rewrite PgpSignEncrypt data flow

- introduce high-level SignEncryptOperation for uri to uri signing/encryption
- use SignEncryptParcel for high-level operation parameters
- use PgpSignEncryptInput plus streams for low-level operation parameters
- get rid of all sign/encrypt logic in KeychainIntentService

10 files changed, 346 insertions, 131 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/CertifyOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/CertifyOperation.java
index 3b391814e..025f45f7f 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/CertifyOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/CertifyOperation.java
@@ -5,6 +5,10 @@ import android.content.Context;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.keyimport.HkpKeyserver;
 import org.sufficientlysecure.keychain.keyimport.Keyserver.AddKeyException;
+import org.sufficientlysecure.keychain.operations.results.CertifyResult;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
+import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
@@ -16,10 +20,6 @@ import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
-import org.sufficientlysecure.keychain.operations.results.CertifyResult;
-import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
-import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
-import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.Log;
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/EditKeyOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/EditKeyOperation.java
index 106c62688..7f14b08d9 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/EditKeyOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/EditKeyOperation.java
@@ -4,16 +4,16 @@ import android.content.Context;
 
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.EditKeyResult;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
 import org.sufficientlysecure.keychain.operations.results.PgpEditKeyResult;
+import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKeyRing;
 import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
-import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
-import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
-import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportExportOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportExportOperation.java
index 3f3e0a432..8f10377cd 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportExportOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportExportOperation.java
@@ -32,6 +32,10 @@ import org.sufficientlysecure.keychain.keyimport.Keyserver.AddKeyException;
 import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
 import org.sufficientlysecure.keychain.operations.results.ConsolidateResult;
 import org.sufficientlysecure.keychain.operations.results.ExportResult;
+import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
+import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.PgpHelper;
@@ -41,10 +45,6 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
-import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
-import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
-import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.FileHelper;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/PromoteKeyOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/PromoteKeyOperation.java
index f10d11684..783b32477 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/PromoteKeyOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/PromoteKeyOperation.java
@@ -3,10 +3,10 @@ package org.sufficientlysecure.keychain.operations;
 import android.content.Context;
 
