| # -*- coding: utf-8 -*- |
| |
| """ pySim: card handler utilities. A 'card handler' is some method |
| by which cards can be inserted/removed into the card reader. For |
| normal smart card readers, this has to be done manually. However, |
| there are also automatic card feeders. |
| """ |
| |
| # |
| # (C) 2019 by Sysmocom s.f.m.c. GmbH |
| # All Rights Reserved |
| # |
| # This program is free software: you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation, either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| from pySim.transport import LinkBase |
| |
| import subprocess |
| import sys |
| import yaml |
| |
| class CardHandlerBase: |
| """Abstract base class representing a mechanism for card insertion/removal.""" |
| |
| def __init__(self, sl:LinkBase): |
| self.sl = sl |
| |
| def get(self, first:bool = False): |
| """Method called when pySim needs a new card to be inserted. |
| |
| Args: |
| first : set to true when the get method is called the |
| first time. This is required to prevent blocking |
| when a card is already inserted into the reader. |
| The reader API would not recognize that card as |
| "new card" until it would be removed and re-inserted |
| again. |
| """ |
| print("Ready for Programming: ", end='') |
| self._get(first) |
| |
| def error(self): |
| """Method called when pySim failed to program a card. Move card to 'bad' batch.""" |
| print("Programming failed: ", end='') |
| self._error() |
| |
| def done(self): |
| """Method called when pySim failed to program a card. Move card to 'good' batch.""" |
| print("Programming successful: ", end='') |
| self._done() |
| |
| def _get(self, first:bool = False): |
| pass |
| |
| def _error(self): |
| pass |
| |
| def _done(self): |
| pass |
| |
| |
| class CardHandler(CardHandlerBase): |
| """Manual card handler: User is prompted to insert/remove card from the reader.""" |
| |
| def _get(self, first:bool = False): |
| print("Insert card now (or CTRL-C to cancel)") |
| self.sl.wait_for_card(newcardonly=not first) |
| |
| def _error(self): |
| print("Remove card from reader") |
| print("") |
| |
| def _done(self): |
| print("Remove card from reader") |
| print("") |
| |
| |
| class CardHandlerAuto(CardHandlerBase): |
| """Automatic card handler: A machine is used to handle the cards.""" |
| |
| verbose = True |
| |
| def __init__(self, sl:LinkBase, config_file:str): |
| super().__init__(sl) |
| print("Card handler Config-file: " + str(config_file)) |
| with open(config_file) as cfg: |
| self.cmds = yaml.load(cfg, Loader=yaml.FullLoader) |
| self.verbose = (self.cmds.get('verbose') == True) |
| |
| def __print_outout(self, out): |
| print("") |
| print("Card handler output:") |
| print("---------------------8<---------------------") |
| stdout = out[0].strip() |
| if len(stdout) > 0: |
| print("stdout:") |
| print(stdout) |
| stderr = out[1].strip() |
| if len(stderr) > 0: |
| print("stderr:") |
| print(stderr) |
| print("---------------------8<---------------------") |
| print("") |
| |
| def __exec_cmd(self, command): |
| print("Card handler Commandline: " + str(command)) |
| |
| proc = subprocess.Popen([command], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True) |
| out = proc.communicate() |
| rc = proc.returncode |
| |
| if rc != 0 or self.verbose: |
| self.__print_outout(out) |
| |
| if rc != 0: |
| print("") |
| print("Error: Card handler failure! (rc=" + str(rc) + ")") |
| sys.exit(rc) |
| |
| def _get(self, first:bool = False): |
| print("Transporting card into the reader-bay...") |
| self.__exec_cmd(self.cmds['get']) |
| if self.sl: |
| self.sl.connect() |
| |
| def _error(self): |
| print("Transporting card to the error-bin...") |
| self.__exec_cmd(self.cmds['error']) |
| print("") |
| |
| def _done(self): |
| print("Transporting card into the collector bin...") |
| self.__exec_cmd(self.cmds['done']) |
| print("") |