Your IP : 172.69.17.154
<?php
/**
* Page protection
*
* Copyright © 2005 Brion Vibber <brion@pobox.com>
* 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
*/
/**
* Handles the page protection UI and backend
*/
class ProtectionForm {
/** A map of action to restriction level, from request or default */
var $mRestrictions = array();
/** The custom/additional protection reason */
var $mReason = '';
/** The reason selected from the list, blank for other/additional */
var $mReasonSelection = '';
/** True if the restrictions are cascading, from request or existing protection */
var $mCascade = false;
/** Map of action to "other" expiry time. Used in preference to mExpirySelection. */
var $mExpiry = array();
/**
* Map of action to value selected in expiry drop-down list.
* Will be set to 'othertime' whenever mExpiry is set.
*/
var $mExpirySelection = array();
/** Permissions errors for the protect action */
var $mPermErrors = array();
/** Types (i.e. actions) for which levels can be selected */
var $mApplicableTypes = array();
/** Map of action to the expiry time of the existing protection */
var $mExistingExpiry = array();
function __construct( Page $article ) {
global $wgUser;
// Set instance variables.
$this->mArticle = $article;
$this->mTitle = $article->getTitle();
$this->mApplicableTypes = $this->mTitle->getRestrictionTypes();
// Check if the form should be disabled.
// If it is, the form will be available in read-only to show levels.
$this->mPermErrors = $this->mTitle->getUserPermissionsErrors( 'protect', $wgUser );
if ( wfReadOnly() ) {
$this->mPermErrors[] = array( 'readonlytext', wfReadOnlyReason() );
}
$this->disabled = $this->mPermErrors != array();
$this->disabledAttrib = $this->disabled
? array( 'disabled' => 'disabled' )
: array();
$this->loadData();
}
/**
* Loads the current state of protection into the object.
*/
function loadData() {
global $wgRequest, $wgUser;
global $wgRestrictionLevels;
$this->mCascade = $this->mTitle->areRestrictionsCascading();
$this->mReason = $wgRequest->getText( 'mwProtect-reason' );
$this->mReasonSelection = $wgRequest->getText( 'wpProtectReasonSelection' );
$this->mCascade = $wgRequest->getBool( 'mwProtect-cascade', $this->mCascade );
foreach( $this->mApplicableTypes as $action ) {
// @todo FIXME: This form currently requires individual selections,
// but the db allows multiples separated by commas.
// Pull the actual restriction from the DB
$this->mRestrictions[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
if ( !$this->mRestrictions[$action] ) {
// No existing expiry
$existingExpiry = '';
} else {
$existingExpiry = $this->mTitle->getRestrictionExpiry( $action );
}
$this->mExistingExpiry[$action] = $existingExpiry;
$requestExpiry = $wgRequest->getText( "mwProtect-expiry-$action" );
$requestExpirySelection = $wgRequest->getVal( "wpProtectExpirySelection-$action" );
if ( $requestExpiry ) {
// Custom expiry takes precedence
$this->mExpiry[$action] = $requestExpiry;
$this->mExpirySelection[$action] = 'othertime';
} elseif ( $requestExpirySelection ) {
// Expiry selected from list
$this->mExpiry[$action] = '';
$this->mExpirySelection[$action] = $requestExpirySelection;
} elseif ( $existingExpiry == 'infinity' ) {
// Existing expiry is infinite, use "infinite" in drop-down
$this->mExpiry[$action] = '';
$this->mExpirySelection[$action] = 'infinite';
} elseif ( $existingExpiry ) {
// Use existing expiry in its own list item
$this->mExpiry[$action] = '';
$this->mExpirySelection[$action] = $existingExpiry;
} else {
// Final default: infinite
$this->mExpiry[$action] = '';
$this->mExpirySelection[$action] = 'infinite';
}
$val = $wgRequest->getVal( "mwProtect-level-$action" );
if( isset( $val ) && in_array( $val, $wgRestrictionLevels ) ) {
// Prevent users from setting levels that they cannot later unset
if( $val == 'sysop' ) {
// Special case, rewrite sysop to either protect and editprotected
if( !$wgUser->isAllowedAny( 'protect', 'editprotected' ) )
continue;
} else {
if( !$wgUser->isAllowed( $val ) )
continue;
}
$this->mRestrictions[$action] = $val;
}
}
}
/**
* Get the expiry time for a given action, by combining the relevant inputs.
