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#! /usr/bin/env python2
# -*- coding: utf8 -*-
#
# Copyright (C) 2015-2016 Evol Online
# Author: Andrei Karas (4144)
import os
import re
filt = re.compile(".+[.](c|h)", re.IGNORECASE)
class Hercules:
namedPackets = dict()
packetsSet = set()
outPacketsSorted = []
inPacketsSorted = []
inPackets = dict()
functionToId = dict()
loginPacketNameToId = dict()
namedPacketre = re.compile(
"((\t|[ ])*)(?P<name>[\w0-9_]+)([ ]*)=" +
"([ ]*)0x(?P<value>[0-9a-fA-F]+)")
ourPacketre = re.compile(
"(WFIFOW|WBUFW)([ ]*)[(]([ ]*)([\w>_-]+),([ ]*)" +
"(?P<offset>0)([ ]*)[)]([ ]*)=([ ]*)0x(?P<packet>[0-9a-fA-F]+)([ ]*)[;]")
ourPacketre2 = re.compile("PacketType([ ]*)=([ ]*)(?P<name>[\w_]+);")
ourPacketre3 = re.compile(
"(WFIFOW|WBUFW)([ ]*)[(]([ ]*)([\w>_-]+),([ ]*)" +
"(?P<offset>0)([ ]*)[)]([ ]*)=([ ]*)(?P<packet>[0-9\w]+)([ ]*)[;]")
ourPacketre4 = re.compile("int cmd([ ]*)=([ ]*)0x(?P<packet>[0-9a-fA-F]+);")
outPacketLoginre = re.compile(
"([ ]*)PACKET_ID_(?P<name>[A-Z0-9_]+)([ ]*)=" +
"([ ]*)0x(?P<packet>[0-9a-fA-F]+),")
serverpacketLoginOutre = re.compile("packet_id([ ]*)=([ ]*)(?P<name>[\w_]+);")
clientpacketre = re.compile(
"(\t*)packet[(]0x(?P<packet>[0-9a-fA-F]+),(?P<len>[\w-]+)" +
",(?P<function>[0-9a-zA-Z_>-]+)(,|[)])")
lclifPacketre = re.compile(
"([ ]*)[{][ ]PACKET_ID_CA_(?P<name>[A-Z0-9_]+),([^,]+)," +
"([ ]*)[&](?P<function>[0-9a-zA-Z_>-]+)([ ]*)[}],")
def collectNamedPackets(self, fileName):
with open(fileName, "r") as f:
for line in f:
m = self.namedPacketre.search(line)
if m is not None:
if m.group("name") not in self.namedPackets:
self.namedPackets[m.group("name")] = []
data = m.group("value").lower()
while len(data) < 4:
data = "0" + data
self.namedPackets[m.group("name")].append(data)
def addServerPacket(self, data):
if data in self.namedPackets:
for val in self.namedPackets[data]:
self.packetsSet.add(val)
else:
self.packetsSet.add(data.lower())
def collectOutPackets(self, parentDir):
files = os.listdir(parentDir)
for file1 in files:
if file1[0] == ".":
continue
file2 = os.path.abspath(parentDir + os.path.sep + file1)
if not os.path.isfile(file2):
if file2.find("/src/evol") <= 0:
self.collectOutPackets(file2)
elif filt.search(file1):
with open(file2, "r") as f:
for line in f:
m = self.ourPacketre4.findall(line)
if len(m) > 0:
for str in m:
data = str[2]
while len(data) < 4:
data = "0" + data
self.addServerPacket(data)
m = self.outPacketLoginre.findall(line)
if len(m) > 0:
for str in m:
data = str[4]
while len(data) < 4:
data = "0" + data
self.loginPacketNameToId["PACKET_ID_" + str[1]] = data
m = self.ourPacketre.findall(line)
if len(m) == 0:
m = self.ourPacketre3.findall(line)
if len(m) > 0:
for str in m:
if str[9] == "0":
continue
data = str[9]
if data == "cmd":
continue
while len(data) < 4:
data = "0" + data
self.addServerPacket(data)
m = self.ourPacketre2.findall(line)
if len(m) > 0:
for str in m:
if str[2] == "0":
continue
data = str[2]
if len(data) > 2 and data[0:2] == "0x":
data = data[2:]
while len(data) < 4:
data = "0" + data
self.addServerPacket(data)
m = self.serverpacketLoginOutre.findall(line)
if len(m) > 0:
for str in m:
if str[2] in self.loginPacketNameToId:
data = str[2]
data = self.loginPacketNameToId[data]
self.addServerPacket(data)
def sortOutPackets(self):
for packet in self.packetsSet:
self.outPacketsSorted.append(packet)
self.outPacketsSorted.sort()
def collectInPackets(self, packetsH, lclifPackets):
with open(packetsH, "r") as f:
for line in f:
m = self.clientpacketre.search(line)
if m is not None:
data = m.group("packet").lower()
while len(data) < 4:
data = "0" + data
self.inPackets[data] = \
(int(m.group("len")), m.group("function"))
self.functionToId[m.group("function")] = data
with open(lclifPackets, "r") as f:
for line in f:
m = self.lclifPacketre.search(line)
if m is not None:
name = "PACKET_ID_CA_" + m.group("name")
if name not in self.loginPacketNameToId:
print "Wrong login packet name: " + name
continue
data = self.loginPacketNameToId[name]
self.inPackets[data] = (0, m.group("function"))
self.functionToId[m.group("function")] = data
def sortInPackets(self):
for packet in self.inPackets:
self.inPacketsSorted.append(packet)
self.inPacketsSorted.sort()
def processPackets(self, packetDir, packetVersion):
namedPacketsPath = packetDir + "/src/packets_struct.h"
srcPath = packetDir + "/src"
serverInPacketsHPath = packetDir + "/src/packets.h"
serverLoginInPackets = packetDir + "/src/lclif.c"
self.collectNamedPackets(namedPacketsPath)
self.collectOutPackets(srcPath)
self.collectInPackets(serverInPacketsHPath, serverLoginInPackets)
self.sortInPackets()
self.sortOutPackets()
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