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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (http://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 7 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 8 | * @license http://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Http; |
| 15 | |
| 16 | use Pop\Mime\Part\Header; |
| 17 | |
| 18 | /** |
| 19 | * HTTP auth header class |
| 20 | * |
| 21 | * @category Pop |
| 22 | * @package Pop\Http |
| 23 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 24 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 25 | * @license http://www.popphp.org/license New BSD License |
| 26 | * @version 5.2.0 |
| 27 | */ |
| 28 | class Auth |
| 29 | { |
| 30 | |
| 31 | /** |
| 32 | * Auth header name |
| 33 | * @var string |
| 34 | */ |
| 35 | protected string $header = 'Authorization'; |
| 36 | |
| 37 | /** |
| 38 | * Auth scheme |
| 39 | * @var ?string |
| 40 | */ |
| 41 | protected ?string $scheme = null; |
| 42 | |
| 43 | /** |
| 44 | * Auth token |
| 45 | * @var ?string |
| 46 | */ |
| 47 | protected ?string $token = null; |
| 48 | |
| 49 | /** |
| 50 | * Auth username |
| 51 | * @var ?string |
| 52 | */ |
| 53 | protected ?string $username = null; |
| 54 | |
| 55 | /** |
| 56 | * Auth password |
| 57 | * @var ?string |
| 58 | */ |
| 59 | protected ?string $password = null; |
| 60 | |
| 61 | /** |
| 62 | * Digest |
| 63 | * @var ?Auth\Digest |
| 64 | */ |
| 65 | protected ?Auth\Digest $digest = null; |
| 66 | |
| 67 | /** |
| 68 | * Auth header object |
| 69 | * @var ?Header |
| 70 | */ |
| 71 | protected ?Header $authHeader = null; |
| 72 | |
| 73 | /** |
| 74 | * Constructor |
| 75 | * |
| 76 | * Instantiate the auth object |
| 77 | * |
| 78 | * @param string $header |
| 79 | * @param ?string $scheme |
| 80 | * @param ?string $token |
| 81 | * @param ?string $username |
| 82 | * @param ?string $password |
| 83 | * @param ?Auth\Digest $digest |
| 84 | */ |
| 85 | public function __construct( |
| 86 | string $header = 'Authorization', ?string $scheme = null, ?string $token = null, |
| 87 | ?string $username = null, ?string $password = null, ?Auth\Digest $digest = null |
| 88 | ) |
| 89 | { |
| 90 | $this->setHeader($header); |
| 91 | if ($scheme !== null) { |
| 92 | $this->setScheme($scheme); |
| 93 | } |
| 94 | if ($token !== null) { |
| 95 | $this->setToken($token); |
| 96 | } |
| 97 | if ($username !== null) { |
| 98 | $this->setUsername($username); |
| 99 | } |
| 100 | if ($password !== null) { |
| 101 | $this->setPassword($password); |
| 102 | } |
| 103 | if ($digest !== null) { |
| 104 | $this->setDigest($digest); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Create basic auth |
| 110 | * |
| 111 | * @param string $username |
| 112 | * @param string $password |
| 113 | * @return Auth |
| 114 | */ |
| 115 | public static function createBasic(string $username, string $password): Auth |
| 116 | { |
| 117 | return new static('Authorization', 'Basic', null, $username, $password); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Create bearer auth |
| 122 | * |
| 123 | * @param string $token |
| 124 | * @return Auth |
| 125 | */ |
| 126 | public static function createBearer(string $token): Auth |
| 127 | { |
| 128 | return new static('Authorization', 'Bearer', $token); |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Create key auth |
| 133 | * |
| 134 | * @param string $token |
| 135 | * @param string $header |
| 136 | * @param ?string $scheme |
| 137 | * @return Auth |
| 138 | */ |
| 139 | public static function createKey(string $token, string $header = 'Authorization', ?string $scheme = null): Auth |
| 140 | { |
