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pdf.lib.php
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pdf.lib.php
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<?php
/* See license terms in /license.txt */
use Chamilo\CoreBundle\Component\Utils\ChamiloApi;
use Mpdf\Mpdf;
use Mpdf\MpdfException;
use Mpdf\Utils\UtfString;
/**
* Class PDF.
*/
class PDF
{
/** @var Mpdf */
public $pdf;
public $custom_header = [];
public $custom_footer = [];
public $params = [];
public $template;
/**
* Creates the Mpdf object.
*
* @param string $pageFormat format A4 A4-L see
* http://mpdf1.com/manual/index.php?tid=184&searchstring=format
* @param string $orientation orientation "P" = Portrait "L" = Landscape
* @param array $params
* @param Template $template
*
* @throws MpdfException
*/
public function __construct(
$pageFormat = 'A4',
$orientation = 'P',
$params = [],
$template = null
) {
$this->template = $template;
/* More info @ http://mpdf1.com/manual/index.php?tid=184&searchstring=Mpdf */
if (!in_array($orientation, ['P', 'L'])) {
$orientation = 'P';
}
//left, right, top, bottom, margin_header, margin footer
$params['left'] = isset($params['left']) ? $params['left'] : 15;
$params['right'] = isset($params['right']) ? $params['right'] : 15;
$params['top'] = isset($params['top']) ? $params['top'] : 30;
$params['bottom'] = isset($params['bottom']) ? $params['bottom'] : 30;
$params['margin_footer'] = isset($params['margin_footer']) ? $params['margin_footer'] : 8;
$this->params['filename'] = isset($params['filename']) ? $params['filename'] : api_get_local_time();
$this->params['pdf_title'] = isset($params['pdf_title']) ? $params['pdf_title'] : '';
$this->params['pdf_description'] = $params['pdf_description'] ?? '';
$this->params['course_info'] = isset($params['course_info']) ? $params['course_info'] : api_get_course_info();
$this->params['session_info'] = isset($params['session_info']) ? $params['session_info'] : api_get_session_info(api_get_session_id());
$this->params['course_code'] = isset($params['course_code']) ? $params['course_code'] : api_get_course_id();
$this->params['add_signatures'] = isset($params['add_signatures']) ? $params['add_signatures'] : [];
$this->params['show_real_course_teachers'] = isset($params['show_real_course_teachers']) ? $params['show_real_course_teachers'] : false;
$this->params['student_info'] = isset($params['student_info']) ? $params['student_info'] : false;
$this->params['show_grade_generated_date'] = isset($params['show_grade_generated_date']) ? $params['show_grade_generated_date'] : false;
$this->params['show_teacher_as_myself'] = isset($params['show_teacher_as_myself']) ? $params['show_teacher_as_myself'] : true;
$localTime = api_get_local_time();
$this->params['pdf_date'] = isset($params['pdf_date']) ? $params['pdf_date'] : api_format_date($localTime, DATE_TIME_FORMAT_LONG);
$this->params['pdf_date_only'] = isset($params['pdf_date']) ? $params['pdf_date'] : api_format_date($localTime, DATE_FORMAT_LONG);
$this->pdf = new Mpdf(
[
'mode' => 'UTF-8',
'format' => $pageFormat,
'default_font_size' => '',
'default_font' => '',
'margin_left' => $params['left'],
'margin_right' => $params['right'],
'margin_top' => $params['top'],
'margin_bottom' => $params['bottom'],
'margin_header' => 8,
'margin_footer' => 8,
'orientation' => $orientation,
'tempDir' => api_get_path(SYS_ARCHIVE_PATH).'mpdf/',
]
);
$this->pdf->margin_footer = $params['margin_footer'];
// Default value is 96 set in the mpdf library file config.php
$value = api_get_configuration_value('pdf_img_dpi');
if (!empty($value)) {
$this->pdf->img_dpi = (int) $value;
}
}
/**
* Export the given HTML to PDF, using a global template.
