eNextState get_one_mx_host_ip(AsyncIO *IO)
{
SmtpOutMsg * Msg = IO->Data;
/*
* here we start with the lookup of one host. it might be...
* - the relay host *sigh*
* - the direct hostname if there was no mx record
* - one of the mx'es
*/
SetSMTPState(IO, (Msg->pCurrRelay->IPv6)?eSTMPalookup:eSTMPaaaalookup);
EVS_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
EVS_syslog(LOG_DEBUG,
"looking up %s-Record %s : %d ...\n",
(Msg->pCurrRelay->IPv6)? "aaaa": "a",
Msg->pCurrRelay->Host,
Msg->pCurrRelay->Port);
if (!QueueQuery((Msg->pCurrRelay->IPv6)? ns_t_aaaa : ns_t_a,
Msg->pCurrRelay->Host,
&Msg->IO,
&Msg->HostLookup,
get_one_mx_host_ip_done))
{
Msg->MyQEntry->Status = 5;
StrBufPrintf(Msg->MyQEntry->StatusMessage,
"No MX hosts found for <%s>", Msg->node);
Msg->IO.NextState = eTerminateConnection;
return IO->NextState;
}
IO->NextState = eReadDNSReply;
return IO->NextState;
}
void headers_brief_filter(long msgnum, void *userdata)
{
long i, l;
struct CtdlMessage *msg;
msg_filter *flt = (msg_filter*) userdata;
l = GetCount(flt->Filter);
msg = CtdlFetchMessage(msgnum, 0, 1);
StrBufPrintf(flt->buffer, "%ld", msgnum);
if (msg == NULL) {
for (i = 0; i < l; i++) {
StrBufAppendBufPlain(flt->buffer, HKEY("|"), 0);
}
}
else {
const char *k;
long len;
void *v;
RewindHashPos(flt->Filter, flt->p, 0);
while (GetNextHashPos(flt->Filter, flt->p, &len, &k, &v)) {
eMsgField f = (eMsgField) v;
StrBufAppendBufPlain(flt->buffer, HKEY("|"), 0);
if (!CM_IsEmpty(msg, f)) {
StrBufAppendBufPlain(flt->buffer, CM_KEY(msg, f), 0);
}
}
}
StrBufAppendBufPlain(flt->buffer, HKEY("\n"), 0);
cputbuf(flt->buffer);
}
eNextState POP3C_SendGetOneMsg(pop3aggr *RecvMsg)
{
AsyncIO *IO = &RecvMsg->IO;
long HKLen;
const char *HKey;
void *vData;
SetPOP3State(IO, eGetMsg);
RecvMsg->CurrMsg = NULL;
while ((RecvMsg->Pos != NULL) &&
GetNextHashPos(RecvMsg->MsgNumbers,
RecvMsg->Pos,
&HKLen, &HKey,
&vData) &&
(RecvMsg->CurrMsg = (FetchItem*) vData,
RecvMsg->CurrMsg->NeedFetch == 0))
{}
if ((RecvMsg->CurrMsg != NULL ) && (RecvMsg->CurrMsg->NeedFetch == 1))
{
/* Message has not been seen.
* Tell the server to fetch the message... */
StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
"RETR %ld\r\n", RecvMsg->CurrMsg->MSGID);
POP3C_DBG_SEND();
return eReadMessage;
}
else {
RecvMsg->State = ReadQuitState;
return POP3_C_DispatchWriteDone(&RecvMsg->IO);
}
}
eNextState POP3C_GetOneMessageIDState(pop3aggr *RecvMsg)
{
AsyncIO *IO = &RecvMsg->IO;
#if 0
int rc;
rc = TestValidateHash(RecvMsg->MsgNumbers);
if (rc != 0)
EVP3CCS_syslog(LOG_DEBUG, "Hash Invalid: %d\n", rc);
#endif
POP3C_DBG_READ();
if (!POP3C_OK) return eTerminateConnection;
RecvMsg->CurrMsg->MsgUIDL =
NewStrBufPlain(NULL, StrLength(RecvMsg->IO.IOBuf));
RecvMsg->CurrMsg->MsgUID =
NewStrBufPlain(NULL, StrLength(RecvMsg->IO.IOBuf) * 2);
StrBufExtract_token(RecvMsg->CurrMsg->MsgUIDL,
RecvMsg->IO.IOBuf, 2, ' ');
StrBufPrintf(RecvMsg->CurrMsg->MsgUID,
"pop3/%s/%s:%s@%s",
ChrPtr(RecvMsg->RoomName),
ChrPtr(RecvMsg->CurrMsg->MsgUIDL),
RecvMsg->IO.ConnectMe->User,
RecvMsg->IO.ConnectMe->Host);
RecvMsg->State --;
return eSendReply;
}
/*
* Embed the room banner
*
* got The information returned from a GOTO server command
* navbar_style Determines which navigation buttons to display
*/
void tmplput_roombanner(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
/* Refresh current room states. Doesn't work? gotoroom(NULL); */
wc_printf("<div id=\"banner\">\n");
/* The browser needs some information for its own use */
wc_printf("<script type=\"text/javascript\"> \n"
" room_is_trash = %d; \n"
"</script>\n",
((WC->CurRoom.RAFlags & UA_ISTRASH) != 0)
);
/*
* If the user happens to select the "make this my start page" link,
* we want it to remember the URL as a "/dotskip" one instead of
* a "skip" or "gotonext" or something like that.
*/
if (WCC->Hdr->this_page == NULL) {
WCC->Hdr->this_page = NewStrBuf();
}
StrBufPrintf(WCC->Hdr->this_page, "dotskip?room=%s", ChrPtr(WC->CurRoom.name));
do_template("roombanner");
do_template("navbar");
wc_printf("</div>\n");
}
/*
* Fetch the "mortuary" - a list of dead buddies which we keep around forever
* so we can remove them from any client's roster that still has them listed
*/
void xmpp_store_mortuary(HashList *mortuary) {
HashPos *HashPos;
long len;
void *Value;
const char *Key;
StrBuf *themsg;
themsg = NewStrBuf();
StrBufPrintf(themsg, "Content-type: " XMPPMORTUARY "\n"
"Content-transfer-encoding: 7bit\n"
"\n"
);
HashPos = GetNewHashPos(mortuary, 0);
while (GetNextHashPos(mortuary, HashPos, &len, &Key, &Value) != 0)
{
StrBufAppendPrintf(themsg, "%s\n", (char *)Value);
}
DeleteHashPos(&HashPos);
/* Delete the old mortuary */
CtdlDeleteMessages(USERCONFIGROOM, NULL, 0, XMPPMORTUARY);
/* And save the new one to disk */
quickie_message("Citadel", NULL, NULL, USERCONFIGROOM, ChrPtr(themsg), 4, "XMPP Mortuary");
