* @ingroup HTTP
*/
class Http {
+ static $httpEngine = false;
+
/**
* Perform an HTTP request
- * @param $method string HTTP method. Usually GET/POST
- * @param $url string Full URL to act on
- * @param $options options to pass to HttpRequest object
- * @returns mixed (bool)false on failure or a string on success
+ *
+ * @param $method String: HTTP method. Usually GET/POST
+ * @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 $wgHTTPProxy (if set) and don't use any proxy at all.
+ * - sslVerifyHost (curl only) Verify hostname against certificate
+ * - sslVerifyCert (curl only) Verify SSL certificate
+ * - caInfo (curl only) Provide CA information
+ * - maxRedirects Maximum number of redirects to follow (defaults to 5)
+ * - followRedirects Whether to follow redirects (defaults to false).
+ * Note: this should only be used when the target URL is trusted,
+ * to avoid attacks on intranet services accessible by HTTP.
+ * - userAgent A user agent, if you want to override the default
+ * MediaWiki/$wgVersion
+ * @return Mixed: (bool)false on failure or a string on success
*/
public static function request( $method, $url, $options = array() ) {
+ wfDebug( "HTTP: $method: $url\n" );
$options['method'] = strtoupper( $method );
+
if ( !isset( $options['timeout'] ) ) {
$options['timeout'] = 'default';
}
- $req = HttpRequest::factory( $url, $options );
+
+ $req = MWHttpRequest::factory( $url, $options );
+ if( isset( $options['userAgent'] ) ) {
+ $req->setUserAgent( $options['userAgent'] );
+ }
$status = $req->execute();
+
if ( $status->isOK() ) {
return $req->getContent();
} else {
/**
* 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 );
/**
* Check if the URL can be served by localhost
- * @param $url string Full url to check
- * @return bool
+ *
+ * @param $url String: full url to check
+ * @return Boolean
*/
public static function isLocalURL( $url ) {
global $wgCommandLineMode, $wgConf;
+
if ( $wgCommandLineMode ) {
return false;
}
$domainParts = explode( '.', $host );
// Check if this domain or any superdomain is listed in $wgConf as a local virtual host
$domainParts = array_reverse( $domainParts );
+
+ $domain = '';
for ( $i = 0; $i < count( $domainParts ); $i++ ) {
$domainPart = $domainParts[$i];
if ( $i == 0 ) {
} else {
$domain = $domainPart . '.' . $domain;
}
+
if ( $wgConf->isLocalVHost( $domain ) ) {
return true;
}
}
}
+
return false;
}
/**
* A standard user-agent we can use for external requests.
- * @returns string
+ * @return String
*/
public static function userAgent() {
global $wgVersion;
}
/**
- * Checks that the given URI is a valid one
+ * Checks that the given URI is a valid one. Hardcoding the
+ * 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 bool
+ * @return Boolean
*/
public static function isValidURI( $uri ) {
return preg_match(
- '/(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/',
- $uri,
- $matches
+ '/^https?:\/\/[^\/\s]\S*$/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 MWHttpRequest to avoid conflict with
+ * PHP's HTTP extension.
