4960ec8e |
1 | <?php |
69298c28 |
2 | /** |
3 | * Deliver.class.php |
4 | * |
82d304a0 |
5 | * Copyright (c) 1999-2004 The SquirrelMail Project Team |
69298c28 |
6 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
7 | * |
8 | * This contains all the functions needed to send messages through |
9 | * a delivery backend. |
10 | * |
11 | * $Id$ |
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12 | * |
13 | * @author Marc Groot Koerkamp |
14 | * @package squirrelmail |
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15 | */ |
16 | |
72b004e6 |
17 | /** |
18 | * Deliver Class - called to actually deliver the message |
19 | * |
20 | * This class is called by compose.php and other code that needs |
21 | * to send messages. All delivery functionality should be centralized |
22 | * in this class. |
23 | * |
24 | * Do not place UI code in this class, as UI code should be placed in templates |
25 | * going forward. |
26 | * |
27 | * @author Marc Groot Koerkamp |
28 | * @package squirrelmail |
29 | */ |
4960ec8e |
30 | class Deliver { |
31 | |
72b004e6 |
32 | /** |
33 | * function mail - send the message parts to the SMTP stream |
34 | * |
35 | * @param Message $message Message class to send |
36 | * @param resource $stream file handle to the SMTP stream |
37 | * |
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38 | * @return integer $raw_length |
72b004e6 |
39 | */ |
59387d1c |
40 | function mail($message, $stream=false) { |
78f39e78 |
41 | $rfc822_header = $message->rfc822_header; |
42 | if (count($message->entities)) { |
43 | $boundary = $this->mimeBoundary(); |
44 | $rfc822_header->content_type->properties['boundary']='"'.$boundary.'"'; |
45 | } else { |
46 | $boundary=''; |
47 | } |
48 | $raw_length = 0; |
72b004e6 |
49 | $reply_rfc822_header = (isset($message->reply_rfc822_header) |
78f39e78 |
50 | ? $message->reply_rfc822_header : ''); |
51 | $header = $this->prepareRFC822_Header($rfc822_header, $reply_rfc822_header, $raw_length); |
75b14a70 |
52 | |
78f39e78 |
53 | if ($stream) { |
59387d1c |
54 | $this->preWriteToStream($header); |
55 | $this->writeToStream($stream, $header); |
78f39e78 |
56 | } |
57 | $this->writeBody($message, $stream, $raw_length, $boundary); |
58 | return $raw_length; |
3b53d87f |
59 | } |
78f39e78 |
60 | |
72b004e6 |
61 | /** |
62 | * function writeBody - generate and write the mime boundaries around each part to the stream |
63 | * |
64 | * Recursively formats and writes the MIME boundaries of the $message |
65 | * to the output stream. |
66 | * |
67 | * @param Message $message Message object to transform |
68 | * @param resource $stream SMTP output stream |
69 | * @param integer &$length_raw raw length of the message (part) |
70 | * as returned by mail fn |
71 | * @param string $boundary custom boundary to call, usually for subparts |
72 | * |
3a70ee56 |
73 | * @return void |
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74 | */ |
3b53d87f |
75 | function writeBody($message, $stream, &$length_raw, $boundary='') { |
caf6a9a4 |
76 | // calculate boundary in case of multidimensional mime structures |
77 | if ($boundary && $message->entity_id && count($message->entities)) { |
78 | if (strpos($boundary,'_part_')) { |
79 | $boundary = substr($boundary,0,strpos($boundary,'_part_')); |
80 | } |
81 | $boundary_new = $boundary . '_part_'.$message->entity_id; |
82 | } else { |
