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Side by Side Diff: net/quic/quic_in_memory_cache.h

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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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 NET_QUIC_QUIC_IN_MEMORY_CACHE_H_
6 #define NET_QUIC_QUIC_IN_MEMORY_CACHE_H_
7
8 #include <string>
9
10 #include "base/containers/hash_tables.h"
11 #include "base/files/file_util.h"
12 #include "base/memory/singleton.h"
13 #include "base/strings/string_piece.h"
14 #include "net/http/http_response_headers.h"
15
16 template <typename T> struct DefaultSingletonTraits;
17 class GURL;
18
19 namespace net {
20
21 extern base::FilePath::StringType g_quic_in_memory_cache_dir;
22
23 namespace test {
24 class QuicInMemoryCachePeer;
25 } // namespace
26
27 class QuicServer;
28
29 // In-memory cache for HTTP responses.
30 // Reads from disk cache generated by:
31 // `wget -p --save_headers <url>`
32 class QuicInMemoryCache {
33 public:
34 enum SpecialResponseType {
35 REGULAR_RESPONSE, // Send the headers and body like a server should.
36 CLOSE_CONNECTION, // Close the connection (sending the close packet).
37 IGNORE_REQUEST, // Do nothing, expect the client to time out.
38 };
39
40 // Container for response header/body pairs.
41 class Response {
42 public:
43 Response();
44 ~Response();
45
46 SpecialResponseType response_type() const { return response_type_; }
47 const HttpResponseHeaders& headers() const { return *headers_.get(); }
48 const base::StringPiece body() const { return base::StringPiece(body_); }
49
50 private:
51 friend class QuicInMemoryCache;
52
53 void set_headers(scoped_refptr<HttpResponseHeaders> headers) {
54 headers_ = headers;
55 }
56 void set_body(base::StringPiece body) {
57 body.CopyToString(&body_);
58 }
59
60 SpecialResponseType response_type_;
61 scoped_refptr<HttpResponseHeaders> headers_;
62 std::string body_;
63
64 DISALLOW_COPY_AND_ASSIGN(Response);
65 };
66
67 // Returns the singleton instance of the cache.
68 static QuicInMemoryCache* GetInstance();
69
70 // Retrieve a response from this cache for a given request.
71 // If no appropriate response exists, nullptr is returned.
72 // Currently, responses are selected based on request URI only.
73 const Response* GetResponse(const GURL& url) const;
74
75 // Adds a simple response to the cache. The response headers will
76 // only contain the "content-length" header with the length of |body|.
77 void AddSimpleResponse(base::StringPiece path,
78 base::StringPiece version,
79 base::StringPiece response_code,
80 base::StringPiece response_detail,
81 base::StringPiece body);
82
83 // Add a response to the cache.
84 void AddResponse(const GURL& url,
85 scoped_refptr<HttpResponseHeaders> response_headers,
86 base::StringPiece response_body);
87
88 // Simulate a special behavior at a particular path.
89 void AddSpecialResponse(base::StringPiece path,
90 SpecialResponseType response_type);
91
92 private:
93 typedef base::hash_map<std::string, Response*> ResponseMap;
94 friend struct DefaultSingletonTraits<QuicInMemoryCache>;
95 friend class test::QuicInMemoryCachePeer;
96
97 QuicInMemoryCache();
98 ~QuicInMemoryCache();
99
100 void ResetForTests();
101
102 void Initialize();
103
104 std::string GetKey(const GURL& url) const;
105
106 // Cached responses.
107 ResponseMap responses_;
108
109 DISALLOW_COPY_AND_ASSIGN(QuicInMemoryCache);
110 };
111
112 } // namespace net
113
114 #endif // NET_QUIC_QUIC_IN_MEMORY_CACHE_H_
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