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SMAILSvr.cpp
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/*
* XMail by Davide Libenzi (Intranet and Internet mail server)
* Copyright (C) 1999,..,2010 Davide Libenzi
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Davide Libenzi <[email protected]>
*
*/
#include "SysInclude.h"
#include "SysDep.h"
#include "SvrDefines.h"
#include "SList.h"
#include "ShBlocks.h"
#include "StrUtils.h"
#include "BuffSock.h"
#include "MiscUtils.h"
#include "ResLocks.h"
#include "BuffSock.h"
#include "SvrUtils.h"
#include "UsrUtils.h"
#include "MessQueue.h"
#include "SMAILUtils.h"
#include "QueueUtils.h"
#include "MailDomains.h"
#include "AliasDomain.h"
#include "SMTPUtils.h"
#include "ExtAliases.h"
#include "UsrMailList.h"
#include "Filter.h"
#include "DNS.h"
#include "MailConfig.h"
#include "SMAILSvr.h"
#include "AppDefines.h"
#include "MailSvr.h"
#define SMAIL_WAITMSG_TIMEOUT 2000
#define CUSTOM_PROC_LINE_MAX 1024
#define SMAIL_EXTERNAL_EXIT_BREAK 16
#define SMAIL_STOP_PROCESSING 3111965L
struct MacroSubstCtx {
SPLF_HANDLE hFSpool;
FileSection FSect;
};
static int SMAILThreadCountAdd(long lCount, SHB_HANDLE hShbSMAIL, SMAILConfig *pSMAILCfg = NULL);
static int SMAILLogEnabled(SHB_HANDLE hShbSMAIL, SMAILConfig *pSMAILCfg = NULL);
static SMAILConfig *SMAILGetConfigCopy(SHB_HANDLE hShbSMAIL)
{
SMAILConfig *pLMAILCfg = (SMAILConfig *) ShbLock(hShbSMAIL);
if (pLMAILCfg == NULL)
return NULL;
SMAILConfig *pNewLMAILCfg = (SMAILConfig *) SysAlloc(sizeof(SMAILConfig));
if (pNewLMAILCfg != NULL)
memcpy(pNewLMAILCfg, pLMAILCfg, sizeof(SMAILConfig));
ShbUnlock(hShbSMAIL);
return pNewLMAILCfg;
}
static int SMAILThreadCountAdd(long lCount, SHB_HANDLE hShbSMAIL, SMAILConfig *pSMAILCfg = NULL)
{
int iDoUnlock = 0;
if (pSMAILCfg == NULL) {
if ((pSMAILCfg = (SMAILConfig *) ShbLock(hShbSMAIL)) == NULL)
return ErrGetErrorCode();
++iDoUnlock;
}
pSMAILCfg->lThreadCount += lCount;
if (iDoUnlock)
ShbUnlock(hShbSMAIL);
return 0;
}
static int SMAILLogEnabled(SHB_HANDLE hShbSMAIL, SMAILConfig *pSMAILCfg = NULL)
{
int iDoUnlock = 0;
if (pSMAILCfg == NULL) {
if ((pSMAILCfg = (SMAILConfig *) ShbLock(hShbSMAIL)) == NULL)
return ErrGetErrorCode();
++iDoUnlock;
}
unsigned long ulFlags = pSMAILCfg->ulFlags;
if (iDoUnlock)
ShbUnlock(hShbSMAIL);
return (ulFlags & SMAILF_LOG_ENABLED) ? 1: 0;
}
static int SMAILHandleResendNotify(SVRCFG_HANDLE hSvrConfig, QUEUE_HANDLE hQueue,
QMSG_HANDLE hMessage, SPLF_HANDLE hFSpool)
{
/* Check if it's time to notify about a failed delivery attempt */
int iRetryCount = QueGetTryCount(hMessage);
char szNotifyPattern[128];
SvrConfigVar("NotifyTryPattern", szNotifyPattern, sizeof(szNotifyPattern) - 1,
hSvrConfig, "");
for (char *pszTry = szNotifyPattern; pszTry != NULL; ++pszTry) {
if (isdigit(*pszTry) && atoi(pszTry) == iRetryCount)
break;
if ((pszTry = strchr(pszTry, ',')) == NULL)
return 0;
}
/* Build the notification text and send the message */
time_t tLastTry = QueGetLastTryTime(hMessage);
time_t tNextTry = QueGetMessageNextOp(hQueue, hMessage);
char szTimeLast[128];
char szTimeNext[128];
MscGetTimeStr(szTimeLast, sizeof(szTimeLast) - 1, tLastTry);
MscGetTimeStr(szTimeNext, sizeof(szTimeNext) - 1, tNextTry);
char *pszText =
StrSprint("** This is a temporary error and you do not have to resend the message\r\n"
"** The system tried to send the message at : %s\r\n"
"** The current number of delivery attempts is : %d\r\n"
"** The system will try to resend the message at : %s\r\n",
szTimeLast, iRetryCount, szTimeNext);
if (pszText == NULL)
return ErrGetErrorCode();
int iNotifyResult = QueUtNotifyTempErrDelivery(hQueue, hMessage, hFSpool,
NULL, pszText, NULL);
SysFree(pszText);
