I have created a new url/route in my app where I need to write a web-service. I need to write a service that deletes user according to the parameters passed in the service. For now, anyone should be able to call that service (will make it secure at later stage). App is built on meteor.
My url is : loaclhost:3000/deleteUser. Now one should be able to call my delete user function defined on this page and pass json structure data as an argument to it. If the data is valid, then the user should be deleted.
Using simple:rest package
Meteor.publish("delUser", function (a, b) {
UserDetails.remove({}); //delete user according to data received
}, {
url: "/testing/delUser", //url where third party will call the function
getArgsFromRequest: function (request) {
// Let's say we want this function to accept a form-encoded request
// with fields named `a` and `b`.
console.log('received : ' + JSON.stringify(request.body) );
var content = request.body;
// Since form enconding doesn't distinguish numbers and strings, we need
// to parse it manually
return [content.a, content.b];
}
})
How to access the function, delUser from a thrid party? I also need to add authentication at a later stage.
Personnally, I use this :
simple:rest
simple:json-routes
simple:rest-accounts-password
I find it easier to implement.
even iron:router comes with server side routes where you can build your own functions and api calls.
http://iron-meteor.github.io/iron-router/#restful-routes
Sample (Server side code) :
Router.map(function () {
this.route("api", {path: "/api/:paramsYouNeed",
where: "server",
action: function(){
this.response.writeHead(200, {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
});
if (this.request.method == 'POST') {
var response;
//do whatever you want to do
this.response.end(response);
}
}
});
The other user can call this by making a http.post request to the above url (http:www.a****a.com/api/params)
The easiest way to do this is use the restivus package.
https://atmospherejs.com/nimble/restivus
Restivus makes building REST APIs in Meteor 0.9.0+ easier than ever
before! The package is inspired by RestStop2 and Collection API, and
is built on top of Simple JSON Routes to provide:
A simple interface for creating REST APIs
Easy setup of CRUD endpoints for Mongo Collections
User authentication via the API
Optional login and logout endpoints
Access to this.user in authenticated endpoints
Custom authentication if needed
Role permissions for limiting access to specific endpoints
Works alongside the alanning:roles package - Meteor's accepted role permission package
Related
We have an ASP.NET Core 5 Rest API where we have used a pretty simple route:
[Route("api/[controller]")]
The backend is multi-tenant, but tenant-selection has been handled by user credentials.
Now we wish to add the tenant to the path:
[Route("api/{tenant}/{subtenant}/[controller]")]
This makes cross-tenant queries simpler for tools like Excel / PowerQuery, which unfortunately tend to store credentials per url
The problem is to redirect all existing calls to the old route, to the new. We can assume that the missing pieces are available in the credentials (user-id is on form 'tenant/subtenant/username')
I had hope to simply intercept the route-parsing and fill in the tenant/subtenant route values, but have had not luck so far.
The closes thing so far is to have two Route-attributes, but that unfortunately messes up our Swagger documentation; every method will appear with and without the tenant path
If you want to transparently change the incoming path on a request, you can add a middleware to set Path to a new value, for example:
app.Use(async (context,next) =>
{
var newPath = // Logic to determine new path
// Rewrite and continue processing
context.Request.Path = newPath;
await next();
});
This should be placed in the pipeline after you can determine the tenant and before the routing happens.
Problem:
Due to legislation I have to store personal information within the EU (Social security number). Therefore I can't store this information in Firebase since there is no guarantee of geographical datacenter location when using Google's cloud services.
My proposed solution:
Having a Redis key value store with the sensitive information that can be accessed via a simple REST api where user authentication would be achieved using the users ID token, sent via HTTP Headers.
Firebase allows for verification of a user via the verifyIdToken method in the NodeJS library. This would allow me to check if the user ID matches any user id in my /admin end point of my Firebase. (Or I could hardcode the userIDs that would be allowed into the server since there aren't that many.)
So, the flow of the request would be as follows:
User signs in client side using the Firebase SDK.
Whenever the user needs access to the sensitive information it first gets the user's ID token
let currentUser = FIRAuth.auth()?.currentUser
currentUser?.getTokenForcingRefresh(true) {idToken, error in
if let error = error {
return
}
let headers = [
"X-FBUser-Token":idToken
]
//build request here to https://myServer.com/myEndpoint
}
Then server side we would retrieve the request
app.get('/myEndpoint', function(req, res) {
let idToken = req.get('X-FBUser-Token')
verifyToken(idToken, function(isAdmin){
if (isAdmin) {
//Fetch the key value pair and send it back to the client here
}
})
})
function verifyToken(idToken, cb) {
firebase.auth().verifyIdToken(idToken).then(function(decodedToken) {
var uid = decodedToken.sub;
firebase.database().ref('admins/' + uid).on('value', function (snap){
cb(snap.val() !== null)
})
}).catch(function(error) {
// Handle error
});
}
And then the client would receive back the response and deal with it. Everything done over HTTPS ofcourse.
