Merge pull request 'Fix #872 Include (request-target) and Host header to HTTP Signature' (#884) from httpsig into main

Reviewed-on: https://git.joinplu.me/Plume/Plume/pulls/884
This commit is contained in:
KitaitiMakoto 2021-02-06 19:19:36 +00:00
commit ac48744aca
3 changed files with 112 additions and 16 deletions

View File

@ -10,6 +10,7 @@
- More translation languages (#862)
- Proxy support (#829)
- Riker a actor system library (#870)
- (request-target) and Host header in HTTP Signature (#872)
### Changed

View File

@ -1,6 +1,6 @@
use activitypub::{Activity, Link, Object};
use array_tool::vec::Uniq;
use reqwest::r#async::ClientBuilder;
use reqwest::{header::HeaderValue, r#async::ClientBuilder, Url};
use rocket::{
http::Status,
request::{FromRequest, Request},
@ -143,6 +143,22 @@ where
for inbox in boxes {
let body = signed.to_string();
let mut headers = request::headers();
let url = Url::parse(&inbox);
if url.is_err() {
warn!("Inbox is invalid URL: {:?}", &inbox);
continue;
}
let url = url.unwrap();
if !url.has_host() {
warn!("Inbox doesn't have host: {:?}", &inbox);
continue;
};
let host_header_value = HeaderValue::from_str(&url.host_str().expect("Unreachable"));
if host_header_value.is_err() {
warn!("Header value is invalid: {:?}", url.host_str());
continue;
}
headers.insert("Host", host_header_value.unwrap());
headers.insert("Digest", request::Digest::digest(&body));
rt.spawn(
client
@ -150,7 +166,7 @@ where
.headers(headers.clone())
.header(
"Signature",
request::signature(sender, &headers)
request::signature(sender, &headers, ("post", url.path(), url.query()))
.expect("activity_pub::broadcast: request signature error"),
)
.body(body)

View File

@ -3,6 +3,7 @@ use openssl::hash::{Hasher, MessageDigest};
use reqwest::header::{HeaderMap, HeaderValue, ACCEPT, CONTENT_TYPE, DATE, USER_AGENT};
use std::ops::Deref;
use std::time::SystemTime;
use tracing::warn;
use crate::activity_pub::sign::Signer;
use crate::activity_pub::{ap_accept_header, AP_CONTENT_TYPE};
@ -112,25 +113,45 @@ pub fn headers() -> HeaderMap {
headers
}
pub fn signature<S: Signer>(signer: &S, headers: &HeaderMap) -> Result<HeaderValue, Error> {
let signed_string = headers
type Method<'a> = &'a str;
type Path<'a> = &'a str;
type Query<'a> = &'a str;
type RequestTarget<'a> = (Method<'a>, Path<'a>, Option<Query<'a>>);
pub fn signature<S: Signer>(
signer: &S,
headers: &HeaderMap,
request_target: RequestTarget,
) -> Result<HeaderValue, Error> {
let (method, path, query) = request_target;
let origin_form = if let Some(query) = query {
format!("{}?{}", path, query)
} else {
path.to_string()
};
let mut headers_vec = Vec::with_capacity(headers.len());
for (h, v) in headers.iter() {
let v = v.to_str();
if v.is_err() {
warn!("invalid header error: {:?}", v.unwrap_err());
return Err(Error());
}
headers_vec.push((h.as_str().to_lowercase(), v.expect("Unreachable")));
}
let request_target = format!("{} {}", method.to_lowercase(), origin_form);
headers_vec.push(("(request-target)".to_string(), &request_target));
let signed_string = headers_vec
.iter()
.map(|(h, v)| {
format!(
"{}: {}",
h.as_str().to_lowercase(),
v.to_str()
.expect("request::signature: invalid header error")
)
})
.map(|(h, v)| format!("{}: {}", h, v))
.collect::<Vec<String>>()
.join("\n");
let signed_headers = headers
let signed_headers = headers_vec
.iter()
.map(|(h, _)| h.as_str())
.map(|(h, _)| h.as_ref())
.collect::<Vec<&str>>()
.join(" ")
.to_lowercase();
.join(" ");
let data = signer.sign(&signed_string).map_err(|_| Error())?;
let sign = base64::encode(&data);
@ -142,3 +163,61 @@ pub fn signature<S: Signer>(signer: &S, headers: &HeaderMap) -> Result<HeaderVal
signature = sign
)).map_err(|_| Error())
}
#[cfg(test)]
mod tests {
use super::{signature, Error};
use crate::activity_pub::sign::{gen_keypair, Signer};
use openssl::{hash::MessageDigest, pkey::PKey, rsa::Rsa};
use reqwest::header::HeaderMap;
struct MySigner {
public_key: String,
private_key: String,
}
impl MySigner {
fn new() -> Self {
let (pub_key, priv_key) = gen_keypair();
Self {
public_key: String::from_utf8(pub_key).unwrap(),
private_key: String::from_utf8(priv_key).unwrap(),
}
}
}
impl Signer for MySigner {
type Error = Error;
fn get_key_id(&self) -> String {
"mysigner".into()
}
fn sign(&self, to_sign: &str) -> Result<Vec<u8>, Self::Error> {
let key = PKey::from_rsa(Rsa::private_key_from_pem(self.private_key.as_ref()).unwrap())
.unwrap();
let mut signer = openssl::sign::Signer::new(MessageDigest::sha256(), &key).unwrap();
signer.update(to_sign.as_bytes()).unwrap();
signer.sign_to_vec().map_err(|_| Error())
}
fn verify(&self, data: &str, signature: &[u8]) -> Result<bool, Self::Error> {
let key = PKey::from_rsa(Rsa::public_key_from_pem(self.public_key.as_ref()).unwrap())
.unwrap();
let mut verifier = openssl::sign::Verifier::new(MessageDigest::sha256(), &key).unwrap();
verifier.update(data.as_bytes()).unwrap();
verifier.verify(&signature).map_err(|_| Error())
}
}
#[test]
fn test_signature_request_target() {
let signer = MySigner::new();
let headers = HeaderMap::new();
let result = signature(&signer, &headers, ("post", "/inbox", None)).unwrap();
let fields: Vec<&str> = result.to_str().unwrap().split(",").collect();
assert_eq!(r#"headers="(request-target)""#, fields[2]);
let sign = &fields[3][11..(fields[3].len() - 1)];
assert!(signer.verify("post /inbox", sign.as_bytes()).is_ok());
}
}