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44 package org.eclipse.jgit.http.server;
45
46 import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
47 import static javax.servlet.http.HttpServletResponse.SC_FORBIDDEN;
48 import static javax.servlet.http.HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
49 import static javax.servlet.http.HttpServletResponse.SC_UNAUTHORIZED;
50 import static javax.servlet.http.HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE;
51 import static org.eclipse.jgit.http.server.ClientVersionUtil.hasChunkedEncodingRequestBug;
52 import static org.eclipse.jgit.http.server.ClientVersionUtil.hasPushStatusBug;
53 import static org.eclipse.jgit.http.server.ClientVersionUtil.parseVersion;
54 import static org.eclipse.jgit.http.server.GitSmartHttpTools.RECEIVE_PACK;
55 import static org.eclipse.jgit.http.server.GitSmartHttpTools.RECEIVE_PACK_REQUEST_TYPE;
56 import static org.eclipse.jgit.http.server.GitSmartHttpTools.RECEIVE_PACK_RESULT_TYPE;
57 import static org.eclipse.jgit.http.server.GitSmartHttpTools.sendError;
58 import static org.eclipse.jgit.http.server.ServletUtils.ATTRIBUTE_HANDLER;
59 import static org.eclipse.jgit.http.server.ServletUtils.consumeRequestBody;
60 import static org.eclipse.jgit.http.server.ServletUtils.getInputStream;
61 import static org.eclipse.jgit.http.server.ServletUtils.getRepository;
62 import static org.eclipse.jgit.util.HttpSupport.HDR_USER_AGENT;
63
64 import java.io.IOException;
65 import java.text.MessageFormat;
66 import java.util.List;
67
68 import javax.servlet.Filter;
69 import javax.servlet.FilterChain;
70 import javax.servlet.FilterConfig;
71 import javax.servlet.ServletException;
72 import javax.servlet.ServletRequest;
73 import javax.servlet.ServletResponse;
74 import javax.servlet.http.HttpServlet;
75 import javax.servlet.http.HttpServletRequest;
76 import javax.servlet.http.HttpServletResponse;
77
78 import org.eclipse.jgit.errors.CorruptObjectException;
79 import org.eclipse.jgit.errors.PackProtocolException;
80 import org.eclipse.jgit.errors.UnpackException;
81 import org.eclipse.jgit.lib.Repository;
82 import org.eclipse.jgit.transport.InternalHttpServerGlue;
83 import org.eclipse.jgit.transport.ReceivePack;
84 import org.eclipse.jgit.transport.RefAdvertiser.PacketLineOutRefAdvertiser;
85 import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
86 import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
87 import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
88
89
90 class ReceivePackServlet extends HttpServlet {
91 private static final long serialVersionUID = 1L;
92
93 static class InfoRefs extends SmartServiceInfoRefs {
94 private final ReceivePackFactory<HttpServletRequest> receivePackFactory;
95
96 InfoRefs(ReceivePackFactory<HttpServletRequest> receivePackFactory,
97 List<Filter> filters) {
98 super(RECEIVE_PACK, filters);
99 this.receivePackFactory = receivePackFactory;
100 }
101
102 @Override
103 protected void begin(HttpServletRequest req, Repository db)
104 throws IOException, ServiceNotEnabledException,
105 ServiceNotAuthorizedException {
106 ReceivePack rp = receivePackFactory.create(req, db);
107 InternalHttpServerGlue.setPeerUserAgent(
108 rp,
109 req.getHeader(HDR_USER_AGENT));
110 req.setAttribute(ATTRIBUTE_HANDLER, rp);
111 }
112
113 @Override
114 protected void advertise(HttpServletRequest req,
115 PacketLineOutRefAdvertiser pck) throws IOException,
116 ServiceNotEnabledException, ServiceNotAuthorizedException {
117 ReceivePack rp = (ReceivePack) req.getAttribute(ATTRIBUTE_HANDLER);
118 try {
119 rp.sendAdvertisedRefs(pck);
120 } finally {
121 rp.getRevWalk().close();
122 }
123 }
124 }
125
126 static class Factory implements Filter {
127 private final ReceivePackFactory<HttpServletRequest> receivePackFactory;
128
129 Factory(ReceivePackFactory<HttpServletRequest> receivePackFactory) {
130 this.receivePackFactory = receivePackFactory;
131 }
132
133 @Override
134 public void doFilter(ServletRequest request, ServletResponse response,
135 FilterChain chain) throws IOException, ServletException {
136 HttpServletRequest req = (HttpServletRequest) request;
137 HttpServletResponse rsp = (HttpServletResponse) response;
138 ReceivePack rp;
139 try {
140 rp = receivePackFactory.create(req, getRepository(req));
141 } catch (ServiceNotAuthorizedException e) {
142 rsp.sendError(SC_UNAUTHORIZED, e.getMessage());
143 return;
144 } catch (ServiceNotEnabledException e) {
145 sendError(req, rsp, SC_FORBIDDEN, e.getMessage());
146 return;
147 }
148
149 try {
150 req.setAttribute(ATTRIBUTE_HANDLER, rp);
151 chain.doFilter(req, rsp);
152 } finally {
153 req.removeAttribute(ATTRIBUTE_HANDLER);
154 }
155 }
156
157 @Override
158 public void init(FilterConfig filterConfig) throws ServletException {
159
160 }
161
162 @Override
163 public void destroy() {
164
165 }
166 }
167
168
169 @Override
170 public void doPost(final HttpServletRequest req,
171 final HttpServletResponse rsp) throws IOException {
172 if (!RECEIVE_PACK_REQUEST_TYPE.equals(req.getContentType())) {
173 rsp.sendError(SC_UNSUPPORTED_MEDIA_TYPE);
174 return;
175 }
176
177 int[] version = parseVersion(req.getHeader(HDR_USER_AGENT));
178 if (hasChunkedEncodingRequestBug(version, req)) {
179 GitSmartHttpTools.sendError(req, rsp, SC_BAD_REQUEST, "\n\n"
180 + HttpServerText.get().clientHas175ChunkedEncodingBug);
181 return;
182 }
183
184 SmartOutputStream out = new SmartOutputStream(req, rsp, false) {
185 @Override
186 public void flush() throws IOException {
187 doFlush();
188 }
189 };
190
191 ReceivePack rp = (ReceivePack) req.getAttribute(ATTRIBUTE_HANDLER);
192 try {
193 rp.setBiDirectionalPipe(false);
194 rp.setEchoCommandFailures(hasPushStatusBug(version));
195 rsp.setContentType(RECEIVE_PACK_RESULT_TYPE);
196
197 rp.receive(getInputStream(req), out, null);
198 out.close();
199 } catch (CorruptObjectException e ) {
200
201 getServletContext().log(MessageFormat.format(
202 HttpServerText.get().receivedCorruptObject,
203 e.getMessage(),
204 ServletUtils.identify(rp.getRepository())));
205 consumeRequestBody(req);
206 out.close();
207
208 } catch (UnpackException | PackProtocolException e) {
209
210 log(rp.getRepository(), e.getCause());
211 consumeRequestBody(req);
212 out.close();
213
214 } catch (Throwable e) {
215 log(rp.getRepository(), e);
216 if (!rsp.isCommitted()) {
217 rsp.reset();
218 sendError(req, rsp, SC_INTERNAL_SERVER_ERROR);
219 }
220 return;
221 }
222 }
223
224 private void log(Repository git, Throwable e) {
225 getServletContext().log(MessageFormat.format(
226 HttpServerText.get().internalErrorDuringReceivePack,
227 ServletUtils.identify(git)), e);
228 }
229 }