#include <sys/wait.h>
#include <string.h>
#include <limits.h>
+#include <time.h>
#include "citadel.h"
#include "server.h"
-#include <time.h>
#include "sysdep_decls.h"
#include "citserver.h"
#include "support.h"
#include "tools.h"
#include "internet_addressing.h"
#include "genstamp.h"
+#include "domain.h"
+#include "clientsocket.h"
struct citsmtp { /* Information about the current session */
int command_state;
+ char helo_node[256];
struct usersupp vrfy_buffer;
int vrfy_count;
char vrfy_match[256];
long SYM_SMTP;
long SYM_SMTP_RECP;
+
+
+/*****************************************************************************/
+/* SMTP SERVER (INBOUND) STUFF */
+/*****************************************************************************/
+
+
+
+
/*
* Here's where our SMTP session begins its happy day.
*/
*/
void smtp_hello(char *argbuf, int is_esmtp) {
+ safestrncpy(SMTP->helo_node, argbuf, sizeof SMTP->helo_node);
+
if (!is_esmtp) {
cprintf("250 Greetings and joyous salutations.\r\n");
}
lprintf(9, "Trying <%s>\n", password);
if (CtdlTryPassword(password) == pass_ok) {
cprintf("235 Authentication successful.\r\n");
- lprintf(9, "SMTP auth login successful\n");
+ lprintf(9, "SMTP authenticated login successful\n");
CC->internal_pgm = 0;
CC->cs_flags &= ~CS_STEALTH;
}
else {
cvt = convert_internet_address(user, node, SMTP->from);
lprintf(9, "cvt=%d, citaddr=<%s@%s>\n", cvt, user, node);
- if (!strcasecmp(node, config.c_nodename)) { /* FIX use fcn */
+ if (CtdlHostAlias(node) == hostalias_localhost) {
cprintf("550 You must log in to send mail from %s\r\n",
- config.c_fqdn);
+ node);
strcpy(SMTP->from, "");
return;
}
strlen(SMTP_RECP) + 1024 );
strcat(SMTP_RECP, "room|");
strcat(SMTP_RECP, user);
- strcat(SMTP_RECP, "|0\n");
+ strcat(SMTP_RECP, "|0|\n");
return;
case rfc822_no_such_user:
strlen(SMTP_RECP) + 1024 );
strcat(SMTP_RECP, "remote|");
strcat(SMTP_RECP, recp);
- strcat(SMTP_RECP, "|0\n");
+ strcat(SMTP_RECP, "|0|\n");
return;
}
return;
++successful_saves;
instr = mallok(1024);
- sprintf(instr, "Content-type: %s\n\nmsgid|%ld\n",
- SPOOLMIME, msgid);
+ sprintf(instr, "Content-type: %s\n\nmsgid|%ld\nsubmitted|%ld\n",
+ SPOOLMIME, msgid, time(NULL) );
for (i=0; i<SMTP->number_of_recipients; ++i) {
extract_token(buf, SMTP_RECP, i, '\n');
generate_rfc822_datestamp(nowstamp, time(NULL));
body = mallok(4096);
+
if (body != NULL) sprintf(body,
"Received: from %s\n"
" by %s;\n"
" %s\n",
- "FIX.FIX.com",
+ SMTP->helo_node,
config.c_fqdn,
nowstamp);
}
+
+
+/*****************************************************************************/
+/* SMTP CLIENT (OUTBOUND PROCESSING) STUFF */
+/*****************************************************************************/
+
+
+
+/*
+ * smtp_try()
+ *
+ * Called by smtp_do_procmsg() to attempt delivery to one SMTP host
+ *
+ */
+void smtp_try(char *key, char *addr, int *status, char *dsn, long msgnum)
+{
+ char buf[256];
+ int sock = (-1);
+ char mxhosts[1024];
+ int num_mxhosts;
+ int mx;
+ char user[256], node[256], name[256];
+
+ /* Parse out the host portion of the recipient address */
+ process_rfc822_addr(addr, user, node, name);
+ lprintf(9, "Attempting SMTP delivery to <%s> @ <%s> (%s)\n",
+ user, node, name);
+
+ num_mxhosts = getmx(mxhosts, node);
+ lprintf(9, "Number of MX hosts for <%s> is %d\n", node, num_mxhosts);
+ if (num_mxhosts < 1) {
+ *status = 5;
+ sprintf(dsn, "No MX hosts found for <%s>", node);
+ return;
+ }
+
+ for (mx=0; mx<num_mxhosts; ++mx) {
+ extract(buf, mxhosts, mx);
+ lprintf(9, "Trying <%s>\n", buf);
+ sock = sock_connect(buf, "25", "tcp");
