Merge 0.7->trunk
[prosody.git] / plugins / mod_register.lua
index f9e85ffff4fb9ab17010495f4fdfd9555ddfa724..14b134c7f5b5c5641eabf72c2ef17b6b327f7b23 100644 (file)
@@ -1,30 +1,23 @@
--- Prosody IM v0.1
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
 -- 
--- This program is free software; you can redistribute it and/or
--- modify it under the terms of the GNU General Public License
--- as published by the Free Software Foundation; either version 2
--- of the License, or (at your option) any later version.
--- 
--- This program is distributed in the hope that it will be useful,
--- but WITHOUT ANY WARRANTY; without even the implied warranty of
--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--- GNU General Public License for more details.
--- 
--- You should have received a copy of the GNU General Public License
--- along with this program; if not, write to the Free Software
--- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
 --
 
 
-
+local hosts = _G.hosts;
 local st = require "util.stanza";
+local datamanager = require "util.datamanager";
 local usermanager_user_exists = require "core.usermanager".user_exists;
 local usermanager_create_user = require "core.usermanager".create_user;
+local usermanager_set_password = require "core.usermanager".set_password;
 local datamanager_store = require "util.datamanager".store;
+local os_time = os.time;
+local nodeprep = require "util.encodings".stringprep.nodeprep;
 
-require "core.discomanager".set("register", "jabber:iq:register");
+module:add_feature("jabber:iq:register");
 
 module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza)
        if stanza.tags[1].name == "query" then
@@ -39,42 +32,46 @@ module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza)
                elseif stanza.attr.type == "set" then
                        if query.tags[1] and query.tags[1].name == "remove" then
                                -- TODO delete user auth data, send iq response, kick all user resources with a <not-authorized/>, delete all user data
+                               local username, host = session.username, session.host;
                                --session.send(st.error_reply(stanza, "cancel", "not-allowed"));
                                --return;
-                               usermanager_create_user(session.username, nil, session.host); -- Disable account
+                               usermanager_set_password(username, nil, host); -- Disable account
                                -- FIXME the disabling currently allows a different user to recreate the account
                                -- we should add an in-memory account block mode when we have threading
                                session.send(st.reply(stanza));
                                local roster = session.roster;
-                               for _, session in pairs(hosts[session.host].sessions[session.username].sessions) do -- disconnect all resources
-                                       session:disconnect({condition = "not-authorized", text = "Account deleted"});
+                               for _, session in pairs(hosts[host].sessions[username].sessions) do -- disconnect all resources
+                                       session:close({condition = "not-authorized", text = "Account deleted"});
                                end
                                -- TODO datamanager should be able to delete all user data itself
-                               datamanager.store(session.username, session.host, "roster", nil);
-                               datamanager.store(session.username, session.host, "vCard", nil);
-                               datamanager.store(session.username, session.host, "private", nil);
-                               datamanager.store(session.username, session.host, "offline", nil);
-                               local bare = session.username.."@"..session.host;
+                               datamanager.store(username, host, "vcard", nil);
+                               datamanager.store(username, host, "private", nil);
+                               datamanager.list_store(username, host, "offline", nil);
+                               local bare = username.."@"..host;
                                for jid, item in pairs(roster) do
-                                       if jid ~= "pending" then
-                                               if item.subscription == "both" or item.subscription == "to" then
-                                                       -- TODO unsubscribe
+                                       if jid and jid ~= "pending" then
+                                               if item.subscription == "both" or item.subscription == "from" or (roster.pending and roster.pending[jid]) then
+                                                       core_post_stanza(hosts[host], st.presence({type="unsubscribed", from=bare, to=jid}));
                                                end
-                                               if item.subscription == "both" or item.subscription == "from" then
-                                                       -- TODO unsubscribe
+                                               if item.subscription == "both" or item.subscription == "to" or item.ask then
+                                                       core_post_stanza(hosts[host], st.presence({type="unsubscribe", from=bare, to=jid}));
                                                end
                                        end
                                end
-                               datamanager.store(session.username, session.host, "accounts", nil); -- delete accounts datastore at the end
+                               datamanager.store(username, host, "roster", nil);
+                               datamanager.store(username, host, "privacy", nil);
+                               datamanager.store(username, host, "accounts", nil); -- delete accounts datastore at the end
+                               module:log("info", "User removed their account: %s@%s", username, host);
+                               module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
                        else
                                local username = query:child_with_name("username");
                                local password = query:child_with_name("password");
                                if username and password then
                                        -- FIXME shouldn't use table.concat
-                                       username = table.concat(username);
+                                       username = nodeprep(table.concat(username));
                                        password = table.concat(password);
                                        if username == session.username then
-                                               if usermanager_create_user(username, password, session.host) then -- password change -- TODO is this the right way?
+                                               if usermanager_set_password(username, password, session.host) then
                                                        session.send(st.reply(stanza));
                                                else
                                                        -- TODO unable to write file, file may be locked, etc, what's the correct error?
@@ -93,8 +90,19 @@ module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza)
        end;
 end);
 