83 | $boundary_new = $boundary; |
84 | } |
1274f430 |
85 | if ($boundary && !$message->rfc822_header) { |
78f39e78 |
86 | $s = '--'.$boundary."\r\n"; |
caf6a9a4 |
87 | $s .= $this->prepareMIME_Header($message, $boundary_new); |
78f39e78 |
88 | $length_raw += strlen($s); |
89 | if ($stream) { |
3b53d87f |
90 | $this->preWriteToStream($s); |
78f39e78 |
91 | $this->writeToStream($stream, $s); |
92 | } |
93 | } |
94 | $this->writeBodyPart($message, $stream, $length_raw); |
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95 | |
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96 | $last = false; |
97 | for ($i=0, $entCount=count($message->entities);$i<$entCount;$i++) { |
caf6a9a4 |
98 | $msg = $this->writeBody($message->entities[$i], $stream, $length_raw, $boundary_new); |
78f39e78 |
99 | if ($i == $entCount-1) $last = true; |
100 | } |
1274f430 |
101 | if ($boundary && $last) { |
dcc5c913 |
102 | $s = "--".$boundary_new."--\r\n\r\n"; |
78f39e78 |
103 | $length_raw += strlen($s); |
104 | if ($stream) { |
3b53d87f |
105 | $this->preWriteToStream($s); |
78f39e78 |
106 | $this->writeToStream($stream, $s); |
107 | } |
108 | } |
3b53d87f |
109 | } |
110 | |
72b004e6 |
111 | /** |
112 | * function writeBodyPart - write each individual mimepart |
113 | * |
114 | * Recursively called by WriteBody to write each mime part to the SMTP stream |
115 | * |
116 | * @param Message $message Message object to transform |
117 | * @param resource $stream SMTP output stream |
118 | * @param integer &$length length of the message part |
119 | * as returned by mail fn |
120 | * |
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121 | * @return void |
72b004e6 |
122 | */ |
3b53d87f |
123 | function writeBodyPart($message, $stream, &$length) { |
1274f430 |
124 | if ($message->mime_header) { |
78f39e78 |
125 | $type0 = $message->mime_header->type0; |
126 | } else { |
127 | $type0 = $message->rfc822_header->content_type->type0; |
128 | } |
129 | |
130 | $body_part_trailing = $last = ''; |
131 | switch ($type0) |
132 | { |
133 | case 'text': |
134 | case 'message': |
135 | if ($message->body_part) { |
136 | $body_part = $message->body_part; |
137 | $length += $this->clean_crlf($body_part); |
138 | if ($stream) { |
72b004e6 |
139 | $this->preWriteToStream($body_part); |
78f39e78 |
140 | $this->writeToStream($stream, $body_part); |
141 | } |
142 | $last = $body_part; |
143 | } elseif ($message->att_local_name) { |
144 | $filename = $message->att_local_name; |
145 | $file = fopen ($filename, 'rb'); |
146 | while ($body_part = fgets($file, 4096)) { |
147 | $length += $this->clean_crlf($body_part); |
148 | if ($stream) { |
149 | $this->preWriteToStream($body_part); |
150 | $this->writeToStream($stream, $body_part); |
151 | } |
152 | $last = $body_part; |
153 | } |
154 | fclose($file); |
155 | } |
156 | break; |
157 | default: |
158 | if ($message->body_part) { |
159 | $body_part = $message->body_part; |
160 | $length += $this->clean_crlf($body_part); |
161 | if ($stream) { |
162 | $this->writeToStream($stream, $body_part); |
163 | } |
164 | } elseif ($message->att_local_name) { |
165 | $filename = $message->att_local_name; |
166 | $file = fopen ($filename, 'rb'); |
167 | $encoded = ''; |
168 | while ($tmp = fread($file, 570)) { |
169 | $body_part = chunk_split(base64_encode($tmp)); |
170 | $length += $this->clean_crlf($body_part); |
171 | if ($stream) { |