FreeStrBuf(&themsg);
}
StrBuf *SerializeQueueItem(OneQueItem *MyQItem)
{
StrBuf *QMessage;
HashPos *It;
const char *Key;
long len;
void *vQE;
QMessage = NewStrBufPlain(NULL, SIZ);
StrBufPrintf(QMessage, "Content-type: %s\n", SPOOLMIME);
// "attempted|%ld\n" "retry|%ld\n",, (long)time(NULL), (long)retry );
StrBufAppendBufPlain(QMessage, HKEY("\nmsgid|"), 0);
StrBufAppendPrintf(QMessage, "%ld", MyQItem->MessageID);
StrBufAppendBufPlain(QMessage, HKEY("\nsubmitted|"), 0);
StrBufAppendPrintf(QMessage, "%ld", MyQItem->Submitted);
if (StrLength(MyQItem->BounceTo) > 0) {
StrBufAppendBufPlain(QMessage, HKEY("\nbounceto|"), 0);
StrBufAppendBuf(QMessage, MyQItem->BounceTo, 0);
}
if (StrLength(MyQItem->EnvelopeFrom) > 0) {
StrBufAppendBufPlain(QMessage, HKEY("\nenvelope_from|"), 0);
StrBufAppendBuf(QMessage, MyQItem->EnvelopeFrom, 0);
}
if (StrLength(MyQItem->SenderRoom) > 0) {
StrBufAppendBufPlain(QMessage, HKEY("\nsource_room|"), 0);
StrBufAppendBuf(QMessage, MyQItem->SenderRoom, 0);
}
StrBufAppendBufPlain(QMessage, HKEY("\nretry|"), 0);
StrBufAppendPrintf(QMessage, "%ld",
MyQItem->Retry);
StrBufAppendBufPlain(QMessage, HKEY("\nattempted|"), 0);
StrBufAppendPrintf(QMessage, "%ld",
time(NULL) /*ctdl_ev_now()*/ + MyQItem->Retry);
It = GetNewHashPos(MyQItem->MailQEntries, 0);
while (GetNextHashPos(MyQItem->MailQEntries, It, &len, &Key, &vQE))
{
MailQEntry *ThisItem = vQE;
StrBufAppendBufPlain(QMessage, HKEY("\nremote|"), 0);
StrBufAppendBuf(QMessage, ThisItem->Recipient, 0);
StrBufAppendBufPlain(QMessage, HKEY("|"), 0);
StrBufAppendPrintf(QMessage, "%d", ThisItem->Status);
StrBufAppendBufPlain(QMessage, HKEY("|"), 0);
if (ThisItem->AllStatusMessages != NULL)
StrBufAppendBuf(QMessage, ThisItem->AllStatusMessages, 0);
else
StrBufAppendBuf(QMessage, ThisItem->StatusMessage, 0);
}
DeleteHashPos(&It);
StrBufAppendBufPlain(QMessage, HKEY("\n"), 0);
return QMessage;
}
eNextState STMPC_send_HELO(SmtpOutMsg *Msg)
{
AsyncIO *IO = &Msg->IO;
StrBufPrintf(Msg->IO.SendBuf.Buf, "HELO %s\r\n", CtdlGetConfigStr("c_fqdn"));
SMTP_DBG_SEND();
return eReadMessage;
}
void SerializeNode(NodeConf *Node, StrBuf *Buf)
{
StrBufPrintf(Buf, "%s|%s|%s|%s",
ChrPtr(Node->NodeName),
ChrPtr(Node->Secret),
ChrPtr(Node->Host),
ChrPtr(Node->Port));
}
void display_editfloorpic(void) {
StrBuf *PicAction;
PicAction = NewStrBuf();
StrBufPrintf(PicAction, "_floorpic_|%s", bstr("which_floor"));
putbstr("__WHICHPIC", PicAction);
putbstr("__PICDESC", NewStrBufPlain(_("the icon for this floor"), -1));
putbstr("__UPLURL", NewStrBufPlain(HKEY("editfloorpic")));
display_graphics_upload("editfloorpic");
}
eNextState POP3C_SendPassword(pop3aggr *RecvMsg)
{
AsyncIO *IO = &RecvMsg->IO;
SetPOP3State(IO, ePassword);
/* Password */
StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
"PASS %s\r\n", ChrPtr(RecvMsg->pop3pass));
EVP3CM_syslog(LOG_DEBUG, "<PASS <password>\n");
// POP3C_DBG_SEND(); No, we won't write the passvoid to syslog...
return eReadMessage;
}
eNextState SMTPC_send_FROM(SmtpOutMsg *Msg)
{
AsyncIO *IO = &Msg->IO;
/* previous command succeeded, now try the MAIL FROM: command */
StrBufPrintf(Msg->IO.SendBuf.Buf,
"MAIL FROM:<%s>\r\n",
Msg->envelope_from);
SMTP_DBG_SEND();
return eReadMessage;
}
eNextState SMTPC_send_EHLO(SmtpOutMsg *Msg)
{
AsyncIO *IO = &Msg->IO;
/* At this point we know we are talking to a real SMTP server */
/* Do a EHLO command. If it fails, try the HELO command. */
StrBufPrintf(Msg->IO.SendBuf.Buf, "EHLO %s\r\n", CtdlGetConfigStr("c_fqdn"));
SMTP_DBG_SEND();
return eReadMessage;
}
eNextState SMTP_C_ConnFail(AsyncIO *IO)
{
SmtpOutMsg *Msg = IO->Data;
Msg->MyQEntry->Status = 4;
EVS_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
StrBufPrintf(IO->ErrMsg, "Connection failure: %s while talking to %s",
ReadErrors[Msg->State].Key,
Msg->mx_host);
return FailOneAttempt(IO);
}
eNextState SMTPC_send_RCPT(SmtpOutMsg *Msg)
{
AsyncIO *IO = &Msg->IO;
/* MAIL succeeded, now try the RCPT To: command */
StrBufPrintf(Msg->IO.SendBuf.Buf,
"RCPT TO:<%s@%s>\r\n",
Msg->user,
Msg->node);
SMTP_DBG_SEND();
return eReadMessage;
}
eNextState SMTP_C_Timeout(AsyncIO *IO)
{
SmtpOutMsg *Msg = IO->Data;
Msg->MyQEntry->Status = 4;
EVS_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
StrBufPrintf(IO->ErrMsg, "Timeout: %s while talking to %s",
ReadErrors[Msg->State].Key,
Msg->mx_host);
if (Msg->State > eRCPT)
return eAbort;
else
return FailOneAttempt(IO);
}
eNextState POP3C_SendUser(pop3aggr *RecvMsg)
{
AsyncIO *IO = &RecvMsg->IO;
SetPOP3State(IO, eUser);
/* Identify ourselves. NOTE: we have to append a CR to each command.
* The LF will automatically be appended by sock_puts(). Believe it
* or not, leaving out the CR will cause problems if the server happens
* to be Exchange, which is so b0rken it actually barfs on
* LF-terminated newlines.
