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// Copyright (c) 2006-2009 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_SOCKET_SSL_CLIENT_SOCKET_H_
#define NET_SOCKET_SSL_CLIENT_SOCKET_H_
#include <string>
#include "net/socket/client_socket.h"
namespace net {
class SSLCertRequestInfo;
class SSLInfo;
// A client socket that uses SSL as the transport layer.
//
// NOTE: The SSL handshake occurs within the Connect method after a TCP
// connection is established. If a SSL error occurs during the handshake,
// Connect will fail.
//
class SSLClientSocket : public ClientSocket {
public:
SSLClientSocket() : was_npn_negotiated_(false) {
}
// Next Protocol Negotiation (NPN) allows a TLS client and server to come to
// an agreement about the application level protocol to speak over a
// connection.
enum NextProtoStatus {
kNextProtoUnsupported = 0, // The server doesn't support NPN.
kNextProtoNegotiated = 1, // We agreed on a protocol.
kNextProtoNoOverlap = 2, // No protocols in common. We requested
// the first protocol in our list.
};
// Next Protocol Negotiation (NPN), if successful, results in agreement on an
// application-level string that specifies the application level protocol to
// use over the TLS connection. NextProto enumerates the application level
// protocols that we recognise.
enum NextProto {
kProtoUnknown = 0,
kProtoHTTP11 = 1,
kProtoSPDY1 = 2,
};
// Gets the SSL connection information of the socket.
virtual void GetSSLInfo(SSLInfo* ssl_info) = 0;
// Gets the SSL CertificateRequest info of the socket after Connect failed
// with ERR_SSL_CLIENT_AUTH_CERT_NEEDED.
virtual void GetSSLCertRequestInfo(
SSLCertRequestInfo* cert_request_info) = 0;
// Get the application level protocol that we negotiated with the server.
// *proto is set to the resulting protocol (n.b. that the string may have
// embedded NULs).
// kNextProtoUnsupported: *proto is cleared.
// kNextProtoNegotiated: *proto is set to the negotiated protocol.
// kNextProtoNoOverlap: *proto is set to the first protocol in the
// supported list.
virtual NextProtoStatus GetNextProto(std::string* proto) = 0;
static NextProto NextProtoFromString(const std::string& proto_string) {
if (proto_string == "http1.1" || proto_string == "http/1.1") {
return kProtoHTTP11;
} else if (proto_string == "spdy" || proto_string == "spdy/1") {
return kProtoSPDY1;
} else {
return kProtoUnknown;
}
}
virtual bool wasNpnNegotiated() const {
return was_npn_negotiated_;
}
virtual bool setWasNpnNegotiated(bool negotiated) {
return was_npn_negotiated_ = negotiated;
}
private:
// True if NPN was responded to, independent of selecting SPDY or HTTP.
bool was_npn_negotiated_;
};
} // namespace net
#endif // NET_SOCKET_SSL_CLIENT_SOCKET_H_
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