59177427 |
1 | <?php |
052e0c26 |
2 | /** |
3 | ** imap.php |
4 | ** |
5 | ** This implements all functions that do general imap functions. |
245a6892 |
6 | ** |
7 | ** $Id$ |
052e0c26 |
8 | **/ |
9 | |
f435778e |
10 | if (defined ('imap_general_php')) |
11 | return; |
12 | define ('imap_general_php', true); |
13 | |
14 | global $imap_general_debug; |
a3db804c |
15 | $imap_general_debug = false; |
a3db804c |
16 | |
052e0c26 |
17 | /****************************************************************************** |
18 | ** Reads the output from the IMAP stream. If handle_errors is set to true, |
19 | ** this will also handle all errors that are received. If it is not set, |
20 | ** the errors will be sent back through $response and $message |
21 | ******************************************************************************/ |
a3432f47 |
22 | |
91f68e94 |
23 | function sqimap_read_data_list ($imap_stream, $pre, $handle_errors, |
24 | &$response, &$message) { |
25 | global $color, $squirrelmail_language, $imap_general_debug; |
245a6892 |
26 | |
91f68e94 |
27 | $read = ""; |
28 | $resultlist = array(); |
245a6892 |
29 | |
91f68e94 |
30 | $more_msgs = true; |
31 | while ($more_msgs) { |
32 | $data = array(); |
33 | $total_size = 0; |
d9ca5b40 |
34 | while (strpos($read, "\n") === false) { |
35 | $read .= fgets($imap_stream, 9096); |
36 | } |
4f5c1bcb |
37 | |
91f68e94 |
38 | if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) { |
39 | $size = $regs[1]; |
40 | } else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) { |
41 | // Sizeless response, probably single-line |
42 | // For debugging purposes |
43 | if ($imap_general_debug) { |
44 | echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n"; |
45 | flush(); |
d9ca5b40 |
46 | } |
91f68e94 |
47 | $size = 0; |
48 | $data[] = $read; |
49 | $read = fgets($imap_stream, 9096); |
d9ca5b40 |
50 | } else { |
91f68e94 |
51 | $size = 0; |
52 | } |
53 | while (1) { |
54 | while (strpos($read, "\n") === false) { |
55 | $read .= fgets($imap_stream, 9096); |
56 | } |
57 | // For debugging purposes |
58 | if ($imap_general_debug) { |
59 | echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n"; |
60 | flush(); |
61 | } |
62 | // If we know the size, no need to look at the end parameters |
63 | if ($size > 0) { |
64 | if ($total_size == $size) { |
65 | // We've reached the end of this 'message', switch to the next one. |
66 | $data[] = $read; |
37e24380 |
67 | break; |
91f68e94 |
68 | } else if ($total_size > $size) { |
69 | $difference = $total_size - $size; |
70 | $total_size = $total_size - strlen($read); |
71 | $data[] = substr ($read, 0, strlen($read)-$difference); |
72 | $read = substr ($read, strlen($read)-$difference, strlen($read)); |
73 | break; |
74 | } else { |
75 | $data[] = $read; |
76 | $read = fgets($imap_stream, 9096); |
3fac2aa9 |
77 | while (strpos($read, "\n") === false) { |
78 | $read .= fgets($imap_stream, 9096); |
79 | } |
91f68e94 |
80 | } |
81 | $total_size += strlen($read); |
4f5c1bcb |
82 | } else { |
91f68e94 |
83 | if (ereg("^$pre (OK|BAD|NO)(.*)", $read, $regs) || |
84 | ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) { |
85 | break; |
86 | } else { |
87 | $data[] = $read; |
88 | $read = fgets ($imap_stream, 9096); |
89 | } |
4f5c1bcb |
90 | } |
d9ca5b40 |
91 | } |
a3db804c |
92 | |
91f68e94 |
93 | while (($more_msgs = !ereg("^$pre (OK|BAD|NO)(.*)$", $read, $regs)) && |
94 | !ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) { |
95 | $read = fgets($imap_stream, 9096); |
96 | } |
97 | $resultlist[] = $data; |
98 | } |
3d2504a1 |
99 | $response = $regs[1]; |
100 | $message = trim($regs[2]); |
101 | |
74424a43 |
102 | if ($imap_general_debug) echo '--<br>'; |
052e0c26 |
103 | |
f358f099 |
104 | if ($handle_errors == false) |
91f68e94 |
105 | return $resultlist; |
d9ca5b40 |
106 | |
74424a43 |
107 | if ($response == 'NO') { |
f358f099 |
108 | // ignore this error from m$ exchange, it is not fatal (aka bug) |
8e8ebd27 |
109 | if (strstr($message, 'command resulted in') === false) { |
441f2d33 |
