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--[[ ACF Logon/Logoff authenticator that uses plaintext files
Copyright (c) 2007 Nathan Angelacos
GPL2 license
Rather than come up with a way to name fields in the plaintext files, we
create a different file for each field.
]]--
module (..., package.seeall)
read_field = function(self, tabl, field)
if not tabl or tabl == "" or not field then
return nil
end
local row = {}
-- open our password file
local passwd_path = self.conf.confdir .. field .. tabl
local f = io.open(passwd_path)
if f then
local m = (f:read("*all") or "" ).. "\n"
f:close()
for l in string.gmatch(m, "([^\n]+)\n?") do
local a = {}
a.id, a.entry = string.match(l, "^([^:]*):(.*)")
table.insert(row, a)
end
return row
else
return nil
end
end
delete_field = function(self, tabl, field)
if not tabl or tabl == "" or not field then
return false
end
local passwd_path = self.conf.confdir .. field .. tabl
os.remove(passwd_path)
return true
end
write_entry = function(self, tabl, field, id, entry)
if not self or not tabl or tabl == "" or not field or not id or not entry then
return false
end
delete_entry(self, tabl, field, id)
-- Set path to passwordfile
local passwd_path = self.conf.confdir .. field .. tabl
-- Write the newline into the file
if fs.is_file(passwd_path) == false then fs.create_file(passwd_path) end
if fs.is_file(passwd_path) == false then return false end
fs.write_line_file(passwd_path, id .. ":" .. entry)
return true
end
read_entry = function(self, tabl, field, id)
if not self or not tabl or tabl == "" or not field or not id then
return nil
end
-- Set path to passwordfile
local passwd_path = self.conf.confdir .. field .. tabl
local passwdfilecontent = fs.read_file_as_array(passwd_path) or {}
local entry
for k,v in pairs(passwdfilecontent) do
if string.match(v, "^".. id .. ":") then
return string.match(v, "^"..id..":(.*)")
end
end
return nil
end
delete_entry = function (self, tabl, field, id)
if not self or not tabl or tabl == "" or not field or not id then
return false
end
local result = false
local passwd_path = self.conf.confdir .. field .. tabl
local passwdfilecontent = fs.read_file_as_array(passwd_path) or {}
local output = {}
for k,v in pairs(passwdfilecontent) do
if not ( string.match(v, "^".. id .. ":") ) and not string.match(v, "^%s*$") then
table.insert(output, v)
else
result = true
end
end
--Save the updated table
if result == true then
fs.write_file(passwd_path, table.concat(output,"\n"))
end
return result
end
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