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1 | <?php |
2 | |
3 | /** |
4 | * Message.class.php |
5 | * |
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6 | * This file contains functions needed to handle mime messages. |
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7 | * |
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8 | * @copyright 2003-2012 The SquirrelMail Project Team |
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9 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
883d9cd3 |
10 | * @version $Id$ |
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11 | * @package squirrelmail |
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12 | * @subpackage mime |
13 | * @since 1.3.2 |
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14 | */ |
15 | |
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16 | /** |
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17 | * The object that contains a message. |
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18 | * |
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19 | * message is the object that contains messages. It is a recursive object in |
20 | * that through the $entities variable, it can contain more objects of type |
21 | * message. See documentation in mime.txt for a better description of how this |
22 | * works. |
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23 | * @package squirrelmail |
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24 | * @subpackage mime |
25 | * @since 1.3.0 |
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26 | */ |
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27 | class Message { |
9ed80157 |
28 | /** |
29 | * rfc822header object |
30 | * @var object |
31 | */ |
32 | var $rfc822_header = ''; |
33 | /** |
34 | * MessageHeader object |
35 | * @var object |
36 | */ |
37 | var $mime_header = ''; |
38 | /** |
39 | * @var mixed |
40 | */ |
41 | var $flags = ''; |
42 | /** |
43 | * Media type |
44 | * @var string |
45 | */ |
46 | var $type0=''; |
47 | /** |
48 | * Media subtype |
49 | * @var string |
50 | */ |
51 | var $type1=''; |
52 | /** |
53 | * Nested mime parts |
54 | * @var array |
55 | */ |
56 | var $entities = array(); |
57 | /** |
58 | * Message part id |
59 | * @var string |
60 | */ |
61 | var $entity_id = ''; |
62 | /** |
63 | * Parent message part id |
64 | * @var string |
65 | */ |
66 | var $parent_ent; |
67 | /** |
68 | * @var mixed |
69 | */ |
70 | var $entity; |
71 | /** |
72 | * @var mixed |
73 | */ |
74 | var $parent = ''; |
75 | /** |
76 | * @var string |
77 | */ |
78 | var $decoded_body=''; |
79 | /** |
80 | * Message \seen status |
81 | * @var boolean |
82 | */ |
83 | var $is_seen = 0; |
84 | /** |
85 | * Message \answered status |
86 | * @var boolean |
87 | */ |
88 | var $is_answered = 0; |
1a753239 |
89 | /** |
90 | * Message forward status |
91 | * @var boolean |
92 | */ |
93 | var $is_forwarded = 0; |
9ed80157 |
94 | /** |
95 | * Message \deleted status |
96 | * @var boolean |
97 | */ |
98 | var $is_deleted = 0; |
99 | /** |
100 | * Message \flagged status |
101 | * @var boolean |
102 | */ |
103 | var $is_flagged = 0; |
104 | /** |
105 | * Message mdn status |
106 | * @var boolean |
107 | */ |
108 | var $is_mdnsent = 0; |
109 | /** |
110 | * Message text body |
111 | * @var string |
112 | */ |
113 | var $body_part = ''; |
114 | /** |
115 | * Message part offset |
116 | * for fetching body parts out of raw messages |
117 | * @var integer |
118 | */ |
119 | var $offset = 0; |
120 | /** |
121 | * Message part length |
122 | * for fetching body parts out of raw messages |
123 | * @var integer |
124 | */ |
125 | var $length = 0; |
126 | /** |
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127 | * Local attachment filename location where the tempory attachment is |
128 | * stored. For use in delivery class. |
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129 | * @var string |
130 | */ |
131 | var $att_local_name = ''; |
132 | |
133 | /** |
134 | * @param string $ent entity id |
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135 | */ |
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136 | function setEnt($ent) { |
137 | $this->entity_id= $ent; |
138 | } |
139 | |
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140 | /** |
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141 | * Add nested message part |
142 | * @param object $msg |
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143 | */ |
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144 | function addEntity ($msg) { |
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145 | $this->entities[] = $msg; |
146 | } |
147 | |
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148 | /** |
149 | * Get file name used for mime part |
150 | * @return string file name |
151 | * @since 1.3.2 |
152 | */ |
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153 | function getFilename() { |
02474e43 |
154 | $filename = ''; |
155 | $header = $this->header; |
156 | if (is_object($header->disposition)) { |
157 | $filename = $header->disposition->getProperty('filename'); |
158 | if (trim($filename) == '') { |
159 | $name = decodeHeader($header->disposition->getProperty('name')); |
160 | if (!trim($name)) { |
161 | $name = $header->getParameter('name'); |
162 | if(!trim($name)) { |
163 | if (!trim( $header->id )) { |
