Comments (6)
Yes, the token is set whether or not you send it. This library asserts that the token was provided by the user.
It's clear that a "real" example is necessary here. I'll see if I can throw something together in shortly.
from csrf.
@stephenmathieson Awesome, thank you
from csrf.
When you say this library asserts that the token "was provided by the user", this validation is happening when you compare the submitted csrf token to the ctx.session.secret
, right? So is a new csrf token generated for every context, and validated against the session secret?
If this is the case, I don't see why we need to store the token client-side (in a hidden form field)
from csrf.
The token is salted with the secret. The token is unique per request/session. You need to pass the token to your client so it can send it back. The token validates that the user is who the user is claiming to be.
I think there's a misunderstanding of what this module helps you do. Are you familiar with what CSRF is? A good read/silly read is https://dev.to/rtfeldman/defense-against-the-dark-arts-csrf-attacks. I think it does a pretty good job at explaining what CSRF is/why you should protect against it.
from csrf.
I understand what CSRF protection does, I think I'm confused as to how long one particular csrf token is supposed to last. Should I be sending a new token with every request, or could I save a token when first loading the site, and keep sending that token back with each request (for as long as the user's session lasts)?
from csrf.
The token is valid for the duration of the user’s session in SPAs and for each request otherwise. Basically any time we can create a new token, we will.
from csrf.
Related Issues (20)
- option to disable ?_csrf= support HOT 1
- tests randomly fail HOT 2
- why change tokens on every request HOT 1
- Upgrading to Koa2.0 HOT 5
- Why assertCsrf method given a body value? HOT 1
- why deprecate csrf@2 HOT 8
- Importing koa-csrf in node 6 HOT 1
- csrf(app) csrf is not a function
- Add option for verifying csrf token in certain types request only HOT 3
- I always get "Invalid CSRF token" following the example HOT 1
- CSRF is not a constructor HOT 2
- How do I get the CSRF token from the request body? HOT 7
- Use with koa-router HOT 1
- Question: omitted options do not set defaults in this.tokens HOT 1
- Can i disable CSRF check for some routes? HOT 6
- Enable csrf per route example HOT 1
- Use of koa-session instead koa-generic-session HOT 2
- Add csrf token in ctx.state HOT 4
- Exclude route HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from csrf.