Added a new session variable base_uri. Uses this variable when
[squirrelmail.git] / functions / smtp.php
CommitLineData
59177427 1<?php
b8ea4ed6 2 /** smtp.php
3 **
4 ** This contains all the functions needed to send messages through
36fa79c8 5 ** an smtp server or sendmail.
b8ea4ed6 6 **/
7
d068c0ec 8 $smtp_php = true;
465db5d7 9
df15de21 10 // Returns true only if this message is multipart
11 function isMultipart () {
4ba45d11 12 global $attachments;
13
14 if (count($attachments)>0)
15 return true;
16 else
17 return false;
df15de21 18 }
19
20 // Attach the files that are due to be attached
4ba45d11 21 function attachFiles ($fp) {
c3c37167 22 global $attachments, $attachment_dir;
4ba45d11 23
7b67334e 24 $length = 0;
25
a7d75834 26 if (isMultipart()) {
27 reset($attachments);
28 while (list($localname, $remotename) = each($attachments)) {
29 // This is to make sure noone is giving a filename in another
30 // directory
31 $localname = ereg_replace ("\\/", "", $localname);
32
33 $fileinfo = fopen ($attachment_dir.$localname.".info", "r");
34 $filetype = fgets ($fileinfo, 8192);
35 fclose ($fileinfo);
36 $filetype = trim ($filetype);
37 if ($filetype=="")
38 $filetype = "application/octet-stream";
39
40 $header = "--".mimeBoundary()."\r\n";
f8308f16 41 $header .= "Content-Type: $filetype\r\n";
a7d75834 42 $header .= "Content-Disposition: attachment; filename=\"$remotename\"\r\n";
43 $header .= "Content-Transfer-Encoding: base64\r\n\r\n";
44 fputs ($fp, $header);
45 $length += strlen($header);
46
47 $file = fopen ($attachment_dir.$localname, "r");
48 while ($tmp = fread($file, 570)) {
49 $encoded = chunk_split(base64_encode($tmp));
50 $length += strlen($encoded);
51 fputs ($fp, $encoded);
52 }
53 fclose ($file);
7b67334e 54 }
4ba45d11 55 }
7b67334e 56
57 return $length;
df15de21 58 }
59
a7d75834 60 // Delete files that are uploaded for attaching
61 function deleteAttachments() {
62 global $attachments, $attachment_dir;
63
64 if (isMultipart()) {
65 reset($attachments);
66 while (list($localname, $remotename) = each($attachments)) {
67 if (!ereg ("\\/", $localname)) {
68 unlink ($attachment_dir.$localname);
69 unlink ($attachment_dir.$localname.".info");
70 }
71 }
72 }
73 }
74
df15de21 75 // Return a nice MIME-boundary
76 function mimeBoundary () {
7b67334e 77 global $version, $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
78
79 static $mimeBoundaryString;
df15de21 80
81 if ($mimeBoundaryString == "") {
82 $temp = "SquirrelMail".$version.$REMOTE_ADDR.$SERVER_NAME.
83 $REMOTE_PORT;
4ba45d11 84 $mimeBoundaryString = "=-_+".substr(md5($temp),1,20);
465db5d7 85 }
df15de21 86
87 return $mimeBoundaryString;
465db5d7 88 }
89
24397423 90 /* Time offset for correct timezone */
91 function timezone () {
92 $diff_second = date("Z");
93 if ($diff_second > 0)
94 $sign = "+";
95 else
96 $sign = "-";
97
98 $diff_second = abs($diff_second);
99
100 $diff_hour = floor ($diff_second / 3600);
101 $diff_minute = floor (($diff_second-3600*$diff_hour) / 60);
102
103 $zonename = "(".strftime("%Z").")";
104 $result = sprintf ("%s%02d%02d %s", $sign, $diff_hour, $diff_minute, $zonename);
105 return ($result);
106 }
107
df15de21 108 /* Print all the needed RFC822 headers */
c99c5b31 109 function write822Header ($fp, $t, $c, $b, $subject) {
a7d75834 110 global $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
df15de21 111 global $data_dir, $username, $domain, $version, $useSendmail;
17ce8467 112 global $default_charset;
465db5d7 113
7b67334e 114 // Storing the header to make sure the header is the same
115 // everytime the header is printed.
