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reactos/dll/win32/crypt32/str.c
Amine Khaldi 997d44c915 [CRYPT32] Sync with Wine Staging 3.17. CORE-15127
2018-10-01 12:47:51 +01:00

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/*
* Copyright 2006 Juan Lang for CodeWeavers
*
* 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
*/
#include <stdarg.h>
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winuser.h"
#include "wincrypt.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "crypt32_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
DWORD WINAPI CertRDNValueToStrA(DWORD dwValueType, PCERT_RDN_VALUE_BLOB pValue,
LPSTR psz, DWORD csz)
{
DWORD ret = 0, len;
TRACE("(%d, %p, %p, %d)\n", dwValueType, pValue, psz, csz);
switch (dwValueType)
{
case CERT_RDN_ANY_TYPE:
break;
case CERT_RDN_NUMERIC_STRING:
case CERT_RDN_PRINTABLE_STRING:
case CERT_RDN_TELETEX_STRING:
case CERT_RDN_VIDEOTEX_STRING:
case CERT_RDN_IA5_STRING:
case CERT_RDN_GRAPHIC_STRING:
case CERT_RDN_VISIBLE_STRING:
case CERT_RDN_GENERAL_STRING:
len = pValue->cbData;
if (!psz || !csz)
ret = len;
else
{
DWORD chars = min(len, csz - 1);
if (chars)
{
memcpy(psz, pValue->pbData, chars);
ret += chars;
csz -= chars;
}
}
break;
case CERT_RDN_BMP_STRING:
case CERT_RDN_UTF8_STRING:
len = WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)pValue->pbData,
pValue->cbData / sizeof(WCHAR), NULL, 0, NULL, NULL);
if (!psz || !csz)
ret = len;
else
{
DWORD chars = min(pValue->cbData / sizeof(WCHAR), csz - 1);
if (chars)
{
ret = WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)pValue->pbData,
chars, psz, csz - 1, NULL, NULL);
csz -= ret;
}
}
break;
default:
FIXME("string type %d unimplemented\n", dwValueType);
}
if (psz && csz)
{
*(psz + ret) = '\0';
csz--;
ret++;
}
else
ret++;
TRACE("returning %d (%s)\n", ret, debugstr_a(psz));
return ret;
}
DWORD WINAPI CertRDNValueToStrW(DWORD dwValueType, PCERT_RDN_VALUE_BLOB pValue,
LPWSTR psz, DWORD csz)
{
DWORD ret = 0, len, i, strLen;
TRACE("(%d, %p, %p, %d)\n", dwValueType, pValue, psz, csz);
switch (dwValueType)
{
case CERT_RDN_ANY_TYPE:
break;
case CERT_RDN_NUMERIC_STRING:
case CERT_RDN_PRINTABLE_STRING:
case CERT_RDN_TELETEX_STRING:
case CERT_RDN_VIDEOTEX_STRING:
case CERT_RDN_IA5_STRING:
case CERT_RDN_GRAPHIC_STRING:
case CERT_RDN_VISIBLE_STRING:
case CERT_RDN_GENERAL_STRING:
len = pValue->cbData;
if (!psz || !csz)
ret = len;
else
{
WCHAR *ptr = psz;
for (i = 0; i < pValue->cbData && ptr - psz < csz; ptr++, i++)
*ptr = pValue->pbData[i];
ret = ptr - psz;
}
break;
case CERT_RDN_BMP_STRING:
case CERT_RDN_UTF8_STRING:
strLen = len = pValue->cbData / sizeof(WCHAR);
if (!psz || !csz)
ret = len;
else
{
WCHAR *ptr = psz;
for (i = 0; i < strLen && ptr - psz < csz; ptr++, i++)
*ptr = ((LPCWSTR)pValue->pbData)[i];
ret = ptr - psz;
}
break;
default:
FIXME("string type %d unimplemented\n", dwValueType);
}
if (psz && csz)
{
*(psz + ret) = '\0';
csz--;
ret++;
}
else
ret++;
TRACE("returning %d (%s)\n", ret, debugstr_w(psz));
return ret;
}
static inline BOOL is_quotable_char(char c)
{
switch(c)
{
case '+':
case ',':
case '"':
case '=':
case '<':
case '>':
case ';':
case '#':
case '\n':
return TRUE;
default:
return FALSE;
}
}
static DWORD quote_rdn_value_to_str_a(DWORD dwValueType,
PCERT_RDN_VALUE_BLOB pValue, LPSTR psz, DWORD csz)
{
DWORD ret = 0, len, i;
BOOL needsQuotes = FALSE;
TRACE("(%d, %p, %p, %d)\n", dwValueType, pValue, psz, csz);
switch (dwValueType)
{
case CERT_RDN_ANY_TYPE:
break;
case CERT_RDN_NUMERIC_STRING:
case CERT_RDN_PRINTABLE_STRING:
case CERT_RDN_TELETEX_STRING:
case CERT_RDN_VIDEOTEX_STRING:
case CERT_RDN_IA5_STRING:
case CERT_RDN_GRAPHIC_STRING:
case CERT_RDN_VISIBLE_STRING:
case CERT_RDN_GENERAL_STRING:
len = pValue->cbData;
if (pValue->cbData && isspace(pValue->pbData[0]))
needsQuotes = TRUE;
if (pValue->cbData && isspace(pValue->pbData[pValue->cbData - 1]))
needsQuotes = TRUE;
for (i = 0; i < pValue->cbData; i++)
{
if (is_quotable_char(pValue->pbData[i]))
needsQuotes = TRUE;
