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Copy pathutil.py
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103 lines (88 loc) · 3.46 KB
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# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
#
# Copyright (C) 2015-2020, The University of Memphis,
# Arizona Board of Regents,
# Regents of the University of California.
#
# This file is part of Mini-NDN.
# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
#
# Mini-NDN 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.
#
# Mini-NDN 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 Mini-NDN, e.g., in COPYING.md file.
# If not, see <http://www.gnu.org/licenses/>.
import sys
from os.path import isfile
from subprocess import call
from six.moves.urllib.parse import quote
from mininet.cli import CLI
sshbase = ['ssh', '-q', '-t', '-i/home/mininet/.ssh/id_rsa']
scpbase = ['scp', '-i', '/home/mininet/.ssh/id_rsa']
devnull = open('/dev/null', 'w')
def getSafeName(namePrefix):
"""
Check if the prefix/string is safe to use with ndn commands or not.
return safe prefix.
:param namePrefix: name of the prefix
"""
# remove redundant "/"es, multiple "/"es are an invalid representation for empty name component
# https://named-data.net/doc/NDN-packet-spec/current/changelog.html#version-0-3
namePrefix= "/" + ("/".join(filter(None, namePrefix.split("/"))))
return quote(namePrefix, safe='/')
def ssh(login, cmd):
rcmd = sshbase + [login, cmd]
call(rcmd, stdout=devnull, stderr=devnull)
def scp(*args):
tmp = []
for arg in args:
tmp.append(arg)
rcmd = scpbase + tmp
call(rcmd, stdout=devnull, stderr=devnull)
def copyExistentFile(node, fileList, destination):
for f in fileList:
if isfile(f):
node.cmd('cp {} {}'.format(f, destination))
break
if not isfile(destination):
fileName = destination.split('/')[-1]
raise IOError('{} not found in expected directory.'.format(fileName))
def popenGetEnv(node, envDict=None):
env = {}
homeDir = node.params['params']['homeDir']
printenv = node.popen('printenv'.split(), cwd=homeDir).communicate()[0].decode('utf-8')
for var in printenv.split('\n'):
if var == '':
break
p = var.split('=')
env[p[0]] = p[1]
env['HOME'] = homeDir
if envDict is not None:
for key, value in envDict.items():
env[key] = str(value)
return env
def getPopen(host, cmd, envDict=None, **params):
return host.popen(cmd, cwd=host.params['params']['homeDir'],
env=popenGetEnv(host, envDict), **params)
class MiniNDNCLI(CLI):
prompt = 'mini-ndn> '
def __init__(self, mininet, stdin=sys.stdin, script=None):
CLI.__init__(self, mininet, stdin, script)
try:
from mn_wifi.cli import CLI as CLI_wifi
class MiniNDNWifiCLI(CLI_wifi):
prompt = 'mini-ndn-wifi> '
def __init__(self, mininet, stdin=sys.stdin, script=None):
CLI_wifi.__init__(self, mininet, stdin, script)
except ImportError:
class MiniNDNWifiCLI:
def __init__(self):
raise ImportError('Mininet-WiFi is not installed')