59177427 |
1 | <?php |
bccadd02 |
2 | |
35586184 |
3 | /** |
a6fd80f5 |
4 | * imap_general.php |
35586184 |
5 | * |
15e6162e |
6 | * Copyright (c) 1999-2002 The SquirrelMail Project Team |
7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
35586184 |
8 | * |
15e6162e |
9 | * This implements all functions that do general imap functions. |
35586184 |
10 | * |
15e6162e |
11 | * $Id$ |
35586184 |
12 | */ |
13 | |
9c737111 |
14 | require_once('../functions/page_header.php'); |
15 | require_once('../functions/display_messages.php'); |
35586184 |
16 | |
17 | /** |
18 | * Unique SessionId |
19 | * |
20 | * Sets an unique session id in order to avoid simultanous sessions crash. |
21 | * |
7e235a1a |
22 | * @return string a 4 chars unique string |
35586184 |
23 | */ |
7350889b |
24 | |
41600f7d |
25 | global $sqimap_session_id; |
26 | $sqimap_session_id = 1; |
27 | function sqimap_session_id() { |
71257f8b |
28 | |
41600f7d |
29 | global $data_dir, $username, $sqimap_session_id; |
7350889b |
30 | |
41600f7d |
31 | return( sprintf("A%03d", $sqimap_session_id++) ); |
9c737111 |
32 | } |
33 | |
42a07ac1 |
34 | /****************************************************************************** |
35 | ** Both send a command and accept the result from the command. This is |
36 | ** to allow proper session number handling. |
37 | ******************************************************************************/ |
38 | |
1c72b151 |
39 | function sqimap_run_command_list ($imap_stream, $query, $handle_errors, &$response, &$message) { |
41600f7d |
40 | $sid = sqimap_session_id(); |
41 | fputs ($imap_stream, $sid . ' ' . $query . "\r\n"); |
b3837b0f |
42 | $read = sqimap_read_data_list ($imap_stream, $sid, $handle_errors, $response, $message, $query ); |
1c72b151 |
43 | return $read; |
44 | } |
45 | |
42a07ac1 |
46 | function sqimap_run_command ($imap_stream, $query, $handle_errors, &$response, &$message) { |
41600f7d |
47 | $sid = sqimap_session_id(); |
48 | fputs ($imap_stream, $sid . ' ' . $query . "\r\n"); |
b3837b0f |
49 | $read = sqimap_read_data ($imap_stream, $sid, $handle_errors, $response, $message, $query); |
42a07ac1 |
50 | return $read; |
51 | } |
52 | |
9c737111 |
53 | |
bee165ef |
54 | /* |
55 | * Reads the output from the IMAP stream. If handle_errors is set to true, |
56 | * this will also handle all errors that are received. If it is not set, |
57 | * the errors will be sent back through $response and $message |
58 | */ |
9c737111 |
59 | |
60 | function sqimap_read_data_list ($imap_stream, $pre, $handle_errors, |
b3837b0f |
61 | &$response, &$message, $query = '') { |
9c737111 |
62 | global $color, $squirrelmail_language; |
bee165ef |
63 | |
9c737111 |
64 | $read = ''; |
bee165ef |
65 | $bufsize = 9096; |
9c737111 |
66 | $resultlist = array(); |
bee165ef |
67 | |
9c737111 |
68 | $more_msgs = true; |
69 | while ($more_msgs) { |
70 | $data = array(); |
71 | $total_size = 0; |
bee165ef |
72 | |
9c737111 |
73 | while (strpos($read, "\n") === false) { |
bee165ef |
74 | if(!($read .= fgets($imap_stream, $bufsize))) { |
8084e2cb |
75 | break; |
76 | } |
9c737111 |
77 | } |
bee165ef |
78 | |
79 | // if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) { |
80 | if (preg_match('/^\* [0-9]+ FETCH.*\{([0-9]+)\}/', $read, $regs)) { |
85fc999e |
81 | $size = $regs[1]; |
82 | //} else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) { |
83 | } else if (preg_match('/^\* [0-9]+ FETCH/', $read, $regs)) { |
91f68e94 |
84 | // Sizeless response, probably single-line |
55412053 |
85 | $size = -1; |
91f68e94 |
86 | $data[] = $read; |
bee165ef |
87 | $read = fgets($imap_stream, $bufsize); |
9c737111 |
88 | } else { |
55412053 |
89 | $size = -1; |
9c737111 |
