1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
2 * vim: ts=4 sw=4 noet ai cindent syntax=c
4 * Conky, a system monitor, based on torsmo
6 * Any original torsmo code is licensed under the BSD license
8 * All code written since the fork of torsmo is licensed under the GPL
10 * Please see COPYING for details
12 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
13 * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
15 * All rights reserved.
17 * This program is free software: you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation, either version 3 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
42 #include <netinet/in.h>
44 #include <sys/socket.h>
47 #include <sys/param.h>
53 /* MAX() is defined by a header included from conky.h
54 * maybe once this is not true anymore, so have an alternative
57 * #define MAX(a, b) ((a > b) ? a : b)
60 char *current_mail_spool;
62 void update_mail_count(struct local_mail_s *mail)
70 /* TODO: use that fine file modification notify on Linux 2.4 */
72 /* don't check mail so often (9.5s is minimum interval) */
73 if (current_update_time - mail->last_update < 9.5) {
76 mail->last_update = current_update_time;
79 if (stat(mail->mbox, &st)) {
83 NORM_ERR("can't stat %s: %s", mail->mbox, strerror(errno));
90 if (S_ISDIR(st.st_mode)) {
93 struct dirent *dirent;
96 mail->mail_count = mail->new_mail_count = 0;
97 mail->seen_mail_count = mail->unseen_mail_count = 0;
98 mail->flagged_mail_count = mail->unflagged_mail_count = 0;
99 mail->forwarded_mail_count = mail->unforwarded_mail_count = 0;
100 mail->replied_mail_count = mail->unreplied_mail_count = 0;
101 mail->draft_mail_count = mail->trashed_mail_count = 0;
102 dirname = (char *) malloc(sizeof(char) * (strlen(mail->mbox) + 5));
107 strcpy(dirname, mail->mbox);
108 strcat(dirname, "/");
109 /* checking the cur subdirectory */
110 strcat(dirname, "cur");
112 dir = opendir(dirname);
114 NORM_ERR("cannot open directory");
118 dirent = readdir(dir);
120 /* . and .. are skipped */
121 if (dirent->d_name[0] != '.') {
123 mailflags = (char *) malloc(sizeof(char) * strlen(strrchr(dirent->d_name, ',')));
129 strcpy(mailflags, strrchr(dirent->d_name, ','));
130 if (!strchr(mailflags, 'T')) { /* The message is not in the trash */
131 if (strchr(mailflags, 'S')) { /*The message has been seen */
132 mail->seen_mail_count++;
134 mail->unseen_mail_count++;
136 if (strchr(mailflags, 'F')) { /*The message was flagged */
137 mail->flagged_mail_count++;
139 mail->unflagged_mail_count++;
141 if (strchr(mailflags, 'P')) { /*The message was forwarded */
142 mail->forwarded_mail_count++;
144 mail->unforwarded_mail_count++;
146 if (strchr(mailflags, 'R')) { /*The message was replied */
147 mail->replied_mail_count++;
149 mail->unreplied_mail_count++;
151 if (strchr(mailflags, 'D')) { /*The message is a draft */
152 mail->draft_mail_count++;
155 mail->trashed_mail_count++;
159 dirent = readdir(dir);
163 dirname[strlen(dirname) - 3] = '\0';
164 strcat(dirname, "new");
166 dir = opendir(dirname);
168 NORM_ERR("cannot open directory");
172 dirent = readdir(dir);
174 /* . and .. are skipped */
175 if (dirent->d_name[0] != '.') {
