File evolution-show-security-bar-above-message-headers.patch of Package evolution.11004

From 9c55a311325f5905d8b8403b96607e46cf343f21 Mon Sep 17 00:00:00 2001
From: Milan Crha <mcrha@redhat.com>
Date: Mon, 22 Oct 2018 18:53:28 +0200
Subject: [PATCH] I#120 - Show security bar above message headers

Closes https://gitlab.gnome.org/GNOME/evolution/issues/120
---
 src/em-format/e-mail-parser.c | 63 +++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/src/em-format/e-mail-parser.c b/src/em-format/e-mail-parser.c
index 793d891dfc..c81bcc2aca 100644
--- a/src/em-format/e-mail-parser.c
+++ b/src/em-format/e-mail-parser.c
@@ -79,6 +79,67 @@ GType e_mail_parser_application_smime_get_type (void);
 
 static gpointer parent_class;
 
+static void
+mail_parser_move_security_before_headers (GQueue *part_queue)
+{
+	GList *link, *last_headers = NULL;
+	GSList *headers_stack = NULL;
+
+	link = g_queue_peek_head_link (part_queue);
+	while (link) {
+		EMailPart *part = link->data;
+		const gchar *id;
+
+		if (!part) {
+			link = g_list_next (link);
+			continue;
+		}
+
+		id = e_mail_part_get_id (part);
+		if (!id) {
+			link = g_list_next (link);
+			continue;
+		}
+
+		if (g_str_has_suffix (id, ".rfc822")) {
+			headers_stack = g_slist_prepend (headers_stack, last_headers);
+			last_headers = NULL;
+		} else if (g_str_has_suffix (id, ".rfc822.end")) {
+			g_warn_if_fail (headers_stack != NULL);
+
+			if (headers_stack) {
+				last_headers = headers_stack->data;
+				headers_stack = g_slist_remove (headers_stack, last_headers);
+			} else {
+				last_headers = NULL;
+			}
+		}
+
+		if (g_strcmp0 (e_mail_part_get_mime_type (part), "application/vnd.evolution.headers") == 0) {
+			last_headers = link;
+			link = g_list_next (link);
+		} else if (g_strcmp0 (e_mail_part_get_mime_type (part), "application/vnd.evolution.secure-button") == 0) {
+			g_warn_if_fail (last_headers != NULL);
+
+			if (last_headers) {
+				GList *next = g_list_next (link);
+
+				g_warn_if_fail (g_queue_remove (part_queue, part));
+				g_queue_insert_before (part_queue, last_headers, part);
+
+				link = next;
+			} else {
+				link = g_list_next (link);
+			}
+		} else {
+			link = g_list_next (link);
+		}
+	}
+
+	g_warn_if_fail (headers_stack == NULL);
+	g_slist_free (headers_stack);
+}
+
 static void
 mail_parser_run (EMailParser *parser,
                  EMailPartList *part_list,
@@ -142,6 +203,8 @@ mail_parser_run (EMailParser *parser,
 			break;
 	}
 
+	mail_parser_move_security_before_headers (&mail_part_queue);
+
 	while (!g_queue_is_empty (&mail_part_queue)) {
 		mail_part = g_queue_pop_head (&mail_part_queue);
 		e_mail_part_list_add_part (part_list, mail_part);
-- 
2.20.1
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