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authorDominik <dominik@dominikschuermann.de>2012-03-10 20:22:29 +0100
committerDominik <dominik@dominikschuermann.de>2012-03-10 20:22:29 +0100
commit630780cae4683e8ba403b28da84f963221d80ee3 (patch)
tree74ee9eac3a4c5640451e88b29a1b3350ca538def /src/org/apg/ui/SignKeyActivity.java
parent3fd5a55516eace832d2d2300ebf7a2579ab9c6dc (diff)
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new directory structure
Diffstat (limited to 'src/org/apg/ui/SignKeyActivity.java')
-rw-r--r--src/org/apg/ui/SignKeyActivity.java294
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diff --git a/src/org/apg/ui/SignKeyActivity.java b/src/org/apg/ui/SignKeyActivity.java
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-package org.apg.ui;
-
-import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
-import java.security.SignatureException;
-import java.util.Iterator;
-
-import org.apg.Apg;
-import org.apg.Constants;
-import org.apg.HkpKeyServer;
-import org.apg.Id;
-import org.apg.Constants.extras;
-import org.apg.Id.dialog;
-import org.apg.Id.message;
-import org.apg.Id.request;
-import org.apg.Id.return_value;
-import org.spongycastle.jce.provider.BouncyCastleProvider;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
-import org.spongycastle.openpgp.PGPUtil;
-import org.apg.R;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.Message;
-import android.util.Log;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.widget.ArrayAdapter;
-import android.widget.Button;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.CompoundButton.OnCheckedChangeListener;
-import android.widget.Spinner;
-import android.widget.Toast;
-
-/**
- * gpg --sign-key
- *
- * signs the specified public key with the specified secret master key
- */
-public class SignKeyActivity extends BaseActivity {
- private static final String TAG = "SignKeyActivity";
-
- private long pubKeyId = 0;
- private long masterKeyId = 0;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
-
- // check we havent already signed it
- setContentView(R.layout.sign_key_layout);
-
- final Spinner keyServer = (Spinner) findViewById(R.id.keyServer);
- ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, mPreferences.getKeyServers());
- adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
- keyServer.setAdapter(adapter);
-
- final CheckBox sendKey = (CheckBox) findViewById(R.id.sendKey);
- if (!sendKey.isChecked()) {
- keyServer.setEnabled(false);
- } else {
- keyServer.setEnabled(true);
- }
-
- sendKey.setOnCheckedChangeListener(new OnCheckedChangeListener() {
-
- @Override
- public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
- if (!isChecked) {
- keyServer.setEnabled(false);
- } else {
- keyServer.setEnabled(true);
- }
- }
- });
-
- Button sign = (Button) findViewById(R.id.sign);
- sign.setEnabled(false); // disabled until the user selects a key to sign with
- sign.setOnClickListener(new OnClickListener() {
-
- @Override
- public void onClick(View v) {
- if (pubKeyId != 0) {
- initiateSigning();
- }
- }
- });
-
- pubKeyId = getIntent().getLongExtra(Apg.EXTRA_KEY_ID, 0);
- if (pubKeyId == 0) {
- finish(); // nothing to do if we dont know what key to sign
- } else {
- // kick off the SecretKey selection activity so the user chooses which key to sign with first
- Intent intent = new Intent(this, SelectSecretKeyListActivity.class);
- startActivityForResult(intent, Id.request.secret_keys);
- }
- }
-
- /**
- * handles the UI bits of the signing process on the UI thread
- */
- private void initiateSigning() {
- PGPPublicKeyRing pubring = Apg.getPublicKeyRing(pubKeyId);
- if (pubring != null) {
- // if we have already signed this key, dont bother doing it again
- boolean alreadySigned = false;
-
- @SuppressWarnings("unchecked")
- Iterator<PGPSignature> itr = pubring.getPublicKey(pubKeyId).getSignatures();
- while (itr.hasNext()) {
- PGPSignature sig = itr.next();
- if (sig.getKeyID() == masterKeyId) {
- alreadySigned = true;
- break;
- }
- }
-
- if (!alreadySigned) {
- /*
- * get the user's passphrase for this key (if required)
- */
- String passphrase = Apg.getCachedPassPhrase(masterKeyId);
- if (passphrase == null) {
- showDialog(Id.dialog.pass_phrase);
- return; // bail out; need to wait until the user has entered the passphrase before trying again
- } else {
- startSigning();
- }
- } else {
- final Bundle status = new Bundle();
- Message msg = new Message();
