| 1 | const { chalk } = require('./../namespace/console');
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| 2 | const path = require('path');
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| 3 | const debug = require('debug');
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| 4 |
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| 5 | module.exports = class Policy {
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| 6 |
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| 7 | constructor (policies, logging, server, policy, controller, action) {
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| 8 | this.policy = policy;
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| 9 | this.controller = controller;
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| 10 | this.action = action;
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| 11 | this.server = server;
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| 12 | this.policies = policies;
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| 13 | this.logging = logging;
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| 14 | this.debug = debug('glad');
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| 15 | }
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| 16 |
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| 17 | restrict (req, res) {
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| 18 | this.debug('Policy: evaluating > %s', req.id);
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| 19 | req.controller = this.controller.name;
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| 20 | req.action = this.action;
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| 21 |
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| 22 | if (this.logging) {
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| 23 | chalk.info(`Routing ${req.id} to ${this.controller.name}#${this.action}`);
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| 24 | }
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| 25 |
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| 26 | if (this.policy) {
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| 27 | this.debug('Policy: lookup %s > %s', this.policy, req.id);
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| 28 | if (this.policies[this.policy]) {
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| 29 | this.debug('Policy: apply %s > %s', this.policy, req.id);
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| 30 | this.policies[this.policy](req, res, this.acceptor(req, res), this.rejector(req, res));
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| 31 | } else {
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| 32 | this.debug('Policy: %s not found [error] %s', this.policy, req.id);
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| 33 | chalk.error(`Policy Error: ${req.id || ''} The policy "${this.policy}" does not exist, therefore the request was denied`);
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| 34 | this.policies.onFailure(req, res);
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| 35 | }
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| 36 | } else {
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| 37 | this.debug('Policy: no policy to apply > %s', req.id);
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| 38 | this.runControllerMethod(req, res);
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| 39 | }
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| 40 | }
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| 41 |
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| 42 | acceptor (req, res) {
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| 43 | return () => {
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| 44 | this.debug('Policy:accept > %s', req.id);
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| 45 | this.runControllerMethod(req, res);
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| 46 | };
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| 47 | }
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| 48 |
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| 49 | rejector (req, res) {
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| 50 | return (custom) => {
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| 51 | this.debug('Policy:reject > %s', req.id);
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| 52 | return this.policies.onFailure(req, res, custom)
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| 53 | };
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| 54 | }
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| 55 |
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| 56 | runControllerMethod (req, res) {
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| 57 | this.debug('Policy:runControllerMethod > %s', req.id);
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| 58 | let controller = new this.controller(req, res, this.server.redis);
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| 59 | if (controller[this.action]) {
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| 60 | controller[this.action]();
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| 61 | } else {
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| 62 | chalk.error(`Routing Error: ${req.id || ''} Can not route request to "${req.controller}#${req.action}" because ${req.action} does not exist on ${req.controller}`);
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| 63 | this.policies.onFailure(req, res);
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| 64 | }
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| 65 | }
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| 66 |
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| 67 | }
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