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-- Prosody IM v0.2
-- Copyright (C) 2008 Matthew Wild
-- Copyright (C) 2008 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local match = string.match;
local nodeprep = require "util.encodings".stringprep.nodeprep;
local nameprep = require "util.encodings".stringprep.nameprep;
local resourceprep = require "util.encodings".stringprep.resourceprep;
module "jid"
function split(jid)
if not jid then return; end
local node, nodepos = match(jid, "^([^@]+)@()");
local host, hostpos = match(jid, "^([^@/]+)()", nodepos)
if node and not host then return nil, nil, nil; end
local resource = match(jid, "^/(.+)$", hostpos);
if (not host) or ((not resource) and #jid >= hostpos) then return nil, nil, nil; end
return node, host, resource;
end
function bare(jid)
local node, host = split(jid);
if node and host then
return node.."@"..host;
end
return host;
end
function prepped_split(jid)
local node, host, resource = split(jid);
if host then
host = nameprep(host);
if not host then return; end
if node then
node = nodeprep(node);
if not node then return; end
end
if resource then
resource = resourceprep(resource);
if not resource then return; end
end
return node, host, resource;
end
end
function prep(jid)
local node, host, resource = prepped_split(jid);
if host then
if node then
host = node .. "@" .. host;
end
if resource then
host = host .. "/" .. resource;
end
end
return host;
end
return _M;
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