Keycloak auth adapter

[rhuanbarreto]

Implemented a keycloak authentication adapter. I'm using it already for more than 6 months normally as a custom module. Keycloak runs connecting to 2 LDAP servers and provide a centralized ID management system with roles and groups mapping to LDAP groups.

[rhuanbarreto]

I also left a PR in the docs repository for the documentation.

[codecov]

Codecov Report

Merging #6376 into master will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #6376      +/-   ##
==========================================
- Coverage   93.82%   93.80%   -0.02%     
==========================================
  Files         168      169       +1     
  Lines       12190    12220      +30     
==========================================
+ Hits        11437    11463      +26     
- Misses        753      757       +4     

Impacted Files	Coverage Δ
src/Adapters/Auth/index.js	93.54% <100.00%> (+0.10%)	⬆️
src/Adapters/Auth/keycloak.js	100.00% <100.00%> (ø)
src/Adapters/Storage/Mongo/MongoStorageAdapter.js	92.92% <0.00%> (-0.89%)	⬇️
src/RestWrite.js	93.82% <0.00%> (ø)

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[rhuanbarreto]

@dplewis @flovilmart @davimacedo Can you merge?

[dplewis]

@rhuanbarreto Sorry for the late reply. Can you add test cases? Everything looks good just want to make sure we have coverage.

[rhuanbarreto]

The test cases are bound to have a keycloak running. Should I add something like this in the test suite?

[davimacedo]

You can try to mock it. Or maybe use a "test endpoint". I am not sure they have one. You can refer to these tests: https://github.com/parse-community/parse-server/blob/master/spec/AuthenticationAdapters.spec.js

[rhuanbarreto]

I made the change to increase coverage and on Travis the errors are not related to my code changes.

Can you please check @davimacedo @dplewis ?

[davimacedo]

Could you please add more tests? Something like these ones.

[rhuanbarreto]

Sorry. I don't have time anymore for adding these tests. If it's not enough, you can close the PR.

[dplewis]

@rhuanbarreto I added a few tests cases. Can you review this?

[rhuanbarreto]

Tests are fine! You can merge.

[rhuanbarreto]

@davimacedo @dplewis are you able to merge?

[davimacedo]

LGTM!