mirror of
https://github.com/cisagov/manage.get.gov.git
synced 2025-07-13 22:45:05 +02:00
removed EPP connection pool, simplified epplibwrapper, removed socket
This commit is contained in:
David Kennedy
parent
b355f1813d
commit
c5d525bd48
8 changed files with 281 additions and 679 deletions
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@ -2,10 +2,6 @@
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import logging
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from time import sleep
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from gevent import Timeout
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from epplibwrapper.utility.pool_status import PoolStatus
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try:
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from epplib.client import Client
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from epplib import commands
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@ -18,8 +14,6 @@ from django.conf import settings
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from .cert import Cert, Key
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from .errors import ErrorCode, LoginError, RegistryError
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from .socket import Socket
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from .utility.pool import EPPConnectionPool
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logger = logging.getLogger(__name__)
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@ -43,8 +37,13 @@ class EPPLibWrapper:
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ATTN: This should not be used directly. Use `Domain` from domain.py.
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"""
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def __init__(self, start_connection_pool=True) -> None:
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def __init__(self) -> None:
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"""Initialize settings which will be used for all connections."""
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# set _client to None initially. In the event that the __init__ fails
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# before _client initializes, app should still start and be in a state
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# that it can attempt _client initialization on send attempts
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logger.info("__init__ called")
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self._client = None
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# prepare (but do not send) a Login command
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self._login = commands.Login(
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cl_id=settings.SECRET_REGISTRY_CL_ID,
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@ -54,7 +53,16 @@ class EPPLibWrapper:
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"urn:ietf:params:xml:ns:contact-1.0",
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],
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)
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try:
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self._initialize_client()
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except Exception:
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logger.warning("Unable to configure epplib. Registrar cannot contact registry.", exc_info=True)
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def _initialize_client(self) -> None:
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"""Initialize a client, assuming _login defined. Sets _client to initialized
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client. Raises errors if initialization fails.
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This method will be called at app initialization, and also during retries."""
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logger.info("_initialize_client called")
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# establish a client object with a TCP socket transport
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self._client = Client(
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SocketTransport(
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@ -64,50 +72,44 @@ class EPPLibWrapper:
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password=settings.SECRET_REGISTRY_KEY_PASSPHRASE,
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)
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)
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try:
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# use the _client object to connect
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self._client.connect()
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response = self._client.send(self._login)
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if response.code >= 2000: # type: ignore
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self._client.close()
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raise LoginError(response.msg) # type: ignore
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except TransportError as err:
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message = "_initialize_client failed to execute due to a connection error."
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logger.error(f"{message} Error: {err}", exc_info=True)
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raise RegistryError(message, code=ErrorCode.TRANSPORT_ERROR) from err
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except LoginError as err:
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raise err
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except Exception as err:
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message = "_initialize_client failed to execute due to an unknown error."
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logger.error(f"{message} Error: {err}", exc_info=True)
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raise RegistryError(message) from err
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self.pool_options = {
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# Pool size
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"size": settings.EPP_CONNECTION_POOL_SIZE,
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# Which errors the pool should look out for.
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# Avoid changing this unless necessary,
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# it can and will break things.
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"exc_classes": (TransportError,),
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# Occasionally pings the registry to keep the connection alive.
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# Value in seconds => (keepalive / size)
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"keepalive": settings.POOL_KEEP_ALIVE,
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}
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self._pool = None
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# Tracks the status of the pool
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self.pool_status = PoolStatus()
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if start_connection_pool:
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self.start_connection_pool()
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def _disconnect(self) -> None:
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"""Close the connection."""
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logger.info("_disconnect called")
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try:
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self._client.send(commands.Logout())
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self._client.close()
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except Exception:
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logger.warning("Connection to registry was not cleanly closed.")
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def _send(self, command):
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"""Helper function used by `send`."""
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logger.info("_send called")
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cmd_type = command.__class__.__name__
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# Start a timeout to check if the pool is hanging
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timeout = Timeout(settings.POOL_TIMEOUT)
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timeout.start()
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try:
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if not self.pool_status.connection_success:
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raise LoginError("Couldn't connect to the registry after three attempts")
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with self._pool.get() as connection:
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response = connection.send(command)
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except Timeout as t:
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# If more than one pool exists,
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# multiple timeouts can be floating around.
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# We need to be specific as to which we are targeting.
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if t is timeout:
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# Flag that the pool is frozen,
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# then restart the pool.
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self.pool_status.pool_hanging = True
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logger.error("Pool timed out")
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self.start_connection_pool()
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# check for the condition that the _client was not initialized properly
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# at app initialization
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if self._client is None:
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self._initialize_client()
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response = self._client.send(command)
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except (ValueError, ParsingError) as err:
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message = f"{cmd_type} failed to execute due to some syntax error."
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logger.error(f"{message} Error: {err}", exc_info=True)
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@ -131,109 +133,38 @@ class EPPLibWrapper:
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raise RegistryError(response.msg, code=response.code)
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else:
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return response
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finally:
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# Close the timeout no matter what happens
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timeout.close()
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def send(self, command, *, cleaned=False):
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"""Login, send the command, then close the connection. Tries 3 times."""
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def _retry(self, command, *, cleaned=False):
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"""Retry sending a command through EPP by re-initializing the client
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and then sending the command."""