*/
StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
"USER %s\r\n", ChrPtr(RecvMsg->pop3user));
POP3C_DBG_SEND();
return eReadMessage;
}
int ReadPostData(void)
{
int rc;
int urlencoded_post = 0;
wcsession *WCC = WC;
StrBuf *content = NULL;
urlencoded_post = (strncasecmp(ChrPtr(WCC->Hdr->HR.ContentType), "application/x-www-form-urlencoded", 33) == 0) ;
content = NewStrBufPlain(NULL, WCC->Hdr->HR.ContentLength + 256);
if (!urlencoded_post)
{
StrBufPrintf(content,
"Content-type: %s\n"
"Content-length: %ld\n\n",
ChrPtr(WCC->Hdr->HR.ContentType),
WCC->Hdr->HR.ContentLength);
}
/** Read the entire input data at once. */
rc = client_read_to(WCC->Hdr, content,
WCC->Hdr->HR.ContentLength,
SLEEPING);
if (rc < 0)
return rc;
if (urlencoded_post) {
ParseURLParams(content);
} else if (!strncasecmp(ChrPtr(WCC->Hdr->HR.ContentType), "multipart", 9)) {
char *Buf;
char *BufEnd;
long len;
len = StrLength(content);
Buf = SmashStrBuf(&content);
BufEnd = Buf + len;
mime_parser(Buf, BufEnd, *upload_handler, NULL, NULL, NULL, 0);
free(Buf);
} else if (WCC->Hdr->HR.ContentLength > 0) {
WCC->upload = content;
WCC->upload_length = StrLength(WCC->upload);
content = NULL;
}
FreeStrBuf(&content);
return 1;
}
eNextState POP3C_SendDelete(pop3aggr *RecvMsg)
{
AsyncIO *IO = &RecvMsg->IO;
SetPOP3State(IO, eDelete);
if (!RecvMsg->keep) {
StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
"DELE %ld\r\n", RecvMsg->CurrMsg->MSGID);
POP3C_DBG_SEND();
return eReadMessage;
}
else {
RecvMsg->State = ReadMessageBodyFollowing;
return POP3_C_DispatchWriteDone(&RecvMsg->IO);
}
}
void SetConnectStatus(AsyncIO *IO)
{
SmtpOutMsg *Msg = IO->Data;
char buf[256];
void *src;
buf[0] = '\0';
if (IO->ConnectMe->IPv6) {
src = &IO->ConnectMe->Addr.sin6_addr;
}
else {
struct sockaddr_in *addr;
addr = (struct sockaddr_in *)&IO->ConnectMe->Addr;
src = &addr->sin_addr.s_addr;
}
inet_ntop((IO->ConnectMe->IPv6)?AF_INET6:AF_INET,
src,
buf,
sizeof(buf));
if (Msg->mx_host == NULL)
Msg->mx_host = "<no MX-Record>";
EVS_syslog(LOG_INFO,
"connecting to %s [%s]:%d ...\n",
Msg->mx_host,
buf,
Msg->IO.ConnectMe->Port);
Msg->MyQEntry->Status = 4;
StrBufPrintf(Msg->MyQEntry->StatusMessage,
"Timeout while connecting %s [%s]:%d ",
Msg->mx_host,
buf,
Msg->IO.ConnectMe->Port);
Msg->IO.NextState = eConnect;
}
eNextState SMTPC_send_auth(SmtpOutMsg *Msg)
{
AsyncIO *IO = &Msg->IO;
char buf[SIZ];
char encoded[1024];
if ((Msg->pCurrRelay == NULL) ||
(Msg->pCurrRelay->User == NULL))
READ_NEXT_STATE(eFROM); /* Skip auth, shouldn't even come here!... */
else {
/* Do an AUTH command if necessary */
if (Msg->SendLogin)
{
StrBufPlain(Msg->IO.SendBuf.Buf,
HKEY("AUTH LOGIN\r\n"));
}
else
{
sprintf(buf, "%s%c%s%c%s",
Msg->pCurrRelay->User, '\0',
Msg->pCurrRelay->User, '\0',
Msg->pCurrRelay->Pass);
size_t len = CtdlEncodeBase64(encoded, buf,
strlen(Msg->pCurrRelay->User) * 2 +
strlen(Msg->pCurrRelay->Pass) + 2, 0);
if (buf[len - 1] == '\n') {
buf[len - 1] = '\0';
}
StrBufPrintf(Msg->IO.SendBuf.Buf,
"AUTH PLAIN %s\r\n",
encoded);
}
}
SMTP_DBG_SEND();
return eReadMessage;
}
eNextState resolve_mx_records(AsyncIO *IO)
{
SmtpOutMsg * Msg = IO->Data;
SetSMTPState(IO, eSTMPmxlookup);
EVS_syslog(LOG_DEBUG, "%s\n", __FUNCTION__);
/* start resolving MX records here. */
if (!QueueQuery(ns_t_mx,
Msg->node,
&Msg->IO,
&Msg->MxLookup,
smtp_resolve_mx_record_done))
{
Msg->MyQEntry->Status = 5;
StrBufPrintf(Msg->MyQEntry->StatusMessage,
"No MX hosts found for <%s>", Msg->node);
return IO->NextState;
}
Msg->IO.NextState = eReadDNSReply;
return IO->NextState;
}
eNextState POP3C_GetOneMessagID(pop3aggr *RecvMsg)
{
AsyncIO *IO = &RecvMsg->IO;
long HKLen;
const char *HKey;
void *vData;
SetPOP3State(IO, eGetMsgID);
#if 0
int rc;
rc = TestValidateHash(RecvMsg->MsgNumbers);
if (rc != 0)
EVP3CCS_syslog(LOG_DEBUG, "Hash Invalid: %d\n", rc);
#endif
if((RecvMsg->Pos != NULL) &&
GetNextHashPos(RecvMsg->MsgNumbers,
RecvMsg->Pos,
&HKLen, &HKey,
&vData))
{
RecvMsg->CurrMsg = (FetchItem*) vData;
/* Find out the UIDL of the message,
* to determine whether we've already downloaded it */
StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
"UIDL %ld\r\n", RecvMsg->CurrMsg->MSGID);
POP3C_DBG_SEND();
}
else
{
RecvMsg->State++;
DeleteHashPos(&RecvMsg->Pos);
/// done receiving uidls.. start looking them up now.
RecvMsg->Pos = GetNewHashPos(RecvMsg->MsgNumbers, 0);
return EventQueueDBOperation(&RecvMsg->IO,
POP3_FetchNetworkUsetableEntry,
0);
}
return eReadMore; /* TODO */
}
static void
IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
{
const char *errmsg;
ssize_t nbytes;
AsyncIO *IO = watcher->data;
SET_EV_TIME(IO, event_base);
switch (IO->NextState) {
case eReadFile:
nbytes = FileRecvChunked(&IO->IOB, &errmsg);
if (nbytes < 0)
StrBufPlain(IO->ErrMsg, errmsg, -1);
else
{
if (IO->IOB.ChunkSendRemain == 0)
{
IO->NextState = eSendReply;
assert(IO->ReadDone);
ev_io_stop(event_base, &IO->recv_event);
PostInbound(IO);
return;
}
else
return;
}
break;
default:
nbytes = StrBuf_read_one_chunk_callback(IO->RecvBuf.fd,
0,
&IO->RecvBuf);
break;
}
#ifdef BIGBAD_IODBG
{
long nbytes;
int rv = 0;
char fn [SIZ];
FILE *fd;
const char *pch = ChrPtr(IO->RecvBuf.Buf);
const char *pchh = IO->RecvBuf.ReadWritePointer;
if (pchh == NULL)
pchh = pch;
nbytes = StrLength(IO->RecvBuf.Buf) - (pchh - pch);
snprintf(fn, SIZ, "/tmp/foolog_ev_%s.%d",
((CitContext*)(IO->CitContext))->ServiceName,
IO->SendBuf.fd);
fd = fopen(fn, "a+");
if (fd == NULL) {
syslog(LOG_EMERG, "failed to open file %s: %s", fn, strerror(errno));
cit_backtrace();
exit(1);
}
fprintf(fd, "Read: BufSize: %ld BufContent: [",
nbytes);
rv = fwrite(pchh, nbytes, 1, fd);
if (!rv) printf("failed to write debug to %s!\n", fn);
fprintf(fd, "]\n");
fclose(fd);
}
#endif
if (nbytes > 0) {
HandleInbound(IO);
} else if (nbytes == 0) {
StopClientWatchers(IO, 1);
SetNextTimeout(IO, 0.01);
return;
} else if (nbytes == -1) {
if (errno != EAGAIN) {
// FD is gone. kick it.
StopClientWatchers(IO, 1);
EV_syslog(LOG_DEBUG,
"IO_recv_callback(): Socket Invalid! [%d] [%s] [%d]\n",
errno, strerror(errno), IO->SendBuf.fd);
StrBufPrintf(IO->ErrMsg,
"Socket Invalid! [%s]",
strerror(errno));
SetNextTimeout(IO, 0.01);
}
return;
}
}
/*
* smtp_do_procmsg()
*
* Called by smtp_do_queue() to handle an individual message.
