<?php
/*
** Zabbix
** Copyright (C) 2001-2018 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/


require_once dirname(__FILE__).'/include/config.inc.php';
require_once dirname(__FILE__).'/include/forms.inc.php';
require_once dirname(__FILE__).'/include/actions.inc.php';
require_once dirname(__FILE__).'/include/triggers.inc.php';

$page['title'] = _('Configuration of actions');
$page['file'] = 'actionconf.php';
$page['scripts'] = array('multiselect.js');
$page['hist_arg'] = array();

require_once dirname(__FILE__).'/include/page_header.php';

// VAR	TYPE	OPTIONAL	FLAGS	VALIDATION	EXCEPTION
$fields = array(
	'actionid' =>			array(T_ZBX_INT, O_OPT, P_SYS,	DB_ID,		'isset({form})&&{form}=="update"'),
	'name' =>				array(T_ZBX_STR, O_OPT, null,	NOT_EMPTY,	'isset({save})', _('Name')),
	'eventsource' =>		array(T_ZBX_INT, O_OPT, null,
		IN(array(EVENT_SOURCE_TRIGGERS, EVENT_SOURCE_DISCOVERY, EVENT_SOURCE_AUTO_REGISTRATION, EVENT_SOURCE_INTERNAL)),
		null
	),
	'evaltype' =>			array(T_ZBX_INT, O_OPT, null,
		IN(array(ACTION_EVAL_TYPE_AND_OR, ACTION_EVAL_TYPE_AND, ACTION_EVAL_TYPE_OR)), 'isset({save})'),
	'esc_period' =>			array(T_ZBX_INT, O_OPT, null,	BETWEEN(60, 999999), null, _('Default operation step duration')),
	'status' =>				array(T_ZBX_INT, O_OPT, null,	IN(array(ACTION_STATUS_ENABLED, ACTION_STATUS_DISABLED)), null),
	'def_shortdata' =>		array(T_ZBX_STR, O_OPT, null,	null,		'isset({save})'),
	'def_longdata' =>		array(T_ZBX_STR, O_OPT, null,	null,		'isset({save})'),
	'recovery_msg' =>		array(T_ZBX_INT, O_OPT, null,	null,		null),
	'r_shortdata' =>		array(T_ZBX_STR, O_OPT, null,	null,		'isset({recovery_msg})&&isset({save})', _('Recovery subject')),
	'r_longdata' =>			array(T_ZBX_STR, O_OPT, null,	null,		'isset({recovery_msg})&&isset({save})', _('Recovery message')),
	'g_actionid' =>			array(T_ZBX_INT, O_OPT, null,	DB_ID,		null),
	'conditions' =>			array(null,		O_OPT,	null,	null,		null),
	'new_condition' =>		array(null,		O_OPT,	null,	null,		'isset({add_condition})'),
	'operations' =>			array(null,		O_OPT,	null,	null,		'isset({save})'),
	'edit_operationid' =>	array(T_ZBX_STR, O_OPT,	P_ACT,	null,		null),
	'new_operation' =>		array(null,		O_OPT,	null,	null,		'isset({add_operation})'),
	'opconditions' =>		array(null,		O_OPT,	null,	null,		null),
	'new_opcondition' =>	array(null,		O_OPT,	null,	null,		'isset({add_opcondition})'),
	// actions
	'go' =>					array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'add_condition' =>		array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'cancel_new_condition' => array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null, null),
	'add_operation' =>		array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'cancel_new_operation' => array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null, null),
	'add_opcondition' =>	array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'cancel_new_opcondition' => array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null, null),
	'save' =>				array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'clone' =>				array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'delete' =>				array(T_ZBX_STR, O_OPT, P_SYS|P_ACT, null,	null),
	'cancel' =>				array(T_ZBX_STR, O_OPT, P_SYS,	null,		null),
	'form' =>				array(T_ZBX_STR, O_OPT, P_SYS,	null,		null),
	'form_refresh' =>		array(T_ZBX_INT, O_OPT, null,	null,		null),
	// ajax
	'favobj' =>				array(T_ZBX_STR, O_OPT, P_ACT,	null,		null),
	'favref' =>				array(T_ZBX_STR, O_OPT, P_ACT,	NOT_EMPTY,	'isset({favobj})'),
	'favstate' =>			array(T_ZBX_INT, O_OPT, P_ACT,	NOT_EMPTY,	'isset({favobj})&&"filter"=={favobj}')
);

