public static boolean createLink(
Content content, String link, org.sakaiproject.nakamura.api.lite.Session session)
throws org.sakaiproject.nakamura.api.lite.accesscontrol.AccessDeniedException,
StorageClientException {
String userId = session.getUserId();
if (User.ANON_USER.equals(userId)) {
throw new org.sakaiproject.nakamura.api.lite.accesscontrol.AccessDeniedException(
Security.ZONE_CONTENT, link, "Cant create a link", userId);
}
ContentManager contentManager = session.getContentManager();
Content linkNode = contentManager.get(link);
if (linkNode == null) {
linkNode =
new Content(
link,
ImmutableMap.of(
JcrResourceConstants.SLING_RESOURCE_TYPE_PROPERTY,
(Object) RT_SAKAI_LINK,
SAKAI_LINK,
content.getPath()));
} else {
linkNode.setProperty(JcrResourceConstants.SLING_RESOURCE_TYPE_PROPERTY, RT_SAKAI_LINK);
linkNode.setProperty(SAKAI_LINK, content.getPath());
}
contentManager.update(linkNode);
return true;
}
/**
* Manipulate the member list for this file.
*
* <p>{@inheritDoc}
*
* @see
* org.apache.sling.api.servlets.SlingAllMethodsServlet#doPost(org.apache.sling.api.SlingHttpServletRequest,
* org.apache.sling.api.SlingHttpServletResponse)
*/
@SuppressWarnings("unchecked")
@Override
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response)
throws ServletException, IOException {
// fail if anonymous
String remoteUser = request.getRemoteUser();
if (User.ANON_USER.equals(remoteUser)) {
response.sendError(SC_FORBIDDEN, "Anonymous users cannot update content members.");
return;
}
Session session = null;
boolean releaseSession = false;
try {
Resource resource = request.getResource();
session = resource.adaptTo(Session.class);
Content pooledContent = resource.adaptTo(Content.class);
AccessControlManager accessControlManager = session.getAccessControlManager();
AuthorizableManager authorizableManager = session.getAuthorizableManager();
User thisUser = authorizableManager.getUser();
if (!accessControlManager.can(
thisUser, Security.ZONE_CONTENT, pooledContent.getPath(), Permissions.CAN_READ)) {
response.sendError(SC_FORBIDDEN, "Insufficient permission to read this content.");
}
Map<String, Object> properties = pooledContent.getProperties();
String[] managers =
StorageClientUtils.nonNullStringArray(
(String[]) properties.get(POOLED_CONTENT_USER_MANAGER));
String[] editors =
StorageClientUtils.nonNullStringArray(
(String[]) properties.get(POOLED_CONTENT_USER_EDITOR));
String[] viewers =
StorageClientUtils.nonNullStringArray(
(String[]) properties.get(POOLED_CONTENT_USER_VIEWER));
Set<String> managerSet = Sets.newHashSet(managers);
Set<String> editorSet = Sets.newHashSet(editors);
Set<String> viewerSet = Sets.newHashSet(viewers);
List<String> removeViewers =
Arrays.asList(
StorageClientUtils.nonNullStringArray(request.getParameterValues(":viewer@Delete")));
List<String> removeManagers =
Arrays.asList(
StorageClientUtils.nonNullStringArray(request.getParameterValues(":manager@Delete")));
List<String> removeEditors =
Arrays.asList(
StorageClientUtils.nonNullStringArray(request.getParameterValues(":editor@Delete")));
List<String> addViewers =
Arrays.asList(
StorageClientUtils.nonNullStringArray(request.getParameterValues(":viewer")));
List<String> addManagers =
Arrays.asList(
StorageClientUtils.nonNullStringArray(request.getParameterValues(":manager")));
List<String> addEditors =
Arrays.asList(
StorageClientUtils.nonNullStringArray(request.getParameterValues(":editor")));
if (!accessControlManager.can(
thisUser, Security.ZONE_CONTENT, pooledContent.getPath(), Permissions.CAN_WRITE)) {
if (!addManagers.isEmpty()) {
