11 #include <sys/types.h>
20 #include "sysdep_decls.h"
21 #include "citserver.h"
24 #include "dynloader.h"
31 #include "internet_addressing.h"
34 #include "clientsocket.h"
37 struct citsmtp { /* Information about the current session */
40 struct usersupp vrfy_buffer;
44 int number_of_recipients;
48 enum { /* Command states for login authentication */
54 enum { /* Delivery modes */
59 #define SMTP ((struct citsmtp *)CtdlGetUserData(SYM_SMTP))
60 #define SMTP_RECP ((char *)CtdlGetUserData(SYM_SMTP_RECP))
67 /*****************************************************************************/
68 /* SMTP SERVER (INBOUND) STUFF */
69 /*****************************************************************************/
75 * Here's where our SMTP session begins its happy day.
77 void smtp_greeting(void) {
79 strcpy(CC->cs_clientname, "SMTP session");
81 CC->cs_flags |= CS_STEALTH;
82 CtdlAllocUserData(SYM_SMTP, sizeof(struct citsmtp));
83 CtdlAllocUserData(SYM_SMTP_RECP, 256);
84 sprintf(SMTP_RECP, "%s", "");
86 cprintf("220 Welcome to the Citadel/UX ESMTP server at %s\r\n",
92 * Implement HELO and EHLO commands.
94 void smtp_hello(char *argbuf, int is_esmtp) {
96 safestrncpy(SMTP->helo_node, argbuf, sizeof SMTP->helo_node);
99 cprintf("250 Greetings and joyous salutations.\r\n");
102 cprintf("250-Greetings and joyous salutations.\r\n");
103 cprintf("250-HELP\r\n");
104 cprintf("250-SIZE %ld\r\n", config.c_maxmsglen);
105 cprintf("250 AUTH=LOGIN\r\n");
111 * Implement HELP command.
113 void smtp_help(void) {
114 cprintf("214-Here's the frequency, Kenneth:\r\n");
115 cprintf("214- DATA\r\n");
116 cprintf("214- EHLO\r\n");
117 cprintf("214- EXPN\r\n");
118 cprintf("214- HELO\r\n");
119 cprintf("214- HELP\r\n");
120 cprintf("214- MAIL\r\n");
121 cprintf("214- NOOP\r\n");
122 cprintf("214- QUIT\r\n");
123 cprintf("214- RCPT\r\n");
124 cprintf("214- RSET\r\n");
125 cprintf("214- VRFY\r\n");
126 cprintf("214 I could tell you more, but then I'd have to kill you.\r\n");
133 void smtp_get_user(char *argbuf) {
137 decode_base64(username, argbuf);
138 lprintf(9, "Trying <%s>\n", username);
139 if (CtdlLoginExistingUser(username) == login_ok) {
140 encode_base64(buf, "Password:");
141 cprintf("334 %s\r\n", buf);
142 SMTP->command_state = smtp_password;
145 cprintf("500 No such user.\r\n");
146 SMTP->command_state = smtp_command;
154 void smtp_get_pass(char *argbuf) {
157 decode_base64(password, argbuf);
158 lprintf(9, "Trying <%s>\n", password);
159 if (CtdlTryPassword(password) == pass_ok) {
160 cprintf("235 Authentication successful.\r\n");
161 lprintf(9, "SMTP authenticated login successful\n");
162 CC->internal_pgm = 0;
163 CC->cs_flags &= ~CS_STEALTH;
166 cprintf("500 Authentication failed.\r\n");
168 SMTP->command_state = smtp_command;
175 void smtp_auth(char *argbuf) {
178 if (strncasecmp(argbuf, "login", 5) ) {
179 cprintf("550 We only support LOGIN authentication.\r\n");
183 if (strlen(argbuf) >= 7) {
184 smtp_get_user(&argbuf[6]);
188 encode_base64(buf, "Username:");
189 cprintf("334 %s\r\n", buf);
190 SMTP->command_state = smtp_user;
196 * Back end for smtp_vrfy() command
198 void smtp_vrfy_backend(struct usersupp *us, void *data) {
200 if (!fuzzy_match(us, SMTP->vrfy_match)) {
202 memcpy(&SMTP->vrfy_buffer, us, sizeof(struct usersupp));
208 * Implements the VRFY (verify user name) command.
