servicehost.h

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// Program Name: servicehost.h
// Created     : Jan. 19, 2010
//
// Purpose     : Service Host Abstract Class 
//                                                                            
// Copyright (c) 2010 David Blain <dblain@mythtv.org>
//                                          
// Licensed under the GPL v2 or later, see LICENSE for details
//
 
#ifndef SERVICEHOST_H_
#define SERVICEHOST_H_
 
#include <QMetaObject>
#include <QMetaMethod>
#include <QMap>
#include <QString>
#include <QVariant>
 
#include "servicecontracts/service.h"
 
#include "libmythupnp/httprequest.h"
#include "libmythupnp/httpserver.h"
 
//
//
//
 
class MethodInfo
{
    public:
 
        int             m_nMethodIndex {0};
        QString         m_sName;
        QMetaMethod     m_oMethod;
        HttpRequestType m_eRequestType {(HttpRequestType)(RequestTypeGet |
                                                          RequestTypePost |
                                                          RequestTypeHead)};
 
    public:
        MethodInfo() = default;
 
        QVariant Invoke( Service *pService, const QStringMap &reqParams ) const;
};
 
using MetaInfoMap = QMap< QString, MethodInfo >;
 
//
//   ServiceHost is used for Standard Web Services Only 
//
//   (It does NOT expose anything as upnp devices/services)
//
 
class ServiceHost : public HttpServerExtension
{
    protected:
 
        QString             m_sBaseUrl;
 
        QMetaObject         m_oMetaObject {};
        MetaInfoMap         m_methods;
 
    protected:
 
        virtual bool FormatResponse( HTTPRequest *pRequest, QObject          *pResults );
        virtual bool FormatResponse( HTTPRequest *pRequest, const QFileInfo&  oInfo    );
        virtual bool FormatResponse( HTTPRequest *pRequest, const QVariant&   vValue   );
 
    public:
 
                 ServiceHost( const QMetaObject &metaObject,
                              const QString     &sExtensionName,
                                    QString      sBaseUrl,
                              const QString     &sSharePath );
        ~ServiceHost() override = default;
 
        QStringList GetBasePaths() override; // HttpServerExtension
 
        bool ProcessRequest( HTTPRequest *pRequest ) override; // HttpServerExtension
 
        virtual QString    GetServiceControlURL() { return m_sBaseUrl.mid( 1 ); }
 
        const QMetaObject& GetServiceMetaObject() { return m_oMetaObject; }
        const MetaInfoMap& GetMethods          () { return m_methods;     }
 
};
 
#endif