+ sprintf(dsn, "Could not connect: %s", strerror(errno));
+ if (sock >= 0) lprintf(9, "Connected!\n");
+ if (sock < 0) sprintf(dsn, "%s", strerror(errno));
+ if (sock >= 0) break;
+ }
+
+ if (sock < 0) {
+ *status = 4; /* dsn is already filled in */
+ return;
+ }
+
+ /* Process the SMTP greeting from the server */
+ if (sock_gets(sock, buf) < 0) {
+ *status = 4;
+ strcpy(dsn, "Connection broken during SMTP conversation");
+ sock_close(sock);
+ return;
+ }
+ lprintf(9, "%s\n", buf);
+ if (buf[0] != '2') {
+ if (buf[0] == '4') {
+ *status = 4;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ else {
+ *status = 5;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ }
+
+ /* At this point we know we are talking to a real SMTP server */
+
+ /* Do a HELO command */
+ sprintf(buf, "HELO %s", config.c_fqdn);
+ sock_puts(sock, buf);
+ if (sock_gets(sock, buf) < 0) {
+ *status = 4;
+ strcpy(dsn, "Connection broken during SMTP conversation");
+ sock_close(sock);
+ return;
+ }
+ lprintf(9, "%s\n", buf);
+ if (buf[0] != '2') {
+ if (buf[0] == '4') {
+ *status = 4;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ else {
+ *status = 5;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ }
+
+
+ /* HELO succeeded, now try the MAIL From: command */
+ sprintf(buf, "MAIL From: FIX@uncnsrd.mt-kisco.ny.us"); /* FIX */
+ sock_puts(sock, buf);
+ if (sock_gets(sock, buf) < 0) {
+ *status = 4;
+ strcpy(dsn, "Connection broken during SMTP conversation");
+ sock_close(sock);
+ return;
+ }
+ lprintf(9, "%s\n", buf);
+ if (buf[0] != '2') {
+ if (buf[0] == '4') {
+ *status = 4;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ else {
+ *status = 5;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ }
+
+
+ /* MAIL succeeded, now try the RCPT To: command */
+ sprintf(buf, "RCPT To: %s", addr);
+ sock_puts(sock, buf);
+ if (sock_gets(sock, buf) < 0) {
+ *status = 4;
+ strcpy(dsn, "Connection broken during SMTP conversation");
+ sock_close(sock);
+ return;
+ }
+ lprintf(9, "%s\n", buf);
+ if (buf[0] != '2') {
+ if (buf[0] == '4') {
+ *status = 4;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ else {
+ *status = 5;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ }
+
+
+ /* RCPT succeeded, now try the DATA command */
+ sock_puts(sock, "DATA");
+ if (sock_gets(sock, buf) < 0) {
+ *status = 4;
+ strcpy(dsn, "Connection broken during SMTP conversation");
+ sock_close(sock);
+ return;
+ }
+ lprintf(9, "%s\n", buf);
+ if (buf[0] != '3') {
+ if (buf[0] == '4') {
+ *status = 3;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ else {
+ *status = 5;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ }
+
+ /* If we reach this point, the server is expecting data */
+
+ CtdlRedirectOutput(NULL, sock);
+ CtdlOutputMsg(msgnum, MT_RFC822, 0, 0, 1);
+ CtdlRedirectOutput(NULL, -1);
+
+ sock_puts(sock, ".");
+ if (sock_gets(sock, buf) < 0) {
+ *status = 4;
+ strcpy(dsn, "Connection broken during SMTP conversation");
+ sock_close(sock);
+ return;
+ }
+ lprintf(9, "%s\n", buf);
+ if (buf[0] != '2') {
+ if (buf[0] == '4') {
+ *status = 4;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ else {
+ *status = 5;
+ strcpy(dsn, &buf[4]);
+ sock_close(sock);
+ return;
+ }
+ }
+
+ /* We did it! */
+ strcpy(dsn, &buf[4]);
+ *status = 2;
+
+ sock_puts(sock, "QUIT");
+ sock_gets(sock, buf);
+ lprintf(9, "%s\n", buf);
+ sock_close(sock);
+}
+
+
+
+/*
+ * smtp_purge_completed_deliveries() is caled by smtp_do_procmsg() to remove
+ * all of the completed deliveries from a set of delivery instructions.