116 static $header, $headerlength;
117
118 if ($header == "") {
119 $to = parseAddrs($t);
120 $cc = parseAddrs($c);
121 $bcc = parseAddrs($b);
122 $reply_to = getPref($data_dir, $username, "reply_to");
123 $from = getPref($data_dir, $username, "full_name");
124 $from_addr = getPref($data_dir, $username, "email_address");
125
126 if ($from_addr == "")
127 $from_addr = "$username@$domain";
128
129 $to_list = getLineOfAddrs($to);
130 $cc_list = getLineOfAddrs($cc);
131 $bcc_list = getLineOfAddrs($bcc);
132
133 if ($from == "")
134 $from = "<$from_addr>";
135 else
136 $from = $from . " <$from_addr>";
c3084273 137
138 /* Encoding 8-bit characters */
139 $subject = encodeHeader($subject);
140 $from = encodeHeader($from);
7b67334e 141
a7d75834 142 /* This creates an RFC 822 date */
7b67334e 143 $date = date("D, j M Y H:i:s ", mktime()) . timezone();
a7d75834 144
145 /* Create a message-id */
146 $message_id = "<" . $REMOTE_PORT . "." . $REMOTE_ADDR . ".";
147 $message_id .= time() . "@" . $SERVER_NAME .">";
7b67334e 148
149 /* Make an RFC822 Received: line */
150 $header = "Received: from $REMOTE_ADDR by $SERVER_NAME with HTTP; ";
f8308f16 151 $header .= "$date\r\n";
7b67334e 152
a7d75834 153 /* Insert the rest of the header fields */
154 $header .= "Message-ID: $message_id\r\n";
7b67334e 155 $header .= "Date: $date\r\n";
156 $header .= "Subject: $subject\r\n";
157 $header .= "From: $from\r\n";
158 $header .= "To: $to_list \r\n"; // Who it's TO
159
160 if ($cc_list) {
161 $header .= "Cc: $cc_list\r\n"; // Who the CCs are
df15de21 162 }
7b67334e 163
164 if ($reply_to != "")
165 $header .= "Reply-To: $reply_to\r\n";
166
167 if ($useSendmail) {
168 if ($bcc_list) {
169 // BCCs is removed from header by sendmail
170 $header .= "Bcc: $bcc_list\r\n";
171 }
172 }
173
174 $header .= "X-Mailer: SquirrelMail (version $version)\r\n"; // Identify SquirrelMail
175
176 // Do the MIME-stuff
f8308f16 177 $header .= "MIME-Version: 1.0\r\n";
7b67334e 178
179 if (isMultipart()) {
180 $header .= "Content-Type: multipart/mixed; boundary=\"";
181 $header .= mimeBoundary();
182 $header .= "\"\r\n";
183 } else {
17ce8467 184 if ($default_charset != "")
185 $header .= "Content-Type: text/plain; charset=$default_charset\r\n";
186 else
187 $header .= "Content-Type: text/plain;\r\n";
7b67334e 188 $header .= "Content-Transfer-Encoding: 8bit\r\n";
189 }
190 $header .= "\r\n"; // One blank line to separate header and body
df15de21 191
7b67334e 192 $headerlength = strlen($header);
193 }
194
195 // Write the header
196 fputs ($fp, $header);
df15de21 197
7b67334e 198 return $headerlength;
199 }
df15de21 200
7b67334e 201 // Send the body
202 function writeBody ($fp, $passedBody) {
17ce8467 203 global $default_charset;
204
7b67334e 205 $attachmentlength = 0;
206
df15de21 207 if (isMultipart()) {
7b67334e 208 $body = "--".mimeBoundary()."\r\n";
17ce8467 209
210 if ($default_charset != "")
211 $body .= "Content-Type: text/plain; charset=$default_charset\r\n";
212 else
213 $body .= "Content-Type: text/plain\r\n";
214
7b67334e 215 $body .= "Content-Transfer-Encoding: 8bit\r\n\r\n";
216 $body .= stripslashes($passedBody) . "\r\n";
217 fputs ($fp, $body);
218
6441f7c6 219 $attachmentlength = attachFiles($fp);
7b67334e 220
221 $postbody .= "\r\n--".mimeBoundary()."--\r\n\r\n";
222 fputs ($fp, $postbody);
df15de21 223 } else {
7b67334e 224 $body = stripslashes($passedBody) . "\r\n";
225 fputs ($fp, $body);
226 $postbody = "\r\n";
227 fputs ($fp, $postbody);
df15de21 228 }
df15de21 229
7b67334e 230 return (strlen($body) + strlen($postbody) + $attachmentlength);
c99c5b31 231 }
465db5d7 232
c99c5b31 233 // Send mail using the sendmail command
234 function sendSendmail($t, $c, $b, $subject, $body) {
