1 files changed, 99 insertions, 0 deletions
diff --git a/services/asymkey/commit_test.go b/services/asymkey/commit_test.go
new file mode 100644
index 0000000000..6edba1e90a
--- /dev/null
+++ b/services/asymkey/commit_test.go
@@ -0,0 +1,99 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"strings"
+	"testing"
+
+	asymkey_model "code.gitea.io/gitea/models/asymkey"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseCommitWithSSHSignature(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	// Here we only need to do some tests that "tests/integration/gpg_ssh_git_test.go" doesn't cover
+
+	// -----BEGIN OPENSSH PRIVATE KEY-----
+	// b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+	// QyNTUxOQAAACC6T6zF0oPak8dOIzzT1kXB7LrcsVo04SKc3GjuvMllZwAAAJgy08upMtPL
+	// qQAAAAtzc2gtZWQyNTUxOQAAACC6T6zF0oPak8dOIzzT1kXB7LrcsVo04SKc3GjuvMllZw
+	// AAAEDWqPHTH51xb4hy1y1f1VeWL/2A9Q0b6atOyv5fx8x5prpPrMXSg9qTx04jPNPWRcHs
+	// utyxWjThIpzcaO68yWVnAAAAEXVzZXIyQGV4YW1wbGUuY29tAQIDBA==
+	// -----END OPENSSH PRIVATE KEY-----
+	sshPubKey, err := asymkey_model.AddPublicKey(t.Context(), 999, "user-ssh-key-any-name", "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILpPrMXSg9qTx04jPNPWRcHsutyxWjThIpzcaO68yWVn", 0)
+	require.NoError(t, err)
+	_, err = db.GetEngine(t.Context()).ID(sshPubKey.ID).Cols("verified").Update(&asymkey_model.PublicKey{Verified: true})
+	require.NoError(t, err)
+
+	t.Run("UserSSHKey", func(t *testing.T) {
+		commit, err := git.CommitFromReader(nil, git.Sha1ObjectFormat.EmptyObjectID(), strings.NewReader(`tree a3b1fad553e0f9a2b4a58327bebde36c7da75aa2
+author user2 <user2@example.com> 1752194028 -0700
+committer user2 <user2@example.com> 1752194028 -0700
+gpgsig -----BEGIN SSH SIGNATURE-----
+ U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAguk+sxdKD2pPHTiM809ZFwey63L
+ FaNOEinNxo7rzJZWcAAAADZ2l0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5
+ AAAAQBfX+6mcKZBnXckwHcBFqRuXMD3vTKi1yv5wgrqIxTyr2LWB97xxmO92cvjsr0POQ2
+ 2YA7mQS510Cg2s1uU1XAk=
+ -----END SSH SIGNATURE-----
+
+init project
+`))
+		require.NoError(t, err)
+
+		// the committingUser is guaranteed by the caller, parseCommitWithSSHSignature doesn't do any more checks
+		committingUser := &user_model.User{ID: 999, Name: "user-x"}
+		ret := parseCommitWithSSHSignature(t.Context(), commit, committingUser)
+		require.NotNil(t, ret)
+		assert.True(t, ret.Verified)
+		assert.Equal(t, committingUser.Name+" / "+sshPubKey.Fingerprint, ret.Reason)
+		assert.False(t, ret.Warning)
+		assert.Equal(t, committingUser, ret.SigningUser)
+		assert.Equal(t, committingUser, ret.CommittingUser)
+		assert.Equal(t, sshPubKey.ID, ret.SigningSSHKey.ID)
+	})
+
+	t.Run("TrustedSSHKey", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Repository.Signing.SigningName, "gitea")()
+		defer test.MockVariableValue(&setting.Repository.Signing.SigningEmail, "gitea@fake.local")()
+		defer test.MockVariableValue(&setting.Repository.Signing.TrustedSSHKeys, []string{"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH6Y4idVaW3E+bLw1uqoAfJD7o5Siu+HqS51E9oQLPE9"})()
+
+		commit, err := git.CommitFromReader(nil, git.Sha1ObjectFormat.EmptyObjectID(), strings.NewReader(`tree 9a93ffa76e8b72bdb6431910b3a506fa2b39f42e
+author User Two <user2@example.com> 1749230009 +0200
+committer User Two <user2@example.com> 1749230009 +0200
+gpgsig -----BEGIN SSH SIGNATURE-----
+ U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgfpjiJ1VpbcT5svDW6qgB8kPujl
+ KK74epLnUT2hAs8T0AAAADZ2l0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5
+ AAAAQDX2t2iHuuLxEWHLJetYXKsgayv3c43r0pJNfAzdLN55Q65pC5M7rG6++gT2bxcpOu
+ Y6EXbpLqia9sunEF3+LQY=
+ -----END SSH SIGNATURE-----
+
+Initial commit with signed file
+`))
+		require.NoError(t, err)
+		committingUser := &user_model.User{
+			ID:    2,
+			Name:  "User Two",
+			Email: "user2@example.com",
+		}
+		ret := parseCommitWithSSHSignature(t.Context(), commit, committingUser)
+		require.NotNil(t, ret)
+		assert.True(t, ret.Verified)
+		assert.False(t, ret.Warning)
+		assert.Equal(t, committingUser, ret.CommittingUser)
+		if assert.NotNil(t, ret.SigningUser) {
+			assert.Equal(t, "gitea", ret.SigningUser.Name)
+			assert.Equal(t, "gitea@fake.local", ret.SigningUser.Email)
+		}
+	})
+}