<?php
/* For licensing terms, see /license.txt */
/**
 *	This file allows creating new html documents with an online WYSIWYG html editor.
 *
 *	@package chamilo.document
 */

require_once '../inc/global.inc.php';

$_SESSION['whereami'] = 'document/create';
$this_section = SECTION_COURSES;

$htmlHeadXtra[] = '
<script>

var hide_bar = function() {
    $("#template_col").hide();
    $("#doc_form").removeClass("col-md-9");
    $("#doc_form").addClass("col-md-11");
    $("#hide_bar_template").css({"background-image" : \'url("../img/hide2.png")\'})
}

$(document).ready(function() {
    if ($(window).width() <= 785 ) {
        hide_bar();
    }

    $("#hide_bar_template").click(function() {
        $("#template_col").toggleClass("hide");
        $("#hide_bar_template").toggleClass("hide_bar_template_not_hide");
    });

    CKEDITOR.on("instanceReady", function (e) {
        showTemplates();
    });
});

function setFocus() {
   $("#document_title").focus();
}

$(window).load(function () {
	setFocus();
});

</script>';

//I'm in the certification module?
$is_certificate_mode = false;

if (isset($_REQUEST['certificate']) && $_REQUEST['certificate'] == 'true') {
	$is_certificate_mode = true;
}

if ($is_certificate_mode) {
	$nameTools = get_lang('CreateCertificate');
} else {
	$nameTools = get_lang('CreateDocument');
}

/*	Constants and variables */

$doc_table = Database::get_course_table(TABLE_DOCUMENT);
$course_id = api_get_course_int_id();
$courseCode = api_get_course_id();
$sessionId = api_get_session_id();
$userId = api_get_user_id();
$_course = api_get_course_info();
$groupId = api_get_group_id();
$document_data = array();

if (isset($_REQUEST['id'])) {
    $document_data = DocumentManager::get_document_data_by_id(
        $_REQUEST['id'],
        $courseCode,
        true,
        0
    );
}

if (!empty($sessionId) && empty($document_data)) {
    $document_data = DocumentManager::get_document_data_by_id(
        $_REQUEST['id'],
        $courseCode,
        true,
        $sessionId
    );
}

if (empty($document_data)) {
    if (api_is_in_group()) {
        $group_properties = GroupManager::get_group_properties($groupId);
        $document_id = DocumentManager::get_document_id($_course, $group_properties['directory']);
        $document_data = DocumentManager::get_document_data_by_id($document_id, api_get_course_id());
        $dir = $document_data['path'];
        $folder_id = $document_data['id'];
    } else {
        $dir = '/';
        $folder_id = 0;
    }
} else {
    $folder_id = $document_data['id'];
    $dir       = $document_data['path'];
}


/*	MAIN CODE */

// Please, do not modify this dirname formatting
if (strstr($dir, '..')) {
	$dir = '/';
}

if ($dir[0] == '.') {
	$dir = substr($dir, 1);
}

if ($dir[0] != '/') {
	$dir = '/'.$dir;
}

if ($dir[strlen($dir) - 1] != '/') {
	$dir .= '/';
}

if ($is_certificate_mode) {
	$document_id 	= DocumentManager::get_document_id(api_get_course_info(), '/certificates');
	$document_data 	= DocumentManager::get_document_data_by_id($document_id, api_get_course_id(), true);
	$folder_id = $document_data['id'];
	$dir = '/certificates/';
}

$doc_tree  = explode('/', $dir);
$count_dir = count($doc_tree) -2; // "2" because at the begin and end there are 2 "/"

if (api_is_in_group()) {
    $group_properties = GroupManager::get_group_properties(api_get_group_id());

    // Level correction for group documents.
    if (!empty($group_properties['directory'])) {
    	$count_dir = $count_dir > 0 ? $count_dir - 1 : 0;
    }
}
$relative_url = '';
for ($i = 0; $i < ($count_dir); $i++) {
	$relative_url .= '../';
}

if ($relative_url== '') {
	$relative_url = '/';
}

$is_allowed_to_edit = api_is_allowed_to_edit(null, true);

