dotnet-permission-authorization

Permission-Based Authorization Setup

Overview

This skill implements fine-grained permission-based authorization:

• Custom [HasPermission] attribute - Declarative permission requirements
• Policy provider - Dynamically creates policies from permissions
• Authorization handler - Validates user permissions
• Claims transformation - Converts roles to permissions

Quick Reference

| Component | Purpose | |-----------|---------| | Permissions | Static permission constants | | Roles | Static role constants | | HasPermissionAttribute | Custom authorize attribute | | PermissionAuthorizationHandler | Validates permissions | | PermissionAuthorizationPolicyProvider | Creates policies dynamically | | RoleToPermissionClaimsTransformation | Maps roles to permissions |

Authorization Structure

/Infrastructure/Authorization/
├── Permissions.cs
├── Roles.cs
├── HasPermissionAttribute.cs
├── PermissionRequirement.cs
├── PermissionAuthorizationHandler.cs
├── PermissionAuthorizationPolicyProvider.cs
├── RoleToPermissionClaimsTransformation.cs
└── AuthorizationExtensions.cs

Template: Permissions Definition

// src/{name}.infrastructure/Authorization/Permissions.cs
namespace {name}.infrastructure.authorization;

/// <summary>
/// All available permissions in the system
/// Format: {resource}:{action}
/// </summary>
public static class Permissions
{
    // ═══════════════════════════════════════════════════════════════
    // ORGANIZATION PERMISSIONS
    // ═══════════════════════════════════════════════════════════════
    public const string OrganizationsRead = "organizations:read";
    public const string OrganizationsWrite = "organizations:write";
    public const string OrganizationsDelete = "organizations:delete";
    public const string OrganizationsManageSettings = "organizations:manage_settings";

    // ═══════════════════════════════════════════════════════════════
    // USER PERMISSIONS
    // ═══════════════════════════════════════════════════════════════
    public const string UsersRead = "users:read";
    public const string UsersWrite = "users:write";
    public const string UsersDelete = "users:delete";
    public const string UsersManageRoles = "users:manage_roles";

    // ═══════════════════════════════════════════════════════════════
    // DEPARTMENT PERMISSIONS
    // ═══════════════════════════════════════════════════════════════
    public const string DepartmentsRead = "departments:read";
    public const string DepartmentsWrite = "departments:write";
    public const string DepartmentsDelete = "departments:delete";

    // ═══════════════════════════════════════════════════════════════
    // ASSESSMENT PERMISSIONS
    // ═══════════════════════════════════════════════════════════════
    public const string AssessmentsRead = "assessments:read";
    public const string AssessmentsWrite = "assessments:write";
    public const string AssessmentsSubmit = "assessments:submit";
    public const string AssessmentsReview = "assessments:review";

    // ═══════════════════════════════════════════════════════════════
    // REPORT PERMISSIONS
    // ═══════════════════════════════════════════════════════════════
    public const string ReportsRead = "reports:read";
    public const string ReportsExport = "reports:export";
    public const string ReportsViewSensitive = "reports:view_sensitive";

    // ═══════════════════════════════════════════════════════════════
    // ADMIN PERMISSIONS
    // ═══════════════════════════════════════════════════════════════
    public const string AdminAccess = "admin:access";
    public const string AdminManageSystem = "admin:manage_system";
}

Template: Roles Definition

// src/{name}.infrastructure/Authorization/Roles.cs
namespace {name}.infrastructure.authorization;

/// <summary>
/// All available roles in the system
/// </summary>
public static class Roles
{
    public const string SuperAdmin = "SuperAdmin";
    public const string Admin = "Admin";
    public const string Consultant = "Consultant";
    public const string Manager = "Manager";
    public const string Associate = "Associate";
    public const string Viewer = "Viewer";
}

Template: Role-Permission Mapping

// src/{name}.infrastructure/Authorization/RolePermissions.cs
namespace {name}.infrastructure.authorization;

/// <summary>
/// Maps roles to their granted permissions
/// </summary>
public static class RolePermissions
{
    private static readonly Dictionary<string, HashSet<string>> RolePermissionMap = new()
    {
        // ═══════════════════════════════════════════════════════════════
        // SUPER ADMIN - Full system access
        // ═══════════════════════════════════════════════════════════════
        [Roles.SuperAdmin] = new HashSet<string>
        {
            Permissions.OrganizationsRead,
            Permissions.OrganizationsWrite,
            Permissions.OrganizationsDelete,
            Permissions.OrganizationsManageSettings,
            Permissions.UsersRead,
            Permissions.UsersWrite,
            Permissions.UsersDelete,
            Permissions.UsersManageRoles,
            Permissions.DepartmentsRead,
            Permissions.DepartmentsWrite,
            Permissions.DepartmentsDelete,
            Permissions.AssessmentsRead,
            Permissions.AssessmentsWrite,
            Permissions.AssessmentsSubmit,
            Permissions.AssessmentsReview,
            Permissions.ReportsRead,
            Permissions.ReportsExport,
            Permissions.ReportsViewSensitive,
            Permissions.AdminAccess,
            Permissions.AdminManageSystem
        },

        // ═══════════════════════════════════════════════════════════════
        // ADMIN - Organization-level admin
        // ═══════════════════════════════════════════════════════════════
        [Roles.Admin] = new HashSet<string>
        {
            Permissions.OrganizationsRead,
            Permissions.OrganizationsWrite,
            Permissions.OrganizationsManageSettings,
            Permissions.UsersRead,
            Permissions.UsersWrite,
            Permissions.UsersManageRoles,
            Permissions.DepartmentsRead,
            Permissions.DepartmentsWrite,
            Permissions.DepartmentsDelete,
            Permissions.AssessmentsRead,
            Permissions.AssessmentsWrite,
            Permissions.AssessmentsReview,
            Permissions.ReportsRead,
            Permissions.ReportsExport,
            Permissions.ReportsViewSensitive,
            Permissions.AdminAccess
        },

        // ═══════════════════════════════════════════════════════════════
        // CONSULTANT - External consultants
        // ═══════════════════════════════════════════════════════════════
        [Roles.Consultant] = new HashSet<string>
        {
            Permissions.OrganizationsRead,
            Permissions.UsersRead,
            Permissions.DepartmentsRead,
            Permissions.AssessmentsRead,
            Permissions.AssessmentsReview,
            Permissions.ReportsRead,
            Permissions.ReportsExport
        },

        // ═══════════════════════════════════════════════════════════════
        // MANAGER - Department managers
        // ═══════════════════════════════════════════════════════════════
        [Roles.Manager] = new HashSet<string>
        {
            Permissions.OrganizationsRead,
            Permissions.UsersRead,
            Permissions.DepartmentsRead,
            Permissions.DepartmentsWrite,
            Permissions.AssessmentsRead,
            Permissions.AssessmentsWrite,
            Permissions.AssessmentsSubmit,
            Permissions.AssessmentsReview,
            Permissions.ReportsRead
        },

        // ═══════════════════════════════════════════════════════════════
        // ASSOCIATE - Regular employees
        // ═══════════════════════════════════════════════════════════════