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/*
* Copyright (C) 2013 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 android.util.Log;
import com.android.internal.net.VpnProfile;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
/**
* Parse VPN profiles from an XML file
*/
public class VpnProfileParser {
private final static String TAG = "VpnProfileParser";
private static Map<Integer, VpnInfo> mVpnPool = new HashMap<Integer, VpnInfo>();
static DefaultHandler mHandler = new DefaultHandler() {
boolean name;
boolean type;
boolean server;
boolean username;
boolean password;
boolean dnsServers;
boolean searchDomains;
boolean routes;
boolean mppe;
boolean l2tpSecret;
boolean ipsecIdentifier;
boolean ipsecSecret;
boolean ipsecUserCert;
boolean ipsecCaCert;
boolean ipsecServerCert;
boolean certFile;
boolean certFilePassword;
VpnProfile profile = null;
VpnInfo vpnInfo = null;
@Override
public void startElement(String uri, String localName, String tagName,
Attributes attributes) throws SAXException {
if (tagName.equalsIgnoreCase("vpn")) {
//create a new VPN profile
profile = new VpnProfile(Long.toHexString(System.currentTimeMillis()));
vpnInfo = new VpnInfo(profile);
}
if (tagName.equalsIgnoreCase("name")) {
name = true;
}
if (tagName.equalsIgnoreCase("type")) {
type = true;
}
if (tagName.equalsIgnoreCase("server")) {
server = true;
}
if (tagName.equalsIgnoreCase("username")) {
username = true;
}
if (tagName.equalsIgnoreCase("password")) {
password = true;
}
if (tagName.equalsIgnoreCase("dnsServers")) {
dnsServers = true;
}
if (tagName.equalsIgnoreCase("searchDomains")) {
searchDomains = true;
}
if (tagName.equalsIgnoreCase("mppe")) {
mppe = true;
}
if (tagName.equalsIgnoreCase("l2tpSecret")) {
l2tpSecret = true;
}
if (tagName.equalsIgnoreCase("ipsecIdentifier")) {
ipsecIdentifier = true;
}
if (tagName.equalsIgnoreCase("ipsecSecret")) {
ipsecSecret = true;
}
if (tagName.equalsIgnoreCase("ipsecUserCert")) {
ipsecUserCert = true;
}
if (tagName.equalsIgnoreCase("ipsecCaCert")) {
ipsecCaCert = true;
}
if (tagName.equalsIgnoreCase("ipsecServerCert")) {
ipsecServerCert = true;
}
if (tagName.equalsIgnoreCase("routes")) {
routes = true;
}
if (tagName.equalsIgnoreCase("cert-file")) {
certFile = true;
}
if (tagName.equalsIgnoreCase("cert-file-password")) {
certFilePassword = true;
}
}
@Override
public void endElement(String uri, String localName, String tagName) throws SAXException {
if (tagName.equalsIgnoreCase("vpn")) {
mVpnPool.put(profile.type, vpnInfo);
}
}
@Override
public void characters(char ch[], int start, int length) throws SAXException {
String strValue = new String(ch, start, length);
if (name) {
profile.name = strValue;
name = false;
}
if (type) {
int t = getVpnProfileType(strValue);
if (t < 0) {
throw new SAXException("not a valid VPN type");
} else {
profile.type = t;
}
type = false;
}
if (server) {
profile.server = strValue;
server = false;
}
if (username) {
profile.username = strValue;
username = false;
}
if (password) {
profile.password = strValue;
password = false;
}
if (dnsServers) {
profile.dnsServers = strValue;
dnsServers = false;
}
if (searchDomains) {
profile.searchDomains = strValue;
searchDomains = false;
}
if (mppe) {
profile.mppe = Boolean.valueOf(strValue);
mppe = false;
}
if (l2tpSecret) {
profile.l2tpSecret = strValue;
l2tpSecret = false;
}
if (ipsecIdentifier) {
profile.ipsecIdentifier = strValue;
ipsecIdentifier = false;
}
if (ipsecSecret) {
profile.ipsecSecret = strValue;
ipsecSecret = false;
}
if (ipsecUserCert) {
profile.ipsecUserCert = strValue;
ipsecUserCert = false;
}
if (ipsecCaCert) {
profile.ipsecCaCert = strValue;
ipsecCaCert = false;
}
if (ipsecServerCert) {
profile.ipsecServerCert = strValue;
ipsecServerCert = false;
}
if (routes) {
profile.routes = strValue;
routes = false;
}
if (certFile) {
vpnInfo.setCertificateFile(strValue);
certFile = false;
}
if (certFilePassword) {
vpnInfo.setPassword(strValue);
certFilePassword = false;
}
}
private int getVpnProfileType(String type) {
if (type.equalsIgnoreCase("TYPE_PPTP")) {
return VpnProfile.TYPE_PPTP;
} else if (type.equalsIgnoreCase("TYPE_L2TP_IPSEC_PSK")) {
return VpnProfile.TYPE_L2TP_IPSEC_PSK;
} else if (type.equalsIgnoreCase("TYPE_L2TP_IPSEC_RSA")) {
return VpnProfile.TYPE_L2TP_IPSEC_RSA;
} else if (type.equalsIgnoreCase("TYPE_IPSEC_XAUTH_PSK")) {
return VpnProfile.TYPE_IPSEC_XAUTH_PSK;
} else if (type.equalsIgnoreCase("TYPE_IPSEC_XAUTH_RSA")) {
return VpnProfile.TYPE_IPSEC_XAUTH_RSA;
} else if (type.equalsIgnoreCase("TYPE_IPSEC_HYBRID_RSA")) {
return VpnProfile.TYPE_IPSEC_HYBRID_RSA;
} else {
Log.v(TAG, "Invalid VPN type: " + type);
return -1;
}
}
};
public static Map<Integer, VpnInfo> parse(InputStream in) {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
saxParser.parse(in, mHandler);
} catch (SAXException e) {
Log.e(TAG, "Parse vpn profile exception: " + e.toString());
} catch (IOException e) {
Log.e(TAG, "Parse vpn profile exception: " + e.toString());
} catch (ParserConfigurationException e) {
Log.e(TAG, "Parse vpn profile exception: " + e.toString());
} finally {
return mVpnPool;
}
}
}
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