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/*
* Copyright 2008 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define NONAMELESSUNION
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "wincrypt.h"
#include "wintrust.h"
#include "winuser.h"
#include "objbase.h"
#include "cryptdlg.h"
#include "cryptuiapi.h"
#include "cryptres.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(cryptdlg);
static HINSTANCE hInstance;
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
switch (fdwReason)
{
case DLL_WINE_PREATTACH:
return FALSE; /* prefer native version */
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hinstDLL);
hInstance = hinstDLL;
break;
}
return TRUE;
}
/***********************************************************************
* GetFriendlyNameOfCertA (CRYPTDLG.@)
*/
DWORD WINAPI GetFriendlyNameOfCertA(PCCERT_CONTEXT pccert, LPSTR pchBuffer,
DWORD cchBuffer)
{
return CertGetNameStringA(pccert, CERT_NAME_FRIENDLY_DISPLAY_TYPE, 0, NULL,
pchBuffer, cchBuffer);
}
/***********************************************************************
* GetFriendlyNameOfCertW (CRYPTDLG.@)
*/
DWORD WINAPI GetFriendlyNameOfCertW(PCCERT_CONTEXT pccert, LPWSTR pchBuffer,
DWORD cchBuffer)
{
return CertGetNameStringW(pccert, CERT_NAME_FRIENDLY_DISPLAY_TYPE, 0, NULL,
pchBuffer, cchBuffer);
}
/***********************************************************************
* CertTrustInit (CRYPTDLG.@)
*/
HRESULT WINAPI CertTrustInit(CRYPT_PROVIDER_DATA *pProvData)
{
HRESULT ret = S_FALSE;
TRACE("(%p)\n", pProvData);
if (pProvData->padwTrustStepErrors &&
!pProvData->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_WVTINIT])
ret = S_OK;
TRACE("returning %08x\n", ret);
return ret;
}
/***********************************************************************
* CertTrustCertPolicy (CRYPTDLG.@)
*/
BOOL WINAPI CertTrustCertPolicy(CRYPT_PROVIDER_DATA *pProvData, DWORD idxSigner, BOOL fCounterSignerChain, DWORD idxCounterSigner)
{
FIXME("(%p, %d, %s, %d)\n", pProvData, idxSigner, fCounterSignerChain ? "TRUE" : "FALSE", idxCounterSigner);
return FALSE;
}
/***********************************************************************
* CertTrustCleanup (CRYPTDLG.@)
*/
HRESULT WINAPI CertTrustCleanup(CRYPT_PROVIDER_DATA *pProvData)
{
FIXME("(%p)\n", pProvData);
return E_NOTIMPL;
}
static BOOL CRYPTDLG_CheckOnlineCRL(void)
{
HKEY key;
BOOL ret = FALSE;
if (!RegOpenKeyExW(HKEY_LOCAL_MACHINE,
L"Software\\Microsoft\\Cryptography\\{7801ebd0-cf4b-11d0-851f-0060979387ea}", 0, KEY_READ, &key))
{
DWORD type, flags, size = sizeof(flags);
if (!RegQueryValueExW(key, L"PolicyFlags", NULL, &type, (BYTE *)&flags,
&size) && type == REG_DWORD)
{
/* The flag values aren't defined in any header I'm aware of, but
* this value is well documented on the net.
*/
if (flags & 0x00010000)
ret = TRUE;
}
RegCloseKey(key);
}
return ret;
}
/* Returns TRUE if pCert is not in the Disallowed system store, or FALSE if it
* is.
