internal/kernel/NodeHttp.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4 import java.nio.file.Files;
   5 import java.nio.file.Path;
   6 import java.util.Properties;
   7
   8 import javax.jcr.Repository;
   9 import javax.servlet.ServletException;
  10 import javax.servlet.http.HttpServletRequest;
  11 import javax.servlet.http.HttpServletResponse;
  12
  13 import org.apache.commons.logging.Log;
  14 import org.apache.commons.logging.LogFactory;
  15 import org.apache.jackrabbit.server.SessionProvider;
  16 import org.apache.jackrabbit.server.remoting.davex.JcrRemotingServlet;
  17 import org.apache.jackrabbit.webdav.simple.SimpleWebdavServlet;
  18 import org.argeo.api.NodeConstants;
  19 import org.argeo.cms.CmsException;
  20 import org.argeo.cms.internal.http.CmsSessionProvider;
  21 import org.argeo.cms.internal.http.DataHttpContext;
  22 import org.argeo.cms.internal.http.HttpUtils;
  23 import org.argeo.cms.internal.http.LinkServlet;
  24 import org.argeo.cms.internal.http.PrivateHttpContext;
  25 import org.argeo.cms.internal.http.RobotServlet;
  26 import org.osgi.framework.BundleContext;
  27 import org.osgi.framework.FrameworkUtil;
  28 import org.osgi.framework.ServiceReference;
  29 import org.osgi.service.http.HttpService;
  30 import org.osgi.service.http.NamespaceException;
  31 import org.osgi.util.tracker.ServiceTracker;
  32
  33 /**
  34  * Intercepts and enriches http access, mainly focusing on security and
  35  * transactionality.
  36  */
  37 @Deprecated
  38 public class NodeHttp implements KernelConstants {
  39         private final static Log log = LogFactory.getLog(NodeHttp.class);
  40
  41         private final BundleContext bc = FrameworkUtil.getBundle(getClass()).getBundleContext();
  42
  43         private ServiceTracker<Repository, Repository> repositories;
  44         private final ServiceTracker<HttpService, HttpService> httpServiceTracker;
  45
  46         private String httpRealm = "Argeo";
  47         private String webDavConfig = HttpUtils.WEBDAV_CONFIG;
  48 //      private final boolean cleanState;
  49
  50         public NodeHttp() {
  51 //              this.cleanState = cleanState;
  52                 httpServiceTracker = new PrepareHttpStc();
  53                 // httpServiceTracker.open();
  54                 KernelUtils.asyncOpen(httpServiceTracker);
  55         }
  56
  57         public void destroy() {
  58                 if (repositories != null)
  59                         repositories.close();
  60         }
  61
  62         public void registerRepositoryServlets(HttpService httpService, String alias, Repository repository) {
  63                 if (httpService == null)
  64                         throw new CmsException("No HTTP service available");
  65                 try {
  66                         registerWebdavServlet(httpService, alias, repository);
  67                         registerRemotingServlet(httpService, alias, repository);
  68                         if (NodeConstants.EGO_REPOSITORY.equals(alias))
  69                                 registerFilesServlet(httpService, alias, repository);
  70                         if (log.isTraceEnabled())
  71                                 log.trace("Registered servlets for repository '" + alias + "'");
  72                 } catch (Exception e) {
  73                         throw new CmsException("Could not register servlets for repository '" + alias + "'", e);
  74                 }
  75         }
  76
  77         public static void unregisterRepositoryServlets(HttpService httpService, String alias) {
  78                 if (httpService == null)
  79                         return;
  80                 try {
  81                         httpService.unregister(webdavPath(alias));
  82                         httpService.unregister(remotingPath(alias));
  83                         if (NodeConstants.EGO_REPOSITORY.equals(alias))
  84                                 httpService.unregister(filesPath(alias));
  85                         if (log.isTraceEnabled())
  86                                 log.trace("Unregistered servlets for repository '" + alias + "'");
  87                 } catch (Exception e) {
  88                         log.error("Could not unregister servlets for repository '" + alias + "'", e);
  89                 }
  90         }
  91
  92         void registerWebdavServlet(HttpService httpService, String alias, Repository repository)
  93                         throws NamespaceException, ServletException {
  94                 // WebdavServlet webdavServlet = new WebdavServlet(repository, new
  95                 // OpenInViewSessionProvider(alias));
  96                 WebdavServlet webdavServlet = new WebdavServlet(repository, new CmsSessionProvider(alias));
  97                 String path = webdavPath(alias);
  98                 Properties ip = new Properties();
  99                 ip.setProperty(WebdavServlet.INIT_PARAM_RESOURCE_CONFIG, webDavConfig);
 100                 ip.setProperty(WebdavServlet.INIT_PARAM_RESOURCE_PATH_PREFIX, path);
 101                 httpService.registerServlet(path, webdavServlet, ip, new DataHttpContext(httpRealm));
 102         }
 103
 104         void registerFilesServlet(HttpService httpService, String alias, Repository repository)
 105                         throws NamespaceException, ServletException {
 106                 WebdavServlet filesServlet = new WebdavServlet(repository, new CmsSessionProvider(alias));
 107                 String path = filesPath(alias);
