Send Tag signature as a separate fieldid-extract-tag-signature

Instead of sending it as a part of the tag message,
let's extract it in a separate field

Changelog: added

7 files changed, 106 insertions, 64 deletions

diff --git a/internal/git/catfile/parser.go b/internal/git/catfile/parser.go
index 359be4bc9..259419734 100644
--- a/internal/git/catfile/parser.go
+++ b/internal/git/catfile/parser.go
@@ -276,17 +276,19 @@ func (p *parser) parseTag(object git.Object, name []byte) (*gitalypb.Tag, tagged
 			)
 		}
 
-		tag.Message = message
-		tag.MessageSize = int64(len(message))
-
-		if signature, _ := ExtractTagSignature(message); signature != nil {
+		if signature, restContent := ExtractTagSignature(message); signature != nil {
 			length := bytes.Index(signature, []byte("\n"))
 
 			if length > 0 {
-				signature := string(signature[:length])
-				tag.SignatureType = detectSignatureType(signature)
+				tag.SignatureType = detectSignatureType(string(signature[:length]))
+				tag.Signature = signature
+
+				message = restContent
 			}
 		}
+
+		tag.Message = message
+		tag.MessageSize = int64(len(message))
 	}
 
 	return tag, tagged, nil
diff --git a/internal/git/catfile/parser_test.go b/internal/git/catfile/parser_test.go
index 59afbb127..a44a1d97a 100644
--- a/internal/git/catfile/parser_test.go
+++ b/internal/git/catfile/parser_test.go
@@ -335,16 +335,16 @@ AAAAQLSyv010gOFwIs9QTtDvlfIEWiAw2iQL/T9usGcxHXn/W5l0cOFCd7O+WaMDg0t0nW
 fF3T79iV8paT4/OfX8Ygg=
 -----END SSH SIGNATURE-----`, oid),
 			expectedTag: &gitalypb.Tag{
-				Id:   "1234",
-				Name: []byte("v2.6.16.28"),
-				Message: []byte(`This tag is signed with SSH
------BEGIN SSH SIGNATURE-----
+				Id:          "1234",
+				Name:        []byte("v2.6.16.28"),
+				Message:     []byte("This tag is signed with SSH\n"),
+				MessageSize: 28,
+				Signature: []byte(`-----BEGIN SSH SIGNATURE-----
 U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgtc+Qk8jhMwVZk/jFEFCM16LNQb
 30q5kK30bbetfjyTMAAAADZ2l0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5
 AAAAQLSyv010gOFwIs9QTtDvlfIEWiAw2iQL/T9usGcxHXn/W5l0cOFCd7O+WaMDg0t0nW
 fF3T79iV8paT4/OfX8Ygg=
 -----END SSH SIGNATURE-----`),
-				MessageSize: 321,
 				Tagger: &gitalypb.CommitAuthor{
 					Name:  []byte("Adrian Bunk"),
 					Email: []byte("bunk@stusta.de"),
diff --git a/internal/gitaly/service/ref/find_all_tags_test.go b/internal/gitaly/service/ref/find_all_tags_test.go
index a1c118140..01218c6d1 100644
--- a/internal/gitaly/service/ref/find_all_tags_test.go
+++ b/internal/gitaly/service/ref/find_all_tags_test.go
@@ -137,8 +137,9 @@ func TestFindAllTags_successful(t *testing.T) {
 			Name:         []byte("v1.1.1"),
 			Id:           "8f03acbcd11c53d9c9468078f32a2622005a4841",
 			TargetCommit: testhelper.GitLabTestCommit("189a6c924013fc3fe40d6f1ec1dc20214183bc97"),
-			Message:      []byte("x509 signed tag\n-----BEGIN SIGNED MESSAGE-----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\nSDH1i0K32NyFbnh0BSos7njq7ELqKlYBsoB/sZfaH2vKy5U=\n-----END SIGNED MESSAGE-----"),
-			MessageSize:  6494,
+			Message:      []byte("x509 signed tag"),
+			MessageSize:  15,
+			Signature:    []byte("-----BEGIN SIGNED MESSAGE-----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\nSDH1i0K32NyFbnh0BSos7njq7ELqKlYBsoB/sZfaH2vKy5U=\n-----END SIGNED MESSAGE-----"),
 			Tagger: &gitalypb.CommitAuthor{
 				Name:     []byte("Roger Meier"),
 				Email:    []byte("r.meier@siemens.com"),
@@ -152,7 +153,7 @@ func TestFindAllTags_successful(t *testing.T) {
 			Id:           truncatedPGPTagID,
 			TargetCommit: gitCommit,                     // 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
 			Message:      truncatedPGPTagMsg[146:10386], // first 10240 bytes of tag message
-			MessageSize:  11148,
+			MessageSize:  10753,
 			Tagger: &gitalypb.CommitAuthor{
 				Name:     []byte(gittest.DefaultCommitterName),
 				Email:    []byte(gittest.DefaultCommitterMail),
@@ -160,6 +161,23 @@ func TestFindAllTags_successful(t *testing.T) {
 				Timezone: []byte("+0100"),
 			},
 			SignatureType: gitalypb.SignatureType_PGP,
+			Signature: []byte(`-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1
+
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+-----END PGP SIGNATURE-----`),
 		},
 		{
 			Name:        []byte("v1.2.0"),
diff --git a/internal/gitaly/service/ref/find_tag_test.go b/internal/gitaly/service/ref/find_tag_test.go
index 5eb259016..e3495d920 100644
--- a/internal/gitaly/service/ref/find_tag_test.go
+++ b/internal/gitaly/service/ref/find_tag_test.go
@@ -112,8 +112,9 @@ func TestFindTag_successful(t *testing.T) {
 			Name:         []byte("v1.1.1"),
 			Id:           "8f03acbcd11c53d9c9468078f32a2622005a4841",
 			TargetCommit: testhelper.GitLabTestCommit("189a6c924013fc3fe40d6f1ec1dc20214183bc97"),
-			Message:      []byte("x509 signed tag\n-----BEGIN SIGNED MESSAGE-----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\nF5Foorb3aglEMA0GCSqGSIb3DQEBCwUAA4IC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SIGNED MESSAGE-----"),
-			MessageSize:  6494,
+			Message:      []byte("x509 signed tag"),
+			Signature:    []byte("-----BEGIN SIGNED MESSAGE-----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\nSDH1i0K32NyFbnh0BSos7njq7ELqKlYBsoB/sZfaH2vKy5U=\n-----END SIGNED MESSAGE-----"),
+			MessageSize:  15,
 			Tagger: &gitalypb.CommitAuthor{
 				Name:     []byte("Roger Meier"),
 				Email:    []byte("r.meier@siemens.com"),
diff --git a/internal/gitaly/service/ref/testdata/truncated_pgp_msg.patch b/internal/gitaly/service/ref/testdata/truncated_pgp_msg.patch
index 573cb4bb2..73e46a267 100644
--- a/internal/gitaly/service/ref/testdata/truncated_pgp_msg.patch
+++ b/internal/gitaly/service/ref/testdata/truncated_pgp_msg.patch
@@ -177,6 +177,15 @@ sagittis a erat. Integer sem leo, accumsan vitae odio eget, sagittis
 rutrum enim. Aliquam sollicitudin velit nulla, vitae tempor metus
 accumsan pretium. Orci varius natoque penatibus et magnis dis parturient
 montes, nascetur ridiculus mus. Praesent vel nulla mi. Lorem ipsum dolor.
+
+Pretium nibh ipsum consequat nisl vel pretium lectus quam id. Auctor
+urna nunc id cursus metus aliquam. Hendrerit dolor magna eget est.
+Leo vel orci porta non pulvinar. Amet venenatis urna cursus eget
+nunc scelerisque. Id leo in vitae turpis massa sed elementum tempus.
+Pharetra diam sit amet nisl suscipit adipiscing bibendum est. Faucibus
+ornare suspendisse sed nisi. Fringilla phasellus faucibus scelerisque
+eleifend donec pretium vulputate. Purus in massa tempor nec feugiat nisl
+pretium. Mi ipsum faucibus vitae aliquet.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
diff --git a/proto/go/gitalypb/shared.pb.go b/proto/go/gitalypb/shared.pb.go
index 429152af4..56fb72625 100644
--- a/proto/go/gitalypb/shared.pb.go
+++ b/proto/go/gitalypb/shared.pb.go
@@ -822,6 +822,8 @@ type Tag struct {
 	Tagger *CommitAuthor `protobuf:"bytes,6,opt,name=tagger,proto3" json:"tagger,omitempty"`
 	// This comment is left unintentionally blank.
 	SignatureType SignatureType `protobuf:"varint,7,opt,name=signature_type,json=signatureType,proto3,enum=gitaly.SignatureType" json:"signature_type,omitempty"`
+	// This comment is left unintentionally blank.
+	Signature []byte `protobuf:"bytes,8,opt,name=signature,proto3" json:"signature,omitempty"`
 }
 
