152 lines
3.5 KiB
Go
152 lines
3.5 KiB
Go
package cmd
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import (
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"context"
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"errors"
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"fmt"
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"log"
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"net/http"
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"os"
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"os/signal"
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"otpm/database"
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"otpm/handlers"
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"otpm/utils"
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"syscall"
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"time"
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"github.com/jmoiron/sqlx"
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"github.com/julienschmidt/httprouter"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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var rootCmd = &cobra.Command{
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Use: "otpm",
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Short: "otp backend for microapp on wechat",
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Run: func(cmd *cobra.Command, args []string) {
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startApp()
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},
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}
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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func init() {
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cobra.OnInitialize(initConfig)
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rootCmd.PersistentFlags().StringP("config", "c", "", "config file (default is $HOME/config.yaml)")
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rootCmd.PersistentFlags().StringP("driver", "d", "sqlite3", "database driver (sqlite3, postgres, mysql)")
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rootCmd.PersistentFlags().StringP("dsn", "s", "", "database connection string")
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rootCmd.PersistentFlags().StringP("port", "p", "8080", "port to listen on")
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viper.BindPFlag("database.driver", rootCmd.PersistentFlags().Lookup("driver"))
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viper.BindPFlag("database.dsn", rootCmd.PersistentFlags().Lookup("dsn"))
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viper.BindPFlag("port", rootCmd.PersistentFlags().Lookup("port"))
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}
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func initConfig() {
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if cfgFile := viper.GetString("config"); cfgFile != "" {
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viper.SetConfigFile(cfgFile)
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} else {
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viper.AddConfigPath(".")
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viper.SetConfigName("config")
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viper.SetConfigType("yaml")
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}
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if err := viper.ReadInConfig(); err != nil {
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log.Fatalf("Error reading config file: %v", err)
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}
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}
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type App struct {
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db *sqlx.DB
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router http.Handler
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port int
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}
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func NewApp() (*App, error) {
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db, err := connectDB()
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if err != nil {
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return nil, err
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}
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if err := runMigrations(db); err != nil {
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return nil, err
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}
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router := setupRouter(db)
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port := viper.GetInt("port")
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return &App{
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db: db,
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router: router,
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port: port,
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}, nil
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}
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func connectDB() (*sqlx.DB, error) {
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db, err := database.InitDB()
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if err != nil {
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return nil, fmt.Errorf("failed to connect to the database: %v", err)
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}
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return db, nil
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}
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func runMigrations(db *sqlx.DB) error {
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if err := database.MigrateDB(db); err != nil {
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log.Fatalf("Error migrating the database: %v", err)
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return fmt.Errorf("error migrating the database: %w", err)
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}
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return nil
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}
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func setupRouter(db *sqlx.DB) http.Handler {
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handler := &handlers.Handler{DB: db}
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router := httprouter.New()
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router.POST("/login", utils.AdaptHandler(handler.Login))
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router.POST("/refresh", utils.AdaptHandler(utils.AuthMiddleware(handler.RefreshToken)))
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router.POST("/set", utils.AdaptHandler(utils.AuthMiddleware(handler.UpdateOrCreateOtp)))
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router.GET("/get", utils.AdaptHandler(utils.AuthMiddleware(handler.GetOtp)))
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return router
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}
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func (a *App) Start() error {
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server := &http.Server{Addr: fmt.Sprintf(":%d", a.port), Handler: a.router}
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go func() {
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if err := server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Fatalf("Failed to start server: %v", err)
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}
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}()
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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log.Println("Shutting down server...")
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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return server.Shutdown(ctx)
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}
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func startApp() {
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app, err := NewApp()
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if err != nil {
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log.Fatalf("Failed to initialize application: %v", err)
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}
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defer func() {
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if err := app.db.Close(); err != nil {
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log.Printf("Failed to close database connection: %v", err)
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}
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}()
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if err := app.Start(); err != nil {
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log.Fatalf("Failed to start application: %v", err)
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}
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}
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