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/target
**/*.rs.bk
Cargo.lock

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language: rust
rust:
- stable
- beta
- nightly
matrix:
allow_failures:
- rust: nightly

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[package]
name = "actix-web-httpauth"
version = "0.0.1"
authors = ["svartalf <self@svartalf.info>"]
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"

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# actix-web-httpauth

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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<header::ToStrError> for Error {
fn from(_: header::ToStrError) -> Self {
Error::HeaderMalformed
}
}
impl From<base64::DecodeError> for Error {
fn from(_: base64::DecodeError) -> Self {
Error::HeaderMalformed
}
}
impl From<string::FromUtf8Error> 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()
}
}

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extern crate actix_web;
extern crate base64;
mod schemes;
mod errors;
pub use schemes::*;
pub use errors::Error;

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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<S> FromRequest<S> for BasicAuth {
type Config = ();
type Result = Result<Self, Error>;
fn from_request(req: &HttpRequest<S>, _cfg: &<Self as FromRequest<S>>::Config) -> <Self as FromRequest<S>>::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(),
})
}
}

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mod basic;
pub use self::basic::BasicAuth;