801 lines
24 KiB
C++
801 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <utility>
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#include <vector>
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#include <list>
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#include <osl/diagnose.h>
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#include <osl/mutex.hxx>
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#include <rtl/ref.hxx>
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#include <osl/socket.hxx>
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#include <rtl/ustrbuf.hxx>
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#include <com/sun/star/container/XNameAccess.hpp>
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#include <com/sun/star/configuration/theDefaultProvider.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <com/sun/star/util/XChangesListener.hpp>
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#include <com/sun/star/util/XChangesNotifier.hpp>
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#include <cppuhelper/implbase.hxx>
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#include "ucbhelper/proxydecider.hxx"
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using namespace com::sun::star;
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using namespace ucbhelper;
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#define CONFIG_ROOT_KEY "org.openoffice.Inet/Settings"
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#define PROXY_TYPE_KEY "ooInetProxyType"
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#define NO_PROXY_LIST_KEY "ooInetNoProxy"
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#define HTTP_PROXY_NAME_KEY "ooInetHTTPProxyName"
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#define HTTP_PROXY_PORT_KEY "ooInetHTTPProxyPort"
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#define HTTPS_PROXY_NAME_KEY "ooInetHTTPSProxyName"
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#define HTTPS_PROXY_PORT_KEY "ooInetHTTPSProxyPort"
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#define FTP_PROXY_NAME_KEY "ooInetFTPProxyName"
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#define FTP_PROXY_PORT_KEY "ooInetFTPProxyPort"
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namespace ucbhelper
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{
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namespace proxydecider_impl
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{
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// A simple case ignoring wildcard matcher.
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class WildCard
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{
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private:
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OString m_aWildString;
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public:
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explicit WildCard( const OUString& rWildCard )
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: m_aWildString(
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OUStringToOString(
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rWildCard, RTL_TEXTENCODING_UTF8 ).toAsciiLowerCase() ) {}
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bool Matches( const OUString & rStr ) const;
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};
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typedef std::pair< WildCard, WildCard > NoProxyListEntry;
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class HostnameCache
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{
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typedef std::pair< OUString, OUString > HostListEntry;
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std::list< HostListEntry > m_aHostList;
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sal_uInt32 m_nCapacity;
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public:
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explicit HostnameCache()
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: m_nCapacity( 256 ) {}
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bool get( const OUString & rKey, OUString & rValue ) const
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{
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std::list< HostListEntry >::const_iterator it
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= m_aHostList.begin();
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const std::list< HostListEntry >::const_iterator end
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= m_aHostList.end();
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while ( it != end )
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{
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if ( (*it).first == rKey )
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{
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rValue = (*it).second;
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return true;
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}
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++it;
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}
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return false;
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}
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void put( const OUString & rKey, const OUString & rValue )
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{
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if ( m_aHostList.size() == m_nCapacity )
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m_aHostList.resize( m_nCapacity / 2 );
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m_aHostList.push_front( HostListEntry( rKey, rValue ) );
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}
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};
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class InternetProxyDecider_Impl :
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public cppu::WeakImplHelper< util::XChangesListener >
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{
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mutable osl::Mutex m_aMutex;
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InternetProxyServer m_aHttpProxy;
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InternetProxyServer m_aHttpsProxy;
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InternetProxyServer m_aFtpProxy;
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const InternetProxyServer m_aEmptyProxy;
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sal_Int32 m_nProxyType;
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uno::Reference< util::XChangesNotifier > m_xNotifier;
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std::vector< NoProxyListEntry > m_aNoProxyList;
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mutable HostnameCache m_aHostnames;
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private:
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bool shouldUseProxy( const OUString & rHost,
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sal_Int32 nPort,
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bool bUseFullyQualified ) const;
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public:
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explicit InternetProxyDecider_Impl(
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const uno::Reference< uno::XComponentContext >& rxContext );
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void dispose();
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const InternetProxyServer & getProxy( const OUString & rProtocol,
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const OUString & rHost,
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sal_Int32 nPort ) const;
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// XChangesListener
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virtual void SAL_CALL changesOccurred( const util::ChangesEvent& Event )
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throw( uno::RuntimeException, std::exception ) override;
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// XEventListener ( base of XChangesLisetenr )
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virtual void SAL_CALL disposing( const lang::EventObject& Source )
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throw( uno::RuntimeException, std::exception ) override;
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private:
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void setNoProxyList( const OUString & rNoProxyList );
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};
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// WildCard Implementation.
