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

1 files changed, 258 insertions, 0 deletions

diff --git a/nxcomp/RenderGenericRequest.cpp b/nxcomp/RenderGenericRequest.cpp
new file mode 100755
index 000000000..576490164
--- /dev/null
+++ b/nxcomp/RenderGenericRequest.cpp
@@ -0,0 +1,258 @@
+/**************************************************************************/
+/*                                                                        */
+/* 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 "NXrender.h"
+
+#include "RenderExtension.h"
+#include "RenderGenericRequest.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
+
+//
+// Here are the methods to handle the messages' content.
+//
+
+int RenderGenericRequestStore::encodeMessage(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
+                                                 const unsigned int size, int bigEndian,
+                                                     ChannelCache *channelCache) const
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding full message.\n"
+          << logofs_flush;
+
+  unsigned char type = *(buffer + 1);
+
+  #endif
+
+  encodeBuffer.encodeCachedValue(size >> 2, 16,
+                     clientCache -> renderLengthCache, 5);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding full unhandled message. "
+          << "Type is " << (unsigned int) type << " size is "
+          << size << ".\n" << logofs_flush;
+  #endif
+
+  encodeIntData(encodeBuffer, buffer, 4, size,
+                    bigEndian, clientCache);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoded full message.\n"
+          << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int RenderGenericRequestStore::decodeMessage(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
+                                                 unsigned int &size, unsigned char type, int bigEndian,
+                                                     WriteBuffer *writeBuffer, ChannelCache *channelCache) const
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoding full message.\n"
+          << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(size, 16,
+                     clientCache -> renderLengthCache, 5);
+
+  size <<= 2;
+
+  buffer = writeBuffer -> addMessage(size);
+
+  *(buffer + 1) = type;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoding full unhandled message. "
+          << "Type is " << (unsigned int) type << " size is "
+          << size << ".\n" << logofs_flush;
+  #endif
+
+  decodeIntData(decodeBuffer, buffer, 4, size,
+                    bigEndian, clientCache);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded full message.\n"
+          << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void RenderGenericRequestStore::encodeData(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
+                                               unsigned int size, int bigEndian,
+                                                   ChannelCache *channelCache) const
+{
+}
+
+void RenderGenericRequestStore::decodeData(DecodeBuffer &decodeBuffer, unsigned char *buffer,
+                                               unsigned int size, int bigEndian,
+                                                   ChannelCache *channelCache) const
+{
+}
+
+int RenderGenericRequestStore::parseIdentity(Message *message, const unsigned char *buffer,
+                                                 unsigned int size, int bigEndian) const
+{
+  #ifdef DEBUG
+  *logofs << name() << ": Parsing identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  unsigned char type = *(buffer + 1);
+
+  renderExtension -> data.any.type = type;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsing unhandled identity. "
+          << "Type is " << (unsigned int) renderExtension -> data.any.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+
+  parseIntData(message, buffer, 4, size, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int RenderGenericRequestStore::unparseIdentity(const Message *message, unsigned char *buffer,
+                                                   unsigned int size, int bigEndian) const
+{
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsing identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  unsigned char type = renderExtension -> data.any.type;
+
+  *(buffer + 1) = type;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsing unhandled identity. "
+          << "Type is " << (unsigned int) renderExtension -> data.any.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+
+  unparseIntData(message, buffer, 4, size, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void RenderGenericRequestStore::identityChecksum(const Message *message, const unsigned char *buffer,
+                                                     unsigned int size, md5_state_t *md5_state,
+                                                         int bigEndian) const
+{
+  //
+  // Include the minor opcode in the checksum.
+  // Because the data offset can be beyond the
+  // real end of the message, we need to include
+  // the size or we will match any message whose
+  // size is less or equal to the data offset.
+  //
+
+  md5_append(md5_state, buffer + 1, 3);
+}
+
+void RenderGenericRequestStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                                   const Message *cachedMessage,
+                                                       ChannelCache *channelCache) const
+{
+  //
+  // Encode the variant part.
+  //
+
+  #ifdef DEBUG
+  *logofs << name() << ": Updating identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding unhandled update. "
+          << "Type is " << (unsigned int) renderExtension -> data.any.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+
+  updateIntData(encodeBuffer, message, cachedMessage, 4,
+                    renderExtension -> size_, channelCache);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Updated identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+}
+
+void RenderGenericRequestStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                                   ChannelCache *channelCache) const
+{
+  #ifdef DEBUG
+  *logofs << name() << ": Updating identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoding unhandled update. "
+          << "Type is " << (unsigned int) renderExtension -> data.any.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+
+  updateIntData(decodeBuffer, message, 4,
+                    renderExtension -> size_, channelCache);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Updated identity for message at "
+          << this << ".\n" << logofs_flush;
+  #endif
+}