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feat(internal/handler): add CORS support and handle OPTIONS requests in MirrorProxyHandler

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wood chen 2024-11-13 18:24:48 +08:00
parent 2f0be5f38d
commit a7753f90d5
1 changed files with 16 additions and 0 deletions
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16
internal/handler/mirror_proxy.go
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@ -19,6 +19,22 @@ func NewMirrorProxyHandler() *MirrorProxyHandler {
func (h *MirrorProxyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
startTime := time.Now()
// 设置 CORS 头
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD, PATCH")
w.Header().Set("Access-Control-Allow-Headers", "*")
// 如果需要允许发送凭证（cookies等），可以设置：
// w.Header().Set("Access-Control-Allow-Credentials", "true")
// 处理 OPTIONS 请求（预检请求）
if r.Method == "OPTIONS" {
w.WriteHeader(http.StatusOK)
log.Printf("| %-6s | %3d | %12s | %15s | %10s | %-30s | CORS Preflight",
r.Method, http.StatusOK, time.Since(startTime),
utils.GetClientIP(r), "-", r.URL.Path)
return
}
// 从路径中提取实际URL
// 例如：/mirror/https://example.com/path 变成 https://example.com/path
actualURL := strings.TrimPrefix(r.URL.Path, "/mirror/")