19d470aa |
1 | <?php |
2 | |
3 | /** |
4 | * Rfc822Header.class.php |
5 | * |
6 | * Copyright (c) 2002 The SquirrelMail Project Team |
7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
8 | * |
9 | * This contains functions needed to handle mime messages. |
10 | * |
11 | * $Id$ |
12 | */ |
13 | |
14 | /* |
15 | * rdc822_header class |
16 | * input: header_string or array |
17 | */ |
18 | class Rfc822Header { |
19 | var $date = '', |
20 | $subject = '', |
21 | $from = array(), |
22 | $sender = '', |
23 | $reply_to = array(), |
24 | $to = array(), |
25 | $cc = array(), |
26 | $bcc = array(), |
27 | $in_reply_to = '', |
28 | $message_id = '', |
238c278c |
29 | $references = '', |
19d470aa |
30 | $mime = false, |
31 | $content_type = '', |
32 | $disposition = '', |
33 | $xmailer = '', |
34 | $priority = 3, |
35 | $dnt = '', |
36 | $mlist = array(), |
37 | $more_headers = array(); /* only needed for constructing headers |
38 | in smtp.php */ |
39 | function parseHeader($hdr) { |
40 | if (is_array($hdr)) { |
41 | $hdr = implode('', $hdr); |
42 | } |
43 | |
44 | /* First we unfold the header */ |
45 | $hdr = trim(str_replace(array("\r\n\t", "\r\n "),array('', ''), $hdr)); |
46 | |
47 | /* Now we can make a new header array with */ |
48 | /* each element representing a headerline */ |
49 | $hdr = explode("\r\n" , $hdr); |
50 | foreach ($hdr as $line) { |
51 | $pos = strpos($line, ':'); |
52 | if ($pos > 0) { |
53 | $field = substr($line, 0, $pos); |
54 | $value = trim(substr($line, $pos+1)); |
55 | if(!preg_match('/^X.*/i', $field) && |
56 | !preg_match('/^Subject/i', $field)) { |
57 | $value = $this->stripComments($value); |
58 | } |
59 | $this->parseField($field, $value); |
60 | } |
61 | } |
62 | if ($this->content_type == '') { |
63 | $this->parseContentType('text/plain; charset=us-ascii'); |
64 | } |
65 | } |
66 | |
67 | function stripComments($value) { |
68 | $result = ''; |
69 | |
70 | $cnt = strlen($value); |
71 | for ($i = 0; $i < $cnt; ++$i) { |
72 | switch ($value{$i}) { |
73 | case '"': |
74 | $result .= '"'; |
75 | while ((++$i < $cnt) && ($value{$i} != '"')) { |
76 | if ($value{$i} == '\\') { |
77 | $result .= '\\'; |
78 | ++$i; |
79 | } |
80 | $result .= $value{$i}; |
81 | } |
82 | $result .= $value{$i}; |
83 | break; |
84 | case '(': |
85 | $depth = 1; |
86 | while (($depth > 0) && (++$i < $cnt)) { |
87 | switch($value{$i}) { |
88 | case '\\': |
89 | ++$i; |
90 | break; |
91 | case '(': |
92 | ++$depth; |
93 | break; |
94 | case ')': |
95 | --$depth; |
96 | break; |
97 | default: |
98 | break; |
99 | } |
100 | } |
101 | break; |
102 | default: |
103 | $result .= $value{$i}; |
104 | break; |
105 | } |
106 | } |
107 | return $result; |
108 | } |
109 | |
110 | function parseField($field, $value) { |
111 | $field = strtolower($field); |
112 | switch($field) { |
113 | case 'date': |
114 | $d = strtr($value, array(' ' => ' ')); |
115 | $d = explode(' ', $d); |
116 | $this->date = getTimeStamp($d); |
117 | break; |
118 | case 'subject': |
119 | $this->subject = $value; |
120 | break; |
121 | case 'from': |
122 | $this->from = $this->parseAddress($value,true); |
123 | break; |
124 | case 'sender': |
125 | $this->sender = $this->parseAddress($value); |
126 | break; |
127 | case 'reply-to': |
128 | $this->reply_to = $this->parseAddress($value, true); |
129 | break; |
130 | case 'to': |
131 | $this->to = $this->parseAddress($value, true); |
