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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\Mime; |
| 15 | |
| 16 | use Pop\Mime\Part\Exception; |
| 17 | |
| 18 | /** |
| 19 | * MIME message part class |
| 20 | * |
| 21 | * @category Pop |
| 22 | * @package Pop\Mime |
| 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 2.0.0 |
| 27 | */ |
| 28 | class Part |
| 29 | { |
| 30 | |
| 31 | /** |
| 32 | * Headers |
| 33 | * @var array |
| 34 | */ |
| 35 | protected array $headers = []; |
| 36 | |
| 37 | /** |
| 38 | * Body |
| 39 | * @var ?Part\Body |
| 40 | */ |
| 41 | protected ?Part\Body $body = null; |
| 42 | |
| 43 | /** |
| 44 | * Nested parts |
| 45 | * @var array |
| 46 | */ |
| 47 | protected array $parts = []; |
| 48 | |
| 49 | /** |
| 50 | * Subtype |
| 51 | * @var ?string |
| 52 | */ |
| 53 | protected ?string $subType = null; |
| 54 | |
| 55 | /** |
| 56 | * Boundary |
| 57 | * @var ?string |
| 58 | */ |
| 59 | protected ?string $boundary = null; |
| 60 | |
| 61 | /** |
| 62 | * Constructor |
| 63 | * |
| 64 | * Instantiate the mime part object |
| 65 | * |
| 66 | */ |
| 67 | public function __construct() |
| 68 | { |
| 69 | $args = func_get_args(); |
| 70 | foreach ($args as $arg) { |
| 71 | if (is_array($arg)) { |
| 72 | foreach ($arg as $a) { |
| 73 | if ($a instanceof Part\Header) { |
| 74 | $this->addHeader($a); |
| 75 | } else if ($a instanceof Part) { |
| 76 | $this->addPart($a); |
| 77 | } |
| 78 | } |
| 79 | } else if ($arg instanceof Part\Header) { |
| 80 | $this->addHeader($arg); |
| 81 | } else if ($arg instanceof Part\Body) { |
| 82 | $this->setBody($arg); |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Add a header |
| 89 | * |
| 90 | * @param Part\Header|string $header |
| 91 | * @param ?string $value |
| 92 | * @return Part |
| 93 | */ |
| 94 | public function addHeader(Part\Header|string $header, ?string $value = null): Part |
| 95 | { |
| 96 | if ($header instanceof Part\Header) { |
| 97 | $this->headers[$header->getName()] = $header; |
| 98 | } else { |
| 99 | $this->headers[$header] = new Part\Header($header, $value); |
| 100 | } |
| 101 | |
| 102 | return $this; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Add headers |
| 107 | * |
| 108 | * @param array $headers |
| 109 | * @return Part |
| 110 | */ |
| 111 | public function addHeaders(array $headers): Part |
| 112 | { |
| 113 | foreach ($headers as $header => $value) { |
| 114 | if ($value instanceof Part\Header) { |
| 115 | $this->addHeader($value); |
| 116 | } else { |
| 117 | $this->addHeader($header, $value); |
| 118 | } |
| 119 | } |
| 120 | return $this; |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Get headers |
| 125 | * |
| 126 | * @return array |
| 127 | */ |
| 128 | public function getHeaders(): array |
| 129 | { |
| 130 | return $this->headers; |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Get headers as array |
| 135 | * |
| 136 | * @return array |
| 137 | */ |
| 138 | public function getHeadersAsArray(): array |
| 139 | { |
| 140 | $headers = []; |
| 141 | |
| 142 | foreach ($this->headers as $header) { |
| 143 | $headers[$header->getName()] = $header->getValuesAsStrings(); |
| 144 | } |
| 145 | |
| 146 | return $headers; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Get headers |
| 151 | * |
| 152 | * @param string $name |
| 153 | * @return Part\Header|null |
| 154 | */ |
| 155 | public function getHeader(string $name): Part\Header|null |
| 156 | { |
| 157 | return $this->headers[$name] ?? null; |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Has header |
| 162 | * |
| 163 | * @param string $name |
| 164 | * @return bool |
| 165 | */ |
| 166 | public function hasHeader(string $name): bool |
| 167 | { |
| 168 | return (isset($this->headers[$name])); |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * Has headers |
| 173 | * |
| 174 | * @return bool |
| 175 | */ |
| 176 | public function hasHeaders(): bool |
| 177 | { |
| 178 | return (count($this->headers) > 0); |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Remove header |
| 183 | * |
| 184 | * @param string $name |
| 185 | * @return Part |
| 186 | */ |
| 187 | public function removeHeader(string $name): Part |
| 188 | { |
| 189 | if (isset($this->headers[$name])) { |
| 190 | unset($this->headers[$name]); |
| 191 | } |
| 192 | return $this; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * Set body |
