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dao.py
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dao.py
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# Copyright 2020 QuantStack
# Distributed under the terms of the Modified BSD License.
import json
import logging
import uuid
from collections import defaultdict
from datetime import date, datetime
from itertools import groupby
from typing import TYPE_CHECKING, Dict, List, Optional
from sqlalchemy import and_, func, insert, or_
from sqlalchemy.dialects.postgresql import insert as pg_insert
from sqlalchemy.exc import IntegrityError
from sqlalchemy.ext.compiler import compiles
from sqlalchemy.orm import Query, Session, aliased, exc, joinedload
from sqlalchemy.sql.expression import FunctionElement, Insert
from sqlalchemy.types import DateTime
from quetz import channel_data, errors, rest_models, versionorder
from quetz.database_extensions import version_match
from quetz.utils import apply_custom_query
from .db_models import (
ApiKey,
Channel,
ChannelMember,
ChannelMirror,
Email,
Identity,
Package,
PackageMember,
PackageVersion,
Profile,
User,
)
from .jobs.models import Job, JobStatus, Task, TaskStatus
from .metrics.db_models import (
IntervalType,
PackageVersionMetric,
next_timestamp,
round_timestamp,
)
if TYPE_CHECKING:
from quetz.authentication import base as auth_base
logger = logging.getLogger("quetz")
class date_trunc(FunctionElement):
"""round timestamp to nearest starting edge of an interval
Arguments
---------
interval: IntervalEnum
timestamp: datetime
"""
name = "date_trunc"
type = DateTime()
@compiles(date_trunc, 'postgresql')
def pg_date_trunc(element, compiler, **kw):
pg_map = {"H": "hour", "D": "day", "M": "month", "Y": "year"}
period, date = list(element.clauses)
return f"date_trunc('{pg_map[period.value.value]}', {compiler.process(date, **kw)})"
@compiles(date_trunc, 'sqlite')
def sqlite_date_trunc(element, compiler, **kw):
period, date = list(element.clauses)
now_interval = round_timestamp(date.value, period.value)
date.value = now_interval
return compiler.process(date)
class Upsert(Insert):
"""Upsert for PackageVersionMetrics table. Requires a unique
constraint to be defined.
Arguments
---------
table
values: values to insert
index_elements: columns of unique constraint
column: Column to be incremented
incr: increment
"""
inherit_cache = False
def __init__(self, table, values, index_elements, column, incr=1):
self.values = values
self.index_elements = index_elements
self.column = column
self._returning = None
self.table = table
self.incr = incr
self._inline = False
@compiles(Upsert, 'postgresql')
def upsert_pg(element, compiler, **kw):
index_elements = element.index_elements
values = element.values
column = element.column
incr = element.incr
table = element.table
stmt = pg_insert(table).values(values)
stmt = stmt.on_conflict_do_update(
index_elements=index_elements,
set_={column.name: column + incr},
)
return compiler.visit_insert(stmt)
@compiles(Upsert, 'sqlite')
def upsert_sql(element, compiler, **kw):
# on_conflict_do_update does exist in sqlite
# but it was ported to sqlalchemy only in version 1.4
# which was not released at the time of implementing this
# so we treat it with raw SQL syntax
# sqlite ref: https://www.sqlite.org/lang_upsert.html
# sqlalchemy 1.4 ref: https://docs.sqlalchemy.org/en/14/dialects/sqlite.html#insert-on-conflict-upsert # noqa
index_elements = element.index_elements
values = element.values
column = element.column
incr = element.incr
table = element.table
stmt = insert(table).values(values)
raw_sql = compiler.process(stmt)
upsert_stmt = (
f"ON CONFLICT ({','.join(index_elements)}) "
f"DO UPDATE SET {column.name}={column.name}+{incr}"
)
return raw_sql + " " + upsert_stmt
def get_paginated_result(query: Query, skip: int, limit: int):
