a7f00b8b41
Prevents write access to box players. Only server privs allow editing boxes outside boxes.
277 lines
7.4 KiB
Lua
277 lines
7.4 KiB
Lua
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--[[
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terminal - an interactive terminal
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]]--
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local context = {}
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local function get_cmd_params(line)
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local cmd = ""
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local params = ""
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for w in line:gmatch("%w+") do
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if cmd == "" then
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cmd = w
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elseif params == "" then
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params = w
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else
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params = params .. " " .. w
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end
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end
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return cmd, params
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end
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local help = {
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append = "append text to a file",
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clear = "clear the output",
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echo = "echoes the input back to you",
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help = "display help information for commands",
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list = "list available files",
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lock = "lock the terminal",
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read = "read the content of a file",
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remove = "removes a file",
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unlock = "unlocks the terminal",
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write = "write text to a file",
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}
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local commands = {
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clear = function(output, params, context)
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return ""
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end,
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append = function(output, params, context)
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if not context.rw then
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return output .. "\nno write access"
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end
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local what, _ = get_cmd_params(params)
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if what == "" then
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return output .. "\nMissing file name"
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end
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context.writing = what
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return output .. "\n" .. "writing \"" .. what .. "\". Enter STOP on a line by itself to finish"
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end,
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write = function(output, params, context)
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if not context.rw then
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return output .. "\nno write access"
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end
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local what, _ = get_cmd_params(params)
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if what == "" then
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return output .. "\nMissing file name"
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end
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context.writing = what
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local meta = minetest.get_meta(context.pos)
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local meta_files = meta:get_string("files")
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if meta_files and meta_files ~= "" then
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local files = minetest.parse_json(meta_files)
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if files[what] then
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files[what] = ""
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meta:set_string("files", minetest.write_json(files))
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end
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end
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return output .. "\n" .. "writing \"" .. what .. "\". Enter STOP on a line by itself to finish"
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end,
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remove = function(output, params, context)
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if not context.rw then
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return output .. "\nno write access"
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end
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local meta = minetest.get_meta(context.pos)
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local meta_files = meta:get_string("files")
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if not meta_files or meta_files == "" then
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return output .. "\nNo such file"
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end
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local files = minetest.parse_json(meta_files)
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local first, _ = get_cmd_params(params)
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if files[first] then
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files[first] = nil
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else
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return output .. "\n" .. "No such file"
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end
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meta:set_string("files", minetest.write_json(files))
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return output .. "\n" .. "removed \"" .. first .. "\""
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end,
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list = function(output, params, context)
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local meta = minetest.get_meta(context.pos)
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local meta_files = meta:get_string("files")
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local files
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if not meta_files or meta_files == "" then
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return output .. "\nNo files found"
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end
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files = minetest.parse_json(meta_files)
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if not files then
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return output .. "\nNo files found"
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end
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for k, _ in pairs(files) do
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output = output .. "\n" .. k
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end
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return output
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end,
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echo = function(output, params, context)
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return output .. "\n" .. params
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end,
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read = function(output, params, context)
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local meta = minetest.get_meta(context.pos)
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local meta_files = meta:get_string("files")
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if not meta_files or meta_files == "" then
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return output .. "\nNo such file"
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end
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local files = minetest.parse_json(meta_files)
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local first, _ = get_cmd_params(params)
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if files[first] then
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return output .. "\n" .. files[first]
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else
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return output .. "\n" .. "No such file"
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end
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return output
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end,
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lock = function(output, params, context)
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local meta = minetest.get_meta(context.pos)
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meta:set_int("locked", 1)
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return output .. "\n" .. "terminal locked"
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end,
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unlock = function(output, params, context)
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return output .. "\n" .. "unable to connect to authentication service"
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end,
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help = function(output, params, context)
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if params ~= "" then
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local h, _ = get_cmd_params(params)
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if help[h] then
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return output .. "\n" .. help[h]
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else
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return output .. "\nno help for \"" .. h .. "\""
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end
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end
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return output .. "\n" ..
