From a04c35ec1b2c710da24ca4d18ebee13f9723c730 Mon Sep 17 00:00:00 2001
From: Jakub Adam <jakub.adam@ktknet.cz>
Date: Wed, 2 Sep 2015 12:12:40 +0200
Subject: [PATCH] mime: add utility function sipe_mime_parts_contain()

Allows easy inspection of MIME document's basic structure.
---
 src/api/sipe-mime.h         | 15 +++++++++-
 src/core/Makefile.am        |  1 +
 src/core/sipe-mime-common.c | 67 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 82 insertions(+), 1 deletion(-)
 create mode 100644 src/core/sipe-mime-common.c

diff --git a/src/api/sipe-mime.h b/src/api/sipe-mime.h
index ca6fd872..9b208808 100644
--- a/src/api/sipe-mime.h
+++ b/src/api/sipe-mime.h
@@ -3,7 +3,7 @@
  *
  * pidgin-sipe
  *
- * Copyright (C) 2010-11 SIPE Project <http://sipe.sourceforge.net/>
+ * Copyright (C) 2010-2015 SIPE Project <http://sipe.sourceforge.net/>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -55,3 +55,16 @@ void sipe_mime_parts_foreach(const gchar *type,
 			     const gchar *body,
 			     sipe_mime_parts_cb callback,
 			     gpointer user_data);
+
+/**
+ * Checks whether MIME document contains a part with given type.
+ *
+ * @param type      content type of the whole MIME document.
+ * @param body      body of the MIME document.
+ * @param part_type the MIME type to search for in document parts.
+ *
+ * @return @c TRUE if @c body contains such part, otherwise @c FALSE.
+ */
+gboolean sipe_mime_parts_contain(const gchar *type,
+				 const gchar *body,
+				 const gchar *part_type);
diff --git a/src/core/Makefile.am b/src/core/Makefile.am
index d57ba3e5..2f0cda6d 100644
--- a/src/core/Makefile.am
+++ b/src/core/Makefile.am
@@ -67,6 +67,7 @@ libsipe_core_la_SOURCES = \
 	sipe-im.c \
 	sipe-incoming.h \
 	sipe-incoming.c \
+	sipe-mime-common.c \
 	sipe-notify.h \
 	sipe-notify.c \
 	sipe-ocs2005.h \
diff --git a/src/core/sipe-mime-common.c b/src/core/sipe-mime-common.c
new file mode 100644
index 00000000..d1d3e3f4
--- /dev/null
+++ b/src/core/sipe-mime-common.c
@@ -0,0 +1,67 @@
+/**
+ * @file sipe-mime.c
+ *
+ * pidgin-sipe
+ *
+ * Copyright (C) 2015 SIPE Project <http://sipe.sourceforge.net/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <glib.h>
+
+#include "sipe-common.h"
+#include "sipe-mime.h"
+#include "sipe-utils.h"
+
+struct parts_contain_cb_data {
+	const gchar * type;
+	gboolean result;
+};
+
+static void
+parts_contain_cb(gpointer user_data, const GSList *fields,
+		 SIPE_UNUSED_PARAMETER const gchar *body,
+		 SIPE_UNUSED_PARAMETER gsize length)
+{
+	struct parts_contain_cb_data *data = user_data;
+
+	if (!data->result &&
+	    sipe_strequal(data->type, sipe_utils_nameval_find(fields, "Content-Type"))) {
+		data->result = TRUE;
+	}
+}
+
+gboolean
+sipe_mime_parts_contain(const gchar *type,
+			const gchar *body,
+			const gchar *part_type)
+{
+	struct parts_contain_cb_data data;
+	data.type = part_type;
+	data.result = FALSE;
+
+	sipe_mime_parts_foreach(type, body, parts_contain_cb, &data);
+	return data.result;
+}
+
+/*
+  Local Variables:
+  mode: c
+  c-file-style: "bsd"
+  indent-tabs-mode: t
+  tab-width: 8
+  End:
+*/
-- 
2.11.4.GIT