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| 1 | <?php declare(strict_types=1); |
| 2 | /* |
| 3 | * This file is part of Aplus Framework Email Library. |
| 4 | * |
| 5 | * (c) Natan Felles <natanfelles@gmail.com> |
| 6 | * |
| 7 | * For the full copyright and license information, please view the LICENSE |
| 8 | * file that was distributed with this source code. |
| 9 | */ |
| 10 | namespace Framework\Email; |
| 11 | |
| 12 | use DateTime; |
| 13 | use JetBrains\PhpStorm\Language; |
| 14 | use LogicException; |
| 15 | |
| 16 | /** |
| 17 | * Class Message. |
| 18 | * |
| 19 | * @package email |
| 20 | */ |
| 21 | class Message implements \Stringable |
| 22 | { |
| 23 | /** |
| 24 | * The Mailer instance. |
| 25 | * |
| 26 | * @var Mailer |
| 27 | */ |
| 28 | protected Mailer $mailer; |
| 29 | /** |
| 30 | * The message boundary. |
| 31 | * |
| 32 | * @var string |
| 33 | */ |
| 34 | protected string $boundary; |
| 35 | /** |
| 36 | * @var array<string,string> |
| 37 | */ |
| 38 | protected array $headers = [ |
| 39 | 'mime-version' => '1.0', |
| 40 | ]; |
| 41 | /** |
| 42 | * A list of attachments with Content-Disposition equals `attachment`. |
| 43 | * |
| 44 | * @var array<int,string> The filenames |
| 45 | */ |
| 46 | protected array $attachments = []; |
| 47 | /** |
| 48 | * An associative array of attachments with Content-Disposition equals `inline`. |
| 49 | * |
| 50 | * @var array<string,string> The Content-ID's as keys and the filenames as values |
| 51 | */ |
| 52 | protected array $inlineAttachments = []; |
| 53 | /** |
| 54 | * The plain text message. |
| 55 | * |
| 56 | * @var string |
| 57 | */ |
| 58 | protected string $plainMessage; |
| 59 | /** |
| 60 | * The HTML message. |
| 61 | * |
| 62 | * @var string |
| 63 | */ |
| 64 | protected string $htmlMessage; |
| 65 | /** |
| 66 | * An associative array used in the `To` header. |
| 67 | * |
| 68 | * @var array<string,string|null> The email addresses as keys and the optional |
| 69 | * name as values |
| 70 | */ |
| 71 | protected array $to = []; |
| 72 | /** |
| 73 | * An associative array used in the `Cc` header. |
| 74 | * |
| 75 | * @var array<string,string|null> The email addresses as keys and the optional |
| 76 | * name as values |
| 77 | */ |
| 78 | protected array $cc = []; |
| 79 | /** |
| 80 | * An associative array used in the `Bcc` header. |
| 81 | * |
| 82 | * @var array<string,string|null> The email addresses as keys and the optional |
| 83 | * name as values |
| 84 | */ |
| 85 | protected array $bcc = []; |
| 86 | /** |
| 87 | * An associative array used in the `Reply-To` header. |
| 88 | * |
| 89 | * @var array<string,string|null> The email addresses as keys and the optional |
| 90 | * name as values |
| 91 | */ |
| 92 | protected array $replyTo = []; |
| 93 | /** |
| 94 | * The values used in the `From` header. |
| 95 | * |
| 96 | * @var array<int,string|null> The email address as in the index 0 and the |
| 97 | * optional name in the index 1 |
| 98 | */ |
| 99 | protected array $from = []; |
| 100 | /** |
| 101 | * The message Date. |
| 102 | * |
| 103 | * @var string|null |
| 104 | */ |
| 105 | protected ?string $date = null; |
| 106 | /** |
| 107 | * The message X-Priority. |
| 108 | * |
| 109 | * @var XPriority |
| 110 | */ |
| 111 | protected XPriority $xPriority; |
| 112 | |
| 113 | public function __toString() : string |
| 114 | { |
| 115 | return $this->renderData(); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * @param Mailer $mailer The Mailer instance |
