static int FetchAndVerifyConfigFile(TCascStorage * hs, PQUERY_KEY pFileKey, PQUERY_KEY pFileBlob)
{
TCHAR * szFileName;
int nError;
// Construct the local file name
szFileName = NewStr(hs->szDataPath, 8 + 3 + 3 + 32);
if(szFileName == NULL)
return ERROR_NOT_ENOUGH_MEMORY;
// Add the part where the config file path is
AppendConfigFilePath(szFileName, pFileKey);
// Load the config file
nError = LoadTextFile(szFileName, pFileBlob);
if(nError == ERROR_SUCCESS)
{
// Verify the blob's MD5
if(!VerifyDataBlockHash(pFileBlob->pbData, pFileBlob->cbData, pFileKey->pbData))
{
FreeCascBlob(pFileBlob);
nError = ERROR_BAD_FORMAT;
}
}
CASC_FREE(szFileName);
return nError;
}
// Checks whether there is a ".agent.db". If yes, the function
// sets "szRootPath" and "szDataPath" in the storage structure
// and returns ERROR_SUCCESS
int CheckGameDirectory(TCascStorage * hs, TCHAR * szDirectory)
{
QUERY_KEY AgentFile;
TCHAR * szFilePath;
size_t nLength = 0;
char * szValue;
int nError = ERROR_FILE_NOT_FOUND;
// Create the full name of the .agent.db file
szFilePath = CombinePath(szDirectory, _T(".agent.db"));
if(szFilePath != NULL)
{
// Load the file to memory
nError = LoadTextFile(szFilePath, &AgentFile);
if(nError == ERROR_SUCCESS)
{
// Extract the data directory from the ".agent.db" file
szValue = ExtractStringVariable(&AgentFile, "data_dir", &nLength);
if(szValue != NULL)
{
hs->szRootPath = CascNewStr(szDirectory, 0);
hs->szDataPath = CombinePathAndString(szDirectory, szValue, nLength);
nError = (hs->szDataPath != NULL) ? ERROR_SUCCESS : ERROR_NOT_ENOUGH_MEMORY;
}
// Free the loaded blob
FreeCascBlob(&AgentFile);
}
// Freee the file path
CASC_FREE(szFilePath);
}
return nError;
}
static int ParseFile_BuildDb(TCascStorage * hs, void * pvListFile)
{
QUERY_KEY TagString = {NULL, 0};
CASC_CSV Csv;
int nError;
// Load the single line from the text file
if(Csv.LoadNextLine(pvListFile) == 0)
return ERROR_BAD_FORMAT;
// Extract the CDN build key
nError = Csv.GetData(hs->CdnBuildKey, 0, true);
if (nError != ERROR_SUCCESS)
return nError;
// Load the CDN config key
nError = Csv.GetData(hs->CdnConfigKey, 1, true);
if (nError != ERROR_SUCCESS)
return nError;
// Load the the tags
nError = Csv.GetData(TagString, 2, false);
if (nError == ERROR_SUCCESS && TagString.pbData != NULL)
{
GetDefaultLocaleMask(hs, &TagString);
FreeCascBlob(&TagString);
}
// Load the URL
hs->szCdnList = Csv.GetString(3);
if (hs->szCdnList == NULL)
return ERROR_NOT_ENOUGH_MEMORY;
// Verify all variables
if (hs->CdnBuildKey.pbData == NULL || hs->CdnConfigKey.pbData == NULL)
nError = ERROR_BAD_FORMAT;
return nError;
}
int LoadBuildInfo(TCascStorage * hs)
{
QUERY_KEY InfoFile = {NULL, 0};
QUERY_KEY FileData = {NULL, 0};
TCHAR * szAgentFile;
TCHAR * szInfoFile;
bool bBuildConfigComplete = false;
int nError = ERROR_SUCCESS;
// Since HOTS build 30027, the game uses build.info file for storage info
if(bBuildConfigComplete == false)
{
szInfoFile = CombinePath(hs->szRootPath, _T(".build.info"));
if(szInfoFile != NULL)
{
nError = LoadTextFile(szInfoFile, &InfoFile);
if(nError == ERROR_SUCCESS)
