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[auth][web] Display shared codes (#3257)

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## Description

## Tests
This commit is contained in:
Neeraj Gupta 2024-09-13 17:17:33 +05:30 committed by GitHub
commit 6d316d25d3
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web/apps/auth/src/pages/share.tsx Normal file
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import { decryptMetadataJSON_New } from "@/base/crypto";
import React, { useEffect, useMemo, useState } from "react";
interface SharedCode {
startTime: number;
step: number;
codes: string;
}
interface CodeDisplay {
currentCode: string;
nextCode: string;
progress: number;
}
const Share: React.FC = () => {
const [sharedCode, setSharedCode] = useState<SharedCode | null>(null);
const [error, setError] = useState<string | null>(null);
const [timeStatus, setTimeStatus] = useState<number>(-10);
const [codeDisplay, setCodeDisplay] = useState<CodeDisplay>({
currentCode: "",
nextCode: "",
progress: 0,
});
const base64UrlToByteArray = (base64Url: string): Uint8Array => {
const base64 = base64Url.replace(/-/g, "+").replace(/_/g, "/");
return Uint8Array.from(atob(base64), (c) => c.charCodeAt(0));
};
const formatCode = (code: string): string =>
code.replace(/(.{3})/g, "$1 ").trim();
const getCodeDisplay = (
codes: string[],
startTime: number,
stepDuration: number,
): CodeDisplay => {
const currentTime = Date.now();
const elapsedTime = (currentTime - startTime) / 1000;
const index = Math.floor(elapsedTime / stepDuration);
const progress = ((elapsedTime % stepDuration) / stepDuration) * 100;
return {
currentCode: formatCode(codes[index] || ""),
nextCode: formatCode(codes[index + 1] || ""),
progress,
};
};
const getTimeStatus = (
currentTime: number,
startTime: number,
codesLength: number,
stepDuration: number,
): number => {
if (currentTime < startTime) return -1;
const totalDuration = codesLength * stepDuration * 1000;
if (currentTime > startTime + totalDuration) return 1;
return 0;
};
useEffect(() => {
const decryptCode = async () => {
const urlParams = new URLSearchParams(window.location.search);
const data = urlParams.get("data");
const header = urlParams.get("header");
const key = window.location.hash.substring(1);
if (!(data && header && key)) {
setError("Invalid URL. Please check the URL.");
return;
}
try {
const decryptedCode = (await decryptMetadataJSON_New(
{
encryptedData: base64UrlToByteArray(data),
decryptionHeader: base64UrlToByteArray(header),
},
base64UrlToByteArray(key),
)) as SharedCode;
setSharedCode(decryptedCode);
} catch (error) {
console.error("Failed to decrypt data:", error);
setError(
"Failed to get the data. Please check the URL and try again.",
);
}
};
decryptCode();
}, []);
useEffect(() => {
if (!sharedCode) return;
const updateCode = () => {
const currentTime = Date.now();
const codes = sharedCode.codes.split(",");
const status = getTimeStatus(
currentTime,
sharedCode.startTime,
codes.length,
sharedCode.step,
);
setTimeStatus(status);
if (status === 0) {
setCodeDisplay(
getCodeDisplay(
codes,
sharedCode.startTime,
sharedCode.step,
),
);
}
};
const interval = setInterval(updateCode, 100);
return () => clearInterval(interval);
}, [sharedCode]);
const progressBarColor = useMemo(
() => (100 - codeDisplay.progress > 40 ? "#8E2DE2" : "#FFC107"),
[codeDisplay.progress],
);
const Message: React.FC<{ text: string }> = ({ text }) => (
<p style={{ textAlign: "center", fontSize: "24px" }}>{text}</p>
);
return (
<div
style={{
display: "flex",
flexDirection: "column",
justifyContent: "space-between",
alignItems: "center",
height: "100vh",
backgroundColor: "#000000",
color: "#FFFFFF",
padding: "20px",
}}
>
<div style={{ fontSize: "24px", fontWeight: "bold" }}>ente</div>
<div style={{ width: "100%", maxWidth: "300px" }}>
{error && <p style={{ color: "red" }}>{error}</p>}
{timeStatus === -10 && !error && (
<Message text="Decrypting..." />
)}
{timeStatus === -1 && (
<Message text="Your or the person who shared the code has out of sync time." />
)}
{timeStatus === 1 && <Message text="The code has expired." />}
{timeStatus === 0 && (
<div
style={{
backgroundColor: "#1C1C1E",
borderRadius: "10px",
paddingBottom: "20px",
position: "relative",
}}
>
<div
style={{
width: "100%",
height: "4px",
backgroundColor: "#333333",
borderRadius: "2px",
}}
>
<div
style={{
width: `${100 - codeDisplay.progress}%`,
height: "100%",
backgroundColor: progressBarColor,
borderRadius: "2px",
}}
/>
</div>
<div
style={{
fontSize: "36px",
fontWeight: "bold",
margin: "10px",
}}
>
{codeDisplay.currentCode}
</div>
<div
style={{
position: "absolute",
right: "20px",
bottom: "20px",
fontSize: "12px",
opacity: 0.6,
}}
>
<p style={{ margin: 0 }}>
{codeDisplay.nextCode === ""
? "Last code"
: "next"}
</p>
{codeDisplay.nextCode !== "" && (
<p style={{ margin: 0 }}>
{codeDisplay.nextCode}
</p>
)}
</div>
</div>
)}
</div>
<a
href="https://ente.io/auth"
target="_blank"
rel="noopener noreferrer"
>
<button
style={{
backgroundColor: "#8E2DE2",
color: "#FFFFFF",
border: "none",
borderRadius: "25px",
padding: "15px 30px",
fontSize: "16px",
fontWeight: "bold",
cursor: "pointer",
width: "100%",
maxWidth: "300px",
}}
>
Try Ente Auth
</button>
</a>
</div>
);
};
export default Share;