[fix-presigned] split presigned/normal signature verification
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GPG key ID:
0E496D15096376BE
4 changed files with 417 additions and 268 deletions
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@ -21,7 +21,7 @@ use crate::s3::cors::*;
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use crate::s3::error::*;
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use crate::s3::put::{get_headers, save_stream};
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use crate::s3::xml as s3_xml;
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use crate::signature::payload::{parse_date, verify_v4};
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use crate::signature::payload::{verify_v4, Authorization};
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pub async fn handle_post_object(
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garage: Arc<Garage>,
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@ -88,22 +88,11 @@ pub async fn handle_post_object(
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.get("key")
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.ok_or_bad_request("No key was provided")?
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.to_str()?;
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let credential = params
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.get("x-amz-credential")
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.ok_or_else(|| Error::forbidden("Garage does not support anonymous access yet"))?
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.to_str()?;
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let policy = params
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.get("policy")
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.ok_or_bad_request("No policy was provided")?
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.to_str()?;
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let signature = params
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.get("x-amz-signature")
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.ok_or_bad_request("No signature was provided")?
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.to_str()?;
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let date = params
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.get("x-amz-date")
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.ok_or_bad_request("No date was provided")?
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.to_str()?;
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let authorization = Authorization::parse_form(¶ms)?;
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let key = if key.contains("${filename}") {
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// if no filename is provided, don't replace. This matches the behavior of AWS.
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@ -116,16 +105,7 @@ pub async fn handle_post_object(
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key.to_owned()
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};
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let date = parse_date(date)?;
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let api_key = verify_v4(
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&garage,
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"s3",
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credential,
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&date,
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signature,
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policy.as_bytes(),
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)
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.await?;
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let api_key = verify_v4(&garage, "s3", &authorization, policy.as_bytes()).await?;
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let bucket_id = garage
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.bucket_helper()
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@ -1,7 +1,9 @@
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use std::collections::HashMap;
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use std::convert::TryFrom;
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use chrono::{DateTime, Duration, NaiveDateTime, TimeZone, Utc};
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use hmac::Mac;
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use hyper::header::{HeaderMap, HeaderName, AUTHORIZATION, CONTENT_TYPE, HOST};
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use hyper::{body::Incoming as IncomingBody, Method, Request};
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use sha2::{Digest, Sha256};
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@ -17,66 +19,87 @@ use super::{compute_scope, signing_hmac};
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use crate::encoding::uri_encode;
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use crate::signature::error::*;
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pub const X_AMZ_ALGORITHM: HeaderName = HeaderName::from_static("x-amz-algorithm");
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pub const X_AMZ_CREDENTIAL: HeaderName = HeaderName::from_static("x-amz-credential");
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pub const X_AMZ_DATE: HeaderName = HeaderName::from_static("x-amz-date");
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pub const X_AMZ_EXPIRES: HeaderName = HeaderName::from_static("x-amz-expires");
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pub const X_AMZ_SIGNEDHEADERS: HeaderName = HeaderName::from_static("x-amz-signedheaders");
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pub const X_AMZ_SIGNATURE: HeaderName = HeaderName::from_static("x-amz-signature");
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pub const X_AMZ_CONTENT_SH256: HeaderName = HeaderName::from_static("x-amz-content-sha256");
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pub const AWS4_HMAC_SHA256: &str = "AWS4-HMAC-SHA256";
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pub const UNSIGNED_PAYLOAD: &str = "UNSIGNED-PAYLOAD";
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pub const STREAMING_AWS4_HMAC_SHA256_PAYLOAD: &str = "STREAMING-AWS4-HMAC-SHA256-PAYLOAD";
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pub type QueryMap = HashMap<String, String>;
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pub async fn check_payload_signature(
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garage: &Garage,
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service: &'static str,
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request: &Request<IncomingBody>,
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) -> Result<(Option<Key>, Option<Hash>), Error> {
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let mut headers = HashMap::new();
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for (key, val) in request.headers() {
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headers.insert(key.to_string(), val.to_str()?.to_string());
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}
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if let Some(query) = request.uri().query() {
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let query_pairs = url::form_urlencoded::parse(query.as_bytes());
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for (key, val) in query_pairs {
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headers.insert(key.to_lowercase(), val.to_string());
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}
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let query = parse_query_map(request.uri())?;
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let res = if query.contains_key(X_AMZ_ALGORITHM.as_str()) {
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check_presigned_signature(garage, service, request, query).await
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} else {
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check_standard_signature(garage, service, request, query).await
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};
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if let Err(e) = &res {
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error!("ERROR IN SIGNATURE\n{:?}\n{}", request, e);
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}
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let authorization = if let Some(authorization) = headers.get("authorization") {
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parse_authorization(authorization, &headers)?