{
// Parse the info file
nError = ParseInfoFile(hs, &InfoFile);
if(nError == ERROR_SUCCESS)
bBuildConfigComplete = true;
// Free the loaded blob
FreeCascBlob(&InfoFile);
}
CASC_FREE(szInfoFile);
}
}
// If the info file has not been loaded, try the legacy .build.db
if(bBuildConfigComplete == false)
{
szAgentFile = CombinePath(hs->szRootPath, _T(".build.db"));
if(szAgentFile != NULL)
{
nError = LoadTextFile(szAgentFile, &FileData);
if(nError == ERROR_SUCCESS)
{
nError = ParseAgentFile(hs, &FileData);
if(nError == ERROR_SUCCESS)
bBuildConfigComplete = true;
FreeCascBlob(&FileData);
}
CASC_FREE(szAgentFile);
}
}
// If the .build.info and .build.db file hasn't been loaded,
if(nError == ERROR_SUCCESS && bBuildConfigComplete == false)
{
nError = ERROR_FILE_CORRUPT;
}
// Load the configuration file
if(nError == ERROR_SUCCESS)
{
nError = FetchAndVerifyConfigFile(hs, &hs->CdnConfigKey, &FileData);
if(nError == ERROR_SUCCESS)
{
nError = LoadCdnConfigFile(hs, &FileData);
FreeCascBlob(&FileData);
}
}
// Load the build file
if(nError == ERROR_SUCCESS)
{
nError = FetchAndVerifyConfigFile(hs, &hs->CdnBuildKey, &FileData);
if(nError == ERROR_SUCCESS)
{
nError = LoadCdnBuildFile(hs, &FileData);
FreeCascBlob(&FileData);
}
}
// Fill the index directory
if(nError == ERROR_SUCCESS)
{
// First, check for more common "data" subdirectory
if((hs->szIndexPath = CheckForIndexDirectory(hs, _T("data"))) != NULL)
return ERROR_SUCCESS;
// Second, try the "darch" subdirectory (older builds of HOTS - Alpha)
if((hs->szIndexPath = CheckForIndexDirectory(hs, _T("darch"))) != NULL)
return ERROR_SUCCESS;
nError = ERROR_FILE_NOT_FOUND;
}
return nError;
}
static int ParseInfoFile(TCascStorage * hs, PQUERY_KEY pFileBlob)
{
QUERY_KEY Active = {NULL, 0};
QUERY_KEY TagString = {NULL, 0};
QUERY_KEY CdnHost = {NULL, 0};
QUERY_KEY CdnPath = {NULL, 0};
const char * szLineBegin1 = NULL;
const char * szLinePtr1 = NULL;
const char * szLineBegin2 = NULL;
const char * szLineEnd1 = NULL;
const char * szLineEnd2 = NULL;
const char * szFileEnd = (const char *)(pFileBlob->pbData + pFileBlob->cbData);
const char * szFilePtr = (const char *)pFileBlob->pbData;
int nError = ERROR_BAD_FORMAT;
// Find the first line
szLineBegin1 = szFilePtr;
while(szFilePtr < szFileEnd)
{
// Check for the end of the line
if(szFilePtr[0] == 0x0D || szFilePtr[0] == 0x0A)
{
szLineEnd1 = szFilePtr;
break;
}
szFilePtr++;
}
while (szFilePtr < szFileEnd)
{
// Rewind header line pointers
szLinePtr1 = szLineBegin1;
// Skip the newline character(s)
while (szFilePtr < szFileEnd && (szFilePtr[0] == 0x0D || szFilePtr[0] == 0x0A))
szFilePtr++;
// Find the next line
szLineBegin2 = szFilePtr;
while (szFilePtr < szFileEnd)
{
// Check for the end of the line
if (szFilePtr[0] == 0x0D || szFilePtr[0] == 0x0A)
{
szLineEnd2 = szFilePtr;
break;
}
szFilePtr++;
}
// Find the build key, CDN config key and the URL path
while (szLinePtr1 < szLineEnd1)
{
// Check for variables we need
if (IsInfoVariable(szLinePtr1, szLineEnd1, "Active", "DEC"))
LoadInfoVariable(&Active, szLineBegin2, szLineEnd2, false);
