From 888eab1a076a287bddd84fdf9dd9c57154c91e3f Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Thu, 27 Nov 2014 06:08:05 +0100 Subject: Update to MediaWiki 1.22.14 --- extensions/PdfHandler/PdfHandler.image.php | 309 ----------------------------- 1 file changed, 309 deletions(-) delete mode 100644 extensions/PdfHandler/PdfHandler.image.php (limited to 'extensions/PdfHandler/PdfHandler.image.php') diff --git a/extensions/PdfHandler/PdfHandler.image.php b/extensions/PdfHandler/PdfHandler.image.php deleted file mode 100644 index 49da7f4e..00000000 --- a/extensions/PdfHandler/PdfHandler.image.php +++ /dev/null @@ -1,309 +0,0 @@ - - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * http://www.gnu.org/copyleft/gpl.html - */ - -/** - * inspired by djvuimage from Brion Vibber - * modified and written by xarax - */ - -class PdfImage { - - /** - * @param $filename - */ - function __construct( $filename ) { - $this->mFilename = $filename; - } - - /** - * @return bool - */ - public function isValid() { - return true; - } - - /** - * @return array|bool - */ - public function getImageSize() { - $data = $this->retrieveMetadata(); - $size = self::getPageSize( $data, 1 ); - - if( $size ) { - $width = $size['width']; - $height = $size['height']; - return array( $width, $height, 'Pdf', - "width=\"$width\" height=\"$height\"" ); - } - return false; - } - - /** - * @param $data array - * @param $page - * @return array|bool - */ - public static function getPageSize( $data, $page ) { - global $wgPdfHandlerDpi; - - if( isset( $data['pages'][$page]['Page size'] ) ) { - $o = $data['pages'][$page]['Page size']; - } elseif( isset( $data['Page size'] ) ) { - $o = $data['Page size']; - } else { - $o = false; - } - - if ( $o ) { - if( isset( $data['pages'][$page]['Page rot'] ) ) { - $r = $data['pages'][$page]['Page rot']; - } elseif( isset( $data['Page rot'] ) ) { - $r = $data['Page rot']; - } else { - $r = 0; - } - $size = explode( 'x', $o, 2 ); - - if ( $size ) { - $width = intval( trim( $size[0] ) / 72 * $wgPdfHandlerDpi ); - $height = explode( ' ', trim( $size[1] ), 2 ); - $height = intval( trim( $height[0] ) / 72 * $wgPdfHandlerDpi ); - if ( ( $r/90 ) & 1 ) { - // Swap width and height for landscape pages - $t = $width; - $width = $height; - $height = $t; - } - - return array( - 'width' => $width, - 'height' => $height - ); - } - } - - return false; - } - - /** - * @return array|bool|null - */ - public function retrieveMetaData() { - global $wgPdfInfo, $wgPdftoText; - - if ( $wgPdfInfo ) { - wfProfileIn( 'pdfinfo' ); - $cmd = wfEscapeShellArg( $wgPdfInfo ) . - " -enc UTF-8 " . # Report metadata as UTF-8 text... - " -l 9999999 " . # Report page sizes for all pages - " -meta " . # Report XMP metadata - wfEscapeShellArg( $this->mFilename ); - $retval = ''; - $dump = wfShellExec( $cmd, $retval ); - $data = $this->convertDumpToArray( $dump ); - wfProfileOut( 'pdfinfo' ); - } else { - $data = null; - } - - # Read text layer - if ( isset( $wgPdftoText ) ) { - wfProfileIn( 'pdftotext' ); - $cmd = wfEscapeShellArg( $wgPdftoText ) . ' '. wfEscapeShellArg( $this->mFilename ) . ' - '; - wfDebug( __METHOD__.": $cmd\n" ); - $retval = ''; - $txt = wfShellExec( $cmd, $retval ); - wfProfileOut( 'pdftotext' ); - if( $retval == 0 ) { - $txt = str_replace( "\r\n", "\n", $txt ); - $pages = explode( "\f", $txt ); - foreach( $pages as $page => $pageText ) { - # Get rid of invalid UTF-8, strip control characters - # Note we need to do this per page, as \f page feed would be stripped. - $pages[$page] = UtfNormal::cleanUp( $pageText ); - } - $data['text'] = $pages; - } - } - return $data; - } - - /** - * @param $dump string - * @return array|bool - */ - protected function convertDumpToArray( $dump ) { - if ( strval( $dump ) == '' ) { - return false; - } - - $lines = explode( "\n", $dump ); - $data = array(); - - // Metadata is always the last item, and spans multiple lines. - $inMetadata = false; - - // Basically this loop will go through each line, splitting key value - // pairs on the colon, until it gets to a "Metadata:\n" at which point - // it will gather all remaining lines into the xmp key. - foreach( $lines as $line ) { - if ( $inMetadata ) { - # Handle XMP differently due to diffence in line break - $data['xmp'] .