summaryrefslogtreecommitdiffstats
path: root/application/MultiMC.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'application/MultiMC.cpp')
-rw-r--r--application/MultiMC.cpp340
1 files changed, 27 insertions, 313 deletions
diff --git a/application/MultiMC.cpp b/application/MultiMC.cpp
index c102e198..64c380ec 100644
--- a/application/MultiMC.cpp
+++ b/application/MultiMC.cpp
@@ -73,6 +73,8 @@
#include <stdio.h>
#endif
+static const QLatin1String liveCheckFile("live.check");
+
using namespace Commandline;
MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
@@ -132,6 +134,9 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
parser.addOption("launch");
parser.addShortOpt("launch", 'l');
parser.addDocumentation("launch", "launch the specified instance (by instance ID)");
+ // --alive
+ parser.addSwitch("alive");
+ parser.addDocumentation("alive", "write a small '" + liveCheckFile + "' file after MultiMC starts");
// parse the arguments
try
@@ -165,6 +170,7 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
}
}
m_instanceIdToLaunch = args["launch"].toString();
+ m_liveCheck = args["alive"].toBool();
QString origcwdPath = QDir::currentPath();
QString binPath = applicationDirPath();
@@ -242,6 +248,27 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
qDebug() << "ID of instance to launch : " << m_instanceIdToLaunch;
}
+ do // once
+ {
+ if(m_liveCheck)
+ {
+ QFile check(liveCheckFile);
+ if(!check.open(QIODevice::WriteOnly | QIODevice::Truncate))
+ {
+ qWarning() << "Could not open" << liveCheckFile << "for writing!";
+ break;
+ }
+ auto payload = appID.toString().toUtf8();
+ if(check.write(payload) != payload.size())
+ {
+ qWarning() << "Could not write into" << liveCheckFile;
+ check.remove();
+ break;
+ }
+ check.close();
+ }
+ } while(false);
+
// load settings
initGlobalSettings();
@@ -697,319 +724,6 @@ std::shared_ptr<JavaInstallList> MultiMC::javalist()
return m_javalist;
}
-// from <sys/stat.h>
-#ifndef S_IRUSR
-#define __S_IREAD 0400 /* Read by owner. */
-#define __S_IWRITE 0200 /* Write by owner. */
-#define __S_IEXEC 0100 /* Execute by owner. */
-#define S_IRUSR __S_IREAD /* Read by owner. */
-#define S_IWUSR __S_IWRITE /* Write by owner. */
-#define S_IXUSR __S_IEXEC /* Execute by owner. */
-
-#define S_IRGRP (S_IRUSR >> 3) /* Read by group. */
-#define S_IWGRP (S_IWUSR >> 3) /* Write by group. */
-#define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */
-
-#define S_IROTH (S_IRGRP >> 3) /* Read by others. */
-#define S_IWOTH (S_IWGRP >> 3) /* Write by others. */
-#define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */
-#endif
-static QFile::Permissions unixModeToPermissions(const int mode)
-{
- QFile::Permissions perms;
-
- if (mode & S_IRUSR)
- {
- perms |= QFile::ReadUser;
- }
- if (mode & S_IWUSR)
- {
- perms |= QFile::WriteUser;
- }
- if (mode & S_IXUSR)
- {
- perms |= QFile::ExeUser;
- }
-
- if (mode & S_IRGRP)
- {
- perms |= QFile::ReadGroup;
- }
- if (mode & S_IWGRP)
- {
- perms |= QFile::WriteGroup;
- }
- if (mode & S_IXGRP)
- {
- perms |= QFile::ExeGroup;
- }
-
- if (mode & S_IROTH)
- {
- perms |= QFile::ReadOther;
- }
- if (mode & S_IWOTH)
- {
- perms |= QFile::WriteOther;
- }
- if (mode & S_IXOTH)
- {
- perms |= QFile::ExeOther;
- }
- return perms;
-}
-
-void MultiMC::installUpdates(const QString updateFilesDir, GoUpdate::OperationList operations)
-{
- qint64 pid = -1;
- QStringList args;
- bool started = false;
-
- qDebug() << "Installing updates.";
-#ifdef Q_OS_WIN
- QString finishCmd = applicationFilePath();
-#elif defined Q_OS_LINUX
- QString finishCmd = FS::PathCombine(root(), "MultiMC");
-#elif defined Q_OS_MAC
- QString finishCmd = applicationFilePath();
-#else
-#error Unsupported operating system.
