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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NET_HTTP_HTTP_AUTH_CACHE_H_ | 5 #ifndef NET_HTTP_HTTP_AUTH_CACHE_H_ |
6 #define NET_HTTP_HTTP_AUTH_CACHE_H_ | 6 #define NET_HTTP_HTTP_AUTH_CACHE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <list> | 9 #include <list> |
10 #include <string> | 10 #include <string> |
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21 // HttpAuthCache::Entry, which holds: | 21 // HttpAuthCache::Entry, which holds: |
22 // - the origin server {protocol scheme, host, port} | 22 // - the origin server {protocol scheme, host, port} |
23 // - the last identity used (username/password) | 23 // - the last identity used (username/password) |
24 // - the last auth handler used (contains realm and authentication scheme) | 24 // - the last auth handler used (contains realm and authentication scheme) |
25 // - the list of paths which used this realm | 25 // - the list of paths which used this realm |
26 // Entries can be looked up by either (origin, realm, scheme) or (origin, path). | 26 // Entries can be looked up by either (origin, realm, scheme) or (origin, path). |
27 class HttpAuthCache { | 27 class HttpAuthCache { |
28 public: | 28 public: |
29 class Entry; | 29 class Entry; |
30 | 30 |
| 31 // Prevent unbounded memory growth. These are safeguards for abuse; it is |
| 32 // not expected that the limits will be reached in ordinary usage. |
| 33 // This also defines the worst-case lookup times (which grow linearly |
| 34 // with number of elements in the cache). |
| 35 enum { kMaxNumPathsPerRealmEntry = 10 }; |
| 36 enum { kMaxNumRealmEntries = 10 }; |
| 37 |
31 HttpAuthCache(); | 38 HttpAuthCache(); |
32 ~HttpAuthCache(); | 39 ~HttpAuthCache(); |
33 | 40 |
34 // Find the realm entry on server |origin| for realm |realm| and | 41 // Find the realm entry on server |origin| for realm |realm| and |
35 // scheme |scheme|. | 42 // scheme |scheme|. |
36 // |origin| - the {scheme, host, port} of the server. | 43 // |origin| - the {scheme, host, port} of the server. |
37 // |realm| - case sensitive realm string. | 44 // |realm| - case sensitive realm string. |
38 // |scheme| - case sensitive authentication scheme, should be lower-case. | 45 // |scheme| - case sensitive authentication scheme, should be lower-case. |
39 // returns - the matched entry or NULL. | 46 // returns - the matched entry or NULL. |
40 Entry* Lookup(const GURL& origin, const std::string& realm, | 47 Entry* Lookup(const GURL& origin, const std::string& realm, |
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86 // Updates a stale digest entry on server |origin| for realm |realm| and | 93 // Updates a stale digest entry on server |origin| for realm |realm| and |
87 // scheme |scheme|. The cached auth challenge is replaced with | 94 // scheme |scheme|. The cached auth challenge is replaced with |
88 // |auth_challenge| and the nonce count is reset. | 95 // |auth_challenge| and the nonce count is reset. |
89 // |UpdateStaleChallenge()| returns true if a matching entry exists in the | 96 // |UpdateStaleChallenge()| returns true if a matching entry exists in the |
90 // cache, false otherwise. | 97 // cache, false otherwise. |
91 bool UpdateStaleChallenge(const GURL& origin, | 98 bool UpdateStaleChallenge(const GURL& origin, |
92 const std::string& realm, | 99 const std::string& realm, |
93 const std::string& scheme, | 100 const std::string& scheme, |
94 const std::string& auth_challenge); | 101 const std::string& auth_challenge); |
95 | 102 |
96 // Prevent unbounded memory growth. These are safeguards for abuse; it is | |
97 // not expected that the limits will be reached in ordinary usage. | |
98 // This also defines the worst-case lookup times (which grow linearly | |
