MISP/app/Model/Module.php

471 lines
18 KiB
PHP

<?php
App::uses('AppModel', 'Model');
App::uses('JsonTool', 'Tools');
class Module extends AppModel
{
public $useTable = false;
private $__validTypes = array(
'Enrichment' => array('hover', 'expansion'),
'Import' => array('import'),
'Export' => array('export'),
'Action' => array('action'),
'Cortex' => array('cortex')
);
private $__typeToFamily = array(
'Import' => 'Import',
'Export' => 'Export',
'Action' => 'Action',
'hover' => 'Enrichment',
'expansion' => 'Enrichment',
'Cortex' => 'Cortex'
);
public $configTypes = array(
'IP' => array(
'validation' => 'validateIPField',
'field' => 'text',
'class' => 'input-xxlarge'
),
'String' => array(
'validation' => 'validateStringField',
'field' => 'text',
'class' => 'input-xxlarge'
),
'Integer' => array(
'validation' => 'validateIntegerField',
'field' => 'number',
),
'Boolean' => array(
'validation' => 'validateBooleanField',
'field' => 'checkbox'
),
'Select' => array(
'validation' => 'validateSelectField',
'field' => 'select'
)
);
public function validateIPField($value)
{
if (!filter_var($value, FILTER_VALIDATE_IP) === false) {
return 'Value is not a valid IP.';
}
return true;
}
public function validateStringField($value)
{
if (!empty($value)) {
return true;
}
return 'Field cannot be empty.';
}
public function validateIntegerField($value)
{
if (is_numeric($value) && is_int(intval($value))) {
return true;
}
return 'Value is not an integer.';
}
public function validateBooleanField($value)
{
if ($value == true || $value == false) {
return true;
}
return 'Value has to be a boolean.';
}
public function validateSelectField($value)
{
return true;
}
/**
* @param string $moduleFamily
* @param bool $throwException
* @return array[]|string
* @throws JsonException
*/
public function getModules($moduleFamily = 'Enrichment', $throwException = false)
{
try {
// Wait just one second to not block loading pages when modules are not reachable
return $this->sendRequest('/modules', 1, null, $moduleFamily);
} catch (Exception $e) {
if ($throwException) {
throw $e;
}
return 'Module service not reachable.';
}
}
public function getEnabledModules($user, $type = false, $moduleFamily = 'Enrichment')
{
$modules = $this->getModules($moduleFamily);
if (is_array($modules)) {
foreach ($modules as $k => $module) {
if (!Configure::read('Plugin.' . $moduleFamily . '_' . $module['name'] . '_enabled') || ($type && !in_array(strtolower($type), $module['meta']['module-type']))) {
unset($modules[$k]);
continue;
}
if (
!$user['Role']['perm_site_admin'] &&
Configure::read('Plugin.' . $moduleFamily . '_' . $module['name'] . '_restrict') &&
Configure::read('Plugin.' . $moduleFamily . '_' . $module['name'] . '_restrict') != $user['org_id']
) {
unset($modules[$k]);
}
}
} else {
return 'The modules system reports that it found no suitable modules.';
}
if (empty($modules)) {
return [];
}
$output = ['modules' => array_values($modules)];
foreach ($modules as $temp) {
if (isset($temp['meta']['module-type']) && in_array('import', $temp['meta']['module-type'])) {
$output['Import'] = $temp['name'];
} elseif (isset($temp['meta']['module-type']) && in_array('export', $temp['meta']['module-type'])) {
$output['Export'] = $temp['name'];
} elseif (isset($temp['meta']['module-type']) && in_array('action', $temp['meta']['module-type'])) {
$output['Action'] = $temp['name'];
} else {
foreach ($temp['mispattributes']['input'] as $input) {
if (!isset($temp['meta']['module-type']) || (in_array('expansion', $temp['meta']['module-type']) || in_array('cortex', $temp['meta']['module-type']))) {
$output['types'][$input][] = $temp['name'];
}
if (isset($temp['meta']['module-type']) && in_array('hover', $temp['meta']['module-type'])) {
$output['hover_type'][$input][] = $temp['name'];
}
}
}
}
return $output;
}
/**
* @param string $name
* @param string $type
* @return array|string
*/
public function getEnabledModule($name, $type)
{
if (!isset($this->__typeToFamily[$type])) {
throw new InvalidArgumentException("Invalid type '$type'.");
}
$moduleFamily = $this->__typeToFamily[$type];
$modules = $this->getModules($moduleFamily);
if (!Configure::read('Plugin.' . $moduleFamily . '_' . $name . '_enabled')) {
return 'The requested module is not enabled.';
}
if (is_array($modules)) {
foreach ($modules as $module) {
if ($module['name'] == $name) {
if ($type && in_array(strtolower($type), $module['meta']['module-type'])) {
return $module;
} else {
return 'The requested module is not available for the requested action.';
}
}
}
} else {
return $modules;
}
return 'The modules system reports that it found no suitable modules.';
}
private function __getModuleServer($moduleFamily = 'Enrichment')
{
if (!Configure::read('Plugin.' . $moduleFamily . '_services_enable')) {
return false;
}
$url = Configure::read('Plugin.' . $moduleFamily . '_services_url');
$port = Configure::read('Plugin.' . $moduleFamily . '_services_port');
if (empty($url) || empty($port)) {
// Load default values
$this->Server = ClassRegistry::init('Server');