-#endif
-
- QString backupPath = FS::PathCombine(root(), "update", "backup");
- QDir origin(root());
-
- // clean up the backup folder. it should be empty before we start
- if(!FS::deletePath(backupPath))
- {
- qWarning() << "couldn't remove previous backup folder" << backupPath;
- }
- // and it should exist.
- if(!FS::ensureFolderPathExists(backupPath))
- {
- qWarning() << "couldn't create folder" << backupPath;
- return;
- }
-
- struct BackupEntry
- {
- QString orig;
- QString backup;
- };
- enum Failure
- {
- Replace,
- Delete,
- Start,
- Nothing
- } failedOperationType = Nothing;
- QString failedFile;
-
- QList <BackupEntry> backups;
- QList <BackupEntry> trashcan;
-
- bool useXPHack = false;
- QString exePath;
- QString exeOrigin;
- QString exeBackup;
-
- // perform the update operations
- for(auto op: operations)
- {
- switch(op.type)
- {
- // replace = move original out to backup, if it exists, move the new file in its place
- case GoUpdate::Operation::OP_REPLACE:
- {
-#ifdef Q_OS_WIN32
- // hack for people renaming the .exe because ... reasons :)
- if(op.dest == "MultiMC.exe")
- {
- op.dest = QFileInfo(applicationFilePath()).fileName();
- }
-#endif
- QFileInfo replaced (FS::PathCombine(root(), op.dest));
-#ifdef Q_OS_WIN32
- if(QSysInfo::windowsVersion() < QSysInfo::WV_VISTA)
- {
- if(replaced.fileName() == "MultiMC.exe")
- {
- QDir rootDir(root());
- exeOrigin = rootDir.relativeFilePath(op.file);
- exePath = rootDir.relativeFilePath(op.dest);
- exeBackup = rootDir.relativeFilePath(FS::PathCombine(backupPath, replaced.fileName()));
- useXPHack = true;
- continue;
- }
- }
-#endif
- if(replaced.exists())
- {
- QString backupName = op.dest;
- backupName.replace('/', '_');
- QString backupFilePath = FS::PathCombine(backupPath, backupName);
- if(!QFile::rename(replaced.absoluteFilePath(), backupFilePath))
- {
- qWarning() << "Couldn't move:" << replaced.absoluteFilePath() << "to" << backupFilePath;
- failedOperationType = Replace;
- failedFile = op.dest;
- goto FAILED;
- }
- BackupEntry be;
- be.orig = replaced.absoluteFilePath();
- be.backup = backupFilePath;
- backups.append(be);
- }
- // make sure the folder we are putting this into exists
- if(!FS::ensureFilePathExists(replaced.absoluteFilePath()))
- {
- qWarning() << "REPLACE: Couldn't create folder:" << replaced.absoluteFilePath();
- failedOperationType = Replace;
- failedFile = op.dest;
- goto FAILED;
- }
- // now move the new file in
- if(!QFile::rename(op.file, replaced.absoluteFilePath()))
- {
- qWarning() << "REPLACE: Couldn't move:" << op.file << "to" << replaced.absoluteFilePath();
- failedOperationType = Replace;
- failedFile = op.dest;
- goto FAILED;
- }
- QFile::setPermissions(replaced.absoluteFilePath(), unixModeToPermissions(op.mode));
- }
- break;
- // delete = move original to backup
- case GoUpdate::Operation::OP_DELETE:
- {
- QString origFilePath = FS::PathCombine(root(), op.file);
- if(QFile::exists(origFilePath))
- {
- QString backupName = op.file;
- backupName.replace('/', '_');
- QString trashFilePath = FS::PathCombine(backupPath, backupName);
-
- if(!QFile::rename(origFilePath, trashFilePath))
- {
- qWarning() << "DELETE: Couldn't move:" << op.file << "to" << trashFilePath;
- failedFile = op.file;
- failedOperationType = Delete;
- goto FAILED;
- }
- BackupEntry be;
- be.orig = origFilePath;
- be.backup = trashFilePath;
- trashcan.append(be);
- }
- }
- break;
- }
- }
-
- // try to start the new binary
- args = qApp->arguments();
- args.removeFirst();
-
- // on old Windows, do insane things... no error checking here, this is just to have something.