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"append clear echo help list lock read remove unlock write"
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end,
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}
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local function make_formspec(output, prompt)
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local f =
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"size[12,8]" ..
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"field_close_on_enter[input;false]" ..
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"textlist[0.4,0.5;11,6;output;"
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local c = 1
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for part in output:gmatch("[^\r\n]+") do
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f = f .. minetest.formspec_escape(part) .. ","
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c = c + 1
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end
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f = f .. minetest.formspec_escape(prompt) .. ";" .. c .. ";false]"
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f = f .. "field[0.7,7;11.2,1;input;;]"
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return f
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end
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minetest.register_on_player_receive_fields(function(player, formname, fields)
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if formname ~= "terminal:" then
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return false
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end
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local line = fields.input
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if line and line ~= "" then
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local name = player:get_player_name()
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local c = context[name]
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local output = c.output or ""
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if c.writing then
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-- this shouldn't get reached, but just to be safe, check ro
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if not context.rw then
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c.writing = nil
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output = output .. "\n" .. line
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output = output .. "\nno write access"
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c.output = output
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minetest.show_formspec(name, "terminal:", make_formspec(output, "> "))
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return true
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end
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-- are we writing a file?
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if line == "STOP" then
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-- done writing a file
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c.writing = nil
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output = output .. "\n" .. line
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c.output = output
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minetest.show_formspec(name, "terminal:", make_formspec(output, "> "))
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return true
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end
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local meta = minetest.get_meta(c.pos)
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local meta_files = meta:get_string("files")
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local files = {}
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if not meta_files or meta_files == "" then
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files[c.writing] = line
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else
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files = minetest.parse_json(meta_files)
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if not files[c.writing] then
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files[c.writing] = line
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else
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files[c.writing] = files[c.writing] .. "\n" .. line
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end
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end
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meta:set_string("files", minetest.write_json(files))
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output = output .. "\n" .. line
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c.output = output
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minetest.show_formspec(name, "terminal:", make_formspec(output, ""))
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else
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-- else parse cmd
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output = output .. "\n> " .. line
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local meta = minetest.get_meta(c.pos)
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local cmd, params = get_cmd_params(line)
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if meta:get_int("locked") == 1 and cmd ~= "unlock" then
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output = output .. "\nTerminal locked, type \"unlock\" to unlock it"
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c.output = output
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minetest.show_formspec(name, "terminal:", make_formspec(output, "> "))
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return true
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end
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local fn = commands[cmd]
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if fn then
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output = fn(output, params, c)
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else
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output = output .. "\n" .. "Syntax Error"
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end
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c.output = output
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minetest.show_formspec(name, "terminal:", make_formspec(output, "> "))
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end
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end
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return true
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end)
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local terminal_use = function(pos, node, clicker, itemstack, pointed_thing)
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if not clicker then
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return
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end
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local name = clicker:get_player_name()
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context[name] = {
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pos = pos,
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rw = false,
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output = "",
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}
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if boxes.players_editing_boxes[name] or
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(not boxes.players_in_boxes[name] and minetest.check_player_privs(clicker, "server")) then
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-- allow rw access
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context[name].rw = true
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end
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-- send formspec to player
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minetest.show_formspec(name, "terminal:", make_formspec("", "> "))
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end
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minetest.register_node("terminal:terminal", {
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description = "An interactive terminal console emulator access interface unit controller",
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drawtype = "mesh",
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mesh = "terminal.obj",
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tiles = {
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{name = "terminal_base.png"},
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{name = "terminal_idle.png", animation = {type = "vertical_frames", aspect_w = 14, aspect_h = 13, length = 4.0}},
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},
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paramtype = "light",
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paramtype2 = "facedir",
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on_trigger = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_int("locked", 0)
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end,
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on_untrigger = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_int("locked", 1)
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end,
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on_rightclick = terminal_use,
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})
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