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Re: Pass varible with out URL and SESSION [message #179985 is a reply to message #179983]

Mon, 24 December 2012 22:26

Denis McMahon
Messages: 634
Registered: September 2010

Karma:

Senior Member

On Mon, 24 Dec 2012 13:56:17 -0500, Jerry Stuckle wrote:

> On 12/24/2012 11:40 AM, Denis McMahon wrote:
>> On Mon, 24 Dec 2012 08:30:45 -0500, Jerry Stuckle wrote:
>>
>>> On 12/24/2012 4:30 AM, Andy wrote:
>>>> > well exactly. There are only three ways to keep track of a browser
>>>> > state between pages: cookie, GET or POST.
>>>>
>>>> In the words of Yoda "There is another"...
>>>>
>>>> You guys won't like it but I thought it worth mentioning that you can
>>>> also use a hidden frame and store any variable to be passed back to
>>>> the next content page.
>>
>>> Which still comes back in the GET or POST values, as applicable.
>>
>> I think Andy is suggesting a client side method that uses javascript to
>> store a variable in a higher level frame between page loads. This could
>> be used to pass data between the javascript code running in two pages
>> on a client without passing the data through the server.
>>
>> It's a similar approach to using js to create a cookie on the client
>> side that can be read by js in another page on the client side, to pass
>> data between pages on the client side without relying on the server.
>>
>> However, as we already agreed (I think), until we have more information
>> about what the OP actually wants to do, and specifically whether he's
>> trying to pass state information between pages on the client or on the
>> server, it's a bit pointless debating the ins and outs of the various
>> possible methods.

> But it's still passed back to the server via POST or GET. All he's
> suggesting is a different way of storing it on the client (i.e. instead
> of a hidden field in a form).

No, he's suggesting a way to pass data from a client side script running
in one page on the client to a client page script running in another page
on the client *without* going back through the server at all.

Scenario:

A frameset has javascript methods set( param, value ) and get(param)

Any pages loaded into a subframe of that frameset, from the same host (xss
restrictions will apply if the page is from a different host) can call
the set and get methods in the parent frameset to store / retrieve values
that will never be passed through the server.

I once wrote a shopping catalogue that ran 100% in client side javascript
doing this, for someone who was running on a hosting provider that only
made a basic mailform cgi available. Customers could browse the
catalogue, pick out their goods, and then mail their shopping list to the
company using the mailform cgi.

The (mom & pop) company would then contact the customer, confirm the
requirement, put it on their van and deliver it, collecting payment when
they delivered.

The only time that any "data" apart from plain page requests got sent to
the server was after the complete order had been assembled, when it was
sent to the mailform cgi on the server, and that could have been avoided
by generating a mail uri that would have launched the default mail
application on the client computer and populate the message text.

The same can be done with a javascript cookie, although the cookie in
that case does get sent to the server the server just discards it, but
the javascript in different pages from the same host (again security
constraints apply) on the client can read and write the cookie and use it
to pass data values between themselves.

--
Denis McMahon, denismfmcmahon(at)gmail(dot)com

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[Message index]

