mirror of
https://github.com/jointakahe/takahe.git
synced 2024-12-23 05:56:29 +00:00
Profile fetching now working on state machine
This commit is contained in:
parent
7746abbbb7
commit
2c3a129970
21 changed files with 304 additions and 383 deletions
|
@ -10,8 +10,7 @@ class DomainAdmin(admin.ModelAdmin):
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"date",
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"model_label",
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"instance_pk",
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"from_state",
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"to_state",
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"state",
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"error",
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]
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ordering = ["-date"]
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148
stator/graph.py
148
stator/graph.py
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@ -1,16 +1,4 @@
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from typing import (
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Any,
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Callable,
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ClassVar,
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Dict,
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List,
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Optional,
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Set,
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Tuple,
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Type,
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Union,
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cast,
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)
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from typing import Any, Callable, ClassVar, Dict, List, Optional, Set, Tuple, Type
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class StateGraph:
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@ -44,20 +32,43 @@ class StateGraph:
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terminal_states = set()
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initial_state = None
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for state in cls.states.values():
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# Check for multiple initial states
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if state.initial:
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if initial_state:
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raise ValueError(
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f"The graph has more than one initial state: {initial_state} and {state}"
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)
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initial_state = state
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# Collect terminal states
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if state.terminal:
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terminal_states.add(state)
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# Ensure they do NOT have a handler
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try:
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state.handler
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except AttributeError:
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pass
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else:
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raise ValueError(
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f"Terminal state '{state}' should not have a handler method ({state.handler_name})"
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)
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else:
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# Ensure non-terminal states have a try interval and a handler
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if not state.try_interval:
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raise ValueError(
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f"State '{state}' has no try_interval and is not terminal"
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)
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try:
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state.handler
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except AttributeError:
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raise ValueError(
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f"State '{state}' does not have a handler method ({state.handler_name})"
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)
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if initial_state is None:
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raise ValueError("The graph has no initial state")
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cls.initial_state = initial_state
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cls.terminal_states = terminal_states
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# Generate choices
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cls.choices = [(state, name) for name, state in cls.states.items()]
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cls.choices = [(name, name) for name in cls.states.keys()]
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class State:
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@ -65,49 +76,37 @@ class State:
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Represents an individual state
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"""
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def __init__(self, try_interval: float = 300):
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def __init__(
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self,
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try_interval: Optional[float] = None,
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handler_name: Optional[str] = None,
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):
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self.try_interval = try_interval
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self.handler_name = handler_name
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self.parents: Set["State"] = set()
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self.children: Dict["State", "Transition"] = {}
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self.children: Set["State"] = set()
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def _add_to_graph(self, graph: Type[StateGraph], name: str):
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self.graph = graph
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self.name = name
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self.graph.states[name] = self
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if self.handler_name is None:
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self.handler_name = f"handle_{self.name}"
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def __repr__(self):
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return f"<State {self.name}>"
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def __str__(self):
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return self.name
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def __eq__(self, other):
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if isinstance(other, State):
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return self is other
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return self.name == other
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def __len__(self):
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return len(self.name)
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def __hash__(self):
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return hash(id(self))
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def add_transition(
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self,
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other: "State",
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handler: Optional[Callable] = None,
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priority: int = 0,
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) -> Callable:
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def decorator(handler: Callable[[Any], bool]):
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self.children[other] = Transition(
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self,
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other,
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handler,
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priority=priority,
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)
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other.parents.add(self)
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return handler
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# If we're not being called as a decorator, invoke it immediately
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if handler is not None:
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decorator(handler)
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return decorator
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def add_manual_transition(self, other: "State"):
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self.children[other] = ManualTransition(self, other)
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other.parents.add(self)
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def transitions_to(self, other: "State"):
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self.children.add(other)
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other.parents.add(other)
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@property
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def initial(self):
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@ -117,59 +116,8 @@ class State:
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def terminal(self):
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return not self.children
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def transitions(self, automatic_only=False) -> List["Transition"]:
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"""
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Returns all transitions from this State in priority order
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"""
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if automatic_only:
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transitions = [t for t in self.children.values() if t.automatic]
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else:
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transitions = list(self.children.values())
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return sorted(transitions, key=lambda t: t.priority, reverse=True)
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class Transition:
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"""
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A possible transition from one state to another
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"""
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def __init__(
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self,
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from_state: State,
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to_state: State,
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handler: Union[str, Callable],
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priority: int = 0,
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):
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self.from_state = from_state
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self.to_state = to_state
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self.handler = handler
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self.priority = priority
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self.automatic = True
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def get_handler(self) -> Callable:
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"""
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Returns the handler (it might need resolving from a string)
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"""
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if isinstance(self.handler, str):
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self.handler = getattr(self.from_state.graph, self.handler)
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return cast(Callable, self.handler)
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def __repr__(self):
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return f"<Transition {self.from_state} -> {self.to_state}>"
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class ManualTransition(Transition):
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"""
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A possible transition from one state to another that cannot be done by
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the stator task runner, and must come from an external source.