$editorConfig = array(
    'ToolbarSet' => ($is_allowed_to_edit ? 'Documents' : 'DocumentsStudent'),
    'Width' => '100%',
    'Height' => '500',
    'FullPage' => true,
    'InDocument' => true,
	'CreateDocumentDir'    => $relative_url,
	'CreateDocumentWebDir' => (empty($group_properties['directory']))
                        		? api_get_path(WEB_COURSE_PATH).$_course['path'].'/document/'
                        		: api_get_path(WEB_COURSE_PATH).api_get_course_path().'/document'.$group_properties['directory'].'/',
	'BaseHref'             => api_get_path(WEB_COURSE_PATH).$_course['path'].'/document'.$dir
);

if ($is_certificate_mode) {
    $editorConfig['CreateDocumentDir'] = api_get_path(WEB_COURSE_PATH).$_course['path'].'/document/';
    $editorConfig['CreateDocumentWebDir'] = api_get_path(WEB_COURSE_PATH).$_course['path'].'/document/';
    $editorConfig['BaseHref'] = api_get_path(WEB_COURSE_PATH).$_course['path'].'/document'.$dir;
}

$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.$dir;

if (!is_dir($filepath)) {
	$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
	$dir = '/';
}

$to_group_id = 0;

if (!$is_certificate_mode) {
	if (api_is_in_group()) {
		$interbreadcrumb[] = array ("url" => "../group/group_space.php?".api_get_cidreq(), "name" => get_lang('GroupSpace'));
		$noPHP_SELF = true;
		$to_group_id = api_get_group_id();
		$path = explode('/', $dir);
		if ('/'.$path[1] != $group_properties['directory']) {
			api_not_allowed(true);
		}
	}
	$interbreadcrumb[] = array("url" => "./document.php?curdirpath=".urlencode($dir)."&".api_get_cidreq(), "name" => get_lang('Documents'));
} else {
	$interbreadcrumb[]= array('url' => '../gradebook/'.$_SESSION['gradebook_dest'], 'name' => get_lang('Gradebook'));
}

if (!$is_allowed_in_course) {
	api_not_allowed(true);
}

if (!($is_allowed_to_edit ||
    $_SESSION['group_member_with_upload_rights'] ||
    DocumentManager::is_my_shared_folder($userId, $dir, api_get_session_id()))
) {
	api_not_allowed(true);
}

/*	Header */
Event::event_access_tool(TOOL_DOCUMENT);

$display_dir = $dir;
if (isset($group_properties)) {
	$display_dir = explode('/', $dir);
	unset($display_dir[0]);
	unset($display_dir[1]);
	$display_dir = implode('/', $display_dir);
}

$select_cat = isset($_GET['selectcat']) ? intval($_GET['selectcat']) : null;
$curDirPath = isset($_GET['curdirpath']) ? Security::remove_XSS($_GET['curdirpath']) : null;
// Create a new form
$form = new FormValidator(
    'create_document',
    'post',
    api_get_self().'?'.api_get_cidreq().'&dir='.Security::remove_XSS(urlencode($dir)).'&selectcat='.$select_cat,
    null,
    array('class' =>'form-vertical')
);

// form title
$form->addElement('header', $nameTools);

if ($is_certificate_mode) {//added condition for certicate in gradebook
	$form->addElement('hidden','certificate','true',array('id'=>'certificate'));
	if (isset($_GET['selectcat'])) {
		$form->addElement('hidden','selectcat', $select_cat);
    }
}

// Hidden element with current directory
$form->addElement('hidden', 'id');
$defaults = array();
$defaults['id'] = $folder_id;

// Filename
$form->addElement('hidden', 'title_edited', 'false', 'id="title_edited"');

/**
 * Check if a document width the chosen filename already exists
 */
function document_exists($filename)
{
    global $dir;
    $cleanName = api_replace_dangerous_char($filename);

    // No "dangerous" files
    $cleanName = disable_dangerous_file($cleanName);

    return !DocumentManager::documentExists(
        $dir.$cleanName.'.html',
        api_get_course_info(),
        api_get_session_id(),
        api_get_group_id()
    );
}

