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tdenetwork/dcoprss/xmlrpciface.cpp

401 lines
12 KiB

/*
* kxmlrpcclient.cpp - (c) 2003 Frerich Raabe <raabe@kde.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "xmlrpciface.h"
#include <kdebug.h>
#include <tdeio/job.h>
#include <tdelocale.h>
#include <kmdcodec.h>
#include <tqdom.h>
using namespace KXMLRPC;
Query *Query::create( TQObject *parent, const char *name )
{
return new Query( parent, name );
}
void Query::call( const TQString &server, const TQString &method,
const TQValueList<TQVariant> &args, const TQString &userAgent )
{
m_buffer.open( IO_ReadWrite );
m_server = server;
m_method = method;
m_args = args;
const TQString xmlMarkup = markupCall( method, args );
TQByteArray postData;
TQDataStream stream( postData, IO_WriteOnly );
stream.writeRawBytes( xmlMarkup.utf8(), xmlMarkup.length() );
TDEIO::TransferJob *job = TDEIO::http_post( KURL( server ), postData, false );
job->addMetaData( "UserAgent", userAgent );
job->addMetaData( "content-type", "Content-Type: text/xml; charset=utf-8" );
connect( job, TQT_SIGNAL( infoMessage( TDEIO::Job *, const TQString & ) ),
this, TQT_SLOT( slotInfoMessage( TDEIO::Job *, const TQString & ) ) );
connect( job, TQT_SIGNAL( data( TDEIO::Job *, const TQByteArray & ) ),
this, TQT_SLOT( slotData( TDEIO::Job *, const TQByteArray & ) ) );
connect( job, TQT_SIGNAL( result( TDEIO::Job * ) ),
this, TQT_SLOT( slotResult( TDEIO::Job * ) ) );
}
void Query::slotInfoMessage( TDEIO::Job *, const TQString &msg )
{
emit infoMessage( msg );
}
void Query::slotData( TDEIO::Job *, const TQByteArray &data )
{
m_buffer.writeBlock( data );
}
void Query::slotResult( TDEIO::Job *job )
{
Result response;
response.m_server = m_server;
response.m_method = m_method;
response.m_args = m_args;
response.m_success = false;
if ( job->error() != 0 ) {
response.m_errorCode = job->error();
response.m_errorString = job->errorString();
emit finished( response );
delete this;
return;
}
TQDomDocument doc;
if ( !doc.setContent( m_buffer.buffer() ) ) {
response.m_errorCode = -1;
response.m_errorString = i18n( "Received invalid XML markup" );
emit finished( response );
delete this;
return;
}
m_buffer.close();
if ( isMessageResponse( doc ) )
response = parseMessageResponse( doc );
else if ( isFaultResponse( doc ) )
response = parseFaultResponse( doc );
else {
response.m_errorCode = 1;
response.m_errorString = i18n( "Unknown type of XML markup received" );
}
// parserMessageResponse and parseFaultResponse overwrite these fields.
response.m_server = m_server;
response.m_method = m_method;
response.m_args = m_args;
emit finished( response );
delete this;
}
bool Query::isMessageResponse( const TQDomDocument &doc ) const
{
return doc.documentElement().firstChild().toElement().tagName().lower() == "params";
}
Query::Result Query::parseMessageResponse( const TQDomDocument &doc ) const
{
Result response;
response.m_success = true;
TQDomNode paramNode = doc.documentElement().firstChild().firstChild();
while ( !paramNode.isNull() ) {
response.m_data << demarshal( paramNode.firstChild().toElement() );
paramNode = paramNode.nextSibling();
}
return response;
}
bool Query::isFaultResponse( const TQDomDocument &doc ) const
{
return doc.documentElement().firstChild().toElement().tagName().lower() == "fault";
}
Query::Result Query::parseFaultResponse( const TQDomDocument &doc ) const
{
Result response;
response.m_success = false;
TQDomNode errorNode = doc.documentElement().firstChild().firstChild();
const TQVariant errorVariant = demarshal( errorNode.toElement() );
response.m_errorCode = errorVariant.toMap()[ "faultCode" ].toInt();
response.m_errorString = errorVariant.toMap()[ "faultString" ].toString();
return response;
}
TQString Query::markupCall( const TQString &cmd,
const TQValueList<TQVariant> &args ) const
{
TQString markup = "<?xml version='1.0' ?><methodCall>";
markup += "<methodName>" + cmd + "</methodName>";
if ( !args.isEmpty() ) {
markup += "<params>";
TQValueList<TQVariant>::ConstIterator it = args.begin();
TQValueList<TQVariant>::ConstIterator end = args.end();
for ( ; it != end; ++it )
markup += "<param>" + marshal( *it ) + "</param>";
markup += "</params>";
}
markup += "</methodCall>";
return markup;
}
TQString Query::marshal( const TQVariant &arg )
{
TQString s = "<value>";
switch ( arg.type() ) {
case TQVariant::String:
case TQVariant::CString:
s += "<string>" + arg.toString() + "</string>";
break;
case TQVariant::Int:
s += "<int>" + TQString::number( arg.toInt() ) + "</int>";
break;
case TQVariant::Double:
s += "<double>" + TQString::number( arg.toDouble() ) + "</double>";
break;
case TQVariant::Bool:
s += "<boolean>";
s += arg.toBool() ? "true" : "false";
s += "</boolean>";
break;
case TQVariant::ByteArray:
s += "<base64>" + KCodecs::base64Encode( arg.toByteArray() ) + "</base64>";
break;
case TQVariant::DateTime:
s += "<datetime.iso8601>" + arg.toDateTime().toString( Qt::ISODate ) + "</datetime.iso8601>";
