<?php
/*
	FusionPBX
	Version: MPL 1.1

	The contents of this file are subject to the Mozilla Public License Version
	1.1 (the "License"); you may not use this file except in compliance with
	the License. You may obtain a copy of the License at
	http://www.mozilla.org/MPL/

	Software distributed under the License is distributed on an "AS IS" basis,
	WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
	for the specific language governing rights and limitations under the
	License.

	The Original Code is FusionPBX

	The Initial Developer of the Original Code is
	Mark J Crane <markjcrane@fusionpbx.com>
	Portions created by the Initial Developer are Copyright (C) 2018-2020
	the Initial Developer. All Rights Reserved.

	Contributor(s):
	Mark J Crane <markjcrane@fusionpbx.com>
*/

//includes
	require_once "root.php";
	require_once "resources/require.php";
	require_once "resources/check_auth.php";

//check permissions
	if (permission_exists('group_permission_view')) {
		//access granted
	}
	else {
		echo "access denied";
		exit;
	}

//action add or update
	if (is_uuid($_REQUEST["group_uuid"])) {
		$group_uuid = $_REQUEST["group_uuid"];
	}

//get the group_name
	if (is_uuid($group_uuid)) {
		$sql = "select group_name from v_groups ";
		$sql .= "where group_uuid = :group_uuid ";
		$parameters['group_uuid'] = $group_uuid;
		$database = new database;
		$group_name = $database->select($sql, $parameters, 'column');
		unset($sql, $parameters);
	}

//add multi-lingual support
	$language = new text;
	$text = $language->get();

//process permission reload
	if ($_GET['action'] == 'reload' && is_uuid($_GET['group_uuid'])) {
		if (is_array($_SESSION["groups"]) && @sizeof($_SESSION["groups"]) != 0) {
			//clear current permissions
				unset($_SESSION['permissions'], $_SESSION['user']['permissions']);
			//get the permissions assigned to the groups that the current user is a member of, set the permissions in session variables
				$x = 0;
				$sql = "select distinct(permission_name) from v_group_permissions ";
				$sql .= "where (domain_uuid = :domain_uuid or domain_uuid is null) ";
				$sql .= "and permission_assigned = 'true' ";
				foreach ($_SESSION["groups"] as $field) {
					if (strlen($field['group_name']) > 0) {
						$sql_where_or[] = "group_name = :group_name_".$x;
						$parameters['group_name_'.$x] = $field['group_name'];
						$x++;
					}
				}
				if (is_array($sql_where_or) && @sizeof($sql_where_or) != 0) {
					$sql .= "and (".implode(' or ', $sql_where_or).") ";
				}
				$parameters['domain_uuid'] = $_SESSION["domain_uuid"];
				$database = new database;
				$result = $database->select($sql, $parameters, 'all');
				if (is_array($result) && @sizeof($result) != 0) {
					foreach ($result as $row) {
						$_SESSION['permissions'][$row["permission_name"]] = true;
						$_SESSION["user"]["permissions"][$row["permission_name"]] = true;
					}
				}
				unset($sql, $parameters, $result, $row);
			//set message and redirect
				message::add($text['message-permissions_reloaded'],'positive');
				header('Location: group_permissions.php?group_uuid='.urlencode($_GET['group_uuid']));
				exit;
		}
	}

//get the view preference
	$view = $_REQUEST['view'];

//get the http post data
	if (is_array($_POST['group_permissions'])) {
		$action = $_POST['action'];
		$search = $_POST['search'];
		$group_permissions = $_POST['group_permissions'];
	}

//add the search string
	if (isset($_REQUEST["search"])) {
		$search =  strtolower($_REQUEST["search"]);
		$sql_search = " (";
		$sql_search .= "	lower(p.permission_name) like :search \n";
		$sql_search .= ") ";
		$parameters['search'] = '%'.$search.'%';
	}

//get the list
	$sql = "select "; 
	$sql .= "	distinct p.permission_name, \n";
	$sql .= "	p.application_name, \n";
	$sql .= "	g.permission_protected, \n"; 
	$sql .= "	g.group_permission_uuid, \n"; 
	$sql .= "	g.permission_assigned \n";
	$sql .= "from v_permissions as p \n"; 
	$sql .= "left join \n"; 
	$sql .= "	v_group_permissions as g \n"; 
	$sql .= "	on p.permission_name = g.permission_name \n"; 
	$sql .= "	and group_name = :group_name \n"; 
	$sql .= " 	and g.group_uuid = :group_uuid \n";
	if (isset($sql_search)) {
		$sql .= "where ".$sql_search;
	}
	$sql .= "	order by p.application_name, p.permission_name asc "; 
	$parameters['group_name'] = $group_name;
	$parameters['group_uuid'] = $group_uuid;
	$database = new database;
	$group_permissions = $database->select($sql, $parameters, 'all');

