314 lines
8.0 KiB
Go
314 lines
8.0 KiB
Go
package cmd
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import (
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"crypto/tls"
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"io"
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"io/fs"
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"log"
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"net"
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"net/http"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"syscall"
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"github.com/spf13/afero"
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"github.com/spf13/cobra"
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"github.com/spf13/pflag"
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v "github.com/spf13/viper"
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lumberjack "gopkg.in/natefinch/lumberjack.v2"
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"github.com/gtsteffaniak/filebrowser/auth"
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"github.com/gtsteffaniak/filebrowser/diskcache"
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fbhttp "github.com/gtsteffaniak/filebrowser/http"
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"github.com/gtsteffaniak/filebrowser/img"
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"github.com/gtsteffaniak/filebrowser/search"
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"github.com/gtsteffaniak/filebrowser/settings"
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"github.com/gtsteffaniak/filebrowser/storage"
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"github.com/gtsteffaniak/filebrowser/users"
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)
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var (
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cfgFile string
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)
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type dirFS struct {
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http.Dir
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}
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func (d dirFS) Open(name string) (fs.File, error) {
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return d.Dir.Open(name)
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}
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func init() {
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cobra.OnInitialize(initConfig)
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cobra.MousetrapHelpText = ""
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rootCmd.SetVersionTemplate("File Browser version {{printf \"%s\" .Version}}\n")
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settings.Initialize()
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log.Println(settings.GlobalConfiguration)
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flags := rootCmd.Flags()
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persistent := rootCmd.PersistentFlags()
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persistent.StringVarP(&cfgFile, "config", "c", "", "config file path")
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persistent.StringP("database", "d", "./filebrowser.db", "database path")
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flags.Bool("noauth", false, "use the noauth auther when using quick setup")
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flags.String("username", "admin", "username for the first user when using quick config")
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flags.String("password", "", "hashed password for the first user when using quick config (default \"admin\")")
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}
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var rootCmd = &cobra.Command{
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Use: "filebrowser",
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Short: "A stylish web-based file browser",
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Long: `
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If you've never run File Browser, you'll need to have a database for
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it. Don't worry: you don't need to setup a separate database server.
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We're using Bolt DB which is a single file database and all managed
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by ourselves.
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If you don't set "config", it will look for a configuration file called
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filebrowser.{json, toml, yaml, yml} in the following directories:
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- ./
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- $HOME/
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- /etc/filebrowser/
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The precedence of the configuration values are as follows:
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- flags
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- environment variables
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- configuration file
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- database values
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- defaults
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Also, if the database path doesn't exist, File Browser will enter into
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the quick setup mode and a new database will be bootstraped and a new
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user created with the credentials from options "username" and "password".`,
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Run: python(func(cmd *cobra.Command, args []string, d pythonData) {
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serverConfig := settings.GlobalConfiguration.Server
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if !d.hadDB {
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quickSetup(cmd.Flags(), d)
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}
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workersCount := serverConfig.NumImageProcessors
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if workersCount < 1 {
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log.Fatal("Image resize workers count could not be < 1")
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}
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imgSvc := img.New(workersCount)
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var fileCache diskcache.Interface = diskcache.NewNoOp()
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cacheDir := "/tmp"
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if cacheDir != "" {
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if err := os.MkdirAll(cacheDir, 0700); err != nil { //nolint:govet,gomnd
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log.Fatalf("can't make directory %s: %s", cacheDir, err)
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}
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fileCache = diskcache.New(afero.NewOsFs(), cacheDir)
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}
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// initialize indexing and schedule indexing ever n minutes (default 5)
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go search.InitializeIndex(serverConfig.IndexingInterval)
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_, err := os.Stat(serverConfig.Root)
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checkErr(err)
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var listener net.Listener
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address := serverConfig.Address + ":" + strconv.Itoa(serverConfig.Port)
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switch {
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case serverConfig.Socket != "":
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listener, err = net.Listen("unix", serverConfig.Socket)
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checkErr(err)
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socketPerm, err := cmd.Flags().GetUint32("socket-perm") //nolint:govet
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checkErr(err)
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err = os.Chmod(serverConfig.Socket, os.FileMode(socketPerm))
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checkErr(err)
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case serverConfig.TLSKey != "" && serverConfig.TLSCert != "":
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cer, err := tls.LoadX509KeyPair(serverConfig.TLSCert, serverConfig.TLSKey) //nolint:govet
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checkErr(err)
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listener, err = tls.Listen("tcp", address, &tls.Config{
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MinVersion: tls.VersionTLS12,
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Certificates: []tls.Certificate{cer}},
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)
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checkErr(err)
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default:
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listener, err = net.Listen("tcp", address)
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checkErr(err)
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}
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sigc := make(chan os.Signal, 1)
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signal.Notify(sigc, os.Interrupt, syscall.SIGTERM)
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go cleanupHandler(listener, sigc)
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assetsFs := dirFS{Dir: http.Dir("frontend/dist")}
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handler, err := fbhttp.NewHandler(imgSvc, fileCache, d.store, &serverConfig, assetsFs)
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checkErr(err)
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defer listener.Close()
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log.Println("Listening on", listener.Addr().String())
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//nolint: gosec
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if err := http.Serve(listener, handler); err != nil {
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log.Fatal(err)
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}
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}, pythonConfig{allowNoDB: true}),
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}
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func cleanupHandler(listener net.Listener, c chan os.Signal) { //nolint:interfacer
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sig := <-c
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log.Printf("Caught signal %s: shutting down.", sig)
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listener.Close()
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os.Exit(0)
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}
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//nolint:gocyclo
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func getRunParams(flags *pflag.FlagSet, st *storage.Storage) *settings.Server {
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server, err := st.Settings.GetServer()
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checkErr(err)
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return server
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}
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// getParamB returns a parameter as a string and a boolean to tell if it is different from the default
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//
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// NOTE: we could simply bind the flags to viper and use IsSet.
