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Anatoli Kazatchkov added a comment - 30/Mar/08 04:43 AM
I guess there is also a possibility of circular references like A -> B -> C -> A.
Hi Team,
We had faced this problem and it had caused our production system to go down every 10 to 15 mins. This needs to be fixed asap. We would request 2 alternatives A prompt fix/ patch would be very helpful. Thanks and Regards Hi Team,
Could you please look into this issue ASAP, any update on this issue would be very helpful. Please let us know if any update on this issue ASAP. Best Regards Hi Cisco,
We're going to tackle this first thing tomorrow. Assuming the diagnosis is correct, we should have a fix for you shortly. Thanks for working with us on this. Cheers, I've attached a build of the calendar plugin. It contains a fix that will disallow the creation of subscriptions that refer to calendars on the same Confluence page as the one you're using. It is unchanged from the latest released version of the plugin otherwise.
Would you mind trying this in your Confluence install and confirming whether or not it addresses the issue? Thanks! Hi Ben,
We are getting an error while installing the plugin attached to the case. I have the uploaded the screenshot of the error. Please could you look into the same and give us the updated plugin ASAP. Let me know if u need any other inputs from us. Thanks and Regards Hi,
I am the original reporter for this problem. As stated at the ticket, we are using Confluence 2.2.6a, and getting error as Cisco is having. Registers the iCalendar handler. I'm looking at the problem; I'll post an update here when I have more news.
There was an incompatibility in the plugin API between Confluence 2.2.6a and 2.5.8 (which is where I was testing). The attachment called calendar-plugin-2.1.13.jar is from the same 2.1.13 source reported in the original issue and should perform properly on Confluence 2.2.6a. Soobaek, please let me know if it fixes your issue.
Cisco-Wiki, I'm investigating your issue based on your screenshot and will update you shortly. Thanks! Cisco-Wiki,
The problem you're having is due to an incompatibility between Lucene 1.9.1, which ships with Confluence 2.5.8, and Lucene 2.2.0, which began shipping with Confluence 2.7. Can you confirm for me that the screenshot came from Confluence 2.5.8 and that it's using the same version of lucene (1.9.1-atlassian) that it shipped with? Ben,
It seems like working, but want to confirm one thing. When I subscribe itself page, I get the following error message. Unable to read the calendar: Error at line 1: Expected [BEGIN], read [<!DOCTYPE HTML PUBLIC ] Is it right one you have placed to resolve this issue? Thank you very much for your help! Hi Ben,
Yes, we are using confluence 2.5.8 and it is using the same lucene-core-1.9.1-atlassian.jar Please let me know the fix/ patch for the problem. Let me know if you ned any other information. Thanks and Regrads Cisco-Wiki,
I've attached another snapshot of the plugin. I've also verified that it installs correctly on my copy of Confluence 2.5.8. Can you try it out and let me know the results? Thanks, Ben,
Could you please confirm my question as well? Soobaek,
After rereading your question, I'm puzzled. The patched plugin disallows subscriptions to a calendar on the same Confluence page. But you're describing taking the page URL itself and trying to subscribe to that. Doing so definitely is an error, but it doesn't lead to any kind of infinite recursion for me in my testing with any version of the plugin. Are you saying that using the page's URL used to cause a hang for you and no longer does when using the snapshot I provided? Ben,
yes it did. If you click on the name of the calendar on the right side of the page, you'll see a link that says "Subscribe". That link is an automatically-generated webcal resource that you can use to subscribe to updates in that calendar from other webcal-capable applications like Sunbird, Evolution, Outlook, etc. The problem that I thought you were having was that if you created a subscription using the "Add Calendar" to that generated webcal resource from the original calendar an infinite regression would result. I was able to reproduce that problem in my testing. With the patch, this is now disallowed with an appropriate javascript error message.
Okay, Thanks Ben.
We were using 2.1.13-h version. further problem...
Subscribing itself page url, as I mentioned before, threw the error upon adding it. However, by going back to that page again, it's getting recursive error and bring the system down again. So it seems like it's not fixed yet. I'll investigate further. Cheers for helping us track this down.
