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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Debug\Handler; |
| 16 | |
| 17 | use Pop\Http\Server\Request; |
| 18 | use Pop\Http\Uri; |
| 19 | use Pop\Session\Session; |
| 20 | use Psr\Log\LoggerInterface; |
| 21 | |
| 22 | /** |
| 23 | * Debug request handler class |
| 24 | * |
| 25 | * @category Pop |
| 26 | * @package Pop\Debug |
| 27 | * @author Nick Sagona, III <dev@noladev.com> |
| 28 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 29 | * @license https://www.popphp.org/license New BSD License |
| 30 | * @version 4.0.0 |
| 31 | */ |
| 32 | class RequestHandler extends AbstractHandler |
| 33 | { |
| 34 | |
| 35 | /** |
| 36 | * Request |
| 37 | * @var ?Request |
| 38 | */ |
| 39 | protected ?Request $request = null; |
| 40 | |
| 41 | /** |
| 42 | * Default keys (case-insensitive, separator-insensitive substring match) whose values get redacted |
| 43 | * @var array |
| 44 | */ |
| 45 | protected const array DEFAULT_REDACTED_KEYS = [ |
| 46 | 'pass', 'pwd', 'secret', 'token', 'apikey', 'accesstoken', 'refreshtoken', |
| 47 | 'clientsecret', 'privatekey', 'authorization', 'auth', 'cookie', 'csrf', |
| 48 | 'xsrf', 'sessionid', 'creditcard', 'cardnumber', 'cvv', 'cvc', 'ssn', 'pin', |
| 49 | ]; |
| 50 | |
| 51 | /** |
| 52 | * Value substituted in for anything matched by $redactedKeys or held in $_COOKIE/$_SESSION |
| 53 | * @var string |
| 54 | */ |
| 55 | protected const string REDACTED_VALUE = '[REDACTED]'; |
| 56 | |
| 57 | /** |
| 58 | * Whether to redact sensitive request data (headers, server/env vars, post/put/patch/parsed |
| 59 | * data matching $redactedKeys, plus the entirety of $_COOKIE and $_SESSION) before it is |
| 60 | * returned from prepare() and, in turn, logged or written to storage. Defaults to true so |
| 61 | * secrets aren't captured in plaintext by default. |
| 62 | * @var bool |
| 63 | */ |
| 64 | protected bool $redactSensitiveData = true; |
| 65 | |
| 66 | /** |
| 67 | * Keys whose values are redacted when $redactSensitiveData is true |
| 68 | * @var array |
| 69 | */ |
| 70 | protected array $redactedKeys = self::DEFAULT_REDACTED_KEYS; |
| 71 | |
| 72 | /** |
| 73 | * Cached, normalized (lowercased, non-alphanumeric stripped) version of $redactedKeys, |
| 74 | * rebuilt lazily on next use whenever $redactedKeys changes |
| 75 | * @var ?array |
| 76 | */ |
| 77 | protected ?array $normalizedRedactedKeys = null; |
| 78 | |
| 79 | /** |
| 80 | * Constructor |
| 81 | * |
| 82 | * Instantiate a request handler object |
| 83 | * |
| 84 | * @param ?Request $request |
| 85 | * @param ?string $name |
| 86 | * @param ?LoggerInterface $logger |
| 87 | * @param array $loggingParams |
| 88 | */ |
| 89 | public function __construct(?Request $request = null, ?string $name = null, ?LoggerInterface $logger = null, array $loggingParams = []) |
| 90 | { |
| 91 | parent::__construct($name, $logger, $loggingParams); |
| 92 | if ($request === null) { |
| 93 | $request = new Request(new Uri()); |
| 94 | } |
| 95 | $this->setRequest($request); |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Set request |
| 100 | * |
| 101 | * @param Request $request |
| 102 | * @return RequestHandler |
| 103 | */ |
| 104 | public function setRequest(Request $request): RequestHandler |
| 105 | { |
| 106 | $this->request = $request; |
| 107 | return $this; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Get request |
| 112 | * |
| 113 | * @return Request |
| 114 | */ |
| 115 | public function getRequest(): Request |
| 116 | { |
| 117 | return $this->request; |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Get request (alias) |
| 122 | * |
| 123 | * @return Request |
| 124 | */ |
| 125 | public function request(): Request |
| 126 | { |
| 127 | return $this->request; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Has request |
