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472 lines
17 KiB
472 lines
17 KiB
/*
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Copyright (c) 2003 Malte Starostik <malte@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <cstdlib>
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#include <vector>
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#include <algorithm>
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#include <ctime>
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#include <cstring>
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#include <netdb.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <tqregexp.h>
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#include <tqstring.h>
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#include <kurl.h>
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#include <kjs/object.h>
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#include <kresolver.h>
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#include "script.h"
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using namespace KJS;
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TQString UString::qstring() const
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{
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return TQString( reinterpret_cast< const TQChar* >( data() ), size() );
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}
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UString::UString( const TQString &s )
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{
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UChar* data = new UChar[ s.length() ];
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std::memcpy( data, s.unicode(), s.length() * sizeof( UChar ) );
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rep = Rep::create( data, s.length() );
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}
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namespace
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{
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class Address
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{
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public:
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struct Error {};
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static Address resolve( const UString& host )
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{ return Address( host.qstring(), false ); }
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static Address parse( const UString& ip )
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{ return Address( ip.qstring(), true ); }
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operator in_addr_t() const {
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const sockaddr_in* sin = m_address;
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return sin->sin_addr.s_addr;
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}
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operator String() const { return String( m_address.ipAddress().toString() ); }
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private:
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Address( const TQString& host, bool numeric )
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{
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int flags = 0;
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if ( numeric )
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flags = KNetwork::KResolver::NoResolve;
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KNetwork::KResolverResults addresses =
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KNetwork::KResolver::resolve( host, TQString::null, flags,
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KNetwork::KResolver::IPv4Family );
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if ( addresses.isEmpty() )
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throw Error();
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m_address = addresses.first().address().asInet();
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}
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KNetwork::KInetSocketAddress m_address;
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};
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struct Function : public ObjectImp
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{
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struct ResolveError {};
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virtual bool implementsCall() const { return true; }
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static int findString( const UString& s, const char* const* values )
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{
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int index = 0;
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UString lower = s.toLower();
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for ( const char* const* p = values; *p; ++p, ++index )
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if ( lower == *p ) return index;
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return -1;
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}
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static const tm* getTime( ExecState* exec, const List& args )
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{
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time_t now = std::time( 0 );
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if ( args[ args.size() - 1 ].toString( exec ).toLower() == "gmt" )
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return std::gmtime( &now );
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else return std::localtime( &now );
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}
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Boolean checkRange( int value, int min, int max )
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{
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return ( min <= max && value >= min && value <= max ) ||
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( min > max && ( value <= min || value >= max ) );
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}
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};
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// isPlainHostName( host )
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// @returns true if @p host doesn't contains a domain part
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struct IsPlainHostName : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 1 ) return Undefined();
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return Boolean( args[ 0 ].toString( exec ).find( "." ) == -1 );
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}
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};
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// dnsDomainIs( host, domain )
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// @returns true if the domain part of @p host matches @p domain
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struct DNSDomainIs : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 2 ) return Undefined();
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TQString host = args[ 0 ].toString( exec ).qstring().lower();
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TQString domain = args[ 1 ].toString( exec ).qstring().lower();
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return Boolean( host.endsWith( domain ) );
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}
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};
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// localHostOrDomainIs( host, fqdn )
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// @returns true if @p host is unqualified or equals @p fqdn
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struct LocalHostOrDomainIs : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 2 ) return Undefined();
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UString host = args[ 0 ].toString( exec ).toLower();
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if ( host.find( "." ) == -1 ) return Boolean( true );
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UString fqdn = args[ 1 ].toString( exec ).toLower();
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return Boolean( host == fqdn );
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}
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};
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// isResolvable( host )
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// @returns true if host can be resolved via DNS
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struct IsResolvable : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 1 ) return Undefined();
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try { ::Address::resolve( args[ 0 ].toString( exec ) ); }
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catch ( const Address::Error& ) { return Boolean( false ); }
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return Boolean( true );
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}
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};
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// isInNet( host, subnet, mask )
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// @returns true if @p host is within the IP subnet
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// specified via @p subnet and @p mask
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struct IsInNet : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 3 ) return Undefined();
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try
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{
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in_addr_t host = Address::resolve( args[ 0 ].toString( exec ) );
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in_addr_t subnet = Address::parse( args[ 1 ].toString( exec ) );
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in_addr_t mask = Address::parse( args[ 2 ].toString( exec ) );
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return Boolean( ( host & mask ) == ( subnet & mask ) );
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}
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catch ( const Address::Error& )
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{
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return Undefined();
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}
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}
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};
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// dnsResolve( host )
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// @returns the IP address of @p host in dotted quad notation
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struct DNSResolve : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 1 ) return Undefined();
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try { return String(Address::resolve( args[ 0 ].toString( exec ))); }
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catch ( const Address::Error& ) { return Undefined(); }
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}
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};
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// myIpAddress()
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// @returns the local machine's IP address in dotted quad notation
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struct MyIpAddress : public Function
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{
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virtual Value call( ExecState*, Object&, const List& args )
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{
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if ( args.size() ) return Undefined();
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char hostname[ 256 ];
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gethostname( hostname, 255 );
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hostname[ 255 ] = 0;
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try { return String(Address::resolve( hostname )); }
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catch ( const Address::Error& ) { return Undefined(); }
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}
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};
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// dnsDomainLevels( host )
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// @returns the number of dots ('.') in @p host
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struct DNSDomainLevels : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 1 ) return Undefined();
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UString host = args[ 0 ].toString( exec );
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if ( host.isNull() ) return Number( 0 );
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return Number( std::count(
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host.data(), host.data() + host.size(), '.' ) );
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}
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};
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// shExpMatch( str, pattern )
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// @returns true if @p str matches the shell @p pattern
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struct ShExpMatch : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() != 2 ) return Undefined();
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TQRegExp pattern( args[ 1 ].toString( exec ).qstring(), true, true );
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return Boolean( pattern.exactMatch(args[ 0 ].toString( exec ).qstring()) );
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}
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};
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// weekdayRange( day [, "GMT" ] )
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// weekdayRange( day1, day2 [, "GMT" ] )
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// @returns true if the current day equals day or between day1 and day2 resp.
