ApiQueryUserInfo.php

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<?php
class ApiQueryUserInfo extends ApiQueryBase {

    const WL_UNREAD_LIMIT = 1000;

    private $prop = array();

    public function __construct( ApiQuery $query, $moduleName ) {
        parent::__construct( $query, $moduleName, 'ui' );
    }

    public function execute() {
        $params = $this->extractRequestParams();
        $result = $this->getResult();

        if ( !is_null( $params['prop'] ) ) {
            $this->prop = array_flip( $params['prop'] );
        }

        $r = $this->getCurrentUserInfo();
        $result->addValue( 'query', $this->getModuleName(), $r );
    }

    protected function getCurrentUserInfo() {
        $user = $this->getUser();
        $result = $this->getResult();
        $vals = array();
        $vals['id'] = intval( $user->getId() );
        $vals['name'] = $user->getName();

        if ( $user->isAnon() ) {
            $vals['anon'] = '';
        }

        if ( isset( $this->prop['blockinfo'] ) ) {
            if ( $user->isBlocked() ) {
                $block = $user->getBlock();
                $vals['blockid'] = $block->getId();
                $vals['blockedby'] = $block->getByName();
                $vals['blockedbyid'] = $block->getBy();
                $vals['blockreason'] = $user->blockedFor();
                $vals['blockedtimestamp'] = wfTimestamp( TS_ISO_8601, $block->mTimestamp );
                $vals['blockexpiry'] = $block->getExpiry() === 'infinity'
                    ? 'infinite'
                    : wfTimestamp( TS_ISO_8601, $block->getExpiry() );
            }
        }

        if ( isset( $this->prop['hasmsg'] ) && $user->getNewtalk() ) {
            $vals['messages'] = '';
        }

        if ( isset( $this->prop['groups'] ) ) {
            $vals['groups'] = $user->getEffectiveGroups();
            $result->setIndexedTagName( $vals['groups'], 'g' ); // even if empty
        }

        if ( isset( $this->prop['implicitgroups'] ) ) {
            $vals['implicitgroups'] = $user->getAutomaticGroups();
            $result->setIndexedTagName( $vals['implicitgroups'], 'g' ); // even if empty
        }

        if ( isset( $this->prop['rights'] ) ) {
            // User::getRights() may return duplicate values, strip them
            $vals['rights'] = array_values( array_unique( $user->getRights() ) );
            $result->setIndexedTagName( $vals['rights'], 'r' ); // even if empty
        }

        if ( isset( $this->prop['changeablegroups'] ) ) {
            $vals['changeablegroups'] = $user->changeableGroups();
            $result->setIndexedTagName( $vals['changeablegroups']['add'], 'g' );
            $result->setIndexedTagName( $vals['changeablegroups']['remove'], 'g' );
            $result->setIndexedTagName( $vals['changeablegroups']['add-self'], 'g' );
            $result->setIndexedTagName( $vals['changeablegroups']['remove-self'], 'g' );
        }

        if ( isset( $this->prop['options'] ) ) {
            $vals['options'] = $user->getOptions();
        }

        if ( isset( $this->prop['preferencestoken'] ) ) {
            $p = $this->getModulePrefix();
            $this->setWarning(
                "{$p}prop=preferencestoken has been deprecated. Please use action=query&meta=tokens instead."
            );
        }
        if ( isset( $this->prop['preferencestoken'] ) &&
            is_null( $this->getMain()->getRequest()->getVal( 'callback' ) ) &&
            $user->isAllowed( 'editmyoptions' )
        ) {
            $vals['preferencestoken'] = $user->getEditToken( '', $this->getMain()->getRequest() );
        }

        if ( isset( $this->prop['editcount'] ) ) {
            // use intval to prevent null if a non-logged-in user calls
            // api.php?format=jsonfm&action=query&meta=userinfo&uiprop=editcount
            $vals['editcount'] = intval( $user->getEditCount() );
        }

        if ( isset( $this->prop['ratelimits'] ) ) {
            $vals['ratelimits'] = $this->getRateLimits();
        }

        if ( isset( $this->prop['realname'] ) && !in_array( 'realname', $this->getConfig()->get( 'HiddenPrefs' ) ) ) {
            $vals['realname'] = $user->getRealName();
        }

        if ( $user->isAllowed( 'viewmyprivateinfo' ) ) {
            if ( isset( $this->prop['email'] ) ) {
                $vals['email'] = $user->getEmail();
                $auth = $user->getEmailAuthenticationTimestamp();
                if ( !is_null( $auth ) ) {
                    $vals['emailauthenticated'] = wfTimestamp( TS_ISO_8601, $auth );
                }
            }
        }

        if ( isset( $this->prop['registrationdate'] ) ) {
            $regDate = $user->getRegistration();
            if ( $regDate !== false ) {
                $vals['registrationdate'] = wfTimestamp( TS_ISO_8601, $regDate );
            }
        }