172 | $this->writeToStream($stream, $body_part); |
173 | } |
174 | } |
175 | fclose($file); |
3b53d87f |
176 | } |
78f39e78 |
177 | break; |
178 | } |
179 | $body_part_trailing = ''; |
180 | if ($last && substr($last,-1) != "\n") { |
181 | $body_part_trailing = "\r\n"; |
182 | } |
183 | if ($body_part_trailing) { |
184 | $length += strlen($body_part_trailing); |
185 | if ($stream) { |
186 | $this->preWriteToStream($body_part_trailing); |
187 | $this->writeToStream($stream, $body_part_trailing); |
188 | } |
189 | } |
3b53d87f |
190 | } |
78f39e78 |
191 | |
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192 | /** |
193 | * function clean_crlf - change linefeeds and newlines to legal characters |
194 | * |
195 | * The SMTP format only allows CRLF as line terminators. |
196 | * This function replaces illegal teminators with the correct terminator. |
197 | * |
198 | * @param string &$s string to clean linefeeds on |
199 | * |
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200 | * @return void |
72b004e6 |
201 | */ |
69298c28 |
202 | function clean_crlf(&$s) { |
3b53d87f |
203 | $s = str_replace("\r\n", "\n", $s); |
204 | $s = str_replace("\r", "\n", $s); |
205 | $s = str_replace("\n", "\r\n", $s); |
78f39e78 |
206 | return strlen($s); |
3b53d87f |
207 | } |
78f39e78 |
208 | |
72b004e6 |
209 | /** |
210 | * function strip_crlf - strip linefeeds and newlines from a string |
211 | * |
212 | * The SMTP format only allows CRLF as line terminators. |
213 | * This function strips all line terminators from the string. |
214 | * |
215 | * @param string &$s string to clean linefeeds on |
216 | * |
3a70ee56 |
217 | * @return void |
72b004e6 |
218 | */ |
e4f9307a |
219 | function strip_crlf(&$s) { |
220 | $s = str_replace("\r\n ", '', $s); |
78f39e78 |
221 | $s = str_replace("\r", '', $s); |
222 | $s = str_replace("\n", '', $s); |
e4f9307a |
223 | } |
3b53d87f |
224 | |
72b004e6 |
225 | /** |
226 | * function preWriteToStream - reserved for extended functionality |
227 | * |
228 | * This function is not yet implemented. |
229 | * Reserved for extended functionality. |
230 | * |
231 | * @param string &$s string to operate on |
232 | * |
3a70ee56 |
233 | * @return void |
72b004e6 |
234 | */ |
69298c28 |
235 | function preWriteToStream(&$s) { |
3b53d87f |
236 | } |
78f39e78 |
237 | |
72b004e6 |
238 | /** |
239 | * function writeToStream - write data to the SMTP stream |
240 | * |
241 | * @param resource $stream SMTP output stream |
242 | * @param string $data string with data to send to the SMTP stream |
243 | * |
3a70ee56 |
244 | * @return void |
72b004e6 |
245 | */ |
3b53d87f |
246 | function writeToStream($stream, $data) { |
78f39e78 |
247 | fputs($stream, $data); |
3b53d87f |
248 | } |
78f39e78 |
249 | |
72b004e6 |
250 | /** |
251 | * function initStream - reserved for extended functionality |
252 | * |
253 | * This function is not yet implemented. |
254 | * Reserved for extended functionality. |
255 | * |
256 | * @param Message $message Message object |
257 | * @param string $host host name or IP to connect to |
258 | * @param string $user username to log into the SMTP server with |
259 | * @param string $pass password to log into the SMTP server with |
260 | * @param integer $length |
261 | * |
3a70ee56 |
262 | * @return handle $stream file handle resource to SMTP stream |
72b004e6 |
263 | */ |
3b53d87f |
