CRM/Utils/PDF/Utils.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.6                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2014                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26  */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2014
  32  * $Id$
  33  *
  34  */
  35 class CRM_Utils_PDF_Utils {
  36
  37   /**
  38    * @param $text
  39    * @param string $fileName
  40    * @param bool $output
  41    * @param null $pdfFormat
  42    *
  43    * @return string|void
  44    */
  45   public static function html2pdf(&$text, $fileName = 'civicrm.pdf', $output = FALSE, $pdfFormat = NULL) {
  46     if (is_array($text)) {
  47       $pages = &$text;
  48     }
  49     else {
  50       $pages = array($text);
  51     }
  52     // Get PDF Page Format
  53     $format = CRM_Core_BAO_PdfFormat::getDefaultValues();
  54     if (is_array($pdfFormat)) {
  55       // PDF Page Format parameters passed in
  56       $format = array_merge($format, $pdfFormat);
  57     }
  58     else {
  59       // PDF Page Format ID passed in
  60       $format = CRM_Core_BAO_PdfFormat::getById($pdfFormat);
  61     }
  62     $paperSize = CRM_Core_BAO_PaperSize::getByName($format['paper_size']);
  63     $paper_width = self::convertMetric($paperSize['width'], $paperSize['metric'], 'pt');
  64     $paper_height = self::convertMetric($paperSize['height'], $paperSize['metric'], 'pt');
  65     // dompdf requires dimensions in points
  66     $paper_size = array(0, 0, $paper_width, $paper_height);
  67     $orientation = CRM_Core_BAO_PdfFormat::getValue('orientation', $format);
  68     $metric = CRM_Core_BAO_PdfFormat::getValue('metric', $format);
  69     $t = CRM_Core_BAO_PdfFormat::getValue('margin_top', $format);
  70     $r = CRM_Core_BAO_PdfFormat::getValue('margin_right', $format);
  71     $b = CRM_Core_BAO_PdfFormat::getValue('margin_bottom', $format);
  72     $l = CRM_Core_BAO_PdfFormat::getValue('margin_left', $format);
  73
  74     $stationery_path_partial = CRM_Core_BAO_PdfFormat::getValue('stationery', $format);
  75
  76     $stationery_path = NULL;
  77     if (strlen($stationery_path_partial)) {
  78       $doc_root = $_SERVER['DOCUMENT_ROOT'];
  79       $stationery_path = $doc_root . "/" . $stationery_path_partial;
  80     }
  81
  82     $margins = array($metric, $t, $r, $b, $l);
  83
  84     $config = CRM_Core_Config::singleton();
  85     $html = "
  86 <html>
  87   <head>
  88     <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
  89     <style>@page { margin: {$t}{$metric} {$r}{$metric} {$b}{$metric} {$l}{$metric}; }</style>
  90     <style type=\"text/css\">@import url({$config->userFrameworkResourceURL}css/print.css);</style>
  91   </head>
  92   <body>
  93     <div id=\"crm-container\">\n";
  94
  95     // Strip <html>, <header>, and <body> tags from each page
  96     $htmlElementstoStrip = array(
  97       '@<head[^>]*?>.*?</head>@siu',
  98       '@<script[^>]*?>.*?</script>@siu',
  99       '@<body>@siu',
 100       '@</body>@siu',
 101       '@<html[^>]*?>@siu',
 102       '@</html>@siu',
 103       '@<!DOCTYPE[^>]*?>@siu',
 104     );
 105     $htmlElementsInstead = array('', '', '', '', '', '');
 106     foreach ($pages as & $page) {
 107       $page = preg_replace($htmlElementstoStrip,
 108         $htmlElementsInstead,
 109         $page
 110       );
 111     }
 112     // Glue the pages together
 113     $html .= implode("\n<div style=\"page-break-after: always\"></div>\n", $pages);
 114     $html .= "
 115     </div>
 116   </body>
 117 </html>";
 118     if ($config->wkhtmltopdfPath) {
 119       return self::_html2pdf_wkhtmltopdf($paper_size, $orientation, $margins, $html, $output, $fileName);
 120     }
 121     else {
 122       return self::_html2pdf_dompdf($paper_size, $orientation, $html, $output, $fileName);
 123       //return self::_html2pdf_tcpdf($paper_size, $orientation, $margins, $html, $output, $fileName,  $stationery_path);
 124     }
 125   }
 126
 127   public static function _html2pdf_tcpdf($paper_size, $orientation, $margins, $html, $output, $fileName, $stationery_path) {
 128     // Documentation on the TCPDF library can be found at: http://www.tcpdf.org
 129     // This function also uses the FPDI library documented at: http://www.setasign.com/products/fpdi/about/
