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517 lines
24 KiB
517 lines
24 KiB
<?php
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/* See license terms in /license.txt */
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/**
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* @package chamilo.library
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*/
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define('_MPDF_PATH', api_get_path(LIBRARY_PATH).'mpdf/');
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require_once _MPDF_PATH.'mpdf.php';
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class PDF {
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var $pdf;
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var $custom_header = '';
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var $custom_footer = '';
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/**
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* Creates the mPDF object
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* @param string format A4 A4-L see http://mpdf1.com/manual/index.php?tid=184&searchstring=format
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* @param string orientation "P" = Portrait "L" = Landscape
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*/
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public function __construct($page_format ='A4', $orientation = 'P') {
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/* More info @ http://mpdf1.com/manual/index.php?tid=184&searchstring=mPDF
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* mPDF ([ string $mode [, mixed $format [, float $default_font_size [, string $default_font [, float $margin_left , float $margin_right , float $margin_top , float $margin_bottom , float $margin_header , float $margin_footer [, string $orientation ]]]]]])
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*/
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if(!in_array($orientation,array('P','L'))) {
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$orientation = 'P';
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}
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$this->pdf = $pdf = new mPDF('UTF-8', $page_format, '', '', 30, 20, 27, 25, 16, 13, $orientation);
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}
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/**
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* Converts an html file to PDF
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* @param mixed could be an html file path or an array with paths example: /var/www/myfile.html or array('/myfile.html','myotherfile.html') or even an indexed array with both 'title' and 'path' indexes for each element like array(0=>array('title'=>'Hello','path'=>'file.html'),1=>array('title'=>'Bye','path'=>'file2.html'));
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* @param string pdf name
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* @param string course code (if you are using html that are located in the document tool you must provide this)
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* @return
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*/
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public function html_to_pdf($html_file_array, $pdf_name = '', $course_code = null, $print_title = false) {
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if (empty($html_file_array)) {
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return false;
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}
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if (is_array($html_file_array)) {
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if (count($html_file_array) == 0)
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return false;
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} else {
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if (!file_exists($html_file_array)) {
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return false;
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}
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//Converting the string into an array
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$html_file_array = array($html_file_array);
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}
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$course_data = array();
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if (!empty($course_code)) {
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$course_data = api_get_course_info($course_code);
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}
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//clean styles and javascript document
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$clean_search = array (
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'@<script[^>]*?>.*?</script>@si',
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'@<style[^>]*?>.*?</style>@si'
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);
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//Formatting the pdf
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self::format_pdf($course_data);
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foreach ($html_file_array as $file) {
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$html_title = '';
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//if the array provided contained subarrays with 'title' entry,
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// then print the title in the PDF
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if (is_array($file) && isset($file['title'])) {
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$html_title = $file['title'];
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$file = $file['path'];
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} else {
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//we suppose we've only been sent a file path
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$html_title = basename($file);
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}
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if (empty($file) && !empty($html_title)) {
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//this is a chapter, print title & skip the rest
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if ($print_title) {
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$this->pdf->WriteHTML('<html><body><h3>'.$html_title.'</h3></body></html>',2);
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}
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continue;
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}
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if (!file_exists($file)) {
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//the file doesn't exist, skip
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continue;
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}
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//it's not a chapter but the file exists, print its title
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if ($print_title) {
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$this->pdf->WriteHTML('<html><body><h3>'.$html_title.'</h3></body></html>',2);
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}
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$file_info = pathinfo($file);
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$extension = $file_info['extension'];
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if (in_array($extension, array('html', 'htm'))) {
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$dirname = str_replace("\\", '/', $file_info['dirname']);
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$filename = $file_info['basename'];
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$filename = str_replace('_',' ',$filename);
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if ($extension == 'html') {
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$filename =basename($filename,'.html');
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} elseif($extension == 'htm'){
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$filename =basename($filename,'.htm');
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}
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$document_html = @file_get_contents($file);
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$document_html = preg_replace($clean_search, '', $document_html);
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//absolute path for frames.css //TODO: necessary?
