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Pb : Add a ticket to an Alfresco url to avoid logging

sam69

Hello !

I want to provide a link from my webapp, pointing to an Alfresco space or document.
But I want to avoid the user to login again (as the user is already logged on my website).
So the ticket url argument looks like what I need :
http://wiki.alfresco.com/wiki/URL_Addressability#Ticket_URL_Argument

I manage to get a ticket through webservice, and append it to my url, but it doesn't work.
Here is my test code :

//get ticket :
    String ticket = WebServiceFactory.getAuthenticationService().startSession("admin", "admin").getTicket();
    //remove "TICKET_" prefixe and add "?ticket="
    ticket = "?ticket=" + ticket.substring("TICKET_".length());
    String urlDetail = "http://dimension_1:8080/alfresco/navigate/showDocDetails/workspace/SpacesStore/66c17658-01fd-11db-ac8c-fd68b7f6067a" + ticket;
    System.out.println(urlDetail);
    String urlDownload = "http://dimension_1:8080/alfresco/download/attach/workspace/SpacesStore/66c17658-01fd-11db-ac8c-fd68b7f6067a/DojoToolkitInPractice.pdf'+ticket;
    System.out.println(urlDownload);
‍‍‍‍‍‍‍‍‍‍

I got my 2 urls :
http://dimension_1:8080/alfresco/navigate/showDocDetails/workspace/SpacesStore/66c17658-01fd-11db-ac8c-fd68b7f6067a?ticket=fe6b936a-0200-11db-a1da-5f639c2effba
http://dimension_1:8080/alfresco/download/attach/workspace/SpacesStore/66c17658-01fd-11db-ac8c-fd68b7f6067a/DojoToolkitInPractice.pdf?ticket=fe6b936a-0200-11db-a1da-5f639c2effba
Just after, I past it in IE -> I have a servlet exception :

java.lang.IllegalStateException: Impossible de cr?er une sessionapr?s que la r?ponse ait ?t? envoy?e
Translation of the message : Unable to create a session after response has been sent.
org.apache.catalina.connector.Request.doGetSession(Request.java:2206)
   org.apache.catalina.connector.Request.getSession(Request.java:2024)
   org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:831)
   org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:842)
   org.alfresco.web.app.servlet.BaseServlet.redirectToLoginPage(BaseServlet.java:158)
   org.alfresco.web.app.servlet.BaseServlet.servletAuthenticate(BaseServlet.java:129)
   org.alfresco.web.app.servlet.DownloadContentServlet.doGet(DownloadContentServlet.java:108)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

And when I try the urls in firefox, I don't have an exception but I get the alfresco's identification screen. If I login, it show the right page.

I run the 1.4.0 version of alfresco on Windows XP Pro.

Does the ticket argument is working ? Somebody manage to get it work with a ticket obtain from web services ?

Thanks,
Samuel

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Comments

kevinr

I don't think you should remove the TICKET_ prefix - it is part of the string the authentication service expects. Try this again and don't modify the ticket string returned from the service.

Thanks,

Kevin

sam69

Thank you very much Kevin !
It's working now

It was the wiki documentation that lead me wrong :
http://wiki.alfresco.com/wiki/URL_Addressability#Ticket_URL_Argument

/alfresco/download/attach/workspace/SpacesStore/0000-0000-0000-0000/myfile.pdf?ticket=1234567890

I thought that it needs only the number… My mistake.
Maybe I can modify this part of the wiki to make it clear ?

sam69

I have another question :
Is there a timout on tickets life ? Because I will provide a lot of url with different new tickets, and I don't want to overload Alfresco…

sam69

Looking the table 'alf_trasaction', it seems that the ticket are not automatically deleted.
I would like to end the session via webservices, but I can't know when the user don't need it anymore…
Perhaps I don't use the good way to do add a ticket to the url. Is there somewhere an example of code doing that ?

sam69

If we don't close the transaction manually, the transaction is never deleted…
So I manage to store the open transactions and close them where the user logout of my application.
But a session time out on alfresco would be great 😉

bindiya

Hi

I try to open document from alfresco content server in new window of my remote application , but when i click on the following link, the window opens with login page of alfresco. Even while i have provided the ticket to the url, it is still asking me to login. And then when i login it dont get to view the document.

http://localhost:8080/alfresco/download/attach/workspace/SpacesStore/4fc1e6e2-9037-11db-974b-c3e825037c09/Guardian%20Form.doc?ticket=TICKET_d00de3b7-91de-11db-bbfd-4d7eed5de30d

Is there anything else am missing?

Thanks,
Bindiya

sam69

Hi

Your url looks ok. It should works…

Are you using alfresco 1.4 ?
Your webservice transaction is still open ?
The UID of the document Guardian Form.doc is correct ? (you can check it in the detail of the document with the alfresco web client)
You can also check the alfresco log file (ex. tomcat/log) to see if there is an exception).

Cheers,
Samuel

bindiya

Thanks for your reply.

Yes am using alfresco 1.4 version.

Can you please elaborate on the question you asked me

Your webservice transaction is still open ?

Thanks,
Bindiya

sam69

If you close the session after getting the ticket, the ticket is no more available.
Ex :

String ticket = WebServiceFactory.getAuthenticationService().startSession("admin", "admin").getTicket();
String urlDownload = "http://dimension_1:8080/alfresco/download/attach/workspace/SpacesStore/66c17658-01fd-11db-ac8c-fd68b7f6067a/DojoToolkitInPractice.pdf'+ticket;
System.out.println(urlDownload);
//If I close the session, the ticket is no more available :
WebServiceFactory.getAuthenticationService().stopSession();
//Here my url doesnt work

So if you want to keep the session open, you must not close the session.

Cheers,
Samuel

bindiya

Thanks Samuel.

It was of great help to me. It works fine now.

Thanks,
Bindiya

sam69

no problem

jtorres

Every day I learn something new :roll: , Alfresco is really a big project. Thanks folks.

lalli

Hi,

Now I opened a first document using the ticket url in my application.
Now there is a link in my first document which is pointing to the document in alfresco (and link has the absolute path of the second document in alfresco) and the user has read permission.

But when I click on the link in the first document it asks me again to login again though I had logged in to alfresco using webservices call to open the first document in my application.

I need this help ASAP.
Thanx in advance.

-Lalli.