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.operations.results.PromoteKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
 import org.sufficientlysecure.keychain.operations.results.PgpEditKeyResult;
+import org.sufficientlysecure.keychain.operations.results.PromoteKeyResult;
 import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.Progressable;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/SignEncryptOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/SignEncryptOperation.java
new file mode 100644
index 000000000..e98f6b150
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/SignEncryptOperation.java
@@ -0,0 +1,136 @@
+package org.sufficientlysecure.keychain.operations;
+
+import android.content.Context;
+import android.net.Uri;
+
+import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
+import org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult;
+import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
+import org.sufficientlysecure.keychain.pgp.PgpSignEncryptOperation;
+import org.sufficientlysecure.keychain.pgp.Progressable;
+import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.util.FileHelper;
+import org.sufficientlysecure.keychain.util.InputData;
+import org.sufficientlysecure.keychain.util.ProgressScaler;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/** This is a high-level operation, which encapsulates one or more sign/encrypt
+ * operations, using URIs or byte arrays as input and output.
+ *
+ * This operation is fail-fast: If any sign/encrypt sub-operation fails or returns
+ * a pending result, it will terminate.
+ *
+ */
+public class SignEncryptOperation extends BaseOperation {
+
+    public SignEncryptOperation(Context context, ProviderHelper providerHelper,
+                                Progressable progressable, AtomicBoolean cancelled) {
+        super(context, providerHelper, progressable, cancelled);
+    }
+
+    public SignEncryptResult execute(SignEncryptParcel input) {
+
+        OperationLog log = new OperationLog();
+        log.add(LogType.MSG_SE, 0);
+
+        ArrayDeque<Uri> inputUris = new ArrayDeque<>(input.getInputUris());
+        ArrayDeque<Uri> outputUris = new ArrayDeque<>(input.getOutputUris());
+        byte[] inputBytes = input.getBytes();
+        byte[] outputBytes = null;
+
+        ArrayList<PgpSignEncryptResult> results = new ArrayList<>();
+
+        do {
+
+            if (checkCancelled()) {
+                log.add(LogType.MSG_OPERATION_CANCELLED, 0);
+                return new SignEncryptResult(SignEncryptResult.RESULT_CANCELLED, log, results);
+            }
+
+            InputData inputData;
+            {
+                if (inputBytes != null) {
+                    log.add(LogType.MSG_SE_INPUT_BYTES, 1);
+                    InputStream is = new ByteArrayInputStream(inputBytes);
+                    inputData = new InputData(is, inputBytes.length);
+                    inputBytes = null;
+                } else {
+                    if (inputUris.isEmpty()) {
+                        log.add(LogType.MSG_SE_ERROR_NO_INPUT, 1);
+                        return new SignEncryptResult(SignEncryptResult.RESULT_ERROR, log, results);
+                    }
+
+                    log.add(LogType.MSG_SE_INPUT_URI, 1);
+                    Uri uri = inputUris.removeFirst();
+                    try {
+                        InputStream is = mContext.getContentResolver().openInputStream(uri);
+                        long fileSize = FileHelper.getFileSize(mContext, uri, 0);
+                        String filename = FileHelper.getFilename(mContext, uri);
+                        inputData = new InputData(is, fileSize, filename);
+                    } catch (FileNotFoundException e) {
+                        log.add(LogType.MSG_SE_ERROR_INPUT_URI_NOT_FOUND, 1);
+                        return new SignEncryptResult(SignEncryptResult.RESULT_ERROR, log, results);
+                    }
+                }
+            }
+
+            OutputStream outStream;
+            {
+                if (!outputUris.isEmpty()) {
+                    try {
+                        Uri outputUri = outputUris.removeFirst();
+                        outStream = mContext.getContentResolver().openOutputStream(outputUri);
+                    } catch (FileNotFoundException e) {
+                        log.add(LogType.MSG_SE_ERROR_OUTPUT_URI_NOT_FOUND, 1);
+                        return new SignEncryptResult(SignEncryptResult.RESULT_ERROR, log, results);
+                    }
+                } else {
+                    if (outputBytes != null) {
+                        log.add(LogType.MSG_SE_ERROR_TOO_MANY_INPUTS, 1);
+                        return new SignEncryptResult(SignEncryptResult.RESULT_ERROR, log, results);
+                    }
+                    outStream = new ByteArrayOutputStream();
+                }
+            }
+
+            PgpSignEncryptOperation op = new PgpSignEncryptOperation(mContext, mProviderHelper,
+                    new ProgressScaler(), mCancelled);
+            PgpSignEncryptResult result = op.execute(input, inputData, outStream);
+            results.add(result);
+            log.add(result, 2);
+
+            if (result.isPending()) {
+                return new SignEncryptResult(SignEncryptResult.RESULT_PENDING, log, results);
+            }
+
+            if (!result.success()) {
+                return new SignEncryptResult(SignEncryptResult.RESULT_ERROR, log, results);
+            }
+
+            if (outStream instanceof ByteArrayOutputStream) {
+                outputBytes = ((ByteArrayOutputStream) outStream).toByteArray();
+            }
+
+        } while (!inputUris.isEmpty());
+
+        if (!outputUris.isEmpty()) {
+            // Any output URIs left are indicative of a programming error
+            log.add(LogType.MSG_SE_WARN_OUTPUT_LEFT, 1);
+        }
+
+        log.add(LogType.MSG_SE_SUCCESS, 1);
+        return new SignEncryptResult(SignEncryptResult.RESULT_OK, log, results, outputBytes);
+
+    }
+
+}
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/DeleteResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/DeleteResult.java
index e69fb59f2..62197541a 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/DeleteResult.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/DeleteResult.java
@@ -21,8 +21,6 @@ package org.sufficientlysecure.keychain.operations.results;
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Parcel;
-import android.os.Parcelable;
-import android.view.View;
 
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.ui.LogDisplayActivity;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java
index af4fcb071..078eb7354 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java
@@ -20,15 +20,8 @@ package org.sufficientlysecure.keychain.operations.results;
 
 import android.app.Activity;
 import android.content.Intent;
-import android.graphics.Color;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.view.View;
-
-import com.nispok.snackbar.Snackbar;
-import com.nispok.snackbar.Snackbar.SnackbarDuration;
-import com.nispok.snackbar.SnackbarManager;
-import com.nispok.snackbar.listeners.ActionClickListener;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
@@ -593,28 +586,42 @@ public abstract class OperationResult implements Parcelable {
         MSG_DC_UNLOCKING (LogLevel.INFO, R.string.msg_dc_unlocking),
 
