59177427 |
1 | <?php |
aceb0d5c |
2 | /** mime.php |
3 | ** |
d068c0ec |
4 | ** This contains the functions necessary to detect and decode MIME |
5 | ** messages. |
6 | ** |
245a6892 |
7 | ** $Id$ |
aceb0d5c |
8 | **/ |
b74ba498 |
9 | |
f435778e |
10 | if (defined('mime_php')) |
11 | return; |
12 | define('mime_php', true); |
aceb0d5c |
13 | |
0fc2aca0 |
14 | require_once('../functions/imap.php'); |
8beafbbc |
15 | |
cbcf32f6 |
16 | /** Setting up the objects that have the structure for the message **/ |
8beafbbc |
17 | |
18 | class msg_header { |
19 | /** msg_header contains generic variables for values that **/ |
20 | /** could be in a header. **/ |
b74ba498 |
21 | |
245a6892 |
22 | var $type0 = '', $type1 = '', $boundary = '', $charset = ''; |
40023540 |
23 | var $encoding = '', $size = 0, $to = array(), $from = '', $date = ''; |
24 | var $cc = array(), $bcc = array(), $reply_to = '', $subject = ''; |
61423189 |
25 | var $id = 0, $mailbox = '', $description = '', $filename = ''; |
66e1a00e |
26 | var $entity_id = 0, $message_id = 0, $name = ''; |
8beafbbc |
27 | } |
b74ba498 |
28 | |
8beafbbc |
29 | class message { |
30 | /** message is the object that contains messages. It is a recursive |
b74ba498 |
31 | object in that through the $entities variable, it can contain |
8beafbbc |
32 | more objects of type message. See documentation in mime.txt for |
33 | a better description of how this works. |
b74ba498 |
34 | **/ |
61423189 |
35 | var $header = ''; |
2df6ca53 |
36 | var $entities = array(); |
b74ba498 |
37 | |
8beafbbc |
38 | function addEntity ($msg) { |
61423189 |
39 | $this->entities[] = $msg; |
8beafbbc |
40 | } |
41 | } |
1fd97780 |
42 | |
8beafbbc |
43 | /* --------------------------------------------------------------------------------- */ |
44 | /* MIME DECODING */ |
45 | /* --------------------------------------------------------------------------------- */ |
b74ba498 |
46 | |
cbcf32f6 |
47 | // This function gets the structure of a message and stores it in the "message" class. |
48 | // It will return this object for use with all relevant header information and |
49 | // fully parsed into the standard "message" object format. |
8beafbbc |
50 | function mime_structure ($imap_stream, $header) { |
b74ba498 |
51 | |
52 | sqimap_messages_flag ($imap_stream, $header->id, $header->id, 'Seen'); |
53 | $ssid = sqimap_session_id(); |
54 | $lsid = strlen( $ssid ); |
8beafbbc |
55 | $id = $header->id; |
b74ba498 |
56 | fputs ($imap_stream, "$ssid FETCH $id BODYSTRUCTURE\r\n"); |
245a6892 |
57 | // |
58 | // This should use sqimap_read_data instead of reading it itself |
59 | // |
e79bed1b |
60 | $read = fgets ($imap_stream, 10000); |
b74ba498 |
61 | $bodystructure = ''; |
62 | while( substr($read, 0, $lsid) <> $ssid && |
63 | !feof( $imap_stream ) ) { |
3e1266ef |
64 | $bodystructure .= $read; |
254925d1 |
65 | $read = fgets ($imap_stream, 10000); |
254925d1 |
66 | } |
22ef7536 |
67 | $read = $bodystructure; |
8beafbbc |
68 | |
8beafbbc |
69 | // isolate the body structure and remove beginning and end parenthesis |
b74ba498 |
70 | $read = trim(substr ($read, strpos(strtolower($read), 'bodystructure') + 13)); |
ea48eb25 |
71 | $read = trim(substr ($read, 0, -1)); |
72 | $end = mime_match_parenthesis(0, $read); |
73 | while ($end == strlen($read)-1) { |
74 | $read = trim(substr ($read, 0, -1)); |
75 | $read = trim(substr ($read, 1)); |
76 | $end = mime_match_parenthesis(0, $read); |
77 | } |
8beafbbc |
78 | |
85daa3ad |
79 | $msg = mime_parse_structure ($read, 0); |
8beafbbc |
80 | $msg->header = $header; |
81 | return $msg; |
82 | } |
83 | |
cbcf32f6 |
84 | // this starts the parsing of a particular structure. It is called recursively, |
85 | // so it can be passed different structures. It returns an object of type |
86 | // $message. |
87 | // First, it checks to see if it is a multipart message. If it is, then it |
88 | // handles that as it sees is necessary. If it is just a regular entity, |
89 | // then it parses it and adds the necessary header information (by calling out |
90 | // to mime_get_elements() |
8beafbbc |
91 | function mime_parse_structure ($structure, $ent_id) { |
b74ba498 |
92 | |
8beafbbc |
93 | $msg = new message(); |
b74ba498 |
94 | if ($structure{0} == '(') { |
8beafbbc |
95 | $ent_id = mime_new_element_level($ent_id); |
96 | $start = $end = -1; |
97 | do { |
8beafbbc |
98 | $start = $end+1; |
99 | $end = mime_match_parenthesis ($start, $structure); |
b74ba498 |
100 | |
8beafbbc |
101 | $element = substr($structure, $start+1, ($end - $start)-1); |
ea48eb25 |
102 | $ent_id = mime_increment_id ($ent_id); |
8beafbbc |
103 | $newmsg = mime_parse_structure ($element, $ent_id); |
104 | $msg->addEntity ($newmsg); |
b74ba498 |
105 | } while ($structure{$end+1} == '('); |
8beafbbc |
106 | } else { |
107 | // parse the elements |
090595e1 |
108 | $msg = mime_get_element ($structure, $msg, $ent_id); |
8beafbbc |
109 | } |
bc64f471 |
110 | return $msg; |
8beafbbc |
111 | } |
112 | |
113 | // Increments the element ID. An element id can look like any of |
114 | // the following: 1, 1.2, 4.3.2.4.1, etc. This function increments |
115 | // the last number of the element id, changing 1.2 to 1.3. |
116 | function mime_increment_id ($id) { |
b74ba498 |
117 | |
8beafbbc |
118 | if (strpos($id, ".")) { |
119 | $first = substr($id, 0, strrpos($id, ".")); |