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"""
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def __init__(
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self,
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from_state: State,
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to_state: State,
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):
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self.from_state = from_state
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self.to_state = to_state
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self.priority = 0
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self.automatic = False
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@property
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def handler(self) -> Callable[[Any], Optional[str]]:
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if self.handler_name is None:
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raise AttributeError("No handler defined")
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return getattr(self.graph, self.handler_name)
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@ -1,4 +1,4 @@
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# Generated by Django 4.1.3 on 2022-11-10 03:24
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# Generated by Django 4.1.3 on 2022-11-10 05:56
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from django.db import migrations, models
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@ -24,8 +24,7 @@ class Migration(migrations.Migration):
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),
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("model_label", models.CharField(max_length=200)),
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("instance_pk", models.CharField(max_length=200)),
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("from_state", models.CharField(max_length=200)),
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("to_state", models.CharField(max_length=200)),
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("state", models.CharField(max_length=200)),
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("date", models.DateTimeField(auto_now_add=True)),
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("error", models.TextField()),
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("error_details", models.TextField(blank=True, null=True)),
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@ -1,13 +1,13 @@
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import datetime
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import traceback
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from typing import ClassVar, List, Optional, Type, cast
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from typing import ClassVar, List, Optional, Type, Union, cast
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from asgiref.sync import sync_to_async
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from django.db import models, transaction
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from django.utils import timezone
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from django.utils.functional import classproperty
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from stator.graph import State, StateGraph, Transition
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from stator.graph import State, StateGraph
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class StateField(models.CharField):
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@ -29,16 +29,6 @@ class StateField(models.CharField):
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kwargs["graph"] = self.graph
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return name, path, args, kwargs
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def from_db_value(self, value, expression, connection):
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if value is None:
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return value
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return self.graph.states[value]
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def to_python(self, value):
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if isinstance(value, State) or value is None:
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return value
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return self.graph.states[value]
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def get_prep_value(self, value):
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if isinstance(value, State):
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return value.name
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@ -95,7 +85,9 @@ class StatorModel(models.Model):
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(
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models.Q(
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state_attempted__lte=timezone.now()
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- datetime.timedelta(seconds=state.try_interval)
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- datetime.timedelta(
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seconds=cast(float, state.try_interval)
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)
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)
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| models.Q(state_attempted__isnull=True)
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),
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@ -117,7 +109,7 @@ class StatorModel(models.Model):
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].select_for_update()
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)
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cls.objects.filter(pk__in=[i.pk for i in selected]).update(
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state_locked_until=timezone.now()
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state_locked_until=lock_expiry
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)
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return selected
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@ -143,36 +135,36 @@ class StatorModel(models.Model):
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self.state_ready = True
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self.save()
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async def atransition_attempt(self) -> bool:
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async def atransition_attempt(self) -> Optional[str]:
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"""
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Attempts to transition the current state by running its handler(s).
