8adc7befe5
This also keeps the old HttpRequest class name around, so it should not break backwards compatability.
1043 lines
26 KiB
PHP
1043 lines
26 KiB
PHP
<?php
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/**
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* @defgroup HTTP HTTP
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*/
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/**
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* Various HTTP related functions
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* @ingroup HTTP
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*/
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class Http {
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static $httpEngine = false;
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/**
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* Perform an HTTP request
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*
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* @param $method String: HTTP method. Usually GET/POST
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* @param $url String: full URL to act on
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* @param $options Array: options to pass to MWHttpRequest object.
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* Possible keys for the array:
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* - timeout Timeout length in seconds
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* - postData An array of key-value pairs or a url-encoded form data
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* - proxy The proxy to use.
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* Will use $wgHTTPProxy (if set) otherwise.
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* - noProxy Override $wgHTTPProxy (if set) and don't use any proxy at all.
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* - sslVerifyHost (curl only) Verify hostname against certificate
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* - sslVerifyCert (curl only) Verify SSL certificate
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* - caInfo (curl only) Provide CA information
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* - maxRedirects Maximum number of redirects to follow (defaults to 5)
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* - followRedirects Whether to follow redirects (defaults to false).
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* Note: this should only be used when the target URL is trusted,
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* to avoid attacks on intranet services accessible by HTTP.
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* @return Mixed: (bool)false on failure or a string on success
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*/
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public static function request( $method, $url, $options = array() ) {
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$url = wfExpandUrl( $url );
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wfDebug( "HTTP: $method: $url\n" );
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$options['method'] = strtoupper( $method );
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if ( !isset( $options['timeout'] ) ) {
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$options['timeout'] = 'default';
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}
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$req = MWHttpRequest::factory( $url, $options );
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$status = $req->execute();
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if ( $status->isOK() ) {
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return $req->getContent();
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} else {
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return false;
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}
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}
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/**
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* Simple wrapper for Http::request( 'GET' )
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* @see Http::request()
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*/
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public static function get( $url, $timeout = 'default', $options = array() ) {
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$options['timeout'] = $timeout;
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return Http::request( 'GET', $url, $options );
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}
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/**
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* Simple wrapper for Http::request( 'POST' )
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* @see Http::request()
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*/
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public static function post( $url, $options = array() ) {
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return Http::request( 'POST', $url, $options );
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}
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/**
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* Check if the URL can be served by localhost
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*
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* @param $url String: full url to check
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* @return Boolean
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*/
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public static function isLocalURL( $url ) {
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global $wgCommandLineMode, $wgConf;
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if ( $wgCommandLineMode ) {
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return false;
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}
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// Extract host part
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$matches = array();
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if ( preg_match( '!^http://([\w.-]+)[/:].*$!', $url, $matches ) ) {
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$host = $matches[1];
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// Split up dotwise
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$domainParts = explode( '.', $host );
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// Check if this domain or any superdomain is listed in $wgConf as a local virtual host
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$domainParts = array_reverse( $domainParts );
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for ( $i = 0; $i < count( $domainParts ); $i++ ) {
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$domainPart = $domainParts[$i];
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if ( $i == 0 ) {
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$domain = $domainPart;
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} else {
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$domain = $domainPart . '.' . $domain;
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}
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if ( $wgConf->isLocalVHost( $domain ) ) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* A standard user-agent we can use for external requests.
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* @return String
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*/
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public static function userAgent() {
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global $wgVersion;
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return "MediaWiki/$wgVersion";
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}
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/**
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* Checks that the given URI is a valid one
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*
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* @param $uri Mixed: URI to check for validity
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* @returns Boolean
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*/
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public static function isValidURI( $uri ) {
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return preg_match(
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'/(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/',
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$uri,
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$matches
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);
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}
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}
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/**
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* This wrapper class will call out to curl (if available) or fallback
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* to regular PHP if necessary for handling internal HTTP requests.
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*
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* Renamed from HttpRequest to MWHttpRequst to avoid conflict with
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* php's HTTP extension.
