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from __future__ import annotations
import uuid
from datetime import datetime, timezone
from enum import StrEnum
from flask_login import UserMixin
from sqlalchemy import (
Boolean,
DateTime,
Enum,
ForeignKey,
Integer,
String,
Text,
UniqueConstraint,
Uuid,
)
from sqlalchemy.orm import Mapped, mapped_column, relationship
from werkzeug.security import check_password_hash, generate_password_hash
from . import Base
class SentWebmentionStatus(StrEnum):
SENT = "sent"
UNSUPPORTED = "unsupported"
FAILED = "failed"
class User(UserMixin, Base):
__tablename__ = "users"
id: Mapped[int] = mapped_column(primary_key=True)
username: Mapped[str] = mapped_column(Text(), index=True, unique=True)
password_hash: Mapped[str] = mapped_column(Text(), nullable=False)
def __repr__(self) -> str:
return f"<User {self.username}>"
def set_password(self, password: str) -> None:
self.password_hash = generate_password_hash(password)
def check_password(self, password: str) -> bool:
return check_password_hash(self.password_hash, password)
class ReceivedWebmention(Base):
__tablename__ = "received_webmentions"
uuid: Mapped[uuid.UUID] = mapped_column(Uuid(as_uuid=True), primary_key=True)
source: Mapped[str] = mapped_column(Text(), nullable=False)
target: Mapped[str] = mapped_column(Text(), nullable=False)
status: Mapped[str] = mapped_column(Text(), nullable=False, default="received")
failure_reason: Mapped[str | None] = mapped_column(
Text(), nullable=True, default=None
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
default=lambda: datetime.now(timezone.utc),
onupdate=lambda: datetime.now(timezone.utc),
nullable=False,
)
__table_args__ = (
UniqueConstraint("source", "target", name="uq_webmention_source_target"),
)
@property
def verified(self) -> bool:
return self.status == "verified"
@property
def created_at(self) -> datetime:
return uuid7_to_datetime(self.uuid)
class Source(Base):
__tablename__ = "sources"
uuid: Mapped[uuid.UUID] = mapped_column(
Uuid(as_uuid=True), primary_key=True, default=uuid.uuid7
)
path: Mapped[str] = mapped_column(Text(), nullable=False, unique=True)
url: Mapped[str] = mapped_column(Text(), nullable=False, unique=True)
content_hash: Mapped[str] = mapped_column(String(32), nullable=False)
revision: Mapped[int] = mapped_column(Integer(), nullable=False, default=1)
last_seen_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False
)
revised_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False
)
deleted_at: Mapped[datetime | None] = mapped_column(
DateTime(timezone=True), nullable=True, default=None
)
sent_webmentions: Mapped[list[SentWebmention]] = relationship(
back_populates="source", cascade="all, delete-orphan", lazy="selectin"
)
@property
def created_at(self) -> datetime:
return uuid7_to_datetime(self.uuid)
class SentWebmention(Base):
__tablename__ = "sent_webmentions"
uuid: Mapped[uuid.UUID] = mapped_column(
Uuid(as_uuid=True), primary_key=True, default=uuid.uuid7
)
source_id: Mapped[uuid.UUID] = mapped_column(
Uuid(as_uuid=True),
ForeignKey("sources.uuid", ondelete="CASCADE"),
nullable=False,
index=True,
)
target: Mapped[str] = mapped_column(Text(), nullable=False)
active: Mapped[bool] = mapped_column(Boolean(), nullable=False, default=True)
desired_revision: Mapped[int] = mapped_column(Integer(), nullable=False)
processed_revision: Mapped[int | None] = mapped_column(
Integer(), nullable=True, default=None
)
sent_revision: Mapped[int | None] = mapped_column(
Integer(), nullable=True, default=None
)
status: Mapped[SentWebmentionStatus | None] = mapped_column(
Enum(
SentWebmentionStatus,
name="sent_webmention_status",
values_callable=lambda enum_type: [member.value for member in enum_type],
native_enum=False,
),
nullable=True,
default=None,
)
failure_reason: Mapped[str | None] = mapped_column(
Text(), nullable=True, default=None
)
endpoint: Mapped[str | None] = mapped_column(Text(), nullable=True, default=None)
response_status: Mapped[int | None] = mapped_column(
Integer(), nullable=True, default=None
)
status_url: Mapped[str | None] = mapped_column(Text(), nullable=True, default=None)
last_attempted_at: Mapped[datetime | None] = mapped_column(
DateTime(timezone=True), nullable=True, default=None
)
last_sent_at: Mapped[datetime | None] = mapped_column(
DateTime(timezone=True), nullable=True, default=None
)
source: Mapped[Source] = relationship(back_populates="sent_webmentions")
__table_args__ = (
UniqueConstraint(
"source_id", "target", name="uq_sent_webmention_source_target"
),
)
@property
def pending(self) -> bool:
return (
self.processed_revision is None
or self.processed_revision < self.desired_revision
)
@property
def created_at(self) -> datetime:
return uuid7_to_datetime(self.uuid)
def uuid7_to_datetime(identifier: uuid.UUID) -> datetime:
return datetime.fromtimestamp(identifier.time / 1000, tz=timezone.utc)
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