90 | } |
91 | while (1) { |
91f68e94 |
92 | while (strpos($read, "\n") === false) { |
bee165ef |
93 | if(!($read .= fgets($imap_stream, $bufsize))) { |
8084e2cb |
94 | break; |
95 | } |
91f68e94 |
96 | } |
91f68e94 |
97 | // If we know the size, no need to look at the end parameters |
98 | if ($size > 0) { |
9c737111 |
99 | if ($total_size == $size) { |
100 | // We've reached the end of this 'message', switch to the next one. |
101 | $data[] = $read; |
102 | break; |
103 | } else if ($total_size > $size) { |
104 | $difference = $total_size - $size; |
105 | $total_size = $total_size - strlen($read); |
106 | $data[] = substr ($read, 0, strlen($read)-$difference); |
107 | $read = substr ($read, strlen($read)-$difference, strlen($read)); |
108 | break; |
109 | } else { |
110 | $data[] = $read; |
bee165ef |
111 | $read = fgets($imap_stream, $bufsize); |
9c737111 |
112 | while (strpos($read, "\n") === false) { |
bee165ef |
113 | $read .= fgets($imap_stream, $bufsize); |
9c737111 |
114 | } |
115 | } |
116 | $total_size += strlen($read); |
4f5c1bcb |
117 | } else { |
bee165ef |
118 | if (preg_match("/^$pre (OK|BAD|NO)(.*)/", $read, $regs) || |
119 | // if (ereg("^$pre (OK|BAD|NO)(.*)", $read, $regs) || |
85fc999e |
120 | (($size == -1) && preg_match('/^\* [0-9]+ FETCH.*/', $read, $regs))) { |
9c737111 |
121 | break; |
85fc999e |
122 | } else if ( preg_match('/^\* OK \[PARSE.*/', $read, $regs ) ) { |
123 | while ( preg_match('/^\* OK \[PARSE.*/', $read, $regs ) ) { |
124 | $read = fgets($imap_stream, $bufsize); |
125 | } |
bee165ef |
126 | /* |
127 | This block has been added in order to avoid the problem |
128 | caused by the * OK [PARSE] Missing parameter answer |
129 | Please, replace it with a better parsing if you know how. |
85fc999e |
130 | This block has been updated by |
131 | Seth E. Randall <sethr@missoulafcu.org>. Once we see |
132 | one OK [PARSE line, we just go through and keep |
133 | tossing them out until we get something different. |
bee165ef |
134 | */ |
bee165ef |
135 | $data[] = $read; |
136 | $read = fgets ($imap_stream, $bufsize); |
85fc999e |
137 | } else if (preg_match('/^\* BYE \[ALERT\](.*)/', $read, $regs)) { |
0dbccd34 |
138 | /* |
139 | It seems that the IMAP server has coughed a lung up |
140 | and hung up the connection. Print any info we have |
141 | and abort. |
142 | */ |
143 | echo _("Please contact your system administrator and report the following error:") . "<br>\n"; |
144 | echo "$regs[1]"; |
145 | exit(0); |
9c737111 |
146 | } else { |
147 | $data[] = $read; |
bee165ef |
148 | $read = fgets ($imap_stream, $bufsize); |
9c737111 |
149 | } |
4f5c1bcb |
150 | } |
9c737111 |
151 | } |
bee165ef |
152 | |
153 | // while (($more_msgs = !ereg("^$pre (OK|BAD|NO)(.*)$", $read, $regs)) && |
154 | // !ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) { |
155 | while (($more_msgs = !preg_match("/^$pre (OK|BAD|NO)(.*)$/", $read, $regs)) && |
156 | !preg_match('/^\* [0-9]+ FETCH.*/', $read, $regs)) { |
157 | $read = fgets($imap_stream, $bufsize); |
9c737111 |
158 | } |
159 | $resultlist[] = $data; |
160 | } |
bee165ef |
161 | |
9c737111 |
162 | $response = $regs[1]; |
163 | $message = trim($regs[2]); |
bee165ef |
164 | |
165 | if ($handle_errors == false) { |
166 | return( $resultlist ); |
167 | } else if ($response == 'NO') { |
9c737111 |
168 | // ignore this error from m$ exchange, it is not fatal (aka bug) |
169 | if (strstr($message, 'command resulted in') === false) { |
441f2d33 |
170 | set_up_language($squirrelmail_language); |
9c737111 |
171 | echo "<br><b><font color=$color[2]>\n" . |
172 | _("ERROR : Could not complete request.") . |
173 | "</b><br>\n" . |
b3837b0f |
174 | _("Query:") . |
175 | $query . '<br>' . |
