112 lines
4.5 KiB
Diff
112 lines
4.5 KiB
Diff
From 2c3762feddf7e66cf6b64d9058f625a715694a00 Mon Sep 17 00:00:00 2001
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From: Kai Uwe Broulik <kde@privat.broulik.de>
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Date: Wed, 7 Aug 2019 09:47:46 +0200
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Subject: Security: remove support for $(...) in config keys with [$e] marker.
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It is very unclear at this point what a valid use case for this feature
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would possibly be. The old documentation only mentions $(hostname) as
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an example, which can be done with $HOSTNAME instead.
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Note that $(...) is still supported in Exec lines of desktop files,
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this does not require [$e] anyway (and actually works better without it,
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otherwise the $ signs need to be doubled to obey kconfig $e escaping rules...).
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Thanks to Fabian Vogt for testing.
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(This is a backport of KDE Frameworks 5 kconfig patch to kdelibs)
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Differential Revision: https://phabricator.kde.org/D22989
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---
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kdecore/config/kconfig.cpp | 32 +-------------------------------
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kdecore/doc/README.kiosk | 12 ------------
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kdecore/tests/kconfigtest.cpp | 6 +-----
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3 files changed, 2 insertions(+), 48 deletions(-)
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diff --git a/kdecore/config/kconfig.cpp b/kdecore/config/kconfig.cpp
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index 7ea26a5..b30584b 100644
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--- a/kdecore/config/kconfig.cpp
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+++ b/kdecore/config/kconfig.cpp
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@@ -160,37 +160,7 @@ QString KConfigPrivate::expandString(const QString& value)
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int nDollarPos = aValue.indexOf( QLatin1Char('$') );
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while( nDollarPos != -1 && nDollarPos+1 < aValue.length()) {
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// there is at least one $
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- if( aValue[nDollarPos+1] == QLatin1Char('(') ) {
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- int nEndPos = nDollarPos+1;
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- // the next character is not $
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- while ( (nEndPos <= aValue.length()) && (aValue[nEndPos]!=QLatin1Char(')')) )
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- nEndPos++;
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- nEndPos++;
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- QString cmd = aValue.mid( nDollarPos+2, nEndPos-nDollarPos-3 );
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-
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- QString result;
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- QByteArray oldpath = qgetenv( "PATH" );
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- QByteArray newpath;
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- if (KGlobal::hasMainComponent()) {
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- newpath = QFile::encodeName(KGlobal::dirs()->resourceDirs("exe").join(QChar::fromLatin1(KPATH_SEPARATOR)));
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- if (!newpath.isEmpty() && !oldpath.isEmpty())
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- newpath += KPATH_SEPARATOR;
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- }
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- newpath += oldpath;
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- setenv( "PATH", newpath, 1/*overwrite*/ );
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-// FIXME: wince does not have pipes
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-#ifndef _WIN32_WCE
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- FILE *fs = popen(QFile::encodeName(cmd).data(), "r");
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- if (fs) {
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- QTextStream ts(fs, QIODevice::ReadOnly);
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- result = ts.readAll().trimmed();
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- pclose(fs);
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- }
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-#endif
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- setenv( "PATH", oldpath, 1/*overwrite*/ );
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- aValue.replace( nDollarPos, nEndPos-nDollarPos, result );
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- nDollarPos += result.length();
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- } else if( aValue[nDollarPos+1] != QLatin1Char('$') ) {
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+ if( aValue[nDollarPos+1] != QLatin1Char('$') ) {
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int nEndPos = nDollarPos+1;
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// the next character is not $
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QString aVarName;
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diff --git a/kdecore/doc/README.kiosk b/kdecore/doc/README.kiosk
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index b95002d..d902c61 100644
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--- a/kdecore/doc/README.kiosk
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+++ b/kdecore/doc/README.kiosk
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@@ -640,18 +640,6 @@ The following syntax is also supported:
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Name[$ei]=${USER}
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-Shell Commands in KDE config files.
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-===================================
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-
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-Since KDE-3.1 arbitrary entries in configuration files can contain shell
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-commands. This way the value of a configuration entry can be determined
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-dynamically at runtime. In order to use this the entry must be marked
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-with [$e].
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-
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-Example:
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-Host[$e]=$(hostname)
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-
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-
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KDE Kiosk Application API
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==========================
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diff --git a/kdecore/tests/kconfigtest.cpp b/kdecore/tests/kconfigtest.cpp
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index 78e6ad1..37ea3c2 100644
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--- a/kdecore/tests/kconfigtest.cpp
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+++ b/kdecore/tests/kconfigtest.cpp
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@@ -479,12 +479,8 @@ void KConfigTest::testPath()
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QCOMPARE(group.readPathEntry("withBraces", QString()), QString("file://" + HOMEPATH) );
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QVERIFY(group.hasKey("URL"));
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QCOMPARE(group.readEntry("URL", QString()), QString("file://" + HOMEPATH) );
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-#if !defined(Q_OS_WIN32) && !defined(Q_OS_MAC)
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- // I don't know if this will work on windows
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- // This test hangs on OS X
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QVERIFY(group.hasKey("hostname"));
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- QCOMPARE(group.readEntry("hostname", QString()), QHostInfo::localHostName());
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-#endif
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+ QCOMPARE(group.readEntry("hostname", QString()), QString("(hostname)")); // the $ got removed because empty var name
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QVERIFY(group.hasKey("noeol"));
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QCOMPARE(group.readEntry("noeol", QString()), QString("foo"));
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}
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--
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cgit v1.1
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