| 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 | |
| 0fc2aca0 |
10 | require_once('../functions/imap.php'); |
| 7baf86a9 |
11 | require_once('../functions/attachment_common.php'); |
| 8beafbbc |
12 | |
| cbcf32f6 |
13 | /** Setting up the objects that have the structure for the message **/ |
| 8beafbbc |
14 | |
| 15 | class msg_header { |
| 16 | /** msg_header contains generic variables for values that **/ |
| 17 | /** could be in a header. **/ |
| b74ba498 |
18 | |
| 245a6892 |
19 | var $type0 = '', $type1 = '', $boundary = '', $charset = ''; |
| 40023540 |
20 | var $encoding = '', $size = 0, $to = array(), $from = '', $date = ''; |
| 21 | var $cc = array(), $bcc = array(), $reply_to = '', $subject = ''; |
| 61423189 |
22 | var $id = 0, $mailbox = '', $description = '', $filename = ''; |
| 66e1a00e |
23 | var $entity_id = 0, $message_id = 0, $name = ''; |
| 020abcf3 |
24 | // var $priority = ""; |
| 8beafbbc |
25 | } |
| b74ba498 |
26 | |
| 8beafbbc |
27 | class message { |
| 28 | /** message is the object that contains messages. It is a recursive |
| b74ba498 |
29 | object in that through the $entities variable, it can contain |
| 8beafbbc |
30 | more objects of type message. See documentation in mime.txt for |
| 31 | a better description of how this works. |
| b74ba498 |
32 | **/ |
| 61423189 |
33 | var $header = ''; |
| 2df6ca53 |
34 | var $entities = array(); |
| b74ba498 |
35 | |
| 8beafbbc |
36 | function addEntity ($msg) { |
| 61423189 |
37 | $this->entities[] = $msg; |
| 8beafbbc |
38 | } |
| 39 | } |
| 1fd97780 |
40 | |
| 8beafbbc |
41 | /* --------------------------------------------------------------------------------- */ |
| 42 | /* MIME DECODING */ |
| 43 | /* --------------------------------------------------------------------------------- */ |
| b74ba498 |
44 | |
| cbcf32f6 |
45 | // This function gets the structure of a message and stores it in the "message" class. |
| 46 | // It will return this object for use with all relevant header information and |
| 47 | // fully parsed into the standard "message" object format. |
| 8beafbbc |
48 | function mime_structure ($imap_stream, $header) { |
| b74ba498 |
49 | |
| 50 | sqimap_messages_flag ($imap_stream, $header->id, $header->id, 'Seen'); |
| 51 | $ssid = sqimap_session_id(); |
| 52 | $lsid = strlen( $ssid ); |
| 8beafbbc |
53 | $id = $header->id; |
| b74ba498 |
54 | fputs ($imap_stream, "$ssid FETCH $id BODYSTRUCTURE\r\n"); |
| 245a6892 |
55 | // |
| 56 | // This should use sqimap_read_data instead of reading it itself |
| 57 | // |
| e79bed1b |
58 | $read = fgets ($imap_stream, 10000); |
| b74ba498 |
59 | $bodystructure = ''; |
| 60 | while( substr($read, 0, $lsid) <> $ssid && |
| 61 | !feof( $imap_stream ) ) { |
| 3e1266ef |
62 | $bodystructure .= $read; |
| 254925d1 |
63 | $read = fgets ($imap_stream, 10000); |
| 254925d1 |
64 | } |
| 22ef7536 |
65 | $read = $bodystructure; |
| 8beafbbc |
66 | |
| 8beafbbc |
67 | // isolate the body structure and remove beginning and end parenthesis |
| b74ba498 |
68 | $read = trim(substr ($read, strpos(strtolower($read), 'bodystructure') + 13)); |
| ea48eb25 |
69 | $read = trim(substr ($read, 0, -1)); |
| 70 | $end = mime_match_parenthesis(0, $read); |
| 71 | while ($end == strlen($read)-1) { |
| 72 | $read = trim(substr ($read, 0, -1)); |
| 73 | $read = trim(substr ($read, 1)); |
| 74 | $end = mime_match_parenthesis(0, $read); |
| 75 | } |
| 8beafbbc |
76 | |
| 85daa3ad |
77 | $msg = mime_parse_structure ($read, 0); |
| 8beafbbc |
78 | $msg->header = $header; |
| 79 | return $msg; |
| 80 | } |
| 81 | |
| cbcf32f6 |
82 | // this starts the parsing of a particular structure. It is called recursively, |
| 83 | // so it can be passed different structures. It returns an object of type |
| 84 | // $message. |
| 85 | // First, it checks to see if it is a multipart message. If it is, then it |
| 86 | // handles that as it sees is necessary. If it is just a regular entity, |
| 87 | // then it parses it and adds the necessary header information (by calling out |
| 88 | // to mime_get_elements() |
| 8beafbbc |
89 | function mime_parse_structure ($structure, $ent_id) { |
| b74ba498 |
90 | |
| 8beafbbc |
91 | $msg = new message(); |
| b74ba498 |
92 | if ($structure{0} == '(') { |
| 8beafbbc |
93 | $ent_id = mime_new_element_level($ent_id); |
| 94 | $start = $end = -1; |
| 95 | do { |
| 8beafbbc |
96 | $start = $end+1; |
| 97 | $end = mime_match_parenthesis ($start, $structure); |
| b74ba498 |
98 | |
| 8beafbbc |
99 | $element = substr($structure, $start+1, ($end - $start)-1); |
| ea48eb25 |
100 | $ent_id = mime_increment_id ($ent_id); |
| 8beafbbc |
101 | $newmsg = mime_parse_structure ($element, $ent_id); |
| 102 | $msg->addEntity ($newmsg); |
| b74ba498 |
103 | } while ($structure{$end+1} == '('); |
| 8beafbbc |
104 | } else { |
| 105 | // parse the elements |
| 090595e1 |
106 | $msg = mime_get_element ($structure, $msg, $ent_id); |
| 8beafbbc |
107 | } |
| bc64f471 |
108 | return $msg; |
| 8beafbbc |
109 | } |
| 110 | |
| 111 | // Increments the element ID. An element id can look like any of |
| 112 | // the following: 1, 1.2, 4.3.2.4.1, etc. This function increments |
| 113 | // the last number of the element id, changing 1.2 to 1.3. |
| 114 | function mime_increment_id ($id) { |
| b74ba498 |
115 | |
| 8beafbbc |
116 | if (strpos($id, ".")) { |
| 117 | $first = substr($id, 0, strrpos($id, ".")); |
| ea48eb25 |
118 | $last = substr($id, strrpos($id, ".")+1); |
| 8beafbbc |
119 | $last++; |
| ea48eb25 |
120 | $new = $first . "." .$last; |
| 8beafbbc |
121 | } else { |
| 122 | $new = $id + 1; |
| 123 | } |
| b74ba498 |
124 | |
