Split api libs into OpenKeychain specific and OpenPGP Provider lib
This commit is contained in:
Dominik Schürmann
@@ -0,0 +1,259 @@
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/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.openintents.openpgp.util;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.content.Intent;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.os.ParcelFileDescriptor;
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import android.util.Log;
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import org.openintents.openpgp.IOpenPgpService;
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import org.openintents.openpgp.OpenPgpError;
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import java.io.InputStream;
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import java.io.OutputStream;
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public class OpenPgpApi {
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public static final String TAG = "OpenPgp API";
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public static final int API_VERSION = 2;
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public static final String SERVICE_INTENT = "org.openintents.openpgp.IOpenPgpService";
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/**
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* General extras
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* --------------
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*
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* required extras:
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* int EXTRA_API_VERSION (always required)
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*
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* returned extras:
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* int RESULT_CODE (RESULT_CODE_ERROR, RESULT_CODE_SUCCESS or RESULT_CODE_USER_INTERACTION_REQUIRED)
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* OpenPgpError RESULT_ERROR (if RESULT_CODE == RESULT_CODE_ERROR)
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* PendingIntent RESULT_INTENT (if RESULT_CODE == RESULT_CODE_USER_INTERACTION_REQUIRED)
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*/
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/**
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* Sign only
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*
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* optional extras:
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* boolean EXTRA_REQUEST_ASCII_ARMOR (request ascii armor for ouput)
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* String EXTRA_PASSPHRASE (key passphrase)
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*/
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public static final String ACTION_SIGN = "org.openintents.openpgp.action.SIGN";
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/**
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* Encrypt
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*
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* required extras:
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* String[] EXTRA_USER_IDS (=emails of recipients, if more than one key has a user_id, a PendingIntent is returned via RESULT_INTENT)
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* or
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* long[] EXTRA_KEY_IDS
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*
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* optional extras:
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* boolean EXTRA_REQUEST_ASCII_ARMOR (request ascii armor for ouput)
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* String EXTRA_PASSPHRASE (key passphrase)
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*/
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public static final String ACTION_ENCRYPT = "org.openintents.openpgp.action.ENCRYPT";
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/**
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* Sign and encrypt
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*
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* required extras:
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* String[] EXTRA_USER_IDS (=emails of recipients, if more than one key has a user_id, a PendingIntent is returned via RESULT_INTENT)
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* or
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* long[] EXTRA_KEY_IDS
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*
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* optional extras:
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* boolean EXTRA_REQUEST_ASCII_ARMOR (request ascii armor for ouput)
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* String EXTRA_PASSPHRASE (key passphrase)
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*/
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public static final String ACTION_SIGN_AND_ENCRYPT = "org.openintents.openpgp.action.SIGN_AND_ENCRYPT";
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/**
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* Decrypts and verifies given input stream. This methods handles encrypted-only, signed-and-encrypted,
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* and also signed-only input.
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*
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* If OpenPgpSignatureResult.getStatus() == OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY
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* in addition a PendingIntent is returned via RESULT_INTENT to download missing keys.
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*
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* optional extras:
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* boolean EXTRA_REQUEST_ASCII_ARMOR (request ascii armor for ouput)
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*
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* returned extras:
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* OpenPgpSignatureResult RESULT_SIGNATURE
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*/
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public static final String ACTION_DECRYPT_VERIFY = "org.openintents.openpgp.action.DECRYPT_VERIFY";
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/**
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* Get key ids based on given user ids (=emails)
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*
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* required extras:
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* String[] EXTRA_USER_IDS
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*
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* returned extras:
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* long[] EXTRA_KEY_IDS
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*/
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public static final String ACTION_GET_KEY_IDS = "org.openintents.openpgp.action.GET_KEY_IDS";
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/**
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* This action returns RESULT_CODE_SUCCESS if the OpenPGP Provider already has the key
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* corresponding to the given key id in its database.
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*
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* It returns RESULT_CODE_USER_INTERACTION_REQUIRED if the Provider does not have the key.