| 132 | * |
| 133 | * @return bool |
| 134 | */ |
| 135 | public function hasRequest(): bool |
| 136 | { |
| 137 | return ($this->request !== null); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Set whether to redact sensitive request data before it's returned from prepare() |
| 142 | * |
| 143 | * @param bool $redact |
| 144 | * @return RequestHandler |
| 145 | */ |
| 146 | public function setRedactSensitiveData(bool $redact = true): RequestHandler |
| 147 | { |
| 148 | $this->redactSensitiveData = $redact; |
| 149 | return $this; |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * Determine if sensitive request data is being redacted |
| 154 | * |
| 155 | * @return bool |
| 156 | */ |
| 157 | public function isRedactingSensitiveData(): bool |
| 158 | { |
| 159 | return $this->redactSensitiveData; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Set the keys (case-insensitive, separator-insensitive substring match) whose values get redacted |
| 164 | * |
| 165 | * @param array $keys |
| 166 | * @return RequestHandler |
| 167 | */ |
| 168 | public function setRedactedKeys(array $keys): RequestHandler |
| 169 | { |
| 170 | $this->redactedKeys = $keys; |
| 171 | $this->normalizedRedactedKeys = null; |
| 172 | return $this; |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Add a key whose value should be redacted |
| 177 | * |
| 178 | * @param string $key |
| 179 | * @return RequestHandler |
| 180 | */ |
| 181 | public function addRedactedKey(string $key): RequestHandler |
| 182 | { |
| 183 | $this->redactedKeys[] = $key; |
| 184 | $this->normalizedRedactedKeys = null; |
| 185 | return $this; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Get the keys whose values get redacted |
| 190 | * |
| 191 | * @return array |
| 192 | */ |
| 193 | public function getRedactedKeys(): array |
| 194 | { |
| 195 | return $this->redactedKeys; |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Prepare handler data for storage |
| 200 | * |
| 201 | * @return array |
| 202 | */ |
| 203 | public function prepare(): array |
| 204 | { |
| 205 | Session::getInstance(); |
| 206 | |
| 207 | if (!$this->hasEnd()) { |
| 208 | $this->setEnd(); |
| 209 | } |
| 210 | |
| 211 | $headers = $this->request->getHeaders(); |
| 212 | $server = $this->request->getServer(); |
| 213 | $env = $this->request->getEnv(); |
| 214 | $get = $this->request->getQuery(); |
| 215 | $post = $this->request->getPost(); |
| 216 | $put = $this->request->getPut(); |
| 217 | $patch = $this->request->getPatch(); |
| 218 | $delete = $this->request->getDelete(); |
| 219 | $cookie = $_COOKIE; |
| 220 | $session = (isset($_SESSION)) ? $_SESSION : []; |
| 221 | $parsed = $this->request->getParsedData(); |
| 222 | |
| 223 | if ($this->redactSensitiveData) { |
| 224 | $headers = $this->redactKeys($headers); |
| 225 | $server = $this->redactKeys($server); |
| 226 | $env = $this->redactKeys($env); |
| 227 | $get = $this->redactKeys($get); |
| 228 | $post = $this->redactKeys($post); |
| 229 | $put = $this->redactKeys($put); |
| 230 | $patch = $this->redactKeys($patch); |
| 231 | $delete = $this->redactKeys($delete); |
| 232 | $cookie = $this->redactAll($cookie); |
| 233 | $session = $this->redactAll($session); |
| 234 | $parsed = $this->redactKeys($parsed); |
| 235 | } |
| 236 | |
| 237 | return [ |
| 238 | 'uri' => $this->request->getUri()->getUri(), |
| 239 | 'method' => $this->request->getMethod(), |
| 240 | 'headers' => $headers, |
| 241 | 'server' => $server, |
| 242 | 'env' => $env, |
| 243 | 'get' => $get, |
| 244 | 'post' => $post, |
| 245 | 'put' => $put, |
| 246 | 'patch' => $patch, |
| 247 | 'delete' => $delete, |
| 248 | 'files' => $this->request->getFiles(), |
| 249 | 'cookie' => $cookie, |
| 250 | 'session' => $session, |
