MediaWiki REL1_32
MediaTransformOutput.php
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1<?php
29abstract class MediaTransformOutput {
33 public $responsiveUrls = [];
34
36 protected $file;
37
39 protected $width;
40
42 protected $height;
43
45 protected $url;
46
48 protected $page;
49
51 protected $path;
52
54 protected $lang;
55
57 protected $storagePath = false;
58
62 public function getWidth() {
63 return $this->width;
64 }
65
69 public function getHeight() {
70 return $this->height;
71 }
72
76 public function getFile() {
77 return $this->file;
78 }
79
85 public function getExtension() {
86 return $this->path ? FileBackend::extensionFromPath( $this->path ) : false;
87 }
88
92 public function getUrl() {
93 return $this->url;
94 }
95
99 public function getStoragePath() {
100 return $this->storagePath;
101 }
102
107 public function setStoragePath( $storagePath ) {
108 $this->storagePath = $storagePath;
109 if ( $this->path === false ) {
110 $this->path = $storagePath;
111 }
112 }
113
134 abstract public function toHtml( $options = [] );
135
140 public function isError() {
141 return false;
142 }
143
155 public function hasFile() {
156 // If TRANSFORM_LATER, $this->path will be false.
157 // Note: a null path means "use the source file".
158 return ( !$this->isError() && ( $this->path || $this->path === null ) );
159 }
160
167 public function fileIsSource() {
168 return ( !$this->isError() && $this->path === null );
169 }
170
177 public function getLocalCopyPath() {
178 if ( $this->isError() ) {
179 return false;
180 } elseif ( $this->path === null ) {
181 return $this->file->getLocalRefPath(); // assume thumb was not scaled
182 } elseif ( FileBackend::isStoragePath( $this->path ) ) {
183 $be = $this->file->getRepo()->getBackend();
184 // The temp file will be process cached by FileBackend
185 $fsFile = $be->getLocalReference( [ 'src' => $this->path ] );
186
187 return $fsFile ? $fsFile->getPath() : false;
188 } else {
189 return $this->path; // may return false
190 }
191 }
192
200 public function streamFileWithStatus( $headers = [] ) {
201 if ( !$this->path ) {
202 return Status::newFatal( 'backend-fail-stream', '<no path>' );
203 } elseif ( FileBackend::isStoragePath( $this->path ) ) {
204 $be = $this->file->getRepo()->getBackend();
205 return $be->streamFile( [ 'src' => $this->path, 'headers' => $headers ] );
206 } else { // FS-file
207 $success = StreamFile::stream( $this->getLocalCopyPath(), $headers );
208 return $success ? Status::newGood() : Status::newFatal( 'backend-fail-stream', $this->path );
209 }
210 }
211
219 public function streamFile( $headers = [] ) {
220 $this->streamFileWithStatus( $headers )->isOK();
221 }
222
230 protected function linkWrap( $linkAttribs, $contents ) {
231 if ( $linkAttribs ) {
232 return Xml::tags( 'a', $linkAttribs, $contents );
233 } else {
234 return $contents;
235 }
236 }
237
243 public function getDescLinkAttribs( $title = null, $params = [] ) {
244 if ( is_array( $params ) ) {
245 $query = $params;
246 } else {
247 $query = [];
248 }
249 if ( $this->page && $this->page !== 1 ) {
250 $query['page'] = $this->page;
251 }
252 if ( $this->lang ) {
253 $query['lang'] = $this->lang;
254 }
255
256 if ( is_string( $params ) && $params !== '' ) {
257 $query = $params . '&' . wfArrayToCgi( $query );
258 }
259
260 $attribs = [
261 'href' => $this->file->getTitle()->getLocalURL( $query ),
262 'class' => 'image',
263 ];
264 if ( $title ) {
265 $attribs['title'] = $title;
266 }
267
268 return $attribs;
269 }
270}
271
290 function __construct( $file, $url, $path = false, $parameters = [] ) {
291 # Previous parameters:
292 # $file, $url, $width, $height, $path = false, $page = false
293
294 $defaults = [
295 'page' => false,
296 'lang' => false
297 ];
298
299 if ( is_array( $parameters ) ) {
300 $actualParams = $parameters + $defaults;
301 } else {
302 # Using old format, should convert. Later a warning could be added here.
