Script to automatically ingest SKAN IDs from plist sources, and update xcode projects. Python3 with standard libs.

skanids.py

# Written by Justin Chines (@process) and Doug Kent
import argparse, os, re, plistlib, urllib.request

parser = argparse.ArgumentParser(description="Update an app Plist with new SKAdNetwork IDs from given sources.")
parser.add_argument("plist",
                    help="Path to the .plist that will be updated with IDs found in the sources.")
parser.add_argument("sources",
                    nargs='+',
                    help="Sources to load SKAdNetwork IDs from. Sources can be URLs or system paths")
args = parser.parse_args()


# Use regex to extract adnetwork ids
def extract_skanids(data: str) -> [str]:
    return re.findall("[a-z0-9]*\.skadnetwork", data)


skanids = set()

for source in args.sources:
    print("Loading: " + source)
    source = source.strip()
    if not source: continue  # skip newlines
    if os.path.isfile(source):
        with open(source, 'r') as f:
            data = f.read()
            skanids.update(extract_skanids(data))
    else:
        req = urllib.request.Request(source, headers={"User-Agent": "Mozilla/5.0"})
        data = urllib.request.urlopen(req).read().decode("utf-8")
        skanids.update(extract_skanids(data))

with open(args.plist, 'rb') as plist_file:
    plist = plistlib.load(plist_file)

old_skanids = set()
for item in plist['SKAdNetworkItems']:
    old_skanids.add(item['SKAdNetworkIdentifier'])

to_remove = old_skanids.difference(skanids)
to_add = skanids.difference(old_skanids)

print(f"\nRemoving: {len(to_remove)} items")
for item in to_remove:
  print(item)

print(f"\nAdding: {len(to_add)} items")
for item in to_add:
    print(item)

if len(to_add) or len(to_remove):
    print("\nSaving new plist")

    plist_data = [{'SKAdNetworkIdentifier': adid} for adid in sorted(skanids)]
    plist['SKAdNetworkItems'] = plist_data

    with open(args.plist, 'wb') as plist_file:
        plistlib.dump(plist, plist_file)

    print(f"{len(skanids)} SKAdNetwork IDs were saved.")
else:
    print("\nNothing to add or remove. Not updating plist.")