176 mail->new_mail_count++;
178 mail->unseen_mail_count++; /* new messages cannot have been seen */
180 dirent = readdir(dir);
189 if (st.st_mtime != mail->last_mtime) {
190 /* yippee, modification time has changed, let's read mail count! */
193 int reading_status = 0;
195 /* could lock here but I don't think it's really worth it because
196 * this isn't going to write mail spool */
198 mail->new_mail_count = mail->mail_count = 0;
200 /* these flags are not supported for mbox */
201 mail->seen_mail_count = mail->unseen_mail_count = -1;
202 mail->flagged_mail_count = mail->unflagged_mail_count = -1;
203 mail->forwarded_mail_count = mail->unforwarded_mail_count = -1;
204 mail->replied_mail_count = mail->unreplied_mail_count = -1;
205 mail->draft_mail_count = mail->trashed_mail_count = -1;
207 fp = open_file(mail->mbox, &rep);
212 /* NOTE: adds mail as new if there isn't Status-field at all */
218 if (fgets(buf, 128, fp) == NULL) {
222 if (strncmp(buf, "From ", 5) == 0) {
223 /* ignore MAILER-DAEMON */
224 if (strncmp(buf + 5, "MAILER-DAEMON ", 14) != 0) {
228 if (reading_status == 1) {
229 mail->new_mail_count++;
235 if (reading_status == 1
236 && strncmp(buf, "X-Mozilla-Status:", 17) == 0) {
237 int xms = strtol(buf + 17, NULL, 16);
238 /* check that mail isn't marked for deletion */
240 mail->trashed_mail_count++;
242 /* Don't check whether the trashed email is unread */
245 /* check that mail isn't already read */
246 if (!(xms & 0x0001)) {
247 mail->new_mail_count++;
251 /* check for an additional X-Status header */
255 if (reading_status == 1 && strncmp(buf, "Status:", 7) == 0) {
256 /* check that mail isn't already read */
257 if (strchr(buf + 7, 'R') == NULL) {
258 mail->new_mail_count++;
265 if (reading_status >= 1 && strncmp(buf, "X-Status:", 9) == 0) {
266 /* check that mail isn't marked for deletion */
267 if (strchr(buf + 9, 'D') != NULL) {
268 mail->trashed_mail_count++;
269 /* If the mail was previously detected as new,
270 subtract it from the new mail count */
272 mail->new_mail_count--;
281 while (strchr(buf, '\n') == NULL && !feof(fp)) {
288 if (reading_status) {
289 mail->new_mail_count++;
292 mail->last_mtime = st.st_mtime;
296 #define MAXDATASIZE 1000
298 struct mail_s *parse_mail_args(char type, const char *arg)
303 mail = malloc(sizeof(struct mail_s));
304 memset(mail, 0, sizeof(struct mail_s));
306 if (sscanf(arg, "%128s %128s %128s", mail->host, mail->user, mail->pass)
308 if (type == POP3_TYPE) {
309 NORM_ERR("Scanning POP3 args failed");
310 } else if (type == IMAP_TYPE) {
311 NORM_ERR("Scanning IMAP args failed");
315 // see if password needs prompting
316 if (mail->pass[0] == '*' && mail->pass[1] == '\0') {
317 int fp = fileno(stdin);
320 tcgetattr(fp, &term);
321 term.c_lflag &= ~ECHO;
322 tcsetattr(fp, TCSANOW, &term);
323 printf("Enter mailbox password (%s@%s): ", mail->user, mail->host);
324 scanf("%128s", mail->pass);
326 term.c_lflag |= ECHO;
327 tcsetattr(fp, TCSANOW, &term);
329 // now we check for optional args
330 tmp = strstr(arg, "-r ");
333 sscanf(tmp, "%u", &mail->retries);
335 mail->retries = 5; // 5 retries after failure
337 tmp = strstr(arg, "-i ");