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} else if let Some(algorithm) = headers.get("x-amz-algorithm") {
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parse_query_authorization(algorithm, &headers)?
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} else {
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let content_sha256 = headers.get("x-amz-content-sha256");
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if let Some(content_sha256) = content_sha256.filter(|c| "UNSIGNED-PAYLOAD" != c.as_str()) {
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let sha256 = hex::decode(content_sha256)
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.ok()
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.and_then(|bytes| Hash::try_from(&bytes))
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.ok_or_bad_request("Invalid content sha256 hash")?;
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return Ok((None, Some(sha256)));
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} else {
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return Ok((None, None));
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res
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}
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async fn check_standard_signature(
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garage: &Garage,
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service: &'static str,
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request: &Request<IncomingBody>,
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query: QueryMap,
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) -> Result<(Option<Key>, Option<Hash>), Error> {
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let authorization = Authorization::parse(request.headers())?;
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// Verify that all necessary request headers are signed
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let signed_headers = split_signed_headers(&authorization)?;
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for (name, _) in request.headers().iter() {
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if name.as_str().starts_with("x-amz-") || name == CONTENT_TYPE {
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if !signed_headers.contains(name) {
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return Err(Error::bad_request(format!(
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"Header `{}` should be signed",
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name
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)));
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}
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}
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}
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if !signed_headers.contains(&HOST) {
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return Err(Error::bad_request("Header `Host` should be signed"));
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}
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};
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let canonical_request = canonical_request(
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service,
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request.method(),
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request.uri(),
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&headers,
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&authorization.signed_headers,
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request.uri().path(),
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&query,
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request.headers(),
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signed_headers,
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&authorization.content_sha256,
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)?;
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let string_to_sign = string_to_sign(
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&authorization.date,
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&authorization.scope,
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&canonical_request,
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);
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let (_, scope) = parse_credential(&authorization.credential)?;
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let string_to_sign = string_to_sign(&authorization.date, &scope, &canonical_request);
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trace!("canonical request:\n{}", canonical_request);
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trace!("string to sign:\n{}", string_to_sign);
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let key = verify_v4(
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garage,
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service,
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&authorization.credential,
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&authorization.date,
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&authorization.signature,
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string_to_sign.as_bytes(),
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)
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.await?;
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let key = verify_v4(garage, service, &authorization, string_to_sign.as_bytes()).await?;
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let content_sha256 = if authorization.content_sha256 == "UNSIGNED-PAYLOAD" {
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let content_sha256 = if authorization.content_sha256 == UNSIGNED_PAYLOAD {
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None
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} else if authorization.content_sha256 == "STREAMING-AWS4-HMAC-SHA256-PAYLOAD" {
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} else if authorization.content_sha256 == STREAMING_AWS4_HMAC_SHA256_PAYLOAD {
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let bytes = hex::decode(authorization.signature).ok_or_bad_request("Invalid signature")?;
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Some(Hash::try_from(&bytes).ok_or_bad_request("Invalid signature")?)
