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9027 lines (7596 loc) · 297 KB
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"""Server API.
Provides access to server API.
"""
import os
import re
import io
import json
import time
import logging
import collections
import platform
import copy
import uuid
import warnings
import itertools
from contextlib import contextmanager
import typing
from typing import Optional, Iterable, Tuple, Generator, Dict, List, Set, Any
try:
from http import HTTPStatus
except ImportError:
HTTPStatus = None
import requests
from requests.adapters import HTTPAdapter, Retry
try:
# This should be used if 'requests' have it available
from requests.exceptions import JSONDecodeError as RequestsJSONDecodeError
except ImportError:
# Older versions of 'requests' don't have custom exception for json
# decode error
try:
from simplejson import JSONDecodeError as RequestsJSONDecodeError
except ImportError:
from json import JSONDecodeError as RequestsJSONDecodeError
from .constants import (
SERVER_RETRIES_ENV_KEY,
DEFAULT_FOLDER_TYPE_FIELDS,
DEFAULT_TASK_TYPE_FIELDS,
DEFAULT_PRODUCT_TYPE_FIELDS,
DEFAULT_PROJECT_FIELDS,
DEFAULT_FOLDER_FIELDS,
DEFAULT_TASK_FIELDS,
DEFAULT_PRODUCT_FIELDS,
DEFAULT_VERSION_FIELDS,
DEFAULT_REPRESENTATION_FIELDS,
REPRESENTATION_FILES_FIELDS,
DEFAULT_WORKFILE_INFO_FIELDS,
DEFAULT_EVENT_FIELDS,
DEFAULT_ACTIVITY_FIELDS,
DEFAULT_USER_FIELDS,
DEFAULT_LINK_FIELDS,
)
from .graphql import GraphQlQuery, INTROSPECTION_QUERY
from .graphql_queries import (
project_graphql_query,
projects_graphql_query,
project_product_types_query,
product_types_query,
folders_graphql_query,
tasks_graphql_query,
tasks_by_folder_paths_graphql_query,
products_graphql_query,
versions_graphql_query,
representations_graphql_query,
representations_hierarchy_qraphql_query,
workfiles_info_graphql_query,
events_graphql_query,
users_graphql_query,
activities_graphql_query,
)
from .exceptions import (
FailedOperations,
UnauthorizedError,
AuthenticationError,
ServerNotReached,
ServerError,
HTTPRequestError,
UnsupportedServerVersion,
)
from .utils import (
RepresentationParents,
RepresentationHierarchy,
prepare_query_string,
logout_from_server,
create_entity_id,
entity_data_json_default,
failed_json_default,
TransferProgress,
ThumbnailContent,
get_default_timeout,
get_default_settings_variant,
get_default_site_id,
NOT_SET,
get_media_mime_type,
SortOrder,
)
if typing.TYPE_CHECKING:
from typing import Union
from .typing import (
ActivityType,
ActivityReferenceType,
LinkDirection,
EventFilter,
AttributeScope,
AttributeSchemaDataDict,
AttributeSchemaDict,
AttributesSchemaDict,
AddonsInfoDict,
InstallersInfoDict,
DependencyPackagesDict,
DevBundleAddonInfoDict,
BundlesInfoDict,
AnatomyPresetDict,
SecretDict,
AnyEntityDict,
ProjectDict,
FolderDict,
TaskDict,
ProductDict,
VersionDict,
RepresentationDict,
WorkfileInfoDict,
FlatFolderDict,
ProjectHierarchyDict,
ProductTypeDict,
StreamType,
)
PatternType = type(re.compile(""))
JSONDecodeError = getattr(json, "JSONDecodeError", ValueError)
# This should be collected from server schema
PROJECT_NAME_ALLOWED_SYMBOLS = "a-zA-Z0-9_"
PROJECT_NAME_REGEX = re.compile(
"^[{}]+$".format(PROJECT_NAME_ALLOWED_SYMBOLS)
)
_PLACEHOLDER = object()
VERSION_REGEX = re.compile(
r"(?P<major>0|[1-9]\d*)"
r"\.(?P<minor>0|[1-9]\d*)"
r"\.(?P<patch>0|[1-9]\d*)"
r"(?:-(?P<prerelease>[a-zA-Z\d\-.]*))?"
r"(?:\+(?P<buildmetadata>[a-zA-Z\d\-.]*))?"