*
* @uses \export/table_pdf.tpl
*
* @param string $content
* @param bool|false $saveToFile
* @param bool|false $returnHtml
* @param bool $addDefaultCss (bootstrap/default/base.css)
* @param array
*
* @throws MpdfException
*
* @return string|null
*/
public function html_to_pdf_with_template(
$content,
$saveToFile = false,
$returnHtml = false,
$addDefaultCss = false,
$extraRows = []
) {
if (empty($this->template)) {
$tpl = new Template('', false, false, false, false, true, false);
} else {
$tpl = $this->template;
}
// Assignments
$tpl->assign('pdf_content', $content);
// Showing only the current teacher/admin instead the all teacher list name see BT#4080
$teacher_list = null;
if (isset($this->params['show_real_course_teachers']) &&
$this->params['show_real_course_teachers']
) {
if (isset($this->params['session_info']) &&
!empty($this->params['session_info'])
) {
$teacher_list = SessionManager::getCoachesByCourseSessionToString(
$this->params['session_info']['id'],
$this->params['course_info']['real_id']
);
} else {
$teacher_list = CourseManager::getTeacherListFromCourseCodeToString(
$this->params['course_code']
);
}
} else {
$user_info = api_get_user_info();
if ($this->params['show_teacher_as_myself']) {
$teacher_list = $user_info['complete_name'];
}
}
$tpl->assign('pdf_course', $this->params['course_code']);
$tpl->assign('pdf_course_info', $this->params['course_info']);
$tpl->assign('pdf_session_info', $this->params['session_info']);
$tpl->assign('pdf_date', $this->params['pdf_date']);
$tpl->assign('pdf_date_only', $this->params['pdf_date_only']);
$tpl->assign('pdf_teachers', $teacher_list);
$tpl->assign('pdf_title', $this->params['pdf_title']);
$tpl->assign('pdf_description', $this->params['pdf_description']);
$tpl->assign('pdf_student_info', $this->params['student_info']);
$tpl->assign('show_grade_generated_date', $this->params['show_grade_generated_date']);
$tpl->assign('add_signatures', $this->params['add_signatures']);
$tpl->assign('extra_rows', $extraRows);
// Getting template
$tableTemplate = $tpl->get_template('export/table_pdf.tpl');
$html = $tpl->fetch($tableTemplate);
$html = api_utf8_encode($html);
if ($returnHtml) {
return $html;
}
$css = api_get_print_css();
self::content_to_pdf(
$html,
$css,
$this->params['filename'],
$this->params['course_code'],
'D',
$saveToFile,
null,
$returnHtml,
$addDefaultCss
);
}
/**
* Converts HTML files to PDF.