*/
void smtp_do_procmsg(long msgnum, void *userdata) {
time_t now;
int mynumsessions = num_sessions;
struct CtdlMessage *msg = NULL;
char *Author = NULL;
char *Address = NULL;
char *instr = NULL;
StrBuf *PlainQItem;
OneQueItem *MyQItem;
char *pch;
HashPos *It;
void *vQE;
long len;
const char *Key;
int HaveBuffers = 0;
StrBuf *Msg =NULL;
if (mynumsessions > max_sessions_for_outbound_smtp) {
SMTPC_syslog(LOG_INFO,
"skipping because of num jobs %d > %d max_sessions_for_outbound_smtp",
mynumsessions,
max_sessions_for_outbound_smtp);
}
SMTPC_syslog(LOG_DEBUG, "smtp_do_procmsg(%ld)\n", msgnum);
///strcpy(envelope_from, "");
msg = CtdlFetchMessage(msgnum, 1, 1);
if (msg == NULL) {
SMTPC_syslog(LOG_ERR, "tried %ld but no such message!\n",
msgnum);
return;
}
pch = instr = msg->cm_fields[eMesageText];
/* Strip out the headers (no not amd any other non-instruction) line */
while (pch != NULL) {
pch = strchr(pch, '\n');
if ((pch != NULL) &&
((*(pch + 1) == '\n') ||
(*(pch + 1) == '\r')))
{
instr = pch + 2;
pch = NULL;
}
}
PlainQItem = NewStrBufPlain(instr, -1);
CM_Free(msg);
MyQItem = DeserializeQueueItem(PlainQItem, msgnum);
FreeStrBuf(&PlainQItem);
if (MyQItem == NULL) {
SMTPC_syslog(LOG_ERR,
"Msg No %ld: already in progress!\n",
msgnum);
return; /* s.b. else is already processing... */
}
/*
* Postpone delivery if we've already tried recently.
*/
now = time(NULL);
if ((MyQItem->ReattemptWhen != 0) &&
(now < MyQItem->ReattemptWhen) &&
(run_queue_now == 0))
{
SMTPC_syslog(LOG_DEBUG,
"Retry time not yet reached. %ld seconds left.",
MyQItem->ReattemptWhen - now);
It = GetNewHashPos(MyQItem->MailQEntries, 0);
pthread_mutex_lock(&ActiveQItemsLock);
{
if (GetHashPosFromKey(ActiveQItems,
LKEY(MyQItem->MessageID),
It))
{
DeleteEntryFromHash(ActiveQItems, It);
}
}
pthread_mutex_unlock(&ActiveQItemsLock);
////FreeQueItem(&MyQItem); TODO: DeleteEntryFromHash frees this?
DeleteHashPos(&It);
return;
}
/*
* Bail out if there's no actual message associated with this
*/
if (MyQItem->MessageID < 0L) {
SMTPCM_syslog(LOG_ERR, "no 'msgid' directive found!\n");
It = GetNewHashPos(MyQItem->MailQEntries, 0);
pthread_mutex_lock(&ActiveQItemsLock);
{
if (GetHashPosFromKey(ActiveQItems,
LKEY(MyQItem->MessageID),
It))
{
DeleteEntryFromHash(ActiveQItems, It);
}
}
pthread_mutex_unlock(&ActiveQItemsLock);
DeleteHashPos(&It);
////FreeQueItem(&MyQItem); TODO: DeleteEntryFromHash frees this?
return;
}
It = GetNewHashPos(MyQItem->MailQEntries, 0);
while (GetNextHashPos(MyQItem->MailQEntries, It, &len, &Key, &vQE))
{
MailQEntry *ThisItem = vQE;
SMTPC_syslog(LOG_DEBUG, "SMTP Queue: Task: <%s> %d\n",
ChrPtr(ThisItem->Recipient),
ThisItem->Active);
}
DeleteHashPos(&It);
MyQItem->NotYetShutdownDeliveries =
MyQItem->ActiveDeliveries = CountActiveQueueEntries(MyQItem, 1);
/* failsafe against overload:
* will we exceed the limit set?
*/
if ((MyQItem->ActiveDeliveries + mynumsessions > max_sessions_for_outbound_smtp) &&
/* if yes, did we reach more than half of the quota? */
((mynumsessions * 2) > max_sessions_for_outbound_smtp) &&
/* if... would we ever fit into half of the quota?? */
(((MyQItem->ActiveDeliveries * 2) < max_sessions_for_outbound_smtp)))
{
/* abort delivery for another time. */
SMTPC_syslog(LOG_INFO,
"SMTP Queue: skipping because of num jobs %d + %ld > %d max_sessions_for_outbound_smtp",
mynumsessions,
MyQItem->ActiveDeliveries,
max_sessions_for_outbound_smtp);
It = GetNewHashPos(MyQItem->MailQEntries, 0);
pthread_mutex_lock(&ActiveQItemsLock);
{
if (GetHashPosFromKey(ActiveQItems,
LKEY(MyQItem->MessageID),
It))
{
DeleteEntryFromHash(ActiveQItems, It);
}
}
pthread_mutex_unlock(&ActiveQItemsLock);
return;
}
if (MyQItem->ActiveDeliveries > 0)
{
ParsedURL *RelayUrls = NULL;
int nActivated = 0;
int n = MsgCount++;
int m = MyQItem->ActiveDeliveries;
int i = 1;
It = GetNewHashPos(MyQItem->MailQEntries, 0);
Msg = smtp_load_msg(MyQItem, n, &Author, &Address);
RelayUrls = LoadRelayUrls(MyQItem, Author, Address);
if ((RelayUrls == NULL) && MyQItem->HaveRelay) {
while ((i <= m) &&
(GetNextHashPos(MyQItem->MailQEntries,
It, &len, &Key, &vQE)))
{
int KeepBuffers = (i == m);
MailQEntry *ThisItem = vQE;
StrBufPrintf(ThisItem->StatusMessage,
"No relay configured matching %s / %s",
(Author != NULL)? Author : "",
(Address != NULL)? Address : "");
ThisItem->Status = 5;
nActivated++;
if (i > 1) n = MsgCount++;
SMTPC_syslog(LOG_INFO,
"SMTPC: giving up on <%ld> <%s> %d / %d \n",
MyQItem->MessageID,
ChrPtr(ThisItem->Recipient),
i,
m);
(*((int*) userdata)) ++;
smtp_try_one_queue_entry(MyQItem,
ThisItem,
Msg,
KeepBuffers,
n,
RelayUrls);
if (KeepBuffers) HaveBuffers++;
i++;
}
if (Author != NULL) free (Author);
if (Address != NULL) free (Address);
DeleteHashPos(&It);
return;
}
if (Author != NULL) free (Author);
if (Address != NULL) free (Address);
while ((i <= m) &&
(GetNextHashPos(MyQItem->MailQEntries,
It, &len, &Key, &vQE)))
{
MailQEntry *ThisItem = vQE;
if (ThisItem->Active == 1)
{
int KeepBuffers = (i == m);
nActivated++;
if (nActivated % ndelay_count == 0)
usleep(delay_msec);
if (i > 1) n = MsgCount++;
SMTPC_syslog(LOG_DEBUG,
"SMTPC: Trying <%ld> <%s> %d / %d \n",
MyQItem->MessageID,
ChrPtr(ThisItem->Recipient),
i,
m);
(*((int*) userdata)) ++;
smtp_try_one_queue_entry(MyQItem,
ThisItem,
Msg,
KeepBuffers,
n,
RelayUrls);
if (KeepBuffers) HaveBuffers++;
i++;
}
}
DeleteHashPos(&It);
}
else
{
It = GetNewHashPos(MyQItem->MailQEntries, 0);
pthread_mutex_lock(&ActiveQItemsLock);
{
if (GetHashPosFromKey(ActiveQItems,
LKEY(MyQItem->MessageID),
It))
{
DeleteEntryFromHash(ActiveQItems, It);
}
else
{
long len;
const char* Key;
void *VData;
SMTPC_syslog(LOG_WARNING,
"unable to find QItem with ID[%ld]",
MyQItem->MessageID);
while (GetNextHashPos(ActiveQItems,
It,
&len,
&Key,
&VData))
{
SMTPC_syslog(LOG_WARNING,
"have: ID[%ld]",
((OneQueItem *)VData)->MessageID);
}
}
}
pthread_mutex_unlock(&ActiveQItemsLock);
DeleteHashPos(&It);
////FreeQueItem(&MyQItem); TODO: DeleteEntryFromHash frees this?
// TODO: bounce & delete?
