diff options
Diffstat (limited to 'nxcomp/src/GetImageReply.cpp')
| -rw-r--r-- | nxcomp/src/GetImageReply.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/nxcomp/src/GetImageReply.cpp b/nxcomp/src/GetImageReply.cpp new file mode 100644 index 000000000..5100804ab --- /dev/null +++ b/nxcomp/src/GetImageReply.cpp @@ -0,0 +1,194 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ +/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ +/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ +/* Copyright (c) 2011-2016 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 "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; + + // Since ProtoStep7 (#issue 108) + 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); +} |