Sun, 24 Aug 2008 04:34:01 +0000
Working presence!
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1 | |
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2 | require "util.stanza" |
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3 | |
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4 | local st = stanza; |
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5 | local tostring = tostring; |
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6 | local format = string.format; |
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7 | local m_random = math.random; |
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8 | local t_insert = table.insert; |
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9 | local t_remove = table.remove; |
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10 | local t_concat = table.concat; |
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11 | local t_concatall = function (t, sep) local tt = {}; for _, s in ipairs(t) do t_insert(tt, tostring(s)); end return t_concat(tt, sep); end |
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12 | |
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13 | local error = error; |
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14 | |
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15 | module "xmlhandlers" |
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16 | |
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17 | function init_xmlhandlers(session) |
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18 | local ns_stack = { "" }; |
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19 | local curr_ns = ""; |
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20 | local curr_tag; |
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21 | local chardata = {}; |
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22 | local xml_handlers = {}; |
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23 | local log = session.log; |
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24 | local print = function (...) log("info", "xmlhandlers", t_concatall({...}, "\t")); end |
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25 | |
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26 | local send = session.send; |
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27 | |
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28 | local stanza |
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29 | function xml_handlers:StartElement(name, attr) |
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30 | if stanza and #chardata > 0 then |
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31 | stanza:text(t_concat(chardata)); |
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32 | print("Char data:", t_concat(chardata)); |
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33 | chardata = {}; |
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34 | end |
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35 | curr_ns,name = name:match("^(.+):(%w+)$"); |
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36 | print("Tag received:", name, tostring(curr_ns)); |
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37 | if not stanza then |
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38 | if session.notopen then |
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39 | if name == "stream" then |
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40 | session.host = attr.to or error("Client failed to specify destination hostname"); |
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41 | session.version = attr.version or 0; |
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42 | session.streamid = m_random(1000000, 99999999); |
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43 | print(session, session.host, "Client opened stream"); |
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44 | send("<?xml version='1.0'?>"); |
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45 | send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' >", session.streamid, session.host)); |
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46 | --send("<stream:features>"); |
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47 | --send("<mechanism>PLAIN</mechanism>"); |
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48 | --send [[<register xmlns="http://jabber.org/features/iq-register"/> ]] |
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49 | --send("</stream:features>"); |
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50 | log("info", "core", "Stream opened successfully"); |
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51 | session.notopen = nil; |
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52 | return; |
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53 | end |
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54 | error("Client failed to open stream successfully"); |
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55 | end |
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56 | if name ~= "iq" and name ~= "presence" and name ~= "message" then |
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57 | error("Client sent invalid top-level stanza"); |
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58 | end |
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59 | stanza = st.stanza(name, { to = attr.to, type = attr.type, id = attr.id, xmlns = curr_ns }); |
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60 | curr_tag = stanza; |
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61 | else |
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62 | attr.xmlns = curr_ns; |
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63 | stanza:tag(name, attr); |
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64 | end |
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65 | end |
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66 | function xml_handlers:CharacterData(data) |
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67 | if stanza then |
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68 | t_insert(chardata, data); |
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69 | end |
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70 | end |
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71 | function xml_handlers:EndElement(name) |
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72 | curr_ns,name = name:match("^(.+):(%w+)$"); |
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73 | --print("<"..name.."/>", tostring(stanza), tostring(#stanza.last_add < 1), tostring(stanza.last_add[#stanza.last_add].name)); |
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74 | if (not stanza) or #stanza.last_add < 0 or (#stanza.last_add > 0 and name ~= stanza.last_add[#stanza.last_add].name) then error("XML parse error in client stream"); end |
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75 | if stanza and #chardata > 0 then |
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76 | stanza:text(t_concat(chardata)); |
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77 | print("Char data:", t_concat(chardata)); |
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78 | chardata = {}; |
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79 | end |
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80 | -- Complete stanza |
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81 | print(name, tostring(#stanza.last_add)); |
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82 | if #stanza.last_add == 0 then |
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83 | session.stanza_dispatch(stanza); |
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84 | stanza = nil; |
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85 | else |
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86 | stanza:up(); |
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87 | end |
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88 | end |
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89 | return xml_handlers; |
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90 | end |
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91 | |
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92 | return init_xmlhandlers; |