On 11/29/2011 6:28 AM, Al wrote:
> On 11/29/2011 7:40 AM, Nilesh Govindarajan wrote:
>> On Tue 29 Nov 2011 01:34:08 PM IST, Andreas wrote:
>>> Hi,
>>> is there a most advisable way to store db-passwords of an open
>>> user-session?
>>> As far as I get it, a common login strategy is to let the user login
>>> by name&password, check it, store a login=TRUE as php-session variable
>>> and later use a common dbuser+pw to query data provided "login" is TRUE.
>>> This way one wouldn't have to store the users pw or actually the user
>>> wouldn't have a real db-account but rather an application account.
>>> Is this really better or equal than using real db-accounts?
>>> Should I rather store the db-credentials in a session or cookies?
>>> Session is vulnerable as any host-user could look into /tmp.
>>> This would generally be a trusted few though.
>>> On the other hand cookies could be manipulated by the user or at least
>>> be spied upon on the way between user and web-host every time the
>>> credentials are needed for a query.
>> What exactly do you mean by db-account?
>> I didn't understand your question, but this is what I do in my
>> applications- When the user submits the login form, validate POST data
>> (for mischievous stuff) and check if username&  password query works
>> out successfully. If it does, store a session variable login=true and
>> let the user work on the private parts of the site.
>> The cookie essentially, contains just the session id. I never use
>> cookies to store data, only sessions.
>> I also add ip and user-agent filtering to my auth systems.
> Sounds like $_SESSION buffer is what you need. I use the buffer extensively in
> most of my designs.

It seems to me that the OP isn't asking where to store it, s/he is asking what
to store.

I would suggest storing only the SESSION ID in the cookies.  In most setups,
this is done automatically.

Then in the sessions file place only the information that will allow you to
identify the individual in question.

In some cases, I have seen were the first step is followed above, but then
rather the just the identifiable information in the session, one would grab all
the account details and place this information in the session instead.  The only
benefit I see here is the within future page requests, you don't have to hit the
DB for the account details, they are in a session file that you already had to
load into memory.  The drawback to this approach is that all the account details
are in a file on the file system that could (in some situations) be read by
other system user accounts.


Jim Lucas


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