blob: d286152d240fb2eb78456fd1f537c75e57326ffd (
plain)
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
|
import './style.scss'
import React from 'react'
import ReactDOM from 'react-dom'
class IPAddress extends React.Component {
constructor(props) {
super(props)
this.state = {
octets: [10, 88, 135, 144],
cidr: 28,
}
}
handleChange = (event) => {
var octets = this.state.octets
var val = +event.target.value.replace(/[^0-9]/g, '')
var octet = event.target.attributes['data-octet'].value
if (octet == 'cidr') {
if (val <= 32) {
this.setState({
cidr: val
})
}
}
else {
if (val <= 255) {
octets[+octet] = val
this.setState({
octets: octets
})
}
}
}
getPretty = () => {
return this.state.octets.join('.') + '/' + this.state.cidr
}
getNetmask = () => {
if (this.state.cidr == 0) {
return '0.0.0.0'
}
else {
return [...Array(4)].map((x, octet) =>
((((0xFFFFFFFF << (32 - this.state.cidr)) >>> 0) >>> (3-octet)*8) & 0xFF)
).join('.')
}
}
getCount = () => {
if (this.state.cidr == 32) {
return 1;
}
return ((0xFFFFFFFF >>> this.state.cidr) >>> 0) + 1
}
render() {
return <div className="ip-address">
<div className="address">
{[...Array(4)].map((x, octet) =>
<span className="octet">
<input className="octet" type="text" data-octet={octet} onChange={this.handleChange} value={this.state.octets[octet]}/>
<span className="dot">{octet == '3' ? '/' : '.'}</span>
</span>
)}
<input className="cidr" type="text" data-octet="cidr" onChange={this.handleChange} value={this.state.cidr}/>
</div>
<div className="bits">
<ol>
{[...Array(4)].map((x, octet) =>
<li className="octet">
<ol>
{[...Array(8)].map((x, bit) =>
<li className={((octet*8)+bit) > this.state.cidr-1 ? 'bit masked' : 'bit unmasked'}>{(this.state.octets[octet] & (1 << (7-bit))) >> (7-bit)}</li>
)}
</ol>
</li>
)}
</ol>
</div>
<div className="details">
<span className="netmask">
<span className="value">{this.getNetmask()}</span>
<span className="label">Netmask</span>
</span>
<span className="count">
<span className="value">{this.getCount().toLocaleString()}</span>
<span className="label">Addresses</span>
</span>
</div>
</div>
}
}
ReactDOM.render(<IPAddress />, document.getElementById('app'))
|
