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Showing content from https://doc.wikimedia.org/mediawiki-core/master/php/SvgHandler_8php_source.html below:

MediaWiki: includes/media/SvgHandler.php Source File

use Wikimedia\AtEase\AtEase;

use Wikimedia\ScopedCallback;

SVG_DEFAULT_RENDER_LANG =

;

$metaConversion = [

=>

,

=>

,

=>

,

=>

,

$config = MediaWikiServices::getInstance()->getMainConfig();

$svgConverters = $config->get( MainConfigNames::SVGConverters );

$svgConverter = $config->get( MainConfigNames::SVGConverter );

( $config->get( MainConfigNames::SVGNativeRendering ) ===

) {

( !isset( $svgConverters[$svgConverter] ) ) {

(

);

$svgNativeRendering = MediaWikiServices::getInstance()

->getMainConfig()->get( MainConfigNames::SVGNativeRendering );

( $svgNativeRendering ===

) {

( $svgNativeRendering !==

) {

$maxSVGFilesize = MediaWikiServices::getInstance()

->getMainConfig()->get( MainConfigNames::SVGNativeRenderingSizeLimit );

&& $file->getSize() <= $maxSVGFilesize;

( isset( $metadata[

] ) ) {

$metadata[

];

( isset( $metadata[

] ) ) {

( $metadata[

] as $lang => $langType ) {

( $langType === SVGReader::LANG_FULL_MATCH ) {

$langList[] = strtolower( $lang );

array_unique( $langList );

( $userPreferredLanguage ===

) {

( $svgLanguages as $svgLang ) {

( strcasecmp( $svgLang, $userPreferredLanguage ) === 0 ) {

$trimmedSvgLang = $svgLang;

( str_contains( $trimmedSvgLang,

) ) {

$trimmedSvgLang = substr( $trimmedSvgLang, 0, strrpos( $trimmedSvgLang,

) );

( strcasecmp( $trimmedSvgLang, $userPreferredLanguage ) === 0 ) {

$params[

] ?? $params[

] ?? self::SVG_DEFAULT_RENDER_LANG;

self::SVG_DEFAULT_RENDER_LANG;

( parent::normaliseParams( $image, $params ) ) {

$svgMaxSize = MediaWikiServices::getInstance()->getMainConfig()->get( MainConfigNames::SVGMaxSize );

( $params[

] <= $params[

] ) {

( $params[

] > $svgMaxSize ) {

$srcWidth = $image->getWidth( $params[

] );

$srcHeight = $image->getHeight( $params[

] );

$params[

] = $svgMaxSize;

$params[

] = File::scaleHeight( $srcWidth, $srcHeight, $svgMaxSize );

} elseif ( $params[

] > $svgMaxSize ) {

$srcWidth = $image->getWidth( $params[

] );

$srcHeight = $image->getHeight( $params[

] );

$params[

] = File::scaleHeight( $srcHeight, $srcWidth, $svgMaxSize );

$params[

] = $svgMaxSize;

( isset( $params[

] ) && !$image->getMatchedLanguage( $params[

] ) ) {

unset( $params[

] );

( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {

$clientWidth = $params[

];

$clientHeight = $params[

];

$physicalWidth = $params[

];

$physicalHeight = $params[

];

( $image, $image->getURL(),

, $params );

( $flags & self::TRANSFORM_LATER ) {

( isset( $metadata[

] ) ) {

$err =

(

, $metadata[

][

] );

( !

