Fri, 18 Mar 2011 21:39:57 +0000
verse.client: Reopen stream in response to 'connected' event
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1 | local xmlns_roster = "jabber:iq:roster"; |
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2 | local bare_jid = require "util.jid".bare; |
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3 | local t_insert = table.insert; |
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4 | |
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5 | function verse.plugins.roster(stream) |
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6 | local roster = { |
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7 | items = {}; |
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8 | -- TODO: |
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9 | -- groups = {}; |
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10 | -- ver = nil; |
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11 | }; |
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12 | stream.roster = roster; |
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13 | |
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14 | local function item_lua2xml(item_table) |
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15 | local xml_item = verse.stanza("item", { xmlns = xmlns_roster }); |
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16 | for k, v in pairs(item_table) do |
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17 | if k ~= "groups" then |
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18 | xml_item.attr[k] = v; |
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19 | else |
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20 | for i = 1,#v do |
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21 | xml_item:tag("group"):text(v[i]):up(); |
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22 | end |
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23 | end |
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24 | end |
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25 | return xml_item; |
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26 | end |
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27 | |
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28 | local function item_xml2lua(xml_item) |
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29 | local item_table = { }; |
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30 | local groups = {}; |
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31 | item_table.groups = groups; |
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32 | local jid = xml_item.attr.jid; |
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33 | |
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34 | for k, v in pairs(xml_item.attr) do |
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35 | if k ~= "xmlns" then |
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36 | item_table[k] = v |
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37 | end |
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38 | end |
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39 | |
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40 | for group in xml_item:childtags("group") do |
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41 | t_insert(groups, group:get_text()) |
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42 | end |
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43 | return item_table; |
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44 | end |
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45 | |
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46 | -- should this be add_contact(item, callback) instead? |
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47 | function roster:add_contact(jid, nick, groups, callback) |
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48 | local item = { jid = jid, name = nick, groups = groups }; |
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49 | local stanza = verse.iq({ type = "set" }) |
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50 | :tag("query", { xmlns = xmlns_roster }) |
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51 | :add_child(item_lua2xml(item)); |
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52 | stream:send_iq(stanza, function (reply) |
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53 | if not callback then return end |
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54 | if reply.attr.type == "result" then |
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55 | callback(true); |
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56 | else |
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57 | type, condition, text = reply:get_error(); |
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58 | callback(nil, { type, condition, text }); |
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59 | end |
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60 | end); |
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61 | end |
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62 | -- What about subscriptions? |
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63 | |
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64 | function roster:delete_contact(jid, callback) |
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65 | jid = (type(jid) == "table" and jid.jid) or jid; |
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66 | local item = { jid = jid, subscription = "remove" } |
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67 | if not roster.items[jid] then return false, "item-not-found"; end |
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68 | stream:send_iq(verse.iq({ type = "set" }) |
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69 | :tag("query", { xmlns = xmlns_roster }) |
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70 | :add_child(item_lua2xml(item)), |
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71 | function (reply) |
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72 | if not callback then return end |
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73 | if result.attr.type == "result" then |
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74 | callback(true); |
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75 | else |
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76 | type, condition, text = reply:get_error(); |
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77 | callback(nil, { type, condition, text }); |
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78 | end |
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79 | end); |
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80 | end |
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81 | |
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82 | local function add_item(item) -- Takes one roster <item/> |
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83 | local roster_item = item_xml2lua(item); |
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84 | roster.items[roster_item.jid] = roster_item; |
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85 | end |
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86 | |
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87 | -- Private low level |
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88 | local function delete_item(jid) |
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89 | local deleted_item = roster.items[jid]; |
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90 | roster.items[jid] = nil; |
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91 | return deleted_item; |
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92 | end |
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93 | |
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94 | function roster:fetch(callback) |
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95 | stream:send_iq(verse.iq({type="get"}):tag("query", { xmlns = xmlns_roster }), |
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96 | function (result) |
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97 | if result.attr.type == "result" then |
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98 | local query = result:get_child("query", xmlns_roster); |
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99 | for item in query:childtags("item") do |
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100 | add_item(item) |
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101 | end |
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102 | callback(roster); |
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103 | else |
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104 | type, condition, text = stanza:get_error(); |
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105 | callback(nil, { type, condition, text }); --FIXME |
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106 | end |
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107 | end); |
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108 | end |
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109 | |
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110 | stream:hook("iq/"..xmlns_roster, function(stanza) |
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111 | local type, from = stanza.attr.type, stanza.attr.from; |
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112 | if type == "set" and (not from or from == bare_jid(stream.jid)) then |
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113 | local query = stanza:get_child("query", xmlns_roster); |
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114 | local item = query and query:get_child("item"); |
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115 | if item then |
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116 | local event, target; |
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117 | local jid = item.attr.jid; |
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118 | if item.attr.subscription == "remove" then |
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119 | event = "removed" |
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120 | target = delete_item(jid); |
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121 | else |
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122 | event = roster.items[jid] and "changed" or "added"; |
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123 | add_item(item) |
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124 | target = roster.items[jid]; |
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125 | end |
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126 | stream:event("roster/item-"..event, target); |
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127 | -- TODO else return error? Events? |
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128 | end |
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129 | stream:send(verse.reply(stanza)) |
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130 | return true; |
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131 | end |
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132 | end); |
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133 | end |