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psyced/world/net/smtp/outgoing.c
psyc://psyced.org/~lynX 69c1a1e2f5 smtp_sendmsg()
2010-01-31 06:35:49 +01:00

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// outgoing mail queue for psyced.
// i *could* rewrite this to use net/spool.c
// but then i'd have such a mess in my room
#include <net.h>
#include <text.h>
virtual inherit NET_PATH "output";
#define MAX_SPOOL 23
#define SPOOL_FILE DATA_PATH "mail_queue"
#if defined(DEBUG) && DEBUG > 1
# define QUEUE_POLL_TIME 9
# define COLLECT_TIME 15
# define CONNECT_RETRY 99
#else
# define QUEUE_POLL_TIME 33
# define COLLECT_TIME 60 * 2
# define CONNECT_RETRY 60 * 7
#endif
#ifndef DEFAULT_MAIL_SENDER
# define DEFAULT_MAIL_SENDER "psyc-daemon@" SERVER_HOST
#endif
#ifndef DEFAULT_MAIL_SENDER_NAME
# define DEFAULT_MAIL_SENDER_NAME "PSYC server on " SERVER_HOST
#endif
#ifndef DEFAULT_MAIL_SUBJECT
# define DEFAULT_MAIL_SUBJECT "Messages for [_target]"
#endif
#ifndef SMTP_RELAY
# define SMTP_RELAY "127.0.0.1"
#endif
#define S_OFF 0
#define S_CONN 101
#define S_READY 102
#define S_SOML 103
#define S_FROM 104
#define S_TO 105
#define S_DATA 106
#define S_MESS 107
#define S_DONE 108
#define FILE_FORMAT 0
#define Q_SOURCE 0
#define Q_METHOD 1
#define Q_DATA 2
#define Q_VARS 3
#define Q_TARGET 4
#define Q_URL_LOGIN 5
//#define Q_SENDER 99
mapping spool;
int time_of_connect_attempt;
int file_format;
#ifdef Q_SENDER
static string sndr;
#else
# define sndr DEFAULT_MAIL_SENDER
#endif
static string rcpt, target;
static int state;
#ifdef OFFLINE
# define mwrite(TEXT) D(TEXT)
#else
# if defined(DEBUG) && DEBUG > 1
mwrite(str) { log_file("SENDMAIL", str); emit(str); }
# else
# define mwrite(TEXT) emit(TEXT)
# endif
#endif
reset(a) {
// if (a) {
#ifndef OFFLINE
P2(("RESET: saving mail queue into "+ SPOOL_FILE +"\n"))
save_object(SPOOL_FILE);
#endif
// return;
// }
}
create() {
#ifdef DEFAULT_LAYOUT
sTextPath (DEFAULT_LAYOUT, DEFLANG, "smtp");
#else
sTextPath (0, 0, "smtp");
#endif
unless (spool) {
restore_object(SPOOL_FILE);
if (file_format != FILE_FORMAT) spool = 0;
}
D2( if (spool) log_file("SENDMAIL", "*** Restored spool %O\n",
spool && m_indices(spool) ); )
file_format = FILE_FORMAT;
if (spool) qjack(1);
}
load() { return ME; }
static connect() {
#ifndef OFFLINE
if (interactive()) return 1;
// could this be using net/connect?
