/**
* Execute a block of code.
*
* @param string $code
* @param boolean $cache
* @param boolean $do_not_eval
* @return mixed
*/
protected static function coreEval(string $code, bool $cache = false, bool $do_not_eval = false)
{
\clearstatcache();
if ($do_not_eval || \Airship\is_disabled('eval')) {
if ($cache) {
if (!\file_exists(ROOT . "/tmp/cache/gear")) {
\mkdir(ROOT . "/tmp/cache/gear", 0777);
\clearstatcache();
}
$hashed = Base64UrlSafe::encode(CryptoUtil::raw_hash($code, 33));
if (!\file_exists(ROOT . '/tmp/cache/gear/' . $hashed . '.tmp.php')) {
\file_put_contents(ROOT . '/tmp/cache/gear/' . $hashed . '.tmp.php', '<?php' . "\n" . $code);
}
return self::sandboxRequire(ROOT . '/cache/' . $hashed . '.tmp.php');
} else {
if (!\file_exists(ROOT . '/tmp/gear')) {
\mkdir(ROOT . '/tmp/gear', 0777);
\clearstatcache();
}
$file = \Airship\tempnam('gear-', 'php', ROOT . '/tmp/gear');
\file_put_contents($file, '<?php' . "\n" . $code);
\clearstatcache();
$ret = self::sandboxRequire($file);
\unlink($file);
\clearstatcache();
return $ret;
}
} else {
return eval($code);
}
}
/**
* Download an update into a temp file
*
* @throws TransferException
* @param UpdateInfo $update
* @param string $apiEndpoint
* @return UpdateFile
*/
public function downloadUpdateFile(UpdateInfo $update, string $apiEndpoint = 'download') : UpdateFile
{
if ($this->localUpdateFile instanceof UpdateFile) {
$this->log('Local update file used', LogLevel::DEBUG);
return $this->localUpdateFile;
}
try {
$version = $update->getVersion();
$body = $this->hail->postReturnBody($update->getChannel() . API::get($apiEndpoint), ['type' => \get_class($this), 'supplier' => $update->getSupplierName(), 'package' => $update->getPackageName(), 'version' => $version]);
$outFile = \Airship\tempnam('airship-', $this->ext);
$saved = \file_put_contents($outFile, $body);
if ($saved !== false) {
// To prevent TOCTOU issues down the line
$hash = Util::hash($body);
$body = null;
\clearstatcache();
return new UpdateFile(['path' => $outFile, 'version' => $version, 'hash' => $hash, 'size' => \filesize($outFile)]);
}
// If we're still here...
throw new TransferException();
} catch (TransferException $ex) {
$this->log('Automatic update failure.', LogLevel::WARNING, ['exception' => \Airship\throwableToArray($ex), 'channel' => $update->getChannel()]);
// Rethrow it to prevent errors on return type
throw $ex;
}
}
/**
* Download the file from the update server.
*
* @param array $update
* @return InstallFile
* @throws TransferException
*/
public function download(array $update = []) : InstallFile
{
if ($this->localInstallFile instanceof InstallFile) {
self::$continuumLogger->store(LogLevel::DEBUG, 'Local install file used instead of downloading.', ['installFile' => ['hash' => $this->localInstallFile->getHash(), 'path' => $this->localInstallFile->getPath(), 'signature' => $this->localInstallFile->getSignature(), 'size' => $this->localInstallFile->getSize(), 'version' => $this->localInstallFile->getVersion()]]);
return $this->localInstallFile;
}
// If this was not supplied, we need to get it.
if (empty($update)) {
$update = $this->getPackageData();
}
$supplierName = $this->supplier->getName();
\uasort($update['versions'], function (array $a, array $b) : int {
return (int) ($a['version'] <=> $b['version']);
});
$data = \array_pop($update['versions']);
$version = $data['version'];
$body = $this->hail->postReturnBody($update['channel'] . API::get('download'), ['type' => \get_class($this), 'supplier' => $supplierName, 'package' => $this->package, 'version' => $version]);
$outFile = \Airship\tempnam('airship-', $this->ext);
$saved = \file_put_contents($outFile, $body);
if ($saved === false) {
throw new TransferException();
}
// To prevent TOCTOU issues down the line
$hash = Util::hash($body);
$body = null;
\clearstatcache();
return new InstallFile($this->supplier, ['data' => $data, 'hash' => $hash, 'path' => $outFile, 'size' => \filesize($outFile), 'type' => $this->type, 'version' => $version]);
}
/**
* @covers \Airship\tempnam()
*/
public function testTempNam()
{
$name = \Airship\tempnam();
$name2 = \Airship\tempnam('foo-');
$name3 = \Airship\tempnam('foo-', 'txt');
$this->assertFileNotExists($name);
$this->assertFileNotExists($name2);
$this->assertFileNotExists($name3);
$this->assertSame('foo-', Binary::safeSubstr(\Airship\path_to_filename($name3), 0, 4));
$this->assertSame('.txt', Binary::safeSubstr($name3, -4));
}
