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nfc.py
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nfc.py
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#coding=utf-8
import sys
import time
import requests
from smartcard.System import readers
from smartcard.util import toHexString, toBytes, HEX, PACK
from search_map import trade_type2str, create_card_info, read_tag, create_identityCard_info
import send_mails
def _card_type(typeStr): #银行卡类型标注
# example: 'PBOC DEBIT' ==> 'PBOC DEBIT(借记卡)'
if typeStr.upper() == 'PBOC DEBIT':
typeStr = typeStr + '(借记卡)'
elif typeStr.upper() == 'PBOC CREDIT':
typeStr = typeStr + '(信用卡)'
return typeStr
def _del20or00(astr): #删除商户名称后边多余字符
# example: 50424F435F4C4556454C32205445535400000000 ==> 50424F435F4C4556454C322054455354
while astr[-2:] == '00' or astr[-2:] == '20':
astr = astr[:-2]
return astr
def _jie_duan1(rawStr): #返回字符串rawStr中'D'以前的字符，即银行卡号
# example: 1111111111111111D191200000000000F ==> 1111111111111111111
return rawStr[:rawStr.find('D')]
def _jie_duan2(rawStr): #返回字符串rawStr中'D'之后的4个字符，即失效日期
# example: 1111111111111111D191200000000000F ==> 1912
return rawStr[rawStr.find('D')+1:rawStr.find('D')+1+4]
def insert_chr(insertStr, intCount=4, intChr=' '): #将银行卡号、日期等做下简单处理，便于观看
# example: 1111111111111111111 ==> 1111 1111 1111 1111 111
# example: 191210 ==> 19/12/10
L = []
for n in range(0,len(insertStr),intCount): #每intCount个字符一个intChr
L.append(insertStr[n:n+intCount])
return intChr.join(L)
def log_analyzing(logStr): #交易日志解析，转为字典，映射表参见<<JRT0025.5-2018 中国金融集成电路(IC)卡规范>>(下简称为JRT0025)第5部分 表45
# example: 16070308461000000002000000000000000001560156494342432041544D000000000000000000000000010051 ==> {'9A': ['交易日期', '160703'], '9F21': ['交易时间', '084610'], '9F02': ['授权金额', '000000020000'], '9F03': ['其他金额', '000000000000'], '9F1A': ['终端国家代码', '0156'], '5F2A': ['交易货币代码', '0156'], '9F4E': ['商户名称', '494342432041544D'], '9C': ['交易类型', '01'], '9F36': ['应用交易计数器(ATC)', '0051']}
log_tlv = {}
log_tlv['9A'] = ['交易日期', logStr[0:6]]
log_tlv['9F21'] = ['交易时间', logStr[6:12]]
log_tlv['9F02'] = ['授权金额', logStr[12:24]]
log_tlv['9F03'] = ['其他金额', logStr[24:36]]
log_tlv['9F1A'] = ['终端国家代码', logStr[36:40]]
log_tlv['5F2A'] = ['交易货币代码', logStr[40:44]]
log_tlv['9F4E'] = ['商户名称', _del20or00(logStr[44:84])]
log_tlv['9C'] = ['交易类型', logStr[84:86]]
log_tlv['9F36'] = ['应用交易计数器(ATC)', logStr[-4:]]
return log_tlv
def hex2gb2312(hexStr): #将十六进制转换为gb2312字符
# example: 494342432041544D ==> ICBC ATM
return bytes(toBytes(hexStr)).decode('gb2312')
def tlv_analyzing(*tlv): #对tlv格式进行解析,详细可参见JRT0025第5部分 附录A 表A.1
tag = read_tag()
newtag = {}
not_tlv2 = ('6F','70','72','73','77','80','A5','90') # 2个字符的模板
not_tlv4 = ('BF0C') # 4个字符的模板
for each_tlv in tlv:
each_tlv_raw = each_tlv
each_tlv = each_tlv + ' '
# print(each_tlv)
while len(each_tlv) != 1: #说明还存在数据，如果为1则值为' '
if each_tlv.startswith(not_tlv2): #检测特殊情况,如果开头是2个字符的模板等
if each_tlv[0:4] == '7081': # 70为模板，以7081开头的一般长度有4位(81xx)，所以将7081xx删掉
each_tlv = each_tlv[6:]
elif each_tlv[0:4] == '9081': # 90为证书，暂不处理，直接连数据一起删掉