break;
case TQVariant::List: {
s += "<array><data>";
const TQValueList<TQVariant> args = arg.toList();
TQValueList<TQVariant>::ConstIterator it = args.begin();
TQValueList<TQVariant>::ConstIterator end = args.end();
for ( ; it != end; ++it )
s += marshal( *it );
s += "</data></array>";
break;
}
case TQVariant::Map: {
s += "<struct>";
TQStringVariantMap map = arg.toMap();
TQStringVariantMap::ConstIterator it = map.begin();
TQStringVariantMap::ConstIterator end = map.end();
for ( ; it != end; ++it ) {
s += "<member>";
s += "<name>" + it.key() + "</name>";
s += marshal( it.data() );
s += "</member>";
}
s += "</struct>";
break;
}
default:
kdWarning() << "Failed to marshal unknown variant type: " << arg.type() << endl;
return "<value/>";
};
return s + "</value>";
}
TQVariant Query::demarshal( const TQDomElement &elem )
{
Q_ASSERT( elem.tagName().lower() == "value" );
if ( !elem.firstChild().isElement() )
return TQVariant( elem.text() );
const TQDomElement typeElement = elem.firstChild().toElement();
const TQString typeName = typeElement.tagName().lower();
if ( typeName == "string" )
return TQVariant( typeElement.text() );
else if ( typeName == "i4" || typeName == "int" )
return TQVariant( typeElement.text().toInt() );
else if ( typeName == "double" )
return TQVariant( typeElement.text().toDouble() );
else if ( typeName == "boolean" ) {
if ( typeElement.text().lower() == "true" || typeElement.text() == "1" )
return TQVariant( true );
else
return TQVariant( false );
} else if ( typeName == "base64" )
return TQVariant( KCodecs::base64Decode( TQCString(typeElement.text().latin1() )) );
else if ( typeName == "datetime" || typeName == "datetime.iso8601" )
return TQVariant( TQDateTime::fromString( typeElement.text(), Qt::ISODate ) );
else if ( typeName == "array" ) {
TQValueList<TQVariant> values;
TQDomNode valueNode = typeElement.firstChild().firstChild();
while ( !valueNode.isNull() ) {
values << demarshal( valueNode.toElement() );
valueNode = valueNode.nextSibling();
}
return TQVariant( values );
} else if ( typeName == "struct" ) {
TQStringVariantMap map;
TQDomNode memberNode = typeElement.firstChild();
while ( !memberNode.isNull() ) {
const TQString key = memberNode.toElement().elementsByTagName( "name" ).item( 0 ).toElement().text();
const TQVariant data = demarshal( memberNode.toElement().elementsByTagName( "value" ).item( 0 ).toElement() );
map[ key ] = data;
memberNode = memberNode.nextSibling();
}
return TQVariant( map );
} else
kdWarning() << "Cannot demarshal unknown type " << typeName << endl;
return TQVariant();
}
Query::Query( TQObject *parent, const char *name ) : TQObject( parent, name )
{
}
TQValueList<TQVariant> Server::toVariantList( const TQVariant &arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( int arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( bool arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( double arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( const TQString &arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( const TQCString &arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( const TQByteArray &arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( const TQDateTime &arg )
{
TQValueList<TQVariant> args;
args << arg ;
return args;
}
TQValueList<TQVariant> Server::toVariantList( const TQStringList &arg )
{
TQValueList<TQVariant> args;
TQStringList::ConstIterator it = arg.begin();
TQStringList::ConstIterator end = arg.end();
for ( ; it != end; ++it )
args << TQVariant( *it );
return args;
}
Server::Server( const KURL &url, TQObject *parent, const char *name )
: TQObject( parent, name )
{
if ( url.isValid() )
m_url = url;
}
void Server::setUrl( const KURL &url )
{
m_url = url.isValid() ? url : KURL();
}
void Server::call( const TQString &method, const TQValueList<TQVariant> &args,
TQObject *receiver, const char *slot )
{
if ( m_url.isEmpty() ) {
kdWarning() << "Cannot execute call to " << method << ": empty server URL" << endl;
return;
}
Query *query = Query::create( this );
connect( query, TQT_SIGNAL( infoMessage( const TQString & ) ),
this, TQT_SIGNAL( infoMessage( const TQString & ) ) );
connect( query, TQT_SIGNAL( finished( const KXMLRPC::Query::Result & ) ),
receiver, slot );
query->call( m_url.url(), method, args, m_userAgent );
}
void Server::call( const TQString &method, const TQValueList<TQVariant> &args,
TQObject *receiver, const char *slot,
TQObject *infoObject, const char *infoSlot )
{
if ( m_url.isEmpty() ) {
kdWarning() << "Cannot execute call to " << method << ": empty server URL" << endl;
return;
}
Query *query = Query::create( this );
connect( query, TQT_SIGNAL( infoMessage( const TQString &msg ) ),
infoObject, infoSlot );
connect( query, TQT_SIGNAL( finished( const KXMLRPC::Query::Result & ) ),
receiver, slot );
query->call( m_url.url(), method, args, m_userAgent );
}
#include "xmlrpciface.moc"