1 files changed, 40 insertions, 3 deletions
diff --git a/models/gpg_key.go b/models/gpg_key.go
index 643aa6822c..a32312a12d 100644
--- a/models/gpg_key.go
+++ b/models/gpg_key.go
@@ -374,6 +374,7 @@ type CommitVerification struct {
 	CommittingUser *User
 	SigningEmail   string
 	SigningKey     *GPGKey
+	TrustStatus    string
 }
 
 // SignCommit represents a commit with validation of signature.
@@ -759,18 +760,54 @@ func verifyWithGPGSettings(gpgSettings *git.GPGSettings, sig *packet.Signature,
 }
 
 // ParseCommitsWithSignature checks if signaute of commits are corresponding to users gpg keys.
-func ParseCommitsWithSignature(oldCommits *list.List) *list.List {
+func ParseCommitsWithSignature(oldCommits *list.List, repository *Repository) *list.List {
 	var (
 		newCommits = list.New()
 		e          = oldCommits.Front()
 	)
+	memberMap := map[int64]bool{}
+
 	for e != nil {
 		c := e.Value.(UserCommit)
-		newCommits.PushBack(SignCommit{
+		signCommit := SignCommit{
 			UserCommit:   &c,
 			Verification: ParseCommitWithSignature(c.Commit),
-		})
+		}
+
+		_ = CalculateTrustStatus(signCommit.Verification, repository, &memberMap)
+
+		newCommits.PushBack(signCommit)
 		e = e.Next()
 	}
 	return newCommits
 }
+
+// CalculateTrustStatus will calculate the TrustStatus for a commit verification within a repository
+func CalculateTrustStatus(verification *CommitVerification, repository *Repository, memberMap *map[int64]bool) (err error) {
+	if verification.Verified {
+		verification.TrustStatus = "trusted"
+		if verification.SigningUser.ID != 0 {
+			var isMember bool
+			if memberMap != nil {
+				var has bool
+				isMember, has = (*memberMap)[verification.SigningUser.ID]
+				if !has {
+					isMember, err = repository.IsOwnerMemberCollaborator(verification.SigningUser.ID)
+					(*memberMap)[verification.SigningUser.ID] = isMember
+				}
+			} else {
+				isMember, err = repository.IsOwnerMemberCollaborator(verification.SigningUser.ID)
+			}
+
+			if !isMember {
+				verification.TrustStatus = "untrusted"
+				if verification.CommittingUser.ID != verification.SigningUser.ID {
+					// The committing user and the signing user are not the same and are not the default key
+					// This should be marked as questionable unless the signing user is a collaborator/team member etc.
+					verification.TrustStatus = "unmatched"
+				}
+			}
+		}
+	}
+	return
+}