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/*
Kopete Groupwise Protocol
coreprotocol.h- the core GroupWise protocol
Copyright (c) 2004 SUSE Linux AG http://www.suse.com
Based on Iris, Copyright (C) 2003 Justin Karneges
url_escape_string from Gaim src/protocols/novell/nmconn.c
Copyright (c) 2004 Novell, Inc. All Rights Reserved
Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
*************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
*************************************************************************
*/
#include <string.h>
#include <iostream>
#include <stdlib.h>
#include <tqdatastream.h>
#include <tqdatetime.h>
#include <tqtextstream.h>
#include <kdebug.h>
#include <kurl.h>
#include "eventprotocol.h"
#include "eventtransfer.h"
#include "gwerror.h"
#include "gwfield.h"
#include "request.h"
#include "response.h"
#include "responseprotocol.h"
#include "coreprotocol.h"
#define NO_ESCAPE(ch) ((ch == 0x20) || (ch >= 0x30 && ch <= 0x39) || (ch >= 0x41 && ch <= 0x5a) || (ch >= 0x61 && ch <= 0x7a))
#define GW_URLVAR_TAG "&tag="
#define GW_URLVAR_METHOD "&cmd="
#define GW_URLVAR_VAL "&val="
#define GW_URLVAR_TYPE "&type="
//#define GW_COREPROTOCOL_DEBUG
QCString
url_escape_string( const char *src)
{
uint escape = 0;
const char *p;
uint q;
//char *encoded = NULL;
int ch;
static const char hex_table[17] = "0123456789abcdef";
if (src == NULL) {
return TQCString();
}
/* Find number of chars to escape */
for (p = src; *p != '\0'; p++) {
ch = (uchar) *p;
if (!NO_ESCAPE(ch)) {
escape++;
}
}
TQCString encoded((p - src) + (escape * 2) + 1);
/* Escape the string */
for (p = src, q = 0; *p != '\0'; p++) {
ch = (uchar) * p;
if (NO_ESCAPE(ch)) {
if (ch != 0x20) {
encoded.insert( q, (char)ch );
q++;
} else {
encoded.insert( q, '+' );
q++;
}
} else {
encoded.insert( q, '%' );
q++;
encoded.insert( q, hex_table[ch >> 4] );
q++;
encoded.insert( q, hex_table[ch & 15] );
q++;
}
}
encoded.insert( q, '\0' );
return encoded;
}
CoreProtocol::CoreProtocol() : TQObject()
{
m_eventProtocol = new EventProtocol( this, "eventprotocol" );
m_responseProtocol = new ResponseProtocol( this, "responseprotocol" );
}
CoreProtocol::~CoreProtocol()
{
}
int CoreProtocol::state()
{
return m_state;
}
void CoreProtocol::debug( const TQString &str )
{
#ifdef LIBGW_USE_KDEBUG
kdDebug( 14191 ) << "debug: " << str << endl;
#else
qDebug( "GW RAW PROTO: %s\n", str.ascii() );
#endif
}
void CoreProtocol::addIncomingData( const TQByteArray & incomingBytes )
{
// store locally
debug( "CoreProtocol::addIncomingData()");
int oldsize = m_in.size();
m_in.resize( oldsize + incomingBytes.size() );
memcpy( m_in.data() + oldsize, incomingBytes.data(), incomingBytes.size() );
m_state = Available;
// convert every event in the chunk to a Transfer, signalling it back to the clientstream
int parsedBytes = 0;
int transferCount = 0;
// while there is data left in the input buffer, and we are able to parse something out of it
while ( m_in.size() && ( parsedBytes = wireToTransfer( m_in ) ) )
{
transferCount++;
debug( TQString( "CoreProtocol::addIncomingData() - parsed transfer #%1 in chunk" ).arg( transferCount ) );
