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 = ''; |
020abcf3 |
27 | // var $priority = ""; |
8beafbbc |
28 | } |
b74ba498 |
29 | |
8beafbbc |
30 | class message { |
31 | /** message is the object that contains messages. It is a recursive |
b74ba498 |
32 | object in that through the $entities variable, it can contain |
8beafbbc |
33 | more objects of type message. See documentation in mime.txt for |
34 | a better description of how this works. |
b74ba498 |
35 | **/ |
61423189 |
36 | var $header = ''; |
2df6ca53 |
37 | var $entities = array(); |
b74ba498 |
38 | |
8beafbbc |
39 | function addEntity ($msg) { |
61423189 |
40 | $this->entities[] = $msg; |
8beafbbc |
41 | } |
42 | } |
1fd97780 |
43 | |
8beafbbc |
44 | /* --------------------------------------------------------------------------------- */ |
45 | /* MIME DECODING */ |
46 | /* --------------------------------------------------------------------------------- */ |
b74ba498 |
47 | |
cbcf32f6 |
48 | // This function gets the structure of a message and stores it in the "message" class. |
49 | // It will return this object for use with all relevant header information and |
50 | // fully parsed into the standard "message" object format. |
8beafbbc |
51 | function mime_structure ($imap_stream, $header) { |
b74ba498 |
52 | |
53 | sqimap_messages_flag ($imap_stream, $header->id, $header->id, 'Seen'); |
54 | $ssid = sqimap_session_id(); |
55 | $lsid = strlen( $ssid ); |
8beafbbc |
56 | $id = $header->id; |
b74ba498 |
57 | fputs ($imap_stream, "$ssid FETCH $id BODYSTRUCTURE\r\n"); |
245a6892 |
58 | // |
59 | // This should use sqimap_read_data instead of reading it itself |
60 | // |
e79bed1b |
61 | $read = fgets ($imap_stream, 10000); |
b74ba498 |
62 | $bodystructure = ''; |
63 | while( substr($read, 0, $lsid) <> $ssid && |
64 | !feof( $imap_stream ) ) { |
3e1266ef |
65 | $bodystructure .= $read; |
254925d1 |
66 | $read = fgets ($imap_stream, 10000); |
254925d1 |
67 | } |
22ef7536 |
68 | $read = $bodystructure; |
8beafbbc |
69 | |
8beafbbc |
70 | // isolate the body structure and remove beginning and end parenthesis |
b74ba498 |
71 | $read = trim(substr ($read, strpos(strtolower($read), 'bodystructure') + 13)); |
ea48eb25 |
72 | $read = trim(substr ($read, 0, -1)); |
73 | $end = mime_match_parenthesis(0, $read); |
74 | while ($end == strlen($read)-1) { |
75 | $read = trim(substr ($read, 0, -1)); |
76 | $read = trim(substr ($read, 1)); |
77 | $end = mime_match_parenthesis(0, $read); |
78 | } |
8beafbbc |
79 | |
85daa3ad |
80 | $msg = mime_parse_structure ($read, 0); |
8beafbbc |
81 | $msg->header = $header; |
82 | return $msg; |
83 | } |
84 | |
cbcf32f6 |
85 | // this starts the parsing of a particular structure. It is called recursively, |
86 | // so it can be passed different structures. It returns an object of type |
87 | // $message. |
88 | // First, it checks to see if it is a multipart message. If it is, then it |
89 | // handles that as it sees is necessary. If it is just a regular entity, |
90 | // then it parses it and adds the necessary header information (by calling out |
91 | // to mime_get_elements() |
8beafbbc |
92 | function mime_parse_structure ($structure, $ent_id) { |
b74ba498 |
93 | |
8beafbbc |
94 | $msg = new message(); |
b74ba498 |
95 | if ($structure{0} == '(') { |
8beafbbc |
96 | $ent_id = mime_new_element_level($ent_id); |
97 | $start = $end = -1; |
98 | do { |
8beafbbc |
99 | $start = $end+1; |
100 | $end = mime_match_parenthesis ($start, $structure); |
b74ba498 |
101 | |
8beafbbc |
102 | $element = substr($structure, $start+1, ($end - $start)-1); |
ea48eb25 |
103 | $ent_id = mime_increment_id ($ent_id); |
8beafbbc |
104 | $newmsg = mime_parse_structure ($element, $ent_id); |
105 | $msg->addEntity ($newmsg); |
b74ba498 |
106 | } while ($structure{$end+1} == '('); |
8beafbbc |
107 | } else { |
108 | // parse the elements |
090595e1 |
109 | $msg = mime_get_element ($structure, $msg, $ent_id); |
8beafbbc |
110 | } |
bc64f471 |
111 | return $msg; |
8beafbbc |
112 | } |
113 | |
114 | // Increments the element ID. An element id can look like any of |
115 | // the following: 1, 1.2, 4.3.2.4.1, etc. This function increments |
116 | // the last number of the element id, changing 1.2 to 1.3. |
117 | function mime_increment_id ($id) { |
b74ba498 |
118 | |
8beafbbc |
119 | if (strpos($id, ".")) { |
120 | $first = substr($id, 0, strrpos($id, ".")); |
ea48eb25 |
121 | $last = substr($id, strrpos($id, ".")+1); |
8beafbbc |
122 | $last++; |
ea48eb25 |
123 | $new = $first . "." .$last; |
8beafbbc |
124 | } else { |
125 | $new = $id + 1; |
126 | } |
b74ba498 |
127 | |
8beafbbc |
128 | return $new; |
129 | } |
130 | |
131 | // See comment for mime_increment_id(). |
132 | // This adds another level on to the entity_id changing 1.3 to 1.3.0 |
b74ba498 |
133 | // NOTE: 1.3.0 is not a valid element ID. It MUST be incremented |
8beafbbc |
134 | // before it can be used. I left it this way so as not to have |
135 | // to make a special case if it is the first entity_id. It |
136 | // always increments it, and that works fine. |
137 | function mime_new_element_level ($id) { |
ea48eb25 |
138 | |
b74ba498 |
139 | if (!$id) { |
140 | $id = 0; |
141 | } else { |
142 | $id = $id . '.0'; |
143 | } |
