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
|
'use strict'
const Url = require('url')
const Minipass = require('minipass')
const Headers = require('./headers.js')
const { exportNodeCompatibleHeaders } = Headers
const Body = require('./body.js')
const { clone, extractContentType, getTotalBytes } = Body
const version = require('../package.json').version
const defaultUserAgent =
`minipass-fetch/${version} (+https://github.com/isaacs/minipass-fetch)`
const INTERNALS = Symbol('Request internals')
const { parse: parseUrl, format: formatUrl } = Url
const isRequest = input =>
typeof input === 'object' && typeof input[INTERNALS] === 'object'
const isAbortSignal = signal => {
const proto = (
signal
&& typeof signal === 'object'
&& Object.getPrototypeOf(signal)
)
return !!(proto && proto.constructor.name === 'AbortSignal')
}
class Request extends Body {
constructor (input, init = {}) {
const parsedURL = isRequest(input) ? Url.parse(input.url)
: input && input.href ? Url.parse(input.href)
: Url.parse(`${input}`)
if (!isRequest(input))
input = {}
const method = (init.method || input.method || 'GET').toUpperCase()
const isGETHEAD = method === 'GET' || method === 'HEAD'
if ((init.body !== null && init.body !== undefined ||
isRequest(input) && input.body !== null) && isGETHEAD)
throw new TypeError('Request with GET/HEAD method cannot have body')
const inputBody = init.body !== null && init.body !== undefined ? init.body
: isRequest(input) && input.body !== null ? clone(input)
: null
super(inputBody, {
timeout: init.timeout || input.timeout || 0,
size: init.size || input.size || 0,
})
const headers = new Headers(init.headers || input.headers || {})
if (inputBody !== null && inputBody !== undefined &&
!headers.has('Content-Type')) {
const contentType = extractContentType(inputBody)
if (contentType)
headers.append('Content-Type', contentType)
}
const signal = 'signal' in init ? init.signal
: isRequest(input) ? input.signal
: null
if (signal !== null && signal !== undefined && !isAbortSignal(signal))
throw new TypeError('Expected signal must be an instanceof AbortSignal')
this[INTERNALS] = {
method,
redirect: init.redirect || input.redirect || 'follow',
headers,
parsedURL,
signal,
}
// node-fetch-only options
this.follow = init.follow !== undefined ? init.follow
: input.follow !== undefined ? input.follow
: 20
this.compress = init.compress !== undefined ? init.compress
: input.compress !== undefined ? input.compress
: true
this.counter = init.counter || input.counter || 0
this.agent = init.agent || input.agent
}
get method() {
return this[INTERNALS].method;
}
get url() {
return formatUrl(this[INTERNALS].parsedURL);
}
get headers() {
return this[INTERNALS].headers;
}
get redirect() {
return this[INTERNALS].redirect;
}
get signal() {
return this[INTERNALS].signal;
}
clone () {
return new Request(this)
}
get [Symbol.toStringTag] () {
return 'Request'
}
static getNodeRequestOptions (request) {
const parsedURL = request[INTERNALS].parsedURL
const headers = new Headers(request[INTERNALS].headers)
// fetch step 1.3
if (!headers.has('Accept'))
headers.set('Accept', '*/*')
// Basic fetch
if (!parsedURL.protocol || !parsedURL.hostname)
throw new TypeError('Only absolute URLs are supported')
if (!/^https?:$/.test(parsedURL.protocol))
throw new TypeError('Only HTTP(S) protocols are supported')
if (request.signal &&
Minipass.isStream(request.body) &&
typeof request.body.destroy !== 'function') {
throw new Error(
'Cancellation of streamed requests with AbortSignal is not supported')
}
// HTTP-network-or-cache fetch steps 2.4-2.7
const contentLengthValue =
(request.body === null || request.body === undefined) &&
/^(POST|PUT)$/i.test(request.method) ? '0'
: request.body !== null && request.body !== undefined
? getTotalBytes(request)
: null
if (contentLengthValue)
headers.set('Content-Length', contentLengthValue + '');
// HTTP-network-or-cache fetch step 2.11
if (!headers.has('User-Agent'))
headers.set('User-Agent', defaultUserAgent)
// HTTP-network-or-cache fetch step 2.15
if (request.compress && !headers.has('Accept-Encoding'))
headers.set('Accept-Encoding', 'gzip,deflate')
const agent = typeof request.agent === 'function'
? request.agent(parsedURL)
: request.agent
if (!headers.has('Connection') && !agent)
headers.set('Connection', 'close');
// HTTP-network fetch step 4.2
// chunked encoding is handled by Node.js
return {
...parsedURL,
method: request.method,
headers: exportNodeCompatibleHeaders(headers),
agent,
}
}
}
module.exports = Request
Object.defineProperties(Request.prototype, {
method: { enumerable: true },
url: { enumerable: true },
headers: { enumerable: true },
redirect: { enumerable: true },
clone: { enumerable: true },
signal: { enumerable: true },
})
|
