Files
orchard/backend/app/models.py
Mondo Diaz e0562195df Add robust PyPI dependency caching with task queue
Replace unbounded thread spawning with managed worker pool:
- New pypi_cache_tasks table tracks caching jobs
- Thread pool with 5 workers (configurable via ORCHARD_PYPI_CACHE_WORKERS)
- Automatic retries with exponential backoff (30s, 60s, then fail)
- Deduplication to prevent duplicate caching attempts

New API endpoints for visibility and control:
- GET /pypi/cache/status - queue health summary
- GET /pypi/cache/failed - list failed tasks with errors
- POST /pypi/cache/retry/{package} - retry single package
- POST /pypi/cache/retry-all - retry all failed packages

This fixes silent failures in background dependency caching where
packages would fail to cache without any tracking or retry mechanism.
2026-02-05 09:15:08 -06:00

873 lines
31 KiB
Python

from datetime import datetime
from sqlalchemy import (
Column,
String,
Text,
Boolean,
Integer,
BigInteger,
DateTime,
ForeignKey,
CheckConstraint,
Index,
JSON,
ARRAY,
LargeBinary,
)
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import relationship, declarative_base
import uuid
Base = declarative_base()
class Project(Base):
__tablename__ = "projects"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
name = Column(String(255), unique=True, nullable=False)
description = Column(Text)
is_public = Column(Boolean, default=True)
is_system = Column(Boolean, default=False, nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
created_by = Column(String(255), nullable=False)
team_id = Column(UUID(as_uuid=True), ForeignKey("teams.id", ondelete="SET NULL"))
packages = relationship(
"Package", back_populates="project", cascade="all, delete-orphan"
)
permissions = relationship(
"AccessPermission", back_populates="project", cascade="all, delete-orphan"
)
team = relationship("Team", back_populates="projects")
__table_args__ = (
Index("idx_projects_name", "name"),
Index("idx_projects_created_by", "created_by"),
Index("idx_projects_team_id", "team_id"),
Index("idx_projects_is_system", "is_system"),
)
class Package(Base):
__tablename__ = "packages"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
project_id = Column(
UUID(as_uuid=True),
ForeignKey("projects.id", ondelete="CASCADE"),
nullable=False,
)
name = Column(String(255), nullable=False)
description = Column(Text)
format = Column(String(50), default="generic", nullable=False)
platform = Column(String(50), default="any", nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
project = relationship("Project", back_populates="packages")
tags = relationship("Tag", back_populates="package", cascade="all, delete-orphan")
uploads = relationship(
"Upload", back_populates="package", cascade="all, delete-orphan"
)
consumers = relationship(
"Consumer", back_populates="package", cascade="all, delete-orphan"
)
versions = relationship(
"PackageVersion", back_populates="package", cascade="all, delete-orphan"
)
__table_args__ = (
Index("idx_packages_project_id", "project_id"),
Index("idx_packages_name", "name"),
Index("idx_packages_format", "format"),
Index("idx_packages_platform", "platform"),
Index(
"idx_packages_project_name", "project_id", "name", unique=True
), # Composite unique index
CheckConstraint(
"format IN ('generic', 'npm', 'pypi', 'docker', 'deb', 'rpm', 'maven', 'nuget', 'helm')",
name="check_package_format",
),
CheckConstraint(
"platform IN ('any', 'linux', 'darwin', 'windows', 'linux-amd64', 'linux-arm64', 'darwin-amd64', 'darwin-arm64', 'windows-amd64')",
name="check_package_platform",
),
{"extend_existing": True},
)
class Artifact(Base):
__tablename__ = "artifacts"
id = Column(String(64), primary_key=True) # SHA256 hash
size = Column(BigInteger, nullable=False)
content_type = Column(String(255))
original_name = Column(String(1024))
checksum_md5 = Column(String(32)) # MD5 hash for additional verification
checksum_sha1 = Column(String(40)) # SHA1 hash for compatibility
s3_etag = Column(String(64)) # S3 ETag for verification
artifact_metadata = Column(
"metadata", JSON, default=dict
) # Format-specific metadata (column name is 'metadata')
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
created_by = Column(String(255), nullable=False)
ref_count = Column(Integer, default=1)
s3_key = Column(String(1024), nullable=False)
tags = relationship("Tag", back_populates="artifact")
uploads = relationship("Upload", back_populates="artifact")
versions = relationship("PackageVersion", back_populates="artifact")
dependencies = relationship(
"ArtifactDependency", back_populates="artifact", cascade="all, delete-orphan"
)
@property
def sha256(self) -> str:
"""Alias for id - the SHA256 hash of the artifact content"""
return self.id
@property
def format_metadata(self):
"""Alias for artifact_metadata - backward compatibility"""
return self.artifact_metadata
@format_metadata.setter
def format_metadata(self, value):
"""Alias setter for artifact_metadata - backward compatibility"""
