adding lua plugin/script

1 files changed, 1584 insertions, 0 deletions

diff --git a/src/plugins/scripts/lua/weechat-lua.c b/src/plugins/scripts/lua/weechat-lua.c
new file mode 100644
index 000000000..198b6bbd5
--- /dev/null
+++ b/src/plugins/scripts/lua/weechat-lua.c
@@ -0,0 +1,1584 @@
+/*
+ * Copyright (c) 2003-2006 by FlashCode <flashcode@flashtux.org>
+ * See README for License detail, AUTHORS for developers list.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/* weechat-lua.c: Lua plugin support for WeeChat */
+
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#undef _
+#include "../../weechat-plugin.h"
+#include "../weechat-script.h"
+
+
+char plugin_name[]        = "Lua";
+char plugin_version[]     = "0.1";
+char plugin_description[] = "Lua scripts support";
+
+t_weechat_plugin *lua_plugin;
+
+t_plugin_script *lua_scripts = NULL;
+t_plugin_script *lua_current_script = NULL;
+char *lua_current_script_filename = NULL;
+lua_State *lua_current_interpreter = NULL;
+
+
+/*
+ * weechat_lua_exec: execute a Lua script
+ */
+
+int
+weechat_lua_exec (t_weechat_plugin *plugin,
+		  t_plugin_script *script,
+		  char *function, char *server, char *arguments)
+{
+
+    lua_current_interpreter = script->interpreter;
+
+    lua_getglobal (lua_current_interpreter, function);
+    lua_current_script = script;
+    
+    lua_pushstring (lua_current_interpreter, server == NULL ? "" : server);
+    lua_pushstring (lua_current_interpreter, arguments == NULL ? "" : arguments);
+    
+    if ( lua_pcall(lua_current_interpreter, 2, 1, 0) != 0)
+    {
+	plugin->printf_server (plugin,
+                               "Lua error: unable to run function \"%s\"",
+                               function);
+	plugin->printf_server (plugin,
+                               "Lua error: %s",
+                               lua_tostring (lua_current_interpreter, -1));
+        return PLUGIN_RC_KO;
+    }
+    
+    return lua_tonumber (lua_current_interpreter, -1);
+}
+
+/*
+ * weechat_lua_handler: general message and command handler for Lua
+ */
+
+int
+weechat_lua_handler (t_weechat_plugin *plugin,
+                        char *server, char *command, char *arguments,
+                        char *handler_args, void *handler_pointer)
+{
+    /* make gcc happy */
+    (void) command;
+    
+    return weechat_lua_exec (plugin, (t_plugin_script *)handler_pointer,
+                                handler_args, server, arguments);
+}
+
+/*
+ * weechat_lua_register: startup function for all WeeChat Lua scripts
+ */
+
+static int
+weechat_lua_register (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    
+    const char *name, *version, *shutdown_func, *description;
+    
+    name = NULL;
+    version = NULL;
+    shutdown_func = NULL;
+    description = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+
+    if (n != 4)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"register\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    name = lua_tostring (lua_current_interpreter, -4);
+    version = lua_tostring (lua_current_interpreter, -3);
+    shutdown_func = lua_tostring (lua_current_interpreter, -2);
+    description = lua_tostring (lua_current_interpreter, -1);
+
+    if (weechat_script_search (lua_plugin, &lua_scripts, (char *) name))
+    {
+        /* error: another scripts already exists with this name! */
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to register "
+                                      "\"%s\" script (another script "
+                                      "already exists with this name)",
+                                      name);
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    /* register script */
+    lua_current_script = weechat_script_add (lua_plugin,
+					     &lua_scripts,
+					     (lua_current_script_filename) ?
