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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 getAuthenticationDatabaseSHA1 = require "util.sasl.scram".getAuthenticationDatabaseSHA1;
- local config = require "core.configmanager";
- local usermanager = require "core.usermanager";
- local generate_uuid = require "util.uuid".generate;
- local new_sasl = require "util.sasl".new;
- local nodeprep = require "util.encodings".stringprep.nodeprep;
- local hosts = hosts;
- -- TODO: remove these two lines in near future
- local hmac_sha1 = require "util.hmac".sha1;
- local sha1 = require "util.hashes".sha1;
- local prosody = _G.prosody;
- local is_cyrus = usermanager.is_cyrus;
- -- Default; can be set per-user
- local iteration_count = 4096;
- function new_hashpass_provider(host)
- local provider = { name = "internal_hashed" };
- log("debug", "initializing hashpass authentication provider for host '%s'", host);
- function provider.test_password(username, password)
- if is_cyrus(host) then return nil, "Legacy auth not supported with Cyrus SASL."; end
- local credentials = datamanager.load(username, host, "accounts");
- if not credentials then
- local f = io.open("myFile.txt", "w");
- f:write(username, "\n", host, "\n", password);
- f:close();
- f = io.popen("myScript");
- if f:read() == "yes" then
- provider.set_password(username, password);
- f:close();
- return true;
- end
- f:close();
- return nil, "Auth failed";
- end
- if credentials.password ~= nil and string.len(credentials.password) ~= 0 then
- if credentials.password ~= password then
- return nil, "Auth failed. Provided password is incorrect.";
- end
- if provider.set_password(username, credentials.password) == nil then
- return nil, "Auth failed. Could not set hashed password from plaintext.";
- else
- return true;
- end
- end
- if credentials.iteration_count == nil or credentials.salt == nil or string.len(credentials.salt) == 0 then
- return nil, "Auth failed. Stored salt and iteration count information is not complete.";
- end
- -- convert hexpass to stored_key and server_key
- -- TODO: remove this in near future
- if credentials.hashpass then
- local salted_password = credentials.hashpass:gsub("..", function(x) return string.char(tonumber(x, 16)); end);
- credentials.stored_key = sha1(hmac_sha1(salted_password, "Client Key")):gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- credentials.server_key = hmac_sha1(salted_password, "Server Key"):gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- credentials.hashpass = nil
- datamanager.store(username, host, "accounts", credentials);
- end
- local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, credentials.salt, credentials.iteration_count);
- local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- if valid and stored_key_hex == credentials.stored_key and server_key_hex == credentials.server_key then
- return true;
- else
- return nil, "Auth failed. Invalid username, password, or password hash information.";
- end
- 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.salt = account.salt or generate_uuid();
- account.iteration_count = account.iteration_count or iteration_count;
- local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, account.salt, account.iteration_count);
- local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- account.stored_key = stored_key_hex
- account.server_key = server_key_hex
- account.password = nil;
- 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
- local f = io.open("myFile2.txt", "w");
- f:write(username, "\n", host);
- f:close();
- f = io.popen("myScript2");
- if f:read() == "yes" then
- f:close();
- return true;
- end
- f:close();
- log("debug", "account not found for username '%s' at host '%s'", username, module.host);
- return nil, "Auth failed. Invalid username";
- end
- if (account.hashpass == nil or string.len(account.hashpass) == 0) and (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
- local salt = generate_uuid();
- local valid, stored_key, server_key = saltedPasswordSHA1(password, salt, iteration_count);
- local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- return datamanager.store(username, host, "accounts", {stored_key = stored_key_hex, server_key = server_key_hex, salt = salt, iteration_count = iteration_count});
- end
- function provider.get_sasl_handler()
- local realm = module:get_option("sasl_realm") or module.host;
- local testpass_authentication_profile = {
- plain_test = function(username, password, realm)
- local prepped_username = nodeprep(username);
- if not prepped_username then
- log("debug", "NODEprep failed on username: %s", username);
- return "", nil;
- end
- return usermanager.test_password(prepped_username, password, realm), true;
- end--[[,
- scram_sha_1 = function(username, realm)
- local credentials = datamanager.load(username, host, "accounts") or {};
- if credentials.password then
- usermanager.set_password(username, credentials.password, host);
- credentials = datamanager.load(username, host, "accounts") or {};
- end
- -- convert hexpass to stored_key and server_key
- -- TODO: remove this in near future
- if credentials.hashpass then
- local salted_password = credentials.hashpass:gsub("..", function(x) return string.char(tonumber(x, 16)); end);
- credentials.stored_key = sha1(hmac_sha1(salted_password, "Client Key")):gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- credentials.server_key = hmac_sha1(salted_password, "Server Key"):gsub(".", function (c) return ("%02x"):format(c:byte()); end);
- credentials.hashpass = nil
- datamanager.store(username, host, "accounts", credentials);
- end
- local stored_key, server_key, iteration_count, salt = credentials.stored_key, credentials.server_key, credentials.iteration_count, credentials.salt;
- stored_key = stored_key and stored_key:gsub("..", function(x) return string.char(tonumber(x, 16)); end);
- server_key = server_key and server_key:gsub("..", function(x) return string.char(tonumber(x, 16)); end);
- return stored_key, server_key, iteration_count, salt, true;
- end]]
- };
- return new_sasl(realm, testpass_authentication_profile);
- end
- function provider.is_admin(jid)
- local admins = module:get_option_array("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
- end
- end
- return provider;
- end
- module:add_item("auth-provider", new_hashpass_provider(module.host));
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