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*/
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class MWHttpRequest {
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protected $content;
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protected $timeout = 'default';
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protected $headersOnly = null;
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protected $postData = null;
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protected $proxy = null;
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protected $noProxy = false;
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protected $sslVerifyHost = true;
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protected $sslVerifyCert = true;
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protected $caInfo = null;
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protected $method = "GET";
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protected $reqHeaders = array();
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protected $url;
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protected $parsedUrl;
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protected $callback;
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protected $maxRedirects = 5;
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protected $followRedirects = false;
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protected $cookieJar;
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protected $headerList = array();
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protected $respVersion = "0.9";
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protected $respStatus = "200 Ok";
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protected $respHeaders = array();
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public $status;
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/**
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* @param $url String: url to use
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* @param $options Array: (optional) extra params to pass (see Http::request())
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*/
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function __construct( $url, $options = array() ) {
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global $wgHTTPTimeout;
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$this->url = $url;
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$this->parsedUrl = parse_url( $url );
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if ( !Http::isValidURI( $this->url ) ) {
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$this->status = Status::newFatal( 'http-invalid-url' );
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} else {
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$this->status = Status::newGood( 100 ); // continue
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}
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if ( isset( $options['timeout'] ) && $options['timeout'] != 'default' ) {
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$this->timeout = $options['timeout'];
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} else {
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$this->timeout = $wgHTTPTimeout;
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}
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$members = array( "postData", "proxy", "noProxy", "sslVerifyHost", "caInfo",
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"method", "followRedirects", "maxRedirects", "sslVerifyCert" );
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foreach ( $members as $o ) {
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if ( isset( $options[$o] ) ) {
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$this->$o = $options[$o];
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}
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}
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}
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/**
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* Generate a new request object
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* @see MWHttpRequest::__construct
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*/
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public static function factory( $url, $options = null ) {
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if ( !Http::$httpEngine ) {
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Http::$httpEngine = function_exists( 'curl_init' ) ? 'curl' : 'php';
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} elseif ( Http::$httpEngine == 'curl' && !function_exists( 'curl_init' ) ) {
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throw new MWException( __METHOD__ . ': curl (http://php.net/curl) is not installed, but' .
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' Http::$httpEngine is set to "curl"' );
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}
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switch( Http::$httpEngine ) {
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case 'curl':
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return new CurlHttpRequest( $url, $options );
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case 'php':
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if ( !wfIniGetBool( 'allow_url_fopen' ) ) {
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throw new MWException( __METHOD__ . ': allow_url_fopen needs to be enabled for pure PHP' .
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' http requests to work. If possible, curl should be used instead. See http://php.net/curl.' );
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}
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return new PhpHttpRequest( $url, $options );
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default:
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throw new MWException( __METHOD__ . ': The setting of Http::$httpEngine is not valid.' );
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}
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}
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/**
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* Get the body, or content, of the response to the request
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*
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* @return String
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*/
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public function getContent() {
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return $this->content;
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}
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/**
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* Set the parameters of the request
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* @param $args Array
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* @todo overload the args param
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*/
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public function setData( $args ) {
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$this->postData = $args;
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}
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/**
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* Take care of setting up the proxy
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* (override in subclass)
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*
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* @return String
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*/
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public function proxySetup() {
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global $wgHTTPProxy;
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if ( $this->proxy ) {
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return;
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}
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if ( Http::isLocalURL( $this->url ) ) {
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$this->proxy = 'http://localhost:80/';
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} elseif ( $wgHTTPProxy ) {
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$this->proxy = $wgHTTPProxy ;
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} elseif ( getenv( "http_proxy" ) ) {
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$this->proxy = getenv( "http_proxy" );
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}
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}
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/**
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* Set the refererer header
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*/
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public function setReferer( $url ) {
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$this->setHeader( 'Referer', $url );
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}
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/**
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* Set the user agent
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*/
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public function setUserAgent( $UA ) {
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$this->setHeader( 'User-Agent', $UA );
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}
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/**
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* Set an arbitrary header
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*/
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public function setHeader( $name, $value ) {
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// I feel like I should normalize the case here...
