10 const SYNC_DOWNLOAD
= 1; // syncronys upload (in a single request)
11 const ASYNC_DOWNLOAD
= 2; // asynchronous upload we should spawn out another process and monitor progress if possible)
15 public static function request( $method, $url, $opts = array() ){
16 $opts['method'] = ( strtoupper( $method ) == 'GET' ||
strtoupper( $method ) == 'POST' ) ?
strtoupper( $method ) : null;
17 $req = new HttpRequest( $url, $opts );
18 $status = $req->doRequest();
19 if( $status->isOK() ){
20 return $status->value
;
22 wfDebug( 'http error: ' . $status->getWikiText() );
28 * Simple wrapper for Http::request( 'GET' )
30 public static function get( $url, $timeout = false ) {
33 $opts['timeout'] = $timeout;
34 return Http
::request( 'GET', $url, $opts );
38 * Simple wrapper for Http::request( 'POST' )
40 public static function post( $url, $opts = array() ) {
41 return Http
::request( 'POST', $url, $opts );
44 public static function doDownload( $url, $target_file_path, $dl_mode = self
::SYNC_DOWNLOAD
, $redirectCount = 0 ){
45 global $wgPhpCli, $wgMaxUploadSize, $wgMaxRedirects;
46 // do a quick check to HEAD to insure the file size is not > $wgMaxUploadSize
47 $headRequest = new HttpRequest( $url, array( 'headers_only' => true ) );
48 $headResponse = $headRequest->doRequest();
49 if( !$headResponse->isOK() ){
52 $head = $headResponse->value
;
54 // check for redirects:
55 if( isset( $head['Location'] ) && strrpos( $head[0], '302' ) !== false ){
56 if( $redirectCount < $wgMaxRedirects ){
57 if( UploadFromUrl
::isValidURI( $head['Location'] ) ){
58 return self
::doDownload( $head['Location'], $target_file_path, $dl_mode, $redirectCount++
);
60 return Status
::newFatal( 'upload-proto-error' );
63 return Status
::newFatal( 'upload-too-many-redirects' );
66 // we did not get a 200 ok response:
67 if( strrpos( $head[0], '200 OK' ) === false ){
68 return Status
::newFatal( 'upload-http-error', htmlspecialchars( $head[0] ) );
71 $content_length = ( isset( $head['Content-Length'] ) ) ?
$head['Content-Length'] : null;
72 if( $content_length ){
73 if( $content_length > $wgMaxUploadSize ){
74 return Status
::newFatal( 'requested file length ' . $content_length . ' is greater than $wgMaxUploadSize: ' . $wgMaxUploadSize );
78 // check if we can find phpCliPath (for doing a background shell request to php to do the download:
79 if( $wgPhpCli && wfShellExecEnabled() && $dl_mode == self
::ASYNC_DOWNLOAD
){
80 wfDebug( __METHOD__
. "\ASYNC_DOWNLOAD\n" );
81 // setup session and shell call:
82 return self
::initBackgroundDownload( $url, $target_file_path, $content_length );
83 } else if( $dl_mode == self
::SYNC_DOWNLOAD
){
84 wfDebug( __METHOD__
. "\nSYNC_DOWNLOAD\n" );
85 // SYNC_DOWNLOAD download as much as we can in the time we have to execute
86 $opts['method'] = 'GET';
87 $opts['target_file_path'] = $target_file_path;
88 $req = new HttpRequest( $url, $opts );
89 return $req->doRequest();
94 * a non blocking request (generally an exit point in the application)
95 * should write to a file location and give updates
98 private static function initBackgroundDownload( $url, $target_file_path, $content_length = null ){
99 global $wgMaxUploadSize, $IP, $wgPhpCli, $wgServer;
100 $status = Status
::newGood();
102 // generate a session id with all the details for the download (pid, target_file_path )
103 $upload_session_key = self
::getUploadSessionKey();
104 $session_id = session_id();
106 // store the url and target path:
107 $_SESSION['wsDownload'][$upload_session_key]['url'] = $url;
108 $_SESSION['wsDownload'][$upload_session_key]['target_file_path'] = $target_file_path;
109 // since we request from the cmd line we lose the original host name pass in the session:
110 $_SESSION['wsDownload'][$upload_session_key]['orgServer'] = $wgServer;
112 if( $content_length )
113 $_SESSION['wsDownload'][$upload_session_key]['content_length'] = $content_length;
115 // set initial loaded bytes:
116 $_SESSION['wsDownload'][$upload_session_key]['loaded'] = 0;
118 // run the background download request:
119 $cmd = $wgPhpCli . ' ' . $IP . "/maintenance/http_session_download.php --sid {$session_id} --usk {$upload_session_key}";
120 $pid = wfShellBackgroundExec( $cmd );
121 // the pid is not of much use since we won't be visiting this same apache any-time soon.
