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ReceivePackServlet.java 8.1KB

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  1. /*
  2. * Copyright (C) 2009-2010, Google Inc.
  3. * and other copyright owners as documented in the project's IP log.
  4. *
  5. * This program and the accompanying materials are made available
  6. * under the terms of the Eclipse Distribution License v1.0 which
  7. * accompanies this distribution, is reproduced below, and is
  8. * available at http://www.eclipse.org/org/documents/edl-v10.php
  9. *
  10. * All rights reserved.
  11. *
  12. * Redistribution and use in source and binary forms, with or
  13. * without modification, are permitted provided that the following
  14. * conditions are met:
  15. *
  16. * - Redistributions of source code must retain the above copyright
  17. * notice, this list of conditions and the following disclaimer.
  18. *
  19. * - Redistributions in binary form must reproduce the above
  20. * copyright notice, this list of conditions and the following
  21. * disclaimer in the documentation and/or other materials provided
  22. * with the distribution.
  23. *
  24. * - Neither the name of the Eclipse Foundation, Inc. nor the
  25. * names of its contributors may be used to endorse or promote
  26. * products derived from this software without specific prior
  27. * written permission.
  28. *
  29. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  30. * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  31. * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  32. * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  33. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  34. * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  35. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  36. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  37. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  38. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  40. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  41. * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  42. */
  43. package org.eclipse.jgit.http.server;
  44. import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
  45. import static javax.servlet.http.HttpServletResponse.SC_FORBIDDEN;
  46. import static javax.servlet.http.HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
  47. import static javax.servlet.http.HttpServletResponse.SC_UNAUTHORIZED;
  48. import static javax.servlet.http.HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE;
  49. import static org.eclipse.jgit.http.server.ClientVersionUtil.hasChunkedEncodingRequestBug;
  50. import static org.eclipse.jgit.http.server.ClientVersionUtil.hasPushStatusBug;
  51. import static org.eclipse.jgit.http.server.ClientVersionUtil.parseVersion;
  52. import static org.eclipse.jgit.http.server.GitSmartHttpTools.RECEIVE_PACK;
  53. import static org.eclipse.jgit.http.server.GitSmartHttpTools.RECEIVE_PACK_REQUEST_TYPE;
  54. import static org.eclipse.jgit.http.server.GitSmartHttpTools.RECEIVE_PACK_RESULT_TYPE;
  55. import static org.eclipse.jgit.http.server.GitSmartHttpTools.sendError;
  56. import static org.eclipse.jgit.http.server.ServletUtils.ATTRIBUTE_HANDLER;
  57. import static org.eclipse.jgit.http.server.ServletUtils.consumeRequestBody;
  58. import static org.eclipse.jgit.http.server.ServletUtils.getInputStream;
  59. import static org.eclipse.jgit.http.server.ServletUtils.getRepository;
  60. import static org.eclipse.jgit.util.HttpSupport.HDR_USER_AGENT;
  61. import java.io.IOException;
  62. import java.text.MessageFormat;
  63. import java.util.List;
  64. import javax.servlet.Filter;
  65. import javax.servlet.FilterChain;
  66. import javax.servlet.FilterConfig;
  67. import javax.servlet.ServletException;
  68. import javax.servlet.ServletRequest;
  69. import javax.servlet.ServletResponse;
  70. import javax.servlet.http.HttpServlet;
  71. import javax.servlet.http.HttpServletRequest;
  72. import javax.servlet.http.HttpServletResponse;
  73. import org.eclipse.jgit.errors.CorruptObjectException;
  74. import org.eclipse.jgit.errors.UnpackException;
  75. import org.eclipse.jgit.lib.Repository;
  76. import org.eclipse.jgit.transport.InternalHttpServerGlue;
  77. import org.eclipse.jgit.transport.ReceivePack;
  78. import org.eclipse.jgit.transport.RefAdvertiser.PacketLineOutRefAdvertiser;
  79. import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
  80. import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