$dataValid = check_fields($fields);

if ($dataValid && hasRequest('eventsource') && !hasRequest('form')) {
	CProfile::update('web.actionconf.eventsource', getRequest('eventsource'), PROFILE_TYPE_INT);
}

validate_sort_and_sortorder('name', ZBX_SORT_UP);

$_REQUEST['go'] = getRequest('go', 'none');

/*
 * Ajax
 */
if (isset($_REQUEST['favobj'])) {
	if ($_REQUEST['favobj'] == 'filter') {
		CProfile::update('web.audit.filter.state', $_REQUEST['favstate'], PROFILE_TYPE_INT);
	}
}
if ($page['type'] == PAGE_TYPE_JS || $page['type'] == PAGE_TYPE_HTML_BLOCK) {
	require_once dirname(__FILE__).'/include/page_footer.php';
	exit();
}
if (isset($_REQUEST['actionid'])) {
	$actionPermissions = API::Action()->get(array(
		'actionids' => $_REQUEST['actionid'],
		'editable' => true
	));
	if (empty($actionPermissions)) {
		access_deny();
	}
}

/*
 * Actions
 */
if (isset($_REQUEST['clone']) && isset($_REQUEST['actionid'])) {
	unset($_REQUEST['actionid']);
	$_REQUEST['form'] = 'clone';
}
elseif (isset($_REQUEST['cancel_new_operation'])) {
	unset($_REQUEST['new_operation']);
}
elseif (isset($_REQUEST['cancel_new_opcondition'])) {
	unset($_REQUEST['new_opcondition']);
}
elseif (hasRequest('save')) {
	$action = array(
		'name'			=> get_request('name'),
		'evaltype'		=> get_request('evaltype', 0),
		'status'		=> get_request('status', ACTION_STATUS_DISABLED),
		'esc_period'	=> get_request('esc_period', 0),
		'def_shortdata'	=> get_request('def_shortdata', ''),
		'def_longdata'	=> get_request('def_longdata', ''),
		'recovery_msg'	=> get_request('recovery_msg', 0),
		'r_shortdata'	=> get_request('r_shortdata', ''),
		'r_longdata'	=> get_request('r_longdata', ''),
		'conditions'	=> get_request('conditions', array()),
		'operations'	=> get_request('operations', array())
	);

	foreach ($action['operations'] as $num => $operation) {
		if (isset($operation['opmessage']) && !isset($operation['opmessage']['default_msg'])) {
			$action['operations'][$num]['opmessage']['default_msg'] = 0;
		}
	}

	DBstart();
	if (hasRequest('actionid')) {
		$action['actionid'] = getRequest('actionid');

		$result = API::Action()->update($action);
		show_messages($result, _('Action updated'), _('Cannot update action'));
	}
	else {
		$action['eventsource'] = getRequest('eventsource',
			CProfile::get('web.actionconf.eventsource', EVENT_SOURCE_TRIGGERS)
		);

		$result = API::Action()->create($action);
		show_messages($result, _('Action added'), _('Cannot add action'));
	}

	$result = DBend($result);
	if ($result) {
		add_audit(
			hasRequest('actionid') ? AUDIT_ACTION_UPDATE : AUDIT_ACTION_ADD,
			AUDIT_RESOURCE_ACTION,
			_('Name').NAME_DELIMITER.$action['name']
		);

		unset($_REQUEST['form']);
	}

	clearCookies($result);
}
elseif (isset($_REQUEST['delete']) && isset($_REQUEST['actionid'])) {
	$result = API::Action()->delete($_REQUEST['actionid']);

	show_messages($result, _('Action deleted'), _('Cannot delete action'));

	if ($result) {
		unset($_REQUEST['form'], $_REQUEST['actionid']);
		clearCookies($result);
	}
}
elseif (isset($_REQUEST['add_condition']) && isset($_REQUEST['new_condition'])) {
	try {
		$newCondition = get_request('new_condition');

		if ($newCondition) {
			$conditions = get_request('conditions', array());

			// when adding new maintenance, in order to check for an existing maintenance, it must have a not null value
			if ($newCondition['conditiontype'] == CONDITION_TYPE_MAINTENANCE) {
				$newCondition['value'] = '';
			}

