[pmwiki-devel] Is EnablePathInfo required for action=$PageUrl in forms?

[Peter Bowers]

It doesn't get any clearer than that!

I will try over the next couple of days to look through the various pages
documenting forms and see if there is a good place to include this new (to
me, at least) information about $EnablePathInfo.

Thanks, as always, for your conscientious and knowledgeable and extremely
helpful contribution, Petko!

-Peter


On Wed, May 8, 2013 at 8:58 PM, Petko Yotov <5ko at 5ko.fr> wrote:

> Peter Bowers writes:
>
>> On the first one (${PageUrl}, get) it does *not* work.
>>
>> On the second one (${PageUrl}, post) it *does* work.
>>
>> On the third one (${ScriptUrl?n={$FullName}, get) it *does* work.
>>
>
> The third method is "post".
>
> Anyways, I have reviewed the standard specifications here:
>
>  http://www.w3.org/TR/html401/**interact/forms.html#submit-**format<http://www.w3.org/TR/html401/interact/forms.html#submit-format>
>  https://developer.mozilla.org/**en-US/docs/HTML/Element/form<https://developer.mozilla.org/en-US/docs/HTML/Element/form>
>
> and it appears that when you use the "get" method, the browser opens a URL
> which is constructed by the "action" attribute of the <form> element, with
> appended "?" then the url-encoded data set. The browsers I tested strip the
> existing query string from the "action", that is the part starting with "?"
> and construct the URL like in the standard.
>
> When PathInfo is enabled, there is no "?..." part in the $PageUrl string,
> and the browsers don't strip anything; later PmWiki will calculate the
> pagename variable from the query string, so it works.
>
> So, when we use a "get" method and when PathInfo is not enabled, we have
> to add the (:input hidden n {$FullName}:) form field. You can use in the
> action attribute either {$PageUrl} or {$ScriptUrl}.
>
> When we use a "post" method (default for PmWiki forms), the standard sets
> a different encoding format and the browser doesn't strip anything from the
> action URL. So it works on your site and on mine.
>
> It is possible that some browsers or browser versions don't strip the
> existing query string, but recent versions of the major browsers seem to
> all strip it when a form is submitted via the "get" method.
>
> Does this reply to your question?
>
>
> Petko
>
>
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