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<?php
/**
* Contain classes to list log entries
*
* Copyright © 2004 Brion Vibber <brion@pobox.com>, 2008 Aaron Schulz
* http://www.mediawiki.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
class LogEventsList extends ContextSource {
const NO_ACTION_LINK = 1;
const NO_EXTRA_USER_LINKS = 2;
const USE_REVDEL_CHECKBOXES = 4;
public $flags;
/**
* @var Array
*/
protected $mDefaultQuery;
/**
* Constructor.
* The first two parameters used to be $skin and $out, but now only a context
* is needed, that's why there's a second unused parameter.
*
* @param $context IContextSource Context to use; formerly it was Skin object.
* @param $unused void Unused; used to be an OutputPage object.
* @param int $flags flags; can be a combinaison of self::NO_ACTION_LINK,
* self::NO_EXTRA_USER_LINKS or self::USE_REVDEL_CHECKBOXES.
*/
public function __construct( $context, $unused = null, $flags = 0 ) {
if ( $context instanceof IContextSource ) {
$this->setContext( $context );
} else {
// Old parameters, $context should be a Skin object
$this->setContext( $context->getContext() );
}
$this->flags = $flags;
}
/**
* Deprecated alias for getTitle(); do not use.
*
* @deprecated in 1.20; use getTitle() instead.
* @return Title object
*/
public function getDisplayTitle() {
return $this->getTitle();
}
/**
* Set page title and show header for this log type
* @param $type Array
* @deprecated in 1.19
*/
public function showHeader( $type ) {
wfDeprecated( __METHOD__, '1.19' );
// If only one log type is used, then show a special message...
$headerType = (count( $type ) == 1) ? $type[0] : '';
$out = $this->getOutput();
if( LogPage::isLogType( $headerType ) ) {
$page = new LogPage( $headerType );
$out->setPageTitle( $page->getName()->text() );
$out->addHTML( $page->getDescription()->parseAsBlock() );
} else {
$out->addHTML( $this->msg( 'alllogstext' )->parse() );
}
}
/**
* Show options for the log list
*
* @param string $types or Array
* @param $user String
* @param $page String
* @param $pattern String
* @param $year Integer: year
* @param $month Integer: month
* @param $filter: array
* @param $tagFilter: array?
*/
public function showOptions( $types=array(), $user = '', $page = '', $pattern = '', $year = '',
$month = '', $filter = null, $tagFilter = '' ) {
global $wgScript, $wgMiserMode;
$title = SpecialPage::getTitleFor( 'Log' );
// For B/C, we take strings, but make sure they are converted...
$types = ($types === '') ? array() : (array)$types;
$tagSelector = ChangeTags::buildTagFilterSelector( $tagFilter );
$html = Html::hidden( 'title', $title->getPrefixedDBkey() );
// Basic selectors
$html .= $this->getTypeMenu( $types ) . "\n";
$html .= $this->getUserInput( $user ) . "\n";
$html .= $this->getTitleInput( $page ) . "\n";
$html .= $this->getExtraInputs( $types ) . "\n";
// Title pattern, if allowed
if ( !$wgMiserMode ) {
$html .= $this->getTitlePattern( $pattern ) . "\n";
}
// date menu
$html .= Xml::tags( 'p', null, Xml::dateMenu( $year, $month ) );
// Tag filter
if ( $tagSelector ) {
$html .= Xml::tags( 'p', null, implode( ' ', $tagSelector ) );
}
// Filter links
if ( $filter ) {
$html .= Xml::tags( 'p', null, $this->getFilterLinks( $filter ) );
}
// Submit button
$html .= Xml::submitButton( $this->msg( 'allpagessubmit' )->text() );
// Fieldset
$html = Xml::fieldset( $this->msg( 'log' )->text(), $html );
// Form wrapping
$html = Xml::tags( 'form', array( 'action' => $wgScript, 'method' => 'get' ), $html );
$this->getOutput()->addHTML( $html );
}
/**
* @param $filter Array
* @return String: Formatted HTML
*/
private function getFilterLinks( $filter ) {
// show/hide links
$messages = array( $this->msg( 'show' )->escaped(), $this->msg( 'hide' )->escaped() );
// Option value -> message mapping
$links = array();
$hiddens = ''; // keep track for "go" button
foreach( $filter as $type => $val ) {
// Should the below assignment be outside the foreach?
// Then it would have to be copied. Not certain what is more expensive.