110 | set_up_language($squirrelmail_language); |
04632dbc |
111 | echo "<br><b><font color=$color[2]>\n"; |
f358f099 |
112 | echo _("ERROR : Could not complete request."); |
04632dbc |
113 | echo "</b><br>\n"; |
f358f099 |
114 | echo _("Reason Given: "); |
3d2504a1 |
115 | echo $message . "</font><br>\n"; |
052e0c26 |
116 | exit; |
117 | } |
74424a43 |
118 | } else if ($response == 'BAD') { |
f358f099 |
119 | set_up_language($squirrelmail_language); |
120 | echo "<br><b><font color=$color[2]>\n"; |
121 | echo _("ERROR : Bad or malformed request."); |
122 | echo "</b><br>\n"; |
123 | echo _("Server responded: "); |
124 | echo $message . "</font><br>\n"; |
125 | exit; |
052e0c26 |
126 | } |
91f68e94 |
127 | return $resultlist; |
128 | } |
129 | |
130 | function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) { |
131 | $res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message); |
132 | return $res[0]; |
052e0c26 |
133 | } |
134 | |
052e0c26 |
135 | /****************************************************************************** |
136 | ** Logs the user into the imap server. If $hide is set, no error messages |
137 | ** will be displayed. This function returns the imap connection handle. |
138 | ******************************************************************************/ |
139 | function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) { |
bc104ef3 |
140 | global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad; |
1b187352 |
141 | |
342c46bd |
142 | $imap_stream = fsockopen ($imap_server_address, $imap_port, |
090595e1 |
143 | $error_number, $error_string, 15); |
052e0c26 |
144 | $server_info = fgets ($imap_stream, 1024); |
145 | |
52eefafc |
146 | // Decrypt the password |
bc104ef3 |
147 | $password = OneTimePadDecrypt($password, $onetimepad); |
52eefafc |
148 | |
052e0c26 |
149 | /** Do some error correction **/ |
150 | if (!$imap_stream) { |
151 | if (!$hide) { |
441f2d33 |
152 | set_up_language($squirrelmail_language, true); |
1b187352 |
153 | printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address); |
052e0c26 |
154 | echo "$error_number : $error_string<br>\r\n"; |
155 | } |
156 | exit; |
157 | } |
158 | |
704db5b2 |
159 | fputs ($imap_stream, "a001 LOGIN \"" . quoteIMAP($username) . |
160 | '" "' . quoteIMAP($password) . "\"\r\n"); |
74424a43 |
161 | $read = sqimap_read_data ($imap_stream, 'a001', false, $response, $message); |
052e0c26 |
162 | |
163 | /** If the connection was not successful, lets see why **/ |
3d2504a1 |
164 | if ($response != "OK") { |
052e0c26 |
165 | if (!$hide) { |
74424a43 |
166 | if ($response != 'NO') { |
3d2504a1 |
167 | // "BAD" and anything else gets reported here. |
441f2d33 |
168 | set_up_language($squirrelmail_language, true); |
74424a43 |
169 | if ($response == 'BAD') |
3d2504a1 |
170 | printf (_("Bad request: %s")."<br>\r\n", $message); |
171 | else |
172 | printf (_("Unknown error: %s") . "<br>\n", $message); |
74424a43 |
173 | echo '<br>'; |
3d2504a1 |
174 | echo _("Read data:") . "<br>\n"; |
ec0b7dbd |
175 | if (is_array($read)) |
176 | { |
177 | foreach ($read as $line) |
178 | { |
179 | echo htmlspecialchars($line) . "<br>\n"; |
180 | } |
3d2504a1 |
181 | } |
052e0c26 |
182 | exit; |
165e24a7 |
183 | } else { |
1b187352 |
184 | // If the user does not log in with the correct |
185 | // username and password it is not possible to get the |
186 | // correct locale from the user's preferences. |
187 | // Therefore, apply the same hack as on the login |
188 | // screen. |
189 | |
190 | // $squirrelmail_language is set by a cookie when |
191 | // the user selects language and logs out |
192 | |
441f2d33 |
193 | set_up_language($squirrelmail_language, true); |
1b187352 |
194 | |
052e0c26 |
195 | ?> |
196 | <html> |
74424a43 |
197 | <body bgcolor="ffffff"> |
052e0c26 |
198 | <br> |
199 | <center> |
74424a43 |
200 | <table width="70%" noborder bgcolor="ffffff" align="center"> |
052e0c26 |
201 | <tr> |
74424a43 |
202 | <td bgcolor="dcdcdc"> |
203 | <font color="cc0000"> |
052e0c26 |
204 | <center> |
59177427 |
