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#include <stdlib.h>
#include "antispam-plugin.h"
#include "signature.h"
#include "mail-storage-private.h"
const char *signature_hdr = "X-DSPAM-Signature";
static int signature_nosig_ignore = 0;
void signature_init(void)
{
const char *tmp = get_setting("SIGNATURE");
if (tmp)
signature_hdr = tmp;
debug("signature header line is \"%s\"\n", signature_hdr);
tmp = get_setting("SIGNATURE_MISSING");
if (!tmp)
tmp = "error";
if (strcmp(tmp, "move") == 0) {
signature_nosig_ignore = 1;
debug("will silently move mails with missing signature\n");
} else if (strcmp(tmp, "error") != 0) {
debug("invalid signature_missing setting '%s', ignoring\n", tmp);
}
}
int signature_extract_to_list(struct mailbox_transaction_context *t,
struct mail *mail, struct siglist **list,
enum classification wanted)
{
const char *const *signatures;
struct siglist *item;
signatures = get_mail_headers(mail, signature_hdr);
if (!signatures || !signatures[0]) {
if (!signature_nosig_ignore) {
mail_storage_set_error(t->box->storage,
ME(NOTPOSSIBLE)
"antispam signature not found");
return -1;
} else {
return 0;
}
}
while (signatures[1])
signatures++;
item = i_new(struct siglist, 1);
item->next = *list;
item->wanted = wanted;
item->sig = i_strdup(signatures[0]);
*list = item;
return 0;
}
int signature_extract(struct mailbox_transaction_context *t,
struct mail *mail, const char **signature)
{
const char *const *signatures;
signatures = get_mail_headers(mail, signature_hdr);
if (!signatures || !signatures[0]) {
if (!signature_nosig_ignore) {
mail_storage_set_error(t->box->storage,
ME(NOTPOSSIBLE)
"antispam signature not found");
return -1;
} else {
*signature = NULL;
return 0;
}
}
while (signatures[1])
signatures++;
*signature = signatures[0];
return 0;
}
void signature_list_free(struct siglist **list)
{
struct siglist *item, *next;
i_assert(list);
item = *list;
while (item) {
next = item->next;
i_free(item->sig);
i_free(item);
item = next;
if (item)
next = item->next;
}
}
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