upnputil.cpp

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// Program Name: upnputil.cpp
// Created     : Jan. 15, 2007
//
// Purpose     : Global Helper Methods...
//                                                                            
// Copyright (c) 2007 David Blain <dblain@mythtv.org>
//                                          
// Licensed under the GPL v2 or later, see COPYING for details                    
//

// POSIX headers
#include <sys/types.h>
#include <sys/time.h>
#include <cerrno>

// Qt headers
#include <QUuid>
#include <QStringList>

// MythTV headers
#include "upnputil.h"
#include "upnp.h"
#include "upnphelpers.h"
#include "compat.h"
#include "mythconfig.h" // for HAVE_GETIFADDRS
#include "mythlogging.h"
#include "httprequest.h"

// POSIX headers 2, needs to be after compat.h for OS X
#ifndef _WIN32
#include <sys/ioctl.h>
#endif // _WIN32


#include <zlib.h>
#undef Z_NULL
#define Z_NULL nullptr

//

QString LookupUDN( const QString &sDeviceType )
{
    QStringList sList = sDeviceType.split(':', QString::SkipEmptyParts);
    QString     sLoc  = "LookupUDN(" + sDeviceType + ')';

    if (sList.size() <= 2) 
    { 
        LOG(VB_GENERAL, LOG_ERR, sLoc + "- bad device type '" +
                                 sDeviceType + "', not enough tokens"); 
        return QString();
    }

    sList.removeLast();
    QString sName = "UPnP/UDN/" + sList.last();
    QString sUDN  = UPnp::GetConfiguration()->GetValue( sName, "" );

    LOG(VB_UPNP, LOG_INFO, sLoc + " sName=" + sName + ", sUDN=" + sUDN);

    // Generate new UUID if current is missing or broken
    if (sUDN.isEmpty() || sUDN.startsWith("{"))
    {
        sUDN = QUuid::createUuid().toString();
        // QUuid returns the uuid enclosed with braces {} which is not
        // DLNA compliant, we need to remove them
        sUDN = sUDN.mid(1, 36);

        Configuration *pConfig = UPnp::GetConfiguration();

        pConfig->SetValue( sName, sUDN );
        pConfig->Save();
    }

    return( sUDN );
}

//           

bool operator< ( TaskTime t1, TaskTime t2 )
{
    return (t1.tv_sec  < t2.tv_sec) ||
          ((t1.tv_sec == t2.tv_sec) && (t1.tv_usec < t2.tv_usec));
}

//           

bool operator== ( TaskTime t1, TaskTime t2 )
{
    return (t1.tv_sec == t2.tv_sec) && (t1.tv_usec == t2.tv_usec);
}

//           

void AddMicroSecToTaskTime( TaskTime &t, suseconds_t uSecs )
{
    uSecs += t.tv_usec;

    t.tv_sec  += (uSecs / 1000000);
    t.tv_usec  = (uSecs % 1000000);
}

//           

void AddSecondsToTaskTime( TaskTime &t, long nSecs )
{
    t.tv_sec  += nSecs;
}

QStringList GetSourceProtocolInfos()
{
    QStringList mimeTypes = HTTPRequest::GetSupportedMimeTypes();

    QString protocolStr("http-get:*:%1:%2");
    QStringList protocolList;
    QStringList::Iterator it;
    for (it = mimeTypes.begin(); it < mimeTypes.end(); ++it)
    {
        // HACK
        QString flags = DLNA::FlagsString(DLNA::ktm_s | DLNA::ktm_b | DLNA::kv1_5_flag);
        if (*it == "video/mpeg")
        {
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MPEG_PS_PAL;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MPEG_PS_NTSC;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MPEG_PS_SD_DTS;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=AVC_TS_NA_ISO;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MPEG_TS_HD_NA_ISO;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MPEG_TS_SD_NA_ISO;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=AVC_TS_EU_ISO;" + flags);
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MPEG_TS_SD_EU_ISO;" + flags);
        }
        else if (*it == "audio/mpeg")
        {
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MP3;" + flags); // Technically we don't actually serve these
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=MP3X;" + flags);
        }
        else if (*it == "audio/mp4")
        {
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=AAC_ISO_320;" + flags);
        }
        else if (*it == "audio/vnd.dolby.dd-raw")
        {
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=AC3;" + flags);
        }
        else if (*it == "audio/x-ms-wma")
        {
            protocolList << protocolStr.arg(*it).arg("DLNA.ORG_PN=WMAFULL;" + flags);
        }
        else
            protocolList << protocolStr.arg(*it).arg("*");
    }

    return protocolList;
}

QStringList GetSinkProtocolInfos()
{
    QStringList mimeTypes = HTTPRequest::GetSupportedMimeTypes();

    QStringList protocolList;
    QStringList::Iterator it;
    for (it = mimeTypes.begin(); it < mimeTypes.end(); ++it)
    {
        protocolList << QString("http-get:*:%1:*").arg(*it);
    }

    return protocolList;
}