Windows2000/private/inet/urlmon/download/wvt.cxx
2020-09-30 17:12:32 +02:00

307 lines
9.7 KiB
C++

#include <cdlpch.h>
#include <softpub.h>
#define WINTRUST TEXT("wintrust.dll")
#ifdef DELAY_LOAD_WVT
#ifndef _WVTP_NOCODE_
Cwvt::Cwvt()
{
m_fInited = FALSE;
m_bHaveWTData = FALSE;
}
Cwvt::~Cwvt()
{
if (m_fInited) {
FreeLibrary(m_hMod);
}
}
HRESULT
Cwvt::Init(void)
{
GUID PublishedSoftware = WIN_SPUB_ACTION_PUBLISHED_SOFTWARE;
GUID *ActionID = &PublishedSoftware;
if (m_fInited) {
return S_OK;
}
m_hMod = LoadLibrary( WINTRUST );
if (NULL == m_hMod) {
return (HRESULT_FROM_WIN32(ERROR_MOD_NOT_FOUND));
}
#define CHECKAPI(_fn) \
*(FARPROC*)&(_pfn##_fn) = GetProcAddress(m_hMod, #_fn); \
if (!(_pfn##_fn)) { \
FreeLibrary(m_hMod); \
return (HRESULT_FROM_WIN32(ERROR_MOD_NOT_FOUND)); \
}
CHECKAPI(WinVerifyTrust);
m_fInited = TRUE;
return S_OK;
}
BOOL IsUIRestricted()
{
HKEY hkeyRest = 0;
BOOL bUIRest = FALSE;
DWORD dwValue = 0;
DWORD dwLen = sizeof(DWORD);
// per-machine UI off policy
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, REGSTR_PATH_INFODEL_REST, 0, KEY_READ, &hkeyRest) == ERROR_SUCCESS) {
if (RegQueryValueEx( hkeyRest, REGVAL_UI_REST, NULL, NULL, (LPBYTE)&dwValue, &dwLen) == ERROR_SUCCESS && dwValue)
bUIRest = TRUE;
RegCloseKey(hkeyRest);
}
return bUIRest;
}
#endif // _WVTP_NOCODE_
#endif // DELAY_LOAD_WVT
// {D41E4F1D-A407-11d1-8BC9-00C04FA30A41}
#define COR_POLICY_PROVIDER_DOWNLOAD \
{ 0xd41e4f1d, 0xa407, 0x11d1, {0x8b, 0xc9, 0x0, 0xc0, 0x4f, 0xa3, 0xa, 0x41 } }
#define ZEROSTRUCT(arg) memset( &arg, 0, sizeof(arg))
HRESULT Cwvt::VerifyTrust(HANDLE hFile, HWND hWnd, PJAVA_TRUST *ppJavaTrust,
LPCWSTR szStatusText,
IInternetHostSecurityManager *pHostSecurityManager,
LPSTR szFilePath, LPSTR szCatalogFile,
CDownload *pdl)
{
LPWSTR wzFileName = NULL;
LPWSTR wzFilePath = NULL;
LPWSTR wzCatalogFile = NULL;
GUID guidJava = JAVA_POLICY_PROVIDER_DOWNLOAD;
GUID guidCor = COR_POLICY_PROVIDER_DOWNLOAD;
GUID guidAuthenticode = WINTRUST_ACTION_GENERIC_VERIFY_V2;
GUID *pguidActionIDJava = &guidJava;
GUID *pguidActionIDCor = &guidCor;
WINTRUST_DATA wintrustData;
WINTRUST_DATA wtdAuthenticode;
WINTRUST_FILE_INFO fileData;
JAVA_POLICY_PROVIDER javaPolicyData;
WCHAR wpath [MAX_PATH];
PJAVA_TRUST pbJavaTrust = NULL;
IServiceProvider *pServProv = NULL;
LPCATALOGFILEINFO pcfi = NULL;
HRESULT hr = S_OK;
ZEROSTRUCT(wintrustData);
ZEROSTRUCT(fileData);
ZEROSTRUCT(javaPolicyData);
javaPolicyData.cbSize = sizeof(JAVA_POLICY_PROVIDER);
javaPolicyData.VMBased = FALSE;
javaPolicyData.fNoBadUI = FALSE;
javaPolicyData.pwszZone = szStatusText;
javaPolicyData.pZoneManager = (LPVOID)pHostSecurityManager;
fileData.cbStruct = sizeof(WINTRUST_FILE_INFO);
fileData.pcwszFilePath = szStatusText;
fileData.hFile = hFile;
wintrustData.cbStruct = sizeof(WINTRUST_DATA);
wintrustData.pPolicyCallbackData = &javaPolicyData;
if ( (hWnd == INVALID_HANDLE_VALUE) || IsUIRestricted())
wintrustData.dwUIChoice = WTD_UI_NONE;
else
wintrustData.dwUIChoice = WTD_UI_ALL;
wintrustData.dwUnionChoice = WTD_CHOICE_FILE;
wintrustData.pFile = &fileData;
if (szCatalogFile) {
::Ansi2Unicode(szCatalogFile, &wzCatalogFile);
::Ansi2Unicode(szFilePath, &wzFilePath);
wzFileName = PathFindFileNameW(szStatusText);
if (!m_bHaveWTData) {
memset(&m_wtCatalogInfo, 0x0, sizeof(m_wtCatalogInfo));
m_wtCatalogInfo.cbStruct = sizeof(WINTRUST_CATALOG_INFO);
m_bHaveWTData = TRUE;
}
m_wtCatalogInfo.pcwszCatalogFilePath = wzCatalogFile;
m_wtCatalogInfo.pcwszMemberTag = wzFileName;
m_wtCatalogInfo.pcwszMemberFilePath = wzFilePath;
wtdAuthenticode = wintrustData;
wtdAuthenticode.pCatalog = &m_wtCatalogInfo;
wtdAuthenticode.dwUnionChoice = WTD_CHOICE_CATALOG;
wtdAuthenticode.dwStateAction = WTD_STATEACTION_VERIFY;
wtdAuthenticode.dwUIChoice = WTD_UI_NONE;
