cmsmanagerslideimpl.java

jetspeed源代码

			Vector permissions = new Vector();

			while (e.hasMoreElements())
			{
				org.apache.slide.security.NodePermission node =
					(org.apache.slide.security.NodePermission) e.nextElement();
				Permission p = (Permission) CmsFactory.getCmsOmInstance("Permission");
				p.setAction(node.getActionUri());
				p.setActor(node.getSubjectUri());
				p.setInheritable(node.isInheritable());
				p.setNegative(node.isNegative());
				permissions.add(p);
			}

			return permissions;
		}
		catch (Exception e)
		{
			throw new JetspeedCMSException("Impossible to get the security information " + uri);
		}
	}

	/**
	* Grant permission to an uri
	* @param userNode User reference
	* @param uri on which permission has to be set
	* @param userUri User uri reference
	* @param actionUri Action used in the permission (read, modify, write, ...)
	* @param inheritable true if the permission has to be apply on child uri
	* @param negative true if the permission is negative
	*/
	public void grantPermission (String objectUri , String userUri,
								 String actionUri, boolean inheritable,
								 boolean negative)
		   throws JetspeedCMSException
	{

		try
		{

            String userNode = this.getSlideUserNode();
			// Get the SlideToken in function of a SubjectNode string
			SlideToken slideToken = this.getSlideToken( userNode );

			// uri parameter can be point to a linkNode => retrieve its target
			// objectnode
			ObjectNode objectNode = structure.retrieve(slideToken, objectUri, true);

			// uri parameter can be point to a linkNode => retrieve its target
			// objectnode
			SubjectNode subjectNode = (SubjectNode) structure.retrieve(slideToken, userUri, true);

			// Retrieve the Action Node
			ActionNode actionNode = (ActionNode) structure.retrieve(slideToken, actionUri);

			// Grant the permission
			NodePermission perm = new NodePermission(objectNode, subjectNode,
													  actionNode, inheritable,
													  negative);
			security.grantPermission(slideToken, perm);


		}
		catch ( Exception e)
		{
			throw new JetspeedCMSException("Impossible to grant the permission");
		}
	}

	/**
	* Create a new resource in the repository
	* @param userNode User reference
	* @param resource object describing the new resource
	*/
	public void createResource (Resource resource)
		   throws JetspeedCMSException
	{
		try
		{

			String userNode = this.getSlideUserNode();
			
			// Get the SlideToken in function of a SubjectNode string
			SlideToken slideToken = this.getSlideToken( userNode );

			// Create the new resource ( Slide subjectNode )
			SubjectNode subject = new SubjectNode();
			structure.create(slideToken, subject, resource.getUri());

			// ---- Create the new content revision descriptor
			NodeRevisionDescriptor descriptor = (( SlideResource )resource).getDesciptor();
			descriptor.setProperty(this.PROPERTY_CLASS_NAME,
									 resource.getClass().getName());

			if (resource instanceof Catalog)
			{
				// Get content length
				descriptor.setProperty("getcontentlength", new Long(0));

				// Resource type (collection) - use xml element recognize by webdav client
				descriptor.setProperty(new NodeProperty("resourcetype", "<collection/>", true));
			}
			else
			{
				// Get content length
				descriptor.setProperty("getcontentlength", new Long(0));

				// Last modification date
				descriptor.setLastModified(new Date());

				// Etag generation
				String etag = resource.getUri().hashCode() + "_"
								//+ revisionNumber.hashCode() + "_"
							   + descriptor.getContentLength();
				descriptor.setProperty(new NodeProperty("getetag", etag, true));

				descriptor.setProperty(new NodeProperty("getcontenttype", "", true));

				// Resource type (collection or other type of content)
				descriptor.setProperty(new NodeProperty("resourcetype", "", true));

				// Source
				descriptor.setProperty(new NodeProperty("source", "", true));

				// Content Language
				//revisionDescriptor.setProperty("getcontentlanguage", stream., true);

				// Owner
				//String owner = slideToken.getCredentialsToken().getPublicCredentials();
				//descriptorescriptor.setProperty(new NodeProperty("owner", owner, true));

				// For Microsoft tools

				// Is hidden
				NodeProperty property = new NodeProperty("ishidden", "0", "MICROSOFT");
				descriptor.setProperty(property);

