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@@ -34,6 +34,10 @@ type DailyRateLimitConfig struct {
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BlockedCountries []string `mapstructure:"blocked_countries"` // 被阻止的国家/地区
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EnableProxyCheck bool `mapstructure:"enable_proxy_check"` // 是否检查代理
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MaxConcurrent int `mapstructure:"max_concurrent"` // 最大并发请求数
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// 路径排除配置
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ExcludePaths []string `mapstructure:"exclude_paths"` // 排除频率限制的路径
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// 域名排除配置
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ExcludeDomains []string `mapstructure:"exclude_domains"` // 排除频率限制的域名
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}
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// DailyRateLimitMiddleware 每日请求限制中间件
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@@ -94,6 +98,19 @@ func (m *DailyRateLimitMiddleware) Handle() gin.HandlerFunc {
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return func(c *gin.Context) {
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ctx := c.Request.Context()
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// 检查是否在排除路径中
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if m.isExcludedPath(c.Request.URL.Path) {
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c.Next()
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return
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}
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// 检查是否在排除域名中
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host := c.Request.Host
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if m.isExcludedDomain(host) {
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c.Next()
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return
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}
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// 获取客户端标识
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clientIP := m.getClientIP(c)
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@@ -177,6 +194,64 @@ func (m *DailyRateLimitMiddleware) Handle() gin.HandlerFunc {
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}
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}
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// isExcludedDomain 检查域名是否在排除列表中
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func (m *DailyRateLimitMiddleware) isExcludedDomain(host string) bool {
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for _, excludeDomain := range m.limitConfig.ExcludeDomains {
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// 支持通配符匹配
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if strings.HasPrefix(excludeDomain, "*") {
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// 后缀匹配,如 "*.api.example.com" 匹配 "api.example.com"
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if strings.HasSuffix(host, excludeDomain[1:]) {
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return true
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}
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} else if strings.HasSuffix(excludeDomain, "*") {
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// 前缀匹配,如 "api.*" 匹配 "api.example.com"
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if strings.HasPrefix(host, excludeDomain[:len(excludeDomain)-1]) {
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return true
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}
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} else {
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// 精确匹配
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if host == excludeDomain {
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return true
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}
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}
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}
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return false
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}
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// isExcludedPath 检查路径是否在排除列表中
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func (m *DailyRateLimitMiddleware) isExcludedPath(path string) bool {
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for _, excludePath := range m.limitConfig.ExcludePaths {
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// 支持多种匹配模式
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if strings.HasPrefix(excludePath, "*") {
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// 前缀匹配,如 "*api_name" 匹配 "/api/v1/any_api_name"
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if strings.Contains(path, excludePath[1:]) {
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return true
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}
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} else if strings.HasSuffix(excludePath, "*") {
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// 后缀匹配,如 "/api/v1/*" 匹配 "/api/v1/any_api_name"
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if strings.HasPrefix(path, excludePath[:len(excludePath)-1]) {
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return true
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}
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} else if strings.Contains(excludePath, "*") {
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// 中间通配符匹配,如 "/api/v1/*api_name" 匹配 "/api/v1/any_api_name"
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parts := strings.Split(excludePath, "*")
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if len(parts) == 2 {
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prefix := parts[0]
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suffix := parts[1]
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if strings.HasPrefix(path, prefix) && strings.HasSuffix(path, suffix) {
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return true
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}
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}
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} else {
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// 精确匹配
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if path == excludePath {
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return true
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}
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}
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}
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return false
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}
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// IsGlobal 是否为全局中间件
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func (m *DailyRateLimitMiddleware) IsGlobal() bool {
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return false // 不是全局中间件,需要手动应用到特定路由
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