+					     lua_current_script_filename : "",
+					     (char *) name, 
+					     (char *) version, 
+					     (char *) shutdown_func,
+					     (char *) description);
+    if (lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua: registered script \"%s\", "
+                                      "version %s (%s)",
+                                      name, version, description);
+    }
+    else
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to load script "
+                                      "\"%s\" (not enough memory)",
+                                      name);
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_print: print message into a buffer (current or specified one)
+ */
+
+static int
+weechat_lua_print  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    const char *message, *channel_name, *server_name;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to print message, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    message = NULL;
+    channel_name = NULL;
+    server_name = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+
+    switch (n)
+    {
+    case 1:
+	message = lua_tostring (lua_current_interpreter, -1);
+	break;
+    case 2:
+	channel_name = lua_tostring (lua_current_interpreter, -2);
+	message = lua_tostring (lua_current_interpreter, -1);
+	break;
+    case 3:
+	server_name = lua_tostring (lua_current_interpreter, -3);
+	channel_name = lua_tostring (lua_current_interpreter, -2);
+	message = lua_tostring (lua_current_interpreter, -1);
+	break;
+    default:
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"print\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    lua_plugin->printf (lua_plugin,
+			(char *) server_name,
+			(char *) channel_name,
+			"%s", (char *) message);
+    
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_print_infobar: print message to infobar
+ */
+
+static int
+weechat_lua_print_infobar  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    int delay;
+    const char *message;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to print infobar message, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    delay = 1;
+    message = NULL;
+
+    int n = lua_gettop (lua_current_interpreter);
+
+    if (n != 2)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"print_infobar\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    delay = lua_tonumber (lua_current_interpreter, -2);
+    message = lua_tostring (lua_current_interpreter, -1);
+    
+    lua_plugin->infobar_printf (lua_plugin, delay, "%s", (char *) message);
+    
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_command: send command to server
+ */
+
+static int
+weechat_lua_command  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    const char *command, *channel_name, *server_name;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to run command, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    command = NULL;
+    channel_name = NULL;
+    server_name = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+
+    switch (n)
+    {
+    case 1:
+	command = lua_tostring (lua_current_interpreter, -1);
+	break;
+    case 2:
+	channel_name = lua_tostring (lua_current_interpreter, -2);
+	command = lua_tostring (lua_current_interpreter, -1);
+	break;
+    case 3:
+	server_name = lua_tostring (lua_current_interpreter, -3);
+	channel_name = lua_tostring (lua_current_interpreter, -2);
+	command = lua_tostring (lua_current_interpreter, -1);
+	break;
+    default:
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"command\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    lua_plugin->exec_command (lua_plugin,
+			      (char *) server_name,
+			      (char *) channel_name,
+			      (char *) command);
+
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_add_message_handler: add handler for messages
+ */
+
+static int
+weechat_lua_add_message_handler  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    char *irc_command, *function;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to add message handler, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    irc_command = NULL;
+    function = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+
+    if (n != 2)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"add_message_handler\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    if (!lua_plugin->msg_handler_add (lua_plugin, irc_command,
+				     weechat_lua_handler, function,
+				     (void *)lua_current_script))
+    {
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_add_command_handler: define/redefines commands
+ */
+
+static int
+weechat_lua_add_command_handler  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    
+    const char *command, *function, *description, *arguments, *arguments_description;
+    const char *completion_template;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to add command handler, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    command = NULL;
+    function = NULL;
+    description = NULL;
+    arguments = NULL;
+    arguments_description = NULL;
+    completion_template = NULL;
+
+    int n = lua_gettop (lua_current_interpreter);
+    
+    switch (n)
+    {
+    case 2:
+	command = lua_tostring (lua_current_interpreter, -2);
+	function = lua_tostring (lua_current_interpreter, -1);
+	break;
+    case 6:
+	command = lua_tostring (lua_current_interpreter, -6);
+        function = lua_tostring (lua_current_interpreter, -5);
