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cryptnet: Use helper function to get a URL from a CRL distribution points extension.

This commit is contained in:
Juan Lang 2009-12-02 17:07:47 -08:00 committed by Alexandre Julliard
parent 0bfb7951a4
commit f1f231ca40
1 changed files with 109 additions and 102 deletions
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211
dlls/cryptnet/cryptnet_main.c
View File

@ -235,6 +235,113 @@ static BOOL WINAPI CRYPT_GetUrlFromCertificateIssuer(LPCSTR pszUrlOid,
return ret;
}
static BOOL CRYPT_GetUrlFromCRLDistPointsExt(const CRYPT_DATA_BLOB *value,
PCRYPT_URL_ARRAY pUrlArray, DWORD *pcbUrlArray, PCRYPT_URL_INFO pUrlInfo,
DWORD *pcbUrlInfo)
{
BOOL ret;
CRL_DIST_POINTS_INFO *info;
DWORD size;
ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_CRL_DIST_POINTS,
value->pbData, value->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &size);
if (ret)
{
DWORD i, cUrl, bytesNeeded = sizeof(CRYPT_URL_ARRAY);
for (i = 0, cUrl = 0; i < info->cDistPoint; i++)
if (info->rgDistPoint[i].DistPointName.dwDistPointNameChoice
== CRL_DIST_POINT_FULL_NAME)
{
DWORD j;
CERT_ALT_NAME_INFO *name =
&info->rgDistPoint[i].DistPointName.u.FullName;
for (j = 0; j < name->cAltEntry; j++)
if (name->rgAltEntry[j].dwAltNameChoice ==
CERT_ALT_NAME_URL)
{
if (name->rgAltEntry[j].u.pwszURL)
{
cUrl++;
bytesNeeded += sizeof(LPWSTR) +
(lstrlenW(name->rgAltEntry[j].u.pwszURL) + 1)
* sizeof(WCHAR);
}
}
}
if (!pcbUrlArray)
{
SetLastError(E_INVALIDARG);
ret = FALSE;
}
else if (!pUrlArray)
*pcbUrlArray = bytesNeeded;
else if (*pcbUrlArray < bytesNeeded)
{
SetLastError(ERROR_MORE_DATA);
*pcbUrlArray = bytesNeeded;
ret = FALSE;
}
else
{
LPWSTR nextUrl;
*pcbUrlArray = bytesNeeded;
pUrlArray->cUrl = 0;
pUrlArray->rgwszUrl =
(LPWSTR *)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY));
nextUrl = (LPWSTR)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY)
+ cUrl * sizeof(LPWSTR));
for (i = 0; i < info->cDistPoint; i++)
if (info->rgDistPoint[i].DistPointName.dwDistPointNameChoice
== CRL_DIST_POINT_FULL_NAME)
{
DWORD j;
CERT_ALT_NAME_INFO *name =
&info->rgDistPoint[i].DistPointName.u.FullName;
for (j = 0; j < name->cAltEntry; j++)
if (name->rgAltEntry[j].dwAltNameChoice ==
CERT_ALT_NAME_URL)
{
if (name->rgAltEntry[j].u.pwszURL)
{
lstrcpyW(nextUrl,
name->rgAltEntry[j].u.pwszURL);
pUrlArray->rgwszUrl[pUrlArray->cUrl++] =
nextUrl;
nextUrl +=
(lstrlenW(name->rgAltEntry[j].u.pwszURL) + 1);
}
}
}
}
if (ret)
{
if (pcbUrlInfo)
{
FIXME("url info: stub\n");
if (!pUrlInfo)
*pcbUrlInfo = sizeof(CRYPT_URL_INFO);
else if (*pcbUrlInfo < sizeof(CRYPT_URL_INFO))
{
*pcbUrlInfo = sizeof(CRYPT_URL_INFO);
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
{
*pcbUrlInfo = sizeof(CRYPT_URL_INFO);