144 | |
145 | return( $id ); |
8beafbbc |
146 | } |
147 | |
ea48eb25 |
148 | function mime_get_element (&$structure, $msg, $ent_id) { |
b74ba498 |
149 | |
8beafbbc |
150 | $elem_num = 1; |
ea48eb25 |
151 | $msg->header = new msg_header(); |
152 | $msg->header->entity_id = $ent_id; |
4bbe6ccc |
153 | $properties = array(); |
b74ba498 |
154 | |
8beafbbc |
155 | while (strlen($structure) > 0) { |
156 | $structure = trim($structure); |
b74ba498 |
157 | $char = $structure{0}; |
8beafbbc |
158 | |
b74ba498 |
159 | if (strtolower(substr($structure, 0, 3)) == 'nil') { |
160 | $text = ''; |
8beafbbc |
161 | $structure = substr($structure, 3); |
b74ba498 |
162 | } else if ($char == '"') { |
8beafbbc |
163 | // loop through until we find the matching quote, and return that as a string |
164 | $pos = 1; |
b74ba498 |
165 | $text = ''; |
166 | while ( ($char = $structure{$pos} ) <> '"' && $pos < strlen($structure)) { |
8beafbbc |
167 | $text .= $char; |
168 | $pos++; |
b74ba498 |
169 | } |
8beafbbc |
170 | $structure = substr($structure, strlen($text) + 2); |
b74ba498 |
171 | } else if ($char == '(') { |
8beafbbc |
172 | // comment me |
173 | $end = mime_match_parenthesis (0, $structure); |
174 | $sub = substr($structure, 1, $end-1); |
175 | $properties = mime_get_props($properties, $sub); |
176 | $structure = substr($structure, strlen($sub) + 2); |
177 | } else { |
178 | // loop through until we find a space or an end parenthesis |
179 | $pos = 0; |
b74ba498 |
180 | $char = $structure{$pos}; |
181 | $text = ''; |
182 | while ($char != ' ' && $char != ')' && $pos < strlen($structure)) { |
8beafbbc |
183 | $text .= $char; |
184 | $pos++; |
b74ba498 |
185 | $char = $structure{$pos}; |
aceb0d5c |
186 | } |
8beafbbc |
187 | $structure = substr($structure, strlen($text)); |
aceb0d5c |
188 | } |
8beafbbc |
189 | |
190 | // This is where all the text parts get put into the header |
191 | switch ($elem_num) { |
b74ba498 |
192 | case 1: |
22ef7536 |
193 | $msg->header->type0 = strtolower($text); |
8beafbbc |
194 | break; |
b74ba498 |
195 | case 2: |
22ef7536 |
196 | $msg->header->type1 = strtolower($text); |
8beafbbc |
197 | break; |
b74ba498 |
198 | case 4: // Id |
199 | // Invisimail enclose images with <> |
200 | $msg->header->id = str_replace( '<', '', str_replace( '>', '', $text ) ); |
201 | break; |
ea48eb25 |
202 | case 5: |
203 | $msg->header->description = $text; |
ea48eb25 |
204 | break; |
8beafbbc |
205 | case 6: |
22ef7536 |
206 | $msg->header->encoding = strtolower($text); |
8beafbbc |
207 | break; |
208 | case 7: |
ea48eb25 |
209 | $msg->header->size = $text; |
8beafbbc |
210 | break; |
211 | default: |
b74ba498 |
212 | if ($msg->header->type0 == 'text' && $elem_num == 8) { |
cbcf32f6 |
213 | // This is a plain text message, so lets get the number of lines |
214 | // that it contains. |
ea48eb25 |
215 | $msg->header->num_lines = $text; |
cbcf32f6 |
216 | |
b74ba498 |
217 | } else if ($msg->header->type0 == 'message' && $msg->header->type1 == 'rfc822' && $elem_num == 8) { |
218 | // This is an encapsulated message, so lets start all over again and |
ea48eb25 |
219 | // parse this message adding it on to the existing one. |
220 | $structure = trim($structure); |
b74ba498 |
221 | if ( $structure{0} == '(' ) { |
ea48eb25 |
222 | $e = mime_match_parenthesis (0, $structure); |
223 | $structure = substr($structure, 0, $e); |
224 | $structure = substr($structure, 1); |
225 | $m = mime_parse_structure($structure, $msg->header->entity_id); |
b74ba498 |
226 | |
cbcf32f6 |
227 | // the following conditional is there to correct a bug that wasn't |
228 | // incrementing the entity IDs correctly because of the special case |
229 | // that message/rfc822 is. This fixes it fine. |
b74ba498 |
230 | if (substr($structure, 1, 1) != '(') |
ea48eb25 |
231 | $m->header->entity_id = mime_increment_id(mime_new_element_level($ent_id)); |
b74ba498 |
232 | |
cbcf32f6 |
233 | // Now we'll go through and reformat the results. |
ea48eb25 |
234 | if ($m->entities) { |
235 | for ($i=0; $i < count($m->entities); $i++) { |
ea48eb25 |
236 | $msg->addEntity($m->entities[$i]); |
237 | } |
238 | } else { |
ea48eb25 |
239 | $msg->addEntity($m); |
240 | } |
b74ba498 |
241 | $structure = ""; |
ea48eb25 |
242 | } |
8beafbbc |
243 | } |
244 | break; |
245 | } |
246 | $elem_num++; |
247 | $text = ""; |
248 | } |
249 | // loop through the additional properties and put those in the various headers |
b74ba498 |
250 | if ($msg->header->type0 != 'message') { |
cbcf32f6 |
251 | for ($i=0; $i < count($properties); $i++) { |
b74ba498 |
252 | $msg->header->{$properties[$i]['name']} = $properties[$i]['value']; |
cbcf32f6 |
253 | } |
ea48eb25 |
254 | } |
e4a256af |
255 | |
ea48eb25 |
256 | return $msg; |
8beafbbc |
257 | } |
258 | |
259 | // I did most of the MIME stuff yesterday (June 20, 2000), but I couldn't |
260 | // figure out how to do this part, so I decided to go to bed. I woke up |
261 | // in the morning and had a flash of insight. I went to the white-board |
262 | // and scribbled it out, then spent a bit programming it, and this is the |
263 | // result. Nothing complicated, but I think my brain was fried yesterday. |
cbcf32f6 |
264 | // Funny how that happens some times. |
8beafbbc |
265 | // |
