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613 lines
19 KiB
613 lines
19 KiB
<?php
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/*
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* FCKeditor - The text editor for Internet - http://www.fckeditor.net
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* Copyright (C) 2003-2009 Frederico Caldeira Knabben
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*
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* == BEGIN LICENSE ==
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*
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* Licensed under the terms of any of the following licenses at your
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* choice:
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*
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* - GNU General Public License Version 2 or later (the "GPL")
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* http://www.gnu.org/licenses/gpl.html
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*
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* - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
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* http://www.gnu.org/licenses/lgpl.html
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*
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* - Mozilla Public License Version 1.1 or later (the "MPL")
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* http://www.mozilla.org/MPL/MPL-1.1.html
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*
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* == END LICENSE ==
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*
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* This is the integration file for PHP 5.
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*
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* It defines the FCKeditor class that can be used to create editor
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* instances in PHP pages on server side.
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*/
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// Code to adapt the editor to the Dokeos LMS has been added by the Dokeos team, FEB-2009.
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/**
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* Check if browser is compatible with FCKeditor.
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* Return true if is compatible.
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*
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* @return boolean
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*/
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function FCKeditor_IsCompatibleBrowser()
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{
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if ( isset( $_SERVER ) ) {
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$sAgent = $_SERVER['HTTP_USER_AGENT'] ;
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}
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else {
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global $HTTP_SERVER_VARS ;
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if ( isset( $HTTP_SERVER_VARS ) ) {
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$sAgent = $HTTP_SERVER_VARS['HTTP_USER_AGENT'] ;
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}
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else {
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global $HTTP_USER_AGENT ;
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$sAgent = $HTTP_USER_AGENT ;
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}
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}
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if ( strpos($sAgent, 'MSIE') !== false && strpos($sAgent, 'mac') === false && strpos($sAgent, 'Opera') === false )
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{
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$iVersion = (float)substr($sAgent, strpos($sAgent, 'MSIE') + 5, 3) ;
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return ($iVersion >= 5.5) ;
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}
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else if ( strpos($sAgent, 'Gecko/') !== false )
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{
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$iVersion = (int)substr($sAgent, strpos($sAgent, 'Gecko/') + 6, 8) ;
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return ($iVersion >= 20030210) ;
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}
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else if ( strpos($sAgent, 'Opera/') !== false )
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{
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$fVersion = (float)substr($sAgent, strpos($sAgent, 'Opera/') + 6, 4) ;
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return ($fVersion >= 9.5) ;
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}
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else if ( preg_match( "|AppleWebKit/(\d+)|i", $sAgent, $matches ) )
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{
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$iVersion = $matches[1] ;
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return ( $matches[1] >= 522 ) ;
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}
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else
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return false ;
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}
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class FCKeditor
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{
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/**
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* Name of the FCKeditor instance.
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*
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* @access protected
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* @var string
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*/
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public $InstanceName ;
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/**
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* Path to FCKeditor relative to the document root.
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*
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* @var string
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*/
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public $BasePath ;
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/**
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* Width of the FCKeditor.
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* Examples: 100%, 600
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*
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* @var mixed
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*/
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public $Width ;
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/**
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* Height of the FCKeditor.
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* Examples: 400, 50%
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*
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* @var mixed
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*/
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public $Height ;
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/**
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* Name of the toolbar to load.
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*
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* @var string
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*/
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public $ToolbarSet ;
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/**
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* Initial value.
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*
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* @var string
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*/
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public $Value ;
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/**
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* This is where additional configuration can be passed.
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* Example:
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* $oFCKeditor->Config['EnterMode'] = 'br';
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*
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* @var array
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*/
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public $Config ;
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/**
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* Main Constructor.
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* Refer to the _samples/php directory for examples.
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*
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* @param string $instanceName
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*/
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public function __construct( $instanceName )
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{
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$this->InstanceName = $instanceName ;
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$this->BasePath = '/fckeditor/' ;
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$this->Width = '100%' ;
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$this->Height = '200' ;
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$this->ToolbarSet = 'Default' ;
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$this->Value = '' ;
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$this->Config = array() ;
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}
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/**
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* Display FCKeditor.
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*
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*/
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public function Create()
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{
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echo $this->CreateHtml() ;
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}
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/**
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* Return the HTML code required to run FCKeditor.
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*
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* @return string
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*/
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public function CreateHtml()
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{
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/*
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* Adaptation for the Dokeos LMS.
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*/
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// Default configuration settings will be calculated when the editor
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// is (still) created directly, without using the formvalidator module.
