mirror of https://github.com/saitohirga/WSJT-X.git
663 lines
24 KiB
C++
663 lines
24 KiB
C++
#include "MessageClient.hpp"
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#include <stdexcept>
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#include <vector>
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#include <algorithm>
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#include <limits>
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#include <QUdpSocket>
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#include <QNetworkInterface>
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#include <QHostInfo>
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#include <QTimer>
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#include <QQueue>
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#include <QByteArray>
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#include <QColor>
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#include <QDebug>
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#include "NetworkMessage.hpp"
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#include "qt_helpers.hpp"
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#include "pimpl_impl.hpp"
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#include "moc_MessageClient.cpp"
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// some trace macros
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#if WSJT_TRACE_UDP
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#define TRACE_UDP(MSG) qDebug () << QString {"MessageClient::%1:"}.arg (__func__) << MSG
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#else
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#define TRACE_UDP(MSG)
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#endif
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class MessageClient::impl
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: public QUdpSocket
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{
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Q_OBJECT;
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public:
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impl (QString const& id, QString const& version, QString const& revision,
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port_type server_port, int TTL, MessageClient * self)
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: self_ {self}
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, enabled_ {false}
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, id_ {id}
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, version_ {version}
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, revision_ {revision}
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, dns_lookup_id_ {-1}
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, server_port_ {server_port}
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, TTL_ {TTL}
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, schema_ {2} // use 2 prior to negotiation not 1 which is broken
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, heartbeat_timer_ {new QTimer {this}}
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{
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connect (heartbeat_timer_, &QTimer::timeout, this, &impl::heartbeat);
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connect (this, &QIODevice::readyRead, this, &impl::pending_datagrams);
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heartbeat_timer_->start (NetworkMessage::pulse * 1000);
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}
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~impl ()
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{
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closedown ();
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if (dns_lookup_id_ != -1)
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{
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QHostInfo::abortHostLookup (dns_lookup_id_);
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}
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}
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enum StreamStatus {Fail, Short, OK};
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void set_server (QString const& server_name, QStringList const& network_interface_names);
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Q_SLOT void host_info_results (QHostInfo);
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void start ();
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void parse_message (QByteArray const&);
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void pending_datagrams ();
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void heartbeat ();
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void closedown ();
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StreamStatus check_status (QDataStream const&) const;
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void send_message (QByteArray const&, bool queue_if_pending = true, bool allow_duplicates = false);
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void send_message (QDataStream const& out, QByteArray const& message, bool queue_if_pending = true, bool allow_duplicates = false)
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{
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if (OK == check_status (out))
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{
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send_message (message, queue_if_pending, allow_duplicates);
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}
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else
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{
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Q_EMIT self_->error ("Error creating UDP message");
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}
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}
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MessageClient * self_;
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bool enabled_;
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QString id_;
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QString version_;
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QString revision_;
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int dns_lookup_id_;
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QHostAddress server_;
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port_type server_port_;
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int TTL_;
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std::vector<QNetworkInterface> network_interfaces_;
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quint32 schema_;
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QTimer * heartbeat_timer_;
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std::vector<QHostAddress> blocked_addresses_;
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// hold messages sent before host lookup completes asynchronously
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QQueue<QByteArray> pending_messages_;
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QByteArray last_message_;
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};
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#include "MessageClient.moc"
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void MessageClient::impl::set_server (QString const& server_name, QStringList const& network_interface_names)
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{
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// qDebug () << "MessageClient server:" << server_name << "port:" << server_port_ << "interfaces:" << network_interface_names;
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server_.setAddress (server_name);
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network_interfaces_.clear ();
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for (auto const& net_if_name : network_interface_names)
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{
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network_interfaces_.push_back (QNetworkInterface::interfaceFromName (net_if_name));
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}
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if (server_.isNull () && server_name.size ()) // DNS lookup required
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{
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// queue a host address lookup
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#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
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dns_lookup_id_ = QHostInfo::lookupHost (server_name, this, &MessageClient::impl::host_info_results);
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#else
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dns_lookup_id_ = QHostInfo::lookupHost (server_name, this, SLOT (host_info_results (QHostInfo)));
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#endif
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}
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else
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{
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start ();
