html" post; + in + if matched == null + then "no title" + else builtins.head matched; + + dateAtLeast = a: b: + builtins.all fun.id + (lib.zipListsWith (partA: partB: partA >= partB) a b); + + byPostDate = a: b: + dateAtLeast (parseDate a) (parseDate b); + + posts = builtins.sort byPostDate + (builtins.attrNames + (lib.filterAttrs (_: v: v == "regular") + (builtins.readDir blogdir))); + + generic = { title, inner, ... }: '' + <!doctype html> + <html> + <head> + <meta charset="utf-8"> + <title>${title}</title> + <style>a:link, a:visited { color: blue; }</style> + </head> + <body> + ${inner} + </body> + </html> + ''; + + index = posts: '' + <main> + <h1>blog posts</h1> + <ul> + '' + lib.concatMapStrings + (post: '' + <li> + <a href="${absolutePath (url.encode {} post)}">${parseTitle post}</a> + </li> + '') + posts + '' + </ul> + </main> + ''; + + formatDate = + let + # Assume we never deal with years < 1000 + formatDigit = d: string.fit + { + char = "0"; + width = 2; + } + (toString d); + in + lib.concatMapStringsSep "-" formatDigit; + + post = title: post: '' + <main> + <h1>${title}</h1> + <div id="content"> + ${builtins.readFile (blogdir + "/" + post)} + </div> + </main> + <footer> + <p>Posted on ${formatDate (parseDate post)}</p> + <nav><a href="${scriptName}">index</a></nav> + </footer> + ''; + + validatePathInfo = pathInfo: + let + chars = string.toChars pathInfo; + in + builtins.length chars > 1 + && !(builtins.elem "/" (builtins.tail chars)); + + response = + if pathInfo == "/" + then { + title = "blog"; + status = 200; + inner = index posts; + } + else if !(validatePathInfo pathInfo) + then { + title = "Bad Request"; + status = 400; + inner = "No slashes in post names 😡"; + } + # CGI should already url.decode for us + else if builtins.pathExists (blogdir + "/" + pathInfo) + then rec { + title = parseTitle pathInfo; + status = 200; + inner = post title pathInfo; + } else { + title = "Not Found"; + status = 404; + inner = "<h1>404 — not found</h1>"; + }; +in +respond response.status +{ + "Content-type" = "text/html"; +} + (generic response) diff --git a/web/bubblegum/examples/default.nix b/web/bubblegum/examples/default.nix new file mode 100644 index 000000000000..89482f93eacc --- /dev/null +++ b/web/bubblegum/examples/default.nix @@ -0,0 +1,82 @@ +{ depot, pkgs, lib, ... }: + +let + + scripts = [ + ./hello.nix + ./derivation-svg.nix + (substituteAll { + src = ./blog.nix; + # by making this a plain string this + # can be something outside the nix store! + blogdir = ./posts; + }) + ]; + + inherit (depot.nix) + writeExecline + runExecline + getBins + ; + + inherit (depot.web.bubblegum) + writeCGI + ; + + inherit (pkgs) + runCommandLocal + substituteAll + ; + + bins = (getBins pkgs.thttpd [ "thttpd" ]) + // (getBins pkgs.coreutils [ "printf" "cp" "mkdir" ]); + + webRoot = + let + copyScripts = lib.concatMap + (path: + let + cgi = writeCGI + { + # assume we are on NixOS since thttpd doesn't set PATH. + # using third_party.nix is tricky because not everyone + # has a tvix daemon running. + binPath = "/run/current-system/sw/bin"; + } + path; + in + [ + "if" + [ bins.cp cgi "\${out}/${cgi.name}" ] + ]) + scripts; + in + runExecline.local "webroot" { } ([ + "importas" + "out" + "out" + "if" + [ bins.mkdir "-p" "$out" ] + ] ++ copyScripts); + + port = 9000; + +in +writeExecline "serve-examples" { } [ + "foreground" + [ + bins.printf + "%s\n" + "Running on http://localhost:${toString port}" + ] + "${bins.thttpd}" + "-D" + "-p" + (toString port) + "-l" + "/dev/stderr" + "-c" + "*.nix" + "-d" + webRoot +] diff --git a/web/bubblegum/examples/derivation-svg.nix b/web/bubblegum/examples/derivation-svg.nix new file mode 100644 index 000000000000..9a625afb55d7 --- /dev/null +++ b/web/bubblegum/examples/derivation-svg.nix @@ -0,0 +1,13 @@ +# Warning: this is *very* slow on the first request +{ depot, ... }: + +let + inherit (depot.web.bubblegum) + respond + ; +in +respond "OK" +{ + Content-type = "image/svg+xml"; +} + (builtins.readFile "${depot.tvix.docs.svg}/component-flow.svg") diff --git a/web/bubblegum/examples/hello.nix b/web/bubblegum/examples/hello.nix new file mode 100644 index 000000000000..bd4891f7d66d --- /dev/null +++ b/web/bubblegum/examples/hello.nix @@ -0,0 +1,94 @@ +{ depot, ... }: + +let + inherit (depot.third_party.nixpkgs) + lib + ; + + inherit (depot.web.bubblegum) + pathInfo + respond + absolutePath + ; + + routes = { + "/" = { + status = "OK"; + title = "index"; + content = '' + Hello World! + ''; + }; + "/clock" = { + status = "OK"; + title = "clock"; + content = '' + It is ${toString builtins.currentTime}s since 1970-01-01 00:00 UTC. + ''; + }; + "/coffee" = { + status = "I'm a teapot"; + title = "coffee"; + content = '' + No coffee, I'm afraid + ''; + }; + "/type-error" = { + status = 666; + title = "bad usage"; + content = '' + Never gonna see this. + ''; + }; + "/eval-error" = { + status = "OK"; + title = "evaluation error"; + content = builtins.throw "lol"; + }; + }; + + notFound = { + status = "Not Found"; + title = "404"; + content = '' + This page doesn't exist. + ''; + }; + + navigation = + lib.concatStrings (lib.mapAttrsToList + (p: v: "<li><a href=\"${absolutePath p}\">${v.title}</a></li>") + routes); + + template = { title, content, ... }: '' + <!doctype html> + <html lang="en"> + <head> + <meta charset="utf-8"> + <title>${title}</title> + <style>a:link, a:visited { color: blue; }</style> + </head> + <body> + <hgroup> + <h1><code>//web/bubblegum</code></h1> + <h2>example app</h2> + </hgroup> + <header> + <nav> + <ul>${navigation}</ul> + </nav> + </header> + <main> + <p>${content}</p> + </main> + </body> + ''; + + response = routes."${pathInfo}" or notFound; + +in +respond response.status +{ + "Content-type" = "text/html"; +} + (template response) diff --git a/web/bubblegum/examples/posts/2021-04-01-hello.html b/web/bubblegum/examples/posts/2021-04-01-hello.html new file mode 100644 index 000000000000..3c58be7953f1 --- /dev/null +++ b/web/bubblegum/examples/posts/2021-04-01-hello.html @@ -0,0 +1,3 @@ +<p> + This is it, the peak of cursed. +</p> diff --git a/web/bubblegum/examples/posts/2021-04-02-a second post.html b/web/bubblegum/examples/posts/2021-04-02-a second post.html new file mode 100644 index 000000000000..050586c3029c --- /dev/null +++ b/web/bubblegum/examples/posts/2021-04-02-a second post.html @@ -0,0 +1,7 @@ +<p> + <ul> + <li>✅ sorting</li> + <li>✅ url encoding (admire the spaces!)</li> + <li>✅ classic Nix regex based parsing</li> + </ul> +</p> diff --git a/web/cgit-tvl/default.nix b/web/cgit-tvl/default.nix new file mode 100644 index 000000000000..d26de9a5ebe7 --- /dev/null +++ b/web/cgit-tvl/default.nix @@ -0,0 +1,73 @@ +# Wrapper for running cgit through thttpd with TVL-specific +# configuration. +# +# In practice this is only used for //ops/modules/cgit, but exposing +# it here makes it easy to experiment with cgit locally. +{ depot, lib, pkgs, ... }: + +let + cgitConfig = repo: pkgs.writeText "cgitrc" '' + # Global configuration + virtual-root=/ + enable-http-clone=0 + readme=:README.md + about-filter=${depot.tools.cheddar.about-filter}/bin/cheddar-about + source-filter=${depot.tools.cheddar}/bin/cheddar + enable-log-filecount=1 + enable-log-linecount=1 + enable-follow-links=1 + enable-blame=1 + mimetype-file=${pkgs.mime-types}/etc/mime.types + logo=https://static.tvl.fyi/${depot.web.static.drvHash}/logo-animated.svg + + # Repository configuration + repo.url=depot + repo.path=${repo} + repo.desc=monorepo for the virus lounge + repo.owner=The Virus Lounge + repo.clone-url=https://code.tvl.fyi/depot.git + ''; + + thttpdConfig = port: pkgs.writeText "thttpd.conf" '' + port=${toString port} + dir=${depot.third_party.cgit}/cgit + nochroot + novhost + cgipat=**.cgi + ''; + + # Patched version of thttpd that serves cgit.cgi as the index and + # sets the environment variable for pointing cgit at the correct + # configuration. + # + # Things are done this way because recompilation of thttpd is much + # faster than cgit. + thttpdConfigPatch = repo: pkgs.writeText "thttpd_cgit_conf.patch" '' + diff --git a/libhttpd.c b/libhttpd.c + index c6b1622..eef4b73 100644 + --- a/libhttpd.c + +++ b/libhttpd.c + @@ -3055,4 +3055,6 @@ make_envp( httpd_conn* hc ) + + envn = 0; + + // force cgit to load the correct configuration + + envp[envn++] = "CGIT_CONFIG=${cgitConfig repo}"; + envp[envn++] = build_env( "PATH=%s", CGI_PATH ); + #ifdef CGI_LD_LIBRARY_PATH + ''; + + thttpdCgit = repo: pkgs.thttpd.overrideAttrs (old: { + patches = [ + ./thttpd_cgi_idx.patch + (thttpdConfigPatch repo) + ]; + }); + +in +lib.makeOverridable + ({ port ? 2448 + , repo ? "/var/lib/gerrit/git/depot.git/" + }: pkgs.writeShellScript "cgit-launch" '' + exec ${thttpdCgit repo}/bin/thttpd -D -C ${thttpdConfig port} + '') +{ } diff --git a/web/cgit-tvl/thttpd_cgi_idx.patch b/web/cgit-tvl/thttpd_cgi_idx.patch new file mode 100644 index 000000000000..67dbc0c7ab80 --- /dev/null +++ b/web/cgit-tvl/thttpd_cgi_idx.patch @@ -0,0 +1,13 @@ +diff --git a/config.h b/config.h +index 65ab1e3..cde470f 100644 +--- a/config.h ++++ b/config.h +@@ -327,7 +327,7 @@ + /* CONFIGURE: A list of index filenames to check. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) <year> <name of author> + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<https://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<https://www.gnu.org/licenses/why-not-lgpl.html>. diff --git a/web/converse/README.md b/web/converse/README.md new file mode 100644 index 000000000000..e7a3f70aec07 --- /dev/null +++ b/web/converse/README.md @@ -0,0 +1,14 @@ +Converse +======== + +Welcome to Converse, a work-in-progress forum software written in +Rust. The intention behind Converse is to provide a simple forum-like +experience. + +There is not a lot of documentation about Converse yet and it has +several known issues. Also note that Converse is being developed for a +specific use-case and is not going to be a forum feature kitchen-sink +like most classical forum softwares. + +Better documentation is forthcoming once the remaining basics have +been taken care of. diff --git a/web/converse/build.rs b/web/converse/build.rs new file mode 100644 index 000000000000..89e3e6b1aba9 --- /dev/null +++ b/web/converse/build.rs @@ -0,0 +1,5 @@ +extern crate askama; + +fn main() { + askama::rerun_if_templates_changed(); +} diff --git a/web/converse/default.nix b/web/converse/default.nix new file mode 100644 index 000000000000..7a6583d31ea7 --- /dev/null +++ b/web/converse/default.nix @@ -0,0 +1,7 @@ +{ depot, pkgs, ... }: + +depot.third_party.naersk.buildPackage { + src = ./.; + buildInputs = with pkgs; [ openssl postgresql.lib ]; + nativeBuildInputs = [ pkgs.pkg-config ]; +} diff --git a/web/converse/envrc.example b/web/converse/envrc.example new file mode 100644 index 000000000000..f255d269fec7 --- /dev/null +++ b/web/converse/envrc.example @@ -0,0 +1,14 @@ +# This is an example configuration for running converse during +# development using direnv: +# https://github.com/direnv/direnv +# +# The OIDC actor is configured with bogus values as disabling logins +# never causes it to run anyways. + +export DATABASE_URL=postgres://converse:converse@localhost/converse +export RUST_LOG=info +export OIDC_DISCOVERY_URL=https://does.not.matter.com/ +export OIDC_CLIENT_ID=some-client-id +export OIDC_CLIENT_SECRET='some-client-secret' +export BASE_URL=http://localhost:4567 +export REQUIRE_LOGIN=false diff --git a/web/converse/migrations/.gitkeep b/web/converse/migrations/.gitkeep new file mode 100644 index 000000000000..e69de29bb2d1 --- /dev/null +++ b/web/converse/migrations/.gitkeep diff --git a/web/converse/migrations/00000000000000_diesel_initial_setup/down.sql b/web/converse/migrations/00000000000000_diesel_initial_setup/down.sql new file mode 100644 index 000000000000..a9f526091194 --- /dev/null +++ b/web/converse/migrations/00000000000000_diesel_initial_setup/down.sql @@ -0,0 +1,6 @@ +-- This file was automatically created by Diesel to setup helper functions +-- and other internal bookkeeping. This file is safe to edit, any future +-- changes will be added to existing projects as new migrations. + +DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass); +DROP FUNCTION IF EXISTS diesel_set_updated_at(); diff --git a/web/converse/migrations/00000000000000_diesel_initial_setup/up.sql b/web/converse/migrations/00000000000000_diesel_initial_setup/up.sql new file mode 100644 index 000000000000..d68895b1a7b7 --- /dev/null +++ b/web/converse/migrations/00000000000000_diesel_initial_setup/up.sql @@ -0,0 +1,36 @@ +-- This file was automatically created by Diesel to setup helper functions +-- and other internal bookkeeping. This file is safe to edit, any future +-- changes will be added to existing projects as new migrations. + + + + +-- Sets up a trigger for the given table to automatically set a column called +-- `updated_at` whenever the row is modified (unless `updated_at` was included +-- in the modified columns) +-- +-- # Example +-- +-- ```sql +-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW()); +-- +-- SELECT diesel_manage_updated_at('users'); +-- ``` +CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$ +BEGIN + EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s + FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl); +END; +$$ LANGUAGE plpgsql; + +CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$ +BEGIN + IF ( + NEW IS DISTINCT FROM OLD AND + NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at + ) THEN + NEW.updated_at := current_timestamp; + END IF; + RETURN NEW; +END; +$$ LANGUAGE plpgsql; diff --git a/web/converse/migrations/2018-04-08-133240_create_posts/down.sql b/web/converse/migrations/2018-04-08-133240_create_posts/down.sql new file mode 100644 index 000000000000..8ebcef8e131a --- /dev/null +++ b/web/converse/migrations/2018-04-08-133240_create_posts/down.sql @@ -0,0 +1,2 @@ +DROP TABLE posts; +DROP TABLE threads; diff --git a/web/converse/migrations/2018-04-08-133240_create_posts/up.sql b/web/converse/migrations/2018-04-08-133240_create_posts/up.sql new file mode 100644 index 000000000000..7cf601fa2c54 --- /dev/null +++ b/web/converse/migrations/2018-04-08-133240_create_posts/up.sql @@ -0,0 +1,13 @@ +CREATE TABLE threads ( + id SERIAL PRIMARY KEY, + title VARCHAR NOT NULL, + body TEXT NOT NULL, + posted TIMESTAMPTZ NOT NULL +); + +CREATE TABLE posts ( + id SERIAL PRIMARY KEY, + thread SERIAL REFERENCES threads (id), + body TEXT NOT NULL, + posted TIMESTAMPTZ NOT NULL +); diff --git a/web/converse/migrations/2018-04-08-161017_joinable_posts/down.sql b/web/converse/migrations/2018-04-08-161017_joinable_posts/down.sql new file mode 100644 index 000000000000..cc7874b410ee --- /dev/null +++ b/web/converse/migrations/2018-04-08-161017_joinable_posts/down.sql @@ -0,0 +1 @@ +ALTER TABLE posts RENAME COLUMN thread_id TO thread; diff --git a/web/converse/migrations/2018-04-08-161017_joinable_posts/up.sql b/web/converse/migrations/2018-04-08-161017_joinable_posts/up.sql new file mode 100644 index 000000000000..9713de6cfc4b --- /dev/null +++ b/web/converse/migrations/2018-04-08-161017_joinable_posts/up.sql @@ -0,0 +1 @@ +ALTER TABLE posts RENAME COLUMN thread TO thread_id; diff --git a/web/converse/migrations/2018-04-08-172739_default_posted/down.sql b/web/converse/migrations/2018-04-08-172739_default_posted/down.sql new file mode 100644 index 000000000000..64dc07e0666a --- /dev/null +++ b/web/converse/migrations/2018-04-08-172739_default_posted/down.sql @@ -0,0 +1,2 @@ +ALTER TABLE threads ALTER COLUMN posted DROP DEFAULT; +ALTER TABLE posts ALTER COLUMN posted DROP DEFAULT; diff --git a/web/converse/migrations/2018-04-08-172739_default_posted/up.sql b/web/converse/migrations/2018-04-08-172739_default_posted/up.sql new file mode 100644 index 000000000000..afca8181cc56 --- /dev/null +++ b/web/converse/migrations/2018-04-08-172739_default_posted/up.sql @@ -0,0 +1,2 @@ +ALTER TABLE threads ALTER COLUMN posted SET DEFAULT (NOW() AT TIME ZONE 'UTC'); +ALTER TABLE posts ALTER COLUMN posted SET DEFAULT (NOW() AT TIME ZONE 'UTC'); diff --git a/web/converse/migrations/2018-04-08-182319_add_authors/down.sql b/web/converse/migrations/2018-04-08-182319_add_authors/down.sql new file mode 100644 index 000000000000..8ad817908065 --- /dev/null +++ b/web/converse/migrations/2018-04-08-182319_add_authors/down.sql @@ -0,0 +1,5 @@ +ALTER TABLE threads DROP COLUMN author_name; +ALTER TABLE threads DROP COLUMN author_email; + +ALTER TABLE posts DROP COLUMN author_name; +ALTER TABLE posts DROP COLUMN author_email; diff --git a/web/converse/migrations/2018-04-08-182319_add_authors/up.sql b/web/converse/migrations/2018-04-08-182319_add_authors/up.sql new file mode 100644 index 000000000000..ad5beb9f6785 --- /dev/null +++ b/web/converse/migrations/2018-04-08-182319_add_authors/up.sql @@ -0,0 +1,10 @@ +-- This migration adds an 'author' column to the thread & post table. +-- Authors don't currently exist as independent objects in the +-- database as most user management is simply delegated to the OIDC +-- provider. + +ALTER TABLE threads ADD COLUMN author_name VARCHAR NOT NULL DEFAULT 'anonymous'; +ALTER TABLE threads ADD COLUMN author_email VARCHAR NOT NULL DEFAULT 'unknown@example.org'; + +ALTER TABLE posts ADD COLUMN author_name VARCHAR NOT NULL DEFAULT 'anonymous'; +ALTER TABLE posts ADD COLUMN author_email VARCHAR NOT NULL DEFAULT 'unknown@example.org'; diff --git a/web/converse/migrations/2018-04-14-140818_posts_only_in_posts/down.sql b/web/converse/migrations/2018-04-14-140818_posts_only_in_posts/down.sql new file mode 100644 index 000000000000..bb6528f33d78 --- /dev/null +++ b/web/converse/migrations/2018-04-14-140818_posts_only_in_posts/down.sql @@ -0,0 +1 @@ +ALTER TABLE threads ADD COLUMN body TEXT NOT NULL DEFAULT ''; diff --git a/web/converse/migrations/2018-04-14-140818_posts_only_in_posts/up.sql b/web/converse/migrations/2018-04-14-140818_posts_only_in_posts/up.sql new file mode 100644 index 000000000000..07ff9a1196f6 --- /dev/null +++ b/web/converse/migrations/2018-04-14-140818_posts_only_in_posts/up.sql @@ -0,0 +1,6 @@ +-- Instead of storing the thread OP in the thread table, this will +-- make it a post as well. +-- At the time at which this migration was created no important data +-- existed in any converse instances, so data is not moved. + +ALTER TABLE threads DROP COLUMN body; diff --git a/web/converse/migrations/2018-04-14-153202_add_stickies_improve_index/down.sql b/web/converse/migrations/2018-04-14-153202_add_stickies_improve_index/down.sql new file mode 100644 index 000000000000..a67ada3d4a57 --- /dev/null +++ b/web/converse/migrations/2018-04-14-153202_add_stickies_improve_index/down.sql @@ -0,0 +1,2 @@ +DROP VIEW thread_index; +ALTER TABLE threads DROP COLUMN sticky; diff --git a/web/converse/migrations/2018-04-14-153202_add_stickies_improve_index/up.sql b/web/converse/migrations/2018-04-14-153202_add_stickies_improve_index/up.sql new file mode 100644 index 000000000000..74a559e35d00 --- /dev/null +++ b/web/converse/migrations/2018-04-14-153202_add_stickies_improve_index/up.sql @@ -0,0 +1,21 @@ +-- Add support for stickies in threads +ALTER TABLE threads ADD COLUMN sticky BOOLEAN NOT NULL DEFAULT FALSE; + +-- CREATE a simple view that returns the list of threads ordered by +-- the last post that occured in the thread. +CREATE VIEW thread_index AS + SELECT t.id AS thread_id, + t.title AS title, + t.author_name AS thread_author, + t.posted AS created, + t.sticky AS sticky, + p.id AS post_id, + p.author_name AS post_author, + p.posted AS posted + FROM threads t + JOIN (SELECT DISTINCT ON (thread_id) + id, thread_id, author_name, posted + FROM posts + ORDER BY thread_id, id DESC) AS p + ON t.id = p.thread_id + ORDER BY t.sticky DESC, p.id DESC; diff --git a/web/converse/migrations/2018-04-14-170750_search-index/down.sql b/web/converse/migrations/2018-04-14-170750_search-index/down.sql new file mode 100644 index 000000000000..c57e66290201 --- /dev/null +++ b/web/converse/migrations/2018-04-14-170750_search-index/down.sql @@ -0,0 +1,2 @@ +DROP INDEX idx_fts_search; +DROP MATERIALIZED VIEW search_index; diff --git a/web/converse/migrations/2018-04-14-170750_search-index/up.sql b/web/converse/migrations/2018-04-14-170750_search-index/up.sql new file mode 100644 index 000000000000..6b7d90eca63c --- /dev/null +++ b/web/converse/migrations/2018-04-14-170750_search-index/up.sql @@ -0,0 +1,21 @@ +-- Prepare a materialised view containing the tsvector data for all +-- threads and posts. This view is indexed using a GIN-index to enable +-- performant full-text searches. +-- +-- For now the query language is hardcoded to be English. + +CREATE MATERIALIZED VIEW search_index AS + SELECT p.id AS post_id, + p.author_name AS author, + t.id AS thread_id, + t.title AS title, + p.body AS body, + setweight(to_tsvector('english', t.title), 'B') || + setweight(to_tsvector('english', p.body), 'A') || + setweight(to_tsvector('simple', t.author_name), 'C') || + setweight(to_tsvector('simple', p.author_name), 'C') AS document + FROM posts p + JOIN threads t + ON t.id = p.thread_id; + +CREATE INDEX idx_fts_search ON search_index USING gin(document); diff --git a/web/converse/migrations/2018-05-01-141548_add-users/down.sql b/web/converse/migrations/2018-05-01-141548_add-users/down.sql new file mode 100644 index 000000000000..61fd222e18cf --- /dev/null +++ b/web/converse/migrations/2018-05-01-141548_add-users/down.sql @@ -0,0 +1,63 @@ +-- First restore the old columns: +ALTER TABLE threads ADD COLUMN author_name VARCHAR; +ALTER TABLE threads ADD COLUMN author_email VARCHAR; +ALTER TABLE posts ADD COLUMN author_name VARCHAR; +ALTER TABLE posts ADD COLUMN author_email VARCHAR; + +-- Then select the data back into them: +UPDATE threads SET author_name = users.name, + author_email = users.email + FROM users + WHERE threads.user_id = users.id; + +UPDATE posts SET author_name = users.name, + author_email = users.email + FROM users + WHERE posts.user_id = users.id; + +-- add the constraints back: +ALTER TABLE threads ALTER COLUMN author_name SET NOT NULL; +ALTER TABLE threads ALTER COLUMN author_email SET NOT NULL; +ALTER TABLE posts ALTER COLUMN author_name SET NOT NULL; +ALTER TABLE posts ALTER COLUMN author_email SET NOT NULL; + +-- reset the index view: +CREATE OR REPLACE VIEW thread_index AS + SELECT t.id AS thread_id, + t.title AS title, + t.author_name AS thread_author, + t.posted AS created, + t.sticky AS sticky, + p.id AS post_id, + p.author_name AS post_author, + p.posted AS posted + FROM threads t + JOIN (SELECT DISTINCT ON (thread_id) + id, thread_id, author_name, posted + FROM posts + ORDER BY thread_id, id DESC) AS p + ON t.id = p.thread_id + ORDER BY t.sticky DESC, p.id DESC; + +-- reset the search view: +DROP MATERIALIZED VIEW search_index; +CREATE MATERIALIZED VIEW search_index AS + SELECT p.id AS post_id, + p.author_name AS author, + t.id AS thread_id, + t.title AS title, + p.body AS body, + setweight(to_tsvector('english', t.title), 'B') || + setweight(to_tsvector('english', p.body), 'A') || + setweight(to_tsvector('simple', t.author_name), 'C') || + setweight(to_tsvector('simple', p.author_name), 'C') AS document + FROM posts p + JOIN threads t + ON t.id = p.thread_id; + +CREATE INDEX idx_fts_search ON search_index USING gin(document); + +-- and drop the users table and columns: +ALTER TABLE posts DROP COLUMN user_id; +ALTER TABLE threads DROP COLUMN user_id; +DROP TABLE users; diff --git a/web/converse/migrations/2018-05-01-141548_add-users/up.sql b/web/converse/migrations/2018-05-01-141548_add-users/up.sql new file mode 100644 index 000000000000..fcb7133e8e41 --- /dev/null +++ b/web/converse/migrations/2018-05-01-141548_add-users/up.sql @@ -0,0 +1,83 @@ +-- This query creates a users table and migrates the existing user +-- information (from the posts table) into it. + +CREATE TABLE users ( + id SERIAL PRIMARY KEY, + email VARCHAR NOT NULL UNIQUE, + name VARCHAR NOT NULL, + admin BOOLEAN NOT NULL DEFAULT false +); + +-- Insert the 'anonymous' user explicitly: +INSERT INTO users (name, email) + VALUES ('Anonymous', 'anonymous@nothing.org'); + +INSERT INTO users (id, email, name) + SELECT nextval('users_id_seq'), + author_email AS email, + author_name AS name + FROM posts + WHERE author_email != 'anonymous@nothing.org' + GROUP BY name, email; + +-- Create the 'user_id' column in the relevant tables (initially +-- without a not-null constraint) and populate it with the data +-- selected above: +ALTER TABLE posts ADD COLUMN user_id INTEGER REFERENCES users (id); +UPDATE posts SET user_id = users.id + FROM users + WHERE users.email = posts.author_email; + +ALTER TABLE threads ADD COLUMN user_id INTEGER REFERENCES users (id); +UPDATE threads SET user_id = users.id + FROM users + WHERE users.email = threads.author_email; + +-- Add the constraints: +ALTER TABLE posts ALTER