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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| package api | ||
|
|
||
| import ( | ||
| "assistant/config" | ||
| "assistant/logging" | ||
| "assistant/types" | ||
| "encoding/json" | ||
| "fmt" | ||
| "github.com/gorilla/mux" | ||
| "github.com/rs/zerolog" | ||
| "net" | ||
| "net/http" | ||
| "os" | ||
| "os/signal" | ||
| "syscall" | ||
| ) | ||
|
|
||
| func Start(config *config.ProjectConfig, slitherOutput *types.SlitherOutput) { | ||
| port := fmt.Sprint(":", config.Port) | ||
|
|
||
| if port == ":" { | ||
| port = ":8080" // Default port | ||
| } | ||
|
|
||
| // Create sub-logger for api module | ||
| logger := logging.NewLogger(zerolog.InfoLevel) | ||
| logger.AddWriter(os.Stdout, logging.UNSTRUCTURED, true) | ||
|
|
||
| // Create a new router | ||
| router := mux.NewRouter() | ||
|
|
||
| // Attach middleware | ||
| attachMiddleware(router) | ||
|
|
||
| // Serve the contracts on a subrouter | ||
| router.HandleFunc("/contracts", func(w http.ResponseWriter, r *http.Request) { | ||
| w.WriteHeader(http.StatusOK) | ||
| err := json.NewEncoder(w).Encode(slitherOutput) | ||
| if err != nil { | ||
| logger.Error("Failed to encode contracts: ", err) | ||
| return | ||
| } | ||
| }) | ||
|
|
||
| var listener net.Listener | ||
| var err error | ||
|
|
||
| for i := 0; i < 10; i++ { | ||
| listener, err = net.Listen("tcp", port) | ||
| if err == nil { | ||
| break | ||
| } | ||
|
|
||
| logger.Info("Server failed to start on port ", port[1:]) | ||
| port = incrementPort(port) | ||
| } | ||
|
|
||
| // Stop further execution if the server failed to start | ||
| if listener == nil { | ||
| logger.Error("Failed to start server: ", err) | ||
| return | ||
| } | ||
|
|
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| logger.Info("Server started on port ", port[1:]) | ||
|
|
||
| // Create a channel to receive interrupt signals | ||
| sigChan := make(chan os.Signal, 1) | ||
| signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM) | ||
|
|
||
| // Start the server in a separate goroutine | ||
| serverErrorChan := make(chan error, 1) | ||
| go func() { | ||
| serverErrorChan <- http.Serve(listener, router) | ||
| }() | ||
|
|
||
| // Gracefully shutdown the server if a server error is encountered | ||
| select { | ||
| case <-sigChan: | ||
| logger.Info("Shutting down server...") | ||
| err := listener.Close() | ||
| if err != nil { | ||
| logger.Error("Failed to shut down server: ", err) | ||
| return | ||
| } | ||
| case err := <-serverErrorChan: | ||
| logger.Error("Server error: ", err) | ||
| } | ||
| } | ||
|
|
||
| func incrementPort(port string) string { | ||
| var portNum int | ||
|
|
||
| _, err := fmt.Sscanf(port, ":%d", &portNum) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| return fmt.Sprintf(":%d", portNum+1) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| package api | ||
|
|
||
| import ( | ||
| "github.com/gorilla/mux" | ||
| "net/http" | ||
| ) | ||
|
|
||
| func setHeaders(next http.Handler) http.Handler { | ||
| return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| // Set default headers | ||
| w.Header().Set("Content-Type", "application/json") | ||
|
|
||
| // Handle CORS headers | ||
| w.Header().Set("Access-Control-Allow-Origin", "*") | ||
| w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE") | ||
| w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization") | ||
|
|
||
| next.ServeHTTP(w, r) | ||
| }) | ||
| } | ||
|
|
||
| func attachMiddleware(router *mux.Router) { | ||
| router.Use(setHeaders) | ||
| } |
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