return iNotifyResult;
}
static int SMAILMailingListExplode(UserInfo *pUI, SPLF_HANDLE hFSpool)
{
char const *const *ppszFrom = USmlGetMailFrom(hFSpool);
char const *const *ppszRcpt = USmlGetRcptTo(hFSpool);
char szDestUser[MAX_ADDR_NAME];
char szDestDomain[MAX_ADDR_NAME];
if (USmtpSplitEmailAddr(ppszRcpt[0], szDestUser, szDestDomain) < 0)
return ErrGetErrorCode();
/* Get Mailing List Sender address. If this account variable does not exist */
/* the sender will be the "real" message sender */
char *pszMLSender = UsrGetUserInfoVar(pUI, "ListSender");
/* Check if the use of the Reply-To: is requested */
int iUseReplyTo = UsrGetUserInfoVarInt(pUI, "UseReplyTo", 1);
USRML_HANDLE hUsersDB = UsrMLOpenDB(pUI);
if (hUsersDB == INVALID_USRML_HANDLE) {
ErrorPush();
SysFree(pszMLSender);
return ErrorPop();
}
/* Mailing list scan */
MLUserInfo *pMLUI = UsrMLGetFirstUser(hUsersDB);
for (; pMLUI != NULL; pMLUI = UsrMLGetNextUser(hUsersDB)) {
if (strchr(pMLUI->pszPerms, 'R') != NULL) {
/* Get message handle */
QMSG_HANDLE hMessage = QueCreateMessage(hSpoolQueue);
if (hMessage == INVALID_QMSG_HANDLE) {
ErrorPush();
SysFree(pszMLSender);
UsrMLFreeUser(pMLUI);
UsrMLCloseDB(hUsersDB);
return ErrorPop();
}
char szQueueFilePath[SYS_MAX_PATH];
QueGetFilePath(hSpoolQueue, hMessage, szQueueFilePath);
/* Create spool file. If "pszMLSender" is NULL the original sender is kept */
if (USmlCreateSpoolFile(hFSpool, pszMLSender, pMLUI->pszAddress,
szQueueFilePath, (iUseReplyTo != 0) ? "Reply-To" : "",
ppszRcpt[0], NULL) < 0) {
ErrorPush();
QueCleanupMessage(hSpoolQueue, hMessage);
QueCloseMessage(hSpoolQueue, hMessage);
SysFree(pszMLSender);
UsrMLFreeUser(pMLUI);
UsrMLCloseDB(hUsersDB);
return ErrorPop();
}
/* Transfer file to the spool */
if (QueCommitMessage(hSpoolQueue, hMessage) < 0) {
ErrorPush();
QueCleanupMessage(hSpoolQueue, hMessage);
QueCloseMessage(hSpoolQueue, hMessage);
SysFree(pszMLSender);
UsrMLFreeUser(pMLUI);
UsrMLCloseDB(hUsersDB);
return ErrorPop();
}
}
UsrMLFreeUser(pMLUI);
}
UsrMLCloseDB(hUsersDB);
SysFree(pszMLSender);
return 0;
}
static int SMAILRemoteMsgSMTPSend(SVRCFG_HANDLE hSvrConfig, SHB_HANDLE hShbSMAIL,
SPLF_HANDLE hFSpool, QUEUE_HANDLE hQueue, QMSG_HANDLE hMessage,
char const *pszDestDomain, SMTPError *pSMTPE)
{
/* Apply filters ... */
if (FilFilterMessage(hFSpool, hQueue, hMessage, FILTER_MODE_OUTBOUND, NULL) < 0)
return ErrGetErrorCode();
int iError;
char const *pszSMTPDomain = USmlGetSMTPDomain(hFSpool);
char const *pszSmtpMessageID = USmlGetSmtpMessageID(hFSpool);
char const *pszSpoolFile = USmlGetSpoolFile(hFSpool);
char const *pszSpoolFilePath = USmlGetSpoolFilePath(hFSpool);
char const *pszMailFrom = USmlMailFrom(hFSpool);
char const *pszSendMailFrom = USmlSendMailFrom(hFSpool);
char const *pszRcptTo = USmlRcptTo(hFSpool);
char const *pszSendRcptTo = USmlSendRcptTo(hFSpool);
char const *pszRelayDomain = USmlGetRelayDomain(hFSpool);
FileSection FSect;
/* This function retrieve the spool file message section and sync the content. */
/* This is necessary before sending the file */
if (USmlGetMsgFileSection(hFSpool, FSect) < 0)
return ErrGetErrorCode();
/* Get HELO domain */
char szHeloDomain[MAX_HOST_NAME];
SvrConfigVar("HeloDomain", szHeloDomain, sizeof(szHeloDomain) - 1, hSvrConfig, "");
char const *pszHeloDomain = IsEmptyString(szHeloDomain) ? NULL: szHeloDomain;
#if 1
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send: DEST = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
pszDestDomain, pszSMTPDomain, pszMailFrom, pszRcptTo);
#endif
#if 0
ErrSetErrorCode(ERR_BAD_SERVER_ADDR);
return ErrGetErrorCode();
#endif
/* If it's a relayed message use the associated relay */
if (pszRelayDomain != NULL) {