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$this->reqHeaders[$name] = $value;
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}
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/**
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* Get an array of the headers
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*/
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public function getHeaderList() {
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$list = array();
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if ( $this->cookieJar ) {
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$this->reqHeaders['Cookie'] =
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$this->cookieJar->serializeToHttpRequest(
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$this->parsedUrl['path'],
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$this->parsedUrl['host']
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);
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}
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foreach ( $this->reqHeaders as $name => $value ) {
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$list[] = "$name: $value";
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}
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return $list;
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}
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/**
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* Set the callback
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*
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* @param $callback Callback
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*/
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public function setCallback( $callback ) {
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$this->callback = $callback;
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}
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/**
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* A generic callback to read the body of the response from a remote
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* server.
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*
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* @param $fh handle
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* @param $content String
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*/
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public function read( $fh, $content ) {
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$this->content .= $content;
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return strlen( $content );
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}
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/**
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* Take care of whatever is necessary to perform the URI request.
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*
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* @return Status
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*/
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public function execute() {
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global $wgTitle;
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$this->content = "";
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if ( strtoupper( $this->method ) == "HEAD" ) {
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$this->headersOnly = true;
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}
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if ( is_array( $this->postData ) ) {
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$this->postData = wfArrayToCGI( $this->postData );
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}
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if ( is_object( $wgTitle ) && !isset( $this->reqHeaders['Referer'] ) ) {
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$this->setReferer( $wgTitle->getFullURL() );
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}
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if ( !$this->noProxy ) {
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$this->proxySetup();
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}
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if ( !$this->callback ) {
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$this->setCallback( array( $this, 'read' ) );
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}
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if ( !isset( $this->reqHeaders['User-Agent'] ) ) {
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$this->setUserAgent( Http::userAgent() );
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}
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}
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/**
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* Parses the headers, including the HTTP status code and any
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* Set-Cookie headers. This function expectes the headers to be
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* found in an array in the member variable headerList.
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*
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* @return nothing
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*/
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protected function parseHeader() {
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$lastname = "";
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foreach ( $this->headerList as $header ) {
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if ( preg_match( "#^HTTP/([0-9.]+) (.*)#", $header, $match ) ) {
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$this->respVersion = $match[1];
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$this->respStatus = $match[2];
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} elseif ( preg_match( "#^[ \t]#", $header ) ) {
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$last = count( $this->respHeaders[$lastname] ) - 1;
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$this->respHeaders[$lastname][$last] .= "\r\n$header";
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} elseif ( preg_match( "#^([^:]*):[\t ]*(.*)#", $header, $match ) ) {
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$this->respHeaders[strtolower( $match[1] )][] = $match[2];
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$lastname = strtolower( $match[1] );
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}
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}
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$this->parseCookies();
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}
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/**
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* Sets HTTPRequest status member to a fatal value with the error
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* message if the returned integer value of the status code was
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* not successful (< 300) or a redirect (>=300 and < 400). (see
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* RFC2616, section 10,
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* http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html for a
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* list of status codes.)
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*
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* @return nothing
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*/
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protected function setStatus() {
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if ( !$this->respHeaders ) {
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$this->parseHeader();
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}
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if ( (int)$this->respStatus > 399 ) {
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list( $code, $message ) = explode( " ", $this->respStatus, 2 );
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$this->status->fatal( "http-bad-status", $code, $message );
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}
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}
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/**
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* Get the integer value of the HTTP status code (e.g. 200 for "200 Ok")
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* (see RFC2616, section 10, http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
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* for a list of status codes.)
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*
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* @return Integer
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*/
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public function getStatus() {
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if ( !$this->respHeaders ) {
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$this->parseHeader();
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}
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return (int)$this->respStatus;
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}
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/**
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* Returns true if the last status code was a redirect.
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*
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* @return Boolean
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*/
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public function isRedirect() {
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if ( !$this->respHeaders ) {
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$this->parseHeader();
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}
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$status = (int)$this->respStatus;
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if ( $status >= 300 && $status <= 303 ) {
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return true;
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}
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return false;
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}
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/**
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* Returns an associative array of response headers after the
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* request has been executed. Because some headers
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* (e.g. Set-Cookie) can appear more than once the, each value of
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* the associative array is an array of the values given.
