Allowed memory size of 67108864 bytes exhausted (tried to allocate 19276 bytes) in /var/***masked***/roundcubemail-1.0.1/program/lib/Roundcube/rcube_image.php on line 164
Result: Image display fails.
IMO there should be a check/limitation not to pass large images to GD. Do any others have such issues?
Yes. Maybe we could calculate somehow memory requirement of the image and skip conversion or add a configuration option specifying max image size. In both cases if we skip image conversion we should probably display some nice fallback thumbnail image.
ps. You can configure Roundcube to use ImageMagick instead of GD
the problem is *not* large images, the problem is that some even small images compressed with insane algorithms needs a lot of temporary RAM
there is no way to catch that on the PHP side except raise the limits
May be a workaround is to call resized images by an AJAX request and if the request errors out to use a fallback without passing things to GD. Another question is what to do with logging. I would prefer to supress the error log entry in this case.