openoffice_text.class.php 15 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * Defines the OpenofficeDocument class, which is meant as a conversion
  5. * tool from Office text documents (.doc, .sxw, .odt, .docx) to
  6. * learning paths
  7. * @package chamilo.learnpath
  8. * @author Eric Marguin <eric.marguin@dokeos.com>
  9. * @license GNU/GPL
  10. */
  11. /**
  12. * Defines the "OpenofficeText" child of class "learnpath"
  13. */
  14. require_once 'openoffice_document.class.php';
  15. if (api_get_setting('search_enabled') == 'true') {
  16. require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php';
  17. require_once api_get_path(LIBRARY_PATH).'search/ChamiloIndexer.class.php';
  18. require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
  19. }
  20. /**
  21. * @package chamilo.learnpath.OpenofficeDocument
  22. */
  23. class OpenofficeText extends OpenofficeDocument {
  24. public $split_steps;
  25. /**
  26. * Class constructor. Calls the parent class and initialises the local attribute split_steps
  27. * @param boolean Whether to split steps (true) or make one large page (false)
  28. * @param string Course code
  29. * @param integer Resource ID
  30. * @param integer Creator user id
  31. * @return void
  32. */
  33. public function __construct($split_steps = false, $course_code = null, $resource_id = null, $user_id = null) {
  34. $this -> split_steps = $split_steps;
  35. parent::__construct($course_code, $resource_id, $user_id);
  36. }
  37. /**
  38. * Gets html pages and compose them into a learning path
  39. * @param array The files that will compose the generated learning path. Unused so far.
  40. * @return boolean False if file does not exit. Nothing otherwise.
  41. */
  42. public function make_lp($files = array())
  43. {
  44. $_course = api_get_course_info();
  45. // We get a content where ||page_break|| indicates where the page is broken.
  46. if (!file_exists($this->base_work_dir.'/'.$this->created_dir.'/'.$this->file_name.'.html')) { return false; }
  47. $content = file_get_contents($this->base_work_dir.'/'.$this->created_dir.'/'.$this->file_name.'.html');
  48. unlink($this->base_work_dir.'/'.$this->file_path);
  49. unlink($this->base_work_dir.'/'.$this->created_dir.'/'.$this->file_name.'.html');
  50. // The file is utf8 encoded and it seems to make problems with special quotes.
  51. // Then we htmlentities that, we replace these quotes and html_entity_decode that in good charset.
  52. $charset = api_get_system_encoding();
  53. $content = api_htmlentities($content, ENT_COMPAT, $this->original_charset);
  54. $content = str_replace('&rsquo;', '\'', $content);
  55. $content = api_convert_encoding($content, $charset, $this->original_charset);
  56. $content = str_replace($this->original_charset, $charset, $content);
  57. $content = api_html_entity_decode($content, ENT_COMPAT, $charset);
  58. // Set the path to pictures to absolute (so that it can be modified in fckeditor).
  59. $content = preg_replace("|src=\"([^\"]*)|i", "src=\"".api_get_path(REL_COURSE_PATH).$_course['path'].'/document'.$this->created_dir."/\\1", $content);
  60. list($header, $body) = explode('<BODY', $content);
  61. $body = '<BODY'.$body;
  62. // Remove font-family styles.
  63. $header = preg_replace("|font\-family[^;]*;|i", '', $header);
  64. // Chamilo styles.
  65. $my_style = api_get_setting('stylesheets');
  66. if (empty($my_style)) { $my_style = 'chamilo'; }
  67. $style_to_import = "<style type=\"text/css\">\r\n";
  68. $style_to_import .= '@import "'.api_get_path(WEB_CODE_PATH).'css/'.$my_style.'/default.css";'."\n";
  69. $style_to_import .= "</style>\r\n";
  70. $header = preg_replace("|</head>|i", "\r\n$style_to_import\r\n\\0", $header);
  71. // Line break before and after picture.
  72. $header = str_replace('p {', 'p {clear:both;', $header);
  73. $header = str_replace('absolute', 'relative', $header);
  74. switch ($this->split_steps) {
  75. case 'per_page':
  76. $this -> dealPerPage($header, $body);
  77. break;
  78. case 'per_chapter':
  79. $this -> dealPerChapter($header, $body);
  80. break;
  81. }
  82. }
  83. /**
  84. * Manages dir/chapter splitting
  85. * @param string Chapter header
  86. * @param string Content
  87. * @return void
  88. */
  89. public function dealPerChapter($header, $content)
  90. {
  91. $_course = api_get_course_info();
  92. $content = str_replace('||page_break||', '', $content);
  93. // Get all the h1.
  94. preg_match_all("|<h1[^>]*>([^(h1)+]*)</h1>|is", $content, $matches_temp);
  95. // Empty the fake chapters.
