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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- Copyright (C) 2010 Jeff Mitchell
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local datamanager = require "util.datamanager";
local log = require "util.logger".init("usermanager");
local type = type;
local error = error;
local ipairs = ipairs;
local hashes = require "util.hashes";
local jid_bare = require "util.jid".bare;
local config = require "core.configmanager";
local usermanager = require "core.usermanager";
local new_sasl = require "util.sasl".new;
local nodeprep = require "util.encodings".stringprep.nodeprep;
local hosts = hosts;
local prosody = _G.prosody;
local is_cyrus = usermanager.is_cyrus;
function new_default_provider(host)
local provider = { name = "internal" };
log("debug", "initializing default 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, module.host);
if is_cyrus(host) then return nil, "Legacy auth not supported with Cyrus SASL."; end
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, module.host);
if is_cyrus(host) then return nil, "Passwords unavailable for Cyrus SASL."; end
return (datamanager.load(username, host, "accounts") or {}).password;
end
function provider.set_password(username, password)
if is_cyrus(host) then return nil, "Passwords unavailable for Cyrus SASL."; end
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)
if is_cyrus(host) then return true; end
local account = datamanager.load(username, host, "accounts");
if not account then
log("debug", "account not found for username '%s' at host '%s'", username, module.host);
return nil, "Auth failed. Invalid username";
end
if account.password == nil or string.len(account.password) == 0 then
log("debug", "account password not set or zero-length for username '%s' at host '%s'", username, module.host);
return nil, "Auth failed. Password invalid.";
end
return true;
end
function provider.create_user(username, password)
if is_cyrus(host) then return nil, "Account creation/modification not available with Cyrus SASL."; end
return datamanager.store(username, host, "accounts", {password = password});
end
function provider.get_sasl_handler()
local realm = module:get_option("sasl_realm") or module.host;
local getpass_authentication_profile = {
plain = function(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(realm, getpass_authentication_profile);
end
function provider.is_admin(jid)
local admins = config.get(host, "core", "admins");
if admins ~= config.get("*", "core", "admins") and type(admins) == "table" then
jid = jid_bare(jid);
for _,admin in ipairs(admins) do
if admin == jid then return true; end
end
elseif admins then
log("error", "Option 'admins' for host '%s' is not a table", host);
end
return is_admin(jid); -- Test whether it's a global admin instead
end
return provider;
end
module:add_item("auth-provider", new_default_provider(module.host));
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