fix: recognize Gitea's 401 reply for an unregistered runner (#1287)

Since https://github.com/go-gitea/gitea/pull/39578 (backported to v28), Gitea answers an unregistered runner with a Connect `Unauthenticated` error instead of a gRPC status wrapped as `Unknown`. `IsRegistrationRejected` missed it, so an ephemeral runner kept its spent registration file and failed on every restart. This also fails the `gitea/gitea:main-nightly` e2e job.

Match on the `unregistered runner` message suffix, which both shapes share. The code can't distinguish Gitea from a proxy, because a proxy's 401 with a JSON body also decodes as a wire `Unauthenticated` error.

Written by Claude Code.

Reviewed-on: https://gitea.com/gitea/runner/pulls/1287
Reviewed-by: bircni <[email protected]>
Co-authored-by: silverwind <[email protected]>
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silverwind authored and bircni committed 2026-10-05 03:34:00 +00:00
1 parent a284a62d96
commit 436d0d2942
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@@ -128,6 +128,7 @@ func TestDaemonRemovesOnlyConsumedEphemeralRegistration(t *testing.T) {
{"ephemeral interrupted before task", true, true, nil, nil, false},
{"persistent once", false, false, nil, nil, false},
{"ephemeral rejected on fetch", true, false, nil, errUnregisteredRunner, true},
{"ephemeral rejected on fetch with 401", true, false, nil, connect.NewError(connect.CodeUnauthenticated, errors.New("unregistered runner")), true},
{"ephemeral proxy 401 on fetch", true, false, nil, connect.NewError(connect.CodeUnauthenticated, errors.New("HTTP status 401 Unauthorized")), false},
{"ephemeral rejected on declare", true, false, errUnregisteredRunner, nil, true},
{"persistent rejected on declare", false, false, errUnregisteredRunner, nil, false},