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logger.info("_retry called")
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# re-initialize by disconnecting and initial
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self._disconnect()
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self._initialize_client()
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# try to prevent use of this method without appropriate safeguards
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if not cleaned:
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raise ValueError("Please sanitize user input before sending it.")
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return self._send(command)
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# Reopen the pool if its closed
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# Only occurs when a login error is raised, after connection is successful
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if not self.pool_status.pool_running:
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# We want to reopen the connection pool,
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# but we don't want the end user to wait while it opens.
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# Raise syntax doesn't allow this, so we use a try/catch
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# block.
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try:
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logger.error("Can't contact the Registry. Pool was not running.")
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raise RegistryError("Can't contact the Registry. Pool was not running.")
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except RegistryError as err:
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raise err
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finally:
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# Code execution will halt after here.
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# The end user will need to recall .send.
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self.start_connection_pool()
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counter = 0 # we'll try 3 times
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while True:
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def send(self, command, *, cleaned=False):
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"""Login, send the command, then close the connection. Tries 3 times."""
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logger.info("send called")
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# try to prevent use of this method without appropriate safeguards
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if not cleaned:
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raise ValueError("Please sanitize user input before sending it.")
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try:
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return self._send(command)
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except RegistryError as err:
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if counter < 3 and (err.should_retry() or err.is_transport_error()):
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logger.info(f"Retrying transport error. Attempt #{counter+1} of 3.")
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counter += 1
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sleep((counter * 50) / 1000) # sleep 50 ms to 150 ms
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else: # don't try again
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raise err
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def get_pool(self):
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"""Get the current pool instance"""
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return self._pool
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def _create_pool(self, client, login, options):
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"""Creates and returns new pool instance"""
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logger.info("New pool was created")
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return EPPConnectionPool(client, login, options)
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def start_connection_pool(self, restart_pool_if_exists=True):
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"""Starts a connection pool for the registry.
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restart_pool_if_exists -> bool:
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If an instance of the pool already exists,
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then then that instance will be killed first.
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It is generally recommended to keep this enabled.
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"""
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# Since we reuse the same creds for each pool, we can test on
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# one socket, and if successful, then we know we can connect.
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if not self._test_registry_connection_success():
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logger.warning("start_connection_pool() -> Cannot contact the Registry")
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self.pool_status.connection_success = False
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if (
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err.is_transport_error()
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or err.is_connection_error()
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or err.is_session_error()
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or err.is_server_error()
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or err.should_retry()
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):
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return self._retry(command)
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else:
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self.pool_status.connection_success = True
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# If this function is reinvoked, then ensure
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# that we don't have duplicate data sitting around.
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if self._pool is not None and restart_pool_if_exists:
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logger.info("Connection pool restarting...")
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self.kill_pool()
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logger.info("Old pool killed")
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self._pool = self._create_pool(self._client, self._login, self.pool_options)
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self.pool_status.pool_running = True
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self.pool_status.pool_hanging = False
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logger.info("Connection pool started")
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def kill_pool(self):
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"""Kills the existing pool. Use this instead
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of self._pool = None, as that doesn't clear
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gevent instances."""
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if self._pool is not None:
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self._pool.kill_all_connections()
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self._pool = None
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self.pool_status.pool_running = False
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return None
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logger.info("kill_pool() was invoked but there was no pool to delete")
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def _test_registry_connection_success(self):
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"""Check that determines if our login
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credentials are valid, and/or if the Registrar
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can be contacted
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"""
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# This is closed in test_connection_success
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socket = Socket(self._client, self._login)
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can_login = False
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# Something went wrong if this doesn't exist
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if hasattr(socket, "test_connection_success"):
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can_login = socket.test_connection_success()
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return can_login
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raise err
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try:
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@ -241,5 +172,4 @@ try:
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CLIENT = EPPLibWrapper()
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logger.info("registry client initialized")
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except Exception:
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CLIENT = None # type: ignore
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logger.warning("Unable to configure epplib. Registrar cannot contact registry.", exc_info=True)
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@ -1,102 +0,0 @@
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import logging
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from time import sleep
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try:
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from epplib import commands
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from epplib.client import Client
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except ImportError:
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pass
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from .errors import LoginError
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logger = logging.getLogger(__name__)
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class Socket:
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"""Context manager which establishes a TCP connection with registry."""
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def __init__(self, client: Client, login: commands.Login) -> None:
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"""Save the epplib client and login details."""
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self.client = client
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self.login = login
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def __enter__(self):
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"""Runs connect(), which opens a connection with EPPLib."""
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self.connect()
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def __exit__(self, *args, **kwargs):
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"""Runs disconnect(), which closes a connection with EPPLib."""
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self.disconnect()
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def connect(self):
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"""Use epplib to connect."""
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logger.info("Opening socket on connection pool")
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self.client.connect()
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response = self.client.send(self.login)
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if self.is_login_error(response.code):
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self.client.close()
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raise LoginError(response.msg)
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return self.client
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def disconnect(self):
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"""Close the connection."""
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logger.info("Closing socket on connection pool")
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try:
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self.client.send(commands.Logout())
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self.client.close()
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except Exception as err:
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logger.warning("Connection to registry was not cleanly closed.")
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logger.error(err)
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def send(self, command):
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"""Sends a command to the registry.
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If the RegistryError code is >= 2000,
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then this function raises a LoginError.
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The calling function should handle this."""