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send DEST = \"%s\" CMX = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
pszDestDomain, pszRelayDomain, pszSMTPDomain, pszMailFrom, pszRcptTo);
USmtpCleanupError(pSMTPE);
if (USmtpMailRmtDeliver(hSvrConfig, pszRelayDomain, pszHeloDomain, pszSendMailFrom,
pszSendRcptTo, &FSect, pSMTPE) < 0) {
ErrorPush();
char szSmtpError[512];
USmtpGetSMTPError(pSMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send CMX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", pszRelayDomain, pszSMTPDomain, pszMailFrom,
pszRcptTo, SMTP_ERROR_VARNAME, szSmtpError,
SMTP_SERVER_VARNAME, USmtpGetErrorServer(pSMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send CMX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", pszRelayDomain, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
return ErrorPop();
}
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(pSMTPE), szRmtMsgID,
sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "SMTP", szRmtMsgID, pszRelayDomain);
}
return 0;
}
/* Check the existance of direct SMTP forwarders */
SMTPGateway **ppszFwdGws = USmtpGetFwdGateways(hSvrConfig, pszDestDomain);
if (ppszFwdGws != NULL) {
/*
* By initializing this to zero makes XMail to discharge all mail
* for domains that have an empty forwarders list
*/
iError = 0;
for (int i = 0; ppszFwdGws[i] != NULL; i++) {
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send DEST = \"%s\" FWD = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
pszDestDomain, ppszFwdGws[i]->pszHost, pszSMTPDomain, pszMailFrom, pszRcptTo);
USmtpCleanupError(pSMTPE);
if ((iError = USmtpSendMail(ppszFwdGws[i], pszHeloDomain, pszSendMailFrom,
pszSendRcptTo, &FSect, pSMTPE)) == 0) {
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(pSMTPE), szRmtMsgID,
sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "FWD", szRmtMsgID, ppszFwdGws[i]->pszHost);
}
break;
}
char szSmtpError[512];
USmtpGetSMTPError(pSMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send FWD = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", ppszFwdGws[i]->pszHost, pszSMTPDomain, pszMailFrom,
pszRcptTo, SMTP_ERROR_VARNAME, szSmtpError,
SMTP_SERVER_VARNAME, USmtpGetErrorServer(pSMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send FWD = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", ppszFwdGws[i]->pszHost, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
if (USmtpIsFatalError(pSMTPE))
break;
}
USmtpFreeGateways(ppszFwdGws);
return iError;
}
/* Try to get custom mail exchangers or DNS mail exchangers and if both tests */
/* fails try direct */
SMTPGateway **ppMXGWs = USmtpGetMailExchangers(hSvrConfig, pszDestDomain);
if (ppMXGWs == NULL) {
/* If the destination domain is an IP-domain do direct deliver */
char szIP[64];
if (MscIsIPDomain(pszDestDomain, szIP, sizeof(szIP))) {
SysLogMessage(LOG_LEV_MESSAGE, "Direct IP delivery for \"%s\".\n", szIP);
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send DEST = \"%s\" IP = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
pszDestDomain, szIP, pszSMTPDomain, pszMailFrom, pszRcptTo);
USmtpCleanupError(pSMTPE);
if (USmtpMailRmtDeliver(hSvrConfig, szIP, pszHeloDomain, pszSendMailFrom, pszSendRcptTo,
&FSect, pSMTPE) < 0) {
ErrorPush();
char szSmtpError[512];
USmtpGetSMTPError(pSMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send IP = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", szIP, pszSMTPDomain, pszMailFrom,
pszRcptTo, SMTP_ERROR_VARNAME, szSmtpError,
SMTP_SERVER_VARNAME, USmtpGetErrorServer(pSMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send IP = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", szIP, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