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} else {
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@ -88,142 +111,86 @@ pub async fn check_payload_signature(
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Ok((Some(key), content_sha256))
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}
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struct Authorization {
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credential: String,
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signed_headers: String,
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signature: String,
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content_sha256: String,
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date: DateTime<Utc>,
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async fn check_presigned_signature(
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garage: &Garage,
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service: &'static str,
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request: &Request<IncomingBody>,
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mut query: QueryMap,
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) -> Result<(Option<Key>, Option<Hash>), Error> {
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let algorithm = query.get(X_AMZ_ALGORITHM.as_str()).unwrap();
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let authorization = Authorization::parse_presigned(algorithm, &query)?;
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// Check that all mandatory signed headers are included
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let signed_headers = split_signed_headers(&authorization)?;
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for (name, _) in request.headers().iter() {
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if name.as_str().starts_with("x-amz-") {
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if !signed_headers.contains(name) {
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return Err(Error::bad_request(format!(
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"Header `{}` should be signed",
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name
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)));
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}
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}
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}
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if !signed_headers.contains(&HOST) {
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return Err(Error::bad_request("Header `Host` should be signed"));
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}
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query.remove(X_AMZ_SIGNATURE.as_str());
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let canonical_request = canonical_request(
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service,
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request.method(),
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request.uri().path(),
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&query,
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request.headers(),
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signed_headers,
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&authorization.content_sha256,
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)?;
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let string_to_sign = string_to_sign(
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&authorization.date,
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&authorization.scope,
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&canonical_request,
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);
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trace!("canonical request:\n{}", canonical_request);
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trace!("string to sign:\n{}", string_to_sign);
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let key = verify_v4(garage, service, &authorization, string_to_sign.as_bytes()).await?;
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Ok((Some(key), None))
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}
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fn parse_authorization(
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authorization: &str,
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headers: &HashMap<String, String>,
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) -> Result<Authorization, Error> {
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let first_space = authorization
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.find(' ')
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.ok_or_bad_request("Authorization field to short")?;
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let (auth_kind, rest) = authorization.split_at(first_space);
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if auth_kind != "AWS4-HMAC-SHA256" {
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return Err(Error::bad_request("Unsupported authorization method"));
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pub fn parse_query_map(uri: &http::uri::Uri) -> Result<QueryMap, Error> {
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let mut query = QueryMap::new();
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if let Some(query_str) = uri.query() {
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let query_pairs = url::form_urlencoded::parse(query_str.as_bytes());
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for (key, val) in query_pairs {
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if query.insert(key.to_string(), val.into_owned()).is_some() {
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return Err(Error::bad_request(format!(
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"duplicate query parameter: `{}`",
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key
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)));
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}
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let mut auth_params = HashMap::new();
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for auth_part in rest.split(',') {
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let auth_part = auth_part.trim();
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let eq = auth_part
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.find('=')
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.ok_or_bad_request("Field without value in authorization header")?;
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let (key, value) = auth_part.split_at(eq);
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auth_params.insert(key.to_string(), value.trim_start_matches('=').to_string());
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}
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let cred = auth_params
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.get("Credential")
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.ok_or_bad_request("Could not find Credential in Authorization field")?;
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let content_sha256 = headers
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.get("x-amz-content-sha256")
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.ok_or_bad_request("Missing X-Amz-Content-Sha256 field")?;
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let date = headers
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.get("x-amz-date")
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.ok_or_bad_request("Missing X-Amz-Date field")
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.map_err(Error::from)
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.and_then(|d| parse_date(d))?;
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if Utc::now() - date > Duration::hours(24) {
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return Err(Error::bad_request("Date is too old".to_string()));
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}
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let auth = Authorization {
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credential: cred.to_string(),
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signed_headers: auth_params
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.get("SignedHeaders")
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.ok_or_bad_request("Could not find SignedHeaders in Authorization field")?
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.to_string(),
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signature: auth_params
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.get("Signature")
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.ok_or_bad_request("Could not find Signature in Authorization field")?
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.to_string(),
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content_sha256: content_sha256.to_string(),
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date,
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};
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Ok(auth)
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Ok(query)
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}
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fn parse_query_authorization(
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algorithm: &str,
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headers: &HashMap<String, String>,
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) -> Result<Authorization, Error> {
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if algorithm != "AWS4-HMAC-SHA256" {
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return Err(Error::bad_request(
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"Unsupported authorization method".to_string(),
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));
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}
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let cred = headers
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.get("x-amz-credential")
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.ok_or_bad_request("X-Amz-Credential not found in query parameters")?;
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let signed_headers = headers
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.get("x-amz-signedheaders")
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.ok_or_bad_request("X-Amz-SignedHeaders not found in query parameters")?;
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let signature = headers
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.get("x-amz-signature")
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.ok_or_bad_request("X-Amz-Signature not found in query parameters")?;
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let content_sha256 = headers
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.get("x-amz-content-sha256")
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.map(|x| x.as_str())
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.unwrap_or("UNSIGNED-PAYLOAD");
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let duration = headers
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.get("x-amz-expires")
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.ok_or_bad_request("X-Amz-Expires not found in query parameters")?
