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mod_mam/rsm.lib.lua @ 816:960007b0901e
mod_auth_external, mod_auth_internal_yubikey: Get rid of useless wrapper function around the auth provider.
author | Waqas Hussain <waqas20@gmail.com> |
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date | Thu, 13 Sep 2012 00:17:42 +0500 |
parent | 704:57206f8f7b09 |
child | 1101:479df3e0b012 |
rev | line source |
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701
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1 local stanza = require"util.stanza".stanza; |
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2 local tostring, tonumber = tostring, tonumber; |
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3 local type = type; |
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4 local pairs = pairs; |
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5 |
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6 local xmlns_rsm = 'http://jabber.org/protocol/rsm'; |
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7 |
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8 local element_parsers; |
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9 |
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10 do |
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11 local function xs_int(st) |
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12 return tonumber((st:get_text())); |
701
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13 end |
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14 local function xs_string(st) |
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15 return st:get_text(); |
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16 end |
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17 |
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18 element_parsers = { |
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19 after = xs_string; |
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20 before = function(st) |
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21 return st:get_text() or true; |
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22 end; |
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23 max = xs_int; |
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24 index = xs_int; |
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25 |
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26 first = function(st) |
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27 return { index = tonumber(st.attr.index); st:get_text() }; |
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28 end; |
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29 last = xs_string; |
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30 count = xs_int; |
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31 } |
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32 end |
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33 |
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34 local element_generators = setmetatable({ |
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35 first = function(st, data) |
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36 if type(data) == "table" then |
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37 st:tag("first", { index = data.index }):text(data[1]):up(); |
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38 else |
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39 st:tag("first"):text(tostring(data)):up(); |
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40 end |
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41 end; |
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42 }, { |
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43 __index = function(_, name) |
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44 return function(st, data) |
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45 st:tag(name):text(tostring(data)):up(); |
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46 end |
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47 end; |
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48 }); |
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49 |
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50 |
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51 local function parse(stanza) |
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52 local rs = {}; |
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53 for tag in stanza:childtags() do |
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54 local name = tag.name; |
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55 local parser = name and element_parsers[name]; |
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56 if parser then |
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57 rs[name] = parser(tag); |
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58 end |
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59 end |
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60 return rs; |
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61 end |
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62 |
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63 local function generate(t) |
703 | 64 local st = stanza("set", { xmlns = xmlns_rsm }); |
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65 for k,v in pairs(t) do |
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66 if element_parsers[k] then |
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67 element_generators[k](st, v); |
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68 end |
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69 end |
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70 return st; |
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71 end |
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72 |
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73 local function get(st) |
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74 local set = st:get_child("set", xmlns_rsm); |
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75 if set and #set.tags > 0 then |
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76 return parse(set); |
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77 end |
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78 end |
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79 |
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80 return { parse = parse, generate = generate, get = get }; |