self.artifact_metadata = value
__table_args__ = (
Index("idx_artifacts_created_at", "created_at"),
Index("idx_artifacts_created_by", "created_by"),
Index("idx_artifacts_ref_count", "ref_count"), # For cleanup queries
CheckConstraint("ref_count >= 0", name="check_ref_count_non_negative"),
CheckConstraint("size > 0", name="check_size_positive"),
)
class Tag(Base):
__tablename__ = "tags"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
package_id = Column(
UUID(as_uuid=True),
ForeignKey("packages.id", ondelete="CASCADE"),
nullable=False,
)
name = Column(String(255), nullable=False)
artifact_id = Column(String(64), ForeignKey("artifacts.id"), nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
created_by = Column(String(255), nullable=False)
package = relationship("Package", back_populates="tags")
artifact = relationship("Artifact", back_populates="tags")
history = relationship(
"TagHistory", back_populates="tag", cascade="all, delete-orphan"
)
__table_args__ = (
Index("idx_tags_package_id", "package_id"),
Index("idx_tags_artifact_id", "artifact_id"),
Index(
"idx_tags_package_name", "package_id", "name", unique=True
), # Composite unique index
Index(
"idx_tags_package_created_at", "package_id", "created_at"
), # For recent tags queries
)
class TagHistory(Base):
__tablename__ = "tag_history"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
tag_id = Column(
UUID(as_uuid=True), ForeignKey("tags.id", ondelete="CASCADE"), nullable=False
)
old_artifact_id = Column(String(64), ForeignKey("artifacts.id"))
new_artifact_id = Column(String(64), ForeignKey("artifacts.id"), nullable=False)
change_type = Column(String(20), nullable=False, default="update")
changed_at = Column(DateTime(timezone=True), default=datetime.utcnow)
changed_by = Column(String(255), nullable=False)
tag = relationship("Tag", back_populates="history")
__table_args__ = (
Index("idx_tag_history_tag_id", "tag_id"),
Index("idx_tag_history_changed_at", "changed_at"),
CheckConstraint(
"change_type IN ('create', 'update', 'delete')", name="check_change_type"
),
)
class PackageVersion(Base):
"""Immutable version record for a package-artifact relationship.
Separates versions (immutable, set at upload) from tags (mutable labels).
Each artifact in a package can have at most one version.
"""
__tablename__ = "package_versions"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
package_id = Column(
UUID(as_uuid=True),
ForeignKey("packages.id", ondelete="CASCADE"),
nullable=False,
)
artifact_id = Column(String(64), ForeignKey("artifacts.id"), nullable=False)
version = Column(String(255), nullable=False)
version_source = Column(String(50)) # 'explicit', 'filename', 'metadata', 'migrated_from_tag'
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
created_by = Column(String(255), nullable=False)
package = relationship("Package", back_populates="versions")
artifact = relationship("Artifact", back_populates="versions")
__table_args__ = (
Index("idx_package_versions_package_id", "package_id"),
Index("idx_package_versions_artifact_id", "artifact_id"),
Index("idx_package_versions_package_version", "package_id", "version", unique=True),
Index("idx_package_versions_package_artifact", "package_id", "artifact_id", unique=True),
)
class Upload(Base):
__tablename__ = "uploads"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
artifact_id = Column(String(64), ForeignKey("artifacts.id"), nullable=False)
package_id = Column(UUID(as_uuid=True), ForeignKey("packages.id"), nullable=False)
original_name = Column(String(1024))
tag_name = Column(String(255)) # Tag assigned during upload
user_agent = Column(String(512)) # Client identification
duration_ms = Column(Integer) # Upload timing in milliseconds
deduplicated = Column(Boolean, default=False) # Whether artifact was deduplicated
checksum_verified = Column(Boolean, default=True) # Whether checksum was verified
status = Column(
String(20), default="completed", nullable=False
) # pending, completed, failed
error_message = Column(Text) # Error details for failed uploads
client_checksum = Column(String(64)) # Client-provided SHA256 for verification
uploaded_at = Column(DateTime(timezone=True), default=datetime.utcnow)
uploaded_by = Column(String(255), nullable=False)
source_ip = Column(String(45))
artifact = relationship("Artifact", back_populates="uploads")
package = relationship("Package", back_populates="uploads")
__table_args__ = (
Index("idx_uploads_artifact_id", "artifact_id"),
Index("idx_uploads_package_id", "package_id"),
Index("idx_uploads_uploaded_at", "uploaded_at"),
Index("idx_uploads_package_uploaded_at", "package_id", "uploaded_at"),
Index("idx_uploads_uploaded_by_at", "uploaded_by", "uploaded_at"),
Index("idx_uploads_status", "status"),
Index("idx_uploads_status_uploaded_at", "status", "uploaded_at"),
CheckConstraint(
"status IN ('pending', 'completed', 'failed')", name="check_upload_status"
),
)
class UploadLock(Base):
"""Track in-progress uploads for conflict detection (409 responses)."""
