https://reviews.mahara.org/1180
** Changed in: mahara
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/992930
Title:
When an image artefact isn't present in the database, getimagesize is
called on a directory
Status in Mahara ePortfolio:
In Progress
Bug description:
in /thumb.php, line 75, a call to get_dataroot_image with the fileid argument
as the result of get_field.
If the database doesn't contain this entry, then get_field will return false.
in /lib/file.php, line 478 (get_dataroot_image), the $id argument is assumed
to be an int, and the variable
$originalimage is created using this variable, which results in a directory
path instead of a filename if $id==false.
On line 525, the $originalimage variable is used in a call to getimagesize,
which stalls a bit, then throws the following:
"PHP Notice: getimagesize(): Read error!" and outputs a stacktrace to the
error log.
This bug resulted in severely increased load on a clients 1.2
instance, which made their webserver unusable. This bug is also
present on 1.5. A patch is attached
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