Show error if instance URL not configured

Author: ColdHeat

ctfcli/__main__.py

@@ -16,7 +16,11 @@
 from ctfcli.cli.pages import PagesCommand
 from ctfcli.cli.plugins import PluginsCommand
 from ctfcli.cli.templates import TemplatesCommand
-from ctfcli.core.exceptions import MissingAPIKey, ProjectNotInitialized
+from ctfcli.core.exceptions import (
+    MissingAPIKey,
+    MissingInstanceURL,
+    ProjectNotInitialized,
+)
 from ctfcli.core.plugins import load_plugins
 from ctfcli.utils.git import check_if_dir_is_inside_git_repo
 
@@ -148,6 +152,10 @@ def main():
         if isinstance(ret, int):
             sys.exit(ret)
 
+    except MissingInstanceURL as e:
+        click.secho(e, fg="red")
+        sys.exit(1)
+
     except MissingAPIKey as e:
         click.secho(e, fg="red")
         sys.exit(1)

ctfcli/core/api.py

@@ -3,15 +3,18 @@
 from requests import Session
 
 from ctfcli.core.config import Config
-from ctfcli.core.exceptions import MissingAPIKey
+from ctfcli.core.exceptions import MissingAPIKey, MissingInstanceURL
 
 
 class API(Session):
     def __init__(self):
         config = Config()
 
         # Load required configuration values
-        self.url = config["config"]["url"]
+        try:
+            self.url = config["config"]["url"]
+        except KeyError:
+            raise MissingInstanceURL()
 
         try:
             self.access_token = config["config"]["access_token"]

ctfcli/core/exceptions.py

@@ -6,7 +6,16 @@
 class MissingAPIKey(Exception):
     def __str__(self):
         return (
-            "Missing API key. Please set the API key in your configuration file or set CTFCLI_ACCESS_TOKEN environment variable."
+            "Missing API key. "
+            "Please set the API key in your configuration file or set the CTFCLI_ACCESS_TOKEN environment variable."
+        )
+
+
+class MissingInstanceURL(Exception):
+    def __str__(self):
+        return (
+            "Missing CTFd instance URL. "
+            "Please set the instance URL in your configuration file or set the CTFCLI_URL environment variable."
         )