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context-access
Advanced tools
Powerful access control with a dead simple API. Build any access control scheme you need by allowing maps of arbitrary keys and values called contexts.
Using npm:
npm install context-access
Using component:
component install bloodhound/context-access
The simplest example is a traditional roles-based access control system:
var access = require('context-access');
access.allow({
url: '/public',
role: 'guest'
});
access.assert({
url: '/public'
});
// => false
The call to assert returns false
because the properties in the context
asserted do not match any allowed context. However, if we add a matching role
property:
access.allow({
url: '/public',
role: 'guest'
});
access.assert({
url: '/public',
role: 'guest'
});
// => true
You can imbricate arrays to alternate AND and OR operations when asserting:
["role1", "role1"] role1 AND role2
[["role1", "role2"]] role1 OR role2
["role1", ["role2", "role3"]] role1 AND (role2 OR role3)
access.allow({
url: '/private',
roles: [['manager', 'admin']]
});
access.assert({
roles: 'manager'
});
// => true
Use contexts to match routes in Express:
var app = require('express')();
var access = require('context-access');
// Allow users with manager or admin role to POST to /users
access.allow({
path: '/users',
method: [['GET', 'POST']]
role: [['manager', 'admin']],
});
// Route middleware
var authorize = function(req, res, next) {
var context = {
role: req.session.role, // admin
path: req.path, // /users
method: req.method // POST
};
if (access.assert(context)) {
return next();
}
else {
res.send(403, 'You must be an admin to do this!');
}
};
// Use route middleware
app.post('/users', authorize, function(req, res) {
// ...
});
Allow a given context when asserted.
Assert a given context. Returns true
or false
if it is allowed or denied.
If there's no definition for a key in the given context, then it is ignored.
Firefox, Chrome, Safari, IE9+
Tests are written with mocha and should using BDD-style assertions.
Run them with npm:
npm test
FAQs
Powerful access control with a dead simple API.
The npm package context-access receives a total of 6 weekly downloads. As such, context-access popularity was classified as not popular.
We found that context-access demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
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