*/
-class HttpRequest {
+class MWHttpRequest {
+ const SUPPORTS_FILE_POSTS = false;
+
protected $content;
protected $timeout = 'default';
protected $headersOnly = null;
protected $proxy = null;
protected $noProxy = false;
protected $sslVerifyHost = true;
+ protected $sslVerifyCert = true;
protected $caInfo = null;
protected $method = "GET";
protected $reqHeaders = array();
protected $url;
protected $parsedUrl;
protected $callback;
+ protected $maxRedirects = 5;
+ protected $followRedirects = false;
+
+ /**
+ * @var CookieJar
+ */
+ protected $cookieJar;
+
+ protected $headerList = array();
+ protected $respVersion = "0.9";
+ protected $respStatus = "200 Ok";
+ protected $respHeaders = array();
+
public $status;
/**
- * @param $url string url to use
- * @param $options array (optional) extra params to pass
- * Possible keys for the array:
- * method
- * timeout
- * targetFilePath
- * requestKey
- * postData
- * proxy
- * noProxy
- * sslVerifyHost
- * caInfo
+ * @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 ) ) {
- $this->status = Status::newFromFatal('http-invalid-url');
+ if ( !$this->parsedUrl || !Http::isValidURI( $this->url ) ) {
+ $this->status = Status::newFatal( 'http-invalid-url' );
} else {
$this->status = Status::newGood( 100 ); // continue
}
- if ( isset($options['timeout']) && $options['timeout'] != 'default' ) {
+ if ( isset( $options['timeout'] ) && $options['timeout'] != 'default' ) {
$this->timeout = $options['timeout'];
} else {
$this->timeout = $wgHTTPTimeout;
}
- $members = array( "targetFilePath", "requestKey", "postData",
- "proxy", "noProxy", "sslVerifyHost", "caInfo", "method" );
+ $members = array( "postData", "proxy", "noProxy", "sslVerifyHost", "caInfo",
+ "method", "followRedirects", "maxRedirects", "sslVerifyCert", "callback" );
+
foreach ( $members as $o ) {
- if ( isset($options[$o]) ) {
+ if ( isset( $options[$o] ) ) {
$this->$o = $options[$o];
}
}
}
/**
- * Generate a new request object
- * @see HttpRequest::__construct
+ * Simple function to test if we can make any sort of requests at all, using
+ * cURL or fopen()
+ * @return bool
*/
- public static function factory( $url, $options ) {
- global $wgHTTPEngine;
- $engine = $wgHTTPEngine;
+ public static function canMakeRequests() {
+ return function_exists( 'curl_init' ) || wfIniGetBool( 'allow_url_fopen' );
+ }
- if ( !$wgHTTPEngine ) {
- $wgHTTPEngine = function_exists( 'curl_init' ) ? 'curl' : 'php';
- } elseif ( $wgHTTPEngine == 'curl' && !function_exists( 'curl_init' ) ) {
- throw new MWException( __METHOD__.': curl (http://php.net/curl) is not installed, but $wgHTTPEngine is set to "curl"' );
+ /**
+ * Generate a new request object
+ * @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, $options = null ) {
+ if ( !Http::$httpEngine ) {
+ Http::$httpEngine = function_exists( 'curl_init' ) ? 'curl' : 'php';
+ } elseif ( Http::$httpEngine == 'curl' && !function_exists( 'curl_init' ) ) {
+ throw new MWException( __METHOD__ . ': curl (http://php.net/curl) is not installed, but' .
+ ' Http::$httpEngine is set to "curl"' );
}
- switch( $wgHTTPEngine ) {
- case 'curl':
- return new CurlHttpRequest( $url, $options );
- case 'php':
- if ( !wfIniGetBool( 'allow_url_fopen' ) ) {
- throw new MWException( __METHOD__.': allow_url_fopen needs to be enabled for pure PHP http requests to work. '.
- 'If possible, curl should be used instead. See http://php.net/curl.' );
- }
- return new PhpHttpRequest( $url, $options );
- default:
- throw new MWException( __METHOD__.': The setting of $wgHTTPEngine is not valid.' );
+ switch( Http::$httpEngine ) {
+ case 'curl':
+ return new CurlHttpRequest( $url, $options );
+ case 'php':
+ if ( !wfIniGetBool( 'allow_url_fopen' ) ) {
+ throw new MWException( __METHOD__ . ': allow_url_fopen needs to be enabled for pure PHP' .
+ ' http requests to work. If possible, curl should be used instead. See http://php.net/curl.' );
+ }
+ return new PhpHttpRequest( $url, $options );
+ default:
+ throw new MWException( __METHOD__ . ': The setting of Http::$httpEngine is not valid.' );
}
}
/**
* Get the body, or content, of the response to the request
- * @return string
+ *
+ * @return String
*/
public function getContent() {
return $this->content;
}
+ /**
+ * Set the parameters of the request
+
+ * @param $args Array
+ * @todo overload the args param
+ */
+ public function setData( $args ) {
+ $this->postData = $args;
+ }
+
/**
* Take care of setting up the proxy
* (override in subclass)
- * @return string
+ *
+ * @return String
*/
public function proxySetup() {
global $wgHTTPProxy;
-
if ( $this->proxy ) {
return;
}
+
if ( Http::isLocalURL( $this->url ) ) {
- $this->proxy = 'http://localhost:80/';
+ $this->proxy = '';
} elseif ( $wgHTTPProxy ) {
$this->proxy = $wgHTTPProxy ;
+ } elseif ( getenv( "http_proxy" ) ) {
+ $this->proxy = getenv( "http_proxy" );
}
}
* Set the refererer header
*/
public function setReferer( $url ) {
- $this->setHeader('Referer', $url);
+ $this->setHeader( 'Referer', $url );
}
/**
* Set the user agent
+ * @param $UA string
*/
public function setUserAgent( $UA ) {
- $this->setHeader('User-Agent', $UA);
+ $this->setHeader( 'User-Agent', $UA );
}
/**
* Set an arbitrary header
+ * @param $name
+ * @param $value
*/
- public function setHeader($name, $value) {
+ public function setHeader( $name, $value ) {
// I feel like I should normalize the case here...
