Retrieve POP3 UIDL for each message. (Not yet doing

[citadel.git] / citadel / modules / pop3client / serv_pop3client.c

diff --git a/citadel/modules/pop3client/serv_pop3client.c b/citadel/modules/pop3client/serv_pop3client.c
index c50d080f45a2133d37e1b7a31de6d2ab48ca4f29..82937f891bc9a7a2f88d1e10a5f7c6878b299aff 100644 (file)
--- a/citadel/modules/pop3client/serv_pop3client.c
+++ b/citadel/modules/pop3client/serv_pop3client.c
@@ -57,6 +57,7 @@ void pop3_do_fetching(char *roomname, char *pop3host, char *pop3user, char *pop3
        char *body = NULL;
        struct CtdlMessage *msg = NULL;
        long msgnum = 0;
+       char this_uidl[64];
 
        lprintf(CTDL_DEBUG, "POP3: %s %s %s <password>\n", roomname, pop3host, pop3user);
        lprintf(CTDL_NOTICE, "Connecting to <%s>\n", pop3host);
@@ -121,6 +122,15 @@ void pop3_do_fetching(char *roomname, char *pop3host, char *pop3user, char *pop3
 
        if (num_msgs) for (i=0; i<num_msgs; ++i) {
 
+               /* Find out the UIDL of the message, to determine whether we've already downloaded it */
+               snprintf(buf, sizeof buf, "UIDL %d\r", msglist[i]);
+               lprintf(CTDL_DEBUG, "<%s\n", buf);
+               if (sock_puts(sock, buf) <0) goto bail;
+               if (sock_getln(sock, buf, sizeof buf) < 0) goto bail;
+               lprintf(CTDL_DEBUG, ">%s\n", buf);
+               if (strncasecmp(buf, "+OK", 3)) goto bail;
+               extract_token(this_uidl, buf, 3, ' ', sizeof this_uidl);
+
                /* Tell the server to fetch the message */
                snprintf(buf, sizeof buf, "RETR %d\r", msglist[i]);
                lprintf(CTDL_DEBUG, "<%s\n", buf);