/*
    * Copyright (C) 2009-2010, Google Inc. and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  
  package org.eclipse.jgit.http.server.resolver;
  
  import java.util.Arrays;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.eclipse.jgit.lib.Config;
  import org.eclipse.jgit.lib.Repository;
  import org.eclipse.jgit.transport.UploadPack;
  import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
  import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
  import org.eclipse.jgit.transport.resolver.UploadPackFactory;
  
  /**
   * Create and configure {@link org.eclipse.jgit.transport.UploadPack} service
   * instance.
   * <p>
   * Reading by upload-pack is permitted unless {@code http.uploadpack} is
   * explicitly set to false.
   */
  public class DefaultUploadPackFactory implements
  		UploadPackFactory<HttpServletRequest> {
  	private static class ServiceConfig {
  		final boolean enabled;
  
  		ServiceConfig(Config cfg) {
  			enabled = cfg.getBoolean("http", "uploadpack", true);
  		}
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public UploadPack create(HttpServletRequest req, Repository db)
  			throws ServiceNotEnabledException, ServiceNotAuthorizedException {
  		if (db.getConfig().get(ServiceConfig::new).enabled) {
  			UploadPack up = new UploadPack(db);
  			String header = req.getHeader("Git-Protocol"); //$NON-NLS-1$
  			if (header != null) {
  				String[] params = header.split(":"); //$NON-NLS-1$
  				up.setExtraParameters(Arrays.asList(params));
  			}
  			return up;
  		}
  		throw new ServiceNotEnabledException();
  	}
  }