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index.php
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index.php
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<?php
/**
* @copyright Copyright (c) 2016-2017 Lukas Reschke <lukas@statuscode.ch>
* @copyright Copyright (c) 2016 Morris Jobke <hey@morrisjobke.de>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
class UpdateException extends \Exception {
protected $data;
public function __construct($data) {
$this->data = $data;
}
public function getData() {
return $this->data;
}
}
class LogException extends \Exception {
}
class RecursiveDirectoryIteratorWithoutData extends \RecursiveFilterIterator {
public function accept() {
/** @var \DirectoryIterator $this */
$excludes = [
'data',
'..',
];
return !(in_array($this->getFilename(), $excludes, true) || $this->isDir());
}
}
class Auth {
/** @var Updater */
private $updater;
/** @var string */
private $password;
/**
* @param Updater $updater
* @param string $password
*/
public function __construct(Updater $updater,
$password) {
$this->updater = $updater;
$this->password = $password;
}
/**
* Compares two strings.
*
* This method implements a constant-time algorithm to compare strings.
* Regardless of the used implementation, it will leak length information.
*
* @param string $knownString The string of known length to compare against
* @param string $userInput The string that the user can control
*
* @return bool true if the two strings are the same, false otherwise
* @license MIT
* @source https://github.com/symfony/security-core/blob/56721d5f5f63da7e08d05aa7668a5a9ef2367e1e/Util/StringUtils.php
*/
private static function equals($knownString, $userInput) {
// Avoid making unnecessary duplications of secret data
if (!is_string($knownString)) {
$knownString = (string) $knownString;
}
if (!is_string($userInput)) {
$userInput = (string) $userInput;
}
if (function_exists('hash_equals')) {
return hash_equals($knownString, $userInput);
}
$knownLen = self::safeStrlen($knownString);
$userLen = self::safeStrlen($userInput);
if ($userLen !== $knownLen) {
return false;
}
$result = 0;
for ($i = 0; $i < $knownLen; ++$i) {
$result |= (ord($knownString[$i]) ^ ord($userInput[$i]));
}
// They are only identical strings if $result is exactly 0...
return 0 === $result;
}
/**
* Returns the number of bytes in a string.
*
* @param string $string The string whose length we wish to obtain
*
* @return int
* @license MIT
* @source https://github.com/symfony/security-core/blob/56721d5f5f63da7e08d05aa7668a5a9ef2367e1e/Util/StringUtils.php
*/
private static function safeStrlen($string) {
// Premature optimization
// Since this cannot be changed at runtime, we can cache it
static $funcExists = null;
if (null === $funcExists) {
$funcExists = function_exists('mb_strlen');
}
if ($funcExists) {
return mb_strlen($string, '8bit');
}
return strlen($string);
}
/**
* Whether the current user is authenticated
*
* @return bool
*/
public function isAuthenticated() {
$storedHash = $this->updater->getConfigOption('updater.secret');
// As a sanity check the stored hash or the sent password can never be empty
if($storedHash === '' || $storedHash === null || $this->password === null) {
return false;
}
// As we still support PHP 5.4 we have to use some magic involving "crypt"
return $this->equals($storedHash, crypt($this->password, $storedHash));
}
}
class Updater {
/** @var string */
private $baseDir;
/** @var array */
private $configValues = [];
/** @var string */
private $currentVersion = 'unknown';
/** @var string */
private $buildTime;
/** @var bool */
private $updateAvailable = false;
/** @var string */
private $requestID = null;
/**
* Updater constructor
* @param $baseDir string the absolute path to the /updater/ directory in the Nextcloud root
* @throws \Exception
*/
public function __construct($baseDir) {
$this->baseDir = $baseDir;
if($dir = getenv('NEXTCLOUD_CONFIG_DIR')) {
$configFileName = rtrim($dir, '/') . '/config.php';
} else {
$configFileName = $this->baseDir . '/../config/config.php';
}
if (!file_exists($configFileName)) {
throw new \Exception('Could not find config.php. Is this file in the "updater" subfolder of Nextcloud?');
}
/** @var array $CONFIG */
require_once $configFileName;
$this->configValues = $CONFIG;
$dataDir = $this->getDataDirectoryLocation();
if(empty($dataDir) || !is_string($dataDir)) {
throw new \Exception('Could not read data directory from config.php.');
}
$versionFileName = $this->baseDir . '/../version.php';
if (!file_exists($versionFileName)) {
// fallback to version in config.php
$version = $this->getConfigOption('version');
$buildTime = '';
} else {
/** @var string $OC_VersionString */
/** @var string $OC_Build */
require_once $versionFileName;
$version = $OC_VersionString;
$buildTime = $OC_Build;
}
if($version === null) {
return;
}
if($buildTime === null) {
return;
}
// normalize version to 3 digits
$splittedVersion = explode('.', $version);
if(sizeof($splittedVersion) >= 3) {
$splittedVersion = array_slice($splittedVersion, 0, 3);
}
$this->currentVersion = implode('.', $splittedVersion);
$this->buildTime = $buildTime;
}
/**
* Returns current version or "unknown" if this could not be determined.