if (empty($url)) {
$url = $this->Server->serverSettings['Plugin'][$moduleFamily . '_services_url']['value'];
}
if (empty($port)) {
$port = $this->Server->serverSettings['Plugin'][$moduleFamily . '_services_port']['value'];
}
}
return "$url:$port";
}
private function __prepareAndExectureForTrigger($postData, $triggerData): bool
{
$this->Workflow = ClassRegistry::init('Workflow');
$trigger_id = 'enrichment-before-query';
$workflowErrors = [];
$logging = [
'model' => 'Workflow',
'action' => 'execute_workflow',
'id' => 0,
'message' => __('The workflow `%s` prevented event `%s` to query the module `%s`', $trigger_id, $postData['event_id'], $postData['module']),
];
if (empty($triggerData) && $this->Workflow->isTriggerCallable($trigger_id) && !empty($postData['attribute_uuid'])) {
$this->User = ClassRegistry::init('User');
$this->Attribute = ClassRegistry::init('Attribute');
$user = $this->User->getAuthUser(Configure::read('CurrentUserId'), true);
$options = [
'conditions' => [
'Attribute.uuid' => $postData['attribute_uuid'],
],
'includeAllTags' => true,
'includeAttributeUuid' => true,
'flatten' => true,
'deleted' => [0, 1],
'withAttachments' => true,
];
$attributes = $this->Attribute->fetchAttributes($user, $options);
$triggerData = !empty($attributes) ? $attributes[0] : [];
$logging['message'] = __('The workflow `%s` prevented attribute `%s` (from event `%s`) to query the module `%s`', $trigger_id, $postData['attribute_uuid'], $postData['event_id'], $postData['module']);
}
if (empty($triggerData)) {
return false;
}
$success = $this->executeTrigger($trigger_id, $triggerData, $workflowErrors, $logging);
return !empty($success);
}
/**
* Send request to `/query` module endpoint.
*
* @param array $postData
* @param bool $hover
* @param string $moduleFamily
* @param bool $throwException
* @return array|false
* @throws JsonException
*/
public function queryModuleServer(array $postData, $hover = false, $moduleFamily = 'Enrichment', $throwException = false, $triggerData=[])
{
if ($moduleFamily == 'Enrichment') {
$success = $this->__prepareAndExectureForTrigger($postData, $triggerData);
if (!$success) {
return false;
}
}
if ($hover) {
$timeout = Configure::read('Plugin.' . $moduleFamily . '_hover_timeout') ?: 5;
} else {
$timeout = Configure::read('Plugin.' . $moduleFamily . '_timeout') ?: 10;
}
try {
return $this->sendRequest('/query', $timeout, $postData, $moduleFamily);
} catch (Exception $e) {
if ($throwException) {
throw $e;
}
$this->logException('Failed to query module ' . $moduleFamily, $e);
return false;
}
}
/**
* Low-level way how to send request to module.
*
* @param string $uri
* @param int $timeout
* @param array|null $postData
* @param string $moduleFamily
* @return array
* @throws HttpSocketJsonException
* @throws Exception
*/
public function sendRequest($uri, $timeout, $postData = null, $moduleFamily = 'Enrichment')
{
$serverUrl = $this->__getModuleServer($moduleFamily);
if (!$serverUrl) {
throw new Exception("Module type $moduleFamily is not enabled.");
}
App::uses('HttpSocketExtended', 'Tools');
$httpSocketSetting = ['timeout' => $timeout];
$sslSettings = array('ssl_verify_peer', 'ssl_verify_host', 'ssl_allow_self_signed', 'ssl_verify_peer', 'ssl_cafile');
foreach ($sslSettings as $sslSetting) {
$value = Configure::read('Plugin.' . $moduleFamily . '_' . $sslSetting);
if ($value && $value !== '') {
$httpSocketSetting[$sslSetting] = $value;
}
}
$httpSocket = new HttpSocketExtended($httpSocketSetting);
$request = [];
if ($moduleFamily === 'Cortex') {
if (!empty(Configure::read('Plugin.' . $moduleFamily . '_authkey'))) {
$request['header']['Authorization'] = 'Bearer ' . Configure::read('Plugin.' . $moduleFamily . '_authkey');
}
}
if ($postData) {
if (!is_array($postData)) {
throw new InvalidArgumentException("Post data must be array, " . gettype($postData) . " given.");
}
$post = JsonTool::encode($postData);
$request['header']['Content-Type'] = 'application/json';
$response = $httpSocket->post($serverUrl . $uri, $post, $request);
} else {
$response = $httpSocket->get($serverUrl . $uri, false, $request);
}
if (!$response->isOk()) {
$e = new HttpSocketHttpException($response, $serverUrl . $uri);
throw new Exception("Failed to get response from `$moduleFamily` module", 0, $e);
}
return $response->json();
}
/**
* @param string $moduleFamily
* @return array
* @throws JsonException
*/
public function getModuleSettings($moduleFamily = 'Enrichment')
{
$modules = $this->getModules($moduleFamily);
$result = array();
if (is_array($modules)) {
foreach ($modules as $module) {
if (array_intersect($this->__validTypes[$moduleFamily], $module['meta']['module-type'])) {
$moduleSettings = [
[
'name' => 'enabled',
'type' => 'boolean',
'description' => empty($module['meta']['description']) ? '' : $module['meta']['description']
]
];
if ($moduleFamily !== 'Action') {
$moduleSettings[] = [
'name' => 'restrict',
'type' => 'orgs',
'description' => __('Restrict the use of this module to an organisation.')