  96. $new_index = 0;
  97. for ($i = 0; $i < count($matches_temp[0]); $i++) {
  98. if (trim($matches_temp[1][$i]) !== '') {
  99. $matches[0][$new_index] = $matches_temp[0][$i];
  100. $matches[1][$new_index] = $matches_temp[1][$i];
  101. $new_index++;
  102. }
  103. }
  104. // Add intro item.
  105. $intro_content = substr($content, 0, strpos($content, $matches[0][0]));
  106. $items_to_create[get_lang('Introduction')] = $intro_content;
  107. for ($i = 0; $i < count($matches[0]); $i++) {
  108. if (empty($matches[1][$i]))
  109. continue;
  110. $content = strstr($content,$matches[0][$i]);
  111. if ($i + 1 !== count($matches[0])) {
  112. $dir_content = substr($content, 0, strpos($content, $matches[0][$i + 1]));
  113. } else {
  114. $dir_content = $content;
  115. }
  116. $items_to_create[$matches[1][$i]] = $dir_content;
  117. }
  118. $i = 0;
  119. foreach ($items_to_create as $item_title => $item_content) {
  120. $i++;
  121. $page_content = $this->format_page_content($header, $item_content);
  122. $html_file = $this->created_dir.'-'.$i.'.html';
  123. $handle = fopen($this->base_work_dir.$this->created_dir.'/'.$html_file, 'w+');
  124. fwrite($handle, $page_content);
  125. fclose($handle);
  126. $document_id = add_document($_course, $this->created_dir.'/'.$html_file, 'file', filesize($this->base_work_dir.$this->created_dir.'/'.$html_file), $html_file);
  127. if ($document_id){
  128. // Put the document in item_property update.
  129. api_item_property_update(
  130. $_course,
  131. TOOL_DOCUMENT,
  132. $document_id,
  133. 'DocumentAdded',
  134. $_SESSION['_uid'],
  135. 0,
  136. 0,
  137. null,
  138. null,
  139. api_get_session_id()
  140. );
  141. $infos = pathinfo($this->filepath);
  142. $slide_name = strip_tags(nl2br($item_title));
  143. $slide_name = str_replace(array("\r\n", "\r", "\n"), '', $slide_name);
  144. $slide_name = html_entity_decode($slide_name);
  145. $previous = learnpath::add_item(
  146. 0,
  147. $previous,
  148. 'document',
  149. $document_id,
  150. $slide_name,
  151. ''
  152. );
  153. if ($this->first_item == 0) {
  154. $this->first_item = $previous;
  155. }
  156. }
  157. }
  158. }
  159. /**
  160. * Manages page splitting
  161. * @param string Page header
  162. * @param string Page body
  163. * @return void
  164. */
  165. public function dealPerPage($header, $body)
  166. {
  167. $_course = api_get_course_info();
  168. // Split document to pages.
  169. $pages = explode('||page_break||', $body);
  170. $first_item = 0;
  171. foreach ($pages as $key => $page_content) {
  172. // For every pages, we create a new file.
  173. $key += 1;
  174. $page_content = $this->format_page_content($header, $page_content, $this->base_work_dir.$this->created_dir);
  175. $html_file = $this->created_dir.'-'.$key.'.html';
  176. $handle = fopen($this->base_work_dir.$this->created_dir.'/'.$html_file, 'w+');
  177. fwrite($handle, $page_content);
  178. fclose($handle);
  179. $document_id = add_document(
  180. $_course,
  181. $this->created_dir.$html_file,
  182. 'file',
  183. filesize($this->base_work_dir.$this->created_dir.$html_file),
  184. $html_file
  185. );
  186. $slide_name = '';
  187. if ($document_id) {
  188. // Put the document in item_property update.
  189. api_item_property_update(
  190. $_course,
  191. TOOL_DOCUMENT,
  192. $document_id,
  193. 'DocumentAdded',
  194. $_SESSION['_uid'],
  195. 0,
  196. 0,
  197. null,
  198. null,
  199. api_get_session_id()
  200. );
  201. $infos = pathinfo($this->filepath);
  202. $slide_name = 'Page '.str_repeat('0', 2 - strlen($key)).$key;
  203. $previous = learnpath::add_item(0, $previous, 'document', $document_id, $slide_name, '');
  204. if ($this->first_item == 0) {
  205. $this->first_item = $previous;
  206. }
  207. // Code for text indexing.
