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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <com/sun/star/beans/Optional.hpp>
+#include <com/sun/star/beans/UnknownPropertyException.hpp>
+#include <com/sun/star/beans/XPropertyChangeListener.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/XPropertySetInfo.hpp>
+#include <com/sun/star/beans/XVetoableChangeListener.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XMultiComponentFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Exception.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/uno/XCurrentContext.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/weak.hxx>
+#include <osl/file.hxx>
+#include <osl/security.hxx>
+#include <rtl/byteseq.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <tools/diagnose_ex.h>
+#include <uno/current_context.hxx>
+
+namespace {
+
+class Default:
+ public cppu::WeakImplHelper<
+ css::lang::XServiceInfo, css::beans::XPropertySet >
+{
+public:
+ Default() {}
+ Default(const Default&) = delete;
+ Default& operator=(const Default&) = delete;
+
+private:
+ virtual ~Default() override {}
+
+ virtual OUString SAL_CALL getImplementationName() override
+ { return "com.sun.star.comp.configuration.backend.DesktopBackend"; }
+
+ virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
+ { return ServiceName == getSupportedServiceNames()[0]; }
+
+ virtual css::uno::Sequence< OUString > SAL_CALL
+ getSupportedServiceNames() override
+ { return { "com.sun.star.configuration.backend.DesktopBackend" }; }
+
+ virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL
+ getPropertySetInfo() override
+ { return css::uno::Reference< css::beans::XPropertySetInfo >(); }
+
+ virtual void SAL_CALL setPropertyValue(
+ OUString const &, css::uno::Any const &) override;
+
+ virtual css::uno::Any SAL_CALL getPropertyValue(
+ OUString const & PropertyName) override;
+
+ virtual void SAL_CALL addPropertyChangeListener(
+ OUString const &,
+ css::uno::Reference< css::beans::XPropertyChangeListener > const &) override
+ {}
+
+ virtual void SAL_CALL removePropertyChangeListener(
+ OUString const &,
+ css::uno::Reference< css::beans::XPropertyChangeListener > const &) override
+ {}
+
+ virtual void SAL_CALL addVetoableChangeListener(
+ OUString const &,
+ css::uno::Reference< css::beans::XVetoableChangeListener > const &) override
+ {}
+
+ virtual void SAL_CALL removeVetoableChangeListener(
+ OUString const &,
+ css::uno::Reference< css::beans::XVetoableChangeListener > const &) override
+ {}
+};
+
+void Default::setPropertyValue(OUString const &, css::uno::Any const &)
+{
+ throw css::lang::IllegalArgumentException(
+ "setPropertyValue not supported",
+ static_cast< cppu::OWeakObject * >(this), -1);
+}
+
+OUString xdg_user_dir_lookup (const char *type, bool bAllowHomeDir)
+{
+ size_t nLenType = strlen(type);
+ char *config_home;
+ char *p;
+ bool bError = false;
+
+ osl::Security aSecurity;
+ oslFileHandle handle;
+ OUString aHomeDirURL;
+ OUString aDocumentsDirURL;
+ OUString aConfigFileURL;
+ OUStringBuffer aUserDirBuf;
+
+ if (!aSecurity.getHomeDir( aHomeDirURL ) )
+ {
+ osl::FileBase::getFileURLFromSystemPath("/tmp", aDocumentsDirURL);
+ return aDocumentsDirURL;
+ }
+
+ config_home = getenv ("XDG_CONFIG_HOME");
+ if (config_home == nullptr || config_home[0] == 0)
+ {
+ aConfigFileURL = aHomeDirURL + "/.config/user-dirs.dirs";
+ }
+ else
+ {
+ aConfigFileURL = OUString::createFromAscii(config_home) + "/user-dirs.dirs";
+ }
+
+ if(osl_File_E_None == osl_openFile(aConfigFileURL.pData, &handle, osl_File_OpenFlag_Read))
+ {
+ rtl::ByteSequence seq;
+ while (osl_File_E_None == osl_readLine(handle , reinterpret_cast<sal_Sequence **>(&seq)))
+ {
+ int relative = 0;
+ int len = seq.getLength();
+ seq.realloc(len + 1);
+ seq[len] = 0;
+
+ p = reinterpret_cast<char *>(seq.getArray());
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (strncmp (p, "XDG_", 4) != 0)
+ continue;
+ p += 4;
+ if (strncmp (p, OString(type, nLenType).toAsciiUpperCase().getStr(), nLenType) != 0)
+ continue;
+ p += nLenType;
