* Global functions used everywhere
*/
-/**
- * Some globals and requires needed
- */
-
-/** Total number of articles */
-$wgNumberOfArticles = -1; # Unset
-
-/** Total number of views */
-$wgTotalViews = -1;
-
-/** Total number of edits */
-$wgTotalEdits = -1;
-
-
require_once dirname(__FILE__) . '/LogPage.php';
require_once dirname(__FILE__) . '/normal/UtfNormalUtil.php';
require_once dirname(__FILE__) . '/XmlFunctions.php';
}
}
+/**
+ * Like array_diff( $a, $b ) except that it works with two-dimensional arrays.
+ */
+function wfArrayDiff2( $a, $b ) {
+ return array_udiff( $a, $b, 'wfArrayDiff2_cmp' );
+}
+function wfArrayDiff2_cmp( $a, $b ) {
+ if ( !is_array( $a ) ) {
+ return strcmp( $a, $b );
+ } elseif ( count( $a ) !== count( $b ) ) {
+ return count( $a ) < count( $b ) ? -1 : 1;
+ } else {
+ reset( $a );
+ reset( $b );
+ while( ( list( $keyA, $valueA ) = each( $a ) ) && ( list( $keyB, $valueB ) = each( $b ) ) ) {
+ $cmp = strcmp( $valueA, $valueB );
+ if ( $cmp !== 0 ) {
+ return $cmp;
+ }
+ }
+ return 0;
+ }
+}
/**
* Wrapper for clone(), for compatibility with PHP4-friendly extensions.
return clone( $object );
}
-/**
- * Where as we got a random seed
- */
-$wgRandomSeeded = false;
-
/**
* Seed Mersenne Twister
* No-op for compatibility; only necessary in PHP < 4.2.0
*/
function wfLogProfilingData() {
global $wgRequestTime, $wgDebugLogFile, $wgDebugRawPage, $wgRequest;
- global $wgProfiling, $wgUser;
- if ( $wgProfiling ) {
- $now = wfTime();
- $elapsed = $now - $wgRequestTime;
- $prof = wfGetProfilingOutput( $wgRequestTime, $elapsed );
- $forward = '';
- if( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) )
- $forward = ' forwarded for ' . $_SERVER['HTTP_X_FORWARDED_FOR'];
- if( !empty( $_SERVER['HTTP_CLIENT_IP'] ) )
- $forward .= ' client IP ' . $_SERVER['HTTP_CLIENT_IP'];
- if( !empty( $_SERVER['HTTP_FROM'] ) )
- $forward .= ' from ' . $_SERVER['HTTP_FROM'];
- if( $forward )
- $forward = "\t(proxied via {$_SERVER['REMOTE_ADDR']}{$forward})";
- // Don't unstub $wgUser at this late stage just for statistics purposes
- if( StubObject::isRealObject($wgUser) && $wgUser->isAnon() )
- $forward .= ' anon';
- $log = sprintf( "%s\t%04.3f\t%s\n",
- gmdate( 'YmdHis' ), $elapsed,
- urldecode( $wgRequest->getRequestURL() . $forward ) );
- if ( '' != $wgDebugLogFile && ( $wgRequest->getVal('action') != 'raw' || $wgDebugRawPage ) ) {
- wfErrorLog( $log . $prof, $wgDebugLogFile );
- }
+ global $wgProfiler, $wgUser;
+ if ( !isset( $wgProfiler ) )
+ return;
+
+ $now = wfTime();
+ $elapsed = $now - $wgRequestTime;
+ $prof = wfGetProfilingOutput( $wgRequestTime, $elapsed );
+ $forward = '';
+ if( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) )
+ $forward = ' forwarded for ' . $_SERVER['HTTP_X_FORWARDED_FOR'];
+ if( !empty( $_SERVER['HTTP_CLIENT_IP'] ) )
+ $forward .= ' client IP ' . $_SERVER['HTTP_CLIENT_IP'];
+ if( !empty( $_SERVER['HTTP_FROM'] ) )
+ $forward .= ' from ' . $_SERVER['HTTP_FROM'];
+ if( $forward )
+ $forward = "\t(proxied via {$_SERVER['REMOTE_ADDR']}{$forward})";
+ // Don't unstub $wgUser at this late stage just for statistics purposes
+ if( StubObject::isRealObject($wgUser) && $wgUser->isAnon() )
+ $forward .= ' anon';
+ $log = sprintf( "%s\t%04.3f\t%s\n",
+ gmdate( 'YmdHis' ), $elapsed,
+ urldecode( $wgRequest->getRequestURL() . $forward ) );
+ if ( '' != $wgDebugLogFile && ( $wgRequest->getVal('action') != 'raw' || $wgDebugRawPage ) ) {
+ wfErrorLog( $log . $prof, $wgDebugLogFile );
}
}
return (bool)$wgReadOnly;
}
+function wfReadOnlyReason() {
+ global $wgReadOnly;
+ wfReadOnly();
+ return $wgReadOnly;
+}
/**
* Get a message from anywhere, for the current user language.