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*
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* @return Array
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*/
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public function getResponseHeaders() {
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if ( !$this->respHeaders ) {
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$this->parseHeader();
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}
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return $this->respHeaders;
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}
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/**
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* Returns the value of the given response header.
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*
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* @param $header String
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* @return String
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*/
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public function getResponseHeader( $header ) {
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if ( !$this->respHeaders ) {
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$this->parseHeader();
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}
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if ( isset( $this->respHeaders[strtolower ( $header ) ] ) ) {
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$v = $this->respHeaders[strtolower ( $header ) ];
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return $v[count( $v ) - 1];
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}
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return null;
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}
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/**
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* Tells the MWHttpRequest object to use this pre-loaded CookieJar.
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*
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* @param $jar CookieJar
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*/
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public function setCookieJar( $jar ) {
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$this->cookieJar = $jar;
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}
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/**
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* Returns the cookie jar in use.
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*
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* @returns CookieJar
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*/
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public function getCookieJar() {
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if ( !$this->respHeaders ) {
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$this->parseHeader();
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}
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return $this->cookieJar;
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}
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/**
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* Sets a cookie. Used before a request to set up any individual
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* cookies. Used internally after a request to parse the
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* Set-Cookie headers.
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* @see Cookie::set
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*/
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public function setCookie( $name, $value = null, $attr = null ) {
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if ( !$this->cookieJar ) {
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$this->cookieJar = new CookieJar;
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}
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$this->cookieJar->setCookie( $name, $value, $attr );
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}
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/**
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* Parse the cookies in the response headers and store them in the cookie jar.
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*/
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protected function parseCookies() {
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if ( !$this->cookieJar ) {
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$this->cookieJar = new CookieJar;
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}
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if ( isset( $this->respHeaders['set-cookie'] ) ) {
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$url = parse_url( $this->getFinalUrl() );
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foreach ( $this->respHeaders['set-cookie'] as $cookie ) {
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$this->cookieJar->parseCookieResponseHeader( $cookie, $url['host'] );
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}
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}
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}
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/**
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* Returns the final URL after all redirections.
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*
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* @return String
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*/
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public function getFinalUrl() {
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$location = $this->getResponseHeader( "Location" );
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if ( $location ) {
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return $location;
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}
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return $this->url;
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}
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|
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/**
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* Returns true if the backend can follow redirects. Overridden by the
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* child classes.
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*/
|
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public function canFollowRedirects() {
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return true;
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}
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}
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|
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class Cookie {
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protected $name;
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protected $value;
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protected $expires;
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protected $path;
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protected $domain;
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protected $isSessionKey = true;
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// TO IMPLEMENT protected $secure
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// TO IMPLEMENT? protected $maxAge (add onto expires)
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// TO IMPLEMENT? protected $version
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// TO IMPLEMENT? protected $comment
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|
|
function __construct( $name, $value, $attr ) {
|
|
$this->name = $name;
|
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$this->set( $value, $attr );
|
|
}
|
|
|
|
/**
|
|
* Sets a cookie. Used before a request to set up any individual
|
|
* cookies. Used internally after a request to parse the
|
|
* Set-Cookie headers.