__tablename__ = "upload_locks"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
sha256_hash = Column(String(64), nullable=False)
package_id = Column(
UUID(as_uuid=True),
ForeignKey("packages.id", ondelete="CASCADE"),
nullable=False,
)
locked_at = Column(DateTime(timezone=True), default=datetime.utcnow)
locked_by = Column(String(255), nullable=False)
expires_at = Column(DateTime(timezone=True), nullable=False)
__table_args__ = (
Index("idx_upload_locks_expires_at", "expires_at"),
Index(
"idx_upload_locks_hash_package", "sha256_hash", "package_id", unique=True
),
)
class Consumer(Base):
__tablename__ = "consumers"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
package_id = Column(
UUID(as_uuid=True),
ForeignKey("packages.id", ondelete="CASCADE"),
nullable=False,
)
project_url = Column(String(2048), nullable=False)
last_access = Column(DateTime(timezone=True), default=datetime.utcnow)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
package = relationship("Package", back_populates="consumers")
__table_args__ = (
Index("idx_consumers_package_id", "package_id"),
Index("idx_consumers_last_access", "last_access"),
)
class AccessPermission(Base):
__tablename__ = "access_permissions"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
project_id = Column(
UUID(as_uuid=True),
ForeignKey("projects.id", ondelete="CASCADE"),
nullable=False,
)
user_id = Column(String(255), nullable=False)
level = Column(String(20), nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
expires_at = Column(DateTime(timezone=True))
project = relationship("Project", back_populates="permissions")
__table_args__ = (
CheckConstraint("level IN ('read', 'write', 'admin')", name="check_level"),
Index("idx_access_permissions_project_id", "project_id"),
Index("idx_access_permissions_user_id", "user_id"),
)
class User(Base):
"""User account for authentication."""
__tablename__ = "users"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
username = Column(String(255), unique=True, nullable=False)
password_hash = Column(String(255)) # NULL if OIDC-only user
email = Column(String(255))
is_admin = Column(Boolean, default=False)
is_active = Column(Boolean, default=True)
must_change_password = Column(Boolean, default=False)
oidc_subject = Column(String(255)) # OIDC subject claim
oidc_issuer = Column(String(512)) # OIDC issuer URL
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
last_login = Column(DateTime(timezone=True))
# Relationships
api_keys = relationship(
"APIKey", back_populates="owner", cascade="all, delete-orphan"
)
sessions = relationship(
"Session", back_populates="user", cascade="all, delete-orphan"
)
team_memberships = relationship(
"TeamMembership", back_populates="user", cascade="all, delete-orphan"
)
__table_args__ = (
Index("idx_users_username", "username"),
Index("idx_users_email", "email"),
Index("idx_users_oidc_subject", "oidc_subject"),
)
class Session(Base):
"""User session for web login."""
__tablename__ = "sessions"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
user_id = Column(
UUID(as_uuid=True),
ForeignKey("users.id", ondelete="CASCADE"),
nullable=False,
)
token_hash = Column(String(64), unique=True, nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
expires_at = Column(DateTime(timezone=True), nullable=False)
last_accessed = Column(DateTime(timezone=True), default=datetime.utcnow)
user_agent = Column(String(512))
ip_address = Column(String(45))
user = relationship("User", back_populates="sessions")
__table_args__ = (
Index("idx_sessions_user_id", "user_id"),
Index("idx_sessions_token_hash", "token_hash"),
Index("idx_sessions_expires_at", "expires_at"),
)
class AuthSettings(Base):
"""Authentication settings for OIDC configuration."""
