| 1 | -- Prosody IM |
| 2 | -- Copyright (C) 2008-2010 Matthew Wild |
| 3 | -- Copyright (C) 2008-2010 Waqas Hussain |
| 4 | -- |
| 5 | -- This project is MIT/X11 licensed. Please see the |
| 6 | -- COPYING file in the source package for more information. |
| 7 | -- |
| 8 | |
| 9 | local tblinsert = table.insert |
| 10 | |
| 11 | local lex = require "util.xmllex"; |
| 12 | local index = lex.index |
| 13 | local tagindex_to_tree = lex.tagindex_to_tree; |
| 14 | local get_name, get_attr = lex.get_name, lex.get_attr; |
| 15 | |
| 16 | local default_log = require "util.logger".init("xmppstream"); |
| 17 | |
| 18 | local xmlns_streams = "http://etherx.jabber.org/streams"; |
| 19 | |
| 20 | local function new(session, stream_callbacks) |
| 21 | local partial |
| 22 | local openindexes = { } |
| 23 | local lastindex = 0 |
| 24 | |
| 25 | return { |
| 26 | reset = function ( ) |
| 27 | partial = nil |
| 28 | openindexes = { } |
| 29 | lastindex = 0 |
| 30 | end ; |
| 31 | feed = function ( stream , data ) |
| 32 | --print("FFEED", data) |
| 33 | partial = index ( data , partial ) |
| 34 | local tmp = lastindex |
| 35 | lastindex = #partial - 1 |
| 36 | for i = tmp + 1 , #partial - 1 do |
| 37 | local v = partial [ i ] |
| 38 | |
| 39 | if v.finish then |
| 40 | if v.type == "open" or v.type == "selfclosing" then |
| 41 | tblinsert ( openindexes , i ) |
| 42 | if #openindexes == 1 then |
| 43 | local vstr = tostring(v); |
| 44 | local name = get_name ( vstr ) |
| 45 | if name == "stream:stream" then |
| 46 | local attr = get_attr ( vstr ); |
| 47 | stream_callbacks.streamopened ( session , attr ) |
| 48 | end |
| 49 | end |
| 50 | end |
| 51 | if v.type == "close" or v.type == "selfclosing" then |
| 52 | if #openindexes == 2 then -- If closing level 2... |
| 53 | local attr = get_attr ( tostring(partial[openindexes[1]]) ) |
| 54 | local stanza = tagindex_to_tree ( partial , openindexes [ #openindexes ] , i , { |
| 55 | attr = attr, |
| 56 | } ) |
| 57 | if stanza[1].attr.xmlns == attr.xmlns then |
| 58 | stanza[1].attr.xmlns = false; |
| 59 | end |
| 60 | stream_callbacks.handlestanza ( session , stanza[1] ) |
| 61 | elseif #openindexes == 1 then |
| 62 | local prefix, name = get_name ( tostring(v) ) |
| 63 | if name == "stream" then |
| 64 | stream_callbacks.streamclosed ( session ) |
| 65 | end |
| 66 | end |
| 67 | openindexes [ #openindexes ] = nil |
| 68 | end |
| 69 | end |
| 70 | end |
| 71 | return true |
| 72 | end ; |
| 73 | set_session = function ( newsession ) session = newsession end |
| 74 | }; |
| 75 | end |
| 76 | |
| 77 | return { |
| 78 | new = new ; |
| 79 | } |