refactor(server): replace gin with net/http

reduce binary size about 2M

coolq/event.go

@@ -2,6 +2,7 @@ package coolq
 
 import (
 	"encoding/hex"
+	"fmt"
 	"io/ioutil"
 	"path"
 	"strconv"
@@ -40,6 +41,7 @@ func (bot *CQBot) privateMessageEvent(c *client.QQClient, m *message.PrivateMess
 		bot.oneWayMsgCache.Store(m.Sender.Uin, "")
 	}
 	id := m.Id
+	fmt.Println(m)
 	if bot.db != nil {
 		id = bot.InsertPrivateMessage(m)
 	}

global/param.go

@@ -11,18 +11,6 @@ import (
 	"github.com/tidwall/gjson"
 )
 
-var trueSet = map[string]struct{}{
-	"true": {},
-	"yes":  {},
-	"1":    {},
-}
-
-var falseSet = map[string]struct{}{
-	"false": {},
-	"no":    {},
-	"0":     {},
-}
-
 // EnsureBool 判断给定的p是否可表示为合法Bool类型,否则返回defaultVal
 //
 // 支持的合法类型有
@@ -55,14 +43,15 @@ func EnsureBool(p interface{}, defaultVal bool) bool {
 		str = s
 	}
 	str = strings.ToLower(str)
-	if _, ok := trueSet[str]; ok {
+	switch str {
+	case "true", "yes", "1":
 		return true
-	}
-	if _, ok := falseSet[str]; ok {
+	case "false", "no", "0":
 		return false
-	}
+	default:
 		return defaultVal
 	}
+}
 
 // VersionNameCompare 检查版本名是否需要更新, 仅适用于 go-cqhttp 的版本命名规则
 //

go.mod

@@ -6,8 +6,7 @@ require (
 	github.com/Baozisoftware/qrcode-terminal-go v0.0.0-20170407111555-c0650d8dff0f
 	github.com/Mrs4s/MiraiGo v0.0.0-20210525010101-8f0cd9494d64
 	github.com/dustin/go-humanize v1.0.0
-	github.com/gin-contrib/pprof v1.3.0
-	github.com/gin-gonic/gin v1.7.1
+	github.com/gin-gonic/gin v1.7.1 // indirect
 	github.com/gorilla/websocket v1.4.2
 	github.com/guonaihong/gout v0.1.9
 	github.com/jonboulle/clockwork v0.2.2 // indirect

go.sum

@@ -14,15 +14,11 @@ github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25Kn
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/gin-contrib/pprof v1.3.0 h1:G9eK6HnbkSqDZBYbzG4wrjCsA4e+cvYAHUZw6W+W9K0=
-github.com/gin-contrib/pprof v1.3.0/go.mod h1:waMjT1H9b179t3CxuG1cV3DHpga6ybizwfBaM5OXaB0=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.6.0/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
-github.com/gin-gonic/gin v1.6.2/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
 github.com/gin-gonic/gin v1.7.1 h1:qC89GU3p8TvKWMAVhEpmpB2CIb1hnqt2UdKZaP93mS8=
 github.com/gin-gonic/gin v1.7.1/go.mod h1:jD2toBW3GZUr5UMcdrwQA10I7RuaFOl/SGeDjXkfUtY=
-github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=

server/http.go

@@ -7,29 +7,32 @@ import (
 	"crypto/sha1"
 	"encoding/hex"
 	"fmt"
+	"io"
 	"net/http"
+	"net/url"
 	"os"
 	"strings"
 	"time"
 
-	"github.com/Mrs4s/go-cqhttp/coolq"
-	"github.com/Mrs4s/go-cqhttp/global/config"
-
 	"github.com/Mrs4s/MiraiGo/utils"
-	"github.com/gin-gonic/gin"
 	"github.com/guonaihong/gout"
 	"github.com/guonaihong/gout/dataflow"
+	jsoniter "github.com/json-iterator/go"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
+
+	"github.com/Mrs4s/go-cqhttp/coolq"
+	"github.com/Mrs4s/go-cqhttp/global/config"
 )
 
 type httpServer struct {
-	engine *gin.Engine
-	bot    *coolq.CQBot
 	HTTP        *http.Server
 	api         *apiCaller
+	accessToken string
 }
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 // HTTPClient 反向HTTP上报客户端
 type HTTPClient struct {
 	bot     *coolq.CQBot
@@ -39,8 +42,102 @@ type HTTPClient struct {
 	timeout int32
 }
 