__tablename__ = "auth_settings"
key = Column(String(255), primary_key=True)
value = Column(Text, nullable=False)
updated_at = Column(DateTime(timezone=True), default=datetime.utcnow)
class APIKey(Base):
__tablename__ = "api_keys"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
key_hash = Column(String(64), unique=True, nullable=False)
name = Column(String(255), nullable=False)
user_id = Column(
String(255), nullable=False
) # Legacy field, kept for compatibility
owner_id = Column(
UUID(as_uuid=True),
ForeignKey("users.id", ondelete="CASCADE"),
nullable=True, # Nullable for migration compatibility
)
description = Column(Text)
scopes = Column(ARRAY(String), default=["read", "write"])
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
expires_at = Column(DateTime(timezone=True))
last_used = Column(DateTime(timezone=True))
owner = relationship("User", back_populates="api_keys")
__table_args__ = (
Index("idx_api_keys_user_id", "user_id"),
Index("idx_api_keys_key_hash", "key_hash"),
Index("idx_api_keys_owner_id", "owner_id"),
)
class AuditLog(Base):
__tablename__ = "audit_logs"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
action = Column(String(100), nullable=False)
resource = Column(String(1024), nullable=False)
user_id = Column(String(255), nullable=False)
details = Column(JSON)
timestamp = Column(DateTime(timezone=True), default=datetime.utcnow)
source_ip = Column(String(45))
__table_args__ = (
Index("idx_audit_logs_action", "action"),
Index("idx_audit_logs_resource", "resource"),
Index("idx_audit_logs_user_id", "user_id"),
Index("idx_audit_logs_timestamp", "timestamp"),
Index("idx_audit_logs_resource_timestamp", "resource", "timestamp"),
Index("idx_audit_logs_user_timestamp", "user_id", "timestamp"),
)
class ProjectHistory(Base):
"""Track changes to project metadata over time."""
__tablename__ = "project_history"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
project_id = Column(
UUID(as_uuid=True),
ForeignKey("projects.id", ondelete="CASCADE"),
nullable=False,
)
field_name = Column(String(100), nullable=False)
old_value = Column(Text)
new_value = Column(Text)
changed_at = Column(DateTime(timezone=True), default=datetime.utcnow)
changed_by = Column(String(255), nullable=False)
__table_args__ = (
Index("idx_project_history_project_id", "project_id"),
Index("idx_project_history_changed_at", "changed_at"),
Index("idx_project_history_project_changed_at", "project_id", "changed_at"),
)
class PackageHistory(Base):
"""Track changes to package metadata over time."""
__tablename__ = "package_history"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
package_id = Column(
UUID(as_uuid=True),
ForeignKey("packages.id", ondelete="CASCADE"),
nullable=False,
)
field_name = Column(String(100), nullable=False)
old_value = Column(Text)
new_value = Column(Text)
changed_at = Column(DateTime(timezone=True), default=datetime.utcnow)
changed_by = Column(String(255), nullable=False)
__table_args__ = (
Index("idx_package_history_package_id", "package_id"),
Index("idx_package_history_changed_at", "changed_at"),
Index("idx_package_history_package_changed_at", "package_id", "changed_at"),
)
class ArtifactDependency(Base):
"""Dependency declared by an artifact on another package.
Each artifact can declare dependencies on other packages, specifying either
an exact version or a tag. This enables recursive dependency resolution.
"""
__tablename__ = "artifact_dependencies"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
artifact_id = Column(
String(64),
ForeignKey("artifacts.id", ondelete="CASCADE"),
nullable=False,
)
dependency_project = Column(String(255), nullable=False)
dependency_package = Column(String(255), nullable=False)
version_constraint = Column(String(255), nullable=True)
tag_constraint = Column(String(255), nullable=True)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
# Relationship to the artifact that declares this dependency
artifact = relationship("Artifact", back_populates="dependencies")
__table_args__ = (
# Exactly one of version_constraint or tag_constraint must be set
CheckConstraint(
"(version_constraint IS NOT NULL AND tag_constraint IS NULL) OR "
"(version_constraint IS NULL AND tag_constraint IS NOT NULL)",
name="check_constraint_type",
),
# Each artifact can only depend on a specific project/package once
Index(
"idx_artifact_dependencies_artifact_id",
"artifact_id",
),
Index(
"idx_artifact_dependencies_target",
"dependency_project",
"dependency_package",
),
Index(
"idx_artifact_dependencies_unique",
"artifact_id",
"dependency_project",
"dependency_package",
unique=True,
),
)
class Team(Base):
"""Team for organizing projects and users."""