ea48eb25 |
120 | $last = substr($id, strrpos($id, ".")+1); |
8beafbbc |
121 | $last++; |
ea48eb25 |
122 | $new = $first . "." .$last; |
8beafbbc |
123 | } else { |
124 | $new = $id + 1; |
125 | } |
b74ba498 |
126 | |
8beafbbc |
127 | return $new; |
128 | } |
129 | |
130 | // See comment for mime_increment_id(). |
131 | // This adds another level on to the entity_id changing 1.3 to 1.3.0 |
b74ba498 |
132 | // NOTE: 1.3.0 is not a valid element ID. It MUST be incremented |
8beafbbc |
133 | // before it can be used. I left it this way so as not to have |
134 | // to make a special case if it is the first entity_id. It |
135 | // always increments it, and that works fine. |
136 | function mime_new_element_level ($id) { |
ea48eb25 |
137 | |
b74ba498 |
138 | if (!$id) { |
139 | $id = 0; |
140 | } else { |
141 | $id = $id . '.0'; |
142 | } |
143 | |
144 | return( $id ); |
8beafbbc |
145 | } |
146 | |
ea48eb25 |
147 | function mime_get_element (&$structure, $msg, $ent_id) { |
b74ba498 |
148 | |
8beafbbc |
149 | $elem_num = 1; |
ea48eb25 |
150 | $msg->header = new msg_header(); |
151 | $msg->header->entity_id = $ent_id; |
4bbe6ccc |
152 | $properties = array(); |
b74ba498 |
153 | |
8beafbbc |
154 | while (strlen($structure) > 0) { |
155 | $structure = trim($structure); |
b74ba498 |
156 | $char = $structure{0}; |
8beafbbc |
157 | |
b74ba498 |
158 | if (strtolower(substr($structure, 0, 3)) == 'nil') { |
159 | $text = ''; |
8beafbbc |
160 | $structure = substr($structure, 3); |
b74ba498 |
161 | } else if ($char == '"') { |
8beafbbc |
162 | // loop through until we find the matching quote, and return that as a string |
163 | $pos = 1; |
b74ba498 |
164 | $text = ''; |
165 | while ( ($char = $structure{$pos} ) <> '"' && $pos < strlen($structure)) { |
8beafbbc |
166 | $text .= $char; |
167 | $pos++; |
b74ba498 |
168 | } |
8beafbbc |
169 | $structure = substr($structure, strlen($text) + 2); |
b74ba498 |
170 | } else if ($char == '(') { |
8beafbbc |
171 | // comment me |
172 | $end = mime_match_parenthesis (0, $structure); |
173 | $sub = substr($structure, 1, $end-1); |
174 | $properties = mime_get_props($properties, $sub); |
175 | $structure = substr($structure, strlen($sub) + 2); |
176 | } else { |
177 | // loop through until we find a space or an end parenthesis |
178 | $pos = 0; |
b74ba498 |
179 | $char = $structure{$pos}; |
180 | $text = ''; |
181 | while ($char != ' ' && $char != ')' && $pos < strlen($structure)) { |
8beafbbc |
182 | $text .= $char; |
183 | $pos++; |
b74ba498 |
184 | $char = $structure{$pos}; |
aceb0d5c |
185 | } |
8beafbbc |
186 | $structure = substr($structure, strlen($text)); |
aceb0d5c |
187 | } |
8beafbbc |
188 | |
189 | // This is where all the text parts get put into the header |
190 | switch ($elem_num) { |
b74ba498 |
191 | case 1: |
22ef7536 |
192 | $msg->header->type0 = strtolower($text); |
8beafbbc |
193 | break; |
b74ba498 |
194 | case 2: |
22ef7536 |
195 | $msg->header->type1 = strtolower($text); |
8beafbbc |
196 | break; |
b74ba498 |
197 | case 4: // Id |
198 | // Invisimail enclose images with <> |
199 | $msg->header->id = str_replace( '<', '', str_replace( '>', '', $text ) ); |
200 | break; |
ea48eb25 |
201 | case 5: |
202 | $msg->header->description = $text; |
ea48eb25 |
203 | break; |
8beafbbc |
204 | case 6: |
22ef7536 |
205 | $msg->header->encoding = strtolower($text); |
8beafbbc |
206 | break; |
207 | case 7: |
ea48eb25 |
208 | $msg->header->size = $text; |
8beafbbc |
209 | break; |
210 | default: |
b74ba498 |
211 | if ($msg->header->type0 == 'text' && $elem_num == 8) { |
cbcf32f6 |
212 | // This is a plain text message, so lets get the number of lines |
213 | // that it contains. |
ea48eb25 |
214 | $msg->header->num_lines = $text; |
cbcf32f6 |
215 | |
b74ba498 |
216 | } else if ($msg->header->type0 == 'message' && $msg->header->type1 == 'rfc822' && $elem_num == 8) { |
217 | // This is an encapsulated message, so lets start all over again and |
ea48eb25 |
218 | // parse this message adding it on to the existing one. |
219 | $structure = trim($structure); |
b74ba498 |
220 | if ( $structure{0} == '(' ) { |
ea48eb25 |
221 | $e = mime_match_parenthesis (0, $structure); |
222 | $structure = substr($structure, 0, $e); |
223 | $structure = substr($structure, 1); |
224 | $m = mime_parse_structure($structure, $msg->header->entity_id); |
b74ba498 |
225 | |
cbcf32f6 |
226 | // the following conditional is there to correct a bug that wasn't |
227 | // incrementing the entity IDs correctly because of the special case |
228 | // that message/rfc822 is. This fixes it fine. |
b74ba498 |
229 | if (substr($structure, 1, 1) != '(') |
ea48eb25 |
230 | $m->header->entity_id = mime_increment_id(mime_new_element_level($ent_id)); |
b74ba498 |
231 | |
cbcf32f6 |
232 | // Now we'll go through and reformat the results. |
ea48eb25 |
233 | if ($m->entities) { |
234 | for ($i=0; $i < count($m->entities); $i++) { |
ea48eb25 |
235 | $msg->addEntity($m->entities[$i]); |
236 | } |
237 | } else { |
ea48eb25 |
238 | $msg->addEntity($m); |
239 | } |
b74ba498 |
240 | $structure = ""; |
ea48eb25 |
241 | } |
8beafbbc |
242 | } |
243 | break; |
244 | } |
245 | $elem_num++; |
246 | $text = ""; |
247 | } |
248 | // loop through the additional properties and put those in the various headers |
b74ba498 |
249 | if ($msg->header->type0 != 'message') { |
cbcf32f6 |
250 | for ($i=0; $i < count($properties); $i++) { |
