feat: guardduty virus scanning

[scottheng96]

Problem

Closes [insert issue #]

Solution

Breaking Changes

• Yes - this PR contains breaking changes
  • Details ...
• No - this PR is backwards compatible

Features:

• Details ...

Improvements:

• Details ...

Bug Fixes:

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Before & After Screenshots

BEFORE:

AFTER:

Tests

Deploy Notes

New environment variables:

• env var : env var details

New scripts:

• script : script details

New dependencies:

• dependency : dependency details

New dev dependencies:

• dependency : dependency details

[datadog-opengovsg]

Datadog Report

Branch report: feat/guardduty-virus-scanning
Commit report: fcdbcaa
Test service: formsg

❌ 4 Failed (0 Known Flaky), 314 Passed, 0 Skipped, 1m 23.13s Total Time

❌ Failed Tests (4)

• handler should delete file and log and return 400 status with virus metadata if file is malicious - serverless/virus-scanner/src/__tests/index.spec.ts

• handler should move file to clean bucket and log and return 200 if file is not malicious - serverless/virus-scanner/src/__tests/index.spec.ts

• handler should return 500 error and log if file is clean but moving file to clean bucket fails - serverless/virus-scanner/src/__tests/index.spec.ts - Details

  Expand for error

   expect(received).toBe(expected) // Object.is equality
   
   Expected: "{\"message\":\"Failed to move file to clean bucket\",\"key\":\"97259c40-728f-41a3-aafa-b1f14aca378c\"}"
   Received: "{\"message\":\"Failed to get file tags\",\"err\":{\"$metadata\":{\"attempts\":1,\"totalRetryDelay\":0}},\"key\":\"97259c40-728f-41a3-aafa-b1f14aca378c\"}"
  

• handler should return 500 error and log if virus scanning fails to complete and not delete the quarantine file - serverless/virus-scanner/src/__tests/index.spec.ts