| 8beafbbc |
125 | return $new; |
| 126 | } |
| 127 | |
| 128 | // See comment for mime_increment_id(). |
| 129 | // This adds another level on to the entity_id changing 1.3 to 1.3.0 |
| b74ba498 |
130 | // NOTE: 1.3.0 is not a valid element ID. It MUST be incremented |
| 8beafbbc |
131 | // before it can be used. I left it this way so as not to have |
| 132 | // to make a special case if it is the first entity_id. It |
| 133 | // always increments it, and that works fine. |
| 134 | function mime_new_element_level ($id) { |
| ea48eb25 |
135 | |
| b74ba498 |
136 | if (!$id) { |
| 137 | $id = 0; |
| 138 | } else { |
| 139 | $id = $id . '.0'; |
| 140 | } |
| 141 | |
| 142 | return( $id ); |
| 8beafbbc |
143 | } |
| 144 | |
| ea48eb25 |
145 | function mime_get_element (&$structure, $msg, $ent_id) { |
| b74ba498 |
146 | |
| 8beafbbc |
147 | $elem_num = 1; |
| ea48eb25 |
148 | $msg->header = new msg_header(); |
| 149 | $msg->header->entity_id = $ent_id; |
| 4bbe6ccc |
150 | $properties = array(); |
| b74ba498 |
151 | |
| 8beafbbc |
152 | while (strlen($structure) > 0) { |
| 153 | $structure = trim($structure); |
| b74ba498 |
154 | $char = $structure{0}; |
| 8beafbbc |
155 | |
| b74ba498 |
156 | if (strtolower(substr($structure, 0, 3)) == 'nil') { |
| 157 | $text = ''; |
| 8beafbbc |
158 | $structure = substr($structure, 3); |
| b74ba498 |
159 | } else if ($char == '"') { |
| 8beafbbc |
160 | // loop through until we find the matching quote, and return that as a string |
| 161 | $pos = 1; |
| b74ba498 |
162 | $text = ''; |
| 163 | while ( ($char = $structure{$pos} ) <> '"' && $pos < strlen($structure)) { |
| 8beafbbc |
164 | $text .= $char; |
| 165 | $pos++; |
| b74ba498 |
166 | } |
| 8beafbbc |
167 | $structure = substr($structure, strlen($text) + 2); |
| b74ba498 |
168 | } else if ($char == '(') { |
| 8beafbbc |
169 | // comment me |
| 170 | $end = mime_match_parenthesis (0, $structure); |
| 171 | $sub = substr($structure, 1, $end-1); |
| 172 | $properties = mime_get_props($properties, $sub); |
| 173 | $structure = substr($structure, strlen($sub) + 2); |
| 174 | } else { |
| 175 | // loop through until we find a space or an end parenthesis |
| 176 | $pos = 0; |
| b74ba498 |
177 | $char = $structure{$pos}; |
| 178 | $text = ''; |
| 179 | while ($char != ' ' && $char != ')' && $pos < strlen($structure)) { |
| 8beafbbc |
180 | $text .= $char; |
| 181 | $pos++; |
| b74ba498 |
182 | $char = $structure{$pos}; |
| aceb0d5c |
183 | } |
| 8beafbbc |
184 | $structure = substr($structure, strlen($text)); |
| aceb0d5c |
185 | } |
| 8beafbbc |
186 | |
| 187 | // This is where all the text parts get put into the header |
| 188 | switch ($elem_num) { |
| b74ba498 |
189 | case 1: |
| 22ef7536 |
190 | $msg->header->type0 = strtolower($text); |
| 8beafbbc |
191 | break; |
| b74ba498 |
192 | case 2: |
| 22ef7536 |
193 | $msg->header->type1 = strtolower($text); |
| 8beafbbc |
194 | break; |
| b74ba498 |
195 | case 4: // Id |
| 196 | // Invisimail enclose images with <> |
| 197 | $msg->header->id = str_replace( '<', '', str_replace( '>', '', $text ) ); |
| 198 | break; |
| ea48eb25 |
199 | case 5: |
| 200 | $msg->header->description = $text; |
| ea48eb25 |
201 | break; |
| 8beafbbc |
202 | case 6: |
| 22ef7536 |
203 | $msg->header->encoding = strtolower($text); |
| 8beafbbc |
204 | break; |
| 205 | case 7: |
| ea48eb25 |
206 | $msg->header->size = $text; |
| 8beafbbc |
207 | break; |
| 208 | default: |
| b74ba498 |
209 | if ($msg->header->type0 == 'text' && $elem_num == 8) { |
| cbcf32f6 |
210 | // This is a plain text message, so lets get the number of lines |
| 211 | // that it contains. |
| ea48eb25 |
212 | $msg->header->num_lines = $text; |
| cbcf32f6 |
213 | |
| b74ba498 |
214 | } else if ($msg->header->type0 == 'message' && $msg->header->type1 == 'rfc822' && $elem_num == 8) { |
| 215 | // This is an encapsulated message, so lets start all over again and |
| ea48eb25 |
216 | // parse this message adding it on to the existing one. |
| 217 | $structure = trim($structure); |
| b74ba498 |
218 | if ( $structure{0} == '(' ) { |
| ea48eb25 |
219 | $e = mime_match_parenthesis (0, $structure); |
| 220 | $structure = substr($structure, 0, $e); |
| 221 | $structure = substr($structure, 1); |
| 222 | $m = mime_parse_structure($structure, $msg->header->entity_id); |
| b74ba498 |
223 | |
| cbcf32f6 |
224 | // the following conditional is there to correct a bug that wasn't |
| 225 | // incrementing the entity IDs correctly because of the special case |
| 226 | // that message/rfc822 is. This fixes it fine. |
| b74ba498 |
227 | if (substr($structure, 1, 1) != '(') |
| ea48eb25 |
228 | $m->header->entity_id = mime_increment_id(mime_new_element_level($ent_id)); |
| b74ba498 |
229 | |
| cbcf32f6 |
230 | // Now we'll go through and reformat the results. |
| ea48eb25 |
231 | if ($m->entities) { |
| 232 | for ($i=0; $i < count($m->entities); $i++) { |
| ea48eb25 |
233 | $msg->addEntity($m->entities[$i]); |
| 234 | } |
| 235 | } else { |
| ea48eb25 |
236 | $msg->addEntity($m); |
| 237 | } |
| b74ba498 |
238 | $structure = ""; |
| ea48eb25 |
239 | } |
| 8beafbbc |
240 | } |
| 241 | break; |
| 242 | } |
| 243 | $elem_num++; |
| 244 | $text = ""; |
| 245 | } |
| 246 | // loop through the additional properties and put those in the various headers |
| b74ba498 |
247 | if ($msg->header->type0 != 'message') { |
| cbcf32f6 |
248 | for ($i=0; $i < count($properties); $i++) { |
| b74ba498 |
249 | $msg->header->{$properties[$i]['name']} = $properties[$i]['value']; |
| cbcf32f6 |
250 | } |
| ea48eb25 |
251 | } |
| e4a256af |
252 | |
| ea48eb25 |
253 | return $msg; |
| 8beafbbc |
254 | } |
