Example #1
0
/* Set @string to the value of the given @node, however, with strings
 * compressed and entity references 'expanded'. */
static void
set_enhanced_dom_node_value(struct dom_string *string, struct dom_node *node)
{
	struct dom_string *value;

	assert(node);

	memset(string, 0, sizeof(*string));

	switch (node->type) {
	case DOM_NODE_ENTITY_REFERENCE:
		/* FIXME: Set to the entity value. */
		string->string = null_or_stracpy(string->string);
		break;

	default:
		value = get_dom_node_value(node);
		if (!value) {
			set_dom_string(string, NULL, 0);
			return;
		}

		string->string = compress_string(value->string, value->length);
	}

	string->length = string->string ? strlen((const char *)string->string) : 0;
}
Example #2
0
// Compress and Base64-encode
bool OTASCIIArmor::SetString(const String& strData, bool bLineBreaks) //=true
{
    Release();

    if (strData.GetLength() < 1) return true;

    std::string stdstring = std::string(strData.Get());
    std::string str_compressed = compress_string(stdstring);

    // "Success"
    if (str_compressed.size() == 0) {
        otErr << "OTASCIIArmor::" << __FUNCTION__ << ": compression fail 0.\n";
        return false;
    }

    char* pString = App::Me().Crypto().Util().Base64Encode(
        reinterpret_cast<const uint8_t*>((str_compressed.data())),
        static_cast<int32_t>(str_compressed.size()), bLineBreaks);

    if (!pString) {
        otErr << "OTASCIIArmor::" << __FUNCTION__ << ": Base64Encode fail.\n";
        return false;
    }

    Set(pString);
    delete[] pString;
    return true;
}
Example #3
0
/*
 * serializeNode -
 * This is used on the query dispatcher to serialize Plan and Query Trees for
 * dispatching to qExecs.
 * The returned string is palloc'ed in the current memory context.
 */
char *
serializeNode(Node *node, int *size, int *uncompressed_size_out)
{
	char	   *pszNode;
	char	   *sNode;
	int		   uncompressed_size;

	Assert(node != NULL);
	Assert(size != NULL);
	START_MEMORY_ACCOUNT(MemoryAccounting_CreateAccount(0, MEMORY_OWNER_TYPE_Serializer));
	{
		pszNode = nodeToBinaryStringFast(node, &uncompressed_size);
		Assert(pszNode != NULL);
	
		if (NULL != uncompressed_size_out)
		{
			*uncompressed_size_out = uncompressed_size;
		}
		sNode = compress_string(pszNode, uncompressed_size, size);
		pfree(pszNode);

		if (DEBUG5 >= log_min_messages)
		{
			Node * newnode = NULL;
			PG_TRY();
			{
				newnode = deserializeNode(sNode, *size);
			}
			PG_CATCH();
			{
				elog_node_display(DEBUG5, "Before serialization", node, true);
				PG_RE_THROW();
			}
			PG_END_TRY();

			/* Some plans guarantee these differences (see serialization
			 * of plan nodes -- they avoid sending QD-only info out) */
			if (strcmp(nodeToString(node), nodeToString(newnode)) != 0)
			{
				elog_node_display(DEBUG5, "Before serialization", node, true);

				elog_node_display(DEBUG5, "After deserialization", newnode, true);
			}
		}
	}
	END_MEMORY_ACCOUNT();

	return sNode;
}
Example #4
0
File: transmit.c Project: xalt/xalt
void transmit(const char* transmission, const char* jsonStr, const char* kind, const char* key,
              const char* syshost, char* resultFn)
{
  char * cmdline;
  char * p_dbg        = getenv("XALT_TRACING");
  int    xalt_tracing = (p_dbg && (strcmp(p_dbg,"yes")  == 0 ||
				   strcmp(p_dbg,"run")  == 0 ));

  if ((strcasecmp(transmission,"file")      != 0 ) &&
      (strcasecmp(transmission,"syslog")    != 0 ) && 
      (strcasecmp(transmission,"none")      != 0 ) && 
      (strcasecmp(transmission,"syslogv1")  != 0 ))
    transmission = "file";

  if (strcasecmp(transmission, "file") == 0 || strcasecmp(transmission, "file_separate_dirs") == 0 )
    {
      if (resultFn == NULL)
	{
	  DEBUG0(stderr,"  resultFn is NULL, $HOME might be undefined -> No XALT output\n");
	  return;
	}

      int err = mkpath(resultFn, 0700);
      if (err)
	{
	  if (xalt_tracing)
	    {
	      perror("Error: ");
	      fprintf(stderr,"  unable to mkpath(%s) -> No XALT output\n", resultFn);
	    }
	  return;
	}

