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87474c2f218bc77a2690785f06d86571b3aafbe0
4
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Chris Lu
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87474c2f21 |
s3: let attached policies authorize CreateBucket (#11049)
* s3: resolve admin bucket subresources to their specific S3 actions Encryption, requestPayment, publicAccessBlock and ownershipControls requests reached the policy engines as s3:*, so only a policy granting all of s3 could authorize them. Map each subresource to its AWS action, with DELETE sharing the PUT permission as AWS does. Claude-Session: https://claude.ai/code/session_01XH7iM88ZqWMEvsLB8tkWPQ * s3: authorize CreateBucket as s3:CreateBucket in the policy engine A plain bucket-level PUT is registered with ACTION_ADMIN, which resolved to s3:*, so no attached policy short of s3:* could match it. Federated sessions whose policy explicitly allowed s3:CreateBucket were always denied while the same policy worked for object operations. Resolve it to s3:CreateBucket, like DeleteBucket already resolves. Claude-Session: https://claude.ai/code/session_01XH7iM88ZqWMEvsLB8tkWPQ |
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Chris Lu
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e8020910db |
iam: authorize IAM management actions as IAM actions (#10593)
* s3: keep a non-S3 action out of the request-shape resolver
ResolveS3Action reads the request shape before it looks at the base action, so
an iam: or sts: action on a request that happens to carry an S3 query parameter
came back as the S3 action for that parameter. An action that already names its
service is resolved; there is no S3 request shape to read for it.
* iam: authorize the standalone IAM server's actions as IAM, not as S3
The standalone `weed iam` server wrapped its single POST / route in the generic
S3 Auth middleware with ACTION_ADMIN. The route has no {bucket}, so the check
ran with an empty bucket and resolved to a coarse S3 action rather than the IAM
one. The embedded IAM surface checks iam:<Action>; the standalone one was never
updated to match.
Both now go through one authorization function, so they cannot drift apart
again. It also rejects the anonymous identity, which has no user of its own to
run a self-service action against, and reads UserName from the body only, where
the handlers read it from.
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Chris Lu
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059bee683f |
feat(s3): add STS GetFederationToken support (#8891)
* feat(s3): add STS GetFederationToken support Implement the AWS STS GetFederationToken API, which allows long-term IAM users to obtain temporary credentials scoped down by an optional inline session policy. This is useful for server-side applications that mint per-user temporary credentials. Key behaviors: - Requires SigV4 authentication from a long-term IAM user - Rejects calls from temporary credentials (session tokens) - Name parameter (2-64 chars) identifies the federated user - DurationSeconds supports 900-129600 (15 min to 36 hours, default 12h) - Optional inline session policy for permission scoping - Caller's attached policies are embedded in the JWT token - Returns federated user ARN: arn:aws:sts::<account>:federated-user/<Name> No performance impact on the S3 hot path — credential vending is a separate control-plane operation, and all policy data is embedded in the stateless JWT token. * fix(s3): address GetFederationToken PR review feedback - Fix Name validation: max 32 chars (not 64) per AWS spec, add regex validation for [\w+=,.@-]+ character whitelist - Refactor parseDurationSeconds into parseDurationSecondsWithBounds to eliminate duplicated duration parsing logic - Add sts:GetFederationToken permission check via VerifyActionPermission mirroring the AssumeRole authorization pattern - Change GetPoliciesForUser to return ([]string, error) so callers fail closed on policy-resolution failures instead of silently returning nil - Move temporary-credentials rejection before SigV4 verification for early rejection and proper test coverage - Update tests: verify specific error message for temp cred rejection, add regex validation test cases (spaces, slashes rejected) * refactor(s3): use sts.Action* constants instead of hard-coded strings Replace hard-coded "sts:AssumeRole" and "sts:GetFederationToken" strings in VerifyActionPermission calls with sts.ActionAssumeRole and sts.ActionGetFederationToken package constants. * fix(s3): pass through sts: prefix in action resolver and merge policies Two fixes: 1. mapBaseActionToS3Format now passes through "sts:" prefix alongside "s3:" and "iam:", preventing sts:GetFederationToken from being rewritten to s3:sts:GetFederationToken in VerifyActionPermission. This also fixes the existing sts:AssumeRole permission checks. 2. GetFederationToken policy embedding now merges identity.PolicyNames (from SigV4 identity) with policies from the IAM manager (which may include group-attached policies), deduplicated via a map. Previously the IAM manager lookup was skipped when identity.PolicyNames was non-empty, causing group policies to be omitted from the token. * test(s3): add integration tests for sts: action passthrough and policy merge Action resolver tests: - TestMapBaseActionToS3Format_ServicePrefixPassthrough: verifies s3:, iam:, and sts: prefixed actions pass through unchanged while coarse actions (Read, Write) are mapped to S3 format - TestResolveS3Action_STSActionsPassthrough: verifies sts:AssumeRole, sts:GetFederationToken, sts:GetCallerIdentity pass through ResolveS3Action unchanged with both nil and real HTTP requests Policy merge tests: - TestGetFederationToken_GetPoliciesForUser: tests IAMManager.GetPoliciesForUser with no user store (error), missing user, user with policies, user without - TestGetFederationToken_PolicyMergeAndDedup: tests that identity.PolicyNames and IAM-manager-resolved policies are merged and deduplicated (SharedPolicy appears in both sources, result has 3 unique policies) - TestGetFederationToken_PolicyMergeNoManager: tests that when IAM manager is unavailable, identity.PolicyNames alone are embedded * test(s3): add end-to-end integration tests for GetFederationToken Add integration tests that call GetFederationToken using real AWS SigV4 signed HTTP requests against a running SeaweedFS instance, following the existing pattern in test/s3/iam/s3_sts_assume_role_test.go. Tests: - TestSTSGetFederationTokenValidation: missing name, name too short/long, invalid characters, duration too short/long, malformed policy, anonymous rejection (7 subtests) - TestSTSGetFederationTokenRejectTemporaryCredentials: obtains temp creds via AssumeRole then verifies GetFederationToken rejects them - TestSTSGetFederationTokenSuccess: basic success, custom 1h duration, 36h max duration with expiration time verification - TestSTSGetFederationTokenWithSessionPolicy: creates a bucket, obtains federated creds with GetObject-only session policy, verifies GetObject succeeds and PutObject is denied using the AWS SDK S3 client |
