Initial commit; program can read in binary from a magtek card reader, TODO: parse input properly into multiple tracks

read.py

@@ -0,0 +1,67 @@
+#! /usr/bin/python
+import hid
+
+def get_readers():
+    return [item for item in hid.enumerate() if item["manufacturer_string"]=="Mag-Tek"]
+
+def get_device_from_reader(reader):
+    return hid.Device(reader["vendor_id"], reader["product_id"])
+
+def get_device_from_readers(readers):
+    if len(readers) == 0:
+        print("No Mag-Tek reader detected - Quiting")
+        return
+
+    elif len(readers) > 1:
+        devices = []
+        for i in range(len(readers)):
+            try:
+                a = readers[i]
+                dev = hid.Device(a["vendor_id"],a["product_id"])
+                devices.append(dev)
+                print(f"{i})\t\'{dev.manufacturer} {dev.product}\' - {'nonblocking' if dev.nonblocking else 'blocking'}")
+                
+
+            except:
+                devices.append(None)
+
+        return devices[int(input( "Enter desired reader number" ))]
+    return get_device_from_reader(readers[0])
+
+def read(device):
+    print("Waiting for swipe...")
+    return device.read(256)[3:]
+
+def parse_raw_data(raw_data):
+    END_CHAR = ";"
+    START_CHAR = "%"
+    SPLIT_CHAR = b"?"
+
+    print(raw_data)
+    tracks = raw_data.split(SPLIT_CHAR)
+
+    print(tracks)
+    return
+
+    data = raw_data.decode()
+
+
+
+    end = end if end != -1 else len(data)
+    tracks = data[start:end].replace('\x00','').replace("\x10","").split(SPLIT_CHAR)
+    final_output = [track for track in tracks if len(track)!=0]
+
+    return final_output
+
+def main():
+    readers = get_readers()
+    device = get_device_from_readers(readers)
+    if device is None:
+        return
+    while True:
+        raw_data = read(device)
+        print(parse_raw_data(raw_data))
+        print()
+
+if __name__ == "__main__":
+    main()