#402 instead static org_logo_width and org_logo_height

As already suggest I like get logo size with
getimagesize() function, search in php.net size the
documentation and note:

"Nota: The getimagesize() function does not require
the GD image library."

Comment By: Tomas Kuliavas (tokul) say me in
squirrelmail-Patches-1307628 that "getimagesize()
function call ads dependency on PHP gd extension." this
is not correct.

Anyway I use file_exists() function before call
getimagesize().

[Tomas Kuliavas]

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OK, my mistake. I thought that function listed in GD section
is part of GD extension.

Your patch tests for imap_open() function and does not
handle getimagesize() errors. "If accessing the filename
image is impossible, or if it isn't a valid picture,
getimagesize() will return FALSE and generate an error of
level E_WARNING."

[Anonymous]

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Sorry for my mistake. I mean:

if (function_exists('getimagesize'))

instead

if (function_exists('imap_open'))

...a paste and copy error ;-)

Anyway you get error only if permission on file is not
readable or the image is not really image... You can
also check some extensions with something like:

if (file_exists($org_logo) && is_readable($org_logo))

$extensions = array('jpg','gif','png');
$filename_array = explode('.',$org_logo);
if (in_array(end($filename_array),$extensions))

I will submit my updated patch

[Anonymous]

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Updated patch
File Added: login.php.diff

[Anonymous]

Patch for Auto determine $org_logo_width and $org_logo_height and more

[Alessandro De Zorzi]

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If you do not want to apply this patch, please consider check
if $org_logo exists and are readable

file_exists($org_logo) && is_readable($org_logo)