feat: public access prevention

[shaffeeullah]

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Fixes #312 🦕

[tritone]

Generally looks good-- my biggest question is whether we should use some kind of enum or constant for the values.

[tseaver]

The systest failures seem to indicate that the feature is not working as expected. Do we need to get the CI project added to a whitelist?

[shaffeeullah]

The systest failures seem to indicate that the feature is not working as expected. Do we need to get the CI project added to a whitelist?

The backend feature still has some bugs that are being resolved. The current failure is expected at this time.

[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
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[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

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[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

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[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

ℹ️ Googlers: Go here for more info.

[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

ℹ️ Googlers: Go here for more info.

[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

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[shaffeeullah]

Hi @tseaver , can you please sign the CLA? See #304 (comment)

[shaffeeullah]

Hi @tseaver , can you please sign the CLA? See #304 (comment)

@tseaver friendly bump

[googlebot]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

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[andrewsg]

Tres has signed the CLA and submitted other PRs with the same email address without issue, so I don't know why googlebot is complaining here.

[andrewsg]

@shaffeeullah This seems to be an issue with Github adding Tres to the contributor list automatically, with different user details than he normally uses based on the git config in his actual computer.

Tres definitely is a CLA signer. I conferred with Frank and he suggested you rebase to remove Tres from the contributor list and force-push. Please message me on chat if you need help wrangling git here. And make a backup of your branch just in case.

[tritone]

One minor docs comment, otherwise looks good!

[google-cla]

CLAs look good, thanks!

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[google-cla]

CLAs look good, thanks!

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[shaffeeullah]

Public access prevention rollout has been delayed due to a bug surfaced during Googler preview. I will keep this PR updated as I learn new release timeline details.

[shaffeeullah]

@andrewsg This feature can now be merged and released. Are you able to help me with this?

[tseaver]

@shaffeeullah I can help fix the merge, since my PR refactoring the system tests is what broke your new ones.

[google-cla]

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We need to confirm that all authors are ok with their commits being contributed to this project. Please have them confirm that by leaving a comment that contains only @googlebot I consent. in this pull request.

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[tseaver]

@googlebot I consent.

[google-cla]

CLAs look good, thanks!

ℹ️ Googlers: Go here for more info.

[google-cla]

CLAs look good, thanks!

ℹ️ Googlers: Go here for more info.

[shaffeeullah]

Thanks, @tseaver !! @andrewsg @tseaver If the tests pass, would it be possible to release this today?

[tseaver]

@shaffeeullah Yes, we should be able to make a release. @cojenco, are any of your open PRs at a state where they should be merged before a release?

[cojenco]

Thanks @tseaver and @shaffeeullah! I'll be merging #480 shortly and trying to squeeze in #484 this morning as well for the release.

[tseaver]

@shaffeeullah Release is in progress: PR #485