feat(common): 添加获取本机公网IP及区域模糊匹配功能

新增以下功能：
- 添加 `GetLocalIpv4Addr` 函数用于获取本机公网IPv4地址，通过外部API实现，并增加基本校验逻辑
- 添加 `ContainsPart` 和 `SplitBySpace` 函数，支持按空格分割字符串并进行区域关键词模糊匹配
- 引入标准库依赖：`fmt`、`io`、`net`、`net/http`、`strings`

同时移除已废弃的文件：
- 删除 `local_addr.go`，相关逻辑迁移至 `common.go`
- 删除 `region_name_match.go`，相关函数整合进 `common.go`
- 删除 `warning_ding.go`，原钉钉告警模块暂不启用

更新二进制文件 `denyip`，删除压缩版本 `denyip.upx`

common.go

@@ -1,8 +1,13 @@
 package main
 
 import (
+	"fmt"
+	"io"
 	"log"
+	"net"
+	"net/http"
 	"os/exec"
+	"strings"
 )
 
 // CheckCommandExists 检测系统命令是否存在，不存在则退出程序
@@ -12,3 +17,55 @@ func CheckCommandExists(cmd string) {
 		log.Fatalf("命令未找到: %s (请确保已安装该命令)", cmd)
 	}
 }
+
+// SplitBySpace 按空格分割字符串
+func SplitBySpace(s string) []string {
+	return strings.Split(s, " ")
+}
+
+// ContainsPart 判断 target 是否包含 regionParts 中的任意片段（模糊匹配）
+func ContainsPart(target string, REGION string) bool {
+	regionParts := SplitBySpace(REGION)
+
+	for _, rp := range regionParts {
+		//fmt.Println("regionParts:", rp)
+		if strings.Contains(target, rp) {
+			return true
+		}
+	}
+	return false
+}
+
+// 获取本机公网 IPv4 地址
+func GetLocalIpv4Addr() string {
+	resp, err := http.Get("https://inet-ip.aixiao.me/")
+	if err != nil {
+		fmt.Printf("请求失败: %s\n", err)
+		return "NULL"
+	}
+	defer resp.Body.Close()
+
+	ip, err := io.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Printf("读取响应失败: %s\n", err)
+		return "NULL"
+	}
+
+	ipStr := strings.TrimSpace(string(ip))
+	// ✅ 验证是否是合法 IPv4
+	if net.ParseIP(ipStr) == nil || strings.Contains(ipStr, "<") {
+		fmt.Printf("无效的IP响应: %q\n", ipStr)
+		return "NULL"
+	}
+
+	log.Printf(" 公网IP: %s\n", ipStr)
+	return ipStr
+}
+
+/*
+func main() {
+	REGION := "中国 内网"
+
+	fmt.Println("结果1:", ContainsPart("美国", REGION)) // true
+}
+*/

local_addr.go

@@ -1,35 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io"
-	"log"
-	"net"
-	"net/http"
-	"strings"
-)
-
-func GetLocalIpv4Addr() string {
-	resp, err := http.Get("https://inet-ip.aixiao.me/")
-	if err != nil {
-		fmt.Printf("请求失败: %s\n", err)
-		return "NULL"
-	}
-	defer resp.Body.Close()
-
-	ip, err := io.ReadAll(resp.Body)
-	if err != nil {
-		fmt.Printf("读取响应失败: %s\n", err)
-		return "NULL"
-	}
-
-	ipStr := strings.TrimSpace(string(ip))
-	// ✅ 验证是否是合法 IPv4
-	if net.ParseIP(ipStr) == nil || strings.Contains(ipStr, "<") {
-		fmt.Printf("无效的IP响应: %q\n", ipStr)
-		return "NULL"
-	}
-
-	log.Printf(" 公网IP: %s\n", ipStr)
-	return ipStr
-}

region_name_match.go

@@ -1,31 +0,0 @@
-package main
-
-import (
-	"strings"
-)
-
-// SplitBySpace 按空格分割字符串
-func SplitBySpace(s string) []string {
-	return strings.Split(s, " ")
-}
-
-// ContainsPart 判断 target 是否包含 regionParts 中的任意片段（模糊匹配）
-func ContainsPart(target string, REGION string) bool {
-	regionParts := SplitBySpace(REGION)
-
-	for _, rp := range regionParts {
-		//fmt.Println("regionParts:", rp)
-		if strings.Contains(target, rp) {
-			return true
-		}
-	}
-	return false
-}
-
-/*
-func main() {
-	REGION := "中国 内网"
-
-	fmt.Println("结果1:", ContainsPart("美国", REGION)) // true
-}
-*/

warning_ding.go

@@ -1,83 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"encoding/json"
-	"io"
-	"log"
-	"net/http"
-	"sync"
-	"time"
-)
-
-var (
-	WarningList     = make(map[string]string) // 存储 IP 和位置的映射
-	WarningListLock = sync.RWMutex{}
-
-	dingtalkWebhook = "https://oapi.dingtalk.com/robot/send?access_token=7f069c672cb878987aa6772cca336740eece4ce36bde12b51b45e9f440e0565a" // 替换为你的 token
-)
-
-// 发送钉钉 Markdown 消息
-func sendDingTalkMessage(title, text string) {
-	if len(text) > 1900 {
-		text = text[:1900] + "\n...(内容过长，已截断)"
-	}
-
-	msg := map[string]interface{}{
-		"msgtype": "markdown",
-		"markdown": map[string]string{
-			"title": title,
-			"text":  "### Warning " + title + "\n" + text,
-		},
-	}
-
-	jsonData, err := json.Marshal(msg)
-	if err != nil {
-		log.Println("JSON 编码失败:", err)
-		return
-	}
-
-	client := &http.Client{Timeout: 5 * time.Second}
-	resp, err := client.Post(dingtalkWebhook, "application/json", bytes.NewBuffer(jsonData))
-	if err != nil {
-		log.Println("发送钉钉消息失败:", err)
-		return
-	}
-	defer resp.Body.Close()
-
-	body, _ := io.ReadAll(resp.Body)
-	var result map[string]interface{}
-	if err := json.Unmarshal(body, &result); err != nil {
-		log.Println("解析钉钉响应失败:", err)
-		return
-	}
-
-	if result["errcode"].(float64) != 0 {
-		log.Println("钉钉返回错误:", result["errmsg"])
-	} else {
-		log.Println("钉钉告警已发送成功")
-	}
-}
-
-func warning_ding(ipStr string, position string) {
-	WarningListLock.Lock()
-	defer WarningListLock.Unlock()
-
-	WarningList[ipStr] = position
-
-	if len(WarningList) == 1000 {
-		var content string
-		for ip, pos := range WarningList {
-			line := "- " + ip + ", " + pos + "\n"
-			content += line
-			log.Println(ip, pos)
-		}
-
-		log.Println("警告列表已满，发送钉钉告警并清空 map")
-
-		//go sendDingTalkMessage("⚠️ 告警列表达到上限"+local_ipv4_addr, content)
-
-		// 清空 map
-		WarningList = make(map[string]string)
-	}
-}