235 global $sendmail_path, $username, $domain;
7b67334e 236
c99c5b31 237 // open pipe to sendmail
7b67334e 238 $fp = popen (escapeshellcmd("$sendmail_path -t -f$username@$domain"), "w");
c99c5b31 239
7b67334e 240 $headerlength = write822Header ($fp, $t, $c, $b, $subject);
241 $bodylength = writeBody($fp, $body);
465db5d7 242
243 pclose($fp);
7b67334e 244
0775b17f 245 return ($headerlength + $bodylength);
465db5d7 246 }
247
b8ea4ed6 248 function smtpReadData($smtpConnection) {
249 $read = fgets($smtpConnection, 1024);
250 $counter = 0;
251 while ($read) {
252 echo $read . "<BR>";
253 $data[$counter] = $read;
254 $read = fgets($smtpConnection, 1024);
255 $counter++;
256 }
257 }
258
c99c5b31 259 function sendSMTP($t, $c, $b, $subject, $body) {
356d7825 260 global $username, $domain, $version, $smtpServerAddress, $smtpPort,
28010579 261 $data_dir, $color;
7831268e 262
40ee9452 263 $to = parseAddrs($t);
264 $cc = parseAddrs($c);
265 $bcc = parseAddrs($b);
356d7825 266 $from_addr = getPref($data_dir, $username, "email_address");
267
268 if ($from_addr == "")
269 $from_addr = "$username@$domain";
d3cdb279 270
c175e2e4 271 $smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString);
b8ea4ed6 272 if (!$smtpConnection) {
273 echo "Error connecting to SMTP Server.<br>";
274 echo "$errorNumber : $errorString<br>";
275 exit;
276 }
d3cdb279 277 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 278 errorCheck($tmp);
b8ea4ed6 279
40ee9452 280 $to_list = getLineOfAddrs($to);
281 $cc_list = getLineOfAddrs($cc);
282
283 /** Lets introduce ourselves */
3379d740 284 fputs($smtpConnection, "HELO $domain\r\n");
d3cdb279 285 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 286 errorCheck($tmp);
7831268e 287
40ee9452 288 /** Ok, who is sending the message? */
3379d740 289 fputs($smtpConnection, "MAIL FROM:<$from_addr>\r\n");
d3cdb279 290 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 291 errorCheck($tmp);
b8ea4ed6 292
40ee9452 293 /** send who the recipients are */
294 for ($i = 0; $i < count($to); $i++) {
3379d740 295 fputs($smtpConnection, "RCPT TO:<$to[$i]>\r\n");
d3cdb279 296 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 297 errorCheck($tmp);
40ee9452 298 }
299 for ($i = 0; $i < count($cc); $i++) {
3379d740 300 fputs($smtpConnection, "RCPT TO:<$cc[$i]>\r\n");
d3cdb279 301 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 302 errorCheck($tmp);
40ee9452 303 }
304 for ($i = 0; $i < count($bcc); $i++) {
3379d740 305 fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\r\n");
d3cdb279 306 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 307 errorCheck($tmp);
40ee9452 308 }
b8ea4ed6 309
40ee9452 310 /** Lets start sending the actual message */
3379d740 311 fputs($smtpConnection, "DATA\r\n");
d3cdb279 312 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 313 errorCheck($tmp);
7831268e 314
7b67334e 315 // Send the message
316 $headerlength = write822Header ($smtpConnection, $t, $c, $b, $subject);
317 $bodylength = writeBody($smtpConnection, $body);
7831268e 318
3379d740 319 fputs($smtpConnection, ".\r\n"); // end the DATA part
d3cdb279 320 $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
3021b626 321 $num = errorCheck($tmp);
322 if ($num != 250) {
28010579 323 echo "ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>";
3021b626 324 }
d3cdb279 325
3379d740 326 fputs($smtpConnection, "QUIT\r\n"); // log off
78509c54 327
328 fclose($smtpConnection);
7b67334e 329
330 return ($headerlength + $bodylength);
b8ea4ed6 331 }
3021b626 332
333
334 function errorCheck($line) {
28010579 335 global $color;
3021b626 336 // Status: 0 = fatal
337 // 5 = ok
338