// Add group to the form
if ($is_certificate_mode) {
    $form->addText('title', get_lang('CertificateName'), true, array('autofocus'));
} else {
	$form->addText('title', get_lang('Title'), true, array('autofocus'));
}

// Show read-only box only in groups
if (!empty($groupId)) {
	$group[]= $form->createElement('checkbox', 'readonly', '', get_lang('ReadOnly'));
}
$form->addRule('title', get_lang('ThisFieldIsRequired'), 'required');
$form->addRule('title', get_lang('FileExists'), 'callback', 'document_exists');

$current_session_id = api_get_session_id();
$form->addHtmlEditor('content','', true, true, $editorConfig);

// Comment-field
$folders = DocumentManager::get_all_document_folders($_course, $to_group_id, $is_allowed_to_edit);

// If we are not in the certificates creation, display a folder chooser for the
// new document created

if (!$is_certificate_mode &&
	!DocumentManager::is_my_shared_folder($userId, $dir, $current_session_id)
) {
	$folders = DocumentManager::get_all_document_folders($_course, $to_group_id, $is_allowed_to_edit);

	$parent_select = $form->addElement('select', 'curdirpath', array(null, get_lang('DestinationDirectory')));

	// Following two conditions copied from document.inc.php::build_directory_selector()
	$folder_titles = array();

    if (is_array($folders)) {
        $escaped_folders = array();
        foreach ($folders as $key => & $val) {
            // Hide some folders
            if ($val=='/HotPotatoes_files' || $val=='/certificates' || basename($val)=='css'){
                continue;
            }
            // Admin setting for Hide/Show the folders of all users
            if (api_get_setting('show_users_folders') == 'false' && (strstr($val, '/shared_folder') || strstr($val, 'shared_folder_session_'))){
                continue;
            }
            // Admin setting for Hide/Show Default folders to all users
            if (api_get_setting('show_default_folders') == 'false' && ($val=='/images' || $val=='/flash' || $val=='/audio' || $val=='/video' || strstr($val, '/images/gallery') || $val=='/video/flv')){
                continue;
            }
            // Admin setting for Hide/Show chat history folder
            if (api_get_setting('show_chat_folder') == 'false' && $val=='/chat_files'){
                continue;
            }

            $escaped_folders[$key] = Database::escape_string($val);
        }
        $folder_sql = implode("','", $escaped_folders);

        $sql = "SELECT * FROM $doc_table
				WHERE
				    c_id = $course_id AND
				    filetype='folder' AND
				    path IN ('".$folder_sql."')";
        $res = Database::query($sql);
        $folder_titles = array();
        while ($obj = Database::fetch_object($res)) {
            $folder_titles[$obj->path] = $obj->title;
        }
    }

	if (empty($group_dir)) {
		$parent_select -> addOption(get_lang('HomeDirectory'), '/');
		if (is_array($folders)) {
			foreach ($folders as & $folder) {
				//Hide some folders
				if ($folder=='/HotPotatoes_files' || $folder=='/certificates' || basename($folder)=='css') {
                    continue;
				}
				//Admin setting for Hide/Show the folders of all users
				if (api_get_setting('show_users_folders') == 'false' &&
                    (strstr($folder, '/shared_folder') || strstr($folder, 'shared_folder_session_'))
                ){
					continue;
				}
				//Admin setting for Hide/Show Default folders to all users
				if (api_get_setting('show_default_folders') == 'false' &&
                    (
                        $folder == '/images' ||
                        $folder == '/flash' ||
                        $folder == '/audio' ||
                        $folder == '/video' ||
                        strstr($folder, '/images/gallery') ||
                        $folder == '/video/flv'
                    )
                ){
					continue;
				}
				//Admin setting for Hide/Show chat history folder
				if (api_get_setting('show_chat_folder') == 'false' &&
                    $folder=='/chat_files'
                ){
					continue;
				}