$query = $this->getDefaultQuery();
$queryKey = "hide_{$type}_log";
$hideVal = 1 - intval( $val );
$query[$queryKey] = $hideVal;
$link = Linker::linkKnown(
$this->getTitle(),
$messages[$hideVal],
array(),
$query
);
$links[$type] = $this->msg( "log-show-hide-{$type}" )->rawParams( $link )->escaped();
$hiddens .= Html::hidden( "hide_{$type}_log", $val ) . "\n";
}
// Build links
return '<small>' . $this->getLanguage()->pipeList( $links ) . '</small>' . $hiddens;
}
private function getDefaultQuery() {
if ( !isset( $this->mDefaultQuery ) ) {
$this->mDefaultQuery = $this->getRequest()->getQueryValues();
unset( $this->mDefaultQuery['title'] );
unset( $this->mDefaultQuery['dir'] );
unset( $this->mDefaultQuery['offset'] );
unset( $this->mDefaultQuery['limit'] );
unset( $this->mDefaultQuery['order'] );
unset( $this->mDefaultQuery['month'] );
unset( $this->mDefaultQuery['year'] );
}
return $this->mDefaultQuery;
}
/**
* @param $queryTypes Array
* @return String: Formatted HTML
*/
private function getTypeMenu( $queryTypes ) {
$queryType = count( $queryTypes ) == 1 ? $queryTypes[0] : '';
$selector = $this->getTypeSelector();
$selector->setDefault( $queryType );
return $selector->getHtml();
}
/**
* Returns log page selector.
* @return XmlSelect
* @since 1.19
*/
public function getTypeSelector() {
$typesByName = array(); // Temporary array
// First pass to load the log names
foreach( LogPage::validTypes() as $type ) {
$page = new LogPage( $type );
$restriction = $page->getRestriction();
if ( $this->getUser()->isAllowed( $restriction ) ) {
$typesByName[$type] = $page->getName()->text();
}
}
// Second pass to sort by name
asort( $typesByName );
// Always put "All public logs" on top
$public = $typesByName[''];
unset( $typesByName[''] );
$typesByName = array( '' => $public ) + $typesByName;
$select = new XmlSelect( 'type' );
foreach( $typesByName as $type => $name ) {
$select->addOption( $name, $type );
}
return $select;
}
/**
* @param $user String
* @return String: Formatted HTML
*/
private function getUserInput( $user ) {
return '<span style="white-space: nowrap">' .
Xml::inputLabel( $this->msg( 'specialloguserlabel' )->text(), 'user', 'mw-log-user', 15, $user ) .
'</span>';
}
/**
* @param $title String
* @return String: Formatted HTML
*/
private function getTitleInput( $title ) {
return '<span style="white-space: nowrap">' .
Xml::inputLabel( $this->msg( 'speciallogtitlelabel' )->text(), 'page', 'mw-log-page', 20, $title ) .
'</span>';
}
/**
* @param $pattern
* @return string Checkbox
*/
private function getTitlePattern( $pattern ) {
return '<span style="white-space: nowrap">' .
Xml::checkLabel( $this->msg( 'log-title-wildcard' )->text(), 'pattern', 'pattern', $pattern ) .
'</span>';
}
/**
* @param $types
* @return string
*/
private function getExtraInputs( $types ) {
$offender = $this->getRequest()->getVal( 'offender' );
$user = User::newFromName( $offender, false );
if( !$user || ( $user->getId() == 0 && !IP::isIPAddress( $offender ) ) ) {
$offender = ''; // Blank field if invalid
}
if( count( $types ) == 1 && $types[0] == 'suppress' ) {
return Xml::inputLabel( $this->msg( 'revdelete-offender' )->text(), 'offender',
'mw-log-offender', 20, $offender );
}
return '';
}
/**
* @return string
*/
public function beginLogEventsList() {
return "<ul>\n";
}
/**
* @return string
*/
public function endLogEventsList() {
return "</ul>\n";
}
/**
* @param $row Row: a single row from the result set
* @return String: Formatted HTML list item
*/
public function logLine( $row ) {
$entry = DatabaseLogEntry::newFromRow( $row );
$formatter = LogFormatter::newFromEntry( $entry );
$formatter->setContext( $this->getContext() );
$formatter->setShowUserToolLinks( !( $this->flags & self::NO_EXTRA_USER_LINKS ) );
$time = htmlspecialchars( $this->getLanguage()->userTimeAndDate(
$entry->getTimestamp(), $this->getUser() ) );
$action = $formatter->getActionText();
if ( $this->flags & self::NO_ACTION_LINK ) {
$revert = '';
} else {
$revert = $formatter->getActionLinks();
if ( $revert != '' ) {
$revert = '<span class="mw-logevent-actionlink">' . $revert . '</span>';
}
}
$comment = $formatter->getComment();
// Some user can hide log items and have review links
$del = $this->getShowHideLinks( $row );
// Any tags...
