521 lines
17 KiB
C
521 lines
17 KiB
C
/*
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* Copyright 2008 Maarten Lankhorst
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "winreg.h"
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#include "wincrypt.h"
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#include "wintrust.h"
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#include "winuser.h"
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#include "cryptdlg.h"
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#include "cryptuiapi.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(cryptdlg);
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BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
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{
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TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
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switch (fdwReason)
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{
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case DLL_WINE_PREATTACH:
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return FALSE; /* prefer native version */
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(hinstDLL);
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break;
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case DLL_PROCESS_DETACH:
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break;
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default:
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break;
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}
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return TRUE;
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}
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/***********************************************************************
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* GetFriendlyNameOfCertA (CRYPTDLG.@)
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*/
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DWORD WINAPI GetFriendlyNameOfCertA(PCCERT_CONTEXT pccert, LPSTR pchBuffer,
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DWORD cchBuffer)
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{
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return CertGetNameStringA(pccert, CERT_NAME_FRIENDLY_DISPLAY_TYPE, 0, NULL,
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pchBuffer, cchBuffer);
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}
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/***********************************************************************
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* GetFriendlyNameOfCertW (CRYPTDLG.@)
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*/
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DWORD WINAPI GetFriendlyNameOfCertW(PCCERT_CONTEXT pccert, LPWSTR pchBuffer,
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DWORD cchBuffer)
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{
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return CertGetNameStringW(pccert, CERT_NAME_FRIENDLY_DISPLAY_TYPE, 0, NULL,
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pchBuffer, cchBuffer);
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}
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/***********************************************************************
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* CertTrustInit (CRYPTDLG.@)
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*/
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HRESULT WINAPI CertTrustInit(CRYPT_PROVIDER_DATA *pProvData)
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{
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HRESULT ret = S_FALSE;
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TRACE("(%p)\n", pProvData);
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if (pProvData->padwTrustStepErrors &&
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!pProvData->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_WVTINIT])
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ret = S_OK;
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TRACE("returning %08x\n", ret);
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return ret;
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}
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/***********************************************************************
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* CertTrustCertPolicy (CRYPTDLG.@)
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*/
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BOOL WINAPI CertTrustCertPolicy(CRYPT_PROVIDER_DATA *pProvData, DWORD idxSigner, BOOL fCounterSignerChain, DWORD idxCounterSigner)
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{
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FIXME("(%p, %d, %s, %d)\n", pProvData, idxSigner, fCounterSignerChain ? "TRUE" : "FALSE", idxCounterSigner);
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return FALSE;
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}
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/***********************************************************************
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* CertTrustCleanup (CRYPTDLG.@)
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*/
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HRESULT WINAPI CertTrustCleanup(CRYPT_PROVIDER_DATA *pProvData)
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{
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FIXME("(%p)\n", pProvData);
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return E_NOTIMPL;
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}
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static BOOL CRYPTDLG_CheckOnlineCRL(void)
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{
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static const WCHAR policyFlagsKey[] = { 'S','o','f','t','w','a','r','e',
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'\\','M','i','c','r','o','s','o','f','t','\\','C','r','y','p','t','o','g',
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'r','a','p','h','y','\\','{','7','8','0','1','e','b','d','0','-','c','f',
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'4','b','-','1','1','d','0','-','8','5','1','f','-','0','0','6','0','9',
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'7','9','3','8','7','e','a','}',0 };
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static const WCHAR policyFlags[] = { 'P','o','l','i','c','y','F','l','a',
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'g','s',0 };
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HKEY key;
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BOOL ret = FALSE;
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if (!RegOpenKeyExW(HKEY_LOCAL_MACHINE, policyFlagsKey, 0, KEY_READ, &key))
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{
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DWORD type, flags, size = sizeof(flags);
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if (!RegQueryValueExW(key, policyFlags, NULL, &type, (BYTE *)&flags,
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&size) && type == REG_DWORD)
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{
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/* The flag values aren't defined in any header I'm aware of, but
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* this value is well documented on the net.
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*/
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if (flags & 0x00010000)
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ret = TRUE;
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}
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RegCloseKey(key);
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}
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return ret;
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}
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/* Returns TRUE if pCert is not in the Disallowed system store, or FALSE if it
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* is.