}
if (!HaveBuffers) {
FreeStrBuf (&Msg);
// TODO : free RelayUrls
}
}
eNextState EvConnectSock(AsyncIO *IO,
double conn_timeout,
double first_rw_timeout,
int ReadFirst)
{
struct sockaddr_in egress_sin;
int fdflags;
int rc = -1;
SetEVState(IO, eIOConnectSock);
become_session(IO->CitContext);
if (ReadFirst) {
IO->NextState = eReadMessage;
}
else {
IO->NextState = eSendReply;
}
IO->SendBuf.fd = IO->RecvBuf.fd =
socket(
(IO->ConnectMe->IPv6)?PF_INET6:PF_INET,
SOCK_STREAM,
IPPROTO_TCP);
if (IO->SendBuf.fd < 0) {
EV_syslog(LOG_ERR,
"EVENT: socket() failed: %s\n",
strerror(errno));
StrBufPrintf(IO->ErrMsg,
"Failed to create socket: %s",
strerror(errno));
IO->SendBuf.fd = IO->RecvBuf.fd = 0;
return eAbort;
}
fdflags = fcntl(IO->SendBuf.fd, F_GETFL);
if (fdflags < 0) {
EV_syslog(LOG_ERR,
"EVENT: unable to get socket %d flags! %s \n",
IO->SendBuf.fd,
strerror(errno));
StrBufPrintf(IO->ErrMsg,
"Failed to get socket %d flags: %s",
IO->SendBuf.fd,
strerror(errno));
close(IO->SendBuf.fd);
IO->SendBuf.fd = IO->RecvBuf.fd = 0;
return eAbort;
}
fdflags = fdflags | O_NONBLOCK;
if (fcntl(IO->SendBuf.fd, F_SETFL, fdflags) < 0) {
EV_syslog(
LOG_ERR,
"EVENT: unable to set socket %d nonblocking flags! %s \n",
IO->SendBuf.fd,
strerror(errno));
StrBufPrintf(IO->ErrMsg,
"Failed to set socket flags: %s",
strerror(errno));
close(IO->SendBuf.fd);
IO->SendBuf.fd = IO->RecvBuf.fd = 0;
return eAbort;
}
/* TODO: maye we could use offsetof() to calc the position of data...
* http://doc.dvgu.ru/devel/ev.html#associating_custom_data_with_a_watcher
*/
ev_io_init(&IO->recv_event, IO_recv_callback, IO->RecvBuf.fd, EV_READ);
IO->recv_event.data = IO;
ev_io_init(&IO->send_event, IO_send_callback, IO->SendBuf.fd, EV_WRITE);
IO->send_event.data = IO;
ev_timer_init(&IO->conn_fail, IO_connfail_callback, conn_timeout, 0);
IO->conn_fail.data = IO;
ev_timer_init(&IO->rw_timeout, IO_Timeout_callback, first_rw_timeout,0);
IO->rw_timeout.data = IO;
/* for debugging you may bypass it like this:
* IO->Addr.sin_addr.s_addr = inet_addr("127.0.0.1");
* ((struct sockaddr_in)IO->ConnectMe->Addr).sin_addr.s_addr =
* inet_addr("127.0.0.1");
*/
if (IO->ConnectMe->IPv6) {
rc = connect(IO->SendBuf.fd,
&IO->ConnectMe->Addr,
sizeof(struct sockaddr_in6));
}
else {
/* If citserver is bound to a specific IP address on the host, make
* sure we use that address for outbound connections.
*/
memset(&egress_sin, 0, sizeof(egress_sin));
egress_sin.sin_family = AF_INET;
if (!IsEmptyStr(CtdlGetConfigStr("c_ip_addr"))) {
egress_sin.sin_addr.s_addr = inet_addr(CtdlGetConfigStr("c_ip_addr"));
if (egress_sin.sin_addr.s_addr == !INADDR_ANY) {
egress_sin.sin_addr.s_addr = INADDR_ANY;
}
/* If this bind fails, no problem; we can still use INADDR_ANY */
bind(IO->SendBuf.fd, (struct sockaddr *)&egress_sin, sizeof(egress_sin));
}
rc = connect(IO->SendBuf.fd,
(struct sockaddr_in *)&IO->ConnectMe->Addr,
sizeof(struct sockaddr_in));
}
if (rc >= 0){
SetEVState(IO, eIOConnNow);
EV_syslog(LOG_DEBUG, "connect() = %d immediate success.\n", IO->SendBuf.fd);
set_start_callback(event_base, IO, 0);
return IO->NextState;
}
else if (errno == EINPROGRESS) {
SetEVState(IO, eIOConnWait);
EV_syslog(LOG_DEBUG, "connect() = %d have to wait now.\n", IO->SendBuf.fd);
ev_io_init(&IO->conn_event,
IO_connestd_callback,
IO->SendBuf.fd,
EV_READ|EV_WRITE);
IO->conn_event.data = IO;
ev_io_start(event_base, &IO->conn_event);
ev_timer_start(event_base, &IO->conn_fail);
return IO->NextState;
}
else {
SetEVState(IO, eIOConnfail);
ev_idle_init(&IO->conn_fail_immediate,
IO_connfailimmediate_callback);
IO->conn_fail_immediate.data = IO;
ev_idle_start(event_base, &IO->conn_fail_immediate);
EV_syslog(LOG_ERR,
"connect() = %d failed: %s\n",
IO->SendBuf.fd,
strerror(errno));
StrBufPrintf(IO->ErrMsg,
"Failed to connect: %s",
strerror(errno));
return IO->NextState;
}
return IO->NextState;
}
static void
IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
{
int rc;
AsyncIO *IO = watcher->data;
const char *errmsg = NULL;
SET_EV_TIME(IO, event_base);
become_session(IO->CitContext);
#ifdef BIGBAD_IODBG
{
int rv = 0;
char fn [SIZ];
FILE *fd;
const char *pch = ChrPtr(IO->SendBuf.Buf);
const char *pchh = IO->SendBuf.ReadWritePointer;
long nbytes;
if (pchh == NULL)
pchh = pch;
nbytes = StrLength(IO->SendBuf.Buf) - (pchh - pch);
snprintf(fn, SIZ, "/tmp/foolog_ev_%s.%d",
((CitContext*)(IO->CitContext))->ServiceName,
IO->SendBuf.fd);
fd = fopen(fn, "a+");
if (fd == NULL) {
syslog(LOG_EMERG, "failed to open file %s: %s", fn, strerror(errno));
cit_backtrace();
exit(1);
}
fprintf(fd, "Send: BufSize: %ld BufContent: [",
nbytes);
rv = fwrite(pchh, nbytes, 1, fd);
if (!rv) printf("failed to write debug to %s!\n", fn);
fprintf(fd, "]\n");
#endif
switch (IO->NextState) {
case eSendFile:
rc = FileSendChunked(&IO->IOB, &errmsg);
if (rc < 0)
StrBufPlain(IO->ErrMsg, errmsg, -1);
break;
default:
rc = StrBuf_write_one_chunk_callback(IO->SendBuf.fd,
0,
&IO->SendBuf);
}
#ifdef BIGBAD_IODBG
fprintf(fd, "Sent: BufSize: %d bytes.\n", rc);
fclose(fd);
}
#endif
if (rc == 0)
{
ev_io_stop(event_base, &IO->send_event);
switch (IO->NextState) {
case eSendMore:
assert(IO->SendDone);
IO->NextState = IO->SendDone(IO);
if ((IO->NextState == eTerminateConnection) ||
(IO->NextState == eAbort) )
ShutDownCLient(IO);
else {
ev_io_start(event_base, &IO->send_event);
}
break;
case eSendFile:
if (IO->IOB.ChunkSendRemain > 0) {
ev_io_start(event_base, &IO->recv_event);
SetNextTimeout(IO, 100.0);
} else {
assert(IO->ReadDone);
IO->NextState = IO->ReadDone(IO);
switch(IO->NextState) {
case eSendDNSQuery:
case eReadDNSReply:
case eDBQuery:
case eConnect:
break;
case eSendReply:
case eSendMore:
case eSendFile:
ev_io_start(event_base,
&IO->send_event);
break;
case eReadMessage:
case eReadMore:
case eReadPayload:
case eReadFile:
break;
case eTerminateConnection:
case eAbort:
break;
}
}
break;
case eSendReply:
if (StrBufCheckBuffer(&IO->SendBuf) != eReadSuccess)
break;
IO->NextState = eReadMore;
case eReadMore:
case eReadMessage:
case eReadPayload:
case eReadFile:
if (StrBufCheckBuffer(&IO->RecvBuf) == eBufferNotEmpty)
{
HandleInbound(IO);
}
else {
ev_io_start(event_base, &IO->recv_event);
}
break;
case eDBQuery:
/*
* we now live in another queue,
* so we have to unregister.
