userOptions.inc

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<?php
// Options we will use
$options = array( 'list', 'nowarn', 'quiet', 'usage', 'dry' );
$optionsWithArgs = array( 'old', 'new' );

require_once __DIR__ . '/commandLine.inc';

class UserOptions {
    public $mQuick;
    public $mQuiet;
    public $mDry;
    public $mAnOption;
    public $mOldValue;
    public $mNewValue;

    private $mMode, $mReady;

    function __construct( $opts, $args ) {
        if ( !$this->checkOpts( $opts, $args ) ) {
            UserOptions::showUsageAndExit();
        } else {
            $this->mReady = $this->initializeOpts( $opts, $args );
        }
    }

    private function checkOpts( $opts, $args ) {
        // The three possible ways to run the script:
        $list = isset( $opts['list'] );
        $usage = isset( $opts['usage'] ) && ( count( $args ) <= 1 );
        $change = isset( $opts['old'] ) && isset( $opts['new'] ) && ( count( $args ) <= 1 );

        // We want only one of them
        $isValid = ( ( $list + $usage + $change ) == 1 );

        return $isValid;
    }

    private function initializeOpts( $opts, $args ) {

        $this->mQuick = isset( $opts['nowarn'] );
        $this->mQuiet = isset( $opts['quiet'] );
        $this->mDry = isset( $opts['dry'] );

        // Set object properties, specially 'mMode' used by run()
        if ( isset( $opts['list'] ) ) {
            $this->mMode = 'LISTER';
        } elseif ( isset( $opts['usage'] ) ) {
            $this->mMode = 'USAGER';
            $this->mAnOption = isset( $args[0] ) ? $args[0] : false;
        } elseif ( isset( $opts['old'] ) && isset( $opts['new'] ) ) {
            $this->mMode = 'CHANGER';
            $this->mOldValue = $opts['old'];
            $this->mNewValue = $opts['new'];
            $this->mAnOption = $args[0];
        } else {
            die( "There is a bug in the software, this should never happen\n" );
        }

        return true;
    }

    // Dumb stuff to run a mode.
    public function run() {
        if ( !$this->mReady ) {
            return false;
        }

        $this->{ $this->mMode } ();
        return true;
    }

    #
    # Modes.
    #

    private function LISTER() {
        $def = User::getDefaultOptions();
        ksort( $def );
        $maxOpt = 0;
        foreach ( $def as $opt => $value ) {
            $maxOpt = max( $maxOpt, strlen( $opt ) );
        }
        foreach ( $def as $opt => $value ) {
            printf( "%-{$maxOpt}s: %s\n", $opt, $value );
        }
    }

    private function USAGER() {
        $ret = array();
        $defaultOptions = User::getDefaultOptions();

        // We list user by user_id from one of the slave database
        $dbr = wfGetDB( DB_SLAVE );
        $result = $dbr->select( 'user',
            array( 'user_id' ),
            array(),
            __METHOD__
            );

        foreach ( $result as $id ) {

            $user = User::newFromId( $id->user_id );

            // Get the options and update stats
            if ( $this->mAnOption ) {

                if ( !array_key_exists( $this->mAnOption, $defaultOptions ) ) {
                    print "Invalid user option. Use --list to see valid choices\n";
                    exit;
                }

                $userValue = $user->getOption( $this->mAnOption );
                if ( $userValue <> $defaultOptions[$this->mAnOption] ) {
                    @$ret[$this->mAnOption][$userValue]++;
                }

            } else {

                foreach ( $defaultOptions as $name => $defaultValue ) {
                    $userValue = $user->getOption( $name );
                    if ( $userValue <> $defaultValue ) {
                        @$ret[$name][$userValue]++;
                    }
                }
            }
        }

        foreach ( $ret as $optionName => $usageStats ) {
            print "Usage for <$optionName> (default: '{$defaultOptions[$optionName]}'):\n";
            foreach ( $usageStats as $value => $count ) {
                print " $count user(s): '$value'\n";
            }
            print "\n";
        }
    }

    private function CHANGER() {
        $this->warn();

        // We list user by user_id from one of the slave database
        $dbr = wfGetDB( DB_SLAVE );
        $result = $dbr->select( 'user',
            array( 'user_id' ),
            array(),
            __METHOD__
            );

        foreach ( $result as $id ) {

            $user = User::newFromId( $id->user_id );

            $curValue = $user->getOption( $this->mAnOption );
            $username = $user->getName();

            if ( $curValue == $this->mOldValue ) {

                if ( !$this->mQuiet ) {
                    print "Setting {$this->mAnOption} for $username from '{$this->mOldValue}' to '{$this->mNewValue}'): ";
                }

                // Change value
                $user->setOption( $this->mAnOption, $this->mNewValue );

                // Will not save the settings if run with --dry
                if ( !$this->mDry ) {
                    $user->saveSettings();
                }
                if ( !$this->mQuiet ) {
                    print " OK\n";
                }

            } elseif ( !$this->mQuiet ) {
                print "Not changing '$username' using <{$this->mAnOption}> = '$curValue'\n";
            }
        }
    }

    public static function getDefaultOptionsNames() {
        $def = User::getDefaultOptions();
        $ret = array();
        foreach ( $def as $optname => $defaultValue ) {
            array_push( $ret, $optname );
        }
        return $ret;
    }

    #
    # Helper methods
    #

    public static function showUsageAndExit() {
print <<<USAGE

This script pass through all users and change one of their options.
The new option is NOT validated.

Usage:
    php userOptions.php --list
    php userOptions.php [user option] --usage
    php userOptions.php [options] <user option> --old <old value> --new <new value>

Switchs:
    --list : list available user options and their default value

    --usage : report all options statistics or just one if you specify it.

    --old <old value> : the value to look for
    --new <new value> : new value to update users with

Options:
    --nowarn: hides the 5 seconds warning
    --quiet : do not print what is happening
    --dry   : do not save user settings back to database

USAGE;
    exit( 0 );
    }

    public function warn() {

        if ( $this->mQuick ) {
            return true;
        }

print <<<WARN
The script is about to change the skin for ALL USERS in the database.
Users with option <$this->mAnOption> = '$this->mOldValue' will be made to use '$this->mNewValue'.

Abort with control-c in the next five seconds....
WARN;
        wfCountDown( 5 );
        return true;
    }

}