Ben,
Thank you for your support here. Thank you! Hi Ben,
Please let us know whether the current bug have been fixed in this version(calender-plugin-2.1.13). If it has been fixed, Should we install it? Best Regards, I've been having trouble reproducing the reported errors. My procedure is as follows:
1) create a new page a) the URL of the page itself (http://machine/confluence/display/SPACE 6) finally pressing the "Add" button. The patch I created disallows 'b'. I cannot reproduce any crash or hang by doing 'a', as Soobaek apparently can. It seems that Cisco-Wiki is having the same issue 'a', but I cannot reproduce it in their version of Confluence either. The attached fixes are for 'b', but since I can't yet find what is causing 'a', they are unlikely to address that problem. EDIT: I will see if I can detect and prevent 'a' from happening; even if I can't reproduce it properly, it will still help everyone who is suffering from this problem. I've tested a fix for scenario 'a' as outlined above. This plugin was confirmed to work on Confluence 2.5.2 and should also work fine on 2.5.8.
This build of 2.1.13 is for Confluence 2.2.6a. Please test them and let me know if it solves your problem.
Ben, thanks for your effort here.
Have you tested with to PAGE URL? not only upto space level? /display/space/Home ? also you can add it without problem, but when you revisit the page again, the problem starts... not sure if you would need to restart the application or not. I tested it by copying and pasting the URL directly from the browser address bar into the URL text field. The code only checks for exact matches. I'm happy to change it to perform such checks.
If you do what I've described, do you get a javascript error, or does it allow you to add the calendar anyway? EDIT: Sorry, I misunderstood. The code checks to the page level, not just the space level. Ben,
I am able to finish all those step and it gets me an error on the calendar saying However, once I leave that page and come back, the problem starts and never be able to get to that page with the calendar. As you describe, if you can still check such event and prevent it from happening, I am happy to test it out on my end. Again, it's for version 2.1.13. Thank you! Soobaek,
My apologies – there was a bug in the 2.1.13 version. I've removed that one from this issue and attached another one. I've verified that it works as advertised on my Confluence 2.2.6a instance. Please try it and let me know. Hi Team,
We are facing an issue when click on 'Subscribe' link of a calendar it goes to the below url and it is showing the error "Page cannot be displayed". webcal://wiki-dev.cisco.com/confluence/plugins/calendar/ical/dc.action?pageId=25133057&cid=myCalendar&scid=1EZY0MC0K2LECOQV04TLY5DD9XAP1PCE Please look into the issue and let us know how to proceed. Thanks & Regards, Hi Ben,
We have also try to replace the word 'webcal://' to 'http://' in the below url: webcal://wiki-dev.cisco.com/confluence/plugins/calendar/ical/dc.action?pageId=25133057&cid=myCalendar&scid=1EZY0MC0K2LECOQV04TLY5DD9XAP1PCE Using 'http://' it is showing an error as display in the Calender Issue doc. Please see the attached file. This issue need to be fixed asap, any update would be helpful. Thanks & Regards, Cisco-Wiki,
Is this problem related to the subscription problem we've been addressing in this issue (did it start appearing only with one of the snapshots I've provided) or is it a new problem you've found? If it's a new problem, you should open another issue for it here. If it's related, can you tell me how you noticed the problem and what you expected to happen? I'm not able to reach that calendar link either. Hi Ben,
As we mentioned in case description, it is the same issue that When we click on 'Subscribe' link of a calendar it give its own URL as a target(see the below targeted url), an infinite loop results which brings down our Confluence wiki. This is our main issue. webcal://wiki-dev.cisco.com/confluence/plugins/calendar/ical/dc.action?pageId=25133057&cid=myCalendar&scid=1EZY0MC0K2LECOQV04TLY5DD9XAP1PCE The things we did:
Now we are expecting that this issue should be resolved ASAP or if it is a bug then let us know how to disable the 'Subscribe' link from the calendar. Please update the case ASAP. Thanks & Regards, Cisco-Wiki,
In order for me to diagnose the error more effectively, can you attach your Confluence log to this issue? I'd like to see what the errors and stack traces are when you try to load the plugin. Hi Team,
As per your request I have attached the logs(Catalina.out_29thApr) of errors. You can find the time of errors in the attached logs itself. Please let us know if want any information from our side. We need to fix this issue ASAP. Please help us to achieve the same. Thanks & Regards, Wiki-Support Team(M) Thanks for sending that. I'll review it and advise you further.
I've attached a fresh build of the plugin under the version 2.6.2-SNAPSHOT which I've also confirmed runs correctly in a standalone Confluence 2.5.8 instance. Please try it and report results. If it fails again, please attach the server log captured during the failure.
Thanks again for your help in resolving this. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bug
Resolved
Critical
Calendar plugin doesn't check whether it's referring to itself
