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<?php |
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namespace Lumener\Controllers; |
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use Illuminate\Routing\Controller; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Facades\Artisan; |
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class LumenerController extends Controller |
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{ |
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protected $adminer; |
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protected $adminer_object; |
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protected $plugins_path; |
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protected $allowed_dbs; |
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protected $protected_dbs; |
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protected $request; |
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public function __construct(Request $request) |
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{ |
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if (method_exists(\Route::class, 'hasMiddlewareGroup') |
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&& \Route::hasMiddlewareGroup('lumener')) { |
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$this->middleware('lumener'); |
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} |
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// LumenerServiceProvider::register holds the middleware register |
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// so it does not need to be addeed manually. |
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// User-defined middleware is handled during route definition for Lumen |
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$this->allowed_dbs = config('lumener.security.allowed_db'); |
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$this->protected_dbs = config('lumener.security.protected_db'); |
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$this->adminer = LUMENER_STORAGE.'/adminer.php'; |
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$this->adminer_object = __DIR__.'/../logic/adminer_object.php'; |
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$this->plugins_path = LUMENER_STORAGE.'/plugins'; |
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$this->request = $request; |
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} |
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public function __call($method, $params) |
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{ |
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if (strncasecmp($method, "get", 3) === 0) { |
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$var = preg_replace_callback('/[A-Z]/', function ($c) { |
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return '_'.strtolower($c[0]); |
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}, lcfirst(substr($method, 3))); |
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return $this->$var; |
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} |
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} |
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public function index() |
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{ |
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if ($this->request->cookie('adminer_logged_out') |
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&& config('lumener.logout_redirect')) { |
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return redirect(config('lumener.logout_redirect')); |
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} |
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if (isset($_POST['logout'])) { |
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$t = encrypt(time()); |
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$h = "Set-Cookie: adminer_logged_out={$t}; expires=".gmdate( |
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"D, d M Y H:i:s", |
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time() + config('lumener.logout_cooldown', 10) |
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)." GMT; path=".preg_replace('~\?.*~', '', $_SERVER["REQUEST_URI"]); |
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header($h); |
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} |
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if (file_exists($this->adminer)) { |
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return $this->_runAdminer(); |
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} else { |
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return '<div style="text-align:center;color: red; |
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margin-top: 200px;font-weight:bold;"> |
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Adminer was NOT found. |
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Run <span style="color:lightgreen;background:black; |
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padding: 5px;border: 5px dashed white;"> |
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php artisan lumener:update --force</span> |
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to fix any issues. |
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</div> |
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'; |
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} |
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} |
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public function update() |
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{ |
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Artisan::call('lumener:update'); |
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return nl2br(Artisan::output()); |
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} |
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public function getResource() |
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{ |
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$file = $this->request->get('file'); |
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$path = realpath(LUMENER_STORAGE."/{$file}"); |
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// Prevent risky file fetching |
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// This check is very important, it's a major security risk to allow |
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// Fetching files outside the LUMENER_STORAGE directory |
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if ( |
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$path === false |
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|| strncmp($path, LUMENER_STORAGE, strlen(LUMENER_STORAGE)) !== 0 |
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) { |
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abort(403); |
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} |
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$type = $this->request->get('type', mime_content_type($path)); |
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return response()->download($path, $file, ["Content-Type"=>$type]); |
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} |
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public function isDBBlocked($db) |
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{ |
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return |
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( |
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$this->allowed_dbs !== null |
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&& !in_array($db, $this->allowed_dbs) |
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) |
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|| |
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( |
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$this->protected_dbs !== null |
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&& in_array($db, $this->protected_dbs) |
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); |
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} |
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private function _runAdminer() |
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{ |
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$this->_handleAdminerAutoLogin(); |
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// Known Issues |
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$this->_patchAdminerRequest(); |
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// Security Check |
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$this->_verifyAdminerRequest(); |
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$content = |
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$this->_runGetBuffer([$this->adminer_object, $this->adminer]); |
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if (strpos($content, "<!DOCTYPE html>") === false) { |
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die($content); |
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} |
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return $content; |
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} |
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private function _handleAdminerAutoLogin() |
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{ |
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if (!isset($_GET['username']) && !isset($_POST['auth']) |
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&& config('lumener.auto_login') |
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&& !$this->request->cookie('adminer_logged_out')) { |
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// Skip login screen |
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$_GET['username'] = |
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config('lumener.db.username', env("DB_USERNAME")); |
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$_GET['db'] = |
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config('lumener.db.database', env("DB_DATABASE")); |
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// Password is set in the adminer extension |
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} |
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} |
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private function _verifyAdminerRequest() |
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{ |
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if ((isset($_GET['db']) && $_GET['db'] |
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&& $this->isDBBlocked($_GET['db'])) |
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|| (isset($_POST['auth']['db']) && $_POST['auth']['db'] |
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&& $this->isDBBlocked($_POST['auth']['db']))) { |
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abort(403); |
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} |
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} |
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private function _patchAdminerRequest() |
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{ |
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if (!isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) { |
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$_SERVER['HTTP_IF_MODIFIED_SINCE'] = null; |
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} |
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} |
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private function _runGetBuffer($files, $allowed_errors=[E_WARNING]) |
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{ |
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// Prepare for unhandled errors |
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$this->_setupErrorHandling(); |
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// Require files |
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ob_implicit_flush(0); |
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ob_start(); |
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try { |
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foreach ($files as $file) { |
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// require because include will not throw the adminer_exit error |
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require($file); |
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} |
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} catch (\ErrorException $e) { |
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if (config('lumener.debug') |
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|| !in_array($e->getSeverity(), $allowed_errors)) { |
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throw $e; |
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} |
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} |
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$this->_stopErrorHandling(); |
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$content = ""; |
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while ($level = ob_get_clean()) { |
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$content = $level . $content; |
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} |
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return $content; |
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} |
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private function _setupErrorHandling() |
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{ |
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set_error_handler(function ($err_severity, $err_msg, $err_file, $err_line) { |
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// Check if suppressed with the @-operator |
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if (0 === error_reporting()) { |
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return false; |
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} |
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throw new \ErrorException( |
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$err_msg, |
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0, |
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$err_severity, |
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$err_file, |
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$err_line |
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); |
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}); |
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} |
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private function _stopErrorHandling() |
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{ |
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set_error_handler(null); |
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} |
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} |
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HeshamMeneisi /
Lumener
