Adding a file browser, file text editor and tty command shell for LuCI OpenWrt

This thread is initially about adding file browser, text editor and a console to openwrt's web interface.

Adding a uci configurator would be a nice to have, but already covered by having a functionnal console in the web interface.

And making this discussion about the metadata of the validator of the uci configurator of the web interface, sounds to me like a derailment.

But sure, I can answer that

So the metadata, it's in the wiki already, and it's really nicely formatted.
A simple trip to chatgpt and it can be turned into machine readable code.

Here for example the fstab config

Here is what it looks like out of uci


So anyway, the wiki data is already so clean we can somewhat easily turn it into machine readable metadata using a large language model like chatgpt

I did a few of the config.sections in this file

Tried to get chatgpt to spit out a script to read it but I just did my first lua hello world a few minutes ago and this doesn't work out of the box

local uci_metadata_file = "uci.metadata"

local function get_metadata(section, option, property)
    local metadata = {}
    for line in io.lines(uci_metadata_file) do
        local s = line:match("^%s*%[(.-)%]") -- section
        if s and s == section then
            local opt, optdata = line:match("^%s*(%S+)%s*=%s*(%b{})")
            if opt and opt == option then
                optdata = optdata:gsub("[{}%s\"]", ""):gsub(",", "\n")
                for k, v in optdata:gmatch("([%w_]+)%s*=%s*([^%s]+)") do
                    metadata[k] = v
    return metadata[property]

-- example usage
local section = arg[1]
local option = arg[2]
local property = arg[3]
local value = get_metadata(section, option, property)

but it's probably close to working

root@router:~# lua read.uci.metadata.lua dropbear.dropbear verbose description
Set to 1 to enable verbose output by the start script.

This metadata database would weight in at something like 250kb uncompressed

While opkg update downloads

     3 -rw-r--r--    1 root     root        3.4K Mar 24 19:55 Packages.gz
    88 -rw-r--r--    1 root     root       87.7K Jan  4 23:19 Packages.gz.1
    88 -rw-r--r--    1 root     root       87.7K Jan  4 23:19 Packages.gz.2
    61 -rw-r--r--    1 root     root       61.1K Mar 21 20:38 Packages.gz.3
   176 -rw-r--r--    1 root     root      176.0K Mar 21 20:38 Packages.gz.4
   453 -rw-r--r--    1 root     root      453.4K Mar 21 20:39 Packages.gz.5
    12 -rw-r--r--    1 root     root       12.0K Mar 21 20:40 Packages.gz.6
    57 -rw-r--r--    1 root     root       57.2K Mar 21 20:40 Packages.gz.7

So that's not something too crazy to download each time a user would use the uci configurator, which presumably would be far less often than how often a user runs opkg update.

And if there's enough free space on the device, you just leave it there