1 files changed, 327 insertions, 0 deletions
diff --git a/src/com/android/settings/vpn2/VpnDialog.java b/src/com/android/settings/vpn2/VpnDialog.java
new file mode 100644
index 0000000..4f9d0a2
--- /dev/null
+++ b/src/com/android/settings/vpn2/VpnDialog.java
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+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.vpn2;
+
+import com.android.settings.R;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.security.Credentials;
+import android.security.KeyStore;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemSelectedListener;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+class VpnDialog extends AlertDialog implements TextWatcher, OnItemSelectedListener {
+    private static final String DUMMY = "\r";
+
+    private static String getDummy(String secret) {
+        return secret.isEmpty() ? "" : DUMMY;
+    }
+
+    private static String getSecret(String oldSecret, TextView view) {
+        String newSecret = view.getText().toString();
+        return DUMMY.equals(newSecret) ? oldSecret : newSecret;
+    }
+
+    private final KeyStore mKeyStore = KeyStore.getInstance();
+    private final DialogInterface.OnClickListener mListener;
+    private final VpnProfile mProfile;
+
+    private boolean mEditing;
+
+    private View mView;
+
+    private TextView mName;
+    private Spinner mType;
+    private TextView mServer;
+    private TextView mUsername;
+    private TextView mPassword;
+    private TextView mSearchDomains;
+    private TextView mRoutes;
+    private CheckBox mMppe;
+    private TextView mL2tpSecret;
+    private TextView mIpsecIdentifier;
+    private TextView mIpsecSecret;
+    private Spinner mIpsecUserCert;
+    private Spinner mIpsecCaCert;
+    private CheckBox mSaveLogin;
+
+    VpnDialog(Context context, DialogInterface.OnClickListener listener,
+            VpnProfile profile, boolean editing) {
+        super(context);
+        mListener = listener;
+        mProfile = profile;
+        mEditing = editing;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedState) {
+        mView = getLayoutInflater().inflate(R.layout.vpn_dialog, null);
+        setView(mView);
+        setInverseBackgroundForced(true);
+
+        Context context = getContext();
+
+        // First, find out all the fields.
+        mName = (TextView) mView.findViewById(R.id.name);
+        mType = (Spinner) mView.findViewById(R.id.type);
+        mServer = (TextView) mView.findViewById(R.id.server);
+        mUsername = (TextView) mView.findViewById(R.id.username);
+        mPassword = (TextView) mView.findViewById(R.id.password);
+        mSearchDomains = (TextView) mView.findViewById(R.id.search_domains);
+        mRoutes = (TextView) mView.findViewById(R.id.routes);
+        mMppe = (CheckBox) mView.findViewById(R.id.mppe);
+        mL2tpSecret = (TextView) mView.findViewById(R.id.l2tp_secret);
+        mIpsecIdentifier = (TextView) mView.findViewById(R.id.ipsec_identifier);
+        mIpsecSecret = (TextView) mView.findViewById(R.id.ipsec_secret);
+        mIpsecUserCert = (Spinner) mView.findViewById(R.id.ipsec_user_cert);
+        mIpsecCaCert = (Spinner) mView.findViewById(R.id.ipsec_ca_cert);
+        mSaveLogin = (CheckBox) mView.findViewById(R.id.save_login);
+
+        // Second, copy values from the profile.
+        mName.setText(mProfile.name);
+        mType.setSelection(mProfile.type);
+        mServer.setText(mProfile.server);
+        mUsername.setText(mProfile.username);
+        mPassword.setText(getDummy(mProfile.password));
+        mSearchDomains.setText(mProfile.searchDomains);
+        mRoutes.setText(mProfile.routes);
+        mMppe.setChecked(mProfile.mppe);
+        mL2tpSecret.setText(getDummy(mProfile.l2tpSecret));
+        mIpsecIdentifier.setText(mProfile.ipsecIdentifier);
+        mIpsecSecret.setText(getDummy(mProfile.ipsecSecret));
+        loadCertificates(mIpsecUserCert, Credentials.USER_CERTIFICATE,
+                0, mProfile.ipsecUserCert);
+        loadCertificates(mIpsecCaCert, Credentials.CA_CERTIFICATE,
+                R.string.vpn_no_ca_cert, mProfile.ipsecCaCert);
+        mSaveLogin.setChecked(mProfile.saveLogin);
+
+        // Third, add listeners to required fields.
