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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_FTP_FTP_AUTH_CACHE_H_
#define NET_FTP_FTP_AUTH_CACHE_H_
#include <list>
#include "net/base/auth.h"
#include "googleurl/src/gurl.h"
namespace net {
// The FtpAuthCache class is a simple cache structure to store authentication
// information for ftp. Provides lookup, insertion, and deletion of entries.
// The parameter for doing lookups, insertions, and deletions is a GURL of the
// server's address (not a full URL with path, since FTP auth isn't per path).
// For example:
// GURL("ftp://myserver") -- OK (implied port of 21)
// GURL("ftp://myserver:21") -- OK
// GURL("ftp://myserver/PATH") -- WRONG, paths not allowed
class FtpAuthCache {
public:
FtpAuthCache() {}
~FtpAuthCache() {}
// Maximum number of entries we allow in the cache.
static const size_t kMaxEntries;
// Check if we have authentication data for ftp server at |origin|.
// Returns the address of corresponding AuthData object (if found) or NULL
// (if not found).
AuthData* Lookup(const GURL& origin);
// Add an entry for |origin| to the cache. If there is already an
// entry for |origin|, it will be overwritten. Both parameters are IN only.
void Add(const GURL& origin, AuthData* auth_data);
// Remove the entry for |origin| from the cache, if one exists.
void Remove(const GURL& origin);
private:
struct Entry {
Entry(const GURL& origin, AuthData* auth_data)
: origin(origin),
auth_data(auth_data) {
}
const GURL origin;
scoped_refptr<AuthData> auth_data;
};
typedef std::list<Entry> EntryList;
// Return Entry corresponding to given |origin| or NULL if not found.
Entry* LookupByOrigin(const GURL& origin);
// Internal representation of cache, an STL list. This makes lookups O(n),
// but we expect n to be very low.
EntryList entries_;
};
} // namespace net
#endif // NET_FTP_FTP_AUTH_CACHE_H_
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