SpecialDeletedContributions.php

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<?php
class DeletedContribsPager extends IndexPager {
        public $mDefaultDirection = true;
        var $messages, $target;
        var $namespace = '', $mDb;

        function __construct( IContextSource $context, $target, $namespace = false ) {
                parent::__construct( $context );
                $msgs = array( 'deletionlog', 'undeleteviewlink', 'diff' );
                foreach( $msgs as $msg ) {
                        $this->messages[$msg] = $this->msg( $msg )->escaped();
                }
                $this->target = $target;
                $this->namespace = $namespace;
                $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
        }

        function getDefaultQuery() {
                $query = parent::getDefaultQuery();
                $query['target'] = $this->target;
                return $query;
        }

        function getQueryInfo() {
                list( $index, $userCond ) = $this->getUserCond();
                $conds = array_merge( $userCond, $this->getNamespaceCond() );
                $user = $this->getUser();
                // Paranoia: avoid brute force searches (bug 17792)
                if( !$user->isAllowed( 'deletedhistory' ) ) {
                        $conds[] = $this->mDb->bitAnd('ar_deleted',Revision::DELETED_USER) . ' = 0';
                } elseif( !$user->isAllowed( 'suppressrevision' ) ) {
                        $conds[] = $this->mDb->bitAnd('ar_deleted',Revision::SUPPRESSED_USER) .
                                ' != ' . Revision::SUPPRESSED_USER;
                }
                return array(
                        'tables' => array( 'archive' ),
                        'fields' => array(
                                'ar_rev_id', 'ar_namespace', 'ar_title', 'ar_timestamp', 'ar_comment', 'ar_minor_edit',
                                'ar_user', 'ar_user_text', 'ar_deleted'
                        ),
                        'conds' => $conds,
                        'options' => array( 'USE INDEX' => $index )
                );
        }

        function getUserCond() {
                $condition = array();

                $condition['ar_user_text'] = $this->target;
                $index = 'usertext_timestamp';

                return array( $index, $condition );
        }

        function getIndexField() {
                return 'ar_timestamp';
        }

        function getStartBody() {
                return "<ul>\n";
        }

        function getEndBody() {
                return "</ul>\n";
        }

        function getNavigationBar() {
                if ( isset( $this->mNavigationBar ) ) {
                        return $this->mNavigationBar;
                }
                $lang = $this->getLanguage();
                $fmtLimit = $lang->formatNum( $this->mLimit );
                $linkTexts = array(
                        'prev' => $this->msg( 'pager-newer-n', $fmtLimit )->escaped(),
                        'next' => $this->msg( 'pager-older-n', $fmtLimit )->escaped(),
                        'first' => $this->msg( 'histlast' )->escaped(),
                        'last' => $this->msg( 'histfirst' )->escaped()
                );

                $pagingLinks = $this->getPagingLinks( $linkTexts );
                $limitLinks = $this->getLimitLinks();
                $limits = $lang->pipeList( $limitLinks );

                $this->mNavigationBar = "(" . $lang->pipeList( array( $pagingLinks['first'], $pagingLinks['last'] ) ) . ") " .
                        $this->msg( 'viewprevnext' )->rawParams( $pagingLinks['prev'], $pagingLinks['next'], $limits )->escaped();
                return $this->mNavigationBar;
        }

        function getNamespaceCond() {
                if ( $this->namespace !== '' ) {
                        return array( 'ar_namespace' => (int)$this->namespace );
                } else {
                        return array();
                }
        }

        function formatRow( $row ) {
                wfProfileIn( __METHOD__ );

                $rev = new Revision( array(
                                'id'         => $row->ar_rev_id,
                                'comment'    => $row->ar_comment,
                                'user'       => $row->ar_user,
                                'user_text'  => $row->ar_user_text,
                                'timestamp'  => $row->ar_timestamp,
                                'minor_edit' => $row->ar_minor_edit,
                                'deleted'    => $row->ar_deleted,
                                ) );

                $page = Title::makeTitle( $row->ar_namespace, $row->ar_title );

                $undelete = SpecialPage::getTitleFor( 'Undelete' );

                $logs = SpecialPage::getTitleFor( 'Log' );
                $dellog = Linker::linkKnown(
                        $logs,
                        $this->messages['deletionlog'],
                        array(),
                        array(
                                'type' => 'delete',
                                'page' => $page->getPrefixedText()
                        )
                );

                $reviewlink = Linker::linkKnown(
                        SpecialPage::getTitleFor( 'Undelete', $page->getPrefixedDBkey() ),
                        $this->messages['undeleteviewlink']
                );

                $user = $this->getUser();

                if( $user->isAllowed('deletedtext') ) {
                        $last = Linker::linkKnown(
                                $undelete,
                                $this->messages['diff'],
                                array(),
                                array(
                                        'target' => $page->getPrefixedText(),
                                        'timestamp' => $rev->getTimestamp(),
                                        'diff' => 'prev'
                                )
                        );
                } else {
                        $last = $this->messages['diff'];
                }