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* The PendingIntent from RESULT_INTENT can be used to retrieve those from a keyserver.
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*
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* required extras:
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* long EXTRA_KEY_ID
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*/
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public static final String ACTION_GET_KEY = "org.openintents.openpgp.action.GET_KEY";
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/* Intent extras */
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public static final String EXTRA_API_VERSION = "api_version";
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// SIGN, ENCRYPT, SIGN_AND_ENCRYPT, DECRYPT_VERIFY
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// request ASCII Armor for output
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// OpenPGP Radix-64, 33 percent overhead compared to binary, see http://tools.ietf.org/html/rfc4880#page-53)
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public static final String EXTRA_REQUEST_ASCII_ARMOR = "ascii_armor";
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// ENCRYPT, SIGN_AND_ENCRYPT
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public static final String EXTRA_USER_IDS = "user_ids";
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public static final String EXTRA_KEY_IDS = "key_ids";
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// optional extras:
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public static final String EXTRA_PASSPHRASE = "passphrase";
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// GET_KEY
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public static final String EXTRA_KEY_ID = "key_id";
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/* Service Intent returns */
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public static final String RESULT_CODE = "result_code";
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// get actual error object from RESULT_ERROR
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public static final int RESULT_CODE_ERROR = 0;
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// success!
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public static final int RESULT_CODE_SUCCESS = 1;
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// get PendingIntent from RESULT_INTENT, start PendingIntent with startIntentSenderForResult,
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// and execute service method again in onActivityResult
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public static final int RESULT_CODE_USER_INTERACTION_REQUIRED = 2;
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public static final String RESULT_ERROR = "error";
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public static final String RESULT_INTENT = "intent";
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// DECRYPT_VERIFY
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public static final String RESULT_SIGNATURE = "signature";
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IOpenPgpService mService;
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Context mContext;
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public OpenPgpApi(Context context, IOpenPgpService service) {
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this.mContext = context;
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this.mService = service;
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}
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public interface IOpenPgpCallback {
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void onReturn(final Intent result);
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}
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private class OpenPgpAsyncTask extends AsyncTask<Void, Integer, Intent> {
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Intent data;
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InputStream is;
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OutputStream os;
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IOpenPgpCallback callback;
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private OpenPgpAsyncTask(Intent data, InputStream is, OutputStream os, IOpenPgpCallback callback) {
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this.data = data;
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this.is = is;
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this.os = os;
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this.callback = callback;
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}
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@Override
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protected Intent doInBackground(Void... unused) {
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return executeApi(data, is, os);
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}
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protected void onPostExecute(Intent result) {
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callback.onReturn(result);
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}
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}
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@TargetApi(Build.VERSION_CODES.HONEYCOMB)
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public void executeApiAsync(Intent data, InputStream is, OutputStream os, IOpenPgpCallback callback) {
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OpenPgpAsyncTask task = new OpenPgpAsyncTask(data, is, os, callback);
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// don't serialize async tasks!
