Friendica/friendica-github
1
0
Fork 0
mirror of https://github.com/friendica/friendica synced 2024-12-22 22:40:16 +00:00
Code Issues Projects Releases Packages Wiki Activity

Adding hexadecimal check for photos

Browse source 
see https://github.com/friendica/friendica/issues/6917#issuecomment-492798238
This commit is contained in:
Philipp Holzer 2019-05-29 20:28:25 +02:00
parent 59bbb1ac99
commit 3de540d1d1
No known key found for this signature in database
GPG key ID: D8365C3D36B77D90
2 changed files with 16 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
mod/photos.php
View file

@ -1027,6 +1027,10 @@ function photos_content(App $a)
// Display a single photo album
if ($datatype === 'album') {
// if $datum is not a valid hex, redirect to the default page
if (!Strings::isHex($datum)) {
$a->internalRedirect();
}
$album = hex2bin($datum);
$total = 0;

12
src/Util/Strings.php
View file

@ -31,6 +31,18 @@ class Strings
return $return;
}
/**
* Checks, if the given string is a valid hexadecimal code
*
* @param string $hexCode
*
* @return bool
*/
public static function isHex($hexCode)
{
return @preg_match("/^[a-f0-9]{2,}$/i", $hexCode) && !(strlen($hexCode) & 1);
}
/**
* @brief This is our primary input filter.
*