myth.cpp

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// Program Name: myth.cpp
// Created     : Jan. 19, 2010
//
// Copyright (c) 2010 David Blain <dblain@mythtv.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
 
// Qt
#include <QDir>
#include <QFileInfo>
#include <QCryptographicHash>
#include <QHostAddress>
#include <QUdpSocket>
 
// MythTV
#include "libmythbase/dbutil.h"
#include "libmythbase/hardwareprofile.h"
#include "libmythbase/mythcorecontext.h"
#include "libmythbase/mythcoreutil.h"
#include "libmythbase/mythdate.h"
#include "libmythbase/mythdbcon.h"
#include "libmythbase/mythlogging.h"
#include "libmythbase/mythtimezone.h"
#include "libmythbase/mythversion.h"
#include "libmythbase/storagegroup.h"
#include "libmythbase/version.h"
 
// MythBackend
#include "backendcontext.h"
#include "myth.h"
#include "scheduler.h"
#include "serviceUtil.h"
 
//
 
DTC::ConnectionInfo* Myth::GetConnectionInfo( const QString  &sPin )
{
    QString sSecurityPin = gCoreContext->GetSetting( "SecurityPin", "");
 
    if ( sSecurityPin.isEmpty() )
        throw( QString( "No Security Pin assigned. Run mythtv-setup to set one." ));
        //SB: UPnPResult_HumanInterventionRequired,
 
    if ((sSecurityPin != "0000" ) && ( sPin != sSecurityPin ))
        throw( QString( "Not Authorized" ));
        //SB: UPnPResult_ActionNotAuthorized );
 
    DatabaseParams params = GetMythDB()->GetDatabaseParams();
 
    // ----------------------------------------------------------------------
    // Check for DBHostName of "localhost" and change to public name or IP
    // ----------------------------------------------------------------------
 
    QString sServerIP = gCoreContext->GetBackendServerIP();
    //QString sPeerIP   = pRequest->GetPeerAddress();
 
    if ((params.m_dbHostName.compare("localhost",Qt::CaseInsensitive)==0
      || params.m_dbHostName == "127.0.0.1"
      || params.m_dbHostName == "::1")
      && !sServerIP.isEmpty())  // &&
        //(sServerIP         != sPeerIP    ))
    {
        params.m_dbHostName = sServerIP;
    }
 
    // If dbHostName is an IPV6 address with scope,
    // remove the scope. Unescaped % signs are an
    // xml violation
    QString dbHostName(params.m_dbHostName);
    QHostAddress addr;
    if (addr.setAddress(dbHostName))
    {
        addr.setScopeId(QString());
        dbHostName = addr.toString();
    }
    // ----------------------------------------------------------------------
    // Create and populate a ConnectionInfo object
    // ----------------------------------------------------------------------
 
    auto                *pInfo     = new DTC::ConnectionInfo();
    DTC::DatabaseInfo   *pDatabase = pInfo->Database();
    DTC::WOLInfo        *pWOL      = pInfo->WOL();
    DTC::VersionInfo    *pVersion  = pInfo->Version();
 
    pDatabase->setHost         ( dbHostName             );
    pDatabase->setPing         ( params.m_dbHostPing    );
    pDatabase->setPort         ( params.m_dbPort        );
    pDatabase->setUserName     ( params.m_dbUserName    );
    pDatabase->setPassword     ( params.m_dbPassword    );
    pDatabase->setName         ( params.m_dbName        );
    pDatabase->setType         ( params.m_dbType        );
    pDatabase->setLocalEnabled ( params.m_localEnabled  );
    pDatabase->setLocalHostName( params.m_localHostName );
 
    pWOL->setEnabled           ( params.m_wolEnabled   );
    pWOL->setReconnect         ( params.m_wolReconnect.count() );
    pWOL->setRetry             ( params.m_wolRetry     );
    pWOL->setCommand           ( params.m_wolCommand   );
 
    pVersion->setVersion       ( MYTH_SOURCE_VERSION   );
    pVersion->setBranch        ( MYTH_SOURCE_PATH      );
    pVersion->setProtocol      ( MYTH_PROTO_VERSION    );
    pVersion->setBinary        ( MYTH_BINARY_VERSION   );
    pVersion->setSchema        ( MYTH_DATABASE_VERSION );
 