return ErrorPop();
}
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(pSMTPE), szRmtMsgID,
sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "SMTP", szRmtMsgID, szIP);
}
return 0;
}
/* Do DNS MX lookup and send to mail exchangers */
char szDomainMXHost[MAX_HOST_NAME];
MXS_HANDLE hMXSHandle = USmtpGetMXFirst(hSvrConfig, pszDestDomain,
szDomainMXHost);
if (hMXSHandle != INVALID_MXS_HANDLE) {
iError = 0;
do {
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send DEST = \"%s\" MX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\"\n",
pszDestDomain, szDomainMXHost, pszSMTPDomain, pszMailFrom,
pszRcptTo);
USmtpCleanupError(pSMTPE);
if ((iError = USmtpMailRmtDeliver(hSvrConfig, szDomainMXHost,
pszHeloDomain,
pszSendMailFrom,
pszSendRcptTo, &FSect,
pSMTPE)) == 0) {
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(pSMTPE),
szRmtMsgID,
sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "SMTP", szRmtMsgID,
szDomainMXHost);
}
break;
}
char szSmtpError[512];
USmtpGetSMTPError(pSMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send MX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", szDomainMXHost, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send MX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", szDomainMXHost, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
if (USmtpIsFatalError(pSMTPE))
break;
} while (USmtpGetMXNext(hMXSHandle, szDomainMXHost) == 0);
USmtpMXSClose(hMXSHandle);
if (iError < 0)
return iError;
} else {
iError = ErrGetErrorCode();
/*
* If the target domain does not exist at all (or it has a
* misconfigured DNS), bounce soon without trying the A record.
* It's pointless engaging in retry policies when the recipient
* domain does not exist.
*/
if (DNS_FatalError(iError)) {
ErrorPush();
/* No account inside the handled domain */
char szBounceMsg[512];
SysSNPrintf(szBounceMsg, sizeof(szBounceMsg) - 1,
"Recipient domain \"%s\" does not exist "
"(or it has a misconfigured DNS)", pszDestDomain);
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send NXD/EDNS = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed!\n",
pszDestDomain, pszSMTPDomain, pszMailFrom, pszRcptTo);
QueUtErrLogMessage(hQueue, hMessage, "%s\n", szBounceMsg);
QueUtNotifyPermErrDelivery(hQueue, hMessage, hFSpool, szBounceMsg, NULL,
true);
return ErrorPop();
}
/*
* Fall back to A record delivery only if the domain has
* no MX records.
*/
if (iError != ERR_DNS_NOTFOUND) {
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send EDNS = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", pszDestDomain, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
ErrGetErrorString(iError), SMTP_SERVER_VARNAME,
pszDestDomain);
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send EDNS = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", pszDestDomain, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
ErrGetErrorString(iError), SMTP_SERVER_VARNAME,
pszDestDomain);
return ErrorSet(iError);
}
/* MX records for destination domain not found, try direct ! */
SysLogMessage(LOG_LEV_MESSAGE,
"MX records for domain \"%s\" not found, trying direct.\n",
pszDestDomain);
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send FF = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
pszDestDomain, pszSMTPDomain, pszMailFrom, pszRcptTo);
USmtpCleanupError(pSMTPE);
if ((iError = USmtpMailRmtDeliver(hSvrConfig, pszDestDomain,
pszHeloDomain, pszSendMailFrom,
pszSendRcptTo, &FSect, pSMTPE)) < 0) {
ErrorPush();
/*
* If the A record of the recipient host does not exist, set the
* fatal SMTP error so that the caller can properly bounce the
* message.
