CoreID/app/models/iam/Policy.model.js

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