)
def _convert_list_filter_value(value):
if value is None:
return None
if isinstance(value, PatternType):
return [value.pattern]
if isinstance(value, (int, float, str, bool)):
return [value]
return list(set(value))
def _prepare_list_filters(output, *args, **kwargs):
for key, value in itertools.chain(args, kwargs.items()):
value = _convert_list_filter_value(value)
if value is None:
continue
if not value:
return False
output[key] = value
return True
def _get_description(response):
if HTTPStatus is None:
return str(response.orig_response)
return HTTPStatus(response.status).description
class RequestType:
def __init__(self, name: str):
self.name: str = name
def __hash__(self):
return self.name.__hash__()
class RequestTypes:
get = RequestType("GET")
post = RequestType("POST")
put = RequestType("PUT")
patch = RequestType("PATCH")
delete = RequestType("DELETE")
class RestApiResponse(object):
"""API Response."""
def __init__(self, response, data=None):
if response is None:
status_code = 500
else:
status_code = response.status_code
self._response = response
self.status = status_code
self._data = data
@property
def text(self):
if self._response is None:
return self.detail
return self._response.text
@property
def orig_response(self):
return self._response
@property
def headers(self):
if self._response is None:
return {}
return self._response.headers
@property
def data(self):
if self._data is None:
try:
self._data = self.orig_response.json()
except RequestsJSONDecodeError:
self._data = {}
return self._data
@property
def content(self):
if self._response is None:
return b""
return self._response.content
@property
def content_type(self) -> Optional[str]:
return self.headers.get("Content-Type")
@property
def detail(self):
detail = self.get("detail")
if detail:
return detail
return _get_description(self)
@property
def status_code(self) -> int:
return self.status
@property
def ok(self) -> bool:
if self._response is not None:
return self._response.ok
return False
def raise_for_status(self, message=None):
if self._response is None:
if self._data and self._data.get("detail"):
raise ServerError(self._data["detail"])
raise ValueError("Response is not available.")
if self.status_code == 401:
raise UnauthorizedError("Missing or invalid authentication token")
try:
self._response.raise_for_status()
except requests.exceptions.HTTPError as exc:
if message is None:
message = str(exc)
raise HTTPRequestError(message, exc.response)
def __enter__(self, *args, **kwargs):
return self._response.__enter__(*args, **kwargs)
def __contains__(self, key):
return key in self.data
def __repr__(self):
return f"<{self.__class__.__name__} [{self.status}]>"
def __len__(self):
return int(200 <= self.status < 400)
def __bool__(self):
return 200 <= self.status < 400
def __getitem__(self, key):
return self.data[key]
def get(self, key, default=None):
data = self.data
if isinstance(data, dict):
return self.data.get(key, default)
return default
class GraphQlResponse:
"""GraphQl response."""
def __init__(self, data):
self.data = data
self.errors = data.get("errors")
def __len__(self):
if self.errors:
return 0
return 1
def __repr__(self):
if self.errors:
message = self.errors[0]["message"]
return f"<{self.__class__.__name__} errors={message}>"
return f"<{self.__class__.__name__}>"
def fill_own_attribs(entity):
if not entity or not entity.get("attrib"):
return
attributes = set(entity["ownAttrib"])
own_attrib = {}
entity["ownAttrib"] = own_attrib
for key, value in entity["attrib"].items():
if key not in attributes:
own_attrib[key] = None
else:
own_attrib[key] = copy.deepcopy(value)
class _AsUserStack:
"""Handle stack of users used over server api connection in service mode.
ServerAPI can behave as other users if it is using special API key.
Examples:
>>> stack = _AsUserStack()
>>> stack.set_default_username("DefaultName")
>>> print(stack.username)
DefaultName
>>> with stack.as_user("Other1"):
... print(stack.username)
... with stack.as_user("Other2"):
... print(stack.username)
... print(stack.username)
... stack.clear()
... print(stack.username)
Other1
Other2
Other1
None
>>> print(stack.username)
None
>>> stack.set_default_username("DefaultName")
>>> print(stack.username)
DefaultName
"""
def __init__(self):
self._users_by_id = {}
self._user_ids = []
self._last_user = None
self._default_user = None
def clear(self):
self._users_by_id = {}
self._user_ids = []
self._last_user = None
self._default_user = None
@property
def username(self):
# Use '_user_ids' for boolean check to have ability "unset"
# default user
if self._user_ids:
return self._last_user
return self._default_user
def get_default_username(self):
return self._default_user
def set_default_username(self, username=None):
self._default_user = username
default_username = property(get_default_username, set_default_username)
@contextmanager
def as_user(self, username):
self._last_user = username
user_id = uuid.uuid4().hex
self._user_ids.append(user_id)
self._users_by_id[user_id] = username
try:
yield
finally:
self._users_by_id.pop(user_id, None)
if not self._user_ids:
return
# First check if is the user id the last one
was_last = self._user_ids[-1] == user_id
# Remove id from variables
if user_id in self._user_ids:
self._user_ids.remove(user_id)
if not was_last:
return
new_last_user = None
if self._user_ids:
new_last_user = self._users_by_id.get(self._user_ids[-1])
self._last_user = new_last_user
class ServerAPI(object):
"""Base handler of connection to server.