*
* @return string
*/
public function getCurrentVersion() {
return $this->currentVersion;
}
/**
* Returns currently used release channel
*
* @return string
*/
private function getCurrentReleaseChannel() {
return !is_null($this->getConfigOption('updater.release.channel')) ? $this->getConfigOption('updater.release.channel') : 'stable';
}
/**
* @return string
* @throws \Exception
*/
public function checkForUpdate() {
$response = $this->getUpdateServerResponse();
$this->silentLog('[info] checkForUpdate() ' . print_r($response, true));
$version = isset($response['version']) ? $response['version'] : '';
$versionString = isset($response['versionstring']) ? $response['versionstring'] : '';
if ($version !== '' && $version !== $this->currentVersion) {
$this->updateAvailable = true;
$releaseChannel = $this->getCurrentReleaseChannel();
$updateText = 'Update to ' . htmlentities($versionString) . ' available. (channel: "' . htmlentities($releaseChannel) . '")<br /><span class="light">Following file will be downloaded automatically:</span> <code class="light">' . $response['url'] . '</code>';
} else {
$updateText = 'No update available.';
}
if ($this->updateAvailable && isset($response['autoupdater']) && !($response['autoupdater'] === 1 || $response['autoupdater'] === '1')) {
$this->updateAvailable = false;
$updateText .= '<br />The updater is disabled for this update - please update manually.';
}
$this->silentLog('[info] end of checkForUpdate() ' . $updateText);
return $updateText;
}
/**
* Returns bool whether update is available or not
*
* @return bool
*/
public function updateAvailable() {
return $this->updateAvailable;
}
/**
* Returns the specified config options
*
* @param string $key
* @return mixed|null Null if the entry is not found
*/
public function getConfigOption($key) {
return isset($this->configValues[$key]) ? $this->configValues[$key] : null;
}
/**
* Gets the data directory location on the local filesystem
*
* @return string
*/
private function getDataDirectoryLocation() {
return $this->configValues['datadirectory'];
}
/**
* Returns the expected files and folders as array
*
* @return array
*/
private function getExpectedElementsList() {
$expected = [
// Generic
'.',
'..',
// Folders
'3rdparty',
'apps',
'config',
'core',
'data',
'l10n',
'lib',
'ocs',
'ocs-provider',
'resources',
'settings',
'themes',
'updater',
// Files
'index.html',
'indie.json',
'.user.ini',
'console.php',
'cron.php',
'index.php',
'public.php',
'remote.php',
'status.php',
'version.php',
'robots.txt',
'.htaccess',
'AUTHORS',
'CHANGELOG.md',
'COPYING',
'COPYING-AGPL',
'occ',
'db_structure.xml',
];
return array_merge($expected, $this->getAppDirectories());
}
/**
* Returns app directories specified in config.php
*
* @return array
*/
private function getAppDirectories() {
$expected = [];
if($appsPaths = $this->getConfigOption('apps_paths')) {
foreach ($appsPaths as $appsPath) {
$parentDir = realpath($this->baseDir . '/../');
$appDir = basename($appsPath['path']);
if(strpos($appsPath['path'], $parentDir) === 0 && $appDir !== 'apps') {
$expected[] = $appDir;
}
}
}
return $expected;
}
/**
* Gets the recursive directory iterator over the Nextcloud folder
*
* @param string $folder
* @return \RecursiveIteratorIterator
*/
private function getRecursiveDirectoryIterator($folder = null) {
if ($folder === null) {
$folder = $this->baseDir . '/../';
}
return new \RecursiveIteratorIterator(
new \RecursiveDirectoryIterator($folder, \RecursiveDirectoryIterator::SKIP_DOTS),
\RecursiveIteratorIterator::CHILD_FIRST
);
}
/**
* Checks for files that are unexpected.
