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// 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.
#include "components/proximity_auth/remote_status_update.h"
#include "base/logging.h"
#include "base/values.h"
namespace {
// The value of the 'type' status update field.
const char kStatusUpdateType[] = "status_update";
// Keys in the serialized RemoteStatusUpdate JSON object.
const char kType[] = "type";
const char kUserPresence[] = "user_presence";
const char kSecureScreenLock[] = "secure_screen_lock";
const char kTrustAgent[] = "trust_agent";
// Values in the serialized RemoteStatusUpdate JSON object.
const char kUserPresent[] = "present";
const char kUserAbsent[] = "absent";
const char kUserPresenceUnknown[] = "unknown";
const char kSecureScreenLockEnabled[] = "enabled";
const char kSecureScreenLockDisabled[] = "disabled";
const char kSecureScreenLockStateUnknown[] = "unknown";
const char kTrustAgentEnabled[] = "enabled";
const char kTrustAgentDisabled[] = "disabled";
const char kTrustAgentUnsupported[] = "unsupported";
} // namespace
namespace proximity_auth {
// static
scoped_ptr<RemoteStatusUpdate> RemoteStatusUpdate::Deserialize(
const base::DictionaryValue& serialized_value) {
std::string type;
if (!serialized_value.GetString(kType, &type) || type != kStatusUpdateType) {
VLOG(1) << "Unable to parse remote status update: unexpected type. "
<< "Expected: '" << kStatusUpdateType << "', "
<< "Saw: '" << type << "'.";
return scoped_ptr<RemoteStatusUpdate>();
}
std::string user_presence, secure_screen_lock_state, trust_agent_state;
if (!serialized_value.GetString(kUserPresence, &user_presence) ||
!serialized_value.GetString(kSecureScreenLock,
&secure_screen_lock_state) ||
!serialized_value.GetString(kTrustAgent, &trust_agent_state)) {
VLOG(1) << "Unable to parse remote status update: missing data value. "
<< "Status update:\n" << serialized_value;
return scoped_ptr<RemoteStatusUpdate>();
}
scoped_ptr<RemoteStatusUpdate> parsed_update(new RemoteStatusUpdate);
if (user_presence == kUserPresent) {
parsed_update->user_presence = USER_PRESENT;
} else if (user_presence == kUserAbsent) {
parsed_update->user_presence = USER_ABSENT;
} else if (user_presence == kUserPresenceUnknown) {
parsed_update->user_presence = USER_PRESENCE_UNKNOWN;
} else {
VLOG(1) << "Unable to parse remote status update: invalid user presence: '"
<< user_presence << "'.";
return scoped_ptr<RemoteStatusUpdate>();
}
if (secure_screen_lock_state == kSecureScreenLockEnabled) {
parsed_update->secure_screen_lock_state = SECURE_SCREEN_LOCK_ENABLED;
} else if (secure_screen_lock_state == kSecureScreenLockDisabled) {
parsed_update->secure_screen_lock_state = SECURE_SCREEN_LOCK_DISABLED;
} else if (secure_screen_lock_state == kSecureScreenLockStateUnknown) {
parsed_update->secure_screen_lock_state = SECURE_SCREEN_LOCK_STATE_UNKNOWN;
} else {
VLOG(1) << "Unable to parse remote status update: invalid secure screen "
<< "lock state: '" << secure_screen_lock_state << "'.";
return scoped_ptr<RemoteStatusUpdate>();
}
if (trust_agent_state == kTrustAgentEnabled) {
parsed_update->trust_agent_state = TRUST_AGENT_ENABLED;
} else if (trust_agent_state == kTrustAgentDisabled) {
parsed_update->trust_agent_state = TRUST_AGENT_DISABLED;
} else if (trust_agent_state == kTrustAgentUnsupported) {
parsed_update->trust_agent_state = TRUST_AGENT_UNSUPPORTED;
} else {
VLOG(1) << "Unable to parse remote status update: invalid trust agent "
<< "state: '" << trust_agent_state << "'.";
return scoped_ptr<RemoteStatusUpdate>();
}
return parsed_update.Pass();
}
} // namespace proximity_auth
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