209 * Performs fuzzy match on full user names.
211 void smtp_vrfy(char *argbuf) {
212 SMTP->vrfy_count = 0;
213 strcpy(SMTP->vrfy_match, argbuf);
214 ForEachUser(smtp_vrfy_backend, NULL);
216 if (SMTP->vrfy_count < 1) {
217 cprintf("550 String does not match anything.\r\n");
219 else if (SMTP->vrfy_count == 1) {
220 cprintf("250 %s <cit%ld@%s>\r\n",
221 SMTP->vrfy_buffer.fullname,
222 SMTP->vrfy_buffer.usernum,
225 else if (SMTP->vrfy_count > 1) {
226 cprintf("553 Request ambiguous: %d users matched.\r\n",
235 * Back end for smtp_expn() command
237 void smtp_expn_backend(struct usersupp *us, void *data) {
239 if (!fuzzy_match(us, SMTP->vrfy_match)) {
241 if (SMTP->vrfy_count >= 1) {
242 cprintf("250-%s <cit%ld@%s>\r\n",
243 SMTP->vrfy_buffer.fullname,
244 SMTP->vrfy_buffer.usernum,
249 memcpy(&SMTP->vrfy_buffer, us, sizeof(struct usersupp));
255 * Implements the EXPN (expand user name) command.
256 * Performs fuzzy match on full user names.
258 void smtp_expn(char *argbuf) {
259 SMTP->vrfy_count = 0;
260 strcpy(SMTP->vrfy_match, argbuf);
261 ForEachUser(smtp_expn_backend, NULL);
263 if (SMTP->vrfy_count < 1) {
264 cprintf("550 String does not match anything.\r\n");
266 else if (SMTP->vrfy_count >= 1) {
267 cprintf("250 %s <cit%ld@%s>\r\n",
268 SMTP->vrfy_buffer.fullname,
269 SMTP->vrfy_buffer.usernum,
276 * Implements the RSET (reset state) command.
277 * Currently this just zeroes out the state buffer. If pointers to data
278 * allocated with mallok() are ever placed in the state buffer, we have to
279 * be sure to phree() them first!
281 void smtp_rset(void) {
282 memset(SMTP, 0, sizeof(struct citsmtp));
283 if (CC->logged_in) logout(CC);
284 cprintf("250 Zap!\r\n");
290 * Implements the "MAIL From:" command
292 void smtp_mail(char *argbuf) {
297 if (strlen(SMTP->from) != 0) {
298 cprintf("503 Only one sender permitted\r\n");
302 if (strncasecmp(argbuf, "From:", 5)) {
303 cprintf("501 Syntax error\r\n");
307 strcpy(SMTP->from, &argbuf[5]);
310 if (strlen(SMTP->from) == 0) {
311 cprintf("501 Empty sender name is not permitted\r\n");
316 /* If this SMTP connection is from a logged-in user, make sure that
317 * the user only sends email from his/her own address.