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*/
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static BOOL CRYPTDLG_IsCertAllowed(PCCERT_CONTEXT pCert)
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{
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BOOL ret;
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BYTE hash[20];
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DWORD size = sizeof(hash);
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if ((ret = CertGetCertificateContextProperty(pCert,
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CERT_SIGNATURE_HASH_PROP_ID, hash, &size)))
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{
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static const WCHAR disallowedW[] =
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{ 'D','i','s','a','l','l','o','w','e','d',0 };
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HCERTSTORE disallowed = CertOpenStore(CERT_STORE_PROV_SYSTEM_W,
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X509_ASN_ENCODING, 0, CERT_SYSTEM_STORE_CURRENT_USER, disallowedW);
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if (disallowed)
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{
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PCCERT_CONTEXT found = CertFindCertificateInStore(disallowed,
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X509_ASN_ENCODING, 0, CERT_FIND_SIGNATURE_HASH, hash, NULL);
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if (found)
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{
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ret = FALSE;
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CertFreeCertificateContext(found);
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}
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CertCloseStore(disallowed, 0);
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}
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}
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return ret;
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}
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static DWORD CRYPTDLG_TrustStatusToConfidence(DWORD errorStatus)
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{
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DWORD confidence = 0;
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confidence = 0;
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if (!(errorStatus & CERT_TRUST_IS_NOT_SIGNATURE_VALID))
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confidence |= CERT_CONFIDENCE_SIG;
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if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_VALID))
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confidence |= CERT_CONFIDENCE_TIME;
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if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_NESTED))
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confidence |= CERT_CONFIDENCE_TIMENEST;
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return confidence;
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}
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static BOOL CRYPTDLG_CopyChain(CRYPT_PROVIDER_DATA *data,
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PCCERT_CHAIN_CONTEXT chain)
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{
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BOOL ret;
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CRYPT_PROVIDER_SGNR signer;
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PCERT_SIMPLE_CHAIN simpleChain = chain->rgpChain[0];
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DWORD i;
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memset(&signer, 0, sizeof(signer));
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signer.cbStruct = sizeof(signer);
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ret = data->psPfns->pfnAddSgnr2Chain(data, FALSE, 0, &signer);
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if (ret)
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{
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CRYPT_PROVIDER_SGNR *sgnr = WTHelperGetProvSignerFromChain(data, 0,
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FALSE, 0);
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if (sgnr)
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{
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sgnr->dwError = simpleChain->TrustStatus.dwErrorStatus;
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sgnr->pChainContext = CertDuplicateCertificateChain(chain);
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}
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else
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ret = FALSE;
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for (i = 0; ret && i < simpleChain->cElement; i++)
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{
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ret = data->psPfns->pfnAddCert2Chain(data, 0, FALSE, 0,
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simpleChain->rgpElement[i]->pCertContext);
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if (ret)
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{
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CRYPT_PROVIDER_CERT *cert;
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if ((cert = WTHelperGetProvCertFromChain(sgnr, i)))
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{
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CERT_CHAIN_ELEMENT *element = simpleChain->rgpElement[i];
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cert->dwConfidence = CRYPTDLG_TrustStatusToConfidence(
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element->TrustStatus.dwErrorStatus);
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cert->dwError = element->TrustStatus.dwErrorStatus;
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cert->pChainElement = element;
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}
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else
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ret = FALSE;
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}
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}
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}
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return ret;
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}
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static CERT_VERIFY_CERTIFICATE_TRUST *CRYPTDLG_GetVerifyData(
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CRYPT_PROVIDER_DATA *data)
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{
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CERT_VERIFY_CERTIFICATE_TRUST *pCert = NULL;
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/* This should always be true, but just in case the calling function is
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* called directly:
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*/
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if (data->pWintrustData->dwUnionChoice == WTD_CHOICE_BLOB &&
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data->pWintrustData->pBlob && data->pWintrustData->pBlob->cbMemObject ==
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sizeof(CERT_VERIFY_CERTIFICATE_TRUST) &&
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data->pWintrustData->pBlob->pbMemObject)
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pCert = (CERT_VERIFY_CERTIFICATE_TRUST *)
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data->pWintrustData->pBlob->pbMemObject;
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return pCert;
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}
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static HCERTCHAINENGINE CRYPTDLG_MakeEngine(CERT_VERIFY_CERTIFICATE_TRUST *cert)
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{
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HCERTCHAINENGINE engine = NULL;
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HCERTSTORE root = NULL, trust = NULL;
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DWORD i;
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if (cert->cRootStores)
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{
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root = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
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CERT_STORE_CREATE_NEW_FLAG, NULL);
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if (root)
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{
