Working Jdownloader

src/widgets/jdownloader/tools.js

@@ -0,0 +1,55 @@
+import crypto from 'crypto';
+
+export function sha256(data) {
+    return crypto
+        .createHash('sha256')
+        .update(data)
+        .digest();
+}
+
+export function uniqueRid() {
+    return Math.floor(Math.random() * 10e12);
+}
+
+export function validateRid(decryptedData, rid) {
+    if (decryptedData.rid !== rid) {
+        throw new Error('RequestID mismatch');
+    }
+    return decryptedData;
+
+}
+
+export function decrypt(data, ivKey) {
+    const iv = ivKey.slice(0, ivKey.length / 2);
+    const key = ivKey.slice(ivKey.length / 2, ivKey.length);
+    const cipher = crypto.createDecipheriv('aes-128-cbc', key, iv);
+    return Buffer.concat([
+        cipher.update(data, 'base64'),
+        cipher.final()
+    ]).toString();
+}
+
+export function createEncryptionToken(oldTokenBuff, updateToken) {
+    const updateTokenBuff = Buffer.from(updateToken, 'hex');
+    const mergedBuffer = Buffer.concat([oldTokenBuff, updateTokenBuff], oldTokenBuff.length + updateTokenBuff.length);
+    return sha256(mergedBuffer);
+}
+
+export function encrypt(data, ivKey) {
+    if (typeof data !== 'string') {
+        throw new Error('data no es un string');
+    }
+    if (!(ivKey instanceof Buffer)) {
+        throw new Error('ivKey no es un buffer');
+    }
+    if (ivKey.length !== 32) {
+        throw new Error('ivKey tiene que tener tamaño 32');
+    }
+    const stringIVKey = ivKey.toString('hex');
+    const stringIV = stringIVKey.substring(0, stringIVKey.length / 2);
+    const stringKey = stringIVKey.substring(stringIVKey.length / 2, stringIVKey.length);
+    const iv = Buffer.from(stringIV, 'hex');
+    const key = Buffer.from(stringKey, 'hex');
+    const cipher = crypto.createCipheriv('aes-128-cbc', key, iv);
+    return cipher.update(data, 'utf8', 'base64') + cipher.final('base64');
+}