feat(audit): add Auditor interface - #149
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This repository does not receive automatic reviews because it has fewer than 10 stars. ⚙️ Run configurationConfiguration used: defaults Review profile: CHILL Plan: Team Run ID: 📝 WalkthroughWalkthroughAdded optional auditing to payment validation, payment webhooks, storage uploads, and storage deletes. New audit contracts define operation actions and event metadata. Existing responses and error propagation remain unchanged. ChangesPayment auditing
Storage auditing
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🟡 Moderate · up to The PR adds audit callbacks across storage and payment flows, but the current behavior can record successful operations that failed, mislabel upload URL generation as an upload, and omit important download or failure events. These inaccuracies can make audit records misleading or incomplete, so the PR is not merge-ready until the event semantics and failure coverage are corrected. Sequence Diagram(s)sequenceDiagram
participant PaymentService
participant PaymentGateway
participant Auditor
PaymentService->>PaymentGateway: validate payment or process webhook
PaymentGateway-->>PaymentService: response or processing error
PaymentService->>Auditor: AuditPayment with success or failure event
sequenceDiagram
participant StorageService
participant StorageDriver
participant Auditor
StorageService->>StorageDriver: generate upload URL or delete object
StorageDriver-->>StorageService: result or error
StorageService->>Auditor: AuditStorage with success or failure event
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Actionable comments posted: 7
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Inline comments:
In `@payment/service.go`:
- Around line 399-402: Update the already-terminal transaction branch in the
callback flow to assign tx.Status to finalStatus before returning, so the
subsequent auditPayment call records the existing terminal status instead of an
empty value.
- Around line 399-402: The ProcessWebhook success audit event currently occurs
before CompleteTaskStep completes, allowing failed operations to be recorded as
successful. Move the AuditActionWebhook event with Failure false to the final
successful return path, and emit a corresponding failure audit event when
CompleteTaskStep returns an error.
- Around line 299-301: Update the validation flow around auditPayment so a nil
gateway response is not recorded as a successful AuditActionValidate event.
Before emitting the current success audit, detect resp == nil and either reject
it in the service or record a failure event, while preserving the existing HTTP
500 behavior for nil responses.
- Around line 293-301: Update the successful validation audit event in the
payment validation flow to populate AuditEvent.Status from validationTx.Status
when validationTx is non-nil; retain an empty status for validations without a
matching domain transaction, and leave the failure audit event behavior
unchanged.
- Around line 291-302: Extend failure auditing across the complete validation
and payment operation pipelines: in payment/service.go lines 291-302, update the
method containing HandleValidateReference to audit gateway lookup, verification,
reference extraction, and repository failures; in payment/service.go lines
392-397, update the corresponding method to audit gateway lookup, verification,
parsing, nil-payload, and status-mapping failures. Reuse the existing
auditPayment mechanism and preserve successful-operation auditing and returns.
In `@storage/audit.go`:
- Around line 18-22: Update Service.Download and Service.GetDownloadURL to emit
audit events for both successful and failed driver operations, using
AuditActionDownload; mark failures with Failure: true and include the driver
error in Error, while preserving the existing return behavior. Add tests
covering success and driver-error outcomes for both methods.
In `@storage/service.go`:
- Around line 39-42: The Upload flow around StorageDriver.GetUploadURL must not
emit AuditActionUpload events, since URL generation does not confirm an object
write. Use a distinct presigned-URL generation audit action for both success and
failure records, or move upload auditing to a path that observes the actual
write while preserving the existing error details.
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📒 Files selected for processing (5)
payment/audit.gopayment/handler_test.gopayment/service.gostorage/audit.gostorage/service.go
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mushrafmim
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mushrafmim
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Nice work overall — the write-ahead pattern and the new test coverage are solid. This looks good to me pending two changes (inline below). Please keep the follow-up scoped to just these two recommendations rather than a broader audit-package refactor.
