128 lines
3.7 KiB
JavaScript
128 lines
3.7 KiB
JavaScript
const { Model } = require('flitter-orm')
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// TODO - remove specific :create checks; auto-grant permissions on create
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class PolicyModel extends Model {
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static get services() {
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return [...super.services, 'models']
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}
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static get schema() {
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return {
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entity_type: String, // user | group
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entity_id: String,
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access_type: String, // allow | deny
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target_type: { type: String, default: 'application' }, // application
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target_id: String,
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active: { type: Boolean, default: true },
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}
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}
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static async check_allow(entity_id, target_id) {
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const policies = await this.find({
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entity_id,
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target_id,
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access_type: 'allow',
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active: true,
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})
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return policies.length > 0
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}
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static async check_deny(entity_id, target_id) {
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const policies = await this.find({
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entity_id,
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target_id,
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access_type: 'deny',
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active: true,
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})
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return policies.length === 0
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}
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static async check_entity_access(entity_id, target_id) {
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return (await this.check_allow(entity_id, target_id)) && !(await this.check_deny(entity_id, target_id))
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}
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static async check_user_access(user, target_id) {
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const groups = await user.groups()
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const group_ids = groups.map(x => x.id)
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const user_approvals = await this.find({
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entity_id: user.id,
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target_id,
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approval_type: 'allow',
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active: true,
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})
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const user_denials = await this.find({
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entity_id: user.id,
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target_id,
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approval_type: 'deny',
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active: true,
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})
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const group_approvals = await this.find({
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entity_id: { $in: group_ids },
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target_id,
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approval_type: 'allow',
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active: true,
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})
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const group_denials = await this.find({
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entity_id: { $in: group_ids },
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target_id,
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approval_type: 'deny',
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active: true,
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})
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// IF user has explicit denial, deny
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if ( user_denials.length > 0 ) return false
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// ELSE IF user has explicit approval, approve
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if ( user_approvals.length > 0 ) return true
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// ELSE IF group has denial, deny
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if ( group_denials.length > 0 ) return false
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// ELSE IF group has approval, approve
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if ( group_approvals.length > 0 ) return true
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// ELSE deny
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return false
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}
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async to_api() {
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let entity_display = ''
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if ( this.entity_type === 'user' ) {
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const User = this.models.get('auth:User')
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const user = await User.findById(this.entity_id)
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entity_display = `User: ${user.last_name}, ${user.first_name} (${user.uid})`
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} else if ( this.entity_type === 'group' ) {
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const Group = this.models.get('auth:Group')
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const group = await Group.findById(this.entity_id)
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entity_display = `Group: ${group.name} (${group.user_ids.length} users)`
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}
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let target_display = ''
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if ( this.target_type === 'application' ) {
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const Application = this.models.get('Application')
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const app = await Application.findById(this.target_id)
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target_display = `Application: ${app.name}`
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}
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return {
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id: this.id,
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entity_display,
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entity_type: this.entity_type,
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entity_id: this.entity_id,
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access_type: this.access_type,
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target_display,
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target_type: this.target_type,
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target_id: this.target_id,
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}
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}
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}
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module.exports = exports = PolicyModel
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