-
- status.putString(Apg.EXTRA_ERROR, "Key has already been signed");
-
- status.putInt(Constants.extras.STATUS, Id.message.done);
-
- msg.setData(status);
- sendMessage(msg);
-
- setResult(Id.return_value.error);
- finish();
- }
- }
- }
-
- @Override
- public long getSecretKeyId() {
- return masterKeyId;
- }
-
- @Override
- public void passPhraseCallback(long keyId, String passPhrase) {
- super.passPhraseCallback(keyId, passPhrase);
- startSigning();
- }
-
- /**
- * kicks off the actual signing process on a background thread
- */
- private void startSigning() {
- showDialog(Id.dialog.signing);
- startThread();
- }
-
- @Override
- public void run() {
- final Bundle status = new Bundle();
- Message msg = new Message();
-
- try {
- String passphrase = Apg.getCachedPassPhrase(masterKeyId);
- if (passphrase == null || passphrase.length() <= 0) {
- status.putString(Apg.EXTRA_ERROR, "Unable to obtain passphrase");
- } else {
- PGPPublicKeyRing pubring = Apg.getPublicKeyRing(pubKeyId);
-
- /*
- * sign the incoming key
- */
- PGPSecretKey secretKey = Apg.getSecretKey(masterKeyId);
- PGPPrivateKey signingKey = secretKey.extractPrivateKey(passphrase.toCharArray(), BouncyCastleProvider.PROVIDER_NAME);
- PGPSignatureGenerator sGen = new PGPSignatureGenerator(secretKey.getPublicKey().getAlgorithm(), PGPUtil.SHA256, BouncyCastleProvider.PROVIDER_NAME);
- sGen.initSign(PGPSignature.DIRECT_KEY, signingKey);
-
- PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
-
- PGPSignatureSubpacketVector packetVector = spGen.generate();
- sGen.setHashedSubpackets(packetVector);
-
- PGPPublicKey signedKey = PGPPublicKey.addCertification(pubring.getPublicKey(pubKeyId), sGen.generate());
- pubring = PGPPublicKeyRing.insertPublicKey(pubring, signedKey);
-
- // check if we need to send the key to the server or not
- CheckBox sendKey = (CheckBox) findViewById(R.id.sendKey);
- if (sendKey.isChecked()) {
- Spinner keyServer = (Spinner) findViewById(R.id.keyServer);
- HkpKeyServer server = new HkpKeyServer((String) keyServer.getSelectedItem());
-
- /*
- * upload the newly signed key to the key server
- */
-
- Apg.uploadKeyRingToServer(server, pubring);
- }
-
- // store the signed key in our local cache
- int retval = Apg.storeKeyRingInCache(pubring);
- if (retval != Id.return_value.ok && retval != Id.return_value.updated) {
- status.putString(Apg.EXTRA_ERROR, "Failed to store signed key in local cache");
- }
- }
- } catch (PGPException e) {
- Log.e(TAG, "Failed to sign key", e);
- status.putString(Apg.EXTRA_ERROR, "Failed to sign key");
- status.putInt(Constants.extras.STATUS, Id.message.done);
- return;
- } catch (NoSuchAlgorithmException e) {
- Log.e(TAG, "Failed to sign key", e);
- status.putString(Apg.EXTRA_ERROR, "Failed to sign key");
- status.putInt(Constants.extras.STATUS, Id.message.done);
- return;
- } catch (NoSuchProviderException e) {
- Log.e(TAG, "Failed to sign key", e);
- status.putString(Apg.EXTRA_ERROR, "Failed to sign key");
- status.putInt(Constants.extras.STATUS, Id.message.done);
- return;
- } catch (SignatureException e) {
- Log.e(TAG, "Failed to sign key", e);
- status.putString(Apg.EXTRA_ERROR, "Failed to sign key");
- status.putInt(Constants.extras.STATUS, Id.message.done);
- return;
- }
-
- status.putInt(Constants.extras.STATUS, Id.message.done);
-
- msg.setData(status);
- sendMessage(msg);
-
- if (status.containsKey(Apg.EXTRA_ERROR)) {
- setResult(Id.return_value.error);
- } else {
- setResult(Id.return_value.ok);
- }
-
- finish();
- }
-
- @Override
- protected void onActivityResult(int requestCode, int resultCode, Intent data) {
- switch (requestCode) {
- case Id.request.secret_keys: {
- if (resultCode == RESULT_OK) {
- masterKeyId = data.getLongExtra(Apg.EXTRA_KEY_ID, 0);
-
- // re-enable the sign button so the user can initiate the sign process
- Button sign = (Button) findViewById(R.id.sign);
- sign.setEnabled(true);
- }
-
- break;
- }
-
- default: {
- super.onActivityResult(requestCode, resultCode, data);
- }
- }
- }
-
- @Override
- public void doneCallback(Message msg) {
- super.doneCallback(msg);
-
- removeDialog(Id.dialog.signing);
-
- Bundle data = msg.getData();
- String error = data.getString(Apg.EXTRA_ERROR);
- if (error != null) {
- Toast.makeText(this, getString(R.string.errorMessage, error), Toast.LENGTH_SHORT).show();
- return;
- }
-
- Toast.makeText(this, R.string.keySignSuccess, Toast.LENGTH_SHORT).show();
- finish();
- }
-}