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"""
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# Try each transition in priority order
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for transition in self.state.transitions(automatic_only=True):
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try:
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success = await transition.get_handler()(self)
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except BaseException as e:
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await StatorError.acreate_from_instance(self, transition, e)
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traceback.print_exc()
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continue
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if success:
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await self.atransition_perform(transition.to_state.name)
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return True
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try:
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next_state = await self.state_graph.states[self.state].handler(self)
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except BaseException as e:
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await StatorError.acreate_from_instance(self, e)
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traceback.print_exc()
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else:
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if next_state:
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await self.atransition_perform(next_state)
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return next_state
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await self.__class__.objects.filter(pk=self.pk).aupdate(
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state_attempted=timezone.now(),
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state_locked_until=None,
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state_ready=False,
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)
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return False
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return None
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def transition_perform(self, state_name):
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def transition_perform(self, state: Union[State, str]):
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"""
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Transitions the instance to the given state name, forcibly.
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"""
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if state_name not in self.state_graph.states:
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raise ValueError(f"Invalid state {state_name}")
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if isinstance(state, State):
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state = state.name
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if state not in self.state_graph.states:
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raise ValueError(f"Invalid state {state}")
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self.__class__.objects.filter(pk=self.pk).update(
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state=state_name,
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state=state,
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state_changed=timezone.now(),
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state_attempted=None,
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state_locked_until=None,
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@ -194,11 +186,8 @@ class StatorError(models.Model):
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# The primary key of that model (probably int or str)
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instance_pk = models.CharField(max_length=200)
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# The state we moved from
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from_state = models.CharField(max_length=200)
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# The state we moved to (or tried to)
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to_state = models.CharField(max_length=200)
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# The state we were on
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state = models.CharField(max_length=200)
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# When it happened
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date = models.DateTimeField(auto_now_add=True)
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|
@ -213,14 +202,12 @@ class StatorError(models.Model):
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async def acreate_from_instance(
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cls,
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instance: StatorModel,
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transition: Transition,
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exception: Optional[BaseException] = None,
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):
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return await cls.objects.acreate(
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model_label=instance._meta.label_lower,
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instance_pk=str(instance.pk),
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from_state=transition.from_state,
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to_state=transition.to_state,
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state=instance.state,
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error=str(exception),
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error_details=traceback.format_exc(),
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)
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|
|
|
@ -1,6 +1,7 @@
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import asyncio
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import datetime
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import time
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import traceback
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import uuid
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from typing import List, Type
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|
@ -53,7 +54,7 @@ class StatorRunner:
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f"Attempting transition on {instance._meta.label_lower}#{instance.pk}"
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)
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self.tasks.append(
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asyncio.create_task(instance.atransition_attempt())
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asyncio.create_task(self.run_transition(instance))
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)
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self.handled += 1
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space_remaining -= 1
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|
@ -70,5 +71,17 @@ class StatorRunner:
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print("Complete")
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return self.handled
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async def run_transition(self, instance: StatorModel):
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"""
|
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Wrapper for atransition_attempt with fallback error handling
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"""
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try:
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await instance.atransition_attempt()
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except BaseException:
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traceback.print_exc()
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|
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def remove_completed_tasks(self):
|
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"""
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Removes all completed asyncio.Tasks from our local in-progress list
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"""
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self.tasks = [t for t in self.tasks if not t.done()]
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|
|
|
@ -9,39 +9,29 @@ def test_declare():
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lookups.
