_ _ _ ____ _ _
/ \ _ __ ___ | |_| |__ ___ _ __ | _ \ _ __ ___ (_) __| |
/ _ \ | '_ \ / _ \| __| '_ \ / _ \ '__| | | | | '__/ _ \| |/ _\` |
/ ___ \| | | | (_) | |_| | | | __/ | | |_| | | | (_) | | (_| |
/_/ \_\_| |_|\___/ \__|_| |_|\___|_| |____/|_| \___/|_|\__,_|
bbs
XQTRs lair...
as i am learning python, i made this simple lib/program to read a JAM
base. it can read the header file and also read info/text from a
message. for sure i will evolve it and make it even better, but for
the purposes of the mag, is enough for now. just change the file name
of the jam base and test it yourself.
you can use it freely. u can read message text and make all sort of
things with it, in your projects.
python is a "universal" programming language now days, so expect more
things written in python also.
--- cut here ---------------------------------------------------------------
#!/usr/bin/python3
import struct
from datetime import datetime
import os
jam_local = int('00000001',16)
jam_intransit = int('00000002',16)
jam_priv = int('00000004',16)
jam_rcvd = int('00000008',16)
jam_sent = int('00000010',16)
jam_killsent = int('00000020',16)
jam_achvsent = int('00000040',16)
jam_hold = int('00000080',16)
jam_crash = int('00000100',16)
jam_imm = int('00000200',16)
jam_direct = int('00000400',16)
jam_gate = int('00000800',16)
jam_freq = int('00001000',16)
jam_fattch = int('00002000',16)
jam_truncfile = int('00004000',16)
jam_killfile = int('00008000',16)
jam_rcptreq = int('00010000',16)
jam_confmreq = int('00020000',16)
jam_orphan = int('00040000',16)
jam_encrypt = int('00080000',16)
jam_compress = int('00100000',16)
jam_escaped = int('00200000',16)
jam_fpu = int('00400000',16)
jam_typelocal = int('00800000',16)
jam_typeecho = int('01000000',16)
jam_typenet = int('02000000',16)
jam_nodisp = int('20000000',16)
jam_locked = int('40000000',16)
jam_deleted = int('80000000',16)
base_filename = ''
mbase_header=dict()
msg_header=dict()
# mbase_header["signature"]
# mbase_header["created"]
# mbase_header["modcounter"]
# mbase_header["activemsgs"]
# mbase_header["passwordcrc"]
# mbase_header["basemsgnum"]
#functions for msg attributes
def isdeleted():
global msg_header
if (jam_deleted & msg_header["attr1"] ) != 0:
return True
else:
return False
def islocal():
global msg_header
if (jam_local & msg_header["attr1"] ) != 0:
return True
else:
return False
def isreceived():
global msg_header
if (jam_rcvd & msg_header["attr1"] ) != 0:
return True
else:
return False
# read the header file and get info
# returns 0 if is succesful, -1 if file doesn't exist and -2 if file
# is not valid jam base
def get_msg_base_hdr(filename):
global mbase_header
global base_filename
base_filename = filename
filename = filename + '.jhr'
if os.path.exists(filename) == False:
return -1
jamf = "ssssIIIII"
with open(filename, mode='rb') as file:
fileMsgHdr = file.read(struct.calcsize(jamf))
jam_hdr = struct.unpack(jamf, fileMsgHdr[0:24])
mbase_header["signature"] = jam_hdr[:4]
mbase_header["created"] = \
datetime.fromtimestamp(jam_hdr[4]).strftime('%Y-%m-%d %H:%M:%S')
mbase_header["modcounter"] = jam_hdr[5]
mbase_header["activemsgs"] = jam_hdr[6]
mbase_header["passwordcrc"] = jam_hdr[7]
mbase_header["basemsgnum"] = jam_hdr[8]
if mbase_header["signature"] == (b'J', b'A', b'M', b'\x00'):
return 0
else:
return -2
# read the message header
def read_msg_header(filename,num):
global msg_header
global base_filename
base_filename = filename
jdx_name = filename + '.jdx' # get header offset from index file
if os.path.exists(jdx_name) == False:
return -1
jdx = open(jdx_name,"rb")
jdx_size = os.path.getsize(jdx_name)
offset = (num - mbase_header["basemsgnum"])*8
if offset>jdx_size:
jdx.close()
return -2
jdx.seek((num - mbase_header["basemsgnum"])*8)
jdxf = "