Provide a backtrace if user 1 hits 'access denied'
salvis - October 21, 2009 - 14:12
| Project: | Devel |
| Version: | 6.x-1.x-dev |
| Component: | devel |
| Category: | feature request |
| Priority: | normal |
| Assigned: | Unassigned |
| Status: | needs review |
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Description
I just had user 1 getting an 'access denied' error. This shouldn't happen by definition, but finding out where it came from was a bit of a pain, so I wrote the following function:
<?php
/**
* Implementation of hook_watchdog().
*
* If an 'access denied' error is logged for user 1, then something is
* seriously wrong: provide a backtrace so the user can see where the
* error is generated.
*/
function devel_watchdog($log_entry) {
if ($log_entry['type'] == 'access denied' && $log_entry['user']->uid == 1) {
$trace = debug_backtrace();
// Pop the stack up to the drupal_access_denied() call.
while (isset($trace[0]) && (empty($trace[0]['function']) || $trace[0]['function'] != 'drupal_access_denied')) {
array_shift($trace);
}
dsm($trace, t('ACCESS DENIED error generated for user 1, backtrace'));
}
}
?>Could this be generally useful enough to go into Devel? I don't think it would need a setting to enable/disable, it could be active all of the time.
(Would be nice if we could commit #498028: kprint_r omits name on krumo output so that the introductory line ($name in dsm()) is actually displayed...)
#1
Hi salvis, I am experiencing a problem where user 1 is getting access denied while trying to login. I would like to try this function you have written but I am not familiar with the devel module, could you let me know where this function should be placed?
Cheers,
Robert
#2
Anywhere in the devel.module file, e.g. append it at the end.
Let us know how it goes.
#3
Thanks salivs.
It turns out my error is coming through with a uid of 0, had to drop the test on uid in your if to see that. I've pasted the $log_entry below. I don't get any traceback information printed to output. The problem is this: when admin tries to login using Firefox they are logged in (and a session created), but then upon redirect to user/1, they get the access denied.
Array
(
[type] => access denied
[message] => user/1
[variables] =>
[severity] => 4
[link] =>
[user] => stdClass Object
(
[uid] => 0
[hostname] => ::1
[roles] => Array
(
[1] => anonymous user
)
[session] =>
[cache] => 0
)
[request_uri] => http://localhost/jb/user/1
[referer] => http://localhost/jb/user/login
[ip] => ::1
[timestamp] => 1256224300
)
#4
The backtrace is displayed only for users with the 'access devel information' permission.
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