*
* @param mixed $html_file_array 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 pdf name
* @param null $course_code (if you are using html that are located
* in the document tool you must provide this)
* @param bool $print_title add title
* @param bool $complete_style show header and footer if true
* @param bool $addStyle
* @param string $mainTitle
* @param bool $generateToFile Optional. When it is TRUE, then the output file is move to app/cache
*
* @throws MpdfException
*
* @return false|null
*/
public function html_to_pdf(
$html_file_array,
$pdf_name = '',
$course_code = null,
$print_title = false,
$complete_style = true,
$addStyle = true,
$mainTitle = '',
$generateToFile = false
) {
if (empty($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
$html_file_array = [$html_file_array];
}
if (!empty($course_code)) {
$course_data = api_get_course_info($course_code);
} else {
$course_data = api_get_course_info();
}
// Clean styles and javascript document
$clean_search = [
'@<script[^>]*?>.*?</script>@si',
'@<style[^>]*?>.*?</style>@si',
];
// Formatting the pdf
self::format_pdf($course_data, $complete_style);
$counter = 1;
foreach ($html_file_array as $file) {
// Add a page break per file
$page_break = '<pagebreak>';
if ($counter == count($html_file_array)) {
$page_break = '';
}
// if the array provided contained subarrays with 'title' entry,
// then print the title in the PDF
if (is_array($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);
}
$counter++;
if (empty($file) && !empty($html_title)) {
// this is a chapter, print title & skip the rest
if ($counter === 2 && !empty($mainTitle)) {
$this->pdf->WriteHTML(
'<html><body><h2 style="text-align: center">'.$mainTitle.'</h2></body></html>'
);
}
if ($print_title) {
$this->pdf->WriteHTML(
'<html><body><h3>'.$html_title.'</h3></body></html>'.$page_break
);
}
continue;
} else {
if ($counter === 2 && !empty($mainTitle)) {
$this->pdf->WriteHTML(
'<html><body><h2 style="text-align: center">'.$mainTitle.'</h2></body></html>'
);
}
}
if (!file_exists($file)) {
continue;
}
if ($addStyle) {
$basicStyles = [
api_get_path(SYS_PATH).'web/assets/bootstrap/dist/css/bootstrap.min.css',
api_get_path(SYS_PATH).'web/css/base.css',
api_get_path(SYS_PATH).'web/css/themes/'.api_get_visual_theme().'/default.css',
api_get_print_css(false),
];
foreach ($basicStyles as $style) {
if (file_exists($style)) {
$cssContent = file_get_contents($style);
try {
@$this->pdf->WriteHTML($cssContent, 1);
} catch (MpdfException $e) {
error_log($e);
}
}
}
}
// 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>'
);
}
$file_info = pathinfo($file);
$extension = $file_info['extension'];
if (in_array($extension, ['html', 'htm'])) {
$dirName = $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, $document_html);
if (!empty($course_data['path'])) {
$document_html = str_replace('../', '', $document_html);
// Fix app/upload links convert web to system paths
$document_html = str_replace(
api_get_path(WEB_UPLOAD_PATH),
api_get_path(SYS_UPLOAD_PATH),
$document_html
);
}
$document_html = self::fixImagesPaths($document_html, $course_data, $dirName);
// The library Mpdf expects UTF-8 encoded input data.
api_set_encoding_html($document_html, 'UTF-8');
// TODO: Maybe it is better idea the title to be passed through
$title = api_get_title_html($document_html, 'UTF-8', 'UTF-8');
// $_GET[] too, as it is done with file name.
// At the moment the title is retrieved from the html document itself.
if (empty($title)) {
$title = $filename; // Here file name is expected to contain ASCII symbols only.
}
if (!empty($document_html)) {
@$this->pdf->WriteHTML($document_html.$page_break);
}
} elseif (in_array($extension, ['jpg', 'jpeg', 'png', 'gif'])) {
// Images
$image = Display::img($file);
@$this->pdf->WriteHTML('<html><body>'.$image.'</body></html>'.$page_break);
}
}
if (empty($pdf_name)) {
$output_file = 'pdf_'.date('Y-m-d-his').'.pdf';
} else {
$pdf_name = api_replace_dangerous_char($pdf_name);
$output_file = $pdf_name.'.pdf';
}
// F to save the pdf in a file
if ($generateToFile) {
@$this->pdf->Output(
api_get_path(SYS_ARCHIVE_PATH).$output_file,
'F'
);
} else {
@$this->pdf->Output($output_file, 'D');
}
exit;
}
/**
* Converts an html string to PDF.