* Use wfMsgForContent() instead if the message should NOT
* change depending on the user preferences.
*
- * Note that the message may contain HTML, and is therefore
- * not safe for insertion anywhere. Some functions such as
- * addWikiText will do the escaping for you. Use wfMsgHtml()
- * if you need an escaped message.
- *
* @param $key String: lookup key for the message, usually
* defined in languages/Language.php
- *
- * This function also takes extra optional parameters (not
- * shown in the function definition), which can by used to
+ *
+ * This function also takes extra optional parameters (not
+ * shown in the function definition), which can by used to
* insert variable text into the predefined message.
*/
function wfMsg( $key ) {
* @return String: the requested message.
*/
function wfMsgReal( $key, $args, $useDB = true, $forContent=false, $transform = true ) {
- $fname = 'wfMsgReal';
- wfProfileIn( $fname );
+ wfProfileIn( __METHOD__ );
$message = wfMsgGetKey( $key, $useDB, $forContent, $transform );
$message = wfMsgReplaceArgs( $message, $args );
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return $message;
}
* Fetch a message string value, but don't replace any keys yet.
* @param string $key
* @param bool $useDB
- * @param bool $forContent
+ * @param string $langcode Code of the language to get the message for, or
+ * behaves as a content language switch if it is a
+ * boolean.
* @return string
* @private
*/
-function wfMsgGetKey( $key, $useDB, $forContent = false, $transform = true ) {
+function wfMsgGetKey( $key, $useDB, $langCode = false, $transform = true ) {
global $wgParser, $wgContLang, $wgMessageCache, $wgLang;
- /* <Vyznev> btw, is all that code in wfMsgGetKey() that check
- * if the message cache exists of not really necessary, or is
- * it just paranoia?
- * <TimStarling> Vyznev: it's probably not necessary
- * <TimStarling> I think I wrote it in an attempt to report DB
- * connection errors properly
- * <TimStarling> but eventually we gave up on using the
- * message cache for that and just hard-coded the strings
- * <TimStarling> it may have other uses, it's not mere paranoia
- */
-
- if ( is_object( $wgMessageCache ) )
- $transstat = $wgMessageCache->getTransform();
-
+ # If $wgMessageCache isn't initialised yet, try to return something sensible.
if( is_object( $wgMessageCache ) ) {
- if ( ! $transform )
- $wgMessageCache->disableTransform();
- $message = $wgMessageCache->get( $key, $useDB, $forContent );
+ $message = $wgMessageCache->get( $key, $useDB, $langCode );
+ if ( $transform ) {
+ $message = $wgMessageCache->transform( $message );
+ }
} else {
- if( $forContent ) {
+ if( $langCode === true ) {
$lang = &$wgContLang;
- } else {
+ } elseif( $langCode === false ) {
$lang = &$wgLang;
+ } else {
+ $validCodes = array_keys( Language::getLanguageNames() );
+ if( in_array( $langCode, $validCodes ) ) {
+ # $langcode corresponds to a valid language.
+ $lang = Language::factory( $langCode );
+ } else {
+ # $langcode is a string, but not a valid language code; use content language.
+ $lang =& $wgContLang;
+ wfDebug( 'Invalid language code passed to wfMsgGetKey, falling back to content language.' );
+ }
}
# MessageCache::get() does this already, Language::getMessage() doesn't
# ISSUE: Should we try to handle "message/lang" here too?
$key = str_replace( ' ' , '_' , $wgContLang->lcfirst( $key ) );
- wfSuppressWarnings();
if( is_object( $lang ) ) {
$message = $lang->getMessage( $key );
} else {
$message = false;
}
- wfRestoreWarnings();
-
- if ( $transform && strstr( $message, '{{' ) !== false ) {
- $message = $wgParser->transformMsg($message, $wgMessageCache->getParserOptions() );
- }
}
- if ( is_object( $wgMessageCache ) && ! $transform )
- $wgMessageCache->setTransform( $transstat );
-
return $message;
}
// Replace arguments
if ( count( $args ) ) {
if ( is_array( $args[0] ) ) {
- foreach ( $args[0] as $key => $val ) {
- $message = str_replace( '$' . $key, $val, $message );
- }
- } else {
- foreach( $args as $n => $param ) {
- $replacementKeys['$' . ($n + 1)] = $param;
- }
- $message = strtr( $message, $replacementKeys );
+ $args = array_values( $args[0] );
}
+ $replacementKeys = array();
+ foreach( $args as $n => $param ) {
+ $replacementKeys['$' . ($n + 1)] = $param;
+ }
+ $message = strtr( $message, $replacementKeys );
}
return $message;
* @param array $options Processing rules:
* <i>parse</i>: parses wikitext to html
* <i>parseinline</i>: parses wikitext to html and removes the surrounding p's added by parser or tidy
- * <i>escape</i>: filters message trough htmlspecialchars
+ * <i>escape</i>: filters message through htmlspecialchars
+ * <i>escapenoentities</i>: same, but allows entity references like through
* <i>replaceafter</i>: parameters are substituted after parsing or escaping
* <i>parsemag</i>: transform the message using magic phrases
+ * <i>content</i>: fetch message for content language instead of interface
+ * <i>language</i>: language code to fetch message for (overriden by <i>content</i>), its behaviour
+ * with parser, parseinline and parsemag is undefined.
