private static function doRollback()
{
global $wgRequest, $wgOut, $wgContLang;
$wgOut->setArticleBodyOnly(true);
$response = "";
$aid = intVal($wgRequest->getVal('aid'));
$oldid = intVal($wgRequest->getVal('old'));
$from = $wgRequest->getVal('from');
$from = preg_replace('/[_-]/', ' ', $from);
$t = Title::newFromId($aid);
if ($t && $t->exists()) {
$r = Revision::newFromId($oldid);
if ($r) {
if ($from == '') {
// no public user name
$summary = wfMessage('rcp-revertpage-nouser');
} else {
$summary = wfMessage('rcp-revertpage');
}
// Allow the custom summary to use the same args as the default message
$args = array($r->getUserText(), $from, $oldid);
if ($summary instanceof Message) {
$summary = $summary->params($args)->inContentLanguage()->text();
} else {
$summary = wfMsgReplaceArgs($summary, $args);
}
// Trim spaces on user supplied text
$summary = trim($summary);
// Truncate for whole multibyte characters.
$summary = $wgContLang->truncate($summary, 255);
$a = new Article($t);
$newRev = Revision::newFromTitle($t);
$old = Linker::revUserTools(Revision::newFromId($oldid));
$new = Linker::revUserTools($newRev);
$revision = 'r' . htmlspecialchars($wgContLang->formatNum($oldid, true));
$revlink = Linker::link($t, $revision, array(), array('oldid' => $oldid, 'diff' => 'prev'));
$response = WfMessage('rcp-rollback-success')->rawParams($new, $old, $revlink);
$status = $a->doEditContent($r->getContent(), $summary);
if (!$status->isOK()) {
$response = $status->getErrorsArray();
}
// raise error, when the edit is an edit without a new version
if (empty($status->value['revision'])) {
$resultDetails = array('current' => $current);
$query = array('oldid' => $oldid, 'diff' => 'prev');
$response = WfMessage('rcp-alreadyrolled')->params(array(htmlspecialchars($t->getPrefixedText()), htmlspecialchars($from), htmlspecialchars($newRev->getUserText())))->inContentLanguage()->parse();
}
}
}
$wgOut->addHtml($response);
}
/**
* Attempt submission (no UI)
*
* @param array $result Array to add statuses to, currently with the
* possible keys:
* - spam (string): Spam string from content if any spam is detected by
* matchSpamRegex.
* - sectionanchor (string): Section anchor for a section save.
* - nullEdit (boolean): Set if doEditContent is OK. True if null edit,
* false otherwise.
* - redirect (bool): Set if doEditContent is OK. True if resulting
* revision is a redirect.
* @param bool $bot True if edit is being made under the bot right.
*
* @return Status Status object, possibly with a message, but always with
* one of the AS_* constants in $status->value,
*
* @todo FIXME: This interface is TERRIBLE, but hard to get rid of due to
* various error display idiosyncrasies. There are also lots of cases
* where error metadata is set in the object and retrieved later instead
* of being returned, e.g. AS_CONTENT_TOO_BIG and
* AS_BLOCKED_PAGE_FOR_USER. All that stuff needs to be cleaned up some
* time.
*/
function internalAttemptSave(&$result, $bot = false)
{
global $wgUser, $wgRequest, $wgParser, $wgMaxArticleSize;
$status = Status::newGood();
wfProfileIn(__METHOD__);
wfProfileIn(__METHOD__ . '-checks');
if (!wfRunHooks('EditPage::attemptSave', array($this))) {
wfDebug("Hook 'EditPage::attemptSave' aborted article saving\n");
$status->fatal('hookaborted');
$status->value = self::AS_HOOK_ERROR;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
$spam = $wgRequest->getText('wpAntispam');
if ($spam !== '') {
wfDebugLog('SimpleAntiSpam', $wgUser->getName() . ' editing "' . $this->mTitle->getPrefixedText() . '" submitted bogus field "' . $spam . '"');
$status->fatal('spamprotectionmatch', false);
$status->value = self::AS_SPAM_ERROR;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
try {
# Construct Content object
$textbox_content = $this->toEditContent($this->textbox1);
} catch (MWContentSerializationException $ex) {
$status->fatal('content-failed-to-parse', $this->contentModel, $this->contentFormat, $ex->getMessage());
$status->value = self::AS_PARSE_ERROR;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
# Check image redirect
if ($this->mTitle->getNamespace() == NS_FILE && $textbox_content->isRedirect() && !$wgUser->isAllowed('upload')) {
$code = $wgUser->isAnon() ? self::AS_IMAGE_REDIRECT_ANON : self::AS_IMAGE_REDIRECT_LOGGED;
$status->setResult(false, $code);
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
# Check for spam
$match = self::matchSummarySpamRegex($this->summary);