];
if (isset($module['meta']['config'])) {
foreach ($module['meta']['config'] as $key => $value) {
if (is_array($value)) {
$name = is_string($key) ? $key : $value['name'];
$moduleSettings[] = [
'name' => $name,
'type' => isset($value['type']) ? $value['type'] : 'string',
'test' => isset($value['test']) ? $value['test'] : null,
'description' => isset($value['description']) ? $value['description'] : null,
'null' => isset($value['null']) ? $value['null'] : null,
'test' => isset($value['test']) ? $value['test'] : null,
'bigField' => isset($value['bigField']) ? $value['bigField'] : false,
'cli_only' => isset($value['cli_only']) ? $value['cli_only'] : false,
'redacted' => isset($value['redacted']) ? $value['redacted'] : false
];
} else if (is_string($key)) {
$moduleSettings[] = [
'name' => $key,
'type' => 'string',
'description' => $value
];
} else {
$moduleSettings[] = array('name' => $value, 'type' => 'string');
}
}
}
}
$result[$module['name']] = $moduleSettings;
}
}
}
return $result;
}
public function executeActions($type, $user, $input, $logData, &$error = null)
{
$modules = $this->getEnabledModules($user, null, $moduleFamily = 'Action');
$sorted_modules = [];
if (empty($modules) || !is_array($modules)) {
return true;
}
foreach ($modules['modules'] as $k => &$module) {
if (!in_array($type, $module['mispattributes']['hooks'])) {
//unset($modules['modules'][$k]);
continue;
}
$settingPath = 'Plugin.' . $module['name'] . '_';
$module['weight'] = Configure::check($settingPath . 'weight') ? Configure::read($settingPath . 'weight') : 0;
$module['filters'] = Configure::check($settingPath . 'filters') ? json_decode(Configure::read($settingPath . 'filters'), true) : [];
foreach ($module['meta']['config'] as $settingName => $settingData) {
$module['config'][$settingName] = Configure::check($settingPath . $settingName) ? Configure::read($settingPath . $settingName) : $settingData['value'];
}
$sorted_modules[$module['weight']][] = $module;
}
krsort($sorted_modules);
foreach ($sorted_modules as $weight => $modules) {
foreach ($modules as $module) {
$data = [
'module' => $module['name'],
'config' => empty($module['config']) ? [] : $module['config'],
'data' => $input
];
if (empty($module['mispattributes']['blocking'])) {
$this->enqueueAction($data, $user);
return true;
} else {
$result = $this->executeAction($data);
if (empty($result['data']) || !empty($result['error'])) {
$error = empty($result['error']) ? __('Execution failed for module %s.', $module['name']) : $result['error'];
return false;
}
}
}
}
return true;
}
public function enqueueAction($data, $user)
{
/** @var Job $job */
$job = ClassRegistry::init('Job');
$jobId = $job->createJob($user, Job::WORKER_PRIO, 'execute_action_module', 'Module: ' . $data["module"], 'Executing...');
$args = [
'execute_action_module',
$user['id'],
$data,
$jobId
];
$this->getBackgroundJobsTool()->enqueue(
BackgroundJobsTool::PRIO_QUEUE,
BackgroundJobsTool::CMD_MODULE,
$args,
true,
$jobId
);
return true;
}
public function executeAction($data)
{
$result = $this->queryModuleServer($data, false, 'Action');
if (!empty($result['error'])) {
$this->loadLog()->createLogEntry(
'SYSTEM',
'warning',
empty($logData['model']) ? 'Module' : $logData['model'],
empty($logData['id']) ? 0 : $logData['id'],
sprintf(
'Executing %s action module on failed.',
$type
),
sprintf(
'Returned error: %s',
$result['error']
)
);
}
return $result;
}
}