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bool WildCard::Matches( const OUString& rString ) const
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{
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OString aString
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= OUStringToOString(
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rString, RTL_TEXTENCODING_UTF8 ).toAsciiLowerCase();
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const char * pStr = aString.getStr();
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const char * pWild = m_aWildString.getStr();
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int pos = 0;
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int flag = 0;
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while ( *pWild || flag )
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{
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switch ( *pWild )
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{
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case '?':
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if ( *pStr == '\0' )
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return false;
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break;
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default:
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if ( ( *pWild == '\\' ) && ( ( *( pWild + 1 ) == '?' )
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|| ( *( pWild + 1 ) == '*') ) )
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pWild++;
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if ( *pWild != *pStr )
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if ( !pos )
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return false;
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else
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pWild += pos;
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else
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break;
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SAL_FALLTHROUGH;
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case '*':
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while ( *pWild == '*' )
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pWild++;
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if ( *pWild == '\0' )
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return true;
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flag = 1;
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pos = 0;
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if ( *pStr == '\0' )
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return ( *pWild == '\0' );
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while ( *pStr && *pStr != *pWild )
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{
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if ( *pWild == '?' ) {
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pWild++;
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while ( *pWild == '*' )
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pWild++;
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}
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pStr++;
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if ( *pStr == '\0' )
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return ( *pWild == '\0' );
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}
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break;
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}
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if ( *pWild != '\0' )
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pWild++;
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if ( *pStr != '\0' )
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pStr++;
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else
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flag = 0;
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if ( flag )
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pos--;
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}
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return ( *pStr == '\0' ) && ( *pWild == '\0' );
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}
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bool getConfigStringValue(
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const uno::Reference< container::XNameAccess > & xNameAccess,
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const char * key,
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OUString & value )
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{
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try
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{
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if ( !( xNameAccess->getByName( OUString::createFromAscii( key ) )
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>>= value ) )
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{
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OSL_FAIL( "InternetProxyDecider - "
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"Error getting config item value!" );
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return false;
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}
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}
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catch ( lang::WrappedTargetException const & )
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{
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return false;
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}
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catch ( container::NoSuchElementException const & )
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{
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return false;
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}
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return true;
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}
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bool getConfigInt32Value(
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const uno::Reference< container::XNameAccess > & xNameAccess,
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const char * key,
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sal_Int32 & value )
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{
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try
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{
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uno::Any aValue = xNameAccess->getByName(
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OUString::createFromAscii( key ) );
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if ( aValue.hasValue() && !( aValue >>= value ) )
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{
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OSL_FAIL( "InternetProxyDecider - "
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"Error getting config item value!" );
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return false;
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}
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}
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catch ( lang::WrappedTargetException const & )
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{
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return false;
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}
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catch ( container::NoSuchElementException const & )
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{
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return false;
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}
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return true;
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}
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// InternetProxyDecider_Impl Implementation.
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InternetProxyDecider_Impl::InternetProxyDecider_Impl(
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const uno::Reference< uno::XComponentContext >& rxContext )
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: m_nProxyType( 0 ),
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m_aHostnames()
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{
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try
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{
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// Read proxy configuration from config db.
