src/ShellIntegration.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2019 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "ShellIntegration.h"
  24
  25 //Internal
  26 #include "Global.h"
  27 #include "Registry_Decoder.h"
  28
  29 //MUtils
  30 #include <MUtils/Global.h>
  31 #include <MUtils/Exception.h>
  32 #include <MUtils/OSSupport.h>
  33 #include <MUtils/Registry.h>
  34
  35 //Qt
  36 #include <QString>
  37 #include <QStringList>
  38 #include <QRegExp>
  39 #include <QApplication>
  40 #include <QFileInfo>
  41 #include <QDir>
  42 #include <QMutexLocker>
  43 #include <QtConcurrentRun>
  44
  45 //Const
  46 static const char *g_lamexpShellAction = "ConvertWithLameXP";
  47 static const char *g_lamexpFileType    = "LameXP.SupportedAudioFile";
  48
  49 //State values
  50 static const int STATE_ENABLED =  1;
  51 static const int STATE_UNKNOWN =  0;
  52 static const int STATE_DISABLD = -1;
  53
  54 //State
  55 QAtomicInt ShellIntegration::m_state(STATE_UNKNOWN);
  56 QMutex ShellIntegration::m_mutex;
  57
  58 //Macros
  59 #define REG_WRITE_STRING(KEY, STR) RegSetValueEx(key, NULL, NULL, REG_SZ, reinterpret_cast<const BYTE*>(STR.utf16()), (STR.size() + 1) * sizeof(wchar_t))
  60
  61 ////////////////////////////////////////////////////////////
  62 // Constructor
  63 ////////////////////////////////////////////////////////////
  64
  65 ShellIntegration::ShellIntegration(void)
  66 {
  67         MUTILS_THROW("Cannot create instance of this class, sorry!");
  68 }
  69
  70 ////////////////////////////////////////////////////////////
  71 // Public Functions
  72 ////////////////////////////////////////////////////////////
  73
  74 void ShellIntegration::install(bool async)
  75 {
  76         //Install asynchronously
  77         if(async)
  78         {
  79                 QFuture<void>(QtConcurrent::run(install, false));
  80                 return;
  81         }
  82
  83         //Serialize
  84         QMutexLocker lock(&m_mutex);
  85
  86         //Checking
  87         if(m_state.fetchAndStoreOrdered(STATE_ENABLED) == STATE_ENABLED)
  88         {
  89                 return; /*already enabled, don't enable again!*/
  90         }
  91
  92         //Init some consts
  93         const QString lamexpFileType(g_lamexpFileType);
  94         const QString lamexpFileInfo(tr("Audio File supported by LameXP"));
  95         const QString lamexpShellText(tr("Convert this file with LameXP v%1").arg(QString().sprintf("%d.%02d", lamexp_version_major(), lamexp_version_minor())));
  96         const QString lamexpShellCommand = QString("\"%1\" \"--add=%2\"").arg(QDir::toNativeSeparators(QFileInfo(QApplication::applicationFilePath()).canonicalFilePath()), "%1");
  97         const QString lamexpShellAction(g_lamexpShellAction);
  98
  99         //Register the LameXP file type
 100         bool ok[4] = {false, false, false, false};
 101         ok[0] = MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1")                    .arg(lamexpFileType),                    QString(), lamexpFileInfo);
 102         ok[1] = MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\shell")             .arg(lamexpFileType),                    QString(), lamexpShellAction);
 103         ok[2] = MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\shell\\%2")         .arg(lamexpFileType, lamexpShellAction), QString(), lamexpShellText);
 104         ok[3] = MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\shell\\%2\\command").arg(lamexpFileType, lamexpShellAction), QString(), lamexpShellCommand);
 105         if(!(ok[0] && ok[1] && ok[2] && ok[3]))
 106         {
 107                 m_state.fetchAndStoreOrdered(STATE_UNKNOWN);
 108                 qWarning("Failed to register the LameXP file type!");
 109                 return;
 110         }
 111
 112         //Detect supported file types
 113         QStringList types;
 114         initializeTypes(lamexpFileType, lamexpShellAction, types);
 115
 116         //Add LameXP shell action to all supported file types
 117         for(QStringList::ConstIterator iter = types.constBegin(); iter != types.constEnd(); iter++)
 118         {
 119                 MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\shell\\%2")         .arg((*iter), lamexpShellAction), QString(), lamexpShellText);
 120                 MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\shell\\%2\\command").arg((*iter), lamexpShellAction), QString(), lamexpShellCommand);
 121         }
 122
 123         //Shell notification
 124         MUtils::OS::shell_change_notification();
 125 }
 126
 127 void ShellIntegration::remove(bool async)
 128 {
 129         //Remove asynchronously
 130         if(async)
 131         {
 132                 QFuture<void>(QtConcurrent::run(remove, false));
 133                 return;
 134         }
 135
 136         //Serialize
 137         QMutexLocker lock(&m_mutex);
 138
 139         //Checking
 140         if(m_state.fetchAndStoreOrdered(STATE_DISABLD) == STATE_DISABLD)
 141         {
 142                 return; /*already disabled, don't disable again!*/
 143         }
 144
 145         //Init some consts
 146         const QString lamexpFileType(g_lamexpFileType);
 147         const QString lamexpShellAction(g_lamexpShellAction);
 148
 149         //Initialization
 150         QStringList fileTypes;
 151
 152         //Find all registered file types
 153         if(!MUtils::Registry::reg_enum_subkeys(MUtils::Registry::root_user, "Software\\Classes", fileTypes))
 154         {
 155                 m_state.fetchAndStoreOrdered(STATE_UNKNOWN);
 156                 qWarning("Failed to enumerate file types!");
 157                 return;
 158         }
 159
 160         //Remove shell action from all file types
 161         for(QStringList::ConstIterator iter = fileTypes.constBegin(); iter != fileTypes.constEnd(); iter++)
 162         {
 163                 //Remove LameXP-specific types altogether
 164                 if(iter->startsWith('.'))