//process the user data and save it to the database
	if (count($_POST) > 0 && strlen($_POST["persistformvar"]) == 0) {
			$x = 0;
			if (is_array($_POST['group_permissions'])) {
				foreach($_POST['group_permissions'] as $row) {
					//reset values
						$action = "";
						$save_permission = false;
						$delete_permission = false;
						$save_protected = false;
						$delete_protected = false;
						$persist = false;

					//get the action save or delete
						foreach($group_permissions as $field) {
							if ($field['permission_name'] === $row['permission_name']) {
								if ($field['permission_assigned'] == 'true') {
									if ($row['checked'] == "true") {
										$persist = true;
									}
									else {
										$delete_permission = true;
									}
								}
								else {
									
									if ($row['checked'] == "true") {
										$save_permission = true;
									}
									else {
										//do nothing
									}
								}

								if ($field['permission_protected'] == 'true') {
									if ($row['permission_protected'] == "true") {
										$persist = true;
									}
									else {
										$delete_protected = true;
									}
								}
								else {
									if ($row['permission_protected'] == "true") {
										$save_protected = true;
									}
									else {
										//do nothing
									}
								}

								if ($save_permission || $save_protected) {
									$action = "save";
								}
								elseif ($delete_permission || $delete_protected){
									if ($persist) {
										$action = "save";
									}
									else {
										$action = "delete";
									}
								}
								else {
									$action = "";
								}
								$group_permission_uuid = $field['group_permission_uuid'];
								break;
							}
						}
					
					//build the array;
						if ($action == "save") {
							if (strlen($group_permission_uuid) == 0) {
								$group_permission_uuid = uuid();
							}
							if (isset($row['permission_name']) && strlen($row['permission_name']) > 0) {
								$array['save']['group_permissions'][$x]['group_permission_uuid'] = $group_permission_uuid;
								$array['save']['group_permissions'][$x]['permission_name'] = $row['permission_name'];
								$array['save']['group_permissions'][$x]['permission_protected'] = $row['permission_protected'] == 'true' ? "true" : 'false';
								$array['save']['group_permissions'][$x]['permission_assigned'] = $row['checked'] != "true" ? "false" : "true";
								$array['save']['group_permissions'][$x]['group_uuid'] = $group_uuid;
								$array['save']['group_permissions'][$x]['group_name'] = $group_name;
								$x++;
							}
						}

						if ($action == "delete") {
							if (isset($row['permission_name']) && strlen($row['permission_name']) > 0) {
								$array['delete']['group_permissions'][$x]['permission_name'] = $row['permission_name'];
								$array['delete']['group_permissions'][$x]['group_uuid'] = $group_uuid;
								$array['delete']['group_permissions'][$x]['group_name'] = $group_name;
							}
							$x++;
						}
				}
			}
			
		//validate the token
			$token = new token;
			if (!$token->validate($_SERVER['PHP_SELF'])) {
				message::add($text['message-invalid_token'],'negative');
				header('Location: group_permissions.php?group_uuid='.urlencode($group_uuid).($view ? '&view='.urlencode($view) : null).($search ? '&search='.urlencode($search) : null));
				exit;
			}

		//save the save array
			if (is_array($array['save']) && @sizeof($array['save']) != 0) {
				$database = new database;
				$database->app_name = 'groups';
				$database->app_uuid = '2caf27b0-540a-43d5-bb9b-c9871a1e4f84';
				$database->save($array['save']);
				$message = $database->message;
			}

		//delete the delete array
			if (is_array($array['delete']) && @sizeof($array['delete']) != 0) {
				if (permission_exists('group_permission_delete')) {
					$database = new database;
					$database->app_name = 'groups';
					$database->app_uuid = '2caf27b0-540a-43d5-bb9b-c9871a1e4f84';
					$database->delete($array['delete']);
				}
			}

		//set the message
			message::add($text['message-update']);

