ADD AN EXTREMELY BROKEN MUSIC

src/main/java/me/chayapak1/chomensbot_mabe/util/DownloadUtilities.java

@@ -0,0 +1,61 @@
+package me.chayapak1.chomensbot_mabe.util;
+
+import javax.net.ssl.KeyManager;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+import java.io.*;
+import java.net.URL;
+import java.net.URLConnection;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.security.cert.X509Certificate;
+
+public class DownloadUtilities {
+    private static class DefaultTrustManager implements X509TrustManager {
+        @Override
+        public void checkClientTrusted(X509Certificate[] arg0, String arg1) {}
+
+        @Override
+        public void checkServerTrusted(X509Certificate[] arg0, String arg1) {}
+
+        @Override
+        public X509Certificate[] getAcceptedIssuers() {
+            return null;
+        }
+    }
+
+    public static byte[] DownloadToByteArray(URL url, int maxSize) throws IOException, KeyManagementException, NoSuchAlgorithmException {
+        SSLContext ctx = SSLContext.getInstance("TLS");
+        ctx.init(new KeyManager[0], new TrustManager[] {new DefaultTrustManager()}, new SecureRandom());
+        SSLContext.setDefault(ctx);
+        URLConnection conn = url.openConnection();
+        conn.setConnectTimeout(5000);
+        conn.setReadTimeout(10000);
+        conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0");
+
+        try (BufferedInputStream downloadStream = new BufferedInputStream(conn.getInputStream())) {
+            ByteArrayOutputStream byteArrayStream = new ByteArrayOutputStream();
+            byte[] buf = new byte[1024];
+            int n;
+            int tot = 0;
+            while ((n = downloadStream.read(buf)) > 0) {
+                byteArrayStream.write(buf, 0, n);
+                tot += n;
+                if (tot > maxSize) {
+                    throw new IOException("File is too large");
+                }
+                if (Thread.interrupted()) {
+                    return null;
+                }
+            }
+            return byteArrayStream.toByteArray();
+        }
+        // Closing a ByteArrayInputStream has no effect, so I do not close it.
+    }
+
+    public static InputStream DownloadToInputStream(URL url, int maxSize) throws KeyManagementException, NoSuchAlgorithmException, IOException {
+        return new ByteArrayInputStream(DownloadToByteArray(url, maxSize));
+    }
+}