7 * Various HTTP related functions
11 static $httpEngine = false;
14 * Perform an HTTP request
16 * @param $method String: HTTP method. Usually GET/POST
17 * @param $url String: full URL to act on
18 * @param $options Array: options to pass to HttpRequest object.
19 * Possible keys for the array:
20 * - timeout Timeout length in seconds
21 * - postData An array of key-value pairs or a url-encoded form data
22 * - proxy The proxy to use.
23 * Will use $wgHTTPProxy (if set) otherwise.
24 * - noProxy Override $wgHTTPProxy (if set) and don't use any proxy at all.
25 * - sslVerifyHost (curl only) Verify hostname against certificate
26 * - sslVerifyCert (curl only) Verify SSL certificate
27 * - caInfo (curl only) Provide CA information
28 * - maxRedirects Maximum number of redirects to follow (defaults to 5)
29 * - followRedirects Whether to follow redirects (defaults to false).
30 * Note: this should only be used when the target URL is trusted,
31 * to avoid attacks on intranet services accessible by HTTP.
32 * @return Mixed: (bool)false on failure or a string on success
34 public static function request( $method, $url, $options = array() ) {
35 $url = wfExpandUrl( $url );
36 wfDebug( "HTTP: $method: $url\n" );
37 $options['method'] = strtoupper( $method );
39 if ( !isset( $options['timeout'] ) ) {
40 $options['timeout'] = 'default';
43 $req = HttpRequest
::factory( $url, $options );
44 $status = $req->execute();
46 if ( $status->isOK() ) {
47 return $req->getContent();
54 * Simple wrapper for Http::request( 'GET' )
55 * @see Http::request()
57 public static function get( $url, $timeout = 'default', $options = array() ) {
58 $options['timeout'] = $timeout;
59 return Http
::request( 'GET', $url, $options );
63 * Simple wrapper for Http::request( 'POST' )
64 * @see Http::request()
66 public static function post( $url, $options = array() ) {
67 return Http
::request( 'POST', $url, $options );
71 * Check if the URL can be served by localhost
73 * @param $url String: full url to check
76 public static function isLocalURL( $url ) {
77 global $wgCommandLineMode, $wgConf;
79 if ( $wgCommandLineMode ) {
85 if ( preg_match( '!^http://([\w.-]+)[/:].*$!', $url, $matches ) ) {
88 $domainParts = explode( '.', $host );
89 // Check if this domain or any superdomain is listed in $wgConf as a local virtual host
90 $domainParts = array_reverse( $domainParts );
92 for ( $i = 0; $i < count( $domainParts ); $i++
) {
93 $domainPart = $domainParts[$i];
95 $domain = $domainPart;
97 $domain = $domainPart . '.' . $domain;
100 if ( $wgConf->isLocalVHost( $domain ) ) {
110 * A standard user-agent we can use for external requests.
113 public static function userAgent() {
115 return "MediaWiki/$wgVersion";
119 * Checks that the given URI is a valid one
121 * @param $uri Mixed: URI to check for validity
124 public static function isValidURI( $uri ) {
126 '/(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/',
134 * This wrapper class will call out to curl (if available) or fallback
135 * to regular PHP if necessary for handling internal HTTP requests.
