Sync1.1 End-of-Life Server

This application implements a simple memcached-backed server to send "end-of-life" notifications to Firefox Sync clients.

It provides a tiny portion of the Sync1.1 API as documented here:

https://docs.services.mozilla.com/storage/apis-1.1.html

It allows reads from "/info/collections", reads/writes to "meta/global" and and "meta/fxa_credentials" and "crypto/keys", and deletes to "/storage". All other requests are rejected with a special "513 SERVICE EOL" error that should trigger old sync clients to show a service-deprecation message to the user.

In theory, this is enough to allow clients to show appropriate messaging to the user and to trigger an offer of the guided sync upgrade flow. The allowed requests are designed to work around a client bug, where the EOL messaging is not shown if it is "trumped" by an error at certain early stages of the sync sequence. See the following bug for more details:

https://bugzilla.mozilla.org/show_bug.cgi?id=1017443

To build in a local virtualenv, simply do:

make build

To deploy, make sure you've got memcached running and do:

make serve