| 255 | |
| 256 | // I did most of the MIME stuff yesterday (June 20, 2000), but I couldn't |
| 257 | // figure out how to do this part, so I decided to go to bed. I woke up |
| 258 | // in the morning and had a flash of insight. I went to the white-board |
| 259 | // and scribbled it out, then spent a bit programming it, and this is the |
| 260 | // result. Nothing complicated, but I think my brain was fried yesterday. |
| cbcf32f6 |
261 | // Funny how that happens some times. |
| 8beafbbc |
262 | // |
| 263 | // This gets properties in a nested parenthesisized list. For example, |
| 264 | // this would get passed something like: ("attachment" ("filename" "luke.tar.gz")) |
| 265 | // This returns an array called $props with all paired up properties. |
| b74ba498 |
266 | // It ignores the "attachment" for now, maybe that should change later |
| 8beafbbc |
267 | // down the road. In this case, what is returned is: |
| 268 | // $props[0]["name"] = "filename"; |
| 269 | // $props[0]["value"] = "luke.tar.gz"; |
| 270 | function mime_get_props ($props, $structure) { |
| b74ba498 |
271 | |
| 8beafbbc |
272 | while (strlen($structure) > 0) { |
| 273 | $structure = trim($structure); |
| b74ba498 |
274 | $char = $structure{0}; |
| 8beafbbc |
275 | |
| b74ba498 |
276 | if ($char == '"') { |
| 8beafbbc |
277 | $pos = 1; |
| b74ba498 |
278 | $tmp = ''; |
| 279 | while ( ( $char = $structure{$pos} ) != '"' && |
| 280 | $pos < strlen($structure)) { |
| 8beafbbc |
281 | $tmp .= $char; |
| 282 | $pos++; |
| b74ba498 |
283 | } |
| 8beafbbc |
284 | $structure = trim(substr($structure, strlen($tmp) + 2)); |
| b74ba498 |
285 | $char = $structure{0}; |
| 8beafbbc |
286 | |
| b74ba498 |
287 | if ($char == '"') { |
| 8beafbbc |
288 | $pos = 1; |
| b74ba498 |
289 | $value = ''; |
| 290 | while ( ( $char = $structure{$pos} ) != '"' && |
| 291 | $pos < strlen($structure) ) { |
| 8beafbbc |
292 | $value .= $char; |
| 293 | $pos++; |
| b74ba498 |
294 | } |
| 8beafbbc |
295 | $structure = trim(substr($structure, strlen($tmp) + 2)); |
| b74ba498 |
296 | |
| 8beafbbc |
297 | $k = count($props); |
| b74ba498 |
298 | $props[$k]['name'] = strtolower($tmp); |
| 299 | $props[$k]['value'] = $value; |
| 300 | } else if ($char == '(') { |
| 8beafbbc |
301 | $end = mime_match_parenthesis (0, $structure); |
| 302 | $sub = substr($structure, 1, $end-1); |
| b74ba498 |
303 | if (! isset($props)) |
| 304 | $props = array(); |
| 8beafbbc |
305 | $props = mime_get_props($props, $sub); |
| 306 | $structure = substr($structure, strlen($sub) + 2); |
| 307 | } |
| 308 | return $props; |
| b74ba498 |
309 | } else if ($char == '(') { |
| 8beafbbc |
310 | $end = mime_match_parenthesis (0, $structure); |
| 311 | $sub = substr($structure, 1, $end-1); |
| 312 | $props = mime_get_props($props, $sub); |
| 313 | $structure = substr($structure, strlen($sub) + 2); |
| ea48eb25 |
314 | return $props; |
| 8beafbbc |
315 | } else { |
| 316 | return $props; |
| 7831268e |
317 | } |
| 8beafbbc |
318 | } |
| 319 | } |
| 7831268e |
320 | |
| 8beafbbc |
321 | // Matches parenthesis. It will return the position of the matching |
| 322 | // parenthesis in $structure. For instance, if $structure was: |
| 323 | // ("text" "plain" ("val1name", "1") nil ... ) |
| 324 | // x x |
| 325 | // then this would return 42 to match up those two. |
| 326 | function mime_match_parenthesis ($pos, $structure) { |
| b74ba498 |
327 | |
| 328 | $j = strlen( $structure ); |
| 8beafbbc |
329 | |
| 330 | // ignore all extra characters |
| 5ffe5a7e |
331 | // If inside of a string, skip string -- Boundary IDs and other |
| 332 | // things can have ) in them. |
| b74ba498 |
333 | if( $structure{$pos} != '(' ) |
| 334 | return( $j ); |
| 335 | |
| 336 | while( $pos < $j ) { |
| 8beafbbc |
337 | $pos++; |
| b74ba498 |
338 | if ($structure{$pos} == ')') { |
| 8beafbbc |
339 | return $pos; |
| b74ba498 |
340 | } elseif ($structure{$pos} == '"') { |
| 341 | $pos++; |
| 342 | while( $structure{$pos} != '"' && |
| 343 | $pos < $j ) { |
| 344 | if (substr($structure, $pos, 2) == '\\"') |
| 345 | $pos++; |
| 346 | elseif (substr($structure, $pos, 2) == '\\\\') |
| 347 | $pos++; |
| 348 | $pos++; |
| 5ffe5a7e |
349 | } |
| b74ba498 |
350 | } elseif ( $structure{$pos} == '(' ) { |
| 8beafbbc |
351 | $pos = mime_match_parenthesis ($pos, $structure); |
| 352 | } |
| d4467150 |
353 | } |
| 377a40b2 |
354 | echo "Error decoding mime structure. Report this as a bug!<br>\n"; |
| b74ba498 |
355 | return( $pos ); |
| 8beafbbc |
356 | } |
| d4467150 |
357 | |
| a3daaaf3 |
358 | function mime_fetch_body ($imap_stream, $id, $ent_id ) { |
| 359 | // do a bit of error correction. If we couldn't find the entity id, just guess |
| 360 | // that it is the first one. That is usually the case anyway. |
| 361 | if (!$ent_id) |
| 362 | $ent_id = 1; |
| 363 | $sid = sqimap_session_id(); |
| 364 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n"); |
| 365 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
| 366 | $topline = array_shift($data); |
| 367 | while (! ereg('\\* [0-9]+ FETCH ', $topline) && $data) |
| 368 | $topline = array_shift($data); |
| 369 | $wholemessage = implode('', $data); |
| 370 | if (ereg('\\{([^\\}]*)\\}', $topline, $regs)) { |
| 371 | $ret = substr( $wholemessage, 0, $regs[1] ); |
| 372 | /* |
| 373 | There is some information in the content info header that could be important |
| 374 | in order to parse html messages. Let's get them here. |
| 375 | */ |
| 376 | if( $ret{0} == '<' ) { |
| 377 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id.MIME]\r\n"); |
| 378 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
