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
191
192
193
194
195
196
197
|
'use strict'
const { createServer } = require('http')
const { Agent, request } = require('../../index')
const DecoratorHandler = require('../../lib/handler/DecoratorHandler')
/* global expect */
const defaultOpts = { keepAliveTimeout: 10, keepAliveMaxTimeout: 10 }
describe('interceptors', () => {
let server
beforeEach(async () => {
server = createServer((req, res) => {
res.setHeader('Content-Type', 'text/plain')
res.end('hello')
})
await new Promise((resolve) => { server.listen(0, resolve) })
})
afterEach(async () => {
await new Promise((resolve) => server.close(resolve))
})
test('interceptors are applied on client from an agent', async () => {
const interceptors = []
const buildInterceptor = dispatch => {
const interceptorContext = { requestCount: 0 }
interceptors.push(interceptorContext)
return (opts, handler) => {
interceptorContext.requestCount++
return dispatch(opts, handler)
}
}
const opts = { interceptors: { Client: [buildInterceptor] }, ...defaultOpts }
const agent = new Agent(opts)
const origin = new URL(`http://localhost:${server.address().port}`)
await Promise.all([
request(origin, { dispatcher: agent }),
request(origin, { dispatcher: agent })
])
// Assert that the requests are run on different interceptors (different Clients)
const requestCounts = interceptors.map(x => x.requestCount)
expect(requestCounts).toEqual([1, 1])
})
test('interceptors are applied in the correct order', async () => {
const setHeaderInterceptor = (dispatch) => {
return (opts, handler) => {
opts.headers.push('foo', 'bar')
return dispatch(opts, handler)
}
}
const assertHeaderInterceptor = (dispatch) => {
return (opts, handler) => {
expect(opts.headers).toEqual(['foo', 'bar'])
return dispatch(opts, handler)
}
}
const opts = { interceptors: { Pool: [setHeaderInterceptor, assertHeaderInterceptor] }, ...defaultOpts }
const agent = new Agent(opts)
const origin = new URL(`http://localhost:${server.address().port}`)
await request(origin, { dispatcher: agent, headers: [] })
})
test('interceptors handlers are called in reverse order', async () => {
const clearResponseHeadersInterceptor = (dispatch) => {
return (opts, handler) => {
class ResultInterceptor extends DecoratorHandler {
onHeaders (statusCode, headers, resume) {
return super.onHeaders(statusCode, [], resume)
}
}
return dispatch(opts, new ResultInterceptor(handler))
}
}
const assertHeaderInterceptor = (dispatch) => {
return (opts, handler) => {
class ResultInterceptor extends DecoratorHandler {
onHeaders (statusCode, headers, resume) {
expect(headers).toEqual([])
return super.onHeaders(statusCode, headers, resume)
}
}
return dispatch(opts, new ResultInterceptor(handler))
}
}
const opts = { interceptors: { Agent: [assertHeaderInterceptor, clearResponseHeadersInterceptor] }, ...defaultOpts }
const agent = new Agent(opts)
const origin = new URL(`http://localhost:${server.address().port}`)
await request(origin, { dispatcher: agent, headers: [] })
})
})
describe('interceptors with NtlmRequestHandler', () => {
class FakeNtlmRequestHandler {
constructor (dispatch, opts, handler) {
this.dispatch = dispatch
this.opts = opts
this.handler = handler
this.requestCount = 0
}
onConnect (...args) {
return this.handler.onConnect(...args)
}
onError (...args) {
return this.handler.onError(...args)
}
onUpgrade (...args) {
return this.handler.onUpgrade(...args)
}
onHeaders (statusCode, headers, resume, statusText) {
this.requestCount++
if (this.requestCount < 2) {
// Do nothing
} else {
return this.handler.onHeaders(statusCode, headers, resume, statusText)
}
}
onData (...args) {
if (this.requestCount < 2) {
// Do nothing
} else {
return this.handler.onData(...args)
}
}
onComplete (...args) {
if (this.requestCount < 2) {
this.dispatch(this.opts, this)
} else {
return this.handler.onComplete(...args)
}
}
onBodySent (...args) {
if (this.requestCount < 2) {
// Do nothing
} else {
return this.handler.onBodySent(...args)
}
}
}
let server
beforeEach(async () => {
// This Test is important because NTLM and Negotiate require several
// http requests in sequence to run on the same keepAlive socket
const socketRequestCountSymbol = Symbol('Socket Request Count')
server = createServer((req, res) => {
if (req.socket[socketRequestCountSymbol] === undefined) {
req.socket[socketRequestCountSymbol] = 0
}
req.socket[socketRequestCountSymbol]++
res.setHeader('Content-Type', 'text/plain')
// Simulate NTLM/Negotiate logic, by returning 200
// on the second request of each socket
if (req.socket[socketRequestCountSymbol] >= 2) {
res.statusCode = 200
res.end()
} else {
res.statusCode = 401
res.end()
}
})
await new Promise((resolve) => { server.listen(0, resolve) })
})
afterEach(async () => {
await new Promise((resolve) => server.close(resolve))
})
test('Retry interceptor on Client will use the same socket', async () => {
const interceptor = dispatch => {
return (opts, handler) => {
return dispatch(opts, new FakeNtlmRequestHandler(dispatch, opts, handler))
}
}
const opts = { interceptors: { Client: [interceptor] }, ...defaultOpts }
const agent = new Agent(opts)
const origin = new URL(`http://localhost:${server.address().port}`)
const { statusCode } = await request(origin, { dispatcher: agent, headers: [] })
expect(statusCode).toEqual(200)
})
})
|
