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- <?php
- /**
- * This file is part of the exporting module for Highcharts JS.
- * www.highcharts.com/license
- *
- *
- * Available POST variables:
- *
- * $filename string The desired filename without extension
- * $type string The MIME type for export.
- * $width int The pixel width of the exported raster image. The height is calculated.
- * $svg string The SVG source code to convert.
- */
- // Options
- define ('BATIK_PATH', 'batik-rasterizer.jar');
- ///////////////////////////////////////////////////////////////////////////////
- ini_set('magic_quotes_gpc', 'off');
- $type = $_POST['type'];
- $svg = (string) $_POST['svg'];
- $filename = (string) $_POST['filename'];
- // prepare variables
- if (!$filename or !preg_match('/^[A-Za-z0-9\-_ ]+$/', $filename)) {
- $filename = 'chart';
- }
- if (get_magic_quotes_gpc()) {
- $svg = stripslashes($svg);
- }
- // check for malicious attack in SVG
- if(strpos($svg,"<!ENTITY") !== false || strpos($svg,"<!DOCTYPE") !== false){
- exit("Execution is topped, the posted SVG could contain code for a malicious attack");
- }
- $tempName = md5(rand());
- // allow no other than predefined types
- if ($type == 'image/png') {
- $typeString = '-m image/png';
- $ext = 'png';
-
- } elseif ($type == 'image/jpeg') {
- $typeString = '-m image/jpeg';
- $ext = 'jpg';
- } elseif ($type == 'application/pdf') {
- $typeString = '-m application/pdf';
- $ext = 'pdf';
- } elseif ($type == 'image/svg+xml') {
- $ext = 'svg';
- } else { // prevent fallthrough from global variables
- $ext = 'txt';
- }
- $outfile = "temp/$tempName.$ext";
- if (isset($typeString)) {
-
- // size
- $width = '';
- if ($_POST['width']) {
- $width = (int)$_POST['width'];
- if ($width) $width = "-w $width";
- }
- // generate the temporary file
- if (!file_put_contents("temp/$tempName.svg", $svg)) {
- die("Couldn't create temporary file. Check that the directory permissions for
- the /temp directory are set to 777.");
- }
-
- // do the conversion
- $output = shell_exec("java -jar ". BATIK_PATH ." $typeString -d $outfile $width temp/$tempName.svg");
-
- // catch error
- if (!is_file($outfile) || filesize($outfile) < 10) {
- echo "<pre>$output</pre>";
- echo "Error while converting SVG. ";
-
- if (strpos($output, 'SVGConverter.error.while.rasterizing.file') !== false) {
- echo "
- <h4>Debug steps</h4>
- <ol>
- <li>Copy the SVG:<br/><textarea rows=5>" . htmlentities(str_replace('>', ">\n", $svg)) . "</textarea></li>
- <li>Go to <a href='http://validator.w3.org/#validate_by_input' target='_blank'>validator.w3.org/#validate_by_input</a></li>
- <li>Paste the SVG</li>
- <li>Click More Options and select SVG 1.1 for Use Doctype</li>
- <li>Click the Check button</li>
- </ol>";
- }
- }
-
- // stream it
- else {
- header("Content-Disposition: attachment; filename=\"$filename.$ext\"");
- header("Content-Type: $type");
- echo file_get_contents($outfile);
- }
-
- // delete it
- unlink("temp/$tempName.svg");
- unlink($outfile);
- // SVG can be streamed directly back
- } else if ($ext == 'svg') {
- header("Content-Disposition: attachment; filename=\"$filename.$ext\"");
- header("Content-Type: $type");
- echo $svg;
-
- } else {
- echo "Invalid type";
- }
- ?>
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