3 -- Copyright (C) 2008-2009 Matthew Wild
4 -- Copyright (C) 2008-2009 Waqas Hussain
5 -- Copyright (C) 2010 Stefan Gehn
7 -- This project is MIT/X11 licensed. Please see the
8 -- COPYING file in the source package for more information.
11 -- FIXME: XEP-0227 supports XInclude but luaexpat does not
13 -- XEP-227 elements and their current level of support:
16 -- Rosters : supported, needs testing
17 -- Offline Messages : supported, needs testing
18 -- Private XML Storage : supported, needs testing
19 -- vCards : supported, needs testing
20 -- Privacy Lists: UNSUPPORTED
21 -- http://xmpp.org/extensions/xep-0227.html#privacy-lists
22 -- mod_privacy uses dm.load(username, host, "privacy"); and stores stanzas 1:1
23 -- Incoming Subscription Requests : supported
25 package.path = package.path..";../?.lua";
26 package.cpath = package.cpath..";../?.so"; -- needed for util.pposix used in datamanager
28 -- ugly workaround for getting datamanager to work outside of prosody :(
30 prosody.platform = "unknown";
31 if os.getenv("WINDIR") then
32 prosody.platform = "windows";
33 elseif package.config:sub(1,1) == "/" then
34 prosody.platform = "posix";
37 local lxp = require "lxp";
38 local st = require "util.stanza";
39 local xmppstream = require "util.xmppstream";
40 local new_xmpp_handlers = xmppstream.new_sax_handlers;
41 local dm = require "util.datamanager"
42 dm.set_data_path("data");
44 local ns_xep227 = "http://www.xmpp.org/extensions/xep-0227.html#ns";
45 local ns_separator = xmppstream.ns_separator;
46 local ns_pattern = xmppstream.ns_pattern;
48 -----------------------------------------------------------------------
50 function store_vcard(username, host, stanza)
51 -- create or update vCard for username@host
52 local ret, err = dm.store(username, host, "vcard", st.preserialize(stanza));
53 print("["..(err or "success").."] stored vCard: "..username.."@"..host);
56 function store_password(username, host, password)
57 -- create or update account for username@host
58 local ret, err = dm.store(username, host, "accounts", {password = password});
59 print("["..(err or "success").."] stored account: "..username.."@"..host.." = "..password);
62 function store_roster(username, host, roster_items)
63 -- fetch current roster-table for username@host if he already has one
64 local roster = dm.load(username, host, "roster") or {};
65 -- merge imported roster-items with loaded roster
66 for item_tag in roster_items:childtags() do
67 -- jid for this roster-item
68 local item_jid = item_tag.attr.jid
69 -- validate item stanzas
70 if (item_tag.name == "item") and (item_jid ~= "") then
71 -- prepare roster item
72 -- TODO: is the subscription attribute optional?
73 local item = {subscription = item_tag.attr.subscription, groups = {}};
74 -- optional: give roster item a real name
75 if item_tag.attr.name then
76 item.name = item_tag.attr.name;
78 -- optional: iterate over group stanzas inside item stanza
79 for group_tag in item_tag:childtags() do
80 local group_name = group_tag:get_text();
81 if (group_tag.name == "group") and (group_name ~= "") then
82 item.groups[group_name] = true;
84 print("[error] invalid group stanza: "..group_tag:pretty_print());
87 -- store item in roster
88 roster[item_jid] = item;
89 print("[success] roster entry: " ..username.."@"..host.." - "..item_jid);
91 print("[error] invalid roster stanza: " ..item_tag:pretty_print());
95 -- store merged roster-table
96 local ret, err = dm.store(username, host, "roster", roster);
97 print("["..(err or "success").."] stored roster: " ..username.."@"..host);
100 function store_private(username, host, private_items)
101 local private = dm.load(username, host, "private") or {};
102 for ch in private_items:childtags() do
103 --print("private :"..ch:pretty_print());
104 private[ch.name..":"..ch.attr.xmlns] = st.preserialize(ch);
105 print("[success] private item: " ..username.."@"..host.." - "..ch.name);
107 local ret, err = dm.store(username, host, "private", private);
108 print("["..(err or "success").."] stored private: " ..username.."@"..host);
111 function store_offline_messages(username, host, offline_messages)
112 -- TODO: maybe use list_load(), append and list_store() instead
113 -- of constantly reopening the file with list_append()?