|
|
*
|
|
* @param $value String: the value of the cookie
|
|
* @param $attr Array: possible key/values:
|
|
* expires A date string
|
|
* path The path this cookie is used on
|
|
* domain Domain this cookie is used on
|
|
*/
|
|
public function set( $value, $attr ) {
|
|
$this->value = $value;
|
|
|
|
if ( isset( $attr['expires'] ) ) {
|
|
$this->isSessionKey = false;
|
|
$this->expires = strtotime( $attr['expires'] );
|
|
}
|
|
|
|
if ( isset( $attr['path'] ) ) {
|
|
$this->path = $attr['path'];
|
|
} else {
|
|
$this->path = "/";
|
|
}
|
|
|
|
if ( isset( $attr['domain'] ) ) {
|
|
if ( self::validateCookieDomain( $attr['domain'] ) ) {
|
|
$this->domain = $attr['domain'];
|
|
}
|
|
} else {
|
|
throw new MWException( "You must specify a domain." );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the true if the cookie is valid is valid. Otherwise,
|
|
* false. The uses a method similar to IE cookie security
|
|
* described here:
|
|
* http://kuza55.blogspot.com/2008/02/understanding-cookie-security.html
|
|
* A better method might be to use a blacklist like
|
|
* http://publicsuffix.org/
|
|
*
|
|
* @param $domain String: the domain to validate
|
|
* @param $originDomain String: (optional) the domain the cookie originates from
|
|
* @return Boolean
|
|
*/
|
|
public static function validateCookieDomain( $domain, $originDomain = null ) {
|
|
// Don't allow a trailing dot
|
|
if ( substr( $domain, -1 ) == "." ) {
|
|
return false;
|
|
}
|
|
|
|
$dc = explode( ".", $domain );
|
|
|
|
// Only allow full, valid IP addresses
|
|
if ( preg_match( '/^[0-9.]+$/', $domain ) ) {
|
|
if ( count( $dc ) != 4 ) {
|
|
return false;
|
|
}
|
|
|
|
if ( ip2long( $domain ) === false ) {
|
|
return false;
|
|
}
|
|
|
|
if ( $originDomain == null || $originDomain == $domain ) {
|
|
return true;
|
|
}
|
|
|
|
}
|
|
|
|
// Don't allow cookies for "co.uk" or "gov.uk", etc, but allow "supermarket.uk"
|
|
if ( strrpos( $domain, "." ) - strlen( $domain ) == -3 ) {
|
|
if ( ( count( $dc ) == 2 && strlen( $dc[0] ) <= 2 )
|
|
|| ( count( $dc ) == 3 && strlen( $dc[0] ) == "" && strlen( $dc[1] ) <= 2 ) ) {
|
|
return false;
|
|
}
|
|
if ( ( count( $dc ) == 2 || ( count( $dc ) == 3 && $dc[0] == "" ) )
|
|
&& preg_match( '/(com|net|org|gov|edu)\...$/', $domain ) ) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ( $originDomain != null ) {
|
|
if ( substr( $domain, 0, 1 ) != "." && $domain != $originDomain ) {
|
|
return false;
|
|
}
|
|
|
|
if ( substr( $domain, 0, 1 ) == "."
|
|
&& substr_compare( $originDomain, $domain, -strlen( $domain ),
|
|
strlen( $domain ), TRUE ) != 0 ) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Serialize the cookie jar into a format useful for HTTP Request headers.
|
|
*
|
|
* @param $path String: the path that will be used. Required.
|
|
* @param $domain String: the domain that will be used. Required.
|
|
* @return String
|
|
*/
|
|
public function serializeToHttpRequest( $path, $domain ) {
|
|
$ret = "";
|
|
|
|
if ( $this->canServeDomain( $domain )
|
|
&& $this->canServePath( $path )
|
|
&& $this->isUnExpired() ) {
|
|
$ret = $this->name . "=" . $this->value;
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
protected function canServeDomain( $domain ) {
|
|
if ( $domain == $this->domain
|
|
|| ( strlen( $domain ) > strlen( $this->domain )
|
|
&& substr( $this->domain, 0, 1 ) == "."
|
|
&& substr_compare( $domain, $this->domain, -strlen( $this->domain ),
|
|
strlen( $this->domain ), TRUE ) == 0 ) ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
protected function canServePath( $path ) {
|
|
if ( $this->path && substr_compare( $this->path, $path, 0, strlen( $this->path ) ) == 0 ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
protected function isUnExpired() {
|
|
if ( $this->isSessionKey || $this->expires > time() ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
class CookieJar {
|
|
private $cookie = array();
|
|
|
|
/**
|
|
* Set a cookie in the cookie jar. Make sure only one cookie per-name exists.
|
|
* @see Cookie::set()
|
|
*/
|
|
public function setCookie ( $name, $value, $attr ) {
|
|
/* cookies: case insensitive, so this should work.
|
|
* We'll still send the cookies back in the same case we got them, though.