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}
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}
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void MessageClient::impl::host_info_results (QHostInfo host_info)
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{
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if (host_info.lookupId () != dns_lookup_id_) return;
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dns_lookup_id_ = -1;
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if (QHostInfo::NoError != host_info.error ())
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{
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Q_EMIT self_->error ("UDP server DNS lookup failed: " + host_info.errorString ());
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}
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else
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{
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auto const& server_addresses = host_info.addresses ();
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if (server_addresses.size ())
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{
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server_ = server_addresses[0];
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}
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}
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start ();
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}
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void MessageClient::impl::start ()
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{
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if (server_.isNull ())
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{
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Q_EMIT self_->close ();
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pending_messages_.clear (); // discard
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return;
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}
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if (is_broadcast_address (server_))
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{
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Q_EMIT self_->error ("IPv4 broadcast not supported, please specify the loop-back address, a server host address, or multicast group address");
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pending_messages_.clear (); // discard
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return;
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}
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if (blocked_addresses_.end () != std::find (blocked_addresses_.begin (), blocked_addresses_.end (), server_))
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{
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Q_EMIT self_->error ("UDP server blocked, please try another");
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pending_messages_.clear (); // discard
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return;
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}
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TRACE_UDP ("Trying server:" << server_.toString ());
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QHostAddress interface_addr {IPv6Protocol == server_.protocol () ? QHostAddress::AnyIPv6 : QHostAddress::AnyIPv4};
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if (localAddress () != interface_addr)
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{
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if (UnconnectedState != state () || state ())
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{
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close ();
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}
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// bind to an ephemeral port on the selected interface and set
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// up for sending datagrams
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bind (interface_addr);
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// qDebug () << "Bound to UDP port:" << localPort () << "on:" << localAddress ();
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// set multicast TTL to limit scope when sending to multicast
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// group addresses
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setSocketOption (MulticastTtlOption, TTL_);
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}
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// send initial heartbeat which allows schema negotiation
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heartbeat ();
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// clear any backlog
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while (pending_messages_.size ())
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{
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send_message (pending_messages_.dequeue (), true, false);
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}
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}
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void MessageClient::impl::pending_datagrams ()
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{
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while (hasPendingDatagrams ())
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{
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QByteArray datagram;
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datagram.resize (pendingDatagramSize ());
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QHostAddress sender_address;
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port_type sender_port;
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if (0 <= readDatagram (datagram.data (), datagram.size (), &sender_address, &sender_port))
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{
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TRACE_UDP ("message received from:" << sender_address << "port:" << sender_port);
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parse_message (datagram);
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}
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}
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}
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void MessageClient::impl::parse_message (QByteArray const& msg)
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{
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try
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{
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//
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// message format is described in NetworkMessage.hpp
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//
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NetworkMessage::Reader in {msg};
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if (OK == check_status (in))
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{
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if (schema_ < in.schema ()) // one time record of server's
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// negotiated schema
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{
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schema_ = in.schema ();
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}
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if (!enabled_)
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{
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TRACE_UDP ("message processing disabled for id:" << in.id ());
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return;
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}
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//
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// message format is described in NetworkMessage.hpp
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//
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switch (in.type ())
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{
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case NetworkMessage::Reply:
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{
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// unpack message
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QTime time;
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qint32 snr;
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float delta_time;
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quint32 delta_frequency;
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QByteArray mode;
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QByteArray message;
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bool low_confidence {false};
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quint8 modifiers {0};
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in >> time >> snr >> delta_time >> delta_frequency >> mode >> message
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>> low_confidence >> modifiers;
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TRACE_UDP ("Reply: time:" << time << "snr:" << snr << "dt:" << delta_time << "df:" << delta_frequency << "mode:" << mode << "message:" << message << "low confidence:" << low_confidence << "modifiers: 0x"
