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<?php |
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/** |
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* @copyright Copyright (c) 2018 Robin Appelman <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OC\Log; |
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use OC\Core\Controller\SetupController; |
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use OC\HintException; |
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use OC\Setup; |
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class ExceptionSerializer { |
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const methodsWithSensitiveParameters = [ |
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// Session/User |
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'completeLogin', |
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'login', |
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'checkPassword', |
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'checkPasswordNoLogging', |
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'loginWithPassword', |
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'updatePrivateKeyPassword', |
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'validateUserPass', |
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'loginWithToken', |
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'{closure}', |
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'createSessionToken', |
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// Provisioning |
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'addUser', |
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// TokenProvider |
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'getToken', |
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'isTokenPassword', |
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'getPassword', |
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'decryptPassword', |
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'logClientIn', |
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'generateToken', |
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'validateToken', |
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// TwoFactorAuth |
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'solveChallenge', |
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'verifyChallenge', |
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// ICrypto |
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'calculateHMAC', |
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'encrypt', |
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'decrypt', |
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// LoginController |
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'tryLogin', |
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'confirmPassword', |
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// LDAP |
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'bind', |
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'areCredentialsValid', |
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'invokeLDAPMethod', |
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// Encryption |
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'storeKeyPair', |
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'setupUser', |
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// files_external: OC_Mount_Config |
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'getBackendStatus', |
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// files_external: UserStoragesController |
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'update', |
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]; |
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const methodsWithSensitiveParametersByClass = [ |
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SetupController::class => [ |
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'run', |
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'display', |
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'loadAutoConfig', |
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], |
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Setup::class => [ |
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'install' |
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] |
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]; |
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private function editTrace(array &$sensitiveValues, array $traceLine): array { |
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$sensitiveValues = array_merge($sensitiveValues, $traceLine['args']); |
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$traceLine['args'] = ['*** sensitive parameters replaced ***']; |
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return $traceLine; |
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} |
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private function filterTrace(array $trace) { |
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$sensitiveValues = []; |
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$trace = array_map(function (array $traceLine) use (&$sensitiveValues) { |
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$className = $traceLine['class'] ?? ''; |
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if ($className && isset(self::methodsWithSensitiveParametersByClass[$className]) |
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&& in_array($traceLine['function'], self::methodsWithSensitiveParametersByClass[$className], true)) { |
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return $this->editTrace($sensitiveValues, $traceLine); |
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} |
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foreach (self::methodsWithSensitiveParameters as $sensitiveMethod) { |
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if (strpos($traceLine['function'], $sensitiveMethod) !== false) { |
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return $this->editTrace($sensitiveValues, $traceLine); |
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} |
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} |
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return $traceLine; |
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}, $trace); |
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return array_map(function (array $traceLine) use ($sensitiveValues) { |
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if (isset($traceLine['args'])) { |
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$traceLine['args'] = $this->removeValuesFromArgs($traceLine['args'], $sensitiveValues); |
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} |
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return $traceLine; |
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}, $trace); |
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} |
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private function removeValuesFromArgs($args, $values) { |
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foreach ($args as &$arg) { |
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if (in_array($arg, $values, true)) { |
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$arg = '*** sensitive parameter replaced ***'; |
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} else if (is_array($arg)) { |
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$arg = $this->removeValuesFromArgs($arg, $values); |
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} |
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} |
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return $args; |
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} |
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private function encodeTrace($trace) { |
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$filteredTrace = $this->filterTrace($trace); |
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return array_map(function (array $line) { |
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if (isset($line['args'])) { |
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$line['args'] = array_map([$this, 'encodeArg'], $line['args']); |
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} |
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return $line; |
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}, $filteredTrace); |
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} |
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private function encodeArg($arg) { |
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if (is_object($arg)) { |
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$data = get_object_vars($arg); |
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$data['__class__'] = get_class($arg); |
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return array_map([$this, 'encodeArg'], $data); |
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} else if (is_array($arg)) { |
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return array_map([$this, 'encodeArg'], $arg); |
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} else { |
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return $arg; |
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} |
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} |
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public function serializeException(\Throwable $exception) { |
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$data = [ |
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'Exception' => get_class($exception), |
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'Message' => $exception->getMessage(), |
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'Code' => $exception->getCode(), |
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'Trace' => $this->encodeTrace($exception->getTrace()), |
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'File' => $exception->getFile(), |
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'Line' => $exception->getLine(), |
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]; |
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if ($exception instanceof HintException) { |
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$data['Hint'] = $exception->getHint(); |
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} |
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if ($exception->getPrevious()) { |
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$data['Previous'] = $this->serializeException($exception->getPrevious()); |
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} |
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return $data; |
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} |
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} |
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