| 120 | * |
| 121 | * @return static |
| 122 | */ |
| 123 | public function setMailer(Mailer $mailer) : static |
| 124 | { |
| 125 | $this->mailer = $mailer; |
| 126 | return $this; |
| 127 | } |
| 128 | |
| 129 | protected function getCrlf() : string |
| 130 | { |
| 131 | if (isset($this->mailer)) { |
| 132 | return $this->mailer->getCrlf(); |
| 133 | } |
| 134 | return "\r\n"; |
| 135 | } |
| 136 | |
| 137 | protected function getCharset() : string |
| 138 | { |
| 139 | if (isset($this->mailer)) { |
| 140 | return $this->mailer->getCharset(); |
| 141 | } |
| 142 | return 'utf-8'; |
| 143 | } |
| 144 | |
| 145 | public function setBoundary(string $boundary = null) : static |
| 146 | { |
| 147 | $this->boundary = $boundary ?? \bin2hex(\random_bytes(16)); |
| 148 | return $this; |
| 149 | } |
| 150 | |
| 151 | public function getBoundary() : string |
| 152 | { |
| 153 | if ( ! isset($this->boundary)) { |
| 154 | $this->setBoundary(); |
| 155 | } |
| 156 | return $this->boundary; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * @param string $name |
| 161 | * @param string $value |
| 162 | * |
| 163 | * @return static |
| 164 | */ |
| 165 | public function setHeader(string $name, string $value) : static |
| 166 | { |
| 167 | $this->headers[\strtolower($name)] = $value; |
| 168 | return $this; |
| 169 | } |
| 170 | |
| 171 | public function getHeader(string $name) : ?string |
| 172 | { |
| 173 | return $this->headers[\strtolower($name)] ?? null; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * @return array<string,string> |
| 178 | */ |
| 179 | public function getHeaders() : array |
| 180 | { |
| 181 | return $this->headers; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * @return array<int,string> |
| 186 | */ |
| 187 | public function getHeaderLines() : array |
| 188 | { |
| 189 | $lines = []; |
| 190 | foreach ($this->getHeaders() as $name => $value) { |
| 191 | $lines[] = Header::getName($name) . ': ' . $value; |
| 192 | } |
| 193 | return $lines; |
| 194 | } |
| 195 | |
| 196 | protected function renderHeaders() : string |
| 197 | { |
| 198 | return \implode($this->getCrlf(), $this->getHeaderLines()); |
| 199 | } |
| 200 | |
| 201 | protected function prepareHeaders() : void |
| 202 | { |
| 203 | if ( ! $this->getDate()) { |
| 204 | $this->setDate(); |
| 205 | } |
| 206 | $multipart = $this->getInlineAttachments() ? 'related' : 'mixed'; |
| 207 | $this->setHeader( |
| 208 | Header::CONTENT_TYPE, |
| 209 | 'multipart/' . $multipart . '; boundary="mixed-' . $this->getBoundary() . '"' |
| 210 | ); |
| 211 | } |
| 212 | |
| 213 | protected function renderData() : string |
| 214 | { |
| 215 | $boundary = $this->getBoundary(); |
| 216 | $crlf = $this->getCrlf(); |
| 217 | $this->prepareHeaders(); |
| 218 | $data = $this->renderHeaders() . $crlf . $crlf; |
| 219 | $data .= '--mixed-' . $boundary . $crlf; |
| 220 | $data .= 'Content-Type: multipart/alternative; boundary="alt-' . $boundary . '"' |
| 221 | . $crlf . $crlf; |
| 222 | $data .= $this->renderPlainMessage(); |
| 223 | $data .= $this->renderHtmlMessage(); |
| 224 | $data .= '--alt-' . $boundary . '--' . $crlf . $crlf; |
| 225 | $data .= $this->renderAttachments(); |
| 226 | $data .= $this->renderInlineAttachments(); |
| 227 | $data .= '--mixed-' . $boundary . '--'; |
| 228 | return $data; |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * @param string $message |
| 233 | * |
| 234 | * @return static |
| 235 | */ |
