Add endpoint for Bearer authentication

Closes #385

httpbin/core.py

@@ -454,6 +454,20 @@ def hidden_basic_auth(user='user', passwd='passwd'):
     return jsonify(authenticated=True, user=user)
 
 
+@app.route('/bearer')
+def bearer_auth():
+    """Authenticates using bearer authentication."""
+    if 'Authorization' not in request.headers:
+        response = app.make_response('')
+        response.headers['WWW-Authenticate'] = 'Bearer'
+        response.status_code = 401
+        return response
+    authorization = request.headers.get('Authorization')
+    token = authorization.lstrip('Bearer ')
+
+    return jsonify(authenticated=True, token=token)
+
+
 @app.route('/digest-auth/<qop>/<user>/<passwd>')
 def digest_auth_md5(qop=None, user='user', passwd='passwd'):
     return digest_auth(qop, user, passwd, "MD5", 'never')