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// These default settings might not cover all possible cases.
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global $language_interface;
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$this->BasePath = api_get_path(REL_PATH).'main/inc/lib/fckeditor/';
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@ $editor_lang = Database :: get_language_isocode($language_interface);
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// Making a compatible code in order it to be accepted by the editor.
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$editor_lang = strtolower(str_replace('_', '-', $editor_lang));
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if (empty ($editor_lang))
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{
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$editor_lang = 'en';
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}
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// Checking for availability of a corresponding language file.
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$language_file = api_get_path(SYS_PATH).'main/inc/lib/fckeditor/editor/lang/'.$editor_lang.'.js';
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if (!file_exists($language_file))
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{
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// If there was no language file, use the english one.
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$editor_lang = 'en';
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}
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$this->Config['DefaultLanguage'] = $editor_lang;
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// css should be dokeos ones
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$this->Config['EditorAreaCSS'] = $this->Config['ToolbarComboPreviewCSS'] = api_get_path(REL_PATH).'main/css/'.api_get_setting('stylesheets').'/default.css';
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// we should set the $fck_attribute['ToolbarStartExpanded']= false to hide the toolbar by default we show the toolbar
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if (is_string($this->Config['ToolbarStartExpanded']))
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{
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$this->Config['ToolbarStartExpanded'] = (empty($this->Config['ToolbarStartExpanded']) || $this->Config['ToolbarStartExpanded'] == 'false') ? false : true;
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}
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// Default configuration settings for document repositories.
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// Preliminary calculations for assembling required paths.
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$script_name = substr($_SERVER['PHP_SELF'], strlen(api_get_path(REL_PATH)));
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$script_path = explode('/', $script_name);
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$script_path[count($script_path) - 1] = '';
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if (api_is_in_course())
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{
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$relative_path_prefix = str_repeat('../', count($script_path) - 1);
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}
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else
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{
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$relative_path_prefix = str_repeat('../', count($script_path) - 2);
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}
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$script_path = implode('/', $script_path);
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$script_path = api_get_path(WEB_PATH).$script_path;
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$use_advanced_filemanager = api_get_setting('advanced_filemanager') == 'true';
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if (api_is_in_course())
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{
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if (!api_is_in_group())
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{
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// 1. We are inside a course and not in a group.
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if (api_is_allowed_to_edit())
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{
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// 1.1. Teacher (tutor and coach are not authorized to change anything in the "content creation" tools)
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if (empty($this->Config['CreateDocumentWebDir']))
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{
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$this->Config['CreateDocumentWebDir'] = api_get_path(WEB_COURSE_PATH).api_get_course_path().'/document/';
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}
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if (is_null($this->Config['CreateDocumentDir']))
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{
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$this->Config['CreateDocumentDir'] = $relative_path_prefix.'courses/'.api_get_course_path().'/document/';
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}
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if (empty($this->Config['BaseHref']))
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{
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$this->Config['BaseHref'] = $script_path;
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}
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$upload_path = api_get_path(REL_COURSE_PATH).api_get_course_path().'/document/';
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}
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else
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{
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// 1.2. Student
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if (empty($this->Config['CreateDocumentWebDir']))
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{
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$this->Config['CreateDocumentWebDir'] = api_get_path(WEB_COURSE_PATH).api_get_course_path().'/document/shared_folder/sf_user_'.api_get_user_id().'/';
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}
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if (is_null($this->Config['CreateDocumentDir']))
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{
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$this->Config['CreateDocumentDir'] = $relative_path_prefix.'courses/'.api_get_course_path().'/document/shared_folder/sf_user_'.api_get_user_id().'/';
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}
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if (empty($this->Config['BaseHref']))
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{
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$this->Config['BaseHref'] = $script_path;
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}
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$upload_path = api_get_path(REL_COURSE_PATH).api_get_course_path().'/document/shared_folder/sf_user_'.api_get_user_id().'/';
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}
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}
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else
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{
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// 2. Inside a course and inside a group.
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global $group_properties;
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if (empty($this->Config['CreateDocumentWebDir']))
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{
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$this->Config['CreateDocumentWebDir'] = api_get_path(WEB_COURSE_PATH).api_get_course_path().'/document'.$group_properties['directory'].'/';
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}
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if (is_null($this->Config['CreateDocumentDir']))
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{
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$this->Config['CreateDocumentDir'] = $relative_path_prefix.'courses/'.api_get_course_path().'/document'.$group_properties['directory'].'/';
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}
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if (empty($this->Config['BaseHref']))
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{
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$this->Config['BaseHref'] = $script_path;
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}
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$upload_path = api_get_path(REL_COURSE_PATH).api_get_course_path().'/document'.$group_properties['directory'].'/';
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}
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}
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else
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{
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if (api_is_platform_admin() && $_SESSION['this_section'] == 'platform_admin')
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{
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// 3. Platform administration activities.
