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360 lines
14 KiB
360 lines
14 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Defines the OpenofficeDocument class, which is meant as a conversion
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* tool from Office text documents (.doc, .sxw, .odt, .docx) to
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* learning paths
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* @package chamilo.learnpath
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* @author Eric Marguin <eric.marguin@dokeos.com>
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* @license GNU/GPL
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*/
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/**
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* Defines the "OpenofficeText" child of class "learnpath"
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*/
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require_once 'openoffice_document.class.php';
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if (api_get_setting('search_enabled') == 'true') {
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require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php';
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require_once api_get_path(LIBRARY_PATH).'search/ChamiloIndexer.class.php';
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require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
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}
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/**
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* @package chamilo.learnpath.OpenofficeDocument
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*/
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class OpenofficeText extends OpenofficeDocument {
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public $split_steps;
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/**
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* Class constructor. Calls the parent class and initialises the local attribute split_steps
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* @param boolean Whether to split steps (true) or make one large page (false)
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* @param string Course code
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* @param integer Resource ID
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* @param integer Creator user id
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* @return void
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*/
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function OpenofficeText($split_steps = false, $course_code = null, $resource_id = null, $user_id = null) {
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$this -> split_steps = $split_steps;
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parent::__construct($course_code, $resource_id, $user_id);
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}
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/**
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* Gets html pages and compose them into a learning path
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* @param array The files that will compose the generated learning path. Unused so far.
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* @return boolean False if file does not exit. Nothing otherwise.
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*/
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function make_lp($files = array())
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{
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$_course = api_get_course_info();
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// We get a content where ||page_break|| indicates where the page is broken.
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if (!file_exists($this->base_work_dir.'/'.$this->created_dir.'/'.$this->file_name.'.html')) { return false; }
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$content = file_get_contents($this->base_work_dir.'/'.$this->created_dir.'/'.$this->file_name.'.html');
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unlink($this->base_work_dir.'/'.$this->file_path);
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unlink($this->base_work_dir.'/'.$this->created_dir.'/'.$this->file_name.'.html');
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// The file is utf8 encoded and it seems to make problems with special quotes.
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// Then we htmlentities that, we replace these quotes and html_entity_decode that in good charset.
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$charset = api_get_system_encoding();
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$content = api_htmlentities($content, ENT_COMPAT, $this->original_charset);
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$content = str_replace('’', '\'', $content);
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$content = api_convert_encoding($content, $charset, $this->original_charset);
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$content = str_replace($this->original_charset, $charset, $content);
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$content = api_html_entity_decode($content, ENT_COMPAT, $charset);
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// Set the path to pictures to absolute (so that it can be modified in fckeditor).
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$content = preg_replace("|src=\"([^\"]*)|i", "src=\"".api_get_path(REL_COURSE_PATH).$_course['path'].'/document'.$this->created_dir."/\\1", $content);
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list($header, $body) = explode('<BODY', $content);
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$body = '<BODY'.$body;
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// Remove font-family styles.
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$header = preg_replace("|font\-family[^;]*;|i", '', $header);
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// Chamilo styles.
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$my_style = api_get_setting('stylesheets');
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if (empty($my_style)) { $my_style = 'chamilo'; }
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$style_to_import = "<style type=\"text/css\">\r\n";
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$style_to_import .= '@import "'.api_get_path(WEB_CODE_PATH).'css/'.$my_style.'/default.css";'."\n";
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$style_to_import .= "</style>\r\n";
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$header = preg_replace("|</head>|i", "\r\n$style_to_import\r\n\\0", $header);
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// Line break before and after picture.
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$header = str_replace('p {', 'p {clear:both;', $header);
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$header = str_replace('absolute', 'relative', $header);
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switch ($this->split_steps) {
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case 'per_page': $this -> dealPerPage($header, $body); break;
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case 'per_chapter': $this -> dealPerChapter($header, $body); break;
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}
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}
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/**
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* Manages chapter splitting
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* @param string Chapter header
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* @param string Content
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* @return void
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*/
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function dealPerChapter($header, $content)
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{
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$_course = api_get_course_info();
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$content = str_replace('||page_break||', '', $content);
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// Get all the h1.
