-<?php\r
-\r
-/**\r
- * Returns the image directory of an image\r
- * The result is an absolute path.\r
- *\r
- * This function is called from thumb.php before Setup.php is included\r
- *\r
- * @param $fname String: file name of the image file.\r
- * @public\r
- */\r
-function wfImageDir( $fname ) {\r
- global $wgUploadDirectory, $wgHashedUploadDirectory;\r
-\r
- if (!$wgHashedUploadDirectory) { return $wgUploadDirectory; }\r
-\r
- $hash = md5( $fname );\r
- $dest = $wgUploadDirectory . '/' . $hash{0} . '/' . substr( $hash, 0, 2 );\r
-\r
- return $dest;\r
-}\r
-\r
-/**\r
- * Returns the image directory of an image's thubnail\r
- * The result is an absolute path.\r
- *\r
- * This function is called from thumb.php before Setup.php is included\r
- *\r
- * @param $fname String: file name of the original image file\r
- * @param $shared Boolean: (optional) use the shared upload directory (default: 'false').\r
- * @public\r
- */\r
-function wfImageThumbDir( $fname, $shared = false ) {\r
- $base = wfImageArchiveDir( $fname, 'thumb', $shared );\r
- if ( Image::isHashed( $shared ) ) {\r
- $dir = "$base/$fname";\r
- } else {\r
- $dir = $base;\r
- }\r
-\r
- return $dir;\r
-}\r
-\r
-/**\r
- * Old thumbnail directory, kept for conversion\r
- */\r
-function wfDeprecatedThumbDir( $thumbName , $subdir='thumb', $shared=false) {\r
- return wfImageArchiveDir( $thumbName, $subdir, $shared );\r
-}\r
-\r
-/**\r
- * Returns the image directory of an image's old version\r
- * The result is an absolute path.\r
- *\r
- * This function is called from thumb.php before Setup.php is included\r
- *\r
- * @param $fname String: file name of the thumbnail file, including file size prefix.\r
- * @param $subdir String: subdirectory of the image upload directory that should be used for storing the old version. Default is 'archive'.\r
- * @param $shared Boolean use the shared upload directory (only relevant for other functions which call this one). Default is 'false'.\r
- * @public\r
- */\r
-function wfImageArchiveDir( $fname , $subdir='archive', $shared=false ) {\r
- global $wgUploadDirectory, $wgHashedUploadDirectory;\r
- global $wgSharedUploadDirectory, $wgHashedSharedUploadDirectory;\r
- $dir = $shared ? $wgSharedUploadDirectory : $wgUploadDirectory;\r
- $hashdir = $shared ? $wgHashedSharedUploadDirectory : $wgHashedUploadDirectory;\r
- if (!$hashdir) { return $dir.'/'.$subdir; }\r
- $hash = md5( $fname );\r
-\r
- return $dir.'/'.$subdir.'/'.$hash[0].'/'.substr( $hash, 0, 2 );\r
-}\r
-\r
-\r
-/*\r
- * Return the hash path component of an image path (URL or filesystem),\r
- * e.g. "/3/3c/", or just "/" if hashing is not used.\r
- *\r
- * @param $dbkey The filesystem / database name of the file\r
- * @param $fromSharedDirectory Use the shared file repository? It may\r
- * use different hash settings from the local one.\r
- */\r
-function wfGetHashPath ( $dbkey, $fromSharedDirectory = false ) {\r
- if( Image::isHashed( $fromSharedDirectory ) ) {\r
- $hash = md5($dbkey);\r
- return '/' . $hash{0} . '/' . substr( $hash, 0, 2 ) . '/';\r
- } else {\r
- return '/';\r
- }\r
-}\r
-\r
-/**\r
- * Returns the image URL of an image's old version\r
- *\r
- * @param $name String: file name of the image file\r
- * @param $subdir String: (optional) subdirectory of the image upload directory that is used by the old version. Default is 'archive'\r
- * @public\r
- */\r
-function wfImageArchiveUrl( $name, $subdir='archive' ) {\r
- global $wgUploadPath, $wgHashedUploadDirectory;\r
-\r
- if ($wgHashedUploadDirectory) {\r
- $hash = md5( substr( $name, 15) );\r
- $url = $wgUploadPath.'/'.$subdir.'/' . $hash{0} . '/' .\r
- substr( $hash, 0, 2 ) . '/'.$name;\r
