Enable re-linking when a user connects an Uphold wallet

[zenparsing]

Resolves brave/brave-browser#14573

Submitter Checklist:

• I confirm that no security/privacy review is needed, or that I have requested one
• There is a ticket for my issue
• Used Github auto-closing keywords in the PR description above
• Wrote a good PR/commit description
• Added appropriate labels (QA/Yes or QA/No; release-notes/include or release-notes/exclude; OS/...) to the associated issue
• Checked the PR locally: npm run test -- brave_browser_tests, npm run test -- brave_unit_tests, npm run lint, npm run gn_check, npm run tslint
• Ran git rebase master (if needed)

Reviewer Checklist:

• A security review is not needed, or a link to one is included in the PR description
• New files have MPL-2.0 license header
• Adequate test coverage exists to prevent regressions
• Major classes, functions and non-trivial code blocks are well-commented
• Changes in component dependencies are properly reflected in gn
• Code follows the style guide
• Test plan is specified in PR before merging

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on
• All relevant documentation has been updated, for instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-Compatibility-Exceptions-in-Brave
  • https://github.com/brave/brave-browser/wiki/QA-Guide
  • https://github.com/brave/brave-browser/wiki/P3A

Test Plan:

With an Uphold-connected profile:

• Start the browser
• Navigate to brave://rewards and disconnect the Uphold account.
• Clear logs.
• Navigate to brave://rewards and connect an Uphold wallet.
• View logs.
  • Verify that a call was made to /v3/wallet/uphold/{payment_id}/claim and a 200 response was returned.

[emerick]

LGTM

[LaurenWags]

Verified using

Brave	1.23.41 Chromium: 89.0.4389.90 (Official Build) nightly (x86_64)
Revision	62eb262cdaae9ef819aadd778193781455ec7a49-refs/branch-heads/4389@{#1534}
OS	macOS Version 10.15.7 (Build 19H524)

Verified test plan from PR description

After disconnecting the wallet, I saw the below in my logs:

[Mar 16, 2021, 4:13:31.9 PM:INFO:uphold.cc(196)] Disconnecting wallet

Confirmed UI showed wallet as disconnected:

brave://rewards	brave://rewards-internals	panel

Reconnected Uphold wallet on brave://rewards:

brave://rewards	brave://rewards-internals	panel

Confirmed I see linking request in the logs:

[ REQUEST ]
> URL: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/c.............5/claim
> Method: UrlMethod::POST
> Content: {"signedLinkingRequest":"ey.............
> Content Type: application/json; charset=utf-8
[Mar 16, 2021, 4:17:46.1 PM:VERBOSE6:logging_util.cc(136)] 
[ RESPONSE - OnRequest ]
> Url: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/c...............5/claim
> Result: Success
> HTTP Code: 200
> Body: null

Checked able to reconnect/relink from panel as well:

[ REQUEST ]
> URL: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/c..........5/claim
> Method: UrlMethod::POST
> Content: {"signedLinkingRequest":"ey............
> Content Type: application/json; charset=utf-8
[Mar 16, 2021, 4:21:07.7 PM:VERBOSE6:logging_util.cc(136)] 
[ RESPONSE - OnRequest ]
> Url: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/c...........5/claim
> Result: Success
> HTTP Code: 200
> Body: null

Confirmed Ad grants claimed while wallet is not linked on server get sent to Uphold after re-linking occurs

1. Clean profile, join staging rewards, connect a KYC'd Uphold account

2. Asked Ben H to remove my wallet link on the server (make it so my paymentId was not linked to my Uphold wallet)
3. Once step 2 is completed, asked Chris to send me a staging Ad grant to my paymentId
4. After ~10 min, the ad grant showed up in the browser and I claimed it using captcha
5. Confirm Ad grant BAT not sent to Uphold

brave://rewards	brave://rewards-internals

Confirmed in Uphold Transactions list that the ad grant is not ported to Uphold.