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$absolute_css_path = api_get_path(WEB_CODE_PATH).'css/'.api_get_setting('stylesheets').'/frames.css';
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$document_html = str_replace('href="./css/frames.css"',$absolute_css_path, $document_html);
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//$document_html=str_replace('<link rel="stylesheet" http://my.chamilo.net/main/css/chamilo/frames.css type="text/css" />','', $document_html);
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if (!empty($course_data['path'])) {
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$document_html= str_replace('../','',$document_html);
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$document_path = api_get_path(WEB_COURSE_PATH).$course_data['path'].'/document/';
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$doc = new DOMDocument();
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$result = @$doc->loadHTML($document_html);
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//Fixing only images @todo do the same thing with other elements
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$elements = $doc->getElementsByTagName('img');
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$replace_img_elements = array();
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if (!empty($elements)) {
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foreach($elements as $item) {
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$old_src = $item->getAttribute('src');
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//$old_src= str_replace('../','',$old_src);
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if (strpos($old_src, 'http') === false) {
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if (strpos($old_src, '/main/default_course_document') === false) {
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$document_html= str_replace($old_src, $document_path.$old_src, $document_html);
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}
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}
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}
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}
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}
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api_set_encoding_html($document_html, 'UTF-8'); // The library mPDF expects UTF-8 encoded input data.
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$title = api_get_title_html($document_html, 'UTF-8', 'UTF-8'); // TODO: Maybe it is better idea the title to be passed through
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// $_GET[] too, as it is done with file name.
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// At the moment the title is retrieved from the html document itself.
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if (empty($title)) {
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$title = $filename; // Here file name is expected to contain ASCII symbols only.
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}
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if (!empty($document_html)) {
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$this->pdf->WriteHTML($document_html,2);
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}
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} elseif (in_array($extension, array('jpg','jpeg','png','gif'))) {
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//Images
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$image = Display::img($file);
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$this->pdf->WriteHTML('<html><body>'.$image.'</body></html>',2);
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}
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}
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if (empty($pdf_name)) {
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$output_file = 'pdf_'.date('Y-m-d-his').'.pdf';
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} else {
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$pdf_name = replace_dangerous_char($pdf_name);
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$output_file = $pdf_name.'.pdf';
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}
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$result = $this->pdf->Output($output_file, 'D'); /// F to save the pdf in a file
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exit;
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}
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/**
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* Converts an html string to PDF
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* @param string valid html
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* @param string pdf name
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* @param string course code (if you are using html that are located in the document tool you must provide this)
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* @return
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*/
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public function content_to_pdf($document_html, $css = '', $pdf_name = '', $course_code = null) {
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if (empty($document_html)) {
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return false;
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}
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//clean styles and javascript document
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$clean_search = array (
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'@<script[^>]*?>.*?</script>@si',
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'@<style[^>]*?>.*?</style>@siU'
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);
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//Formatting the pdf
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self::format_pdf($course_code);
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if (!empty($course_code)) {
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$course_data = api_get_course_info($course_code);
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}
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$document_html = preg_replace($clean_search, '', $document_html);
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//absolute path for frames.css //TODO: necessary?