			// check existing conditions and remove duplicate condition values
			foreach ($conditions as $condition) {
				if ($newCondition['conditiontype'] == $condition['conditiontype']) {
					if (is_array($newCondition['value'])) {
						foreach ($newCondition['value'] as $key => $newValue) {
							if ($condition['value'] == $newValue) {
								unset($newCondition['value'][$key]);
							}
						}
					}
					else {
						if ($newCondition['value'] == $condition['value']) {
							$newCondition['value'] = null;
						}
					}
				}
			}

			$validateConditions = $conditions;

			if (isset($newCondition['value'])) {
				$newConditionValues = zbx_toArray($newCondition['value']);
				foreach ($newConditionValues as $newValue) {
					$condition = $newCondition;
					$condition['value'] = $newValue;
					$validateConditions[] = $condition;
				}
			}

			if ($validateConditions) {
				CAction::validateConditions($validateConditions);
			}

			$_REQUEST['conditions'] = $validateConditions;
		}
	}
	catch (APIException $e) {
		show_error_message(_('Cannot add action condition'));
		error($e->getMessage());
	}
}
elseif (isset($_REQUEST['add_opcondition']) && isset($_REQUEST['new_opcondition'])) {
	$new_opcondition = $_REQUEST['new_opcondition'];

	try {
		CAction::validateOperationConditions($new_opcondition);
		$new_operation = get_request('new_operation', array());

		if (!isset($new_operation['opconditions'])) {
			$new_operation['opconditions'] = array();
		}
		if (!str_in_array($new_opcondition, $new_operation['opconditions'])) {
			array_push($new_operation['opconditions'], $new_opcondition);
		}

		$_REQUEST['new_operation'] = $new_operation;

		unset($_REQUEST['new_opcondition']);
	}
	catch (APIException $e) {
		error($e->getMessage());
	}
}
elseif (isset($_REQUEST['add_operation']) && isset($_REQUEST['new_operation'])) {
	$new_operation = $_REQUEST['new_operation'];
	$result = true;

	if (API::Action()->validateOperations($new_operation)) {
		$_REQUEST['operations'] = get_request('operations', array());

		$uniqOperations = array(
			OPERATION_TYPE_HOST_ADD => 0,
			OPERATION_TYPE_HOST_REMOVE => 0,
			OPERATION_TYPE_HOST_ENABLE => 0,
			OPERATION_TYPE_HOST_DISABLE => 0
		);
		if (isset($uniqOperations[$new_operation['operationtype']])) {
			$uniqOperations[$new_operation['operationtype']]++;
			foreach ($_REQUEST['operations'] as $operationId => $operation) {
				if (array_key_exists($operation['operationtype'], $uniqOperations)
					&& (!array_key_exists('id', $new_operation)
						|| bccomp($new_operation['id'], $operationId) != 0)) {
					$uniqOperations[$operation['operationtype']]++;
				}
			}
			if ($uniqOperations[$new_operation['operationtype']] > 1) {
				$result = false;
				info(_s('Operation "%s" already exists.', operation_type2str($new_operation['operationtype'])));
				show_messages();
			}
		}

		if ($result) {
			$eventsource = getRequest('eventsource',
				CProfile::get('web.actionconf.eventsource', EVENT_SOURCE_TRIGGERS)
			);

			if (isset($new_operation['id'])) {
				$_REQUEST['operations'][$new_operation['id']] = $new_operation;
			}
			else {
				$_REQUEST['operations'][] = $new_operation;
			}

			sortOperations($eventsource, $_REQUEST['operations']);
		}

		unset($_REQUEST['new_operation']);
	}
}
elseif (isset($_REQUEST['edit_operationid'])) {
	$_REQUEST['edit_operationid'] = array_keys($_REQUEST['edit_operationid']);
	$edit_operationid = $_REQUEST['edit_operationid'] = array_pop($_REQUEST['edit_operationid']);
	$_REQUEST['operations'] = get_request('operations', array());

	if (isset($_REQUEST['operations'][$edit_operationid])) {
		$_REQUEST['new_operation'] = $_REQUEST['operations'][$edit_operationid];
		$_REQUEST['new_operation']['id'] = $edit_operationid;
		$_REQUEST['new_operation']['action'] = 'update';
	}
}
elseif (str_in_array(getRequest('go'), array('activate', 'disable')) && hasRequest('g_actionid')) {
	$status = (getRequest('go') == 'activate') ? ACTION_STATUS_ENABLED : ACTION_STATUS_DISABLED;
	$actionids = (array) getRequest('g_actionid', array());
	$actions_count = count($actionids);
	$actions = array();

	foreach ($actionids as $actionid) {
		$actions[] = array('actionid' => $actionid, 'status' => $status);
	}

