data-toolbox-site/src/tools/networking/ipv4subnetting/IPv4SubnettingTool.tsx

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12 KiB
TypeScript

import React, { useEffect, useRef, useState } from "react";
import { useTranslation, Trans } from "react-i18next";
import * as styles from "./IPv4SubnettingTool.module.scss"
import { Helmet } from "react-helmet";
const intToIPv4String = (ip: number): string => {
let out = ""
for (let group = 0; group < 4; group++) {
let groupBin = ip & 0xff
out = groupBin.toString()+"."+out
ip >>= 8;
}
return out.substring(0, out.length-1)
}
const IPv4SubnettingTool = () => {
const { t } = useTranslation();
let [ipPart1, setIPPart1] = useState("");
let [ipPart2, setIPPart2] = useState("");
let [ipPart3, setIPPart3] = useState("");
let [ipPart4, setIPPart4] = useState("");
let [subnet, setSubnet] = useState("");
let ipInput1 = useRef<HTMLInputElement>(null)
let ipInput2 = useRef<HTMLInputElement>(null)
let ipInput3 = useRef<HTMLInputElement>(null)
let ipInput4 = useRef<HTMLInputElement>(null)
let subnetInput = useRef<HTMLInputElement>(null)
let [ipBinary, setIpBinary] = useState<number|undefined>(undefined);
let [subnetNumber, setSubnetMaskNumber] = useState<number|undefined>(undefined);
let [subnetMask, setSubnetMask] = useState<number|undefined>(undefined);
let [firstAddr, setFirstAddr] = useState<number|undefined>(undefined);
let [lastAddr, setLastAddr] = useState<number|undefined>(undefined);
let [isPeerNet, setIsPeerNet] = useState<boolean>(false);
useEffect(() => {
let myIpPart1 = ipPart1;
let myIpPart2 = ipPart2;
let myIpPart3 = ipPart3;
let myIpPart4 = ipPart4;
let mySubnet = subnet;
if(myIpPart1.indexOf(".") !== -1) {
let split = myIpPart1.split(".")
myIpPart1 = split.shift()!
myIpPart2 = split.join(".")
ipInput2.current?.focus()
}
if(myIpPart2.indexOf(".") !== -1) {
let split = myIpPart2.split(".")
myIpPart2 = split.shift()!
myIpPart3 = split.join(".")
ipInput3.current?.focus()
}
if(myIpPart3.indexOf(".") !== -1) {
let split = myIpPart3.split(".")
myIpPart3 = split.shift()!
myIpPart4 = split.join(".")
ipInput4.current?.focus()
}
if(myIpPart4.indexOf("/") !== -1) {
let split = myIpPart4.split("/")
myIpPart4 = split.shift()!
mySubnet = split.join("/")
subnetInput.current?.focus()
}
if(myIpPart4.indexOf(".") !== -1) {
let split = myIpPart4.split(".")
myIpPart4 = split.shift()!
mySubnet = split.join(".")
subnetInput.current?.focus()
}
let ipPart1Num = parseInt(myIpPart1);
let ipPart2Num = parseInt(myIpPart2);
let ipPart3Num = parseInt(myIpPart3);
let ipPart4Num = parseInt(myIpPart4);
let subnetNum = parseInt(mySubnet);
if(!isNaN(ipPart1Num)) setIPPart1(ipPart1Num.toString());
if(!isNaN(ipPart2Num)) setIPPart2(ipPart2Num.toString());
if(!isNaN(ipPart3Num)) setIPPart3(ipPart3Num.toString());
if(!isNaN(ipPart4Num)) setIPPart4(ipPart4Num.toString());
if(!isNaN(subnetNum)) setSubnet(subnetNum.toString());
let invalid = false;
[ipInput1, ipInput2, ipInput3, ipInput4].forEach((field) => {
if(!field.current) return
const val = field.current.value;
if (val === "") {
field.current.setCustomValidity("");
return
}
const valInt = parseInt(val);
if(isNaN(valInt)) {
field.current.setCustomValidity(t("tools.networking.ipv4subnetting.error.isNaN"));
field.current.reportValidity();
invalid = true;
return
}
if(valInt < 0) {
field.current.setCustomValidity(t("tools.networking.ipv4subnetting.error.tooSmall"));
field.current.reportValidity();
invalid = true;
return
}
if(valInt > 255) {
field.current.setCustomValidity(t("tools.networking.ipv4subnetting.error.tooBig"));
field.current.reportValidity();
invalid = true;
return
}
field.current.setCustomValidity("");
});
((field: React.RefObject<HTMLInputElement>) => {
if(!field.current) return
const val = field.current.value;
if (val === "") {
field.current.setCustomValidity("");
return
}
const valInt = parseInt(val);
if(isNaN(valInt)) {
field.current.setCustomValidity(t("tools.networking.ipv4subnetting.error.isNaN"));
field.current.reportValidity();
invalid = true;
return
}
if(valInt < 0) {
field.current.setCustomValidity(t("tools.networking.ipv4subnetting.error.tooSmall"));
field.current.reportValidity();
invalid = true;
return
}
if(valInt > 32) {
field.current.setCustomValidity(t("tools.networking.ipv4subnetting.error.tooBigSubnet"));
field.current.reportValidity();
invalid = true;
return
}
field.current.setCustomValidity("");
})(subnetInput)
setIpBinary(undefined);
setFirstAddr(undefined);
setLastAddr(undefined);
setSubnetMaskNumber(undefined);
setSubnetMask(undefined);
setIsPeerNet(false);
if(invalid) return;
if(!isNaN(ipPart1Num) && !isNaN(ipPart2Num) && !isNaN(ipPart3Num) && !isNaN(ipPart4Num)) {