COLUMN user_id SET NOT NULL; +ALTER TABLE threads ALTER COLUMN user_id SET NOT NULL; + +-- Update the index view: +CREATE OR REPLACE VIEW thread_index AS + SELECT t.id AS thread_id, + t.title AS title, + ta.name AS thread_author, + t.posted AS created, + t.sticky AS sticky, + p.id AS post_id, + pa.name AS post_author, + p.posted AS posted + FROM threads t + JOIN (SELECT DISTINCT ON (thread_id) + id, thread_id, user_id, posted + FROM posts + ORDER BY thread_id, id DESC) AS p + ON t.id = p.thread_id + JOIN users ta ON ta.id = t.user_id + JOIN users pa ON pa.id = p.user_id + ORDER BY t.sticky DESC, p.id DESC; + +-- Update the search view: +DROP MATERIALIZED VIEW search_index; +CREATE MATERIALIZED VIEW search_index AS + SELECT p.id AS post_id, + pa.name AS author, + t.id AS thread_id, + t.title AS title, + p.body AS body, + setweight(to_tsvector('english', t.title), 'B') || + setweight(to_tsvector('english', p.body), 'A') || + setweight(to_tsvector('simple', ta.name), 'C') || + setweight(to_tsvector('simple', pa.name), 'C') AS document + FROM posts p + JOIN threads t ON t.id = p.thread_id + JOIN users ta ON ta.id = t.user_id + JOIN users pa ON pa.id = p.user_id; + +CREATE INDEX idx_fts_search ON search_index USING gin(document); + +-- And drop the old fields: +ALTER TABLE posts DROP COLUMN author_name; +ALTER TABLE posts DROP COLUMN author_email; +ALTER TABLE threads DROP COLUMN author_name; +ALTER TABLE threads DROP COLUMN author_email; diff --git a/web/converse/migrations/2018-05-01-183232_simplified-post-view/down.sql b/web/converse/migrations/2018-05-01-183232_simplified-post-view/down.sql new file mode 100644 index 000000000000..0f14732f3845 --- /dev/null +++ b/web/converse/migrations/2018-05-01-183232_simplified-post-view/down.sql @@ -0,0 +1 @@ +DROP VIEW simple_posts; diff --git a/web/converse/migrations/2018-05-01-183232_simplified-post-view/up.sql b/web/converse/migrations/2018-05-01-183232_simplified-post-view/up.sql new file mode 100644 index 000000000000..280fef87003e --- /dev/null +++ b/web/converse/migrations/2018-05-01-183232_simplified-post-view/up.sql @@ -0,0 +1,11 @@ +-- Creates a view for listing posts akin to the post table before +-- splitting out users. This exists to avoid having to do joining +-- logic and such inside of the application. + +CREATE VIEW simple_posts AS + SELECT p.id AS id, + thread_id, body, posted, user_id, + users.name AS author_name, + users.email AS author_email + FROM posts p + JOIN users ON users.id = p.user_id; diff --git a/web/converse/migrations/2018-05-25-160648_add_closed_column/down.sql b/web/converse/migrations/2018-05-25-160648_add_closed_column/down.sql new file mode 100644 index 000000000000..fb2a98c0af42 --- /dev/null +++ b/web/converse/migrations/2018-05-25-160648_add_closed_column/down.sql @@ -0,0 +1 @@ +ALTER TABLE threads DROP COLUMN closed; diff --git a/web/converse/migrations/2018-05-25-160648_add_closed_column/up.sql b/web/converse/migrations/2018-05-25-160648_add_closed_column/up.sql new file mode 100644 index 000000000000..d7d4c44da201 --- /dev/null +++ b/web/converse/migrations/2018-05-25-160648_add_closed_column/up.sql @@ -0,0 +1 @@ +ALTER TABLE threads ADD COLUMN closed BOOLEAN NOT NULL DEFAULT false; diff --git a/web/converse/migrations/2018-05-25-161939_add_closed_to_index/down.sql b/web/converse/migrations/2018-05-25-161939_add_closed_to_index/down.sql new file mode 100644 index 000000000000..1063fdc88224 --- /dev/null +++ b/web/converse/migrations/2018-05-25-161939_add_closed_to_index/down.sql @@ -0,0 +1,30 @@ +-- Update the index view: +DROP VIEW thread_index; +CREATE VIEW thread_index AS + SELECT t.id AS thread_id, + t.title AS title, + ta.name AS thread_author, + t.posted AS created, + t.sticky AS sticky, + p.id AS post_id, + pa.name AS post_author, + p.posted AS posted + FROM threads t + JOIN (SELECT DISTINCT ON (thread_id) + id, thread_id, user_id, posted + FROM posts + ORDER BY thread_id, id DESC) AS p + ON t.id = p.thread_id + JOIN users ta ON ta.id = t.user_id + JOIN users pa ON pa.id = p.user_id + ORDER BY t.sticky DESC, p.id DESC; + +-- Update the post view: +DROP VIEW simple_posts; +CREATE VIEW simple_posts AS + SELECT p.id AS id, + thread_id, body, posted, user_id, + users.name AS author_name, + users.email AS author_email + FROM posts p + JOIN users ON users.id = p.user_id; diff --git a/web/converse/migrations/2018-05-25-161939_add_closed_to_index/up.sql b/web/converse/migrations/2018-05-25-161939_add_closed_to_index/up.sql new file mode 100644 index 000000000000..87580a2f3f9e --- /dev/null +++ b/web/converse/migrations/2018-05-25-161939_add_closed_to_index/up.sql @@ -0,0 +1,35 @@ +-- Update the index view: +DROP VIEW thread_index; +CREATE VIEW thread_index AS + SELECT t.id AS thread_id, + t.title AS title, + ta.name AS thread_author, + t.posted AS created, + t.sticky AS sticky, + t.closed AS closed, + p.id AS post_id, + pa.name AS post_author, + p.posted AS posted + FROM threads t + JOIN (SELECT DISTINCT ON (thread_id) + id, thread_id, user_id, posted + FROM posts + ORDER BY thread_id, id DESC) AS p + ON t.id = p.thread_id + JOIN users ta ON ta.id = t.user_id + JOIN users pa ON pa.id = p.user_id + ORDER BY t.sticky DESC, p.id DESC; + +-- Update post view: +DROP VIEW simple_posts; +CREATE VIEW simple_posts AS + SELECT p.id AS id, + thread_id, body, + p.posted AS posted, + p.user_id AS user_id, + threads.closed AS closed, + users.name AS author_name, + users.email AS author_email + FROM posts p + JOIN users ON users.id = p.user_id + JOIN threads ON threads.id = p.thread_id; diff --git a/web/converse/src/db.rs b/web/converse/src/db.rs new file mode 100644 index 000000000000..a0d8915504d6 --- /dev/null +++ b/web/converse/src/db.rs @@ -0,0 +1,317 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +//! This module implements the database executor, which holds the +//! database connection and performs queries on it. + +use crate::errors::{ConverseError, Result}; +use crate::models::*; +use actix::prelude::*; +use diesel::prelude::*; +use diesel::r2d2::{ConnectionManager, Pool}; +use diesel::sql_types::Text; +use diesel::{self, sql_query}; + +/// Raw PostgreSQL query used to perform full-text search on posts +/// with a supplied phrase. For now, the query language is hardcoded +/// to English and only "plain" queries (i.e. no searches for exact +/// matches or more advanced query syntax) are supported. +const SEARCH_QUERY: &'static str = r#" +WITH search_query (query) AS (VALUES (plainto_tsquery('english', $1))) +SELECT post_id, + thread_id, + author, + title, + ts_headline('english', body, query) AS headline + FROM search_index, search_query + WHERE document @@ query + ORDER BY ts_rank(document, query) DESC + LIMIT 50 +"#; + +const REFRESH_QUERY: &'static str = "REFRESH MATERIALIZED VIEW search_index"; + +pub struct DbExecutor(pub Pool<ConnectionManager<PgConnection>>); + +impl DbExecutor { + /// Request a list of threads. + // TODO(tazjin): This should support pagination. + pub fn list_threads(&self) -> Result<Vec<ThreadIndex>> { + use crate::schema::thread_index::dsl::*; + + let conn = self.0.get()?; + let results = thread_index.load::<ThreadIndex>(&conn)?; + Ok(results) + } + + /// Look up a user based on their email-address. If the user does + /// not exist, it is created. + pub fn lookup_or_create_user(&self, user_email: &str, user_name: &str) -> Result<User> { + use crate::schema::users; + use crate::schema::users::dsl::*; + + let conn = self.0.get()?; + + let opt_user = users.filter(email.eq(email)).first(&conn).optional()?; + + if let Some(user) = opt_user { + Ok(user) + } else { + let new_user = NewUser { + email: user_email.to_string(), + name: user_name.to_string(), + }; + + let user: User = diesel::insert_into(users::table) + .values(&new_user) + .get_result(&conn)?; + + info!("Created new user {} with ID {}", new_user.email, user.id); + + Ok(user) + } + } + + /// Fetch a specific thread and return it with its posts. + pub fn get_thread(&self, thread_id: i32) -> Result<(Thread, Vec<SimplePost>)> { + use crate::schema::simple_posts::dsl::id; + use crate::schema::threads::dsl::*; + + let conn = self.0.get()?; + let thread_result: Thread = threads.find(thread_id).first(&conn)?; + + let post_list = SimplePost::belonging_to(&thread_result) + .order_by(id.asc()) + .load::<SimplePost>(&conn)?; + + Ok((thread_result, post_list)) + } + + /// Fetch a specific post. + pub fn get_post(&self, post_id: i32) -> Result<SimplePost> { + use crate::schema::simple_posts::dsl::*; + let conn = self.0.get()?; + Ok(simple_posts.find(post_id).first(&conn)?) + } + + /// Update the content of a post. + pub fn update_post(&self, post_id: i32, post_text: String) -> Result<Post> { + use crate::schema::posts::dsl::*; + let conn = self.0.get()?; + let updated = diesel::update(posts.find(post_id)) + .set(body.eq(post_text)) + .get_result(&conn)?; + + Ok(updated) + } + + /// Create a new thread. + pub fn create_thread(&self, new_thread: NewThread, post_text: String) -> Result<Thread> { + use crate::schema::{posts, threads}; + + let conn = self.0.get()?; + + conn.transaction::<Thread, ConverseError, _>(|| { + // First insert the thread structure itself + let thread: Thread = diesel::insert_into(threads::table) + .values(&new_thread) + .get_result(&conn)?; + + // ... then create the first post in the thread. + let new_post = NewPost { + thread_id: thread.id, + body: post_text, + user_id: new_thread.user_id, + }; + + diesel::insert_into(posts::table) + .values(&new_post) + .execute(&conn)?; + + Ok(thread) + }) + } + + /// Create a new post. + pub fn create_post(&self, new_post: NewPost) -> Result<Post> { + use crate::schema::posts; + + let conn = self.0.get()?; + + let closed: bool = { + use crate::schema::threads::dsl::*; + threads + .select(closed) + .find(new_post.thread_id) + .first(&conn)? + }; + + if closed { + return Err(ConverseError::ThreadClosed { + id: new_post.thread_id, + }); + } + + Ok(diesel::insert_into(posts::table) + .values(&new_post) + .get_result(&conn)?) + } + + /// Search for posts. + pub fn search_posts(&self, query: String) -> Result<Vec<SearchResult>> { + let conn = self.0.get()?; + + let search_results = sql_query(SEARCH_QUERY) + .bind::<Text, _>(query) + .get_results::<SearchResult>(&conn)?; + + Ok(search_results) + } + + /// Trigger a refresh of the view used for full-text searching. + pub fn refresh_search_view(&self) -> Result<()> { + let conn = self.0.get()?; + debug!("Refreshing search_index view in DB"); + sql_query(REFRESH_QUERY).execute(&conn)?; + Ok(()) + } +} + +// Old actor implementation: + +impl Actor for DbExecutor { + type Context = SyncContext<Self>; +} + +/// Message used to look up a user based on their email-address. If +/// the user does not exist, it is created. +pub struct LookupOrCreateUser { + pub email: String, + pub name: String, +} + +message!(LookupOrCreateUser, Result<User>); + +impl Handler<LookupOrCreateUser> for DbExecutor { + type Result = <LookupOrCreateUser as Message>::Result; + + fn handle(&mut self, _: LookupOrCreateUser, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message used to fetch a specific thread. Returns the thread and +/// its posts. +pub struct GetThread(pub i32); +message!(GetThread, Result<(Thread, Vec<SimplePost>)>); + +impl Handler<GetThread> for DbExecutor { + type Result = <GetThread as Message>::Result; + + fn handle(&mut self, _: GetThread, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message used to fetch a specific post. +#[derive(Deserialize, Debug)] +pub struct GetPost { + pub id: i32, +} + +message!(GetPost, Result<SimplePost>); + +impl Handler<GetPost> for DbExecutor { + type Result = <GetPost as Message>::Result; + + fn handle(&mut self, _: GetPost, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message used to update the content of a post. +#[derive(Deserialize)] +pub struct UpdatePost { + pub post_id: i32, + pub post: String, +} + +message!(UpdatePost, Result<Post>); + +impl Handler<UpdatePost> for DbExecutor { + type Result = Result<Post>; + + fn handle(&mut self, _: UpdatePost, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message used to create a new thread +pub struct CreateThread { + pub new_thread: NewThread, + pub post: String, +} +message!(CreateThread, Result<Thread>); + +impl Handler<CreateThread> for DbExecutor { + type Result = <CreateThread as Message>::Result; + + fn handle(&mut self, _: CreateThread, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message used to create a new reply +pub struct CreatePost(pub NewPost); +message!(CreatePost, Result<Post>); + +impl Handler<CreatePost> for DbExecutor { + type Result = <CreatePost as Message>::Result; + + fn handle(&mut self, _: CreatePost, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message used to search for posts +#[derive(Deserialize)] +pub struct SearchPosts { + pub query: String, +} +message!(SearchPosts, Result<Vec<SearchResult>>); + +impl Handler<SearchPosts> for DbExecutor { + type Result = <SearchPosts as Message>::Result; + + fn handle(&mut self, _: SearchPosts, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} + +/// Message that triggers a refresh of the view used for full-text +/// searching. +pub struct RefreshSearchView; +message!(RefreshSearchView, Result<()>); + +impl Handler<RefreshSearchView> for DbExecutor { + type Result = Result<()>; + + fn handle(&mut self, _: RefreshSearchView, _: &mut Self::Context) -> Self::Result { + unimplemented!() + } +} diff --git a/web/converse/src/errors.rs b/web/converse/src/errors.rs new file mode 100644 index 000000000000..a4bd69023b8b --- /dev/null +++ b/web/converse/src/errors.rs @@ -0,0 +1,139 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +//! This module defines custom error types using the `failure`-crate. +//! Links to foreign error types (such as database connection errors) +//! are established in a similar way as was tradition in +//! `error_chain`, albeit manually. + +use actix_web::http::StatusCode; +use actix_web::{HttpResponse, ResponseError}; +use std::result; + +// Modules with foreign errors: +use {actix, actix_web, askama, diesel, r2d2, tokio_timer}; + +pub type Result<T> = result::Result<T, ConverseError>; +pub type ConverseResult<T> = result::Result<T, ConverseError>; + +#[derive(Debug, Fail)] +pub enum ConverseError { + #[fail(display = "an internal Converse error occured: {}", reason)] + InternalError { reason: String }, + + #[fail(display = "a database error occured: {}", error)] + Database { error: diesel::result::Error }, + + #[fail(display = "a database connection pool error occured: {}", error)] + ConnectionPool { error: r2d2::Error }, + + #[fail(display = "a template rendering error occured: {}", reason)] + Template { reason: String }, + + #[fail(display = "error occured during request handling: {}", error)] + ActixWeb { error: actix_web::Error }, + + #[fail(display = "error occured running timer: {}", error)] + Timer { error: tokio_timer::Error }, + + #[fail(display = "user {} does not have permission to edit post {}", user, id)] + PostEditForbidden { user: i32, id: i32 }, + + #[fail(display = "thread {} is closed and can not be responded to", id)] + ThreadClosed { id: i32 }, + + #[fail(display = "JSON serialisation failed: {}", error)] + Serialisation { error: serde_json::Error }, + + // This variant is used as a catch-all for wrapping + // actix-web-compatible response errors, such as the errors it + // throws itself. + #[fail(display = "Actix response error: {}", error)] + Actix { error: Box<dyn ResponseError> }, +} + +// Establish conversion links to foreign errors: + +impl From<diesel::result::Error> for ConverseError { + fn from(error: diesel::result::Error) -> ConverseError { + ConverseError::Database { error } + } +} + +impl From<r2d2::Error> for ConverseError { + fn from(error: r2d2::Error) -> ConverseError { + ConverseError::ConnectionPool { error } + } +} + +impl From<askama::Error> for ConverseError { + fn from(error: askama::Error) -> ConverseError { + ConverseError::Template { + reason: format!("{}", error), + } + } +} + +impl From<actix::MailboxError> for ConverseError { + fn from(error: actix::MailboxError) -> ConverseError { + ConverseError::Actix { + error: Box::new(error), + } + } +} + +impl From<actix_web::Error> for ConverseError { + fn from(error: actix_web::Error) -> ConverseError { + ConverseError::ActixWeb { error } + } +} + +impl From<serde_json::Error> for ConverseError { + fn from(error: serde_json::Error) -> ConverseError { + ConverseError::Serialisation { error } + } +} + +impl From<curl::Error> for ConverseError { + fn from(error: curl::Error) -> ConverseError { + ConverseError::InternalError { + reason: format!("error during HTTP request: {}", error), + } + } +} + +impl From<tokio_timer::Error> for ConverseError { + fn from(error: tokio_timer::Error) -> ConverseError { + ConverseError::Timer { error } + } +} + +// Support conversion of error type into HTTP error responses: + +impl ResponseError for ConverseError { + fn error_response(&self) -> HttpResponse { + // Everything is mapped to internal server errors for now. + match *self { + ConverseError::ThreadClosed { id } => HttpResponse::SeeOther() + .header("Location", format!("/thread/{}#post-reply", id)) + .finish(), + _ => HttpResponse::build(StatusCode::INTERNAL_SERVER_ERROR) + .body(format!("An error occured: {}", self)), + } + } +} diff --git a/web/converse/src/handlers.rs b/web/converse/src/handlers.rs new file mode 100644 index 000000000000..49f9dcf9745f --- /dev/null +++ b/web/converse/src/handlers.rs @@ -0,0 +1,391 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +//! This module contains the implementation of converse's actix-web +//! HTTP handlers. +//! +//! Most handlers have an associated rendering function using one of +//! the tera templates stored in the `/templates` directory in the +//! project root. + +use crate::db::*; +use crate::errors::{ConverseError, ConverseResult}; +use crate::models::*; +use crate::oidc::*; +use crate::render::*; +use actix::prelude::*; +use actix_web; +use actix_web::http::Method; +use actix_web::middleware::identity::RequestIdentity; +use actix_web::middleware::{Middleware, Started}; +use actix_web::*; +use futures::Future; + +use rouille::{Request, Response}; + +type ConverseResponse = Box<dyn Future<Item = HttpResponse, Error = ConverseError>>; + +const HTML: &'static str = "text/html"; +const ANONYMOUS: i32 = 1; +const NEW_THREAD_LENGTH_ERR: &'static str = "Title and body can not be empty!"; + +/// Represents the state carried by the web server actors. +pub struct AppState { + /// Address of the database actor + pub db: Addr<DbExecutor>, + + /// Address of the OIDC actor + pub oidc: Addr<OidcExecutor>, + + /// Address of the rendering actor + pub renderer: Addr<Renderer>, +} + +/// Serve the forum's index page. +pub fn forum_index_rouille(db: &DbExecutor) -> ConverseResult<Response> { + let threads = db.list_threads()?; + Ok(Response::html(index_page(threads)?)) +} + +pub fn forum_index(_: State<AppState>) -> ConverseResponse { + unimplemented!() +} + +/// Returns the ID of the currently logged in user. If there is no ID +/// present, the ID of the anonymous user will be returned. +pub fn get_user_id(req: &HttpRequest<AppState>) -> i32 { + if let Some(id) = req.identity() { + // If this .expect() call is triggered, someone is likely + // attempting to mess with their cookies. These requests can + // be allowed to fail without further ado. + id.parse().expect("Session cookie contained invalid data!") + } else { + ANONYMOUS + } +} + +pub fn get_user_id_rouille(_req: &Request) -> i32 { + // TODO(tazjin): Implement session support in rouille somehow. + ANONYMOUS +} + +pub fn forum_thread_rouille( + req: &Request, + db: &DbExecutor, + thread_id: i32, +) -> ConverseResult<Response> { + let user = get_user_id_rouille(&req); + let thread = db.get_thread(thread_id)?; + Ok(Response::html(thread_page(user, thread.0, thread.1)?)) +} + +/// This handler retrieves and displays a single forum thread. +pub fn forum_thread( + _: State<AppState>, + _: HttpRequest<AppState>, + _: Path<i32>, +) -> ConverseResponse { + unimplemented!() +} + +/// This handler presents the user with the "New Thread" form. +pub fn new_thread(state: State<AppState>) -> ConverseResponse { + state + .renderer + .send(NewThreadPage::default()) + .flatten() + .map(|res| HttpResponse::Ok().content_type(HTML).body(res)) + .responder() +} + +#[derive(Deserialize)] +pub struct NewThreadForm { + pub title: String, + pub post: String, +} + +/// This handler receives a "New thread"-form and redirects the user +/// to the new thread after creation. +pub fn submit_thread( + (state, input, req): (State<AppState>, Form<NewThreadForm>, HttpRequest<AppState>), +) -> ConverseResponse { + // Trim whitespace out of inputs: + let input = NewThreadForm { + title: input.title.trim().into(), + post: input.post.trim().into(), + }; + + // Perform simple validation and abort here if it fails: + if input.title.is_empty() || input.post.is_empty() { + return state + .renderer + .send(NewThreadPage { + alerts: vec![NEW_THREAD_LENGTH_ERR], + title: Some(input.title), + post: Some(input.post), + }) + .flatten() + .map(|res| HttpResponse::Ok().content_type(HTML).body(res)) + .responder(); + } + + let user_id = get_user_id(&req); + + let new_thread = NewThread { + user_id, + title: input.title, + }; + + let msg = CreateThread { + new_thread, + post: input.post, + }; + + state + .db + .send(msg) + .from_err() + .and_then(move |res| { + let thread = res?; + info!( + "Created new thread \"{}\" with ID {}", + thread.title, thread.id + ); + Ok(HttpResponse::SeeOther() + .header("Location", format!("/thread/{}", thread.id)) + .finish()) + }) + .responder() +} + +#[derive(Deserialize)] +pub struct NewPostForm { + pub thread_id: i32, + pub post: String, +} + +/// This handler receives a "Reply"-form and redirects the user to the +/// new post after creation. +pub fn reply_thread( + state: State<AppState>, + input: Form<NewPostForm>, + req: HttpRequest<AppState>, +) -> ConverseResponse { + let user_id = get_user_id(&req); + + let new_post = NewPost { + user_id, + thread_id: input.thread_id, + body: input.post.trim().into(), + }; + + state + .db + .send(CreatePost(new_post)) + .flatten() + .from_err() + .and_then(move |post| { + info!("Posted reply {} to thread {}", post.id, post.thread_id); + Ok(HttpResponse::SeeOther() + .header( + "Location", + format!("/thread/{}#post-{}", post.thread_id, post.id), + ) + .finish()) + }) + .responder() +} + +/// This handler presents the user with the form to edit a post. If +/// the user attempts to edit a post that they do not have access to, +/// they are currently ungracefully redirected back to the post +/// itself. +pub fn edit_form( + state: State<AppState>, + req: HttpRequest<AppState>, + query: Path<GetPost>, +) -> ConverseResponse { + let user_id = get_user_id(&req); + + state + .db + .send(query.into_inner()) + .flatten() + .from_err() + .and_then(move |post| { + if user_id != 1 && post.user_id == user_id { + return Ok(post); + } + + Err(ConverseError::PostEditForbidden { + user: user_id, + id: post.id, + }) + }) + .and_then(move |post| { + let edit_msg = EditPostPage { + id: post.id, + post: post.body, + }; + + state.renderer.send(edit_msg).from_err() + }) + .flatten() + .map(|page| HttpResponse::Ok().content_type(HTML).body(page)) + .responder() +} + +/// This handler "executes" an edit to a post if the current user owns +/// the edited post. +pub fn edit_post( + state: State<AppState>, + req: HttpRequest<AppState>, + update: Form<UpdatePost>, +) -> ConverseResponse { + let user_id = get_user_id(&req); + + state + .db + .send(GetPost { id: update.post_id }) + .flatten() + .from_err() + .and_then(move |post| { + if user_id != 1 && post.user_id == user_id { + Ok(()) + } else { + Err(ConverseError::PostEditForbidden { + user: user_id, + id: post.id, + }) + } + }) + .and_then(move |_| state.db.send(update.0).from_err()) + .flatten() + .map(|updated| { + HttpResponse::SeeOther() + .header( + "Location", + format!