コード例 #1
0
ファイル: EditPage.php プロジェクト: whysasse/kmwiki
 /**
  * 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 $status;
 }
コード例 #2
0
 /**
  * @dataProvider provideUserWasLastToEdit
  */
 public function testUserWasLastToEdit($sinceIdx, $expectedLast)
 {
     $userA = User::newFromName("RevisionStorageTest_userA");
     $userB = User::newFromName("RevisionStorageTest_userB");
     if ($userA->getId() === 0) {
         $userA = User::createNew($userA->getName());
     }
     if ($userB->getId() === 0) {
         $userB = User::createNew($userB->getName());
     }
     $ns = $this->getDefaultWikitextNS();
     $dbw = wfGetDB(DB_MASTER);
     $revisions = [];
     // create revisions -----------------------------
     $page = WikiPage::factory(Title::newFromText('RevisionStorageTest_testUserWasLastToEdit', $ns));
     $page->insertOn($dbw);
     # zero
     $revisions[0] = new Revision(['page' => $page->getId(), 'title' => $page->getTitle(), 'timestamp' => '20120101000000', 'user' => $userA->getId(), 'text' => 'zero', 'content_model' => CONTENT_MODEL_WIKITEXT, 'summary' => 'edit zero']);
     $revisions[0]->insertOn($dbw);
     # one
     $revisions[1] = new Revision(['page' => $page->getId(), 'title' => $page->getTitle(), 'timestamp' => '20120101000100', 'user' => $userA->getId(), 'text' => 'one', 'content_model' => CONTENT_MODEL_WIKITEXT, 'summary' => 'edit one']);
     $revisions[1]->insertOn($dbw);
     # two
     $revisions[2] = new Revision(['page' => $page->getId(), 'title' => $page->getTitle(), 'timestamp' => '20120101000200', 'user' => $userB->getId(), 'text' => 'two', 'content_model' => CONTENT_MODEL_WIKITEXT, 'summary' => 'edit two']);
     $revisions[2]->insertOn($dbw);
     # three
     $revisions[3] = new Revision(['page' => $page->getId(), 'title' => $page->getTitle(), 'timestamp' => '20120101000300', 'user' => $userA->getId(), 'text' => 'three', 'content_model' => CONTENT_MODEL_WIKITEXT, 'summary' => 'edit three']);
     $revisions[3]->insertOn($dbw);
     # four
     $revisions[4] = new Revision(['page' => $page->getId(), 'title' => $page->getTitle(), 'timestamp' => '20120101000200', 'user' => $userA->getId(), 'text' => 'zero', 'content_model' => CONTENT_MODEL_WIKITEXT, 'summary' => 'edit four']);
     $revisions[4]->insertOn($dbw);
     // test it ---------------------------------
     $since = $revisions[$sinceIdx]->getTimestamp();
     $wasLast = Revision::userWasLastToEdit($dbw, $page->getId(), $userA->getId(), $since);
     $this->assertEquals($expectedLast, $wasLast);
 }
コード例 #3
0
ファイル: EditPage.php プロジェクト: seedbank/old-repo
 /**
  * Attempt submission (no UI)
  *
  * @param $result
  * @param $bot bool
  *
  * @return Status object, possibly with a message, but always with one of the AS_* constants in $status->value,
  *
  * FIXME: This interface is TERRIBLE, but hard to get rid of due to various error display idiosyncrasies. There are
  * also lots of cases where error metadata is set in the object and retrieved later instead of being returned, e.g.
  * AS_CONTENT_TOO_BIG and AS_BLOCKED_PAGE_FOR_USER. All that stuff needs to be cleaned up some time.
  */
 function internalAttemptSave(&$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 $status;
     }
     # Check image redirect
     if ($this->mTitle->getNamespace() == NS_FILE && Title::newFromRedirect($this->textbox1) instanceof Title && !$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) {
         $match = self::matchSpamRegex($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 (wfReadOnly()) {
         $status->fatal('readonlytext');
         $status->value = self::AS_READ_ONLY_PAGE;
         wfProfileOut(__METHOD__ . '-checks');
         wfProfileOut(__METHOD__);
         return $status;
     }
     if ($wgUser->pingLimiter()) {
         $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')) {
             $status->fatal('nocreatetext');
             $status->value = self::AS_NO_CREATE_PERMISSION;
             wfDebug(__METHOD__ . ": no create permission\n");
             wfProfileOut(__METHOD__);
             return $status;
         }
         # Don't save a new article if it's blank.
         if ($this->textbox1 == '') {
             $status->setResult(false, self::AS_BLANK_ARTICLE);
             wfProfileOut(__METHOD__);
             return $status;
         }
         // Run post-section-merge edit filter
         if (!wfRunHooks('EditFilterMerged', array($this, $this->textbox1, &$this->hookError, $this->summary))) {
             # Error messages etc. could be handled within the hook...
             $status->fatal('hookaborted');
             $status->value = self::AS_HOOK_ERROR;
             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__);
             return $status;
         }
         $text = $this->textbox1;
         $result['sectionanchor'] = '';
         if ($this->section == 'new') {
             if ($this->sectiontitle !== '') {
                 // Insert the section title above the content.
                 $text = wfMessage('newsectionheaderdefaultlevel', $this->sectiontitle)->inContentLanguage()->text() . "\n\n" . $text;
                 // Jump to the new section
                 $result['sectionanchor'] = $wgParser->guessLegacySectionNameFromWikiText($this->sectiontitle);
                 // If no edit summary was specified, create one automatically from the section
                 // title and have it link to the new section. Otherwise, respect the summary as
                 // passed.
                 if ($this->summary === '') {
                     $cleanSectionTitle = $wgParser->stripSectionName($this->sectiontitle);
                     $this->summary = wfMessage('newsectionsummary')->rawParams($cleanSectionTitle)->inContentLanguage()->text();
                 }
             } elseif ($this->summary !== '') {
                 // Insert the section title above the content.
