269fb4bc90
Create a copy of talk/xmpp and talk/p2p under webrtc/libjingle/xmpp and webrtc/p2p. Also makes libjingle use those version instead of the one in the talk folder. BUG=3379 Review URL: https://webrtc-codereview.appspot.com/26999004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7549 4adac7df-926f-26a2-2b94-8c16560cd09d
117 lines
4.1 KiB
C++
117 lines
4.1 KiB
C++
/*
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* libjingle
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* Copyright 2004--2005, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "webrtc/p2p/base/stunserver.h"
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#include "webrtc/base/bytebuffer.h"
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#include "webrtc/base/logging.h"
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namespace cricket {
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StunServer::StunServer(rtc::AsyncUDPSocket* socket) : socket_(socket) {
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socket_->SignalReadPacket.connect(this, &StunServer::OnPacket);
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}
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StunServer::~StunServer() {
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socket_->SignalReadPacket.disconnect(this);
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}
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void StunServer::OnPacket(
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rtc::AsyncPacketSocket* socket, const char* buf, size_t size,
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const rtc::SocketAddress& remote_addr,
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const rtc::PacketTime& packet_time) {
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// Parse the STUN message; eat any messages that fail to parse.
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rtc::ByteBuffer bbuf(buf, size);
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StunMessage msg;
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if (!msg.Read(&bbuf)) {
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return;
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}
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// TODO: If unknown non-optional (<= 0x7fff) attributes are found, send a
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// 420 "Unknown Attribute" response.
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// Send the message to the appropriate handler function.
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switch (msg.type()) {
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case STUN_BINDING_REQUEST:
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OnBindingRequest(&msg, remote_addr);
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break;
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default:
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SendErrorResponse(msg, remote_addr, 600, "Operation Not Supported");
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}
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}
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void StunServer::OnBindingRequest(
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StunMessage* msg, const rtc::SocketAddress& remote_addr) {
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StunMessage response;
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GetStunBindReqponse(msg, remote_addr, &response);
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SendResponse(response, remote_addr);
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}
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void StunServer::SendErrorResponse(
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const StunMessage& msg, const rtc::SocketAddress& addr,
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int error_code, const char* error_desc) {
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StunMessage err_msg;
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err_msg.SetType(GetStunErrorResponseType(msg.type()));
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err_msg.SetTransactionID(msg.transaction_id());
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StunErrorCodeAttribute* err_code = StunAttribute::CreateErrorCode();
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err_code->SetCode(error_code);
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err_code->SetReason(error_desc);
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err_msg.AddAttribute(err_code);
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SendResponse(err_msg, addr);
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}
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void StunServer::SendResponse(
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const StunMessage& msg, const rtc::SocketAddress& addr) {
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rtc::ByteBuffer buf;
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msg.Write(&buf);
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rtc::PacketOptions options;
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if (socket_->SendTo(buf.Data(), buf.Length(), addr, options) < 0)
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LOG_ERR(LS_ERROR) << "sendto";
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}
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void StunServer::GetStunBindReqponse(StunMessage* request,
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const rtc::SocketAddress& remote_addr,
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StunMessage* response) const {
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response->SetType(STUN_BINDING_RESPONSE);
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response->SetTransactionID(request->transaction_id());
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// Tell the user the address that we received their request from.
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StunAddressAttribute* mapped_addr;
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if (!request->IsLegacy()) {
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mapped_addr = StunAttribute::CreateAddress(STUN_ATTR_MAPPED_ADDRESS);
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} else {
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mapped_addr = StunAttribute::CreateXorAddress(STUN_ATTR_XOR_MAPPED_ADDRESS);
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}
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mapped_addr->SetAddress(remote_addr);
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response->AddAttribute(mapped_addr);
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}
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} // namespace cricket
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