diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/alcoholic_jwt/.gitignore | 4 | ||||
| -rw-r--r-- | net/alcoholic_jwt/Cargo.lock | 197 | ||||
| -rw-r--r-- | net/alcoholic_jwt/Cargo.toml | 17 | ||||
| -rw-r--r-- | net/alcoholic_jwt/LICENSE | 674 | ||||
| -rw-r--r-- | net/alcoholic_jwt/README.md | 72 | ||||
| -rw-r--r-- | net/alcoholic_jwt/default.nix | 9 | ||||
| -rw-r--r-- | net/alcoholic_jwt/src/lib.rs | 509 | ||||
| -rw-r--r-- | net/alcoholic_jwt/src/tests.rs | 69 | ||||
| -rw-r--r-- | net/crimp/.gitignore | 3 | ||||
| -rw-r--r-- | net/crimp/Cargo.lock | 180 | ||||
| -rw-r--r-- | net/crimp/Cargo.toml | 20 | ||||
| -rw-r--r-- | net/crimp/LICENSE | 674 | ||||
| -rw-r--r-- | net/crimp/README.md | 26 | ||||
| -rw-r--r-- | net/crimp/default.nix | 9 | ||||
| -rw-r--r-- | net/crimp/src/lib.rs | 537 | ||||
| -rw-r--r-- | net/crimp/src/tests.rs | 185 | ||||
| -rw-r--r-- | net/stomp_erl/.gitignore | 10 | ||||
| -rw-r--r-- | net/stomp_erl/Makefile | 8 | ||||
| -rw-r--r-- | net/stomp_erl/README.md | 78 | ||||
| -rw-r--r-- | net/stomp_erl/include/stomp.hrl | 22 | ||||
| -rw-r--r-- | net/stomp_erl/src/stomp.app.src | 7 | ||||
| -rw-r--r-- | net/stomp_erl/src/stomp_app.erl | 11 | ||||
| -rw-r--r-- | net/stomp_erl/src/stomp_sup.erl | 22 | ||||
| -rw-r--r-- | net/stomp_erl/src/stomp_worker.erl | 193 |
24 files changed, 3536 insertions, 0 deletions
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b/net/alcoholic_jwt/Cargo.toml @@ -0,0 +1,17 @@ +[package] +name = "alcoholic_jwt" +description = "Library for validation of RS256 JWTs" +version = "4091.0.0" +authors = ["Vincent Ambo <tazjin@tvl.su>"] +keywords = ["jwt", "token", "jwks"] +categories = ["authentication"] +license = "GPL-3.0-or-later" +homepage = "https://code.tvl.fyi/about/net/alcoholic_jwt" +repository = "https://code.tvl.fyi/depot.git:/net/alcoholic_jwt.git" + +[dependencies] +base64 = "0.13" +openssl = "0.10" +serde = "1.0" +serde_derive = "1.0" +serde_json = "1.0" diff --git a/net/alcoholic_jwt/LICENSE b/net/alcoholic_jwt/LICENSE new file mode 100644 index 0000000000..94a9ed024d --- /dev/null +++ b/net/alcoholic_jwt/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU 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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 +<http://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 +<http://www.gnu.org/philosophy/why-not-lgpl.html>. diff --git a/net/alcoholic_jwt/README.md b/net/alcoholic_jwt/README.md new file mode 100644 index 0000000000..c6da0ab8da --- /dev/null +++ b/net/alcoholic_jwt/README.md @@ -0,0 +1,72 @@ +alcoholic_jwt +============= + +This is a library for **validation** of **RS256** JWTs using keys from +a JWKS. Nothing more, nothing less. + +RS256 is the most commonly used asymmetric signature mechanism for +JWTs, encountered in for example [Google][]'s or [Aprila][]'s APIs. + +The name of the library stems from the potential side-effects of +trying to use the other Rust libraries that are made for similar +purposes. + +## Usage overview + +You are retrieving JWTs from some authentication provider that uses +`RS256` signatures and provides its public keys in [JWKS][] format. + +Example for a token that provides the key ID used for signing in the +[`kid` claim][]: + +```rust +extern crate alcoholic_jwt; + +use alcoholic_jwt::{JWKS, Validation, validate, token_kid}; + +// The function implied here would usually perform an HTTP-GET +// on the JWKS-URL for an authentication provider and deserialize +// the result into the `alcoholic_jwt::JWKS`-struct. +let jwks: JWKS = jwks_fetching_function(); + +let token: String = some_token_fetching_function(); + +// Several types of built-in validations are provided: +let validations = vec![ + Validation::Issuer("auth.test.aprila.no".into()), + Validation::SubjectPresent, +]; + +// If a JWKS contains multiple keys, the correct KID first +// needs to be fetched from the token headers. +let kid = token_kid(&token) + .expect("Failed to decode token headers") + .expect("No 'kid' claim present in token"); + +let jwk = jwks.find(&kid).expect("Specified key not found in set"); + +validate(token, jwk, validations).expect("Token validation has failed!"); +``` + +## Under the hood + +This library aims to only use trustworthy off-the-shelf components to +do the work. Cryptographic operations are provided by the `openssl` +crate, JSON-serialisation is provided by `serde_json`. + +## Contributing + +This project is developed in the [TVL monorepo][depot]. To work on it, +you can either use a local clone of the entire repository or clone +just the `alcoholic_jwt` subtree: + + https://code.tvl.fyi/depot.git:/net/alcoholic_jwt.git + +Please follow the TVL [contribution guidelines][contributing]. + +[Google]: https://www.google.com/ +[Aprila]: https://www.aprila.no/ +[JWKS]: https://tools.ietf.org/html/rfc7517 +[`kid` claim]: https://tools.ietf.org/html/rfc7515#section-4.1.4 +[depot]: https://code.tvl.fyi/ +[contributing]: https://code.tvl.fyi/about/docs/CONTRIBUTING.md diff --git a/net/alcoholic_jwt/default.nix b/net/alcoholic_jwt/default.nix new file mode 100644 index 0000000000..c6b84fb7ab --- /dev/null +++ b/net/alcoholic_jwt/default.nix @@ -0,0 +1,9 @@ +{ depot, pkgs, ... }: + +depot.third_party.naersk.buildPackage { + src = ./.; + buildInputs = with pkgs; [ + openssl + pkgconfig + ]; +} diff --git a/net/alcoholic_jwt/src/lib.rs b/net/alcoholic_jwt/src/lib.rs new file mode 100644 index 0000000000..4a3ece8af1 --- /dev/null +++ b/net/alcoholic_jwt/src/lib.rs @@ -0,0 +1,509 @@ +// Copyright (C) 2019-2022 The TVL Community +// +// alcoholic_jwt 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 <http://www.gnu.org/licenses/>. + +//! Implements a library for for **validation** of **RS256** JWTs +//! using keys from a JWKS. Nothing more, nothing less. +//! +//! The name of the library stems from the potential side-effects of +//! trying to use the other Rust libraries that are made for similar +//! purposes. +//! +//! This library is specifically aimed at developers that consume +//! tokens from services which provide their RSA public keys in +//! [JWKS][] format. +//! +//! ## Usage example (token with `kid`-claim) +//! +//! ```rust +//! # extern crate serde_json; +//! extern crate alcoholic_jwt; +//! +//! use alcoholic_jwt::{JWKS, Validation, validate, token_kid}; +//! +//! # fn some_token_fetching_function() -> &'static str { +//! # "eyJraWQiOiI4ckRxOFB3MEZaY2FvWFdURVZRbzcrVGYyWXpTTDFmQnhOS1BDZWJhYWk0PSIsImFsZyI6IlJTMjU2IiwidHlwIjoiSldUIn0.eyJpc3MiOiJhdXRoLnRlc3QuYXByaWxhLm5vIiwiaWF0IjoxNTM2MDUwNjkzLCJleHAiOjE1MzYwNTQyOTMsInN1YiI6IjQyIiwiZXh0Ijoic21va2V0ZXN0IiwicHJ2IjoiYXJpc3RpIiwic2NwIjoicHJvY2VzcyJ9.gOLsv98109qLkmRK6Dn7WWRHLW7o8W78WZcWvFZoxPLzVO0qvRXXRLYc9h5chpfvcWreLZ4f1cOdvxv31_qnCRSQQPOeQ7r7hj_sPEDzhKjk-q2aoNHaGGJg1vabI--9EFkFsGQfoS7UbMMssS44dgR68XEnKtjn0Vys-Vzbvz_CBSCH6yQhRLik2SU2jR2L7BoFvh4LGZ6EKoQWzm8Z-CHXLGLUs4Hp5aPhF46dGzgAzwlPFW4t9G4DciX1uB4vv1XnfTc5wqJch6ltjKMde1GZwLR757a8dJSBcmGWze3UNE2YH_VLD7NCwH2kkqr3gh8rn7lWKG4AUIYPxsw9CB" +//! # } +//! +//! # fn jwks_fetching_function() -> JWKS { +//! # let jwks_json = "{\"keys\":[{\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"kid\":\"8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=\",\"n\":\"l4UTgk1zr-8C8utt0E57DtBV6qqAPWzVRrIuQS2j0_hp2CviaNl5XzGRDnB8gwk0Hx95YOhJupAe6RNq5ok3fDdxL7DLvppJNRLz3Ag9CsmDLcbXgNEQys33fBJaPw1v3GcaFC4tisU5p-o1f5RfWwvwdBtdBfGiwT1GRvbc5sFx6M4iYjg9uv1lNKW60PqSJW4iDYrfqzZmB0zF1SJ0BL_rnQZ1Wi_UkFmNe9arM8W9tI9T3Ie59HITFuyVSTCt6qQEtSfa1e5PiBaVuV3qoFI2jPBiVZQ6LPGBWEDyz4QtrHLdECPPoTF30NN6TSVwwlRbCuUUrdNdXdjYe2dMFQ\",\"e\":\"DhaD5zC7mzaDvHO192wKT_9sfsVmdy8w8T8C9VG17_b1jG2srd3cmc6Ycw-0blDf53Wrpi9-KGZXKHX6_uIuJK249WhkP7N1SHrTJxO0sUJ8AhK482PLF09Qtu6cUfJqY1X1y1S2vACJZItU4Vjr3YAfiVGQXeA8frAf7Sm4O1CBStCyg6yCcIbGojII0jfh2vSB-GD9ok1F69Nmk-R-bClyqMCV_Oq-5a0gqClVS8pDyGYMgKTww2RHgZaFSUcG13KeLMQsG2UOB2OjSC8FkOXK00NBlAjU3d0Vv-IamaLIszO7FQBY3Oh0uxNOvIE9ofQyCOpB-xIK6V9CTTphxw\"}]}"; +//! # serde_json::from_str(jwks_json).unwrap() +//! # } +//! # +//! // The