moparisthebest
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open-keychain
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Code Issues Releases Wiki Activity

First version of automatic contact discovery. 

TODO:
- Configuration (much of it)
- Enabled by default?
- Which keys to import? Current state: All non-revoked and non-expired with matching userid
- Search for keys if already known? Current state: yes, may cause traffic (configuration: only when wifi?)
- Update interval: Currently Android handles it, might be good (causes automatic refresh on new contact and stuff like that) or bad (too many of refreshes)
This commit is contained in:
mar-v-in 2014-06-04 17:55:24 +02:00
parent cc2ef0c17c
commit dd959876f4
9 changed files with 358 additions and 0 deletions
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26
OpenKeychain/src/main/AndroidManifest.xml
View File

@ -53,6 +53,10 @@
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.NFC" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS"/>
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS"/>
<uses-permission android:name="android.permission.READ_SYNC_SETTINGS"/>
<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS"/>
<uses-permission android:name="android.permission.READ_CONTACTS" />
<!-- android:allowBackup="false": Don't allow backup over adb backup or other apps! -->
@ -435,6 +439,28 @@
</intent-filter>
</service>
<service android:name=".service.DummyAccountService">
<intent-filter>
<action android:name="android.accounts.AccountAuthenticator"/>
</intent-filter>
<meta-data
android:name="android.accounts.AccountAuthenticator"
android:resource="@xml/account_desc"/>
</service>
<service android:name=".service.ContactSyncAdapterService">
<intent-filter>
<action android:name="android.content.SyncAdapter"/>
</intent-filter>
<meta-data
android:name="android.content.SyncAdapter"
android:resource="@xml/sync_adapter_desc"/>
<meta-data
android:name="android.provider.CONTACTS_STRUCTURE"
android:resource="@xml/custom_pgp_contacts_structure"/>
</service>
</application>
</manifest>

13
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
View File

@ -17,6 +17,8 @@
package org.sufficientlysecure.keychain;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.Application;
import android.content.Context;
import android.graphics.PorterDuff;
@ -76,6 +78,17 @@ public class KeychainApplication extends Application {
brandGlowEffect(getApplicationContext(),
getApplicationContext().getResources().getColor(R.color.emphasis));
setupAccountAsNeeded();
}
private void setupAccountAsNeeded() {
AccountManager manager = AccountManager.get(this);
Account[] accounts = manager.getAccountsByType(getPackageName());
if (accounts == null || accounts.length == 0) {
Account dummy = new Account(getString(R.string.app_name), getPackageName());
manager.addAccountExplicitly(dummy, null, null);
}
}
static void brandGlowEffect(Context context, int brandColor) {

97
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/EmailKeyHelper.java Normal file
View File