264 | function initStream($message, $length=0, $host='', $port='', $user='', $pass='') { |
78f39e78 |
265 | return $stream; |
3b53d87f |
266 | } |
72b004e6 |
267 | |
268 | /** |
269 | * function getBCC - reserved for extended functionality |
270 | * |
271 | * This function is not yet implemented. |
272 | * Reserved for extended functionality. |
273 | * |
274 | */ |
275 | function getBCC() { |
78f39e78 |
276 | return false; |
59387d1c |
277 | } |
3b53d87f |
278 | |
72b004e6 |
279 | /** |
280 | * function prepareMIME_Header - creates the mime header |
281 | * |
282 | * @param Message $message Message object to act on |
283 | * @param string $boundary mime boundary from fn MimeBoundary |
284 | * |
3a70ee56 |
285 | * @return string $header properly formatted mime header |
72b004e6 |
286 | */ |
3b53d87f |
287 | function prepareMIME_Header($message, $boundary) { |
78f39e78 |
288 | $mime_header = $message->mime_header; |
289 | $rn="\r\n"; |
290 | $header = array(); |
1274f430 |
291 | |
78f39e78 |
292 | $contenttype = 'Content-Type: '. $mime_header->type0 .'/'. |
293 | $mime_header->type1; |
294 | if (count($message->entities)) { |
295 | $contenttype .= ";\r\n " . 'boundary="'.$boundary.'"'; |
296 | } |
297 | if (isset($mime_header->parameters['name'])) { |
298 | $contenttype .= '; name="'. |
299 | encodeHeader($mime_header->parameters['name']). '"'; |
300 | } |
301 | if (isset($mime_header->parameters['charset'])) { |
302 | $charset = $mime_header->parameters['charset']; |
303 | $contenttype .= '; charset="'. |
304 | encodeHeader($charset). '"'; |
305 | } |
1274f430 |
306 | |
78f39e78 |
307 | $header[] = $contenttype . $rn; |
308 | if ($mime_header->description) { |
309 | $header[] .= 'Content-Description: ' . $mime_header->description . $rn; |
310 | } |
311 | if ($mime_header->encoding) { |
312 | $encoding = $mime_header->encoding; |
313 | $header[] .= 'Content-Transfer-Encoding: ' . $mime_header->encoding . $rn; |
314 | } else { |
315 | if ($mime_header->type0 == 'text' || $mime_header->type0 == 'message') { |
316 | $header[] .= 'Content-Transfer-Encoding: 8bit' . $rn; |
317 | } else { |
318 | $header[] .= 'Content-Transfer-Encoding: base64' . $rn; |
319 | } |
320 | } |
321 | if ($mime_header->id) { |
322 | $header[] .= 'Content-ID: ' . $mime_header->id . $rn; |
323 | } |
324 | if ($mime_header->disposition) { |
325 | $disposition = $mime_header->disposition; |
326 | $contentdisp = 'Content-Disposition: ' . $disposition->name; |
327 | if ($disposition->getProperty('filename')) { |
328 | $contentdisp .= '; filename="'. |
329 | encodeHeader($disposition->getProperty('filename')). '"'; |
330 | } |
72b004e6 |
331 | $header[] = $contentdisp . $rn; |
78f39e78 |
332 | } |
333 | if ($mime_header->md5) { |
334 | $header[] .= 'Content-MD5: ' . $mime_header->md5 . $rn; |
335 | } |
336 | if ($mime_header->language) { |
337 | $header[] .= 'Content-Language: ' . $mime_header->language . $rn; |
338 | } |
4960ec8e |
339 | |
78f39e78 |
340 | $cnt = count($header); |
341 | $hdr_s = ''; |
342 | for ($i = 0 ; $i < $cnt ; $i++) { |
343 | $hdr_s .= $this->foldLine($header[$i], 78,str_pad('',4)); |
344 | } |
345 | $header = $hdr_s; |
346 | $header .= $rn; /* One blank line to separate mimeheader and body-entity */ |
347 | return $header; |
348 | } |
4960ec8e |
349 | |
72b004e6 |
350 | /** |
351 | * function prepareRFC822_Header - prepares the RFC822 header string from Rfc822Header object(s) |
