commit 2fe4b0193ea2b352ab9678247d8b331a84c3610a
Author: dugulingping <i@srv.ink>
Date:   Sun Jan 21 22:30:45 2024 +0800

    first commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0a551da
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/.idea
+/.vscode
+mappings.db
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..7252a9b
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,35 @@
+module Lucky-tools
+
+go 1.21
+
+require (
+	github.com/gin-gonic/gin v1.9.1
+	github.com/mattn/go-sqlite3 v1.14.19
+)
+
+require (
+	github.com/bytedance/sonic v1.9.1 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.14.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
+	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/crypto v0.9.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..e63dbbd
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,88 @@
+github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
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diff --git a/main.go b/main.go
new file mode 100644
index 0000000..f643bfe
--- /dev/null
+++ b/main.go
@@ -0,0 +1,173 @@
+package main
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	_ "github.com/mattn/go-sqlite3"
+	"log"
+	"net/http"
+	"time"
+)
+
+// MappingInfo 用于存储映射信息
+type MappingInfo struct {
+	RuleName   string    `json:"rule_name"`
+	IpAddr     string    `json:"ip_addr"`
+	Ip         string    `json:"ip"`
+	Port       string    `json:"port"`
+	LastUpdate time.Time `json:"last_update"`
+}
+
+// 全局变量，存储所有映射信息
+var mappings = make(map[string]*MappingInfo)
+
+var db *sql.DB
+var dbFileName = "./mappings.db"                                            // 数据库文件名
+var tableName = "mappings"                                                  // 数据库表名
+var query = `SELECT name FROM sqlite_master WHERE type='table' AND name=?;` // 查询表是否存在的SQL语句
+var createTableSQL = `CREATE TABLE IF NOT EXISTS  ` + tableName + ` (
+            "RuleName" TEXT PRIMARY KEY,
+            "IPAddress" TEXT,
+            "Ip" TEXT,
+            "Port" TEXT,
+            "LastUpdate" TEXT
+        );` // 创建表的SQL语句
+
+func main() {
+	InitDB() // 初始化数据库
+	defer func(db *sql.DB) {
+		err := db.Close()
+		if err != nil {
+			log.Fatal(err)
+		}
+	}(db)
+
+	router := gin.Default()
+
+	// 处理Webhook的路由
+	router.POST("/webhook", func(c *gin.Context) {
+		var info MappingInfo
+		if err := c.BindJSON(&info); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		info.LastUpdate = time.Now()
+		// 输出一下info
+		fmt.Println(info)
+		mappings[info.RuleName] = &info
+		updateMapping(info) // 更新数据库中的映射信息
+		c.JSON(http.StatusOK, gin.H{"status": "updated"})
+	})
+
+	// 提供Web服务的路由，展示映射信息
+	router.GET("/mappings", func(c *gin.Context) {
+		c.JSON(http.StatusOK, mappings)
+	})
+
+	// 根据RuleName查询映射信息
+	router.GET("/mappings/:RuleName", func(c *gin.Context) {
+		serviceName := c.Param("RuleName")
+		if info, exists := mappings[serviceName]; exists {
+			c.JSON(http.StatusOK, info)
+		} else {
+			c.JSON(http.StatusNotFound, gin.H{"code": http.StatusNotFound, "error": "service not found"})
+		}
+	})
+
+	// 根据RuleName跳转到映射的服务
+	router.GET("/:RuleName", func(c *gin.Context) {
+		serviceName := c.Param("RuleName")
+		if info, exists := mappings[serviceName]; exists {
+			url := "http://" + info.Ip + ":" + info.Port
+			c.Redirect(http.StatusMovedPermanently, url)
+		} else {
+			c.JSON(http.StatusNotFound, gin.H{"code": http.StatusNotFound, "error": "service not found"})
+		}
+	})
+
+	// 启动定时任务，检查映射信息更新
+	go checkMappings()
+
+	err := router.Run(":8080")
+	if err != nil {
+		return
+	} // 在8080端口启动服务
+}
+
+// 定时检查映射信息是否需要更新
+func checkMappings() {
+	for {
+		time.Sleep(24 * time.Hour) // 每天检查一次
+		for _, info := range mappings {
+			if time.Since(info.LastUpdate) > 24*time.Hour {
+				// 如果超过一天没有更新，则主动查询API（这里需要实现API查询逻辑）
+			}
+		}
+	}
+}
+
+func InitDB() {
+	log.Println("Init DB...")
+	var err error
+	db, err = sql.Open("sqlite3", dbFileName)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	err = db.QueryRow(query, tableName).Scan(&tableName)
+	if errors.Is(err, sql.ErrNoRows) {
+		log.Println("Table not exists, create it...")
+		createTable()
+	} else if err != nil {
+		log.Fatal(err)
+	} else {
+		// 读取数据库中的映射信息
+		mappings = readMappings()
+		fmt.Println(mappings)
+	}
+	log.Println("Init DB done.")
+}
+
+// 创建映射表
+func createTable() {
+	_, err := db.Exec(createTableSQL)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+// 从数据库读取映射信息
+func readMappings() map[string]*MappingInfo {
+	mappings := make(map[string]*MappingInfo)
+	rows, err := db.Query("SELECT RuleName, IPAddress, Ip, Port, LastUpdate FROM mappings")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var info MappingInfo
+		var lastUpdate string
+		err = rows.Scan(&info.RuleName, &info.IpAddr, &info.Ip, &info.Port, &lastUpdate)
+		if err != nil {
+			log.Fatal(err)
+		}
+		info.LastUpdate, err = time.Parse(time.RFC3339, lastUpdate)
+		if err != nil {
+			log.Fatal(err)
+		}
+		mappings[info.RuleName] = &info
+	}
+	return mappings
+}
+
+// 更新数据库中的映射信息
+func updateMapping(info MappingInfo) {
+	_, err := db.Exec("INSERT OR REPLACE INTO mappings (RuleName, IPAddress, Ip, Port, LastUpdate) VALUES (?, ?, ?, ?, ?)",
+		info.RuleName, info.IpAddr, info.Ip, info.Port, info.LastUpdate.Format(time.RFC3339))
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/templates/index.html b/templates/index.html
new file mode 100644
index 0000000..50e4d47
--- /dev/null
+++ b/templates/index.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html lang="zh">
+<head>
+    <title>STUN映射信息</title>
+</head>
+<body>
+<h1>STUN映射信息</h1>
+{{if .}}
+<table border="1">
+    <tr>
+        <th>名称</th>
+        <th>IP地址</th>
+        <th>端口</th>
+        <th>最后更新时间</th>
+    </tr>
+    {{range .}}
+    <tr>
+        <td>{{.Name}}</td>
+        <td>{{.IP}}</td>
+        <td>{{.Port}}</td>
+        <td>{{.LastUpdate}}</td>
+    </tr>
+    {{end}}
+</table>
+{{else}}
+<p>没有映射信息。</p>
+{{end}}
+</body>
+</html>