*/
static BOOL CRYPTDLG_IsCertAllowed(PCCERT_CONTEXT pCert)
{
BOOL ret;
BYTE hash[20];
DWORD size = sizeof(hash);
if ((ret = CertGetCertificateContextProperty(pCert,
CERT_SIGNATURE_HASH_PROP_ID, hash, &size)))
{
HCERTSTORE disallowed = CertOpenStore(CERT_STORE_PROV_SYSTEM_W,
X509_ASN_ENCODING, 0, CERT_SYSTEM_STORE_CURRENT_USER, L"Disallowed");
if (disallowed)
{
PCCERT_CONTEXT found = CertFindCertificateInStore(disallowed,
X509_ASN_ENCODING, 0, CERT_FIND_SIGNATURE_HASH, hash, NULL);
if (found)
{
ret = FALSE;
CertFreeCertificateContext(found);
}
CertCloseStore(disallowed, 0);
}
}
return ret;
}
static DWORD CRYPTDLG_TrustStatusToConfidence(DWORD errorStatus)
{
DWORD confidence = 0;
confidence = 0;
if (!(errorStatus & CERT_TRUST_IS_NOT_SIGNATURE_VALID))
confidence |= CERT_CONFIDENCE_SIG;
if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_VALID))
confidence |= CERT_CONFIDENCE_TIME;
if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_NESTED))
confidence |= CERT_CONFIDENCE_TIMENEST;
return confidence;
}
static BOOL CRYPTDLG_CopyChain(CRYPT_PROVIDER_DATA *data,
PCCERT_CHAIN_CONTEXT chain)
{
BOOL ret;
CRYPT_PROVIDER_SGNR signer;
PCERT_SIMPLE_CHAIN simpleChain = chain->rgpChain[0];
DWORD i;
memset(&signer, 0, sizeof(signer));
signer.cbStruct = sizeof(signer);
ret = data->psPfns->pfnAddSgnr2Chain(data, FALSE, 0, &signer);
if (ret)
{
CRYPT_PROVIDER_SGNR *sgnr = WTHelperGetProvSignerFromChain(data, 0,
FALSE, 0);
if (sgnr)
{
sgnr->dwError = simpleChain->TrustStatus.dwErrorStatus;
sgnr->pChainContext = CertDuplicateCertificateChain(chain);
}
else
ret = FALSE;
for (i = 0; ret && i < simpleChain->cElement; i++)
{
ret = data->psPfns->pfnAddCert2Chain(data, 0, FALSE, 0,
simpleChain->rgpElement[i]->pCertContext);
if (ret)
{
CRYPT_PROVIDER_CERT *cert;
if ((cert = WTHelperGetProvCertFromChain(sgnr, i)))
{
CERT_CHAIN_ELEMENT *element = simpleChain->rgpElement[i];
cert->dwConfidence = CRYPTDLG_TrustStatusToConfidence(
element->TrustStatus.dwErrorStatus);
cert->dwError = element->TrustStatus.dwErrorStatus;
cert->pChainElement = element;
}
else
ret = FALSE;
}
}
}
return ret;
}
static CERT_VERIFY_CERTIFICATE_TRUST *CRYPTDLG_GetVerifyData(
CRYPT_PROVIDER_DATA *data)
{
CERT_VERIFY_CERTIFICATE_TRUST *pCert = NULL;
/* This should always be true, but just in case the calling function is
* called directly:
*/
if (data->pWintrustData->dwUnionChoice == WTD_CHOICE_BLOB &&
data->pWintrustData->u.pBlob && data->pWintrustData->u.pBlob->cbMemObject ==
sizeof(CERT_VERIFY_CERTIFICATE_TRUST) &&
data->pWintrustData->u.pBlob->pbMemObject)
pCert = (CERT_VERIFY_CERTIFICATE_TRUST *)
data->pWintrustData->u.pBlob->pbMemObject;
return pCert;
}
static HCERTCHAINENGINE CRYPTDLG_MakeEngine(CERT_VERIFY_CERTIFICATE_TRUST *cert)
{
HCERTCHAINENGINE engine = NULL;
HCERTSTORE root = NULL, trust = NULL;
DWORD i;
if (cert->cRootStores)
{
root = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
if (root)
{
for (i = 0; i < cert->cRootStores; i++)
CertAddStoreToCollection(root, cert->rghstoreRoots[i], 0, 0);
}
}
if (cert->cTrustStores)
{
trust = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
if (trust)
{
for (i = 0; i < cert->cTrustStores; i++)
CertAddStoreToCollection(trust, cert->rghstoreTrust[i], 0, 0);
}
}
if (cert->cRootStores || cert->cStores || cert->cTrustStores)
{
CERT_CHAIN_ENGINE_CONFIG config;
memset(&config, 0, sizeof(config));
config.cbSize = sizeof(config);
config.hRestrictedRoot = root;
config.hRestrictedTrust = trust;
config.cAdditionalStore = cert->cStores;
config.rghAdditionalStore = cert->rghstoreCAs;
config.hRestrictedRoot = root;
CertCreateCertificateChainEngine(&config, &engine);
CertCloseStore(root, 0);
CertCloseStore(trust, 0);
}
return engine;
}
/***********************************************************************
* CertTrustFinalPolicy (CRYPTDLG.@)
*/
HRESULT WINAPI CertTrustFinalPolicy(CRYPT_PROVIDER_DATA *data)
{
BOOL ret;
DWORD err = S_OK;
