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
|
import * as http from 'http';
import * as https from 'https';
import CacheableLookup from 'cacheable-lookup';
import fetch from 'node-fetch';
import { HttpProxyAgent, HttpsProxyAgent } from 'hpagent';
import config from '@/config/index';
import { URL } from 'url';
export async function getJson(url: string, accept = 'application/json, */*', timeout = 10000, headers?: Record<string, string>) {
const res = await getResponse({
url,
method: 'GET',
headers: Object.assign({
'User-Agent': config.userAgent,
Accept: accept
}, headers || {}),
timeout
});
return await res.json();
}
export async function getHtml(url: string, accept = 'text/html, */*', timeout = 10000, headers?: Record<string, string>) {
const res = await getResponse({
url,
method: 'GET',
headers: Object.assign({
'User-Agent': config.userAgent,
Accept: accept
}, headers || {}),
timeout
});
return await res.text();
}
export async function getResponse(args: { url: string, method: string, body?: string, headers: Record<string, string>, timeout?: number, size?: number }) {
const timeout = args?.timeout || 10 * 1000;
const controller = new AbortController();
setTimeout(() => {
controller.abort();
}, timeout * 6);
const res = await fetch(args.url, {
method: args.method,
headers: args.headers,
body: args.body,
timeout,
size: args?.size || 10 * 1024 * 1024,
agent: getAgentByUrl,
signal: controller.signal,
});
if (!res.ok) {
throw new StatusError(`${res.status} ${res.statusText}`, res.status, res.statusText);
}
return res;
}
const cache = new CacheableLookup({
maxTtl: 3600, // 1hours
errorTtl: 30, // 30secs
lookup: false, // nativeのdns.lookupにfallbackしない
});
/**
* Get http non-proxy agent
*/
const _http = new http.Agent({
keepAlive: true,
keepAliveMsecs: 30 * 1000,
lookup: cache.lookup,
} as http.AgentOptions);
/**
* Get https non-proxy agent
*/
const _https = new https.Agent({
keepAlive: true,
keepAliveMsecs: 30 * 1000,
lookup: cache.lookup,
} as https.AgentOptions);
const maxSockets = Math.max(256, config.deliverJobConcurrency || 128);
/**
* Get http proxy or non-proxy agent
*/
export const httpAgent = config.proxy
? new HttpProxyAgent({
keepAlive: true,
keepAliveMsecs: 30 * 1000,
maxSockets,
maxFreeSockets: 256,
scheduling: 'lifo',
proxy: config.proxy
})
: _http;
/**
* Get https proxy or non-proxy agent
*/
export const httpsAgent = config.proxy
? new HttpsProxyAgent({
keepAlive: true,
keepAliveMsecs: 30 * 1000,
maxSockets,
maxFreeSockets: 256,
scheduling: 'lifo',
proxy: config.proxy
})
: _https;
/**
* Get agent by URL
* @param url URL
* @param bypassProxy Allways bypass proxy
*/
export function getAgentByUrl(url: URL, bypassProxy = false) {
if (bypassProxy || (config.proxyBypassHosts || []).includes(url.hostname)) {
return url.protocol == 'http:' ? _http : _https;
} else {
return url.protocol == 'http:' ? httpAgent : httpsAgent;
}
}
export class StatusError extends Error {
public statusCode: number;
public statusMessage?: string;
public isClientError: boolean;
constructor(message: string, statusCode: number, statusMessage?: string) {
super(message);
this.name = 'StatusError';
this.statusCode = statusCode;
this.statusMessage = statusMessage;
this.isClientError = typeof this.statusCode === 'number' && this.statusCode >= 400 && this.statusCode < 500;
}
}
|
