com.github.bloodshura.x.venus.library.crypto.DecryptFunction Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of venusscript Show documentation

A dynamic, easy, highly customizable scripting language.

There is a newer version: 2.0.0

/*
 * Copyright (c) 2013-2018, João Vitor Verona Biazibetti - All Rights Reserved
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see .
 *
 * https://www.github.com/BloodShura
 */

package com.github.bloodshura.x.venus.library.crypto;

import com.github.bloodshura.x.collection.view.XArrayView;
import com.github.bloodshura.x.collection.view.XView;
import com.github.bloodshura.x.cryptography.Decrypter;
import com.github.bloodshura.x.cryptography.exception.CryptoException;
import com.github.bloodshura.x.venus.exception.runtime.ScriptRuntimeException;
import com.github.bloodshura.x.venus.executor.Context;
import com.github.bloodshura.x.venus.function.Function;
import com.github.bloodshura.x.venus.function.FunctionCallDescriptor;
import com.github.bloodshura.x.venus.type.PrimitiveType;
import com.github.bloodshura.x.venus.type.Type;
import com.github.bloodshura.x.venus.value.BoolValue;
import com.github.bloodshura.x.venus.value.StringValue;
import com.github.bloodshura.x.venus.value.Value;
import com.github.bloodshura.x.venus.value.VariableRefValue;

import javax.annotation.Nonnull;

public class DecryptFunction implements Function {
	private final XView argumentTypes;
	private final Decrypter decrypter;
	private final String name;

	public DecryptFunction(String name, Decrypter decrypter) {
		this.argumentTypes = new XArrayView<>(PrimitiveType.STRING, PrimitiveType.VARIABLE_REFERENCE);
		this.decrypter = decrypter;
		this.name = name;
	}

	@Override
	public Value call(Context context, FunctionCallDescriptor descriptor) throws ScriptRuntimeException {
		StringValue value = (StringValue) descriptor.get(0);
		VariableRefValue reference = (VariableRefValue) descriptor.get(1);

		try {
			String result = getDecrypter().decryptToStr(value.value());

			context.setVar(reference.value(), new StringValue(result));

			return new BoolValue(true);
		}
		catch (CryptoException exception) {
			return new BoolValue(false);
		}
	}

	@Override
	public XView getArgumentTypes() {
		return argumentTypes;
	}

	public Decrypter getDecrypter() {
		return decrypter;
	}

	@Nonnull
	@Override
	public String getName() {
		return name;
	}

	@Override
	public boolean isVarArgs() {
		return false;
	}
}