+	description = lua_tostring (lua_current_interpreter, -4);
+	arguments = lua_tostring (lua_current_interpreter, -3);
+	arguments_description = lua_tostring (lua_current_interpreter, -2);
+	completion_template = lua_tostring (lua_current_interpreter, -1);
+	break;
+    default:
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"add_command_handler\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    if (!lua_plugin->cmd_handler_add (lua_plugin,
+				      (char *) command,
+				      (char *) description,
+				      (char *) arguments,
+				      (char *) arguments_description,
+				      (char *) completion_template,
+				      weechat_lua_handler,
+				      (char *) function,
+				      (void *)lua_current_script))
+    {
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_remove_handler: remove a handler
+ */
+
+static int
+weechat_lua_remove_handler (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    char *command, *function;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to remove handler, "
+                                      "script not initialized");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    command = NULL;
+    function = NULL;
+ 
+    int n = lua_gettop (lua_current_interpreter);
+
+    if (n != 2)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"remove_handler\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    weechat_script_remove_handler (lua_plugin, lua_current_script,
+                                   command, function);
+    
+    lua_pushnumber (lua_current_interpreter, 1);
+    return 1;
+}
+
+/*
+ * weechat_lua_get_info: get various infos
+ */
+
+static int
+weechat_lua_get_info  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    
+    const char *arg, *server_name;
+    char *info;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to get info, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    arg = NULL;
+    server_name = NULL;
+    
+     int n = lua_gettop (lua_current_interpreter);
+
+    switch (n)
+    {
+    case 1:
+	arg = lua_tostring (lua_current_interpreter, -1);
+	break;
+    case 2:
+	arg = lua_tostring (lua_current_interpreter, -2);
+	server_name = lua_tostring (lua_current_interpreter, -1);
+	break;
+    default:
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"get_info\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    info = lua_plugin->get_info (lua_plugin, (char *) arg, (char *) server_name);
+    if (info)
+	lua_pushstring (lua_current_interpreter, info);
+    else
+	lua_pushstring (lua_current_interpreter, "");
+    
+    return  1;
+}
+
+/*
+ * weechat_lua_get_dcc_info: get infos about DCC
+ */
+
+static int
+weechat_lua_get_dcc_info  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    t_plugin_dcc_info *dcc_info, *ptr_dcc;
+    char timebuffer1[64];
+    char timebuffer2[64];
+    struct in_addr in;
+    int i;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to get DCC info, "
+                                      "script not initialized");
+	lua_pushnil (lua_current_interpreter);
+	return 1;
+    }
+    
+    dcc_info = lua_plugin->get_dcc_info (lua_plugin);
+    if (!dcc_info)
+    {
+	lua_pushboolean (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    lua_newtable (lua_current_interpreter);
+
+    for(i=0, ptr_dcc = dcc_info; ptr_dcc; ptr_dcc = ptr_dcc->next_dcc, i++)
+    {
+	strftime(timebuffer1, sizeof(timebuffer1), "%F %T",
+		 localtime(&ptr_dcc->start_time));
+	strftime(timebuffer2, sizeof(timebuffer2), "%F %T",
+		 localtime(&ptr_dcc->start_transfer));
+	in.s_addr = htonl(ptr_dcc->addr);
+	
+	lua_pushnumber (lua_current_interpreter, i);
+	lua_newtable (lua_current_interpreter);
+
+	lua_pushstring (lua_current_interpreter, "server");
+	lua_pushstring (lua_current_interpreter, ptr_dcc->server);
+	lua_rawset (lua_current_interpreter, -3);
+		    
+	lua_pushstring (lua_current_interpreter, "channel");
+	lua_pushstring (lua_current_interpreter, ptr_dcc->channel);
+	lua_rawset (lua_current_interpreter, -3);
+		    
+	lua_pushstring (lua_current_interpreter, "type");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->type);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "status");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->status);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "start_time");
+	lua_pushstring (lua_current_interpreter, timebuffer1);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "start_transfer");
+	lua_pushstring (lua_current_interpreter, timebuffer2);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "address");
+	lua_pushstring (lua_current_interpreter, inet_ntoa(in));
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "port");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->port);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "nick");
+	lua_pushstring (lua_current_interpreter, ptr_dcc->nick);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "remote_file");
+	lua_pushstring (lua_current_interpreter, ptr_dcc->filename);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "local_file");
+	lua_pushstring (lua_current_interpreter, ptr_dcc->local_filename);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "filename_suffix");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->filename_suffix);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "size");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->size);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "pos");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->pos);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "start_resume");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->start_resume);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "cps");
