Changeset 0.16.0 (#74)

2026-02-27 02:38:35 +00:00
parent 1370d701af
commit 8bb77710b9
28 changed files with 3050 additions and 492 deletions
--- a/server/store/postgres/resource_grants.go
+++ b/server/store/postgres/resource_grants.go
@@ -0,0 +1,95 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+
+	"git.gobha.me/xcaliber/chat-switchboard/models"
+
+	"github.com/lib/pq"
+)
+
+// ── ResourceGrantStore ──────────────────────
+
+type ResourceGrantStore struct{}
+
+func NewResourceGrantStore() *ResourceGrantStore { return &ResourceGrantStore{} }
+
+// Set creates or replaces the grant for a resource (upsert on unique resource_type+resource_id).
+func (s *ResourceGrantStore) Set(ctx context.Context, grant *models.ResourceGrant) error {
+	// Coalesce nil to empty slice — pq.Array(nil) produces SQL NULL, but column expects array.
+	groups := grant.GrantedGroups
+	if groups == nil {
+		groups = []string{}
+	}
+	return DB.QueryRowContext(ctx, `
+		INSERT INTO resource_grants (resource_type, resource_id, grant_scope, granted_groups, created_by)
+		VALUES ($1, $2, $3, $4, $5)
+		ON CONFLICT (resource_type, resource_id) DO UPDATE SET
+			grant_scope    = EXCLUDED.grant_scope,
+			granted_groups = EXCLUDED.granted_groups,
+			created_by     = EXCLUDED.created_by
+		RETURNING id, created_at, updated_at`,
+		grant.ResourceType, grant.ResourceID, grant.GrantScope,
+		pq.Array(groups), grant.CreatedBy,
+	).Scan(&grant.ID, &grant.CreatedAt, &grant.UpdatedAt)
+}
+
+// Get retrieves the grant for a specific resource.
+func (s *ResourceGrantStore) Get(ctx context.Context, resourceType, resourceID string) (*models.ResourceGrant, error) {
+	var rg models.ResourceGrant
+	err := DB.QueryRowContext(ctx, `
+		SELECT id, resource_type, resource_id, grant_scope, granted_groups, created_by,
+		       created_at, updated_at
+		FROM resource_grants
+		WHERE resource_type = $1 AND resource_id = $2`,
+		resourceType, resourceID,
+	).Scan(&rg.ID, &rg.ResourceType, &rg.ResourceID, &rg.GrantScope,
+		pq.Array(&rg.GrantedGroups), &rg.CreatedBy,
+		&rg.CreatedAt, &rg.UpdatedAt)
+	if err != nil {
+		return nil, err
+	}
+	return &rg, nil
+}
+
+// Delete removes the grant for a resource.
+func (s *ResourceGrantStore) Delete(ctx context.Context, resourceType, resourceID string) error {
+	res, err := DB.ExecContext(ctx,
+		"DELETE FROM resource_grants WHERE resource_type = $1 AND resource_id = $2",
+		resourceType, resourceID)
+	if err != nil {
+		return err
+	}
+	if n, _ := res.RowsAffected(); n == 0 {
+		return sql.ErrNoRows
+	}
+	return nil
+}
+
+// UserHasGroupAccess checks whether a user has group-based access to a resource.
+// Returns true if:
+//   - The resource has grant_scope='global', OR
+//   - The resource has grant_scope='groups' and the user is in at least one
+//     of the granted_groups.
+func (s *ResourceGrantStore) UserHasGroupAccess(ctx context.Context, userID, resourceType, resourceID string) (bool, error) {
+	var has bool
+	err := DB.QueryRowContext(ctx, `
+		SELECT EXISTS(
+			SELECT 1 FROM resource_grants rg
+			WHERE rg.resource_type = $1
+			  AND rg.resource_id   = $2
+			  AND (
+				rg.grant_scope = 'global'
+				OR (
+					rg.grant_scope = 'groups'
+					AND EXISTS (
+						SELECT 1 FROM group_members gm
+						WHERE gm.user_id = $3
+						  AND gm.group_id = ANY(rg.granted_groups)
+					)
+				)
+			  )
+		)`, resourceType, resourceID, userID).Scan(&has)
+	return has, err
+}