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/*****************************************************************************
* Copyright 2005 Alt-N Technologies, Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* This code incorporates intellectual property owned by Yahoo! and licensed
* pursuant to the Yahoo! DomainKeys Patent License Agreement.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Changes done by ¢feh@fehcom.de obeying the above license
*
*****************************************************************************/
#include "dkim.h"
#include <string.h>
#include "dkimsign.h"
#include "dkimverify.h"
#define DKIMID ('D' | 'K' << 8 | 'I' << 16 | 'M' << 24)
/* taken from removed file "ressource.h" */
#ifdef VERSION
#define VERSION_STRING VERSION
#else
#define VERSION_STRING "1.4.0"
#endif
static void InitContext(DKIMContext *pContext, bool bSign, void *pObject)
{
pContext->reserved1 = DKIMID;
pContext->reserved2 = bSign ? 1 : 0;
pContext->reserved3 = pObject;
}
static void *ValidateContext(DKIMContext *pContext, bool bSign)
{
if (pContext->reserved1 != DKIMID) return NULL;
if (pContext->reserved2 != (unsigned int)(bSign ? 1 : 0)) return NULL;
return pContext->reserved3;
}
int DKIM_CALL DKIMSignInit(DKIMContext *pSignContext, DKIMSignOptions *pOptions)
{
int nRet = DKIM_OUT_OF_MEMORY;
CDKIMSign *pSign = new CDKIMSign;
if (pSign) {
nRet = pSign->Init(pOptions);
if (nRet != DKIM_SUCCESS) delete pSign;
}
if (nRet == DKIM_SUCCESS) InitContext(pSignContext, true, pSign);
return nRet;
}
int DKIM_CALL DKIMSignProcess(DKIMContext *pSignContext, char *szBuffer, int nBufLength)
{
CDKIMSign *pSign = (CDKIMSign *)ValidateContext(pSignContext, true);
if (pSign) return pSign->Process(szBuffer, nBufLength, false);
return DKIM_INVALID_CONTEXT;
}
int DKIM_CALL DKIMSignGetSig2(
DKIMContext *pSignContext, char *szRSAPrivKey, char *szECCPrivKey, char **pszSignature)
{
CDKIMSign *pSign = (CDKIMSign *)ValidateContext(pSignContext, true);
if (pSign) return pSign->GetSig2(szRSAPrivKey, szECCPrivKey, pszSignature);
return DKIM_INVALID_CONTEXT;
}
void DKIM_CALL DKIMSignFree(DKIMContext *pSignContext)
{
CDKIMSign *pSign = (CDKIMSign *)ValidateContext(pSignContext, true);
if (pSign) {
delete pSign;
pSignContext->reserved3 = NULL;
}
}
int DKIM_CALL DKIMVerifyInit(DKIMContext *pVerifyContext, DKIMVerifyOptions *pOptions)
{
int nRet = DKIM_OUT_OF_MEMORY;
CDKIMVerify *pVerify = new CDKIMVerify;
if (pVerify) {
nRet = pVerify->Init(pOptions);
if (nRet != DKIM_SUCCESS) delete pVerify;
}
if (nRet == DKIM_SUCCESS) InitContext(pVerifyContext, false, pVerify);
return nRet;
}
int DKIM_CALL DKIMVerifyProcess(DKIMContext *pVerifyContext, const char *const szBuffer, int nBufLength)
{
CDKIMVerify *pVerify = (CDKIMVerify *)ValidateContext(pVerifyContext, false);
if (pVerify) return pVerify->Process(szBuffer, nBufLength, false);
return DKIM_INVALID_CONTEXT;
}
int DKIM_CALL DKIMVerifyResults(DKIMContext *pVerifyContext)
{
CDKIMVerify *pVerify = (CDKIMVerify *)ValidateContext(pVerifyContext, false);
if (pVerify) return pVerify->GetResults();
return DKIM_INVALID_CONTEXT;
}
int DKIM_CALL DKIMVerifyGetDetails(
DKIMContext *pVerifyContext, int *nSigCount, DKIMVerifyDetails **pDetails, char *szPractices)
{
szPractices[0] = '\0';
CDKIMVerify *pVerify = (CDKIMVerify *)ValidateContext(pVerifyContext, false);
if (pVerify) {
strcpy(szPractices, pVerify->GetPractices());
return pVerify->GetDetails(nSigCount, pDetails);
}
return DKIM_INVALID_CONTEXT;
}
void DKIM_CALL DKIMVerifyFree(DKIMContext *pVerifyContext)
{
CDKIMVerify *pVerify = (CDKIMVerify *)ValidateContext(pVerifyContext, false);
if (pVerify) {
delete pVerify;
pVerifyContext->reserved3 = NULL;
}
}
const char *DKIM_CALL DKIMVersion()
{
return VERSION_STRING;
}
static const char *DKIMErrorStrings[-1 - DKIM_MAX_ERROR] = {
"DKIM_FAIL",
"DKIM_BAD_SYNTAX",
"DKIM_SIGNATURE_BAD",
"DKIM_SIGNATURE_BAD_BUT_TESTING",
"DKIM_SIGNATURE_EXPIRED",
"DKIM_SELECTOR_INVALID",
"DKIM_SELECTOR_GRANULARITY_MISMATCH",
"DKIM_SELECTOR_KEY_REVOKED",
"DKIM_SELECTOR_DOMAIN_NAME_TOO_LONG",
"DKIM_SELECTOR_DNS_TEMP_FAILURE",
"DKIM_SELECTOR_DNS_PERM_FAILURE",
"DKIM_SELECTOR_PUBLIC_KEY_INVALID",
"DKIM_NO_SIGNATURES",
"DKIM_NO_VALID_SIGNATURES",
"DKIM_BODY_HASH_MISMATCH",
"DKIM_SELECTOR_ALGORITHM_MISMATCH",
"DKIM_STAT_INCOMPAT",
"DKIM_UNSIGNED_FROM",
"DKIM_OUT_OF_MEMORY",
"DKIM_INVALID_CONTEXT",
"DKIM_NO_SENDER",
"DKIM_BAD_PRIVATE_KEY",
"DKIM_BUFFER_TOO_SMALL",
};
const char *DKIM_CALL DKIMGetErrorString(int ErrorCode)
{
if (ErrorCode >= 0 || ErrorCode <= DKIM_MAX_ERROR)
return "Unknown";
else
return DKIMErrorStrings[-1 - ErrorCode];
}
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