99 // with number of elements in the cache). | |
100 enum { kMaxNumPathsPerRealmEntry = 10 }; | |
101 enum { kMaxNumRealmEntries = 10 }; | |
102 | |
103 private: | 103 private: |
104 typedef std::list<Entry> EntryList; | 104 typedef std::list<Entry> EntryList; |
105 EntryList entries_; | 105 EntryList entries_; |
106 }; | 106 }; |
107 | 107 |
108 // An authentication realm entry. | 108 // An authentication realm entry. |
109 class HttpAuthCache::Entry { | 109 class HttpAuthCache::Entry { |
110 public: | 110 public: |
| 111 ~Entry(); |
| 112 |
111 const GURL& origin() const { | 113 const GURL& origin() const { |
112 return origin_; | 114 return origin_; |
113 } | 115 } |
114 | 116 |
115 // The case-sensitive realm string of the challenge. | 117 // The case-sensitive realm string of the challenge. |
116 const std::string realm() const { | 118 const std::string realm() const { |
117 return realm_; | 119 return realm_; |
118 } | 120 } |
119 | 121 |
120 // The authentication scheme string of the challenge | 122 // The authentication scheme string of the challenge |
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136 const string16 password() const { | 138 const string16 password() const { |
137 return password_; | 139 return password_; |
138 } | 140 } |
139 | 141 |
140 int IncrementNonceCount() { | 142 int IncrementNonceCount() { |
141 return ++nonce_count_; | 143 return ++nonce_count_; |
142 } | 144 } |
143 | 145 |
144 void UpdateStaleChallenge(const std::string& auth_challenge); | 146 void UpdateStaleChallenge(const std::string& auth_challenge); |
145 | 147 |
146 ~Entry(); | |
147 | |
148 private: | 148 private: |
149 friend class HttpAuthCache; | 149 friend class HttpAuthCache; |
150 FRIEND_TEST_ALL_PREFIXES(HttpAuthCacheTest, AddPath); | 150 FRIEND_TEST_ALL_PREFIXES(HttpAuthCacheTest, AddPath); |
151 FRIEND_TEST_ALL_PREFIXES(HttpAuthCacheTest, AddToExistingEntry); | 151 FRIEND_TEST_ALL_PREFIXES(HttpAuthCacheTest, AddToExistingEntry); |
152 | 152 |
| 153 typedef std::list<std::string> PathList; |
| 154 |
153 Entry(); | 155 Entry(); |
154 | 156 |
155 // Adds a path defining the realm's protection space. If the path is | 157 // Adds a path defining the realm's protection space. If the path is |
156 // already contained in the protection space, is a no-op. | 158 // already contained in the protection space, is a no-op. |
157 void AddPath(const std::string& path); | 159 void AddPath(const std::string& path); |
158 | 160 |
159 // Returns true if |dir| is contained within the realm's protection space. | 161 // Returns true if |dir| is contained within the realm's protection space. |
160 bool HasEnclosingPath(const std::string& dir); | 162 bool HasEnclosingPath(const std::string& dir); |
161 | 163 |
162 // |origin_| contains the {scheme, host, port} of the server. | 164 // |origin_| contains the {scheme, host, port} of the server. |
163 GURL origin_; | 165 GURL origin_; |
164 std::string realm_; | 166 std::string realm_; |
165 std::string scheme_; | 167 std::string scheme_; |
166 | 168 |
167 // Identity. | 169 // Identity. |
168 std::string auth_challenge_; | 170 std::string auth_challenge_; |
169 string16 username_; | 171 string16 username_; |
170 string16 password_; | 172 string16 password_; |
171 | 173 |
172 int nonce_count_; | 174 int nonce_count_; |
173 | 175 |
174 // List of paths that define the realm's protection space. | 176 // List of paths that define the realm's protection space. |
175 typedef std::list<std::string> PathList; | |
176 PathList paths_; | 177 PathList paths_; |
177 }; | 178 }; |
178 | 179 |
179 } // namespace net | 180 } // namespace net |
180 | 181 |
181 #endif // NET_HTTP_HTTP_AUTH_CACHE_H_ | 182 #endif // NET_HTTP_HTTP_AUTH_CACHE_H_ |
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