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Code Issues Packages Projects Releases Wiki Activity

Basic OpenPGP support

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Fixes #43
This commit is contained in:
M66B
2018-08-25 18:26:07 +00:00
parent d8298fb615
commit d4662d1b8a
10 changed files with 230 additions and 5 deletions
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105
app/src/main/java/eu/faircode/email/FragmentCompose.java
View File

@@ -20,6 +20,7 @@ package eu.faircode.email;
*/
import android.Manifest;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
@@ -54,7 +55,13 @@ import android.widget.Toast;
import com.google.android.material.bottomnavigation.BottomNavigationView;
import com.google.android.material.snackbar.Snackbar;
import org.openintents.openpgp.OpenPgpError;
import org.openintents.openpgp.util.OpenPgpApi;
import org.openintents.openpgp.util.OpenPgpServiceConnection;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
@@ -110,8 +117,27 @@ public class FragmentCompose extends FragmentEx {
private boolean addresses;
private boolean autosave = true;
private String encrypted = null;
private OpenPgpServiceConnection openPgpConnection = null;
private static final int ATTACHMENT_BUFFER_SIZE = 8192; // bytes
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
openPgpConnection = new OpenPgpServiceConnection(getContext(), "org.sufficientlysecure.keychain");
openPgpConnection.bindToService();
}
@Override
public void onDestroy() {
super.onDestroy();
if (openPgpConnection != null) {
openPgpConnection.unbindFromService();
openPgpConnection = null;
}
}
@Override
@Nullable
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
@@ -317,6 +343,7 @@ public class FragmentCompose extends FragmentEx {
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putLong("working", working);
outState.putString("encrypted", encrypted);
}
@Override
@@ -337,6 +364,8 @@ public class FragmentCompose extends FragmentEx {
args.putParcelableArrayList("attachments", getArguments().getParcelableArrayList("attachments"));
draftLoader.load(this, args);
} else {
encrypted = savedInstanceState.getString("encrypted");
Bundle args = new Bundle();
args.putString("action", "edit");
args.putLong("id", savedInstanceState.getLong("working"));
@@ -365,6 +394,7 @@ public class FragmentCompose extends FragmentEx {
menu.findItem(R.id.menu_attachment).setVisible(!free && working >= 0);
menu.findItem(R.id.menu_attachment).setEnabled(etBody.isEnabled());
menu.findItem(R.id.menu_addresses).setVisible(!free && working >= 0);
menu.findItem(R.id.menu_encrypt).setVisible(encrypted == null);
}
@Override
@@ -376,6 +406,9 @@ public class FragmentCompose extends FragmentEx {
case R.id.menu_addresses:
onMenuAddresses();
return true;
case R.id.menu_encrypt:
onMenuEncrypt();
return true;
default:
return super.onOptionsItemSelected(item);
}
@@ -392,12 +425,77 @@ public class FragmentCompose extends FragmentEx {
grpAddresses.setVisibility(grpAddresses.getVisibility() == View.GONE ? View.VISIBLE : View.GONE);
}
private void onMenuEncrypt() {
Log.i(Helper.TAG, "On encrypt");
try {
if (openPgpConnection == null)
throw new IllegalArgumentException();
if (!openPgpConnection.isBound())
throw new IllegalArgumentException("OpenPgp not available");
EntityIdentity identity = (EntityIdentity) spFrom.getSelectedItem();
if (identity == null)
throw new IllegalArgumentException("No identity selected");
Intent data = new Intent();
data.setAction(OpenPgpApi.ACTION_ENCRYPT);
data.putExtra(OpenPgpApi.EXTRA_USER_IDS, new String[]{identity.email});
data.putExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
String plain = etBody.getText().toString();
final InputStream is = new ByteArrayInputStream(plain.getBytes("UTF-8"));
final ByteArrayOutputStream os = new ByteArrayOutputStream();
OpenPgpApi api = new OpenPgpApi(getContext(), openPgpConnection.getService());
api.executeApiAsync(data, is, os, new OpenPgpApi.IOpenPgpCallback() {
@Override
public void onReturn(Intent result) {
try {
int code = result.getIntExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
switch (code) {
case OpenPgpApi.RESULT_CODE_SUCCESS: {
Log.i(Helper.TAG, "Encrypted");
FragmentCompose.this.encrypted = os.toString("UTF-8");
getActivity().invalidateOptionsMenu();
etBody.setText(FragmentCompose.this.encrypted);
break;
}
case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: {
Log.i(Helper.TAG, "User interaction");
PendingIntent pi = result.getParcelableExtra(OpenPgpApi.RESULT_INTENT);
getActivity().startIntentSenderForResult(
pi.getIntentSender(),
ActivityCompose.REQUEST_OPENPGP,
null, 0, 0, 0);
break;
}
case OpenPgpApi.RESULT_CODE_ERROR: {
OpenPgpError error = result.getParcelableExtra(OpenPgpApi.RESULT_ERROR);
Log.e(Helper.TAG, error.getMessage());
Toast.makeText(getContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
}
} catch (Throwable ex) {
Log.e(Helper.TAG, ex + "\n" + Log.getStackTraceString(ex));
Toast.makeText(getContext(), ex.toString(), Toast.LENGTH_LONG).show();
}
}
});
} catch (Throwable ex) {
Log.e(Helper.TAG, ex + "\n" + Log.getStackTraceString(ex));
Toast.makeText(getContext(), ex.toString(), Toast.LENGTH_LONG).show();
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == ActivityCompose.REQUEST_ATTACHMENT) {
if (data != null)
handleAddAttachment(data);
} else if (requestCode == ActivityCompose.REQUEST_OPENPGP) {
Log.i(Helper.TAG, "User interacted");
onMenuEncrypt();
} else
handlePickContact(requestCode, data);
}
@@ -531,7 +629,6 @@ public class FragmentCompose extends FragmentEx {
if (attachment.type == null)
attachment.type = "application/octet-stream";
attachment.size = (s == null ? null : Integer.parseInt(s));
attachment.progress = 0;
@@ -903,7 +1000,11 @@ public class FragmentCompose extends FragmentEx {
draft.subject = subject;
draft.received = new Date().getTime();
String pbody = "<pre>" + body.replaceAll("\\r?\\n", "<br />") + "</pre>";
String pbody;
if (encrypted == null)
pbody = "<pre>" + body.replaceAll("\\r?\\n", "<br />") + "</pre>";
else
pbody = encrypted;
// Execute action
if (action == R.id.action_trash) {