Štítek: Alfresco

I did some other java based webscript. From portlet flash application I need to get information about some user's permissions on object specified by nodeRef. So firstly I tried to do this via JavaScript based webservice, but there are no tools to do this.

 First thing is to create description xml for this service:

As you can see, there are three parameters: u, which specifies userName of user, of which we want to get this information. Parameter  s, which specifies nodeRef of node and finally p, which is optional and specifies one of permissions. If not set, WriteContent permission is used.

Space permissions:

You can find a complete list of all permisions in tomcat/webapps/alfresco/WEB-inf/classes/alfresco/model/permissionDefinitions.xml.

 Now let's write some javacode: I created a class HasRights, which extends AbstractWebScript. Let's have a look into that code

In case of this webScript is called method execute is the first to run (not exactly, setters of this class are called sooner – setAuthenticationComponent() and setPermissionService()) . In this method javax.servlet.http.HttpServletRequest is used for get parameters.

In those steps Node and nodeRef objects are created and currently logged user is setted to wanted user.

After all that a response is printed out. Example of output is following:

I forgot to mention the most importatn step – to define a bean with this webscript. So it looks like this (in web-scripts-application-context.xml):

There is this dialog present in Alfresco (edit-content-properties.jsp), but I wanted to write my own and also describe things I discovered during playing with browseBean.

Let's start with simple bean extending BaseDialogBean with just one getter (and also implementation of abstract methods, ie. getFinishButtonDisabled() or finishImpl()), which returns a Node (org.alfresco.web.bean.repository.Node).

Our bean requies just one property – browseBean, so let's set it in faces config:

 <managed-bean>
       <managed-bean-name>ModifyContentProperties</managed-bean-name>
       <managed-bean-class>cz.shmoula.ModifyContentProperties</managed-bean-class>
       <managed-bean-scope>request</managed-bean-scope>
       <managed-property>
           <property-name>browseBean</property-name>
           <value>#{BrowseBean}</value>
       </managed-property>
   </managed-bean>

For successfully access to getDocument() method an action listener in web client config is needed. Without this listener (and parameter) the methodreturns null, which is really not expecting value :-). So you need to add that listener and parametr into action definition:

<action id="modify_content_properties">
    <label>Editovat vlastnosti</label>
    <image>/images/icons/edit_form.gif</image>
    <action>dialog:modifyContentProperties</action>
    <action-listener>#{BrowseBean.setupContentAction}</action-listener>
    <params>
        <param name="id">#{actionContext.id}</param>
    </params>
</action>

 A JSP page is very simple, just one component from repo.tld library – propertySheetGrid. More information about this componentcan be found in the alfresco devel wiki. I'm using a (default) externalConfig for describing which property to view or not. Information about config service should be found also in developer wiki, so check it out.

 <%@ taglib uri="/WEB-INF/repo.tld" prefix="r" %>
<r:propertySheetGrid id="content-details-contents" value="#{ModifyContentProperties.node}"  externalConfig="true" />

This simple configuration opens a dialog with properties editing inputs, which are filled by information of opened document (or node, if you apply this config – add action – to a Node). BUT you can't save changes. We don't have an OK button method handled. How to get this stuff working? Very simple, Gavinc already wrote this code in org.alfresco.web.bean.content.EditContentPropertiesDialog, so all we need to do is to change a class, which our ModifyContentProperties extending and add overriding methods for default Cancel and OK buttons calls.

 import org.alfresco.web.bean.content.EditContentPropertiesDialog;

public class ModifyContentProperties extends EditContentPropertiesDialog {
    
    @Override
    protected String getDefaultCancelOutcome(){
      return super.getDefaultCancelOutcome() +
                 AlfrescoNavigationHandler.OUTCOME_SEPARATOR +
                 "browse";
    }

    @Override
    protected String getDefaultFinishOutcome(){
       return super.getDefaultFinishOutcome() +
                 AlfrescoNavigationHandler.OUTCOME_SEPARATOR +
                 "browse";
    }

.  .  .

EditContentPropertiesDialog has an editableNode property, which is just a copy of original node, i which we can write our changes. So we need to assign this editableNode to our propertySheetGrid component.

