size_t ListFile_GetNext(void * pvListFile, const char * szMask, char * szBuffer, size_t nMaxChars)
{
size_t nLength = 0;
int nError = ERROR_SUCCESS;
// Check for parameters
for(;;)
{
// Read the (next) line
nLength = ListFile_GetNextLine(pvListFile, szBuffer, nMaxChars);
if(nLength == 0)
{
nError = ERROR_NO_MORE_FILES;
break;
}
// If some mask entered, check it
if(CheckWildCard(szBuffer, szMask))
{
nError = ERROR_SUCCESS;
break;
}
}
if(nError != ERROR_SUCCESS)
SetLastError(nError);
return nLength;
}
static int LoadCdnConfigFile(TCascStorage * hs, void * pvListFile)
{
const char * szLineBegin;
const char * szVarBegin;
const char * szLineEnd;
int nError = ERROR_SUCCESS;
// Keep parsing the listfile while there is something in there
for(;;)
{
// Get the next line
if(!ListFile_GetNextLine(pvListFile, &szLineBegin, &szLineEnd))
break;
// Archive group
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "archive-group");
if(szVarBegin != NULL)
{
nError = LoadSingleBlob(&hs->ArchivesGroup, szVarBegin, szLineEnd);
continue;
}
// Archives
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "archives");
if(szVarBegin != NULL)
{
nError = LoadMultipleBlobs(&hs->ArchivesKey, szVarBegin, szLineEnd);
continue;
}
// Patch archive group
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "patch-archive-group");
if(szVarBegin != NULL)
{
LoadSingleBlob(&hs->PatchArchivesKey, szVarBegin, szLineEnd);
continue;
}
// Patch archives
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "patch-archives");
if(szVarBegin != NULL)
{
nError = LoadMultipleBlobs(&hs->PatchArchivesKey, szVarBegin, szLineEnd);
continue;
}
}
// Check if all required fields are present
if(hs->ArchivesKey.pbData == NULL || hs->ArchivesKey.cbData == 0)
return ERROR_BAD_FORMAT;
return nError;
}
static int ParseAgentFile(TCascStorage * hs, void * pvListFile)
{
const char * szLinePtr;
const char * szLineEnd;
char szOneLine[0x200];
size_t nLength;
int nError;
// Load the single line from the text file
nLength = ListFile_GetNextLine(pvListFile, szOneLine, _maxchars(szOneLine));
if(nLength == 0)
return ERROR_BAD_FORMAT;
// Set the line range
szLinePtr = szOneLine;
szLineEnd = szOneLine + nLength;
// Extract the CDN build key
nError = LoadInfoVariable(&hs->CdnBuildKey, szLinePtr, szLineEnd, true);
if(nError == ERROR_SUCCESS)
{
// Skip the variable
szLinePtr = SkipInfoVariable(szLinePtr, szLineEnd);
// Load the CDN config hash
nError = LoadInfoVariable(&hs->CdnConfigKey, szLinePtr, szLineEnd, true);
if(nError == ERROR_SUCCESS)
{
// Skip the variable
szLinePtr = SkipInfoVariable(szLinePtr, szLineEnd);
// Skip the Locale/OS/code variable
szLinePtr = SkipInfoVariable(szLinePtr, szLineEnd);
// Load the URL
hs->szUrlPath = CascNewStrFromAnsi(szLinePtr, szLineEnd);
if(hs->szUrlPath == NULL)
nError = ERROR_NOT_ENOUGH_MEMORY;
}
}
// Verify all variables
if(hs->CdnBuildKey.pbData == NULL || hs->CdnConfigKey.pbData == NULL || hs->szUrlPath == NULL)
nError = ERROR_BAD_FORMAT;
return nError;
}
static int ParseFile_CdnConfig(TCascStorage * hs, void * pvListFile)
{
const char * szLineBegin;
const char * szLineEnd;
int nError = ERROR_SUCCESS;
// Keep parsing the listfile while there is something in there
for(;;)
{
// Get the next line
if(!ListFile_GetNextLine(pvListFile, &szLineBegin, &szLineEnd))
break;
// CDN key of ARCHIVE-GROUP. Archive-group is actually a very special '.index' file.
