Vinay/mgt proxy support: Added support for the MGT web proxy

[vinay199129]

Closes #

PR Type

Description of the changes

PR checklist

• Project builds (yarn build) and changes have been tested in at least two supported browsers (Edge + non-Chromium based browser)
• All public APIs (classes, methods, etc) have been documented following the jsdoc syntax
• Stories have been added and existing stories have been tested
• Added appropriate documentation. Docs PR:

• License header has been added to all new source files (yarn setLicense)
• Contains NO breaking changes

Other information

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
mgt-chat.src.statefulClient	100%	100%	0	✔
mgt-chat.src.utils	100%	92%	0	✔
mgt-components.dist.es6.components.mgt-agenda.src.components.mgt-agenda	14%	100%	0	❌
mgt-components.dist.es6.components.mgt-contact.src.components.mgt-contact	62%	100%	0	➖
mgt-components.dist.es6.components.mgt-file-list.mgt-file-upload.src.components.mgt-file-list.mgt-file-upload	43%	100%	0	❌
mgt-components.dist.es6.components.mgt-file-list.src.components.mgt-file-list	62%	100%	0	➖
mgt-components.dist.es6.components.mgt-file.src.components.mgt-file	61%	100%	0	➖
mgt-components.dist.es6.components.mgt-get.src.components.mgt-get	19%	100%	0	❌
mgt-components.dist.es6.components.mgt-login.src.components.mgt-login	64%	100%	0	➖
mgt-components.dist.es6.components.mgt-messages.src.components.mgt-messages	66%	100%	0	➖
mgt-components.dist.es6.components.mgt-organization.src.components.mgt-organization	46%	100%	0	❌
mgt-components.dist.es6.components.mgt-people-picker.src.components.mgt-people-picker	56%	100%	0	➖
mgt-components.dist.es6.components.mgt-people.src.components.mgt-people	72%	100%	0	➖
mgt-components.dist.es6.components.mgt-person-card.src.components.mgt-person-card	59%	33%	0	➖
mgt-components.dist.es6.components.mgt-person.src.components.mgt-person	53%	100%	0	➖
mgt-components.dist.es6.components.mgt-picker.src.components.mgt-picker	78%	100%	0	✔
mgt-components.dist.es6.components.mgt-planner.src.components.mgt-planner	55%	100%	0	➖
mgt-components.dist.es6.components.mgt-profile.src.components.mgt-profile	39%	100%	0	❌
mgt-components.dist.es6.components.mgt-search-box.src.components.mgt-search-box	83%	100%	0	✔
mgt-components.dist.es6.components.mgt-search-results.src.components.mgt-search-results	56%	100%	0	➖
mgt-components.dist.es6.components.mgt-tasks-base.src.components.mgt-tasks-base	86%	100%	0	✔
mgt-components.dist.es6.components.mgt-taxonomy-picker.src.components.mgt-taxonomy-picker	74%	100%	0	➖
mgt-components.dist.es6.components.mgt-teams-channel-picker.src.components.mgt-teams-channel-picker	62%	100%	0	➖
mgt-components.dist.es6.components.mgt-theme-toggle.src.components.mgt-theme-toggle	74%	100%	0	➖
mgt-components.dist.es6.components.mgt-todo.src.components.mgt-todo	78%	100%	0	✔
mgt-components.dist.es6.components.src.components	86%	100%	0	✔
mgt-components.dist.es6.components.sub-components.mgt-arrow-options.src.components.sub-components.mgt-arrow-options	76%	100%	0	✔
mgt-components.dist.es6.components.sub-components.mgt-dot-options.src.components.sub-components.mgt-dot-options	29%	100%	0	❌
mgt-components.dist.es6.components.sub-components.mgt-flyout.src.components.sub-components.mgt-flyout	40%	100%	0	❌
mgt-components.dist.es6.components.sub-components.mgt-spinner.src.components.sub-components.mgt-spinner	92%	100%	0	✔
mgt-components.dist.es6.graph.src.graph	36%	100%	0	❌
mgt-components.dist.es6.src	100%	100%	0	✔
mgt-components.dist.es6.styles.src.styles	73%	100%	0	➖
mgt-components.dist.es6.utils.src.utils	46%	100%	0	❌
mgt-components.src.components	84%	75%	0	✔
mgt-components.src.components.mgt-contact	68%	83%	0	➖
mgt-components.src.components.mgt-file	62%	100%	0	➖
mgt-components.src.components.mgt-file-list	46%	100%	0	❌
mgt-components.src.components.mgt-file-list.mgt-file-upload	49%	86%	0	❌
mgt-components.src.components.mgt-get	22%	100%	0	❌
mgt-components.src.components.mgt-messages	68%	100%	0	➖
mgt-components.src.components.mgt-organization	47%	100%	0	❌
mgt-components.src.components.mgt-person	84%	76%	0	✔
mgt-components.src.components.mgt-person-card	67%	48%	0	➖
mgt-components.src.components.mgt-picker	80%	100%	0	✔
mgt-components.src.components.mgt-profile	40%	100%	0	❌
mgt-components.src.components.mgt-tasks-base	87%	100%	0	✔
mgt-components.src.components.mgt-theme-toggle	100%	100%	0	✔
mgt-components.src.components.mgt-todo	79%	100%	0	✔
mgt-components.src.components.sub-components.mgt-flyout	72%	53%	0	➖
mgt-components.src.components.sub-components.mgt-spinner	100%	100%	0	✔
mgt-components.src.graph	40%	73%	0	❌
mgt-components.src.styles	92%	80%	0	✔
mgt-components.src.utils	82%	46%	0	✔
mgt-element.dist.es6.components.src.components	72%	74%	0	➖
mgt-element.dist.es6.mock.src.mock	91%	77%	0	✔
mgt-element.dist.es6.providers.src.providers	87%	83%	0	✔
mgt-element.dist.es6.src	91%	80%	0	✔
mgt-element.dist.es6.utils.src.utils	67%	73%	0	➖
mgt-element.src	93%	40%	0	✔
mgt-element.src.components	78%	100%	0	✔
mgt-element.src.mock	81%	56%	0	✔
mgt-element.src.providers	84%	91%	0	✔
mgt-element.src.utils	71%	90%	0	➖
Summary	60% (28097 / 46619)	71% (564 / 796)	0	➖

