int ObserverPlugin::QueryArchives(const TCHAR* lpFileName, Array<ArchiveQueryResult*>& result)
{
StorageGeneralInfo info;
HANDLE hArchive = OpenStorage(lpFileName, &info);
if ( hArchive )
{
CloseStorage(hArchive);
ArchiveQueryResult* pResult = new ArchiveQueryResult;
pResult->uidFormat = m_pFormatInfo->uid;
pResult->uidPlugin = m_uid;
result.add(pResult);
return 1;
}
return 0;
}
bool SettingsXML::OpenStorage(uint access, wchar_t (&szErr)[512])
{
bool bRc = false;
bool bNeedReopen = (mp_File == NULL);
LPCWSTR pszXmlFile;
HRESULT hr = S_OK;
VARIANT_BOOL bSuccess;
IXMLDOMParseError* pErr = NULL;
VARIANT vt; VariantInit(&vt);
bool bAllowCreate = (access & KEY_WRITE) == KEY_WRITE;
szErr[0] = 0;
if (m_Storage.pszFile && *m_Storage.pszFile)
{
pszXmlFile = m_Storage.pszFile;
}
else
{
// Must be already initialized
_ASSERTE(m_Storage.pszFile && *m_Storage.pszFile);
pszXmlFile = gpConEmu->ConEmuXml();
if (!pszXmlFile || !*pszXmlFile)
{
goto wrap;
}
}
m_Storage.pszFile = pszXmlFile;
// Changed access type?
if (bNeedReopen || (mn_access != access))
{
DWORD dwAccess = GENERIC_READ;
DWORD dwMode = OPEN_EXISTING;
if ((access & KEY_WRITE) == KEY_WRITE)
{
dwAccess |= GENERIC_WRITE;
dwMode = OPEN_ALWAYS;
}
HANDLE hFile = CreateFile(pszXmlFile, dwAccess, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, dwMode, 0, 0);
// XML-файл отсутсвует
if (!hFile || (hFile == INVALID_HANDLE_VALUE))
{
goto wrap;
}
else
{
BY_HANDLE_FILE_INFORMATION bfi = {0};
if (GetFileInformationByHandle(hFile, &bfi))
{
mb_Empty = (bfi.nFileSizeHigh == 0 && bfi.nFileSizeLow == 0);
if (!mb_Empty)
{
// UTF-8 BOM? Xml DOM does not allows BOM
if (bfi.nFileSizeHigh == 0 && bfi.nFileSizeLow == 3)
{
BYTE bom[3] = {}; DWORD nRead = 0;
if (ReadFile(hFile, bom, sizeof(bom), &nRead, NULL) && (nRead == sizeof(bom))
&& (bom[0]==0xEF && bom[1]==0xBB && bom[2]==0xBF))
{
mb_Empty = true;
}
}
}
}
CloseHandle(hFile); hFile = NULL;
if (mb_Empty && bAllowCreate)
{
bNeedReopen = true;
hFile = CreateFile(pszXmlFile, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, 0);
if (!hFile || (hFile == INVALID_HANDLE_VALUE))
{
goto wrap;
}
else
{
LPCSTR pszDefault = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n"
"<key name=\"Software\">\r\n"
"\t<key name=\"ConEmu\">\r\n"
"\t</key>\r\n"
"</key>\r\n";
DWORD nLen = lstrlenA(pszDefault);
WriteFile(hFile, pszDefault, nLen, &nLen, NULL);
CloseHandle(hFile);
}
hFile = NULL;
}
}
}
if (!bNeedReopen)
{
bRc = true;
goto wrap;
}
if (mb_Empty && !bAllowCreate)
goto wrap;
CloseStorage();
SAFETRY
{
_ASSERTE(mp_File == NULL);
mp_File = CreateDomDocument(szErr, countof(szErr));
if (FAILED(hr) || !mp_File)
{
//Ошибка уже в szErr
//_wsprintf(szErr, SKIPLEN(countof(szErr)) L"Can't create IID_IXMLDOMDocument!\nErrCode=0x%08X", (DWORD)hr);
goto wrap;
}
hr = mp_File->put_preserveWhiteSpace(VARIANT_TRUE);
hr = mp_File->put_async(VARIANT_FALSE);
// Загрузить xml-ку
bSuccess = VARIANT_FALSE;
vt.vt = VT_BSTR; vt.bstrVal = ::SysAllocString(pszXmlFile);
hr = mp_File->load(vt, &bSuccess);
VariantClear(&vt);
if (hr == S_FALSE)
{
mb_Empty = true; // Файл пуст (может только заголовок?)
}
else if (FAILED(hr) || !bSuccess)
{
_wsprintf(szErr, SKIPLEN(countof(szErr)) L"Failed to load ConEmu.xml!\nHR=0x%08X\n", (DWORD)hr);
hr = mp_File->get_parseError(&pErr);
if (pErr)
{
long errorCode = 0; // Contains the error code of the last parse error. Read-only.
long line = 0; // Specifies the line number that contains the error. Read-only.
long linepos = 0; // Contains the character position within the line where the error occurred. Read-only.
hr = pErr->get_errorCode(&errorCode);
hr = pErr->get_line(&line);
hr = pErr->get_linepos(&linepos);
wsprintf(szErr+_tcslen(szErr), L"XmlErrCode=%i, Line=%i, Pos=%i", errorCode, line, linepos);
}
goto wrap;
}
mn_access = access;
bRc = true;
} SAFECATCH
{
lstrcpy(szErr, L"Exception in SettingsXML::OpenStorage");
bRc = false;
}
wrap:
SafeRelease(pErr);
if (!bRc)
CloseStorage();
return bRc;
}
SettingsXML::~SettingsXML()
{
CloseStorage();
}