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uno::Reference< lang::XMultiServiceFactory > xConfigProv =
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configuration::theDefaultProvider::get( rxContext );
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uno::Sequence< uno::Any > aArguments( 1 );
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aArguments[ 0 ] <<= OUString( CONFIG_ROOT_KEY );
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uno::Reference< uno::XInterface > xInterface(
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xConfigProv->createInstanceWithArguments(
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"com.sun.star.configuration.ConfigurationAccess",
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aArguments ) );
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OSL_ENSURE( xInterface.is(),
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"InternetProxyDecider - No config access!" );
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if ( xInterface.is() )
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{
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uno::Reference< container::XNameAccess > xNameAccess(
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xInterface, uno::UNO_QUERY );
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OSL_ENSURE( xNameAccess.is(),
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"InternetProxyDecider - No name access!" );
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if ( xNameAccess.is() )
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{
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// *** Proxy type ***
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getConfigInt32Value(
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xNameAccess, PROXY_TYPE_KEY, m_nProxyType );
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// *** No proxy list ***
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OUString aNoProxyList;
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getConfigStringValue(
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xNameAccess, NO_PROXY_LIST_KEY, aNoProxyList );
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setNoProxyList( aNoProxyList );
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// *** HTTP ***
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getConfigStringValue(
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xNameAccess, HTTP_PROXY_NAME_KEY, m_aHttpProxy.aName );
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m_aHttpProxy.nPort = -1;
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getConfigInt32Value(
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xNameAccess, HTTP_PROXY_PORT_KEY, m_aHttpProxy.nPort );
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if ( m_aHttpProxy.nPort == -1 )
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m_aHttpProxy.nPort = 80; // standard HTTP port.
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// *** HTTPS ***
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getConfigStringValue(
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xNameAccess, HTTPS_PROXY_NAME_KEY, m_aHttpsProxy.aName );
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m_aHttpsProxy.nPort = -1;
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getConfigInt32Value(
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xNameAccess, HTTPS_PROXY_PORT_KEY, m_aHttpsProxy.nPort );
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if ( m_aHttpsProxy.nPort == -1 )
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m_aHttpsProxy.nPort = 443; // standard HTTPS port.
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// *** FTP ***
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getConfigStringValue(
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xNameAccess, FTP_PROXY_NAME_KEY, m_aFtpProxy.aName );
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m_aFtpProxy.nPort = -1;
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getConfigInt32Value(
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xNameAccess, FTP_PROXY_PORT_KEY, m_aFtpProxy.nPort );
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}
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// Register as listener for config changes.
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m_xNotifier.set( xInterface, uno::UNO_QUERY );
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OSL_ENSURE( m_xNotifier.is(),
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"InternetProxyDecider - No notifier!" );
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if ( m_xNotifier.is() )
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m_xNotifier->addChangesListener( this );
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}
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}
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catch ( uno::Exception const & )
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{
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// createInstance, createInstanceWithArguments
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OSL_FAIL( "InternetProxyDecider - Exception!" );
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}
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}
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void InternetProxyDecider_Impl::dispose()
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{
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uno::Reference< util::XChangesNotifier > xNotifier;
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if ( m_xNotifier.is() )
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{
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osl::Guard< osl::Mutex > aGuard( m_aMutex );
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if ( m_xNotifier.is() )
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{
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xNotifier = m_xNotifier;
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m_xNotifier.clear();
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}
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}
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// Do this unguarded!
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if ( xNotifier.is() )
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xNotifier->removeChangesListener( this );
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}
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bool InternetProxyDecider_Impl::shouldUseProxy( const OUString & rHost,
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sal_Int32 nPort,
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bool bUseFullyQualified ) const
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{
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OUStringBuffer aBuffer;
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if ( ( rHost.indexOf( ':' ) != -1 ) &&
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( rHost[ 0 ] != '[' ) )
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{
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// host is given as numeric IPv6 address
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aBuffer.append( "[" );
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aBuffer.append( rHost );
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aBuffer.append( "]" );
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}
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else
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{
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// host is given either as numeric IPv4 address or non-numeric hostname
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aBuffer.append( rHost );
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}
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aBuffer.append( ':' );
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aBuffer.append( OUString::number( nPort ) );
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const OUString aHostAndPort( aBuffer.makeStringAndClear() );
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std::vector< NoProxyListEntry >::const_iterator it
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= m_aNoProxyList.begin();
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const std::vector< NoProxyListEntry >::const_iterator end
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= m_aNoProxyList.end();
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while ( it != end )
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{
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if ( bUseFullyQualified )
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{
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if ( (*it).second.Matches( aHostAndPort ) )
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return false;
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}
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else
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{
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if ( (*it).first.Matches( aHostAndPort ) )
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return false;
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}
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++it;
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}
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return true;
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}
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const InternetProxyServer & InternetProxyDecider_Impl::getProxy(
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const OUString & rProtocol,
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const OUString & rHost,
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sal_Int32 nPort ) const
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{
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osl::Guard< osl::Mutex > aGuard( m_aMutex );
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if ( m_nProxyType == 0 )
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{
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// Never use proxy.