if (pValue->pbData[i] == '"')
len += 1;
}
if (needsQuotes)
len += 2;
if (!psz || !csz)
ret = len;
else
{
char *ptr = psz;
if (needsQuotes)
*ptr++ = '"';
for (i = 0; i < pValue->cbData && ptr - psz < csz; ptr++, i++)
{
*ptr = pValue->pbData[i];
if (pValue->pbData[i] == '"' && ptr - psz < csz - 1)
*(++ptr) = '"';
}
if (needsQuotes && ptr - psz < csz)
*ptr++ = '"';
ret = ptr - psz;
}
break;
case CERT_RDN_BMP_STRING:
case CERT_RDN_UTF8_STRING:
len = WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)pValue->pbData,
pValue->cbData / sizeof(WCHAR), NULL, 0, NULL, NULL);
if (pValue->cbData && isspaceW(((LPCWSTR)pValue->pbData)[0]))
needsQuotes = TRUE;
if (pValue->cbData &&
isspaceW(((LPCWSTR)pValue->pbData)[pValue->cbData / sizeof(WCHAR)-1]))
needsQuotes = TRUE;
for (i = 0; i < pValue->cbData / sizeof(WCHAR); i++)
{
if (is_quotable_char(((LPCWSTR)pValue->pbData)[i]))
needsQuotes = TRUE;
if (((LPCWSTR)pValue->pbData)[i] == '"')
len += 1;
}
if (needsQuotes)
len += 2;
if (!psz || !csz)
ret = len;
else
{
char *dst = psz;
if (needsQuotes)
*dst++ = '"';
for (i = 0; i < pValue->cbData / sizeof(WCHAR) &&
dst - psz < csz; dst++, i++)
{
LPCWSTR src = (LPCWSTR)pValue->pbData + i;
WideCharToMultiByte(CP_ACP, 0, src, 1, dst,
csz - (dst - psz) - 1, NULL, NULL);
if (*src == '"' && dst - psz < csz - 1)
*(++dst) = '"';
}
if (needsQuotes && dst - psz < csz)
*dst++ = '"';
ret = dst - psz;
}
break;
default:
FIXME("string type %d unimplemented\n", dwValueType);
}
if (psz && csz)
{
*(psz + ret) = '\0';
csz--;
ret++;
}
else
ret++;
TRACE("returning %d (%s)\n", ret, debugstr_a(psz));
return ret;
}
static DWORD quote_rdn_value_to_str_w(DWORD dwValueType,
PCERT_RDN_VALUE_BLOB pValue, LPWSTR psz, DWORD csz)
{
DWORD ret = 0, len, i, strLen;
BOOL needsQuotes = FALSE;
TRACE("(%d, %p, %p, %d)\n", dwValueType, pValue, psz, csz);
switch (dwValueType)
{
case CERT_RDN_ANY_TYPE:
break;
case CERT_RDN_NUMERIC_STRING:
case CERT_RDN_PRINTABLE_STRING:
case CERT_RDN_TELETEX_STRING:
case CERT_RDN_VIDEOTEX_STRING:
case CERT_RDN_IA5_STRING:
case CERT_RDN_GRAPHIC_STRING:
case CERT_RDN_VISIBLE_STRING:
case CERT_RDN_GENERAL_STRING:
len = pValue->cbData;
if (pValue->cbData && isspace(pValue->pbData[0]))
needsQuotes = TRUE;
if (pValue->cbData && isspace(pValue->pbData[pValue->cbData - 1]))
needsQuotes = TRUE;
for (i = 0; i < pValue->cbData; i++)
{
if (is_quotable_char(pValue->pbData[i]))
needsQuotes = TRUE;
if (pValue->pbData[i] == '"')
len += 1;
}
if (needsQuotes)
len += 2;
if (!psz || !csz)
ret = len;
else
{
WCHAR *ptr = psz;
if (needsQuotes)
*ptr++ = '"';
for (i = 0; i < pValue->cbData && ptr - psz < csz; ptr++, i++)
{
*ptr = pValue->pbData[i];
if (pValue->pbData[i] == '"' && ptr - psz < csz - 1)
*(++ptr) = '"';
}
if (needsQuotes && ptr - psz < csz)
*ptr++ = '"';
ret = ptr - psz;
}
break;
case CERT_RDN_BMP_STRING:
case CERT_RDN_UTF8_STRING:
strLen = len = pValue->cbData / sizeof(WCHAR);
if (pValue->cbData && isspace(pValue->pbData[0]))
needsQuotes = TRUE;
if (pValue->cbData && isspace(pValue->pbData[strLen - 1]))
needsQuotes = TRUE;
for (i = 0; i < strLen; i++)
{
if (is_quotable_char(((LPCWSTR)pValue->pbData)[i]))
needsQuotes = TRUE;
if (((LPCWSTR)pValue->pbData)[i] == '"')
len += 1;
}
if (needsQuotes)
len += 2;
if (!psz || !csz)
ret = len;
else
{
WCHAR *ptr = psz;
if (needsQuotes)
*ptr++ = '"';
for (i = 0; i < strLen && ptr - psz < csz; ptr++, i++)
{
*ptr = ((LPCWSTR)pValue->pbData)[i];
if (((LPCWSTR)pValue->pbData)[i] == '"' && ptr - psz < csz - 1)
*(++ptr) = '"';
}
if (needsQuotes && ptr - psz < csz)
*ptr++ = '"';
ret = ptr - psz;
}
break;
default:
FIXME("string type %d unimplemented\n", dwValueType);
}
if (psz && csz)
{
*(psz + ret) = '\0';
csz--;
ret++;
}
else
ret++;
TRACE("returning %d (%s)\n", ret, debugstr_w(psz));
return ret;
}
/* Adds the prefix prefix to the string pointed to by psz, followed by the
* character '='. Copies no more than csz characters. Returns the number of
* characters copied. If psz is NULL, returns the number of characters that
* would be copied.