- } else {\r
- $url = $wgUploadPath.'/'.$subdir.'/'.$name;\r
- }\r
- return wfUrlencode($url);\r
-}\r
-\r
-/**\r
- * Return a rounded pixel equivalent for a labeled CSS/SVG length.\r
- * http://www.w3.org/TR/SVG11/coords.html#UnitIdentifiers\r
- *\r
- * @param $length String: CSS/SVG length.\r
- * @return Integer: length in pixels\r
- */\r
-function wfScaleSVGUnit( $length ) {\r
- static $unitLength = array(\r
- 'px' => 1.0,\r
- 'pt' => 1.25,\r
- 'pc' => 15.0,\r
- 'mm' => 3.543307,\r
- 'cm' => 35.43307,\r
- 'in' => 90.0,\r
- '' => 1.0, // "User units" pixels by default\r
- '%' => 2.0, // Fake it!\r
- );\r
- if( preg_match( '/^(\d+(?:\.\d+)?)(em|ex|px|pt|pc|cm|mm|in|%|)$/', $length, $matches ) ) {\r
- $length = floatval( $matches[1] );\r
- $unit = $matches[2];\r
- return round( $length * $unitLength[$unit] );\r
- } else {\r
- // Assume pixels\r
- return round( floatval( $length ) );\r
- }\r
-}\r
-\r
-/**\r
- * Compatible with PHP getimagesize()\r
- * @todo support gzipped SVGZ\r
- * @todo check XML more carefully\r
- * @todo sensible defaults\r
- *\r
- * @param $filename String: full name of the file (passed to php fopen()).\r
- * @return array\r
- */\r
-function wfGetSVGsize( $filename ) {\r
- $width = 256;\r
- $height = 256;\r
-\r
- // Read a chunk of the file\r
- $f = fopen( $filename, "rt" );\r
- if( !$f ) return false;\r
- $chunk = fread( $f, 4096 );\r
- fclose( $f );\r
-\r
- // Uber-crappy hack! Run through a real XML parser.\r
- if( !preg_match( '/<svg\s*([^>]*)\s*>/s', $chunk, $matches ) ) {\r
- return false;\r
- }\r
- $tag = $matches[1];\r
- if( preg_match( '/\bwidth\s*=\s*("[^"]+"|\'[^\']+\')/s', $tag, $matches ) ) {\r
- $width = wfScaleSVGUnit( trim( substr( $matches[1], 1, -1 ) ) );\r
- }\r
- if( preg_match( '/\bheight\s*=\s*("[^"]+"|\'[^\']+\')/s', $tag, $matches ) ) {\r
- $height = wfScaleSVGUnit( trim( substr( $matches[1], 1, -1 ) ) );\r
- }\r
-\r
- return array( $width, $height, 'SVG',\r
- "width=\"$width\" height=\"$height\"" );\r
-}\r
-\r
-/**\r
- * Determine if an image exists on the 'bad image list'.\r
- *\r
- * @param $name String: the image name to check\r
- * @return bool\r
- */\r
-function wfIsBadImage( $name ) {\r
- static $titleList = false;\r
- wfProfileIn( __METHOD__ );\r
- $bad = false;\r
- if( wfRunHooks( 'BadImage', array( $name, &$bad ) ) ) {\r
- if( !$titleList ) {\r
- # Build the list now\r
- $titleList = array();\r
- $lines = explode( "\n", wfMsgForContent( 'bad_image_list' ) );\r
- foreach( $lines as $line ) {\r
- if( preg_match( '/^\*\s*\[\[:?(.*?)\]\]/i', $line, $matches ) ) {\r
- $title = Title::newFromText( $matches[1] );\r
- if( is_object( $title ) && $title->getNamespace() == NS_IMAGE )\r
- $titleList[ $title->getDBkey() ] = true;\r
- }\r
- }\r
- }\r
- wfProfileOut( __METHOD__ );\r
- return array_key_exists( $name, $titleList );\r
- } else {\r
- wfProfileOut( __METHOD__ );\r
- return $bad;\r
- }\r
-}\r
-\r
-/**\r
- * Calculate the largest thumbnail width for a given original file size\r
- * such that the thumbnail's height is at most $maxHeight.\r
- * @param $boxWidth Integer Width of the thumbnail box.\r
- * @param $boxHeight Integer Height of the thumbnail box.\r
- * @param $maxHeight Integer Maximum height expected for the thumbnail.\r
- * @return Integer.\r
- */\r
-function wfFitBoxWidth( $boxWidth, $boxHeight, $maxHeight ) {\r
- $idealWidth = $boxWidth * $maxHeight / $boxHeight;\r
- $roundedUp = ceil( $idealWidth );\r
- if( round( $roundedUp * $boxHeight / $boxWidth ) > $maxHeight )\r
- return floor( $idealWidth );\r
- else\r
- return $roundedUp;\r
-}\r
-\r
-\r
-?>\r
+<?php
+/**
+ * Return a rounded pixel equivalent for a labeled CSS/SVG length.