                 $text = wfMessage('newsectionheaderdefaultlevel', $this->summary)->inContentLanguage()->text() . "\n\n" . $text;
                 // Jump to the new section
                 $result['sectionanchor'] = $wgParser->guessLegacySectionNameFromWikiText($this->summary);
                 // Create a link to the new section from the edit summary.
                 $cleanSummary = $wgParser->stripSectionName($this->summary);
                 $this->summary = wfMessage('newsectionsummary')->rawParams($cleanSummary)->inContentLanguage()->text();
             }
         }
         $status->value = self::AS_SUCCESS_NEW_ARTICLE;
     } else {
         # Article exists. Check for edit conflict.
         $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->summary) {
                     // 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");
                 $this->isConflict = false;
             }
         }
         // If sectiontitle is set, use it, otherwise use the summary as the section title (for
         // backwards compatibility with old forms/bots).
         if ($this->sectiontitle !== '') {
             $sectionTitle = $this->sectiontitle;
         } else {
             $sectionTitle = $this->summary;
         }
         if ($this->isConflict) {
             wfDebug(__METHOD__ . ": conflict! getting section '{$this->section}' for time '{$this->edittime}' (article time '{$timestamp}')\n");
             $text = $this->mArticle->replaceSection($this->section, $this->textbox1, $sectionTitle, $this->edittime);
         } else {
             wfDebug(__METHOD__ . ": getting section '{$this->section}'\n");
             $text = $this->mArticle->replaceSection($this->section, $this->textbox1, $sectionTitle);
         }
         if (is_null($text)) {
             wfDebug(__METHOD__ . ": activating conflict; section replace failed.\n");
             $this->isConflict = true;
             $text = $this->textbox1;
             // do not try to merge here!
         } elseif ($this->isConflict) {
             # Attempt merge
             if ($this->mergeChangesInto($text)) {
                 // 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 = $text;
                 wfDebug(__METHOD__ . ": Keeping edit conflict, failed merge.\n");
             }
         }
         if ($this->isConflict) {
             $status->setResult(false, self::AS_CONFLICT_DETECTED);
             wfProfileOut(__METHOD__);
             return $status;
         }
         // Run post-section-merge edit filter
         if (!wfRunHooks('EditFilterMerged', array($this, $text, &$this->hookError, $this->summary))) {
             # Error messages etc. could be handled within the hook...
             $status->fatal('hookaborted');
             $status->value = self::AS_HOOK_ERROR;
             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__);
             return $status;
         }
         # Handle the user preference to force summaries here, but not for null edits
         if ($this->section != 'new' && !$this->allowBlankSummary && $this->getOriginalContent() != $text && !Title::newFromRedirect($text)) {
             if (md5($this->summary) == $this->autoSumm) {
                 $this->missingSummary = true;
                 $status->fatal('missingsummary');
                 $status->value = self::AS_SUMMARY_NEEDED;
                 wfProfileOut(__METHOD__);
                 return $status;
             }
         }
         # And a similar thing for new sections
         if ($this->section == 'new' && !$this->allowBlankSummary) {
             if (trim($this->summary) == '') {
                 $this->missingSummary = true;
                 $status->fatal('missingsummary');
                 // or 'missingcommentheader' if $section == 'new'. Blegh
                 $status->value = self::AS_SUMMARY_NEEDED;
                 wfProfileOut(__METHOD__);
                 return $status;
             }
         }
         # All's well
         wfProfileIn(__METHOD__ . '-sectionanchor');
         $sectionanchor = '';
         if ($this->section == 'new') {
             if ($this->textbox1 == '') {
                 $this->missingComment = true;
                 $status->fatal('missingcommenttext');
                 $status->value = self::AS_TEXTBOX_EMPTY;
                 wfProfileOut(__METHOD__ . '-sectionanchor');
                 wfProfileOut(__METHOD__);
                 return $status;
             }
             if ($this->sectiontitle !== '') {
                 $sectionanchor = $wgParser->guessLegacySectionNameFromWikiText($this->sectiontitle);
                 // If no edit summary was specified, create one automatically from the section
                 // title and have it link to the new section. Otherwise, respect the summary as
                 // passed.
                 if ($this->summary === '') {
                     $cleanSectionTitle = $wgParser->stripSectionName($this->sectiontitle);
                     $this->summary = wfMessage('newsectionsummary')->rawParams($cleanSectionTitle)->inContentLanguage()->text();
                 }
             } elseif ($this->summary !== '') {
                 $sectionanchor = $wgParser->guessLegacySectionNameFromWikiText($this->summary);
                 # This is a new section, so create a link to the new section
                 # in the revision summary.
                 $cleanSummary = $wgParser->stripSectionName($this->summary);
                 $this->summary = wfMessage('newsectionsummary')->rawParams($cleanSummary)->inContentLanguage()->text();
             }
         } 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 = $text;
         $this->section = '';
         $status->value = self::AS_SUCCESS_UPDATE;
     }
     // Check for length errors again now that the section is merged in
     $this->kblength = (int) (strlen($text) / 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 = $this->mArticle->doEdit($text, $this->summary, $flags);
     if ($doEditStatus->isOK()) {
         $result['redirect'] = Title::newFromRedirect($text) !== null;
         $this->commitWatch();
         wfProfileOut(__METHOD__);
         return $status;
     } else {
         // 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;
     }
 }