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.parse()
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.map_err(|_| Error::bad_request("X-Amz-Expires is not a number".to_string()))?;
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if duration > 7 * 24 * 3600 {
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return Err(Error::bad_request(
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"X-Amz-Expires may not exceed a week".to_string(),
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));
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}
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let date = headers
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.get("x-amz-date")
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.ok_or_bad_request("Missing X-Amz-Date field")
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.map_err(Error::from)
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.and_then(|d| parse_date(d))?;
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if Utc::now() - date > Duration::seconds(duration) {
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return Err(Error::bad_request("Date is too old".to_string()));
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}
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Ok(Authorization {
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credential: cred.to_string(),
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signed_headers: signed_headers.to_string(),
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signature: signature.to_string(),
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content_sha256: content_sha256.to_string(),
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date,
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})
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}
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fn parse_credential(cred: &str) -> Result<(String, String), Error> {
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let first_slash = cred
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.find('/')
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.ok_or_bad_request("Credentials does not contain '/' in authorization field")?;
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let (key_id, scope) = cred.split_at(first_slash);
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Ok((
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key_id.to_string(),
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scope.trim_start_matches('/').to_string(),
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))
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fn split_signed_headers(authorization: &Authorization) -> Result<Vec<HeaderName>, Error> {
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let signed_headers = authorization
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.signed_headers
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.split(';')
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.map(HeaderName::try_from)
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.collect::<Result<Vec<HeaderName>, _>>()
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.ok_or_bad_request("invalid header name")?;
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Ok(signed_headers)
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}
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pub fn string_to_sign(datetime: &DateTime<Utc>, scope_string: &str, canonical_req: &str) -> String {
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let mut hasher = Sha256::default();
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hasher.update(canonical_req.as_bytes());
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[
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"AWS4-HMAC-SHA256",
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AWS4_HMAC_SHA256,
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&datetime.format(LONG_DATETIME).to_string(),
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scope_string,
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&hex::encode(hasher.finalize().as_slice()),
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@ -234,11 +201,12 @@ pub fn string_to_sign(datetime: &DateTime<Utc>, scope_string: &str, canonical_re
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pub fn canonical_request(
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service: &'static str,
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method: &Method,
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uri: &hyper::Uri,
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headers: &HashMap<String, String>,
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signed_headers: &str,
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canonical_uri: &str,
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query: &QueryMap,
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headers: &HeaderMap,
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mut signed_headers: Vec<HeaderName>,
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content_sha256: &str,
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) -> String {
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) -> Result<String, Error> {
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// There seems to be evidence that in AWSv4 signatures, the path component is url-encoded
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// a second time when building the canonical request, as specified in this documentation page:
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// -> https://docs.aws.amazon.com/rolesanywhere/latest/userguide/authentication-sign-process.html
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|
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@ -268,49 +236,51 @@ pub fn canonical_request(
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// it mentions it in the comments (same link to the souce code as above).
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// We make the explicit choice of NOT normalizing paths in the K2V API because doing so
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// would make non-normalized paths invalid K2V partition keys, and we don't want that.
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let path: std::borrow::Cow<str> = if service != "s3" {
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uri_encode(uri.path(), false).into()
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let canonical_uri: std::borrow::Cow<str> = if service != "s3" {
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uri_encode(canonical_uri, false).into()
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} else {
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uri.path().into()
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canonical_uri.into()
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};
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[
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method.as_str(),
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&path,
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&canonical_query_string(uri),
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&canonical_header_string(headers, signed_headers),
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"",
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signed_headers,
|
||||
content_sha256,
|
||||
]
|
||||
.join("\n")
|
||||
}
|
||||
|
||||
fn canonical_header_string(headers: &HashMap<String, String>, signed_headers: &str) -> String {
|
||||
let signed_headers_vec = signed_headers.split(';').collect::<Vec<_>>();
|
||||
let mut items = headers
|
||||
.iter()
|
||||
.filter(|(key, _)| signed_headers_vec.contains(&key.as_str()))
|
||||
.collect::<Vec<_>>();
|
||||
items.sort_by(|(k1, _), (k2, _)| k1.cmp(k2));
|
||||
items
|
||||
.iter()
|
||||
.map(|(key, value)| key.to_lowercase() + ":" + value.trim())
|
||||
.collect::<Vec<_>>()
|
||||
.join("\n")
|
||||
}
|
||||
|
||||
fn canonical_query_string(uri: &hyper::Uri) -> String {
|
||||
if let Some(query) = uri.query() {
|
||||
let query_pairs = url::form_urlencoded::parse(query.as_bytes());
|
||||
let mut items = query_pairs
|
||||
.filter(|(key, _)| key != "X-Amz-Signature")
|
||||
.map(|(key, value)| uri_encode(&key, true) + "=" + &uri_encode(&value, true))
|
||||
.collect::<Vec<_>>();
|
||||
// Canonical query string from passed HeaderMap
|
||||
let canonical_query_string = {
|
||||
let mut items = Vec::with_capacity(query.len());
|
||||
for (key, value) in query.iter() {
|
||||
items.push(uri_encode(&key, true) + "=" + &uri_encode(&value, true));
|
||||
}
|
||||
items.sort();
|
||||
items.join("&")
|
||||
} else {
|
||||
"".to_string()
|
||||
};
|
||||
|
||||
// Canonical header string calculated from signed headers
|
||||
signed_headers.sort_by(|h1, h2| h1.as_str().cmp(h2.as_str()));
|
||||
let canonical_header_string = {
|
||||
let mut items = Vec::with_capacity(signed_headers.len());
|
||||
for name in signed_headers.iter() {
|
||||
let value = headers
|
||||
.get(name)
|
||||
.ok_or_bad_request(format!("signed header `{}` is not present", name))?
|
||||
.to_str()?;
|
||||
items.push((name, value));
|
||||
}
|
||||
items
|
||||
.iter()
|
||||
.map(|(key, value)| format!("{}:{}", key.as_str(), value.trim()))
|
||||
.collect::<Vec<_>>()
|
||||
.join("\n")
|
||||
};
|
||||
let signed_headers = signed_headers.join(";");
|
||||
|
||||
let list = [
|
||||
method.as_str(),
|
||||
&canonical_uri,
|
||||
&canonical_query_string,
|
||||
&canonical_header_string,
|
||||
"",
|
||||
&signed_headers,
|
||||
content_sha256,
|
||||
];
|
||||
Ok(list.join("\n"))
|
||||
}
|
||||
|
||||
pub fn parse_date(date: &str) -> Result<DateTime<Utc>, Error> {
|
||||
|
|
@ -322,28 +292,24 @@ pub fn parse_date(date: &str) -> Result<DateTime<Utc>, Error> {
|
|||
pub async fn verify_v4(
|
||||
garage: &Garage,
|
||||
service: &str,
|
||||
credential: &str,
|
||||
date: &DateTime<Utc>,
|
||||
signature: &str,
|
||||
auth: &Authorization,
|
||||
payload: &[u8],
|
||||
) -> Result<Key, Error> {
|
||||
let (key_id, scope) = parse_credential(credential)?;
|
||||
|
||||
let scope_expected = compute_scope(date, &garage.config.s3_api.s3_region, service);
|
||||
if scope != scope_expected {
|
||||
return Err(Error::AuthorizationHeaderMalformed(scope.to_string()));
|
||||
let scope_expected = compute_scope(&auth.date, &garage.config.s3_api.s3_region, service);
|
||||
if auth.scope != scope_expected {
|
||||
return Err(Error::AuthorizationHeaderMalformed(auth.scope.to_string()));
|
||||
}
|
||||
|
||||
let key = garage
|
||||
.key_table
|
||||
.get(&EmptyKey, &key_id)
|
||||
.get(&EmptyKey, &auth.key_id)
|
||||
.await?
|
||||
.filter(|k| !k.state.is_deleted())
|
||||
.ok_or_else(|| Error::forbidden(format!("No such key: {}", &key_id)))?;
|
||||
.ok_or_else(|| Error::forbidden(format!("No such key: {}", &auth.key_id)))?;
|
||||
let key_p = key.params().unwrap();
|
||||
|
||||
let mut hmac = signing_hmac(
|
||||
date,
|
||||
&auth.date,
|
||||
&key_p.secret_key,
|
||||
&garage.config.s3_api.s3_region,
|
||||
service,
|
||||
|
|
@ -351,9 +317,177 @@ pub async fn verify_v4(
|
|||
.ok_or_internal_error("Unable to build signing HMAC")?;
|
||||
hmac.update(payload);
|
||||
let our_signature = hex::encode(hmac.finalize().into_bytes());
|
||||
if signature != our_signature {
|
||||
if auth.signature != our_signature {
|
||||
return Err(Error::forbidden("Invalid signature".to_string()));
|
||||
}
|
||||
|
||||
Ok(key)
|
||||
}
|
||||
|
||||
// ============ Authorization header, or X-Amz-* query params =========
|
||||
|
||||
pub struct Authorization {
|
||||
key_id: String,
|
||||
scope: String,
|
||||
signed_headers: String,
|
||||
signature: String,
|
||||
content_sha256: String,
|
||||
date: DateTime<Utc>,
|
||||
}
|
||||
|
||||
impl Authorization {
|
||||
fn parse(headers: &HeaderMap) -> Result<Self, Error> {
|
||||
let authorization = headers
|
||||
.get(AUTHORIZATION)
|
||||
.ok_or_bad_request("Missing authorization header")?