139 protected $timeout = 'default';
140 protected $headersOnly = null;
141 protected $postData = null;
142 protected $proxy = null;
143 protected $noProxy = false;
144 protected $sslVerifyHost = true;
145 protected $sslVerifyCert = true;
146 protected $caInfo = null;
147 protected $method = "GET";
148 protected $reqHeaders = array();
150 protected $parsedUrl;
152 protected $maxRedirects = 5;
153 protected $followRedirects = false;
155 protected $cookieJar;
157 protected $headerList = array();
158 protected $respVersion = "0.9";
159 protected $respStatus = "200 Ok";
160 protected $respHeaders = array();
165 * @param $url String: url to use
166 * @param $options Array: (optional) extra params to pass (see Http::request())
168 function __construct( $url, $options = array() ) {
169 global $wgHTTPTimeout;
172 $this->parsedUrl
= parse_url( $url );
174 if ( !Http
::isValidURI( $this->url
) ) {
175 $this->status
= Status
::newFatal( 'http-invalid-url' );
177 $this->status
= Status
::newGood( 100 ); // continue
180 if ( isset( $options['timeout'] ) && $options['timeout'] != 'default' ) {
181 $this->timeout
= $options['timeout'];
183 $this->timeout
= $wgHTTPTimeout;
186 $members = array( "postData", "proxy", "noProxy", "sslVerifyHost", "caInfo",
187 "method", "followRedirects", "maxRedirects", "sslVerifyCert" );
189 foreach ( $members as $o ) {
190 if ( isset( $options[$o] ) ) {
191 $this->$o = $options[$o];
197 * Generate a new request object
198 * @see HttpRequest::__construct
200 public static function factory( $url, $options = null ) {
201 if ( !Http
::$httpEngine ) {
202 Http
::$httpEngine = function_exists( 'curl_init' ) ?
'curl' : 'php';
203 } elseif ( Http
::$httpEngine == 'curl' && !function_exists( 'curl_init' ) ) {
204 throw new MWException( __METHOD__
. ': curl (http://php.net/curl) is not installed, but' .
205 ' Http::$httpEngine is set to "curl"' );
208 switch( Http
::$httpEngine ) {
210 return new CurlHttpRequest( $url, $options );
212 if ( !wfIniGetBool( 'allow_url_fopen' ) ) {
213 throw new MWException( __METHOD__
. ': allow_url_fopen needs to be enabled for pure PHP' .
214 ' http requests to work. If possible, curl should be used instead. See http://php.net/curl.' );
216 return new PhpHttpRequest( $url, $options );
218 throw new MWException( __METHOD__
. ': The setting of Http::$httpEngine is not valid.' );
223 * Get the body, or content, of the response to the request
227 public function getContent() {
228 return $this->content
;
232 * Set the parameters of the request
235 * @todo overload the args param
237 public function setData( $args ) {
238 $this->postData
= $args;
242 * Take care of setting up the proxy
243 * (override in subclass)
247 public function proxySetup() {
250 if ( $this->proxy
) {
254 if ( Http
::isLocalURL( $this->url
) ) {
255 $this->proxy
= 'http://localhost:80/';
256 } elseif ( $wgHTTPProxy ) {
257 $this->proxy
= $wgHTTPProxy ;
258 } elseif ( getenv( "http_proxy" ) ) {
259 $this->proxy
= getenv( "http_proxy" );
264 * Set the refererer header
266 public function setReferer( $url ) {
267 $this->setHeader( 'Referer', $url );
273 public function setUserAgent( $UA ) {
274 $this->setHeader( 'User-Agent', $UA );
278 * Set an arbitrary header
280 public function setHeader( $name, $value ) {
281 // I feel like I should normalize the case here...
282 $this->reqHeaders
[$name] = $value;
286 * Get an array of the headers
288 public function getHeaderList() {
291 if ( $this->cookieJar
) {
292 $this->reqHeaders
['Cookie'] =
293 $this->cookieJar
->serializeToHttpRequest(
294 $this->parsedUrl
['path'],
295 $this->parsedUrl
['host']
299 foreach ( $this->reqHeaders
as $name => $value ) {
300 $list[] = "$name: $value";
309 * @param $callback Callback
311 public function setCallback( $callback ) {
312 $this->callback
= $callback;
316 * A generic callback to read the body of the response from a remote
320 * @param $content String
322 public function read( $fh, $content ) {
323 $this->content
.= $content;
324 return strlen( $content );
328 * Take care of whatever is necessary to perform the URI request.