@ -0,0 +1,97 @@
/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.helper;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Messenger;
import org.sufficientlysecure.keychain.keyimport.HkpKeyserver;
import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
import org.sufficientlysecure.keychain.keyimport.Keyserver;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
public class EmailKeyHelper {
public static void importContacts(Context context, Messenger messenger) {
importAll(context, messenger, ContactHelper.getContactMails(context));
}
public static void importAll(Context context, Messenger messenger, List<String> mails) {
Set<ImportKeysListEntry> keys = new HashSet<ImportKeysListEntry>();
for (String mail : mails) {
keys.addAll(getEmailKeys(context, mail));
}
importKeys(context, messenger, new ArrayList<ImportKeysListEntry>(keys));
}
public static List<ImportKeysListEntry> getEmailKeys(Context context, String mail) {
Set<ImportKeysListEntry> keys = new HashSet<ImportKeysListEntry>();
// Try _hkp._tcp SRV record first
String[] mailparts = mail.split("@");
if (mailparts.length == 2) {
HkpKeyserver hkp = HkpKeyserver.resolve(mailparts[1]);
if (hkp != null) {
keys.addAll(getEmailKeys(mail, hkp));
}
}
// Most users don't have the SRV record, so ask a default server as well
String[] servers = Preferences.getPreferences(context).getKeyServers();
if (servers != null && servers.length != 0) {
HkpKeyserver hkp = new HkpKeyserver(servers[0]);
keys.addAll(getEmailKeys(mail, hkp));
}
return new ArrayList<ImportKeysListEntry>(keys);
}
private static void importKeys(Context context, Messenger messenger, List<ImportKeysListEntry> keys) {
Intent importIntent = new Intent(context, KeychainIntentService.class);
importIntent.setAction(KeychainIntentService.ACTION_DOWNLOAD_AND_IMPORT_KEYS);
Bundle importData = new Bundle();
importData.putParcelableArrayList(KeychainIntentService.DOWNLOAD_KEY_LIST,
new ArrayList<ImportKeysListEntry>(keys));
importIntent.putExtra(KeychainIntentService.EXTRA_DATA, importData);
importIntent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
context.startService(importIntent);
}
public static List<ImportKeysListEntry> getEmailKeys(String mail, Keyserver keyServer) {
Set<ImportKeysListEntry> keys = new HashSet<ImportKeysListEntry>();
try {
for (ImportKeysListEntry key : keyServer.search(mail)) {
if (key.isRevoked() || key.isExpired()) continue;
for (String userId : key.getUserIds()) {
if (userId.toLowerCase().contains(mail.toLowerCase())) {
keys.add(key);
}
}
}
} catch (Keyserver.QueryFailedException ignored) {
} catch (Keyserver.QueryNeedsRepairException ignored) {
}
return new ArrayList<ImportKeysListEntry>(keys);
}
}

70
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/ContactSyncAdapterService.java Normal file
View File

@ -0,0 +1,70 @@
/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.service;
import android.accounts.Account;
import android.app.Service;
import android.content.AbstractThreadedSyncAdapter;
import android.content.ContentProviderClient;
import android.content.Intent;
import android.content.SyncResult;
import android.os.*;
import org.sufficientlysecure.keychain.helper.EmailKeyHelper;
import org.sufficientlysecure.keychain.util.Log;
public class ContactSyncAdapterService extends Service {
private class ContactSyncAdapter extends AbstractThreadedSyncAdapter {
public ContactSyncAdapter() {
super(ContactSyncAdapterService.this, true);
}
@Override
public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider,
final SyncResult syncResult) {
EmailKeyHelper.importContacts(getContext(), new Messenger(new Handler(Looper.getMainLooper(),
new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
Bundle data = msg.getData();
switch (msg.arg1) {
case KeychainIntentServiceHandler.MESSAGE_OKAY:
return true;
case KeychainIntentServiceHandler.MESSAGE_UPDATE_PROGRESS:
if (data.containsKey(KeychainIntentServiceHandler.DATA_PROGRESS) &&
data.containsKey(KeychainIntentServiceHandler.DATA_PROGRESS_MAX)) {
Log.d("Keychain/ContactSync/DownloadKeys", "Progress: " +
data.getInt(KeychainIntentServiceHandler.DATA_PROGRESS) + "/" +
data.getInt(KeychainIntentServiceHandler.DATA_PROGRESS_MAX));
return false;
}
default:
Log.d("Keychain/ContactSync/DownloadKeys", "Syncing... " + msg.toString());
return false;
}
}
})));
}
}
@Override
public IBinder onBind(Intent intent) {
return new ContactSyncAdapter().getSyncAdapterBinder();
}
}

131
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/DummyAccountService.java Normal file
View File