("/thread/{}#post-{}", updated.thread_id, updated.id), + ) + .finish() + }) + .responder() +} + +/// This handler executes a full-text search on the forum database and +/// displays the results to the user. +pub fn search_forum(state: State<AppState>, query: Query<SearchPosts>) -> ConverseResponse { + let query_string = query.query.clone(); + state + .db + .send(query.into_inner()) + .flatten() + .and_then(move |results| { + state + .renderer + .send(SearchResultPage { + results, + query: query_string, + }) + .from_err() + }) + .flatten() + .map(|res| HttpResponse::Ok().content_type(HTML).body(res)) + .responder() +} + +/// This handler initiates an OIDC login. +pub fn login(state: State<AppState>) -> ConverseResponse { + state + .oidc + .send(GetLoginUrl) + .from_err() + .and_then(|url| { + Ok(HttpResponse::TemporaryRedirect() + .header("Location", url) + .finish()) + }) + .responder() +} + +/// This handler handles an OIDC callback (i.e. completed login). +/// +/// Upon receiving the callback, a token is retrieved from the OIDC +/// provider and a user lookup is performed. If a user with a matching +/// email-address is found in the database, it is logged in - +/// otherwise a new user is created. +pub fn callback( + state: State<AppState>, + data: Form<CodeResponse>, + req: HttpRequest<AppState>, +) -> ConverseResponse { + state + .oidc + .send(RetrieveToken(data.0)) + .flatten() + .map(|author| LookupOrCreateUser { + email: author.email, + name: author.name, + }) + .and_then(move |msg| state.db.send(msg).from_err()) + .flatten() + .and_then(move |user| { + info!("Completed login for user {} ({})", user.email, user.id); + req.remember(user.id.to_string()); + Ok(HttpResponse::SeeOther().header("Location", "/").finish()) + }) + .responder() +} + +/// This is an extension trait to enable easy serving of embedded +/// static content. +/// +/// It is intended to be called with `include_bytes!()` when setting +/// up the actix-web application. +pub trait EmbeddedFile { + fn static_file(self, path: &'static str, content: &'static [u8]) -> Self; +} + +impl EmbeddedFile for App<AppState> { + fn static_file(self, path: &'static str, content: &'static [u8]) -> Self { + self.route(path, Method::GET, move |_: HttpRequest<_>| { + let mime = format!("{}", mime_guess::from_path(path).first_or_octet_stream()); + HttpResponse::Ok().content_type(mime.as_str()).body(content) + }) + } +} + +/// Middleware used to enforce logins unceremoniously. +pub struct RequireLogin; + +impl<S> Middleware<S> for RequireLogin { + fn start(&self, req: &HttpRequest<S>) -> actix_web::Result<Started> { + let logged_in = req.identity().is_some(); + let is_oidc_req = req.path().starts_with("/oidc"); + + if !is_oidc_req && !logged_in { + Ok(Started::Response( + HttpResponse::SeeOther() + .header("Location", "/oidc/login") + .finish(), + )) + } else { + Ok(Started::Done) + } + } +} diff --git a/web/converse/src/main.rs b/web/converse/src/main.rs new file mode 100644 index 000000000000..78d0241600b4 --- /dev/null +++ b/web/converse/src/main.rs @@ -0,0 +1,239 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +extern crate askama; + +#[macro_use] +extern crate diesel; + +#[macro_use] +extern crate failure; + +#[macro_use] +extern crate log; + +#[macro_use] +extern crate serde_derive; + +extern crate actix; +extern crate actix_web; +extern crate chrono; +extern crate comrak; +extern crate crimp; +extern crate curl; +extern crate env_logger; +extern crate futures; +extern crate hyper; +extern crate md5; +extern crate mime_guess; +extern crate r2d2; +extern crate rand; +extern crate rouille; +extern crate serde; +extern crate serde_json; +extern crate tokio; +extern crate tokio_timer; +extern crate url; +extern crate url_serde; + +/// Simple macro used to reduce boilerplate when defining actor +/// message types. +macro_rules! message { + ( $t:ty, $r:ty ) => { + impl Message for $t { + type Result = $r; + } + }; +} + +pub mod db; +pub mod errors; +pub mod handlers; +pub mod models; +pub mod oidc; +pub mod render; +pub mod schema; + +use crate::db::*; +use crate::handlers::*; +use crate::oidc::OidcExecutor; +use crate::render::Renderer; +use actix::prelude::*; +use actix_web::http::Method; +use actix_web::middleware::identity::{CookieIdentityPolicy, IdentityService}; +use actix_web::middleware::Logger; +use actix_web::*; +use diesel::pg::PgConnection; +use diesel::r2d2::{ConnectionManager, Pool}; +use rand::{OsRng, Rng}; +use std::env; + +fn config(name: &str) -> String { + env::var(name).expect(&format!("{} must be set", name)) +} + +fn config_default(name: &str, default: &str) -> String { + env::var(name).unwrap_or(default.into()) +} + +fn start_db_executor() -> Addr<DbExecutor> { + info!("Initialising database connection pool ..."); + let db_url = config("DATABASE_URL"); + + let manager = ConnectionManager::<PgConnection>::new(db_url); + let pool = Pool::builder() + .build(manager) + .expect("Failed to initialise DB pool"); + + SyncArbiter::start(2, move || DbExecutor(pool.clone())) +} + +fn schedule_search_refresh(db: Addr<DbExecutor>) { + use std::thread; + use std::time::{Duration, Instant}; + use tokio::prelude::*; + use tokio::timer::Interval; + + let task = Interval::new(Instant::now(), Duration::from_secs(60)) + .from_err() + .for_each(move |_| db.send(db::RefreshSearchView).flatten()) + .map_err(|err| error!("Error while updating search view: {}", err)); + + thread::spawn(|| tokio::run(task)); +} + +fn start_oidc_executor(base_url: &str) -> Addr<OidcExecutor> { + info!("Initialising OIDC integration ..."); + let oidc_url = config("OIDC_DISCOVERY_URL"); + let oidc_config = + oidc::load_oidc(&oidc_url).expect("Failed to retrieve OIDC discovery document"); + + let oidc = oidc::OidcExecutor { + oidc_config, + client_id: config("OIDC_CLIENT_ID"), + client_secret: config("OIDC_CLIENT_SECRET"), + redirect_uri: format!("{}/oidc/callback", base_url), + }; + + oidc.start() +} + +fn start_renderer() -> Addr<Renderer> { + let comrak = comrak::ComrakOptions { + github_pre_lang: true, + ext_strikethrough: true, + ext_table: true, + ext_autolink: true, + ext_tasklist: true, + ext_footnotes: true, + ext_tagfilter: true, + ..Default::default() + }; + + Renderer { comrak }.start() +} + +fn gen_session_key() -> [u8; 64] { + let mut key_bytes = [0; 64]; + let mut rng = OsRng::new().expect("Failed to retrieve RNG for key generation"); + rng.fill_bytes(&mut key_bytes); + + key_bytes +} + +fn start_http_server( + base_url: String, + db_addr: Addr<DbExecutor>, + oidc_addr: Addr<OidcExecutor>, + renderer_addr: Addr<Renderer>, +) { + info!("Initialising HTTP server ..."); + let bind_host = config_default("CONVERSE_BIND_HOST", "127.0.0.1:4567"); + let key = gen_session_key(); + let require_login = config_default("REQUIRE_LOGIN", "true".into()) == "true"; + + server::new(move || { + let state = AppState { + db: db_addr.clone(), + oidc: oidc_addr.clone(), + renderer: renderer_addr.clone(), + }; + + let identity = IdentityService::new( + CookieIdentityPolicy::new(&key) + .name("converse_auth") + .path("/") + .secure(base_url.starts_with("https")), + ); + + let app = App::with_state(state) + .middleware(Logger::default()) + .middleware(identity) + .resource("/", |r| r.method(Method::GET).with(forum_index)) + .resource("/thread/new", |r| r.method(Method::GET).with(new_thread)) + .resource("/thread/submit", |r| { + r.method(Method::POST).with(submit_thread) + }) + .resource("/thread/reply", |r| { + r.method(Method::POST).with(reply_thread) + }) + .resource("/thread/{id}", |r| r.method(Method::GET).with(forum_thread)) + .resource("/post/{id}/edit", |r| r.method(Method::GET).with(edit_form)) + .resource("/post/edit", |r| r.method(Method::POST).with(edit_post)) + .resource("/search", |r| r.method(Method::GET).with(search_forum)) + .resource("/oidc/login", |r| r.method(Method::GET).with(login)) + .resource("/oidc/callback", |r| r.method(Method::POST).with(callback)) + .static_file( + "/static/highlight.css", + include_bytes!("../static/highlight.css"), + ) + .static_file( + "/static/highlight.js", + include_bytes!("../static/highlight.js"), + ) + .static_file("/static/styles.css", include_bytes!("../static/styles.css")); + + if require_login { + app.middleware(RequireLogin) + } else { + app + } + }) + .bind(&bind_host) + .expect(&format!("Could not bind on '{}'", bind_host)) + .start(); +} + +fn main() { + env_logger::init(); + + info!("Welcome to Converse! Hold on tight while we're getting ready."); + let sys = actix::System::new("converse"); + + let base_url = config("BASE_URL"); + + let db_addr = start_db_executor(); + let oidc_addr = start_oidc_executor(&base_url); + let renderer_addr = start_renderer(); + + schedule_search_refresh(db_addr.clone()); + + start_http_server(base_url, db_addr, oidc_addr, renderer_addr); + + sys.run(); +} diff --git a/web/converse/src/models.rs b/web/converse/src/models.rs new file mode 100644 index 000000000000..63b15fbed061 --- /dev/null +++ b/web/converse/src/models.rs @@ -0,0 +1,127 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +use crate::schema::{posts, simple_posts, threads, users}; +use chrono::prelude::{DateTime, Utc}; +use diesel::sql_types::{Integer, Text}; + +/// Represents a single user in the Converse database. Converse does +/// not handle logins itself, but rather looks them up based on the +/// email address received from an OIDC provider. +#[derive(Identifiable, Queryable, Serialize)] +pub struct User { + pub id: i32, + pub name: String, + pub email: String, + pub admin: bool, +} + +#[derive(Identifiable, Queryable, Serialize, Associations)] +#[belongs_to(User)] +pub struct Thread { + pub id: i32, + pub title: String, + pub posted: DateTime<Utc>, + pub sticky: bool, + pub user_id: i32, + pub closed: bool, +} + +#[derive(Identifiable, Queryable, Serialize, Associations)] +#[belongs_to(Thread)] +#[belongs_to(User)] +pub struct Post { + pub id: i32, + pub thread_id: i32, + pub body: String, + pub posted: DateTime<Utc>, + pub user_id: i32, +} + +/// This struct is used as the query result type for the simplified +/// post view, which already joins user information in the database. +#[derive(Identifiable, Queryable, Serialize, Associations)] +#[belongs_to(Thread)] +pub struct SimplePost { + pub id: i32, + pub thread_id: i32, + pub body: String, + pub posted: DateTime<Utc>, + pub user_id: i32, + pub closed: bool, + pub author_name: String, + pub author_email: String, +} + +/// This struct is used as the query result type for the thread index +/// view, which lists the index of threads ordered by the last post in +/// each thread. +#[derive(Queryable, Serialize)] +pub struct ThreadIndex { + pub thread_id: i32, + pub title: String, + pub thread_author: String, + pub created: DateTime<Utc>, + pub sticky: bool, + pub closed: bool, + pub post_id: i32, + pub post_author: String, + pub posted: DateTime<Utc>, +} + +#[derive(Deserialize, Insertable)] +#[table_name = "threads"] +pub struct NewThread { + pub title: String, + pub user_id: i32, +} + +#[derive(Deserialize, Insertable)] +#[table_name = "users"] +pub struct NewUser { + pub email: String, + pub name: String, +} + +#[derive(Deserialize, Insertable)] +#[table_name = "posts"] +pub struct NewPost { + pub thread_id: i32, + pub body: String, + pub user_id: i32, +} + +/// This struct models the response of a full-text search query. It +/// does not use a table/schema definition struct like the other +/// tables, as no table of this type actually exists. +#[derive(QueryableByName, Debug, Serialize)] +pub struct SearchResult { + #[sql_type = "Integer"] + pub post_id: i32, + #[sql_type = "Integer"] + pub thread_id: i32, + #[sql_type = "Text"] + pub author: String, + #[sql_type = "Text"] + pub title: String, + + /// Headline represents the result of Postgres' ts_headline() + /// function, which highlights search terms in the search results. + #[sql_type = "Text"] + pub headline: String, +} diff --git a/web/converse/src/oidc.rs b/web/converse/src/oidc.rs new file mode 100644 index 000000000000..75e3eabc88f2 --- /dev/null +++ b/web/converse/src/oidc.rs @@ -0,0 +1,170 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +//! This module provides authentication via OIDC compliant +//! authentication sources. +//! +//! Currently Converse only supports a single OIDC provider. Note that +//! this has so far only been tested with Office365. + +use crate::errors::*; +use actix::prelude::*; +use crimp::Request; +use curl::easy::Form; +use url::Url; +use url_serde; + +/// This structure represents the contents of an OIDC discovery +/// document. +#[derive(Deserialize, Debug, Clone)] +pub struct OidcConfig { + #[serde(with = "url_serde")] + authorization_endpoint: Url, + token_endpoint: String, + userinfo_endpoint: String, + + scopes_supported: Vec<String>, + issuer: String, +} + +#[derive(Clone, Debug)] +pub struct OidcExecutor { + pub client_id: String, + pub client_secret: String, + pub redirect_uri: String, + pub oidc_config: OidcConfig, +} + +/// This struct represents the form response returned by an OIDC +/// provider with the `code`. +#[derive(Debug, Deserialize)] +pub struct CodeResponse { + pub code: String, +} + +/// This struct represents the data extracted from the ID token and +/// stored in the user's session. +#[derive(Debug, Serialize, Deserialize)] +pub struct Author { + pub name: String, + pub email: String, +} + +impl Actor for OidcExecutor { + type Context = Context<Self>; +} + +/// Message used to request the login URL: +pub struct GetLoginUrl; // TODO: Add a nonce parameter stored in session. +message!(GetLoginUrl, String); + +impl Handler<GetLoginUrl> for OidcExecutor { + type Result = String; + + fn handle(&mut self, _: GetLoginUrl, _: &mut Self::Context) -> Self::Result { + let mut url: Url = self.oidc_config.authorization_endpoint.clone(); + { + let mut params = url.query_pairs_mut(); + params.append_pair("client_id", &self.client_id); + params.append_pair("response_type", "code"); + params.append_pair("scope", "openid"); + params.append_pair("redirect_uri", &self.redirect_uri); + params.append_pair("response_mode", "form_post"); + } + return url.into_string(); + } +} + +/// Message used to request the token from the returned code and +/// retrieve userinfo from the appropriate endpoint. +pub struct RetrieveToken(pub CodeResponse); +message!(RetrieveToken, Result<Author>); + +#[derive(Debug, Deserialize)] +struct TokenResponse { + access_token: String, +} + +// TODO: This is currently hardcoded to Office365 fields. +#[derive(Debug, Deserialize)] +struct Userinfo { + name: String, + unique_name: String, // email in office365 +} + +impl Handler<RetrieveToken> for OidcExecutor { + type Result = Result<Author>; + + fn handle(&mut self, msg: RetrieveToken, _: &mut Self::Context) -> Self::Result { + debug!("Received OAuth2 code, requesting access_token"); + + let mut form = Form::new(); + form.part("client_id") + .contents(&self.client_id.as_bytes()) + .add() + .expect("critical error: invalid form data"); + + form.part("client_secret") + .contents(&self.client_secret.as_bytes()) + .add() + .expect("critical error: invalid form data"); + + form.part("grant_type") + .contents("authorization_code".as_bytes()) + .add() + .expect("critical error: invalid form data"); + + form.part("code") + .contents(&msg.0.code.as_bytes()) + .add() + .expect("critical error: invalid form data"); + + form.part("redirect_uri") + .contents(&self.redirect_uri.as_bytes()) + .add() + .expect("critical error: invalid form data"); + + let response = Request::post(&self.oidc_config.token_endpoint) + .user_agent(concat!("converse-", env!("CARGO_PKG_VERSION")))? + .form(form) + .send()?; + + debug!("Received token response: {:?}", response); + let token: TokenResponse = response.as_json()?.body; + + let bearer = format!("Bearer {}", token.access_token); + let user: Userinfo = Request::get(&self.oidc_config.userinfo_endpoint) + .user_agent(concat!("converse-", env!("CARGO_PKG_VERSION")))? + .header("Authorization", &bearer)? + .send()? + .as_json()? + .body; + + Ok(Author { + name: user.name, + email: user.unique_name, + }) + } +} + +/// Convenience function to attempt loading an OIDC discovery document +/// from a specified URL: +pub fn load_oidc(url: &str) -> Result<OidcConfig> { + let config: OidcConfig = Request::get(url).send()?.as_json()?.body; + Ok(config) +} diff --git a/web/converse/src/render.rs b/web/converse/src/render.rs new file mode 100644 index 000000000000..d06af12bd9f1 --- /dev/null +++ b/web/converse/src/render.rs @@ -0,0 +1,245 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +//! This module defines a rendering actor used for processing Converse +//! data into whatever format is needed by the templates and rendering +//! them. + +use crate::errors::*; +use crate::models::*; +use actix::prelude::*; +use askama::Template; +use chrono::prelude::{DateTime, Utc}; +use comrak::{markdown_to_html, ComrakOptions}; +use md5; +use std::fmt; + +pub struct Renderer { + pub comrak: ComrakOptions, +} + +impl Actor for Renderer { + type Context = actix::Context<Self>; +} + +/// Represents a data formatted for human consumption +#[derive(Debug)] +struct FormattedDate(DateTime<Utc>); + +impl fmt::Display for FormattedDate { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + write!(f, "{}", self.0.format("%a %d %B %Y, %R")) + } +} + +#[derive(Debug)] +struct IndexThread { + id: i32, + title: String, + sticky: bool, + closed: bool, + posted: FormattedDate, + author_name: String, + post_author: String, +} + +#[derive(Template)] +#[template(path = "index.html")] +struct IndexPageTemplate { + threads: Vec<IndexThread>, +} + +// "Renderable" structures with data transformations applied. +#[derive(Debug)] +struct RenderablePost { + id: i32, + body: String, + posted: FormattedDate, + author_name: String, + author_gravatar: String, + editable: bool, +} + +/// This structure represents the transformed thread data with +/// Markdown rendering and other changes applied. +#[derive(Template)] +#[template(path = "thread.html")] +struct RenderableThreadPage { + id: i32, + title: String, + closed: bool, + posts: Vec<RenderablePost>, +} + +/// Helper function for computing Gravatar links. +fn md5_hex(input: &[u8]) -> String { + format!("{:x}", md5::compute(input)) +} + +/// The different types of editing modes supported by the editing +/// template: +#[derive(Debug, PartialEq)] +pub enum EditingMode { + NewThread, + PostReply, + EditPost, +} + +impl Default for EditingMode { + fn default() -> EditingMode { + EditingMode::NewThread + } +} + +/// This is the template used for rendering the new thread, edit post +/// and reply to thread forms. +#[derive(Template, Default)] +#[template(path = "post.html")] +pub struct FormTemplate { + /// Which editing mode is to be used by the template? + pub mode: EditingMode, + + /// Potential alerts to display to the user (e.g. input validation + /// results) + pub alerts: Vec<&'static str>, + + /// Either the title to be used in the subject field or the title + /// of the thread the user is responding to. + pub title: Option<String>, + + /// Body of the post being edited, if present. + pub post: Option<String>, + + /// ID of the thread being replied to or the post being edited. + pub id: Option<i32>, +} + +/// Message used to render new thread page. +/// +/// It can optionally contain a vector of warnings to display to the +/// user in alert boxes, such as input validation errors. +#[derive(Default)] +pub struct NewThreadPage { + pub alerts: Vec<&'static str>, + pub title: Option<String>, + pub post: Option<String>, +} +message!(NewThreadPage, Result<String>); + +impl Handler<NewThreadPage> for Renderer { + type Result = Result<String>; + + fn handle(&mut self, msg: NewThreadPage, _: &mut Self::Context) -> Self::Result { + let ctx = FormTemplate { + alerts: msg.alerts, + title: msg.title, + post: msg.post, + ..Default::default() + }; + ctx.render().map_err(|e| e.into()) + } +} + +/// Message used to render post editing page. +pub struct EditPostPage { + pub id: i32, + pub post: String, +} +message!(EditPostPage, Result<String>); + +impl Handler<EditPostPage> for Renderer { + type Result = Result<String>; + + fn handle(&mut self, msg: EditPostPage, _: &mut Self::Context) -> Self::Result { + let ctx = FormTemplate { + mode: EditingMode::EditPost, + id: Some(msg.id), + post: Some(msg.post), + ..Default::default() + }; + + ctx.render().map_err(|e| e.into()) + } +} + +/// Message used to render search results +#[derive(Template)] +#[template(path = "search.html")] +pub struct SearchResultPage { + pub query: String, + pub results: Vec<SearchResult>, +} +message!(SearchResultPage, Result<String>); + +impl Handler<SearchResultPage> for Renderer { + type Result = Result<String>; + + fn handle(&mut self, msg: SearchResultPage, _: &mut Self::Context) -> Self::Result { + msg.render().map_err(|e| e.into()) + } +} + +// TODO: actor-free implementation below + +/// Render the index page for the given thread list. +pub fn index_page(threads: Vec<ThreadIndex>) -> Result<String> { + let threads: Vec<IndexThread> = threads + .into_iter() + .map(|thread| IndexThread { + id: thread.thread_id, + title: thread.title, // escape_html(&thread.title), + sticky: thread.sticky, + closed: thread.closed, + posted: FormattedDate(thread.posted), + author_name: thread.thread_author, + post_author: thread.post_author, + }) + .collect(); + + let tpl = IndexPageTemplate { threads }; + tpl.render().map_err(|e| e.into()) +} + +// Render the page of a given thread. +pub fn thread_page(user: i32, thread: Thread, posts: Vec<SimplePost>) -> Result<String> { + let posts = posts + .into_iter() + .map(|post| { + let editable = user != 1 && post.user_id == user; + + let comrak = ComrakOptions::default(); // TODO(tazjin): cheddar + RenderablePost { + id: post.id, + body: markdown_to_html(&post.body, &comrak), + posted: FormattedDate(post.posted), + author_name: post.author_name.clone(), + author_gravatar: md5_hex(post.author_email.as_bytes()), + editable, + } + }) + .collect(); + + let renderable = RenderableThreadPage { + posts, + closed: thread.closed, + id: thread.id, + title: thread.title, + }; + + Ok(renderable.render()?) +} diff --git a/web/converse/src/schema.rs b/web/converse/src/schema.rs new file mode 100644 index 000000000000..520af4342261 --- /dev/null +++ b/web/converse/src/schema.rs @@ -0,0 +1,83 @@ +// Copyright (C) 2018-2021 Vincent Ambo <tazjin@tvl.su> +// +// This file is part of Converse. +// +// This program is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see +// <https://www.gnu.org/licenses/>. + +table! { + posts (id) { + id -> Int4, + thread_id -> Int4, + body -> Text, + posted -> Timestamptz, + user_id -> Int4, + } +} + +table! { + threads (id) { + id -> Int4, + title -> Varchar, + posted -> Timestamptz, + sticky -> Bool, + user_id -> Int4, + closed -> Bool, + } +} + +table! { + users (id) { + id -> Int4, + email -> Varchar, + name -> Varchar, + admin -> Bool, + } +} + +// Note: Manually inserted as print-schema does not add views. +table! { + simple_posts (id) { + id -> Int4, + thread_id -> Int4, + body -> Text, + posted -> Timestamptz, + user_id -> Int4, + closed -> Bool, + author_name -> Text, + author_email -> Text, + } +} + +// Note: Manually inserted as print-schema does not add views. +table! { + thread_index (thread_id) { + thread_id -> Int4, + title -> Text, + thread_author -> Text, + created -> Timestamptz, + sticky -> Bool, + closed -> Bool, + post_id -> Int4, + post_author -> Text, + posted -> Timestamptz, + } +} 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+.thread-author { + font-style: italic; + font-size: 85%; +} + +@media only screen and (min-width: 768px) { + .converse main { + padding-top: 10px; + padding-bottom: 10px; + } +} + +.mdl-list__item-text-body { + max-height: 40px; +} + +.thread-divider:after { + border-bottom: 1px solid rgba(0,0,0,.13); + content:""; + position: absolute; + width: 80%; +} + +html, body { + margin: 0; + padding: 0; +} +.converse .mdl-layout__header-row { + padding-left: 40px; +} +.converse .mdl-layout.is-small-screen .mdl-layout__header-row h3 { + font-size: inherit; +} +.converse .mdl-card { + height: auto; + display: -webkit-flex; + display: -ms-flexbox; + display: flex; + -webkit-flex-direction: column; + -ms-flex-direction: column; + flex-direction: column; +} +.converse .mdl-card > * { + height: auto; +} +.converse .mdl-card .mdl-card__supporting-text { + margin: 40px; + -webkit-flex-grow: 1; + -ms-flex-positive: 1; + flex-grow: 1; + padding: 0; + color: inherit; + width: calc(100% - 80px); +} +.mdl-demo.converse .mdl-card__supporting-text h4 { + margin-top: 0; + margin-bottom: 20px; +} +.converse .mdl-card__actions { + margin: 0; + padding: 4px 40px; + color: inherit; +} +.converse section.section--center { + max-width: 860px; +} +.converse .mdl-card .avatar-card { + display: flex; + flex-direction: column; + text-align: center; + margin-top: 30px; +} +.desktop-avatar { + width: 80px; + margin-right: auto; + margin-left: auto; +} +.mobile-avatar { + width: 30px; + border-radius: 8px; + margin-bottom: 5px; +} +.mobile-date { + text-decoration: none; +} +.converse .mdl-card .post-box { + margin: 20px; +} +.converse .mdl-card .post-actions { + display: flex; + padding-right: 5px; +} +.post-action { + margin: 5px; + margin-bottom: 10px; +} +.converse section.post-section { + padding: 5px; +} +.post-date { + text-decoration: none; + font-size: 80%; +} +.mdl-layout__content { + flex: 1 0 auto; +} +.converse .reply-box { + padding-top: 10px; +} +.search-result { + margin: 8px; +} +.search-result .mdl-button { + margin: 3px; +} diff --git a/web/converse/templates/index.html b/web/converse/templates/index.html new file mode 100644 index 000000000000..07d6e7bfcf09 --- /dev/null +++ b/web/converse/templates/index.html @@ -0,0 +1,80 @@ +<!doctype html> +<html lang="en"> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"> + <title>Converse: Index</title> + + <!