1 package org
.argeo
.cms
.internal
.kernel
;
3 import static org
.argeo
.cms
.auth
.AuthConstants
.ACCESS_CONTROL_CONTEXT
;
5 import java
.io
.IOException
;
6 import java
.security
.AccessControlContext
;
7 import java
.security
.AccessController
;
8 import java
.security
.PrivilegedActionException
;
9 import java
.security
.PrivilegedExceptionAction
;
10 import java
.security
.cert
.X509Certificate
;
11 import java
.util
.Enumeration
;
12 import java
.util
.Properties
;
13 import java
.util
.StringTokenizer
;
15 import javax
.jcr
.Repository
;
16 import javax
.security
.auth
.Subject
;
17 import javax
.security
.auth
.callback
.Callback
;
18 import javax
.security
.auth
.callback
.CallbackHandler
;
19 import javax
.security
.auth
.callback
.NameCallback
;
20 import javax
.security
.auth
.callback
.PasswordCallback
;
21 import javax
.security
.auth
.login
.LoginContext
;
22 import javax
.security
.auth
.login
.LoginException
;
23 import javax
.servlet
.FilterChain
;
24 import javax
.servlet
.Servlet
;
25 import javax
.servlet
.ServletException
;
26 import javax
.servlet
.http
.HttpServletRequest
;
27 import javax
.servlet
.http
.HttpServletResponse
;
28 import javax
.servlet
.http
.HttpSession
;
30 import org
.apache
.commons
.codec
.binary
.Base64
;
31 import org
.apache
.commons
.logging
.Log
;
32 import org
.apache
.commons
.logging
.LogFactory
;
33 import org
.argeo
.cms
.CmsException
;
34 import org
.argeo
.cms
.auth
.AuthConstants
;
35 import org
.argeo
.jackrabbit
.servlet
.OpenInViewSessionProvider
;
36 import org
.argeo
.jackrabbit
.servlet
.RemotingServlet
;
37 import org
.argeo
.jackrabbit
.servlet
.WebdavServlet
;
38 import org
.argeo
.jcr
.ArgeoJcrConstants
;
39 import org
.eclipse
.equinox
.http
.servlet
.ExtendedHttpService
;
40 import org
.osgi
.service
.http
.NamespaceException
;
43 * Intercepts and enriches http access, mainly focusing on security and
47 class NodeHttp
implements KernelConstants
, ArgeoJcrConstants
{
48 private final static Log log
= LogFactory
.getLog(NodeHttp
.class);
50 private final static String ATTR_AUTH
= "auth";
51 private final static String HEADER_AUTHORIZATION
= "Authorization";
52 private final static String HEADER_WWW_AUTHENTICATE
= "WWW-Authenticate";
54 // private final AuthenticationManager authenticationManager;
55 private final ExtendedHttpService httpService
;
57 // FIXME Make it more unique
58 private String httpAuthRealm
= "Argeo";
61 private final RootFilter rootFilter
;
62 // private final DoSFilter dosFilter;
63 // private final QoSFilter qosFilter;
65 // WebDav / JCR remoting
66 private OpenInViewSessionProvider sessionProvider
;
68 NodeHttp(ExtendedHttpService httpService
, NodeRepository node
) {
69 // this.bundleContext = bundleContext;
70 // this.authenticationManager = authenticationManager;
72 this.httpService
= httpService
;
75 rootFilter
= new RootFilter();
76 // dosFilter = new CustomDosFilter();
77 // qosFilter = new QoSFilter();
80 sessionProvider
= new OpenInViewSessionProvider();
82 registerRepositoryServlets(ALIAS_NODE
, node
);
84 httpService
.registerFilter("/", rootFilter
, null, null);
85 } catch (Exception e
) {
86 throw new CmsException("Could not register root filter", e
);
90 public void destroy() {
91 sessionProvider
.destroy();
92 unregisterRepositoryServlets(ALIAS_NODE
);
95 void registerRepositoryServlets(String alias
, Repository repository
) {
97 registerWebdavServlet(alias
, repository
, true);
98 registerWebdavServlet(alias
, repository
, false);
99 registerRemotingServlet(alias
, repository
, true);
100 registerRemotingServlet(alias
, repository
, false);
101 } catch (Exception e
) {
102 throw new CmsException(
103 "Could not register servlets for repository " + alias
, e
);
107 void unregisterRepositoryServlets(String alias
) {
108 // FIXME unregister servlets
111 void registerWebdavServlet(String alias
, Repository repository
,
112 boolean anonymous
) throws NamespaceException
, ServletException
{
113 WebdavServlet webdavServlet
= new WebdavServlet(repository
,
115 String pathPrefix
= anonymous ? WEBDAV_PUBLIC
: WEBDAV_PRIVATE
;
116 String path
= pathPrefix
+ "/" + alias
;
117 Properties ip
= new Properties();
118 ip
.setProperty(WebdavServlet
.INIT_PARAM_RESOURCE_CONFIG
, WEBDAV_CONFIG
);
119 ip
.setProperty(WebdavServlet
.INIT_PARAM_RESOURCE_PATH_PREFIX
, path
);
120 httpService
.registerFilter(path
, anonymous ?
