public function get($code, $key)
{
if (!isset($this->readers[$code])) {
$fileName = $this->getFileName($code);
$this->readers[$code] = false;
if (file_exists($fileName)) {
try {
$this->readers[$code] = Reader::open($fileName);
} catch (Exception $e) {
wfDebug(__METHOD__ . ": unable to open cdb file for reading\n");
}
}
}
if (!$this->readers[$code]) {
return null;
} else {
$value = false;
try {
$value = $this->readers[$code]->get($key);
} catch (Exception $e) {
wfDebug(__METHOD__ . ": \\Cdb\\Exception caught, error message was " . $e->getMessage() . "\n");
}
if ($value === false) {
return null;
}
return unserialize($value);
}
}
/**
* @since 0.1
*
* @param string $target
*/
public function __construct($target)
{
try {
$this->cdb = Reader::open($target);
} catch (Exception $e) {
// Do nothing
}
}
/**
* Ensure that password isn't in top X most popular passwords
*
* @param $policyVal int Cut off to use. Will automatically shrink to the max
* supported for error messages if set to more than max number of passwords on file,
* so you can use the PHP_INT_MAX constant here safely.
* @param $user User
* @param $password String
* @since 1.27
* @return Status
*/
public static function checkPopularPasswordBlacklist($policyVal, User $user, $password)
{
global $wgPopularPasswordFile, $wgSitename;
$status = Status::newGood();
if ($policyVal > 0) {
$langEn = Language::factory('en');
$passwordKey = $langEn->lc(trim($password));
// People often use the name of the current site, which won't be
// in the common password file. Also check '' for people who use
// just whitespace.
$sitename = $langEn->lc(trim($wgSitename));
$hardcodedCommonPasswords = array('', 'wiki', 'mediawiki', $sitename);
if (in_array($passwordKey, $hardcodedCommonPasswords)) {
$status->error('passwordtoopopular');
return $status;
}
// This could throw an exception, but there's not a good way
// of failing gracefully, if say the file is missing, so just
// let the exception fall through.
// Format of cdb file is mapping password => popularity rank.
// See maintenance/createCommonPasswordCdb.php
$db = CdbReader::open($wgPopularPasswordFile);
$res = $db->get($passwordKey);
if ($res && (int) $res <= $policyVal) {
// Note: If you want to find the true number of common
// passwords stored (for reporting the error), you have to take
// the max of the policyVal and $db->get( '_TOTALENTRIES' ).
$status->error('passwordtoopopular');
}
}
return $status;
}
/**
* Fetch all interwiki prefixes from interwiki cache
*
* @param null|string $local If not null, limits output to local/non-local interwikis
* @return array List of prefixes
* @since 1.19
*/
protected static function getAllPrefixesCached($local)
{
global $wgInterwikiCache, $wgInterwikiScopes, $wgInterwikiFallbackSite;
static $db, $site;
wfDebug(__METHOD__ . "()\n");
$data = array();
try {
if (!$db) {
$db = CdbReader::open($wgInterwikiCache);
}
/* Resolve site name */
if ($wgInterwikiScopes >= 3 && !$site) {
$site = $db->get('__sites:' . wfWikiID());
if ($site == '') {
$site = $wgInterwikiFallbackSite;
}
}
// List of interwiki sources
$sources = array();
// Global Level
if ($wgInterwikiScopes >= 2) {
$sources[] = '__global';
}
// Site level
if ($wgInterwikiScopes >= 3) {
$sources[] = '_' . $site;
}
$sources[] = wfWikiID();
foreach ($sources as $source) {
$list = $db->get("__list:{$source}");
foreach (explode(' ', $list) as $iw_prefix) {
$row = $db->get("{$source}:{$iw_prefix}");
if (!$row) {
continue;
}
list($iw_local, $iw_url) = explode(' ', $row);
if ($local !== null && $local != $iw_local) {
continue;
}
$data[$iw_prefix] = array('iw_prefix' => $iw_prefix, 'iw_url' => $iw_url, 'iw_local' => $iw_local);
}
}
} catch (CdbException $e) {
wfDebug(__METHOD__ . ": CdbException caught, error message was " . $e->getMessage());
}
ksort($data);
return array_values($data);
}
private function getCacheValue($key)
