/* 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;
}
// 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;
}
/*
* 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;
}
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);
}
}
/// 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;
}