*/
public function checkForExpectedFilesAndFolders() {
$this->silentLog('[info] checkForExpectedFilesAndFolders()');
$expectedElements = $this->getExpectedElementsList();
$unexpectedElements = [];
foreach (new \DirectoryIterator($this->baseDir . '/../') as $fileInfo) {
if(array_search($fileInfo->getFilename(), $expectedElements) === false) {
$unexpectedElements[] = $fileInfo->getFilename();
}
}
if (count($unexpectedElements) !== 0) {
throw new UpdateException($unexpectedElements);
}
$this->silentLog('[info] end of checkForExpectedFilesAndFolders()');
}
/**
* Checks for files that are not writable
*/
public function checkWritePermissions() {
$this->silentLog('[info] checkWritePermissions()');
$notWritablePaths = array();
$dir = new \RecursiveDirectoryIterator($this->baseDir . '/../');
$filter = new RecursiveDirectoryIteratorWithoutData($dir);
$it = new \RecursiveIteratorIterator($filter);
foreach ($it as $path => $dir) {
if(!is_writable($path)) {
$notWritablePaths[] = $path;
}
}
if(count($notWritablePaths) > 0) {
throw new UpdateException($notWritablePaths);
}
$this->silentLog('[info] end of checkWritePermissions()');
}
/**
* Sets the maintenance mode to the defined value
*
* @param bool $state
* @throws \Exception when config.php can't be written
*/
public function setMaintenanceMode($state) {
$this->silentLog('[info] setMaintenanceMode("' . ($state ? 'true' : 'false') . '")');
if($dir = getenv('NEXTCLOUD_CONFIG_DIR')) {
$configFileName = rtrim($dir, '/') . '/config.php';
} else {
$configFileName = $this->baseDir . '/../config/config.php';
}
$this->silentLog('[info] configFileName ' . $configFileName);
// usually is already tested in the constructor but just to be on the safe side
if (!file_exists($configFileName)) {
throw new \Exception('Could not find config.php.');
}
/** @var array $CONFIG */
require $configFileName;
$CONFIG['maintenance'] = $state;
$content = "<?php\n";
$content .= '$CONFIG = ';
$content .= var_export($CONFIG, true);
$content .= ";\n";
$state = file_put_contents($configFileName, $content);
if ($state === false) {
throw new \Exception('Could not write to config.php');
}
$this->silentLog('[info] end of setMaintenanceMode()');
}
/**
* Creates a backup of all files and moves it into data/updater-$instanceid/backups/nextcloud-X-Y-Z/
*
* @throws \Exception
*/
public function createBackup() {
$this->silentLog('[info] createBackup()');
$excludedElements = [
'data',
];
// Create new folder for the backup
$backupFolderLocation = $this->getDataDirectoryLocation() . '/updater-'.$this->getConfigOption('instanceid').'/backups/nextcloud-'.$this->getConfigOption('version') . '/';
if(file_exists($backupFolderLocation)) {
$this->silentLog('[info] backup folder location exists');
$this->recursiveDelete($backupFolderLocation);
}
$state = mkdir($backupFolderLocation, 0750, true);
if($state === false) {
throw new \Exception('Could not create backup folder location');
}
// Copy the backup files
$currentDir = $this->baseDir . '/../';
/**
* @var string $path
* @var \SplFileInfo $fileInfo
*/
foreach ($this->getRecursiveDirectoryIterator($currentDir) as $path => $fileInfo) {
$fileName = explode($currentDir, $path)[1];
$folderStructure = explode('/', $fileName, -1);
// Exclude the exclusions
if(isset($folderStructure[0])) {
if(array_search($folderStructure[0], $excludedElements) !== false) {
continue;
}
} else {
if(array_search($fileName, $excludedElements) !== false) {
continue;
}
}
// Create folder if it doesn't exist
if(!file_exists($backupFolderLocation . '/' . dirname($fileName))) {
$state = mkdir($backupFolderLocation . '/' . dirname($fileName), 0750, true);
if($state === false) {
throw new \Exception('Could not create folder: '.$backupFolderLocation.'/'.dirname($fileName));
}
}
// If it is a file copy it
if($fileInfo->isFile()) {
$state = copy($fileInfo->getRealPath(), $backupFolderLocation . $fileName);
if($state === false) {
throw new \Exception(
sprintf(
'Could not copy "%s" to "%s"',
$fileInfo->getRealPath(),
$backupFolderLocation . $fileName
)
);
}
}
}
