alrahma_sunday_school_api/apps/api/dist/middleware/rateLimiter.js

"use strict";
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    if (k2 === undefined) k2 = k;
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    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
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    };
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        if (mod && mod.__esModule) return mod;
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        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.actorLimiter = exports.adminLimiter = exports.publicLimiter = exports.apiLimiter = exports.authLimiter = void 0;
const express_rate_limit_1 = __importStar(require("express-rate-limit"));
const tokens_1 = require("../security/tokens");
const sessionCookies_1 = require("../security/sessionCookies");
const SESSION_COOKIE_NAMES = [
    (0, sessionCookies_1.getSessionCookieName)('admin'),
    (0, sessionCookies_1.getSessionCookieName)('employee'),
    (0, sessionCookies_1.getSessionCookieName)('renter'),
];
function readCookie(cookieHeader, name) {
    if (!cookieHeader)
        return null;
    for (const chunk of cookieHeader.split(';')) {
        const [rawName, ...rawValue] = chunk.trim().split('=');
        if (rawName === name)
            return decodeURIComponent(rawValue.join('='));
    }
    return null;
}
function getBearerToken(req) {
    const authHeader = req.headers.authorization;
    if (!authHeader?.startsWith('Bearer '))
        return null;
    const token = authHeader.slice(7).trim();
    return token || null;
}
function getRequestToken(req) {
    const cookieHeader = req.headers.cookie;
    for (const name of SESSION_COOKIE_NAMES) {
        const token = readCookie(cookieHeader, name);
        if (token)
            return token;
    }
    return getBearerToken(req);
}
function getAuthenticatedActorKey(req) {
    const token = getRequestToken(req);
    if (!token)
        return null;
    try {
        const payload = (0, tokens_1.verifyAnyActorToken)(token);
        return `${payload.type}:${payload.sub}`;
    }
    catch {
        return null;
    }
}
// req.ip is already the real client IP when app.set('trust proxy', 1) is configured
const getClientIpKey = (req) => (0, express_rate_limit_1.ipKeyGenerator)(req.ip ?? '');
// Strict limiter for auth endpoints — prevents brute-force and credential stuffing.
// Successful requests (e.g. GET /me profile reads) are skipped so only failed
// attempts count toward the cap.
exports.authLimiter = (0, express_rate_limit_1.default)({
    windowMs: 15 * 60 * 1000, // 15 minutes
    max: 20,
    standardHeaders: 'draft-7',
    legacyHeaders: false,
    skipSuccessfulRequests: true,
    keyGenerator: (req) => getClientIpKey(req),
    message: { error: 'too_many_requests', message: 'Too many attempts, please try again later', statusCode: 429 },
});
// Standard limiter for general authenticated API endpoints
exports.apiLimiter = (0, express_rate_limit_1.default)({
    windowMs: 60 * 1000, // 1 minute
    max: 120,
    standardHeaders: 'draft-7',
    legacyHeaders: false,
    keyGenerator: (req) => {
        const ip = getClientIpKey(req);
        const actorKey = getAuthenticatedActorKey(req);
        const companyId = req.companyId ?? '';
        const renterId = req.renterId ?? '';
        return `${ip}:${actorKey || companyId || renterId || 'anonymous'}`;
    },
    message: { error: 'too_many_requests', message: 'Rate limit exceeded', statusCode: 429 },
});
// Limiter for public marketplace and site endpoints (no auth)
exports.publicLimiter = (0, express_rate_limit_1.default)({
    windowMs: 60 * 1000,
    max: 60,
    standardHeaders: 'draft-7',
    legacyHeaders: false,
    keyGenerator: (req) => getClientIpKey(req),
    message: { error: 'too_many_requests', message: 'Rate limit exceeded', statusCode: 429 },
});
// Tight limiter for admin endpoints
exports.adminLimiter = (0, express_rate_limit_1.default)({
    windowMs: 15 * 60 * 1000,
    max: 100,
    standardHeaders: 'draft-7',
    legacyHeaders: false,
    keyGenerator: (req) => {
        const ip = getClientIpKey(req);
        return `${ip}:${getAuthenticatedActorKey(req) || 'anonymous'}`;
    },
    message: { error: 'too_many_requests', message: 'Too many admin requests', statusCode: 429 },
});
// Applied after authentication so limits can include actor identity rather than
// pretending every employee behind the same NAT is the same organism.
exports.actorLimiter = (0, express_rate_limit_1.default)({
    windowMs: 60 * 1000,
    max: 240,
    standardHeaders: 'draft-7',
    legacyHeaders: false,
    keyGenerator: (req) => {
        const ip = getClientIpKey(req);
        const actorKey = getAuthenticatedActorKey(req);
        const companyId = req.companyId ?? '';
        const employeeId = req.employee?.id ?? '';
        const renterId = req.renterId ?? '';
        const adminId = req.admin?.id ?? '';
        return `${ip}:${companyId}:${actorKey || employeeId || renterId || adminId || 'anonymous'}`;
    },
    message: { error: 'too_many_requests', message: 'Authenticated rate limit exceeded', statusCode: 429 },
});
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