* Perform an HTTP request
*
* @param $method String: HTTP method. Usually GET/POST
- * @param $url String: full URL to act on
+ * @param $url String: full URL to act on. If protocol-relative, will be expanded to an http:// URL
* @param $options Array: options to pass to MWHttpRequest object.
* Possible keys for the array:
* - timeout Timeout length in seconds
* - postData An array of key-value pairs or a url-encoded form data
* - proxy The proxy to use.
- * Will use $wgHTTPProxy (if set) otherwise.
- * - noProxy Override $wgHTTPProxy (if set) and don't use any proxy at all.
+ * Otherwise it will use $wgHTTPProxy (if set)
+ * Otherwise it will use the environment variable "http_proxy" (if set)
+ * - noProxy Don't use any proxy at all. Takes precedence over proxy value(s).
* - sslVerifyHost (curl only) Verify hostname against certificate
* - sslVerifyCert (curl only) Verify SSL certificate
* - caInfo (curl only) Provide CA information
* - followRedirects Whether to follow redirects (defaults to false).
* Note: this should only be used when the target URL is trusted,
* to avoid attacks on intranet services accessible by HTTP.
+ * - userAgent A user agent, if you want to override the default
+ * MediaWiki/$wgVersion
* @return Mixed: (bool)false on failure or a string on success
*/
public static function request( $method, $url, $options = array() ) {
- $url = wfExpandUrl( $url );
wfDebug( "HTTP: $method: $url\n" );
$options['method'] = strtoupper( $method );
/**
* Simple wrapper for Http::request( 'GET' )
* @see Http::request()
+ *
+ * @param $url
+ * @param $timeout string
+ * @param $options array
+ * @return string
*/
public static function get( $url, $timeout = 'default', $options = array() ) {
$options['timeout'] = $timeout;
/**
* Simple wrapper for Http::request( 'POST' )
* @see Http::request()
+ *
+ * @param $url
+ * @param $options array
+ * @return string
*/
public static function post( $url, $options = array() ) {
return Http::request( 'POST', $url, $options );
* protocols, because we only want protocols that both cURL
* and php support.
*
+ * file:// should not be allowed here for security purpose (r67684)
+ *
+ * @fixme this is wildly inaccurate and fails to actually check most stuff
+ *
* @param $uri Mixed: URI to check for validity
- * @returns Boolean
+ * @return Boolean
*/
public static function isValidURI( $uri ) {
return preg_match(
- '/^(f|ht)tps?:\/\/[^\/\s]\S*$/D',
+ '/^https?:\/\/[^\/\s]\S*$/D',
$uri
);
}
* This wrapper class will call out to curl (if available) or fallback
* to regular PHP if necessary for handling internal HTTP requests.
*
- * Renamed from HttpRequest to MWHttpRequst to avoid conflict with
- * php's HTTP extension.
+ * Renamed from HttpRequest to MWHttpRequest to avoid conflict with
+ * PHP's HTTP extension.
*/
class MWHttpRequest {
const SUPPORTS_FILE_POSTS = false;
-
+
protected $content;
protected $timeout = 'default';
protected $headersOnly = null;
public $status;
/**
- * @param $url String: url to use
+ * @param $url String: url to use. If protocol-relative, will be expanded to an http:// URL
* @param $options Array: (optional) extra params to pass (see Http::request())
*/
function __construct( $url, $options = array() ) {
global $wgHTTPTimeout;
- $this->url = $url;
- $this->parsedUrl = parse_url( $url );
+ $this->url = wfExpandUrl( $url, PROTO_HTTP );
+ $this->parsedUrl = wfParseUrl( $this->url );
- if ( !Http::isValidURI( $this->url ) ) {
+ if ( !$this->parsedUrl || !Http::isValidURI( $this->url ) ) {
$this->status = Status::newFatal( 'http-invalid-url' );
} else {
$this->status = Status::newGood( 100 ); // continue
} else {
$this->timeout = $wgHTTPTimeout;
}
+ if( isset( $options['userAgent'] ) ) {
+ $this->setUserAgent( $options['userAgent'] );
+ }
$members = array( "postData", "proxy", "noProxy", "sslVerifyHost", "caInfo",
"method", "followRedirects", "maxRedirects", "sslVerifyCert", "callback" );
$this->$o = $options[$o];
}
}
+
+ if ( $this->noProxy ) {
+ $this->proxy = ''; // noProxy takes precedence
+ }
+ }
+
+ /**
+ * Simple function to test if we can make any sort of requests at all, using
+ * cURL or fopen()
+ * @return bool
+ */
+ public static function canMakeRequests() {
