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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.
#ifndef CHROME_BROWSER_LOCAL_DISCOVERY_GCD_API_FLOW_H_
#define CHROME_BROWSER_LOCAL_DISCOVERY_GCD_API_FLOW_H_
#include <string>
#include "google_apis/gaia/oauth2_token_service.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_context_getter.h"
namespace local_discovery {
// API flow for communicating with cloud print and cloud devices.
class GCDApiFlow {
public:
// TODO(noamsml): Better error model for this class.
enum Status {
SUCCESS,
ERROR_TOKEN,
ERROR_NETWORK,
ERROR_HTTP_CODE,
ERROR_FROM_SERVER,
ERROR_MALFORMED_RESPONSE
};
// Provides GCDApiFlowImpl with parameters required to make request.
// Parses results of requests.
class Request {
public:
Request();
virtual ~Request();
virtual void OnGCDAPIFlowError(Status status) = 0;
virtual void OnGCDAPIFlowComplete(const base::DictionaryValue& value) = 0;
virtual GURL GetURL() = 0;
virtual std::string GetOAuthScope() = 0;
virtual net::URLFetcher::RequestType GetRequestType();
virtual std::vector<std::string> GetExtraRequestHeaders() = 0;
// If there is no data, set upload_type and upload_data to ""
virtual void GetUploadData(std::string* upload_type,
std::string* upload_data);
private:
DISALLOW_COPY_AND_ASSIGN(Request);
};
GCDApiFlow();
virtual ~GCDApiFlow();
static scoped_ptr<GCDApiFlow> Create(
net::URLRequestContextGetter* request_context,
OAuth2TokenService* token_service,
const std::string& account_id);
virtual void Start(scoped_ptr<Request> request) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(GCDApiFlow);
};
class GCDApiFlowRequest : public GCDApiFlow::Request {
public:
GCDApiFlowRequest();
~GCDApiFlowRequest() override;
// GCDApiFlowRequest implementation
std::string GetOAuthScope() override;
std::vector<std::string> GetExtraRequestHeaders() override;
private:
DISALLOW_COPY_AND_ASSIGN(GCDApiFlowRequest);
};
class CloudPrintApiFlowRequest : public GCDApiFlow::Request {
public:
CloudPrintApiFlowRequest();
~CloudPrintApiFlowRequest() override;
// GCDApiFlowRequest implementation
std::string GetOAuthScope() override;
std::vector<std::string> GetExtraRequestHeaders() override;
private:
DISALLOW_COPY_AND_ASSIGN(CloudPrintApiFlowRequest);
};
} // namespace local_discovery
#endif // CHROME_BROWSER_LOCAL_DISCOVERY_GCD_API_FLOW_H_
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