msb-public
/
FairEmail
mirror of https://github.com/M66B/FairEmail.git
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Code Issues Projects Releases Wiki Activity

Basic OpenPGP support

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Fixes #43
pull/72/head
M66B 6 years ago
parent d8298fb615
commit d4662d1b8a
10 changed files with 230 additions and 5 deletions
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5
app/build.gradle
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@ -67,6 +67,8 @@ dependencies {
// https://developer.android.com/topic/libraries/architecture/adding-components.html
// https://developer.android.com/jetpack/docs/release-notes
// https://github.com/open-keychain/openpgp-api
def androidx_version = "1.0.0-rc01"
def constraintlayout_version = "1.1.2"
def lifecycle_version = "2.0.0-rc01"
@ -76,6 +78,7 @@ dependencies {
def javamail_version = "1.6.0"
def jsoup_version = "1.11.3"
def jcharset_version = "2.0"
def openpgp_version = "12.0"
implementation "androidx.appcompat:appcompat:$androidx_version"
implementation "androidx.recyclerview:recyclerview:$androidx_version"
@ -99,4 +102,6 @@ dependencies {
implementation "org.jsoup:jsoup:$jsoup_version"
implementation "net.freeutils:jcharset:$jcharset_version"
implementation "org.sufficientlysecure:openpgp-api:$openpgp_version"
}

1
app/src/main/java/eu/faircode/email/ActivityCompose.java
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@ -36,6 +36,7 @@ public class ActivityCompose extends ActivityBase implements FragmentManager.OnB
static final int REQUEST_CONTACT_CC = 2;
static final int REQUEST_CONTACT_BCC = 3;
static final int REQUEST_ATTACHMENT = 4;
static final int REQUEST_OPENPGP = 5;
@Override
protected void onCreate(Bundle savedInstanceState) {

8
app/src/main/java/eu/faircode/email/ActivityView.java
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@ -91,6 +91,8 @@ public class ActivityView extends ActivityBase implements FragmentManager.OnBack
static final int REQUEST_VIEW = 1;
static final int REQUEST_UNSEEN = 2;
static final int REQUEST_OPENPGP = 3;
static final int REQUEST_ATTACHMENT_OFFSET = 10;
static final String ACTION_VIEW_MESSAGES = BuildConfig.APPLICATION_ID + ".VIEW_MESSAGES";
static final String ACTION_VIEW_MESSAGE = BuildConfig.APPLICATION_ID + ".VIEW_MESSAGE";
@ -692,7 +694,7 @@ public class ActivityView extends ActivityBase implements FragmentManager.OnBack
create.addCategory(Intent.CATEGORY_OPENABLE);
create.setType(intent.getStringExtra("type"));
create.putExtra(Intent.EXTRA_TITLE, intent.getStringExtra("name"));
startActivityForResult(create, (int) intent.getLongExtra("id", -1));
startActivityForResult(create, (int) intent.getLongExtra("id", -1) + REQUEST_ATTACHMENT_OFFSET);
} else if (ACTION_ACTIVATE_PRO.equals(intent.getAction())) {
try {
@ -724,9 +726,9 @@ public class ActivityView extends ActivityBase implements FragmentManager.OnBack
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
if (resultCode == Activity.RESULT_OK && requestCode > REQUEST_ATTACHMENT_OFFSET) {
Bundle args = new Bundle();
args.putLong("id", requestCode);
args.putLong("id", requestCode - REQUEST_ATTACHMENT_OFFSET);
args.putParcelable("uri", data.getData());
new SimpleTask<Void>() {
@Override

1
app/src/main/java/eu/faircode/email/FragmentAccount.java
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@ -453,6 +453,7 @@ public class FragmentAccount extends FragmentEx {
account.password = password;
account.synchronize = synchronize;
account.primary = (account.synchronize && primary);
account.store_sent = false;
account.poll_interval = Integer.parseInt(poll_interval);
if (!synchronize)

105
app/src/main/java/eu/faircode/email/FragmentCompose.java
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@ -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) {

