author | Matthew Wild <mwild1@gmail.com> |
Sun, 24 Aug 2008 22:48:27 +0100 | |
changeset 7 | dcc5ac721c20 |
parent 1 | b8787e859fd2 |
child 20 | 6885fd2cf51f |
permissions | -rw-r--r-- |
1
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require "util.stanza" |
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local st = stanza; |
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local tostring = tostring; |
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local format = string.format; |
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local m_random = math.random; |
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local t_insert = table.insert; |
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local t_remove = table.remove; |
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local t_concat = table.concat; |
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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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local error = error; |
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module "xmlhandlers" |
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function init_xmlhandlers(session) |
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local ns_stack = { "" }; |
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local curr_ns = ""; |
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local curr_tag; |
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local chardata = {}; |
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local xml_handlers = {}; |
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local log = session.log; |
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local print = function (...) log("info", "xmlhandlers", t_concatall({...}, "\t")); end |
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local send = session.send; |
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local stanza |
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function xml_handlers:StartElement(name, attr) |
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if stanza and #chardata > 0 then |
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stanza:text(t_concat(chardata)); |
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print("Char data:", t_concat(chardata)); |
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chardata = {}; |
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end |
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curr_ns,name = name:match("^(.+):(%w+)$"); |
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print("Tag received:", name, tostring(curr_ns)); |
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if not stanza then |
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if session.notopen then |
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if name == "stream" then |
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session.host = attr.to or error("Client failed to specify destination hostname"); |
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session.version = attr.version or 0; |
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session.streamid = m_random(1000000, 99999999); |
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print(session, session.host, "Client opened stream"); |
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send("<?xml version='1.0'?>"); |
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send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0'>", session.streamid, session.host)); |
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--send("<stream:features>"); |
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--send("<mechanism>PLAIN</mechanism>"); |
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--send [[<register xmlns="http://jabber.org/features/iq-register"/> ]] |
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--send("</stream:features>"); |
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log("info", "core", "Stream opened successfully"); |
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session.notopen = nil; |
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return; |
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end |
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error("Client failed to open stream successfully"); |
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end |
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if name ~= "iq" and name ~= "presence" and name ~= "message" then |
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error("Client sent invalid top-level stanza"); |
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end |
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stanza = st.stanza(name, { to = attr.to, type = attr.type, id = attr.id, xmlns = curr_ns }); |
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curr_tag = stanza; |
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else |
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attr.xmlns = curr_ns; |
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stanza:tag(name, attr); |
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end |
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end |
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function xml_handlers:CharacterData(data) |
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if stanza then |
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t_insert(chardata, data); |
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end |
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end |
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function xml_handlers:EndElement(name) |
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curr_ns,name = name:match("^(.+):(%w+)$"); |
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--print("<"..name.."/>", tostring(stanza), tostring(#stanza.last_add < 1), tostring(stanza.last_add[#stanza.last_add].name)); |
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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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if stanza and #chardata > 0 then |
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stanza:text(t_concat(chardata)); |
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print("Char data:", t_concat(chardata)); |
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chardata = {}; |
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end |
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-- Complete stanza |
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print(name, tostring(#stanza.last_add)); |
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if #stanza.last_add == 0 then |
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session.stanza_dispatch(stanza); |
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stanza = nil; |
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else |
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stanza:up(); |
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end |
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end |
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return xml_handlers; |
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end |
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|
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return init_xmlhandlers; |