Certificate Transparency: Parse Signed Tree Heads and validate them

net/cert/ct_log_response_parser.h

Index: net/cert/ct_log_response_parser.h
diff --git a/net/cert/ct_log_response_parser.h b/net/cert/ct_log_response_parser.h
new file mode 100644
index 0000000000000000000000000000000000000000..068d7801957b686096b2689d2d039ebdd736c43c
--- /dev/null
+++ b/net/cert/ct_log_response_parser.h
@@ -0,0 +1,29 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_CERT_CT_LOG_RESPONSE_PARSER_H_
+#define NET_CERT_CT_LOG_RESPONSE_PARSER_H_
+
+#include "base/strings/string_piece.h"
+#include "net/base/net_export.h"
+
+namespace net {
+
+namespace ct {
+struct SignedTreeHead;
+
+// A class for decoding Certificate Transparency logs' JSON replies.
+class NET_EXPORT CTLogResponseParser {
+ public:
+  // Fills in |sth| from its JSON representation in |json_sth|.
+  // Returns true and fills in |sth| if all fields are present and valid.
+  // Otherwise, returns false and does not modify |sth|.
+  static bool FillSignedTreeHead(const base::StringPiece& json_sth,

[Ryan Sleevi, 2014/04/09 18:23:11]

Style: Classes with just a static method are generally discouraged - see
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Nonmem...

naming: s/sth/signed_tree_head/ - sth is not going to be a commonly-understood
abbreviation.

[Eran Messeri, 2014/04/10 21:08:29]

Done and done.

+                                 SignedTreeHead* sth);
+};
+
+}  // namespace ct
+
+}  // namespace net
+#endif  // NET_CERT_CT_LOG_RESPONSE_PARSER_H_