Browser tries to send claimed ad grant to uphold, but it fails:

[ REQUEST ]
> URL: https://grant.rewards.bravesoftware.com/v1/suggestions/claim
> Method: UrlMethod::POST
> Content: {"credentials":[{"publicKey":"cvdPwa.....................
> Content Type: application/json; charset=utf-8
> Header digest: SHA-256=YVW4MDeDoU0ppgBp6n1VgHvs94TkIgDAPV1+sSX6kfk=
> Header signature: keyId="b0.........................
> Header accept: application/json
[43663:775:0316/153530.101920:VERBOSE6:logging_util.cc(136)] 
[ RESPONSE - OnRequest ]
> Url: https://grant.rewards.bravesoftware.com/v1/suggestions/claim
> Result: Failure
> HTTP Code: 400
> Body: {"message":"Error draining: Wallet is not verified","code":400}
[43663:775:0316/153530.102054:INFO:post_suggestions_claim.cc(60)] Invalid request
[43663:775:0316/153530.102107:INFO:credentials_promotion.cc(489)] Failed to parse redeem tokens response
[43663:775:0316/153530.102155:INFO:wallet.cc(149)] Claiming tokens failed

6. Click on "Wallet Verified" and disconnect from Uphold

brave://rewards	brave://rewards-internals

[43663:775:0316/153929.793941:VERBOSE1:uphold.cc(196)] Disconnecting wallet

7. Click on "Disconnected" to reconnect to Uphold and confirm re-link made.

brave://rewards	brave://rewards-internals	Uphold Transactions List

[ REQUEST ]
> URL: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/b..............7/claim
> Method: UrlMethod::POST
> Content: {"signedLinkingRequest":"eyJ........................
> Content Type: application/json; charset=utf-8
[43663:775:0316/154100.106195:VERBOSE6:logging_util.cc(136)] 
[ RESPONSE - OnRequest ]
> Url: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/b................7/claim
> Result: Success
> HTTP Code: 200
> Body: null

Confirmed ad grant ported to Uphold

[ REQUEST ]
> URL: https://grant.rewards.bravesoftware.com/v1/suggestions/claim
> Method: UrlMethod::POST
> Content: {"credentials":[{"publicKey":"cvd....................
> Content Type: application/json; charset=utf-8
> Header digest: SHA-256=YVW4MDeDoU0ppgBp6n1VgHvs94TkIgDAPV1+sSX6kfk=
> Header signature: keyId="b0............................
> Header accept: application/json
[43663:775:0316/154100.695098:VERBOSE6:logging_util.cc(136)] 
[ RESPONSE - OnRequest ]
> Url: https://grant.rewards.bravesoftware.com/v1/suggestions/claim
> Result: Success
> HTTP Code: 200
> Body: 

Confirm not disconnected from Uphold on upgrade

Installed 1.21.77 on staging and connected KYC'd uphold account.

Close 1.21.x and rename profile to Nightly.

Launch with 1.23.41, confirm you are not disconnected from Uphold and can still tip a KYC'd publisher.

1.21.77	1.23.41	Tip to KYC'd publisher	Tip shown in Uphold Transactions

[srirambv]

• Verified disconnecting an existing wallet work

2021-03-18 05:00:29.023 26676-26676/? V/chromium: [VERBOSE1:uphold.cc(196)] Disconnecting wallet

• Verified after connecting the wallet again got the confirmation of existing wallet

2021-03-18 08:12:20.631 26676-26676/? V/chromium: [VERBOSE1:wallet_create.cc(35)] Wallet already exists
2021-03-18 08:12:20.637 26676-26676/? V/chromium: [VERBOSE5:ledger_impl.cc(139)] 
    [ REQUEST ]
    > URL: https://api-sandbox.uphold.com/oauth2/token
    > Method: UrlMethod::POST
    > Content: code=2a...................................0&grant_type=authorization_code
    > Content Type: application/x-www-form-urlencoded

2021-03-18 08:12:24.645 26676-26676/? V/chromium: [VERBOSE5:ledger_impl.cc(139)] 
    [ REQUEST ]
    > URL: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/a0.../claim
    > Method: UrlMethod::POST
    > Content: {"signedLinkingRequest":"eyJ....."}
    > Content Type: application/json; charset=utf-8

• Verified able to reconnect/relink from panel as well

2021-03-18 08:12:25.895 26676-26676/? V/chromium: [VERBOSE6:logging_util.cc(136)] 
    [ RESPONSE - OnRequest ]
    > Url: https://grant.rewards.bravesoftware.com/v3/wallet/uphold/a0.../claim
    > Result: Success
    > HTTP Code: 200
    > Body: null

Disconnected	Connected