266 | // This gets properties in a nested parenthesisized list. For example, |
267 | // this would get passed something like: ("attachment" ("filename" "luke.tar.gz")) |
268 | // This returns an array called $props with all paired up properties. |
b74ba498 |
269 | // It ignores the "attachment" for now, maybe that should change later |
8beafbbc |
270 | // down the road. In this case, what is returned is: |
271 | // $props[0]["name"] = "filename"; |
272 | // $props[0]["value"] = "luke.tar.gz"; |
273 | function mime_get_props ($props, $structure) { |
b74ba498 |
274 | |
8beafbbc |
275 | while (strlen($structure) > 0) { |
276 | $structure = trim($structure); |
b74ba498 |
277 | $char = $structure{0}; |
8beafbbc |
278 | |
b74ba498 |
279 | if ($char == '"') { |
8beafbbc |
280 | $pos = 1; |
b74ba498 |
281 | $tmp = ''; |
282 | while ( ( $char = $structure{$pos} ) != '"' && |
283 | $pos < strlen($structure)) { |
8beafbbc |
284 | $tmp .= $char; |
285 | $pos++; |
b74ba498 |
286 | } |
8beafbbc |
287 | $structure = trim(substr($structure, strlen($tmp) + 2)); |
b74ba498 |
288 | $char = $structure{0}; |
8beafbbc |
289 | |
b74ba498 |
290 | if ($char == '"') { |
8beafbbc |
291 | $pos = 1; |
b74ba498 |
292 | $value = ''; |
293 | while ( ( $char = $structure{$pos} ) != '"' && |
294 | $pos < strlen($structure) ) { |
8beafbbc |
295 | $value .= $char; |
296 | $pos++; |
b74ba498 |
297 | } |
8beafbbc |
298 | $structure = trim(substr($structure, strlen($tmp) + 2)); |
b74ba498 |
299 | |
8beafbbc |
300 | $k = count($props); |
b74ba498 |
301 | $props[$k]['name'] = strtolower($tmp); |
302 | $props[$k]['value'] = $value; |
303 | } else if ($char == '(') { |
8beafbbc |
304 | $end = mime_match_parenthesis (0, $structure); |
305 | $sub = substr($structure, 1, $end-1); |
b74ba498 |
306 | if (! isset($props)) |
307 | $props = array(); |
8beafbbc |
308 | $props = mime_get_props($props, $sub); |
309 | $structure = substr($structure, strlen($sub) + 2); |
310 | } |
311 | return $props; |
b74ba498 |
312 | } else if ($char == '(') { |
8beafbbc |
313 | $end = mime_match_parenthesis (0, $structure); |
314 | $sub = substr($structure, 1, $end-1); |
315 | $props = mime_get_props($props, $sub); |
316 | $structure = substr($structure, strlen($sub) + 2); |
ea48eb25 |
317 | return $props; |
8beafbbc |
318 | } else { |
319 | return $props; |
7831268e |
320 | } |
8beafbbc |
321 | } |
322 | } |
7831268e |
323 | |
8beafbbc |
324 | // Matches parenthesis. It will return the position of the matching |
325 | // parenthesis in $structure. For instance, if $structure was: |
326 | // ("text" "plain" ("val1name", "1") nil ... ) |
327 | // x x |
328 | // then this would return 42 to match up those two. |
329 | function mime_match_parenthesis ($pos, $structure) { |
b74ba498 |
330 | |
331 | $j = strlen( $structure ); |
8beafbbc |
332 | |
333 | // ignore all extra characters |
5ffe5a7e |
334 | // If inside of a string, skip string -- Boundary IDs and other |
335 | // things can have ) in them. |
b74ba498 |
336 | if( $structure{$pos} != '(' ) |
337 | return( $j ); |
338 | |
339 | while( $pos < $j ) { |
8beafbbc |
340 | $pos++; |
b74ba498 |
341 | if ($structure{$pos} == ')') { |
8beafbbc |
342 | return $pos; |
b74ba498 |
343 | } elseif ($structure{$pos} == '"') { |
344 | $pos++; |
345 | while( $structure{$pos} != '"' && |
346 | $pos < $j ) { |
347 | if (substr($structure, $pos, 2) == '\\"') |
348 | $pos++; |
349 | elseif (substr($structure, $pos, 2) == '\\\\') |
350 | $pos++; |
351 | $pos++; |
5ffe5a7e |
352 | } |
b74ba498 |
353 | } elseif ( $structure{$pos} == '(' ) { |
8beafbbc |
354 | $pos = mime_match_parenthesis ($pos, $structure); |
355 | } |
d4467150 |
356 | } |
377a40b2 |
357 | echo "Error decoding mime structure. Report this as a bug!<br>\n"; |
b74ba498 |
358 | return( $pos ); |
8beafbbc |
359 | } |
d4467150 |
360 | |
a3daaaf3 |
361 | function mime_fetch_body ($imap_stream, $id, $ent_id ) { |
362 | // do a bit of error correction. If we couldn't find the entity id, just guess |
363 | // that it is the first one. That is usually the case anyway. |
364 | if (!$ent_id) |
365 | $ent_id = 1; |
366 | $sid = sqimap_session_id(); |
367 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n"); |
368 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
369 | $topline = array_shift($data); |
370 | while (! ereg('\\* [0-9]+ FETCH ', $topline) && $data) |
371 | $topline = array_shift($data); |
372 | $wholemessage = implode('', $data); |
373 | if (ereg('\\{([^\\}]*)\\}', $topline, $regs)) { |
374 | $ret = substr( $wholemessage, 0, $regs[1] ); |
375 | /* |
376 | There is some information in the content info header that could be important |
377 | in order to parse html messages. Let's get them here. |
378 | */ |
379 | if( $ret{0} == '<' ) { |
380 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id.MIME]\r\n"); |
381 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
382 | $base = ''; |
383 | $k = 10; |
384 | foreach( $data as $d ) { |
385 | if( substr( $d, 0, 13 ) == 'Content-Base:' ) { |
386 | $j = strlen( $d ); |
387 | $i = 13; |
388 | $base = ''; |
389 | while( $i < $j && |
390 | ( !isNoSep( $d{$i} ) || $d{$i} == '"' ) ) |
391 | $i++; |
392 | while( $i < $j ) { |
393 | if( isNoSep( $d{$i} ) ) |
394 | $base .= $d{$i}; |
