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 | |
a3db804c |
10 | $imap_general_debug = false; |
a3db804c |
11 | |
052e0c26 |
12 | /****************************************************************************** |
13 | ** Reads the output from the IMAP stream. If handle_errors is set to true, |
14 | ** this will also handle all errors that are received. If it is not set, |
15 | ** the errors will be sent back through $response and $message |
16 | ******************************************************************************/ |
3d2504a1 |
17 | function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) { |
a3db804c |
18 | global $color, $squirrelmail_language, $imap_general_debug; |
a3432f47 |
19 | |
f358f099 |
20 | $read = fgets($imap_stream, 9096); |
245a6892 |
21 | |
4e7d6212 |
22 | if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) { |
d9ca5b40 |
23 | $size = $regs[1]; |
245a6892 |
24 | } else { |
25 | $size = 0; |
d9ca5b40 |
26 | } |
27 | |
61d9e885 |
28 | $data = array(); |
4f5c1bcb |
29 | $total_size = 0; |
245a6892 |
30 | |
d9ca5b40 |
31 | $continue = true; |
32 | while ($continue) { |
33 | // Continue if needed for this single line |
34 | while (strpos($read, "\n") === false) { |
35 | $read .= fgets($imap_stream, 9096); |
36 | } |
4f5c1bcb |
37 | // For debugging purposes |
d9ca5b40 |
38 | if ($imap_general_debug) { |
39 | echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n"; |
40 | flush(); |
41 | } |
4f5c1bcb |
42 | |
43 | |
44 | // If we know the size, no need to look at the end parameters |
45 | if ($size > 0) { |
46 | if ($total_size == $size) { |
47 | $data[] = $read; |
48 | $read = fgets($imap_stream, 9096); |
61d9e885 |
49 | while (!ereg("^$pre (OK|BAD|NO)(.*)$", $read, $regs)) { |
50 | $read = fgets($imap_stream, 9096); |
51 | } |
4f5c1bcb |
52 | $continue = false; |
53 | } else if ($total_size > $size) { |
54 | $difference = $total_size - $size; |
55 | $total_size = $total_size - strlen($read); |
56 | $read = substr ($read, 0, strlen($read)-$difference); |
57 | $data[] = $read; |
58 | $junk = fgets($imap_stream, 9096); |
d9ca5b40 |
59 | $continue = false; |
4f5c1bcb |
60 | } else { |
61 | $data[] = $read; |
62 | $read = fgets($imap_stream, 9096); |
d9ca5b40 |
63 | } |
4f5c1bcb |
64 | $total_size += strlen($read); |
d9ca5b40 |
65 | } else { |
4f5c1bcb |
66 | if (ereg("^$pre (OK|BAD|NO)(.*)$", $read, $regs)) { |
67 | $continue = false; |
68 | } else { |
69 | $data[] = $read; |
70 | $read = fgets ($imap_stream, 9096); |
71 | } |
d9ca5b40 |
72 | } |
f358f099 |
73 | } |
a3db804c |
74 | |
3d2504a1 |
75 | $response = $regs[1]; |
76 | $message = trim($regs[2]); |
77 | |
74424a43 |
78 | if ($imap_general_debug) echo '--<br>'; |
052e0c26 |
79 | |
f358f099 |
80 | if ($handle_errors == false) |
81 | return $data; |
d9ca5b40 |
82 | |
74424a43 |
83 | if ($response == 'NO') { |
f358f099 |
84 | // ignore this error from m$ exchange, it is not fatal (aka bug) |
8e8ebd27 |
85 | if (strstr($message, 'command resulted in') === false) { |
441f2d33 |
86 | set_up_language($squirrelmail_language); |
04632dbc |
87 | echo "<br><b><font color=$color[2]>\n"; |
f358f099 |
88 | echo _("ERROR : Could not complete request."); |
04632dbc |
89 | echo "</b><br>\n"; |
f358f099 |
90 | echo _("Reason Given: "); |
3d2504a1 |
91 | echo $message . "</font><br>\n"; |
052e0c26 |
92 | exit; |
93 | } |
74424a43 |
94 | } else if ($response == 'BAD') { |
f358f099 |
95 | set_up_language($squirrelmail_language); |
96 | echo "<br><b><font color=$color[2]>\n"; |
97 | echo _("ERROR : Bad or malformed request."); |
98 | echo "</b><br>\n"; |
99 | echo _("Server responded: "); |
100 | echo $message . "</font><br>\n"; |
101 | exit; |
052e0c26 |
