print_pdf/print_pdf.pages.inc

   1 <?php
   2 // $Id$
   3
   4 /**
   5  * @file
   6  * Generates the PDF versions of the pages
   7  *
   8  * This file is included by the print_pdf module and includes the
   9  * functions that interface with the PDF generation packages.
  10  */
  11
  12 require_once(DRUPAL_ROOT .'/'. drupal_get_path('module', 'print') .'/print.pages.inc');
  13
  14 /**
  15  * Generate a PDF version of the printer-friendly page
  16  *
  17  * @see print_controller()
  18  * @see _print_get_template()
  19  * @see _print_pdf_dompdf()
  20  * @see _print_pdf_tcpdf()
  21  */
  22 function print_pdf_controller() {
  23   global $base_url;
  24
  25   $args = func_get_args();
  26   // Remove the printpdf/ prefix
  27   $path = implode('/', $args);
  28   $cid = isset($_GET['comment']) ? (int)$_GET['comment'] : NULL;
  29
  30   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
  31
  32   $print = print_controller($path, $cid);
  33   if ($print === FALSE) {
  34     return;
  35   }
  36
  37   // Img elements must be set to absolute
  38   $pattern = '!<(img\s[^>]*?)>!is';
  39   $print['content'] = preg_replace_callback($pattern, '_print_rewrite_urls', $print['content']);
  40   $print['logo'] = preg_replace_callback($pattern, '_print_rewrite_urls', $print['logo']);
  41   $print['footer_message'] = preg_replace_callback($pattern, '_print_rewrite_urls', $print['footer_message']);
  42   // And converted from private to public paths
  43   $file_downloads = variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC);
  44   if ($file_downloads == FILE_DOWNLOADS_PRIVATE) {
  45     $pattern = "!(<img\s[^>]*?src\s*?=\s*?['\"]?${base_url}/)system/files(/[^>]*?>)!is";
  46     $replacement = '$1'. file_directory_path() .'$2';
  47     $print['content'] = preg_replace($pattern, $replacement, $print['content']);
  48     $print['logo'] = preg_replace($pattern, $replacement, $print['logo']);
  49     $print['footer_message'] = preg_replace($pattern, $replacement, $print['footer_message']);
  50   }
  51
  52   $node = $print['node'];
  53   ob_start();
  54   include_once(DRUPAL_ROOT .'/'. _print_get_template('pdf', $print['type']));
  55   $html = ob_get_contents();
  56   ob_end_clean();
  57
  58   if (basename($print_pdf_pdf_tool) == 'dompdf_config.inc.php') {
  59     _print_pdf_dompdf($print, $html, $path .'.pdf');
  60   }
  61   elseif (basename($print_pdf_pdf_tool) == 'tcpdf.php') {
  62     _print_pdf_tcpdf($print, $html, $path .'.pdf');
  63   }
  64   else {
  65     return drupal_not_found();
  66   }
  67 }
  68
  69 /**
  70  * Generate the PDF file using the dompdf library
  71  *
  72  * @param $print
  73  *   array containing the configured data
  74  * @param $html
  75  *   contents of the post-processed template already with the node data
  76  * @param $filename
  77  *   name of the PDF file to be generated
  78  * @see print_pdf_controller()
  79  */
  80 function _print_pdf_dompdf($print, $html, $filename) {
  81   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
  82   $print_pdf_paper_size = variable_get('print_pdf_paper_size', PRINT_PDF_PAPER_SIZE_DEFAULT);
  83   $print_pdf_page_orientation = variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT);
  84   $print_pdf_content_disposition = variable_get('print_pdf_content_disposition', PRINT_PDF_CONTENT_DISPOSITION_DEFAULT);
  85   require_once(DRUPAL_ROOT .'/'. $print_pdf_pdf_tool);
  86
  87   // dompdf seems to have problems with something in system.css so let's not use it
  88   $html = preg_replace('!<link.*?modules/system/system.css.*?/>!', '', $html);
  89
  90   $url_array  = parse_url($print['url']);
  91
  92   $protocol = $url_array['scheme'] .'://';
  93   $host = $url_array['host'];
  94   $path = dirname($url_array['path']) .'/';
  95
  96   $dompdf = new DOMPDF();
  97   $dompdf->set_base_path($path);
  98   $dompdf->set_host($host);
  99   $dompdf->set_paper(drupal_strtolower($print_pdf_paper_size), $print_pdf_page_orientation);
 100   $dompdf->set_protocol($protocol);
 101
 102   $html = theme('print_pdf_dompdf_footer', $html);
 103
 104   $dompdf->load_html(utf8_decode($html));
 105
 106   $dompdf->render();
 107   $dompdf->stream($filename, array('Attachment' => ($print_pdf_content_disposition == 2)));
 108 }
 109
 110 /**
 111  * Generate the PDF file using the TCPDF library
 112  *
 113  * @param $print
 114  *   array containing the configured data
 115  * @param $html
 116  *   contents of the post-processed template already with the node data
 117  * @param $filename
 118  *   name of the PDF file to be generated
 119  * @see print_pdf_controller()
 120  */
 121 function _print_pdf_tcpdf($print, $html, $filename) {
 122   global $base_url;
 123   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
 124   $print_pdf_paper_size = variable_get('print_pdf_paper_size', PRINT_PDF_PAPER_SIZE_DEFAULT);
 125   $print_pdf_page_orientation = variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT);
 126   $print_pdf_content_disposition = variable_get('print_pdf_content_disposition', PRINT_PDF_CONTENT_DISPOSITION_DEFAULT);
 127
 128   $pdf_tool_path = realpath(dirname($print_pdf_pdf_tool));
 129
 130   define('K_TCPDF_EXTERNAL_CONFIG', TRUE);
 131   define('K_PATH_MAIN', dirname($_SERVER['SCRIPT_FILENAME']));
 132   define('K_PATH_URL', $base_url);
 133   define('K_PATH_FONTS', $pdf_tool_path .'/fonts/');
 134   define('K_PATH_CACHE', $pdf_tool_path .'/cache/');
 135   define('K_PATH_IMAGES', '');
 136   define('K_BLANK_IMAGE', $pdf_tool_path .'/images/_blank.png');
 137   define('K_CELL_HEIGHT_RATIO', 1.25);
 138   define('K_SMALL_RATIO', 2/3);
 139
 140   require_once(DRUPAL_ROOT .'/'. $print_pdf_pdf_tool);
 141   if (strpos(PDF_PRODUCER, 'PHP4') === FALSE) {
 142     require_once(DRUPAL_ROOT .'/'. drupal_get_path('module', 'print_pdf') .'/print_pdf.class.inc');
 143   }
 144   else {
 145     drupal_set_message(t("The PHP4 version of TCPDF is not supported. Please upgrade it."), 'error', FALSE);
 146     drupal_goto($_GET['q']);
 147   }
 148
 149   $font = Array(
 150     variable_get('print_pdf_font_family', PRINT_PDF_FONT_FAMILY_DEFAULT),
 151     '',
 152     variable_get('print_pdf_font_size', PRINT_PDF_FONT_SIZE_DEFAULT),
 153   );
 154   $orientation = drupal_strtoupper($print_pdf_page_orientation[0]);
 155
 156   // create new PDF document
 157   $pdf = new PrintTCPDF($orientation , 'mm', $print_pdf_paper_size, TRUE);
 158
 159   // set document information
 160   $pdf->SetAuthor(strip_tags($print['submitted']));
 161   $pdf->SetCreator(variable_get('site_name', 'Drupal'));
 162   $pdf->SetTitle($print['title']);
 163   $keys = implode(' ', explode("\n", trim(strip_tags($print['taxonomy']))));
