+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
require "util.stanza"
local st = stanza;
local tostring = tostring;
-local format = string.format;
-local m_random = math.random;
local t_insert = table.insert;
-local t_remove = table.remove;
local t_concat = table.concat;
-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
-local sm_destroy_session = import("core.sessionmanager", "destroy_session");
+
+local default_log = require "util.logger".init("xmlhandlers");
local error = error;
module "xmlhandlers"
-function init_xmlhandlers(session, streamopened)
- local ns_stack = { "" };
- local curr_ns = "";
- local curr_tag;
- local chardata = {};
- local xml_handlers = {};
- local log = session.log;
- local print = function (...) log("info", "xmlhandlers", t_concatall({...}, "\t")); end
-
- local send = session.send;
+local ns_prefixes = {
+ ["http://www.w3.org/XML/1998/namespace"] = "xml";
+};
+
+local xmlns_streams = "http://etherx.jabber.org/streams";
+
+local ns_separator = "\1";
+local ns_pattern = "^([^"..ns_separator.."]*)"..ns_separator.."?(.*)$";
+
+function init_xmlhandlers(session, stream_callbacks)
+ local chardata = {};
+ local xml_handlers = {};
+ local log = session.log or default_log;
+
+ local cb_streamopened = stream_callbacks.streamopened;
+ local cb_streamclosed = stream_callbacks.streamclosed;
+ local cb_error = stream_callbacks.error or function(session, e) error("XML stream error: "..tostring(e)); end;
+ local cb_handlestanza = stream_callbacks.handlestanza;
+
+ local stream_ns = stream_callbacks.stream_ns or xmlns_streams;
+ local stream_tag = stream_ns..ns_separator..(stream_callbacks.stream_tag or "stream");
+ local stream_error_tag = stream_ns..ns_separator..(stream_callbacks.error_tag or "error");
+
+ local stream_default_ns = stream_callbacks.default_ns;
+
+ local stanza;
+ function xml_handlers:StartElement(tagname, attr)
+ if stanza and #chardata > 0 then
+ -- We have some character data in the buffer
+ stanza:text(t_concat(chardata));
+ chardata = {};
+ end
+ local curr_ns,name = tagname:match(ns_pattern);
+ if name == "" then
+ curr_ns, name = "", curr_ns;
+ end
+
+ if curr_ns ~= stream_default_ns then
+ attr.xmlns = curr_ns;
+ end
- local stanza
- function xml_handlers:StartElement(name, attr)
- if stanza and #chardata > 0 then
- -- We have some character data in the buffer
- stanza:text(t_concat(chardata));
- chardata = {};
+ -- FIXME !!!!!
+ for i=1,#attr do
+ local k = attr[i];
+ attr[i] = nil;
+ local ns, nm = k:match(ns_pattern);
+ if nm ~= "" then
+ ns = ns_prefixes[ns];
+ if ns then
+ attr[ns..":"..nm] = attr[k];
+ attr[k] = nil;
+ end
end
- curr_ns,name = name:match("^(.+):(%w+)$");
- if not stanza then
- if session.notopen then
- if name == "stream" then
- streamopened(session, attr);
- return;
+ end
+
+ if not stanza then --if we are not currently inside a stanza
+ if session.notopen then
+ if tagname == stream_tag then
+ if cb_streamopened then
+ cb_streamopened(session, attr);
end
- error("Client failed to open stream successfully");
- end
- if curr_ns == "jabber:client" and name ~= "iq" and name ~= "presence" and name ~= "message" then
- error("Client sent invalid top-level stanza");
+ else
+ -- Garbage before stream?
+ cb_error(session, "no-stream");
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 = st.stanza(name, attr);
+ else -- we are inside a stanza, so add a tag
+ attr.xmlns = nil;
+ if curr_ns ~= stream_default_ns then
attr.xmlns = curr_ns;
- stanza = st.stanza(name, attr); --{ to = attr.to, type = attr.type, id = attr.id, xmlns = curr_ns });
- curr_tag = stanza;
- else
- attr.xmlns = curr_ns;
- stanza:tag(name, attr);
end
+ stanza:tag(name, attr);
end
- function xml_handlers:CharacterData(data)
- if stanza then
- t_insert(chardata, data);
- end
+ end
+ function xml_handlers:CharacterData(data)
+ if stanza then
+ t_insert(chardata, data);
end
- function xml_handlers:EndElement(name)
- curr_ns,name = name:match("^(.+):(%w+)$");
- if (not stanza) or #stanza.last_add < 0 or (#stanza.last_add > 0 and name ~= stanza.last_add[#stanza.last_add].name) then
- if name == "stream" then
- log("debug", "Stream closed");
- sm_destroy_session(session);
- return;
- else
- error("XML parse error in client stream");
- end
- end
- if stanza and #chardata > 0 then
+ end
+ function xml_handlers:EndElement(tagname)
+ if stanza then
+ if #chardata > 0 then
-- We have some character data in the buffer
stanza:text(t_concat(chardata));
chardata = {};
end
-- Complete stanza
if #stanza.last_add == 0 then
- session.stanza_dispatch(stanza);
+ if tagname ~= stream_error_tag then
+ cb_handlestanza(session, stanza);
+ else
+ cb_error(session, "stream-error", stanza);
+ end
stanza = nil;
else
stanza:up();
end
+ else
+ if tagname == stream_tag then
+ if cb_streamclosed then
+ cb_streamclosed(session);
+ end
+ else
+ local curr_ns,name = tagname:match(ns_pattern);
+ if name == "" then
+ curr_ns, name = "", curr_ns;
+ end
+ cb_error(session, "parse-error", "unexpected-element-close", name);
+ end
+ stanza, chardata = nil, {};
end
+ end
return xml_handlers;
end
projects / prosody.git / blobdiff