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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 #include "net/ftp/ftp_auth_cache.h"
6 
7 #include "base/logging.h"
8 #include "url/gurl.h"
9 
10 namespace net {
11 
12 // static
13 const size_t FtpAuthCache::kMaxEntries = 10;
14 
Entry(const GURL & origin,const AuthCredentials & credentials)15 FtpAuthCache::Entry::Entry(const GURL& origin,
16                            const AuthCredentials& credentials)
17     : origin(origin),
18       credentials(credentials) {
19 }
20 
~Entry()21 FtpAuthCache::Entry::~Entry() {}
22 
FtpAuthCache()23 FtpAuthCache::FtpAuthCache() {}
24 
~FtpAuthCache()25 FtpAuthCache::~FtpAuthCache() {}
26 
Lookup(const GURL & origin)27 FtpAuthCache::Entry* FtpAuthCache::Lookup(const GURL& origin) {
28   for (EntryList::iterator it = entries_.begin(); it != entries_.end(); ++it) {
29     if (it->origin == origin)
30       return &(*it);
31   }
32   return NULL;
33 }
34 
Add(const GURL & origin,const AuthCredentials & credentials)35 void FtpAuthCache::Add(const GURL& origin, const AuthCredentials& credentials) {
36   DCHECK(origin.SchemeIs("ftp"));
37   DCHECK_EQ(origin.GetOrigin(), origin);
38 
39   Entry* entry = Lookup(origin);
40   if (entry) {
41     entry->credentials = credentials;
42   } else {
43     entries_.push_front(Entry(origin, credentials));
44 
45     // Prevent unbound memory growth of the cache.
46     if (entries_.size() > kMaxEntries)
47       entries_.pop_back();
48   }
49 }
50 
Remove(const GURL & origin,const AuthCredentials & credentials)51 void FtpAuthCache::Remove(const GURL& origin,
52                           const AuthCredentials& credentials) {
53   for (EntryList::iterator it = entries_.begin(); it != entries_.end(); ++it) {
54     if (it->origin == origin && it->credentials.Equals(credentials)) {
55       entries_.erase(it);
56       DCHECK(!Lookup(origin));
57       return;
58     }
59   }
60 }
61 
62 }  // namespace net
63