| 197 | * |
| 198 | * @param Part\Body|string $body |
| 199 | * @return Part |
| 200 | */ |
| 201 | public function setBody(Part\Body|string$body): Part |
| 202 | { |
| 203 | $this->body = ($body instanceof Part\Body) ? $body : new Part\Body($body); |
| 204 | return $this; |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Add file as body |
| 209 | * |
| 210 | * @param string $file |
| 211 | * @param string $disposition |
| 212 | * @param string $encoding |
| 213 | * @param int|bool $split |
| 214 | * @throws Exception |
| 215 | * @return Part |
| 216 | */ |
| 217 | public function addFile( |
| 218 | string $file, string $disposition = 'attachment', string $encoding = Part\Body::BASE64, int|bool $split = true |
| 219 | ): Part |
| 220 | { |
| 221 | if ($disposition !== null) { |
| 222 | $header = new Part\Header('Content-Disposition'); |
| 223 | $header->addValue($disposition, null, ['filename' => basename($file)]); |
| 224 | $this->addHeader($header); |
| 225 | } |
| 226 | $this->body = new Part\Body(); |
| 227 | $this->body->setContentFromFile($file, $encoding, $split); |
| 228 | return $this; |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * Get body |
| 233 | * |
| 234 | * @return Part\Body |
| 235 | */ |
| 236 | public function getBody(): Part\Body |
| 237 | { |
| 238 | return $this->body; |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Has body |
| 243 | * |
| 244 | * @return bool |
| 245 | */ |
| 246 | public function hasBody(): bool |
| 247 | { |
| 248 | return ($this->body !== null); |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * Add a nested part |
| 253 | * |
| 254 | * @param Part $part |
| 255 | * @return Part |
| 256 | */ |
| 257 | public function addPart(Part $part): Part |
| 258 | { |
| 259 | $this->parts[] = $part; |
| 260 | return $this; |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * Add nested parts |
| 265 | * |
| 266 | * @param array $parts |
| 267 | * @return Part |
| 268 | */ |
| 269 | public function addParts(array $parts): Part |
| 270 | { |
| 271 | foreach ($parts as $part) { |
| 272 | if (is_array($part)) { |
| 273 | $file = false; |
| 274 | foreach ($part as $p) { |
| 275 | if (($p->hasBody()) && ($p->getBody()->isFile())) { |
| 276 | $file = true; |
| 277 | } |
| 278 | } |
| 279 | $subType = ($file) ? 'mixed' : 'alternative'; |
| 280 | $subParts = new Part(); |
| 281 | $subParts->setSubType($subType); |
| 282 | $subParts->addParts($part); |
| 283 | $this->addPart($subParts); |
| 284 | } else { |
| 285 | $this->addPart($part); |
| 286 | } |
| 287 | } |
| 288 | return $this; |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * Get nested parts |
| 293 | * |
| 294 | * @return array |
| 295 | */ |
| 296 | public function getParts(): array |
| 297 | { |
| 298 | return $this->parts; |
| 299 | } |
| 300 | |
| 301 | /** |
| 302 | * Has nested parts |
| 303 | * |
| 304 | * @return bool |
| 305 | */ |
| 306 | public function hasParts(): bool |
| 307 | { |
| 308 | return (count($this->parts) > 0); |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * Set subtype |
| 313 | * |
| 314 | * @param string $subType |
| 315 | * @return Part |
| 316 | */ |
| 317 | public function setSubType(string $subType): Part |
| 318 | { |
| 319 | $this->subType = $subType; |
| 320 | return $this; |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * Get subtype |
| 325 | * |
| 326 | * @return string |
| 327 | */ |
| 328 | public function getSubType(): string |
| 329 | { |
| 330 | return $this->subType; |
| 331 | } |
| 332 | |
| 333 | /** |
| 334 | * Has subtype |
| 335 | * |
| 336 | * @return bool |
| 337 | */ |
| 338 | public function hasSubType(): bool |
| 339 | { |
| 340 | return ($this->subType !== null); |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Set boundary |
| 345 | * |
| 346 | * @param string $boundary |
| 347 | * @return Part |
| 348 | */ |
| 349 | public function setBoundary(string $boundary): Part |
| 350 | { |
| 351 | $this->boundary = $boundary; |
| 352 | return $this; |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Get boundary |
| 357 | * |
| 358 | * @return string |
| 359 | */ |
| 360 | public function getBoundary(): string |
| 361 | { |
| 362 | return $this->boundary; |
| 363 | } |
| 364 | |
| 365 | /** |
| 366 | * Has boundary |
| 367 | * |
| 368 | * @return bool |
