Annotate

util/jid.lua @ 2435:1ab73691b58e

net.server: When libevent backend is in use, override signal.signal to use server.hook_signal
author Matthew Wild <mwild1@gmail.com>
date Sun, 10 Jan 2010 15:26:36 +0000
parent 2245:df9e18f5c808
child 2923:b7049746bd29
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1 -- Prosody IM
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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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9
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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 local 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 split = _split;
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29 function bare(jid)
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30 local node, host = _split(jid);
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31 if node and host then
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32 return node.."@"..host;
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33 end
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34 return host;
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35 end
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36
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37 local function _prepped_split(jid)
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38 local node, host, resource = _split(jid);
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39 if host then
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40 host = nameprep(host);
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41 if not host then return; end
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42 if node then
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43 node = nodeprep(node);
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44 if not node then return; end
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45 end
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46 if resource then
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47 resource = resourceprep(resource);
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48 if not resource then return; end
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49 end
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50 return node, host, resource;
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51 end
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52 end
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53 prepped_split = _prepped_split;
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55 function prep(jid)
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56 local node, host, resource = _prepped_split(jid);
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57 if host then
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58 if node then
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59 host = node .. "@" .. host;
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60 end
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61 if resource then
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62 host = host .. "/" .. resource;
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63 end
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64 end
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65 return host;
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66 end
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67
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68 function join(node, host, resource)
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69 if node and host and resource then
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70 return node.."@"..host.."/"..resource;
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71 elseif node and host then
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72 return node.."@"..host;
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73 elseif host and resource then
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74 return host.."/"..resource;
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75 elseif host then
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76 return host;
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77 end
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78 return nil; -- Invalid JID
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79 end
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80
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81 return _M;