def read_provided_ssh_key():
from src.SSH import read_private_key_from_file
#print 'Look for preconfigured SSH key.'
f = resource_path('resources', 'ssh.key')
#print '> at %s' % f
if not f or not os.path.isfile(f):
#print '> not found'
return None
if os.path.getsize(f) < 1:
#print '> empty'
return None
# Read preconfigured SSH key.
try:
#print '> read key'
pwd = get_configuration('settings', 'ssh-provided-key-password', '')
key = read_private_key_from_file(f, pwd)
except:
print 'Preconfigured SSH key is not readable!'
print traceback.format_exc()
key = None
# If the program was started from a binary executable,
# the SSH key is removed from the temporary application folder after it was read.
# Hopefully this makes it a bit more difficult to extract the SSH key from an application binary.
if is_executed_from_binary():
#print '> remove key file from local disk'
os.remove(f)
return key
def validate(self, messages):
count = len(messages)
# validate VNC application
if not self.is_custom_vnc_app():
vnc = self.settings.get_vnc_application(default=None)
if vnc is None or vnc == '':
messages.append(_('No VNC application was specified.'))
elif not os.path.isfile(vnc):
messages.append(_('The VNC application does not point to a file.'))
# validate SSH user
user = self.settings.get_ssh_user(default=None)
if user is None:
messages.append(_('No SSH user name was specified.'))
# validate SSH keyfile
if not self.settings.is_ssh_use_provided_key():
password = self.settings.get_ssh_password()
keyfile = self.settings.get_ssh_keyfile(default=None)
if not keyfile is None:
if not os.path.isfile(keyfile):
messages.append(_('The private key file is invalid.'))
else:
try:
read_private_key_from_file(keyfile, password=password)
except:
print traceback.format_exc()
messages.append(_('Can\'t open private key with the provided password.'))
# validate SSH port
port = self.settings.get_ssh_port(default=None)
if port is None:
messages.append(_('The SSH port number is invalid.'))
elif port < 0 or port > 65535:
messages.append(_('The SSH port number is not in the interval from {0} to {1}.').format(1, 65535))
return len(messages) > count