                $comment = Linker::revComment( $rev );
                $date = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $rev->getTimestamp(), $user ) );

                if( !$user->isAllowed( 'undelete' ) || !$rev->userCan( Revision::DELETED_TEXT, $user ) ) {
                        $link = $date; // unusable link
                } else {
                        $link = Linker::linkKnown(
                                $undelete,
                                $date,
                                array(),
                                array(
                                        'target' => $page->getPrefixedText(),
                                        'timestamp' => $rev->getTimestamp()
                                )
                        );
                }
                // Style deleted items
                if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
                        $link = '<span class="history-deleted">' . $link . '</span>';
                }

                $pagelink = Linker::link( $page );

                if( $rev->isMinor() ) {
                        $mflag = ChangesList::flag( 'minor' );
                } else {
                        $mflag = '';
                }

                // Revision delete link
                $del = Linker::getRevDeleteLink( $user, $rev, $page );
                if ( $del ) $del .= ' ';

                $tools = Html::rawElement(
                        'span',
                        array( 'class' => 'mw-deletedcontribs-tools' ),
                        $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->pipeList(
                                array( $last, $dellog, $reviewlink ) ) )->escaped()
                );

                $ret = "{$del}{$link} {$tools} . . {$mflag} {$pagelink} {$comment}";

                # Denote if username is redacted for this edit
                if( $rev->isDeleted( Revision::DELETED_USER ) ) {
                        $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
                }

                $ret = Html::rawElement( 'li', array(), $ret ) . "\n";

                wfProfileOut( __METHOD__ );
                return $ret;
        }

        public function getDatabase() {
                return $this->mDb;
        }
}

class DeletedContributionsPage extends SpecialPage {
        function __construct() {
                parent::__construct( 'DeletedContributions', 'deletedhistory',
                /*listed*/ true, /*function*/ false, /*file*/ false );
        }

        function execute( $par ) {
                global $wgQueryPageDefaultLimit;
                $this->setHeaders();

                $user = $this->getUser();

                if ( !$this->userCanExecute( $user ) ) {
                        $this->displayRestrictionError();
                        return;
                }

                $request = $this->getRequest();
                $out = $this->getOutput();
                $out->setPageTitle( $this->msg( 'deletedcontributions-title' ) );

                $options = array();

                if ( $par !== null ) {
                        $target = $par;
                } else {
                        $target = $request->getVal( 'target' );
                }

                if ( !strlen( $target ) ) {
                        $out->addHTML( $this->getForm( '' ) );
                        return;
                }

                $options['limit'] = $request->getInt( 'limit', $wgQueryPageDefaultLimit );
                $options['target'] = $target;

                $userObj = User::newFromName( $target, false );
                if ( !$userObj ) {
                        $out->addHTML( $this->getForm( '' ) );
                        return;
                }

                $target = $userObj->getName();
                $out->addSubtitle( $this->getSubTitle( $userObj ) );

                if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
                        $options['namespace'] = intval( $ns );
                } else {
                        $options['namespace'] = '';
                }

                $out->addHTML( $this->getForm( $options ) );

                $pager = new DeletedContribsPager( $this->getContext(), $target, $options['namespace'] );
                if ( !$pager->getNumRows() ) {
                        $out->addWikiMsg( 'nocontribs' );
                        return;
                }

                # Show a message about slave lag, if applicable
                $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
                if( $lag > 0 )
                        $out->showLagWarning( $lag );

                $out->addHTML(
                        '<p>' . $pager->getNavigationBar() . '</p>' .
                        $pager->getBody() .
                        '<p>' . $pager->getNavigationBar() . '</p>' );

                # If there were contributions, and it was a valid user or IP, show
                # the appropriate "footer" message - WHOIS tools, etc.
                if( $target != 'newbies' ) {
                        $message = IP::isIPAddress( $target )
                                ? 'sp-contributions-footer-anon'
                                : 'sp-contributions-footer';

                        if( !$this->msg( $message )->isDisabled() ) {
                                $out->wrapWikiMsg( "<div class='mw-contributions-footer'>\n$1\n</div>", array( $message, $target ) );
                        }
                }
        }