Note: I know that the code above is rather crude and would need some refinement, but hopefully you get the concept
My questions:
First of all, is this a safe way of doing things?
Is there a better, more straight forward approach?
new to meteor and mongo.
I have some JSON stored in mongo that I want to publicly expose via an obfuscated token without using something like:
//app/models/stuff.js
Stuff = new Mongo.Collection("stuff");
Meteor.publish("stuff", function (){
return Stuff.find();
});
//additionally, the client-side subscription
I only want to expose the files that the client directly requests via a URL routing parameter or some sort of client side identifier (like a textfield where you can type the code/token in)
e.g., http://website.com/view/abcdefghijklmnop
Anyone with knowledge of the link can type it in, and get the file. However, there should be no way to just get every file without being given every token.
I was wondering if this was the best way to accomplish the task:
//app/server/stuff.js
Meteor.methods({
getStuff: getStuff
});
function getStuff(stuffId) {
var result = Stuff.find({_id: stuffId});
return result;
}
then
//app/client/stuff.js
var json = Meteor.call('getStuff', 'abcdefghijklmnop');
Why not just publish the requested document?
Meteor.publish('stuff', function (id){
check(id, String);
return Stuff.find(id);
});
Im working on ember-cli, how do i change rest call on fly in the rest adapter. If i use path params not query params?for example:
export default DS.RESTAdapter.extend({
namespace:'res/v1/users/id',
pathForType: function() {
return Ember.String.underscore("friends");},});
Based on the user selection from dropdown we get the "id", using the id I need to get user friends from the database.
Could you please suggest a better way to do. My aapplication supports pathparams not the query params
To customize the URL, override the buildURL method in your adapter.
The tricky part is to access related records from the adapter. For example, you request friends for a given user. You work in a friend adapter, but you need to know the user's id to include it in the URL.
For that purpose, use the record property on the snapshot argument of the buildURL method.
Alternatively, you might want to override some of buildURL's underlying methods such as urlForFindQuery, depending on how you request your model from the store. With a find.query(), you will retrieve the id of the user from the query.
If this does not help you, please respond with the way you're trying to fetch friends from the store.
I have created a variable in enviroment.js 'userId'. When ever i select a user
i set config.userId in the controller to the corresponding Id.
config.userId=this.get('selectedUser');
In pathforType of adapter I used this varible
pathForType: function() {
return Ember.String.underscore(config.userId+"/friends");
}
you just need to add an import statement
import config from '../config/environment';
Please suggest me if anyone get to know better way. Thanks all for your responses
buildURL() only takes the type imo. so you have to pass some more jazz.
i did something along the lines of the following in the application adapter
$ ember generate adapter application
app/adapters/application.js
import DS from 'ember-data';
export default DS.RESTAdapter.extend({
findQuery: function(store, type, query) {
var urlQuery = query.theshityouwant;
var reply = this.ajax(this.buildURL(type.typeKey + '/' + urlQuery), 'GET', { headers: all});
return reply;
},
})
});
I have a Web API app, initialized thusly:
app.UseCookieAuthentication();
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
app.UseOAuthBearerTokens(OAuthOptions);
app.UseGoogleAuthentication();
For calls to most controllers, it works great. However, it also requires a bit of javascript before client-side service calls are made:
function getSecurityHeaders() {
var accessToken = sessionStorage["accessToken"] || localStorage["accessToken"];
if (accessToken) {
return { "Authorization": "Bearer " + accessToken };
}
return {};
}
The problem is that we have a certain type of controller (one that accesses files) where no javascript can be run during the call. For example, the call might be to:
http://mysite/mycontroller/file/filename.jpg
...where the value is assigned as the src attribute of an img tag. The call works, but Thread.CurrentPrincipal.Identity is unauthenticated with a null name, so there's currently not a way to enforce security.
I'm new to Web API, so it may be a dumb question, but what's the way around this? What switches do I need to flip to not require javascript to add security headers? I was considering trying to find a way to force an authorization header in an IAuthorizationFilter or something, but I'm not even sure that would work.
So I figured out the solution to my problem.
First, I needed to configure the app to use an authentication type of external cookies thusly:
//the line below is the one I needed to change
app.UseCookieAuthentication(AuthenticationType = DefaultAuthenticationTypes.ExternalCookie);
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
app.UseOAuthBearerTokens(OAuthOptions);
app.UseGoogleAuthentication();
Second, it turned out there was a line of code in my WebApiConfig file that was disabling reading the external cookie:
//this line needed to be removed
//config.SuppressDefaultHostAuthentication();
After that, I could see the external cookie from Google, which passed along an email address I could identify the user with.