$this->reqHeaders[$name] = $value;
}
/**
* Get an array of the headers
+ * @return array
*/
public function getHeaderList() {
$list = array();
- foreach($this->reqHeaders as $name => $value) {
+ if ( $this->cookieJar ) {
+ $this->reqHeaders['Cookie'] =
+ $this->cookieJar->serializeToHttpRequest(
+ $this->parsedUrl['path'],
+ $this->parsedUrl['host']
+ );
+ }
+
+ foreach ( $this->reqHeaders as $name => $value ) {
$list[] = "$name: $value";
}
+
return $list;
}
/**
- * Set the callback
- * @param $callback 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;
}
/**
- * A generic callback to read in the response from a remote server
+ * A generic callback to read the body of the response from a remote
+ * server.
+ *
* @param $fh handle
- * @param $content string
+ * @param $content String
*/
public function read( $fh, $content ) {
$this->content .= $content;
/**
* Take care of whatever is necessary to perform the URI request.
+ *
* @return Status
*/
public function execute() {
global $wgTitle;
- if( strtoupper($this->method) == "HEAD" ) {
- $this->headersOnly = true;
- }
+ $this->content = "";
- if ( is_array( $this->postData ) ) {
- $this->postData = wfArrayToCGI( $this->postData );
+ if ( strtoupper( $this->method ) == "HEAD" ) {
+ $this->headersOnly = true;
}
- if ( is_object( $wgTitle ) && !isset($this->reqHeaders['Referer']) ) {
- $this->setReferer( $wgTitle->getFullURL() );
+ if ( is_object( $wgTitle ) && !isset( $this->reqHeaders['Referer'] ) ) {
+ $this->setReferer( wfExpandUrl( $wgTitle->getFullURL(), PROTO_CURRENT ) );
}
if ( !$this->noProxy ) {
$this->setCallback( array( $this, 'read' ) );
}
- if ( !isset($this->reqHeaders['User-Agent']) ) {
- $this->setUserAgent(Http::userAgent());
+ if ( !isset( $this->reqHeaders['User-Agent'] ) ) {
+ $this->setUserAgent( Http::userAgent() );
+ }
+ }
+
+ /**
+ * 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 = "";
+
+ foreach ( $this->headerList as $header ) {
+ if ( preg_match( "#^HTTP/([0-9.]+) (.*)#", $header, $match ) ) {
+ $this->respVersion = $match[1];
+ $this->respStatus = $match[2];
+ } elseif ( preg_match( "#^[ \t]#", $header ) ) {
+ $last = count( $this->respHeaders[$lastname] ) - 1;
+ $this->respHeaders[$lastname][$last] .= "\r\n$header";
+ } elseif ( preg_match( "#^([^:]*):[\t ]*(.*)#", $header, $match ) ) {
+ $this->respHeaders[strtolower( $match[1] )][] = $match[2];
+ $lastname = strtolower( $match[1] );
+ }
+ }
+
+ $this->parseCookies();
+ }
+
+ /**
+ * Sets HTTPRequest status member to a fatal value with the error
+ * message if the returned integer value of the status code was
+ * not successful (< 300) or a redirect (>=300 and < 400). (see
+ * RFC2616, section 10,
+ * http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html for a
+ * list of status codes.)
+ *
+ * @return nothing
+ */
+ protected function setStatus() {
+ if ( !$this->respHeaders ) {
+ $this->parseHeader();
+ }
+
+ if ( (int)$this->respStatus > 399 ) {
+ list( $code, $message ) = explode( " ", $this->respStatus, 2 );
+ $this->status->fatal( "http-bad-status", $code, $message );
+ }
+ }
+
+ /**
+ * Get the integer value of the HTTP status code (e.g. 200 for "200 Ok")
+ * (see RFC2616, section 10, http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
+ * for a list of status codes.)
