/**
* Puts transferred HTML-code to temporary files.
* @param string $folder Path to the temporary files folder.
* @param array[Object] $html An array with HTML-code of pages.
* @return array[string] An array of created temporary file names.
*/
function buildHTMLFiles($folder, $html)
{
$result = array();
$i = 1;
foreach ($html as $content) {
$file = "{$folder}/" . buildUniqueFileName('printHtml-' . $i, '.html');
$fh = fopen($file, 'w');
//check if file is writable
if (is_writable($file)) {
fwrite($fh, $content['html']);
fclose($fh);
$result[] = basename($file);
} else {
throw new Exception('Can\'t create or read file.');
}
}
return $result;
}
// if you change OUTPUT_PATH then URL string pointing to that folder should be placed here.
// By default it's set to this script URL w/o 'server.php' ending
//define('OUTPUT_URL', 'http://localhost/somefolder/');
define('OUTPUT_URL', getCurrentPageURL(true));
try {
if (!isset($_POST['html'])) {
throw new Exception('Error in request data.');
}
// get request parameters
$html = json_decode($_POST['html'], true);
$format = stripslashes($_POST['format']);
$orientation = stripslashes($_POST['orientation']);
$range = stripslashes($_POST['range']);
$fileFormat = stripslashes($_POST['fileFormat']);
// generate name of the created single PDF file
$out = $range . buildUniqueFileName('-exportedPanel', '.') . $fileFormat;
// output file full path
$outputFilePath = OUTPUT_PATH . "/{$out}";
// output file URL
$outputFileURL = OUTPUT_URL . $out;
// put transferred pages HTML code to temporary files
$files = buildHTMLFiles(OUTPUT_PATH, $html);
// render HTML files to PNG images
$images = renderHTMLFiles($files, OUTPUT_PATH, OUTPUT_URL, $format, $orientation);
// build single PDF/PNG output file
convertImagesToFile($images, $outputFilePath, $fileFormat);
// cleanup temporary png/html files
removeFiles(array_merge($images, $files), OUTPUT_PATH);
header('Content-Type: application/json; charset=utf-8');
//header("access-control-allow-origin: *");
// return response
