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0df7466d2b
This change addresses two issues with commands that re-used flags from common packages: 1) cobra.Command definitions did not include the command specific prefix in doc strings. 2) Command specific flag prefixes were added after generating command doc strings.
92 lines
3.2 KiB
Go
92 lines
3.2 KiB
Go
package http
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import (
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"bytes"
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"html/template"
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"log"
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"github.com/rclone/rclone/fs/config/flags"
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"github.com/spf13/pflag"
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)
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// AuthHelp returns text describing the http authentication to add to the command help.
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func AuthHelp(prefix string) string {
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help := `
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#### Authentication
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By default this will serve files without needing a login.
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You can either use an htpasswd file which can take lots of users, or
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set a single username and password with the ` + "`--{{ .Prefix }}user` and `--{{ .Prefix }}pass`" + ` flags.
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Use ` + "`--{{ .Prefix }}htpasswd /path/to/htpasswd`" + ` to provide an htpasswd file. This is
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in standard apache format and supports MD5, SHA1 and BCrypt for basic
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authentication. Bcrypt is recommended.
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To create an htpasswd file:
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touch htpasswd
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htpasswd -B htpasswd user
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htpasswd -B htpasswd anotherUser
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The password file can be updated while rclone is running.
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Use ` + "`--{{ .Prefix }}realm`" + ` to set the authentication realm.
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Use ` + "`--{{ .Prefix }}salt`" + ` to change the password hashing salt from the default.
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`
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tmpl, err := template.New("auth help").Parse(help)
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if err != nil {
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log.Fatal("Fatal error parsing template", err)
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}
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data := struct {
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Prefix string
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}{
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Prefix: prefix,
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}
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buf := &bytes.Buffer{}
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err = tmpl.Execute(buf, data)
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if err != nil {
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log.Fatal("Fatal error executing template", err)
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}
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return buf.String()
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}
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// CustomAuthFn if used will be used to authenticate user, pass. If an error
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// is returned then the user is not authenticated.
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//
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// If a non nil value is returned then it is added to the context under the key
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type CustomAuthFn func(user, pass string) (value interface{}, err error)
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// AuthConfig contains options for the http authentication
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type AuthConfig struct {
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HtPasswd string // htpasswd file - if not provided no authentication is done
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Realm string // realm for authentication
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BasicUser string // single username for basic auth if not using Htpasswd
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BasicPass string // password for BasicUser
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Salt string // password hashing salt
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CustomAuthFn CustomAuthFn `json:"-"` // custom Auth (not set by command line flags)
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}
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// AddFlagsPrefix adds flags to the flag set for AuthConfig
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func (cfg *AuthConfig) AddFlagsPrefix(flagSet *pflag.FlagSet, prefix string) {
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flags.StringVarP(flagSet, &cfg.HtPasswd, prefix+"htpasswd", "", cfg.HtPasswd, "A htpasswd file - if not provided no authentication is done")
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flags.StringVarP(flagSet, &cfg.Realm, prefix+"realm", "", cfg.Realm, "Realm for authentication")
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flags.StringVarP(flagSet, &cfg.BasicUser, prefix+"user", "", cfg.BasicUser, "User name for authentication")
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flags.StringVarP(flagSet, &cfg.BasicPass, prefix+"pass", "", cfg.BasicPass, "Password for authentication")
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flags.StringVarP(flagSet, &cfg.Salt, prefix+"salt", "", cfg.Salt, "Password hashing salt")
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}
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// AddAuthFlagsPrefix adds flags to the flag set for AuthConfig
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func AddAuthFlagsPrefix(flagSet *pflag.FlagSet, prefix string, cfg *AuthConfig) {
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cfg.AddFlagsPrefix(flagSet, prefix)
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}
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// DefaultAuthCfg returns a new config which can be customized by command line flags
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func DefaultAuthCfg() AuthConfig {
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return AuthConfig{
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Salt: "dlPL2MqE",
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}
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}
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