update

app.py

@@ -30,7 +30,6 @@ logger = logging.getLogger(__name__)
 # async_mode = 'gevent'
 async_mode = 'threading'
 
-
 # if getattr(sys, 'frozen', False):
 #     template_folder = os.path.join(sys._MEIPASS, 'templates')
 #     static_folder = os.path.join(sys._MEIPASS, 'static')
@@ -345,11 +344,15 @@ class MyNamespace(Namespace):
             # logger.info(e)
             pass
         finally:
+            if hcontext:
                 hresult = self.scard.release_context(hcontext)
+            else:
+                pass
             # logger.info('Released context.')
     
     def on_read_history(self, message):
         try:
+            hcontext = None
             hcontext = self.scard.establish_context()
             result = self.scard.find_self_reader(hcontext)
             if not result:
@@ -410,8 +413,10 @@ class MyNamespace(Namespace):
             # logger.info(e)
             pass
         finally:
+            if hcontext:
                 hresult = self.scard.release_context(hcontext)
-            
+            else:
+                pass
             # logger.info('Released context.')
     
     def on_write_repair(self, message):
@@ -475,9 +480,12 @@ class MyNamespace(Namespace):
         finally:
             if hcontext:
                 hresult = self.scard.release_context(hcontext)
+            else:
+                pass
     
     def on_read_sn(self, message):
         try:
+            hcontext = None
             sn = ""
             hcontext = self.scard.establish_context()
             result = self.scard.find_self_reader(hcontext)
@@ -504,12 +512,15 @@ class MyNamespace(Namespace):
             # logger.info(e)
             pass
         finally:
+            if hcontext:
                 hresult = self.scard.release_context(hcontext)
-            
+            else:
+                pass
             # logger.info('Released context.')
     
     def on_write_sn(self, message):
         try:
+            hcontext = None
             sn = message["sn"]
             token = message["Authorization"]
             last_four = hex(int(sn[-4:])).replace('0x', '').zfill(4).upper()
@@ -559,12 +570,16 @@ class MyNamespace(Namespace):
             # logger.info(e)
             pass
         finally:
+            if hcontext:
                 hresult = self.scard.release_context(hcontext)
+            else:
+                pass
             
             # logger.info('Released context.')
     
     def on_delete_sn(self, message):
         try:
+            hcontext = None
             sn = message["sn"]
             password = message["password"]
             if password != "sswnb":
@@ -615,8 +630,10 @@ class MyNamespace(Namespace):
             # logger.info(e)
             pass
         finally:
+            if hcontext:
                 hresult = self.scard.release_context(hcontext)
-            
+            else:
+                pass
             # logger.info('Released context.')
     
     def on_delete_all(self, message):
@@ -649,21 +666,21 @@ class MyNamespace(Namespace):
                       'error_message': '删除sn数据失败，请重试, write repair data error'})
                 return
             
-            # 写入全为0的维修数据
+            start_block = 24
             for i in range(5):
-                write_command = [0xFF, 0xD6, 0x00, 10 + i, 0x10]
-                write_command += [0 for x in range(16)]
-                
+                for j in range(4):
+                    write_command = [0xFF, 0xD6, 0x00, start_block + j, 0x04]
+                    write_command += [0, 0, 0, 0]
                     result = self.scard.card_transmit(hcontext, self.scard.reader, write_command)
                     return_code = result[-2:]
                     if return_code[0] == 144 and return_code[1] == 0:
-                    pass
+                        start_block += 4
+                        continue
                     else:
                         emit('delete_all',
                              {'data': None, 'error_code': 1006,
                               'error_message': '删除维修数据失败，请重试, write repair data error'})
                         return
-            
             emit('delete_all',
                  {'data': None, 'error_code': 0, 'error_message': 'success'})