chore: baseline usable version

src/qEmbyApp/components/mpvhttpstreamrelay.h

@@ -0,0 +1,60 @@
+#ifndef MPVHTTPSTREAMRELAY_H
+#define MPVHTTPSTREAMRELAY_H
+
+#include <QHash>
+#include <QNetworkProxy>
+#include <QObject>
+#include <QUrl>
+
+class QNetworkAccessManager;
+class QNetworkReply;
+class QTimer;
+class QTcpServer;
+class QTcpSocket;
+
+class MpvHttpStreamRelay : public QObject {
+    Q_OBJECT
+public:
+    explicit MpvHttpStreamRelay(QObject *parent = nullptr);
+    ~MpvHttpStreamRelay() override;
+
+    QUrl prepare(const QUrl &targetUrl, const QString &serverId,
+                 const QNetworkProxy &proxy);
+    void stop();
+
+Q_SIGNALS:
+    void upstreamSpeedChanged(qint64 bytesPerSecond);
+
+private:
+    struct ConnectionState {
+        QByteArray buffer;
+        QNetworkReply *reply = nullptr;
+        bool headersSent = false;
+        bool headOnly = false;
+        bool upstreamFinished = false;
+    };
+
+    void onNewConnection();
+    void onSocketReadyRead(QTcpSocket *socket);
+    void onSocketDisconnected(QTcpSocket *socket);
+    void processRequest(QTcpSocket *socket, const QByteArray &requestData);
+    void sendReplyHeaders(QTcpSocket *socket);
+    void pumpReplyToSocket(QTcpSocket *socket);
+    void writeError(QTcpSocket *socket, int statusCode, const QByteArray &message);
+    void closeConnection(QTcpSocket *socket);
+    void recordRelayedBytes(qint64 bytes);
+
+    static QByteArray reasonPhrase(int statusCode);
+    static bool isHopByHopHeader(QByteArray name);
+
+    QTcpServer *m_server = nullptr;
+    QNetworkAccessManager *m_network = nullptr;
+    QTimer *m_speedTimer = nullptr;
+    QHash<QTcpSocket *, ConnectionState> m_connections;
+    QUrl m_targetUrl;
+    QString m_serverId;
+    QString m_streamToken;
+    qint64 m_bytesRelayedSinceLastTick = 0;
+};
+
+#endif