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| // SetAuditor injects an optional auditor for recording payment audit events. | ||
| // Passing nil disables auditing. | ||
| func (s *paymentService) SetAuditor(auditor Auditor) { |
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Two things here:
- Prefer
WithAuditoroverSetAuditor— matches the idiomatic Go naming convention for this kind of setter/option. - More importantly:
CreateCheckoutSession(line 143, unchanged by this diff) never callsauditPayment, even thoughValidateReferenceandProcessWebhookare fully wired with it elsewhere in this PR. That leaves the one path with a real state mutation unaudited — ifgateway.CreateSessionerrors, the transaction flips fromPENDINGtoFAILED(around line 211) with zero audit event emitted. Since the whole point of this PR is an audit trail, this is the highest-value path to cover — please addauditPaymentcalls there (success case, plus the FAILED-transition failure branch) matching the pattern already used inValidateReference.
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mushrafmim
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Thanks for pulling the shared Auditor/Event type out into shared/audit and covering CreateCheckoutSession — that addresses both earlier comments well.
One new issue introduced by this change: both go.mod files still require github.com/OpenNSW/core/shared v0.3.0 (unchanged), but the published shared/v0.3.0 tag does not contain the audit package — it's brand new in this PR and was never released. The replace github.com/OpenNSW/core/shared => ../shared lines make this invisible locally, but replace directives are not transitive: they only apply when the declaring module (payment or storage) is the one being built directly. Anyone who imports payment or storage as a dependency from outside this monorepo checkout — which is now unavoidable since WithAuditor(audit.Auditor) is part of the exported service interfaces — will resolve the real shared@v0.3.0, get a module without shared/audit, and fail to build. It'll look fine in this repo's own CI and local dev (whole monorepo checked out, ../shared resolves) but breaks the moment payment/storage are built in isolation, e.g. a Docker build context that only copies one module's directory.
Could we split this into two PRs instead:
- A PR that lands just the
shared/auditpackage on its own, gets merged, and is tagged as a realsharedrelease (e.g. v0.4.0). - This PR then bumps
require github.com/OpenNSW/core/sharedin bothpayment/go.modandstorage/go.modto that new tag and drops thereplacedirective entirely.
That keeps the dependency graph honest instead of only working because of a monorepo-wide checkout.
| golang.org/x/text v0.29.0 // indirect | ||
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| replace github.com/OpenNSW/core/shared => ../shared |
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This replace won't help anyone importing payment from outside this repo — see the review body for the full explanation. Please drop this once shared/audit is released as a real tagged version and require is bumped to it.
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Opened #172 for shared/audit. Once that is merged and tagged as shared/v0.4.0, this PR will bump the require and drop this replace.
| github.com/golang-jwt/jwt/v5 v5.3.1 // indirect | ||
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| replace github.com/OpenNSW/core/shared => ../shared |
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Same as the payment/go.mod comment — this replace is invisible to anyone consuming storage as a dependency outside this monorepo. Please drop it once shared/audit has a real tagged release and require points at it.
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Same as payment: opened #172, then this PR will bump require to shared@v0.4.0 and drop this replace.
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Split as requested:
The |
Rename SetAuditor to WithAuditor, move the event shape into shared/audit with a Domain field, and emit audit events from CreateCheckoutSession on success and FAILED transition. Co-authored-by: Cursor <cursoragent@cursor.com>
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PTAL @mushrafmim Payment/storage now attach |
2 participants
Related OpenNSW/nsw-srilanka#285
Summary
Introduce service-level
Auditorinterfaces and audit event callbacks tocore/storageandcore/payment.Consumers previously had to wrap HTTP handlers to record operational events, which lacked domain context (storage keys, payment references, gateway IDs). Optional
Auditorcallbacks onstorage.Serviceandpayment.PaymentServiceemit those events to a country-specific backend. A nil auditor leaves behavior unchanged.Type of Change
Changes Made
storage:Auditor/AuditEvent; optionalService.Auditor; events onUpload(presign URL generation only:PRESIGN_UPLOAD),Download/GetDownloadURL(READ), andDelete.payment:Auditor/AuditEvent;PaymentService.SetAuditor; events onValidateReferenceandProcessWebhook, including early failures, nil validation responses, and domainStatuswhen a matching transaction exists.Testing
cd payment && go test ./...andgo test ./storage/...pass.Checklist
Related Issues
Related to OpenNSW/nsw-srilanka#285
Screenshots/Demo
N/A — library API change, no UI.
Additional Notes
Service.Uploaddoes not observe an object write; it only generates a presigned URL, so it emitsPRESIGN_UPLOADrather thanCREATE. Checkout session creation is intentionally unaudited; this PR is limited to storage operations and payment validate/webhook.