chore: moved http signatures code in separate file

This commit is contained in:
əlemi 2024-05-13 18:52:42 +02:00
parent c0cebcca96
commit d2f0ce0391
Signed by: alemi
GPG key ID: A4895B84D311642C
4 changed files with 133 additions and 132 deletions

View file

@ -1,14 +1,10 @@
use std::collections::BTreeMap;
use axum::{extract::{FromRef, FromRequestParts}, http::{header, request::Parts}};
use base64::Engine;
use openssl::{hash::MessageDigest, pkey::PKey, sign::Verifier};
use reqwest::StatusCode;
use sea_orm::{ColumnTrait, Condition, EntityTrait, QueryFilter};
use crate::{errors::UpubError, model, server::Context};
use super::fetcher::Fetcher;
use super::{fetcher::Fetcher, httpsign::HttpSignature};
#[derive(Debug, Clone)]
pub enum Identity {
@ -147,129 +143,3 @@ where
Ok(AuthIdentity(identity))
}
}
#[derive(Debug, Clone, Default)]
pub struct HttpSignature {
pub key_id: String,
pub algorithm: String,
pub headers: Vec<String>,
pub signature: String,
pub control: String,
}
impl HttpSignature {
pub fn new(key_id: String, algorithm: String, headers: &[&str]) -> Self {
HttpSignature {
key_id, algorithm,
headers: headers.iter().map(|x| x.to_string()).collect(),
signature: String::new(),
control: String::new(),
}
}
pub fn parse(header: &str) -> Self {
let mut sig = HttpSignature::default();
header.split(',')
.filter_map(|x| x.split_once('='))
.map(|(k, v)| (k, v.trim_end_matches('"').trim_matches('"')))
.for_each(|(k, v)| match k {
"keyId" => sig.key_id = v.to_string(),
"algorithm" => sig.algorithm = v.to_string(),
"signature" => sig.signature = v.to_string(),
"headers" => sig.headers = v.split(' ').map(|x| x.to_string()).collect(),
_ => tracing::warn!("unexpected field in http signature: '{k}=\"{v}\"'"),
});
sig
}
pub fn header(&self) -> String {
format!(
"keyId=\"{}\",algorithm=\"{}\",headers=\"{}\",signature=\"{}\"",
self.key_id, self.algorithm, self.headers.join(" "), self.signature,
)
}
pub fn build_manually(&mut self, method: &str, target: &str, mut headers: BTreeMap<String, String>) -> &mut Self {
let mut out = Vec::new();
for header in &self.headers {
match header.as_str() {
"(request-target)" => out.push(format!("(request-target): {method} {target}")),
// TODO other pseudo-headers
_ => out.push(
format!("{header}: {}", headers.remove(header).unwrap_or_default())
),
}
}
self.control = out.join("\n");
self
}
pub fn build_from_parts(&mut self, parts: &Parts) -> &mut Self {
let mut out = Vec::new();
for header in self.headers.iter() {
match header.as_str() {
"(request-target)" => out.push(
format!(
"(request-target): {} {}",
parts.method.to_string().to_lowercase(),
parts.uri.path_and_query().map(|x| x.as_str()).unwrap_or("/")
)
),
// TODO other pseudo-headers,
_ => out.push(format!("{}: {}",
header.to_lowercase(),
parts.headers.get(header).map(|x| x.to_str().unwrap_or("")).unwrap_or("")
)),
}
}
self.control = out.join("\n");
self
}
pub fn verify(&self, key: &str) -> crate::Result<bool> {
let pubkey = PKey::public_key_from_pem(key.as_bytes())?;
let mut verifier = Verifier::new(MessageDigest::sha256(), &pubkey)?;
let signature = base64::prelude::BASE64_STANDARD.decode(&self.signature)?;
Ok(verifier.verify_oneshot(&signature, self.control.as_bytes())?)
}
pub fn sign(&mut self, key: &str) -> crate::Result<&str> {
let privkey = PKey::private_key_from_pem(key.as_bytes())?;
let mut signer = openssl::sign::Signer::new(MessageDigest::sha256(), &privkey)?;
signer.update(self.control.as_bytes())?;
self.signature = base64::prelude::BASE64_STANDARD.encode(signer.sign_to_vec()?);
Ok(&self.signature)
}
}
#[cfg(test)]
mod test {
#[test]
fn http_signature_signs_and_verifies() {
let key = openssl::rsa::Rsa::generate(2048).unwrap();
let private_key = std::str::from_utf8(&key.private_key_to_pem().unwrap()).unwrap().to_string();
let public_key = std::str::from_utf8(&key.public_key_to_pem().unwrap()).unwrap().to_string();
let mut signer = super::HttpSignature {
key_id: "test".to_string(),
algorithm: "rsa-sha256".to_string(),
headers: vec![
"(request-target)".to_string(),
"host".to_string(),
"date".to_string(),
],
signature: String::new(),
control: String::new(),
};
signer
.build_manually("get", "/actor/inbox", [("host".into(), "example.net".into()), ("date".into(), "Sat, 13 Apr 2024 13:36:23 GMT".into())].into())
.sign(&private_key)
.unwrap();
let mut verifier = super::HttpSignature::parse(&signer.header());
verifier.build_manually("get", "/actor/inbox", [("host".into(), "example.net".into()), ("date".into(), "Sat, 13 Apr 2024 13:36:23 GMT".into())].into());
assert!(verifier.verify(&public_key).unwrap());
}
}

