scanSWFs.py

# SWF scanner by nosamu
# Dumps a CSV file with the filename, width and height (in pixels), 
# and AS3 flag of each SWF in the current folder.
# Requires Flasm: http://www.nowrap.de/flasm.html

import os
import shutil
import subprocess
import re
import csv

CSV_FILENAME = 'swf_info.csv'

csv_fields = ['filename', 'width', 'height', 'has AS3']
csv_data = []

# If you specify the path to Flasm below, the script won't need to prompt you for it.
# Remember to double up any backslashes! Example: 'C:\\FlasmFolder'. Relative paths also work.
# Another option is to edit your PATH variable to include the folder path to Flasm.
flasm_path = ''
while not os.path.isfile(flasm_path):
	flasm_path = shutil.which('flasm', path=flasm_path) or shutil.which('flasm')
	if not flasm_path:
		flasm_path = input('Enter the path to the Flasm executable: ')

filenames = os.listdir()
for filename in filenames:
	if os.path.splitext(filename)[1] == '.swf':
		print("Scanning", filename, '...')
		flasm_command = [flasm_path, '-d', filename]
		try: 
			disassembly = subprocess.check_output(flasm_command, errors='ignore', timeout=10, text=True)
		except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
			disassembly = None
		if disassembly:
			disassembly_lines = disassembly.splitlines()
			header = disassembly_lines[0]
			attributes = disassembly_lines[2]

			header_regex = ', (\\d*\\.?\\d+)x(\\d*\\.?\\d+) px'
			width, height = re.search(header_regex, header).group(1, 2)
			hasAS3 = (attributes.find('attrActionScript3') != -1)
		else:
			width, height, hasAS3 = ('Unknown', 'Unknown', 'Unknown')

		print(filename, width, height, hasAS3)
		csv_data.append([filename, width, height, hasAS3])

if os.path.isfile('flasm.tmp'):
	os.remove('flasm.tmp')

with open(CSV_FILENAME, 'w', encoding='utf-8', newline='') as csvfile: 
	csvwriter = csv.writer(csvfile)  
	csvwriter.writerow(csv_fields) 
	csvwriter.writerows(csv_data)
	print(f'Info exported to {CSV_FILENAME}.')