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return m_aEmptyProxy;
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}
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if ( !rHost.isEmpty() && !m_aNoProxyList.empty() )
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{
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// First, try direct hostname match - #110515#
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if ( !shouldUseProxy( rHost, nPort, false ) )
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return m_aEmptyProxy;
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// Second, try match against full qualified hostname - #104401#
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OUString aHost;
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if ( ( rHost.getLength() > 1 ) &&
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( rHost[ 0 ] == '[' ))
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{
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// host is given as numeric IPv6 address. name resolution
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// functions need hostname without square brackets.
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aHost = rHost.copy( 1, rHost.getLength() - 2 );
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}
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else
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{
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aHost = rHost;
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}
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OUString aFullyQualifiedHost;
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if ( !m_aHostnames.get( aHost, aFullyQualifiedHost ) )
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{
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// This might be quite expensive (DNS lookup).
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const osl::SocketAddr aAddr( aHost, nPort );
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aFullyQualifiedHost = aAddr.getHostname().toAsciiLowerCase();
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m_aHostnames.put( aHost, aFullyQualifiedHost );
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}
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// Error resolving name? -> fallback.
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if ( aFullyQualifiedHost.isEmpty() )
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aFullyQualifiedHost = aHost;
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if ( aFullyQualifiedHost != aHost )
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{
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if ( !shouldUseProxy( aFullyQualifiedHost, nPort, false ) )
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return m_aEmptyProxy;
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}
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// Third, try match of fully qualified entries in no-proxy list
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// against full qualified hostname
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// Example:
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// list: staroffice-doc -> full: xyz.germany.sun.com
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// in: staroffice-doc.germany.sun.com -> full: xyz.germany.sun.com
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if ( !shouldUseProxy( aFullyQualifiedHost, nPort, true ) )
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return m_aEmptyProxy;
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}
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if ( rProtocol.toAsciiLowerCase() == "ftp" )
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{
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if ( !m_aFtpProxy.aName.isEmpty() && m_aFtpProxy.nPort >= 0 )
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return m_aFtpProxy;
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}
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else if ( rProtocol.toAsciiLowerCase() == "https" )
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{
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if ( !m_aHttpsProxy.aName.isEmpty() )
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return m_aHttpsProxy;
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}
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else if ( !m_aHttpProxy.aName.isEmpty() )
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{
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// All other protocols use the HTTP proxy.
