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/*******************************************************************************
* Copyright (c) 2015 Red Hat.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat - Initial Contribution
*******************************************************************************/
package org.eclipse.linuxtools.internal.docker.core;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.equinox.security.storage.ISecurePreferences;
import org.eclipse.equinox.security.storage.SecurePreferencesFactory;
import org.eclipse.equinox.security.storage.StorageException;
import org.eclipse.linuxtools.docker.core.Activator;
import org.eclipse.linuxtools.docker.core.IDockerConnection;
import org.eclipse.linuxtools.docker.core.IDockerConnectionStorageManager;
import org.eclipse.linuxtools.docker.core.Messages;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
/**
* Default implementation of the {@link IDockerConnectionStorageManager}.
*/
public class DefaultDockerConnectionStorageManager
implements IDockerConnectionStorageManager {
public final static String CONNECTIONS_FILE_NAME = "dockerconnections.xml"; //$NON-NLS-1$
@Override
public List<IDockerConnection> loadConnections() {
final List<IDockerConnection> connections = new ArrayList<>();
final IPath stateLocation = Activator.getDefault().getStateLocation();
final File connectionFile = stateLocation.append(CONNECTIONS_FILE_NAME)
.toFile();
final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
if (connectionFile.exists()) {
Document d = db.parse(connectionFile);
Element e = d.getDocumentElement();
// Get the stored configuration data
NodeList connectionNodes = e.getElementsByTagName("connection"); // $NON-NLS-1$
for (int x = 0; x < connectionNodes.getLength(); ++x) {
Node n = connectionNodes.item(x);
NamedNodeMap attrs = n.getAttributes();
Node nameNode = attrs.getNamedItem("name"); //$NON-NLS-1$
Node uriNode = attrs.getNamedItem("uri"); //$NON-NLS-1$
Node usernameNode = attrs.getNamedItem("username"); //$NON-NLS-1$
Node certNode = attrs.getNamedItem("cert"); //$NON-NLS-1$
if (uriNode != null) {
String uri = uriNode.getNodeValue();
String name = nameNode.getNodeValue();
if (usernameNode != null) {
String username = usernameNode.getNodeValue();
String key = DockerConnection.getPreferencesKey(uri,
username);
ISecurePreferences root = SecurePreferencesFactory
.getDefault();
ISecurePreferences node = root.node(key);
@SuppressWarnings("unused")
String password;
try {
password = node.get("password", null); //$NON-NLS-1$
} catch (StorageException e1) {
e1.printStackTrace();
}
}
final DockerConnection.Builder builder = new DockerConnection.Builder()
.name(name);
if (uri.startsWith("unix:")) { //$NON-NLS-1$
final DockerConnection connection = builder
.unixSocketConnection(
new UnixSocketConnectionSettings(uri));
connections.add(connection);
} else {
final String pathToCertificates = certNode != null
? certNode.getNodeValue() : null;
final DockerConnection connection = builder
.tcpConnection(new TCPConnectionSettings(
uri, pathToCertificates));
connections.add(connection);
}
}
}
}
} catch (ParserConfigurationException | SAXException | IOException e) {
Activator.log(e);
}
return connections;
}
@Override
public void saveConnections(List<IDockerConnection> connections) {
final IPath stateLocation = Activator.getDefault().getStateLocation();
final File connectionFile = stateLocation.append(CONNECTIONS_FILE_NAME)
.toFile();
try {
if (!connectionFile.exists()) {
connectionFile.createNewFile();
}
try (final PrintWriter p = new PrintWriter(
new BufferedWriter(new FileWriter(connectionFile)))) {
p.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); //$NON-NLS-1$
p.println("<connections>"); // $NON-NLS-1$
for (IDockerConnection d : connections) {
String name = d.getName();
if (name.equals(Messages.Unnamed)) {
name = "";
}
p.print("<connection name=\"" + name + //$NON-NLS-1$
"\" uri=\"" + d.getUri()); //$NON-NLS-1$
if (d.getUsername() != null) {
p.print("\" username=\"" + d.getUsername()); //$NON-NLS-1$
}
if (d.getTcpCertPath() != null) {
p.print("\" cert=\"" + d.getTcpCertPath()); //$NON-NLS-1$
}
p.println("\"/>"); //$NON-NLS-1$
}
p.println("</connections>"); //$NON-NLS-1$
}
} catch (Exception e) {
Activator.log(e);
}
}
}
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