114 for ch in offline_messages:childtags() do
115 --print("message :"..ch:pretty_print());
116 local ret, err = dm.list_append(username, host, "offline", st.preserialize(ch));
117 print("["..(err or "success").."] stored offline message: " ..username.."@"..host.." - "..ch.attr.from);
122 function store_subscription_request(username, host, presence_stanza)
123 local from_bare = presence_stanza.attr.from;
125 -- fetch current roster-table for username@host if he already has one
126 local roster = dm.load(username, host, "roster") or {};
128 local item = roster[from_bare];
129 if item and (item.subscription == "from" or item.subscription == "both") then
130 return; -- already subscribed, do nothing
133 -- add to table of pending subscriptions
134 if not roster.pending then roster.pending = {}; end
135 roster.pending[from_bare] = true;
137 -- store updated roster-table
138 local ret, err = dm.store(username, host, "roster", roster);
139 print("["..(err or "success").."] stored subscription request: " ..username.."@"..host.." - "..from_bare);
142 -----------------------------------------------------------------------
144 local curr_host = "";
145 local user_name = "";
150 stream_ns = ns_xep227,
152 function cb.streamopened(session, attr)
153 session.notopen = false;
154 user_name = attr.name;
155 store_password(user_name, curr_host, attr.password);
157 function cb.streamclosed(session)
158 session.notopen = true;
161 function cb.handlestanza(session, stanza)
162 --print("Parsed stanza "..stanza.name.." xmlns: "..(stanza.attr.xmlns or ""));
163 if (stanza.name == "vCard") and (stanza.attr.xmlns == "vcard-temp") then
164 store_vcard(user_name, curr_host, stanza);
165 elseif (stanza.name == "query") then
166 if (stanza.attr.xmlns == "jabber:iq:roster") then
167 store_roster(user_name, curr_host, stanza);
168 elseif (stanza.attr.xmlns == "jabber:iq:private") then
169 store_private(user_name, curr_host, stanza);
171 elseif (stanza.name == "offline-messages") then
172 store_offline_messages(user_name, curr_host, stanza);
173 elseif (stanza.name == "presence") and (stanza.attr.xmlns == "jabber:client") then
174 store_subscription_request(user_name, curr_host, stanza);
176 print("UNHANDLED stanza "..stanza.name.." xmlns: "..(stanza.attr.xmlns or ""));
180 local user_handlers = new_xmpp_handlers({ notopen = true }, cb);
182 -----------------------------------------------------------------------
184 local lxp_handlers = {
188 -- TODO: error handling for invalid opening elements if curr_host is empty
189 function lxp_handlers.StartElement(parser, elementname, attributes)
190 local curr_ns, name = elementname:match(ns_pattern);
192 curr_ns, name = "", curr_ns;
194 --io.write("+ ", string.rep(" ", count), name, " (", curr_ns, ")", "\n")
196 if curr_host ~= "" then
197 -- forward to xmlhandlers
198 user_handlers:StartElement(elementname, attributes);
199 elseif (curr_ns == ns_xep227) and (name == "host") then
200 curr_host = attributes["jid"]; -- start of host element
201 print("Begin parsing host "..curr_host);
202 elseif (curr_ns ~= ns_xep227) or (name ~= "server-data") then
203 io.stderr:write("Unhandled XML element: ", name, "\n");
208 -- TODO: error handling for invalid closing elements if host is empty
209 function lxp_handlers.EndElement(parser, elementname)
210 local curr_ns, name = elementname:match(ns_pattern);
212 curr_ns, name = "", curr_ns;
215 --io.write("- ", string.rep(" ", count), name, " (", curr_ns, ")", "\n")
216 if curr_host ~= "" then
217 if (curr_ns == ns_xep227) and (name == "host") then
218 print("End parsing host "..curr_host);
219 curr_host = "" -- end of host element
221 -- forward to xmlhandlers
222 user_handlers:EndElement(elementname);
224 elseif (curr_ns ~= ns_xep227) or (name ~= "server-data") then
225 io.stderr:write("Unhandled XML element: ", name, "\n");
230 function lxp_handlers.CharacterData(parser, string)
231 if curr_host ~= "" then
232 -- forward to xmlhandlers
233 user_handlers:CharacterData(string);
237 -----------------------------------------------------------------------
240 local help = "/? -? ? /h -h /help -help --help";
241 if not arg or help:find(arg, 1, true) then
242 print([[XEP-227 importer for Prosody
244 Usage: xep227toprosody.lua filename.xml
250 local file = io.open(arg);
252 io.stderr:write("Could not open file: ", arg, "\n");
256 local parser = lxp.new(lxp_handlers, ns_separator);
257 for l in file:lines() do