feat(sys): add self-check functionality for system settings and frpc binary

sys/selfcheck.go

@@ -0,0 +1,53 @@
+package sys
+
+import (
+	"net/http"
+	"fmt"
+	"super-frpc/global"
+	"super-frpc/utils"
+	"super-frpc/postLog"
+)
+
+func SelfCheckHandler(w http.ResponseWriter, r *http.Request) {
+	userID, err := utils.Auth(w, r, http.MethodGet, "visitor", "superuser", "admin")
+	if err != nil {
+		utils.SendErrorResponse(w, http.StatusUnauthorized, "invalid token or timestamp")
+		postLog.Warning(fmt.Sprintf("[SelfCheckHandler] Auth failed: %v, userID: %d", err, userID))
+		return
+	}
+	err = SettingsSelfCheck()
+	if err != nil {
+		utils.SendErrorResponse(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	err = FrpBinaryCheck()
+	if err != nil {
+		utils.SendErrorResponse(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	utils.SendSuccessResponse(w, "Self check passed", nil)
+	postLog.Info(fmt.Sprintf("[SelfCheckHandler] [%d] Self check passed", userID))
+}
+
+func SettingsSelfCheck() error {
+	if global.CurrentConfig.ListenAddr == "" {
+		return fmt.Errorf("listenAddr is not set")
+	}
+	if global.CurrentConfig.ListenPort == "0" {
+		return fmt.Errorf("listenPort is invalid")
+	}
+	if global.CurrentConfig.FrpcPath == "" {
+		return fmt.Errorf("frpcPath is not set")
+	}
+	if global.CurrentConfig.InstancePath == "" {
+		return fmt.Errorf("instancePath is not set")
+	}
+	return nil
+}
+
+func FrpBinaryCheck() error {
+	if !utils.IsFileExist(global.CurrentConfig.FrpcPath) {
+		return fmt.Errorf("frpc binary is not exist")
+	}
+	return nil
+}