395 | $i++; |
396 | } |
397 | $k = 0; |
398 | } elseif( $k == 1 && !isnosep( $d{0} ) ) { |
399 | $base .= substr( $d, 1 ); |
400 | } |
401 | $k++; |
402 | } |
403 | if( $base <> '' ) |
404 | $ret = "<base href=\"$base\">" . $ret; |
405 | } |
406 | } else if (ereg('"([^"]*)"', $topline, $regs)) { |
407 | $ret = $regs[1]; |
408 | } else { |
a019eeb8 |
409 | global $where, $what, $mailbox, $passed_id, $startMessage; |
410 | $par = "mailbox=".urlencode($mailbox)."&passed_id=$passed_id"; |
411 | if (isset($where) && isset($what)) { |
412 | $par .= "&where=".urlencode($where)."&what=".urlencode($what); |
413 | } else { |
414 | $par .= "&startMessage=$startMessage&show_more=0"; |
a3daaaf3 |
415 | } |
a019eeb8 |
416 | $par .= '&response='.urlencode($response).'&message='.urlencode($message). |
417 | '&topline='.urlencode($topline); |
418 | |
419 | echo '<b><font color=$color[2]>Body retrieval error. The reason for this is most probably that<BR> ' . |
420 | 'the message is malformed. Please help us making future versions<BR> ' . |
421 | "better by submitting this message to the developers knowledgebase!<BR>\n" . |
422 | "<A HREF=\"../src/retrievalerror.php?$par\">Submit message</A><BR>" . |
423 | |
424 | "<tt>Response: $response<BR>" . |
425 | "Message: $message<BR>" . |
426 | "FETCH line: $topline<BR></tt></font></b>"; |
427 | |
428 | fputs ($imap_stream, "$sid FETCH $passed_id BODY[]\r\n"); |
429 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
430 | array_shift($data); |
431 | $wholemessage = implode('', $data); |
432 | |
433 | $ret = "---------------\n$wholemessage"; |
434 | |
a3daaaf3 |
435 | } |
436 | return( $ret ); |
437 | } |
d4467150 |
438 | |
beb9e459 |
439 | function mime_print_body_lines ($imap_stream, $id, $ent_id, $encoding) { |
440 | // do a bit of error correction. If we couldn't find the entity id, just guess |
441 | // that it is the first one. That is usually the case anyway. |
442 | if (!$ent_id) $ent_id = 1; |
b74ba498 |
443 | $sid = sqimap_session_id(); |
1d1e02f4 |
444 | // Don't kill the connection if the browser is over a dialup |
445 | // and it would take over 30 seconds to download it. |
446 | set_time_limit(0); |
447 | |
b74ba498 |
448 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n"); |
449 | $cnt = 0; |
450 | $continue = true; |
451 | $read = fgets ($imap_stream,4096); |
452 | // This could be bad -- if the section has sqimap_session_id() . ' OK' |
453 | // or similar, it will kill the download. |
454 | while (!ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) { |
455 | if (trim($read) == ')==') { |
456 | $read1 = $read; |
457 | $read = fgets ($imap_stream,4096); |
458 | if (ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) { |
459 | return; |
460 | } else { |
461 | echo decodeBody($read1, $encoding) . |
462 | decodeBody($read, $encoding); |
463 | } |
464 | } else if ($cnt) { |
465 | echo decodeBody($read, $encoding); |
466 | } |
467 | $read = fgets ($imap_stream,4096); |
468 | $cnt++; |
469 | } |
beb9e459 |
470 | } |
471 | |
8beafbbc |
472 | /* -[ END MIME DECODING ]----------------------------------------------------------- */ |
d4467150 |
473 | |
aceb0d5c |
474 | |
d4467150 |
475 | |
8beafbbc |
476 | /** This is the first function called. It decides if this is a multipart |
477 | message or if it should be handled as a single entity |
4809f489 |
478 | **/ |
090595e1 |
479 | function decodeMime ($imap_stream, &$header) { |
8beafbbc |
480 | global $username, $key, $imapServerAddress, $imapPort; |
8d8ab69a |
481 | return mime_structure ($imap_stream, $header); |
8beafbbc |
482 | } |
b1dadc61 |
483 | |
cbcf32f6 |
484 | // This is here for debugging purposese. It will print out a list |
485 | // of all the entity IDs that are in the $message object. |
b74ba498 |
486 | /* |
ea48eb25 |
487 | function listEntities ($message) { |
488 | if ($message) { |
cbcf32f6 |
489 | if ($message->header->entity_id) |
b74ba498 |
490 | echo "<tt>" . $message->header->entity_id . ' : ' . $message->header->type0 . '/' . $message->header->type1 . '<br>'; |
cbcf32f6 |
491 | for ($i = 0; $message->entities[$i]; $i++) { |
492 | $msg = listEntities($message->entities[$i], $ent_id); |
493 | if ($msg) |
494 | return $msg; |
495 | } |
ea48eb25 |
496 | } |
497 | } |
b74ba498 |
498 | */ |
ea48eb25 |
499 | |
cbcf32f6 |
500 | // returns a $message object for a particular entity id |
8beafbbc |
501 | function getEntity ($message, $ent_id) { |
502 | if ($message) { |
ea48eb25 |
503 | if ($message->header->entity_id == $ent_id && strlen($ent_id) == strlen($message->header->entity_id)) { |
8beafbbc |
504 | return $message; |
b1dadc61 |
505 | } else { |
cd928157 |
506 | for ($i = 0; isset($message->entities[$i]); $i++) { |
8beafbbc |
507 | $msg = getEntity ($message->entities[$i], $ent_id); |
508 | if ($msg) |
509 | return $msg; |
b1dadc61 |
510 | } |
b74ba498 |
511 | } |
8beafbbc |
512 | } |
513 | } |
514 | |
a3daaaf3 |
515 | // figures out what entity to display and returns the $message object |
516 | // for that entity. |
517 | function findDisplayEntity ($message, $textOnly = 1) { |
518 | global $show_html_default; |
519 | |
520 | $entity = 0; |
521 | |
522 | if ($message) { |
523 | if ( $message->header->type0 == 'multipart' && |