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// Although there is a bug on Viper that always returns true on IsSet
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// if a flag is binded. Our alternative way is to manually check
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// the flag and then the value from env/config/gotten by viper.
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// https://github.com/spf13/viper/pull/331
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func getParamB(flags *pflag.FlagSet, key string) (string, bool) {
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value, _ := flags.GetString(key)
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// If set on Flags, use it.
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if flags.Changed(key) {
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return value, true
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}
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// If set through viper (env, config), return it.
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if v.IsSet(key) {
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return v.GetString(key), true
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}
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// Otherwise use default value on flags.
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return value, false
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}
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func getParam(flags *pflag.FlagSet, key string) string {
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val, _ := getParamB(flags, key)
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return val
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}
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func setupLog(logMethod string) {
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switch logMethod {
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case "stdout":
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log.SetOutput(os.Stdout)
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case "stderr":
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log.SetOutput(os.Stderr)
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case "":
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log.SetOutput(io.Discard)
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default:
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log.SetOutput(&lumberjack.Logger{
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Filename: logMethod,
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MaxSize: 100,
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MaxAge: 14,
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MaxBackups: 10,
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})
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}
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}
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func quickSetup(flags *pflag.FlagSet, d pythonData) {
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set := &settings.Settings{
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Key: generateKey(),
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Signup: false,
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CreateUserDir: false,
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UserHomeBasePath: settings.DefaultUsersHomeBasePath,
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Defaults: settings.UserDefaults{
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Scope: ".",
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Locale: "en",
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SingleClick: false,
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Perm: users.Permissions{
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Admin: false,
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Execute: true,
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Create: true,
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Rename: true,
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Modify: true,
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Delete: true,
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Share: true,
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Download: true,
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},
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},
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Frontend: settings.Frontend{},
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Commands: nil,
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Shell: nil,
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Rules: nil,
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}
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var err error
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if settings.GlobalConfiguration.Auth.Method == "noAuth" {
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set.Auth.Method = "noAuth"
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err = d.store.Auth.Save(&auth.NoAuth{})
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} else {
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set.Auth.Method = "json"
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err = d.store.Auth.Save(&auth.JSONAuth{})
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}
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err = d.store.Settings.Save(set)
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checkErr(err)
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ser := &settings.Server{
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BaseURL: getParam(flags, "baseurl"),
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Log: getParam(flags, "log"),
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TLSKey: getParam(flags, "key"),
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TLSCert: getParam(flags, "cert"),
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Root: getParam(flags, "root"),
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}
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err = d.store.Settings.SaveServer(ser)
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checkErr(err)
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username := getParam(flags, "username")
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password := getParam(flags, "password")
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if password == "" {
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password, err = users.HashPwd("admin")
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checkErr(err)
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}
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if username == "" || password == "" {
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log.Fatal("username and password cannot be empty during quick setup")
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}
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user := &users.User{
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Username: username,
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Password: password,
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LockPassword: false,
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}
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set.Defaults.Apply(user)
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user.Perm.Admin = true
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err = d.store.Users.Save(user)
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checkErr(err)
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}
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func initConfig() {
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if cfgFile == "" {
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v.AddConfigPath(".")
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v.AddConfigPath("/etc/filebrowser/")
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v.SetConfigName("filebrowser")
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} else {
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v.SetConfigFile(cfgFile)
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}
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v.SetEnvPrefix("FB")
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v.AutomaticEnv()
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v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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if err := v.ReadInConfig(); err != nil {
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if _, ok := err.(v.ConfigParseError); ok {
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panic(err)
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}
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cfgFile = "No config file used"
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} else {
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cfgFile = "Using config file: " + v.ConfigFileUsed()
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}
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}
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