*
* @param string $document_html valid html
* @param string $css CSS content of a CSS file
* @param string $pdf_name pdf name
* @param string $course_code course code
* (if you are using html that are located in the document tool you must provide this)
* @param string $outputMode the MPDF output mode can be:
* @param bool $saveInFile
* @param string $fileToSave
* @param bool $returnHtml
* @param bool $addDefaultCss
* @param bool $completeHeader
*
* @throws MpdfException
*
* 'I' (print on standard output),
* 'D' (download file) (this is the default value),
* 'F' (save to local file) or
* 'S' (return as a string)
*
* @return string Web path
*/
public function content_to_pdf(
$document_html,
$css = '',
$pdf_name = '',
$course_code = null,
$outputMode = 'D',
$saveInFile = false,
$fileToSave = null,
$returnHtml = false,
$addDefaultCss = false,
$completeHeader = true
) {
$urlAppend = api_get_configuration_value('url_append');
if (empty($document_html)) {
return false;
}
// clean styles and javascript document
$clean_search = [
'@<script[^>]*?>.*?</script>@si',
'@<style[^>]*?>.*?</style>@siU',
];
// Formatting the pdf
$course_data = api_get_course_info($course_code);
self::format_pdf($course_data, $completeHeader);
$document_html = preg_replace($clean_search, '', $document_html);
//absolute path for frames.css //TODO: necessary?
$absolute_css_path = api_get_path(WEB_CSS_PATH).api_get_setting('stylesheets').'/frames.css';
$document_html = str_replace('href="./css/frames.css"', 'href="'.$absolute_css_path.'"', $document_html);
$document_html = str_replace('../../', '', $document_html);
$document_html = str_replace('../', '', $document_html);
$document_html = str_replace(
(empty($urlAppend) ? '' : $urlAppend.'/').'courses/'.$course_code.'/document/',
'',
$document_html
);
if (!empty($course_data['path'])) {
$document_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/document/';
$doc = new DOMDocument();
@$doc->loadHTML($document_html);
//Fixing only images @todo do the same thing with other elements
$elements = $doc->getElementsByTagName('img');
$protocol = api_get_protocol();
$replaced = [];
if (!empty($elements)) {
foreach ($elements as $item) {
$old_src = $item->getAttribute('src');
if (in_array($old_src, $replaced)) {
continue;
}
if (strpos($old_src, $protocol) === false) {
if (strpos($old_src, '/main/default_course_document') === false) {
if (strpos($old_src, '/main/inc/lib/') === false &&
strpos($old_src, '/app/upload/') === false
) {
$old_src_fixed = str_replace(
api_get_path(REL_COURSE_PATH).$course_data['path'].'/document/',
'',
$old_src
);
$old_src_fixed = str_replace(
'courses/'.$course_data['path'].'/document/',
'',
$old_src_fixed
);
$new_path = $document_path.$old_src_fixed;
$document_html = str_replace($old_src, $new_path, $document_html);
$replaced[] = $old_src;
}
}
}
}
}
}
// Use sys path to correct export images
$document_html = str_replace(
api_get_path(WEB_CODE_PATH).'img/',
api_get_path(SYS_CODE_PATH).'img/',
$document_html
);
$theme = api_get_visual_theme();
$document_html = str_replace(
api_get_path(WEB_CSS_PATH).'themes/'.$theme,
api_get_path(SYS_PUBLIC_PATH).'css/themes/'.$theme,
$document_html
);
$document_html = str_replace(api_get_path(WEB_UPLOAD_PATH), api_get_path(SYS_UPLOAD_PATH), $document_html);
$document_html = str_replace(api_get_path(WEB_ARCHIVE_PATH), api_get_path(SYS_ARCHIVE_PATH), $document_html);
// The library Mpdf expects UTF-8 encoded input data.
api_set_encoding_html($document_html, 'UTF-8');
// At the moment the title is retrieved from the html document itself.