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if (empty($this->Config['CreateDocumentWebDir']))
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{
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$this->Config['CreateDocumentWebDir'] = api_get_path(WEB_PATH).'home/default_platform_document/';
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}
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if (is_null($this->Config['CreateDocumentDir']))
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{
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$this->Config['CreateDocumentDir'] = api_get_path(WEB_PATH).'home/default_platform_document/'; // A side-effect is in use here.
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}
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if (empty($this->Config['BaseHref']))
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{
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$this->Config['BaseHref'] = api_get_path(WEB_PATH).'home/default_platform_document/';
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}
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$upload_path = api_get_path(REL_PATH).'home/default_platform_document/';
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}
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else
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{
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// 4. The user is outside courses.
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if (empty($this->Config['CreateDocumentWebDir']))
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{
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$this->Config['CreateDocumentWebDir'] = api_get_path('WEB_PATH').'main/upload/users/'.api_get_user_id().'/my_files/';
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}
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if (is_null($this->Config['CreateDocumentDir']))
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{
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$this->Config['CreateDocumentDir'] = $relative_path_prefix.'upload/users/'.api_get_user_id().'/my_files/';
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}
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if (empty($this->Config['BaseHref']))
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{
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$this->Config['BaseHref'] = $script_path;
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}
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$upload_path = api_get_path(REL_PATH).'main/upload/users/'.api_get_user_id().'/my_files/';
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}
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}
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// Setting hyperlinks used to call file managers.
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if ($use_advanced_filemanager)
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{
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// Let javascripts "know" which file manager has been chosen.
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$this->Config['AdvancedFileManager'] = true;
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// Configuration path when advanced file manager is used.
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$this->Config['CustomConfigurationsPath'] = api_get_path(REL_PATH)."main/inc/lib/fckeditor/myconfig.js";
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//$this->Config['CustomConfigurationsPath'] = api_get_path(REL_PATH)."main/inc/lib/fckeditor/myconfig_afm.js";
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// URLs for opening the file browser for different resource types (file types):
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// for images
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$this->Config['ImageBrowserURL'] = $this->BasePath.'/editor/plugins/ajaxfilemanager/ajaxfilemanager.php';
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// for flash
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$this->Config['FlashBrowserURL'] = $this->BasePath.'/editor/plugins/ajaxfilemanager/ajaxfilemanager.php';
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// for audio files (mp3)
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$this->Config['MP3BrowserURL'] = $this->BasePath.'/editor/plugins/ajaxfilemanager/ajaxfilemanager.php';
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// for videos
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$this->Config['VideoBrowserURL'] = $this->BasePath.'/editor/plugins/ajaxfilemanager/ajaxfilemanager.php';
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// for videos (flv)
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$this->Config['MediaBrowserURL'] = $this->BasePath.'/editor/plugins/ajaxfilemanager/ajaxfilemanager.php';
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// for links (any resource type)
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$this->Config['LinkBrowserURL'] = $this->BasePath.'/editor/plugins/ajaxfilemanager/ajaxfilemanager.php';
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}
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else
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{
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// Passing the file manager setting to the editor's javascripts.
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$this->Config['AdvancedFileManager'] = false;
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// Configuration path when simple file manager is used.
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$this->Config['CustomConfigurationsPath'] = api_get_path(REL_PATH)."main/inc/lib/fckeditor/myconfig.js";
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// URLs for opening the file browser for different resource types (file types):
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// for images
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$this->Config['ImageBrowserURL'] = $this->BasePath . "editor/filemanager/browser/default/browser.html?Type=Images&Connector=connectors/php/connector.php&ServerPath=$upload_path";
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// for flash
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$this->Config['FlashBrowserURL'] = $this->BasePath . "editor/filemanager/browser/default/browser.html?Type=Flash&Connector=connectors/php/connector.php&ServerPath=$upload_path";
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// for audio files (mp3)
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$this->Config['MP3BrowserURL'] = $this->BasePath . "editor/filemanager/browser/default/browser.html?Type=MP3&Connector=connectors/php/connector.php&ServerPath=$upload_path";
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// for videos
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$this->Config['VideoBrowserURL'] = $this->BasePath . "editor/filemanager/browser/default/browser.html?Type=Video&Connector=connectors/php/connector.php&ServerPath=$upload_path";
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// for videos (flv)
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$this->Config['MediaBrowserURL'] = $this->BasePath . "editor/filemanager/browser/default/browser.html?Type=Video/flv&Connector=connectors/php/connector.php&ServerPath=$upload_path";
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// for links (any resource type)
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$this->Config['LinkBrowserURL'] = $this->BasePath . "editor/filemanager/browser/default/browser.html?Type=File&Connector=connectors/php/connector.php&ServerPath=$upload_path";
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}
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// URLs for making quick uplods for different resource types (file types).
