RESOLVED: Read only web scripts

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tara_b

Hello,

I have implemented a way to make Alfresco read-only during the time that we back it up, by using a Toggle (http://cedric.bosdonnat.free.fr/wordpress/?p=87).  We have a single server, so i dont have the option of having a slave for backing up.

I can successfully make Alfresco read-only using the above toggling method by scheduling a java app to run, which runs the following code:

       TransactionService myTransactionService = this.services.getTransactionService();
       TransactionServiceImpl serviceAction = (TransactionServiceImpl)myTransactionService;

       boolean status = myTransactionService.isReadOnly();
       if(aToggle && !status)
       {
          //toggle read only
          serviceAction.setAllowWrite(false);
          aMessage = "Alfresco in read-only status";
          System.out.println("Toggling read-only");
       }‍‍‍‍‍‍‍‍‍‍‍

This all works well, however I am using Alfresco as a backend to a Joomla website. Joomla will access various webscripts in Alfresco when a user browses the pages, so the Alfresco webscripts have to be up 24/7. When i have the toggle to read-only, I can run webscripts if they dont contain a .js, however as soon as i run webscript with a .js, i get the following error:

 <status>
  500 
  <name>Internal Error</name> 
  <description>An error inside the HTTP server which prevented it from fulfilling the request.</description> 
  </status>
  <message>Wrapped Exception (with status template): Failed to execute script '/com/moxy/Metadata/metadata.get.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': Read-Write transaction started within read-only transaction</message> 
  <exception>org.alfresco.web.scripts.WebScriptException - Wrapped Exception (with status template): Failed to execute script '/com/moxy/Metadata/metadata.get.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': Read-Write transaction started within read-only transaction</exception> 
  <callstack>org.alfresco.error.AlfrescoRuntimeException: Read-Write transaction started within read-only transaction org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:292) org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:227) org.alfresco.repo.web.scripts.RepoStore$RepoScriptContent$1.doWork(RepoStore.java:906) org.alfresco.repo.web.scripts.RepoStore$RepoScriptContent$1.doWork(RepoStore.java:904) org.alfresco.repo.security.authentication.AuthenticationUtil.runAs(AuthenticationUtil.java:437) org.alfresco.repo.web.scripts.RepoStore$RepoScriptContent.getInputStream(RepoStore.java:902) org.alfresco.repo.web.scripts.RepositoryScriptProcessor$RepositoryScriptLocation.getInputStream(RepositoryScriptProcessor.java:163) org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:119) org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:263) org.alfresco.repo.web.scripts.RepositoryScriptProcessor.executeScript(RepositoryScriptProcessor.java:108) org.alfresco.web.scripts.AbstractWebScript.executeScript(AbstractWebScript.java:800) org.alfresco.web.scripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:90) org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:319) org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:320) org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:227) org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:368) org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:390) org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:273) org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:261) org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:139) org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116) ‍‍‍‍‍‍‍‍

My web script has the following authentication:

 <authentication>guest</authentication>
<transaction>none</transaction>‍‍

The Web scripts are not writing to Alfresco or the database - they are actually read-only. Is there a way to overwrite the safety check which causes the error above?  Thanks in advance for your help!

Tara

zaizi

Can you move your web script out of the repository and in the class path on the file system and try that? See http://wiki.alfresco.com/wiki/Web_Scripts#Deciding_Where_to_Place_Web_Script_Implementation for details.