352 | * |
353 | * This function takes the Rfc822Header object(s) and formats them |
354 | * into the RFC822Header string to send to the SMTP server as part |
355 | * of the SMTP message. |
356 | * |
357 | * @param Rfc822Header $rfc822_header |
358 | * @param Rfc822Header $reply_rfc822_header |
359 | * @param integer &$raw_length length of the message |
360 | * |
3a70ee56 |
361 | * @return string $header |
72b004e6 |
362 | */ |
75b14a70 |
363 | function prepareRFC822_Header($rfc822_header, $reply_rfc822_header, &$raw_length) { |
35aaf666 |
364 | global $domain, $version, $username, $skip_SM_header; |
60a46e65 |
365 | |
78f39e78 |
366 | /* if server var SERVER_NAME not available, use $domain */ |
60a46e65 |
367 | if(!sqGetGlobalVar('SERVER_NAME', $SERVER_NAME, SQ_SERVER)) { |
368 | $SERVER_NAME = $domain; |
78f39e78 |
369 | } |
60a46e65 |
370 | |
78f39e78 |
371 | sqGetGlobalVar('REMOTE_ADDR', $REMOTE_ADDR, SQ_SERVER); |
372 | sqGetGlobalVar('REMOTE_PORT', $REMOTE_PORT, SQ_SERVER); |
373 | sqGetGlobalVar('REMOTE_HOST', $REMOTE_HOST, SQ_SERVER); |
374 | sqGetGlobalVar('HTTP_VIA', $HTTP_VIA, SQ_SERVER); |
375 | sqGetGlobalVar('HTTP_X_FORWARDED_FOR', $HTTP_X_FORWARDED_FOR, SQ_SERVER); |
60a46e65 |
376 | |
78f39e78 |
377 | $rn = "\r\n"; |
223872cb |
378 | |
78f39e78 |
379 | /* This creates an RFC 822 date */ |
380 | $date = date('D, j M Y H:i:s ', mktime()) . $this->timezone(); |
381 | /* Create a message-id */ |
382 | $message_id = '<' . $REMOTE_PORT . '.' . $REMOTE_ADDR . '.'; |
caf6a9a4 |
383 | $message_id .= time() . '.squirrel@' . $REMOTE_ADDR .'>'; |
78f39e78 |
384 | /* Make an RFC822 Received: line */ |
385 | if (isset($REMOTE_HOST)) { |
386 | $received_from = "$REMOTE_HOST ([$REMOTE_ADDR])"; |
387 | } else { |
388 | $received_from = $REMOTE_ADDR; |
389 | } |
390 | if (isset($HTTP_VIA) || isset ($HTTP_X_FORWARDED_FOR)) { |
391 | if (!isset($HTTP_X_FORWARDED_FOR) || $HTTP_X_FORWARDED_FOR == '') { |
392 | $HTTP_X_FORWARDED_FOR = 'unknown'; |
393 | } |
394 | $received_from .= " (proxying for $HTTP_X_FORWARDED_FOR)"; |
395 | } |
396 | $header = array(); |
35aaf666 |
397 | if ( !isset($skip_SM_header) || !$skip_SM_header ) |
398 | { |
399 | $header[] = "Received: from $received_from" . $rn; |
400 | $header[] = " (SquirrelMail authenticated user $username);" . $rn; |
401 | $header[] = " by $SERVER_NAME with HTTP;" . $rn; |
402 | $header[] = " $date" . $rn; |
403 | } |
59387d1c |
404 | /* Insert the rest of the header fields */ |
405 | $header[] = 'Message-ID: '. $message_id . $rn; |
1274f430 |
406 | if ($reply_rfc822_header->message_id) { |
78f39e78 |
407 | $rep_message_id = $reply_rfc822_header->message_id; |
408 | // $this->strip_crlf($message_id); |
409 | $header[] = 'In-Reply-To: '.$rep_message_id . $rn; |
410 | $references = $this->calculate_references($reply_rfc822_header); |
411 | $header[] = 'References: '.$references . $rn; |
412 | } |
413 | $header[] = "Date: $date" . $rn; |
59387d1c |
414 | $header[] = 'Subject: '.encodeHeader($rfc822_header->subject) . $rn; |
ac47827c |
415 | $header[] = 'From: '. $rfc822_header->getAddr_s('from',",$rn ",true) . $rn; |
416 | |
417 | // folding address list [From|To|Cc|Bcc] happens by using ",$rn<space>" as delimiter |
418 | // Do not use foldLine for that. |
419 | |
420 | // RFC2822 if from contains more then 1 address |
59387d1c |
421 | if (count($rfc822_header->from) > 1) { |
215de78c |