+ *
+ * It returns the number of incomplete deliveries remaining.
+ */
+int smtp_purge_completed_deliveries(char *instr) {
+ int i;
+ int lines;
+ int status;
+ char buf[1024];
+ char key[1024];
+ char addr[1024];
+ char dsn[1024];
+ int completed;
+ int incomplete = 0;
+
+ lines = num_tokens(instr, '\n');
+ for (i=0; i<lines; ++i) {
+ extract_token(buf, instr, i, '\n');
+ extract(key, buf, 0);
+ extract(addr, buf, 1);
+ status = extract_int(buf, 2);
+ extract(dsn, buf, 3);
+
+ completed = 0;
+
+ if (
+ (!strcasecmp(key, "local"))
+ || (!strcasecmp(key, "remote"))
+ || (!strcasecmp(key, "ignet"))
+ || (!strcasecmp(key, "room"))
+ ) {
+ if (status == 2) completed = 1;
+ else ++incomplete;
+ }
+
+ if (completed) {
+ remove_token(instr, i, '\n');
+ --i;
+ --lines;
+ }
+ }
+
+ return(incomplete);
+}
+
+
+/*
+ * smtp_do_procmsg()
+ *
+ * Called by smtp_do_queue() to handle an individual message.
+ */
+void smtp_do_procmsg(long msgnum) {
+ struct CtdlMessage *msg;
+ char *instr = NULL;
+ char *results = NULL;
+ int i;
+ int lines;
+ int status;
+ char buf[1024];
+ char key[1024];
+ char addr[1024];
+ char dsn[1024];
+ long text_msgid = (-1);
+ int incomplete_deliveries_remaining;
+
+ msg = CtdlFetchMessage(msgnum);
+ if (msg == NULL) {
+ lprintf(3, "SMTP: tried %ld but no such message!\n", msgnum);
+ return;
+ }
+
+ instr = strdoop(msg->cm_fields['M']);
+ CtdlFreeMessage(msg);
+
+ /* Strip out the headers amd any other non-instruction line */
+ lines = num_tokens(instr, '\n');
+ for (i=0; i<lines; ++i) {
+ extract_token(buf, instr, i, '\n');
+ if (num_tokens(buf, '|') < 2) {
+ lprintf(9, "removing <%s>\n", buf);
+ remove_token(instr, i, '\n');
+ --lines;
+ --i;
+ }
+ }
+
+ /* Learn the message ID */
+ lines = num_tokens(instr, '\n');
+ for (i=0; i<lines; ++i) {
+ extract_token(buf, instr, i, '\n');
+ extract(key, buf, 0);
+ if (!strcasecmp(key, "msgid")) {
+ text_msgid = extract_long(buf, 1);
+ }
+ }
+
+ if (text_msgid < 0L) {
+ lprintf(3, "SMTP: no 'msgid' directive found!\n");
+ phree(instr);
+ return;
+ }
+
+ /* Plow through the instructions looking for 'remote' directives and
+ * a status of 0 (no delivery yet attempted) or 3 (transient errors
+ * were experienced and it's time to try again)
+ */
+ lines = num_tokens(instr, '\n');
+ for (i=0; i<lines; ++i) {
+ extract_token(buf, instr, i, '\n');
+ extract(key, buf, 0);
+ extract(addr, buf, 1);
+ status = extract_int(buf, 2);
+ extract(dsn, buf, 3);
+ if ( (!strcasecmp(key, "remote"))
+ && ((status==0)||(status==3)) ) {
+ remove_token(instr, i, '\n');
+ --i;
