1 files changed, 216 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesFragment.java
new file mode 100644
index 000000000..fcad560ad
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesFragment.java
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.TextView;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
+import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
+import org.sufficientlysecure.keychain.ui.util.Notify;
+import org.sufficientlysecure.keychain.util.FileHelper;
+
+import java.io.File;
+
+public class DecryptFilesFragment extends DecryptFragment {
+    public static final String ARG_URI = "uri";
+    public static final String ARG_OPEN_DIRECTLY = "open_directly";
+
+    private static final int REQUEST_CODE_INPUT = 0x00007003;
+    private static final int REQUEST_CODE_OUTPUT = 0x00007007;
+
+    // view
+    private TextView mFilename;
+    private CheckBox mDeleteAfter;
+    private View mDecryptButton;
+
+    // model
+    private Uri mInputUri = null;
+    private Uri mOutputUri = null;
+
+    /**
+     * Creates new instance of this fragment
+     */
+    public static DecryptFilesFragment newInstance(Uri uri, boolean openDirectly) {
+        DecryptFilesFragment frag = new DecryptFilesFragment();
+
+        Bundle args = new Bundle();
+        args.putParcelable(ARG_URI, uri);
+        args.putBoolean(ARG_OPEN_DIRECTLY, openDirectly);
+
+        frag.setArguments(args);
+
+        return frag;
+    }
+
+    /**
+     * Inflate the layout for this fragment
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.decrypt_files_fragment, container, false);
+
+        mFilename = (TextView) view.findViewById(R.id.decrypt_files_filename);
+        mDeleteAfter = (CheckBox) view.findViewById(R.id.decrypt_files_delete_after_decryption);
+        mDecryptButton = view.findViewById(R.id.decrypt_files_action_decrypt);
+        view.findViewById(R.id.decrypt_files_browse).setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+                    FileHelper.openDocument(DecryptFilesFragment.this, "*/*", REQUEST_CODE_INPUT);
+                } else {
+                    FileHelper.openFile(DecryptFilesFragment.this, mInputUri, "*/*",
+                            REQUEST_CODE_INPUT);
+                }
+            }
+        });
+        mDecryptButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                decryptAction();
+            }
+        });
+
+        return view;
+    }
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        outState.putParcelable(ARG_URI, mInputUri);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        Bundle state = savedInstanceState != null ? savedInstanceState : getArguments();
+        setInputUri(state.<Uri>getParcelable(ARG_URI));
+
+        // should only come from args
+        if (state.getBoolean(ARG_OPEN_DIRECTLY, false)) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+                FileHelper.openDocument(DecryptFilesFragment.this, "*/*", REQUEST_CODE_INPUT);
+            } else {
+                FileHelper.openFile(DecryptFilesFragment.this, mInputUri, "*/*", REQUEST_CODE_INPUT);
+            }
+        }
+    }
+
+    private void setInputUri(Uri inputUri) {
+        if (inputUri == null) {
+            mInputUri = null;
+            mFilename.setText("");
+            return;
+        }
+
+        mInputUri = inputUri;
+        mFilename.setText(FileHelper.getFilename(getActivity(), mInputUri));
+    }
+
+    private void decryptAction() {
+        if (mInputUri == null) {
+            Notify.create(getActivity(), R.string.no_file_selected, Notify.Style.ERROR).show();
+            return;
+        }
+
+        cryptoOperation();
+    }
+
+    private String removeEncryptedAppend(String name) {
+        if (name.endsWith(Constants.FILE_EXTENSION_ASC)
+                || name.endsWith(Constants.FILE_EXTENSION_PGP_MAIN)
+                || name.endsWith(Constants.FILE_EXTENSION_PGP_ALTERNATE)) {
+            return name.substring(0, name.length() - 4);
+        }
+        return name;
+    }
+
+    private void askForOutputFilename(String originalFilename) {
+        if (TextUtils.isEmpty(originalFilename)) {
+            originalFilename = removeEncryptedAppend(FileHelper.getFilename(getActivity(), mInputUri));
+        }
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
+            File file = new File(mInputUri.getPath());
+            File parentDir = file.exists() ? file.getParentFile() : Constants.Path.APP_DIR;
+            File targetFile = new File(parentDir, originalFilename);
+            FileHelper.saveFile(this, getString(R.string.title_decrypt_to_file),
+                    getString(R.string.specify_file_to_decrypt_to), targetFile, REQUEST_CODE_OUTPUT);
+        } else {
+            FileHelper.saveDocument(this, "*/*", originalFilename, REQUEST_CODE_OUTPUT);
+        }
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode) {
+            case REQUEST_CODE_INPUT: {
+                if (resultCode == Activity.RESULT_OK && data != null) {
+                    setInputUri(data.getData());
+                }
+                return;
+            }
+
+            case REQUEST_CODE_OUTPUT: {
+                // This happens after output file was selected, so start our operation
+                if (resultCode == Activity.RESULT_OK && data != null) {
+                    mOutputUri = data.getData();
+                    cryptoOperation();
+                }
+                return;
+            }
+
+            default: {
+                super.onActivityResult(requestCode, resultCode, data);
+            }
+        }
+    }
+
+    @Override
+    protected void onVerifyLoaded(boolean hideErrorOverlay) {
+
+    }
+
+    @Override
+    protected PgpDecryptVerifyInputParcel createOperationInput() {
+        return new PgpDecryptVerifyInputParcel(mInputUri, mOutputUri).setAllowSymmetricDecryption(true);
+    }
+
+    @Override
+    protected void onCryptoOperationSuccess(DecryptVerifyResult result) {
+
+        // display signature result in activity
+        loadVerifyResult(result);
+
+        // TODO delete after decrypt not implemented!
+
+    }
+
+}