    // ----------------------------------------------------------------------
    // Return the pointer... caller is responsible to delete it!!!
    // ----------------------------------------------------------------------
 
    return pInfo;
}
 
//
 
QString Myth::GetHostName( )
{
    if (!gCoreContext)
        throw( QString( "No MythCoreContext in GetHostName." ));
 
    return gCoreContext->GetHostName();
}
//
 
QStringList Myth::GetHosts( )
{
    MSqlQuery query(MSqlQuery::InitCon());
 
    if (!query.isConnected())
        throw( QString( "Database not open while trying to load list of hosts" ));
 
    query.prepare(
        "SELECT DISTINCTROW hostname "
        "FROM settings "
        "WHERE (not isNull( hostname ))");
 
    if (!query.exec())
    {
        MythDB::DBError("MythAPI::GetHosts()", query);
 
        throw( QString( "Database Error executing query." ));
    }
 
    // ----------------------------------------------------------------------
    // return the results of the query
    // ----------------------------------------------------------------------
 
    QStringList oList;
 
    while (query.next())
        oList.append( query.value(0).toString() );
 
    return oList;
}
 
//
 
QStringList Myth::GetKeys()
{
    MSqlQuery query(MSqlQuery::InitCon());
 
    if (!query.isConnected())
        throw( QString("Database not open while trying to load settings"));
 
    query.prepare("SELECT DISTINCTROW value FROM settings;" );
 
    if (!query.exec())
    {
        MythDB::DBError("MythAPI::GetKeys()", query);
 
        throw( QString( "Database Error executing query." ));
    }
 
    // ----------------------------------------------------------------------
    // return the results of the query
    // ----------------------------------------------------------------------
 
    QStringList oResults;
 
    //pResults->setObjectName( "KeyList" );
 
    while (query.next())
        oResults.append( query.value(0).toString() );
 
    return oResults;
}
 
//
 
DTC::StorageGroupDirList *Myth::GetStorageGroupDirs( const QString &sGroupName,
                                                     const QString &sHostName )
{
    MSqlQuery query(MSqlQuery::InitCon());
 
    if (!query.isConnected())
        throw( QString("Database not open while trying to list "
                       "Storage Group Dirs"));
 
    if (!sGroupName.isEmpty() && !sHostName.isEmpty())
    {
        query.prepare("SELECT id, groupname, hostname, dirname "
                      "FROM storagegroup "
                      "WHERE groupname = :GROUP AND hostname = :HOST "
                      "ORDER BY groupname, hostname, dirname" );
        query.bindValue(":HOST",  sHostName);
        query.bindValue(":GROUP", sGroupName);
    }
    else if (!sHostName.isEmpty())
    {
        query.prepare("SELECT id, groupname, hostname, dirname "
                      "FROM storagegroup "
                      "WHERE hostname = :HOST "
                      "ORDER BY groupname, hostname, dirname" );
        query.bindValue(":HOST",  sHostName);
    }
    else if (!sGroupName.isEmpty())
    {
        query.prepare("SELECT id, groupname, hostname, dirname "
                      "FROM storagegroup "
                      "WHERE groupname = :GROUP "
                      "ORDER BY groupname, hostname, dirname" );
        query.bindValue(":GROUP", sGroupName);
    }
    else
    {
        query.prepare("SELECT id, groupname, hostname, dirname "
                      "FROM storagegroup "
                      "ORDER BY groupname, hostname, dirname" );
    }
 
    if (!query.exec())
    {
        MythDB::DBError("MythAPI::GetStorageGroupDirs()", query);
 
        throw( QString( "Database Error executing query." ));
    }
 
    // ----------------------------------------------------------------------
    // return the results of the query plus R/W and size information
    // ----------------------------------------------------------------------
 
    auto* pList = new DTC::StorageGroupDirList();
 
    while (query.next())
    {
        DTC::StorageGroupDir *pStorageGroupDir = pList->AddNewStorageGroupDir();
        QFileInfo fi(query.value(3).toString());
        int64_t free = 0;
        int64_t total = 0;
        int64_t used = 0;
 
        free = getDiskSpace(query.value(3).toString(), total, used);
 
        pStorageGroupDir->setId            ( query.value(0).toInt()       );
        pStorageGroupDir->setGroupName     ( query.value(1).toString()    );
        pStorageGroupDir->setHostName      ( query.value(2).toString()    );
        pStorageGroupDir->setDirName       ( query.value(3).toString()    );
        pStorageGroupDir->setDirRead       ( fi.isReadable()              );
        pStorageGroupDir->setDirWrite      ( fi.isWritable()              );
        pStorageGroupDir->setKiBFree       ( free                         );
    }
 
