| 1 | <?php |
| 2 | /******************************************************************************** |
| 3 | * banana/mimepart.inc.php : class for MIME parts |
| 4 | * ------------------------ |
| 5 | * |
| 6 | * This file is part of the banana distribution |
| 7 | * Copyright: See COPYING files that comes with this distribution |
| 8 | ********************************************************************************/ |
| 9 | |
| 10 | class BananaMimePart |
| 11 | { |
| 12 | public $headers = null; /* Should be protected */ |
| 13 | |
| 14 | private $id = null; |
| 15 | private $content_type = null; |
| 16 | private $charset = null; |
| 17 | private $encoding = null; |
| 18 | private $disposition = null; |
| 19 | private $boundary = null; |
| 20 | private $filename = null; |
| 21 | private $format = null; |
| 22 | |
| 23 | private $body = null; |
| 24 | private $multipart = null; |
| 25 | |
| 26 | protected function __construct($data = null) |
| 27 | { |
| 28 | if (!is_null($data)) { |
| 29 | $this->fromRaw($data); |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | protected function makeTextPart($body, $content_type, $encoding, $charset = null, $format = 'fixed') |
| 34 | { |
| 35 | $this->body = $body; |
| 36 | $this->charset = $charset; |
| 37 | $this->encoding = $encoding; |
| 38 | $this->content_type = $content_type; |
| 39 | $this->format = strtolower($format); |
| 40 | $this->parse(); |
| 41 | } |
| 42 | |
| 43 | protected function makeDataPart($body, $content_type, $encoding, $filename, $disposition, $id = null) |
| 44 | { |
| 45 | $this->body = $body; |
| 46 | $this->content_type = $content_type; |
| 47 | $this->encoding = $encoding; |
| 48 | $this->filename = $filename; |
| 49 | $this->disposition = $disposition; |
| 50 | $this->id = $id; |
| 51 | if (is_null($content_type) || $content_type == 'application/octet-stream') { |
| 52 | $this->decodeContent(); |
| 53 | $this->content_type = BananaMimePart::getMimeType($body, false); |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | protected function makeFilePart($file, $content_type =null, $disposition = 'attachment') |
| 58 | { |
| 59 | $body = file_get_contents($file['tmp_name']); |
| 60 | if ($body === false || strlen($body) != $file['size']) { |
| 61 | return false; |
| 62 | } |
| 63 | if (is_null($content_type) || $content_type == 'application/octet-stream') { |
| 64 | $content_type = BananaMimePart::getMimeType($file['tmp_name']); |
| 65 | } |
| 66 | if (substr($content_type, 0, 5) == 'text/') { |
| 67 | $encoding = '8bit'; |
| 68 | } else { |
| 69 | $encoding = 'base64'; |
| 70 | $body = chunk_split(base64_encode($body)); |
| 71 | } |
| 72 | $this->filename = $file['name']; |
| 73 | $this->content_type = $content_type; |
| 74 | $this->disposition = $disposition; |
| 75 | $this->body = $body; |
| 76 | $this->encoding = $encoding; |
| 77 | return true; |
| 78 | } |
| 79 | |
| 80 | protected function makeMultiPart($body, $content_type, $encoding, $boundary) |
| 81 | { |
| 82 | $this->body = $body; |
| 83 | $this->content_type = $content_type; |
| 84 | $this->encoding = $encoding; |
| 85 | $this->boundary = $boundary; |
| 86 | $this->parse(); |
| 87 | } |
| 88 | |
| 89 | protected function convertToMultiPart() |