*
* @param $action string
*
* @return string 14-char timestamp or "infinity", or false if the input was invalid
*/
function getExpiry( $action ) {
if ( $this->mExpirySelection[$action] == 'existing' ) {
return $this->mExistingExpiry[$action];
} elseif ( $this->mExpirySelection[$action] == 'othertime' ) {
$value = $this->mExpiry[$action];
} else {
$value = $this->mExpirySelection[$action];
}
if ( $value == 'infinite' || $value == 'indefinite' || $value == 'infinity' ) {
$time = wfGetDB( DB_SLAVE )->getInfinity();
} else {
$unix = strtotime( $value );
if ( !$unix || $unix === -1 ) {
return false;
}
// @todo FIXME: Non-qualified absolute times are not in users specified timezone
// and there isn't notice about it in the ui
$time = wfTimestamp( TS_MW, $unix );
}
return $time;
}
/**
* Main entry point for action=protect and action=unprotect
*/
function execute() {
global $wgRequest, $wgOut;
if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
throw new ErrorPageError( 'protect-badnamespace-title', 'protect-badnamespace-text' );
}
if( $wgRequest->wasPosted() ) {
if( $this->save() ) {
$q = $this->mArticle->isRedirect() ? 'redirect=no' : '';
$wgOut->redirect( $this->mTitle->getFullUrl( $q ) );
}
} else {
$this->show();
}
}
/**
* Show the input form with optional error message
*
* @param string $err error message or null if there's no error
*/
function show( $err = null ) {
global $wgOut;
$wgOut->setRobotPolicy( 'noindex,nofollow' );
$wgOut->addBacklinkSubtitle( $this->mTitle );
if ( is_array( $err ) ) {
$wgOut->wrapWikiMsg( "<p class='error'>\n$1\n</p>\n", $err );
} elseif ( is_string( $err ) ) {
$wgOut->addHTML( "<p class='error'>{$err}</p>\n" );
}
if ( $this->mTitle->getRestrictionTypes() === array() ) {
// No restriction types available for the current title
// this might happen if an extension alters the available types
$wgOut->setPageTitle( wfMessage( 'protect-norestrictiontypes-title', $this->mTitle->getPrefixedText() ) );
$wgOut->addWikiText( wfMessage( 'protect-norestrictiontypes-text' )->text() );
// Show the log in case protection was possible once
$this->showLogExtract( $wgOut );
// return as there isn't anything else we can do
return;
}
list( $cascadeSources, /* $restrictions */ ) = $this->mTitle->getCascadeProtectionSources();
if ( $cascadeSources && count( $cascadeSources ) > 0 ) {
$titles = '';
foreach ( $cascadeSources as $title ) {
$titles .= '* [[:' . $title->getPrefixedText() . "]]\n";
}
$wgOut->wrapWikiMsg( "<div id=\"mw-protect-cascadeon\">\n$1\n" . $titles . "</div>", array( 'protect-cascadeon', count( $cascadeSources ) ) );
}
# Show an appropriate message if the user isn't allowed or able to change
# the protection settings at this time
if ( $this->disabled ) {
$wgOut->setPageTitle( wfMessage( 'protect-title-notallowed', $this->mTitle->getPrefixedText() ) );
$wgOut->addWikiText( $wgOut->formatPermissionsErrorMessage( $this->mPermErrors, 'protect' ) );
} else {
$wgOut->setPageTitle( wfMessage( 'protect-title', $this->mTitle->getPrefixedText() ) );
$wgOut->addWikiMsg( 'protect-text',
wfEscapeWikiText( $this->mTitle->getPrefixedText() ) );
}
$wgOut->addHTML( $this->buildForm() );
$this->showLogExtract( $wgOut );
}
/**
* Save submitted protection form
*
* @return Boolean: success
*/
function save() {
global $wgRequest, $wgUser, $wgOut;
# Permission check!
if ( $this->disabled ) {
$this->show();
return false;
}
$token = $wgRequest->getVal( 'wpEditToken' );
if ( !$wgUser->matchEditToken( $token, array( 'protect', $this->mTitle->getPrefixedDBkey() ) ) ) {
$this->show( array( 'sessionfailure' ) );
return false;