123 return Status
::newFatal( 'could not run background shell exec' );
125 // update the status value with the $upload_session_key (for the user to check on the status of the upload)
126 $status->value
= $upload_session_key;
128 // return good status
132 static function getUploadSessionKey(){
133 $key = mt_rand( 0, 0x7fffffff );
134 $_SESSION['wsUploadData'][$key] = array();
139 * used to run a session based download. Is initiated via the shell.
141 * @param $session_id String: the session id to grab download details from
142 * @param $upload_session_key String: the key of the given upload session
143 * (a given client could have started a few http uploads at once)
145 public static function doSessionIdDownload( $session_id, $upload_session_key ){
146 global $wgUser, $wgEnableWriteAPI, $wgAsyncHTTPTimeout, $wgServer;
147 wfDebug( __METHOD__
. "\n\ndoSessionIdDownload:\n\n" );
149 // set session to the provided key:
150 session_id( $session_id );
152 if( session_start() === false ){
153 wfDebug( __METHOD__
. ' could not start session' );
155 // get all the vars we need from session_id
156 if( !isset( $_SESSION[ 'wsDownload' ][$upload_session_key] ) ){
157 wfDebug( __METHOD__
. ' Error:could not find upload session');
160 // setup the global user from the session key we just inherited
161 $wgUser = User
::newFromSession();
163 // grab the session data to setup the request:
164 $sd =& $_SESSION['wsDownload'][$upload_session_key];
166 // update the wgServer var ( since cmd line thinks we are localhost when we are really orgServer)
167 if( isset( $sd['orgServer'] ) && $sd['orgServer'] ){
168 $wgServer = $sd['orgServer'];
170 // close down the session so we can other http queries can get session updates:
171 session_write_close();
173 $req = new HttpRequest( $sd['url'], array(
174 'target_file_path' => $sd['target_file_path'],
175 'upload_session_key'=> $upload_session_key,
176 'timeout' => $wgAsyncHTTPTimeout
178 // run the actual request .. (this can take some time)
179 wfDebug( __METHOD__
. 'do Request: ' . $sd['url'] . ' tf: ' . $sd['target_file_path'] );
180 $status = $req->doRequest();
181 //wfDebug("done with req status is: ". $status->isOK(). ' '.$status->getWikiText(). "\n");
183 // start up the session again:
184 if( session_start() === false ){
185 wfDebug( __METHOD__
. ' ERROR:: Could not start session');
187 // grab the updated session data pointer
188 $sd =& $_SESSION['wsDownload'][$upload_session_key];
189 // if error update status:
190 if( !$status->isOK() ){
191 $sd['apiUploadResult'] = ApiFormatJson
::getJsonEncode(
192 array( 'error' => $status->getWikiText() )
195 // if status okay process upload using fauxReq to api:
196 if( $status->isOK() ){
197 // setup the FauxRequest
198 $fauxReqData = $sd['mParams'];
200 // Fix boolean parameters
201 foreach( $fauxReqData as $k => $v ) {
203 unset( $fauxReqData[$k] );
206 $fauxReqData['action'] = 'upload';
207 $fauxReqData['format'] = 'json';
208 $fauxReqData['internalhttpsession'] = $upload_session_key;
209 // evil but no other clean way about it:
210 $faxReq = new FauxRequest( $fauxReqData, true );
211 $processor = new ApiMain( $faxReq, $wgEnableWriteAPI );
213 //init the mUpload var for the $processor
214 $processor->execute();
215 $processor->getResult()->cleanUpUTF8();
216 $printer = $processor->createPrinterByName( 'json' );
217 $printer->initPrinter( false );