*/
ev_cleanup_stop(loop, &IO->abort_by_shutdown);
break;
case eSendDNSQuery:
case eReadDNSReply:
case eConnect:
case eTerminateConnection:
case eAbort:
break;
}
}
else if (rc < 0) {
if (errno != EAGAIN) {
StopClientWatchers(IO, 1);
EV_syslog(LOG_DEBUG,
"IO_send_callback(): Socket Invalid! [%d] [%s] [%d]\n",
errno, strerror(errno), IO->SendBuf.fd);
StrBufPrintf(IO->ErrMsg,
"Socket Invalid! [%s]",
strerror(errno));
SetNextTimeout(IO, 0.01);
}
}
/* else : must write more. */
}
/*
* Before allowing a wiki page save to execute, we have to perform version control.
* This involves fetching the old version of the page if it exists.
*/
int wiki_upload_beforesave(struct CtdlMessage *msg, recptypes *recp) {
struct CitContext *CCC = CC;
long old_msgnum = (-1L);
struct CtdlMessage *old_msg = NULL;
long history_msgnum = (-1L);
struct CtdlMessage *history_msg = NULL;
char diff_old_filename[PATH_MAX];
char diff_new_filename[PATH_MAX];
char diff_out_filename[PATH_MAX];
char diff_cmd[PATH_MAX];
FILE *fp;
int rv;
char history_page[1024];
long history_page_len;
char boundary[256];
char prefixed_boundary[258];
char buf[1024];
char *diffbuf = NULL;
size_t diffbuf_len = 0;
char *ptr = NULL;
long newmsgid;
StrBuf *msgidbuf;
if (!CCC->logged_in) return(0); /* Only do this if logged in. */
/* Is this a room with a Wiki in it, don't run this hook. */
if ((CCC->room.QRdefaultview != VIEW_WIKI) &&
(CCC->room.QRdefaultview != VIEW_WIKIMD)) {
return(0);
}
/* If this isn't a MIME message, don't bother. */
if (msg->cm_format_type != 4) return(0);
/* If there's no EUID we can't do this. Reject the post. */
if (CM_IsEmpty(msg, eExclusiveID)) return(1);
newmsgid = get_new_message_number();
msgidbuf = NewStrBuf();
StrBufPrintf(msgidbuf, "%08lX-%08lX@%s/%s",
(long unsigned int) time(NULL),
(long unsigned int) newmsgid,
CtdlGetConfigStr("c_fqdn"),
msg->cm_fields[eExclusiveID]
);
CM_SetAsFieldSB(msg, emessageId, &msgidbuf);
history_page_len = snprintf(history_page, sizeof history_page,
"%s_HISTORY_", msg->cm_fields[eExclusiveID]);
/* Make sure we're saving a real wiki page rather than a wiki history page.
* This is important in order to avoid recursing infinitely into this hook.
*/
if ( (msg->cm_lengths[eExclusiveID] >= 9)
&& (!strcasecmp(&msg->cm_fields[eExclusiveID][msg->cm_lengths[eExclusiveID]-9], "_HISTORY_"))
) {
syslog(LOG_DEBUG, "History page not being historied\n");
return(0);
}
/* If there's no message text, obviously this is all b0rken and shouldn't happen at all */
if (CM_IsEmpty(msg, eMesageText)) return(0);
/* Set the message subject identical to the page name */
CM_CopyField(msg, eMsgSubject, eExclusiveID);
/* See if we can retrieve the previous version. */
old_msgnum = CtdlLocateMessageByEuid(msg->cm_fields[eExclusiveID], &CCC->room);
if (old_msgnum > 0L) {
old_msg = CtdlFetchMessage(old_msgnum, 1, 1);
}
else {
old_msg = NULL;
}
if ((old_msg != NULL) && (CM_IsEmpty(old_msg, eMesageText))) { /* old version is corrupt? */
CM_Free(old_msg);
old_msg = NULL;
}
/* If no changes were made, don't bother saving it again */
if ((old_msg != NULL) && (!strcmp(msg->cm_fields[eMesageText], old_msg->cm_fields[eMesageText]))) {
CM_Free(old_msg);
return(1);
}
/*
* Generate diffs
*/
CtdlMakeTempFileName(diff_old_filename, sizeof diff_old_filename);
CtdlMakeTempFileName(diff_new_filename, sizeof diff_new_filename);
CtdlMakeTempFileName(diff_out_filename, sizeof diff_out_filename);
if (old_msg != NULL) {
fp = fopen(diff_old_filename, "w");
rv = fwrite(old_msg->cm_fields[eMesageText], old_msg->cm_lengths[eMesageText], 1, fp);
fclose(fp);
CM_Free(old_msg);
}
fp = fopen(diff_new_filename, "w");
rv = fwrite(msg->cm_fields[eMesageText], msg->cm_lengths[eMesageText], 1, fp);
fclose(fp);
snprintf(diff_cmd, sizeof diff_cmd,
DIFF " -u %s %s >%s",
diff_new_filename,
((old_msg != NULL) ? diff_old_filename : "/dev/null"),
diff_out_filename
);
syslog(LOG_DEBUG, "diff cmd: %s", diff_cmd);
rv = system(diff_cmd);
syslog(LOG_DEBUG, "diff cmd returned %d", rv);
diffbuf_len = 0;
diffbuf = NULL;
fp = fopen(diff_out_filename, "r");
if (fp == NULL) {
fp = fopen("/dev/null", "r");
}
if (fp != NULL) {
fseek(fp, 0L, SEEK_END);
diffbuf_len = ftell(fp);
fseek(fp, 0L, SEEK_SET);
diffbuf = malloc(diffbuf_len + 1);
fread(diffbuf, diffbuf_len, 1, fp);
diffbuf[diffbuf_len] = '\0';
fclose(fp);
}
syslog(LOG_DEBUG, "diff length is "SIZE_T_FMT" bytes", diffbuf_len);
unlink(diff_old_filename);
unlink(diff_new_filename);
unlink(diff_out_filename);
/* Determine whether this was a bogus (empty) edit */
if ((diffbuf_len = 0) && (diffbuf != NULL)) {
free(diffbuf);
diffbuf = NULL;
}
if (diffbuf == NULL) {
return(1); /* No changes at all? Abandon the post entirely! */
}
/* Now look for the existing edit history */
history_msgnum = CtdlLocateMessageByEuid(history_page, &CCC->room);
history_msg = NULL;
if (history_msgnum > 0L) {
history_msg = CtdlFetchMessage(history_msgnum, 1, 1);
}
/* Create a new history message if necessary */
if (history_msg == NULL) {
char *buf;
long len;
history_msg = malloc(sizeof(struct CtdlMessage));
memset(history_msg, 0, sizeof(struct CtdlMessage));
history_msg->cm_magic = CTDLMESSAGE_MAGIC;
history_msg->cm_anon_type = MES_NORMAL;
history_msg->cm_format_type = FMT_RFC822;
CM_SetField(history_msg, eAuthor, HKEY("Citadel"));
if (!IsEmptyStr(CCC->room.QRname)){
CM_SetField(history_msg, eRecipient, CCC->room.QRname, strlen(CCC->room.QRname));
}
CM_SetField(history_msg, eExclusiveID, history_page, history_page_len);
CM_SetField(history_msg, eMsgSubject, history_page, history_page_len);
CM_SetField(history_msg, eSuppressIdx, HKEY("1")); /* suppress full text indexing */
snprintf(boundary, sizeof boundary, "Citadel--Multipart--%04x--%08lx", getpid(), time(NULL));
buf = (char*) malloc(1024);
len = snprintf(buf, 1024,
"Content-type: multipart/mixed; boundary=\"%s\"\n\n"
"This is a Citadel wiki history encoded as multipart MIME.\n"
"Each part is comprised of a diff script representing one change set.\n"
"\n"
"--%s--\n",
boundary, boundary
);
CM_SetAsField(history_msg, eMesageText, &buf, len);
}
/* Update the history message (regardless of whether it's new or existing) */
/* Remove the Message-ID from the old version of the history message. This will cause a brand
* new one to be generated, avoiding an uninitentional hit of the loop zapper when we replicate.
