#!/usr/bin/env lua
package.path = package.path:gsub("([^;]*)(?[^;]*)", "%1prosody/%2;%1%2");
package.cpath = package.cpath:gsub("([^;]*)(?[^;]*)", "%1prosody/%2;%1%2");
local t_insert = table.insert;
local t_sort = table.sort;
local jid = require "util.jid";
local st = require "util.stanza";
local xs = require "util.xmppstream";
local function skeleton(s)
local o = st.stanza(s.name, { xmlns = s.attr.xmlns });
local children = {};
for _, child in ipairs(s.tags) do t_insert(children, skeleton(child)) end
t_sort(children, function(a, b)
if a.attr.xmlns == b.attr.xmlns then return a.name < b.name; end
return (a.attr.xmlns or "") < (b.attr.xmlns or "");
end);
for _, child in ipairs(children) do o:add_direct_child(child); end
return o;
end
local function classify_jid(s)
if not s then return "" end
local u, h, r = jid.split(s);
if r then
return "full"
elseif u then
return "bare"
elseif h then
return "host"
else
return "invalid"
end
end
local stream_session = { notopen = true };
local stream_callbacks = { stream_ns = "jabber:client"; default_ns = "jabber:client" };
function stream_callbacks:handlestanza(item)
local clean = skeleton(item);
-- Normalize top level attributes
clean.attr.type = item.attr.type;
if clean.attr.type == nil and clean.name == "message" then clean.attr.type = "normal"; end
clean.attr.id = string.rep("x", math.floor(math.log(1 + #(item.attr.id or ""), 2)));
clean.attr.from = classify_jid(item.attr.from);
clean.attr.to = classify_jid(item.attr.to);
print(clean);
end
local stream = xs.new(stream_session, stream_callbacks);
assert(stream:feed(st.stanza("stream", { xmlns = "jabber:client" }):top_tag()));
stream_session.notopen = nil;
local data = io.read(4096);
while data do
stream:feed(data);
data = io.read(4096);
end
assert(stream:feed("</stream>"));