function implied here would usually perform an HTTP-GET +//! // on the JWKS-URL for an authentication provider and deserialize +//! // the result into the `alcoholic_jwt::JWKS`-struct. +//! let jwks: JWKS = jwks_fetching_function(); +//! +//! let token = some_token_fetching_function(); +//! +//! // Several types of built-in validations are provided: +//! let validations = vec![ +//! Validation::Issuer("auth.test.aprila.no".into()), +//! Validation::SubjectPresent, +//! ]; +//! +//! // If a JWKS contains multiple keys, the correct KID first +//! // needs to be fetched from the token headers. +//! let kid = token_kid(&token) +//! .expect("Failed to decode token headers") +//! .expect("No 'kid' claim present in token"); +//! +//! let jwk = jwks.find(&kid).expect("Specified key not found in set"); +//! +//! validate(token, jwk, validations).expect("Token validation has failed!"); +//! ``` +//! +//! [JWKS]: https://tools.ietf.org/html/rfc7517 + +#[macro_use] +extern crate serde_derive; + +extern crate base64; +extern crate openssl; +extern crate serde; +extern crate serde_json; + +use base64::{Config, DecodeError, URL_SAFE_NO_PAD}; +use openssl::bn::BigNum; +use openssl::error::ErrorStack; +use openssl::hash::MessageDigest; +use openssl::pkey::{PKey, Public}; +use openssl::rsa::Rsa; +use openssl::sign::Verifier; +use serde::de::DeserializeOwned; +use serde_json::Value; +use std::error::Error; +use std::fmt::{self, Display}; +use std::time::{Duration, SystemTime, UNIX_EPOCH}; + +#[cfg(test)] +mod tests; + +/// URL-safe character set without padding that allows trailing bits, +/// which appear in some JWT implementations. +/// +/// Note: The functions on `base64::Config` are not marked `const`, +/// and the constructors are not exported, which is why this is +/// implemented as a function. +fn jwt_forgiving() -> Config { + URL_SAFE_NO_PAD.decode_allow_trailing_bits(true) +} + +/// JWT algorithm used. The only supported algorithm is currently +/// RS256. +#[derive(Clone, Deserialize, Debug)] +enum KeyAlgorithm { + RS256, +} + +/// Type of key contained in a JWT. The only supported key type is +/// currently RSA. +#[derive(Clone, Deserialize, Debug)] +enum KeyType { + RSA, +} + +/// Representation of a single JSON Web Key. See [RFC +/// 7517](https://tools.ietf.org/html/rfc7517#section-4). +#[allow(dead_code)] // kty & alg only constrain deserialisation, but aren't used +#[derive(Clone, Debug, Deserialize)] +pub struct JWK { + kty: KeyType, + alg: Option<KeyAlgorithm>, + kid: Option<String>, + + // Shared modulus + n: String, + + // Public key exponent + e: String, +} + +/// Representation of a set of JSON Web Keys. See [RFC +/// 7517](https://tools.ietf.org/html/rfc7517#section-5). +#[derive(Clone, Debug, Deserialize)] +pub struct JWKS { + // This is a vector instead of some kind of map-like structure + // because key IDs are in fact optional. + // + // Technically having multiple keys with the same KID would not + // violate the JWKS-definition either, but behaviour in that case + // is unspecified. + keys: Vec<JWK>, +} + +impl JWKS { + /// Attempt to find a JWK by its key ID. + pub fn find(&self, kid: &str) -> Option<&JWK> { + self.keys.iter().find(|jwk| jwk.kid == Some(kid.into())) + } +} + +/// Representation of an undecoded JSON Web Token. See [RFC +/// 7519](https://tools.ietf.org/html/rfc7519). +struct JWT<'a>(&'a str); + +/// Representation of a decoded and validated JSON Web Token. +/// +/// Specific claim fields are only decoded internally in the library +/// for validation purposes, while it is generally up to the consumer +/// of the validated JWT what structure they would like to impose. +pub struct ValidJWT { + /// JOSE header of the JSON Web Token. Certain fields are + /// guaranteed to be present in this header, consult section 5 of + /// RFC7519 for more information. + pub headers: Value, + + /// Claims (i.e. primary data) contained in the JSON Web Token. + /// While there are several registered and recommended headers + /// (consult section 4.1 of RFC7519), the presence of no field is + /// guaranteed in these. + pub claims: Value, +} + +/// Possible token claim validations. This enumeration only covers +/// common use-cases, for other types of validations the user is +/// encouraged to inspect the claim set manually. +pub enum Validation { + /// Validate that the issuer ("iss") claim matches a specified + /// value. + Issuer(String), + + /// Validate that the audience ("aud") claim matches a specified + /// value. + Audience(String), + + /// Validate that a subject value is present. + SubjectPresent, + + /// Validate that the expiry time of the token ("exp"-claim) has + /// not yet been reached. + NotExpired, +} + +/// Possible results of a token validation. +#[derive(Debug)] +pub enum ValidationError { + /// Invalid number of token components (not a JWT?) + InvalidComponents, + + /// Token segments had invalid base64-encoding. + InvalidBase64(DecodeError), + + /// Decoding of the provided JWK failed. + InvalidJWK, + + /// Signature validation failed, i.e. because of a non-matching + /// public key. + InvalidSignature, + + /// An OpenSSL operation failed along the way at a point at which + /// a more specific error variant could not be constructed. + OpenSSL(ErrorStack), + + /// JSON decoding into a provided type failed. + JSON(serde_json::Error), + + /// One or more claim validations failed. This variant contains + /// human-readable validation errors. + InvalidClaims(Vec<&'static str>), +} + +impl Error for ValidationError { + fn source(&self) -> Option<&(dyn Error + 'static)> { + match self { + ValidationError::InvalidBase64(e) => Some(e), + ValidationError::OpenSSL(e) => Some(e), + ValidationError::JSON(e) => Some(e), + ValidationError::InvalidComponents + | ValidationError::InvalidJWK + | ValidationError::InvalidSignature + | ValidationError::InvalidClaims(_) => None, + } + } +} + +impl Display for ValidationError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + ValidationError::InvalidComponents => { + f.write_str("Invalid number of token components in JWT") + } + ValidationError::InvalidBase64(_) => f.write_str("Invalid Base64 encoding in JWT"), + ValidationError::InvalidJWK => f.write_str("JWK decoding failed"), + ValidationError::InvalidSignature => f.write_str("JWT signature validation failed"), + ValidationError::OpenSSL(e) => write!(f, "SSL error: {}", e), + ValidationError::JSON(e) => write!(f, "JSON error: {}", e), + ValidationError::InvalidClaims(errs) => { + write!