globalfunctions.php
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PHP
2,006 行
} } return $retVal;}/** * wfMerge attempts to merge differences between three texts. * Returns true for a clean merge and false for failure or a conflict. */function wfMerge( $old, $mine, $yours, &$result ){ global $wgDiff3; # This check may also protect against code injection in # case of broken installations. if(! file_exists( $wgDiff3 ) ){ wfDebug( "diff3 not found\n" ); return false; } # Make temporary files $td = wfTempDir(); $oldtextFile = fopen( $oldtextName = tempnam( $td, 'merge-old-' ), 'w' ); $mytextFile = fopen( $mytextName = tempnam( $td, 'merge-mine-' ), 'w' ); $yourtextFile = fopen( $yourtextName = tempnam( $td, 'merge-your-' ), 'w' ); fwrite( $oldtextFile, $old ); fclose( $oldtextFile ); fwrite( $mytextFile, $mine ); fclose( $mytextFile ); fwrite( $yourtextFile, $yours ); fclose( $yourtextFile ); # Check for a conflict $cmd = $wgDiff3 . ' -a --overlap-only ' . wfEscapeShellArg( $mytextName ) . ' ' . wfEscapeShellArg( $oldtextName ) . ' ' . wfEscapeShellArg( $yourtextName ); $handle = popen( $cmd, 'r' ); if( fgets( $handle, 1024 ) ){ $conflict = true; } else { $conflict = false; } pclose( $handle ); # Merge differences $cmd = $wgDiff3 . ' -a -e --merge ' . wfEscapeShellArg( $mytextName, $oldtextName, $yourtextName ); $handle = popen( $cmd, 'r' ); $result = ''; do { $data = fread( $handle, 8192 ); if ( strlen( $data ) == 0 ) { break; } $result .= $data; } while ( true ); pclose( $handle ); unlink( $mytextName ); unlink( $oldtextName ); unlink( $yourtextName ); if ( $result === '' && $old !== '' && $conflict == false ) { wfDebug( "Unexpected null result from diff3. Command: $cmd\n" ); $conflict = true; } return ! $conflict;}/** * @todo document */function wfVarDump( $var ) { global $wgOut; $s = str_replace("\n","<br />\n", var_export( $var, true ) . "\n"); if ( headers_sent() || !@is_object( $wgOut ) ) { print $s; } else { $wgOut->addHTML( $s ); }}/** * Provide a simple HTTP error. */function wfHttpError( $code, $label, $desc ) { global $wgOut; $wgOut->disable(); header( "HTTP/1.0 $code $label" ); header( "Status: $code $label" ); $wgOut->sendCacheControl(); header( 'Content-type: text/html' ); print "<html><head><title>" . htmlspecialchars( $label ) . "</title></head><body><h1>" . htmlspecialchars( $label ) . "</h1><p>" . htmlspecialchars( $desc ) . "</p></body></html>\n";}/** * Converts an Accept-* header into an array mapping string values to quality * factors */function wfAcceptToPrefs( $accept, $def = '*/*' ) { # No arg means accept anything (per HTTP spec) if( !$accept ) { return array( $def => 1 ); } $prefs = array(); $parts = explode( ',', $accept ); foreach( $parts as $part ) { # FIXME: doesn't deal with params like 'text/html; level=1' @list( $value, $qpart ) = explode( ';', $part ); if( !isset( $qpart ) ) { $prefs[$value] = 1; } elseif( preg_match( '/q\s*=\s*(\d*\.\d+)/', $qpart, $match ) ) { $prefs[$value] = $match[1]; } } return $prefs;}/** * Checks if a given MIME type matches any of the keys in the given * array. Basic wildcards are accepted in the array keys. * * Returns the matching MIME type (or wildcard) if a match, otherwise * NULL if no match. * * @param string $type * @param array $avail * @return string * @private */function mimeTypeMatch( $type, $avail ) { if( array_key_exists($type, $avail) ) { return $type; } else { $parts = explode( '/', $type ); if( array_key_exists( $parts[0] . '/*', $avail ) ) { return $parts[0] . '/*'; } elseif( array_key_exists( '*/*', $avail ) ) { return '*/*'; } else { return NULL; } }}/** * Returns the 'best' match between a client's requested internet media types * and the server's list of available types. Each list should be an associative * array of type to preference (preference is a float between 0.0 and 1.0). * Wildcards in the types are acceptable. * * @param array $cprefs Client's