fix: Fix error in which channel names would not have the leading "#" removed (#4664)

* Fix failing entrypoint into slack connector

* Pre-filter channel names upon instantiation of slack connector class

* Add decrypt script

* Add slack connector tests

* Fix mypy errors on decrypt.py

* Add property to SlackConnector class

* Add some basic tests

* Move location of tests

* Change name of env token

* Add secrets for Slack

* Add more parameterized cases

* Change env variable name

* Change names

* Update channel names

* Edit tests

* Modify tests

* Only import type in __main__

* Fix tests to actually test connectors

* Pass parameter to fixture directly

backend/scripts/decrypt.py

@@ -0,0 +1,48 @@
+import binascii
+import json
+import sys
+
+from onyx.utils.encryption import decrypt_bytes_to_string
+
+
+def decrypt_raw_credential(encrypted_value: str) -> None:
+    """Decrypt and display a raw encrypted credential value
+
+    Args:
+        encrypted_value: The hex encoded encrypted credential value
+    """
+    try:
+        # If string starts with 'x', remove it as it's just a prefix indicating hex
+        if encrypted_value.startswith("x"):
+            encrypted_value = encrypted_value[1:]
+        elif encrypted_value.startswith("\\x"):
+            encrypted_value = encrypted_value[2:]
+
+        # Convert hex string to bytes
+        encrypted_bytes = binascii.unhexlify(encrypted_value)
+
+        # Decrypt the bytes
+        decrypted_str = decrypt_bytes_to_string(encrypted_bytes)
+
+        # Parse and pretty print the decrypted JSON
+        decrypted_json = json.loads(decrypted_str)
+        print("Decrypted credential value:")
+        print(json.dumps(decrypted_json, indent=2))
+
+    except binascii.Error:
+        print("Error: Invalid hex encoded string")
+
+    except json.JSONDecodeError as e:
+        print(f"Decrypted raw value (not JSON): {e}")
+
+    except Exception as e:
+        print(f"Error decrypting value: {e}")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: python decrypt.py <hex_encoded_encrypted_value>")
+        sys.exit(1)
+
+    encrypted_value = sys.argv[1]
+    decrypt_raw_credential(encrypted_value)