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#! /usr/bin/env python2
# -*- coding: utf8 -*-
#
# Copyright (C) 2015-2016 Evol Online
# Author: Andrei Karas (4144)
import os
import re
from src.preproc import PreProc
from src.utils import Utils
filt = re.compile(".+[.](c|h)", re.IGNORECASE)
class Brathena:
namedPackets = dict()
packetsSet = set()
outPacketsSorted = []
inPacketsSorted = []
inPackets = dict()
functionToId = dict()
loginPacketNameToId = dict()
getLenPackets = set()
knownLenPackets = 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(" cmd([ ]*)=([ ]*)0x(?P<packet>[0-9a-fA-F]+);")
ourPacketre5 = re.compile(
"(WFIFOW|WBUFW)([ ]*)[(]([ ]*)([\w>_-]+),([ ]*)" +
"(count[*]p_len)([ ]*)[)]([ ]*)=([ ]*)(?P<packet>[0-9\w]+)([ ]*)[;]")
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_>-]+)([ ]*)[}],")
packetLenre = re.compile(
"packet_db[\\[]0x(?P<packet>[0-9a-fA-F]+)[\\]].len")
clientpacketLenre = re.compile(
"(\t*)packet[(]0x(?P<packet>[0-9a-fA-F]+),(?P<len>[\w-]+)" +
"[)]")
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 == "000j":
return
if data in self.namedPackets:
for val in self.namedPackets[data]:
if int(val, 16) > 4096:
return
self.packetsSet.add(val)
else:
if len(data) > 2 and data[:2] == "0x":
data = data[2:]
while len(data) < 4:
data = "0" + data
try:
if int(data, 16) > 4096:
return
except:
pass
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.ourPacketre5.findall(line)
if len(m) > 0:
for str in m:
data = str[9]
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)
m = self.packetLenre.findall(line)
if len(m) > 0:
for str in m:
data = str.lower()
if len(data) > 2 and data[0:2] == "0x":
data = data[2:]
while len(data) < 4:
data = "0" + data
self.getLenPackets.add(data)
def sortOutPackets(self):
for packet in self.packetsSet:
self.outPacketsSorted.append(packet)
self.outPacketsSorted.sort()
def collectInPackets(self, packetsH):
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
m = self.clientpacketLenre.search(line)
if m is not None:
data = m.group("packet").lower()
while len(data) < 4:
data = "0" + data
self.knownLenPackets[data] = int(m.group("len"))
def collectCharInPackets(self, charFilePackets):
for packets in Utils.enumCasePackets(charFilePackets, "int char_parse_char(int fd)"):
self.inPackets[packets[1]] = (0, packets[0])
self.functionToId[packets[0]] = packets[1]
def sortInPackets(self):
for packet in self.inPackets:
self.inPacketsSorted.append(packet)
self.inPacketsSorted.sort()
def processPackets(self, packetDir, packetVersion):
namedPacketsPath = packetDir + "/src/" + self.dirName + "/packets_struct.h"
srcPath = packetDir + "/src/" + self.dirName
serverInPacketsHPath = packetDir + "/src/" + self.dirName + "/packets.h"
serverCharPackets = packetDir + "/src/" + self.dirName + "/char.c"
self.collectNamedPackets(namedPacketsPath)
self.collectOutPackets(srcPath)
self.collectInPackets(serverInPacketsHPath)
self.collectCharInPackets(serverCharPackets);
self.sortInPackets()
self.sortOutPackets()
def prepareTempFiles(self, codeDir, packetDir, packetVersion):
proc = PreProc()
proc.init(packetDir + "/src/" + self.dirName)
proc.defines = "-DPACKETVER=" + packetVersion + " -DCOMMON_SOCKET_H -DWFIFOW\\(fd,pos\\)=WFIFOW\\(fd,pos\\) -DWBUFW\\(p,pos\\)=WBUFW\\(p,pos\\)"
proc.includes = "-I../links/" + codeDir + "/src -I../links/" + codeDir + "/3rdparty"
proc.inDir = "../links/" + codeDir + "/src/"
proc.outDir = packetDir + "/src/" + self.dirName + "/"
proc.run("map", "packets_struct.h");
proc.run("char", "char.c");
proc.run("char", "pincode.c");
proc.run("login", "login.c");
proc.run("map", "clif.c");
proc.defines = "-DPACKETVER=" + packetVersion + " -Dpacket\\(...\\)=packet\\(__VA_ARGS__\\)"
proc.run("map", "packets.h");
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