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// http://commonsware.com/blog/2012/04/20/asynctask-threading-regression-confirmed.html
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
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task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void[]) null);
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} else {
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task.execute((Void[]) null);
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}
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}
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public Intent executeApi(Intent data, InputStream is, OutputStream os) {
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try {
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data.putExtra(EXTRA_API_VERSION, OpenPgpApi.API_VERSION);
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Intent result = null;
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if (ACTION_GET_KEY_IDS.equals(data.getAction())) {
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result = mService.execute(data, null, null);
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return result;
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} else {
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// pipe the input and output
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ParcelFileDescriptor input = ParcelFileDescriptorUtil.pipeFrom(is,
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new ParcelFileDescriptorUtil.IThreadListener() {
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@Override
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public void onThreadFinished(Thread thread) {
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//Log.d(OpenPgpApi.TAG, "Copy to service finished");
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}
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});
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ParcelFileDescriptor output = ParcelFileDescriptorUtil.pipeTo(os,
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new ParcelFileDescriptorUtil.IThreadListener() {
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@Override
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public void onThreadFinished(Thread thread) {
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//Log.d(OpenPgpApi.TAG, "Service finished writing!");
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}
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});
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// blocks until result is ready
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result = mService.execute(data, input, output);
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// close() is required to halt the TransferThread
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output.close();
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// set class loader to current context to allow unparcelling
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// of OpenPgpError and OpenPgpSignatureResult
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// http://stackoverflow.com/a/3806769
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result.setExtrasClassLoader(mContext.getClassLoader());
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return result;
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}
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} catch (Exception e) {
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Log.e(OpenPgpApi.TAG, "Exception", e);
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Intent result = new Intent();
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result.putExtra(RESULT_CODE, RESULT_CODE_ERROR);
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result.putExtra(RESULT_ERROR,
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new OpenPgpError(OpenPgpError.CLIENT_SIDE_ERROR, e.getMessage()));
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return result;
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}
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}
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}
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@@ -0,0 +1,257 @@
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/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.openintents.openpgp.util;
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import android.app.AlertDialog.Builder;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.pm.ResolveInfo;
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import android.content.res.TypedArray;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.preference.DialogPreference;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ArrayAdapter;
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import android.widget.ListAdapter;
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import android.widget.TextView;
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import org.openintents.openpgp.R;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Does not extend ListPreference, but is very similar to it!
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* http://grepcode.com/file_/repository.grepcode.com/java/ext/com.google.android/android/4.4_r1/android/preference/ListPreference.java/?v=source
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*/
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public class OpenPgpListPreference extends DialogPreference {
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private static final String OPENKEYCHAIN_PACKAGE = "org.sufficientlysecure.keychain";
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private static final String MARKET_INTENT_URI_BASE = "market://details?id=%s";
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private static final Intent MARKET_INTENT = new Intent(Intent.ACTION_VIEW, Uri.parse(
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String.format(MARKET_INTENT_URI_BASE, OPENKEYCHAIN_PACKAGE)));
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private ArrayList<OpenPgpProviderEntry> mLegacyList = new ArrayList<OpenPgpProviderEntry>();
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private ArrayList<OpenPgpProviderEntry> mList = new ArrayList<OpenPgpProviderEntry>();
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private String mSelectedPackage;
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public OpenPgpListPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public OpenPgpListPreference(Context context) {
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this(context, null);
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}
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/**
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* Public method to add new entries for legacy applications
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*
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* @param packageName
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* @param simpleName
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* @param icon
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*/
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public void addLegacyProvider(int position, String packageName, String simpleName, Drawable icon) {
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mLegacyList.add(position, new OpenPgpProviderEntry(packageName, simpleName, icon));
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}
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@Override
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protected void onPrepareDialogBuilder(Builder builder) {
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mList.clear();
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// add "none"-entry
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mList.add(0, new OpenPgpProviderEntry("",
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getContext().getString(R.string.openpgp_list_preference_none),
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getContext().getResources().getDrawable(R.drawable.ic_action_cancel_launchersize)));
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// add all additional (legacy) providers
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mList.addAll(mLegacyList);
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// search for OpenPGP providers...
