chrome/browser/extensions/webstore_data_fetcher.h

   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
  15 namespace base {
  16 class Value;
  17 }
  18
  19 namespace net {
  20 class URLFetcher;
  21 class URLRequestContextGetter;
  22 }
  23
  24 namespace extensions {
  25
  26 class WebstoreDataFetcherDelegate;
  27
  28 // WebstoreDataFetcher fetches web store data and parses it into a
  29 // DictionaryValue.
  30 class 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   ~WebstoreDataFetcher() override;
  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   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_