}
# Create reason string. Use list and/or custom string.
$reasonstr = $this->mReasonSelection;
if ( $reasonstr != 'other' && $this->mReason != '' ) {
// Entry from drop down menu + additional comment
$reasonstr .= wfMessage( 'colon-separator' )->text() . $this->mReason;
} elseif ( $reasonstr == 'other' ) {
$reasonstr = $this->mReason;
}
$expiry = array();
foreach( $this->mApplicableTypes as $action ) {
$expiry[$action] = $this->getExpiry( $action );
if( empty( $this->mRestrictions[$action] ) )
continue; // unprotected
if ( !$expiry[$action] ) {
$this->show( array( 'protect_expiry_invalid' ) );
return false;
}
if ( $expiry[$action] < wfTimestampNow() ) {
$this->show( array( 'protect_expiry_old' ) );
return false;
}
}
# They shouldn't be able to do this anyway, but just to make sure, ensure that cascading restrictions aren't being applied
# to a semi-protected page.
$edit_restriction = isset( $this->mRestrictions['edit'] ) ? $this->mRestrictions['edit'] : '';
$this->mCascade = $wgRequest->getBool( 'mwProtect-cascade' );
if ( $this->mCascade && ($edit_restriction != 'protect') &&
!User::groupHasPermission( $edit_restriction, 'protect' ) )
$this->mCascade = false;
$status = $this->mArticle->doUpdateRestrictions( $this->mRestrictions, $expiry, $this->mCascade, $reasonstr, $wgUser );
if ( !$status->isOK() ) {
$this->show( $wgOut->parseInline( $status->getWikiText() ) );
return false;
}
/**
* Give extensions a change to handle added form items
*
* @since 1.19 you can (and you should) return false to abort saving;
* you can also return an array of message name and its parameters
*/
$errorMsg = '';
if( !wfRunHooks( 'ProtectionForm::save', array( $this->mArticle, &$errorMsg ) ) ) {
if ( $errorMsg == '' ) {
$errorMsg = array( 'hookaborted' );
}
}
if( $errorMsg != '' ) {
$this->show( $errorMsg );
return false;
}
if ( $wgUser->isLoggedIn() && $wgRequest->getCheck( 'mwProtectWatch' ) != $wgUser->isWatched( $this->mTitle ) ) {
if ( $wgRequest->getCheck( 'mwProtectWatch' ) ) {
WatchAction::doWatch( $this->mTitle, $wgUser );
} else {
WatchAction::doUnwatch( $this->mTitle, $wgUser );
}
}
return true;
}
/**
* Build the input form
*
* @return String: HTML form
*/
function buildForm() {
global $wgUser, $wgLang, $wgOut;
$mProtectreasonother = Xml::label(
wfMessage( 'protectcomment' )->text(),
'wpProtectReasonSelection'
);
$mProtectreason = Xml::label(
wfMessage( 'protect-otherreason' )->text(),
'mwProtect-reason'
);
$out = '';
if( !$this->disabled ) {
$wgOut->addModules( 'mediawiki.legacy.protect' );
$out .= Xml::openElement( 'form', array( 'method' => 'post',
'action' => $this->mTitle->getLocalUrl( 'action=protect' ),
'id' => 'mw-Protect-Form', 'onsubmit' => 'ProtectionForm.enableUnchainedInputs(true)' ) );
}
$out .= Xml::openElement( 'fieldset' ) .
Xml::element( 'legend', null, wfMessage( 'protect-legend' )->text() ) .
Xml::openElement( 'table', array( 'id' => 'mwProtectSet' ) ) .
Xml::openElement( 'tbody' );
foreach( $this->mRestrictions as $action => $selected ) {
/* Not all languages have V_x <-> N_x relation */
$msg = wfMessage( 'restriction-' . $action );
$out .= "<tr><td>".
Xml::openElement( 'fieldset' ) .
Xml::element( 'legend', null, $msg->exists() ? $msg->text() : $action ) .
Xml::openElement( 'table', array( 'id' => "mw-protect-table-$action" ) ) .
