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1 // Copyright 2014 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 COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_FETCHER_H_ | |
6 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_FETCHER_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "base/macros.h" | |
11 #include "base/memory/ref_counted.h" | |
12 #include "components/password_manager/core/browser/affiliation_fetcher_delegate.
h" | |
13 #include "components/password_manager/core/browser/affiliation_utils.h" | |
14 #include "net/url_request/url_fetcher_delegate.h" | |
15 | |
16 class GURL; | |
17 | |
18 namespace net { | |
19 class URLRequestContextGetter; | |
20 } // namespace net | |
21 | |
22 namespace password_manager { | |
23 | |
24 class TestAffiliationFetcherFactory; | |
25 | |
26 // Fetches authoritative information regarding which facets are affiliated with | |
27 // each other, that is, which facets belong to the same logical application. | |
28 // See affiliation_utils.h for a definition of what this means. | |
29 // | |
30 // An instance is good for exactly one fetch, and may be used from any thread | |
31 // that runs a message loop (i.e. not a worker pool thread). | |
32 class AffiliationFetcher : net::URLFetcherDelegate { | |
33 public: | |
34 ~AffiliationFetcher() override; | |
35 | |
36 // Constructs a fetcher to retrieve affiliations for each facet in |facet_ids| | |
37 // using the specified |request_context_getter|, and will provide the results | |
38 // to the |delegate| on the same thread that creates the instance. | |
39 static AffiliationFetcher* Create( | |
40 net::URLRequestContextGetter* request_context_getter, | |
41 const std::vector<FacetURI>& facet_uris, | |
42 AffiliationFetcherDelegate* delegate); | |
43 | |
44 // Sets the |factory| to be used by Create() to construct AffiliationFetcher | |
45 // instances. To be used only for testing. | |
46 // | |
47 // The caller must ensure that the |factory| outlives all potential Create() | |
48 // calls. The caller may pass in NULL to resume using the default factory. | |
49 static void SetFactoryForTesting(TestAffiliationFetcherFactory* factory); | |
50 | |
51 // Actually starts the request, and will call the delegate with the results on | |
52 // the same thread when done. If |this| is destroyed before completion, the | |
53 // in-flight request is cancelled, and the delegate will not be called. | |
54 // Further details: | |
55 // * No cookies are sent/saved with the request. | |
56 // * In case of network/server errors, the request will not be retried. | |
57 // * Results are guaranteed to be always fresh and will never be cached. | |
58 virtual void StartRequest(); | |
59 | |
60 const std::vector<FacetURI>& requested_facet_uris() const { | |
61 return requested_facet_uris_; | |
62 } | |
63 | |
64 AffiliationFetcherDelegate* delegate() const { return delegate_; } | |
65 | |
66 protected: | |
67 AffiliationFetcher(net::URLRequestContextGetter* request_context_getter, | |
68 const std::vector<FacetURI>& facet_uris, | |
69 AffiliationFetcherDelegate* delegate); | |
70 | |
71 private: | |
72 // Builds the URL for the Affiliation API's lookup method. | |
73 GURL BuildQueryURL() const; | |
74 | |
75 // Prepares and returns the serialized protocol buffer message that will be | |
76 // the payload of the POST request. | |
77 std::string PreparePayload() const; | |
78 | |
79 // Parses and validates the response protocol buffer message for a list of | |
80 // equivalence classes, stores them into |result| and returns true on success. | |
81 // Returns false if the response was gravely ill-formed or self-inconsistent. | |
82 // Unknown kinds of facet URIs and new protocol buffer fields will be ignored. | |
83 bool ParseResponse(AffiliationFetcherDelegate::Result* result) const; | |
84 | |
85 // net::URLFetcherDelegate: | |
86 void OnURLFetchComplete(const net::URLFetcher* source) override; | |
87 | |
88 const scoped_refptr<net::URLRequestContextGetter> request_context_getter_; | |
89 const std::vector<FacetURI> requested_facet_uris_; | |
90 AffiliationFetcherDelegate* const delegate_; | |
91 | |
92 std::unique_ptr<net::URLFetcher> fetcher_; | |
93 | |
94 DISALLOW_COPY_AND_ASSIGN(AffiliationFetcher); | |
95 }; | |
96 | |
97 } // namespace password_manager | |
98 | |
99 #endif // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_AFFILIATION_FETCHER_H_ | |
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