| 236 | public function setPlainMessage(string $message) : static |
| 237 | { |
| 238 | $this->plainMessage = $message; |
| 239 | return $this; |
| 240 | } |
| 241 | |
| 242 | public function getPlainMessage() : ?string |
| 243 | { |
| 244 | return $this->plainMessage ?? null; |
| 245 | } |
| 246 | |
| 247 | protected function renderPlainMessage() : ?string |
| 248 | { |
| 249 | $message = $this->getPlainMessage(); |
| 250 | return $message !== null ? $this->renderMessage($message, 'text/plain') : null; |
| 251 | } |
| 252 | |
| 253 | /** |
| 254 | * @param string $message |
| 255 | * |
| 256 | * @return static |
| 257 | */ |
| 258 | public function setHtmlMessage(#[Language('HTML')] string $message) : static |
| 259 | { |
| 260 | $this->htmlMessage = $message; |
| 261 | return $this; |
| 262 | } |
| 263 | |
| 264 | public function getHtmlMessage() : ?string |
| 265 | { |
| 266 | return $this->htmlMessage ?? null; |
| 267 | } |
| 268 | |
| 269 | protected function renderHtmlMessage() : ?string |
| 270 | { |
| 271 | $message = $this->getHtmlMessage(); |
| 272 | return $message !== null ? $this->renderMessage($message) : null; |
| 273 | } |
| 274 | |
| 275 | protected function renderMessage( |
| 276 | string $message, |
| 277 | string $contentType = 'text/html' |
| 278 | ) : string { |
| 279 | $message = \base64_encode($message); |
| 280 | $crlf = $this->getCrlf(); |
| 281 | $part = '--alt-' . $this->getBoundary() . $crlf; |
| 282 | $part .= 'Content-Type: ' . $contentType . '; charset=' |
| 283 | . $this->getCharset() . $crlf; |
| 284 | $part .= 'Content-Transfer-Encoding: base64' . $crlf . $crlf; |
| 285 | $part .= \chunk_split($message) . $crlf; |
| 286 | return $part; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * @return array<int,string> |
| 291 | */ |
| 292 | public function getAttachments() : array |
| 293 | { |
| 294 | return $this->attachments; |
| 295 | } |
| 296 | |
| 297 | /** |
| 298 | * @param string $filename The filename |
| 299 | * |
| 300 | * @return static |
| 301 | */ |
| 302 | public function addAttachment(string $filename) : static |
| 303 | { |
| 304 | $this->attachments[] = $filename; |
| 305 | return $this; |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * @param string $filename The filename |
| 310 | * @param string $cid The Content-ID |
| 311 | * |
| 312 | * @return static |
| 313 | */ |
| 314 | public function setInlineAttachment(string $filename, string $cid) : static |
| 315 | { |
| 316 | $this->inlineAttachments[$cid] = $filename; |
| 317 | return $this; |
| 318 | } |
| 319 | |
| 320 | /** |
| 321 | * @return array<string,string> |
| 322 | */ |
| 323 | public function getInlineAttachments() : array |
| 324 | { |
| 325 | return $this->inlineAttachments; |
| 326 | } |
| 327 | |
| 328 | protected function renderAttachments() : string |
| 329 | { |
| 330 | $part = ''; |
| 331 | $crlf = $this->getCrlf(); |
| 332 | foreach ($this->getAttachments() as $attachment) { |
| 333 | if ( ! \is_file($attachment)) { |
| 334 | throw new LogicException('Attachment file not found: ' . $attachment); |
| 335 | } |
| 336 | $filename = \pathinfo($attachment, \PATHINFO_BASENAME); |
| 337 | $filename = \htmlspecialchars($filename, \ENT_QUOTES | \ENT_HTML5); |
| 338 | $contents = \file_get_contents($attachment); |
| 339 | $contents = \base64_encode($contents); // @phpstan-ignore-line |
| 340 | $part .= '--mixed-' . $this->getBoundary() . $crlf; |
| 341 | $part .= 'Content-Type: ' . $this->getContentType($attachment) |