320 cvt = convert_internet_address(user, node, SMTP->from);
321 lprintf(9, "cvt=%d, citaddr=<%s@%s>\n", cvt, user, node);
322 if ( (cvt != 0) || (strcasecmp(user, CC->usersupp.fullname))) {
323 cprintf("550 <%s> is not your address.\r\n", SMTP->from);
324 strcpy(SMTP->from, "");
329 /* Otherwise, make sure outsiders aren't trying to forge mail from
333 cvt = convert_internet_address(user, node, SMTP->from);
334 lprintf(9, "cvt=%d, citaddr=<%s@%s>\n", cvt, user, node);
335 if (CtdlHostAlias(node) == hostalias_localhost) {
336 cprintf("550 You must log in to send mail from %s\r\n",
338 strcpy(SMTP->from, "");
343 cprintf("250 Sender ok. Groovy.\r\n");
349 * Implements the "RCPT To:" command
351 void smtp_rcpt(char *argbuf) {
356 int is_spam = 0; /* FIX implement anti-spamming */
358 if (strlen(SMTP->from) == 0) {
359 cprintf("503 MAIL first, then RCPT. Duh.\r\n");
363 if (strncasecmp(argbuf, "To:", 3)) {
364 cprintf("501 Syntax error\r\n");
368 strcpy(recp, &argbuf[3]);
372 cvt = convert_internet_address(user, node, recp);
373 sprintf(recp, "%s@%s", user, node);
377 case rfc822_address_locally_validated:
378 cprintf("250 %s is a valid recipient.\r\n", user);
379 ++SMTP->number_of_recipients;
380 CtdlReallocUserData(SYM_SMTP_RECP,
381 strlen(SMTP_RECP) + 1024 );
382 strcat(SMTP_RECP, "local|");
383 strcat(SMTP_RECP, user);
384 strcat(SMTP_RECP, "|0\n");
387 case rfc822_room_delivery:
388 cprintf("250 Delivering to room '%s'\r\n", user);
389 ++SMTP->number_of_recipients;
390 CtdlReallocUserData(SYM_SMTP_RECP,
391 strlen(SMTP_RECP) + 1024 );
392 strcat(SMTP_RECP, "room|");
393 strcat(SMTP_RECP, user);
394 strcat(SMTP_RECP, "|0|\n");
397 case rfc822_no_such_user:
398 cprintf("550 %s: no such user\r\n", recp);
401 case rfc822_address_invalid:
403 cprintf("551 Away with thee, spammer!\r\n");
406 cprintf("250 Remote recipient %s ok\r\n", recp);
407 ++SMTP->number_of_recipients;
408 CtdlReallocUserData(SYM_SMTP_RECP,
409 strlen(SMTP_RECP) + 1024 );
410 strcat(SMTP_RECP, "remote|");
411 strcat(SMTP_RECP, recp);
412 strcat(SMTP_RECP, "|0|\n");
418 cprintf("599 Unknown error\r\n");
426 * Back end for smtp_data() ... this does the actual delivery of the message
427 * Returns 0 on success, nonzero on failure
429 int smtp_message_delivery(struct CtdlMessage *msg) {
436 int successful_saves = 0; /* number of successful local saves */
437 int failed_saves = 0; /* number of failed deliveries */
438 int remote_spools = 0; /* number of copies to send out */
441 struct usersupp userbuf;
442 char *instr; /* Remote delivery instructions */
443 struct CtdlMessage *imsg;
445 lprintf(9, "smtp_message_delivery() called\n");
447 /* Fill in 'from' fields with envelope information if missing */
448 process_rfc822_addr(SMTP->from, user, node, name);
449 if (msg->cm_fields['A']==NULL) msg->cm_fields['A'] = strdoop(user);
450 if (msg->cm_fields['N']==NULL) msg->cm_fields['N'] = strdoop(node);
451 if (msg->cm_fields['H']==NULL) msg->cm_fields['H'] = strdoop(name);
453 /* Save the message in the queue */
454 msgid = CtdlSaveMsg(msg,
461 instr = mallok(1024);
462 sprintf(instr, "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n",
463 SPOOLMIME, msgid, time(NULL) );
465 for (i=0; i<SMTP->number_of_recipients; ++i) {