| 379 | $base = ''; |
| 380 | $k = 10; |
| 381 | foreach( $data as $d ) { |
| 382 | if( substr( $d, 0, 13 ) == 'Content-Base:' ) { |
| 383 | $j = strlen( $d ); |
| 384 | $i = 13; |
| 385 | $base = ''; |
| 386 | while( $i < $j && |
| 387 | ( !isNoSep( $d{$i} ) || $d{$i} == '"' ) ) |
| 388 | $i++; |
| 389 | while( $i < $j ) { |
| 390 | if( isNoSep( $d{$i} ) ) |
| 391 | $base .= $d{$i}; |
| 392 | $i++; |
| 393 | } |
| 394 | $k = 0; |
| 395 | } elseif( $k == 1 && !isnosep( $d{0} ) ) { |
| 396 | $base .= substr( $d, 1 ); |
| 397 | } |
| 398 | $k++; |
| 399 | } |
| 400 | if( $base <> '' ) |
| 401 | $ret = "<base href=\"$base\">" . $ret; |
| 402 | } |
| 403 | } else if (ereg('"([^"]*)"', $topline, $regs)) { |
| 404 | $ret = $regs[1]; |
| 405 | } else { |
| a019eeb8 |
406 | global $where, $what, $mailbox, $passed_id, $startMessage; |
| 407 | $par = "mailbox=".urlencode($mailbox)."&passed_id=$passed_id"; |
| 408 | if (isset($where) && isset($what)) { |
| 409 | $par .= "&where=".urlencode($where)."&what=".urlencode($what); |
| 410 | } else { |
| 411 | $par .= "&startMessage=$startMessage&show_more=0"; |
| a3daaaf3 |
412 | } |
| a019eeb8 |
413 | $par .= '&response='.urlencode($response).'&message='.urlencode($message). |
| 414 | '&topline='.urlencode($topline); |
| 415 | |
| 416 | echo '<b><font color=$color[2]>Body retrieval error. The reason for this is most probably that<BR> ' . |
| 417 | 'the message is malformed. Please help us making future versions<BR> ' . |
| 418 | "better by submitting this message to the developers knowledgebase!<BR>\n" . |
| 419 | "<A HREF=\"../src/retrievalerror.php?$par\">Submit message</A><BR>" . |
| 420 | |
| 421 | "<tt>Response: $response<BR>" . |
| 422 | "Message: $message<BR>" . |
| 423 | "FETCH line: $topline<BR></tt></font></b>"; |
| 424 | |
| 425 | fputs ($imap_stream, "$sid FETCH $passed_id BODY[]\r\n"); |
| 426 | $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message); |
| 427 | array_shift($data); |
| 428 | $wholemessage = implode('', $data); |
| 429 | |
| 430 | $ret = "---------------\n$wholemessage"; |
| 431 | |
| a3daaaf3 |
432 | } |
| 433 | return( $ret ); |
| 434 | } |
| d4467150 |
435 | |
| beb9e459 |
436 | function mime_print_body_lines ($imap_stream, $id, $ent_id, $encoding) { |
| 437 | // do a bit of error correction. If we couldn't find the entity id, just guess |
| 438 | // that it is the first one. That is usually the case anyway. |
| 439 | if (!$ent_id) $ent_id = 1; |
| b74ba498 |
440 | $sid = sqimap_session_id(); |
| 1d1e02f4 |
441 | // Don't kill the connection if the browser is over a dialup |
| 442 | // and it would take over 30 seconds to download it. |
| 443 | set_time_limit(0); |
| 444 | |
| b74ba498 |
445 | fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n"); |
| 446 | $cnt = 0; |
| 447 | $continue = true; |
| 448 | $read = fgets ($imap_stream,4096); |
| 449 | // This could be bad -- if the section has sqimap_session_id() . ' OK' |
| 450 | // or similar, it will kill the download. |
| 451 | while (!ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) { |
| 452 | if (trim($read) == ')==') { |
| 453 | $read1 = $read; |
| 454 | $read = fgets ($imap_stream,4096); |
| 455 | if (ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) { |
| 456 | return; |
| 457 | } else { |
| 458 | echo decodeBody($read1, $encoding) . |
| 459 | decodeBody($read, $encoding); |
| 460 | } |
| 461 | } else if ($cnt) { |
| 462 | echo decodeBody($read, $encoding); |
| 463 | } |
| 464 | $read = fgets ($imap_stream,4096); |
| 465 | $cnt++; |
| 466 | } |
| beb9e459 |
467 | } |
| 468 | |
| 8beafbbc |
469 | /* -[ END MIME DECODING ]----------------------------------------------------------- */ |
| d4467150 |
470 | |
| aceb0d5c |
471 | |
| d4467150 |
472 | |
| 8beafbbc |
473 | /** This is the first function called. It decides if this is a multipart |
| 474 | message or if it should be handled as a single entity |
| 4809f489 |
475 | **/ |
| 090595e1 |
476 | function decodeMime ($imap_stream, &$header) { |
| 8beafbbc |
477 | global $username, $key, $imapServerAddress, $imapPort; |
| 8d8ab69a |
478 | return mime_structure ($imap_stream, $header); |
| 8beafbbc |
479 | } |
| b1dadc61 |
480 | |
| cbcf32f6 |
481 | // This is here for debugging purposese. It will print out a list |
| 482 | // of all the entity IDs that are in the $message object. |
| b74ba498 |
483 | /* |
| ea48eb25 |
484 | function listEntities ($message) { |
| 485 | if ($message) { |
| cbcf32f6 |
486 | if ($message->header->entity_id) |
| b74ba498 |
487 | echo "<tt>" . $message->header->entity_id . ' : ' . $message->header->type0 . '/' . $message->header->type1 . '<br>'; |
| cbcf32f6 |
488 | for ($i = 0; $message->entities[$i]; $i++) { |
| 489 | $msg = listEntities($message->entities[$i], $ent_id); |
| 490 | if ($msg) |
| 491 | return $msg; |
| 492 | } |
| ea48eb25 |
493 | } |
| 494 | } |
| b74ba498 |
495 | */ |
| ea48eb25 |
496 | |
| cbcf32f6 |
497 | // returns a $message object for a particular entity id |
| 8beafbbc |
498 | function getEntity ($message, $ent_id) { |
| 499 | if ($message) { |
| ea48eb25 |
500 | if ($message->header->entity_id == $ent_id && strlen($ent_id) == strlen($message->header->entity_id)) { |
| 8beafbbc |
501 | return $message; |
| b1dadc61 |
502 | } else { |
| cd928157 |
503 | for ($i = 0; isset($message->entities[$i]); $i++) { |
| 8beafbbc |
504 | $msg = getEntity ($message->entities[$i], $ent_id); |
| 505 | if ($msg) |
| 506 | return $msg; |
| b1dadc61 |
507 | } |
| b74ba498 |
508 | } |
| 8beafbbc |
509 | } |
| 510 | } |
| 511 | |
| a3daaaf3 |
512 | // figures out what entity to display and returns the $message object |