+	lua_pushnumber (lua_current_interpreter, ptr_dcc->bytes_per_sec);
+	lua_rawset (lua_current_interpreter, -3);
+
+	lua_rawset (lua_current_interpreter, -3);
+    }
+    
+    lua_plugin->free_dcc_info (lua_plugin, dcc_info);
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_get_config: get value of a WeeChat config option
+ */
+
+static int
+weechat_lua_get_config  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    const char *option;
+    char *return_value;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+				   "Lua error: unable to get config option, "
+				   "script not initialized");	
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = NULL;
+ 
+    int n = lua_gettop (lua_current_interpreter);
+
+    if (n != 1)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"get_config\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = lua_tostring (lua_current_interpreter, -1);
+    
+    return_value = lua_plugin->get_config (lua_plugin, (char *) option);    
+    if (return_value)
+	lua_pushstring (lua_current_interpreter, return_value);
+    else
+	lua_pushstring (lua_current_interpreter, "");
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_set_config: set value of a WeeChat config option
+ */
+
+static int
+weechat_lua_set_config  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    const char *option, *value;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to set config option, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = NULL;
+    value = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+    
+    if (n != 2)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"set_config\" function");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = lua_tostring (lua_current_interpreter, -2);
+    value = lua_tostring (lua_current_interpreter, -1);
+
+    if (lua_plugin->set_config (lua_plugin, (char *) option, (char *) value))
+	lua_pushnumber (lua_current_interpreter, 1);
+    else
+	lua_pushnumber (lua_current_interpreter, 0);
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_get_plugin_config: get value of a plugin config option
+ */
+
+static int
+weechat_lua_get_plugin_config  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    const char *option;
+    char *return_value;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+				   "Lua error: unable to get plugin config option, "
+				   "script not initialized");	
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = NULL;
+ 
+    int n = lua_gettop (lua_current_interpreter);
+
+    if (n != 1)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"get_plugin_config\" function");
+        lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = lua_tostring (lua_current_interpreter, -1);
+    
+    return_value = weechat_script_get_plugin_config (lua_plugin,
+						     lua_current_script,
+						     (char *) option);
+    if (return_value)
+	lua_pushstring (lua_current_interpreter, return_value);
+    else
+	lua_pushstring (lua_current_interpreter, "");
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_set_plugin_config: set value of a plugin config option
+ */
+
+static int
+weechat_lua_set_plugin_config  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    const char *option, *value;
+	
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to set plugin config option, "
+                                      "script not initialized");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = NULL;
+    value = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+    
+    if (n != 2)
+    {
+	lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"set_plugin_config\" function");
+	lua_pushnumber (lua_current_interpreter, 0);
+	return 1;
+    }
+    
+    option = lua_tostring (lua_current_interpreter, -2);
+    value = lua_tostring (lua_current_interpreter, -1);
+
+    if (weechat_script_set_plugin_config (lua_plugin,
+					  lua_current_script,
+					  (char *) option, (char *) value))
+	lua_pushnumber (lua_current_interpreter, 1);
+    else
+	lua_pushnumber (lua_current_interpreter, 0);
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_get_server_info: get infos about servers
+ */
+
+static int
+weechat_lua_get_server_info  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    t_plugin_server_info *server_info, *ptr_server;
+    char timebuffer[64];
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+				   "Lua error: unable to get server infos, "
+				   "script not initialized");
+	lua_pushnil (lua_current_interpreter);
+	return 1;
+    }
+    
+    server_info = lua_plugin->get_server_info (lua_plugin);
+    if  (!server_info) {
+	lua_pushboolean (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    lua_newtable (lua_current_interpreter);
+
+    for(ptr_server = server_info; ptr_server; ptr_server = ptr_server->next_server)
+    {
+	strftime(timebuffer, sizeof(timebuffer), "%F %T",
+		 localtime(&ptr_server->away_time));
+	
+	lua_pushstring (lua_current_interpreter, ptr_server->name);
+	lua_newtable (lua_current_interpreter);
+	
+	lua_pushstring (lua_current_interpreter, "autoconnect");
+	lua_pushnumber (lua_current_interpreter, ptr_server->autoconnect);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "autoreconnect");
