private function SendExecMessage(DBServer $DBServer, Event $Event, Scalr_Messaging_Msg $msg)
{
$c = $this->DB->GetOne("SELECT COUNT(*) FROM farm_role_scripts WHERE farmid=? AND event_name=?", array($Event->GetFarmID(), $Event->GetName()));
if ($c == 0) {
return;
}
$DBFarm = DBFarm::LoadByID($Event->GetFarmID());
$servers = $DBFarm->GetServersByFilter(array(), array('status' => SERVER_STATUS::TERMINATED));
foreach ($servers as $farmDBServer) {
// For some events we must sent trap to all instances include instance where ip adress changed.
// For other events we must exclude instance that fired event from trap list.
if ($DBServer && $DBServer->serverId == $farmDBServer->serverId) {
if (!in_array($Event->GetName(), array(EVENT_TYPE::INSTANCE_IP_ADDRESS_CHANGED, EVENT_TYPE::EBS_VOLUME_MOUNTED, EVENT_TYPE::BEFORE_INSTANCE_LAUNCH, EVENT_TYPE::BEFORE_HOST_TERMINATE))) {
continue;
}
}
if (!$farmDBServer->IsSupported("0.5")) {
$farmDBServer->SendMessage($msg, true);
}
}
}
private function sendPromoteToMasterMessage(Event $event)
{
if ($event->DBServer->GetProperty(Scalr_Db_Msr::REPLICATION_MASTER) || $event->DBServer->GetFarmRoleObject()->GetSetting(Scalr_Db_Msr::SLAVE_TO_MASTER)) {
//Check if master already running: do not send promote_to_master
$msg = new Scalr_Messaging_Msg_DbMsr_PromoteToMaster();
$msg->tmpEventName = $event->GetName();
$msg->dbType = $event->DBServer->GetFarmRoleObject()->GetRoleObject()->getDbMsrBehavior();
$msg->cloudLocation = $event->DBServer->GetCloudLocation();
if (in_array($event->DBServer->platform, array(SERVER_PLATFORMS::EC2, SERVER_PLATFORMS::CLOUDSTACK, SERVER_PLATFORMS::IDCF, SERVER_PLATFORMS::UCLOUD))) {
try {
$volume = Scalr_Storage_Volume::init()->loadById($event->DBServer->GetFarmRoleObject()->GetSetting(Scalr_Db_Msr::VOLUME_ID));
$msg->volumeConfig = $volume->getConfig();
} catch (Exception $e) {
$this->Logger->error(new FarmLogMessage($event->DBServer->farmId, "Cannot create volumeConfig for PromoteToMaster message: {$e->getMessage()}"));
}
}
if ($event->DBServer->farmRoleId != 0) {
foreach (Scalr_Role_Behavior::getListForRole(DBRole::loadById($event->DBServer->roleId)) as $behavior) {
$msg = $behavior->extendMessage($msg, $event->DBServer);
}
}
// Send Mysql_PromoteToMaster to the first server in the same avail zone as old master (if exists)
// Otherwise send to first in role
$platform = $event->DBServer->platform;
if ($platform == SERVER_PLATFORMS::EC2) {
$availZone = $event->DBServer->GetProperty(EC2_SERVER_PROPERTIES::AVAIL_ZONE);
}
$dbFarmRole = $event->DBServer->GetFarmRoleObject();
$servers = $dbFarmRole->GetServersByFilter(array('status' => array(SERVER_STATUS::RUNNING)));
$firstInRoleServer = false;
foreach ($servers as $DBServer) {
if ($DBServer->serverId == $event->DBServer->serverId) {
continue;
}
if (!$firstInRoleServer) {
$firstInRoleServer = $DBServer;
}
if ($platform == SERVER_PLATFORMS::EC2 && $DBServer->GetProperty(EC2_SERVER_PROPERTIES::AVAIL_ZONE) == $availZone || $platform != SERVER_PLATFORMS::EC2) {
$event->DBServer->SetProperty(Scalr_Db_Msr::REPLICATION_MASTER, 0);
$dbFarmRole->SetSetting(Scalr_Db_Msr::SLAVE_TO_MASTER, 1);
$DBServer->SetProperty(Scalr_Db_Msr::REPLICATION_MASTER, 1);
$DBServer->SendMessage($msg, false, true);
return;
}
}
if ($firstInRoleServer) {