132 | break; |
133 | case 'cc': |
134 | $this->cc = $this->parseAddress($value, true); |
135 | break; |
136 | case 'bcc': |
137 | $this->bcc = $this->parseAddress($value, true); |
138 | break; |
139 | case 'in-reply-to': |
140 | $this->in_reply_to = $value; |
141 | break; |
142 | case 'message-id': |
143 | $this->message_id = $value; |
144 | break; |
238c278c |
145 | case 'references': |
146 | $this->references = $value; |
147 | break; |
19d470aa |
148 | case 'disposition-notification-to': |
149 | $this->dnt = $this->parseAddress($value); |
150 | break; |
151 | case 'mime-version': |
152 | $value = str_replace(' ', '', $value); |
153 | $this->mime = ($value == '1.0' ? true : $this->mime); |
154 | break; |
155 | case 'content-type': |
156 | $this->parseContentType($value); |
157 | break; |
158 | case 'content-disposition': |
159 | $this->parseDisposition($value); |
160 | break; |
161 | case 'user-agent': |
162 | case 'x-mailer': |
163 | $this->xmailer = $value; |
164 | break; |
165 | case 'x-priority': |
166 | $this->priority = $value; |
167 | break; |
168 | case 'list-post': |
169 | $this->mlist('post', $value); |
170 | break; |
171 | case 'list-reply': |
172 | $this->mlist('reply', $value); |
173 | break; |
174 | case 'list-subscribe': |
175 | $this->mlist('subscribe', $value); |
176 | break; |
177 | case 'list-unsubscribe': |
178 | $this->mlist('unsubscribe', $value); |
179 | break; |
180 | case 'list-archive': |
181 | $this->mlist('archive', $value); |
182 | break; |
183 | case 'list-owner': |
184 | $this->mlist('owner', $value); |
185 | break; |
186 | case 'list-help': |
187 | $this->mlist('help', $value); |
188 | break; |
189 | case 'list-id': |
190 | $this->mlist('id', $value); |
191 | break; |
192 | default: |
193 | break; |
194 | } |
195 | } |
196 | |
197 | function parseAddress |
238c278c |
198 | ($address, $ar=false, $addr_ar = array(), $group = '', $host='') { |
19d470aa |
199 | $pos = 0; |
200 | $j = strlen($address); |
201 | $name = ''; |
202 | $addr = ''; |
203 | while ($pos < $j) { |
204 | switch ($address{$pos}) { |
205 | case '"': /* get the personal name */ |
206 | if ($address{++$pos} == '"') { |
207 | ++$pos; |
208 | } else { |
209 | while ($pos < $j && $address{$pos} != '"') { |
210 | if ((substr($address, $pos, 2) == '\\"') || |
211 | (substr($address, $pos, 2) == '\\\\')) { |
212 | $name .= $address{$pos++}; |
213 | } |
214 | $name .= $address{$pos++}; |
215 | } |
216 | } |
217 | ++$pos; |
218 | break; |
219 | case '<': /* get email address */ |
220 | $addr_start = $pos++; |
221 | while ($pos < $j && $address{$pos} != '>') { |
222 | $addr .= $address{$pos++}; |
223 | } |
224 | ++$pos; |
225 | break; |
226 | case '(': /* rip off comments */ |
227 | $addr_start = $pos; |
228 | for (++$pos; ($pos < $j) && ($address{$pos} != ')'); ++$pos) { |
229 | $addr .= $address{$pos}; |
230 | } |
231 | $address_start = substr($address, 0, $addr_start); |
232 | $address_end = substr($address, $pos + 1); |
233 | $address = $address_start . $address_end; |
234 | $j = strlen($address); |
235 | $pos = $addr_start + 1; |
236 | break; |
237 | case ',': /* we reached a delimiter */ |
238c278c |
238 | //case ';': |
19d470aa |
239 | if ($addr == '') { |
240 | $addr = substr($address, 0, $pos); |
241 | } else if ($name == '') { |
242 | $name = trim(substr($address, 0, $addr_start)); |
243 | } |
244 | |
245 | $at = strpos($addr, '@'); |