| 90 | { |
| 91 | if (!$this->isType('multipart', 'mixed')) { |
| 92 | $newpart = $this; |
| 93 | $this->content_type = 'multipart/mixed'; |
| 94 | $this->encoding = '8bit'; |
| 95 | $this->multipart = array($newpart); |
| 96 | $this->headers = null; |
| 97 | $this->charset = null; |
| 98 | $this->disposition = null; |
| 99 | $this->filename = null; |
| 100 | $this->boundary = null; |
| 101 | $this->body = null; |
| 102 | $this->format = null; |
| 103 | $this->id = null; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | public function addAttachment(array $file, $content_type = null, $disposition = 'attachment') |
| 108 | { |
| 109 | $newpart = new BananaMimePart; |
| 110 | if (!is_uploaded_file($file['tmp_name'])) { |
| 111 | return false; |
| 112 | } |
| 113 | if ($newpart->makeFilePart($file, $content_type, $disposition)) { |
| 114 | $this->convertToMultiPart(); |
| 115 | $this->multipart[] = $newpart; |
| 116 | return true; |
| 117 | } |
| 118 | return false; |
| 119 | } |
| 120 | |
| 121 | protected function getHeader($title, $filter = null) |
| 122 | { |
| 123 | if (!isset($this->headers[$title])) { |
| 124 | return null; |
| 125 | } |
| 126 | $header =& $this->headers[$title]; |
| 127 | if (is_null($filter)) { |
| 128 | return trim($header); |
| 129 | } elseif (preg_match($filter, $header, $matches)) { |
| 130 | return trim($matches[1]); |
| 131 | } |
| 132 | return null; |
| 133 | } |
| 134 | |
| 135 | protected function fromRaw($data) |
| 136 | { |
| 137 | if (is_array($data)) { |
| 138 | if (array_key_exists('From', $data)) { |
| 139 | $this->headers = array_map(array($this, 'decodeHeader'), array_change_key_case($data)); |
| 140 | return; |
| 141 | } else { |
| 142 | $lines = $data; |
| 143 | } |
| 144 | } else { |
| 145 | $lines = explode("\n", $data); |
| 146 | } |
| 147 | $headers = BananaMimePart::parseHeaders($lines); |
| 148 | $this->headers =& $headers; |
| 149 | if (empty($headers) || empty($lines)) { |
| 150 | return; |
| 151 | } |
| 152 | $content = join("\n", $lines); |
| 153 | $test = trim($content); |
| 154 | if (empty($test)) { |
| 155 | return; |
| 156 | } |
| 157 | |
| 158 | $content_type = strtolower($this->getHeader('content-type', '/^\s*([^ ;]+?)(;|$)/')); |
| 159 | if (empty($content_type)) { |
| 160 | $encoding = '8bit'; |
| 161 | $charset = 'CP1252'; |
| 162 | $content_type = 'text/plain'; |
| 163 | $format = strtolower($this->getHeader('x-rfc2646', '/format="?([^"]+?)"?\s*(;|$)/i')); |
| 164 | } else { |
| 165 | $encoding = strtolower($this->getHeader('content-transfer-encoding')); |
| 166 | $disposition = $this->getHeader('content-disposition', '/(inline|attachment)/i'); |
| 167 | $boundary = $this->getHeader('content-type', '/boundary="?([^"]+?)"?\s*(;|$)/i'); |
| 168 | $charset = strtolower($this->getHeader('content-type', '/charset="?([^"]+?)"?\s*(;|$)/i')); |
| 169 | $filename = $this->getHeader('content-disposition', '/filename="?([^"]+?)"?\s*(;|$)/i'); |
| 170 | $format = strtolower($this->getHeader('content-type', '/format="?([^"]+?)"?\s*(;|$)/i')); |
| 171 | $id = $this->getHeader('content-id', '/<(.*?)>/'); |
| 172 | if (empty($filename)) { |
| 173 | $filename = $this->getHeader('content-type', '/name="?([^"]+)"?/'); |
