1 /*
2 * PHP Sendmail for Windows.
3 *
4 * This file is rewriten specificly for PHPFI. Some functionality
5 * has been removed (MIME and file attachments). This code was
6 * modified from code based on code written by Jarle Aase.
7 *
8 * This class is based on the original code by Jarle Aase, see bellow:
9 * wSendmail.cpp It has been striped of some functionality to match
10 * the requirements of phpfi.
11 *
12 * Very simple SMTP Send-mail program for sending command-line level
13 * emails and CGI-BIN form response for the Windows platform.
14 *
15 * The complete wSendmail package with source code can be located
16 * from http://www.jgaa.com
17 *
18 */
19
20 /* $Id$ */
21
22 #include "php.h" /*php specific */
23 #include <stdio.h>
24 #include <stdlib.h>
25 #ifndef NETWARE
26 #include <winsock2.h>
27 #include "time.h"
28 # include <Ws2tcpip.h>
29 #else /* NETWARE */
30 #include <netware/sendmail_nw.h>
31 #endif /* NETWARE */
32 #include <string.h>
33 #include <math.h>
34 #ifndef NETWARE
35 #include <malloc.h>
36 #include <memory.h>
37 #include <winbase.h>
38 #endif /* NETWARE */
39 #include "sendmail.h"
40 #include "php_ini.h"
41 #include "inet.h"
42
43 #include "php_win32_globals.h"
44
45 #if HAVE_PCRE || HAVE_BUNDLED_PCRE
46 #include "ext/pcre/php_pcre.h"
47 #endif
48
49 #include "ext/standard/php_string.h"
50 #include "ext/date/php_date.h"
51
52 #define SENDMAIL_DEBUG 0
53
54 /*enum
55 {
56 DO_CONNECT = WM_USER +1
57 };
58 */
59
60 /* '*error_message' has to be passed around from php_mail() */
61 #define SMTP_ERROR_RESPONSE_SPEC "SMTP server response: %s"
62 /* Convinient way to handle error messages from the SMTP server.
63 response is ecalloc()d in Ack() itself and efree()d here
64 because the content is in *error_message now */
65 #define SMTP_ERROR_RESPONSE(response) { \
66 if (response && error_message) { \
67 if (NULL != (*error_message = ecalloc(1, sizeof(SMTP_ERROR_RESPONSE_SPEC) + strlen(response)))) { \
68 snprintf(*error_message, sizeof(SMTP_ERROR_RESPONSE_SPEC) + strlen(response), SMTP_ERROR_RESPONSE_SPEC, response); \
69 } \
70 efree(response); \
71 } \
72 }
73 #define SMTP_SKIP_SPACE(str) { while (isspace(*str)) { str++; } }
74
75
76 char seps[] = " ,\t\n";
77 #ifndef NETWARE
78 char *php_mailer = "PHP 7 WIN32";
79 #else
80 char *php_mailer = "PHP 7 NetWare";
81 #endif /* NETWARE */
82
83 /* Error messages */
84 static char *ErrorMessages[] =
85 {
86 {"Success"}, /* 0 */
87 {"Bad arguments from form"}, /* 1 */
88 {"Unable to open temporary mailfile for read"},
89 {"Failed to Start Sockets"},
90 {"Failed to Resolve Host"},
91 {"Failed to obtain socket handle"}, /* 5 */
92 {"Failed to connect to mailserver, verify your \"SMTP\" setting in php.ini"},
93 {"Failed to Send"},
94 {"Failed to Receive"},
95 {"Server Error"},
96 {"Failed to resolve the host IP name"}, /* 10 */
97 {"Out of memory"},
98 {"Unknown error"},
99 {"Bad Message Contents"},
100 {"Bad Message Subject"},
101 {"Bad Message destination"}, /* 15 */
102 {"Bad Message Return Path"},
103 {"Bad Mail Host"},
104 {"Bad Message File"},
105 {"\"sendmail_from\" not set in php.ini or custom \"From:\" header missing"},
106 {"Mailserver rejected our \"sendmail_from\" setting"}, /* 20 */
107 {"Error while trimming mail header with PCRE, please file a bug report at http://bugs.php.net/"} /* 21 */
108 };
109
110 /* This pattern converts all single occurrences of \n (Unix)
111 * withour a leading \r to \r\n and all occurrences of \r (Mac)
112 * without a trailing \n to \r\n
113 * Thx to Nibbler from ircnet/#linuxger
114 */
115 #define PHP_WIN32_MAIL_UNIFY_PATTERN "/(\r\n?)|\n/"
116 #define PHP_WIN32_MAIL_UNIFY_REPLACE "\r\n"
117
118 /* This pattern removes \r\n from the start of the string,
119 * \r\n from the end of the string and also makes sure every line
120 * is only wrapped with a single \r\n (thus reduces multiple
121 * occurrences of \r\n between lines to a single \r\n) */
122 #define PHP_WIN32_MAIL_RMVDBL_PATTERN "/^\r\n|(\r\n)+$/m"
123 #define PHP_WIN32_MAIL_RMVDBL_REPLACE ""
124
125 /* This pattern escapes \n. inside the message body. It prevents
126 * premature end of message if \n.\n or \r\n.\r\n is encountered
127 * and ensures that \n. sequences are properly displayed in the
128 * message body. */
129 #define PHP_WIN32_MAIL_DOT_PATTERN "\n."
