Splitting commands properly without losing double quoted strings

crc/scripts/email.py

@@ -73,19 +73,7 @@ Email Subject ApprvlApprvr1 PIComputingID
                            message="Email script requires at least one subject argument.  The "
                                    "name of the variable in the task data that contains subject"
                                    " to process. Multiple arguments are accepted.")
-
+        subject = args[0]
-        subject_index = 0
-        subject = args[subject_index]
-        if subject.startswith('"') and not subject.endswith('"'):
-            # Multi-word subject
-            subject_index += 1
-            next_word = args[subject_index]
-            while not next_word.endswith('"'):
-                subject = ' '.join((subject, next_word))
-                subject_index += 1
-                next_word = args[subject_index]
-            subject = ' '.join((subject, next_word))
-        subject = subject.replace('"', '')
         if not isinstance(subject, str):
             raise ApiError(code="invalid_argument",
                            message="The Email script requires 1 argument.  The "

crc/services/workflow_processor.py

@@ -1,4 +1,5 @@
 import re
+import shlex
 import xml.etree.ElementTree as ElementTree
 from datetime import datetime
 from typing import List
@@ -36,7 +37,9 @@ class CustomBpmnScriptEngine(BpmnScriptEngine):
 
         This allows us to reference custom code from the BPMN diagram.
         """
-        commands = script.split(" ")
+        # Shlex splits the whole string while respecting double quoted strings within
+        commands = shlex.split(script)
+        printable_comms = commands
         path_and_command = commands[0].rsplit(".", 1)
         if len(path_and_command) == 1:
             module_name = "crc.scripts." + self.camel_to_snake(path_and_command[0])