( dirname( $dstPath ),

, __METHOD__ ) ) {

(

) );

$srcPath = $image->getLocalRefPath();

( $srcPath ===

) {

sprintf(

,

$params[

], $params[

],

$lnPath =

. basename( $srcPath );

$ok = mkdir( $tmpDir, 0771 );

sprintf(

,

$params[

], $params[

],

(

)->text()

$ok = @symlink( $srcPath, $lnPath );

$cleaner =

ScopedCallback(

() use ( $tmpDir, $lnPath ) {

AtEase::suppressWarnings();

AtEase::restoreWarnings();

$ok = copy( $srcPath, $lnPath );

sprintf(

,

$params[

], $params[

],

$status = $this->

( $lnPath, $dstPath, $physicalWidth, $physicalHeight, $lang );

( $status ===

) {

( $srcPath, $dstPath, $width, $height, $lang =

) {

$mainConfig = MediaWikiServices::getInstance()->getMainConfig();

$svgConverters = $mainConfig->get( MainConfigNames::SVGConverters );

$svgConverter = $mainConfig->get( MainConfigNames::SVGConverter );

$svgConverterPath = $mainConfig->get( MainConfigNames::SVGConverterPath );

( isset( $svgConverters[$svgConverter] ) ) {

( is_array( $svgConverters[$svgConverter] ) ) {

$func = $svgConverters[$svgConverter][0];

( !is_callable( $func ) ) {

UnexpectedValueException(

);

$err = $func( $srcPath,

...array_slice( $svgConverters[$svgConverter], 1 )

$retval = (bool)$err;

$cmd = strtr( $svgConverters[$svgConverter], [

=> $svgConverterPath ? Shell::escape(

) :

,

=> (int)$width,

=> (

)$height,

=> Shell::escape( $srcPath ),

=> Shell::escape( $dstPath ),

( $lang !==

) {

$env[

] = $lang;

( __METHOD__ .

);

( $retval != 0 || $removed ) {

$im =

Imagick( $srcPath );

$im->setBackgroundColor(

);

$im->readImage( $srcPath );

$im->setImageFormat(

);

$im->setImageDepth( 8 );

( !$im->thumbnailImage( (

)$width, (

)$height,

) ) {

;

( !$im->writeImage( $dstPath ) ) {

;

[

,

];

( isset( $metadata[

] ) ) {

(

, $metadata[

][

] )->escaped();

$msg =

(

);

->numParams( $file->getWidth(), $file->getHeight() )

->sizeParams( $file->getSize() )

$metadata = [

=> self::SVG_METADATA_VERSION ];

$svgReader =

( $filename );

$metadata += $svgReader->getMetadata();

$metadata[

] = [

=> $e->getMessage(),

=> $e->getCode()

( __METHOD__ .

. $e->getMessage() );

=> $metadata[

] ?? 0,

=> $metadata[

] ?? 0,

=> $metadata

( isset( $unser[

] ) && $unser[

] === self::SVG_METADATA_VERSION ) {

;

self::METADATA_BAD;

( !isset( $meta[

] ) ) {

self::METADATA_COMPATIBLE;

self::METADATA_GOOD;

[

,

];

( !$metadata || isset( $metadata[

] ) ) {

( $metadata as $name => $value ) {

$tag = strtolower( $name );

( isset( self::$metaConversion[$tag] ) ) {

$tag = strtolower( self::$metaConversion[$tag] );

self::addMeta( $result,

in_array( $tag, $visibleFields ) ?

:

,

$showMeta ? $result :

;

( in_array( $name, [

,

] ) ) {

( $value > 0 );

( $name ===

) {

|| !LanguageCode::isWellFormedLanguageTag( $value )

( $code !== self::SVG_DEFAULT_RENDER_LANG ) {

$lang =

. strtolower( $code ) .