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// These URLs are used by the dialogs' quick upload tabs:
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// for images
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$this->Config['ImageUploadURL'] = $this->BasePath . "editor/filemanager/upload/php/upload.php?Type=Images&ServerPath=$upload_path" ;
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// for flash
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$this->Config['FlashUploadURL'] = $this->BasePath . "editor/filemanager/upload/php/upload.php?Type=Flash&ServerPath=$upload_path" ;
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// for audio files (mp3)
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$this->Config['MP3UploadURL'] = $this->BasePath . "editor/filemanager/upload/php/upload.php?Type=MP3&ServerPath=$upload_path" ;
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// for videos
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$this->Config['VideoUploadURL'] = $this->BasePath . "editor/filemanager/upload/php/upload.php?Type=Video&ServerPath=$upload_path" ;
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// for videos (flv)
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$this->Config['MediaUploadURL'] = $this->BasePath . "editor/filemanager/upload/php/upload.php?Type=Video/flv&ServerPath=$upload_path" ;
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// for links (any resource type)
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$this->Config['LinkUploadURL'] = $this->BasePath . "editor/filemanager/upload/php/upload.php?Type=File&ServerPath=$upload_path" ;
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// Passing user status related data to the editor.
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$this->Config['UserIsCourseAdmin'] = api_is_allowed_to_edit() ? true : false;
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$this->Config['UserIsPlatformAdmin'] = api_is_platform_admin() ? true : false;
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// The MimeTeX plugin support.
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$check_mimetex_installed = true; // Change to false in case of unexpected problems. The installed state will be assumed.
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$check_mimetex_timeout = 0.05; // In seconds. Keep this value as low as possible on Windows servers.
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//----------------------------------------------------------------------------------------------------------------------
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static $is_mimetex_installed = null;
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$server_base = explode('/', api_get_path(WEB_PATH));
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$server_base_ip = $server_base[0].'/'.$server_base[1].'/127.0.0.1/'; // To avoid problems on Windows Vista.
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$server_base = $server_base[0].'/'.$server_base[1].'/'.$server_base[2].'/';
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if (defined('PHP_OS'))
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{
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$os = PHP_OS;
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}
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else
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{
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$os = php_uname();
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}
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if (strtoupper(substr($os, 0, 3 )) === 'WIN')
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{
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$this->Config['MimetexUrl'] = $server_base.'cgi-bin/mimetex.exe';
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$check_mimetex_url = $server_base_ip.'cgi-bin/mimetex.exe';
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}
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else
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{
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$this->Config['MimetexUrl'] = $server_base.'cgi-bin/mimetex.cgi';
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$check_mimetex_url = $server_base.'cgi-bin/mimetex.cgi';
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}
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if ($check_mimetex_installed)
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{
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if (!isset($is_mimetex_installed))
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{
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$this->Config['IsMimetexInstalled'] = $this->url_exists($check_mimetex_url.'?'.rand(), $check_mimetex_timeout);
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}
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else
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{
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$this->Config['IsMimetexInstalled'] = $is_mimetex_installed;
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}
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}
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else
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{
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$this->Config['IsMimetexInstalled'] = true;
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}
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$is_mimetex_installed = $this->Config['IsMimetexInstalled'];
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/*
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* The original code starts from here.
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*/
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$HtmlValue = htmlspecialchars( $this->Value ) ;
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$Html = '' ;
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if ( $this->IsCompatible() )
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{
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if ( isset( $_GET['fcksource'] ) && $_GET['fcksource'] == "true" )
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$File = 'fckeditor.original.html' ;
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else
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$File = 'fckeditor.html' ;
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$Link = "{$this->BasePath}editor/{$File}?InstanceName={$this->InstanceName}" ;
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if ( $this->ToolbarSet != '' )
|
|
$Link .= "&Toolbar={$this->ToolbarSet}" ;
|
|
|
|
// Render the linked hidden field.