524 | ( $message->header->type1 == 'alternative' || |
525 | $message->header->type1 == 'related' ) && |
526 | $show_html_default && ! $textOnly ) { |
527 | $entity = findDisplayEntityHTML($message); |
528 | } |
529 | |
530 | // Show text/plain or text/html -- the first one we find. |
531 | if ( $entity == 0 && |
532 | $message->header->type0 == 'text' && |
533 | ( $message->header->type1 == 'plain' || |
534 | $message->header->type1 == 'html' ) && |
535 | isset($message->header->entity_id) ) { |
536 | $entity = $message->header->entity_id; |
537 | } |
538 | |
539 | $i = 0; |
540 | while ($entity == 0 && isset($message->entities[$i]) ) { |
541 | $entity = findDisplayEntity($message->entities[$i], $textOnly); |
542 | $i++; |
543 | } |
544 | } |
545 | |
546 | return( $entity ); |
547 | } |
b74ba498 |
548 | |
c3a80dac |
549 | // Shows the HTML version |
550 | function findDisplayEntityHTML ($message) { |
b74ba498 |
551 | if ($message->header->type0 == 'text' && |
c3a80dac |
552 | $message->header->type1 == 'html' && |
b74ba498 |
553 | isset($message->header->entity_id)) |
554 | return $message->header->entity_id; |
c3a80dac |
555 | for ($i = 0; isset($message->entities[$i]); $i ++) { |
556 | $entity = findDisplayEntityHTML($message->entities[$i]); |
b74ba498 |
557 | if ($entity != 0) |
558 | return $entity; |
c3a80dac |
559 | } |
e2ab93e5 |
560 | return 0; |
b1dadc61 |
561 | } |
8405ee35 |
562 | |
d068c0ec |
563 | /** This returns a parsed string called $body. That string can then |
564 | be displayed as the actual message in the HTML. It contains |
565 | everything needed, including HTML Tags, Attachments at the |
566 | bottom, etc. |
4809f489 |
567 | **/ |
8d8ab69a |
568 | function formatBody($imap_stream, $message, $color, $wrap_at) { |
cbcf32f6 |
569 | // this if statement checks for the entity to show as the |
570 | // primary message. To add more of them, just put them in the |
571 | // order that is their priority. |
5f1c529a |
572 | global $startMessage, $username, $key, $imapServerAddress, $imapPort, |
573 | $show_html_default; |
8beafbbc |
574 | |
8beafbbc |
575 | $id = $message->header->id; |
576 | $urlmailbox = urlencode($message->header->mailbox); |
577 | |
e4a256af |
578 | // Get the right entity and redefine message to be this entity |
3ae6e629 |
579 | // Pass the 0 to mean that we want the 'best' viewable one |
580 | $ent_num = findDisplayEntity ($message, 0); |
2c252f5a |
581 | $body_message = getEntity($message, $ent_num); |
b74ba498 |
582 | if (($body_message->header->type0 == 'text') || |
583 | ($body_message->header->type0 == 'rfc822')) { |
584 | |
d51894be |
585 | $body = mime_fetch_body ($imap_stream, $id, $ent_num); |
d4ff4d67 |
586 | $body = decodeBody($body, $body_message->header->encoding); |
b74ba498 |
587 | $hookResults = do_hook("message_body", $body); |
588 | $body = $hookResults[1]; |
b36d403c |
589 | |
d4ff4d67 |
590 | // If there are other types that shouldn't be formatted, add |
b74ba498 |
591 | // them here |
a3daaaf3 |
592 | if ($body_message->header->type1 == 'html') { |
593 | if( $show_html_default <> 1 ) { |
594 | $body = strip_tags( $body ); |
595 | translateText($body, $wrap_at, $body_message->header->charset); |
596 | } else { |
597 | $body = MagicHTML( $body, $id ); |
598 | } |
599 | } else { |
9eea179c |
600 | translateText($body, $wrap_at, $body_message->header->charset); |
b74ba498 |
601 | } |
602 | |
7b9592dc |
603 | $body .= "<SMALL><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$ent_num&mailbox=$urlmailbox&showHeaders=1\">". _("Download this as a file") ."</A></CENTER><BR></SMALL>"; |
b74ba498 |
604 | |
d4ff4d67 |
605 | /** Display the ATTACHMENTS: message if there's more than one part **/ |
dd389be5 |
606 | $body .= "</TD></TR></TABLE>"; |
719534f2 |
607 | if (isset($message->entities[0])) { |
d4ff4d67 |
608 | $body .= formatAttachments ($message, $ent_num, $message->header->mailbox, $id); |
d4ff4d67 |
609 | } |
b74ba498 |
610 | $body .= "</TD></TR></TABLE>"; |
d4ff4d67 |
611 | } else { |
cba164a0 |
612 | $body = formatAttachments ($message, -1, $message->header->mailbox, $id); |
8405ee35 |
613 | } |
b74ba498 |
614 | return( $body ); |
d4467150 |
615 | } |
616 | |
8beafbbc |
617 | // A recursive function that returns a list of attachments with links |
618 | // to where to download these attachments |
619 | function formatAttachments ($message, $ent_id, $mailbox, $id) { |
f4991a86 |
620 | global $where, $what; |
dd389be5 |
621 | global $startMessage, $color; |
719534f2 |
622 | static $ShownHTML = 0; |
b74ba498 |
623 | |
624 | $body = ""; |
625 | if ($ShownHTML == 0) { |
dd389be5 |
626 | $ShownHTML = 1; |
b74ba498 |
627 | |
628 | $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=2 BORDER=0 BGCOLOR=\"$color[0]\"><TR>\n" . |
629 | "<TH ALIGN=\"left\" BGCOLOR=\"$color[9]\"><B>\n" . |
630 | _("Attachments") . ':' . |
631 | "</B></TH></TR><TR><TD>\n" . |
632 | "<TABLE CELLSPACING=0 CELLPADDING=1 BORDER=0>\n" . |
633 | formatAttachments ($message, $ent_id, $mailbox, $id) . |
634 | "</TABLE></TD></TR></TABLE>"; |
635 | |
636 | return( $body ); |
dd389be5 |
637 | } |
b74ba498 |
638 | |
8beafbbc |
639 | if ($message) { |
640 | if (!$message->entities) { |
641 | $type0 = strtolower($message->header->type0); |