int size = m_in.size();
if ( parsedBytes < size )
{
debug( " - more data in chunk!" );
// copy the unparsed bytes into a new qbytearray and replace m_in with that
TQByteArray remainder( size - parsedBytes );
memcpy( remainder.data(), m_in.data() + parsedBytes, remainder.size() );
m_in = remainder;
}
else
m_in.truncate( 0 );
}
if ( m_state == NeedMore )
debug( " - message was incomplete, waiting for more..." );
if ( m_eventProtocol->state() == EventProtocol::OutOfSync )
{
debug( " - protocol thinks it's out of sync, discarding the rest of the buffer and hoping the server regains sync soon..." );
m_in.truncate( 0 );
}
debug( " - done processing chunk" );
}
Transfer* CoreProtocol::incomingTransfer()
{
debug( "CoreProtocol::incomingTransfer()" );
if ( m_state == Available )
{
debug( " - got a transfer" );
m_state = NoData;
return m_inTransfer;
m_inTransfer = 0;
}
else
{
debug( " - no milk today." );
return 0;
}
}
void cp_dump( const TQByteArray &bytes )
{
#ifdef LIBGW_DEBUG
CoreProtocol::debug( TQString( "contains: %1 bytes" ).arg( bytes.count() ) );
for ( uint i = 0; i < bytes.count(); ++i )
{
printf( "%02x ", bytes[ i ] );
}
printf( "\n" );
#else
Q_UNUSED(bytes);
#endif
}
void CoreProtocol::outgoingTransfer( Request* outgoing )
{
debug( "CoreProtocol::outgoingTransfer()" );
// Convert the outgoing data into wire format
Request * request = dynamic_cast<Request *>( outgoing );
Field::FieldList fields = request->fields();
if ( fields.isEmpty() )
{
debug( " CoreProtocol::outgoingTransfer: Transfer contained no fields, it must be a ping.");
/* m_error = NMERR_BAD_PARM;
return;*/
}
// Append field containing transaction id
Field::SingleField * fld = new Field::SingleField( NM_A_SZ_TRANSACTION_ID, NMFIELD_METHOD_VALID,
0, NMFIELD_TYPE_UTF8, request->transactionId() );
fields.append( fld );
// convert to QByteArray
TQByteArray bytesOut;
TQTextStream dout( bytesOut, IO_WriteOnly );
dout.setEncoding( TQTextStream::Latin1 );
//dout.setByteOrder( TQDataStream::LittleEndian );
// strip out any embedded host and port in the command string
TQCString command, host, port;
if ( request->command().section( ':', 0, 0 ) == "login" )
{
command = "login";
host = request->command().section( ':', 1, 1 ).ascii();
port = request->command().section( ':', 2, 2 ).ascii();
debug( TQString( "Host: %1 Port: %2" ).arg( host.data() ).arg( port.data() ) );
}
else
command = request->command().ascii();
// add the POST
dout << "POST /";
dout << command;
dout << " HTTP/1.0\r\n";
// if a login, add Host arg
if ( command == "login" )
{
dout << "Host: ";
dout << host; //FIXME: Get this from somewhere else!!
dout << ":" << port << "\r\n\r\n";
}
else
dout << "\r\n";
debug( TQString( "data out: %1" ).arg( bytesOut.data() ) );
emit outgoingData( bytesOut );
// now convert
fieldsToWire( fields );
delete request;
delete fld;
return;
}
void CoreProtocol::fieldsToWire( Field::FieldList fields, int depth )
{
debug( "CoreProtocol::fieldsToWire()");
int subFieldCount = 0;
// TODO: consider constructing this as a TQStringList and then join()ing it.
