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psyced/world/net/jabber/component.c

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2009-01-26 20:12:53 +00:00
// $Id: component.c,v 1.72 2008/10/01 10:59:24 lynx Exp $ // vim:syntax=lpc
//
// this implements a passive listener component
#define NO_INHERIT
#include "jabber.h"
#undef NO_INHERIT
#include <uniform.h>
inherit NET_PATH "xml/common";
inherit NET_PATH "jabber/mixin_parse";
inherit NET_PATH "jabber/mixin_render";
// in theory - or future - scheme plan will be implemented by
// a gateway/imtransport which inherits this file
#define SCHEME_PLAN
volatile protected mapping config;
volatile string streamid;
volatile string componentname;
volatile int authenticated;
logon(arg) {
#ifdef _flag_log_sockets_XMPP
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log_file("RAW_XMPP", "\n%O logon\t%O", ME, ctime());
#endif
#ifdef INPUT_NO_TELNET
input_to(#'feed, INPUT_IGNORE_BANG | INPUT_CHARMODE | INPUT_NO_TELNET);
#else
enable_telnet(0, ME);
input_to(#'feed, INPUT_IGNORE_BANG | INPUT_CHARMODE);
#endif
if (this_interactive()) set_prompt("");
set_combine_charset(COMBINE_CHARSET);
sTextPath(0, "en", "jabber");
}
reboot(reason, restart, pass) {
// close the stream according to XEP 0190
if (interactive(ME)) {
flags |= TCP_PENDING_DISCONNECT;
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emitraw("</stream:stream>");
}
}
onHandshake() {
#ifdef SCHEME_PLAN
register_scheme(config["_scheme"]);
#else
register_target(XMPP + componentname);
#endif
}
#ifdef SCHEME_PLAN
jabberMsg(XMLNode node) {
mixed *su = parse_uniform(XMPP + node["@from"]);
string origin = config["_scheme"] + ":";
unless(su) {
P0(("%O could not find uniform source in %O\n", ME, node))
return;
}
if (su[UUser])
origin += su[UUser];
return ::jabberMsg(node, origin, su);
}
#endif
#ifdef SCHEME_PLAN
determine_targetjid(target, vars) {
mixed *tu;
unless(vars["_INTERNAL_target_jabber_bare"]) {
unless(target)
vars["_INTERNAL_target_jabber_bare"] = componentname;
else {
tu = parse_uniform(target);
if (stringp(tu[UBody]) && strlen(tu[UBody]))
vars["_INTERNAL_target_jabber_bare"] = tu[UBody] + "@" + componentname;
else
vars["_INTERNAL_target_jabber_bare"] = componentname;
}
}
unless (vars["_INTERNAL_target_jabber"]) {
vars["_INTERNAL_target_jabber"] = vars["_INTERNAL_target_jabber_bare"];
}
}
#endif
waitfor_handshake(XMLNode node) {
switch (node[Tag]) {
case "handshake":
if (node[Cdata] == sha1(streamid + config["_secret"])) {
PT(("%O component auth succeded as %O\n", ME, componentname))
nodeHandler = #'jabberMsg;
authenticated = 1;
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emitraw("<handshake/>");
onHandshake();
} else {
monitor_report("_error_invalid_password",
sprintf("%O tried to link to %O using a wrong password",
query_ip_name(), componentname));
STREAM_ERROR("not-authorized", "");
remove_interactive(ME);
}
break;
default:
P0(("%O got %O while waiting for handshake\n", ME, node))
break;
}
}
int msg(string source, string mc, string data,
mapping vars, int showingLog, string target) {
#ifdef DEFLANG
unless(vars["_language"]) vars["_language"] = DEFLANG;
#else
unless(vars["_language"]) vars["_language"] = "en";
#endif
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#if 0
else if (abbrev("_status_person_absent", mc)) {
PT(("Intercepted absent from %O to %O\n", mc, source, ME))
return 1;
}
#endif
switch (mc){
case "_message_echo_private":
return 1;
}
// copied from active
unless (vars["_INTERNAL_mood_jabber"])
vars["_INTERNAL_mood_jabber"] = "neutral";
determine_sourcejid(source, vars);
determine_targetjid(target, vars);
if (vars["_place"]) vars["_place"] = mkjid(vars["_place"]);
unless (vars["_INTERNAL_target_jabber"]) return 1;
return ::msg(source, mc, data, vars, showingLog, target);
}
disconnected(remainder) {
/* unregistering scheme / target is a bad idea, as the target hostname
* does not resolve (in cases where we call it 'icq'), so we're going
* to enqueue until the component connects again
*/
authenticated = 0;
return 0; // unexpected
}
open_stream(node) {
string packet;
if (node["@xmlns"] != "jabber:component:accept") {
remove_interactive(ME); // disconnect
}
object o = find_object(CONFIG_PATH "config");
if (o) config = o->qConfig(node["@to"]);
P2(("\n%O loads config %O\n", ME, config))
streamid = RANDHEXSTRING;
packet = sprintf("<?xml version='1.0' encoding='UTF-8' ?>"
"<stream:stream "
"xmlns='%s' "
"xmlns:stream='http://etherx.jabber.org/streams' "
"xml:lang='en' id='%s' ", node["@xmlns"], streamid);
if (node["@to"]) {
packet += "from='" + node["@to"] + "' ";
} else {
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packet += "from='" _host_XMPP "' ";
}
if (!config) {
/* reply with a stream error */
monitor_report("_error_unknown_host",
sprintf("%O tried to link to %O but we dont have a config for this",
ME, node["@to"]));
STREAM_ERROR("host-unknown", "")
remove_interactive(ME);
}
packet += "version='1.0'>";
emit(packet);
nodeHandler = #'waitfor_handshake;
componentname = node["@to"];
return;
}