@mbc-cqrs-serverless/core
Version:
CQRS and event base core
142 lines • 5.87 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var RolesGuard_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.RolesGuard = void 0;
const common_1 = require("@nestjs/common");
const core_1 = require("@nestjs/core");
const constants_1 = require("../constants");
const context_1 = require("../context");
const decorators_1 = require("../decorators");
let RolesGuard = RolesGuard_1 = class RolesGuard {
constructor(reflector) {
this.reflector = reflector;
this.logger = new common_1.Logger(RolesGuard_1.name);
}
async canActivate(context) {
// check tenant
const allowedTenant = await this.verifyTenant(context);
if (!allowedTenant) {
return false;
}
// check role permissions
const allowedRole = await this.verifyRole(context);
return allowedRole;
}
/**
* Verify tenant access.
* This method checks if the user has valid tenant access, including
* validation for header-based tenant override.
*/
async verifyTenant(context) {
const userContext = (0, context_1.getUserContext)(context);
// Tenant code is required
if (!userContext.tenantCode) {
return false;
}
// If tenant code comes from header (not from custom:tenant), verify permission
if (this.isHeaderOverride(context, userContext)) {
return this.canOverrideTenant(context, userContext);
}
return true;
}
/**
* Check if tenant code was provided via header override (no custom:tenant in JWT).
* Override this method to customize header override detection logic.
*/
isHeaderOverride(context, userContext) {
const claims = this.getAuthorizerClaims(context);
// If custom:tenant exists in JWT, it's not a header override
return !claims['custom:tenant'] && !!userContext.tenantCode;
}
/**
* Check if user can override tenant via header.
* Override this method to implement custom authorization logic for cross-tenant access.
*
* Default behavior:
* - Allow access to common tenant codes (e.g., 'common')
* - Allow users with cross-tenant roles (e.g., 'system_admin')
*/
canOverrideTenant(context, userContext) {
// Allow access to common tenant
if (this.getCommonTenantCodes().includes(userContext.tenantCode)) {
return true;
}
// Allow users with cross-tenant roles
return this.getCrossTenantRoles().includes(userContext.tenantRole);
}
/**
* Get list of common tenant codes that anyone can access via header.
* By default, reads from COMMON_TENANT_CODES environment variable (comma-separated).
* Override this method to customize common tenant codes.
*
* Example override in application:
* ```typescript
* protected getCommonTenantCodes(): string[] {
* const codes = this.configService.get('COMMON_TENANT_CODES', 'common')
* return codes.split(',').map(c => c.trim())
* }
* ```
*/
getCommonTenantCodes() {
return constants_1.DEFAULT_COMMON_TENANT_CODES;
}
/**
* Get list of roles that can perform cross-tenant operations via header override.
* By default, reads from CROSS_TENANT_ROLES environment variable (comma-separated).
* Override this method to customize cross-tenant roles.
*
* Example override in application:
* ```typescript
* protected getCrossTenantRoles(): string[] {
* const roles = this.configService.get('CROSS_TENANT_ROLES', 'system_admin,general_manager')
* return roles.split(',').map(r => r.trim())
* }
* ```
*/
getCrossTenantRoles() {
return constants_1.DEFAULT_CROSS_TENANT_ROLES;
}
/**
* Get JWT authorizer claims from execution context.
* This is a helper method that can be used by subclasses.
*/
getAuthorizerClaims(context) {
const invokeContext = (0, context_1.extractInvokeContext)(context);
return (0, context_1.getAuthorizerClaims)(invokeContext);
}
async verifyRole(context) {
const requiredRoles = this.reflector.getAllAndOverride(decorators_1.ROLE_METADATA, [context.getHandler(), context.getClass()]);
if (!requiredRoles || !requiredRoles.length) {
// all user can access
return true;
}
const userRole = await this.getUserRole(context);
if (!userRole) {
return false;
}
if (userRole === constants_1.ROLE_SYSTEM_ADMIN) {
return true;
}
return requiredRoles.includes(userRole);
}
// eslint-disable-next-line @typescript-eslint/no-unused-vars
async getUserRole(context) {
const userContext = (0, context_1.getUserContext)(context);
return userContext.tenantRole;
}
};
exports.RolesGuard = RolesGuard;
exports.RolesGuard = RolesGuard = RolesGuard_1 = __decorate([
(0, common_1.Injectable)(),
__metadata("design:paramtypes", [core_1.Reflector])
], RolesGuard);
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