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1 | <?php |
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2 | |
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3 | /** |
4 | * mail_fetch/functions.php |
5 | * |
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6 | * Functions for the mail_fetch plugin. |
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7 | * |
8 | * Original code from LexZEUS <lexzeus@mifinca.com> |
9 | * and josh@superfork.com (extracted from php manual) |
10 | * Adapted for MailFetch by Philippe Mingo <mingo@rotedic.com> |
11 | * |
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12 | * @copyright © 1999-2006 The SquirrelMail Project Team |
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13 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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14 | * @version $Id$ |
15 | * @package plugins |
16 | * @subpackage mail_fetch |
17 | */ |
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18 | |
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19 | /** @ignore */ |
20 | if (! defined('SM_PATH')) define('SM_PATH','../../'); |
21 | |
22 | /** pop3 class */ |
23 | include_once (SM_PATH . 'plugins/mail_fetch/class.POP3.php'); |
24 | |
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25 | /** declare plugin globals */ |
26 | global $mail_fetch_allow_unsubscribed; |
27 | |
28 | /** |
29 | * Controls use of unsubscribed folders in plugin |
30 | * @global boolean $mail_fetch_allow_unsubscribed |
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31 | * @since 1.5.1 and 1.4.5 |
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32 | */ |
33 | $mail_fetch_allow_unsubscribed = false; |
34 | |
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35 | /** load site config */ |
36 | if (file_exists(SM_PATH . 'config/mail_fetch_config.php')) { |
37 | include_once(SM_PATH . 'config/mail_fetch_config.php'); |
38 | } elseif (file_exists(SM_PATH . 'plugins/mail_fetch/config.php')) { |
39 | include_once(SM_PATH . 'plugins/mail_fetch/config.php'); |
40 | } |
41 | |
42 | // hooked functions |
43 | |
44 | /** |
45 | * internal function used to load user's preferences |
46 | * @since 1.5.1 |
47 | * @private |
48 | */ |
49 | function mail_fetch_load_pref_function() { |
50 | global $data_dir; |
51 | global $mailfetch_server_number; |
52 | global $mailfetch_cypher, $mailfetch_port_; |
53 | global $mailfetch_server_,$mailfetch_alias_,$mailfetch_user_,$mailfetch_pass_; |
54 | global $mailfetch_lmos_, $mailfetch_uidl_, $mailfetch_login_, $mailfetch_fref_; |
55 | global $PHP_SELF; |
56 | |
57 | sqgetGlobalVar('username', $username, SQ_SESSION); |
58 | |
59 | if( stristr( $PHP_SELF, 'mail_fetch' ) ) { |
60 | $mailfetch_server_number = getPref($data_dir, $username, 'mailfetch_server_number', 0); |
61 | $mailfetch_cypher = getPref($data_dir, $username, 'mailfetch_cypher', 'on' ); |
62 | if ($mailfetch_server_number<1) $mailfetch_server_number=0; |
63 | for ($i=0;$i<$mailfetch_server_number;$i++) { |
64 | $mailfetch_server_[$i] = getPref($data_dir, $username, "mailfetch_server_$i"); |
65 | $mailfetch_port_[$i] = getPref($data_dir, $username, "mailfetch_port_$i"); |
66 | $mailfetch_alias_[$i] = getPref($data_dir, $username, "mailfetch_alias_$i"); |
67 | $mailfetch_user_[$i] = getPref($data_dir, $username, "mailfetch_user_$i"); |
68 | $mailfetch_pass_[$i] = getPref($data_dir, $username, "mailfetch_pass_$i"); |
69 | $mailfetch_lmos_[$i] = getPref($data_dir, $username, "mailfetch_lmos_$i"); |
70 | $mailfetch_login_[$i] = getPref($data_dir, $username, "mailfetch_login_$i"); |
71 | $mailfetch_fref_[$i] = getPref($data_dir, $username, "mailfetch_fref_$i"); |
72 | $mailfetch_uidl_[$i] = getPref($data_dir, $username, "mailfetch_uidl_$i"); |
73 | if( $mailfetch_cypher == 'on' ) $mailfetch_pass_[$i] = decrypt( $mailfetch_pass_[$i] ); |
74 | } |
75 | } |
76 | } |
77 | |
78 | /** |
79 | * Internal function used to fetch pop3 mails on login |
80 | * @since 1.5.1 |
81 | * @private |
82 | */ |
83 | function mail_fetch_login_function() { |
84 | include_once (SM_PATH . 'include/validate.php'); |
85 | include_once (SM_PATH . 'functions/imap.php'); |
86 | |
87 | global $data_dir, $imapServerAddress, $imapPort; |
88 | |
89 | sqgetGlobalVar('username', $username, SQ_SESSION); |
90 | sqgetGlobalVar('key', $key, SQ_COOKIE); |
91 | |