+ * Behavior for conflicting options (e.g., parse+parseinline) is undefined.
*/
function wfMsgExt( $key, $options ) {
global $wgOut, $wgParser;
$options = array($options);
}
- $string = wfMsgGetKey( $key, true, false, false );
+ if( in_array('content', $options) ) {
+ $forContent = true;
+ $langCode = true;
+ } elseif( array_key_exists('language', $options) ) {
+ $forContent = false;
+ $langCode = $options['language'];
+ $validCodes = array_keys( Language::getLanguageNames() );
+ if( !in_array($options['language'], $validCodes) ) {
+ $langCode = false;
+ }
+ } else {
+ $forContent = false;
+ $langCode = false;
+ }
+
+ $string = wfMsgGetKey( $key, /*DB*/true, $langCode, /*Transform*/false );
if( !in_array('replaceafter', $options) ) {
$string = wfMsgReplaceArgs( $string, $args );
}
if( in_array('parse', $options) ) {
- $string = $wgOut->parse( $string, true, true );
+ $string = $wgOut->parse( $string, true, !$forContent );
} elseif ( in_array('parseinline', $options) ) {
- $string = $wgOut->parse( $string, true, true );
+ $string = $wgOut->parse( $string, true, !$forContent );
$m = array();
- if( preg_match( '/^<p>(.*)\n?<\/p>$/sU', $string, $m ) ) {
+ if( preg_match( '/^<p>(.*)\n?<\/p>\n?$/sU', $string, $m ) ) {
$string = $m[1];
}
} elseif ( in_array('parsemag', $options) ) {
global $wgMessageCache;
if ( isset( $wgMessageCache ) ) {
- $string = $wgMessageCache->transform( $string );
+ $string = $wgMessageCache->transform( $string, !$forContent );
}
}
if ( in_array('escape', $options) ) {
$string = htmlspecialchars ( $string );
+ } elseif ( in_array( 'escapenoentities', $options ) ) {
+ $string = htmlspecialchars( $string );
+ $string = str_replace( '&', '&', $string );
+ $string = Sanitizer::normalizeCharReferences( $string );
}
if( in_array('replaceafter', $options) ) {
* @deprecated Please return control to the caller or throw an exception
*/
function wfAbruptExit( $error = false ){
- global $wgLoadBalancer;
static $called = false;
if ( $called ){
exit( -1 );
wfLogProfilingData();
if ( !$error ) {
- $wgLoadBalancer->closeAll();
+ wfGetLB()->closeAll();
}
exit( -1 );
}
}
/**
- * Throw a debugging exception. This function previously once exited the process,
+ * Throw a debugging exception. This function previously once exited the process,
* but now throws an exception instead, with similar results.
*
* @param string $msg Message shown when dieing.
* @return string
*/
function wfReportTime() {
- global $wgRequestTime;
+ global $wgRequestTime, $wgShowHostnames;
$now = wfTime();
$elapsed = $now - $wgRequestTime;
- $com = sprintf( "<!-- Served by %s in %01.3f secs. -->",
- wfHostname(), $elapsed );
- return $com;
+ return $wgShowHostnames
+ ? sprintf( "<!-- Served by %s in %01.3f secs. -->", wfHostname(), $elapsed )
+ : sprintf( "<!-- Served in %01.3f secs. -->", $elapsed );
}
/**
* @param $deflimit Default limit if none supplied
* @param $optionname Name of a user preference to check against
* @return array
- *
+ *
*/
function wfCheckLimits( $deflimit = 50, $optionname = 'rclimit' ) {
global $wgRequest;
*/
function wfEscapeWikiText( $text ) {
$text = str_replace(
- array( '[', '|', '\'', 'ISBN ', 'RFC ', '://', "\n=", '{{' ),
- array( '[', '|', ''', 'ISBN ', 'RFC ', '://', "\n=", '{{' ),
+ array( '[', '|', ']', '\'', 'ISBN ', 'RFC ', '://', "\n=", '{{' ),
+ array( '[', '|', ']', ''', 'ISBN ', 'RFC ', '://', "\n=", '{{' ),
htmlspecialchars($text) );
return $text;
}
return $url;
}
+/**
+ * Expand a potentially local URL to a fully-qualified URL.
