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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */
/* Copyright (c) 2008-2017 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */
/* Copyright (c) 2014-2022 Ulrich Sibiller <uli42@gmx.de> */
/* Copyright (c) 2014-2019 Mihai Moldovan <ionic@ionic.de> */
/* Copyright (c) 2011-2022 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */
/* */
/* NXCOMP, NX protocol compression and NX extensions to this software */
/* are copyright of the aforementioned persons and companies. */
/* */
/* Redistribution and use of the present software is allowed according */
/* to terms specified in the file LICENSE.nxcomp which comes in the */
/* source distribution. */
/* */
/* All rights reserved. */
/* */
/* NOTE: This software has received contributions from various other */
/* contributors, only the core maintainers and supporters are listed as */
/* copyright holders. Please contact us, if you feel you should be listed */
/* as copyright holder, as well. */
/* */
/**************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "CreatePixmap.h"
#include "ClientCache.h"
#include "EncodeBuffer.h"
#include "DecodeBuffer.h"
#include "WriteBuffer.h"
//
// Set the verbosity level.
//
#define PANIC
#define WARNING
#undef TEST
#undef DEBUG
//
// Constructors and destructors.
//
CreatePixmapStore::CreatePixmapStore()
: MessageStore()
{
enableCache = CREATEPIXMAP_ENABLE_CACHE;
enableData = CREATEPIXMAP_ENABLE_DATA;
enableSplit = CREATEPIXMAP_ENABLE_SPLIT;
enableCompress = CREATEPIXMAP_ENABLE_COMPRESS;
dataLimit = CREATEPIXMAP_DATA_LIMIT;
dataOffset = CREATEPIXMAP_DATA_OFFSET;
cacheSlots = CREATEPIXMAP_CACHE_SLOTS;
cacheThreshold = CREATEPIXMAP_CACHE_THRESHOLD;
cacheLowerThreshold = CREATEPIXMAP_CACHE_LOWER_THRESHOLD;
messages_ -> resize(cacheSlots);
for (T_messages::iterator i = messages_ -> begin();
i < messages_ -> end(); i++)
{
*i = NULL;
}
temporary_ = NULL;
}
CreatePixmapStore::~CreatePixmapStore()
{
for (T_messages::iterator i = messages_ -> begin();
i < messages_ -> end(); i++)
{
destroy(*i);
}
destroy(temporary_);
}
//
// Here are the methods to handle messages' content.
//
int CreatePixmapStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
const unsigned int size, int bigEndian,
ChannelCache *channelCache) const
{
ClientCache *clientCache = (ClientCache *) channelCache;
encodeBuffer.encodeCachedValue(*(buffer + 1), 8,
clientCache -> depthCache);
encodeBuffer.encodeNewXidValue(GetULONG(buffer + 4, bigEndian),
clientCache -> lastId, clientCache -> lastIdCache,
clientCache -> drawableCache,
clientCache -> freeDrawableCache);
encodeBuffer.encodeXidValue(GetULONG(buffer + 8, bigEndian),
clientCache -> windowCache);
encodeBuffer.encodeCachedValue(GetUINT(buffer + 12, bigEndian), 16,
clientCache -> createPixmapXCache, 8);
encodeBuffer.encodeCachedValue(GetUINT(buffer + 14, bigEndian), 16,
clientCache -> createPixmapYCache, 8);
#ifdef TEST
*logofs << name() << ": Encoded message. Size is "
<< size << ".\n" << logofs_flush;
#endif
return 1;
}
int CreatePixmapStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
unsigned int &size, int bigEndian, WriteBuffer *writeBuffer,
ChannelCache *channelCache) const
{
ClientCache *clientCache = (ClientCache *) channelCache;
unsigned char cValue;
unsigned int value;
size = 16;
buffer = writeBuffer -> addMessage(size);
decodeBuffer.decodeCachedValue(cValue, 8,
clientCache -> depthCache);
*(buffer + 1) = cValue;
decodeBuffer.decodeNewXidValue(value,
clientCache -> lastId, clientCache -> lastIdCache,
clientCache -> drawableCache,