count = query.order_by(None).count()
query = query.offset(skip)
if limit >= 0:
query = query.limit(limit)
return {
'pagination': {'skip': skip, 'limit': limit, 'all_records_count': count},
'result': query.all(),
}
def _parse_sort_by(query, model, sortstr: str):
sorts = sortstr.split(',')
for s in sorts:
splitted = s.split(':')
if len(splitted) == 2:
field, order = splitted
else:
field = s
order = 'desc'
if hasattr(model, field):
model_field = getattr(model, field)
if order == 'desc':
query = query.order_by(model_field.desc())
else:
query = query.order_by(model_field.asc())
return query
class Dao:
db: Session
def __init__(self, db: Session):
self.db = db
def rollback(self):
self.db.rollback()
def get_profile(self, user_id):
try:
return self.db.query(Profile).filter(Profile.user_id == user_id).one()
except exc.NoResultFound:
logger.error("User not found")
def get_user(self, user_id):
try:
return self.db.query(User).filter(User.id == user_id).one()
except exc.NoResultFound:
logger.error("User not found")
def get_users(self, skip: int, limit: int, q: str, order_by: str = 'username:asc'):
query = (
self.db.query(User)
.filter(User.username.isnot(None))
.filter(User.profile.has())
)
if q:
query = query.filter(User.username.ilike(f'%{q}%'))
query = query.options(joinedload(User.profile))
if order_by:
query = _parse_sort_by(query, User, order_by)
if limit < 0:
return query.all()
return get_paginated_result(query, skip, limit)
def get_user_by_username(self, username: str):
return (
self.db.query(User)
.filter(User.username == username)
.options(joinedload(User.profile))
.one_or_none()
)
def delete_user(self, user_id: bytes):
# we are not really removing users
# only their identity providers and profiles
self.db.query(Profile).filter(Profile.user_id == user_id).delete()
self.db.query(Identity).filter(Identity.user_id == user_id).delete()
self.db.query(ApiKey).filter(
or_(ApiKey.user_id == user_id, ApiKey.owner_id == user_id)
).delete()
self.db.commit()
def set_user_role(self, username: str, role: str):
user = self.db.query(User).filter(User.username == username).one_or_none()
if user:
user.role = role
self.db.commit()
def get_channels(
self,
skip: int,
limit: int,
q: Optional[str],
user_id: Optional[bytes],
include_public: bool = True,
):
query = self.db.query(Channel)
if user_id:
if include_public:
query = query.filter(
or_(
~Channel.private,
Channel.members.any(ChannelMember.user_id == user_id),
)
)
else:
query = query.filter(
Channel.members.any(ChannelMember.user_id == user_id)
)
else:
query = query.filter(Channel.private == False) # noqa
if q:
query = query.filter(Channel.name.ilike(f'%{q}%'))
if limit < 0:
return query.all()
return get_paginated_result(query, skip, limit)
def get_user_channels_with_role(
self,
skip: int,
limit: int,
user_id: bytes,
):
query = (
self.db.query(Channel.name, ChannelMember.role)
.join(ChannelMember)
.filter(ChannelMember.user_id == user_id)
)
if limit < 0:
return query.all()
return get_paginated_result(query, skip, limit)
def create_channel(
self,
data: rest_models.Channel,
user_id: Optional[bytes] = None,
role: Optional[str] = None,
size_limit: Optional[int] = None,
):
if '_' in data.name:
raise errors.ValidationError("_ should not be used in channel name")
if not data.name.isascii():
raise errors.ValidationError(
"only ASCII characters should be used in channel name"
)
channel = Channel(
name=data.name,
description=data.description,
mirror_channel_url=data.mirror_channel_url,
mirror_mode=data.mirror_mode,
private=data.private,
ttl=data.ttl,
channel_metadata=json.dumps(data.metadata.__dict__),
size_limit=size_limit,
)
self.db.add(channel)
if role and user_id:
member = ChannelMember(channel=channel, user_id=user_id, role=role)
self.db.add(member)
self.db.commit()
return channel
def cleanup_channel_db(