if ($match === false && $this->section == 'new') {
# $wgSpamRegex is enforced on this new heading/summary because, unlike
# regular summaries, it is added to the actual wikitext.
if ($this->sectiontitle !== '') {
# This branch is taken when the API is used with the 'sectiontitle' parameter.
$match = self::matchSpamRegex($this->sectiontitle);
} else {
# This branch is taken when the "Add Topic" user interface is used, or the API
# is used with the 'summary' parameter.
$match = self::matchSpamRegex($this->summary);
}
}
if ($match === false) {
$match = self::matchSpamRegex($this->textbox1);
}
if ($match !== false) {
$result['spam'] = $match;
$ip = $wgRequest->getIP();
$pdbk = $this->mTitle->getPrefixedDBkey();
$match = str_replace("\n", '', $match);
wfDebugLog('SpamRegex', "{$ip} spam regex hit [[{$pdbk}]]: \"{$match}\"");
$status->fatal('spamprotectionmatch', $match);
$status->value = self::AS_SPAM_ERROR;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
if (!wfRunHooks('EditFilter', array($this, $this->textbox1, $this->section, &$this->hookError, $this->summary))) {
# Error messages etc. could be handled within the hook...
$status->fatal('hookaborted');
$status->value = self::AS_HOOK_ERROR;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
} elseif ($this->hookError != '') {
# ...or the hook could be expecting us to produce an error
$status->fatal('hookaborted');
$status->value = self::AS_HOOK_ERROR_EXPECTED;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
if ($wgUser->isBlockedFrom($this->mTitle, false)) {
// Auto-block user's IP if the account was "hard" blocked
$wgUser->spreadAnyEditBlock();
# Check block state against master, thus 'false'.
$status->setResult(false, self::AS_BLOCKED_PAGE_FOR_USER);
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
$this->kblength = (int) (strlen($this->textbox1) / 1024);
if ($this->kblength > $wgMaxArticleSize) {
// Error will be displayed by showEditForm()
$this->tooBig = true;
$status->setResult(false, self::AS_CONTENT_TOO_BIG);
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
if (!$wgUser->isAllowed('edit')) {
if ($wgUser->isAnon()) {
$status->setResult(false, self::AS_READ_ONLY_PAGE_ANON);
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
} else {
$status->fatal('readonlytext');
$status->value = self::AS_READ_ONLY_PAGE_LOGGED;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
}
if ($this->contentModel !== $this->mTitle->getContentModel() && !$wgUser->isAllowed('editcontentmodel')) {
$status->setResult(false, self::AS_NO_CHANGE_CONTENT_MODEL);
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
if (wfReadOnly()) {
$status->fatal('readonlytext');
$status->value = self::AS_READ_ONLY_PAGE;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
if ($wgUser->pingLimiter() || $wgUser->pingLimiter('linkpurge', 0)) {
$status->fatal('actionthrottledtext');
$status->value = self::AS_RATE_LIMITED;
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
# If the article has been deleted while editing, don't save it without
# confirmation
if ($this->wasDeletedSinceLastEdit() && !$this->recreate) {
$status->setResult(false, self::AS_ARTICLE_WAS_DELETED);
wfProfileOut(__METHOD__ . '-checks');
wfProfileOut(__METHOD__);
return $status;
}
wfProfileOut(__METHOD__ . '-checks');
