[development] Rules action to impersonate a user

[Earnie Boyd]

You "think" wrongly.  A static variable has local scope to the
function declaring the static variable.

On Mon, Jan 21, 2013 at 11:03 AM, Lluís Forns <enboig at gmail.com> wrote:
> I think static are also available to other functions, use them to store
> cached information across my code and they work.
>
>
> 2013/1/21 Darren Oh <darrenoh at sidepotsinternational.com>
>>
>> Static variables are only saved for a single function. Global variables
>> are available to all functions during a single page request. Session
>> variables are available to all page requests during a session.
>>
>> On Jan 21, 2013, at 10:08 AM, Lluís Forns wrote:
>>
>> Darren, thanks for the link. What is the difference between using global
>> or static to save the data?
>>
>>
>>
>> 2013/1/21 Lluís Forns <enboig at gmail.com>
>>>
>>> My code was from a module where impersonation recursively could happen,
>>> this is why I use a stack to save user state. I am also saving it to session
>>> and not using a static variable because I may uses batch functions.
>>>
>>> But I see some problems right now:
>>> - To be safe impersonation should be saved into static variables (and
>>> "using session_save_session(FALSE);" ), so if anything goes wrong, $user is
>>> not afected.
>>> - If I want to be able to execute every Rules action in a batch, I need
>>> to change user "per action"
>>>
>>> Any idea of how to "inject" code before and after a rule action?
>>>
>>>
>>> 2013/1/21 Walt Daniels <wdlists at gmail.com>
>>>>
>>>> We do the latter simple trick in our store code so we can show people
>>>> the member prices. We have a dummy id that is a member so we switch to it,
>>>> pick up the price and use it so we can show both member and non-member
>>>> prices on the screen.
>>>>
>>>>
>>>> On Mon, Jan 21, 2013 at 9:18 AM, Christian López Espínola
>>>> <penyaskito at computer.org> wrote:
>>>>>
>>>>> Haven't tested your code, but maybe you want to take a look at
>>>>> masquerade_switch_user and masquerade_switch_back:
>>>>> http://drupalcode.org/project/masquerade.git/blob/HEAD:/masquerade.module.
>>>>>
>>>>> And if the impersonation is only for the given request, maybe just
>>>>>
>>>>>  global $user;
>>>>>  $previous = $user;
>>>>>  $user = user_load($uid);
>>>>> // Do your stuff.
>>>>>  $user = $previous;
>>>>>
>>>>> would work.
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Jan 21, 2013 at 10:37 AM, Lluís Forns <enboig at gmail.com> wrote:
>>>>>>
>>>>>> Some of my scheduled task needs to run as the user who triggered them
>>>>>> (not anonymous neither admin); so I thought of writing two actions:
>>>>>> - One to impersonate a user, which will receive uid as an argument.
>>>>>> - Another to undo the impersonate.
>>>>>> All the called actions should be between them.
>>>>>>
>>>>>> Anybody see any fault in this idea or the actions code?
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> function wu_action_impersonate($uid) {
>>>>>>   global $user;
>>>>>>   if (!array_key_exists('wu_action_impersonate', $_SESSION)) {
>>>>>>     $_SESSION['wu_action_impersonate'] = array();
>>>>>>   }
>>>>>>   array_push($_SESSION['wu_action_impersonate'], $user);
>>>>>>   session_save_session(FALSE);
>>>>>>   $user = user_load($uid);
>>>>>>   user_load($uid);
>>>>>> }
>>>>>>
>>>>>> function wu_action_unimpersonate() {
>>>>>>   global $user;
>>>>>>   if (array_key_exists('wu_action_impersonate', $_SESSION)) {
>>>>>>     if (!empty($_SESSION['wu_action_impersonate'])) {
>>>>>>       $user = array_pop($_SESSION['wu_action_impersonate']);
>>>>>>     }
>>>>>>     if (empty($_SESSION['wu_action_impersonate'])) {
>>>>>>       unset($_SESSION['wu_action_impersonate']);
>>>>>>     }
>>>>>>   }
>>>>>>   session_save_session(TRUE);
>>>>>> }
>>>>>>
>>>>>> --
>>>>>> *Ser freak no és imprescindible per ser informàtic, però ajuda.
>>>>>> *La vida no ha de ser feliç, ha de ser plena.
>>>>>> *Abans d'imprimir aquest missatge, pensa en el medi ambient.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Cheers,
>>>>>
>>>>> Christian López Espínola <penyaskito AT computer DOT org>
>>>>> http://twitter.com/penyaskito | http://penyaskito.com
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> *Ser freak no és imprescindible per ser informàtic, però ajuda.
>>> *La vida no ha de ser feliç, ha de ser plena.
>>> *Abans d'imprimir aquest missatge, pensa en el medi ambient.
>>
>>
>>
>>
>> --
>> *Ser freak no és imprescindible per ser informàtic, però ajuda.
>> *La vida no ha de ser feliç, ha de ser plena.
>> *Abans d'imprimir aquest missatge, pensa en el medi ambient.
>>
>>
>
>
>
> --
> *Ser freak no és imprescindible per ser informàtic, però ajuda.
> *La vida no ha de ser feliç, ha de ser plena.
> *Abans d'imprimir aquest missatge, pensa en el medi ambient.



-- 
Earnie
-- https://sites.google.com/site/earnieboyd