plugins/mod_register.lua

   1 -- Prosody IM v0.2
   2 -- Copyright (C) 2008 Matthew Wild
   3 -- Copyright (C) 2008 Waqas Hussain
   4 --
   5 -- This program is free software; you can redistribute it and/or
   6 -- modify it under the terms of the GNU General Public License
   7 -- as published by the Free Software Foundation; either version 2
   8 -- of the License, or (at your option) any later version.
   9 --
  10 -- This program is distributed in the hope that it will be useful,
  11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 -- GNU General Public License for more details.
  14 --
  15 -- You should have received a copy of the GNU General Public License
  16 -- along with this program; if not, write to the Free Software
  17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 --
  19
  20
  21
  22 local st = require "util.stanza";
  23 local usermanager_user_exists = require "core.usermanager".user_exists;
  24 local usermanager_create_user = require "core.usermanager".create_user;
  25 local datamanager_store = require "util.datamanager".store;
  26
  27 module:add_feature("jabber:iq:register");
  28
  29 module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza)
  30         if stanza.tags[1].name == "query" then
  31                 local query = stanza.tags[1];
  32                 if stanza.attr.type == "get" then
  33                         local reply = st.reply(stanza);
  34                         reply:tag("query", {xmlns = "jabber:iq:register"})
  35                                 :tag("registered"):up()
  36                                 :tag("username"):text(session.username):up()
  37                                 :tag("password"):up();
  38                         session.send(reply);
  39                 elseif stanza.attr.type == "set" then
  40                         if query.tags[1] and query.tags[1].name == "remove" then
  41                                 -- TODO delete user auth data, send iq response, kick all user resources with a <not-authorized/>, delete all user data
  42                                 --session.send(st.error_reply(stanza, "cancel", "not-allowed"));
  43                                 --return;
  44                                 usermanager_create_user(session.username, nil, session.host); -- Disable account
  45                                 -- FIXME the disabling currently allows a different user to recreate the account
  46                                 -- we should add an in-memory account block mode when we have threading
  47                                 session.send(st.reply(stanza));
  48                                 local roster = session.roster;
  49                                 for _, session in pairs(hosts[session.host].sessions[session.username].sessions) do -- disconnect all resources
  50                                         session:disconnect({condition = "not-authorized", text = "Account deleted"});
  51                                 end
  52                                 -- TODO datamanager should be able to delete all user data itself
  53                                 datamanager.store(session.username, session.host, "roster", nil);
  54                                 datamanager.store(session.username, session.host, "vcard", nil);
  55                                 datamanager.store(session.username, session.host, "private", nil);
  56                                 datamanager.store(session.username, session.host, "offline", nil);
  57                                 local bare = session.username.."@"..session.host;
  58                                 for jid, item in pairs(roster) do
  59                                         if jid ~= "pending" then
  60                                                 if item.subscription == "both" or item.subscription == "to" then
  61                                                         -- TODO unsubscribe
  62                                                 end
  63                                                 if item.subscription == "both" or item.subscription == "from" then
  64                                                         -- TODO unsubscribe
  65                                                 end
  66                                         end
  67                                 end
  68                                 datamanager.store(session.username, session.host, "accounts", nil); -- delete accounts datastore at the end
  69                         else
  70                                 local username = query:child_with_name("username");
  71                                 local password = query:child_with_name("password");
  72                                 if username and password then
  73                                         -- FIXME shouldn't use table.concat
  74                                         username = table.concat(username);
  75                                         password = table.concat(password);
  76                                         if username == session.username then
  77                                                 if usermanager_create_user(username, password, session.host) then -- password change -- TODO is this the right way?
  78                                                         session.send(st.reply(stanza));
  79                                                 else
  80                                                         -- TODO unable to write file, file may be locked, etc, what's the correct error?
  81                                                         session.send(st.error_reply(stanza, "wait", "internal-server-error"));
  82                                                 end
  83                                         else
  84                                                 session.send(st.error_reply(stanza, "modify", "bad-request"));
  85                                         end
  86                                 else
  87                                         session.send(st.error_reply(stanza, "modify", "bad-request"));
  88                                 end
  89                         end
  90                 end
  91         else
  92                 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
  93         end;
  94 end);
  95
  96 module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, stanza)
  97         if config.get(module.host, "core", "allow_registration") == false then
  98                 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
  99         elseif stanza.tags[1].name == "query" then
 100                 local query = stanza.tags[1];
 101                 if stanza.attr.type == "get" then
 102                         local reply = st.reply(stanza);
 103                         reply:tag("query", {xmlns = "jabber:iq:register"})
 104                                 :tag("instructions"):text("Choose a username and password for use with this service."):up()
 105                                 :tag("username"):up()
 106                                 :tag("password"):up();
 107                         session.send(reply);
 108                 elseif stanza.attr.type == "set" then
 109                         if query.tags[1] and query.tags[1].name == "remove" then
 110                                 session.send(st.error_reply(stanza, "auth", "registration-required"));
 111                         else
 112                                 local username = query:child_with_name("username");
 113                                 local password = query:child_with_name("password");
 114                                 if username and password then
 115                                         -- FIXME shouldn't use table.concat
 116                                         username = table.concat(username);
 117                                         password = table.concat(password);
 118                                         if usermanager_user_exists(username, session.host) then
 119                                                 session.send(st.error_reply(stanza, "cancel", "conflict"));
 120                                         else
 121                                                 if usermanager_create_user(username, password, session.host) then
 122                                                         session.send(st.reply(stanza)); -- user created!
 123                                                 else
 124                                                         -- TODO unable to write file, file may be locked, etc, what's the correct error?
 125                                                         session.send(st.error_reply(stanza, "wait", "internal-server-error"));
 126                                                 end
 127                                         end
 128                                 else
 129                                         session.send(st.error_reply(stanza, "modify", "not-acceptable"));
 130                                 end
 131                         end
 132                 end
 133         else
 134                 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
 135         end;
 136 end);
 137