422 | $header[] = 'Sender: '. $rfc822_header->getAddr_s('sender',',',true) . $rn; |
78f39e78 |
423 | } |
424 | if (count($rfc822_header->to)) { |
ac47827c |
425 | $header[] = 'To: '. $rfc822_header->getAddr_s('to',",$rn ",true) . $rn; |
78f39e78 |
426 | } |
427 | if (count($rfc822_header->cc)) { |
ac47827c |
428 | $header[] = 'Cc: '. $rfc822_header->getAddr_s('cc',",$rn ",true) . $rn; |
78f39e78 |
429 | } |
430 | if (count($rfc822_header->reply_to)) { |
215de78c |
431 | $header[] = 'Reply-To: '. $rfc822_header->getAddr_s('reply_to',',',true) . $rn; |
78f39e78 |
432 | } |
433 | /* Sendmail should return true. Default = false */ |
434 | $bcc = $this->getBcc(); |
435 | if (count($rfc822_header->bcc)) { |
ac47827c |
436 | $s = 'Bcc: '. $rfc822_header->getAddr_s('bcc',",$rn ",true) . $rn; |
78f39e78 |
437 | if (!$bcc) { |
78f39e78 |
438 | $raw_length += strlen($s); |
439 | } else { |
440 | $header[] = $s; |
441 | } |
442 | } |
72b004e6 |
443 | /* Identify SquirrelMail */ |
caf6a9a4 |
444 | $header[] = 'User-Agent: SquirrelMail/' . $version . $rn; |
78f39e78 |
445 | /* Do the MIME-stuff */ |
446 | $header[] = 'MIME-Version: 1.0' . $rn; |
447 | $contenttype = 'Content-Type: '. $rfc822_header->content_type->type0 .'/'. |
59387d1c |
448 | $rfc822_header->content_type->type1; |
78f39e78 |
449 | if (count($rfc822_header->content_type->properties)) { |
450 | foreach ($rfc822_header->content_type->properties as $k => $v) { |
451 | if ($k && $v) { |
72b004e6 |
452 | $contenttype .= ';' .$k.'='.$v; |
78f39e78 |
453 | } |
454 | } |
455 | } |
59387d1c |
456 | $header[] = $contenttype . $rn; |
78f39e78 |
457 | if ($encoding = $rfc822_header->encoding) { |
bfebbda2 |
458 | $header[] .= 'Content-Transfer-Encoding: ' . $encoding . $rn; |
72b004e6 |
459 | } |
59387d1c |
460 | if ($rfc822_header->dnt) { |
72b004e6 |
461 | $dnt = $rfc822_header->getAddr_s('dnt'); |
78f39e78 |
462 | /* Pegasus Mail */ |
463 | $header[] = 'X-Confirm-Reading-To: '.$dnt. $rn; |
464 | /* RFC 2298 */ |
465 | $header[] = 'Disposition-Notification-To: '.$dnt. $rn; |
466 | } |
467 | if ($rfc822_header->priority) { |
d1db3699 |
468 | switch($rfc822_header->priority) |
78f39e78 |
469 | { |
d1db3699 |
470 | case 1: |
471 | $header[] = 'X-Priority: 1 (Highest)'.$rn; |
472 | $header[] = 'Importance: High'. $rn; break; |
473 | case 3: |
474 | $header[] = 'X-Priority: 3 (Normal)'.$rn; |
475 | $header[] = 'Importance: Normal'. $rn; break; |
476 | case 5: |
477 | $header[] = 'X-Priority: 5 (Lowest)'.$rn; |
478 | $header[] = 'Importance: Low'. $rn; break; |
78f39e78 |
479 | default: break; |
480 | } |
481 | } |
72b004e6 |
482 | /* Insert headers from the $more_headers array */ |
78f39e78 |
483 | if(count($rfc822_header->more_headers)) { |
484 | reset($rfc822_header->more_headers); |
485 | foreach ($rfc822_header->more_headers as $k => $v) { |
486 | $header[] = $k.': '.$v .$rn; |
487 | } |
488 | } |
489 | $cnt = count($header); |
490 | $hdr_s = ''; |
5d2a7b15 |
491 | |
78f39e78 |
492 | for ($i = 0 ; $i < $cnt ; $i++) { |
5d2a7b15 |
493 | $sKey = substr($header[$i],0,strpos($header[$i],':')); |
494 | switch ($sKey) |
495 | { |
496 | case 'Message-ID': |
497 | case 'In-Reply_To': |
498 | $hdr_s .= $header[$i]; |
499 | break; |
500 | case 'References': |
501 | $sRefs = substr($header[$i],12); |
502 | $aRefs = explode(' ',$sRefs); |
503 | $sLine = 'References:'; |
504 | foreach ($aRefs as $sReference) { |