+local recent_ips = {};
+local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations");
+local whitelist_only = module:get_option("whitelist_registration_only");
+local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" };
+local blacklisted_ips = module:get_option("registration_blacklist") or {};
+
+for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end
+for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end
+
 module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, stanza)
-       if stanza.tags[1].name == "query" then
+       if module:get_option("allow_registration") == false then
+               session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
+       elseif stanza.tags[1].name == "query" then
                local query = stanza.tags[1];
                if stanza.attr.type == "get" then
                        local reply = st.reply(stanza);
@@ -110,17 +118,45 @@ module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, s
                                local username = query:child_with_name("username");
                                local password = query:child_with_name("password");
                                if username and password then
+                                       -- Check that the user is not blacklisted or registering too often
+                                       if not session.ip then
+                                               module:log("debug", "User's IP not known; can't apply blacklist/whitelist");
+                                       elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then
+                                               session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account."));
+                                               return;
+                                       elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then
+                                               if not recent_ips[session.ip] then
+                                                       recent_ips[session.ip] = { time = os_time(), count = 1 };
+                                               else
+                                                       local ip = recent_ips[session.ip];
+                                                       ip.count = ip.count + 1;
+                                                       
+                                                       if os_time() - ip.time < min_seconds_between_registrations then
+                                                               ip.time = os_time();
+                                                               session.send(st.error_reply(stanza, "wait", "not-acceptable"));
+                                                               return;
+                                                       end
+                                                       ip.time = os_time();
+                                               end
+                                       end
                                        -- FIXME shouldn't use table.concat
-                                       username = table.concat(username);
+                                       username = nodeprep(table.concat(username));
                                        password = table.concat(password);
-                                       if usermanager_user_exists(username, session.host) then
-                                               session.send(st.error_reply(stanza, "cancel", "conflict"));
+                                       local host = module.host;
+                                       if not username or username == "" then
+                                               session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid."));
+                                       elseif usermanager_user_exists(username, host) then
+                                               session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists."));
                                        else
-                                               if usermanager_create_user(username, password, session.host) then
+                                               if usermanager_create_user(username, password, host) then
                                                        session.send(st.reply(stanza)); -- user created!
+                                                       module:log("info", "User account created: %s@%s", username, host);
+                                                       module:fire_event("user-registered", { 
+                                                               username = username, host = host, source = "mod_register",
+                                                               session = session });
                                                else
                                                        -- TODO unable to write file, file may be locked, etc, what's the correct error?
-                                                       session.send(st.error_reply(stanza, "wait", "internal-server-error"));
+                                                       session.send(st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk."));
                                                end
                                        end
                                else
@@ -132,3 +168,4 @@ module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, s
                session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
        end;
 end);
+