if ($returnHtml) {
return "<style>$css</style>".$document_html;
}
if (!empty($css)) {
try {
@$this->pdf->WriteHTML($css, 1);
} catch (MpdfException $e) {
error_log($e);
}
}
$cssBootstrap = file_get_contents(api_get_path(SYS_PATH).'web/assets/bootstrap/dist/css/bootstrap.min.css');
if ($addDefaultCss) {
$cssContent = api_get_print_css();
try {
@$this->pdf->WriteHTML($cssBootstrap, 1);
@$this->pdf->WriteHTML($cssContent, 1);
} catch (MpdfException $e) {
error_log($e);
}
}
try {
@$this->pdf->WriteHTML($document_html);
} catch (MpdfException $e) {
error_log($e);
}
if (empty($pdf_name)) {
$output_file = 'pdf_'.date('Y-m-d-his').'.pdf';
} else {
$pdf_name = api_replace_dangerous_char($pdf_name);
$output_file = $pdf_name.'.pdf';
}
if ($outputMode === 'F') {
$output_file = api_get_path(SYS_ARCHIVE_PATH).$output_file;
}
if ($saveInFile) {
$fileToSave = !empty($fileToSave) ? $fileToSave : api_get_path(SYS_ARCHIVE_PATH).uniqid();
@$this->pdf->Output(
$fileToSave,
$outputMode
); // F to save the pdf in a file
} else {
@$this->pdf->Output(
$output_file,
$outputMode
); // F to save the pdf in a file
}
if ($outputMode != 'F') {
exit;
}
return $output_file;
}
/**
* Gets the watermark from the platform or a course.
*
* @param string course code (optional)
* @param mixed web path of the watermark image, false if there is nothing to return
*
* @return string
*/
public static function get_watermark($course_code = null)
{
$web_path = false;
$urlId = api_get_current_access_url_id();
if (!empty($course_code) && api_get_setting('pdf_export_watermark_by_course') === 'true') {
$course_info = api_get_course_info($course_code);
// course path
$store_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/'.$urlId.'_pdf_watermark.png';
if (file_exists($store_path)) {
$web_path = api_get_path(WEB_COURSE_PATH).$course_info['path'].'/'.$urlId.'_pdf_watermark.png';
}
} else {
// course path
$store_path = api_get_path(SYS_CODE_PATH).'default_course_document/images/'.$urlId.'_pdf_watermark.png';
if (file_exists($store_path)) {
$web_path = api_get_path(WEB_CODE_PATH).'default_course_document/images/'.$urlId.'_pdf_watermark.png';
}
}
return $web_path;
}
/**
* Deletes the watermark from the Platform or Course.
*
* @param string $course_code course code (optional)
* @param mixed web path of the watermark image, false if there is nothing to return
*
* @return bool
*/
public function delete_watermark($course_code = null)
{
$urlId = api_get_current_access_url_id();
if (!empty($course_code) && api_get_setting('pdf_export_watermark_by_course') == 'true') {
$course_info = api_get_course_info($course_code);
// course path
$store_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/'.$urlId.'_pdf_watermark.png';
} else {
// course path
$store_path = api_get_path(SYS_CODE_PATH).'default_course_document/images/'.$urlId.'_pdf_watermark.png';
}
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 filename
* @param string $source_file 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)
{
$urlId = api_get_current_access_url_id();
if (!empty($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
$web_path = api_get_path(WEB_CODE_PATH).'default_course_document/images/'.$urlId.'_pdf_watermark.png';
}
$course_image = $store_path.'/'.$urlId.'_pdf_watermark.png';
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;*/
}
/**
* Sets the PDF footer.
*/
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
$view = new Template('', false, false, false, true, false, false);
$template = $view->get_template('export/pdf_footer.tpl');
$footerHTML = $view->fetch($template);
$this->pdf->SetHTMLFooter($footerHTML, 'E'); //Even pages
$this->pdf->SetHTMLFooter($footerHTML, 'O'); //Odd pages
}
public function setCertificateFooter()
{
$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
$view = new Template('', false, false, false, true, false, false);
$template = $view->get_template('export/pdf_certificate_footer.tpl');
$footerHTML = $view->fetch($template);
$this->pdf->SetHTMLFooter($footerHTML, 'E'); //Even pages
$this->pdf->SetHTMLFooter($footerHTML, 'O'); //Odd pages
}
/**
* Sets the PDF header.
