224 lines
7.9 KiB
Java
224 lines
7.9 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui.dialog;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v4.app.DialogFragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.widget.Button;
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import android.widget.ImageView;
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import android.widget.TextView;
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import com.devspark.appmsg.AppMsg;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.QrCodeUtils;
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import java.io.IOException;
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import java.security.Provider;
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import java.util.ArrayList;
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public class ShareQrCodeDialogFragment extends DialogFragment {
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private static final String ARG_KEY_URI = "uri";
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private static final String ARG_FINGERPRINT_ONLY = "fingerprint_only";
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private ImageView mImage;
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private TextView mText;
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private boolean mFingerprintOnly;
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private ArrayList<String> mContentList;
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private int mCounter;
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private static final int QR_CODE_SIZE = 1000;
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/**
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* Creates new instance of this dialog fragment
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*/
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public static ShareQrCodeDialogFragment newInstance(Uri dataUri, boolean fingerprintOnly) {
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ShareQrCodeDialogFragment frag = new ShareQrCodeDialogFragment();
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Bundle args = new Bundle();
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args.putParcelable(ARG_KEY_URI, dataUri);
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args.putBoolean(ARG_FINGERPRINT_ONLY, fingerprintOnly);
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frag.setArguments(args);
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return frag;
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}
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/**
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* Creates dialog
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*/
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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final Activity activity = getActivity();
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Uri dataUri = getArguments().getParcelable(ARG_KEY_URI);
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mFingerprintOnly = getArguments().getBoolean(ARG_FINGERPRINT_ONLY);
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AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());
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alert.setTitle(R.string.share_qr_code_dialog_title);
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LayoutInflater inflater = activity.getLayoutInflater();
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View view = inflater.inflate(R.layout.share_qr_code_dialog, null);
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alert.setView(view);
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mImage = (ImageView) view.findViewById(R.id.share_qr_code_dialog_image);
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mText = (TextView) view.findViewById(R.id.share_qr_code_dialog_text);
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ProviderHelper providerHelper = new ProviderHelper(getActivity());
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String content = null;
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if (mFingerprintOnly) {
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alert.setPositiveButton(R.string.btn_okay, null);
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byte[] blob = (byte[]) providerHelper.getGenericData(
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KeyRings.buildUnifiedKeyRingUri(dataUri),
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KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
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if (blob == null) {
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Log.e(Constants.TAG, "key not found!");
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AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
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return null;
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}
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String fingerprint = PgpKeyHelper.convertFingerprintToHex(blob);
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mText.setText(getString(R.string.share_qr_code_dialog_fingerprint_text) + " " + fingerprint);
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content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
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setQrCode(content);
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} else {
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mText.setText(R.string.share_qr_code_dialog_start);
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try {
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Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
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content = providerHelper.getKeyRingAsArmoredString(uri);
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} catch (IOException e) {
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Log.e(Constants.TAG, "error processing key!", e);
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AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_ALERT).show();
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return null;
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} catch (ProviderHelper.NotFoundException e) {
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Log.e(Constants.TAG, "key not found!", e);
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AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
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return null;
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}
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// OnClickListener are set in onResume to prevent automatic dismissing of Dialogs
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// http://bit.ly/O5vfaR
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alert.setPositiveButton(R.string.btn_next, null);
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alert.setNegativeButton(android.R.string.cancel, null);
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mContentList = splitString(content, 1000);
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// start with first
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mCounter = 0;
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updatePartsQrCode();
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}
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return alert.create();
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}
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@Override
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public void onResume() {
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super.onResume();
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if (!mFingerprintOnly) {
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AlertDialog alertDialog = (AlertDialog) getDialog();
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final Button backButton = alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE);
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final Button nextButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
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backButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if (mCounter > 0) {
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mCounter--;
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updatePartsQrCode();
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updateDialog(backButton, nextButton);
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} else {
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dismiss();
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}
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}
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});
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nextButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if (mCounter < mContentList.size() - 1) {
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mCounter++;
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updatePartsQrCode();
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updateDialog(backButton, nextButton);
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} else {
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dismiss();
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}
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}
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});
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}
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}
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private void updatePartsQrCode() {
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// Content: <counter>,<size>,<content>
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setQrCode(mCounter + "," + mContentList.size() + "," + mContentList.get(mCounter));
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}
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private void setQrCode(String data) {
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mImage.setImageBitmap(QrCodeUtils.getQRCodeBitmap(data, QR_CODE_SIZE));
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}
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private void updateDialog(Button backButton, Button nextButton) {
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if (mCounter == 0) {
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backButton.setText(android.R.string.cancel);
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} else {
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backButton.setText(R.string.btn_back);
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}
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if (mCounter == mContentList.size() - 1) {
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nextButton.setText(android.R.string.ok);
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} else {
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nextButton.setText(R.string.btn_next);
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}
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mText.setText(getResources().getString(R.string.share_qr_code_dialog_progress,
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mCounter + 1, mContentList.size()));
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}
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/**
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* Split String by number of characters
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*
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* @param text
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* @param size
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* @return
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*/
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private ArrayList<String> splitString(String text, int size) {
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ArrayList<String> strings = new ArrayList<String>();
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int index = 0;
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while (index < text.length()) {
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strings.add(text.substring(index, Math.min(index + size, text.length())));
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index += size;
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}
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return strings;
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}
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}
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