+	lua_pushnumber (lua_current_interpreter, ptr_server->autoreconnect);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "autoreconnect_delay");
+	lua_pushnumber (lua_current_interpreter, ptr_server->autoreconnect_delay);
+	lua_rawset (lua_current_interpreter, -3);
+		
+	lua_pushstring (lua_current_interpreter, "command_line");
+	lua_pushnumber (lua_current_interpreter, ptr_server->command_line);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "address");
+	lua_pushstring (lua_current_interpreter, ptr_server->address);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "port");
+	lua_pushnumber (lua_current_interpreter, ptr_server->port);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "ipv6");
+	lua_pushnumber (lua_current_interpreter, ptr_server->ipv6);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "ssl");
+	lua_pushnumber (lua_current_interpreter, ptr_server->ssl);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "password");
+	lua_pushstring (lua_current_interpreter, ptr_server->password);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "nick1");
+	lua_pushstring (lua_current_interpreter, ptr_server->nick1);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "nick2");
+	lua_pushstring (lua_current_interpreter, ptr_server->nick2);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "nick3");
+	lua_pushstring (lua_current_interpreter, ptr_server->nick3);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "username");
+	lua_pushstring (lua_current_interpreter, ptr_server->username);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "realname");
+	lua_pushstring (lua_current_interpreter, ptr_server->realname);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "command");
+	lua_pushstring (lua_current_interpreter, ptr_server->command);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "command_delay");
+	lua_pushnumber (lua_current_interpreter, ptr_server->command_delay);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "autojoin");
+	lua_pushstring (lua_current_interpreter, ptr_server->autojoin);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "autorejoin");
+	lua_pushnumber (lua_current_interpreter, ptr_server->autorejoin);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "notify_levels");
+	lua_pushstring (lua_current_interpreter, ptr_server->notify_levels);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "charset_decode_iso");
+	lua_pushstring (lua_current_interpreter, ptr_server->charset_decode_iso);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "charset_decode_utf");
+	lua_pushstring (lua_current_interpreter, ptr_server->charset_decode_utf);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "charset_encode");
+	lua_pushstring (lua_current_interpreter, ptr_server->charset_encode);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "is_connected");
+	lua_pushnumber (lua_current_interpreter, ptr_server->is_connected);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "ssl_connected");
+	lua_pushnumber (lua_current_interpreter, ptr_server->ssl_connected);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "nick");
+	lua_pushstring (lua_current_interpreter, ptr_server->nick);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "away_time");
+	lua_pushstring (lua_current_interpreter, timebuffer);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "lag");
+	lua_pushnumber (lua_current_interpreter, ptr_server->lag);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_rawset (lua_current_interpreter, -3);
+    }
+
+    lua_plugin->free_server_info(lua_plugin, server_info);
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_get_channel_info: get infos about channels
+ */
+
+static int
+weechat_lua_get_channel_info  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    t_plugin_channel_info *channel_info, *ptr_channel;
+    const char *server;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to get channel infos, "
+                                      "script not initialized");
+	lua_pushnil (lua_current_interpreter);
+	return 1;
+    }
+    
+    server = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+    
+    if (n != 1)
+    {
+        lua_plugin->printf_server (lua_plugin,
+				   "Lua error: wrong parameters for "
+				   "\"get_channel_info\" function");
+        lua_pushnil (lua_current_interpreter);
+	return 1;
+    }
+
+    server = lua_tostring (lua_current_interpreter, -1);
+    
+    channel_info = lua_plugin->get_channel_info (lua_plugin, (char *) server);
+    if  (!channel_info)
+    {
+	lua_pushboolean (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    lua_newtable (lua_current_interpreter);
+
+    for(ptr_channel = channel_info; ptr_channel; ptr_channel = ptr_channel->next_channel)
+    {
+	lua_pushstring (lua_current_interpreter, ptr_channel->name);
+	lua_newtable (lua_current_interpreter);
+	
+	lua_pushstring (lua_current_interpreter, "type");
+	lua_pushnumber (lua_current_interpreter, ptr_channel->type);
+	lua_rawset (lua_current_interpreter, -3);
+
+	lua_pushstring (lua_current_interpreter, "topic");
+	lua_pushstring (lua_current_interpreter, ptr_channel->topic);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_pushstring (lua_current_interpreter, "modes");
+	lua_pushstring (lua_current_interpreter, ptr_channel->modes);
+	lua_rawset (lua_current_interpreter, -3);
+
+	lua_pushstring (lua_current_interpreter, "limit");
+	lua_pushnumber (lua_current_interpreter, ptr_channel->limit);
+	lua_rawset (lua_current_interpreter, -3);
