Signing Service extension #5

[dybi]

Signing Service should have daily limits for transactions sums.
If the sum of transaction exceeds WARNING_DAILY_THRESHOLD = 1000 GNTB, Signing Service should issue a warning.
If the sum of transaction exceeds MAXIMUM_DAILY_THRESHOLD = 10000 GNTB, Signing Service should stop signing transactions.

TBD:

1. What kind of notification should be sent (email / warning in sentry/ print to console/ etc.)?

It should be sent via email

2. What if the transaction to be signed would greatly exceed MAXIMUM_DAILY_THRESHOLD? Maybe there should be check:

if transaction_to_be_signed.cost + daily_costs_so_far > MAXIMUM_DAILY_THRESHOLD:
     refuse_transaction()

Yes, the check should be like above.

3. Should Signing Service send any kind of notification when MAXIMUM_DAILY_THRESHOLD is exceeded? How, to whom?

Yes, via email.

4. Should Signing Service store daily_costs_so_far somewhere in case it is restarted?

Yes, simple file storage should be sufficient.

This issue should be closed when: #873, #877 and #878 are implemented.

[rwrzesien]

Should Signing Service store daily_costs_so_far somewhere in case it is restarted?

[cameel]

So, what's the status of this task?