<r:propertySheetGrid id="content-details-contents" value="#{ModifyContentProperties.editableNode}" externalConfig="true"/>

That is all, fast and simple … and now at one place, so you must not spent so much time to looking for how this works as me 🙂

In Alfresco there is no simple way to modify uploading code. You can't just copy and customize org.alfresco.web.bean.content.AddConteneDialog class and /jsp/content/add-content-dialog.jsp ie you can use add-content-dialog.jsp and modify it, but when you try to use AddContentDialog class updated in your project, it doesn't work. I found somewhere on forums (sry, i can't find a link) that add-content-dialog.jsp is just a page snippet and when you coding your own dialog, you must write code for whole page and there is problem with r:upload component. So i'll try to describe my simple solution for QuickUpload content to Alfresco through a Servlet.

My servlet – UploadAnalysisFileServlet – extends javax.servlet.http.HttpServlet, i'm using both methods – GET and POST too. (If you don't know how servlets work, just look at this tutorial) I'm using asynchronous requests and iframe, which work "behind scene" and after success user can handle some more action. Actions are following:

 function sendAjaxRequest(){
    var form = document.getElementById('dialog');
    document.getElementById('dialog:dialog-body:fileDiv').style.visibility = "hidden";

    form.action = '/alfresco/uploadAnalysisFileServlet';
    form.enctype= 'multipart/form-data';
    form.target = 'dialog:dialog-body:upload_target';

    var ifr = document.getElementById('dialog:dialog-body:upload_target');
    ifr.style.visibility = "visible";
    var doc = null;  
    if(ifr.contentDocument)  
      doc = ifr.contentDocument;  // note: this is varying for different browsers!

    var pars = "uploadid=" + document.getElementById("dialog:dialog-body:alfFileId").value;
    var myAjax = new Ajax.Request("/alfresco/uploadAnalysisFileServlet",
         { method: 'get', parameters: pars, onComplete: checkExists });

    form.submit();
    
    form.action = '/alfresco/faces/jsp/dialog/container.jsp';
    form.enctype= 'application/x-www-form-urlencoded';
    form.target = '';
}

 public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException{
       this.fileUploadBean = new FileUploadBean();
       this.uploadId = request.getParameter("uploadid");
       PrintWriter out = response.getWriter();
       out.println("uploadId = "+this.uploadId);
   }

public void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException{
       HttpSession session = request.getSession();
       ServletFileUpload upload = new ServletFileUpload(new DiskFileItemFactory());
      
       List<FileItem> fileItems = upload.parseRequest(request);
       for (FileItem item : fileItems){

           if(item.getFieldName().equalsIgnoreCase("alfFileInput")){
               String filename = item.getName();
               filename = FilenameUtils.getName(filename);
               final File tempFile = TempFileProvider.createTempFile("alfresco", ".upload");
               item.write(tempFile);
               this.fileUploadBean.setFile(tempFile);
               this.fileUploadBean.setFileName(filename);
               this.fileUploadBean.setFilePath(tempFile.getAbsolutePath());

           }
       }
      
       session.setAttribute(FileUploadBean.getKey(uploadId), this.fileUploadBean);
       response.setContentType("text/html");
       PrintWriter out = response.getWriter();
       out.println("<img src="/alfresco/images/icons/deploy_successful.gif"/>");
   }

FacesContext ctx = FacesContext.getCurrentInstance();
FileUploadBean fileBean = (FileUploadBean)ctx.getExternalContext().getSessionMap().

                                get(FileUploadBean.FILE_UPLOAD_BEAN_NAME.concat("-"+this.getFileId()));
       
if(fileBean != null){
    this.file = fileBean.getFile();
    this.fileName = fileBean.getFileName();

 

    NodeRef spaceRef = this.navigator.getCurrentNode().getNodeRef();
    FileInfo fileInfo = this.getFileFolderService().create(spaceRef, fileBean.getFileName(), ContentModel.TYPE_CONTENT);
    NodeRef fileNodeRef = fileInfo.getNodeRef();
               
    Map<QName, Serializable> fileDesc = new HashMap<QName, Serializable>(3, 1.0f);
    fileDesc.put(ContentModel.PROP_TITLE, this.fileName);

 

    ContentWriter writer = this.contentService.getWriter(fileNodeRef, ContentModel.PROP_CONTENT, true);
    writer.putContent(this.file);
}