grim/pidgin

Use the leaky bucket algorithm to rate limit irc messages.
draft 2.x.y-irc-rate-limiting
2021-02-24, Gary Kramlich
5bbd0f3a7d4f
Use the leaky bucket algorithm to rate limit irc messages.

The default values were suggested by an operator of freenode.

We don't rate limit the login process, nor parts and quits. However, if you
paste a bunch of text and then part a channel, you will be spammed with a
bunch of "no such nick/channel" error dialogs. I tried to work around this,
but the alternative just makes irc unresponsive until all the pasted messages
are sent. That said, other messages are still delayed while these errors
dialogs are slowly popping up.
#ifndef DBUS_API_SUBJECT_TO_CHANGE
#define DBUS_API_SUBJECT_TO_CHANGE
#endif
#include <dbus/dbus-glib.h>
#include <stdio.h>
#include <stdlib.h>
#include "dbus-purple.h"
#include "purple-client.h"
static DBusGConnection *bus;
static DBusGProxy *purple_proxy;
static GList *garray_int_to_glist(GArray *array)
{
GList *list = NULL;
gsize i;
for (i = 0; i < array->len; i++)
list = g_list_append(list, GINT_TO_POINTER(g_array_index(array,gint,i)));
g_array_free(array, TRUE);
return list;
}
static GSList *garray_int_to_gslist(GArray *array)
{
GSList *list = NULL;
gsize i;
for (i = 0; i < array->len; i++)
list = g_slist_append(list, GINT_TO_POINTER(g_array_index(array,gint,i)));
g_array_free(array, TRUE);
return list;
}
#include "purple-client-bindings.c"
static void lose(const char *fmt, ...) G_GNUC_NORETURN G_GNUC_PRINTF (1, 2);
static void lose_gerror(const char *prefix, GError *error) G_GNUC_NORETURN;
static void
lose(const char *str, ...)
{
va_list args;
va_start(args, str);
vfprintf(stderr, str, args);
fputc('\n', stderr);
va_end(args);
exit(1);
}
static void
lose_gerror(const char *prefix, GError *error)
{
lose("%s: %s", prefix, error->message);
}
void purple_init(void)
{
GError *error = NULL;
#if !GLIB_CHECK_VERSION(2, 36, 0)
/* GLib type system is automaticaly initialized since 2.36. */
g_type_init();
#endif
bus = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
if (!bus)
lose_gerror ("Couldn't connect to session bus", error);
purple_proxy = dbus_g_proxy_new_for_name (bus,
DBUS_SERVICE_PURPLE,
DBUS_PATH_PURPLE,
DBUS_INTERFACE_PURPLE);
if (!purple_proxy)
lose_gerror ("Couldn't connect to the Purple Service", error);
}