92 | $mailfetch_newlog = getPref($data_dir, $username, 'mailfetch_newlog'); |
93 | |
94 | $outMsg = ''; |
95 | |
96 | $mailfetch_server_number = getPref($data_dir, $username, 'mailfetch_server_number'); |
97 | if (!isset($mailfetch_server_number)) $mailfetch_server_number=0; |
98 | $mailfetch_cypher = getPref($data_dir, $username, 'mailfetch_cypher'); |
99 | if ($mailfetch_server_number<1) $mailfetch_server_number=0; |
100 | |
101 | for ($i_loop=0;$i_loop<$mailfetch_server_number;$i_loop++) { |
102 | |
103 | $mailfetch_login_[$i_loop] = getPref($data_dir, $username, "mailfetch_login_$i_loop"); |
104 | $mailfetch_fref_[$i_loop] = getPref($data_dir, $username, "mailfetch_fref_$i_loop"); |
105 | $mailfetch_pass_[$i_loop] = getPref($data_dir, $username, "mailfetch_pass_$i_loop"); |
106 | if( $mailfetch_cypher == 'on' ) |
107 | $mailfetch_pass_[$i_loop] = decrypt( $mailfetch_pass_[$i_loop] ); |
108 | |
109 | if( $mailfetch_pass_[$i_loop] <> '' && // Empty passwords no allowed |
110 | ( ( $mailfetch_login_[$i_loop] == 'on' && $mailfetch_newlog == 'on' ) || $mailfetch_fref_[$i_loop] == 'on' ) ) { |
111 | |
112 | $mailfetch_server_[$i_loop] = getPref($data_dir, $username, "mailfetch_server_$i_loop"); |
113 | $mailfetch_port_[$i_loop] = getPref($data_dir, $username , "mailfetch_port_$i_loop"); |
114 | $mailfetch_alias_[$i_loop] = getPref($data_dir, $username, "mailfetch_alias_$i_loop"); |
115 | $mailfetch_user_[$i_loop] = getPref($data_dir, $username, "mailfetch_user_$i_loop"); |
116 | $mailfetch_lmos_[$i_loop] = getPref($data_dir, $username, "mailfetch_lmos_$i_loop"); |
117 | $mailfetch_uidl_[$i_loop] = getPref($data_dir, $username, "mailfetch_uidl_$i_loop"); |
118 | $mailfetch_subfolder_[$i_loop] = getPref($data_dir, $username, "mailfetch_subfolder_$i_loop"); |
119 | |
120 | $mailfetch_server=$mailfetch_server_[$i_loop]; |
121 | $mailfetch_port=$mailfetch_port_[$i_loop]; |
122 | $mailfetch_user=$mailfetch_user_[$i_loop]; |
123 | $mailfetch_alias=$mailfetch_alias_[$i_loop]; |
124 | $mailfetch_pass=$mailfetch_pass_[$i_loop]; |
125 | $mailfetch_lmos=$mailfetch_lmos_[$i_loop]; |
126 | $mailfetch_login=$mailfetch_login_[$i_loop]; |
127 | $mailfetch_uidl=$mailfetch_uidl_[$i_loop]; |
128 | $mailfetch_subfolder=$mailfetch_subfolder_[$i_loop]; |
129 | |
130 | // $outMsg .= "$mailfetch_alias checked<br />"; |
131 | |
132 | // $outMsg .= "$mailfetch_alias_[$i_loop]<br />"; |
133 | |
134 | $pop3 = new POP3($mailfetch_server, 60); |
135 | |
136 | if (!$pop3->connect($mailfetch_server,$mailfetch_port)) { |
137 | $outMsg .= _("Warning, ") . $pop3->ERROR; |
138 | continue; |
139 | } |
140 | |
141 | $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 10); |
142 | |
143 | $Count = $pop3->login($mailfetch_user, $mailfetch_pass); |
144 | if (($Count == false || $Count == -1) && $pop3->ERROR != '') { |
145 | $outMsg .= _("Login Failed:") . $pop3->ERROR; |
146 | continue; |
147 | } |
148 | |
149 | // register_shutdown_function($pop3->quit()); |
150 | |
151 | $msglist = $pop3->uidl(); |
152 | |
153 | $i = 1; |
154 | for ($j = 1; $j < sizeof($msglist); $j++) { |
155 | if ($msglist["$j"] == $mailfetch_uidl) { |
156 | $i = $j+1; |
157 | break; |
158 | } |
159 | } |
160 | |
161 | if ($Count < $i) { |
162 | $pop3->quit(); |
163 | continue; |
164 | } |
165 | if ($Count == 0) { |
166 | $pop3->quit(); |
167 | continue; |
168 | } |
169 | |
170 | // Faster to get them all at once |
171 | $mailfetch_uidl = $pop3->uidl(); |
172 | |
173 | if (! is_array($mailfetch_uidl) && $mailfetch_lmos == 'on') |
174 | $outMsg .= _("Server does not support UIDL."); |
175 | |
176 | for (; $i <= $Count; $i++) { |
177 | if (!ini_get('safe_mode')) |
178 | set_time_limit(20); // 20 seconds per message max |
179 | $Message = ""; |
180 | $MessArray = $pop3->get($i); |
181 | |
182 | if ( (!$MessArray) or (gettype($MessArray) != "array")) { |
183 | $outMsg .= _("Warning, ") . $pop3->ERROR; |
184 | continue 2; |
185 | } |
186 | |
187 | while (list($lineNum, $line) = each ($MessArray)) { |
188 | $Message .= $line; |
189 | } |
190 | |
191 | // check if mail folder is not null and subscribed (There is possible issue with /noselect mail folders) |
192 | if ($mailfetch_subfolder=='' || |
193 | ! mail_fetch_check_folder($imap_stream,$mailfetch_subfolder)) { |
194 | fputs($imap_stream, "A3$i APPEND INBOX {" . strlen($Message) . "}\r\n"); |
195 | } else { |
