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44 package org.eclipse.jgit.http.server;
45
46 import static javax.servlet.http.HttpServletResponse.SC_FORBIDDEN;
47 import static javax.servlet.http.HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
48 import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
49 import static javax.servlet.http.HttpServletResponse.SC_UNAUTHORIZED;
50 import static org.eclipse.jgit.http.server.GitSmartHttpTools.sendError;
51 import static org.eclipse.jgit.http.server.ServletUtils.ATTRIBUTE_REPOSITORY;
52
53 import java.io.IOException;
54 import java.text.MessageFormat;
55
56 import javax.servlet.Filter;
57 import javax.servlet.FilterChain;
58 import javax.servlet.FilterConfig;
59 import javax.servlet.ServletContext;
60 import javax.servlet.ServletException;
61 import javax.servlet.ServletRequest;
62 import javax.servlet.ServletResponse;
63 import javax.servlet.http.HttpServletRequest;
64 import javax.servlet.http.HttpServletResponse;
65
66 import org.eclipse.jgit.errors.RepositoryNotFoundException;
67 import org.eclipse.jgit.lib.Repository;
68 import org.eclipse.jgit.transport.ServiceMayNotContinueException;
69 import org.eclipse.jgit.transport.resolver.RepositoryResolver;
70 import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
71 import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
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86 public class RepositoryFilter implements Filter {
87 private final RepositoryResolver<HttpServletRequest> resolver;
88
89 private ServletContext context;
90
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99 public RepositoryFilter(final RepositoryResolver<HttpServletRequest> resolver) {
100 this.resolver = resolver;
101 }
102
103 public void init(final FilterConfig config) throws ServletException {
104 context = config.getServletContext();
105 }
106
107 public void destroy() {
108 context = null;
109 }
110
111 public void doFilter(final ServletRequest request,
112 final ServletResponse response, final FilterChain chain)
113 throws IOException, ServletException {
114 HttpServletRequest req = (HttpServletRequest) request;
115 HttpServletResponse res = (HttpServletResponse) response;
116
117 if (request.getAttribute(ATTRIBUTE_REPOSITORY) != null) {
118 context.log(MessageFormat.format(HttpServerText.get().internalServerErrorRequestAttributeWasAlreadySet
119 , ATTRIBUTE_REPOSITORY
120 , getClass().getName()));
121 sendError(req, res, SC_INTERNAL_SERVER_ERROR);
122 return;
123 }
124
125 String name = req.getPathInfo();
126 while (name != null && 0 < name.length() && name.charAt(0) == '/')
127 name = name.substring(1);
128 if (name == null || name.length() == 0) {
129 sendError(req, res, SC_NOT_FOUND);
130 return;
131 }
132
133 final Repository db;
134 try {
135 db = resolver.open(req, name);
136 } catch (RepositoryNotFoundException e) {
137 sendError(req, res, SC_NOT_FOUND);
138 return;
139 } catch (ServiceNotEnabledException e) {
140 sendError(req, res, SC_FORBIDDEN);
141 return;
142 } catch (ServiceNotAuthorizedException e) {
143 res.sendError(SC_UNAUTHORIZED);
144 return;
145 } catch (ServiceMayNotContinueException e) {
146 sendError(req, res, SC_FORBIDDEN, e.getMessage());
147 return;
148 }
149 try {
150 request.setAttribute(ATTRIBUTE_REPOSITORY, db);
151 chain.doFilter(request, response);
152 } finally {
153 request.removeAttribute(ATTRIBUTE_REPOSITORY);
154 db.close();
155 }
156 }
157 }