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response = self.client.send(command)
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if self.is_login_error(response.code):
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self.client.close()
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raise LoginError(response.msg)
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return response
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def is_login_error(self, code):
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"""Returns the result of code >= 2000 for RegistryError.
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This indicates that something weird happened on the Registry,
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and that we should return a LoginError."""
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return code >= 2000
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def test_connection_success(self):
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"""Tests if a successful connection can be made with the registry.
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Tries 3 times."""
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# Something went wrong if this doesn't exist
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if not hasattr(self.client, "connect"):
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logger.warning("self.client does not have a connect attribute")
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return False
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counter = 0 # we'll try 3 times
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while True:
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try:
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self.client.connect()
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response = self.client.send(self.login)
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except (LoginError, OSError) as err:
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logger.error(err)
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should_retry = True
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if isinstance(err, LoginError):
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should_retry = err.should_retry()
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if should_retry and counter < 3:
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counter += 1
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sleep((counter * 50) / 1000) # sleep 50 ms to 150 ms
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else: # don't try again
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return False
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else:
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# If we encounter a login error, fail
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if self.is_login_error(response.code):
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logger.warning("A login error was found in test_connection_success")
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return False
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# Otherwise, just return true
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return True
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finally:
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self.disconnect()
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@ -5,8 +5,6 @@ from dateutil.tz import tzlocal # type: ignore
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from django.test import TestCase
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from epplibwrapper.client import EPPLibWrapper
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from epplibwrapper.errors import RegistryError
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from epplibwrapper.socket import Socket
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from epplibwrapper.utility.pool import EPPConnectionPool
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from registrar.models.domain import registry
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from contextlib import ExitStack
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from .common import less_console_noise
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@ -27,236 +25,236 @@ logger = logging.getLogger(__name__)
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class TestConnectionPool(TestCase):
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"""Tests for our connection pooling behaviour"""
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def setUp(self):
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# Mimic the settings added to settings.py
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self.pool_options = {
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# Current pool size
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"size": 1,
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# Which errors the pool should look out for
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"exc_classes": (TransportError,),
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# Occasionally pings the registry to keep the connection alive.
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# Value in seconds => (keepalive / size)
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"keepalive": 60,
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}
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# def setUp(self):
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# # Mimic the settings added to settings.py
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# self.pool_options = {
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# # Current pool size
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# "size": 1,
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# # Which errors the pool should look out for
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# "exc_classes": (TransportError,),
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# # Occasionally pings the registry to keep the connection alive.
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# # Value in seconds => (keepalive / size)
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# "keepalive": 60,
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# }
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def fake_socket(self, login, client):
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# Linter reasons
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pw = "none"
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# Create a fake client object
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fake_client = Client(
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SocketTransport(
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"none",
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cert_file="path/to/cert_file",
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key_file="path/to/key_file",
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password=pw,
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)
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)
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# def fake_socket(self, login, client):
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# # Linter reasons
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# pw = "none"
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# # Create a fake client object
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# fake_client = Client(
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# SocketTransport(