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#if QT_VERSION >= QT_VERSION_CHECK (5, 15, 0)
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<< Qt::hex
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#else
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<< hex
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#endif
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<< modifiers);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->reply (time, snr, delta_time, delta_frequency
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, QString::fromUtf8 (mode), QString::fromUtf8 (message)
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, low_confidence, modifiers);
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}
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}
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break;
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case NetworkMessage::Clear:
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{
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quint8 window {0};
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in >> window;
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TRACE_UDP ("Clear window:" << window);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->clear_decodes (window);
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}
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}
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break;
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case NetworkMessage::Close:
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TRACE_UDP ("Close");
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if (check_status (in) != Fail)
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{
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last_message_.clear ();
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Q_EMIT self_->close ();
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}
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break;
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case NetworkMessage::Replay:
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TRACE_UDP ("Replay");
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if (check_status (in) != Fail)
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{
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last_message_.clear ();
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Q_EMIT self_->replay ();
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}
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break;
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case NetworkMessage::HaltTx:
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{
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bool auto_only {false};
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in >> auto_only;
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TRACE_UDP ("Halt Tx auto_only:" << auto_only);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->halt_tx (auto_only);
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}
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}
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break;
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case NetworkMessage::FreeText:
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{
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QByteArray message;
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bool send {true};
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in >> message >> send;
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TRACE_UDP ("FreeText message:" << message << "send:" << send);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->free_text (QString::fromUtf8 (message), send);
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}
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}
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break;
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case NetworkMessage::Location:
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{
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QByteArray location;
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in >> location;
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TRACE_UDP ("Location location:" << location);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->location (QString::fromUtf8 (location));
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}
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}
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break;
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case NetworkMessage::HighlightCallsign:
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{
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QByteArray call;
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QColor bg; // default invalid color
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QColor fg; // default invalid color
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bool last_only {false};
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in >> call >> bg >> fg >> last_only;
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TRACE_UDP ("HighlightCallsign call:" << call << "bg:" << bg << "fg:" << fg << "last only:" << last_only);
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if (check_status (in) != Fail && call.size ())
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{
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Q_EMIT self_->highlight_callsign (QString::fromUtf8 (call), bg, fg, last_only);
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}
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}
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break;
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case NetworkMessage::SwitchConfiguration:
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{
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QByteArray configuration_name;
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in >> configuration_name;
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TRACE_UDP ("Switch Configuration name:" << configuration_name);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->switch_configuration (QString::fromUtf8 (configuration_name));
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}
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}
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break;
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case NetworkMessage::Configure:
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{
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QByteArray mode;
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quint32 frequency_tolerance;
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QByteArray submode;
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bool fast_mode {false};
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quint32 tr_period {std::numeric_limits<quint32>::max ()};
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quint32 rx_df {std::numeric_limits<quint32>::max ()};
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QByteArray dx_call;
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QByteArray dx_grid;
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bool generate_messages {false};
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in >> mode >> frequency_tolerance >> submode >> fast_mode >> tr_period >> rx_df
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>> dx_call >> dx_grid >> generate_messages;
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TRACE_UDP ("Configure mode:" << mode << "frequency tolerance:" << frequency_tolerance << "submode:" << submode << "fast mode:" << fast_mode << "T/R period:" << tr_period << "rx df:" << rx_df << "dx call:" << dx_call << "dx grid:" << dx_grid << "generate messages:" << generate_messages);
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if (check_status (in) != Fail)
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{
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Q_EMIT self_->configure (QString::fromUtf8 (mode), frequency_tolerance
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, QString::fromUtf8 (submode), fast_mode, tr_period, rx_df
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, QString::fromUtf8 (dx_call), QString::fromUtf8 (dx_grid)
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, generate_messages);
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}
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}
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break;
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default:
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// Ignore
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//
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// Note that although server heartbeat messages are not
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// parsed here they are still partially parsed in the
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// message reader class to negotiate the maximum schema
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// number being used on the network.