|
|
*/
|
|
$index = strtoupper( $name );
|
|
|
|
if ( isset( $this->cookie[$index] ) ) {
|
|
$this->cookie[$index]->set( $value, $attr );
|
|
} else {
|
|
$this->cookie[$index] = new Cookie( $name, $value, $attr );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @see Cookie::serializeToHttpRequest
|
|
*/
|
|
public function serializeToHttpRequest( $path, $domain ) {
|
|
$cookies = array();
|
|
|
|
foreach ( $this->cookie as $c ) {
|
|
$serialized = $c->serializeToHttpRequest( $path, $domain );
|
|
|
|
if ( $serialized ) {
|
|
$cookies[] = $serialized;
|
|
}
|
|
}
|
|
|
|
return implode( "; ", $cookies );
|
|
}
|
|
|
|
/**
|
|
* Parse the content of an Set-Cookie HTTP Response header.
|
|
*
|
|
* @param $cookie String
|
|
* @param $domain String: cookie's domain
|
|
*/
|
|
public function parseCookieResponseHeader ( $cookie, $domain ) {
|
|
$len = strlen( "Set-Cookie:" );
|
|
|
|
if ( substr_compare( "Set-Cookie:", $cookie, 0, $len, TRUE ) === 0 ) {
|
|
$cookie = substr( $cookie, $len );
|
|
}
|
|
|
|
$bit = array_map( 'trim', explode( ";", $cookie ) );
|
|
|
|
if ( count( $bit ) >= 1 ) {
|
|
list( $name, $value ) = explode( "=", array_shift( $bit ), 2 );
|
|
$attr = array();
|
|
|
|
foreach ( $bit as $piece ) {
|
|
$parts = explode( "=", $piece );
|
|
if ( count( $parts ) > 1 ) {
|
|
$attr[strtolower( $parts[0] )] = $parts[1];
|
|
} else {
|
|
$attr[strtolower( $parts[0] )] = true;
|
|
}
|
|
}
|
|
|
|
if ( !isset( $attr['domain'] ) ) {
|
|
$attr['domain'] = $domain;
|
|
} elseif ( !Cookie::validateCookieDomain( $attr['domain'], $domain ) ) {
|
|
return null;
|
|
}
|
|
|
|
$this->setCookie( $name, $value, $attr );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* MWHttpRequest implemented using internal curl compiled into PHP
|
|
*/
|
|
class CurlHttpRequest extends MWHttpRequest {
|
|
static $curlMessageMap = array(
|
|
6 => 'http-host-unreachable',
|
|
28 => 'http-timed-out'
|
|
);
|
|
|
|
protected $curlOptions = array();
|
|
protected $headerText = "";
|
|
|
|
protected function readHeader( $fh, $content ) {
|
|
$this->headerText .= $content;
|
|
return strlen( $content );
|
|
}
|
|
|
|
public function execute() {
|
|
parent::execute();
|
|
|
|
if ( !$this->status->isOK() ) {
|
|
return $this->status;
|
|
}
|
|
|
|
$this->curlOptions[CURLOPT_PROXY] = $this->proxy;
|
|
$this->curlOptions[CURLOPT_TIMEOUT] = $this->timeout;
|
|
$this->curlOptions[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_0;
|
|
$this->curlOptions[CURLOPT_WRITEFUNCTION] = $this->callback;
|
|
$this->curlOptions[CURLOPT_HEADERFUNCTION] = array( $this, "readHeader" );
|
|
$this->curlOptions[CURLOPT_MAXREDIRS] = $this->maxRedirects;
|
|
$this->curlOptions[CURLOPT_ENCODING] = ""; # Enable compression
|
|
|
|
/* not sure these two are actually necessary */
|
|
if ( isset( $this->reqHeaders['Referer'] ) ) {
|
|
$this->curlOptions[CURLOPT_REFERER] = $this->reqHeaders['Referer'];
|
|
}
|
|
$this->curlOptions[CURLOPT_USERAGENT] = $this->reqHeaders['User-Agent'];
|
|
|
|