$dbFarmRole->SetSetting(Scalr_Db_Msr::SLAVE_TO_MASTER, 1);
$firstInRoleServer->SetProperty(Scalr_Db_Msr::REPLICATION_MASTER, 1);
$firstInRoleServer->SendMessage($msg, false, true);
}
}
}
/**
* Store event in database
*
* @param integer $farmid
* @param string $event_name
*/
public static function StoreEvent($farmid, Event $event, $eventTime = null)
{
if ($event->DBServer) {
$eventServerId = $event->DBServer->serverId;
}
try {
$DB = self::getDb();
// Generate event message
$message = $event->getTextDetails();
//short_message temporary used for time tracking
// Store event in database
$DB->Execute("INSERT INTO events SET\n farmid\t= ?,\n type\t= ?,\n dtadded\t= NOW(),\n message\t= ?,\n event_object = '',\n event_id\t = ?,\n event_server_id = ?,\n short_message = ?,\n msg_expected = ?,\n msg_created = ?,\n scripts_total = ?,\n is_suspend = ?", array($farmid, $event->GetName(), $message, $event->GetEventID(), $eventServerId, $eventTime, $event->msgExpected, $event->msgCreated, $event->scriptsCount, $event->isSuspended ? 1 : 0));
} catch (Exception $e) {
Logger::getLogger(__CLASS__)->fatal(sprintf(_("Cannot store event in database: %s"), $e->getMessage()));
}
try {
if ($eventServerId) {
$dbServer = DBServer::LoadByID($eventServerId);
if (!$dbServer->farmRoleId) {
return true;
}
$dt = new DateTime('now', new DateTimeZone("UTC"));
$timestamp = $dt->format("D d M Y H:i:s e");
$payload = new stdClass();
$payload->eventName = $event->GetName();
$payload->eventId = $event->GetEventID();
$payload->timestamp = $timestamp;
$globalVars = Scalr_Scripting_GlobalVariables::listServerGlobalVariables($dbServer, true, $event);
$webhooks = WebhookConfig::findByEvent($event->GetName(), $farmid, $dbServer->clientId, $dbServer->envId);
$count = 0;
foreach ($webhooks as $webhook) {
/* @var $webhook \Scalr\Model\Entity\WebhookConfig */
$payload->configurationId = $webhook->webhookId;
$payload->data = array();
$variables = [];
foreach ($globalVars as $gv) {
$variables[$gv->name] = $gv->value;
if ($gv->private && $webhook->skipPrivateGv == 1 && !$gv->system) {
continue;
}
$payload->data[$gv->name] = $gv->value;
}
if ($webhook->postData) {
//Parse variable
$keys = array_keys($variables);
$f = create_function('$item', 'return "{".$item."}";');
$keys = array_map($f, $keys);
$values = array_values($variables);
// Strip undefined variables & return value
$payload->userData = preg_replace("/{[A-Za-z0-9_-]+}/", "", str_replace($keys, $values, $webhook->postData));
} else {
$payload->userData = '';
}
foreach ($webhook->getEndpoints() as $ce) {
/* @var $ce \Scalr\Model\Entity\WebhookConfigEndpoint */
$endpoint = $ce->getEndpoint();
if (!$endpoint->isValid) {
continue;
}
$payload->endpointId = $endpoint->endpointId;
$encPayload = json_encode($payload);
$history = new WebhookHistory();
$history->eventId = $event->GetEventID();
$history->eventType = $event->GetName();
$history->payload = $encPayload;
$history->serverId = $event->DBServer ? $event->DBServer->serverId : null;
$history->endpointId = $endpoint->endpointId;
$history->webhookId = $webhook->webhookId;
$history->farmId = $farmid;
$history->save();
$count++;
}
}
if ($count != 0) {
$DB->Execute("UPDATE events SET wh_total = ? WHERE event_id = ?", array($count, $event->GetEventID()));
}
}
} catch (Exception $e) {