642 | $type1 = strtolower($message->header->type1); |
66e1a00e |
643 | $name = decodeHeader($message->header->name); |
b74ba498 |
644 | |
8beafbbc |
645 | if ($message->header->entity_id != $ent_id) { |
888c82e2 |
646 | $filename = decodeHeader($message->header->filename); |
b74ba498 |
647 | if (trim($filename) == '') { |
648 | if (trim($name) == '') { |
649 | if( trim( $message->header->id ) == '' ) |
650 | $display_filename = 'untitled-[' . $message->header->entity_id . ']' ; |
651 | else |
652 | $display_filename = 'cid: ' . $message->header->id; |
653 | // $display_filename = 'untitled-[' . $message->header->entity_id . ']' ; |
654 | } else { |
655 | $display_filename = $name; |
656 | $filename = $name; |
657 | } |
8beafbbc |
658 | } else { |
659 | $display_filename = $filename; |
660 | } |
b74ba498 |
661 | |
8beafbbc |
662 | $urlMailbox = urlencode($mailbox); |
663 | $ent = urlencode($message->header->entity_id); |
b74ba498 |
664 | |
665 | $DefaultLink = |
bc104ef3 |
666 | "../src/download.php?startMessage=$startMessage&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent"; |
dd389be5 |
667 | if ($where && $what) |
668 | $DefaultLink .= '&where=' . urlencode($where) . '&what=' . urlencode($what); |
701c9c6b |
669 | $Links['download link']['text'] = _("download"); |
b74ba498 |
670 | $Links['download link']['href'] = |
bc104ef3 |
671 | "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent"; |
dd389be5 |
672 | $ImageURL = ''; |
b74ba498 |
673 | |
dd389be5 |
674 | $HookResults = do_hook("attachment $type0/$type1", $Links, |
b74ba498 |
675 | $startMessage, $id, $urlMailbox, $ent, $DefaultLink, |
ef30bf50 |
676 | $display_filename, $where, $what); |
dd389be5 |
677 | |
678 | $Links = $HookResults[1]; |
679 | $DefaultLink = $HookResults[6]; |
680 | |
b74ba498 |
681 | $body .= '<TR><TD> </TD><TD>' . |
682 | "<A HREF=\"$DefaultLink\">$display_filename</A> </TD>" . |
683 | '<TD><SMALL><b>' . show_readable_size($message->header->size) . |
684 | '</b> </small></TD>' . |
685 | "<TD><SMALL>[ $type0/$type1 ] </SMALL></TD>" . |
686 | '<TD><SMALL>'; |
ea48eb25 |
687 | if ($message->header->description) |
dd389be5 |
688 | $body .= '<b>' . htmlspecialchars($message->header->description) . '</b>'; |
fde32e3f |
689 | $body .= '</SMALL></TD><TD><SMALL> '; |
b74ba498 |
690 | |
691 | |
dd389be5 |
692 | $SkipSpaces = 1; |
b74ba498 |
693 | foreach ($Links as $Val) { |
694 | if ($SkipSpaces) { |
dd389be5 |
695 | $SkipSpaces = 0; |
b74ba498 |
696 | } else { |
fde32e3f |
697 | $body .= ' | '; |
dd389be5 |
698 | } |
fde32e3f |
699 | $body .= '<a href="' . $Val['href'] . '">' . $Val['text'] . '</a>'; |
dd389be5 |
700 | } |
b74ba498 |
701 | |
dd389be5 |
702 | unset($Links); |
b74ba498 |
703 | |
fde32e3f |
704 | $body .= "</SMALL></TD></TR>\n"; |
8beafbbc |
705 | } |
8beafbbc |
706 | } else { |
707 | for ($i = 0; $i < count($message->entities); $i++) { |
708 | $body .= formatAttachments ($message->entities[$i], $ent_id, $mailbox, $id); |
709 | } |
8beafbbc |
710 | } |
b74ba498 |
711 | return( $body ); |
8beafbbc |
712 | } |
713 | } |
4809f489 |
714 | |
715 | |
716 | /** this function decodes the body depending on the encoding type. **/ |
d4467150 |
717 | function decodeBody($body, $encoding) { |
623332f3 |
718 | $body = str_replace("\r\n", "\n", $body); |
d4467150 |
719 | $encoding = strtolower($encoding); |
7831268e |
720 | |
358f007e |
721 | global $show_html_default; |
722 | |
b74ba498 |
723 | if ($encoding == 'quoted-printable') { |
ef3f274f |
724 | $body = quoted_printable_decode($body); |
b74ba498 |
725 | |
726 | |
727 | /* |
728 | Following code has been comented as I see no reason for it. |
729 | If there is any please tell me a mingo@rotedic.com |
730 | |
ef3f274f |
731 | while (ereg("=\n", $body)) |
732 | $body = ereg_replace ("=\n", "", $body); |
b74ba498 |
733 | */ |
734 | } else if ($encoding == 'base64') { |
ef3f274f |
735 | $body = base64_decode($body); |
d4467150 |
736 | } |
b74ba498 |
737 | |
a47b5200 |
738 | // All other encodings are returned raw. |
ef3f274f |
739 | return $body; |
aceb0d5c |
740 | } |
a4c2cd49 |
741 | |
742 | |
b74ba498 |
743 | // This functions decode strings that is encoded according to |
a4c2cd49 |
744 | // RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text). |
2e434774 |
745 | function decodeHeader ($string) { |
b74ba498 |
746 | if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', |
a4c2cd49 |
747 | $string, $res)) { |
1fd97780 |
748 | if (ucfirst($res[2]) == "B") { |
749 | $replace = base64_decode($res[3]); |
a4c2cd49 |
750 | } else { |
1fd97780 |
751 | $replace = ereg_replace("_", " ", $res[3]); |
b74ba498 |
752 | // Convert lowercase Quoted Printable to uppercase for |
753 | // quoted_printable_decode to understand it. |
754 | while (ereg("(=(([0-9][abcdef])|([abcdef][0-9])|([abcdef][abcdef])))", $replace, $res)) { |
755 | $replace = str_replace($res[1], strtoupper($res[1]), $replace); |
756 | } |
a4c2cd49 |
757 | $replace = quoted_printable_decode($replace); |
758 | } |
759 | |
1fd97780 |
760 | $replace = charset_decode ($res[1], $replace); |
a4c2cd49 |
761 | |
9be55c4b |
762 | // Remove the name of the character set. |
763 | $string = eregi_replace ('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', |