(f, "Invalid claims: {}", errs.join(", ")) + } + } + } +} + +type JWTResult<T> = Result<T, ValidationError>; + +impl From<ErrorStack> for ValidationError { + fn from(err: ErrorStack) -> Self { + ValidationError::OpenSSL(err) + } +} + +impl From<serde_json::Error> for ValidationError { + fn from(err: serde_json::Error) -> Self { + ValidationError::JSON(err) + } +} + +impl From<DecodeError> for ValidationError { + fn from(err: DecodeError) -> Self { + ValidationError::InvalidBase64(err) + } +} + +/// Attempt to extract the `kid`-claim out of a JWT's header claims. +/// +/// This function is normally used when a token provider has multiple +/// public keys in rotation at the same time that could all still have +/// valid tokens issued under them. +/// +/// This is only safe if the key set containing the currently allowed +/// key IDs is fetched from a trusted source. +pub fn token_kid(token: &str) -> JWTResult<Option<String>> { + // Fetch the header component of the JWT by splitting it out and + // dismissing the rest. + let parts: Vec<&str> = token.splitn(2, '.').collect(); + if parts.len() != 2 { + return Err(ValidationError::InvalidComponents); + } + + // Decode only the first part of the token into a specialised + // representation: + #[derive(Deserialize)] + struct KidOnly { + kid: Option<String>, + } + + let kid_only: KidOnly = deserialize_part(parts[0])?; + + Ok(kid_only.kid) +} + +/// Validate the signature of a JSON Web Token and optionally apply +/// claim validations. Signatures are always verified before claims, +/// and if a signature verification passes *all* claim validations are +/// run and returned. +/// +/// If validation succeeds a representation of the token is returned +/// that contains the header and claims as simple JSON values. +/// +/// It is the user's task to ensure that the correct JWK is passed in +/// for validation. +pub fn validate(token: &str, jwk: &JWK, validations: Vec<Validation>) -> JWTResult<ValidJWT> { + let jwt = JWT(token); + let public_key = public_key_from_jwk(&jwk)?; + validate_jwt_signature(&jwt, public_key)?; + + // Split out all three parts of the JWT this time, deserialising + // the first and second as appropriate. + let parts: Vec<&str> = jwt.0.splitn(3, '.').collect(); + if parts.len() != 3 { + // This is unlikely considering that validation has already + // been performed at this point, but better safe than sorry. + return Err(ValidationError::InvalidComponents); + } + + // Perform claim validations before constructing the valid token: + let partial_claims = deserialize_part(parts[1])?; + validate_claims(partial_claims, validations)?; + + let headers = deserialize_part(parts[0])?; + let claims = deserialize_part(parts[1])?; + let valid_jwt = ValidJWT { headers, claims }; + + Ok(valid_jwt) +} + +// Internal implementation +// +// The functions in the following section are not part of the public +// API of this library. + +/// Decode a single key fragment (base64-url encoded integer) to an +/// OpenSSL BigNum. +fn decode_fragment(fragment: &str) -> JWTResult<BigNum> { + let bytes = base64::decode_config(fragment, jwt_forgiving()) + .map_err(|_| ValidationError::InvalidJWK)?; + + BigNum::from_slice(&bytes).map_err(Into::into) +} + +/// Decode an RSA public key from a JWK by constructing it directly +/// from the public RSA key fragments. +fn public_key_from_jwk(jwk: &JWK) -> JWTResult<Rsa<Public>> { + let jwk_n = decode_fragment(&jwk.n)?; + let jwk_e = decode_fragment(&jwk.e)?; + Rsa::from_public_components(jwk_n, jwk_e).map_err(Into::into) +} + +/// Decode a base64-URL encoded string and deserialise the resulting +/// JSON. +fn deserialize_part<T: DeserializeOwned>(part: &str) -> JWTResult<T> { + let json = base64::decode_config(part, jwt_forgiving())?; + serde_json::from_slice(&json).map_err(Into::into) +} + +/// Validate the signature on a JWT using a provided public key. +/// +/// A JWT is made up of three components (headers, claims, signature) +/// - only the first two are part of the signed data. +fn validate_jwt_signature(jwt: &JWT, key: Rsa<Public>) -> JWTResult<()> { + let key = PKey::from_rsa(key)?; + let mut verifier = Verifier::new(MessageDigest::sha256(), &key)?; + + // Split the token from the back to a maximum of two elements. + // There are technically three components using the same separator + // ('.'), but we are interested in the first two together and + // splitting them is unnecessary. + let token_parts: Vec<&str> = jwt.0.rsplitn(2, '.').collect(); + if token_parts.len() != 2 { + return Err(ValidationError::InvalidComponents); + } + + // Second element of the vector will be the signed payload. + let data = token_parts[1]; + + // First element of the vector will be the (encoded) signature. + let sig_b64 = token_parts[0]; + let sig = base64::decode_config(sig_b64, jwt_forgiving())?; + + // Verify signature by inserting the payload data and checking it + // against the decoded signature. + verifier.update(data.as_bytes())?; + + match verifier.verify(&sig)? { + true => Ok(()), + false => Err(ValidationError::InvalidSignature), + } +} + +/// Internal helper enum for PartialClaims that supports single or +/// multiple audiences +#[derive(Deserialize)] +#[serde(untagged)] +enum Audience { + Single(String), + Multi(Vec<String>), +} + +/// Internal helper struct for claims that are relevant for claim +/// validations. +#[derive(Deserialize)] +struct PartialClaims { + aud: Option<Audience>, + iss: Option<String>, + sub: Option<String>, + exp: Option<u64>, +} + +/// Apply a single validation to the claim set of a token. +fn apply_validation(claims: &PartialClaims, validation: Validation) -> Result<(), &'static str> { + match validation { + // Validate that an 'iss' claim is present and matches the + // supplied value. + Validation::Issuer(iss) => match claims.iss { + None => Err("'iss' claim is missing"), + Some(ref claim) => { + if *claim == iss { + Ok(()) + } else { + Err("'iss' claim does not match") + } + } + }, + + // Validate that an 'aud' claim is present and matches the + // supplied value. + Validation::Audience(aud) => match claims.aud { + None => Err("'aud' claim is missing"), + Some(Audience::Single(ref claim)) => { + if *claim == aud { + Ok(()) + } else { + Err("'aud' claim does not match") + } + } + Some(Audience::Multi(ref claims)) => { + if claims.contains(&aud) { + Ok(()) + } else { + Err("'aud' claim does not match") + } + } + }, + + Validation::SubjectPresent => match claims.sub { + Some(_) => Ok(()), + None => Err("'sub' claim is missing"), + }, + + Validation::NotExpired => match claims.exp { + None => Err("'exp' claim is missing"), + Some(exp) => { + // Determine the current timestamp in seconds since + // the UNIX epoch. + let now = SystemTime::now() + .duration_since(UNIX_EPOCH) + // this is an unrecoverable, critical error. There + // aren't many ways this can occur, other than + // system time being set into the far future or + // this library being used in some sort of future + // museum. + .expect("system time is likely incorrect"); + + // Convert the expiry time (which is also in epoch + // seconds) to a duration. + let exp_duration = Duration::from_secs(exp); + + // The token has not expired if the expiry duration is + // larger than (i.e. in the future from) the current + // time. + if exp_duration > now { + Ok(()) + } else { + Err("token has expired") + } + } + }, + } +} + +/// Apply all requested validations to a partial claim set. +fn validate_claims(claims: PartialClaims, validations: Vec<Validation>) -> JWTResult<()> { + let validation_errors: Vec<_> = validations + .into_iter() + .map(|v| apply_validation(&claims, v)) + .filter_map(|result| match result { + Ok(_) => None, + Err(err) => Some(err), + }) + .collect(); + + if validation_errors.is_empty() { + Ok(()) + } else { + Err(ValidationError::InvalidClaims(validation_errors)) + } +} diff --git a/net/alcoholic_jwt/src/tests.rs b/net/alcoholic_jwt/src/tests.rs new file mode 100644 index 0000000000..c264bb5a13 --- /dev/null +++ b/net/alcoholic_jwt/src/tests.rs @@ -0,0 +1,69 @@ +// Copyright (C) 2019-2022 The TVL Community +// +// alcoholic_jwt 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 <http://www.gnu.org/licenses/>. + +use super::*; + +#[test] +fn test_fragment_decoding() { + let fragment = "ngRRjNbXgPW29oNtF0JgsyyfTwPyEL0u_X16s453X2AOc33XGFxVKLEQ7R_TiMenaKcr-tPifYqgps_deyi0XOr4I3SOdOMtAVKDZJCANe--CANOHZb-meIfjKhCHisvT90fm5Apd6qPRVsXsZ7A8pmClZHKM5fwZUkBv8NsPLm2Xy2sGOZIiwP_7z8m3j0abUzniPQsx2b3xcWimB9vRtshFHN1KgPUf1ALQ5xzLfJnlFkCxC7kmOxKC7_NpQ4kJR_DKzKFV_r3HxTqf-jddHcXIrrMcLQXCSyeLQtLaz7whQ4F-EfL42z4XgwPr4ji3sct2gWL13EqlbE5DDxLKQ"; + let bignum = decode_fragment(fragment).expect("Failed to decode fragment"); + + let expected = "19947781743618558124649689124245117083485690334420160711273532766920651190711502679542723943527557680293732686428091794139998732541701457212387600480039297092835433997837314251024513773285252960725418984381935183495143908023024822433135775773958512751261112853383693442999603704969543668619221464654540065497665889289271044207667765128672709218996183649696030570183970367596949687544839066873508106034650634722970893169823917299050098551447676778961773465887890052852528696684907153295689693676910831376066659456592813140662563597179711588277621736656871685099184755908108451080261403193680966083938080206832839445289"; + assert_eq!