if (IsInfoVariable(szLinePtr1, szLineEnd1, "Build Key", "HEX"))
LoadInfoVariable(&hs->CdnBuildKey, szLineBegin2, szLineEnd2, true);
if (IsInfoVariable(szLinePtr1, szLineEnd1, "CDN Key", "HEX"))
LoadInfoVariable(&hs->CdnConfigKey, szLineBegin2, szLineEnd2, true);
if (IsInfoVariable(szLinePtr1, szLineEnd1, "CDN Hosts", "STRING"))
LoadInfoVariable(&CdnHost, szLineBegin2, szLineEnd2, false);
if (IsInfoVariable(szLinePtr1, szLineEnd1, "CDN Path", "STRING"))
LoadInfoVariable(&CdnPath, szLineBegin2, szLineEnd2, false);
if (IsInfoVariable(szLinePtr1, szLineEnd1, "Tags", "STRING"))
LoadInfoVariable(&TagString, szLineBegin2, szLineEnd2, false);
// Move both line pointers
szLinePtr1 = SkipInfoVariable(szLinePtr1, szLineEnd1);
if (szLineBegin1 == NULL)
break;
szLineBegin2 = SkipInfoVariable(szLineBegin2, szLineEnd2);
if (szLineBegin2 == NULL)
break;
}
// Stop parsing if found active config
if(Active.pbData != NULL && *Active.pbData == '1')
break;
}
// All four must be present
if(hs->CdnBuildKey.pbData != NULL &&
hs->CdnConfigKey.pbData != NULL &&
CdnHost.pbData != NULL &&
CdnPath.pbData != NULL)
{
// Merge the CDN host and CDN path
hs->szUrlPath = CASC_ALLOC(TCHAR, CdnHost.cbData + CdnPath.cbData + 1);
if(hs->szUrlPath != NULL)
{
CopyString(hs->szUrlPath, (char *)CdnHost.pbData, CdnHost.cbData);
CopyString(hs->szUrlPath + CdnHost.cbData, (char *)CdnPath.pbData, CdnPath.cbData);
nError = ERROR_SUCCESS;
}
}
// If we found tags, we can extract language build from it
if(TagString.pbData != NULL)
GetDefaultLocaleMask(hs, &TagString);
FreeCascBlob(&CdnHost);
FreeCascBlob(&CdnPath);
FreeCascBlob(&TagString);
return nError;
}
static int ParseInfoFile(TCascStorage * hs, void * pvListFile)
{
QUERY_KEY Active = {NULL, 0};
QUERY_KEY TagString = {NULL, 0};
QUERY_KEY CdnHost = {NULL, 0};
QUERY_KEY CdnPath = {NULL, 0};
char szOneLine1[0x200];
char szOneLine2[0x200];
size_t nLength1;
size_t nLength2;
int nError = ERROR_BAD_FORMAT;
// Extract the first line, cotaining the headers
nLength1 = ListFile_GetNextLine(pvListFile, szOneLine1, _maxchars(szOneLine1));
if(nLength1 == 0)
return ERROR_BAD_FORMAT;
// Now parse the second and the next lines. We are looking for line
// with "Active" set to 1
for(;;)
{
const char * szLinePtr1 = szOneLine1;
const char * szLineEnd1 = szOneLine1 + nLength1;
const char * szLinePtr2 = szOneLine2;
const char * szLineEnd2;
// Read the next line
nLength2 = ListFile_GetNextLine(pvListFile, szOneLine2, _maxchars(szOneLine2));
if(nLength2 == 0)
break;
szLineEnd2 = szLinePtr2 + nLength2;
// Parse all variables
while(szLinePtr1 < szLineEnd1)
{
// Check for variables we need
if(IsInfoVariable(szLinePtr1, szLineEnd1, "Active", "DEC"))
LoadInfoVariable(&Active, szLinePtr2, szLineEnd2, false);
if(IsInfoVariable(szLinePtr1, szLineEnd1, "Build Key", "HEX"))
LoadInfoVariable(&hs->CdnBuildKey, szLinePtr2, szLineEnd2, true);
if(IsInfoVariable(szLinePtr1, szLineEnd1, "CDN Key", "HEX"))
LoadInfoVariable(&hs->CdnConfigKey, szLinePtr2, szLineEnd2, true);
if(IsInfoVariable(szLinePtr1, szLineEnd1, "CDN Hosts", "STRING"))
LoadInfoVariable(&CdnHost, szLinePtr2, szLineEnd2, false);