self,
channel_name: str,
package_name: Optional[str] = None,
dry_run: bool = False,
):
# remove all Packages without PackageVersions
package_without_package_versions = []
all_packages = self.db.query(Package).filter(
Package.channel_name == channel_name
)
if package_name:
all_packages = all_packages.filter(
PackageVersion.package_name == package_name
)
for each_package in all_packages:
all_package_versions = (
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.package_name == each_package.name)
)
if all_package_versions.count() == 0:
package_without_package_versions.append(each_package.name)
for each_package_name in package_without_package_versions:
if not dry_run:
self.db.query(PackageMember).filter(
PackageMember.channel_name == channel_name
).filter(PackageMember.package_name == each_package_name).delete()
self.db.query(Package).filter(
Package.channel_name == channel_name
).filter(Package.name == each_package_name).delete()
logger.info(
f"removing Package {channel_name}/{each_package_name} from db as "
"it has no PackageVersions"
)
if not dry_run:
self.db.commit()
# clean platforms / channeldata for Packages
all_packages = self.db.query(Package).filter(
Package.channel_name == channel_name
)
if package_name:
all_packages = all_packages.filter(
PackageVersion.package_name == package_name
)
for each_package in all_packages:
if each_package.channeldata is not None:
each_package_channeldata = json.loads(each_package.channeldata)
subdirs = each_package_channeldata["subdirs"]
if subdirs:
if not dry_run:
subdirs = sorted(list(set(subdirs)))
each_package_channeldata["subdirs"] = subdirs
each_package.channeldata = json.dumps(each_package_channeldata)
each_package.url = each_package_channeldata.get("home", "")
each_package.platforms = ":".join(
each_package_channeldata.get("subdirs", [])
)
logger.info(
"cleaning platforms and "
f"channeldata for {channel_name}/{each_package.name}"
)
if not dry_run:
self.db.commit()
if not package_name:
logger.info(f"Done cleaning up db for {channel_name}")
else:
logger.info(f"Done cleaning up db for {channel_name}/{package_name}")
# Re-sort all PackageVersions
all_packages = self.db.query(Package).filter(
Package.channel_name == channel_name
)
if package_name:
all_packages = all_packages.filter(
PackageVersion.package_name == package_name
)
for x, each_package in enumerate(all_packages):
all_versions_for_each_package = (
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.package_name == each_package.name)
.order_by(PackageVersion.version_order.asc())
).all()
if not dry_run:
v_dict = {}
for each_package_version in all_versions_for_each_package:
if each_package_version.version is not None:
v_dict[each_package_version] = versionorder.VersionOrder(
each_package_version.version
)
sorted_v = sorted(
v_dict.items(), key=lambda item: item[1], reverse=True
)
for i, (each_package_version, version) in enumerate(sorted_v):
each_package_version.version_order = i
logger.info(
f"Re-sorted PackageVersions for {channel_name}/{each_package.name}"
)
if not dry_run:
self.db.commit()
if not package_name:
logger.info(f"Done sorting package versions for {channel_name}")
else:
logger.info(
f"Done sorting package versions for {channel_name}/{package_name}"
)
def create_channel_mirror(
self, channel_name: str, url: str, api_endpoint: str, metrics_endpoint: str
):
channel_mirror = ChannelMirror(
channel_name=channel_name,
url=url,
api_endpoint=api_endpoint,
metrics_endpoint=metrics_endpoint,
)
self.db.add(channel_mirror)
self.db.commit()
return channel_mirror
def delete_channel_mirror(self, channel_name: str, mirror_id: str):
mirror_uuid = uuid.UUID(mirror_id).bytes
self.db.query(ChannelMirror).filter(ChannelMirror.id == mirror_uuid).filter(
ChannelMirror.channel_name == channel_name
).delete()
self.db.commit()
