author | Matthew Wild <mwild1@gmail.com> |
Wed, 01 May 2013 13:54:44 +0100 | |
branch | tls |
changeset 5556 | 7407b1160b46 |
parent 62 | 9ec0d447cc9e |
child 70 | a6c00467a3f8 |
permissions | -rw-r--r-- |
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local t_insert = table.insert; |
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local t_remove = table.remove; |
23 | 3 |
local s_format = string.format; |
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local tostring = tostring; |
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local setmetatable = setmetatable; |
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local pairs = pairs; |
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local ipairs = ipairs; |
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local type = type; |
4 | 9 |
local s_gsub = string.gsub; |
0 | 10 |
module "stanza" |
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stanza_mt = {}; |
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stanza_mt.__index = stanza_mt; |
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function stanza(name, attr) |
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local stanza = { name = name, attr = attr or {}, tags = {}, last_add = {}}; |
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return setmetatable(stanza, stanza_mt); |
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end |
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function stanza_mt:query(xmlns) |
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return self:tag("query", { xmlns = xmlns }); |
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end |
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function stanza_mt:tag(name, attrs) |
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local s = stanza(name, attrs); |
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(self.last_add[#self.last_add] or self):add_child(s); |
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t_insert(self.last_add, s); |
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return self; |
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end |
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function stanza_mt:text(text) |
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(self.last_add[#self.last_add] or self):add_child(text); |
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return self; |
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end |
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function stanza_mt:up() |
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t_remove(self.last_add); |
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return self; |
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end |
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function stanza_mt:add_child(child) |
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if type(child) == "table" then |
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t_insert(self.tags, child); |
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end |
0 | 44 |
t_insert(self, child); |
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end |
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function stanza_mt:child_with_name(name) |
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for _, child in ipairs(self) do |
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if child.name == name then return child; end |
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end |
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end |
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function stanza_mt:children() |
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local i = 0; |
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return function (a) |
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i = i + 1 |
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local v = a[i] |
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if v then return v; end |
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end, self, i; |
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end |
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function stanza_mt:childtags() |
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local i = 0; |
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return function (a) |
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i = i + 1 |
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local v = self.tags[i] |
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if v then return v; end |
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end, self.tags[1], i; |
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end |
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4 | 72 |
do |
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local xml_entities = { ["'"] = "'", ["\""] = """, ["<"] = "<", [">"] = ">", ["&"] = "&" }; |
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function xml_escape(s) return s_gsub(s, "['&<>\"]", xml_entities); end |
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end |
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local xml_escape = xml_escape; |
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function stanza_mt.__tostring(t) |
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local children_text = ""; |
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for n, child in ipairs(t) do |
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4 | 82 |
if type(child) == "string" then |
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children_text = children_text .. xml_escape(child); |
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else |
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children_text = children_text .. tostring(child); |
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end |
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0 | 87 |
end |
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local attr_string = ""; |
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if t.attr then |
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23 | 91 |
for k, v in pairs(t.attr) do if type(k) == "string" then attr_string = attr_string .. s_format(" %s='%s'", k, tostring(v)); end end |
0 | 92 |
end |
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return s_format("<%s%s>%s</%s>", t.name, attr_string, children_text, t.name); |
0 | 95 |
end |
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function stanza_mt.__add(s1, s2) |
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return s1:add_child(s2); |
0 | 99 |
end |
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do |
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local id = 0; |
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function new_id() |
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id = id + 1; |
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return "lx"..id; |
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end |
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end |
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function message(attr, body) |
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if not body then |
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return stanza("message", attr); |
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else |
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return stanza("message", attr):tag("body"):text(body); |
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end |
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end |
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function iq(attr) |
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if attr and not attr.id then attr.id = new_id(); end |
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return stanza("iq", attr or { id = new_id() }); |
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end |
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function reply(orig) |
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return stanza(orig.name, orig.attr and { to = orig.attr.from, from = orig.attr.to, id = orig.attr.id, type = ((orig.name == "iq" and "result") or nil) }); |
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end |
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60
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
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function error_reply(orig, type, condition, message, clone) |
44800be871f5
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local r = reply(orig); |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
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t.attr.type = "error"; |
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parents:
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129 |
-- TODO use clone |
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t:tag("error", {type = type}) |
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:tag(condition, {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); |
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if (message) then t:tag("text"):text(message):up(); end |
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133 |
return t; -- stanza ready for adding app-specific errors |
44800be871f5
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parents:
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end |
44800be871f5
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parents:
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0 | 136 |
function presence(attr) |
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return stanza("presence", attr); |
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end |
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return _M; |