/**
* Throws a {@link AccessDeniedException} if currently no user is logged in (aka: current user is
* anonymous).
*
* @param ref the referer to redirect to
* @param logout set to true to log out (does currently nothing)
* @return a redirect to the referer url
* @throws AccessDeniedException if currently no user is logged in. @HTTP 303 if the user is
* already logged in (or <code>logout == true</code>)
*/
@GET
@Path("/login")
public Response login(
@HeaderParam("Referer") String ref,
@QueryParam("logout") @DefaultValue("false") boolean logout,
@QueryParam("user") String login) {
// Check whether we want to logout
if (logout) {
userService.setCurrentUser(userService.getAnonymousUser());
throw new AccessDeniedException();
}
// Anonymous cannot login
if (userService.isAnonymous(userService.getCurrentUser())) throw new AccessDeniedException();
// Check whether this is the right (desired) user
if (login != null && !userService.getCurrentUser().equals(userService.getUser(login)))
throw new AccessDeniedException();
if (ref == null || "".equals(ref)) {
ref =
configurationService.getServerUri()
+ configurationService.getStringConfiguration("kiwi.pages.startup");
}
return Response.seeOther(java.net.URI.create(ref)).build();
}
private Response get(URI user) {
if (userService.isAnonymous(user)) {
AccountPoJo apj = new AccountPoJo(Namespaces.ANONYMOUS_LOGIN, user.stringValue());
return Response.ok(apj, Namespaces.MIME_TYPE_JSON)
.location(java.net.URI.create(user.stringValue()))
.build();
}
try {
RepositoryConnection conn = sesameService.getConnection();
try {
final UserAccount a = accountService.getAccount(user);
if (a != null) {
AccountPoJo apj = new AccountPoJo(a.getLogin(), a.getWebId());
apj.setRoles(a.getRoles());
for (Statement t :
ResourceUtils.listOutgoing(conn, conn.getValueFactory().createURI(a.getWebId()))) {
String prop = t.getPredicate().stringValue();
if (prop.startsWith(Namespaces.NS_FOAF)) {
Value object = t.getObject();
if (object instanceof org.openrdf.model.URI) {
apj.setFoaf(prop, String.format("<%s>", object));
} else if (object instanceof Literal) {
apj.setFoaf(prop, object.toString());
}
}
}
return Response.ok(apj, Namespaces.MIME_TYPE_JSON)
.location(java.net.URI.create(user.stringValue()))
.build();
}
return Response.status(Status.NOT_FOUND)
.entity("Could not find account data of " + user)
.build();
} finally {
conn.commit();
conn.close();
}
} catch (RepositoryException e) {
// This must not happen!
return Response.serverError().entity(e).build();
}
}