332 public function execute() {
337 if ( strtoupper( $this->method
) == "HEAD" ) {
338 $this->headersOnly
= true;
341 if ( is_array( $this->postData
) ) {
342 $this->postData
= wfArrayToCGI( $this->postData
);
345 if ( is_object( $wgTitle ) && !isset( $this->reqHeaders
['Referer'] ) ) {
346 $this->setReferer( $wgTitle->getFullURL() );
349 if ( !$this->noProxy
) {
353 if ( !$this->callback
) {
354 $this->setCallback( array( $this, 'read' ) );
357 if ( !isset( $this->reqHeaders
['User-Agent'] ) ) {
358 $this->setUserAgent( Http
::userAgent() );
363 * Parses the headers, including the HTTP status code and any
364 * Set-Cookie headers. This function expectes the headers to be
365 * found in an array in the member variable headerList.
369 protected function parseHeader() {
372 foreach ( $this->headerList
as $header ) {
373 if ( preg_match( "#^HTTP/([0-9.]+) (.*)#", $header, $match ) ) {
374 $this->respVersion
= $match[1];
375 $this->respStatus
= $match[2];
376 } elseif ( preg_match( "#^[ \t]#", $header ) ) {
377 $last = count( $this->respHeaders
[$lastname] ) - 1;
378 $this->respHeaders
[$lastname][$last] .= "\r\n$header";
379 } elseif ( preg_match( "#^([^:]*):[\t ]*(.*)#", $header, $match ) ) {
380 $this->respHeaders
[strtolower( $match[1] )][] = $match[2];
381 $lastname = strtolower( $match[1] );
385 $this->parseCookies();
389 * Sets HTTPRequest status member to a fatal value with the error
390 * message if the returned integer value of the status code was
391 * not successful (< 300) or a redirect (>=300 and < 400). (see
392 * RFC2616, section 10,
393 * http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html for a
394 * list of status codes.)
398 protected function setStatus() {
399 if ( !$this->respHeaders
) {
400 $this->parseHeader();
403 if ( (int)$this->respStatus
> 399 ) {
404 list( $code, $message ) = explode( " ", $this->respStatus
, 2 );
405 $this->status
->fatal( "http-bad-status", $code, $message );
410 * Get the integer value of the HTTP status code (e.g. 200 for "200 Ok")
411 * (see RFC2616, section 10, http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
412 * for a list of status codes.)
416 public function getStatus() {
417 if ( !$this->respHeaders
) {
418 $this->parseHeader();
421 return (int)$this->respStatus
;
426 * Returns true if the last status code was a redirect.
430 public function isRedirect() {
431 if ( !$this->respHeaders
) {
432 $this->parseHeader();
435 $status = (int)$this->respStatus
;
437 if ( $status >= 300 && $status <= 303 ) {
445 * Returns an associative array of response headers after the
446 * request has been executed. Because some headers
447 * (e.g. Set-Cookie) can appear more than once the, each value of
448 * the associative array is an array of the values given.
452 public function getResponseHeaders() {
453 if ( !$this->respHeaders
) {
454 $this->parseHeader();
457 return $this->respHeaders
;
461 * Returns the value of the given response header.
463 * @param $header String
466 public function getResponseHeader( $header ) {
467 if ( !$this->respHeaders
) {
468 $this->parseHeader();
471 if ( isset( $this->respHeaders
[strtolower ( $header ) ] ) ) {
472 $v = $this->respHeaders
[strtolower ( $header ) ];
473 return $v[count( $v ) - 1];
480 * Tells the HttpRequest object to use this pre-loaded CookieJar.
482 * @param $jar CookieJar
484 public function setCookieJar( $jar ) {
485 $this->cookieJar
= $jar;
489 * Returns the cookie jar in use.
493 public function getCookieJar() {
494 if ( !$this->respHeaders
) {
495 $this->parseHeader();
498 return $this->cookieJar
;
502 * Sets a cookie. Used before a request to set up any individual
503 * cookies. Used internally after a request to parse the
504 * Set-Cookie headers.