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"""
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fake_handler = lambda: True
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class TestGraph(StateGraph):
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initial = State()
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second = State()
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initial = State(try_interval=3600)
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second = State(try_interval=1)
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third = State()
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fourth = State()
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final = State()
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initial.add_transition(second, 60, handler=fake_handler)
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second.add_transition(third, 60, handler="check_third")
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initial.transitions_to(second)
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second.transitions_to(third)
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|
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def check_third(cls):
|
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return True
|
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@classmethod
|
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def handle_initial(cls):
|
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pass
|
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|
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@third.add_transition(fourth, 60)
|
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def check_fourth(cls):
|
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return True
|
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|
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fourth.add_manual_transition(final)
|
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@classmethod
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def handle_second(cls):
|
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pass
|
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|
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assert TestGraph.initial_state == TestGraph.initial
|
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assert TestGraph.terminal_states == {TestGraph.final}
|
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assert TestGraph.terminal_states == {TestGraph.third}
|
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|
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assert TestGraph.initial.children[TestGraph.second].get_handler() == fake_handler
|
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assert (
|
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TestGraph.second.children[TestGraph.third].get_handler()
|
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== TestGraph.check_third
|
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)
|
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assert (
|
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TestGraph.third.children[TestGraph.fourth].get_handler().__name__
|
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== "check_fourth"
|
||||
)
|
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assert TestGraph.initial.handler == TestGraph.handle_initial
|
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assert TestGraph.initial.try_interval == 3600
|
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assert TestGraph.second.handler == TestGraph.handle_second
|
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assert TestGraph.second.try_interval == 1
|
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|
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|
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def test_bad_declarations():
|
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|
@ -62,5 +52,18 @@ def test_bad_declarations():
|
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loop = State()
|
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loop2 = State()
|
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|
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loop.add_transition(loop2, 1, handler="fake")
|
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loop2.add_transition(loop, 1, handler="fake")
|
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loop.transitions_to(loop2)
|
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loop2.transitions_to(loop)
|
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|
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|
