Update att open proxy error handling

Author: adfoster-r7

modules/auxiliary/scanner/wproxy/att_open_proxy.py

@@ -1,7 +1,13 @@
 #!/usr/bin/env python3
 
-from metasploit import module, probe_scanner
+import sys
+from metasploit import module
 
+dependencies_missing = False
+if sys.version_info >= (3, 8):
+    from metasploit import probe_scanner
+else:
+    dependencies_missing = True
 
 metadata = {
     'name': 'Open WAN-to-LAN proxy on AT&T routers',
@@ -41,7 +47,11 @@ def report_wproxy(target, response):
     module.report_vuln(target[0], 'wproxy', port=target[0])
 
 
-if __name__ == "__main__":
+def run():
+    if dependencies_missing:
+        module.log('Module dependencies missing, newer Python version 3.8 or above required', level='error')
+        return
+
     study = probe_scanner.make_scanner(
         # Payload and pattern are given and applied straight to the socket, so
         # they need to be bytes-like
@@ -50,3 +60,7 @@ def report_wproxy(target, response):
         onmatch=report_wproxy
     )
     module.run(metadata, study)
+
+
+if __name__ == "__main__":
+    run()