Factorise generic command declaration
[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / internal / kernel / DataHttp.java
index 93a37ed98e58b286c8d8ce425442c3a960c0ae6a..bd444466871bcf3d8be4c9efc2e4f30c20e6b6a5 100644 (file)
@@ -34,6 +34,12 @@ import org.argeo.cms.auth.HttpRequestCallback;
 import org.argeo.cms.auth.HttpRequestCallbackHandler;
 import org.argeo.jcr.JcrUtils;
 import org.argeo.node.NodeConstants;
+import org.ietf.jgss.GSSContext;
+import org.ietf.jgss.GSSCredential;
+import org.ietf.jgss.GSSException;
+import org.ietf.jgss.GSSManager;
+import org.ietf.jgss.GSSName;
+import org.ietf.jgss.Oid;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.FrameworkUtil;
 import org.osgi.framework.ServiceReference;
@@ -79,6 +85,7 @@ class DataHttp implements KernelConstants {
                try {
                        registerWebdavServlet(alias, repository);
                        registerRemotingServlet(alias, repository);
+                       registerFilesServlet(alias, repository);
                        if (log.isDebugEnabled())
                                log.debug("Registered servlets for repository '" + alias + "'");
                } catch (Exception e) {
@@ -90,6 +97,7 @@ class DataHttp implements KernelConstants {
                try {
                        httpService.unregister(webdavPath(alias));
                        httpService.unregister(remotingPath(alias));
+                       httpService.unregister(filesPath(alias));
                        if (log.isDebugEnabled())
                                log.debug("Unregistered servlets for repository '" + alias + "'");
                } catch (Exception e) {
@@ -106,6 +114,15 @@ class DataHttp implements KernelConstants {
                httpService.registerServlet(path, webdavServlet, ip, new DataHttpContext());
        }
 
+       void registerFilesServlet(String alias, Repository repository) throws NamespaceException, ServletException {
+               WebdavServlet filesServlet = new WebdavServlet(repository, new OpenInViewSessionProvider(alias));
+               String path = filesPath(alias);
+               Properties ip = new Properties();
+               ip.setProperty(WebdavServlet.INIT_PARAM_RESOURCE_CONFIG, WEBDAV_CONFIG);
+               ip.setProperty(WebdavServlet.INIT_PARAM_RESOURCE_PATH_PREFIX, path);
+               httpService.registerServlet(path, filesServlet, ip, new FilesHttpContext());
+       }
+
        void registerRemotingServlet(String alias, Repository repository) throws NamespaceException, ServletException {
                RemotingServlet remotingServlet = new RemotingServlet(repository, new OpenInViewSessionProvider(alias));
                String path = remotingPath(alias);
@@ -128,13 +145,17 @@ class DataHttp implements KernelConstants {
                return NodeConstants.PATH_JCR + "/" + alias;
        }
 
-       private Subject subjectFromRequest(HttpServletRequest request) {
+       private String filesPath(String alias) {
+               return NodeConstants.PATH_FILES + "/" + alias;
+       }
+
+       private Subject subjectFromRequest(HttpServletRequest request, HttpServletResponse response) {
                Authorization authorization = (Authorization) request.getAttribute(HttpContext.AUTHORIZATION);
                if (authorization == null)
                        throw new CmsException("Not authenticated");
                try {
                        LoginContext lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER,
-                                       new HttpRequestCallbackHandler(request));
+                                       new HttpRequestCallbackHandler(request, response));
                        lc.login();
                        return lc.getSubject();
                } catch (LoginException e) {
@@ -142,12 +163,23 @@ class DataHttp implements KernelConstants {
                }
        }
 
-       private void requestBasicAuth(HttpServletRequest request, HttpServletResponse response) {
+       private void askForWwwAuth(HttpServletRequest request, HttpServletResponse response) {
                response.setStatus(401);
                response.setHeader(HEADER_WWW_AUTHENTICATE, "basic realm=\"" + httpAuthRealm + "\"");
+
+               // SPNEGO
+               // response.setHeader(HEADER_WWW_AUTHENTICATE, "Negotiate");
+               // response.setDateHeader("Date", System.currentTimeMillis());
+               // response.setDateHeader("Expires", System.currentTimeMillis() + (24 *
+               // 60 * 60 * 1000));
+               // response.setHeader("Accept-Ranges", "bytes");
+               // response.setHeader("Connection", "Keep-Alive");
+               // response.setHeader("Keep-Alive", "timeout=5, max=97");
+               // response.setContentType("text/html; charset=UTF-8");
+
        }
 