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def test_state():
|
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"""
|
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Tests basic values of the State class
|
||||
"""
|
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|
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class TestGraph(StateGraph):
|
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initial = State()
|
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|
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assert "initial" == TestGraph.initial
|
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assert TestGraph.initial == "initial"
|
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assert TestGraph.initial == TestGraph.initial
|
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|
|
|
@ -1,4 +1,4 @@
|
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# Generated by Django 4.1.3 on 2022-11-07 04:19
|
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# Generated by Django 4.1.3 on 2022-11-10 05:58
|
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|
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import django.db.models.deletion
|
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from django.db import migrations, models
|
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|
|
|
@ -20,7 +20,7 @@ class UserEventAdmin(admin.ModelAdmin):
|
|||
|
||||
@admin.register(Identity)
|
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class IdentityAdmin(admin.ModelAdmin):
|
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list_display = ["id", "handle", "actor_uri", "name", "local"]
|
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list_display = ["id", "handle", "actor_uri", "state", "local"]
|
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|
||||
|
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@admin.register(Follow)
|
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|
|
|
@ -1,4 +1,4 @@
|
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# Generated by Django 4.1.3 on 2022-11-07 04:19
|
||||
# Generated by Django 4.1.3 on 2022-11-10 05:58
|
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|
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import functools
|
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|
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|
@ -6,7 +6,10 @@ import django.db.models.deletion
|
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from django.conf import settings
|
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from django.db import migrations, models
|
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|
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import stator.models
|
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import users.models.follow
|
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import users.models.identity
|
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import users.models.inbox_message
|
||||
|
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|
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class Migration(migrations.Migration):
|
||||
|
@ -77,6 +80,37 @@ class Migration(migrations.Migration):
|
|||
),
|
||||
],
|
||||
),
|
||||
migrations.CreateModel(
|
||||
name="InboxMessage",
|
||||
fields=[
|
||||
(
|
||||
"id",
|
||||
models.BigAutoField(
|
||||
auto_created=True,
|
||||
primary_key=True,
|
||||
serialize=False,
|
||||
verbose_name="ID",
|
||||
),
|
||||
),
|
||||
("state_ready", models.BooleanField(default=False)),
|
||||
("state_changed", models.DateTimeField(auto_now_add=True)),
|
||||
("state_attempted", models.DateTimeField(blank=True, null=True)),
|
||||
("state_locked_until", models.DateTimeField(blank=True, null=True)),
|
||||
("message", models.JSONField()),
|
||||
(
|
||||
"state",
|
||||
stator.models.StateField(
|
||||
choices=[("received", "received"), ("processed", "processed")],
|
||||
default="received",
|
||||
graph=users.models.inbox_message.InboxMessageStates,
|
||||
max_length=100,
|
||||
),
|
||||
),
|
||||
],
|
||||
options={
|
||||
"abstract": False,
|
||||
},
|
||||
),
|
||||
migrations.CreateModel(
|
||||
name="UserEvent",
|
||||
fields=[
|
||||
|
@ -124,7 +158,20 @@ class Migration(migrations.Migration):
|
|||
verbose_name="ID",
|
||||
),
|
||||
),
|
||||
("state_ready", models.BooleanField(default=False)),
|
||||
("state_changed", models.DateTimeField(auto_now_add=True)),
|
||||
("state_attempted", models.DateTimeField(blank=True, null=True)),
|
||||
("state_locked_until", models.DateTimeField(blank=True, null=True)),
|
||||
("actor_uri", models.CharField(max_length=500, unique=True)),