ace33b58 |
164 | $filename = 'untitled-[' . $this->entity_id . ']' . '.' . strtolower($header->type1); |
02474e43 |
165 | } else { |
ace33b58 |
166 | $filename = 'cid: ' . $header->id . '.' . strtolower($header->type1); |
02474e43 |
167 | } |
168 | } else { |
169 | $filename = $name; |
170 | } |
171 | } else { |
172 | $filename = $name; |
173 | } |
174 | } |
175 | } else { |
176 | $filename = $header->getParameter('filename'); |
177 | if (!trim($filename)) { |
178 | $filename = $header->getParameter('name'); |
179 | if (!trim($filename)) { |
180 | if (!trim( $header->id )) { |
ace33b58 |
181 | $filename = 'untitled-[' . $this->entity_id . ']' . '.' . strtolower($header->type1); |
02474e43 |
182 | } else { |
ace33b58 |
183 | $filename = 'cid: ' . $header->id . '.' . strtolower($header->type1); |
02474e43 |
184 | } |
185 | } |
186 | } |
187 | } |
188 | return $filename; |
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189 | } |
190 | |
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191 | /** |
192 | * Add header object to message object. |
193 | * WARNING: Unfinished code. Don't expect it to work in older sm versions. |
194 | * @param mixed $read array or string with message headers |
195 | * @todo FIXME: rfc822header->parseHeader() does not return rfc822header object |
196 | */ |
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197 | function addRFC822Header($read) { |
198 | $header = new Rfc822Header(); |
199 | $this->rfc822_header = $header->parseHeader($read); |
200 | } |
201 | |
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202 | /** |
203 | * @param string $ent |
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204 | * @return mixed (object or string?) |
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205 | */ |
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206 | function getEntity($ent) { |
207 | $cur_ent = $this->entity_id; |
208 | $msg = $this; |
209 | if (($cur_ent == '') || ($cur_ent == '0')) { |
210 | $cur_ent_a = array(); |
211 | } else { |
212 | $cur_ent_a = explode('.', $this->entity_id); |
213 | } |
214 | $ent_a = explode('.', $ent); |
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215 | |
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216 | for ($i = 0,$entCount = count($ent_a) - 1; $i < $entCount; ++$i) { |
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217 | if (isset($cur_ent_a[$i]) && ($cur_ent_a[$i] != $ent_a[$i])) { |
218 | $msg = $msg->parent; |
219 | $cur_ent_a = explode('.', $msg->entity_id); |
220 | --$i; |
221 | } else if (!isset($cur_ent_a[$i])) { |
222 | if (isset($msg->entities[($ent_a[$i]-1)])) { |
223 | $msg = $msg->entities[($ent_a[$i]-1)]; |
224 | } else { |
225 | $msg = $msg->entities[0]; |
226 | } |
227 | } |
228 | if (($msg->type0 == 'message') && ($msg->type1 == 'rfc822')) { |
229 | /*this is a header for a message/rfc822 entity */ |
230 | $msg = $msg->entities[0]; |
231 | } |
232 | } |
233 | |
234 | if (($msg->type0 == 'message') && ($msg->type1 == 'rfc822')) { |
235 | /*this is a header for a message/rfc822 entity */ |
236 | $msg = $msg->entities[0]; |
237 | } |
238 | |
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239 | if (isset($msg->entities[($ent_a[$entCount])-1])) { |
240 | if (is_object($msg->entities[($ent_a[$entCount])-1])) { |
241 | $msg = $msg->entities[($ent_a[$entCount]-1)]; |
19d470aa |
242 | } |
243 | } |
244 | |
245 | return $msg; |
246 | } |
247 | |
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248 | /** |
249 | * Set message body |
250 | * @param string $s message body |
251 | */ |
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252 | function setBody($s) { |
253 | $this->body_part = $s; |
254 | } |
255 | |
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256 | /** |
257 | * Clean message object |
258 | */ |
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259 | function clean_up() { |
260 | $msg = $this; |
261 | $msg->body_part = ''; |
262 | |
263 | foreach ($msg->entities as $m) { |
264 | $m->clean_up(); |
265 | } |
266 | } |
267 | |
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268 | /** |
269 | * @return string |
270 | */ |
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271 | function getMailbox() { |
272 | $msg = $this; |
273 | while (is_object($msg->parent)) { |
274 | $msg = $msg->parent; |
275 | } |
276 | return $msg->mailbox; |
277 | } |
278 | |
19d470aa |
279 | /* |
280 | * Bodystructure parser, a recursive function for generating the |
281 | * entity-tree with all the mime-parts. |
282 | * |
283 | * It follows RFC2060 and stores all the described fields in the |
284 | * message object. |
285 | * |
286 | * Question/Bugs: |
287 | * |
288 | * Ask for me (Marc Groot Koerkamp, stekkel@users.sourceforge.net) |
0f459286 |
289 | * @param string $read |
290 | * @param integer $i |
291 | * @param mixed $sub_msg |
292 | * @return object Message object |
293 | * @todo define argument and return types |
19d470aa |
294 | */ |
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295 | function parseStructure($read, &$i, $sub_msg = '') { |
e3d6469a |
296 | $msg = Message::parseBodyStructure($read, $i, $sub_msg); |
27dd7a0c |
297 | if($msg) $msg->setEntIds($msg,false,0); |
e3d6469a |
298 | return $msg; |
299 | } |
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300 | |