+ * Assumes $wgServer is correct. :)
+ * @param string $url, either fully-qualified or a local path + query
+ * @return string Fully-qualified URL
+ */
+function wfExpandUrl( $url ) {
+ if( substr( $url, 0, 1 ) == '/' ) {
+ global $wgServer;
+ return $wgServer . $url;
+ } else {
+ return $url;
+ }
+}
+
/**
* This is obsolete, use SquidUpdate::purge()
* @deprecated
global $wgOut, $parserMemc;
$fname = 'wfGetCachedNotice';
wfProfileIn( $fname );
-
+
$needParse = false;
-
+
if( $name === 'default' ) {
// special case
global $wgSiteNotice;
return( false );
}
}
-
+
$cachedNotice = $parserMemc->get( wfMemcKey( $name ) );
if( is_array( $cachedNotice ) ) {
if( md5( $notice ) == $cachedNotice['hash'] ) {
} else {
$needParse = true;
}
-
+
if( $needParse ) {
if( is_object( $wgOut ) ) {
$parsed = $wgOut->parse( $notice );
$notice = '';
}
}
-
+
wfProfileOut( $fname );
return $notice;
}
function wfGetNamespaceNotice() {
global $wgTitle;
-
+
# Paranoia
if ( !isset( $wgTitle ) || !is_object( $wgTitle ) )
return "";
$fname = 'wfGetNamespaceNotice';
wfProfileIn( $fname );
-
+
$key = "namespacenotice-" . $wgTitle->getNsText();
$namespaceNotice = wfGetCachedNotice( $key );
if ( $namespaceNotice && substr ( $namespaceNotice , 0 ,7 ) != "<p><" ) {
global $wgUser, $wgSiteNotice;
$fname = 'wfGetSiteNotice';
wfProfileIn( $fname );
- $siteNotice = '';
-
+ $siteNotice = '';
+
if( wfRunHooks( 'SiteNoticeBefore', array( &$siteNotice ) ) ) {
if( is_object( $wgUser ) && $wgUser->isLoggedIn() ) {
$siteNotice = wfGetCachedNotice( 'sitenotice' );
return $siteNotice;
}
-/**
+/**
* BC wrapper for MimeMagic::singleton()
* @deprecated
*/
/**
* Increment a statistics counter
*/
- function wfIncrStats( $key ) {
- global $wgMemc;
- $key = wfMemcKey( 'stats', $key );
- if ( is_null( $wgMemc->incr( $key ) ) ) {
- $wgMemc->add( $key, 1 );
- }
- }
+function wfIncrStats( $key ) {
+ global $wgStatsMethod;
+
+ if( $wgStatsMethod == 'udp' ) {
+ global $wgUDPProfilerHost, $wgUDPProfilerPort, $wgDBname;
+ static $socket;
+ if (!$socket) {
+ $socket=socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+ $statline="stats/{$wgDBname} - 1 1 1 1 1 -total\n";
+ socket_sendto($socket,$statline,strlen($statline),0,$wgUDPProfilerHost,$wgUDPProfilerPort);
+ }
+ $statline="stats/{$wgDBname} - 1 1 1 1 1 {$key}\n";
+ @socket_sendto($socket,$statline,strlen($statline),0,$wgUDPProfilerHost,$wgUDPProfilerPort);
+ } elseif( $wgStatsMethod == 'cache' ) {
+ global $wgMemc;
+ $key = wfMemcKey( 'stats', $key );
+ if ( is_null( $wgMemc->incr( $key ) ) ) {
+ $wgMemc->add( $key, 1 );
+ }
+ } else {
+ // Disabled
+ }
+}
/**
* @param mixed $nr The number to format
}
}
+/**
+ * Safety wrapper around ini_get() for boolean settings.
+ * The values returned from ini_get() are pre-normalized for settings
+ * set via php.ini or php_flag/php_admin_flag... but *not*
+ * for those set via php_value/php_admin_value.
+ *
+ * It's fairly common for people to use php_value instead of php_flag,
+ * which can leave you with an 'off' setting giving a false positive
+ * for code that just takes the ini_get() return value as a boolean.
+ *
+ * To make things extra interesting, setting via php_value accepts
+ * "true" and "yes" as true, but php.ini and php_flag consider them false. :)
+ * Unrecognized values go false... again opposite PHP's own coercion
+ * from string to bool.
+ *
+ * Luckily, 'properly' set settings will always come back as '0' or '1',
+ * so we only have to worry about them and the 'improper' settings.
+ *
+ * I frickin' hate PHP... :P
+ *
+ * @param string $setting
+ * @return bool
+ */
+function wfIniGetBool( $setting ) {
+ $val = ini_get( $setting );
+ // 'on' and 'true' can't have whitespace around them, but '1' can.
+ return strtolower( $val ) == 'on'
+ || strtolower( $val ) == 'true'
+ || strtolower( $val ) == 'yes'
+ || preg_match( "/^\s*[+-]?0*[1-9]/", $val ); // approx C atoi() function
+}
+
/**
* Execute a shell command, with time and memory limits mirrored from the PHP
* configuration if supported.