         // signencrypt
-        MSG_SE_ASYMMETRIC (LogLevel.INFO, R.string.msg_se_asymmetric),
-        MSG_SE_CLEARSIGN_ONLY (LogLevel.DEBUG, R.string.msg_se_clearsign_only),
-        MSG_SE_COMPRESSING (LogLevel.DEBUG, R.string.msg_se_compressing),
-        MSG_SE_ENCRYPTING (LogLevel.DEBUG, R.string.msg_se_encrypting),
-        MSG_SE_ERROR_BAD_PASSPHRASE (LogLevel.ERROR, R.string.msg_se_error_bad_passphrase),
-        MSG_SE_ERROR_IO (LogLevel.ERROR, R.string.msg_se_error_io),
-        MSG_SE_ERROR_SIGN_KEY(LogLevel.ERROR, R.string.msg_se_error_sign_key),
-        MSG_SE_ERROR_KEY_SIGN (LogLevel.ERROR, R.string.msg_se_error_key_sign),
-        MSG_SE_ERROR_NFC (LogLevel.ERROR, R.string.msg_se_error_nfc),
-        MSG_SE_ERROR_PGP (LogLevel.ERROR, R.string.msg_se_error_pgp),
-        MSG_SE_ERROR_SIG (LogLevel.ERROR, R.string.msg_se_error_sig),
-        MSG_SE_ERROR_UNLOCK (LogLevel.ERROR, R.string.msg_se_error_unlock),
-        MSG_SE_KEY_OK (LogLevel.OK, R.string.msg_se_key_ok),
-        MSG_SE_KEY_UNKNOWN (LogLevel.DEBUG, R.string.msg_se_key_unknown),
-        MSG_SE_KEY_WARN (LogLevel.WARN, R.string.msg_se_key_warn),
-        MSG_SE_OK (LogLevel.OK, R.string.msg_se_ok),
-        MSG_SE_PENDING_NFC (LogLevel.INFO, R.string.msg_se_pending_nfc),
-        MSG_SE_PENDING_PASSPHRASE (LogLevel.INFO, R.string.msg_se_pending_passphrase),
-        MSG_SE (LogLevel.DEBUG, R.string.msg_se),
-        MSG_SE_SIGNING (LogLevel.DEBUG, R.string.msg_se_signing),
-        MSG_SE_SIGCRYPTING (LogLevel.DEBUG, R.string.msg_se_sigcrypting),
-        MSG_SE_SYMMETRIC (LogLevel.INFO, R.string.msg_se_symmetric),
+        MSG_SE (LogLevel.START, R.string.msg_se),
+        MSG_SE_INPUT_BYTES (LogLevel.INFO, R.string.msg_se_input_bytes),
+        MSG_SE_INPUT_URI (LogLevel.INFO, R.string.msg_se_input_uri),
+        MSG_SE_ERROR_NO_INPUT (LogLevel.DEBUG, R.string.msg_se_error_no_input),
+        MSG_SE_ERROR_INPUT_URI_NOT_FOUND (LogLevel.ERROR, R.string.msg_se_error_input_uri_not_found),
+        MSG_SE_ERROR_OUTPUT_URI_NOT_FOUND (LogLevel.ERROR, R.string.msg_se_error_output_uri_not_found),
