I want to consume a OAuth secured SOAP API in Mule 4. I want to know how can I pass the bearer token in a header.
I tried almost all the things by using transport header and writing as edit inline with key as Authorization and value as Bearer TOKEN_VALUE.
However nothing is working. Let me know how to consume it.
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For projects that will take place in the future, it is important that my own REST server will be created. Now, I have been working on this for a few weeks, and everything concerning the REST server is ready. I can give requests and receive responses. I am just missing the security through OAuth2.
After some research, I found the authorization server from carlosHE. Now, I have everything installed in Delphi, but I do not understand how I can get the authorization workable for my REST server.
Are there people who have experience with applying the OAuth2 protocol to REST servers using carlosHE/oauth2-server? Or, maybe there are other ways that work?
Draft answer:
The client must get an access token from the OAuth2 server. (how to authenticate the client is a different question)
The access token must be stored server-side, so that the REST server can validate client REST requests.
The client then can send REST requests which contain the access token. (typically sent as a HTTP header value)
I am learning about CSRF Tokens and how they help secure your web application. I understand the basics of it, but I am confused as to how it works in practice when the web server and api are separate. In practice how is the token generated, added to the HTML and known by the API?
For example, if I host my web app on something like Nginx or S3 and serve APIs via Spring Boot, how does the HTML with the embedded token get generated and passed to the client? Would the Sprint Boot API need to generate the token and HTML and return that to the client? Is there a different flow that am I missing? If this is the case, what is the point of it being embedded in HTML at all?
All of the documentation I have read assumes you are using something like MVC or skips over this entirely.
CSRF protection is only necessary for requests made by a client (for example, a browser) that silently adds credentials for the current user, by sending a session cookie, resending username and password that were previously typed in ("Basic Authentication") or by including a client certificate. This is because users may be tricked into making unwanted such requests by visiting a malicious web page, and these unwanted requests are then made with their credentials, that is, on their behalf.
For requests made by your web server to an API endpoint, this does not apply, therefore the API endpoint need not offer CSRF protection. A web server cannot be tricked into making unwanted requests.
Or can it? Imagine that the web server offers a "proxy" endpoint that converts incoming requests into requests to the API endpoint, and that sends the API response back to the client:
Client --request--> web server --converted request--> API endpoint
Client <--converted response-- web server <--response-- API endpoint
Further imagine that, as part of the request conversion, credentials from the client are forwarded to the API. For example, a session cookie coming from the browser is converted into an Authorization: Bearer <jwt> header that is sent to the API endpoint. Then an unwanted request to the web server endpoint with credentials effectively becomes a request to the API, and a new CSRF vulnerability has appeared: this time on the web server.
The web server must then protect its own "proxy" endpoint against CSRF by issuing and validating a CSRF token.
I'm using Vapor to handle http requests. I've implemented a registration and login, as well as other functioning code. On registration, a Bearer Token is generated, so I can return that to or write it into the page I'm about to render.
The page contains two forms, one of which generates a request that requires authorization, so I need to associate that request with the bearer token. How do I do this? Through explicitly setting headers for the form request that will be sent to the server? Via a cookie?
If you're writing a traditional web app using HTML then bearer authentication is not suitable as you can't attach custom headers with requests. You should use session based authentication as described in the docs
I have written a web application which makes REST API calls to a message broker. The message broker contains already written REST APIs to which can be used to get message broker data. The message broker is written in a way in which each REST API call sends the user name and password which is encoded with base64. I need to make a login to my web app and authenticate it with OAuth.Does anyone know how to do this? How to authenticate the REST APIs with OAuth?
Step 1: Add OAuth 2.0 to your web server. This is very standard with lots of libraries available. You did not specify the Identity Provider that you will use (Google, Facebook, Auth0, Okta, etc), but each vendor has documents and libraries for you to use in your desired language.
Step 2: Add an Authorization Header to your API calls. The standard method is to add the HTTP header Authorization: Bearer access_token when making an API call.
Step 3: Add OAuth token verification to your API. When your API receives a request, it extracts the Authorization header and verifies the Bearer token. How this is done depends on the Identity Provider. For example, some vendors provide a Signed JWT (which you verify with the vendors public certificate), others provide an opaque access token (which you verify by calling the vendor's token endpoint). Add internal caching of tokens so that you don't need to verify on every API call.
If you understand OAuth 2.0 the above steps are straightforward to implement. If you don't Oracle has a set of videos which are excellent for getting started understanding OAuth.
Oracle Cloud Primers
If your desired OAuth implementation does not require users logging in and is a server to server service that you control on both ends, then you can use just part of OAuth which is Signed JWT (JWS). You create a Json data structure with your desired content and sign it with a private key. This creates a token that you can use in the above steps. You would then validate the token using your public key. You can use self-generated keypairs generated by OpenSSL or similar products for your signing and verification.
I'm logging my users in using SOAP in my app. But then I want to use Analytics API, which is REST. But I don't want them to enter their credentials all over again.
Is there a way that I can use my already obtained SOAP sessionId as the token for REST API?
When I tried to do that, I got an authentication error back from the REST call. Did I miss something or is it just not possible?
Yes its possible, just use the SOAP session Id in the same place you'd use a access token you'd gotten via OAuth, by adding a Authorization: Bearer {sessionId} HTTP header to your REST API requests.