a4c2cd49 |
764 | $replace, $string); |
9be55c4b |
765 | |
2e434774 |
766 | // In case there should be more encoding in the string: recurse |
767 | return (decodeHeader($string)); |
b74ba498 |
768 | } else |
a4c2cd49 |
769 | return ($string); |
770 | } |
771 | |
c3084273 |
772 | // Encode a string according to RFC 1522 for use in headers if it |
bb60fa3f |
773 | // contains 8-bit characters or anything that looks like it should |
774 | // be encoded. |
c3084273 |
775 | function encodeHeader ($string) { |
776 | global $default_charset; |
b74ba498 |
777 | |
f7b3ba37 |
778 | // Encode only if the string contains 8-bit characters or =? |
779 | $j = strlen( $string ); |
780 | $l = FALSE; // Must be encoded ? |
781 | $ret = ''; |
782 | for( $i=0; $i < $j; ++$i) { |
783 | switch( $string{$i} ) { |
784 | case '=': |
b74ba498 |
785 | $ret .= '=3D'; |
786 | break; |
787 | case '?': |
788 | $l = TRUE; |
789 | $ret .= '=3F'; |
790 | break; |
791 | case '_': |
792 | $ret .= '=5F'; |
793 | break; |
794 | case ' ': |
795 | $ret .= '_'; |
796 | break; |
797 | default: |
798 | $k = ord( $string{$i} ); |
799 | if( $k > 126 ) { |
800 | $ret .= sprintf("=%02X", $k); |
801 | $l = TRUE; |
802 | } else |
803 | $ret .= $string{$i}; |
f7b3ba37 |
804 | } |
805 | } |
b74ba498 |
806 | |
f7b3ba37 |
807 | if( $l ) |
808 | $string = "=?$default_charset?Q?$ret?="; |
b74ba498 |
809 | |
f7b3ba37 |
810 | return( $string ); |
811 | } |
c3084273 |
812 | |
a3daaaf3 |
813 | /* |
814 | Strips dangerous tags from html messages. |
815 | */ |
816 | |
817 | function MagicHTML( $body, $id ) { |
818 | |
819 | global $message, $PHP_SELF, $HTTP_SERVER_VARS; |
820 | |
821 | $j = strlen( $body ); // Legnth of the HTML |
822 | $ret = ''; // Returned string |
823 | $bgcolor = '#ffffff'; // Background style color (defaults to white) |
824 | $leftmargin = ''; // Left margin style |
825 | $title = ''; // HTML title if any |
826 | |
827 | $i = 0; |
828 | while( $i < $j ) { |
829 | if( $body{$i} == '<' ) { |
830 | $tag = $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}; |
831 | switch( strtoupper( $tag ) ) { |
832 | // Strips the entire tag and contents |
833 | case 'APPL': |
834 | case 'EMBB': |
835 | case 'FRAM': |
836 | case 'SCRI': |
837 | case 'OBJE': |
838 | $etg = '/' . $tag; |
839 | while( $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}.$body{$i+5} <> $etg && |
840 | $i < $j ) $i++; |
841 | while( $i < $j && $body{++$i} <> '>' ); |
842 | // $ret .= "<!-- $tag removed -->"; |
843 | break; |
844 | // Substitute Title |
845 | case 'TITL': |
846 | $i += 5; |
847 | while( $body{$i} <> '>' && // </title> |
848 | $i < $j ) |
849 | $i++; |
850 | $i++; |
851 | $title = ''; |
852 | while( $body{$i} <> '<' && // </title> |
853 | $i < $j ) { |
854 | $title .= $body{$i}; |
855 | $i++; |
856 | } |
857 | $i += 7; |
858 | break; |
859 | // Destroy these tags |
860 | case 'HTML': |
861 | case 'HEAD': |
862 | case '/HTM': |
863 | case '/HEA': |
864 | case '!DOC': |
865 | case 'META': |
866 | case 'DIV ': |
867 | case '/DIV': |
868 | case '!-- ': |
869 | $i += 4; |
870 | while( $body{$i} <> '>' && |
871 | $i < $j ) |
872 | $i++; |
873 | // $i++; |
874 | break; |
875 | case 'STYL': |
876 | $i += 5; |
877 | while( $body{$i} <> '>' && // </title> |
878 | $i < $j ) |
879 | $i++; |
880 | $i++; |
881 | // We parse the style to look for interesting stuff |
882 | $styleblk = ''; |
883 | while( $body{$i} <> '>' && |
884 | $i < $j ) { |
885 | // First we get the name of the style |
886 | $style = ''; |
887 | while( $body{$i} <> '>' && |
888 | $body{$i} <> '<' && |
889 | $body{$i} <> '{' && |
890 | $i < $j ) { |
891 | if( isnoSep( $body{$i} ) ) |
892 | $style .= $body{$i}; |
893 | $i++; |
894 | } |
5487a8d0 |
895 | stripComments( $i, $j, $body ); |
a3daaaf3 |
896 | $style = strtoupper( trim( $style ) ); |
897 | if( $style == 'BODY' ) { |
898 | // Next we look into the definitions of the body style |
899 | while( $body{$i} <> '>' && |
900 | $body{$i} <> '}' && |
901 | $i < $j ) { |
902 | // We look for the background color if any. |
903 | if( substr( $body, $i, 17 ) == 'BACKGROUND-COLOR:' ) { |
904 | $i += 17; |
905 | $bgcolor = getStyleData( $i, $j, $body ); |
906 | } elseif ( substr( $body, $i, 12 ) == 'MARGIN-LEFT:' ) { |
907 | $i += 12; |
908 | $leftmargin = getStyleData( $i, $j, $body ); |
909 | } |
910 | $i++; |
911 | } |
912 | } else { |
913 | // Other style are mantained |
914 | $styleblk .= "$style "; |
915 | while( $body{$i} <> '>' && |
916 | $body{$i} <> '<' && |
917 | $body{$i} <> '}' && |
918 | $i < $j ) { |
919 | $styleblk .= $body{$i}; |
920 | $i++; |
921 | } |
922 | $styleblk .= $body{$i}; |
923 | } |
5487a8d0 |
924 | stripComments( $i, $j, $body ); |
a3daaaf3 |
925 | if( $body{$i} <> '>' ) |
926 | $i++; |
927 | } |
928 | if( $styleblk <> '' ) |
929 | $ret .= "<style>$styleblk"; |
930 | break; |
931 | case 'BODY': |
932 | if( $title <> '' ) |
933 | $ret .= '<b>' . _("Title:") . " </b>$title<br>\n"; |
934 | $ret .= "<TABLE"; |
935 | $i += 5; |
4aaea201 |
936 | if (! isset($base)) |
937 | $base = ''; |
a3daaaf3 |
938 | $ret .= stripEvent( $i, $j, $body, $id, $base ); |
939 | //if( $bgcolor <> '' ) |
940 | $ret .= " bgcolor=$bgcolor"; |
941 | $ret .= ' width=100%><tr>'; |
942 | if( $leftmargin <> '' ) |
