*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
/* Functions for sending messages to sender or to mailmaster. */
void
moan_write_from(FILE *f)
{
-uschar *s = expand_string(dsn_from);
+uschar * s = expand_string(dsn_from);
if (!s)
{
log_write(0, LOG_MAIN|LOG_PANIC,
+/*************************************************
+* Write References: line for DSN *
+*************************************************/
+
+/* Generate a References: header if there is in the header_list
+at least one of Message-ID:, References:, or In-Reply-To: (see RFC 2822).
+
+Arguments: f the FILE to write to
+ message_id optional already-found message-id, or NULL
+
+Returns: nothing
+*/
+
+void
+moan_write_references(FILE * fp, uschar * message_id)
+{
+header_line * h;
+
+if (!message_id)
+ for (h = header_list; h; h = h->next)
+ if (h->type == htype_id)
+ {
+ message_id = Ustrchr(h->text, ':') + 1;
+ Uskip_whitespace(&message_id);
+ }
+
+for (h = header_list; h; h = h->next)
+ if (h->type != htype_old && strncmpic(US"References:", h->text, 11) == 0)
+ break;
+
+if (!h)
+ for (h = header_list; h; h = h->next)
+ if (h->type != htype_old && strncmpic(US"In-Reply-To:", h->text, 12) == 0)
+ break;
+
+/* We limit the total length of references. Although there is no fixed
+limit, some systems do not like headers growing beyond recognition.
+Keep the first message ID for the thread root and the last few for
+the position inside the thread, up to a maximum of 12 altogether. */
+
+if (h || message_id)
+ {
+ fprintf(fp, "References:");
+ if (h)
+ {
+ uschar * s, * id, * error;
+ uschar * referenced_ids[12];
+ int reference_count = 0;
+
+ s = Ustrchr(h->text, ':') + 1;
+ f.parse_allow_group = FALSE;
+ while (*s && (s = parse_message_id(s, &id, &error)))
+ if (reference_count == nelem(referenced_ids))
+ {
+ memmove(referenced_ids + 1, referenced_ids + 2,
+ sizeof(referenced_ids) - 2*sizeof(uschar *));
+ referenced_ids[reference_count - 1] = id;
+ }
+ else
+ referenced_ids[reference_count++] = id;
+
+ for (int i = 0; i < reference_count; ++i)
+ fprintf(fp, " %s", referenced_ids[i]);
+ }
+
+ /* The message id will have a newline on the end of it. */
+
+ if (message_id) fprintf(fp, " %s", message_id);
+ else fprintf(fp, "\n");
+ }
+}
+
+
+
/*************************************************
* Send error message *
*************************************************/
FILE * fp;
int pid;
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
uschar * s, * s2;
/* For DMARC if there is a specific sender set, expand the variable for the
&& (s2 = expand_string(string_sprintf("${address:%s}", s)))
&& *s2
)
- pid = child_open_exim2(&fd, s2, bounce_sender_authentication);
+ pid = child_open_exim2(&fd, s2, bounce_sender_authentication,
+ US"moan_send_message");
else
{
s = NULL;
- pid = child_open_exim(&fd);
+ pid = child_open_exim(&fd, US"moan_send_message");
}
#else
-pid = child_open_exim(&fd);
+pid = child_open_exim(&fd, US"moan_send_message");
#endif
if (pid < 0)
if (errors_reply_to) fprintf(fp, "Reply-To: %s\n", errors_reply_to);
fprintf(fp, "Auto-Submitted: auto-replied\n");
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
if (s)
fprintf(fp, "From: %s\n", s);
else
moan_write_from(fp);
fprintf(fp, "To: %s\n", recipient);
+moan_write_references(fp, NULL);
switch(ident)
{
"A message that you sent contained one or more recipient addresses that were\n"
"incorrectly constructed:\n\n");
- while (eblock != NULL)
+ while (eblock)
{
fprintf(fp, " %s: %s\n", eblock->text1, eblock->text2);
count++;
fprintf(fp, "\n");
break;
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
case ERRMESS_DMARC_FORENSIC:
bounce_return_message = TRUE;
bounce_return_body = FALSE;
if (bounce_return_body && message_file)
{
BOOL enddot = f.dot_ends && message_file == stdin;
- uschar * buf = store_get(bounce_return_linesize_limit+2);
+ uschar * buf = store_get(bounce_return_linesize_limit+2, TRUE);
if (firstline) fprintf(fp, "%s", CS firstline);
fputs(CS buf, fp);
}
}
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
/* Overkill, but use exact test in case future code gets inserted */
else if (bounce_return_body && message_file == NULL)
{
FILE *f;
va_list ap;
int fd;
-int pid = child_open_exim(&fd);
+int pid = child_open_exim(&fd, US"moan_tell_someone");
if (pid < 0)
{
fprintf(f, "Auto-Submitted: auto-replied\n");
moan_write_from(f);
fprintf(f, "To: %s\n", who);
+moan_write_references(f, NULL);
fprintf(f, "Subject: %s\n\n", subject);
va_start(ap, format);
vfprintf(f, format, ap);
fprintf(stderr, "The rest of the batch was abandoned.\n");
-exim_exit(yield, US"batch");
+exim_exit(yield);
}
/* Scan through the configured items */
-while ((item = string_nextinlist(&listptr, &sep, buffer, sizeof(buffer)))
- != NULL)
+while ((item = string_nextinlist(&listptr, &sep, buffer, sizeof(buffer))))
{
const uschar *newaddress = item;
const uschar *pattern = string_dequote(&newaddress);
/* If we can't create a process to send the message, just forget about
it. */
-pid = child_open_exim(&fd);
+pid = child_open_exim(&fd, US"moan_skipped_syntax_errors");
if (pid < 0)
{
moan_write_from(f);
fprintf(f, "To: %s\n", s);
fprintf(f, "Subject: error(s) in forwarding or filtering\n\n");
+moan_write_references(f, NULL);
if (custom)
{
projects / exim.git / blobdiff