*/
static DWORD CRYPT_AddPrefixA(LPCSTR prefix, LPSTR psz, DWORD csz)
{
DWORD chars;
TRACE("(%s, %p, %d)\n", debugstr_a(prefix), psz, csz);
if (psz)
{
chars = min(strlen(prefix), csz);
memcpy(psz, prefix, chars);
*(psz + chars) = '=';
chars++;
}
else
chars = lstrlenA(prefix) + 1;
return chars;
}
DWORD WINAPI CertNameToStrA(DWORD dwCertEncodingType, PCERT_NAME_BLOB pName,
DWORD dwStrType, LPSTR psz, DWORD csz)
{
static const DWORD unsupportedFlags = CERT_NAME_STR_NO_QUOTING_FLAG |
CERT_NAME_STR_ENABLE_T61_UNICODE_FLAG;
static const char commaSep[] = ", ";
static const char semiSep[] = "; ";
static const char crlfSep[] = "\r\n";
static const char plusSep[] = " + ";
static const char spaceSep[] = " ";
DWORD ret = 0, bytes = 0;
BOOL bRet;
CERT_NAME_INFO *info;
TRACE("(%d, %p, %08x, %p, %d)\n", dwCertEncodingType, pName, dwStrType,
psz, csz);
if (dwStrType & unsupportedFlags)
FIXME("unsupported flags: %08x\n", dwStrType & unsupportedFlags);
bRet = CryptDecodeObjectEx(dwCertEncodingType, X509_NAME, pName->pbData,
pName->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &bytes);
if (bRet)
{
DWORD i, j, sepLen, rdnSepLen;
LPCSTR sep, rdnSep;
BOOL reverse = dwStrType & CERT_NAME_STR_REVERSE_FLAG;
const CERT_RDN *rdn = info->rgRDN;
if(reverse && info->cRDN > 1) rdn += (info->cRDN - 1);
if (dwStrType & CERT_NAME_STR_SEMICOLON_FLAG)
sep = semiSep;
else if (dwStrType & CERT_NAME_STR_CRLF_FLAG)
sep = crlfSep;
else
sep = commaSep;
sepLen = strlen(sep);
if (dwStrType & CERT_NAME_STR_NO_PLUS_FLAG)
rdnSep = spaceSep;
else
rdnSep = plusSep;
rdnSepLen = strlen(rdnSep);
for (i = 0; (!psz || ret < csz) && i < info->cRDN; i++)
{
for (j = 0; (!psz || ret < csz) && j < rdn->cRDNAttr; j++)
{
DWORD chars;
char prefixBuf[13]; /* big enough for SERIALNUMBER */
LPCSTR prefix = NULL;
if ((dwStrType & 0x000000ff) == CERT_OID_NAME_STR)
prefix = rdn->rgRDNAttr[j].pszObjId;
else if ((dwStrType & 0x000000ff) == CERT_X500_NAME_STR)
{
PCCRYPT_OID_INFO oidInfo = CryptFindOIDInfo(
CRYPT_OID_INFO_OID_KEY,
rdn->rgRDNAttr[j].pszObjId,
CRYPT_RDN_ATTR_OID_GROUP_ID);
if (oidInfo)
{
WideCharToMultiByte(CP_ACP, 0, oidInfo->pwszName, -1,
prefixBuf, sizeof(prefixBuf), NULL, NULL);
prefix = prefixBuf;
}
else
prefix = rdn->rgRDNAttr[j].pszObjId;
}
if (prefix)
{
/* - 1 is needed to account for the NULL terminator. */
chars = CRYPT_AddPrefixA(prefix,
psz ? psz + ret : NULL, psz ? csz - ret - 1 : 0);
ret += chars;
}
chars = quote_rdn_value_to_str_a(
rdn->rgRDNAttr[j].dwValueType,
&rdn->rgRDNAttr[j].Value, psz ? psz + ret : NULL,
psz ? csz - ret : 0);
if (chars)
ret += chars - 1;
if (j < rdn->cRDNAttr - 1)
{
if (psz && ret < csz - rdnSepLen - 1)
memcpy(psz + ret, rdnSep, rdnSepLen);
ret += rdnSepLen;
}
}
if (i < info->cRDN - 1)
{
if (psz && ret < csz - sepLen - 1)
memcpy(psz + ret, sep, sepLen);
ret += sepLen;
}
if(reverse) rdn--;
else rdn++;
}
LocalFree(info);
}
if (psz && csz)
{
*(psz + ret) = '\0';
ret++;
}
else
ret++;
TRACE("Returning %s\n", debugstr_a(psz));
return ret;
}
/* Adds the prefix prefix to the wide-character string pointed to by psz,
* followed by the character '='. Copies no more than csz characters. Returns
* the number of characters copied. If psz is NULL, returns the number of
* characters that would be copied.
* Assumes the characters in prefix are ASCII (not multibyte characters.)
*/
static DWORD CRYPT_AddPrefixAToW(LPCSTR prefix, LPWSTR psz, DWORD csz)
{
DWORD chars;
TRACE("(%s, %p, %d)\n", debugstr_a(prefix), psz, csz);
if (psz)
{
DWORD i;
chars = min(strlen(prefix), csz);
for (i = 0; i < chars; i++)
*(psz + i) = prefix[i];
*(psz + chars) = '=';
chars++;
}
else
chars = lstrlenA(prefix) + 1;
return chars;
}
/* Adds the prefix prefix to the string pointed to by psz, followed by the
* character '='. Copies no more than csz characters. Returns the number of
* characters copied. If psz is NULL, returns the number of characters that
* would be copied.