*/
if (iError == ERR_DNS_NOTFOUND || iError == ERR_BAD_SERVER_ADDR)
USmtpSetError(pSMTPE, SMTP_FATAL_ERROR,
ErrGetErrorString(iError), pszDestDomain);
char szSmtpError[512];
USmtpGetSMTPError(pSMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send FF = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", pszDestDomain, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send FF = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", pszDestDomain, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
return ErrorPop();
}
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(pSMTPE),
szRmtMsgID, sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "SMTP", szRmtMsgID, pszDestDomain);
}
}
} else {
iError = 0;
for (int i = 0; ppMXGWs[i] != NULL; i++) {
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send DEST = \"%s\" MX = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
pszDestDomain, ppMXGWs[i]->pszHost, pszSMTPDomain, pszMailFrom, pszRcptTo);
USmtpCleanupError(pSMTPE);
if ((iError = USmtpSendMail(ppMXGWs[i], pszHeloDomain, pszSendMailFrom,
pszSendRcptTo, &FSect, pSMTPE)) == 0) {
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(pSMTPE),
szRmtMsgID, sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "SMTP", szRmtMsgID,
ppMXGWs[i]->pszHost);
}
break;
}
char szSmtpError[512];
USmtpGetSMTPError(pSMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send MX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", ppMXGWs[i]->pszHost, pszSMTPDomain, pszMailFrom,
pszRcptTo, SMTP_ERROR_VARNAME, szSmtpError,
SMTP_SERVER_VARNAME, USmtpGetErrorServer(pSMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send MX = \"%s\" SMTP = \"%s\" "
"From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", ppMXGWs[i]->pszHost, pszSMTPDomain,
pszMailFrom, pszRcptTo, SMTP_ERROR_VARNAME,
szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(pSMTPE));
if (USmtpIsFatalError(pSMTPE))
break;
}
USmtpFreeGateways(ppMXGWs);
if (iError < 0)
return iError;
}
return 0;
}
static char *SMAILMacroLkupProc(void *pPrivate, char const *pszName, int iSize)
{
MacroSubstCtx *pMSC = (MacroSubstCtx *) pPrivate;
if (MemMatch(pszName, iSize, "FROM", 4)) {
char const *const *ppszFrom = USmlGetMailFrom(pMSC->hFSpool);
int iFromDomains = StrStringsCount(ppszFrom);
return SysStrDup((iFromDomains > 0) ? ppszFrom[iFromDomains - 1] : "");
} else if (MemMatch(pszName, iSize, "RCPT", 4)) {
char const *const *ppszRcpt = USmlGetRcptTo(pMSC->hFSpool);
int iRcptDomains = StrStringsCount(ppszRcpt);
return SysStrDup((iRcptDomains > 0) ? ppszRcpt[iRcptDomains - 1] : "");
} else if (MemMatch(pszName, iSize, "FILE", 4)) {
return SysStrDup(pMSC->FSect.szFilePath);
} else if (MemMatch(pszName, iSize, "MSGID", 5)) {
return SysStrDup(USmlGetSpoolFile(pMSC->hFSpool));
} else if (MemMatch(pszName, iSize, "MSGREF", 6)) {
return SysStrDup(USmlGetSmtpMessageID(pMSC->hFSpool));
} else if (MemMatch(pszName, iSize, "LOCALADDR", 9)) {
char const *const *ppszInfo = USmlGetInfo(pMSC->hFSpool);
return SysStrDup(ppszInfo[smiServerAddr]);
} else if (MemMatch(pszName, iSize, "REMOTEADDR", 10)) {
char const *const *ppszInfo = USmlGetInfo(pMSC->hFSpool);
return SysStrDup(ppszInfo[smiClientAddr]);
} else if (MemMatch(pszName, iSize, "TMPFILE", 7)) {
char szTmpFile[SYS_MAX_PATH];
MscSafeGetTmpFile(szTmpFile, sizeof(szTmpFile));
if (MscCopyFile(szTmpFile, pMSC->FSect.szFilePath) < 0) {
CheckRemoveFile(szTmpFile);
return NULL;
}
return SysStrDup(szTmpFile);
} else if (MemMatch(pszName, iSize, "USERAUTH", 8)) {
char szAuthName[MAX_ADDR_NAME] = "-";
USmlMessageAuth(pMSC->hFSpool, szAuthName, sizeof(szAuthName) - 1);
return SysStrDup(szAuthName);
}
return SysStrDup("");
}
static int SMAILCmdMacroSubstitutes(char **ppszCmdTokens, SPLF_HANDLE hFSpool)
{
MacroSubstCtx MSC;
MSC.hFSpool = hFSpool;
/*
* This function retrieve the spool file message section and sync the content.