-- TODO --> + <meta http-equiv="Content-Security-Policy" content="script-src https://code.getmdl.io 'self';"> + <!-- <link rel="shortcut icon" href="images/favicon.png"> --> + + <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu"> + <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"> + <link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.blue_grey-orange.min.css" /> + <link rel="stylesheet" href="/static/styles.css"> + </head> + <body class="converse mdl-base mdl-color-text--grey-700 mdl-color--grey-100"> + <div class="mdl-layout mdl-layout--fixed-header mdl-js-layout mdl-color--grey-100"> + <header class="mdl-layout__header mdl-layout__header--scroll mdl-color--primary-dark"> + <div class="mdl-layout__header-row"> + <a href="/" class="mdl-layout-title mdl-color-text--blue-grey-50 cvs-title">Converse</a> + <div class="mdl-layout-spacer"></div> + <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label mdl-color-text--blue-grey-50 search-field"> + <form method="get" action="/search"> + <input class="mdl-textfield__input" type="search" id="search-query" aria-label="Search" name="query"> + <label class="mdl-textfield__label mdl-color-text--blue-grey-100" for="search-query">Search query...</label> + <input type="submit" hidden /> + </form> + </div> + + <a href="/thread/new"> + <button class="mdl-button mdl-js-button mdl-button--raised mdl-button--accent mdl-js-ripple-effect"> + New Thread + </button> + </a> + </div> + </header> + <main class="mdl-layout__content"> + <section class="section--center mdl-grid mdl-grid--no-spacing mdl-shadow--2dp"> + <div class="mdl-card mdl-cell mdl-cell--12-col"> + <div class="mdl-card__supporting-text mdl-grid"> + <h4 class="mdl-cell mdl-cell--12-col">Latest threads:</h4> + <ul class="mdl-list"> + {% for thread in threads %} + <li class="mdl-list__item thread-list-item mdl-list__item--three-line"> + <a class="thread-link mdl-color-text--grey-800" href="/thread/{{ thread.id }}"> + <span class="mdl-list__item-primary-content {% if loop.index < threads.len() %}thread-divider{% endif %}"> + <button class="mdl-button mdl-js-button mdl-button--fab mdl-button--mini-fab mdl-button--colored mdl-list__item-icon"> + <i class="material-icons"> + {% if thread.sticky %} + announcement + {% else if thread.closed %} + lock + {% else %} + library_books + {% endif %} + </i> + </button> + <span class="thread-title">{{ thread.title }}<span class="thread-author"> by {{ thread.author_name }}</span></span> + <span class="mdl-list__item-text-body"> + Last reply by {{ thread.post_author }} on {{ thread.posted }}. + </span> + </span> + </a> + </li> + {% endfor %} + </ul> + </div> + </div> + </section> + </main> + <footer class="mdl-mini-footer"> + <div class="mdl-mini-footer--right-section"> + <p>Powered by <a href="https://code.tvl.fyi/about/web/converse">Converse</a></p> + </div> + </footer> + </div> + <script src="https://code.getmdl.io/1.3.0/material.min.js"></script> + </body> +</html> diff --git a/web/converse/templates/post.html b/web/converse/templates/post.html new file mode 100644 index 000000000000..8ea2df1cd344 --- /dev/null +++ b/web/converse/templates/post.html @@ -0,0 +1,124 @@ +{# + This template is shared by the new thread, reply and post-editing pages. + + The main display differences between the different editing styles are the + headline of the page ("Submit new thread", "Reply to thread", "Edit post") + and whether or not the subject line field is displayed in the input form. + + Every one of these pages can have a variable length list of alerts submitted + into the template, which will be rendered as Boostrap alert boxes above the + user input form. +#} + +<!doctype html> +<html lang="en"> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"> + <title>Converse: Post</title> + + <meta http-equiv="Content-Security-Policy" content="script-src https://code.getmdl.io 'self';"> + <!-- <link rel="shortcut icon" href="images/favicon.png"> --> + + <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu"> + <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"> + <link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.blue_grey-orange.min.css" /> + <link rel="stylesheet" href="/static/styles.css"> + </head> + <body class="converse mdl-base mdl-color-text--grey-700 mdl-color--grey-100"> + <div class="mdl-layout mdl-layout--fixed-header mdl-js-layout mdl-color--grey-100"> + <header class="mdl-layout__header mdl-layout__header--scroll mdl-color--primary-dark"> + <div class="mdl-layout__header-row"> + <a href="/" class="mdl-layout-title mdl-color-text--blue-grey-50 cvs-title"> + {% match mode %} + {% when EditingMode::NewThread %} + Converse: Submit new thread + {% when EditingMode::PostReply %} + Converse: Reply to thread + {% when EditingMode::EditPost %} + Converse: Edit post + {% endmatch %} + </a> + <div class="mdl-layout-spacer"></div> + <a href="/"> + <button class="mdl-button mdl-js-button mdl-button--raised mdl-button--accent mdl-js-ripple-effect"> + Back to index + </button> + </a> + </div> + </header> + <main class="mdl-layout__content mdl-grid"> + <div class="mdl-card mdl-shadow--2dp mdl-cell--8-col"> + {% match mode %} + {% when EditingMode::NewThread %} + <form action="/thread/submit" method="post"> + {% when EditingMode::PostReply %} + <form action="/thread/reply" method="post"> + {% when EditingMode::EditPost %} + <form action="/post/edit" method="post"> + {% endmatch %} + {% match mode %} + {% when EditingMode::PostReply %} + <input type="hidden" id="thread_id" name="thread_id" value="{{ id.unwrap() }}"> + {% when EditingMode::EditPost %} + <input type="hidden" id="thread_id" name="post_id" value="{{ id.unwrap() }}"> + {% else %} + {# no post ID when making a new thread #} + {% endmatch %} + <div class="mdl-card__supporting-text"> + {% for alert in alerts %} + <span class="mdl-chip mdl-color--red-200"> + <span class="mdl-chip__text">{{ alert }} </span> + </span> + {% endfor %} + {% if mode == EditingMode::NewThread %} + <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label mdl-cell--12-col"> + <input class="mdl-textfield__input" type="text" id="title" name="title" aria-label="thread title" required {% match title %}{% when Some with (title_text) %}value="{{ title_text }}"{% else %}{# Nothing! #}{% endmatch %}> + <label class="mdl-textfield__label" for="title">Thread title</label> + </div> + {% endif %} + <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label mdl-cell--12-col"> + <textarea class="mdl-textfield__input" type="text" rows="25" id="post" name="post" aria-label="post content" required> + {%- match post -%} + {%- when Some with (post_text) -%} + {{- post_text -}} + {%- else -%} + {# Nothing! #} + {%- endmatch -%} + </textarea> + <label class="mdl-textfield__label" for="body">Content ...</label> + </div> + </div> + <div class="mdl-card__actions"> + <input class="mdl-button mdl-button--raised mdl-button--colored mdl-js-button mdl-js-ripple-effect" type="submit" value="Submit!"> + </div> + </form> + </div> + <div class="mdl-card mdl-shadow--2dp mdl-cell--4-col"> + <div class="mdl-card__title mdl-card--border"> + Quick Markdown primer: + </div> + <div class="mdl-card__supporting-text"> + <p> + Remember that you can use <a href="https://daringfireball.net/projects/markdown/basics"><strong>Markdown</strong></a> when + writing your posts: + </p> + <p><i>*italic text*</i></p> + <p><strong>**bold text**</strong></p> + <p><s>~strikethrough text~</s></p> + <p><code>[link text](https://some.link.com/)</code></p> + <p><code></code></p> + <p>Use <code>*</code> or <code>-</code> to enumerate lists.</p> + <p>See Markdown documentation for more information!</p> + </div> + </div> + </main> + <footer class="mdl-mini-footer"> + <div class="mdl-mini-footer--right-section"> + <p>Powered by <a href="https://code.tvl.fyi/about/web/converse">Converse</a></p> + </div> + </footer> + </div> + <script src="https://code.getmdl.io/1.3.0/material.min.js"></script> + </body> +</html> diff --git a/web/converse/templates/search.html b/web/converse/templates/search.html new file mode 100644 index 000000000000..418440e028ce --- /dev/null +++ b/web/converse/templates/search.html @@ -0,0 +1,67 @@ +<!doctype html> +<html lang="en"> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"> + <title>Converse: Search results</title> + + <!-- TODO --> + <meta http-equiv="Content-Security-Policy" content="script-src https://code.getmdl.io 'self';"> + <!-- <link rel="shortcut icon" href="images/favicon.png"> --> + + <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu"> + <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"> + <link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.blue_grey-orange.min.css" /> + <link rel="stylesheet" href="/static/styles.css"> + </head> + <body class="converse mdl-base mdl-color-text--grey-700 mdl-color--grey-100"> + <div class="mdl-layout mdl-layout--fixed-header mdl-js-layout mdl-color--grey-100"> + <header class="mdl-layout__header mdl-layout__header--scroll mdl-color--primary-dark"> + <div class="mdl-layout__header-row"> + <a href="/" class="mdl-layout-title mdl-color-text--blue-grey-50 cvs-title">Converse</a> + <div class="mdl-layout-spacer"></div> + <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label mdl-color-text--blue-grey-50 search-field"> + <form method="get" action="/search"> + <input class="mdl-textfield__input" type="search" id="search-query" aria-label="Search" name="query"> + <label class="mdl-textfield__label mdl-color-text--blue-grey-100" for="search-query">Search query...</label> + <input type="submit" hidden /> + </form> + </div> + + <a href="/"> + <button class="mdl-button mdl-js-button mdl-button--raised mdl-button--accent mdl-js-ripple-effect"> + Back to index + </button> + </a> + </div> + </header> + <main class="mdl-layout__content"> + <section class="section--center mdl-grid"> + <div class="mdl-cell--12-col"> + <h4>Search results for '{{ query }}':</h4> + </div> + {% for result in results %} + <div class="mdl-card mdl-cell--6-col search-result mdl-shadow--2dp"> + <div class="mdl-card__supporting-text"> + <p>Posted in '{{ result.title }}' by {{ result.author }}:</p> + <p>{{ result.headline|safe }}</p> + </div> + <div class="mdl-card__actions mdl-card--border post-actions"> + <div class="mdl-layout-spacer"></div> + <a class="mdl-button mdl-js-button mdl-button--fab mdl-button--mini-fab mdl-button--colored" href="/thread/{{ result.thread_id }}#post-{{ result.post_id }}"> + <i class="material-icons">arrow_forward</i> + </a> + </div> + </div> + {% endfor %} + </section> + </main> + <footer class="mdl-mini-footer"> + <div class="mdl-mini-footer--right-section"> + <p>Powered by <a href="https://code.tvl.fyi/about/web/converse">Converse</a></p> + </div> + </footer> + </div> + <script src="https://code.getmdl.io/1.3.0/material.min.js"></script> + </body> +</html> diff --git a/web/converse/templates/thread.html b/web/converse/templates/thread.html new file mode 100644 index 000000000000..66ec23de1f0a --- /dev/null +++ b/web/converse/templates/thread.html @@ -0,0 +1,111 @@ +<!doctype html> +<html lang="en"> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"> + <title>Converse: {{ title }}</title> + + <!-- TODO --> + <meta http-equiv="Content-Security-Policy" content="script-src https://code.getmdl.io 'self';"> + <!-- <link rel="shortcut icon" href="images/favicon.png"> --> + + <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu"> + <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu+Mono"> + <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"> + <link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.blue_grey-orange.min.css" /> + <link rel="stylesheet" href="/static/styles.css"> + <!-- Syntax highlighting for code --> + <link rel="stylesheet" href="/static/highlight.css"> + <style>img { max-width:100%; height:auto; }</style> + <script src="/static/highlight.js"></script> + </head> + <body class="converse mdl-base mdl-color-text--grey-700 mdl-color--grey-100"> + <div class="mdl-layout mdl-layout--fixed-header mdl-js-layout mdl-color--grey-100"> + <header class="mdl-layout__header mdl-color--primary-dark"> + <div class="mdl-layout__header-row"> + <a href="/" class="mdl-layout-title mdl-color-text--blue-grey-50 cvs-title">Converse: {{ title }}</a> + <div class="mdl-layout-spacer"></div> + <a href="/"> + <button class="mdl-button mdl-js-button mdl-button--raised mdl-button--accent mdl-js-ripple-effect"> + Back to index + </button> + </a> + </div> + </header> + <main class="mdl-layout__content"> + {% for post in posts -%} + <section id="post-{{ post.id }}" class="section--center mdl-grid mdl-grid--no-spacing"> + <!-- card to display avatars on desktop --> + <div class="mdl-card mdl-shadow--2dp mdl-cell--2-col mdl-cell--hide-phone mdl-cell--hide-tablet avatar-box"> + <div class="avatar-card"> + <img class="desktop-avatar" src="https://www.gravatar.com/avatar/{{ post.author_gravatar }}?d=monsterid&s=160" /> + <p class="user-name">{{ post.author_name }}</p> + </div> + </div> + <!-- card for main post content --> + <div class="mdl-card mdl-shadow--2dp post-box mdl-cell--10-col"> + <!-- card section for displaying user & post information on mobile --> + <div class="mdl-card__supporting-text mdl-card--border mdl-cell--hide-desktop mdl-color-text--blue-grey-500 mobile-user"> + <img class="mobile-avatar" src="https://www.gravatar.com/avatar/{{ post.author_gravatar }}?d=monsterid"/> + <span> {{ post.author_name }} posted on </span> + <a class="mdl-color-text--blue-grey-500 mobile-date" href="/thread/{{ id }}#post-{{ post.id }}">{{ post.posted }}</a> + </div> + <!-- card section to display post date on desktop --> + <div class="mdl-card__menu mdl-cell--hide-phone mdl-cell--hide-tablet"> + <a class="post-date mdl-color-text--blue-grey-500" href="/thread/{{ id }}#post-{{ post.id }}">{{ post.posted }}</a> + </div> + <!-- card section for actual post content --> + <div class="mdl-card__supporting-text post-box">{{ post.body|safe }}</div> + <!-- card section for post actions --> + <div class="mdl-card__actions post-actions"> + <div class="mdl-layout-spacer"></div> + + {% if post.editable %} + <a href="/post/{{ post.id }}/edit" class="mdl-button mdl-js-button mdl-button--accent" id="edit-post-{{ post.id }}" aria-label="Edit post"> + <i class="material-icons">edit</i> + <span class="mdl-tooltip mdl-tooltip--top" for="edit-post-{{ post.id }}">Edit post</span> + </a> + {% endif %} + <button class="mdl-button mdl-js-button mdl-button--accent" id="quote-post-{{ post.id }}" aria-label="Quote post" disabled> + <i class="material-icons">reply</i> + <span class="mdl-tooltip mdl-tooltip--top" for="quote-post-{{ post.id }}">Quote post</span> + </button> + </div> + </div> + </section> + {% endfor %} + + <!-- section for writing a response on the same page --> + <section id="post-reply" class="section--center mdl-grid mdl-grid--no-spacing reply-box"> + <div class="mdl-card mdl-shadow--2dp mdl-cell--12-col"> + {% if closed %} + <div class="mdl-card__supporting-text"> + This thread is <b>closed</b> and can no longer be responded to. + </div> + {% else %} + <form id="reply-form" action="/thread/reply" method="post"> + <input type="hidden" id="thread_id" name="thread_id" value="{{ id }}"> + + <div class="mdl-card__supporting-text"> + <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label mdl-cell--12-col"> + <textarea class="mdl-textfield__input" type="text" rows="8" id="post" name="post" aria-label="reply content"></textarea> + <label class="mdl-textfield__label" for="post">Write a reply</label> + </div> + <button class="mdl-button mdl-button--raised mdl-button--primary mdl-js-button mdl-js-ripple-effect" type="submit"> + Post! + </button> + </div> + </form> + {% endif %} + </div> + </section> + </main> + <footer class="mdl-mini-footer"> + <div class="mdl-mini-footer--right-section"> + <p>Powered by <a href="https://code.tvl.fyi/about/web/converse">Converse</a></p> + </div> + </footer> + </div> + <script src="https://code.getmdl.io/1.3.0/material.min.js"></script> + </body> +</html> diff --git a/web/converse/todo.org b/web/converse/todo.org new file mode 100644 index 000000000000..379f10753ae5 --- /dev/null +++ b/web/converse/todo.org @@ -0,0 +1,13 @@ +* DONE Pin *-versions in cargo.toml +* DONE Markdown support +* DONE Post ordering as expected +* DONE Stickies! +* DONE Search +* DONE Post editing +* TODO Configurable number of DB workers +* TODO Match certain types of Diesel errors (esp. for "not found") +* TODO Sketch out categories vs. tags system +* TODO Quote button +* TODO Multiquote buttons +* TODO Pagination +* TODO Multi-thread guest accounts diff --git a/web/inbox.nix b/web/inbox.nix new file mode 100644 index 000000000000..4bbf56300dc4 --- /dev/null +++ b/web/inbox.nix @@ -0,0 +1,81 @@ +# landing page for inbox.tvl.su + +{ depot, ... }: + +depot.web.tvl.template { + title = "TVL's public inbox"; + + # not hosted on whitby, so we need /latest + staticUrl = "https://static.tvl.su/latest"; + + extraHead = '' + <link rel="alternate" type="application/atom+xml" href="https://inbox.tvl.su/depot/new.atom" /> + ''; + + content = '' + TVL's public inbox + ================== + + This is the [public-inbox][] for [The Virus Lounge][TVL]. It is + essentially like a pull-based mailing list, where we discuss + anything related to our software or organisation, as well as + receive patches from external users. + + ## Posting to the inbox + + Anyone can send messages to the inbox by emailing + **depot@tvl.su**. + + ## Accessing the inbox + + There are several ways to access the inbox, depending on what is + most convenient for your personal email workflow. + + ### Web browser + + Go to [`/depot/`][inbox-html] to read the inbox in your web + browser. This is the easiest way to access messages, and with an + email client supporting `mailto:` links you can respond to + messages from there, too. + + ### IMAP + + The inbox is available via IMAP: + + **Server:** `inbox.tvl.su` + + **Port:** `993` (TLS enabled) + + **Inbox:** `su.tvl.depot.0` (auto-discoverable) + + You can use *any* credentials to log in, for example the username + `anonymous` with the password `kittens`. The server will just + ignore it. + + TIP: There is a wrapper script in `//tools/fetch-depot-inbox` in + the TVL depot which you can use to synchronise the maildir to your + computer, which works for email clients like `notmuch`. + + ### Atom feed + + An Atom feed [is available][feed] and should work with your + favourite feed reader. + + ### NNTP + + News readers can access the inbox via NNTP: + + **Server:** `inbox.tvl.su` + + **Port:** `563` (TLS enabled) + + **Group:** `su.tvl.depot.0` (auto-discoverable) + + No credentials are required to access the server. + + [public-inbox]: https://public-inbox.org/README.html + [TVL]: https://tvl.fyi + [inbox-html]: https://inbox.tvl.su/depot/ + [feed]: https://inbox.tvl.su/depot/new.atom + ''; +} diff --git a/web/panettone/.envrc b/web/panettone/.envrc new file mode 100644 index 000000000000..be81feddb1a5 --- /dev/null +++ b/web/panettone/.envrc @@ -0,0 +1 @@ +eval "$(lorri direnv)" \ No newline at end of file diff --git a/web/panettone/.gitignore b/web/panettone/.gitignore new file mode 100644 index 000000000000..be303db03207 --- /dev/null +++ b/web/panettone/.gitignore @@ -0,0 +1 @@ +*.fasl diff --git a/web/panettone/OWNERS b/web/panettone/OWNERS new file mode 100644 index 000000000000..5ad475b1c7e3 --- /dev/null +++ b/web/panettone/OWNERS @@ -0,0 +1,3 @@ +aspen +tazjin +sterni diff --git a/web/panettone/default.nix b/web/panettone/default.nix new file mode 100644 index 000000000000..283f83499487 --- /dev/null +++ b/web/panettone/default.nix @@ -0,0 +1,55 @@ +{ depot, ... }: + +depot.nix.buildLisp.program { + name = "panettone"; + + deps = with depot.third_party.lisp; [ + bordeaux-threads + cl-json + cl-ppcre + cl-smtp + cl-who + defclass-std + drakma + easy-routes + hunchentoot + lass + local-time + postmodern + + depot.lisp.klatre + ]; + + srcs = [ + ./panettone.asd + ./src/packages.lisp + ./src/util.lisp + ./src/css.lisp + ./src/email.lisp + ./src/inline-markdown.lisp + ./src/authentication.lisp + ./src/model.lisp + ./src/irc.lisp + ./src/panettone.lisp + ]; + + tests = { + deps = with depot.third_party.lisp; [ + fiveam + ]; + + srcs = [ + ./test/package.lisp + ./test/model_test.lisp + ./test/inline-markdown_test.lisp + ./test/util_test.lisp + ]; + + expression = "(fiveam:run!)"; + }; + + brokenOn = [ + "ecl" # dependencies use dynamic cffi + "ccl" # The value NIL is not of the expected type STRING. when loading model.lisp + ]; +} diff --git a/web/panettone/docker-compose.yml b/web/panettone/docker-compose.yml new file mode 100644 index 000000000000..84723667e6b9 --- /dev/null +++ b/web/panettone/docker-compose.yml @@ -0,0 +1,11 @@ +version: '3.4' +services: + postgres: + image: postgres:11 + restart: always + environment: + POSTGRES_USER: panettone + POSTGRES_PASSWORD: password + POSTGRES_DB: panettone + ports: + - 127.0.0.1:5432:5432 diff --git a/web/panettone/panettone.asd b/web/panettone/panettone.asd new file mode 100644 index 000000000000..4d44e50fd3e8 --- /dev/null +++ b/web/panettone/panettone.asd @@ -0,0 +1,6 @@ +(asdf:defsystem "panettone" + :description "A simple issue tracker" + :serial t + :components ((:file "packages") + (:file "css") + (:file "pannetone"))) diff --git a/web/panettone/shell.nix b/web/panettone/shell.nix new file mode 100644 index 000000000000..483481ca9aa1 --- /dev/null +++ b/web/panettone/shell.nix @@ -0,0 +1,15 @@ +{ depot ? import ../.. { } }: + +with depot.third_party.nixpkgs; + +mkShell { + buildInputs = [ + docker-compose + postgresql + ]; + + PGPASSWORD = "password"; + PGHOST = "localhost"; + PGUSER = "panettone"; + PGDATABASE = "panettone"; +} diff --git a/web/panettone/src/.gitignore b/web/panettone/src/.gitignore new file mode 100644 index 000000000000..10aa5440d832 --- /dev/null +++ b/web/panettone/src/.gitignore @@ -0,0 +1,2 @@ +# I use this as the out-link for my local lisp dev env +sbcl diff --git a/web/panettone/src/authentication.lisp b/web/panettone/src/authentication.lisp new file mode 100644 index 000000000000..3ce07aa8d78d --- /dev/null +++ b/web/panettone/src/authentication.lisp @@ -0,0 +1,115 @@ +(in-package :panettone.authentication) + +(defvar *user* nil + "The currently logged-in user") + +(defclass/std user () + ((cn dn mail displayname :type string))) + +;; Migrating user authentication to OAuth2 necessitates some temporary +;; workarounds while other parts of the panettone code are being +;; amended appropriately. + +(defun fake-dn (username) + "Users are no longer read directly from LDAP, but everything in +panettone is keyed on the DNs. This function constructs matching +'fake' DNs." + (format nil "cn=~A,ou=users,dc=tvl,dc=fyi" username)) + +(defun find-user-by-dn (dn) + "Previously this function looked up users in LDAP based on their DN, +however panettone now does not have direct access to a user database. + +For most cases only the username is needed, which can be parsed out of +the user, however email addresses are temporarily not available." + (let ((username + (car (uiop:split-string (subseq dn 3) :separator '(#\,))))) + (make-instance + 'user + :dn dn + :cn username + :displayname username + :mail nil))) + +;; Implementation of standard OAuth2 authorisation flow. + +(defvar *oauth2-auth-endpoint* nil) +(defvar *oauth2-token-endpoint* nil) +(defvar *oauth2-client-id* nil) +(defvar *oauth2-client-secret* nil) + +(defvar *oauth2-redirect-uri* + (or (uiop:getenv "OAUTH2_REDIRECT_URI") + "https://b.tvl.fyi/auth")) + +(defun initialise-oauth2 () + "Initialise all settings needed for OAuth2" + + (setq *oauth2-auth-endpoint* + (or (uiop:getenv "OAUTH2_AUTH_ENDPOINT") + "https://auth.tvl.fyi/auth/realms/TVL/protocol/openid-connect/auth")) + + (setq *oauth2-token-endpoint* + (or (uiop:getenv "OAUTH2_TOKEN_ENDPOINT") + "https://auth.tvl.fyi/auth/realms/TVL/protocol/openid-connect/token")) + + (setq *oauth2-client-id* + (or (uiop:getenv "OAUTH2_CLIENT_ID") + "panettone")) + + (setq *oauth2-client-secret* + (or (uiop:getenv "OAUTH2_CLIENT_SECRET") + (error "OAUTH2_CLIENT_SECRET must be set!")))) + +(defun auth-url () + (format nil "~A?response_type=code&client_id=~A&redirect_uri=~A" + *oauth2-auth-endpoint* + (drakma:url-encode *oauth2-client-id* :utf-8) + (drakma:url-encode *oauth2-redirect-uri* :utf-8))) + +(defun claims-to-user (claims) + (let ((username (cdr (assoc :preferred--username