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ArrayList<OpenPgpProviderEntry> providerList = new ArrayList<OpenPgpProviderEntry>();
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Intent intent = new Intent(OpenPgpApi.SERVICE_INTENT);
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List<ResolveInfo> resInfo = getContext().getPackageManager().queryIntentServices(intent, 0);
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if (!resInfo.isEmpty()) {
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for (ResolveInfo resolveInfo : resInfo) {
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if (resolveInfo.serviceInfo == null)
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continue;
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String packageName = resolveInfo.serviceInfo.packageName;
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String simpleName = String.valueOf(resolveInfo.serviceInfo.loadLabel(getContext()
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.getPackageManager()));
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Drawable icon = resolveInfo.serviceInfo.loadIcon(getContext().getPackageManager());
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providerList.add(new OpenPgpProviderEntry(packageName, simpleName, icon));
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}
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}
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if (providerList.isEmpty()) {
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// add install links if provider list is empty
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resInfo = getContext().getPackageManager().queryIntentActivities
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(MARKET_INTENT, 0);
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for (ResolveInfo resolveInfo : resInfo) {
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Intent marketIntent = new Intent(MARKET_INTENT);
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marketIntent.setPackage(resolveInfo.activityInfo.packageName);
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Drawable icon = resolveInfo.activityInfo.loadIcon(getContext().getPackageManager());
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String marketName = String.valueOf(resolveInfo.activityInfo.applicationInfo
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.loadLabel(getContext().getPackageManager()));
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String simpleName = String.format(getContext().getString(R.string
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.openpgp_install_openkeychain_via), marketName);
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mList.add(new OpenPgpProviderEntry(OPENKEYCHAIN_PACKAGE, simpleName,
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icon, marketIntent));
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}
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} else {
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// add provider
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mList.addAll(providerList);
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}
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// Init ArrayAdapter with OpenPGP Providers
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ListAdapter adapter = new ArrayAdapter<OpenPgpProviderEntry>(getContext(),
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android.R.layout.select_dialog_singlechoice, android.R.id.text1, mList) {
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public View getView(int position, View convertView, ViewGroup parent) {
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// User super class to create the View
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View v = super.getView(position, convertView, parent);
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TextView tv = (TextView) v.findViewById(android.R.id.text1);
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// Put the image on the TextView
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tv.setCompoundDrawablesWithIntrinsicBounds(mList.get(position).icon, null,
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null, null);
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// Add margin between image and text (support various screen densities)
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int dp10 = (int) (10 * getContext().getResources().getDisplayMetrics().density + 0.5f);
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tv.setCompoundDrawablePadding(dp10);
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return v;
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}
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};
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builder.setSingleChoiceItems(adapter, getIndexOfProviderList(getValue()),
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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OpenPgpProviderEntry entry = mList.get(which);
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if (entry.intent != null) {
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/*
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* Intents are called as activity
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*
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* Current approach is to assume the user installed the app.
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* If he does not, the selected package is not valid.
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*
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* However applications should always consider this could happen,
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* as the user might remove the currently used OpenPGP app.