	$response = API::Action()->update($actions);

	if ($response && array_key_exists('actionids', $response)) {
		$message = $status == ACTION_STATUS_ENABLED
			? _n('Action enabled', 'Actions enabled', $actions_count)
			: _n('Action disabled', 'Actions disabled', $actions_count);

		add_audit(AUDIT_ACTION_UPDATE, AUDIT_RESOURCE_ACTION, ' Actions ['.implode(',', $response['actionids']).'] '.
			($status == ACTION_STATUS_ENABLED ? 'enabled' : 'disabled')
		);
		show_messages(true, $message);
		clearCookies(true);
	}
	else {
		$message = $status == ACTION_STATUS_ENABLED
			? _n('Cannot enable action', 'Cannot enable actions', $actions_count)
			: _n('Cannot disable action', 'Cannot disable actions', $actions_count);

		show_messages(false, null, $message);
	}
}
elseif ($_REQUEST['go'] == 'delete' && isset($_REQUEST['g_actionid'])) {
	$goResult = API::Action()->delete($_REQUEST['g_actionid']);

	show_messages($goResult, _('Selected actions deleted'), _('Cannot delete selected actions'));
	clearCookies($goResult);
}

/*
 * Display
 */
show_messages();

if (hasRequest('form')) {
	$data = array(
		'form' => get_request('form'),
		'actionid' => get_request('actionid'),
		'new_condition' => get_request('new_condition', array()),
		'new_operation' => get_request('new_operation', null)
	);

	$action = null;
	if ($data['actionid']) {
		$data['action'] = API::Action()->get(array(
			'actionids' => $data['actionid'],
			'selectOperations' => API_OUTPUT_EXTEND,
			'selectConditions' => API_OUTPUT_EXTEND,
			'output' => API_OUTPUT_EXTEND,
			'editable' => true
		));
		$data['action'] = reset($data['action']);
		$data['eventsource'] = $data['action']['eventsource'];
	}
	else {
		$data['eventsource'] = getRequest('eventsource',
			CProfile::get('web.actionconf.eventsource', EVENT_SOURCE_TRIGGERS)
		);
		$data['evaltype'] = getRequest('evaltype');
		$data['esc_period'] = getRequest('esc_period');
	}

	if (isset($data['action']['actionid']) && !hasRequest('form_refresh')) {
		sortOperations($data['eventsource'], $data['action']['operations']);
	}
	else {
		$data['action']['name'] = get_request('name');
		$data['action']['evaltype'] = get_request('evaltype', 0);
		$data['action']['esc_period'] = get_request('esc_period', SEC_PER_HOUR);
		$data['action']['status'] = get_request('status', hasRequest('form_refresh') ? 1 : 0);
		$data['action']['recovery_msg'] = get_request('recovery_msg', 0);
		$data['action']['conditions'] = get_request('conditions', array());
		$data['action']['operations'] = get_request('operations', array());

		if ($data['actionid'] && hasRequest('form_refresh')) {
			$data['action']['def_shortdata'] = get_request('def_shortdata');
			$data['action']['def_longdata'] = get_request('def_longdata');
		}
		else {
			if ($data['eventsource'] == EVENT_SOURCE_TRIGGERS) {
				$data['action']['def_shortdata'] = get_request('def_shortdata', ACTION_DEFAULT_SUBJ_TRIGGER);
				$data['action']['def_longdata'] = get_request('def_longdata', ACTION_DEFAULT_MSG_TRIGGER);
				$data['action']['r_shortdata'] = get_request('r_shortdata', ACTION_DEFAULT_SUBJ_TRIGGER);
				$data['action']['r_longdata'] = get_request('r_longdata', ACTION_DEFAULT_MSG_TRIGGER);
			}
			elseif ($data['eventsource'] == EVENT_SOURCE_DISCOVERY) {
				$data['action']['def_shortdata'] = get_request('def_shortdata', ACTION_DEFAULT_SUBJ_DISCOVERY);
				$data['action']['def_longdata'] = get_request('def_longdata', ACTION_DEFAULT_MSG_DISCOVERY);
			}
			elseif ($data['eventsource'] == EVENT_SOURCE_AUTO_REGISTRATION) {
				$data['action']['def_shortdata'] = get_request('def_shortdata', ACTION_DEFAULT_SUBJ_AUTOREG);
				$data['action']['def_longdata'] = get_request('def_longdata', ACTION_DEFAULT_MSG_AUTOREG);
			}
			else {
				$data['action']['def_shortdata'] = get_request('def_shortdata');
				$data['action']['def_longdata'] = get_request('def_longdata');
				$data['action']['r_shortdata'] = get_request('r_shortdata');
				$data['action']['r_longdata'] = get_request('r_longdata');
			}
		}
	}