b74ba498 |
251 | $msg->header->{$properties[$i]['name']} = $properties[$i]['value']; |
cbcf32f6 |
252 | } |
ea48eb25 |
253 | } |
e4a256af |
254 | |
ea48eb25 |
255 | return $msg; |
8beafbbc |
256 | } |
257 | |
258 | // I did most of the MIME stuff yesterday (June 20, 2000), but I couldn't |
259 | // figure out how to do this part, so I decided to go to bed. I woke up |
260 | // in the morning and had a flash of insight. I went to the white-board |
261 | // and scribbled it out, then spent a bit programming it, and this is the |
262 | // result. Nothing complicated, but I think my brain was fried yesterday. |
cbcf32f6 |
263 | // Funny how that happens some times. |
8beafbbc |
264 | // |
265 | // This gets properties in a nested parenthesisized list. For example, |
266 | // this would get passed something like: ("attachment" ("filename" "luke.tar.gz")) |
267 | // This returns an array called $props with all paired up properties. |
b74ba498 |
268 | // It ignores the "attachment" for now, maybe that should change later |
8beafbbc |
269 | // down the road. In this case, what is returned is: |
270 | // $props[0]["name"] = "filename"; |
271 | // $props[0]["value"] = "luke.tar.gz"; |
272 | function mime_get_props ($props, $structure) { |
b74ba498 |
273 | |
8beafbbc |
274 | while (strlen($structure) > 0) { |
275 | $structure = trim($structure); |
b74ba498 |
276 | $char = $structure{0}; |
8beafbbc |
277 | |
b74ba498 |
278 | if ($char == '"') { |
8beafbbc |
279 | $pos = 1; |
b74ba498 |
280 | $tmp = ''; |
281 | while ( ( $char = $structure{$pos} ) != '"' && |
282 | $pos < strlen($structure)) { |
8beafbbc |
283 | $tmp .= $char; |
284 | $pos++; |
b74ba498 |
285 | } |
8beafbbc |
286 | $structure = trim(substr($structure, strlen($tmp) + 2)); |
b74ba498 |
287 | $char = $structure{0}; |
8beafbbc |
288 | |
b74ba498 |
289 | if ($char == '"') { |
8beafbbc |
290 | $pos = 1; |
b74ba498 |
291 | $value = ''; |
292 | while ( ( $char = $structure{$pos} ) != '"' && |
293 | $pos < strlen($structure) ) { |
8beafbbc |
294 | $value .= $char; |
295 | $pos++; |
b74ba498 |
296 | } |
8beafbbc |
297 | $structure = trim(substr($structure, strlen($tmp) + 2)); |
b74ba498 |
298 | |
8beafbbc |
299 | $k = count($props); |
b74ba498 |
300 | $props[$k]['name'] = strtolower($tmp); |
301 | $props[$k]['value'] = $value; |
302 | } else if ($char == '(') { |
8beafbbc |
303 | $end = mime_match_parenthesis (0, $structure); |
304 | $sub = substr($structure, 1, $end-1); |
b74ba498 |
305 | if (! isset($props)) |
306 | $props = array(); |
8beafbbc |
307 | $props = mime_get_props($props, $sub); |
308 | $structure = substr($structure, strlen($sub) + 2); |
309 | } |
310 | return $props; |
b74ba498 |
311 | } else if ($char == '(') { |
8beafbbc |
312 | $end = mime_match_parenthesis (0, $structure); |
313 | $sub = substr($structure, 1, $end-1); |
314 | $props = mime_get_props($props, $sub); |
315 | $structure = substr($structure, strlen($sub) + 2); |
ea48eb25 |
316 | return $props; |
8beafbbc |
317 | } else { |
318 | return $props; |
7831268e |
319 | } |
8beafbbc |
320 | } |
321 | } |
7831268e |
322 | |
8beafbbc |
323 | // Matches parenthesis. It will return the position of the matching |
324 | // parenthesis in $structure. For instance, if $structure was: |
325 | // ("text" "plain" ("val1name", "1") nil ... ) |
326 | // x x |
327 | // then this would return 42 to match up those two. |
328 | function mime_match_parenthesis ($pos, $structure) { |
b74ba498 |
329 | |
330 | $j = strlen( $structure ); |
8beafbbc |
331 | |
332 | // ignore all extra characters |
5ffe5a7e |
333 | // If inside of a string, skip string -- Boundary IDs and other |
334 | // things can have ) in them. |
b74ba498 |
335 | if( $structure{$pos} != '(' ) |
336 | return( $j ); |
337 | |
338 | while( $pos < $j ) { |
8beafbbc |
339 | $pos++; |
b74ba498 |
340 | if ($structure{$pos} == ')') { |
8beafbbc |
341 | return $pos; |
b74ba498 |
342 | } elseif ($structure{$pos} == '"') { |
343 | $pos++; |
344 | while( $structure{$pos} != '"' && |
345 | $pos < $j ) { |
346 | if (substr($structure, $pos, 2) == '\\"') |
347 | $pos++; |
348 | elseif (substr($structure, $pos, 2) == '\\\\') |
349 | $pos++; |
350 | $pos++; |
5ffe5a7e |
351 | } |
b74ba498 |
352 | } elseif ( $structure{$pos} == '(' ) { |
8beafbbc |
353 | $pos = mime_match_parenthesis ($pos, $structure); |
354 | } |
d4467150 |
355 | } |
377a40b2 |
356 | echo "Error decoding mime structure. Report this as a bug!<br>\n"; |
b74ba498 |
357 | return( $pos ); |
8beafbbc |
358 | } |
d4467150 |
359 | |
a3daaaf3 |
360 | function mime_fetch_body ($imap_stream, $id, $ent_id ) { |
361 | // do a bit of error correction. If we couldn't find the entity id, just guess |
362 | // that it is the first one. That is usually the case anyway. |
363 | if (!$ent_id) |
364 | $ent_id = 1; |
365 | $sid = sqimap_session_id(); |
366 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n"); |
367 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
368 | $topline = array_shift($data); |
369 | while (! ereg('\\* [0-9]+ FETCH ', $topline) && $data) |
370 | $topline = array_shift($data); |
371 | $wholemessage = implode('', $data); |
372 | if (ereg('\\{([^\\}]*)\\}', $topline, $regs)) { |
373 | $ret = substr( $wholemessage, 0, $regs[1] ); |
374 | /* |
375 | There is some information in the content info header that could be important |