| 141 | return new static($header, $scheme, $token); |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Create digest auth |
| 146 | * |
| 147 | * @param Auth\Digest $digest |
| 148 | * @return Auth |
| 149 | */ |
| 150 | public static function createDigest(Auth\Digest $digest): Auth |
| 151 | { |
| 152 | $auth = new static('Authorization', null, null, $digest->getUsername(), $digest->getPassword()); |
| 153 | $auth->setDigest($digest); |
| 154 | return $auth; |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * Parse header |
| 159 | * |
| 160 | * @param mixed $header |
| 161 | * @param array $options |
| 162 | * @throws Exception|Auth\Exception |
| 163 | * @return Auth |
| 164 | */ |
| 165 | public static function parse(mixed $header, array $options = []): Auth |
| 166 | { |
| 167 | $auth = new static(); |
| 168 | |
| 169 | if (!($header instanceof Header)) { |
| 170 | $header = Header::parse($header); |
| 171 | } |
| 172 | |
| 173 | $headerName = (strtolower((string)$header->getName()) == 'www-authenticate') ? 'Authorization' : $header->getName(); |
| 174 | $auth->setHeader($headerName); |
| 175 | |
| 176 | if (count($header->getValues()) == 1) { |
| 177 | $value = $header->getValue(); |
| 178 | } else { |
| 179 | $value = $header->getValuesAsStrings('; '); |
| 180 | } |
| 181 | |
| 182 | if ((($value instanceof Header\Value) && !empty($value->getScheme()) && (trim($value->getScheme()) == 'Digest')) || |
| 183 | (isset($options['scheme']) && ($options['scheme'] == 'digest'))) { |
| 184 | if (!isset($options['password'])) { |
| 185 | throw new Exception('Error: The password option must be passed.'); |
| 186 | } |
| 187 | if (strtolower((string)$header->getName()) == 'www-authenticate') { |
| 188 | if (!isset($options['username']) || !isset($options['uri'])) { |
| 189 | throw new Exception('Error: The username and URI options must be passed.'); |
| 190 | } |
| 191 | $auth->setDigest(Auth\Digest::createFromWwwAuth($header, $options['username'], $options['password'], $options['uri'])); |
| 192 | } else { |
| 193 | $auth->setDigest(Auth\Digest::createFromHeader($header, $options['password'])); |
| 194 | } |
| 195 | } else if (str_starts_with($value, 'Basic')) { |
| 196 | $auth->setScheme('Basic'); |
| 197 | $creds = base64_decode(trim(substr($value, 5))); |
| 198 | if (($creds !== false) && (str_contains($creds, ':'))) { |
| 199 | [$username, $password] = explode(':', $creds); |
| 200 | $auth->setUsername($username) |
| 201 | ->setPassword($password); |
| 202 | } |
| 203 | } else if (str_starts_with($value, 'Bearer')) { |
| 204 | $auth->setScheme('Bearer'); |
| 205 | $auth->setToken(trim(substr($value, 6))); |
| 206 | } else { |
| 207 | if (isset($options['scheme']) && (str_starts_with($value, $options['scheme']))) { |
| 208 | $value = substr($value, strlen($options['scheme'])); |
| 209 | $auth->setScheme($options['scheme']); |
| 210 | } |
| 211 | $auth->setToken($value); |
| 212 | } |
| 213 | |
| 214 | return $auth; |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * Set the header |
| 219 | * |
| 220 | * @param string $header |
| 221 | * @return Auth |
| 222 | */ |
| 223 | public function setHeader(string $header): Auth |
| 224 | { |
| 225 | $this->header = $header; |
| 226 | return $this; |
| 227 | } |
| 228 | |
| 229 | /** |
| 230 | * Set the scheme |
| 231 | * |
| 232 | * @param string $scheme |
| 233 | * @return Auth |
| 234 | */ |
| 235 | public function setScheme(string $scheme): Auth |
| 236 | { |
| 237 | $this->scheme = $scheme; |
| 238 | return $this; |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Set the token |
| 243 | * |
| 244 | * @param string $token |
| 245 | * @return Auth |
| 246 | */ |
| 247 | public function setToken(string $token): Auth |
| 248 | { |
