add websocket

go.mod

@@ -6,8 +6,9 @@ require (
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/gin-gonic/gin v1.9.1
 	github.com/go-ini/ini v1.67.0
+	github.com/gorilla/websocket v1.5.1
 	github.com/jinzhu/gorm v1.9.16
-	golang.org/x/crypto v0.9.0
+	golang.org/x/crypto v0.14.0
 )
 
 require (
@@ -31,9 +32,9 @@ require (
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
 	golang.org/x/arch v0.3.0 // indirect
-	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -40,6 +40,8 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
+github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
 github.com/jinzhu/gorm v1.9.16 h1:+IyIjPEABKRpsu/F8OvDPy9fyQlgsg2luMV2ZIH5i5o=
 github.com/jinzhu/gorm v1.9.16/go.mod h1:G3LB3wezTOWM2ITLzPxEXgSkOXAntiLHS7UdBefADcs=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
@@ -89,24 +91,24 @@ golang.org/x/arch v0.3.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.9.0 h1:LF6fAI+IutBocDJ2OT0Q1g8plpYljMZ4+lty+dsqw3g=
+golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
-golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0=
+golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
 golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
-golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
+golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
+golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
+golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=

handlers/ClientManager.go

@@ -0,0 +1,113 @@
+// Package ws is to define a websocket server and client connect.
+// Author: Arthur Zhang
+// Create Date: 20190101
+package handlers
+
+import (
+	"encoding/json"
+
+	"github.com/gorilla/websocket"
+)
+
+// ClientManager is a websocket manager
+type ClientManager struct {
+	Clients    map[*Client]bool
+	Broadcast  chan []byte
+	Register   chan *Client
+	Unregister chan *Client
+}
+
+// Client is a websocket client
+type Client struct {
+	ID     string
+	Socket *websocket.Conn
+	Send   chan []byte
+}
+
+// Message is an object for websocket message which is mapped to json type
+type Message struct {
+	Sender    string `json:"sender,omitempty"`
+	Recipient string `json:"recipient,omitempty"`
+	Content   string `json:"content,omitempty"`
+}
+
+// Manager define a ws server manager
+var Manager = ClientManager{
+	Broadcast:  make(chan []byte),
+	Register:   make(chan *Client),
+	Unregister: make(chan *Client),
+	Clients:    make(map[*Client]bool),
+}
+
+// Start is to start a ws server
+func (manager *ClientManager) Start() {
+	for {
+		select {
+		case conn := <-manager.Register:
+			manager.Clients[conn] = true
+			jsonMessage, _ := json.Marshal(&Message{Content: "/A new socket has connected."})
+			manager.Send(jsonMessage, conn)
+		case conn := <-manager.Unregister:
+			if _, ok := manager.Clients[conn]; ok {
+				close(conn.Send)
+				delete(manager.Clients, conn)
+				jsonMessage, _ := json.Marshal(&Message{Content: "/A socket has disconnected."})
+				manager.Send(jsonMessage, conn)
+			}
+		case message := <-manager.Broadcast:
+			for conn := range manager.Clients {
+				select {
+				case conn.Send <- message:
+				default:
+					close(conn.Send)
+					delete(manager.Clients, conn)
+				}
+			}
+		}
+	}
+}
+
+// Send is to send ws message to ws client
+func (manager *ClientManager) Send(message []byte, ignore *Client) {
+	for conn := range manager.Clients {
+		if conn != ignore {
+			conn.Send <- message
+		}
+	}
+}
+
+func (c *Client) Read() {
+	defer func() {
+		Manager.Unregister <- c
+		c.Socket.Close()
+	}()
+
+	for {
+		_, message, err := c.Socket.ReadMessage()
+		if err != nil {
+			Manager.Unregister <- c
+			c.Socket.Close()
+			break
+		}
+		jsonMessage, _ := json.Marshal(&Message{Sender: c.ID, Content: string(message)})
+		Manager.Broadcast <- jsonMessage
+	}
+}
+
+func (c *Client) Write() {
+	defer func() {
+		c.Socket.Close()
+	}()
+
+	for {
+		select {
+		case message, ok := <-c.Send:
+			if !ok {
+				c.Socket.WriteMessage(websocket.CloseMessage, []byte{})
+				return
+			}
+
+			c.Socket.WriteMessage(websocket.TextMessage, message)
+		}
+	}
+}

main.go

@@ -2,11 +2,14 @@ package main
 
 import (
 	"flag"
+	"fmt"
 	"go_blog/conf"
 	"go_blog/handlers"
 	"go_blog/models"
+	"net/http"
 
 	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
 )
 
 type UserInfo struct {
@@ -63,6 +66,43 @@ func main() {
 		})
 	})
 
+	// 注册WebSocket路由
+	r.GET("/ws", WebSocketHandler)
+
 	r.POST("/login", handlers.UsersLoginHandler)
 	r.Run(":8080")
 }
+
+func WebSocketHandler(c *gin.Context) {
+	// 获取WebSocket连接
+	//ws, err := websocket.Upgrader.Upgrade(c.Writer, c.Request, nil)
+
+	var upGrader = websocket.Upgrader{
+		CheckOrigin: func(r *http.Request) bool {
+			return true
+		},
+	}
+
+	ws, err := upGrader.Upgrade(c.Writer, c.Request, nil)
+
+	if err != nil {
+		panic(err)
+	}
+
+	// 处理WebSocket消息
+	for {
+		messageType, p, err := ws.ReadMessage()
+		if err != nil {
+			break
+		}
+
+		fmt.Println("messageType:", messageType)
+		fmt.Println("p:", string(p))
+
+		// 输出WebSocket消息内容
+		c.Writer.Write(p)
+	}
+
+	// 关闭WebSocket连接
+	ws.Close()
+}

templates/list.tmpl

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>My Blog</title>
+	<meta charset="UTF-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1.0">
+</head>
+<body>
+
+
+<div>
+    {{ range $key, $val := . -}}
+  {{ $key }}:{{ $val }}
+{{ end -}}
+
+            <h2>
+                <a
+                   href="<?php $this->permalink() ?>"><?php $this->title() ?></a>
+            </h2>
+            <ul class="post-meta">
+                <li itemprop="author" itemscope itemtype="http://schema.org/Person"><?php _e('作者: '); ?><a
+                        itemprop="name" href="<?php $this->author->permalink(); ?>"
+                        rel="author"><?php $this->author(); ?></a></li>
+                <li><?php _e('时间: '); ?>
+                    <time datetime="<?php $this->date('c'); ?>" itemprop="datePublished"><?php $this->date(); ?></time>
+                </li>
+                <li><?php _e('分类: '); ?><?php $this->category(','); ?></li>
+                <li itemprop="interactionCount">
+                    <a itemprop="discussionUrl"
+                       href="<?php $this->permalink() ?>#comments"><?php $this->commentsNum('评论', '1 条评论', '%d 条评论'); ?></a>
+                </li>
+            </ul>
+            <div class="post-content" itemprop="articleBody">
+                <?php $this->content('- 阅读剩余部分 -'); ?>
+            </div>
+        </article>
+    <?php endwhile; ?>
+
+    <?php $this->pageNav('&laquo; 前一页', '后一页 &raquo;'); ?>
+</div><!-- end #main-->
+
+<?php $this->need('sidebar.php'); ?>
+<?php $this->need('footer.php'); ?>