Requires url to server which is used as base for api and graphql calls.
Login cause that a session is used
Args:
base_url (str): Example: http://localhost:5000
token (Optional[str]): Access token (api key) to server.
site_id (Optional[str]): Unique name of site. Should be the same when
connection is created from the same machine under same user.
client_version (Optional[str]): Version of client application (used in
desktop client application).
default_settings_variant (Optional[Literal["production", "staging"]]):
Settings variant used by default if a method for settings won't
get any (by default is 'production').
sender_type (Optional[str]): Sender type of requests. Used in server
logs and propagated into events.
sender (Optional[str]): Sender of requests, more specific than
sender type (e.g. machine name). Used in server logs and
propagated into events.
ssl_verify (Optional[Union[bool, str]]): Verify SSL certificate
Looks for env variable value ``AYON_CA_FILE`` by default. If not
available then 'True' is used.
cert (Optional[str]): Path to certificate file. Looks for env
variable value ``AYON_CERT_FILE`` by default.
create_session (Optional[bool]): Create session for connection if
token is available. Default is True.
timeout (Optional[float]): Timeout for requests.
max_retries (Optional[int]): Number of retries for requests.
"""
_default_max_retries = 3
# 1 MB chunk by default
# TODO find out if these are reasonable default value
default_download_chunk_size = 1024 * 1024
default_upload_chunk_size = 1024 * 1024
def __init__(
self,
base_url: str,
token: Optional[str] = None,
site_id: Optional[str] = NOT_SET,
client_version: Optional[str] = None,
default_settings_variant: Optional[str] = None,
sender_type: Optional[str] = None,
sender: Optional[str] = None,
ssl_verify: Optional["Union[bool, str]"]=None,
cert: Optional[str] = None,
create_session: bool = True,
timeout: Optional[float] = None,
max_retries: Optional[int] = None,
):
if not base_url:
raise ValueError(f"Invalid server URL {str(base_url)}")
self._session = None
self._session_handlers = {}
base_url = base_url.rstrip("/")
self._base_url: str = base_url
self._rest_url: str = f"{base_url}/api"
self._graphql_url: str = f"{base_url}/graphql"
self._log: logging.Logger = logging.getLogger(self.__class__.__name__)
self._access_token: Optional[str] = token
# Allow to have 'site_id' to 'None'
if site_id is NOT_SET:
site_id = get_default_site_id()
self._site_id: Optional[str] = site_id
self._client_version: Optional[str] = client_version
self._default_settings_variant: str = (
default_settings_variant
or get_default_settings_variant()
)
self._sender: Optional[str] = sender
self._sender_type: Optional[str] = sender_type
self._timeout: float = 0.0
self._max_retries: int = 0
# Set timeout and max retries based on passed values
self.set_timeout(timeout)
self.set_max_retries(max_retries)
if ssl_verify is None:
# Custom AYON env variable for CA file or 'True'
# - that should cover most default behaviors in 'requests'
# with 'certifi'
ssl_verify = os.environ.get("AYON_CA_FILE") or True
if cert is None:
cert = os.environ.get("AYON_CERT_FILE")
self._ssl_verify = ssl_verify
self._cert = cert
self._access_token_is_service = None
self._token_is_valid = None
self._token_validation_started = False
self._server_available = None
self._server_version = None
self._server_version_tuple = None
self._graphql_allows_data_in_query = None
# Attributes cache
self._attributes_schema = None
self._entity_type_attributes_cache = {}
self._as_user_stack = _AsUserStack()
# Create session
if self._access_token and create_session:
self.validate_server_availability()
self.create_session()
@property
def log(self) -> logging.Logger:
return self._log
def get_base_url(self):
return self._base_url
def get_rest_url(self):
return self._rest_url
base_url = property(get_base_url)
rest_url = property(get_rest_url)
def get_ssl_verify(self):
"""Enable ssl verification.
