148 lines
3.7 KiB
PHP
148 lines
3.7 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
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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\HintException;
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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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];
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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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foreach (self::methodsWithSensitiveParameters as $sensitiveMethod) {
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if (strpos($traceLine['function'], $sensitiveMethod) !== false) {
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$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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}
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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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