69 lines
1.9 KiB
JavaScript
69 lines
1.9 KiB
JavaScript
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var fs = require('fs'),
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Promise = require('bluebird'),
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path = require('path'),
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parsePackageJson = require('../require-tree').parsePackageJson;
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function AppPermissions(appPath) {
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this.appPath = appPath;
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this.packagePath = path.join(this.appPath, 'package.json');
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}
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AppPermissions.prototype.read = function () {
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var self = this;
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return this.checkPackageContentsExists().then(function (exists) {
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if (!exists) {
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// If no package.json, return default permissions
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return Promise.resolve(AppPermissions.DefaultPermissions);
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}
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// Read and parse the package.json
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return self.getPackageContents().then(function (parsed) {
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// If no permissions in the package.json then return the default permissions.
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if (!(parsed.ghost && parsed.ghost.permissions)) {
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return Promise.resolve(AppPermissions.DefaultPermissions);
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}
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// TODO: Validation on permissions object?
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return Promise.resolve(parsed.ghost.permissions);
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});
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});
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};
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AppPermissions.prototype.checkPackageContentsExists = function () {
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var self = this;
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// Mostly just broken out for stubbing in unit tests
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return new Promise(function (resolve) {
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fs.exists(self.packagePath, function (exists) {
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resolve(exists);
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});
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});
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};
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// Get the contents of the package.json in the appPath root
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AppPermissions.prototype.getPackageContents = function () {
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var messages = {
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errors: [],
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warns: []
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};
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return parsePackageJson(this.packagePath, messages)
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.then(function (parsed) {
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if (!parsed) {
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return Promise.reject(new Error(messages.errors[0].message));
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}
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return parsed;
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});
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};
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// Default permissions for an App.
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AppPermissions.DefaultPermissions = {
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posts: ['browse', 'read']
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};
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module.exports = AppPermissions;
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