remove unnecessary zbar native libraries

src/main/java/com/sparrowwallet/sparrow/io/ZBar.java

@@ -4,7 +4,6 @@ import io.github.doblon8.jzbar.Config;
 import io.github.doblon8.jzbar.Image;
 import io.github.doblon8.jzbar.ImageScanner;
 import io.github.doblon8.jzbar.SymbolType;
-import com.sparrowwallet.sparrow.net.NativeUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -15,18 +14,8 @@ import java.awt.image.DataBufferByte;
 public class ZBar {
     private static final Logger log = LoggerFactory.getLogger(ZBar.class);
 
-    private final static boolean enabled;
-
-    static { // static initializer
-        if(com.sparrowwallet.sparrow.io.Config.get().isUseZbar()) {
-            enabled = loadLibrary();
-        } else {
-            enabled = false;
-        }
-    }
-
     public static boolean isEnabled() {
-        return enabled;
+        return com.sparrowwallet.sparrow.io.Config.get().isUseZbar();
     }
 
     public static Scan scan(BufferedImage bufferedImage) {
@@ -93,31 +82,6 @@ public class ZBar {
         return outputData;
     }
 
-    private static boolean loadLibrary() {
-        try {
-            String osName = System.getProperty("os.name");
-            String osArch = System.getProperty("os.arch");
-            if(osName.startsWith("Mac") && osArch.equals("aarch64")) {
-                NativeUtils.loadLibraryFromJar("/native/osx/aarch64/libzbar.dylib");
-            } else if(osName.startsWith("Mac")) {
-                NativeUtils.loadLibraryFromJar("/native/osx/x64/libzbar.dylib");
-            } else if(osName.startsWith("Windows")) {
-                NativeUtils.loadLibraryFromJar("/native/windows/x64/iconv-2.dll");
-                NativeUtils.loadLibraryFromJar("/native/windows/x64/zbar.dll");
-            } else if(osArch.equals("aarch64")) {
-                NativeUtils.loadLibraryFromJar("/native/linux/aarch64/libzbar.so");
-            } else {
-                NativeUtils.loadLibraryFromJar("/native/linux/x64/libzbar.so");
-            }
-
-            return true;
-        } catch(Exception e) {
-            log.warn("Could not load ZBar native libraries, disabling. " + e.getMessage());
-        }
-
-        return false;
-    }
-
     private static byte[] getRawBytes(String str) {
         char[] chars = str.toCharArray();
         byte[] bytes = new byte[chars.length];

src/main/java/com/sparrowwallet/sparrow/net/NativeUtils.java

@@ -1,11 +1,17 @@
 package com.sparrowwallet.sparrow.net;
 
+import com.sparrowwallet.drongo.OsType;
+
 import java.io.*;
 import java.nio.file.FileSystemNotFoundException;
 import java.nio.file.FileSystems;
 import java.nio.file.Files;
 import java.nio.file.ProviderNotFoundException;
 import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.PosixFilePermission;
+import java.nio.file.attribute.PosixFilePermissions;
+import java.util.EnumSet;
+import java.util.Set;
 
 /**
  * A simple library class which helps with loading dynamic libraries stored in the
@@ -111,9 +117,33 @@ public class NativeUtils {
         String tempDir = System.getProperty("java.io.tmpdir");
         File generatedDir = new File(tempDir, prefix + System.nanoTime());
 
-        if (!generatedDir.mkdir())
+        if(!createOwnerOnlyDirectory(generatedDir)) {
             throw new IOException("Failed to create temp directory " + generatedDir.getName());
+        }
 
         return generatedDir;
     }
+
+    public static boolean createOwnerOnlyDirectory(File directory) throws IOException {
+        try {
+            if(OsType.getCurrent() == OsType.WINDOWS) {
+                Files.createDirectories(directory.toPath());
+                return true;
+            }
+
+            Files.createDirectories(directory.toPath(), PosixFilePermissions.asFileAttribute(getDirectoryOwnerOnlyPosixFilePermissions()));
+            return true;
+        } catch(UnsupportedOperationException e) {
+            return directory.mkdirs();
+        }
+    }
+
+    private static Set<PosixFilePermission> getDirectoryOwnerOnlyPosixFilePermissions() {
+        Set<PosixFilePermission> ownerOnly = EnumSet.noneOf(PosixFilePermission.class);
+        ownerOnly.add(PosixFilePermission.OWNER_READ);
+        ownerOnly.add(PosixFilePermission.OWNER_WRITE);
+        ownerOnly.add(PosixFilePermission.OWNER_EXECUTE);
+
+        return ownerOnly;
+    }
 }