340 sscanf(tmp, "%f", &mail->interval);
342 mail->interval = 300; // 5 minutes
344 tmp = strstr(arg, "-p ");
347 sscanf(tmp, "%lu", &mail->port);
349 if (type == POP3_TYPE) {
350 mail->port = 110; // default pop3 port
351 } else if (type == IMAP_TYPE) {
352 mail->port = 143; // default imap port
355 if (type == IMAP_TYPE) {
356 tmp = strstr(arg, "-f ");
360 if (tmp[0] == '\'') {
361 len = strstr(tmp + 1, "'") - tmp - 1;
366 strncpy(mail->folder, tmp + 1, len);
368 strncpy(mail->folder, "INBOX", 128); // default imap inbox
371 tmp = strstr(arg, "-e ");
376 if (tmp[0] == '\'') {
377 len = strstr(tmp + 1, "'") - tmp - 1;
382 strncpy(mail->command, tmp + 1, len);
384 mail->command[0] = '\0';
386 mail->p_timed_thread = NULL;
390 int imap_command(int sockfd, const char *command, char *response, const char *verify)
392 struct timeval fetchtimeout;
394 int res, numbytes = 0;
395 if (send(sockfd, command, strlen(command), 0) == -1) {
399 fetchtimeout.tv_sec = 60; // 60 second timeout i guess
400 fetchtimeout.tv_usec = 0;
402 FD_SET(sockfd, &fdset);
403 res = select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout);
405 if ((numbytes = recv(sockfd, response, MAXDATASIZE - 1, 0)) == -1) {
410 DBGP2("imap_command() command: %s", command);
411 DBGP2("imap_command() received: %s", response);
412 response[numbytes] = '\0';
413 if (strstr(response, verify) == NULL) {
419 int imap_check_status(char *recvbuf, struct mail_s *mail)
422 reply = strstr(recvbuf, " (MESSAGES ");
423 if (!reply || strlen(reply) < 2) {
427 *strchr(reply, ')') = '\0';
429 NORM_ERR("Error parsing IMAP response: %s", recvbuf);
432 timed_thread_lock(mail->p_timed_thread);
433 sscanf(reply, "MESSAGES %lu UNSEEN %lu", &mail->messages,
435 timed_thread_unlock(mail->p_timed_thread);
440 void imap_unseen_command(struct mail_s *mail, unsigned long old_unseen, unsigned long old_messages)
442 if (strlen(mail->command) > 1 && (mail->unseen > old_unseen
443 || (mail->messages > old_messages && mail->unseen > 0))) {
445 if (system(mail->command) == -1) {
451 void *imap_thread(void *arg)
453 int sockfd, numbytes;
454 char recvbuf[MAXDATASIZE];
455 char sendbuf[MAXDATASIZE];
456 unsigned int fail = 0;
457 unsigned long old_unseen = ULONG_MAX;
458 unsigned long old_messages = ULONG_MAX;
459 struct stat stat_buf;
460 struct hostent he, *he_res = 0;
463 struct sockaddr_in their_addr; // connector's address information
464 struct mail_s *mail = (struct mail_s *)arg;
466 int threadfd = timed_thread_readfd(mail->p_timed_thread);
467 char resolved_host = 0;
469 while (fail < mail->retries) {
470 struct timeval fetchtimeout;
474 if (!resolved_host) {
475 #ifdef HAVE_GETHOSTBYNAME_R
476 if (gethostbyname_r(mail->host, &he, hostbuff, sizeof(hostbuff), &he_res, &he_errno)) { // get the host info
477 NORM_ERR("IMAP gethostbyname_r: %s", hstrerror(h_errno));
481 #else /* HAVE_GETHOSTBYNAME_R */
482 if ((he_res = gethostbyname(mail->host)) == NULL) { // get the host info
483 herror("gethostbyname");
487 #endif /* HAVE_GETHOSTBYNAME_R */
491 NORM_ERR("Trying IMAP connection again for %s@%s (try %u/%u)",
492 mail->user, mail->host, fail + 1, mail->retries);