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301 | /** |
302 | * @param object $msg |
303 | * @param mixed $init |
304 | * @param integer $i |
305 | * @todo document me |
306 | * @since 1.4.0 |
307 | */ |
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308 | function setEntIds(&$msg,$init=false,$i=0) { |
309 | $iCnt = count($msg->entities); |
0b914738 |
310 | if ($init !==false) { |
311 | $iEntSub = $i+1; |
91e0dccc |
312 | if ($msg->parent->type0 == 'message' && |
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313 | $msg->parent->type1 == 'rfc822' && |
314 | $msg->type0 == 'multipart') { |
315 | $iEntSub = '0'; |
316 | } |
317 | if ($init) { |
318 | $msg->entity_id = "$init.$iEntSub"; |
319 | } else { |
320 | $msg->entity_id = $iEntSub; |
321 | } |
322 | } else if ($iCnt) { |
323 | $msg->entity_id='0'; |
324 | } else { |
325 | $msg->entity_id='1'; |
326 | } |
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327 | for ($i=0;$i<$iCnt;++$i) { |
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328 | $msg->entities[$i]->parent =& $msg; |
329 | if (strrchr($msg->entity_id, '.') != '.0') { |
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330 | $msg->entities[$i]->setEntIds($msg->entities[$i],$msg->entity_id,$i); |
331 | } else { |
332 | $msg->entities[$i]->setEntIds($msg->entities[$i],$msg->parent->entity_id,$i); |
333 | } |
334 | } |
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335 | } |
336 | |
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337 | /** |
338 | * @param string $read |
339 | * @param integer $i |
340 | * @param mixed $sub_msg |
341 | * @return object Message object |
342 | * @todo document me |
343 | * @since 1.4.0 (code was part of parseStructure() in 1.3.x) |
344 | */ |
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345 | function parseBodyStructure($read, &$i, $sub_msg = '') { |
19d470aa |
346 | $arg_no = 0; |
347 | $arg_a = array(); |
0b914738 |
348 | if ($sub_msg) { |
349 | $message = $sub_msg; |
350 | } else { |
351 | $message = new Message(); |
352 | } |
91e0dccc |
353 | |
19d470aa |
354 | for ($cnt = strlen($read); $i < $cnt; ++$i) { |
355 | $char = strtoupper($read{$i}); |
356 | switch ($char) { |
357 | case '(': |
358 | switch($arg_no) { |
359 | case 0: |
360 | if (!isset($msg)) { |
361 | $msg = new Message(); |
362 | $hdr = new MessageHeader(); |
363 | $hdr->type0 = 'text'; |
364 | $hdr->type1 = 'plain'; |
3c21f499 |
365 | $hdr->encoding = '7bit'; |
19d470aa |
366 | } else { |
367 | $msg->header->type0 = 'multipart'; |
368 | $msg->type0 = 'multipart'; |
369 | while ($read{$i} == '(') { |
055659ab |
370 | $msg->addEntity($msg->parseBodyStructure($read, $i, $msg)); |
19d470aa |
371 | } |
372 | } |
373 | break; |
374 | case 1: |
375 | /* multipart properties */ |
376 | ++$i; |
055659ab |
377 | $arg_a[] = $msg->parseProperties($read, $i); |
19d470aa |
378 | ++$arg_no; |
379 | break; |
380 | case 2: |
381 | if (isset($msg->type0) && ($msg->type0 == 'multipart')) { |
382 | ++$i; |
055659ab |
383 | $arg_a[] = $msg->parseDisposition($read, $i); |
19d470aa |
384 | } else { /* properties */ |
055659ab |
385 | $arg_a[] = $msg->parseProperties($read, $i); |
19d470aa |
386 | } |
19d470aa |
387 | ++$arg_no; |
388 | break; |
389 | case 3: |
390 | if (isset($msg->type0) && ($msg->type0 == 'multipart')) { |
391 | ++$i; |
055659ab |
392 | $arg_a[]= $msg->parseLanguage($read, $i); |
19d470aa |
393 | } |
394 | case 7: |
395 | if (($arg_a[0] == 'message') && ($arg_a[1] == 'rfc822')) { |
396 | $msg->header->type0 = $arg_a[0]; |
397 | $msg->header->type1 = $arg_a[1]; |
398 | $msg->type0 = $arg_a[0]; |
399 | $msg->type1 = $arg_a[1]; |
400 | $rfc822_hdr = new Rfc822Header(); |
055659ab |
401 | $msg->rfc822_header = $msg->parseEnvelope($read, $i, $rfc822_hdr); |
19d470aa |
402 | while (($i < $cnt) && ($read{$i} != '(')) { |
403 | ++$i; |
404 | } |
055659ab |
405 | $msg->addEntity($msg->parseBodyStructure($read, $i,$msg)); |
19d470aa |
406 | } |
407 | break; |
408 | case 8: |
409 | ++$i; |
055659ab |
410 | $arg_a[] = $msg->parseDisposition($read, $i); |
19d470aa |
411 | ++$arg_no; |
412 | break; |
413 | case 9: |
414 | ++$i; |
415 | if (($arg_a[0] == 'text') || (($arg_a[0] == 'message') && ($arg_a[1] == 'rfc822'))) { |
055659ab |
416 | $arg_a[] = $msg->parseDisposition($read, $i); |
19d470aa |
417 | } else { |
055659ab |
418 | $arg_a[] = $msg->parseLanguage($read, $i); |
19d470aa |
419 | } |
19d470aa |
420 | ++$arg_no; |
421 | break; |
422 | case 10: |
423 | if (($arg_a[0] == 'text') || (($arg_a[0] == 'message') && ($arg_a[1] == 'rfc822'))) { |
424 | ++$i; |
055659ab |
425 | $arg_a[] = $msg->parseLanguage($read, $i); |
19d470aa |
426 | } else { |
055659ab |
427 | $i = $msg->parseParenthesis($read, $i); |
19d470aa |
428 | $arg_a[] = ''; /* not yet described in rfc2060 */ |
429 | } |
430 | ++$arg_no; |
431 | break; |
432 | default: |
433 | /* unknown argument, skip this part */ |
055659ab |
434 | $i = $msg->parseParenthesis($read, $i); |
19d470aa |
435 | $arg_a[] = ''; |
436 | ++$arg_no; |
437 | break; |
438 | } /* switch */ |
439 | break; |
440 | case '"': |
441 | /* inside an entity -> start processing */ |
055659ab |
442 | $arg_s = $msg->parseQuote($read, $i); |
19d470aa |
443 | ++$arg_no; |
444 | if ($arg_no < 3) { |
445 | $arg_s = strtolower($arg_s); /* type0 and type1 */ |
446 | } |
447 | $arg_a[] = $arg_s; |
448 | break; |
449 | case 'n': |