 130     // Syntax borrowed from https://github.com/jake-mw/CDNTaxReceipts/blob/master/cdntaxreceipts.functions.inc
 131     require_once 'tcpdf/tcpdf.php';
 132     require_once 'FPDI/fpdi.php'; // This library is only in the 'packages' area as of version 4.5
 133
 134     $paper_size_arr = array($paper_size[2], $paper_size[3]);
 135
 136     $pdf = new TCPDF($orientation, 'pt', $paper_size_arr);
 137     $pdf->Open();
 138
 139     if (is_readable($stationery_path)) {
 140       $pdf->SetStationery($stationery_path);
 141     }
 142
 143     $pdf->SetAuthor('');
 144     $pdf->SetKeywords('CiviCRM.org');
 145     $pdf->setPageUnit($margins[0]);
 146     $pdf->SetMargins($margins[4], $margins[1], $margins[2], TRUE);
 147
 148     $pdf->setJPEGQuality('100');
 149     $pdf->SetAutoPageBreak(TRUE, $margins[3]);
 150
 151     $pdf->AddPage();
 152
 153     $ln = TRUE;
 154     $fill = FALSE;
 155     $reset_parm = FALSE;
 156     $cell = FALSE;
 157     $align = '';
 158
 159     // output the HTML content
 160     $pdf->writeHTML($html, $ln, $fill, $reset_parm, $cell, $align);
 161
 162     // reset pointer to the last page
 163     $pdf->lastPage();
 164
 165     // close and output the PDF
 166     $pdf->Close();
 167     $pdf_file = 'CiviLetter' . '.pdf';
 168     $pdf->Output($pdf_file, 'D');
 169     CRM_Utils_System::civiExit(1);
 170   }
 171
 172   /**
 173    * @param $paper_size
 174    * @param $orientation
 175    * @param $html
 176    * @param $output
 177    * @param string $fileName
 178    *
 179    * @return string
 180    */
 181   public static function _html2pdf_dompdf($paper_size, $orientation, $html, $output, $fileName) {
 182     require_once 'packages/dompdf/dompdf_config.inc.php';
 183     spl_autoload_register('DOMPDF_autoload');
 184     $dompdf = new DOMPDF();
 185     $dompdf->set_paper($paper_size, $orientation);
 186     $dompdf->load_html($html);
 187     $dompdf->render();
 188
 189     if ($output) {
 190       return $dompdf->output();
 191     }
 192     else {
 193       $dompdf->stream($fileName);
 194     }
 195   }
 196
 197   /**
 198    * @param $paper_size
 199    * @param $orientation
 200    * @param $margins
 201    * @param $html
 202    * @param $output
 203    * @param string $fileName
 204    */
 205   public static function _html2pdf_wkhtmltopdf($paper_size, $orientation, $margins, $html, $output, $fileName) {
 206     require_once 'packages/snappy/src/autoload.php';
 207     $config = CRM_Core_Config::singleton();
 208     $snappy = new Knp\Snappy\Pdf($config->wkhtmltopdfPath);
 209     $snappy->setOption("page-width", $paper_size[2] . "pt");
 210     $snappy->setOption("page-height", $paper_size[3] . "pt");
 211     $snappy->setOption("orientation", $orientation);
 212     $snappy->setOption("margin-top", $margins[1] . $margins[0]);
 213     $snappy->setOption("margin-right", $margins[2] . $margins[0]);
 214     $snappy->setOption("margin-bottom", $margins[3] . $margins[0]);
 215     $snappy->setOption("margin-left", $margins[4] . $margins[0]);
 216     $pdf = $snappy->getOutputFromHtml($html);
 217     if ($output) {
 218       return $pdf;
 219     }
 220     else {
 221       header('Content-Type: application/pdf');
 222       header('Content-Disposition: attachment; filename="' . $fileName . '"');
 223       echo $pdf;
 224     }
 225   }
 226
 227   /**
 228    * convert value from one metric to another
 229    *
 230    * @param $value
 231    * @param $from
 232    * @param $to
 233    * @param null $precision
 234    *
 235    * @return float|int
 236    */
 237   public static function convertMetric($value, $from, $to, $precision = NULL) {
 238     switch ($from . $to) {
 239       case 'incm':
 240         $value *= 2.54;
 241         break;
 242
 243       case 'inmm':
 244         $value *= 25.4;
 245         break;
 246
 247       case 'inpt':
 248         $value *= 72;
 249         break;
 250
 251       case 'cmin':
 252         $value /= 2.54;
 253         break;
 254
 255       case 'cmmm':
 256         $value *= 10;
 257         break;
 258
 259       case 'cmpt':
 260         $value *= 72 / 2.54;
 261         break;
 262
 263       case 'mmin':
 264         $value /= 25.4;
 265         break;
 266
 267       case 'mmcm':
 268         $value /= 10;
 269         break;