{
if ($this->cdbReader === null) {
if (is_string($this->cdbData)) {
$this->cdbReader = \Cdb\Reader::open($this->cdbData);
} elseif (is_array($this->cdbData)) {
$this->cdbReader = new \Cdb\Reader\Hash($this->cdbData);
} else {
$this->cdbReader = false;
}
}
if ($this->cdbReader) {
return $this->cdbReader->get($key);
} else {
return false;
}
}
$command = array_shift($args);
// process command
switch ($command) {
case 'help':
// show an help message
cdbShowHelp(array_shift($args));
break;
case 'load':
if (!isset($args[0])) {
print "Need a filename there buddy\n";
break;
}
$file = $args[0];
print "Loading cdb file {$file}...";
try {
$fileHandle = CdbReader::open($file);
} catch (CdbException $e) {
}
if (!$fileHandle) {
print "not a cdb file or unable to read it\n";
} else {
print "ok\n";
}
break;
case 'get':
if (!$fileHandle) {
print "Need to load a cdb file first\n";
break;
}
if (!isset($args[0])) {
print "Need to specify a key, Luke\n";
/**
* The main function
*/
function handleMissingWiki()
{
$projects = array('wikibooks' => 'b', 'wikinews' => 'n', 'wikipedia' => 'p', 'wikiquote' => 'q', 'wikisource' => 's', 'wikiversity' => 'v', 'wikivoyage' => 'y', 'wiktionary' => 't');
list($protocol, $host) = getProtocolAndHost();
if (strpos($host, '.m.') !== false) {
// Invalid request to mobile site, not rewritten by Varnish
showMobileError();
return;
}
# $language.$project.org
$tmp = explode('.', $host);
$project = $incubatorCode = false;
if (count($tmp) == 3) {
list($language, $project, $tld) = $tmp;
if (isset($_SERVER['PATH_INFO']) && preg_match('!^/(.*)$!', $_SERVER['PATH_INFO'], $m)) {
$page = $m[1];
} elseif (isset($_GET['title'])) {
$page = $_GET['title'];
# index.php?title=Page
} else {
$page = '';
# Main page
}
$incubatorCode = isset($projects[$project]) ? $projects[$project] : null;
}
if (!$incubatorCode) {
showGenericError();
return;
}
if (strpos($page, ':') !== false) {
# Open the interwiki file to see if we have an interwiki prefix
$db = null;
try {
$db = CdbReader::open(__DIR__ . '/interwiki.cdb');
} catch (CdbException $e) {
}
if ($db) {
$prefix = strtok($page, ':');
# Try looking for lateral links (w: q: voy: ...)
$row = $db->get("{$language}wiki:{$prefix}");
if (!$row) {
# Also try interlanguage links
$projectForCdb = $project === 'wikipedia' ? 'wiki' : $project;
$row = $db->get("_{$projectForCdb}:{$prefix}");
}
if ($row) {
list($iw_local, $iw_url) = explode(' ', $row);
if ($iw_local) {
# Redirect to the appropriate WMF wiki
# strtok gives us the remainder of the page title after the interwiki prefix
showRedirect($protocol . ':' . str_replace('$1', strtok(''), $iw_url));
return;
}
}
# We don't have an interwiki link, keep going and see what else we could have
}
}
if ($project === 'wikisource') {
# Wikisource should redirect to the multilingual wikisource
showRedirect($protocol . '://wikisource.org/wiki/' . $page);
} elseif ($project === 'wikiversity') {
# Wikiversity gives an error page
showMissingSubdomainError($project, $language);
} else {
# Redirect to incubator
$incubatorBase = 'incubator.wikimedia.org/wiki/';
$location = $protocol . '://' . $incubatorBase . 'W' . $incubatorCode . '/' . urlencode($language);
# Go to the page if specified (look out for slashes), otherwise go to
# the main page Wx/xyz?goto=mainpage (WikimediaIncubator extension takes care of that)
$location .= $page && $page !== '/' ? '/' . $page : '?goto=mainpage' . (isset($_GET['uselang']) ? '&uselang=' . urlencode($_GET['uselang']) : '');
showRedirect($location);
}
}
private static function getCacheValue($key)
{
global $wgInterwikiCache;
static $reader;
if ($reader === null) {
$reader = is_array($wgInterwikiCache) ? false : CdbReader::open($wgInterwikiCache);
}
if ($reader) {
return $reader->get($key);
} else {
return isset($wgInterwikiCache[$key]) ? $wgInterwikiCache[$key] : false;
}
}