		//redirect
			header('Location: group_permissions.php?group_uuid='.urlencode($group_uuid));
			exit;
	}

//create token
	$object = new token;
	$token = $object->create($_SERVER['PHP_SELF']);

//include the header
	$document['title'] = $text['title-group_permissions'];
	require_once "resources/header.php";

//show the content
	echo "<div class='action_bar' id='action_bar'>\n";
	echo "	<div class='heading'><b>".$text['title-group_permissions']." (".escape($group_name).")</b></div>\n";
	echo "	<div class='actions'>\n";
	echo button::create(['type'=>'button','label'=>$text['button-back'],'icon'=>$_SESSION['theme']['button_icon_back'],'id'=>'btn_back','style'=>'margin-right: 15px;','collapse'=>'hide-sm-dn','link'=>'groups.php']);
	echo button::create(['type'=>'button','label'=>$text['button-reload'],'icon'=>$_SESSION['theme']['button_icon_reload'],'link'=>'?group_uuid='.urlencode($group_uuid).'&action=reload']);
	if (permission_exists('group_member_view')) {
		echo button::create(['type'=>'button','label'=>$text['button-members'],'icon'=>'users','link'=>'group_members.php?group_uuid='.urlencode($group_uuid)]);
	}
	echo 		"<form id='form_search' class='inline' method='get'>\n";
	echo 		"<input type='hidden' name='group_uuid' value='".escape($group_uuid)."'>\n";
	echo 		"<select class='txt' style='margin-left: 15px; margin-right: 0;' id='view' name='view' onchange=\"document.getElementById('form_search').submit();\">\n";
	echo 		"	<option value=''>".$text['label-all']."</option>\n";
	echo 		"	<option value='assigned' ".($view == 'assigned' ? "selected='selected'" : null).">".$text['label-assigned']."</option>\n";
	echo 		"	<option value='unassigned' ".($view == 'unassigned' ? "selected='selected'" : null).">".$text['label-unassigned']."</option>\n";
	echo 		"	<option value='protected' ".($view == 'protected' ? "selected='selected'" : null).">".$text['label-group_protected']."</option>\n";
	echo 		"</select>\n";
	echo 		"<input type='text' class='txt list-search' style='margin-left: 0;' name='search' id='search' value=\"".escape($search)."\" placeholder=\"".$text['label-search']."\" onkeydown='list_search_reset();'>";
	echo button::create(['label'=>$text['button-search'],'icon'=>$_SESSION['theme']['button_icon_search'],'type'=>'submit','id'=>'btn_search','collapse'=>'hide-sm-dn','style'=>($search != '' ? 'display: none;' : null)]);
	echo button::create(['label'=>$text['button-reset'],'icon'=>$_SESSION['theme']['button_icon_reset'],'type'=>'button','id'=>'btn_reset','collapse'=>'hide-sm-dn','link'=>'group_permissions.php?group_uuid='.urlencode($group_uuid),'style'=>($search == '' ? 'display: none;' : null)]);
	if (permission_exists('group_permission_edit')) {
		echo button::create(['type'=>'button','label'=>$text['button-save'],'icon'=>$_SESSION['theme']['button_icon_save'],'id'=>'btn_save','collapse'=>'hide-sm-dn','style'=>'margin-left: 15px;','onclick'=>"document.getElementById('form_list').submit();"]);
	}
	echo "		</form>\n";
	echo "	</div>\n";
	echo "	<div style='clear: both;'></div>\n";
	echo "</div>\n";

	echo $text['description-group_permissions']."\n";
	echo "<br /><br />\n";

	echo "<form id='form_list' method='post'>\n";
	echo "<input type='hidden' name='".$token['name']."' value='".$token['hash']."'>\n";
	echo "<input type='hidden' name='group_uuid' value='".escape($group_uuid)."'>\n";
	echo "<input type='hidden' name='view' value=\"".escape($view)."\">\n";
	echo "<input type='hidden' name='search' value=\"".escape($search)."\">\n";
	echo "<table class='list' style='margin-bottom: 25px;'>\n";
	if (is_array($group_permissions) && @sizeof($group_permissions) != 0) {
		$x = 0;
		foreach ($group_permissions as $row) {
			$checked = ($row['permission_assigned'] === 'true') ? " checked=\"checked\"" : $checked = '';
			$protected = ($row['permission_protected'] === 'true') ? " checked=\"checked\"" : '';
			$application_name = strtolower(str_replace([' ','-'], '_', $row['application_name']));
			$application_name_label = ucwords(str_replace(['_','-'], " ", $row['application_name']));