130 #define PHP_WIN32_MAIL_DOT_REPLACE "\n.."
131
132 /* This function is meant to unify the headers passed to to mail()
133 * This means, use PCRE to transform single occurrences of \n or \r in \r\n
134 * As a second step we also eleminate all \r\n occurrences which are:
135 * 1) At the start of the header
136 * 2) At the end of the header
137 * 3) Two or more occurrences in the header are removed so only one is left
138 *
139 * Returns NULL on error, or the new char* buffer on success.
140 * You have to take care and efree() the buffer on your own.
141 */
php_win32_mail_trim_header(char * header)142 static zend_string *php_win32_mail_trim_header(char *header)
143 {
144
145 #if HAVE_PCRE || HAVE_BUNDLED_PCRE
146
147 zend_string *result, *result2;
148 zval replace;
149 zend_string *regex;
150
151 if (!header) {
152 return NULL;
153 }
154
155 ZVAL_STRINGL(&replace, PHP_WIN32_MAIL_UNIFY_REPLACE, strlen(PHP_WIN32_MAIL_UNIFY_REPLACE));
156 regex = zend_string_init(PHP_WIN32_MAIL_UNIFY_PATTERN, sizeof(PHP_WIN32_MAIL_UNIFY_PATTERN)-1, 0);
157
158 result = php_pcre_replace(regex,
159 NULL, header, (int)strlen(header),
160 &replace,
161 0,
162 -1,
163 NULL);
164
165 zval_ptr_dtor(&replace);
166 zend_string_release(regex);
167
168 if (NULL == result) {
169 return NULL;
170 }
171
172 ZVAL_STRING(&replace, PHP_WIN32_MAIL_RMVDBL_PATTERN);
173 regex = zend_string_init(PHP_WIN32_MAIL_RMVDBL_PATTERN, sizeof(PHP_WIN32_MAIL_RMVDBL_PATTERN)-1, 0);
174
175 result2 = php_pcre_replace(regex,
176 result, ZSTR_VAL(result), (int)ZSTR_LEN(result),
177 &replace,
178 0,
179 -1,
180 NULL);
181 zval_ptr_dtor(&replace);
182 zend_string_release(regex);
183 zend_string_release(result);
184
185 return result2;
186 #else
187 /* In case we don't have PCRE support (for whatever reason...) simply do nothing and return the unmodified header */
188 return estrdup(header);
189 #endif
190 }
191
192 /*********************************************************************
193 // Name: TSendMail
194 // Input: 1) host: Name of the mail host where the SMTP server resides
195 // max accepted length of name = 256
196 // 2) appname: Name of the application to use in the X-mailer
197 // field of the message. if NULL is given the application
198 // name is used as given by the GetCommandLine() function
199 // max accespted length of name = 100
200 // Output: 1) error: Returns the error code if something went wrong or
201 // SUCCESS otherwise.
202 //
203 // See SendText() for additional args!
