unify smb + hotspot password change

lua/core/menu/system.lua

@@ -47,8 +47,19 @@ m.deinit = norns.none
 
 m.passdone = function(txt)
   if txt ~= nil then
-    local status = os.execute("echo 'we:"..txt.."' | sudo chpasswd")
-    if status then print("password changed") end
+    local chpasswd_status = os.execute("echo 'we:"..txt.."' | sudo chpasswd")
+    local smbpasswd_status = os.execute("printf '"..txt.."\n"..txt.."\n' | sudo smbpasswd -a we")
+    local hotspotpasswd_status;
+    local fd = io.open(norns.state.path.."/data/.system.hotspot_password", "w+")
+    if fd then
+      io.output(fd)
+      io.write(txt)
+      io.close(fd)
+      hotspotpasswd_status = true
+    end
+    if chpasswd_status then print("ssh password changed") end
+    if smbpasswd_status then print("samba password changed") end
+    if hotspotpasswd_status then print("hotspot password changed") end
   end
   _menu.set_page("SYSTEM")
 end

lua/core/wifi.lua

@@ -6,12 +6,24 @@ local util = require "util"
 --
 
 local HOTSPOT = "Hotspot"
-local hotspot_password = "nnnnnnnn"
 
 --
 -- common functions
 --
 
+local function get_hotspot_password()
+  local hotspot_password;
+  local fd = io.open(norns.state.data..".system.hotspot_password", "r")
+  if fd then
+    io.input(fd)
+    hotspot_password = io.read()
+    io.close(fd)
+  else
+    hotspot_password = "nnnnnnnn"
+  end
+  return hotspot_password
+end
+
 local function collect_info(cmd)
   local info = {}
   local output = util.os_capture(cmd, true)
@@ -192,7 +204,7 @@ function Wifi.hotspot()
   print("activating hotspot")
   Wifi.ensure_radio_is_on()
   os.execute("nmcli c delete Hotspot")
-  os.execute("nmcli dev wifi hotspot ifname wlan0 ssid $(hostname) password " .. hotspot_password)
+  os.execute("nmcli dev wifi hotspot ifname wlan0 ssid $(hostname) password " .. get_hotspot_password())
 end
 
 function Wifi.on(connection)