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psyced/world/net/pop/server.c

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// $Id: server.c,v 1.14 2008/01/05 13:44:39 lynx Exp $ // vim:syntax=lpc
//
// pop3 implementation for using psyc with mails. experimental.
//
#include <net.h>
#include <text.h>
#include <person.h>
#define NO_INHERIT
#include <server.h>
inherit NET_PATH "lastlog";
//inherit NET_PATH "name";
//inherit NET_PATH "common";
volatile string nick, password;
volatile object user;
volatile array(mixed) log;
volatile array(string) rendered;
volatile mapping message;
qScheme() { return "pop3"; }
parse(a) {
string cmd, fullargs;
string *args;
unless (sscanf(a, "%s%t%s", cmd, fullargs)) cmd = a;
if (fullargs) args = explode(fullargs, " ");
if (log) pop3cmd(cmd, args); else authenticate(cmd, args);
input_to(#'parse, INPUT_IGNORE_BANG);
}
pop3cmd(cmd, args) {
# define MSG_QUIT "Hope to see you again."
# define MSG_UNKNOWN "Command not recognized."
# define MSG_WRONGMSGID "No such message."
P2(("pop3cmd %s %O\n", cmd, args));
int i;
switch(cmd = upper_case(cmd)) {
case "HELP":
write("+OK This is POP3. What else do you need to know?"
#if HAS_PORT(POP3_PORT, POP3_PATH)
" Plain on "+POP3_PORT+"."
#endif
#if HAS_PORT(POP3S_PORT, POP3_PATH)
" Encrypted by SSL on "+POP3S_PORT+"."
#endif
"\n");
break;
case "LIST":
write("+OK\n");
// if list is supposed to show all messages, why
// are you looking at "new" ?
if(user->vQuery("new")) {
for(i=0;i<user->vQuery("new");i++) {
// 1234?? TODO is presume
write(i+"_"+RANDHEXSTRING+RANDHEXSTRING+"@"+SERVER_HOST+" 1234\n"); // <MsgID> <Byte>
}
}
write(".\n"); // .
break;
case "STAT":
if(user->vQuery("new")) {
for(i=0;i<user->vQuery("new");i++) {
// render each msg so we can output its real length..
write("+OK "+i+"_"+RANDHEXSTRING+RANDHEXSTRING+"@"+SERVER_HOST+" 1234\n"); // +OK <MsgID> <Byte>
}
} else {
write("+OK 0 0\n");
}
break;
case "RETR":
if (sizeof(args) == 1) {
i = to_int(args[0])-1; // log starts at 0
// check rendered first?
array(mixed) p = logPick(i);
if (p) {
write("+OK Here we go..\n");
//printf("Temporary: %O", p);
write(psyctext( T(p[1], ""), p[3],
p[2], p[0] ));
write("\n.\n");
// löschen. im gegensatz zu email-servern werden nachrichten nicht aufgehoben.
//delete(msgid);
} else {
write("-ERR "+MSG_WRONGMSGID+"\n");
}
} else {
write("-ERR Which message do you want?\n");
}
break;
case "DELE": // braucht man das? geht das überhaupt?
if (sizeof(args) == 1) {
if(1) { // wenn msg mit id existiert
write("+OK Message tagged for deletion.\n");
//delete(msgid);
} else {
write("-ERR "+MSG_WRONGMSGID+"\n");
}
} else {
write("-ERR Which message do you want to delete?\n");
}
break;
case "RSET": // alle mails, die zum löschen markiert waren, wieder als nicht gelöscht taggen
// (gelöscht wird erst nach trennung nach 'DELE').
write("+OK Deletion aborted.\n");
break;
case "CAPA":
write("+OK\n");
write("HELP\nLIST\nSTAT\nRETR\nDELE\nRSET\nCAPA\nNOOP\nQUIT\n");
write(".\n");
break;
case "QUIT":
write("+OK "+MSG_QUIT+"\n");
QUIT;
case "NOOP":
write("+OK Don't do this often, you should know what you want.\n");
break;
default:
write("-ERR "+MSG_UNKNOWN+"\n");
}
}
authenticate(cmd, args) {
object palo;
P2(("pop3auth %s %O\n", cmd, args));
switch(cmd = upper_case(cmd)) {
case "USER":
if (sizeof(args) == 1) {
//if(!nick) { // sucks in some clients..
//palo = find_person(args[0]);
palo = summon_person(args[0]);
if (palo && !palo->isNewbie()) {
nick = args[0];
write("+OK Username ok.\n");
} else {
write("-ERR User "+args[0]+" is not registered.\n");
}
//} else {
// write("-ERR You are already identified as "+nick+".\n");
//}
} else {
write("-ERR I need your username.\n");
}
break;
case "PASS":
if (sizeof(args) == 1) {
if(!password) {
#ifdef ASYNC_AUTH
mixed authCb;
user = find_person(nick);
authCb = CLOSURE((int result), (), (),
{
unless(result) {
write("-ERR Login failed. Wrong password?\n");
} else if (log = user -> logQuery()) {
if (log) logInit(copy(log));
write("+OK Successfully logged in.\n");
sTextPath(0, user->vQuery("language"), "pop3");
} else {
write("-ERR Login failed. No messages available.\n");
}
return 1;
});
user -> checkPassword(args[0], 0, 0, 0, authCb);
#else
write("-ERR ASYNC AUTH necessary.\n");
#endif
} else {
write("-ERR You are already logged in.\n");
}
} else {
write("-ERR There are NO empty passwords.\n");
}
break;
case "CAPA":
write("+OK\n");
if (!nick) write("USER\n");
else if (!password) write("PASS\n");
write("CAPA\nQUIT\n.\n");
break;
case "QUIT":
write("+OK "+MSG_QUIT+"\n");
QUIT;
case "TEST":
break;
default:
write("-ERR "+MSG_UNKNOWN+"\n");
}
}
logon() {
write("+OK Welcome to the POP3 implementation in PSYC on " SERVER_HOST ".\n");
next_input_to(#'parse);
}