/
SecureUser.ts
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/
SecureUser.ts
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import { QueryTranslator } from "../datastore/QueryTranslator";
import { ISecureUser, IUserInfo } from "../interfaces";
enum USER_ROLE {
SYSTEM = 'SYSTEM', // SYSTEM ADMIN
ADMIN = 'ADMIN', // TENANT ADMIN
DESIGNER = 'DESIGNER'
}
/**
*
* Security Rules:
* Security Rules are by-passed if
* a. User is and Admin or System
* b. .env REQUIRE_AUTHENTICATION === 'false' || process.env.ENFORCE_SECURITY
*
* User can View/Assign Item if:
* 1. Item has no restrictions if (Assignee==null and CandidateUsers == null and CandidateGroups==null)
* 2. If user is has a group indicated in item.CandidateGroups
*
* User can Execute Item -- If user is the Assignee
*
* Scenarios:
* 1. User is Assignee
* Can Invoke/Complete Task
* Can Assign to another User
* 2. User is not Assignee but Can View (see rules above)
* Can Assign Task to either another user or self (Take Task)
* Then User can Invoke Task
* We may need to utilize Optimistic Lock pattern here, keep track of version # of the Instance and on update
* Warn the User that instance information has changed since last seen
*
* */
var byPass = false;
class SecureUser implements ISecureUser {
userName;
userGroups;
tenantId?;
modelsOwner?;
constructor(params: IUserInfo) {
Object.assign(this, params);
if (process.env.REQUIRE_AUTHENTICATION === 'false' || process.env.ENFORCE_SECURITY === 'false') {
console.log('****Security is disabled as requested in .env****');
byPass = true;
}
// else
// console.log('Security is enabled as requested in .env');
// console.log('new SecureUser', this);
}
static SystemUser() {
return new SecureUser({ userName: 'system', userGroups: [USER_ROLE.SYSTEM], tenantId: null, modelsOwner: null });
}
isAdmin(): boolean {
if (byPass)
return true;
return (this.userGroups.includes(USER_ROLE.ADMIN) || this.userGroups.includes(USER_ROLE.SYSTEM));
}
isSystem(): boolean {
if (byPass)
return true;
return (this.userGroups.includes(USER_ROLE.SYSTEM));
}
inGroup(userGroup) :boolean {
if (byPass)
return true;
return (this.userGroups.includes(userGroup))
}
/**
* alters the query adding conditions based on security rules
* @param query
* @returns query
*/
qualifyInstances(query) {
if (byPass)
return query;
if (this.tenantId)
query['tenantId'] = this.tenantId;
if (!this.isAdmin()) {
const grpQuery = [];
/* old
grpQuery.push({ 'items.assignee': null, 'items.candidateUsers': null, 'items.candidateGroups': null });
grpQuery.push({ 'items.assignee': this.userName });
grpQuery.push({ 'items.candidateUsers': this.userName, 'items.assignee': null });
this.userGroups.forEach(grp => {
grpQuery.push({ 'items.candidateGroups': grp, 'items.assignee': null });
});
query['$or'] = grpQuery;
*/
grpQuery.push({ 'items.assignee': null, 'items.candidateUsers': null, 'items.candidateGroups': null });
grpQuery.push({ 'items.assignee': this.userName });
grpQuery.push({ 'items.candidateUsers': this.userName});
this.userGroups.forEach(grp => {
grpQuery.push({ 'items.candidateGroups': grp});
});
query['$or'] = grpQuery;
}
return query;
}
/**
* alters the query adding conditions based on security rules
* @param query
* @returns query
*/
qualifyItems(query) {
if (byPass)
return query;
return this.qualifyInstances(query);
}
/**
* alters the query adding conditions based on security rules
* @param query
* @returns query
*/
qualifyStartEvents(query) {
if (!this.isAdmin()) {
const grpQuery = [];
grpQuery.push({ "events.candidateUsers": null, "events.candidateGroups": null ,"events.lane": null });
grpQuery.push({ 'events.candidateUsers': this.userName });
this.userGroups.forEach(grp => {
grpQuery.push({ 'events.candidateGroups': grp });
grpQuery.push({ 'events.lane': grp });
});
query['$or'] = grpQuery;
}
return query;
}
/**
* alters the query adding conditions based on security rules
* @param query
* @returns query
*/
qualifyDeleteInstances(query) {
if (this.isAdmin())
return this.qualifyInstances(query);
else
return false;
}
/**
* alters the query adding conditions based on security rules
* @param query
* @returns query
*/
qualifyModels(query) {
if (byPass)
return true;
if (this.modelsOwner)
query['owner'] = this.modelsOwner;
return query;
}
/**
*/
canModifyModel(name) {
if (this.isAdmin())
return true;
else
return false;
}
/**
*/
canDeleteModel(name) {
if (this.isAdmin())
return true;
else
return false;
}
/**
* alters the query adding conditions based on security rules
* @param query
* @returns query
*/
async qualifyViewItems(query) {
}
canInvoke(item) : boolean {
if (this.isAdmin())
return true;
else if (item.assignee == this.userName)
return true;
else
return false;
}
canAssign(item) : boolean {
if (this.isAdmin())
return true;
else if (item.assignee == this.userName)
return true;
else
{
let query={};
const grpQuery = [];
grpQuery.push({ 'items.assignee': null, 'items.candidateUsers': null, 'items.candidateGroups': null });
grpQuery.push({ 'items.candidateUsers': this.userName});
this.userGroups.forEach(grp => {
grpQuery.push({ 'items.candidateGroups': grp});
});
query['$or'] = grpQuery;
let trans=new QueryTranslator('items');
let dbQry=trans.translateCriteria(query);
return trans.filterItem(item,dbQry);
}
}
async canStart(name, startNodeId, user) { }
}
const SystemUser = new SecureUser({ userName: 'system', userGroups: [USER_ROLE.SYSTEM], tenantId: null, modelsOwner: null });
export {SecureUser,USER_ROLE , IUserInfo, SystemUser }