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
|
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const defer_to_connect_1 = require("defer-to-connect");
const util_1 = require("util");
const nodejsMajorVersion = Number(process.versions.node.split('.')[0]);
const timer = (request) => {
if (request.timings) {
return request.timings;
}
const timings = {
start: Date.now(),
socket: undefined,
lookup: undefined,
connect: undefined,
secureConnect: undefined,
upload: undefined,
response: undefined,
end: undefined,
error: undefined,
abort: undefined,
phases: {
wait: undefined,
dns: undefined,
tcp: undefined,
tls: undefined,
request: undefined,
firstByte: undefined,
download: undefined,
total: undefined
}
};
request.timings = timings;
const handleError = (origin) => {
const emit = origin.emit.bind(origin);
origin.emit = (event, ...args) => {
// Catches the `error` event
if (event === 'error') {
timings.error = Date.now();
timings.phases.total = timings.error - timings.start;
origin.emit = emit;
}
// Saves the original behavior
return emit(event, ...args);
};
};
handleError(request);
const onAbort = () => {
timings.abort = Date.now();
// Let the `end` response event be responsible for setting the total phase,
// unless the Node.js major version is >= 13.
if (!timings.response || nodejsMajorVersion >= 13) {
timings.phases.total = Date.now() - timings.start;
}
};
request.prependOnceListener('abort', onAbort);
const onSocket = (socket) => {
timings.socket = Date.now();
timings.phases.wait = timings.socket - timings.start;
if (util_1.types.isProxy(socket)) {
return;
}
const lookupListener = () => {
timings.lookup = Date.now();
timings.phases.dns = timings.lookup - timings.socket;
};
socket.prependOnceListener('lookup', lookupListener);
defer_to_connect_1.default(socket, {
connect: () => {
timings.connect = Date.now();
if (timings.lookup === undefined) {
socket.removeListener('lookup', lookupListener);
timings.lookup = timings.connect;
timings.phases.dns = timings.lookup - timings.socket;
}
timings.phases.tcp = timings.connect - timings.lookup;
// This callback is called before flushing any data,
// so we don't need to set `timings.phases.request` here.
},
secureConnect: () => {
timings.secureConnect = Date.now();
timings.phases.tls = timings.secureConnect - timings.connect;
}
});
};
if (request.socket) {
onSocket(request.socket);
}
else {
request.prependOnceListener('socket', onSocket);
}
const onUpload = () => {
var _a;
timings.upload = Date.now();
timings.phases.request = timings.upload - ((_a = timings.secureConnect) !== null && _a !== void 0 ? _a : timings.connect);
};
const writableFinished = () => {
if (typeof request.writableFinished === 'boolean') {
return request.writableFinished;
}
// Node.js doesn't have `request.writableFinished` property
return request.finished && request.outputSize === 0 && (!request.socket || request.socket.writableLength === 0);
};
if (writableFinished()) {
onUpload();
}
else {
request.prependOnceListener('finish', onUpload);
}
request.prependOnceListener('response', (response) => {
timings.response = Date.now();
timings.phases.firstByte = timings.response - timings.upload;
response.timings = timings;
handleError(response);
response.prependOnceListener('end', () => {
timings.end = Date.now();
timings.phases.download = timings.end - timings.response;
timings.phases.total = timings.end - timings.start;
});
response.prependOnceListener('aborted', onAbort);
});
return timings;
};
exports.default = timer;
// For CommonJS default export support
module.exports = timer;
module.exports.default = timer;
|
