Alternative key exchange by providing the public key in the URI
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55746743c4
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@ -26,6 +26,7 @@ import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentActivity;
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import android.text.Editable;
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import android.text.TextWatcher;
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import android.util.Base64;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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@ -48,13 +49,18 @@ import com.mikepenz.google_material_typeface_library.GoogleMaterial;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import ch.dissem.apps.abit.service.Singleton;
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import ch.dissem.apps.abit.util.Drawables;
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import ch.dissem.bitmessage.entity.BitmessageAddress;
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import ch.dissem.bitmessage.exception.ApplicationException;
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import ch.dissem.bitmessage.wif.WifExporter;
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import static android.graphics.Color.BLACK;
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import static android.graphics.Color.WHITE;
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import static android.util.Base64.URL_SAFE;
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/**
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@ -269,6 +275,16 @@ public class AddressDetailFragment extends Fragment {
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if (address.getAlias() != null) {
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link.append("?label=").append(address.getAlias());
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}
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if (address.getPubkey() != null) {
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link.append(address.getAlias() == null ? '?' : '&');
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ByteArrayOutputStream pubkey = new ByteArrayOutputStream();
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try {
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address.getPubkey().writeUnencrypted(pubkey);
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} catch (IOException e) {
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throw new ApplicationException(e);
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}
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link.append("pubkey=").append(Base64.encodeToString(pubkey.toByteArray(), URL_SAFE));
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}
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BitMatrix result;
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try {
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result = new MultiFormatWriter().encode(link.toString(),
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@ -20,17 +20,32 @@ import android.app.Activity;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.util.Base64;
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import android.view.View;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.Switch;
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import android.widget.TextView;
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import ch.dissem.apps.abit.service.Singleton;
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import ch.dissem.bitmessage.BitmessageContext;
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import ch.dissem.bitmessage.entity.BitmessageAddress;
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import ch.dissem.bitmessage.entity.payload.Pubkey;
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import ch.dissem.bitmessage.entity.payload.V2Pubkey;
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import ch.dissem.bitmessage.entity.payload.V3Pubkey;
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import ch.dissem.bitmessage.entity.payload.V4Pubkey;
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import static android.util.Base64.URL_SAFE;
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public class CreateAddressActivity extends AppCompatActivity {
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private static final Pattern KEY_VALUE_PATTERN = Pattern.compile("^([a-zA-Z]+)=(.*)$");
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private byte[] pubkeyBytes;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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@ -48,12 +63,19 @@ public class CreateAddressActivity extends AppCompatActivity {
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String addressText = getAddress(uri);
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String[] parameters = getParameters(uri);
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for (String parameter : parameters) {
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String name = parameter.substring(0, 6).toLowerCase();
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if (name.startsWith("label")) {
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label.setText(parameter.substring(parameter.indexOf('=') + 1).trim());
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} else if (name.startsWith("action")) {
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parameter = parameter.toLowerCase();
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subscribe.setChecked(parameter.contains("subscribe"));
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Matcher matcher = KEY_VALUE_PATTERN.matcher(parameter);
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String key = matcher.group(1).toLowerCase();
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String value = matcher.group(2);
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switch (key) {
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case "label":
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label.setText(value.trim());
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break;
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case "action":
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subscribe.setChecked(value.trim().equalsIgnoreCase("subscribe"));
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break;
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case "pubkey":
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pubkeyBytes = Base64.decode(value, URL_SAFE);
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break;
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}
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}
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@ -83,6 +105,30 @@ public class CreateAddressActivity extends AppCompatActivity {
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if (subscribe.isChecked()) {
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bmc.addSubscribtion(bmAddress);
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}
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if (pubkeyBytes != null) {
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try {
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final Pubkey pubkey;
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InputStream pubkeyStream = new ByteArrayInputStream(pubkeyBytes);
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long stream = bmAddress.getStream();
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switch ((int) bmAddress.getVersion()) {
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case 2:
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pubkey = V2Pubkey.read(pubkeyStream, stream);
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break;
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case 3:
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pubkey = V3Pubkey.read(pubkeyStream, stream);
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break;
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case 4:
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pubkey = new V4Pubkey(V3Pubkey.read(pubkeyStream, stream));
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break;
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default:
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pubkey = null;
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}
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if (pubkey != null) {
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bmAddress.setPubkey(pubkey);
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}
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} catch (Exception ignore) {
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}
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}
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setResult(Activity.RESULT_OK);
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finish();
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