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// If the last argument is "GMT", GMT timezone is used, otherwise local time
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struct WeekdayRange : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() < 1 || args.size() > 3 ) return Undefined();
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static const char* const days[] =
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{ "sun", "mon", "tue", "wed", "thu", "fri", "sat", 0 };
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int d1 = findString( args[ 0 ].toString( exec ), days );
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if ( d1 == -1 ) return Undefined();
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int d2 = findString( args[ 1 ].toString( exec ), days );
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if ( d2 == -1 ) d2 = d1;
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return checkRange( getTime( exec, args )->tm_wday, d1, d2 );
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}
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};
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// dateRange( day [, "GMT" ] )
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// dateRange( day1, day2 [, "GMT" ] )
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// dateRange( month [, "GMT" ] )
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// dateRange( month1, month2 [, "GMT" ] )
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// dateRange( year [, "GMT" ] )
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// dateRange( year1, year2 [, "GMT" ] )
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// dateRange( day1, month1, day2, month2 [, "GMT" ] )
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// dateRange( month1, year1, month2, year2 [, "GMT" ] )
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// dateRange( day1, month1, year1, day2, month2, year2 [, "GMT" ] )
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// @returns true if the current date (GMT or local time according to
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// presence of "GMT" as last argument) is within the given range
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struct DateRange : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() < 1 || args.size() > 7 ) return Undefined();
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static const char* const months[] =
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{ "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "nov", "dec", 0 };
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std::vector< int > values;
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for ( int i = 0; i < args.size(); ++i )
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{
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int value = -1;
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if ( args[ i ].isA( NumberType ) )
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value = args[ i ].toInteger( exec );
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else value = findString( args[ i ].toString( exec ), months );
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if ( value >= 0 ) values.push_back( value );
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else break;
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}
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const tm* now = getTime( exec, args );
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// day1, month1, year1, day2, month2, year2
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if ( values.size() == 6 )
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return checkRange( ( now->tm_year + 1900 ) * 372 + now->tm_mon * 31 + now->tm_mday,
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values[ 2 ] * 372 + values[ 1 ] * 31 + values[ 0 ],
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values[ 5 ] * 372 + values[ 4 ] * 31 + values[ 3 ] );
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// day1, month1, day2, month2
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else if ( values.size() == 4 &&
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values[ 1 ] < 12 &&
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values[ 3 ] < 12 )
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return checkRange( now->tm_mon * 31 + now->tm_mday,
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values[ 1 ] * 31 + values[ 0 ],
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values[ 3 ] * 31 + values[ 2 ] );
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// month1, year1, month2, year2
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else if ( values.size() == 4 )
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return checkRange( ( now->tm_year + 1900 ) * 12 + now->tm_mon,
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values[ 1 ] * 12 + values[ 0 ],
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values[ 3 ] * 12 + values[ 2 ] );
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// year1, year2
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else if ( values.size() == 2 &&
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values[ 0 ] >= 1000 &&
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values[ 1 ] >= 1000 )
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return checkRange( now->tm_year + 1900, values[ 0 ], values[ 1 ] );
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// day1, day2
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else if ( values.size() == 2 &&
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args[ 0 ].isA( NumberType ) &&
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args[ 1 ].isA( NumberType ) )
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return checkRange( now->tm_mday, values[ 0 ], values[ 1 ] );
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// month1, month2
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else if ( values.size() == 2 )
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return checkRange( now->tm_mon, values[ 0 ], values[ 1 ] );
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// year
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else if ( values.size() == 1 && values[ 0 ] >= 1000 )
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return checkRange( now->tm_year + 1900, values[ 0 ], values[ 0 ] );
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// day
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else if ( values.size() == 1 && args[ 0 ].isA( NumberType ) )
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return checkRange( now->tm_mday, values[ 0 ], values[ 0 ] );
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// month
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else if ( values.size() == 1 )
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return checkRange( now->tm_mon, values[ 0 ], values[ 0 ] );
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else return Undefined();
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}
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};
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// timeRange( hour [, "GMT" ] )
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// timeRange( hour1, hour2 [, "GMT" ] )
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// timeRange( hour1, min1, hour2, min2 [, "GMT" ] )
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// timeRange( hour1, min1, sec1, hour2, min2, sec2 [, "GMT" ] )
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// @returns true if the current time (GMT or local based on presence
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// of "GMT" argument) is within the given range
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struct TimeRange : public Function
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{
