move delete into operation class

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/DeleteOperation.java

@@ -0,0 +1,85 @@
+package org.sufficientlysecure.keychain.operations;
+
+import android.content.Context;
+
+import org.sufficientlysecure.keychain.operations.results.ConsolidateResult;
+import org.sufficientlysecure.keychain.operations.results.DeleteResult;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
+import org.sufficientlysecure.keychain.pgp.Progressable;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
+import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
+
+public class DeleteOperation extends BaseOperation {
+
+    public DeleteOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+        super(context, providerHelper, progressable);
+    }
+
+    public DeleteResult execute(long[] masterKeyIds, boolean isSecret) {
+
+        OperationLog log = new OperationLog();
+
+        if (masterKeyIds.length == 0) {
+            log.add(LogType.MSG_DEL_ERROR_EMPTY, 0);
+            return new DeleteResult(DeleteResult.RESULT_ERROR, log, 0, 0);
+        }
+
+        if (isSecret && masterKeyIds.length > 1) {
+            log.add(LogType.MSG_DEL_ERROR_MULTI_SECRET, 0);
+            return new DeleteResult(DeleteResult.RESULT_ERROR, log, 0, 0);
+        }
+
+        log.add(LogType.MSG_DEL, 0, masterKeyIds.length);
+
+        boolean cancelled = false;
+        int success = 0, fail = 0;
+        for (long masterKeyId : masterKeyIds) {
+            if (checkCancelled()) {
+                cancelled = true;
+                break;
+            }
+            int count = mProviderHelper.getContentResolver().delete(
+                    KeyRingData.buildPublicKeyRingUri(masterKeyId), null, null
+            );
+            if (count > 0) {
+                log.add(LogType.MSG_DEL_KEY, 1, KeyFormattingUtils.beautifyKeyId(masterKeyId));
+                success += 1;
+            } else {
+                log.add(LogType.MSG_DEL_KEY_FAIL, 1, KeyFormattingUtils.beautifyKeyId(masterKeyId));
+                fail += 1;
+            }
+        }
+
+        if (isSecret && success > 0) {
+            log.add(LogType.MSG_DEL_CONSOLIDATE, 1);
+            ConsolidateResult sub = mProviderHelper.consolidateDatabaseStep1(mProgressable);
+            log.add(sub, 2);
+        }
+
+        int result = DeleteResult.RESULT_OK;
+        if (success > 0) {
+            // make sure new data is synced into contacts
+            ContactSyncAdapterService.requestSync();
+
+            log.add(LogType.MSG_DEL_OK, 0, success);
+        }
+        if (fail > 0) {
+            log.add(LogType.MSG_DEL_FAIL, 0, fail);
+            result |= DeleteResult.RESULT_WARNINGS;
+            if (success == 0) {
+                result |= DeleteResult.RESULT_ERROR;
+            }
+        }
+        if (cancelled) {
+            log.add(LogType.MSG_OPERATION_CANCELLED, 0);
+            result |= DeleteResult.RESULT_CANCELLED;
+        }
+
+        return new DeleteResult(result, log, success, fail);
+
+    }
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/DeleteResult.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ * 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;
+
+public class DeleteResult extends OperationResult {
+
+    final public int mOk, mFail;
+
+    public DeleteResult(int result, OperationLog log, int ok, int fail) {
+        super(result, log);
+        mOk = ok;
+        mFail = fail;
+    }
+
+    /** Construct from a parcel - trivial because we have no extra data. */
+    public DeleteResult(Parcel source) {
+        super(source);
+        mOk = source.readInt();
+        mFail = source.readInt();
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        super.writeToParcel(dest, flags);
+        dest.writeInt(mOk);
+        dest.writeInt(mFail);
+    }
+
+    public static Creator<DeleteResult> CREATOR = new Creator<DeleteResult>() {
+        public DeleteResult createFromParcel(final Parcel source) {
+            return new DeleteResult(source);
+        }
+
+        public DeleteResult[] newArray(final int size) {
+            return new DeleteResult[size];
+        }
+    };
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java