| 342 | . '; name="' . $filename . '"' . $crlf; |
| 343 | $part .= 'Content-Disposition: attachment; filename="' . $filename . '"' . $crlf; |
| 344 | $part .= 'Content-Transfer-Encoding: base64' . $crlf . $crlf; |
| 345 | $part .= \chunk_split($contents) . $crlf; |
| 346 | } |
| 347 | return $part; |
| 348 | } |
| 349 | |
| 350 | protected function getContentType(string $filename) : string |
| 351 | { |
| 352 | return \mime_content_type($filename) ?: 'application/octet-stream'; |
| 353 | } |
| 354 | |
| 355 | protected function renderInlineAttachments() : string |
| 356 | { |
| 357 | $part = ''; |
| 358 | $crlf = $this->getCrlf(); |
| 359 | foreach ($this->getInlineAttachments() as $cid => $filename) { |
| 360 | if ( ! \is_file($filename)) { |
| 361 | throw new LogicException('Inline attachment file not found: ' . $filename); |
| 362 | } |
| 363 | $contents = \file_get_contents($filename); |
| 364 | $contents = \base64_encode($contents); // @phpstan-ignore-line |
| 365 | $part .= '--mixed-' . $this->getBoundary() . $crlf; |
| 366 | $part .= 'Content-ID: ' . $cid . $crlf; |
| 367 | $part .= 'Content-Type: ' . $this->getContentType($filename) . $crlf; |
| 368 | $part .= 'Content-Disposition: inline' . $crlf; |
| 369 | $part .= 'Content-Transfer-Encoding: base64' . $crlf . $crlf; |
| 370 | $part .= \chunk_split($contents) . $crlf; |
| 371 | } |
| 372 | return $part; |
| 373 | } |
| 374 | |
| 375 | /** |
| 376 | * @param string $subject |
| 377 | * |
| 378 | * @return static |
| 379 | */ |
| 380 | public function setSubject(string $subject) : static |
| 381 | { |
| 382 | $this->setHeader(Header::SUBJECT, $subject); |
| 383 | return $this; |
| 384 | } |
| 385 | |
| 386 | public function getSubject() : ?string |
| 387 | { |
| 388 | return $this->getHeader(Header::SUBJECT); |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * @param string $address |
| 393 | * @param string|null $name |
| 394 | * |
| 395 | * @return static |
| 396 | */ |
| 397 | public function addTo(string $address, string $name = null) : static |
| 398 | { |
| 399 | $this->to[$address] = $name; |
| 400 | $this->setHeader(Header::TO, static::formatAddressList($this->to)); |
| 401 | return $this; |
| 402 | } |
| 403 | |
| 404 | /** |
| 405 | * @return array<string,string|null> |
| 406 | */ |
| 407 | public function getTo() : array |
| 408 | { |
| 409 | return $this->to; |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * Add Carbon Copy email address. |
| 414 | * |
| 415 | * @param string $address |
| 416 | * @param string|null $name |
| 417 | * |
| 418 | * @return static |
| 419 | */ |
| 420 | public function addCc(string $address, string $name = null) : static |
| 421 | { |
| 422 | $this->cc[$address] = $name; |
| 423 | $this->setHeader(Header::CC, static::formatAddressList($this->cc)); |
| 424 | return $this; |
| 425 | } |
| 426 | |
| 427 | /** |
| 428 | * @return array<string,string|null> |
| 429 | */ |
| 430 | public function getCc() : array |
| 431 | { |
| 432 | return $this->cc; |
| 433 | } |
| 434 | |
| 435 | /** |
| 436 | * @return array<int,string> |
| 437 | */ |
| 438 | public function getRecipients() : array |
| 439 | { |
| 440 | $recipients = \array_replace($this->getTo(), $this->getCc()); |
| 441 | return \array_keys($recipients); |
| 442 | } |
| 443 | |
| 444 | /** |
| 445 | * Add Blind Carbon Copy email address. |
| 446 | * |
| 447 | * @param string $address |
| 448 | * @param string|null $name |
| 449 | * |
| 450 | * @return static |