|
||||
.to_str()?;
|
||||
|
||||
let (auth_kind, rest) = authorization
|
||||
.split_once(' ')
|
||||
.ok_or_bad_request("Authorization field to short")?;
|
||||
|
||||
if auth_kind != AWS4_HMAC_SHA256 {
|
||||
return Err(Error::bad_request("Unsupported authorization method"));
|
||||
}
|
||||
|
||||
let mut auth_params = HashMap::new();
|
||||
for auth_part in rest.split(',') {
|
||||
let auth_part = auth_part.trim();
|
||||
let eq = auth_part
|
||||
.find('=')
|
||||
.ok_or_bad_request("Field without value in authorization header")?;
|
||||
let (key, value) = auth_part.split_at(eq);
|
||||
auth_params.insert(key.to_string(), value.trim_start_matches('=').to_string());
|
||||
}
|
||||
|
||||
let cred = auth_params
|
||||
.get("Credential")
|
||||
.ok_or_bad_request("Could not find Credential in Authorization field")?;
|
||||
let signed_headers = auth_params
|
||||
.get("SignedHeaders")
|
||||
.ok_or_bad_request("Could not find SignedHeaders in Authorization field")?
|
||||
.to_string();
|
||||
let signature = auth_params
|
||||
.get("Signature")
|
||||
.ok_or_bad_request("Could not find Signature in Authorization field")?
|
||||
.to_string();
|
||||
|
||||
let content_sha256 = headers
|
||||
.get(X_AMZ_CONTENT_SH256)
|
||||
.ok_or_bad_request("Missing X-Amz-Content-Sha256 field")?;
|
||||
|
||||
let date = headers
|
||||
.get(X_AMZ_DATE)
|
||||
.ok_or_bad_request("Missing X-Amz-Date field")
|
||||
.map_err(Error::from)?
|
||||
.to_str()?;
|
||||
let date = parse_date(date)?;
|
||||
|
||||
if Utc::now() - date > Duration::hours(24) {
|
||||
return Err(Error::bad_request("Date is too old".to_string()));
|
||||
}
|
||||
|
||||
let (key_id, scope) = parse_credential(cred)?;
|
||||
let auth = Authorization {
|
||||
key_id,
|
||||
scope,
|
||||
signed_headers,
|
||||
signature,
|
||||
content_sha256: content_sha256.to_str()?.to_string(),
|
||||
date,
|
||||
};
|
||||
Ok(auth)
|
||||
}
|
||||
|
||||
fn parse_presigned(algorithm: &str, query: &QueryMap) -> Result<Self, Error> {
|
||||
if algorithm != AWS4_HMAC_SHA256 {
|
||||
return Err(Error::bad_request(
|
||||
"Unsupported authorization method".to_string(),
|
||||
));
|
||||
}
|
||||
|
||||
let cred = query
|
||||
.get(X_AMZ_CREDENTIAL.as_str())
|
||||
.ok_or_bad_request("X-Amz-Credential not found in query parameters")?;
|
||||
let signed_headers = query
|
||||
.get(X_AMZ_SIGNEDHEADERS.as_str())
|
||||
.ok_or_bad_request("X-Amz-SignedHeaders not found in query parameters")?;
|
||||
let signature = query
|
||||
.get(X_AMZ_SIGNATURE.as_str())
|
||||
.ok_or_bad_request("X-Amz-Signature not found in query parameters")?;
|
||||
|
||||
let duration = query
|
||||
.get(X_AMZ_EXPIRES.as_str())
|
||||
.ok_or_bad_request("X-Amz-Expires not found in query parameters")?
|
||||
.parse()
|
||||
.map_err(|_| Error::bad_request("X-Amz-Expires is not a number".to_string()))?;
|
||||
|
||||
if duration > 7 * 24 * 3600 {
|
||||
return Err(Error::bad_request(
|
||||
"X-Amz-Expires may not exceed a week".to_string(),
|
||||
));
|
||||
}
|
||||
|
||||
let date = query
|
||||
.get(X_AMZ_DATE.as_str())
|
||||
.ok_or_bad_request("Missing X-Amz-Date field")?;
|
||||
let date = parse_date(date)?;
|
||||
|
||||
if Utc::now() - date > Duration::seconds(duration) {
|
||||
return Err(Error::bad_request("Date is too old".to_string()));
|
||||
}
|
||||
|
||||
let (key_id, scope) = parse_credential(cred)?;
|
||||
Ok(Authorization {
|
||||
key_id,
|
||||
scope,
|
||||
signed_headers: signed_headers.to_string(),
|
||||
signature: signature.to_string(),
|
||||
content_sha256: UNSIGNED_PAYLOAD.to_string(),
|
||||
date,
|
||||
})
|
||||
}
|
||||
|
||||
pub(crate) fn parse_form(params: &HeaderMap) -> Result<Self, Error> {
|
||||
let credential = params
|
||||
.get(X_AMZ_CREDENTIAL)
|
||||
.ok_or_else(|| Error::forbidden("Garage does not support anonymous access yet"))?