466 extract_token(buf, SMTP_RECP, i, '\n');
467 extract(dtype, buf, 0);
469 /* Stuff local mailboxes */
470 if (!strcasecmp(dtype, "local")) {
471 extract(user, buf, 1);
472 if (getuser(&userbuf, user) == 0) {
473 MailboxName(room, &userbuf, MAILROOM);
474 CtdlSaveMsgPointerInRoom(room, msgid, 0);
482 /* Delivery to local non-mailbox rooms */
483 if (!strcasecmp(dtype, "room")) {
484 extract(room, buf, 1);
485 CtdlSaveMsgPointerInRoom(room, msgid, 0);
489 /* Remote delivery */
490 if (!strcasecmp(dtype, "remote")) {
491 extract(user, buf, 1);
492 instr = reallok(instr, strlen(instr) + 1024);
493 sprintf(&instr[strlen(instr)],
501 /* If there are remote spools to be done, save the instructions */
502 if (remote_spools > 0) {
503 imsg = mallok(sizeof(struct CtdlMessage));
504 memset(imsg, 0, sizeof(struct CtdlMessage));
505 imsg->cm_magic = CTDLMESSAGE_MAGIC;
506 imsg->cm_anon_type = MES_NORMAL;
507 imsg->cm_format_type = FMT_RFC822;
508 imsg->cm_fields['M'] = instr;
509 CtdlSaveMsg(imsg, "", SMTP_SPOOLOUT_ROOM, MES_LOCAL, 1);
510 CtdlFreeMessage(imsg);
513 /* If there are no remote spools, delete the message */
515 phree(instr); /* only needed here, because CtdlSaveMsg()
516 * would free this buffer otherwise */
517 CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, msgid, NULL);
520 return(failed_saves);
526 * Implements the DATA command
528 void smtp_data(void) {
530 struct CtdlMessage *msg;
534 if (strlen(SMTP->from) == 0) {
535 cprintf("503 Need MAIL command first.\r\n");
539 if (SMTP->number_of_recipients < 1) {
540 cprintf("503 Need RCPT command first.\r\n");
544 cprintf("354 Transmit message now; terminate with '.' by itself\r\n");
546 generate_rfc822_datestamp(nowstamp, time(NULL));
549 if (body != NULL) sprintf(body,
550 "Received: from %s\n"
557 body = CtdlReadMessageBody(".", config.c_maxmsglen, body);
559 cprintf("550 Unable to save message text: internal error.\r\n");
563 lprintf(9, "Converting message...\n");
564 msg = convert_internet_message(body);
566 /* If the user is locally authenticated, FORCE the From: header to
567 * show up as the real sender
570 if (msg->cm_fields['A'] != NULL) phree(msg->cm_fields['A']);
571 if (msg->cm_fields['N'] != NULL) phree(msg->cm_fields['N']);
572 if (msg->cm_fields['H'] != NULL) phree(msg->cm_fields['H']);
573 msg->cm_fields['A'] = strdoop(CC->usersupp.fullname);
574 msg->cm_fields['N'] = strdoop(config.c_nodename);
575 msg->cm_fields['H'] = strdoop(config.c_humannode);
578 retval = smtp_message_delivery(msg);
579 CtdlFreeMessage(msg);
582 cprintf("250 Message accepted for delivery.\r\n");
585 cprintf("550 Internal delivery errors: %d\r\n", retval);
593 * Main command loop for SMTP sessions.
595 void smtp_command_loop(void) {
599 memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
600 if (client_gets(cmdbuf) < 1) {
601 lprintf(3, "SMTP socket is broken. Ending session.\n");
605 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
606 while (strlen(cmdbuf) < 5) strcat(cmdbuf, " ");
608 if (SMTP->command_state == smtp_user) {
609 smtp_get_user(cmdbuf);
612 else if (SMTP->command_state == smtp_password) {
613 smtp_get_pass(cmdbuf);
616 else if (!strncasecmp(cmdbuf, "AUTH", 4)) {
617 smtp_auth(&cmdbuf[5]);