# Load the page data from the master. If anything changes in the meantime,
# we detect it by using page_latest like a token in a 1 try compare-and-swap.
$this->mArticle->loadPageData('fromdbmaster');
$new = !$this->mArticle->exists();
if ($new) {
// Late check for create permission, just in case *PARANOIA*
if (!$this->mTitle->userCan('create', $wgUser)) {
$status->fatal('nocreatetext');
$status->value = self::AS_NO_CREATE_PERMISSION;
wfDebug(__METHOD__ . ": no create permission\n");
wfProfileOut(__METHOD__);
return $status;
}
// Don't save a new page if it's blank or if it's a MediaWiki:
// message with content equivalent to default (allow empty pages
// in this case to disable messages, see bug 50124)
$defaultMessageText = $this->mTitle->getDefaultMessageText();
if ($this->mTitle->getNamespace() === NS_MEDIAWIKI && $defaultMessageText !== false) {
$defaultText = $defaultMessageText;
} else {
$defaultText = '';
}
if (!$this->allowBlankArticle && $this->textbox1 === $defaultText) {
$this->blankArticle = true;
$status->fatal('blankarticle');
$status->setResult(false, self::AS_BLANK_ARTICLE);
wfProfileOut(__METHOD__);
return $status;
}
if (!$this->runPostMergeFilters($textbox_content, $status, $wgUser)) {
wfProfileOut(__METHOD__);
return $status;
}
$content = $textbox_content;
$result['sectionanchor'] = '';
if ($this->section == 'new') {
if ($this->sectiontitle !== '') {
// Insert the section title above the content.
$content = $content->addSectionHeader($this->sectiontitle);
} elseif ($this->summary !== '') {
// Insert the section title above the content.
$content = $content->addSectionHeader($this->summary);
}
$this->summary = $this->newSectionSummary($result['sectionanchor']);
}
$status->value = self::AS_SUCCESS_NEW_ARTICLE;
} else {
# not $new
# Article exists. Check for edit conflict.
$this->mArticle->clear();
# Force reload of dates, etc.
$timestamp = $this->mArticle->getTimestamp();
wfDebug("timestamp: {$timestamp}, edittime: {$this->edittime}\n");
if ($timestamp != $this->edittime) {
$this->isConflict = true;
if ($this->section == 'new') {
if ($this->mArticle->getUserText() == $wgUser->getName() && $this->mArticle->getComment() == $this->newSectionSummary()) {
// Probably a duplicate submission of a new comment.
// This can happen when squid resends a request after
// a timeout but the first one actually went through.
wfDebug(__METHOD__ . ": duplicate new section submission; trigger edit conflict!\n");
} else {
// New comment; suppress conflict.
$this->isConflict = false;
wfDebug(__METHOD__ . ": conflict suppressed; new section\n");
}
} elseif ($this->section == '' && Revision::userWasLastToEdit(DB_MASTER, $this->mTitle->getArticleID(), $wgUser->getId(), $this->edittime)) {
# Suppress edit conflict with self, except for section edits where merging is required.
wfDebug(__METHOD__ . ": Suppressing edit conflict, same user.\n");
$this->isConflict = false;
}
}
// If sectiontitle is set, use it, otherwise use the summary as the section title.
if ($this->sectiontitle !== '') {
$sectionTitle = $this->sectiontitle;
} else {
$sectionTitle = $this->summary;
}
$content = null;
if ($this->isConflict) {
wfDebug(__METHOD__ . ": conflict! getting section '{$this->section}' for time '{$this->edittime}'" . " (article time '{$timestamp}')\n");
$content = $this->mArticle->replaceSectionContent($this->section, $textbox_content, $sectionTitle, $this->edittime);
} else {
wfDebug(__METHOD__ . ": getting section '{$this->section}'\n");
$content = $this->mArticle->replaceSectionContent($this->section, $textbox_content, $sectionTitle);
}
if (is_null($content)) {
wfDebug(__METHOD__ . ": activating conflict; section replace failed.\n");
$this->isConflict = true;
$content = $textbox_content;
// do not try to merge here!
} elseif ($this->isConflict) {
# Attempt merge
if ($this->mergeChangesIntoContent($content)) {
// Successful merge! Maybe we should tell the user the good news?
