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// Copyright (c) 2012 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 "chrome/browser/chromeos/dbus/introspectable_client.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/logging.h"
#include "base/chromeos/chromeos_version.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
namespace {
// D-Bus specification constants.
const char kIntrospectableInterface[] = "org.freedesktop.DBus.Introspectable";
const char kIntrospect[] = "Introspect";
} // namespace
namespace chromeos {
// The IntrospectableClient implementation used in production.
class IntrospectableClientImpl : public IntrospectableClient {
public:
explicit IntrospectableClientImpl(dbus::Bus* bus)
: weak_ptr_factory_(this),
bus_(bus) {
DVLOG(1) << "Creating IntrospectableClientImpl";
}
virtual ~IntrospectableClientImpl() {
}
// IntrospectableClient override.
virtual void Introspect(const std::string& service_name,
const dbus::ObjectPath& object_path,
const IntrospectCallback& callback) OVERRIDE {
dbus::MethodCall method_call(kIntrospectableInterface, kIntrospect);
dbus::ObjectProxy* object_proxy = bus_->GetObjectProxy(service_name,
object_path);
object_proxy->CallMethod(
&method_call,
dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&IntrospectableClientImpl::OnIntrospect,
weak_ptr_factory_.GetWeakPtr(),
service_name, object_path, callback));
}
private:
// Called by dbus:: when a response for Introspect() is recieved.
void OnIntrospect(const std::string& service_name,
const dbus::ObjectPath& object_path,
const IntrospectCallback& callback,
dbus::Response* response) {
// Parse response.
bool success = false;
std::string xml_data;
if (response != NULL) {
dbus::MessageReader reader(response);
if (!reader.PopString(&xml_data)) {
LOG(WARNING) << "Introspect response has incorrect paramters: "
<< response->ToString();
} else {
success = true;
}
}
// Notify client.
callback.Run(service_name, object_path, xml_data, success);
}
// Weak pointer factory for generating 'this' pointers that might live longer
// than we do.
base::WeakPtrFactory<IntrospectableClientImpl> weak_ptr_factory_;
dbus::Bus* bus_;
DISALLOW_COPY_AND_ASSIGN(IntrospectableClientImpl);
};
// The IntrospectableClient implementation used on Linux desktop, which does
// nothing.
class IntrospectableClientStubImpl : public IntrospectableClient {
public:
// IntrospectableClient override.
virtual void Introspect(const std::string& service_name,
const dbus::ObjectPath& object_path,
const IntrospectCallback& callback) OVERRIDE {
VLOG(1) << "Introspect: " << service_name << " " << object_path.value();
callback.Run(service_name, object_path, "", false);
}
};
IntrospectableClient::IntrospectableClient() {
}
IntrospectableClient::~IntrospectableClient() {
}
// static
IntrospectableClient* IntrospectableClient::Create(dbus::Bus* bus) {
if (base::chromeos::IsRunningOnChromeOS()) {
return new IntrospectableClientImpl(bus);
} else {
return new IntrospectableClientStubImpl();
}
}
} // namespace chromeos
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