59 lines
1.7 KiB
JavaScript
59 lines
1.7 KiB
JavaScript
'use strict';
|
|
|
|
const RATE_LIMIT_ENDPOINTS_GROUPS = {
|
|
QUERY: 'query',
|
|
QUERY_FORMAT: 'query_format',
|
|
JOB_CREATE: 'job_create',
|
|
JOB_GET: 'job_get',
|
|
JOB_DELETE: 'job_delete'
|
|
};
|
|
|
|
|
|
function rateLimit(userLimits, endpointGroup = null) {
|
|
if (!isRateLimitEnabled(endpointGroup)) {
|
|
return function rateLimitDisabledMiddleware(req, res, next) { next(); };
|
|
}
|
|
|
|
return function rateLimitMiddleware(req, res, next) {
|
|
userLimits.getRateLimit(res.locals.user, endpointGroup, function(err, userRateLimit) {
|
|
if (err) {
|
|
return next(err);
|
|
}
|
|
|
|
if (!userRateLimit) {
|
|
return next();
|
|
}
|
|
|
|
const [isBlocked, limit, remaining, retry, reset] = userRateLimit;
|
|
|
|
res.set({
|
|
'Carto-Rate-Limit-Limit': limit,
|
|
'Carto-Rate-Limit-Remaining': remaining,
|
|
'Carto-Rate-Limit-Reset': reset
|
|
});
|
|
|
|
if (isBlocked) {
|
|
// retry is floor rounded in seconds by redis-cell
|
|
res.set('Retry-After', retry + 1);
|
|
|
|
const rateLimitError = new Error(
|
|
'You are over platform\'s limits. Please contact us to know more details'
|
|
);
|
|
rateLimitError.http_status = 429;
|
|
return next(rateLimitError);
|
|
}
|
|
|
|
return next();
|
|
});
|
|
};
|
|
}
|
|
|
|
function isRateLimitEnabled(endpointGroup) {
|
|
return global.settings.ratelimits.rateLimitsEnabled &&
|
|
endpointGroup &&
|
|
global.settings.ratelimits.endpoints[endpointGroup];
|
|
}
|
|
|
|
module.exports = rateLimit;
|
|
module.exports.RATE_LIMIT_ENDPOINTS_GROUPS = RATE_LIMIT_ENDPOINTS_GROUPS;
|