1 files changed, 198 insertions, 0 deletions
diff --git a/OpenPGP-Keychain-API/libraries/keychain-api-library/src/org/openintents/openpgp/util/OpenPgpApi.java b/OpenPGP-Keychain-API/libraries/keychain-api-library/src/org/openintents/openpgp/util/OpenPgpApi.java
new file mode 100644
index 000000000..f121c345d
--- /dev/null
+++ b/OpenPGP-Keychain-API/libraries/keychain-api-library/src/org/openintents/openpgp/util/OpenPgpApi.java
@@ -0,0 +1,198 @@
+/*
+ * 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 android.content.Context;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+import org.openintents.openpgp.IOpenPgpService;
+import org.openintents.openpgp.OpenPgpError;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class OpenPgpApi {
+
+    IOpenPgpService mService;
+    Context mContext;
+
+    private static final int OPERATION_SIGN = 0;
+    private static final int OPERATION_ENCRYPT = 1;
+    private static final int OPERATION_SIGN_ENCRYPT = 2;
+    private static final int OPERATION_DECRYPT_VERIFY = 3;
+    private static final int OPERATION_GET_KEY_IDS = 4;
+
+    public OpenPgpApi(Context context, IOpenPgpService service) {
+        this.mContext = context;
+        this.mService = service;
+    }
+
+    public Bundle sign(InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_SIGN, new Bundle(), is, os);
+    }
+
+    public Bundle sign(Bundle params, InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_SIGN, params, is, os);
+    }
+
+    public void sign(Bundle params, InputStream is, final OutputStream os, IOpenPgpCallback callback) {
+        executeApiAsync(OPERATION_SIGN, params, is, os, callback);
+    }
+
+    public Bundle encrypt(InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_ENCRYPT, new Bundle(), is, os);
+    }
+
+    public Bundle encrypt(Bundle params, InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_ENCRYPT, params, is, os);
+    }
+
+    public void encrypt(Bundle params, InputStream is, final OutputStream os, IOpenPgpCallback callback) {
+        executeApiAsync(OPERATION_ENCRYPT, params, is, os, callback);
+    }
+
+    public Bundle signAndEncrypt(InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_SIGN_ENCRYPT, new Bundle(), is, os);
+    }
+
+    public Bundle signAndEncrypt(Bundle params, InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_SIGN_ENCRYPT, params, is, os);
+    }
+
+    public void signAndEncrypt(Bundle params, InputStream is, final OutputStream os, IOpenPgpCallback callback) {
+        executeApiAsync(OPERATION_SIGN_ENCRYPT, params, is, os, callback);
+    }
+
+    public Bundle decryptAndVerify(InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_DECRYPT_VERIFY, new Bundle(), is, os);
+    }
+
+    public Bundle decryptAndVerify(Bundle params, InputStream is, final OutputStream os) {
+        return executeApi(OPERATION_DECRYPT_VERIFY, params, is, os);
+    }
+
+    public void decryptAndVerify(Bundle params, InputStream is, final OutputStream os, IOpenPgpCallback callback) {
+        executeApiAsync(OPERATION_DECRYPT_VERIFY, params, is, os, callback);
+    }
+
+    public Bundle getKeyIds(Bundle params) {
+        return executeApi(OPERATION_GET_KEY_IDS, params, null, null);
+    }
+
+    public interface IOpenPgpCallback {
+        void onReturn(final Bundle result);
+    }
+
+    private class OpenPgpAsyncTask extends AsyncTask<Void, Integer, Bundle> {
+        int operationId;
+        Bundle params;
+        InputStream is;
+        OutputStream os;
+        IOpenPgpCallback callback;
+
+        private OpenPgpAsyncTask(int operationId, Bundle params, InputStream is, OutputStream os, IOpenPgpCallback callback) {
+            this.operationId = operationId;
+            this.params = params;
+            this.is = is;
+            this.os = os;
+            this.callback = callback;
+        }
+
+        @Override
+        protected Bundle doInBackground(Void... unused) {
+            return executeApi(operationId, params, is, os);
+        }
+
+        protected void onPostExecute(Bundle result) {
+            callback.onReturn(result);
+        }
+
+    }
+
+    private void executeApiAsync(int operationId, Bundle params, InputStream is, OutputStream os, IOpenPgpCallback callback) {
+        new OpenPgpAsyncTask(operationId, params, is, os, callback).execute((Void[]) null);
+    }
+
+    private Bundle executeApi(int operationId, Bundle params, InputStream is, OutputStream os) {
+        try {
+            params.putInt(OpenPgpConstants.PARAMS_API_VERSION, OpenPgpConstants.API_VERSION);
+
+            Bundle result = null;
+
+            if (operationId == OPERATION_GET_KEY_IDS) {
+                result = mService.getKeyIds(params);
+                return result;
+            } else {
+                // send the input and output pfds
+                ParcelFileDescriptor input = ParcelFileDescriptorUtil.pipeFrom(is,
+                        new ParcelFileDescriptorUtil.IThreadListener() {
+
+                            @Override
+                            public void onThreadFinished(Thread thread) {
+                                Log.d(OpenPgpConstants.TAG, "Copy to service finished");
+                            }
+                        });
+                ParcelFileDescriptor output = ParcelFileDescriptorUtil.pipeTo(os,
+                        new ParcelFileDescriptorUtil.IThreadListener() {
+
+                            @Override
+                            public void onThreadFinished(Thread thread) {
+                                Log.d(OpenPgpConstants.TAG, "Service finished writing!");
+                            }
+                        });
+
+
+                // blocks until result is ready
+                switch (operationId) {
+                    case OPERATION_SIGN:
+                        result = mService.sign(params, input, output);
+                        break;
+                    case OPERATION_ENCRYPT:
+                        result = mService.encrypt(params, input, output);
+                        break;
+                    case OPERATION_SIGN_ENCRYPT:
+                        result = mService.signAndEncrypt(params, input, output);
+                        break;
+                    case OPERATION_DECRYPT_VERIFY:
+                        result = mService.decryptAndVerify(params, input, output);
+                        break;
+                }
+                // close() is required to halt the TransferThread
+                output.close();
+
+                // set class loader to current context to allow unparcelling
+                // of OpenPgpError and OpenPgpSignatureResult
+                // http://stackoverflow.com/a/3806769
+                result.setClassLoader(mContext.getClassLoader());
+
+                return result;
+            }
+        } catch (Exception e) {
+            Log.e(OpenPgpConstants.TAG, "Exception", e);
+            Bundle result = new Bundle();
+            result.putInt(OpenPgpConstants.RESULT_CODE, OpenPgpConstants.RESULT_CODE_ERROR);
+            result.putParcelable(OpenPgpConstants.RESULT_ERRORS,
+                    new OpenPgpError(OpenPgpError.CLIENT_SIDE_ERROR, e.getMessage()));
+            return result;
+        }
+    }
+
+
+}