339 $err_num = substr($line, 0, strpos($line, " "));
340 switch ($err_num) {
341 case 500: $message = "Syntax error; command not recognized";
342 $status = 0;
343 break;
344 case 501: $message = "Syntax error in parameters or arguments";
345 $status = 0;
346 break;
347 case 502: $message = "Command not implemented";
348 $status = 0;
349 break;
350 case 503: $message = "Bad sequence of commands";
351 $status = 0;
352 break;
353 case 504: $message = "Command parameter not implemented";
354 $status = 0;
355 break;
356
357
358 case 211: $message = "System status, or system help reply";
359 $status = 5;
360 break;
361 case 214: $message = "Help message";
362 $status = 5;
363 break;
364
365
366 case 220: $message = "Service ready";
367 $status = 5;
368 break;
369 case 221: $message = "Service closing transmission channel";
370 $status = 5;
371 break;
372 case 421: $message = "Service not available, closing chanel";
373 $status = 0;
374 break;
375
376
377 case 250: $message = "Requested mail action okay, completed";
378 $status = 5;
379 break;
380 case 251: $message = "User not local; will forward";
381 $status = 5;
382 break;
383 case 450: $message = "Requested mail action not taken: mailbox unavailable";
384 $status = 0;
385 break;
386 case 550: $message = "Requested action not taken: mailbox unavailable";
387 $status = 0;
388 break;
389 case 451: $message = "Requested action aborted: error in processing";
390 $status = 0;
391 break;
392 case 551: $message = "User not local; please try forwarding";
393 $status = 0;
394 break;
395 case 452: $message = "Requested action not taken: insufficient system storage";
396 $status = 0;
397 break;
398 case 552: $message = "Requested mail action aborted: exceeding storage allocation";
399 $status = 0;
400 break;
401 case 553: $message = "Requested action not taken: mailbox name not allowed";
402 $status = 0;
403 break;
404 case 354: $message = "Start mail input; end with .";
405 $status = 5;
406 break;
407 case 554: $message = "Transaction failed";
408 $status = 0;
409 break;
410 default: $message = "Unknown response: $line";
411 $status = 0;
412 $error_num = "001";
413 break;
414 }
415
416 if ($status == 0) {
175e7218 417 echo "<HTML><BODY BGCOLOR=#ffffff>";
3021b626 418 echo "<TT>";
419 echo "<BR><B>ERROR</B><BR><BR>";
420 echo "&nbsp;&nbsp;&nbsp;<B>Error Number: </B>$err_num<BR>";
421 echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Reason: </B>$message<BR>";
422 echo "<B>Server Response: </B>$line<BR>";
423 echo "<BR>MAIL NOT SENT";
424 echo "</TT></BODY></HTML>";
425 exit;
426 }
427 return $err_num;
428 }
df15de21 429
966286ae 430 function sendMessage($t, $c, $b, $subject, $body, $reply_id) {
431 global $useSendmail, $msg_id, $is_reply, $mailbox;
6441f7c6 432 global $data_dir, $username, $domain, $key, $version, $sent_folder, $imapServerAddress, $imapPort;
d1b8b679 433
966286ae 434 $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 1);
435 if ($reply_id) {
436 sqimap_mailbox_select ($imap_stream, $mailbox);
437 sqimap_messages_flag ($imap_stream, $reply_id, $reply_id, "Answered");
438 }
439
df15de21 440 if ($useSendmail==true) {
7b67334e 441 $length = sendSendmail($t, $c, $b, $subject, $body);
df15de21 442 } else {
7b67334e 443 $length = sendSMTP($t, $c, $b, $subject, $body);
df15de21 444 }
d1b8b679 445
2966f172 446 if (sqimap_mailbox_exists ($imap_stream, $sent_folder)) {
447 sqimap_append ($imap_stream, $sent_folder, $length);
448 write822Header ($imap_stream, $t, $c, $b, $subject);
449 writeBody ($imap_stream, $body);
450 sqimap_append_done ($imap_stream);
451 }
f8308f16 452
a7d75834 453 // Delete the files uploaded for attaching (if any).
454 deleteAttachments();
df15de21 455 }
465db5d7 456?>