commit 8703f2f82e36171515ca488fca0163c42f738a3a Author: svartalf Date: Sun May 20 12:59:41 2018 +0300 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 000000000..693699042 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +/target +**/*.rs.bk +Cargo.lock diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 000000000..8c91a7415 --- /dev/null +++ b/.travis.yml @@ -0,0 +1,8 @@ +language: rust +rust: + - stable + - beta + - nightly +matrix: + allow_failures: + - rust: nightly diff --git a/Cargo.toml b/Cargo.toml new file mode 100644 index 000000000..773d4c264 --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,16 @@ +[package] +name = "actix-web-httpauth" +version = "0.0.1" +authors = ["svartalf "] +description = "HTTP authorization schemes for actix-web" +readme = "README.md" +keywords = ["http", "web", "framework"] +homepage = "https://github.com/svartalf/actix-web-httpauth" +repository = "https://github.com/svartlaf/actix-web-httpauth.git" +documentation = "https://docs.rs/actix-web-httpauth/" +categories = ["web-programming::http-server"] +license = "MIT/Apache-2.0" + +[dependencies] +actix-web = "0.6" +base64 = "0.9" diff --git a/LICENSE-APACHE b/LICENSE-APACHE new file mode 100644 index 000000000..b3844ab27 --- /dev/null +++ b/LICENSE-APACHE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 000000000..cd9f91f30 --- /dev/null +++ b/README.md @@ -0,0 +1 @@ +# actix-web-httpauth diff --git a/src/errors.rs b/src/errors.rs new file mode 100644 index 000000000..f85fd7fd9 --- /dev/null +++ b/src/errors.rs @@ -0,0 +1,63 @@ +use std::fmt; +use std::error; +use std::string; + +use base64; +use actix_web::HttpResponse; +use actix_web::error::ResponseError; +use actix_web::http::{StatusCode, header}; + +#[derive(Debug, PartialEq)] +pub enum Error { + HeaderMissing, // HTTP 401 + // TODO: Ensure that 401 should be returned if not a `Basic` mechanism is received + InvalidMechanism, // HTTP 401 ? + HeaderMalformed, // HTTP 400 +} + +impl fmt::Display for Error { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + let msg = match self { + Error::HeaderMissing => "HTTP 'Authorization' header is missing", + Error::InvalidMechanism => "Wrong mechanizm for a HTTP 'Authorization' header, expected 'Basic'", + Error::HeaderMalformed => "Malformed HTTP 'Authorization' header", + }; + + f.write_str(msg) + } +} + +impl error::Error for Error {} + +impl From for Error { + fn from(_: header::ToStrError) -> Self { + Error::HeaderMalformed + } +} + +impl From for Error { + fn from(_: base64::DecodeError) -> Self { + Error::HeaderMalformed + } +} + +impl From for Error { + fn from(_: string::FromUtf8Error) -> Self { + Error::HeaderMalformed + } +} + +impl ResponseError for Error { + fn error_response(&self) -> HttpResponse { + let status = match self { + Error::HeaderMissing => StatusCode::UNAUTHORIZED, + Error::InvalidMechanism => StatusCode::UNAUTHORIZED, + Error::HeaderMalformed => StatusCode::BAD_REQUEST, + }; + + HttpResponse::build(status) + .header("WWW-Authenticate", "Basic, charset=\"UTF-8\"") + .finish() + } + +} diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 000000000..67bbfb6f1 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,8 @@ +extern crate actix_web; +extern crate base64; + +mod schemes; +mod errors; + +pub use schemes::*; +pub use errors::Error; diff --git a/src/schemes/basic.rs b/src/schemes/basic.rs new file mode 100644 index 000000000..3000abaec --- /dev/null +++ b/src/schemes/basic.rs @@ -0,0 +1,120 @@ +use base64; +use actix_web::{HttpRequest, HttpMessage, FromRequest}; + +use errors::Error; + +/// Extractor for `Authorization: Basic {payload}` HTTP request header. +/// +/// If header is not present, HTTP 401 will be returned. +/// +/// # Example +/// +/// use actix_web_httpauth::BasicAuth; +/// +/// pub fn handler(auth: BasicAuth) -> String { +/// format!("Hello, {}", auth.username) +/// } +#[derive(Debug, PartialEq)] +pub struct BasicAuth { + pub username: String, + pub password: String, +} + + +impl FromRequest for BasicAuth { + type Config = (); + type Result = Result; + + fn from_request(req: &HttpRequest, _cfg: &>::Config) -> >::Result { + let header = req.headers().get("Authorization") + .ok_or(Error::HeaderMissing)? + .to_str()?; + let mut parts = header.splitn(2, ' '); + + // Authorization mechanism + match parts.next() { + None => return Err(Error::InvalidMechanism), + Some(mechanism) if mechanism != "Basic" => return Err(Error::InvalidMechanism), + _ => () + } + + // Authorization payload + let payload = parts.next().ok_or(Error::HeaderMalformed)?; + let payload = base64::decode(payload)?; + let payload = String::from_utf8(payload)?; + let mut parts = payload.splitn(2, ':'); + let user = parts.next().ok_or(Error::HeaderMalformed)?; + let password = parts.next().ok_or(Error::HeaderMalformed)?; + + Ok(BasicAuth{ + username: user.to_string(), + password: password.to_string(), + }) + } +} + +#[cfg(test)] +mod tests { + use base64; + use actix_web::FromRequest; + use actix_web::test::TestRequest; + + use super::{BasicAuth, Error}; + + #[test] + fn test_valid_auth() { + let value = format!("Basic {}", base64::encode("user:pass")); + let req = TestRequest::with_header("Authorization", value).finish(); + let auth = BasicAuth::extract(&req); + + assert!(auth.is_ok()); + let auth = auth.unwrap(); + assert_eq!(auth.username, "user".to_string()); + assert_eq!(auth.password, "pass".to_string()); + } + + #[test] + fn test_missing_header() { + let req = TestRequest::default().finish(); + let auth = BasicAuth::extract(&req); + + assert!(auth.is_err()); + let err = auth.err().unwrap(); + assert_eq!(err, Error::HeaderMissing); + } + + #[test] + fn test_invalid_mechanism() { + let value = format!("Digest {}", base64::encode("user:pass")); + let req = TestRequest::with_header("Authorization", value).finish(); + let auth = BasicAuth::extract(&req); + + assert!(auth.is_err()); + let err = auth.err().unwrap(); + assert_eq!(err, Error::InvalidMechanism); + } + + #[test] + fn test_invalid_format() { + let value = format!("Basic {}", base64::encode("user")); + let req = TestRequest::with_header("Authorization", value).finish(); + let auth = BasicAuth::extract(&req); + + assert!(auth.is_err()); + let err = auth.err().unwrap(); + assert_eq!(err, Error::HeaderMalformed); + } + + #[test] + fn test_user_without_password() { + let value = format!("Basic {}", base64::encode("user:")); + let req = TestRequest::with_header("Authorization", value).finish(); + let auth = BasicAuth::extract(&req); + + assert!(auth.is_ok()); + assert_eq!(auth.unwrap(), BasicAuth { + username: "user".to_string(), + password: "".to_string(), + }) + } +} diff --git a/src/schemes/mod.rs b/src/schemes/mod.rs new file mode 100644 index 000000000..43d195913 --- /dev/null +++ b/src/schemes/mod.rs @@ -0,0 +1,3 @@ +mod basic; + +pub use self::basic::BasicAuth;