    return pList;
}
 
//
 
bool Myth::AddStorageGroupDir( const QString &sGroupName,
                               const QString &sDirName,
                               const QString &sHostName )
{
    MSqlQuery query(MSqlQuery::InitCon());
 
    if (!query.isConnected())
        throw( QString("Database not open while trying to add Storage Group "
                       "dir"));
 
    if (sGroupName.isEmpty())
        throw ( QString( "Storage Group Required" ));
 
    if (sDirName.isEmpty())
        throw ( QString( "Directory Name Required" ));
 
    if (sHostName.isEmpty())
        throw ( QString( "HostName Required" ));
 
    query.prepare("SELECT COUNT(*) "
                  "FROM storagegroup "
                  "WHERE groupname = :GROUPNAME "
                  "AND dirname = :DIRNAME "
                  "AND hostname = :HOSTNAME;");
    query.bindValue(":GROUPNAME", sGroupName );
    query.bindValue(":DIRNAME"  , sDirName   );
    query.bindValue(":HOSTNAME" , sHostName  );
    if (!query.exec())
    {
        MythDB::DBError("MythAPI::AddStorageGroupDir()", query);
 
        throw( QString( "Database Error executing query." ));
    }
 
    if (query.next())
    {
        if (query.value(0).toInt() > 0)
            return false;
    }
 
    query.prepare("INSERT storagegroup "
                  "( groupname, dirname, hostname ) "
                  "VALUES "
                  "( :GROUPNAME, :DIRNAME, :HOSTNAME );");
    query.bindValue(":GROUPNAME", sGroupName );
    query.bindValue(":DIRNAME"  , sDirName   );
    query.bindValue(":HOSTNAME" , sHostName  );
 
    if (!query.exec())
    {
        MythDB::DBError("MythAPI::AddStorageGroupDir()", query);
 
        throw( QString( "Database Error executing query." ));
    }
 
    return true;
}
 
//
 
bool Myth::RemoveStorageGroupDir( const QString &sGroupName,
                                  const QString &sDirName,
                                  const QString &sHostName )
{
    MSqlQuery query(MSqlQuery::InitCon());
 
    if (!query.isConnected())
        throw( QString("Database not open while trying to remove Storage "
                       "Group dir"));
 
    if (sGroupName.isEmpty())
        throw ( QString( "Storage Group Required" ));
 
    if (sDirName.isEmpty())
        throw ( QString( "Directory Name Required" ));
 
    if (sHostName.isEmpty())
        throw ( QString( "HostName Required" ));
 
    query.prepare("DELETE "
                  "FROM storagegroup "
                  "WHERE groupname = :GROUPNAME "
                  "AND dirname = :DIRNAME "
                  "AND hostname = :HOSTNAME;");
    query.bindValue(":GROUPNAME", sGroupName );
    query.bindValue(":DIRNAME"  , sDirName   );
    query.bindValue(":HOSTNAME" , sHostName  );
    if (!query.exec())
    {
        MythDB::DBError("MythAPI::AddStorageGroupDir()", query);
 
        throw( QString( "Database Error executing query." ));
    }
 
    return true;
}
 
//
 
DTC::TimeZoneInfo *Myth::GetTimeZone(  )
{
    auto *pResults = new DTC::TimeZoneInfo();
 
    pResults->setTimeZoneID( MythTZ::getTimeZoneID() );
    pResults->setUTCOffset( MythTZ::calc_utc_offset() );
    pResults->setCurrentDateTime( MythDate::current(true) );
 
    return pResults;
}
 
//
 
QString Myth::GetFormatDate(const QDateTime &Date, bool ShortDate)
{
    uint dateFormat = MythDate::kDateFull | MythDate::kSimplify | MythDate::kAutoYear;
    if (ShortDate)
        dateFormat = MythDate::kDateShort | MythDate::kSimplify | MythDate::kAutoYear;
 
    return MythDate::toString(Date, dateFormat);
}
 
//
 
QString Myth::GetFormatDateTime(const QDateTime &DateTime, bool ShortDate)
{
    uint dateFormat = MythDate::kDateTimeFull | MythDate::kSimplify | MythDate::kAutoYear;
    if (ShortDate)
        dateFormat = MythDate::kDateTimeShort | MythDate::kSimplify | MythDate::kAutoYear;
 
    return MythDate::toString(DateTime, dateFormat);
}
 
//
 
QString Myth::GetFormatTime(const QDateTime &Time)
{
    return MythDate::toString(Time, MythDate::kTime);
}
 