495 if ((sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1) {
502 their_addr.sin_family = AF_INET;
503 // short, network byte order
504 their_addr.sin_port = htons(mail->port);
505 their_addr.sin_addr = *((struct in_addr *) he_res->h_addr);
506 // zero the rest of the struct
507 memset(&(their_addr.sin_zero), '\0', 8);
509 if (connect(sockfd, (struct sockaddr *) &their_addr,
510 sizeof(struct sockaddr)) == -1) {
516 fetchtimeout.tv_sec = 60; // 60 second timeout i guess
517 fetchtimeout.tv_usec = 0;
519 FD_SET(sockfd, &fdset);
520 res = select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout);
522 if ((numbytes = recv(sockfd, recvbuf, MAXDATASIZE - 1, 0)) == -1) {
528 NORM_ERR("IMAP connection failed: timeout");
532 recvbuf[numbytes] = '\0';
533 DBGP2("imap_thread() received: %s", recvbuf);
534 if (strstr(recvbuf, "* OK") != recvbuf) {
535 NORM_ERR("IMAP connection failed, probably not an IMAP server");
539 strncpy(sendbuf, "abc CAPABILITY\r\n", MAXDATASIZE);
540 if (imap_command(sockfd, sendbuf, recvbuf, "abc OK")) {
544 if (strstr(recvbuf, " IDLE ") != NULL) {
548 strncpy(sendbuf, "a1 login ", MAXDATASIZE);
549 strncat(sendbuf, mail->user, MAXDATASIZE - strlen(sendbuf) - 1);
550 strncat(sendbuf, " ", MAXDATASIZE - strlen(sendbuf) - 1);
551 strncat(sendbuf, mail->pass, MAXDATASIZE - strlen(sendbuf) - 1);
552 strncat(sendbuf, "\r\n", MAXDATASIZE - strlen(sendbuf) - 1);
553 if (imap_command(sockfd, sendbuf, recvbuf, "a1 OK")) {
558 strncpy(sendbuf, "a2 STATUS \"", MAXDATASIZE);
559 strncat(sendbuf, mail->folder, MAXDATASIZE - strlen(sendbuf) - 1);
560 strncat(sendbuf, "\" (MESSAGES UNSEEN)\r\n",
561 MAXDATASIZE - strlen(sendbuf) - 1);
562 if (imap_command(sockfd, sendbuf, recvbuf, "a2 OK")) {
567 if (imap_check_status(recvbuf, mail)) {
571 imap_unseen_command(mail, old_unseen, old_messages);
573 old_unseen = mail->unseen;
574 old_messages = mail->messages;
577 strncpy(sendbuf, "a4 SELECT \"", MAXDATASIZE);
578 strncat(sendbuf, mail->folder, MAXDATASIZE - strlen(sendbuf) - 1);
579 strncat(sendbuf, "\"\r\n", MAXDATASIZE - strlen(sendbuf) - 1);
580 if (imap_command(sockfd, sendbuf, recvbuf, "a4 OK")) {
585 strncpy(sendbuf, "a5 IDLE\r\n", MAXDATASIZE);
586 if (imap_command(sockfd, sendbuf, recvbuf, "+ idling")) {
594 * RFC 2177 says we have to re-idle every 29 minutes.
595 * We'll do it every 20 minutes to be safe.
597 fetchtimeout.tv_sec = 1200;
598 fetchtimeout.tv_usec = 0;
601 FD_SET(sockfd, &fdset);
602 FD_SET(threadfd, &fdset);
603 res = select(MAX(sockfd + 1, threadfd + 1), &fdset, NULL, NULL, &fetchtimeout);
604 if (timed_thread_test(mail->p_timed_thread, 1) || (res == -1 && errno == EINTR) || FD_ISSET(threadfd, &fdset)) {
605 if ((fstat(sockfd, &stat_buf) == 0) && S_ISSOCK(stat_buf.st_mode)) {
606 /* if a valid socket, close it */
609 timed_thread_exit(mail->p_timed_thread);
610 } else if (res > 0) {
611 if ((numbytes = recv(sockfd, recvbuf, MAXDATASIZE - 1, 0)) == -1) {
612 perror("recv idling");
620 recvbuf[numbytes] = '\0';
621 DBGP2("imap_thread() received: %s", recvbuf);
622 if (strlen(recvbuf) > 2) {
623 unsigned long messages, recent;
625 char force_check = 0;
