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Code Issues Packages Projects Releases Wiki Activity

Auto select S/MIME encryption keys

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This commit is contained in:
M66B
2019-12-05 15:18:53 +01:00
parent 13ece09df0
commit 7d01466c6d
7 changed files with 142 additions and 173 deletions
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60
app/src/main/java/eu/faircode/email/Helper.java
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@@ -19,6 +19,7 @@ package eu.faircode.email;
Copyright 2018-2019 by Marcel Bokhorst (M66B)
*/
import android.app.Activity;
import android.app.Dialog;
import android.app.KeyguardManager;
import android.content.ActivityNotFoundException;
@@ -42,6 +43,9 @@ import android.os.LocaleList;
import android.os.Parcel;
import android.os.PowerManager;
import android.os.StatFs;
import android.security.KeyChain;
import android.security.KeyChainAliasCallback;
import android.security.KeyChainException;
import android.text.Spannable;
import android.text.Spanned;
import android.text.TextUtils;
@@ -974,6 +978,62 @@ public class Helper {
return "?";
}
static void selectKeyAlias(final Activity activity, final String email, final IKeyAlias intf) {
final Context context = activity.getApplicationContext();
final Handler handler = new Handler();
new Thread(new Runnable() {
@Override
public void run() {
if (email != null)
try {
if (KeyChain.getPrivateKey(context, email) != null) {
Log.i("Private key available alias=" + email);
handler.post(new Runnable() {
@Override
public void run() {
intf.onSelected(email);
}
});
return;
}
} catch (KeyChainException ex) {
Log.w(ex);
} catch (Throwable ex) {
Log.e(ex);
}
handler.post(new Runnable() {
@Override
public void run() {
KeyChain.choosePrivateKeyAlias(activity, new KeyChainAliasCallback() {
@Override
public void alias(@Nullable final String alias) {
Log.i("Selected key alias=" + alias);
handler.post(new Runnable() {
@Override
public void run() {
if (alias == null)
intf.onNothingSelected();
else
intf.onSelected(alias);
}
});
}
},
null, null, null, -1, email);
}
});
}
}).start();
}
interface IKeyAlias {
void onSelected(String alias);
void onNothingSelected();
}
// Miscellaneous
static <T> List<List<T>> chunkList(List<T> list, int size) {