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Add "algorithm" parameter to HTTP signature

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This commit is contained in:
silverpill 2021-12-27 15:28:05 +00:00
parent 9cd2c26e06
commit 690edddbc1
2 changed files with 21 additions and 17 deletions
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4
src/http_signatures/create.rs
View file

@ -63,7 +63,7 @@ pub fn create_http_signature(
.collect::<Vec<String>>().join(" ");
let signature_parameter = sign_message(actor_key, &message)?;
let signature_header = format!(
r#"keyId="{}",headers="{}",signature="{}""#,
r#"keyId="{}",algorithm="rsa-sha256",headers="{}",signature="{}""#,
actor_key_id,
headers_parameter,
signature_parameter,
@ -100,6 +100,7 @@ mod tests {
assert_eq!(headers.digest, None);
let expected_signature_header = concat!(
r#"keyId="https://myserver.org/actor#main-key","#,
r#"algorithm="rsa-sha256","#,
r#"headers="(request-target) host date","#,
r#"signature=""#,
);
@ -133,6 +134,7 @@ mod tests {
);
let expected_signature_header = concat!(
r#"keyId="https://myserver.org/actor#main-key","#,
r#"algorithm="rsa-sha256","#,
r#"headers="(request-target) host date digest","#,
r#"signature=""#,
);

34
src/http_signatures/verify.rs
View file

@ -1,3 +1,5 @@
use std::collections::HashMap;
use actix_web::{
HttpRequest,
http::{HeaderMap, Method, Uri},
@ -44,6 +46,8 @@ pub struct SignatureData {
pub signature: String, // base64-encoded signature
}
const SIGNATURE_PARAMETER_RE: &str = r#"^(?P<key>[a-zA-Z]+)="(?P<value>.+)"$"#;
fn parse_http_signature(
request_method: &Method,
request_uri: &Uri,
@ -53,27 +57,25 @@ fn parse_http_signature(
.ok_or(VerificationError::HeaderError("missing signature header"))?
.to_str()
.map_err(|_| VerificationError::HeaderError("invalid signature header"))?;
// TODO: support arbitrary parameter order
let signature_header_regexp_raw = concat!(
r#"keyId="(?P<key_id>.+)","#,
r#"headers="(?P<headers>.+)","#,
r#"signature="(?P<signature>.+)""#,
);
let signature_header_regexp = Regex::new(signature_header_regexp_raw).unwrap();
let signature_header_caps = signature_header_regexp
.captures(signature_header)
.ok_or(VerificationError::HeaderError("invalid signature header"))?;
let key_id = signature_header_caps.name("key_id")
let signature_parameter_re = Regex::new(SIGNATURE_PARAMETER_RE).unwrap();
let mut signature_parameters = HashMap::new();
for item in signature_header.split(",") {
let caps = signature_parameter_re.captures(item)
.ok_or(VerificationError::HeaderError("invalid signature header"))?;
let key = caps["key"].to_string();
let value = caps["value"].to_string();
signature_parameters.insert(key, value);
};
let key_id = signature_parameters.get("keyId")
.ok_or(VerificationError::ParseError("keyId parameter is missing"))?
.as_str()
.to_owned();
let headers_parameter = signature_header_caps.name("headers")
let headers_parameter = signature_parameters.get("headers")
.ok_or(VerificationError::ParseError("headers parameter is missing"))?
.as_str()
.to_owned();
let signature = signature_header_caps.name("signature")
let signature = signature_parameters.get("signature")
.ok_or(VerificationError::ParseError("signature is missing"))?
.as_str()
.to_owned();
let mut message = format!(