CERT_VERIFY_CERTIFICATE_TRUST *pCert = CRYPTDLG_GetVerifyData(data);
TRACE("(%p)\n", data);
if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
FIXME("unimplemented for UI choice %d\n",
data->pWintrustData->dwUIChoice);
if (pCert)
{
DWORD flags = 0;
CERT_CHAIN_PARA chainPara;
HCERTCHAINENGINE engine;
memset(&chainPara, 0, sizeof(chainPara));
chainPara.cbSize = sizeof(chainPara);
if (CRYPTDLG_CheckOnlineCRL())
flags |= CERT_CHAIN_REVOCATION_CHECK_END_CERT;
engine = CRYPTDLG_MakeEngine(pCert);
GetSystemTimeAsFileTime(&data->sftSystemTime);
ret = CRYPTDLG_IsCertAllowed(pCert->pccert);
if (ret)
{
PCCERT_CHAIN_CONTEXT chain;
ret = CertGetCertificateChain(engine, pCert->pccert,
&data->sftSystemTime, NULL, &chainPara, flags, NULL, &chain);
if (ret)
{
if (chain->cChain != 1)
{
FIXME("unimplemented for more than 1 simple chain\n");
err = TRUST_E_SUBJECT_FORM_UNKNOWN;
ret = FALSE;
}
else if ((ret = CRYPTDLG_CopyChain(data, chain)))
{
if (CertVerifyTimeValidity(&data->sftSystemTime,
pCert->pccert->pCertInfo))
{
ret = FALSE;
err = CERT_E_EXPIRED;
}
}
else
err = TRUST_E_SYSTEM_ERROR;
CertFreeCertificateChain(chain);
}
else
err = TRUST_E_SUBJECT_NOT_TRUSTED;
}
CertFreeCertificateChainEngine(engine);
}
else
{
ret = FALSE;
err = TRUST_E_NOSIGNATURE;
}
/* Oddly, native doesn't set the error in the trust step error location,
* probably because this action is more advisory than anything else.
* Instead it stores it as the final error, but the function "succeeds" in
* any case.
*/
if (!ret)
data->dwFinalError = err;
TRACE("returning %d (%08x)\n", S_OK, data->dwFinalError);
return S_OK;
}
/***********************************************************************
* CertViewPropertiesA (CRYPTDLG.@)
*/
BOOL WINAPI CertViewPropertiesA(CERT_VIEWPROPERTIES_STRUCT_A *info)
{
CERT_VIEWPROPERTIES_STRUCT_W infoW;
LPWSTR title = NULL;
BOOL ret;
TRACE("(%p)\n", info);
memcpy(&infoW, info, sizeof(infoW));
if (info->szTitle)
{
int len = MultiByteToWideChar(CP_ACP, 0, info->szTitle, -1, NULL, 0);
title = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (title)
{
MultiByteToWideChar(CP_ACP, 0, info->szTitle, -1, title, len);
infoW.szTitle = title;
}
else
{
ret = FALSE;
goto error;
}
}
ret = CertViewPropertiesW(&infoW);
HeapFree(GetProcessHeap(), 0, title);
error:
return ret;
}
/***********************************************************************
* CertViewPropertiesW (CRYPTDLG.@)
*/
BOOL WINAPI CertViewPropertiesW(CERT_VIEWPROPERTIES_STRUCT_W *info)
{
static GUID cert_action_verify = CERT_CERTIFICATE_ACTION_VERIFY;
CERT_VERIFY_CERTIFICATE_TRUST trust;
WINTRUST_BLOB_INFO blob;
WINTRUST_DATA wtd;
LONG err;
BOOL ret;
TRACE("(%p)\n", info);
memset(&trust, 0, sizeof(trust));
trust.cbSize = sizeof(trust);
trust.pccert = info->pCertContext;
trust.cRootStores = info->cRootStores;
trust.rghstoreRoots = info->rghstoreRoots;
trust.cStores = info->cStores;
trust.rghstoreCAs = info->rghstoreCAs;
trust.cTrustStores = info->cTrustStores;
trust.rghstoreTrust = info->rghstoreTrust;
memset(&blob, 0, sizeof(blob));
blob.cbStruct = sizeof(blob);
blob.cbMemObject = sizeof(trust);
blob.pbMemObject = (BYTE *)&trust;
memset(&wtd, 0, sizeof(wtd));
wtd.cbStruct = sizeof(wtd);
wtd.dwUIChoice = WTD_UI_NONE;
wtd.dwUnionChoice = WTD_CHOICE_BLOB;
wtd.u.pBlob = &blob;
wtd.dwStateAction = WTD_STATEACTION_VERIFY;
err = WinVerifyTrust(NULL, &cert_action_verify, &wtd);
if (err == ERROR_SUCCESS)
{
CRYPTUI_VIEWCERTIFICATE_STRUCTW uiInfo;
BOOL propsChanged = FALSE;
memset(&uiInfo, 0, sizeof(uiInfo));
uiInfo.dwSize = sizeof(uiInfo);
uiInfo.hwndParent = info->hwndParent;
uiInfo.dwFlags =
CRYPTUI_DISABLE_ADDTOSTORE | CRYPTUI_ENABLE_EDITPROPERTIES;
uiInfo.szTitle = info->szTitle;
uiInfo.pCertContext = info->pCertContext;
uiInfo.cPurposes = info->cArrayPurposes;
uiInfo.rgszPurposes = (LPCSTR *)info->arrayPurposes;
uiInfo.u.hWVTStateData = wtd.hWVTStateData;
uiInfo.fpCryptProviderDataTrustedUsage = TRUE;
uiInfo.cPropSheetPages = info->cArrayPropSheetPages;