246 | $addr_structure = new AddressStructure(); |
247 | $addr_structure->personal = $name; |
248 | $addr_structure->group = $group; |
249 | if ($at) { |
250 | $addr_structure->mailbox = substr($addr, 0, $at); |
251 | $addr_structure->host = substr($addr, $at+1); |
252 | } else { |
253 | $addr_structure->mailbox = $addr; |
238c278c |
254 | if ($host) { |
255 | $addr_structure->host = $host; |
256 | } |
19d470aa |
257 | } |
258 | $address = trim(substr($address, $pos+1)); |
259 | $j = strlen($address); |
260 | $pos = 0; |
261 | $name = ''; |
262 | $addr = ''; |
263 | $addr_ar[] = $addr_structure; |
264 | break; |
265 | case ':': /* process the group addresses */ |
266 | /* group marker */ |
267 | $group = substr($address, 0, $pos); |
268 | $address = substr($address, $pos+1); |
269 | $result = $this->parseAddress($address, $ar, $addr_ar, $group); |
270 | $addr_ar = $result[0]; |
271 | $pos = $result[1]; |
272 | $address = substr($address, $pos++); |
273 | $j = strlen($address); |
274 | $group = ''; |
275 | break; |
276 | case ';': |
277 | if ($group) { |
278 | $address = substr($address, 0, $pos - 1); |
279 | } |
280 | ++$pos; |
281 | break; |
282 | default: |
283 | ++$pos; |
284 | break; |
285 | } |
286 | } |
287 | if ($addr == '') { |
288 | $addr = substr($address, 0, $pos); |
289 | } else if ($name == '') { |
290 | $name = trim(substr($address, 0, $addr_start)); |
291 | } |
292 | $at = strpos($addr, '@'); |
293 | $addr_structure = new AddressStructure(); |
294 | $addr_structure->group = $group; |
295 | if ($at) { |
296 | $addr_structure->mailbox = trim(substr($addr, 0, $at)); |
297 | $addr_structure->host = trim(substr($addr, $at+1)); |
298 | } else { |
299 | $addr_structure->mailbox = trim($addr); |
238c278c |
300 | if ($host) { |
301 | $addr_structure->host = $host; |
302 | } |
19d470aa |
303 | } |
304 | if ($group && $addr == '') { /* no addresses found in group */ |
238c278c |
305 | $name = "$group"; |
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306 | $addr_structure->personal = $name; |
307 | $addr_ar[] = $addr_structure; |
308 | return (array($addr_ar, $pos+1)); |
309 | } else { |
310 | $addr_structure->personal = $name; |
311 | if ($name || $addr) { |
312 | $addr_ar[] = $addr_structure; |
313 | } |
314 | } |
315 | if ($ar) { |
316 | return ($addr_ar); |
317 | } |
318 | return ($addr_ar[0]); |
319 | } |
320 | |
321 | function parseContentType($value) { |
322 | $pos = strpos($value, ';'); |
323 | $props = ''; |
324 | if ($pos > 0) { |
325 | $type = trim(substr($value, 0, $pos)); |
326 | $props = trim(substr($type, $pos+1)); |
327 | } else { |
328 | $type = $value; |
329 | } |
330 | $content_type = new ContentType($type); |
331 | if ($props) { |
332 | $properties = $this->parseProperties($props); |
333 | if (!isset($properties['charset'])) { |
334 | $properties['charset'] = 'us-ascii'; |
335 | } |
336 | $content_type->properties = $this->parseProperties($props); |
337 | } |
338 | $this->content_type = $content_type; |
339 | } |
340 | |
341 | function parseProperties($value) { |
342 | $propArray = explode(';', $value); |
343 | $propResultArray = array(); |
344 | foreach ($propArray as $prop) { |
345 | $prop = trim($prop); |
346 | $pos = strpos($prop, '='); |
347 | if ($pos > 0) { |
348 | $key = trim(substr($prop, 0, $pos)); |
349 | $val = trim(substr($prop, $pos+1)); |
350 | if ($val{0} == '"') { |