507 public function setCookie( $name, $value = null, $attr = null ) {
508 if ( !$this->cookieJar
) {
509 $this->cookieJar
= new CookieJar
;
512 $this->cookieJar
->setCookie( $name, $value, $attr );
516 * Parse the cookies in the response headers and store them in the cookie jar.
518 protected function parseCookies() {
519 if ( !$this->cookieJar
) {
520 $this->cookieJar
= new CookieJar
;
523 if ( isset( $this->respHeaders
['set-cookie'] ) ) {
524 $url = parse_url( $this->getFinalUrl() );
525 foreach ( $this->respHeaders
['set-cookie'] as $cookie ) {
526 $this->cookieJar
->parseCookieResponseHeader( $cookie, $url['host'] );
532 * Returns the final URL after all redirections.
536 public function getFinalUrl() {
537 $location = $this->getResponseHeader( "Location" );
547 * Returns true if the backend can follow redirects. Overridden by the
550 public function canFollowRedirects() {
562 protected $isSessionKey = true;
563 // TO IMPLEMENT protected $secure
564 // TO IMPLEMENT? protected $maxAge (add onto expires)
565 // TO IMPLEMENT? protected $version
566 // TO IMPLEMENT? protected $comment
568 function __construct( $name, $value, $attr ) {
570 $this->set( $value, $attr );
574 * Sets a cookie. Used before a request to set up any individual
575 * cookies. Used internally after a request to parse the
576 * Set-Cookie headers.
578 * @param $value String: the value of the cookie
579 * @param $attr Array: possible key/values:
580 * expires A date string
581 * path The path this cookie is used on
582 * domain Domain this cookie is used on
584 public function set( $value, $attr ) {
585 $this->value
= $value;
587 if ( isset( $attr['expires'] ) ) {
588 $this->isSessionKey
= false;
589 $this->expires
= strtotime( $attr['expires'] );
592 if ( isset( $attr['path'] ) ) {
593 $this->path
= $attr['path'];
598 if ( isset( $attr['domain'] ) ) {
599 if ( self
::validateCookieDomain( $attr['domain'] ) ) {
600 $this->domain
= $attr['domain'];
603 throw new MWException( "You must specify a domain." );
608 * Return the true if the cookie is valid is valid. Otherwise,
609 * false. The uses a method similar to IE cookie security
611 * http://kuza55.blogspot.com/2008/02/understanding-cookie-security.html
612 * A better method might be to use a blacklist like
613 * http://publicsuffix.org/
615 * @param $domain String: the domain to validate
616 * @param $originDomain String: (optional) the domain the cookie originates from
619 public static function validateCookieDomain( $domain, $originDomain = null ) {
620 // Don't allow a trailing dot
621 if ( substr( $domain, -1 ) == "." ) {
625 $dc = explode( ".", $domain );
627 // Only allow full, valid IP addresses
628 if ( preg_match( '/^[0-9.]+$/', $domain ) ) {
629 if ( count( $dc ) != 4 ) {
633 if ( ip2long( $domain ) === false ) {
637 if ( $originDomain == null ||
$originDomain == $domain ) {
643 // Don't allow cookies for "co.uk" or "gov.uk", etc, but allow "supermarket.uk"
644 if ( strrpos( $domain, "." ) - strlen( $domain ) == -3 ) {
645 if ( ( count( $dc ) == 2 && strlen( $dc[0] ) <= 2 )
646 ||
( count( $dc ) == 3 && strlen( $dc[0] ) == "" && strlen( $dc[1] ) <= 2 ) ) {
649 if ( ( count( $dc ) == 2 ||
( count( $dc ) == 3 && $dc[0] == "" ) )
650 && preg_match( '/(com|net|org|gov|edu)\...$/', $domain ) ) {
655 if ( $originDomain != null ) {
656 if ( substr( $domain, 0, 1 ) != "." && $domain != $originDomain ) {
660 if ( substr( $domain, 0, 1 ) == "."