if (time() > time_of_connect_attempt + CONNECT_RETRY) {
int res;
time_of_connect_attempt = time();
save_object(SPOOL_FILE);
D1( D("SMTP: attempting connect to "+SMTP_RELAY+"\n"); )
if (res = net_connect(SMTP_RELAY, 25)) {
D0(D("SMTP connect error #"+ res
+" to " SMTP_RELAY ".\n");)
log_file("SENDMAIL", "*** No connect ("+res+") at "+
ctime(time())+"\n");
return 0;
}
state=S_CONN;
return 1;
}
return 0;
#endif
}
// called from smtp_sendmsg()
// this doesn't support the user's aliases, but doing so pretty
// much means a major architectural change.. or a dirty ->aliasresolve()
enqueue(target, method, data, vars, source, rcpt, urllogin) {
int i = 0;
// gets checked in /set and mailto:
#ifdef BRAIN
// but we check again since brain has old user files
// with unchecked adresses
unless (rcpt = legal_mailto(rcpt)) return 0;
#endif
PT(("smtp/enqueue: from %O to %O (%O)\n", source, target, rcpt))
unless (spool) {
spool = ([]);
call_out("qjack", COLLECT_TIME, 1);
}
if (spool[rcpt]) {
i = spool[rcpt][1]++;
if (i >= MAX_SPOOL) return 0;
spool[rcpt][i] = ({
source, method, data, vars, target, urllogin });
} else {
spool[rcpt] = allocate(MAX_SPOOL);
spool[rcpt][1] = 3;
if (objectp(target)) target = psyc_name(target);
spool[rcpt][2] = ({
source, method, data, vars, target, urllogin });
}
spool[rcpt][0] = COLLECT_TIME + time();
return connect();
}
qjack(arg) {
unless (spool) return;
if (arg) call_out("qjack", QUEUE_POLL_TIME, arg+1);
#ifndef OFFLINE
unless (interactive()) return connect();
D2( D("jacking Q: "+ state + ", idle "+ query_idle(ME) + "\n"); )
unless (state == S_READY) return 0;
#endif
foreach(rcpt : spool) {
if (spool[rcpt][0] < time()) {
#ifdef OFFLINE
rendermsg(rcpt);
done();
#else
target = spool[rcpt][2][Q_TARGET];
// if (objectp(target)) target = psyc_name(target);
# ifdef Q_SENDER
// do we want them to downgrade communication to email?
sndr = spool[rcpt][2][Q_SENDER];
unless (sndr) sndr = DEFAULT_MAIL_SENDER;
# endif
mwrite("SOML FROM: <"+sndr+">\n");
state = S_SOML;
#endif
return 1;
}
}
D2( D("nothing ready yet\n"); )
}
static done() {
unless (spool) return;
m_delete(spool, rcpt);
if (sizeof(spool) == 0) spool = 0;
#ifndef OFFLINE
D2( save_object(SPOOL_FILE); )
#endif
}
static abort(code, msg) {
done(); // we cannot risk to have this person block outgoing mail
#ifdef PRO_PATH
sendmsg(query_monitor_unl(), "_error_transaction_mail_monitor",
"Received [_code_smtp] '[_text_smtp]' while delivering to [_recipient_mailto] ([_recipient]).", ([
"_code_smtp": code, "_text_smtp": msg,
"_recipient_mailto" : "mailto:"+rcpt,
"_recipient" : target ]) );
#endif
mwrite("QUIT\n"); // restart mailer connection (not necessary?)
state=S_DONE;
}
parse(str) {
int code;
string msg;
input_to(#'parse);
if (str) {
D2( log_file("SENDMAIL", "« "+ str+"\n"); )
if (sscanf(str, "%d%t%s", code, msg) !=2)
sscanf(str, "%d",code);
}
if (!code) code=250; // is this smart?