220 $apiUploadResult = ob_get_clean();
222 wfDebug( __METHOD__
. "\n\n got api result:: $apiUploadResult \n" );
223 // the status updates runner will grab the result form the session:
224 $sd['apiUploadResult'] = $apiUploadResult;
226 // close the session:
227 session_write_close();
231 * Check if the URL can be served by localhost
232 * @param $url string Full url to check
235 public static function isLocalURL( $url ) {
236 global $wgCommandLineMode, $wgConf;
237 if ( $wgCommandLineMode ) {
243 if ( preg_match( '!^http://([\w.-]+)[/:].*$!', $url, $matches ) ) {
246 $domainParts = explode( '.', $host );
247 // Check if this domain or any superdomain is listed in $wgConf as a local virtual host
248 $domainParts = array_reverse( $domainParts );
249 for ( $i = 0; $i < count( $domainParts ); $i++
) {
250 $domainPart = $domainParts[$i];
252 $domain = $domainPart;
254 $domain = $domainPart . '.' . $domain;
256 if ( $wgConf->isLocalVHost( $domain ) ) {
265 * Return a standard user-agent we can use for external requests.
267 public static function userAgent() {
269 return "MediaWiki/$wgVersion";
274 var $target_file_path;
275 var $upload_session_key;
277 function __construct( $url, $opt ){
278 global $wgSyncHTTPTimeout;
279 // double check that it's a valid url:
282 // set the timeout to default sync timeout (unless the timeout option is provided)
283 $this->timeout
= ( isset( $opt['timeout'] ) ) ?
$opt['timeout'] : $wgSyncHTTPTimeout;
284 $this->method
= ( isset( $opt['method'] ) ) ?
$opt['method'] : 'GET';
285 $this->target_file_path
= ( isset( $opt['target_file_path'] ) ) ?
$opt['target_file_path'] : false;
286 $this->upload_session_key
= ( isset( $opt['upload_session_key'] ) ) ?
$opt['upload_session_key'] : false;
287 $this->headers_only
= ( isset( $opt['headers_only'] ) ) ?
$opt['headers_only'] : false;
291 * Get the contents of a file by HTTP
292 * @param $url string Full URL to act on
293 * @param $Opt associative array Optional array of options:
294 * 'method' => 'GET', 'POST' etc.
295 * 'target_file_path' => if curl should output to a target file
296 * 'adapter' => 'curl', 'soket'
298 public function doRequest() {
299 # Make sure we have a valid url
300 if( !UploadFromUrl
::isValidURI( $this->url
) )
301 return Status
::newFatal('bad-url');
303 # Use curl if available
304 if ( function_exists( 'curl_init' ) ) {
305 return $this->doCurlReq();
307 return $this->doPhpReq();
311 private function doCurlReq(){
312 global $wgHTTPProxy, $wgTitle;
314 $status = Status
::newGood();
315 $c = curl_init( $this->url
);
318 if ( Http
::isLocalURL( $this->url
) ) {
319 curl_setopt( $c, CURLOPT_PROXY
, 'localhost:80' );
320 } else if ( $wgHTTPProxy ) {
321 curl_setopt( $c, CURLOPT_PROXY
, $wgHTTPProxy );
324 curl_setopt( $c, CURLOPT_TIMEOUT
, $this->timeout
);
325 curl_setopt( $c, CURLOPT_USERAGENT
, Http
::userAgent() );
327 if ( $this->headers_only
) {
328 curl_setopt( $c, CURLOPT_NOBODY
, true );
329 curl_setopt( $c, CURLOPT_HEADER
, true );
330 } elseif ( $this->method
== 'POST' ) {
331 curl_setopt( $c, CURLOPT_POST
, true );
332 curl_setopt( $c, CURLOPT_POSTFIELDS
, '' );
334 curl_setopt( $c, CURLOPT_CUSTOMREQUEST
, $this->method
);
337 # Set the referer to $wgTitle, even in command-line mode
338 # This is useful for interwiki transclusion, where the foreign
339 # server wants to know what the referring page is.
