diff options
Diffstat (limited to 'util/xmppstream.lua')
| -rw-r--r-- | util/xmppstream.lua | 59 |
1 files changed, 40 insertions, 19 deletions
diff --git a/util/xmppstream.lua b/util/xmppstream.lua index 138c86b7..7be63285 100644 --- a/util/xmppstream.lua +++ b/util/xmppstream.lua @@ -1,7 +1,7 @@ -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain --- +-- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- @@ -24,7 +24,7 @@ local lxp_supports_bytecount = not not lxp.new({}).getcurrentbytecount; local default_stanza_size_limit = 1024*1024*10; -- 10MB -module "xmppstream" +local _ENV = nil; local new_parser = lxp.new; @@ -40,29 +40,26 @@ local xmlns_streams = "http://etherx.jabber.org/streams"; local ns_separator = "\1"; local ns_pattern = "^([^"..ns_separator.."]*)"..ns_separator.."?(.*)$"; -_M.ns_separator = ns_separator; -_M.ns_pattern = ns_pattern; - local function dummy_cb() end -function new_sax_handlers(session, stream_callbacks, cb_handleprogress) +local function new_sax_handlers(session, stream_callbacks, cb_handleprogress) local xml_handlers = {}; - + local cb_streamopened = stream_callbacks.streamopened; local cb_streamclosed = stream_callbacks.streamclosed; local cb_error = stream_callbacks.error or function(session, e, stanza) error("XML stream error: "..tostring(e)..(stanza and ": "..tostring(stanza) or ""),2); end; local cb_handlestanza = stream_callbacks.handlestanza; cb_handleprogress = cb_handleprogress or dummy_cb; - + local stream_ns = stream_callbacks.stream_ns or xmlns_streams; local stream_tag = stream_callbacks.stream_tag or "stream"; if stream_ns ~= "" then stream_tag = stream_ns..ns_separator..stream_tag; end local stream_error_tag = stream_ns..ns_separator..(stream_callbacks.error_tag or "error"); - + local stream_default_ns = stream_callbacks.default_ns; - + local stack = {}; local chardata, stanza = {}; local stanza_size = 0; @@ -82,7 +79,7 @@ function new_sax_handlers(session, stream_callbacks, cb_handleprogress) attr.xmlns = curr_ns; non_streamns_depth = non_streamns_depth + 1; end - + for i=1,#attr do local k = attr[i]; attr[i] = nil; @@ -92,7 +89,7 @@ function new_sax_handlers(session, stream_callbacks, cb_handleprogress) attr[k] = nil; end end - + if not stanza then --if we are not currently inside a stanza if lxp_supports_bytecount then stanza_size = self:getcurrentbytecount(); @@ -116,7 +113,7 @@ function new_sax_handlers(session, stream_callbacks, cb_handleprogress) if curr_ns == "jabber:client" and name ~= "iq" and name ~= "presence" and name ~= "message" then cb_error(session, "invalid-top-level-element"); end - + stanza = setmetatable({ name = name, attr = attr, tags = {} }, stanza_mt); else -- we are inside a stanza, so add a tag if lxp_supports_bytecount then @@ -205,26 +202,26 @@ function new_sax_handlers(session, stream_callbacks, cb_handleprogress) error("Failed to abort parsing"); end end - + if lxp_supports_doctype then xml_handlers.StartDoctypeDecl = restricted_handler; end xml_handlers.Comment = restricted_handler; xml_handlers.ProcessingInstruction = restricted_handler; - + local function reset() stanza, chardata, stanza_size = nil, {}, 0; stack = {}; end - + local function set_session(stream, new_session) session = new_session; end - + return xml_handlers, { reset = reset, set_session = set_session }; end -function new(session, stream_callbacks, stanza_size_limit) +local function new(session, stream_callbacks, stanza_size_limit) -- Used to track parser progress (e.g. to enforce size limits) local n_outstanding_bytes = 0; local handle_progress; @@ -241,6 +238,25 @@ function new(session, stream_callbacks, stanza_size_limit) local parser = new_parser(handlers, ns_separator, false); local parse = parser.parse; + function session.open_stream(session, from, to) + local send = session.sends2s or session.send; + + local attr = { + ["xmlns:stream"] = "http://etherx.jabber.org/streams", + ["xml:lang"] = "en", + xmlns = stream_callbacks.default_ns, + version = session.version and (session.version > 0 and "1.0" or nil), + id = session.streamid, + from = from or session.host, to = to, + }; + if session.stream_attrs then + session:stream_attrs(from, to, attr) + end + send("<?xml version='1.0'?>"); + send(st.stanza("stream:stream", attr):top_tag()); + return true; + end + return { reset = function () parser = new_parser(handlers, ns_separator, false); @@ -262,4 +278,9 @@ function new(session, stream_callbacks, stanza_size_limit) }; end -return _M; +return { + ns_separator = ns_separator; + ns_pattern = ns_pattern; + new_sax_handlers = new_sax_handlers; + new = new; +}; |