Throw an error when the size of a generated digest256 list exceeds Firefox's maximum chunk size

[englehardt]

See mozilla-services/shavar-prod-lists#79 (comment) for the problems that can result from not doing this. This max chunk size is given here, and enforced here.

[groovecoder]

This can be marked as fixed now?

[say-yawn]

Not yet, I need to refactor the code so that it exits before publishing at all. I conveyed that with @englehardt and will remove this as a blocker for #109

[shreyagupta30]

Hi @skim1102 Can I work on this?

[say-yawn]

Hey @shreyagupta30! Just checking on the status of this issue. Do you need anything clarified or have questions on the implementation for fixing this issue?

[shreyagupta30]

Yes @skim1102, I am still not able to figure out how to get started here. :(

[say-yawn]

As discussed on this comment the assertion for the max size should differ based on what version the branch is using.

• for versions equal to or higher than 73 the max size is 4 mebibytes as mentioned in bug 1594497
• for versions equal to or lower than 72 the max size is 1 mebibytes

[shreyagupta30]

As discussed on this comment the assertion for the max size should differ based on what version the branch is using.

* for versions equal to or higher than 73 the max size is 4 mebibytes as mentioned in [bug 1594497](https://bugzilla.mozilla.org/show_bug.cgi?id=1594497)

* for versions equal to or lower than 72 the max size is 1 mebibytes

Looking into it.