Add Certificate Transparency logs auditing

net/cert/merkle_tree_leaf.h

 // Copyright 2016 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_MERKLE_TREE_LEAF_H_
 #define NET_CERT_MERKLE_TREE_LEAF_H_
 
 #include <memory>
 #include <string>
 
 #include "base/time/time.h"
 #include "net/base/net_export.h"
 #include "net/cert/signed_certificate_timestamp.h"
 
 namespace net {
 
 class X509Certificate;
 
 namespace ct {
 
 // Represents a MerkleTreeLeaf as defined in RFC6962, section 3.4.
 // Has all the data as the MerkleTreeLeaf defined in the RFC, arranged
 // slightly differently.
 struct NET_EXPORT MerkleTreeLeaf {
   MerkleTreeLeaf();
+  MerkleTreeLeaf(const MerkleTreeLeaf& other);

[Rob Percival, 2016/05/26 17:33:15]

Why define a copy constructor?

[Eran Messeri, 2016/06/30 19:58:28]

The compiler produces an error about "Complex class/struct needs an explicit
out-of-line copy constructor.".
That indicates the class is copied somewhere, but I didn't find exactly where
(probably because it's used in STL containers and I'm using algorithms to move
them around).

More than happy to hear if you have a clue why it does that (note this now
applies to the ObservedLeaf class I've added as well).

   ~MerkleTreeLeaf();
 
   // The log id this leaf belongs to.
   std::string log_id;
 
   // Certificate / Precertificate and indication of entry type.
   LogEntry log_entry;
 
   // Timestamp from the SCT.
   base::Time timestamp;
 
   // Extensions from the SCT.
   std::string extensions;
 };
 
 NET_EXPORT bool GetMerkleTreeLeaf(const X509Certificate* cert,
                                   const SignedCertificateTimestamp* sct,
                                   MerkleTreeLeaf* merkle_tree_leaf);
 
 // Sets |*out| to the hash of the Merkle |tree_leaf|, as defined in RFC6962.
 // Returns true if the hash was generated, false if an error occurred.
 NET_EXPORT bool Hash(const MerkleTreeLeaf& tree_leaf, std::string* out);
 
 }  // namespace ct
 
 }  // namespace net
 
 #endif  // NET_CERT_MERKLE_TREE_LEAF_H_