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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 COMPONENTS_CERTIFICATE_TRANSPARENCY_LOG_PROOF_FETCHER_H_ | |
6 #define COMPONENTS_CERTIFICATE_TRANSPARENCY_LOG_PROOF_FETCHER_H_ | |
7 | |
8 #include <map> | |
9 #include <string> | |
10 | |
11 #include "base/memory/ref_counted.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "net/url_request/url_request.h" | |
14 #include "url/gurl.h" | |
15 | |
16 namespace base { | |
17 class Value; | |
18 } // namespace base | |
19 | |
20 namespace net { | |
21 | |
22 class URLRequestContext; | |
23 | |
24 namespace ct { | |
25 struct SignedTreeHead; | |
26 } // namespace ct | |
27 | |
28 } // namespace net | |
29 | |
30 namespace certificate_transparency { | |
31 | |
32 // Fetches STHs and consistency proofs from Certificate Transparency logs | |
33 // using the URLRequestContext provided during the instance construction. | |
34 class LogProofFetcher : public net::URLRequest::Delegate { | |
35 public: | |
36 using FetchSTHCallback = | |
mmenke
2015/07/17 17:57:47
Google style discourages use of uncommon abbreviat
Eran Messeri
2015/07/29 15:16:59
Done, renamed to SignedTreeHeadFetchedCallback.
Al
| |
37 base::Callback<void(const std::string&, const net::ct::SignedTreeHead&)>; | |
38 using FetchFailedCallback = base::Callback<void(const std::string&, int)>; | |
mmenke
2015/07/17 17:57:47
I believe the callback arguments should be named
mmenke
2015/07/17 17:57:48
Callbacks should be documented.
mmenke
2015/07/17 17:57:48
Need to include callback header.
Eran Messeri
2015/07/29 15:16:59
Done.
Eran Messeri
2015/07/29 15:16:59
Done.
Eran Messeri
2015/07/29 15:16:59
Done.
| |
39 explicit LogProofFetcher(net::URLRequestContext* request_context); | |
mmenke
2015/07/17 17:57:48
nit: Add blank line above constructor.
Eran Messeri
2015/07/29 15:16:59
Done.
| |
40 ~LogProofFetcher() override; | |
41 | |
42 // Fetch the latest Signed Tree Head from the log identified by |log_id| | |
43 // from |log_url|. | |
44 void FetchSTH(const GURL& log_url, | |
45 const std::string& log_id, | |
46 FetchSTHCallback fetched_cb, | |
47 FetchFailedCallback failed_cb); | |
mmenke
2015/07/17 17:57:47
Write out callback.
mmenke
2015/07/17 17:57:47
Callbacks are generally passed via const ref (Even
Eran Messeri
2015/07/29 15:16:59
Done.
Eran Messeri
2015/07/29 15:16:59
Done.
| |
48 | |
49 // net::URLRequest::Delegate | |
50 void OnResponseStarted(net::URLRequest* request) override; | |
51 void OnReadCompleted(net::URLRequest* request, int bytes_read) override; | |
52 | |
53 private: | |
54 struct FetchState; | |
55 | |
56 bool CheckReadStatus(net::URLRequest* request, FetchState* params); | |
57 void KickOffARead(net::URLRequest* request, FetchState* params); | |
58 | |
59 // Performs post-report cleanup. | |
60 void RequestComplete(net::URLRequest* request); | |
61 // Returns the FetchState associated with the request. The caller takes | |
62 // ownership of the returned value in case the params should be used before | |
63 // being deleted. | |
64 scoped_ptr<FetchState> CleanupRequest(net::URLRequest* request); | |
65 | |
66 // Actually create the request | |
67 scoped_ptr<net::URLRequest> CreateURLRequest(const GURL& fetch_sth_url); | |
68 | |
69 // Callbacks for parsing the STH's JSON by the SafeJsonParser | |
70 void OnSTHJsonParseSuccess(FetchState params, | |
71 scoped_ptr<base::Value> parsed_json); | |
72 void OnSTHJsonParseError(FetchState params, const std::string& error); | |
73 | |
74 net::URLRequestContext* const request_context_; | |
75 | |
76 // Owns the contained requests, as well as FetchState. | |
77 std::map<net::URLRequest*, FetchState*> inflight_requests_; | |
78 | |
79 base::WeakPtrFactory<LogProofFetcher> weak_factory_; | |
mmenke
2015/07/17 17:57:47
Include weak_ptr.h
Eran Messeri
2015/07/29 15:16:59
Done.
| |
80 | |
81 DISALLOW_COPY_AND_ASSIGN(LogProofFetcher); | |
mmenke
2015/07/17 17:57:47
Include base/macros.h for DISALLOW_COPY_AND_ASSIGN
Eran Messeri
2015/07/29 15:16:59
Done.
| |
82 }; | |
83 | |
84 } // namespace certificate_transparency | |
85 | |
86 #endif // COMPONENTS_CERTIFICATE_TRANSPARENCY_LOG_PROOF_FETCHER_H_ | |
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