yml2213
85b407fddf
- 输入框改为单层大尺寸 textarea，修复双层边框 - 新增表情选择器（工作台/Widget），插入 Unicode 表情 - 会话记录访客 IP/地区/UA，工作台顶栏与侧栏展示 - 去掉表情面板无用横向滚动条
134 lines
3.7 KiB
Go
134 lines
3.7 KiB
Go
package handler
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import (
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"net"
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"strings"
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"github.com/gin-gonic/gin"
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)
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// resolveVisitorIP 优先信任反代头，回落到 Gin ClientIP。
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func resolveVisitorIP(c *gin.Context) string {
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candidates := []string{
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c.GetHeader("CF-Connecting-IP"),
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c.GetHeader("True-Client-IP"),
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c.GetHeader("X-Real-IP"),
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}
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if xff := c.GetHeader("X-Forwarded-For"); xff != "" {
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// 取最左侧第一个非空 IP
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for _, part := range strings.Split(xff, ",") {
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part = strings.TrimSpace(part)
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if part != "" {
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candidates = append(candidates, part)
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break
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}
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}
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}
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for _, raw := range candidates {
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ip := strings.TrimSpace(raw)
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if ip == "" {
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continue
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}
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// 去掉端口
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if host, _, err := net.SplitHostPort(ip); err == nil {
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ip = host
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}
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if net.ParseIP(ip) != nil {
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return ip
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}
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}
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ip := c.ClientIP()
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if host, _, err := net.SplitHostPort(ip); err == nil {
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return host
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}
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return ip
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}
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// resolveVisitorRegion 基于 IP 与常见 CDN 国家头做粗粒度地区，无需第三方库。
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// 私网/本机显示「内网」；有国家头则映射中文名；否则「未知」。
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func resolveVisitorRegion(c *gin.Context, ip string) string {
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// Cloudflare / 部分网关国家码
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country := strings.ToUpper(strings.TrimSpace(c.GetHeader("CF-IPCountry")))
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if country == "" {
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country = strings.ToUpper(strings.TrimSpace(c.GetHeader("X-AppEngine-Country")))
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}
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if country == "" {
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country = strings.ToUpper(strings.TrimSpace(c.GetHeader("CloudFront-Viewer-Country")))
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}
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if country != "" && country != "XX" && country != "T1" {
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if name, ok := countryNameCN(country); ok {
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return name
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}
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return country
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}
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parsed := net.ParseIP(ip)
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if parsed == nil {
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return "未知"
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}
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if parsed.IsLoopback() || parsed.IsPrivate() || parsed.IsLinkLocalUnicast() || parsed.IsLinkLocalMulticast() {
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return "内网"
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}
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// 未接入 GeoIP 库时，公网 IP 地区暂标未知（可后续接入离线库）
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return "未知"
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}
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func countryNameCN(code string) (string, bool) {
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names := map[string]string{
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"CN": "中国", "HK": "中国香港", "MO": "中国澳门", "TW": "中国台湾",
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"US": "美国", "JP": "日本", "KR": "韩国", "SG": "新加坡",
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"GB": "英国", "DE": "德国", "FR": "法国", "AU": "澳大利亚",
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"CA": "加拿大", "RU": "俄罗斯", "IN": "印度", "BR": "巴西",
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"MY": "马来西亚", "TH": "泰国", "VN": "越南", "PH": "菲律宾",
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"ID": "印度尼西亚", "AE": "阿联酋", "SA": "沙特阿拉伯",
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}
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name, ok := names[code]
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return name, ok
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}
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// summarizeUserAgent 将 UA 压缩为可读设备摘要，如 "Chrome / macOS"。
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func summarizeUserAgent(ua string) string {
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ua = strings.TrimSpace(ua)
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if ua == "" {
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return ""
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}
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browser := "浏览器"
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osName := "未知系统"
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switch {
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case strings.Contains(ua, "Edg/"):
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browser = "Edge"
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case strings.Contains(ua, "Chrome/") && !strings.Contains(ua, "Edg/"):
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browser = "Chrome"
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case strings.Contains(ua, "Firefox/"):
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browser = "Firefox"
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case strings.Contains(ua, "Safari/") && !strings.Contains(ua, "Chrome/"):
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browser = "Safari"
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case strings.Contains(ua, "MicroMessenger"):
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browser = "微信"
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}
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switch {
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case strings.Contains(ua, "Windows"):
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osName = "Windows"
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case strings.Contains(ua, "Mac OS X") || strings.Contains(ua, "Macintosh"):
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osName = "macOS"
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case strings.Contains(ua, "Android"):
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osName = "Android"
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case strings.Contains(ua, "iPhone") || strings.Contains(ua, "iPad"):
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osName = "iOS"
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case strings.Contains(ua, "Linux"):
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osName = "Linux"
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}
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return browser + " / " + osName
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}
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func captureVisitorMeta(c *gin.Context) (ip, region, ua, device string) {
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ip = resolveVisitorIP(c)
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region = resolveVisitorRegion(c, ip)
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ua = c.Request.UserAgent()
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if len(ua) > 500 {
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ua = ua[:500]
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}
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device = summarizeUserAgent(ua)
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return
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}
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