-type httpContext struct {
-	ctx *gin.Context
+type httpCtx struct {
+	json     gjson.Result
+	query    url.Values
+	postForm url.Values
+
+	headerAuth string
+}
+
+func (h *httpCtx) Get(s string) gjson.Result {
+	j := h.json.Get(s)
+	if j.Exists() {
+		return j
+	}
+	if h.postForm != nil {
+		if form := h.postForm.Get(s); form != "" {
+			return gjson.Result{Type: gjson.String, Str: form}
+		}
+	}
+	if h.query != nil {
+		if query := h.query.Get(s); query != "" {
+			return gjson.Result{Type: gjson.String, Str: query}
+		}
+	}
+	return gjson.Result{}
+}
+
+func (s *httpServer) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
+	var ctx httpCtx
+	contentType := request.Header.Get("Content-Type")
+	ctx.headerAuth = request.Header.Get("Authorization")
+	switch request.Method {
+	case http.MethodPost:
+		if strings.Contains(contentType, "application/json") {
+			body, err := io.ReadAll(request.Body)
+			if err != nil {
+				log.Warnf("获取请求 %v 的Body时出现错误: %v", request.RequestURI, err)
+				writer.WriteHeader(http.StatusBadRequest)
+				return
+			}
+			if !gjson.ValidBytes(body) {
+				log.Warnf("已拒绝客户端 %v 的请求: 非法Json", request.RemoteAddr)
+				writer.WriteHeader(http.StatusBadRequest)
+				return
+			}
+			ctx.json = gjson.Parse(utils.B2S(body))
+		}
+		if strings.Contains(contentType, "application/x-www-form-urlencoded") {
+			ctx.postForm = request.PostForm
+		}
+		fallthrough
+	case http.MethodGet:
+		ctx.query = request.URL.Query()
+
+	default:
+		log.Warnf("已拒绝客户端 %v 的请求: 方法错误", request.RemoteAddr)
+		writer.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	if s.accessToken != "" {
+		if status := checkAuth(ctx, s.accessToken); status != http.StatusOK {
+			writer.WriteHeader(status)
+			return
+		}
+	}
+
+	action := strings.TrimPrefix(request.URL.Path, "/")
+	action = strings.TrimSuffix(action, "_async")
+	log.Debugf("HTTPServer接收到API调用: %v", action)
+	ret := s.api.callAPI(action, &ctx)
+
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_ = json.NewEncoder(writer).Encode(ret)
+}
+
+func checkAuth(ctx httpCtx, token string) int {
+	auth := ctx.headerAuth
+	if auth == "" {
+		auth = ctx.query.Get("access_token")
+		switch {
+		case auth == "":
+			return http.StatusUnauthorized
+		case auth != token:
+			return http.StatusForbidden
+		}
+	} else {
+		auth := strings.SplitN(auth, " ", 2)
+		switch {
+		case len(auth) != 2 || auth[1] == "":
+			return http.StatusUnauthorized
+		case auth[1] != token:
+			return http.StatusForbidden
+		}
+	}
+	return http.StatusOK
 }
 