acceptable type list * @param array $sprefs Server's offered types * @return string * * @todo FIXME: doesn't handle params like 'text/plain; charset=UTF-8' * XXX: generalize to negotiate other stuff */function wfNegotiateType( $cprefs, $sprefs ) { $combine = array(); foreach( array_keys($sprefs) as $type ) { $parts = explode( '/', $type ); if( $parts[1] != '*' ) { $ckey = mimeTypeMatch( $type, $cprefs ); if( $ckey ) { $combine[$type] = $sprefs[$type] * $cprefs[$ckey]; } } } foreach( array_keys( $cprefs ) as $type ) { $parts = explode( '/', $type ); if( $parts[1] != '*' && !array_key_exists( $type, $sprefs ) ) { $skey = mimeTypeMatch( $type, $sprefs ); if( $skey ) { $combine[$type] = $sprefs[$skey] * $cprefs[$type]; } } } $bestq = 0; $besttype = NULL; foreach( array_keys( $combine ) as $type ) { if( $combine[$type] > $bestq ) { $besttype = $type; $bestq = $combine[$type]; } } return $besttype;}/** * Array lookup * Returns an array where the values in the first array are replaced by the * values in the second array with the corresponding keys * * @return array */function wfArrayLookup( $a, $b ) { return array_flip( array_intersect( array_flip( $a ), array_keys( $b ) ) );}/** * Convenience function; returns MediaWiki timestamp for the present time. * @return string */function wfTimestampNow() { # return NOW return wfTimestamp( TS_MW, time() );}/** * Reference-counted warning suppression */function wfSuppressWarnings( $end = false ) { static $suppressCount = 0; static $originalLevel = false; if ( $end ) { if ( $suppressCount ) { --$suppressCount; if ( !$suppressCount ) { error_reporting( $originalLevel ); } } } else { if ( !$suppressCount ) { $originalLevel = error_reporting( E_ALL & ~( E_WARNING | E_NOTICE ) ); } ++$suppressCount; }}/** * Restore error level to previous value */function wfRestoreWarnings() { wfSuppressWarnings( true );}# Autodetect, convert and provide timestamps of various types/** * Unix time - the number of seconds since 1970-01-01 00:00:00 UTC */define('TS_UNIX', 0);/** * MediaWiki concatenated string timestamp (YYYYMMDDHHMMSS) */define('TS_MW', 1);/** * MySQL DATETIME (YYYY-MM-DD HH:MM:SS) */define('TS_DB', 2);/** * RFC 2822 format, for E-mail and HTTP headers */define('TS_RFC2822', 3);/** * ISO 8601 format with no timezone: 1986-02-09T20:00:00Z * * This is used by Special:Export */define('TS_ISO_8601', 4);/** * An Exif timestamp (YYYY:MM:DD HH:MM:SS) * * @url http://exif.org/Exif2-2.PDF The Exif 2.2 spec, see page 28 for the * DateTime tag and page 36 for the DateTimeOriginal and * DateTimeDigitized tags. */define('TS_EXIF', 5);/** * Oracle format time. */define('TS_ORACLE', 6);/** * @param mixed $outputtype A timestamp in one of the supported formats, the * function will autodetect which format is supplied * and act accordingly. * @return string Time in the format specified in $outputtype */function wfTimestamp($outputtype=TS_UNIX,$ts=0) { $uts = 0; $da = array(); if ($ts==0) { $uts=time(); } elseif (preg_match("/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)$/D",$ts,$da)) { # TS_DB $uts=gmmktime((int)$da[4],(int)$da[5],(int)$da[6], (int)$da[2],(int)$da[3],(int)$da[1]); } elseif (preg_match("/^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/D",$ts,$da)) { # TS_EXIF $uts=gmmktime((int)$da[4],(int)$da[5],(int)$da[6], (int)$da[2],(int)$da[3],(int)$da[1]); } elseif (preg_match("/^(\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)$/D",$ts,$da)) { # TS_MW $uts=gmmktime((int)$da[4],(int)$da[5],(int)$da[6], (int)$da[2],(int)$da[3],(int)$da[1]); } elseif (preg_match("/^(\d{1,13})$/D",$ts,$datearray)) { # TS_UNIX $uts = $ts; } elseif (preg_match('/^(\d{1,2})-(...)-(\d\d(\d\d)?) (\d\d)\.(\d\d)\.(\d\d)/', $ts, $da)) { # TS_ORACLE $uts = strtotime(preg_replace('/(\d\d)\.(\d\d)\.(\d\d)(\.(\d+))?