--- Prosody IM v0.1
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
--
--- This program is free software; you can redistribute it and/or
--- modify it under the terms of the GNU General Public License
--- as published by the Free Software Foundation; either version 2
--- of the License, or (at your option) any later version.
---
--- This program is distributed in the hope that it will be useful,
--- but WITHOUT ANY WARRANTY; without even the implied warranty of
--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
--- GNU General Public License for more details.
---
--- You should have received a copy of the GNU General Public License
--- along with this program; if not, write to the Free Software
--- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
--
local st = stanza;
local tostring = tostring;
-local pairs = pairs;
-local ipairs = ipairs;
-local type = type;
-local print = print;
-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");
module "xmlhandlers"
local ns_prefixes = {
- ["http://www.w3.org/XML/1998/namespace"] = "xml";
- }
+ ["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.."?(.*)$";
function init_xmlhandlers(session, stream_callbacks)
- local ns_stack = { "" };
- local curr_ns = "";
- local curr_tag;
- local chardata = {};
- local xml_handlers = {};
- local log = session.log or default_log;
+ local chardata = {};
+ local xml_handlers = {};
+ local log = session.log or default_log;
+
+ local cb_streamopened = stream_callbacks.streamopened;
+ local cb_streamclosed = stream_callbacks.streamclosed;
+ local cb_error = stream_callbacks.error or function(session, e) error("XML stream error: "..tostring(e)); end;
+ local cb_handlestanza = stream_callbacks.handlestanza;
+
+ local stream_ns = stream_callbacks.stream_ns or xmlns_streams;
+ local stream_tag = stream_ns..ns_separator..(stream_callbacks.stream_tag or "stream");
+ local stream_error_tag = stream_ns..ns_separator..(stream_callbacks.error_tag or "error");
+
+ local stream_default_ns = stream_callbacks.default_ns;
+
+ local stanza;
+ function xml_handlers:StartElement(tagname, attr)
+ if stanza and #chardata > 0 then
+ -- We have some character data in the buffer
+ stanza:text(t_concat(chardata));
+ chardata = {};
+ end
+ local curr_ns,name = tagname:match(ns_pattern);
+ if name == "" then
+ curr_ns, name = "", curr_ns;
+ end
- local send = session.send;
-
- local cb_streamopened = stream_callbacks.streamopened;
- local cb_streamclosed = stream_callbacks.streamclosed;
- local cb_error = stream_callbacks.error or function (e) error("XML stream error: "..tostring(e)); end;
- local cb_handlestanza = stream_callbacks.handlestanza;
+ if curr_ns ~= stream_default_ns then
+ attr.xmlns = curr_ns;
+ end
- local stanza
- function xml_handlers:StartElement(name, attr)
- if stanza and #chardata > 0 then
- -- We have some character data in the buffer
- stanza:text(t_concat(chardata));
- chardata = {};
- end
- curr_ns,name = name:match("^(.+)|([%w%-]+)$");
- if curr_ns ~= "jabber:server" then
- attr.xmlns = curr_ns;
+ -- 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
-
- -- FIXME !!!!!
- for i, k in ipairs(attr) do
- if type(k) == "string" then
- local ns, nm = k:match("^([^|]+)|?([^|]-)$")
- if ns and nm then
- ns = ns_prefixes[ns];
- if ns then
- attr[ns..":"..nm] = attr[k];
- attr[i] = ns..":"..nm;
- attr[k] = nil;
- end
+ end
+
+ if not stanza then --if we are not currently inside a stanza
+ if session.notopen then
+ if tagname == stream_tag then
+ if cb_streamopened then
+ cb_streamopened(session, attr);
end
+ else
+ -- Garbage before stream?
+ cb_error(session, "no-stream");
end
+ return;
+ end
+ if curr_ns == "jabber:client" and name ~= "iq" and name ~= "presence" and name ~= "message" then
+ cb_error(session, "invalid-top-level-element");
end
- if not stanza then --if we are not currently inside a stanza
- if session.notopen then
- if name == "stream" then
- if cb_streamopened then
- cb_streamopened(session, attr);
- end
- else
- -- Garbage before stream?
- cb_error("no-stream");
- end
- return;
- end
- if curr_ns == "jabber:client" and name ~= "iq" and name ~= "presence" and name ~= "message" then
- cb_error("invalid-top-level-element");
- end
-
- stanza = st.stanza(name, attr);
- curr_tag = stanza;
- else -- we are inside a stanza, so add a tag
- attr.xmlns = nil;
- if curr_ns ~= "jabber:server" and curr_ns ~= "jabber:client" then
- attr.xmlns = curr_ns;
- end
- stanza:tag(name, attr);
+ stanza = st.stanza(name, attr);
+ else -- we are inside a stanza, so add a tag
+ attr.xmlns = nil;
+ if curr_ns ~= stream_default_ns then
+ attr.xmlns = curr_ns;
end
+ stanza:tag(name, attr);
end
- function xml_handlers:CharacterData(data)
- if stanza then
- t_insert(chardata, data);
- end
+ end
+ function xml_handlers:CharacterData(data)
+ if stanza then
+ t_insert(chardata, data);
end
- function xml_handlers:EndElement(name)
- curr_ns,name = name:match("^(.+)|([%w%-]+)$");
- if (not stanza) or (#stanza.last_add > 0 and name ~= stanza.last_add[#stanza.last_add].name) then
- if name == "stream" then
- if cb_streamclosed then
- cb_streamclosed(session);
- end
- return;
- elseif name == "error" then
- cb_error("stream-error", stanza);
- else
- cb_error("parse-error", "unexpected-element-close", name);
- 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
- cb_handlestanza(session, 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