uiInfo.rgPropSheetPages = info->arrayPropSheetPages;
uiInfo.nStartPage = info->nStartPage;
ret = CryptUIDlgViewCertificateW(&uiInfo, &propsChanged);
wtd.dwStateAction = WTD_STATEACTION_CLOSE;
WinVerifyTrust(NULL, &cert_action_verify, &wtd);
}
else
ret = FALSE;
return ret;
}
static BOOL CRYPT_FormatHexString(const BYTE *pbEncoded, DWORD cbEncoded,
WCHAR *str, DWORD *pcchStr)
{
BOOL ret;
DWORD charsNeeded;
if (cbEncoded)
charsNeeded = (cbEncoded * 3);
else
charsNeeded = 1;
if (!str)
{
*pcchStr = charsNeeded;
ret = TRUE;
}
else if (*pcchStr < charsNeeded)
{
*pcchStr = charsNeeded;
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
{
DWORD i;
LPWSTR ptr = str;
*pcchStr = charsNeeded;
if (cbEncoded)
{
for (i = 0; i < cbEncoded; i++)
{
if (i < cbEncoded - 1)
ptr += swprintf(ptr, 4, L"%02x ", pbEncoded[i]);
else
ptr += swprintf(ptr, 3, L"%02x", pbEncoded[i]);
}
}
else
*ptr = 0;
ret = TRUE;
}
return ret;
}
static const WCHAR indent[] = L" ";
static BOOL CRYPT_FormatCPS(DWORD dwCertEncodingType,
DWORD dwFormatStrType, const BYTE *pbEncoded, DWORD cbEncoded,
WCHAR *str, DWORD *pcchStr)
{
BOOL ret;
DWORD size, charsNeeded = 1;
CERT_NAME_VALUE *cpsValue;
if ((ret = CryptDecodeObjectEx(dwCertEncodingType, X509_UNICODE_ANY_STRING,
pbEncoded, cbEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL, &cpsValue, &size)))
{
LPCWSTR sep;
DWORD sepLen;
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
sep = L"\r\n";
else
sep = L", ";
sepLen = lstrlenW(sep);
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 3 * lstrlenW(indent);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += cpsValue->Value.cbData / sizeof(WCHAR);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, (LPWSTR)cpsValue->Value.pbData);
str += cpsValue->Value.cbData / sizeof(WCHAR);
}
charsNeeded += sepLen;
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, sep);
str += sepLen;
}
LocalFree(cpsValue);
if (!str)
*pcchStr = charsNeeded;
else if (*pcchStr < charsNeeded)
{
*pcchStr = charsNeeded;
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
*pcchStr = charsNeeded;
}
return ret;
}
static BOOL CRYPT_FormatUserNotice(DWORD dwCertEncodingType,
DWORD dwFormatStrType, const BYTE *pbEncoded, DWORD cbEncoded,
WCHAR *str, DWORD *pcchStr)
{
BOOL ret;
DWORD size, charsNeeded = 1;
CERT_POLICY_QUALIFIER_USER_NOTICE *notice;
if ((ret = CryptDecodeObjectEx(dwCertEncodingType,
X509_PKIX_POLICY_QUALIFIER_USERNOTICE, pbEncoded, cbEncoded,
CRYPT_DECODE_ALLOC_FLAG, NULL, &notice, &size)))
{
CERT_POLICY_QUALIFIER_NOTICE_REFERENCE *pNoticeRef =
notice->pNoticeReference;
LPCWSTR headingSep, sep;
DWORD headingSepLen, sepLen;
LPWSTR noticeRef, organization, noticeNum, noticeText;
DWORD noticeRefLen, organizationLen, noticeNumLen, noticeTextLen;
WCHAR noticeNumStr[11];
noticeRefLen = LoadStringW(hInstance, IDS_NOTICE_REF,
(LPWSTR)&noticeRef, 0);
organizationLen = LoadStringW(hInstance, IDS_ORGANIZATION,
(LPWSTR)&organization, 0);
noticeNumLen = LoadStringW(hInstance, IDS_NOTICE_NUM,
(LPWSTR)&noticeNum, 0);
noticeTextLen = LoadStringW(hInstance, IDS_NOTICE_TEXT,
(LPWSTR)&noticeText, 0);
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
headingSep = L":\r\n";
sep = L"\r\n";
}
else
{
headingSep = L": ";
sep = L", ";
}
sepLen = lstrlenW(sep);
headingSepLen = lstrlenW(headingSep);
if (pNoticeRef)
{
DWORD k;
LPCSTR src;
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 3 * lstrlenW(indent);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += noticeRefLen;
if (str && *pcchStr >= charsNeeded)
{
memcpy(str, noticeRef, noticeRefLen * sizeof(WCHAR));
str += noticeRefLen;
}
charsNeeded += headingSepLen;
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, headingSep);
str += headingSepLen;
}
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 4 * lstrlenW(indent);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += organizationLen;
if (str && *pcchStr >= charsNeeded)
{
