/* Augments the recipients of reply from the headers of message.
*
* If any of the user's addresses were found in these headers, the first
* of these returned, otherwise NULL is returned.
*/
static const char *
add_recipients_from_message (GMimeMessage *reply,
notmuch_config_t *config,
notmuch_message_t *message)
{
struct {
const char *header;
const char *fallback;
GMimeRecipientType recipient_type;
} reply_to_map[] = {
{ "reply-to", "from", GMIME_RECIPIENT_TYPE_TO },
{ "to", NULL, GMIME_RECIPIENT_TYPE_TO },
{ "cc", NULL, GMIME_RECIPIENT_TYPE_CC },
{ "bcc", NULL, GMIME_RECIPIENT_TYPE_BCC }
};
const char *from_addr = NULL;
unsigned int i;
/* Some mailing lists munge the Reply-To header despite it being A Bad
* Thing, see http://www.unicom.com/pw/reply-to-harmful.html
*
* The munging is easy to detect, because it results in a
* redundant reply-to header, (with an address that already exists
* in either To or Cc). So in this case, we ignore the Reply-To
* field and use the From header. This ensures the original sender
* will get the reply even if not subscribed to the list. Note
* that the address in the Reply-To header will always appear in
* the reply.
*/
if (reply_to_header_is_redundant (message)) {
reply_to_map[0].header = "from";
reply_to_map[0].fallback = NULL;
}
for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {
const char *addr, *recipients;
recipients = notmuch_message_get_header (message,
reply_to_map[i].header);
if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback)
recipients = notmuch_message_get_header (message,
reply_to_map[i].fallback);
addr = add_recipients_for_string (reply, config,
reply_to_map[i].recipient_type,
recipients);
if (from_addr == NULL)
from_addr = addr;
}
return from_addr;
}
/* Augment the recipients of 'reply' from the "Reply-to:", "From:",
* "To:", "Cc:", and "Bcc:" headers of 'message'.
*
* If 'reply_all' is true, use sender and all recipients, otherwise
* scan the headers for the first that contains something other than
* the user's addresses and add the recipients from this header
* (typically this would be reply-to-sender, but also handles reply to
* user's own message in a sensible way).
*
* If any of the user's addresses were found in these headers, the
* first of these returned, otherwise NULL is returned.
*/
static const char *
add_recipients_from_message (GMimeMessage *reply,
notmuch_config_t *config,
notmuch_message_t *message,
notmuch_bool_t reply_all)
{
struct {
const char *header;
const char *fallback;
GMimeRecipientType recipient_type;
} reply_to_map[] = {
{ "reply-to", "from", GMIME_RECIPIENT_TYPE_TO },
{ "to", NULL, GMIME_RECIPIENT_TYPE_TO },
{ "cc", NULL, GMIME_RECIPIENT_TYPE_CC },
{ "bcc", NULL, GMIME_RECIPIENT_TYPE_BCC }
};
const char *from_addr = NULL;
unsigned int i;
unsigned int n = 0;
/* Some mailing lists munge the Reply-To header despite it being A Bad
* Thing, see http://www.unicom.com/pw/reply-to-harmful.html
*
* The munging is easy to detect, because it results in a
* redundant reply-to header, (with an address that already exists
* in either To or Cc). So in this case, we ignore the Reply-To
* field and use the From header. This ensures the original sender
* will get the reply even if not subscribed to the list. Note
* that the address in the Reply-To header will always appear in
* the reply.
*/
if (reply_to_header_is_redundant (message)) {
reply_to_map[0].header = "from";
reply_to_map[0].fallback = NULL;
}
for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {
const char *recipients;
recipients = notmuch_message_get_header (message,
reply_to_map[i].header);
if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback)
recipients = notmuch_message_get_header (message,
reply_to_map[i].fallback);
n += scan_address_string (recipients, config, reply,
reply_to_map[i].recipient_type, &from_addr);
if (!reply_all && n) {
/* Stop adding new recipients in reply-to-sender mode if
* we have added some recipient(s) above.
*
* This also handles the case of user replying to his own
* message, where reply-to/from is not a recipient. In
* this case there may be more than one recipient even if
* not replying to all.
*/
reply = NULL;
/* From address and some recipients are enough, bail out. */
if (from_addr)
break;
}
}
return from_addr;
}
