<%-
require "luci.sys"
require "nixio.fs"
local cel_module = luci.sys.exec("uci -q get network.cellular.module | xargs echo -n") or ""
local url = luci.sys.exec("uci -q get radioupdate.general.url | xargs echo -n") or ""
local filename = luci.sys.exec("uci -q get radioupdate.general.filename | xargs echo -n") or ""
local carrier = ""
local function safe_name(name)
if not name or name == "" or #name > 200 then
return ""
end
if name:find("%.%.", 1, true) or not name:match("^[%w%._%-]+$") then
return ""
end
local ext = name:match("%.([%w]+)$")
if not ext then
return ""
end
ext = ext:lower()
if ext ~= "spk" and ext ~= "nvu" and ext ~= "cwe"
and ext ~= "zip" and ext ~= "bin" then
return ""
end
return name
end
filename = safe_name(filename)
if cel_module:match("EM74%d+") then
carrier = safe_name(luci.sys.exec("uci -q get radioupdate.general.carrier | xargs echo -n") or "")
end
-%>