505 | if (strlen($sLine)+strlen($sReference) >76) { |
506 | $hdr_s .= $sLine; |
507 | $sLine = $rn . ' ' . $sReference; |
508 | } else { |
509 | $sLine .= ' '. $sReference; |
510 | } |
511 | } |
512 | $hdr_s .= $sLine; |
513 | break; |
ac47827c |
514 | case 'To': |
515 | case 'Cc': |
516 | case 'Bcc': |
517 | case 'From': |
518 | $hdr_s .= $header[$i]; |
519 | break; |
5d2a7b15 |
520 | default: $hdr_s .= $this->foldLine($header[$i], 78, str_pad('',4)); break; |
521 | } |
78f39e78 |
522 | } |
78f39e78 |
523 | $header = $hdr_s; |
524 | $header .= $rn; /* One blank line to separate header and body */ |
525 | $raw_length += strlen($header); |
526 | return $header; |
4960ec8e |
527 | } |
528 | |
72b004e6 |
529 | /** |
530 | * function foldLine - for cleanly folding of headerlines |
531 | * |
532 | * @param string $line |
533 | * @param integer $length length to fold the line at |
534 | * @param string $pre prefix the line with... |
535 | * |
3a70ee56 |
536 | * @return string $line folded line with trailing CRLF |
72b004e6 |
537 | */ |
1274f430 |
538 | function foldLine($line, $length, $pre='') { |
e4f9307a |
539 | $line = substr($line,0, -2); |
fb1d6cb6 |
540 | $length -= 2; /* do not fold between \r and \n */ |
541 | $cnt = strlen($line); |
542 | if ($cnt > $length) { /* try folding */ |
543 | $fold_string = "\r\n " . $pre; |
544 | $bFirstFold = false; |
545 | $aFoldLine = array(); |
546 | while (strlen($line) > $length) { |
547 | $fold = false; |
548 | /* handle encoded parts */ |
7060c7f0 |
549 | if (preg_match('/(=\?([^?]*)\?(Q|B)\?([^?]*)\?=)(\s+|.*)/Ui',$line,$regs)) { |
fb1d6cb6 |
550 | $fold_tmp = $regs[1]; |
7060c7f0 |
551 | if (!trim($regs[5])) { |
552 | $fold_tmp .= $regs[5]; |
553 | } |
fb1d6cb6 |
554 | $iPosEnc = strpos($line,$fold_tmp); |
555 | $iLengthEnc = strlen($fold_tmp); |
c422e824 |
556 | $iPosEncEnd = $iPosEnc+$iLengthEnc; |
557 | if ($iPosEnc < $length && (($iPosEncEnd) > $length)) { |
fb1d6cb6 |
558 | $fold = true; |
559 | /* fold just before the start of the encoded string */ |
7060c7f0 |
560 | if ($iPosEnc) { |
561 | $aFoldLine[] = substr($line,0,$iPosEnc); |
562 | } |
fb1d6cb6 |
563 | $line = substr($line,$iPosEnc); |
564 | if (!$bFirstFold) { |
565 | $bFirstFold = true; |
566 | $length -= strlen($fold_string); |
567 | } |
568 | if ($iLengthEnc > $length) { /* place the encoded |
569 | string on a separate line and do not fold inside it*/ |
223872cb |
570 | /* minimize foldstring */ |
571 | $fold_string = "\r\n "; |
572 | $aFoldLine[] = substr($line,0,$iLengthEnc); |
573 | $line = substr($line,$iLengthEnc); |
72b004e6 |
574 | } |
c422e824 |
575 | } else if ($iPosEnc < $length) { /* the encoded string fits into the foldlength */ |
fb1d6cb6 |
576 | /*remainder */ |
fb1d6cb6 |
577 | $sLineRem = substr($line,$iPosEncEnd,$length - $iPosEncEnd); |
c422e824 |
578 | if (preg_match('/^(=\?([^?]*)\?(Q|B)\?([^?]*)\?=)(.*)/Ui',$sLineRem) || !preg_match('/[=,;\s]/',$sLineRem)) { |
fb1d6cb6 |
579 | /*impossible to fold clean in the next part -> fold after the enc string */ |
7060c7f0 |
580 | $aFoldLine[] = substr($line,0,$iPosEncEnd); |
581 | $line = substr($line,$iPosEncEnd); |
fb1d6cb6 |
582 | $fold = true; |
583 | if (!$bFirstFold) { |
584 | $bFirstFold = true; |
585 | $length -= strlen($fold_string); |
586 | } |
72b004e6 |
587 | } |
fb1d6cb6 |
588 | } |
589 | } |
590 | if (!$fold) { |