 // RunHTTPServerAndClients 启动HTTP服务器与HTTP上报客户端
@@ -50,77 +147,23 @@ func RunHTTPServerAndClients(bot *coolq.CQBot, conf *config.HTTPServer) {
 	}
 	var (
 		s    = new(httpServer)
-		authToken = conf.AccessToken
 		addr string
 	)
+	s.accessToken = conf.AccessToken
 	if conf.Host == "" || conf.Port == 0 {
 		goto client
 	}
 	addr = fmt.Sprintf("%s:%d", conf.Host, conf.Port)
-	gin.SetMode(gin.ReleaseMode)
-	s.engine = gin.New()
-	s.bot = bot
-	s.api = newAPICaller(s.bot)
+	s.api = newAPICaller(bot)
 	if conf.RateLimit.Enabled {
 		s.api.use(rateLimit(conf.RateLimit.Frequency, conf.RateLimit.Bucket))
 	}
-	s.engine.Use(func(c *gin.Context) {
-		if c.Request.Method != "GET" && c.Request.Method != "POST" {
-			log.Warnf("已拒绝客户端 %v 的请求: 方法错误", c.Request.RemoteAddr)
-			c.Status(404)
-			return
-		}
-		if c.Request.Method == "POST" && strings.Contains(c.Request.Header.Get("Content-Type"), "application/json") {
-			d, err := c.GetRawData()
-			if err != nil {
-				log.Warnf("获取请求 %v 的Body时出现错误: %v", c.Request.RequestURI, err)
-				c.Status(400)
-				return
-			}
-			if !gjson.ValidBytes(d) {
-				log.Warnf("已拒绝客户端 %v 的请求: 非法Json", c.Request.RemoteAddr)
-				c.Status(400)
-				return
-			}
-			c.Set("json_body", gjson.ParseBytes(d))
-		}
-		c.Next()
-	})
-
-	if authToken != "" {
-		s.engine.Use(func(c *gin.Context) {
-			auth := c.Request.Header.Get("Authorization")
-			if auth == "" {
-				headAuth := c.Query("access_token")
-				switch {
-				case headAuth == "":
-					c.AbortWithStatus(401)
-					return
-				case headAuth != authToken:
-					c.AbortWithStatus(403)
-					return
-				}
-			} else {
-				auth := strings.SplitN(auth, " ", 2)
-				switch {
-				case len(auth) != 2 || auth[1] == "":
-					c.AbortWithStatus(401)
-					return
-				case auth[1] != authToken:
-					c.AbortWithStatus(403)
-					return
-				}
-			}
-		})
-	}
-
-	s.engine.Any("/:action", s.HandleActions)
 
 	go func() {
 		log.Infof("CQ HTTP 服务器已启动: %v", addr)
 		s.HTTP = &http.Server{
 			Addr:    addr,
-			Handler: s.engine,
+			Handler: s,
 		}
 		if err := s.HTTP.ListenAndServe(); err != nil && err != http.ErrServerClosed {
 			log.Error(err)
@@ -202,34 +245,6 @@ func (c *HTTPClient) onBotPushEvent(m *bytes.Buffer) {
 	}
 }
 
-func (s *httpServer) HandleActions(c *gin.Context) {
-	action := strings.TrimSuffix(c.Param("action"), "_async")
-	log.Debugf("HTTPServer接收到API调用: %v", action)
-	c.JSON(200, s.api.callAPI(action, httpContext{ctx: c}))
-}
-
-func (h httpContext) Get(k string) gjson.Result {
-	c := h.ctx
-	if q := c.Query(k); q != "" {
-		return gjson.Result{Type: gjson.String, Str: q}
-	}
-	if c.Request.Method == "POST" {
-		if h := c.Request.Header.Get("Content-Type"); h != "" {
-			if strings.Contains(h, "application/x-www-form-urlencoded") {
-				if p, ok := c.GetPostForm(k); ok {
-					return gjson.Result{Type: gjson.String, Str: p}
-				}
-			}
-			if strings.Contains(h, "application/json") {
-				if obj, ok := c.Get("json_body"); ok {
-					return obj.(gjson.Result).Get(k)
-				}
-			}
-		}
-	}
-	return gjson.Result{Type: gjson.Null, Str: ""}
-}
-
 func (s *httpServer) ShutDown() {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()

server/pprof.go

@@ -3,11 +3,10 @@ package server
 import (
 	"fmt"
 	"net/http"
+	"net/http/pprof"
 	"os"
 	"time"
 
-	"github.com/gin-contrib/pprof"
-	"github.com/gin-gonic/gin"
 	log "github.com/sirupsen/logrus"
 
 	"github.com/Mrs4s/go-cqhttp/global/config"
@@ -18,14 +17,18 @@ func RunPprofServer(conf *config.PprofServer) {
 	if conf.Disabled {
 		return
 	}
-	gin.SetMode(gin.ReleaseMode)
-	engine := gin.New()
 	addr := fmt.Sprintf("%s:%d", conf.Host, conf.Port)
-	pprof.Register(engine)
+	mux := http.NewServeMux()
+	mux.HandleFunc("/debug/pprof/", pprof.Index)
+	mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
+	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
+	mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+	mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
+	server := http.Server{Addr: addr, Handler: mux}
 	go func() {
 		log.Infof("pprof debug 服务器已启动: %v/debug/pprof", addr)
 		log.Warnf("警告: pprof 服务不支持鉴权, 请不要运行在公网.")
-		if err := engine.Run(addr); err != nil && err != http.ErrServerClosed {
+		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
 			log.Error(err)
 			log.Infof("pprof 服务启动失败, 请检查端口是否被占用.")
 			log.Warnf("将在五秒后退出.")