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diff --git a/include/ucbhelper/proxydecider.hxx b/include/ucbhelper/proxydecider.hxx
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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 .
+ */
+
+#ifndef INCLUDED_UCBHELPER_PROXYDECIDER_HXX
+#define INCLUDED_UCBHELPER_PROXYDECIDER_HXX
+
+#include <rtl/ustring.hxx>
+#include <rtl/ref.hxx>
+#include <ucbhelper/ucbhelperdllapi.h>
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::uno { template <class interface_type> class Reference; }
+
+namespace ucbhelper
+{
+
+/**
+ * This struct describes a proxy server.
+ */
+struct InternetProxyServer
+{
+    /**
+      * The name of the proxy server.
+      */
+    OUString aName;
+
+    /**
+      * The port of the proxy server.
+      */
+    sal_Int32 nPort;
+
+    /**
+      * Constructor.
+      */
+    InternetProxyServer() : nPort( -1 ) {}
+};
+
+namespace proxydecider_impl { class InternetProxyDecider_Impl; }
+
+/**
+ * This class is able to decide whether and which internet proxy server is to
+ * be used to access a given URI.
+ *
+ * The implementation reads the internet proxy settings from Office
+ * configuration. It listens for configuration changes and adapts itself
+ * accordingly. Because configuration data can change during runtime clients
+ * should not cache results obtained from InternetProxyDecider instances. One
+ * instance should be kept to be queried multiple times instead.
+ */
+class UCBHELPER_DLLPUBLIC InternetProxyDecider
+{
+public:
+    /**
+      * Constructor.
+      *
+      * Note: Every instance should be held alive as long as possible because
+      *       because construction is quite expensive.
+      *
+      * @param rxSMgr is a Service Manager.
+      */
+    InternetProxyDecider( const css::uno::Reference< css::uno::XComponentContext >& rxContext );
+
+    /**
+      * Destructor.
+      */
+    ~InternetProxyDecider();
+
+    /**
+      * Informs whether a proxy server should be used.
+      *
+      * @param rProtocol contains the internet protocol to be used to
+      *         access the server (i.e. "ftp", "http"). The protocol string
+      *         is handled case-insensitive and must not be empty.
+      * @param rHost contains the name of the server that should be accessed.
+      *         This parameter might be left empty. In this case the
+      *         implementation will return whether a proxy is configured
+      *         for the given protocol.
+      * @param nPort contains the port of the server that should be accessed.
+      *         If host is not empty this parameter must always contain a valid
+      *         port number, for instance the default port for the requested
+      *         protocol(i.e. 80 or http).
+      * @return true if a proxy server should be used, false otherwise.
+      */
+    bool
+    shouldUseProxy( const OUString & rProtocol,
+                    const OUString & rHost,
+                    sal_Int32 nPort ) const;
+
+    /**
+      * Returns the proxy server to be used.
+      *
+      * @param rProtocol contains the internet protocol to be used to
+      *         access the server (i.e. "ftp", "http"). The protocol string
+      *         is handled case-insensitive and must not be empty.
+      * @param rHost contains the name of the server that should be accessed.
+      *         This parameter might be left empty. In this case the
+      *         implementation will return the proxy that is configured
+      *         for the given protocol.
+      * @param nPort contains the port of the server that should be accessed.
+      *         If host is not empty this parameter must always contain a valid
+      *         port number, for instance the default port for the requested
+      *         protocol(i.e. 80 or http).
+      * @return a InternetProxyServer struct. If member aName of the
+      *         InternetProxyServer is empty no proxy server is to be used.
+      */
+    InternetProxyServer
+    getProxy( const OUString & rProtocol,
+              const OUString & rHost,
+              sal_Int32 nPort ) const;
+
+private:
+    rtl::Reference<proxydecider_impl::InternetProxyDecider_Impl> m_xImpl;
+};
+
+} // namespace ucbhelper
+
+#endif /* ! INCLUDED_UCBHELPER_PROXYDECIDER_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */