SpecialDeletedContributions.php

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<?php
class DeletedContribsPager extends IndexPager {
    public $mDefaultDirection = IndexPager::DIR_DESCENDING;
    public $messages;
    public $target;
    public $namespace = '';
    public $mDb;

    protected $mNavigationBar;

    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->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
            $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;
        }

        $linkTexts = array(
            'prev' => $this->msg( 'pager-newer-n' )->numParams( $this->mLimit )->escaped(),
            'next' => $this->msg( 'pager-older-n' )->numParams( $this->mLimit )->escaped(),
            'first' => $this->msg( 'histlast' )->escaped(),
            'last' => $this->msg( 'histfirst' )->escaped()
        );

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

        $firstLast = $lang->pipeList( array( $pagingLinks['first'], $pagingLinks['last'] ) );
        $firstLast = $this->msg( 'parentheses' )->rawParams( $firstLast )->escaped();
        $prevNext = $this->msg( 'viewprevnext' )
            ->rawParams(
                $pagingLinks['prev'],
                $pagingLinks['next'],
                $limits
            )->escaped();
        $separator = $this->msg( 'word-separator' )->escaped();
        $this->mNavigationBar = $firstLast . $separator . $prevNext;

        return $this->mNavigationBar;
    }

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

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

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

        $rev = new Revision( array(
            'title' => $page,
            '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,
        ) );

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

        if ( !$user->isAllowed( 'undelete' ) || !$rev->userCan( Revision::DELETED_TEXT, $user ) ) {
            $link = $date; // unusable link
        } else {
            $link = Linker::linkKnown(
                $undelete,
                $date,
                array( 'class' => 'mw-changeslist-date' ),
                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,
            null,
            array( 'class' => 'mw-changeslist-title' )
        );

        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()
        );

        $separator = '<span class="mw-changeslist-separator">. .</span>';
        $ret = "{$del}{$link} {$tools} {$separator} {$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 ) {
        $this->setHeaders();
        $this->outputHeader();

        $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', $this->getConfig()->get( 'QueryPageDefaultLimit' ) );
        $options['target'] = $target;

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

            return;
        }
        $this->getSkin()->setRelevantUser( $userObj );

        $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() ) );
        }
        $links = '';
        $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() ) ) ) {
                # Block / Change block / Unblock links
                if ( $this->getUser()->isAllowed( 'block' ) ) {
                    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()
                    )
                );
                # Suppression log link (bug 59120)
                if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) {
                    $tools[] = Linker::linkKnown(
                        SpecialPage::getTitleFor( 'Log', 'suppress' ),
                        $this->msg( 'sp-contributions-suppresslog' )->escaped(),
                        array(),
                        array( 'offender' => $userObj->getName() )
                    );
                }
            }

            # Uploads
            $tools[] = Linker::linkKnown(
                SpecialPage::getTitleFor( 'Listfiles', $userObj->getName() ),
                $this->msg( 'sp-contributions-uploads' )->escaped()
            );

            # 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 ( $userrightsPage->userCanChangeRights( $userObj ) ) {
                $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.
            $block = Block::newFromTarget( $userObj, $userObj );
            if ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
                if ( $block->getType() == Block::TYPE_RANGE ) {
                    $nt = MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget();
                }

                // LogEventsList::showLogExtract() wants the first parameter by ref
                $out = $this->getOutput();
                LogEventsList::showLogExtract(
                    $out,
                    'block',
                    $nt,
                    '',
                    array(
                        'lim' => 1,
                        'showIfEmpty' => false,
                        'msgKey' => array(
                            'sp-contributions-blocked-notice',
                            $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
                        ),
                        'offset' => '' # don't use $this->getRequest() parameter offset
                    )
                );
            }
        }

        return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
    }

    function getForm( $options ) {
        $options['title'] = $this->getPageTitle()->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' => wfScript() ) );

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

        return $f;
    }

    protected function getGroupName() {
        return 'users';
    }
}