| /* |
| * 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 javax.servlet.http.HttpServletRequest; |
| |
| import org.eclipse.jgit.lib.Config; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException; |
| import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException; |
| |
| /** |
| * Controls access to bare files in a repository. |
| * <p> |
| * Older HTTP clients which do not speak the smart HTTP variant of the Git |
| * protocol fetch from a repository by directly getting its objects and pack |
| * files. This class, along with the {@code http.getanyfile} per-repository |
| * configuration setting, can be used by |
| * {@link org.eclipse.jgit.http.server.GitServlet} to control whether or not |
| * these older clients are permitted to read these direct files. |
| */ |
| public class AsIsFileService { |
| /** Always throws {@link ServiceNotEnabledException}. */ |
| public static final AsIsFileService DISABLED = new AsIsFileService() { |
| @Override |
| public void access(HttpServletRequest req, Repository db) |
| throws ServiceNotEnabledException { |
| throw new ServiceNotEnabledException(); |
| } |
| }; |
| |
| private static class ServiceConfig { |
| final boolean enabled; |
| |
| ServiceConfig(Config cfg) { |
| enabled = cfg.getBoolean("http", "getanyfile", true); |
| } |
| } |
| |
| /** |
| * Determine if {@code http.getanyfile} is enabled in the configuration. |
| * |
| * @param db |
| * the repository to check. |
| * @return {@code false} if {@code http.getanyfile} was explicitly set to |
| * {@code false} in the repository's configuration file; otherwise |
| * {@code true}. |
| */ |
| protected static boolean isEnabled(Repository db) { |
| return db.getConfig().get(ServiceConfig::new).enabled; |
| } |
| |
| /** |
| * Determine if access to any bare file of the repository is allowed. |
| * <p> |
| * This method silently succeeds if the request is allowed, or fails by |
| * throwing a checked exception if access should be denied. |
| * <p> |
| * The default implementation of this method checks {@code http.getanyfile}, |
| * throwing |
| * {@link org.eclipse.jgit.transport.resolver.ServiceNotEnabledException} if |
| * it was explicitly set to {@code false}, and otherwise succeeding |
| * silently. |
| * |
| * @param req |
| * current HTTP request, in case information from the request may |
| * help determine the access request. |
| * @param db |
| * the repository the request would obtain a bare file from. |
| * @throws ServiceNotEnabledException |
| * bare file access is not allowed on the target repository, by |
| * any user, for any reason. |
| * @throws ServiceNotAuthorizedException |
| * bare file access is not allowed for this HTTP request and |
| * repository, such as due to a permission error. |
| */ |
| public void access(HttpServletRequest req, Repository db) |
| throws ServiceNotEnabledException, ServiceNotAuthorizedException { |
| if (!isEnabled(db)) |
| throw new ServiceNotEnabledException(); |
| } |
| } |