koa-lusca
v2.2.0
Published
Web application security middleware for koa.
Downloads
45,220
Readme
koa-lusca
Web application security middleware for koa.
Fork from lusca, krakenjs/lusca#26.
Usage
var koa = require('koa');
var lusca = require('koa-lusca');
var app = koa();
app.use(lusca({
csrf: true,
csp: { /* ... */},
xframe: 'SAMEORIGIN',
p3p: 'ABCDEF',
hsts: { maxAge: 31536000, includeSubDomains: true },
xssProtection: true
}));
Setting any value to false
will disable it. Alternately, you can opt into methods one by one:
app.use(lusca.csrf());
app.use(lusca.csp({/* ... */}));
app.use(lusca.xframe({ value: 'SAMEORIGIN' }));
app.use(lusca.p3p({ value: 'ABCDEF' }));
app.use(lusca.hsts({ maxAge: 31536000 });
app.use(lusca.xssProtection();
API
lusca.csrf(options)
key
String - Optional. The name of the CSRF token added to the model. Defaults to_csrf
.secret
String - Optional. The key to place on the session object which maps to the server side token. Defaults to_csrfSecret
.impl
Function - Optional. Custom implementation to generate a token.
Enables Cross Site Request Forgery (CSRF) headers.
If enabled, the CSRF token must be in the payload when modifying data or you will receive a 403 Forbidden. To send the token you'll need to echo back the _csrf
value you received from the previous request.
lusca.csp(options)
options.policy
Object - Object definition of policy.options.policy
String, Object, or an Array - Object definition of policy. Valid policies examples include:{"default-src": "*"}
"referrer no-referrer"
[{ "img-src": "'self' http:" }, "block-all-mixed-content"]
options.reportOnly
Boolean - Enable report only mode.options.reportUri
String - URI where to send the report data
Enables Content Security Policy (CSP) headers.
Example Options
// Everything but images can only come from own domain (excluding subdomains)
{
policy: {
'default-src': '\'self\'',
'img-src': '*'
}
}
See the MDN CSP usage page for more information on available policy options.
lusca.xframe(value)
value
String - Required. The value for the header, e.g. DENY, SAMEORIGIN or ALLOW-FROM uri.
Enables X-FRAME-OPTIONS headers to help prevent Clickjacking.
lusca.p3p(value)
value
String - Required. The compact privacy policy.
Enables Platform for Privacy Preferences Project (P3P) headers.
lusca.hsts(options)
options.maxAge
Number - Required. Number of seconds HSTS is in effect.options.includeSubDomains
Boolean - Optional. Applies HSTS to all subdomains of the host
Enables HTTP Strict Transport Security for the host domain. The preload flag is required for HSTS domain submissions to Chrome's HSTS preload list
lusca.xssProtection(options)
options.enabled
Boolean - Optional. If the header is enabled or not (see header docs). Defaults to1
.options.mode
String - Optional. Mode to set on the header (see header docs). Defaults toblock
.
Enables X-XSS-Protection headers to help prevent cross site scripting (XSS) attacks in older IE browsers (IE8)
License
- Original License: Apache License, Version 2.0, Copyright (C) 2014 eBay Software Foundation
- Now: MIT