      FILE* fp = fopen(resultFn,"w");
      if (fp == NULL && xalt_tracing)
	fprintf(stderr,"  Unable to open: %s -> No XALT output\n", resultFn);
      else
        {
          fprintf(fp, "%s\n", jsonStr);
          fclose(fp);
          DEBUG2(stderr,"  Wrote json %s file : %s\n",kind, resultFn);
        }
    }
  else if (strcasecmp(transmission, "syslogv1") == 0)
    {
      int   zslen;
      int   b64len;
      char* zs      = compress_string(jsonStr,&zslen);
      char* b64     = base64_encode(zs, zslen, &b64len);
      
      asprintf(&cmdline, "PATH=%s logger -t XALT_LOGGING_%s \"%s:%s\"\n",XALT_SYSTEM_PATH, syshost, kind, b64);
      system(cmdline);
      free(zs);
      free(b64);
      free(cmdline);
      
    }
  else if (strcasecmp(transmission, "syslog") == 0)
    {
      int   sz;
      int   zslen;
      char* zs      = compress_string(jsonStr, &zslen);
      char* b64     = base64_encode(zs, zslen, &sz);
      
      int   blkSz   = (sz < syslog_msg_sz) ? sz : syslog_msg_sz;
      int   nBlks   = (sz -  1)/blkSz + 1;
      int   istrt   = 0;
      int   iend    = blkSz;
      int   i;

      for (i = 0; i < nBlks; i++)
        {
          asprintf(&cmdline, "PATH=%s logger -t XALT_LOGGING_%s V:2 kind:%s idx:%d nb:%d syshost:%s key:%s value:%.*s\n",
                   XALT_SYSTEM_PATH, syshost, kind, i, nBlks, syshost, key, iend-istrt, &b64[istrt]);
          system(cmdline);
          free(cmdline);
          istrt = iend;
          iend  = istrt + blkSz;
          if (iend > sz)
            iend = sz;
        }
      free(b64);
    }
}
Example #5
0
/// This function first Packs the incoming string, using whatever is the default packer. (MsgPack or Protobuf).
/// Then it Compresses the packed binary data using zlib. (ezcompress.)
/// Then it Base64-Encodes the compressed binary and sets it as a string on THIS OBJECT.
/// 
/// I added these pieces 1-by-1 over time. At first the messages were too int64_t, so I started compressing them.
/// Then they were not binary compatible across various platforms, so I added the packing.
//
bool OTASCIIArmor::SetAndPackString(const OTString & strData, bool bLineBreaks) //=true
{	
	Release();
	
	if (strData.GetLength() < 1)
		return true;
	// --------------------------------------------------------
	OTDB::OTPacker * pPacker = OTASCIIArmor::GetPacker(); // No need to check for failure, since this already ASSERTS. No need to cleanup either.
	
	// Here I use the default storage context to create the object (the blob.)
	// I also originally created OTASCIIArmor::GetPacker() using OTDB_DEFAULT_PACKER,
	// so I know everything is compatible.
	//
	OTDB::OTDBString * pOTDBString = dynamic_cast<OTDB::OTDBString *>(OTDB::CreateObject(OTDB::STORED_OBJ_STRING));
	
	OT_ASSERT(NULL != pOTDBString); // Beyond this point, responsible to delete pString.
	OTCleanup<OTDB::OTDBString> theStringAngel(*pOTDBString); // make sure memory is cleaned up.
	// -----------------------------
	const uint32_t	theStringSize32	= strData.GetLength();
	const size_t	theStringSize	= theStringSize32; // might need a cast here. // todo make sure this will handle sizes as big as I need.
	
	pOTDBString->m_string.assign(strData.Get(), // const char * 
								 theStringSize);
	
	OTDB::PackedBuffer * pBuffer = pPacker->Pack(*pOTDBString); // Now we PACK our string before compressing/encoding it.
	
	if (NULL == pBuffer)
	{
		OTLog::Error("Failed packing string in OTASCIIArmor::SetAndPackString. \n");
		return false;
	}
	
	OTCleanup<OTDB::PackedBuffer> theBufferAngel(*pBuffer); // make sure memory is cleaned up.
	// --------------------------------------------------------
    std::string str_packed(reinterpret_cast<const char *>(pBuffer->GetData()), pBuffer->GetSize());
    
    std::string str_compressed = compress_string( str_packed );
    
	// Success
    if (str_compressed.size())
	{
		// Now let's base-64 encode it...
        // TODO: remove static cast, add check for longer than 'int32_t' length? (da2ce7)
        char * pString = OTCrypto::It()->Base64Encode((const uint8_t*)(str_compressed.data()), static_cast<int32_t>(str_compressed.size()), bLineBreaks);
		
		if (pString)
		{
			Set(pString);
			delete [] pString; pString=NULL; 
			return true;
		}
		else 
		{
			OTLog::vError("OTASCIIArmor::%s: pString NULL.\n", __FUNCTION__);
		}
	}
	else 
	{
		OTLog::vError("OTASCIIArmor::%s: nDestLen 0.\n", __FUNCTION__);
	}
		
	return false;	
}