 func (x *Tag) Reset() {
@@ -905,6 +907,13 @@ func (x *Tag) GetSignatureType() SignatureType {
 	return SignatureType_NONE
 }
 
+func (x *Tag) GetSignature() []byte {
+	if x != nil {
+		return x.Signature
+	}
+	return nil
+}
+
 // This comment is left unintentionally blank.
 type User struct {
 	state         protoimpl.MessageState
@@ -1285,7 +1294,7 @@ var file_shared_proto_rawDesc = []byte{
 	0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x36, 0x0a, 0x0d, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74,
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+	0x52, 0x0c, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x43, 0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x22, 0xa8,
 	0x02, 0x0a, 0x03, 0x54, 0x61, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01,
 	0x20, 0x01, 0x28, 0x0c, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64,
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@@ -1302,53 +1311,54 @@ var file_shared_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/proto/shared.proto b/proto/shared.proto
index 7289492a8..a1fd5c387 100644
--- a/proto/shared.proto
+++ b/proto/shared.proto
@@ -171,6 +171,8 @@ message Tag {
   CommitAuthor tagger = 6;
   // This comment is left unintentionally blank.
   SignatureType signature_type = 7;
+  // This comment is left unintentionally blank.
+  bytes signature = 8;
 }
 
 // This comment is left unintentionally blank.