Returns:
bool: Current state of ssl verification.
"""
return self._ssl_verify
def set_ssl_verify(self, ssl_verify):
"""Change ssl verification state.
Args:
ssl_verify (Union[bool, str, None]): Enabled/disable
ssl verification, can be a path to file.
"""
if self._ssl_verify == ssl_verify:
return
self._ssl_verify = ssl_verify
if self._session is not None:
self._session.verify = ssl_verify
def get_cert(self):
"""Current cert file used for connection to server.
Returns:
Union[str, None]: Path to cert file.
"""
return self._cert
def set_cert(self, cert):
"""Change cert file used for connection to server.
Args:
cert (Union[str, None]): Path to cert file.
"""
if cert == self._cert:
return
self._cert = cert
if self._session is not None:
self._session.cert = cert
ssl_verify = property(get_ssl_verify, set_ssl_verify)
cert = property(get_cert, set_cert)
@classmethod
def get_default_timeout(cls):
"""Default value for requests timeout.
Utils function 'get_default_timeout' is used by default.
Returns:
float: Timeout value in seconds.
"""
return get_default_timeout()
@classmethod
def get_default_max_retries(cls):
"""Default value for requests max retries.
First looks for environment variable SERVER_RETRIES_ENV_KEY, which
can affect max retries value. If not available then use class
attribute '_default_max_retries'.
Returns:
int: Max retries value.
"""
try:
return int(os.environ.get(SERVER_RETRIES_ENV_KEY))
except (ValueError, TypeError):
pass
return cls._default_max_retries
def get_timeout(self) -> float:
"""Current value for requests timeout.
Returns:
float: Timeout value in seconds.
"""
return self._timeout
def set_timeout(self, timeout: Optional[float]):
"""Change timeout value for requests.
Args:
timeout (Optional[float]): Timeout value in seconds.
"""
if timeout is None:
timeout = self.get_default_timeout()
self._timeout = float(timeout)
def get_max_retries(self) -> int:
"""Current value for requests max retries.
Returns:
int: Max retries value.
"""
return self._max_retries
def set_max_retries(self, max_retries: Optional[int]):
"""Change max retries value for requests.
Args:
max_retries (Optional[int]): Max retries value.
"""
if max_retries is None:
max_retries = self.get_default_max_retries()
max_retries = int(max_retries)
if max_retries < 0:
max_retries = 0
if max_retries == self._max_retries:
return
self._max_retries = max_retries
for handler in self._session_handlers.values():
handler.max_retries = Retry.from_int(max_retries)
timeout = property(get_timeout, set_timeout)
max_retries = property(get_max_retries, set_max_retries)
@property
def access_token(self) -> Optional[str]:
"""Access token used for authorization to server.
Returns:
Optional[str]: Token string or None if not authorized yet.
"""
return self._access_token
def is_service_user(self) -> bool:
"""Check if connection is using service API key.
Returns:
bool: Used api key belongs to service user.
"""
if not self.has_valid_token:
raise ValueError("User is not logged in.")
return bool(self._access_token_is_service)
def get_site_id(self) -> Optional[str]:
"""Site id used for connection.
Site id tells server from which machine/site is connection created and
is used for default site overrides when settings are received.
Returns:
Optional[str]: Site id value or None if not filled.
"""
return self._site_id
def set_site_id(self, site_id: Optional[str]):
"""Change site id of connection.
Behave as specific site for server. It affects default behavior of
settings getter methods.
Args:
site_id (Optional[str]): Site id value, or 'None' to unset.
"""
if self._site_id == site_id:
return
self._site_id = site_id
# Recreate session on machine id change
self._update_session_headers()
site_id = property(get_site_id, set_site_id)
def get_client_version(self) -> Optional[str]:
"""Version of client used to connect to server.
Client version is AYON client build desktop application.
Returns:
str: Client version string used in connection.
"""
return self._client_version
def set_client_version(self, client_version: Optional[str]):
"""Set version of client used to connect to server.
Client version is AYON client build desktop application.
Args:
client_version (Optional[str]): Client version string.
"""
if self._client_version == client_version:
return
self._client_version = client_version
self._update_session_headers()
client_version = property(get_client_version, set_client_version)
def get_default_settings_variant(self) -> str:
"""Default variant used for settings.
Returns:
Union[str, None]: name of variant or None.
"""
return self._default_settings_variant
def set_default_settings_variant(self, variant: str):
"""Change default variant for addon settings.
Note:
It is recommended to set only 'production' or 'staging' variants
as default variant.