Logger::getLogger(__CLASS__)->fatal(sprintf(_("WebHooks: %s"), $e->getMessage()));
}
}
/**
* Store event in database
*
* @param integer $farmid
* @param string $event_name
*/
public static function StoreEvent($farmid, Event $event)
{
if ($event->SkipDeferredOperations) {
return true;
}
try {
$DB = Core::GetDBInstance();
// Get Smarty object
$Smarty = Core::GetSmartyInstance();
// Assign vars
$Smarty->assign(array("event" => $event));
// Generate event message
if (file_exists(CF_TEMPLATES_PATH . "/event_messages/{$event->GetName()}.tpl")) {
$message = $Smarty->fetch("event_messages/{$event->GetName()}.tpl");
$short_message = $Smarty->fetch("event_messages/{$event->GetName()}.short.tpl");
// Store event in database
$DB->Execute("INSERT INTO events SET \r\n\t\t\t\t\t\tfarmid\t= ?, \r\n\t\t\t\t\t\ttype\t= ?, \r\n\t\t\t\t\t\tdtadded\t= NOW(),\r\n\t\t\t\t\t\tmessage\t= ?,\r\n\t\t\t\t\t\tshort_message = ?, \r\n\t\t\t\t\t\tevent_object = ?,\r\n\t\t\t\t\t\tevent_id\t = ?\r\n\t\t\t\t\t\t", array($farmid, $event->GetName(), $message, $short_message, serialize($event), $event->GetEventID()));
$eventid = $DB->Insert_ID();
// Add task for fire deferred event
TaskQueue::Attach(QUEUE_NAME::DEFERRED_EVENTS)->AppendTask(new FireDeferredEventTask($eventid));
} else {
Logger::getLogger(__CLASS__)->warn(sprintf(_("Cannot store event in database: '{$event->GetName()}' message template not found")));
}
} catch (Exception $e) {
Logger::getLogger(__CLASS__)->fatal(sprintf(_("Cannot store event in database: %s"), $e->getMessage()));
}
}
/**
* File event in database
*
* @param integer $farmid
* @param string $event_name
*/
public static function FireEvent($farmid, Event $event)
{
if (!self::$observersSetuped) {
self::setupObservers();
}
$startTime = microtime(true);
try {
$event->SetFarmID($farmid);
$handledObservers = array();
// Notify class observers
foreach (self::$EventObservers as $observer) {
$observerStartTime = microtime(true);
$observer->SetFarmID($farmid);
Logger::getLogger(__CLASS__)->info(sprintf("Event %s. Observer: %s", "On{$event->GetName()}", get_class($observer)));
if ($event instanceof CustomEvent) {
call_user_func(array($observer, "OnCustomEvent"), $event);
} else {
call_user_func(array($observer, "On{$event->GetName()}"), $event);
}
$handledObservers[get_class($observer)] = microtime(true) - $observerStartTime;
}
} catch (Exception $e) {
Logger::getLogger(__CLASS__)->fatal(sprintf("Exception thrown in Scalr::FireEvent(%s:%s, %s:%s): %s", @get_class($observer), $event->GetName(), $e->getFile(), $e->getLine(), $e->getMessage()));
throw new Exception($e->getMessage());
}
$event->handledObservers = $handledObservers;
self::StoreEvent($farmid, $event, microtime(true) - $startTime);
}
public static function getEventScriptList(Event $event, DBServer $eventServer, DBServer $targetServer)
{
$db = \Scalr::getDb();
$accountScripts = $db->GetAll("SELECT * FROM account_scripts WHERE (event_name=? OR event_name='*') AND account_id=?", array($event->GetName(), $eventServer->clientId));
$roleScripts = $db->GetAll("SELECT * FROM role_scripts WHERE (event_name=? OR event_name='*') AND role_id=?", array($event->GetName(), $eventServer->roleId));
$scripts = $db->GetAll("SELECT *, `script_type` as `type` FROM farm_role_scripts WHERE (event_name=? OR event_name='*') AND farmid=?", array($event->GetName(), $eventServer->farmId));
foreach ($accountScripts as $script) {
$scripts[] = array("id" => "a{$script['id']}", "type" => $script['script_type'], "scriptid" => $script['script_id'], "params" => $script['params'], "event_name" => $event->GetName(), "target" => $script['target'], "version" => $script['version'], "timeout" => $script['timeout'], "issync" => $script['issync'], "order_index" => $script['order_index'], "scope" => "account", 'script_path' => $script['script_path'], 'run_as' => $script['run_as'], 'script_type' => $script['script_type']);
}
foreach ($roleScripts as $script) {
$params = $db->GetOne("SELECT params FROM farm_role_scripting_params WHERE farm_role_id = ? AND `hash` = ? AND farm_role_script_id = '0' LIMIT 1", array($eventServer->farmRoleId, $script['hash']));
if ($params) {
$script['params'] = $params;
}
$scripts[] = array("id" => "r{$script['id']}", "scriptid" => $script['script_id'], "type" => $script['script_type'], "params" => $script['params'], "event_name" => $event->GetName(), "target" => $script['target'], "version" => $script['version'], "timeout" => $script['timeout'], "issync" => $script['issync'], "order_index" => $script['order_index'], "scope" => "role", 'script_path' => $script['script_path'], 'run_as' => $script['run_as'], 'script_type' => $script['script_type']);
}
$retval = array();
foreach ($scripts as $scriptSettings) {
$scriptSettings['order_index'] = (double) $scriptSettings['order_index'];
// If target set to that instance only
if ($scriptSettings['target'] == Script::TARGET_INSTANCE && $eventServer->serverId != $targetServer->serverId) {
continue;
}
// If target set to all instances in specific role
if ($scriptSettings['target'] == Script::TARGET_ROLE && $eventServer->farmRoleId != $targetServer->farmRoleId) {
continue;
}
if (!$scriptSettings['scope']) {
// Validate that event was triggered on the same farmRoleId as script
if ($eventServer->farmRoleId != $scriptSettings['farm_roleid']) {
continue;
}
// Validate that target server has the same farmRoleId as event server with target ROLE
if ($scriptSettings['target'] == Script::TARGET_ROLE && $targetServer->farmRoleId != $scriptSettings['farm_roleid']) {
continue;
}
}
if ($scriptSettings['target'] == Script::TARGET_ROLES || $scriptSettings['target'] == Script::TARGET_BEHAVIORS) {
if ($scriptSettings['scope'] != 'role') {
$targets = $db->GetAll("SELECT * FROM farm_role_scripting_targets WHERE farm_role_script_id = ?", array($scriptSettings['id']));
} else {
$targets = array();
}
$execute = false;
foreach ($targets as $target) {
switch ($target['target_type']) {
case "farmrole":
if ($targetServer->farmRoleId == $target['target']) {
$execute = true;
}
break;
case "behavior":
if ($targetServer->GetFarmRoleObject()->GetRoleObject()->hasBehavior($target['target'])) {
$execute = true;
}
break;
}
}
if (!$execute) {
continue;
}
}
if ($scriptSettings['target'] == "" || $scriptSettings['id'] == "") {
continue;
}
$script = self::prepareScript($scriptSettings, $targetServer, $event);
if ($script) {
while (true) {
$index = (string) $scriptSettings['order_index'];
if (!$retval[$index]) {
$retval[$index] = $script;
break;
} else {
$scriptSettings['order_index'] += 0.01;
}
}
}
}
@ksort($retval);
return $retval;
}
public static function listServerGlobalVariables(DBServer $dbServer, $includeSystem = false, Event $event = null)
{
$retval = array();
if ($includeSystem) {
$variables = $dbServer->GetScriptingVars();
if ($event) {
if ($event->DBServer) {
foreach ($event->DBServer->GetScriptingVars() as $k => $v) {
$variables["event_{$k}"] = $v;
}
}
foreach ($event->GetScriptingVars() as $k => $v) {
$variables[$k] = $event->{$v};
}
if (isset($event->params) && is_array($event->params)) {
foreach ($event->params as $k => $v) {
$variables[$k] = $v;
}
}
$variables['event_name'] = $event->GetName();
}
$formats = \Scalr::config("scalr.system.global_variables.format");
foreach ($variables as $name => $value) {
$name = "SCALR_" . strtoupper($name);
$value = trim($value);
if (isset($formats[$name])) {
$value = @sprintf($formats[$name], $value);
}
$private = strpos($name, 'SCALR_EVENT_') === 0 ? 1 : 0;
$retval[] = (object) array('name' => $name, 'value' => $value, 'private' => $private, 'system' => 1);
}
}
try {
$globalVariables = new Scalr_Scripting_GlobalVariables($dbServer->GetEnvironmentObject()->clientId, $dbServer->envId, Scalr_Scripting_GlobalVariables::SCOPE_SERVER);
$vars = $globalVariables->listVariables($dbServer->GetFarmRoleObject()->RoleID, $dbServer->farmId, $dbServer->farmRoleId, $dbServer->serverId);
foreach ($vars as $v) {
$retval[] = (object) $v;
}
} catch (Exception $e) {
}
return $retval;
}
public static function getEventScriptList(Event $event, DBServer $eventServer, DBServer $targetServer)
{
$db = Core::GetDBInstance();
$roleScripts = $db->GetAll("SELECT * FROM role_scripts WHERE event_name=? AND role_id=? ORDER BY order_index ASC", array($event->GetName(), $eventServer->roleId));
$scripts = $db->GetAll("SELECT * FROM farm_role_scripts WHERE event_name=? AND farmid=? ORDER BY order_index ASC", array($event->GetName(), $eventServer->farmId));
foreach ($roleScripts as $script) {
$scripts[] = array("id" => "r{$script['id']}", "scriptid" => $script['script_id'], "params" => $script['params'], "event_name" => $script['event_name'], "target" => $script['target'], "version" => $script['version'], "timeout" => $script['timeout'], "issync" => $script['issync'], "order_index" => $script['order_index'], "type" => "role");
}
$retval = array();
foreach ($scripts as $scriptSettings) {
$scriptSettings['order_index'] = (double) $scriptSettings['order_index'];
if ($scriptSettings['target'] == SCRIPTING_TARGET::INSTANCE && $eventServer->serverId != $targetServer->serverId) {
continue;
}
if ($scriptSettings['target'] == SCRIPTING_TARGET::ROLE && $eventServer->farmRoleId != $targetServer->farmRoleId) {
continue;
}
if ($scriptSettings['target'] == SCRIPTING_TARGET::FARM && $eventServer->farmRoleId != $scriptSettings['farm_roleid']) {
continue;
}
if ($scriptSettings['type'] != 'role' && $scriptSettings['target'] != SCRIPTING_TARGET::FARM && $targetServer->farmRoleId != $scriptSettings['farm_roleid']) {
continue;
}
if ($scriptSettings['target'] == "" || $scriptSettings['id'] == "") {
continue;
}
$script = self::prepareScript($scriptSettings, $targetServer, $event);
if ($script) {
while (true) {
$index = (string) $scriptSettings['order_index'];
if (!$retval[$index]) {
$retval[$index] = $script;
break;
} else {
$scriptSettings['order_index'] += 0.01;
}
}
}
}
@ksort($retval);
return $retval;
}