| 174 | } |
| 175 | } |
| 176 | list($type, $subtype) = explode('/', $content_type); |
| 177 | switch ($type) { |
| 178 | case 'text': case 'message': |
| 179 | $this->makeTextPart($content, $content_type, $encoding, $charset, $format); |
| 180 | break; |
| 181 | case 'multipart': |
| 182 | $this->makeMultiPart($content, $content_type, $encoding, $boundary); |
| 183 | break; |
| 184 | default: |
| 185 | $this->makeDataPart($content, $content_type, $encoding, $filename, $disposition, $id); |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | private function parse() |
| 190 | { |
| 191 | if ($this->isType('multipart')) { |
| 192 | $this->splitMultipart(); |
| 193 | } else { |
| 194 | $parts = $this->findUUEncoded(); |
| 195 | if (count($parts)) { |
| 196 | $this->convertToMultiPart(); |
| 197 | $this->multipart = array_merge(array($textpart), $parts); |
| 198 | } |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | private function splitMultipart() |
| 203 | { |
| 204 | $this->decodeContent(); |
| 205 | if (is_null($this->multipart)) { |
| 206 | $this->multipart = array(); |
| 207 | } |
| 208 | $boundary =& $this->boundary; |
| 209 | $parts = preg_split("/\n--" . preg_quote($boundary, '/') . "(--|\n)/", $this->body, -1, PREG_SPLIT_NO_EMPTY); |
| 210 | foreach ($parts as &$part) { |
| 211 | $newpart = new BananaMimePart($part); |
| 212 | if (!is_null($newpart->content_type)) { |
| 213 | $this->multipart[] = $newpart; |
| 214 | } |
| 215 | } |
| 216 | $this->body = null; |
| 217 | } |
| 218 | |
| 219 | public static function getMimeType($data, $is_filename = true) |
| 220 | { |
| 221 | if ($is_filename) { |
| 222 | $type = mime_content_type($arg); |
| 223 | } else { |
| 224 | $arg = escapeshellarg($data); |
| 225 | $type = preg_replace('/;.*/', '', trim(shell_exec("echo $arg | file -bi -"))); |
| 226 | } |
| 227 | return empty($type) ? 'application/octet-stream' : $type; |
| 228 | } |
| 229 | |
| 230 | private function findUUEncoded() |
| 231 | { |
| 232 | $this->decodeContent(); |
| 233 | $parts = array(); |
| 234 | if (preg_match_all("/\n(begin \d+ ([^\r\n]+)\r?(?:\n(?!end)[^\n]*)*\nend)/", |
| 235 | $this->body, $matches, PREG_SET_ORDER)) { |
| 236 | foreach ($matches as &$match) { |
| 237 | $data = convert_uudecode($match[1]); |
| 238 | $mime = BananaMimePart::getMimeType($data, false); |
| 239 | if ($mime != 'application/x-empty') { |
| 240 | $this->body = trim(str_replace($match[0], '', $this->body)); |
| 241 | $newpart = new BananaMimePart; |
| 242 | $newpart->makeDataPart($data, $mime, '8bit', $match[2], 'attachment'); |
| 243 | $parts[] = $newpart; |
| 244 | } |
| 245 | } |
| 246 | } |
| 247 | return $parts; |
| 248 | } |
| 249 | |
| 250 | static private function _decodeHeader($charset, $c, $str) |
| 251 | { |
| 252 | $s = ($c == 'Q' || $c == 'q') ? quoted_printable_decode($str) : base64_decode($str); |
| 253 | $s = @iconv($charset, 'UTF-8', $s); |
| 254 | return str_replace('_', ' ', $s); |
| 255 | } |
| 256 | |
| 257 | static public function decodeHeader(&$val, $key) |
| 258 | { |
| 259 | if (preg_match('/[\x80-\xff]/', $val)) { |
| 260 | if (!is_utf8($val)) { |
| 261 | $val = utf8_encode($val); |
| 262 | } |
| 263 | } else { |
