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