View file

@ -7,7 +7,7 @@ use sea_orm::{sea_query::Expr, ColumnTrait, EntityTrait, IntoActiveModel, QueryF
use crate::{errors::UpubError, model, VERSION};
use super::{auth::HttpSignature, Context};
use super::{httpsign::HttpSignature, Context};
#[axum::async_trait]
pub trait Fetcher {

130
src/server/httpsign.rs Normal file
View file

@ -0,0 +1,130 @@
use std::collections::BTreeMap;
use axum::http::request::Parts;
use base64::Engine;
use openssl::{hash::MessageDigest, pkey::PKey, sign::Verifier};
#[derive(Debug, Clone, Default)]
pub struct HttpSignature {
pub key_id: String,
pub algorithm: String,
pub headers: Vec<String>,
pub signature: String,
pub control: String,
}
impl HttpSignature {
pub fn new(key_id: String, algorithm: String, headers: &[&str]) -> Self {
HttpSignature {
key_id, algorithm,
headers: headers.iter().map(|x| x.to_string()).collect(),
signature: String::new(),
control: String::new(),
}
}
pub fn parse(header: &str) -> Self {
let mut sig = HttpSignature::default();
header.split(',')
.filter_map(|x| x.split_once('='))
.map(|(k, v)| (k, v.trim_end_matches('"').trim_matches('"')))
.for_each(|(k, v)| match k {
"keyId" => sig.key_id = v.to_string(),
"algorithm" => sig.algorithm = v.to_string(),
"signature" => sig.signature = v.to_string(),
"headers" => sig.headers = v.split(' ').map(|x| x.to_string()).collect(),
_ => tracing::warn!("unexpected field in http signature: '{k}=\"{v}\"'"),
});
sig
}
pub fn header(&self) -> String {
format!(
"keyId=\"{}\",algorithm=\"{}\",headers=\"{}\",signature=\"{}\"",
self.key_id, self.algorithm, self.headers.join(" "), self.signature,
)
}
pub fn build_manually(&mut self, method: &str, target: &str, mut headers: BTreeMap<String, String>) -> &mut Self {
let mut out = Vec::new();
for header in &self.headers {
match header.as_str() {
"(request-target)" => out.push(format!("(request-target): {method} {target}")),
// TODO other pseudo-headers
_ => out.push(
format!("{header}: {}", headers.remove(header).unwrap_or_default())
),
}
}
self.control = out.join("\n");
self
}
pub fn build_from_parts(&mut self, parts: &Parts) -> &mut Self {
let mut out = Vec::new();
for header in self.headers.iter() {
match header.as_str() {
"(request-target)" => out.push(
format!(
"(request-target): {} {}",
parts.method.to_string().to_lowercase(),
parts.uri.path_and_query().map(|x| x.as_str()).unwrap_or("/")
)
),
// TODO other pseudo-headers,
_ => out.push(format!("{}: {}",
header.to_lowercase(),
parts.headers.get(header).map(|x| x.to_str().unwrap_or("")).unwrap_or("")
)),
}
}
self.control = out.join("\n");
self
}
pub fn verify(&self, key: &str) -> crate::Result<bool> {
let pubkey = PKey::public_key_from_pem(key.as_bytes())?;
let mut verifier = Verifier::new(MessageDigest::sha256(), &pubkey)?;
let signature = base64::prelude::BASE64_STANDARD.decode(&self.signature)?;
Ok(verifier.verify_oneshot(&signature, self.control.as_bytes())?)
}
pub fn sign(&mut self, key: &str) -> crate::Result<&str> {
let privkey = PKey::private_key_from_pem(key.as_bytes())?;
let mut signer = openssl::sign::Signer::new(MessageDigest::sha256(), &privkey)?;
signer.update(self.control.as_bytes())?;
self.signature = base64::prelude::BASE64_STANDARD.encode(signer.sign_to_vec()?);
Ok(&self.signature)
}
}
#[cfg(test)]
mod test {
#[test]
fn http_signature_signs_and_verifies() {
let key = openssl::rsa::Rsa::generate(2048).unwrap();
let private_key = std::str::from_utf8(&key.private_key_to_pem().unwrap()).unwrap().to_string();
let public_key = std::str::from_utf8(&key.public_key_to_pem().unwrap()).unwrap().to_string();
let mut signer = super::HttpSignature {
key_id: "test".to_string(),
algorithm: "rsa-sha256".to_string(),
headers: vec![
"(request-target)".to_string(),
"host".to_string(),
"date".to_string(),
],
signature: String::new(),
control: String::new(),
};
signer
.build_manually("get", "/actor/inbox", [("host".into(), "example.net".into()), ("date".into(), "Sat, 13 Apr 2024 13:36:23 GMT".into())].into())
.sign(&private_key)
.unwrap();
let mut verifier = super::HttpSignature::parse(&signer.header());
verifier.build_manually("get", "/actor/inbox", [("host".into(), "example.net".into()), ("date".into(), "Sat, 13 Apr 2024 13:36:23 GMT".into())].into());
assert!(verifier.verify(&public_key).unwrap());
}
}

View file

@ -5,5 +5,6 @@ pub mod inbox;
pub mod outbox;
pub mod auth;
pub mod builders;
pub mod httpsign;
pub use context::Context;