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https://github.com/moparisthebest/open-keychain
synced 2024-11-05 08:45:08 -05:00
Merge pull request #539 from gogowitczak/custom-key-length-info
Modified Spinner values for CreateKeyDialog. Added info for user about custom key length restrictions.
This commit is contained in:
commit
e9efd0ec87
@ -20,6 +20,7 @@ package org.sufficientlysecure.keychain.ui.dialog;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.content.DialogInterface;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.v4.app.DialogFragment;
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import android.support.v4.app.FragmentActivity;
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@ -37,6 +38,7 @@ import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.util.Choice;
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import java.util.ArrayList;
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import java.util.Arrays;
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public class CreateKeyDialogFragment extends DialogFragment {
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@ -53,6 +55,7 @@ public class CreateKeyDialogFragment extends DialogFragment {
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private Spinner mKeySizeSpinner;
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private TextView mCustomKeyTextView;
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private EditText mCustomKeyEditText;
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private TextView mCustomKeyInfoTextView;
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public void setOnAlgorithmSelectedListener(OnAlgorithmSelectedListener listener) {
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mAlgorithmSelectedListener = listener;
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@ -110,32 +113,16 @@ public class CreateKeyDialogFragment extends DialogFragment {
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}
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mKeySizeSpinner = (Spinner) view.findViewById(R.id.create_key_size);
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ArrayAdapter<CharSequence> keySizeAdapter = ArrayAdapter.createFromResource(
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context, R.array.key_size_spinner_values,
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android.R.layout.simple_spinner_item);
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keySizeAdapter
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.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
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// dynamic ArrayAdapter must be created (instead of ArrayAdapter.getFromResource), because it's content may change
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ArrayAdapter<CharSequence> keySizeAdapter = new ArrayAdapter<CharSequence>(context, android.R.layout.simple_spinner_item,
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new ArrayList<CharSequence>(Arrays.asList(getResources().getStringArray(R.array.rsa_key_size_spinner_values))));
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keySizeAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
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mKeySizeSpinner.setAdapter(keySizeAdapter);
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mKeySizeSpinner.setSelection(3); // Default to 4096 for the key length
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mKeySizeSpinner.setSelection(1); // Default to 4096 for the key length
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mCustomKeyTextView = (TextView) view.findViewById(R.id.custom_key_size_label);
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mCustomKeyEditText = (EditText) view.findViewById(R.id.custom_key_size_input);
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final AdapterView.OnItemSelectedListener customKeySelectedLisener = new AdapterView.OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
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final String selectedItemString = (String) parent.getSelectedItem();
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final String customLengthString = getResources().getString(R.string.key_size_custom);
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final boolean customSelected = customLengthString.equals(selectedItemString);
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final int visibility = customSelected ? View.VISIBLE : View.GONE;
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mCustomKeyEditText.setVisibility(visibility);
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mCustomKeyTextView.setVisibility(visibility);
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}
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@Override
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public void onNothingSelected(AdapterView<?> parent) {
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}
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};
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mCustomKeyInfoTextView = (TextView) view.findViewById(R.id.custom_key_size_info);
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dialog.setPositiveButton(android.R.string.ok,
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new DialogInterface.OnClickListener() {
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@ -158,20 +145,6 @@ public class CreateKeyDialogFragment extends DialogFragment {
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final AlertDialog alertDialog = dialog.create();
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final AdapterView.OnItemSelectedListener weakRsaListener = new AdapterView.OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
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if (mKeySizeSpinner == parent) {
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customKeySelectedLisener.onItemSelected(parent, view, position, id);
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}
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setOkButtonAvailability(alertDialog);
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}
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@Override
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public void onNothingSelected(AdapterView<?> parent) {
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}
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};
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mCustomKeyEditText.addTextChangedListener(new TextWatcher() {
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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@ -187,8 +160,31 @@ public class CreateKeyDialogFragment extends DialogFragment {
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}
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});
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mKeySizeSpinner.setOnItemSelectedListener(weakRsaListener);
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mAlgorithmSpinner.setOnItemSelectedListener(weakRsaListener);
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mKeySizeSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
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setCustomKeyVisibility();
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setOkButtonAvailability(alertDialog);
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}
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@Override
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public void onNothingSelected(AdapterView<?> parent) {
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}
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});
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mAlgorithmSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
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setKeyLengthSpinnerValuesForAlgorithm(((Choice) parent.getSelectedItem()).getId());
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setCustomKeyVisibility();
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setOkButtonAvailability(alertDialog);
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}
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@Override
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public void onNothingSelected(AdapterView<?> parent) {
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}
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});
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return alertDialog;
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}
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@ -263,4 +259,55 @@ public class CreateKeyDialogFragment extends DialogFragment {
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alertDialog.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(properKeyLength > 0);
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}
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private void setCustomKeyVisibility() {
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final String selectedItemString = (String) mKeySizeSpinner.getSelectedItem();
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final String customLengthString = getResources().getString(R.string.key_size_custom);
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final boolean customSelected = customLengthString.equals(selectedItemString);
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final int visibility = customSelected ? View.VISIBLE : View.GONE;
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mCustomKeyEditText.setVisibility(visibility);
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mCustomKeyTextView.setVisibility(visibility);