943 | $ret .= "<td width=$leftmargin> </td>"; |
944 | $ret .= '<td>'; |
945 | break; |
946 | case 'BASE': |
947 | $i += 5; |
948 | $base = ''; |
949 | while( !isNoSep( $body{$i} ) && |
950 | $i < $j ) |
951 | $i++; |
952 | if( strcasecmp( substr( $base, 0, 4 ), 'href' ) ) { |
953 | $i += 5; |
954 | while( !isNoSep( $body{$i} ) && |
955 | $i < $j ) |
956 | $i++; |
957 | while( $body{$i} <> '>' && |
958 | $i < $j ) { |
959 | if( $body{$i} <> '"' ) |
960 | $base .= $body{$i}; |
961 | $i++; |
962 | } |
963 | // Debuging $ret .= "<!-- base == $base -->"; |
964 | if( strcasecmp( substr( $base, 0, 4 ), 'file' ) <> 0 ) |
965 | $ret .= "\n<BASE HREF=\"$base\">\n"; |
966 | } |
967 | break; |
968 | case '/BOD': |
969 | $ret .= '</td></tr></TABLE>'; |
970 | $i += 6; |
971 | break; |
972 | default: |
973 | // Following tags can contain some event handler, lets search it |
974 | stripComments( $i, $j, $body ); |
4aaea201 |
975 | if (! isset($base)) |
976 | $base = ''; |
a3daaaf3 |
977 | $ret .= stripEvent( $i, $j, $body, $id, $base ) . '>'; |
978 | // $ret .= "<!-- $tag detected -->"; |
979 | } |
980 | } else { |
981 | $ret .= $body{$i}; |
982 | } |
983 | $i++; |
984 | } |
985 | |
986 | return( "\n\n<!-- HTML Output ahead -->\n" . |
987 | $ret . |
988 | "\n<!-- END of HTML Output --><base href=\"". |
989 | $HTTP_SERVER_VARS["SERVER_NAME"] . substr( $PHP_SELF, 0, strlen( $PHP_SELF ) - 13 ) . |
990 | "\">\n\n" ); |
991 | } |
992 | |
993 | function isNoSep( $char ) { |
994 | |
995 | switch( $char ) { |
996 | case ' ': |
997 | case "\n": |
998 | case "\t": |
999 | case "\r": |
1000 | case '>': |
1001 | case '"': |
1002 | return( FALSE ); |
1003 | break; |
1004 | default: |
1005 | return( TRUE ); |
1006 | } |
1007 | |
1008 | } |
1009 | |
1010 | /* |
1011 | The following function is usefull to remove extra data that can cause |
1012 | html not to display properly. Especialy with MS stuff. |
1013 | */ |
1014 | |
1015 | function stripComments( &$i, $j, &$body ) { |
1016 | |
1017 | while( $body{$i}.$body{$i+1}.$body{$i+2}.$body{$i+3} == '<!--' && |
1018 | $i < $j ) { |
1019 | $i += 5; |
1020 | while( $body{$i-2}.$body{$i-1}.$body{$i} <> '-->' && |
1021 | $i < $j ) |
1022 | $i++; |
1023 | $i++; |
1024 | } |
1025 | |
1026 | return; |
1027 | |
1028 | } |
1029 | |
1030 | /* Gets the style data of a specific style */ |
1031 | |
1032 | function getStyleData( &$i, $j, &$body ) { |
1033 | |
1034 | // We skip spaces |
1035 | while( $body{$i} <> '>' && !isNoSep( $body{$i} ) && |
1036 | $i < $j ) { |
1037 | $i++; |
1038 | } |
1039 | // And get the color |
1040 | $ret = ''; |
1041 | while( isNoSep( $body{$i} ) && |
1042 | $i < $j ) { |
1043 | $ret .= $body{$i}; |
1044 | $i++; |
1045 | } |
1046 | |
1047 | return( $ret ); |
1048 | } |
1049 | |
1050 | /* |
1051 | Private function for strip_dangerous_tag. Look for event based coded and "remove" it |
1052 | change on with no (onload -> noload) |
1053 | */ |
1054 | |
1055 | function stripEvent( &$i, $j, &$body, $id, $base ) { |
1056 | |
1057 | global $message; |
1058 | |
1059 | $ret = ''; |
1060 | |
1061 | while( $body{$i} <> '>' && |
1062 | $i < $j ) { |
1063 | $etg = strtolower($body{$i}.$body{$i+1}.$body{$i+2}); |
1064 | switch( $etg ) { |
1065 | case '../': |
1066 | // Retrolinks are not allowed without a base because they mess with SM security |
1067 | if( $base == '' ) { |
1068 | $i += 2; |
1069 | } else { |
1070 | $ret .= '.'; |
1071 | } |
1072 | break; |
1073 | case 'cid': |
1074 | // Internal link |
1075 | $k = $i-1; |
1076 | if( $body{$i+3} == ':') { |
1077 | $i +=4; |
1078 | $name = ''; |
1079 | while( isNoSep( $body{$i} ) && |
1080 | $i < $j ) |
1081 | $name .= $body{$i++}; |
1082 | if( $name <> '' ) { |
1083 | $ret .= "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=" . |
1084 | urlencode( $message->header->mailbox ) . |
1085 | "&passed_ent_id=" . find_ent_id( $name, $message ); |
1086 | if( $body{$k} == '"' ) |
1087 | $ret .= '" '; |
1088 | else |
1089 | $ret .= ' '; |
1090 | } |
1091 | if( $body{$i} == '>' ) |
1092 | $i -= 1; |
1093 | } |
1094 | break; |
1095 | case ' on': |
1096 | case "\non": |
1097 | case "\ron": |
1098 | case "\ton": |
1099 | $ret .= ' no'; |
1100 | $i += 2; |
1101 | break; |
1102 | case 'pt:': |
1103 | if( strcasecmp( $body{$i-4}.$body{$i-3}.$body{$i-2}.$body{$i-1}.$body{$i}.$body{$i+1}.$body{$i+2}, 'script:') == 0 ) { |
1104 | $ret .= '_no/'; |
1105 | } else { |
1106 | $ret .= $etg; |
1107 | } |
1108 | $i += 2; |
1109 | break; |
1110 | default: |
1111 | $ret .= $body{$i}; |
1112 | } |
1113 | $i++; |
1114 | } |
1115 | return( $ret ); |
1116 | } |
1117 | |
1118 | |
1119 | /* This function trys to locate the entity_id of a specific mime element */ |
1120 | |
1121 | function find_ent_id( $id, $message ) { |
1122 | |
1123 | $ret = ''; |
1124 | for ($i=0; $ret == '' && $i < count($message->entities); $i++) { |
1125 | |
1126 | if( $message->entities[$i]->header->entity_id == '' ) { |
1127 | $ret = find_ent_id( $id, $message->entities[$i] ); |
1128 | } else { |
1129 | if( strcasecmp( $message->entities[$i]->header->id, $id ) == 0 ) |
1130 | $ret = $message->entities[$i]->header->entity_id; |
1131 | } |
1132 | |
1133 | } |
1134 | |
1135 | return( $ret ); |
1136 | |
1137 | } |
5487a8d0 |
1138 | ?> |