HTTP Signatures

This crate is used to create and verify HTTP Signatures, defined here. It has support for Hyper, Rocket, and Reqwest types, although currently these adapters have not been tested. In the future, I might also support Iron middleware for verification.

Usage

With Hyper

Add this to your Cargo.toml toml [dependencies.http-signatures] version = "0.1" features = ["use_hyper"]

Client

Use it when building a request as follows. ```rust extern crate hyper; extern crate tokiocore; extern crate httpsignatures;

use tokiocore::reactor::Core; use hyper::{Client, Method, Request}; use httpsignatures::{WithHttpRequest, SignatureAlgorithm, ShaSize};

let keyid = "some-username-or-something"; let privatekey = File.open("some-public-key.der")?;

let mut core = Core::new()?; let client = Client::new(&core.handle());

let mut req = Request::new(Method::Post, "https://example.com"); req.headersmut().set(ContentType::json()); req.headersmut().set(ContentLength(json.len() as u64));

// Add the HTTP Signature req.withhttpsignature(keyid.into(), privatekey, SignatureAlgorithm::RSA(ShaSize::FiveTwelve))?;

req.set_body(json);

let post = client.request(req).and_then(|res| { println!("POST: {}", res.status());

res.body().concat2()

});

core.run(post); ```

Server

This is a very basic example server outline that should give you a general idea of how to set up a Hyper server that verifies HTTP Signatures. This is not meant to be code that actually works. ```rust extern crate hyper; extern crate futures; extern crate http_signatures;

use futures::future::Future;

use hyper::header::ContentLength; use hyper::server::{Http, Request, Response, Service}; use http_signatures::{GetKey, VerifyAuthorizationHeader};

[derive(Clone)]

struct MyKeyGetter { key: std::fs::File; }

impl MyKeyGetter { fn new(filename: &str) -> Result

impl GetKey for MyKeyGetter { type Key = std::fs::File; type Error = ..;

fn get_key(self, _key_id: String) -> Result<Self::Key, Self::Error> {
    Ok(self.key)
}

}

struct HelloWorld { key_getter: MyKeyGetter, };

impl HelloWorld { fn new(filename: &str) -> Result

impl Service for HelloWorld { type Request = Request; type Response = ..; type Error = ..;

type Future = ..;

fn call(&self, req: Request) -> Self::Future {
    req.verify_authorization_header(self.key_getter.clone())?;
    ...
}

}

fn main() { let addr = ..; let server = Http::new().bind(&addr, || Ok(HelloWorld::new("some-keyfile").unwrap())).unwrap(); server.run().unwrap(); } ```

With Reqwest

Add this to your Cargo.toml toml [dependencies.http-signatures] version = "0.1" features = ["use_reqwest"] In your code, use it when building a request as follows.

```rust extern crate reqwest; extern crate http_signatures;

use reqwest::Client; use http_signatures::{WithHttpRequest, SignatureAlgorithm, ShaSize};

let keyid = "some-username-or-something".into(); let privatekey = File.open("some-public-key.der")?;

let client = Client::new(); let req = client.post("https://example.com") .body("Some Body") .withhttpsignature(keyid, privatekey, SignatureAlgorithm::RSA(ShaSize::FiveTwelve))?;

client::execute(req)?; ```

With Rocket

Add this to your Cargo.toml toml [dependencies.http-signatures] version = "0.1" features = ["use_rocket"] In your code, use it in a route like so ```rust use http_signatures::{GetKey, VerifyAuthorizationHeader};

struct MyKeyGetter { key: std::fs::File; }

impl MyKeyGetter { fn new(filename: &str) -> Result

impl GetKey for MyKeyGetter { type Key = std::fs::File; type Error = ..;

fn get_key(self, _key_id: String) -> Result<Self::Key, Self::Error> {
    Ok(self.key)
}

}

[get("/some-endpoint")]

fn endpoint(req: Request) -> Resultauthorizationheader(MyKeyGetter::new("some-key-file")?)?; ... }

```

License

HTTP Signatures 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.

HTTP Signatures 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. This file is part of HTTP Signatures

You should have received a copy of the GNU General Public License along with HTTP Signatures If not, see http://www.gnu.org/licenses/.