Fusion
57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
"""Credential models and storage interface.
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Security rules:
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- No plaintext ``private_key`` or ``token`` fields exist on any model class.
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- The ``encrypted_payload`` field is opaque bytes encoded as a string.
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"""
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import abc
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import uuid
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from datetime import datetime, timezone
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from pydantic import BaseModel, ConfigDict, Field
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from app.git.types import CredentialKind
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class GitCredential(BaseModel):
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"""Base credential model.
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Never stores plaintext secrets. The ``encrypted_payload`` field holds
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opaque encrypted data.
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"""
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model_config = ConfigDict(extra="forbid")
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id: uuid.UUID = Field(default_factory=uuid.uuid4)
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kind: CredentialKind
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encrypted_payload: str = Field(repr=False)
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created_at: datetime = Field(
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default_factory=lambda: datetime.now(timezone.utc)
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)
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updated_at: datetime = Field(
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default_factory=lambda: datetime.now(timezone.utc)
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)
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class AccessTokenCredential(GitCredential):
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"""Access-token credential discriminated by ``kind``."""
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kind: CredentialKind = CredentialKind.access_token
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class CredentialStorage(abc.ABC):
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"""Abstract storage backend for :class:`GitCredential` records."""
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@abc.abstractmethod
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def create(self, credential: GitCredential) -> uuid.UUID:
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"""Persist *credential* and return its ID."""
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@abc.abstractmethod
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def get(self, credential_id: uuid.UUID) -> GitCredential | None:
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"""Retrieve a credential by ID, or ``None`` if not found."""
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@abc.abstractmethod
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def delete(self, credential_id: uuid.UUID) -> None:
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"""Remove a credential by ID."""
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