backport of commit ea0fe22dfa

internal/daemon/controller/internal/metric/api.go

@@ -101,12 +101,12 @@ func apiPathsAndMethods() map[string][]string {
 func buildRegexFromPath(p string) *regexp.Regexp {
 	// We only care about how grpc-gateway will route to specific handlers.
 	// As long as there is at least 1 character that is part of a path segment
-	// (not a '/', '?', or ':' we have identified an id for the sake of routing.
-	const idRegexp = "[^\\/\\?\\:]+"
+	// (not a '?', or ':' we have identified an id for the sake of routing.
+	const idRegexp = "[^\\?\\:]+"
 
-	// Replace any tag in the form of {id} or {auth_method_id} with the above
+	// Replace any tag in the form of {id}, {id**}, or {auth_method_id} with the above
 	// regex so we can match paths to that when measuring requests.
-	pWithId := string(regexp.MustCompile("\\{[^\\}]*id\\}").ReplaceAll([]byte(p), []byte(idRegexp)))
+	pWithId := string(regexp.MustCompile("\\{[^\\}]*id(\\=\\*\\*)?\\}").ReplaceAll([]byte(p), []byte(idRegexp)))
 
 	// Escape everything except for our id regexp.
 	var seg []string

internal/daemon/controller/internal/metric/api_test.go

@@ -41,12 +41,12 @@ func TestBuildRegexFromPath(t *testing.T) {
 				"/v1/pathsomething/am_1234567890:authenticate",
 				"/v1/pathsomething/{id}:authenticate",
 				"/v1/pathsomething/{auth_method}:authenticate",
+				"/v1/pathsomething/am_1234567890/:authenticate",
 			},
 			dont: []string{
 				"/v1/pathsomething:authenticate",
 				"/v1/pathsomething:authenticate:authenticate",
 				"/v1/pathsomething/:authenticate:authenticate",
-				"/v1/pathsomething/am_1234567890/:authenticate",
 				"/v1/pathsomething/?whatabout=:authenticate",
 			},
 		},
@@ -130,6 +130,31 @@ func TestPathLabel(t *testing.T) {
 			in:   "v1/accounts/a_1234567890:set-password",
 			want: "/v1/accounts/{id}:set-password",
 		},
+		{
+			// using target id
+			in:   "/v1/targets/tssh_12345789:authorize-session",
+			want: "/v1/targets/{id=**}:authorize-session",
+		},
+		{
+			// using target name
+			in:   "/v1/targets/foo-target:authorize-session",
+			want: "/v1/targets/{id=**}:authorize-session",
+		},
+		{
+			// using target name with a space
+			in:   "/v1/targets/foo target:authorize-session",
+			want: "/v1/targets/{id=**}:authorize-session",
+		},
+		{
+			// using target name with a slash
+			in:   "/v1/targets/foo/target:authorize-session",
+			want: "/v1/targets/{id=**}:authorize-session",
+		},
+		{
+			// using alias
+			in:   "/v1/targets/foo.test:authorize-session",
+			want: "/v1/targets/{id=**}:authorize-session",
+		},
 		{
 			// mistype the custom action
 			in:   "/v1/accounts/a_1234567890:set-passwords",