Args:
variant (str): Settings variant name. It is possible to use
'production', 'staging' or name of dev bundle.
"""
self._default_settings_variant = variant
default_settings_variant = property(
get_default_settings_variant,
set_default_settings_variant
)
def get_sender(self) -> str:
"""Sender used to send requests.
Returns:
Union[str, None]: Sender name or None.
"""
return self._sender
def set_sender(self, sender: Optional[str]):
"""Change sender used for requests.
Args:
sender (Optional[str]): Sender name or None.
"""
if sender == self._sender:
return
self._sender = sender
self._update_session_headers()
sender = property(get_sender, set_sender)
def get_sender_type(self) -> Optional[str]:
"""Sender type used to send requests.
Sender type is supported since AYON server 1.5.5 .
Returns:
Optional[str]: Sender type or None.
"""
return self._sender_type
def set_sender_type(self, sender_type: Optional[str]):
"""Change sender type used for requests.
Args:
sender_type (Optional[str]): Sender type or None.
"""
if sender_type == self._sender_type:
return
self._sender_type = sender_type
self._update_session_headers()
sender_type = property(get_sender_type, set_sender_type)
def get_default_service_username(self) -> Optional[str]:
"""Default username used for callbacks when used with service API key.
Returns:
Union[str, None]: Username if any was filled.
"""
return self._as_user_stack.get_default_username()
def set_default_service_username(self, username: Optional[str] = None):
"""Service API will work as other user.
Service API keys can work as other user. It can be temporary using
context manager 'as_user' or it is possible to set default username if
'as_user' context manager is not entered.
Args:
username (Optional[str]): Username to work as when service.
Raises:
ValueError: When connection is not yet authenticated or api key
is not service token.
"""
current_username = self._as_user_stack.get_default_username()
if current_username == username:
return
if not self.has_valid_token:
raise ValueError(
"Authentication of connection did not happen yet."
)
if not self._access_token_is_service:
raise ValueError(
"Can't set service username. API key is not a service token."
)
self._as_user_stack.set_default_username(username)
if self._as_user_stack.username == username:
self._update_session_headers()
@contextmanager
def as_username(
self,
username: "Union[str, None]",
ignore_service_error: bool = False,
):
"""Service API will temporarily work as other user.
This method can be used only if service API key is logged in.
Args:
username (Union[str, None]): Username to work as when service.
ignore_service_error (Optional[bool]): Ignore error when service
API key is not used.
Raises:
ValueError: When connection is not yet authenticated or api key
is not service token.
"""
if not self.has_valid_token:
raise ValueError(
"Authentication of connection did not happen yet."
)
if not self._access_token_is_service:
if ignore_service_error:
yield None
return
raise ValueError(
"Can't set service username. API key is not a service token."
)
try:
with self._as_user_stack.as_user(username) as o:
self._update_session_headers()
yield o
finally:
self._update_session_headers()
@property
def is_server_available(self) -> bool:
if self._server_available is None:
response = requests.get(
self._base_url,
cert=self._cert,
verify=self._ssl_verify
)
self._server_available = response.status_code == 200
return self._server_available
@property
def has_valid_token(self) -> bool:
if self._access_token is None:
return False
if self._token_is_valid is None:
self.validate_token()
return self._token_is_valid
def validate_server_availability(self):
if not self.is_server_available:
raise ServerNotReached(
f"Server \"{self._base_url}\" can't be reached"
)
def validate_token(self) -> bool:
try:
self._token_validation_started = True
# TODO add other possible validations
# - existence of 'user' key in info
# - validate that 'site_id' is in 'sites' in info
self.get_info()
self.get_user()
self._token_is_valid = True
except UnauthorizedError:
self._token_is_valid = False
finally:
self._token_validation_started = False
return self._token_is_valid
def set_token(self, token: Optional[str]):
self.reset_token()
self._access_token = token
self.get_user()
def reset_token(self):
self._access_token = None
self._token_is_valid = None
self.close_session()
def create_session(
self, ignore_existing: bool = True, force: bool = False
):
"""Create a connection session.
Session helps to keep connection with server without
need to reconnect on each call.
Args:
ignore_existing (bool): If session already exists,
ignore creation.
force (bool): If session already exists, close it and
create new.
"""
if force and self._session is not None:
self.close_session()
if self._session is not None:
if ignore_existing:
return
raise ValueError("Session is already created.")
self._as_user_stack.clear()
# Validate token before session creation
self.validate_token()
session, handlers = self._create_new_session()