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if (NetworkMessage::Heartbeat != in.type ())
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{
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TRACE_UDP ("ignoring message type:" << in.type ());
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}
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break;
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}
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}
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else
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{
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TRACE_UDP ("ignored message for id:" << in.id ());
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}
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}
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catch (std::exception const& e)
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{
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Q_EMIT self_->error (QString {"MessageClient exception: %1"}.arg (e.what ()));
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}
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catch (...)
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{
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Q_EMIT self_->error ("Unexpected exception in MessageClient");
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}
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}
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void MessageClient::impl::heartbeat ()
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{
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if (server_port_ && !server_.isNull ())
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{
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QByteArray message;
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NetworkMessage::Builder out {&message, NetworkMessage::Heartbeat, id_, schema_};
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out << NetworkMessage::Builder::schema_number // maximum schema number accepted
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<< version_.toUtf8 () << revision_.toUtf8 ();
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TRACE_UDP ("schema:" << schema_ << "max schema:" << NetworkMessage::Builder::schema_number << "version:" << version_ << "revision:" << revision_);
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send_message (out, message, false, true);
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}
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}
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void MessageClient::impl::closedown ()
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{
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if (server_port_ && !server_.isNull ())
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{
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QByteArray message;
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NetworkMessage::Builder out {&message, NetworkMessage::Close, id_, schema_};
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TRACE_UDP ("");
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send_message (out, message, false);
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}
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}
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void MessageClient::impl::send_message (QByteArray const& message, bool queue_if_pending, bool allow_duplicates)
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{
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if (server_port_)
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{
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if (!server_.isNull ())
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{
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if (allow_duplicates || message != last_message_) // avoid duplicates
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{
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if (is_multicast_address (server_))
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{
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// send datagram on each selected network interface
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std::for_each (network_interfaces_.begin (), network_interfaces_.end ()
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, [&] (QNetworkInterface const& net_if) {
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setMulticastInterface (net_if);
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// qDebug () << "Multicast UDP datagram sent to:" << server_ << "port:" << server_port_ << "on:" << multicastInterface ().humanReadableName ();
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writeDatagram (message, server_, server_port_);
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});
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}
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else
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{
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// qDebug () << "Unicast UDP datagram sent to:" << server_ << "port:" << server_port_;
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writeDatagram (message, server_, server_port_);
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}
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last_message_ = message;
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}
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}
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else if (queue_if_pending)
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{
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pending_messages_.enqueue (message);
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}
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}
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}
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auto MessageClient::impl::check_status (QDataStream const& stream) const -> StreamStatus
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{