376 | in order to parse html messages. Let's get them here. |
377 | */ |
378 | if( $ret{0} == '<' ) { |
379 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id.MIME]\r\n"); |
380 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
381 | $base = ''; |
382 | $k = 10; |
383 | foreach( $data as $d ) { |
384 | if( substr( $d, 0, 13 ) == 'Content-Base:' ) { |
385 | $j = strlen( $d ); |
386 | $i = 13; |
387 | $base = ''; |
388 | while( $i < $j && |
389 | ( !isNoSep( $d{$i} ) || $d{$i} == '"' ) ) |
390 | $i++; |
391 | while( $i < $j ) { |
392 | if( isNoSep( $d{$i} ) ) |
393 | $base .= $d{$i}; |
394 | $i++; |
395 | } |
396 | $k = 0; |
397 | } elseif( $k == 1 && !isnosep( $d{0} ) ) { |
398 | $base .= substr( $d, 1 ); |
399 | } |
400 | $k++; |
401 | } |
402 | if( $base <> '' ) |
403 | $ret = "<base href=\"$base\">" . $ret; |
404 | } |
405 | } else if (ereg('"([^"]*)"', $topline, $regs)) { |
406 | $ret = $regs[1]; |
407 | } else { |
a019eeb8 |
408 | global $where, $what, $mailbox, $passed_id, $startMessage; |
409 | $par = "mailbox=".urlencode($mailbox)."&passed_id=$passed_id"; |
410 | if (isset($where) && isset($what)) { |
411 | $par .= "&where=".urlencode($where)."&what=".urlencode($what); |
412 | } else { |
413 | $par .= "&startMessage=$startMessage&show_more=0"; |
a3daaaf3 |
414 | } |
a019eeb8 |
415 | $par .= '&response='.urlencode($response).'&message='.urlencode($message). |
416 | '&topline='.urlencode($topline); |
417 | |
418 | echo '<b><font color=$color[2]>Body retrieval error. The reason for this is most probably that<BR> ' . |
419 | 'the message is malformed. Please help us making future versions<BR> ' . |
420 | "better by submitting this message to the developers knowledgebase!<BR>\n" . |
421 | "<A HREF=\"../src/retrievalerror.php?$par\">Submit message</A><BR>" . |
422 | |
423 | "<tt>Response: $response<BR>" . |
424 | "Message: $message<BR>" . |
425 | "FETCH line: $topline<BR></tt></font></b>"; |
426 | |
427 | fputs ($imap_stream, "$sid FETCH $passed_id BODY[]\r\n"); |
428 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
429 | array_shift($data); |
430 | $wholemessage = implode('', $data); |
431 | |
432 | $ret = "---------------\n$wholemessage"; |
433 | |
a3daaaf3 |
434 | } |
435 | return( $ret ); |
436 | } |
d4467150 |
437 | |
beb9e459 |
438 | function mime_print_body_lines ($imap_stream, $id, $ent_id, $encoding) { |
439 | // do a bit of error correction. If we couldn't find the entity id, just guess |
440 | // that it is the first one. That is usually the case anyway. |
441 | if (!$ent_id) $ent_id = 1; |
b74ba498 |
442 | $sid = sqimap_session_id(); |
1d1e02f4 |
443 | // Don't kill the connection if the browser is over a dialup |
444 | // and it would take over 30 seconds to download it. |
445 | set_time_limit(0); |
446 | |
b74ba498 |
447 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n"); |
448 | $cnt = 0; |
449 | $continue = true; |
450 | $read = fgets ($imap_stream,4096); |
451 | // This could be bad -- if the section has sqimap_session_id() . ' OK' |
452 | // or similar, it will kill the download. |
453 | while (!ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) { |
454 | if (trim($read) == ')==') { |
455 | $read1 = $read; |
456 | $read = fgets ($imap_stream,4096); |
457 | if (ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) { |
458 | return; |
459 | } else { |
460 | echo decodeBody($read1, $encoding) . |
461 | decodeBody($read, $encoding); |
462 | } |
463 | } else if ($cnt) { |
464 | echo decodeBody($read, $encoding); |
465 | } |
466 | $read = fgets ($imap_stream,4096); |
467 | $cnt++; |
468 | } |
beb9e459 |
469 | } |
470 | |
8beafbbc |
471 | /* -[ END MIME DECODING ]----------------------------------------------------------- */ |
d4467150 |
472 | |
aceb0d5c |
473 | |
d4467150 |
474 | |
8beafbbc |
475 | /** This is the first function called. It decides if this is a multipart |
476 | message or if it should be handled as a single entity |
4809f489 |
477 | **/ |
090595e1 |
478 | function decodeMime ($imap_stream, &$header) { |
8beafbbc |
479 | global $username, $key, $imapServerAddress, $imapPort; |
8d8ab69a |
480 | return mime_structure ($imap_stream, $header); |
8beafbbc |
481 | } |
b1dadc61 |
482 | |
cbcf32f6 |
483 | // This is here for debugging purposese. It will print out a list |
484 | // of all the entity IDs that are in the $message object. |
b74ba498 |
485 | /* |
ea48eb25 |
486 | function listEntities ($message) { |
487 | if ($message) { |
cbcf32f6 |
488 | if ($message->header->entity_id) |
b74ba498 |
489 | echo "<tt>" . $message->header->entity_id . ' : ' . $message->header->type0 . '/' . $message->header->type1 . '<br>'; |
cbcf32f6 |
490 | for ($i = 0; $message->entities[$i]; $i++) { |
491 | $msg = listEntities($message->entities[$i], $ent_id); |
492 | if ($msg) |
493 | return $msg; |
494 | } |
ea48eb25 |
495 | } |
496 | } |
b74ba498 |
497 | */ |
ea48eb25 |
498 | |
cbcf32f6 |
499 | // returns a $message object for a particular entity id |
8beafbbc |
500 | function getEntity ($message, $ent_id) { |
501 | if ($message) { |
ea48eb25 |
502 | if ($message->header->entity_id == $ent_id && strlen($ent_id) == strlen($message->header->entity_id)) { |
8beafbbc |
503 | return $message; |
b1dadc61 |
504 | } else { |
cd928157 |
505 | for ($i = 0; isset($message->entities[$i]); $i++) { |
8beafbbc |
506 | $msg = getEntity ($message->entities[$i], $ent_id); |