* This is necessary before passing the file name to external programs.
*/
if (USmlGetMsgFileSection(hFSpool, MSC.FSect) < 0)
return ErrGetErrorCode();
return MscReplaceTokens(ppszCmdTokens, SMAILMacroLkupProc, &MSC);
}
static int SMAILCmd_external(SVRCFG_HANDLE hSvrConfig, SHB_HANDLE hShbSMAIL,
char const *pszDestDomain, char **ppszCmdTokens, int iNumTokens,
SPLF_HANDLE hFSpool, QUEUE_HANDLE hQueue, QMSG_HANDLE hMessage)
{
/* Apply filters ... */
if (FilFilterMessage(hFSpool, hQueue, hMessage, FILTER_MODE_INBOUND, NULL) < 0)
return ErrGetErrorCode();
if (iNumTokens < 5) {
ErrSetErrorCode(ERR_BAD_DOMAIN_PROC_CMD_SYNTAX);
return ERR_BAD_DOMAIN_PROC_CMD_SYNTAX;
}
int iPriority = atoi(ppszCmdTokens[1]);
int iWaitTimeout = atoi(ppszCmdTokens[2]) * 1000;
int iExitStatus = 0;
if (SysExec(ppszCmdTokens[3], &ppszCmdTokens[3], iWaitTimeout, iPriority,
&iExitStatus) < 0) {
ErrorPush();
char const *pszMailFrom = USmlMailFrom(hFSpool);
char const *pszRcptTo = USmlRcptTo(hFSpool);
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL EXTRN-Send Prg = \"%s\" Domain = \"%s\" From = \"%s\" To = \"%s\" Failed !\n",
ppszCmdTokens[3], pszDestDomain, pszMailFrom, pszRcptTo);
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL EXTRN-Send Prg = \"%s\" Domain = \"%s\" From = \"%s\" To = \"%s\" Failed !\n",
ppszCmdTokens[3], pszDestDomain, pszMailFrom, pszRcptTo);
return ErrorPop();
}
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL))
USmlLogMessage(hFSpool, "EXTRN", NULL, ppszCmdTokens[3]);
return (iExitStatus == SMAIL_EXTERNAL_EXIT_BREAK) ? SMAIL_STOP_PROCESSING: 0;
}
static int SMAILCmd_filter(SVRCFG_HANDLE hSvrConfig, SHB_HANDLE hShbSMAIL,
char const *pszDestDomain, char **ppszCmdTokens, int iNumTokens,
SPLF_HANDLE hFSpool, QUEUE_HANDLE hQueue, QMSG_HANDLE hMessage)
{
if (iNumTokens < 5) {
ErrSetErrorCode(ERR_BAD_MAILPROC_CMD_SYNTAX);
return ERR_BAD_MAILPROC_CMD_SYNTAX;
}
int iPriority = atoi(ppszCmdTokens[1]);
int iWaitTimeout = atoi(ppszCmdTokens[2]) * 1000;
int iExitStatus = 0;
if (SysExec(ppszCmdTokens[3], &ppszCmdTokens[3], iWaitTimeout, iPriority,
&iExitStatus) < 0) {
ErrorPush();
char const *pszMailFrom = USmlMailFrom(hFSpool);
char const *pszRcptTo = USmlRcptTo(hFSpool);
ErrLogMessage(LOG_LEV_MESSAGE,
"USMAIL FILTER Prg = \"%s\" From = \"%s\" To = \"%s\" Failed !\n",
ppszCmdTokens[3], pszMailFrom, pszRcptTo);
QueUtErrLogMessage(hQueue, hMessage,