$this->isConflict = false;
wfDebug(__METHOD__ . ": Suppressing edit conflict, successful merge.\n");
} else {
$this->section = '';
$this->textbox1 = ContentHandler::getContentText($content);
wfDebug(__METHOD__ . ": Keeping edit conflict, failed merge.\n");
}
}
if ($this->isConflict) {
$status->setResult(false, self::AS_CONFLICT_DETECTED);
wfProfileOut(__METHOD__);
return $status;
}
if (!$this->runPostMergeFilters($content, $status, $wgUser)) {
wfProfileOut(__METHOD__);
return $status;
}
if ($this->section == 'new') {
// Handle the user preference to force summaries here
if (!$this->allowBlankSummary && trim($this->summary) == '') {
$this->missingSummary = true;
$status->fatal('missingsummary');
// or 'missingcommentheader' if $section == 'new'. Blegh
$status->value = self::AS_SUMMARY_NEEDED;
wfProfileOut(__METHOD__);
return $status;
}
// Do not allow the user to post an empty comment
if ($this->textbox1 == '') {
$this->missingComment = true;
$status->fatal('missingcommenttext');
$status->value = self::AS_TEXTBOX_EMPTY;
wfProfileOut(__METHOD__);
return $status;
}
} elseif (!$this->allowBlankSummary && !$content->equals($this->getOriginalContent($wgUser)) && !$content->isRedirect() && md5($this->summary) == $this->autoSumm) {
$this->missingSummary = true;
$status->fatal('missingsummary');
$status->value = self::AS_SUMMARY_NEEDED;
wfProfileOut(__METHOD__);
return $status;
}
# All's well
wfProfileIn(__METHOD__ . '-sectionanchor');
$sectionanchor = '';
if ($this->section == 'new') {
$this->summary = $this->newSectionSummary($sectionanchor);
} elseif ($this->section != '') {
# Try to get a section anchor from the section source, redirect
# to edited section if header found.
# XXX: Might be better to integrate this into Article::replaceSection
# for duplicate heading checking and maybe parsing.
$hasmatch = preg_match("/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches);
# We can't deal with anchors, includes, html etc in the header for now,
# headline would need to be parsed to improve this.
if ($hasmatch && strlen($matches[2]) > 0) {
$sectionanchor = $wgParser->guessLegacySectionNameFromWikiText($matches[2]);
}
}
$result['sectionanchor'] = $sectionanchor;
wfProfileOut(__METHOD__ . '-sectionanchor');
// Save errors may fall down to the edit form, but we've now
// merged the section into full text. Clear the section field
// so that later submission of conflict forms won't try to
// replace that into a duplicated mess.
$this->textbox1 = $this->toEditText($content);
$this->section = '';
$status->value = self::AS_SUCCESS_UPDATE;
}
// Check for length errors again now that the section is merged in
$this->kblength = (int) (strlen($this->toEditText($content)) / 1024);
if ($this->kblength > $wgMaxArticleSize) {
$this->tooBig = true;
$status->setResult(false, self::AS_MAX_ARTICLE_SIZE_EXCEEDED);
wfProfileOut(__METHOD__);
return $status;
}
$flags = EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY | ($new ? EDIT_NEW : EDIT_UPDATE) | ($this->minoredit && !$this->isNew ? EDIT_MINOR : 0) | ($bot ? EDIT_FORCE_BOT : 0);
$doEditStatus = $this->mArticle->doEditContent($content, $this->summary, $flags, false, null, $content->getDefaultFormat());
if (!$doEditStatus->isOK()) {
// Failure from doEdit()
// Show the edit conflict page for certain recognized errors from doEdit(),
// but don't show it for errors from extension hooks
$errors = $doEditStatus->getErrorsArray();
if (in_array($errors[0][0], array('edit-gone-missing', 'edit-conflict', 'edit-already-exists'))) {
$this->isConflict = true;
// Destroys data doEdit() put in $status->value but who cares
$doEditStatus->value = self::AS_END;
}
wfProfileOut(__METHOD__);
return $doEditStatus;
}
$result['nullEdit'] = $doEditStatus->hasMessage('edit-no-change');
if ($result['nullEdit']) {
// We don't know if it was a null edit until now, so increment here
$wgUser->pingLimiter('linkpurge');
}
$result['redirect'] = $content->isRedirect();
$this->updateWatchlist();
wfProfileOut(__METHOD__);
return $status;
}
/**
* Utility method to save wikitext of an article
*/
public static function saveWikitext($title, $wikitext, $comment)
{
$saved = false;
$article = new Article($title);
$content = ContentHandler::makeContent($wikitext, $title);
$saved = $article->doEditContent($content, $comment);
if (!$saved) {
return 'Unable to save wikitext for article: ' . $title->getText();
} else {
return '';
}
}
