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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local datamanager = require "util.datamanager";
local usermanager = require "core.usermanager";
local new_sasl = require "util.sasl".new;
local nodeprep = require "util.encodings".stringprep.nodeprep;
local log = module._log;
local host = module.host;
-- define auth provider
local provider = { name = "internal_plain" };
log("debug", "initializing internal_plain authentication provider for host '%s'", host);
function provider.test_password(username, password)
log("debug", "test password '%s' for user %s at host %s", password, username, host);
local credentials = datamanager.load(username, host, "accounts") or {};
if password == credentials.password then
return true;
else
return nil, "Auth failed. Invalid username or password.";
end
end
function provider.get_password(username)
log("debug", "get_password for username '%s' at host '%s'", username, host);
return (datamanager.load(username, host, "accounts") or {}).password;
end
function provider.set_password(username, password)
local account = datamanager.load(username, host, "accounts");
if account then
account.password = password;
return datamanager.store(username, host, "accounts", account);
end
return nil, "Account not available.";
end
function provider.user_exists(username)
local account = datamanager.load(username, host, "accounts");
if not account then
log("debug", "account not found for username '%s' at host '%s'", username, host);
return nil, "Auth failed. Invalid username";
end
return true;
end
function provider.create_user(username, password)
return datamanager.store(username, host, "accounts", {password = password});
end
function provider.delete_user(username)
return datamanager.store(username, host, "accounts", nil);
end
function provider.get_sasl_handler()
local getpass_authentication_profile = {
plain = function(sasl, username, realm)
local prepped_username = nodeprep(username);
if not prepped_username then
log("debug", "NODEprep failed on username: %s", username);
return "", nil;
end
local password = usermanager.get_password(prepped_username, realm);
if not password then
return "", nil;
end
return password, true;
end
};
return new_sasl(host, getpass_authentication_profile);
end
module:add_item("auth-provider", provider);
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