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Merge pull request #425 from mauke/irssiproxy-multiplex

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irssi proxy: allow multiplexing multiple networks over a single port
This commit is contained in:
ailin-nemui 2016-02-24 16:14:43 +01:00
commit f83a29b764
5 changed files with 112 additions and 47 deletions
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12
docs/proxy.txt
View File

@ -30,6 +30,18 @@ There we have 3 different irc networks answering in 3 ports. Note that
you'll have to make the correct /IRCNET ADD and /SERVER ADD commands to
make it work properly.
The special network name "?" allows the client to select the network
dynamically on connect:
/SET irssiproxy_ports ?=2777
Now the client can send <network>:<password> as the server password, e.g.
/CONNECT ... 2777 efnet:secret
to connect to efnet. If there is no irssiproxy_password set, you can
omit the ":" and just send the network name as the password.
By default, the proxy binds to all available interfaces. To make it
only listen on (for example) the loopback address:

17
docs/startup-HOWTO.html
View File

@ -735,6 +735,13 @@ reason, and you only use one server connection, you may simply set:</p>
/SET irssiproxy_ports *=2777
</pre>
<p>The special network name <code>?</code> allows the client to select the
network dynamically on connect (see below):</p>
<pre>
/SET irssiproxy_ports ?=2777
</pre>
<p>Usage in client side:</p>
<p>Just connect to the irssi proxy like it is a normal server with password
@ -745,6 +752,16 @@ specified in <code>/SET irssiproxy_password</code>. For example:</p>
/SERVER ADD -network efnet my.irssi-proxy.org 2778 secret
</pre>
<p>Or, if you used <code>?</code> in <code>irssiproxy_ports</code>:</p>
<pre>
/SERVER ADD -network IRCnet my.irssi-proxy.org 2777 IRCnet:secret
/SERVER ADD -network efnet my.irssi-proxy.org 2777 efnet:secret
</pre>
<p>I.e. the network to connect to is specified as part of the password,
separated by <code>:</code> from the actual proxy password.</p>
<p>Irssi proxy works fine with other IRC clients as well.</p>
<p><strong>SOCKS</strong></p>