"USMAIL FILTER Prg = \"%s\" From = \"%s\" To = \"%s\" Failed !\n",
ppszCmdTokens[3], pszMailFrom, pszRcptTo);
return ErrorPop();
}
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL))
USmlLogMessage(hFSpool, "FILTER", NULL, ppszCmdTokens[3]);
/* Separate code from flags */
int iExitFlags = iExitStatus & FILTER_FLAGS_MASK;
iExitStatus &= ~FILTER_FLAGS_MASK;
if (iExitStatus == FILTER_OUT_EXITCODE ||
iExitStatus == FILTER_OUT_NN_EXITCODE ||
iExitStatus == FILTER_OUT_NNF_EXITCODE) {
/* Filter out message */
char *pszRejMsg = FilGetFilterRejMessage(USmlGetSpoolFilePath(hFSpool));
if (iExitStatus == FILTER_OUT_EXITCODE)
QueUtNotifyPermErrDelivery(hQueue, hMessage, NULL,
(pszRejMsg != NULL) ? pszRejMsg :
ErrGetErrorString(ERR_FILTERED_MESSAGE),
NULL, true);
else if (iExitStatus == FILTER_OUT_NN_EXITCODE)
QueCleanupMessage(hQueue, hMessage,
!QueUtRemoveSpoolErrors());
else
QueCleanupMessage(hQueue, hMessage, false);
SysFree(pszRejMsg);
ErrSetErrorCode(ERR_FILTERED_MESSAGE);
return ERR_FILTERED_MESSAGE;
} else if (iExitStatus == FILTER_MODIFY_EXITCODE) {
/* Filter modified the message, we need to reload the spool handle */
if (USmlReloadHandle(hFSpool) < 0) {
ErrorPush();
char const *pszMailFrom = USmlMailFrom(hFSpool);
char const *pszRcptTo = USmlRcptTo(hFSpool);
SysLogMessage(LOG_LEV_MESSAGE,
"Filter error [ Modified message corrupted ]: Sender = \"%s\" Recipient = \"%s\" (%s)\n",
pszMailFrom, pszRcptTo,
ppszCmdTokens[3]);
QueUtErrLogMessage(hQueue, hMessage,
"Filter error [ Modified message corrupted ]: Sender = \"%s\" Recipient = \"%s\" (%s)\n",
pszMailFrom, pszRcptTo,
ppszCmdTokens[3]);
QueCleanupMessage(hQueue, hMessage, true);
return ErrorPop();
}
}
return (iExitFlags & FILTER_FLAGS_BREAK) ? SMAIL_STOP_PROCESSING: 0;
}
static int SMAILCmd_smtp(SVRCFG_HANDLE hSvrConfig, SHB_HANDLE hShbSMAIL,
char const *pszDestDomain, char **ppszCmdTokens, int iNumTokens,
SPLF_HANDLE hFSpool, QUEUE_HANDLE hQueue, QMSG_HANDLE hMessage)
{
if (iNumTokens != 1) {
ErrSetErrorCode(ERR_BAD_DOMAIN_PROC_CMD_SYNTAX);
return ERR_BAD_DOMAIN_PROC_CMD_SYNTAX;
}
SMTPError SMTPE;
USmtpInitError(&SMTPE);
if (SMAILRemoteMsgSMTPSend(hSvrConfig, hShbSMAIL, hFSpool, hQueue, hMessage,
pszDestDomain, &SMTPE) < 0) {
/* If we get an SMTP fatal error We must return <0 , otherwise >0 to give */
/* XMail to ability to resume the command */
int iReturnCode = USmtpIsFatalError(&SMTPE) ?