if ( isset( $this->sslVerifyHost ) ) {
|
|
$this->curlOptions[CURLOPT_SSL_VERIFYHOST] = $this->sslVerifyHost;
|
|
}
|
|
|
|
if ( isset( $this->sslVerifyCert ) ) {
|
|
$this->curlOptions[CURLOPT_SSL_VERIFYPEER] = $this->sslVerifyCert;
|
|
}
|
|
|
|
if ( $this->caInfo ) {
|
|
$this->curlOptions[CURLOPT_CAINFO] = $this->caInfo;
|
|
}
|
|
|
|
if ( $this->headersOnly ) {
|
|
$this->curlOptions[CURLOPT_NOBODY] = true;
|
|
$this->curlOptions[CURLOPT_HEADER] = true;
|
|
} elseif ( $this->method == 'POST' ) {
|
|
$this->curlOptions[CURLOPT_POST] = true;
|
|
$this->curlOptions[CURLOPT_POSTFIELDS] = $this->postData;
|
|
// Suppress 'Expect: 100-continue' header, as some servers
|
|
// will reject it with a 417 and Curl won't auto retry
|
|
// with HTTP 1.0 fallback
|
|
$this->reqHeaders['Expect'] = '';
|
|
} else {
|
|
$this->curlOptions[CURLOPT_CUSTOMREQUEST] = $this->method;
|
|
}
|
|
|
|
$this->curlOptions[CURLOPT_HTTPHEADER] = $this->getHeaderList();
|
|
|
|
$curlHandle = curl_init( $this->url );
|
|
|
|
if ( !curl_setopt_array( $curlHandle, $this->curlOptions ) ) {
|
|
throw new MWException( "Error setting curl options." );
|
|
}
|
|
|
|
if ( $this->followRedirects && $this->canFollowRedirects() ) {
|
|
if ( ! @curl_setopt( $curlHandle, CURLOPT_FOLLOWLOCATION, true ) ) {
|
|
wfDebug( __METHOD__ . ": Couldn't set CURLOPT_FOLLOWLOCATION. " .
|
|
"Probably safe_mode or open_basedir is set.\n" );
|
|
// Continue the processing. If it were in curl_setopt_array,
|
|
// processing would have halted on its entry
|
|
}
|
|
}
|
|
|
|
if ( false === curl_exec( $curlHandle ) ) {
|
|
$code = curl_error( $curlHandle );
|
|
|
|
if ( isset( self::$curlMessageMap[$code] ) ) {
|
|
$this->status->fatal( self::$curlMessageMap[$code] );
|
|
} else {
|
|
$this->status->fatal( 'http-curl-error', curl_error( $curlHandle ) );
|
|
}
|
|
} else {
|
|
$this->headerList = explode( "\r\n", $this->headerText );
|
|
}
|
|
|
|
curl_close( $curlHandle );
|
|
|
|
$this->parseHeader();
|
|
$this->setStatus();
|
|
|
|
return $this->status;
|
|
}
|
|
|
|
public function canFollowRedirects() {
|
|
if ( strval( ini_get( 'open_basedir' ) ) !== '' || wfIniGetBool( 'safe_mode' ) ) {
|
|
wfDebug( "Cannot follow redirects in safe mode\n" );
|
|
return false;
|
|
}
|
|
|
|
if ( !defined( 'CURLOPT_REDIR_PROTOCOLS' ) ) {
|
|
wfDebug( "Cannot follow redirects with libcurl < 7.19.4 due to CVE-2009-0037\n" );
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
class PhpHttpRequest extends MWHttpRequest {
|
|
protected function urlToTcp( $url ) {
|
|
$parsedUrl = parse_url( $url );
|
|
|
|
return 'tcp://' . $parsedUrl['host'] . ':' . $parsedUrl['port'];
|
|
}
|
|
|
|
public function execute() {
|
|
parent::execute();
|
|
|
|
// At least on Centos 4.8 with PHP 5.1.6, using max_redirects to follow redirects
|
|
// causes a segfault
|
|
$manuallyRedirect = version_compare( phpversion(), '5.1.7', '<' );
|
|
|
|
if ( $this->parsedUrl['scheme'] != 'http' ) {
|
|
$this->status->fatal( 'http-invalid-scheme', $this->parsedUrl['scheme'] );
