92 lines
2.4 KiB
JavaScript
92 lines
2.4 KiB
JavaScript
var step = require('step');
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/**
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*
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* @param metadataBackend
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* @param options
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* @constructor
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* @type {UserLimitsBackend}
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*/
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function UserLimitsBackend(metadataBackend, options) {
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this.metadataBackend = metadataBackend;
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this.options = options || {};
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this.options.limits = this.options.limits || {};
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this.preprareRateLimit();
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}
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module.exports = UserLimitsBackend;
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UserLimitsBackend.prototype.getRenderLimits = function (username, apiKey, callback) {
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var self = this;
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var limits = {
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cacheOnTimeout: self.options.limits.cacheOnTimeout || false,
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render: self.options.limits.render || 0
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};
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self.getTimeoutRenderLimit(username, apiKey, function (err, timeoutRenderLimit) {
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if (err) {
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return callback(err);
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}
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if (timeoutRenderLimit && timeoutRenderLimit.render) {
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if (Number.isFinite(timeoutRenderLimit.render)) {
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limits.render = timeoutRenderLimit.render;
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}
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}
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return callback(null, limits);
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});
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};
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UserLimitsBackend.prototype.getTimeoutRenderLimit = function (username, apiKey, callback) {
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var self = this;
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step(
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function isAuthorized() {
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var next = this;
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if (!apiKey) {
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return next(null, false);
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}
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self.metadataBackend.getUserMapKey(username, function (err, userApiKey) {
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if (err) {
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return next(err);
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}
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return next(null, userApiKey === apiKey);
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});
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},
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function getUserTimeoutRenderLimits(err, authorized) {
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var next = this;
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if (err) {
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return next(err);
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}
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self.metadataBackend.getUserTimeoutRenderLimits(username, function (err, timeoutRenderLimit) {
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if (err) {
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return next(err);
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}
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next(null, {
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render: authorized ? timeoutRenderLimit.render : timeoutRenderLimit.renderPublic
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});
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});
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},
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callback
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);
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};
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UserLimitsBackend.prototype.preprareRateLimit = function () {
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if (this.options.limits.rateLimitsEnabled) {
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this.metadataBackend.loadRateLimitsScript();
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}
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};
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UserLimitsBackend.prototype.getRateLimit = function (user, endpointGroup, callback) {
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this.metadataBackend.getRateLimit(user, 'maps', endpointGroup, callback);
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};
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