prosody
f15e23840780
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 @ 13124:f15e23840780

util.http: Implement parser for RFC 7239 Forwarded header Standardized and structured replacement for the X-Forwarded-For, X-Forwarded-Proto set of headers. Notably, this allows per-hop protocol information, unlike X-Forwarded-Proto which is always a single value for some reason.
author Kim Alvefur <zash@zash.se>
date Sat, 03 Jun 2023 16:15:52 +0200
parent 12975:d10957394a3c
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
12975
d10957394a3c util: Prefix module imports with prosody namespace
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
9 local base64 = require "prosody.util.encodings".base64.encode;
d10957394a3c util: Prefix module imports with prosody namespace
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
10 local sha1 = require "prosody.util.hashes".sha1;
3342
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
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
15 local _ENV = nil;
8555
4f0f5b49bb03 vairious: Add annotation when an empty environment is set [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
16 -- luacheck: std none
3342
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
18 local function calculate_hash(disco_info)
3342
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 local identities, features, extensions = {}, {}, {};
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 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
21 if tag.name == "identity" then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 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
23 elseif tag.name == "feature" then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 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
25 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
26 local form = {};
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 local FORM_TYPE;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 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
29 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
30 local values = {};
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 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
32 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
33 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
34 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 t_sort(values);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 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
37 FORM_TYPE = values[1];
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 elseif #values > 0 then
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 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
40 else
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 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
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 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 t_sort(form);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 form = t_concat(form, "<");
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 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
48 t_insert(extensions, form);
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 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 t_sort(identities);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 t_sort(features);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 t_sort(extensions);
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 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
55 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
56 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
57 local S = identities..features..extensions;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 local ver = base64(sha1(S));
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 return ver, S;
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60 end
20e99763a08a util.caps: Entity capabilities hash generation (moved from mod_pep)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
62 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
63 calculate_hash = calculate_hash;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
64 };