+        mName.addTextChangedListener(this);
+        mType.setOnItemSelectedListener(this);
+        mServer.addTextChangedListener(this);
+        mUsername.addTextChangedListener(this);
+        mPassword.addTextChangedListener(this);
+        mIpsecSecret.addTextChangedListener(this);
+        mIpsecUserCert.setOnItemSelectedListener(this);
+
+        // Forth, determine to do editing or connecting.
+        boolean valid = validate(true);
+        mEditing = mEditing || !valid;
+
+        if (mEditing) {
+            setTitle(R.string.vpn_edit);
+
+            // Show common fields.
+            mView.findViewById(R.id.editor).setVisibility(View.VISIBLE);
+
+            // Show type-specific fields.
+            changeType(mProfile.type);
+
+            // Create a button to save the profile.
+            setButton(DialogInterface.BUTTON_POSITIVE,
+                    context.getString(R.string.vpn_save), mListener);
+        } else {
+            setTitle(context.getString(R.string.vpn_connect_to, mProfile.name));
+
+            // Not editing, just show username and password.
+            mView.findViewById(R.id.login).setVisibility(View.VISIBLE);
+
+            // Create a button to connect the network.
+            setButton(DialogInterface.BUTTON_POSITIVE,
+                    context.getString(R.string.vpn_connect), mListener);
+        }
+
+        // Always provide a cancel button.
+        setButton(DialogInterface.BUTTON_NEGATIVE,
+                context.getString(R.string.vpn_cancel), mListener);
+
+        // Let AlertDialog create everything.
+        super.onCreate(null);
+
+        // Disable the action button if necessary.
+        getButton(DialogInterface.BUTTON_POSITIVE)
+                .setEnabled(mEditing ? valid : validate(false));
+    }
+
+    @Override
+    public void afterTextChanged(Editable field) {
+        getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(validate(mEditing));
+    }
+
+    @Override
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+    }
+
+    @Override
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+    }
+
+    @Override
+    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+        if (parent == mType) {
+            changeType(position);
+        }
+        getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(validate(mEditing));
+    }
+
+    @Override
+    public void onNothingSelected(AdapterView<?> parent) {
+    }
+
+    private void changeType(int type) {
+        // First, hide everything.
+        mMppe.setVisibility(View.GONE);
+        mView.findViewById(R.id.l2tp).setVisibility(View.GONE);
+        mView.findViewById(R.id.ipsec_id).setVisibility(View.GONE);
+        mView.findViewById(R.id.ipsec_psk).setVisibility(View.GONE);
+        mView.findViewById(R.id.ipsec_user).setVisibility(View.GONE);
+        mView.findViewById(R.id.ipsec_ca).setVisibility(View.GONE);
+
+        // Then, unhide type-specific fields.
