From 0243cbe0170a768f8f8998c6f7f234869c8c77e6 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sat, 30 Apr 2022 10:06:28 +0200
Subject: Add 4-byte size arg to socket payload. Add qookie-cast client (server
 really) with receiving socket.

---
 Makefile                  |  6 ++++
 ctor.cc                   | 27 ++++++++++++++++++
 src/client.cc             |  4 +++
 src/qookie-cast-client.cc | 70 +++++++++++++++++++++++++++++++++++++++++++++++
 src/qookie-cast-client.h  | 34 +++++++++++++++++++++++
 5 files changed, 141 insertions(+)
 create mode 100644 Makefile
 create mode 100644 src/qookie-cast-client.cc
 create mode 100644 src/qookie-cast-client.h

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..7689431
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+CXXFLAGS=-I/usr/include/qt4/QtWidgets -I/usr/include/qt4/QtCore/ -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtNetwork -I/usr/include/qt4 -fPIC -I/usr/include/qt4/QtWebKit
+LIBS=-L/usr/lib/qt4 -lQtCore -lQtNetwork -lQtGui -lQtWebKit
+all: qookie-cast-client
+
+qookie-cast-client: src/qookie-cast-client.cc
+	g++ qookie-cast-client.cc moc_qookie-cast-client.cc $(CXXFLAGS) $(LIBS) -o qookie-cast-client
diff --git a/ctor.cc b/ctor.cc
index fa30fdc..2354499 100644
--- a/ctor.cc
+++ b/ctor.cc
@@ -40,6 +40,33 @@ BuildConfigurations myConfigs()
 					"-lsqlite3",
 				}
 			},
+		},
+		{
+			.target = "qookie-cast-client",  // output filename
+			.sources = {
+				"src/qookie-cast-client.cc",
+				"src/moc_qookie-cast-client.cc",
+			},
+			.flags = {
+				.cxxflags = {
+					"-I/usr/include/qt5",
+					"-I/usr/include/qt5/QtCore",
+					"-I/usr/include/qt5/QtGui",
+					"-I/usr/include/qt5/QtWidgets",
+					"-I/usr/include/qt5/QtNetwork",
+					"-I/usr/include/qt5/QtWebKit",
+					"-fPIC",
+					"-Wall", "-Werror", "-Wextra",// "-Wconversion",
+					"-g",
+				},
+				.ldflags = {
+					"-lQt5Core",
+					"-lQt5Network",
+					"-lQt5Gui",
+					"-lQt5Widgets",
+//					"-lQt5WebKit",
+				}
+			},
 		}
 	};
 }
diff --git a/src/client.cc b/src/client.cc
index bcc7958..4d1bb7f 100644
--- a/src/client.cc
+++ b/src/client.cc
@@ -1,5 +1,7 @@
 #include "client.h"
 
+#include <cstdint>
+
 #include <QTcpSocket>
 #include <QTimer>
 
@@ -33,6 +35,8 @@ bool Client::writeData(const QByteArray& data)
 		return false;
 	}
 
+	std::uint32_t size = data.size();
+	socket->write((char*)&size, sizeof(std::uint32_t));
 	socket->write(data);
 	return socket->waitForBytesWritten(100); // wait at most 100ms
 }
diff --git a/src/qookie-cast-client.cc b/src/qookie-cast-client.cc
new file mode 100644
index 0000000..93e04c9
--- /dev/null
+++ b/src/qookie-cast-client.cc
@@ -0,0 +1,70 @@
+#include "qookie-cast-client.h"
+
+#include <cstdint>
+
+#include <QApplication>
+
+Server::Server(WebView& webview, QObject *parent)
+	: QObject(parent)
+	, webview(webview)
+{
+	server = new QTcpServer(this);
+	connect(server, SIGNAL(newConnection()), SLOT(newConnection()));
+	server->listen(QHostAddress::Any, 1024);
+}
+
+void Server::newConnection()
+{
+	size = -1;
+	html = "";
+
+	while (server->hasPendingConnections())
+	{
+		QTcpSocket *socket = server->nextPendingConnection();
+		connect(socket, SIGNAL(readyRead()), SLOT(readyRead()));
+		connect(socket, SIGNAL(disconnected()), SLOT(disconnected()));
+	}
+}
+
+void Server::disconnected()
+{
+	QTcpSocket *socket = static_cast<QTcpSocket*>(sender());
+	socket->deleteLater();
+}
+
+void Server::readyRead()
+{
+	QTcpSocket *socket = static_cast<QTcpSocket*>(sender());
+
+	if(size < 0)
+	{
+		std::uint32_t sz;
+		socket->read((char*)&sz, sizeof(std::uint32_t));
+		size = sz;
+	}
+
+	while (socket->bytesAvailable() > 0)
+	{
+		auto data = socket->readAll();
+		html.append(QString::fromUtf8(data));
+		size -= data.size();
+	}
+
+	if(size <= 0)
+	{
+		webview.setHtml(html);
+		size = -1;
+		html = "";
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	QApplication qapp(argc, argv);
+	WebView webview;
+	webview.show();//Maximized();
+
+	Server server(webview);
+
+	return qapp.exec();
+}
diff --git a/src/qookie-cast-client.h b/src/qookie-cast-client.h
new file mode 100644
index 0000000..766b48b
--- /dev/null
+++ b/src/qookie-cast-client.h
@@ -0,0 +1,34 @@
+// -*- c++ -*-
+#include <QtCore>
+#include <QtNetwork>
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+// Qt4 support
+#include <QWebView>
+using WebView = QWebView;
+#else
+#include <QTextEdit>
+using WebView = QTextEdit;
+#endif
+
+class Server
+	: public QObject
+{
+	Q_OBJECT
+public:
+	Server(WebView& webview, QObject *parent = 0);
+
+signals:
+	void dataReceived(QByteArray);
+
+private slots:
+	void newConnection();
+	void disconnected();
+	void readyRead();
+
+private:
+	QTcpServer *server;
+	WebView& webview;
+	QString html;
+	int size{-1};
+};
-- 
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