+ if (strncmp (p, "_DIR", 4) != 0)
+ continue;
+ p += 4;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (*p != '=')
+ continue;
+ p++;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (*p != '"')
+ continue;
+ p++;
+ if (strncmp (p, "$HOME/", 6) == 0)
+ {
+ p += 6;
+ relative = 1;
+ }
+ else if (*p != '/')
+ continue;
+ if (relative)
+ {
+ aUserDirBuf = aHomeDirURL + "/";
+ }
+ else
+ {
+ aUserDirBuf.truncate();
+ }
+ while (*p && *p != '"')
+ {
+ if ((*p == '\\') && (*(p+1) != 0))
+ p++;
+ aUserDirBuf.append(static_cast<sal_Unicode>(*p++));
+ }
+ }//end of while
+ osl_closeFile(handle);
+ }
+ else
+ bError = true;
+ if (aUserDirBuf.getLength()>0 && !bError)
+ {
+ aDocumentsDirURL = aUserDirBuf.makeStringAndClear();
+ if ( bAllowHomeDir ||
+ (aDocumentsDirURL != aHomeDirURL && aDocumentsDirURL != OUStringConcatenation(aHomeDirURL + "/")) )
+ {
+ osl::Directory aDocumentsDir( aDocumentsDirURL );
+ if( osl::FileBase::E_None == aDocumentsDir.open() )
+ return aDocumentsDirURL;
+ }
+ }
+ /* Use fallbacks historical compatibility if nothing else exists */
+ return aHomeDirURL + "/" + OUString::createFromAscii(type);
+}
+
+css::uno::Any xdgDirectoryIfExists(char const * type, bool bAllowHomeDir) {
+ auto url = xdg_user_dir_lookup(type, bAllowHomeDir);
+ return css::uno::Any(
+ osl::Directory(url).open() == osl::FileBase::E_None
+ ? css::beans::Optional<css::uno::Any>(true, css::uno::Any(url))
+ : css::beans::Optional<css::uno::Any>(false, css::uno::Any()));
+}
+
+css::uno::Any Default::getPropertyValue(OUString const & PropertyName)
+{
+ if (PropertyName == "TemplatePathVariable")
+ {
+ // Never pick up the HOME directory as the default location of user's templates
+ return xdgDirectoryIfExists("Templates", false);
+ }
+
+ if (PropertyName == "WorkPathVariable")
+ {
+ return xdgDirectoryIfExists("Documents", true);
+ }
+
+ if ( PropertyName == "EnableATToolSupport" ||
+ PropertyName == "ExternalMailer" ||
+ PropertyName == "SourceViewFontHeight" ||
+ PropertyName == "SourceViewFontName" ||
+ PropertyName == "ooInetFTPProxyName" ||
+ PropertyName == "ooInetFTPProxyPort" ||
+ PropertyName == "ooInetHTTPProxyName" ||
+ PropertyName == "ooInetHTTPProxyPort" ||
+ PropertyName == "ooInetHTTPSProxyName" ||
+ PropertyName == "ooInetHTTPSProxyPort" ||
+ PropertyName == "ooInetNoProxy" ||
+ PropertyName == "ooInetProxyType" ||
+ PropertyName == "givenname" ||
+ PropertyName == "sn" )
+ {
+ return css::uno::Any(css::beans::Optional< css::uno::Any >());
+ }
+
+ throw css::beans::UnknownPropertyException(
+ PropertyName, static_cast< cppu::OWeakObject * >(this));
+}
+
+css::uno::Reference< css::uno::XInterface > createBackend(
+ css::uno::Reference< css::uno::XComponentContext > const & context,
+ OUString const & name)
+{
+ try {
+ return css::uno::Reference< css::lang::XMultiComponentFactory >(
+ context->getServiceManager(), css::uno::UNO_SET_THROW)->
+ createInstanceWithContext(name, context);
+ } catch (css::uno::RuntimeException &) {
+ // Assuming these exceptions are real errors:
+ throw;
+ } catch (const css::uno::Exception &) {
+ // Assuming these exceptions indicate that the service is not installed:
+ TOOLS_WARN_EXCEPTION("shell", "createInstance(" << name << ") failed");
+ return css::uno::Reference< css::uno::XInterface >();
+ }
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+shell_DesktopBackend_get_implementation(
+ css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
+{
+ OUString desktop;
+ css::uno::Reference< css::uno::XCurrentContext > current(
+ css::uno::getCurrentContext());
+ if (current.is()) {
+ current->getValueByName("system.desktop-environment") >>= desktop;
+ }
+
+ // Fall back to the default if the specific backend is not available:
+ css::uno::Reference< css::uno::XInterface > backend;
+ if (desktop == "PLASMA5")
+ backend = createBackend(context,
+ "com.sun.star.configuration.backend.KF5Backend");
+ if (!backend)
+ backend = static_cast< cppu::OWeakObject * >(new Default);
+ backend->acquire();
+ return backend.get();
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */