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| -rw-r--r-- | ucbhelper/source/client/proxydecider.cxx | 960 |
1 files changed, 960 insertions, 0 deletions
diff --git a/ucbhelper/source/client/proxydecider.cxx b/ucbhelper/source/client/proxydecider.cxx new file mode 100644 index 000000000..10228b72a --- /dev/null +++ b/ucbhelper/source/client/proxydecider.cxx @@ -0,0 +1,960 @@ +/* -*- 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 <string_view> +#include <utility> +#include <vector> +#include <deque> + +#include <osl/diagnose.h> +#include <osl/mutex.hxx> +#include <rtl/ref.hxx> +#include <osl/socket.hxx> +#include <rtl/ustrbuf.hxx> +#include <com/sun/star/container/XNameAccess.hpp> +#include <com/sun/star/configuration/theDefaultProvider.hpp> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <com/sun/star/util/XChangesListener.hpp> +#include <com/sun/star/util/XChangesNotifier.hpp> +#include <cppuhelper/implbase.hxx> +#include <ucbhelper/proxydecider.hxx> +#include <o3tl/string_view.hxx> + +#ifdef _WIN32 +#include <o3tl/char16_t2wchar_t.hxx> +#define WIN32_LEAN_AND_MEAN +#include <Windows.h> +#include <Winhttp.h> +#endif + +using namespace com::sun::star; +using namespace ucbhelper; + +constexpr OUStringLiteral CONFIG_ROOT_KEY = u"org.openoffice.Inet/Settings"; +constexpr OUStringLiteral PROXY_TYPE_KEY = u"ooInetProxyType"; +constexpr OUStringLiteral NO_PROXY_LIST_KEY = u"ooInetNoProxy"; +constexpr OUStringLiteral HTTP_PROXY_NAME_KEY = u"ooInetHTTPProxyName"; +constexpr OUStringLiteral HTTP_PROXY_PORT_KEY = u"ooInetHTTPProxyPort"; +constexpr OUStringLiteral HTTPS_PROXY_NAME_KEY = u"ooInetHTTPSProxyName"; +constexpr OUStringLiteral HTTPS_PROXY_PORT_KEY = u"ooInetHTTPSProxyPort"; +constexpr OUStringLiteral FTP_PROXY_NAME_KEY = u"ooInetFTPProxyName"; +constexpr OUStringLiteral FTP_PROXY_PORT_KEY = u"ooInetFTPProxyPort"; + + +namespace ucbhelper +{ + + +namespace proxydecider_impl +{ + +namespace { + +// A simple case ignoring wildcard matcher. +class WildCard +{ +private: + OString m_aWildString; + +public: + explicit WildCard( std::u16string_view rWildCard ) + : m_aWildString( + OUStringToOString( + rWildCard, RTL_TEXTENCODING_UTF8 ).toAsciiLowerCase() ) {} + + bool Matches( std::u16string_view rStr ) const; +}; + +} + +namespace { + +class HostnameCache +{ + typedef std::pair< OUString, OUString > HostListEntry; + + std::deque< HostListEntry > m_aHostList; + +public: + bool get( std::u16string_view rKey, OUString & rValue ) const + { + for (auto const& host : m_aHostList) + { + if ( host.first == rKey ) + { + rValue = host.second; + return true; + } + } + return false; + } + + void put( const OUString & rKey, const OUString & rValue ) + { + static constexpr sal_uInt32 nCapacity = 256; + + if ( m_aHostList.size() == nCapacity ) + m_aHostList.resize( nCapacity / 2 ); + + m_aHostList.push_front( HostListEntry( rKey, rValue ) ); + } +}; + +} + +class InternetProxyDecider_Impl : + public cppu::WeakImplHelper< util::XChangesListener > +{ + // see officecfg/registry/schema/org/openoffice/Inet.xcs for the definition of these values + enum class ProxyType { NoProxy, Automatic, Manual }; + mutable osl::Mutex m_aMutex; + InternetProxyServer m_aHttpProxy; + InternetProxyServer m_aHttpsProxy; + InternetProxyServer m_aFtpProxy; + const InternetProxyServer m_aEmptyProxy; + ProxyType m_nProxyType; + uno::Reference< util::XChangesNotifier > m_xNotifier; + typedef std::pair< WildCard, WildCard > NoProxyListEntry; + std::vector< NoProxyListEntry > m_aNoProxyList; + mutable HostnameCache m_aHostnames; + +private: + bool shouldUseProxy( std::u16string_view rHost, + sal_Int32 nPort, + bool bUseFullyQualified ) const; +public: + explicit InternetProxyDecider_Impl( + const uno::Reference< uno::XComponentContext >& rxContext ); + + void dispose(); + + InternetProxyServer getProxy(const OUString& rProtocol, + const OUString & rHost, + sal_Int32 nPort ) const; + + // XChangesListener + virtual void SAL_CALL changesOccurred( const util::ChangesEvent& Event ) override; + + // XEventListener ( base of XChangesLisetenr ) + virtual void SAL_CALL disposing( const lang::EventObject& Source ) override; + +private: + void setNoProxyList( const OUString & rNoProxyList ); +}; + + +// WildCard Implementation. + + +bool WildCard::Matches( std::u16string_view rString ) const +{ + OString aString + = OUStringToOString( rString, RTL_TEXTENCODING_UTF8 ).toAsciiLowerCase(); + const char * pStr = aString.getStr(); + const char * pWild = m_aWildString.getStr(); + + int pos = 0; + int flag = 0; + + while ( *pWild || flag ) + { + switch ( *pWild ) + { + case '?': + if ( *pStr == '\0' ) + return false; + break; + + default: + if ( ( *pWild == '\\' ) && ( ( *( pWild + 1 ) == '?' ) + || ( *( pWild + 1 ) == '*') ) ) + pWild++; + if ( *pWild != *pStr ) + if ( !pos ) + return false; + else + pWild += pos; + else + break; + + [[fallthrough]]; + + case '*': + while ( *pWild == '*' ) + pWild++; + if ( *pWild == '\0' ) + return true; + flag = 1; + pos = 0; + if ( *pStr == '\0' ) + return ( *pWild == '\0' ); + while ( *pStr && *pStr != *pWild ) + { + if ( *pWild == '?' ) { + pWild++; + while ( *pWild == '*' ) + pWild++; + } + pStr++; + if ( *pStr == '\0' ) + return ( *pWild == '\0' ); + } + break; + } + if ( *pWild != '\0' ) + pWild++; + if ( *pStr != '\0' ) + pStr++; + else + flag = 0; + if ( flag ) + pos--; + } + return ( *pStr == '\0' ) && ( *pWild == '\0' ); +} + + +static bool getConfigStringValue( + const uno::Reference< container::XNameAccess > & xNameAccess, + const OUString& key, + OUString & value ) +{ + try + { + if ( !( xNameAccess->getByName( key ) >>= value ) ) + { + OSL_FAIL( "InternetProxyDecider - " + "Error getting config item value!" ); + return false; + } + } + catch ( lang::WrappedTargetException const & ) + { + return false; + } + catch ( container::NoSuchElementException const & ) + { + return false; + } + return true; +} + + +static bool getConfigInt32Value( + const uno::Reference< container::XNameAccess > & xNameAccess, + const OUString& key, + sal_Int32 & value ) +{ + try + { + uno::Any aValue = xNameAccess->getByName( key ); + if ( aValue.hasValue() && !( aValue >>= value ) ) + { + OSL_FAIL( "InternetProxyDecider - " + "Error getting config item value!" ); + return false; + } + } + catch ( lang::WrappedTargetException const & ) + { + return false; + } + catch ( container::NoSuchElementException const & ) + { + return false; + } + return true; +} + + +// InternetProxyDecider_Impl Implementation. + + +InternetProxyDecider_Impl::InternetProxyDecider_Impl( + const uno::Reference< uno::XComponentContext >& rxContext ) + : m_nProxyType( ProxyType::NoProxy ), + m_aHostnames() +{ + try + { + + // Read proxy configuration from config db. + + + uno::Reference< lang::XMultiServiceFactory > xConfigProv = + configuration::theDefaultProvider::get( rxContext ); + + uno::Sequence< uno::Any > aArguments{ uno::Any(OUString( CONFIG_ROOT_KEY )) }; + uno::Reference< uno::XInterface > xInterface( + xConfigProv->createInstanceWithArguments( + "com.sun.star.configuration.ConfigurationAccess", + aArguments ) ); + + OSL_ENSURE( xInterface.is(), + "InternetProxyDecider - No config access!" ); + + if ( xInterface.is() ) + { + uno::Reference< container::XNameAccess > xNameAccess( + xInterface, uno::UNO_QUERY ); + OSL_ENSURE( xNameAccess.is(), + "InternetProxyDecider - No name access!" ); + + if ( xNameAccess.is() ) + { + // *** Proxy type *** + sal_Int32 tmp = 0; + getConfigInt32Value( + xNameAccess, PROXY_TYPE_KEY, tmp ); + m_nProxyType = static_cast<ProxyType>(tmp); + + // *** No proxy list *** + OUString aNoProxyList; + getConfigStringValue( + xNameAccess, NO_PROXY_LIST_KEY, aNoProxyList ); + setNoProxyList( aNoProxyList ); + + // *** HTTP *** + getConfigStringValue( + xNameAccess, HTTP_PROXY_NAME_KEY, m_aHttpProxy.aName ); + + m_aHttpProxy.nPort = -1; + getConfigInt32Value( + xNameAccess, HTTP_PROXY_PORT_KEY, m_aHttpProxy.nPort ); + if ( m_aHttpProxy.nPort == -1 ) + m_aHttpProxy.nPort = 80; // standard HTTP port. + + // *** HTTPS *** + getConfigStringValue( + xNameAccess, HTTPS_PROXY_NAME_KEY, m_aHttpsProxy.aName ); + + m_aHttpsProxy.nPort = -1; + getConfigInt32Value( + xNameAccess, HTTPS_PROXY_PORT_KEY, m_aHttpsProxy.nPort ); + if ( m_aHttpsProxy.nPort == -1 ) + m_aHttpsProxy.nPort = 443; // standard HTTPS port. + + // *** FTP *** + getConfigStringValue( + xNameAccess, FTP_PROXY_NAME_KEY, m_aFtpProxy.aName ); + + m_aFtpProxy.nPort = -1; + getConfigInt32Value( + xNameAccess, FTP_PROXY_PORT_KEY, m_aFtpProxy.nPort ); + } + + // Register as listener for config changes. + + m_xNotifier.set( xInterface, uno::UNO_QUERY ); + + OSL_ENSURE( m_xNotifier.is(), + "InternetProxyDecider - No notifier!" ); + + if ( m_xNotifier.is() ) + m_xNotifier->addChangesListener( this ); + } + } + catch ( uno::Exception const & ) + { + // createInstance, createInstanceWithArguments + OSL_FAIL( "InternetProxyDecider - Exception!" ); + } +} + +void InternetProxyDecider_Impl::dispose() +{ + uno::Reference< util::XChangesNotifier > xNotifier; + + if ( m_xNotifier.is() ) + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + + if ( m_xNotifier.is() ) + { + xNotifier = m_xNotifier; + m_xNotifier.clear(); + } + } + + // Do this unguarded! + if ( xNotifier.is() ) + xNotifier->removeChangesListener( this ); +} + + +bool InternetProxyDecider_Impl::shouldUseProxy( std::u16string_view rHost, + sal_Int32 nPort, + bool bUseFullyQualified ) const +{ + OUStringBuffer aBuffer; + + if ( ( rHost.find( ':' ) != std::u16string_view::npos ) && + ( rHost[ 0 ] != '[' ) ) + { + // host is given as numeric IPv6 address + aBuffer.append( "[" ); + aBuffer.append( rHost ); + aBuffer.append( "]" ); + } + else + { + // host is given either as numeric IPv4 address or non-numeric hostname + aBuffer.append( rHost ); + } + + aBuffer.append( ':' ); + aBuffer.append( nPort ); + const OUString aHostAndPort( aBuffer.makeStringAndClear() ); + + for (auto const& noProxy : m_aNoProxyList) + { + if ( bUseFullyQualified ) + { + if ( noProxy.second.Matches( aHostAndPort ) ) + return false; + } + else + { + if ( noProxy.first.Matches( aHostAndPort ) ) + return false; + } + } + + return true; +} + +namespace +{ +#ifdef _WIN32 +struct GetPACProxyData +{ + const OUString& m_rProtocol; + const OUString& m_rHost; + sal_Int32 m_nPort; + bool m_bAutoDetect = false; + OUString m_sAutoConfigUrl; + InternetProxyServer m_ProxyServer; + + GetPACProxyData(const OUString& rProtocol, const OUString& rHost, sal_Int32 nPort) + : m_rProtocol(rProtocol) + , m_rHost(rHost) + , m_nPort(nPort) + { + } +}; + +// Tries to get proxy configuration using WinHttpGetProxyForUrl, which supports Web Proxy Auto-Discovery +// (WPAD) protocol and manually configured address to get Proxy Auto-Configuration (PAC) file. +// The WinINet/WinHTTP functions cannot correctly run in a STA COM thread, so use a dedicated thread +DWORD WINAPI GetPACProxyThread(_In_ LPVOID lpParameter) +{ + assert(lpParameter); + GetPACProxyData* pData = static_cast<GetPACProxyData*>(lpParameter); + + OUString url(pData->m_rProtocol + "://" + pData->m_rHost + ":" + + OUString::number(pData->m_nPort)); + + HINTERNET hInternet = WinHttpOpen(L"Mozilla 5.0", WINHTTP_ACCESS_TYPE_NO_PROXY, + WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0); + DWORD nError = GetLastError(); + if (!hInternet) + return nError; + + WINHTTP_AUTOPROXY_OPTIONS AutoProxyOptions{}; + if (pData->m_bAutoDetect) + { + AutoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT; + AutoProxyOptions.dwAutoDetectFlags + = WINHTTP_AUTO_DETECT_TYPE_DHCP | WINHTTP_AUTO_DETECT_TYPE_DNS_A; + } + if (!pData->m_sAutoConfigUrl.isEmpty()) + { + AutoProxyOptions.dwFlags |= WINHTTP_AUTOPROXY_CONFIG_URL; + AutoProxyOptions.lpszAutoConfigUrl = o3tl::toW(pData->m_sAutoConfigUrl.getStr()); + } + // First, try without autologon. According to + // https://github.com/Microsoft/Windows-classic-samples/blob/master/Samples/Win7Samples/web/winhttp/WinhttpProxySample/GetProxy.cpp + // autologon prevents caching, and so causes repetitive network traffic. + AutoProxyOptions.fAutoLogonIfChallenged = FALSE; + WINHTTP_PROXY_INFO ProxyInfo{}; + bool bResult + = WinHttpGetProxyForUrl(hInternet, o3tl::toW(url.getStr()), &AutoProxyOptions, &ProxyInfo); + nError = GetLastError(); + if (!bResult && nError == ERROR_WINHTTP_LOGIN_FAILURE) + { + AutoProxyOptions.fAutoLogonIfChallenged = TRUE; + bResult = WinHttpGetProxyForUrl(hInternet, o3tl::toW(url.getStr()), + &AutoProxyOptions, &ProxyInfo); + nError = GetLastError(); + } + WinHttpCloseHandle(hInternet); + if (bResult) + { + if (ProxyInfo.lpszProxyBypass) + GlobalFree(ProxyInfo.lpszProxyBypass); + if (ProxyInfo.lpszProxy) + { + OUString sProxyResult(o3tl::toU(ProxyInfo.lpszProxy)); + GlobalFree(ProxyInfo.lpszProxy); + // Get the first of possibly multiple results + sProxyResult = sProxyResult.getToken(0, ';'); + sal_Int32 nPortSepPos = sProxyResult.indexOf(':'); + if (nPortSepPos != -1) + { + pData->m_ProxyServer.nPort = o3tl::toInt32(sProxyResult.subView(nPortSepPos + 1)); + sProxyResult = sProxyResult.copy(0, nPortSepPos); + } + else + { + pData->m_ProxyServer.nPort = 0; + } + pData->m_ProxyServer.aName = sProxyResult; + } + } + + return nError; +} + +InternetProxyServer GetPACProxy(const OUString& rProtocol, const OUString& rHost, sal_Int32 nPort) +{ + GetPACProxyData aData(rProtocol, rHost, nPort); + + // WinHTTP only supports http(s), so don't try for other protocols + if (!(rProtocol.equalsIgnoreAsciiCase("http") || rProtocol.equalsIgnoreAsciiCase("https"))) + return aData.m_ProxyServer; + + // Only try to get configuration from PAC (with all the overhead, including new thread) + // if configured to do so + { + WINHTTP_CURRENT_USER_IE_PROXY_CONFIG aProxyConfig{}; + bool bResult = WinHttpGetIEProxyConfigForCurrentUser(&aProxyConfig); + if (aProxyConfig.lpszProxy) + GlobalFree(aProxyConfig.lpszProxy); + if (aProxyConfig.lpszProxyBypass) + GlobalFree(aProxyConfig.lpszProxyBypass); + // Don't try WPAD if AutoDetection or AutoConfig script URL are not configured + if (!bResult || !(aProxyConfig.fAutoDetect || aProxyConfig.lpszAutoConfigUrl)) + return aData.m_ProxyServer; + aData.m_bAutoDetect = aProxyConfig.fAutoDetect; + if (aProxyConfig.lpszAutoConfigUrl) + { + aData.m_sAutoConfigUrl = o3tl::toU(aProxyConfig.lpszAutoConfigUrl); + GlobalFree(aProxyConfig.lpszAutoConfigUrl); + } + } + + HANDLE hThread = CreateThread(nullptr, 0, GetPACProxyThread, &aData, 0, nullptr); + if (hThread) + { + WaitForSingleObject(hThread, INFINITE); + CloseHandle(hThread); + } + return aData.m_ProxyServer; +} + +#else // .. _WIN32 + +// Read the settings from the OS which are stored in env vars +// +InternetProxyServer GetUnixSystemProxy(const OUString & rProtocol) +{ + // TODO this could be improved to read the "no_proxy" env variable + InternetProxyServer aProxy; + OUString protocolLower = rProtocol.toAsciiLowerCase() + "_proxy"; + OString protocolLowerStr = OUStringToOString( protocolLower, RTL_TEXTENCODING_ASCII_US ); + const char* pEnvProxy = getenv(protocolLowerStr.getStr()); + if (!pEnvProxy) + return aProxy; + // expecting something like "https://example.ct:80" + OUString tmp = OUString::createFromAscii(pEnvProxy); + if (tmp.getLength() < (rProtocol.getLength() + 3)) + return aProxy; + tmp = tmp.copy(rProtocol.getLength() + 3); + sal_Int32 x = tmp.indexOf(':'); + if (x == -1) + return aProxy; + int nPort = o3tl::toInt32(tmp.subView(x + 1)); + if (nPort == 0) + return aProxy; + aProxy.aName = tmp.copy(0, x); + aProxy.nPort = nPort; + return aProxy; +} + +#endif // else .. _WIN32 +} + +InternetProxyServer InternetProxyDecider_Impl::getProxy( + const OUString & rProtocol, + const OUString & rHost, + sal_Int32 nPort ) const +{ + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + + if ( m_nProxyType == ProxyType::NoProxy ) + { + // Never