JGitConnectionFactory.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * 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:
 *   Codenvy, S.A. - initial API and implementation
 *   SAP           - implementation
 *******************************************************************************/
package org.eclipse.che.git.impl.jgit;

import org.eclipse.che.api.core.util.LineConsumerFactory;
import org.eclipse.che.api.git.CredentialsLoader;
import org.eclipse.che.api.git.GitConnectionFactory;
import org.eclipse.che.api.git.exception.GitException;
import org.eclipse.che.api.git.GitUserResolver;
import org.eclipse.che.plugin.ssh.key.script.SshKeyProvider;
import org.eclipse.jgit.internal.storage.file.FileRepository;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.UserAgent;

import javax.inject.Inject;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.File;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;

/**
 * JGit implementation for GitConnectionFactory
 * 
 * @author Tareq Sharafy (tareq.sha@gmail.com)
 */
public class JGitConnectionFactory extends GitConnectionFactory {

    private static final String USER_AGENT = "git/2.1.0";

    private final CredentialsLoader credentialsLoader;
    private final SshKeyProvider    sshKeyProvider;
    private final GitUserResolver   userResolver;

    @Inject
    public JGitConnectionFactory(CredentialsLoader credentialsLoader, SshKeyProvider sshKeyProvider, GitUserResolver userResolver) throws GitException {
        this.credentialsLoader = credentialsLoader;
        this.sshKeyProvider = sshKeyProvider;
        this.userResolver = userResolver;

        UserAgent.set(USER_AGENT);
        // Install the all-trusting trust manager
        try {
            SSLContext sslContext = SSLContext.getInstance("SSL");
            // Create a trust manager that does not validate certificate chains
            TrustManager[] trustAllCerts = new TrustManager[]{
                    new X509TrustManager() {
                        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                            return null;
                        }

                        public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
                        }

                        public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
                        }
                    }
            };
            sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
        } catch (NoSuchAlgorithmException | KeyManagementException e) {
            throw new GitException(e);
        }
    }

    @Override
    public JGitConnection getConnection(File workDir, LineConsumerFactory outputPublisherFactory) throws GitException {
        Repository gitRepo = createRepository(workDir);
        JGitConnection conn = new JGitConnection(gitRepo, credentialsLoader, sshKeyProvider, userResolver);
        conn.setOutputLineConsumerFactory(outputPublisherFactory);
        return conn;
    }

    private static Repository createRepository(File workDir) throws GitException {
        try {
            return new FileRepository(new File(workDir, Constants.DOT_GIT));
        } catch (IOException e) {
            throw new GitException(e.getMessage(), e);
        }
    }

    @Override
    public CredentialsLoader getCredentialsLoader() {
        return credentialsLoader;
    }
}