				$selected = (substr($dir,0,-1) == $folder) ? ' selected="selected"' : '';
				$path_parts = explode('/', $folder);
				$folder_titles[$folder] = cut($folder_titles[$folder], 80);
                $space_counter =count($path_parts) - 2;
                if ($space_counter > 0) {
                    $label = str_repeat('&nbsp;&nbsp;&nbsp;', $space_counter).' &mdash; '.$folder_titles[$folder];
                } else {
                    $label = ' &mdash; '.$folder_titles[$folder];
                }
				$parent_select -> addOption($label, $folder);
				if ($selected != '') {
					$parent_select->setSelected($folder);
				}
			}
		}
	} else {
		foreach ($folders as & $folder) {
			$selected = (substr($dir,0,-1)==$folder) ? ' selected="selected"' : '';
			$label = $folder_titles[$folder];
			if ($folder == $group_dir) {
				$label = '/ ('.get_lang('HomeDirectory').')';
			} else {
				$path_parts = explode('/', str_replace($group_dir, '', $folder));
				$label = cut($label, 80);
				$label = str_repeat('&nbsp;&nbsp;&nbsp;', count($path_parts) - 2).' &mdash; '.$label;
			}
			$parent_select -> addOption($label, $folder);
			if ($selected != '') {
				$parent_select->setSelected($folder);
			}
		}
	}
}

if ($is_certificate_mode) {
	$form->addButtonCreate(get_lang('CreateCertificate'));
} else {
	$form->addButtonCreate(get_lang('CreateDoc'));
}

$form->setDefaults($defaults);

// If form validates -> save the new document
if ($form->validate()) {
	$values = $form->exportValues();
	$readonly = isset($values['readonly']) ? 1 : 0;
	$values['title'] = trim($values['title']);

    if ($dir[strlen($dir) - 1] != '/') {
		$dir .= '/';
	}

    // Setting the filename
	$filename = $values['title'];
	$filename = addslashes(trim($filename));
	$filename = Security::remove_XSS($filename);
	$filename = api_replace_dangerous_char($filename);
	$filename = disable_dangerous_file($filename);
    $filename .= DocumentManager::getDocumentSuffix(
        $_course,
        api_get_session_id(),
        api_get_group_id()
    );

    // Setting the title
	$title = $values['title'];

    // Setting the extension
	$extension = 'html';

	$content = Security::remove_XSS($values['content'], COURSEMANAGERLOWSECURITY);

	/*if (strpos($content, '/css/frames.css') == false) {
		$content = str_replace('</head>', '<link rel="stylesheet" href="./css/frames.css" type="text/css" /><style> body{margin:50px;}</style></head>', $content);
	}*/

    // Don't create file with the same name.

    if (file_exists($filepath.$filename.'.'.$extension)) {
        Display:: display_header($nameTools, 'Doc');
        Display:: display_error_message(get_lang('FileExists').' '.$title, false);
        Display:: display_footer();
        exit;
    }

	if ($fp = @fopen($filepath.$filename.'.'.$extension, 'w')) {
		$content = str_replace(api_get_path(WEB_COURSE_PATH), $_configuration['url_append'].'/courses/', $content);

		fputs($fp, $content);
		fclose($fp);
		chmod($filepath.$filename.'.'.$extension, api_get_permissions_for_new_files());

        /*
		if (!is_dir($filepath.'css')) {
			mkdir($filepath.'css', api_get_permissions_for_new_directories());
			$doc_id = add_document($_course, $dir.'css', 'folder', 0, 'css');
			api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'FolderCreated', $userId, null, null, null, null, $current_session_id);
			api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'invisible', $userId, null, null, null, null, $current_session_id);
		}

		if (!is_file($filepath.'css/frames.css')) {
			// Make a copy of the current css for the new document
			copy(api_get_path(SYS_CODE_PATH).'css/'.api_get_setting('stylesheets').'/frames.css', $filepath.'css/frames.css');
			$doc_id = add_document($_course, $dir.'css/frames.css', 'file', filesize($filepath.'css/frames.css'), 'frames.css');
			api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'DocumentAdded', $userId, null, null, null, null, $current_session_id);
			api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'invisible', $userId, null, null, null, null, $current_session_id);
		}*/

		$file_size = filesize($filepath.$filename.'.'.$extension);
		$save_file_path = $dir.$filename.'.'.$extension;