| 513 | // for that entity. |
| 514 | function findDisplayEntity ($message, $textOnly = 1) { |
| 515 | global $show_html_default; |
| 516 | |
| 517 | $entity = 0; |
| 518 | |
| 519 | if ($message) { |
| 520 | if ( $message->header->type0 == 'multipart' && |
| 521 | ( $message->header->type1 == 'alternative' || |
| 522 | $message->header->type1 == 'related' ) && |
| 523 | $show_html_default && ! $textOnly ) { |
| 524 | $entity = findDisplayEntityHTML($message); |
| 525 | } |
| 526 | |
| 527 | // Show text/plain or text/html -- the first one we find. |
| 528 | if ( $entity == 0 && |
| 529 | $message->header->type0 == 'text' && |
| 530 | ( $message->header->type1 == 'plain' || |
| 531 | $message->header->type1 == 'html' ) && |
| 532 | isset($message->header->entity_id) ) { |
| 533 | $entity = $message->header->entity_id; |
| 534 | } |
| 535 | |
| 536 | $i = 0; |
| 537 | while ($entity == 0 && isset($message->entities[$i]) ) { |
| 538 | $entity = findDisplayEntity($message->entities[$i], $textOnly); |
| 539 | $i++; |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | return( $entity ); |
| 544 | } |
| b74ba498 |
545 | |
| c3a80dac |
546 | // Shows the HTML version |
| 547 | function findDisplayEntityHTML ($message) { |
| b74ba498 |
548 | if ($message->header->type0 == 'text' && |
| c3a80dac |
549 | $message->header->type1 == 'html' && |
| b74ba498 |
550 | isset($message->header->entity_id)) |
| 551 | return $message->header->entity_id; |
| c3a80dac |
552 | for ($i = 0; isset($message->entities[$i]); $i ++) { |
| 553 | $entity = findDisplayEntityHTML($message->entities[$i]); |
| b74ba498 |
554 | if ($entity != 0) |
| 555 | return $entity; |
| c3a80dac |
556 | } |
| e2ab93e5 |
557 | return 0; |
| b1dadc61 |
558 | } |
| 8405ee35 |
559 | |
| d068c0ec |
560 | /** This returns a parsed string called $body. That string can then |
| 561 | be displayed as the actual message in the HTML. It contains |
| 562 | everything needed, including HTML Tags, Attachments at the |
| 563 | bottom, etc. |
| 4809f489 |
564 | **/ |
| 8d8ab69a |
565 | function formatBody($imap_stream, $message, $color, $wrap_at) { |
| cbcf32f6 |
566 | // this if statement checks for the entity to show as the |
| 567 | // primary message. To add more of them, just put them in the |
| 568 | // order that is their priority. |
| 5f1c529a |
569 | global $startMessage, $username, $key, $imapServerAddress, $imapPort, |
| 570 | $show_html_default; |
| 8beafbbc |
571 | |
| 8beafbbc |
572 | $id = $message->header->id; |
| 573 | $urlmailbox = urlencode($message->header->mailbox); |
| 574 | |
| e4a256af |
575 | // Get the right entity and redefine message to be this entity |
| 3ae6e629 |
576 | // Pass the 0 to mean that we want the 'best' viewable one |
| 577 | $ent_num = findDisplayEntity ($message, 0); |
| 2c252f5a |
578 | $body_message = getEntity($message, $ent_num); |
| b74ba498 |
579 | if (($body_message->header->type0 == 'text') || |
| 580 | ($body_message->header->type0 == 'rfc822')) { |
| 581 | |
| d51894be |
582 | $body = mime_fetch_body ($imap_stream, $id, $ent_num); |
| d4ff4d67 |
583 | $body = decodeBody($body, $body_message->header->encoding); |
| b74ba498 |
584 | $hookResults = do_hook("message_body", $body); |
| 585 | $body = $hookResults[1]; |
| b36d403c |
586 | |
| d4ff4d67 |
587 | // If there are other types that shouldn't be formatted, add |
| b74ba498 |
588 | // them here |
| a3daaaf3 |
589 | if ($body_message->header->type1 == 'html') { |
| 590 | if( $show_html_default <> 1 ) { |
| 591 | $body = strip_tags( $body ); |
| 592 | translateText($body, $wrap_at, $body_message->header->charset); |
| 593 | } else { |
| 594 | $body = MagicHTML( $body, $id ); |
| 595 | } |
| 596 | } else { |
| 9eea179c |
597 | translateText($body, $wrap_at, $body_message->header->charset); |
| b74ba498 |
598 | } |
| 599 | |
| 7b9592dc |
600 | $body .= "<SMALL><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$ent_num&mailbox=$urlmailbox&showHeaders=1\">". _("Download this as a file") ."</A></CENTER><BR></SMALL>"; |
| b74ba498 |
601 | |
| d4ff4d67 |
602 | /** Display the ATTACHMENTS: message if there's more than one part **/ |
| dd389be5 |
603 | $body .= "</TD></TR></TABLE>"; |
| 719534f2 |
604 | if (isset($message->entities[0])) { |
| d4ff4d67 |
605 | $body .= formatAttachments ($message, $ent_num, $message->header->mailbox, $id); |
| d4ff4d67 |
606 | } |
| b74ba498 |
607 | $body .= "</TD></TR></TABLE>"; |
| d4ff4d67 |
608 | } else { |
| cba164a0 |
609 | $body = formatAttachments ($message, -1, $message->header->mailbox, $id); |
| 8405ee35 |
610 | } |
| b74ba498 |
611 | return( $body ); |
| d4467150 |
612 | } |
| 613 | |
| 8beafbbc |
614 | // A recursive function that returns a list of attachments with links |
| 615 | // to where to download these attachments |
| 616 | function formatAttachments ($message, $ent_id, $mailbox, $id) { |
| f4991a86 |
617 | global $where, $what; |
| dd389be5 |
618 | global $startMessage, $color; |
| 719534f2 |
619 | static $ShownHTML = 0; |
| b74ba498 |
620 | |
| 621 | $body = ""; |
| 622 | if ($ShownHTML == 0) { |
| dd389be5 |
623 | $ShownHTML = 1; |
| b74ba498 |
624 | |
| 625 | $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=2 BORDER=0 BGCOLOR=\"$color[0]\"><TR>\n" . |
| 626 | "<TH ALIGN=\"left\" BGCOLOR=\"$color[9]\"><B>\n" . |
| 627 | _("Attachments") . ':' . |
| 628 | "</B></TH></TR><TR><TD>\n" . |
| 629 | "<TABLE CELLSPACING=0 CELLPADDING=1 BORDER=0>\n" . |
| 630 | formatAttachments ($message, $ent_id, $mailbox, $id) . |
| 631 | "</TABLE></TD></TR></TABLE>"; |
| 632 | |
| 633 | return( $body ); |
| dd389be5 |
634 | } |
| b74ba498 |