450 | case 'N': |
451 | /* probably NIL argument */ |
27dd7a0c |
452 | $tmpnil = strtoupper(substr($read, $i, 4)); |
453 | if ($tmpnil == 'NIL ' || $tmpnil == 'NIL)') { |
19d470aa |
454 | $arg_a[] = ''; |
455 | ++$arg_no; |
456 | $i += 2; |
457 | } |
458 | break; |
459 | case '{': |
460 | /* process the literal value */ |
055659ab |
461 | $arg_a[] = $msg->parseLiteral($read, $i); |
19d470aa |
462 | ++$arg_no; |
463 | break; |
91e0dccc |
464 | case '0': |
19d470aa |
465 | case is_numeric($read{$i}): |
466 | /* process integers */ |
467 | if ($read{$i} == ' ') { break; } |
0b914738 |
468 | ++$arg_no; |
469 | if (preg_match('/^([0-9]+).*/',substr($read,$i), $regs)) { |
470 | $i += strlen($regs[1])-1; |
471 | $arg_a[] = $regs[1]; |
472 | } else { |
473 | $arg_a[] = 0; |
474 | } |
19d470aa |
475 | break; |
476 | case ')': |
477 | $multipart = (isset($msg->type0) && ($msg->type0 == 'multipart')); |
478 | if (!$multipart) { |
479 | $shifted_args = (($arg_a[0] == 'text') || (($arg_a[0] == 'message') && ($arg_a[1] == 'rfc822'))); |
480 | $hdr->type0 = $arg_a[0]; |
481 | $hdr->type1 = $arg_a[1]; |
482 | |
483 | $msg->type0 = $arg_a[0]; |
484 | $msg->type1 = $arg_a[1]; |
485 | $arr = $arg_a[2]; |
486 | if (is_array($arr)) { |
487 | $hdr->parameters = $arg_a[2]; |
488 | } |
489 | $hdr->id = str_replace('<', '', str_replace('>', '', $arg_a[3])); |
490 | $hdr->description = $arg_a[4]; |
491 | $hdr->encoding = strtolower($arg_a[5]); |
492 | $hdr->entity_id = $msg->entity_id; |
493 | $hdr->size = $arg_a[6]; |
494 | if ($shifted_args) { |
495 | $hdr->lines = $arg_a[7]; |
496 | $s = 1; |
497 | } else { |
498 | $s = 0; |
499 | } |
500 | $hdr->md5 = (isset($arg_a[7+$s]) ? $arg_a[7+$s] : $hdr->md5); |
501 | $hdr->disposition = (isset($arg_a[8+$s]) ? $arg_a[8+$s] : $hdr->disposition); |
502 | $hdr->language = (isset($arg_a[9+$s]) ? $arg_a[9+$s] : $hdr->language); |
503 | $msg->header = $hdr; |
19d470aa |
504 | } else { |
505 | $hdr->type0 = 'multipart'; |
506 | $hdr->type1 = $arg_a[0]; |
507 | $msg->type0 = 'multipart'; |
508 | $msg->type1 = $arg_a[0]; |
509 | $hdr->parameters = (isset($arg_a[1]) ? $arg_a[1] : $hdr->parameters); |
510 | $hdr->disposition = (isset($arg_a[2]) ? $arg_a[2] : $hdr->disposition); |
511 | $hdr->language = (isset($arg_a[3]) ? $arg_a[3] : $hdr->language); |
512 | $msg->header = $hdr; |
513 | } |
df627053 |
514 | return $msg; |
19d470aa |
515 | default: break; |
516 | } /* switch */ |
19d470aa |
517 | } /* for */ |
518 | } /* parsestructure */ |
519 | |
0f459286 |
520 | /** |
521 | * @param string $read |
522 | * @param integer $i |
523 | * @return array |
524 | */ |
21a50099 |
525 | function parseProperties($read, &$i) { |
19d470aa |
526 | $properties = array(); |
527 | $prop_name = ''; |
528 | |
529 | for (; $read{$i} != ')'; ++$i) { |
530 | $arg_s = ''; |
531 | if ($read{$i} == '"') { |
21a50099 |
532 | $arg_s = $this->parseQuote($read, $i); |
19d470aa |
533 | } else if ($read{$i} == '{') { |
21a50099 |
534 | $arg_s = $this->parseLiteral($read, $i); |
19d470aa |
535 | } |
536 | |
537 | if ($arg_s != '') { |
538 | if ($prop_name == '') { |
539 | $prop_name = strtolower($arg_s); |
540 | $properties[$prop_name] = ''; |
541 | } else if ($prop_name != '') { |
542 | $properties[$prop_name] = $arg_s; |
543 | $prop_name = ''; |
544 | } |
545 | } |
546 | } |
75b7d042 |
547 | return $this->handleRfc2231($properties); |
548 | } |
549 | |
550 | /** |
551 | * Joins RFC-2231 continuations, converts encoding to RFC-2047 style |
552 | * @param array $properties |
553 | * @return array |
554 | */ |
555 | function handleRfc2231($properties) { |
556 | |
557 | /* STAGE 1: look for multi-line parameters, convert to the single line |
558 | form, and normalize values */ |
559 | |
560 | $cont = array(); |
561 | foreach($properties as $key=>$value) { |
562 | /* Look for parameters followed by "*", a number, and an optional "*" |
563 | at the end. */ |
564 | if (preg_match('/^(.*\*)(\d+)(|\*)$/', $key, $matches)) { |
565 | unset($properties[$key]); |
566 | $prop_name = $matches[1]; |
567 | if (!isset($cont[$prop_name])) $cont[$prop_name] = array(); |
568 | |
569 | /* An asterisk at the end of parameter name indicates that there |
570 | may be an encoding information present, and the parameter |
571 | value is percent-hex encoded. If parameter is not encoded, we |
572 | encode it to simplify further processing. |
573 | */ |
574 | if ($matches[3] == '') $value = rawurlencode($value); |
575 | /* Use the number from parameter name as segment index */ |
576 | $cont[$prop_name][$matches[2]] = $value; |
577 | } |
578 | } |
579 | foreach($cont as $key=>$values) { |
580 | /* Sort segments of multi-line parameters by index number. */ |
581 | ksort($values); |
582 | /* Join segments. We can do it safely, because: |
583 | - All segments are encoded. |
584 | - Per RFC-2231, chapter 4.1 notes. |
585 | */ |
586 | $value = implode('', $values); |
587 | /* Add language and character set field delimiters if not present, |
588 | as required per RFC-2231, chapter 4.1, note #5. */ |
589 | if (strpos($value, "'") === false) $value = "''".$value; |
590 | $properties[$key] = $value; |
591 | } |
592 | |
593 | /* STAGE 2: Convert single line RFC-2231 encoded parameters, and |
594 | previously converted multi-line parameters, to RFC-2047 encoding */ |
595 | |
596 | foreach($properties as $key=>$value) { |