*
* @param array $courseInfo
*/
public function set_header($courseInfo)
{
$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
$userId = api_get_user_id();
if (!empty($courseInfo['code'])) {
$teacher_list = CourseManager::get_teacher_list_from_course_code($courseInfo['code']);
$teachers = '';
if (!empty($teacher_list)) {
foreach ($teacher_list as $teacher) {
if ($teacher['user_id'] != $userId) {
continue;
}
// Do not show the teacher list see BT#4080 only the current teacher name
$teachers = api_get_person_name($teacher['firstname'], $teacher['lastname']);
}
}
$organization = ChamiloApi::getPlatformLogo('', [], true, true);
// Use custom logo image.
$pdfLogo = api_get_setting('pdf_logo_header');
if ($pdfLogo === 'true') {
$visualTheme = api_get_visual_theme();
$img = api_get_path(SYS_CSS_PATH).'themes/'.$visualTheme.'/images/pdf_logo_header.png';
if (file_exists($img)) {
$organization = "<img src='$img'>";
}
}
$view = new Template('', false, false, false, true, false, false);
$view->assign('teacher_name', $teachers);
$view->assign('organization', $organization);
$template = $view->get_template('export/pdf_header.tpl');
$headerHTML = $view->fetch($template);
$this->pdf->SetHTMLHeader($headerHTML, 'E');
$this->pdf->SetHTMLHeader($headerHTML, 'O');
}
}
/**
* @param string $header html content
*/
public function set_custom_header($header)
{
$this->custom_header = $header;
}
/**
* @param array $footer html content
*/
public function set_custom_footer($footer)
{
$this->custom_footer = $footer;
}
/**
* Pre-formats a PDF to the right size and, if not stated otherwise, with
* header, footer and watermark (if any).
*
* @param array $courseInfo General course information (to fill headers)
* @param bool $complete Whether we want headers, footers and watermark or not
*/
public function format_pdf($courseInfo, $complete = true)
{
$courseCode = null;
if (!empty($courseInfo)) {
$courseCode = $courseInfo['code'];
}
/*$pdf->SetAuthor('Documents Chamilo');
$pdf->SetTitle('title');
$pdf->SetSubject('Exported from Chamilo Documents');
$pdf->SetKeywords('Chamilo Documents');
*/
// TODO: To be read from the html document.
$this->pdf->directionality = api_get_text_direction();
// Use different Odd/Even headers and footers and mirror margins
$this->pdf->mirrorMargins = 1;
// Add decoration only if not stated otherwise
if ($complete) {
// Adding watermark
if (api_get_setting('pdf_export_watermark_enable') === 'true') {
$watermark_file = self::get_watermark($courseCode);
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;
}
}
$watermark_text = api_get_setting('pdf_export_watermark_text');
if ($courseCode && 'true' === api_get_setting('pdf_export_watermark_by_course')) {
$courseWaterMark = api_get_course_setting('pdf_export_watermark_text');
if (!empty($courseWaterMark) && -1 != $courseWaterMark) {
$watermark_text = $courseWaterMark;
}
}
if (!empty($watermark_text)) {
$this->pdf->SetWatermarkText(
UtfString::strcode2utf($watermark_text),
0.1
);
$this->pdf->showWatermarkText = true;
}
}
if (empty($this->custom_header)) {
self::set_header($courseInfo);
} else {
$this->pdf->SetHTMLHeader($this->custom_header, 'E');
$this->pdf->SetHTMLHeader($this->custom_header, 'O');
}
if (empty($this->custom_footer)) {
self::set_footer();
} else {
$this->pdf->SetHTMLFooter($this->custom_footer);
}
}
}
/**
* Generate a PDF file from $html in SYS_APP_PATH.