memcpy(str, organization, organizationLen * sizeof(WCHAR));
str += organizationLen;
}
charsNeeded += strlen(pNoticeRef->pszOrganization);
if (str && *pcchStr >= charsNeeded)
for (src = pNoticeRef->pszOrganization; src && *src;
src++, str++)
*str = *src;
charsNeeded += sepLen;
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, sep);
str += sepLen;
}
for (k = 0; k < pNoticeRef->cNoticeNumbers; k++)
{
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 4 * lstrlenW(indent);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += noticeNumLen;
if (str && *pcchStr >= charsNeeded)
{
memcpy(str, noticeNum, noticeNumLen * sizeof(WCHAR));
str += noticeNumLen;
}
swprintf(noticeNumStr, ARRAY_SIZE(noticeNumStr), L"%d", k + 1);
charsNeeded += lstrlenW(noticeNumStr);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, noticeNumStr);
str += lstrlenW(noticeNumStr);
}
charsNeeded += sepLen;
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, sep);
str += sepLen;
}
}
}
if (notice->pszDisplayText)
{
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 3 * lstrlenW(indent);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += noticeTextLen;
if (str && *pcchStr >= charsNeeded)
{
memcpy(str, noticeText, noticeTextLen * sizeof(WCHAR));
str += noticeTextLen;
}
charsNeeded += lstrlenW(notice->pszDisplayText);
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, notice->pszDisplayText);
str += lstrlenW(notice->pszDisplayText);
}
charsNeeded += sepLen;
if (str && *pcchStr >= charsNeeded)
{
lstrcpyW(str, sep);
str += sepLen;
}
}
LocalFree(notice);
if (!str)
*pcchStr = charsNeeded;
else if (*pcchStr < charsNeeded)
{
*pcchStr = charsNeeded;
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
*pcchStr = charsNeeded;
}
return ret;
}
/***********************************************************************
* FormatVerisignExtension (CRYPTDLG.@)
*/
BOOL WINAPI FormatVerisignExtension(DWORD dwCertEncodingType,
DWORD dwFormatType, DWORD dwFormatStrType, void *pFormatStruct,
LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, void *pbFormat,
DWORD *pcbFormat)
{
CERT_POLICIES_INFO *policies;
DWORD size;
BOOL ret = FALSE;
if (!cbEncoded)
{
SetLastError(E_INVALIDARG);
return FALSE;
}
if ((ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT_POLICIES,
pbEncoded, cbEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL, &policies, &size)))
{
DWORD charsNeeded = 1; /* space for NULL terminator */
LPCWSTR headingSep, sep;
DWORD headingSepLen, sepLen;
WCHAR policyNum[11], policyQualifierNum[11];
LPWSTR certPolicy, policyId, policyQualifierInfo, policyQualifierId;
LPWSTR cps, userNotice, qualifier;
DWORD certPolicyLen, policyIdLen, policyQualifierInfoLen;
DWORD policyQualifierIdLen, cpsLen, userNoticeLen, qualifierLen;
DWORD i;
LPWSTR str = pbFormat;
certPolicyLen = LoadStringW(hInstance, IDS_CERT_POLICY,
(LPWSTR)&certPolicy, 0);
policyIdLen = LoadStringW(hInstance, IDS_POLICY_ID, (LPWSTR)&policyId,
0);
policyQualifierInfoLen = LoadStringW(hInstance,
IDS_POLICY_QUALIFIER_INFO, (LPWSTR)&policyQualifierInfo, 0);
policyQualifierIdLen = LoadStringW(hInstance, IDS_POLICY_QUALIFIER_ID,
(LPWSTR)&policyQualifierId, 0);
cpsLen = LoadStringW(hInstance, IDS_CPS, (LPWSTR)&cps, 0);
userNoticeLen = LoadStringW(hInstance, IDS_USER_NOTICE,
(LPWSTR)&userNotice, 0);
qualifierLen = LoadStringW(hInstance, IDS_QUALIFIER,
(LPWSTR)&qualifier, 0);
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
headingSep = L":\r\n";
sep = L"\r\n";
}
else
{
headingSep = L": ";
sep = L", ";
}
sepLen = lstrlenW(sep);
headingSepLen = lstrlenW(headingSep);
for (i = 0; ret && i < policies->cPolicyInfo; i++)
{
CERT_POLICY_INFO *policy = &policies->rgPolicyInfo[i];
DWORD j;
LPCSTR src;
charsNeeded += 1; /* '['*/
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
*str++ = '[';
swprintf(policyNum, ARRAY_SIZE(policyNum), L"%d", i + 1);
charsNeeded += lstrlenW(policyNum);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, policyNum);