+ --lines;
+ lprintf(9, "SMTP: Trying <%s>\n", addr);
+ smtp_try(key, addr, &status, dsn, text_msgid);
+ if (status != 2) {
+ if (results == NULL) {
+ results = mallok(1024);
+ memset(results, 0, 1024);
+ }
+ else {
+ results = reallok(results,
+ strlen(results) + 1024);
+ }
+ sprintf(&results[strlen(results)],
+ "%s|%s|%d|%s\n",
+ key, addr, status, dsn);
+ }
+ }
+ }
+
+ if (results != NULL) {
+ instr = reallok(instr, strlen(instr) + strlen(results) + 2);
+ strcat(instr, results);
+ phree(results);
+ }
+
+
+
+ /*
+ * Go through the delivery list, deleting completed deliveries
+ */
+ incomplete_deliveries_remaining =
+ smtp_purge_completed_deliveries(instr);
+
+
+ /*
+ * No delivery instructions remain, so delete both the instructions
+ * message and the message message.
+ */
+ if (incomplete_deliveries_remaining <= 0) {
+ CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, msgnum, NULL);
+ CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, text_msgid, NULL);
+ }
+
+
+ /*
+ * Uncompleted delivery instructions remain, so delete the old
+ * instructions and replace with the updated ones.
+ */
+ if (incomplete_deliveries_remaining > 0) {
+ CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, msgnum, NULL);
+ msg = mallok(sizeof(struct CtdlMessage));
+ memset(msg, 0, sizeof(struct CtdlMessage));
+ msg->cm_magic = CTDLMESSAGE_MAGIC;
+ msg->cm_anon_type = MES_NORMAL;
+ msg->cm_format_type = FMT_RFC822;
+ msg->cm_fields['M'] = malloc(strlen(instr)+256);
+ sprintf(msg->cm_fields['M'],
+ "Content-type: %s\n\n%s\n", SPOOLMIME, instr);
+ phree(instr);
+ CtdlSaveMsg(msg, "", SMTP_SPOOLOUT_ROOM, MES_LOCAL, 1);
+ CtdlFreeMessage(msg);
+ }
+
+}
+
+
+
+/*
+ * smtp_do_queue()
+ *
+ * Run through the queue sending out messages.
+ */
+void smtp_do_queue(void) {
+ lprintf(5, "SMTP: processing outbound queue\n");
+
+ if (getroom(&CC->quickroom, SMTP_SPOOLOUT_ROOM) != 0) {
+ lprintf(3, "Cannot find room <%s>\n", SMTP_SPOOLOUT_ROOM);
+ return;
+ }
+ CtdlForEachMessage(MSGS_ALL, 0L, SPOOLMIME, NULL, smtp_do_procmsg);
+
+ lprintf(5, "SMTP: queue run completed\n");
+}
+
+
+
+/*****************************************************************************/
+/* MODULE INITIALIZATION STUFF */
+/*****************************************************************************/
+
+
char *Dynamic_Module_Init(void)
{
SYM_SMTP = CtdlGetDynamicSymbol();
smtp_greeting,
smtp_command_loop);
create_room(SMTP_SPOOLOUT_ROOM, 3, "", 0);
+ CtdlRegisterSessionHook(smtp_do_queue, EVT_TIMER);
return "$Id$";
}
projects / citadel.git / blobdiff