*
* @param string $html PDF content
* @param string $fileName File name
* @param string $dest Optional. Directory to move file
*
* @return string The PDF path
*/
public function exportFromHtmlToFile($html, $fileName, $dest = null)
{
$this->template = $this->template ?: new Template('', false, false, false, false, false, false);
$pdfPath = self::content_to_pdf(
$html,
api_get_print_css(),
$fileName,
$this->params['course_code'],
'F'
);
if (!$dest) {
return $pdfPath;
}
move($pdfPath, $dest);
return $dest.basename($pdfPath);
}
/**
* Create a PDF and save it into the documents area.
*
* @param string $htmlContent HTML Content
* @param string $fileName The file name
* @param int $courseId The course ID
* @param int $sessionId Optional. The session ID
*/
public function exportFromHtmlToDocumentsArea(
$htmlContent,
$fileName,
$courseId,
$sessionId = 0
) {
$userId = api_get_user_id();
$courseInfo = api_get_course_info_by_id($courseId);
$courseDirectory = api_get_path(SYS_COURSE_PATH).$courseInfo['directory'].'/document/';
$docPath = $this->exportFromHtmlToFile(
$htmlContent,
$fileName,
$courseDirectory
);
$docId = add_document(
$courseInfo,
str_replace($courseDirectory, '/', $docPath),
'file',
filesize($docPath),
$fileName,
null,
false,
true,
null,
$sessionId,
$userId
);
api_item_property_update(
$courseInfo,
TOOL_DOCUMENT,
$docId,
'DocumentAdded',
$userId
);
Display::addFlash(Display::return_message(get_lang('ItemAdded')));
}
/**
* @param string $theme
* @param bool $fullPage
*
* @throws MpdfException
*/
public function setBackground($theme, $fullPage = false)
{
$themeName = empty($theme) ? api_get_visual_theme() : $theme;
$themeDir = \Template::getThemeDir($themeName);
$customLetterhead = $themeDir.'images/letterhead.png';
$urlPathLetterhead = api_get_path(SYS_CSS_PATH).$customLetterhead;
if (file_exists($urlPathLetterhead)) {
$urlWebLetterhead = 'url('.api_get_path(WEB_CSS_PATH).$customLetterhead.')';
} else {
$urlWebLetterhead = 'url('.api_get_path(WEB_CSS_PATH).'themes/chamilo/images/letterhead.png)';
}
if ($fullPage) {
$this->pdf->SetDisplayMode('fullpage');
$this->pdf->SetDefaultBodyCSS('background', $urlWebLetterhead);
$this->pdf->SetDefaultBodyCSS('background-image-resize', '6');
}
}
/**
* Fix images source paths to allow export to pdf.
*
* @param string $documentHtml
* @param string $dirName
*
* @return string
*/
private static function fixImagesPaths($documentHtml, array $courseInfo, $dirName = '')
{
$documentHtml = '<?xml encoding="utf-8" ?>'.$documentHtml;
$doc = new DOMDocument();
@$doc->loadHTML($documentHtml);
$elements = $doc->getElementsByTagName('img');
if (empty($elements)) {
return $doc->saveHTML();
}
$protocol = api_get_protocol();
$sysCodePath = api_get_path(SYS_CODE_PATH);
$sysCoursePath = api_get_path(SYS_COURSE_PATH);
$sysUploadPath = api_get_path(SYS_UPLOAD_PATH);
$documentPath = $courseInfo ? $sysCoursePath.$courseInfo['path'].'/document/' : '';
$notFoundImagePath = Display::return_icon(
'closed-circle.png',
get_lang('FileNotFound'),
[],
ICON_SIZE_TINY,
false,
true
);
/** @var \DOMElement $element */
foreach ($elements as $element) {
$src = $element->getAttribute('src');
$src = trim($src);
if (api_filename_has_blacklisted_stream_wrapper($src)) {
$element->setAttribute('src', $notFoundImagePath);