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- <?php
- /**
- * @file
- * Generates the PDF version using dompdf.
- *
- * This file is included by the print_pdf_dompdf module and includes the
- * functions that interface with the dompdf library.
- *
- * @ingroup print
- */
- /**
- * Implements hook_print_pdf_generate().
- */
- function print_pdf_dompdf_print_pdf_generate($html, $meta, $paper_size = NULL, $page_orientation = NULL) {
- module_load_include('inc', 'print', 'includes/print');
- $pdf_tool = explode('|', variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT));
- if (empty($paper_size)) {
- $paper_size = variable_get('print_pdf_paper_size', PRINT_PDF_PAPER_SIZE_DEFAULT);
- }
- if (empty($page_orientation)) {
- $page_orientation = variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT);
- }
- $images_via_file = variable_get('print_pdf_images_via_file', PRINT_PDF_IMAGES_VIA_FILE_DEFAULT);
- $unicode = TRUE;
- if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
- $font_subsetting = variable_get('print_pdf_dompdf_font_subsetting', PRINT_PDF_DOMPDF_FONT_SUBSETTING_DEFAULT);
- $unicode = variable_get('print_pdf_dompdf_unicode', PRINT_PDF_DOMPDF_UNICODE_DEFAULT);
- if (!defined('DOMPDF_ENABLE_PHP')) {
- define('DOMPDF_ENABLE_PHP', FALSE);
- }
- if (!defined('DOMPDF_ENABLE_REMOTE')) {
- define('DOMPDF_ENABLE_REMOTE', TRUE);
- }
- if (!defined('DOMPDF_TEMP_DIR')) {
- define('DOMPDF_TEMP_DIR', file_directory_temp());
- }
- if (!defined('DOMPDF_UNICODE_ENABLED')) {
- define('DOMPDF_UNICODE_ENABLED', $unicode);
- }
- if (!defined('DOMPDF_ENABLE_FONTSUBSETTING')) {
- define('DOMPDF_ENABLE_FONTSUBSETTING', $font_subsetting);
- }
- if (!defined('DOMPDF_FONT_CACHE')) {
- define('DOMPDF_FONT_CACHE', drupal_realpath('public://print_pdf/print_pdf_dompdf/fonts/'));
- }
- }
- $version = print_pdf_dompdf_pdf_tool_version($pdf_tool[1]);
- if (version_compare($version, '0.7', '<')) {
- // Version of dompdf is 0.6.* or 0.5.*.
- if (version_compare($version, '0.6', '<')) {
- // Version of dompdf is 0.5.
- spl_autoload_register('DOMPDF_autoload');
- }
- // Earlier dompdf versions could generate xml errors. Tell libxml to
- // hide them.
- libxml_use_internal_errors(TRUE);
- $dompdf = new DOMPDF();
- }
- else {
- // Version of dompdf is >= 0.7.
- $tool_path = dirname($pdf_tool[1]) . '/../autoload.inc.php';
- if (file_exists($tool_path)) {
- require_once $tool_path;
- }
- else {
- watchdog('print_pdf', 'Configured PDF tool does not exist at path: %path', array('%path' => $tool_path), WATCHDOG_ERROR);
- throw new Exception("Configured PDF tool does not exist, unable to generate PDF.");
- }
- $dompdf = new \Dompdf\Dompdf();
- $unicode = TRUE;
- if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
- $dompdf->set_option('enable_php', FALSE);
- $dompdf->set_option('enable_remote', TRUE);
- $dompdf->set_option('temp_dir', file_directory_temp());
- $dompdf->set_option('enable_font_subsetting', $font_subsetting);
- $dompdf->set_option('font_cache', drupal_realpath('public://print_pdf/print_pdf_dompdf/fonts/'));
- }
- }
- // Try to use local file access for image files.
- $html = _print_access_images_via_file($html, $images_via_file);
- // Remove all scripts due to security concerns.
- $html = preg_replace('!<script(.*?)>(.*?)</script>!is', '', $html);
- // Spaces in img URLs must be replaced with %20, when using external access.