204 //********************************************************************/
TSendMail(char * host,int * error,char ** error_message,char * headers,char * Subject,char * mailTo,char * data,char * mailCc,char * mailBcc,char * mailRPath)205 PHPAPI int TSendMail(char *host, int *error, char **error_message,
206 char *headers, char *Subject, char *mailTo, char *data,
207 char *mailCc, char *mailBcc, char *mailRPath)
208 {
209 int ret;
210 char *RPath = NULL;
211 zend_string *headers_lc = NULL, *headers_trim = NULL; /* headers_lc is only created if we've a header at all */
212 char *pos1 = NULL, *pos2 = NULL;
213
214 if (host == NULL) {
215 *error = BAD_MAIL_HOST;
216 return FAILURE;
217 } else if (strlen(host) >= HOST_NAME_LEN) {
218 *error = BAD_MAIL_HOST;
219 return FAILURE;
220 } else {
221 strcpy(PW32G(mail_host), host);
222 }
223
224 if (headers) {
225 char *pos = NULL;
226
227 /* Use PCRE to trim the header into the right format */
228 if (NULL == (headers_trim = php_win32_mail_trim_header(headers))) {
229 *error = W32_SM_PCRE_ERROR;
230 return FAILURE;
231 }
232
233 /* Create a lowercased header for all the searches so we're finally case
234 * insensitive when searching for a pattern. */
235 headers_lc = zend_string_tolower(headers_trim);
236 }
237
238 /* Fall back to sendmail_from php.ini setting */
239 if (mailRPath && *mailRPath) {
240 RPath = estrdup(mailRPath);
241 } else if (INI_STR("sendmail_from")) {
242 RPath = estrdup(INI_STR("sendmail_from"));
243 } else if (headers_lc) {
244 int found = 0;
245 char *lookup = ZSTR_VAL(headers_lc);
246
247 while (lookup) {
248 pos1 = strstr(lookup, "from:");
249
250 if (!pos1) {
251 break;
252 } else if (pos1 != ZSTR_VAL(headers_lc) && *(pos1-1) != '\n') {
253 if (strlen(pos1) >= sizeof("from:")) {
254 lookup = pos1 + sizeof("from:");
255 continue;
256 } else {
257 break;
258 }
259 }
260
261 found = 1;
262
263 /* Real offset is memaddress from the original headers + difference of
264 * string found in the lowercase headrs + 5 characters to jump over
265 * the from: */
266 pos1 = headers + (pos1 - lookup) + 5;
267 if (NULL == (pos2 = strstr(pos1, "\r\n"))) {
268 RPath = estrndup(pos1, strlen(pos1));
269 } else {
270 RPath = estrndup(pos1, pos2 - pos1);
271 }
272
273 break;
274 }
275
276 if (!found) {
277 if (headers_lc) {
278 zend_string_free(headers_lc);
279 }
280 *error = W32_SM_SENDMAIL_FROM_NOT_SET;
281 return FAILURE;
282 }
283 }
284
285 /* attempt to connect with mail host */
286 *error = MailConnect();
287 if (*error != 0) {
288 if (RPath) {
289 efree(RPath);
290 }
291 if (headers) {
292 zend_string_free(headers_trim);
293 zend_string_free(headers_lc);
294 }
295 /* 128 is safe here, the specifier in snprintf isn't longer than that */
296 if (NULL == (*error_message = ecalloc(1, HOST_NAME_LEN + 128))) {
297 return FAILURE;
298 }
299 snprintf(*error_message, HOST_NAME_LEN + 128,
300 "Failed to connect to mailserver at \"%s\" port %d, verify your \"SMTP\" "
301 "and \"smtp_port\" setting in php.ini or use ini_set()",
302 PW32G(mail_host), !INI_INT("smtp_port") ? 25 : INI_INT("smtp_port"));
303 return FAILURE;
304 } else {
305 ret = SendText(RPath, Subject, mailTo, mailCc, mailBcc, data, headers ? ZSTR_VAL(headers_trim) : NULL, headers ? ZSTR_VAL(headers_lc) : NULL, error_message);
306 TSMClose();
307 if (RPath) {
308 efree(RPath);
309 }
310 if (headers) {
311 zend_string_free(headers_trim);
312 zend_string_free(headers_lc);
313 }
314 if (ret != SUCCESS) {
315 *error = ret;
316 return FAILURE;
317 }
318 return SUCCESS;
319 }
320 }
321
322 //********************************************************************
323 // Name: TSendMail::~TSendMail
324 // Input:
325 // Output:
326 // Description: DESTRUCTOR
327 // Author/Date: jcar 20/9/96
328 // History:
329 //********************************************************************/
TSMClose()330 PHPAPI void TSMClose()
331 {
332 Post("QUIT\r\n");
333 Ack(NULL);
334 /* to guarantee that the cleanup is not made twice and
335 compomise the rest of the application if sockets are used
336 elesewhere
337 */
338
339 shutdown(PW32G(mail_socket), 0);
340 closesocket(PW32G(mail_socket));
341 }
342
343
344 /*********************************************************************
345 // Name: char *GetSMErrorText
346 // Input: Error index returned by the menber functions
347 // Output: pointer to a string containing the error description
348 // Description:
349 // Author/Date: jcar 20/9/96
350 // History:
351 //*******************************************************************/
GetSMErrorText(int index)352 PHPAPI char *GetSMErrorText(int index)
353 {
354 if (MIN_ERROR_INDEX <= index && index < MAX_ERROR_INDEX) {
355 return (ErrorMessages[index]);
356
357 } else {
358 return (ErrorMessages[UNKNOWN_ERROR]);
359
360 }
361 }
362
363 PHPAPI zend_string *php_str_to_str(char *haystack, size_t length, char *needle,
364 size_t needle_len, char *str, size_t str_len);
365
366
367 /*********************************************************************
368 // Name: SendText
369 // Input: 1) RPath: return path of the message
370 // Is used to fill the "Return-Path" and the
371 // "X-Sender" fields of the message.
