replace Random with SecureRandom

[DaanHoogland]

Description

This PR replaces the local var of type Random used for token generation for project invites with a static field of type SecureRandom, making tokens somewhat less predicatable.

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

[DaanHoogland]

@blueorangutan package

[blueorangutan]

@DaanHoogland a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔️ el7 ✔️ el8 ✔️ debian ✔️ suse15. SL-JID 2529

[DaanHoogland]

@blueorangutan test

[blueorangutan]

@DaanHoogland a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[blueorangutan]

Trillian test result (tid-3239)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 36591 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr5966-t3239-kvm-centos7.zip
Smoke tests completed. 78 look OK, 2 have errors
Only failed tests results shown below:

Test	Result	Time (s)	Test File
test_01_add_primary_storage_disabled_host	Error	0.61	test_primary_storage.py
test_01_primary_storage_nfs	Error	0.11	test_primary_storage.py
ContextSuite context=TestStorageTags>:setup	Error	0.20	test_primary_storage.py
test_02_upgrade_kubernetes_cluster	Failure	376.34	test_kubernetes_clusters.py
test_03_deploy_and_scale_kubernetes_cluster	Failure	260.39	test_kubernetes_clusters.py
test_07_deploy_kubernetes_ha_cluster	Failure	54.30	test_kubernetes_clusters.py
test_08_upgrade_kubernetes_ha_cluster	Failure	33.85	test_kubernetes_clusters.py
test_09_delete_kubernetes_ha_cluster	Failure	0.04	test_kubernetes_clusters.py
ContextSuite context=TestKubernetesCluster>:teardown	Error	78.21	test_kubernetes_clusters.py

[sureshanaparti]

code LGTM

[sureshanaparti]

@blueorangutan test

[blueorangutan]

@sureshanaparti a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[GabrielBrascher]

Thanks for the quick PR, @DaanHoogland!
Code LGTM.

[blueorangutan]

Trillian test result (tid-3256)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 33860 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr5966-t3256-kvm-centos7.zip
Smoke tests completed. 92 look OK, 0 have errors
Only failed tests results shown below:

Test	Result	Time (s)	Test File