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util/jid.lua @ 717:ab428c579cbc
util/jid: string prepping functions added: prepped_split and prep
author | Waqas Hussain <waqas20@gmail.com> |
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date | Thu, 15 Jan 2009 04:34:55 +0500 |
parent | 615:4ae3e81513f3 |
child | 758:b1885732e979 |
rev | line source |
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615 | 1 -- Prosody IM v0.2 |
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2 -- Copyright (C) 2008 Matthew Wild |
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3 -- Copyright (C) 2008 Waqas Hussain |
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4 -- |
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5 -- This program is free software; you can redistribute it and/or |
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6 -- modify it under the terms of the GNU General Public License |
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7 -- as published by the Free Software Foundation; either version 2 |
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8 -- of the License, or (at your option) any later version. |
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9 -- |
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10 -- This program is distributed in the hope that it will be useful, |
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 -- GNU General Public License for more details. |
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14 -- |
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15 -- You should have received a copy of the GNU General Public License |
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16 -- along with this program; if not, write to the Free Software |
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 -- |
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19 |
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20 |
0 | 21 |
22 local match = string.match; | |
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23 local nodeprep = require "util.encodings".stringprep.nodeprep; |
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24 local nameprep = require "util.encodings".stringprep.nameprep; |
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25 local resourceprep = require "util.encodings".stringprep.resourceprep; |
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26 |
0 | 27 module "jid" |
28 | |
29 function split(jid) | |
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30 if not jid then return; end |
369 | 31 local node, nodepos = match(jid, "^([^@]+)@()"); |
32 local host, hostpos = match(jid, "^([^@/]+)()", nodepos) | |
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33 if node and not host then return nil, nil, nil; end |
369 | 34 local resource = match(jid, "^/(.+)$", hostpos); |
35 if (not host) or ((not resource) and #jid >= hostpos) then return nil, nil, nil; end | |
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36 return node, host, resource; |
0 | 37 end |
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38 |
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39 function bare(jid) |
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40 local node, host = split(jid); |
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41 if node and host then |
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42 return node.."@"..host; |
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43 end |
384 | 44 return host; |
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45 end |
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46 |
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47 function prepped_split(jid) |
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48 local node, host, resource = split(jid); |
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49 if host then |
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50 host = nameprep(host); |
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51 if not host then return; end |
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52 if node then |
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53 node = nodeprep(node); |
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54 if not node then return; end |
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55 end |
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56 if resource then |
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57 resource = resourceprep(resource); |
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58 if not resource then return; end |
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59 end |
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60 return node, host, resource; |
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61 end |
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62 end |
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63 |
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64 function prep(jid) |
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65 local node, host, resource = prepped_split(jid); |
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66 if host then |
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67 if node then |
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68 host = node .. "@" .. host; |
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69 end |
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70 if resource then |
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71 host = host .. "/" .. resource; |
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72 end |
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73 end |
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74 return host; |
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75 end |
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76 |
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77 return _M; |