//
 
QDateTime Myth::ParseISODateString(const QString& DateTimeString)
{
    QDateTime dateTime = QDateTime::fromString(DateTimeString, Qt::ISODate);
 
    if (!dateTime.isValid())
        throw QString( "Unable to parse DateTimeString" );
 
    return dateTime;
}
 
//
 
DTC::LogMessageList *Myth::GetLogs(  const QString   &HostName,
                                     const QString   &Application,
                                     int             PID,
                                     int             TID,
                                     const QString   &Thread,
                                     const QString   &Filename,
                                     int             Line,
                                     const QString   &Function,
                                     const QDateTime &FromTime,
                                     const QDateTime &ToTime,
                                     const QString   &Level,
                                     const QString   &MsgContains )
{
    auto *pList = new DTC::LogMessageList();
 
    MSqlQuery query(MSqlQuery::InitCon());
 
    // Get host name list
    QString sql = "SELECT DISTINCT host FROM logging ORDER BY host ASC";
    if (!query.exec(sql))
    {
        MythDB::DBError("Retrieving log host names", query);
        delete pList;
        throw( QString( "Database Error executing query." ));
    }
    while (query.next())
    {
        DTC::LabelValue *pLabelValue = pList->AddNewHostName();
        QString availableHostName = query.value(0).toString();
        pLabelValue->setValue   ( availableHostName );
        pLabelValue->setActive  ( availableHostName == HostName );
        pLabelValue->setSelected( availableHostName == HostName );
    }
    // Get application list
    sql = "SELECT DISTINCT application FROM logging ORDER BY application ASC";
    if (!query.exec(sql))
    {
        MythDB::DBError("Retrieving log applications", query);
        delete pList;
        throw( QString( "Database Error executing query." ));
    }
    while (query.next())
    {
        DTC::LabelValue *pLabelValue = pList->AddNewApplication();
        QString availableApplication = query.value(0).toString();
        pLabelValue->setValue   ( availableApplication );
        pLabelValue->setActive  ( availableApplication == Application );
        pLabelValue->setSelected( availableApplication == Application );
    }
 
    if (!HostName.isEmpty() && !Application.isEmpty())
    {
        // Get log messages
        sql = "SELECT host, application, pid, tid, thread, filename, "
              "       line, `function`, msgtime, level, message "
              "  FROM logging "
              " WHERE host = COALESCE(:HOSTNAME, host) "
              "   AND application = COALESCE(:APPLICATION, application) "
              "   AND pid = COALESCE(:PID, pid) "
              "   AND tid = COALESCE(:TID, tid) "
              "   AND thread = COALESCE(:THREAD, thread) "
              "   AND filename = COALESCE(:FILENAME, filename) "
              "   AND line = COALESCE(:LINE, line) "
              "   AND `function` = COALESCE(:FUNCTION, `function`) "
              "   AND msgtime >= COALESCE(:FROMTIME, msgtime) "
              "   AND msgtime <= COALESCE(:TOTIME, msgtime) "
              "   AND level <= COALESCE(:LEVEL, level) "
              ;
        if (!MsgContains.isEmpty())
        {
            sql.append("   AND message LIKE :MSGCONTAINS ");
        }
        sql.append(" ORDER BY msgtime ASC;");
 
#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
        QVariant ullNull = QVariant(QVariant::ULongLong);
#else
        QVariant ullNull = QVariant(QMetaType(QMetaType::ULongLong));
#endif
        query.prepare(sql);
 
        query.bindValue(":HOSTNAME", (HostName.isEmpty()) ? QString() : HostName);
        query.bindValue(":APPLICATION", (Application.isEmpty()) ? QString() :
                                                                  Application);
        query.bindValue(":PID", ( PID == 0 ) ? ullNull : (qint64)PID);
        query.bindValue(":TID", ( TID == 0 ) ? ullNull : (qint64)TID);
        query.bindValue(":THREAD", (Thread.isEmpty()) ? QString() : Thread);
        query.bindValue(":FILENAME", (Filename.isEmpty()) ? QString() : Filename);
        query.bindValue(":LINE", ( Line == 0 ) ? ullNull : (qint64)Line);
        query.bindValue(":FUNCTION", (Function.isEmpty()) ? QString() : Function);
        query.bindValue(":FROMTIME", (FromTime.isValid()) ? FromTime : QDateTime());
        query.bindValue(":TOTIME", (ToTime.isValid()) ? ToTime : QDateTime());
        query.bindValue(":LEVEL", (Level.isEmpty()) ? ullNull :
                                        (qint64)logLevelGet(Level));
 
