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// Copyright 2013 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.
#include "remoting/protocol/pairing_registry.h"
#include "base/base64.h"
#include "base/bind.h"
#include "base/guid.h"
#include "crypto/random.h"
namespace remoting {
namespace protocol {
// How many bytes of random data to use for the client id and shared secret.
const int kKeySize = 16;
PairingRegistry::PairingRegistry(scoped_ptr<Delegate> delegate)
: delegate_(delegate.Pass()) {
DCHECK(delegate_);
}
PairingRegistry::~PairingRegistry() {
}
PairingRegistry::Pairing PairingRegistry::CreatePairing(
const std::string& client_name) {
DCHECK(CalledOnValidThread());
Pairing result;
result.client_name = client_name;
result.client_id = base::GenerateGUID();
// Create a random shared secret to authenticate this client.
char buffer[kKeySize];
crypto::RandBytes(buffer, arraysize(buffer));
if (!base::Base64Encode(base::StringPiece(buffer, arraysize(buffer)),
&result.shared_secret)) {
LOG(FATAL) << "Base64Encode failed.";
}
// Save the result via the Delegate and return it to the caller.
delegate_->AddPairing(result);
return result;
}
void PairingRegistry::GetPairing(const std::string& client_id,
const GetPairingCallback& callback) {
DCHECK(CalledOnValidThread());
delegate_->GetPairing(client_id, callback);
}
void NotImplementedPairingRegistryDelegate::AddPairing(
const PairingRegistry::Pairing& new_paired_client) {
NOTIMPLEMENTED();
}
void NotImplementedPairingRegistryDelegate::GetPairing(
const std::string& client_id,
const PairingRegistry::GetPairingCallback& callback) {
NOTIMPLEMENTED();
callback.Run(PairingRegistry::Pairing());
}
} // namespace protocol
} // namespace remoting
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