- if (!$images_via_file) {
- $pattern = '!<(img\s[^>]*?)>!is';
- $html = preg_replace_callback($pattern, '_print_replace_spaces', $html);
- }
- // It seems dompdf has problems with something in system.css, don't use it.
- $html = preg_replace('!<link.*?modules/system/system.css.*?/>!', '', $html);
- $url_array = parse_url($meta['url']);
- $protocol = $url_array['scheme'] . '://';
- $host = $url_array['host'];
- $path = dirname($url_array['path']) . '/';
- $dompdf->set_base_path($path);
- $dompdf->set_host($host);
- $dompdf->set_paper(drupal_strtolower($paper_size), $page_orientation);
- $dompdf->set_protocol($protocol);
- // It seems dompdf can't handle footers cleanly, so disable the following.
- /* $html = theme('print_pdf_dompdf_footer', array('html' => $html)); */
- // If dompdf Unicode support is disabled, try to convert to ISO-8859-1 and
- // then to HTML entities.
- if (!$unicode) {
- // Convert the euro sign to an HTML entity.
- $html = str_replace('€', '€', $html);
- // Convert from UTF-8 to ISO 8859-1 and then to HTML entities.
- if (function_exists('utf8_decode')) {
- $html = utf8_decode($html);
- }
- // iconv fails silently when it encounters something that it doesn't know,
- // so don't use it.
- /*
- else if (function_exists('iconv')) {
- $html = iconv('UTF-8', 'ISO-8859-1', $html);
- }
- */
- elseif (function_exists('mb_convert_encoding')) {
- $html = mb_convert_encoding($html, 'ISO-8859-1', 'UTF-8');
- }
- elseif (function_exists('recode_string')) {
- $html = recode_string('UTF-8..ISO_8859-1', $html);
- }
- $html = htmlspecialchars_decode(htmlentities($html, ENT_NOQUOTES, 'ISO-8859-1'), ENT_NOQUOTES);
- }
- else {
- // Otherwise, ensure the content is properly formatted Unicode.
- $html = mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8');
- }
- // Must get rid of tbody (dompdf goes into recursion).
- $html = preg_replace('!<tbody[^>]*?>|</tbody>!i', '', $html);
- $dompdf->load_html($html);
- $dompdf->render();
- return $dompdf->output();
- }
- /**
- * Format the dompdf footer contents.
- *
- * @param array $vars
- * An associative array containing:
- * - $html: contents of the body of the HTML from the original node.
- *
- * @return string
- * customized HTML text
- *
- * @ingroup themeable
- * @ingroup print_themeable
- */
- function theme_print_pdf_dompdf_footer($vars) {
- preg_match('!<div class="print-footer">(.*?)</div>!si', $vars['html'], $tpl_footer);
- if (isset($tpl_footer[1])) {
- $html = str_replace($tpl_footer[0], '', $vars['html']);
- $text = '<script type="text/php">
- if (isset($pdf)) {
- $font = Font_Metrics::get_font("verdana");;
- $size = 10;
- $color = array(0,0,0);
- $text_height = Font_Metrics::get_font_height($font, $size);
- $w = $pdf->get_width();
- $h = $pdf->get_height();
- $footer = $pdf->open_object();
- // Draw a line along the bottom
- $y = $h - 25;
- $pdf->line(15, $y, $w - 15, $y, $color, 1);
- $y += $text_height / 2;
- $pdf->page_text(15, $y, \'' . addslashes(strip_tags($tpl_footer[1])) . '\', $font, $size, $color);
- $pdf->close_object();
- $pdf->add_object($footer, "all");
- // Center the text
- $width = Font_Metrics::get_text_width("Page 1 of 2", $font, $size);
- $pagenumtxt = t("Page !n of !total", array("!n" => "{PAGE_NUM}", "!total" => "{PAGE_COUNT}"));
- $pdf->page_text($w - 15 - $width, $y, $pagenumtxt, $font, $size, $color);
- }
- </script>';
- return str_replace("<body>", "<body>" . $text, $html);
- }
- else {
- return $vars['html'];
- }
- }
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