jojo/services/convert
forgejo-backport-action d3dd397001 [v15.0/forgejo] fix: get tag must return the tag signature instead of commit signature (#12395)
**Backport:** https://codeberg.org/forgejo/forgejo/pulls/12351

## Fix: `GET /api/v1/repos/{owner}/{repo}/git/tags/{sha}` returns empty verification for signed tags

### Problem

When an annotated tag is signed (GPG or SSH) but the underlying commit is **not** signed, the API endpoint `GET /repos/{owner}/{repo}/git/tags/{sha}` returns an empty `verification.signature` field.

This is because `ToAnnotatedTag` was calling `ToVerification(ctx, c)` with the **commit** object, which checks the commit's signature — not the tag's own signature. Since the commit is unsigned, the API returns `signature: ""` and `verified: false`.

This causes issues for tools that rely on the tag signature from the API to validate that a tag push event is from a trusted source.

### Fix

`ToAnnotatedTag` now checks if the tag has its own signature (`t.Signature != nil`). If so, it uses `ParseTagWithSignature` to verify the tag's signature and populates the `verification` field from the tag. Otherwise, it falls back to the commit signature (existing behavior for unsigned/lightweight tags).

Co-authored-by: steven.guiheux <steven.guiheux@ovhcloud.com>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/12395
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org>
2026-05-03 06:38:17 +02:00
..
action.go bug: unify RepoActionRun and ActionRun structs (#8250) 2025-06-23 07:54:32 +02:00
activity.go chore: branding import path (#7337) 2025-03-27 19:40:14 +00:00
activitypub_person.go Add ActivityPub Person follow from distant (#8720) 2025-08-03 11:55:01 +02:00
activitypub_user_action.go [v15.0/forgejo]: chore: add modernizer linter (#11949) 2026-04-02 16:54:46 +02:00
attachment.go fix(ui): Add pasted images to dropzone 2025-06-30 12:42:22 +02:00
attachment_test.go fix(ui): Add pasted images to dropzone 2025-06-30 12:42:22 +02:00
convert.go [v15.0/forgejo] fix: get tag must return the tag signature instead of commit signature (#12395) 2026-05-03 06:38:17 +02:00
convert_test.go [v15.0/forgejo] fix: get tag must return the tag signature instead of commit signature (#12395) 2026-05-03 06:38:17 +02:00
git_commit.go chore: ensure consistent import aliasing for services and models (#10253) 2025-11-30 17:00:57 +01:00
git_commit_test.go Update module github.com/golangci/golangci-lint/cmd/golangci-lint to v2 (forgejo) (#7367) 2025-03-28 22:22:21 +00:00
issue.go chore: branding import path (#7337) 2025-03-27 19:40:14 +00:00
issue_comment.go [v15.0/forgejo] perf: bulk load resolvers & reactions on pull request comments (#11995) 2026-04-05 17:30:39 +02:00
issue_test.go test: prevent XSS for label rendering 2025-06-27 13:27:06 +02:00
main_test.go chore: move all test blank imports in a single package (#10662) 2026-01-02 05:32:32 +01:00
mirror.go feat: add configuration to only push mirror selected branches (#7823) 2025-07-12 00:39:35 +02:00
notification.go feat: rework notification table (#9926) 2025-11-29 23:03:56 +01:00
package.go chore: branding import path (#7337) 2025-03-27 19:40:14 +00:00
pull.go feat: improve getting shortstat (#9587) 2025-10-10 14:15:38 +02:00
pull_review.go Update module github.com/golangci/golangci-lint/cmd/golangci-lint to v2 (forgejo) (#7367) 2025-03-28 22:22:21 +00:00
pull_test.go Update module github.com/golangci/golangci-lint/cmd/golangci-lint to v2 (forgejo) (#7367) 2025-03-28 22:22:21 +00:00
quota.go chore: ensure consistent import aliasing for services and models (#10253) 2025-11-30 17:00:57 +01:00
release.go feat: make upload URL compatible with GitHub API (#9285) 2025-09-15 15:53:35 +02:00
release_test.go feat: make upload URL compatible with GitHub API (#9285) 2025-09-15 15:53:35 +02:00
repository.go feat: add wiki git info to API (#11589) 2026-03-19 01:21:50 +01:00
status.go chore: branding import path (#7337) 2025-03-27 19:40:14 +00:00
user.go chore: branding import path (#7337) 2025-03-27 19:40:14 +00:00
user_test.go Update module github.com/golangci/golangci-lint/cmd/golangci-lint to v2 (forgejo) (#7367) 2025-03-28 22:22:21 +00:00
utils.go Add support for migrating from Pagure (#8513) 2025-08-11 16:56:26 +02:00
utils_test.go Update module github.com/golangci/golangci-lint/cmd/golangci-lint to v2 (forgejo) (#7367) 2025-03-28 22:22:21 +00:00
wiki.go chore: branding import path (#7337) 2025-03-27 19:40:14 +00:00