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// Copyright (c) 2011 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_BASE_AUTH_H__
#define NET_BASE_AUTH_H__
#include <string>
#include "base/memory/ref_counted.h"
#include "base/strings/string16.h"
#include "net/base/host_port_pair.h"
#include "net/base/net_export.h"
namespace net {
// Holds info about an authentication challenge that we may want to display
// to the user.
class NET_EXPORT AuthChallengeInfo :
public base::RefCountedThreadSafe<AuthChallengeInfo> {
public:
AuthChallengeInfo();
// Determines whether two AuthChallengeInfo's are equivalent.
bool Equals(const AuthChallengeInfo& other) const;
// Whether this came from a server or a proxy.
bool is_proxy;
// The service issuing the challenge.
HostPortPair challenger;
// The authentication scheme used, such as "basic" or "digest". If the
// |source| is FTP_SERVER, this is an empty string. The encoding is ASCII.
std::string scheme;
// The realm of the challenge. May be empty. The encoding is UTF-8.
std::string realm;
private:
friend class base::RefCountedThreadSafe<AuthChallengeInfo>;
~AuthChallengeInfo();
};
// Authentication Credentials for an authentication credentials.
class NET_EXPORT AuthCredentials {
public:
AuthCredentials();
AuthCredentials(const base::string16& username,
const base::string16& password);
~AuthCredentials();
// Set the |username| and |password|.
void Set(const base::string16& username, const base::string16& password);
// Determines if |this| is equivalent to |other|.
bool Equals(const AuthCredentials& other) const;
// Returns true if all credentials are empty.
bool Empty() const;
// Overwrites the password memory to prevent it from being read if
// it's paged out to disk.
void Zap();
const base::string16& username() const { return username_; }
const base::string16& password() const { return password_; }
private:
// The username to provide, possibly empty. This should be ASCII only to
// minimize compatibility problems, but arbitrary UTF-16 strings are allowed
// and will be attempted.
base::string16 username_;
// The password to provide, possibly empty. This should be ASCII only to
// minimize compatibility problems, but arbitrary UTF-16 strings are allowed
// and will be attempted.
base::string16 password_;
// Intentionally allowing the implicit copy constructor and assignment
// operators.
};
// Authentication structures
enum AuthState {
AUTH_STATE_DONT_NEED_AUTH,
AUTH_STATE_NEED_AUTH,
AUTH_STATE_HAVE_AUTH,
AUTH_STATE_CANCELED
};
class AuthData : public base::RefCountedThreadSafe<AuthData> {
public:
AuthState state; // whether we need, have, or gave up on authentication.
AuthCredentials credentials; // The credentials to use for auth.
// We wouldn't instantiate this class if we didn't need authentication.
AuthData();
private:
friend class base::RefCountedThreadSafe<AuthData>;
~AuthData();
};
} // namespace net
#endif // NET_BASE_AUTH_H__
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