635 | |
| 8beafbbc |
636 | if ($message) { |
| 637 | if (!$message->entities) { |
| 638 | $type0 = strtolower($message->header->type0); |
| 639 | $type1 = strtolower($message->header->type1); |
| 66e1a00e |
640 | $name = decodeHeader($message->header->name); |
| b74ba498 |
641 | |
| 8beafbbc |
642 | if ($message->header->entity_id != $ent_id) { |
| 888c82e2 |
643 | $filename = decodeHeader($message->header->filename); |
| b74ba498 |
644 | if (trim($filename) == '') { |
| 645 | if (trim($name) == '') { |
| 646 | if( trim( $message->header->id ) == '' ) |
| 647 | $display_filename = 'untitled-[' . $message->header->entity_id . ']' ; |
| 648 | else |
| 649 | $display_filename = 'cid: ' . $message->header->id; |
| 650 | // $display_filename = 'untitled-[' . $message->header->entity_id . ']' ; |
| 651 | } else { |
| 652 | $display_filename = $name; |
| 653 | $filename = $name; |
| 654 | } |
| 8beafbbc |
655 | } else { |
| 656 | $display_filename = $filename; |
| 657 | } |
| b74ba498 |
658 | |
| 8beafbbc |
659 | $urlMailbox = urlencode($mailbox); |
| 660 | $ent = urlencode($message->header->entity_id); |
| b74ba498 |
661 | |
| 662 | $DefaultLink = |
| bc104ef3 |
663 | "../src/download.php?startMessage=$startMessage&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent"; |
| dd389be5 |
664 | if ($where && $what) |
| 665 | $DefaultLink .= '&where=' . urlencode($where) . '&what=' . urlencode($what); |
| 701c9c6b |
666 | $Links['download link']['text'] = _("download"); |
| b74ba498 |
667 | $Links['download link']['href'] = |
| bc104ef3 |
668 | "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent"; |
| dd389be5 |
669 | $ImageURL = ''; |
| b74ba498 |
670 | |
| dd389be5 |
671 | $HookResults = do_hook("attachment $type0/$type1", $Links, |
| b74ba498 |
672 | $startMessage, $id, $urlMailbox, $ent, $DefaultLink, |
| ef30bf50 |
673 | $display_filename, $where, $what); |
| dd389be5 |
674 | |
| 675 | $Links = $HookResults[1]; |
| 676 | $DefaultLink = $HookResults[6]; |
| 677 | |
| b74ba498 |
678 | $body .= '<TR><TD> </TD><TD>' . |
| 679 | "<A HREF=\"$DefaultLink\">$display_filename</A> </TD>" . |
| 680 | '<TD><SMALL><b>' . show_readable_size($message->header->size) . |
| 681 | '</b> </small></TD>' . |
| 682 | "<TD><SMALL>[ $type0/$type1 ] </SMALL></TD>" . |
| 683 | '<TD><SMALL>'; |
| ea48eb25 |
684 | if ($message->header->description) |
| dd389be5 |
685 | $body .= '<b>' . htmlspecialchars($message->header->description) . '</b>'; |
| fde32e3f |
686 | $body .= '</SMALL></TD><TD><SMALL> '; |
| b74ba498 |
687 | |
| 688 | |
| dd389be5 |
689 | $SkipSpaces = 1; |
| b74ba498 |
690 | foreach ($Links as $Val) { |
| 691 | if ($SkipSpaces) { |
| dd389be5 |
692 | $SkipSpaces = 0; |
| b74ba498 |
693 | } else { |
| fde32e3f |
694 | $body .= ' | '; |
| dd389be5 |
695 | } |
| fde32e3f |
696 | $body .= '<a href="' . $Val['href'] . '">' . $Val['text'] . '</a>'; |
| dd389be5 |
697 | } |
| b74ba498 |
698 | |
| dd389be5 |
699 | unset($Links); |
| b74ba498 |
700 | |
| fde32e3f |
701 | $body .= "</SMALL></TD></TR>\n"; |
| 8beafbbc |
702 | } |
| 8beafbbc |
703 | } else { |
| 704 | for ($i = 0; $i < count($message->entities); $i++) { |
| 705 | $body .= formatAttachments ($message->entities[$i], $ent_id, $mailbox, $id); |
| 706 | } |
| 8beafbbc |
707 | } |
| b74ba498 |
708 | return( $body ); |
| 8beafbbc |
709 | } |
| 710 | } |
| 4809f489 |
711 | |
| 712 | |
| 713 | /** this function decodes the body depending on the encoding type. **/ |
| d4467150 |
714 | function decodeBody($body, $encoding) { |
| 623332f3 |
715 | $body = str_replace("\r\n", "\n", $body); |
| d4467150 |
716 | $encoding = strtolower($encoding); |
| 7831268e |
717 | |
| 358f007e |
718 | global $show_html_default; |
| 719 | |
| b74ba498 |
720 | if ($encoding == 'quoted-printable') { |
| ef3f274f |
721 | $body = quoted_printable_decode($body); |
| b74ba498 |
722 | |
| 723 | |
| 724 | /* |
| 725 | Following code has been comented as I see no reason for it. |
| 726 | If there is any please tell me a mingo@rotedic.com |
| 727 | |
| ef3f274f |
728 | while (ereg("=\n", $body)) |
| 729 | $body = ereg_replace ("=\n", "", $body); |
| b74ba498 |
730 | */ |
| 731 | } else if ($encoding == 'base64') { |
| ef3f274f |
732 | $body = base64_decode($body); |
| d4467150 |
733 | } |
| b74ba498 |
734 | |
| a47b5200 |
735 | // All other encodings are returned raw. |
| ef3f274f |
736 | return $body; |
| aceb0d5c |
737 | } |
| a4c2cd49 |
738 | |
| 739 | |
| b74ba498 |
740 | // This functions decode strings that is encoded according to |
| a4c2cd49 |
741 | // RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text). |
| 2e434774 |
742 | function decodeHeader ($string) { |
| b74ba498 |
743 | if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', |
| a4c2cd49 |
744 | $string, $res)) { |
| 1fd97780 |
745 | if (ucfirst($res[2]) == "B") { |
| 746 | $replace = base64_decode($res[3]); |
| a4c2cd49 |
747 | } else { |
| 1fd97780 |
748 | $replace = ereg_replace("_", " ", $res[3]); |
| b74ba498 |
749 | // Convert lowercase Quoted Printable to uppercase for |
| 750 | // quoted_printable_decode to understand it. |
| 751 | while (ereg("(=(([0-9][abcdef])|([abcdef][0-9])|([abcdef][abcdef])))", $replace, $res)) { |
| 752 | $replace = str_replace($res[1], strtoupper($res[1]), $replace); |
| 753 | } |
| a4c2cd49 |
754 | $replace = quoted_printable_decode($replace); |
| 755 | } |
| 756 | |
| 1fd97780 |
757 | $replace = charset_decode ($res[1], $replace); |
| a4c2cd49 |
758 | |
| 9be55c4b |
759 | // Remove the name of the character set. |
| 760 | $string = eregi_replace ('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', |