		Pass varible with out URL and SESSION By: Biju S on Sat, 22 December 2012 09:18
		Re: Pass varible with out URL and SESSION By: M. Strobel on Sat, 22 December 2012 09:24
		Re: Pass varible with out URL and SESSION By: Luuk on Sat, 22 December 2012 10:05
		Re: Pass varible with out URL and SESSION By: M. Strobel on Sat, 22 December 2012 10:37
		Re: Pass varible with out URL and SESSION By: M. Strobel on Sat, 22 December 2012 10:40
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Sat, 22 December 2012 12:29
		Re: Pass varible with out URL and SESSION By: Twayne on Sat, 22 December 2012 17:21
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Sat, 22 December 2012 22:55
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Sat, 22 December 2012 23:03
		Re: Pass varible with out URL and SESSION By: Luuk on Sun, 23 December 2012 07:56
		Re: Pass varible with out URL and SESSION By: houghi on Sun, 23 December 2012 14:25
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Sun, 23 December 2012 16:21
		Re: Pass varible with out URL and SESSION By: Twayne on Sun, 23 December 2012 17:27
		Re: Pass varible with out URL and SESSION By: M. Strobel on Sun, 23 December 2012 17:45
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Sat, 22 December 2012 13:15
		Re: Pass varible with out URL and SESSION By: Scott Johnson on Sat, 22 December 2012 13:26
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Sat, 22 December 2012 14:43
		Re: Pass varible with out URL and SESSION By: Twayne on Sat, 22 December 2012 17:23
		Re: Pass varible with out URL and SESSION By: M. Strobel on Sat, 22 December 2012 20:55
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Sat, 22 December 2012 22:56
		Re: Pass varible with out URL and SESSION By: M. Strobel on Sun, 23 December 2012 17:02
		Re: Pass varible with out URL and SESSION By: Gregor Kofler on Sat, 22 December 2012 23:43
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Sun, 23 December 2012 00:09
		Re: Pass varible with out URL and SESSION By: Andy on Mon, 24 December 2012 09:30
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Mon, 24 December 2012 13:30
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Mon, 24 December 2012 16:40
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Mon, 24 December 2012 18:56
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Mon, 24 December 2012 22:26
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Mon, 24 December 2012 23:30
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Tue, 25 December 2012 01:23
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Tue, 25 December 2012 12:21
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Tue, 25 December 2012 13:41
		Re: Pass varible with out URL and SESSION By: Peter H. Coffin on Tue, 25 December 2012 16:14
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Tue, 25 December 2012 19:25
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Wed, 26 December 2012 01:21
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Wed, 26 December 2012 01:36
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Wed, 26 December 2012 02:21
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Wed, 26 December 2012 02:47
		Re: Pass varible with out URL and SESSION By: Andy on Tue, 25 December 2012 10:03
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Tue, 25 December 2012 10:31
		Re: Pass varible with out URL and SESSION By: J.O. Aho on Tue, 25 December 2012 12:10
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Tue, 25 December 2012 13:23
		Re: Pass varible with out URL and SESSION By: J.O. Aho on Tue, 25 December 2012 15:08
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Tue, 25 December 2012 13:44
		Re: Pass varible with out URL and SESSION By: Andy on Thu, 27 December 2012 09:22
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Tue, 25 December 2012 13:42
		Re: Pass varible with out URL and SESSION By: adrian on Mon, 24 December 2012 13:41
		Re: Pass varible with out URL and SESSION By: Scott Johnson on Mon, 24 December 2012 14:23
		Re: Pass varible with out URL and SESSION By: adrian on Mon, 24 December 2012 15:43
		Re: Pass varible with out URL and SESSION By: M. Strobel on Mon, 24 December 2012 16:07
		Re: Pass varible with out URL and SESSION By: J.O. Aho on Mon, 24 December 2012 21:36
		Re: Pass varible with out URL and SESSION By: The Natural Philosoph on Mon, 24 December 2012 23:25
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Tue, 25 December 2012 01:25
		Re: Pass varible with out URL and SESSION By: Twayne on Sun, 23 December 2012 17:37
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Sun, 23 December 2012 18:36
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Sat, 22 December 2012 14:32
		Re: Pass varible with out URL and SESSION By: Denis McMahon on Sat, 22 December 2012 18:09
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Sat, 22 December 2012 18:45
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Sat, 22 December 2012 13:25
		Re: Pass varible with out URL and SESSION By: Gregor Kofler on Sat, 22 December 2012 16:35
		Re: Pass varible with out URL and SESSION By: email.nandkishore on Sat, 22 December 2012 17:51
		Re: Pass varible with out URL and SESSION By: Biju S on Tue, 25 December 2012 15:20
		Re: Pass varible with out URL and SESSION By: Jerry Stuckle on Tue, 25 December 2012 16:40

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