303 $numArgs = func_num_args();
304 $actualParams = [
305 'width' => $path,
306 'height' => $parameters,
307 'page' => ( $numArgs > 5 ) ? func_get_arg( 5 ) : false
308 ] + $defaults;
309 $path = ( $numArgs > 4 ) ? func_get_arg( 4 ) : false;
310 }
311
312 $this->file = $file;
313 $this->url = $url;
314 $this->path = $path;
315
316 # These should be integers when they get here.
317 # If not, there's a bug somewhere. But let's at
318 # least produce valid HTML code regardless.
319 $this->width = round( $actualParams['width'] );
320 $this->height = round( $actualParams['height'] );
321
322 $this->page = $actualParams['page'];
323 $this->lang = $actualParams['lang'];
324 }
325
358 function toHtml( $options = [] ) {
359 if ( count( func_get_args() ) == 2 ) {
360 throw new MWException( __METHOD__ . ' called in the old style' );
361 }
362
363 $alt = $options['alt'] ?? '';
364
365 $query = $options['desc-query'] ?? '';
366
367 $attribs = [
368 'alt' => $alt,
369 'src' => $this->url,
370 ];
371
372 if ( !empty( $options['custom-url-link'] ) ) {
373 $linkAttribs = [ 'href' => $options['custom-url-link'] ];
374 if ( !empty( $options['title'] ) ) {
375 $linkAttribs['title'] = $options['title'];
376 }
377 if ( !empty( $options['custom-target-link'] ) ) {
378 $linkAttribs['target'] = $options['custom-target-link'];
379 } elseif ( !empty( $options['parser-extlink-target'] ) ) {
380 $linkAttribs['target'] = $options['parser-extlink-target'];
381 }
382 if ( !empty( $options['parser-extlink-rel'] ) ) {
383 $linkAttribs['rel'] = $options['parser-extlink-rel'];
384 }
385 } elseif ( !empty( $options['custom-title-link'] ) ) {
387 $title = $options['custom-title-link'];
388 $linkAttribs = [
389 'href' => $title->getLinkURL(),
390 'title' => empty( $options['title'] ) ? $title->getFullText() : $options['title']
391 ];
392 } elseif ( !empty( $options['desc-link'] ) ) {
393 $linkAttribs = $this->getDescLinkAttribs(
394 empty( $options['title'] ) ? null : $options['title'],
395 $query
396 );
397 } elseif ( !empty( $options['file-link'] ) ) {
398 $linkAttribs = [ 'href' => $this->file->getUrl() ];
399 } else {
400 $linkAttribs = false;
401 if ( !empty( $options['title'] ) ) {
402 $attribs['title'] = $options['title'];
403 }
404 }
405
406 if ( empty( $options['no-dimensions'] ) ) {
407 $attribs['width'] = $this->width;
408 $attribs['height'] = $this->height;
409 }
410 if ( !empty( $options['valign'] ) ) {
411 $attribs['style'] = "vertical-align: {$options['valign']}";
412 }
413 if ( !empty( $options['img-class'] ) ) {
414 $attribs['class'] = $options['img-class'];
415 }
416 if ( isset( $options['override-height'] ) ) {
417 $attribs['height'] = $options['override-height'];
418 }
419 if ( isset( $options['override-width'] ) ) {
420 $attribs['width'] = $options['override-width'];
421 }
422
423 // Additional densities for responsive images, if specified.
424 // If any of these urls is the same as src url, it'll be excluded.
425 $responsiveUrls = array_diff( $this->responsiveUrls, [ $this->url ] );
426 if ( !empty( $responsiveUrls ) ) {
427 $attribs['srcset'] = Html::srcSet( $responsiveUrls );
428 }
429
430 Hooks::run( 'ThumbnailBeforeProduceHTML', [ $this, &$attribs, &$linkAttribs ] );
431
432 return $this->linkWrap( $linkAttribs, Xml::element( 'img', $attribs ) );
433 }
434}
435
443 private $msg;
444
445 function __construct( $msg, $width, $height /*, ... */ ) {
446 $args = array_slice( func_get_args(), 3 );
447 $this->msg = wfMessage( $msg )->params( $args );
448 $this->width = intval( $width );
449 $this->height = intval( $height );
450 $this->url = false;
451 $this->path = false;
452 }
453
454 function toHtml( $options = [] ) {
455 return "<div class=\"MediaTransformError\" style=\"" .
456 "width: {$this->width}px; height: {$this->height}px; display:inline-block;\">" .
457 $this->getHtmlMsg() .