| 369 | */ |
| 370 | public function hasBoundary(): bool |
| 371 | { |
| 372 | return ($this->boundary !== null); |
| 373 | } |
| 374 | |
| 375 | /** |
| 376 | * Generate boundary |
| 377 | * |
| 378 | * @return string |
| 379 | */ |
| 380 | public function generateBoundary(): string |
| 381 | { |
| 382 | $this->setBoundary(sha1(uniqid())); |
| 383 | return $this->boundary; |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * Has attachment (check via a header) |
| 388 | * |
| 389 | * @return bool |
| 390 | */ |
| 391 | public function hasAttachment(): bool |
| 392 | { |
| 393 | $result = false; |
| 394 | |
| 395 | foreach ($this->headers as $header) { |
| 396 | if ($header->isAttachment()) { |
| 397 | $result = true; |
| 398 | break; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | if ((!$result) && ($this->hasParts())) { |
| 403 | $result = $this->hasAttachments(); |
| 404 | } |
| 405 | |
| 406 | return $result; |
| 407 | } |
| 408 | |
| 409 | /** |
| 410 | * Does message have attachments (check via parts) |
| 411 | * |
| 412 | * @return bool |
| 413 | */ |
| 414 | public function hasAttachments(): bool |
| 415 | { |
| 416 | foreach ($this->parts as $part) { |
| 417 | if ($part->hasAttachment()) { |
| 418 | return true; |
| 419 | } |
| 420 | } |
| 421 | return false; |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Get attachments |
| 426 | * |
| 427 | * @return array |
| 428 | */ |
| 429 | public function getAttachments(): array |
| 430 | { |
| 431 | $attachments = []; |
| 432 | |
| 433 | foreach ($this->parts as $part) { |
| 434 | if ($part->getBody()->isFile()) { |
| 435 | $attachments[] = $part; |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | return $attachments; |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * Get content-type |
| 444 | * |
| 445 | * @return string |
| 446 | */ |
| 447 | public function getContentType(): string |
| 448 | { |
| 449 | $contentType = null; |
| 450 | |
| 451 | if ($this->hasHeader('Content-Type') && (count($this->getHeader('Content-Type')->getValues()) == 1)) { |
| 452 | $contentType = (string)$this->getHeader('Content-Type')->getValue(0); |
| 453 | } |
| 454 | |
| 455 | return $contentType; |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * Get attachment filename |
| 460 | * |
| 461 | * @return string|null |
| 462 | */ |
| 463 | public function getFilename(): string|null |
| 464 | { |
| 465 | $filename = null; |
| 466 | |
| 467 | if ($this->getBody()->isFile()) { |
| 468 | // Check Content-Disposition header (standard) |
| 469 | if ($this->hasHeader('Content-Disposition') && (count($this->getHeader('Content-Disposition')->getValues()) == 1)) { |
| 470 | $header = $this->getHeader('Content-Disposition'); |
| 471 | if ($header->getValue(0)->hasParameter('filename')) { |
| 472 | $filename = $header->getValue(0)->getParameter('filename'); |
| 473 | } else if ($header->getValue(0)->hasParameter('name')) { |
| 474 | $filename = $header->getValue(0)->getParameter('name'); |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | // Else, check Content-Type header (non-standard) |
| 479 | if ($filename === null) { |
| 480 | if ($this->hasHeader('Content-Type') && (count($this->getHeader('Content-Type')->getValues()) == 1)) { |
| 481 | $header = $this->getHeader('Content-Type'); |
| 482 | if ($header->getValue(0)->hasParameter('filename')) { |
| 483 | $filename = $header->getValue(0)->getParameter('filename'); |
| 484 | } else if ($header->getValue(0)->hasParameter('name')) { |
| 485 | $filename = $header->getValue(0)->getParameter('name'); |
| 486 | } |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | // Else, check Content-Description header (non-standard) |
| 491 | if ($filename === null) { |
| 492 | if ($this->hasHeader('Content-Description') && (count($this->getHeader('Content-Description')->getValues()) == 1)) { |
| 493 | $header = $this->getHeader('Content-Description'); |
| 494 | if ($header->getValue(0)->hasParameter('filename')) { |
| 495 | $filename = $header->getValue(0)->getParameter('filename'); |
| 496 | } else if ($header->getValue(0)->hasParameter('name')) { |
| 497 | $filename = $header->getValue(0)->getParameter('name'); |
| 498 | } |
| 499 | } |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | // Decode filename, if encoded |
| 504 | if (($filename !== null) && (function_exists('imap_mime_header_decode')) && |
| 505 | ((str_contains($filename, 'UTF')) || (str_contains($filename, 'ISO')) || |
| 506 | (str_contains($filename, '?')) || (str_contains($filename, '=')))) { |
| 507 | $filenameAry = imap_mime_header_decode($filename); |
| 508 | if (isset($filenameAry[0]) && isset($filenameAry[0]->text)) { |
| 509 | $filename = $filenameAry[0]->text; |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | return $filename; |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * Get contents (decoded) |
| 518 | * |
| 519 | * @return mixed |
| 520 | */ |
| 521 | public function getContents(): mixed |
| 522 | { |
| 523 | $content = $this->body->getContent(); |
| 524 | |
| 525 | if ($this->body->isEncoded()) { |
| 526 | if ($this->body->isBase64Encoding()) { |
| 527 | $content = base64_decode($content); |
| 528 | } else if ($this->body->isQuotedEncoding()) { |
| 529 | $content = quoted_printable_decode($content); |
| 530 | } else if ($this->body->isUrlEncoding()) { |
| 531 | $content = urldecode($content); |
| 532 | } else if ($this->body->isRawUrlEncoding()) { |
| 533 | $content = rawurldecode($content); |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | return $content; |
| 538 | } |
| 539 | |
| 540 | /** |
| 541 | * Render the part headers |
| 542 | * |
| 543 | * @return string |
| 544 | */ |
| 545 | public function renderHeaders(): string |
| 546 | { |
| 547 | return implode("\r\n", $this->headers) . "\r\n\r\n"; |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * Render the parts |
| 552 | * |
| 553 | * @param bool $preamble |
| 554 | * @param bool $headers |
| 555 | * @return string |
| 556 | */ |
| 557 | public function renderParts(bool $preamble = true, bool $headers = true): string |
| 558 | { |
| 559 | $parts = ''; |
| 560 | |
| 561 | $boundary = (!$this->hasBoundary()) ? $this->generateBoundary() : $this->boundary; |
| 562 | if (!($this->hasHeader('Content-Type')) && ($this->hasSubType())) { |
| 563 | $this->addHeader( |
| 564 | new Part\Header('Content-Type', new Part\Header\Value('multipart/' . $this->subType, null, ['boundary' => $boundary])) |
| 565 | ); |
| 566 | } |
| 567 | if (($headers) && ($this->hasHeaders())) { |
| 568 | $parts .= $this->renderHeaders(); |
| 569 | } |
| 570 | if ($preamble) { |
| 571 | $parts .= "This is a multi-part message in MIME format.\r\n"; |
| 572 | } |
| 573 | foreach ($this->parts as $part) { |
| 574 | $parts .= "--" . $boundary . "\r\n" . $part . "\r\n"; |
| 575 | } |
| 576 | |
| 577 | $parts .= "--" . $boundary . "--\r\n"; |
| 578 | |
| 579 | return $parts; |
| 580 | } |
| 581 | |
| 582 | /** |
| 583 | * Render the part body |
| 584 | * |
| 585 | * @return string |
| 586 | */ |
| 587 | public function renderBody(): string |
| 588 | { |
| 589 | return $this->body->render(); |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Render the part |
| 594 | * |
| 595 | * @param bool $preamble |
| 596 | * @return string |
| 597 | */ |
| 598 | public function render(bool $preamble = true): string |
| 599 | { |
| 600 | $messagePart = ''; |
| 601 | |
| 602 | if ($this->hasParts()) { |
| 603 | $messagePart .= $this->renderParts($preamble); |
| 604 | } else if ($this->hasBody()) { |
| 605 | if ((!$this->hasHeader('Content-Transfer-Encoding')) && ($this->body->hasEncoding())) { |
| 606 | $encoding = null; |
| 607 | if ($this->body->isBase64Encoding()) { |
| 608 | $encoding = 'base64'; |
| 609 | } else if ($this->body->isQuotedEncoding()) { |
| 610 | $encoding = 'quoted-printable'; |
| 611 | } |
| 612 | if ($encoding !== null) { |
| 613 | $this->addHeader(new Part\Header('Content-Transfer-Encoding', $encoding)); |
| 614 | } |
| 615 | } |
| 616 | if ($this->hasHeaders()) { |
| 617 | $messagePart .= $this->renderHeaders(); |
| 618 | } |
| 619 | $messagePart .= $this->renderBody(); |
| 620 | } |
| 621 | |
| 622 | return $messagePart; |
| 623 | } |
| 624 | |
| 625 | |
| 626 | /** |
| 627 | * Render the part raw (no headers or preamble) |
| 628 | * |
| 629 | * @return string |
| 630 | */ |
| 631 | public function renderRaw(): string |
| 632 | { |
| 633 | return $this->renderParts(false, false); |
| 634 | } |
| 635 | |
| 636 | /** |
| 637 | * Render the part |
| 638 | * |
| 639 | * @return string |
| 640 | */ |
| 641 | public function __toString(): string |
| 642 | { |
| 643 | return $this->render(); |
| 644 | } |
| 645 | |
| 646 | } |