| 264 | $val = preg_replace('/(=\?.*?\?[bq]\?.*?\?=) (=\?.*?\?[bq]\?.*?\?=)/i', '\1\2', $val); |
| 265 | $val = preg_replace('/=\?(.*?)\?([bq])\?(.*?)\?=/ie', 'BananaMimePart::_decodeHeader("\1", "\2", "\3")', $val); |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | static public function &parseHeaders(array &$lines) |
| 270 | { |
| 271 | $headers = array(); |
| 272 | while (count($lines)) { |
| 273 | $line = array_shift($lines); |
| 274 | if (preg_match('/^[\t\r ]+/', $line) && isset($hdr)) { |
| 275 | $headers[$hdr] .= ' ' . trim($line); |
| 276 | } elseif (!empty($line)) { |
| 277 | if (preg_match("/:[ \t\r]*/", $line)) { |
| 278 | list($hdr, $val) = split(":[ \t\r]*", $line, 2); |
| 279 | $hdr = strtolower($hdr); |
| 280 | if (in_array($hdr, Banana::$msgparse_headers)) { |
| 281 | $headers[$hdr] = $val; |
| 282 | } else { |
| 283 | unset($hdr); |
| 284 | } |
| 285 | } |
| 286 | } else { |
| 287 | break; |
| 288 | } |
| 289 | } |
| 290 | array_walk($headers, array('BananaMimePart', 'decodeHeader')); |
| 291 | return $headers; |
| 292 | } |
| 293 | |
| 294 | static public function encodeHeader($value, $trim = 0) |
| 295 | { |
| 296 | if ($trim) { |
| 297 | if (strlen($value) > $trim) { |
| 298 | $value = substr($value, 0, $trim); |
| 299 | } |
| 300 | } |
| 301 | if (preg_match('/[\x80-\xff]/', $value)) { |
| 302 | return '=?UTF-8?B?' . base64_encode($value) . '?='; |
| 303 | } |
| 304 | return $value; |
| 305 | } |
| 306 | |
| 307 | private function decodeContent() |
| 308 | { |
| 309 | $encodings = Array('quoted-printable' => 'quoted_printable_decode', |
| 310 | 'base64' => 'base64_decode', |
| 311 | 'x-uuencode' => 'convert_uudecode'); |
| 312 | foreach ($encodings as $encoding => $callback) { |
| 313 | if ($this->encoding == $encoding) { |
| 314 | $this->body = $callback($this->body); |
| 315 | $this->encoding = '8bit'; |
| 316 | break; |
| 317 | } |
| 318 | } |
| 319 | if (!$this->isType('text')) { |
| 320 | return; |
| 321 | } |
| 322 | |
| 323 | if (!is_null($this->charset)) { |
| 324 | $body = iconv($this->charset, 'UTF-8//IGNORE', $this->body); |
| 325 | if (empty($body)) { |
| 326 | return; |
| 327 | } |
| 328 | $this->body = $body; |
| 329 | } else { |
| 330 | $this->body = utf8_encode($this->body); |
| 331 | } |
| 332 | $this->charset = 'utf-8'; |
| 333 | } |
| 334 | |
| 335 | public function send($force_inline = false) |
| 336 | { |
| 337 | $this->decodeContent(); |
| 338 | if ($force_inline) { |
| 339 | $dispostion = $this->disposition; |
| 340 | $this->disposition = 'inline'; |
| 341 | } |
| 342 | $headers = $this->getHeaders(); |
| 343 | foreach ($headers as $key => $value) { |
| 344 | header("$key: $value"); |
| 345 | } |
| 346 | if ($force_inline) { |
| 347 | $this->disposition = $disposition; |
| 348 | } |
| 349 | echo $this->body; |
| 350 | exit; |
| 351 | } |
| 352 | |
| 353 | private function setBoundary() |
| 354 | { |
| 355 | if ($this->isType('multipart') && is_null($this->boundary)) { |
| 356 | $this->boundary = '--banana-bound-' . time() . rand(0, 255) . '-'; |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | public function getHeaders() |
| 361 | { |
| 362 | $headers = array(); |
| 363 | $this->setBoundary(); |