*/
static DWORD CRYPT_AddPrefixW(LPCWSTR prefix, LPWSTR psz, DWORD csz)
{
DWORD chars;
TRACE("(%s, %p, %d)\n", debugstr_w(prefix), psz, csz);
if (psz)
{
chars = min(strlenW(prefix), csz);
memcpy(psz, prefix, chars * sizeof(WCHAR));
*(psz + chars) = '=';
chars++;
}
else
chars = lstrlenW(prefix) + 1;
return chars;
}
static const WCHAR indent[] = { ' ',' ',' ',' ',' ',0 };
DWORD cert_name_to_str_with_indent(DWORD dwCertEncodingType, DWORD indentLevel,
const CERT_NAME_BLOB *pName, DWORD dwStrType, LPWSTR psz, DWORD csz)
{
static const DWORD unsupportedFlags = CERT_NAME_STR_NO_QUOTING_FLAG |
CERT_NAME_STR_ENABLE_T61_UNICODE_FLAG;
static const WCHAR commaSep[] = { ',',' ',0 };
static const WCHAR semiSep[] = { ';',' ',0 };
static const WCHAR crlfSep[] = { '\r','\n',0 };
static const WCHAR plusSep[] = { ' ','+',' ',0 };
static const WCHAR spaceSep[] = { ' ',0 };
DWORD ret = 0, bytes = 0;
BOOL bRet;
CERT_NAME_INFO *info;
if (dwStrType & unsupportedFlags)
FIXME("unsupported flags: %08x\n", dwStrType & unsupportedFlags);
bRet = CryptDecodeObjectEx(dwCertEncodingType, X509_NAME, pName->pbData,
pName->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &bytes);
if (bRet)
{
DWORD i, j, sepLen, rdnSepLen;
LPCWSTR sep, rdnSep;
BOOL reverse = dwStrType & CERT_NAME_STR_REVERSE_FLAG;
const CERT_RDN *rdn = info->rgRDN;
if(reverse && info->cRDN > 1) rdn += (info->cRDN - 1);
if (dwStrType & CERT_NAME_STR_SEMICOLON_FLAG)
sep = semiSep;
else if (dwStrType & CERT_NAME_STR_CRLF_FLAG)
sep = crlfSep;
else
sep = commaSep;
sepLen = lstrlenW(sep);
if (dwStrType & CERT_NAME_STR_NO_PLUS_FLAG)
rdnSep = spaceSep;
else
rdnSep = plusSep;
rdnSepLen = lstrlenW(rdnSep);
for (i = 0; (!psz || ret < csz) && i < info->cRDN; i++)
{
for (j = 0; (!psz || ret < csz) && j < rdn->cRDNAttr; j++)
{
DWORD chars;
LPCSTR prefixA = NULL;
LPCWSTR prefixW = NULL;
if ((dwStrType & 0x000000ff) == CERT_OID_NAME_STR)
prefixA = rdn->rgRDNAttr[j].pszObjId;
else if ((dwStrType & 0x000000ff) == CERT_X500_NAME_STR)
{
PCCRYPT_OID_INFO oidInfo = CryptFindOIDInfo(
CRYPT_OID_INFO_OID_KEY,
rdn->rgRDNAttr[j].pszObjId,
CRYPT_RDN_ATTR_OID_GROUP_ID);
if (oidInfo)
prefixW = oidInfo->pwszName;
else
prefixA = rdn->rgRDNAttr[j].pszObjId;
}
if (dwStrType & CERT_NAME_STR_CRLF_FLAG)
{
DWORD k;
for (k = 0; k < indentLevel; k++)
{
if (psz)
{
chars = min(strlenW(indent), csz - ret - 1);
memcpy(psz + ret, indent, chars * sizeof(WCHAR));
}
else
chars = strlenW(indent);
ret += chars;
}
}
if (prefixW)
{
/* - 1 is needed to account for the NULL terminator. */
chars = CRYPT_AddPrefixW(prefixW,
psz ? psz + ret : NULL, psz ? csz - ret - 1 : 0);
ret += chars;
}
else if (prefixA)
{
/* - 1 is needed to account for the NULL terminator. */
chars = CRYPT_AddPrefixAToW(prefixA,
psz ? psz + ret : NULL, psz ? csz - ret - 1 : 0);
ret += chars;
}
chars = quote_rdn_value_to_str_w(
rdn->rgRDNAttr[j].dwValueType,
&rdn->rgRDNAttr[j].Value, psz ? psz + ret : NULL,
psz ? csz - ret : 0);
if (chars)
ret += chars - 1;
if (j < rdn->cRDNAttr - 1)
{
if (psz && ret < csz - rdnSepLen - 1)
memcpy(psz + ret, rdnSep, rdnSepLen * sizeof(WCHAR));
ret += rdnSepLen;
}
}
if (i < info->cRDN - 1)
{
if (psz && ret < csz - sepLen - 1)
memcpy(psz + ret, sep, sepLen * sizeof(WCHAR));
ret += sepLen;
}
if(reverse) rdn--;
else rdn++;
}
LocalFree(info);
}
if (psz && csz)
{
*(psz + ret) = '\0';
ret++;
}
else
ret++;
return ret;
}
DWORD WINAPI CertNameToStrW(DWORD dwCertEncodingType, PCERT_NAME_BLOB pName,
DWORD dwStrType, LPWSTR psz, DWORD csz)
{
BOOL ret;
TRACE("(%d, %p, %08x, %p, %d)\n", dwCertEncodingType, pName, dwStrType,
psz, csz);
ret = cert_name_to_str_with_indent(dwCertEncodingType, 0, pName, dwStrType,
psz, csz);
TRACE("Returning %s\n", debugstr_w(psz));
return ret;
}
BOOL WINAPI CertStrToNameA(DWORD dwCertEncodingType, LPCSTR pszX500,
DWORD dwStrType, void *pvReserved, BYTE *pbEncoded, DWORD *pcbEncoded,
LPCSTR *ppszError)
{
BOOL ret;
int len;
TRACE("(%08x, %s, %08x, %p, %p, %p, %p)\n", dwCertEncodingType,
debugstr_a(pszX500), dwStrType, pvReserved, pbEncoded, pcbEncoded,
ppszError);
len = MultiByteToWideChar(CP_ACP, 0, pszX500, -1, NULL, 0);
if (len)
{
LPWSTR x500, errorStr;
if ((x500 = CryptMemAlloc(len * sizeof(WCHAR))))
{