507 | if ($msg) |
508 | return $msg; |
b1dadc61 |
509 | } |
b74ba498 |
510 | } |
8beafbbc |
511 | } |
512 | } |
513 | |
a3daaaf3 |
514 | // figures out what entity to display and returns the $message object |
515 | // for that entity. |
516 | function findDisplayEntity ($message, $textOnly = 1) { |
517 | global $show_html_default; |
518 | |
519 | $entity = 0; |
520 | |
521 | if ($message) { |
522 | if ( $message->header->type0 == 'multipart' && |
523 | ( $message->header->type1 == 'alternative' || |
524 | $message->header->type1 == 'related' ) && |
525 | $show_html_default && ! $textOnly ) { |
526 | $entity = findDisplayEntityHTML($message); |
527 | } |
528 | |
529 | // Show text/plain or text/html -- the first one we find. |
530 | if ( $entity == 0 && |
531 | $message->header->type0 == 'text' && |
532 | ( $message->header->type1 == 'plain' || |
533 | $message->header->type1 == 'html' ) && |
534 | isset($message->header->entity_id) ) { |
535 | $entity = $message->header->entity_id; |
536 | } |
537 | |
538 | $i = 0; |
539 | while ($entity == 0 && isset($message->entities[$i]) ) { |
540 | $entity = findDisplayEntity($message->entities[$i], $textOnly); |
541 | $i++; |
542 | } |
543 | } |
544 | |
545 | return( $entity ); |
546 | } |
b74ba498 |
547 | |
c3a80dac |
548 | // Shows the HTML version |
549 | function findDisplayEntityHTML ($message) { |
b74ba498 |
550 | if ($message->header->type0 == 'text' && |
c3a80dac |
551 | $message->header->type1 == 'html' && |
b74ba498 |
552 | isset($message->header->entity_id)) |
553 | return $message->header->entity_id; |
c3a80dac |
554 | for ($i = 0; isset($message->entities[$i]); $i ++) { |
555 | $entity = findDisplayEntityHTML($message->entities[$i]); |
b74ba498 |
556 | if ($entity != 0) |
557 | return $entity; |
c3a80dac |
558 | } |
e2ab93e5 |
559 | return 0; |
b1dadc61 |
560 | } |
8405ee35 |
561 | |
d068c0ec |
562 | /** This returns a parsed string called $body. That string can then |
563 | be displayed as the actual message in the HTML. It contains |
564 | everything needed, including HTML Tags, Attachments at the |
565 | bottom, etc. |
4809f489 |
566 | **/ |
8d8ab69a |
567 | function formatBody($imap_stream, $message, $color, $wrap_at) { |
cbcf32f6 |
568 | // this if statement checks for the entity to show as the |
569 | // primary message. To add more of them, just put them in the |
570 | // order that is their priority. |
5f1c529a |
571 | global $startMessage, $username, $key, $imapServerAddress, $imapPort, |
572 | $show_html_default; |
8beafbbc |
573 | |
8beafbbc |
574 | $id = $message->header->id; |
575 | $urlmailbox = urlencode($message->header->mailbox); |
576 | |
e4a256af |
577 | // Get the right entity and redefine message to be this entity |
3ae6e629 |
578 | // Pass the 0 to mean that we want the 'best' viewable one |
579 | $ent_num = findDisplayEntity ($message, 0); |
2c252f5a |
580 | $body_message = getEntity($message, $ent_num); |
b74ba498 |
581 | if (($body_message->header->type0 == 'text') || |
582 | ($body_message->header->type0 == 'rfc822')) { |
583 | |
d51894be |
584 | $body = mime_fetch_body ($imap_stream, $id, $ent_num); |
d4ff4d67 |
585 | $body = decodeBody($body, $body_message->header->encoding); |
b74ba498 |
586 | $hookResults = do_hook("message_body", $body); |
587 | $body = $hookResults[1]; |
b36d403c |
588 | |
d4ff4d67 |
589 | // If there are other types that shouldn't be formatted, add |
b74ba498 |
590 | // them here |
a3daaaf3 |
591 | if ($body_message->header->type1 == 'html') { |
592 | if( $show_html_default <> 1 ) { |
593 | $body = strip_tags( $body ); |
594 | translateText($body, $wrap_at, $body_message->header->charset); |
595 | } else { |
596 | $body = MagicHTML( $body, $id ); |
597 | } |
598 | } else { |
9eea179c |
599 | translateText($body, $wrap_at, $body_message->header->charset); |
b74ba498 |
600 | } |
601 | |
7b9592dc |
602 | $body .= "<SMALL><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$ent_num&mailbox=$urlmailbox&showHeaders=1\">". _("Download this as a file") ."</A></CENTER><BR></SMALL>"; |
b74ba498 |
603 | |
d4ff4d67 |
604 | /** Display the ATTACHMENTS: message if there's more than one part **/ |
dd389be5 |
605 | $body .= "</TD></TR></TABLE>"; |
719534f2 |
606 | if (isset($message->entities[0])) { |
d4ff4d67 |
607 | $body .= formatAttachments ($message, $ent_num, $message->header->mailbox, $id); |
d4ff4d67 |
608 | } |
b74ba498 |
609 | $body .= "</TD></TR></TABLE>"; |
d4ff4d67 |
610 | } else { |
cba164a0 |
611 | $body = formatAttachments ($message, -1, $message->header->mailbox, $id); |
8405ee35 |
612 | } |
b74ba498 |
613 | return( $body ); |
d4467150 |
614 | } |
615 | |
8beafbbc |
616 | // A recursive function that returns a list of attachments with links |
617 | // to where to download these attachments |
618 | function formatAttachments ($message, $ent_id, $mailbox, $id) { |
f4991a86 |
619 | global $where, $what; |
dd389be5 |
620 | global $startMessage, $color; |
719534f2 |
621 | static $ShownHTML = 0; |
b74ba498 |
622 | |
623 | $body = ""; |
624 | if ($ShownHTML == 0) { |
dd389be5 |
625 | $ShownHTML = 1; |
b74ba498 |
626 | |
627 | $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=2 BORDER=0 BGCOLOR=\"$color[0]\"><TR>\n" . |
628 | "<TH ALIGN=\"left\" BGCOLOR=\"$color[9]\"><B>\n" . |
629 | _("Attachments") . ':' . |
630 | "</B></TH></TR><TR><TD>\n" . |