@@ -593,7 +593,16 @@ public abstract class OperationResult implements Parcelable {
         MSG_GET_QUERY_TOO_SHORT(LogLevel.ERROR, R.string.msg_download_query_too_short),
         MSG_GET_TOO_MANY_RESPONSES(LogLevel.ERROR, R.string.msg_download_too_many_responses),
         MSG_GET_QUERY_TOO_SHORT_OR_TOO_MANY_RESPONSES(LogLevel.ERROR, R.string.msg_download_query_too_short_or_too_many_responses),
-        MSG_GET_QUERY_FAILED(LogLevel.ERROR, R.string.msg_download_query_failed)
+        MSG_GET_QUERY_FAILED(LogLevel.ERROR, R.string.msg_download_query_failed),
+
+        MSG_DEL_ERROR_EMPTY (LogLevel.ERROR, R.string.msg_del_error_empty),
+        MSG_DEL_ERROR_MULTI_SECRET (LogLevel.DEBUG, R.string.msg_del_error_multi_secret),
+        MSG_DEL (LogLevel.START, R.plurals.msg_del),
+        MSG_DEL_KEY (LogLevel.DEBUG, R.string.msg_del_key),
+        MSG_DEL_KEY_FAIL (LogLevel.WARN, R.string.msg_del_key_fail),
+        MSG_DEL_CONSOLIDATE (LogLevel.DEBUG, R.string.msg_del_consolidate),
+        MSG_DEL_OK (LogLevel.OK, R.plurals.msg_del_ok),
+        MSG_DEL_FAIL (LogLevel.WARN, R.plurals.msg_del_fail),
         ;
 
         public final int mMsgId;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java

@@ -29,7 +29,9 @@ import android.os.RemoteException;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.operations.DeleteOperation;
 import org.sufficientlysecure.keychain.operations.PgpCertifyOperation;
+import org.sufficientlysecure.keychain.operations.results.DeleteResult;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
 import org.sufficientlysecure.keychain.operations.results.CertifyResult;
@@ -362,40 +364,13 @@ public class KeychainIntentService extends IntentService implements Progressable
 
         } else if (ACTION_DELETE.equals(action)) {
 
-            try {
-
             long[] masterKeyIds = data.getLongArray(DELETE_KEY_LIST);
             boolean isSecret = data.getBoolean(DELETE_IS_SECRET);
 
-                if (masterKeyIds.length == 0) {
+            DeleteOperation op = new DeleteOperation(this, new ProviderHelper(this), this);
-                    throw new PgpGeneralException("List of keys to delete is empty");
+            DeleteResult result = op.execute(masterKeyIds, isSecret);
-                }
 
-                if (isSecret && masterKeyIds.length > 1) {
+            sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_OKAY, result);
-                    throw new PgpGeneralException("Secret keys can only be deleted individually!");
-                }
-
-                boolean success = false;
-                for (long masterKeyId : masterKeyIds) {
-                    int count = getContentResolver().delete(
-                            KeyRingData.buildPublicKeyRingUri(masterKeyId), null, null
-                    );
-                    success |= count > 0;
-                }
-
-                if (isSecret && success) {
-                    new ProviderHelper(this).consolidateDatabaseStep1(this);
-                }
-
-                if (success) {
-                    // make sure new data is synced into contacts
-                    ContactSyncAdapterService.requestSync();
-
-                    sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_OKAY);
-                }
-            } catch (Exception e) {
-                sendErrorToHandler(e);
-            }
 
         } else if (ACTION_DELETE_FILE_SECURELY.equals(action)) {
 

OpenKeychain/src/main/res/values/strings.xml

@@ -920,6 +920,24 @@
 
     <string name="msg_crt_upload_success">"Successfully uploaded key to server"</string>
 
+    <string name="msg_del_error_empty">"Nothing to delete!"</string>
+    <string name="msg_del_error_multi_secret">"Secret keys can only be deleted individually!"</string>
+    <plurals name="msg_del">
+        <item quantity="one">"Deleting one key"</item>
+        <item quantity="other">"Deleting %d keys"</item>
+    </plurals>
+    <string name="msg_del_key">"Deleting key %s"</string>
+    <string name="msg_del_key_fail">"Failed deleting key %s"</string>
+    <string name="msg_del_consolidate">"Consolidating database after deletion of secret key"</string>
+    <plurals name="msg_del_ok">
+        <item quantity="one">"Successfully deleted key"</item>
+        <item quantity="other">"Successfully deleted %d keys"</item>
+    </plurals>
+    <plurals name="msg_del_fail">
+        <item quantity="one">"Failed to delete one key"</item>
+        <item quantity="other">"Failed to delete %d keys"</item>
+    </plurals>
+
     <string name="msg_acc_saved">"Account saved"</string>
 
     <string name="msg_download_success">"Downloaded successfully!"</string>