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// Copyright (c) 2011 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.
#ifndef CHROME_BROWSER_POLICY_DEVICE_MANAGEMENT_SERVICE_H_
#define CHROME_BROWSER_POLICY_DEVICE_MANAGEMENT_SERVICE_H_
#pragma once
#include <deque>
#include <map>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "content/public/common/url_fetcher_delegate.h"
#include "googleurl/src/gurl.h"
namespace net {
class URLRequestContextGetter;
class URLRequestStatus;
typedef std::vector<std::string> ResponseCookies;
}
namespace policy {
class DeviceManagementBackend;
// The device management service is responsible for everything related to
// communication with the device management server. It creates the backends
// objects that the device management policy provider and friends use to issue
// requests.
class DeviceManagementService : public content::URLFetcherDelegate {
public:
// Describes a device management job handled by the service.
class DeviceManagementJob {
public:
virtual ~DeviceManagementJob() {}
// Handles the URL request response.
virtual void HandleResponse(const net::URLRequestStatus& status,
int response_code,
const net::ResponseCookies& cookies,
const std::string& data) = 0;
// Gets the URL to contact.
virtual GURL GetURL(const std::string& server_url) = 0;
// Configures the fetcher, setting up payload and headers.
virtual void ConfigureRequest(content::URLFetcher* fetcher) = 0;
};
explicit DeviceManagementService(const std::string& server_url);
virtual ~DeviceManagementService();
// Constructs a device management backend for use by client code. Ownership of
// the returned backend object is transferred to the caller.
// Marked virtual for the benefit of tests.
virtual DeviceManagementBackend* CreateBackend();
// Schedules a task to run |Initialize| after |delay_milliseconds| had passed.
void ScheduleInitialization(int64 delay_milliseconds);
// Makes the service stop all requests and drop the reference to the request
// context.
void Shutdown();
// Adds a job. Caller must make sure the job pointer stays valid until the job
// completes or gets canceled via RemoveJob().
void AddJob(DeviceManagementJob* job);
// Removes a job. The job will be removed and won't receive a completion
// callback.
void RemoveJob(DeviceManagementJob* job);
protected:
// Starts the given job.
virtual void StartJob(DeviceManagementJob* job, bool bypass_proxy);
private:
typedef std::map<const content::URLFetcher*, DeviceManagementJob*>
JobFetcherMap;
typedef std::deque<DeviceManagementJob*> JobQueue;
// content::URLFetcherDelegate override.
virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
// Does the actual initialization using the request context specified for
// |PrepareInitialization|. This will also fire any pending network requests.
void Initialize();
// Server at which to contact the service.
const std::string server_url_;
// The request context we use.
scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
// The jobs we currently have in flight.
JobFetcherMap pending_jobs_;
// Jobs that are registered, but not started yet.
JobQueue queued_jobs_;
// If this service is initialized, incoming requests get fired instantly.
// If it is not initialized, incoming requests are queued.
bool initialized_;
// Used to create tasks to run |Initialize| delayed on the UI thread.
base::WeakPtrFactory<DeviceManagementService> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(DeviceManagementService);
};
} // namespace policy
#endif // CHROME_BROWSER_POLICY_DEVICE_MANAGEMENT_SERVICE_H_
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