str += lstrlenW(policyNum);
}
charsNeeded += 1; /* ']'*/
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
*str++ = ']';
charsNeeded += certPolicyLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, certPolicy, certPolicyLen * sizeof(WCHAR));
str += certPolicyLen;
}
charsNeeded += headingSepLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, headingSep);
str += headingSepLen;
}
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += lstrlenW(indent);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += policyIdLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, policyId, policyIdLen * sizeof(WCHAR));
str += policyIdLen;
}
charsNeeded += strlen(policy->pszPolicyIdentifier);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
for (src = policy->pszPolicyIdentifier; src && *src;
src++, str++)
*str = *src;
}
charsNeeded += sepLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, sep);
str += sepLen;
}
for (j = 0; j < policy->cPolicyQualifier; j++)
{
CERT_POLICY_QUALIFIER_INFO *qualifierInfo =
&policy->rgPolicyQualifier[j];
DWORD sizeRemaining;
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += lstrlenW(indent);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += 1; /* '['*/
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
*str++ = '[';
charsNeeded += lstrlenW(policyNum);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, policyNum);
str += lstrlenW(policyNum);
}
charsNeeded += 1; /* ','*/
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
*str++ = ',';
swprintf(policyQualifierNum, ARRAY_SIZE(policyQualifierNum), L"%d", j + 1);
charsNeeded += lstrlenW(policyQualifierNum);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, policyQualifierNum);
str += lstrlenW(policyQualifierNum);
}
charsNeeded += 1; /* ']'*/
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
*str++ = ']';
charsNeeded += policyQualifierInfoLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, policyQualifierInfo,
policyQualifierInfoLen * sizeof(WCHAR));
str += policyQualifierInfoLen;
}
charsNeeded += headingSepLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, headingSep);
str += headingSepLen;
}
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 2 * lstrlenW(indent);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += policyQualifierIdLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, policyQualifierId,
policyQualifierIdLen * sizeof(WCHAR));
str += policyQualifierIdLen;
}
if (!strcmp(qualifierInfo->pszPolicyQualifierId,
szOID_PKIX_POLICY_QUALIFIER_CPS))
{
charsNeeded += cpsLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, cps, cpsLen * sizeof(WCHAR));
str += cpsLen;
}
}
else if (!strcmp(qualifierInfo->pszPolicyQualifierId,
szOID_PKIX_POLICY_QUALIFIER_USERNOTICE))
{
charsNeeded += userNoticeLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, userNotice, userNoticeLen * sizeof(WCHAR));
str += userNoticeLen;
}
}
else
{
charsNeeded += strlen(qualifierInfo->pszPolicyQualifierId);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
for (src = qualifierInfo->pszPolicyQualifierId;
src && *src; src++, str++)
*str = *src;
}
}
charsNeeded += sepLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, sep);
str += sepLen;
}
if (dwFormatStrType & CRYPT_FORMAT_STR_MULTI_LINE)
{
charsNeeded += 2 * lstrlenW(indent);
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, indent);
str += lstrlenW(indent);
lstrcpyW(str, indent);
str += lstrlenW(indent);
}
}
charsNeeded += qualifierLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
memcpy(str, qualifier, qualifierLen * sizeof(WCHAR));
str += qualifierLen;
}
charsNeeded += headingSepLen;
if (str && *pcbFormat >= charsNeeded * sizeof(WCHAR))
{
lstrcpyW(str, headingSep);
str += headingSepLen;
}
/* This if block is deliberately redundant with the same if
* block above, in order to keep the code more readable (the
* code flow follows the order in which the strings are output.)