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$absolute_css_path=api_get_path(WEB_CODE_PATH).'css/'.api_get_setting('stylesheets').'/frames.css';
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$document_html=str_replace('href="./css/frames.css"',$absolute_css_path, $document_html);
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//$document_html=str_replace('<link rel="stylesheet" http://my.chamilo.net/main/css/chamilo/frames.css type="text/css" />','', $document_html);
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$document_html= str_replace('../../','',$document_html);
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$document_html= str_replace('../','',$document_html);
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$document_html= str_replace('courses/'.$course_code.'/document/','',$document_html);
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if (!empty($course_data['path'])) {
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$document_path = api_get_path(WEB_COURSE_PATH).$course_data['path'].'/document/';
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$doc = new DOMDocument();
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$result = @$doc->loadHTML($document_html);
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//Fixing only images @todo do the same thing with other elements
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$elements = $doc->getElementsByTagName('img');
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$replace_img_elements = array();
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if (!empty($elements)) {
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foreach($elements as $item) {
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$old_src = $item->getAttribute('src');
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//$old_src= str_replace('../','',$old_src);
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if (strpos($old_src, 'http') === false) {
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if (strpos($old_src, '/main/default_course_document') === false) {
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if (strpos($old_src, '/main/inc/lib/') === false) {
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$document_html= str_replace($old_src, $document_path.$old_src, $document_html);
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//var_dump($old_src, $document_path.$old_src);
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}
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}
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}
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}
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}
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}
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//replace relative path by absolute path for resources
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//$document_html= str_replace('src="/chamilo/main/default_course_document/', 'temp_template_path', $document_html);// before save src templates not apply
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//$document_html= str_replace('src="/', 'temp_template_path', $document_html);// before save src templates not apply
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//$document_html= str_replace('src="/chamilo/main/default_course_document/', 'temp_template_path', $document_html);// before save src templates not apply
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//$src_http_www= 'src="'.api_get_path(WEB_COURSE_PATH).$course_data['path'].'/document/';
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//$document_html= str_replace('src="',$src_http_www, $document_html);
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//$document_html= str_replace('temp_template_path', 'src="/main/default_course_document/', $document_html);// restore src templates
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api_set_encoding_html($document_html, 'UTF-8'); // The library mPDF expects UTF-8 encoded input data.
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$title = api_get_title_html($document_html, 'UTF-8', 'UTF-8'); // TODO: Maybe it is better idea the title to be passed through
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// $_GET[] too, as it is done with file name.
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// At the moment the title is retrieved from the html document itself.
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/* if (empty($title)) {
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$title = $filename; // Here file name is expected to contain ASCII symbols only.
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}*/
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if (!empty($css)) {
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$this->pdf->WriteHTML($css, 1);
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}
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$this->pdf->WriteHTML($document_html,2);
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if (empty($pdf_name)) {
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$output_file = 'pdf_'.date('Y-m-d-his').'.pdf';
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} else {
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$pdf_name = replace_dangerous_char($pdf_name);
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$output_file = $pdf_name.'.pdf';
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}
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$result = $this->pdf->Output($output_file, 'D'); /// F to save the pdf in a file
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exit;
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}
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/**
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* Gets the watermark from the platform or a course
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* @param string course code (optional)
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* @param mixed web path of the watermark image, false if there is nothing to return
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*/
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public function get_watermark($course_code = null) {
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$web_path = false;
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if (!empty($course_code) && api_get_setting('pdf_export_watermark_by_course') == 'true') {
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$course_info = api_get_course_info($course_code);
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$store_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/'.api_get_current_access_url_id().'_pdf_watermark.png'; // course path
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if (file_exists($store_path)) {
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$web_path = api_get_path(WEB_COURSE_PATH).$course_info['path'].'/'.api_get_current_access_url_id().'_pdf_watermark.png';
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}
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} else {
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$store_path = api_get_path(SYS_CODE_PATH).'default_course_document/'.api_get_current_access_url_id().'_pdf_watermark.png'; // course path
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if (file_exists($store_path))
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$web_path = api_get_path(WEB_CODE_PATH).'default_course_document/'.api_get_current_access_url_id().'_pdf_watermark.png';
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}
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return $web_path;
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}
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/**
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* Deletes the watermark from the Platform or Course
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* @param string course code (optional)
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* @param mixed web path of the watermark image, false if there is nothing to return
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*/
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public function delete_watermark($course_code = null) {
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if (!empty($course_code) && api_get_setting('pdf_export_watermark_by_course') == 'true') {
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$course_info = api_get_course_info($course_code);
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$store_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/'.api_get_current_access_url_id().'_pdf_watermark.png'; // course path
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} else {
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$store_path = api_get_path(SYS_CODE_PATH).'default_course_document/'.api_get_current_access_url_id().'_pdf_watermark.png'; // course path
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}
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if (file_exists($store_path)) {
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@unlink($store_path);
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return true;
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}
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return false;
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}
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/**
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* Uploads the pdf watermark in the main/default_course_document directory or in the course directory
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* @param string filename
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* @param string path of the file
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* @param string course code
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* @return mixed web path of the file if sucess, false otherwise
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*/
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public function upload_watermark($filename, $source_file, $course_code = null) {
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if (!empty($course_code) && api_get_setting('pdf_export_watermark_by_course') == 'true') {
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$course_info = api_get_course_info($course_code);
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$store_path = api_get_path(SYS_COURSE_PATH).$course_info['path']; // course path
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$web_path = api_get_path(WEB_COURSE_PATH).$course_info['path'].'/pdf_watermark.png';
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} else {
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$store_path = api_get_path(SYS_CODE_PATH).'default_course_document'; // course path
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$web_path = api_get_path(WEB_CODE_PATH).'default_course_document/'.api_get_current_access_url_id().'_pdf_watermark.png';
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}
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$course_image = $store_path.'/'.api_get_current_access_url_id().'_pdf_watermark.png';
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$extension = strtolower(substr(strrchr($filename, '.'), 1));
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$result = false;
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$allowed_picture_types = array ('jpg', 'jpeg', 'png', 'gif');
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if (in_array($extension, $allowed_picture_types)) {
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if (file_exists($course_image)) {
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@unlink($course_image);
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}
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if ($extension != 'png') {
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// convert image to png extension
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if ($extension == 'jpg' || $extension == 'jpeg') {
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$image = imagecreatefromjpeg($source_file);
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} else {
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$image = imagecreatefromgif($source_file);
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}
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ob_start();
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imagepng($image);
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$imagevariable = ob_get_contents();
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ob_end_clean();
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// save picture
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if (@file_put_contents($course_image, $imagevariable)) {
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$result = true;
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}
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} else {
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$result = move_uploaded_file($source_file, $course_image);
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}
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}
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if ($result) {
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$result = $web_path;
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}
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return $result;
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}
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/**
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* Returns the default header
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*/
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public function get_header($course_code = null) {
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/*$header = api_get_setting('pdf_export_watermark_text');
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if (!empty($course_code) && api_get_setting('pdf_export_watermark_by_course') == 'true') {
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$header = api_get_course_setting('pdf_export_watermark_text');
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}
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return $header;*/
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}
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public function set_footer() {
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$this->pdf->defaultfooterfontsize = 12; // in pts
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$this->pdf->defaultfooterfontstyle = B; // blank, B, I, or BI
