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com.eduworks.ec.crypto.EcAesCtrAsyncWorker Maven / Gradle / Ivy
package com.eduworks.ec.crypto;
import com.eduworks.ec.remote.EcRemote;
import forge.util;
import org.stjs.javascript.Array;
import org.stjs.javascript.Global;
import org.stjs.javascript.JSGlobal;
import org.stjs.javascript.JSObjectAdapter;
import org.stjs.javascript.functions.Callback1;
import org.stjs.javascript.worker.ErrorEvent;
import org.stjs.javascript.worker.MessageEvent;
import org.stjs.javascript.worker.Worker;
import org.stjs.javascript.worker.WorkerGlobalScope;
import window.EcLevrCrypto;
/**
* Asynchronous implementation of {{#crossLink
* "EcAesCtr"}}EcAesCtr{{/crossLink}}. Uses web workers and assumes 8 workers.
*
* @author [email protected]
* @class EcAesCtrAsyncWorker
* @module com.eduworks.ec
*/
public class EcAesCtrAsyncWorker {
static int rotator;
static Array> w;
static Array> q1;
static Array> q2;
private static void initWorker() {
if (Global.window == null && (JSGlobal.typeof(WorkerGlobalScope.self).equals("undefined")) || EcLevrCrypto.Worker == JSGlobal.undefined || EcLevrCrypto.Worker == null) {
return;
}
if (!EcRemote.async) {
return;
}
if (w != null) {
return;
}
rotator = 0;
q1 = new Array<>();
q2 = new Array<>();
w = new Array<>();
for (int index = 0; index < 8; index++) {
createWorker(index);
}
}
private static void createWorker(final int index) {
q1.push(new Array());
q2.push(new Array());
Worker wkr;
if (JSObjectAdapter.$get(Global.window, "scriptPath") != null)
w.push(wkr = new Worker(JSObjectAdapter.$get(Global.window, "scriptPath") + "forgeAsync.js"));
else
w.push(wkr = new Worker("forgeAsync.js"));
wkr.onmessage = new Callback1>() {
@Override
public void $invoke(MessageEvent p1) {
Object o = p1.data;
Callback1 success = q1.$get(index).shift();
Callback1 failure = q2.$get(index).shift();
if (JSObjectAdapter.$get(o, "error") != null) {
if (failure != null)
failure.$invoke(JSObjectAdapter.$get(o, "error"));
} else if (success != null) {
success.$invoke(JSObjectAdapter.$get(o, "result"));
}
}
};
wkr.onerror = new Callback1() {
@Override
public void $invoke(ErrorEvent p1) {
Callback1 success = q1.$get(index).shift();
Callback1 failure = q2.$get(index).shift();
if (failure != null) {
failure.$invoke(p1.toString());
}
}
};
}
/**
* Asynchronous form of {{#crossLink
* "EcAesCtr/encrypt:method"}}EcAesCtr.encrypt{{/crossLink}}
*
* @param {string} plaintext Text to encrypt.
* @param {string} secret Secret to use to encrypt.
* @param {string} iv Initialization Vector to use to encrypt.
* @param {function(string)} success Success method, result is Base64
* encoded Ciphertext.
* @param {function(string)} failure Failure method, parameter is error
* message.
* @method encrypt
* @static
*/
public static void encrypt(String plaintext, String secret, String iv, Callback1 success, Callback1 failure) {
initWorker();
if (!EcRemote.async || w == null) {
success.$invoke(EcAesCtr.encrypt(plaintext, secret, iv));
} else {
int worker = rotator++;
rotator = rotator % 8;
Object o = new Object();
JSObjectAdapter.$put(o, "secret", secret);
JSObjectAdapter.$put(o, "iv", iv);
JSObjectAdapter.$put(o, "text", util.encodeUtf8(plaintext));
JSObjectAdapter.$put(o, "cmd", "encryptAesCtr");
q1.$get(worker).push(success);
q2.$get(worker).push(failure);
w.$get(worker).postMessage(o);
}
}
/**
* Asynchronous form of {{#crossLink
* "EcAesCtr/decrypt:method"}}EcAesCtr.decrypt{{/crossLink}}
*
* @param {string} ciphertext Text to decrypt.
* @param {string} secret Secret to use to decrypt.
* @param {string} iv Initialization Vector to use to decrypt.
* @param {function(string)} success Success method, result is Plaintext
* with no encoding.
* @param {function(string)} failure Failure method, parameter is error
* message.
* @method decrypt
* @static
*/
public static void decrypt(final String ciphertext, final String secret, final String iv, final Callback1 success, final Callback1 failure) {
if (EcCrypto.caching) {
Object cacheGet = null;
cacheGet = JSObjectAdapter.$get(EcCrypto.decryptionCache, secret + iv + ciphertext);
if (cacheGet != null) {
success.$invoke((String) cacheGet);
return;
}
}
initWorker();
if (!EcRemote.async || w == null) {
success.$invoke(EcAesCtr.decrypt(ciphertext, secret, iv));
} else {
int worker = rotator++;
rotator = rotator % 8;
Object o = new Object();
JSObjectAdapter.$put(o, "secret", secret);
JSObjectAdapter.$put(o, "iv", iv);
JSObjectAdapter.$put(o, "text", ciphertext);
JSObjectAdapter.$put(o, "cmd", "decryptAesCtr");
if (EcCrypto.caching) {
q1.$get(worker).push(new Callback1() {
@Override
public void $invoke(String p1) {
JSObjectAdapter.$put(EcCrypto.decryptionCache, secret + iv + ciphertext, util.decodeUtf8(p1));
success.$invoke(util.decodeUtf8(p1));
}
});
} else {
q1.$get(worker).push(new Callback1() {
@Override
public void $invoke(String p1) {
success.$invoke(util.decodeUtf8(p1));
}
});
}
q2.$get(worker).push(failure);
w.$get(worker).postMessage(o);
}
}
}
