mirror of
https://github.com/bjc/prosody.git
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68 lines
1.6 KiB
Lua
68 lines
1.6 KiB
Lua
-- Prosody IM
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-- Copyright (C) 2008-2009 Matthew Wild
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-- Copyright (C) 2008-2009 Waqas Hussain
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--
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-- This project is MIT/X11 licensed. Please see the
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-- COPYING file in the source package for more information.
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--
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local match = string.match;
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local nodeprep = require "util.encodings".stringprep.nodeprep;
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local nameprep = require "util.encodings".stringprep.nameprep;
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local resourceprep = require "util.encodings".stringprep.resourceprep;
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module "jid"
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local function _split(jid)
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if not jid then return; end
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local node, nodepos = match(jid, "^([^@]+)@()");
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local host, hostpos = match(jid, "^([^@/]+)()", nodepos)
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if node and not host then return nil, nil, nil; end
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local resource = match(jid, "^/(.+)$", hostpos);
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if (not host) or ((not resource) and #jid >= hostpos) then return nil, nil, nil; end
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return node, host, resource;
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end
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split = _split;
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function bare(jid)
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local node, host = _split(jid);
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if node and host then
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return node.."@"..host;
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end
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return host;
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end
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local function _prepped_split(jid)
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local node, host, resource = _split(jid);
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if host then
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host = nameprep(host);
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if not host then return; end
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if node then
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node = nodeprep(node);
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if not node then return; end
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end
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if resource then
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resource = resourceprep(resource);
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if not resource then return; end
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end
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return node, host, resource;
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end
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end
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prepped_split = _prepped_split;
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function prep(jid)
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local node, host, resource = _prepped_split(jid);
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if host then
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if node then
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host = node .. "@" .. host;
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end
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if resource then
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host = host .. "/" .. resource;
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end
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end
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return host;
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end
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return _M;
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