let ipBinary = ipPart1Num * Math.pow(2, 24) + ipPart2Num * Math.pow(2, 16) + ipPart3Num * Math.pow(2, 8) + ipPart4Num;
setIpBinary(ipBinary);
if (!isNaN(subnetNum)) {
setSubnetMaskNumber(subnetNum);
let peerNet = false;
if (subnetNum > 30) {
setIsPeerNet(true);
peerNet = true;
}
let subnetMaskBinary = new Uint32Array(1);
for (let index = 0; index < 32 - subnetNum; index++) {
subnetMaskBinary[0] = (subnetMaskBinary[0] << 1) | 0b1;
}
subnetMaskBinary[0] ^= 0xffffffff
//setSubnetMaskBinaryString(subnetMaskBinary[0].toString(2))
setSubnetMask(subnetMaskBinary[0])
if(!peerNet) {
setFirstAddr((ipBinary & subnetMaskBinary[0])+1)
setLastAddr((ipBinary | (subnetMaskBinary[0] ^ 0xffffffff)) - 1)
}
if(peerNet) {
setFirstAddr((ipBinary & subnetMaskBinary[0]))
setLastAddr((ipBinary | (subnetMaskBinary[0] ^ 0xffffffff)))
}
}
}
}, [ipPart1, ipPart2, ipPart3, ipPart4, subnet, t])
return (
<main>
<Helmet>
<title>{t("tools.networking.ipv4subnetting.title")} | {t("site.title")}</title>
<meta name="keywords" content="subnetting, networking, ipv4, ip4, ip, internet protocol, subnet, subnetter, netmask, tool" />
</Helmet>
<div className={styles.layoutBox}>
<h1>{t("tools.networking.ipv4subnetting.title")}</h1>
<p><Trans i18nKey={"tools.networking.ipv4subnetting.description"} components={{}} /></p>
<div className={styles.inputGrid}>
<div>
<label htmlFor="ipv4-input">{t("tools.networking.common.ipv4addr")}</label>
<div className={styles.combiInput}>
<input ref={ipInput1} id="ipv4-input" placeholder={"192"} onChange={(e) => {setIPPart1(e.currentTarget.value); if((e.currentTarget.value.length >= 3 && e.currentTarget.value.length > ipPart1.length) || e.currentTarget.value[e.currentTarget.value.length - 1] === ".") ipInput2.current?.focus()}} value={ipPart1} />
<span>.</span>
<input ref={ipInput2} id="ipv4-input2" placeholder={"168"} onChange={(e) => {setIPPart2(e.currentTarget.value); if((e.currentTarget.value.length >= 3 && e.currentTarget.value.length > ipPart2.length) || e.currentTarget.value[e.currentTarget.value.length - 1] === ".") ipInput3.current?.focus()}} value={ipPart2} />
<span>.</span>
<input ref={ipInput3} id="ipv4-input3" placeholder={"178"} onChange={(e) => {setIPPart3(e.currentTarget.value); if((e.currentTarget.value.length >= 3 && e.currentTarget.value.length > ipPart3.length) || e.currentTarget.value[e.currentTarget.value.length - 1] === ".") ipInput4.current?.focus()}} value={ipPart3} />
<span>.</span>
<input ref={ipInput4} id="ipv4-input4" placeholder={"1"} onChange={(e) => {setIPPart4(e.currentTarget.value); if((e.currentTarget.value.length >= 3 && e.currentTarget.value.length > ipPart4.length) || e.currentTarget.value[e.currentTarget.value.length - 1] === "/" || e.currentTarget.value[e.currentTarget.value.length - 1] === ".") subnetInput.current?.focus()}} value={ipPart4} />
<span>/</span>
<input ref={subnetInput} id="subnet-input" placeholder={"24"} onChange={(e) => {setSubnet(e.currentTarget.value);}} value={subnet} />
</div>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.subnetMask")}</span>
<span className={styles.fakeField}>{subnetMask || subnetMask === 0 ? intToIPv4String(subnetMask) : "???"}</span>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.firstAddr")}</span>
<span className={styles.fakeField}>{firstAddr ? intToIPv4String(firstAddr) : "???"}</span>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.lastAddr")}</span>
<span className={styles.fakeField}>{lastAddr ? intToIPv4String(lastAddr) : "???"}</span>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.netAddr")}</span>
<span className={styles.fakeField}>{isPeerNet ? "n/a" : (firstAddr ? intToIPv4String(firstAddr - 1) : "???")}</span>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.broadcastAddr")}</span>
<span className={styles.fakeField}>{isPeerNet ? "n/a" : (lastAddr ? intToIPv4String(lastAddr + 1) : "???")}</span>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.ipv4addr")} ({t("tools.networking.common.binary")})</span>
<span className={styles.fakeField}>
{ipBinary || ipBinary === 0 ? ipBinary.toString(2).padStart(32, "0").split("").map((bit, index) => {
return <span style={{color: (index) >= (subnetNumber||32) ? "red" : undefined}} key={"bit"+index}>{bit}</span>
}) : "???"}
</span>
</div>
<div>
<span className={styles.fakeLabel}>{t("tools.networking.common.subnetMask")} ({t("tools.networking.common.binary")})</span>
<span className={styles.fakeField}>
{subnetMask || subnetMask === 0 ? subnetMask.toString(2).padStart(32, "0").split("").map((bit, index) => {
return <span key={"maskbit"+index}>{bit}</span>
}) : "???"}
</span>
</div>
</div>
</div>
</main>
)
}
export default IPv4SubnettingTool;