+        MSG_SE_ERROR_TOO_MANY_INPUTS (LogLevel.ERROR, R.string.msg_se_error_too_many_inputs),
+        MSG_SE_WARN_OUTPUT_LEFT (LogLevel.WARN, R.string.msg_se_warn_output_left),
+        MSG_SE_SUCCESS (LogLevel.OK, R.string.msg_se_success),
+
+        // pgpsignencrypt
+        MSG_PSE_ASYMMETRIC (LogLevel.INFO, R.string.msg_pse_asymmetric),
+        MSG_PSE_CLEARSIGN_ONLY (LogLevel.DEBUG, R.string.msg_pse_clearsign_only),
+        MSG_PSE_COMPRESSING (LogLevel.DEBUG, R.string.msg_pse_compressing),
+        MSG_PSE_ENCRYPTING (LogLevel.DEBUG, R.string.msg_pse_encrypting),
+        MSG_PSE_ERROR_BAD_PASSPHRASE (LogLevel.ERROR, R.string.msg_pse_error_bad_passphrase),
+        MSG_PSE_ERROR_HASH_ALGO (LogLevel.ERROR, R.string.msg_pse_error_hash_algo),
+        MSG_PSE_ERROR_IO (LogLevel.ERROR, R.string.msg_pse_error_io),
+        MSG_PSE_ERROR_SIGN_KEY(LogLevel.ERROR, R.string.msg_pse_error_sign_key),
+        MSG_PSE_ERROR_KEY_SIGN (LogLevel.ERROR, R.string.msg_pse_error_key_sign),
+        MSG_PSE_ERROR_NFC (LogLevel.ERROR, R.string.msg_pse_error_nfc),
+        MSG_PSE_ERROR_PGP (LogLevel.ERROR, R.string.msg_pse_error_pgp),
+        MSG_PSE_ERROR_SIG (LogLevel.ERROR, R.string.msg_pse_error_sig),
+        MSG_PSE_ERROR_UNLOCK (LogLevel.ERROR, R.string.msg_pse_error_unlock),
+        MSG_PSE_KEY_OK (LogLevel.OK, R.string.msg_pse_key_ok),
+        MSG_PSE_KEY_UNKNOWN (LogLevel.DEBUG, R.string.msg_pse_key_unknown),
+        MSG_PSE_KEY_WARN (LogLevel.WARN, R.string.msg_pse_key_warn),
+        MSG_PSE_OK (LogLevel.OK, R.string.msg_pse_ok),
+        MSG_PSE_PENDING_NFC (LogLevel.INFO, R.string.msg_pse_pending_nfc),
+        MSG_PSE_PENDING_PASSPHRASE (LogLevel.INFO, R.string.msg_pse_pending_passphrase),
+        MSG_PSE (LogLevel.DEBUG, R.string.msg_pse),
+        MSG_PSE_SIGNING (LogLevel.DEBUG, R.string.msg_pse_signing),
+        MSG_PSE_SIGNING_CLEARTEXT (LogLevel.DEBUG, R.string.msg_pse_signing_cleartext),
+        MSG_PSE_SIGNING_DETACHED (LogLevel.DEBUG, R.string.msg_pse_signing_detached),
+        MSG_PSE_SIGCRYPTING (LogLevel.DEBUG, R.string.msg_pse_sigcrypting),
+        MSG_PSE_SYMMETRIC (LogLevel.INFO, R.string.msg_pse_symmetric),
 
