Add token validation endpoint

app/api/__init__.py

@@ -39,7 +39,7 @@ class ProtectedResource(Resource):
 
 def add_resources():
     from .resources.account import AccountResource, AccountListResource
-    from .resources.token import TokenResource
+    from .resources.token import TokenResource, ValidateTokenResource
     from .resources.device import (DeviceResource,
                                    DeviceRecordingResource,
                                    DeviceListResource)
@@ -47,6 +47,7 @@ def add_resources():
     api.add_resource(AccountResource, '/v1/accounts/<int:account_id>')
     api.add_resource(AccountListResource, '/v1/accounts')
     api.add_resource(TokenResource, '/v1/token')
+    api.add_resource(ValidateTokenResource, '/v1/token/validate')
     api.add_resource(DeviceResource, '/v1/devices/<int:device_id>')
     api.add_resource(DeviceRecordingResource,
                      '/v1/devices/<int:device_id>/recordings')

app/api/resources/swagger/validate_token_spec.yaml

@@ -0,0 +1,22 @@
+Validates token passed in Authorization header
+---
+tags:
+  - Token
+responses:
+  200:
+    description: Valid token
+    schema:
+      required:
+        - status
+        - message
+      properties:
+        status:
+          type: string
+          default: success
+        message:
+          type: string
+          default: Valid token
+  401:
+    description: Bad credentials
+    schema:
+      $ref: '#/definitions/UnauthorizedError'

app/api/resources/token.py

@@ -2,6 +2,7 @@ from flask_restful import Resource, abort
 from webargs import fields
 from webargs.flaskparser import use_args
 from flasgger import swag_from
+from app.api import ProtectedResource
 import app.accounts as accounts
 
 
@@ -25,3 +26,9 @@ class TokenResource(Resource):
                 return {'status': 'success', 'token': token}, 200
         except ValueError:
             abort(401, message='Invalid credentials', status='error')
+
+
+class ValidateTokenResource(ProtectedResource):
+    @swag_from('swagger/validate_token_spec.yaml')
+    def get(self):
+        return {'status': 'success', 'message': 'Valid token'}, 200