661 && substr_compare( $originDomain, $domain, -strlen( $domain ),
662 strlen( $domain ), TRUE ) != 0 ) {
671 * Serialize the cookie jar into a format useful for HTTP Request headers.
673 * @param $path String: the path that will be used. Required.
674 * @param $domain String: the domain that will be used. Required.
677 public function serializeToHttpRequest( $path, $domain ) {
680 if ( $this->canServeDomain( $domain )
681 && $this->canServePath( $path )
682 && $this->isUnExpired() ) {
683 $ret = $this->name
. "=" . $this->value
;
689 protected function canServeDomain( $domain ) {
690 if ( $domain == $this->domain
691 ||
( strlen( $domain ) > strlen( $this->domain
)
692 && substr( $this->domain
, 0, 1 ) == "."
693 && substr_compare( $domain, $this->domain
, -strlen( $this->domain
),
694 strlen( $this->domain
), TRUE ) == 0 ) ) {
701 protected function canServePath( $path ) {
702 if ( $this->path
&& substr_compare( $this->path
, $path, 0, strlen( $this->path
) ) == 0 ) {
709 protected function isUnExpired() {
710 if ( $this->isSessionKey ||
$this->expires
> time() ) {
719 private $cookie = array();
722 * Set a cookie in the cookie jar. Make sure only one cookie per-name exists.
725 public function setCookie ( $name, $value, $attr ) {
726 /* cookies: case insensitive, so this should work.
727 * We'll still send the cookies back in the same case we got them, though.
729 $index = strtoupper( $name );
731 if ( isset( $this->cookie
[$index] ) ) {
732 $this->cookie
[$index]->set( $value, $attr );
734 $this->cookie
[$index] = new Cookie( $name, $value, $attr );
739 * @see Cookie::serializeToHttpRequest
741 public function serializeToHttpRequest( $path, $domain ) {
744 foreach ( $this->cookie
as $c ) {
745 $serialized = $c->serializeToHttpRequest( $path, $domain );
748 $cookies[] = $serialized;
752 return implode( "; ", $cookies );
756 * Parse the content of an Set-Cookie HTTP Response header.
758 * @param $cookie String
759 * @param $domain String: cookie's domain
761 public function parseCookieResponseHeader ( $cookie, $domain ) {
762 $len = strlen( "Set-Cookie:" );
764 if ( substr_compare( "Set-Cookie:", $cookie, 0, $len, TRUE ) === 0 ) {
765 $cookie = substr( $cookie, $len );
768 $bit = array_map( 'trim', explode( ";", $cookie ) );
770 if ( count( $bit ) >= 1 ) {
771 list( $name, $value ) = explode( "=", array_shift( $bit ), 2 );
774 foreach ( $bit as $piece ) {
775 $parts = explode( "=", $piece );
776 if ( count( $parts ) > 1 ) {
777 $attr[strtolower( $parts[0] )] = $parts[1];
779 $attr[strtolower( $parts[0] )] = true;
783 if ( !isset( $attr['domain'] ) ) {
784 $attr['domain'] = $domain;
785 } elseif ( !Cookie