length = int(each_tlv[4:6], 16)
each_tlv = each_tlv[6+length*2:]
else:
each_tlv = each_tlv[2+2:] #将模板和长度删掉
elif each_tlv.startswith(not_tlv4): #同上
each_tlv = each_tlv[4+2:]
else: #解析TLV
if each_tlv[0:2] in [i for i in tag if len(i) == 2]:
length = int(each_tlv[2:4], 16)
value = each_tlv[4:4+length*2]
tag[each_tlv[0:2]][1] = value
each_tlv = each_tlv[4+length*2:]
elif each_tlv[0:4] in [ j for j in tag if len(j) == 4]:
length = int(each_tlv[4:6], 16)
value = each_tlv[6:6+length*2]
tag[each_tlv[0:4]][1] = value
each_tlv = each_tlv[6+length*2:]
else: #如果解析不了
print('发现未识别的标签：', each_tlv[0:2], 'or', each_tlv[0:4])
print('原始标签：', each_tlv_raw)
print('-' * 50)
break
# print(tag)
return tag
if __name__ == '__main__':
detection = 0 #检测扫描的银行卡是否和刚刚扫描的一致，如果一致则不再扫描，以免出现重复数据
SELECT1 = [0x00,0xA4,0x04,0x00,0x07,0xA0,0x00,0x00,0x03,0x33,0x01,0x01] #选择卡片
SELECT2 = [0x00,0xB2,0x01,0x14,0x00] #银行卡号、生失效日期
SELECT3 = [0x00,0xB2,0x01,0x0C,0x00] #证件号、姓名、证件类型
SELECT4 = [0x80,0xCA,0x9F,0x79,0x00] #读取电子现金余额
while True: #程序持续运行
try: #选择卡片，发送请求数据，获取响应数据
r = readers() #以下代码及说明参见pyscard官方文档
connection = r[0].createConnection()
connection.connect()
data1, sw1, sw2 = connection.transmit(SELECT1)
if data1 == []:
print('扫描到非银行卡')
time.sleep(0.1)
continue
data2, sw1, sw2 = connection.transmit(SELECT2)
if detection == data2: #如果前后数据没变化，则重新扫描卡片
continue
data3, sw1, sw2 = connection.transmit(SELECT3)
data4, sw1, sw2 = connection.transmit(SELECT4)
data5_list = []
for i in range(1,0xB): #先从卡里读数据，后面再处理
SELECT5 = [0x00,0xB2,i,0x5C,0x00] #前 i 条交易日志
data5, sw1, sw2 = connection.transmit(SELECT5)
if data5 == []:
break
else:
data5_list.append(data5)
except:
time.sleep(0.1)
else:
tlv1 = toHexString(data1,PACK)
tlv2 = toHexString(data2,PACK)
tlv3 = toHexString(data3,PACK)
tlv4 = toHexString(data4,PACK)
res = tlv_analyzing(tlv1,tlv2,tlv3,tlv4)
s = ('''
银行卡类型：%(cardtype)s
银行卡号：%(cardnumber)s
银行卡发卡行：%(cardbank)s
银行卡有效期：%(valid)s - %(invalid)s
电子现金余额：%(balance).2f
持卡人姓名：%(name)s
持卡人证件号：%(idcardnumber)s
证件归属地：%(idcardbelong)s
''' % {'cardtype': _card_type(hex2gb2312(res['50'][1])),
'cardnumber': insert_chr(res['5A'][1].rstrip('F')) or insert_chr(_jie_duan1(res['57'][1])),
'cardbank': create_card_info(res['5A'][1].rstrip('F')) or create_card_info(_jie_duan1(res['57'][1])),
'valid': insert_chr(res['5F25'][1],2,'/'),
'invalid': insert_chr(res['5F24'][1],2,'/') or insert_chr(_jie_duan2(res['57'][1]),2,'/'),
'balance': int(res['9F79'][1])/100,
'name': hex2gb2312(res['5F20'][1]),
'idcardnumber': hex2gb2312(res['9F61'][1]),
'idcardbelong': create_identityCard_info(hex2gb2312(res['9F61'][1])) } )
# print(s)
s = s + '\n最近十次交易如下：'
for data5 in data5_list:
tlv5 = toHexString(data5,PACK)
log_tlv = log_analyzing(tlv5)
s = s + (
'''\n\n交易日期 交易时间 授权金额 商户名称 交易类型
%7s %9s %9.2f %15s %12s'''
% (insert_chr(log_tlv['9A'][1],2,'/'),
insert_chr(log_tlv['9F21'][1],2,':'),
int(log_tlv['9F02'][1])/100,
hex2gb2312(log_tlv['9F4E'][1]),
trade_type2str(log_tlv['9C'][1])))
print(s)
send_mails.send('NFC',s.replace('\n','<br>')) #发送邮件
print('*' * 80)
detection = data2