351 | $val = substr($val, 1, -1); |
352 | } |
353 | $propResultArray[$key] = $val; |
354 | } |
355 | } |
356 | return $propResultArray; |
357 | } |
358 | |
359 | function parseDisposition($value) { |
360 | $pos = strpos($value, ';'); |
361 | $props = ''; |
362 | if ($pos > 0) { |
363 | $name = trim(substr($value, 0, $pos)); |
fc9269ec |
364 | $props = trim(substr($value, $pos+1)); |
19d470aa |
365 | } else { |
366 | $name = $value; |
367 | } |
368 | $props_a = $this->parseProperties($props); |
369 | $disp = new Disposition($name); |
370 | $disp->properties = $props_a; |
371 | $this->disposition = $disp; |
372 | } |
373 | |
374 | function mlist($field, $value) { |
375 | $res_a = array(); |
376 | $value_a = explode(',', $value); |
377 | foreach ($value_a as $val) { |
378 | $val = trim($val); |
379 | if ($val{0} == '<') { |
380 | $val = substr($val, 1, -1); |
381 | } |
382 | if (substr($val, 0, 7) == 'mailto:') { |
383 | $res_a['mailto'] = substr($val, 7); |
384 | } else { |
385 | $res_a['href'] = $val; |
386 | } |
387 | } |
388 | $this->mlist[$field] = $res_a; |
389 | } |
390 | |
391 | /* |
392 | * function to get the addres strings out of the header. |
393 | * Arguments: string or array of strings ! |
394 | * example1: header->getAddr_s('to'). |
395 | * example2: header->getAddr_s(array('to', 'cc', 'bcc')) |
396 | */ |
397 | function getAddr_s($arr, $separator = ',') { |
398 | $s = ''; |
399 | |
400 | if (is_array($arr)) { |
401 | foreach($arr as $arg) { |
402 | if ($this->getAddr_s($arg)) { |
403 | $s .= $separator . $result; |
404 | } |
405 | } |
406 | $s = ($s ? substr($s, 2) : $s); |
407 | } else { |
408 | eval('$addr = $this->' . $arr . ';') ; |
409 | if (is_array($addr)) { |
410 | foreach ($addr as $addr_o) { |
411 | if (is_object($addr_o)) { |
412 | $s .= $addr_o->getAddress() . $separator; |
413 | } |
414 | } |
415 | $s = substr($s, 0, -strlen($separator)); |
416 | } else { |
417 | if (is_object($addr)) { |
418 | $s .= $addr->getAddress(); |
419 | } |
420 | } |
421 | } |
422 | return $s; |
423 | } |
424 | |
425 | function getAddr_a($arg, $excl_arr = array(), $arr = array()) { |
426 | if (is_array($arg)) { |
427 | foreach($arg as $argument) { |
428 | $arr = $this->getAddr_a($argument, $excl_arr, $arr); |
429 | } |
430 | } else { |
431 | eval('$addr = $this->' . $arg . ';') ; |
432 | if (is_array($addr)) { |
433 | foreach ($addr as $next_addr) { |
434 | if (is_object($next_addr)) { |
435 | if (isset($next_addr->host) && ($next_addr->host != '')) { |
436 | $email = $next_addr->mailbox . '@' . $next_addr->host; |
437 | } else { |
438 | $email = $next_addr->mailbox; |
439 | } |
440 | $email = strtolower($email); |
441 | if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) { |
442 | $arr[$email] = $next_addr->personal; |
443 | } |
444 | } |
445 | } |
446 | } else { |
447 | if (is_object($addr)) { |
448 | $email = $addr->mailbox; |
449 | $email .= (isset($addr->host) ? '@' . $addr->host : ''); |
450 | $email = strtolower($email); |
451 | if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) { |
452 | $arr[$email] = $addr->personal; |
453 | } |
454 | } |
455 | } |
456 | } |
457 | return $arr; |
458 | } |
459 | |
460 | function getContentType($type0, $type1) { |
461 | $type0 = $this->content_type->type0; |
462 | $type1 = $this->content_type->type1; |
463 | return $this->content_type->properties; |
464 | } |
465 | } |
466 | |
467 | ?> |