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