hr = WinVerifyTrust(hWnd, &guidAuthenticode, &wtdAuthenticode);
if (FAILED(hr)) {
hr = WinVerifyTrust(hWnd, pguidActionIDCor, &wintrustData);
if (hr == TRUST_E_PROVIDER_UNKNOWN)
hr = WinVerifyTrust(hWnd, pguidActionIDJava, &wintrustData);
}
else {
// Clone Java permissions
pbJavaTrust = pdl->GetCodeDownload()->GetJavaTrust();
if (!pbJavaTrust) {
hr = pdl->GetBSC()->QueryInterface(IID_IServiceProvider, (void **)&pServProv);
if (SUCCEEDED(hr)) {
hr = pServProv->QueryService(IID_ICatalogFileInfo, IID_ICatalogFileInfo, (void **)&pcfi);
if (SUCCEEDED(hr)) {
pcfi->GetJavaTrust((void **)&pbJavaTrust);
}
}
SAFERELEASE(pServProv);
SAFERELEASE(pcfi);
pdl->SetMainCABJavaTrustPermissions(pbJavaTrust);
}
}
}
else {
hr = WinVerifyTrust(hWnd, pguidActionIDCor, &wintrustData);
if (hr == TRUST_E_PROVIDER_UNKNOWN)
hr = WinVerifyTrust(hWnd, pguidActionIDJava, &wintrustData);
if (SUCCEEDED(hr)) {
pdl->SetMainCABJavaTrustPermissions(javaPolicyData.pbJavaTrust);
}
}
SAFEDELETE(wzCatalogFile);
SAFEDELETE(wzFilePath);
// BUGBUG: this works around a wvt bug that returns 0x57 (success) when
// you hit No to an usigned control
if (SUCCEEDED(hr) && hr != S_OK) {
hr = TRUST_E_FAIL;
}
if (FAILED(hr)) {
// display original hr intact to help debugging
// CodeDownloadDebugOut(DEB_CODEDL, TRUE, ID_CDLDBG_VERIFYTRUST_FAILED, hr);
} else {
*ppJavaTrust = javaPolicyData.pbJavaTrust;
}
if (hr == TRUST_E_SUBJECT_NOT_TRUSTED && wintrustData.dwUIChoice == WTD_UI_NONE) {
// if we didn't ask for the UI to be out up there has been no UI
// work around WVT bvug that it returns us this special error code
// without putting up UI.
hr = TRUST_E_FAIL; // this will put up mshtml ui after the fact
// that security settings prevented us
}
if (FAILED(hr) && (hr != TRUST_E_SUBJECT_NOT_TRUSTED)) {
// trust system has failed without UI
// map error to this generic error that will falg our client to put
// up additional info that this is a trust system error if reqd.
hr = TRUST_E_FAIL;
}
if (hr == TRUST_E_SUBJECT_NOT_TRUSTED) {
pdl->GetCodeDownload()->SetUserDeclined();
}
return hr;
}
HRESULT GetActivePolicy(IInternetHostSecurityManager* pZoneManager,
LPCWSTR pwszZone,
DWORD dwUrlAction,
DWORD& dwPolicy)
{
HRESULT hr = TRUST_E_FAIL;
HRESULT hr2 = TRUST_E_FAIL;
DWORD cbPolicy = sizeof(DWORD);
// Policy are ordered such that high numbers are the most conservative
// and the lower numbers are less conservative
DWORD dwDocumentPolicy = URLPOLICY_ALLOW;
DWORD dwUrlPolicy = URLPOLICY_ALLOW;
// We are going for the most conservative so lets set the
// value to the least conservative
dwPolicy = URLPOLICY_ALLOW;
IInternetSecurityManager* iSM = NULL;
// Ask the document base for its policy
if(pZoneManager) { // Given a IInternetHostSecurityManager
hr = pZoneManager->ProcessUrlAction(dwUrlAction,
(PBYTE) &dwDocumentPolicy,
cbPolicy,
NULL,
0,
PUAF_NOUI,
0);
}
// Get the policy for the URL
if(pwszZone) { // Create an IInternetSecurityManager
hr2 = CoInternetCreateSecurityManager(NULL,
&iSM,
0);
if(hr2 == S_OK) { // We got the manager so get the policy info
hr2 = iSM->ProcessUrlAction(pwszZone,
dwUrlAction,
(PBYTE) &dwUrlPolicy,
cbPolicy,
NULL,
0,
PUAF_NOUI,
0);
iSM->Release();
}
else
iSM = NULL;
}
// if they both failed and we have zones then set it to deny and return an error
if(FAILED(hr) && FAILED(hr2)) {
// If we failed because there are on zones then lets QUERY
// BUGBUG: we should actually try to get the IE30 security policy here.
if(iSM == NULL && pZoneManager == NULL) {
dwPolicy = URLPOLICY_QUERY;
hr = S_OK;
}
else {
dwPolicy = URLPOLICY_DISALLOW;
hr = TRUST_E_FAIL;
}
}
else {
if(SUCCEEDED(hr))
dwPolicy = dwDocumentPolicy;
if(SUCCEEDED(hr2))
dwPolicy = dwPolicy > dwUrlPolicy ? dwPolicy : dwUrlPolicy;
if (dwPolicy == URLPOLICY_DISALLOW)
hr = TRUST_E_FAIL;
else
hr = S_OK;
}
return hr;
}