def run_duplicity(self, options=[], current_time=None, fail=None,
passphrase_input=[]):
"""
Run duplicity binary with given arguments and options
"""
# We run under setsid and take input from /dev/null (below) because
# this way we force a failure if duplicity tries to read from the
# console unexpectedly (like for gpg password or such).
cmd_list = ["setsid", "duplicity"]
cmd_list.extend(options)
cmd_list.extend(["-v0"])
cmd_list.extend(["--no-print-statistics"])
cmd_list.extend(["--allow-source-mismatch"])
cmd_list.extend(["--archive-dir=testfiles/cache"])
if current_time:
cmd_list.extend(["--current-time", current_time])
cmd_list.extend(self.class_args)
if fail:
cmd_list.extend(["--fail", str(fail)])
cmdline = " ".join(map(lambda x: '"%s"' % x, cmd_list))
if not passphrase_input:
cmdline += " < /dev/null"
child = pexpect.spawn('/bin/sh', ['-c', cmdline])
for passphrase in passphrase_input:
child.expect('passphrase.*:')
child.sendline(passphrase)
child.wait()
return_val = child.exitstatus
#print "Ran duplicity command: ", cmdline, "\n with return_val: ", child.exitstatus
if fail:
self.assertEqual(30, child.exitstatus)
elif return_val:
raise CmdError(child.exitstatus)
def run_scp_command(self, commandline):
""" Run an scp command, responding to password prompts """
for n in range(1, globals.num_retries+1):
if n > 1:
# sleep before retry
time.sleep(self.retry_delay)
log.Info("Running '%s' (attempt #%d)" % (commandline, n))
child = pexpect.spawn(commandline, timeout = None)
if globals.ssh_askpass:
state = "authorizing"
else:
state = "copying"
while 1:
if state == "authorizing":
match = child.expect([pexpect.EOF,
"(?i)timeout, server not responding",
"(?i)pass(word|phrase .*):",
"(?i)permission denied",
"authenticity"])
log.Debug("State = %s, Before = '%s'" % (state, child.before.strip()))
if match == 0:
log.Warn("Failed to authenticate")
break
elif match == 1:
log.Warn("Timeout waiting to authenticate")
break
elif match == 2:
child.sendline(self.password)
state = "copying"
elif match == 3:
log.Warn("Invalid SSH password")
break
elif match == 4:
log.Warn("Remote host authentication failed (missing known_hosts entry?)")
break
elif state == "copying":
match = child.expect([pexpect.EOF,
"(?i)timeout, server not responding",
"stalled",
"authenticity",
"ETA"])
log.Debug("State = %s, Before = '%s'" % (state, child.before.strip()))
if match == 0:
break
elif match == 1:
log.Warn("Timeout waiting for response")
break
elif match == 2:
state = "stalled"
elif match == 3:
log.Warn("Remote host authentication failed (missing known_hosts entry?)")
break
elif state == "stalled":
match = child.expect([pexpect.EOF,
"(?i)timeout, server not responding",
"ETA"])
log.Debug("State = %s, Before = '%s'" % (state, child.before.strip()))
if match == 0:
break
elif match == 1:
log.Warn("Stalled for too long, aborted copy")
break
elif match == 2:
state = "copying"
child.close(force = True)
if child.exitstatus == 0:
return
log.Warn("Running '%s' failed (attempt #%d)" % (commandline, n))
log.Warn("Giving up trying to execute '%s' after %d attempts" % (commandline, globals.num_retries))
raise BackendException("Error running '%s'" % commandline)
def run_sftp_command(self, commandline, commands):
""" Run an sftp command, responding to password prompts, passing commands from list """
maxread = 2000 # expected read buffer size
responses = [pexpect.EOF,
"(?i)timeout, server not responding",
"sftp>",
"(?i)pass(word|phrase .*):",
"(?i)permission denied",
"authenticity",
"(?i)no such file or directory",
"Couldn't delete file: No such file or directory",
"Couldn't delete file",
"open(.*): Failure"]
max_response_len = max([len(p) for p in responses[1:]])
for n in range(1, globals.num_retries+1):
if n > 1:
# sleep before retry
time.sleep(self.retry_delay)
log.Info("Running '%s' (attempt #%d)" % (commandline, n))
child = pexpect.spawn(commandline, timeout = None, maxread=maxread)
cmdloc = 0
passprompt = 0
while 1:
msg = ""
match = child.expect(responses,
searchwindowsize=maxread+max_response_len)
log.Debug("State = sftp, Before = '%s'" % (child.before.strip()))
if match == 0:
break
elif match == 1:
msg = "Timeout waiting for response"
break
if match == 2:
if cmdloc < len(commands):
command = commands[cmdloc]
log.Info("sftp command: '%s'" % (command,))
child.sendline(command)
cmdloc += 1
else:
command = 'quit'
child.sendline(command)
res = child.before
elif match == 3:
passprompt += 1
child.sendline(self.password)
if (passprompt>1):
raise BackendException("Invalid SSH password.")
elif match == 4:
if not child.before.strip().startswith("mkdir"):
msg = "Permission denied"
break
elif match == 5:
msg = "Host key authenticity could not be verified (missing known_hosts entry?)"