*/
function wfShellExec( $cmd, &$retval=null ) {
global $IP, $wgMaxShellMemory, $wgMaxShellFileSize;
-
- if( ini_get( 'safe_mode' ) ) {
+
+ if( wfIniGetBool( 'safe_mode' ) ) {
wfDebug( "wfShellExec can't run in safe_mode, PHP's exec functions are too broken.\n" );
$retval = 1;
return "Unable to run external programs in safe mode.";
$cmd = '"' . $cmd . '"';
}
wfDebug( "wfShellExec: $cmd\n" );
-
- $output = array();
+
$retval = 1; // error by default?
- exec( $cmd, $output, $retval ); // returns the last line of output.
- return implode( "\n", $output );
-
+ ob_start();
+ passthru( $cmd, $retval );
+ $output = ob_get_contents();
+ ob_end_clean();
+ return $output;
+
}
/**
*
* PHP's basename() only considers '\' a pathchar on Windows and Netware.
* We'll consider it so always, as we don't want \s in our Unix paths either.
- *
+ *
* @param string $path
+ * @param string $suffix to remove if present
* @return string
*/
-function wfBaseName( $path ) {
+function wfBaseName( $path, $suffix='' ) {
+ $encSuffix = ($suffix == '')
+ ? ''
+ : ( '(?:' . preg_quote( $suffix, '#' ) . ')?' );
$matches = array();
- if( preg_match( '#([^/\\\\]*)[/\\\\]*$#', $path, $matches ) ) {
+ if( preg_match( "#([^/\\\\]*?){$encSuffix}[/\\\\]*$#", $path, $matches ) ) {
return $matches[1];
} else {
return '';
// Normalize mixed input on Windows...
$path = str_replace( '/', DIRECTORY_SEPARATOR, $path );
$from = str_replace( '/', DIRECTORY_SEPARATOR, $from );
-
+
+ // Trim trailing slashes -- fix for drive root
+ $path = rtrim( $path, DIRECTORY_SEPARATOR );
+ $from = rtrim( $from, DIRECTORY_SEPARATOR );
+
$pieces = explode( DIRECTORY_SEPARATOR, dirname( $path ) );
$against = explode( DIRECTORY_SEPARATOR, $from );
+ if( $pieces[0] !== $against[0] ) {
+ // Non-matching Windows drive letters?
+ // Return a full path.
+ return $path;
+ }
+
// Trim off common prefix
while( count( $pieces ) && count( $against )
&& $pieces[0] == $against[0] ) {
return implode( DIRECTORY_SEPARATOR, $pieces );
}
+/**
+ * array_merge() does awful things with "numeric" indexes, including
+ * string indexes when happen to look like integers. When we want
+ * to merge arrays with arbitrary string indexes, we don't want our
+ * arrays to be randomly corrupted just because some of them consist
+ * of numbers.
+ *
+ * Fuck you, PHP. Fuck you in the ear!
+ *
+ * @param array $array1, [$array2, [...]]
+ * @return array
+ */
+function wfArrayMerge( $array1/* ... */ ) {
+ $out = $array1;
+ for( $i = 1; $i < func_num_args(); $i++ ) {
+ foreach( func_get_arg( $i ) as $key => $value ) {
+ $out[$key] = $value;
+ }
+ }
+ return $out;
+}
+
/**
* Make a URL index, appropriate for the el_index field of externallinks.
*/
function wfMakeUrlIndex( $url ) {
global $wgUrlProtocols; // Allow all protocols defined in DefaultSettings/LocalSettings.php
- $bits = parse_url( $url );
wfSuppressWarnings();
+ $bits = parse_url( $url );
wfRestoreWarnings();
if ( !$bits ) {
return false;
$delimiter = ':';
// parse_url detects for news: and mailto: the host part of an url as path
// We have to correct this wrong detection
- if ( isset ( $bits['path'] ) ) {
+ if ( isset ( $bits['path'] ) ) {
$bits['host'] = $bits['path'];
$bits['path'] = '';
}
// Reverse the labels in the hostname, convert to lower case
// For emails reverse domainpart only
if ( $bits['scheme'] == 'mailto' ) {
- $mailparts = explode( '@', $bits['host'] );
- $domainpart = strtolower( implode( '.', array_reverse( explode( '.', $mailparts[1] ) ) ) );
+ $mailparts = explode( '@', $bits['host'], 2 );
+ if ( count($mailparts) === 2 ) {
+ $domainpart = strtolower( implode( '.', array_reverse( explode( '.', $mailparts[1] ) ) ) );
+ } else {
+ // No domain specified, don't mangle it
+ $domainpart = '';
+ }
$reversedHost = $domainpart . '@' . $mailparts[0];
} else {
$reversedHost = strtolower( implode( '.', array_reverse( explode( '.', $bits['host'] ) ) ) );
}
// Add an extra dot to the end
+ // Why? Is it in wrong place in mailto links?
if ( substr( $reversedHost, -1, 1 ) !== '.' ) {
$reversedHost .= '.';
}
$digitChars = ( $lowercase ) ? '0123456789abcdefghijklmnopqrstuvwxyz' : '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$inDigits = array();
$outChars = '';
-
+
// Decode and validate input string
$input = strtolower( $input );
for( $i = 0; $i < strlen( $input ); $i++ ) {
}
$inDigits[] = $n;
}
-
+
// Iterate over the input, modulo-ing out an output digit
// at a time until input is gone.
while( count( $inDigits ) ) {
$work = 0;
$workDigits = array();
-
+
// Long division...
foreach( $inDigits as $digit ) {
$work *= $sourceBase;
$work += $digit;
-
+
if( $work < $destBase ) {
// Gonna need to pull another digit.
if( count( $workDigits ) ) {
} else {
// Finally! Actual division!