| a4c2cd49 |
761 | $replace, $string); |
| 9be55c4b |
762 | |
| 2e434774 |
763 | // In case there should be more encoding in the string: recurse |
| 764 | return (decodeHeader($string)); |
| b74ba498 |
765 | } else |
| a4c2cd49 |
766 | return ($string); |
| 767 | } |
| 768 | |
| c3084273 |
769 | // Encode a string according to RFC 1522 for use in headers if it |
| bb60fa3f |
770 | // contains 8-bit characters or anything that looks like it should |
| 771 | // be encoded. |
| c3084273 |
772 | function encodeHeader ($string) { |
| 773 | global $default_charset; |
| b74ba498 |
774 | |
| f7b3ba37 |
775 | // Encode only if the string contains 8-bit characters or =? |
| 776 | $j = strlen( $string ); |
| 777 | $l = FALSE; // Must be encoded ? |
| 778 | $ret = ''; |
| 779 | for( $i=0; $i < $j; ++$i) { |
| 780 | switch( $string{$i} ) { |
| 781 | case '=': |
| b74ba498 |
782 | $ret .= '=3D'; |
| 783 | break; |
| 784 | case '?': |
| 785 | $l = TRUE; |
| 786 | $ret .= '=3F'; |
| 787 | break; |
| 788 | case '_': |
| 789 | $ret .= '=5F'; |
| 790 | break; |
| 791 | case ' ': |
| 792 | $ret .= '_'; |
| 793 | break; |
| 794 | default: |
| 795 | $k = ord( $string{$i} ); |
| 796 | if( $k > 126 ) { |
| 797 | $ret .= sprintf("=%02X", $k); |
| 798 | $l = TRUE; |
| 799 | } else |
| 800 | $ret .= $string{$i}; |
| f7b3ba37 |
801 | } |
| 802 | } |
| b74ba498 |
803 | |
| f7b3ba37 |
804 | if( $l ) |
| 805 | $string = "=?$default_charset?Q?$ret?="; |
| b74ba498 |
806 | |
| f7b3ba37 |
807 | return( $string ); |
| 808 | } |
| c3084273 |
809 | |
| a3daaaf3 |
810 | /* |
| 811 | Strips dangerous tags from html messages. |
| 812 | */ |
| 813 | |
| 814 | function MagicHTML( $body, $id ) { |
| 815 | |
| 816 | global $message, $PHP_SELF, $HTTP_SERVER_VARS; |
| 817 | |
| 818 | $j = strlen( $body ); // Legnth of the HTML |
| 819 | $ret = ''; // Returned string |
| 820 | $bgcolor = '#ffffff'; // Background style color (defaults to white) |
| 821 | $leftmargin = ''; // Left margin style |
| 822 | $title = ''; // HTML title if any |
| 823 | |
| 824 | $i = 0; |
| 825 | while( $i < $j ) { |
| 826 | if( $body{$i} == '<' ) { |
| 827 | $tag = $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}; |
| 828 | switch( strtoupper( $tag ) ) { |
| 829 | // Strips the entire tag and contents |
| 830 | case 'APPL': |
| 831 | case 'EMBB': |
| 832 | case 'FRAM': |
| 833 | case 'SCRI': |
| 834 | case 'OBJE': |
| 835 | $etg = '/' . $tag; |
| 836 | while( $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}.$body{$i+5} <> $etg && |
| 837 | $i < $j ) $i++; |
| 838 | while( $i < $j && $body{++$i} <> '>' ); |
| 839 | // $ret .= "<!-- $tag removed -->"; |
| 840 | break; |
| 841 | // Substitute Title |
| 842 | case 'TITL': |
| 843 | $i += 5; |
| 844 | while( $body{$i} <> '>' && // </title> |
| 845 | $i < $j ) |
| 846 | $i++; |
| 847 | $i++; |
| 848 | $title = ''; |
| 849 | while( $body{$i} <> '<' && // </title> |
| 850 | $i < $j ) { |
| 851 | $title .= $body{$i}; |
| 852 | $i++; |
| 853 | } |
| 854 | $i += 7; |
| 855 | break; |
| 856 | // Destroy these tags |
| 857 | case 'HTML': |
| 858 | case 'HEAD': |
| 859 | case '/HTM': |
| 860 | case '/HEA': |
| 861 | case '!DOC': |
| 862 | case 'META': |
| 863 | case 'DIV ': |
| 864 | case '/DIV': |
| 865 | case '!-- ': |
| 866 | $i += 4; |
| 867 | while( $body{$i} <> '>' && |
| 868 | $i < $j ) |
| 869 | $i++; |
| 870 | // $i++; |
| 871 | break; |
| 872 | case 'STYL': |
| 873 | $i += 5; |
| 874 | while( $body{$i} <> '>' && // </title> |
| 875 | $i < $j ) |
| 876 | $i++; |
| 877 | $i++; |
| 878 | // We parse the style to look for interesting stuff |
| 879 | $styleblk = ''; |
| 880 | while( $body{$i} <> '>' && |
| 881 | $i < $j ) { |
| 882 | // First we get the name of the style |
| 883 | $style = ''; |
| 884 | while( $body{$i} <> '>' && |
| 885 | $body{$i} <> '<' && |
| 886 | $body{$i} <> '{' && |
| 887 | $i < $j ) { |
| 888 | if( isnoSep( $body{$i} ) ) |
| 889 | $style .= $body{$i}; |
| 890 | $i++; |
| 891 | } |
| 5487a8d0 |
892 | stripComments( $i, $j, $body ); |
| a3daaaf3 |
893 | $style = strtoupper( trim( $style ) ); |
| 894 | if( $style == 'BODY' ) { |
| 895 | // Next we look into the definitions of the body style |
| 896 | while( $body{$i} <> '>' && |
| 897 | $body{$i} <> '}' && |
| 898 | $i < $j ) { |
| 899 | // We look for the background color if any. |
| 900 | if( substr( $body, $i, 17 ) == 'BACKGROUND-COLOR:' ) { |
| 901 | $i += 17; |
| 902 | $bgcolor = getStyleData( $i, $j, $body ); |
| 903 | } elseif ( substr( $body, $i, 12 ) == 'MARGIN-LEFT:' ) { |
| 904 | $i += 12; |
| 905 | $leftmargin = getStyleData( $i, $j, $body ); |
| 906 | } |
| 907 | $i++; |
| 908 | } |
| 909 | } else { |
| 910 | // Other style are mantained |
| 911 | $styleblk .= "$style "; |
| 912 | while( $body{$i} <> '>' && |
| 913 | $body{$i} <> '<' && |
| 914 | $body{$i} <> '}' && |
| 915 | $i < $j ) { |
| 916 | $styleblk .= $body{$i}; |
| 917 | $i++; |
| 918 | } |
| 919 | $styleblk .= $body{$i}; |
| 920 | } |
| 5487a8d0 |
921 | stripComments( $i, $j, $body ); |
| a3daaaf3 |
922 | if( $body{$i} <> '>' ) |
| 923 | $i++; |
| 924 | } |
| 925 | if( $styleblk <> '' ) |
| 926 | $ret .= "<style>$styleblk"; |
| 927 | break; |
| 928 | case 'BODY': |
| 929 | if( $title <> '' ) |
| 930 | $ret .= '<b>' . _("Title:") . " </b>$title<br>\n"; |
| 931 | $ret .= "<TABLE"; |
| 932 | $i += 5; |
| 4aaea201 |
933 | if (! isset($base)) |
| 934 | $base = ''; |
| a3daaaf3 |
935 | $ret .= stripEvent( $i, $j, $body, $id, $base ); |
| 936 | //if( $bgcolor <> '' ) |
| 937 | $ret .= " bgcolor=$bgcolor"; |
| 938 | $ret .= ' width=100%><tr>'; |
| 939 | if( $leftmargin <> '' ) |
| 940 | $ret .= "<td width=$leftmargin> </td>"; |