ErrGetErrorCode(): -ErrGetErrorCode();
/* If a permanent SMTP error has been detected, then notify the message sender */
if (USmtpIsFatalError(&SMTPE))
QueUtNotifyPermErrDelivery(hQueue, hMessage, hFSpool,
USmtpGetErrorMessage(&SMTPE),
USmtpGetErrorServer(&SMTPE), false);
USmtpCleanupError(&SMTPE);
return iReturnCode;
}
USmtpCleanupError(&SMTPE);
return 0;
}
static int SMAILCmd_smtprelay(SVRCFG_HANDLE hSvrConfig, SHB_HANDLE hShbSMAIL,
char const *pszDestDomain, char **ppszCmdTokens, int iNumTokens,
SPLF_HANDLE hFSpool, QUEUE_HANDLE hQueue, QMSG_HANDLE hMessage)
{
/* Apply filters ... */
if (FilFilterMessage(hFSpool, hQueue, hMessage, FILTER_MODE_OUTBOUND, NULL) < 0)
return ErrGetErrorCode();
if (iNumTokens < 2) {
ErrSetErrorCode(ERR_BAD_DOMAIN_PROC_CMD_SYNTAX);
return ERR_BAD_DOMAIN_PROC_CMD_SYNTAX;
}
char **ppszRelays = NULL;
if (ppszCmdTokens[1][0] == '#') {
if ((ppszRelays = StrTokenize(ppszCmdTokens[1] + 1, ";")) != NULL)
MscRandomizeStringsOrder(ppszRelays);
} else
ppszRelays = StrTokenize(ppszCmdTokens[1], ";");
if (ppszRelays == NULL)
return ErrGetErrorCode();
SMTPGateway **ppGws = USmtpGetCfgGateways(hSvrConfig, ppszRelays,
iNumTokens > 2 ? ppszCmdTokens[2]: NULL);
StrFreeStrings(ppszRelays);
if (ppGws == NULL)
return ErrGetErrorCode();
/* This function retrieve the spool file message section and sync the content. */
/* This is necessary before sending the file */
FileSection FSect;
if (USmlGetMsgFileSection(hFSpool, FSect) < 0) {
ErrorPush();
USmtpFreeGateways(ppGws);
return ErrorPop();
}
/* Get spool file infos */
char const *pszSMTPDomain = USmlGetSMTPDomain(hFSpool);
char const *pszMailFrom = USmlMailFrom(hFSpool);
char const *pszRcptTo = USmlRcptTo(hFSpool);
char const *pszSendMailFrom = USmlSendMailFrom(hFSpool);
char const *pszSendRcptTo = USmlSendRcptTo(hFSpool);
char const *pszSpoolFilePath = USmlGetSpoolFilePath(hFSpool);
/* Get HELO domain */
char szHeloDomain[MAX_HOST_NAME];
SvrConfigVar("HeloDomain", szHeloDomain, sizeof(szHeloDomain) - 1, hSvrConfig, "");
char const *pszHeloDomain = IsEmptyString(szHeloDomain) ? NULL: szHeloDomain;
SMTPError SMTPE;
USmtpInitError(&SMTPE);
/* By initializing this to zero makes XMail to discharge all mail for domains */
/* that have an empty relay list */
int iReturnCode = 0;
for (int i = 0; ppGws[i] != NULL && iReturnCode >= 0; i++) {
SysLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send RLYS = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\"\n",
ppGws[i]->pszHost, pszSMTPDomain, pszMailFrom, pszRcptTo);
USmtpCleanupError(&SMTPE);
if (USmtpSendMail(ppGws[i], pszHeloDomain, pszSendMailFrom,
pszSendRcptTo, &FSect, &SMTPE) == 0) {
/* Log Mailer operation */
if (SMAILLogEnabled(hShbSMAIL)) {
char szRmtMsgID[256];
USmtpGetSMTPRmtMsgID(USmtpGetErrorMessage(&SMTPE),
szRmtMsgID,
sizeof(szRmtMsgID));
USmlLogMessage(hFSpool, "RLYS", szRmtMsgID,
ppGws[i]->pszHost);
}
USmtpCleanupError(&SMTPE);
USmtpFreeGateways(ppGws);
return 0;
}
int iErrorCode = ErrGetErrorCode();
char szSmtpError[512];
USmtpGetSMTPError(&SMTPE, szSmtpError, sizeof(szSmtpError));
ErrLogMessage(LOG_LEV_MESSAGE,
"SMAIL SMTP-Send RLYS = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", ppGws[i]->pszHost, pszSMTPDomain, pszMailFrom,
pszRcptTo, SMTP_ERROR_VARNAME, szSmtpError, SMTP_SERVER_VARNAME,
USmtpGetErrorServer(&SMTPE));
QueUtErrLogMessage(hQueue, hMessage,
"SMAIL SMTP-Send RLYS = \"%s\" SMTP = \"%s\" From = \"%s\" To = \"%s\" Failed !\n"
"%s = \"%s\"\n"
"%s = \"%s\"\n", ppGws[i]->pszHost, pszSMTPDomain, pszMailFrom,
pszRcptTo, SMTP_ERROR_VARNAME, szSmtpError,