 164   $pdf->SetKeywords($keys);
 165   $pdf->setPDFVersion('1.6');
 166
 167   $pdf = theme('print_pdf_tcpdf_header', $pdf, $html, $font);
 168   $pdf = theme('print_pdf_tcpdf_footer', $pdf, $html, $font);
 169   $pdf = theme('print_pdf_tcpdf_page', $pdf);
 170
 171   //initialize document
 172   $pdf->AliasNbPages();
 173
 174   // add a page
 175   $pdf->AddPage();
 176
 177   $pdf = theme('print_pdf_tcpdf_content', $pdf, $html, $font);
 178
 179   // reset pointer to the last page
 180   $pdf->lastPage();
 181
 182   //Close and output PDF document
 183   $output_dest = ($print_pdf_content_disposition == 2) ? 'D' : 'I';
 184   $pdf->Output($filename, $output_dest);
 185 }
 186
 187 /**
 188  * Format the dompdf footer contents
 189  *
 190  * @param $html
 191  *   contents of the body of the HTML from the original node
 192  * @see theme_print_pdf_tcpdf_footer()
 193  */
 194 function theme_print_pdf_dompdf_footer(&$html) {
 195   preg_match('!<div class="print-footer">(.*?)</div>!si', $html, $tpl_footer);
 196   $html = str_replace($tpl_footer[0], '', $html);
 197
 198   $text = '<script type="text/php">
 199     if (isset($pdf)) {
 200       $font = Font_Metrics::get_font("verdana");;
 201       $size = 10;
 202       $color = array(0,0,0);
 203       $text_height = Font_Metrics::get_font_height($font, $size);
 204
 205       $w = $pdf->get_width();
 206       $h = $pdf->get_height();
 207
 208       $footer = $pdf->open_object();
 209
 210       // Draw a line along the bottom
 211       $y = $h - 25;
 212       $pdf->line(15, $y, $w - 15, $y, $color, 1);
 213
 214       $y += $text_height / 2;
 215       $pdf->page_text(15, $y, \''. addslashes(strip_tags($tpl_footer[1])) .'\', $font, $size, $color);
 216
 217       $pdf->close_object();
 218       $pdf->add_object($footer, "all");
 219
 220       // Center the text
 221       $width = Font_Metrics::get_text_width("Page 1 of 2", $font, $size);
 222       $pagenumtxt = t("Page !n of !total", array("!n" => "{PAGE_NUM}", "!total" => "{PAGE_COUNT}"));
 223       $pdf->page_text($w - 15 - $width, $y, $pagenumtxt, $font, $size, $color);
 224     }
 225   </script>';
 226
 227   return str_replace("<body>", "<body>" . $text, $html);
 228 }
 229
 230 /**
 231  * Format the TCPDF header
 232  *
 233  * @param $pdf
 234  *   current TCPDF object
 235  * @param $html
 236  *   contents of the body of the HTML from the original node
 237  * @param $font
 238  *   array with the font definition (font name, styles and size)
 239  * @see theme_print_pdf_tcpdf_header()
 240  */
 241 function theme_print_pdf_tcpdf_header(&$pdf, &$html, $font) {
 242   preg_match('!<div class="print-logo">(.*?)</div>!si', $html, $tpl_logo);
 243   preg_match('!<h1 class="print-title">(.*?)</h1>!si', $html, $tpl_title);
 244   preg_match('!<div class="print-site_name">(.*?)</div>!si', $html, $tpl_site_name);
 245
 246   $ratio = 0;
 247   $logo = '';
 248   $logo_ret = preg_match('!src\s*=\s*(\'.*?\'|".*?"|[^\s]*)!i', $tpl_logo[1], $matches);
 249   if ($logo_ret) {
 250     $logo = trim($matches[1], '\'"');
 251     $size = getimagesize($logo);
 252     $ratio = $size[0] / $size[1];
 253   }
 254
 255   // set header font
 256   $pdf->setHeaderFont($font);
 257   // set header margin
 258   $pdf->SetHeaderMargin(5);
 259   // set header data