$this->silentLog('[info] end of createBackup()');
}
/**
* @return array
* @throws \Exception
*/
private function getUpdateServerResponse() {
$this->silentLog('[info] getUpdateServerResponse()');
$updaterServer = $this->getConfigOption('updater.server.url');
if($updaterServer === null) {
// FIXME: used deployed URL
$updaterServer = 'https://updates.nextcloud.org/updater_server/';
}
$this->silentLog('[info] updaterServer: ' . $updaterServer);
$releaseChannel = $this->getCurrentReleaseChannel();
$this->silentLog('[info] releaseChannel: ' . $releaseChannel);
$this->silentLog('[info] internal version: ' . $this->getConfigOption('version'));
$updateURL = $updaterServer . '?version='. str_replace('.', 'x', $this->getConfigOption('version')) .'xxx'.$releaseChannel.'xx'.urlencode($this->buildTime).'x'.PHP_MAJOR_VERSION.'x'.PHP_MINOR_VERSION.'x'.PHP_RELEASE_VERSION;
$this->silentLog('[info] updateURL: ' . $updateURL);
// Download update response
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => $updateURL,
CURLOPT_USERAGENT => 'Nextcloud Updater',
]);
if ($this->getConfigOption('proxy') !== null) {
curl_setopt_array($curl, [
CURLOPT_PROXY => $this->getConfigOption('proxy'),
CURLOPT_PROXYUSERPWD => $this->getConfigOption('proxyuserpwd'),
CURLOPT_HTTPPROXYTUNNEL => $this->getConfigOption('proxy') ? 1 : 0,
]);
}
$response = curl_exec($curl);
if($response === false) {
throw new \Exception('Could not do request to updater server: '.curl_error($curl));
}
curl_close($curl);
// Response can be empty when no update is available
if($response === '') {
return [];
}
$xml = simplexml_load_string($response);
if($xml === false) {
throw new \Exception('Could not parse updater server XML response');
}
$json = json_encode($xml);
if($json === false) {
throw new \Exception('Could not JSON encode updater server response');
}
$response = json_decode($json, true);
if($response === null) {
throw new \Exception('Could not JSON decode updater server response.');
}
$this->silentLog('[info] getUpdateServerResponse response: ' . print_r($response, true));
return $response;
}
/**
* Downloads the nextcloud folder to $DATADIR/updater-$instanceid/downloads/$filename
*
* @throws \Exception
*/
public function downloadUpdate() {
$this->silentLog('[info] downloadUpdate()');
$response = $this->getUpdateServerResponse();
$storageLocation = $this->getDataDirectoryLocation() . '/updater-'.$this->getConfigOption('instanceid') . '/downloads/';
if(file_exists($storageLocation)) {
$this->silentLog('[info] storage location exists');
$this->recursiveDelete($storageLocation);
}
$state = mkdir($storageLocation, 0750, true);
if($state === false) {
throw new \Exception('Could not mkdir storage location');
}
$fp = fopen($storageLocation . basename($response['url']), 'w+');
$ch = curl_init($response['url']);
curl_setopt_array($ch, [
CURLOPT_FILE => $fp,
CURLOPT_USERAGENT => 'Nextcloud Updater',
]);
if ($this->getConfigOption('proxy') !== null) {
curl_setopt_array($ch, [
CURLOPT_PROXY => $this->getConfigOption('proxy'),
CURLOPT_PROXYUSERPWD => $this->getConfigOption('proxyuserpwd'),
CURLOPT_HTTPPROXYTUNNEL => $this->getConfigOption('proxy') ? 1 : 0,
]);
}
if(curl_exec($ch) === false) {
throw new \Exception('Curl error: ' . curl_error($ch));
}
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if($httpCode !== 200) {
$statusCodes = [
400 => 'Bad request',
401 => 'Unauthorized',
403 => 'Forbidden',
404 => 'Not Found',
500 => 'Internal Server Error',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Timeout',
];
$message = 'Download failed';
if(isset($statusCodes[$httpCode])) {
$message .= ' - ' . $statusCodes[$httpCode] . ' (HTTP ' . $httpCode . ')';
} else {
$message .= ' - HTTP status code: ' . $httpCode;
}
$curlErrorMessage = curl_error($ch);
if(!empty($curlErrorMessage)) {
$message .= ' - curl error message: ' . $curlErrorMessage;
}
$message .= ' - URL: ' . htmlentities($response['url']);
throw new \Exception($message);
}
curl_close($ch);
fclose($fp);
$this->silentLog('[info] end of downloadUpdate()');
}
/**