+ *
+ * @return Integer
+ */
+ public function getStatus() {
+ if ( !$this->respHeaders ) {
+ $this->parseHeader();
+ }
+
+ return (int)$this->respStatus;
+ }
+
+
+ /**
+ * Returns true if the last status code was a redirect.
+ *
+ * @return Boolean
+ */
+ public function isRedirect() {
+ if ( !$this->respHeaders ) {
+ $this->parseHeader();
+ }
+
+ $status = (int)$this->respStatus;
+
+ if ( $status >= 300 && $status <= 303 ) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Returns an associative array of response headers after the
+ * request has been executed. Because some headers
+ * (e.g. Set-Cookie) can appear more than once the, each value of
+ * the associative array is an array of the values given.
+ *
+ * @return Array
+ */
+ public function getResponseHeaders() {
+ if ( !$this->respHeaders ) {
+ $this->parseHeader();
+ }
+
+ return $this->respHeaders;
+ }
+
+ /**
+ * Returns the value of the given response header.
+ *
+ * @param $header String
+ * @return String
+ */
+ public function getResponseHeader( $header ) {
+ if ( !$this->respHeaders ) {
+ $this->parseHeader();
+ }
+
+ if ( isset( $this->respHeaders[strtolower ( $header ) ] ) ) {
+ $v = $this->respHeaders[strtolower ( $header ) ];
+ return $v[count( $v ) - 1];
+ }
+
+ return null;
+ }
+
+ /**
+ * Tells the MWHttpRequest object to use this pre-loaded CookieJar.
+ *
+ * @param $jar CookieJar
+ */
+ public function setCookieJar( $jar ) {
+ $this->cookieJar = $jar;
+ }
+
+ /**
+ * Returns the cookie jar in use.
+ *
+ * @return CookieJar
+ */
+ public function getCookieJar() {
+ if ( !$this->respHeaders ) {
+ $this->parseHeader();
+ }
+
+ return $this->cookieJar;
+ }
+
+ /**
+ * Sets a cookie. Used before a request to set up any individual
+ * 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 ) {
+ $this->cookieJar = new CookieJar;
+ }
+
+ $this->cookieJar->setCookie( $name, $value, $attr );
+ }
+
+ /**
+ * Parse the cookies in the response headers and store them in the cookie jar.
+ */
+ protected function parseCookies() {
+ if ( !$this->cookieJar ) {
+ $this->cookieJar = new CookieJar;
+ }
+
+ if ( isset( $this->respHeaders['set-cookie'] ) ) {
+ $url = parse_url( $this->getFinalUrl() );
+ foreach ( $this->respHeaders['set-cookie'] as $cookie ) {
+ $this->cookieJar->parseCookieResponseHeader( $cookie, $url['host'] );
+ }
+ }
+ }
+
+ /**
+ * Returns the final URL after all redirections.
+ *
+ * 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() {
+ $headers = $this->getResponseHeaders();
+
+ //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;
}
}
/**
- * HttpRequest implemented using internal curl compiled into PHP
+ * MWHttpRequest implemented using internal curl compiled into PHP
*/
-class CurlHttpRequest extends HttpRequest {
+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( $content );
+ }
public function execute() {
parent::execute();
+
if ( !$this->status->isOK() ) {
return $this->status;
}
- // A lot of the action up front should probably be in
- // set* methods, but we'll leave that for another time.