|
||||
(
|
||||
"state",
|
||||
stator.models.StateField(
|
||||
choices=[("outdated", "outdated"), ("updated", "updated")],
|
||||
default="outdated",
|
||||
graph=users.models.identity.IdentityStates,
|
||||
max_length=100,
|
||||
),
|
||||
),
|
||||
("local", models.BooleanField()),
|
||||
("username", models.CharField(blank=True, max_length=500, null=True)),
|
||||
("name", models.CharField(blank=True, max_length=500, null=True)),
|
||||
|
@ -239,10 +286,25 @@ class Migration(migrations.Migration):
|
|||
verbose_name="ID",
|
||||
),
|
||||
),
|
||||
("state_ready", models.BooleanField(default=False)),
|
||||
("state_changed", models.DateTimeField(auto_now_add=True)),
|
||||
("state_attempted", models.DateTimeField(blank=True, null=True)),
|
||||
("state_locked_until", models.DateTimeField(blank=True, null=True)),
|
||||
("uri", models.CharField(blank=True, max_length=500, null=True)),
|
||||
("note", models.TextField(blank=True, null=True)),
|
||||
("requested", models.BooleanField(default=False)),
|
||||
("accepted", models.BooleanField(default=False)),
|
||||
(
|
||||
"state",
|
||||
stator.models.StateField(
|
||||
choices=[
|
||||
("pending", "pending"),
|
||||
("requested", "requested"),
|
||||
("accepted", "accepted"),
|
||||
],
|
||||
default="pending",
|
||||
graph=users.models.follow.FollowStates,
|
||||
max_length=100,
|
||||
),
|
||||
),
|
||||
("created", models.DateTimeField(auto_now_add=True)),
|
||||
("updated", models.DateTimeField(auto_now=True)),
|
||||
(
|
||||
|
|
|
@ -1,44 +0,0 @@
|
|||
# Generated by Django 4.1.3 on 2022-11-07 19:22
|
||||
|
||||
import django.utils.timezone
|
||||
from django.db import migrations, models
|
||||
|
||||
import stator.models
|
||||
import users.models.follow
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
("users", "0001_initial"),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state",
|
||||
field=stator.models.StateField(
|
||||
choices=[
|
||||
("pending", "pending"),
|
||||
("requested", "requested"),
|
||||
("accepted", "accepted"),
|
||||
],
|
||||
default="pending",
|
||||
graph=users.models.follow.FollowStates,
|
||||
max_length=100,
|
||||
),
|
||||
),
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state_attempted",
|
||||
field=models.DateTimeField(blank=True, null=True),
|
||||
),
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state_changed",
|
||||
field=models.DateTimeField(
|
||||
auto_now_add=True, default=django.utils.timezone.now
|
||||
),
|
||||
preserve_default=False,
|
||||
),
|
||||
]
|
|
@ -1,31 +0,0 @@
|
|||
# Generated by Django 4.1.3 on 2022-11-08 03:58
|
||||
|
||||
from django.db import migrations, models
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
("users", "0002_follow_state_follow_state_attempted_and_more"),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.RemoveField(
|
||||
model_name="follow",
|
||||
name="accepted",
|
||||
),
|
||||
migrations.RemoveField(
|
||||
model_name="follow",
|
||||
name="requested",
|
||||
),
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state_locked",
|
||||
field=models.DateTimeField(blank=True, null=True),
|
||||
),
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state_runner",
|
||||
field=models.CharField(blank=True, max_length=100, null=True),
|
||||
),
|
||||
]
|
|
@ -1,21 +0,0 @@
|
|||
# Generated by Django 4.1.3 on 2022-11-09 05:15
|
||||
|
||||
from django.db import migrations
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
("users", "0003_remove_follow_accepted_remove_follow_requested_and_more"),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.RemoveField(
|
||||
model_name="follow",
|
||||
name="state_locked",
|
||||
),
|
||||
migrations.RemoveField(
|
||||
model_name="follow",
|
||||
name="state_runner",
|
||||
),
|
||||
]
|
|
@ -1,23 +0,0 @@
|
|||
# Generated by Django 4.1.3 on 2022-11-10 03:24
|
||||
|
||||
from django.db import migrations, models
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
("users", "0004_remove_follow_state_locked_and_more"),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state_locked_until",
|
||||
field=models.DateTimeField(blank=True, null=True),
|
||||
),
|
||||
migrations.AddField(
|
||||
model_name="follow",
|
||||
name="state_ready",
|
||||
field=models.BooleanField(default=False),
|
||||
),
|
||||
]
|
|
@ -2,5 +2,6 @@ from .block import Block # noqa
|
|||
from .domain import Domain # noqa
|
||||
from .follow import Follow, FollowStates # noqa
|
||||
from .identity import Identity, IdentityStates # noqa
|
||||
from .inbox_message import InboxMessage, InboxMessageStates # noqa
|
||||
from .user import User # noqa
|
||||
from .user_event import UserEvent # noqa