* @return string
* @throws \Exception
*/
private function getDownloadedFilePath() {
$storageLocation = $this->getDataDirectoryLocation() . '/updater-'.$this->getConfigOption('instanceid') . '/downloads/';
$this->silentLog('[info] storage location: ' . $storageLocation);
$files = scandir($storageLocation);
// ., .. and downloaded zip archive
if(count($files) !== 3) {
throw new \Exception('Not exact 3 files existent in folder');
}
return $storageLocation . '/' . $files[2];
}
/**
* Verifies the integrity of the downloaded file
*
* @throws \Exception
*/
public function verifyIntegrity() {
$this->silentLog('[info] verifyIntegrity()');
if($this->getCurrentReleaseChannel() === 'daily') {
$this->silentLog('[info] current channel is "daily" which is not signed. Skipping verification.');
return;
}
$response = $this->getUpdateServerResponse();
if(!isset($response['signature'])) {
throw new \Exception('No signature specified for defined update');
}
$certificate = <<<EOF
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
EOF;
$validSignature = (bool)openssl_verify(
file_get_contents($this->getDownloadedFilePath()),
base64_decode($response['signature']),
$certificate,
OPENSSL_ALGO_SHA512
);
if($validSignature === false) {
throw new \Exception('Signature of update is not valid');
}
$this->silentLog('[info] end of verifyIntegrity()');
}
/**
* Gets the version as declared in $versionFile
*
* @param string $versionFile
* @return string
* @throws \Exception If $OC_Version is not defined in $versionFile
*/
private function getVersionByVersionFile($versionFile) {
require $versionFile;
if(isset($OC_Version)) {
/** @var array $OC_Version */
return implode('.', $OC_Version);
}
throw new \Exception("OC_Version not found in $versionFile");
}
/**
* Extracts the download
*
* @throws \Exception
*/
public function extractDownload() {
$this->silentLog('[info] extractDownload()');
$downloadedFilePath = $this->getDownloadedFilePath();
$zip = new \ZipArchive;
$zipState = $zip->open($downloadedFilePath);
if ($zipState === true) {
$zip->extractTo(dirname($downloadedFilePath));
$zip->close();
$state = unlink($downloadedFilePath);
if($state === false) {
throw new \Exception('Cant unlink '. $downloadedFilePath);
}
} else {
throw new \Exception('Cant handle ZIP file. Error code is: '.$zipState);
}
// Ensure that the downloaded version is not lower
$downloadedVersion = $this->getVersionByVersionFile(dirname($downloadedFilePath) . '/nextcloud/version.php');
$currentVersion = $this->getVersionByVersionFile($this->baseDir . '/../version.php');
if(version_compare($downloadedVersion, $currentVersion, '<')) {
throw new \Exception('Downloaded version is lower than installed version');
}
$this->silentLog('[info] end of extractDownload()');
}
/**
* Replaces the entry point files with files that only return a 503
*
* @throws \Exception
*/
public function replaceEntryPoints() {
$this->silentLog('[info] replaceEntryPoints()');
$filesToReplace = [
'index.php',
'status.php',
'remote.php',
'public.php',
'ocs/v1.php',
'ocs/v2.php',
];
$content = "<?php\nhttp_response_code(503);\ndie('Update in process.');";
foreach($filesToReplace as $file) {
$this->silentLog('[info] replace ' . $file);
$parentDir = dirname($this->baseDir . '/../' . $file);
if(!file_exists($parentDir)) {
$r = mkdir($parentDir);
if($r !== true) {
throw new \Exception('Can\'t create parent directory for entry point: ' . $file);
}
}
$state = file_put_contents($this->baseDir . '/../' . $file, $content);
if($state === false) {
throw new \Exception('Can\'t replace entry point: '.$file);
}
}
$this->silentLog('[info] end of replaceEntryPoints()');
}
/**
* Recursively deletes the specified folder from the system
*
* @param string $folder
* @throws \Exception
*/
private function recursiveDelete($folder) {
if(!file_exists($folder)) {
return;
}
$iterator = new \RecursiveIteratorIterator(
new \RecursiveDirectoryIterator($folder, \RecursiveDirectoryIterator::SKIP_DOTS),
\RecursiveIteratorIterator::CHILD_FIRST
);
foreach ($iterator as $fileInfo) {