372 // 2) Subject: Subject field of the message. If NULL is given
373 // the subject is set to "No Subject"
374 // 3) mailTo: Destination address
375 // 4) data: Null terminated string containing the data to be send.
376 // 5,6) headers of the message. Note that the second
377 // parameter, headers_lc, is actually a lowercased version of
378 // headers. The should match exactly (in terms of length),
379 // only differ in case
380 // Output: Error code or SUCCESS
381 // Description:
382 // Author/Date: jcar 20/9/96
383 // History:
384 //*******************************************************************/
SendText(char * RPath,char * Subject,char * mailTo,char * mailCc,char * mailBcc,char * data,char * headers,char * headers_lc,char ** error_message)385 static int SendText(char *RPath, char *Subject, char *mailTo, char *mailCc, char *mailBcc, char *data,
386 char *headers, char *headers_lc, char **error_message)
387 {
388 int res;
389 char *p;
390 char *tempMailTo, *token, *pos1, *pos2;
391 char *server_response = NULL;
392 char *stripped_header = NULL;
393 zend_string *data_cln;
394
395 /* check for NULL parameters */
396 if (data == NULL)
397 return (BAD_MSG_CONTENTS);
398 if (mailTo == NULL)
399 return (BAD_MSG_DESTINATION);
400 if (RPath == NULL)
401 return (BAD_MSG_RPATH);
402
403 /* simple checks for the mailto address */
404 /* have ampersand ? */
405 /* mfischer, 20020514: I commented this out because it really
406 seems bogus. Only a username for example may still be a
407 valid address at the destination system.
408 if (strchr(mailTo, '@') == NULL)
409 return (BAD_MSG_DESTINATION);
410 */
411
412 snprintf(PW32G(mail_buffer), sizeof(PW32G(mail_buffer)), "HELO %s\r\n", PW32G(mail_local_host));
413
414 /* in the beginning of the dialog */
415 /* attempt reconnect if the first Post fail */
416 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
417 int err = MailConnect();
418 if (0 != err) {
419 return (FAILED_TO_SEND);
420 }
421
422 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
423 return (res);
424 }
425 }
426 if ((res = Ack(&server_response)) != SUCCESS) {
427 SMTP_ERROR_RESPONSE(server_response);
428 return (res);
429 }
430
431 SMTP_SKIP_SPACE(RPath);
432 FormatEmailAddress(PW32G(mail_buffer), RPath, "MAIL FROM:<%s>\r\n");
433 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
434 return (res);
435 }
436 if ((res = Ack(&server_response)) != SUCCESS) {
437 SMTP_ERROR_RESPONSE(server_response);
438 return W32_SM_SENDMAIL_FROM_MALFORMED;
439 }
440
441 tempMailTo = estrdup(mailTo);
442 /* Send mail to all rcpt's */
443 token = strtok(tempMailTo, ",");
444 while (token != NULL)
445 {
446 SMTP_SKIP_SPACE(token);
447 FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
448 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
449 efree(tempMailTo);
450 return (res);
451 }
452 if ((res = Ack(&server_response)) != SUCCESS) {
453 SMTP_ERROR_RESPONSE(server_response);
454 efree(tempMailTo);
455 return (res);
456 }
457 token = strtok(NULL, ",");
458 }
459 efree(tempMailTo);
460
461 if (mailCc && *mailCc) {
462 tempMailTo = estrdup(mailCc);
463 /* Send mail to all rcpt's */
464 token = strtok(tempMailTo, ",");
465 while (token != NULL)
466 {
467 SMTP_SKIP_SPACE(token);
468 FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
469 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
470 efree(tempMailTo);
471 return (res);
472 }
473 if ((res = Ack(&server_response)) != SUCCESS) {
474 SMTP_ERROR_RESPONSE(server_response);
475 efree(tempMailTo);
476 return (res);
477 }
478 token = strtok(NULL, ",");
479 }
480 efree(tempMailTo);
481 }
482 /* Send mail to all Cc rcpt's */
483 else if (headers && (pos1 = strstr(headers_lc, "cc:")) && ((pos1 == headers_lc) || (*(pos1-1) == '\n'))) {
484 /* Real offset is memaddress from the original headers + difference of
485 * string found in the lowercase headrs + 3 characters to jump over
486 * the cc: */
487 pos1 = headers + (pos1 - headers_lc) + 3;
488 if (NULL == (pos2 = strstr(pos1, "\r\n"))) {
489 tempMailTo = estrndup(pos1, strlen(pos1));
490 } else {
491 tempMailTo = estrndup(pos1, pos2 - pos1);
492 }
493
494 token = strtok(tempMailTo, ",");
495 while (token != NULL)
496 {
497 SMTP_SKIP_SPACE(token);
498 FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
499 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
500 efree(tempMailTo);
501 return (res);
502 }
503 if ((res = Ack(&server_response)) != SUCCESS) {
504 SMTP_ERROR_RESPONSE(server_response);
505 efree(tempMailTo);
506 return (res);
507 }
508 token = strtok(NULL, ",");
509 }
510 efree(tempMailTo);
