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Always return passphrase without spaces.

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This commit is contained in:
Alan Evans 2020-02-04 08:10:58 -05:00
parent e551ea8bd9
commit 36a4225858
1 changed files with 13 additions and 4 deletions
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17
app/src/main/java/org/thoughtcrime/securesms/backup/BackupPassphrase.java
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@ -2,6 +2,7 @@ package org.thoughtcrime.securesms.backup;
import android.content.Context;
import android.os.Build;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
@ -12,26 +13,30 @@ import org.thoughtcrime.securesms.util.TextSecurePreferences;
/**
* Allows the getting and setting of the backup passphrase, which is stored encrypted on API >= 23.
*/
public class BackupPassphrase {
public final class BackupPassphrase {
private BackupPassphrase() {
}
private static final String TAG = BackupPassphrase.class.getSimpleName();
public static String get(@NonNull Context context) {
public static @Nullable String get(@NonNull Context context) {
String passphrase = TextSecurePreferences.getBackupPassphrase(context);
String encryptedPassphrase = TextSecurePreferences.getEncryptedBackupPassphrase(context);
if (Build.VERSION.SDK_INT < 23 || (passphrase == null && encryptedPassphrase == null)) {
return passphrase;
return stripSpaces(passphrase);
}
if (encryptedPassphrase == null) {
Log.i(TAG, "Migrating to encrypted passphrase.");
set(context, passphrase);
encryptedPassphrase = TextSecurePreferences.getEncryptedBackupPassphrase(context);
if (encryptedPassphrase == null) throw new AssertionError("Passphrase migration failed");
}
KeyStoreHelper.SealedData data = KeyStoreHelper.SealedData.fromString(encryptedPassphrase);
return new String(KeyStoreHelper.unseal(data));
return stripSpaces(new String(KeyStoreHelper.unseal(data)));
}
public static void set(@NonNull Context context, @Nullable String passphrase) {
@ -44,4 +49,8 @@ public class BackupPassphrase {
TextSecurePreferences.setBackupPassphrase(context, null);
}
}
private static String stripSpaces(@Nullable String passphrase) {
return passphrase != null ? passphrase.replace(" ", "") : null;
}
}