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Chris LuandClaude Opus 4.6
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10a30a83e1 |
s3api: add GetObjectAttributes API support (#8504)
* s3api: add error code and header constants for GetObjectAttributes Add ErrInvalidAttributeName error code and header constants (X-Amz-Object-Attributes, X-Amz-Max-Parts, X-Amz-Part-Number-Marker, X-Amz-Delete-Marker) needed by the S3 GetObjectAttributes API. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: implement GetObjectAttributes handler Add GetObjectAttributesHandler that returns selected object metadata (ETag, Checksum, StorageClass, ObjectSize, ObjectParts) without returning the object body. Follows the same versioning and conditional header patterns as HeadObjectHandler. The handler parses the X-Amz-Object-Attributes header to determine which attributes to include in the XML response, and supports ObjectParts pagination via X-Amz-Max-Parts and X-Amz-Part-Number-Marker. Ref: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectAttributes.html Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: register GetObjectAttributes route Register the GET /{object}?attributes route for the GetObjectAttributes API, placed before other object query routes to ensure proper matching. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: add integration tests for GetObjectAttributes Test coverage: - Basic: simple object with all attribute types - MultipartObject: multipart upload with parts pagination - SelectiveAttributes: requesting only specific attributes - InvalidAttribute: server rejects invalid attribute names - NonExistentObject: returns NoSuchKey for missing objects Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: add versioned object test for GetObjectAttributes Test puts two versions of the same object and verifies that: - GetObjectAttributes returns the latest version by default - GetObjectAttributes with versionId returns the specific version - ObjectSize and VersionId are correct for each version Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: fix combined conditional header evaluation per RFC 7232 Per RFC 7232: - Section 3.4: If-Unmodified-Since MUST be ignored when If-Match is present (If-Match is the more accurate replacement) - Section 3.3: If-Modified-Since MUST be ignored when If-None-Match is present (If-None-Match is the more accurate replacement) Previously, all four conditional headers were evaluated independently. This caused incorrect 412 responses when If-Match succeeded but If-Unmodified-Since failed (should return 200 per AWS S3 behavior). Fix applied to both validateConditionalHeadersForReads (GET/HEAD) and validateConditionalHeaders (PUT) paths. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: add conditional header combination tests for GetObjectAttributes Test the RFC 7232 combined conditional header semantics: - If-Match=true + If-Unmodified-Since=false => 200 (If-Unmodified-Since ignored) - If-None-Match=false + If-Modified-Since=true => 304 (If-Modified-Since ignored) - If-None-Match=true + If-Modified-Since=false => 200 (If-Modified-Since ignored) - If-Match=true + If-Unmodified-Since=true => 200 - If-Match=false => 412 regardless Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: document Checksum attribute as not yet populated Checksum is accepted in validation (so clients requesting it don't get a 400 error, matching AWS behavior for objects without checksums) but SeaweedFS does not yet store S3 checksums. Add a comment explaining this and noting where to populate it when checksum storage is added. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: add s3:GetObjectAttributes IAM action for ?attributes query Previously, GET /{object}?attributes resolved to s3:GetObject via the fallback path since resolveFromQueryParameters had no case for the "attributes" query parameter. Add S3_ACTION_GET_OBJECT_ATTRIBUTES constant ("s3:GetObjectAttributes") and a branch in resolveFromQueryParameters to return it for GET requests with the "attributes" query parameter, so IAM policies can distinguish GetObjectAttributes from GetObject. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: evaluate conditional headers after version resolution Move conditional header evaluation (If-Match, If-None-Match, etc.) to after the version resolution step in GetObjectAttributesHandler. This ensures that when a specific versionId is requested, conditions are checked against the correct version entry rather than always against the latest version. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: use bounded HTTP client in GetObjectAttributes tests Replace http.DefaultClient with a timeout-aware http.Client (10s) in the signedGetObjectAttributes helper and testGetObjectAttributesInvalid to prevent tests from hanging indefinitely. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: check attributes query before versionId in action resolver Move the GetObjectAttributes action check before the versionId check in resolveFromQueryParameters. This fixes GET /bucket/key?attributes&versionId=xyz being incorrectly classified as s3:GetObjectVersion instead of s3:GetObjectAttributes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * s3api: add tests for versioned conditional headers and action resolver Add integration test that verifies conditional headers (If-Match, If-None-Match) are evaluated against the requested version entry, not the latest version. This covers the fix in |