| 249 | $this->token = $token; |
| 250 | return $this; |
| 251 | } |
| 252 | |
| 253 | /** |
| 254 | * Set the $username |
| 255 | * |
| 256 | * @param string $username |
| 257 | * @return Auth |
| 258 | */ |
| 259 | public function setUsername(string $username): Auth |
| 260 | { |
| 261 | $this->username = $username; |
| 262 | return $this; |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * Set the password |
| 267 | * |
| 268 | * @param string $password |
| 269 | * @return Auth |
| 270 | */ |
| 271 | public function setPassword(string $password): Auth |
| 272 | { |
| 273 | $this->password = $password; |
| 274 | if ($this->digest !== null) { |
| 275 | $this->digest->setPassword($password); |
| 276 | } |
| 277 | return $this; |
| 278 | } |
| 279 | |
| 280 | /** |
| 281 | * Set digest |
| 282 | * |
| 283 | * @param Auth\Digest $digest |
| 284 | * @return Auth |
| 285 | */ |
| 286 | public function setDigest(Auth\Digest $digest): Auth |
| 287 | { |
| 288 | $this->digest = $digest; |
| 289 | $this->setUsername($digest->getUsername()); |
| 290 | $this->setPassword($digest->getPassword()); |
| 291 | return $this; |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * Get the header |
| 296 | * |
| 297 | * @return string |
| 298 | */ |
| 299 | public function getHeader(): string |
| 300 | { |
| 301 | return $this->header; |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * Get the scheme |
| 306 | * |
| 307 | * @return string |
| 308 | */ |
| 309 | public function getScheme(): string |
| 310 | { |
| 311 | return $this->scheme; |
| 312 | } |
| 313 | |
| 314 | /** |
| 315 | * Get the token |
| 316 | * |
| 317 | * @return string |
| 318 | */ |
| 319 | public function getToken(): string |
| 320 | { |
| 321 | return $this->token; |
| 322 | } |
| 323 | |
| 324 | /** |
| 325 | * Get the $username |
| 326 | * |
| 327 | * @return string |
| 328 | */ |
| 329 | public function getUsername(): string |
| 330 | { |
| 331 | return $this->username; |
| 332 | } |
| 333 | |
| 334 | /** |
| 335 | * Get the password |
| 336 | * |
| 337 | * @return string |
| 338 | */ |
| 339 | public function getPassword(): string |
| 340 | { |
| 341 | return $this->password; |
| 342 | } |
| 343 | |
| 344 | /** |
| 345 | * Get digest |
| 346 | * |
| 347 | * @return Auth\Digest |
| 348 | */ |
| 349 | public function getDigest(): Auth\Digest |
| 350 | { |
| 351 | return $this->digest; |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * Has scheme |
| 356 | * |
| 357 | * @return bool |
| 358 | */ |
| 359 | public function hasScheme(): bool |
| 360 | { |
| 361 | return ($this->scheme !== null); |
| 362 | } |
| 363 | |
| 364 | /** |
| 365 | * Has token |
| 366 | * |
| 367 | * @return bool |
| 368 | */ |
| 369 | public function hasToken(): bool |
| 370 | { |
| 371 | return ($this->token !== null); |
| 372 | } |
| 373 | |
| 374 | /** |
| 375 | * Has $username |
| 376 | * |
| 377 | * @return bool |
| 378 | */ |
| 379 | public function hasUsername(): bool |
| 380 | { |
| 381 | return ($this->username !== null); |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * Has password |
| 386 | * |
| 387 | * @return bool |
| 388 | */ |
| 389 | public function hasPassword(): bool |
| 390 | { |
| 391 | return ($this->password !== null); |
| 392 | } |
| 393 | |
| 394 | /** |
| 395 | * Has digest |
| 396 | * |
| 397 | * @return bool |
| 398 | */ |
| 399 | public function hasDigest(): bool |
| 400 | { |
| 401 | return ($this->digest !== null); |
| 402 | } |
| 403 | |
| 404 | /** |
| 405 | * Has auth header |
| 406 | * |
| 407 | * @return bool |
| 408 | */ |
| 409 | public function hasAuthHeader(): bool |
| 410 | { |
| 411 | return ($this->authHeader !== null); |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Determine if the auth is basic |