        if (!MsgContains.isEmpty())
        {
            query.bindValue(":MSGCONTAINS", "%" + MsgContains + "%" );
        }
 
        if (!query.exec())
        {
            MythDB::DBError("Retrieving log messages", query);
            delete pList;
            throw( QString( "Database Error executing query." ));
        }
 
        while (query.next())
        {
            DTC::LogMessage *pLogMessage = pList->AddNewLogMessage();
 
            pLogMessage->setHostName( query.value(0).toString() );
            pLogMessage->setApplication( query.value(1).toString() );
            pLogMessage->setPID( query.value(2).toInt() );
            pLogMessage->setTID( query.value(3).toInt() );
            pLogMessage->setThread( query.value(4).toString() );
            pLogMessage->setFilename( query.value(5).toString() );
            pLogMessage->setLine( query.value(6).toInt() );
            pLogMessage->setFunction( query.value(7).toString() );
            pLogMessage->setTime(MythDate::as_utc(query.value(8).toDateTime()));
            pLogMessage->setLevel( logLevelGetName(
                                       (LogLevel_t)query.value(9).toInt()) );
            pLogMessage->setMessage( query.value(10).toString() );
        }
    }
 
    return pList;
}
 
//
 
DTC::FrontendList *Myth::GetFrontends( bool OnLine )
{
    auto *pList = new DTC::FrontendList();
    QMap<QString, Frontend*> frontends;
    if (OnLine)
        frontends = gBackendContext->GetConnectedFrontends();
    else
        frontends = gBackendContext->GetFrontends();
 
    for (auto * fe : std::as_const(frontends))
    {
        DTC::Frontend *pFrontend = pList->AddNewFrontend();
        pFrontend->setName(fe->m_name);
        pFrontend->setIP(fe->m_ip.toString());
        int port = gCoreContext->GetNumSettingOnHost("FrontendStatusPort",
                                                        fe->m_name, 6547);
        pFrontend->setPort(port);
        pFrontend->setOnLine(fe->m_connectionCount > 0);
    }
 
    return pList;
}
 
//
 
QString Myth::GetSetting( const QString &sHostName,
                          const QString &sKey,
                          const QString &sDefault )
{
    if (sKey.isEmpty())
        throw( QString("Missing or empty Key (settings.value)") );
 
    if (sHostName == "_GLOBAL_")
    {
        MSqlQuery query(MSqlQuery::InitCon());
 
        query.prepare("SELECT data FROM settings "
                        "WHERE value = :VALUE "
                        "AND (hostname IS NULL)" );
 
        query.bindValue(":VALUE", sKey );
 
        if (!query.exec())
        {
            MythDB::DBError("API Myth/GetSetting ", query);
            throw( QString( "Database Error executing query." ));
        }
 
        return query.next() ? query.value(0).toString() : sDefault;
    }
 
    QString hostname = sHostName;
 
    if (sHostName.isEmpty())
        hostname = gCoreContext->GetHostName();
 
    return gCoreContext->GetSettingOnHost(sKey, hostname, sDefault);
}
 
//
 
DTC::SettingList *Myth::GetSettingList(const QString &sHostName)
{
 
    MSqlQuery query(MSqlQuery::InitCon());
 
    if (!query.isConnected())
    {
        throw( QString("Database not open while trying to load settings for host: %1")
                  .arg( sHostName ));
    }
 
    auto *pList = new DTC::SettingList();
 
    //pList->setObjectName( "Settings" );
    pList->setHostName  ( sHostName  );
 
    // ------------------------------------------------------------------
    // Looking to return all Setting for supplied hostname
    // ------------------------------------------------------------------
 
    if (sHostName.isEmpty())
    {
        query.prepare("SELECT value, data FROM settings "
                        "WHERE (hostname IS NULL)" );
    }
    else
    {
        query.prepare("SELECT value, data FROM settings "
                        "WHERE (hostname = :HOSTNAME)" );
 
        query.bindValue(":HOSTNAME", sHostName );
    }
 
    if (!query.exec())
    {
        // clean up unused object we created.
 