memset(pUrlInfo, 0, sizeof(CRYPT_URL_INFO));
}
}
}
LocalFree(info);
}
return ret;
}
static BOOL WINAPI CRYPT_GetUrlFromCertificateCRLDistPoint(LPCSTR pszUrlOid,
LPVOID pvPara, DWORD dwFlags, PCRYPT_URL_ARRAY pUrlArray, DWORD *pcbUrlArray,
PCRYPT_URL_INFO pUrlInfo, DWORD *pcbUrlInfo, LPVOID pvReserved)
@ -251,108 +358,8 @@ static BOOL WINAPI CRYPT_GetUrlFromCertificateCRLDistPoint(LPCSTR pszUrlOid,
}
if ((ext = CertFindExtension(szOID_CRL_DIST_POINTS,
cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension)))
{
CRL_DIST_POINTS_INFO *info;
DWORD size;
ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_CRL_DIST_POINTS,
ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL,
&info, &size);
if (ret)
{
DWORD i, cUrl, bytesNeeded = sizeof(CRYPT_URL_ARRAY);
for (i = 0, cUrl = 0; i < info->cDistPoint; i++)
if (info->rgDistPoint[i].DistPointName.dwDistPointNameChoice
== CRL_DIST_POINT_FULL_NAME)
{
DWORD j;
CERT_ALT_NAME_INFO *name =
&info->rgDistPoint[i].DistPointName.u.FullName;
for (j = 0; j < name->cAltEntry; j++)
if (name->rgAltEntry[j].dwAltNameChoice ==
CERT_ALT_NAME_URL)
{
if (name->rgAltEntry[j].u.pwszURL)
{
cUrl++;
bytesNeeded += sizeof(LPWSTR) +
(lstrlenW(name->rgAltEntry[j].u.pwszURL) + 1)
* sizeof(WCHAR);
}
}
}
if (!pcbUrlArray)
{
SetLastError(E_INVALIDARG);
ret = FALSE;
}
else if (!pUrlArray)
*pcbUrlArray = bytesNeeded;
else if (*pcbUrlArray < bytesNeeded)
{
SetLastError(ERROR_MORE_DATA);
*pcbUrlArray = bytesNeeded;
ret = FALSE;
}
else
{
LPWSTR nextUrl;
*pcbUrlArray = bytesNeeded;
pUrlArray->cUrl = 0;
pUrlArray->rgwszUrl =
(LPWSTR *)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY));
nextUrl = (LPWSTR)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY)
+ cUrl * sizeof(LPWSTR));
for (i = 0; i < info->cDistPoint; i++)
if (info->rgDistPoint[i].DistPointName.dwDistPointNameChoice
== CRL_DIST_POINT_FULL_NAME)
{
DWORD j;
CERT_ALT_NAME_INFO *name =
&info->rgDistPoint[i].DistPointName.u.FullName;
for (j = 0; j < name->cAltEntry; j++)
if (name->rgAltEntry[j].dwAltNameChoice ==
CERT_ALT_NAME_URL)
{
if (name->rgAltEntry[j].u.pwszURL)
{
lstrcpyW(nextUrl,
name->rgAltEntry[j].u.pwszURL);
pUrlArray->rgwszUrl[pUrlArray->cUrl++] =
nextUrl;
nextUrl +=
(lstrlenW(name->rgAltEntry[j].u.pwszURL) + 1);
}
}
}
}
if (ret)
{
if (pcbUrlInfo)
{
FIXME("url info: stub\n");
if (!pUrlInfo)
*pcbUrlInfo = sizeof(CRYPT_URL_INFO);
else if (*pcbUrlInfo < sizeof(CRYPT_URL_INFO))
{
*pcbUrlInfo = sizeof(CRYPT_URL_INFO);
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
{
*pcbUrlInfo = sizeof(CRYPT_URL_INFO);
memset(pUrlInfo, 0, sizeof(CRYPT_URL_INFO));
}
}
}
LocalFree(info);
}
}
ret = CRYPT_GetUrlFromCRLDistPointsExt(&ext->Value, pUrlArray,
pcbUrlArray, pUrlInfo, pcbUrlInfo);
else
SetLastError(CRYPT_E_NOT_FOUND);
return ret;