Purchases: Hide plan controls for non-owners at site and account-level

[fditrapani]

Changes proposed in this Pull Request

This makes the subscription settings screen read-only for non-owners.

Before

After

Testing instructions

• Enable the site-level-billing flag
• Visit a product (plan, domain, Jetpack) where you're not the original purchaser
• Confirm that no renew, add/change payment methods, or cancel/delete subscription buttons are visible

Fixes # #45838

[matticbot]

Test live: https://calypso.live/?branch=add/account-restrictions-to-site-level-billing

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

Sections (~352 bytes added 📈 [gzipped])

name            parsed_size           gzip_size
site-purchases       +600 B  (+0.1%)     +176 B  (+0.1%)
purchases            +600 B  (+0.1%)     +176 B  (+0.1%)

Sections contain code specific for a given set of routes. Is downloaded and parsed only when a particular route is navigated to.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.

[fditrapani]

Updated screenshots with the new messaging:

[a8ci18n]

ℹ️ String reuse speeds up translation and improves consistency. The following string might make a good alternative and has already been translated 21 times:
translate( 'This plan was purchased by a different WordPress.com account. To manage this plan, log in to that account or contact the account owner.' ) ES Score: 7

[fditrapani]

This is a more generic use of the same sentence. We'll need to update it.

[fditrapani]

Thanks for the update @michaeldcain. @sirbrillig and @nbloomf, do you mind taking a look at this PR?

[fditrapani]

Just added Jetpack Support:

Owner:

User:

[sirbrillig]

This is looking good! Just a few minor suggestions.

[sirbrillig]

I still can't figure out a way to get to a subscription that I don't own, but the code looks good and if you're able to test it, then it's probably safe. 👍

[michaeldcain]

I still can't figure out a way to get to a subscription that I don't own

@sirbrillig if you have two accounts that are both admins on the same site, purchase a plan with one of them and then switch to the other to follow the testing instructions

[sirbrillig]

Thanks! Works as described!

[fditrapani]

Awesome, thanks for testing again @sirbrillig. Just waiting for tests to clear again.

[a8ci18n]

This Pull Request is now available for translation here: https://translate.wordpress.com/deliverables/4630077

Thank you @fditrapani for including a screenshot in the description! This is really helpful for our translators.

[a8ci18n]

Translation for this Pull Request has now been finished.