 108                 Properties ip = new Properties();
 109                 ip.setProperty(WebdavServlet.INIT_PARAM_RESOURCE_CONFIG, webDavConfig);
 110                 ip.setProperty(WebdavServlet.INIT_PARAM_RESOURCE_PATH_PREFIX, path);
 111                 httpService.registerServlet(path, filesServlet, ip, new PrivateHttpContext(httpRealm, true));
 112         }
 113
 114         void registerRemotingServlet(HttpService httpService, String alias, Repository repository)
 115                         throws NamespaceException, ServletException {
 116                 RemotingServlet remotingServlet = new RemotingServlet(repository, new CmsSessionProvider(alias));
 117                 String path = remotingPath(alias);
 118                 Properties ip = new Properties();
 119                 ip.setProperty(JcrRemotingServlet.INIT_PARAM_RESOURCE_PATH_PREFIX, path);
 120                 ip.setProperty(JcrRemotingServlet.INIT_PARAM_AUTHENTICATE_HEADER, "Negotiate");
 121
 122                 // Looks like a bug in Jackrabbit remoting init
 123                 Path tmpDir;
 124                 try {
 125                         tmpDir = Files.createTempDirectory("remoting_" + alias);
 126                 } catch (IOException e) {
 127                         throw new CmsException("Cannot create temp directory for remoting servlet", e);
 128                 }
 129                 ip.setProperty(RemotingServlet.INIT_PARAM_HOME, tmpDir.toString());
 130                 ip.setProperty(RemotingServlet.INIT_PARAM_TMP_DIRECTORY, "remoting_" + alias);
 131                 ip.setProperty(RemotingServlet.INIT_PARAM_PROTECTED_HANDLERS_CONFIG, HttpUtils.DEFAULT_PROTECTED_HANDLERS);
 132                 ip.setProperty(RemotingServlet.INIT_PARAM_CREATE_ABSOLUTE_URI, "false");
 133                 httpService.registerServlet(path, remotingServlet, ip, new PrivateHttpContext(httpRealm));
 134         }
 135
 136         static String webdavPath(String alias) {
 137                 return NodeConstants.PATH_DATA + "/" + alias;
 138         }
 139
 140         static String remotingPath(String alias) {
 141                 return NodeConstants.PATH_JCR + "/" + alias;
 142         }
 143
 144         static String filesPath(String alias) {
 145                 return NodeConstants.PATH_FILES;
 146         }
 147
 148         class RepositoriesStc extends ServiceTracker<Repository, Repository> {
 149                 private final HttpService httpService;
 150
 151                 private final BundleContext bc;
 152
 153                 public RepositoriesStc(BundleContext bc, HttpService httpService) {
 154                         super(bc, Repository.class, null);
 155                         this.httpService = httpService;
 156                         this.bc = bc;
 157                 }
 158
 159                 @Override
 160                 public Repository addingService(ServiceReference<Repository> reference) {
 161                         Repository repository = bc.getService(reference);
 162                         Object jcrRepoAlias = reference.getProperty(NodeConstants.CN);
 163                         if (jcrRepoAlias != null) {
 164                                 String alias = jcrRepoAlias.toString();
 165                                 registerRepositoryServlets(httpService, alias, repository);
 166                         }
 167                         return repository;
 168                 }
 169
 170                 @Override
 171                 public void modifiedService(ServiceReference<Repository> reference, Repository service) {
 172                 }
 173
 174                 @Override
 175                 public void removedService(ServiceReference<Repository> reference, Repository service) {
 176                         Object jcrRepoAlias = reference.getProperty(NodeConstants.CN);
 177                         if (jcrRepoAlias != null) {
 178                                 String alias = jcrRepoAlias.toString();
 179                                 unregisterRepositoryServlets(httpService, alias);
 180                         }
 181                 }
 182         }
 183
 184         private class PrepareHttpStc extends ServiceTracker<HttpService, HttpService> {
 185                 public PrepareHttpStc() {
 186                         super(bc, HttpService.class, null);
 187                 }
 188
 189                 @Override
 190                 public HttpService addingService(ServiceReference<HttpService> reference) {
 191                         long begin = System.currentTimeMillis();
 192                         if (log.isTraceEnabled())
 193                                 log.trace("HTTP prepare starts...");
 194                         HttpService httpService = addHttpService(reference);
 195                         if (log.isTraceEnabled())
 196                                 log.trace("HTTP prepare duration: " + (System.currentTimeMillis() - begin) + "ms");
 197                         return httpService;
 198                 }
 199
 200                 @Override
 201                 public void removedService(ServiceReference<HttpService> reference, HttpService service) {
 202                         repositories.close();
 203                         repositories = null;
 204                 }
 205
 206                 private HttpService addHttpService(ServiceReference<HttpService> sr) {
 207                         HttpService httpService = bc.getService(sr);
 208                         // TODO find constants
