replace.py: Moved replace func,mitm: addr book replace

Moved the replace function from mitm.py to replace.py.

This implementation is context insensitive for now. It would be
better, to have a mitm class or to pass state information to the
function. Because how else can the MITM code know, whether it gets
passed data to or from the sim card, to or from the phone?

usb_application/replace.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+
+import array
+from constants import *
+
+
+# Address book entries
+name = 'deine mudda'
+phone = '0123456789abcdef'
+
+def replace(data):
+    print(replace.last_req)
+    if data is None:
+        raise MITMReplaceError
+    else:
+        try:
+            if data[0] == 0xA0:
+                print("INS: ", hex(data[1]))
+                replace.last_req = data
+                return data
+
+            if data[0] == 0x3B:
+                return data
+                #print("*** Replace ATR")
+                #return array('B', NEW_ATR)
+            elif data[0] == 0x9F:
+                return data
+#                print("*** Replace return val")
+#                return array('B', [0x60, 0x00])
+            elif replace.last_req[1:5] == array('B', [0xB2, 0x01, 0x04, 0x1A]):   # phone book request
+                print("*** Replace phone book")
+#                return array('B',  [0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0xff, 0xff, 0xff, 0xff, 0x09, 0x81, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xff, 0xff, 0xff, 0xff, 0x90, 0x00])
+                resp = map(ord, name) + ([0xff]*(12-len(name))) + [len(name) + 1] + [0x81]
+                for x in range(1,len(phone)/2+1):
+                    list.append(resp, int(phone[x*2-2:2*x:], 16))
+                resp += ([0xff]*(replace.last_req[4]-len(resp))) + [0x90, 0x00]
+                return array('B', resp)
+        except ValueError:
+            print("*** Value error! ")
+    return data
+
+replace.last_req = array('B')
+
+if __name__ == '__main__':
+    print("Replacing PHONE_BOOK_REQ", PHONE_BOOK_REQ, "with", replace(PHONE_BOOK_REQ))
+    print("Replacing PHONE_BOOK_RESP", PHONE_BOOK_RESP, "with", replace(PHONE_BOOK_RESP))