new AnonymousFilter()
121 : new DavFilter(), null, null);
122 // Cast to servlet because of a weird behaviour in Eclipse
123 httpService
.registerServlet(path
, (Servlet
) webdavServlet
, ip
, null);
126 void registerRemotingServlet(String alias
, Repository repository
,
127 boolean anonymous
) throws NamespaceException
, ServletException
{
128 String pathPrefix
= anonymous ? REMOTING_PUBLIC
: REMOTING_PRIVATE
;
129 RemotingServlet remotingServlet
= new RemotingServlet(repository
,
131 String path
= pathPrefix
+ "/" + alias
;
132 Properties ip
= new Properties();
133 ip
.setProperty(RemotingServlet
.INIT_PARAM_RESOURCE_PATH_PREFIX
, path
);
135 // Looks like a bug in Jackrabbit remoting init
136 ip
.setProperty(RemotingServlet
.INIT_PARAM_HOME
,
137 KernelUtils
.getOsgiInstanceDir() + "/tmp/jackrabbit");
138 ip
.setProperty(RemotingServlet
.INIT_PARAM_TMP_DIRECTORY
, "remoting");
139 // in order to avoid annoying warning.
140 ip
.setProperty(RemotingServlet
.INIT_PARAM_PROTECTED_HANDLERS_CONFIG
,
142 // Cast to servlet because of a weird behaviour in Eclipse
143 httpService
.registerFilter(path
, anonymous ?
new AnonymousFilter()
144 : new DavFilter(), null, null);
145 httpService
.registerServlet(path
, (Servlet
) remotingServlet
, ip
, null);
148 // private Boolean isSessionAuthenticated(HttpSession httpSession) {
149 // SecurityContext contextFromSession = (SecurityContext) httpSession
150 // .getAttribute(SPRING_SECURITY_CONTEXT_KEY);
151 // return contextFromSession != null;
154 private void requestBasicAuth(HttpSession httpSession
,
155 HttpServletResponse response
) {
156 response
.setStatus(401);
157 response
.setHeader(HEADER_WWW_AUTHENTICATE
, "basic realm=\""
158 + httpAuthRealm
+ "\"");
159 httpSession
.setAttribute(ATTR_AUTH
, Boolean
.TRUE
);
162 private CallbackHandler
basicAuth(String authHeader
) {
163 if (authHeader
!= null) {
164 StringTokenizer st
= new StringTokenizer(authHeader
);
165 if (st
.hasMoreTokens()) {
166 String basic
= st
.nextToken();
167 if (basic
.equalsIgnoreCase("Basic")) {
169 // TODO manipulate char[]
170 String credentials
= new String(Base64
.decodeBase64(st
171 .nextToken()), "UTF-8");
172 // log.debug("Credentials: " + credentials);
173 int p
= credentials
.indexOf(":");
175 final String login
= credentials
.substring(0, p
)
177 final char[] password
= credentials
178 .substring(p
+ 1).trim().toCharArray();
180 return new CallbackHandler() {
181 public void handle(Callback
[] callbacks
) {
182 for (Callback cb
: callbacks
) {
183 if (cb
instanceof NameCallback
)
184 ((NameCallback
) cb
).setName(login
);
185 else if (cb
instanceof PasswordCallback
)
186 ((PasswordCallback
) cb
)
187 .setPassword(password
);
192 throw new CmsException(
193 "Invalid authentication token");
195 } catch (Exception e
) {
196 throw new CmsException(
197 "Couldn't retrieve authentication", e
);
202 throw new CmsException("Couldn't retrieve authentication");
205 /** Intercepts all requests. Authenticates. */
206 class RootFilter
extends HttpFilter
{
209 public void doFilter(HttpSession httpSession
,
210 HttpServletRequest request
, HttpServletResponse response
,
211 FilterChain filterChain
) throws IOException
, ServletException
{
212 if (log
.isTraceEnabled()) {
213 log
.trace(request
.getRequestURL().append(
214 request
.getQueryString() != null ?
"?"