102 | } |
103 | |
104 | return $data; |
105 | } |
106 | |
052e0c26 |
107 | /****************************************************************************** |
108 | ** Logs the user into the imap server. If $hide is set, no error messages |
109 | ** will be displayed. This function returns the imap connection handle. |
110 | ******************************************************************************/ |
111 | function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) { |
bc104ef3 |
112 | global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad; |
1b187352 |
113 | |
342c46bd |
114 | $imap_stream = fsockopen ($imap_server_address, $imap_port, |
090595e1 |
115 | $error_number, $error_string, 15); |
052e0c26 |
116 | $server_info = fgets ($imap_stream, 1024); |
117 | |
52eefafc |
118 | // Decrypt the password |
bc104ef3 |
119 | $password = OneTimePadDecrypt($password, $onetimepad); |
52eefafc |
120 | |
052e0c26 |
121 | /** Do some error correction **/ |
122 | if (!$imap_stream) { |
123 | if (!$hide) { |
441f2d33 |
124 | set_up_language($squirrelmail_language, true); |
1b187352 |
125 | printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address); |
052e0c26 |
126 | echo "$error_number : $error_string<br>\r\n"; |
127 | } |
128 | exit; |
129 | } |
130 | |
84c71593 |
131 | fputs ($imap_stream, "a001 LOGIN \"" . addslashes($username) . |
132 | '" "' . addslashes($password) . "\"\r\n"); |
74424a43 |
133 | $read = sqimap_read_data ($imap_stream, 'a001', false, $response, $message); |
052e0c26 |
134 | |
135 | /** If the connection was not successful, lets see why **/ |
3d2504a1 |
136 | if ($response != "OK") { |
052e0c26 |
137 | if (!$hide) { |
74424a43 |
138 | if ($response != 'NO') { |
3d2504a1 |
139 | // "BAD" and anything else gets reported here. |
441f2d33 |
140 | set_up_language($squirrelmail_language, true); |
74424a43 |
141 | if ($response == 'BAD') |
3d2504a1 |
142 | printf (_("Bad request: %s")."<br>\r\n", $message); |
143 | else |
144 | printf (_("Unknown error: %s") . "<br>\n", $message); |
74424a43 |
145 | echo '<br>'; |
3d2504a1 |
146 | echo _("Read data:") . "<br>\n"; |
ec0b7dbd |
147 | if (is_array($read)) |
148 | { |
149 | foreach ($read as $line) |
150 | { |
151 | echo htmlspecialchars($line) . "<br>\n"; |
152 | } |
3d2504a1 |
153 | } |
052e0c26 |
154 | exit; |
165e24a7 |
155 | } else { |
1b187352 |
156 | // If the user does not log in with the correct |
157 | // username and password it is not possible to get the |
158 | // correct locale from the user's preferences. |
159 | // Therefore, apply the same hack as on the login |
160 | // screen. |
161 | |
162 | // $squirrelmail_language is set by a cookie when |
163 | // the user selects language and logs out |
164 | |
441f2d33 |
165 | set_up_language($squirrelmail_language, true); |
1b187352 |
166 | |
052e0c26 |
167 | ?> |
168 | <html> |
74424a43 |
169 | <body bgcolor="ffffff"> |
052e0c26 |
170 | <br> |
171 | <center> |
74424a43 |
172 | <table width="70%" noborder bgcolor="ffffff" align="center"> |
052e0c26 |
173 | <tr> |
74424a43 |
174 | <td bgcolor="dcdcdc"> |
175 | <font color="cc0000"> |
052e0c26 |
176 | <center> |
59177427 |
177 | <?php echo _("ERROR") ?> |
052e0c26 |
178 | </center> |
179 | </font> |
180 | </td> |
181 | </tr> |
182 | <tr> |
183 | <td> |
184 | <center> |
59177427 |
185 | <?php echo _("Unknown user or password incorrect.") ?><br> |
5630c7ec |
186 | <a href="login.php" target="_top"><?php echo _("Click here to try again") ?></a> |
052e0c26 |
187 | </center> |
188 | </td> |
189 | </tr> |
190 | </table> |
191 | </center> |
192 | </body> |
193 | </html> |
59177427 |
194 | <?php |
052e0c26 |
195 | session_destroy(); |
196 | exit; |
052e0c26 |
197 | } |
