gaim plugin to reverse/l337 chats before sending them

gaim-text-reverse.c

/*
 * This Gaim plugin reverses/1337s text before sending it.
 */
#include <glib.h>

#include "internal.h"
#include "debug.h"
#include "conversation.h"
#include "notify.h"
#include "signals.h"
#include "plugin.h"
#include "version.h"

#include "gtkplugin.h"
#include "gtkutils.h"

#define TEXT_REVERSE_PLUGIN_ID "gtk-jtorresh-text-reverse"

#define DO_REVERSE_KEY "/plugins/gtk/reverse-text/reverse"
#define DO_LEET_KEY "/plugins/gtk/reverse-text/leet"

typedef struct
{
	gchar *orig;
	gchar *replace;
} LeetReplacement;

static LeetReplacement leet_replacements[52] = {
	{ "a", "4" },
	{ "b", "8" },
	{ "e", "3" },
	{ "g", "6" },
	{ "i", "1" },
	{ "l", "|_" },
	{ "m", "|\\/|" },
	{ "o", "0" },
	{ "s", "5" },
	{ "t", "7" }
};

static gboolean do_reverse = FALSE;
static gboolean do_leet = FALSE;

static gchar *
str_substitute (const gchar *msg, const gchar *orig, const gchar *repl)
{
	gchar **splitted = g_strsplit (msg, orig, 0);
	gchar *joined = g_strjoinv (repl, splitted);

	g_strfreev (splitted);

	return joined;
}

static gboolean
reverse_text_cb (GaimAccount *account, const char *who, char **message,
		 GaimConversation *conv, GaimMessageFlags flags)
{
	char *msg = g_strdup (*message);

	free (*message);

	if (do_reverse) {
		if (g_utf8_validate (msg, -1, NULL)) {
			char *new_msg = g_utf8_strreverse (msg, -1);
			g_free (msg);

			msg = new_msg;
		} else {
			g_strreverse (msg);
		}
	}

	if (do_leet) {
		int k;

		for (k = 0; k < 26; k++) {
			LeetReplacement lr = leet_replacements[k];

			if (g_strrstr (msg, lr.orig) != NULL) {
				char *new_msg = str_substitute (msg, lr.orig, lr.replace);
				g_free (msg);

				msg = new_msg;
			}
		}
	}
	
	*message = msg;

	return FALSE;
}

static gboolean
plugin_load (GaimPlugin *plugin)
{
	void *handle = gaim_conversations_get_handle ();

	gaim_signal_connect (handle, "writing-im-msg", plugin, GAIM_CALLBACK (reverse_text_cb), NULL);

	do_reverse = gaim_prefs_get_bool (DO_REVERSE_KEY);
	do_leet = gaim_prefs_get_bool (DO_LEET_KEY);

	return TRUE;
}

static gboolean
plugin_unload (GaimPlugin *plugin)
{
	void *handle = gaim_conversations_get_handle ();

	gaim_signal_disconnect (handle, "writing-im-msg", plugin, GAIM_CALLBACK (reverse_text_cb));

	return TRUE;
}

static void
toggle_reverse_cb (GtkToggleButton *button)
{
	do_reverse = gtk_toggle_button_get_active (button);
	gaim_prefs_set_bool (DO_REVERSE_KEY, do_reverse);
}

static void
toggle_leet_cb (GtkToggleButton *button)
{
	do_leet = gtk_toggle_button_get_active (button);
	gaim_prefs_set_bool (DO_LEET_KEY, do_leet);
}

static GtkWidget *
get_config_frame (GaimPlugin *plugin)
{
	GtkWidget *vbox, *frame, *toggle;

	vbox = gtk_vbox_new (FALSE, 18);
	frame = gaim_gtk_make_frame (vbox, "Text Reverse Configuration");

	toggle = gtk_check_button_new_with_label ("Send text reversed");
	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), do_reverse);
	g_signal_connect (G_OBJECT (toggle), "toggled", G_CALLBACK (toggle_reverse_cb), NULL);
	gtk_box_pack_start (GTK_BOX (frame), toggle, FALSE, FALSE, 0);

	toggle = gtk_check_button_new_with_label ("Send text using 1337 speak");
	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), do_leet);
	g_signal_connect (G_OBJECT (toggle), "toggled", G_CALLBACK (toggle_leet_cb), NULL);
	gtk_box_pack_end (GTK_BOX (frame), toggle, FALSE, FALSE, 0);

	gtk_widget_show_all (vbox);

	return vbox;
}

static GaimGtkPluginUiInfo ui_info = {
	get_config_frame
};

static GaimPluginInfo info = {
	GAIM_PLUGIN_MAGIC,
	GAIM_MAJOR_VERSION,
	GAIM_MINOR_VERSION,
	GAIM_PLUGIN_STANDARD, /* type */
	GAIM_GTK_PLUGIN_TYPE, /* ui_requirement */
	0, /* flags */
	NULL, /* dependencies */
	GAIM_PRIORITY_DEFAULT, /* priority */
	TEXT_REVERSE_PLUGIN_ID, /* id */
	"Text Reverse", /* name */
	"0.1", /* version */
	"Reverses typed text in conversations", /* summary */
	NULL, /* description */
	"Jorge Torres <jorge@0xfee1dead.org>", /* author */
	"http://0xfee1dead.org", /* website */
	plugin_load, /* load */
	plugin_unload, /* unload */
	NULL, /* destroy */
	&ui_info,
	NULL,
	NULL,
	NULL
};

static void
init_plugin (GaimPlugin *plugin)
{
	gaim_prefs_add_none ("/plugins/gtk/text-reverse");
	gaim_prefs_add_bool (DO_REVERSE_KEY, do_reverse);
	gaim_prefs_add_bool (DO_LEET_KEY, do_leet);
}

GAIM_INIT_PLUGIN (hello_world, init_plugin, info);