"<tr><td>" . $this->buildSelector( $action, $selected ) . "</td></tr><tr><td>";
$reasonDropDown = Xml::listDropDown( 'wpProtectReasonSelection',
wfMessage( 'protect-dropdown' )->inContentLanguage()->text(),
wfMessage( 'protect-otherreason-op' )->inContentLanguage()->text(),
$this->mReasonSelection,
'mwProtect-reason', 4 );
$scExpiryOptions = wfMessage( 'protect-expiry-options' )->inContentLanguage()->text();
$showProtectOptions = ($scExpiryOptions !== '-' && !$this->disabled);
$mProtectexpiry = Xml::label(
wfMessage( 'protectexpiry' )->text(),
"mwProtectExpirySelection-$action"
);
$mProtectother = Xml::label(
wfMessage( 'protect-othertime' )->text(),
"mwProtect-$action-expires"
);
$expiryFormOptions = '';
if ( $this->mExistingExpiry[$action] && $this->mExistingExpiry[$action] != 'infinity' ) {
$timestamp = $wgLang->timeanddate( $this->mExistingExpiry[$action], true );
$d = $wgLang->date( $this->mExistingExpiry[$action], true );
$t = $wgLang->time( $this->mExistingExpiry[$action], true );
$expiryFormOptions .=
Xml::option(
wfMessage( 'protect-existing-expiry', $timestamp, $d, $t )->text(),
'existing',
$this->mExpirySelection[$action] == 'existing'
) . "\n";
}
$expiryFormOptions .= Xml::option(
wfMessage( 'protect-othertime-op' )->text(),
"othertime"
) . "\n";
foreach( explode( ',', $scExpiryOptions ) as $option ) {
if ( strpos( $option, ":" ) === false ) {
$show = $value = $option;
} else {
list( $show, $value ) = explode( ":", $option );
}
$show = htmlspecialchars( $show );
$value = htmlspecialchars( $value );
$expiryFormOptions .= Xml::option( $show, $value, $this->mExpirySelection[$action] === $value ) . "\n";
}
# Add expiry dropdown
if( $showProtectOptions && !$this->disabled ) {
$out .= "
<table><tr>
<td class='mw-label'>
{$mProtectexpiry}
</td>
<td class='mw-input'>" .
Xml::tags( 'select',
array(
'id' => "mwProtectExpirySelection-$action",
'name' => "wpProtectExpirySelection-$action",
'onchange' => "ProtectionForm.updateExpiryList(this)",
'tabindex' => '2' ) + $this->disabledAttrib,
$expiryFormOptions ) .
"</td>
</tr></table>";
}
# Add custom expiry field
$attribs = array( 'id' => "mwProtect-$action-expires",
'onkeyup' => 'ProtectionForm.updateExpiry(this)',
'onchange' => 'ProtectionForm.updateExpiry(this)' ) + $this->disabledAttrib;
$out .= "<table><tr>
<td class='mw-label'>" .
$mProtectother .
'</td>
<td class="mw-input">' .
Xml::input( "mwProtect-expiry-$action", 50, $this->mExpiry[$action], $attribs ) .
'</td>
</tr></table>';
$out .= "</td></tr>" .
Xml::closeElement( 'table' ) .
Xml::closeElement( 'fieldset' ) .
"</td></tr>";
}
# Give extensions a chance to add items to the form
wfRunHooks( 'ProtectionForm::buildForm', array( $this->mArticle, &$out ) );
$out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
// JavaScript will add another row with a value-chaining checkbox
if( $this->mTitle->exists() ) {
$out .= Xml::openElement( 'table', array( 'id' => 'mw-protect-table2' ) ) .
Xml::openElement( 'tbody' );
$out .= '<tr>
<td></td>
<td class="mw-input">' .
Xml::checkLabel(
wfMessage( 'protect-cascade' )->text(),
'mwProtect-cascade',
'mwProtect-cascade',
$this->mCascade, $this->disabledAttrib
) .
"</td>
</tr>\n";
$out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
}
# Add manual and custom reason field/selects as well as submit
if( !$this->disabled ) {
$out .= Xml::openElement( 'table', array( 'id' => 'mw-protect-table3' ) ) .
Xml::openElement( 'tbody' );
$out .= "
<tr>
<td class='mw-label'>
{$mProtectreasonother}
</td>
<td class='mw-input'>
{$reasonDropDown}
</td>
</tr>
<tr>
<td class='mw-label'>
{$mProtectreason}
</td>
<td class='mw-input'>" .
Xml::input( 'mwProtect-reason', 60, $this->mReason, array( 'type' => 'text',
'id' => 'mwProtect-reason', 'maxlength' => 180 ) ) .
// Limited maxlength as the database trims at 255 bytes and other texts
// chosen by dropdown menus on this page are also included in this database field.
// The byte limit of 180 bytes is enforced in javascript
"</td>
</tr>";
# Disallow watching is user is not logged in
if( $wgUser->isLoggedIn() ) {
$out .= "
<tr>
<td></td>
<td class='mw-input'>" .
