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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "ConnectionHandler.h"
#include "Connection.h"
#include "qpid/framing/ClientInvoker.h"
#include "qpid/framing/ServerInvoker.h"
#include "qpid/framing/enum.h"
#include "qpid/log/Statement.h"
#include "qpid/Url.h"
#include "AclModule.h"
#include "qmf/org/apache/qpid/broker/EventClientConnectFail.h"
using namespace qpid;
using namespace qpid::broker;
using namespace qpid::framing;
namespace _qmf = qmf::org::apache::qpid::broker;
namespace
{
const std::string ANONYMOUS = "ANONYMOUS";
const std::string PLAIN = "PLAIN";
const std::string en_US = "en_US";
const std::string QPID_FED_LINK = "qpid.fed_link";
const std::string QPID_FED_TAG = "qpid.federation_tag";
}
void ConnectionHandler::close(connection::CloseCode code, const string& text)
{
handler->client.close(code, text);
}
void ConnectionHandler::handle(framing::AMQFrame& frame)
{
AMQMethodBody* method=frame.getBody()->getMethod();
try{
bool handled = false;
if (handler->serverMode) {
handled = invoke(static_cast<AMQP_ServerOperations::ConnectionHandler&>(*handler.get()), *method);
} else {
handled = invoke(static_cast<AMQP_ClientOperations::ConnectionHandler&>(*handler.get()), *method);
}
if (!handled) {
handler->connection.getChannel(frame.getChannel()).in(frame);
}
}catch(ConnectionException& e){
handler->client.close(e.code, e.what());
}catch(std::exception& e){
handler->client.close(541/*internal error*/, e.what());
}
}
ConnectionHandler::ConnectionHandler(Connection& connection, bool isClient) : handler(new Handler(connection, isClient)) {}
ConnectionHandler::Handler::Handler(Connection& c, bool isClient) :
client(c.getOutput()), server(c.getOutput()),
connection(c), serverMode(!isClient), acl(0)
{
if (serverMode) {
acl = connection.getBroker().getAcl();
FieldTable properties;
Array mechanisms(0x95);
properties.setString(QPID_FED_TAG, connection.getBroker().getFederationTag());
authenticator = SaslAuthenticator::createAuthenticator(c);
authenticator->getMechanisms(mechanisms);
Array locales(0x95);
boost::shared_ptr<FieldValue> l(new Str16Value(en_US));
locales.add(l);
client.start(properties, mechanisms, locales);
}
}
ConnectionHandler::Handler::~Handler() {}
void ConnectionHandler::Handler::startOk(const framing::FieldTable& clientProperties,
const string& mechanism,
const string& response,
const string& /*locale*/)
{
try {
authenticator->start(mechanism, response);
} catch (std::exception& /*e*/) {
management::ManagementAgent* agent = connection.getAgent();
if (agent) {
string error;
string uid;
authenticator->getError(error);
authenticator->getUid(uid);
agent->raiseEvent(_qmf::EventClientConnectFail(connection.getMgmtId(), uid, error));
}
throw;
}
connection.setFederationLink(clientProperties.get(QPID_FED_LINK));
connection.setFederationPeerTag(clientProperties.getAsString(QPID_FED_TAG));
if (connection.isFederationLink()) {
if (acl && !acl->authorise(connection.getUserId(),acl::ACT_CREATE,acl::OBJ_LINK,"")){
client.close(framing::connection::CLOSE_CODE_CONNECTION_FORCED,"ACL denied creating a federation link");
return;
}
QPID_LOG(info, "Connection is a federation link");
}
}
void ConnectionHandler::Handler::secureOk(const string& response)
{
try {
authenticator->step(response);
} catch (std::exception& /*e*/) {
management::ManagementAgent* agent = connection.getAgent();
if (agent) {
string error;
string uid;
authenticator->getError(error);
authenticator->getUid(uid);
agent->raiseEvent(_qmf::EventClientConnectFail(connection.getMgmtId(), uid, error));
}
throw;
}
}
void ConnectionHandler::Handler::tuneOk(uint16_t /*channelmax*/,
uint16_t framemax, uint16_t heartbeat)
{
connection.setFrameMax(framemax);
connection.setHeartbeat(heartbeat);
}
void ConnectionHandler::Handler::open(const string& /*virtualHost*/,
const framing::Array& /*capabilities*/, bool /*insist*/)
{
std::vector<Url> urls = connection.broker.getKnownBrokers();
framing::Array array(0x95); // str16 array
for (std::vector<Url>::iterator i = urls.begin(); i < urls.end(); ++i)
array.add(boost::shared_ptr<Str16Value>(new Str16Value(i->str())));
client.openOk(array);
}
void ConnectionHandler::Handler::close(uint16_t replyCode, const string& replyText)
{
if (replyCode != 200) {
QPID_LOG(warning, "Client closed connection with " << replyCode << ": " << replyText);
}
if (replyCode == framing::connection::CLOSE_CODE_CONNECTION_FORCED)
connection.notifyConnectionForced(replyText);
client.closeOk();
connection.getOutput().close();
}
void ConnectionHandler::Handler::closeOk(){
connection.getOutput().close();
}
void ConnectionHandler::Handler::start(const FieldTable& serverProperties,
const framing::Array& /*mechanisms*/,
const framing::Array& /*locales*/)
{
string mechanism = connection.getAuthMechanism();
string response = connection.getAuthCredentials();
connection.setFederationPeerTag(serverProperties.getAsString(QPID_FED_TAG));
FieldTable ft;
ft.setInt(QPID_FED_LINK,1);
ft.setString(QPID_FED_TAG, connection.getBroker().getFederationTag());
server.startOk(ft, mechanism, response, en_US);
}
void ConnectionHandler::Handler::secure(const string& /*challenge*/)
{
server.secureOk("");
}
void ConnectionHandler::Handler::tune(uint16_t channelMax,
uint16_t frameMax,
uint16_t /*heartbeatMin*/,
uint16_t heartbeatMax)
{
connection.setFrameMax(frameMax);
connection.setHeartbeat(heartbeatMax);
server.tuneOk(channelMax, frameMax, heartbeatMax);
server.open("/", Array(), true);
}
void ConnectionHandler::Handler::openOk(const framing::Array& /*knownHosts*/)
{
}
void ConnectionHandler::Handler::redirect(const string& /*host*/, const framing::Array& /*knownHosts*/)
{
}
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