mirror of
https://github.com/shadow1ng/fscan.git
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111 lines
3.0 KiB
Go
111 lines
3.0 KiB
Go
package rpc
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import (
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"context"
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"net"
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"net/http"
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"time"
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"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
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"github.com/shadow1ng/fscan/Common"
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pb "github.com/shadow1ng/fscan/RPC/lib"
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"github.com/shadow1ng/fscan/RPC/service"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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)
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var internalSecretKey string
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// 启动 gRPC + HTTP Gateway 服务（仅当设置了 API 地址时）
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func StartApiServer() error {
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if Common.ApiAddr == "" {
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return nil
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}
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if Common.SecretKey == "" {
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internalSecretKey = time.Now().Format("20060102150405")
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}
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grpcAddr := "127.0.0.1:50051"
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httpAddr := validateHTTPAddr(Common.ApiAddr, ":8088")
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go runGRPCServer(grpcAddr)
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if err := runHTTPGateway(httpAddr, grpcAddr); err != nil {
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Common.LogError("HTTP 启动失败: " + err.Error())
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return err
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}
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return nil
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}
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// 启动 gRPC 服务
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func runGRPCServer(addr string) {
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lis, err := net.Listen("tcp", addr)
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if err != nil {
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Common.LogError("监听失败: " + err.Error())
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return
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}
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s := grpc.NewServer()
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pb.RegisterFscanServiceServer(s, &service.FscanService{})
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Common.LogSuccess("✅ gRPC 服务已启动，地址: " + addr)
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if err := s.Serve(lis); err != nil {
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Common.LogError("gRPC 启动失败: " + err.Error())
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}
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}
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// 启动 HTTP Gateway
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func runHTTPGateway(httpAddr, grpcAddr string) error {
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ctx := context.Background()
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mux := runtime.NewServeMux()
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opts := []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials())}
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err := pb.RegisterFscanServiceHandlerFromEndpoint(ctx, mux, grpcAddr, opts)
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if err != nil {
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return err
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}
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// 使用中间件包装 mux
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handler := applyMiddlewares(mux)
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Common.LogSuccess("✅ HTTP Gateway 已启动，地址: http://" + httpAddr)
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Common.LogSuccess("✅ API Secret: " + internalSecretKey)
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return http.ListenAndServe(httpAddr, handler)
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}
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// 注册 HTTP 中间件
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func applyMiddlewares(handler http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
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w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")
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if r.Method == "OPTIONS" {
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w.WriteHeader(http.StatusOK)
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return
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}
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secret := r.Header.Get("Fscan-API-SECRET")
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if secret == "" || secret != internalSecretKey {
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http.Error(w, `无效的 API Secret，请通过请求头 Fscan-API-SECRET 提供正确的密钥。
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如果你未手动配置 SecretKey，服务会在启动时自动生成一个随机密钥，并输出到日志中。`, http.StatusUnauthorized)
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return
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}
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handler.ServeHTTP(w, r)
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})
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}
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// 校验监听地址格式，格式非法使用默认
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func validateHTTPAddr(input, fallback string) string {
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if input == "" {
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Common.LogInfo("未指定 API 地址，使用默认地址: " + fallback)
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return fallback
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}
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_, _, err := net.SplitHostPort(input)
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if err != nil {
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Common.LogError("无效的 API 地址格式 [" + input + "]，使用默认地址: " + fallback)
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return fallback
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}
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return input
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}
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