|
|
$Html .= "<input type=\"hidden\" id=\"{$this->InstanceName}\" name=\"{$this->InstanceName}\" value=\"{$HtmlValue}\" style=\"display:none\" />" ;
|
|
|
|
// Render the configurations hidden field.
|
|
$Html .= "<input type=\"hidden\" id=\"{$this->InstanceName}___Config\" value=\"" . $this->GetConfigFieldString() . "\" style=\"display:none\" />" ;
|
|
|
|
// Render the editor IFRAME.
|
|
$Html .= "<iframe id=\"{$this->InstanceName}___Frame\" src=\"{$Link}\" width=\"{$this->Width}\" height=\"{$this->Height}\" frameborder=\"0\" scrolling=\"no\"></iframe>" ;
|
|
}
|
|
else
|
|
{
|
|
if ( strpos( $this->Width, '%' ) === false )
|
|
$WidthCSS = $this->Width . 'px' ;
|
|
else
|
|
$WidthCSS = $this->Width ;
|
|
|
|
if ( strpos( $this->Height, '%' ) === false )
|
|
$HeightCSS = $this->Height . 'px' ;
|
|
else
|
|
$HeightCSS = $this->Height ;
|
|
|
|
$Html .= "<textarea name=\"{$this->InstanceName}\" rows=\"4\" cols=\"40\" style=\"width: {$WidthCSS}; height: {$HeightCSS}\">{$HtmlValue}</textarea>" ;
|
|
}
|
|
|
|
return $Html ;
|
|
}
|
|
|
|
/**
|
|
* Returns true if browser is compatible with FCKeditor.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function IsCompatible()
|
|
{
|
|
return FCKeditor_IsCompatibleBrowser() ;
|
|
}
|
|
|
|
/**
|
|
* Get settings from Config array as a single string.
|
|
*
|
|
* @access protected
|
|
* @return string
|
|
*/
|
|
public function GetConfigFieldString()
|
|
{
|
|
$sParams = '' ;
|
|
$bFirst = true ;
|
|
|
|
foreach ( $this->Config as $sKey => $sValue )
|
|
{
|
|
if ( $bFirst == false )
|
|
$sParams .= '&' ;
|
|
else
|
|
$bFirst = false ;
|
|
|
|
if ( $sValue === true )
|
|
$sParams .= $this->EncodeConfig( $sKey ) . '=true' ;
|
|
else if ( $sValue === false )
|
|
$sParams .= $this->EncodeConfig( $sKey ) . '=false' ;
|
|
else
|
|
$sParams .= $this->EncodeConfig( $sKey ) . '=' . $this->EncodeConfig( $sValue ) ;
|
|
}
|
|
|
|
return $sParams ;
|
|
}
|
|
|
|
/*
|
|
* Checks whether a given url exists.
|
|
*
|
|
* @url string
|
|
* @return boolean
|
|
*
|
|
* @author Ivan Tcholakov, FEB-2009
|
|
*/
|
|
|
|
private function url_exists($url, $timeout = 30)
|
|
{
|
|
$parsed = parse_url($url);
|
|
$scheme = isset($parsed['scheme']) ? $parsed['scheme'] : 'http';
|
|
$host = $parsed['host'];
|
|
$port = isset($parsed['port']) ? $parsed['port'] : ($scheme == 'http' ? 80 : ($scheme == 'https' ? 443 : -1 ));
|
|
|
|
$file_exists = false;
|
|
$fp = @fsockopen($host, $port, $errno, $errstr, $timeout);
|
|
if ($fp)
|
|
{
|
|
$request = "HEAD ".$url." / HTTP/1.1\r\n";
|
|
$request .= "Host: ".$host."\r\n";
|
|
$request .= "Connection: Close\r\n\r\n";
|
|
|
|
@fwrite($fp, $request);
|
|
while (!@feof($fp))
|
|
{
|
|
$header = @fgets($fp, 128);
|
|
if(@preg_match('#HTTP/1.1 200 OK#', $header))
|
|
{
|
|
$file_exists = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
@fclose($fp);
|
|
return $file_exists;
|
|
}
|
|
|
|
/**
|
|
* Encode characters that may break the configuration string
|
|
* generated by GetConfigFieldString().
|
|
*
|
|
* @access protected
|
|
* @param string $valueToEncode
|
|
* @return string
|
|
*/
|
|
public function EncodeConfig( $valueToEncode )
|
|
{
|
|
$chars = array(
|
|
'&' => '%26',
|
|
'=' => '%3D',
|
|
'"' => '%22' ) ;
|
|
|
|
return strtr( $valueToEncode, $chars ) ;
|
|
}
|
|
}
|
|
|