switch(state) {
case S_CONN:
state=S_READY;
mwrite("HELO " SERVER_HOST "\n");
break;
case S_READY:
if (code!=250) abort(code, msg);
else qjack(0);
break;
case S_SOML:
if (code!=250) {
P3(("SOML to %O returns %s\n", query_ip_number(), str))
state = S_FROM;
mwrite("MAIL FROM: <"+sndr+">\n");
break;
}
// else we were successful, so let's fall thru
P0(("Yoohoo! %O is a mailer who understands SOML!\n",
query_ip_number()))
case S_FROM:
state=S_TO;
if (code!=250) abort(code, msg);
else mwrite("RCPT TO: <"+rcpt+">\n");
break;
case S_TO:
state=S_DATA;
if (code!=250) abort(code, msg);
else mwrite("DATA\n");
break;
case S_DATA:
state=S_MESS;
if (code!=354) abort(code, msg);
else rendermsg(rcpt);
break;
case S_MESS:
state=S_READY;
if (code!=250) abort(code, msg);
done();
break;
case S_DONE:
// 221 2.0.0 fly.symlynX.com closing connection
state=S_OFF;
break;
case S_OFF:
remove_interactive(ME);
D2(D("SMTP had to force connection close: "+str+"\n");)
break;
default:
D2(D("SMTP should not get here: "+state+"\n");)
}
}
w(string mc, string data, mapping vars, mixed source) {
string output, nick = 0;
string template = T(mc, "");
// source can be 0
if (stringp(source) && mappingp(vars)) nick = psyctext(
T("_MISC_identification_remote",
"<[_source]> [_nick]"), ([
"_source":source,
"_nick": (vars["_nick_verbatim"] || vars["_nick"])
]));
output = psyctext( template, vars, data, source, nick );
P3(("SMTP:w(%O,%O,%O,%O) - %O\n", mc,data,vars,source, template))
if (template == "") output += abbrev("_prefix", mc) ? " " : "\n";
return output;
}
// TODO: to be formally correct all umlauts in the header would have to
// be escaped with that ugly embedded encoding trick. do we care?
rendermsg(rcpt) {
string m, t2;
int i, l, o, t;
mwrite("From: " DEFAULT_MAIL_SENDER " ("
DEFAULT_MAIL_SENDER_NAME ")\n");
l = spool[rcpt][1];
if (l > MAX_SPOOL) {
o = l - MAX_SPOOL;
mwrite("X-Amount-Messages-Omitted: "+ o +"\n");
l = MAX_SPOOL;
}
for (i=2; i<l; i++) {
unless (m) {
// m = spool[rcpt][i][Q_DATA];
m = w( spool[rcpt][i][Q_METHOD],
spool[rcpt][i][Q_DATA],
spool[rcpt][i][Q_VARS],
spool[rcpt][i][Q_SOURCE] );
mwrite("To: "+rcpt+" ("+ target +")\n");
// psyc_name(spool[rcpt][i][Q_TARGET])
t = index(m, '\n');
// PP(("smtp-out: %d == %d ? %s", t, strlen(m), m));
#ifdef SEND_FIRST_MSG_AS_SUBJECT
if (t+1 == strlen(m)) mwrite("Subject: "+m);
else mwrite("Subject: "+m[..t]);
#endif
} else
m += w( spool[rcpt][i][Q_METHOD],
spool[rcpt][i][Q_DATA],
spool[rcpt][i][Q_VARS],
spool[rcpt][i][Q_SOURCE] );
//m += "\n" + spool[rcpt][i][Q_DATA];
//D("m is -"+m+"-\n");
unless (t2) t2 = spool[rcpt][i][Q_URL_LOGIN];
}
// mwrite("Date:\t"+mctime(time())+"\n");
// mwrite("X-Mailer: psycMUVE eMail Gateway\n");
// mwrite("X-Chatter: "+src->qName()+"\n");
//write("Reply-To: "+sndr+"."+lower_case(CHATNAME)+"@"+SMTP_RELAY+"\n");
if (o) m += w("_warning_omitted_messages",
"[_amount_messages_omitted] messages omitted.",
([ "_amount_messages_omitted" : o ]) );
#ifdef DEFAULT_URL_LOGIN
# ifndef _flag_disable_mail_signature
m += "\n--\n"+ w( "_info_mail_signature", "Reply by E-Mail is not possible. Please log in:\n[_URL_login]",
([ "_URL_login": (t2 || DEFAULT_URL_LOGIN) ]) ) + "\n";
# endif
#endif
t2 = "Content-Type: text/plain; charset=" SYSTEM_CHARSET "\n"
#ifndef SEND_FIRST_MSG_AS_SUBJECT
"Subject: "+ w("_info_mail_subject", DEFAULT_MAIL_SUBJECT,
([ "_target": target || rcpt || ME ]) ) +
#endif
"Content-Length: "+( strlen(m) )+"\n"
"\n"+ m +".\n";
mwrite(t2);
}
logon() { input_to(#'parse); }
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