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
|
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
const http = require('http');
const url = require('url');
//
// Slight variation on test-http-client-race to test for another race
// condition involving the parsers FreeList used internally by http.Client.
//
const body1_s = '1111111111111111';
const body2_s = '22222';
const body3_s = '3333333333333333333';
const server = http.createServer(function(req, res) {
const pathname = url.parse(req.url).pathname;
let body;
switch (pathname) {
case '/1': body = body1_s; break;
case '/2': body = body2_s; break;
default: body = body3_s;
}
res.writeHead(200, {
'Content-Type': 'text/plain',
'Content-Length': body.length
});
res.end(body);
});
server.listen(0);
let body1 = '';
let body2 = '';
let body3 = '';
server.on('listening', function() {
//
// Client #1 is assigned Parser #1
//
const req1 = http.get({ port: this.address().port, path: '/1' });
req1.on('response', function(res1) {
res1.setEncoding('utf8');
res1.on('data', function(chunk) {
body1 += chunk;
});
res1.on('end', function() {
//
// Delay execution a little to allow the 'close' event to be processed
// (required to trigger this bug!)
//
setTimeout(function() {
//
// The bug would introduce itself here: Client #2 would be allocated the
// parser that previously belonged to Client #1. But we're not finished
// with Client #1 yet!
//
// At this point, the bug would manifest itself and crash because the
// internal state of the parser was no longer valid for use by Client #1
//
const req2 = http.get({ port: server.address().port, path: '/2' });
req2.on('response', function(res2) {
res2.setEncoding('utf8');
res2.on('data', function(chunk) { body2 += chunk; });
res2.on('end', function() {
//
// Just to be really sure we've covered all our bases, execute a
// request using client2.
//
const req3 = http.get({ port: server.address().port, path: '/3' });
req3.on('response', function(res3) {
res3.setEncoding('utf8');
res3.on('data', function(chunk) { body3 += chunk; });
res3.on('end', function() { server.close(); });
});
});
});
}, 500);
});
});
});
process.on('exit', function() {
assert.strictEqual(body1_s, body1);
assert.strictEqual(body2_s, body2);
assert.strictEqual(body3_s, body3);
});
|