198 | } else { |
199 | exit; |
200 | } |
201 | } |
202 | |
203 | return $imap_stream; |
204 | } |
205 | |
206 | |
207 | |
208 | |
209 | /****************************************************************************** |
210 | ** Simply logs out the imap session |
211 | ******************************************************************************/ |
212 | function sqimap_logout ($imap_stream) { |
213 | fputs ($imap_stream, "a001 LOGOUT\r\n"); |
214 | } |
215 | |
a3db804c |
216 | function sqimap_capability($imap_stream, $capability) { |
217 | global $sqimap_capabilities; |
218 | global $imap_general_debug; |
052e0c26 |
219 | |
a3db804c |
220 | if (!is_array($sqimap_capabilities)) { |
221 | fputs ($imap_stream, "a001 CAPABILITY\r\n"); |
74424a43 |
222 | $read = sqimap_read_data($imap_stream, 'a001', true, $a, $b); |
a3db804c |
223 | |
224 | $c = explode(' ', $read[0]); |
225 | for ($i=2; $i < count($c); $i++) { |
245a6892 |
226 | $cap_list = explode('=', $c[$i]); |
227 | if (isset($cap_list[1])) |
228 | $sqimap_capabilities[$cap_list[0]] = $cap_list[1]; |
229 | else |
230 | $sqimap_capabilities[$cap_list[0]] = TRUE; |
a3db804c |
231 | } |
232 | } |
233 | return $sqimap_capabilities[$capability]; |
234 | } |
052e0c26 |
235 | |
236 | /****************************************************************************** |
237 | ** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test... |
238 | ******************************************************************************/ |
a3db804c |
239 | function sqimap_get_delimiter ($imap_stream = false) { |
f6941f00 |
240 | global $imap_general_debug; |
241 | global $sqimap_delimiter; |
242 | global $optional_delimiter; |
243 | |
244 | /* Use configured delimiter if set */ |
245 | if((!empty($optional_delimiter)) && $optional_delimiter != "detect") { |
246 | return $optional_delimiter; |
247 | } |
a3db804c |
248 | |
249 | /* Do some caching here */ |
250 | if (!$sqimap_delimiter) { |
251 | if (sqimap_capability($imap_stream, "NAMESPACE")) { |
252 | /* According to something that I can't find, this is supposed to work on all systems |
253 | OS: This won't work in Courier IMAP. |
254 | OS: According to rfc2342 response from NAMESPACE command is: |
255 | OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES) |
256 | OS: We want to lookup all personal NAMESPACES... |
257 | */ |
258 | fputs ($imap_stream, "a001 NAMESPACE\r\n"); |
74424a43 |
259 | $read = sqimap_read_data($imap_stream, 'a001', true, $a, $b); |
8e8ebd27 |
260 | if (eregi('\\* NAMESPACE +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL)', $read[0], $data)) { |
261 | if (eregi('^\\( *\\((.*)\\) *\\)', $data[1], $data2)) |
a3db804c |
262 | $pn = $data2[1]; |
263 | $pna = explode(')(', $pn); |
264 | while (list($k, $v) = each($pna)) |
265 | { |
862ff2d3 |
266 | $lst = explode('"', $v); |
267 | if (isset($lst[3])) { |
268 | $pn[$lst[1]] = $lst[3]; |
269 | } else { |
74424a43 |
270 | $pn[$lst[1]] = ''; |
862ff2d3 |
271 | } |
a3db804c |
272 | } |
a3db804c |
273 | } |
274 | $sqimap_delimiter = $pn[0]; |
40ba4d36 |
275 | } else { |
a3db804c |
276 | fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n"); |
74424a43 |
277 | $read = sqimap_read_data($imap_stream, '.', true, $a, $b); |
278 | $quote_position = strpos ($read[0], '"'); |
a3db804c |
279 | $sqimap_delimiter = substr ($read[0], $quote_position+1, 1); |
40ba4d36 |
280 | } |
a3db804c |
281 | } |
282 | return $sqimap_delimiter; |
283 | } |
052e0c26 |
284 | |
285 | |
286 | /****************************************************************************** |
287 | ** Gets the number of messages in the current mailbox. |
288 | ******************************************************************************/ |