[MattBillFred]

A new subscription is being created right after renewing the previous one

When looking at the network log, I'm seeing a subscriptions POST happening immediately after the previous subscription is successfully PATCHed:

I validated that neither the prior version of MGT, nor the isWebProxyEnabled: false configuration, has this behavior.

[MattBillFred]

The subscription renewal process will fail after running for over an hour

At some point after running the chat list for an extended period of time, subscription renewals will fail with the following error:

error: invalid_grant
error_description: AADSTS500133: Assertion is not within its valid time range. Ensure that the access token is not expired before using it for user assertion, or request a new token. Current time: 2024-06-06T21:14:53.3917103Z, expiry time of assertion 2024-06-06T21:13:51.0000000Z.

Here are some examples:

Initial grant:       Thu, 06 Jun 2024 20:00:21 GMT
Most recent success: Thu, 06 Jun 2024 21:06:11 GMT
Failure:             Thu, 06 Jun 2024 21:14:53 GMT

Initial grant:       Fri, 07 Jun 2024 19:23:10 GMT
Most recent success: Fri, 07 Jun 2024 20:43:03 GMT
Failure:             Fri, 07 Jun 2024 20:51:43 GMT

I validated that this does not happen in the prior version of MGT. I did not test the isWebProxyEnabled: false configuration.

[MattBillFred]

MGT gets stuck in continuous POST loop until it uses up all the subscriptions

This is likely a problem due to me switching between versions of MGT while testing.

I initially see this error in the console:

Error: Failed to create a new subscription due to a transient condition; retrying in 3 seconds: Cannot read properties of undefined (reading 'findIndex')

This will trigger a new subscription request, which will eventually lead to the following error:

Operation: Create; Exception: [Status Code: Forbidden; Reason: User 'guid' has reached its limit of '10' 'USERS/GUID/CHATS/GETALLMESSAGES' subscription on tenant 'guid'.

The error is initially being thrown on this line in ProxySubscriptionCache.ts:

const subIndex = cacheEntry.proxySubscriptions.findIndex(

It appears that the cached entry being pulled from the store does not have proxySubscriptions defined. I'm guessing it is a value that was cached when I was running the prior version of MGT.