9c737111 |
176 | _("Reason Given: ") . |
177 | $message . "</font><br>\n"; |
052e0c26 |
178 | exit; |
9c737111 |
179 | } |
180 | } else if ($response == 'BAD') { |
181 | set_up_language($squirrelmail_language); |
182 | echo "<br><b><font color=$color[2]>\n" . |
183 | _("ERROR : Bad or malformed request.") . |
184 | "</b><br>\n" . |
b3837b0f |
185 | _("Query:") . |
186 | $query . '<br>' . |
9c737111 |
187 | _("Server responded: ") . |
188 | $message . "</font><br>\n"; |
189 | exit; |
bee165ef |
190 | } else { |
191 | return( $resultlist ); |
9c737111 |
192 | } |
9c737111 |
193 | } |
194 | |
b3837b0f |
195 | function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message, $query = '') { |
9c737111 |
196 | |
b3837b0f |
197 | $res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message, $query); |
9c737111 |
198 | return $res[0]; |
bee165ef |
199 | |
9c737111 |
200 | } |
201 | |
202 | /****************************************************************************** |
203 | ** Logs the user into the imap server. If $hide is set, no error messages |
204 | ** will be displayed. This function returns the imap connection handle. |
205 | ******************************************************************************/ |
206 | function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) { |
207 | |
208 | global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad; |
85fc999e |
209 | |
9c737111 |
210 | $imap_stream = fsockopen ( $imap_server_address, $imap_port, |
211 | $error_number, $error_string, 15); |
212 | if ( !$imap_stream ) { |
213 | return FALSE; |
214 | } |
215 | $server_info = fgets ($imap_stream, 1024); |
85fc999e |
216 | |
9c737111 |
217 | // Decrypt the password |
218 | $password = OneTimePadDecrypt($password, $onetimepad); |
85fc999e |
219 | |
9c737111 |
220 | /** Do some error correction **/ |
221 | if (!$imap_stream) { |
222 | if (!$hide) { |
441f2d33 |
223 | set_up_language($squirrelmail_language, true); |
1b187352 |
224 | printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address); |
052e0c26 |
225 | echo "$error_number : $error_string<br>\r\n"; |
9c737111 |
226 | } |
227 | exit; |
228 | } |
052e0c26 |
229 | |
1c72b151 |
230 | $query = 'LOGIN "' . quoteIMAP($username) . '" "' . quoteIMAP($password) . '"'; |
231 | $read = sqimap_run_command ($imap_stream, $query, false, $response, $message); |
052e0c26 |
232 | |
9c737111 |
233 | /** If the connection was not successful, lets see why **/ |
234 | if ($response != 'OK') { |
235 | if (!$hide) { |
74424a43 |
236 | if ($response != 'NO') { |
9c737111 |
237 | // "BAD" and anything else gets reported here. |
238 | set_up_language($squirrelmail_language, true); |
239 | if ($response == 'BAD') { |
3d2504a1 |
240 | printf (_("Bad request: %s")."<br>\r\n", $message); |
9c737111 |
241 | } else { |
3d2504a1 |
242 | printf (_("Unknown error: %s") . "<br>\n", $message); |
9c737111 |
243 | } |
244 | echo '<br>' . _("Read data:") . "<br>\n"; |
245 | if (is_array($read)) { |
246 | foreach ($read as $line) { |
247 | echo htmlspecialchars($line) . "<br>\n"; |
248 | } |
249 | } |
250 | exit; |
165e24a7 |
251 | } else { |
1c72b151 |
252 | /* If the user does not log in with the correct |
253 | * username and password it is not possible to get the |
254 | * correct locale from the user's preferences. |
255 | * Therefore, apply the same hack as on the login |
256 | * screen. |
bee165ef |
257 | */ |
85fc999e |
258 | |
1c72b151 |
259 | /* $squirrelmail_language is set by a cookie when |
260 | * the user selects language and logs out |
bee165ef |
261 | */ |
85fc999e |
262 | |
9c737111 |
263 | set_up_language($squirrelmail_language, true); |
85fc999e |
264 | |
9c737111 |
