def session_login(self):
"""Authenticates the service on the device.
Tries all the IP addrs listed in the san_ip parameter
until a working one is found or the list is exhausted.
"""
try:
self._get_session_key()
self.get_firmware_version()
LOG.debug("Logged in to array at %s (session %s)", self._base_url,
self._session_key)
return
except exception.DotHillConnectionError:
not_responding = self._curr_ip_addr
LOG.exception('session_login failed to connect to %s',
self._curr_ip_addr)
# Loop through the remaining management addresses
# to find one that's up.
for host in self._mgmt_ip_addrs:
if host is not_responding:
continue
self._set_host(host)
try:
self._get_session_key()
return
except exception.DotHillConnectionError:
LOG.error('Failed to connect to %s', self._curr_ip_addr)
continue
raise exception.DotHillConnectionError(
message=_("Failed to log in to management controller"))
def _api_request(self, path, *args, **kargs):
"""Performs an HTTP request on the device, with locking.
Raises a DotHillRequestError if the device returned but the status is
not 0. The device error message will be used in the exception message.
If the status is OK, returns the XML data for further processing.
"""
url = self._build_request_url(path, *args, **kargs)
LOG.debug("Array Request URL: %s (session %s)", url, self._session_key)
headers = {'dataType': 'api', 'sessionKey': self._session_key}
try:
xml = requests.get(url,
headers=headers,
verify=self.ssl_verify,
timeout=60)
tree = etree.XML(xml.text.encode('utf8'))
except Exception as e:
message = _("Exception handling URL %(url)s: %(msg)s") % {
'url': url,
'msg': e
}
raise exception.DotHillConnectionError(message=message)
if path == "/show/volumecopy-status":
return tree
self._assert_response_ok(tree)
return tree
def _get_auth_token(self, xml):
"""Parse an XML authentication reply to extract the session key."""
self._session_key = None
try:
tree = etree.XML(xml)
if (tree.findtext(".//PROPERTY[@name='response-type']") ==
"success"):
self._session_key = (
tree.findtext(".//PROPERTY[@name='response']"))
except Exception as e:
msg = _("Cannot parse session key: %s") % e.msg
raise exception.DotHillConnectionError(message=msg)
def _get_auth_token(self, xml):
"""Parse an XML authentication reply to extract the session key."""
self._session_key = None
try:
tree = etree.XML(xml)
# The 'return-code' property is not valid in this context, so we
# we check value of 'response-type-numeric' (0 => Success)
rtn = tree.findtext(".//PROPERTY[@name='response-type-numeric']")
session_key = tree.findtext(".//PROPERTY[@name='response']")
if rtn == '0':
self._session_key = session_key
except Exception as e:
msg = _("Cannot parse session key: %s") % e.msg
raise exception.DotHillConnectionError(message=msg)
def client_login(self):
LOG.debug("Connecting to %s Array.", self.vendor_name)
try:
self.client.login()
except exception.DotHillConnectionError as ex:
msg = _("Failed to connect to %(vendor_name)s Array %(host)s: "
"%(err)s") % {'vendor_name': self.vendor_name,
'host': self.config.san_ip,
'err': six.text_type(ex)}
LOG.error(msg)
raise exception.DotHillConnectionError(message=msg)
except exception.DotHillAuthenticationError:
msg = _("Failed to log on %s Array "
"(invalid login?).") % self.vendor_name
LOG.error(msg)
raise exception.DotHillAuthenticationError(message=msg)
def _get_session_key(self):
"""Retrieve a session key from the array."""
self._session_key = None
hash_ = "%s_%s" % (self._login, self._password)
if six.PY3:
hash_ = hash_.encode('utf-8')
hash_ = hashlib.md5(hash_)
digest = hash_.hexdigest()
url = self._base_url + "/login/" + digest
try:
xml = requests.get(url, verify=self.ssl_verify, timeout=30)
except requests.exceptions.RequestException:
msg = _("Failed to obtain MC session key")
LOG.exception(msg)
raise exception.DotHillConnectionError(message=msg)
self._get_auth_token(xml.text.encode('utf8'))
LOG.debug("session key = %s", self._session_key)
if self._session_key is None:
raise exception.DotHillAuthenticationError