|
|
}
|
|
|
|
$this->reqHeaders['Accept'] = "*/*";
|
|
if ( $this->method == 'POST' ) {
|
|
// Required for HTTP 1.0 POSTs
|
|
$this->reqHeaders['Content-Length'] = strlen( $this->postData );
|
|
$this->reqHeaders['Content-type'] = "application/x-www-form-urlencoded";
|
|
}
|
|
|
|
$options = array();
|
|
if ( $this->proxy && !$this->noProxy ) {
|
|
$options['proxy'] = $this->urlToTCP( $this->proxy );
|
|
$options['request_fulluri'] = true;
|
|
}
|
|
|
|
if ( !$this->followRedirects || $manuallyRedirect ) {
|
|
$options['max_redirects'] = 0;
|
|
} else {
|
|
$options['max_redirects'] = $this->maxRedirects;
|
|
}
|
|
|
|
$options['method'] = $this->method;
|
|
$options['header'] = implode( "\r\n", $this->getHeaderList() );
|
|
// Note that at some future point we may want to support
|
|
// HTTP/1.1, but we'd have to write support for chunking
|
|
// in version of PHP < 5.3.1
|
|
$options['protocol_version'] = "1.0";
|
|
|
|
// This is how we tell PHP we want to deal with 404s (for example) ourselves.
|
|
// Only works on 5.2.10+
|
|
$options['ignore_errors'] = true;
|
|
|
|
if ( $this->postData ) {
|
|
$options['content'] = $this->postData;
|
|
}
|
|
|
|
$oldTimeout = false;
|
|
if ( version_compare( '5.2.1', phpversion(), '>' ) ) {
|
|
$oldTimeout = ini_set( 'default_socket_timeout', $this->timeout );
|
|
} else {
|
|
$options['timeout'] = $this->timeout;
|
|
}
|
|
|
|
$context = stream_context_create( array( 'http' => $options ) );
|
|
|
|
$this->headerList = array();
|
|
$reqCount = 0;
|
|
$url = $this->url;
|
|
|
|
do {
|
|
$reqCount++;
|
|
wfSuppressWarnings();
|
|
$fh = fopen( $url, "r", false, $context );
|
|
wfRestoreWarnings();
|
|
|
|
if ( !$fh ) {
|
|
break;
|
|
}
|
|
|
|
$result = stream_get_meta_data( $fh );
|
|
$this->headerList = $result['wrapper_data'];
|
|
$this->parseHeader();
|
|
|
|
if ( !$manuallyRedirect || !$this->followRedirects ) {
|
|
break;
|
|
}
|
|
|
|
# Handle manual redirection
|
|
if ( !$this->isRedirect() || $reqCount > $this->maxRedirects ) {
|
|
break;
|
|
}
|
|
# Check security of URL
|
|
$url = $this->getResponseHeader( "Location" );
|
|
|
|
if ( substr( $url, 0, 7 ) !== 'http://' ) {
|
|
wfDebug( __METHOD__ . ": insecure redirection\n" );
|
|
break;
|
|
}
|
|
} while ( true );
|
|
|
|
if ( $oldTimeout !== false ) {
|
|
ini_set( 'default_socket_timeout', $oldTimeout );
|
|
}
|
|
|
|
$this->setStatus();
|
|
|
|
if ( $fh === false ) {
|
|
$this->status->fatal( 'http-request-error' );
|
|
return $this->status;
|
|
}
|
|
|
|
if ( $result['timed_out'] ) {
|
|
$this->status->fatal( 'http-timed-out', $this->url );
|
|
return $this->status;
|
|
}
|
|
|
|
if ( $this->status->isOK() ) {
|
|
while ( !feof( $fh ) ) {
|
|
$buf = fread( $fh, 8192 );
|
|
|
|
if ( $buf === false ) {
|
|
$this->status->fatal( 'http-read-error' );
|
|
break;
|
|
}
|
|
|
|
if ( strlen( $buf ) ) {
|
|
call_user_func( $this->callback, $fh, $buf );
|
|
}
|
|
}
|
|
}
|
|
fclose( $fh );
|
|
|
|
return $this->status;
|
|
}
|
|
}
|