620 else if (!strncasecmp(cmdbuf, "DATA", 4)) {
624 else if (!strncasecmp(cmdbuf, "EHLO", 4)) {
625 smtp_hello(&cmdbuf[5], 1);
628 else if (!strncasecmp(cmdbuf, "EXPN", 4)) {
629 smtp_expn(&cmdbuf[5]);
632 else if (!strncasecmp(cmdbuf, "HELO", 4)) {
633 smtp_hello(&cmdbuf[5], 0);
636 else if (!strncasecmp(cmdbuf, "HELP", 4)) {
640 else if (!strncasecmp(cmdbuf, "MAIL", 4)) {
641 smtp_mail(&cmdbuf[5]);
644 else if (!strncasecmp(cmdbuf, "NOOP", 4)) {
645 cprintf("250 This command successfully did nothing.\r\n");
648 else if (!strncasecmp(cmdbuf, "QUIT", 4)) {
649 cprintf("221 Goodbye...\r\n");
654 else if (!strncasecmp(cmdbuf, "RCPT", 4)) {
655 smtp_rcpt(&cmdbuf[5]);
658 else if (!strncasecmp(cmdbuf, "RSET", 4)) {
662 else if (!strncasecmp(cmdbuf, "VRFY", 4)) {
663 smtp_vrfy(&cmdbuf[5]);
667 cprintf("502 I'm sorry Dave, I'm afraid I can't do that.\r\n");
675 /*****************************************************************************/
676 /* SMTP CLIENT (OUTBOUND PROCESSING) STUFF */
677 /*****************************************************************************/
684 * Called by smtp_do_procmsg() to attempt delivery to one SMTP host
687 void smtp_try(char *key, char *addr, int *status, char *dsn, long msgnum)
694 char user[256], node[256], name[256];
700 size_t blocksize = 0;
703 /* Parse out the host portion of the recipient address */
704 process_rfc822_addr(addr, user, node, name);
705 lprintf(9, "Attempting SMTP delivery to <%s> @ <%s> (%s)\n",
708 /* Load the message out of the database into a temp file */
710 if (msg_fp == NULL) {
712 sprintf(dsn, "Error creating temporary file");
716 CtdlRedirectOutput(msg_fp, -1);
717 CtdlOutputMsg(msgnum, MT_RFC822, 0, 0, 1);
718 CtdlRedirectOutput(NULL, -1);
719 fseek(msg_fp, 0L, SEEK_END);
720 msg_size = ftell(msg_fp);
724 /* Extract something to send later in the 'MAIL From:' command */
725 strcpy(mailfrom, "");
729 if (fgets(buf, sizeof buf, msg_fp)==NULL) scan_done = 1;
730 if (!strncasecmp(buf, "From:", 5)) {
731 safestrncpy(mailfrom, &buf[5], sizeof mailfrom);
733 for (i=0; i<strlen(mailfrom); ++i) {
734 if (!isprint(mailfrom[i])) {
735 strcpy(&mailfrom[i], &mailfrom[i+1]);
740 /* Strip out parenthesized names */
743 for (i=0; i<strlen(mailfrom); ++i) {
744 if (mailfrom[i] == '(') lp = i;
745 if (mailfrom[i] == ')') rp = i;
747 if ((lp>0)&&(rp>lp)) {
748 strcpy(&mailfrom[lp-1], &mailfrom[rp+1]);
751 /* Prefer brokketized names */
754 for (i=0; i<strlen(mailfrom); ++i) {
755 if (mailfrom[i] == '<') lp = i;
756 if (mailfrom[i] == '>') rp = i;
758 if ((lp>=0)&&(rp>lp)) {
760 strcpy(mailfrom, &mailfrom[lp]);
765 } while (scan_done == 0);
766 if (strlen(mailfrom)==0) strcpy(mailfrom, "someone@somewhere.org");
769 /* Figure out what mail exchanger host we have to connect to */
770 num_mxhosts = getmx(mxhosts, node);
771 lprintf(9, "Number of MX hosts for <%s> is %d\n", node, num_mxhosts);
772 if (num_mxhosts < 1) {
774 sprintf(dsn, "No MX hosts found for <%s>", node);
778 for (mx=0; mx<num_mxhosts; ++mx) {
779 extract(buf, mxhosts, mx);
780 lprintf(9, "Trying <%s>\n", buf);
781 sock = sock_connect(buf, "25", "tcp");
782 sprintf(dsn, "Could not connect: %s", strerror(errno));
783 if (sock >= 0) lprintf(9, "Connected!\n");
784 if (sock < 0) sprintf(dsn, "%s", strerror(errno));