$workDigits[] = intval( $work / $destBase );
-
+
// Isn't it annoying that most programming languages
// don't have a single divide-and-remainder operator,
// even though the CPU implements it that way?
$work = $work % $destBase;
}
}
-
+
// All that division leaves us with a remainder,
// which is conveniently our next output digit.
$outChars .= $digitChars[$work];
-
+
// And we continue!
$inDigits = $workDigits;
}
-
+
while( strlen( $outChars ) < $pad ) {
$outChars .= '0';
}
-
+
return strrev( $outChars );
}
/**
* Aliases for modularized functions
*/
-function wfGetHTTP( $url, $timeout = 'default' ) {
- return Http::get( $url, $timeout );
+function wfGetHTTP( $url, $timeout = 'default' ) {
+ return Http::get( $url, $timeout );
}
-function wfIsLocalURL( $url ) {
- return Http::isLocalURL( $url );
+function wfIsLocalURL( $url ) {
+ return Http::isLocalURL( $url );
+}
+
+function wfHttpOnlySafe() {
+ global $wgHttpOnlyBlacklist;
+ if( !version_compare("5.2", PHP_VERSION, "<") )
+ return false;
+
+ if( isset( $_SERVER['HTTP_USER_AGENT'] ) ) {
+ foreach( $wgHttpOnlyBlacklist as $regex ) {
+ if( preg_match( $regex, $_SERVER['HTTP_USER_AGENT'] ) ) {
+ return false;
+ }
+ }
+ }
+
+ return true;
}
/**
* Initialise php session
*/
function wfSetupSession() {
- global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain, $wgCookieSecure;
+ global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain, $wgCookieSecure, $wgCookieHttpOnly;
if( $wgSessionsInMemcached ) {
require_once( 'MemcachedSessions.php' );
} elseif( 'files' != ini_get( 'session.save_handler' ) ) {
# application, it will end up failing. Try to recover.
ini_set ( 'session.save_handler', 'files' );
}
- session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain, $wgCookieSecure);
+ $httpOnlySafe = wfHttpOnlySafe();
+ wfDebugLog( 'cookie',
+ 'session_set_cookie_params: "' . implode( '", "',
+ array(
+ 0,
+ $wgCookiePath,
+ $wgCookieDomain,
+ $wgCookieSecure,
+ $httpOnlySafe && $wgCookieHttpOnly ) ) . '"' );
+ if( $httpOnlySafe && $wgCookieHttpOnly ) {
+ session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain, $wgCookieSecure, $wgCookieHttpOnly );
+ } else {
+ // PHP 5.1 throws warnings if you pass the HttpOnly parameter for 5.2.
+ session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain, $wgCookieSecure );
+ }
session_cache_limiter( 'private, must-revalidate' );
- @session_start();
+ wfSuppressWarnings();
+ session_start();
+ wfRestoreWarnings();
}
/**
function wfGetCaller( $level = 2 ) {
$backtrace = wfDebugBacktrace();
if ( isset( $backtrace[$level] ) ) {
- if ( isset( $backtrace[$level]['class'] ) ) {
- $caller = $backtrace[$level]['class'] . '::' . $backtrace[$level]['function'];
- } else {
- $caller = $backtrace[$level]['function'];
- }
+ return wfFormatStackFrame($backtrace[$level]);
} else {
$caller = 'unknown';
}
/** Return a string consisting all callers in stack, somewhat useful sometimes for profiling specific points */
function wfGetAllCallers() {
- return implode('/', array_map(
- create_function('$frame','
- return isset( $frame["class"] )?
- $frame["class"]."::".$frame["function"]:
- $frame["function"];
- '),
- array_reverse(wfDebugBacktrace())));
+ return implode('/', array_map('wfFormatStackFrame',array_reverse(wfDebugBacktrace())));
+}
+
+/** Return a string representation of frame */
+function wfFormatStackFrame($frame) {
+ return isset( $frame["class"] )?
