David Douard <david.douard@logilab.fr> [Tue, 27 Nov 2012 14:48:03 +0100] rev 8605
[web] add a digital signature to error form (closes #2522526)
Simple (and quite weak) implementation of a digital signature of the content
to be submited by email in the error report view generated by ErrorView.
The signature is a simple hmac hash computed using a secret key (generated at
repository startup) and the "secret" form content to be included in the
notification email. The controller can then check this content has not been
modified or forged by a malicious user.