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|
----------------------------
-- Authentication configuration file
--
-- Defines the method and details of the authentication mechanism
--
-- $Id: authentication_conf.lua,v 1.1 2007/12/05 18:40:17 carregal Exp $
----------------------------
require"cgilua.authentication"
local options = {
-- Authentication method: "simpledatabase", "webserver", "ldap", "test"
method = "test",
-- How Authentication is stored on the client
-- This directive can be "cookie" or "url"
tokenPersistence="url",
-- Name used for the token persitence
tokenName = "userhash",
-- The criptografic key to encode user information on cookies and URLs
criptKey="sfdtdyedbbg",
-- Where to redirect when authentication is needed
-- checkURL="https://remotehost/sso/authenticate", -- absolute URL
checkURL="check.lua", -- authentication controller used by app.lua
}
--
-- Simple database authentication parameters
--
options.simpledatabase = {
driver="mysql", -- "mysql","oracle","odbc"
sourcename="users",
dbusername="root",
dbpassword="pass",
passwd_hash_function=(require"md5") and md5.sumhexa, -- for MD5 encription
-- passwd_hash_function = function(arg) return arg end , -- for no encription
users_table="Users",
user_name_field="Name",
pass_field="Password",
}
--
-- Web Server authentication parameters
--
options.webserver = {
user_env_var="REMOTE_USER", -- if supports RFC 931 use "REMOTE_IDENT"
}
--
-- LDAP authentication parameters
--
options.ldap = {
host="127.0.0.1", -- accepts host:port
usetls=false,
--baseDN="ou=People,dc=example,dc=com",
baseDN="dc=example,dc=com",
RDNatributeName="cn",
}
local methods = {
simpledatabase = {},
webserver = {},
ldap = {},
test = {},
}
--
-- Simple database authentication method
--
methods.simpledatabase.check = function(username,userpasswd)
local simpledatabase = options.simpledatabase
require ("luasql."..simpledatabase.driver)
local query = "SELECT "..simpledatabase.pass_field.." FROM "..simpledatabase.users_table.." WHERE "..simpledatabase.user_name_field.." = '"..username.."'"
local conn,err = luasql[simpledatabase.driver]:connect(simpledatabase.sourcename,simpledatabase.dbusername,simpledatabase.dbpassword)
if conn == nil then
return false, err
end
local cur=conn:execute(query)
local row=cur:fetch()
local retpasswd=row[simpledatabase.pass_field]
local passwdhash=simpledatabase.passwd_hash_function(userpasswd)
if retpasswd==passwdhash then
return true
end
return false, "Username and password do not match."
end
--
-- Web Server authentication method
--
methods.webserver.user = function ()
return cgilua.servervariable (options.webserver.user_env_var)
end
--
-- LDAP authentication method
--
methods.ldap.check = function(username,userpasswd)
require"lualdap"
local ld,err = options.lualdap.open_simple (options.ldap.host,
options.ldap.RDNatributeName.."="..username..","..options.ldap.baseDN,
userpasswd, options.ldap.usetls)
if ld~=nil then
return true
else
return false, err
end
end
--
-- Test authentication method
--
methods.test.check = function(username,userpasswd)
if (username == "admin") and (userpasswd == "admin") then
return true
else
return false, "Wrong user/password combination!"
end
end
cgilua.authentication.configure(options, methods)
|