631 | "<TABLE CELLSPACING=0 CELLPADDING=1 BORDER=0>\n" . |
632 | formatAttachments ($message, $ent_id, $mailbox, $id) . |
633 | "</TABLE></TD></TR></TABLE>"; |
634 | |
635 | return( $body ); |
dd389be5 |
636 | } |
b74ba498 |
637 | |
8beafbbc |
638 | if ($message) { |
639 | if (!$message->entities) { |
640 | $type0 = strtolower($message->header->type0); |
641 | $type1 = strtolower($message->header->type1); |
66e1a00e |
642 | $name = decodeHeader($message->header->name); |
b74ba498 |
643 | |
8beafbbc |
644 | if ($message->header->entity_id != $ent_id) { |
888c82e2 |
645 | $filename = decodeHeader($message->header->filename); |
b74ba498 |
646 | if (trim($filename) == '') { |
647 | if (trim($name) == '') { |
648 | if( trim( $message->header->id ) == '' ) |
649 | $display_filename = 'untitled-[' . $message->header->entity_id . ']' ; |
650 | else |
651 | $display_filename = 'cid: ' . $message->header->id; |
652 | // $display_filename = 'untitled-[' . $message->header->entity_id . ']' ; |
653 | } else { |
654 | $display_filename = $name; |
655 | $filename = $name; |
656 | } |
8beafbbc |
657 | } else { |
658 | $display_filename = $filename; |
659 | } |
b74ba498 |
660 | |
8beafbbc |
661 | $urlMailbox = urlencode($mailbox); |
662 | $ent = urlencode($message->header->entity_id); |
b74ba498 |
663 | |
664 | $DefaultLink = |
bc104ef3 |
665 | "../src/download.php?startMessage=$startMessage&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent"; |
dd389be5 |
666 | if ($where && $what) |
667 | $DefaultLink .= '&where=' . urlencode($where) . '&what=' . urlencode($what); |
701c9c6b |
668 | $Links['download link']['text'] = _("download"); |
b74ba498 |
669 | $Links['download link']['href'] = |
bc104ef3 |
670 | "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent"; |
dd389be5 |
671 | $ImageURL = ''; |
b74ba498 |
672 | |
dd389be5 |
673 | $HookResults = do_hook("attachment $type0/$type1", $Links, |
b74ba498 |
674 | $startMessage, $id, $urlMailbox, $ent, $DefaultLink, |
ef30bf50 |
675 | $display_filename, $where, $what); |
dd389be5 |
676 | |
677 | $Links = $HookResults[1]; |
678 | $DefaultLink = $HookResults[6]; |
679 | |
b74ba498 |
680 | $body .= '<TR><TD> </TD><TD>' . |
681 | "<A HREF=\"$DefaultLink\">$display_filename</A> </TD>" . |
682 | '<TD><SMALL><b>' . show_readable_size($message->header->size) . |
683 | '</b> </small></TD>' . |
684 | "<TD><SMALL>[ $type0/$type1 ] </SMALL></TD>" . |
685 | '<TD><SMALL>'; |
ea48eb25 |
686 | if ($message->header->description) |
dd389be5 |
687 | $body .= '<b>' . htmlspecialchars($message->header->description) . '</b>'; |
fde32e3f |
688 | $body .= '</SMALL></TD><TD><SMALL> '; |
b74ba498 |
689 | |
690 | |
dd389be5 |
691 | $SkipSpaces = 1; |
b74ba498 |
692 | foreach ($Links as $Val) { |
693 | if ($SkipSpaces) { |
dd389be5 |
694 | $SkipSpaces = 0; |
b74ba498 |
695 | } else { |
fde32e3f |
696 | $body .= ' | '; |
dd389be5 |
697 | } |
fde32e3f |
698 | $body .= '<a href="' . $Val['href'] . '">' . $Val['text'] . '</a>'; |
dd389be5 |
699 | } |
b74ba498 |
700 | |
dd389be5 |
701 | unset($Links); |
b74ba498 |
702 | |
fde32e3f |
703 | $body .= "</SMALL></TD></TR>\n"; |
8beafbbc |
704 | } |
8beafbbc |
705 | } else { |
706 | for ($i = 0; $i < count($message->entities); $i++) { |
707 | $body .= formatAttachments ($message->entities[$i], $ent_id, $mailbox, $id); |
708 | } |
8beafbbc |
709 | } |
b74ba498 |
710 | return( $body ); |
8beafbbc |
711 | } |
712 | } |
4809f489 |
713 | |
714 | |
715 | /** this function decodes the body depending on the encoding type. **/ |
d4467150 |
716 | function decodeBody($body, $encoding) { |
623332f3 |
717 | $body = str_replace("\r\n", "\n", $body); |
d4467150 |
718 | $encoding = strtolower($encoding); |
7831268e |
719 | |
358f007e |
720 | global $show_html_default; |
721 | |
b74ba498 |
722 | if ($encoding == 'quoted-printable') { |
ef3f274f |
723 | $body = quoted_printable_decode($body); |
b74ba498 |
724 | |
725 | |
726 | /* |
727 | Following code has been comented as I see no reason for it. |
728 | If there is any please tell me a mingo@rotedic.com |
729 | |
ef3f274f |
730 | while (ereg("=\n", $body)) |
731 | $body = ereg_replace ("=\n", "", $body); |
b74ba498 |
732 | */ |
733 | } else if ($encoding == 'base64') { |
ef3f274f |
734 | $body = base64_decode($body); |
d4467150 |
735 | } |
b74ba498 |
736 | |
a47b5200 |
737 | // All other encodings are returned raw. |
ef3f274f |
738 | return $body; |
aceb0d5c |
739 | } |
a4c2cd49 |
740 | |
741 | |
b74ba498 |
742 | // This functions decode strings that is encoded according to |
a4c2cd49 |
743 | // RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text). |
2e434774 |
744 | function decodeHeader ($string) { |
b74ba498 |
745 | if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', |
a4c2cd49 |
746 | $string, $res)) { |
1fd97780 |
747 | if (ucfirst($res[2]) == "B") { |
748 | $replace = base64_decode($res[3]); |
a4c2cd49 |
749 | } else { |
1fd97780 |
750 | $replace = ereg_replace("_", " ", $res[3]); |
b74ba498 |
751 | // Convert lowercase Quoted Printable to uppercase for |
752 | // quoted_printable_decode to understand it. |
753 | while (ereg("(=(([0-9][abcdef])|([abcdef][0-9])|([abcdef][abcdef])))", $replace, $res)) { |
754 | $replace = str_replace($res[1], strtoupper($res[1]), $replace); |
755 | } |
a4c2cd49 |
756 | $replace = quoted_printable_decode($replace); |
757 | } |
