mangayomi/lib/eval/javascript/utils.dart
2024-12-14 13:55:40 +02:00

134 lines
4 KiB
Dart

import 'package:flutter_qjs/flutter_qjs.dart';
import 'package:js_packer/js_packer.dart';
import 'package:mangayomi/eval/model/m_bridge.dart';
import 'package:mangayomi/utils/cryptoaes/js_unpacker.dart';
import 'package:mangayomi/utils/log/log.dart';
class JsUtils {
late JavascriptRuntime runtime;
JsUtils(this.runtime);
void init() {
runtime.onMessage('log', (dynamic args) {
Logger.add(LoggerLevel.warning, "${args[0]}");
return null;
});
runtime.onMessage('cryptoHandler', (dynamic args) {
return MBridge.cryptoHandler(args[0], args[1], args[2], args[3]);
});
runtime.onMessage('encryptAESCryptoJS', (dynamic args) {
return MBridge.encryptAESCryptoJS(args[0], args[1]);
});
runtime.onMessage('decryptAESCryptoJS', (dynamic args) {
return MBridge.decryptAESCryptoJS(args[0], args[1]);
});
runtime.onMessage('deobfuscateJsPassword', (dynamic args) {
return MBridge.deobfuscateJsPassword(args[0]);
});
runtime.onMessage('unpackJsAndCombine', (dynamic args) {
return JsUnpacker.unpackAndCombine(args[0]) ?? "";
});
runtime.onMessage('unpackJs', (dynamic args) {
return JSPacker(args[0]).unpack() ?? "";
});
runtime.evaluate('''
console.log = function (message) {
if (typeof message === "object") {
message = JSON.stringify(message);
}
sendMessage("log", JSON.stringify([message.toString()]));
};
console.warn = function (message) {
if (typeof message === "object") {
message = JSON.stringify(message);
}
sendMessage("log", JSON.stringify([message.toString()]));
};
console.error = function (message) {
if (typeof message === "object") {
message = JSON.stringify(message);
}
sendMessage("log", JSON.stringify([message.toString()]));
};
String.prototype.substringAfter = function(pattern) {
const startIndex = this.indexOf(pattern);
if (startIndex === -1) return this.substring(0);
const start = startIndex + pattern.length;
return this.substring(start);
}
String.prototype.substringAfterLast = function(pattern) {
return this.split(pattern).pop();
}
String.prototype.substringBefore = function(pattern) {
const endIndex = this.indexOf(pattern);
if (endIndex === -1) return this.substring(0);
return this.substring(0, endIndex);
}
String.prototype.substringBeforeLast = function(pattern) {
const endIndex = this.lastIndexOf(pattern);
if (endIndex === -1) return this.substring(0);
return this.substring(0, endIndex);
}
String.prototype.substringBetween = function(left, right) {
let startIndex = 0;
let index = this.indexOf(left, startIndex);
if (index === -1) return "";
let leftIndex = index + left.length;
let rightIndex = this.indexOf(right, leftIndex);
if (rightIndex === -1) return "";
startIndex = rightIndex + right.length;
return this.substring(leftIndex, rightIndex);
}
function cryptoHandler(text, iv, secretKeyString, encrypt) {
return sendMessage(
"cryptoHandler",
JSON.stringify([text, iv, secretKeyString, encrypt])
);
}
function encryptAESCryptoJS(plainText, passphrase) {
return sendMessage(
"encryptAESCryptoJS",
JSON.stringify([plainText, passphrase])
);
}
function decryptAESCryptoJS(encrypted, passphrase) {
return sendMessage(
"decryptAESCryptoJS",
JSON.stringify([encrypted, passphrase])
);
}
function deobfuscateJsPassword(inputString) {
return sendMessage(
"deobfuscateJsPassword",
JSON.stringify([inputString])
);
}
function unpackJsAndCombine(scriptBlock) {
return sendMessage(
"unpackJsAndCombine",
JSON.stringify([scriptBlock])
);
}
function unpackJs(packedJS) {
return sendMessage(
"unpackJs",
JSON.stringify([packedJS])
);
}
function parseDates(value, dateFormat, dateFormatLocale) {
return sendMessage(
"parseDates",
JSON.stringify([value, dateFormat, dateFormatLocale])
);
}
''');
}
}