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for (i = 0; i < cert->cRootStores; i++)
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CertAddStoreToCollection(root, cert->rghstoreRoots[i], 0, 0);
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}
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}
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if (cert->cTrustStores)
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{
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trust = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
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CERT_STORE_CREATE_NEW_FLAG, NULL);
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if (root)
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{
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for (i = 0; i < cert->cTrustStores; i++)
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CertAddStoreToCollection(trust, cert->rghstoreTrust[i], 0, 0);
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}
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}
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if (cert->cRootStores || cert->cStores || cert->cTrustStores)
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{
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CERT_CHAIN_ENGINE_CONFIG config;
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memset(&config, 0, sizeof(config));
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config.cbSize = sizeof(config);
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config.hRestrictedRoot = root;
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config.hRestrictedTrust = trust;
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config.cAdditionalStore = cert->cStores;
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config.rghAdditionalStore = cert->rghstoreCAs;
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config.hRestrictedRoot = root;
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CertCreateCertificateChainEngine(&config, &engine);
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CertCloseStore(root, 0);
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CertCloseStore(trust, 0);
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}
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return engine;
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}
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/***********************************************************************
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* CertTrustFinalPolicy (CRYPTDLG.@)
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*/
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HRESULT WINAPI CertTrustFinalPolicy(CRYPT_PROVIDER_DATA *data)
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{
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BOOL ret;
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DWORD err = S_OK;
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CERT_VERIFY_CERTIFICATE_TRUST *pCert = CRYPTDLG_GetVerifyData(data);
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TRACE("(%p)\n", data);
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if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
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FIXME("unimplemented for UI choice %d\n",
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data->pWintrustData->dwUIChoice);
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if (pCert)
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{
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DWORD flags = 0;
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CERT_CHAIN_PARA chainPara;
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HCERTCHAINENGINE engine;
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memset(&chainPara, 0, sizeof(chainPara));
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chainPara.cbSize = sizeof(chainPara);
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if (CRYPTDLG_CheckOnlineCRL())
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flags |= CERT_CHAIN_REVOCATION_CHECK_END_CERT;
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engine = CRYPTDLG_MakeEngine(pCert);
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GetSystemTimeAsFileTime(&data->sftSystemTime);
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ret = CRYPTDLG_IsCertAllowed(pCert->pccert);
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if (ret)
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{
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PCCERT_CHAIN_CONTEXT chain;
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ret = CertGetCertificateChain(engine, pCert->pccert,
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&data->sftSystemTime, NULL, &chainPara, flags, NULL, &chain);
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if (ret)
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{
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if (chain->cChain != 1)
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{
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FIXME("unimplemented for more than 1 simple chain\n");
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err = TRUST_E_SUBJECT_FORM_UNKNOWN;
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ret = FALSE;
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}
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else if ((ret = CRYPTDLG_CopyChain(data, chain)))
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{
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if (CertVerifyTimeValidity(&data->sftSystemTime,
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pCert->pccert->pCertInfo))
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{
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ret = FALSE;
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err = CERT_E_EXPIRED;
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}
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}
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else
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err = TRUST_E_SYSTEM_ERROR;
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CertFreeCertificateChain(chain);
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}
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else
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err = TRUST_E_SUBJECT_NOT_TRUSTED;
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}
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CertFreeCertificateChainEngine(engine);
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}
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else
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{
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ret = FALSE;
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err = TRUST_E_NOSIGNATURE;
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}
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/* Oddly, native doesn't set the error in the trust step error location,
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* probably because this action is more advisory than anything else.
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* Instead it stores it as the final error, but the function "succeeds" in
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* any case.
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*/
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if (!ret)
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data->dwFinalError = err;
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TRACE("returning %d (%08x)\n", S_OK, data->dwFinalError);
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return S_OK;
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}
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/***********************************************************************
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* CertViewPropertiesA (CRYPTDLG.@)
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*/
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BOOL WINAPI CertViewPropertiesA(CERT_VIEWPROPERTIES_STRUCT_A *info)
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{
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CERT_VIEWPROPERTIES_STRUCT_W infoW;
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LPWSTR title = NULL;
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BOOL ret;
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TRACE("(%p)\n", info);
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memcpy(&infoW, info, sizeof(infoW));
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if (info->szTitle)