= "\n$line"; - continue; - } - $bits = explode( ':', $line, 2 ); - if( count( $bits ) > 1 ) { - $key = trim( $bits[0] ); - if ( $key === 'Metadata' ) { - $inMetadata = true; - $data['xmp'] = ''; - continue; - } - $value = trim( $bits[1] ); - $matches = array(); - // "Page xx rot" will be in poppler 0.20's pdfinfo output - // See https://bugs.freedesktop.org/show_bug.cgi?id=41867 - if( preg_match( '/^Page +(\d+) (size|rot)$/', $key, $matches ) ) { - $data['pages'][$matches[1]][$matches[2] == 'size' ? 'Page size' : 'Page rot'] = $value; - } else { - $data[$key] = $value; - } - } - } - $data = $this->postProcessDump( $data ); - return $data; - } - - /** - * Postprocess the metadata (convert xmp into useful form, etc) - * - * This is used to generate the metadata table at the bottom - * of the image description page. - * - * @param $data Array metadata - * @return Array post-processed metadata - */ - protected function postProcessDump( array $data ) { - - $meta = new BitmapMetadataHandler(); - $items = array(); - foreach( $data as $key => $val ) { - switch ( $key ) { - case 'Title': - $items['ObjectName'] = $val; - break; - case 'Subject': - $items['ImageDescription'] = $val; - break; - case 'Keywords': - // Sometimes we have empty keywords. This seems - // to be a product of how pdfinfo deals with keywords - // with spaces in them. Filter such empty keywords - $keyList = array_filter( explode( ' ', $val ) ); - if ( count( $keyList ) > 0 ) { - $items['Keywords'] = $keyList; - } - break; - case 'Author': - $items['Artist'] = $val; - break; - case 'Creator': - // Program used to create file. - // Different from program used to convert to pdf. - $items['Software'] = $val; - break; - case 'Producer': - // Conversion program - $items['pdf-Producer'] = $val; - break; - case 'ModTime': - $timestamp = wfTimestamp( TS_EXIF, $val ); - if ( $timestamp ) { - // 'if' is just paranoia - $items['DateTime'] = $timestamp; - } - break; - case 'CreationTime': - $timestamp = wfTimestamp( TS_EXIF, $val ); - if ( $timestamp ) { - $items['DateTimeDigitized'] = $timestamp; - } - break; - // These last two (version and encryption) I was unsure - // if we should include in the table, since they aren't - // all that useful to editors. I leaned on the side - // of including. However not including if file - // is optimized/linearized since that is really useless - // to an editor. - case 'PDF version': - $items['pdf-Version'] = $val; - break; - case 'Encrypted': - // @todo: The value isn't i18n-ised. The appropriate - // place to do that is in FormatMetadata.php - // should add a hook a there. - // For reference, if encrypted this fields value looks like: - // "yes (print:yes copy:no change:no addNotes:no)" - $items['pdf-Encrypted'] = $val; - break; - // Note 'pages' and 'Pages' are different keys (!) - case 'pages': - // A pdf document can have multiple sized pages in it. - // (However 95% of the time, all pages are the same size) - // get a list of all the unique page sizes in document. - // This doesn't do anything with rotation as of yet, - // mostly because I am unsure of what a good way to - // present that information to the user would be. - $pageSizes = array(); - foreach( $val as $page ) { - if( isset( $page['Page size'] ) ) { - $pageSizes[ $page['Page size'] ] = true; - } - } - - $pageSizeArray = array_keys( $pageSizes ); - if ( count( $pageSizeArray ) > 0 ) { - $items['pdf-PageSize'] = $pageSizeArray; - } - break; - } - - } - $meta->addMetadata( $items, 'native' ); - - if ( isset( $data['xmp'] ) && function_exists( 'xml_parser_create_ns' ) ) { - // func exists verifies that the xml extension required for XMPReader - // is present (Almost always is present) - // @todo: This only handles generic xmp properties. Would be improved - // by handling pdf xmp properties (pdf and pdfx) via XMPInfo hook. - $xmp = new XMPReader(); - $xmp->parse( $data['xmp'] ); - $xmpRes = $xmp->getResults(); - foreach ( $xmpRes as $type => $xmpSection ) { - $meta->addMetadata( $xmpSection, $type ); - } - } - unset( $data['xmp'] ); - $data['mergedMetadata'] = $meta->getMetadataArray(); - return $data; - } -} -- cgit v1.2.2