*/
if (!strcmp(qualifierInfo->pszPolicyQualifierId,
szOID_PKIX_POLICY_QUALIFIER_CPS))
{
if (!str || *pcbFormat < charsNeeded * sizeof(WCHAR))
{
/* Insufficient space, determine how much is needed. */
ret = CRYPT_FormatCPS(dwCertEncodingType,
dwFormatStrType, qualifierInfo->Qualifier.pbData,
qualifierInfo->Qualifier.cbData, NULL, &size);
if (ret)
charsNeeded += size - 1;
}
else
{
sizeRemaining = *pcbFormat / sizeof(WCHAR);
sizeRemaining -= str - (LPWSTR)pbFormat;
ret = CRYPT_FormatCPS(dwCertEncodingType,
dwFormatStrType, qualifierInfo->Qualifier.pbData,
qualifierInfo->Qualifier.cbData, str, &sizeRemaining);
if (ret || GetLastError() == ERROR_MORE_DATA)
{
charsNeeded += sizeRemaining - 1;
str += sizeRemaining - 1;
}
}
}
else if (!strcmp(qualifierInfo->pszPolicyQualifierId,
szOID_PKIX_POLICY_QUALIFIER_USERNOTICE))
{
if (!str || *pcbFormat < charsNeeded * sizeof(WCHAR))
{
/* Insufficient space, determine how much is needed. */
ret = CRYPT_FormatUserNotice(dwCertEncodingType,
dwFormatStrType, qualifierInfo->Qualifier.pbData,
qualifierInfo->Qualifier.cbData, NULL, &size);
if (ret)
charsNeeded += size - 1;
}
else
{
sizeRemaining = *pcbFormat / sizeof(WCHAR);
sizeRemaining -= str - (LPWSTR)pbFormat;
ret = CRYPT_FormatUserNotice(dwCertEncodingType,
dwFormatStrType, qualifierInfo->Qualifier.pbData,
qualifierInfo->Qualifier.cbData, str, &sizeRemaining);
if (ret || GetLastError() == ERROR_MORE_DATA)
{
charsNeeded += sizeRemaining - 1;
str += sizeRemaining - 1;
}
}
}
else
{
if (!str || *pcbFormat < charsNeeded * sizeof(WCHAR))
{
/* Insufficient space, determine how much is needed. */
ret = CRYPT_FormatHexString(
qualifierInfo->Qualifier.pbData,
qualifierInfo->Qualifier.cbData, NULL, &size);
if (ret)
charsNeeded += size - 1;
}
else
{
sizeRemaining = *pcbFormat / sizeof(WCHAR);
sizeRemaining -= str - (LPWSTR)pbFormat;
ret = CRYPT_FormatHexString(
qualifierInfo->Qualifier.pbData,
qualifierInfo->Qualifier.cbData, str, &sizeRemaining);
if (ret || GetLastError() == ERROR_MORE_DATA)
{
charsNeeded += sizeRemaining - 1;
str += sizeRemaining - 1;
}
}
}
}
}
LocalFree(policies);
if (ret)
{
if (!pbFormat)
*pcbFormat = charsNeeded * sizeof(WCHAR);
else if (*pcbFormat < charsNeeded * sizeof(WCHAR))
{
*pcbFormat = charsNeeded * sizeof(WCHAR);
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
*pcbFormat = charsNeeded * sizeof(WCHAR);
}
}
return ret;
}
#define szOID_MICROSOFT_Encryption_Key_Preference "1.3.6.1.4.1.311.16.4"
/***********************************************************************
* DllRegisterServer (CRYPTDLG.@)
*/
HRESULT WINAPI DllRegisterServer(void)
{
static WCHAR cryptdlg[] = L"cryptdlg.dll";
static WCHAR wintrust[] = L"wintrust.dll";
static WCHAR certTrustInit[] = L"CertTrustInit";
static WCHAR wintrustCertificateTrust[] = L"WintrustCertificateTrust";
static WCHAR certTrustCertPolicy[] = L"CertTrustCertPolicy";
static WCHAR certTrustFinalPolicy[] = L"CertTrustFinalPolicy";
static WCHAR certTrustCleanup[] = L"CertTrustCleanup";
CRYPT_REGISTER_ACTIONID reg;
GUID guid = CERT_CERTIFICATE_ACTION_VERIFY;