$action = $fileInfo->isDir() ? 'rmdir' : 'unlink';
$action($fileInfo->getRealPath());
}
$state = rmdir($folder);
if($state === false) {
throw new \Exception('Could not rmdir ' . $folder);
}
}
/**
* Delete old files from the system as much as possible
*
* @throws \Exception
*/
public function deleteOldFiles() {
$this->silentLog('[info] deleteOldFiles()');
$shippedAppsFile = $this->baseDir . '/../core/shipped.json';
if(!file_exists($shippedAppsFile)) {
throw new \Exception('core/shipped.json is not available');
}
// Delete shipped apps
$shippedApps = json_decode(file_get_contents($shippedAppsFile), true);
foreach($shippedApps['shippedApps'] as $app) {
$this->recursiveDelete($this->baseDir . '/../apps/' . $app);
}
$configSampleFile = $this->baseDir . '/../config/config.sample.php';
if(file_exists($configSampleFile)) {
$this->silentLog('[info] config sample exists');
// Delete example config
$state = unlink($configSampleFile);
if ($state === false) {
throw new \Exception('Could not unlink sample config');
}
}
$themesReadme = $this->baseDir . '/../themes/README';
if(file_exists($themesReadme)) {
$this->silentLog('[info] thmes README exists');
// Delete themes
$state = unlink($themesReadme);
if ($state === false) {
throw new \Exception('Could not delete themes README');
}
}
$this->recursiveDelete($this->baseDir . '/../themes/example/');
// Delete the rest
$excludedElements = [
'data',
'index.php',
'status.php',
'remote.php',
'public.php',
'ocs/v1.php',
'ocs/v2.php',
'config',
'themes',
'apps',
'updater',
];
$excludedElements = array_merge($excludedElements, $this->getAppDirectories());
/**
* @var string $path
* @var \SplFileInfo $fileInfo
*/
foreach ($this->getRecursiveDirectoryIterator() as $path => $fileInfo) {
$currentDir = $this->baseDir . '/../';
$fileName = explode($currentDir, $path)[1];
$folderStructure = explode('/', $fileName, -1);
// Exclude the exclusions
if(isset($folderStructure[0])) {
if(array_search($folderStructure[0], $excludedElements) !== false) {
continue;
}
} else {
if(array_search($fileName, $excludedElements) !== false) {
continue;
}
}
if($fileInfo->isFile()) {
$state = unlink($path);
if($state === false) {
throw new \Exception('Could not unlink: '.$path);
}
} elseif($fileInfo->isDir()) {
$state = rmdir($path);
if($state === false) {
throw new \Exception('Could not rmdir: '.$path);
}
}
}
$this->silentLog('[info] end of deleteOldFiles()');
}
/**
* Moves the specified filed except the excluded elements to the correct position
*
* @param string $dataLocation
* @param array $excludedElements
* @throws \Exception
*/
private function moveWithExclusions($dataLocation, array $excludedElements) {
/**
* @var \SplFileInfo $fileInfo
*/
foreach ($this->getRecursiveDirectoryIterator($dataLocation) as $path => $fileInfo) {
$fileName = explode($dataLocation, $path)[1];
$folderStructure = explode('/', $fileName, -1);
// Exclude the exclusions
if (isset($folderStructure[0])) {
if (array_search($folderStructure[0], $excludedElements) !== false) {
continue;
}
} else {
if (array_search($fileName, $excludedElements) !== false) {
continue;
}
}
if($fileInfo->isFile()) {
if(!file_exists($this->baseDir . '/../' . dirname($fileName))) {
$state = mkdir($this->baseDir . '/../' . dirname($fileName), 0755, true);
if($state === false) {
throw new \Exception('Could not mkdir ' . $this->baseDir . '/../' . dirname($fileName));
}
}
$state = rename($path, $this->baseDir . '/../' . $fileName);
if($state === false) {
throw new \Exception(
sprintf(
'Could not rename %s to %s',
$path,
$this->baseDir . '/../' . $fileName
)
);
}
}
if($fileInfo->isDir()) {
$state = rmdir($path);
if($state === false) {
throw new \Exception('Could not rmdir ' . $path);
}
}
}
}
/**
* Moves the newly downloaded files into place
*
* @throws \Exception
*/
public function moveNewVersionInPlace() {
$this->silentLog('[info] moveNewVersionInPlace()');
// Rename everything else except the entry and updater files
$excludedElements = [
'updater',
'index.php',
'status.php',
'remote.php',
'public.php',
'ocs/v1.php',
'ocs/v2.php',