         MSG_CRT_CERTIFYING (LogLevel.DEBUG, R.string.msg_crt_certifying),
         MSG_CRT_CERTIFY_ALL (LogLevel.DEBUG, R.string.msg_crt_certify_all),
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java
new file mode 100644
index 000000000..de2f64404
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
+ *
+ * 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.operations.results;
+
+import android.os.Parcel;
+
+import java.util.Date;
+
+public class PgpSignEncryptResult extends OperationResult {
+
+    // the fourth bit indicates a "data pending" result! (it's also a form of non-success)
+    public static final int RESULT_PENDING = RESULT_ERROR + 8;
+
+    // fifth to sixth bit in addition indicate specific type of pending
+    public static final int RESULT_PENDING_PASSPHRASE = RESULT_PENDING + 16;
+    public static final int RESULT_PENDING_NFC = RESULT_PENDING + 32;
+
+    long mKeyIdPassphraseNeeded;
+
+    long mNfcKeyId;
+    byte[] mNfcHash;
+    int mNfcAlgo;
+    Date mNfcTimestamp;
+    String mNfcPassphrase;
+    byte[] mDetachedSignature;
+
+    public long getKeyIdPassphraseNeeded() {
+        return mKeyIdPassphraseNeeded;
+    }
+
+    public void setKeyIdPassphraseNeeded(long keyIdPassphraseNeeded) {
+        mKeyIdPassphraseNeeded = keyIdPassphraseNeeded;
+    }
+
+    public void setNfcData(long nfcKeyId, byte[] nfcHash, int nfcAlgo, Date nfcTimestamp, String passphrase) {
+        mNfcKeyId = nfcKeyId;
+        mNfcHash = nfcHash;
+        mNfcAlgo = nfcAlgo;
+        mNfcTimestamp = nfcTimestamp;
+        mNfcPassphrase = passphrase;
+    }
+
+    public void setDetachedSignature(byte[] detachedSignature) {
+        mDetachedSignature = detachedSignature;
+    }
+
+    public long getNfcKeyId() {
+        return mNfcKeyId;
+    }
+
+    public byte[] getNfcHash() {
+        return mNfcHash;
+    }
+
+    public int getNfcAlgo() {
+        return mNfcAlgo;
+    }
+
+    public Date getNfcTimestamp() {
+        return mNfcTimestamp;
+    }
+
+    public String getNfcPassphrase() {
+        return mNfcPassphrase;
+    }
+
+    public byte[] getDetachedSignature() {
+        return mDetachedSignature;
+    }
+
+    public boolean isPending() {
+        return (mResult & RESULT_PENDING) == RESULT_PENDING;
+    }
+
+    public PgpSignEncryptResult(int result, OperationLog log) {
+        super(result, log);
+    }
+
+    public PgpSignEncryptResult(Parcel source) {
+        super(source);
+        mNfcHash = source.readInt() != 0 ? source.createByteArray() : null;
+        mNfcAlgo = source.readInt();
+        mNfcTimestamp = source.readInt() != 0 ? new Date(source.readLong()) : null;
+        mDetachedSignature = source.readInt() != 0 ? source.createByteArray() : null;
+    }
+
+    public int describeContents() {
+        return 0;
+    }
+
+    public void writeToParcel(Parcel dest, int flags) {
+        super.writeToParcel(dest, flags);
+        if (mNfcHash != null) {
+            dest.writeInt(1);
+            dest.writeByteArray(mNfcHash);
+        } else {
+            dest.writeInt(0);
+        }
+        dest.writeInt(mNfcAlgo);
+        if (mNfcTimestamp != null) {
+            dest.writeInt(1);
+            dest.writeLong(mNfcTimestamp.getTime());
+        } else {
+            dest.writeInt(0);
+        }
+        if (mDetachedSignature != null) {
+            dest.writeInt(1);
+            dest.writeByteArray(mDetachedSignature);
+        } else {
+            dest.writeInt(0);
+        }
+    }
+
+    public static final Creator<PgpSignEncryptResult> CREATOR = new Creator<PgpSignEncryptResult>() {
+        public PgpSignEncryptResult createFromParcel(final Parcel source) {
+            return new PgpSignEncryptResult(source);
+        }
+
+        public PgpSignEncryptResult[] newArray(final int size) {
+            return new PgpSignEncryptResult[size];
+        }
+    };
+
+}
\ No newline at end of file
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java
index c336f8502..ed0de65b0 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java
@@ -19,84 +19,42 @@ package org.sufficientlysecure.keychain.operations.results;
 
