remoting/test/host_list_fetcher.h

   1 // Copyright 2015 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 REMOTING_TEST_HOST_LIST_FETCHER_H_
   6 #define REMOTING_TEST_HOST_LIST_FETCHER_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "net/url_request/url_fetcher_delegate.h"
  15 #include "remoting/test/host_info.h"
  16
  17 namespace net {
  18 class UrlFetcher;
  19 }
  20 namespace remoting {
  21 class URLRequestContextGetter;
  22 }
  23
  24 namespace remoting {
  25 namespace test {
  26
  27 // Used by the HostlistFetcher to make HTTP requests and also by the
  28 // unittests for this class to set fake response data for these URLs.
  29 const char kHostListProdRequestUrl[] = "https://www.googleapis.com/"
  30     "chromoting/v1/@me/hosts";
  31
  32 // Requests a host list from the directory service for an access token.
  33 // Destroying the RemoteHostInfoFetcher while a request is outstanding
  34 // will cancel the request. It is safe to delete the fetcher from within a
  35 // completion callback.  Must be used from a thread running a message loop.
  36 // The public method is virtual to allow for mocking and fakes.
  37 class HostListFetcher : public net::URLFetcherDelegate {
  38  public:
  39   HostListFetcher();
  40   ~HostListFetcher() override;
  41
  42   // Supplied by the client for each hostlist request and returns a valid,
  43   // initialized Hostlist object on success.
  44   typedef base::Callback<void(const std::vector<HostInfo>& hostlist)>
  45     HostlistCallback;
  46
  47   // Makes a service call to retrieve a hostlist. The
  48   // callback will be called once the HTTP request has completed.
  49   virtual void RetrieveHostlist(const std::string& access_token,
  50                                 const HostlistCallback& callback);
  51
  52  private:
  53   // Processes the response from the directory service.
  54   bool ProcessResponse(std::vector<HostInfo>* hostlist);
  55
  56   // net::URLFetcherDelegate interface.
  57   void OnURLFetchComplete(const net::URLFetcher* source) override;
  58
  59   // Holds the URLFetcher for the Host List request.
  60   scoped_ptr<net::URLFetcher> request_;
  61
  62   // Provides application-specific context for the network request.
  63   scoped_refptr<remoting::URLRequestContextGetter> request_context_getter_;
  64
  65   // Caller-supplied callback used to return hostlist on success.
  66   HostlistCallback hostlist_callback_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(HostListFetcher);
  69 };
  70
  71 }  // namespace test
  72 }  // namespace remoting
  73
  74 #endif  // REMOTING_TEST_HOST_LIST_FETCHER_H_