::validateCookieDomain( $attr['domain'], $domain ) ) {
789 $this->setCookie( $name, $value, $attr );
795 * HttpRequest implemented using internal curl compiled into PHP
797 class CurlHttpRequest
extends HttpRequest
{
798 static $curlMessageMap = array(
799 6 => 'http-host-unreachable',
800 28 => 'http-timed-out'
803 protected $curlOptions = array();
804 protected $headerText = "";
806 protected function readHeader( $fh, $content ) {
807 $this->headerText
.= $content;
808 return strlen( $content );
811 public function execute() {
814 if ( !$this->status
->isOK() ) {
815 return $this->status
;
818 $this->curlOptions
[CURLOPT_PROXY
] = $this->proxy
;
819 $this->curlOptions
[CURLOPT_TIMEOUT
] = $this->timeout
;
820 $this->curlOptions
[CURLOPT_HTTP_VERSION
] = CURL_HTTP_VERSION_1_0
;
821 $this->curlOptions
[CURLOPT_WRITEFUNCTION
] = $this->callback
;
822 $this->curlOptions
[CURLOPT_HEADERFUNCTION
] = array( $this, "readHeader" );
823 $this->curlOptions
[CURLOPT_MAXREDIRS
] = $this->maxRedirects
;
824 $this->curlOptions
[CURLOPT_ENCODING
] = ""; # Enable compression
826 /* not sure these two are actually necessary */
827 if ( isset( $this->reqHeaders
['Referer'] ) ) {
828 $this->curlOptions
[CURLOPT_REFERER
] = $this->reqHeaders
['Referer'];
830 $this->curlOptions
[CURLOPT_USERAGENT
] = $this->reqHeaders
['User-Agent'];
832 if ( isset( $this->sslVerifyHost
) ) {
833 $this->curlOptions
[CURLOPT_SSL_VERIFYHOST
] = $this->sslVerifyHost
;
836 if ( isset( $this->sslVerifyCert
) ) {
837 $this->curlOptions
[CURLOPT_SSL_VERIFYPEER
] = $this->sslVerifyCert
;
840 if ( $this->caInfo
) {
841 $this->curlOptions
[CURLOPT_CAINFO
] = $this->caInfo
;
844 if ( $this->headersOnly
) {
845 $this->curlOptions
[CURLOPT_NOBODY
] = true;
846 $this->curlOptions
[CURLOPT_HEADER
] = true;
847 } elseif ( $this->method
== 'POST' ) {
848 $this->curlOptions
[CURLOPT_POST
] = true;
849 $this->curlOptions
[CURLOPT_POSTFIELDS
] = $this->postData
;
850 // Suppress 'Expect: 100-continue' header, as some servers
851 // will reject it with a 417 and Curl won't auto retry
852 // with HTTP 1.0 fallback
853 $this->reqHeaders
['Expect'] = '';
855 $this->curlOptions
[CURLOPT_CUSTOMREQUEST
] = $this->method
;
858 $this->curlOptions
[CURLOPT_HTTPHEADER
] = $this->getHeaderList();
860 $curlHandle = curl_init( $this->url
);
862 if ( !curl_setopt_array( $curlHandle, $this->curlOptions
) ) {
863 throw new MWException( "Error setting curl options." );
866 if ( $this->followRedirects
&& $this->canFollowRedirects() ) {
867 if ( ! @curl_setopt
( $curlHandle, CURLOPT_FOLLOWLOCATION
, true ) ) {
868 wfDebug( __METHOD__
. ": Couldn't set CURLOPT_FOLLOWLOCATION. " .
