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* Mail: explicitly allow data-uris of arbitrary length for images (were shown as red questionmark, when longer then 800 chars)

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This commit is contained in:
ralf 2024-10-15 15:58:12 +02:00
parent 6b13b909ff
commit d574a85cd1
1 changed files with 3 additions and 1 deletions
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4
api/src/Html/HtmLawed.php
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@ -389,7 +389,9 @@ function hl_email_tag_transform($element, $attribute_array=0)
// $GLOBALS['egw_info']['user']['preferences']['mail']['allowExternalIMGs'] ? '' : 'match' => '/^cid:.*/'),
if (isset($attribute_array['src']))
{
if (!(strlen($attribute_array['src'])>4 && strlen($attribute_array['src'])<800))
// explicitly exclude data-uris of images from the length limit of 800 chars
if (!preg_match('#^data:image/[a-z]+;base64,#i',$attribute_array['src']) &&
!(strlen($attribute_array['src'])>4 && strlen($attribute_array['src'])<800))
{
$attribute_array['alt']= $attribute_array['alt'].' [blocked (reason: url length):'.$attribute_array['src'].']';
if (!isset($attribute_array['title'])) $attribute_array['title']=$attribute_array['alt'];