( + expected, + format!("{}", bignum), + "Decoded fragment should match " + ); +} + +#[test] +fn test_decode_find_jwks() { + let json = "{\"keys\":[{\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"kid\":\"mUjI\\/rIMLLtung35BKZfdbrqtlEAAYJ4JX\\/SKvnLxJc=\",\"n\":\"ngRRjNbXgPW29oNtF0JgsyyfTwPyEL0u_X16s453X2AOc33XGFxVKLEQ7R_TiMenaKcr-tPifYqgps_deyi0XOr4I3SOdOMtAVKDZJCANe--CANOHZb-meIfjKhCHisvT90fm5Apd6qPRVsXsZ7A8pmClZHKM5fwZUkBv8NsPLm2Xy2sGOZIiwP_7z8m3j0abUzniPQsx2b3xcWimB9vRtshFHN1KgPUf1ALQ5xzLfJnlFkCxC7kmOxKC7_NpQ4kJR_DKzKFV_r3HxTqf-jddHcXIrrMcLQXCSyeLQtLaz7whQ4F-EfL42z4XgwPr4ji3sct2gWL13EqlbE5DDxLKQ\",\"e\":\"GK7oLCDbNPAF59LhvyseqcG04hDnPs58qGYolr_HHmaR4lulWJ90ozx6e4Ut363yKG2p9vwvivR5UIC-aLPtqT2qr-OtjhBFzUFVaMGZ6mPCvMKk0AgMYdOHvWTgBSqQtNJTvl1yYLnhcWyoE2fLQhoEbY9qUyCBCEOScXOZRDpnmBtz5I8q5yYMV6a920J24T_IYbxHgkGcEU2SGg-b1cOMD7Rja7vCfV---CQ2pR4leQ0jufzudDoe7z3mziJm-Ihcdrz2Ujy5kPEMdz6R55prJ-ENKrkD_X4u5aSlSRaetwmHS3oAVkjr1JwUNbqnpM-kOqieqHEp8LUmez-Znw\"}]}"; + let jwks: JWKS = serde_json::from_str(json).expect("Failed to decode JWKS"); + let jwk = jwks + .find("mUjI/rIMLLtung35BKZfdbrqtlEAAYJ4JX/SKvnLxJc=") + .expect("Failed to find required JWK"); + + public_key_from_jwk(&jwk).expect("Failed to construct public key from JWK"); +} + +#[test] +fn test_token_kid() { + let jwt = "eyJraWQiOiI4ckRxOFB3MEZaY2FvWFdURVZRbzcrVGYyWXpTTDFmQnhOS1BDZWJhYWk0PSIsImFsZyI6IlJTMjU2IiwidHlwIjoiSldUIn0.eyJpc3MiOiJhdXRoLnRlc3QuYXByaWxhLm5vIiwiaWF0IjoxNTM2MDUwNjkzLCJleHAiOjE1MzYwNTQyOTMsInN1YiI6IjQyIiwiZXh0Ijoic21va2V0ZXN0IiwicHJ2IjoiYXJpc3RpIiwic2NwIjoicHJvY2VzcyJ9.gOLsv98109qLkmRK6Dn7WWRHLW7o8W78WZcWvFZoxPLzVO0qvRXXRLYc9h5chpfvcWreLZ4f1cOdvxv31_qnCRSQQPOeQ7r7hj_sPEDzhKjk-q2aoNHaGGJg1vabI--9EFkFsGQfoS7UbMMssS44dgR68XEnKtjn0Vys-Vzbvz_CBSCH6yQhRLik2SU2jR2L7BoFvh4LGZ6EKoQWzm8Z-CHXLGLUs4Hp5aPhF46dGzgAzwlPFW4t9G4DciX1uB4vv1XnfTc5wqJch6ltjKMde1GZwLR757a8dJSBcmGWze3UNE2YH_VLD7NCwH2kkqr3gh8rn7lWKG4AUIYPxsw9CB"; + + let kid = token_kid(&jwt).expect("Failed to extract token KID"); + assert_eq!( + Some("8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=".into()), + kid, + "Extracted KID did not match expected KID" + ); +} + +#[test] +fn test_validate_jwt() { + let jwks_json = "{\"keys\":[{\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"kid\":\"8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=\",\"n\":\"l4UTgk1zr-8C8utt0E57DtBV6qqAPWzVRrIuQS2j0_hp2CviaNl5XzGRDnB8gwk0Hx95YOhJupAe6RNq5ok3fDdxL7DLvppJNRLz3Ag9CsmDLcbXgNEQys33fBJaPw1v3GcaFC4tisU5p-o1f5RfWwvwdBtdBfGiwT1GRvbc5sFx6M4iYjg9uv1lNKW60PqSJW4iDYrfqzZmB0zF1SJ0BL_rnQZ1Wi_UkFmNe9arM8W9tI9T3Ie59HITFuyVSTCt6qQEtSfa1e5PiBaVuV3qoFI2jPBiVZQ6LPGBWEDyz4QtrHLdECPPoTF30NN6TSVwwlRbCuUUrdNdXdjYe2dMFQ\",\"e\":\"DhaD5zC7mzaDvHO192wKT_9sfsVmdy8w8T8C9VG17_b1jG2srd3cmc6Ycw-0blDf53Wrpi9-KGZXKHX6_uIuJK249WhkP7N1SHrTJxO0sUJ8AhK482PLF09Qtu6cUfJqY1X1y1S2vACJZItU4Vjr3YAfiVGQXeA8frAf7Sm4O1CBStCyg6yCcIbGojII0jfh2vSB-GD9ok1F69Nmk-R-bClyqMCV_Oq-5a0gqClVS8pDyGYMgKTww2RHgZaFSUcG13KeLMQsG2UOB2OjSC8FkOXK00NBlAjU3d0Vv-IamaLIszO7FQBY3Oh0uxNOvIE9ofQyCOpB-xIK6V9CTTphxw\"}]}"; + + let jwks: JWKS = serde_json::from_str(jwks_json).expect("Failed to decode JWKS"); + + let jwk = jwks + .find("8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=") + .expect("Failed to find required JWK"); + + let pkey = public_key_from_jwk(&jwk).expect("Failed to construct public key"); + + let jwt = JWT("eyJraWQiOiI4ckRxOFB3MEZaY2FvWFdURVZRbzcrVGYyWXpTTDFmQnhOS1BDZWJhYWk0PSIsImFsZyI6IlJTMjU2IiwidHlwIjoiSldUIn0.eyJpc3MiOiJhdXRoLnRlc3QuYXByaWxhLm5vIiwiaWF0IjoxNTM2MDUwNjkzLCJleHAiOjE1MzYwNTQyOTMsInN1YiI6IjQyIiwiZXh0Ijoic21va2V0ZXN0IiwicHJ2IjoiYXJpc3RpIiwic2NwIjoicHJvY2VzcyJ9.gOLsv98109qLkmRK6Dn7WWRHLW7o8W78WZcWvFZoxPLzVO0qvRXXRLYc9h5chpfvcWreLZ4f1cOdvxv31_qnCRSQQPOeQ7r7hj_sPEDzhKjk-q2aoNHaGGJg1vabI--9EFkFsGQfoS7UbMMssS44dgR68XEnKtjn0Vys-Vzbvz_CBSCH6yQhRLik2SU2jR2L7BoFvh4LGZ6EKoQWzm8Z-CHXLGLUs4Hp5aPhF46dGzgAzwlPFW4t9G4DciX1uB4vv1XnfTc5wqJch6ltjKMde1GZwLR757a8dJSBcmGWze3UNE2YH_VLD7NCwH2kkqr3gh8rn7lWKG4AUIYPxsw9CB".into()); + + validate_jwt_signature(&jwt, pkey).expect("Validation failed unexpectedly"); +} diff --git a/net/crimp/.gitignore b/net/crimp/.gitignore new file mode 100644 index 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0000000000..94a9ed024d --- /dev/null +++ b/net/crimp/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. 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 <http://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 +<http://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 +<http://www.gnu.org/philosophy/why-not-lgpl.html>. diff --git a/net/crimp/README.md b/net/crimp/README.md new file mode 100644 index 0000000000..65a9d4293b --- /dev/null +++ b/net/crimp/README.md @@ -0,0 +1,26 @@ +crimp +===== + +[](https://crates.io/crates/crimp) +[](https://docs.rs/crimp) + +Crimp is an HTTP client interface on top of the [Rust bindings][] to +cURL. + +The documentation for this crate is primarily in the [module +documentation][] + +------- + +This project is developed in the [TVL monorepo][depot]. To work on it, +you can either use a local clone of the entire repository or clone +just the `crimp` subtree: + + https://code.tvl.fyi/depot.git:/net/crimp.git + +Please follow the TVL [contribution guidelines][contributing]. + +[Rust bindings]: https://docs.rs/curl +[module documentation]: https://docs.rs/crimp +[depot]: https://code.tvl.fyi/ +[contributing]: https://code.tvl.fyi/about/docs/CONTRIBUTING.md diff --git a/net/crimp/default.nix b/net/crimp/default.nix new file mode 100644 index 0000000000..c6b84fb7ab --- /dev/null +++ b/net/crimp/default.nix @@ -0,0 +1,9 @@ +{ depot, pkgs, ... }: + +depot.third_party.naersk.buildPackage { + src = ./.; + buildInputs = with pkgs; [ + openssl + pkgconfig + ]; +} diff --git a/net/crimp/src/lib.rs b/net/crimp/src/lib.rs new file mode 100644 index 0000000000..4dd4d6c31b --- /dev/null +++ b/net/crimp/src/lib.rs @@ -0,0 +1,537 @@ +// crimp - Higher-level Rust cURL API +// +// Copyright (C) 2019 Vincent Ambo +// +// 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 <http://www.gnu.org/licenses/>. + +//! # crimp +//! +//! This library provides a simplified API over the [cURL Rust +//! bindings][] that resemble that of higher-level libraries such as +//! [reqwest][]. All calls are synchronous. +//! +//! `crimp` is intended to be used in situations where HTTP client +//! functionality is desired without adding a significant number of +//! dependencies or sacrificing too much usability. +//! +//! Using `crimp` to make HTTP requests is done using a simple +//! builder-pattern style API. For example, to make a `GET`-request +//! and print the result to `stdout`: +//! +//! ```rust +//! use crimp::Request; +//! +//! let response = Request::get("http://httpbin.org/get") +//! .user_agent("crimp test suite") +//! .unwrap() +//! .send() +//! .unwrap() +//! .as_string() +//! .unwrap(); +//! +//! println!