[development] Deleting Cached Permissions

[David Metzler]

The earliest hook avialable to you is hook_init.  I use it  
successfully to require auth for specific pages in my cas module. Be  
careful not to rely on the arg() function.  It is not always defined  
when caching is enabled.

Dave


On Aug 24, 2007, at 11:51 PM, sysop at scbbs.com wrote:

> OK, I've modified the user_access() function to utilize the $reset  
> functionality as described here:  http://www.lullabot.com/articles/ 
> a_beginners_guide_to_caching_data
>
> I use something like user_access('reset', NULL, TRUE) to reset the  
> $perm value in the user_access() function.
>
> However, to make this work, I need to be able to call this function  
> before other modules call user_access(). So, my question now is: in  
> what hook should I put my user_access() reset call in order to make  
> it is always called first before or when loading a node?
>
> Thanks!
>
> -ron
>
> Quoting Moshe Weitzman <weitzman at tejasa.com>:
>
>> it is fine to avoid it with some workaround, ideally you will also
>> submit a patch so next time someone else doesn't have to work around
>> this.
>>
>> On 8/24/07, sysop at scbbs.com <sysop at scbbs.com> wrote:
>>> Yes, that would be perfect.  The problem is that this  
>>> functionality is
>>> currently not in user_access().
>>>
>>> I looked at the php docs and see that this is possible, but the only
>>> way to implement it in user_access() would be to modify the
>>> user.module -- which I'm trying to avoid.
>>>
>>> Quoting Moshe Weitzman <weitzman at tejasa.com>:
>>>
>>> > it is reasonable to add a param to user_access() called $reset  
>>> which
>>> > if true, kills $perm at beginning of function. this is how other
>>> > static caches get rebuilt on demand in drupal.
>>> >
>>> > On 8/23/07, Ron Parker <sysop at scbbs.com> wrote:
>>> >> I wrote this list before on this issue: http://drupal.org/node/ 
>>> 166557;
>>> >> but, received no response.  Decided to re-pose the question.
>>> >>
>>> >> The problem is that I'm getting the "access denied" error on  
>>> file upload
>>> >> even though the file is uploaded. This is because user_access 
>>> ('upload
>>> >> files') is failing for a user who, in fact, has this  
>>> permission in this
>>> >> particular group.
>>> >>
>>> >> I did the following:
>>> >>
>>> >> 1. Modified user_access() function to NOT cache the $perm  
>>> permissions.
>>> >> 2. Deleted records from cache_menu.
>>> >>
>>> >> I don't know which (if not both) of the above did the trick,  
>>> but it
>>> >> resolved the issue.  That means (I think) it's a cache problem.
>>> >>
>>> >> I know I can use cache_clear_all() to delete items from  
>>> cache_menu.
>>> >> However, I would like know if it's possible to delete/modify  
>>> the static
>>> >> $perm variable that is set in the user_access() function  
>>> OUTSIDE of that
>>> >> function?
>>> >>
>>> >> That is:  The user_access() function sets a static variable  
>>> $perm =
>>> >> array().  Permissions are cached in this variable.  Can I   
>>> create a
>>> >> function in my module that can update the $perm variable that  
>>> is set in
>>> >> the user_access() function of the node.module?
>>> >>
>>> >> Thanks for any assistance.
>>> >>
>>> >> -ron
>>> >>
>>> >> --
>>> >> Ron Parker
>>> >> Software Creations               http://www.scbbs.com
>>> >> Self-Administration Web Site     http://saw.scbbs.com
>>> >> SDSS Subscription Mgmt Service   http://sdss.scbbs.com
>>> >> Central Ave Dance Ensemble       http://www.centralavedance.com
>>> >> R & B Salsa                      http://www.randbsalsa.com
>>> >>
>>> >>
>>> >
>>>
>>>
>>>
>>>
>>
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