-
$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'])) {
+ if ( isset( $this->reqHeaders['Referer'] ) ) {
$this->curlOptions[CURLOPT_REFERER] = $this->reqHeaders['Referer'];
}
$this->curlOptions[CURLOPT_USERAGENT] = $this->reqHeaders['User-Agent'];
- if ( $this->sslVerifyHost ) {
+ 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;
}
$this->curlOptions[CURLOPT_HTTPHEADER] = $this->getHeaderList();
$curlHandle = curl_init( $this->url );
- curl_setopt_array( $curlHandle, $this->curlOptions );
+
+ if ( !curl_setopt_array( $curlHandle, $this->curlOptions ) ) {
+ throw new MWException( "Error setting curl options." );
+ }
+
+ if ( $this->followRedirects && $this->canFollowRedirects() ) {
+ wfSuppressWarnings();
+ 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
+ }
+ wfRestoreWarnings();
+ }
if ( false === curl_exec( $curlHandle ) ) {
- // re-using already translated error messages
- $this->status->fatal( 'upload-curl-error'.curl_errno( $curlHandle ).'-text' );
+ $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;
}
+
+ /**
+ * @return bool
+ */
+ 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 HttpRequest {
- private $fh;
+class PhpHttpRequest extends MWHttpRequest {
+ /**
+ * @param $url string
+ * @return string
+ */
protected function urlToTcp( $url ) {
$parsedUrl = parse_url( $url );
}
public function execute() {
- if ( $this->parsedUrl['scheme'] != 'http' ) {
- $this->status->fatal( 'http-invalid-scheme', $this->parsedURL['scheme'] );
- }
-
parent::execute();
- if ( !$this->status->isOK() ) {
- return $this->status;
+
+ if ( is_array( $this->postData ) ) {
+ $this->postData = wfArrayToCGI( $this->postData );
}
- // A lot of the action up front should probably be in
- // set* methods, but we'll leave that for another time.
+ if ( $this->parsedUrl['scheme'] != 'http' &&
+ $this->parsedUrl['scheme'] != 'https' ) {
+ $this->status->fatal( 'http-invalid-scheme', $this->parsedUrl['scheme'] );
+ }
$this->reqHeaders['Accept'] = "*/*";
if ( $this->method == 'POST' ) {
$options['request_fulluri'] = true;
}
+ if ( !$this->followRedirects ) {
+ $options['max_redirects'] = 0;
+ } else {
+ $options['max_redirects'] = $this->maxRedirects;
+ }
+
$options['method'] = $this->method;
- $options['timeout'] = $this->timeout;
- $options['header'] = implode("\r\n", $this->getHeaderList());
- // FOR NOW: Force everyone to HTTP 1.0
- /* if ( version_compare( "5.3.0", phpversion(), ">" ) ) { */
- $options['protocol_version'] = "1.0";
- /* } else { */
- /* $options['protocol_version'] = "1.1"; */
- /* } */
+ $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;
}
+ $options['timeout'] = $this->timeout;
+
$context = stream_context_create( array( 'http' => $options ) );
- try {
- $this->fh = fopen( $this->url, "r", false, $context );
- } catch ( Exception $e ) {
- $this->status->fatal( $e->getMessage() ); /* need some l10n help */
+
+ $this->headerList = array();
+ $reqCount = 0;
+ $url = $this->url;
+
+ $result = array();
+
+ do {
+ $reqCount++;
+ wfSuppressWarnings();
+ $fh = fopen( $url, "r", false, $context );
+ wfRestoreWarnings();
+
+ if ( !$fh ) {
+ break;
+ }
+
+ $result = stream_get_meta_data( $fh );
+ $this->headerList = $result['wrapper_data'];
+ $this->parseHeader();
+
+ if ( !$this->followRedirects ) {
+ break;
+ }
+
+ # Handle manual redirection
+ if ( !$this->isRedirect() || $reqCount > $this->maxRedirects ) {
+ break;
+ }
+ # Check security of URL
+ $url = $this->getResponseHeader( "Location" );
+
+ if ( !Http::isValidURI( $url ) ) {
+ wfDebug( __METHOD__ . ": insecure redirection\n" );
+ break;
+ }
+ } while ( true );
+
+ $this->setStatus();
+
+ if ( $fh === false ) {
+ $this->status->fatal( 'http-request-error' );
return $this->status;
}
- $result = stream_get_meta_data( $this->fh );
if ( $result['timed_out'] ) {
$this->status->fatal( 'http-timed-out', $this->url );
return $this->status;
}
- $this->headers = $result['wrapper_data'];
+ // 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 );
- $end = false;
- while ( !$end ) {
- $contents = fread( $this->fh, 8192 );
- $size = 0;
- if ( $contents ) {
- $size = call_user_func_array( $this->callback, array( $this->fh, $contents ) );
+ if ( $buf === false ) {
+ $this->status->fatal( 'http-read-error' );
+ break;
+ }
+
+ if ( strlen( $buf ) ) {
+ call_user_func( $this->callback, $fh, $buf );
+ }
}
- $end = ( $size == 0 ) || feof( $this->fh );
}
- fclose( $this->fh );
+ fclose( $fh );
return $this->status;
}
dépôts / lhc / web / wiklou.git / blobdiff