511 }
512
513 /* Send mail to all Bcc rcpt's
514 This is basically a rip of the Cc code above.
515 Just don't forget to remove the Bcc: from the header afterwards. */
516 if (mailBcc && *mailBcc) {
517 tempMailTo = estrdup(mailBcc);
518 /* Send mail to all rcpt's */
519 token = strtok(tempMailTo, ",");
520 while (token != NULL)
521 {
522 SMTP_SKIP_SPACE(token);
523 FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
524 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
525 efree(tempMailTo);
526 return (res);
527 }
528 if ((res = Ack(&server_response)) != SUCCESS) {
529 SMTP_ERROR_RESPONSE(server_response);
530 efree(tempMailTo);
531 return (res);
532 }
533 token = strtok(NULL, ",");
534 }
535 efree(tempMailTo);
536 }
537 else if (headers) {
538 if ((pos1 = strstr(headers_lc, "bcc:")) && (pos1 == headers_lc || *(pos1-1) == '\n')) {
539 /* Real offset is memaddress from the original headers + difference of
540 * string found in the lowercase headrs + 4 characters to jump over
541 * the bcc: */
542 pos1 = headers + (pos1 - headers_lc) + 4;
543 if (NULL == (pos2 = strstr(pos1, "\r\n"))) {
544 tempMailTo = estrndup(pos1, strlen(pos1));
545 /* Later, when we remove the Bcc: out of the
546 header we know it was the last thing. */
547 pos2 = pos1;
548 } else {
549 tempMailTo = estrndup(pos1, pos2 - pos1);
550 }
551
552 token = strtok(tempMailTo, ",");
553 while (token != NULL)
554 {
555 SMTP_SKIP_SPACE(token);
556 FormatEmailAddress(PW32G(mail_buffer), token, "RCPT TO:<%s>\r\n");
557 if ((res = Post(PW32G(mail_buffer))) != SUCCESS) {
558 efree(tempMailTo);
559 return (res);
560 }
561 if ((res = Ack(&server_response)) != SUCCESS) {
562 SMTP_ERROR_RESPONSE(server_response);
563 efree(tempMailTo);
564 return (res);
565 }
566 token = strtok(NULL, ",");
567 }
568 efree(tempMailTo);
569
570 /* Now that we've identified that we've a Bcc list,
571 remove it from the current header. */
572 if (NULL == (stripped_header = ecalloc(1, strlen(headers)))) {
573 return OUT_OF_MEMORY;
574 }
575 /* headers = point to string start of header
576 pos1 = pointer IN headers where the Bcc starts
577 '4' = Length of the characters 'bcc:'
578 Because we've added +4 above for parsing the Emails
579 we've to subtract them here. */
580 memcpy(stripped_header, headers, pos1 - headers - 4);
581 if (pos1 != pos2) {
582 /* if pos1 != pos2 , pos2 points to the rest of the headers.