785 if (sock >= 0) break;
789 *status = 4; /* dsn is already filled in */
793 /* Process the SMTP greeting from the server */
794 if (sock_gets(sock, buf) < 0) {
796 strcpy(dsn, "Connection broken during SMTP conversation");
799 lprintf(9, "<%s\n", buf);
803 strcpy(dsn, &buf[4]);
808 strcpy(dsn, &buf[4]);
813 /* At this point we know we are talking to a real SMTP server */
815 /* Do a HELO command */
816 sprintf(buf, "HELO %s", config.c_fqdn);
817 lprintf(9, ">%s\n", buf);
818 sock_puts(sock, buf);
819 if (sock_gets(sock, buf) < 0) {
821 strcpy(dsn, "Connection broken during SMTP conversation");
824 lprintf(9, "<%s\n", buf);
828 strcpy(dsn, &buf[4]);
833 strcpy(dsn, &buf[4]);
839 /* HELO succeeded, now try the MAIL From: command */
840 sprintf(buf, "MAIL From: %s", mailfrom);
841 lprintf(9, ">%s\n", buf);
842 sock_puts(sock, buf);
843 if (sock_gets(sock, buf) < 0) {
845 strcpy(dsn, "Connection broken during SMTP conversation");
848 lprintf(9, "<%s\n", buf);
852 strcpy(dsn, &buf[4]);
857 strcpy(dsn, &buf[4]);
863 /* MAIL succeeded, now try the RCPT To: command */
864 sprintf(buf, "RCPT To: %s", addr);
865 lprintf(9, ">%s\n", buf);
866 sock_puts(sock, buf);
867 if (sock_gets(sock, buf) < 0) {
869 strcpy(dsn, "Connection broken during SMTP conversation");
872 lprintf(9, "<%s\n", buf);
876 strcpy(dsn, &buf[4]);
881 strcpy(dsn, &buf[4]);
887 /* RCPT succeeded, now try the DATA command */
888 lprintf(9, ">DATA\n");
889 sock_puts(sock, "DATA");
890 if (sock_gets(sock, buf) < 0) {
892 strcpy(dsn, "Connection broken during SMTP conversation");
895 lprintf(9, "<%s\n", buf);
899 strcpy(dsn, &buf[4]);
904 strcpy(dsn, &buf[4]);
909 /* If we reach this point, the server is expecting data */
911 while (msg_size > 0) {
912 blocksize = sizeof(buf);
913 if (blocksize > msg_size) blocksize = msg_size;
914 fread(buf, blocksize, 1, msg_fp);
915 sock_write(sock, buf, blocksize);
916 msg_size -= blocksize;
918 if (buf[blocksize-1] != 10) {
919 lprintf(5, "Possible problem: message did not correctly "
920 "terminate. (expecting 0x10, got 0x%02x)\n",
924 sock_write(sock, ".\r\n", 3);
925 if (sock_gets(sock, buf) < 0) {
927 strcpy(dsn, "Connection broken during SMTP conversation");
930 lprintf(9, "%s\n", buf);
934 strcpy(dsn, &buf[4]);
939 strcpy(dsn, &buf[4]);
945 strcpy(dsn, &buf[4]);
948 lprintf(9, ">QUIT\n");
949 sock_puts(sock, "QUIT");
950 sock_gets(sock, buf);
951 lprintf(9, "<%s\n", buf);
953 bail: if (msg_fp != NULL) fclose(msg_fp);
961 * smtp_purge_completed_deliveries() is caled by smtp_do_procmsg() to remove
962 * all of the completed deliveries from a set of delivery instructions.
964 * It returns the number of incomplete deliveries remaining.
966 int smtp_purge_completed_deliveries(char *instr) {
977 lines = num_tokens(instr, '\n');
978 for (i=0; i<lines; ++i) {
979 extract_token(buf, instr, i, '\n');
980 extract(key, buf, 0);
981 extract(addr, buf, 1);
982 status = extract_int(buf, 2);
983 extract(dsn, buf, 3);
988 (!strcasecmp(key, "local"))
989 || (!strcasecmp(key, "remote"))
990 || (!strcasecmp(key, "ignet"))
991 || (!strcasecmp(key, "room"))
993 if (status == 2) completed = 1;
998 remove_token(instr, i, '\n');
1011 * Called by smtp_do_queue() to handle an individual message.