        delete pList;
 
        MythDB::DBError("MythAPI::GetSetting() w/o key ", query);
        throw( QString( "Database Error executing query." ));
    }
 
    while (query.next())
        pList->Settings().insert( query.value(0).toString(), query.value(1) );
 
    return pList;
}
 
//
 
bool Myth::PutSetting( const QString &sHostName,
                       const QString &sKey,
                       const QString &sValue )
{
    if (!sKey.isEmpty())
    {
        return gCoreContext->SaveSettingOnHost( sKey, sValue, sHostName );
    }
 
    throw ( QString( "Key Required" ));
}
 
//
 
bool Myth::ChangePassword( const QString   &sUserName,
                           const QString   &sOldPassword,
                           const QString   &sNewPassword )
{
    LOG(VB_GENERAL, LOG_NOTICE, "ChangePassword is deprecated, use "
                                "ManageDigestUser.");
 
    return ( ManageDigestUser("ChangePassword", sUserName, sOldPassword,
                              sNewPassword, "") );
}
 
//
 
bool Myth::TestDBSettings( const QString &sHostName,
                           const QString &sUserName,
                           const QString &sPassword,
                           const QString &sDBName,
                           int   dbPort)
{
    bool bResult = false;
 
    QString db("mythconverg");
    int port = 3306;
 
    if (!sDBName.isEmpty())
        db = sDBName;
 
    if (dbPort != 0)
        port = dbPort;
 
    bResult = TestDatabase(sHostName, sUserName, sPassword, db, port);
 
    return bResult;
}
 
//
 
bool Myth::SendMessage( const QString &sMessage,
                        const QString &sAddress,
                        int   udpPort,
                        int   Timeout)
{
    bool bResult = false;
 
    if (sMessage.isEmpty())
        return bResult;
 
    if (Timeout < 0 || Timeout > 999)
        Timeout = 0;
 
    QString xmlMessage =
        "<mythmessage version=\"1\">\n"
        "  <text>" + sMessage + "</text>\n"
        "  <timeout>" + QString::number(Timeout) + "</timeout>\n"
        "</mythmessage>";
 
    QHostAddress address = QHostAddress::Broadcast;
    unsigned short port = 6948;
 
    if (!sAddress.isEmpty())
        address.setAddress(sAddress);
 
    if (udpPort != 0)
        port = udpPort;
 
    auto *sock = new QUdpSocket();
    QByteArray utf8 = xmlMessage.toUtf8();
    int size = utf8.length();
 
    if (sock->writeDatagram(utf8.constData(), size, address, port) < 0)
    {
        LOG(VB_GENERAL, LOG_ERR,
            QString("Failed to send UDP/XML packet (Message: %1 "
                    "Address: %2 Port: %3")
                .arg(sMessage, sAddress, QString::number(port)));
    }
    else
    {
        LOG(VB_GENERAL, LOG_DEBUG,
            QString("UDP/XML packet sent! (Message: %1 Address: %2 Port: %3")
                .arg(sMessage,
                     address.toString().toLocal8Bit(),
                     QString::number(port)));
        bResult = true;
    }
 
    sock->deleteLater();
 
    return bResult;
}
 
bool Myth::SendNotification( bool  bError,
                             const QString &Type,
                             const QString &sMessage,
                             const QString &sOrigin,
                             const QString &sDescription,
                             const QString &sImage,
                             const QString &sExtra,
                             const QString &sProgressText,
                             float fProgress,
                             int   Duration,
                             bool  bFullscreen,
                             uint  Visibility,
                             uint  Priority,
                             const QString &sAddress,
                             int   udpPort )
{
    bool bResult = false;
 
    if (sMessage.isEmpty())
        return bResult;
 
    if (Duration < 0 || Duration > 999)
        Duration = -1;
 
    QString xmlMessage =
        "<mythnotification version=\"1\">\n"
        "  <text>" + sMessage + "</text>\n"
        "  <origin>" + (sOrigin.isNull() ? tr("MythServices") : sOrigin) + "</origin>\n"
        "  <description>" + sDescription + "</description>\n"
        "  <timeout>" + QString::number(Duration) + "</timeout>\n"
        "  <image>" + sImage + "</image>\n"
        "  <extra>" + sExtra + "</extra>\n"
        "  <progress_text>" + sProgressText + "</progress_text>\n"
        "  <progress>" + QString::number(fProgress) + "</progress>\n"
        "  <fullscreen>" + (bFullscreen ? "true" : "false") + "</fullscreen>\n"
        "  <visibility>" + QString::number(Visibility) + "</visibility>\n"
        "  <priority>" + QString::number(Priority) + "</priority>\n"
        "  <type>" + (bError ? "error" : Type) + "</type>\n"
        "</mythnotification>";
 