597 | if ($idx = strpos($key, '*')) { |
598 | unset($properties[$key]); |
599 | /* Extract the charset & language. */ |
600 | $charset = substr($value,0,strpos($value,"'")); |
601 | $value = substr($value,strlen($charset)+1); |
602 | $language = substr($value,0,strpos($value,"'")); |
603 | $value = substr($value,strlen($language)+1); |
604 | /* No character set defaults to US-ASCII */ |
605 | if (!$charset) $charset = 'US-ASCII'; |
606 | if ($language) $language = '*'.$language; |
607 | /* Convert to RFC-2047 base64 encoded string. */ |
608 | $properties[substr($key, 0, $idx)] = '=?'.$charset.$language.'?B?'.base64_encode(rawurldecode($value)).'?='; |
609 | } |
610 | } |
21a50099 |
611 | return $properties; |
19d470aa |
612 | } |
613 | |
0f459286 |
614 | /** |
615 | * @param string $read |
616 | * @param integer $i |
617 | * @param object $hdr MessageHeader object |
618 | * @return object MessageHeader object |
619 | */ |
2bf8f74a |
620 | function parseEnvelope($read, &$i, $hdr) { |
19d470aa |
621 | $arg_no = 0; |
622 | $arg_a = array(); |
3cb8baa6 |
623 | ++$i; |
19d470aa |
624 | for ($cnt = strlen($read); ($i < $cnt) && ($read{$i} != ')'); ++$i) { |
19d470aa |
625 | $char = strtoupper($read{$i}); |
626 | switch ($char) { |
627 | case '"': |
21a50099 |
628 | $arg_a[] = $this->parseQuote($read, $i); |
19d470aa |
629 | ++$arg_no; |
630 | break; |
631 | case '{': |
21a50099 |
632 | $arg_a[] = $this->parseLiteral($read, $i); |
0b914738 |
633 | /* temp bugfix (SM 1.5 will have a working clean version) |
634 | too much work to implement that version right now */ |
635 | // --$i; |
19d470aa |
636 | ++$arg_no; |
637 | break; |
638 | case 'N': |
639 | /* probably NIL argument */ |
640 | if (strtoupper(substr($read, $i, 3)) == 'NIL') { |
641 | $arg_a[] = ''; |
642 | ++$arg_no; |
643 | $i += 2; |
644 | } |
645 | break; |
646 | case '(': |
647 | /* Address structure (with group support) |
648 | * Note: Group support is useless on SMTP connections |
649 | * because the protocol doesn't support it |
650 | */ |
651 | $addr_a = array(); |
652 | $group = ''; |
653 | $a=0; |
654 | for (; $i < $cnt && $read{$i} != ')'; ++$i) { |
655 | if ($read{$i} == '(') { |
2bf8f74a |
656 | $addr = $this->parseAddress($read, $i); |
19d470aa |
657 | if (($addr->host == '') && ($addr->mailbox != '')) { |
658 | /* start of group */ |
659 | $group = $addr->mailbox; |
660 | $group_addr = $addr; |
661 | $j = $a; |
662 | } else if ($group && ($addr->host == '') && ($addr->mailbox == '')) { |
663 | /* end group */ |
664 | if ($a == ($j+1)) { /* no group members */ |
665 | $group_addr->group = $group; |
666 | $group_addr->mailbox = ''; |
667 | $group_addr->personal = "$group: Undisclosed recipients;"; |
668 | $addr_a[] = $group_addr; |
669 | $group =''; |
670 | } |
671 | } else { |
672 | $addr->group = $group; |
673 | $addr_a[] = $addr; |
674 | } |
675 | ++$a; |
676 | } |
677 | } |
678 | $arg_a[] = $addr_a; |
679 | break; |
680 | default: break; |
681 | } |
682 | } |
683 | |
684 | if (count($arg_a) > 9) { |
19d470aa |
685 | $d = strtr($arg_a[0], array(' ' => ' ')); |
609f416c |
686 | $d_parts = explode(' ', $d); |
af084f6e |
687 | if (!$arg_a[1]) $arg_a[1] = _("(no subject)"); |
19d470aa |
688 | |
609f416c |
689 | $hdr->date = getTimeStamp($d_parts); /* argument 1: date */ |
3aaa3214 |
690 | $hdr->date_unparsed = strtr($d,'<>',' '); /* original date */ |
8750d90e |
691 | $hdr->subject = $arg_a[1]; /* argument 2: subject */ |
df0db9ce |
692 | $hdr->from = is_array($arg_a[2]) ? $arg_a[2][0] : ''; /* argument 3: from */ |
693 | $hdr->sender = is_array($arg_a[3]) ? $arg_a[3][0] : ''; /* argument 4: sender */ |
af084f6e |
694 | $hdr->reply_to = is_array($arg_a[4]) ? $arg_a[4][0] : ''; /* argument 5: reply-to */ |
19d470aa |
695 | $hdr->to = $arg_a[5]; /* argument 6: to */ |
696 | $hdr->cc = $arg_a[6]; /* argument 7: cc */ |
697 | $hdr->bcc = $arg_a[7]; /* argument 8: bcc */ |
af084f6e |
698 | $hdr->in_reply_to = $arg_a[8]; /* argument 9: in-reply-to */ |
19d470aa |
699 | $hdr->message_id = $arg_a[9]; /* argument 10: message-id */ |
700 | } |
2bf8f74a |
701 | return $hdr; |
19d470aa |
702 | } |
703 | |
0f459286 |
704 | /** |
705 | * @param string $read |
706 | * @param integer $i |
707 | * @return string |
708 | * @todo document me |
709 | */ |
21a50099 |
710 | function parseLiteral($read, &$i) { |
19d470aa |
711 | $lit_cnt = ''; |
0b914738 |
712 | ++$i; |
713 | $iPos = strpos($read,'}',$i); |
714 | if ($iPos) { |
715 | $lit_cnt = substr($read, $i, $iPos - $i); |
716 | $i += strlen($lit_cnt) + 3; /* skip } + \r + \n */ |
717 | /* Now read the literal */ |
718 | $s = ($lit_cnt ? substr($read,$i,$lit_cnt): ''); |
719 | $i += $lit_cnt; |
720 | /* temp bugfix (SM 1.5 will have a working clean version) |
721 | too much work to implement that version right now */ |
722 | --$i; |
723 | } else { /* should never happen */ |
724 | $i += 3; /* } + \r + \n */ |
725 | $s = ''; |
726 | } |
5520fad8 |
727 | return $s; |
19d470aa |
728 | } |
729 | |
0f459286 |
730 | /** |
5d214084 |
731 | * function parseQuote |
732 | * |
733 | * This extract the string value from a quoted string. After the end-quote |
734 | * character is found it returns the string. The offset $i when calling |
735 | * this function points to the first double quote. At the end it points to |
736 | * The ending quote. This function takes care of escaped double quotes. |