758 | |
1fd97780 |
759 | $replace = charset_decode ($res[1], $replace); |
a4c2cd49 |
760 | |
9be55c4b |
761 | // Remove the name of the character set. |
762 | $string = eregi_replace ('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', |
a4c2cd49 |
763 | $replace, $string); |
9be55c4b |
764 | |
2e434774 |
765 | // In case there should be more encoding in the string: recurse |
766 | return (decodeHeader($string)); |
b74ba498 |
767 | } else |
a4c2cd49 |
768 | return ($string); |
769 | } |
770 | |
c3084273 |
771 | // Encode a string according to RFC 1522 for use in headers if it |
bb60fa3f |
772 | // contains 8-bit characters or anything that looks like it should |
773 | // be encoded. |
c3084273 |
774 | function encodeHeader ($string) { |
775 | global $default_charset; |
b74ba498 |
776 | |
f7b3ba37 |
777 | // Encode only if the string contains 8-bit characters or =? |
778 | $j = strlen( $string ); |
779 | $l = FALSE; // Must be encoded ? |
780 | $ret = ''; |
781 | for( $i=0; $i < $j; ++$i) { |
782 | switch( $string{$i} ) { |
783 | case '=': |
b74ba498 |
784 | $ret .= '=3D'; |
785 | break; |
786 | case '?': |
787 | $l = TRUE; |
788 | $ret .= '=3F'; |
789 | break; |
790 | case '_': |
791 | $ret .= '=5F'; |
792 | break; |
793 | case ' ': |
794 | $ret .= '_'; |
795 | break; |
796 | default: |
797 | $k = ord( $string{$i} ); |
798 | if( $k > 126 ) { |
799 | $ret .= sprintf("=%02X", $k); |
800 | $l = TRUE; |
801 | } else |
802 | $ret .= $string{$i}; |
f7b3ba37 |
803 | } |
804 | } |
b74ba498 |
805 | |
f7b3ba37 |
806 | if( $l ) |
807 | $string = "=?$default_charset?Q?$ret?="; |
b74ba498 |
808 | |
f7b3ba37 |
809 | return( $string ); |
810 | } |
c3084273 |
811 | |
a3daaaf3 |
812 | /* |
813 | Strips dangerous tags from html messages. |
814 | */ |
815 | |
816 | function MagicHTML( $body, $id ) { |
817 | |
818 | global $message, $PHP_SELF, $HTTP_SERVER_VARS; |
819 | |
820 | $j = strlen( $body ); // Legnth of the HTML |
821 | $ret = ''; // Returned string |
822 | $bgcolor = '#ffffff'; // Background style color (defaults to white) |
823 | $leftmargin = ''; // Left margin style |
824 | $title = ''; // HTML title if any |
825 | |
826 | $i = 0; |
827 | while( $i < $j ) { |
828 | if( $body{$i} == '<' ) { |
829 | $tag = $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}; |
830 | switch( strtoupper( $tag ) ) { |
831 | // Strips the entire tag and contents |
832 | case 'APPL': |
833 | case 'EMBB': |
834 | case 'FRAM': |
835 | case 'SCRI': |
836 | case 'OBJE': |
837 | $etg = '/' . $tag; |
838 | while( $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}.$body{$i+5} <> $etg && |
839 | $i < $j ) $i++; |
840 | while( $i < $j && $body{++$i} <> '>' ); |
841 | // $ret .= "<!-- $tag removed -->"; |
842 | break; |
843 | // Substitute Title |
844 | case 'TITL': |
845 | $i += 5; |
846 | while( $body{$i} <> '>' && // </title> |
847 | $i < $j ) |
848 | $i++; |
849 | $i++; |
850 | $title = ''; |
851 | while( $body{$i} <> '<' && // </title> |
852 | $i < $j ) { |
853 | $title .= $body{$i}; |
854 | $i++; |
855 | } |
856 | $i += 7; |
857 | break; |
858 | // Destroy these tags |
859 | case 'HTML': |
860 | case 'HEAD': |
861 | case '/HTM': |
862 | case '/HEA': |
863 | case '!DOC': |
864 | case 'META': |
865 | case 'DIV ': |
866 | case '/DIV': |
867 | case '!-- ': |
868 | $i += 4; |
869 | while( $body{$i} <> '>' && |
870 | $i < $j ) |
871 | $i++; |
872 | // $i++; |
873 | break; |
874 | case 'STYL': |
875 | $i += 5; |
876 | while( $body{$i} <> '>' && // </title> |
877 | $i < $j ) |
878 | $i++; |
879 | $i++; |
880 | // We parse the style to look for interesting stuff |
881 | $styleblk = ''; |
882 | while( $body{$i} <> '>' && |
883 | $i < $j ) { |
884 | // First we get the name of the style |
885 | $style = ''; |
886 | while( $body{$i} <> '>' && |
887 | $body{$i} <> '<' && |
888 | $body{$i} <> '{' && |
889 | $i < $j ) { |
890 | if( isnoSep( $body{$i} ) ) |
891 | $style .= $body{$i}; |
892 | $i++; |
893 | } |
5487a8d0 |
894 | stripComments( $i, $j, $body ); |
a3daaaf3 |
895 | $style = strtoupper( trim( $style ) ); |
896 | if( $style == 'BODY' ) { |
897 | // Next we look into the definitions of the body style |
898 | while( $body{$i} <> '>' && |
899 | $body{$i} <> '}' && |
900 | $i < $j ) { |
901 | // We look for the background color if any. |
902 | if( substr( $body, $i, 17 ) == 'BACKGROUND-COLOR:' ) { |
903 | $i += 17; |
904 | $bgcolor = getStyleData( $i, $j, $body ); |
905 | } elseif ( substr( $body, $i, 12 ) == 'MARGIN-LEFT:' ) { |
906 | $i += 12; |
907 | $leftmargin = getStyleData( $i, $j, $body ); |
908 | } |
909 | $i++; |
910 | } |
911 | } else { |
912 | // Other style are mantained |
913 | $styleblk .= "$style "; |
914 | while( $body{$i} <> '>' && |
915 | $body{$i} <> '<' && |
916 | $body{$i} <> '}' && |
917 | $i < $j ) { |
918 | $styleblk .= $body{$i}; |
919 | $i++; |
920 | } |
921 | $styleblk .= $body{$i}; |
922 | } |
5487a8d0 |
923 | stripComments( $i, $j, $body ); |
a3daaaf3 |
924 | if( $body{$i} <> '>' ) |
925 | $i++; |
926 | } |
927 | if( $styleblk <> '' ) |
928 | $ret .= "<style>$styleblk"; |
929 | break; |
930 | case 'BODY': |
931 | if( $title <> '' ) |
932 | $ret .= '<b>' . _("Title:") . " </b>$title<br>\n"; |
933 | $ret .= "<TABLE"; |
934 | $i += 5; |
4aaea201 |
935 | if (! isset($base)) |
936 | $base = ''; |
a3daaaf3 |
937 | $ret .= stripEvent( $i, $j, $body, $id, $base ); |
