mu: decode mailing-list headers

MIME-decode mailing list headers, too. Also add a unit test. This fixes
issue #728.

lib/mu-msg.c

@@ -376,8 +376,20 @@ mu_msg_get_msgid  (MuMsg *self)
 const char*
 mu_msg_get_mailing_list (MuMsg *self)
 {
+	const char	*ml;
+	char		*decml;
+	
 	g_return_val_if_fail (self, NULL);
-	return get_str_field (self, MU_MSG_FIELD_ID_MAILING_LIST);
+	
+	ml = get_str_field (self, MU_MSG_FIELD_ID_MAILING_LIST);
+	if (!ml)
+		return NULL;
+
+	decml = g_mime_utils_header_decode_text (ml);
+	if (!decml)
+		return NULL;
+
+	return free_later_str (self, decml);
 }
 
 

lib/tests/test-mu-msg.c

@@ -334,8 +334,9 @@ test_mu_msg_references (void)
 static void
 test_mu_msg_references_dups (void)
 {
-	MuMsg *msg;
+	MuMsg		*msg;
-	const GSList *refs;
+	const GSList	*refs;
+	const char	*mlist;
 
 	msg = get_msg (MU_TESTMAILDIR4 "/1252168370_3.14675.cthulhu!2,S");
 	refs = mu_msg_get_references(msg);
@@ -363,6 +364,9 @@ test_mu_msg_references_dups (void)
 			 "20051211184308.GB13513@gauss.org");
 	refs = g_slist_next (refs);
 
+	mlist = mu_msg_get_mailing_list (msg);
+	g_assert_cmpstr (mlist ,==, "Example of List Id");
+		
 	mu_msg_unref (msg);
 }
 
@@ -405,10 +409,6 @@ test_mu_msg_references_many (void)
 	mu_msg_unref (msg);
 }
 
-
-
-
-
 static void
 test_mu_msg_tags (void)
 {

lib/tests/testdir4/1252168370_3.14675.cthulhu!2,S

@@ -9,6 +9,7 @@ User-Agent: Mozilla Thunderbird 1.0.7 (X11/20051010)
 X-Accept-Language: nl-NL, nl, en
 MIME-Version: 1.0
 To: dfgh@floppydisk.nl
+List-Id: =?utf-8?q?Example_of_List_Id?=
 Subject: Re: xyz
 References: <439C1136.90504@euler.org> <4399DD94.5070309@euler.org> <20051209233303.GA13812@gauss.org> <439B41ED.2080402@euler.org> <4399DD94.5070309@euler.org> <20051209233303.GA13812@gauss.org> <439A1E03.3090604@euler.org> <20051211184308.GB13513@gauss.org>
 In-Reply-To: <20051211184308.GB13513@gauss.org>