196 | fputs($imap_stream, "A3$i APPEND $mailfetch_subfolder {" . strlen($Message) . "}\r\n"); |
197 | } |
198 | $Line = fgets($imap_stream, 1024); |
199 | if (substr($Line, 0, 1) == '+') { |
200 | fputs($imap_stream, $Message); |
201 | fputs($imap_stream, "\r\n"); |
202 | sqimap_read_data($imap_stream, "A3$i", false, $response, $message); |
203 | |
204 | if ($mailfetch_lmos != 'on') { |
205 | $pop3->delete($i); |
206 | } |
207 | } else { |
208 | echo "$Line"; |
209 | $outMsg .= _("Error Appending Message!"); |
210 | } |
211 | } |
212 | |
213 | $pop3->quit(); |
214 | sqimap_logout($imap_stream); |
215 | if (is_array($mailfetch_uidl)) { |
216 | setPref($data_dir,$username,"mailfetch_uidl_$i_loop", array_pop($mailfetch_uidl)); |
217 | } |
218 | } |
219 | } |
220 | |
221 | if( trim( $outMsg ) <> '' ) { |
222 | echo '<br /><font size="1">' . _("Mail Fetch Result:") . "<br />$outMsg</font>"; |
223 | } |
224 | if( $mailfetch_newlog == 'on' ) { |
225 | setPref($data_dir, $username, 'mailfetch_newlog', 'off'); |
226 | } |
227 | } |
228 | |
229 | /** |
230 | * Internal function used to detect new logins |
231 | */ |
232 | function mail_fetch_setnew_function() { |
233 | global $data_dir; |
234 | |
235 | // FIXME: check if function is already loaded in login_verified hook |
236 | include_once(SM_PATH . 'functions/prefs.php'); |
237 | |
238 | sqgetGlobalVar('username', $username, SQ_SESSION); |
239 | setPref( $data_dir, $username, 'mailfetch_newlog', 'on' ); |
240 | } |
241 | |
242 | /** |
243 | * Internal function used to register option block |
244 | * @since 1.5.1 |
245 | * @private |
246 | */ |
247 | function mailfetch_optpage_register_block_function() { |
248 | global $optpage_blocks; |
249 | |
250 | $optpage_blocks[] = array( |
251 | 'name' => _("POP3 Fetch Mail"), |
252 | 'url' => '../plugins/mail_fetch/options.php', |
253 | 'desc' => _("This configures settings for downloading email from a POP3 mailbox to your account on this server."), |
254 | 'js' => false |
255 | ); |
256 | } |
257 | |
258 | /** |
259 | * Internal function used to update mail_fetch settings |
260 | * when folders are renamed or deleted. |
261 | * @since 1.5.1 |
262 | * @private |
263 | */ |
264 | function mail_fetch_folderact_function($args) { |
265 | global $username, $data_dir; |
266 | |
267 | if (empty($args) || !is_array($args)) { |
268 | return; |
269 | } |
270 | |
271 | /* Should be 3 ars, 1: old folder, 2: action, 3: new folder */ |
272 | if (count($args) != 3) { |
273 | return; |
274 | } |
275 | |
276 | list($old_folder, $action, $new_folder) = $args; |
277 | |
278 | $mailfetch_server_number = getPref($data_dir, $username, 'mailfetch_server_number'); |
279 | |
280 | for ($i = 0; $i < $mailfetch_server_number; $i++) { |
281 | $mailfetch_subfolder = getPref($data_dir, $username, 'mailfetch_subfolder_' . $i); |
282 | |
283 | if ($mailfetch_subfolder != $old_folder) { |
284 | continue; |
285 | } |
286 | |
287 | if ($action == 'delete') { |
288 | setPref($data_dir, $username, 'mailfetch_subfolder_' . $i, 'INBOX'); |
289 | } elseif ($action == 'rename') { |
290 | setPref($data_dir, $username, 'mailfetch_subfolder_' . $i, $new_folder); |
291 | } |
292 | } |
293 | } |
294 | // end of hooked functions |
295 | |
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296 | /** |
297 | * hex2bin - document me |
298 | */ |
299 | function hex2bin( $data ) { |
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300 | |
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301 | /* Original code by josh@superfork.com */ |
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302 | |
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303 | $len = strlen($data); |
304 | $newdata = ''; |
305 | for( $i=0; $i < $len; $i += 2 ) { |
306 | $newdata .= pack( "C", hexdec( substr( $data, $i, 2) ) ); |
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307 | } |
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308 | return $newdata; |
309 | } |
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310 | |
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311 | function mf_keyED( $txt ) { |
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312 | |
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313 | global $MF_TIT; |
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314 | |