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auto stat = stream.status ();
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StreamStatus result {Fail};
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switch (stat)
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{
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case QDataStream::ReadPastEnd:
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result = Short;
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break;
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case QDataStream::ReadCorruptData:
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Q_EMIT self_->error ("Message serialization error: read corrupt data");
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break;
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case QDataStream::WriteFailed:
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Q_EMIT self_->error ("Message serialization error: write error");
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break;
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default:
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result = OK;
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break;
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}
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return result;
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}
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MessageClient::MessageClient (QString const& id, QString const& version, QString const& revision,
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QString const& server_name, port_type server_port,
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QStringList const& network_interface_names,
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int TTL, QObject * self)
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: QObject {self}
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, m_ {id, version, revision, server_port, TTL, this}
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{
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connect (&*m_
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#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
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, static_cast<void (impl::*) (impl::SocketError)> (&impl::error), [this] (impl::SocketError e)
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#else
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, &impl::errorOccurred, [this] (impl::SocketError e)
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#endif
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{
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#if defined (Q_OS_WIN)
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if (e != impl::NetworkError // take this out when Qt 5.5 stops doing this spuriously
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&& e != impl::ConnectionRefusedError) // not interested in this with UDP socket
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{
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#else
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{
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Q_UNUSED (e);
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#endif
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Q_EMIT error (m_->errorString ());
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}
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});
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m_->set_server (server_name, network_interface_names);
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}
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QHostAddress MessageClient::server_address () const
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{
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return m_->server_;
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}
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auto MessageClient::server_port () const -> port_type
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{
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return m_->server_port_;
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}
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void MessageClient::set_server (QString const& server_name, QStringList const& network_interface_names)
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{
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m_->set_server (server_name, network_interface_names);
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}
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void MessageClient::set_server_port (port_type server_port)
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{
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m_->server_port_ = server_port;
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}
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void MessageClient::set_TTL (int TTL)
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{
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m_->TTL_ = TTL;
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m_->setSocketOption (QAbstractSocket::MulticastTtlOption, m_->TTL_);
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}
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void MessageClient::enable (bool flag)
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{
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m_->enabled_ = flag;
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}
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void MessageClient::status_update (Frequency f, QString const& mode, QString const& dx_call
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, QString const& report, QString const& tx_mode
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, bool tx_enabled, bool transmitting, bool decoding
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, quint32 rx_df, quint32 tx_df, QString const& de_call
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, QString const& de_grid, QString const& dx_grid
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, bool watchdog_timeout, QString const& sub_mode
