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// Copyright 2015 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 "components/proximity_auth/webui/proximity_auth_webui_handler.h"
#include "base/bind.h"
#include "base/i18n/time_formatting.h"
#include "base/values.h"
#include "components/proximity_auth/cryptauth/base64url.h"
#include "components/proximity_auth/cryptauth/proto/cryptauth_api.pb.h"
#include "components/proximity_auth/logging/logging.h"
#include "components/proximity_auth/webui/proximity_auth_ui_delegate.h"
#include "content/public/browser/web_ui.h"
namespace proximity_auth {
namespace {
// Keys in the JSON representation of a log message.
const char kLogMessageTextKey[] = "text";
const char kLogMessageTimeKey[] = "time";
const char kLogMessageFileKey[] = "file";
const char kLogMessageLineKey[] = "line";
const char kLogMessageSeverityKey[] = "severity";
// Converts |log_message| to a raw dictionary value used as a JSON argument to
// JavaScript functions.
scoped_ptr<base::DictionaryValue> LogMessageToDictionary(
const LogBuffer::LogMessage& log_message) {
scoped_ptr<base::DictionaryValue> dictionary(new base::DictionaryValue());
dictionary->SetString(kLogMessageTextKey, log_message.text);
dictionary->SetString(
kLogMessageTimeKey,
base::TimeFormatTimeOfDayWithMilliseconds(log_message.time));
dictionary->SetString(kLogMessageFileKey, log_message.file);
dictionary->SetInteger(kLogMessageLineKey, log_message.line);
dictionary->SetInteger(kLogMessageSeverityKey,
static_cast<int>(log_message.severity));
return dictionary.Pass();
}
// Keys in the JSON representation of an ExternalDeviceInfo proto.
const char kExternalDevicePublicKey[] = "publicKey";
const char kExternalDeviceFriendlyName[] = "friendlyDeviceName";
const char kExternalDeviceUnlockKey[] = "unlockKey";
const char kExternalDeviceConnectionStatus[] = "connectionStatus";
// The possible values of the |kExternalDeviceConnectionStatus| field.
const char kExternalDeviceDisconnected[] = "disconnected";
// Converts an ExternalDeviceInfo proto to a JSON dictionary used in JavaScript.
scoped_ptr<base::DictionaryValue> ExternalDeviceInfoToDictionary(
const cryptauth::ExternalDeviceInfo& device_info) {
std::string base64_public_key;
Base64UrlEncode(device_info.public_key(), &base64_public_key);
scoped_ptr<base::DictionaryValue> dictionary(new base::DictionaryValue());
dictionary->SetString(kExternalDevicePublicKey, base64_public_key);
dictionary->SetString(kExternalDeviceFriendlyName,
device_info.friendly_device_name());
dictionary->SetBoolean(kExternalDeviceUnlockKey, device_info.unlock_key());
dictionary->SetString(kExternalDeviceConnectionStatus,
kExternalDeviceDisconnected);
return dictionary.Pass();
}
// Keys in the JSON representation of an IneligibleDevice proto.
const char kIneligibleDeviceReasons[] = "ineligibilityReasons";
// Converts an IneligibleDevice proto to a JSON dictionary used in JavaScript.