869 "Probably safe_mode or open_basedir is set.\n" );
870 // Continue the processing. If it were in curl_setopt_array,
871 // processing would have halted on its entry
875 if ( false === curl_exec( $curlHandle ) ) {
876 $code = curl_error( $curlHandle );
878 if ( isset( self
::$curlMessageMap[$code] ) ) {
879 $this->status
->fatal( self
::$curlMessageMap[$code] );
881 $this->status
->fatal( 'http-curl-error', curl_error( $curlHandle ) );
884 $this->headerList
= explode( "\r\n", $this->headerText
);
887 curl_close( $curlHandle );
889 $this->parseHeader();
892 return $this->status
;
895 public function canFollowRedirects() {
896 if ( strval( ini_get( 'open_basedir' ) ) !== '' ||
wfIniGetBool( 'safe_mode' ) ) {
897 wfDebug( "Cannot follow redirects in safe mode\n" );
901 if ( !defined( 'CURLOPT_REDIR_PROTOCOLS' ) ) {
902 wfDebug( "Cannot follow redirects with libcurl < 7.19.4 due to CVE-2009-0037\n" );
910 class PhpHttpRequest
extends HttpRequest
{
911 protected function urlToTcp( $url ) {
912 $parsedUrl = parse_url( $url );
914 return 'tcp://' . $parsedUrl['host'] . ':' . $parsedUrl['port'];
917 public function execute() {
920 // At least on Centos 4.8 with PHP 5.1.6, using max_redirects to follow redirects
922 $manuallyRedirect = version_compare( phpversion(), '5.1.7', '<' );
924 if ( $this->parsedUrl
['scheme'] != 'http' ) {
925 $this->status
->fatal( 'http-invalid-scheme', $this->parsedUrl
['scheme'] );
928 $this->reqHeaders
['Accept'] = "*/*";
929 if ( $this->method
== 'POST' ) {
930 // Required for HTTP 1.0 POSTs
931 $this->reqHeaders
['Content-Length'] = strlen( $this->postData
);
932 $this->reqHeaders
['Content-type'] = "application/x-www-form-urlencoded";
936 if ( $this->proxy
&& !$this->noProxy
) {
937 $options['proxy'] = $this->urlToTCP( $this->proxy
);
938 $options['request_fulluri'] = true;
941 if ( !$this->followRedirects ||
$manuallyRedirect ) {
942 $options['max_redirects'] = 0;
944 $options['max_redirects'] = $this->maxRedirects
;
947 $options['method'] = $this->method
;
948 $options['header'] = implode( "\r\n", $this->getHeaderList() );
949 // Note that at some future point we may want to support
950 // HTTP/1.1, but we'd have to write support for chunking
951 // in version of PHP < 5.3.1
952 $options['protocol_version'] = "1.0";
954 // This is how we tell PHP we want to deal with 404s (for example) ourselves.
955 // Only works on 5.2.10+
956 $options['ignore_errors'] = true;
958 if ( $this->postData
) {
959 $options['content'] = $this->postData
;
963 if ( version_compare( '5.2.1', phpversion(), '>' ) ) {
964 $oldTimeout = ini_set( 'default_socket_timeout', $this->timeout
);
966 $options['timeout'] = $this->timeout
;
969 $context = stream_context_create( array( 'http' => $options ) );
971 $this->headerList
= array();
977 wfSuppressWarnings();
978 $fh = fopen( $url, "r", false, $context );
985 $result = stream_get_meta_data( $fh );
986 $this->headerList
= $result['wrapper_data'];
987 $this->parseHeader();
989 if ( !$manuallyRedirect ||
!$this->followRedirects
) {
993 # Handle manual redirection
994 if ( !$this->isRedirect() ||
$reqCount > $this->maxRedirects
) {
997 # Check security of URL
998 $url = $this->getResponseHeader( "Location" );
1000 if ( substr( $url, 0, 7 ) !== 'http://' ) {
1001 wfDebug( __METHOD__
. ": insecure redirection\n" );
1006 if ( $oldTimeout !== false ) {
1007 ini_set( 'default_socket_timeout', $oldTimeout );
1012 if ( $fh === false ) {
1013 $this->status
->fatal( 'http-request-error' );
1014 return $this->status
;
1017 if ( $result['timed_out'] ) {
1018 $this->status
->fatal( 'http-timed-out', $this->url
);
1019 return $this->status
;
1022 if ( $this->status
->isOK() ) {
1023 while ( !feof( $fh ) ) {
1024 $buf = fread( $fh, 8192 );
1026 if ( $buf === false ) {
1027 $this->status
->fatal( 'http-read-error' );
1031 if ( strlen( $buf ) ) {
1032 call_user_func( $this->callback
, $fh, $buf );
1038 return $this->status
;