  81. import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
  82. /** Server side implementation of smart push over HTTP. */
  83. class ReceivePackServlet extends HttpServlet {
  84. private static final long serialVersionUID = 1L;
  85. static class InfoRefs extends SmartServiceInfoRefs {
  86. private final ReceivePackFactory<HttpServletRequest> receivePackFactory;
  87. InfoRefs(ReceivePackFactory<HttpServletRequest> receivePackFactory,
  88. List<Filter> filters) {
  89. super(RECEIVE_PACK, filters);
  90. this.receivePackFactory = receivePackFactory;
  91. }
  92. @Override
  93. protected void begin(HttpServletRequest req, Repository db)
  94. throws IOException, ServiceNotEnabledException,
  95. ServiceNotAuthorizedException {
  96. ReceivePack rp = receivePackFactory.create(req, db);
  97. InternalHttpServerGlue.setPeerUserAgent(
  98. rp,
  99. req.getHeader(HDR_USER_AGENT));
  100. req.setAttribute(ATTRIBUTE_HANDLER, rp);
  101. }
  102. @Override
  103. protected void advertise(HttpServletRequest req,
  104. PacketLineOutRefAdvertiser pck) throws IOException,
  105. ServiceNotEnabledException, ServiceNotAuthorizedException {
  106. ReceivePack rp = (ReceivePack) req.getAttribute(ATTRIBUTE_HANDLER);
  107. try {
  108. rp.sendAdvertisedRefs(pck);
  109. } finally {
  110. rp.getRevWalk().release();
  111. }
  112. }
  113. }
  114. static class Factory implements Filter {
  115. private final ReceivePackFactory<HttpServletRequest> receivePackFactory;
  116. Factory(ReceivePackFactory<HttpServletRequest> receivePackFactory) {
  117. this.receivePackFactory = receivePackFactory;
  118. }
  119. public void doFilter(ServletRequest request, ServletResponse response,
  120. FilterChain chain) throws IOException, ServletException {
  121. HttpServletRequest req = (HttpServletRequest) request;
  122. HttpServletResponse rsp = (HttpServletResponse) response;
  123. ReceivePack rp;
  124. try {
  125. rp = receivePackFactory.create(req, getRepository(req));
  126. } catch (ServiceNotAuthorizedException e) {
  127. rsp.sendError(SC_UNAUTHORIZED);
  128. return;
  129. } catch (ServiceNotEnabledException e) {
  130. sendError(req, rsp, SC_FORBIDDEN);
  131. return;
  132. }
  133. try {
  134. req.setAttribute(ATTRIBUTE_HANDLER, rp);
  135. chain.doFilter(req, rsp);
  136. } finally {
  137. req.removeAttribute(ATTRIBUTE_HANDLER);
  138. }
  139. }
  140. public void init(FilterConfig filterConfig) throws ServletException {
  141. // Nothing.
  142. }
  143. public void destroy() {
  144. // Nothing.
  145. }
  146. }
  147. @Override
  148. public void doPost(final HttpServletRequest req,
  149. final HttpServletResponse rsp) throws IOException {
  150. if (!RECEIVE_PACK_REQUEST_TYPE.equals(req.getContentType())) {
  151. rsp.sendError(SC_UNSUPPORTED_MEDIA_TYPE);
  152. return;
  153. }
  154. int[] version = parseVersion(req.getHeader(HDR_USER_AGENT));
  155. if (hasChunkedEncodingRequestBug(version, req)) {
  156. GitSmartHttpTools.sendError(req, rsp, SC_BAD_REQUEST, "\n\n"
  157. + HttpServerText.get().clientHas175ChunkedEncodingBug);
  158. return;
  159. }
  160. SmartOutputStream out = new SmartOutputStream(req, rsp, false) {
  161. @Override
  162. public void flush() throws IOException {
  163. doFlush();
  164. }
  165. };
  166. ReceivePack rp = (ReceivePack) req.getAttribute(ATTRIBUTE_HANDLER);
  167. try {
  168. rp.setBiDirectionalPipe(false);
  169. rp.setEchoCommandFailures(hasPushStatusBug(version));
  170. rsp.setContentType(RECEIVE_PACK_RESULT_TYPE);
  171. rp.receive(getInputStream(req), out, null);
  172. out.close();
  173. } catch (CorruptObjectException e ) {
  174. // This should be already reported to the client.
  175. getServletContext().log(MessageFormat.format(
  176. HttpServerText.get().receivedCorruptObject,
  177. e.getMessage(),
  178. ServletUtils.identify(rp.getRepository())));
  179. consumeRequestBody(req);
  180. out.close();
  181. } catch (UnpackException e) {
  182. // This should be already reported to the client.
  183. log(rp.getRepository(), e.getCause());
  184. consumeRequestBody(req);
  185. out.close();
  186. } catch (Throwable e) {
  187. log(rp.getRepository(), e);
  188. if (!rsp.isCommitted()) {
  189. rsp.reset();
  190. sendError(req, rsp, SC_INTERNAL_SERVER_ERROR);
  191. }
  192. return;
  193. }
  194. }
  195. private void log(Repository git, Throwable e) {
  196. getServletContext().log(MessageFormat.format(
  197. HttpServerText.get().internalErrorDuringReceivePack,
  198. ServletUtils.identify(git)), e);
  199. }
  200. }