("Status: {}\nBody: {}", response.status, response.body); +//! # assert_eq!(response.status, 200); +//! ``` +//! +//! If a feature from the underlying cURL library is missing, the +//! `Request::raw` method can be used as an escape hatch to deal with +//! the handle directly. Should you find yourself doing this, please +//! [file an issue][]. +//! +//! `crimp` does not currently expose functionality for re-using a +//! cURL Easy handle, meaning that keep-alive of HTTP connections and +//! the like is not supported. +//! +//! ## Cargo features +//! +//! All optional features are enabled by default. +//! +//! * `json`: Adds `Request::json` and `Response::as_json` methods which can be used for convenient +//! serialisation of request/response bodies using `serde_json`. This feature adds a dependency on +//! the `serde` and `serde_json` crates. +//! +//! ## Initialisation +//! +//! It is recommended to call the underlying `curl::init` method +//! (re-exported as `crimp::init`) when launching your application to +//! initialise the cURL library. This is not required, but will +//! otherwise occur the first time a request is made. +//! +//! [cURL Rust bindings]: https://docs.rs/curl +//! [reqwest]: https://docs.rs/reqwest +//! [file an issue]: https://github.com/tazjin/crimp/issues + +extern crate curl; + +#[cfg(feature = "json")] +extern crate serde; +#[cfg(feature = "json")] +extern crate serde_json; + +pub use curl::init; + +use curl::easy::{Auth, Easy, Form, List, ReadError, Transfer, WriteError}; +use std::collections::HashMap; +use std::io::Write; +use std::path::Path; +use std::string::{FromUtf8Error, ToString}; +use std::time::Duration; + +#[cfg(feature = "json")] +use serde::de::DeserializeOwned; +#[cfg(feature = "json")] +use serde::Serialize; + +#[cfg(test)] +mod tests; + +/// HTTP method to use for the request. +enum Method { + Get, + Post, + Put, + Patch, + Delete, +} + +/// Certificate types for client-certificate key pairs. +pub enum CertType { + P12, + PEM, + DER, +} + +/// Builder structure for an HTTP request. +/// +/// This is the primary API-type in `crimp`. After creating a new +/// request its parameters are modified using the various builder +/// methods until it is consumed by `send()`. +pub struct Request<'a> { + url: &'a str, + method: Method, + handle: Easy, + headers: List, + body: Body<'a>, +} + +enum Body<'a> { + NoBody, + Form(Form), + + Bytes { + content_type: &'a str, + data: &'a [u8], + }, + + #[cfg(feature = "json")] + Json(Vec<u8>), +} + +/// HTTP responses structure containing response data and headers. +/// +/// By default the `send()` function of the `Request` structure will +/// return a `Response<Vec<u8>>`. Convenience helpers exist for +/// decoding a string via `Response::as_string` or to a +/// `serde`-compatible type with `Response::as_json` (if the +/// `json`-feature is enabled). +#[derive(Debug, PartialEq)] +pub struct Response<T> { + /// HTTP status code of the response. + pub status: u32, + + /// HTTP headers returned from the remote. + pub headers: HashMap<String, String>, + + /// Body data from the HTTP response. + pub body: T, +} + +impl<'a> Request<'a> { + /// Initiate an HTTP request with the given method and URL. + fn new(method: Method, url: &'a str) -> Self { + Request { + url, + method, + handle: Easy::new(), + headers: List::new(), + body: Body::NoBody, + } + } + + /// Initiate a GET request with the given URL. + pub fn get(url: &'a str) -> Self { + Request::new(Method::Get, url) + } + + /// Initiate a POST request with the given URL. + pub fn post(url: &'a str) -> Self { + Request::new(Method::Post, url) + } + + /// Initiate a PUT request with the given URL. + pub fn put(url: &'a str) -> Self { + Request::new(Method::Put, url) + } + + /// Initiate a PATCH request with the given URL. + pub fn patch(url: &'a str) -> Self { + Request::new(Method::Patch, url) + } + + /// Initiate a DELETE request with the given URL. + pub fn delete(url: &'a str) -> Self { + Request::new(Method::Delete, url) + } + + /// Add an HTTP header to a request. + pub fn header(mut self, k: &str, v: &str) -> Result<Self, curl::Error> { + self.headers.append(&format!("{}: {}", k, v))?; + Ok(self) + } + + /// Set the `User-Agent` for this request. By default this will be + /// set to cURL's standard user agent. + pub fn user_agent(mut self, agent: &str) -> Result<Self, curl::Error> { + self.handle.useragent(agent)?; + Ok(self) + } + + /// Set the `Authorization` header to a `Bearer` value with the + /// supplied token. + pub fn bearer_auth(mut self, token: &str) -> Result<Self, curl::Error> { + self.headers + .append(&format!("Authorization: Bearer {}", token))?; + Ok(self) + } + + /// Set the `Authorization` header to a basic authentication value + /// from the supplied username and password. + pub fn basic_auth(mut self, username: &str, password: &str) -> Result<Self, curl::Error> { + let mut auth = Auth::new(); + auth.basic(true); + self.handle.username(username)?; + self.handle.password(password)?; + self.handle.http_auth(&auth)?; + Ok(self) + } + + /// Configure a TLS client certificate on the request. + /// + /// Depending on whether the certificate file contains the private + /// key or not, calling `tls_client_key` may be required in + /// addition. + /// + /// Consult the documentation for the `ssl_cert` and `ssl_key` + /// functions in `curl::easy::Easy2` for details on supported + /// formats and defaults. + pub fn tls_client_cert<P: AsRef<Path>>( + mut self, + cert_type: CertType, + cert: P, + ) -> Result<Self, curl::Error> { + self.handle.ssl_cert(cert)?; + self.handle.ssl_cert_type(match cert_type { + CertType::P12 => "P12", + CertType::PEM => "PEM", + CertType::DER => "DER", + })?; + + Ok(self) + } + + /// Configure a TLS client certificate key on the request. + /// + /// Note that this does **not** need to be called again for + /// PKCS12-encoded key pairs which are set via `tls_client_cert`. + /// + /// Currently only PEM-encoded key files are supported. + pub fn tls_client_key<P: AsRef<Path>>(mut self, key: P) -> Result<Self, curl::Error> { + self.handle.ssl_key(key)?; + Ok(self) + } + + /// Configure an encryption password for a TLS client certificate + /// key on the request. + /// + /// This is required in case of an encrypted private key that + /// should be used. + pub fn tls_key_password(mut self, password: &str) -> Result<Self, curl::Error> { + self.handle.key_password(password)?; + Ok(self) + } + + /// Configure a timeout for the request after which the request + /// will be aborted. + pub fn timeout(mut self, timeout: Duration) -> Result<Self, curl::Error> { + self.handle.timeout(timeout)?; + Ok(self) + } + + /// Set custom configuration on the cURL `Easy` handle. + /// + /// This function can be considered an "escape-hatch" from the + /// high-level API which lets users access the internal + /// `curl::easy::Easy` handle and configure options on it + /// directly. + /// + /// ``` + /// # use crimp::Request; + /// let response = Request::get("https://httpbin.org/get") + /// .with_handle(|mut handle| handle.referer("Example-Referer")) + /// .unwrap() + /// .send() + /// .unwrap(); + /// # + /// # assert!