MultiByteToWideChar(CP_ACP, 0, pszX500, -1, x500, len);
ret = CertStrToNameW(dwCertEncodingType, x500, dwStrType,
pvReserved, pbEncoded, pcbEncoded,
ppszError ? (LPCWSTR *)&errorStr : NULL);
if (ppszError)
{
if (!ret)
{
LONG i;
*ppszError = pszX500;
for (i = 0; i < errorStr - x500; i++)
*ppszError = CharNextA(*ppszError);
}
else
*ppszError = NULL;
}
CryptMemFree(x500);
}
else
{
SetLastError(ERROR_OUTOFMEMORY);
ret = FALSE;
}
}
else
{
SetLastError(CRYPT_E_INVALID_X500_STRING);
if (ppszError)
*ppszError = pszX500;
ret = FALSE;
}
return ret;
}
struct KeynameKeeper
{
WCHAR buf[10]; /* big enough for L"GivenName" */
LPWSTR keyName; /* usually = buf, but may be allocated */
DWORD keyLen; /* full available buffer size in WCHARs */
};
static void CRYPT_InitializeKeynameKeeper(struct KeynameKeeper *keeper)
{
keeper->keyName = keeper->buf;
keeper->keyLen = ARRAY_SIZE(keeper->buf);
}
static void CRYPT_FreeKeynameKeeper(struct KeynameKeeper *keeper)
{
if (keeper->keyName != keeper->buf)
CryptMemFree(keeper->keyName);
}
struct X500TokenW
{
LPCWSTR start;
LPCWSTR end;
};
static void CRYPT_KeynameKeeperFromTokenW(struct KeynameKeeper *keeper,
const struct X500TokenW *key)
{
DWORD len = key->end - key->start;
if (len >= keeper->keyLen)
{
CRYPT_FreeKeynameKeeper( keeper );
keeper->keyLen = len + 1;
keeper->keyName = CryptMemAlloc(keeper->keyLen * sizeof(WCHAR));
}
memcpy(keeper->keyName, key->start, len * sizeof(WCHAR));
keeper->keyName[len] = '\0';
TRACE("Keyname is %s\n", debugstr_w(keeper->keyName));
}
static BOOL CRYPT_GetNextKeyW(LPCWSTR str, struct X500TokenW *token,
LPCWSTR *ppszError)
{
BOOL ret = TRUE;
while (*str && isspaceW(*str))
str++;
if (*str)
{
token->start = str;
while (*str && *str != '=' && !isspaceW(*str))
str++;
if (*str && (*str == '=' || isspaceW(*str)))
token->end = str;
else
{
TRACE("missing equals char at %s\n", debugstr_w(token->start));
if (ppszError)
*ppszError = token->start;
SetLastError(CRYPT_E_INVALID_X500_STRING);
ret = FALSE;
}
}
else
token->start = NULL;
return ret;
}
/* Assumes separators are characters in the 0-255 range */
static BOOL CRYPT_GetNextValueW(LPCWSTR str, DWORD dwFlags, LPCWSTR separators,
WCHAR *separator_used, struct X500TokenW *token, LPCWSTR *ppszError)
{
BOOL ret = TRUE;
TRACE("(%s, %s, %p, %p)\n", debugstr_w(str), debugstr_w(separators), token,
ppszError);
*separator_used = 0;
while (*str && isspaceW(*str))
str++;
if (*str)
{
token->start = str;
if (!(dwFlags & CERT_NAME_STR_NO_QUOTING_FLAG) && *str == '"')
{
token->end = NULL;
str++;
while (!token->end && ret)
{
while (*str && *str != '"')
str++;
if (*str == '"')
{
if (*(str + 1) != '"')
token->end = str + 1;
else
str += 2;
}
else
{
TRACE("unterminated quote at %s\n", debugstr_w(str));
if (ppszError)
*ppszError = str;
SetLastError(CRYPT_E_INVALID_X500_STRING);
ret = FALSE;
}
}
}
else
{
WCHAR map[256] = { 0 };
while (*separators)
map[*separators++] = 1;
while (*str && (*str >= 0xff || !map[*str]))
str++;
token->end = str;
if (map[*str]) *separator_used = *str;
}
}
else
{
TRACE("missing value at %s\n", debugstr_w(str));
if (ppszError)
*ppszError = str;
SetLastError(CRYPT_E_INVALID_X500_STRING);
ret = FALSE;
}
return ret;
}
/* Encodes the string represented by value as the string type type into the
* CERT_NAME_BLOB output. If there is an error and ppszError is not NULL,
* *ppszError is set to the first failing character. If there is no error,
* output's pbData must be freed with LocalFree.
*/
static BOOL CRYPT_EncodeValueWithType(DWORD dwCertEncodingType,
const struct X500TokenW *value, PCERT_NAME_BLOB output, DWORD type,
LPCWSTR *ppszError)
{
CERT_NAME_VALUE nameValue = { type, { 0, NULL } };
BOOL ret = TRUE;
if (value->end > value->start)
{
LONG i;
LPWSTR ptr;
nameValue.Value.pbData = CryptMemAlloc((value->end - value->start + 1) *
sizeof(WCHAR));
if (!nameValue.Value.pbData)
{
SetLastError(ERROR_OUTOFMEMORY);
return FALSE;
}
ptr = (LPWSTR)nameValue.Value.pbData;
for (i = 0; i < value->end - value->start; i++)
{
*ptr++ = value->start[i];
if (value->start[i] == '"')
i++;
}
/* The string is NULL terminated because of a quirk in encoding
* unicode names values: if the length is given as 0, the value is
* assumed to be a NULL-terminated string.