scoped_ptr<base::DictionaryValue> IneligibleDeviceToDictionary(
const cryptauth::IneligibleDevice& ineligible_device) {
scoped_ptr<base::ListValue> ineligibility_reasons(new base::ListValue());
for (const std::string& reason : ineligible_device.reasons()) {
ineligibility_reasons->AppendString(reason);
}
scoped_ptr<base::DictionaryValue> device_dictionary =
ExternalDeviceInfoToDictionary(ineligible_device.device());
device_dictionary->Set(kIneligibleDeviceReasons,
ineligibility_reasons.Pass());
return device_dictionary;
}
} // namespace
ProximityAuthWebUIHandler::ProximityAuthWebUIHandler(
ProximityAuthUIDelegate* delegate)
: delegate_(delegate), weak_ptr_factory_(this) {
LogBuffer::GetInstance()->AddObserver(this);
cryptauth_client_factory_ = delegate_->CreateCryptAuthClientFactory();
}
ProximityAuthWebUIHandler::~ProximityAuthWebUIHandler() {
LogBuffer::GetInstance()->RemoveObserver(this);
}
void ProximityAuthWebUIHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"clearLogBuffer", base::Bind(&ProximityAuthWebUIHandler::ClearLogBuffer,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"getLogMessages", base::Bind(&ProximityAuthWebUIHandler::GetLogMessages,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"findEligibleUnlockDevices",
base::Bind(&ProximityAuthWebUIHandler::FindEligibleUnlockDevices,
base::Unretained(this)));
}
void ProximityAuthWebUIHandler::OnLogMessageAdded(
const LogBuffer::LogMessage& log_message) {
scoped_ptr<base::DictionaryValue> dictionary =
LogMessageToDictionary(log_message);
web_ui()->CallJavascriptFunction("LogBufferInterface.onLogMessageAdded",
*dictionary);
}
void ProximityAuthWebUIHandler::OnLogBufferCleared() {
web_ui()->CallJavascriptFunction("LogBufferInterface.onLogBufferCleared");
}
void ProximityAuthWebUIHandler::GetLogMessages(const base::ListValue* args) {
base::ListValue json_logs;
for (const auto& log : *LogBuffer::GetInstance()->logs()) {
json_logs.Append(LogMessageToDictionary(log).release());
}
web_ui()->CallJavascriptFunction("LogBufferInterface.onGotLogMessages",
json_logs);
}
void ProximityAuthWebUIHandler::ClearLogBuffer(const base::ListValue* args) {
// The OnLogBufferCleared() observer function will be called after the buffer
// is cleared.
LogBuffer::GetInstance()->Clear();
}
void ProximityAuthWebUIHandler::FindEligibleUnlockDevices(
const base::ListValue* args) {
PA_LOG(INFO) << "Finding eligible unlock devices...";
cryptauth_client_ = cryptauth_client_factory_->CreateInstance();
cryptauth::FindEligibleUnlockDevicesRequest request;
*(request.mutable_device_classifier()) = delegate_->GetDeviceClassifier();
cryptauth_client_->FindEligibleUnlockDevices(
request,
base::Bind(&ProximityAuthWebUIHandler::OnFoundEligibleUnlockDevices,
weak_ptr_factory_.GetWeakPtr()),
base::Bind(&ProximityAuthWebUIHandler::OnCryptAuthClientError,
weak_ptr_factory_.GetWeakPtr()));
}
void ProximityAuthWebUIHandler::OnCryptAuthClientError(
const std::string& error_message) {
PA_LOG(WARNING) << "CryptAuth request failed: " << error_message;
base::StringValue error_string(error_message);
web_ui()->CallJavascriptFunction("CryptAuthInterface.onError", error_string);
}
void ProximityAuthWebUIHandler::OnFoundEligibleUnlockDevices(
const cryptauth::FindEligibleUnlockDevicesResponse& response) {
base::ListValue eligible_devices;
for (const auto& external_device : response.eligible_devices()) {
eligible_devices.Append(ExternalDeviceInfoToDictionary(external_device));
}
base::ListValue ineligible_devices;
for (const auto& ineligible_device : response.ineligible_devices()) {
ineligible_devices.Append(IneligibleDeviceToDictionary(ineligible_device));
}
PA_LOG(INFO) << "Found " << eligible_devices.GetSize()
<< " eligible devices and " << ineligible_devices.GetSize()
<< " ineligible devices.";
web_ui()->CallJavascriptFunction("CryptAuthInterface.onGotEligibleDevices",
eligible_devices, ineligible_devices);
}
} // namespace proximity_auth
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