591 | $line_tmp = substr($line,0,$length); |
592 | $iFoldPos = false; |
593 | /* try to fold at logical places */ |
594 | switch (true) |
595 | { |
596 | case ($iFoldPos = strrpos($line_tmp,',')): break; |
597 | case ($iFoldPos = strrpos($line_tmp,';')): break; |
598 | case ($iFoldPos = strrpos($line_tmp,' ')): break; |
599 | case ($iFoldPos = strrpos($line_tmp,'=')): break; |
600 | default: break; |
601 | } |
72b004e6 |
602 | |
fb1d6cb6 |
603 | if (!$iFoldPos) { /* clean folding didn't work */ |
604 | $iFoldPos = $length; |
605 | } |
606 | $aFoldLine[] = substr($line,0,$iFoldPos+1); |
607 | $line = substr($line,$iFoldPos+1); |
608 | if (!$bFirstFold) { |
609 | $bFirstFold = true; |
610 | $length -= strlen($fold_string); |
611 | } |
612 | } |
613 | } |
614 | /*$reconstruct the line */ |
615 | if ($line) { |
616 | $aFoldLine[] = $line; |
617 | } |
618 | $line = implode($fold_string,$aFoldLine); |
619 | } |
620 | return $line."\r\n"; |
621 | } |
3b53d87f |
622 | |
72b004e6 |
623 | /** |
624 | * function mimeBoundary - calculates the mime boundary to use |
625 | * |
626 | * This function will generate a random mime boundary base part |
627 | * for the message if the boundary has not already been set. |
628 | * |
3a70ee56 |
629 | * @return string $mimeBoundaryString random mime boundary string |
72b004e6 |
630 | */ |
59387d1c |
631 | function mimeBoundary () { |
78f39e78 |
632 | static $mimeBoundaryString; |
3b53d87f |
633 | |
78f39e78 |
634 | if ( !isset( $mimeBoundaryString ) || |
635 | $mimeBoundaryString == '') { |
636 | $mimeBoundaryString = '----=_' . date( 'YmdHis' ) . '_' . |
637 | mt_rand( 10000, 99999 ); |
638 | } |
639 | return $mimeBoundaryString; |
3b53d87f |
640 | } |
641 | |
72b004e6 |
642 | /** |
643 | * function timezone - Time offset for correct timezone |
644 | * |
3a70ee56 |
645 | * @return string $result with timezone and offset |
72b004e6 |
646 | */ |
59387d1c |
647 | function timezone () { |
78f39e78 |
648 | global $invert_time; |
649 | |
650 | $diff_second = date('Z'); |
651 | if ($invert_time) { |
652 | $diff_second = - $diff_second; |
653 | } |
654 | if ($diff_second > 0) { |
655 | $sign = '+'; |
656 | } else { |
657 | $sign = '-'; |
658 | } |
659 | $diff_second = abs($diff_second); |
660 | $diff_hour = floor ($diff_second / 3600); |
661 | $diff_minute = floor (($diff_second-3600*$diff_hour) / 60); |
662 | $zonename = '('.strftime('%Z').')'; |
72b004e6 |
663 | $result = sprintf ("%s%02d%02d %s", $sign, $diff_hour, $diff_minute, |
3b53d87f |
664 | $zonename); |
78f39e78 |
665 | return ($result); |
59387d1c |
666 | } |
3b53d87f |
667 | |
72b004e6 |
668 | /** |
669 | * function calculate_references - calculate correct Referer string |
670 | * |
671 | * @param Rfc822Header $hdr message header to calculate from |
672 | * |
3a70ee56 |
673 | * @return string $refer concatenated and trimmed Referer string |
72b004e6 |
674 | */ |
1274f430 |
675 | function calculate_references($hdr) { |
676 | $refer = $hdr->references; |
78f39e78 |
677 | $message_id = $hdr->message_id; |
678 | $in_reply_to = $hdr->in_reply_to; |
679 | if (strlen($refer) > 2) { |
680 | $refer .= ' ' . $message_id; |
681 | } else { |
682 | if ($in_reply_to) { |
683 | $refer .= $in_reply_to . ' ' . $message_id; |
684 | } else { |
685 | $refer .= $message_id; |
686 | } |
687 | } |
688 | trim($refer); |
689 | return $refer; |
59387d1c |
690 | } |
691 | } |
2b646597 |
692 | ?> |