*/
*ptr = 0;
nameValue.Value.cbData = (LPBYTE)ptr - nameValue.Value.pbData;
}
ret = CryptEncodeObjectEx(dwCertEncodingType, X509_UNICODE_NAME_VALUE,
&nameValue, CRYPT_ENCODE_ALLOC_FLAG, NULL, &output->pbData,
&output->cbData);
if (!ret && ppszError)
{
if (type == CERT_RDN_NUMERIC_STRING &&
GetLastError() == CRYPT_E_INVALID_NUMERIC_STRING)
*ppszError = value->start + output->cbData;
else if (type == CERT_RDN_PRINTABLE_STRING &&
GetLastError() == CRYPT_E_INVALID_PRINTABLE_STRING)
*ppszError = value->start + output->cbData;
else if (type == CERT_RDN_IA5_STRING &&
GetLastError() == CRYPT_E_INVALID_IA5_STRING)
*ppszError = value->start + output->cbData;
}
CryptMemFree(nameValue.Value.pbData);
return ret;
}
static BOOL CRYPT_EncodeValue(DWORD dwCertEncodingType,
const struct X500TokenW *value, PCERT_NAME_BLOB output, const DWORD *types,
LPCWSTR *ppszError)
{
DWORD i;
BOOL ret;
ret = FALSE;
for (i = 0; !ret && types[i]; i++)
ret = CRYPT_EncodeValueWithType(dwCertEncodingType, value, output,
types[i], ppszError);
return ret;
}
static BOOL CRYPT_ValueToRDN(DWORD dwCertEncodingType, PCERT_NAME_INFO info,
PCCRYPT_OID_INFO keyOID, struct X500TokenW *value, DWORD dwStrType, LPCWSTR *ppszError)
{
BOOL ret = FALSE;
TRACE("OID %s, value %s\n", debugstr_a(keyOID->pszOID),
debugstr_wn(value->start, value->end - value->start));
if (!info->rgRDN)
info->rgRDN = CryptMemAlloc(sizeof(CERT_RDN));
else
info->rgRDN = CryptMemRealloc(info->rgRDN,
(info->cRDN + 1) * sizeof(CERT_RDN));
if (info->rgRDN)
{
/* FIXME: support multiple RDN attrs */
info->rgRDN[info->cRDN].rgRDNAttr =
CryptMemAlloc(sizeof(CERT_RDN_ATTR));
if (info->rgRDN[info->cRDN].rgRDNAttr)
{
static const DWORD defaultTypes[] = { CERT_RDN_PRINTABLE_STRING,
CERT_RDN_BMP_STRING, 0 };
const DWORD *types;
info->rgRDN[info->cRDN].cRDNAttr = 1;
info->rgRDN[info->cRDN].rgRDNAttr[0].pszObjId =
(LPSTR)keyOID->pszOID;
info->rgRDN[info->cRDN].rgRDNAttr[0].dwValueType =
CERT_RDN_ENCODED_BLOB;
if (keyOID->ExtraInfo.cbData)
types = (const DWORD *)keyOID->ExtraInfo.pbData;
else
types = defaultTypes;
/* Remove surrounding quotes */
if (value->start[0] == '"' && !(dwStrType & CERT_NAME_STR_NO_QUOTING_FLAG))
{
value->start++;
value->end--;
}
ret = CRYPT_EncodeValue(dwCertEncodingType, value,
&info->rgRDN[info->cRDN].rgRDNAttr[0].Value, types, ppszError);
}
else
SetLastError(ERROR_OUTOFMEMORY);
info->cRDN++;
}
else
SetLastError(ERROR_OUTOFMEMORY);
return ret;
}
BOOL WINAPI CertStrToNameW(DWORD dwCertEncodingType, LPCWSTR pszX500,
DWORD dwStrType, void *pvReserved, BYTE *pbEncoded, DWORD *pcbEncoded,
LPCWSTR *ppszError)
{
CERT_NAME_INFO info = { 0, NULL };
LPCWSTR str;
struct KeynameKeeper keeper;
DWORD i;
BOOL ret = TRUE;
TRACE("(%08x, %s, %08x, %p, %p, %p, %p)\n", dwCertEncodingType,
debugstr_w(pszX500), dwStrType, pvReserved, pbEncoded, pcbEncoded,
ppszError);
CRYPT_InitializeKeynameKeeper(&keeper);
str = pszX500;
while (str && *str && ret)
{
struct X500TokenW token;
ret = CRYPT_GetNextKeyW(str, &token, ppszError);
if (ret && token.start)
{
PCCRYPT_OID_INFO keyOID;
CRYPT_KeynameKeeperFromTokenW(&keeper, &token);
keyOID = CryptFindOIDInfo(CRYPT_OID_INFO_NAME_KEY, keeper.keyName,
CRYPT_RDN_ATTR_OID_GROUP_ID);
if (!keyOID)
{
if (ppszError)
*ppszError = token.start;
SetLastError(CRYPT_E_INVALID_X500_STRING);
ret = FALSE;
}
else
{
str = token.end;
while (isspaceW(*str))
str++;
if (*str != '=')
{
if (ppszError)
*ppszError = str;
SetLastError(CRYPT_E_INVALID_X500_STRING);
ret = FALSE;
}
else
{
static const WCHAR commaSep[] = { ',',0 };
static const WCHAR semiSep[] = { ';',0 };
static const WCHAR crlfSep[] = { '\r','\n',0 };
static const WCHAR allSepsWithoutPlus[] = { ',',';','\r','\n',0 };
static const WCHAR allSeps[] = { '+',',',';','\r','\n',0 };
LPCWSTR sep;
WCHAR sep_used;
str++;
if (dwStrType & CERT_NAME_STR_COMMA_FLAG)
sep = commaSep;
else if (dwStrType & CERT_NAME_STR_SEMICOLON_FLAG)
sep = semiSep;
else if (dwStrType & CERT_NAME_STR_CRLF_FLAG)
sep = crlfSep;
else if (dwStrType & CERT_NAME_STR_NO_PLUS_FLAG)
sep = allSepsWithoutPlus;
else
sep = allSeps;
ret = CRYPT_GetNextValueW(str, dwStrType, sep, &sep_used, &token,
ppszError);
if (ret)
{
str = token.end;