 260   $pdf->SetHeaderData($logo, 10 * $ratio, $tpl_title[1], strip_tags($tpl_site_name[1]));
 261
 262   return $pdf;
 263 }
 264
 265 /**
 266  * Format the TCPDF page settings (margins, etc)
 267  *
 268  * @param $pdf
 269  *   current TCPDF object
 270  * @see theme_print_pdf_tcpdf_page()
 271  */
 272 function theme_print_pdf_tcpdf_page(&$pdf) {
 273   // set margins
 274   $pdf->SetMargins(15, 20, 15);
 275   // set auto page breaks
 276   $pdf->SetAutoPageBreak(TRUE, 15);
 277   // set image scale factor
 278   $pdf->setImageScale(4);
 279   // set image compression quality
 280   $pdf->setJPEGQuality(100);
 281
 282   return $pdf;
 283 }
 284
 285 /**
 286  * Format the TCPDF page content
 287  *
 288  * @param $pdf
 289  *   current TCPDF object
 290  * @param $html
 291  *   contents of the body of the HTML from the original node
 292  * @param $font
 293  *   array with the font definition (font name, styles and size)
 294  * @see theme_print_pdf_tcpdf_content()
 295  */
 296 function theme_print_pdf_tcpdf_content(&$pdf, &$html, $font) {
 297   // set content font
 298   $pdf->setFont($font[0], $font[1], $font[2]);
 299
 300   preg_match('!<body.*?>(.*)</body>!sim', $html, $matches);
 301   $pattern = '!(?:<div class="print-(?:logo|site_name|breadcrumb|footer)">.*?</div>|<hr class="print-hr" />)!si';
 302   $matches[1] = preg_replace($pattern, '', $matches[1]);
 303
 304
 305   // Since TCPDF's writeHTML is so bad with <p>, do everything possible to make it look nice
 306   $matches[1] = preg_replace('!(<p\s*/>|</p>)!i', '<br />', $matches[1]);
 307   $matches[1] = str_replace(array('<div', 'div>'), array('<span', 'span><br />'), $matches[1]);
 308
 309   $pdf->writeHTML($matches[1]);
 310
 311   return $pdf;
 312 }
 313
 314 /**
 315  * Format the TCPDF footer contents
 316  *
 317  * @param $pdf
 318  *   current TCPDF object
 319  * @param $html
 320  *   contents of the body of the HTML from the original node
 321  * @param $font
 322  *   array with the font definition (font name, styles and size)
 323  * @see theme_print_pdf_tcpdf_footer()
 324  */
 325 function theme_print_pdf_tcpdf_footer(&$pdf, &$html, $font) {
 326   preg_match('!<div class="print-footer">(.*?)</div>!si', $html, $tpl_footer);
 327   $footer = trim(preg_replace('!</?div[^>]*?>!i', '', $tpl_footer[1]));
 328
 329   // set footer font
 330   $font[2] *= 0.8;
 331   $pdf->setFooterFont($font);
 332   // set footer margin
 333   $pdf->SetFooterMargin(10);
 334   // set footer data
 335   $pdf->SetFooterData($footer);
 336
 337   return $pdf;
 338 }
 339
 340 /**
 341  * Format the TCPDF footer layout
 342  *
 343  * @param $pdf
 344  *   current TCPDF object
 345  * @see theme_print_pdf_tcpdf_footer2()
 346  */
 347 function theme_print_pdf_tcpdf_footer2(&$pdf) {
 348   //Position at 1.5 cm from bottom
 349   $pdf->writeHTMLCell(0, 15, 15, 0, $pdf->footer, 0, 0, 0, TRUE, '');
 350
 351   $ormargins = $pdf->getOriginalMargins();
 352   $pagenumtxt = t('Page !n of !total', array('!n' => $pdf->PageNo(), '!total' => $pdf->getAliasNbPages()));
 353   //Print page number
 354   if ($pdf->getRTL()) {
 355     $pdf->SetX($ormargins['right']);
 356     $pdf->Cell(0, 10, $pagenumtxt, 'T', 0, 'L');
 357   }
 358   else {
 359     $pdf->SetX($ormargins['left']);
 360     $pdf->Cell(0, 10, $pagenumtxt, 'T', 0, 'R');
 361   }
 362
 363   return $pdf;
 364 }