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mCustomKeyInfoTextView.setVisibility(visibility);
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}
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private void setKeyLengthSpinnerValuesForAlgorithm(int algorithmId) {
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final ArrayAdapter<CharSequence> keySizeAdapter = (ArrayAdapter<CharSequence>) mKeySizeSpinner.getAdapter();
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final Object selectedItem = mKeySizeSpinner.getSelectedItem();
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keySizeAdapter.clear();
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switch (algorithmId) {
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case Id.choice.algorithm.rsa:
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replaceArrayAdapterContent(keySizeAdapter, R.array.rsa_key_size_spinner_values);
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mCustomKeyInfoTextView.setText(getResources().getString(R.string.key_size_custom_info_rsa));
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break;
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case Id.choice.algorithm.elgamal:
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replaceArrayAdapterContent(keySizeAdapter, R.array.elgamal_key_size_spinner_values);
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mCustomKeyInfoTextView.setText(""); // ElGamal does not support custom key length
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break;
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case Id.choice.algorithm.dsa:
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replaceArrayAdapterContent(keySizeAdapter, R.array.dsa_key_size_spinner_values);
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mCustomKeyInfoTextView.setText(getResources().getString(R.string.key_size_custom_info_dsa));
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break;
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}
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keySizeAdapter.notifyDataSetChanged();
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// when switching algorithm, try to select same key length as before
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for (int i = 0; i < keySizeAdapter.getCount(); i++) {
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if (selectedItem.equals(keySizeAdapter.getItem(i))) {
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mKeySizeSpinner.setSelection(i);
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break;
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}
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}
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}
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private void replaceArrayAdapterContent(ArrayAdapter<CharSequence> arrayAdapter, int stringArrayResourceId) {
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final String[] spinnerValuesStringArray = getResources().getStringArray(stringArrayResourceId);
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
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arrayAdapter.addAll(spinnerValuesStringArray);
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} else {
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for (final String value : spinnerValuesStringArray) {
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arrayAdapter.add(value);
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}
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}
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}
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}
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@ -74,6 +74,13 @@
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android:inputType="number"
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android:visibility="gone"/>
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<TextView
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android:id="@+id/custom_key_size_info"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_gravity="center_vertical"
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android:padding="4dp" />
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</TableLayout>
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</ScrollView>
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@ -29,14 +29,25 @@
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<item>28800</item>
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<item>-1</item>
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</string-array>
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<string-array name="key_size_spinner_values" translatable="false">
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<item>@string/key_size_512</item>
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<item>@string/key_size_1024</item>
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<string-array name="rsa_key_size_spinner_values" translatable="false">
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<item>@string/key_size_2048</item>
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<item>@string/key_size_4096</item>
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<item>@string/key_size_8192</item>
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<item>@string/key_size_custom</item>
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</string-array>
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<string-array name="elgamal_key_size_spinner_values" translatable="false">
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<item>@string/key_size_1536</item>
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<item>@string/key_size_2048</item>
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<item>@string/key_size_3072</item>
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<item>@string/key_size_4096</item>
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<item>@string/key_size_8192</item>
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</string-array>
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<string-array name="dsa_key_size_spinner_values" translatable="false">
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<item>@string/key_size_512</item>
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<item>@string/key_size_768</item>
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<item>@string/key_size_1024</item>
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<item>@string/key_size_custom</item>
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</string-array>
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<string-array name="import_action_list" translatable="false">
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<item>@string/menu_import_from_key_server</item>
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<item>@string/menu_import_from_file</item>
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@ -249,7 +249,7 @@
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<string name="key_exported">Successfully exported 1 key.</string>
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<string name="keys_exported">Successfully exported %d keys.</string>
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<string name="no_keys_exported">No keys exported.</string>
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<string name="key_creation_el_gamal_info">Note: only subkeys support ElGamal, and for ElGamal the nearest keysize of 1536, 2048, 3072, 4096, or 8192 will be used.</string>
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<string name="key_creation_el_gamal_info">Note: only subkeys support ElGamal.</string>
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<string name="key_creation_weak_rsa_info">Note: generating RSA key with length 1024-bit and less is considered unsafe and it\'s disabled for generating new keys.</string>
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<string name="key_not_found">Couldn\'t find key %08X.</string>
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@ -375,12 +375,17 @@
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<!-- key bit length selections -->
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<string name="key_size_512">512</string>
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<string name="key_size_768">768</string>
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<string name="key_size_1024">1024</string>
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<string name="key_size_1536">1536</string>
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<string name="key_size_2048">2048</string>
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<string name="key_size_3072">3072</string>
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<string name="key_size_4096">4096</string>
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<string name="key_size_8192">8192</string>
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<string name="key_size_custom">Custom key size</string>
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<string name="key_size_custom_info">Type custom key length (in bits):</string>
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<string name="key_size_custom_info_rsa">RSA key length must be greater than 1024 and at most 8192. Also it must be multiplicity of 8.</string>
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<string name="key_size_custom_info_dsa">DSA key length must be at least 512 and at most 1024. Also it must be multiplicity of 64.</string>
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<!-- compression -->
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<string name="compression_fast">fast</string>
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