-- 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.
--
local default_stanza_size_limit = 1024*1024*10; -- 10MB
-module "xmppstream"
+local _ENV = nil;
local new_parser = lxp.new;
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;
attr.xmlns = curr_ns;
non_streamns_depth = non_streamns_depth + 1;
end
-
+
for i=1,#attr do
local k = attr[i];
attr[i] = nil;
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();
end
else
-- Garbage before stream?
- cb_error(session, "no-stream");
+ cb_error(session, "no-stream", tagname);
end
return;
end
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
function xml_handlers:CharacterData(data)
if stanza then
if lxp_supports_bytecount then
- stanza_size = stanza_size + #data --self:getcurrentbytecount();
+ stanza_size = stanza_size + self:getcurrentbytecount();
end
t_insert(chardata, data);
elseif lxp_supports_bytecount then
- cb_handleprogress(#data--[[self:getcurrentbytecount()]]);
+ cb_handleprogress(self:getcurrentbytecount());
end
end
function xml_handlers:EndElement(tagname)
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;
end
local handlers, meta = new_sax_handlers(session, stream_callbacks, handle_progress);
- local parser = new_parser(handlers, ns_separator);
+ 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);
+ parser = new_parser(handlers, ns_separator, false);
parse = parser.parse;
n_outstanding_bytes = 0;
meta.reset();
};
end
-return _M;
+return {
+ ns_separator = ns_separator;
+ ns_pattern = ns_pattern;
+ new_sax_handlers = new_sax_handlers;
+ new = new;
+};