737 | * "some \"string\"" |
738 | * ^ ^ |
739 | * initial $i end position $i |
740 | * |
0f459286 |
741 | * @param string $read |
5d214084 |
742 | * @param integer $i offset in $read |
743 | * @return string string inbetween the double quotes |
744 | * @author Marc Groot Koerkamp |
0f459286 |
745 | */ |
21a50099 |
746 | function parseQuote($read, &$i) { |
19d470aa |
747 | $s = ''; |
0b914738 |
748 | $iPos = ++$i; |
5d214084 |
749 | $iPosStart = $iPos; |
0b914738 |
750 | while (true) { |
751 | $iPos = strpos($read,'"',$iPos); |
752 | if (!$iPos) break; |
753 | if ($iPos && $read{$iPos -1} != '\\') { |
754 | $s = substr($read,$i,($iPos-$i)); |
755 | $i = $iPos; |
756 | break; |
5d214084 |
757 | } else if ($iPos > 1 && $read{$iPos -1} == '\\' && $read{$iPos-2} == '\\') { |
758 | // This is an unique situation where the fast detection of the string |
759 | // fails. If the quote string ends with \\ then we need to iterate |
760 | // through the entire string to make sure we detect the unexcaped |
761 | // double quotes correctly. |
762 | $s = ''; |
763 | $bEscaped = false; |
764 | $k = 0; |
765 | for ($j=$iPosStart,$iCnt=strlen($read);$j<$iCnt;++$j) { |
766 | $cChar = $read{$j}; |
767 | switch ($cChar) { |
768 | case '\\': |
769 | $bEscaped = !$bEscaped; |
770 | $s .= $cChar; |
771 | break; |
772 | case '"': |
773 | if ($bEscaped) { |
774 | $s .= $cChar; |
775 | $bEscaped = false; |
776 | } else { |
777 | $i = $j; |
778 | break 3; |
779 | } |
780 | break; |
781 | default: |
782 | if ($bEscaped) { |
783 | $bEscaped = false; |
784 | } |
785 | $s .= $cChar; |
786 | break; |
787 | } |
788 | } |
0b914738 |
789 | } |
790 | ++$iPos; |
791 | if ($iPos > strlen($read)) { |
792 | break; |
793 | } |
794 | } |
21a50099 |
795 | return $s; |
19d470aa |
796 | } |
797 | |
0f459286 |
798 | /** |
799 | * @param string $read |
800 | * @param integer $i |
801 | * @return object AddressStructure object |
802 | */ |
2bf8f74a |
803 | function parseAddress($read, &$i) { |
19d470aa |
804 | $arg_a = array(); |
19d470aa |
805 | for (; $read{$i} != ')'; ++$i) { |
806 | $char = strtoupper($read{$i}); |
807 | switch ($char) { |
df627053 |
808 | case '"': $arg_a[] = $this->parseQuote($read, $i); break; |
809 | case '{': $arg_a[] = $this->parseLiteral($read, $i); break; |
19d470aa |
810 | case 'n': |
811 | case 'N': |
812 | if (strtoupper(substr($read, $i, 3)) == 'NIL') { |
813 | $arg_a[] = ''; |
814 | $i += 2; |
815 | } |
816 | break; |
817 | default: break; |
818 | } |
819 | } |
820 | |
821 | if (count($arg_a) == 4) { |
822 | $adr = new AddressStructure(); |
823 | $adr->personal = $arg_a[0]; |
824 | $adr->adl = $arg_a[1]; |
825 | $adr->mailbox = $arg_a[2]; |
826 | $adr->host = $arg_a[3]; |
827 | } else { |
828 | $adr = ''; |
829 | } |
2bf8f74a |
830 | return $adr; |
19d470aa |
831 | } |
832 | |
0f459286 |
833 | /** |
834 | * @param string $read |
835 | * @param integer $i |
836 | * @param object Disposition object or empty string |
837 | */ |
21a50099 |
838 | function parseDisposition($read, &$i) { |
19d470aa |
839 | $arg_a = array(); |
19d470aa |
840 | for (; $read{$i} != ')'; ++$i) { |
841 | switch ($read{$i}) { |
21a50099 |
842 | case '"': $arg_a[] = $this->parseQuote($read, $i); break; |
843 | case '{': $arg_a[] = $this->parseLiteral($read, $i); break; |
844 | case '(': $arg_a[] = $this->parseProperties($read, $i); break; |
19d470aa |
845 | default: break; |
846 | } |
847 | } |
848 | |
849 | if (isset($arg_a[0])) { |
850 | $disp = new Disposition($arg_a[0]); |
851 | if (isset($arg_a[1])) { |
852 | $disp->properties = $arg_a[1]; |
853 | } |
854 | } |
21a50099 |
855 | return (is_object($disp) ? $disp : ''); |
19d470aa |
856 | } |
857 | |
0f459286 |
858 | /** |
859 | * @param string $read |
860 | * @param integer $i |
861 | * @return object Language object or empty string |
862 | */ |
21a50099 |
863 | function parseLanguage($read, &$i) { |
19d470aa |
864 | /* no idea how to process this one without examples */ |
865 | $arg_a = array(); |
866 | |
867 | for (; $read{$i} != ')'; ++$i) { |
868 | switch ($read{$i}) { |
21a50099 |
869 | case '"': $arg_a[] = $this->parseQuote($read, $i); break; |
870 | case '{': $arg_a[] = $this->parseLiteral($read, $i); break; |
871 | case '(': $arg_a[] = $this->parseProperties($read, $i); break; |
19d470aa |
872 | default: break; |
873 | } |
874 | } |
875 | |
876 | if (isset($arg_a[0])) { |
877 | $lang = new Language($arg_a[0]); |
878 | if (isset($arg_a[1])) { |
879 | $lang->properties = $arg_a[1]; |
880 | } |
881 | } |
21a50099 |
882 | return (is_object($lang) ? $lang : ''); |
19d470aa |
883 | } |
884 | |
0f459286 |
885 | /** |
886 | * Parse message text enclosed in parenthesis |
887 | * @param string $read |
888 | * @param integer $i |
889 | * @return integer |
890 | */ |
19d470aa |
891 | function parseParenthesis($read, $i) { |
1e09ecc2 |
892 | for ($i++; $read{$i} != ')'; ++$i) { |
19d470aa |
893 | switch ($read{$i}) { |
21a50099 |
894 | case '"': $this->parseQuote($read, $i); break; |
895 | case '{': $this->parseLiteral($read, $i); break; |
896 | case '(': $this->parseProperties($read, $i); break; |
19d470aa |
897 | default: break; |
898 | } |
899 | } |
900 | return $i; |
901 | } |
902 | |
0f459286 |
903 | /** |
904 | * Function to fill the message structure in case the |
905 | * bodystructure is not available |
906 | * NOT FINISHED YET |