/* if token.end points to the separator, skip it */
if (str && sep_used && *str == sep_used) str++;
ret = CRYPT_ValueToRDN(dwCertEncodingType, &info,
keyOID, &token, dwStrType, ppszError);
}
}
}
}
}
CRYPT_FreeKeynameKeeper(&keeper);
if (ret)
{
if (ppszError)
*ppszError = NULL;
ret = CryptEncodeObjectEx(dwCertEncodingType, X509_NAME, &info,
0, NULL, pbEncoded, pcbEncoded);
}
for (i = 0; i < info.cRDN; i++)
{
DWORD j;
for (j = 0; j < info.rgRDN[i].cRDNAttr; j++)
LocalFree(info.rgRDN[i].rgRDNAttr[j].Value.pbData);
CryptMemFree(info.rgRDN[i].rgRDNAttr);
}
CryptMemFree(info.rgRDN);
return ret;
}
DWORD WINAPI CertGetNameStringA(PCCERT_CONTEXT pCertContext, DWORD dwType,
DWORD dwFlags, void *pvTypePara, LPSTR pszNameString, DWORD cchNameString)
{
DWORD ret;
TRACE("(%p, %d, %08x, %p, %p, %d)\n", pCertContext, dwType, dwFlags,
pvTypePara, pszNameString, cchNameString);
if (pszNameString)
{
LPWSTR wideName;
DWORD nameLen;
nameLen = CertGetNameStringW(pCertContext, dwType, dwFlags, pvTypePara,
NULL, 0);
wideName = CryptMemAlloc(nameLen * sizeof(WCHAR));
if (wideName)
{
CertGetNameStringW(pCertContext, dwType, dwFlags, pvTypePara,
wideName, nameLen);
nameLen = WideCharToMultiByte(CP_ACP, 0, wideName, nameLen,
pszNameString, cchNameString, NULL, NULL);
if (nameLen <= cchNameString)
ret = nameLen;
else
{
pszNameString[cchNameString - 1] = '\0';
ret = cchNameString;
}
CryptMemFree(wideName);
}
else
{
*pszNameString = '\0';
ret = 1;
}
}
else
ret = CertGetNameStringW(pCertContext, dwType, dwFlags, pvTypePara,
NULL, 0);
return ret;
}
/* Searches cert's extensions for the alternate name extension with OID
* altNameOID, and if found, searches it for the alternate name type entryType.
* If found, returns a pointer to the entry, otherwise returns NULL.
* Regardless of whether an entry of the desired type is found, if the
* alternate name extension is present, sets *info to the decoded alternate
* name extension, which you must free using LocalFree.
* The return value is a pointer within *info, so don't free *info before
* you're done with the return value.
*/
static PCERT_ALT_NAME_ENTRY cert_find_alt_name_entry(PCCERT_CONTEXT cert,
LPCSTR altNameOID, DWORD entryType, PCERT_ALT_NAME_INFO *info)
{
PCERT_ALT_NAME_ENTRY entry = NULL;
PCERT_EXTENSION ext = CertFindExtension(altNameOID,
cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension);
if (ext)
{
DWORD bytes = 0;
if (CryptDecodeObjectEx(cert->dwCertEncodingType, X509_ALTERNATE_NAME,
ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL,
info, &bytes))
{
DWORD i;
for (i = 0; !entry && i < (*info)->cAltEntry; i++)
if ((*info)->rgAltEntry[i].dwAltNameChoice == entryType)
entry = &(*info)->rgAltEntry[i];
}
}
else
*info = NULL;
return entry;
}
static DWORD cert_get_name_from_rdn_attr(DWORD encodingType,
const CERT_NAME_BLOB *name, LPCSTR oid, LPWSTR pszNameString, DWORD cchNameString)
{
CERT_NAME_INFO *nameInfo;
DWORD bytes = 0, ret = 0;
if (CryptDecodeObjectEx(encodingType, X509_NAME, name->pbData,
name->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &nameInfo, &bytes))
{
PCERT_RDN_ATTR nameAttr;
if (!oid)
oid = szOID_RSA_emailAddr;
nameAttr = CertFindRDNAttr(oid, nameInfo);
if (nameAttr)
ret = CertRDNValueToStrW(nameAttr->dwValueType, &nameAttr->Value,
pszNameString, cchNameString);
LocalFree(nameInfo);
}
return ret;
}
DWORD WINAPI CertGetNameStringW(PCCERT_CONTEXT pCertContext, DWORD dwType,
DWORD dwFlags, void *pvTypePara, LPWSTR pszNameString, DWORD cchNameString)
{
DWORD ret = 0;
PCERT_NAME_BLOB name;
LPCSTR altNameOID;
TRACE("(%p, %d, %08x, %p, %p, %d)\n", pCertContext, dwType,
dwFlags, pvTypePara, pszNameString, cchNameString);
if (!pCertContext)
goto done;
if (dwFlags & CERT_NAME_ISSUER_FLAG)
{
name = &pCertContext->pCertInfo->Issuer;
altNameOID = szOID_ISSUER_ALT_NAME;
}
else
{
name = &pCertContext->pCertInfo->Subject;
altNameOID = szOID_SUBJECT_ALT_NAME;
}
switch (dwType)
{
case CERT_NAME_EMAIL_TYPE:
{
CERT_ALT_NAME_INFO *info;
PCERT_ALT_NAME_ENTRY entry = cert_find_alt_name_entry(pCertContext,
altNameOID, CERT_ALT_NAME_RFC822_NAME, &info);
if (entry)
{
if (!pszNameString)
ret = strlenW(entry->u.pwszRfc822Name) + 1;
else if (cchNameString)