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virtual Value call( ExecState* exec, Object&, const List& args )
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{
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if ( args.size() < 1 || args.size() > 7 ) return Undefined();
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std::vector< int > values;
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for ( int i = 0; i < args.size(); ++i )
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if ( args[ i ].isA( NumberType ) )
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values.push_back( args[ i ].toInteger( exec ) );
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else break;
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const tm* now = getTime( exec, args );
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// hour1, min1, sec1, hour2, min2, sec2
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if ( values.size() == 6 )
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return checkRange( now->tm_hour * 3600 + now->tm_min * 60 + now->tm_sec,
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values[ 0 ] * 3600 + values[ 1 ] * 60 + values[ 2 ],
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values[ 3 ] * 3600 + values[ 4 ] * 60 + values[ 5 ] );
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// hour1, min1, hour2, min2
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else if ( values.size() == 4 )
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return checkRange( now->tm_hour * 60 + now->tm_min,
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values[ 0 ] * 60 + values[ 1 ],
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values[ 2 ] * 60 + values[ 3 ] );
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// hour1, hour2
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else if ( values.size() == 2 )
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return checkRange( now->tm_hour, values[ 0 ], values[ 1 ] );
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// hour
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else if ( values.size() == 1 )
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return checkRange( now->tm_hour, values[ 0 ], values[ 0 ] );
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else return Undefined();
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}
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};
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void registerFunctions( ExecState* exec, Object& global )
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{
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global.put( exec, "isPlainHostName",
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Object( new IsPlainHostName ) );
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global.put( exec, "dnsDomainIs",
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Object( new DNSDomainIs ) );
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global.put( exec, "localHostOrDomainIs",
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Object( new LocalHostOrDomainIs ) );
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global.put( exec, "isResolvable",
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Object( new IsResolvable ) );
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global.put( exec, "isInNet",
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Object( new IsInNet ) );
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global.put( exec, "dnsResolve",
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Object( new DNSResolve ) );
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global.put( exec, "myIpAddress",
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Object( new MyIpAddress ) );
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global.put( exec, "dnsDomainLevels",
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Object( new DNSDomainLevels ) );
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global.put( exec, "shExpMatch",
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Object( new ShExpMatch ) );
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global.put( exec, "weekdayRange",
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Object( new WeekdayRange ) );
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global.put( exec, "dateRange",
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Object( new DateRange ) );
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global.put( exec, "timeRange",
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Object( new TimeRange ) );
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}
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}
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namespace KPAC
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{
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Script::Script( const TQString& code )
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{
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ExecState* exec = m_interpreter.globalExec();
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Object global = m_interpreter.globalObject();
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registerFunctions( exec, global );
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Completion result = m_interpreter.evaluate( code );
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if ( result.complType() == Throw )
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throw Error( result.value().toString( exec ).qstring() );
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}
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TQString Script::evaluate( const KURL& url )
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{
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ExecState *exec = m_interpreter.globalExec();
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Value findFunc = m_interpreter.globalObject().get( exec, "FindProxyForURL" );
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Object findObj = Object::dynamicCast( findFunc );
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if (!findObj.isValid() || !findObj.implementsCall())
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throw Error( "No such function FindProxyForURL" );
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KURL cleanUrl = url;
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cleanUrl.setPass(TQString());
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cleanUrl.setUser(TQString());
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if (cleanUrl.protocol().lower() == "https") {
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cleanUrl.setPath(TQString());
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cleanUrl.setQuery(TQString());
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}
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Object thisObj;
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List args;
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args.append(String(cleanUrl.url()));
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args.append(String(cleanUrl.host()));
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Value retval = findObj.call( exec, thisObj, args );
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if ( exec->hadException() ) {
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Value ex = exec->exception();
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exec->clearException();
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throw Error( ex.toString( exec ).qstring() );
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}
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return retval.toString( exec ).qstring();
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}
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}
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