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1 // Copyright (c) 2011 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_FTP_FTP_AUTH_CACHE_H_ | |
6 #define NET_FTP_FTP_AUTH_CACHE_H_ | |
7 | |
8 #include <list> | |
9 | |
10 #include "net/base/auth.h" | |
11 #include "net/base/net_export.h" | |
12 #include "url/gurl.h" | |
13 | |
14 namespace net { | |
15 | |
16 // The FtpAuthCache class is a simple cache structure to store authentication | |
17 // information for ftp. Provides lookup, insertion, and deletion of entries. | |
18 // The parameter for doing lookups, insertions, and deletions is a GURL of the | |
19 // server's address (not a full URL with path, since FTP auth isn't per path). | |
20 // For example: | |
21 // GURL("ftp://myserver") -- OK (implied port of 21) | |
22 // GURL("ftp://myserver:21") -- OK | |
23 // GURL("ftp://myserver/PATH") -- WRONG, paths not allowed | |
24 class NET_EXPORT_PRIVATE FtpAuthCache { | |
25 public: | |
26 // Maximum number of entries we allow in the cache. | |
27 static const size_t kMaxEntries; | |
28 | |
29 struct Entry { | |
30 Entry(const GURL& origin, const AuthCredentials& credentials); | |
31 ~Entry(); | |
32 | |
33 GURL origin; | |
34 AuthCredentials credentials; | |
35 }; | |
36 | |
37 FtpAuthCache(); | |
38 ~FtpAuthCache(); | |
39 | |
40 // Return Entry corresponding to given |origin| or NULL if not found. | |
41 Entry* Lookup(const GURL& origin); | |
42 | |
43 // Add an entry for |origin| to the cache using |credentials|. If there is | |
44 // already an entry for |origin|, it will be overwritten. | |
45 void Add(const GURL& origin, const AuthCredentials& credentials); | |
46 | |
47 // Remove the entry for |origin| from the cache, if one exists and matches | |
48 // |credentials|. | |
49 void Remove(const GURL& origin, const AuthCredentials& credentials); | |
50 | |
51 private: | |
52 typedef std::list<Entry> EntryList; | |
53 | |
54 // Internal representation of cache, an STL list. This makes lookups O(n), | |
55 // but we expect n to be very low. | |
56 EntryList entries_; | |
57 }; | |
58 | |
59 } // namespace net | |
60 | |
61 #endif // NET_FTP_FTP_AUTH_CACHE_H_ | |
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