+
+	lua_pushstring (lua_current_interpreter, "key");
+	lua_pushstring (lua_current_interpreter, ptr_channel->key);
+	lua_rawset (lua_current_interpreter, -3);
+
+	lua_pushstring (lua_current_interpreter, "nicks_count");
+	lua_pushnumber (lua_current_interpreter, ptr_channel->nicks_count);
+	lua_rawset (lua_current_interpreter, -3);
+
+	lua_rawset (lua_current_interpreter, -3);
+    }    
+
+    lua_plugin->free_channel_info(lua_plugin, channel_info);
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_get_nick_info: get infos about nicks
+ */
+
+static int
+weechat_lua_get_nick_info  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+ 
+    t_plugin_nick_info *nick_info, *ptr_nick;
+    const char *server, *channel;
+    
+    if (!lua_current_script)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: unable to get nick infos, "
+                                      "script not initialized");
+		lua_pushnil (lua_current_interpreter);
+	return 1;
+    }
+    
+    server = NULL;
+    channel = NULL;
+    
+    int n = lua_gettop (lua_current_interpreter);
+    
+    if (n != 2)
+    {
+        lua_plugin->printf_server (lua_plugin,
+                                      "Lua error: wrong parameters for "
+                                      "\"get_nick_info\" function");
+        lua_pushnil (lua_current_interpreter);
+	return 1;
+    }
+
+    server = lua_tostring (lua_current_interpreter, -2);
+    channel = lua_tostring (lua_current_interpreter, -1);
+    
+    nick_info = lua_plugin->get_nick_info (lua_plugin, (char *) server, (char *) channel);
+    if  (!nick_info)
+    {
+	lua_pushboolean (lua_current_interpreter, 0);
+	return 1;
+    }
+
+    lua_newtable (lua_current_interpreter);
+    
+    for(ptr_nick = nick_info; ptr_nick; ptr_nick = ptr_nick->next_nick)
+    {
+	lua_pushstring (lua_current_interpreter, ptr_nick->nick);
+	lua_newtable (lua_current_interpreter);
+	
+	lua_pushstring (lua_current_interpreter, "flags");
+	lua_pushnumber (lua_current_interpreter, ptr_nick->flags);
+	lua_rawset (lua_current_interpreter, -3);
+	
+	lua_rawset (lua_current_interpreter, -3);
+    }
+    
+    lua_plugin->free_nick_info(lua_plugin, nick_info);
+    
+    return 1;
+}
+
+
+/*
+ * Lua constant as functions
+ */
+
+static int
+weechat_lua_constant_plugin_rc_ok  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    lua_pushnumber (lua_current_interpreter, PLUGIN_RC_OK);
+    return 1;
+}
+
+static int
+weechat_lua_constant_plugin_rc_ko  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    lua_pushnumber (lua_current_interpreter, PLUGIN_RC_KO);
+    return 1;
+}
+    
+static int
+weechat_lua_constant_plugin_rc_ok_ignore_weechat  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    lua_pushnumber (lua_current_interpreter, PLUGIN_RC_OK_IGNORE_WEECHAT);
+    return 1;
+}
+
+static int
+weechat_lua_constant_plugin_rc_ok_ignore_plugins  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    lua_pushnumber (lua_current_interpreter, PLUGIN_RC_OK_IGNORE_PLUGINS);
+    return 1;
+}
+
+static int
+weechat_lua_constant_plugin_rc_ok_ignore_all  (lua_State *L)
+{
+    /* make gcc happy */
+    (void) L;
+    lua_pushnumber (lua_current_interpreter, PLUGIN_RC_OK_IGNORE_ALL);
+    return 1;
+}
+
+/*
+ * Lua subroutines
+ */
+
+static
+const struct luaL_reg weechat_lua_funcs[] = {
+    { "register", weechat_lua_register},
+    { "print", weechat_lua_print},
+    { "print_infobar", weechat_lua_print_infobar},
+    { "command", weechat_lua_command},
+    { "add_message_handler", weechat_lua_add_message_handler},
+    { "add_command_handler", weechat_lua_add_command_handler},
+    { "remove_handler", weechat_lua_remove_handler},
+    { "get_info", weechat_lua_get_info},
+    { "get_dcc_info", weechat_lua_get_dcc_info},
+    { "get_config", weechat_lua_get_config},
+    { "set_config", weechat_lua_set_config},
+    { "get_plugin_config", weechat_lua_get_plugin_config},
+    { "set_plugin_config", weechat_lua_set_plugin_config},
+    { "get_server_info", weechat_lua_get_server_info},
+    { "get_channel_info", weechat_lua_get_channel_info},
+    { "get_nick_info", weechat_lua_get_nick_info},
+    /* define constants as function which returns values */
+    { "PLUGIN_RC_OK", weechat_lua_constant_plugin_rc_ok},
+    { "PLUGIN_RC_KO", weechat_lua_constant_plugin_rc_ko},
+    { "PLUGIN_RC_OK_IGNORE_WEECHAT", weechat_lua_constant_plugin_rc_ok_ignore_weechat},
+    { "PLUGIN_RC_OK_IGNORE_PLUGINS", weechat_lua_constant_plugin_rc_ok_ignore_plugins},
+    { "PLUGIN_RC_OK_IGNORE_ALL", weechat_lua_constant_plugin_rc_ok_ignore_all},
+    { NULL, NULL}
+};
+
+int
+weechat_lua_load (t_weechat_plugin *plugin, char *filename)
+{
+    char *weechat_lua_code = {
+	"weechat_outputs = {\n"
+	"    write = function (self, str)\n"
+	"        weechat.print(\"Lua stdout/stderr : \" .. str)\n"
+        "    end\n"
+	"}\n"
+	"io.stdout = weechat_outputs\n"
+	"io.stderr = weechat_outputs\n"
+    };
+    FILE *fp;
+    
+    plugin->printf_server (plugin, "Loading Lua script \"%s\"", filename);
+    
+    if ((fp = fopen (filename, "r")) == NULL)
+    {
+        plugin->printf_server (plugin,
+                               "Lua error: unable to open file \"%s\"",
+                               filename);
+        return 0;
+    }
+
+    lua_current_script = NULL;
+    
+    lua_current_interpreter = lua_open ();
+
+    if (lua_current_interpreter == NULL)
+    {
+        plugin->printf_server (plugin,