|
||||
.to_str()?;
|
||||
let signature = params
|
||||
.get(X_AMZ_SIGNATURE)
|
||||
.ok_or_bad_request("No signature was provided")?
|
||||
.to_str()?
|
||||
.to_string();
|
||||
let date = params
|
||||
.get(X_AMZ_DATE)
|
||||
.ok_or_bad_request("No date was provided")?
|
||||
.to_str()?;
|
||||
let date = parse_date(date)?;
|
||||
|
||||
if Utc::now() - date > Duration::hours(24) {
|
||||
return Err(Error::bad_request("Date is too old".to_string()));
|
||||
}
|
||||
|
||||
let (key_id, scope) = parse_credential(credential)?;
|
||||
let auth = Authorization {
|
||||
key_id,
|
||||
scope,
|
||||
signed_headers: "".to_string(),
|
||||
signature,
|
||||
content_sha256: UNSIGNED_PAYLOAD.to_string(),
|
||||
date,
|
||||
};
|
||||
Ok(auth)
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_credential(cred: &str) -> Result<(String, String), Error> {
|
||||
let first_slash = cred
|
||||
.find('/')
|
||||
.ok_or_bad_request("Credentials does not contain '/' in authorization field")?;
|
||||
let (key_id, scope) = cred.split_at(first_slash);
|
||||
Ok((
|
||||
key_id.to_string(),
|
||||
scope.trim_start_matches('/').to_string(),
|
||||
))
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,12 +1,15 @@
|
|||
#![allow(dead_code)]
|
||||
|
||||
use std::collections::HashMap;
|
||||
use std::convert::TryFrom;
|
||||
use std::convert::{TryFrom, TryInto};
|
||||
|
||||
use chrono::{offset::Utc, DateTime};
|
||||
use hmac::{Hmac, Mac};
|
||||
use http_body_util::BodyExt;
|
||||
use http_body_util::Full as FullBody;
|
||||
use hyper::header::{
|
||||
HeaderMap, HeaderName, HeaderValue, AUTHORIZATION, CONTENT_ENCODING, CONTENT_LENGTH, HOST,
|
||||
};
|
||||
use hyper::{Method, Request, Response, Uri};
|
||||
use hyper_util::client::legacy::{connect::HttpConnector, Client};
|
||||
use hyper_util::rt::TokioExecutor;
|
||||
|
|
@ -173,54 +176,85 @@ impl<'a> RequestBuilder<'a> {
|
|||
.unwrap();
|
||||
let streaming_signer = signer.clone();
|
||||
|
||||
let mut all_headers = self.signed_headers.clone();
|
||||
let mut all_headers = self
|
||||
.signed_headers
|
||||
.iter()
|
||||
.map(|(k, v)| {
|
||||
(
|
||||
HeaderName::try_from(k).expect("invalid header name"),
|
||||
HeaderValue::try_from(v).expect("invalid header value"),
|
||||
)
|
||||
})
|
||||
.collect::<HeaderMap>();
|
||||
|
||||
let date = now.format(signature::LONG_DATETIME).to_string();
|
||||
all_headers.insert("x-amz-date".to_owned(), date);
|
||||
all_headers.insert("host".to_owned(), host);
|
||||
all_headers.insert(
|
||||
signature::payload::X_AMZ_DATE,
|
||||
HeaderValue::from_str(&date).unwrap(),
|
||||
);
|
||||
all_headers.insert(HOST, HeaderValue::from_str(&host).unwrap());
|
||||
|
||||
let body_sha = match self.body_signature {
|
||||
BodySignature::Unsigned => "UNSIGNED-PAYLOAD".to_owned(),
|
||||
BodySignature::Classic => hex::encode(garage_util::data::sha256sum(&self.body)),
|
||||
BodySignature::Streaming(size) => {
|
||||
all_headers.insert("content-encoding".to_owned(), "aws-chunked".to_owned());
|
||||
all_headers.insert(
|
||||
"x-amz-decoded-content-length".to_owned(),
|
||||
self.body.len().to_string(),
|
||||
CONTENT_ENCODING,
|
||||
HeaderValue::from_str("aws-chunked").unwrap(),
|
||||
);
|
||||
all_headers.insert(
|
||||
HeaderName::from_static("x-amz-decoded-content-length"),
|
||||
HeaderValue::from_str(&self.body.len().to_string()).unwrap(),
|
||||
);
|
||||
// Get lenght of body by doing the conversion to a streaming body with an
|
||||
// invalid signature (we don't know the seed) just to get its length. This
|
||||
// is a pretty lazy and inefficient way to do it, but it's enought for test
|
||||
// code.