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{
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int len = MultiByteToWideChar(CP_ACP, 0, info->szTitle, -1, NULL, 0);
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title = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
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if (title)
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{
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MultiByteToWideChar(CP_ACP, 0, info->szTitle, -1, title, len);
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infoW.szTitle = title;
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}
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else
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{
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ret = FALSE;
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goto error;
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}
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}
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ret = CertViewPropertiesW(&infoW);
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HeapFree(GetProcessHeap(), 0, title);
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error:
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return ret;
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}
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/***********************************************************************
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* CertViewPropertiesW (CRYPTDLG.@)
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*/
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BOOL WINAPI CertViewPropertiesW(CERT_VIEWPROPERTIES_STRUCT_W *info)
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{
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static GUID cert_action_verify = CERT_CERTIFICATE_ACTION_VERIFY;
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CERT_VERIFY_CERTIFICATE_TRUST trust;
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WINTRUST_BLOB_INFO blob;
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WINTRUST_DATA wtd;
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LONG err;
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BOOL ret;
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TRACE("(%p)\n", info);
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memset(&trust, 0, sizeof(trust));
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trust.cbSize = sizeof(trust);
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trust.pccert = info->pCertContext;
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trust.cRootStores = info->cRootStores;
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trust.rghstoreRoots = info->rghstoreRoots;
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trust.cStores = info->cStores;
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trust.rghstoreCAs = info->rghstoreCAs;
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trust.cTrustStores = info->cTrustStores;
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trust.rghstoreTrust = info->rghstoreTrust;
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memset(&blob, 0, sizeof(blob));
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blob.cbStruct = sizeof(blob);
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blob.cbMemObject = sizeof(trust);
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blob.pbMemObject = (BYTE *)&trust;
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memset(&wtd, 0, sizeof(wtd));
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wtd.cbStruct = sizeof(wtd);
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wtd.dwUIChoice = WTD_UI_NONE;
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wtd.dwUnionChoice = WTD_CHOICE_BLOB;
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wtd.pBlob = &blob;
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wtd.dwStateAction = WTD_STATEACTION_VERIFY;
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err = WinVerifyTrust(NULL, &cert_action_verify, &wtd);
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if (err == ERROR_SUCCESS)
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{
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CRYPTUI_VIEWCERTIFICATE_STRUCTW uiInfo;
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BOOL propsChanged = FALSE;
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memset(&uiInfo, 0, sizeof(uiInfo));
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uiInfo.dwSize = sizeof(uiInfo);
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uiInfo.hwndParent = info->hwndParent;
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uiInfo.dwFlags =
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CRYPTUI_DISABLE_ADDTOSTORE | CRYPTUI_ENABLE_EDITPROPERTIES;
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uiInfo.szTitle = info->szTitle;
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uiInfo.pCertContext = info->pCertContext;
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uiInfo.cPurposes = info->cArrayPurposes;
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uiInfo.rgszPurposes = (LPCSTR *)info->arrayPurposes;
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uiInfo.hWVTStateData = wtd.hWVTStateData;
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uiInfo.fpCryptProviderDataTrustedUsage = TRUE;
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uiInfo.cPropSheetPages = info->cArrayPropSheetPages;
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uiInfo.rgPropSheetPages = info->arrayPropSheetPages;
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uiInfo.nStartPage = info->nStartPage;
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ret = CryptUIDlgViewCertificateW(&uiInfo, &propsChanged);
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wtd.dwStateAction = WTD_STATEACTION_CLOSE;
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WinVerifyTrust(NULL, &cert_action_verify, &wtd);
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}
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else
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ret = FALSE;
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return ret;
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}
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/***********************************************************************
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* DllRegisterServer (CRYPTDLG.@)
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*/
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HRESULT WINAPI DllRegisterServer(void)
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{
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static WCHAR cryptdlg[] = { 'c','r','y','p','t','d','l','g','.',
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'd','l','l',0 };
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static WCHAR wintrust[] = { 'w','i','n','t','r','u','s','t','.',
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'd','l','l',0 };
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static WCHAR certTrustInit[] = { 'C','e','r','t','T','r','u','s','t',
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'I','n','i','t',0 };
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static WCHAR wintrustCertificateTrust[] = { 'W','i','n','t','r','u','s','t',
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'C','e','r','t','i','f','i','c','a','t','e','T','r','u','s','t',0 };
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static WCHAR certTrustCertPolicy[] = { 'C','e','r','t','T','r','u','s','t',
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'C','e','r','t','P','o','l','i','c','y',0 };
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static WCHAR certTrustFinalPolicy[] = { 'C','e','r','t','T','r','u','s','t',
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'F','i','n','a','l','P','o','l','i','c','y',0 };
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static WCHAR certTrustCleanup[] = { 'C','e','r','t','T','r','u','s','t',
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'C','l','e','a','n','u','p',0 };
|
|
CRYPT_REGISTER_ACTIONID reg;
|
|
GUID guid = CERT_CERTIFICATE_ACTION_VERIFY;
|
|
HRESULT hr = S_OK;
|
|
|
|
memset(®, 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, ®))
|
|
hr = GetLastError();
|
|
return hr;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DllUnregisterServer (CRYPTDLG.@)
|
|
*/
|
|
HRESULT WINAPI DllUnregisterServer(void)
|
|
{
|
|
GUID guid = CERT_CERTIFICATE_ACTION_VERIFY;
|
|
|
|
WintrustRemoveActionID(&guid);
|
|
return S_OK;
|
|
}
|