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preg_match_all("|<h1[^>]*>([^(h1)+]*)</h1>|is", $content, $matches_temp);
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// Empty the fake chapters.
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$new_index = 0;
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for ($i = 0; $i < count($matches_temp[0]); $i++) {
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if (trim($matches_temp[1][$i]) !== '') {
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$matches[0][$new_index] = $matches_temp[0][$i];
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$matches[1][$new_index] = $matches_temp[1][$i];
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$new_index++;
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}
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}
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// Add intro item.
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$intro_content = substr($content, 0, strpos($content, $matches[0][0]));
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$items_to_create[get_lang('Introduction')] = $intro_content;
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for ($i = 0; $i < count($matches[0]); $i++) {
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if (empty($matches[1][$i]))
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continue;
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$content = strstr($content,$matches[0][$i]);
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if ($i + 1 !== count($matches[0])) {
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$chapter_content = substr($content, 0, strpos($content, $matches[0][$i + 1]));
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} else {
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$chapter_content = $content;
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}
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$items_to_create[$matches[1][$i]] = $chapter_content;
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}
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$i = 0;
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foreach ($items_to_create as $item_title => $item_content) {
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$i++;
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$page_content = $this->format_page_content($header, $item_content);
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$html_file = $this->created_dir.'-'.$i.'.html';
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$handle = fopen($this->base_work_dir.$this->created_dir.'/'.$html_file, 'w+');
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fwrite($handle, $page_content);
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fclose($handle);
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$document_id = add_document($_course, $this->created_dir.'/'.$html_file, 'file', filesize($this->base_work_dir.$this->created_dir.'/'.$html_file), $html_file);
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if ($document_id){
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// Put the document in item_property update.
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api_item_property_update(
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$_course,
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TOOL_DOCUMENT,
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$document_id,
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'DocumentAdded',
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$_SESSION['_uid'],
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0,
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0,
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null,
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null,
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api_get_session_id()
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);
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$infos = pathinfo($this->filepath);
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$slide_name = strip_tags(nl2br($item_title));
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$slide_name = str_replace(array("\r\n", "\r", "\n"), '', $slide_name);
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$slide_name = html_entity_decode($slide_name);
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$previous = learnpath::add_item(
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0,
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$previous,
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'document',
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$document_id,
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$slide_name,
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''
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);
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if ($this->first_item == 0) {
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$this->first_item = $previous;
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}
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}
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}
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}
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/**
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* Manages page splitting
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* @param string Page header
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* @param string Page body
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* @return void
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*/
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function dealPerPage($header, $body)
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{
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$_course = api_get_course_info();
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// Split document to pages.
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$pages = explode('||page_break||', $body);
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$first_item = 0;
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foreach ($pages as $key => $page_content) {
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// For every pages, we create a new file.
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$key += 1;
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$page_content = $this->format_page_content($header, $page_content, $this->base_work_dir.$this->created_dir);
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$html_file = $this->created_dir.'-'.$key.'.html';
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$handle = fopen($this->base_work_dir.$this->created_dir.'/'.$html_file, 'w+');
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fwrite($handle, $page_content);
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fclose($handle);
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$document_id = add_document(
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$_course,
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$this->created_dir.$html_file,
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'file',
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filesize($this->base_work_dir.$this->created_dir.$html_file),
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$html_file
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);
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$slide_name = '';
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if ($document_id) {
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// Put the document in item_property update.
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api_item_property_update(
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$_course,
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TOOL_DOCUMENT,
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$document_id,
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'DocumentAdded',
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$_SESSION['_uid'],
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0,
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0,
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null,
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null,
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api_get_session_id()
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);
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$infos = pathinfo($this->filepath);
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$slide_name = 'Page '.str_repeat('0', 2 - strlen($key)).$key;
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$previous = learnpath::add_item(0, $previous, 'document', $document_id, $slide_name, '');
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if ($this->first_item == 0) {
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$this->first_item = $previous;
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}
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// Code for text indexing.
