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- /*
- * 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;
-
- import static javax.servlet.http.HttpServletResponse.SC_FORBIDDEN;
- import static javax.servlet.http.HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
- import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
- import static javax.servlet.http.HttpServletResponse.SC_UNAUTHORIZED;
- import static org.eclipse.jgit.http.server.GitSmartHttpTools.sendError;
- import static org.eclipse.jgit.http.server.ServletUtils.ATTRIBUTE_REPOSITORY;
-
- import java.io.IOException;
- import java.text.MessageFormat;
-
- import javax.servlet.Filter;
- import javax.servlet.FilterChain;
- import javax.servlet.FilterConfig;
- import javax.servlet.ServletContext;
- import javax.servlet.ServletException;
- import javax.servlet.ServletRequest;
- import javax.servlet.ServletResponse;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
-
- import org.eclipse.jgit.errors.RepositoryNotFoundException;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.transport.ServiceMayNotContinueException;
- import org.eclipse.jgit.transport.resolver.RepositoryResolver;
- import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
- import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
-
- /**
- * Open a repository named by the path info through
- * {@link org.eclipse.jgit.transport.resolver.RepositoryResolver}.
- * <p>
- * This filter assumes it is invoked by
- * {@link org.eclipse.jgit.http.server.GitServlet} and is likely to not work as
- * expected if called from any other class. This filter assumes the path info of
- * the current request is a repository name which can be used by the configured
- * {@link org.eclipse.jgit.transport.resolver.RepositoryResolver} to open a
- * {@link org.eclipse.jgit.lib.Repository} and attach it to the current request.
- * <p>
- * This filter sets request attribute
- * {@link org.eclipse.jgit.http.server.ServletUtils#ATTRIBUTE_REPOSITORY} when
- * it discovers the repository, and automatically closes and removes the
- * attribute when the request is complete.
- */
- public class RepositoryFilter implements Filter {
- private final RepositoryResolver<HttpServletRequest> resolver;
-
- private ServletContext context;
-
- /**
- * Create a new filter.
- *
- * @param resolver
- * the resolver which will be used to translate the URL name
- * component to the actual
- * {@link org.eclipse.jgit.lib.Repository} instance for the
- * current web request.
- */
- public RepositoryFilter(RepositoryResolver<HttpServletRequest> resolver) {
- this.resolver = resolver;
- }
-
- /** {@inheritDoc} */
- @Override
- public void init(FilterConfig config) throws ServletException {
- context = config.getServletContext();
- }
-
- /** {@inheritDoc} */
- @Override
- public void destroy() {
- context = null;
- }
-
- /** {@inheritDoc} */
- @Override
- public void doFilter(final ServletRequest request,
- final ServletResponse response, final FilterChain chain)
- throws IOException, ServletException {
- HttpServletRequest req = (HttpServletRequest) request;
- HttpServletResponse res = (HttpServletResponse) response;
-
- if (request.getAttribute(ATTRIBUTE_REPOSITORY) != null) {
- context.log(MessageFormat.format(HttpServerText.get().internalServerErrorRequestAttributeWasAlreadySet
- , ATTRIBUTE_REPOSITORY
- , getClass().getName()));
- sendError(req, res, SC_INTERNAL_SERVER_ERROR);
- return;
- }
-
- String name = req.getPathInfo();
- while (name != null && 0 < name.length() && name.charAt(0) == '/')
- name = name.substring(1);
- if (name == null || name.length() == 0) {
- sendError(req, res, SC_NOT_FOUND);
- return;
- }
-
- try (Repository db = resolver.open(req, name)) {
- request.setAttribute(ATTRIBUTE_REPOSITORY, db);
- chain.doFilter(request, response);
- } catch (RepositoryNotFoundException e) {
- sendError(req, res, SC_NOT_FOUND);
- return;
- } catch (ServiceNotEnabledException e) {
- sendError(req, res, SC_FORBIDDEN, e.getMessage());
- return;
- } catch (ServiceNotAuthorizedException e) {
- res.sendError(SC_UNAUTHORIZED, e.getMessage());
- return;
- } catch (ServiceMayNotContinueException e) {
- sendError(req, res, e.getStatusCode(), e.getMessage());
- return;
- } finally {
- request.removeAttribute(ATTRIBUTE_REPOSITORY);
- }
- }
- }
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