+ * http://www.w3.org/TR/SVG11/coords.html#UnitIdentifiers
+ *
+ * @param $length String: CSS/SVG length.
+ * @param $viewportSize: Float optional scale for percentage units...
+ * @return float: length in pixels
+ */
+function wfScaleSVGUnit( $length, $viewportSize=512 ) {
+ static $unitLength = array(
+ 'px' => 1.0,
+ 'pt' => 1.25,
+ 'pc' => 15.0,
+ 'mm' => 3.543307,
+ 'cm' => 35.43307,
+ 'in' => 90.0,
+ 'em' => 16.0, // fake it?
+ 'ex' => 12.0, // fake it?
+ '' => 1.0, // "User units" pixels by default
+ );
+ $matches = array();
+ if( preg_match( '/^\s*(\d+(?:\.\d+)?)(em|ex|px|pt|pc|cm|mm|in|%|)\s*$/', $length, $matches ) ) {
+ $length = floatval( $matches[1] );
+ $unit = $matches[2];
+ if( $unit == '%' ) {
+ return $length * 0.01 * $viewportSize;
+ } else {
+ return $length * $unitLength[$unit];
+ }
+ } else {
+ // Assume pixels
+ return floatval( $length );
+ }
+}
+
+class XmlSizeFilter {
+ const DEFAULT_WIDTH = 512;
+ const DEFAULT_HEIGHT = 512;
+ var $first = true;
+ var $width = self::DEFAULT_WIDTH;
+ var $height = self::DEFAULT_HEIGHT;
+ function filter( $name, $attribs ) {
+ if( $this->first ) {
+ $defaultWidth = self::DEFAULT_WIDTH;
+ $defaultHeight = self::DEFAULT_HEIGHT;
+ $aspect = 1.0;
+ $width = null;
+ $height = null;
+
+ if( isset( $attribs['viewBox'] ) ) {
+ // min-x min-y width height
+ $viewBox = preg_split( '/\s+/', trim( $attribs['viewBox'] ) );
+ if( count( $viewBox ) == 4 ) {
+ $viewWidth = wfScaleSVGUnit( $viewBox[2] );
+ $viewHeight = wfScaleSVGUnit( $viewBox[3] );
+ if( $viewWidth > 0 && $viewHeight > 0 ) {
+ $aspect = $viewWidth / $viewHeight;
+ $defaultHeight = $defaultWidth / $aspect;
+ }
+ }
+ }
+ if( isset( $attribs['width'] ) ) {
+ $width = wfScaleSVGUnit( $attribs['width'], $defaultWidth );
+ }
+ if( isset( $attribs['height'] ) ) {
+ $height = wfScaleSVGUnit( $attribs['height'], $defaultHeight );
+ }
+
+ if( !isset( $width ) && !isset( $height ) ) {
+ $width = $defaultWidth;
+ $height = $width / $aspect;
+ } elseif( isset( $width ) && !isset( $height ) ) {
+ $height = $width / $aspect;
+ } elseif( isset( $height ) && !isset( $width ) ) {
+ $width = $height * $aspect;
+ }
+
+ if( $width > 0 && $height > 0 ) {
+ $this->width = intval( round( $width ) );
+ $this->height = intval( round( $height ) );
+ }
+
+ $this->first = false;
+ }
+ }
+}
+
+/**
+ * Compatible with PHP getimagesize()
+ * @todo support gzipped SVGZ
+ * @todo check XML more carefully
+ * @todo sensible defaults
+ *
+ * @param $filename String: full name of the file (passed to php fopen()).