907 | * @param string $read |
908 | * @param string $type0 message part type |
909 | * @param string $type1 message part subtype |
9ed80157 |
910 | * @return string (only when type0 is not message or multipart) |
0f459286 |
911 | */ |
19d470aa |
912 | function parseMessage($read, $type0, $type1) { |
913 | switch ($type0) { |
914 | case 'message': |
915 | $rfc822_header = true; |
916 | $mime_header = false; |
917 | break; |
918 | case 'multipart': |
919 | $rfc822_header = false; |
920 | $mime_header = true; |
921 | break; |
922 | default: return $read; |
923 | } |
924 | |
925 | for ($i = 1; $i < $count; ++$i) { |
926 | $line = trim($body[$i]); |
927 | if (($mime_header || $rfc822_header) && |
928 | (preg_match("/^.*boundary=\"?(.+(?=\")|.+).*/i", $line, $reg))) { |
929 | $bnd = $reg[1]; |
930 | $bndreg = $bnd; |
931 | $bndreg = str_replace("\\", "\\\\", $bndreg); |
932 | $bndreg = str_replace("?", "\\?", $bndreg); |
933 | $bndreg = str_replace("+", "\\+", $bndreg); |
934 | $bndreg = str_replace(".", "\\.", $bndreg); |
935 | $bndreg = str_replace("/", "\\/", $bndreg); |
936 | $bndreg = str_replace("-", "\\-", $bndreg); |
937 | $bndreg = str_replace("(", "\\(", $bndreg); |
938 | $bndreg = str_replace(")", "\\)", $bndreg); |
939 | } else if ($rfc822_header && $line == '') { |
940 | $rfc822_header = false; |
941 | if ($msg->type0 == 'multipart') { |
942 | $mime_header = true; |
943 | } |
944 | } |
945 | |
946 | if ((($line{0} == '-') || $rfc822_header) && isset($boundaries[0])) { |
947 | $cnt = count($boundaries)-1; |
948 | $bnd = $boundaries[$cnt]['bnd']; |
949 | $bndreg = $boundaries[$cnt]['bndreg']; |
950 | |
951 | $regstr = '/^--'."($bndreg)".".*".'/'; |
952 | if (preg_match($regstr, $line, $reg)) { |
953 | $bndlen = strlen($reg[1]); |
954 | $bndend = false; |
955 | if (strlen($line) > ($bndlen + 3)) { |
956 | if (($line{$bndlen+2} == '-') && ($line{$bndlen+3} == '-')) { |
957 | $bndend = true; |
958 | } |
959 | } |
960 | if ($bndend) { |
961 | /* calc offset and return $msg */ |
962 | //$entStr = CalcEntity("$entStr", -1); |
963 | array_pop($boundaries); |
964 | $mime_header = true; |
965 | $bnd_end = true; |
966 | } else { |
967 | $mime_header = true; |
968 | $bnd_end = false; |
969 | //$entStr = CalcEntity("$entStr", 0); |
970 | ++$content_indx; |
971 | } |
972 | } else { |
973 | if ($header) { } |
974 | } |
975 | } |
976 | } |
977 | } |
978 | |
0f459286 |
979 | /** |
980 | * @param array $entity |
981 | * @param array $alt_order |
982 | * @param boolean $strict |
983 | * @return array |
984 | */ |
19d470aa |
985 | function findDisplayEntity($entity = array(), $alt_order = array('text/plain', 'text/html'), $strict=false) { |
986 | $found = false; |
987 | if ($this->type0 == 'multipart') { |
988 | if($this->type1 == 'alternative') { |
989 | $msg = $this->findAlternativeEntity($alt_order); |
a8596a25 |
990 | if ( ! is_null($msg) ) { |
991 | if (count($msg->entities) == 0) { |
992 | $entity[] = $msg->entity_id; |
993 | } else { |
994 | $entity = $msg->findDisplayEntity($entity, $alt_order, $strict); |
995 | } |
996 | $found = true; |
19d470aa |
997 | } |
19d470aa |
998 | } else if ($this->type1 == 'related') { /* RFC 2387 */ |
999 | $msgs = $this->findRelatedEntity(); |
1000 | foreach ($msgs as $msg) { |
1001 | if (count($msg->entities) == 0) { |
1002 | $entity[] = $msg->entity_id; |
1003 | } else { |
1004 | $entity = $msg->findDisplayEntity($entity, $alt_order, $strict); |
1005 | } |
1006 | } |
1007 | if (count($msgs) > 0) { |
1008 | $found = true; |
1009 | } |
1010 | } else { /* Treat as multipart/mixed */ |
1011 | foreach ($this->entities as $ent) { |
c102e0a7 |
1012 | if(!(is_object($ent->header->disposition) && strtolower($ent->header->disposition->name) == 'attachment') && |
ea87de81 |
1013 | (!isset($ent->header->parameters['filename'])) && |
1014 | (!isset($ent->header->parameters['name'])) && |
1015 | (($ent->type0 != 'message') && ($ent->type1 != 'rfc822'))) { |
19d470aa |
1016 | $entity = $ent->findDisplayEntity($entity, $alt_order, $strict); |
1017 | $found = true; |
1018 | } |
1019 | } |
1020 | } |
1021 | } else { /* If not multipart, then just compare with each entry from $alt_order */ |
1022 | $type = $this->type0.'/'.$this->type1; |
0b914738 |
1023 | // $alt_order[] = "message/rfc822"; |
19d470aa |
1024 | foreach ($alt_order as $alt) { |
1025 | if( ($alt == $type) && isset($this->entity_id) ) { |
91e0dccc |
1026 | if ((count($this->entities) == 0) && |
ea87de81 |
1027 | (!isset($this->header->parameters['filename'])) && |
1028 | (!isset($this->header->parameters['name'])) && |
1029 | isset($this->header->disposition) && is_object($this->header->disposition) && |
1030 | !(is_object($this->header->disposition) && strtolower($this->header->disposition->name) == 'attachment')) { |
19d470aa |
1031 | $entity[] = $this->entity_id; |
1032 | $found = true; |
1033 | } |
1034 | } |
1035 | } |
1036 | } |
1037 | if(!$found) { |
1038 | foreach ($this->entities as $ent) { |
c102e0a7 |
1039 | if(!(is_object($ent->header->disposition) && strtolower($ent->header->disposition->name) == 'attachment') && |
19d470aa |
1040 | (($ent->type0 != 'message') && ($ent->type1 != 'rfc822'))) { |
1041 | $entity = $ent->findDisplayEntity($entity, $alt_order, $strict); |
1042 | $found = true; |
1043 | } |
1044 | } |
1045 | } |
1046 | if(!$strict && !$found) { |
1047 | if (($this->type0 == 'text') && |
