open-nomad/ui/app/abilities/abstract.js
2020-06-18 22:08:28 -07:00

83 lines
2.8 KiB
JavaScript

import { Ability } from 'ember-can';
import { inject as service } from '@ember/service';
import { computed, get } from '@ember/object';
import { equal, not } from '@ember/object/computed';
import classic from 'ember-classic-decorator';
@classic
export default class Abstract extends Ability {
@service system;
@service token;
@not('token.aclEnabled') bypassAuthorization;
@equal('token.selfToken.type', 'management') selfTokenIsManagement;
@computed('system.activeNamespace.name')
get activeNamespace() {
return this.get('system.activeNamespace.name') || 'default';
}
@computed('activeNamespace', 'token.selfTokenPolicies.[]')
get rulesForActiveNamespace() {
let activeNamespace = this.activeNamespace;
return (this.get('token.selfTokenPolicies') || []).toArray().reduce((rules, policy) => {
let policyNamespaces = get(policy, 'rulesJSON.Namespaces') || [];
let matchingNamespace = this._findMatchingNamespace(policyNamespaces, activeNamespace);
if (matchingNamespace) {
rules.push(policyNamespaces.find(namespace => namespace.Name === matchingNamespace));
}
return rules;
}, []);
}
activeNamespaceIncludesCapability(capability) {
return this.rulesForActiveNamespace.some(rules => {
let capabilities = get(rules, 'Capabilities') || [];
return capabilities.includes(capability);
});
}
// Chooses the closest namespace as described at the bottom here:
// https://www.nomadproject.io/guides/security/acl.html#namespace-rules
_findMatchingNamespace(policyNamespaces, activeNamespace) {
let namespaceNames = policyNamespaces.mapBy('Name');
if (namespaceNames.includes(activeNamespace)) {
return activeNamespace;
}
let globNamespaceNames = namespaceNames.filter(namespaceName => namespaceName.includes('*'));
let matchingNamespaceName = globNamespaceNames.reduce(
(mostMatching, namespaceName) => {
// Convert * wildcards to .* for regex matching
let namespaceNameRegExp = new RegExp(namespaceName.replace(/\*/g, '.*'));
let characterDifference = activeNamespace.length - namespaceName.length;
if (
characterDifference < mostMatching.mostMatchingCharacterDifference &&
activeNamespace.match(namespaceNameRegExp)
) {
return {
mostMatchingNamespaceName: namespaceName,
mostMatchingCharacterDifference: characterDifference,
};
} else {
return mostMatching;
}
},
{ mostMatchingNamespaceName: null, mostMatchingCharacterDifference: Number.MAX_SAFE_INTEGER }
).mostMatchingNamespaceName;
if (matchingNamespaceName) {
return matchingNamespaceName;
} else if (namespaceNames.includes('default')) {
return 'default';
}
}
}