[development] Rules action to impersonate a user

[Lluís Forns]

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.
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