/', "$1:$2:$3", str_replace("+00:00", "UTC", $ts))); } elseif (preg_match('/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})Z$/', $ts, $da)) { # TS_ISO_8601 $uts=gmmktime((int)$da[4],(int)$da[5],(int)$da[6], (int)$da[2],(int)$da[3],(int)$da[1]); } else { # Bogus value; fall back to the epoch... wfDebug("wfTimestamp() fed bogus time value: $outputtype; $ts\n"); $uts = 0; } switch($outputtype) { case TS_UNIX: return $uts; case TS_MW: return gmdate( 'YmdHis', $uts ); case TS_DB: return gmdate( 'Y-m-d H:i:s', $uts ); case TS_ISO_8601: return gmdate( 'Y-m-d\TH:i:s\Z', $uts ); // This shouldn't ever be used, but is included for completeness case TS_EXIF: return gmdate( 'Y:m:d H:i:s', $uts ); case TS_RFC2822: return gmdate( 'D, d M Y H:i:s', $uts ) . ' GMT'; case TS_ORACLE: return gmdate( 'd-M-y h.i.s A', $uts) . ' +00:00'; default: throw new MWException( 'wfTimestamp() called with illegal output type.'); }}/** * Return a formatted timestamp, or null if input is null. * For dealing with nullable timestamp columns in the database. * @param int $outputtype * @param string $ts * @return string */function wfTimestampOrNull( $outputtype = TS_UNIX, $ts = null ) { if( is_null( $ts ) ) { return null; } else { return wfTimestamp( $outputtype, $ts ); }}/** * Check if the operating system is Windows * * @return bool True if it's Windows, False otherwise. */function wfIsWindows() { if (substr(php_uname(), 0, 7) == 'Windows') { return true; } else { return false; }}/** * Swap two variables */function swap( &$x, &$y ) { $z = $x; $x = $y; $y = $z;}function wfGetCachedNotice( $name ) { global $wgOut, $parserMemc, $wgDBname; $fname = 'wfGetCachedNotice'; wfProfileIn( $fname ); $needParse = false; $notice = wfMsgForContent( $name ); if( $notice == '<'. $name . ';>' || $notice == '-' ) { wfProfileOut( $fname ); return( false ); } $cachedNotice = $parserMemc->get( $wgDBname . ':' . $name ); if( is_array( $cachedNotice ) ) { if( md5( $notice ) == $cachedNotice['hash'] ) { $notice = $cachedNotice['html']; } else { $needParse = true; } } else { $needParse = true; } if( $needParse ) { if( is_object( $wgOut ) ) { $parsed = $wgOut->parse( $notice ); $parserMemc->set( $wgDBname . ':' . $name, array( 'html' => $parsed, 'hash' => md5( $notice ) ), 600 ); $notice = $parsed; } else { wfDebug( 'wfGetCachedNotice called for ' . $name . ' with no $wgOut available' ); $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><" ) { $namespaceNotice = '<div id="namespacebanner">' . $namespaceNotice . "</div>"; } else { $namespaceNotice = ""; } wfProfileOut( $fname ); return $namespaceNotice;}function wfGetSiteNotice() { global $wgUser, $wgSiteNotice; $fname = 'wfGetSiteNotice'; wfProfileIn( $fname ); $siteNotice = ''; if( wfRunHooks( 'SiteNoticeBefore', array( &$siteNotice ) ) ) { if( is_object( $wgUser ) && $wgUser->isLoggedIn() ) { $siteNotice = wfGetCachedNotice( 'sitenotice' ); $siteNotice = !$siteNotice ? $wgSiteNotice : $siteNotice; } else { $anonNotice = wfGetCachedNotice( 'anonnotice' ); if( !$anonNotice ) { $siteNotice = wfGetCachedNotice( 'sitenotice' ); $siteNotice = !$siteNotice ? $wgSiteNotice : $siteNotice; } else { $siteNotice = $anonNotice; } } } wfRunHooks( 'SiteNoticeAfter', array( &$siteNotice ) ); wfProfileOut( $fname ); return $siteNotice;}/** Global singleton instance of MimeMagic. This is initialized on demand,* please always use the wfGetMimeMagic() function to get the instance.** @private*/$wgMimeMagic= NULL;/** Factory functions for the global MimeMagic object.* This function always returns the same singleton instance of MimeMagic.* That objects will be instantiated on the first call to this function.* If needed, the MimeMagic.php file is automatically included by this function.* @return MimeMagic the global MimeMagic objects.*/function &wfGetMimeMagic() { global $wgMimeMagic; if (!is_null($wgMimeMagic)) { return $wgMimeMagic; } if (!class_exists("MimeMagic")) { #include on demand require_once("MimeMagic.php"); }⌨️ 快捷键说明
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