|
||||
all_headers.insert(
|
||||
"content-length".to_owned(),
|
||||
CONTENT_LENGTH,
|
||||
to_streaming_body(&self.body, size, String::new(), signer.clone(), now, "")
|
||||
.len()
|
||||
.to_string(),
|
||||
.to_string()
|
||||
.try_into()
|
||||
.unwrap(),
|
||||
);
|
||||
|
||||
"STREAMING-AWS4-HMAC-SHA256-PAYLOAD".to_owned()
|
||||
}
|
||||
};
|
||||
all_headers.insert("x-amz-content-sha256".to_owned(), body_sha.clone());
|
||||
all_headers.insert(
|
||||
signature::payload::X_AMZ_CONTENT_SH256,
|
||||
HeaderValue::from_str(&body_sha).unwrap(),
|
||||
);
|
||||
|
||||
let mut signed_headers = all_headers
|
||||
.keys()
|
||||
.map(|k| k.as_ref())
|
||||
.collect::<Vec<&str>>();
|
||||
signed_headers.sort();
|
||||
let signed_headers = signed_headers.join(";");
|
||||
let mut signed_headers = all_headers.keys().cloned().collect::<Vec<_>>();
|
||||
signed_headers.sort_by(|h1, h2| h1.as_str().cmp(h2.as_str()));
|
||||
let signed_headers_str = signed_headers
|
||||
.iter()
|
||||
.map(ToString::to_string)
|
||||
.collect::<Vec<_>>()
|
||||
.join(";");
|
||||
|
||||
all_headers.extend(self.unsigned_headers.clone());
|
||||
all_headers.extend(self.unsigned_headers.iter().map(|(k, v)| {
|
||||
(
|
||||
HeaderName::try_from(k).expect("invalid header name"),
|
||||
HeaderValue::try_from(v).expect("invalid header value"),
|
||||
)
|
||||
}));
|
||||
|
||||
let uri = Uri::try_from(&uri).unwrap();
|
||||
let query = signature::payload::parse_query_map(&uri).unwrap();
|
||||
|
||||
let canonical_request = signature::payload::canonical_request(
|
||||
self.service,
|
||||
&self.method,
|
||||
&Uri::try_from(&uri).unwrap(),
|
||||
uri.path(),
|
||||
&query,
|
||||
&all_headers,
|
||||
&signed_headers,
|
||||
signed_headers,
|
||||
&body_sha,
|
||||
);
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
let string_to_sign = signature::payload::string_to_sign(&now, &scope, &canonical_request);
|
||||
|
||||
|
|
@ -228,14 +262,15 @@ impl<'a> RequestBuilder<'a> {
|
|||
let signature = hex::encode(signer.finalize().into_bytes());
|
||||
let authorization = format!(
|
||||
"AWS4-HMAC-SHA256 Credential={}/{},SignedHeaders={},Signature={}",
|
||||
self.requester.key.id, scope, signed_headers, signature
|
||||
self.requester.key.id, scope, signed_headers_str, signature
|
||||
);
|
||||
all_headers.insert(
|
||||
AUTHORIZATION,
|
||||
HeaderValue::from_str(&authorization).unwrap(),
|
||||
);
|
||||
all_headers.insert("authorization".to_owned(), authorization);
|
||||
|
||||
let mut request = Request::builder();
|
||||
for (k, v) in all_headers {
|
||||
request = request.header(k, v);
|
||||
}
|
||||
*request.headers_mut().unwrap() = all_headers;
|
||||
|
||||
let body = if let BodySignature::Streaming(size) = self.body_signature {
|
||||
to_streaming_body(&self.body, size, signature, streaming_signer, now, &scope)
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ async fn test_putobject_streaming() {
|
|||
.builder(bucket.clone())
|
||||
.method(Method::PUT)
|
||||
.path(STD_KEY.to_owned())
|
||||
.unsigned_headers(headers)
|
||||
.signed_headers(headers)
|
||||
.vhost_style(true)
|
||||
.body(vec![])
|
||||
.body_signature(BodySignature::Streaming(10))
|
||||
|
|
|
|||
Loading…
Reference in a new issue