458 "</div>";
459 }
460
461 function toText() {
462 return $this->msg->text();
463 }
464
465 function getHtmlMsg() {
466 return $this->msg->escaped();
467 }
468
469 function getMsg() {
470 return $this->msg;
471 }
472
473 function isError() {
474 return true;
475 }
476
477 function getHttpStatusCode() {
478 return 500;
479 }
480}
481
488 function __construct( $params ) {
489 parent::__construct( 'thumbnail_error',
490 max( $params['width'] ?? 0, 120 ),
491 max( $params['height'] ?? 0, 120 ),
492 wfMessage( 'thumbnail_invalid_params' )
493 );
494 }
495
496 function getHttpStatusCode() {
497 return 400;
498 }
499}
500
508 function __construct( $params, $maxImageArea ) {
509 $msg = wfMessage( 'thumbnail_toobigimagearea' );
510 $msg->params(
511 $msg->getLanguage()->formatComputingNumbers( $maxImageArea, 1000, "size-$1pixel" )
512 );
513
514 parent::__construct( 'thumbnail_error',
515 max( $params['width'] ?? 0, 120 ),
516 max( $params['height'] ?? 0, 120 ),
517 $msg
518 );
519 }
520
521 function getHttpStatusCode() {
522 return 400;
523 }
524}
target page
wfArrayToCgi( $array1, $array2=null, $prefix='')
This function takes one or two arrays as input, and returns a CGI-style string, e....
if( $line===false) $args
Definition cdb.php:64
static isStoragePath( $path)
Check if a given path is a "mwstore://" path.
static extensionFromPath( $path, $case='lowercase')
Get the final extension from a storage or FS path.
Implements some public methods and some protected utility functions which are required by multiple ch...
Definition File.php:51
MediaWiki exception.
Basic media transform error class.
__construct( $msg, $width, $height)
toHtml( $options=[])
Fetch HTML for this transform output.
isError()
This will be overridden to return true in error classes.
Base class for the output of MediaHandler::doTransform() and File::transform().
streamFileWithStatus( $headers=[])
Stream the file if there were no errors.
string $url
URL path to the thumb.
hasFile()
Check if an output thumbnail file actually exists.
getLocalCopyPath()
Get the path of a file system copy of the thumbnail.
bool string $lang
Language code, false if not set.
fileIsSource()
Check if the output thumbnail is the same as the source.
linkWrap( $linkAttribs, $contents)
Wrap some XHTML text in an anchor tag with the given attributes.
getExtension()
Get the final extension of the thumbnail.
streamFile( $headers=[])
Stream the file if there were no errors.
array $responsiveUrls
Associative array mapping optional supplementary image files from pixel density (eg 1....
bool string $path
Filesystem path to the thumb.
isError()
This will be overridden to return true in error classes.
getDescLinkAttribs( $title=null, $params=[])
bool string $storagePath
Permanent storage path.
toHtml( $options=[])
Fetch HTML for this transform output.
The Message class provides methods which fulfil two basic services:
Definition Message.php:160
params()
Adds parameters to the parameter list of this message.
Definition Message.php:499
getLanguage()
Returns the Language of the Message.
Definition Message.php:379
static stream( $fname, $headers=[], $sendErrors=true, $optHeaders=[], $flags=0)
Stream a file to the browser, adding all the headings and fun stuff.
Media transform output for images.
__construct( $file, $url, $path=false, $parameters=[])
Get a thumbnail object from a file and parameters.
toHtml( $options=[])
Return HTML.
Shortcut class for parameter validation errors.
Shortcut class for parameter file size errors.
__construct( $params, $maxImageArea)
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped & $options
Definition hooks.txt:2050
namespace and then decline to actually register it file or subcat img or subcat $title
Definition hooks.txt:994
either a unescaped string or a HtmlArmor object after in associative array form externallinks including delete and has completed for all link tables whether this was an auto creation use $formDescriptor instead default is conds Array Extra conditions for the No matching items in log is displayed if loglist is empty msgKey Array If you want a nice box with a set this to the key of the message First element is the message additional optional elements are parameters for the key that are processed with wfMessage() -> params() ->parseAsBlock() - offset Set to overwrite offset parameter in $wgRequest set to '' to unset offset - wrap String Wrap the message in html(usually something like "&lt;div ...>$1&lt;/div>"). - flags Integer display flags(NO_ACTION_LINK, NO_EXTRA_USER_LINKS) 'LogException':Called before an exception(or PHP error) is logged. This is meant for integration with external error aggregation services
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Definition hooks.txt:2063
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Definition hooks.txt:106
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Definition hooks.txt:1656
processing should stop and the error should be shown to the user * false
Definition hooks.txt:187
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 $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
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$params