nestjs-supabase-webhooks
Version:
NestJS module for Supabase Database Webhooks
56 lines • 3.12 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 __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
var SupabaseEventHandlerHeaderGuard_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.SupabaseEventHandlerHeaderGuard = void 0;
const common_1 = require("@nestjs/common");
const supabase_decorators_1 = require("./supabase.decorators");
const crypto = require("crypto");
let SupabaseEventHandlerHeaderGuard = SupabaseEventHandlerHeaderGuard_1 = class SupabaseEventHandlerHeaderGuard {
constructor(supabaseWebhookConfig) {
this.supabaseWebhookConfig = supabaseWebhookConfig;
this.logger = new common_1.Logger(SupabaseEventHandlerHeaderGuard_1.name);
}
canActivate(context) {
if (!this.supabaseWebhookConfig.webhookConfig) {
this.logger.warn('Supabase Webhook Guard is not configured. Please check your SupabaseModule configuration.');
return false;
}
const request = context.switchToHttp().getRequest();
const headerName = this.supabaseWebhookConfig.webhookConfig.headerName || 'x-supabase-signature';
const signature = request.headers[headerName];
const body = request === null || request === void 0 ? void 0 : request.rawBody;
const decodedSignature = Buffer.from(signature, 'base64');
const calculatedSignature = crypto
.createHmac('sha256', this.supabaseWebhookConfig.webhookConfig.secret)
.update(body)
.digest();
const hmacMatch = crypto.timingSafeEqual(decodedSignature, calculatedSignature);
if (!hmacMatch) {
this.logger.warn('Supabase Webhook Guard: Request could not be authentified.');
return false;
}
else {
this.logger.log('Supabase Webhook Guard: Request authentified.');
}
return true;
}
};
exports.SupabaseEventHandlerHeaderGuard = SupabaseEventHandlerHeaderGuard;
exports.SupabaseEventHandlerHeaderGuard = SupabaseEventHandlerHeaderGuard = SupabaseEventHandlerHeaderGuard_1 = __decorate([
(0, common_1.Injectable)(),
__param(0, (0, supabase_decorators_1.InjectSupabaseConfig)()),
__metadata("design:paramtypes", [Object])
], SupabaseEventHandlerHeaderGuard);
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