	if (!$data['actionid'] && !hasRequest('form_refresh') && $data['eventsource'] == EVENT_SOURCE_TRIGGERS) {
		$data['action']['conditions'] = array(
			array(
				'conditiontype' => CONDITION_TYPE_TRIGGER_VALUE,
				'operator' => CONDITION_OPERATOR_EQUAL,
				'value' => TRIGGER_VALUE_TRUE
			),
			array(
				'conditiontype' => CONDITION_TYPE_MAINTENANCE,
				'operator' => CONDITION_OPERATOR_NOT_IN,
				'value' => ''
			)
		);
	}

	$data['allowedConditions'] = get_conditions_by_eventsource($data['eventsource']);
	$data['allowedOperations'] = get_operations_by_eventsource($data['eventsource']);

	// sort conditions
	$sortFields = array(
		array('field' => 'conditiontype', 'order' => ZBX_SORT_DOWN),
		array('field' => 'operator', 'order' => ZBX_SORT_DOWN),
		array('field' => 'value', 'order' => ZBX_SORT_DOWN)
	);
	CArrayHelper::sort($data['action']['conditions'], $sortFields);

	// new condition
	$data['new_condition'] = array(
		'conditiontype' => isset($data['new_condition']['conditiontype']) ? $data['new_condition']['conditiontype'] : CONDITION_TYPE_TRIGGER_NAME,
		'operator' => isset($data['new_condition']['operator']) ? $data['new_condition']['operator'] : CONDITION_OPERATOR_LIKE,
		'value' => isset($data['new_condition']['value']) ? $data['new_condition']['value'] : ''
	);

	if (!str_in_array($data['new_condition']['conditiontype'], $data['allowedConditions'])) {
		$data['new_condition']['conditiontype'] = $data['allowedConditions'][0];
	}

	// new operation
	if (!empty($data['new_operation'])) {
		if (!is_array($data['new_operation'])) {
			$data['new_operation'] = array(
				'action' => 'create',
				'operationtype' => 0,
				'esc_period' => 0,
				'esc_step_from' => 1,
				'esc_step_to' => 1,
				'evaltype' => 0
			);
		}
	}

	// render view
	$actionView = new CView('configuration.action.edit', $data);
	$actionView->render();
	$actionView->show();
}
else {
	$data = array(
		'eventsource' => getRequest('eventsource', CProfile::get('web.actionconf.eventsource', EVENT_SOURCE_TRIGGERS)),
		'displayNodes' => is_array(get_current_nodeid())
	);

	$sortfield = getPageSortField('name');

	$data['actions'] = API::Action()->get(array(
		'output' => API_OUTPUT_EXTEND,
		'filter' => array('eventsource' => array($data['eventsource'])),
		'selectConditions' => API_OUTPUT_EXTEND,
		'selectOperations' => API_OUTPUT_EXTEND,
		'editable' => true,
		'sortfield' => $sortfield,
		'limit' => $config['search_limit'] + 1
	));

	// sorting && paging
	order_result($data['actions'], $sortfield, getPageSortOrder());
	$data['paging'] = getPagingLine($data['actions'], array('actionid'));

	// nodes
	if ($data['displayNodes']) {
		foreach ($data['actions'] as &$action) {
			$action['nodename'] = get_node_name_by_elid($action['actionid'], true);
		}
		unset($action);
	}

	// render view
	$actionView = new CView('configuration.action.list', $data);
	$actionView->render();
	$actionView->show();
}

require_once dirname(__FILE__).'/include/page_footer.php';
