mirror of
https://github.com/go-gitea/gitea.git
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Max P.
a4908d4af4
Adds OpenID Connect workload identity to Gitea Actions: jobs declaring `id-token: write` can request short-lived tokens to authenticate to cloud providers and other services without stored secrets. Tokens follow GitHub's format, so clients like `@actions/core` and existing trust policies carry over. - Issuer at `/api/actions/oidc` with discovery and JWKS, signed with a dedicated RS256 key - GitHub's claims, including `workflow_ref`, `job_workflow_ref` and the immutable `repo:owner@id/repo@id:ref:...` subject - `id-token: write` or `write-all` grant it, default permissions and fork pull requests never get it, owner and repository maximum permissions can disable it - Reusable workflows record the exact ref they were loaded from, and dispatch rejects refs that only resolve through a same-named tag - Generated signing keys are written atomically, and generated ES384 and ES512 OAuth2 keys use their own curves instead of P-256 - `github.ref_type` is `branch` for pull request runs, like on GitHub Fixes https://github.com/go-gitea/gitea/issues/26383 Fixes https://github.com/go-gitea/gitea/issues/33681 Docs: https://gitea.com/gitea/docs/pulls/526 Assisted-by: ChatGPT:gpt-5.6-sol, Claude Code:claude-opus-5-5 Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: silverwind <me@silverwind.io>
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package oauth2_provider
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import (
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"crypto/ecdsa"
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"encoding/base64"
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"math/big"
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"path/filepath"
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"testing"
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"github.com/golang-jwt/jwt/v5"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestECDSASigningKeyToJWK(t *testing.T) {
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for _, tc := range []struct {
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signingMethod jwt.SigningMethod
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expectedAlg string
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expectedCrv string
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coordLen int
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}{
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{jwt.SigningMethodES256, "ES256", "P-256", 32},
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{jwt.SigningMethodES384, "ES384", "P-384", 48},
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{jwt.SigningMethodES512, "ES512", "P-521", 66},
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} {
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t.Run(tc.expectedCrv, func(t *testing.T) {
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key, err := LoadOrCreateAsymmetricKey(filepath.Join(t.TempDir(), "key.pem"), tc.expectedAlg)
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require.NoError(t, err)
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privKey, ok := key.(*ecdsa.PrivateKey)
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require.True(t, ok)
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signingKey, err := newECDSASingingKey(tc.signingMethod, privKey)
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require.NoError(t, err)
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jwk, err := signingKey.ToJWK()
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require.NoError(t, err)
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assert.Equal(t, "EC", jwk["kty"])
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assert.Equal(t, tc.expectedAlg, jwk["alg"])
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assert.Equal(t, tc.expectedCrv, jwk["crv"])
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assert.NotEmpty(t, jwk["kid"])
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// Verify coordinates are the correct fixed length per RFC 7518 / SEC 1
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xBytes, err := base64.RawURLEncoding.DecodeString(jwk["x"])
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require.NoError(t, err)
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assert.Len(t, xBytes, tc.coordLen)
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yBytes, err := base64.RawURLEncoding.DecodeString(jwk["y"])
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require.NoError(t, err)
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assert.Len(t, yBytes, tc.coordLen)
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// Verify the decoded coordinates reconstruct the original public key point
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pubKey, ok := privKey.Public().(*ecdsa.PublicKey)
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require.True(t, ok)
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assert.Equal(t, 0, new(big.Int).SetBytes(xBytes).Cmp(pubKey.X))
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assert.Equal(t, 0, new(big.Int).SetBytes(yBytes).Cmp(pubKey.Y))
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})
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}
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}
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