diff options
Diffstat (limited to 'web/panettone/src/panettone.lisp')
| -rw-r--r-- | web/panettone/src/panettone.lisp | 650 |
1 files changed, 650 insertions, 0 deletions
diff --git a/web/panettone/src/panettone.lisp b/web/panettone/src/panettone.lisp new file mode 100644 index 0000000000..d87ac5ed46 --- /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") + ) |