def read_card_data(csv_filename):
"return a dictionary of (username,key,allowed) indexed by hashed rfid"
try:
f = open(csv_filename)
lines = f.read().splitlines()
f.close()
except:
botlog.critical("authenticate can't read CSV %s" % csv_filename)
return {}
cd = {}
for l in lines[1:]:
try:
(username, value, key, allowed, hashedCard,
lastAccessed) = [x[1] for x in csv_line.findall(l)]
# throw away value(?) and lastAccessed
cd[hashedCard] = (username, allowed)
except:
botlog.error('authenticate CSV fail: %s' % l)
botlog.info("authenticate read CSV %s %d entries" %
(csv_filename, len(cd)))
return cd
def re_read_file(csv_filename=card_data_file):
"check the file and reload data if needed"
global card_data
global file_time
try:
fd = os.open(csv_filename, os.O_RDONLY)
fi = os.fstat(fd)
os.close(fd)
if fi.st_mtime > file_time:
card_data = read_card_data(csv_filename)
file_time = fi.st_mtime
except:
botlog.critical("authenticate can't fstat CSV %s" % csv_filename)
def re_read_file(csv_filename=card_data_file) :
"check the file and reload data if needed"
global card_data
global file_time
try :
fd = os.open(csv_filename,os.O_RDONLY)
fi = os.fstat(fd)
os.close(fd)
if fi.st_mtime > file_time :
card_data = read_card_data(csv_filename)
file_time = fi.st_mtime
except :
botlog.critical( "authenticate can't fstat CSV %s" % csv_filename)
def read_card_data(csv_filename) :
"return a dictionary of (username,key,allowed) indexed by hashed rfid"
try :
f = open(csv_filename)
lines = f.read().splitlines()
f.close()
except :
botlog.critical( "authenticate can't read CSV %s" % csv_filename)
return {}
cd = {}
for l in lines[1:] :
try :
(username,value,key,allowed,hashedCard,lastAccessed) = [x[1] for x in csv_line.findall(l)]
# throw away value(?) and lastAccessed
cd[hashedCard] = (username,allowed)
except :
botlog.error( 'authenticate CSV fail: %s' % l)
botlog.info( "authenticate read CSV %s %d entries" % (csv_filename, len(cd)))
return cd