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# "none",
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# cert_file="path/to/cert_file",
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# key_file="path/to/key_file",
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# password=pw,
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# )
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# )
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return Socket(fake_client, MagicMock())
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# return Socket(fake_client, MagicMock())
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def patch_success(self):
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return True
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# def patch_success(self):
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# return True
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def fake_send(self, command, cleaned=None):
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mock = MagicMock(
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code=1000,
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msg="Command completed successfully",
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res_data=None,
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cl_tr_id="xkw1uo#2023-10-17T15:29:09.559376",
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sv_tr_id="5CcH4gxISuGkq8eqvr1UyQ==-35a",
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extensions=[],
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msg_q=None,
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)
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return mock
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# def fake_send(self, command, cleaned=None):
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# mock = MagicMock(
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# code=1000,
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# msg="Command completed successfully",
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# res_data=None,
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# cl_tr_id="xkw1uo#2023-10-17T15:29:09.559376",
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# sv_tr_id="5CcH4gxISuGkq8eqvr1UyQ==-35a",
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# extensions=[],
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# msg_q=None,
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# )
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# return mock
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def fake_client(mock_client):
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pw = "none"
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client = Client(
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SocketTransport(
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"none",
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cert_file="path/to/cert_file",
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key_file="path/to/key_file",
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password=pw,
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)
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)
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return client
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# def fake_client(mock_client):
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# pw = "none"
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# client = Client(
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# SocketTransport(
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# "none",
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# cert_file="path/to/cert_file",
|
||||
# key_file="path/to/key_file",
|
||||
# password=pw,
|
||||
# )
|
||||
# )
|
||||
# return client
|
||||
|
||||
@patch.object(EPPLibWrapper, "_test_registry_connection_success", patch_success)
|
||||
def test_pool_sends_data(self):
|
||||
"""A .send is invoked on the pool successfully"""
|
||||
expected_result = {
|
||||
"cl_tr_id": None,
|
||||
"code": 1000,
|
||||
"extensions": [],
|
||||
"msg": "Command completed successfully",
|
||||
"msg_q": None,
|
||||
"res_data": [
|
||||
info.InfoDomainResultData(
|
||||
roid="DF1340360-GOV",
|
||||
statuses=[
|
||||
common.Status(
|
||||
state="serverTransferProhibited",
|
||||
description=None,
|
||||
lang="en",
|
||||
),
|
||||
common.Status(state="inactive", description=None, lang="en"),
|
||||
],
|
||||
cl_id="gov2023-ote",
|
||||
cr_id="gov2023-ote",
|
||||
cr_date=datetime.datetime(2023, 8, 15, 23, 56, 36, tzinfo=tzlocal()),
|
||||
up_id="gov2023-ote",
|
||||
up_date=datetime.datetime(2023, 8, 17, 2, 3, 19, tzinfo=tzlocal()),
|
||||
tr_date=None,
|
||||
name="test3.gov",
|
||||
registrant="TuaWnx9hnm84GCSU",
|
||||
admins=[],
|
||||
nsset=None,
|
||||
keyset=None,
|
||||
ex_date=datetime.date(2024, 8, 15),
|
||||
auth_info=info.DomainAuthInfo(pw="2fooBAR123fooBaz"),
|
||||
)
|
||||
],
|
||||
"sv_tr_id": "wRRNVhKhQW2m6wsUHbo/lA==-29a",
|
||||
}
|
||||
# @patch.object(EPPLibWrapper, "_test_registry_connection_success", patch_success)
|
||||
# def test_pool_sends_data(self):
|
||||
# """A .send is invoked on the pool successfully"""
|
||||
# expected_result = {
|
||||
# "cl_tr_id": None,
|
||||
# "code": 1000,
|
||||
# "extensions": [],
|
||||
# "msg": "Command completed successfully",
|
||||
# "msg_q": None,
|
||||
# "res_data": [
|
||||
# info.InfoDomainResultData(
|
||||
# roid="DF1340360-GOV",
|
||||
# statuses=[
|
||||
# common.Status(
|
||||
# state="serverTransferProhibited",
|
||||
# description=None,
|
||||
# lang="en",
|
||||
# ),
|
||||
# common.Status(state="inactive", description=None, lang="en"),
|
||||
# ],
|
||||
# cl_id="gov2023-ote",
|
||||
# cr_id="gov2023-ote",
|
||||
# cr_date=datetime.datetime(2023, 8, 15, 23, 56, 36, tzinfo=tzlocal()),
|
||||
# up_id="gov2023-ote",
|
||||
# up_date=datetime.datetime(2023, 8, 17, 2, 3, 19, tzinfo=tzlocal()),
|
||||
# tr_date=None,
|
||||
# name="test3.gov",
|
||||
# registrant="TuaWnx9hnm84GCSU",
|
||||
# admins=[],
|
||||
# nsset=None,
|
||||
# keyset=None,
|
||||
# ex_date=datetime.date(2024, 8, 15),
|
||||
# auth_info=info.DomainAuthInfo(pw="2fooBAR123fooBaz"),
|
||||
# )
|
||||
# ],
|
||||
# "sv_tr_id": "wRRNVhKhQW2m6wsUHbo/lA==-29a",
|
||||
# }
|
||||
|
||||
# Mock a response from EPP
|
||||
def fake_receive(command, cleaned=None):
|
||||
location = Path(__file__).parent / "utility" / "infoDomain.xml"
|
||||
xml = (location).read_bytes()
|
||||
return xml
|
||||
# # Mock a response from EPP
|
||||
# def fake_receive(command, cleaned=None):
|
||||
# location = Path(__file__).parent / "utility" / "infoDomain.xml"
|
||||
# xml = (location).read_bytes()
|
||||
# return xml
|
||||
|
||||
def do_nothing(command):
|
||||
pass
|
||||
# def do_nothing(command):
|
||||
# pass
|
||||
|
||||
# Mock what happens inside the "with"
|
||||
with ExitStack() as stack:
|
||||
stack.enter_context(patch.object(EPPConnectionPool, "_create_socket", self.fake_socket))
|
||||
stack.enter_context(patch.object(Socket, "connect", self.fake_client))
|
||||
stack.enter_context(patch.object(EPPConnectionPool, "kill_all_connections", do_nothing))
|
||||
stack.enter_context(patch.object(SocketTransport, "send", self.fake_send))
|
||||
stack.enter_context(patch.object(SocketTransport, "receive", fake_receive))
|
||||
with less_console_noise():
|
||||
# Restart the connection pool
|
||||
registry.start_connection_pool()
|
||||
# Pool should be running, and be the right size
|
||||
self.assertEqual(registry.pool_status.connection_success, True)
|
||||
self.assertEqual(registry.pool_status.pool_running, True)