+        switch (type) {
+            case VpnProfile.TYPE_PPTP:
+                mMppe.setVisibility(View.VISIBLE);
+                break;
+            case VpnProfile.TYPE_L2TP_IPSEC_PSK:
+                mView.findViewById(R.id.l2tp).setVisibility(View.VISIBLE);
+                mView.findViewById(R.id.ipsec_psk).setVisibility(View.VISIBLE);
+                break;
+            case VpnProfile.TYPE_IPSEC_XAUTH_PSK:
+                mView.findViewById(R.id.ipsec_id).setVisibility(View.VISIBLE);
+                mView.findViewById(R.id.ipsec_psk).setVisibility(View.VISIBLE);
+                break;
+
+            case VpnProfile.TYPE_L2TP_IPSEC_RSA:
+                mView.findViewById(R.id.l2tp).setVisibility(View.VISIBLE);
+                // fall through
+            case VpnProfile.TYPE_IPSEC_XAUTH_RSA:
+                mView.findViewById(R.id.ipsec_user).setVisibility(View.VISIBLE);
+                // fall through
+            case VpnProfile.TYPE_IPSEC_HYBRID_RSA:
+                mView.findViewById(R.id.ipsec_ca).setVisibility(View.VISIBLE);
+                break;
+        }
+    }
+
+    private boolean validate(boolean editing) {
+        if (!editing) {
+            return mUsername.getText().length() != 0 && mPassword.getText().length() != 0;
+        }
+        if (mName.getText().length() == 0 || mServer.getText().length() == 0) {
+            return false;
+        }
+        switch (mType.getSelectedItemPosition()) {
+            case VpnProfile.TYPE_PPTP:
+                return true;
+
+            case VpnProfile.TYPE_L2TP_IPSEC_PSK:
+            case VpnProfile.TYPE_IPSEC_XAUTH_PSK:
+                return mIpsecSecret.getText().length() != 0;
+
+            case VpnProfile.TYPE_L2TP_IPSEC_RSA:
+            case VpnProfile.TYPE_IPSEC_XAUTH_RSA:
+                return mIpsecUserCert.getSelectedItemPosition() != 0;
+        }
+        return false;
+    }
+
+    private void loadCertificates(Spinner spinner, String prefix, int firstId, String selected) {
+        Context context = getContext();
+        String first = (firstId == 0) ? "" : context.getString(firstId);
+        String[] certificates = mKeyStore.saw(prefix);
+
+        if (certificates == null || certificates.length == 0) {
+            certificates = new String[] {first};
+        } else {
+            String[] array = new String[certificates.length + 1];
+            array[0] = first;
+            System.arraycopy(certificates, 0, array, 1, certificates.length);
+            certificates = array;
+        }
+
+        ArrayAdapter<String> adapter = new ArrayAdapter<String>(
+                context, android.R.layout.simple_spinner_item, certificates);
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        spinner.setAdapter(adapter);
+
+        for (int i = 1; i < certificates.length; ++i) {
+            if (certificates[i].equals(selected)) {
+                spinner.setSelection(i);
+                break;
+            }
+        }
+    }
+
+    boolean isEditing() {
+        return mEditing;
+    }
+
+    VpnProfile getProfile() {
+        // First, save common fields.
+        VpnProfile profile = new VpnProfile(mProfile.key);
+        profile.name = mName.getText().toString();
+        profile.type = mType.getSelectedItemPosition();
+        profile.server = mServer.getText().toString().trim();
+        profile.username = mUsername.getText().toString();
+        profile.password = getSecret(mProfile.password, mPassword);
+        profile.searchDomains = mSearchDomains.getText().toString().trim();
+        profile.routes = mRoutes.getText().toString().trim();
+
+        // Then, save type-specific fields.
+        switch (profile.type) {
+            case VpnProfile.TYPE_PPTP:
+                profile.mppe = mMppe.isChecked();
+                break;
+            case VpnProfile.TYPE_L2TP_IPSEC_PSK:
+                profile.l2tpSecret = getSecret(mProfile.l2tpSecret, mL2tpSecret);
+                profile.ipsecSecret = getSecret(mProfile.ipsecSecret, mIpsecSecret);
+                break;
+            case VpnProfile.TYPE_IPSEC_XAUTH_PSK:
+                profile.ipsecIdentifier = mIpsecIdentifier.getText().toString();
+                profile.ipsecSecret = getSecret(mProfile.ipsecSecret, mIpsecSecret);
+                break;
+
+            case VpnProfile.TYPE_L2TP_IPSEC_RSA:
+                profile.l2tpSecret = getSecret(mProfile.l2tpSecret, mL2tpSecret);
+                // fall through
+            case VpnProfile.TYPE_IPSEC_XAUTH_RSA:
+                if (mIpsecUserCert.getSelectedItemPosition() != 0) {
+                    profile.ipsecUserCert = (String) mIpsecUserCert.getSelectedItem();
+                }
+                // fall through
+            case VpnProfile.TYPE_IPSEC_HYBRID_RSA:
+                if (mIpsecCaCert.getSelectedItemPosition() != 0) {
+                    profile.ipsecCaCert = (String) mIpsecCaCert.getSelectedItem();
+                }
+                break;
+        }
+
+        profile.saveLogin = mSaveLogin.isChecked();
+        return profile;
+    }
+}