- if(useXPHack)
- {
- QString script;
- auto nativePath = QDir::toNativeSeparators(exePath);
- auto nativeOriginPath = QDir::toNativeSeparators(exeOrigin);
- auto nativeBackupPath = QDir::toNativeSeparators(exeBackup);
-
- // so we write this vbscript thing...
- QTextStream out(&script);
- out << "WScript.Sleep 1000\n";
- out << "Set fso=CreateObject(\"Scripting.FileSystemObject\")\n";
- out << "Set shell=CreateObject(\"WScript.Shell\")\n";
- out << "fso.MoveFile \"" << nativePath << "\", \"" << nativeBackupPath << "\"\n";
- out << "fso.MoveFile \"" << nativeOriginPath << "\", \"" << nativePath << "\"\n";
- out << "shell.Run \"" << nativePath << "\"\n";
-
- QString scriptPath = FS::PathCombine(root(), "update", "update.vbs");
-
- // we save it
- QFile scriptFile(scriptPath);
- scriptFile.open(QIODevice::WriteOnly);
- scriptFile.write(script.toLocal8Bit().replace("\n", "\r\n"));
- scriptFile.close();
-
- // we run it
- started = QProcess::startDetached("wscript", {scriptPath}, root());
-
- // and we quit. conscious thought.
- qApp->quit();
- return;
- }
- started = QProcess::startDetached(finishCmd, args, QDir::currentPath(), &pid);
- // failed to start... ?
- if(!started || pid == -1)
- {
- qWarning() << "Couldn't start new process properly!";
- failedOperationType = Start;
- goto FAILED;
- }
- origin.rmdir(updateFilesDir);
- qApp->quit();
- return;
-
-FAILED:
- qWarning() << "Update failed!";
- bool revertOK = true;
- // if the above failed, roll back changes
- for(auto backup:backups)
- {
- qWarning() << "restoring" << backup.orig << "from" << backup.backup;
- if(!QFile::remove(backup.orig))
- {
- revertOK = false;
- qWarning() << "removing new" << backup.orig << "failed!";
- continue;
- }
-
- if(!QFile::rename(backup.backup, backup.orig))
- {
- revertOK = false;
- qWarning() << "restoring" << backup.orig << "failed!";
- }
- }
- for(auto backup:trashcan)
- {
- qWarning() << "restoring" << backup.orig << "from" << backup.backup;
- if(!QFile::rename(backup.backup, backup.orig))
- {
- revertOK = false;
- qWarning() << "restoring" << backup.orig << "failed!";
- }
- }
- QString msg;
- if(!revertOK)
- {
- msg = tr("The update failed and then the update revert failed too.\n"
- "You will have to repair MultiMC manually.\n"
- "Please let us know why and how this happened.").arg(failedFile);
- }
- else switch (failedOperationType)
- {
- case Replace:
- msg = tr("Couldn't replace file %1. Changes were reverted.\n"
- "See the MultiMC log file for details.").arg(failedFile);
- break;
- case Delete:
- msg = tr("Couldn't remove file %1. Changes were reverted.\n"
- "See the MultiMC log file for details.").arg(failedFile);
- break;
- case Start:
- msg = tr("The new version didn't start and the update was rolled back.");
- break;
- case Nothing:
- default:
- return;
- }
- QMessageBox::critical(nullptr, tr("Update failed!"), msg);
-}
-
std::vector<ITheme *> MultiMC::getValidApplicationThemes()
{
std::vector<ITheme *> ret;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 17:21:40 +0000