feat: Implement custom user agent (#253)

* Add first attempt of custom user agent

* Alter User-Agent value

* Add emnify to SDK name

* Modify user agent name

* Add updated VCR with new user agent header

Author: marwin-roth

emnify/api_manager.py

@@ -44,6 +44,9 @@ def _build_headers(token=''):
 
             emnify_constants.RequestDefaultHeadersKeys.XEmnOriginAppVersion.value:
                 emnify_constants.RequestDefaultHeadersValues.PYTHONSDK_VERSION.value,
+
+            emnify_constants.RequestDefaultHeadersKeys.USER_AGENT.value:
+                emnify_constants.RequestDefaultHeadersValues.USER_AGENT.value
         }
 
     def process_exception(self, response: requests.Response, client, data: dict = None, *args, **kwargs):

emnify/constants.py

@@ -1,3 +1,5 @@
+import platform
+import requests
 from enum import Enum
 from emnify.version import EMNIFY_PACKAGE_VERSION
 
@@ -39,13 +41,22 @@ class RequestDefaultHeadersKeys(ExtendedEnum):
     AUTHORIZATION = 'authorization'
     XEmnOriginApp = 'x-emn-origin-app'
     XEmnOriginAppVersion = 'x-emn-origin-app-version'
+    USER_AGENT = 'User-Agent'
 
 
 class RequestDefaultHeadersValues(ExtendedEnum):
     APPLICATION_JSON = 'application/json'
     BEARER_TOKEN = 'Bearer {}'
     PYTHONSDK_VERSION = EMNIFY_PACKAGE_VERSION
-    PYTHONSDK = 'PythonSDK'
+    PYTHONSDK = 'emnifyPythonSDK'
+
+    name_and_version = f"{PYTHONSDK}/{PYTHONSDK_VERSION}"
+    requests_user_agent = f" {requests.utils.default_user_agent()}"
+    python_version = f"Python {platform.python_version()}"
+    platform_info = f"{platform.system()}, {platform.release()}"
+    details = f" ({python_version}, {platform_info})"
+
+    USER_AGENT = f"{name_and_version}{requests_user_agent}{details}"
 
 
 class DeviceStatuses(ExtendedEnum):