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| -rw-r--r-- | common/src/leap/soledad/common/command.py | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/common/src/leap/soledad/common/command.py b/common/src/leap/soledad/common/command.py new file mode 100644 index 00000000..978cec91 --- /dev/null +++ b/common/src/leap/soledad/common/command.py @@ -0,0 +1,54 @@ +# -*- coding: utf-8 -*- +# command.py +# Copyright (C) 2015 LEAP +# +# 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 3 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/>. + + +""" +Utility to sanitize and run shell commands. +""" + + +import subprocess + + +def exec_validated_cmd(cmd, args, validator=None): + """ + Executes cmd, validating args with validator. + + :param cmd: command. + :type dbname: str + :param args: arguments. + :type args: str + :param validator: optional function to validate args + :type validator: function + + :return: exit code and stdout or stderr (if code != 0) + :rtype: (int, str) + """ + if validator and not validator(args): + return 1, "invalid argument" + command = cmd.split(' ') + command.append(args) + try: + process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE) + except OSError, e: + return 1, e + (out, err) = process.communicate() + code = process.wait() + if code is not 0: + return code, err + else: + return code, out |