128
src/irc/proxy/listen.c
View File

@ -48,7 +48,7 @@ static void remove_client(CLIENT_REC *rec)
signal_emit("proxy client disconnected", 1, rec);
printtext(rec->server, NULL, MSGLEVEL_CLIENTNOTICE,
"Proxy: Client %s:%d disconnected", rec->host, rec->port);
"Proxy: Client %s:%d disconnected", rec->host, rec->port);
g_free(rec->proxy_address);
net_sendbuffer_destroy(rec->handle, TRUE);
@ -59,7 +59,7 @@ static void remove_client(CLIENT_REC *rec)
}
static void proxy_redirect_event(CLIENT_REC *client, const char *command,
int count, const char *arg, int remote)
int count, const char *arg, int remote)
{
char *str;
@ -67,7 +67,7 @@ static void proxy_redirect_event(CLIENT_REC *client, const char *command,
str = g_strdup_printf("proxy %p", client);
server_redirect_event(client->server, command, count,
arg, remote, NULL, "", str, NULL);
arg, remote, NULL, "", str, NULL);
g_free(str);
}
@ -94,28 +94,58 @@ static void grab_who(CLIENT_REC *client, const char *channel)
}
proxy_redirect_event(client, "who",
client->server->one_endofwho ? 1 : count,
arg->str, -1);
client->server->one_endofwho ? 1 : count,
arg->str, -1);
g_strfreev(list);
g_string_free(arg, TRUE);
}
static void handle_client_connect_cmd(CLIENT_REC *client,
const char *cmd, const char *args)
const char *cmd, const char *args)
{
const char *password;
password = settings_get_str("irssiproxy_password");
if (password != NULL && g_strcmp0(cmd, "PASS") == 0) {
if (g_strcmp0(password, args) == 0)
client->pass_sent = TRUE;
else {
if (g_strcmp0(cmd, "PASS") == 0) {
const char *args_pass;
if (!client->multiplex) {
args_pass = args;
} else {
IRC_SERVER_REC *server;
char *tag;
const char *tag_end;
if ((tag_end = strchr(args, ':')) != NULL) {
args_pass = tag_end + 1;
} else {
tag_end = args + strlen(args);
args_pass = "";
}
tag = g_strndup(args, tag_end - args);
server = IRC_SERVER(server_find_chatnet(tag));
g_free(tag);
if (!server) {
/* an invalid network was specified */
remove_client(client);
return;
}
client->server = server;
g_free(client->proxy_address);
client->proxy_address = g_strdup_printf("%*s.proxy", (int)(tag_end - args), args);
}
if (g_strcmp0(password, args_pass) != 0) {
/* wrong password! */
remove_client(client);
return;
return;
}
client->pass_sent = TRUE;
} else if (g_strcmp0(cmd, "NICK") == 0) {
g_free_not_null(client->nick);
client->nick = g_strdup(args);
@ -124,14 +154,14 @@ static void handle_client_connect_cmd(CLIENT_REC *client,
}
if (client->nick != NULL && client->user_sent) {
if (*password != '\0' && !client->pass_sent) {
if ((*password != '\0' || client->multiplex) && !client->pass_sent) {
/* client didn't send us PASS, kill it */
remove_client(client);
} else {
signal_emit("proxy client connected", 1, client);
printtext(client->server, NULL, MSGLEVEL_CLIENTNOTICE,
"Proxy: Client %s:%d connected",
client->host, client->port);
"Proxy: Client %s:%d connected",
client->host, client->port);
client->connected = TRUE;
proxy_dump_data(client);
}
@ -139,7 +169,7 @@ static void handle_client_connect_cmd(CLIENT_REC *client,
}
static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
const char *data)
const char *data)
{
GSList *tmp;
if (!client->connected) {
@ -162,8 +192,8 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
g_ascii_strcasecmp(target, client->proxy_address) == 0 ||
g_ascii_strcasecmp(target, client->nick) == 0) {
proxy_outdata(client, ":%s PONG %s :%s\r\n",
client->proxy_address,
client->proxy_address, origin);
client->proxy_address,
client->proxy_address, origin);
g_free(params);
return;
}
@ -174,25 +204,25 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
if (g_ascii_strcasecmp(args, "CTCP ON") == 0) {
/* client wants all ctcps */
client->want_ctcp = 1;
for (tmp = proxy_clients; tmp != NULL; tmp = tmp->next) {
for (tmp = proxy_clients; tmp != NULL; tmp = tmp->next) {
CLIENT_REC *rec = tmp->data;
if ((g_ascii_strcasecmp(client->listen->ircnet,rec->listen->ircnet) == 0) &&
/* kludgy way to check if the clients aren't the same */
(client->recv_tag != rec->recv_tag)) {
if (rec->want_ctcp == 1)
proxy_outdata(rec, ":%s NOTICE %s :Another client is now receiving CTCPs sent to %s\r\n",
rec->proxy_address, rec->nick, rec->listen->ircnet);
rec->want_ctcp = 0;
}
if (g_ascii_strcasecmp(client->listen->ircnet, rec->listen->ircnet) == 0 &&
/* kludgy way to check if the clients aren't the same */
client->recv_tag != rec->recv_tag) {
if (rec->want_ctcp == 1)
proxy_outdata(rec, ":%s NOTICE %s :Another client is now receiving CTCPs sent to %s\r\n",
