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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
--
-- This file is part of LEM, a Lua Event Machine.
-- Copyright 2011-2012 Emil Renner Berthing
-- Copyright 2012 Asbjørn Sloth Tønnesen
--
-- LEM 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 3 of
-- the License, or (at your option) any later version.
--
-- LEM 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 LEM. If not, see <http://www.gnu.org/licenses/>.
--
local server = require 'lem.http.server'
local M = {}
function M.not_found(req, res)
if req.headers['Expect'] ~= '100-continue' then
req:body()
end
res.status = 404
res.headers['Content-Type'] = 'text/html; charset=UTF-8'
res:add([[
<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Not Found</title>
</head>
<body>
<h1>Not found</h1>
</body>
</html>
]])
end
M.status_string = server.status_string
M.method_not_allowed = server.method_not_allowed
function M.debug() end
do
local lookup = {}
M.lookup = lookup
function M.GET(uri, handler)
local path = lookup[uri]
if path then
path['HEAD'] = handler
path['GET'] = handler
else
path = {
['HEAD'] = handler,
['GET'] = handler,
}
lookup[uri] = path
end
end
do
local function static_setter(method)
return function(uri, handler)
local path = lookup[uri]
if path then
path[method] = handler
else
lookup[uri] = { [method] = handler }
end
end
end
M.POST = static_setter('POST')
M.PUT = static_setter('PUT')
M.DELETE = static_setter('DELETE')
end
function M.GETM(pattern, handler)
local i = 1
while true do
local entry = lookup[i]
if entry == nil then
lookup[i] = { pattern,
['GET'] = handler,
['HEAD'] = handler
}
break
end
if entry[1] == pattern then
entry['GET'] = handler
entry['HEAD'] = handler
break
end
i = i + 1
end
end
do
local function match_setter(method)
return function(pattern, handler)
local i = 1
while true do
local entry = lookup[i]
if entry == nil then
lookup[i] = { pattern, [method] = handler }
break
end
if entry[1] == pattern then
entry[method] = handler
break
end
i = i + 1
end
end
end
M.POSTM = match_setter('POST')
M.PUTM = match_setter('PUT')
M.DELETEM = match_setter('DELETE')
end
local function check_match(entry, req, res, ok, ...)
if not ok then return false end
local handler = entry[req.method]
if handler then
handler(req, res, ok, ...)
else
M.method_not_allowed(req, res)
end
return true
end
local function handler(req, res)
local method, uri, version = req.method, req.uri, req.version
local path = lookup[uri]
if path then
local handler = path[method]
if handler then
handler(req, res)
else
M.method_not_allowed(req, res)
end
else
local i = 0
repeat
i = i + 1
local entry = lookup[i]
if not entry then
M.not_found(req, res)
break
end
until check_match(entry, req, res, uri:match(entry[1]))
end
end
function M.Hathaway(address, port)
local ret, err = server.tcp4_listen(address, port, handler)
if not ret then M.debug(err) return nil, err end
M.server = server.server
return true
end
end
function M.import(env)
if not env then
env = _G
end
env.GET = M.GET
env.POST = M.POST
env.PUT = M.PUT
env.DELETE = M.DELETE
env.GETM = M.GETM
env.POSTM = M.POSTM
env.PUTM = M.PUTM
env.DELETEM = M.DELETEM
env.Hathaway = M.Hathaway
end
return M
-- vim: ts=2 sw=2 noet:
|
