Another android fix (#1575)

* Fix en_us hash reading on Android (again)

* Fix hash generation methods for Android

connector/src/main/java/org/geysermc/connector/utils/FileUtils.java

@@ -34,10 +34,7 @@ import org.reflections.Reflections;
 import org.reflections.serializers.XmlSerializer;
 import org.reflections.util.ConfigurationBuilder;
 
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
+import java.io.*;
 import java.net.URL;
 import java.nio.file.Files;
 import java.security.MessageDigest;
@@ -168,7 +165,7 @@ public class FileUtils {
         byte[] sha256;
 
         try {
-            sha256 = MessageDigest.getInstance("SHA-256").digest(Files.readAllBytes(file.toPath()));
+            sha256 = MessageDigest.getInstance("SHA-256").digest(readAllBytes(file));
         } catch (Exception e) {
             throw new RuntimeException("Could not calculate pack hash", e);
         }
@@ -186,7 +183,7 @@ public class FileUtils {
         byte[] sha1;
 
         try {
-            sha1 = MessageDigest.getInstance("SHA-1").digest(Files.readAllBytes(file.toPath()));
+            sha1 = MessageDigest.getInstance("SHA-1").digest(readAllBytes(file));
         } catch (Exception e) {
             throw new RuntimeException("Could not calculate pack hash", e);
         }
@@ -210,4 +207,22 @@ public class FileUtils {
 
         return reflections;
     }
+
+    /**
+     * An android compatible version of {@link Files#readAllBytes}
+     *
+     * @param file File to read bytes of
+     * @return The byte array of the file
+     */
+    public static byte[] readAllBytes(File file) {
+        int size = (int) file.length();
+        byte[] bytes = new byte[size];
+        try {
+            BufferedInputStream buf = new BufferedInputStream(new FileInputStream(file));
+            buf.read(bytes, 0, bytes.length);
+            buf.close();
+        } catch (IOException ignored) { }
+
+        return bytes;
+    }
 }

connector/src/main/java/org/geysermc/connector/utils/LocaleUtils.java

@@ -140,9 +140,10 @@ public class LocaleUtils {
 
             if (locale.equals("en_us")) {
                 try {
-                    Path hashFile = GeyserConnector.getInstance().getBootstrap().getConfigFolder().resolve("locales/en_us.hash");
-                    if (hashFile.toFile().exists()) {
-                        curHash = String.join("", Files.readAllLines(hashFile));
+                    File hashFile = GeyserConnector.getInstance().getBootstrap().getConfigFolder().resolve("locales/en_us.hash").toFile();
+                    if (hashFile.exists()) {
+                        BufferedReader br = new BufferedReader(new FileReader(hashFile));
+                        curHash = br.readLine().trim();
                     }
                 } catch (IOException ignored) { }
                 targetHash = clientJarInfo.getSha1();