215 + request
.getQueryString() : ""));
219 String servletPath
= request
.getServletPath();
221 // client certificate
222 X509Certificate clientCert
= extractCertificate(request
);
223 if (clientCert
!= null) {
225 // if (log.isDebugEnabled())
226 // log.debug(clientCert.getSubjectX500Principal().getName());
230 if (servletPath
.startsWith(PATH_DATA
)) {
231 filterChain
.doFilter(request
, response
);
235 // skip /ui (workbench) for the time being
236 if (servletPath
.startsWith(PATH_WORKBENCH
)) {
237 filterChain
.doFilter(request
, response
);
241 // redirect long RWT paths to anchor
242 String path
= request
.getRequestURI().substring(
243 servletPath
.length());
244 int pathLength
= path
.length();
245 if (pathLength
!= 0 && (path
.charAt(0) == '/')
246 && !servletPath
.endsWith("rwt-resources")
247 && !path
.startsWith(KernelConstants
.PATH_WORKBENCH
)
248 && path
.lastIndexOf('/') != 0) {
249 String newLocation
= request
.getServletPath() + "#" + path
;
250 response
.setHeader("Location", newLocation
);
251 response
.setStatus(HttpServletResponse
.SC_FOUND
);
256 filterChain
.doFilter(request
, response
);
260 private void logRequest(HttpServletRequest request
) {
261 log
.debug("contextPath=" + request
.getContextPath());
262 log
.debug("servletPath=" + request
.getServletPath());
263 log
.debug("requestURI=" + request
.getRequestURI());
264 log
.debug("queryString=" + request
.getQueryString());
265 StringBuilder buf
= new StringBuilder();
267 Enumeration
<String
> en
= request
.getHeaderNames();
268 while (en
.hasMoreElements()) {
269 String header
= en
.nextElement();
270 Enumeration
<String
> values
= request
.getHeaders(header
);
271 while (values
.hasMoreElements())
272 buf
.append(" " + header
+ ": " + values
.nextElement());
277 Enumeration
<String
> an
= request
.getAttributeNames();
278 while (an
.hasMoreElements()) {
279 String attr
= an
.nextElement();
280 Object value
= request
.getAttribute(attr
);
281 buf
.append(" " + attr
+ ": " + value
);
284 log
.debug("\n" + buf
);
287 private X509Certificate
extractCertificate(HttpServletRequest req
) {
288 X509Certificate
[] certs
= (X509Certificate
[]) req
289 .getAttribute("javax.servlet.request.X509Certificate");
290 if (null != certs
&& certs
.length
> 0) {
296 /** Intercepts all requests. Authenticates. */
297 private class AnonymousFilter
extends HttpFilter
{
299 public void doFilter(HttpSession httpSession
,
300 final HttpServletRequest request
,
301 final HttpServletResponse response
,
302 final FilterChain filterChain
) throws IOException
,
305 // Authenticate from session
306 // if (isSessionAuthenticated(httpSession)) {
307 // filterChain.doFilter(request, response);
311 Subject subject
= KernelUtils
.anonymousLogin();
313 Subject
.doAs(subject
, new PrivilegedExceptionAction
<Void
>() {
314 public Void
run() throws IOException
, ServletException
{
315 filterChain
.doFilter(request
, response
);
319 } catch (PrivilegedActionException e
) {
320 if (e
.getCause() instanceof ServletException
)
321 throw (ServletException
) e
.getCause();
322 else if (e
.getCause() instanceof IOException
)
323 throw (IOException
) e
.getCause();
325 throw new CmsException("Unexpected exception", e
.getCause());
330 /** Intercepts all requests. Authenticates. */
331 private class DavFilter
extends HttpFilter
{
334 public void doFilter(final HttpSession httpSession
,
335 final HttpServletRequest request
,
336 final HttpServletResponse response
,
337 final FilterChain filterChain
) throws IOException
,
340 AccessControlContext acc
= (AccessControlContext
) httpSession
341 .getAttribute(AuthConstants
.ACCESS_CONTROL_CONTEXT
);
342 final Subject subject
;
344 subject
= Subject
.getSubject(acc
);
346 // Process basic auth
347 String basicAuth
= request
.getHeader(HEADER_AUTHORIZATION
);
348 if (basicAuth
!= null) {
349 CallbackHandler token
= basicAuth(basicAuth
);
351 LoginContext lc
= new LoginContext(
352 AuthConstants
.LOGIN_CONTEXT_USER
, token
);
354 subject
= lc
.getSubject();
355 } catch (LoginException e
) {
356 throw new CmsException("Could not login", e
);
359 requestBasicAuth(httpSession
, response
);
363 // do filter as subject
365 Subject
.doAs(subject
, new PrivilegedExceptionAction
<Void
>() {
366 public Void
run() throws IOException
, ServletException
{
367 // add security context to session
368 httpSession
.setAttribute(ACCESS_CONTROL_CONTEXT
,
369 AccessController
.getContext());
370 filterChain
.doFilter(request
, response
);
374 } catch (PrivilegedActionException e
) {
375 if (e
.getCause() instanceof ServletException
)
376 throw (ServletException
) e
.getCause();
377 else if (e
.getCause() instanceof IOException
)
378 throw (IOException
) e
.getCause();
380 throw new CmsException("Unexpected exception", e
.getCause());
386 // class CustomDosFilter extends DoSFilter {
388 // protected String extractUserId(ServletRequest request) {
389 // HttpSession httpSession = ((HttpServletRequest) request)
391 // if (isSessionAuthenticated(httpSession)) {
392 // String userId = ((SecurityContext) httpSession
393 // .getAttribute(SPRING_SECURITY_CONTEXT_KEY))
394 // .getAuthentication().getName();
397 // return super.extractUserId(request);