        $document_id = add_document(
            $_course,
            $save_file_path,
            'file',
            $file_size,
            $title,
            null,
            $readonly
        );

		if ($document_id) {
			api_item_property_update(
                $_course,
                TOOL_DOCUMENT,
                $document_id,
                'DocumentAdded',
                $userId,
                $to_group_id,
                null,
                null,
                null,
                $current_session_id
            );
			// Update parent folders
			item_property_update_on_folder($_course, $dir, $userId);
			$new_comment = isset($_POST['comment']) ? trim($_POST['comment']) : '';
			$new_title = isset($_POST['title']) ? trim($_POST['title']) : '';
            $new_title = htmlspecialchars($new_title);
			if ($new_comment || $new_title) {
				$ct = '';
                $params = [];
                if ($new_comment) {
                    $params['comment'] = $new_comment;
                }
                if ($new_title) {
                    $params['title'] = $new_title;
                }
                if (!empty($params)) {
                    Database::update(
                        $doc_table,
                        $params,
                        ['c_id = ? AND id = ?' => [$course_id, $document_id]]
                    );
                }
			}
			$dir= substr($dir,0,-1);
			$selectcat = '';
			if (isset($_REQUEST['selectcat']))
				$selectcat = "&selectcat=".Security::remove_XSS($_REQUEST['selectcat']);
			$certificate_condition = '';
			if ($is_certificate_mode) {
				$df = DocumentManager::get_default_certificate_id($_course['code']);
                if (!isset($df)) {
                    DocumentManager::attach_gradebook_certificate ($_course['code'],$document_id);
				}
				$certificate_condition = '&certificate=true&curdirpath=/certificates';
			}

			header('Location: document.php?'.api_get_cidreq().'&id='.$folder_id.$selectcat.$certificate_condition);
			exit();
		} else {
			Display :: display_header($nameTools, 'Doc');
			Display :: display_error_message(get_lang('Impossible'));
			Display :: display_footer();
		}
	} else {
		Display :: display_header($nameTools, 'Doc');
		Display :: display_error_message(get_lang('Impossible'));
		Display :: display_footer();
	}
} else {
	// Copied from document.php
	$dir_array = explode('/', $dir);
	$array_len = count($dir_array);

	// Breadcrumb for the current directory root path
    if (!empty($document_data)) {
        if (empty($document_data['parents'])) {
            $interbreadcrumb[] = array(
                'url' => '#',
                'name' => $document_data['title']
            );
        } else {
            foreach ($document_data['parents'] as $document_sub_data) {
                $interbreadcrumb[] = array(
                    'url' => $document_sub_data['document_url'],
                    'name' => $document_sub_data['title']
                );
            }
        }
    }

	Display :: display_header($nameTools, "Doc");
	// actions
	echo '<div class="actions">';

	// link back to the documents overview
	if ($is_certificate_mode)
		echo '<a href="document.php?certificate=true&id='.$folder_id.'&selectcat=' . Security::remove_XSS($_GET['selectcat']).'">'.
            Display::return_icon('back.png',get_lang('Back').' '.get_lang('To').' '.get_lang('CertificateOverview'),'',ICON_SIZE_MEDIUM).'</a>';
	else
		echo '<a href="document.php?curdirpath='.Security::remove_XSS($dir).'">'.
            Display::return_icon('back.png',get_lang('Back').' '.get_lang('To').' '.get_lang('DocumentsOverview'),'',ICON_SIZE_MEDIUM).'</a>';
	echo '</div>';

	if ($is_certificate_mode) {
		$all_information_by_create_certificate = DocumentManager::get_all_info_to_certificate(api_get_user_id(), api_get_course_id());

		$str_info = '';
		foreach ($all_information_by_create_certificate[0] as $info_value) {
			$str_info.=$info_value.'<br/>';
		}
		$create_certificate = get_lang('CreateCertificateWithTags');
		Display::display_normal_message($create_certificate.': <br /><br/>'.$str_info,false);
	}
    // HTML-editor
    echo '<div class="row" style="overflow:hidden">
            <div id="template_col" class="col-md-2">
                <div id="frmModel" ></div>
            </div>
            <div class="col-md-1">
                <div id="hide_bar_template"></div>
            </div>
            <div id="doc_form" class="col-md-9">
                '.$form->returnForm().'
            </div>
          </div>';
	Display :: display_footer();
}
