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// Copyright 2017 Vector Creations Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"flag"
"fmt"
"io"
"io/ioutil"
"os"
"regexp"
"strings"
"github.com/matrix-org/dendrite/setup"
"github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/dendrite/userapi/storage"
"github.com/sirupsen/logrus"
"golang.org/x/term"
)
const usage = `Usage: %s
Creates a new user account on the homeserver.
Example:
# provide password by parameter
%s --config dendrite.yaml -username alice -password foobarbaz
# use password from file
%s --config dendrite.yaml -username alice -passwordfile my.pass
# ask user to provide password
%s --config dendrite.yaml -username alice
# read password from stdin
%s --config dendrite.yaml -username alice -passwordstdin < my.pass
cat my.pass | %s --config dendrite.yaml -username alice -passwordstdin
# reset password for a user, can be used with a combination above to read the password
%s --config dendrite.yaml -reset-password -username alice -password foobarbaz
Arguments:
`
var (
username = flag.String("username", "", "The username of the account to register (specify the localpart only, e.g. 'alice' for '@alice:domain.com')")
password = flag.String("password", "", "The password to associate with the account")
pwdFile = flag.String("passwordfile", "", "The file to use for the password (e.g. for automated account creation)")
pwdStdin = flag.Bool("passwordstdin", false, "Reads the password from stdin")
pwdLess = flag.Bool("passwordless", false, "Create a passwordless account, e.g. if only an accesstoken is required")
isAdmin = flag.Bool("admin", false, "Create an admin account")
resetPassword = flag.Bool("reset-password", false, "Resets the password for the given username")
validUsernameRegex = regexp.MustCompile(`^[0-9a-z_\-=./]+$`)
)
func main() {
name := os.Args[0]
flag.Usage = func() {
_, _ = fmt.Fprintf(os.Stderr, usage, name, name, name, name, name, name, name)
flag.PrintDefaults()
}
cfg := setup.ParseFlags(true)
if *username == "" {
flag.Usage()
os.Exit(1)
}
if *pwdLess && *resetPassword {
logrus.Fatalf("Can not reset to an empty password, unable to login afterwards.")
}
if !validUsernameRegex.MatchString(*username) {
logrus.Warn("Username can only contain characters a-z, 0-9, or '_-./='")
os.Exit(1)
}
if len(fmt.Sprintf("@%s:%s", *username, cfg.Global.ServerName)) > 255 {
logrus.Fatalf("Username can not be longer than 255 characters: %s", fmt.Sprintf("@%s:%s", *username, cfg.Global.ServerName))
}
var pass string
var err error
if !*pwdLess {
pass, err = getPassword(*password, *pwdFile, *pwdStdin, os.Stdin)
if err != nil {
logrus.Fatalln(err)
}
}
accountDB, err := storage.NewUserAPIDatabase(
nil,
&cfg.UserAPI.AccountDatabase,
cfg.Global.ServerName,
cfg.UserAPI.BCryptCost,
cfg.UserAPI.OpenIDTokenLifetimeMS,
0, // TODO
cfg.Global.ServerNotices.LocalPart,
)
if err != nil {
logrus.WithError(err).Fatalln("Failed to connect to the database")
}
accType := api.AccountTypeUser
if *isAdmin {
accType = api.AccountTypeAdmin
}
available, err := accountDB.CheckAccountAvailability(context.Background(), *username)
if err != nil {
logrus.Fatalln("Unable check username existence.")
}
if *resetPassword {
if available {
logrus.Fatalln("Username could not be found.")
}
err = accountDB.SetPassword(context.Background(), *username, pass)
if err != nil {
logrus.Fatalf("Failed to update password for user %s: %s", *username, err.Error())
}
if _, err = accountDB.RemoveAllDevices(context.Background(), *username, ""); err != nil {
logrus.Fatalf("Failed to remove all devices: %s", err.Error())
}
logrus.Infof("Updated password for user %s and invalidated all logins\n", *username)
return
}
if !available {
logrus.Fatalln("Username is already in use.")
}
_, err = accountDB.CreateAccount(context.Background(), *username, pass, "", accType)
if err != nil {
logrus.Fatalln("Failed to create the account:", err.Error())
}
logrus.Infoln("Created account", *username)
}
func getPassword(password, pwdFile string, pwdStdin bool, r io.Reader) (string, error) {
// read password from file
if pwdFile != "" {
pw, err := ioutil.ReadFile(pwdFile)
if err != nil {
return "", fmt.Errorf("Unable to read password from file: %v", err)
}
return strings.TrimSpace(string(pw)), nil
}
// read password from stdin
if pwdStdin {
data, err := ioutil.ReadAll(r)
if err != nil {
return "", fmt.Errorf("Unable to read password from stdin: %v", err)
}
return strings.TrimSpace(string(data)), nil
}
// If no parameter was set, ask the user to provide the password
if password == "" {
fmt.Print("Enter Password: ")
bytePassword, err := term.ReadPassword(int(os.Stdin.Fd()))
if err != nil {
return "", fmt.Errorf("Unable to read password: %v", err)
}
fmt.Println()
fmt.Print("Confirm Password: ")
bytePassword2, err := term.ReadPassword(int(os.Stdin.Fd()))
if err != nil {
return "", fmt.Errorf("Unable to read password: %v", err)
}
fmt.Println()
if strings.TrimSpace(string(bytePassword)) != strings.TrimSpace(string(bytePassword2)) {
return "", fmt.Errorf("Entered passwords don't match")
}
return strings.TrimSpace(string(bytePassword)), nil
}
return password, nil
}
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