| 451 | */ |
| 452 | public function addBcc(string $address, string $name = null) : static |
| 453 | { |
| 454 | $this->bcc[$address] = $name; |
| 455 | $this->setHeader(Header::BCC, static::formatAddressList($this->bcc)); |
| 456 | return $this; |
| 457 | } |
| 458 | |
| 459 | /** |
| 460 | * @return array<string,string|null> |
| 461 | */ |
| 462 | public function getBcc() : array |
| 463 | { |
| 464 | return $this->bcc; |
| 465 | } |
| 466 | |
| 467 | /** |
| 468 | * @param string $address |
| 469 | * @param string|null $name |
| 470 | * |
| 471 | * @return static |
| 472 | */ |
| 473 | public function addReplyTo(string $address, string $name = null) : static |
| 474 | { |
| 475 | $this->replyTo[$address] = $name; |
| 476 | $this->setHeader(Header::REPLY_TO, static::formatAddressList($this->replyTo)); |
| 477 | return $this; |
| 478 | } |
| 479 | |
| 480 | /** |
| 481 | * @return array<string,string|null> |
| 482 | */ |
| 483 | public function getReplyTo() : array |
| 484 | { |
| 485 | return $this->replyTo; |
| 486 | } |
| 487 | |
| 488 | /** |
| 489 | * @param string $address |
| 490 | * @param string|null $name |
| 491 | * |
| 492 | * @return static |
| 493 | */ |
| 494 | public function setFrom(string $address, string $name = null) : static |
| 495 | { |
| 496 | $this->from = [$address, $name]; |
| 497 | $this->setHeader(Header::FROM, static::formatAddress($address, $name)); |
| 498 | return $this; |
| 499 | } |
| 500 | |
| 501 | /** |
| 502 | * @return array<int,string|null> |
| 503 | */ |
| 504 | public function getFrom() : array |
| 505 | { |
| 506 | return $this->from; |
| 507 | } |
| 508 | |
| 509 | public function getFromAddress() : ?string |
| 510 | { |
| 511 | return $this->from[0] ?? null; |
| 512 | } |
| 513 | |
| 514 | public function getFromName() : ?string |
| 515 | { |
| 516 | return $this->from[1] ?? null; |
| 517 | } |
| 518 | |
| 519 | /** |
| 520 | * @param DateTime|null $datetime |
| 521 | * |
| 522 | * @return static |
| 523 | */ |
| 524 | public function setDate(DateTime $datetime = null) : static |
| 525 | { |
| 526 | $date = $datetime ? $datetime->format('r') : \date('r'); |
| 527 | $this->setHeader(Header::DATE, $date); |
| 528 | return $this; |
| 529 | } |
| 530 | |
| 531 | public function getDate() : ?string |
| 532 | { |
| 533 | return $this->getHeader(Header::DATE); |
| 534 | } |
| 535 | |
| 536 | /** |
| 537 | * @param XPriority $priority |
| 538 | * |
| 539 | * @return static |
| 540 | */ |
| 541 | public function setXPriority(XPriority $priority) : static |
| 542 | { |
| 543 | $this->xPriority = $priority; |
| 544 | $this->setHeader(Header::X_PRIORITY, (string) $priority->value); |
| 545 | return $this; |
| 546 | } |
| 547 | |
| 548 | public function getXPriority() : ?XPriority |
| 549 | { |
| 550 | return $this->xPriority ?? null; |
| 551 | } |
| 552 | |
| 553 | protected static function formatAddress(string $address, string $name = null) : string |
| 554 | { |
| 555 | return $name !== null ? '"' . $name . '" <' . $address . '>' : $address; |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * @param array<string,string|null> $addresses |
| 560 | * |
| 561 | * @return string |
| 562 | */ |
| 563 | protected static function formatAddressList(array $addresses) : string |
| 564 | { |
| 565 | $data = []; |
| 566 | foreach ($addresses as $address => $name) { |
| 567 | $data[] = static::formatAddress($address, $name); |
| 568 | } |
| 569 | return \implode(', ', $data); |
| 570 | } |
| 571 | } |