Define FIDO U2f Device abstraction

device/u2f/u2f_device.cc

Index: device/u2f/u2f_device.cc
diff --git a/device/u2f/u2f_device.cc b/device/u2f/u2f_device.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f065c69d8b1707de136b6bc48446f14c7e299fae
--- /dev/null
+++ b/device/u2f/u2f_device.cc
@@ -0,0 +1,90 @@
+// Copyright 2017 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 "base/bind.h"
+#include "u2f_apdu_command.h"
+#include "u2f_device.h"
+
+namespace device {
+
+U2fDevice::U2fDevice() : weak_factory_(this) {}
+
+U2fDevice::~U2fDevice() {}
+
+void U2fDevice::Register(const std::vector<uint8_t>& app_param,
+                         U2fDevice::ProtocolVersion version,
+                         const std::vector<uint8_t>& challenge_param,
+                         const MessageCallback& callback) {
+  scoped_refptr<U2fApduCommand> register_cmd =
+      U2fApduCommand::CreateRegister(app_param, challenge_param);
+  if (!register_cmd) {
+    callback.Run(ReturnCode::INVALID_PARAMS, std::vector<uint8_t>());
+    return;
+  }
+  DeviceTransact(std::move(register_cmd),
+                 base::Bind(&U2fDevice::OnRegisterComplete,
+                            weak_factory_.GetWeakPtr(), callback));
+}
+
+void U2fDevice::Sign(const std::vector<uint8_t>& app_param,
+                     const std::vector<uint8_t>& challenge_param,
+                     const std::vector<uint8_t>& key_handle,
+                     const MessageCallback& callback) {
+  scoped_refptr<U2fApduCommand> sign_cmd =
+      U2fApduCommand::CreateSign(app_param, challenge_param, key_handle);
+  if (!sign_cmd) {
+    callback.Run(ReturnCode::INVALID_PARAMS, std::vector<uint8_t>());
+    return;
+  }
+  DeviceTransact(std::move(sign_cmd),
+                 base::Bind(&U2fDevice::OnSignComplete,
+                            weak_factory_.GetWeakPtr(), callback));
+}
+
+void U2fDevice::Version(const VersionCallback& callback) {
+  scoped_refptr<U2fApduCommand> version_cmd = U2fApduCommand::CreateVersion();
+  if (!version_cmd) {
+    callback.Run(false, ProtocolVersion::UNKNOWN);
+    return;
+  }
+  DeviceTransact(std::move(version_cmd),
+                 base::Bind(&U2fDevice::OnVersionComplete,
+                            weak_factory_.GetWeakPtr(), callback));
+}
+
+void U2fDevice::OnRegisterComplete(
+    const MessageCallback& callback,
+    bool success,
+    scoped_refptr<U2fApduResponse> register_response) {
+  NOTIMPLEMENTED();
+}
+
+void U2fDevice::OnSignComplete(const MessageCallback& callback,
+                               bool success,
+                               scoped_refptr<U2fApduResponse> sign_response) {
+  NOTIMPLEMENTED();
+}
+
+void U2fDevice::OnVersionComplete(
+    const VersionCallback& callback,
+    bool success,
+    scoped_refptr<U2fApduResponse> version_response) {
+  if (success && version_response &&
+      version_response->status() == U2fApduResponse::Status::SW_NO_ERROR &&
+      version_response->data() ==
+          std::vector<uint8_t>({'U', '2', 'F', '_', 'V', '2'})) {
+    callback.Run(success, ProtocolVersion::U2F_V2);
+    return;
+  }
+  callback.Run(success, ProtocolVersion::UNKNOWN);
+}
+
+void U2fDevice::OnLegacyVersionComplete(
+    const VersionCallback& callback,
+    bool success,
+    scoped_refptr<U2fApduResponse> legacy_version_response) {
+  NOTIMPLEMENTED();
+}
+
+}  // namespace device