1013 void smtp_do_procmsg(long msgnum) {
1014 struct CtdlMessage *msg;
1016 char *results = NULL;
1024 long text_msgid = (-1);
1025 int incomplete_deliveries_remaining;
1027 msg = CtdlFetchMessage(msgnum);
1029 lprintf(3, "SMTP: tried %ld but no such message!\n", msgnum);
1033 instr = strdoop(msg->cm_fields['M']);
1034 CtdlFreeMessage(msg);
1036 /* Strip out the headers amd any other non-instruction line */
1037 lines = num_tokens(instr, '\n');
1038 for (i=0; i<lines; ++i) {
1039 extract_token(buf, instr, i, '\n');
1040 if (num_tokens(buf, '|') < 2) {
1041 lprintf(9, "removing <%s>\n", buf);
1042 remove_token(instr, i, '\n');
1048 /* Learn the message ID */
1049 lines = num_tokens(instr, '\n');
1050 for (i=0; i<lines; ++i) {
1051 extract_token(buf, instr, i, '\n');
1052 extract(key, buf, 0);
1053 if (!strcasecmp(key, "msgid")) {
1054 text_msgid = extract_long(buf, 1);
1058 if (text_msgid < 0L) {
1059 lprintf(3, "SMTP: no 'msgid' directive found!\n");
1064 /* Plow through the instructions looking for 'remote' directives and
1065 * a status of 0 (no delivery yet attempted) or 3 (transient errors
1066 * were experienced and it's time to try again)
1068 lines = num_tokens(instr, '\n');
1069 for (i=0; i<lines; ++i) {
1070 extract_token(buf, instr, i, '\n');
1071 extract(key, buf, 0);
1072 extract(addr, buf, 1);
1073 status = extract_int(buf, 2);
1074 extract(dsn, buf, 3);
1075 if ( (!strcasecmp(key, "remote"))
1076 && ((status==0)||(status==3)) ) {
1077 remove_token(instr, i, '\n');
1080 lprintf(9, "SMTP: Trying <%s>\n", addr);
1081 smtp_try(key, addr, &status, dsn, text_msgid);
1083 if (results == NULL) {
1084 results = mallok(1024);
1085 memset(results, 0, 1024);
1088 results = reallok(results,
1089 strlen(results) + 1024);
1091 sprintf(&results[strlen(results)],
1093 key, addr, status, dsn);
1098 if (results != NULL) {
1099 instr = reallok(instr, strlen(instr) + strlen(results) + 2);
1100 strcat(instr, results);
1107 * Go through the delivery list, deleting completed deliveries
1109 incomplete_deliveries_remaining =
1110 smtp_purge_completed_deliveries(instr);
1114 * No delivery instructions remain, so delete both the instructions
1115 * message and the message message.
1117 if (incomplete_deliveries_remaining <= 0) {
1118 CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, msgnum, NULL);
1119 CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, text_msgid, NULL);
1124 * Uncompleted delivery instructions remain, so delete the old
1125 * instructions and replace with the updated ones.
1127 if (incomplete_deliveries_remaining > 0) {
1128 CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, msgnum, NULL);
1129 msg = mallok(sizeof(struct CtdlMessage));
1130 memset(msg, 0, sizeof(struct CtdlMessage));
1131 msg->cm_magic = CTDLMESSAGE_MAGIC;
1132 msg->cm_anon_type = MES_NORMAL;
1133 msg->cm_format_type = FMT_RFC822;
1134 msg->cm_fields['M'] = malloc(strlen(instr)+256);
1135 sprintf(msg->cm_fields['M'],
1136 "Content-type: %s\n\n%s\n", SPOOLMIME, instr);
1138 CtdlSaveMsg(msg, "", SMTP_SPOOLOUT_ROOM, MES_LOCAL, 1);
1139 CtdlFreeMessage(msg);
1149 * Run through the queue sending out messages.
1151 void smtp_do_queue(void) {
1152 lprintf(5, "SMTP: processing outbound queue\n");
1154 if (getroom(&CC->quickroom, SMTP_SPOOLOUT_ROOM) != 0) {
1155 lprintf(3, "Cannot find room <%s>\n", SMTP_SPOOLOUT_ROOM);
1158 CtdlForEachMessage(MSGS_ALL, 0L, SPOOLMIME, NULL, smtp_do_procmsg);
1160 lprintf(5, "SMTP: queue run completed\n");
1165 /*****************************************************************************/
1166 /* MODULE INITIALIZATION STUFF */
1167 /*****************************************************************************/
1170 char *Dynamic_Module_Init(void)
1172 SYM_SMTP = CtdlGetDynamicSymbol();
1173 SYM_SMTP_RECP = CtdlGetDynamicSymbol();
1174 CtdlRegisterServiceHook(SMTP_PORT,
1177 create_room(SMTP_SPOOLOUT_ROOM, 3, "", 0);
1178 CtdlRegisterSessionHook(smtp_do_queue, EVT_TIMER);