__tablename__ = "teams"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
name = Column(String(255), nullable=False)
slug = Column(String(255), unique=True, nullable=False)
description = Column(Text)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
created_by = Column(String(255), nullable=False)
settings = Column(JSON, default=dict)
# Relationships
memberships = relationship(
"TeamMembership", back_populates="team", cascade="all, delete-orphan"
)
projects = relationship("Project", back_populates="team")
__table_args__ = (
Index("idx_teams_slug", "slug"),
Index("idx_teams_created_by", "created_by"),
Index("idx_teams_created_at", "created_at"),
CheckConstraint(
"slug ~ '^[a-z0-9][a-z0-9-]*[a-z0-9]$' OR slug ~ '^[a-z0-9]$'",
name="check_team_slug_format",
),
)
class TeamMembership(Base):
"""Maps users to teams with their roles."""
__tablename__ = "team_memberships"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
team_id = Column(
UUID(as_uuid=True),
ForeignKey("teams.id", ondelete="CASCADE"),
nullable=False,
)
user_id = Column(
UUID(as_uuid=True),
ForeignKey("users.id", ondelete="CASCADE"),
nullable=False,
)
role = Column(String(20), nullable=False, default="member")
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
invited_by = Column(String(255))
# Relationships
team = relationship("Team", back_populates="memberships")
user = relationship("User", back_populates="team_memberships")
__table_args__ = (
Index("idx_team_memberships_team_id", "team_id"),
Index("idx_team_memberships_user_id", "user_id"),
Index("idx_team_memberships_role", "role"),
Index("idx_team_memberships_team_role", "team_id", "role"),
Index("idx_team_memberships_unique", "team_id", "user_id", unique=True),
CheckConstraint(
"role IN ('owner', 'admin', 'member')",
name="check_team_role",
),
)
# =============================================================================
# Upstream Caching Models
# =============================================================================
# Valid source types for upstream registries
SOURCE_TYPES = ["npm", "pypi", "maven", "docker", "helm", "nuget", "deb", "rpm", "generic"]
# Valid authentication types
AUTH_TYPES = ["none", "basic", "bearer", "api_key"]
class UpstreamSource(Base):
"""Configuration for an upstream artifact registry.
Stores connection details and authentication for upstream registries
like npm, PyPI, Maven Central, or private Artifactory instances.
"""
__tablename__ = "upstream_sources"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
name = Column(String(255), unique=True, nullable=False)
source_type = Column(String(50), default="generic", nullable=False)
url = Column(String(2048), nullable=False)
enabled = Column(Boolean, default=False, nullable=False)
auth_type = Column(String(20), default="none", nullable=False)
username = Column(String(255))
password_encrypted = Column(LargeBinary)
headers_encrypted = Column(LargeBinary)
priority = Column(Integer, default=100, nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
# Relationships
cached_urls = relationship("CachedUrl", back_populates="source")
__table_args__ = (
Index("idx_upstream_sources_enabled", "enabled"),
Index("idx_upstream_sources_source_type", "source_type"),
Index("idx_upstream_sources_priority", "priority"),
CheckConstraint(
"source_type IN ('npm', 'pypi', 'maven', 'docker', 'helm', 'nuget', 'deb', 'rpm', 'generic')",
name="check_source_type",
),
CheckConstraint(
"auth_type IN ('none', 'basic', 'bearer', 'api_key')",
name="check_auth_type",
),
CheckConstraint("priority > 0", name="check_priority_positive"),
)
def set_password(self, password: str) -> None:
"""Encrypt and store a password/token."""
from .encryption import encrypt_value
if password:
self.password_encrypted = encrypt_value(password)
else:
self.password_encrypted = None
def get_password(self) -> str | None:
"""Decrypt and return the stored password/token."""
from .encryption import decrypt_value
if self.password_encrypted:
try:
return decrypt_value(self.password_encrypted)
except Exception:
return None
return None
def has_password(self) -> bool:
"""Check if a password/token is stored."""
return self.password_encrypted is not None
def set_headers(self, headers: dict) -> None:
"""Encrypt and store custom headers as JSON."""
from .encryption import encrypt_value
import json
if headers:
self.headers_encrypted = encrypt_value(json.dumps(headers))
else:
self.headers_encrypted = None
def get_headers(self) -> dict | None:
"""Decrypt and return custom headers."""
from .encryption import decrypt_value
import json
if self.headers_encrypted:
try:
return json.loads(decrypt_value(self.headers_encrypted))
except Exception:
return None
return None
class CacheSettings(Base):
"""Global cache settings (singleton table).