clientCache -> freeDrawableCache);
PutULONG(value, buffer + 4, bigEndian);
decodeBuffer.decodeXidValue(value,
clientCache -> windowCache);
PutULONG(value, buffer + 8, bigEndian);
decodeBuffer.decodeCachedValue(value, 16,
clientCache -> createPixmapXCache, 8);
PutUINT(value, buffer + 12, bigEndian);
decodeBuffer.decodeCachedValue(value, 16,
clientCache -> createPixmapYCache, 8);
PutUINT(value, buffer + 14, bigEndian);
#ifdef TEST
*logofs << name() << ": Decoded message. Size is "
<< size << ".\n" << logofs_flush;
#endif
return 1;
}
int CreatePixmapStore::parseIdentity(Message *message, const unsigned char *buffer,
unsigned int size, int bigEndian) const
{
CreatePixmapMessage *createPixmap = (CreatePixmapMessage *) message;
createPixmap -> depth = *(buffer + 1);
createPixmap -> id = GetULONG(buffer + 4, bigEndian);
createPixmap -> drawable = GetULONG(buffer + 8, bigEndian);
createPixmap -> width = GetUINT(buffer + 12, bigEndian);
createPixmap -> height = GetUINT(buffer + 14, bigEndian);
#ifdef TEST
*logofs << name() << ": Parsed identity. Size is "
<< createPixmap -> size_ << " identity is "
<< createPixmap -> i_size_ << ".\n"
<< logofs_flush;
#endif
return 1;
}
int CreatePixmapStore::unparseIdentity(const Message *message, unsigned char *buffer,
unsigned int size, int bigEndian) const
{
CreatePixmapMessage *createPixmap = (CreatePixmapMessage *) message;
*(buffer + 1) = createPixmap -> depth;
PutULONG(createPixmap -> id, buffer + 4, bigEndian);
PutULONG(createPixmap -> drawable, buffer + 8, bigEndian);
PutUINT(createPixmap -> width, buffer + 12, bigEndian);
PutUINT(createPixmap -> height, buffer + 14, bigEndian);
#ifdef TEST
*logofs << name() << ": Unparsed identity. Size is "
<< createPixmap -> size_ << " identity is "
<< createPixmap -> i_size_ << ".\n"
<< logofs_flush;
#endif
return 1;
}
void CreatePixmapStore::dumpIdentity(const Message *message) const
{
#ifdef DUMP
#ifdef WARNING
*logofs << name() << ": WARNING! Dump of identity not implemented.\n"
<< logofs_flush;
#endif
#endif
}
void CreatePixmapStore::identityChecksum(const Message *message, const unsigned char *buffer,
unsigned int size, int bigEndian) const
{
md5_append(md5_state_, buffer + 1, 1);
md5_append(md5_state_, buffer + 8, 8);
}
void CreatePixmapStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
const Message *cachedMessage,
ChannelCache *channelCache) const
{
CreatePixmapMessage *createPixmap = (CreatePixmapMessage *) message;
CreatePixmapMessage *cachedCreatePixmap = (CreatePixmapMessage *) cachedMessage;
ClientCache *clientCache = (ClientCache *) channelCache;
encodeBuffer.encodeNewXidValue(createPixmap -> id,
clientCache -> lastId, clientCache -> lastIdCache,
clientCache -> drawableCache,
clientCache -> freeDrawableCache);
cachedCreatePixmap -> id = createPixmap -> id;
#ifdef TEST
*logofs << name() << ": Encoded update. Size is "
<< createPixmap -> size_ << " identity is "
<< createPixmap -> i_size_ << ".\n"
<< logofs_flush;
#endif
}
void CreatePixmapStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
ChannelCache *channelCache) const
{
CreatePixmapMessage *createPixmap = (CreatePixmapMessage *) message;
ClientCache *clientCache = (ClientCache *) channelCache;
decodeBuffer.decodeNewXidValue(createPixmap -> id,
clientCache -> lastId, clientCache -> lastIdCache,
clientCache -> drawableCache,
clientCache -> freeDrawableCache);
#ifdef TEST
*logofs << name() << ": Decoded update. Size is "
<< createPixmap -> size_ << " identity is "
<< createPixmap -> i_size_ << ".\n"
<< logofs_flush;
#endif
}
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