| 251 | 'raw' => $this->request->getRawData(), |
| 252 | 'parsed' => $parsed, |
| 253 | ]; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Recursively redact array values whose key matches one of $redactedKeys |
| 258 | * |
| 259 | * @param mixed $data |
| 260 | * @return mixed |
| 261 | */ |
| 262 | protected function redactKeys(mixed $data): mixed |
| 263 | { |
| 264 | if (!is_array($data)) { |
| 265 | return $data; |
| 266 | } |
| 267 | |
| 268 | foreach ($data as $key => $value) { |
| 269 | if ($this->isRedactedKey((string)$key)) { |
| 270 | $data[$key] = self::REDACTED_VALUE; |
| 271 | } else if (is_array($value)) { |
| 272 | $data[$key] = $this->redactKeys($value); |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | return $data; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Redact every value in a flat array, regardless of key (used for $_COOKIE/$_SESSION, |
| 281 | * whose contents are treated as sensitive-by-nature) |
| 282 | * |
| 283 | * @param mixed $data |
| 284 | * @return mixed |
| 285 | */ |
| 286 | protected function redactAll(mixed $data): mixed |
| 287 | { |
| 288 | if (!is_array($data)) { |
| 289 | return $data; |
| 290 | } |
| 291 | |
| 292 | foreach ($data as $key => $value) { |
| 293 | $data[$key] = self::REDACTED_VALUE; |
| 294 | } |
| 295 | |
| 296 | return $data; |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Determine if a key matches one of $redactedKeys (case- and separator-insensitive) |
| 301 | * |
| 302 | * @param string $key |
| 303 | * @return bool |
| 304 | */ |
| 305 | protected function isRedactedKey(string $key): bool |
| 306 | { |
| 307 | if ($this->normalizedRedactedKeys === null) { |
| 308 | $this->normalizedRedactedKeys = []; |
| 309 | foreach ($this->redactedKeys as $redactedKey) { |
| 310 | $normalizedRedactedKey = strtolower(preg_replace('/[^a-zA-Z0-9]/', '', (string)$redactedKey)); |
| 311 | if ($normalizedRedactedKey !== '') { |
| 312 | $this->normalizedRedactedKeys[] = $normalizedRedactedKey; |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | $normalizedKey = strtolower(preg_replace('/[^a-zA-Z0-9]/', '', $key)); |
| 318 | |
| 319 | foreach ($this->normalizedRedactedKeys as $normalizedRedactedKey) { |
| 320 | if (str_contains($normalizedKey, $normalizedRedactedKey)) { |
| 321 | return true; |
| 322 | } |
| 323 | } |
| 324 | |
| 325 | return false; |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * Prepare handler message |
| 330 | * |
| 331 | * @param ?array $context |
| 332 | * @return string |
| 333 | */ |
| 334 | public function prepareMessage(?array $context = null): string |
| 335 | { |
| 336 | return (!empty($this->request)) ? |
| 337 | "The HTTP request '" . $this->request->getUri()->getUri() . "' was received." : |
| 338 | "An HTTP request was received."; |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Trigger handler logging |
| 343 | * |
| 344 | * @throws Exception |
| 345 | * @return void |
| 346 | */ |
| 347 | public function log(): void |
| 348 | { |
| 349 | $logLevel = $this->resolveLogLevel(); |
| 350 | if ($logLevel === null) { |
| 351 | return; |
| 352 | } |
| 353 | |
| 354 | $timeLimit = $this->loggingParams['limit'] ?? null; |
| 355 | $context = $this->prepare(); |
| 356 | |
| 357 | if ($timeLimit !== null) { |
| 358 | $elapsedTime = $this->getElapsed(); |
| 359 | if ($elapsedTime >= $timeLimit) { |
| 360 | $this->logger->log($logLevel, 'The request \'' . $this->request->getUri()->getUri() . |
| 361 | '\' has exceeded the time limit of ' . $timeLimit . ' second(s) by ' . |
| 362 | $elapsedTime - $timeLimit . ' second(s). The request was a total of ' . $elapsedTime . ' second(s).', |
| 363 | $context |
| 364 | ); |
| 365 | } |
| 366 | } else { |
| 367 | $this->logger->log($logLevel, $this->prepareMessage(), $context); |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | } |