1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
6#define CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
7
8#include <string>
9
10#include "base/memory/scoped_ptr.h"
11#include "base/memory/weak_ptr.h"
12#include "net/url_request/url_fetcher_delegate.h"
13#include "url/gurl.h"
14
15namespace base {
16class Value;
17}
18
19namespace net {
20class URLFetcher;
21class URLRequestContextGetter;
22}
23
24namespace extensions {
25
26class WebstoreDataFetcherDelegate;
27
28// WebstoreDataFetcher fetches web store data and parses it into a
29// DictionaryValue.
30class WebstoreDataFetcher : public base::SupportsWeakPtr<WebstoreDataFetcher>,
31                            public net::URLFetcherDelegate {
32 public:
33  WebstoreDataFetcher(WebstoreDataFetcherDelegate* delegate,
34                      net::URLRequestContextGetter* request_context,
35                      const GURL& referrer_url,
36                      const std::string webstore_item_id);
37  virtual ~WebstoreDataFetcher();
38
39  void Start();
40
41  void set_max_auto_retries(int max_retries) {
42    max_auto_retries_ = max_retries;
43  }
44
45 private:
46  void OnJsonParseSuccess(scoped_ptr<base::Value> parsed_json);
47  void OnJsonParseFailure(const std::string& error);
48
49  // net::URLFetcherDelegate overrides:
50  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
51
52  WebstoreDataFetcherDelegate* delegate_;
53  net::URLRequestContextGetter* request_context_;
54  GURL referrer_url_;
55  std::string id_;
56
57  // For fetching webstore JSON data.
58  scoped_ptr<net::URLFetcher> webstore_data_url_fetcher_;
59
60  // Maximum auto retry times on server 5xx error or ERR_NETWORK_CHANGED.
61  // Default is 0 which means to use the URLFetcher default behavior.
62  int max_auto_retries_;
63
64  DISALLOW_COPY_AND_ASSIGN(WebstoreDataFetcher);
65};
66
67}  // namespace extensions
68
69#endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
70