[pmwiki-users] resize an image during uploading and redirect after uploading

[Petko Yotov]

On 23/08/2021 07:32, Benjamin Grassineau wrote:
> 1. Do you think there is a method to automatically (on the fly) reduce
> the physical size of images uploaded to pmwiki ? I did not find a
> simple solution.

I wouldn't call it "simple", but the recipes AutoThumber and 
ImagesAutoResizing claim to do something like this:

   https://www.pmwiki.org/wiki/Cookbook/AutoThumber
   https://www.pmwiki.org/wiki/Cookbook/ImagesAutoResizing


> 2. I don't understand how the $ UploadRedirectFunction variable works.
> I would just like to redirect the user to the page after downloading
> in viewer mode. Would it be possible to have just one example because
> my various tests are unsuccessful ?

This is a function that will be called instead of Redirect() with the 
same arguments.

Here is an example:

$UploadRedirectFunction = 'BenUploadRedirect';

function BenUploadRedirect($pagename, $url) {
   global $FmtV; # see $FmtV in HandlePostUpload (upload.php)

   # if not successfully uploaded, go back to upload form
   # (bad file type, larger file, other error):
   if($FmtV['$upresult'] != "upresult=success")
     return Redirect($pagename, $url);

   # here you could do something else,
   # possibly downscale pic, or log, or nothing

   # redirect to page, not to upload form
   Redirect($pagename);
}

Petko