|
||||
# # Mock what happens inside the "with"
|
||||
# with ExitStack() as stack:
|
||||
# stack.enter_context(patch.object(EPPConnectionPool, "_create_socket", self.fake_socket))
|
||||
# stack.enter_context(patch.object(Socket, "connect", self.fake_client))
|
||||
# stack.enter_context(patch.object(EPPConnectionPool, "kill_all_connections", do_nothing))
|
||||
# stack.enter_context(patch.object(SocketTransport, "send", self.fake_send))
|
||||
# stack.enter_context(patch.object(SocketTransport, "receive", fake_receive))
|
||||
# with less_console_noise():
|
||||
# # Restart the connection pool
|
||||
# registry.start_connection_pool()
|
||||
# # Pool should be running, and be the right size
|
||||
# self.assertEqual(registry.pool_status.connection_success, True)
|
||||
# self.assertEqual(registry.pool_status.pool_running, True)
|
||||
|
||||
# Send a command
|
||||
result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
# # Send a command
|
||||
# result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
|
||||
# Should this ever fail, it either means that the schema has changed,
|
||||
# or the pool is broken.
|
||||
# If the schema has changed: Update the associated infoDomain.xml file
|
||||
self.assertEqual(result.__dict__, expected_result)
|
||||
# # Should this ever fail, it either means that the schema has changed,
|
||||
# # or the pool is broken.
|
||||
# # If the schema has changed: Update the associated infoDomain.xml file
|
||||
# self.assertEqual(result.__dict__, expected_result)
|
||||
|
||||
# The number of open pools should match the number of requested ones.
|
||||
# If it is 0, then they failed to open
|
||||
self.assertEqual(len(registry._pool.conn), self.pool_options["size"])
|
||||
# Kill the connection pool
|
||||
registry.kill_pool()
|
||||
# # The number of open pools should match the number of requested ones.
|
||||
# # If it is 0, then they failed to open
|
||||
# self.assertEqual(len(registry._pool.conn), self.pool_options["size"])
|
||||
# # Kill the connection pool
|
||||
# registry.kill_pool()
|
||||
|
||||
@patch.object(EPPLibWrapper, "_test_registry_connection_success", patch_success)
|
||||
def test_pool_restarts_on_send(self):
|
||||
"""A .send is invoked, but the pool isn't running.
|
||||
The pool should restart."""
|
||||
expected_result = {
|
||||
"cl_tr_id": None,
|
||||
"code": 1000,
|
||||
"extensions": [],
|
||||
"msg": "Command completed successfully",
|
||||
"msg_q": None,
|
||||
"res_data": [
|
||||
info.InfoDomainResultData(
|
||||
roid="DF1340360-GOV",
|
||||
statuses=[
|
||||
common.Status(
|
||||
state="serverTransferProhibited",
|
||||
description=None,
|
||||
lang="en",
|
||||
),
|
||||
common.Status(state="inactive", description=None, lang="en"),
|
||||
],
|
||||
cl_id="gov2023-ote",
|
||||
cr_id="gov2023-ote",
|
||||
cr_date=datetime.datetime(2023, 8, 15, 23, 56, 36, tzinfo=tzlocal()),
|
||||
up_id="gov2023-ote",
|
||||
up_date=datetime.datetime(2023, 8, 17, 2, 3, 19, tzinfo=tzlocal()),
|
||||
tr_date=None,
|
||||
name="test3.gov",
|
||||
registrant="TuaWnx9hnm84GCSU",
|
||||
admins=[],
|
||||
nsset=None,
|
||||
keyset=None,
|
||||
ex_date=datetime.date(2024, 8, 15),
|
||||
auth_info=info.DomainAuthInfo(pw="2fooBAR123fooBaz"),
|
||||
)
|
||||
],
|
||||
"sv_tr_id": "wRRNVhKhQW2m6wsUHbo/lA==-29a",
|
||||
}
|
||||
# @patch.object(EPPLibWrapper, "_test_registry_connection_success", patch_success)
|
||||
# def test_pool_restarts_on_send(self):
|
||||
# """A .send is invoked, but the pool isn't running.
|
||||
# The pool should restart."""
|
||||
# expected_result = {
|
||||
# "cl_tr_id": None,
|
||||
# "code": 1000,
|
||||
# "extensions": [],
|
||||
# "msg": "Command completed successfully",
|
||||
# "msg_q": None,
|
||||
# "res_data": [
|
||||
# info.InfoDomainResultData(
|
||||
# roid="DF1340360-GOV",
|
||||
# statuses=[
|
||||
# common.Status(
|
||||
# state="serverTransferProhibited",
|
||||
# description=None,
|
||||
# lang="en",
|
||||
# ),
|
||||
# common.Status(state="inactive", description=None, lang="en"),
|
||||
# ],
|
||||
# cl_id="gov2023-ote",
|
||||
# cr_id="gov2023-ote",
|
||||
# cr_date=datetime.datetime(2023, 8, 15, 23, 56, 36, tzinfo=tzlocal()),
|
||||
# up_id="gov2023-ote",
|
||||
# up_date=datetime.datetime(2023, 8, 17, 2, 3, 19, tzinfo=tzlocal()),
|
||||
# tr_date=None,
|
||||
# name="test3.gov",
|
||||
# registrant="TuaWnx9hnm84GCSU",
|
||||
# admins=[],
|
||||
# nsset=None,
|
||||
# keyset=None,
|
||||
# ex_date=datetime.date(2024, 8, 15),
|
||||
# auth_info=info.DomainAuthInfo(pw="2fooBAR123fooBaz"),
|
||||
# )
|
||||
# ],
|
||||
# "sv_tr_id": "wRRNVhKhQW2m6wsUHbo/lA==-29a",
|
||||
# }
|
||||
|
||||
# Mock a response from EPP
|
||||
def fake_receive(command, cleaned=None):
|
||||
location = Path(__file__).parent / "utility" / "infoDomain.xml"
|
||||
xml = (location).read_bytes()
|
||||
return xml
|
||||
# # Mock a response from EPP
|
||||
# def fake_receive(command, cleaned=None):
|
||||
# location = Path(__file__).parent / "utility" / "infoDomain.xml"
|
||||
# xml = (location).read_bytes()
|
||||
# return xml
|
||||
|
||||
def do_nothing(command):
|
||||
pass
|
||||
# def do_nothing(command):
|
||||
# pass
|
||||
|
||||