| 941 | $ret .= '<td>'; |
| 942 | break; |
| 943 | case 'BASE': |
| 944 | $i += 5; |
| 945 | $base = ''; |
| 946 | while( !isNoSep( $body{$i} ) && |
| 947 | $i < $j ) |
| 948 | $i++; |
| 949 | if( strcasecmp( substr( $base, 0, 4 ), 'href' ) ) { |
| 950 | $i += 5; |
| 951 | while( !isNoSep( $body{$i} ) && |
| 952 | $i < $j ) |
| 953 | $i++; |
| 954 | while( $body{$i} <> '>' && |
| 955 | $i < $j ) { |
| 956 | if( $body{$i} <> '"' ) |
| 957 | $base .= $body{$i}; |
| 958 | $i++; |
| 959 | } |
| 960 | // Debuging $ret .= "<!-- base == $base -->"; |
| 961 | if( strcasecmp( substr( $base, 0, 4 ), 'file' ) <> 0 ) |
| 962 | $ret .= "\n<BASE HREF=\"$base\">\n"; |
| 963 | } |
| 964 | break; |
| 965 | case '/BOD': |
| 966 | $ret .= '</td></tr></TABLE>'; |
| 967 | $i += 6; |
| 968 | break; |
| 969 | default: |
| 970 | // Following tags can contain some event handler, lets search it |
| 971 | stripComments( $i, $j, $body ); |
| 4aaea201 |
972 | if (! isset($base)) |
| 973 | $base = ''; |
| a3daaaf3 |
974 | $ret .= stripEvent( $i, $j, $body, $id, $base ) . '>'; |
| 975 | // $ret .= "<!-- $tag detected -->"; |
| 976 | } |
| 977 | } else { |
| 978 | $ret .= $body{$i}; |
| 979 | } |
| 980 | $i++; |
| 981 | } |
| 982 | |
| 983 | return( "\n\n<!-- HTML Output ahead -->\n" . |
| 984 | $ret . |
| 985 | "\n<!-- END of HTML Output --><base href=\"". |
| 986 | $HTTP_SERVER_VARS["SERVER_NAME"] . substr( $PHP_SELF, 0, strlen( $PHP_SELF ) - 13 ) . |
| 987 | "\">\n\n" ); |
| 988 | } |
| 989 | |
| 990 | function isNoSep( $char ) { |
| 991 | |
| 992 | switch( $char ) { |
| 993 | case ' ': |
| 994 | case "\n": |
| 995 | case "\t": |
| 996 | case "\r": |
| 997 | case '>': |
| 998 | case '"': |
| 999 | return( FALSE ); |
| 1000 | break; |
| 1001 | default: |
| 1002 | return( TRUE ); |
| 1003 | } |
| 1004 | |
| 1005 | } |
| 1006 | |
| 1007 | /* |
| 1008 | The following function is usefull to remove extra data that can cause |
| 1009 | html not to display properly. Especialy with MS stuff. |
| 1010 | */ |
| 1011 | |
| 1012 | function stripComments( &$i, $j, &$body ) { |
| 1013 | |
| 1014 | while( $body{$i}.$body{$i+1}.$body{$i+2}.$body{$i+3} == '<!--' && |
| 1015 | $i < $j ) { |
| 1016 | $i += 5; |
| 1017 | while( $body{$i-2}.$body{$i-1}.$body{$i} <> '-->' && |
| 1018 | $i < $j ) |
| 1019 | $i++; |
| 1020 | $i++; |
| 1021 | } |
| 1022 | |
| 1023 | return; |
| 1024 | |
| 1025 | } |
| 1026 | |
| 1027 | /* Gets the style data of a specific style */ |
| 1028 | |
| 1029 | function getStyleData( &$i, $j, &$body ) { |
| 1030 | |
| 1031 | // We skip spaces |
| 1032 | while( $body{$i} <> '>' && !isNoSep( $body{$i} ) && |
| 1033 | $i < $j ) { |
| 1034 | $i++; |
| 1035 | } |
| 1036 | // And get the color |
| 1037 | $ret = ''; |
| 1038 | while( isNoSep( $body{$i} ) && |
| 1039 | $i < $j ) { |
| 1040 | $ret .= $body{$i}; |
| 1041 | $i++; |
| 1042 | } |
| 1043 | |
| 1044 | return( $ret ); |
| 1045 | } |
| 1046 | |
| 1047 | /* |
| 1048 | Private function for strip_dangerous_tag. Look for event based coded and "remove" it |
| 1049 | change on with no (onload -> noload) |
| 1050 | */ |
| 1051 | |
| 1052 | function stripEvent( &$i, $j, &$body, $id, $base ) { |
| 1053 | |
| 1054 | global $message; |
| 1055 | |
| 1056 | $ret = ''; |
| 1057 | |
| 1058 | while( $body{$i} <> '>' && |
| 1059 | $i < $j ) { |
| 1060 | $etg = strtolower($body{$i}.$body{$i+1}.$body{$i+2}); |
| 1061 | switch( $etg ) { |
| 1062 | case '../': |
| 1063 | // Retrolinks are not allowed without a base because they mess with SM security |
| 1064 | if( $base == '' ) { |
| 1065 | $i += 2; |
| 1066 | } else { |
| 1067 | $ret .= '.'; |
| 1068 | } |
| 1069 | break; |
| 1070 | case 'cid': |
| 1071 | // Internal link |
| 1072 | $k = $i-1; |
| 1073 | if( $body{$i+3} == ':') { |
| 1074 | $i +=4; |
| 1075 | $name = ''; |
| 1076 | while( isNoSep( $body{$i} ) && |
| 1077 | $i < $j ) |
| 1078 | $name .= $body{$i++}; |
| 1079 | if( $name <> '' ) { |
| 1080 | $ret .= "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=" . |
| 1081 | urlencode( $message->header->mailbox ) . |
| 1082 | "&passed_ent_id=" . find_ent_id( $name, $message ); |
| 1083 | if( $body{$k} == '"' ) |
| 1084 | $ret .= '" '; |
| 1085 | else |
| 1086 | $ret .= ' '; |
| 1087 | } |
| 1088 | if( $body{$i} == '>' ) |
| 1089 | $i -= 1; |
| 1090 | } |
| 1091 | break; |
| 1092 | case ' on': |
| 1093 | case "\non": |
| 1094 | case "\ron": |
| 1095 | case "\ton": |
| 1096 | $ret .= ' no'; |
| 1097 | $i += 2; |
| 1098 | break; |
| 1099 | case 'pt:': |
| 1100 | if( strcasecmp( $body{$i-4}.$body{$i-3}.$body{$i-2}.$body{$i-1}.$body{$i}.$body{$i+1}.$body{$i+2}, 'script:') == 0 ) { |
| 1101 | $ret .= '_no/'; |
| 1102 | } else { |
| 1103 | $ret .= $etg; |
| 1104 | } |
| 1105 | $i += 2; |
| 1106 | break; |
| 1107 | default: |
| 1108 | $ret .= $body{$i}; |
| 1109 | } |
| 1110 | $i++; |
| 1111 | } |
| 1112 | return( $ret ); |
| 1113 | } |
| 1114 | |
| 1115 | |
| 1116 | /* This function trys to locate the entity_id of a specific mime element */ |
| 1117 | |
| 1118 | function find_ent_id( $id, $message ) { |
| 1119 | |
| 1120 | $ret = ''; |
| 1121 | for ($i=0; $ret == '' && $i < count($message->entities); $i++) { |
| 1122 | |
| 1123 | if( $message->entities[$i]->header->entity_id == '' ) { |
| 1124 | $ret = find_ent_id( $id, $message->entities[$i] ); |
| 1125 | } else { |
| 1126 | if( strcasecmp( $message->entities[$i]->header->id, $id ) == 0 ) |
| 1127 | $ret = $message->entities[$i]->header->entity_id; |
| 1128 | } |
| 1129 | |
| 1130 | } |
| 1131 | |
| 1132 | return( $ret ); |
| 1133 | |
| 1134 | } |
| 5487a8d0 |
1135 | ?> |
projects / squirrelmail.git / blame