From a709da98c462abc9f6b08e4288525ad92698685f Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 28 Mar 2018 13:25:34 +0100
Subject: [Feature] Allow to fold headers on stop characters

---
 src/libutil/str_util.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/libutil/str_util.c')

diff --git a/src/libutil/str_util.c b/src/libutil/str_util.c
index 7d346354f..238f95c87 100644
--- a/src/libutil/str_util.c
+++ b/src/libutil/str_util.c
@@ -918,7 +918,8 @@ GString *
 rspamd_header_value_fold (const gchar *name,
 		const gchar *value,
 		guint fold_max,
-		enum rspamd_newlines_type how)
+		enum rspamd_newlines_type how,
+		const gchar *fold_on_chars)
 {
 	GString *res;
 	const guint default_fold_max = 76;
@@ -1019,6 +1020,13 @@ rspamd_header_value_fold (const gchar *name,
 					cur_len ++;
 				}
 			}
+			else if (fold_on_chars && strchr (fold_on_chars, *p) != NULL) {
+				fold_type = fold_after;
+				state = fold_token;
+				next_state = read_token;
+
+				p ++;
+			}
 			else {
 				p ++;
 				cur_len ++;
-- 
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