claims))) + (email (cdr (assoc :email claims)))) + (make-instance + 'user + :dn (fake-dn username) + :cn username + :mail email + ;; TODO(tazjin): Figure out actual displayName mapping in tokens. + :displayname username))) + +(defun fetch-token (code) + "Fetches the access token on completion of user authentication through +the OAuth2 endpoint and returns the resulting user object." + + (multiple-value-bind (body status) + (drakma:http-request *oauth2-token-endpoint* + :method :post + :parameters `(("grant_type" . "authorization_code") + ("client_id" . ,*oauth2-client-id*) + ("client_secret" . ,*oauth2-client-secret*) + ("redirect_uri" . ,*oauth2-redirect-uri*) + ("code" . ,code)) + :external-format-out :utf-8 + :want-stream t) + (if (/= status 200) + (error "Authentication failed: ~A (~A)~%" + (alexandria:read-stream-content-into-string body) + status) + + ;; Returned JWT contains username and email, we can populate + ;; all fields from that. + (progn + (setf (flexi-streams:flexi-stream-external-format body) :utf-8) + (let* ((response (cl-json:decode-json body)) + (access-token (cdr (assoc :access--token response))) + (payload (cadr (uiop:split-string access-token :separator '(#\.)))) + (claims (cl-json:decode-json-from-string + (base64:base64-string-to-string + ;; The JWT spec specifies that base64 strings + ;; embedded in jwts are *not* padded, but the common + ;; lisp base64 library doesn't know how to deal with + ;; that - we need to add those extra padding + ;; characters here. + (panettone.util:add-missing-base64-padding payload))))) + (claims-to-user claims)))))) diff --git a/web/panettone/src/css.lisp b/web/panettone/src/css.lisp new file mode 100644 index 000000000000..aa753cb50fc5 --- /dev/null +++ b/web/panettone/src/css.lisp @@ -0,0 +1,223 @@ +(in-package :panettone.css) +(declaim (optimize (safety 3))) + +(defun button (selector) + `((,selector + :background-color "var(--success)" + :padding "0.5rem" + :text-decoration "none" + :transition "box-shadow" "0.15s" "ease-in-out") + + ((:and ,selector :hover) + :box-shadow "0.25rem" "0.25rem" "0" "0" "rgba(0,0,0,0.08)") + + ((:and ,selector (:or :active :focus)) + :box-shadow "0.1rem" "0.1rem" "0" "0" "rgba(0,0,0,0.05)" + :outline "none" + :border "none"))) + +(defparameter markdown-styles + `((blockquote + :border-left "5px" "solid" "var(--light)"-gray + :padding-left "1rem" + :margin-left "0rem") + (pre + :overflow-x "auto"))) + +(defparameter issue-list-styles + `((.issue-list + :list-style-type "none" + :padding-left 0 + + (.issue-subject + :font-weight "bold") + + (li + :padding-bottom "1rem") + + ((li + li) + :border-top "1px" "solid" "var(--gray)") + + (a + :text-decoration "none" + :display "block") + + ((:and a :hover) + :outline "none" + + (.issue-subject + :color "var(--primary)"))) + + (.comment-count + :color "var(--gray)"))) + +(defparameter issue-history-styles + `((.issue-history + :list-style "none" + :border-top "1px" "solid" "var(--gray)" + :padding-top "1rem" + :padding-left "2rem" + + (.comment-info + :color "var(--gray)" + :margin 0 + :padding-top "1rem" + + (a :text-decoration "none") + ((:and a :hover) + :text-decoration "underline")) + + ((:or .comment .event) + :padding-top "1rem" + :padding-bottom "1rem" + :border-bottom "1px" "solid" "var(--gray)" + + (p :margin 0)) + + ((:and (:or .comment .event) :target) + :border-color "var(--primary)" + :border-bottom-width "3px") + + (.event + :color "var(--gray)")))) + +(defparameter form-styles + `(((:or (:and input (:or (:= type "text") + (:= type "password"))) + textarea) + :width "100%" + :padding "0.5rem" + :outline "none" + :border-top "none" + :border-left "none" + :border-right "none" + :border-bottom "1px" "solid" "var(--gray)" + :margin-bottom "1rem") + + (textarea + :resize "vertical") + + ((:and input (:= type "submit")) + :-webkit-appearance "none" + :border "none" + :cursor "pointer" + :font-size "1rem") + + ,@(button '(:and input (:= type "submit"))) + + (.form-link + ((:and input (:= type "submit")) + :background-color "initial" + :color "inherit" + :padding 0 + :text-decoration "underline") + + ((:and input (:= type "submit") + (:or :hover :active :focus)) + :box-shadow 0 0 0 0)) + + (.form-group + :margin-top "1rem") + + (label.checkbox + :cursor "pointer"))) + +(defparameter issue-styles + `((.issue-info + :display "flex" + :justify-content "space-between" + :align-items "center" + + ,@(button '.edit-issue) + + (.created-by-at + :flex 1) + + (.edit-issue + :background-color "var(--light)"-gray + :flex 0 + :margin-right "0.5rem") + + (.close-issue + :background-color "var(--failure)")))) + +(defparameter styles + `(,@form-styles + ,@issue-list-styles + ,@issue-styles + ,@issue-history-styles + ,@markdown-styles + + (body + :font-family "sans-serif" + :color "var(--text)" + :background "var(--bg)" + :--text "rgb(24, 24, 24)" + :--bg "white" + :--gray "#8D8D8D" + :--primary "rgb(106, 154, 255)" + :--primary-light "rgb(150, 166, 200)" + :--success "rgb(168, 249, 166)" + :--failure "rgb(247, 167, 167)" + :--light-gray "#EEE") + + (:media "(prefers-color-scheme: dark)" + (body + :--text "rgb(240, 240, 240)" + :--bg "black" + :--gray "#8D8D8D" + :--primary "rgb(106, 154, 255)" + :--primary-light "rgb(150, 166, 200)" + :--success "rgb(14, 130, 11)" + :--failure "rgb(124, 14, 14)" + :--light-gray "#222")) + + (a :color "inherit") + + (.content + :max-width "800px" + :margin "0 auto") + + (header + :display "flex" + :align-items "center" + :border-bottom "1px" "solid" "var(--text)" + :margin-bottom "1rem" + + (h1 + :padding 0 + :flex 1) + + (.issue-number + :color "var(--gray)" + :font-size "1.5rem")) + + (nav + :display "flex" + :color "var(--gray)" + :justify-content "space-between" + + (.nav-group + :display "flex" + (>* + :margin-left "0.5rem"))) + + (footer + :border-top "1px" "solid" "var(--gray)" + :padding-top "1rem" + :margin-top "1rem" + :color "var(--gray)") + + ,@(button '.new-issue) + + (.alert + :padding "0.5rem" + :margin-bottom "1rem" + :background-color "var(--failure)") + + (.login-form + :max-width "300px" + :margin "0 auto") + + (.created-by-at + :color "var(--gray)"))) diff --git a/web/panettone/src/email.lisp b/web/panettone/src/email.lisp new file mode 100644 index 000000000000..66ea299858d3 --- /dev/null +++ b/web/panettone/src/email.lisp @@ -0,0 +1,49 @@ +(in-package :panettone.email) +(declaim (optimize (safety 3))) + +(defvar *smtp-server* "localhost" + "The host for SMTP connections") + +(defvar *smtp-server-port* 2525 + "The port for SMTP connections") + +(defvar *notification-from* "tvlbot@tazj.in" + "The email address to send email notifications from") + +(defvar *notification-from-display-name* "Panettone" + "The Display Name to use when sending email notifications") + +(defvar *notification-subject-prefix* "[panettone]" + "String to prefix all email subjects with") + +(defun send-email-notification (&key to subject message) + "Sends an email to TO with the given SUBJECT and MESSAGE, using the current +values of `*smtp-server*', `*smtp-server-port*' and `*email-notification-from*'" + (let ((subject (if *notification-subject-prefix* + (format nil "~A ~A" + *notification-subject-prefix* + subject) + subject))) + (cl-smtp:send-email + *smtp-server* + *notification-from* + to + subject + message + :port *smtp-server-port* + :display-name *notification-from-display-name*))) + +(defun user-has-email-notifications-enabled-p (dn) + "Returns T if the user with the given DN has enabled email notifications" + (enable-email-notifications-p (settings-for-user dn))) + +(defun notify-user (dn &key subject message) + "Sends an email notification to the user with DN with the given SUBJECT and + MESSAGE, iff that user has not disabled email notifications" + (when (user-has-email-notifications-enabled-p dn) + (when-let* ((user (find-user-by-dn dn)) + (user-mail (mail user))) + (send-email-notification + :to user-mail + :subject subject + :message message)))) diff --git a/web/panettone/src/inline-markdown.lisp b/web/panettone/src/inline-markdown.lisp new file mode 100644 index 000000000000..e49293519bf4 --- /dev/null +++ b/web/panettone/src/inline-markdown.lisp @@ -0,0 +1,127 @@ +(in-package :panettone.inline-markdown) +(declaim (optimize (safety 3))) + +(define-constant +inline-markup-types+ + '(("~~" :del) + ("*" :em) + ("`" :code)) + :test #'equal) + +(defun next-token (mkdn &optional (escaped nil)) + "Parses and returns the next token from the beginning of + an inline markdown string which is not altered. The resulting + tokens are either :normal (normal text), :special (syntactically + significant) or :escaped (escaped using \\). If the string is + empty, a pseudo-token named :endofinput is returned. Return value + is a list where the first element is the token type, the second + the token content and optionally the third the markup type." + ; special tokens are syntactically significant characters + ; or strings for our inline markdown subset. “normal” tokens + ; the strings in between + (let* ((special-toks #.'(cons (list "\\" :escape) +inline-markup-types+)) + (toks (loop + for tok in special-toks + for pos = (search (car tok) mkdn) + when pos collect (cons tok pos))) + (next-tok + (unless (null toks) + (reduce (lambda (a b) (if (< (cdr a) (cdr b)) a b)) toks)))) + (cond + ; end of input + ((= (length mkdn) 0) (list :endofinput "")) + ; no special tokens, just return entire string + ((null next-tok) (list :normal mkdn)) + ; special token, but not at the beginning of the string + ; so we return everything until the special token as + ; a string + ((> (cdr next-tok) 0) (list :normal (subseq mkdn 0 (cdr next-tok)))) + ; \ at the beginning of the string: we get the next + ; token and mark it as escaped unless we are already + ; escaping in which case we just return the backslash + ; as a special token + ((eq (cadr (car next-tok)) :escape) + (if escaped + (list :special "\\") + (list :escaped + (next-token (subseq mkdn 1) t)))) + ; any other special token at the beginning of the string + ; here we also pass the markup type as a third list element + ; to prevent unnecessesary lookups + (t (list :special + (subseq mkdn 0 (length (car (car next-tok)))) + (cadr (car next-tok))))))) + +(defun token-length (tok-type tok-str) + "Returns the string length consumed by a call + to next-token returning the given token type and string." + (check-type tok-type symbol) + (if (eq tok-type :escaped) + ; backslash + length of escaped token + (progn + (check-type tok-str list) + (1+ (token-length (car tok-str) (cadr tok-str)))) + (progn + (check-type tok-str string) + (length tok-str)))) + +(defun write-tag (tag pos &optional (target *standard-output*)) + "Wrapper around who:convert-tag-to-string-list to + only output a single :opening or :closing tag." + (check-type tag symbol) + (check-type pos symbol) + (let + ((index + (cond + ((eq pos :opening) 0) + ((eq pos :closing) 3) + (t (error 'simple-type-error))))) + (dolist + (tag-part (subseq + (who:convert-tag-to-string-list tag nil nil nil) + index (+ index 3))) + (write-string tag-part target)))) + +(defun render-inline-markdown (s &optional (target *standard-output*) (in :normal)) + "Render inline markdown, a subset of markdown safe to render + inside inline elements. The resulting html is directly written + to a specified stream or *standard-output* to integrate well + with cl-who." + (check-type s string) + (check-type target stream) + (loop + for (tok-type tok-str tok-markup) = (next-token s) + do (setq s (subseq s (token-length tok-type tok-str))) + when (eq tok-type :endofinput) + return "" + when (eq tok-type :normal) + do (write-string (who:escape-string tok-str) target) + when (eq tok-type :escaped) + do (progn + ; if normal tokens are escaped we treat the \ as if it were \\ + ; + ; TODO(sterni): maybe also use the :normal behavior in :code except for #\`. + (when (eq (car tok-str) :normal) + (write-char #\\ target)) + (write-string (who:escape-string (cadr tok-str)) target)) + when (eq tok-type :special) + do (cond + ; we are on the outer level and encounter a special token: + ; render surrounding tags and call ourselves to render + ; inner content. + ((eq in :normal) + (progn + (write-tag tok-markup :opening target) + (setq s (render-inline-markdown s target tok-markup)) + (write-tag tok-markup :closing target))) + ; we are on the inner level and encounter the token that initiated + ; our markup again, meaning we need to return to the outer level. + ; we return the remaining string to be consumed. + ((eq in tok-markup) (return s)) + ; remaining case: we are on the inner level and encounter different markup. + + ; we don't support nested markup for simplicity reasons, so instead we + ; just render any nested markdown tokens as if they were escaped. This + ; only eliminates the slight use case for nesting :em inside :del, but + ; shouldn't be too bad. As a side effect this is the precise behavior + ; we want for :code. + (t (write-string (who:escape-string tok-str) target))))) diff --git a/web/panettone/src/irc.lisp b/web/panettone/src/irc.lisp new file mode 100644 index 000000000000..2ab72a2e391e --- /dev/null +++ b/web/panettone/src/irc.lisp @@ -0,0 +1,35 @@ +;;;; Using irccat to send IRC notifications + +(in-package :panettone.irc) + +(defun noping (s) + (format nil "~A~A~A" + (char s 0) + #\ZERO_WIDTH_SPACE + (subseq s 1))) + +(defun get-irccat-config () + "Reads the IRCCATHOST and IRCCATPORT environment variables, and returns them +as two values" + (destructuring-bind (host port) + (mapcar #'uiop:getenvp '("IRCCATHOST" "IRCCATPORT")) + (if (and host port) + (values host (parse-integer port)) + (values "localhost" 4722)))) + +(defun send-irc-notification (body &key channel) + "Sends BODY to the IRC channel CHANNEL (starting with #), +if an IRCCat server is configured (using the IRCCATHOST and IRCCATPORT +environment variables). +May signal a condition if sending fails." + (multiple-value-bind (irchost ircport) (get-irccat-config) + (when irchost + (let ((socket (socket-connect irchost ircport))) + (unwind-protect + (progn + (format (socket-stream socket) "~@[~A ~]~A~A~%" + channel + #\ZERO_WIDTH_SPACE + body) + (finish-output (socket-stream socket))) + (ignore-errors (socket-close socket))))))) diff --git a/web/panettone/src/model.lisp b/web/panettone/src/model.lisp new file mode 100644 index 000000000000..c54a0ae474bf --- /dev/null +++ b/web/panettone/src/model.lisp @@ -0,0 +1,420 @@ +(in-package :panettone.model) +(declaim (optimize (safety 3))) + +(defvar *pg-spec* nil + "Connection spec for use with the with-connection macro. Needs to be +initialised at launch time.") + +(defun make-pg-spec () + "Construct the Postgres connection spec from the environment." + (list (or (uiop:getenvp "PGDATABASE") "panettone") + (or (uiop:getenvp "PGUSER") "panettone") + (or (uiop:getenvp "PGPASSWORD") "password") + (or (uiop:getenvp "PGHOST") "localhost") + + :port (or (integer-env "PGPORT") 5432) + :application-name "panettone" + :pooled-p t)) + +(defun prepare-db-connections () + "Initialises the connection spec used for all Postgres connections." + (setq *pg-spec* (make-pg-spec))) + +;;; +;;; Schema +;;; + +(defclass user-settings () + ((user-dn :col-type string :initarg :user-dn :accessor user-dn) + (enable-email-notifications + :col-type boolean + :initarg :enable-email-notifications + :accessor enable-email-notifications-p + :initform t + :col-default t)) + (:metaclass dao-class) + (:keys user-dn) + (:table-name user_settings) + (:documentation + "Panettone settings for an individual user DN")) + +(deftable (user-settings "user_settings") + (!dao-def)) + +(defun settings-for-user (dn) + "Retrieve the settings for the user with the given DN, creating a new row in + the database if not yet present" + (or + (car + (query-dao + 'user-settings + (:select '* :from 'user-settings :where (:= 'user-dn dn)))) + (insert-dao (make-instance 'user-settings :user-dn dn)))) + +(defun update-user-settings (settings &rest attrs) + "Update the fields of the settings for USER with the given ATTRS, which is a + plist of slot and value" + (check-type settings user-settings) + (when-let ((set-fields + (iter + (for slot in '(enable-email-notifications)) + (for new-value = (getf attrs slot)) + (appending + (progn + (setf (slot-value settings slot) new-value) + (list slot new-value)))))) + (execute + (sql-compile + `(:update user-settings + :set ,@set-fields + :where (:= user-dn ,(user-dn settings))))))) + + +(define-constant +issue-statuses+ '(:open :closed) + :test #'equal) + +(deftype issue-status () + "Type specifier for the status of an `issue'" + (cons 'member +issue-statuses+)) + +(defun ddl/create-issue-status () + "Issue DDL to create the `issue-status' type, if it doesn't exist" + (unless (query (:select (:exists (:select 1 + :from 'pg_type + :where (:= 'typname "issue_status")))) + :single) + (query (sql-compile + `(:create-enum issue-status ,+issue-statuses+))))) + +(defclass has-created-at () + ((created-at :col-type timestamp + :col-default (local-time:now) + :initarg :created-at + :accessor created-at)) + (:metaclass dao-class)) + +(defun created-at->timestamp (object) + (assert (slot-exists-p object 'created-at)) + (unless (or (not (slot-boundp object 'created-at)) + (typep (slot-value object 'created-at) 'local-time:timestamp)) + (setf (slot-value object 'created-at) + (local-time:universal-to-timestamp (created-at object))))) + +(defmethod initialize-instance :after + ((obj has-created-at) &rest initargs &key &allow-other-keys) + (declare (ignore initargs)) + (created-at->timestamp obj)) + +(defun keyword->str (kw) (string-downcase (symbol-name kw))) +(defun str->keyword (st) (alexandria:make-keyword (string-upcase st))) + +(defclass issue (has-created-at) + ((id :col-type serial :initarg :id :accessor id) + (subject :col-type string :initarg :subject :accessor subject) + (body :col-type string :initarg :body :accessor body :col-default "") + (author-dn :col-type string :initarg :author-dn :accessor author-dn) + (comments :type list :accessor issue-comments) + (events :type list :accessor issue-events) + (num-comments :type integer :accessor num-comments) + (status :col-type issue_status + :initarg :status + :accessor status + :initform :open + :col-default "open" + :col-export keyword->str + :col-import str->keyword)) + (:metaclass dao-class) + (:keys id) + (:table-name issues) + (:documentation + "Issues are the primary entity in the Panettone database. An issue is + reported by a user, has a subject and an optional body, and can be either + open or closed")) + +(defmethod cl-postgres:to-sql-string ((kw (eql :open))) + (cl-postgres:to-sql-string "open")) +(defmethod cl-postgres:to-sql-string ((kw (eql :closed))) + (cl-postgres:to-sql-string "closed")) +(defmethod cl-postgres:to-sql-string ((ts local-time:timestamp)) + (cl-postgres:to-sql-string + (local-time:timestamp-to-unix ts))) + +(defmethod initialize-instance :after + ((issue issue) &rest initargs &key &allow-other-keys) + (declare (ignore initargs)) + (unless (symbolp (status issue)) + (setf (status issue) + (intern (string-upcase (status issue)) + "KEYWORD")))) + +(deftable issue (!dao-def)) + +(defclass issue-comment (has-created-at) + ((id :col-type integer :col-identity t :initarg :id :accessor id) + (body :col-type string :initarg :body :accessor body) + (author-dn :col-type string :initarg :author-dn :accessor author-dn) + (issue-id :col-type integer :initarg :issue-id :accessor :user-id)) + (:metaclass dao-class) + (:keys id) + (:table-name issue_comments) + (:documentation "Comments on an `issue'")) +(deftable (issue-comment "issue_comments") + (!dao-def) + (!foreign 'issues 'issue-id 'id :on-delete :cascade :on-update :cascade)) + +(defclass issue-event (has-created-at) + ((id :col-type integer :col-identity t :initarg :id :accessor id) + (issue-id :col-type integer + :initarg :issue-id + :accessor issue-id) + (acting-user-dn :col-type string + :initarg :acting-user-dn + :accessor acting-user-dn) + (field :col-type (or string db-null) + :initarg :field + :accessor field) + (previous-value :col-type (or string db-null) + :initarg :previous-value + :accessor previous-value) + (new-value :col-type (or string db-null) + :initarg :new-value + :accessor new-value)) + (:metaclass dao-class) + (:keys id) + (:table-name issue_events) + (:documentation "Events that have occurred for an issue. + +If a field has been changed on an issue, the SYMBOL-NAME of that slot will be in +FIELD, its previous value will be formatted using ~A into PREVIOUS-VALUE, and +its new value will be formatted using ~A into NEW-VALUE")) + +(deftable (issue-event "issue_events") + (!dao-def) + (!foreign 'issues 'issue-id 'id :on-delete :cascade :on-update :cascade)) + +(define-constant +all-tables+ + '(issue + issue-comment + issue-event + user-settings) + :test #'equal) + +(defun ddl/create-tables () + "Issue DDL to create all tables, if they don't already exist." + (dolist (table +all-tables+) + (unless (table-exists-p (dao-table-name table)) + (create-table table)))) + +(defun ddl/init () + "Idempotently initialize the full database schema for Panettone" + (ddl/create-issue-status) + (ddl/create-tables)) + +;;; +;;; Querying +;;; + +(define-condition issue-not-found (error) + ((id :type integer + :initarg :id + :reader not-found-id + :documentation "ID of the issue that was not found")) + (:documentation + "Error condition for when an issue requested by ID is not found")) + +(defun get-issue (id) + "Look up the 'issue with the given ID and return it, or signal a condition of +type `ISSUE-NOT-FOUND'." + (restart-case + (or (get-dao 'issue id) + (error 'issue-not-found :id id)) + (different-id (new-id) + :report "Use a different issue ID" + :interactive (lambda () + (format t "Enter a new ID: ") + (multiple-value-list (eval (read)))) + (get-issue new-id)))) + +(defun issue-exists-p (id) + "Returns `T' if an issue with the given ID exists" + (query + (:select (:exists (:select 1 + :from 'issues + :where (:= 'id id)))) + :single)) + +(defun list-issues (&key status (with '(:num-comments))) + "Return a list of all issues with the given STATUS (or all if nil), ordered by + ID descending. If WITH contains `:NUM-COMMENTS' (the default) each issue will + have the `num-comments' slot filled with the number of comments on that issue + (to avoid N+1 queries)." + (let* ((condition (unless (null status) + `(:where (:= status $1)))) + (select (if (find :num-comments with) + `(:select issues.