use proxy. + return m_aEmptyProxy; + } + + // If get from system + if (m_nProxyType == ProxyType::Automatic && !rHost.isEmpty()) + { +#ifdef _WIN32 + InternetProxyServer aProxy(GetPACProxy(rProtocol, rHost, nPort)); +#else + InternetProxyServer aProxy(GetUnixSystemProxy(rProtocol)); +#endif // _WIN32 + if (!aProxy.aName.isEmpty()) + return aProxy; + } + + if ( !rHost.isEmpty() && !m_aNoProxyList.empty() ) + { + + // First, try direct hostname match - #110515# + + + if ( !shouldUseProxy( rHost, nPort, false ) ) + return m_aEmptyProxy; + + + // Second, try match against full qualified hostname - #104401# + + + OUString aHost; + + if ( ( rHost.getLength() > 1 ) && + ( rHost[ 0 ] == '[' )) + { + // host is given as numeric IPv6 address. name resolution + // functions need hostname without square brackets. + aHost = rHost.copy( 1, rHost.getLength() - 2 ); + } + else + { + aHost = rHost; + } + + OUString aFullyQualifiedHost; + if ( !m_aHostnames.get( aHost, aFullyQualifiedHost ) ) + { + // This might be quite expensive (DNS lookup). + const osl::SocketAddr aAddr( aHost, nPort ); + aFullyQualifiedHost = aAddr.getHostname().toAsciiLowerCase(); + m_aHostnames.put( aHost, aFullyQualifiedHost ); + } + + // Error resolving name? -> fallback. + if ( aFullyQualifiedHost.isEmpty() ) + aFullyQualifiedHost = aHost; + + if ( aFullyQualifiedHost != aHost ) + { + if ( !shouldUseProxy( aFullyQualifiedHost, nPort, false ) ) + return m_aEmptyProxy; + } + + + // Third, try match of fully qualified entries in no-proxy list + // against full qualified hostname + + // Example: + // list: staroffice-doc -> full: xyz.germany.sun.com + // in: staroffice-doc.germany.sun.com -> full: xyz.germany.sun.com + + + if ( !shouldUseProxy( aFullyQualifiedHost, nPort, true ) ) + return m_aEmptyProxy; + } + + if ( rProtocol.toAsciiLowerCase() == "ftp" ) + { + if ( !m_aFtpProxy.aName.isEmpty() && m_aFtpProxy.nPort >= 0 ) + return m_aFtpProxy; + } + else if ( rProtocol.toAsciiLowerCase() == "https" ) + { + if ( !m_aHttpsProxy.aName.isEmpty() ) + return m_aHttpsProxy; + } + else if ( !m_aHttpProxy.aName.isEmpty() ) + { + // All other protocols use the HTTP proxy. + return m_aHttpProxy; + } + return m_aEmptyProxy; +} + +// virtual +void SAL_CALL InternetProxyDecider_Impl::changesOccurred( + const util::ChangesEvent& Event ) +{ + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + + for ( const util::ElementChange& rElem : Event.Changes ) + { + OUString aKey; + if ( ( rElem.Accessor >>= aKey ) && !aKey.isEmpty() ) + { + if ( aKey == PROXY_TYPE_KEY ) + { + sal_Int32 tmp; + if ( !( rElem.Element >>= tmp ) ) + { + OSL_FAIL( "InternetProxyDecider - changesOccurred - " + "Error getting config item value!" ); + } + else + m_nProxyType = static_cast<ProxyType>(tmp); + } + 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&) +{ + 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() ) + return; + + // 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.emplace_back( WildCard( aToken ), + WildCard( aFullyQualifiedHost ) ); + } + + 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(); +} + + +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: */ |