prosody
a791dd781238
util/caps.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/caps.lua @ 6239:a791dd781238

plugins/muc/mod_muc: Remove support for `host_session.muc`
author daurnimator <quae@daurnimator.com>
date Tue, 29 Apr 2014 14:50:13 -0400
parent 5776:bd0ff8ae98a8
child 6777:5de6b93d0190
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3342
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 -- Prosody IM
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 -- Copyright (C) 2008-2010 Matthew Wild
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 -- Copyright (C) 2008-2010 Waqas Hussain
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 3342
diff changeset
4 --
3342
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6 -- COPYING file in the source package for more information.
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 --
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 local base64 = require "util.encodings".base64.encode;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 local sha1 = require "util.hashes".sha1;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 local t_insert, t_sort, t_concat = table.insert, table.sort, table.concat;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 local ipairs = ipairs;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 module "caps"
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 function calculate_hash(disco_info)
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 local identities, features, extensions = {}, {}, {};
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 for _, tag in ipairs(disco_info) do
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 if tag.name == "identity" then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 t_insert(identities, (tag.attr.category or "").."\0"..(tag.attr.type or "").."\0"..(tag.attr["xml:lang"] or "").."\0"..(tag.attr.name or ""));
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 elseif tag.name == "feature" then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 t_insert(features, tag.attr.var or "");
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 elseif tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 local form = {};
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 local FORM_TYPE;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 for _, field in ipairs(tag.tags) do
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 if field.name == "field" and field.attr.var then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 local values = {};
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 for _, val in ipairs(field.tags) do
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 val = #val.tags == 0 and val:get_text();
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 if val then t_insert(values, val); end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 t_sort(values);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 if field.attr.var == "FORM_TYPE" then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 FORM_TYPE = values[1];
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 elseif #values > 0 then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 t_insert(form, field.attr.var.."\0"..t_concat(values, "<"));
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 else
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 t_insert(form, field.attr.var);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 t_sort(form);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 form = t_concat(form, "<");
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 if FORM_TYPE then form = FORM_TYPE.."\0"..form; end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 t_insert(extensions, form);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 t_sort(identities);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 t_sort(features);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 t_sort(extensions);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 if #identities > 0 then identities = t_concat(identities, "<"):gsub("%z", "/").."<"; else identities = ""; end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 if #features > 0 then features = t_concat(features, "<").."<"; else features = ""; end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55 if #extensions > 0 then extensions = t_concat(extensions, "<"):gsub("%z", "<").."<"; else extensions = ""; end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56 local S = identities..features..extensions;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 local ver = base64(sha1(S));
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 return ver, S;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61 return _M;