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if (api_get_setting('search_enabled') == 'true') {
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if (isset($_POST['index_document']) && $_POST['index_document']) {
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//Display::display_normal_message(print_r($_POST));
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$di = new ChamiloIndexer();
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isset($_POST['language']) ? $lang = Database::escape_string($_POST['language']) : $lang = 'english';
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$di->connectDb(NULL, NULL, $lang);
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$ic_slide = new IndexableChunk();
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$ic_slide->addValue('title', $slide_name);
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$specific_fields = get_specific_field_list();
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$all_specific_terms = '';
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foreach ($specific_fields as $specific_field) {
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if (isset($_REQUEST[$specific_field['code']])) {
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$sterms = trim($_REQUEST[$specific_field['code']]);
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$all_specific_terms .= ' '. $sterms;
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if (!empty($sterms)) {
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$sterms = explode(',', $sterms);
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foreach ($sterms as $sterm) {
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$ic_slide->addTerm(trim($sterm), $specific_field['code']);
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}
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}
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}
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}
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$page_content = $all_specific_terms .' '. $page_content;
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$ic_slide->addValue('content', $page_content);
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// Add a comment to say terms separated by commas.
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$courseid=api_get_course_id();
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$ic_slide->addCourseId($courseid);
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$ic_slide->addToolId(TOOL_LEARNPATH);
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$lp_id = $this->lp_id;
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$xapian_data = array(
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SE_COURSE_ID => $courseid,
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SE_TOOL_ID => TOOL_LEARNPATH,
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SE_DATA => array('lp_id' => $lp_id, 'lp_item'=> $previous, 'document_id' => $document_id),
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SE_USER => (int)api_get_user_id(),
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);
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$ic_slide->xapian_data = serialize($xapian_data);
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$di->addChunk($ic_slide);
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// Index and return search engine document id.
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$did = $di->index();
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if ($did) {
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// Save it to db.
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did)
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VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)';
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$sql = sprintf($sql, $tbl_se_ref, api_get_course_id(), TOOL_LEARNPATH, $lp_id, $previous, $did);
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Database::query($sql);
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}
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}
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}
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}
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}
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}
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/**
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* Returns additional Java command parameters
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* @return string The additional parameters to be used in the Java call
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*/
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function add_command_parameters(){
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return ' -d woogie "'.$this->base_work_dir.'/'.$this->file_path.'" "'.$this->base_work_dir.$this->created_dir.'/'.$this->file_name.'.html"';
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}
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/**
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* Formats a page content by reorganising the HTML code a little
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* @param string Page header
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* @param string Page content
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* @return string Formatted page content
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*/
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function format_page_content($header, $content) {
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// Limit the width of the doc.
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list($max_width, $max_height) = explode('x',api_get_setting('service_ppt2lp','size'));
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$content = preg_replace("|<body[^>]*>|i", "\\0\r\n<div style=\"width:".$max_width."\">", $content, -1, $count);
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if ($count < 1) {
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$content = '<body><div style="width:'.$max_width.'">'.$content;
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}
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$content = preg_replace('|</body>|i', '</div>\\0', $content, -1, $count);
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if ($count < 1) {
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$content = $content.'</div></body>';
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}
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// Add the headers.
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$content = $header.$content;
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// Resize all the picture to the max_width-10
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preg_match_all("|<img[^src]*src=\"([^\"]*)\"[^>]*>|i", $content, $images);
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foreach ($images[1] as $key => $image) {
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// Check if the <img tag soon has a width attribute.
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$defined_width = preg_match("|width=([^\s]*)|i", $images[0][$key], $img_width);
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$img_width = $img_width[1];
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if (!$defined_width) {
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list($img_width, $img_height, $type) = getimagesize($this->base_work_dir.$this->created_dir.'/'.$image);
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$new_width = $max_width - 10;
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if ($img_width > $new_width) {
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$picture_resized = str_ireplace('<img', '<img width="'.$new_width.'" ', $images[0][$key]);
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$content = str_replace($images[0][$key], $picture_resized, $content);
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}
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} elseif ($img_width > $max_width - 10) {
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$picture_resized = str_ireplace('width='.$img_width, 'width="'.($max_width-10).'"', $images[0][$key]);
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$content = str_replace($images[0][$key], $picture_resized, $content);
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}
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}
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return $content;
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}
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/**
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* Add documents to the visioconference (to be implemented)
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*/
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function add_docs_to_visio() {
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}
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}
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