1 files changed, 197 insertions, 0 deletions
diff --git a/src/dkim.cpp b/src/dkim.cpp
new file mode 100644
index 0000000..8f36644
--- /dev/null
+++ b/src/dkim.cpp
@@ -0,0 +1,197 @@
+/*****************************************************************************
+*  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 <string.h>
+#include "dkim.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];
+}