134 lines
4 KiB
Go
134 lines
4 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/wso2/open-mcp-auth-proxy/internal/authz"
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"github.com/wso2/open-mcp-auth-proxy/internal/config"
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"github.com/wso2/open-mcp-auth-proxy/internal/constants"
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logger "github.com/wso2/open-mcp-auth-proxy/internal/logging"
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"github.com/wso2/open-mcp-auth-proxy/internal/proxy"
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"github.com/wso2/open-mcp-auth-proxy/internal/subprocess"
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"github.com/wso2/open-mcp-auth-proxy/internal/util"
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)
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func main() {
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demoMode := flag.Bool("demo", false, "Use Asgardeo-based provider (demo).")
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asgardeoMode := flag.Bool("asgardeo", false, "Use Asgardeo-based provider (asgardeo).")
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debugMode := flag.Bool("debug", false, "Enable debug logging")
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stdioMode := flag.Bool("stdio", false, "Use stdio transport mode instead of SSE")
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flag.Parse()
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logger.SetDebug(*debugMode)
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// 1. Load config
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cfg, err := config.LoadConfig("config.yaml")
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if err != nil {
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logger.Error("Error loading config: %v", err)
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os.Exit(1)
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}
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// Override transport mode if stdio flag is set
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if *stdioMode {
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cfg.TransportMode = config.StdioTransport
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// Ensure stdio is enabled
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cfg.Stdio.Enabled = true
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// Re-validate config
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if err := cfg.Validate(); err != nil {
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logger.Error("Configuration error: %v", err)
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os.Exit(1)
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}
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}
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logger.Info("Using transport mode: %s", cfg.TransportMode)
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logger.Info("Using MCP server base URL: %s", cfg.BaseURL)
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logger.Info("Using MCP paths: SSE=%s, Messages=%s", cfg.Paths.SSE, cfg.Paths.Messages)
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// 2. Start subprocess if configured and in stdio mode
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var procManager *subprocess.Manager
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if cfg.TransportMode == config.StdioTransport && cfg.Stdio.Enabled {
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// Ensure all required dependencies are available
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if err := subprocess.EnsureDependenciesAvailable(cfg.Stdio.UserCommand); err != nil {
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logger.Warn("%v", err)
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logger.Warn("Subprocess may fail to start due to missing dependencies")
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}
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procManager = subprocess.NewManager()
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if err := procManager.Start(cfg); err != nil {
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logger.Warn("Failed to start subprocess: %v", err)
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}
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} else if cfg.TransportMode == config.SSETransport {
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logger.Info("Using SSE transport mode, not starting subprocess")
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}
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// 3. Create the chosen provider
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var provider authz.Provider
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if *demoMode {
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cfg.Mode = "demo"
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cfg.AuthServerBaseURL = constants.ASGARDEO_BASE_URL + cfg.Demo.OrgName + "/oauth2"
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cfg.JWKSURL = constants.ASGARDEO_BASE_URL + cfg.Demo.OrgName + "/oauth2/jwks"
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provider = authz.NewAsgardeoProvider(cfg)
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} else if *asgardeoMode {
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cfg.Mode = "asgardeo"
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cfg.AuthServerBaseURL = constants.ASGARDEO_BASE_URL + cfg.Asgardeo.OrgName + "/oauth2"
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cfg.JWKSURL = constants.ASGARDEO_BASE_URL + cfg.Asgardeo.OrgName + "/oauth2/jwks"
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provider = authz.NewAsgardeoProvider(cfg)
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} else {
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cfg.Mode = "default"
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cfg.JWKSURL = cfg.Default.JWKSURL
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cfg.AuthServerBaseURL = cfg.Default.BaseURL
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provider = authz.NewDefaultProvider(cfg)
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}
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// 4. (Optional) Fetch JWKS if you want local JWT validation
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if err := util.FetchJWKS(cfg.JWKSURL); err != nil {
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logger.Error("Failed to fetch JWKS: %v", err)
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os.Exit(1)
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}
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// 5. Build the main router
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mux := proxy.NewRouter(cfg, provider)
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listen_address := fmt.Sprintf("0.0.0.0:%d", cfg.ListenPort)
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// 6. Start the server
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srv := &http.Server{
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Addr: listen_address,
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Handler: mux,
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}
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go func() {
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logger.Info("Server listening on %s", listen_address)
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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logger.Error("Server error: %v", err)
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os.Exit(1)
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}
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}()
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// 7. Wait for shutdown signal
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
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<-stop
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logger.Info("Shutting down...")
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// 8. First terminate subprocess if running
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if procManager != nil && procManager.IsRunning() {
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procManager.Shutdown()
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}
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// 9. Then shutdown the server
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logger.Info("Shutting down HTTP server...")
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shutdownCtx, cancel := proxy.NewShutdownContext(5 * time.Second)
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defer cancel()
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if err := srv.Shutdown(shutdownCtx); err != nil {
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logger.Error("HTTP server shutdown error: %v", err)
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}
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logger.Info("Stopped.")
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}
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