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return m_aHttpProxy;
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}
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return m_aEmptyProxy;
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}
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// virtual
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void SAL_CALL InternetProxyDecider_Impl::changesOccurred(
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const util::ChangesEvent& Event )
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throw( uno::RuntimeException, std::exception )
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{
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osl::Guard< osl::Mutex > aGuard( m_aMutex );
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sal_Int32 nCount = Event.Changes.getLength();
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if ( nCount )
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{
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const util::ElementChange* pElementChanges
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= Event.Changes.getConstArray();
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for ( sal_Int32 n = 0; n < nCount; ++n )
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{
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const util::ElementChange& rElem = pElementChanges[ n ];
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OUString aKey;
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if ( ( rElem.Accessor >>= aKey ) && !aKey.isEmpty() )
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{
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if ( aKey == PROXY_TYPE_KEY )
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{
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if ( !( rElem.Element >>= m_nProxyType ) )
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{
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OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
}
|
|
else if ( aKey == NO_PROXY_LIST_KEY )
|
|
{
|
|
OUString aNoProxyList;
|
|
if ( !( rElem.Element >>= aNoProxyList ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
|
|
setNoProxyList( aNoProxyList );
|
|
}
|
|
else if ( aKey == HTTP_PROXY_NAME_KEY )
|
|
{
|
|
if ( !( rElem.Element >>= m_aHttpProxy.aName ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
}
|
|
else if ( aKey == HTTP_PROXY_PORT_KEY )
|
|
{
|
|
if ( !( rElem.Element >>= m_aHttpProxy.nPort ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
|
|
if ( m_aHttpProxy.nPort == -1 )
|
|
m_aHttpProxy.nPort = 80; // standard HTTP port.
|
|
}
|
|
else if ( aKey == HTTPS_PROXY_NAME_KEY )
|
|
{
|
|
if ( !( rElem.Element >>= m_aHttpsProxy.aName ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
}
|
|
else if ( aKey == HTTPS_PROXY_PORT_KEY )
|
|
{
|
|
if ( !( rElem.Element >>= m_aHttpsProxy.nPort ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
|
|
if ( m_aHttpsProxy.nPort == -1 )
|
|
m_aHttpsProxy.nPort = 443; // standard HTTPS port.
|
|
}
|
|
else if ( aKey == FTP_PROXY_NAME_KEY )
|
|
{
|
|
if ( !( rElem.Element >>= m_aFtpProxy.aName ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
}
|
|
else if ( aKey == FTP_PROXY_PORT_KEY )
|
|
{
|
|
if ( !( rElem.Element >>= m_aFtpProxy.nPort ) )
|
|
{
|
|
OSL_FAIL( "InternetProxyDecider - changesOccurred - "
|
|
"Error getting config item value!" );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// virtual
|
|
void SAL_CALL InternetProxyDecider_Impl::disposing(const lang::EventObject&)
|
|
throw( uno::RuntimeException, std::exception )
|
|
{
|
|
if ( m_xNotifier.is() )
|
|
{
|
|
osl::Guard< osl::Mutex > aGuard( m_aMutex );
|
|
|
|
if ( m_xNotifier.is() )
|
|
m_xNotifier.clear();
|
|
}
|
|
}
|
|
|
|
|
|
void InternetProxyDecider_Impl::setNoProxyList(
|
|
const OUString & rNoProxyList )
|
|
{
|
|
osl::Guard< osl::Mutex > aGuard( m_aMutex );
|
|
|
|
m_aNoProxyList.clear();
|
|
|
|
if ( !rNoProxyList.isEmpty() )
|
|
{
|
|
// List of connection endpoints hostname[:port],
|
|
// separated by semicolon. Wildcards allowed.
|
|
|
|
sal_Int32 nPos = 0;
|
|
sal_Int32 nEnd = rNoProxyList.indexOf( ';' );
|
|
sal_Int32 nLen = rNoProxyList.getLength();
|
|
|
|
do
|
|
{
|
|
if ( nEnd == -1 )
|
|
nEnd = nLen;
|
|
|
|
OUString aToken = rNoProxyList.copy( nPos, nEnd - nPos );
|
|
|
|
if ( !aToken.isEmpty() )
|
|
{
|
|
OUString aServer;
|
|
OUString aPort;
|
|
|
|
// numerical IPv6 address?