list( $tagDisplay, $newClasses ) = ChangeTags::formatSummaryRow( $row->ts_tags, 'logevent' );
$classes = array_merge(
array( 'mw-logline-' . $entry->getType() ),
$newClasses
);
return Html::rawElement( 'li', array( 'class' => $classes ),
"$del $time $action $comment $revert $tagDisplay" ) . "\n";
}
/**
* @param $row Row
* @return string
*/
private function getShowHideLinks( $row ) {
if( ( $this->flags == self::NO_ACTION_LINK ) // we don't want to see the links
|| $row->log_type == 'suppress' ) { // no one can hide items from the suppress log
return '';
}
$del = '';
$user = $this->getUser();
// Don't show useless checkbox to people who cannot hide log entries
if( $user->isAllowed( 'deletedhistory' ) ) {
$canHide = $user->isAllowed( 'deletelogentry' );
if( $row->log_deleted || $canHide ) {
if ( $canHide && $this->flags & self::USE_REVDEL_CHECKBOXES ) { // Show checkboxes instead of links.
if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) { // If event was hidden from sysops
$del = Xml::check( 'deleterevisions', false, array( 'disabled' => 'disabled' ) );
} else {
$del = Xml::check( 'showhiderevisions', false, array( 'name' => 'ids[' . $row->log_id . ']' ) );
}
} else {
if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) { // If event was hidden from sysops
$del = Linker::revDeleteLinkDisabled( $canHide );
} else {
$query = array(
'target' => SpecialPage::getTitleFor( 'Log', $row->log_type )->getPrefixedDBkey(),
'type' => 'logging',
'ids' => $row->log_id,
);
$del = Linker::revDeleteLink( $query, self::isDeleted( $row, LogPage::DELETED_RESTRICTED ), $canHide );
}
}
}
}
return $del;
}
/**
* @param $row Row
* @param $type Mixed: string/array
* @param $action Mixed: string/array
* @param $right string
* @return Boolean
*/
public static function typeAction( $row, $type, $action, $right = '' ) {
$match = is_array( $type ) ?
in_array( $row->log_type, $type ) : $row->log_type == $type;
if( $match ) {
$match = is_array( $action ) ?
in_array( $row->log_action, $action ) : $row->log_action == $action;
if( $match && $right ) {
global $wgUser;
$match = $wgUser->isAllowed( $right );
}
}
return $match;
}
/**
* Determine if the current user is allowed to view a particular
* field of this log row, if it's marked as deleted.
*
* @param $row Row
* @param $field Integer
* @param $user User object to check, or null to use $wgUser
* @return Boolean
*/
public static function userCan( $row, $field, User $user = null ) {
return self::userCanBitfield( $row->log_deleted, $field, $user );
}
/**
* Determine if the current user is allowed to view a particular
* field of this log row, if it's marked as deleted.
*
* @param $bitfield Integer (current field)
* @param $field Integer
* @param $user User object to check, or null to use $wgUser
* @return Boolean
*/
public static function userCanBitfield( $bitfield, $field, User $user = null ) {
if( $bitfield & $field ) {
if ( $bitfield & LogPage::DELETED_RESTRICTED ) {
$permission = 'suppressrevision';
} else {
$permission = 'deletedhistory';
}
wfDebug( "Checking for $permission due to $field match on $bitfield\n" );
if ( $user === null ) {
global $wgUser;
$user = $wgUser;
}
return $user->isAllowed( $permission );
} else {
return true;
}
}
/**
* @param $row Row
* @param $field Integer: one of DELETED_* bitfield constants
* @return Boolean
*/
public static function isDeleted( $row, $field ) {
return ( $row->log_deleted & $field ) == $field;
}
/**
* Show log extract. Either with text and a box (set $msgKey) or without (don't set $msgKey)
*
* @param $out OutputPage|String-by-reference
* @param string|array $types Log types to show
* @param string|Title $page The page title to show log entries for
* @param string $user The user who made the log entries
* @param array $param Associative Array with the following additional options:
* - lim Integer Limit of items to show, default is 50
* - conds Array Extra conditions for the query (e.g. "log_action != 'revision'")
* - showIfEmpty boolean Set to false if you don't want any output in case the loglist is empty
* if set to true (default), "No matching items in log" is displayed if loglist is empty
* - msgKey Array If you want a nice box with a message, set this to the key of the message.
* First element is the message key, additional optional elements are parameters for the key
* that are processed with wfMessage
* - offset Set to overwrite offset parameter in WebRequest
* set to '' to unset offset
* - wrap String Wrap the message in html (usually something like "<div ...>$1</div>").
* - flags Integer display flags (NO_ACTION_LINK,NO_EXTRA_USER_LINKS)
* @return Integer Number of total log items (not limited by $lim)
*/
public static function showLogExtract(
&$out, $types=array(), $page = '', $user = '', $param = array()
) {
$defaultParameters = array(
'lim' => 25,
'conds' => array(),
'showIfEmpty' => true,
'msgKey' => array( '' ),
'wrap' => "$1",
'flags' => 0
);
# The + operator appends elements of remaining keys from the right
# handed array to the left handed, whereas duplicated keys are NOT overwritten.
$param += $defaultParameters;
# Convert $param array to individual variables
$lim = $param['lim'];
$conds = $param['conds'];
$showIfEmpty = $param['showIfEmpty'];
$msgKey = $param['msgKey'];
$wrap = $param['wrap'];
$flags = $param['flags'];
if ( !is_array( $msgKey ) ) {
$msgKey = array( $msgKey );
}
if ( $out instanceof OutputPage ) {
$context = $out->getContext();
} else {
$context = RequestContext::getMain();
}
# Insert list of top 50 (or top $lim) items
$loglist = new LogEventsList( $context, null, $flags );
$pager = new LogPager( $loglist, $types, $user, $page, '', $conds );
if ( isset( $param['offset'] ) ) { # Tell pager to ignore WebRequest offset
$pager->setOffset( $param['offset'] );
}
if( $lim > 0 ) $pager->mLimit = $lim;
$logBody = $pager->getBody();
$s = '';
if( $logBody ) {
if ( $msgKey[0] ) {
$s = '<div class="mw-warning-with-logexcerpt">';
if ( count( $msgKey ) == 1 ) {
$s .= $context->msg( $msgKey[0] )->parseAsBlock();
} else { // Process additional arguments
$args = $msgKey;
array_shift( $args );
$s .= $context->msg( $msgKey[0], $args )->parseAsBlock();
}
}
$s .= $loglist->beginLogEventsList() .
$logBody .
$loglist->endLogEventsList();
} else {
if ( $showIfEmpty ) {
$s = Html::rawElement( 'div', array( 'class' => 'mw-warning-logempty' ),
$context->msg( 'logempty' )->parse() );
}
}
if( $pager->getNumRows() > $pager->mLimit ) { # Show "Full log" link
$urlParam = array();
if ( $page instanceof Title ) {
$urlParam['page'] = $page->getPrefixedDBkey();
} elseif ( $page != '' ) {
$urlParam['page'] = $page;
}
if ( $user != '' )
$urlParam['user'] = $user;
if ( !is_array( $types ) ) # Make it an array, if it isn't
$types = array( $types );
# If there is exactly one log type, we can link to Special:Log?type=foo
if ( count( $types ) == 1 )
$urlParam['type'] = $types[0];
$s .= Linker::link(
SpecialPage::getTitleFor( 'Log' ),
$context->msg( 'log-fulllog' )->escaped(),
array(),
$urlParam
);
}
if ( $logBody && $msgKey[0] ) {
$s .= '</div>';
}
if ( $wrap != '' ) { // Wrap message in html
$s = str_replace( '$1', $s, $wrap );
}
/* hook can return false, if we don't want the message to be emitted (Wikia BugId:7093) */
if ( wfRunHooks( 'LogEventsListShowLogExtract', array( &$s, $types, $page, $user, $param ) ) ) {
// $out can be either an OutputPage object or a String-by-reference
if ( $out instanceof OutputPage ) {
$out->addHTML( $s );
} else {
$out = $s;
}
}
return $pager->getNumRows();
}
/**
* SQL clause to skip forbidden log types for this user
*
* @param $db DatabaseBase
* @param $audience string, public/user
* @param $user User object to check, or null to use $wgUser
* @return Mixed: string or false
*/
public static function getExcludeClause( $db, $audience = 'public', User $user = null ) {
global $wgLogRestrictions;
if ( $audience != 'public' && $user === null ) {
global $wgUser;
$user = $wgUser;
}
// Reset the array, clears extra "where" clauses when $par is used
$hiddenLogs = array();
// Don't show private logs to unprivileged users
foreach( $wgLogRestrictions as $logType => $right ) {
if( $audience == 'public' || !$user->isAllowed( $right ) ) {
$hiddenLogs[] = $logType;
}
}
if( count( $hiddenLogs ) == 1 ) {
return 'log_type != ' . $db->addQuotes( $hiddenLogs[0] );
} elseif( $hiddenLogs ) {
return 'log_type NOT IN (' . $db->makeList( $hiddenLogs ) . ')';
}
return false;
}
}