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Shorten LocalPeer socket names

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On most systems supporting Unix sockets, the maximum length of a socket name is quite low (e.g. on macOS 104 characters and on Linux 108). If the name is too long, the sockets will not work and thus sending messages to a running instance of the launcher will not work.

Signed-off-by: Kenneth Chew <79120643+kthchew@users.noreply.github.com>
This commit is contained in:
Kenneth Chew
2025-04-13 00:50:19 -04:00
parent a8e5e8dcfc
commit 7d4034cfa5
2 changed files with 16 additions and 9 deletions
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8
libraries/LocalPeer/src/LocalPeer.cpp
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@@ -76,7 +76,7 @@ ApplicationId ApplicationId::fromTraditionalApp()
prefix.truncate(6);
QByteArray idc = protoId.toUtf8();
quint16 idNum = qChecksum(idc.constData(), idc.size());
auto socketName = QLatin1String("qtsingleapp-") + prefix + QLatin1Char('-') + QString::number(idNum, 16);
auto socketName = QLatin1String("pl") + prefix + QLatin1Char('-') + QString::number(idNum, 16).left(12);
#if defined(Q_OS_WIN)
if (!pProcessIdToSessionId) {
QLibrary lib("kernel32");
@@ -98,12 +98,12 @@ ApplicationId ApplicationId::fromPathAndVersion(const QString& dataPath, const Q
QCryptographicHash shasum(QCryptographicHash::Algorithm::Sha1);
QString result = dataPath + QLatin1Char('-') + version;
shasum.addData(result.toUtf8());
return ApplicationId(QLatin1String("qtsingleapp-") + QString::fromLatin1(shasum.result().toHex()));
return ApplicationId(QLatin1String("pl") + QString::fromLatin1(shasum.result().toHex()).left(12));
}
ApplicationId ApplicationId::fromCustomId(const QString& id)
{
return ApplicationId(QLatin1String("qtsingleapp-") + id);
return ApplicationId(QLatin1String("pl") + id);
}
ApplicationId ApplicationId::fromRawString(const QString& id)
@@ -139,7 +139,7 @@ bool LocalPeer::isClient()
#if defined(Q_OS_UNIX)
// ### Workaround
if (!res && server->serverError() == QAbstractSocket::AddressInUseError) {
QFile::remove(QDir::cleanPath(QDir::tempPath()) + QLatin1Char('/') + socketName);
QLocalServer::removeServer(socketName);
res = server->listen(socketName);
}
#endif