fix(cmd/protoc-gen-go-http): Fix when replacement rule is not ending (#1721)

cmd/protoc-gen-go-http/http.go

@@ -214,13 +214,15 @@ func buildPathVars(path string) (res map[string]*string) {
 }
 
 func replacePath(name string, value string, path string) string {
-	pattern := regexp.MustCompile(fmt.Sprintf(`(?i){([\s]*%s[\s]*)=`, name))
+	pattern := regexp.MustCompile(fmt.Sprintf(`(?i){([\s]*%s[\s]*)=?([^{}]*)}`, name))
 	idx := pattern.FindStringIndex(path)
 	if len(idx) > 0 {
-		path = fmt.Sprintf("%s{%s:%s}",
+		path = fmt.Sprintf("%s{%s:%s}%s",
 			path[:idx[0]], // The start of the match
 			name,
-			strings.ReplaceAll(value, "*", ".*"))
+			strings.ReplaceAll(value, "*", ".*"),
+			path[idx[1]:],
+		)
 	}
 	return path
 }

cmd/protoc-gen-go-http/http_test.go

@@ -29,11 +29,11 @@ func TestTwoParametersReplacement(t *testing.T) {
 }
 
 func TestNoReplacePath(t *testing.T) {
-	path := "/test/{message.id}"
-	assert.Equal(t, path, replacePath("message.id", "", path))
-
-	path = "/test/{message.id=test}"
+	path := "/test/{message.id=test}"
 	assert.Equal(t, "/test/{message.id:test}", replacePath("message.id", "test", path))
+
+	path = "/test/{message.id=test/*}"
+	assert.Equal(t, "/test/{message.id:test/.*}", replacePath("message.id", "test/*", path))
 }
 
 func TestReplacePath(t *testing.T) {
@@ -52,3 +52,14 @@ func TestIteration(t *testing.T) {
 	}
 	assert.Equal(t, "/test/{message.id}/{message.name:messages/.*}", path)
 }
+
+func TestIterationMiddle(t *testing.T) {
+	path := "/test/{message.name=messages/*}/books"
+	vars := buildPathVars(path)
+	for v, s := range vars {
+		if s != nil {
+			path = replacePath(v, *s, path)
+		}
+	}
+	assert.Equal(t, "/test/{message.name:messages/.*}/books", path)
+}