commit e3fe7ae7b44e9a1e2ac473588efdb3591332db42 Author: Darius Bacon darius@wry.me Date: Wed Apr 16 11:40:28 2014 -0700
clearer logic by eliminating checking_first_packet and bringing assignments to the same variable closer together --- oonib/daphn3.py | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-)
diff --git a/oonib/daphn3.py b/oonib/daphn3.py index 01f241e..9c5f290 100644 --- a/oonib/daphn3.py +++ b/oonib/daphn3.py @@ -17,13 +17,6 @@ def read_pcap(filename):
packets = rdpcap(filename)
- checking_first_packet = True - client_ip_addr = None - server_ip_addr = None - - ssl_packets = [] - messages = [] - """ pcap assumptions:
@@ -42,21 +35,23 @@ def read_pcap(filename): Minimally validate the pcap and also find out what's the client and server IP addresses. """ - for packet in packets: - if checking_first_packet: + ssl_packets = [] + client_ip_addr = None + server_ip_addr = None + for i, packet in enumerate(packets): + if i == 0: client_ip_addr = packet[IP].src - checking_first_packet = False - else: - if packet[IP].src != client_ip_addr: - server_ip_addr = packet[IP].src + elif packet[IP].src != client_ip_addr: + server_ip_addr = packet[IP].src
try: - if (packet[Raw]): + if packet[Raw]: ssl_packets.append(packet) except IndexError: pass
"""Form our list.""" + messages = [] for packet in ssl_packets: if packet[IP].src == client_ip_addr: messages.append({"client": str(packet[Raw])})