|
|
bool bIPv6Address = false;
|
|
sal_Int32 nClosedBracketPos = aToken.indexOf( ']' );
|
|
if ( nClosedBracketPos == -1 )
|
|
nClosedBracketPos = 0;
|
|
else
|
|
bIPv6Address = true;
|
|
|
|
sal_Int32 nColonPos = aToken.indexOf( ':', nClosedBracketPos );
|
|
if ( nColonPos == -1 )
|
|
{
|
|
// No port given, server pattern equals current token
|
|
aPort = "*";
|
|
if ( aToken.indexOf( '*' ) == -1 )
|
|
{
|
|
// pattern describes exactly one server
|
|
aServer = aToken;
|
|
}
|
|
|
|
aToken += ":*";
|
|
}
|
|
else
|
|
{
|
|
// Port given, extract server pattern
|
|
sal_Int32 nAsteriskPos = aToken.indexOf( '*' );
|
|
aPort = aToken.copy( nColonPos + 1 );
|
|
if ( nAsteriskPos < nColonPos )
|
|
{
|
|
// pattern describes exactly one server
|
|
aServer = aToken.copy( 0, nColonPos );
|
|
}
|
|
}
|
|
|
|
OUStringBuffer aFullyQualifiedHost;
|
|
if ( !aServer.isEmpty() )
|
|
{
|
|
// Remember fully qualified server name if current list
|
|
// entry specifies exactly one non-fully qualified server
|
|
// name.
|
|
|
|
// remove square brackets from host name in case it's
|
|
// a numerical IPv6 address.
|
|
if ( bIPv6Address )
|
|
aServer = aServer.copy( 1, aServer.getLength() - 2 );
|
|
|
|
// This might be quite expensive (DNS lookup).
|
|
const osl::SocketAddr aAddr( aServer, 0 );
|
|
OUString aTmp = aAddr.getHostname().toAsciiLowerCase();
|
|
if ( aTmp != aServer.toAsciiLowerCase() )
|
|
{
|
|
if ( bIPv6Address )
|
|
{
|
|
aFullyQualifiedHost.append( "[" );
|
|
aFullyQualifiedHost.append( aTmp );
|
|
aFullyQualifiedHost.append( "]" );
|
|
}
|
|
else
|
|
{
|
|
aFullyQualifiedHost.append( aTmp );
|
|
}
|
|
aFullyQualifiedHost.append( ":" );
|
|
aFullyQualifiedHost.append( aPort );
|
|
}
|
|
}
|
|
|
|
m_aNoProxyList.push_back(
|
|
NoProxyListEntry( WildCard( aToken ),
|
|
WildCard(
|
|
aFullyQualifiedHost
|
|
.makeStringAndClear() ) ) );
|
|
}
|
|
|
|
if ( nEnd != nLen )
|
|
{
|
|
nPos = nEnd + 1;
|
|
nEnd = rNoProxyList.indexOf( ';', nPos );
|
|
}
|
|
}
|
|
while ( nEnd != nLen );
|
|
}
|
|
}
|
|
|
|
} // namespace proxydecider_impl
|
|
|
|
|
|
// InternetProxyDecider Implementation.
|
|
|
|
|
|
InternetProxyDecider::InternetProxyDecider(
|
|
const uno::Reference< uno::XComponentContext>& rxContext )
|
|
: m_xImpl( new proxydecider_impl::InternetProxyDecider_Impl( rxContext ) )
|
|
{
|
|
}
|
|
|
|
|
|
InternetProxyDecider::~InternetProxyDecider()
|
|
{
|
|
// Break circular reference between config listener and notifier.
|
|
m_xImpl->dispose();
|
|
}
|
|
|
|
|
|
bool InternetProxyDecider::shouldUseProxy( const OUString & rProtocol,
|
|
const OUString & rHost,
|
|
sal_Int32 nPort ) const
|
|
{
|
|
const InternetProxyServer & rData = m_xImpl->getProxy( rProtocol,
|
|
rHost,
|
|
nPort );
|
|
return !rData.aName.isEmpty();
|
|
}
|
|
|
|
|
|
const InternetProxyServer & InternetProxyDecider::getProxy(
|
|
const OUString & rProtocol,
|
|
const OUString & rHost,
|
|
sal_Int32 nPort ) const
|
|
{
|
|
return m_xImpl->getProxy( rProtocol, rHost, nPort );
|
|
}
|
|
|
|
} // namespace ucbhelper
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|