# Mock what happens inside the "with"
|
||||
with ExitStack() as stack:
|
||||
stack.enter_context(patch.object(EPPConnectionPool, "_create_socket", self.fake_socket))
|
||||
stack.enter_context(patch.object(Socket, "connect", self.fake_client))
|
||||
stack.enter_context(patch.object(EPPConnectionPool, "kill_all_connections", do_nothing))
|
||||
stack.enter_context(patch.object(SocketTransport, "send", self.fake_send))
|
||||
stack.enter_context(patch.object(SocketTransport, "receive", fake_receive))
|
||||
with less_console_noise():
|
||||
# Start the connection pool
|
||||
registry.start_connection_pool()
|
||||
# Kill the connection pool
|
||||
registry.kill_pool()
|
||||
# # Mock what happens inside the "with"
|
||||
# with ExitStack() as stack:
|
||||
# stack.enter_context(patch.object(EPPConnectionPool, "_create_socket", self.fake_socket))
|
||||
# stack.enter_context(patch.object(Socket, "connect", self.fake_client))
|
||||
# stack.enter_context(patch.object(EPPConnectionPool, "kill_all_connections", do_nothing))
|
||||
# stack.enter_context(patch.object(SocketTransport, "send", self.fake_send))
|
||||
# stack.enter_context(patch.object(SocketTransport, "receive", fake_receive))
|
||||
# with less_console_noise():
|
||||
# # Start the connection pool
|
||||
# registry.start_connection_pool()
|
||||
# # Kill the connection pool
|
||||
# registry.kill_pool()
|
||||
|
||||
self.assertEqual(registry.pool_status.pool_running, False)
|
||||
# self.assertEqual(registry.pool_status.pool_running, False)
|
||||
|
||||
# An exception should be raised as end user will be informed
|
||||
# that they cannot connect to EPP
|
||||
with self.assertRaises(RegistryError):
|
||||
expected = "InfoDomain failed to execute due to a connection error."
|
||||
result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
self.assertEqual(result, expected)
|
||||
# # An exception should be raised as end user will be informed
|
||||
# # that they cannot connect to EPP
|
||||
# with self.assertRaises(RegistryError):
|
||||
# expected = "InfoDomain failed to execute due to a connection error."
|
||||
# result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
# self.assertEqual(result, expected)
|
||||
|
||||
# A subsequent command should be successful, as the pool restarts
|
||||
result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
# Should this ever fail, it either means that the schema has changed,
|
||||
# or the pool is broken.
|
||||
# If the schema has changed: Update the associated infoDomain.xml file
|
||||
self.assertEqual(result.__dict__, expected_result)
|
||||
# # A subsequent command should be successful, as the pool restarts
|
||||
# result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
# # Should this ever fail, it either means that the schema has changed,
|
||||
# # or the pool is broken.
|
||||
# # If the schema has changed: Update the associated infoDomain.xml file
|
||||
# self.assertEqual(result.__dict__, expected_result)
|
||||
|
||||
# The number of open pools should match the number of requested ones.
|
||||
# If it is 0, then they failed to open
|
||||
self.assertEqual(len(registry._pool.conn), self.pool_options["size"])
|
||||
# Kill the connection pool
|
||||
registry.kill_pool()
|
||||
# # The number of open pools should match the number of requested ones.
|
||||
# # If it is 0, then they failed to open
|
||||
# self.assertEqual(len(registry._pool.conn), self.pool_options["size"])
|
||||
# # Kill the connection pool
|
||||
# registry.kill_pool()
|
||||
|
||||
@patch.object(EPPLibWrapper, "_test_registry_connection_success", patch_success)
|
||||
def test_raises_connection_error(self):
|
||||
"""A .send is invoked on the pool, but registry connection is lost
|
||||
right as we send a command."""
|
||||
# @patch.object(EPPLibWrapper, "_test_registry_connection_success", patch_success)
|
||||
# def test_raises_connection_error(self):
|
||||
# """A .send is invoked on the pool, but registry connection is lost
|
||||
# right as we send a command."""
|
||||
|
||||
with ExitStack() as stack:
|
||||
stack.enter_context(patch.object(EPPConnectionPool, "_create_socket", self.fake_socket))
|
||||
stack.enter_context(patch.object(Socket, "connect", self.fake_client))
|
||||
with less_console_noise():
|
||||
# Start the connection pool
|
||||
registry.start_connection_pool()
|
||||
# with ExitStack() as stack:
|
||||
# stack.enter_context(patch.object(EPPConnectionPool, "_create_socket", self.fake_socket))
|
||||
# stack.enter_context(patch.object(Socket, "connect", self.fake_client))
|
||||
# with less_console_noise():
|
||||
# # Start the connection pool
|
||||
# registry.start_connection_pool()
|
||||
|
||||
# Pool should be running
|
||||
self.assertEqual(registry.pool_status.connection_success, True)
|
||||
self.assertEqual(registry.pool_status.pool_running, True)
|
||||
# # Pool should be running
|
||||
# self.assertEqual(registry.pool_status.connection_success, True)
|
||||
# self.assertEqual(registry.pool_status.pool_running, True)
|
||||
|
||||
# Try to send a command out - should fail
|
||||
with self.assertRaises(RegistryError):
|
||||
expected = "InfoDomain failed to execute due to a connection error."
|
||||
result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
self.assertEqual(result, expected)
|
||||
# # Try to send a command out - should fail
|
||||
# with self.assertRaises(RegistryError):
|
||||
# expected = "InfoDomain failed to execute due to a connection error."
|
||||
# result = registry.send(commands.InfoDomain(name="test.gov"), cleaned=True)
|
||||
# self.assertEqual(result, expected)
|
||||
|
|
|
|||
|
|
@ -1,151 +0,0 @@
|
|||
import logging
|
||||
from typing import List
|
||||
import gevent
|
||||
from geventconnpool import ConnectionPool
|
||||
from epplibwrapper.socket import Socket
|
||||
from epplibwrapper.utility.pool_error import PoolError, PoolErrorCodes
|
||||
|
||||
try:
|
||||
from epplib.commands import Hello
|
||||
from epplib.exceptions import TransportError
|
||||
except ImportError:
|
||||
pass
|
||||
|
||||
from gevent.lock import BoundedSemaphore
|
||||
from collections import deque
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
class EPPConnectionPool(ConnectionPool):
|
||||
"""A connection pool for EPPLib.
|
||||
|
||||
Args:
|
||||
client (Client): The client
|
||||
login (commands.Login): Login creds
|
||||
options (dict): Options for the ConnectionPool
|
||||
base class
|
||||
"""
|
||||
|
||||
def __init__(self, client, login, options: dict):
|
||||
# For storing shared credentials
|
||||
self._client = client
|
||||
self._login = login
|
||||
|
||||
# Keep track of each greenlet
|
||||
self.greenlets: List[gevent.Greenlet] = []
|
||||
|
||||
# Define optional pool settings.
|
||||
# Kept in a dict so that the parent class,
|
||||
# client.py, can maintain seperation/expandability
|
||||
self.size = 1
|
||||
if "size" in options:
|
||||
self.size = options["size"]
|
||||
|
||||
self.exc_classes = tuple((TransportError,))
|
||||
if "exc_classes" in options:
|
||||
self.exc_classes = options["exc_classes"]
|
||||
|
||||
self.keepalive = None
|
||||
if "keepalive" in options:
|
||||
self.keepalive = options["keepalive"]
|
||||
|
||||
# Determines the period in which new
|
||||
# gevent threads are spun up.
|
||||
# This time period is in seconds. So for instance, .1 would be .1 seconds.
|
||||
self.spawn_frequency = 0.1
|
||||
if "spawn_frequency" in options:
|
||||
self.spawn_frequency = options["spawn_frequency"]
|
||||
|
||||
self.conn: deque = deque()
|
||||
self.lock = BoundedSemaphore(self.size)
|
||||
|
||||
self.populate_all_connections()
|
||||
|
||||
def _new_connection(self):
|
||||
socket = self._create_socket(self._client, self._login)
|
||||
try:
|
||||
connection = socket.connect()
|
||||
return connection
|
||||
except Exception as err:
|
||||
message = f"Failed to execute due to a registry error: {err}"
|
||||
logger.error(message, exc_info=True)
|
||||
# We want to raise a pool error rather than a LoginError here
|
||||
# because if this occurs internally, we should handle this
|
||||
# differently than we otherwise would for LoginError.
|
||||
raise PoolError(code=PoolErrorCodes.NEW_CONNECTION_FAILED) from err
|
||||
|
||||
def _keepalive(self, c):
|
||||
"""Sends a command to the server to keep the connection alive."""
|
||||
try:
|
||||
# Sends a ping to the registry via EPPLib
|
||||
c.send(Hello())
|
||||
except Exception as err:
|
||||
message = "Failed to keep the connection alive."
|
||||
logger.error(message, exc_info=True)
|
||||
raise PoolError(code=PoolErrorCodes.KEEP_ALIVE_FAILED) from err
|
||||
|
||||
def _keepalive_periodic(self):
|
||||
"""Overriding _keepalive_periodic from geventconnpool so that PoolErrors
|
||||
are properly handled, as opposed to printing to stdout"""
|
||||
delay = float(self.keepalive) / self.size
|
||||
while 1:
|
||||
try:
|
||||
with self.get() as c:
|
||||
self._keepalive(c)
|
||||
except PoolError as err:
|
||||
logger.error(err.message, exc_info=True)
|
||||
except self.exc_classes:
|
||||
# Nothing to do, the pool will generate a new connection later
|
||||
pass
|
||||
gevent.sleep(delay)
|
||||
|
||||
def _create_socket(self, client, login) -> Socket:
|
||||
"""Creates and returns a socket instance"""
|
||||
socket = Socket(client, login)
|
||||
return socket
|
||||
|
||||
def get_connections(self):
|
||||
"""Returns the connection queue"""
|
||||
return self.conn
|
||||
|
||||
def kill_all_connections(self):
|
||||
"""Kills all active connections in the pool."""
|
||||
try:
|
||||
if len(self.conn) > 0 or len(self.greenlets) > 0:
|
||||
logger.info("Attempting to kill connections")
|
||||
gevent.killall(self.greenlets)
|
||||
|
||||
self.greenlets.clear()
|
||||
for connection in self.conn:
|
||||
connection.disconnect()
|
||||
self.conn.clear()
|
||||
|
||||
# Clear the semaphore
|
||||
self.lock = BoundedSemaphore(self.size)
|
||||
logger.info("Finished killing connections")
|
||||
else:
|
||||
logger.info("No connections to kill.")
