import sys
from pathlib import Path
from flask import Response
+import socket
+import ssl
+#Must exist
apipath=os.environ['APIPATH']
+#May exist
+remote_hosts_logging=os.getenv('REMOTE_HOSTS_LOGGING')
# Make sure the api path for the interface yaml file is set, otherwise exit
def check_apipath():
del arr[arr.index('start.sh')] # Remove the start script
return Response("Current interface: " + str(pp[len(pp)-1]) + " All supported A1 interface yamls in this container: "+str(arr), 200, mimetype='text/plain')
+# Remote host lookup and store host name in a set
+def extract_host_name(hosts_set, request):
+ if (remote_hosts_logging is not None):
+ host_ip=str(request.environ['REMOTE_ADDR'])
+ prefix='::ffff:'
+ if (host_ip.startswith('::ffff:')):
+ host_ip=host_ip[len(prefix):]
+ try:
+ name, alias, addresslist = socket.gethostbyaddr(host_ip)
+ hosts_set.add(name)
+ except Exception as e:
+ hosts_set.add(host_ip)
+ else:
+ hosts_set.add("logging_of_remote_host_names_not_enabled")
+
+# Check if cert is available and return a sec context, if not return 'None'
+def get_security_context():
+
+ try:
+ path="/usr/src/app/cert"
+ if (os.path.isdir(path)):
+ certpath=path+"/cert.crt"
+ keypath=path+"/key.crt"
+ if (os.path.isfile(certpath) and os.path.isfile(keypath)):
+ context = ssl.SSLContext(ssl.PROTOCOL_TLS)
+ context.load_cert_chain(certpath, keypath, password="test")
+ return context
+ else:
+ print("Cert and/or key does not exists in dir "+str(path))
+
+ else:
+ print("Path "+str(path)+" to certificate and key does not exists")
+ except Exception as e:
+ print("Problem when loading cert and key: "+str(e))
+ return None