;

( isset( $params[

] ) && $params[

] ) {

;

( !isset( $params[

] ) ) {

;

( preg_match(

, $str, $m ) ) {

( LanguageCode::isWellFormedLanguageTag( $m[1] ) ) {

[

=> array_pop( $m ),

=> $m[1] ];

[

=> array_pop( $m ),

=> self::SVG_DEFAULT_RENDER_LANG ];

( preg_match(

, $str, $m ) ) {

[

=> $m[1],

=> self::SVG_DEFAULT_RENDER_LANG ];

[

=>

,

=>

];

$scriptParams = [

=> $params[

] ];

( isset( $params[

] ) ) {

$scriptParams[

] = $params[

];

$scriptParams;

( !$metadata || isset( $metadata[

] ) ) {

( $metadata as $name => $value ) {

$tag = strtolower( $name );

( $tag ===

|| $tag ===

) {

( isset( self::$metaConversion[$tag] ) ) {

$tag = self::$metaConversion[$tag];

$stdMetadata[$tag] = $value;

wfDebug( $text, $dest='all', array $context=[])

Sends a line to the debug log if enabled or, optionally, to a comment in output.

wfTempDir()

Tries to get the system directory for temporary files.

wfRandomString( $length=32)

Get a random string containing a number of pseudo-random hex characters.

wfHostname()

Get host name of the current machine, for use in error reporting.

wfShellExecWithStderr( $cmd, &$retval=null, $environ=[], $limits=[])

Execute a shell command, returning both stdout and stderr.

wfDebugLog( $logGroup, $text, $dest='all', array $context=[])

Send a line to a supplementary debug log file, if configured, or main debug log if not.

wfMkdirParents( $dir, $mode=null, $caller=null)

Make directory, and make all parent directories if they don't exist.

wfMessage( $key,... $params)

This is the function for getting translated interface messages.

Media handler abstract base class for images.

A class containing constants representing the names of configuration variables.

validateParam( $name, $value)

isVectorized( $file)

The material is vectorized and thus scaling is lossless.to overridebool

normaliseParams( $image, &$params)

formatMetadata( $file, $context=false)

parseParamString( $str)

Parse a param string made with makeParamString back into an array.array|false Array of parameters or ...

mustRender( $file)

True if handled types cannot be displayed directly in a browser but can be rendered....

getScriptParams( $params)

makeParamString( $params)

getCommonMetaArray(File $file)

Get an array of standard (FormatMetadata type) metadata values.The returned data is largely the same ...

doTransform( $image, $dstPath, $dstUrl, $params, $flags=0)

validateMetadata( $unser)

getLanguageFromParams(array $params)

Determines render language from image parameters This is a lowercase IETF language.

getAvailableLanguages(File $file)

Which languages (systemLanguage attribute) is supported.

getLongDesc( $file)

Subtitle for the image.

normaliseParamsInternal( $image, $params)

Code taken out of normaliseParams() for testability.

getMetadataType( $image)

Get a string describing the type of metadata, for display purposes.to overrideThis method is currentl...

getThumbType( $ext, $mime, $params=null)

Get the thumbnail extension and MIME type for a given source MIME type.to overridearray Thumbnail ext...

getDefaultRenderLanguage(File $file)

What language to render file in if none selected.

rasterize( $srcPath, $dstPath, $width, $height, $lang=false)

Transform an SVG file to PNG This function can be called outside of thumbnail contexts.

getSizeAndMetadata( $state, $filename)

isEnabled()

False if the handler is disabled for all files.to overridebool

canAnimateThumbnail( $file)

We do not support making animated svg thumbnails.

visibleMetadataFields()

Get a list of metadata items which should be displayed when the metadata table is collapsed....

static rasterizeImagickExt( $srcPath, $dstPath, $width, $height)

isFileMetadataValid( $image)

Check if the metadata is valid for this handler.If it returns MediaHandler::METADATA_BAD (or false),...

getMatchedLanguage( $userPreferredLanguage, array $svgLanguages)

SVG's systemLanguage matching rules state: 'The systemLanguage attribute ... [e]valuates to "true" if...

const SVG_METADATA_VERSION

allowRenderingByUserAgent( $file)

getParamMap()

Get an associative array mapping magic word IDs to parameter names.Will be used by the parser to iden...

Media transform output for images.

Shortcut class for parameter validation errors.

Interface for objects which can provide a MediaWiki context on request.

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