        if ( isset( $this->prop['acceptlang'] ) ) {
            $langs = $this->getRequest()->getAcceptLang();
            $acceptLang = array();
            foreach ( $langs as $lang => $val ) {
                $r = array( 'q' => $val );
                ApiResult::setContent( $r, $lang );
                $acceptLang[] = $r;
            }
            $result->setIndexedTagName( $acceptLang, 'lang' );
            $vals['acceptlang'] = $acceptLang;
        }

        if ( isset( $this->prop['unreadcount'] ) ) {
            $dbr = $this->getQuery()->getNamedDB( 'watchlist', DB_SLAVE, 'watchlist' );

            $sql = $dbr->selectSQLText(
                'watchlist',
                array( 'dummy' => 1 ),
                array(
                    'wl_user' => $user->getId(),
                    'wl_notificationtimestamp IS NOT NULL',
                ),
                __METHOD__,
                array( 'LIMIT' => self::WL_UNREAD_LIMIT )
            );
            $count = $dbr->selectField( array( 'c' => "($sql)" ), 'COUNT(*)' );

            if ( $count >= self::WL_UNREAD_LIMIT ) {
                $vals['unreadcount'] = self::WL_UNREAD_LIMIT . '+';
            } else {
                $vals['unreadcount'] = (int)$count;
            }
        }

        return $vals;
    }

    protected function getRateLimits() {
        $user = $this->getUser();
        if ( !$user->isPingLimitable() ) {
            return array(); // No limits
        }

        // Find out which categories we belong to
        $categories = array();
        if ( $user->isAnon() ) {
            $categories[] = 'anon';
        } else {
            $categories[] = 'user';
        }
        if ( $user->isNewbie() ) {
            $categories[] = 'ip';
            $categories[] = 'subnet';
            if ( !$user->isAnon() ) {
                $categories[] = 'newbie';
            }
        }
        $categories = array_merge( $categories, $user->getGroups() );

        // Now get the actual limits
        $retval = array();
        foreach ( $this->getConfig()->get( 'RateLimits' ) as $action => $limits ) {
            foreach ( $categories as $cat ) {
                if ( isset( $limits[$cat] ) && !is_null( $limits[$cat] ) ) {
                    $retval[$action][$cat]['hits'] = intval( $limits[$cat][0] );
                    $retval[$action][$cat]['seconds'] = intval( $limits[$cat][1] );
                }
            }
        }

        return $retval;
    }

    public function getAllowedParams() {
        return array(
            'prop' => array(
                ApiBase::PARAM_DFLT => null,
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_TYPE => array(
                    'blockinfo',
                    'hasmsg',
                    'groups',
                    'implicitgroups',
                    'rights',
                    'changeablegroups',
                    'options',
                    'preferencestoken',
                    'editcount',
                    'ratelimits',
                    'email',
                    'realname',
                    'acceptlang',
                    'registrationdate',
                    'unreadcount',
                )
            )
        );
    }

    public function getParamDescription() {
        return array(
            'prop' => array(
                'What pieces of information to include',
                '  blockinfo        - Tags if the current user is blocked, by whom, and for what reason',
                '  hasmsg           - Adds a tag "message" if the current user has pending messages',
                '  groups           - Lists all the groups the current user belongs to',
                '  implicitgroups   - Lists all the groups the current user is automatically a member of',
                '  rights           - Lists all the rights the current user has',
                '  changeablegroups - Lists the groups the current user can add to and remove from',
                '  options          - Lists all preferences the current user has set',
                '  preferencestoken - DEPRECATED! Get a token to change current user\'s preferences',
                '  editcount        - Adds the current user\'s edit count',
                '  ratelimits       - Lists all rate limits applying to the current user',
                '  realname         - Adds the user\'s real name',
                '  email            - Adds the user\'s email address and email authentication date',
                '  acceptlang       - Echoes the Accept-Language header sent by ' .
                    'the client in a structured format',
                '  registrationdate - Adds the user\'s registration date',
                '  unreadcount      - Adds the count of unread pages on the user\'s watchlist ' .
                    '(maximum ' . ( self::WL_UNREAD_LIMIT - 1 ) . '; returns "' .
                    self::WL_UNREAD_LIMIT . '+" if more)',
            )
        );
    }

    public function getDescription() {
        return 'Get information about the current user.';
    }

    public function getExamples() {
        return array(
            'api.php?action=query&meta=userinfo',
            'api.php?action=query&meta=userinfo&uiprop=blockinfo|groups|rights|hasmsg',
        );
    }

    public function getHelpUrls() {
        return 'https://www.mediawiki.org/wiki/API:Meta#userinfo_.2F_ui';
    }
}