Improve UniqueNodeError for usability

src/cript/api/rest.py

@@ -56,7 +56,9 @@ def __init__(self, host: str = None, token: str = None, tls: bool = True):
         try:
             response = self.session.get(f"{self.url}/session-info/")
         except Exception as e:
-            raise APIError("Connection API failed, please review your host and token") from e
+            raise APIError(
+                "Connection API failed, please review your host and token"
+            ) from e
         if response.status_code == 200:
             response_json = response.json()
             self.latest_api_version = response_json["latest_version"]

src/cript/data_model/exceptions.py

@@ -1,3 +1,5 @@
+import re
+import warnings
 from cript.exceptions import CRIPTError
 
 
@@ -9,6 +11,24 @@ class UniqueNodeError(CRIPTError):
 
     def __init__(self, message):
         self.message = message
+        self.existing_url = None
+        url_find_pattern = (
+            r"[(https://)|\w]*?[\w]*\.[-/\w]*\.\w*[(/{1})]?[#-\./\w]*[(/{1,})]?"
+        )
+        all_urls = re.findall(url_find_pattern, message)
+        if len(all_urls) > 0:
+            if len(all_urls) > 1:
+                warning.warn(
+                    "UniqueNodeError found more than one possible URL of a unique node. Please report this bug here: https://github.com/C-Accel-CRIPT/cript/issues Thank you."
+                )
+            self.existing_url = all_urls[0]
+            while self.existing_url[-1] == ".":
+                self.existing_url = self.existing_url[:-1]
+
+        if self.existing_url is None:
+            warnings.warn(
+                "UniqueNodeError failed to extract unique URL of existing node, please report this bug here: https://github.com/C-Accel-CRIPT/cript/issues Thank you."
+            )
 
     def __str__(self):
         return self.message

src/cript/storage_clients/globus.py

@@ -6,7 +6,11 @@
 from globus_sdk.scopes import ScopeBuilder
 
 from cript.data_model.nodes.base_node import BaseNode
-from cript.storage_clients.exceptions import InvalidAuthCode, FileUploadError, FileDownloadError
+from cript.storage_clients.exceptions import (
+    InvalidAuthCode,
+    FileUploadError,
+    FileDownloadError,
+)
 
 
 logger = getLogger(__name__)