			//application heading
			if ($previous_application_name !== $row['application_name']) {
				echo "		<tr class='heading_".$application_name."'>";
				echo "			<td align='left' colspan='999'>&nbsp;</td>\n";
				echo "		</tr>";
				echo "		<tr class='heading_".$application_name."'>";
				echo "			<td align='left' colspan='999' nowrap='nowrap'><b>".escape($application_name_label)."</b></td>\n";
				echo "		</tr>";
				echo "		<tr class='list-header heading_".$application_name."'>\n";
				if (permission_exists('group_permission_add') || permission_exists('group_permission_edit') || permission_exists('group_permission_delete')) {
					echo "		<th class='checkbox'>\n";
					echo "			<input type='checkbox' id='checkbox_all_".$application_name."' name='checkbox_all' onclick=\"list_all_toggle('".$application_name."');\">\n";
					echo "		</th>\n";
				}
				echo th_order_by('group_name', $text['label-group_name'], $order_by, $order);
				if (permission_exists('group_permission_add') || permission_exists('group_permission_edit') || permission_exists('group_permission_delete')) {
					echo th_order_by('group_permission_protected', $text['label-group_protected'], $order_by, $order, null, "style='text-align: right;'");
					echo "		<th class='checkbox'>\n";
					echo "			<input type='checkbox' id='checkbox_all_".$application_name."_protected' name='checkbox_protected_all' onclick=\"list_all_toggle('".$application_name."_protected');\">\n";
					echo "		</th>\n";
				}
				echo "		</tr>\n";
				$displayed_permissions[$application_name] = 0;
			}

			//application permission
			if (!$view || ($view == 'assigned' && $checked) || ($view == 'unassigned' && !$checked) || ($view == 'protected' && $protected)) {
				echo "<tr class='list-row'>\n";
				if (permission_exists('group_permission_add') || permission_exists('group_permission_edit') || permission_exists('group_permission_delete')) {
					echo "	<td class='checkbox'>\n";
					echo "		<input type='checkbox' name='group_permissions[$x][checked]' id='checkbox_".$x."' class='checkbox_".$application_name."' value='true' ".$checked." onclick=\"if (!this.checked) { document.getElementById('checkbox_all_".$application_name."').checked = false; }\">\n";
					echo "		<input type='hidden' name='group_permissions[$x][permission_uuid]' value='".escape($row['permission_uuid'])."' />\n";
					echo "		<input type='hidden' name='group_permissions[$x][permission_name]' value='".escape($row['permission_name'])."' />\n";
					echo "	</td>\n";
				}
				echo "	<td class='no-wrap' onclick=\"if (document.getElementById('checkbox_".$x."').checked) { document.getElementById('checkbox_".$x."').checked = false; document.getElementById('checkbox_all_".$application_name."').checked = false; } else { document.getElementById('checkbox_".$x."').checked = true; }\">";
				echo "		".escape($row['permission_name']);
				echo "	</td>\n";
				if (permission_exists('group_permission_add') || permission_exists('group_permission_edit') || permission_exists('group_permission_delete')) {
					echo "	<td>&nbsp;</td>\n";
					echo "	<td class='checkbox'>\n";
					echo "		<input type='checkbox' name='group_permissions[$x][permission_protected]' id='checkbox_protected_".$x."' class='checkbox_".$application_name."_protected' value='true' ".$protected." onclick=\"if (!this.checked) { document.getElementById('checkbox_all_".$application_name."_protected').checked = false; }\">\n";
					echo "	</td>\n";
				}
				echo "</tr>\n";
				$displayed_permissions[$application_name]++;
			}

			//set the previous application name
			$previous_application_name = $row['application_name'];
			$x++;

		}
		unset($group_permissions);

		//hide application heading if no permissions displayed
		if (is_array($displayed_permissions) && @sizeof($displayed_permissions) != 0) {
			echo "<script>\n";
			foreach ($displayed_permissions as $application_name => $permission_count) {
				if (!$permission_count) {
					echo "$('.heading_".$application_name."').hide();\n";
				}
			}
			echo "</script>\n";
		}

	}

	echo "</table>\n";
	echo "</form>\n";

//include the footer
	require_once "resources/footer.php";

?>