Xml::checkLabel( wfMessage( 'watchthis' )->text(),
'mwProtectWatch', 'mwProtectWatch',
$wgUser->isWatched( $this->mTitle ) || $wgUser->getOption( 'watchdefault' ) ) .
"</td>
</tr>";
}
$out .= "
<tr>
<td></td>
<td class='mw-submit'>" .
Xml::submitButton(
wfMessage( 'confirm' )->text(),
array( 'id' => 'mw-Protect-submit' )
) .
"</td>
</tr>\n";
$out .= Xml::closeElement( 'tbody' ) . Xml::closeElement( 'table' );
}
$out .= Xml::closeElement( 'fieldset' );
if ( $wgUser->isAllowed( 'editinterface' ) ) {
$title = Title::makeTitle( NS_MEDIAWIKI, 'Protect-dropdown' );
$link = Linker::link(
$title,
wfMessage( 'protect-edit-reasonlist' )->escaped(),
array(),
array( 'action' => 'edit' )
);
$out .= '<p class="mw-protect-editreasons">' . $link . '</p>';
}
if ( !$this->disabled ) {
$out .= Html::hidden( 'wpEditToken', $wgUser->getEditToken( array( 'protect', $this->mTitle->getPrefixedDBkey() ) ) );
$out .= Xml::closeElement( 'form' );
$wgOut->addScript( $this->buildCleanupScript() );
}
return $out;
}
/**
* Build protection level selector
*
* @param string $action action to protect
* @param string $selected current protection level
* @return String: HTML fragment
*/
function buildSelector( $action, $selected ) {
global $wgRestrictionLevels, $wgUser;
$levels = array();
foreach( $wgRestrictionLevels as $key ) {
//don't let them choose levels above their own (aka so they can still unprotect and edit the page). but only when the form isn't disabled
if( $key == 'sysop' ) {
//special case, rewrite sysop to protect and editprotected
if( !$wgUser->isAllowedAny( 'protect', 'editprotected' ) && !$this->disabled )
continue;
} else {
if( !$wgUser->isAllowed( $key ) && !$this->disabled )
continue;
}
$levels[] = $key;
}
$id = 'mwProtect-level-' . $action;
$attribs = array(
'id' => $id,
'name' => $id,
'size' => count( $levels ),
'onchange' => 'ProtectionForm.updateLevels(this)',
) + $this->disabledAttrib;
$out = Xml::openElement( 'select', $attribs );
foreach( $levels as $key ) {
$out .= Xml::option( $this->getOptionLabel( $key ), $key, $key == $selected );
}
$out .= Xml::closeElement( 'select' );
return $out;
}
/**
* Prepare the label for a protection selector option
*
* @param string $permission permission required
* @return String
*/
private function getOptionLabel( $permission ) {
if( $permission == '' ) {
return wfMessage( 'protect-default' )->text();
} else {
$msg = wfMessage( "protect-level-{$permission}" );
if( $msg->exists() ) {
return $msg->text();
}
return wfMessage( 'protect-fallback', $permission )->text();
}
}
function buildCleanupScript() {
global $wgRestrictionLevels, $wgOut;
$cascadeableLevels = array();
foreach( $wgRestrictionLevels as $key ) {
if ( User::groupHasPermission( $key, 'protect' )
|| $key == 'protect'
) {
$cascadeableLevels[] = $key;
}
}
$options = array(
'tableId' => 'mwProtectSet',
'labelText' => wfMessage( 'protect-unchain-permissions' )->plain(),
'numTypes' => count( $this->mApplicableTypes ),
'existingMatch' => count( array_unique( $this->mExistingExpiry ) ) === 1,
);
$wgOut->addJsConfigVars( 'wgCascadeableLevels', $cascadeableLevels );
$script = Xml::encodeJsCall( 'ProtectionForm.init', array( $options ) );
return Html::inlineScript( ResourceLoader::makeLoaderConditionalScript( $script ) );
}
/**
* Show protection long extracts for this page
*
* @param $out OutputPage
* @access private
*/
function showLogExtract( &$out ) {
# Show relevant lines from the protection log:
$protectLogPage = new LogPage( 'protect' );
$out->addHTML( Xml::element( 'h2', null, $protectLogPage->getName()->text() ) );
LogEventsList::showLogExtract( $out, 'protect', $this->mTitle );
# Let extensions add other relevant log extracts
wfRunHooks( 'ProtectionForm::showLogExtract', array( $this->mArticle, $out ) );
}
}