<?php
-# See deferred.doc
+/**
+ * See deferred.txt
+ * @package MediaWiki
+ */
+/**
+ *
+ * @package MediaWiki
+ */
class SquidUpdate {
- var $urlArr;
+ var $urlArr, $mMaxTitles;
- function SquidUpdate( $urlArr = Array() ) {
+ function SquidUpdate( $urlArr = Array(), $maxTitles = false ) {
+ global $wgMaxSquidPurgeTitles;
+ if ( $maxTitles === false ) {
+ $this->mMaxTitles = $wgMaxSquidPurgeTitles;
+ } else {
+ $this->mMaxTitles = $maxTitles;
+ }
+ if ( count( $urlArr ) > $this->mMaxTitles ) {
+ $urlArr = array_slice( $urlArr, 0, $this->mMaxTitles );
+ }
$this->urlArr = $urlArr;
}
/* static */ function newFromLinksTo( &$title ) {
+ $fname = 'SquidUpdate::newFromLinksTo';
+ wfProfileIn( $fname );
+
# Get a list of URLs linking to this page
$id = $title->getArticleID();
- $sql = "SELECT cur_namespace,cur_title FROM links,cur WHERE l_to={$id} and l_from=cur_id" ;
- $res = wfQuery ( $sql, DB_READ ) ;
+
+ $dbr =& wfGetDB( DB_SLAVE );
+ $links = $dbr->tableName( 'links' );
+ $page = $dbr->tableName( 'page' );
+
+ $res = $dbr->select( array( 'links', 'page' ),
+ array( 'page_namespace', 'page_title' ),
+ array(
+ 'pl_namespace' => $title->getNamespace(),
+ 'pl_title' => $title->getDbKey(),
+ 'pl_from=page_id' ),
+ $fname );
$blurlArr = $title->getSquidURLs();
- while ( $BL = wfFetchObject ( $res ) )
- {
- $tobj = Title::makeTitle( $BL->cur_namespace, $BL->cur_title ) ;
- $blurlArr[] = $tobj->getInternalURL();
+ if ( $dbr->numRows( $res ) <= $this->mMaxTitles ) {
+ while ( $BL = $dbr->fetchObject ( $res ) )
+ {
+ $tobj = Title::makeTitle( $BL->page_namespace, $BL->page_title ) ;
+ $blurlArr[] = $tobj->getInternalURL();
+ }
}
- wfFreeResult ( $res ) ;
+ $dbr->freeResult ( $res ) ;
+
+ wfProfileOut( $fname );
return new SquidUpdate( $blurlArr );
}
- /* static */ function newFromBrokenLinksTo( &$title ) {
- # Get a list of URLs linking to this (currently non-existent) page
- $encTitle = $title->getPrefixedDBkey();
- $sql = "SELECT cur_namespace,cur_title FROM brokenlinks,cur WHERE bl_to={$encTitle} AND bl_from=cur_id";
- $res = wfQuery( $sql, DB_READ );
- $blurlArr = array();
- while ( $BL = wfFetchObject( $res ) )
- {
- $tobj = Title::makeTitle( $BL->cur_namespace, $BL->cur_title );
- $blurlArr[] = $tobj->getInternalURL();
+ /* static */ function newFromTitles( &$titles, $urlArr = array() ) {
+ foreach ( $titles as $title ) {
+ $urlArr[] = $title->getInternalURL();
}
- wfFreeResult( $res );
- return new SquidUpdate( $blurlArr );
+ return new SquidUpdate( $urlArr );
}
/* static */ function newSimplePurge( &$title ) {
XXX report broken Squids per mail or log */
/* static */ function purge( $urlArr ) {
- global $wgSquidServers;
+ global $wgSquidServers, $wgHTCPMulticastAddress, $wgHTCPPort;
- if ( $wgSquidServers == "echo" ) {
- echo implode("<br>\n", $urlArr);
+ if ( $wgSquidServers == 'echo' ) {
+ echo implode("<br />\n", $urlArr);
return;
}
+ if ( $wgHTCPMulticastAddress && $wgHTCPPort )
+ SquidUpdate::HTCPPurge( $urlArr );
+
+ $fname = 'SquidUpdate::purge';
+ wfProfileIn( $fname );
+
$maxsocketspersquid = 8; // socket cap per Squid
$urlspersocket = 400; // 400 seems to be a good tradeoff, opening a socket takes a while
$firsturl = $urlArr[0];
/* first socket for this server, do the tests */
@list($server, $port) = explode(':', $wgSquidServers[$ss]);
if(!isset($port)) $port = 80;
- $this->debug("Opening socket to $server:$port");
+ #$this->debug("Opening socket to $server:$port");
$socket = @fsockopen($server, $port, $error, $errstr, 3);
- $this->debug("\n");
+ #$this->debug("\n");
if (!$socket) {
$failed = true;
$totalsockets -= $sockspersq;
} else {
- $msg ="PURGE " . $firsturl . " HTTP/1.0\r\n".