break
elif match == 6:
if not child.before.strip().startswith("rm"):
msg = "Remote file or directory does not exist in command='%s'" % (commandline,)
break
elif match == 7:
if not child.before.strip().startswith("Removing"):
msg = "Could not delete file in command='%s'" % (commandline,)
break;
elif match == 8:
msg = "Could not delete file in command='%s'" % (commandline,)
break
elif match == 9:
msg = "Could not open file in command='%s'" % (commandline,)
break
child.close(force = True)
if child.exitstatus == 0:
return res
log.Warn("Running '%s' with commands:\n %s\n failed (attempt #%d): %s" % (commandline, "\n ".join(commands), n, msg))
raise BackendException("Giving up trying to execute '%s' with commands:\n %s\n after %d attempts" % (commandline, "\n ".join(commands), globals.num_retries))
def run_scp_command(self, commandline):
""" Run an scp command, responding to password prompts """
for n in range(1, globals.num_retries + 1):
if n > 1:
# sleep before retry
time.sleep(self.retry_delay)
log.Info("Running '%s' (attempt #%d)" % (commandline, n))
child = pexpect.spawn(commandline, timeout=None)
if globals.ssh_askpass:
state = "authorizing"
else:
state = "copying"
while 1:
if state == "authorizing":
match = child.expect([
pexpect.EOF, "(?i)timeout, server not responding",
"(?i)pass(word|phrase .*):", "(?i)permission denied",
"authenticity"
])
log.Debug("State = %s, Before = '%s'" %
(state, child.before.strip()))
if match == 0:
log.Warn("Failed to authenticate")
break
elif match == 1:
log.Warn("Timeout waiting to authenticate")
break
elif match == 2:
child.sendline(self.password)
state = "copying"
elif match == 3:
log.Warn("Invalid SSH password")
break
elif match == 4:
log.Warn(
"Remote host authentication failed (missing known_hosts entry?)"
)
break
elif state == "copying":
match = child.expect([
pexpect.EOF, "(?i)timeout, server not responding",
"stalled", "authenticity", "ETA"
])
log.Debug("State = %s, Before = '%s'" %
(state, child.before.strip()))
if match == 0:
break
elif match == 1:
log.Warn("Timeout waiting for response")
break
elif match == 2:
state = "stalled"
elif match == 3:
log.Warn(
"Remote host authentication failed (missing known_hosts entry?)"
)
break
elif state == "stalled":
match = child.expect([
pexpect.EOF, "(?i)timeout, server not responding",
"ETA"
])
log.Debug("State = %s, Before = '%s'" %
(state, child.before.strip()))
if match == 0:
break
elif match == 1:
log.Warn("Stalled for too long, aborted copy")
break
elif match == 2:
state = "copying"
child.close(force=True)
if child.exitstatus == 0:
return
log.Warn("Running '%s' failed (attempt #%d)" % (commandline, n))
log.Warn("Giving up trying to execute '%s' after %d attempts" %
(commandline, globals.num_retries))
raise BackendException("Error running '%s'" % commandline)
def run_sftp_command(self, commandline, commands):
""" Run an sftp command, responding to password prompts, passing commands from list """
maxread = 2000 # expected read buffer size
responses = [
pexpect.EOF, "(?i)timeout, server not responding", "sftp>",
"(?i)pass(word|phrase .*):", "(?i)permission denied",
"authenticity", "(?i)no such file or directory",
"Couldn't delete file: No such file or directory",
"Couldn't delete file", "open(.*): Failure"
]
max_response_len = max([len(p) for p in responses[1:]])
for n in range(1, globals.num_retries + 1):
if n > 1:
# sleep before retry
time.sleep(self.retry_delay)
log.Info("Running '%s' (attempt #%d)" % (commandline, n))
child = pexpect.spawn(commandline, timeout=None, maxread=maxread)
cmdloc = 0
passprompt = 0
while 1:
msg = ""
match = child.expect(responses,
searchwindowsize=maxread +
max_response_len)
log.Debug("State = sftp, Before = '%s'" %
(child.before.strip()))
if match == 0:
break
elif match == 1:
msg = "Timeout waiting for response"
break
if match == 2:
if cmdloc < len(commands):
command = commands[cmdloc]
log.Info("sftp command: '%s'" % (command, ))
child.sendline(command)
cmdloc += 1
else:
command = 'quit'
child.sendline(command)
res = child.before
elif match == 3:
passprompt += 1
child.sendline(self.password)
if (passprompt > 1):
raise BackendException("Invalid SSH password.")
elif match == 4:
if not child.before.strip().startswith("mkdir"):
msg = "Permission denied"
break
elif match == 5:
msg = "Host key authenticity could not be verified (missing known_hosts entry?)"
break
elif match == 6:
if not child.before.strip().startswith("rm"):
msg = "Remote file or directory does not exist in command='%s'" % (
commandline, )
break
elif match == 7:
if not child.before.strip().startswith("Removing"):
msg = "Could not delete file in command='%s'" % (
commandline, )
break
elif match == 8:
msg = "Could not delete file in command='%s'" % (
commandline, )
break
elif match == 9:
msg = "Could not open file in command='%s'" % (
commandline, )
break
child.close(force=True)
if child.exitstatus == 0:
return res
log.Warn(
"Running '%s' with commands:\n %s\n failed (attempt #%d): %s" %
(commandline, "\n ".join(commands), n, msg))
raise BackendException(
"Giving up trying to execute '%s' with commands:\n %s\n after %d attempts"
% (commandline, "\n ".join(commands), globals.num_retries))