1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local socket = require "socket"
local mime = require "mime"
local url = require "socket.url"
local httpstream_new = require "util.httpstream".new;
local server = require "net.server"
local connlisteners_get = require "net.connlisteners".get;
local listener = connlisteners_get("httpclient") or error("No httpclient listener!");
local t_insert, t_concat = table.insert, table.concat;
local pairs, ipairs = pairs, ipairs;
local tonumber, tostring, xpcall, select, debug_traceback, char, format =
tonumber, tostring, xpcall, select, debug.traceback, string.char, string.format;
local log = require "util.logger".init("http");
module "http"
function urlencode(s) return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end)); end
function urldecode(s) return s and (s:gsub("%%(%x%x)", function (c) return char(tonumber(c,16)); end)); end
local function _formencodepart(s)
return s and (s:gsub("%W", function (c)
if c ~= " " then
return format("%%%02x", c:byte());
else
return "+";
end
end));
end
function formencode(form)
local result = {};
if form[1] then -- Array of ordered { name, value }
for _, field in ipairs(form) do
t_insert(result, _formencodepart(field.name).."=".._formencodepart(field.value));
end
else -- Unordered map of name -> value
for name, value in pairs(form) do
t_insert(result, _formencodepart(name).."=".._formencodepart(value));
end
end
return t_concat(result, "&");
end
function formdecode(s)
if not s:match("=") then return urldecode(s); end
local r = {};
for k, v in s:gmatch("([^=&]*)=([^&]*)") do
k, v = k:gsub("%+", "%%20"), v:gsub("%+", "%%20");
k, v = urldecode(k), urldecode(v);
t_insert(r, { name = k, value = v });
r[k] = v;
end
return r;
end
local function request_reader(request, data, startpos)
if not request.parser then
if not data then return; end
local function success_cb(r)
if request.callback then
for k,v in pairs(r) do request[k] = v; end
request.callback(r.body, r.code, request);
request.callback = nil;
end
destroy_request(request);
end
local function error_cb(r)
if request.callback then
request.callback(r or "connection-closed", 0, request);
request.callback = nil;
end
destroy_request(request);
end
local function options_cb()
return request;
end
request.parser = httpstream_new(success_cb, error_cb, "client", options_cb);
end
request.parser:feed(data);
end
local function handleerr(err) log("error", "Traceback[http]: %s: %s", tostring(err), debug_traceback()); end
function request(u, ex, callback)
local req = url.parse(u);
if not (req and req.host) then
callback(nil, 0, req);
return nil, "invalid-url";
end
if not req.path then
req.path = "/";
end
local method, headers, body;
headers = {
["Host"] = req.host;
["User-Agent"] = "Prosody XMPP Server";
};
if req.userinfo then
headers["Authorization"] = "Basic "..mime.b64(req.userinfo);
end
if ex then
req.onlystatus = ex.onlystatus;
body = ex.body;
if body then
method = "POST ";
headers["Content-Length"] = tostring(#body);
headers["Content-Type"] = "application/x-www-form-urlencoded";
end
if ex.method then method = ex.method; end
if ex.headers then
for k, v in pairs(ex.headers) do
headers[k] = v;
end
end
end
-- Attach to request object
req.method, req.headers, req.body = method, headers, body;
local using_https = req.scheme == "https";
local port = tonumber(req.port) or (using_https and 443 or 80);
-- Connect the socket, and wrap it with net.server
local conn = socket.tcp();
conn:settimeout(10);
local ok, err = conn:connect(req.host, port);
if not ok and err ~= "timeout" then
callback(nil, 0, req);
return nil, err;
end
req.handler, req.conn = server.wrapclient(conn, req.host, port, listener, "*a", using_https and { mode = "client", protocol = "sslv23" });
req.write = function (...) return req.handler:write(...); end
req.callback = function (content, code, request) log("debug", "Calling callback, status %s", code or "---"); return select(2, xpcall(function () return callback(content, code, request) end, handleerr)); end
req.reader = request_reader;
req.state = "status";
listener.register_request(req.handler, req);
return req;
end
function destroy_request(request)
if request.conn then
request.conn = nil;
request.handler:close()
listener.ondisconnect(request.handler, "closed");
end
end
_M.urlencode = urlencode;
return _M;
|