*/
CM_FlushField(history_msg, emessageId);
/* Figure out the boundary string. We do this even when we generated the
* boundary string in the above code, just to be safe and consistent.
*/
*boundary = '\0';
ptr = history_msg->cm_fields[eMesageText];
do {
ptr = memreadline(ptr, buf, sizeof buf);
if (*ptr != 0) {
striplt(buf);
if (!IsEmptyStr(buf) && (!strncasecmp(buf, "Content-type:", 13))) {
if (
(bmstrcasestr(buf, "multipart") != NULL)
&& (bmstrcasestr(buf, "boundary=") != NULL)
) {
safestrncpy(boundary, bmstrcasestr(buf, "\""), sizeof boundary);
char *qu;
qu = strchr(boundary, '\"');
if (qu) {
strcpy(boundary, ++qu);
}
qu = strchr(boundary, '\"');
if (qu) {
*qu = 0;
}
}
}
}
} while ( (IsEmptyStr(boundary)) && (*ptr != 0) );
/*
* Now look for the first boundary. That is where we need to insert our fun.
*/
if (!IsEmptyStr(boundary)) {
char *MsgText;
long MsgTextLen;
time_t Now = time(NULL);
snprintf(prefixed_boundary, sizeof(prefixed_boundary), "--%s", boundary);
CM_GetAsField(history_msg, eMesageText, &MsgText, &MsgTextLen);
ptr = bmstrcasestr(MsgText, prefixed_boundary);
if (ptr != NULL) {
StrBuf *NewMsgText;
char uuid[64];
char memo[512];
long memolen;
char encoded_memo[1024];
NewMsgText = NewStrBufPlain(NULL, MsgTextLen + diffbuf_len + 1024);
generate_uuid(uuid);
memolen = snprintf(memo, sizeof(memo), "%s|%ld|%s|%s",
uuid,
Now,
CCC->user.fullname,
CtdlGetConfigStr("c_nodename"));
memolen = CtdlEncodeBase64(encoded_memo, memo, memolen, 0);
StrBufAppendBufPlain(NewMsgText, HKEY("--"), 0);
StrBufAppendBufPlain(NewMsgText, boundary, -1, 0);
StrBufAppendBufPlain(
NewMsgText,
HKEY("\n"
"Content-type: text/plain\n"
"Content-Disposition: inline; filename=\""), 0);
StrBufAppendBufPlain(NewMsgText, encoded_memo, memolen, 0);
StrBufAppendBufPlain(
NewMsgText,
HKEY("\"\n"
"Content-Transfer-Encoding: 8bit\n"
"\n"), 0);
StrBufAppendBufPlain(NewMsgText, diffbuf, diffbuf_len, 0);
StrBufAppendBufPlain(NewMsgText, HKEY("\n"), 0);
StrBufAppendBufPlain(NewMsgText, ptr, MsgTextLen - (ptr - MsgText), 0);
free(MsgText);
CM_SetAsFieldSB(history_msg, eMesageText, &NewMsgText);
}
else
{
CM_SetAsField(history_msg, eMesageText, &MsgText, MsgTextLen);
}
CM_SetFieldLONG(history_msg, eTimestamp, Now);
CtdlSubmitMsg(history_msg, NULL, "", 0);
}
else {
syslog(LOG_ALERT, "Empty boundary string in history message. No history!\n");
}
free(diffbuf);
CM_Free(history_msg);
return(0);
}
int smtp_aftersave(struct CtdlMessage *msg,
recptypes *recps)
{
/* For internet mail, generate delivery instructions.
* Yes, this is recursive. Deal with it. Infinite recursion does
* not happen because the delivery instructions message does not
* contain a recipient.
*/
if ((recps != NULL) && (recps->num_internet > 0)) {
struct CtdlMessage *imsg = NULL;
char recipient[SIZ];
CitContext *CCC = MyContext();
StrBuf *SpoolMsg = NewStrBuf();
long nTokens;
int i;
MSGM_syslog(LOG_DEBUG, "Generating delivery instructions\n");
StrBufPrintf(SpoolMsg,
"Content-type: "SPOOLMIME"\n"
"\n"
"msgid|%s\n"
"submitted|%ld\n"
"bounceto|%s\n",
msg->cm_fields[eVltMsgNum],
(long)time(NULL),
recps->bounce_to);
if (recps->envelope_from != NULL) {
StrBufAppendBufPlain(SpoolMsg, HKEY("envelope_from|"), 0);
StrBufAppendBufPlain(SpoolMsg, recps->envelope_from, -1, 0);
StrBufAppendBufPlain(SpoolMsg, HKEY("\n"), 0);
}
if (recps->sending_room != NULL) {
StrBufAppendBufPlain(SpoolMsg, HKEY("source_room|"), 0);
StrBufAppendBufPlain(SpoolMsg, recps->sending_room, -1, 0);
StrBufAppendBufPlain(SpoolMsg, HKEY("\n"), 0);
}
nTokens = num_tokens(recps->recp_internet, '|');
for (i = 0; i < nTokens; i++) {
long len;
len = extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
if (len > 0) {
StrBufAppendBufPlain(SpoolMsg, HKEY("remote|"), 0);
StrBufAppendBufPlain(SpoolMsg, recipient, len, 0);
StrBufAppendBufPlain(SpoolMsg, HKEY("|0||\n"), 0);
}
}
imsg = malloc(sizeof(struct CtdlMessage));
memset(imsg, 0, sizeof(struct CtdlMessage));
imsg->cm_magic = CTDLMESSAGE_MAGIC;
imsg->cm_anon_type = MES_NORMAL;
imsg->cm_format_type = FMT_RFC822;
CM_SetField(imsg, eMsgSubject, HKEY("QMSG"));
CM_SetField(imsg, eAuthor, HKEY("Citadel"));
CM_SetField(imsg, eJournal, HKEY("do not journal"));
CM_SetAsFieldSB(imsg, eMesageText, &SpoolMsg);
CtdlSubmitMsg(imsg, NULL, SMTP_SPOOLOUT_ROOM, QP_EADDR);
CM_Free(imsg);
}
return 0;
}
/*
* smtp_do_bounce() is caled by smtp_do_procmsg() to scan a set of delivery
* instructions for "5" codes (permanent fatal errors) and produce/deliver
* a "bounce" message (delivery status notification).
*/
void smtpq_do_bounce(OneQueItem *MyQItem, StrBuf *OMsgTxt, ParsedURL *Relay)
{
static int seq = 0;
struct CtdlMessage *bmsg = NULL;
StrBuf *boundary;
StrBuf *Msg = NULL;
StrBuf *BounceMB;
recptypes *valid;
time_t now;
HashPos *It;
void *vQE;
long len;
const char *Key;
int first_attempt = 0;
int successful_bounce = 0;
int num_bounces = 0;
int give_up = 0;
SMTPCM_syslog(LOG_DEBUG, "smtp_do_bounce() called\n");
if (MyQItem->SendBounceMail == 0)
return;
now = time (NULL); //ev_time();
if ( (now - MyQItem->Submitted) > SMTP_GIVE_UP ) {
give_up = 1;
}
if (MyQItem->Retry == SMTP_RETRY_INTERVAL) {
first_attempt = 1;
}
/*
* Now go through the instructions checking for stuff.
