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Merge pull request 'AWS signatures v4: don't actually check Content-Type is signed' (#745) from fix-signed-headers into main

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Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/745
This commit is contained in:
Alex 2024-03-01 12:50:15 +00:00
commit 70b9904e91
2 changed files with 9 additions and 14 deletions
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4
script/test-smoke.sh
View file

@ -81,11 +81,9 @@ if [ -z "$SKIP_AWS" ]; then
echo "Invalid multipart upload"
exit 1
fi
aws s3api delete-object --bucket eprouvette --key upload
fi
echo "OK!!"
exit 0
# S3CMD
if [ -z "$SKIP_S3CMD" ]; then
echo "🛠️ Testing with s3cmd"

19
src/api/signature/payload.rs
View file

@ -3,7 +3,7 @@ use std::convert::TryFrom;
use chrono::{DateTime, Duration, NaiveDateTime, TimeZone, Utc};
use hmac::Mac;
use hyper::header::{HeaderMap, HeaderName, HeaderValue, AUTHORIZATION, CONTENT_TYPE, HOST};
use hyper::header::{HeaderMap, HeaderName, HeaderValue, AUTHORIZATION, HOST};
use hyper::{body::Incoming as IncomingBody, Method, Request};
use sha2::{Digest, Sha256};
@ -74,12 +74,13 @@ async fn check_standard_signature(
let authorization = Authorization::parse_header(request.headers())?;
// Verify that all necessary request headers are included in signed_headers
// For standard AWSv4 signatures, the following must be included:
// The following must be included for all signatures:
// - the Host header (mandatory)
// - the Content-Type header, if it is used in the request
// - all x-amz-* headers used in the request
// AWS also indicates that the Content-Type header should be signed if
// it is used, but Minio client doesn't sign it so we don't check it for compatibility.
let signed_headers = split_signed_headers(&authorization)?;
verify_signed_headers(request.headers(), &signed_headers, &[CONTENT_TYPE])?;
verify_signed_headers(request.headers(), &signed_headers)?;
let canonical_request = canonical_request(
service,
@ -129,7 +130,7 @@ async fn check_presigned_signature(
// - the Host header (mandatory)
// - all x-amz-* headers used in the request
let signed_headers = split_signed_headers(&authorization)?;
verify_signed_headers(request.headers(), &signed_headers, &[])?;
verify_signed_headers(request.headers(), &signed_headers)?;
// The X-Amz-Signature value is passed as a query parameter,
// but the signature cannot be computed from a string that contains itself.
@ -229,16 +230,12 @@ fn split_signed_headers(authorization: &Authorization) -> Result<Vec<HeaderName>
Ok(signed_headers)
}
fn verify_signed_headers(
headers: &HeaderMap,
signed_headers: &[HeaderName],
extra_headers: &[HeaderName],
) -> Result<(), Error> {
fn verify_signed_headers(headers: &HeaderMap, signed_headers: &[HeaderName]) -> Result<(), Error> {
if !signed_headers.contains(&HOST) {
return Err(Error::bad_request("Header `Host` should be signed"));
}
for (name, _) in headers.iter() {
if name.as_str().starts_with("x-amz-") || extra_headers.contains(name) {
if name.as_str().starts_with("x-amz-") {
if !signed_headers.contains(name) {
return Err(Error::bad_request(format!(
"Header `{}` should be signed",