+ $frame["class"]."::".$frame["function"]:
+ $frame["function"];
}
/**
* Get a cache key
*/
function wfMemcKey( /*... */ ) {
- global $wgDBprefix, $wgDBname;
$args = func_get_args();
- if ( $wgDBprefix ) {
- $key = "$wgDBname-$wgDBprefix:" . implode( ':', $args );
- } else {
- $key = $wgDBname . ':' . implode( ':', $args );
- }
+ $key = wfWikiID() . ':' . implode( ':', $args );
return $key;
}
* Get an ASCII string identifying this wiki
* This is used as a prefix in memcached keys
*/
-function wfWikiID() {
- global $wgDBprefix, $wgDBname;
- if ( $wgDBprefix ) {
- return "$wgDBname-$wgDBprefix";
+function wfWikiID( $db = null ) {
+ if( $db instanceof Database ) {
+ return $db->getWikiID();
} else {
- return $wgDBname;
+ global $wgDBprefix, $wgDBname;
+ if ( $wgDBprefix ) {
+ return "$wgDBname-$wgDBprefix";
+ } else {
+ return $wgDBname;
+ }
+ }
+}
+
+/**
+ * Split a wiki ID into DB name and table prefix
+ */
+function wfSplitWikiID( $wiki ) {
+ $bits = explode( '-', $wiki, 2 );
+ if ( count( $bits ) < 2 ) {
+ $bits[] = '';
}
+ return $bits;
}
/*
* Get a Database object
- * @param integer $db Index of the connection to get. May be DB_MASTER for the
- * master (for write queries), DB_SLAVE for potentially lagged
+ * @param integer $db Index of the connection to get. May be DB_MASTER for the
+ * master (for write queries), DB_SLAVE for potentially lagged
* read queries, or an integer >= 0 for a particular server.
*
- * @param mixed $groups Query groups. An array of group names that this query
- * belongs to. May contain a single string if the query is only
+ * @param mixed $groups Query groups. An array of group names that this query
+ * belongs to. May contain a single string if the query is only
* in one group.
+ *
+ * @param string $wiki The wiki ID, or false for the current wiki
+ */
+function &wfGetDB( $db = DB_LAST, $groups = array(), $wiki = false ) {
+ return wfGetLB( $wiki )->getConnection( $db, $groups, $wiki );
+}
+
+/**
+ * Get a load balancer object.
+ *
+ * @param array $groups List of query groups
+ * @param string $wiki Wiki ID, or false for the current wiki
+ * @return LoadBalancer
+ */
+function wfGetLB( $wiki = false ) {
+ return wfGetLBFactory()->getMainLB( $wiki );
+}
+
+/**
+ * Get the load balancer factory object
*/
-function &wfGetDB( $db = DB_LAST, $groups = array() ) {
- global $wgLoadBalancer;
- $ret = $wgLoadBalancer->getConnection( $db, true, $groups );
- return $ret;
+function &wfGetLBFactory() {
+ return LBFactory::singleton();
}
/**
- * Find a file.
+ * Find a file.
* Shortcut for RepoGroup::singleton()->findFile()
* @param mixed $title Title object or string. May be interwiki.
- * @param mixed $time Requested time for an archived image, or false for the
- * current version. An image object will be returned which
- * existed at or before the specified time.
+ * @param mixed $time Requested time for an archived image, or false for the
+ * current version. An image object will be returned which
+ * was created at the specified time.
+ * @param mixed $flags FileRepo::FIND_ flags
* @return File, or false if the file does not exist
*/
-function wfFindFile( $title, $time = false ) {
- return RepoGroup::singleton()->findFile( $title, $time );
+function wfFindFile( $title, $time = false, $flags = 0 ) {
+ return RepoGroup::singleton()->findFile( $title, $time, $flags );
}
/**
return RepoGroup::singleton()->getLocalRepo()->newFile( $title );
}
+/**
+ * Should low-performance queries be disabled?
+ *
+ * @return bool
+ */
function wfQueriesMustScale() {
global $wgMiserMode;
- // If $wgMiserMode is true, all queries must be efficient
- if( $wgMiserMode )
- return true;
- // Try to roughly guess how large this wiki is.
- // Useful for figuring out if a query that doesn't scale should be avoided
- // or if job queue should be used
- $dbr = wfGetDB( DB_SLAVE );
- $stats = $dbr->selectRow('site_stats',
- array('ss_total_pages AS pages','ss_total_edits as edits','ss_users AS users'),
- array(),
- __METHOD__);
- if( $stats->pages > 100000 && $stats->edits > 1000000 && $stats->users > 10000 ) {
- return true;
- } else {
- return false;
- }
+ return $wgMiserMode
+ || ( SiteStats::pages() > 100000
+ && SiteStats::edits() > 1000000
+ && SiteStats::users() > 10000 );
}
/**
function wfScript( $script = 'index' ) {
global $wgScriptPath, $wgScriptExtension;
return "{$wgScriptPath}/{$script}{$wgScriptExtension}";
-}
\ No newline at end of file
+}
+
+/**
+ * Convenience function converts boolean values into "true"
+ * or "false" (string) values
+ *
+ * @param bool $value
+ * @return string
+ */
+function wfBoolToStr( $value ) {
+ return $value ? 'true' : 'false';
+}
+
+/**
+ * Load an extension messages file
+ *
+ * @param string $extensionName Name of extension to load messages from\for.