 270
 271       case 'mmpt':
 272         $value *= 72 / 25.4;
 273         break;
 274
 275       case 'ptin':
 276         $value /= 72;
 277         break;
 278
 279       case 'ptcm':
 280         $value *= 2.54 / 72;
 281         break;
 282
 283       case 'ptmm':
 284         $value *= 25.4 / 72;
 285         break;
 286     }
 287     if (!is_null($precision)) {
 288       $value = round($value, $precision);
 289     }
 290     return $value;
 291   }
 292
 293   /**
 294    * @param string $fileName
 295    * @param $searchPath
 296    * @param $values
 297    * @param int $numPages
 298    * @param bool $echo
 299    * @param string $output
 300    * @param string $creator
 301    * @param string $author
 302    * @param string $title
 303    */
 304   public static function &pdflib(
 305     $fileName,
 306     $searchPath,
 307     &$values,
 308     $numPages = 1,
 309     $echo = TRUE,
 310     $output = 'College_Match_App',
 311     $creator = 'CiviCRM',
 312     $author = 'http://www.civicrm.org/',
 313     $title = '2006 College Match Scholarship Application'
 314   ) {
 315     try {
 316       $pdf = new PDFlib();
 317       $pdf->set_parameter("compatibility", "1.6");
 318       $pdf->set_parameter("licensefile", "/home/paras/bin/license/pdflib.txt");
 319
 320       if ($pdf->begin_document('', '') == 0) {
 321         CRM_Core_Error::statusBounce("PDFlib Error: " . $pdf->get_errmsg());
 322       }
 323
 324       $config = CRM_Core_Config::singleton();
 325       $pdf->set_parameter('resourcefile', $config->templateDir . '/Quest/pdf/pdflib.upr');
 326       $pdf->set_parameter('textformat', 'utf8');
 327
 328       /* Set the search path for fonts and PDF files */
 329
 330       $pdf->set_parameter('SearchPath', $searchPath);
 331
 332       /* This line is required to avoid problems on Japanese systems */
 333
 334       $pdf->set_parameter('hypertextencoding', 'winansi');
 335
 336       $pdf->set_info('Creator', $creator);
 337       $pdf->set_info('Author', $author);
 338       $pdf->set_info('Title', $title);
 339
 340       $blockContainer = $pdf->open_pdi($fileName, '', 0);
 341       if ($blockContainer == 0) {
 342         CRM_Core_Error::statusBounce('PDFlib Error: ' . $pdf->get_errmsg());
 343       }
 344
 345       for ($i = 1; $i <= $numPages; $i++) {
 346         $page = $pdf->open_pdi_page($blockContainer, $i, '');
 347         if ($page == 0) {
 348           CRM_Core_Error::statusBounce('PDFlib Error: ' . $pdf->get_errmsg());
 349         }
 350
 351         /* dummy page size */
 352         $pdf->begin_page_ext(20, 20, '');
 353
 354         /* This will adjust the page size to the block container's size. */
 355
 356         $pdf->fit_pdi_page($page, 0, 0, 'adjustpage');
 357
 358         $status = array();
 359         /* Fill all text blocks with dynamic data */
 360
 361         foreach ($values as $key => $value) {
 362           if (is_array($value)) {
 363             continue;
 364           }
 365
 366           // pdflib does like the forward slash character, hence convert
 367           $value = str_replace('/', '_', $value);
 368
 369           $res = $pdf->fill_textblock($page,
 370             $key,
 371             $value,
 372             'embedding encoding=winansi'
 373           );
 374
 375         }
 376
 377         $pdf->end_page_ext('');
 378         $pdf->close_pdi_page($page);
 379       }
 380
 381       $pdf->end_document('');
 382       $pdf->close_pdi($blockContainer);
 383
 384       $buf = $pdf->get_buffer();
 385       $len = strlen($buf);
 386
 387       if ($echo) {
 388         header('Content-type: application/pdf');
 389         header("Content-Length: $len");
 390         header("Content-Disposition: inline; filename={$output}.pdf");
 391         echo $buf;
 392         CRM_Utils_System::civiExit();
 393       }
 394       else {
 395         return $buf;
 396       }
 397     }
 398     catch (PDFlibException$excp) {
 399       CRM_Core_Error::statusBounce('PDFlib Error: Exception' .
 400         "[" . $excp->get_errnum() . "] " . $excp->get_apiname() . ": " .
 401         $excp->get_errmsg()
 402       );
 403     }
 404     catch (Exception$excp) {
 405       CRM_Core_Error::statusBounce("PDFlib Error: " . $excp->get_errmsg());
 406     }
 407   }
 408
 409 }