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authorReinhard Tartler <siretart@tauware.de>2011-11-13 09:27:51 +0100
committerReinhard Tartler <siretart@tauware.de>2011-11-13 09:27:51 +0100
commit3e924126b56c4d421e8263d25f6b14aa4ceed047 (patch)
tree921403de7b834fb1ac89f97d84ce105e0b487051 /nxcomp/GetPropertyReply.cpp
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nxcomp-3.1.0-4.tar.gznxcomp/3.1.0-4
Summary: Imported nxcomp-3.1.0-4.tar.gz Keywords: Imported nxcomp-3.1.0-4.tar.gz into Git repository
Diffstat (limited to 'nxcomp/GetPropertyReply.cpp')
-rwxr-xr-xnxcomp/GetPropertyReply.cpp295
1 files changed, 295 insertions, 0 deletions
diff --git a/nxcomp/GetPropertyReply.cpp b/nxcomp/GetPropertyReply.cpp
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+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2007 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 NoMachine S.r.l. */
+/* */
+/* All rights reserved. */
+/* */
+/**************************************************************************/
+
+#include "GetPropertyReply.h"
+
+#include "ServerCache.h"
+
+#include "EncodeBuffer.h"
+#include "DecodeBuffer.h"
+
+#include "WriteBuffer.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef TEST
+#undef DEBUG
+#undef DUMP
+
+//
+// Constructors and destructors.
+//
+
+GetPropertyReplyStore::GetPropertyReplyStore(StaticCompressor *compressor)
+
+ : MessageStore(compressor)
+{
+ enableCache = GETPROPERTYREPLY_ENABLE_CACHE;
+ enableData = GETPROPERTYREPLY_ENABLE_DATA;
+ enableSplit = GETPROPERTYREPLY_ENABLE_SPLIT;
+ enableCompress = GETPROPERTYREPLY_ENABLE_COMPRESS;
+
+ if (control -> isProtoStep7() == 1)
+ {
+ enableCompress = GETPROPERTYREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7;
+ }
+
+ dataLimit = GETPROPERTYREPLY_DATA_LIMIT;
+ dataOffset = GETPROPERTYREPLY_DATA_OFFSET;
+
+ cacheSlots = GETPROPERTYREPLY_CACHE_SLOTS;
+ cacheThreshold = GETPROPERTYREPLY_CACHE_THRESHOLD;
+ cacheLowerThreshold = GETPROPERTYREPLY_CACHE_LOWER_THRESHOLD;
+
+ messages_ -> resize(cacheSlots);
+
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ *i = NULL;
+ }
+
+ temporary_ = NULL;
+}
+
+GetPropertyReplyStore::~GetPropertyReplyStore()
+{
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ destroy(*i);
+ }
+
+ destroy(temporary_);
+}
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int GetPropertyReplyStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
+ const unsigned int size, int bigEndian,
+ ChannelCache *channelCache) const
+{
+ ServerCache *serverCache = (ServerCache *) channelCache;
+
+ #ifdef DEBUG
+ *logofs << name() << ": Encoding full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ unsigned char format = (unsigned int) *(buffer + 1);
+
+ encodeBuffer.encodeCachedValue(format, 8,
+ serverCache -> getPropertyFormatCache);
+
+ unsigned int numBytes = GetULONG(buffer + 16, bigEndian);
+
+ encodeBuffer.encodeValue(numBytes, 32, 9);
+
+ if (format == 16)
+ {
+ numBytes <<= 1;
+ }
+ else if (format == 32)
+ {
+ numBytes <<= 2;
+ }
+
+ encodeBuffer.encodeCachedValue(GetULONG(buffer + 8, bigEndian), 29,
+ serverCache -> getPropertyTypeCache, 9);
+
+ encodeBuffer.encodeValue(GetULONG(buffer + 12, bigEndian), 32, 9);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Encoded full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int GetPropertyReplyStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
+ unsigned int &size, int bigEndian, WriteBuffer *writeBuffer,
+ ChannelCache *channelCache) const
+{
+ ServerCache *serverCache = (ServerCache *) channelCache;
+
+ #ifdef DEBUG