    QHostAddress address = QHostAddress::Broadcast;
    unsigned short port = 6948;
 
    if (!sAddress.isEmpty())
        address.setAddress(sAddress);
 
    if (udpPort != 0)
        port = udpPort;
 
    auto *sock = new QUdpSocket();
    QByteArray utf8 = xmlMessage.toUtf8();
    int size = utf8.length();
 
    if (sock->writeDatagram(utf8.constData(), size, address, port) < 0)
    {
        LOG(VB_GENERAL, LOG_ERR,
            QString("Failed to send UDP/XML packet (Notification: %1 "
                    "Address: %2 Port: %3")
            .arg(sMessage, sAddress, QString::number(port)));
    }
    else
    {
        LOG(VB_GENERAL, LOG_DEBUG,
            QString("UDP/XML packet sent! (Notification: %1 Address: %2 Port: %3")
                .arg(sMessage,
                     address.toString().toLocal8Bit(), QString::number(port)));
        bResult = true;
    }
 
    sock->deleteLater();
 
    return bResult;
}
 
//
 
bool Myth::BackupDatabase(void)
{
    bool bResult = false;
 
    DBUtil dbutil;
    MythDBBackupStatus status = kDB_Backup_Unknown;
    QString filename;
 
    LOG(VB_GENERAL, LOG_NOTICE, "Performing API invoked DB Backup.");
 
    status = DBUtil::BackupDB(filename);
 
    if (status == kDB_Backup_Completed)
    {
        LOG(VB_GENERAL, LOG_NOTICE, "Database backup succeeded.");
        bResult = true;
    }
    else
        LOG(VB_GENERAL, LOG_ERR, "Database backup failed.");
 
    return bResult;
}
 
//
 
bool Myth::CheckDatabase( bool repair )
{
    LOG(VB_GENERAL, LOG_NOTICE, "Performing API invoked DB Check.");
 
    bool bResult = DBUtil::CheckTables(repair);
 
    if (bResult)
        LOG(VB_GENERAL, LOG_NOTICE, "Database check complete.");
    else
        LOG(VB_GENERAL, LOG_ERR, "Database check failed.");
 
    return bResult;
}
 
bool Myth::DelayShutdown( void )
{
    auto *scheduler = dynamic_cast<Scheduler*>(gCoreContext->GetScheduler());
    if (scheduler == nullptr)
        return false;
    scheduler->DelayShutdown();
    LOG(VB_GENERAL, LOG_NOTICE, "Shutdown delayed 5 minutes for external application.");
    return true;
}
 
//
 
bool Myth::ProfileSubmit()
{
    HardwareProfile profile;
    LOG(VB_GENERAL, LOG_NOTICE, "Profile Submission...");
    profile.GenerateUUIDs();
    bool bResult = profile.SubmitProfile();
    if (bResult)
        LOG(VB_GENERAL, LOG_NOTICE, "Profile Submitted.");
 
    return bResult;
}
 
//
 
bool Myth::ProfileDelete()
{
    HardwareProfile profile;
    LOG(VB_GENERAL, LOG_NOTICE, "Profile Deletion...");
    profile.GenerateUUIDs();
    bool bResult = profile.DeleteProfile();
    if (bResult)
        LOG(VB_GENERAL, LOG_NOTICE, "Profile Deleted.");
 
    return bResult;
}
 
//
 
QString Myth::ProfileURL()
{
    QString sProfileURL;
 
    HardwareProfile profile;
    profile.GenerateUUIDs();
    sProfileURL = profile.GetProfileURL();
    LOG(VB_GENERAL, LOG_NOTICE, QString("ProfileURL: %1").arg(sProfileURL));
 
    return sProfileURL;
}
 
//
 
QString Myth::ProfileUpdated()
{
    QString sProfileUpdate;
 
