|
0
|
1 local t_insert = table.insert;
|
|
|
2 local t_remove = table.remove;
|
|
|
3 local format = string.format;
|
|
|
4 local tostring = tostring;
|
|
|
5 local setmetatable= setmetatable;
|
|
|
6 local pairs = pairs;
|
|
|
7 local ipairs = ipairs;
|
|
|
8
|
|
|
9 module "stanza"
|
|
|
10
|
|
|
11 stanza_mt = {};
|
|
|
12 stanza_mt.__index = stanza_mt;
|
|
|
13
|
|
|
14 function stanza(name, attr)
|
|
|
15 local stanza = { name = name, attr = attr or {}, last_add = {}};
|
|
|
16 return setmetatable(stanza, stanza_mt);
|
|
|
17 end
|
|
|
18
|
|
|
19 function stanza_mt:iq(attrs)
|
|
|
20 return self + stanza("iq", attrs)
|
|
|
21 end
|
|
|
22 function stanza_mt:message(attrs)
|
|
|
23 return self + stanza("message", attrs)
|
|
|
24 end
|
|
|
25 function stanza_mt:presence(attrs)
|
|
|
26 return self + stanza("presence", attrs)
|
|
|
27 end
|
|
|
28 function stanza_mt:query(xmlns)
|
|
|
29 return self:tag("query", { xmlns = xmlns });
|
|
|
30 end
|
|
|
31 function stanza_mt:tag(name, attrs)
|
|
|
32 local s = stanza(name, attrs);
|
|
|
33 (self.last_add[#self.last_add] or self):add_child(s);
|
|
|
34 t_insert(self.last_add, s);
|
|
|
35 return self;
|
|
|
36 end
|
|
|
37
|
|
|
38 function stanza_mt:text(text)
|
|
|
39 (self.last_add[#self.last_add] or self):add_child(text);
|
|
|
40 return self;
|
|
|
41 end
|
|
|
42
|
|
|
43 function stanza_mt:up()
|
|
|
44 t_remove(self.last_add);
|
|
|
45 return self;
|
|
|
46 end
|
|
|
47
|
|
|
48 function stanza_mt:add_child(child)
|
|
|
49 t_insert(self, child);
|
|
|
50 end
|
|
|
51
|
|
|
52 function stanza_mt:child_with_name(name)
|
|
|
53 for _, child in ipairs(self) do
|
|
|
54 if child.name == name then return child; end
|
|
|
55 end
|
|
|
56 end
|
|
|
57
|
|
|
58 function stanza_mt.__tostring(t)
|
|
|
59 local children_text = "";
|
|
|
60 for n, child in ipairs(t) do
|
|
|
61 children_text = children_text .. tostring(child);
|
|
|
62 end
|
|
|
63
|
|
|
64 local attr_string = "";
|
|
|
65 if t.attr then
|
|
|
66 for k, v in pairs(t.attr) do attr_string = attr_string .. format(" %s='%s'", k, tostring(v)); end
|
|
|
67 end
|
|
|
68
|
|
|
69 return format("<%s%s>%s</%s>", t.name, attr_string, children_text, t.name);
|
|
|
70 end
|
|
|
71
|
|
|
72 function stanza_mt.__add(s1, s2)
|
|
|
73 return s:add_child(s2);
|
|
|
74 end
|
|
|
75
|
|
|
76
|
|
|
77 do
|
|
|
78 local id = 0;
|
|
|
79 function new_id()
|
|
|
80 id = id + 1;
|
|
|
81 return "lx"..id;
|
|
|
82 end
|
|
|
83 end
|
|
|
84
|
|
|
85 function message(attr, body)
|
|
|
86 if not body then
|
|
|
87 return stanza("message", attr);
|
|
|
88 else
|
|
|
89 return stanza("message", attr):tag("body"):text(body);
|
|
|
90 end
|
|
|
91 end
|
|
|
92 function iq(attr)
|
|
|
93 if attr and not attr.id then attr.id = new_id(); end
|
|
|
94 return stanza("iq", attr or { id = new_id() });
|
|
|
95 end
|
|
|
96
|
|
|
97 function reply(orig)
|
|
|
98 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) });
|
|
|
99 end
|
|
|
100
|
|
|
101 function presence(attr)
|
|
|
102 return stanza("presence", attr);
|
|
|
103 end
|
|
|
104
|