|
||||
except Exception as err:
|
||||
logger.error("Could not kill all connections.")
|
||||
raise PoolError(code=PoolErrorCodes.KILL_ALL_FAILED) from err
|
||||
|
||||
def populate_all_connections(self):
|
||||
"""Generates the connection pool.
|
||||
If any connections exist, kill them first.
|
||||
Based off of the __init__ definition for geventconnpool.
|
||||
"""
|
||||
if len(self.conn) > 0 or len(self.greenlets) > 0:
|
||||
self.kill_all_connections()
|
||||
|
||||
# Setup the lock
|
||||
for i in range(self.size):
|
||||
self.lock.acquire()
|
||||
|
||||
# Open multiple connections
|
||||
for i in range(self.size):
|
||||
self.greenlets.append(gevent.spawn_later(self.spawn_frequency * i, self._addOne))
|
||||
|
||||
# Open a "keepalive" thread if we want to ping open connections
|
||||
if self.keepalive:
|
||||
self.greenlets.append(gevent.spawn(self._keepalive_periodic))
|
||||
|
|
@ -1,46 +0,0 @@
|
|||
from enum import IntEnum
|
||||
|
||||
|
||||
class PoolErrorCodes(IntEnum):
|
||||
"""Used in the PoolError class for
|
||||
error mapping.
|
||||
|
||||
Overview of contact error codes:
|
||||
- 2000 KILL_ALL_FAILED
|
||||
- 2001 NEW_CONNECTION_FAILED
|
||||
- 2002 KEEP_ALIVE_FAILED
|
||||
"""
|
||||
|
||||
KILL_ALL_FAILED = 2000
|
||||
NEW_CONNECTION_FAILED = 2001
|
||||
KEEP_ALIVE_FAILED = 2002
|
||||
|
||||
|
||||
class PoolError(Exception):
|
||||
"""
|
||||
Overview of contact error codes:
|
||||
- 2000 KILL_ALL_FAILED
|
||||
- 2001 NEW_CONNECTION_FAILED
|
||||
- 2002 KEEP_ALIVE_FAILED
|
||||
|
||||
Note: These are separate from the error codes returned from EppLib
|
||||
"""
|
||||
|
||||
# Used variables due to linter requirements
|
||||
kill_failed = "Could not kill all connections. Are multiple pools running?"
|
||||
conn_failed = "Failed to execute due to a registry error. See previous logs to determine the cause of the error."
|
||||
alive_failed = "Failed to keep the connection alive. It is likely that the registry returned a LoginError."
|
||||
_error_mapping = {
|
||||
PoolErrorCodes.KILL_ALL_FAILED: kill_failed,
|
||||
PoolErrorCodes.NEW_CONNECTION_FAILED: conn_failed,
|
||||
PoolErrorCodes.KEEP_ALIVE_FAILED: alive_failed,
|
||||
}
|
||||
|
||||
def __init__(self, *args, code=None, **kwargs):
|
||||
super().__init__(*args, **kwargs)
|
||||
self.code = code
|
||||
if self.code in self._error_mapping:
|
||||
self.message = self._error_mapping.get(self.code)
|
||||
|
||||
def __str__(self):
|
||||
return f"{self.message}"
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
class PoolStatus:
|
||||
"""A list of Booleans to keep track of Pool Status.
|
||||
|
||||
pool_running -> bool: Tracks if the pool itself is active or not.
|
||||
connection_success -> bool: Tracks if connection is possible with the registry.
|
||||
pool_hanging -> pool: Tracks if the pool has exceeded its timeout period.
|
||||
"""
|
||||
|
||||
def __init__(self):
|
||||
self.pool_running = False
|
||||
self.connection_success = False
|
||||
self.pool_hanging = False
|
||||
|
|
@ -601,20 +601,6 @@ SECRET_REGISTRY_KEY = secret_registry_key
|
|||
SECRET_REGISTRY_KEY_PASSPHRASE = secret_registry_key_passphrase
|
||||
SECRET_REGISTRY_HOSTNAME = secret_registry_hostname
|
||||
|
||||
# Use this variable to set the size of our connection pool in client.py
|
||||
# WARNING: Setting this value too high could cause frequent app crashes!
|
||||
# Having too many connections open could cause the sandbox to timeout,
|
||||
# as the spinup time could exceed the timeout time.
|
||||
EPP_CONNECTION_POOL_SIZE = 1
|
||||
|
||||
# Determines the interval in which we ping open connections in seconds
|
||||
# Calculated as POOL_KEEP_ALIVE / EPP_CONNECTION_POOL_SIZE
|
||||
POOL_KEEP_ALIVE = 60
|
||||
|
||||
# Determines how long we try to keep a pool alive for,
|
||||
# before restarting it.
|
||||
POOL_TIMEOUT = 60
|
||||
|
||||
# endregion
|
||||
# region: Security and Privacy----------------------------------------------###
|
||||
|
||||
|
|
|
|||
|
|
@ -5,7 +5,6 @@ import phonenumber_field.modelfields
|
|||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
("registrar", "0070_domainapplication_rejection_reason"),
|
||||
]
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue