mirror of
https://gitee.com/johng/gf.git
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217 lines
7.4 KiB
Go
217 lines
7.4 KiB
Go
// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package ghttp
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import (
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"fmt"
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"reflect"
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"strings"
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"github.com/gogf/gf/os/gfile"
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"github.com/gogf/gf/text/gregex"
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"github.com/gogf/gf/text/gstr"
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)
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// 绑定控制器，控制器需要实现 gmvc.Controller 接口,
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// 这种方式绑定的控制器每一次请求都会初始化一个新的控制器对象进行处理，对应不同的请求会话,
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// 第三个参数methods用以指定需要注册的方法，支持多个方法名称，多个方法以英文“,”号分隔，区分大小写.
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func (s *Server) BindController(pattern string, controller Controller, method ...string) {
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bindMethod := ""
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if len(method) > 0 {
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bindMethod = method[0]
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}
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s.doBindController(pattern, controller, bindMethod, nil, "")
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}
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// 绑定路由到指定的方法执行, 第三个参数method仅支持一个方法注册，不支持多个，并且区分大小写。
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func (s *Server) BindControllerMethod(pattern string, controller Controller, method string) {
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s.doBindControllerMethod(pattern, controller, method, nil, "")
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}
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// 绑定控制器(RESTFul)，控制器需要实现gmvc.Controller接口
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// 方法会识别HTTP方法，并做REST绑定处理，例如：Post方法会绑定到HTTP POST的方法请求处理，Delete方法会绑定到HTTP DELETE的方法请求处理
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// 因此只会绑定HTTP Method对应的方法，其他方法不会自动注册绑定
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// 这种方式绑定的控制器每一次请求都会初始化一个新的控制器对象进行处理，对应不同的请求会话
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func (s *Server) BindControllerRest(pattern string, controller Controller) {
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s.doBindControllerRest(pattern, controller, nil, "")
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}
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func (s *Server) doBindController(
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pattern string, controller Controller, method string,
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middleware []HandlerFunc, source string,
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) {
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// Convert input method to map for convenience and high performance searching.
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var methodMap map[string]bool
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if len(method) > 0 {
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methodMap = make(map[string]bool)
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for _, v := range strings.Split(method, ",") {
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methodMap[strings.TrimSpace(v)] = true
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}
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}
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// 当pattern中的method为all时，去掉该method，以便于后续方法判断
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domain, method, path, err := s.parsePattern(pattern)
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if err != nil {
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s.Logger().Fatal(err)
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return
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}
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if strings.EqualFold(method, gDEFAULT_METHOD) {
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pattern = s.serveHandlerKey("", path, domain)
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}
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// 遍历控制器，获取方法列表，并构造成uri
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m := make(map[string]*handlerItem)
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v := reflect.ValueOf(controller)
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t := v.Type()
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pkgPath := t.Elem().PkgPath()
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pkgName := gfile.Basename(pkgPath)
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structName := t.Elem().Name()
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for i := 0; i < v.NumMethod(); i++ {
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methodName := t.Method(i).Name
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if methodMap != nil && !methodMap[methodName] {
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continue
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}
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if methodName == "Init" || methodName == "Shut" || methodName == "Exit" {
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continue
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}
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ctlName := gstr.Replace(t.String(), fmt.Sprintf(`%s.`, pkgName), "")
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if ctlName[0] == '*' {
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ctlName = fmt.Sprintf(`(%s)`, ctlName)
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}
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if _, ok := v.Method(i).Interface().(func()); !ok {
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if len(methodMap) > 0 {
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// 指定的方法名称注册，那么需要使用错误提示
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s.Logger().Errorf(`invalid route method: %s.%s.%s defined as "%s", but "func()" is required for controller registry`,
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pkgPath, ctlName, methodName, v.Method(i).Type().String())
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} else {
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// 否则只是Debug提示
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s.Logger().Debugf(`ignore route method: %s.%s.%s defined as "%s", no match "func()"`,
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pkgPath, ctlName, methodName, v.Method(i).Type().String())
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}
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continue
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}
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key := s.mergeBuildInNameToPattern(pattern, structName, methodName, true)
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m[key] = &handlerItem{
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itemName: fmt.Sprintf(`%s.%s.%s`, pkgPath, ctlName, methodName),
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itemType: gHANDLER_TYPE_CONTROLLER,
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ctrlInfo: &handlerController{
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name: methodName,
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reflect: v.Elem().Type(),
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},
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middleware: middleware,
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source: source,
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}
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// 如果方法中带有Index方法，那么额外自动增加一个路由规则匹配主URI，
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// 例如: pattern为/user, 那么会同时注册/user及/user/index，
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// 这里处理新增/user路由绑定。
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// 注意，当pattern带有内置变量时，不会自动加该路由。
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if strings.EqualFold(methodName, "Index") && !gregex.IsMatchString(`\{\.\w+\}`, pattern) {
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p := gstr.PosRI(key, "/index")
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k := key[0:p] + key[p+6:]
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if len(k) == 0 || k[0] == '@' {
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k = "/" + k
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}
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m[k] = &handlerItem{
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itemName: fmt.Sprintf(`%s.%s.%s`, pkgPath, ctlName, methodName),
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itemType: gHANDLER_TYPE_CONTROLLER,
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ctrlInfo: &handlerController{
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name: methodName,
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reflect: v.Elem().Type(),
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},
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middleware: middleware,
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source: source,
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}
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}
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}
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s.bindHandlerByMap(m)
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}
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func (s *Server) doBindControllerMethod(
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pattern string,
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controller Controller,
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method string,
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middleware []HandlerFunc,
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source string,
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) {
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m := make(map[string]*handlerItem)
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v := reflect.ValueOf(controller)
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t := v.Type()
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structName := t.Elem().Name()
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methodName := strings.TrimSpace(method)
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methodValue := v.MethodByName(methodName)
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if !methodValue.IsValid() {
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s.Logger().Fatal("invalid method name: " + methodName)
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return
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}
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pkgPath := t.Elem().PkgPath()
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pkgName := gfile.Basename(pkgPath)
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ctlName := gstr.Replace(t.String(), fmt.Sprintf(`%s.`, pkgName), "")
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if ctlName[0] == '*' {
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ctlName = fmt.Sprintf(`(%s)`, ctlName)
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}
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if _, ok := methodValue.Interface().(func()); !ok {
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s.Logger().Errorf(
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`invalid route method: %s.%s.%s defined as "%s", but "func()" is required for controller registry`,
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pkgPath, ctlName, methodName, methodValue.Type().String(),
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)
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return
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}
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key := s.mergeBuildInNameToPattern(pattern, structName, methodName, false)
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m[key] = &handlerItem{
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itemName: fmt.Sprintf(`%s.%s.%s`, pkgPath, ctlName, methodName),
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itemType: gHANDLER_TYPE_CONTROLLER,
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ctrlInfo: &handlerController{
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name: methodName,
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reflect: v.Elem().Type(),
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},
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middleware: middleware,
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source: source,
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}
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s.bindHandlerByMap(m)
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}
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func (s *Server) doBindControllerRest(
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pattern string, controller Controller,
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middleware []HandlerFunc, source string,
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) {
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// 遍历控制器，获取方法列表，并构造成uri
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m := make(map[string]*handlerItem)
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v := reflect.ValueOf(controller)
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t := v.Type()
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pkgPath := t.Elem().PkgPath()
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structName := t.Elem().Name()
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// 如果存在与HttpMethod对应名字的方法，那么绑定这些方法
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for i := 0; i < v.NumMethod(); i++ {
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methodName := t.Method(i).Name
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if _, ok := methodsMap[strings.ToUpper(methodName)]; !ok {
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continue
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}
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pkgName := gfile.Basename(pkgPath)
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ctlName := gstr.Replace(t.String(), fmt.Sprintf(`%s.`, pkgName), "")
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if ctlName[0] == '*' {
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ctlName = fmt.Sprintf(`(%s)`, ctlName)
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}
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if _, ok := v.Method(i).Interface().(func()); !ok {
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s.Logger().Errorf(
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`invalid route method: %s.%s.%s defined as "%s", but "func()" is required for controller registry`,
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pkgPath, ctlName, methodName, v.Method(i).Type().String(),
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)
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return
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}
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key := s.mergeBuildInNameToPattern(methodName+":"+pattern, structName, methodName, false)
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m[key] = &handlerItem{
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itemName: fmt.Sprintf(`%s.%s.%s`, pkgPath, ctlName, methodName),
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itemType: gHANDLER_TYPE_CONTROLLER,
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ctrlInfo: &handlerController{
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name: methodName,
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reflect: v.Elem().Type(),
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},
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middleware: middleware,
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source: source,
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}
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}
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s.bindHandlerByMap(m)
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}
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