|
||||
|
|
|
@ -6,16 +6,20 @@ from stator.models import State, StateField, StateGraph, StatorModel
|
|||
|
||||
|
||||
class FollowStates(StateGraph):
|
||||
pending = State(try_interval=30)
|
||||
requested = State()
|
||||
unrequested = State(try_interval=30)
|
||||
requested = State(try_interval=24 * 60 * 60)
|
||||
accepted = State()
|
||||
|
||||
@pending.add_transition(requested)
|
||||
async def try_request(instance: "Follow"): # type:ignore
|
||||
print("Would have tried to follow on", instance)
|
||||
return False
|
||||
unrequested.transitions_to(requested)
|
||||
requested.transitions_to(accepted)
|
||||
|
||||
requested.add_manual_transition(accepted)
|
||||
@classmethod
|
||||
async def handle_unrequested(cls, instance: "Follow"):
|
||||
print("Would have tried to follow on", instance)
|
||||
|
||||
@classmethod
|
||||
async def handle_requested(cls, instance: "Follow"):
|
||||
print("Would have tried to requested on", instance)
|
||||
|
||||
|
||||
class Follow(StatorModel):
|
||||
|
@ -73,3 +77,17 @@ class Follow(StatorModel):
|
|||
follow.state = FollowStates.accepted
|
||||
follow.save()
|
||||
return follow
|
||||
|
||||
@classmethod
|
||||
def remote_created(cls, source, target, uri):
|
||||
follow = cls.maybe_get(source=source, target=target)
|
||||
if follow is None:
|
||||
follow = Follow.objects.create(source=source, target=target, uri=uri)
|
||||
if follow.state == FollowStates.fresh:
|
||||
follow.transition_perform(FollowStates.requested)
|
||||
|
||||
@classmethod
|
||||
def remote_accepted(cls, source, target):
|
||||
follow = cls.maybe_get(source=source, target=target)
|
||||
if follow and follow.state == FollowStates.requested:
|
||||
follow.transition_perform(FollowStates.accepted)
|
||||
|
|
|
@ -22,11 +22,16 @@ class IdentityStates(StateGraph):
|
|||
outdated = State(try_interval=3600)
|
||||
updated = State()
|
||||
|
||||
@outdated.add_transition(updated)
|
||||
async def fetch_identity(identity: "Identity"): # type:ignore
|
||||
outdated.transitions_to(updated)
|
||||
|
||||
@classmethod
|
||||
async def handle_outdated(cls, identity: "Identity"):
|
||||
# Local identities never need fetching
|
||||
if identity.local:
|
||||
return True
|
||||
return await identity.fetch_actor()
|
||||
return "updated"
|
||||
# Run the actor fetch and progress to updated if it succeeds
|
||||
if await identity.fetch_actor():
|
||||
return "updated"
|
||||
|
||||
|
||||
def upload_namer(prefix, instance, filename):
|
||||
|
|
71
users/models/inbox_message.py
Normal file
71
users/models/inbox_message.py
Normal file
|
@ -0,0 +1,71 @@
|
|||
from asgiref.sync import sync_to_async
|
||||
from django.db import models
|
||||
|
||||
from stator.models import State, StateField, StateGraph, StatorModel
|
||||
from users.models import Follow, Identity
|
||||
|
||||
|
||||
class InboxMessageStates(StateGraph):
|
||||
received = State(try_interval=300)
|
||||
processed = State()
|
||||
|
||||
received.transitions_to(processed)
|
||||
|
||||
@classmethod
|
||||
async def handle_received(cls, instance: "InboxMessage"):
|
||||
type = instance.message["type"].lower()
|
||||
if type == "follow":
|
||||
await instance.follow_request()
|
||||
elif type == "accept":
|
||||
inner_type = instance.message["object"]["type"].lower()
|
||||
if inner_type == "follow":
|
||||
await instance.follow_accepted()
|
||||
else:
|
||||
raise ValueError(f"Cannot handle activity of type accept.{inner_type}")
|
||||
elif type == "undo":
|
||||
inner_type = instance.message["object"]["type"].lower()
|
||||
if inner_type == "follow":
|
||||
await instance.follow_undo()
|
||||
else:
|
||||
raise ValueError(f"Cannot handle activity of type undo.{inner_type}")
|
||||
else:
|
||||
raise ValueError(f"Cannot handle activity of type {type}")
|
||||
|
||||
|
||||
class InboxMessage(StatorModel):
|
||||
"""
|
||||
an incoming inbox message that needs processing.
|
||||
|
||||
Yes, this is kind of its own message queue built on the state graph system.
|
||||
It's fine. It'll scale up to a decent point.
|
||||
"""
|
||||
|
||||
message = models.JSONField()
|
||||
|
||||
state = StateField(InboxMessageStates)
|
||||
|
||||
@sync_to_async
|
||||
def follow_request(self):
|
||||
"""
|
||||
Handles an incoming follow request
|
||||
"""
|
||||
Follow.remote_created(
|
||||
source=Identity.by_actor_uri_with_create(self.message["actor"]),
|
||||
target=Identity.by_actor_uri(self.message["object"]),
|
||||
uri=self.message["id"],
|
||||
)
|
||||
|
||||
@sync_to_async
|
||||
def follow_accepted(self):
|
||||
"""
|
||||
Handles an incoming acceptance of one of our follow requests
|
||||
"""
|
||||
Follow.remote_accepted(
|
||||