| 364 | $headers['Content-Type'] = $this->content_type . ";" |
| 365 | . ($this->filename ? " name=\"{$this->filename}\";" : '') |
| 366 | . ($this->charset ? " charset=\"{$this->charset}\";" : '') |
| 367 | . ($this->boundary ? " boundary=\"{$this->boundary}\";" : ""); |
| 368 | if ($this->encoding) { |
| 369 | $headers['Content-Transfer-Encoding'] = $this->encoding; |
| 370 | } |
| 371 | if ($this->disposition) { |
| 372 | $headers['Content-Disposition'] = $this->disposition |
| 373 | . ($this->filename ? "; filename=\"{$this->filename}\"" : ''); |
| 374 | } |
| 375 | return array_map(array($this, 'encodeHeader'), $headers); |
| 376 | } |
| 377 | |
| 378 | public function hasBody() |
| 379 | { |
| 380 | if (is_null($this->content) && !$this->isType('multipart')) { |
| 381 | return false; |
| 382 | } |
| 383 | return true; |
| 384 | } |
| 385 | |
| 386 | public function get($with_headers = false) |
| 387 | { |
| 388 | $content = ""; |
| 389 | if ($with_headers) { |
| 390 | foreach ($this->getHeaders() as $key => $value) { |
| 391 | $content .= "$key: $value\n"; |
| 392 | } |
| 393 | $content .= "\n"; |
| 394 | } |
| 395 | if ($this->isType('multipart')) { |
| 396 | $this->setBoundary(); |
| 397 | foreach ($this->multipart as &$part) { |
| 398 | $content .= "\n--{$this->boundary}\n" . $part->get(true); |
| 399 | } |
| 400 | $content .= "\n--{$this->boundary}--"; |
| 401 | } else { |
| 402 | $content .= $this->body; |
| 403 | } |
| 404 | return $content; |
| 405 | } |
| 406 | |
| 407 | public function getText() |
| 408 | { |
| 409 | $this->decodeContent(); |
| 410 | return $this->body; |
| 411 | } |
| 412 | |
| 413 | public function toHtml() |
| 414 | { |
| 415 | list($type, $subtype) = $this->getType(); |
| 416 | if ($type == 'image') { |
| 417 | $part = $this->id ? $this->id : $this->filename; |
| 418 | return '<img src="' |
| 419 | . banana_htmlentities(Banana::$page->makeUrl(array('group' => Banana::$group, |
| 420 | 'artid' => Banana::$artid, |
| 421 | 'part' => $part))) |
| 422 | . '" alt="' . banana_htmlentities($this->filename) . '" />'; |
| 423 | } elseif (!in_array($type, Banana::$msgshow_mimeparts) |
| 424 | && !in_array($this->content_type, Banana::$msgshow_mimeparts)) { |
| 425 | $part = $this->id ? $this->id : $this->filename; |
| 426 | if (!$part) { |
| 427 | $part = $this->content_type; |
| 428 | } |
| 429 | return '[' . Banana::$page->makeImgLink(array('group' => Banana::$group, |
| 430 | 'artid' => Banana::$artid, |
| 431 | 'part' => $part, |
| 432 | 'text' => $this->filename ? $this->filename : $this->content_type, |
| 433 | 'img' => 'save')) . ']'; |
| 434 | } else { |
| 435 | if ($type == 'multipart' && ($subtype == 'mixed' || $subtype == 'report')) { |
| 436 | $text = ''; |
| 437 | foreach ($this->multipart as &$part) { |
| 438 | $text .= $part->toHtml(); |
| 439 | } |
| 440 | return $text; |
| 441 | } |
| 442 | switch ($subtype) { |
| 443 | case 'html': return banana_formatHtml($this); |
| 444 | case 'enriched': case 'richtext': return banana_formatRichText($this); |
| 445 | default: |
| 446 | if ($type == 'message') { |
| 447 | return '<hr />' . banana_formatPlainText($this); |
| 448 | } |
| 449 | return banana_formatPlainText($this); |
| 450 | } |
| 451 | } |