205 | <?php echo _("ERROR") ?> |
052e0c26 |
206 | </center> |
207 | </font> |
208 | </td> |
209 | </tr> |
210 | <tr> |
211 | <td> |
212 | <center> |
59177427 |
213 | <?php echo _("Unknown user or password incorrect.") ?><br> |
5630c7ec |
214 | <a href="login.php" target="_top"><?php echo _("Click here to try again") ?></a> |
052e0c26 |
215 | </center> |
216 | </td> |
217 | </tr> |
218 | </table> |
219 | </center> |
220 | </body> |
221 | </html> |
59177427 |
222 | <?php |
052e0c26 |
223 | session_destroy(); |
224 | exit; |
052e0c26 |
225 | } |
226 | } else { |
227 | exit; |
228 | } |
229 | } |
230 | |
231 | return $imap_stream; |
232 | } |
233 | |
234 | |
235 | |
236 | |
237 | /****************************************************************************** |
238 | ** Simply logs out the imap session |
239 | ******************************************************************************/ |
240 | function sqimap_logout ($imap_stream) { |
241 | fputs ($imap_stream, "a001 LOGOUT\r\n"); |
242 | } |
243 | |
f435778e |
244 | function sqimap_capability($imap_stream, $capability) { |
a3db804c |
245 | global $sqimap_capabilities; |
246 | global $imap_general_debug; |
052e0c26 |
247 | |
a3db804c |
248 | if (!is_array($sqimap_capabilities)) { |
249 | fputs ($imap_stream, "a001 CAPABILITY\r\n"); |
74424a43 |
250 | $read = sqimap_read_data($imap_stream, 'a001', true, $a, $b); |
a3db804c |
251 | |
252 | $c = explode(' ', $read[0]); |
253 | for ($i=2; $i < count($c); $i++) { |
245a6892 |
254 | $cap_list = explode('=', $c[$i]); |
255 | if (isset($cap_list[1])) |
256 | $sqimap_capabilities[$cap_list[0]] = $cap_list[1]; |
257 | else |
258 | $sqimap_capabilities[$cap_list[0]] = TRUE; |
a3db804c |
259 | } |
260 | } |
bb7bf119 |
261 | if (! isset($sqimap_capabilities[$capability])) |
262 | return false; |
a3db804c |
263 | return $sqimap_capabilities[$capability]; |
264 | } |
052e0c26 |
265 | |
266 | /****************************************************************************** |
267 | ** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test... |
268 | ******************************************************************************/ |
f435778e |
269 | function sqimap_get_delimiter ($imap_stream = false) { |
270 | global $imap_general_debug; |
271 | global $sqimap_delimiter; |
272 | global $optional_delimiter; |
f6941f00 |
273 | |
f435778e |
274 | /* Use configured delimiter if set */ |
275 | if((!empty($optional_delimiter)) && $optional_delimiter != "detect") |
276 | return $optional_delimiter; |
a3db804c |
277 | |
f435778e |
278 | /* Do some caching here */ |
279 | if (!$sqimap_delimiter) { |
a3db804c |
280 | if (sqimap_capability($imap_stream, "NAMESPACE")) { |
281 | /* According to something that I can't find, this is supposed to work on all systems |
282 | OS: This won't work in Courier IMAP. |
283 | OS: According to rfc2342 response from NAMESPACE command is: |
284 | OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES) |
285 | OS: We want to lookup all personal NAMESPACES... |
286 | */ |
287 | fputs ($imap_stream, "a001 NAMESPACE\r\n"); |
74424a43 |
288 | $read = sqimap_read_data($imap_stream, 'a001', true, $a, $b); |
8e8ebd27 |
289 | if (eregi('\\* NAMESPACE +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL)', $read[0], $data)) { |
290 | if (eregi('^\\( *\\((.*)\\) *\\)', $data[1], $data2)) |
a3db804c |
291 | $pn = $data2[1]; |
292 | $pna = explode(')(', $pn); |
293 | while (list($k, $v) = each($pna)) |
294 | { |
862ff2d3 |
295 | $lst = explode('"', $v); |
296 | if (isset($lst[3])) { |
297 | $pn[$lst[1]] = $lst[3]; |
298 | } else { |
74424a43 |
299 | $pn[$lst[1]] = ''; |
862ff2d3 |
300 | } |
a3db804c |
301 | } |
a3db804c |
302 | } |
303 | $sqimap_delimiter = $pn[0]; |
40ba4d36 |
304 | } else { |
a3db804c |
305 | fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n"); |
74424a43 |
306 | $read = sqimap_read_data($imap_stream, '.', true, $a, $b); |
307 | $quote_position = strpos ($read[0], '"'); |
a3db804c |
308 | $sqimap_delimiter = substr ($read[0], $quote_position+1, 1); |
