Rewrite part 1

Let's try this again

core/utils.py

@@ -0,0 +1,23 @@
+import time
+import random
+
+# set global ID once for entire session
+try: GID
+except NameError:
+	GID = ''.join(random.choice("abcdefghijklmnopqrstupvxyz") for x in range(5))
+	print(f"NetDist: Set session ID to '{GID}'")
+
+def get_client_id():
+	global GID
+	return(f"netdist-{GID}")
+
+def get_new_job_id():
+	job_id = f"{get_client_id()}-{int(time.time()*1000)}"
+	time.sleep(0.1) # prevent ID mismatch, no matter how unlikely
+	return job_id
+
+def clean_url(raw, multi=False):
+	raw = raw.strip()
+	raw = raw.replace(' ', ',').replace('\n', ',').replace('\t', ',')
+	urls = [x.rstrip('/') for x in raw.split(',') if x.strip()]
+	return urls if multi else urls[0]