(response.is_success()); + /// ``` + pub fn with_handle<F>(mut self, function: F) -> Result<Self, curl::Error> + where + F: FnOnce(&mut Easy) -> Result<(), curl::Error>, + { + function(&mut self.handle)?; + Ok(self) + } + + /// Add a byte-array body to a request using the specified + /// `Content-Type`. + pub fn body(mut self, content_type: &'a str, data: &'a [u8]) -> Self { + self.body = Body::Bytes { data, content_type }; + self + } + + /// Add a form-encoded body to a request using the `curl::Form` + /// type. + /// + /// ```rust + /// # extern crate curl; + /// # extern crate serde_json; + /// # use crimp::*; + /// # use serde_json::{Value, json}; + /// use curl::easy::Form; + /// + /// let mut form = Form::new(); + /// form.part("some-name") + /// .contents("some-data".as_bytes()) + /// .add() + /// .unwrap(); + /// + /// let response = Request::post("https://httpbin.org/post") + /// .user_agent("crimp test suite") + /// .unwrap() + /// .form(form) + /// .send() + /// .unwrap(); + /// # + /// # assert_eq!(200, response.status, "form POST should succeed"); + /// # assert_eq!( + /// # response.as_json::<Value>().unwrap().body.get("form").unwrap(), + /// # &json!({"some-name": "some-data"}), + /// # "posted form data should match", + /// # ); + /// ``` + /// + /// See the documentation of `curl::easy::Form` for details on how + /// to construct a form body. + pub fn form(mut self, form: Form) -> Self { + self.body = Body::Form(form); + self + } + + /// Add a JSON-encoded body from a serializable type. + #[cfg(feature = "json")] + pub fn json<T: Serialize>(mut self, body: &T) -> Result<Self, serde_json::Error> { + let json = serde_json::to_vec(body)?; + self.body = Body::Json(json); + Ok(self) + } + + /// Send the HTTP request and return a response structure + /// containing the raw body. + pub fn send(mut self) -> Result<Response<Vec<u8>>, curl::Error> { + // Configure request basics: + self.handle.url(self.url)?; + + match self.method { + Method::Get => self.handle.get(true)?, + Method::Post => self.handle.post(true)?, + Method::Put => self.handle.put(true)?, + Method::Patch => self.handle.custom_request("PATCH")?, + Method::Delete => self.handle.custom_request("DELETE")?, + } + + // Create structures in which to store the response data: + let mut headers = HashMap::new(); + let mut body = vec![]; + + // Submit a form value to cURL if it is set and proceed + // pretending that there is no body, as the handling of this + // type of body happens under-the-hood. + if let Body::Form(form) = self.body { + self.handle.httppost(form)?; + self.body = Body::NoBody; + } + + // Optionally set content type if a body payload is configured + // and configure the expected body size (or form payload). + match self.body { + Body::Bytes { content_type, data } => { + self.handle.post_field_size(data.len() as u64)?; + self.headers + .append(&format!("Content-Type: {}", content_type))?; + } + + #[cfg(feature = "json")] + Body::Json(ref data) => { + self.handle.post_field_size(data.len() as u64)?; + self.headers.append("Content-Type: application/json")?; + } + + // Do not set content-type header at all if there is no + // body, or if the form handler was invoked above. + _ => (), + }; + + // Configure headers on the request: + self.handle.http_headers(self.headers)?; + + { + // Take a scoped transfer from the Easy handle. This makes it + // possible to write data into the above local buffers without + // fighting the borrow-checker: + let mut transfer = self.handle.transfer(); + + // Write the payload if it exists: + match self.body { + Body::Bytes { data, .. } => chunked_read_function(&mut transfer, data)?, + + #[cfg(feature = "json")] + Body::Json(ref json) => chunked_read_function(&mut transfer, json)?, + + // Do nothing if there is no body or if the body is a + // form. + _ => (), + }; + + // Read one header per invocation. Request processing is + // terminated if any header is malformed: + transfer.header_function(|header| { + // Headers are expected to be valid UTF-8 data. If they + // are not, the conversion is lossy. + // + // Technically it is legal for HTTP requests to use + // different encodings, but we don't interface with such + // services for hygienic reasons. + let header = String::from_utf8_lossy(header); + let split = header.splitn(2, ':').collect::<Vec<_>>(); + + // "Malformed" headers are skipped. In most cases this + // will only be the HTTP version statement. + if split.len() != 2 { + return true; + } + + headers.insert(split[0].trim().to_string(), split[1].trim().to_string()); + true + })?; + + // Read the body to the allocated buffer. + transfer.write_function(|data| { + let len = data.len(); + body.write_all(data) + .map(|_| len) + .map_err(|_| WriteError::Pause) + })?; + + transfer.perform()?; + } + + Ok(Response { + status: self.handle.response_code()?, + headers, + body, + }) + } +} + +/// Provide a data chunk potentially larger than cURL's initial write +/// buffer to the data reading callback by tracking the offset off +/// already written data. +/// +/// As we manually set the expected upload size, cURL will call the +/// read callback repeatedly until it has all the data it needs. +fn chunked_read_function<'easy, 'data>( + transfer: &mut Transfer<'easy, 'data>, + data: &'data [u8], +) -> Result<(), curl::Error> { + let mut data = data; + + transfer.read_function(move |mut into| { + let written = into.write(data).map_err(|_| ReadError::Abort)?; + + data = &data[written..]; + + Ok(written) + }) +} + +impl<T> Response<T> { + /// Check whether the status code of this HTTP response is a + /// success (i.e. in the 200-299 range). + pub fn is_success(&self) -> bool { + self.status >= 200 && self.status < 300 + } + + /// Check whether a request succeeded using `Request::is_success` + /// and let users provide a closure that creates a custom error + /// from the request if it did not. + /// + /// This function exists for convenience to avoid having to write + /// repetitive `if !response.is_success() { ... }` blocks. + pub fn error_for_status<F, E>(self, closure: F) -> Result<Self, E> + where + F: FnOnce(Self) -> E, + { + if !self.is_success() { + return Err(closure(self)); + } + + Ok(self) + } +} + +impl Response<Vec<u8>> { + /// Attempt to parse the HTTP response body as a UTF-8 encoded + /// string. + pub fn as_string(self) -> Result<Response<String>, FromUtf8Error> { + let body = String::from_utf8(self.body)?; + + Ok(Response { + body, + status: self.status, + headers: self.headers, + }) + } + + /// Attempt to deserialize the HTTP response body from JSON. + #[cfg(feature = "json")] + pub fn as_json<T: DeserializeOwned>(self) -> Result<Response<T>, serde_json::Error> { + let deserialized = serde_json::from_slice(&self.body)?; + + Ok(Response { + body: deserialized, + status: self.status, + headers: self.headers, + }) + } +} diff --git a/net/crimp/src/tests.rs b/net/crimp/src/tests.rs new file mode 100644 index 0000000000..e8e9223ce8 --- /dev/null +++ b/net/crimp/src/tests.rs @@ -0,0 +1,185 @@ +// All tests expect an httpbin instance to be available at +// `http://localhost:4662`. +// +// This is easily spun up using Docker by running: +// +// docker run --rm -p 4662:80 kennethreitz/httpbin + +use super::*; +use serde_json::{json, Value}; + +// These tests check whether the correct HTTP method is used in the +// requests. + +#[test] +fn test_http_get() { + let resp = Request::get("http://127.0.0.1:4662/get") + .send() + .expect("failed to send request"); + + assert!(resp.is_success(), "request should have succeeded"); +} + +#[test] +fn test_http_delete() { + let resp = Request::delete("http://127.0.0.1:4662/delete") + .send() + .expect("failed to send request"); + + assert_eq!