{
ret = min(strlenW(entry->u.pwszRfc822Name), cchNameString - 1);
memcpy(pszNameString, entry->u.pwszRfc822Name,
ret * sizeof(WCHAR));
pszNameString[ret++] = 0;
}
}
if (info)
LocalFree(info);
if (!ret)
ret = cert_get_name_from_rdn_attr(pCertContext->dwCertEncodingType,
name, szOID_RSA_emailAddr, pszNameString, cchNameString);
break;
}
case CERT_NAME_RDN_TYPE:
{
DWORD type = pvTypePara ? *(DWORD *)pvTypePara : 0;
if (name->cbData)
ret = CertNameToStrW(pCertContext->dwCertEncodingType, name,
type, pszNameString, cchNameString);
else
{
CERT_ALT_NAME_INFO *info;
PCERT_ALT_NAME_ENTRY entry = cert_find_alt_name_entry(pCertContext,
altNameOID, CERT_ALT_NAME_DIRECTORY_NAME, &info);
if (entry)
ret = CertNameToStrW(pCertContext->dwCertEncodingType,
&entry->u.DirectoryName, type, pszNameString, cchNameString);
if (info)
LocalFree(info);
}
break;
}
case CERT_NAME_ATTR_TYPE:
ret = cert_get_name_from_rdn_attr(pCertContext->dwCertEncodingType,
name, pvTypePara, pszNameString, cchNameString);
if (!ret)
{
CERT_ALT_NAME_INFO *altInfo;
PCERT_ALT_NAME_ENTRY entry = cert_find_alt_name_entry(pCertContext,
altNameOID, CERT_ALT_NAME_DIRECTORY_NAME, &altInfo);
if (entry)
ret = cert_name_to_str_with_indent(X509_ASN_ENCODING, 0,
&entry->u.DirectoryName, 0, pszNameString, cchNameString);
if (altInfo)
LocalFree(altInfo);
}
break;
case CERT_NAME_SIMPLE_DISPLAY_TYPE:
{
static const LPCSTR simpleAttributeOIDs[] = { szOID_COMMON_NAME,
szOID_ORGANIZATIONAL_UNIT_NAME, szOID_ORGANIZATION_NAME,
szOID_RSA_emailAddr };
CERT_NAME_INFO *nameInfo = NULL;
DWORD bytes = 0, i;
if (CryptDecodeObjectEx(pCertContext->dwCertEncodingType, X509_NAME,
name->pbData, name->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &nameInfo,
&bytes))
{
PCERT_RDN_ATTR nameAttr = NULL;
for (i = 0; !nameAttr && i < ARRAY_SIZE(simpleAttributeOIDs); i++)
nameAttr = CertFindRDNAttr(simpleAttributeOIDs[i], nameInfo);
if (nameAttr)
ret = CertRDNValueToStrW(nameAttr->dwValueType,
&nameAttr->Value, pszNameString, cchNameString);
LocalFree(nameInfo);
}
if (!ret)
{
CERT_ALT_NAME_INFO *altInfo;
PCERT_ALT_NAME_ENTRY entry = cert_find_alt_name_entry(pCertContext,
altNameOID, CERT_ALT_NAME_RFC822_NAME, &altInfo);
if (altInfo)
{
if (!entry && altInfo->cAltEntry)
entry = &altInfo->rgAltEntry[0];
if (entry)
{
if (!pszNameString)
ret = strlenW(entry->u.pwszRfc822Name) + 1;
else if (cchNameString)
{
ret = min(strlenW(entry->u.pwszRfc822Name),
cchNameString - 1);
memcpy(pszNameString, entry->u.pwszRfc822Name,
ret * sizeof(WCHAR));
pszNameString[ret++] = 0;
}
}
LocalFree(altInfo);
}
}
break;
}
case CERT_NAME_FRIENDLY_DISPLAY_TYPE:
{
DWORD cch = cchNameString;
if (CertGetCertificateContextProperty(pCertContext,
CERT_FRIENDLY_NAME_PROP_ID, pszNameString, &cch))
ret = cch;
else
ret = CertGetNameStringW(pCertContext,
CERT_NAME_SIMPLE_DISPLAY_TYPE, dwFlags, pvTypePara, pszNameString,
cchNameString);
break;
}
case CERT_NAME_DNS_TYPE:
{
CERT_ALT_NAME_INFO *info;
PCERT_ALT_NAME_ENTRY entry = cert_find_alt_name_entry(pCertContext,
altNameOID, CERT_ALT_NAME_DNS_NAME, &info);
if (entry)
{
if (!pszNameString)
ret = strlenW(entry->u.pwszDNSName) + 1;
else if (cchNameString)
{
ret = min(strlenW(entry->u.pwszDNSName), cchNameString - 1);
memcpy(pszNameString, entry->u.pwszDNSName, ret * sizeof(WCHAR));
pszNameString[ret++] = 0;
}
}
if (info)
LocalFree(info);
if (!ret)
ret = cert_get_name_from_rdn_attr(pCertContext->dwCertEncodingType,
name, szOID_COMMON_NAME, pszNameString, cchNameString);
break;
}
case CERT_NAME_URL_TYPE:
{
CERT_ALT_NAME_INFO *info;
PCERT_ALT_NAME_ENTRY entry = cert_find_alt_name_entry(pCertContext,
altNameOID, CERT_ALT_NAME_URL, &info);
if (entry)
{
if (!pszNameString)
ret = strlenW(entry->u.pwszURL) + 1;
else if (cchNameString)
{
ret = min(strlenW(entry->u.pwszURL), cchNameString - 1);
memcpy(pszNameString, entry->u.pwszURL, ret * sizeof(WCHAR));
pszNameString[ret++] = 0;
}
}
if (info)
LocalFree(info);
break;
}
default:
FIXME("unimplemented for type %d\n", dwType);
ret = 0;
}
done:
if (!ret)
{
if (!pszNameString)
ret = 1;
else if (cchNameString)
{
pszNameString[0] = 0;
ret = 1;
}
}
return ret;
}
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