blob: 38e1f0febcafbab609d0cb57c9e53b97353b6e7c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
// Copyright 2015 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_INTERESTS_INTERESTS_FETCHER_H_
#define CHROME_BROWSER_INTERESTS_INTERESTS_FETCHER_H_
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/profiles/profile.h"
#include "components/signin/core/browser/signin_manager.h"
#include "google_apis/gaia/oauth2_token_service.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_fetcher_delegate.h"
// Class to fetch topics of interest for a user as computed by Google Now. Each
// interest is a tuple of a name, a thumbnail URL and a relevance score. This
// class is one-shot. To retrieve interests multiple times use multiple
// instances of this class.
//
// Authentication is done via OAuth2 and requires the
// https://www.googleapis.com/auth/googlenow scope.
//
// If the InterestsFetcher is deleted before the callback is called then the
// request will be aborted. It is up to the user to ensure that both the
// Profile and the OAuth2TokenService outlive the InterestsFetcher.
//
// The server required for this feature is not publicly available yet.
class InterestsFetcher : public net::URLFetcherDelegate,
public OAuth2TokenService::Consumer {
public:
struct Interest {
Interest(const std::string& name, const GURL& image_url, double relevance);
~Interest();
bool operator==(const Interest& interest) const;
std::string name;
GURL image_url;
double relevance;
};
using InterestsCallback =
base::Callback<void(scoped_ptr<std::vector<Interest>>)>;
InterestsFetcher(OAuth2TokenService* oauth2_token_service,
const std::string& account_id,
net::URLRequestContextGetter* context);
~InterestsFetcher() override;
static scoped_ptr<InterestsFetcher> CreateFromProfile(Profile* profile);
void FetchInterests(const InterestsCallback& callback);
private:
// net::URLFetcherDelegate implementation.
void OnURLFetchComplete(const net::URLFetcher* source) override;
// OAuth2TokenService::Consumer implementation.
void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
const std::string& access_token,
const base::Time& experiation_time) override;
void OnGetTokenFailure(const OAuth2TokenService::Request* request,
const GoogleServiceAuthError& error) override;
void StartOAuth2Request();
OAuth2TokenService::ScopeSet GetApiScopes();
scoped_ptr<net::URLFetcher> CreateFetcher();
// Parse the json response.
scoped_ptr<std::vector<Interest>>
ExtractInterests(const std::string& response);
InterestsCallback callback_;
scoped_ptr<net::URLFetcher> fetcher_;
std::string account_id_;
net::URLRequestContextGetter* url_request_context_;
bool access_token_expired_;
std::string access_token_;
scoped_ptr<OAuth2TokenService::Request> oauth_request_;
OAuth2TokenService* token_service_;
DISALLOW_COPY_AND_ASSIGN(InterestsFetcher);
};
#endif // CHROME_BROWSER_INTERESTS_INTERESTS_FETCHER_H_
|
