libretime/airtime_mvc/application/upgrade/Upgrades.php

359 lines
12 KiB
PHP

<?php
class UpgradeManager
{
/** Used to determine if the database schema needs an upgrade in order for this version of the Airtime codebase to work correctly.
* @return array A list of schema versions that this version of the codebase supports.
*/
public static function getSupportedSchemaVersions()
{
//What versions of the schema does the code support today:
return array('2.5.2');
}
public static function checkIfUpgradeIsNeeded()
{
$schemaVersion = Application_Model_Preference::GetSchemaVersion();
$supportedSchemaVersions = self::getSupportedSchemaVersions();
$upgradeNeeded = !in_array($schemaVersion, $supportedSchemaVersions);
if ($upgradeNeeded) {
self::doUpgrade();
}
}
public static function doUpgrade()
{
$upgradeManager = new UpgradeManager();
$upgraders = array();
array_push($upgraders, new AirtimeUpgrader252());
/* These upgrades do not apply to open source Airtime yet.
array_push($upgraders, new AirtimeUpgrader253());
array_push($upgraders, new AirtimeUpgrader254());
*/
return $upgradeManager->runUpgrades(array(new AirtimeUpgrader252()), (dirname(__DIR__) . "/controllers"));
}
/**
* Run a given set of upgrades
*
* @param array $upgraders the upgrades to perform
* @param string $dir the directory containing the upgrade sql
* @return boolean whether or not an upgrade was performed
*/
public function runUpgrades($upgraders, $dir) {
$upgradePerformed = false;
for($i = 0; $i < count($upgraders); $i++) {
$upgrader = $upgraders[$i];
if ($upgrader->checkIfUpgradeSupported()) {
// pass the given directory to the upgrades, since __DIR__ returns parent dir of file, not executor
$upgrader->upgrade($dir); // This will throw an exception if the upgrade fails.
$upgradePerformed = true;
$i = 0; // Start over, in case the upgrade handlers are not in ascending order.
}
}
return $upgradePerformed;
}
}
abstract class AirtimeUpgrader
{
/** Schema versions that this upgrader class can upgrade from (an array of version strings). */
abstract protected function getSupportedSchemaVersions();
/** The schema version that this upgrader class will upgrade to. (returns a version string) */
abstract public function getNewVersion();
public static function getCurrentSchemaVersion()
{
CcPrefPeer::clearInstancePool(); //Ensure we don't get a cached Propel object (cached DB results)
//because we're updating this version number within this HTTP request as well.
//Old versions use system_version
$pref = CcPrefQuery::create()
->filterByKeystr('system_version')
->findOne();
if (empty($pref)) {
//New versions use schema_version
$pref = CcPrefQuery::create()
->filterByKeystr('schema_version')
->findOne();
}
$schema_version = $pref->getValStr();
return $schema_version;
}
/**
* This function checks to see if this class can perform an upgrade of your version of Airtime
* @return boolean True if we can upgrade your version of Airtime.
*/
public function checkIfUpgradeSupported()
{
if (!in_array(AirtimeUpgrader::getCurrentSchemaVersion(), $this->getSupportedSchemaVersions())) {
return false;
}
return true;
}
protected function toggleMaintenanceScreen($toggle)
{
if ($toggle)
{
//Disable Airtime UI
//create a temporary maintenance notification file
//when this file is on the server, zend framework redirects all
//requests to the maintenance page and sets a 503 response code
$this->maintenanceFile = isset($_SERVER['AIRTIME_BASE']) ? $_SERVER['AIRTIME_BASE']."maintenance.txt" : "/tmp/maintenance.txt";
$file = fopen($this->maintenanceFile, 'w');
fclose($file);
} else {
//delete maintenance.txt to give users access back to Airtime
if ($this->maintenanceFile) {
unlink($this->maintenanceFile);
}
}
}
/** Implement this for each new version of Airtime */
abstract public function upgrade();
}
/** This upgrade adds schema changes to accommodate show artwork and show instance descriptions */
class AirtimeUpgrader252 extends AirtimeUpgrader {
protected function getSupportedSchemaVersions() {
return array (
'2.5.1'
);
}
public function getNewVersion() {
return '2.5.2';
}
public function upgrade($dir = __DIR__) {
Cache::clear();
assert($this->checkIfUpgradeSupported());
$newVersion = $this->getNewVersion();
try {
$this->toggleMaintenanceScreen(true);
Cache::clear();
// Begin upgrade
$airtimeConf = isset($_SERVER['AIRTIME_CONF']) ? $_SERVER['AIRTIME_CONF'] : "/etc/airtime/airtime.conf";
$values = parse_ini_file($airtimeConf, true);
$username = $values['database']['dbuser'];
$password = $values['database']['dbpass'];
$host = $values['database']['host'];
$database = $values['database']['dbname'];
passthru("export PGPASSWORD=$password && psql -h $host -U $username -q -f $dir/upgrade_sql/airtime_"
.$this->getNewVersion()."/upgrade.sql $database 2>&1 | grep -v \"will create implicit index\"");
Application_Model_Preference::SetSchemaVersion($newVersion);