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$this->pdf->defaultfooterline = 1; // 1 to include line below header/above footer
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$platform_name = api_get_setting('Institution');
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$left_content = $platform_name;
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$center_content = '';
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$right_content = '{PAGENO}';
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//@todo remove this and use a simpler way
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$footer = array (
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'odd' => array (
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'L' => array (
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'content' => $left_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
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'C' => array (
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'content' => $center_content,'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
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'R' => array (
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'content' => $right_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
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'line' => 1,
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),
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'even' => array (
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'L' => array (
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'content' => $left_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
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'C' => array (
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'content' => $center_content,'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
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'R' => array (
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'content' => $right_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
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'line' => 1,
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),
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);
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$this->pdf->SetFooter($footer); // defines footer for Odd and Even Pages - placed at Outer margin http://mpdf1.com/manual/index.php?tid=151&searchstring=setfooter
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}
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public function set_header($course_data) {
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// $pdf->SetBasePath($basehref);
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$this->pdf->defaultheaderfontsize = 10; // in pts
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$this->pdf->defaultheaderfontstyle = BI; // blank, B, I, or BI
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$this->pdf->defaultheaderline = 1; // 1 to include line below header/above footer
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if (!empty($course_data['code'])) {
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$teacher_list = CourseManager::get_teacher_list_from_course_code($course_data['code']);
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$teachers = '';
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if (!empty($teacher_list)) {
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foreach($teacher_list as $teacher) {
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//$teachers[]= api_get_person_name($teacher['firstname'], $teacher['lastname']);
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$teachers[]= $teacher['firstname'].' '.$teacher['lastname'];
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}
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if (count($teachers) > 1) {
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$teachers = get_lang('Teachers').': '.implode(', ', $teachers);
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} else {
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$teachers = get_lang('Teacher').': '.implode('', $teachers);
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}
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}
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$left_content = '';
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$center_content = '';
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$right_content = $teachers;
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|
|
|
$header = array (
|
|
'odd' => array (
|
|
'L' => array (
|
|
'content' => $left_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
|
|
'C' => array (
|
|
'content' => $center_content,'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
|
|
'R' => array (
|
|
'content' => $right_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
|
|
'line' => 1,
|
|
),
|
|
'even' => array (
|
|
'L' => array (
|
|
'content' => $left_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
|
|
'C' => array (
|
|
'content' => $center_content,'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
|
|
'R' => array (
|
|
'content' => $right_content, 'font-size' => 10,'font-style' => 'B','font-family' => 'serif','color'=>'#000000'),
|
|
'line' => 1,
|
|
),
|
|
);
|
|
$this->pdf->SetHeader($header);// ('{DATE j-m-Y}|{PAGENO}/{nb}|'.$title);
|
|
}
|
|
}
|
|
|
|
public function set_custom_header($header) {
|
|
$this->custom_header = $header;
|
|
}
|
|
|
|
public function set_custom_footer($footer) {
|
|
$this->custom_footer = $footer;
|
|
}
|
|
|
|
public function format_pdf($course_data) {
|
|
$course_code = null;
|
|
if (!empty( $course_data)) {
|
|
$course_code = $course_data['code'];
|
|
}
|
|
|
|
/*$pdf->SetAuthor('Documents Chamilo');
|
|
$pdf->SetTitle('title');
|
|
$pdf->SetSubject('Exported from Chamilo Documents');
|
|
$pdf->SetKeywords('Chamilo Documents');
|
|
*/
|
|
$this->pdf->directionality = api_get_text_direction(); // TODO: To be read from the html document.
|
|
$this->pdf->useOnlyCoreFonts = true;
|
|
$this->pdf->mirrorMargins = 1; // Use different Odd/Even headers and footers and mirror margins
|
|
|
|
//Adding watermark
|
|
if (api_get_setting('pdf_export_watermark_enable') == 'true') {
|
|
$watermark_file = self::get_watermark($course_code);
|
|
|
|
if ($watermark_file) {
|
|
//http://mpdf1.com/manual/index.php?tid=269&searchstring=watermark
|
|
$this->pdf->SetWatermarkImage($watermark_file);
|
|
$this->pdf->showWatermarkImage = true;
|
|
} else {
|
|
$watermark_file = self::get_watermark(null);
|
|
if ($watermark_file) {
|
|
$this->pdf->SetWatermarkImage($watermark_file);
|
|
$this->pdf->showWatermarkImage = true;
|
|
}
|
|
}
|
|
if ($course_code) {
|
|
$watermark_text = api_get_course_setting('pdf_export_watermark_text');
|
|
if (empty($watermark_text)) {
|
|
$watermark_text = api_get_setting('pdf_export_watermark_text');
|
|
}
|
|
} else {
|
|
$watermark_text = api_get_setting('pdf_export_watermark_text');
|
|
}
|
|
if (!empty($watermark_text)) {
|
|
$this->pdf->SetWatermarkText(strcode2utf($watermark_text),0.1);
|
|
$this->pdf->showWatermarkText = true;
|
|
}
|
|
}
|
|
if (empty($this->custom_header)) {
|
|
self::set_header($course_data);
|
|
} else {
|
|
$this->pdf->SetHTMLHeader($this->custom_header);
|
|
}
|
|
|
|
if (empty($this->custom_footer)) {
|
|
self::set_footer();
|
|
} else {
|
|
$this->pdf->SetHTMLFooter($this->custom_footer);
|
|
}
|
|
}
|
|
} |