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-- password model methods
local mymodule = {}
fs = require("acf.fs")
format = require("acf.format")
posix = require("posix")
mymodule.read_password = function()
pw = {}
pw.user = cfe({ label="User Name", seq=1 })
pw.password = cfe({ type="password", label="Password", seq=2 })
pw.password_confirm = cfe({ type="password", label="Password (confirm)", seq=3 })
return cfe({ type="group", value=pw, label="System Password" })
end
--setup so that it will compare password input
mymodule.update_password = function (self, pw)
local success = true
if pw.value.password.value == "" or pw.value.password.value ~= pw.value.password_confirm.value then
pw.value.password.errtxt = "Invalid or non matching password"
success = false
end
local filecontent = "\n"..(fs.read_file("/etc/shadow") or "")
if pw.value.user.value == "" or not string.find(filecontent, "\n"..pw.value.user.value..":") then
pw.value.user.errtxt = "Unknown user"
success = false
end
if success then
math.randomseed(os.time())
local randomchar = function()
local char = math.random(64)+string.byte('.')
if char > string.byte('9') then char = char + 7 end
if char > string.byte('Z') then char = char + 6 end
return string.char(char)
end
local seed = randomchar() .. randomchar()
newpass = posix.crypt(pw.value.password.value, seed)
local new = string.gsub(filecontent, "(\n"..pw.value.user.value..":)[^:]*", "%1"..newpass)
fs.write_file("/etc/shadow", string.sub(new, 2))
else
pw.errtxt = "Failed to set password"
end
return pw
end
return mymodule
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