+ return function_exists( 'curl_init' ) || wfIniGetBool( 'allow_url_fopen' );
}
/**
* Generate a new request object
- * @param $url String: url to use
+ * @param $url String: url to use
* @param $options Array: (optional) extra params to pass (see Http::request())
+ * @return CurlHttpRequest|PhpHttpRequest
* @see MWHttpRequest::__construct
*/
public static function factory( $url, $options = null ) {
}
/**
- * Take care of setting up the proxy
- * (override in subclass)
+ * Take care of setting up the proxy (do nothing if "noProxy" is set)
*
- * @return String
+ * @return void
*/
public function proxySetup() {
global $wgHTTPProxy;
- if ( $this->proxy ) {
+ if ( $this->proxy || !$this->noProxy ) {
return;
}
- if ( Http::isLocalURL( $this->url ) ) {
- $this->proxy = 'http://localhost:80/';
+ if ( Http::isLocalURL( $this->url ) || $this->noProxy ) {
+ $this->proxy = '';
} elseif ( $wgHTTPProxy ) {
$this->proxy = $wgHTTPProxy ;
} elseif ( getenv( "http_proxy" ) ) {
/**
* Set the user agent
+ * @param $UA string
*/
public function setUserAgent( $UA ) {
$this->setHeader( 'User-Agent', $UA );
/**
* Set an arbitrary header
+ * @param $name
+ * @param $value
*/
public function setHeader( $name, $value ) {
// I feel like I should normalize the case here...
/**
* Get an array of the headers
+ * @return array
*/
public function getHeaderList() {
$list = array();
}
/**
- * Set the callback
+ * Set a read callback to accept data read from the HTTP request.
+ * By default, data is appended to an internal buffer which can be
+ * retrieved through $req->getContent().
+ *
+ * To handle data as it comes in -- especially for large files that
+ * would not fit in memory -- you can instead set your own callback,
+ * in the form function($resource, $buffer) where the first parameter
+ * is the low-level resource being read (implementation specific),
+ * and the second parameter is the data buffer.
+ *
+ * You MUST return the number of bytes handled in the buffer; if fewer
+ * bytes are reported handled than were passed to you, the HTTP fetch
+ * will be aborted.
*
* @param $callback Callback
*/
public function setCallback( $callback ) {
+ if ( !is_callable( $callback ) ) {
+ throw new MWException( 'Invalid MwHttpRequest callback' );
+ }
$this->callback = $callback;
}
*
* @param $fh handle
* @param $content String
+ * @return int
*/
public function read( $fh, $content ) {
$this->content .= $content;
}
if ( is_object( $wgTitle ) && !isset( $this->reqHeaders['Referer'] ) ) {
- $this->setReferer( $wgTitle->getFullURL() );
+ $this->setReferer( wfExpandUrl( $wgTitle->getFullURL(), PROTO_CURRENT ) );
}
- if ( !$this->noProxy ) {
- $this->proxySetup();
- }
+ $this->proxySetup(); // set up any proxy as needed
if ( !$this->callback ) {
$this->setCallback( array( $this, 'read' ) );
* Parses the headers, including the HTTP status code and any
* Set-Cookie headers. This function expectes the headers to be
* found in an array in the member variable headerList.
- *
- * @return nothing
*/
protected function parseHeader() {
$lastname = "";
* RFC2616, section 10,
* http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html for a
* list of status codes.)
- *
- * @return nothing
*/
protected function setStatus() {
if ( !$this->respHeaders ) {
/**
* Returns the cookie jar in use.
*
- * @returns CookieJar
+ * @return CookieJar
*/
public function getCookieJar() {
if ( !$this->respHeaders ) {
* cookies. Used internally after a request to parse the
* Set-Cookie headers.
* @see Cookie::set
+ * @param $name
+ * @param $value null
+ * @param $attr null
*/
public function setCookie( $name, $value = null, $attr = null ) {
if ( !$this->cookieJar ) {
/**
* Returns the final URL after all redirections.
*
- * @return String
+ * Relative values of the "Location" header are incorrect as stated in RFC, however they do happen and modern browsers support them.
+ * This function loops backwards through all locations in order to build the proper absolute URI - Marooned at wikia-inc.com
+ *
+ * Note that the multiple Location: headers are an artifact of CURL -- they
+ * shouldn't actually get returned this way. Rewrite this when bug 29232 is
+ * taken care of (high-level redirect handling rewrite).