Field::FieldListIterator it;
Field::FieldListIterator end = fields.end();
Field::FieldBase* field;
for ( it = fields.begin(); it != end ; ++it )
{
field = *it;
//debug( " - writing a field" );
TQByteArray bytesOut;
TQDataStream dout( bytesOut, IO_WriteOnly );
dout.setByteOrder( TQDataStream::LittleEndian );
// these fields are ignored by Gaim's novell
if ( field->type() == NMFIELD_TYPE_BINARY || field->method() == NMFIELD_METHOD_IGNORE )
continue;
// GAIM writes these tags to the secure socket separately - if we can't connect, check here
// NM Protocol 1 writes them in an apparently arbitrary order
// tag
//dout.writeRawBytes( GW_URLVAR_TAG, sizeof( GW_URLVAR_TAG ) );
//dout << field->tag();
// method
//dout.writeRawBytes( GW_URLVAR_METHOD, sizeof( GW_URLVAR_METHOD ) );
// char methodChar = encode_method( field->method() );
//dout << (Q_UINT8)methodChar;
// value
//dout.writeRawBytes( GW_URLVAR_VAL, sizeof( GW_URLVAR_VAL ) );
char valString[ NMFIELD_MAX_STR_LENGTH ];
switch ( field->type() )
{
case NMFIELD_TYPE_UTF8: // Field contains UTF-8
case NMFIELD_TYPE_DN: // Field contains a Distinguished Name
{
//debug( " - it's a single string" );
const Field::SingleField *sField = static_cast<const Field::SingleField*>( field );
// TQString encoded = KURL::encode_string( sField->value().toString(), 106 /* UTF-8 */);
// encoded.replace( "%20", "+" );
// dout << encoded.ascii();
snprintf( valString, NMFIELD_MAX_STR_LENGTH, "%s", url_escape_string( sField->value().toString().utf8() ).data() );
//dout << sField->value().toString().ascii();
break;
}
case NMFIELD_TYPE_ARRAY: // Field contains a field array
case NMFIELD_TYPE_MV: // Field contains a multivalue
{
//debug( " - it's a multi" );
const Field::MultiField *mField = static_cast<const Field::MultiField*>( field );
subFieldCount = mField->fields().count(); // determines if we have a subarray to send after this field
//dout << TQString::number( subFieldCount ).ascii();
snprintf( valString, NMFIELD_MAX_STR_LENGTH, "%u", subFieldCount );
break;
}
default: // Field contains a numeric value
{
//debug( " - it's a number" );
const Field::SingleField *sField = static_cast<const Field::SingleField*>( field );
//dout << TQString::number( sField->value().toInt() ).ascii();
snprintf( valString, NMFIELD_MAX_STR_LENGTH, "%u", sField->value().toInt() );
}
}
// type
//dout.writeRawBytes( GW_URLVAR_TYPE, sizeof( GW_URLVAR_TYPE ) );
//dout << TQString::number( field->type() ).ascii();
TQCString typeString;
typeString.setNum( field->type() );
TQCString outgoing = GW_URLVAR_TAG + field->tag()
+ GW_URLVAR_METHOD + (char)encode_method( field->method() )
+ GW_URLVAR_VAL + (const char *)valString
+ GW_URLVAR_TYPE + typeString;
debug( TQString( "CoreProtocol::fieldsToWire - outgoing data: %1" ).arg( outgoing.data() ) );
dout.writeRawBytes( outgoing.data(), outgoing.length() );
// write what we have so far, we may be calling this function recursively
//kdDebug( 14999 ) << k_funcinfo << "writing \'" << bout << "\'" << endl;
//debug( " - signalling data" );
emit outgoingData( bytesOut );
// write fields of subarray, if that's what the current field is
if ( subFieldCount > 0 &&
( field->type() == NMFIELD_TYPE_ARRAY || field->type() == NMFIELD_TYPE_MV ) )
{
const Field::MultiField *mField = static_cast<const Field::MultiField*>( field );
fieldsToWire( mField->fields(), depth + 1 );
}
//debug( " - field done" );
}
if ( depth == 0 ) // this call to the function was not recursive, so the entire request has been sent at this point
{
// very important, don't send put the \r\n on the wire as a string or it will be preceded with the string length and 0 terminated, which the server reads as a request to disconnect.