+ * @param string $langcode Language to load messages for, or false for default
+ * behvaiour (en, content language and user language).
+ */
+function wfLoadExtensionMessages( $extensionName, $langcode = false ) {
+ global $wgExtensionMessagesFiles, $wgMessageCache, $wgLang, $wgContLang;
+
+ #For recording whether extension message files have been loaded in a given language.
+ static $loaded = array();
+
+ if( !array_key_exists( $extensionName, $loaded ) ) {
+ $loaded[$extensionName] = array();
+ }
+
+ if( !$langcode && !array_key_exists( '*', $loaded[$extensionName] ) ) {
+ # Just do en, content language and user language.
+ $wgMessageCache->loadMessagesFile( $wgExtensionMessagesFiles[$extensionName], false );
+ # Mark that they have been loaded.
+ $loaded[$extensionName]['en'] = true;
+ $loaded[$extensionName][$wgLang->getCode()] = true;
+ $loaded[$extensionName][$wgContLang->getCode()] = true;
+ # Mark that this part has been done to avoid weird if statements.
+ $loaded[$extensionName]['*'] = true;
+ } elseif( is_string( $langcode ) && !array_key_exists( $langcode, $loaded[$extensionName] ) ) {
+ # Load messages for specified language.
+ $wgMessageCache->loadMessagesFile( $wgExtensionMessagesFiles[$extensionName], $langcode );
+ # Mark that they have been loaded.
+ $loaded[$extensionName][$langcode] = true;
+ }
+}
+
+/**
+ * Get a platform-independent path to the null file, e.g.
+ * /dev/null
+ *
+ * @return string
+ */
+function wfGetNull() {
+ return wfIsWindows()
+ ? 'NUL'
+ : '/dev/null';
+}
+
+/**
+ * Displays a maxlag error
+ *
+ * @param string $host Server that lags the most
+ * @param int $lag Maxlag (actual)
+ * @param int $maxLag Maxlag (requested)
+ */
+function wfMaxlagError( $host, $lag, $maxLag ) {
+ global $wgShowHostnames;
+ header( 'HTTP/1.1 503 Service Unavailable' );
+ header( 'Retry-After: ' . max( intval( $maxLag ), 5 ) );
+ header( 'X-Database-Lag: ' . intval( $lag ) );
+ header( 'Content-Type: text/plain' );
+ if( $wgShowHostnames ) {
+ echo "Waiting for $host: $lag seconds lagged\n";
+ } else {
+ echo "Waiting for a database server: $lag seconds lagged\n";
+ }
+}
+
+/**
+ * Throws an E_USER_NOTICE saying that $function is deprecated
+ * @param string $function
+ * @return null
+ */
+function wfDeprecated( $function ) {
+ global $wgDebugLogFile;
+ if ( !$wgDebugLogFile ) {
+ return;
+ }
+ $callers = wfDebugBacktrace();
+ if( isset( $callers[2] ) ){
+ $callerfunc = $callers[2];
+ $callerfile = $callers[1];
+ if( isset( $callerfile['file'] ) && isset( $callerfile['line'] ) ){
+ $file = $callerfile['file'] . ' at line ' . $callerfile['line'];
+ } else {
+ $file = '(internal function)';
+ }
+ $func = '';
+ if( isset( $callerfunc['class'] ) )
+ $func .= $callerfunc['class'] . '::';
+ $func .= @$callerfunc['function'];
+ $msg = "Use of $function is deprecated. Called from $func in $file";
+ } else {
+ $msg = "Use of $function is deprecated.";
+ }
+ wfDebug( "$msg\n" );
+}
+
+/**
+ * Sleep until the worst slave's replication lag is less than or equal to
+ * $maxLag, in seconds. Use this when updating very large numbers of rows, as
+ * in maintenance scripts, to avoid causing too much lag. Of course, this is
+ * a no-op if there are no slaves.
+ *
+ * Every time the function has to wait for a slave, it will print a message to
+ * that effect (and then sleep for a little while), so it's probably not best
+ * to use this outside maintenance scripts in its present form.
+ *
+ * @param int $maxLag
+ * @return null
+ */
+function wfWaitForSlaves( $maxLag ) {
+ if( $maxLag ) {
+ $lb = wfGetLB();
+ list( $host, $lag ) = $lb->getMaxLag();
+ while( $lag > $maxLag ) {
+ $name = @gethostbyaddr( $host );
+ if( $name !== false ) {
+ $host = $name;
+ }
+ print "Waiting for $host (lagged $lag seconds)...\n";
+ sleep($maxLag);
+ list( $host, $lag ) = $lb->getMaxLag();
+ }
+ }
+}
+
+/** Generate a random 32-character hexadecimal token.
+ * @param mixed $salt Some sort of salt, if necessary, to add to random characters before hashing.
+ */
+ function wfGenerateToken( $salt = '' ) {
+ $salt = serialize($salt);
+
+ return md5( mt_rand( 0, 0x7fffffff ) . $salt );
+}