626 buf = strstr(buf, "EXISTS");
627 while (buf && strlen(buf) > 1 && strstr(buf + 1, "EXISTS")) {
628 buf = strstr(buf + 1, "EXISTS");
631 // back up until we reach '*'
632 while (buf >= recvbuf && buf[0] != '*') {
635 if (sscanf(buf, "* %lu EXISTS\r\n", &messages) == 1) {
636 timed_thread_lock(mail->p_timed_thread);
637 if (mail->messages != messages) {
639 mail->messages = messages;
641 timed_thread_unlock(mail->p_timed_thread);
645 buf = strstr(buf, "RECENT");
646 while (buf && strlen(buf) > 1 && strstr(buf + 1, "RECENT")) {
647 buf = strstr(buf + 1, "RECENT");
650 // back up until we reach '*'
651 while (buf >= recvbuf && buf[0] != '*') {
654 if (sscanf(buf, "* %lu RECENT\r\n", &recent) != 1) {
659 * check if we got a FETCH from server, recent was
660 * something other than 0, or we had a timeout
663 if (recent > 0 || (buf && strstr(buf, " FETCH ")) || fetchtimeout.tv_sec == 0 || force_check) {
664 // re-check messages and unseen
665 if (imap_command(sockfd, "DONE\r\n", recvbuf, "a5 OK")) {
669 strncpy(sendbuf, "a2 STATUS \"", MAXDATASIZE);
670 strncat(sendbuf, mail->folder, MAXDATASIZE - strlen(sendbuf) - 1);
671 strncat(sendbuf, "\" (MESSAGES UNSEEN)\r\n",
672 MAXDATASIZE - strlen(sendbuf) - 1);
673 if (imap_command(sockfd, sendbuf, recvbuf, "a2 OK")) {
677 if (imap_check_status(recvbuf, mail)) {
681 strncpy(sendbuf, "a5 IDLE\r\n", MAXDATASIZE);
682 if (imap_command(sockfd, sendbuf, recvbuf, "+ idling")) {
688 * check if we got a BYE from server
691 if (buf && strstr(buf, "* BYE")) {
692 // need to re-connect
699 imap_unseen_command(mail, old_unseen, old_messages);
701 old_unseen = mail->unseen;
702 old_messages = mail->messages;
706 strncpy(sendbuf, "a3 logout\r\n", MAXDATASIZE);
707 if (send(sockfd, sendbuf, strlen(sendbuf), 0) == -1) {
712 fetchtimeout.tv_sec = 60; // 60 second timeout i guess
713 fetchtimeout.tv_usec = 0;
715 FD_SET(sockfd, &fdset);
716 res = select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout);
718 if ((numbytes = recv(sockfd, recvbuf, MAXDATASIZE - 1, 0)) == -1) {
724 recvbuf[numbytes] = '\0';
725 DBGP2("imap_thread() received: %s", recvbuf);
726 if (strstr(recvbuf, "a3 OK") == NULL) {
727 NORM_ERR("IMAP logout failed: %s", recvbuf);
733 if ((fstat(sockfd, &stat_buf) == 0) && S_ISSOCK(stat_buf.st_mode)) {
734 /* if a valid socket, close it */
737 if (timed_thread_test(mail->p_timed_thread, 0)) {
738 timed_thread_exit(mail->p_timed_thread);
746 int pop3_command(int sockfd, const char *command, char *response, const char *verify)
748 struct timeval fetchtimeout;
750 int res, numbytes = 0;
751 if (send(sockfd, command, strlen(command), 0) == -1) {
755 fetchtimeout.tv_sec = 60; // 60 second timeout i guess
756 fetchtimeout.tv_usec = 0;
758 FD_SET(sockfd, &fdset);
759 res = select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout);
761 if ((numbytes = recv(sockfd, response, MAXDATASIZE - 1, 0)) == -1) {
766 DBGP2("pop3_command() received: %s", response);
767 response[numbytes] = '\0';
768 if (strstr(response, verify) == NULL) {
774 void *pop3_thread(void *arg)
776 int sockfd, numbytes;
777 char recvbuf[MAXDATASIZE];
778 char sendbuf[MAXDATASIZE];
780 unsigned int fail = 0;