Controls behavior of the upstream caching system.
"""
__tablename__ = "cache_settings"
id = Column(Integer, primary_key=True, default=1)
auto_create_system_projects = Column(Boolean, default=True, nullable=False)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
updated_at = Column(
DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
)
__table_args__ = (
CheckConstraint("id = 1", name="check_cache_settings_singleton"),
)
class CachedUrl(Base):
"""Tracks URL to artifact mappings for provenance.
Records which URLs have been cached and maps them to their stored artifacts.
Enables "is this URL already cached?" lookups and audit trails.
"""
__tablename__ = "cached_urls"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
url = Column(String(4096), nullable=False)
url_hash = Column(String(64), unique=True, nullable=False)
artifact_id = Column(
String(64), ForeignKey("artifacts.id"), nullable=False
)
source_id = Column(
UUID(as_uuid=True),
ForeignKey("upstream_sources.id", ondelete="SET NULL"),
)
fetched_at = Column(DateTime(timezone=True), default=datetime.utcnow, nullable=False)
response_headers = Column(JSON, default=dict)
created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
# Relationships
artifact = relationship("Artifact")
source = relationship("UpstreamSource", back_populates="cached_urls")
__table_args__ = (
Index("idx_cached_urls_url_hash", "url_hash"),
Index("idx_cached_urls_artifact_id", "artifact_id"),
Index("idx_cached_urls_source_id", "source_id"),
Index("idx_cached_urls_fetched_at", "fetched_at"),
)
@staticmethod
def compute_url_hash(url: str) -> str:
"""Compute SHA256 hash of a URL for fast lookups."""
import hashlib
return hashlib.sha256(url.encode("utf-8")).hexdigest()
class PyPICacheTask(Base):
"""Task for caching a PyPI package and its dependencies.
Tracks the status of background caching operations with retry support.
Used by the PyPI proxy to ensure reliable dependency caching.
"""
__tablename__ = "pypi_cache_tasks"
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
# What to cache
package_name = Column(String(255), nullable=False)
version_constraint = Column(String(255))
# Origin tracking
parent_task_id = Column(
UUID(as_uuid=True),
ForeignKey("pypi_cache_tasks.id", ondelete="SET NULL"),
)
depth = Column(Integer, nullable=False, default=0)
triggered_by_artifact = Column(
String(64),
ForeignKey("artifacts.id", ondelete="SET NULL"),
)
# Status
status = Column(String(20), nullable=False, default="pending")
attempts = Column(Integer, nullable=False, default=0)
max_attempts = Column(Integer, nullable=False, default=3)
# Results
cached_artifact_id = Column(
String(64),
ForeignKey("artifacts.id", ondelete="SET NULL"),
)
error_message = Column(Text)
# Timing
created_at = Column(DateTime(timezone=True), nullable=False, default=datetime.utcnow)
started_at = Column(DateTime(timezone=True))
completed_at = Column(DateTime(timezone=True))
next_retry_at = Column(DateTime(timezone=True))
# Relationships
parent_task = relationship(
"PyPICacheTask",
remote_side=[id],
backref="child_tasks",
)
__table_args__ = (
Index("idx_pypi_cache_tasks_status_retry", "status", "next_retry_at"),
Index("idx_pypi_cache_tasks_package_status", "package_name", "status"),
Index("idx_pypi_cache_tasks_parent", "parent_task_id"),
Index("idx_pypi_cache_tasks_triggered_by", "triggered_by_artifact"),
Index("idx_pypi_cache_tasks_cached_artifact", "cached_artifact_id"),
Index("idx_pypi_cache_tasks_depth_created", "depth", "created_at"),
CheckConstraint(
"status IN ('pending', 'in_progress', 'completed', 'failed')",
name="check_task_status",
),
CheckConstraint("depth >= 0", name="check_depth_non_negative"),
CheckConstraint("attempts >= 0", name="check_attempts_non_negative"),
)