@ -0,0 +1,131 @@
/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.service;
import android.accounts.AbstractAccountAuthenticator;
import android.accounts.Account;
import android.accounts.AccountAuthenticatorResponse;
import android.accounts.NetworkErrorException;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.widget.Toast;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.util.Log;
/**
* This service actually does nothing, it's sole task is to show a Toast if the use tries to create an account.
*/
public class DummyAccountService extends Service {
private class Toaster {
private static final String TOAST_MESSAGE = "toast_message";
private Context context;
private Handler handler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
Toast.makeText(context, msg.getData().getString(TOAST_MESSAGE), Toast.LENGTH_LONG).show();
return true;
}
});
private Toaster(Context context) {
this.context = context;
}
public void toast(int resourceId) {
toast(context.getString(resourceId));
}
public void toast(String message) {
Message msg = new Message();
Bundle bundle = new Bundle();
bundle.putString(TOAST_MESSAGE, message);
msg.setData(bundle);
handler.sendMessage(msg);
}
}
private class Authenticator extends AbstractAccountAuthenticator {
public Authenticator() {
super(DummyAccountService.this);
}
@Override
public Bundle editProperties(AccountAuthenticatorResponse response, String accountType) {
Log.d("DummyAccountService", "editProperties");
return null;
}
@Override
public Bundle addAccount(AccountAuthenticatorResponse response, String accountType, String authTokenType,
String[] requiredFeatures, Bundle options) throws NetworkErrorException {
response.onResult(new Bundle());
toaster.toast(R.string.info_no_manual_account_creation);
Log.d("DummyAccountService", "addAccount");
return null;
}
@Override
public Bundle confirmCredentials(AccountAuthenticatorResponse response, Account account, Bundle options)
throws NetworkErrorException {
Log.d("DummyAccountService", "confirmCredentials");
return null;
}
@Override
public Bundle getAuthToken(AccountAuthenticatorResponse response, Account account, String authTokenType,
Bundle options) throws NetworkErrorException {
Log.d("DummyAccountService", "getAuthToken");
return null;
}
@Override
public String getAuthTokenLabel(String authTokenType) {
Log.d("DummyAccountService", "getAuthTokenLabel");
return null;
}
@Override
public Bundle updateCredentials(AccountAuthenticatorResponse response, Account account, String authTokenType,
Bundle options) throws NetworkErrorException {
Log.d("DummyAccountService", "updateCredentials");
return null;
}
@Override
public Bundle hasFeatures(AccountAuthenticatorResponse response, Account account, String[] features)
throws NetworkErrorException {
Log.d("DummyAccountService", "hasFeatures");
return null;
}
}
private Toaster toaster;
@Override
public IBinder onBind(Intent intent) {
toaster = new Toaster(this);
return new Authenticator().getIBinder();
}
}

2
OpenKeychain/src/main/res/values/strings.xml
View File

@ -518,5 +518,7 @@
<string name="unknown_algorithm">unknown</string>
<string name="can_sign_not">cannot sign</string>
<string name="error_no_encrypt_subkey">No encryption subkey available!</string>
<string name="info_no_manual_account_creation">Do not create OpenKeychain-Accounts manually.
For more information, see Help.</string>
</resources>

6
OpenKeychain/src/main/res/xml/account_desc.xml Normal file
View File

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<account-authenticator xmlns:android="http://schemas.android.com/apk/res/android"
android:accountType="org.sufficientlysecure.keychain"
android:icon="@drawable/icon"
android:label="@string/app_name"/>

7
OpenKeychain/src/main/res/xml/custom_pgp_contacts_structure.xml Normal file
View File

@ -0,0 +1,7 @@
<?xml version="1.0" encoding="utf-8"?>
<ContactsSource xmlns:android="http://schemas.android.com/apk/res/android">
<ContactsDataKind android:mimeType="vnd.android.cursor.item/vnd.org.sufficientlysecure.keychain.key"
android:icon="@drawable/key_small"
android:summaryColumn="data1"
android:detailColumn="data2"/>
</ContactsSource>

6
OpenKeychain/src/main/res/xml/sync_adapter_desc.xml Normal file
View File

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<sync-adapter xmlns:android="http://schemas.android.com/apk/res/android"
android:contentAuthority="com.android.contacts"
android:accountType="org.sufficientlysecure.keychain"
android:supportsUploading="false"
android:userVisible="true"/>