583 Since pos1 != pos2 if "\r\n" was found, we know those characters
584 are there and so we jump over them (else we would generate a new header
585 which would look like "\r\n\r\n". */
586 memcpy(stripped_header + (pos1 - headers - 4), pos2 + 2, strlen(pos2) - 2);
587 }
588 }
589 }
590
591 /* Simplify the code that we create a copy of stripped_header no matter if
592 we actually strip something or not. So we've a single efree() later. */
593 if (headers && !stripped_header) {
594 if (NULL == (stripped_header = estrndup(headers, strlen(headers)))) {
595 return OUT_OF_MEMORY;
596 }
597 }
598
599 if ((res = Post("DATA\r\n")) != SUCCESS) {
600 if (stripped_header) {
601 efree(stripped_header);
602 }
603 return (res);
604 }
605 if ((res = Ack(&server_response)) != SUCCESS) {
606 SMTP_ERROR_RESPONSE(server_response);
607 if (stripped_header) {
608 efree(stripped_header);
609 }
610 return (res);
611 }
612
613 /* send message header */
614 if (Subject == NULL) {
615 res = PostHeader(RPath, "No Subject", mailTo, stripped_header);
616 } else {
617 res = PostHeader(RPath, Subject, mailTo, stripped_header);
618 }
619 if (stripped_header) {
620 efree(stripped_header);
621 }
622 if (res != SUCCESS) {
623 return (res);
624 }
625
626 /* Escape \n. sequences
627 * We use php_str_to_str() and not php_str_replace_in_subject(), since the latter
628 * uses ZVAL as it's parameters */
629 data_cln = php_str_to_str(data, strlen(data), PHP_WIN32_MAIL_DOT_PATTERN, sizeof(PHP_WIN32_MAIL_DOT_PATTERN) - 1,
630 PHP_WIN32_MAIL_DOT_REPLACE, sizeof(PHP_WIN32_MAIL_DOT_REPLACE) - 1);
631 if (!data_cln) {
632 data_cln = ZSTR_EMPTY_ALLOC();
633 }
634
635 /* send message contents in 1024 chunks */
636 {
637 char c, *e2, *e = ZSTR_VAL(data_cln) + ZSTR_LEN(data_cln);
638 p = ZSTR_VAL(data_cln);
639
640 while (e - p > 1024) {
641 e2 = p + 1024;
642 c = *e2;
643 *e2 = '\0';
644 if ((res = Post(p)) != SUCCESS) {
645 zend_string_free(data_cln);
646 return(res);
647 }
648 *e2 = c;
649 p = e2;
650 }
651 if ((res = Post(p)) != SUCCESS) {
652 zend_string_free(data_cln);
653 return(res);
654 }
655 }
656
657 zend_string_free(data_cln);
658
659 /*send termination dot */
660 if ((res = Post("\r\n.\r\n")) != SUCCESS)
661 return (res);
662 if ((res = Ack(&server_response)) != SUCCESS) {
663 SMTP_ERROR_RESPONSE(server_response);
664 return (res);
665 }
666
667 return (SUCCESS);
668 }
669
addToHeader(char ** header_buffer,const char * specifier,char * string)670 static int addToHeader(char **header_buffer, const char *specifier, char *string)
671 {
672 if (NULL == (*header_buffer = erealloc(*header_buffer, strlen(*header_buffer) + strlen(specifier) + strlen(string) + 1))) {
673 return 0;
674 }
675 sprintf(*header_buffer + strlen(*header_buffer), specifier, string);
676 return 1;
677 }
678
679 /*********************************************************************
680 // Name: PostHeader
681 // Input: 1) return path
682 // 2) Subject
683 // 3) destination address
684 // 4) headers
685 // Output: Error code or Success
686 // Description:
687 // Author/Date: jcar 20/9/96
688 // History:
689 //********************************************************************/
PostHeader(char * RPath,char * Subject,char * mailTo,char * xheaders)690 static int PostHeader(char *RPath, char *Subject, char *mailTo, char *xheaders)
691 {
692 /* Print message header according to RFC 822 */
693 /* Return-path, Received, Date, From, Subject, Sender, To, cc */
694
695 int res;
696 char *header_buffer;
697 char *headers_lc = NULL;
698 size_t i;
699
700 if (xheaders) {
701 size_t headers_lc_len;
702
703 if (NULL == (headers_lc = estrdup(xheaders))) {
704 return OUT_OF_MEMORY;
705 }
706
707 headers_lc_len = strlen(headers_lc);
708
709 for (i = 0; i < headers_lc_len; i++) {
710 headers_lc[i] = tolower(headers_lc[i]);
711 }
712 }
713
714 header_buffer = ecalloc(1, MAIL_BUFFER_SIZE);
715
716 if (!xheaders || !strstr(headers_lc, "date:")) {
717 time_t tNow = time(NULL);
718 zend_string *dt = php_format_date("r", 1, tNow, 1);
719
720 snprintf(header_buffer, MAIL_BUFFER_SIZE, "Date: %s\r\n", ZSTR_VAL(dt));
721 zend_string_free(dt);
722 }
723
724 if (!headers_lc || !strstr(headers_lc, "from:")) {
725 if (!addToHeader(&header_buffer, "From: %s\r\n", RPath)) {
726 goto PostHeader_outofmem;
727 }
728 }
729 if (!addToHeader(&header_buffer, "Subject: %s\r\n", Subject)) {
730 goto PostHeader_outofmem;
731 }
732
733 /* Only add the To: field from the $to parameter if isn't in the custom headers */
734 if ((headers_lc && (!strstr(headers_lc, "\r\nto:") && (strncmp(headers_lc, "to:", 3) != 0))) || !headers_lc) {
735 if (!addToHeader(&header_buffer, "To: %s\r\n", mailTo)) {
736 goto PostHeader_outofmem;
737 }
738 }
739 if (xheaders) {
740 if (!addToHeader(&header_buffer, "%s\r\n", xheaders)) {
741 goto PostHeader_outofmem;
742 }
743 }
744
745 if (headers_lc) {
746 efree(headers_lc);
747 }
748 if ((res = Post(header_buffer)) != SUCCESS) {
749 efree(header_buffer);
750 return (res);
751 }
752 efree(header_buffer);
753
754 if ((res = Post("\r\n")) != SUCCESS) {
755 return (res);
756 }
757
758 return (SUCCESS);
759
760 PostHeader_outofmem:
761 if (headers_lc) {
762 efree(headers_lc);
763 }
764 return OUT_OF_MEMORY;
765 }
766
767
768
769 /*********************************************************************
770 // Name: MailConnect
771 // Input: None
772 // Output: None
773 // Description: Connect to the mail host and receive the welcome message.