(200, resp.status, "response status should be 200 OK"); +} + +#[test] +fn test_http_put() { + let resp = Request::put("http://127.0.0.1:4662/put") + .send() + .expect("failed to send request"); + + assert_eq!(200, resp.status, "response status should be 200 OK"); +} + +#[test] +fn test_http_patch() { + let resp = Request::patch("http://127.0.0.1:4662/patch") + .send() + .expect("failed to send request"); + + assert_eq!(200, resp.status, "response status should be 200 OK"); +} + +// These tests perform various requests with different body payloads +// and verify that those were received correctly by the remote side. + +#[test] +fn test_http_post() { + let body = "test body"; + let response = Request::post("http://127.0.0.1:4662/post") + .user_agent("crimp test suite") + .expect("failed to set user-agent") + .timeout(Duration::from_secs(5)) + .expect("failed to set request timeout") + .body("text/plain", &body.as_bytes()) + .send() + .expect("failed to send request") + .as_json::<Value>() + .expect("failed to deserialize response"); + + let data = response.body; + + assert_eq!(200, response.status, "response status should be 200 OK"); + + assert_eq!( + data.get("data").unwrap(), + &json!("test body"), + "test body should have been POSTed" + ); + + assert_eq!( + data.get("headers").unwrap().get("Content-Type").unwrap(), + &json!("text/plain"), + "Content-Type should be `text/plain`", + ); +} + +#[cfg(feature = "json")] +#[test] +fn test_http_post_json() { + let body = json!({ + "purpose": "testing!" + }); + + let response = Request::post("http://127.0.0.1:4662/post") + .user_agent("crimp test suite") + .expect("failed to set user-agent") + .timeout(Duration::from_secs(5)) + .expect("failed to set request timeout") + .json(&body) + .expect("request serialization failed") + .send() + .expect("failed to send request") + .as_json::<Value>() + .expect("failed to deserialize response"); + + let data = response.body; + + assert_eq!(200, response.status, "response status should be 200 OK"); + + assert_eq!( + data.get("json").unwrap(), + &body, + "test body should have been POSTed" + ); + + assert_eq!( + data.get("headers").unwrap().get("Content-Type").unwrap(), + &json!("application/json"), + "Content-Type should be `application/json`", + ); +} + +// Tests for different authentication methods that are supported +// out-of-the-box: + +#[test] +fn test_bearer_auth() { + let response = Request::get("http://127.0.0.1:4662/bearer") + .bearer_auth("some-token") + .expect("failed to set auth header") + .send() + .expect("failed to send request"); + + assert!(response.is_success(), "authorized request should succeed"); +} + +#[test] +fn test_basic_auth() { + let request = Request::get("http://127.0.0.1:4662/basic-auth/alan_watts/oneness"); + + let response = request + .basic_auth("alan_watts", "oneness") + .expect("failed to set auth header") + .send() + .expect("failed to send request"); + + assert!(response.is_success(), "authorized request should succeed"); +} + +#[test] +fn test_large_body() { + // By default cURL buffers seem to be 2^16 bytes in size. The test + // size is therefore 2^16+1. + const BODY_SIZE: usize = 65537; + + let resp = Request::post("http://127.0.0.1:4662/post") + .body("application/octet-stream", &[0; BODY_SIZE]) + .send() + .expect("sending request") + .as_json::<Value>() + .expect("JSON deserialisation"); + + // httpbin returns the uploaded data as a string in the `data` + // field. + let data = resp.body.get("data").unwrap().as_str().unwrap(); + + assert_eq!( + BODY_SIZE, + data.len(), + "uploaded data length should be correct" + ); +} + +// Tests for various other features. + +#[test] +fn test_error_for_status() { + let response = Request::get("http://127.0.0.1:4662/patch") + .send() + .expect("failed to send request") + .error_for_status(|resp| format!("Response error code: {}", resp.status)); + + assert_eq!( + Err("Response error code: 405".into()), + response, + "returned error should be converted into Result::Err" + ); +} diff --git a/net/stomp_erl/.gitignore b/net/stomp_erl/.gitignore new file mode 100644 index 0000000000..8e46d5a07f --- /dev/null +++ b/net/stomp_erl/.gitignore @@ -0,0 +1,10 @@ +.eunit +deps +*.o +*.beam +*.plt +erl_crash.dump +ebin +rel/example_project +.concrete/DEV_MODE +.rebar diff --git a/net/stomp_erl/Makefile b/net/stomp_erl/Makefile new file mode 100644 index 0000000000..b3bc54673d --- /dev/null +++ b/net/stomp_erl/Makefile @@ -0,0 +1,8 @@ +PROJECT = stomp +PROJECT_DESCRIPTION = STOMP client for Erlang +PROJECT_VERSION = 0.1.0 + +# Whitespace to be used when creating files from templates. +SP = 4 + +include erlang.mk diff --git a/net/stomp_erl/README.md b/net/stomp_erl/README.md new file mode 100644 index 0000000000..21c95a11a2 --- /dev/null +++ b/net/stomp_erl/README.md @@ -0,0 +1,78 @@ +STOMP on Erlang +=============== + +`stomp.erl` is a simple Erlang client for the [STOMP protocol][] in version 1.2. + +Currently only subscribing to queues is supported. + +It provides an application called `stomp` which takes configuration of the form: + +```erlang +[{stomp, #{host => "stomp-server.somedomain.sexy", % required + port => 61613, % optional + login => <<"someuser">>, % optional + passcode => <<"hunter2>>, % optional + }}]. +``` + +## Types + +The following types are used in `stomp.erl`, you can include them from +`stomp.hrl`: + +```erlang +%% Client ack modes, refer to the STOMP protocol documentation +-type ack_mode() :: client | client_individual | auto. + +%% Subscriptions are enumerated from 0 +-type sub_id() :: integer(). + +%% Message IDs (for acknowledgements) are simple strings. They are +%% extracted from the 'ack' field of the header in client or client-individual +%% mode, and from the 'message-id' field in auto mode. +-type message_id() :: binary(). + +%% A STOMP message as received from a queue subscription +-record(stomp_msg, { headers :: #{ binary() => binary() }, + body :: binary() }. +-type stomp_msg() :: #stomp_msg{}. +``` + +Once the application starts it will register a process under the name +`stomp_worker` and expose the following API: + +## Subscribing to a queue + +```erlang +%% Subscribe to a destination, receive the subscription ID +-spec subscribe(binary(), % Destination (e.g. <<"/queue/lizards">>) + ack_mode(), % Client-acknowledgement mode + -> {ok, sub_id()}. +``` + +This synchronous call subscribes to a message queue. The `stomp_worker` will +link itself to the caller and forward received messages as +`{msg, sub_id(), stomp_msg()}`. + +Depending on the acknowledgement mode specified on connecting, the subscriber +may have to acknowledge receival of messages. + +## Acknowledging messages + +```erlang +%% Acknowledge a message ID. +%% This is not required in auto mode. In client mode it will acknowledge the +%% received messages up to the ID specified. In client-individual mode every +%% single message has to be acknowledged. +-spec ack(sub_id(), message_id()) -> ok. + +%% Explicitly "unacknowledge" a message +-spec nack(sub_id(), message_id()) -> ok. +``` + +Both of these calls are asynchronous and will return immediately. Note that in +the case of the `stomp_worker` crashing before a message acknowledgement is +handled, the message *may* be delivered again. Your consumer needs to be able to +handle this. + +[STOMP protocol]: https://stomp.github.io/stomp-specification-1.2.html diff --git a/net/stomp_erl/include/stomp.hrl b/net/stomp_erl/include/stomp.hrl new file mode 100644 index 0000000000..30c933b563 --- /dev/null +++ b/net/stomp_erl/include/stomp.hrl @@ -0,0 +1,22 @@ +%% Client ack modes, refer to the STOMP protocol documentation +-type ack_mode() :: client | client_individual | auto. + +%% Subscriptions are enumerated from 0 +-type sub_id() :: integer(). + +%% Message IDs (for acknowledgements) are simple strings. They are +%% extracted from the 'ack' field of the header in client or client-individual +%% mode, and from the 'message-id' field in auto mode. +-type message_id() :: binary(). + +%% A destination can be a queue, or something else. +%% Example: <<"/queue/lizards">> +-type destination() :: binary(). + +%% A STOMP message as received from a queue subscription +-record(stomp_msg, { headers :: #{ binary() => binary() }, + body :: binary() }). +-type stomp_msg() :: #stomp_msg{}. + +%% STOMP frame components +-type headers() :: #{binary() => binary()}. diff --git a/net/stomp_erl/src/stomp.app.src b/net/stomp_erl/src/stomp.app.src new file mode 100644 index 0000000000..baf0e271d1 --- /dev/null +++ b/net/stomp_erl/src/stomp.app.src @@ -0,0 +1,7 @@ +{application, stomp, [{description, "STOMP client for Erlang"}, + {vsn, "0.1.0"}, + {modules, [stomp_app, stomp_sup, stomp_worker]}, + {registered, [stomp_worker]}, + {env, []}, + {applications, [kernel, stdlib]}, + {mod, {stomp_app, []}}]}. diff --git a/net/stomp_erl/src/stomp_app.erl b/net/stomp_erl/src/stomp_app.erl new file mode 100644 index 0000000000..2ba3e69f99 --- /dev/null +++ b/net/stomp_erl/src/stomp_app.erl @@ -0,0 +1,11 @@ +-module(stomp_app). +-behaviour(application). + +-export([start/2]). +-export([stop/1]). + +start(_Type, _Args) -> + stomp_sup:start_link(). + +stop(_State) -> + ok. diff --git a/net/stomp_erl/src/stomp_sup.erl b/net/stomp_erl/src/stomp_sup.erl new file mode 100644 index 0000000000..3a298bc9bf --- /dev/null +++ b/net/stomp_erl/src/stomp_sup.erl @@ -0,0 +1,22 @@ +-module(stomp_sup). +-behaviour(supervisor). + +-export([start_link/0]). +-export([init/1]). + +start_link() -> + supervisor:start_link({local, ?MODULE}, ?MODULE, []). + +init([]) -> + Procs = [stomp_spec()], + {ok, {{one_for_one, 1, 5}, Procs}}. + +%% Private + +stomp_spec() -> + #{id => stomp_proc, + start => {stomp_worker, start_link, []}, + restart => permanent, + shutdown => 5000, + type => worker, + module => [stomp_worker]}. diff --git a/net/stomp_erl/src/stomp_worker.erl b/net/stomp_erl/src/stomp_worker.erl new file mode 100644 index 0000000000..80981d37ab --- /dev/null +++ b/net/stomp_erl/src/stomp_worker.erl @@ -0,0 +1,193 @@ +-module(stomp_worker). +-behaviour(gen_server). + +%% API. +-export([start_link/0]). + +%% gen_server. +-export([init/1]). +-export([handle_call/3]). +-export([handle_cast/2]). +-export([handle_info/2]). +-export([terminate/2]). +-export([code_change/3]). + +%% Testing +-compile(export_all). + +-include("stomp.hrl"). + +%% State of a stomp_worker +-record(state, {connection :: port(), + next_sub :: sub_id(), + subscriptions :: #{ destination() => sub_id() }, + subscribers :: #{ destination() => pid() } + }). +-type state() :: #state{}. + +%% API implementation + +-spec start_link() -> {ok, pid()}. +start_link() -> + {ok, Pid} = gen_server:start_link(?MODULE, [], []), + register(?MODULE, Pid), + {ok, Pid}. + +%% gen_server implementation + +-spec init(any()) -> {ok, state()}. +init(_Args) -> + %% Fetch configuration from app config + {ok, Host} = application:get_env(stomp, host), + Port = application:get_env(stomp, port, 61613), + Login = application:get_env(stomp, login), + Pass = application:get_env(stomp, passcode), + + %% Catch exit signals from linked processes (subscribers dying) + process_flag(trap_exit, true), + + %% Establish connection + {ok, Conn} = connect(Host, Port, Login, Pass), + + {ok, #state{connection = Conn, + next_sub = 0, + subscriptions = #{}, + subscribers = #{}}}. + +%% Handle subscription calls +handle_call({subscribe, Dest, Ack}, From, State) -> + %% Subscribe to new destination + SubId = State#state.next_sub, + ok = subscribe(State#state.connection, SubId, Dest, Ack), + + %% Add subscription and subscriber to state + Subscriptions = maps:put(SubId, Dest, State#state.subscriptions), + Subscribers = maps:put(SubId, From, State#state.subscribers), + NextSub = SubId + 1, + NewState = State#state{subscriptions = Subscriptions, + subscribers = Subscribers, + next_sub = NextSub }, + + {reply, {ok, SubId}, NewState}; +handle_call(_Req, _From, State) -> + {reply, ignored, State}. + +handle_info({tcp, Conn, Frame}, State) when Conn =:= State#state.connection -> + handle_frame(Frame, State); +handle_info(_Msg, State) -> + {noreply, State}. + +%% Unused gen_server callbacks + +handle_cast(_Msg, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%% Private functions + +-spec connect(list(), integer(), any(), any()) -> {ok, port()}. +connect(Host, Port, Login, Pass) -> + %% STOMP CONNECT frame + Connect = connect_frame(Host, Login, Pass), + + %% TODO: Configurable buffer size + %% Frames larger than the user-level buffer will be truncated, so it should + %% never be smaller than the largest expected messages. + {ok, Socket} = gen_tcp:connect(Host, Port, [binary, + {packet, line}, + {line_delimiter, $\0}, + {buffer, 262144}]), + + ok = gen_tcp:send(Socket, Connect), + {ok, Socket}. + +-spec subscribe(port(), sub_id(), destination(), ack_mode()) -> ok. +subscribe(Socket, Id, Queue, Ack) -> + {ok, SubscribeFrame} = subscribe_frame(Id, Queue, Ack), + gen_tcp:send(Socket, SubscribeFrame). + +%%% Parsing STOMP frames + +handle_frame(<<"MESSAGE", "\n", _Frame/binary>>, State) -> + {noreply, State}; +handle_frame(Frame, State) -> + io:format("Received unknown frame ~p", [Frame]), + {noreply, State}. + + +%% Parse out headers into a map +-spec parse_headers(binary()) -> headers(). +parse_headers(HeadersBin) -> + Headers = binary:split(HeadersBin, <<"\n">>, [global]), + ToPairs = fun(H, M) -> [K,V | []] = binary:split(H, <<":">>), + maps:put(K, V, M) + end, + {ok, lists:mapfoldl(ToPairs, #{}, Headers)}. + +%%% Making STOMP protocol frames + +%% Format a header +-spec format_header({binary(), binary()}) -> binary(). +format_header({Key, Val}) -> + <<Key/binary, ":", Val/binary, "\n">>. + +%% Build a single STOMP frame +-spec make_frame(binary(), + headers(), + binary()) + -> {ok, iolist()}. +make_frame(Command, HeaderMap, Body) -> + Headers = lists:map(fun format_header/1, maps:to_list(HeaderMap)), + Frame = [Command, <<"\n">>, Headers, <<"\n">>, Body, <<0>>], + {ok, Frame}. + +%%% Default frames + +-spec connect_frame(list(), any(), any()) -> iolist(). +connect_frame(Host, {ok, Login}, {ok, Pass}) -> + make_frame(<<"CONNECT">>, + #{<<"accept-version">> => <<"1.2">>, + <<"host">> => Host, + <<"login">> => Login, + <<"passcode">> => Pass, + <<"heart-beat">> => <<"0,5000">>}, + []); +connect_frame(Host, _Login, _Pass) -> + make_frame(<<"CONNECT">>, + #{<<"accept-version">> => <<"1.2">>, + <<"host">> => Host, + %% Expect a server heartbeat every 5 seconds, let the server + %% expect one every 10. We don't actually check this and just + %% echo server heartbeats. + %% TODO: For now the server is told not to expect replies due to + %% a weird behaviour. + <<"heart-beat">> => <<"0,5000">>}, + []). + + +-spec subscribe_frame(sub_id(), destination(), ack_mode()) -> iolist(). +subscribe_frame(Id, Queue, Ack) -> + make_frame(<<"SUBSCRIBE">>, + #{<<"id">> => integer_to_binary(Id), + <<"destination">> => Queue, + <<"ack">> => ack_mode_to_binary(Ack)}, + []). + +-spec ack_mode_to_binary(ack_mode()) -> binary(). +ack_mode_to_binary(AckMode) -> + case AckMode of + auto -> <<"auto">>; + client -> <<"client">>; + client_individual -> <<"client-individual">> + end. + +%% -spec ack_frame(binary()) -> iolist(). +%% ack_frame(MessageID) -> +%% make_frame(<<"ACK">>, +%% [{"id", MessageID}], +%% []). |