prosody-modules
fda7faee7677
mod_blocking/mod_blocking.lua

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mod_blocking/mod_blocking.lua @ 161:fda7faee7677

mod_blocking: XEP-0191 Simple Communications Blocking, should work, but not tested. Requires mod_privacy be loaded.
author Matthew Wild <mwild1@gmail.com>
date Thu, 03 Jun 2010 01:56:49 +0100
child 163:9fe6d314fd07
comparison
equal deleted inserted replaced
160:9a7671720dec 161:fda7faee7677
1 module:add_feature("urn:xmpp:blocking");
2
3 -- Add JID to default privacy list
4 function add_blocked_jid(username, host, jid)
5 local privacy_lists = datamanager.load(username, host, "privacy") or {};
6 local default_list_name = privacy_lists.default;
7 if not default_list_name then
8 default_list_name = "blocklist";
9 privacy_lists.default = default_list_name;
10 end
11 local default_list = privacy_lists.list[default_list_name];
12 if not default_list then
13 default_list = { name = default_list_name, items = {} };
14 privacy_lists.lists[default_list_name] = default_list;
15 end
16 local items = default_list.items;
17 local order = items[1].order; -- Must come first
18 for i=1,#items do -- order must be unique
19 items[i].order = items[i].order + 1;
20 end
21 table.insert(items, 1, { type = "jid"
22 , action = "deny"
23 , value = jid
24 , message = false
25 , ["presence-out"] = false
26 , ["presence-in"] = false
27 , iq = false
28 , order = order
29 };
30 datamanager.store(username, host, "privacy", privacy_lists);
31 end
32
33 -- Remove JID from default privacy list
34 function remove_blocked_jid(username, host, jid)
35 local privacy_lists = datamanager.load(username, host, "privacy") or {};
36 local default_list_name = privacy_lists.default;
37 if not default_list_name then return; end
38 local default_list = privacy_lists.list[default_list_name];
39 if not default_list then return; end
40 local items = default_list.items;
41 local item;
42 for i=1,#items do -- order must be unique
43 item = items[i];
44 if item.type == "jid" and item.value == jid then
45 table.remove(items, i);
46 return true;
47 end
48 end
49 end
50
51 function get_blocked_jids(username, host)
52 -- Return array of blocked JIDs in default privacy list
53 local privacy_lists = datamanager.load(username, host, "privacy") or {};
54 local default_list_name = privacy_lists.default;
55 if not default_list_name then return {}; end
56 local default_list = privacy_lists.list[default_list_name];
57 if not default_list then return {}; end
58 local items = default_list.items;
59 local item;
60 local jid_list = {};
61 for i=1,#items do -- order must be unique
62 item = items[i];
63 if item.type == "jid" then
64 jid_list[#jid_list+1] = item.value;
65 end
66 end
67 return jid_list;
68 end
69
70 function handle_blocking_command(session, stanza)
71 local username, host = jid_split(stanza.attr.from);
72 if stanza.attr.type == "set" and stanza.tags[1].name == "block" then
73 local block = stanza.tags[1]:get_child("block");
74 local block_jid_list = {};
75 for item in block:childtags() do
76 block_jid_list[#block_jid_list+1] = item.attr.jid;
77 end
78 if #block_jid_list == 0 then
79 --FIXME: Reply bad-request
80 else
81 for _, jid in ipairs(block_jid_list) do
82 add_blocked_jid(username, host, jid);
83 end
84 session.send(st.reply(stanza));
85 end
86 elseif stanza.attr.type == "get" and stanza.tags[1].name == "blocklist" then
87 local reply = st.reply(stanza):tag("blocklist", { xmlns = xmlns_block });
88 local blocked_jids = get_blocked_jids(username, host);
89 for _, jid in ipairs(blocked_jids) do
90 reply:tag("item", { jid = jid }):up();
91 end
92 session.send(reply);
93 else
94 --FIXME: Need to respond with service-unavailable
95 end
96 end
97
98 module:add_iq_handler("c2s", xmlns_blocking, handle_blocking_command);