774 // Author/Date: jcar 20/9/96
775 // History:
776 //********************************************************************/
MailConnect()777 static int MailConnect()
778 {
779
780 int res, namelen;
781 short portnum;
782 struct hostent *ent;
783 IN_ADDR addr;
784 #ifdef HAVE_IPV6
785 IN6_ADDR addr6;
786 #endif
787 SOCKADDR_IN sock_in;
788
789 #if SENDMAIL_DEBUG
790 return 0;
791 #endif
792
793 /* Create Socket */
794 if ((PW32G(mail_socket) = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
795 return (FAILED_TO_OBTAIN_SOCKET_HANDLE);
796 }
797
798 /* Get our own host name */
799 if (gethostname(PW32G(mail_local_host), HOST_NAME_LEN)) {
800 closesocket(PW32G(mail_socket));
801 return (FAILED_TO_GET_HOSTNAME);
802 }
803
804 ent = gethostbyname(PW32G(mail_local_host));
805
806 if (!ent) {
807 closesocket(PW32G(mail_socket));
808 return (FAILED_TO_GET_HOSTNAME);
809 }
810
811 namelen = (int)strlen(ent->h_name);
812
813 #ifdef HAVE_IPV6
814 if (inet_pton(AF_INET, ent->h_name, &addr) == 1 || inet_pton(AF_INET6, ent->h_name, &addr6) == 1)
815 #else
816 if (inet_pton(AF_INET, ent->h_name, &addr) == 1)
817 #endif
818 {
819 if (namelen + 2 >= HOST_NAME_LEN) {
820 closesocket(PW32G(mail_socket));
821 return (FAILED_TO_GET_HOSTNAME);
822 }
823
824 strcpy(PW32G(mail_local_host), "[");
825 strcpy(PW32G(mail_local_host) + 1, ent->h_name);
826 strcpy(PW32G(mail_local_host) + namelen + 1, "]");
827 } else {
828 if (namelen >= HOST_NAME_LEN) {
829 closesocket(PW32G(mail_socket));
830 return (FAILED_TO_GET_HOSTNAME);
831 }
832
833 strcpy(PW32G(mail_local_host), ent->h_name);
834 }
835
836 /* Resolve the servers IP */
837 /*
838 if (!isdigit(PW32G(mail_host)[0])||!gethostbyname(PW32G(mail_host)))
839 {
840 return (FAILED_TO_RESOLVE_HOST);
841 }
842 */
843
844 portnum = (short) INI_INT("smtp_port");
845 if (!portnum) {
846 portnum = 25;
847 }
848
849 /* Connect to server */
850 sock_in.sin_family = AF_INET;
851 sock_in.sin_port = htons(portnum);
852 sock_in.sin_addr.S_un.S_addr = GetAddr(PW32G(mail_host));
853
854 if (connect(PW32G(mail_socket), (LPSOCKADDR) & sock_in, sizeof(sock_in))) {
855 closesocket(PW32G(mail_socket));
856 return (FAILED_TO_CONNECT);
857 }
858
859 /* receive Server welcome message */
860 res = Ack(NULL);
861 return (res);
862 }
863
864
865 /*********************************************************************
866 // Name: Post
867 // Input:
868 // Output:
869 // Description:
870 // Author/Date: jcar 20/9/96
871 // History:
872 //********************************************************************/
Post(LPCSTR msg)873 static int Post(LPCSTR msg)
874 {
875 int len = (int)strlen(msg);
876 int slen;
877 int index = 0;
878
879 #if SENDMAIL_DEBUG
880 if (msg)
881 printf("POST: '%s'\n", msg);
882 return (SUCCESS);
883 #endif
884
885 while (len > 0) {
886 if ((slen = send(PW32G(mail_socket), msg + index, len, 0)) < 1)
887 return (FAILED_TO_SEND);
888 len -= slen;
889 index += slen;
890 }
891 return (SUCCESS);
892 }
893
894
895
896 /*********************************************************************
897 // Name: Ack
898 // Input:
899 // Output:
900 // Description:
901 // Get the response from the server. We only want to know if the
902 // last command was successful.