// It is essentially a merger of all .index files, with a structure change
// When ".index" added after the ARCHIVE-GROUP, we get file name in "indices" folder
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "archive-group", LoadQueryKey, &hs->ArchiveGroup))
continue;
// CDN key of all archives. When ".index" added to the string, we get file name in "indices" folder
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "archives", LoadQueryKey, &hs->ArchivesKey))
continue;
// CDN keys of patch archives (needs research)
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "patch-archives", LoadQueryKey, &hs->PatchArchivesKey))
continue;
// CDN key of probably the combined patch index file (needs research)
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "patch-archive-group", LoadQueryKey, &hs->PatchArchivesGroup))
continue;
// List of build configs this config supports (optional)
// Points to file: "data\config\%02X\%02X\%s
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "builds", LoadQueryKey, &hs->BuildFiles))
continue;
}
// Check if all required fields are present
if(hs->ArchivesKey.pbData == NULL || hs->ArchivesKey.cbData == 0)
return ERROR_BAD_FORMAT;
return nError;
}
size_t ListFile_GetNextLine(void * pvListFile, char * szBuffer, size_t nMaxChars)
{
const char * szLineBegin = NULL;
const char * szLineEnd = NULL;
size_t nLength;
// Retrieve the next line
nLength = ListFile_GetNextLine(pvListFile, &szLineBegin, &szLineEnd);
// Check the length
if(nLength > nMaxChars)
{
SetLastError(ERROR_INSUFFICIENT_BUFFER);
return 0;
}
// Copy the line to the user buffer
memcpy(szBuffer, szLineBegin, nLength);
szBuffer[nLength] = 0;
return nLength;
}
static int LoadCdnBuildFile(TCascStorage * hs, void * pvListFile)
{
const char * szLineBegin;
const char * szVarBegin;
const char * szLineEnd = NULL;
int nError = ERROR_SUCCESS;
for(;;)
{
// Get the next line
if(!ListFile_GetNextLine(pvListFile, &szLineBegin, &szLineEnd))
break;
// Game name
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "build-product");
if(szVarBegin != NULL)
{
GetGameType(hs, szVarBegin, szLineEnd);
continue;
}
// Game build number
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "build-name");
if(szVarBegin != NULL)
{
GetBuildNumber(hs, szVarBegin, szLineEnd);
continue;
}
// Root
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "root");
if(szVarBegin != NULL)
{
LoadSingleBlob(&hs->RootKey, szVarBegin, szLineEnd);
continue;
}
// Patch
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "patch");
if(szVarBegin != NULL)
{
LoadSingleBlob(&hs->PatchKey, szVarBegin, szLineEnd);
continue;
}
// Download
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "download");
if(szVarBegin != NULL)
{
LoadSingleBlob(&hs->DownloadKey, szVarBegin, szLineEnd);
continue;
}
// Install
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "install");
if(szVarBegin != NULL)
{
LoadSingleBlob(&hs->InstallKey, szVarBegin, szLineEnd);
continue;
}
// Encoding keys
szVarBegin = CheckLineVariable(szLineBegin, szLineEnd, "encoding");
if(szVarBegin != NULL)
{
nError = LoadMultipleBlobs(&hs->EncodingKey, szVarBegin, szLineEnd, 2);
continue;
}
}
// Check the encoding keys
if(hs->EncodingKey.pbData == NULL || hs->EncodingKey.cbData != MD5_HASH_SIZE * 2)
return ERROR_BAD_FORMAT;
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_CdnBuild(TCascStorage * hs, void * pvListFile)
{
const char * szLineBegin;
const char * szLineEnd = NULL;
int nError;
// Initialize the size of the internal files
ConvertIntegerToBytes_4(CASC_INVALID_SIZE, hs->EncodingFile.ContentSize);
// Initialize the empty VFS array
nError = hs->VfsRootList.Create<QUERY_KEY_PAIR>(0x10);
if (nError != ERROR_SUCCESS)
return nError;
// Parse all variables
while(ListFile_GetNextLine(pvListFile, &szLineBegin, &szLineEnd) != 0)
{
// Product name and build name
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "build-product", LoadBuildProduct, NULL))
continue;
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "build-name", LoadBuildName, NULL))
continue;
// Content key of the ROOT file. Look this up in ENCODING to get the encoded key
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "root", LoadCkeyEkey, &hs->RootFile))
continue;
// Content key [+ encoded key] of the INSTALL file
// If CKey is absent, you need to query the ENCODING file for it
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "install", LoadCkeyEkey, &hs->InstallFile))
continue;
// Content key [+ encoded key] of the DOWNLOAD file
// If CKey is absent, you need to query the ENCODING file for it
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "download", LoadCkeyEkey, &hs->DownloadFile))
continue;
// Content key + encoded key of the ENCODING file. Contains CKey+EKey
// If either none or 1 is found, the game (at least Wow) switches to plain-data(?). Seen in build 20173
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "encoding", LoadCkeyEkey, &hs->EncodingFile))
continue;
// Content and encoded size of the ENCODING file. This helps us to determine size
// of the ENCODING file better, as the size in the EKEY entries is almost always wrong on WoW storages
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "encoding-size", LoadCkeyEkeySize, &hs->EncodingFile))
continue;
// PATCH file
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "patch", LoadCkeyEkey, &hs->PatchFile))
continue;
// Load the CKey+EKey of a VFS root file (the root file of the storage VFS)
if (CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "vfs-root", LoadCkeyEkey, &hs->VfsRoot))
continue;
// Load the content size of the VFS root
if (CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "vfs-root-size", LoadCkeyEkeySize, &hs->VfsRoot))
continue;
// Load a directory entry to the VFS
if(CheckConfigFileVariable(hs, szLineBegin, szLineEnd, "vfs-*", LoadVfsRootEntry, &hs->VfsRootList))
continue;
}
// Both CKey and EKey of ENCODING file is required
if(!IsValidMD5(hs->EncodingFile.CKey) || !IsValidMD5(hs->EncodingFile.EKey))
return ERROR_BAD_FORMAT;
return nError;
}