 165                 {
 166                         QString currentFileType;
 167                         if(MUtils::Registry::reg_value_read(MUtils::Registry::root_user, QString("Software\\Classes\\%1").arg(*iter), QString(), currentFileType))
 168                         {
 169                                 if(currentFileType.compare(lamexpFileType, Qt::CaseInsensitive) == 0)
 170                                 {
 171                                         MUtils::Registry::reg_key_delete(MUtils::Registry::root_user, QString("Software\\Classes\\%1").arg(*iter));
 172                                         continue;
 173                                 }
 174                         }
 175                 }
 176
 177                 //Remove shell action for non-LameXP types
 178                 MUtils::Registry::reg_key_delete(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\shell\\%2").arg((*iter), lamexpShellAction));
 179
 180                 //Remove from sub-tree too
 181                 QStringList subTypes;
 182                 if(MUtils::Registry::reg_enum_subkeys(MUtils::Registry::root_user, QString("Software\\Classes\\%1").arg(*iter), subTypes))
 183                 {
 184                         for(QStringList::ConstIterator iter2 = subTypes.constBegin(); iter2 != subTypes.constEnd(); iter2++)
 185                         {
 186                                 MUtils::Registry::reg_key_delete(MUtils::Registry::root_user, QString("Software\\Classes\\%1\\%2\\shell\\%3").arg((*iter), (*iter2), lamexpShellAction));
 187                         }
 188                 }
 189         }
 190
 191
 192         //Unregister LameXP file type
 193         MUtils::Registry::reg_key_delete(MUtils::Registry::root_user, QString("Software\\Classes\\%1").arg(lamexpFileType));
 194
 195         //Shell notification
 196         MUtils::OS::shell_change_notification();
 197 }
 198
 199 ////////////////////////////////////////////////////////////
 200 // Private Functions
 201 ////////////////////////////////////////////////////////////
 202
 203 void ShellIntegration::initializeTypes(const QString &lamexpFileType, const QString &lamexpShellAction, QStringList &nativeTypes)
 204 {
 205         nativeTypes.clear();
 206         const QString progId = "Progid";
 207
 208         //Map supported extensions to native types
 209         const QStringList &supportedExts = DecoderRegistry::getSupportedExts();
 210         for(QStringList::ConstIterator iter = supportedExts.constBegin(); iter != supportedExts.constEnd(); iter++)
 211         {
 212                 const QString currentExt = (*iter).mid(1).trimmed(); /*remove leading asterisk*/
 213                 if(currentExt.isEmpty() || (!currentExt.startsWith('.')))
 214                 {
 215                         qWarning("Invalid file extension '%s' encountered -> skipping!", currentExt);
 216                         continue;
 217                 }
 218
 219                 bool hasExistingType = false;
 220                 QString currentType;
 221                 if(MUtils::Registry::reg_key_exists(MUtils::Registry::root_classes, currentExt))
 222                 {
 223                         if(MUtils::Registry::reg_value_read(MUtils::Registry::root_classes, currentExt, QString(), currentType))
 224                         {
 225                                 currentType = QDir::toNativeSeparators(currentType);
 226                                 if((currentType.compare(lamexpFileType, Qt::CaseInsensitive) != 0) && (!nativeTypes.contains(currentType, Qt::CaseInsensitive)))
 227                                 {
 228                                         nativeTypes.append(currentType);
 229                                         hasExistingType = true;
 230                                 }
 231                         }
 232                 }
 233                 if(!hasExistingType)
 234                 {
 235                         currentType = lamexpFileType;
 236                         MUtils::Registry::reg_value_write(MUtils::Registry::root_user, QString("Software\\Classes\\%1").arg(currentExt), QString(), lamexpFileType);
 237                 }
 238
 239                 const QString userChoiceKey = QString("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\%1\\UserChoice").arg(currentExt);
 240                 if(MUtils::Registry::reg_key_exists(MUtils::Registry::root_user, userChoiceKey))
 241                 {
 242                         if(MUtils::Registry::reg_value_read(MUtils::Registry::root_user, userChoiceKey, progId, currentType))
 243                         {
 244                                 currentType = QDir::toNativeSeparators(currentType);
 245                                 if((currentType.compare(lamexpFileType, Qt::CaseInsensitive) != 0) && (!nativeTypes.contains(currentType, Qt::CaseInsensitive)))
 246                                 {
 247                                         nativeTypes.append(currentType);
 248                                 }
 249                         }
 250                 }
 251
 252                 QStringList progids;
 253                 if(MUtils::Registry::reg_enum_values(MUtils::Registry::root_user, QString("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\%1\\OpenWithProgids").arg(currentExt), progids))
 254                 {
 255                         for(QStringList::ConstIterator iter2 = progids.constBegin(); iter2 != progids.constEnd(); iter2++)
 256                         {
 257                                 currentType = QDir::toNativeSeparators(currentType);
 258                                 if((iter2->compare(lamexpFileType, Qt::CaseInsensitive) != 0) && (!nativeTypes.contains((*iter2), Qt::CaseInsensitive)))
 259                                 {
 260                                         nativeTypes.append(*iter2);
 261                                 }
 262                         }
 263                 }
 264         }
 265 }