    HardwareProfile profile;
    profile.GenerateUUIDs();
    QDateTime tUpdated;
    tUpdated = profile.GetLastUpdate();
    sProfileUpdate = tUpdated.toString(
    gCoreContext->GetSetting( "DateFormat", "MM.dd.yyyy"));
 
    return sProfileUpdate;
}
 
//
 
QString Myth::ProfileText()
{
    QString sProfileText;
 
    HardwareProfile profile;
    sProfileText = HardwareProfile::GetHardwareProfile();
 
    return sProfileText;
}
 
//
 
DTC::BackendInfo* Myth::GetBackendInfo( void )
{
 
    // ----------------------------------------------------------------------
    // Create and populate a Configuration object
    // ----------------------------------------------------------------------
 
    auto                   *pInfo      = new DTC::BackendInfo();
    DTC::BuildInfo         *pBuild     = pInfo->Build();
    DTC::EnvInfo           *pEnv       = pInfo->Env();
    DTC::LogInfo           *pLog       = pInfo->Log();
 
    pBuild->setVersion     ( MYTH_SOURCE_VERSION   );
    pBuild->setLibX264     ( CONFIG_LIBX264        );
    pBuild->setLibDNS_SD   ( CONFIG_LIBDNS_SD      );
    pEnv->setLANG          ( qEnvironmentVariable("LANG")        );
    pEnv->setLCALL         ( qEnvironmentVariable("LC_ALL")      );
    pEnv->setLCCTYPE       ( qEnvironmentVariable("LC_CTYPE")    );
    pEnv->setHOME          ( qEnvironmentVariable("HOME")        );
    pEnv->setMYTHCONFDIR   ( qEnvironmentVariable("MYTHCONFDIR") );
    pLog->setLogArgs       ( logPropagateArgs      );
 
    // ----------------------------------------------------------------------
    // Return the pointer... caller is responsible to delete it!!!
    // ----------------------------------------------------------------------
 
    return pInfo;
 
}
 
//
 
bool Myth::ManageDigestUser( const QString &sAction,
                             const QString &sUserName,
                             const QString &sPassword,
                             const QString &sNewPassword,
                             const QString &sAdminPassword )
{
 
    DigestUserActions sessionAction = DIGEST_USER_ADD;
 
    if (sAction == "Add")
        sessionAction = DIGEST_USER_ADD;
    else if (sAction == "Remove")
        sessionAction = DIGEST_USER_REMOVE;
    else if (sAction == "ChangePassword")
        sessionAction = DIGEST_USER_CHANGE_PW;
    else
    {
        LOG(VB_GENERAL, LOG_ERR, QString("Action must be Add, Remove or "
                                         "ChangePassword, not '%1'")
                                         .arg(sAction));
        return false;
    }
 
    return MythSessionManager::ManageDigestUser(sessionAction, sUserName,
                                                sPassword, sNewPassword,
                                                sAdminPassword);
}
 
//
 
bool Myth::ManageUrlProtection( const QString &sServices,
                                const QString &sAdminPassword )
{
    if (!MythSessionManager::IsValidUser("admin"))
    {
        LOG(VB_GENERAL, LOG_ERR, QString("Backend has no '%1' user!")
                                         .arg("admin"));
        return false;
    }
 
    if (MythSessionManager::CreateDigest("admin", sAdminPassword) !=
        MythSessionManager::GetPasswordDigest("admin"))
    {
        LOG(VB_GENERAL, LOG_ERR, QString("Incorrect password for user: %1")
                                         .arg("admin"));
        return false;
    }
 
    QStringList serviceList = sServices.split(",");
 
    serviceList.removeDuplicates();
 
    QStringList protectedURLs;
 
    if (serviceList.size() == 1 && serviceList.first() == "All")
    {
        for (const QString& service : KnownServices)
            protectedURLs << '/' + service;
    }
    else if (serviceList.size() == 1 && serviceList.first() == "None")
    {
        protectedURLs << "Unprotected";
    }
    else
    {
        for (const QString& service : std::as_const(serviceList))
        {
            if (KnownServices.contains(service))
                protectedURLs << '/' + service;
            else
                LOG(VB_GENERAL, LOG_ERR, QString("Invalid service name: '%1'")
                                                  .arg(service));
        }
    }
 
    if (protectedURLs.isEmpty())
    {
        LOG(VB_GENERAL, LOG_ERR, "No valid Services were found");
        return false;
    }
 
    return gCoreContext->SaveSettingOnHost("HTTP/Protected/Urls",
                                           protectedURLs.join(';'), "");
}