--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_auth_ha1/mod_auth_ha1.lua Sat Jul 26 21:53:52 2014 +0100
@@ -0,0 +1,101 @@
+-- Prosody IM
+-- Copyright (C) 2014 Matthew Wild
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+local usermanager = require "core.usermanager";
+local new_sasl = require "util.sasl".new;
+
+local nodeprep = require "util.encodings".stringprep.nodeprep;
+local nameprep = require "util.encodings".stringprep.nameprep;
+local md5 = require "util.hashes".md5;
+
+local host = module.host;
+
+local auth_filename = module:get_option_string("auth_ha1_file", "auth.txt");
+local auth_data = {};
+
+function reload_auth_data()
+ local f, err = io.open(auth_filename);
+ if not f then
+ module:log("error", "Failed to read from auth file: %s", err);
+ return;
+ end
+ auth_data = {};
+ local line_number, imported_count, not_authorized_count = 0, 0, 0;
+ for line in f:lines() do
+ line_number = line_number + 1;
+ local username, hash, realm, state = line:match("^([^:]+):(%x+):([^:]+):(.+)$");
+ if not username then
+ module:log("error", "Unable to parse line %d of auth file, skipping", line_number);
+ else
+ username, realm = nodeprep(username), nameprep(realm);
+ if not username then
+ module:log("error", "Invalid username on line %d of auth file, skipping", line_number);
+ elseif not realm then
+ module:log("error", "Invalid hostname/realm on line %d of auth file, skipping", line_number);
+ elseif state ~= "authorized" then
+ not_authorized_count = not_authorized_count + 1;
+ elseif realm == host then
+ auth_data[username] = hash;
+ imported_count = imported_count + 1;
+ end
+ end
+ end
+ f:close();
+ module:log("debug", "Loaded %d accounts from auth file (%d authorized)", imported_count, imported_count-not_authorized_count);
+end
+
+function module.load()
+ reload_auth_data();
+end
+
+module:hook_global("config-reloaded", reload_auth_data);
+
+-- define auth provider
+local provider = {};
+
+function provider.test_password(username, password)
+ module:log("debug", "test password for user %s at host %s, %s", username, host, password);
+
+ local test_hash = md5(username..":"..host..":"..password, true);
+
+ if test_hash == auth_data[username] then
+ return true;
+ else
+ return nil, "Auth failed. Invalid username or password.";
+ end
+end
+
+function provider.set_password(username, password)
+ return nil, "Changing passwords not supported";
+end
+
+function provider.user_exists(username)
+ if not auth_data[username] then
+ module: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 nil, "User creation not supported";
+end
+
+function provider.delete_user(username)
+ return nil , "User deletion not supported";
+end
+
+function provider.get_sasl_handler()
+ return new_sasl(host, {
+ plain_test = function(sasl, username, password, realm)
+ return usermanager.test_password(username, realm, password), true;
+ end
+ });
+end
+
+module:provides("auth", provider);
+