| 452 | return null; |
| 453 | } |
| 454 | |
| 455 | public function quote() |
| 456 | { |
| 457 | list($type, $subtype) = $this->getType(); |
| 458 | if (in_array($type, Banana::$msgedit_mimeparts) || in_array($this->content_type, Banana::$msgedit_mimeparts)) { |
| 459 | if ($type == 'multipart' && ($subtype == 'mixed' || $subtype == 'report')) { |
| 460 | $text = ''; |
| 461 | foreach ($this->multipart as &$part) { |
| 462 | $qt = $part->quote(); |
| 463 | $qt = rtrim($qt); |
| 464 | if (!empty($text)) { |
| 465 | $text .= "\n" . banana_quote("", 1) . "\n"; |
| 466 | } |
| 467 | $text .= $qt; |
| 468 | } |
| 469 | return $text; |
| 470 | } |
| 471 | switch ($subtype) { |
| 472 | case 'html': return banana_quoteHtml($this); |
| 473 | case 'enriched': case 'richtext': return banana_quoteRichText($this); |
| 474 | default: return banana_quotePlainText($this); |
| 475 | } |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | protected function getType() |
| 480 | { |
| 481 | return explode('/', $this->content_type); |
| 482 | } |
| 483 | |
| 484 | protected function isType($type, $subtype = null) |
| 485 | { |
| 486 | list($mytype, $mysub) = $this->getType(); |
| 487 | return ($mytype == $type) && (is_null($subtype) || $mysub == $subtype); |
| 488 | } |
| 489 | |
| 490 | public function isFlowed() |
| 491 | { |
| 492 | return $this->format == 'flowed'; |
| 493 | } |
| 494 | |
| 495 | public function getFilename() |
| 496 | { |
| 497 | return $this->filename; |
| 498 | } |
| 499 | |
| 500 | protected function getParts($type, $subtype = null) |
| 501 | { |
| 502 | $parts = array(); |
| 503 | if ($this->isType($type, $subtype)) { |
| 504 | return array($this); |
| 505 | } elseif ($this->isType('multipart')) { |
| 506 | foreach ($this->multipart as &$part) { |
| 507 | $parts = array_merge($parts, $part->getParts($type, $subtype)); |
| 508 | } |
| 509 | } |
| 510 | return $parts; |
| 511 | } |
| 512 | |
| 513 | public function getFile($filename) |
| 514 | { |
| 515 | if ($this->filename == $filename) { |
| 516 | return $this; |
| 517 | } elseif ($this->isType('multipart')) { |
| 518 | foreach ($this->multipart as &$part) { |
| 519 | $file = $part->getFile($filename); |
| 520 | if (!is_null($file)) { |
| 521 | return $file; |
| 522 | } |
| 523 | } |
| 524 | } |
| 525 | return null; |
| 526 | } |
| 527 | |
| 528 | public function getAttachments() |
| 529 | { |
| 530 | if (!is_null($this->filename)) { |
| 531 | return array($this); |
| 532 | } elseif ($this->isType('multipart')) { |
| 533 | $parts = array(); |
| 534 | foreach ($this->multipart as &$part) { |
| 535 | $parts = array_merge($parts, $part->getAttachments()); |
| 536 | } |
| 537 | return $parts; |
| 538 | } |
| 539 | return array(); |
| 540 | } |
| 541 | |
| 542 | public function getPartById($id) |
| 543 | { |
| 544 | if ($this->id == $id) { |
| 545 | return $this; |
| 546 | } elseif ($this->isType('multipart')) { |
| 547 | foreach ($this->multipart as &$part) { |
| 548 | $res = $part->getPartById($id); |
| 549 | if (!is_null($res)) { |
| 550 | return $res; |
| 551 | } |
| 552 | } |
| 553 | } |
| 554 | return null; |
| 555 | } |
| 556 | } |
| 557 | |
| 558 | // vim:set et sw=4 sts=4 ts=4 enc=utf-8: |
| 559 | ?> |