781 unsigned long old_unseen = ULONG_MAX;
782 struct stat stat_buf;
783 struct hostent he, *he_res = 0;
786 struct sockaddr_in their_addr; // connector's address information
787 struct mail_s *mail = (struct mail_s *)arg;
788 char resolved_host = 0;
790 while (fail < mail->retries) {
791 struct timeval fetchtimeout;
794 if (!resolved_host) {
795 #ifdef HAVE_GETHOSTBYNAME_R
796 if (gethostbyname_r(mail->host, &he, hostbuff, sizeof(hostbuff), &he_res, &he_errno)) { // get the host info
797 NORM_ERR("POP3 gethostbyname_r: %s", hstrerror(h_errno));
801 #else /* HAVE_GETHOSTBYNAME_R */
802 if ((he_res = gethostbyname(mail->host)) == NULL) { // get the host info
803 herror("gethostbyname");
807 #endif /* HAVE_GETHOSTBYNAME_R */
811 NORM_ERR("Trying POP3 connection again for %s@%s (try %u/%u)",
812 mail->user, mail->host, fail + 1, mail->retries);
815 if ((sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1) {
822 their_addr.sin_family = AF_INET;
823 // short, network byte order
824 their_addr.sin_port = htons(mail->port);
825 their_addr.sin_addr = *((struct in_addr *) he_res->h_addr);
826 // zero the rest of the struct
827 memset(&(their_addr.sin_zero), '\0', 8);
829 if (connect(sockfd, (struct sockaddr *) &their_addr,
830 sizeof(struct sockaddr)) == -1) {
836 fetchtimeout.tv_sec = 60; // 60 second timeout i guess
837 fetchtimeout.tv_usec = 0;
839 FD_SET(sockfd, &fdset);
840 res = select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout);
842 if ((numbytes = recv(sockfd, recvbuf, MAXDATASIZE - 1, 0)) == -1) {
848 NORM_ERR("POP3 connection failed: timeout\n");
852 DBGP2("pop3_thread received: %s", recvbuf);
853 recvbuf[numbytes] = '\0';
854 if (strstr(recvbuf, "+OK ") != recvbuf) {
855 NORM_ERR("POP3 connection failed, probably not a POP3 server");
859 strncpy(sendbuf, "USER ", MAXDATASIZE);
860 strncat(sendbuf, mail->user, MAXDATASIZE - strlen(sendbuf) - 1);
861 strncat(sendbuf, "\r\n", MAXDATASIZE - strlen(sendbuf) - 1);
862 if (pop3_command(sockfd, sendbuf, recvbuf, "+OK ")) {
867 strncpy(sendbuf, "PASS ", MAXDATASIZE);
868 strncat(sendbuf, mail->pass, MAXDATASIZE - strlen(sendbuf) - 1);
869 strncat(sendbuf, "\r\n", MAXDATASIZE - strlen(sendbuf) - 1);
870 if (pop3_command(sockfd, sendbuf, recvbuf, "+OK ")) {
871 NORM_ERR("POP3 server login failed: %s", recvbuf);
876 strncpy(sendbuf, "STAT\r\n", MAXDATASIZE);
877 if (pop3_command(sockfd, sendbuf, recvbuf, "+OK ")) {
883 // now we get the data
886 NORM_ERR("Error parsing POP3 response: %s", recvbuf);
890 timed_thread_lock(mail->p_timed_thread);
891 sscanf(reply, "%lu %lu", &mail->unseen, &mail->used);
892 timed_thread_unlock(mail->p_timed_thread);
895 strncpy(sendbuf, "QUIT\r\n", MAXDATASIZE);
896 if (pop3_command(sockfd, sendbuf, recvbuf, "+OK")) {
897 NORM_ERR("POP3 logout failed: %s", recvbuf);
902 if (strlen(mail->command) > 1 && mail->unseen > old_unseen) {
904 if (system(mail->command) == -1) {
909 old_unseen = mail->unseen;
911 if ((fstat(sockfd, &stat_buf) == 0) && S_ISSOCK(stat_buf.st_mode)) {
912 /* if a valid socket, close it */
915 if (timed_thread_test(mail->p_timed_thread, 0)) {
916 timed_thread_exit(mail->p_timed_thread);