if(IsInfoVariable(szLinePtr1, szLineEnd1, "CDN Path", "STRING"))
LoadInfoVariable(&CdnPath, szLinePtr2, szLineEnd2, false);
if(IsInfoVariable(szLinePtr1, szLineEnd1, "Tags", "STRING"))
LoadInfoVariable(&TagString, szLinePtr2, szLineEnd2, false);
// Move both line pointers
szLinePtr1 = SkipInfoVariable(szLinePtr1, szLineEnd1);
if(szLinePtr1 == NULL)
break;
szLinePtr2 = SkipInfoVariable(szLinePtr2, szLineEnd2);
if(szLinePtr2 == NULL)
break;
}
// Stop parsing if found active config
if(Active.pbData != NULL && *Active.pbData == '1')
break;
// Free the blobs
FreeCascBlob(&CdnHost);
FreeCascBlob(&CdnPath);
FreeCascBlob(&TagString);
}
// All four must be present
if(hs->CdnBuildKey.pbData != NULL &&
hs->CdnConfigKey.pbData != NULL &&
CdnHost.pbData != NULL &&
CdnPath.pbData != NULL)
{
// Merge the CDN host and CDN path
hs->szUrlPath = CASC_ALLOC(TCHAR, CdnHost.cbData + CdnPath.cbData + 1);
if(hs->szUrlPath != NULL)
{
CopyString(hs->szUrlPath, (char *)CdnHost.pbData, CdnHost.cbData);
CopyString(hs->szUrlPath + CdnHost.cbData, (char *)CdnPath.pbData, CdnPath.cbData);
nError = ERROR_SUCCESS;
}
}
// If we found tags, we can extract language build from it
if(TagString.pbData != NULL)
GetDefaultLocaleMask(hs, &TagString);
FreeCascBlob(&CdnHost);
FreeCascBlob(&CdnPath);
FreeCascBlob(&TagString);
FreeCascBlob(&Active);
return nError;
}
static int ParseFile_BuildInfo(TCascStorage * hs, void * pvListFile)
{
CASC_CSV Csv;
size_t Indices[4];
char szActive[4];
int nError;
// Extract the first line, containing the headers
if (Csv.LoadHeader(pvListFile) == 0)
return ERROR_BAD_FORMAT;
// Retrieve the column indices
if (!Csv.GetColumnIndices(Indices, "Active!DEC:1", "Build Key!HEX:16", "CDN Key!HEX:16", NULL))
return ERROR_BAD_FORMAT;
// Find the active config
for (;;)
{
// Load a next line
if (Csv.LoadNextLine(pvListFile) == 0)
break;
// Is that build config active?
if (Csv.GetString(szActive, 4, Indices[0]) == ERROR_SUCCESS && !strcmp(szActive, "1"))
{
// Retrieve the build key
nError = Csv.GetData(hs->CdnBuildKey, Indices[1], true);
if (nError != ERROR_SUCCESS)
return nError;
// Retrieve the config key
nError = Csv.GetData(hs->CdnConfigKey, Indices[2], true);
if (nError != ERROR_SUCCESS)
return nError;
// "CDN Servers"?
if (Csv.GetColumnIndices(Indices, "CDN Servers!STRING:0", "CDN Path!STRING:0", NULL))
{
hs->szCdnList = MakeCdnList(Csv, Indices);
}
// "CDN Hosts"?
else if (Csv.GetColumnIndices(Indices, "CDN Hosts!STRING:0", "CDN Path!STRING:0", NULL))
{
hs->szCdnList = MakeCdnList(Csv, Indices);
}
// If we found tags, we can extract language build from it
if (Csv.GetColumnIndices(Indices, "Tags!STRING:0", NULL))
{
QUERY_KEY TagString = { NULL, 0 };
if (Csv.GetData(TagString, Indices[0], false) == ERROR_SUCCESS && TagString.cbData != 0)
{
GetDefaultLocaleMask(hs, &TagString);
FreeCascBlob(&TagString);
}
}
// Build and Config keys are the ones we do really need
return (hs->CdnConfigKey.cbData == MD5_HASH_SIZE && hs->CdnBuildKey.cbData == MD5_HASH_SIZE) ? ERROR_SUCCESS : ERROR_BAD_FORMAT;
}
}
return ERROR_FILE_NOT_FOUND;
}