1048 | in_array($this->type1, array('plain', 'html', 'message')) && |
1049 | isset($this->entity_id)) { |
1050 | if (count($this->entities) == 0) { |
c102e0a7 |
1051 | if (!is_object($this->header->disposition) || strtolower($this->header->disposition->name) != 'attachment') { |
19d470aa |
1052 | $entity[] = $this->entity_id; |
1053 | } |
1054 | } |
1055 | } |
1056 | } |
19d470aa |
1057 | return $entity; |
1058 | } |
1059 | |
0f459286 |
1060 | /** |
1061 | * @param array $alt_order |
a8596a25 |
1062 | * @return entity |
0f459286 |
1063 | */ |
19d470aa |
1064 | function findAlternativeEntity($alt_order) { |
1065 | /* If we are dealing with alternative parts then we */ |
1066 | /* choose the best viewable message supported by SM. */ |
1067 | $best_view = 0; |
a8596a25 |
1068 | $entity = null; |
19d470aa |
1069 | foreach($this->entities as $ent) { |
1070 | $type = $ent->header->type0 . '/' . $ent->header->type1; |
1071 | if ($type == 'multipart/related') { |
1072 | $type = $ent->header->getParameter('type'); |
a8596a25 |
1073 | // Mozilla bug. Mozilla does not provide the parameter type. |
1074 | if (!$type) $type = 'text/html'; |
19d470aa |
1075 | } |
1076 | $altCount = count($alt_order); |
1077 | for ($j = $best_view; $j < $altCount; ++$j) { |
1078 | if (($alt_order[$j] == $type) && ($j >= $best_view)) { |
1079 | $best_view = $j; |
1080 | $entity = $ent; |
1081 | } |
1082 | } |
1083 | } |
19d470aa |
1084 | return $entity; |
1085 | } |
1086 | |
0f459286 |
1087 | /** |
1088 | * @return array |
1089 | */ |
19d470aa |
1090 | function findRelatedEntity() { |
1091 | $msgs = array(); |
0b914738 |
1092 | $related_type = $this->header->getParameter('type'); |
1093 | // Mozilla bug. Mozilla does not provide the parameter type. |
1094 | if (!$related_type) $related_type = 'text/html'; |
19d470aa |
1095 | $entCount = count($this->entities); |
1096 | for ($i = 0; $i < $entCount; ++$i) { |
1097 | $type = $this->entities[$i]->header->type0.'/'.$this->entities[$i]->header->type1; |
0b914738 |
1098 | if ($related_type == $type) { |
19d470aa |
1099 | $msgs[] = $this->entities[$i]; |
1100 | } |
1101 | } |
19d470aa |
1102 | return $msgs; |
1103 | } |
1104 | |
0f459286 |
1105 | /** |
1106 | * @param array $exclude_id |
1107 | * @param array $result |
1108 | * @return array |
1109 | */ |
19d470aa |
1110 | function getAttachments($exclude_id=array(), $result = array()) { |
e3d6469a |
1111 | /* |
91e0dccc |
1112 | if (($this->type0 == 'message') && |
0b914738 |
1113 | ($this->type1 == 'rfc822') && |
1114 | ($this->entity_id) ) { |
19d470aa |
1115 | $this = $this->entities[0]; |
1116 | } |
e3d6469a |
1117 | */ |
19d470aa |
1118 | if (count($this->entities)) { |
1119 | foreach ($this->entities as $entity) { |
1120 | $exclude = false; |
19d470aa |
1121 | foreach ($exclude_id as $excl) { |
1122 | if ($entity->entity_id === $excl) { |
1123 | $exclude = true; |
1124 | } |
1125 | } |
1126 | |
1127 | if (!$exclude) { |
780555e6 |
1128 | if ($entity->type0 == 'multipart') { |
19d470aa |
1129 | $result = $entity->getAttachments($exclude_id, $result); |
1130 | } else if ($entity->type0 != 'multipart') { |
1131 | $result[] = $entity; |
1132 | } |
1133 | } |
1134 | } |
1135 | } else { |
1136 | $exclude = false; |
1137 | foreach ($exclude_id as $excl) { |
1138 | $exclude = $exclude || ($this->entity_id == $excl); |
1139 | } |
1140 | |
1141 | if (!$exclude) { |
1142 | $result[] = $this; |
1143 | } |
1144 | } |
19d470aa |
1145 | return $result; |
1146 | } |
91e0dccc |
1147 | |
0f459286 |
1148 | /** |
1149 | * Add attachment to message object |
1150 | * @param string $type attachment type |
1151 | * @param string $name attachment name |
1152 | * @param string $location path to attachment |
1153 | */ |
a56f52b9 |
1154 | function initAttachment($type, $name, $location) { |
1155 | $attachment = new Message(); |
1156 | $mime_header = new MessageHeader(); |
1157 | $mime_header->setParameter('name', $name); |
0f459286 |
1158 | // FIXME: duplicate code. see ContentType class |
0b914738 |
1159 | $pos = strpos($type, '/'); |
1160 | if ($pos > 0) { |
1161 | $mime_header->type0 = substr($type, 0, $pos); |
1162 | $mime_header->type1 = substr($type, $pos+1); |
1163 | } else { |
1164 | $mime_header->type0 = $type; |
1165 | } |
1166 | $attachment->att_local_name = $location; |
1167 | $disposition = new Disposition('attachment'); |
1168 | $disposition->properties['filename'] = $name; |
1169 | $mime_header->disposition = $disposition; |
1170 | $attachment->mime_header = $mime_header; |
1171 | $this->entities[]=$attachment; |
a56f52b9 |
1172 | } |
c077ffeb |
1173 | |
1174 | /** |
1175 | * Delete all attachments from this object from disk. |
1176 | * @since 1.5.1 |
1177 | */ |
1178 | function purgeAttachments() { |
1f270d3c |
1179 | if ($this->att_local_name) { |
1180 | global $username, $attachment_dir; |
1181 | $hashed_attachment_dir = getHashedDir($username, $attachment_dir); |
1182 | if ( file_exists($hashed_attachment_dir . '/' . $this->att_local_name) ) { |
1183 | unlink($hashed_attachment_dir . '/' . $this->att_local_name); |
1184 | } |
c077ffeb |
1185 | } |
1186 | // recursively delete attachments from entities contained in this object |
1187 | for ($i=0, $entCount=count($this->entities);$i< $entCount; ++$i) { |
1188 | $this->entities[$i]->purgeAttachments(); |
1189 | } |
1190 | } |
19d470aa |
1191 | } |