+ *
+ * @return string
*/
public function getFinalUrl() {
- $location = $this->getResponseHeader( "Location" );
+ $headers = $this->getResponseHeaders();
- if ( $location ) {
- return $location;
+ //return full url (fix for incorrect but handled relative location)
+ if ( isset( $headers[ 'location' ] ) ) {
+ $locations = $headers[ 'location' ];
+ $domain = '';
+ $foundRelativeURI = false;
+ $countLocations = count($locations);
+
+ for ( $i = $countLocations - 1; $i >= 0; $i-- ) {
+ $url = parse_url( $locations[ $i ] );
+
+ if ( isset($url[ 'host' ]) ) {
+ $domain = $url[ 'scheme' ] . '://' . $url[ 'host' ];
+ break; //found correct URI (with host)
+ } else {
+ $foundRelativeURI = true;
+ }
+ }
+
+ if ( $foundRelativeURI ) {
+ if ( $domain ) {
+ return $domain . $locations[ $countLocations - 1 ];
+ } else {
+ $url = parse_url( $this->url );
+ if ( isset($url[ 'host' ]) ) {
+ return $url[ 'scheme' ] . '://' . $url[ 'host' ] . $locations[ $countLocations - 1 ];
+ }
+ }
+ } else {
+ return $locations[ $countLocations - 1 ];
+ }
}
return $this->url;
/**
* Returns true if the backend can follow redirects. Overridden by the
* child classes.
+ * @return bool
*/
public function canFollowRedirects() {
return true;
*/
class CurlHttpRequest extends MWHttpRequest {
const SUPPORTS_FILE_POSTS = true;
-
+
static $curlMessageMap = array(
6 => 'http-host-unreachable',
28 => 'http-timed-out'
protected $curlOptions = array();
protected $headerText = "";
+ /**
+ * @param $fh
+ * @param $content
+ * @return int
+ */
protected function readHeader( $fh, $content ) {
$this->headerText .= $content;
return strlen( $content );
return $this->status;
}
+ /**
+ * @return bool
+ */
public function canFollowRedirects() {
if ( strval( ini_get( 'open_basedir' ) ) !== '' || wfIniGetBool( 'safe_mode' ) ) {
wfDebug( "Cannot follow redirects in safe mode\n" );
}
class PhpHttpRequest extends MWHttpRequest {
+
+ /**
+ * @param $url string
+ * @return string
+ */
protected function urlToTcp( $url ) {
$parsedUrl = parse_url( $url );
if ( is_array( $this->postData ) ) {
$this->postData = wfArrayToCGI( $this->postData );
- }
-
- // 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' ) {
+ if ( $this->parsedUrl['scheme'] != 'http' &&
+ $this->parsedUrl['scheme'] != 'https' ) {
$this->status->fatal( 'http-invalid-scheme', $this->parsedUrl['scheme'] );
}
}
$options = array();
- if ( $this->proxy && !$this->noProxy ) {
+ if ( $this->proxy ) {
$options['proxy'] = $this->urlToTCP( $this->proxy );
$options['request_fulluri'] = true;
}
- if ( !$this->followRedirects || $manuallyRedirect ) {
+ if ( !$this->followRedirects ) {
$options['max_redirects'] = 0;
} else {
$options['max_redirects'] = $this->maxRedirects;
$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;
- }
+ $options['timeout'] = $this->timeout;
$context = stream_context_create( array( 'http' => $options ) );
$this->headerList = $result['wrapper_data'];
$this->parseHeader();
- if ( !$manuallyRedirect || !$this->followRedirects ) {
+ if ( !$this->followRedirects ) {
break;
}
# Check security of URL
$url = $this->getResponseHeader( "Location" );
- if ( substr( $url, 0, 7 ) !== 'http://' ) {
+ if ( !Http::isValidURI( $url ) ) {
wfDebug( __METHOD__ . ": insecure redirection\n" );
break;
}
} while ( true );
- if ( $oldTimeout !== false ) {
- ini_set( 'default_socket_timeout', $oldTimeout );
- }
-
$this->setStatus();
if ( $fh === false ) {
return $this->status;
}
- if ( $this->status->isOK() ) {
+ // If everything went OK, or we recieved some error code
+ // get the response body content.
+ if ( $this->status->isOK()
+ || (int)$this->respStatus >= 300) {
while ( !feof( $fh ) ) {
$buf = fread( $fh, 8192 );
dépôts / lhc / web / wiklou.git / blobdiff