This adds middleware that will create custom parameter metrics in
New Relic to track the size of all the cookies being received for
our domain. The custom fields are "cookies_total_size" and a
separate named parameter for every cookie size, e.g.
"cookies.csrftoken.size".
This is intended to help us track cookie growth and better diagnose
issues where users lose their sessions. It is toggled by the
'request_utils.capture_cookie_sizes' Waffle Flag.
Currently, the LMS logout endpoint should iframe in the logout pages of
all the IDAs you were logged into. In short, this was made possible with
DOP because keeping track of the logout URIs and leaving a trail of
evidence in the user cookies was part of what we added in our fork of
DOP. In the case of DOT, we don't have time or desire to fork DOT to
mirror this behavior, so our stop-gap solution is to log out the user
from a list of logout URIs in settings.
When an unknown content type is encountered, it's imported as a
RawDescriptor, which will preserve the OLX and export it back out. But
if we import a course while an XBlock is installed and then export it
after that XBlock is removed, we export RawDescriptors that never got to
save the original OLX and have a blank "data" field. Attempting to
export this used to fail and break export altogether. We now test that
the export continues to complete, and just skips over anything it can't
serialize out.
Note that this will stil export pointers in the export, so if you
uninstalled a "AmazingBlock" and exported, you might see something like
the following in a vertical's XML::
<vertical display_name="Unit">
<amazing url_name="2edebb68d5734395a06b8a62b9bb677e"/>
</vertical>
However there would be no corresponding file at:
/amazing/2edebb68d5734395a06b8a62b9bb677e.xml
In fact, there would be no /amazing directory at all in the export.
The better long term solution is probably to leave the pointer as-is
and export some generic file that can't be mistaken for OLX (say a
JSON file) that represents the raw key-value data we have in
Modulstore for the now unknown XBlock type. However, this commit at
least keeps export from crashing out entirely.
This prevents the Feature-Based Enrollments groups from showing
in Group Configurations unless the studio_override_enabled flag
is enabled. It also fixes a bug where FBE group configurations were
displaying usage as though they were Track-based group configurations.
REVMI-78