 209                         Object httpPort = sr.getProperty("http.port");
 210                         Object httpsPort = sr.getProperty("https.port");
 211
 212                         try {
 213                                 httpService.registerServlet("/!", new LinkServlet(), null, null);
 214                                 httpService.registerServlet("/robots.txt", new RobotServlet(), null, null);
 215                                 // httpService.registerServlet("/html", new HtmlServlet(), null, null);
 216                         } catch (Exception e) {
 217                                 throw new CmsException("Cannot register filters", e);
 218                         }
 219                         // track repositories
 220                         if (repositories != null)
 221                                 throw new CmsException("An http service is already configured");
 222                         repositories = new RepositoriesStc(bc, httpService);
 223                         // repositories.open();
 224
 225                         ///if (cleanState)
 226                         // FIXME properly publish servlets
 227                         //KernelUtils.asyncOpen(repositories);
 228
 229                         log.info(httpPortsMsg(httpPort, httpsPort));
 230                         // httpAvailable = true;
 231                         // checkReadiness();
 232
 233                         bc.registerService(NodeHttp.class, NodeHttp.this, null);
 234                         return httpService;
 235                 }
 236
 237                 private String httpPortsMsg(Object httpPort, Object httpsPort) {
 238                         return (httpPort != null ? "HTTP " + httpPort + " " : " ")
 239                                         + (httpsPort != null ? "HTTPS " + httpsPort : "");
 240                 }
 241         }
 242
 243         private static class WebdavServlet extends SimpleWebdavServlet {
 244                 private static final long serialVersionUID = -4687354117811443881L;
 245                 private final Repository repository;
 246
 247                 public WebdavServlet(Repository repository, SessionProvider sessionProvider) {
 248                         this.repository = repository;
 249                         setSessionProvider(sessionProvider);
 250                 }
 251
 252                 public Repository getRepository() {
 253                         return repository;
 254                 }
 255
 256                 @Override
 257                 protected void service(final HttpServletRequest request, final HttpServletResponse response)
 258                                 throws ServletException, IOException {
 259                         WebdavServlet.super.service(request, response);
 260                         // try {
 261                         // Subject subject = subjectFromRequest(request);
 262                         // // TODO make it stronger, with eTags.
 263                         // // if (CurrentUser.isAnonymous(subject) &&
 264                         // // request.getMethod().equals("GET")) {
 265                         // // response.setHeader("Cache-Control", "no-transform, public,
 266                         // // max-age=300, s-maxage=900");
 267                         // // }
 268                         //
 269                         // Subject.doAs(subject, new PrivilegedExceptionAction<Void>() {
 270                         // @Override
 271                         // public Void run() throws Exception {
 272                         // WebdavServlet.super.service(request, response);
 273                         // return null;
 274                         // }
 275                         // });
 276                         // } catch (PrivilegedActionException e) {
 277                         // throw new CmsException("Cannot process webdav request",
 278                         // e.getException());
 279                         // }
 280                 }
 281
 282         }
 283
 284         private static class RemotingServlet extends JcrRemotingServlet {
 285                 private final Log log = LogFactory.getLog(RemotingServlet.class);
 286                 private static final long serialVersionUID = 4605238259548058883L;
 287                 private final Repository repository;
 288                 private final SessionProvider sessionProvider;
 289
 290                 public RemotingServlet(Repository repository, SessionProvider sessionProvider) {
 291                         this.repository = repository;
 292                         this.sessionProvider = sessionProvider;
 293                 }
 294
 295                 @Override
 296                 protected Repository getRepository() {
 297                         return repository;
 298                 }
 299
 300                 @Override
 301                 protected SessionProvider getSessionProvider() {
 302                         return sessionProvider;
 303                 }
 304
 305                 @Override
 306                 protected void service(final HttpServletRequest request, final HttpServletResponse response)
 307                                 throws ServletException, IOException {
 308                         if (log.isTraceEnabled())
 309                                 HttpUtils.logRequest(log, request);
 310                         RemotingServlet.super.service(request, response);
 311                 }
 312         }
 313
 314 }