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*/
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getContext().startActivity(entry.intent);
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}
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mSelectedPackage = entry.packageName;
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/*
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* Clicking on an item simulates the positive button click, and dismisses
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* the dialog.
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*/
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OpenPgpListPreference.this.onClick(dialog, DialogInterface.BUTTON_POSITIVE);
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dialog.dismiss();
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}
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});
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/*
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* The typical interaction for list-based dialogs is to have click-on-an-item dismiss the
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* dialog instead of the user having to press 'Ok'.
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*/
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builder.setPositiveButton(null, null);
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}
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@Override
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protected void onDialogClosed(boolean positiveResult) {
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super.onDialogClosed(positiveResult);
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if (positiveResult && (mSelectedPackage != null)) {
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if (callChangeListener(mSelectedPackage)) {
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setValue(mSelectedPackage);
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}
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}
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}
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private int getIndexOfProviderList(String packageName) {
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for (OpenPgpProviderEntry app : mList) {
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if (app.packageName.equals(packageName)) {
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return mList.indexOf(app);
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}
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}
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return -1;
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}
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public void setValue(String packageName) {
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mSelectedPackage = packageName;
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persistString(packageName);
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}
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public String getValue() {
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return mSelectedPackage;
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}
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public String getEntry() {
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return getEntryByValue(mSelectedPackage);
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}
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@Override
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protected Object onGetDefaultValue(TypedArray a, int index) {
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||||
return a.getString(index);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
|
||||
setValue(restoreValue ? getPersistedString(mSelectedPackage) : (String) defaultValue);
|
||||
}
|
||||
|
||||
public String getEntryByValue(String packageName) {
|
||||
for (OpenPgpProviderEntry app : mList) {
|
||||
if (app.packageName.equals(packageName)) {
|
||||
return app.simpleName;
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
private static class OpenPgpProviderEntry {
|
||||
private String packageName;
|
||||
private String simpleName;
|
||||
private Drawable icon;
|
||||
private Intent intent;
|
||||
|
||||
public OpenPgpProviderEntry(String packageName, String simpleName, Drawable icon) {
|
||||
this.packageName = packageName;
|
||||
this.simpleName = simpleName;
|
||||
this.icon = icon;
|
||||
}
|
||||
|
||||
public OpenPgpProviderEntry(String packageName, String simpleName, Drawable icon, Intent intent) {
|
||||
this(packageName, simpleName, icon);
|
||||
this.intent = intent;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return simpleName;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,88 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.openintents.openpgp.util;
|
||||
|
||||
import org.openintents.openpgp.IOpenPgpService;
|
||||
|
||||
import android.content.ComponentName;
|
||||
import android.content.Context;
|
||||
import android.content.Intent;
|
||||
import android.content.ServiceConnection;
|
||||
import android.os.IBinder;
|
||||
|
||||
public class OpenPgpServiceConnection {
|
||||
private Context mApplicationContext;
|
||||
|
||||
private boolean mBound;
|
||||
private IOpenPgpService mService;
|
||||
private String mProviderPackageName;
|
||||
|
||||
public OpenPgpServiceConnection(Context context, String providerPackageName) {
|
||||
this.mApplicationContext = context.getApplicationContext();
|
||||
this.mProviderPackageName = providerPackageName;
|
||||
}
|
||||
|
||||
public IOpenPgpService getService() {
|
||||
return mService;
|
||||
}
|
||||
|
||||
public boolean isBound() {
|
