Support authorization in Channel ingress

[creydr]

Fixes #7981

Follow up on #8123

Proposed Changes

• 🎁 Verify authorization in Channel ingress
• 🎁 Add support for authorization in InMemoryChannel

Release Note

InMemoryChannel ingress: Reject unauthorized requests

• WIP as it needs Fix: propagate EventPolicy filter to underlying Channels EventPolicy #8163

[codecov]

Codecov Report

Attention: Patch coverage is 12.50000% with 21 lines in your changes missing coverage. Please review.

Project coverage is 67.47%. Comparing base (b57ac3a) to head (7ce99b0).
Report is 1 commits behind head on main.

Files	Patch %	Lines
pkg/channel/event_receiver.go	0.00%	16 Missing ⚠️
...iler/inmemorychannel/dispatcher/inmemorychannel.go	28.57%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8162      +/-   ##
==========================================
- Coverage   67.52%   67.47%   -0.06%     
==========================================
  Files         371      371              
  Lines       17980    18001      +21     
==========================================
+ Hits        12141    12146       +5     
- Misses       5067     5084      +17     
+ Partials      772      771       -1     

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[creydr]

@creydr: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name Commit Details Required Rerun command
reconciler-tests_eventing_main a35530a link true /test reconciler-tests
Your PR dashboard.

Failing, because it's missing #8163

[creydr]

Rebased as #8163 merged

[Cali0707]

@creydr should we add a unit test to the event_receiver_test.go to see if the auth is being handled properly?

[creydr]

@creydr should we add a unit test to the event_receiver_test.go to see if the auth is being handled properly?

This can be hard, as the token verifier needs to run in the cluster and we don't have a mock for it :/
But I added the e2e tests "instead"

[Cali0707]

/lgtm

[knative-prow]

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This pull-request has been approved by: Cali0707, creydr

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