265 | displayHtmlHeader( _("Unknown user or password incorrect.") ); |
266 | echo "<body bgcolor=\"#ffffff\">\n"; |
267 | error_username_password_incorrect(); |
268 | session_destroy(); |
269 | exit; |
052e0c26 |
270 | } |
9c737111 |
271 | } else { |
052e0c26 |
272 | exit; |
9c737111 |
273 | } |
274 | } |
85fc999e |
275 | |
9c737111 |
276 | return $imap_stream; |
277 | } |
f1e6f580 |
278 | |
9c737111 |
279 | /* |
280 | * Simply logs out the imap session |
281 | */ |
282 | function sqimap_logout ($imap_stream) { |
1c72b151 |
283 | /* Logout is not valid until the server returns 'BYE' */ |
284 | sqimap_run_command($imap_stream, 'LOGOUT', false, $response, $message); |
9c737111 |
285 | } |
286 | |
287 | function sqimap_capability($imap_stream, $capability) { |
288 | global $sqimap_capabilities; |
85fc999e |
289 | |
9c737111 |
290 | if (!is_array($sqimap_capabilities)) { |
1c72b151 |
291 | $read = sqimap_run_command($imap_stream, 'CAPABILITY', true, $a, $b); |
292 | |
9c737111 |
293 | $c = explode(' ', $read[0]); |
294 | for ($i=2; $i < count($c); $i++) { |
295 | $cap_list = explode('=', $c[$i]); |
296 | if (isset($cap_list[1])) |
297 | $sqimap_capabilities[$cap_list[0]] = $cap_list[1]; |
298 | else |
299 | $sqimap_capabilities[$cap_list[0]] = TRUE; |
f1e6f580 |
300 | } |
9c737111 |
301 | } |
302 | if (! isset($sqimap_capabilities[$capability])) { |
f1e6f580 |
303 | return false; |
9c737111 |
304 | } else { |
f1e6f580 |
305 | return $sqimap_capabilities[$capability]; |
306 | } |
9c737111 |
307 | } |
308 | |
309 | /****************************************************************************** |
310 | ** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test... |
311 | ******************************************************************************/ |
312 | function sqimap_get_delimiter ($imap_stream = false) { |
313 | |
314 | global $sqimap_delimiter; |
315 | global $optional_delimiter; |
85fc999e |
316 | |
9c737111 |
317 | /* Use configured delimiter if set */ |
318 | if((!empty($optional_delimiter)) && $optional_delimiter != 'detect') { |
319 | return $optional_delimiter; |
320 | } |
85fc999e |
321 | |
9c737111 |
322 | /* Do some caching here */ |
323 | if (!$sqimap_delimiter) { |
324 | if (sqimap_capability($imap_stream, 'NAMESPACE')) { |
f1e6f580 |
325 | /* According to something that I can't find, this is supposed to work on all systems |
326 | OS: This won't work in Courier IMAP. |
327 | OS: According to rfc2342 response from NAMESPACE command is: |
328 | OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES) |
329 | OS: We want to lookup all personal NAMESPACES... |
330 | */ |
1c72b151 |
331 | $read = sqimap_run_command($imap_stream, 'NAMESPACE', true, $a, $b); |
f1e6f580 |
332 | if (eregi('\\* NAMESPACE +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL)', $read[0], $data)) { |
9c737111 |
333 | if (eregi('^\\( *\\((.*)\\) *\\)', $data[1], $data2)) { |
f1e6f580 |
334 | $pn = $data2[1]; |
9c737111 |
335 | } |
f1e6f580 |
336 | $pna = explode(')(', $pn); |
9c737111 |
337 | while (list($k, $v) = each($pna)) { |
862ff2d3 |
338 | $lst = explode('"', $v); |
339 | if (isset($lst[3])) { |
340 | $pn[$lst[1]] = $lst[3]; |
341 | } else { |
74424a43 |
342 | $pn[$lst[1]] = ''; |
862ff2d3 |
343 | } |
f1e6f580 |
344 | } |
345 | } |
346 | $sqimap_delimiter = $pn[0]; |
347 | } else { |
348 | fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n"); |
349 | $read = sqimap_read_data($imap_stream, '.', true, $a, $b); |
350 | $quote_position = strpos ($read[0], '"'); |
351 | $sqimap_delimiter = substr ($read[0], $quote_position+1, 1); |
352 | } |
353 | } |
354 | return $sqimap_delimiter; |
9c737111 |
355 | } |
052e0c26 |
356 | |
357 | |
9c737111 |
358 | /* |