40ba4d36 |
309 | } |
a3db804c |
310 | } |
311 | return $sqimap_delimiter; |
f435778e |
312 | } |
052e0c26 |
313 | |
314 | |
315 | /****************************************************************************** |
316 | ** Gets the number of messages in the current mailbox. |
317 | ******************************************************************************/ |
318 | function sqimap_get_num_messages ($imap_stream, $mailbox) { |
319 | fputs ($imap_stream, "a001 EXAMINE \"$mailbox\"\r\n"); |
74424a43 |
320 | $read_ary = sqimap_read_data ($imap_stream, 'a001', true, $result, $message); |
052e0c26 |
321 | for ($i = 0; $i < count($read_ary); $i++) { |
441f2d33 |
322 | if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) { |
323 | return $regs[1]; |
052e0c26 |
324 | } |
325 | } |
441f2d33 |
326 | return "BUG! Couldn't get number of messages in $mailbox!"; |
052e0c26 |
327 | } |
328 | |
329 | |
330 | /****************************************************************************** |
331 | ** Returns a displayable email address |
332 | ******************************************************************************/ |
333 | function sqimap_find_email ($string) { |
334 | /** Luke Ehresman <lehresma@css.tayloru.edu> |
335 | ** <lehresma@css.tayloru.edu> |
336 | ** lehresma@css.tayloru.edu |
1d2ce1c3 |
337 | ** |
338 | ** What about |
339 | ** lehresma@css.tayloru.edu (Luke Ehresman) |
052e0c26 |
340 | **/ |
341 | |
441f2d33 |
342 | if (ereg("<([^>]+)>", $string, $regs)) { |
343 | $string = $regs[1]; |
052e0c26 |
344 | } |
345 | return trim($string); |
346 | } |
347 | |
348 | |
349 | /****************************************************************************** |
350 | ** Takes the From: field, and creates a displayable name. |
351 | ** Luke Ehresman <lkehresman@yahoo.com> |
352 | ** becomes: Luke Ehresman |
353 | ** <lkehresman@yahoo.com> |
354 | ** becomes: lkehresman@yahoo.com |
355 | ******************************************************************************/ |
356 | function sqimap_find_displayable_name ($string) { |
74424a43 |
357 | $string = ' '.trim($string); |
1d2ce1c3 |
358 | $orig_string = $string; |
74424a43 |
359 | if (strpos($string, '<') && strpos($string, '>')) { |
360 | if (strpos($string, '<') == 1) { |
1d2ce1c3 |
361 | $string = sqimap_find_email($string); |
362 | } else { |
363 | $string = trim($string); |
74424a43 |
364 | $string = substr($string, 0, strpos($string, '<')); |
365 | $string = ereg_replace ('"', '', $string); |
1d2ce1c3 |
366 | } |
367 | |
74424a43 |
368 | if (trim($string) == '') { |
1d2ce1c3 |
369 | $string = sqimap_find_email($orig_string); |
370 | } |
371 | } |
372 | return $string; |
052e0c26 |
373 | } |
374 | |
375 | |
052e0c26 |
376 | /****************************************************************************** |
377 | ** Returns the number of unseen messages in this folder |
378 | ******************************************************************************/ |
4d2c01e3 |
379 | function sqimap_unseen_messages ($imap_stream, $mailbox) { |
c5eb2c03 |
380 | //fputs ($imap_stream, "a001 SEARCH UNSEEN NOT DELETED\r\n"); |
381 | fputs ($imap_stream, "a001 STATUS \"$mailbox\" (UNSEEN)\r\n"); |
74424a43 |
382 | $read_ary = sqimap_read_data ($imap_stream, 'a001', true, $result, $message); |
441f2d33 |
383 | ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs); |
384 | return $regs[1]; |
052e0c26 |
385 | } |
386 | |
387 | |
388 | /****************************************************************************** |
389 | ** Saves a message to a given folder -- used for saving sent messages |
390 | ******************************************************************************/ |
391 | function sqimap_append ($imap_stream, $sent_folder, $length) { |
392 | fputs ($imap_stream, "a001 APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n"); |
393 | $tmp = fgets ($imap_stream, 1024); |
394 | } |
395 | |
396 | function sqimap_append_done ($imap_stream) { |
397 | fputs ($imap_stream, "\r\n"); |
398 | $tmp = fgets ($imap_stream, 1024); |
399 | } |
400 | ?> |