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| const data = { | |
| // 已登入：使用者 line id | |
| // 未登入：會產 uuid（字元數要和 line id 統一字元數 33 個） | |
| userId: 'U3045e7519d146d551937a1a8532f0857', | |
| // 所有使用者 任務紀錄顏色比例 | |
| // R, G, B 加總為 1 | |
| // 沒有任務資料時，使用初始狀態 R: 1/3、G: 1/3、B: 1/3 | |
| all: { | |
| R: 0.33, | |
| G: 0.46, | |
| B: 0.21 | |
| }, | |
| // 使用者個人 任務紀錄顏色比例 | |
| // R, G, B 加總為 1 | |
| // 未登入，或沒有任務資料時，使用初始狀態 R: 1/3、G: 1/3、B: 1/3 | |
| user: { | |
| R: 0.08, | |
| G: 0.67, | |
| B: 0.25 | |
| }, | |
| // 當下在線人數 | |
| numberOfPeople: 449, | |
| // 當下時間戳（此項目取消） | |
| // timestamp: 1661872588004, | |
| // 第幾小時 | |
| // 0-11 | |
| hour: 0 | |
| } |
我找到一個可以用的encode / decode 程式：
const cipher = (salt) => {
const textToChars = (text) => text.split("").map((c) => c.charCodeAt(0));
const byteHex = (n) => ("0" + Number(n).toString(16)).substr(-2);
const applySaltToChar = (code) =>
textToChars(salt).reduce((a, b) => a ^ b, code);
return (text) =>
text
.split("")
.map(textToChars)
.map(applySaltToChar)
.map(byteHex)
.join("");
};
const decipher = (salt) => {
const textToChars = (text) => text.split("").map((c) => c.charCodeAt(0));
const applySaltToChar = (code) =>
textToChars(salt).reduce((a, b) => a ^ b, code);
return (encoded) =>
encoded
.match(/.{1,2}/g)
.map((hex) => parseInt(hex, 16))
.map(applySaltToChar)
.map((charCode) => String.fromCharCode(charCode))
.join("");
};
const myCipher = cipher("lanuitblanche");
const myDecipher = decipher("lanuitblanche");
const strData = JSON.stringify(data);
console.log(strData);
const encodedHash = myCipher(strData);
console.log("hash", encodedHash);
const decodedData = myDecipher(encodedHash);
console.log(decodedData);
console.log(JSON.parse(decodedData));
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0915_note
若尚無任何任務紀錄，RGB 會以平均值 1/3 呈現