resetUserEmail.php

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<?php
require_once __DIR__ . '/Maintenance.php';
 
class ResetUserEmail extends Maintenance {
    public function __construct() {
        parent::__construct();
 
        $this->addDescription( "Resets a user's email" );
 
        $this->addArg( 'user', 'Username or user ID, if starts with #' );
        $this->addArg( 'email', 'Email to assign' );
 
        $this->addOption( 'no-reset-password', 'Don\'t reset the user\'s password' );
    }
 
    public function execute() {
        $userName = $this->getArg( 0 );
        if ( preg_match( '/^#\d+$/', $userName ) ) {
            $user = User::newFromId( (int)substr( $userName, 1 ) );
        } else {
            $user = User::newFromName( $userName );
        }
        if ( !$user || !$user->isRegistered() || !$user->loadFromId() ) {
            $this->fatalError( "Error: user '$userName' does not exist\n" );
        }
 
        $email = $this->getArg( 1, '' );
        if ( $email !== '' && !Sanitizer::validateEmail( $email ) ) {
            $this->fatalError( "Error: email '$email' is not valid\n" );
        }
 
        // Code from https://wikitech.wikimedia.org/wiki/Password_reset
        $user->setEmail( $email );
        $user->setEmailAuthenticationTimestamp( wfTimestampNow() );
        $user->saveSettings();
 
        if ( !$this->hasOption( 'no-reset-password' ) ) {
            // Kick whomever is currently controlling the account off if possible
            $password = PasswordFactory::generateRandomPasswordString( 128 );
            $status = $user->changeAuthenticationData( [
                'username' => $user->getName(),
                'password' => $password,
                'retype' => $password,
            ] );
            if ( !$status->isGood() ) {
                $this->error( "Password couldn't be reset because:\n"
                    . $status->getMessage( false, false, 'en' )->text() );
            }
        }
        $this->output( "Done!\n" );
    }
}
 
$maintClass = ResetUserEmail::class;
require_once RUN_MAINTENANCE_IF_MAIN;