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315 | if( !isset( $MF_TIT ) ) { |
316 | $MF_TIT = "MailFetch Secure for SquirrelMail 1.x"; |
317 | } |
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318 | |
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319 | $encrypt_key = md5( $MF_TIT ); |
320 | $ctr = 0; |
321 | $tmp = ""; |
322 | for( $i = 0; $i < strlen( $txt ); $i++ ) { |
323 | if( $ctr == strlen( $encrypt_key ) ) $ctr=0; |
324 | $tmp.= substr( $txt, $i, 1 ) ^ substr( $encrypt_key, $ctr, 1 ); |
325 | $ctr++; |
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326 | } |
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327 | return $tmp; |
328 | } |
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329 | |
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330 | function encrypt( $txt ) { |
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331 | |
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332 | srand( (double) microtime() * 1000000 ); |
333 | $encrypt_key = md5( rand( 0, 32000 ) ); |
334 | $ctr = 0; |
335 | $tmp = ""; |
336 | for( $i = 0; $i < strlen( $txt ); $i++ ) { |
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337 | if ($ctr==strlen($encrypt_key)) $ctr=0; |
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338 | $tmp.= substr($encrypt_key,$ctr,1) . |
339 | (substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1)); |
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340 | $ctr++; |
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341 | } |
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342 | return bin2hex( mf_keyED( $tmp ) ); |
343 | |
344 | } |
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345 | |
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346 | function decrypt( $txt ) { |
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347 | |
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348 | $txt = mf_keyED( hex2bin( $txt ) ); |
349 | $tmp = ''; |
350 | for ( $i=0; $i < strlen( $txt ); $i++ ) { |
351 | $md5 = substr( $txt, $i, 1 ); |
352 | $i++; |
353 | $tmp.= ( substr( $txt, $i, 1 ) ^ $md5 ); |
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354 | } |
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355 | return $tmp; |
356 | } |
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357 | |
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358 | /** |
359 | * check mail folder |
360 | * @param stream $imap_stream imap connection resource |
361 | * @param string $imap_folder imap folder name |
362 | * @return boolean true, when folder can be used to store messages. |
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363 | * @since 1.5.1 and 1.4.5 |
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364 | */ |
365 | function mail_fetch_check_folder($imap_stream,$imap_folder) { |
366 | global $mail_fetch_allow_unsubscribed; |
367 | |
368 | // check if folder is subscribed or only exists. |
369 | if (sqimap_mailbox_is_subscribed($imap_stream,$imap_folder)) { |
370 | $ret = true; |
371 | } elseif ($mail_fetch_allow_unsubscribed && sqimap_mailbox_exists($imap_stream,$imap_folder)) { |
372 | $ret = true; |
373 | } else { |
374 | $ret = false; |
375 | } |
376 | |
377 | // make sure that folder can store messages |
378 | if ($ret && mail_fetch_check_noselect($imap_stream,$imap_folder)) { |
379 | $ret = false; |
380 | } |
381 | |
382 | return $ret; |
383 | } |
384 | |
385 | /** |
386 | * Checks if folder is noselect (can't store messages) |
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387 | * |
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388 | * Function does not check if folder subscribed. |
389 | * @param stream $imap_stream imap connection resource |
390 | * @param string $imap_folder imap folder name |
391 | * @return boolean true, when folder has noselect flag. false in any other case. |
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392 | * @since 1.5.1 and 1.4.5 |
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393 | */ |
394 | function mail_fetch_check_noselect($imap_stream,$imap_folder) { |
395 | $boxes=sqimap_mailbox_list($imap_stream); |
396 | foreach($boxes as $box) { |
397 | if ($box['unformatted']==$imap_folder) { |
398 | return (bool) check_is_noselect($box['raw']); |
399 | } |
400 | } |
401 | return false; |
402 | } |
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403 | ?> |