prosody
72e4639c9310
util/jid.lua

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util/jid.lua @ 954:72e4639c9310

util.dataforms: Fixes for hidden field type
author Matthew Wild <mwild1@gmail.com>
date Sat, 04 Apr 2009 18:07:48 +0100
parent 896:2c0b9e3c11c3
child 1171:be11dc0610d5
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1 -- Prosody IM v0.4
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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11 local match = string.match;
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12 local nodeprep = require "util.encodings".stringprep.nodeprep;
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13 local nameprep = require "util.encodings".stringprep.nameprep;
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14 local resourceprep = require "util.encodings".stringprep.resourceprep;
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16 module "jid"
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17
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18 function split(jid)
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19 if not jid then return; end
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20 local node, nodepos = match(jid, "^([^@]+)@()");
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21 local host, hostpos = match(jid, "^([^@/]+)()", nodepos)
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22 if node and not host then return nil, nil, nil; end
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23 local resource = match(jid, "^/(.+)$", hostpos);
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24 if (not host) or ((not resource) and #jid >= hostpos) then return nil, nil, nil; end
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25 return node, host, resource;
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26 end
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27
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28 function bare(jid)
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29 local node, host = split(jid);
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30 if node and host then
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31 return node.."@"..host;
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32 end
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33 return host;
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34 end
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35
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36 function prepped_split(jid)
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37 local node, host, resource = split(jid);
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38 if host then
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39 host = nameprep(host);
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40 if not host then return; end
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41 if node then
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42 node = nodeprep(node);
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43 if not node then return; end
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44 end
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45 if resource then
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46 resource = resourceprep(resource);
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47 if not resource then return; end
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48 end
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49 return node, host, resource;
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50 end
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51 end
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52
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53 function prep(jid)
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54 local node, host, resource = prepped_split(jid);
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55 if host then
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56 if node then
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57 host = node .. "@" .. host;
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58 end
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59 if resource then
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60 host = host .. "/" .. resource;
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61 end
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62 end
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63 return host;
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64 end
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65
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66 return _M;