  208. if (api_get_setting('search_enabled') == 'true') {
  209. if (isset($_POST['index_document']) && $_POST['index_document']) {
  210. //Display::display_normal_message(print_r($_POST));
  211. $di = new ChamiloIndexer();
  212. isset($_POST['language']) ? $lang = Database::escape_string($_POST['language']) : $lang = 'english';
  213. $di->connectDb(NULL, NULL, $lang);
  214. $ic_slide = new IndexableChunk();
  215. $ic_slide->addValue('title', $slide_name);
  216. $specific_fields = get_specific_field_list();
  217. $all_specific_terms = '';
  218. foreach ($specific_fields as $specific_field) {
  219. if (isset($_REQUEST[$specific_field['code']])) {
  220. $sterms = trim($_REQUEST[$specific_field['code']]);
  221. $all_specific_terms .= ' '. $sterms;
  222. if (!empty($sterms)) {
  223. $sterms = explode(',', $sterms);
  224. foreach ($sterms as $sterm) {
  225. $ic_slide->addTerm(trim($sterm), $specific_field['code']);
  226. }
  227. }
  228. }
  229. }
  230. $page_content = $all_specific_terms .' '. $page_content;
  231. $ic_slide->addValue('content', $page_content);
  232. // Add a comment to say terms separated by commas.
  233. $courseid=api_get_course_id();
  234. $ic_slide->addCourseId($courseid);
  235. $ic_slide->addToolId(TOOL_LEARNPATH);
  236. $lp_id = $this->lp_id;
  237. $xapian_data = array(
  238. SE_COURSE_ID => $courseid,
  239. SE_TOOL_ID => TOOL_LEARNPATH,
  240. SE_DATA => array('lp_id' => $lp_id, 'lp_item'=> $previous, 'document_id' => $document_id),
  241. SE_USER => (int)api_get_user_id(),
  242. );
  243. $ic_slide->xapian_data = serialize($xapian_data);
  244. $di->addChunk($ic_slide);
  245. // Index and return search engine document id.
  246. $did = $di->index();
  247. if ($did) {
  248. // Save it to db.
  249. $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
  250. $sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did)
  251. VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)';
  252. $sql = sprintf($sql, $tbl_se_ref, api_get_course_id(), TOOL_LEARNPATH, $lp_id, $previous, $did);
  253. Database::query($sql);
  254. }
  255. }
  256. }
  257. }
  258. }
  259. }
  260. /**
  261. * Returns additional Java command parameters
  262. * @return string The additional parameters to be used in the Java call
  263. */
  264. public function add_command_parameters(){
  265. return ' -d woogie "'.$this->base_work_dir.'/'.$this->file_path.'" "'.$this->base_work_dir.$this->created_dir.'/'.$this->file_name.'.html"';
  266. }
  267. /**
  268. * Formats a page content by reorganising the HTML code a little
  269. * @param string Page header
  270. * @param string Page content
  271. * @return string Formatted page content
  272. */
  273. public function format_page_content($header, $content) {
  274. // Limit the width of the doc.
  275. list($max_width, $max_height) = explode('x',api_get_setting('service_ppt2lp','size'));
  276. $content = preg_replace("|<body[^>]*>|i", "\\0\r\n<div style=\"width:".$max_width."\">", $content, -1, $count);
  277. if ($count < 1) {
  278. $content = '<body><div style="width:'.$max_width.'">'.$content;
  279. }
  280. $content = preg_replace('|</body>|i', '</div>\\0', $content, -1, $count);
  281. if ($count < 1) {
  282. $content = $content.'</div></body>';
  283. }
  284. // Add the headers.
  285. $content = $header.$content;
  286. // Resize all the picture to the max_width-10
  287. preg_match_all("|<img[^src]*src=\"([^\"]*)\"[^>]*>|i", $content, $images);
  288. foreach ($images[1] as $key => $image) {
  289. // Check if the <img tag soon has a width attribute.
  290. $defined_width = preg_match("|width=([^\s]*)|i", $images[0][$key], $img_width);
  291. $img_width = $img_width[1];
  292. if (!$defined_width) {
  293. list($img_width, $img_height, $type) = getimagesize($this->base_work_dir.$this->created_dir.'/'.$image);
  294. $new_width = $max_width - 10;
  295. if ($img_width > $new_width) {
  296. $picture_resized = str_ireplace('<img', '<img width="'.$new_width.'" ', $images[0][$key]);
  297. $content = str_replace($images[0][$key], $picture_resized, $content);
  298. }
  299. } elseif ($img_width > $max_width - 10) {
  300. $picture_resized = str_ireplace('width='.$img_width, 'width="'.($max_width-10).'"', $images[0][$key]);
  301. $content = str_replace($images[0][$key], $picture_resized, $content);
  302. }
  303. }
  304. return $content;
  305. }
  306. /**
  307. * Add documents to the visioconference (to be implemented)
  308. */
  309. public function add_docs_to_visio() {
  310. }
  311. }