-       private CallbackHandler basicAuth(final HttpServletRequest httpRequest) {
+       private CallbackHandler extractHttpAuth(final HttpServletRequest httpRequest, HttpServletResponse httpResponse) {
                String authHeader = httpRequest.getHeader(HEADER_AUTHORIZATION);
                if (authHeader != null) {
                        StringTokenizer st = new StringTokenizer(authHeader);
@@ -169,8 +201,10 @@ class DataHttp implements KernelConstants {
                                                                                        ((NameCallback) cb).setName(login);
                                                                                else if (cb instanceof PasswordCallback)
                                                                                        ((PasswordCallback) cb).setPassword(password);
-                                                                               else if (cb instanceof HttpRequestCallback)
+                                                                               else if (cb instanceof HttpRequestCallback) {
                                                                                        ((HttpRequestCallback) cb).setRequest(httpRequest);
+                                                                                       ((HttpRequestCallback) cb).setResponse(httpResponse);
+                                                                               }
                                                                        }
                                                                }
                                                        };
@@ -180,6 +214,44 @@ class DataHttp implements KernelConstants {
                                        } catch (Exception e) {
                                                throw new CmsException("Couldn't retrieve authentication", e);
                                        }
+                               } else if (basic.equalsIgnoreCase("Negotiate")) {
+                                       // FIXME generalise
+                                       String _targetName = "HTTP/mostar.desktop.argeo.pro";
+                                       String spnegoToken = st.nextToken();
+                                       byte[] authToken = Base64.decodeBase64(spnegoToken);
+                                       GSSManager manager = GSSManager.getInstance();
+                                       try {
+                                               Oid krb5Oid = new Oid("1.3.6.1.5.5.2"); // http://java.sun.com/javase/6/docs/technotes/guides/security/jgss/jgss-features.html
+                                               GSSName gssName = manager.createName(_targetName, null);
+                                               GSSCredential serverCreds = manager.createCredential(gssName, GSSCredential.INDEFINITE_LIFETIME,
+                                                               krb5Oid, GSSCredential.ACCEPT_ONLY);
+                                               GSSContext gContext = manager.createContext(serverCreds);
+
+                                               if (gContext == null) {
+                                                       log.debug("SpnegoUserRealm: failed to establish GSSContext");
+                                               } else {
+                                                       while (!gContext.isEstablished()) {
+                                                               byte[] outToken = gContext.acceptSecContext(authToken, 0, authToken.length);
+                                                               String outTokenStr = Base64.encodeBase64String(outToken);
+                                                               httpResponse.setHeader("WWW-Authenticate", "Negotiate " + outTokenStr);
+                                                       }
+                                                       if (gContext.isEstablished()) {
+                                                               String clientName = gContext.getSrcName().toString();
+                                                               String role = clientName.substring(clientName.indexOf('@') + 1);
+
+                                                               log.debug("SpnegoUserRealm: established a security context");
+                                                               log.debug("Client Principal is: " + gContext.getSrcName());
+                                                               log.debug("Server Principal is: " + gContext.getTargName());
+                                                               log.debug("Client Default Role: " + role);
+
+                                                               // TODO log in
+                                                       }
+                                               }
+
+                                       } catch (GSSException gsse) {
+                                               log.warn(gsse, gsse);
+                                       }
+
                                }
                        }
                }
@@ -217,15 +289,17 @@ class DataHttp implements KernelConstants {
                @Override
                public boolean handleSecurity(final HttpServletRequest request, HttpServletResponse response)
                                throws IOException {
+
                        if (log.isTraceEnabled())
                                KernelUtils.logRequestHeaders(log, request);
                        LoginContext lc;
                        try {
-                               lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, new HttpRequestCallbackHandler(request));
+                               lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER,
+                                               new HttpRequestCallbackHandler(request, response));
                                lc.login();
                                // return true;
                        } catch (LoginException e) {
-                               CallbackHandler token = basicAuth(request);
+                               CallbackHandler token = extractHttpAuth(request, response);
                                if (token != null) {
                                        try {
                                                lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, token);
@@ -264,6 +338,52 @@ class DataHttp implements KernelConstants {
 
        }
 
+       private class FilesHttpContext implements HttpContext {
+               @Override
+               public boolean handleSecurity(final HttpServletRequest request, HttpServletResponse response)
+                               throws IOException {
+
+                       if (log.isTraceEnabled())
+                               KernelUtils.logRequestHeaders(log, request);
+                       LoginContext lc;
+                       try {
+                               lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER,
+                                               new HttpRequestCallbackHandler(request, response));
+                               lc.login();
+                               // return true;
+                       } catch (LoginException e) {
+                               CallbackHandler token = extractHttpAuth(request, response);
+                               if (token != null) {
+                                       try {
+                                               lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, token);
+                                               lc.login();
+                                               // Note: this is impossible to reliably clear the
+                                               // authorization header when access from a browser.
+                                       } catch (LoginException e1) {
+                                               throw new CmsException("Could not login", e1);
+                                       }
+                               } else {
+                                       askForWwwAuth(request, response);
+                                       lc = null;
+                                       return false;
+                               }
+                       }
+                       request.setAttribute(NodeConstants.LOGIN_CONTEXT_USER, lc);
+                       return true;
+               }
+
+               @Override
+               public URL getResource(String name) {
+                       return KernelUtils.getBundleContext(DataHttp.class).getBundle().getResource(name);
+               }
+
+               @Override
+               public String getMimeType(String name) {
+                       return null;
+               }
+
+       }
+
        private class RemotingHttpContext implements HttpContext {
                // private final boolean anonymous;
 
@@ -288,10 +408,11 @@ class DataHttp implements KernelConstants {
                                KernelUtils.logRequestHeaders(log, request);
                        LoginContext lc;
                        try {
-                               lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, new HttpRequestCallbackHandler(request));
+                               lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER,
+                                               new HttpRequestCallbackHandler(request, response));
                                lc.login();
                        } catch (CredentialNotFoundException e) {
-                               CallbackHandler token = basicAuth(request);
+                               CallbackHandler token = extractHttpAuth(request, response);
                                if (token != null) {
                                        try {
                                                lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, token);
@@ -302,7 +423,7 @@ class DataHttp implements KernelConstants {
                                                throw new CmsException("Could not login", e1);
                                        }
                                } else {
-                                       requestBasicAuth(request, response);
+                                       askForWwwAuth(request, response);
                                        lc = null;
                                }
                        } catch (LoginException e) {
@@ -442,7 +563,7 @@ class DataHttp implements KernelConstants {
                protected void service(final HttpServletRequest request, final HttpServletResponse response)
                                throws ServletException, IOException {
                        try {
-                               Subject subject = subjectFromRequest(request);
+                               Subject subject = subjectFromRequest(request, response);
                                Subject.doAs(subject, new PrivilegedExceptionAction<Void>() {
                                        @Override
                                        public Void run() throws Exception {