359 | * Gets the number of messages in the current mailbox. |
360 | */ |
361 | function sqimap_get_num_messages ($imap_stream, $mailbox) { |
362 | |
41600f7d |
363 | $read_ary = sqimap_run_command ($imap_stream, "EXAMINE \"$mailbox\"", true, $result, $message); |
9c737111 |
364 | for ($i = 0; $i < count($read_ary); $i++) { |
85fc999e |
365 | if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) { |
366 | return $regs[1]; |
367 | } |
9c737111 |
368 | } |
369 | return sprintf( "BUG! Couldn't get number of messages in %s!", $mailbox ); |
85fc999e |
370 | |
9c737111 |
371 | } |
372 | |
373 | |
374 | /* |
375 | * Returns a displayable email address |
376 | */ |
377 | function sqimap_find_email ($string) { |
378 | /** Luke Ehresman <lehresma@css.tayloru.edu> |
379 | ** <lehresma@css.tayloru.edu> |
380 | ** lehresma@css.tayloru.edu |
381 | ** |
382 | ** What about |
383 | ** lehresma@css.tayloru.edu (Luke Ehresman) |
384 | **/ |
85fc999e |
385 | |
9c737111 |
386 | if (ereg("<([^>]+)>", $string, $regs)) { |
387 | $string = $regs[1]; |
388 | } |
389 | return trim($string); |
390 | } |
391 | |
392 | |
393 | /* |
6282af09 |
394 | * Takes the From: field, and creates a displayable name. |
395 | * Luke Ehresman <lkehresman@yahoo.com> |
396 | * "Luke Ehresman" <lkehresman@yahoo.com> |
397 | * lkehresman@yahoo.com (Luke Ehresman) |
027bbd2b |
398 | * becomes: Luke Ehresman |
6282af09 |
399 | * <lkehresman@yahoo.com> |
400 | * becomes: lkehresman@yahoo.com |
401 | */ |
9c737111 |
402 | function sqimap_find_displayable_name ($string) { |
6282af09 |
403 | $string = trim($string); |
2f7bda0a |
404 | |
7e3de682 |
405 | if ( ereg('^(.+)<.*>', $string, $regs) ) { |
092d4f2c |
406 | $orig_string = $string; |
2f7bda0a |
407 | $string = str_replace ('"', '', $regs[1] ); |
092d4f2c |
408 | if (trim($string) == '') { |
409 | $string = sqimap_find_email($orig_string); |
410 | } |
33565ec4 |
411 | if( $string == '' || $string == ' ' ){ |
412 | $string = ' '; |
413 | } |
7e3de682 |
414 | } |
415 | elseif ( ereg('\((.*)\)', $string, $regs) ) { |
9e9c63e4 |
416 | if( ( $regs[1] == '' ) || ( $regs[1] == ' ' ) ){ |
417 | if ( ereg('^(.+) \(', $string, $regs) ) { |
418 | $string = ereg_replace( ' \(\)$', '', $string ); |
419 | } else { |
420 | $string = ' '; |
421 | } |
422 | } else { |
423 | $string = $regs[1]; |
424 | } |
7e3de682 |
425 | } |
426 | else { |
2f7bda0a |
427 | $string = str_replace ('"', '', sqimap_find_email($string)); |
9c737111 |
428 | } |
9c737111 |
429 | |
7e3de682 |
430 | return trim($string); |
431 | } |
85fc999e |
432 | |
9c737111 |
433 | /* |
434 | * Returns the number of unseen messages in this folder |
435 | */ |
436 | function sqimap_unseen_messages ($imap_stream, $mailbox) { |
437 | //fputs ($imap_stream, sqimap_session_id() . " SEARCH UNSEEN NOT DELETED\r\n"); |
1a16af11 |
438 | $read_ary = sqimap_run_command ($imap_stream, "STATUS \"$mailbox\" (UNSEEN)", true, $result, $message); |
ea7ff111 |
439 | $i = 0; |
440 | while (isset($read_ary[$i])) { |
441 | if (ereg("UNSEEN ([0-9]+)", $read_ary[$i], $regs)) { |
442 | break; |
443 | } |
444 | $i++; |
445 | } |
9c737111 |
446 | return $regs[1]; |
447 | } |
448 | |
449 | |
450 | /* |
451 | * Saves a message to a given folder -- used for saving sent messages |
452 | */ |
453 | function sqimap_append ($imap_stream, $sent_folder, $length) { |
454 | fputs ($imap_stream, sqimap_session_id() . " APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n"); |
85fc999e |
455 | $tmp = fgets ($imap_stream, 1024); |
9c737111 |
456 | } |
457 | |
458 | function sqimap_append_done ($imap_stream) { |
459 | fputs ($imap_stream, "\r\n"); |
460 | $tmp = fgets ($imap_stream, 1024); |
461 | } |
85fc999e |
462 | |
15e6162e |
463 | ?> |