TQByteArray bytesOut;
TQDataStream dout( bytesOut, IO_WriteOnly );
dout.setByteOrder( TQDataStream::LittleEndian );
dout.writeRawBytes( "\r\n", 2 );
emit outgoingData( bytesOut );
debug( "CoreProtocol::fieldsToWire - request completed" );
}
//debug( " - method done" );
}
int CoreProtocol::wireToTransfer( const TQByteArray& wire )
{
// processing incoming data and reassembling it into transfers
// may be an event or a response
uint bytesParsed = 0;
m_din = new TQDataStream( wire, IO_ReadOnly );
m_din->setByteOrder( TQDataStream::LittleEndian );
// look at first four bytes and decide what to do with the chunk
Q_UINT32 val;
if ( okToProceed() )
{
*m_din >> val;
// if is 'HTTP', it's a Response. PTTH it is after endian conversion
if ( !qstrncmp( (const char *)&val, "HTTP", strlen( "HTTP" ) ) ||
!qstrncmp( (const char *)&val, "PTTH", strlen( "PTTH" ) )
) {
Transfer * t = m_responseProtocol->parse( wire, bytesParsed );
if ( t )
{
m_inTransfer = t;
debug( "CoreProtocol::wireToTransfer() - got a RESPONSE " );
m_state = Available;
emit incomingData();
}
else
bytesParsed = 0;
}
else // otherwise -> Event code
{
debug( TQString( "CoreProtocol::wireToTransfer() - looks like an EVENT: %1, length %2" ).arg( val ).arg( wire.size() ) );
Transfer * t = m_eventProtocol->parse( wire, bytesParsed );
if ( t )
{
m_inTransfer = t;
debug( TQString( "CoreProtocol::wireToTransfer() - got an EVENT: %1, parsed: %2" ).arg( val ).arg( bytesParsed ) );
m_state = Available;
emit incomingData();
}
else
{
debug( "CoreProtocol::wireToTransfer() - EventProtocol was unable to parse it" );
bytesParsed = 0;
}
}
}
delete m_din;
return bytesParsed;
}
void CoreProtocol::reset()
{
m_in.resize( 0 );
}
TQChar CoreProtocol::encode_method( Q_UINT8 method )
{
TQChar str;
switch (method) {
case NMFIELD_METHOD_EQUAL:
str = 'G';
break;
case NMFIELD_METHOD_UPDATE:
str = 'F';
break;
case NMFIELD_METHOD_GTE:
str = 'E';
break;
case NMFIELD_METHOD_LTE:
str = 'D';
break;
case NMFIELD_METHOD_NE:
str = 'C';
break;
case NMFIELD_METHOD_EXIST:
str = 'B';
break;
case NMFIELD_METHOD_NOTEXIST:
str = 'A';
break;
case NMFIELD_METHOD_SEARCH:
str = '9';
break;
case NMFIELD_METHOD_MATCHBEGIN:
str = '8';
break;
case NMFIELD_METHOD_MATCHEND:
str = '7';
break;
case NMFIELD_METHOD_NOT_ARRAY:
str = '6';
break;
case NMFIELD_METHOD_OR_ARRAY:
str = '5';
break;
case NMFIELD_METHOD_AND_ARRAY:
str = '4';
break;
case NMFIELD_METHOD_DELETE_ALL:
str = '3';
break;
case NMFIELD_METHOD_DELETE:
str = '2';
break;
case NMFIELD_METHOD_ADD:
str = '1';
break;
default: /* NMFIEL D_METHOD_VALID */
str = '0';
break;
}
return str;
}
void CoreProtocol::slotOutgoingData( const TQCString &out )
{
debug( TQString( "CoreProtocol::slotOutgoingData() %1" ).arg( out ) );
}
bool CoreProtocol::okToProceed()
{
if ( m_din )
{
if ( m_din->atEnd() )
{
m_state = NeedMore;
debug( "CoreProtocol::okToProceed() - Server message ended prematurely!" );
}
else
return true;
}
return false;
}
#include "coreprotocol.moc"
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