903 // Author/Date: jcar 20/9/96
904 // History:
905 //********************************************************************/
Ack(char ** server_response)906 static int Ack(char **server_response)
907 {
908 ZEND_TLS char buf[MAIL_BUFFER_SIZE];
909 int rlen;
910 int Index = 0;
911 int Received = 0;
912
913 #if SENDMAIL_DEBUG
914 return (SUCCESS);
915 #endif
916
917 again:
918
919 if ((rlen = recv(PW32G(mail_socket), buf + Index, ((MAIL_BUFFER_SIZE) - 1) - Received, 0)) < 1) {
920 return (FAILED_TO_RECEIVE);
921 }
922 Received += rlen;
923 buf[Received] = 0;
924 /*err_msg fprintf(stderr,"Received: (%d bytes) %s", rlen, buf + Index); */
925
926 /* Check for newline */
927 Index += rlen;
928
929 /* SMPT RFC says \r\n is the only valid line ending, who are we to argue ;)
930 * The response code must contain at least 5 characters ex. 220\r\n */
931 if (Received < 5 || buf[Received - 1] != '\n' || buf[Received - 2] != '\r') {
932 goto again;
933 }
934
935 if (buf[0] > '3') {
936 /* If we've a valid pointer, return the SMTP server response so the error message contains more information */
937 if (server_response) {
938 int dec = 0;
939 /* See if we have something like \r, \n, \r\n or \n\r at the end of the message and chop it off */
940 if (Received > 2) {
941 if (buf[Received-1] == '\n' || buf[Received-1] == '\r') {
942 dec++;
943 if (buf[Received-2] == '\r' || buf[Received-2] == '\n') {
944 dec++;
945 }
946 }
947
948 }
949 *server_response = estrndup(buf, Received - dec);
950 }
951 return (SMTP_SERVER_ERROR);
952 }
953
954 return (SUCCESS);
955 }
956
957
958 /*********************************************************************
959 // Name: unsigned long GetAddr (LPSTR szHost)
960 // Input:
961 // Output:
962 // Description: Given a string, it will return an IP address.
963 // - first it tries to convert the string directly
964 // - if that fails, it tries o resolve it as a hostname
965 //
966 // WARNING: gethostbyname() is a blocking function
967 // Author/Date: jcar 20/9/96
968 // History:
969 //********************************************************************/
GetAddr(LPSTR szHost)970 static unsigned long GetAddr(LPSTR szHost)
971 {
972 LPHOSTENT lpstHost;
973 u_long lAddr = INADDR_ANY;
974
975 /* check that we have a string */
976 if (*szHost) {
977
978 /* check for a dotted-IP address string */
979 lAddr = inet_addr(szHost);
980
981 /* If not an address, then try to resolve it as a hostname */
982 if ((lAddr == INADDR_NONE) && (strcmp(szHost, "255.255.255.255"))) {
983
984 lpstHost = gethostbyname(szHost);
985 if (lpstHost) { /* success */
986 lAddr = *((u_long FAR *) (lpstHost->h_addr));
987 } else {
988 lAddr = INADDR_ANY; /* failure */
989 }
990 }
991 }
992 return (lAddr);
993 } /* end GetAddr() */
994
995
996 /*********************************************************************
997 // Name: int FormatEmailAddress
998 // Input:
999 // Output:
1000 // Description: Formats the email address to remove any content ouside
1001 // of the angle brackets < > as per RFC 2821.
1002 //
1003 // Returns the invalidly formatted mail address if the < > are
1004 // unbalanced (the SMTP server should reject it if it's out of spec.)
1005 //
1006 // Author/Date: garretts 08/18/2009
1007 // History:
1008 //********************************************************************/
FormatEmailAddress(char * Buf,char * EmailAddress,char * FormatString)1009 static int FormatEmailAddress(char* Buf, char* EmailAddress, char* FormatString) {
1010 char *tmpAddress1, *tmpAddress2;
1011 int result;
1012
1013 if( (tmpAddress1 = strchr(EmailAddress, '<')) && (tmpAddress2 = strchr(tmpAddress1, '>')) ) {
1014 *tmpAddress2 = 0; // terminate the string temporarily.
1015 result = snprintf(Buf, MAIL_BUFFER_SIZE, FormatString , tmpAddress1+1);
1016 *tmpAddress2 = '>'; // put it back the way it was.
1017 return result;
1018 }
1019 return snprintf(Buf, MAIL_BUFFER_SIZE , FormatString , EmailAddress );
1020 } /* end FormatEmailAddress() */
1021
1022 /*
1023 * Local variables:
1024 * tab-width: 4
1025 * c-basic-offset: 4
1026 * End:
1027 * vim600: sw=4 ts=4 fdm=marker
1028 * vim<600: sw=4 ts=4
1029 */
1030