+ *logofs << name() << ": Decoding full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ unsigned char format;
+
+ decodeBuffer.decodeCachedValue(format, 8,
+ serverCache -> getPropertyFormatCache);
+
+ unsigned int length;
+
+ decodeBuffer.decodeValue(length, 32, 9);
+
+ unsigned int numBytes = length;
+
+ if (format == 16)
+ {
+ numBytes <<= 1;
+ }
+ else if (format == 32)
+ {
+ numBytes <<= 2;
+ }
+
+ size = 32 + RoundUp4(numBytes);
+
+ buffer = writeBuffer -> addMessage(size);
+
+ *(buffer + 1) = format;
+
+ PutULONG(length, buffer + 16, bigEndian);
+
+ unsigned int value;
+
+ decodeBuffer.decodeCachedValue(value, 29,
+ serverCache -> getPropertyTypeCache, 9);
+
+ PutULONG(value, buffer + 8, bigEndian);
+
+ decodeBuffer.decodeValue(value, 32, 9);
+
+ PutULONG(value, buffer + 12, bigEndian);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Decoded full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int GetPropertyReplyStore::parseIdentity(Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message;
+
+ getPropertyReply -> format = *(buffer + 1);
+
+ getPropertyReply -> type = GetULONG(buffer + 8, bigEndian);
+ getPropertyReply -> after = GetULONG(buffer + 12, bigEndian);
+ getPropertyReply -> items = GetULONG(buffer + 16, bigEndian);
+
+ //
+ // Cleanup the padding bytes.
+ //
+
+ unsigned int uiLengthInBytes;
+ unsigned int uiFormat;
+
+ if ((int) size > GETPROPERTYREPLY_DATA_OFFSET)
+ {
+ uiLengthInBytes = getPropertyReply -> items;
+
+ uiFormat = *(buffer + 1);
+
+ #ifdef DEBUG
+ *logofs << name() << ": length " << uiLengthInBytes
+ << ", format " << uiFormat << ", size "
+ << size << ".\n" << logofs_flush;
+ #endif
+
+ if (uiFormat == 16)
+ {
+ uiLengthInBytes <<= 1;
+ }
+ else if (uiFormat == 32)
+ {
+ uiLengthInBytes <<= 2;
+ }
+
+ unsigned char *end = ((unsigned char *) buffer) + size;
+ unsigned char *pad = ((unsigned char *) buffer) + GETPROPERTYREPLY_DATA_OFFSET + uiLengthInBytes;
+
+ CleanData((unsigned char *) pad, end - pad);
+ }
+
+ #ifdef DEBUG
+ *logofs << name() << ": Parsed identity for message at "
+ << message << ".\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int GetPropertyReplyStore::unparseIdentity(const Message *message, unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message;
+
+ *(buffer + 1) = getPropertyReply -> format;
+
+ PutULONG(getPropertyReply -> type, buffer + 8, bigEndian);
+ PutULONG(getPropertyReply -> after, buffer + 12, bigEndian);
+ PutULONG(getPropertyReply -> items, buffer + 16, bigEndian);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Unparsed identity for message at "
+ << message << ".\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+void GetPropertyReplyStore::dumpIdentity(const Message *message) const
+{
+ #ifdef DUMP
+
+ GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message;
+
+ *logofs << name() << ": Identity format "
+ << (unsigned) getPropertyReply -> format << ", type "
+ << getPropertyReply -> type << ", after " << getPropertyReply -> after
+ << ", items " << getPropertyReply -> items << ", size "
+ << getPropertyReply -> size_ << ".\n";
+
+ #endif
+}
+
+void GetPropertyReplyStore::identityChecksum(const Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ //
+ // Fields format, type, after, items.
+ //
+
+ md5_append(md5_state_, buffer + 1, 1);
+ md5_append(md5_state_, buffer + 8, 12);
+}
+
+void GetPropertyReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+ const Message *cachedMessage,
+ ChannelCache *channelCache) const
+{
+}
+
+void GetPropertyReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+ ChannelCache *channelCache) const
+{
+}