 import android.os.Parcel;
 
-import java.util.Date;
+import java.util.ArrayList;
 
 public class SignEncryptResult extends OperationResult {
 
-    // the fourth bit indicates a "data pending" result! (it's also a form of non-success)
-    public static final int RESULT_PENDING = RESULT_ERROR + 8;
-
-    // fifth to sixth bit in addition indicate specific type of pending
-    public static final int RESULT_PENDING_PASSPHRASE = RESULT_PENDING + 16;
-    public static final int RESULT_PENDING_NFC = RESULT_PENDING + 32;
-
-    long mKeyIdPassphraseNeeded;
-
-    long mNfcKeyId;
-    byte[] mNfcHash;
-    int mNfcAlgo;
-    Date mNfcTimestamp;
-    String mNfcPassphrase;
-    byte[] mDetachedSignature;
-
-    public long getKeyIdPassphraseNeeded() {
-        return mKeyIdPassphraseNeeded;
-    }
-
-    public void setKeyIdPassphraseNeeded(long keyIdPassphraseNeeded) {
-        mKeyIdPassphraseNeeded = keyIdPassphraseNeeded;
-    }
+    ArrayList<PgpSignEncryptResult> mResults;
+    byte[] mResultBytes;
 
-    public void setNfcData(long nfcKeyId, byte[] nfcHash, int nfcAlgo, Date nfcTimestamp, String passphrase) {
-        mNfcKeyId = nfcKeyId;
-        mNfcHash = nfcHash;
-        mNfcAlgo = nfcAlgo;
-        mNfcTimestamp = nfcTimestamp;
-        mNfcPassphrase = passphrase;
-    }
-
-    public void setDetachedSignature(byte[] detachedSignature) {
-        mDetachedSignature = detachedSignature;
-    }
-
-    public long getNfcKeyId() {
-        return mNfcKeyId;
-    }
-
-    public byte[] getNfcHash() {
-        return mNfcHash;
-    }
-
-    public int getNfcAlgo() {
-        return mNfcAlgo;
-    }
-
-    public Date getNfcTimestamp() {
-        return mNfcTimestamp;
-    }
-
-    public String getNfcPassphrase() {
-        return mNfcPassphrase;
-    }
+    public static final int RESULT_PENDING = RESULT_ERROR + 8;
 
-    public byte[] getDetachedSignature() {
-        return mDetachedSignature;
+    public PgpSignEncryptResult getPending() {
+        for (PgpSignEncryptResult sub : mResults) {
+            if (sub.isPending()) {
+                return sub;
+            }
+        }
+        return null;
     }
 
-    public boolean isPending() {
-        return (mResult & RESULT_PENDING) == RESULT_PENDING;
+    public SignEncryptResult(int result, OperationLog log, ArrayList<PgpSignEncryptResult> results) {
+        super(result, log);
+        mResults = results;
     }
 
-    public SignEncryptResult(int result, OperationLog log) {
+    public SignEncryptResult(int result, OperationLog log, ArrayList<PgpSignEncryptResult> results, byte[] resultBytes) {
         super(result, log);
+        mResults = results;
+        mResultBytes = resultBytes;
     }
 
     public SignEncryptResult(Parcel source) {
         super(source);
-        mNfcHash = source.readInt() != 0 ? source.createByteArray() : null;
-        mNfcAlgo = source.readInt();
-        mNfcTimestamp = source.readInt() != 0 ? new Date(source.readLong()) : null;
-        mDetachedSignature = source.readInt() != 0 ? source.createByteArray() : null;
+        mResults = source.createTypedArrayList(PgpSignEncryptResult.CREATOR);
+    }
+
+    public byte[] getResultBytes() {
+        return mResultBytes;
     }
 
     public int describeContents() {
@@ -105,25 +63,7 @@ public class SignEncryptResult extends OperationResult {
 
     public void writeToParcel(Parcel dest, int flags) {
         super.writeToParcel(dest, flags);
-        if (mNfcHash != null) {
-            dest.writeInt(1);
-            dest.writeByteArray(mNfcHash);
-        } else {
-            dest.writeInt(0);
-        }
-        dest.writeInt(mNfcAlgo);
-        if (mNfcTimestamp != null) {
-            dest.writeInt(1);
-            dest.writeLong(mNfcTimestamp.getTime());
-        } else {
-            dest.writeInt(0);
-        }
-        if (mDetachedSignature != null) {
-            dest.writeInt(1);
-            dest.writeByteArray(mDetachedSignature);
-        } else {
-            dest.writeInt(0);
-        }
+        dest.writeTypedList(mResults);
     }
 
     public static final Creator<SignEncryptResult> CREATOR = new Creator<SignEncryptResult>() {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SingletonResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SingletonResult.java
index b53eda5f6..04cb241f9 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SingletonResult.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SingletonResult.java
@@ -18,13 +18,8 @@
 
 package org.sufficientlysecure.keychain.operations.results;
 
-import android.app.Activity;
 import android.os.Parcel;
 
-import com.github.johnpersano.supertoasts.SuperCardToast;
-import com.github.johnpersano.supertoasts.SuperToast;
-import com.github.johnpersano.supertoasts.util.Style;
-
 /** This is a simple subclass meant to contain only a single log message. This log
  * message is also shown without a log button in the createNotify SuperToast. */
 public class SingletonResult extends OperationResult {