HRESULT hr = S_OK;
memset(&reg, 0, sizeof(reg));
reg.cbStruct = sizeof(reg);
reg.sInitProvider.cbStruct = sizeof(CRYPT_TRUST_REG_ENTRY);
reg.sInitProvider.pwszDLLName = cryptdlg;
reg.sInitProvider.pwszFunctionName = certTrustInit;
reg.sCertificateProvider.cbStruct = sizeof(CRYPT_TRUST_REG_ENTRY);
reg.sCertificateProvider.pwszDLLName = wintrust;
reg.sCertificateProvider.pwszFunctionName = wintrustCertificateTrust;
reg.sCertificatePolicyProvider.cbStruct = sizeof(CRYPT_TRUST_REG_ENTRY);
reg.sCertificatePolicyProvider.pwszDLLName = cryptdlg;
reg.sCertificatePolicyProvider.pwszFunctionName = certTrustCertPolicy;
reg.sFinalPolicyProvider.cbStruct = sizeof(CRYPT_TRUST_REG_ENTRY);
reg.sFinalPolicyProvider.pwszDLLName = cryptdlg;
reg.sFinalPolicyProvider.pwszFunctionName = certTrustFinalPolicy;
reg.sCleanupProvider.cbStruct = sizeof(CRYPT_TRUST_REG_ENTRY);
reg.sCleanupProvider.pwszDLLName = cryptdlg;
reg.sCleanupProvider.pwszFunctionName = certTrustCleanup;
if (!WintrustAddActionID(&guid, WT_ADD_ACTION_ID_RET_RESULT_FLAG, &reg))
hr = GetLastError();
CryptRegisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_ENCODE_OBJECT_FUNC,
"1.3.6.1.4.1.311.16.1.1", L"cryptdlg.dll", "EncodeAttrSequence");
CryptRegisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_ENCODE_OBJECT_FUNC,
szOID_MICROSOFT_Encryption_Key_Preference, L"cryptdlg.dll", "EncodeRecipientID");
CryptRegisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_DECODE_OBJECT_FUNC,
"1.3.6.1.4.1.311.16.1.1", L"cryptdlg.dll", "DecodeAttrSequence");
CryptRegisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_DECODE_OBJECT_FUNC,
szOID_MICROSOFT_Encryption_Key_Preference, L"cryptdlg.dll", "DecodeRecipientID");
CryptRegisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_FORMAT_OBJECT_FUNC,
szOID_PKIX_KP_EMAIL_PROTECTION, L"cryptdlg.dll", "FormatPKIXEmailProtection");
CryptRegisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_FORMAT_OBJECT_FUNC,
szOID_CERT_POLICIES, L"cryptdlg.dll", "FormatVerisignExtension");
return hr;
}
/***********************************************************************
* DllUnregisterServer (CRYPTDLG.@)
*/
HRESULT WINAPI DllUnregisterServer(void)
{
GUID guid = CERT_CERTIFICATE_ACTION_VERIFY;
WintrustRemoveActionID(&guid);
CryptUnregisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_ENCODE_OBJECT_FUNC,
"1.3.6.1.4.1.311.16.1.1");
CryptUnregisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_ENCODE_OBJECT_FUNC,
szOID_MICROSOFT_Encryption_Key_Preference);
CryptUnregisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_DECODE_OBJECT_FUNC,
"1.3.6.1.4.1.311.16.1.1");
CryptUnregisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_DECODE_OBJECT_FUNC,
szOID_MICROSOFT_Encryption_Key_Preference);
CryptUnregisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_FORMAT_OBJECT_FUNC,
szOID_PKIX_KP_EMAIL_PROTECTION);
CryptUnregisterOIDFunction(X509_ASN_ENCODING, CRYPT_OID_FORMAT_OBJECT_FUNC,
szOID_CERT_POLICIES);
return S_OK;
}
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