        function getSubTitle( $userObj ) {
                if ( $userObj->isAnon() ) {
                        $user = htmlspecialchars( $userObj->getName() );
                } else {
                        $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
                }
                $nt = $userObj->getUserPage();
                $id = $userObj->getID();
                $talk = $nt->getTalkPage();
                if( $talk ) {
                        # Talk page link
                        $tools[] = Linker::link( $talk, $this->msg( 'sp-contributions-talk' )->escaped() );
                        if( ( $id !== null ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
                                if( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
                                        if ( $userObj->isBlocked() ) {
                                                $tools[] = Linker::linkKnown( # Change block link
                                                        SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
                                                        $this->msg( 'change-blocklink' )->escaped()
                                                );
                                                $tools[] = Linker::linkKnown( # Unblock link
                                                        SpecialPage::getTitleFor( 'BlockList' ),
                                                        $this->msg( 'unblocklink' )->escaped(),
                                                        array(),
                                                        array(
                                                                'action' => 'unblock',
                                                                'ip' => $nt->getDBkey()
                                                        )
                                                );
                                        }
                                        else { # User is not blocked
                                                $tools[] = Linker::linkKnown( # Block link
                                                        SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
                                                        $this->msg( 'blocklink' )->escaped()
                                                );
                                        }
                                }
                                # Block log link
                                $tools[] = Linker::linkKnown(
                                        SpecialPage::getTitleFor( 'Log' ),
                                        $this->msg( 'sp-contributions-blocklog' )->escaped(),
                                        array(),
                                        array(
                                                'type' => 'block',
                                                'page' => $nt->getPrefixedText()
                                        )
                                );
                        }
                        # Other logs link
                        $tools[] = Linker::linkKnown(
                                SpecialPage::getTitleFor( 'Log' ),
                                $this->msg( 'sp-contributions-logs' )->escaped(),
                                array(),
                                array( 'user' => $nt->getText() )
                        );
                        # Link to contributions
                        $tools[] = Linker::linkKnown(
                                SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
                                $this->msg( 'sp-deletedcontributions-contribs' )->escaped()
                        );

                        # Add a link to change user rights for privileged users
                        $userrightsPage = new UserrightsPage();
                        $userrightsPage->setContext( $this->getContext() );
                        if( $id !== null && $userrightsPage->userCanChangeRights( User::newFromId( $id ) ) ) {
                                $tools[] = Linker::linkKnown(
                                        SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
                                        $this->msg( 'sp-contributions-userrights' )->escaped()
                                );
                        }

                        wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );

                        $links = $this->getLanguage()->pipeList( $tools );

                        // Show a note if the user is blocked and display the last block log entry.
                        if ( $userObj->isBlocked() ) {
                                $out = $this->getOutput(); // LogEventsList::showLogExtract() wants the first parameter by ref
                                LogEventsList::showLogExtract(
                                        $out,
                                        'block',
                                        $nt,
                                        '',
                                        array(
                                                'lim' => 1,
                                                'showIfEmpty' => false,
                                                'msgKey' => array(
                                                        'sp-contributions-blocked-notice',
                                                        $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
                                                ),
                                                'offset' => '' # don't use $this->getRequest() parameter offset
                                        )
                                );
                        }
                }

                // Old message 'contribsub' had one parameter, but that doesn't work for
                // languages that want to put the "for" bit right after $user but before
                // $links.  If 'contribsub' is around, use it for reverse compatibility,
                // otherwise use 'contribsub2'.
                $oldMsg = $this->msg( 'contribsub' );
                if ( $oldMsg->exists() ) {
                        return $oldMsg->rawParams( "$user ($links)" );
                } else {
                        return $this->msg( 'contribsub2' )->rawParams( $user, $links );
                }
        }

        function getForm( $options ) {
                global $wgScript;

                $options['title'] = $this->getTitle()->getPrefixedText();
                if ( !isset( $options['target'] ) ) {
                        $options['target'] = '';
                } else {
                        $options['target'] = str_replace( '_' , ' ' , $options['target'] );
                }

                if ( !isset( $options['namespace'] ) ) {
                        $options['namespace'] = '';
                }

                if ( !isset( $options['contribs'] ) ) {
                        $options['contribs'] = 'user';
                }

                if ( $options['contribs'] == 'newbie' ) {
                        $options['target'] = '';
                }

                $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );

                foreach ( $options as $name => $value ) {
                        if ( in_array( $name, array( 'namespace', 'target', 'contribs' ) ) ) {
                                continue;
                        }
                        $f .= "\t" . Html::hidden( $name, $value ) . "\n";
                }

                $f .=  Xml::openElement( 'fieldset' ) .
                        Xml::element( 'legend', array(), $this->msg( 'sp-contributions-search' )->text() ) .
                        Xml::tags( 'label', array( 'for' => 'target' ), $this->msg( 'sp-contributions-username' )->parse() ) . ' ' .
                        Html::input( 'target', $options['target'], 'text', array(
                                'size' => '20',
                                'required' => ''
                        ) + ( $options['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
                        Xml::label( $this->msg( 'namespace' )->text(), 'namespace' ) . ' ' .
                        Xml::namespaceSelector( $options['namespace'], '' ) . ' ' .
                        Xml::submitButton( $this->msg( 'sp-contributions-submit' )->text() ) .
                        Xml::closeElement( 'fieldset' ) .
                        Xml::closeElement( 'form' );
                return $f;
        }
}