[Minor] Implement arc-signatures generation

diff --git a/src/libserver/dkim.c b/src/libserver/dkim.c
index 033fce15cc740f77bc56742058141cd66c8ea487..0339d5d582c27d6740e4fb257e58a9d2109f0843 100644 (file)
--- a/src/libserver/dkim.c
+++ b/src/libserver/dkim.c
@@ -2283,14 +2283,33 @@ rspamd_dkim_sign (struct rspamd_task *task,
        }
 
        hdr = g_string_sized_new (255);
-       rspamd_printf_gstring (hdr, "v=1; a=rsa-sha256; c=%s/%s; d=%s; s=%s; ",
-                       ctx->common.header_canon_type == DKIM_CANON_RELAXED ? "relaxed" : "simple",
-                       ctx->common.body_canon_type == DKIM_CANON_RELAXED ? "relaxed" : "simple",
-                       domain, selector);
+
+       if (ctx->common.type == RSPAMD_DKIM_NORMAL) {
+               rspamd_printf_gstring (hdr, "v=1; a=rsa-sha256; c=%s/%s; d=%s; s=%s; ",
+                               ctx->common.header_canon_type == DKIM_CANON_RELAXED ?
+                                               "relaxed" : "simple",
+                               ctx->common.body_canon_type == DKIM_CANON_RELAXED ?
+                                               "relaxed" : "simple",
+                               domain, selector);
+       }
+       else if (ctx->common.type == RSPAMD_DKIM_ARC_SIG) {
+               rspamd_printf_gstring (hdr, "i=%d; a=rsa-sha256; c=%s/%s; d=%s; s=%s; ",
+                               idx,
+                               ctx->common.header_canon_type == DKIM_CANON_RELAXED ?
+                                               "relaxed" : "simple",
+                               ctx->common.body_canon_type == DKIM_CANON_RELAXED ?
+                                               "relaxed" : "simple",
+                               domain, selector);
+       }
+       else {
+               /* Shouldn't be called for arc seal */
+               g_assert_not_reached ();
+       }
 
        if (expire > 0) {
                rspamd_printf_gstring (hdr, "x=%t; ", expire);
        }
+
        if (len > 0) {
                rspamd_printf_gstring (hdr, "l=%z; ", len);
        }