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
|
'use strict';
var http = require('http');
var fixed = 'C'.repeat(20 * 1024);
var storedBytes = Object.create(null);
var storedBuffer = Object.create(null);
var storedUnicode = Object.create(null);
var useDomains = process.env.NODE_USE_DOMAINS;
// set up one global domain.
if (useDomains) {
var domain = require('domain');
var gdom = domain.create();
gdom.on('error', function(er) {
console.error('Error on global domain', er);
throw er;
});
gdom.enter();
}
module.exports = http.createServer(function(req, res) {
if (useDomains) {
var dom = domain.create();
dom.add(req);
dom.add(res);
}
// URL format: /<type>/<length>/<chunks>/<responseBehavior>
var params = req.url.split('/');
var command = params[1];
var body = '';
var arg = params[2];
var n_chunks = parseInt(params[3], 10);
var resHow = (params.length >= 5 ? params[4] : 'normal');
var status = 200;
var n, i;
if (command === 'bytes') {
n = ~~arg;
if (n <= 0)
throw new Error('bytes called with n <= 0');
if (storedBytes[n] === undefined) {
storedBytes[n] = 'C'.repeat(n);
}
body = storedBytes[n];
} else if (command === 'buffer') {
n = ~~arg;
if (n <= 0)
throw new Error('buffer called with n <= 0');
if (storedBuffer[n] === undefined) {
storedBuffer[n] = Buffer.allocUnsafe(n);
for (i = 0; i < n; i++) {
storedBuffer[n][i] = 'C'.charCodeAt(0);
}
}
body = storedBuffer[n];
} else if (command === 'unicode') {
n = ~~arg;
if (n <= 0)
throw new Error('unicode called with n <= 0');
if (storedUnicode[n] === undefined) {
storedUnicode[n] = '\u263A'.repeat(n);
}
body = storedUnicode[n];
} else if (command === 'quit') {
res.connection.server.close();
body = 'quitting';
} else if (command === 'fixed') {
body = fixed;
} else if (command === 'echo') {
switch (resHow) {
case 'setHeader':
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.setHeader('Transfer-Encoding', 'chunked');
break;
case 'setHeaderWH':
res.setHeader('Content-Type', 'text/plain');
res.writeHead(200, { 'Transfer-Encoding': 'chunked' });
break;
default:
res.writeHead(200, {
'Content-Type': 'text/plain',
'Transfer-Encoding': 'chunked'
});
}
req.pipe(res);
return;
} else {
status = 404;
body = 'not found\n';
}
// example: http://localhost:port/bytes/512/4
// sends a 512 byte body in 4 chunks of 128 bytes
if (n_chunks > 0) {
switch (resHow) {
case 'setHeader':
res.statusCode = status;
res.setHeader('Content-Type', 'text/plain');
res.setHeader('Transfer-Encoding', 'chunked');
break;
case 'setHeaderWH':
res.setHeader('Content-Type', 'text/plain');
res.writeHead(status, { 'Transfer-Encoding': 'chunked' });
break;
default:
res.writeHead(status, {
'Content-Type': 'text/plain',
'Transfer-Encoding': 'chunked'
});
}
// send body in chunks
var len = body.length;
var step = Math.floor(len / n_chunks) || 1;
for (i = 0, n = (n_chunks - 1); i < n; ++i) {
res.write(body.slice(i * step, i * step + step));
}
res.end(body.slice((n_chunks - 1) * step));
} else {
switch (resHow) {
case 'setHeader':
res.statusCode = status;
res.setHeader('Content-Type', 'text/plain');
res.setHeader('Content-Length', body.length.toString());
break;
case 'setHeaderWH':
res.setHeader('Content-Type', 'text/plain');
res.writeHead(status, { 'Content-Length': body.length.toString() });
break;
default:
res.writeHead(status, {
'Content-Type': 'text/plain',
'Content-Length': body.length.toString()
});
}
res.end(body);
}
});
|
