ILIAS  release_5-4 Revision v5.4.26-12-gabc799a52e6
class.ilTestPDFGenerator.php
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1 <?php
2 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
3 
4 require_once './Services/PDFGeneration/classes/factory/class.ilHtmlToPdfTransformerFactory.php';
5 require_once './Services/PDFGeneration/classes/class.ilPDFGeneratorUtils.php';
6 
16 class ilTestPDFGenerator
17 {
18  const PDF_OUTPUT_DOWNLOAD = 'D';
19  const PDF_OUTPUT_INLINE = 'I';
20  const PDF_OUTPUT_FILE = 'F';
21 
22  const service = "Test";
23 
24  private static function buildHtmlDocument($contentHtml, $styleHtml)
25  {
26  return "
27  <html>
28  <head>
29  <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
30  $styleHtml
31  </head>
32  <body>$contentHtml</body>
33  </html>
34  ";
35  }
36 
41  private static function makeHtmlDocument($contentHtml, $styleHtml)
42  {
43  if (!is_string($contentHtml) || !strlen(trim($contentHtml))) {
44  return $contentHtml;
45  }
46 
47  $html = self::buildHtmlDocument($contentHtml, $styleHtml);
48 
49  $dom = new DOMDocument("1.0", "utf-8");
50  if (!@$dom->loadHTML($html)) {
51  return $html;
52  }
53 
54  $invalid_elements = array();
55 
56  $script_elements = $dom->getElementsByTagName('script');
57  foreach ($script_elements as $elm) {
58  $invalid_elements[] = $elm;
59  }
60 
61  foreach ($invalid_elements as $elm) {
62  $elm->parentNode->removeChild($elm);
63  }
64 
65  // remove noprint elems as tcpdf will make empty pdf when hidden by css rules
66  $domX = new DomXPath($dom);
67  foreach ($domX->query("//*[contains(@class, 'noprint')]") as $node) {
68  $node->parentNode->removeChild($node);
69  }
70 
71  $dom->encoding = 'UTF-8';
72 
73  $img_src_map = array();
74  foreach ($dom->getElementsByTagName('img') as $elm) {
76  $uid = 'img_src_' . uniqid();
77  $src = $elm->getAttribute('src');
78 
79  $elm->setAttribute('src', $uid);
80 
81  $img_src_map[$uid] = $src;
82  }
83 
84  $cleaned_html = $dom->saveHTML();
85 
86  foreach ($img_src_map as $uid => $src) {
87  $cleaned_html = str_replace($uid, $src, $cleaned_html);
88  }
89 
90  if (!$cleaned_html) {
91  return $html;
92  }
93 
94  return $cleaned_html;
95  }
96 
97  public static function generatePDF($pdf_output, $output_mode, $filename = null, $purpose = null)
98  {
99  $pdf_output = self::preprocessHTML($pdf_output);
100 
101  if (substr($filename, strlen($filename) - 4, 4) != '.pdf') {
102  $filename .= '.pdf';
103  }
104  $pdf_factory = new ilHtmlToPdfTransformerFactory();
105  return $pdf_factory->deliverPDFFromHTMLString($pdf_output, $filename, $output_mode, self::service, $purpose);
106  }
107 
108  public static function preprocessHTML($html)
109  {
110  $html = self::makeHtmlDocument($html, '<style>' . self::getCssContent() . '</style>');
111 
112  return $html;
113  }
114 
115  protected static function getTemplatePath($a_filename, $module_path = 'Modules/Test/')
116  {
117  // use ilStyleDefinition instead of account to get the current skin
118  include_once "Services/Style/System/classes/class.ilStyleDefinition.php";
119  if (ilStyleDefinition::getCurrentSkin() != "default") {
120  $fname = "./Customizing/global/skin/" .
121  ilStyleDefinition::getCurrentSkin() . "/" . $module_path . basename($a_filename);
122  }
123 
124  if ($fname == "" || !file_exists($fname)) {
125  $fname = "./" . $module_path . "templates/default/" . basename($a_filename);
126  }
127  return $fname;
128  }
129 
130  protected static function getCssContent()
131  {
132  $cssContent = file_get_contents(self::getTemplatePath('delos.css', ''));
133  $cssContent .= file_get_contents(self::getTemplatePath('test_pdf.css'));
134 
135  return $cssContent;
136  }
137 }
ilTestPDFGenerator
Class ilTestPDFGenerator.
Definition: class.ilTestPDFGenerator.php:16
ilTestPDFGenerator\buildHtmlDocument
static buildHtmlDocument($contentHtml, $styleHtml)
Definition: class.ilTestPDFGenerator.php:24
ilStyleDefinition\getCurrentSkin
static getCurrentSkin()
get the current skin
Definition: class.ilStyleDefinition.php:111
ilHtmlToPdfTransformerFactory
Class ilHtmlToPdfTransformerFactory.
Definition: class.ilHtmlToPdfTransformerFactory.php:10
$filename
$filename
Definition: buildRTE.php:89
ilTestPDFGenerator\generatePDF
static generatePDF($pdf_output, $output_mode, $filename=null, $purpose=null)
Definition: class.ilTestPDFGenerator.php:97
$html
$html
Definition: example_001.php:87
ilTestPDFGenerator\getTemplatePath
static getTemplatePath($a_filename, $module_path='Modules/Test/')
Definition: class.ilTestPDFGenerator.php:115