* (:as (:count issue-comments.id) + num-comments) + :from issues + :left-join issue-comments + :on (:= issues.id issue-comments.issue-id) + ,@condition + :group-by issues.id) + `(:select * :from issues ,@condition))) + (query (sql-compile + `(:order-by ,select (:desc id))))) + (with-column-writers ('num_comments 'num-comments) + (query-dao 'issue query status)))) + +(defmethod count-comments ((issue-id integer)) + "Return the number of comments for the given ISSUE-ID." + (query + (:select (:count '*) + :from 'issue-comments + :where (:= 'issue-id issue-id)) + :single)) + +(defmethod slot-unbound (cls (issue issue) (slot (eql 'comments))) + (declare (ignore cls) (ignore slot)) + (setf (issue-comments issue) (issue-comments (id issue)))) + +(defmethod issue-comments ((issue-id integer)) + "Return a list of all comments with the given ISSUE-ID, sorted oldest first. +NOTE: This makes a database query, so be wary of N+1 queries" + (query-dao + 'issue-comment + (:order-by + (:select '* + :from 'issue-comments + :where (:= 'issue-id issue-id)) + (:asc 'created-at)))) + +(defmethod slot-unbound (cls (issue issue) (slot (eql 'events))) + (declare (ignore cls) (ignore slot)) + (setf (issue-events issue) (issue-events (id issue)))) + +(defmethod issue-events ((issue-id integer)) + "Return a list of all events with the given ISSUE-ID, sorted oldest first. +NOTE: This makes a database query, so be wary of N+1 queries" + (query-dao + 'issue-event + (:order-by + (:select '* + :from 'issue-events + :where (:= 'issue-id issue-id)) + (:asc 'created-at)))) + +;;; +;;; Writing +;;; + +(defun record-issue-event + (issue-id &key + field + previous-value + new-value) + "Record in the database that the user identified by `AUTHN:*USER*' updated +ISSUE-ID, and return the resulting `ISSUE-EVENT'. If no user is currently +authenticated, warn and no-op" + (check-type issue-id (integer)) + (check-type field (or null symbol)) + (if authn:*user* + (insert-dao + (make-instance 'issue-event + :issue-id issue-id + :acting-user-dn (authn:dn authn:*user*) + :field (symbol-name field) + :previous-value (when previous-value + (format nil "~A" previous-value)) + :new-value (when new-value + (format nil "~A" new-value)))) + (warn "Performing operation as unauthenticated user"))) + +(defun create-issue (&rest attrs) + "Insert a new issue into the database with the given ATTRS, which should be +a plist of initforms, and return an instance of `issue'" + (insert-dao (apply #'make-instance 'issue attrs))) + +(defun delete-issue (issue) + (delete-dao issue)) + +(defun set-issue-status (issue-id status) + "Set the status of the issue with the given ISSUE-ID to STATUS in the db. If +the issue doesn't exist, signals `issue-not-found'" + (check-type issue-id integer) + (check-type status issue-status) + (let ((original-status (query (:select 'status + :from 'issues + :where (:= 'id issue-id)) + :single))) + (when (zerop (execute (:update 'issues + :set 'status (cl-postgres:to-sql-string status) + :where (:= 'id issue-id)))) + (error 'issue-not-found :id issue-id)) + (record-issue-event + issue-id + :field 'status + :previous-value (string-upcase original-status) + :new-value status) + (values))) + +(defun update-issue (issue &rest attrs) + "Update the fields of ISSUE with the given ATTRS, which is a plist of slot and +value, and record events for the updates" + (let ((set-fields + (iter (for slot in '(subject body)) + (for new-value = (getf attrs slot)) + (appending + (let ((previous-value (slot-value issue slot))) + (when (and new-value (not (equalp + new-value + previous-value))) + (record-issue-event (id issue) + :field slot + :previous-value previous-value + :new-value new-value) + (setf (slot-value issue slot) new-value) + (list slot new-value))))))) + (execute + (sql-compile + `(:update issues + :set ,@set-fields + :where (:= id ,(id issue))))))) + +(defun create-issue-comment (&rest attrs &key issue-id &allow-other-keys) + "Insert a new issue comment into the database with the given ATTRS and +ISSUE-ID, which should be a plist of initforms, and return an instance of +`issue-comment'. If no issue exists with `ID' ISSUE-ID, signals +`issue-not-found'." + (unless (issue-exists-p issue-id) + (error 'issue-not-found :id issue-id)) + (insert-dao (apply #'make-instance 'issue-comment :issue-id issue-id attrs))) + +(defun issue-commenter-dns (issue-id) + "Returns a list of all the dns of users who have commented on ISSUE-ID" + (query (:select 'author-dn :distinct + :from 'issue-comments + :where (:= 'issue-id issue-id)) + :column)) + +(defun issue-subscribers (issue-id) + "Returns a list of user DNs who should receive notifications for actions taken + on ISSUE-ID. + +Currently this is implemented as the author of issue plus all the users who have +commented on the issue, but in the future we likely want to also allow +explicitly subscribing to / unsubscribing from individual issues." + (let ((issue (get-issue issue-id))) + (adjoin (author-dn issue) + (issue-commenter-dns issue-id) + :test #'equal))) + + +(comment + (ddl/init) + (make-instance 'issue :subject "test") + (create-issue :subject "test" + :author-dn "cn=grfn,ou=users,dc=tvl,dc=fyi") + + (issue-commenter-dns 1) + (issue-subscribers 1) + + ) diff --git a/web/panettone/src/packages.lisp b/web/panettone/src/packages.lisp new file mode 100644 index 000000000000..4ff4c070f087 --- /dev/null +++ b/web/panettone/src/packages.lisp @@ -0,0 +1,87 @@ +(defpackage panettone.util + (:use :cl :klatre) + (:import-from :alexandria :when-let) + (:export :integer-env :add-missing-base64-padding)) + +(defpackage panettone.css + (:use :cl :lass) + (:export :styles)) + +(defpackage panettone.inline-markdown + (:use :cl) + (:import-from :alexandria :define-constant) + (:export :render-inline-markdown)) + +(defpackage panettone.irc + (:nicknames :irc) + (:use :cl :usocket) + (:export :noping :send-irc-notification)) + +(defpackage :panettone.authentication + (:nicknames :authn) + (:use :cl :panettone.util :klatre) + (:import-from :defclass-std :defclass/std) + (:import-from :alexandria :when-let :with-gensyms) + (:export + :*user* + :auth-url + :fetch-token + :user :cn :dn :mail :displayname + :find-user-by-dn + :initialise-oauth2)) + +(defpackage panettone.model + (:nicknames :model) + (:use :cl :panettone.util :klatre :postmodern :iterate) + (:import-from :alexandria :if-let :when-let :define-constant) + (:export + :prepare-db-connections + :ddl/init + :*pg-spec* + + :user-settings + :user-dn :enable-email-notifications-p :settings-for-user + :update-user-settings :enable-email-notifications + + :issue :issue-comment :issue-event + :id :subject :body :author-dn :issue-id :status :created-at :acting-user-dn + :field :previous-value :new-value + + :get-issue :issue-exists-p :list-issues :create-issue :set-issue-status + :update-issue :delete-issue :issue-not-found :not-found-id + + :issue-events + + :issue-comments :num-comments :create-issue-comment + :issue-commenter-dns :issue-subscribers)) + +(defpackage panettone.email + (:nicknames :email) + (:use :cl) + (:import-from :alexandria :when-let :when-let*) + (:import-from :panettone.model + :settings-for-user :enable-email-notifications-p) + (:import-from :panettone.authentication + :find-user-by-dn :mail :displayname) + (:export + :*smtp-server* :*smtp-server-port* :*notification-from* + :*notification-from-display-name* :*notification-subject-prefix* + :notify-user :send-email-notification)) + +(defpackage panettone + (:use :cl :klatre :easy-routes :iterate + :panettone.util + :panettone.authentication + :panettone.inline-markdown) + (:import-from :defclass-std :defclass/std) + (:import-from :alexandria :if-let :when-let :switch :alist-hash-table) + (:import-from :cl-ppcre :split) + (:import-from :bordeaux-threads :make-thread) + (:import-from + :panettone.model + :id :subject :body :author-dn :issue-id :status :created-at + :field :previous-value :new-value :acting-user-dn + :*pg-spec*) + (:import-from :panettone.irc :send-irc-notification) + (:shadow :next) + (:export :start-panettone :config :main)) diff --git a/web/panettone/src/panettone.lisp b/web/panettone/src/panettone.lisp new file mode 100644 index 000000000000..d87ac5ed4653 --- /dev/null +++ b/web/panettone/src/panettone.lisp @@ -0,0 +1,650 @@ +(in-package :panettone) +(declaim (optimize (safety 3))) + +(defvar *cheddar-url* "http://localhost:4238") + +(defgeneric render-markdown (markdown) + (:documentation + "Render the argument, or the elements of the argument, as markdown, and return + the same structure")) + +(defun request-markdown-from-cheddar (input) + "Send the CL value INPUT encoded as JSON to cheddar's + markdown endpoint and return the decoded response." + (let ((s (drakma:http-request + (concatenate 'string + *cheddar-url* + "/markdown") + :accept "application/json" + :method :post + :content-type "application/json" + :external-format-out :utf-8 + :content (json:encode-json-to-string input) + :want-stream t))) + (setf (flexi-streams:flexi-stream-external-format s) :utf-8) + (cl-json:decode-json s))) + +(defmethod render-markdown ((markdown string)) + (cdr (assoc :markdown + (request-markdown-from-cheddar + `((markdown . ,markdown)))))) + +(defmethod render-markdown ((markdown hash-table)) + (alist-hash-table + (request-markdown-from-cheddar markdown))) + +(defun markdownify-comment-bodies (comments) + "Convert the bodies of the given list of comments to markdown in-place using + Cheddar, and return nothing" + (let ((in (make-hash-table)) + (comment-table (make-hash-table))) + (dolist (comment comments) + (when (typep comment 'model:issue-comment) + (setf (gethash (id comment) in) (body comment)) + (setf (gethash (id comment) comment-table) comment))) + (let ((res (render-markdown in))) + (iter (for (comment-id markdown-body) in-hashtable res) + (let ((comment-id (parse-integer (symbol-name comment-id)))) + (setf (slot-value (gethash comment-id comment-table) + 'model:body) + markdown-body))))) + (values)) + +;;; +;;; Views +;;; + +(defvar *title* "Panettone") + +(eval-when (:compile-toplevel :load-toplevel) + (setf (who:html-mode) :html5)) + +(defun render/nav () + (who:with-html-output (*standard-output*) + (:nav + (if (find (car (split "\\?" (hunchentoot:request-uri*) :limit 2)) + (list "/" "/issues/closed") + :test #'string=) + (who:htm (:span :class "placeholder")) + (who:htm (:a :href "/" "All Issues"))) + (if *user* + (who:htm + (:div :class "nav-group" + (:a :href "/settings" "Settings") + (:form :class "form-link log-out" + :method "post" + :action "/logout" + (:input :type "submit" :value "Log Out")))) + (who:htm + (:a :href + (format nil + "/auth?original-uri=~A" + (drakma:url-encode (hunchentoot:request-uri*) + :utf-8)) + "Log In")))))) + +(defun author (object) + (find-user-by-dn (author-dn object))) + +(defun displayname-if-known (user) + (or (when user (displayname user)) + "unknown")) + +(defmacro render ((&key + (footer t) + (header t)) + &body body) + `(who:with-html-output-to-string (*standard-output* nil :prologue t) + (:html + :lang "en" + (:head + (:title (who:esc *title*)) + (:link :rel "stylesheet" :type "text/css" :href "/main.css") + (:meta :name "viewport" + :content "width=device-width,initial-scale=1")) + (:body + (:div + :class "content" + (when ,header + (who:htm + (render/nav))) + ,@body + (when ,footer + (who:htm + (:footer + (render/nav))))))))) + +(defun form-button (&key + class + input-class + href + label + (method "post")) + (who:with-html-output (*standard-output*) + (:form :class class + :method method + :action href + (:input :type "submit" + :class input-class + :value label)))) + +(defun render/alert (message) + "Render an alert box for MESSAGE, if non-null" + (check-type message (or null string)) + (who:with-html-output (*standard-output*) + (when message + (who:htm (:div :class "alert" (who:esc message)))))) + +(defun render/settings () + (let ((settings (model:settings-for-user (dn *user*)))) + (render () + (:div + :class "settings-page" + (:header + (:h1 "Settings")) + (:form + :method :post :action "/settings" + (:div + (:label :class "checkbox" + (:input :type "checkbox" + :name "enable-email-notifications" + :id "enable-email-notifications" + :checked (model:enable-email-notifications-p + settings)) + "Enable Email Notifications")) + (:div :class "form-group" + (:input :type "submit" + :value "Save Settings"))))))) + +(defun created-by-at (issue) + (check-type issue model:issue) + (who:with-html-output (*standard-output*) + (:span :class "created-by-at" + "Opened by " + (:span :class "username" + (who:esc (displayname-if-known + (author issue)))) + " at " + (:span :class "timestamp" + (who:esc + (format-dottime (created-at issue))))))) + +(defun render/issue-list (&key issues) + (who:with-html-output (*standard-output*) + (:ol + :class "issue-list" + (dolist (issue issues) + (let ((issue-id (model:id issue))) + (who:htm + (:li + (:a :href (format nil "/issues/~A" issue-id) + (:p + (:span :class "issue-subject" + (render-inline-markdown (subject issue)))) + (:span :class "issue-number" + (who:esc (format nil "#~A" issue-id))) + " - " + (created-by-at issue) + (let ((num-comments (length (model:issue-comments issue)))) + (unless (zerop num-comments) + (who:htm + (:span :class "comment-count" + " - " + (who:esc + (format nil "~A comment~:p" num-comments)))))))))))))) + +(defun render/index (&key issues) + (render () + (:header + (:h1 "Issues") + (when *user* + (who:htm + (:a + :class "new-issue" + :href "/issues/new" "New Issue")))) + (:main + (:div + :class "issue-links" + (:a :href "/issues/closed" "View closed issues")) + (render/issue-list :issues issues)))) + +(defun render/closed-issues (&key issues) + (render () + (:header + (:h1 "Closed issues")) + (:main + (:div + :class "issue-links" + (:a :href "/" "View open isues")) + (render/issue-list :issues issues)))) + +(defun render/issue-form (&optional issue message) + (let ((editing (and issue (id issue)))) + (render () + (:header + (:h1 + (who:esc + (if editing "Edit Issue" "New Issue")))) + (:main + (render/alert message) + (:form :method "post" + :action (if editing + (format nil "/issues/~A" + (id issue)) + "/issues") + :class "issue-form" + (:div + (:input :type "text" + :id "subject" + :name "subject" + :placeholder "Subject" + :value (when editing + (who:escape-string + (subject issue))))) + + (:div + (:textarea :name "body" + :placeholder "Description" + :rows 10 + (who:esc + (when editing + (body issue))))) + + (:input :type "submit" + :value + (if editing + "Save Issue" + "Create Issue"))))))) + +(defun render/new-comment (issue-id) + (who:with-html-output (*standard-output*) + (:form + :class "new-comment" + :method "post" + :action (format nil "/issues/~A/comments" issue-id) + (:div + (:textarea :name "body" + :placeholder "Leave a comment" + :rows 5)) + (:input :type "submit" + :value "Comment")))) + +(defgeneric render/issue-history-item (item)) + +(defmethod render/issue-history-item ((comment model:issue-comment)) + (let ((fragment (format nil "comment-~A" (id comment)))) + (who:with-html-output (*standard-output*) + (:li + :class "comment" + :id fragment + (:p (who:str (body comment))) + (:p + :class "comment-info" + (:span :class "username" + (who:esc + (displayname-if-known (author comment))) + " at " + (:a :href (concatenate 'string "#" fragment) + (who:esc (format-dottime (created-at comment)))))))))) + +(defmethod render/issue-history-item ((event model:issue-event)) + (let ((user (find-user-by-dn (acting-user-dn event))) + (fragment (format nil "event-~A" (id event)))) + (who:with-html-output (*standard-output*) + (:li + :class "event" + :id fragment + (who:esc (displayname-if-known user)) + (switch ((field event) :test #'string=) + ("STATUS" + (who:htm + (who:esc + (switch ((new-value event) :test #'string=) + ("OPEN" " reopened ") + ("CLOSED" " closed "))) + " this issue ")) + ("BODY" (who:htm " updated the body of this issue")) + (t + (who:htm + " changed the " + (who:esc (string-downcase (field event))) + " of this issue from \"" + (who:esc (previous-value event)) + "\" to \"" + (who:esc (new-value event)) + "\""))) + " at " + (who:esc (format-dottime (created-at event))))))) + +(defun render/issue (issue) + (check-type issue model:issue) + (let ((issue-id (id issue)) + (issue-status (status issue))) + (render () + (:header + (:h1 (render-inline-markdown (subject issue))) + (:div :class "issue-number" + (who:esc (format nil "#~A" issue-id)))) + (:main + (:div + :class "issue-info" + (created-by-at issue) + + (when *user* + (who:htm + (when (string= (author-dn issue) + (dn *user*)) + (who:htm + (:a :class "edit-issue" + :href (format nil "/issues/~A/edit" + issue-id) + "Edit"))) + (form-button + :class "set-issue-status" + :href (format nil "/issues/~A/~A" + issue-id + (case issue-status + (:open "close") + (:closed "open"))) + :input-class (case issue-status + (:open "close-issue") + (:closed "open-issue")) + :label (case issue-status + (:open "Close") + (:closed "Reopen")))))) + (:p (who:str (render-markdown (body issue)))) + (let* ((comments (model:issue-comments issue)) + (events (model:issue-events issue)) + (history (merge 'list + comments + events + #'local-time:timestamp< + :key #'created-at))) + (markdownify-comment-bodies comments) + (when (or history *user*) + (who:htm + (:ol + :class "issue-history" + (dolist (item history) + (render/issue-history-item item)) + (when *user* + (render/new-comment (id issue))))))))))) + +(defun render/not-found (entity-type) + (render () + (:h1 (who:esc entity-type) " Not Found"))) + +;;; +;;; HTTP handlers +;;; + +(defun send-email-for-issue + (issue-id &key subject (message "")) + "Send an email notification to all subscribers to the given issue with the +given subject an body (in a thread, to avoid blocking)" + (let ((current-user *user*)) + (bordeaux-threads:make-thread + (lambda () + (pomo:with-connection *pg-spec* + (dolist (user-dn (model:issue-subscribers issue-id)) + (when (not (equal (dn current-user) user-dn)) + (email:notify-user + user-dn + :subject subject + :message message)))))))) + +(defun link-to-issue (issue-id) + (format nil "https://b.tvl.fyi/issues/~A" issue-id)) + +(defun @auth-optional (next) + (let ((*user* (hunchentoot:session-value 'user))) + (funcall next))) + +(defun @auth (next) + (if-let ((*user* (hunchentoot:session-value 'user))) + (funcall next) + (hunchentoot:redirect + (format nil "/auth?original-uri=~A" + (drakma:url-encode + (hunchentoot:request-uri*) + :utf-8))))) + +(defun @db (next) + "Decorator for handlers that use the database, wrapped in a transaction." + (pomo:with-connection *pg-spec* + (pomo:with-transaction () + (catch + ;; 'hunchentoot:handler-done is unexported, but is used by functions + ;; like hunchentoot:redirect to nonlocally abort the request handler - + ;; this doesn't mean an error occurred, so we need to catch it here to + ;; make the transaction still get committed + (intern "HANDLER-DONE" "HUNCHENTOOT") + (funcall next))))) + +(defun @handle-issue-not-found (next) + (handler-case (funcall next) + (model:issue-not-found (err) + (render/not-found + (format nil "Issue #~A" (model:not-found-id err)))))) + +(defroute auth-handler ("/auth" :method :get :decorators (@auth-optional)) () + (if-let ((code (hunchentoot:get-parameter "code"))) + (let ((user (fetch-token code))) + (setf (hunchentoot:session-value 'user) user) + (hunchentoot:redirect (or (hunchentoot:session-value 'original-uri) "/"))) + + (progn + (when-let ((original-uri (hunchentoot:get-parameter "original-uri"))) + (setf (hunchentoot:session-value 'original-uri) original-uri)) + (hunchentoot:redirect (authn:auth-url))))) + +(defroute logout ("/logout" :method :post) () + (hunchentoot:delete-session-value 'user) + (hunchentoot:redirect "/")) + +(defroute index ("/" :decorators (@auth-optional @db)) () + (let ((issues (model:list-issues :status :open))) + (render/index :issues issues))) + +(defroute settings ("/settings" :method :get :decorators (@auth @db)) () + (render/settings)) + +(defroute save-settings ("/settings" :method :post :decorators (@auth @db)) + (&post enable-email-notifications) + (let ((settings (model:settings-for-user (dn *user*)))) + (model:update-user-settings + settings + 'model:enable-email-notifications enable-email-notifications) + (render/settings))) + +(defroute handle-closed-issues + ("/issues/closed" :decorators (@auth-optional @db)) () + (let ((issues (model:list-issues :status :closed))) + (render/closed-issues :issues issues))) + +(defroute new-issue ("/issues/new" :decorators (@auth)) () + (render/issue-form)) + +(defroute handle-create-issue + ("/issues" :method :post :decorators (@auth @db)) + (&post subject body) + (if (string= subject "") + (render/issue-form + (make-instance 'model:issue :subject subject :body body) + "Subject is required") + (let ((issue + (model:create-issue :subject subject + :body body + :author-dn (dn *user*)))) + (send-irc-notification + (format nil + "b/~A: \"~A\" opened by ~A - https://b.tvl.fyi/issues/~A" + (id issue) + subject + (irc:noping (cn *user*)) + (id issue)) + :channel (or (uiop:getenvp "ISSUECHANNEL") + "#tvl")) + (hunchentoot:redirect + (format nil "/issues/~A" (id issue)))))) + +(defroute show-issue + ("/issues/:id" :decorators (@auth-optional @handle-issue-not-found @db)) + (&path (id 'integer)) + (let* ((issue (model:get-issue id)) + (*title* (format nil "~A | Panettone" + (subject issue)))) + (render/issue issue))) + +(defroute edit-issue + ("/issues/:id/edit" :decorators (@auth @handle-issue-not-found @db)) + (&path (id 'integer)) + (let* ((issue (model:get-issue id)) + (*title* "Edit Issue | Panettone")) + (render/issue-form issue))) + +(defroute update-issue + ("/issues/:id" :decorators (@auth @handle-issue-not-found @db) + ;; NOTE: this should be a put, but we're all HTML forms + ;; right now and those don't support PUT + :method :post) + (&path (id 'integer) &post subject body) + (let ((issue (model:get-issue id))) + ;; only the original author can edit an issue + (if (string-equal (author-dn issue) + (dn *user*)) + (progn + (model:update-issue issue + 'model:subject subject + 'model:body body) + (hunchentoot:redirect (format nil "/issues/~A" id))) + (render/not-found "Issue")))) + +(defroute handle-create-comment + ("/issues/:id/comments" + :decorators (@auth @handle-issue-not-found @db) + :method :post) + (&path (id 'integer) &post body) + (flet ((redirect-to-issue () + (hunchentoot:redirect (format nil "/issues/~A" id)))) + (cond + ((string= body "") + (redirect-to-issue)) + (:else + (model:create-issue-comment + :issue-id id + :body body + :author-dn (dn *user*)) + + (let ((issue (model:get-issue id))) + (send-email-for-issue + id + :subject (format nil "~A commented on b/~A: \"~A\"" + (displayname *user*) + id + (subject issue)) + :message (format nil "~A~%~%~A" + body + (link-to-issue id)))) + (redirect-to-issue))))) + +(defroute close-issue + ("/issues/:id/close" :decorators (@auth @handle-issue-not-found @db) + :method :post) + (&path (id 'integer)) + (model:set-issue-status id :closed) + (let ((issue (model:get-issue id))) + (send-irc-notification + (format nil + "b/~A: \"~A\" closed by ~A - ~A" + id + (subject issue) + (irc:noping (cn *user*)) + (link-to-issue id)) + :channel (or (uiop:getenvp "ISSUECHANNEL") + "#tvl")) + (send-email-for-issue + id + :subject (format nil "b/~A: \"~A\" closed by ~A" + id + (subject issue) + (displayname *user*)) + :message (link-to-issue id))) + (hunchentoot:redirect (format nil "/issues/~A" id))) + +(defroute open-issue + ("/issues/:id/open" :decorators (@auth @db) + :method :post) + (&path (id 'integer)) + (model:set-issue-status id :open) + (let ((issue (model:get-issue id))) + (send-irc-notification + (format nil + "b/~A: \"~A\" reopened by ~A - ~A" + id + (subject issue) + (irc:noping (cn *user*)) + (link-to-issue id)) + :channel (or (uiop:getenvp "ISSUECHANNEL") + "#tvl")) + (send-email-for-issue + id + :subject (format nil "b/~A: \"~A\" reopened by ~A" + id + (subject issue) + (displayname *user*)) + :message (link-to-issue id))) + (hunchentoot:redirect (format nil "/issues/~A" id))) + +(defroute styles ("/main.css") () + (setf (hunchentoot:content-type*) "text/css") + (apply #'lass:compile-and-write panettone.css:styles)) + +(defvar *acceptor* nil + "Hunchentoot acceptor for Panettone's web server.") + +(defun migrate-db () + "Migrate the database to the latest version of the schema" + (pomo:with-connection *pg-spec* + (model:ddl/init))) + +(defun start-panettone (&key port session-secret) + (authn:initialise-oauth2) + (model:prepare-db-connections) + (migrate-db) + + (when session-secret + (setq hunchentoot:*session-secret* session-secret)) + + (setq hunchentoot:*session-max-time* (* 60 60 24 90)) + + (setq *acceptor* + (make-instance 'easy-routes:routes-acceptor :port port)) + (hunchentoot:start *acceptor*)) + +(defun main () + (let ((port (integer-env "PANETTONE_PORT" :default 6161)) + (cheddar-url (uiop:getenvp "CHEDDAR_URL")) + (session-secret (uiop:getenvp "SESSION_SECRET"))) + (when cheddar-url (setq *cheddar-url* cheddar-url)) + (setq hunchentoot:*show-lisp-backtraces-p* nil) + (setq hunchentoot:*log-lisp-backtraces-p* nil) + + (start-panettone :port port + :session-secret session-secret) + + (format t "launched panettone on port ~A~%" port) + + (sb-thread:join-thread + (find-if (lambda (th) + (string= (sb-thread:thread-name th) + (format nil "hunchentoot-listener-*:~A" port))) + (sb-thread:list-all-threads))))) + +(comment + (setq hunchentoot:*catch-errors-p* nil) + ;; to setup an ssh tunnel to cheddar+irccat for development: + ;; ssh -N -L 4238:localhost:4238 -L 4722:localhost:4722 whitby.tvl.fyi + (start-panettone :port 6161 + :session-secret "session-secret") + ) diff --git a/web/panettone/src/util.lisp b/web/panettone/src/util.lisp new file mode 100644 index 000000000000..2abedf7b8fbb --- /dev/null +++ b/web/panettone/src/util.lisp @@ -0,0 +1,15 @@ +(in-package :panettone.util) + +(defun integer-env (var &key default) + (or + (when-let ((str (uiop:getenvp var))) + (try-parse-integer str)) + default)) + +(defun add-missing-base64-padding (s) + "Add any missing padding characters to the (un-padded) base64 string `S', such +that it can be successfully decoded by the `BASE64' package" + ;; I apologize + (let* ((needed-padding (mod (length s) 4)) + (pad-chars (if (zerop needed-padding) 0 (- 4 needed-padding)))) + (format nil "~A~v@{~A~:*~}" s pad-chars "="))) diff --git a/web/panettone/test/inline-markdown_test.lisp b/web/panettone/test/inline-markdown_test.lisp new file mode 100644 index 000000000000..bb907504368b --- /dev/null +++ b/web/panettone/test/inline-markdown_test.lisp @@ -0,0 +1,54 @@ +(in-package :panettone.tests) +(declaim (optimize (safety 3))) + +(defmacro inline-markdown-unit-test (name input expected) + `(test ,name + (is (equal + ,expected + (with-output-to-string (*standard-output*) + (render-inline-markdown ,input)))))) + +(inline-markdown-unit-test + inline-markdown-typical-test + "hello *world*, here is ~~no~~ `code`!" + "hello <em>world</em>, here is <del>no</del> <code>code</code>!") + +(inline-markdown-unit-test + inline-markdown-two-emphasize-types-test + "*stress* *this*" + "<em>stress</em> <em>this</em>") + +(inline-markdown-unit-test + inline-markdown-html-escaping-test + "<tag>öäü" + "<tag>öäü") + +(inline-markdown-unit-test + inline-markdown-nesting-test + "`inside code *anything* goes`, but also ~~*here*~~" + "<code>inside code *anything* goes</code>, but also <del>*here*</del>") + +(inline-markdown-unit-test + inline-markdown-escaping-test + "A backslash \\\\ shows: \\*, \\` and \\~~" + "A backslash \\ shows: *, ` and ~~") + +(inline-markdown-unit-test + inline-markdown-nested-escaping-test + "`prevent \\`code\\` from ending, but never stand alone \\\\`" + "<code>prevent `code` from ending, but never stand alone \\</code>") + +(inline-markdown-unit-test + inline-markdown-escape-normal-tokens-test + "\\Normal tokens \\escaped?" + "\\Normal tokens \\escaped?") + +(inline-markdown-unit-test + inline-markdown-no-unclosed-tags-test + "A tag, once opened, *must be closed" + "A tag, once opened, <em>must be closed</em>") + +(inline-markdown-unit-test + inline-markdown-unicode-safe + "Does Unicode 👨👨👧👦 break \\👩🏾🦰 tokenization?" + "Does Unicode 👨‍👨‍👧‍👦 break \\👩🏾‍🦰 tokenization?") diff --git a/web/panettone/test/irc_test.lisp b/web/panettone/test/irc_test.lisp new file mode 100644 index 000000000000..0224836cbc32 --- /dev/null +++ b/web/panettone/test/irc_test.lisp @@ -0,0 +1,5 @@ +(in-package :panettone.tests) +(declaim (optimize (safety 3))) + +(test noping-test + (is (not (equal "grfn" (panettone.irc:noping "grfn"))))) diff --git a/web/panettone/test/model_test.lisp b/web/panettone/test/model_test.lisp new file mode 100644 index 000000000000..e4cd78a65a43 --- /dev/null +++ b/web/panettone/test/model_test.lisp @@ -0,0 +1,13 @@ +(in-package :panettone.tests) +(declaim (optimize (safety 3))) + +(test initialize-issue-status-test + (let ((issue (make-instance 'model:issue :status "open"))) + (is (eq :open (model:status issue))))) + +(test initialize-issue-created-at-test + (let* ((time (get-universal-time)) + (issue (make-instance 'model:issue :created-at time))) + (is (local-time:timestamp= + (local-time:universal-to-timestamp time) + (model:created-at issue))))) diff --git a/web/panettone/test/package.lisp b/web/panettone/test/package.lisp new file mode 100644 index 000000000000..d2a2f974208e --- /dev/null +++ b/web/panettone/test/package.lisp @@ -0,0 +1,3 @@ +(defpackage :panettone.tests + (:use :cl :klatre :fiveam + :panettone.inline-markdown)) diff --git a/web/panettone/test/util_test.lisp b/web/panettone/test/util_test.lisp new file mode 100644 index 000000000000..ff52d916cb3a --- /dev/null +++ b/web/panettone/test/util_test.lisp @@ -0,0 +1,9 @@ +(in-package :panettone.tests) +(declaim (optimize (safety 3))) + +(test add-missing-base64-padding-test + (is (string= + "abcdef" + (base64:base64-string-to-string + (panettone.util:add-missing-base64-padding + 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b/web/pwcrypt/Cargo.toml new file mode 100644 index 000000000000..eadf4d59da31 --- /dev/null +++ b/web/pwcrypt/Cargo.toml @@ -0,0 +1,13 @@ +[package] +name = "pwcrypt" +version = "0.1.0" +edition = "2021" + +[dependencies] +argon2 = "0.5.0" +getrandom = { version = "0.2.10", features = ["js"] } +gloo = "0.8.0" +rand_core = { version = "0.6.4", features = ["getrandom"] } +wasm-bindgen = "= 0.2.89" +web-sys = "0.3" +yew = { version = "0.20.0", features = [ "csr" ]} diff --git a/web/pwcrypt/default.nix b/web/pwcrypt/default.nix new file mode 100644 index 000000000000..c0b2974f9aec --- /dev/null +++ b/web/pwcrypt/default.nix @@ -0,0 +1,51 @@ +{ depot, lib, pkgs, ... }: + +let + wasmRust = pkgs.rust-bin.stable.latest.default.override { + targets = [ "wasm32-unknown-unknown" ]; + }; + + cargoToml = with builtins; fromTOML (readFile ./Cargo.toml); + + wasmBindgenMatch = + cargoToml.dependencies.wasm-bindgen == "= ${pkgs.wasm-bindgen-cli.version}"; + + assertWasmBindgen = assert (lib.assertMsg wasmBindgenMatch '' + Due to instability in the Rust WASM ecosystem, the trunk build + tool enforces that the Cargo-dependency version of `wasm-bindgen` + MUST match the version of the CLI supplied in the environment. + + This can get out of sync when nixpkgs is updated. To resolve it, + wasm-bindgen must be bumped in the Cargo.toml file and cargo needs + to be run to resolve the dependencies. + + Versions of `wasm-bindgen` in Cargo.toml: + + Expected: '= ${pkgs.wasm-bindgen-cli.version}' + Actual: '${cargoToml.dependencies.wasm-bindgen}' + ''); pkgs.wasm-bindgen-cli; + + deps = [ + pkgs.binaryen + pkgs.sass + pkgs.trunk + + wasmRust + assertWasmBindgen + ]; +in +pkgs.rustPlatform.buildRustPackage rec { + pname = "pwcrypt"; + version = "canon"; + src = lib.cleanSource ./.; + cargoLock.lockFile = ./Cargo.lock; + + buildPhase = '' + export PATH=${lib.makeBinPath deps}:$PATH + mkdir home + export HOME=$PWD/home + trunk build --release -d $out + ''; + + dontInstall = true; +} diff --git a/web/pwcrypt/index.html b/web/pwcrypt/index.html new file mode 100644 index 000000000000..cacf984d88da --- /dev/null +++ b/web/pwcrypt/index.html @@ -0,0 +1,26 @@ +<!DOCTYPE html> +<html> + <head> + <meta charset="utf-8" /> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <link rel="stylesheet" + href="https://static.tvl.su/latest/terminal.min.css" /> + <title>//web/pwcrypt</title> + </head> + + <body> + <noscript> + <h1>//web/pwcrypt</h1> + <p> + This application hashes passwords in your browser, and + requires JavaScript (or more specifically, WebAssembly) to + run. + </p> + <p> + All of the involved code is + available <a href="https://at.tvl.fyi/?q=%2F%2Fweb%2Fpwcrypt">in + the depot</a> and is licensed under free software licenses. + </p> + </noscript> + </body> +</html> diff --git a/web/pwcrypt/src/main.html b/web/pwcrypt/src/main.html new file mode 100644 index 000000000000..b19cbd379b70 --- /dev/null +++ b/web/pwcrypt/src/main.html @@ -0,0 +1,48 @@ +html!{ +<div class="container"> + <h1>{"//web/pwcrypt"}</h1> + <p>{"You can use this page to create your hashed credentials for a TVL account. Enter your desired username and password below, and send us the output you receive in order for us to create your account."}</p> + <p> + {"Detailed documentation about the registration process is "} + <a href="https://code.tvl.fyi/about/docs/REVIEWS.md#registration"> + {"available here"} + </a> + {"."} + </p> + <p>{"All of this happens in your browser: Your password does not leave this site!"}</p> + + <form> + <fieldset> + <legend>{"Credentials:"}</legend> + + <div class="form-group"> + <label for="username">{"Username:"}</label> + <input id="username" name="username" type="text" + oninput={link.callback(|event| input_to_message(event, Msg::SetUsername))} /> + </div> + + <div class="form-group"> + <label for="email">{"Email:"}</label> + <input id="email" name="email" type="email" + oninput={link.callback(|event| input_to_message(event, Msg::SetEmail))} /> + </div> + + <div class="form-group"> + <label for="password">{"Password:"}</label> + <input id="password" name="password" type="password" + oninput={link.callback(|event| input_to_message(event, Msg::SetPassword))} /> + </div> + + if let Some(missing) = self.whats_missing() { + <p>{"Please fill in "}{missing}{"."}</p> + } else { + <div class="form-group"> + <button class="btn btn-default" type="button" + onclick={link.callback(|_| Msg::UpdateCredentials)}>{"Prepare credentials"}</button> + </div> + } + </fieldset> + </form> + {self.display_credentials()} +</div> +} diff --git a/web/pwcrypt/src/main.rs b/web/pwcrypt/src/main.rs new file mode 100644 index 000000000000..2b9b82abb022 --- /dev/null +++ b/web/pwcrypt/src/main.rs @@ -0,0 +1,160 @@ +use argon2::password_hash::{PasswordHasher, SaltString}; +use argon2::Argon2; +use gloo::console::log; +use rand_core::OsRng; +use web_sys::HtmlInputElement; +use yew::prelude::*; + +fn hash_password(pw: &str) -> String { + let salt = SaltString::generate(&mut OsRng); + let argon2 = Argon2::default(); + argon2 + .hash_password(pw.as_bytes(), &salt) + .expect("failed to hash pw") + .to_string() +} + +enum Msg { + NoOp, + SetEmail(String), + SetPassword(String), + SetUsername(String), + UpdateCredentials, +} + +#[derive(Default)] +struct App { + email: Option<String>, + password: Option<String>, + username: Option<String>, + hashed: Option<String>, +} + +impl App { + fn whats_missing(&self) -> Option<String> { + let mut missing = vec![]; + + if self.username.is_none() { + missing.push("username"); + } + + if self.email.is_none() { + missing.push("email"); + } + + if self.password.is_none() { + missing.push("password"); + } + + match missing.len() { + 0 => None, + 1 => Some(missing[0].to_string()), + 2 => Some(format!("{} and {}", missing[0], missing[1])), + 3 => Some(format!("{}, {} and {}", missing[0], missing[1], missing[2])), + _ => unreachable!(), + } + } + + fn update_credentials(&mut self) { + if self.password.is_none() { + log!("error: password unset, but credentials requested"); + return; + } + + let pw = self.password.as_ref().unwrap(); + let hashed = hash_password(pw); + log!("hashed password to", &hashed); + self.hashed = Some(hashed); + } + + fn display_credentials(&self) -> Html { + if let (Some(username), Some(email), Some(hash)) = + (&self.username, &self.email, &self.hashed) + { + html! { + <> + <hr /> + <p>{"Your credentials are as follows: "}</p> + <pre> + {" {\n"} + {" username = \""}{username}{"\";\n"} + {" email = \""}{email}{"\";\n"} + {" password = \"{ARGON2}"}{hash}{"\";\n"} + {" }"} + </pre> + <p> + {"Please propose a CL to "} + <a href="https://at.tvl.fyi/?q=//ops/users/default.nix"> + <code>{"//ops/users/default.nix"}</code> + </a> + {", or submit your patch via email to "} + <a href="mailto:depot@tvl.su">{"depot@tvl.su"}</a> + {"."} + </p> + </> + } + } else { + html! {} + } + } +} + +fn input_to_message(event: InputEvent, msg: fn(String) -> Msg) -> Msg { + let input = event.target_unchecked_into::<HtmlInputElement>(); + if input.check_validity() { + msg(input.value()) + } else { + Msg::NoOp + } +} + +fn set_if_present(s: String, target: &mut Option<String>) { + if s.is_empty() { + *target = None; + } else { + *target = Some(s); + } +} + +impl Component for App { + type Message = Msg; + type Properties = (); + + fn create(_: &Context<Self>) -> Self { + Self::default() + } + + fn update(&mut self, _: &Context<Self>, msg: Self::Message) -> bool { + log!( + "handling message ", + match msg { + Msg::NoOp => "NoOp", + Msg::SetEmail(_) => "SetEmail", + Msg::SetUsername(_) => "SetUsername", + Msg::SetPassword(_) => "SetPassword", + Msg::UpdateCredentials => "UpdateCredentials", + } + ); + + match msg { + Msg::NoOp => return false, + Msg::SetEmail(email) => set_if_present(email, &mut self.email), + Msg::SetUsername(username) => set_if_present(username, &mut self.username), + Msg::SetPassword(password) => set_if_present(password, &mut self.password), + Msg::UpdateCredentials => { + self.update_credentials(); + } + } + + true + } + + fn view(&self, ctx: &Context<Self>) -> Html { + let link = ctx.link(); + include!("main.html") + } +} + +fn main() { + yew::Renderer::<App>::new().render(); +} diff --git a/web/static/default.nix b/web/static/default.nix new file mode 100644 index 000000000000..9eaeb0ec1495 --- /dev/null +++ b/web/static/default.nix @@ -0,0 +1,29 @@ +# Expose all static assets as a folder. The derivation contains a +# `drvHash` attribute which can be used for cache-busting. +{ depot, lib, pkgs, ... }: + +let + storeDirLength = with builtins; (stringLength storeDir) + 1; + logo = depot.web.tvl.logo; +in +lib.fix (self: pkgs.runCommand "tvl-static" +{ + passthru = { + # Preserving the string context here makes little sense: While we are + # referencing this derivation, we are not doing so via the nix store, + # so it makes little sense for Nix to police the references. + drvHash = builtins.unsafeDiscardStringContext ( + lib.substring storeDirLength 32 self.drvPath + ); + }; +} '' + mkdir $out + cp -r ${./.}/* $out + cp ${logo.pastelRainbow} $out/logo-animated.svg + cp ${logo.bluePng} $out/logo-blue.png + cp ${logo.greenPng} $out/logo-green.png + cp ${logo.orangePng} $out/logo-orange.png + cp ${logo.purplePng} $out/logo-purple.png + cp ${logo.redPng} $out/logo-red.png + cp ${logo.yellowPng} $out/logo-yellow.png +'') diff --git a/web/static/favicon.webp b/web/static/favicon.webp new file mode 100644 index 000000000000..741cdbc64ff2 --- /dev/null +++ b/web/static/favicon.webp Binary files differdiff --git a/web/static/files/adisbladis_tazjin_tvix.webp b/web/static/files/adisbladis_tazjin_tvix.webp new file mode 100644 index 000000000000..38e004543da6 --- /dev/null +++ b/web/static/files/adisbladis_tazjin_tvix.webp Binary files differdiff --git a/web/static/files/flokli_tazjin_tvix.webp b/web/static/files/flokli_tazjin_tvix.webp new file mode 100644 index 000000000000..4c0b94903fda --- /dev/null +++ b/web/static/files/flokli_tazjin_tvix.webp Binary files differdiff --git a/web/static/jetbrains-mono-bold-italic.woff2 b/web/static/jetbrains-mono-bold-italic.woff2 new file mode 100644 index 000000000000..34b5c69ae1cf --- /dev/null +++ b/web/static/jetbrains-mono-bold-italic.woff2 Binary files differdiff --git a/web/static/jetbrains-mono-bold.woff2 b/web/static/jetbrains-mono-bold.woff2 new file mode 100644 index 000000000000..84a008af7edb --- /dev/null +++ b/web/static/jetbrains-mono-bold.woff2 Binary files differdiff --git a/web/static/jetbrains-mono-italic.woff2 b/web/static/jetbrains-mono-italic.woff2 new file mode 100644 index 000000000000..85fd4687891e --- /dev/null +++ b/web/static/jetbrains-mono-italic.woff2 Binary files differdiff --git a/web/static/jetbrains-mono.woff2 b/web/static/jetbrains-mono.woff2 new file mode 100644 index 000000000000..d5b94cb9e7db --- /dev/null +++ b/web/static/jetbrains-mono.woff2 Binary files differdiff --git a/web/static/terminal.min.css b/web/static/terminal.min.css new file mode 100644 index 000000000000..8289785823d9 --- /dev/null +++ b/web/static/terminal.min.css @@ -0,0 +1 @@ +/* SPDX-License-Identifier: MIT; 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img{padding:0}figure{margin:0}figure>figcaption{color:var(--secondary-color);text-align:center}.hljs{display:block;overflow-x:auto;padding:.5em;background:var(--block-background-color);color:var(--font-color)}.hljs-comment,.hljs-quote{color:var(--secondary-color)}.hljs-variable{color:var(--font-color)}.hljs-built_in,.hljs-keyword,.hljs-name,.hljs-selector-tag,.hljs-tag{color:var(--primary-color)}.hljs-addition,.hljs-attribute,.hljs-literal,.hljs-section,.hljs-string,.hljs-template-tag,.hljs-template-variable,.hljs-title,.hljs-type{color:var(--secondary-color)}.hljs-string{color:var(--secondary-color)}.hljs-deletion,.hljs-meta,.hljs-selector-attr,.hljs-selector-pseudo{color:var(--primary-color)}.hljs-doctag{color:var(--secondary-color)}.hljs-attr{color:var(--primary-color)}.hljs-bullet,.hljs-link,.hljs-symbol{color:var(--primary-color)}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700} diff --git a/web/static/tvl.css b/web/static/tvl.css new file mode 100644 index 000000000000..b28736bce104 --- /dev/null +++ b/web/static/tvl.css @@ -0,0 +1,136 @@ +/* Jetbrains Mono font from https://www.jetbrains.com/lp/mono/ + licensed under Apache 2.0. Thanks, Jetbrains! */ +@font-face { + font-family: jetbrains-mono; + src: url(jetbrains-mono.woff2); +} + +@font-face { + font-family: jetbrains-mono; + font-weight: bold; + src: url(jetbrains-mono-bold.woff2); +} + +@font-face { + font-family: jetbrains-mono; + font-style: italic; + src: url(jetbrains-mono-italic.woff2); +} + +@font-face { + font-family: jetbrains-mono; + font-weight: bold; + font-style: italic; + src: url(jetbrains-mono-bold-italic.woff2); +} + +/* Generic-purpose styling */ + +body { + max-width: 800px; + margin: 40px auto; + line-height: 1.6; + font-size: 18px; + padding: 0 10px; + font-family: jetbrains-mono, monospace; +} + +h1, h2, h3 { + line-height: 1.2 +} + +/* Blog Posts */ + +article { + line-height: 1.5em; +} + +/* spacing between the paragraphs in blog posts */ +article p { + margin: 1.4em auto; +} + +/* Blog styling */ + +.light { + color: #383838; +} + +.blog-title { + color: inherit; + text-decoration: none; +} + +.footer { + text-align: right; +} + +.date { + text-align: right; + font-style: italic; + float: right; +} + +.inline { + display: inline; +} + +.lod { + text-align: center; +} + +.uncoloured-link { + color: inherit; +} + +pre { + width: 100%; + overflow: auto; +} + +code { + background: aliceblue; +} + +img { + max-width: 100%; +} + +.cheddar-callout { + display: block; + padding: 10px; +} + +.cheddar-question { + color: #3367d6; + background-color: #e8f0fe; +} + +.cheddar-todo { + color: #616161; + background-color: #eeeeee; +} + +.cheddar-tip { + color: #00796b; + background-color: #e0f2f1; +} + +.cheddar-warning { + color: #a52714; + background-color: #fbe9e7; +} + +kbd { + background-color: #eee; + border-radius: 3px; + border: 1px solid #b4b4b4; + box-shadow: 0 1px 1px rgba(0, 0, 0, .2), 0 2px 0 0 rgba(255, 255, 255, .7) inset; + color: #333; + display: inline-block; + font-size: .85em; + font-weight: 700; + line-height: 1; + padding: 2px 4px; + white-space: nowrap; +} diff --git a/web/todolist/default.nix b/web/todolist/default.nix new file mode 100644 index 000000000000..4712ad21bab0 --- /dev/null +++ b/web/todolist/default.nix @@ -0,0 +1,116 @@ +# Generates a simple web view of open TODOs in the depot. +# +# Only TODOs that match the form 'TODO($username)' are considered, and +# only for users that are known to us. +{ depot, lib, pkgs, ... }: + +let + inherit (pkgs) + jq + ripgrep + runCommand + writeTextFile + ; + + inherit (builtins) + elem + filter + fromJSON + head + readFile + map + ; + + inherit (lib) concatStringsSep; + + inherit (depot.nix.yants) + defun + int + string + struct + ; + + knownUsers = map (u: u.username) depot.ops.users; + + todo = struct { + file = string; + line = int; + todo = string; + user = string; + }; + + allTodos = fromJSON (readFile (runCommand "depot-todos.json" { } '' + ${ripgrep}/bin/rg --json 'TODO\(\w+\):.*$' ${depot.path} | \ + ${jq}/bin/jq -s -f ${./extract-todos.jq} > $out + '')); + + knownUserTodos = filter (todos: elem (head todos).user knownUsers) allTodos; + + fileLink = defun [ todo string ] (t: + ''<a style="color: inherit;" + href="https://cs.tvl.fyi/depot/-/blob/${t.file}#L${toString t.line}"> + //${t.file}:${toString t.line}</a>''); + + todoElement = defun [ todo string ] (t: '' + <p>${fileLink t}:</p> + <blockquote>${t.todo}</blockquote> + + ''); + + userParagraph = todos: + let user = (head todos).user; + in '' + <p> + <h3> + <a style="color:inherit; text-decoration: none;" + name="${user}" + href="#${user}">${user}</a> + </h3> + ${concatStringsSep "\n" (map todoElement todos)} + </p> + <hr> + ''; + + staticUrl = "https://static.tvl.fyi/${depot.web.static.drvHash}"; + +in +writeTextFile { + name = "tvl-todos"; + destination = "/index.html"; + text = '' + <!DOCTYPE html> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="description" content="TVL's todo-list"> + <link rel="stylesheet" type="text/css" media="all" href="${staticUrl}/tvl.css"> + <link rel="icon" type="image/webp" href="${staticUrl}/favicon.webp"> + <title>TVL's todo-list</title> + <style> + svg { + max-width: inherit; + height: auto; + } + </style> + </head> + <body class="dark"> + <header> + <h1><a class="blog-title" href="/">The Virus Lounge's todo-list</a> </h1> + <hr> + </header> + <main> + ${concatStringsSep "\n" (map userParagraph knownUserTodos)} + </main> + <footer> + <p class="footer"> + <a class="uncoloured-link" href="https://tvl.fyi">homepage</a> + | + <a class="uncoloured-link" href="https://cs.tvl.fyi/depot/-/blob/README.md">code</a> + | + <a class="uncoloured-link" href="https://cl.tvl.fyi">reviews</a> + </p> + <p class="lod">ಠ_ಠ</p> + </footer> + </body> + ''; +} diff --git a/web/todolist/extract-todos.jq b/web/todolist/extract-todos.jq new file mode 100644 index 000000000000..d4e0476c403a --- /dev/null +++ b/web/todolist/extract-todos.jq @@ -0,0 +1,30 @@ +# Simple jq script to extract all TODO comments in the code base from +# ripgrep's JSON output. +# +# This assumes that the filter used is something like 'TODO\(\w+\):' + +# Capture the username and todo entry from an input string. +def capture_todo: + capture("TODO\\((?<user>\\w+)\\):\\s+(?<todo>.*)$"); + +# Construct a structure with only the fields we need to populate the +# page. +def simplify_match: + .data as $data + | (.data.submatches[0].match.text | capture_todo) as $capture + | { + file: ($data | .path.text | sub("/nix/store/.+-depot/"; "")), + line: ($data | .line_number), + todo: ($capture | .todo), + user: ($capture | .user), + }; + +# Group all matches first by the user and return them in sorted order +# by the file in which they appear. This matches the presentation +# order on the website. +def group_by_user: . + | group_by(.user) + | map(sort_by(.file)); + +# main: +map(select(.type == "match") | simplify_match) | group_by_user diff --git a/web/tvl/blog/default.nix b/web/tvl/blog/default.nix new file mode 100644 index 000000000000..4aac1b73147d --- /dev/null +++ b/web/tvl/blog/default.nix @@ -0,0 +1,27 @@ +{ depot, ... }: + +{ + config = { + name = "TVL's blog"; + footer = depot.web.tvl.footer { }; + baseUrl = "https://tvl.fyi/blog"; + }; + + posts = builtins.sort (a: b: a.date > b.date) [ + { + key = "rewriting-nix"; + title = "Tvix: We are rewriting Nix"; + date = 1638381387; + content = ./rewriting-nix.md; + author = "tazjin"; + } + + { + key = "tvix-status-september-22"; + title = "Tvix Status - September '22"; + date = 1662995534; + content = ./tvix-status-202209.md; + author = "tazjin"; + } + ]; +} diff --git a/web/tvl/blog/rewriting-nix.md b/web/tvl/blog/rewriting-nix.md new file mode 100644 index 000000000000..1b143e5b0ed9 --- /dev/null +++ b/web/tvl/blog/rewriting-nix.md @@ -0,0 +1,90 @@ +Evaluating the Nix programming language, used by the Nix package +manager, is currently very slow. This becomes apparent in all projects +written in Nix that are not just simple package definitions, for +example: + +* the NixOS module system +* TVL projects like + [`//nix/yants`](https://at.tvl.fyi/?q=%2F%2Fnix%2Fyants) and + [`//web/bubblegum`](https://at.tvl.fyi/?q=%2F%2Fweb%2Fbubblegum). +* the code that [generates build + instructions](https://at.tvl.fyi/?q=%2F%2Fops%2Fpipelines) for TVL's + [CI setup](https://tvl.fyi/builds) + +Whichever project you pick, they all suffer from issues with the +language implementation. At TVL, it takes us close to a minute to +create the CI instructions for our monorepo at the moment - despite it +being a plain Nix evaluation. Running our Nix-native build systems for +[Go](https://code.tvl.fyi/about/nix/buildGo) and [Common +Lisp](https://code.tvl.fyi/about/nix/buildLisp) takes much more time +than we would like. + +Some time last year a few of us got together and started investigating +ways to modernise the current architecture of Nix and figure out how +to improve the speed of some of the components. We created over [250 +commits](https://cl.tvl.fyi/q/topic:tvix) in our fork of the Nix 2.3 +codebase at the time, tried [performance +experiments](https://cl.tvl.fyi/c/depot/+/1123/) aimed at improving +the current evaluator and fought [gnarly +bugs](https://cl.tvl.fyi/c/depot/+/1504). + +After a while we realised that we were treading water: Some of our +ideas are too architecturally divergent from Nix to be done on top of +the existing codebase, and the memory model of Nix causes significant +headaches when trying to do any kind of larger change. + +We needed an alternative approach and started brainstorming on a bent +whiteboard in a small flat in Hurghada, Egypt. + + + +Half a year later we are now ready to announce our new project: +**Tvix**, a re-imagined Nix with full nixpkgs compatibility. Tvix is +generously funded [by NLNet](https://nlnet.nl/project/Tvix/) (thanks!) +and we are ready to start implementing it. + +The [Tvix +architecture](https://code.tvl.fyi/about/tvix/docs/components.md) is +designed to be modular: It should be possible to write an evaluator +that plugs in the Guile language (for compatibility with GNU Guix), to +use arbitrary builders, and to replace the store implementation. + +Tvix has these high-level goals: + +* Creating an alternative implementation of Nix that is **fully + compatible with nixpkgs**. + + The package collection is an enormous effort with hundreds of + thousands of commits, encoding expert knowledge about lots of + different software and ways of building and managing it. It is a + very valuable piece of software and we must be able to reuse it. + +* More efficient Nix language evaluation, leading to greatly increased + performance. + +* No more strict separation of evaluation and build phases: Generating + Nix data structures from build artefacts ("IFD") should be supported + first-class and not incur significant performance cost. + +* Well-defined interaction protocols for how the three different + components (evaluator, builder, store) interact. + +* A builder implementation using OCI instead of custom sandboxing + code. + + + +Tvix is not intended to *replace* Nix, instead we want to improve the +ecosystem by offering an alternative, fast and reliable implementation +for Nix features that are in use today. + +As things ramp up we will be posting more information on this blog, +for now you can keep an eye on +[`//tvix`](https://cs.tvl.fyi/depot/-/tree/tvix) in the TVL monorepo +and subscribe to [our feed](https://tvl.fyi/feed.atom). + +Stay tuned! + +<span style="font-size: small;">PS: TVL is international, but a lot of +the development will take place in our office in Moscow. Say hi if +you're around and interested!