| 416 | * |
| 417 | * @return bool |
| 418 | */ |
| 419 | public function isBasic(): bool |
| 420 | { |
| 421 | return (strtolower((string)$this->scheme) == 'basic'); |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Determine if the auth is bearer |
| 426 | * |
| 427 | * @return bool |
| 428 | */ |
| 429 | public function isBearer(): bool |
| 430 | { |
| 431 | return (strtolower((string)$this->scheme) == 'bearer'); |
| 432 | } |
| 433 | |
| 434 | /** |
| 435 | * Determine if the auth is digest |
| 436 | * |
| 437 | * @return bool |
| 438 | */ |
| 439 | public function isDigest(): bool |
| 440 | { |
| 441 | return $this->hasDigest(); |
| 442 | } |
| 443 | |
| 444 | /** |
| 445 | * Get auth header value object |
| 446 | * |
| 447 | * @return Header |
| 448 | */ |
| 449 | public function getAuthHeader(): Header |
| 450 | { |
| 451 | return $this->authHeader; |
| 452 | } |
| 453 | |
| 454 | /** |
| 455 | * Get auth header value as an array |
| 456 | * |
| 457 | * @param bool $assoc |
| 458 | * @throws Exception |
| 459 | * @return array |
| 460 | */ |
| 461 | public function getAuthHeaderAsArray(bool $assoc = true): array |
| 462 | { |
| 463 | $this->createAuthHeader(); |
| 464 | |
| 465 | return ($assoc) ? |
| 466 | [$this->authHeader->getName() => $this->authHeader->getValue()]: |
| 467 | [$this->authHeader->getName(), $this->authHeader->getValue()]; |
| 468 | } |
| 469 | |
| 470 | /** |
| 471 | * Get auth header value as a string |
| 472 | * |
| 473 | * @param bool $crlf |
| 474 | * @throws Exception |
| 475 | * @return string |
| 476 | */ |
| 477 | public function getAuthHeaderAsString(bool $crlf = false): string |
| 478 | { |
| 479 | $this->createAuthHeader(); |
| 480 | |
| 481 | $headerValue = $this->authHeader->render(); |
| 482 | if ($crlf) { |
| 483 | $headerValue .= "\r\n"; |
| 484 | } |
| 485 | |
| 486 | return $headerValue; |
| 487 | } |
| 488 | |
| 489 | /** |
| 490 | * Create auth header |
| 491 | * |
| 492 | * @throws Exception |
| 493 | * @return Header |
| 494 | */ |
| 495 | public function createAuthHeader(): Header |
| 496 | { |
| 497 | if (($this->isBasic()) && (($this->username === null) || ($this->password === null))) { |
| 498 | throw new Exception('Error: The username and password values must be set for basic authorization'); |
| 499 | } else if (($this->isDigest()) && (!$this->digest->isValid())) { |
| 500 | throw new Exception(implode('\n', $this->digest->getErrors())); |
| 501 | } else if (!($this->isBasic()) && !($this->isDigest()) && ($this->token === null)) { |
| 502 | throw new Exception('Error: The token is not set'); |
| 503 | } |
| 504 | |
| 505 | $value = new Header\Value(); |
| 506 | |
| 507 | if ($this->isBasic()) { |
| 508 | $value->setScheme('Basic '); |
| 509 | $value->setValue(base64_encode($this->username . ':' . $this->password)); |
| 510 | $value = 'Basic ' . base64_encode($this->username . ':' . $this->password); |
| 511 | } else if ($this->isDigest()) { |
| 512 | $this->digest->createDigestString($value); |
| 513 | } else if ($this->isBearer()) { |
| 514 | $value->setScheme('Bearer '); |
| 515 | $value->setValue($this->token); |
| 516 | } else { |
| 517 | if (!empty($this->scheme)) { |
| 518 | $value->setScheme($this->scheme); |
| 519 | } |
| 520 | $value->setValue($this->token); |
| 521 | } |
| 522 | |
| 523 | $this->authHeader = new Header($this->header, $value); |
| 524 | return $this->authHeader; |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * To string |
| 529 | * |
| 530 | * @return string |
| 531 | */ |
| 532 | public function __toString(): string |
| 533 | { |
| 534 | return $this->getAuthHeaderAsString(); |
| 535 | } |
| 536 | |
| 537 | } |