Cache::clear();
$this->toggleMaintenanceScreen(false);
return true;
} catch(Exception $e) {
$this->toggleMaintenanceScreen(false);
throw $e;
}
}
}
class AirtimeUpgrader253 extends AirtimeUpgrader
{
protected function getSupportedSchemaVersions()
{
return array('2.5.2');
}
public function getNewVersion()
{
return '2.5.3';
}
public function upgrade($dir = __DIR__)
{
Cache::clear();
assert($this->checkIfUpgradeSupported());
$con = Propel::getConnection();
$con->beginTransaction();
try {
$this->toggleMaintenanceScreen(true);
Cache::clear();
//Begin upgrade
//Update disk_usage value in cc_pref
$musicDir = CcMusicDirsQuery::create()
->filterByType('stor')
->filterByExists(true)
->findOne();
$storPath = $musicDir->getDirectory();
//Update disk_usage value in cc_pref
$storDir = isset($_SERVER['AIRTIME_BASE']) ? $_SERVER['AIRTIME_BASE']."srv/airtime/stor" : "/srv/airtime/stor";
$diskUsage = shell_exec("du -sb $storDir | awk '{print $1}'");
Application_Model_Preference::setDiskUsage($diskUsage);
//clear out the cache
Cache::clear();
$con->commit();
//update system_version in cc_pref and change some columns in cc_files
$airtimeConf = isset($_SERVER['AIRTIME_CONF']) ? $_SERVER['AIRTIME_CONF'] : "/etc/airtime/airtime.conf";
$values = parse_ini_file($airtimeConf, true);
$username = $values['database']['dbuser'];
$password = $values['database']['dbpass'];
$host = $values['database']['host'];
$database = $values['database']['dbname'];
passthru("export PGPASSWORD=$password && psql -h $host -U $username -q -f $dir/upgrade_sql/airtime_".$this->getNewVersion()."/upgrade.sql $database 2>&1 | grep -v \"will create implicit index\"");
Application_Model_Preference::SetSchemaVersion($this->getNewVersion());
//clear out the cache
Cache::clear();
$this->toggleMaintenanceScreen(false);
} catch (Exception $e) {
$con->rollback();
$this->toggleMaintenanceScreen(false);
}
}
}
class AirtimeUpgrader254 extends AirtimeUpgrader
{
protected function getSupportedSchemaVersions()
{
return array('2.5.3');
}
public function getNewVersion()
{
return '2.5.4';
}
public function upgrade()
{
Cache::clear();
assert($this->checkIfUpgradeSupported());
$newVersion = $this->getNewVersion();
$con = Propel::getConnection();
//$con->beginTransaction();
try {
$this->toggleMaintenanceScreen(true);
Cache::clear();
//Begin upgrade
//First, ensure there are no superadmins already.
$numberOfSuperAdmins = CcSubjsQuery::create()
->filterByDbType(UTYPE_SUPERADMIN)
->filterByDbLogin("sourcefabric_admin", Criteria::NOT_EQUAL) //Ignore sourcefabric_admin users
->count();
//Only create a super admin if there isn't one already.
if ($numberOfSuperAdmins == 0)
{
//Find the "admin" user and promote them to superadmin.
$adminUser = CcSubjsQuery::create()
->filterByDbLogin('admin')
->findOne();
if (!$adminUser)
{
//TODO: Otherwise get the user with the lowest ID that is of type administrator:
//
$adminUser = CcSubjsQuery::create()
->filterByDbType(UTYPE_ADMIN)
->orderByDbId(Criteria::ASC)
->findOne();
if (!$adminUser) {
throw new Exception("Failed to find any users of type 'admin' ('A').");
}
}
$adminUser = new Application_Model_User($adminUser->getDbId());
$adminUser->setType(UTYPE_SUPERADMIN);
$adminUser->save();
Logging::info($_SERVER['HTTP_HOST'] . ': ' . $newVersion . " Upgrade: Promoted user " . $adminUser->getLogin() . " to be a Super Admin.");
//Also try to promote the sourcefabric_admin user
$sofabAdminUser = CcSubjsQuery::create()
->filterByDbLogin('sourcefabric_admin')
->findOne();
if ($sofabAdminUser) {
$sofabAdminUser = new Application_Model_User($sofabAdminUser->getDbId());
$sofabAdminUser->setType(UTYPE_SUPERADMIN);
$sofabAdminUser->save();
Logging::info($_SERVER['HTTP_HOST'] . ': ' . $newVersion . " Upgrade: Promoted user " . $sofabAdminUser->getLogin() . " to be a Super Admin.");
}
}
//$con->commit();
Application_Model_Preference::SetSchemaVersion($newVersion);
Cache::clear();
$this->toggleMaintenanceScreen(false);
return true;
} catch(Exception $e) {
//$con->rollback();
$this->toggleMaintenanceScreen(false);
throw $e;
}
}
}
/* We are skipping 2.5.5 because it used to be the Show Artwork.
*
* DO NOT USE schema version 2.5.5!
*/
/** This is a stub. Please implement this 2.5.6 upgrader for the next schema change that we need.
* (It's setup to upgrade from 2.5.4 and 2.5.5 - this is a must due to the 2.5.5 schema being phase out. Long story...
*
*/
class AirtimeUpgrader256 extends AirtimeUpgrader {
protected function getSupportedSchemaVersions() {
return array (
'2.5.4', '2.5.5'
);
}
public function getNewVersion() {
return '2.5.6';
}
public function upgrade($dir = __DIR__) {
Cache::clear();
assert($this->checkIfUpgradeSupported());
$newVersion = $this->getNewVersion();
try {
//TODO: Implement this
return true;
} catch(Exception $e) {
$this->toggleMaintenanceScreen(false);
throw $e;
}
}
}