340 # $_SERVER['REQUEST_URI'] gives a less reliable indication of the
342 if ( is_object( $wgTitle ) ) {
343 curl_setopt( $c, CURLOPT_REFERER
, $wgTitle->getFullURL() );
346 // set the write back function (if we are writing to a file)
347 if( $this->target_file_path
){
348 $cwrite = new simpleFileWriter( $this->target_file_path
, $this->upload_session_key
);
349 if( !$cwrite->status
->isOK() ){
350 wfDebug( __METHOD__
. "ERROR in setting up simpleFileWriter\n" );
351 $status = $cwrite->status
;
354 curl_setopt( $c, CURLOPT_WRITEFUNCTION
, array( $cwrite, 'callbackWriteBody' ) );
357 // start output grabber:
358 if( !$this->target_file_path
)
361 //run the actual curl_exec:
363 if ( false === curl_exec( $c ) ) {
364 $error_txt ='Error sending request: #' . curl_errno( $c ) .' '. curl_error( $c );
365 wfDebug( __METHOD__
. $error_txt . "\n" );
366 $status = Status
::newFatal( $error_txt );
368 } catch ( Exception
$e ) {
369 // do something with curl exec error?
371 // if direct request output the results to the stats value:
372 if( !$this->target_file_path
&& $status->isOK() ){
373 $status->value
= ob_get_contents();
376 // if we wrote to a target file close up or return error
377 if( $this->target_file_path
){
379 if( !$cwrite->status
->isOK() ){
380 return $cwrite->status
;
384 if ( $this->headers_only
) {
385 $headers = explode( "\n", $status->value
);
386 $headerArray = array();
387 foreach ( $headers as $header ) {
388 if ( !strlen( trim( $header ) ) )
390 $headerParts = explode( ':', $header, 2 );
391 if ( count( $headerParts ) == 1 ) {
392 $headerArray[] = trim( $header );
394 list( $key, $val ) = $headerParts;
395 $headerArray[trim( $key )] = trim( $val );
398 $status->value
= $headerArray;
400 # Don't return the text of error messages, return false on error
401 $retcode = curl_getinfo( $c, CURLINFO_HTTP_CODE
);
402 if ( $retcode != 200 ) {
403 wfDebug( __METHOD__
. ": HTTP return code $retcode\n" );
404 $status = Status
::newFatal( "HTTP return code $retcode\n" );
406 # Don't return truncated output
407 $errno = curl_errno( $c );
408 if ( $errno != CURLE_OK
) {
409 $errstr = curl_error( $c );
410 wfDebug( __METHOD__
. ": CURL error code $errno: $errstr\n" );
411 $status = Status
::newFatal( " CURL error code $errno: $errstr\n" );
417 // return the result obj
421 public function doPhpReq(){
422 global $wgTitle, $wgHTTPProxy;
424 # Check for php.ini allow_url_fopen
425 if( !ini_get( 'allow_url_fopen' ) ){
426 return Status
::newFatal( 'allow_url_fopen needs to be enabled for http copy to work' );
429 // start with good status:
430 $status = Status
::newGood();
432 if ( $this->headers_only
) {
433 $status->value
= get_headers( $this->url
, 1 );
438 $headers = array( "User-Agent: " . Http
::userAgent() );
439 if ( is_object( $wgTitle ) ) {
440 $headers[] = "Referer: ". $wgTitle->getFullURL();
443 if( strcasecmp( $this->method
, 'post' ) == 0 ) {
444 // Required for HTTP 1.0 POSTs
445 $headers[] = "Content-Length: 0";
447 $fcontext = stream_context_create ( array(
449 'method' => $this->method
,
450 'header' => implode( "\r\n", $headers ),
451 'timeout' => $this->timeout
)
455 $fh = fopen( $this->url
, "r", false, $fcontext);
457 // set the write back function (if we are writing to a file)
458 if( $this->target_file_path
){
459 $cwrite = new simpleFileWriter( $this->target_file_path
, $this->upload_session_key