938 | //if( $bgcolor <> '' ) |
939 | $ret .= " bgcolor=$bgcolor"; |
940 | $ret .= ' width=100%><tr>'; |
941 | if( $leftmargin <> '' ) |
942 | $ret .= "<td width=$leftmargin> </td>"; |
943 | $ret .= '<td>'; |
944 | break; |
945 | case 'BASE': |
946 | $i += 5; |
947 | $base = ''; |
948 | while( !isNoSep( $body{$i} ) && |
949 | $i < $j ) |
950 | $i++; |
951 | if( strcasecmp( substr( $base, 0, 4 ), 'href' ) ) { |
952 | $i += 5; |
953 | while( !isNoSep( $body{$i} ) && |
954 | $i < $j ) |
955 | $i++; |
956 | while( $body{$i} <> '>' && |
957 | $i < $j ) { |
958 | if( $body{$i} <> '"' ) |
959 | $base .= $body{$i}; |
960 | $i++; |
961 | } |
962 | // Debuging $ret .= "<!-- base == $base -->"; |
963 | if( strcasecmp( substr( $base, 0, 4 ), 'file' ) <> 0 ) |
964 | $ret .= "\n<BASE HREF=\"$base\">\n"; |
965 | } |
966 | break; |
967 | case '/BOD': |
968 | $ret .= '</td></tr></TABLE>'; |
969 | $i += 6; |
970 | break; |
971 | default: |
972 | // Following tags can contain some event handler, lets search it |
973 | stripComments( $i, $j, $body ); |
4aaea201 |
974 | if (! isset($base)) |
975 | $base = ''; |
a3daaaf3 |
976 | $ret .= stripEvent( $i, $j, $body, $id, $base ) . '>'; |
977 | // $ret .= "<!-- $tag detected -->"; |
978 | } |
979 | } else { |
980 | $ret .= $body{$i}; |
981 | } |
982 | $i++; |
983 | } |
984 | |
985 | return( "\n\n<!-- HTML Output ahead -->\n" . |
986 | $ret . |
987 | "\n<!-- END of HTML Output --><base href=\"". |
988 | $HTTP_SERVER_VARS["SERVER_NAME"] . substr( $PHP_SELF, 0, strlen( $PHP_SELF ) - 13 ) . |
989 | "\">\n\n" ); |
990 | } |
991 | |
992 | function isNoSep( $char ) { |
993 | |
994 | switch( $char ) { |
995 | case ' ': |
996 | case "\n": |
997 | case "\t": |
998 | case "\r": |
999 | case '>': |
1000 | case '"': |
1001 | return( FALSE ); |
1002 | break; |
1003 | default: |
1004 | return( TRUE ); |
1005 | } |
1006 | |
1007 | } |
1008 | |
1009 | /* |
1010 | The following function is usefull to remove extra data that can cause |
1011 | html not to display properly. Especialy with MS stuff. |
1012 | */ |
1013 | |
1014 | function stripComments( &$i, $j, &$body ) { |
1015 | |
1016 | while( $body{$i}.$body{$i+1}.$body{$i+2}.$body{$i+3} == '<!--' && |
1017 | $i < $j ) { |
1018 | $i += 5; |
1019 | while( $body{$i-2}.$body{$i-1}.$body{$i} <> '-->' && |
1020 | $i < $j ) |
1021 | $i++; |
1022 | $i++; |
1023 | } |
1024 | |
1025 | return; |
1026 | |
1027 | } |
1028 | |
1029 | /* Gets the style data of a specific style */ |
1030 | |
1031 | function getStyleData( &$i, $j, &$body ) { |
1032 | |
1033 | // We skip spaces |
1034 | while( $body{$i} <> '>' && !isNoSep( $body{$i} ) && |
1035 | $i < $j ) { |
1036 | $i++; |
1037 | } |
1038 | // And get the color |
1039 | $ret = ''; |
1040 | while( isNoSep( $body{$i} ) && |
1041 | $i < $j ) { |
1042 | $ret .= $body{$i}; |
1043 | $i++; |
1044 | } |
1045 | |
1046 | return( $ret ); |
1047 | } |
1048 | |
1049 | /* |
1050 | Private function for strip_dangerous_tag. Look for event based coded and "remove" it |
1051 | change on with no (onload -> noload) |
1052 | */ |
1053 | |
1054 | function stripEvent( &$i, $j, &$body, $id, $base ) { |
1055 | |
1056 | global $message; |
1057 | |
1058 | $ret = ''; |
1059 | |
1060 | while( $body{$i} <> '>' && |
1061 | $i < $j ) { |
1062 | $etg = strtolower($body{$i}.$body{$i+1}.$body{$i+2}); |
1063 | switch( $etg ) { |
1064 | case '../': |
1065 | // Retrolinks are not allowed without a base because they mess with SM security |
1066 | if( $base == '' ) { |
1067 | $i += 2; |
1068 | } else { |
1069 | $ret .= '.'; |
1070 | } |
1071 | break; |
1072 | case 'cid': |
1073 | // Internal link |
1074 | $k = $i-1; |
1075 | if( $body{$i+3} == ':') { |
1076 | $i +=4; |
1077 | $name = ''; |
1078 | while( isNoSep( $body{$i} ) && |
1079 | $i < $j ) |
1080 | $name .= $body{$i++}; |
1081 | if( $name <> '' ) { |
1082 | $ret .= "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=" . |
1083 | urlencode( $message->header->mailbox ) . |
1084 | "&passed_ent_id=" . find_ent_id( $name, $message ); |
1085 | if( $body{$k} == '"' ) |
1086 | $ret .= '" '; |
1087 | else |
1088 | $ret .= ' '; |
1089 | } |
1090 | if( $body{$i} == '>' ) |
1091 | $i -= 1; |
1092 | } |
1093 | break; |
1094 | case ' on': |
1095 | case "\non": |
1096 | case "\ron": |
1097 | case "\ton": |
1098 | $ret .= ' no'; |
1099 | $i += 2; |
1100 | break; |
1101 | case 'pt:': |
1102 | if( strcasecmp( $body{$i-4}.$body{$i-3}.$body{$i-2}.$body{$i-1}.$body{$i}.$body{$i+1}.$body{$i+2}, 'script:') == 0 ) { |
1103 | $ret .= '_no/'; |
1104 | } else { |
1105 | $ret .= $etg; |
1106 | } |
1107 | $i += 2; |
1108 | break; |
1109 | default: |
1110 | $ret .= $body{$i}; |
1111 | } |
1112 | $i++; |
1113 | } |
1114 | return( $ret ); |
1115 | } |
1116 | |
1117 | |
1118 | /* This function trys to locate the entity_id of a specific mime element */ |
1119 | |
1120 | function find_ent_id( $id, $message ) { |
1121 | |
1122 | $ret = ''; |
1123 | for ($i=0; $ret == '' && $i < count($message->entities); $i++) { |
1124 | |
1125 | if( $message->entities[$i]->header->entity_id == '' ) { |
1126 | $ret = find_ent_id( $id, $message->entities[$i] ); |
1127 | } else { |
1128 | if( strcasecmp( $message->entities[$i]->header->id, $id ) == 0 ) |
1129 | $ret = $message->entities[$i]->header->entity_id; |
1130 | } |
1131 | |
1132 | } |
1133 | |
1134 | return( $ret ); |
1135 | |
1136 | } |
5487a8d0 |
1137 | ?> |