				// Is collection
				property = new NodeProperty("iscollection", "0", "MICROSOFT");
				descriptor.setProperty(property);

				// Is read only
				property = new NodeProperty("isreadonly", "0", "MICROSOFT");
				descriptor.setProperty(property);

				// Last accessed
				property = new NodeProperty("lastaccessed", (new Date()).toString(),
											"MICROSOFT");
				descriptor.setProperty(property);
			}

			content.create(slideToken, resource.getUri(), descriptor, null);

		   // Grant permission if needed

			Vector permissions = resource.getPermissions();

			for (Enumeration e = permissions.elements(); e.hasMoreElements();)
			{
				Permission p = (Permission) e.nextElement();
				this.grantPermission(resource.getUri(), p.getActor(),
							  		p.getAction(), p.isInheritable(), p.isNegative());
			}
		}
		catch (Exception e)
		{
			throw new JetspeedCMSException("Impossible to create the content resource");
		}
	}

	/**
	* Create a new resource in the repository with a content stream
	* @param userNode User reference
	* @param resource object describing the new resource
	* @param stream stream which match to the resource content
	*/
	public void createResource (Resource resource, FileItem stream)
		   throws JetspeedCMSException
	{
		try
		{

            String userNode = this.getSlideUserNode();
            
			// Get the SlideToken in function of a SubjectNode string
			SlideToken slideToken = this.getSlideToken( userNode );

			// Create the new resource ( Slide subjectNode )
			SubjectNode subject = new SubjectNode();
			structure.create(slideToken, subject, resource.getUri());

			// Create the new content revision descriptor
			NodeRevisionDescriptor descriptor = ((SlideResource) resource).getDesciptor();
	   		descriptor.setProperty(this.PROPERTY_CLASS_NAME,
								   resource.getClass().getName());

	   		// Get content length
	   		descriptor.setProperty("getcontentlength", new Long(stream.getSize()));

	   		// Last modification date
	   		descriptor.setLastModified(new Date());

	   		// Etag generation
	   		String etag = resource.getUri().hashCode() + "_"
						   //+ revisionNumber.hashCode() + "_"
						   + descriptor.getContentLength();
	   		descriptor.setProperty(new NodeProperty("getetag", etag, true));

	   		String contentType = stream.getContentType();
	   		descriptor.setProperty(new NodeProperty("getcontenttype", contentType, true));

	   		// Resource type (collection or other type of content
	   		descriptor.setProperty(new NodeProperty("resourcetype", "", true));

	   		// Source
	   		descriptor.setProperty(new NodeProperty("source", "", true));

	   		// displayname : use in a webdav client
	   		String displayName = stream.getFileName().substring( stream.getFileName().lastIndexOf("\\")+1 );

	   		descriptor.setProperty(new NodeProperty("displayname",
												    "<![CDATA[" + displayName+ "]]>"));

	   		// Content Language
	   		//revisionDescriptor.setProperty("getcontentlanguage", stream., true);

	   		// Owner
	   		//String owner = slideToken.getCredentialsToken().getPublicCredentials();
	   		//descriptorescriptor.setProperty(new NodeProperty("owner", owner, true));

	   		// For Microsoft tools

	   		// Is hidden
	   		NodeProperty property = new NodeProperty("ishidden", "0", "MICROSOFT");
	   		descriptor.setProperty(property);

	   		// Is collection
	   		property = new NodeProperty("iscollection", "0", "MICROSOFT");
	   		descriptor.setProperty(property);

	   		// Is read only
	   		property = new NodeProperty("isreadonly", "0", "MICROSOFT");
	   		descriptor.setProperty(property);

	   		// Last accessed
	   		property = new NodeProperty("lastaccessed", (new Date()).toString(),
									    "MICROSOFT");
	   		descriptor.setProperty(property);

	   		// Add the content stream
	   		NodeRevisionContent revisionContent = new NodeRevisionContent();
	   		revisionContent.setContent(stream.getInputStream());

	   		// Add all stuff in the slide repository
	   		content.create(slideToken, resource.getUri(), descriptor, revisionContent);

