MediaWiki  1.28.0
CurlHttpRequest.php
Go to the documentation of this file.
1 <?php
25  const SUPPORTS_FILE_POSTS = true;
26 
27  protected $curlOptions = [];
28  protected $headerText = "";
29 
35  protected function readHeader( $fh, $content ) {
36  $this->headerText .= $content;
37  return strlen( $content );
38  }
39 
40  public function execute() {
41 
43 
44  if ( !$this->status->isOK() ) {
45  return $this->status;
46  }
47 
48  $this->curlOptions[CURLOPT_PROXY] = $this->proxy;
49  $this->curlOptions[CURLOPT_TIMEOUT] = $this->timeout;
50 
51  // Only supported in curl >= 7.16.2
52  if ( defined( 'CURLOPT_CONNECTTIMEOUT_MS' ) ) {
53  $this->curlOptions[CURLOPT_CONNECTTIMEOUT_MS] = $this->connectTimeout * 1000;
54  }
55 
56  $this->curlOptions[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_0;
57  $this->curlOptions[CURLOPT_WRITEFUNCTION] = $this->callback;
58  $this->curlOptions[CURLOPT_HEADERFUNCTION] = [ $this, "readHeader" ];
59  $this->curlOptions[CURLOPT_MAXREDIRS] = $this->maxRedirects;
60  $this->curlOptions[CURLOPT_ENCODING] = ""; # Enable compression
61 
62  $this->curlOptions[CURLOPT_USERAGENT] = $this->reqHeaders['User-Agent'];
63 
64  $this->curlOptions[CURLOPT_SSL_VERIFYHOST] = $this->sslVerifyHost ? 2 : 0;
65  $this->curlOptions[CURLOPT_SSL_VERIFYPEER] = $this->sslVerifyCert;
66 
67  if ( $this->caInfo ) {
68  $this->curlOptions[CURLOPT_CAINFO] = $this->caInfo;
69  }
70 
71  if ( $this->headersOnly ) {
72  $this->curlOptions[CURLOPT_NOBODY] = true;
73  $this->curlOptions[CURLOPT_HEADER] = true;
74  } elseif ( $this->method == 'POST' ) {
75  $this->curlOptions[CURLOPT_POST] = true;
77  // Don't interpret POST parameters starting with '@' as file uploads, because this
78  // makes it impossible to POST plain values starting with '@' (and causes security
79  // issues potentially exposing the contents of local files).
80  // The PHP manual says this option was introduced in PHP 5.5 defaults to true in PHP 5.6,
81  // but we support lower versions, and the option doesn't exist in HHVM 5.6.99.
82  if ( defined( 'CURLOPT_SAFE_UPLOAD' ) ) {
83  $this->curlOptions[CURLOPT_SAFE_UPLOAD] = true;
84  } elseif ( is_array( $postData ) ) {
85  // In PHP 5.2 and later, '@' is interpreted as a file upload if POSTFIELDS
86  // is an array, but not if it's a string. So convert $req['body'] to a string
87  // for safety.
89  }
90  $this->curlOptions[CURLOPT_POSTFIELDS] = $postData;
91 
92  // Suppress 'Expect: 100-continue' header, as some servers
93  // will reject it with a 417 and Curl won't auto retry
94  // with HTTP 1.0 fallback
95  $this->reqHeaders['Expect'] = '';
96  } else {
97  $this->curlOptions[CURLOPT_CUSTOMREQUEST] = $this->method;
98  }
99 
100  $this->curlOptions[CURLOPT_HTTPHEADER] = $this->getHeaderList();
101 
102  $curlHandle = curl_init( $this->url );
103 
104  if ( !curl_setopt_array( $curlHandle, $this->curlOptions ) ) {
105  throw new MWException( "Error setting curl options." );
106  }
107 
108  if ( $this->followRedirects && $this->canFollowRedirects() ) {
109  MediaWiki\suppressWarnings();
110  if ( !curl_setopt( $curlHandle, CURLOPT_FOLLOWLOCATION, true ) ) {
111  $this->logger->debug( __METHOD__ . ": Couldn't set CURLOPT_FOLLOWLOCATION. " .
112  "Probably open_basedir is set.\n" );
113  // Continue the processing. If it were in curl_setopt_array,
114  // processing would have halted on its entry
115  }
116  MediaWiki\restoreWarnings();
117  }
118 
119  if ( $this->profiler ) {
120  $profileSection = $this->profiler->scopedProfileIn(
121  __METHOD__ . '-' . $this->profileName
122  );
123  }
124 
125  $curlRes = curl_exec( $curlHandle );
126  if ( curl_errno( $curlHandle ) == CURLE_OPERATION_TIMEOUTED ) {
127  $this->status->fatal( 'http-timed-out', $this->url );
128  } elseif ( $curlRes === false ) {
129  $this->status->fatal( 'http-curl-error', curl_error( $curlHandle ) );
130  } else {
131  $this->headerList = explode( "\r\n", $this->headerText );
132  }
133 
134  curl_close( $curlHandle );
135 
136  if ( $this->profiler ) {
137  $this->profiler->scopedProfileOut( $profileSection );
138  }
139 
140  $this->parseHeader();
141  $this->setStatus();
142 
143  return $this->status;
144  }
145 
149  public function canFollowRedirects() {
150  $curlVersionInfo = curl_version();
151  if ( $curlVersionInfo['version_number'] < 0x071304 ) {
152  $this->logger->debug( "Cannot follow redirects with libcurl < 7.19.4 due to CVE-2009-0037\n" );
153  return false;
154  }
155 
156  if ( version_compare( PHP_VERSION, '5.6.0', '<' ) ) {
157  if ( strval( ini_get( 'open_basedir' ) ) !== '' ) {
158  $this->logger->debug( "Cannot follow redirects when open_basedir is set\n" );
159  return false;
160  }
161  }
162 
163  return true;
164  }
165 }
readHeader($fh, $content)
$batch execute()
MWHttpRequest implemented using internal curl compiled into PHP.
getHeaderList()
Get an array of the headers.
setStatus()
Sets HTTPRequest status member to a fatal value with the error message if the returned integer value ...
parseHeader()
Parses the headers, including the HTTP status code and any Set-Cookie headers.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
wfArrayToCgi($array1, $array2=null, $prefix= '')
This function takes one or two arrays as input, and returns a CGI-style string, e.g.