);
460 if( !$cwrite->status
->isOK() ){
461 wfDebug( __METHOD__
. "ERROR in setting up simpleFileWriter\n" );
462 $status = $cwrite->status
;
466 // read $fh into the simpleFileWriter (grab in 64K chunks since its likely a media file)
467 while ( !feof( $fh ) ) {
468 $contents = fread( $fh, 65536 );
469 $cwrite->callbackWriteBody( $fh, $contents );
473 // check for simpleFileWriter error:
474 if( !$cwrite->status
->isOK() ){
475 return $cwrite->status
;
478 // read $fh into status->value
479 $status->value
= @stream_get_contents
( $fh );
481 //close the url file wrapper
485 if( $status->value
=== false ){
486 $status->error( 'file_get_contents-failed' );
494 * a simpleFileWriter with session id updates
496 class simpleFileWriter
{
497 var $target_file_path;
499 var $session_id = null;
500 var $session_update_interval = 0; // how often to update the session while downloading
502 function simpleFileWriter( $target_file_path, $upload_session_key ){
503 $this->target_file_path
= $target_file_path;
504 $this->upload_session_key
= $upload_session_key;
505 $this->status
= Status
::newGood();
507 $this->fp
= fopen( $this->target_file_path
, 'w' );
508 if( $this->fp
=== false ){
509 $this->status
= Status
::newFatal( 'HTTP::could-not-open-file-for-writing' );
512 $this->prevTime
= time();
515 public function callbackWriteBody( $ch, $data_packet ){
516 global $wgMaxUploadSize;
518 // write out the content
519 if( fwrite( $this->fp
, $data_packet ) === false ){
520 wfDebug( __METHOD__
." ::could-not-write-to-file\n" );
521 $this->status
= Status
::newFatal( 'HTTP::could-not-write-to-file' );
527 $this->current_fsize
= filesize( $this->target_file_path
);
529 if( $this->current_fsize
> $wgMaxUploadSize ){
530 wfDebug( __METHOD__
. " ::http download too large\n" );
531 $this->status
= Status
::newFatal( 'HTTP::file-has-grown-beyond-upload-limit-killing: downloaded more than ' .
532 Language
::formatSize( $wgMaxUploadSize ) . ' ' );
536 // if more than session_update_interval second have passed update_session_progress
537 if( $this->upload_session_key
&& ( ( time() - $this->prevTime
) > $this->session_update_interval
) ) {
538 $this->prevTime
= time();
539 $session_status = $this->update_session_progress();
540 if( !$session_status->isOK() ){
541 $this->status
= $session_status;
542 wfDebug( __METHOD__
. ' update session failed or was canceled');
546 return strlen( $data_packet );
549 public function update_session_progress(){
550 $status = Status
::newGood();
552 if( session_start() === false){
553 wfDebug( __METHOD__
. ' could not start session' );
556 $sd =& $_SESSION['wsDownload'][$this->upload_session_key
];
557 // check if the user canceled the request:
558 if( isset( $sd['user_cancel'] ) && $sd['user_cancel'] == true ){
560 return Status
::newFatal( 'user-canceled-request' );
562 // update the progress bytes download so far:
563 $sd['loaded'] = $this->current_fsize
;
564 wfDebug( __METHOD__
. ': set session loaded amount to: ' . $sd['loaded'] . "\n");
565 // close down the session so we can other http queries can get session updates:
566 session_write_close();
570 public function close(){
571 // do a final session update:
572 $this->update_session_progress();
573 // close up the file handle:
574 if( false === fclose( $this->fp
) ){
575 $this->status
= Status
::newFatal( 'HTTP::could-not-close-file' );