response.sendError(SC_FORBIDDEN, "Non-managers may not add managers to content.");
return;
}
for (String name : removeManagers) {
// asking to remove managers who don't exist is harmless
if (managerSet.contains(name)) {
response.sendError(SC_FORBIDDEN, "Non-managers may not remove managers from content.");
return;
}
}
if (addViewers.contains(User.ANON_USER) || addViewers.contains(Group.EVERYONE)) {
response.sendError(
SC_FORBIDDEN, "Non-managers may not add 'anonymous' or 'everyone' as viewers.");
return;
}
if (addEditors.contains(User.ANON_USER) || addEditors.contains(Group.EVERYONE)) {
response.sendError(
SC_FORBIDDEN, "Non-managers may not add 'anonymous' or 'everyone' as editors.");
return;
}
for (String name : removeViewers) {
if (!thisUser.getId().equals(name)) {
Authorizable viewer = authorizableManager.findAuthorizable(name);
if (viewer != null
&& !accessControlManager.can(
thisUser, Security.ZONE_AUTHORIZABLES, name, Permissions.CAN_WRITE)) {
response.sendError(
SC_FORBIDDEN,
"Non-managers may not remove any viewer other than themselves or a group which they manage.");
}
}
}
// the request has passed all the rules that govern non-manager users
// so we'll grant an administrative session
session = session.getRepository().loginAdministrative();
releaseSession = true;
}
List<AclModification> aclModifications = Lists.newArrayList();
for (String addManager : addManagers) {
if ((addManager.length() > 0) && !managerSet.contains(addManager)) {
managerSet.add(addManager);
AclModification.addAcl(true, Permissions.CAN_MANAGE, addManager, aclModifications);
}
}
for (String removeManager : removeManagers) {
if ((removeManager.length() > 0) && managerSet.contains(removeManager)) {
managerSet.remove(removeManager);
AclModification.removeAcl(true, Permissions.CAN_MANAGE, removeManager, aclModifications);
}
}
for (String addEditor : addEditors) {
if ((addEditor.length() > 0) && !editorSet.contains(addEditor)) {
editorSet.add(addEditor);
AclModification.addAcl(true, PERMISSION_EDITOR, addEditor, aclModifications);
}
}
for (String removeEditor : removeEditors) {
if ((removeEditor.length() > 0) && editorSet.contains(removeEditor)) {
editorSet.remove(removeEditor);
AclModification.removeAcl(true, PERMISSION_EDITOR, removeEditor, aclModifications);
}
}
for (String addViewer : addViewers) {
if ((addViewer.length() > 0) && !viewerSet.contains(addViewer)) {
viewerSet.add(addViewer);
AclModification.addAcl(true, Permissions.CAN_READ, addViewer, aclModifications);
}
}
for (String removeViewer : removeViewers) {
removeViewer = removeViewer.trim();
if ((removeViewer.length() > 0) && viewerSet.contains(removeViewer)) {
viewerSet.remove(removeViewer);
if (!managerSet.contains(removeViewer)) {
AclModification.removeAcl(true, Permissions.CAN_READ, removeViewer, aclModifications);
}
}
}
updateContentMembers(session, pooledContent, viewerSet, managerSet, editorSet);
updateContentAccess(session, pooledContent, aclModifications);
this.authorizableCountChanger.notify(
UserConstants.CONTENT_ITEMS_PROP,
addViewers,
addEditors,
addManagers,
removeViewers,
removeEditors,
removeManagers);
response.setStatus(SC_OK);
} catch (StorageClientException e) {
LOGGER.error(e.getMessage());
response.sendError(
SC_INTERNAL_SERVER_ERROR, "StorageClientException: " + e.getLocalizedMessage());
} catch (AccessDeniedException e) {
response.sendError(
SC_FORBIDDEN,
"Insufficient permission to update content members at " + request.getRequestURI());
} finally {
if (session != null && releaseSession) {
try {
session.logout();
} catch (ClientPoolException e) {
LOGGER.error(e.getMessage());
}
}
}
}