+                               "Lua error: unable to create new sub-interpreter");
+        fclose (fp);
+        return 0;
+    }
+
+    luaopen_base (lua_current_interpreter);
+    luaopen_table (lua_current_interpreter);
+    luaopen_io (lua_current_interpreter);
+    luaopen_string (lua_current_interpreter);
+    luaopen_math (lua_current_interpreter);
+    luaopen_debug (lua_current_interpreter);
+    
+    luaL_openlib (lua_current_interpreter, "weechat", weechat_lua_funcs, 0);
+    
+    if (lua_dostring (lua_current_interpreter, weechat_lua_code) != 0)
+        plugin->printf_server (plugin,
+                               "Lua warning: unable to redirect stdout and stderr");
+    
+    lua_current_script_filename = strdup (filename);
+    
+    if (luaL_loadfile (lua_current_interpreter, filename) != 0)
+    {
+        plugin->printf_server (plugin,
+                               "Lua error: unable to load file \"%s\"",
+                               filename);
+	plugin->printf_server (plugin,
+                               "Lua error: %s",
+                               lua_tostring (lua_current_interpreter, -1));
+        free (lua_current_script_filename);
+        lua_close (lua_current_interpreter);
+        fclose (fp);
+        return 0;
+    }
+
+    if (lua_pcall (lua_current_interpreter, 0, 0, 0) != 0)
+    {
+        plugin->printf_server (plugin,
+                               "Lua error: unable to execute file \"%s\"",
+                               filename);
+	plugin->printf_server (plugin,
+                               "Lua error: %s",
+                               lua_tostring (lua_current_interpreter, -1));
+        free (lua_current_script_filename);
+        lua_close (lua_current_interpreter);
+        fclose (fp);
+	/* if script was registered, removing from list */
+	if (lua_current_script != NULL)
+	    weechat_script_remove (plugin, &lua_scripts, lua_current_script);
+        return 0;
+    }
+
+    fclose (fp);
+    free (lua_current_script_filename);
+    
+    if (lua_current_script == NULL)
+    {
+        plugin->printf_server (plugin,
+                               "Lua error: function \"register\" not found "
+                               "in file \"%s\"",
+                               filename);
+	lua_close (lua_current_interpreter);
+        return 0;
+    }
+    
+    lua_current_script->interpreter = (lua_State *) lua_current_interpreter;
+    
+    return 1;
+}
+
+/*
+ * weechat_lua_unload: unload a Lua script
+ */
+
+void
+weechat_lua_unload (t_weechat_plugin *plugin, t_plugin_script *script)
+{
+    plugin->printf_server (plugin,
+                           "Unloading Lua script \"%s\"",
+                           script->name);
+    
+    if (script->shutdown_func[0])
+        weechat_lua_exec (plugin, script, script->shutdown_func, "", "");
+    
+    lua_close (script->interpreter);
+    
+    weechat_script_remove (plugin, &lua_scripts, script);
+}
+
+/*
+ * weechat_lua_unload_name: unload a Lua script by name
+ */
+
+void
+weechat_lua_unload_name (t_weechat_plugin *plugin, char *name)
+{
+    t_plugin_script *ptr_script;
+    
+    ptr_script = weechat_script_search (plugin, &lua_scripts, name);
+    if (ptr_script)
+    {
+        weechat_lua_unload (plugin, ptr_script);
+        plugin->printf_server (plugin,
+                               "Lua script \"%s\" unloaded",
+                               name);
+    }
+    else
+    {
+        plugin->printf_server (plugin,
+                               "Lua error: script \"%s\" not loaded",
+                               name);
+    }
+}
+
+/*
+ * weechat_lua_unload_all: unload all Lua scripts
+ */
+
+void
+weechat_lua_unload_all (t_weechat_plugin *plugin)
+{
+    plugin->printf_server (plugin,
+                           "Unloading all Lua scripts");
+    while (lua_scripts)
+        weechat_lua_unload (plugin, lua_scripts);
+
+    plugin->printf_server (plugin,
+                           "Lua scripts unloaded");
+}
+
+/*
+ * weechat_lua_cmd: /lua command handler
+ */
+
+int
+weechat_lua_cmd (t_weechat_plugin *plugin,
+                    char *server, char *command, char *arguments,
+                    char *handler_args, void *handler_pointer)
+{
+    int argc, path_length, handler_found;
+    char **argv, *path_script, *dir_home;
+    t_plugin_script *ptr_script;
+    t_plugin_handler *ptr_handler;
+    
+    /* make gcc happy */
+    (void) server;
+    (void) command;
+    (void) handler_args;
+    (void) handler_pointer;
+    
+    if (arguments)
+        argv = plugin->explode_string (plugin, arguments, " ", 0, &argc);
+    else
+    {
+        argv = NULL;
+        argc = 0;
+    }
+    
+    switch (argc)
+    {
+        case 0:
+            /* list registered Lua scripts */
+            plugin->printf_server (plugin, "");
+            plugin->printf_server (plugin, "Registered Lua scripts:");
+            if (lua_scripts)
+            {
+                for (ptr_script = lua_scripts;
+                     ptr_script; ptr_script = ptr_script->next_script)
+                {
+                    plugin->printf_server (plugin, "  %s v%s%s%s",
+                                           ptr_script->name,
+                                           ptr_script->version,
+                                           (ptr_script->description[0]) ? " - " : "",
+                                           ptr_script->description);
+                }
+            }
+            else