289 | function sqimap_get_num_messages ($imap_stream, $mailbox) { |
290 | fputs ($imap_stream, "a001 EXAMINE \"$mailbox\"\r\n"); |
74424a43 |
291 | $read_ary = sqimap_read_data ($imap_stream, 'a001', true, $result, $message); |
052e0c26 |
292 | for ($i = 0; $i < count($read_ary); $i++) { |
441f2d33 |
293 | if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) { |
294 | return $regs[1]; |
052e0c26 |
295 | } |
296 | } |
441f2d33 |
297 | return "BUG! Couldn't get number of messages in $mailbox!"; |
052e0c26 |
298 | } |
299 | |
300 | |
301 | /****************************************************************************** |
302 | ** Returns a displayable email address |
303 | ******************************************************************************/ |
304 | function sqimap_find_email ($string) { |
305 | /** Luke Ehresman <lehresma@css.tayloru.edu> |
306 | ** <lehresma@css.tayloru.edu> |
307 | ** lehresma@css.tayloru.edu |
1d2ce1c3 |
308 | ** |
309 | ** What about |
310 | ** lehresma@css.tayloru.edu (Luke Ehresman) |
052e0c26 |
311 | **/ |
312 | |
441f2d33 |
313 | if (ereg("<([^>]+)>", $string, $regs)) { |
314 | $string = $regs[1]; |
052e0c26 |
315 | } |
316 | return trim($string); |
317 | } |
318 | |
319 | |
320 | /****************************************************************************** |
321 | ** Takes the From: field, and creates a displayable name. |
322 | ** Luke Ehresman <lkehresman@yahoo.com> |
323 | ** becomes: Luke Ehresman |
324 | ** <lkehresman@yahoo.com> |
325 | ** becomes: lkehresman@yahoo.com |
326 | ******************************************************************************/ |
327 | function sqimap_find_displayable_name ($string) { |
74424a43 |
328 | $string = ' '.trim($string); |
1d2ce1c3 |
329 | $orig_string = $string; |
74424a43 |
330 | if (strpos($string, '<') && strpos($string, '>')) { |
331 | if (strpos($string, '<') == 1) { |
1d2ce1c3 |
332 | $string = sqimap_find_email($string); |
333 | } else { |
334 | $string = trim($string); |
74424a43 |
335 | $string = substr($string, 0, strpos($string, '<')); |
336 | $string = ereg_replace ('"', '', $string); |
1d2ce1c3 |
337 | } |
338 | |
74424a43 |
339 | if (trim($string) == '') { |
1d2ce1c3 |
340 | $string = sqimap_find_email($orig_string); |
341 | } |
342 | } |
343 | return $string; |
052e0c26 |
344 | } |
345 | |
346 | |
052e0c26 |
347 | /****************************************************************************** |
348 | ** Returns the number of unseen messages in this folder |
349 | ******************************************************************************/ |
c5eb2c03 |
350 | function sqimap_unseen_messages ($imap_stream, &$num_unseen, $mailbox) { |
351 | //fputs ($imap_stream, "a001 SEARCH UNSEEN NOT DELETED\r\n"); |
352 | fputs ($imap_stream, "a001 STATUS \"$mailbox\" (UNSEEN)\r\n"); |
74424a43 |
353 | $read_ary = sqimap_read_data ($imap_stream, 'a001', true, $result, $message); |
441f2d33 |
354 | ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs); |
355 | return $regs[1]; |
052e0c26 |
356 | } |
357 | |
358 | |
359 | /****************************************************************************** |
360 | ** Saves a message to a given folder -- used for saving sent messages |
361 | ******************************************************************************/ |
362 | function sqimap_append ($imap_stream, $sent_folder, $length) { |
363 | fputs ($imap_stream, "a001 APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n"); |
364 | $tmp = fgets ($imap_stream, 1024); |
365 | } |
366 | |
367 | function sqimap_append_done ($imap_stream) { |
368 | fputs ($imap_stream, "\r\n"); |
369 | $tmp = fgets ($imap_stream, 1024); |
370 | } |
371 | ?> |