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Diffstat (limited to 'nxcomp/GetImageReply.cpp')
| -rw-r--r-- | nxcomp/GetImageReply.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/nxcomp/GetImageReply.cpp b/nxcomp/GetImageReply.cpp new file mode 100644 index 000000000..d4bc21b5a --- /dev/null +++ b/nxcomp/GetImageReply.cpp @@ -0,0 +1,185 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2010 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of NoMachine. Redistribution and use of the present */ +/* software is allowed according to terms specified in the file LICENSE */ +/* which comes in the source distribution. */ +/* */ +/* Check http://www.nomachine.com/licensing.html for applicability. */ +/* */ +/* NX and NoMachine are trademarks of Medialogic S.p.A. */ +/* */ +/* All rights reserved. */ +/* */ +/**************************************************************************/ + +#include "GetImageReply.h" + +#include "ServerCache.h" + +#include "EncodeBuffer.h" +#include "DecodeBuffer.h" + +// +// Set the verbosity level. +// + +#define PANIC +#define WARNING +#undef TEST +#undef DEBUG +#undef DUMP + +// +// Constructors and destructors. +// + +GetImageReplyStore::GetImageReplyStore(StaticCompressor *compressor) + + : MessageStore(compressor) +{ + enableCache = GETIMAGEREPLY_ENABLE_CACHE; + enableData = GETIMAGEREPLY_ENABLE_DATA; + enableSplit = GETIMAGEREPLY_ENABLE_SPLIT; + enableCompress = GETIMAGEREPLY_ENABLE_COMPRESS; + + if (control -> isProtoStep7() == 1) + { + enableCompress = GETIMAGEREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7; + } + + dataLimit = GETIMAGEREPLY_DATA_LIMIT; + dataOffset = GETIMAGEREPLY_DATA_OFFSET; + + cacheSlots = GETIMAGEREPLY_CACHE_SLOTS; + cacheThreshold = GETIMAGEREPLY_CACHE_THRESHOLD; + cacheLowerThreshold = GETIMAGEREPLY_CACHE_LOWER_THRESHOLD; + + messages_ -> resize(cacheSlots); + + for (T_messages::iterator i = messages_ -> begin(); + i < messages_ -> end(); i++) + { + *i = NULL; + } + + temporary_ = NULL; +} + +GetImageReplyStore::~GetImageReplyStore() +{ + for (T_messages::iterator i = messages_ -> begin(); + i < messages_ -> end(); i++) + { + destroy(*i); + } + + destroy(temporary_); +} + +// +// Here are the methods to handle messages' content. +// + +int GetImageReplyStore::parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + GetImageReplyMessage *getImageReply = (GetImageReplyMessage *) message; + + // + // Here is the fingerprint. + // + + getImageReply -> depth = *(buffer + 1); + + getImageReply -> visual = GetULONG(buffer + 8, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Parsed identity for message at " + << message << ".\n" << logofs_flush; + #endif + + return 1; +} + +int GetImageReplyStore::unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + GetImageReplyMessage *getImageReply = (GetImageReplyMessage *) message; + + // + // Fill all the message's fields. + // + + *(buffer + 1) = getImageReply -> depth; + + PutULONG(getImageReply -> visual, buffer + 8, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Unparsed identity for message at " + << message << ".\n" << logofs_flush; + #endif + + return 1; +} + +void GetImageReplyStore::dumpIdentity(const Message *message) const +{ + #ifdef DUMP + + GetImageReplyMessage *getImageReply = (GetImageReplyMessage *) message; + + *logofs << name() << ": Identity depth " << (unsigned) getImageReply -> depth + << ", visual " << getImageReply -> visual << ", size " + << getImageReply -> size_ << ".\n"; + + #endif +} + +void GetImageReplyStore::identityChecksum(const Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + // + // Field depth. + // + + md5_append(md5_state_, buffer + 1, 1); +} + +void GetImageReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, + ChannelCache *channelCache) const +{ + // + // Encode the variant part. + // + + GetImageReplyMessage *getImageReply = (GetImageReplyMessage *) message; + + ServerCache *serverCache = (ServerCache *) channelCache; + + #ifdef TEST + *logofs << name() << ": Encoding value " << getImageReply -> visual + << " as visual field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeCachedValue(getImageReply -> visual, 29, + serverCache -> visualCache); +} + +void GetImageReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, + ChannelCache *channelCache) const +{ + // + // Decode the variant part. + // + + GetImageReplyMessage *getImageReply = (GetImageReplyMessage *) message; + + ServerCache *serverCache = (ServerCache *) channelCache; + + decodeBuffer.decodeCachedValue(getImageReply -> visual, 29, + serverCache -> visualCache); +} |