+                plugin->printf_server (plugin, "  (none)");
+            
+            /* list Lua message handlers */
+            plugin->printf_server (plugin, "");
+            plugin->printf_server (plugin, "Lua message handlers:");
+            handler_found = 0;
+            for (ptr_handler = plugin->handlers;
+                 ptr_handler; ptr_handler = ptr_handler->next_handler)
+            {
+                if ((ptr_handler->type == HANDLER_MESSAGE)
+                    && (ptr_handler->handler_args))
+                {
+                    handler_found = 1;
+                    plugin->printf_server (plugin, "  IRC(%s) => Lua(%s)",
+                                           ptr_handler->irc_command,
+                                           ptr_handler->handler_args);
+                }
+            }
+            if (!handler_found)
+                plugin->printf_server (plugin, "  (none)");
+            
+            /* list Lua command handlers */
+            plugin->printf_server (plugin, "");
+            plugin->printf_server (plugin, "Lua command handlers:");
+            handler_found = 0;
+            for (ptr_handler = plugin->handlers;
+                 ptr_handler; ptr_handler = ptr_handler->next_handler)
+            {
+                if ((ptr_handler->type == HANDLER_COMMAND)
+                    && (ptr_handler->handler_args))
+                {
+                    handler_found = 1;
+                    plugin->printf_server (plugin, "  /%s => Lua(%s)",
+                                           ptr_handler->command,
+                                           ptr_handler->handler_args);
+                }
+            }
+            if (!handler_found)
+                plugin->printf_server (plugin, "  (none)");
+            break;
+        case 1:
+            if (plugin->ascii_strcasecmp (plugin, argv[0], "autoload") == 0)
+                weechat_script_auto_load (plugin, "lua", weechat_lua_load);
+            else if (plugin->ascii_strcasecmp (plugin, argv[0], "reload") == 0)
+            {
+                weechat_lua_unload_all (plugin);
+                weechat_script_auto_load (plugin, "lua", weechat_lua_load);
+            }
+            else if (plugin->ascii_strcasecmp (plugin, argv[0], "unload") == 0)
+                weechat_lua_unload_all (plugin);
+            break;
+        case 2:
+            if (plugin->ascii_strcasecmp (plugin, argv[0], "load") == 0)
+            {
+                /* load Lua script */
+                if ((strstr (argv[1], "/")) || (strstr (argv[1], "\\")))
+                    path_script = NULL;
+                else
+                {
+                    dir_home = plugin->get_info (plugin, "weechat_dir", NULL);
+                    if (dir_home)
+                    {
+                        path_length = strlen (dir_home) + strlen (argv[1]) + 16;
+                        path_script = (char *) malloc (path_length * sizeof (char));
+                        if (path_script)
+                            snprintf (path_script, path_length, "%s/lua/%s",
+                                      dir_home, argv[1]);
+                        else
+                            path_script = NULL;
+                        free (dir_home);
+                    }
+                    else
+                        path_script = NULL;
+                }
+                weechat_lua_load (plugin, (path_script) ? path_script : argv[1]);
+                if (path_script)
+                    free (path_script);
+            }
+            else if (plugin->ascii_strcasecmp (plugin, argv[0], "unload") == 0)
+            {
+                /* unload Lua script */
+                weechat_lua_unload_name (plugin, argv[1]);
+            }
+            else
+            {
+                plugin->printf_server (plugin,
+                                       "Lua error: unknown option for "
+                                       "\"lua\" command");
+            }
+            break;
+        default:
+            plugin->printf_server (plugin,
+                                   "Lua error: wrong argument count for \"lua\" command");
+    }
+    
+    if (argv)
+        plugin->free_exploded_string (plugin, argv);
+    
+    return 1;
+}
+
+/*
+ * weechat_plugin_init: initialize Lua plugin
+ */
+
+int
+weechat_plugin_init (t_weechat_plugin *plugin)
+{
+    
+    lua_plugin = plugin;
+    
+    plugin->printf_server (plugin, "Loading Lua module \"weechat\"");
+        
+    plugin->cmd_handler_add (plugin, "lua",
+                             "list/load/unload Lua scripts",
+                             "[load filename] | [autoload] | [reload] | [unload]",
+                             "filename: Lua script (file) to load\n\n"
+                             "Without argument, /lua command lists all loaded Lua scripts.",
+                             "load|autoload|reload|unload",
+                             weechat_lua_cmd, NULL, NULL);
+
+    plugin->mkdir_home (plugin, "lua");
+    plugin->mkdir_home (plugin, "lua/autoload");
+    
+    weechat_script_auto_load (plugin, "lua", weechat_lua_load);
+    
+    /* init ok */
+    return PLUGIN_RC_OK;
+}
+
+/*
+ * weechat_plugin_end: shutdown Lua interface
+ */
+
+void
+weechat_plugin_end (t_weechat_plugin *plugin)
+{
+    /* unload all scripts */
+    weechat_lua_unload_all (plugin);
+    
+    lua_plugin->printf_server (lua_plugin,
+                                  "Lua plugin ended");
+}