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, bool fast_mode, quint8 special_op_mode
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, quint32 frequency_tolerance, quint32 tr_period
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, QString const& configuration_name
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, QString const& tx_message)
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|
{
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if (m_->server_port_ && !m_->server_.isNull ())
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|
{
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|
QByteArray message;
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NetworkMessage::Builder out {&message, NetworkMessage::Status, m_->id_, m_->schema_};
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out << f << mode.toUtf8 () << dx_call.toUtf8 () << report.toUtf8 () << tx_mode.toUtf8 ()
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<< tx_enabled << transmitting << decoding << rx_df << tx_df << de_call.toUtf8 ()
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<< de_grid.toUtf8 () << dx_grid.toUtf8 () << watchdog_timeout << sub_mode.toUtf8 ()
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<< fast_mode << special_op_mode << frequency_tolerance << tr_period << configuration_name.toUtf8 ()
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<< tx_message.toUtf8 ();
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|
TRACE_UDP ("frequency:" << f << "mode:" << mode << "DX:" << dx_call << "report:" << report << "Tx mode:" << tx_mode << "tx_enabled:" << tx_enabled << "Tx:" << transmitting << "decoding:" << decoding << "Rx df:" << rx_df << "Tx df:" << tx_df << "DE:" << de_call << "DE grid:" << de_grid << "DX grid:" << dx_grid << "w/d t/o:" << watchdog_timeout << "sub_mode:" << sub_mode << "fast mode:" << fast_mode << "spec op mode:" << special_op_mode << "frequency tolerance:" << frequency_tolerance << "T/R period:" << tr_period << "configuration name:" << configuration_name << "Tx message:" << tx_message);
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|
m_->send_message (out, message);
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|
}
|
|
}
|
|
|
|
void MessageClient::decode (bool is_new, QTime time, qint32 snr, float delta_time, quint32 delta_frequency
|
|
, QString const& mode, QString const& message_text, bool low_confidence
|
|
, bool off_air)
|
|
{
|
|
if (m_->server_port_ && !m_->server_.isNull ())
|
|
{
|
|
QByteArray message;
|
|
NetworkMessage::Builder out {&message, NetworkMessage::Decode, m_->id_, m_->schema_};
|
|
out << is_new << time << snr << delta_time << delta_frequency << mode.toUtf8 ()
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|
<< message_text.toUtf8 () << low_confidence << off_air;
|
|
TRACE_UDP ("new" << is_new << "time:" << time << "snr:" << snr << "dt:" << delta_time << "df:" << delta_frequency << "mode:" << mode << "text:" << message_text << "low conf:" << low_confidence << "off air:" << off_air);
|
|
m_->send_message (out, message);
|
|
}
|
|
}
|
|
|
|
void MessageClient::WSPR_decode (bool is_new, QTime time, qint32 snr, float delta_time, Frequency frequency
|
|
, qint32 drift, QString const& callsign, QString const& grid, qint32 power
|
|
, bool off_air)
|
|
{
|
|
if (m_->server_port_ && !m_->server_.isNull ())
|
|
{
|
|
QByteArray message;
|
|
NetworkMessage::Builder out {&message, NetworkMessage::WSPRDecode, m_->id_, m_->schema_};
|
|
out << is_new << time << snr << delta_time << frequency << drift << callsign.toUtf8 ()
|
|
<< grid.toUtf8 () << power << off_air;
|
|
TRACE_UDP ("new:" << is_new << "time:" << time << "snr:" << snr << "dt:" << delta_time << "frequency:" << frequency << "drift:" << drift << "call:" << callsign << "grid:" << grid << "pwr:" << power << "off air:" << off_air);
|
|
m_->send_message (out, message);
|
|
}
|
|
}
|
|
|
|
void MessageClient::decodes_cleared ()
|
|
{
|
|
if (m_->server_port_ && !m_->server_.isNull ())
|
|
{
|
|
QByteArray message;
|
|
NetworkMessage::Builder out {&message, NetworkMessage::Clear, m_->id_, m_->schema_};
|
|
TRACE_UDP ("");
|
|
m_->send_message (out, message);
|
|
}
|
|
}
|
|
|
|
void MessageClient::qso_logged (QDateTime time_off, QString const& dx_call, QString const& dx_grid
|
|
, Frequency dial_frequency, QString const& mode, QString const& report_sent
|
|
, QString const& report_received, QString const& tx_power
|
|
, QString const& comments, QString const& name, QDateTime time_on
|
|
, QString const& operator_call, QString const& my_call
|
|
, QString const& my_grid, QString const& exchange_sent
|
|
, QString const& exchange_rcvd, QString const& propmode)
|
|
{
|
|
if (m_->server_port_ && !m_->server_.isNull ())
|
|
{
|
|
QByteArray message;
|
|
NetworkMessage::Builder out {&message, NetworkMessage::QSOLogged, m_->id_, m_->schema_};
|
|
out << time_off << dx_call.toUtf8 () << dx_grid.toUtf8 () << dial_frequency << mode.toUtf8 ()
|
|
<< report_sent.toUtf8 () << report_received.toUtf8 () << tx_power.toUtf8 () << comments.toUtf8 ()
|
|
<< name.toUtf8 () << time_on << operator_call.toUtf8 () << my_call.toUtf8 () << my_grid.toUtf8 ()
|
|
<< exchange_sent.toUtf8 () << exchange_rcvd.toUtf8 () << propmode.toUtf8 ();
|
|
TRACE_UDP ("time off:" << time_off << "DX:" << dx_call << "DX grid:" << dx_grid << "dial:" << dial_frequency << "mode:" << mode << "sent:" << report_sent << "rcvd:" << report_received << "pwr:" << tx_power << "comments:" << comments << "name:" << name << "time on:" << time_on << "op:" << operator_call << "DE:" << my_call << "DE grid:" << my_grid << "exch sent:" << exchange_sent << "exch rcvd:" << exchange_rcvd << "prop_mode:" << propmode);
|
|
m_->send_message (out, message);
|
|
}
|
|
}
|
|
|
|
void MessageClient::logged_ADIF (QByteArray const& ADIF_record)
|
|
{
|
|
if (m_->server_port_ && !m_->server_.isNull ())
|
|
{
|
|
QByteArray message;
|
|
NetworkMessage::Builder out {&message, NetworkMessage::LoggedADIF, m_->id_, m_->schema_};
|
|
QByteArray ADIF {"\n<adif_ver:5>3.1.0\n<programid:6>WSJT-X\n<EOH>\n" + ADIF_record + " <EOR>"};
|
|
out << ADIF;
|
|
TRACE_UDP ("ADIF:" << ADIF);
|
|
m_->send_message (out, message);
|
|
}
|
|
}
|