*/
Msg = NewStrBufPlain(NULL, 1024);
It = GetNewHashPos(MyQItem->MailQEntries, 0);
while (GetNextHashPos(MyQItem->MailQEntries, It, &len, &Key, &vQE))
{
MailQEntry *ThisItem = vQE;
if ((ThisItem->Active && (ThisItem->Status == 5)) || /* failed now? */
((give_up == 1) && (ThisItem->Status != 2)) ||
((first_attempt == 1) && (ThisItem->Status != 2)))
/* giving up after failed attempts... */
{
++num_bounces;
StrBufAppendBufPlain(Msg, HKEY(" "), 0);
StrBufAppendBuf(Msg, ThisItem->Recipient, 0);
StrBufAppendBufPlain(Msg, HKEY(": "), 0);
if (ThisItem->AllStatusMessages != NULL)
StrBufAppendBuf(Msg, ThisItem->AllStatusMessages, 0);
else
StrBufAppendBuf(Msg, ThisItem->StatusMessage, 0);
StrBufAppendBufPlain(Msg, HKEY("\r\n"), 0);
}
}
DeleteHashPos(&It);
/* Deliver the bounce if there's anything worth mentioning */
SMTPC_syslog(LOG_DEBUG, "num_bounces = %d\n", num_bounces);
if (num_bounces == 0) {
FreeStrBuf(&Msg);
return;
}
if ((StrLength(MyQItem->SenderRoom) == 0) && MyQItem->HaveRelay) {
const char *RelayUrlStr = "[not found]";
/* one message that relaying is broken is enough; no extra room error message. */
StrBuf *RelayDetails = NewStrBuf();
if (Relay != NULL)
RelayUrlStr = ChrPtr(Relay->URL);
StrBufPrintf(RelayDetails,
"Relaying via %s failed permanently. \n Reason:\n%s\n Revalidate your relay configuration.",
RelayUrlStr,
ChrPtr(Msg));
CtdlAideMessage(ChrPtr(RelayDetails), "Relaying Failed");
FreeStrBuf(&RelayDetails);
}
boundary = NewStrBufPlain(HKEY("=_Citadel_Multipart_"));
StrBufAppendPrintf(boundary,
"%s_%04x%04x",
CtdlGetConfigStr("c_fqdn"),
getpid(),
++seq);
/* Start building our bounce message; go shopping for memory first. */
BounceMB = NewStrBufPlain(
NULL,
1024 + /* mime stuff.... */
StrLength(Msg) + /* the bounce information... */
StrLength(OMsgTxt)); /* the original message */
if (BounceMB == NULL) {
FreeStrBuf(&boundary);
SMTPCM_syslog(LOG_ERR, "Failed to alloc() bounce message.\n");
return;
}
bmsg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
if (bmsg == NULL) {
FreeStrBuf(&boundary);
FreeStrBuf(&BounceMB);
SMTPCM_syslog(LOG_ERR, "Failed to alloc() bounce message.\n");
return;
}
memset(bmsg, 0, sizeof(struct CtdlMessage));
StrBufAppendBufPlain(BounceMB, HKEY("Content-type: multipart/mixed; boundary=\""), 0);
StrBufAppendBuf(BounceMB, boundary, 0);
StrBufAppendBufPlain(BounceMB, HKEY("\"\r\n"), 0);
StrBufAppendBufPlain(BounceMB, HKEY("MIME-Version: 1.0\r\n"), 0);
StrBufAppendBufPlain(BounceMB, HKEY("X-Mailer: " CITADEL "\r\n"), 0);
StrBufAppendBufPlain(BounceMB, HKEY("\r\nThis is a multipart message in MIME format.\r\n\r\n"), 0);
StrBufAppendBufPlain(BounceMB, HKEY("--"), 0);
StrBufAppendBuf(BounceMB, boundary, 0);
StrBufAppendBufPlain(BounceMB, HKEY("\r\n"), 0);
StrBufAppendBufPlain(BounceMB, HKEY("Content-type: text/plain\r\n\r\n"), 0);
if (give_up)
StrBufAppendBufPlain(
BounceMB,
HKEY(
"A message you sent could not be delivered "
"to some or all of its recipients\n"
"due to prolonged unavailability "
"of its destination(s).\n"
"Giving up on the following addresses:\n\n"
), 0);
else
StrBufAppendBufPlain(
BounceMB,
HKEY(
"A message you sent could not be delivered "
"to some or all of its recipients.\n"
"The following addresses "
"were undeliverable:\n\n"
), 0);
StrBufAppendBuf(BounceMB, Msg, 0);
FreeStrBuf(&Msg);
if (StrLength(MyQItem->SenderRoom) > 0)
{
StrBufAppendBufPlain(
BounceMB,
HKEY("The message was originaly posted in: "), 0);
StrBufAppendBuf(BounceMB, MyQItem->SenderRoom, 0);
StrBufAppendBufPlain(
BounceMB,
HKEY("\n"), 0);
}
/* Attach the original message */
StrBufAppendBufPlain(BounceMB, HKEY("\r\n--"), 0);
StrBufAppendBuf(BounceMB, boundary, 0);
StrBufAppendBufPlain(BounceMB, HKEY("\r\n"), 0);
StrBufAppendBufPlain(BounceMB,
HKEY("Content-type: message/rfc822\r\n"), 0);
StrBufAppendBufPlain(BounceMB,
HKEY("Content-Transfer-Encoding: 7bit\r\n"), 0);
StrBufAppendBufPlain(BounceMB,
HKEY("Content-Disposition: inline\r\n"), 0);
StrBufAppendBufPlain(BounceMB, HKEY("\r\n"), 0);
StrBufAppendBuf(BounceMB, OMsgTxt, 0);
/* Close the multipart MIME scope */
StrBufAppendBufPlain(BounceMB, HKEY("--"), 0);
StrBufAppendBuf(BounceMB, boundary, 0);
StrBufAppendBufPlain(BounceMB, HKEY("--\r\n"), 0);
bmsg->cm_magic = CTDLMESSAGE_MAGIC;
bmsg->cm_anon_type = MES_NORMAL;
bmsg->cm_format_type = FMT_RFC822;
CM_SetField(bmsg, eOriginalRoom, HKEY(MAILROOM));
CM_SetField(bmsg, eAuthor, HKEY("Citadel"));
CM_SetField(bmsg, eNodeName, CtdlGetConfigStr("c_nodename"), strlen(CtdlGetConfigStr("c_nodename")));
CM_SetField(bmsg, eMsgSubject, HKEY("Delivery Status Notification (Failure)"));
CM_SetAsFieldSB(bmsg, eMesageText, &BounceMB);
/* First try the user who sent the message */
if (StrLength(MyQItem->BounceTo) == 0) {
SMTPCM_syslog(LOG_ERR, "No bounce address specified\n");
}
else {
SMTPC_syslog(LOG_DEBUG, "bounce to user? <%s>\n",
ChrPtr(MyQItem->BounceTo));
}
/* Can we deliver the bounce to the original sender? */
valid = validate_recipients(ChrPtr(MyQItem->BounceTo), NULL, 0);
if ((valid != NULL) && (valid->num_error == 0)) {
CtdlSubmitMsg(bmsg, valid, "", QP_EADDR);
successful_bounce = 1;
}
/* If not, post it in the Aide> room */
if (successful_bounce == 0) {
CtdlSubmitMsg(bmsg, NULL, CtdlGetConfigStr("c_aideroom"), QP_EADDR);
}
/* Free up the memory we used */
free_recipients(valid);
FreeStrBuf(&boundary);
CM_Free(bmsg);
SMTPCM_syslog(LOG_DEBUG, "Done processing bounces\n");
}
