Sharepoint-Toolbox/.planning/phases/07-user-access-audit/07-02-SUMMARY.md

phase, plan, subsystem, tags, dependency_graph, tech_stack, key_files, decisions, metrics

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	metrics
07-user-access-audit	02	audit-engine	service business-logic user-access-audit permissions transform	requires provides affects 07-01 UserAccessAuditService 07-04 07-05 07-06 07-07 07-08	added patterns iterator pattern (yield return) HashSet for O(1) lookup case-insensitive contains matching	created modified SharepointToolbox/Services/UserAccessAuditService.cs	TenantProfile.ClientId set to empty string in service — session must be pre-authenticated at ViewModel level; SessionManager returns cached context by URL key without requiring ClientId again User matching uses bidirectional contains (loginLower.Contains(target) || target.Contains(loginLower)) to handle both plain email and full SharePoint claim formats Each permission level emits a separate UserAccessEntry row (fully denormalized) — consistent with 07-01 design decision	duration_minutes completed_date tasks_completed files_created files_modified 5 2026-04-07 1 1 0

Phase 7 Plan 02: UserAccessAuditService Implementation Summary

One-liner: UserAccessAuditService scans PermissionsService results across multiple sites, filters by target user logins via bidirectional contains matching, and emits fully-denormalized UserAccessEntry rows with access type classification, high-privilege detection, and external user flagging.

What Was Built

UserAccessAuditService.cs — Core business logic service implementing IUserAccessAuditService:

1. Multi-site loop — Iterates sites list, builds a TenantProfile per site (TenantUrl = site URL), obtains a ClientContext via the injected ISessionManager, then delegates to IPermissionsService.ScanSiteAsync for raw permission data. Progress is reported per site.

2. TransformEntries — Static iterator method that splits semicolon-delimited UserLogins, Users, and PermissionLevels fields from each PermissionEntry. For each user/level combination that matches a target login, yields a UserAccessEntry record. Uses yield return for lazy evaluation.

3. User matching — Case-insensitive bidirectional contains: loginLower.Contains(target) || target.Contains(loginLower). Handles both plain email addresses and full SharePoint claim format (i:0#.f|membership|alice@contoso.com).

4. ClassifyAccessType — Maps HasUniquePermissions + GrantedThrough to AccessType enum: !HasUniquePermissions → Inherited; GrantedThrough starts with "SharePoint Group:" → Group; else Direct.

5. HighPrivilegeLevels — Static HashSet<string> (case-insensitive) containing "Full Control" and "Site Collection Administrator". O(1) lookup per entry.

Tasks

#	Task	Status	Commit
1	Implement UserAccessAuditService	Done	44b238e

Decisions Made

1. ClientId empty in service — TenantProfile.ClientId is set to string.Empty when constructing per-site profiles. SessionManager validates ClientId only when creating a new context. Since the user authenticates at the ViewModel layer before invoking the service, the session is already cached and returned by URL key without re-checking ClientId.

2. Bidirectional contains matching — The target login could be a short email ("alice@contoso.com") while the PermissionEntry stores the full claim ("i:0#.f|membership|alice@contoso.com"), or vice versa. Bidirectional contains handles both cases without requiring callers to normalize their input format.

3. Fully denormalized output — Consistent with the 07-01 decision: one row per user + object + permission level. A single PermissionEntry with 2 users and 3 permission levels emits up to 6 UserAccessEntry rows.

Deviations from Plan

None — plan executed exactly as written.

Verification

• dotnet build SharepointToolbox/SharepointToolbox.csproj — 0 errors, 0 warnings
• UserAccessAuditService implements IUserAccessAuditService interface
• TransformEntries splits semicolon-delimited logins/names/levels correctly
• ClassifyAccessType maps HasUniquePermissions + GrantedThrough to AccessType enum
• HighPrivilegeLevels HashSet contains "Full Control" and "Site Collection Administrator"

Self-Check: PASSED

Files confirmed present:

• FOUND: SharepointToolbox/Services/UserAccessAuditService.cs

Commits confirmed:

• FOUND: 44b238e