X-Git-Url: https://scripts.mit.edu/gitweb/autoinstallsdev/mediawiki.git/blobdiff_plain/74c929b24b048c9f1e31e17db757ae4195cd7673..6932310fd58ebef145fa01eb76edf7150284d8ea:/includes/ProxyTools.php

diff --git a/includes/ProxyTools.php b/includes/ProxyTools.php
deleted file mode 100644
index 771fd577..00000000
--- a/includes/ProxyTools.php
+++ /dev/null
@@ -1,215 +0,0 @@
-<?php
-/**
- * Functions for dealing with proxies
- * @file
- */
-
-/**
- * Extracts the XFF string from the request header
- * Checks first for "X-Forwarded-For", then "Client-ip"
- * Note: headers are spoofable
- * @return string
- */
-function wfGetForwardedFor() {
-	if( function_exists( 'apache_request_headers' ) ) {
-		// More reliable than $_SERVER due to case and -/_ folding
-		$set = array ();
-		foreach ( apache_request_headers() as $tempName => $tempValue ) {
-			$set[ strtoupper( $tempName ) ] = $tempValue;
-		}
-		$index = strtoupper ( 'X-Forwarded-For' );
-		$index2 = strtoupper ( 'Client-ip' );
-	} else {
-		// Subject to spoofing with headers like X_Forwarded_For
-		$set = $_SERVER;
-		$index = 'HTTP_X_FORWARDED_FOR';
-		$index2 = 'CLIENT-IP';
-	}
-
-	#Try a couple of headers
-	if( isset( $set[$index] ) ) {
-		return $set[$index];
-	} else if( isset( $set[$index2] ) ) {
-		return $set[$index2];
-	} else {
-		return null;
-	}
-}
-
-/**
- * Returns the browser/OS data from the request header
- * Note: headers are spoofable
- * @return string
- */
-function wfGetAgent() {
-	if( function_exists( 'apache_request_headers' ) ) {
-		// More reliable than $_SERVER due to case and -/_ folding
-		$set = array ();
-		foreach ( apache_request_headers() as $tempName => $tempValue ) {
-			$set[ strtoupper( $tempName ) ] = $tempValue;
-		}
-		$index = strtoupper ( 'User-Agent' );
-	} else {
-		// Subject to spoofing with headers like X_Forwarded_For
-		$set = $_SERVER;
-		$index = 'HTTP_USER_AGENT';
-	}
-	if( isset( $set[$index] ) ) {
-		return $set[$index];
-	} else {
-		return '';
-	}
-}
-
-/**
- * Work out the IP address based on various globals
- * For trusted proxies, use the XFF client IP (first of the chain)
- * @return string
- */
-function wfGetIP() {
-	global $wgIP, $wgUsePrivateIPs;
-
-	# Return cached result
-	if ( !empty( $wgIP ) ) {
-		return $wgIP;
-	}
-
-	/* collect the originating ips */
-	# Client connecting to this webserver
-	if ( isset( $_SERVER['REMOTE_ADDR'] ) ) {
-		$ipchain = array( IP::canonicalize( $_SERVER['REMOTE_ADDR'] ) );
-	} else {
-		# Running on CLI?
-		$ipchain = array( '127.0.0.1' );
-	}
-	$ip = $ipchain[0];
-
-	# Append XFF on to $ipchain
-	$forwardedFor = wfGetForwardedFor();
-	if ( isset( $forwardedFor ) ) {
-		$xff = array_map( 'trim', explode( ',', $forwardedFor ) );
-		$xff = array_reverse( $xff );
-		$ipchain = array_merge( $ipchain, $xff );
-	}
-
-	# Step through XFF list and find the last address in the list which is a trusted server
-	# Set $ip to the IP address given by that trusted server, unless the address is not sensible (e.g. private)
-	foreach ( $ipchain as $i => $curIP ) {
-		$curIP = IP::canonicalize( $curIP );
-		if ( wfIsTrustedProxy( $curIP ) ) {
-			if ( isset( $ipchain[$i + 1] ) ) {
-				if( $wgUsePrivateIPs || IP::isPublic( $ipchain[$i + 1 ] ) ) {
-					$ip = $ipchain[$i + 1];
-				}
-			}
-		} else {
-			break;
-		}
-	}
-
-	wfDebug( "IP: $ip\n" );
-	$wgIP = $ip;
-	return $ip;
-}
-
-/**
- * Checks if an IP is a trusted proxy providor
- * Useful to tell if X-Fowarded-For data is possibly bogus
- * Squid cache servers for the site and AOL are whitelisted
- * @param string $ip
- * @return bool
- */
-function wfIsTrustedProxy( $ip ) {
-	global $wgSquidServers, $wgSquidServersNoPurge;
-
-	if ( in_array( $ip, $wgSquidServers ) ||
-		in_array( $ip, $wgSquidServersNoPurge )
-	) {
-		$trusted = true;
-	} else {
-		$trusted = false;
-	}
-	wfRunHooks( 'IsTrustedProxy', array( &$ip, &$trusted ) );
-	return $trusted;
-}
-
-/**
- * Forks processes to scan the originating IP for an open proxy server
- * MemCached can be used to skip IPs that have already been scanned
- */
-function wfProxyCheck() {
-	global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
-	global $wgMemc, $wgProxyMemcExpiry;
-	global $wgProxyKey;
-
-	if ( !$wgBlockOpenProxies ) {
-		return;
-	}
-
-	$ip = wfGetIP();
-
-	# Get MemCached key
-	$mcKey = wfMemcKey( 'proxy', 'ip', $ip );
-	$mcValue = $wgMemc->get( $mcKey );
-	$skip = (bool)$mcValue;
-
-	# Fork the processes
-	if ( !$skip ) {
-		$title = SpecialPage::getTitleFor( 'Blockme' );
-		$iphash = md5( $ip . $wgProxyKey );
-		$url = $title->getFullURL( 'ip='.$iphash );
-
-		foreach ( $wgProxyPorts as $port ) {
-			$params = implode( ' ', array(
-						escapeshellarg( $wgProxyScriptPath ),
-						escapeshellarg( $ip ),
-						escapeshellarg( $port ),
-						escapeshellarg( $url )
-						));
-			exec( "php $params &>/dev/null &" );
-		}
-		# Set MemCached key
-		$wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
-	}
-}
-
-/**
- * Convert a network specification in CIDR notation to an integer network and a number of bits
- * @return array(string, int)
- */
-function wfParseCIDR( $range ) {
-	return IP::parseCIDR( $range );
-}
-
-/**
- * Check if an IP address is in the local proxy list
- * @return bool
- */
-function wfIsLocallyBlockedProxy( $ip ) {
-	global $wgProxyList;
-	$fname = 'wfIsLocallyBlockedProxy';
-
-	if ( !$wgProxyList ) {
-		return false;
-	}
-	wfProfileIn( $fname );
-
-	if ( !is_array( $wgProxyList ) ) {
-		# Load from the specified file
-		$wgProxyList = array_map( 'trim', file( $wgProxyList ) );
-	}
-
-	if ( !is_array( $wgProxyList ) ) {
-		$ret = false;
-	} elseif ( array_search( $ip, $wgProxyList ) !== false ) {
-		$ret = true;
-	} elseif ( array_key_exists( $ip, $wgProxyList ) ) {
-		# Old-style flipped proxy list
-		$ret = true;
-	} else {
-		$ret = false;
-	}
-	wfProfileOut( $fname );
-	return $ret;
-}
-