+ $msg = 'PURGE ' . $firsturl . " HTTP/1.0\r\n".
"Connection: Keep-Alive\r\n\r\n";
- $this->debug($msg);
+ #$this->debug($msg);
@fputs($socket,$msg);
- $this->debug("...");
+ #$this->debug("...");
$res = @fread($socket,512);
- $this->debug("\n");
+ #$this->debug("\n");
/* Squid only returns http headers with 200 or 404 status,
if there's more returned something's wrong */
if (strlen($res) > 250) {
}
}
$urindex = $r + $urlspersocket * ($s - $sockspersq * floor($s / $sockspersq));
- $msg = "PURGE " . $urlArr[$urindex] . " HTTP/1.0\r\n".
+ $msg = 'PURGE ' . $urlArr[$urindex] . " HTTP/1.0\r\n".
"Connection: Keep-Alive\r\n\r\n";
- $this->debug($msg);
+ #$this->debug($msg);
@fputs($sockets[$s],$msg);
- $this->debug("\n");
+ #$this->debug("\n");
}
}
}
- $this->debug("Reading response...");
+ #$this->debug("Reading response...");
foreach ($sockets as $socket) {
$res = '';
$esc = 0;
@fclose($socket);
}
- $this->debug("\n");
+ #$this->debug("\n");
+ wfProfileOut( $fname );
+ }
+
+ /* static */ function HTCPPurge( $urlArr ) {
+ global $wgHTCPMulticastAddress, $wgHTCPMulticastTTL, $wgHTCPPort;
+ $fname = 'SquidUpdate::HTCPPurge';
+ wfProfileIn( $fname );
+
+ $htcpOpCLR = 4; // HTCP CLR
+
+ // FIXME PHP doesn't support these socket constants (include/linux/in.h)
+ define( "IPPROTO_IP", 0 );
+ define( "IP_MULTICAST_LOOP", 34 );
+ define( "IP_MULTICAST_TTL", 33 );
+
+ // pfsockopen doesn't work because we need set_sock_opt
+ $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
+ if ( $conn ) {
+ // Set socket options
+ socket_set_option( $conn, IPPROTO_IP, IP_MULTICAST_LOOP, 0 );
+ if ( $wgHTCPMulticastTTL != 1 )
+ socket_set_option( $conn, IPPROTO_IP, IP_MULTICAST_TTL,
+ $wgHTCPMulticastTTL );
+
+ foreach ( $urlArr as $url ) {
+ // Construct a minimal HTCP request diagram
+ // as per RFC 2756
+ // Opcode 'CLR', no response desired, no auth
+ $htcpTransID = rand();
+
+ $htcpSpecifier = pack( 'na4na*na8n',
+ 4, 'NONE', strlen( $url ), $url,
+ 8, 'HTTP/1.0', 0 );
+
+ $htcpDataLen = 8 + 2 + strlen( $htcpSpecifier );
+ $htcpLen = 4 + $htcpDataLen + 2;
+
+ // Note! Squid gets the bit order of the first
+ // word wrong, wrt the RFC. Apparently no other
+ // implementation exists, so adapt to Squid
+ $htcpPacket = pack( 'nxxnCxNxxa*n',
+ $htcpLen, $htcpDataLen, $htcpOpCLR,
+ $htcpTransID, $htcpSpecifier, 2);
+
+ // Send out
+ wfDebug( "Purging URL $url via HTCP\n" );
+ socket_sendto( $conn, $htcpPacket, $htcpLen, 0,
+ $wgHTCPMulticastAddress, $wgHTCPPort );
+ }
+ } else {
+ $errstr = socket_strerror( socket_last_error() );
+ wfDebug( "SquidUpdate::HTCPPurge(): Error opening UDP socket: $errstr\n" );
+ }
+ wfProfileOut( $fname );
}
function debug( $text ) {
dépôts / lhc / web / wiklou.git / blobdiff