Extract SignalAccount from Manager

src/main/java/org/asamk/signal/manager/BaseConfig.java

@@ -8,26 +8,25 @@ import org.whispersystems.signalservice.internal.configuration.SignalServiceUrl;
 
 public class BaseConfig {
 
-    private BaseConfig() {
-    }
-
     public final static String PROJECT_NAME = Manager.class.getPackage().getImplementationTitle();
     public final static String PROJECT_VERSION = Manager.class.getPackage().getImplementationVersion();
+
     final static String USER_AGENT = PROJECT_NAME == null ? null : PROJECT_NAME + " " + PROJECT_VERSION;
+    final static String UNIDENTIFIED_SENDER_TRUST_ROOT = "BXu6QIKVz5MA8gstzfOgRQGqyLqOwNKHL6INkv3IHWMF";
+    final static int PREKEY_MINIMUM_COUNT = 20;
+    final static int PREKEY_BATCH_SIZE = 100;
+    final static int MAX_ATTACHMENT_SIZE = 150 * 1024 * 1024;
 
     private final static String URL = "https://textsecure-service.whispersystems.org";
     private final static String CDN_URL = "https://cdn.signal.org";
-
     private final static TrustStore TRUST_STORE = new WhisperTrustStore();
+
     final static SignalServiceConfiguration serviceConfiguration = new SignalServiceConfiguration(
             new SignalServiceUrl[]{new SignalServiceUrl(URL, TRUST_STORE)},
             new SignalCdnUrl[]{new SignalCdnUrl(CDN_URL, TRUST_STORE)},
             new SignalContactDiscoveryUrl[0]
     );
 
-    final static String UNIDENTIFIED_SENDER_TRUST_ROOT = "BXu6QIKVz5MA8gstzfOgRQGqyLqOwNKHL6INkv3IHWMF";
-
-    final static int PREKEY_MINIMUM_COUNT = 20;
-    static final int PREKEY_BATCH_SIZE = 100;
-    static final int MAX_ATTACHMENT_SIZE = 150 * 1024 * 1024;
+    private BaseConfig() {
+    }
 }

src/main/java/org/asamk/signal/manager/KeyUtils.java

@@ -0,0 +1,47 @@
+package org.asamk.signal.manager;
+
+import org.whispersystems.signalservice.internal.util.Base64;
+
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+class KeyUtils {
+
+    private KeyUtils() {
+    }
+
+    static String createSignalingKey() {
+        return getSecret(52);
+    }
+
+    static byte[] createProfileKey() {
+        return getSecretBytes(32);
+    }
+
+    static String createPassword() {
+        return getSecret(18);
+    }
+
+    static byte[] createGroupId() {
+        return getSecretBytes(16);
+    }
+
+    private static String getSecret(int size) {
+        byte[] secret = getSecretBytes(size);
+        return Base64.encodeBytes(secret);
+    }
+
+    private static byte[] getSecretBytes(int size) {
+        byte[] secret = new byte[size];
+        getSecureRandom().nextBytes(secret);
+        return secret;
+    }
+
+    private static SecureRandom getSecureRandom() {
+        try {
+            return SecureRandom.getInstance("SHA1PRNG");
+        } catch (NoSuchAlgorithmException e) {
+            throw new AssertionError(e);
+        }
+    }
+}