Record git repo URL in the principal when forge auth is used.

Resolves: https://codeberg.org/git-pages/git-pages/issues/167

src/audit.go

@@ -111,6 +111,9 @@ func (record *AuditRecord) DescribePrincipal() string {
 				record.Principal.GetForgeUser().GetHandle(),
 				record.Principal.GetForgeUser().GetId()))
 		}
+		if record.Principal.GetRepoUrl() != "" {
+			items = append(items, record.Principal.GetRepoUrl())
+		}
 		if record.Principal.GetCliAdmin() {
 			items = append(items, "<cli-admin>")
 		}

src/pages.go

@@ -65,6 +65,17 @@ func observeSiteUpdate(via string, result *UpdateResult) {
 	}
 }
 
+func copyForgeAuthToPrincipal(principal *Principal, auth *Authorization) {
+	if auth.forgeUser != nil {
+		principal.ForgeUser = auth.forgeUser
+	}
+
+	repoURL := auth.ForgeRepoURL()
+	if repoURL != "" {
+		principal.RepoUrl = &repoURL
+	}
+}
+
 func normalizeHost(host string) string {
 	return strings.ToLower(host)
 }
@@ -526,10 +537,11 @@ func putPage(w http.ResponseWriter, r *http.Request) error {
 		auth, err := AuthorizeUpdateFromArchive(r)
 		if err != nil {
 			return err
-		} else if auth.forgeUser != nil {
-			GetPrincipal(r.Context()).ForgeUser = auth.forgeUser
 		}
 
+		principal := GetPrincipal(r.Context())
+		copyForgeAuthToPrincipal(principal, auth)
+
 		repoURL := auth.ForgeRepoURL()
 
 		if checkDryRun(w, r) {
@@ -559,12 +571,14 @@ func patchPage(w http.ResponseWriter, r *http.Request) error {
 		return err
 	}
 
-	if auth, err := AuthorizeUpdateFromArchive(r); err != nil {
+	auth, err := AuthorizeUpdateFromArchive(r)
+	if err != nil {
 		return err
-	} else if auth.forgeUser != nil {
-		GetPrincipal(r.Context()).ForgeUser = auth.forgeUser
 	}
 
+	principal := GetPrincipal(r.Context())
+	copyForgeAuthToPrincipal(principal, auth)
+
 	if checkDryRun(w, r) {
 		return nil
 	}
@@ -691,12 +705,14 @@ func deletePage(w http.ResponseWriter, r *http.Request) error {
 		return err
 	}
 
-	if auth, err := AuthorizeDeletion(r); err != nil {
+	auth, err := AuthorizeDeletion(r)
+	if err != nil {
 		return err
-	} else if auth.forgeUser != nil {
-		GetPrincipal(r.Context()).ForgeUser = auth.forgeUser
 	}
 
+	principal := GetPrincipal(r.Context())
+	copyForgeAuthToPrincipal(principal, auth)
+
 	if checkDryRun(w, r) {
 		return nil
 	}

src/schema.pb.go

@@ -863,6 +863,7 @@ type Principal struct {
 	IpAddress     *string                `protobuf:"bytes,1,opt,name=ip_address,json=ipAddress" json:"ip_address,omitempty"`
 	CliAdmin      *bool                  `protobuf:"varint,2,opt,name=cli_admin,json=cliAdmin" json:"cli_admin,omitempty"`
 	ForgeUser     *ForgeUser             `protobuf:"bytes,3,opt,name=forge_user,json=forgeUser" json:"forge_user,omitempty"`
+	RepoUrl       *string                `protobuf:"bytes,4,opt,name=repo_url,json=repoUrl" json:"repo_url,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -918,6 +919,13 @@ func (x *Principal) GetForgeUser() *ForgeUser {
 	return nil
 }
 
+func (x *Principal) GetRepoUrl() string {
+	if x != nil && x.RepoUrl != nil {
+		return *x.RepoUrl
+	}
+	return ""
+}
+
 type ForgeUser struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Origin        *string                `protobuf:"bytes,1,opt,name=origin" json:"origin,omitempty"`
@@ -1041,14 +1049,15 @@ const file_schema_proto_rawDesc = "" +
 	"\x06domain\x18\n" +
 	" \x01(\tR\x06domain\x12\x18\n" +
 	"\aproject\x18\v \x01(\tR\aproject\x12%\n" +
-	"\bmanifest\x18\f \x01(\v2\t.ManifestR\bmanifest\"r\n" +
+	"\bmanifest\x18\f \x01(\v2\t.ManifestR\bmanifest\"\x8d\x01\n" +
 	"\tPrincipal\x12\x1d\n" +
 	"\n" +
 	"ip_address\x18\x01 \x01(\tR\tipAddress\x12\x1b\n" +
 	"\tcli_admin\x18\x02 \x01(\bR\bcliAdmin\x12)\n" +
 	"\n" +
 	"forge_user\x18\x03 \x01(\v2\n" +
-	".ForgeUserR\tforgeUser\"K\n" +
+	".ForgeUserR\tforgeUser\x12\x19\n" +
+	"\brepo_url\x18\x04 \x01(\tR\arepoUrl\"K\n" +
 	"\tForgeUser\x12\x16\n" +
 	"\x06origin\x18\x01 \x01(\tR\x06origin\x12\x0e\n" +
 	"\x02id\x18\x02 \x01(\x03R\x02id\x12\x16\n" +

src/schema.proto

@@ -144,6 +144,7 @@ message Principal {
 	string ip_address = 1;
 	bool cli_admin = 2;
 	ForgeUser forge_user = 3;
+	string repo_url = 4;
 }
 
 message ForgeUser {