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