rec->proxy_address, rec->nick, rec->listen->ircnet);
rec->want_ctcp = 0;
}
}
proxy_outdata(client, ":%s NOTICE %s :You're now receiving CTCPs sent to %s\r\n",
client->proxy_address, client->nick,client->listen->ircnet);
client->proxy_address, client->nick, client->listen->ircnet);
} else if (g_ascii_strcasecmp(args, "CTCP OFF") == 0) {
/* client wants proxy to handle all ctcps */
/* client wants proxy to handle all ctcps */
client->want_ctcp = 0;
proxy_outdata(client, ":%s NOTICE %s :Proxy is now handling itself CTCPs sent to %s\r\n",
client->proxy_address, client->nick, client->listen->ircnet);
client->proxy_address, client->nick, client->listen->ircnet);
} else {
signal_emit("proxy client command", 3, client, args, data);
}
@ -201,11 +231,11 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
if (client->server == NULL || !client->server->connected) {
proxy_outdata(client, ":%s NOTICE %s :Not connected to server\r\n",
client->proxy_address, client->nick);
return;
client->proxy_address, client->nick);
return;
}
/* check if the command could be redirected */
/* check if the command could be redirected */
if (g_strcmp0(cmd, "WHO") == 0)
grab_who(client, args);
else if (g_strcmp0(cmd, "WHOWAS") == 0)
@ -263,29 +293,29 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
char *params, *target, *msg;
params = event_get_params(args, 2 | PARAM_FLAG_GETREST,
&target, &msg);
&target, &msg);
proxy_outserver_all_except(client, "PRIVMSG %s", args);
ignore_next = TRUE;
if (*msg != '\001' || msg[strlen(msg)-1] != '\001') {
signal_emit(server_ischannel(SERVER(client->server), target) ?
"message own_public" : "message own_private", 4,
client->server, msg, target, target);
"message own_public" : "message own_private", 4,
client->server, msg, target, target);
} else if (strncmp(msg+1, "ACTION ", 7) == 0) {
/* action */
msg[strlen(msg)-1] = '\0';
msg[strlen(msg)-1] = '\0';
signal_emit("message irc own_action", 3,
client->server, msg+8, target);
client->server, msg+8, target);
} else {
/* CTCP */
/* CTCP */
char *p;
msg[strlen(msg)-1] = '\0';
p = strchr(msg, ' ');
if (p != NULL) *p++ = '\0'; else p = "";
if (p != NULL) *p++ = '\0'; else p = "";
signal_emit("message irc own_ctcp", 4,
client->server, msg+1, p, target);
client->server, msg+1, p, target);
}
ignore_next = FALSE;
g_free(params);
@ -337,7 +367,7 @@ static void sig_listen(LISTEN_REC *listen)
CLIENT_REC *rec;
IPADDR ip;
NET_SENDBUF_REC *sendbuf;
GIOChannel *handle;
GIOChannel *handle;
char host[MAX_IP_LEN];
int port;
@ -352,9 +382,13 @@ static void sig_listen(LISTEN_REC *listen)
rec = g_new0(CLIENT_REC, 1);
rec->listen = listen;
rec->handle = sendbuf;
rec->host = g_strdup(host);
rec->host = g_strdup(host);
rec->port = port;
if (g_strcmp0(listen->ircnet, "*") == 0) {
if (g_strcmp0(listen->ircnet, "?") == 0) {
rec->multiplex = TRUE;
rec->proxy_address = g_strdup("multiplex.proxy");
rec->server = NULL;
} else if (g_strcmp0(listen->ircnet, "*") == 0) {
rec->proxy_address = g_strdup("irc.proxy");
rec->server = servers == NULL ? NULL : IRC_SERVER(servers->data);
} else {
@ -363,15 +397,15 @@ static void sig_listen(LISTEN_REC *listen)
IRC_SERVER(server_find_chatnet(listen->ircnet));
}
rec->recv_tag = g_input_add(handle, G_INPUT_READ,
(GInputFunction) sig_listen_client, rec);
(GInputFunction) sig_listen_client, rec);
proxy_clients = g_slist_prepend(proxy_clients, rec);
rec->listen->clients = g_slist_prepend(rec->listen->clients, rec);
listen->clients = g_slist_prepend(listen->clients, rec);
signal_emit("proxy client connecting", 1, rec);
printtext(rec->server, NULL, MSGLEVEL_CLIENTNOTICE,
"Proxy: New client %s:%d on port %d (%s)",
rec->host, rec->port, listen->port, listen->ircnet);
"Proxy: New client %s:%d on port %d (%s)",
rec->host, rec->port, listen->port, listen->ircnet);
}
static void sig_incoming(IRC_SERVER_REC *server, const char *line)

1
src/irc/proxy/proxy.h
View File

@ -29,6 +29,7 @@ typedef struct {
unsigned int user_sent:1;
unsigned int connected:1;
unsigned int want_ctcp:1;
unsigned int multiplex:1;
} CLIENT_REC;
#endif

1
src/perl/irc/Irc.xs
View File

@ -157,6 +157,7 @@ static void perl_client_fill_hash(HV *hv, CLIENT_REC *client)
(void) hv_store(hv, "user_sent", 9, newSViv(client->user_sent), 0);
(void) hv_store(hv, "connected", 9, newSViv(client->connected), 0);
(void) hv_store(hv, "want_ctcp", 9, newSViv(client->want_ctcp), 0);
(void) hv_store(hv, "multiplex", 9, newSViv(client->multiplex), 0);
(void) hv_store(hv, "ircnet", 6, new_pv(client->listen->ircnet), 0);
}