	   		// Grant permission if needed
	   		Vector permissions = resource.getPermissions();

	   		for (Enumeration e = permissions.elements(); e.hasMoreElements();)
	   		{
		 		Permission p = (Permission) e.nextElement();
		 		this.grantPermission(resource.getUri(), p.getActor(),
							  		 p.getAction(), p.isInheritable(), p.isNegative());
	   		}
		}
		catch (Exception e)
		{
			throw new JetspeedCMSException("Impossible to create the content resource");
		}
	}

	/**
	* Create a new link in the repository
	* @param userNode User reference
	* @param link object describing the new link
	*/
	public void createLink (Link link)
		throws JetspeedCMSException
	{
		try
		{
			String userNode = this.getSlideUserNode();
			
			// Get the SlideToken in function of a SubjectNode string
			SlideToken slideToken = this.getSlideToken( userNode );

			ObjectNode resourceNode = (ObjectNode) structure.retrieve(slideToken,
											link.getTargetResourceUri() );
			LinkNode linkNode = new LinkNode();
			structure.createLink(slideToken, linkNode, link.getUri(), resourceNode);
		}
		catch (Exception e)
		{
			throw new JetspeedCMSException("Impossible to get the link");
		}
	}


	// ------------------------------------------------------------------------------------------------
	//
	//  PRIVATE METHODS
	//
	// ------------------------------------------------------------------------------------------------

	/**
	* Create a new SlideToken instance in function
	* of a SubjectNode
	*
	* @param user reference
	* @return a Slide toke object
	*/
	private SlideToken getSlideToken (String userNode)
	{
		CredentialsToken credToken = new CredentialsToken(new String(userNode));

		return new SlideTokenImpl(credToken);
	}
	
	/**
	*  Populate the a catalog whith its childrens
	* 
	*
	* @param userNode user node reference
	* @param children Collection which match to children uri 
	* @param catalog root catalog
	* @param withSubCatalog if true, retrieve sub-catalog nodes
	* @param withContent if false, retrieve only catalogs
	* @param numberOfLevels number of level to retrieve 
	*         (-1 : retrieve the complete graph from the root "catalog"
	* 
	*/	

	private void getChildren(String userNode, Enumeration children,
							 Catalog catalog, boolean withSubCatalog,
							 boolean withContent,int numberOfLevels)
		throws JetspeedCMSException
	{

		if (Log.getLogger().isDebugEnabled())
		{
			Log.debug("Slide.getChildren for : " + catalog.getUri());
		}

		if (numberOfLevels != -1)
		{
			numberOfLevels--;
		}

		while (children.hasMoreElements())
		{
			String childUri = (String) children.nextElement();

			if (Log.getLogger().isDebugEnabled())
			{
				Log.debug("Slide.getChildren -  Child found : " + childUri);
			}

		   try
		   {
				Resource resource = this.getResource(childUri);

				if (resource instanceof Catalog)
				{
					if (withSubCatalog)
					{
						// numberOfLevels == -1 means all levels in the repository tree
						if ((numberOfLevels == -1) || (numberOfLevels > 0))
						{
							int tmp = numberOfLevels;
							this.populateCatalog((Catalog) resource,
								  				  withSubCatalog,
								  				  withContent,
								  				  numberOfLevels );
						}

						if (Log.getLogger().isDebugEnabled())
						{
							Log.debug("Slide.add Children : " + resource.getKey());
						}

						catalog.addResource( resource.getKey(), resource);
					}
				}
				else
				{
					if (withContent)
					{
						catalog.addResource(resource.getKey(), resource);
					}
				}
			}
			catch (JetspeedCMSException e)
			{
				// if the exception is AccessDenied : continue the loop for other children
				// else it is a more serious exception => throws the exception to the caller
				if (!e.isAccessDenied())
				{
					throw new JetspeedCMSException("Impossible to get the children information ");
				}
			}
		}
	}


	/**
	*  Return the Slide User node depending of the current Jetspeed user session
	*   
	* @return the slide user node
	*/	
	private String getSlideUserNode()
	{
		
		JetspeedRunData data = ((JetspeedRunDataService) TurbineServices.getInstance()
			                                .getService(RunDataService.SERVICE_NAME))
			                                .getCurrentRunData();
        return Utility.getUserUri(data.getUser().getUserName());
	}
}