||||
return mBound;
|
||||
}
|
||||
|
||||
private ServiceConnection mServiceConnection = new ServiceConnection() {
|
||||
public void onServiceConnected(ComponentName name, IBinder service) {
|
||||
mService = IOpenPgpService.Stub.asInterface(service);
|
||||
mBound = true;
|
||||
}
|
||||
|
||||
public void onServiceDisconnected(ComponentName name) {
|
||||
mService = null;
|
||||
mBound = false;
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* If not already bound, bind to service!
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
public boolean bindToService() {
|
||||
// if not already bound...
|
||||
if (mService == null && !mBound) {
|
||||
try {
|
||||
Intent serviceIntent = new Intent();
|
||||
serviceIntent.setAction(IOpenPgpService.class.getName());
|
||||
// NOTE: setPackage is very important to restrict the intent to this provider only!
|
||||
serviceIntent.setPackage(mProviderPackageName);
|
||||
mApplicationContext.bindService(serviceIntent, mServiceConnection,
|
||||
Context.BIND_AUTO_CREATE);
|
||||
|
||||
return true;
|
||||
} catch (Exception e) {
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
public void unbindFromService() {
|
||||
mApplicationContext.unbindService(mServiceConnection);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,64 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.openintents.openpgp.util;
|
||||
|
||||
import java.util.List;
|
||||
import java.util.regex.Matcher;
|
||||
import java.util.regex.Pattern;
|
||||
|
||||
import android.content.Context;
|
||||
import android.content.Intent;
|
||||
import android.content.pm.ResolveInfo;
|
||||
|
||||
public class OpenPgpUtils {
|
||||
|
||||
public static final Pattern PGP_MESSAGE = Pattern.compile(
|
||||
".*?(-----BEGIN PGP MESSAGE-----.*?-----END PGP MESSAGE-----).*",
|
||||
Pattern.DOTALL);
|
||||
|
||||
public static final Pattern PGP_SIGNED_MESSAGE = Pattern.compile(
|
||||
".*?(-----BEGIN PGP SIGNED MESSAGE-----.*?-----BEGIN PGP SIGNATURE-----.*?-----END PGP SIGNATURE-----).*",
|
||||
Pattern.DOTALL);
|
||||
|
||||
public static final int PARSE_RESULT_NO_PGP = -1;
|
||||
public static final int PARSE_RESULT_MESSAGE = 0;
|
||||
public static final int PARSE_RESULT_SIGNED_MESSAGE = 1;
|
||||
|
||||
public static int parseMessage(String message) {
|
||||
Matcher matcherSigned = PGP_SIGNED_MESSAGE.matcher(message);
|
||||
Matcher matcherMessage = PGP_MESSAGE.matcher(message);
|
||||
|
||||
if (matcherMessage.matches()) {
|
||||
return PARSE_RESULT_MESSAGE;
|
||||
} else if (matcherSigned.matches()) {
|
||||
return PARSE_RESULT_SIGNED_MESSAGE;
|
||||
} else {
|
||||
return PARSE_RESULT_NO_PGP;
|
||||
}
|
||||
}
|
||||
|
||||
public static boolean isAvailable(Context context) {
|
||||
Intent intent = new Intent(OpenPgpApi.SERVICE_INTENT);
|
||||
List<ResolveInfo> resInfo = context.getPackageManager().queryIntentServices(intent, 0);
|
||||
if (!resInfo.isEmpty()) {
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,103 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
|
||||
* 2013 Flow (http://stackoverflow.com/questions/18212152/transfer-inputstream-to-another-service-across-process-boundaries-with-parcelf)
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.openintents.openpgp.util;
|
||||
|
||||
import android.os.ParcelFileDescriptor;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.io.OutputStream;
|
||||
|
||||
public class ParcelFileDescriptorUtil {
|
||||
|
||||
public interface IThreadListener {
|
||||
void onThreadFinished(final Thread thread);
|
||||
}
|
||||
|
||||
public static ParcelFileDescriptor pipeFrom(InputStream inputStream, IThreadListener listener)
|
||||
throws IOException {
|
||||
ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
|
||||
ParcelFileDescriptor readSide = pipe[0];
|
||||
ParcelFileDescriptor writeSide = pipe[1];
|
||||
|
||||
// start the transfer thread
|
||||
new TransferThread(inputStream, new ParcelFileDescriptor.AutoCloseOutputStream(writeSide),
|
||||
listener)
|
||||
.start();
|
||||
|
||||
return readSide;
|
||||
}
|
||||
|
||||
public static ParcelFileDescriptor pipeTo(OutputStream outputStream, IThreadListener listener)
|
||||
throws IOException {
|
||||
ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
|
||||
ParcelFileDescriptor readSide = pipe[0];
|
||||
ParcelFileDescriptor writeSide = pipe[1];
|
||||
|
||||
// start the transfer thread
|
||||
new TransferThread(new ParcelFileDescriptor.AutoCloseInputStream(readSide), outputStream,
|
||||
listener)
|
||||
.start();
|
||||
|
||||
return writeSide;
|
||||
}
|
||||
|
||||
static class TransferThread extends Thread {
|
||||
final InputStream mIn;
|
||||
final OutputStream mOut;
|
||||
final IThreadListener mListener;
|
||||
|
||||
TransferThread(InputStream in, OutputStream out, IThreadListener listener) {
|
||||
super("ParcelFileDescriptor Transfer Thread");
|
||||
mIn = in;
|
||||
mOut = out;
|
||||
mListener = listener;
|
||||
setDaemon(true);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
byte[] buf = new byte[1024];
|
||||
int len;
|
||||
|
||||
try {
|
||||
while ((len = mIn.read(buf)) > 0) {
|
||||
mOut.write(buf, 0, len);
|
||||
}
|
||||
mOut.flush(); // just to be safe
|
||||
} catch (IOException e) {
|
||||
//Log.e(OpenPgpApi.TAG, "TransferThread" + getId() + ": writing failed", e);
|
||||
} finally {
|
||||
try {
|
||||
mIn.close();
|
||||
} catch (IOException e) {
|
||||
//Log.e(OpenPgpApi.TAG, "TransferThread" + getId(), e);
|
||||
}
|
||||
try {
|
||||
mOut.close();
|
||||
} catch (IOException e) {
|
||||
//Log.e(OpenPgpApi.TAG, "TransferThread" + getId(), e);
|
||||
}
|
||||
}
|
||||
if (mListener != null) {
|
||||
//Log.d(OpenPgpApi.TAG, "TransferThread " + getId() + " finished!");
|
||||
mListener.onThreadFinished(this);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user