/**
* This is based on part of HistoryBlobStub::getText().
* Determine if the text can be retrieved from the row in the normal way.
* @param $stub
* @param $secondaryRow
* @return bool
*/
function isUnbrokenStub($stub, $secondaryRow)
{
$flags = explode(',', $secondaryRow->old_flags);
$text = $secondaryRow->old_text;
if (in_array('external', $flags)) {
$url = $text;
@(list(, $path) = explode('://', $url, 2));
if ($path == "") {
return false;
}
$text = ExternalStore::fetchFromUrl($url);
}
if (!in_array('object', $flags)) {
return false;
}
if (in_array('gzip', $flags)) {
$obj = unserialize(gzinflate($text));
} else {
$obj = unserialize($text);
}
if (!is_object($obj)) {
// Correct for old double-serialization bug.
$obj = unserialize($obj);
}
if (!is_object($obj)) {
return false;
}
$obj->uncompress();
$text = $obj->getItem($stub['hash']);
return $text !== false;
}
<?php
/**
* Script tests fetching revision texts from external clusters
*
* @package MediaWiki
* @addtopackage maintenance
*
* @author Władysław Bodzek
*/
ini_set("include_path", dirname(__FILE__) . "/../../../maintenance/");
$optionsWithArgs = array();
require_once "commandLine.inc";
$urls = array("DB://archive1/191", "DB://archive1/211", "DB://archive1/1910000000000");
foreach ($urls as $url) {
$data = ExternalStore::fetchFromUrl($url);
$text = gzinflate($data);
var_dump($url, $data, $text);
}
/**
* @return string
*/
function getText()
{
$fname = 'HistoryBlobStub::getText';
if (isset(self::$blobCache[$this->mOldId])) {
$obj = self::$blobCache[$this->mOldId];
} else {
$dbr = wfGetDB(DB_SLAVE);
$row = $dbr->selectRow('text', array('old_flags', 'old_text'), array('old_id' => $this->mOldId));
if (!$row) {
return false;
}
$flags = explode(',', $row->old_flags);
if (in_array('external', $flags)) {
$url = $row->old_text;
$parts = explode('://', $url, 2);
if (!isset($parts[1]) || $parts[1] == '') {
wfProfileOut($fname);
return false;
}
$row->old_text = ExternalStore::fetchFromUrl($url);
}
if (!in_array('object', $flags)) {
return false;
}
if (in_array('gzip', $flags)) {
// This shouldn't happen, but a bug in the compress script
// may at times gzip-compress a HistoryBlob object row.
$obj = unserialize(gzinflate($row->old_text));
} else {
$obj = unserialize($row->old_text);
}
if (!is_object($obj)) {
// Correct for old double-serialization bug.
$obj = unserialize($obj);
}
if (!is_object($obj)) {
return false;
}
// Save this item for reference; if pulling many
// items in a row we'll likely use it again.
$obj->uncompress();
self::$blobCache = array($this->mOldId => $obj);
}
return $obj->getItem($this->mHash);
}
/**
* @brief Gets old article's text
*
* @desc Returns article's content from text table if fail it'll return empty string
*
* @param integer $textId article's text id in text table
*
* @return string
* @author Andrzej 'nAndy' Åukaszewski
*/
public function getDeletedArticleTitleTxt($textId)
{
$dbr = wfGetDB(DB_SLAVE);
$row = $dbr->selectRow('text', array('old_text', 'old_flags'), array('old_id' => $textId), __METHOD__);
if (!empty($row->old_text) && !empty($row->old_flags)) {
$flags = explode(',', $row->old_flags);
if (in_array('gzip', $flags)) {
return gzinflate(ExternalStore::fetchFromUrl($row->old_text));
}
}
return '';
}