</span> diff --git a/web/tvl/blog/tvix-status-202209.md b/web/tvl/blog/tvix-status-202209.md new file mode 100644 index 000000000000..b823820b0b70 --- /dev/null +++ b/web/tvl/blog/tvix-status-202209.md @@ -0,0 +1,165 @@ +We've now been working on our rewrite of Nix, [Tvix][], for over a +year. + +As you can imagine, this past year has been turbulent, to say the +least, given the regions where many of us live. As a result we haven't +had as much time to work on fun things (like open-source software +projects!) as we'd like. + +We've all been fortunate enough to continue making progress, but we +just haven't had the bandwidth to communicate with you and keep you up +to speed on what's going on. That's what this blog post is for. + +## Nix language evaluator + +The most significant progress in the past six months has been on our +Nix language evaluator. To answer the most important question: yes, +you can play with it right now – in [Tvixbolt][]! + +We got the evaluator into its current state by first listing all the +problems we were likely to encounter, then solving them independently, +and finally assembling all those small-scale solutions into a coherent +whole. As a result, we briefly had an impractically large private +source tree, which we have since [integrated][] into our monorepo. + +This process was much slower than we would have liked, due to code +review bandwidth... which is to say, we're all volunteers. People have +lives, bottlenecks happen. + +Most of this code was either written or reviewed by [grfn][], +[sterni][] and [tazjin][] (that's me!). + +### How much of eval is working? + +*Most of it*! You can enter most (but not *all*, sorry! Not yet, +anyway.) Nix language expressions in [Tvixbolt][] and observe how they +are evaluated. + +There's a lot of interesting stuff going on under the hood, such as: + +* The Tvix compiler can emit warnings and errors without failing + early, and retains as much source information as possible. This will + enable you to use Tvix as the basis for developer tooling, such as + language servers. + +* The Tvix compiler performs in-depth scope analysis, so it can both + generate efficient bytecode for accessing identifiers, and alert you + about problems in your code before runtime. + +* The runtime supports tail-call optimisation in many (but – again – + not yet all) cases, so you can evaluate recursive expressions in + constant stack space. + +* The runtime can give you different backing representations for the + same Nix type. For example, an attribute set is represented + differently depending on whether you've constructed an empty one, a + `name/value` pair, or a larger set. This lets us optimise frequent, + well-known use-cases without impacting the general case much. + +We've run some initial benchmarks against C++ Nix (using the features +that are ready), and in most cases Tvix evaluation is an order of +magnitude faster. To be fair, though, these benchmarks are in no way +indicative of real-life performance for things like `nixpkgs`. More +information is coming... eventually. + +### How does it all work? + +Tvix's evaluator uses a custom abstract machine with a Nix-specific +instruction set, and a compiler that traverses a parsed Nix AST to +emit this bytecode and perform a set of optimisations and other +analysis. The most important benefit of this is that we can plan and +lay out the execution of a program in a way that is better suited to +an efficient runtime than directly traversing the AST. + +TIP: You can see the generated bytecode in [Tvixbolt][]! + +This is all written in about 4000 lines of Rust (naturally), some of +which – especially around scope-handling – are deceptively simple. + +As part of our CI suite, we run the evaluator against some tests we +wrote ourselves, as well as against the upstream Nix test suite (which +we don't *quite* pass yet. We're working on it!). + +### What's next for tvix-eval? + +Despite all our progress, there are still some unfinished feature +areas, and some of them are pretty important: + +1. The majority of Nix's builtins – including fundamental ones like + `import` and `derivation` – aren't implemented yet. + +2. Neither are recursive attribute sets (`rec`). This isn't because of + a problem with the recursion itself, but because of the handling of + nested keys (such as `a.b`). We have a lackluster solution already, + but are designing a more efficient one. + +In both cases, we've mostly figured out what to do; now it's just a +matter of finding the time to do it. Our progress is steady, and can +be tracked [in the source][src] (viewer without Javascript +[here][src-noscript]). + +Apart from that, the next steps are: + +* Comprehensive benchmarking. We're standing up an infrastructure for + continuous benchmarking to measure the impact of changes. It'll also + let us identify and optimise hotspots + +* Implementing known optimisations. There are some areas of the code + that have the potential for significant speed gains, but we're + holding off implementing those until the evaluator is feature + complete and passes the Nix test suite. + +* Finishing our language specification. Based on what we've learned, + we're writing a specification of the Nix language that captures its + various behaviours in all their tricky subtlety and subtle trickery. + +Once we can evaluate `nixpkgs`, we're likely to shift our focus +towards the other areas of Tvix. + +## The Other Areas of Tvix + +Speaking of these other areas (most importantly, the builder and store +implementation), we've made some nice progress there also. + +While we've yet to start assembling the actual pieces, [flokli][] and +[adisbladis][] have been hard at work on [go-nix][], which aims to +implement many of the low-level primitives required for the Nix store +and builder (hashing and encoding schemes, archive formats, reference +scanning ...). + +We're looking forward to telling you more in the next Tvix status +update! + +## Outro ... + +We'd be delighted to onboard new contributors to Tvix! Please take a +look at the main [TVL page](https://tvl.fyi) to find out how to get in +touch with us if you'd like to join! + +Thanks also, of course, to [NLNet](https://nlnet.nl/) for sponsoring +some of this work! + +And finally, we would like to thank and pay our respects to jD91mZM2 – +the original author of +[rnix-parser](https://github.com/nix-community/rnix-parser) – who has +sadly passed away. Please, tell people how important they are to you. + +We use `rnix-parser` in our compiler, and its well-designed internals +(also thanks to its new maintainers!) have saved us a lot of time. + +That's it for this update. Go play with [Tvixbolt][], have fun +figuring out weird ways to break it – and if you do, let us know. + +We'll see you around! + +[Tvix]: https://tvl.fyi/blog/rewriting-nix +[Tvixbolt]: https://tvixbolt.tvl.su +[integrated]: https://cl.tvl.fyi/q/status:merged+%2522tvix/eval%2522+mergedbefore:2022-09-09 +[src]: https://cs.tvl.fyi/depot/-/tree/tvix/eval +[src-noscript]: https://code.tvl.fyi/tree/tvix/eval +[tazjin]: https://tazj.in +[grfn]: https://gws.fyi/ +[sterni]: https://github.com/sternenseemann +[go-nix]: https://github.com/nix-community/go-nix +[flokli]: https://flokli.de/ +[adisbladis]: https://github.com/adisbladis diff --git a/web/tvl/default.nix b/web/tvl/default.nix new file mode 100644 index 000000000000..8bbc7d566ab7 --- /dev/null +++ b/web/tvl/default.nix @@ -0,0 +1,141 @@ +{ depot, lib, pkgs, ... }: + +with depot.nix.yants; + +let + inherit (builtins) filter; + inherit (pkgs) graphviz runCommand writeText; + inherit (depot.web) atom-feed blog tvl; + + listPosts = defun [ (list blog.post) string ] (posts: + lib.concatStringsSep "\n" (map (p: "* [${p.title}](blog/${p.key})") posts) + ); + + postRenderingCommands = defun [ (list blog.post) string ] (posts: + lib.concatStringsSep "\n" + (map (p: "cp ${blog.renderPost tvl.blog.config p} $out/blog/${p.key}.html") posts) + ); + + tvlGraph = runCommand "tvl.svg" + { + nativeBuildInputs = with pkgs; [ fontconfig freetype cairo jetbrains-mono ]; + } '' + ${graphviz}/bin/neato -Tsvg ${./tvl.dot} > $out + ''; + + publishedPosts = filter blog.includePost tvl.blog.posts; + + feed = { + id = "https://tvl.fyi/"; + title = "TVL blog"; + subtitle = "Thoughts and news from The Virus Lounge"; + authors = [ "tazjin" ]; # TODO(tazjin): Extract from post info + + links = lib.singleton { + rel = "self"; + href = "https://tvl.fyi/feed.atom"; + }; + + entries = map (blog.toFeedEntry tvl.blog.config) publishedPosts; + }; + + atomFeed = writeText "feed.atom" (atom-feed.renderFeed feed); + + homepage = tvl.template { + title = "The Virus Lounge"; + content = '' + The Virus Lounge + ================ + + ---------------- + + <img class="tvl-logo" src="https://static.tvl.fyi/${depot.web.static.drvHash}/logo-animated.svg" + alt="Virus with lambda-shaped spike proteins sitting on an armchair"> + + Welcome to **The Virus Lounge**. We're a group of people who got + together in 2020, when we felt that there was not enough + spontaneous socialising on the internet. + + Because of our shared interests in topics like **build systems** + and **monorepos** we started working on code together, in our + monorepo called the *depot*. + + Feel free to explore the tech we have built so far, all our + systems are linked in the footer. + + ---------------- + + ## Blog + + Here are the most recent TVL blog posts. + + ${listPosts publishedPosts} + + You can also follow our [atom feed](https://tvl.fyi/feed.atom). + + ---------------- + + ## Getting in touch + + We mostly hang out on IRC. You can find us in [`#tvl`][tvl-irc] + on [hackint][], which is also reachable [via XMPP][hackint-xmpp] + at [`#tvl@irc.hackint.org`][tvl-xmpp] (sic!) and [via + Matrix][hackint-matrix] at [`#tvl:hackint.org`][tvl-matrix]. + + Hackint also provide a [web chat][tvl-webchat]. + + [tvl-irc]: ircs://irc.hackint.org:6697/#tvl + [hackint]: https://hackint.org/ + [hackint-xmpp]: https://hackint.org/transport/xmpp + [tvl-xmpp]: xmpp:#tvl@irc.hackint.org?join + [hackint-matrix]: https://hackint.org/transport/matrix + [tvl-matrix]: https://matrix.to/#/#tvl:hackint.org + [tvl-webchat]: https://webirc.hackint.org/#ircs://irc.hackint.org/#tvl + + Discussions of our software, patches, and anything else really + can also be sent to us via email to **depot@tvl.su**. You can + see the mails submitted to that list in our [public inbox][]. + + [public inbox]: https://inbox.tvl.su + + ---------------- + + ## Where did all these people come from? + + It's pretty straightforward. Feel free to click on people, too. + + <div class="tvl-graph-container"> + <!-- + cheddar leaves HTML inside of HTML alone, + so wrapping the SVG prevents it from messing it up + --> + ${builtins.readFile tvlGraph} + </div> + ''; + extraHead = '' + <style> + .tvl-graph-container { + max-width: inherit; + } + + .tvl-graph-container svg { + max-width: inherit; + height: auto; + } + + .tvl-logo { + width: 60%; + display: block; + margin-left: auto; + margin-right: auto; + } + </style> + ''; + }; +in +runCommand "website" { } '' + mkdir -p $out/blog + cp ${homepage} $out/index.html + ${postRenderingCommands tvl.blog.posts} + cp ${atomFeed} $out/feed.atom +'' diff --git a/web/tvl/footer/default.nix b/web/tvl/footer/default.nix new file mode 100644 index 000000000000..dc2c963f90f4 --- /dev/null +++ b/web/tvl/footer/default.nix @@ -0,0 +1,21 @@ +# Footer fragment for TVL homepages, used by //web/tvl/template for +# our static pages and also via //web/blog for blog posts. +{ lib, ... }: + +args: '' + <p class="footer"> + <a class="uncoloured-link" href="https://at.tvl.fyi/?q=%2F%2FREADME.md">code</a> + | + <a class="uncoloured-link" href="https://cl.tvl.fyi/">reviews</a> + | + <a class="uncoloured-link" href="https://tvl.fyi/builds">ci</a> + | + <a class="uncoloured-link" href="https://b.tvl.fyi/">bugs</a> + | + <a class="uncoloured-link" href="https://todo.tvl.fyi/">todos</a> + | + <a class="uncoloured-link" href="https://atward.tvl.fyi/">search</a> +'' + lib.optionalString (args ? extraFooter) args.extraFooter + '' + </p> + <p class="lod">ಠ_ಠ</p> +'' diff --git a/web/tvl/logo/default.nix b/web/tvl/logo/default.nix new file mode 100644 index 000000000000..808413549218 --- /dev/null +++ b/web/tvl/logo/default.nix @@ -0,0 +1,97 @@ +# Creates an output containing the logo in SVG format (animated and +# static, one for each background colour) and without animations in +# PNG. +{ depot, lib, pkgs, ... }: + +let + palette = { + purple = "#CC99C9"; + blue = "#9EC1CF"; + green = "#9EE09E"; + yellow = "#FDFD97"; + orange = "#FEB144"; + red = "#FF6663"; + }; + + staticCss = colour: '' + #armchair-background { + fill: ${colour}; + } + ''; + + # Create an animated CSS that equally spreads out the colours over + # the animation duration (1min). + animatedCss = colours: + let + # Calculate at which percentage offset each colour should appear. + stepSize = 100 / ((builtins.length colours) - 1); + frames = lib.imap0 (idx: colour: { inherit colour; at = idx * stepSize; }) colours; + frameCss = frame: "${toString frame.at}% { fill: ${frame.colour}; }"; + in + '' + #armchair-background { + animation: 30s infinite alternate armchairPalette; + } + + @keyframes armchairPalette { + ${lib.concatStringsSep "\n" (map frameCss frames)} + } + ''; + + # Dark version of the logo, suitable for light backgrounds. + darkCss = armchairCss: '' + .structure { + fill: #383838; + } + #letters { + fill: #fefefe; + } + ${armchairCss} + ''; + + # Light version, suitable for dark backgrounds. + lightCss = armchairCss: '' + .structure { + fill: #e4e4ef; + } + #letters { + fill: #181818; + } + ${armchairCss} + ''; + + logoShapes = builtins.readFile ./logo-shapes.svg; + logoSvg = style: '' + <svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" viewBox="420 860 1640 1500" + xmlns:xlink="http://www.w3.org/1999/xlink"> + <style>${style}</style> + ${logoShapes} + </svg> + ''; + +in +depot.nix.readTree.drvTargets (lib.fix (self: { + # Expose the logo construction functions. + inherit palette darkCss lightCss animatedCss staticCss; + + # Create a TVL logo SVG with the specified style. + logoSvg = style: pkgs.writeText "logo.svg" (logoSvg style); + + # Create a PNG of the TVL logo with the specified style and DPI. + logoPng = style: dpi: pkgs.runCommand "logo.png" { } '' + ${pkgs.inkscape}/bin/inkscape \ + --export-area-drawing \ + --export-background-opacity 0 \ + --export-dpi ${toString dpi} \ + ${self.logoSvg style} -o $out + ''; + + # Animated dark SVG logo with all colours. + pastelRainbow = self.logoSvg (darkCss (animatedCss (lib.attrValues palette))); +} + + # Add individual outputs for static dark logos of each colour. + // (lib.mapAttrs' + (k: v: lib.nameValuePair "${k}Png" + (self.logoPng (darkCss (staticCss v)) 96)) + palette))) diff --git a/web/tvl/logo/logo-shapes.svg b/web/tvl/logo/logo-shapes.svg new file mode 100644 index 000000000000..d35971e0a91a --- /dev/null +++ b/web/tvl/logo/logo-shapes.svg @@ -0,0 +1,27 @@ +<polygon id="armchair-background" points="463 2030 567 1814 1904 1814 1978 2030 1935 2169 1720 2155 1590 2311 873 2305 778 2142 570 2186"/> +<g class="structure"> + <path id="virusbody" d="M 707.524,1820.74 701.038,1401.58 970,1100 h 542 l 271.37,310.47 -16.99,419.17 -295.93,284.34 -445.46,-4.15 z"/> +</g> +<g class="structure" id="lambdas"> + <!-- virus lambdas and feet, clockwise starting at the top left --> + <path id="topleft" d="m 1002,1045 38,75 -65,35 -140,-260 h 78 l 47,80 45,-80 h 45 l 17.39,34.968" /> + <use id="topright" xlink:href="#topleft" transform="matrix(-1,0,0,1,2482,0)" /> + <use id="midright" xlink:href="#topleft" transform="matrix(-0.70710678,-0.70710678,-0.70710678,0.70710678,3284.799,1331.4128)" /> + <use id="bottomright" xlink:href="#topleft" transform="matrix(-0.25881905,-0.96592583,-0.96592583,0.25881905,3120.6829,2438.0653)" /> + <use id="rightfoot" xlink:href="#topleft" transform="matrix(-0.60515932,0.14752194,-0.14752194,-0.60515932,2234.5287,2616.7665)" /> + <use id="leftfoot" xlink:href="#topleft" transform="matrix(0.60515932,0.14752194,0.14752194,-0.60515932,253.62404,2616.7665)" /> + <use id="bottomleft" xlink:href="#topleft" transform="rotate(-75,1263.0635,1635.2798)" /> + <use id="midleft" xlink:href="#topleft" transform="rotate(-45,1209.002,1626.9386)" /> +</g> +<g class="structure" id="armchair"> + <path d="M742.781 2172.23s-89.208 93.93-210.767 22.78c-121.56-71.14-124.755-220.09-47.72-318 78.865-100.24 220.899-86.94 221.229-85.38.274 1.3 247.178 196.08 328.597 260.28 16.08 12.68 25.71 20.27 25.71 20.27l-37.68 41.02s-209.519-177.76-290.729-250.45c-9.975 1.38-150.662-67.27-214.983 108.51-24.251 74.65 15.983 145.09 69.889 167.71 91.689 19.32 94.88 1.94 121.523-18.39"/> + <path d="M1738.4 2174.64s91.9 88.75 209.97 16.51c118.07-72.25 115.91-216.85 39.26-313.11-78.47-98.55-217.31-83.5-217.61-81.95-.26 1.29-239.43 197.97-318.3 262.8-15.58 12.8-24.9 20.46-24.9 20.46l37.4 40.26s202.73-184.66 281.29-257.92c9.78 1.23 134.36-50.54 211.78 110.07 28.32 92.64-13.71 144.64-66.18 167.81-89.5 20.38-90.29.61-116.63-19.24"/> + <path d="m899.02 2276.92 680.44-.32 98.56-134.61 51.64 32.46-121.94 160.78-739.1-1.03-125.507-162.22 54.172-39.79 101.735 144.73Z"/> + <path d="m744.143 2173.36 56.05-35.55s-44.914-79.17-102.074-8.6"/> + <path d="M1728.8 2176.06c-7.6 2.16-53.69-30.58-53.69-30.58s43.06-84.48 102.63-21.21c59.57 63.27-52.85 47.65-48.94 51.79Z"/> +</g> +<g id="letters" fill="#fefefe"> + <path id="t" d="M970.081 1776.8c-22.214 0-40.017-6.45-53.41-19.35-13.394-12.9-20.09-30.14-20.09-51.7v-158.27h-75.95v-40.18h75.95v-75.95h44.1v75.95h107.799v40.18H940.681v158.27c0 9.15 2.695 16.58 8.085 22.3 5.39 5.72 12.495 8.57 21.315 8.57h73.499v40.18h-73.499Z"/> + <path id="v" d="M 1205.77 1776.8 L 1112.18 1507.3 L 1157.75 1507.3 L 1235.66 1742.99 L 1311.12 1507.3 L 1357.18 1507.3 L 1263.59 1776.8 L 1205.77 1776.8 L 1205.77 1776.8 Z"/> + <path id="lambda" d="M 1406.18 1776.8 L 1506.14 1511.71 L 1469.88 1419.1 L 1516.92 1419.1 L 1651.18 1776.8 L 1604.14 1776.8 L 1539.95 1601.87 L 1530.64 1571.49 L 1453.71 1776.8 L 1406.18 1776.8 Z"/> +</g> diff --git a/web/tvl/template/default.nix b/web/tvl/template/default.nix new file mode 100644 index 000000000000..50ddc31e73d8 --- /dev/null +++ b/web/tvl/template/default.nix @@ -0,0 +1,52 @@ +{ depot, pkgs, lib, ... }: + +{ + # content of the <title> tag + title + # main part of the page, usually wrapped with <main> +, content + # optional extra html to inject into <head> +, extraHead ? null + # optional extra html to inject into <footer> +, extraFooter ? null + # URL at which static assets are located +, staticUrl ? "https://static.tvl.fyi/${depot.web.static.drvHash}" +}@args: + +let + inherit (pkgs) runCommand lib; + inherit (depot.tools) cheddar; +in + +runCommand "${lib.strings.sanitizeDerivationName title}-index.html" +{ + headerPart = '' + <!DOCTYPE html> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="description" content="The Virus Lounge"> + <link rel="stylesheet" type="text/css" href="${staticUrl}/tvl.css" media="all"> + <link rel="icon" type="image/webp" href="${staticUrl}/favicon.webp"> + <link rel="alternate" type="application/atom+xml" title="Atom Feed" href="https://tvl.fyi/feed.atom"> + <title>${title}</title> + '' + lib.optionalString (args ? extraHead) extraHead + '' + </head> + <body class="light"> + ''; + + inherit content; + + footerPart = '' + <hr> + <footer> + ${depot.web.tvl.footer args} + </footer> + </body> + ''; + + passAsFile = [ "headerPart" "content" "footerPart" ]; +} '' + ${cheddar}/bin/cheddar --about-filter content.md < $contentPath > rendered.html + cat $headerPartPath rendered.html $footerPartPath > $out +'' diff --git a/web/tvl/tvl.dot b/web/tvl/tvl.dot new file mode 100644 index 000000000000..a4ced3d4738d --- /dev/null +++ b/web/tvl/tvl.dot @@ -0,0 +1,171 @@ +digraph tvl { + node [fontname = "JetBrains Mono"]; + overlap = false; + splines = polyline; + + TVL [style="bold" href="http://tvl.fyi"]; + tazjin -> TVL [style="bold"]; + + // people + subgraph { + Irenes [href="https://www.pluralpride.com/"]; + K900 [href="https://0upti.me/"]; + Profpatsch [href="http://profpatsch.de/"]; + adisbladis [href="http://nixos.expert/"]; + amjoseph; + andi [label="andi-" href="https://andreas.rammhold.de/"]; + aurora [href="https://nonegenderleftfox.aventine.se/"]; + benjojo [href="https://benjojo.co.uk/"]; + cynthia [href="https://cynthia.re/"]; + edef [href="https://edef.eu/files/edef.hs"]; + ericvolp [href="https://ericv.me"]; + espes; + eta [href="https://theta.eu.org/"]; + etu [href="https://elis.nu/"]; + ezemtsov [href="https://github.com/ezemtsov"]; + firefly [href="http://firefly.nu/"]; + flokli [href="https://flokli.de/"]; + fzakaria [href="https://fzakaria.com/"]; + ghuntley [href="https://ghuntley.com/"]; + grfn [href="http://gws.fyi"]; + implr [href="https://twitter.com/implring"]; + isomer [href="https://www.lorier.net/"]; + j4m3s [href="https://github.com/j4m3s-s"]; + jusrin [href="https://jusrin.dev/"]; + kn; + lassulus; + leah2 [href="https://leahneukirchen.org/"]; + lukegb [href="https://lukegb.com/"]; + marcusr [href="http://marcus.nordaaker.com/"]; + ncl; + nikky [href="http://nikky.moe/"]; + nyanotech [href="https://twitter.com/nyanotech"]; + seven [href="https://open.spotify.com/user/so7"]; + sterni [href="https://sterni.lv/"]; + tazjin [href="https://tazj.in/"]; + wpcarro [href="https://wpcarro.dev/"]; + raitobezarius [href="https://ryan.lahfa.xyz/"]; + yuuko; + } + + // companies (blue) + subgraph { + node [color="#4285f4" fontcolor="#4285f4"]; + spotify [href="https://www.spotify.com/"]; + google [href="https://www.google.com/"]; + } + + // communities? (red) + subgraph { + node [color="#db4437" fontcolor="#db4437"]; + eve [href="https://www.eveonline.com/"]; + nix [href="https://nixos.org/nix/"]; + tvix [href="https://code.tvl.fyi/tree/tvix"]; + ircv3 [href="https://ircv3.net/"]; + muccc [label="µccc" href="https://muc.ccc.de/"]; + afra [label="AfRA" href="https://afra-berlin.de/"]; + } + + // special + subgraph { + baby [color="pink" fontcolor="pink" href="https://cynthia.re/s/baby"]; + unspecific [color="grey" fontcolor="grey"]; + } + + // primary edges (how did they end up in TVL?) + subgraph { + // Direct edges + nix -> TVL; + tvix -> TVL; + + spotify -> tazjin; + google -> tazjin; + eve -> tazjin; + unspecific -> tazjin; + edef -> tazjin; + ezemtsov -> tazjin; + + // via nix + adisbladis -> nix; + jusrin -> nix; + ghuntley -> nix; + flokli -> nix; + andi -> nix; + Profpatsch -> nix; + lassulus -> nix; + etu -> nix; + + // via tvix + j4m3s -> tvix; + amjoseph -> tvix; + K900 -> tvix; + + // via edef + benjojo -> edef; + espes -> edef; + firefly -> edef; + leah2 -> aurora; + ncl -> edef; + + // via spotify + seven -> spotify; + + // via google + Irenes -> google; + isomer -> google; + lukegb -> google; + wpcarro -> google; + fzakaria -> google; + + // random primary + grfn -> wpcarro; + aurora -> eve; + cynthia -> benjojo; + eta -> unspecific; + ericvolp -> lukegb; + marcusr -> unspecific; + implr -> lukegb; + afra -> unspecific; + nikky -> afra; + kn -> flokli; + sterni -> Profpatsch; + yuuko -> ncl; + raitobezarius -> flokli; + } + + // secondary edges (how are they connected otherwise?) + subgraph { + edge [weight=0 style="dotted" color="grey" arrowhead="none"]; + + // ircv3 + eta -> ircv3; + firefly -> ircv3; + raitobezarius -> ircv3; + + // µccc + leah2 -> muccc; + + // random + leah2 -> edef; + lukegb -> isomer; + eta -> firefly; + cynthia -> firefly; + cynthia -> lukegb; + implr -> google; + nyanotech -> google; + lukegb -> benjojo; + espes -> benjojo; + espes -> aurora; + grfn -> nix; + edef -> nix; + ezemtsov -> nix; + raitobezarius -> nix; + } + + // baby + subgraph { + edge [weight=0 style="dotted" color="pink" arrowhead="none"]; + cynthia -> baby; + eta -> baby; + } +} |
