wireshark/epan/wslua/console.lua

98 lines
2.4 KiB
Lua

-- console
-- A console and a window to execute commands in lua
--
-- (c) 2006 Luis E. Garcia Ontanon <luis@ontanon.org>
--
-- Wireshark - Network traffic analyzer
-- By Gerald Combs <gerald@wireshark.org>
-- Copyright 1998 Gerald Combs
--
-- SPDX-License-Identifier: GPL-2.0-or-later
if (gui_enabled()) then
-- Note that everything is "local" to this "if then"
-- this way we don't add globals
-- Evaluate Window
local function evaluate_lua()
local w = TextWindow.new("Evaluate Lua")
w:set_editable()
-- button callback
local function eval()
-- get the window's text and remove the result
local text = string.gsub(w:get_text(),"%c*--%[%[.*--%]%]$","")
-- if the text begins with '=' then convert = into return
text = string.gsub(text,"^=","return ")
-- evaluate text
local result = assert(loadstring(text))()
if (result ~= nil) then
w:set(text .. '\n\n--[[ Result:\n' .. result .. '\n--]]')
else
w:set(text .. '\n\n--[[ Evaluated --]]')
end
end
w:add_button("Evaluate",eval)
end
local console_open = false
local date = rawget(os,"date") -- use rawget to avoid disabled's os.__index
if type(date) ~= "function" then
-- 'os' has been disabled, use a dummy function for date
date = function() return "" end
end
-- Console Window
local function run_console()
if console_open then return end
console_open = true
local w = TextWindow.new("Console")
-- save original logger functions
local orig_print = print
-- define new logger functions that append text to the window
function print(...)
local arg = {...}
local n = #arg
w:append(date() .. " ")
for i=1, n do
if i > 1 then w:append("\t") end
w:append(tostring(arg[i]))
end
w:append("\n")
end
-- when the window gets closed restore the original logger functions
local function at_close()
print = old_print
console_open = false
end
w:set_atclose(at_close)
print("Console opened")
end
function ref_manual()
browser_open_url("https://www.wireshark.org/docs/wsdg_html_chunked/wsluarm.html")
end
function wiki_page()
browser_open_url("https://gitlab.com/wireshark/wireshark/-/wikis/Lua")
end
register_menu("Lua/Evaluate", evaluate_lua, MENU_TOOLS_UNSORTED)
register_menu("Lua/Console", run_console, MENU_TOOLS_UNSORTED)
register_menu("Lua/Manual", ref_manual, MENU_TOOLS_UNSORTED)
register_menu("Lua/Wiki", wiki_page, MENU_TOOLS_UNSORTED)
end