102
app/src/main/java/eu/faircode/email/FragmentMessage.java
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@ -19,6 +19,7 @@ package eu.faircode.email;
Copyright 2018 by Marcel Bokhorst (M66B)
*/
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
@ -55,8 +56,13 @@ import android.widget.Toast;
import com.google.android.material.bottomnavigation.BottomNavigationView;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import org.openintents.openpgp.OpenPgpError;
import org.openintents.openpgp.util.OpenPgpApi;
import org.openintents.openpgp.util.OpenPgpServiceConnection;
import org.xml.sax.XMLReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
@ -73,6 +79,8 @@ import java.util.Date;
import java.util.List;
import java.util.Locale;
import javax.mail.internet.InternetAddress;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
@ -86,6 +94,8 @@ import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import static android.app.Activity.RESULT_OK;
public class FragmentMessage extends FragmentEx {
private ViewGroup view;
private TextView tvFrom;
@ -116,11 +126,30 @@ public class FragmentMessage extends FragmentEx {
private boolean free = false;
private AdapterAttachment adapter;
private String decrypted = null;
private OpenPgpServiceConnection openPgpConnection = null;
private boolean debug;
private DateFormat df = SimpleDateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
private static final long CACHE_IMAGE_DURATION = 24 * 3600 * 1000L;
@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) {
@ -611,6 +640,7 @@ public class FragmentMessage extends FragmentEx {
menu.findItem(R.id.menu_seen).setVisible(!free && message != null && !inOutbox);
menu.findItem(R.id.menu_forward).setVisible(!free && message != null && !inOutbox);
menu.findItem(R.id.menu_reply_all).setVisible(!free && message != null && message.cc != null && !inOutbox);
menu.findItem(R.id.menu_decrypt).setVisible(decrypted == null);
if (message != null) {
MenuItem menuSeen = menu.findItem(R.id.menu_seen);
@ -639,6 +669,9 @@ public class FragmentMessage extends FragmentEx {
case R.id.menu_reply_all:
onMenuReplyAll(message.id);
return true;
case R.id.menu_decrypt:
onMenuDecrypt(message);
return true;
default:
return super.onOptionsItemSelected(item);
}
@ -719,6 +752,75 @@ public class FragmentMessage extends FragmentEx {
.putExtra("reference", id));
}
private void onMenuDecrypt(EntityMessage message) {
Log.i(Helper.TAG, "On decrypt");
try {
if (openPgpConnection == null)
throw new IllegalArgumentException();
if (!openPgpConnection.isBound())
throw new IllegalArgumentException("OpenPgp not available");
InternetAddress to = (InternetAddress) message.to[0];
Intent data = new Intent();
data.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY);
data.putExtra(OpenPgpApi.EXTRA_USER_IDS, new String[]{to.getAddress()});
String encrypted = message.read(getContext());
final InputStream is = new ByteArrayInputStream(encrypted.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, "Decrypted");
FragmentMessage.this.decrypted = os.toString("UTF-8");
getActivity().invalidateOptionsMenu();
tvBody.setText(decrypted);
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(),
ActivityView.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 == ActivityView.REQUEST_OPENPGP && message != null) {
Log.i(Helper.TAG, "User interacted");
onMenuDecrypt(message);
}
}
}
private void onActionSpam(final long id) {
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder

5
app/src/main/res/menu/menu_compose.xml
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@ -13,4 +13,9 @@
android:icon="@drawable/baseline_people_24"
android:title="@string/title_show_addresses"
app:showAsAction="always" />
<item
android:id="@+id/menu_encrypt"
android:title="@string/title_encrypt"
app:showAsAction="never" />
</menu>

5
app/src/main/res/menu/menu_view.xml
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@ -31,4 +31,9 @@
android:icon="@drawable/baseline_reply_all_24"
android:title="@string/title_reply_all"
app:showAsAction="never" />
<item
android:id="@+id/menu_decrypt"
android:title="@string/title_decrypt"
app:showAsAction="never" />
</menu>

3
app/src/main/res/values/strings.xml
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@ -160,6 +160,9 @@
<string name="title_show_addresses">Show CC/BCC</string>
<string name="title_add_attachment">Add attachment</string>
<string name="title_encrypt">Encrypt</string>
<string name="title_decrypt">Decrypt</string>
<string name="title_from_missing">Sender missing</string>
<string name="title_to_missing">Recipient missing</string>
<string name="title_attachments_missing">Attachments still loading</string>

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