+ * @return array
+ */
+function wfGetSVGsize( $filename ) {
+ $filter = new XmlSizeFilter();
+ $xml = new XmlTypeCheck( $filename, array( $filter, 'filter' ) );
+ if( $xml->wellFormed ) {
+ return array( $filter->width, $filter->height, 'SVG',
+ "width=\"$filter->width\" height=\"$filter->height\"" );
+ }
+
+ return false;
+}
+
+/**
+ * Determine if an image exists on the 'bad image list'.
+ *
+ * The format of MediaWiki:Bad_image_list is as follows:
+ * * Only list items (lines starting with "*") are considered
+ * * The first link on a line must be a link to a bad image
+ * * Any subsequent links on the same line are considered to be exceptions,
+ * i.e. articles where the image may occur inline.
+ *
+ * @param $name string the image name to check
+ * @param $contextTitle Title: the page on which the image occurs, if known
+ * @return bool
+ */
+function wfIsBadImage( $name, $contextTitle = false ) {
+ static $badImages = false;
+ wfProfileIn( __METHOD__ );
+
+ # Handle redirects
+ $redirectTitle = RepoGroup::singleton()->checkRedirect( Title::makeTitle( NS_FILE, $name ) );
+ if( $redirectTitle ) {
+ $name = $redirectTitle->getDbKey();
+ }
+
+ # Run the extension hook
+ $bad = false;
+ if( !wfRunHooks( 'BadImage', array( $name, &$bad ) ) ) {
+ wfProfileOut( __METHOD__ );
+ return $bad;
+ }
+
+ if( !$badImages ) {
+ # Build the list now
+ $badImages = array();
+ $lines = explode( "\n", wfMsgForContentNoTrans( 'bad_image_list' ) );
+ foreach( $lines as $line ) {
+ # List items only
+ if ( substr( $line, 0, 1 ) !== '*' ) {
+ continue;
+ }
+
+ # Find all links
+ $m = array();
+ if ( !preg_match_all( '/\[\[:?(.*?)\]\]/', $line, $m ) ) {
+ continue;
+ }
+
+ $exceptions = array();
+ $imageDBkey = false;
+ foreach ( $m[1] as $i => $titleText ) {
+ $title = Title::newFromText( $titleText );
+ if ( !is_null( $title ) ) {
+ if ( $i == 0 ) {
+ $imageDBkey = $title->getDBkey();
+ } else {
+ $exceptions[$title->getPrefixedDBkey()] = true;
+ }
+ }
+ }
+
+ if ( $imageDBkey !== false ) {
+ $badImages[$imageDBkey] = $exceptions;
+ }
+ }
+ }
+
+ $contextKey = $contextTitle ? $contextTitle->getPrefixedDBkey() : false;
+ $bad = isset( $badImages[$name] ) && !isset( $badImages[$name][$contextKey] );
+ wfProfileOut( __METHOD__ );
+ return $bad;
+}
+
+/**
+ * Calculate the largest thumbnail width for a given original file size
+ * such that the thumbnail's height is at most $maxHeight.
+ * @param $boxWidth Integer Width of the thumbnail box.
+ * @param $boxHeight Integer Height of the thumbnail box.
+ * @param $maxHeight Integer Maximum height expected for the thumbnail.
+ * @return Integer.
+ */
+function wfFitBoxWidth( $boxWidth, $boxHeight, $maxHeight ) {
+ $idealWidth = $boxWidth * $maxHeight / $boxHeight;
+ $roundedUp = ceil( $idealWidth );
+ if( round( $roundedUp * $boxHeight / $boxWidth ) > $maxHeight )
+ return floor( $idealWidth );
+ else
+ return $roundedUp;
+}
dépôts / lhc / web / wiklou.git / blobdiff