source=Identity.by_actor_uri_with_create(self.message["actor"]),
|
||||
target=Identity.by_actor_uri(self.message["object"]),
|
||||
)
|
||||
|
||||
async def follow_undo(self):
|
||||
"""
|
||||
Handles an incoming follow undo
|
||||
"""
|
|
@ -19,10 +19,7 @@ def by_handle_or_404(request, handle, local=True, fetch=False) -> Identity:
|
|||
else:
|
||||
username, domain = handle.split("@", 1)
|
||||
# Resolve the domain to the display domain
|
||||
domain_instance = Domain.get_domain(domain)
|
||||
if domain_instance is None:
|
||||
raise Http404("No matching domains found")
|
||||
domain = domain_instance.domain
|
||||
domain = Domain.get_remote_domain(domain).domain
|
||||
identity = Identity.by_username_and_domain(
|
||||
username,
|
||||
domain,
|
||||
|
|
|
@ -1,11 +0,0 @@
|
|||
from asgiref.sync import sync_to_async
|
||||
|
||||
from users.models import Identity
|
||||
|
||||
|
||||
async def handle_identity_fetch(task_handler):
|
||||
# Get the actor URI via webfinger
|
||||
actor_uri, handle = await Identity.fetch_webfinger(task_handler.subject)
|
||||
# Get or create the identity, then fetch
|
||||
identity = await sync_to_async(Identity.by_actor_uri_with_create)(actor_uri)
|
||||
await identity.fetch_actor()
|
|
@ -1,56 +0,0 @@
|
|||
from asgiref.sync import sync_to_async
|
||||
|
||||
from users.models import Follow, Identity
|
||||
|
||||
|
||||
async def handle_inbox_item(task_handler):
|
||||
type = task_handler.payload["type"].lower()
|
||||
if type == "follow":
|
||||
await inbox_follow(task_handler.payload)
|
||||
elif type == "accept":
|
||||
inner_type = task_handler.payload["object"]["type"].lower()
|
||||
if inner_type == "follow":
|
||||
await sync_to_async(accept_follow)(task_handler.payload["object"])
|
||||
else:
|
||||
raise ValueError(f"Cannot handle activity of type accept.{inner_type}")
|
||||
elif type == "undo":
|
||||
inner_type = task_handler.payload["object"]["type"].lower()
|
||||
if inner_type == "follow":
|
||||
await inbox_unfollow(task_handler.payload["object"])
|
||||
else:
|
||||
raise ValueError(f"Cannot handle activity of type undo.{inner_type}")
|
||||
else:
|
||||
raise ValueError(f"Cannot handle activity of type {inner_type}")
|
||||
|
||||
|
||||
async def inbox_follow(payload):
|
||||
"""
|
||||
Handles an incoming follow request
|
||||
"""
|
||||
# TODO: Manually approved follows
|
||||
source = Identity.by_actor_uri_with_create(payload["actor"])
|
||||
target = Identity.by_actor_uri(payload["object"])
|
||||
# See if this follow already exists
|
||||
try:
|
||||
follow = Follow.objects.get(source=source, target=target)
|
||||
except Follow.DoesNotExist:
|
||||
follow = Follow.objects.create(source=source, target=target, uri=payload["id"])
|
||||
# See if we need to acknowledge it
|
||||
if not follow.acknowledged:
|
||||
pass
|
||||
|
||||
|
||||
async def inbox_unfollow(payload):
|
||||
pass
|
||||
|
||||
|
||||
def accept_follow(payload):
|
||||
"""
|
||||
Another server has acknowledged our follow request
|
||||
"""
|
||||
source = Identity.by_actor_uri_with_create(payload["actor"])
|
||||
target = Identity.by_actor_uri(payload["object"])
|
||||
follow = Follow.maybe_get(source, target)
|
||||
if follow:
|
||||
follow.accepted = True
|
||||
follow.save()
|
|
@ -17,7 +17,7 @@ from core.forms import FormHelper
|
|||
from core.ld import canonicalise
|
||||
from core.signatures import HttpSignature
|
||||
from users.decorators import identity_required
|
||||
from users.models import Domain, Follow, Identity, IdentityStates
|
||||
from users.models import Domain, Follow, Identity, IdentityStates, InboxMessage
|
||||
from users.shortcuts import by_handle_or_404
|
||||
|
||||
|
||||
|
@ -117,9 +117,13 @@ class CreateIdentity(FormView):
|
|||
|
||||
def clean(self):
|
||||
# Check for existing users
|
||||
username = self.cleaned_data["username"]
|
||||
domain = self.cleaned_data["domain"]
|
||||
if Identity.objects.filter(username=username, domain=domain).exists():
|
||||
username = self.cleaned_data.get("username")
|
||||
domain = self.cleaned_data.get("domain")
|
||||
if (
|
||||
username
|
||||
and domain
|
||||
and Identity.objects.filter(username=username, domain=domain).exists()
|
||||
):
|
||||
raise forms.ValidationError(f"{username}@{domain} is already taken")
|
||||
|
||||
def get_form(self):
|
||||
|
@ -219,7 +223,7 @@ class Inbox(View):
|
|||
):
|
||||
return HttpResponseBadRequest("Bad signature")
|
||||
# Hand off the item to be processed by the queue
|
||||
Task.submit("inbox_item", subject=identity.actor_uri, payload=document)
|
||||
InboxMessage.objects.create(message=document)
|
||||
return HttpResponse(status=202)
|
||||
|
||||
|
||||
|
|
Loading…
Reference in a new issue