def update_channel(self, channel_name, data: dict):
self.db.query(Channel).filter(Channel.name == channel_name).update(
data, synchronize_session=False
)
self.db.commit()
def delete_channel(self, channel_name):
channel = self.get_channel(channel_name)
self.db.delete(channel)
self.db.commit()
def get_packages(
self,
channel_name: str,
skip: int,
limit: int,
q: Optional[str] = None,
order_by: Optional[str] = None,
):
query = self.db.query(Package).filter(Package.channel_name == channel_name)
if q:
query = query.filter(Package.name.like(f'%{q}%'))
if limit < 0:
return query.all()
if not order_by:
query = query.order_by(Package.name.asc())
else:
orders = order_by.split(',')
for o in orders:
if o.startswith('latest_change'):
query = query.join(Package.current_package_version)
if len(o.split(':')) == 2 and o.split(':') == 'desc':
query = query.order_by(PackageVersion.time_created.desc())
else:
query = query.order_by(PackageVersion.time_created.asc())
else:
query = _parse_sort_by(query, Package, order_by)
return get_paginated_result(query, skip, limit)
def get_user_packages(self, skip: int, limit: int, user_id: bytes):
query = (
self.db.query(Package.name, Package.channel_name, PackageMember.role)
.join(PackageMember)
.filter(PackageMember.user_id == user_id)
)
if limit < 0:
return query.all()
return get_paginated_result(query, skip, limit)
def search_packages(
self,
keywords: List[str],
filters: Optional[List[tuple]],
user_id: Optional[bytes],
order_by: str = 'name:asc',
):
db = self.db.query(Package).join(Channel)
query = apply_custom_query('package', db, keywords, filters)
if user_id:
query = query.filter(
or_(
Channel.private == False, # noqa
Channel.members.any(ChannelMember.user_id == user_id),
)
)
else:
query = query.filter(Channel.private == False) # noqa
if order_by:
query = _parse_sort_by(query, Package, order_by)
return query.all()
def search_channels(
self,
keywords: List[str],
filters: Optional[List[tuple]],
user_id: Optional[bytes],
order_by: str = 'name:asc',
):
db = self.db.query(Channel)
query = apply_custom_query('channel', db, keywords, filters)
if user_id:
query = query.filter(
or_(
Channel.private == False, # noqa
Channel.members.any(ChannelMember.user_id == user_id),
)
)
else:
query = query.filter(Channel.private == False) # noqa
if order_by:
query = _parse_sort_by(query, Channel, order_by)
return query.all()
def get_channel(self, channel_name: str) -> Optional[Channel]:
return self.db.query(Channel).filter(Channel.name == channel_name).one_or_none()
def get_package(self, channel_name: str, package_name: str):
return (
self.db.query(Package)
.join(Channel)
.filter(Channel.name == channel_name)
.filter(Package.name == package_name)
.one_or_none()
)
def create_package(
self,
channel_name: str,
new_package: rest_models.Package,
user_id: bytes,
role: str,
):
package = Package(
name=new_package.name,
summary=new_package.summary,
description=new_package.description,
channeldata="{}",
)
package.channel = (
self.db.query(Channel).filter(Channel.name == channel_name).one()
)
member = PackageMember(
channel=package.channel, package=package, user_id=user_id, role=role
)
self.db.add(package)
self.db.add(member)
try:
self.db.commit()
except IntegrityError as exc:
self.db.rollback()
raise errors.DBError(str(exc))
return package
def update_package_channeldata(self, channel_name, package_name, channeldata):
package = self.get_package(channel_name, package_name)
if package.channeldata:
old_data = json.loads(package.channeldata)
else:
old_data = None
data = channel_data.combine(old_data, channeldata)
package.channeldata = json.dumps(data)
package.url = data.get("home", "")
package.platforms = ":".join(data.get("subdirs", []))
self.db.commit()
def get_channel_members(self, channel_name: str):
return (
self.db.query(ChannelMember)
.join(User)
.filter(User.username.isnot(None))
.filter(ChannelMember.channel_name == channel_name)
.all()
)
def get_channel_member(self, channel_name, username):
return (
self.db.query(ChannelMember)
.join(User)
.filter(ChannelMember.channel_name == channel_name)
.filter(User.username == username)
.one_or_none()
)
def create_channel_member(self, channel_name, new_member):
user = self.get_user_by_username(new_member.username)
member = ChannelMember(
channel_name=channel_name, user_id=user.id, role=new_member.role
)
self.db.add(member)
self.db.commit()
def get_package_members(self, channel_name, package_name):
return (
self.db.query(PackageMember)
.join(User)
.filter(User.username.isnot(None))
.filter(PackageMember.channel_name == channel_name)
.filter(PackageMember.package_name == package_name)
.all()
)
def get_package_member(self, channel_name, package_name, username):
return (
self.db.query(PackageMember)
.join(User)
.filter(PackageMember.channel_name == channel_name)
.filter(PackageMember.package_name == package_name)
.filter(User.username == username)
.one_or_none()
)
def create_package_member(self, channel_name, package_name, new_member):
user = self.get_user_by_username(new_member.username)
member = PackageMember(
channel_name=channel_name,
package_name=package_name,
user_id=user.id,
role=new_member.role,
)
self.db.add(member)
self.db.commit()
def get_api_keys_with_members(self, user_id, api_key_id=None):
user_role_api_keys = (
self.db.query(ApiKey)
.filter(ApiKey.owner_id == user_id)
.filter(ApiKey.user_id == user_id)
.filter(~ApiKey.deleted)
)
custom_role_api_keys = (
self.db.query(ApiKey, PackageMember, ChannelMember)
.filter(ApiKey.owner_id == user_id)
.filter(~ApiKey.deleted)
.outerjoin(Profile, ApiKey.user_id == Profile.user_id)
.filter(Profile.name.is_(None))
.outerjoin(ChannelMember, ChannelMember.user_id == ApiKey.user_id)
.outerjoin(PackageMember, PackageMember.user_id == ApiKey.user_id)
)
if api_key_id:
user_role_api_keys = user_role_api_keys.filter(ApiKey.key == api_key_id)
custom_role_api_keys = custom_role_api_keys.filter(ApiKey.key == api_key_id)
user_role_api_keys = user_role_api_keys.all()
custom_role_api_keys = custom_role_api_keys.all()
return user_role_api_keys, custom_role_api_keys
def get_package_api_keys(self, user_id):
return (
self.db.query(PackageMember, ApiKey)
.join(User, PackageMember.user_id == User.id)
.join(ApiKey, ApiKey.user_id == User.id)
.filter(ApiKey.owner_id == user_id)
.filter(~ApiKey.deleted)
.all()
)
def get_channel_api_keys(self, user_id):
return (
self.db.query(ChannelMember, ApiKey)
.join(User, ChannelMember.user_id == User.id)
.join(ApiKey, ApiKey.user_id == User.id)
.filter(ApiKey.owner_id == user_id)
.filter(~ApiKey.deleted)
.all()
)
def create_api_key(self, user_id, api_key: rest_models.BaseApiKey, key):
owner = self.get_user(user_id)
# if no roles are passed, create an API key with the same permissions as user
if not api_key.roles:
user = owner
else:
user = User(id=uuid.uuid4().bytes)
self.db.add(user)
db_api_key = ApiKey(
key=key,
description=api_key.description,
time_created=date.today(),
expire_at=api_key.expire_at,
user=user,
owner=owner,
)
self.db.add(db_api_key)
if api_key.roles is not None:
for role in api_key.roles:
if role.package:
package_member = (
self.db.query(PackageMember)
.filter_by(
user=user,
channel_name=role.channel,
package_name=role.package,
)
.one_or_none()
)
if not package_member:
package_member = PackageMember(
user=user,
channel_name=role.channel,
package_name=role.package,
role=role.role,
)
self.db.add(package_member)
else:
package_member.role = role.role
else:
channel_member = (
self.db.query(ChannelMember)
.filter_by(user=user, channel_name=role.channel)
.one_or_none()
)
if not channel_member:
channel_member = ChannelMember(
user=user, channel_name=role.channel, role=role.role
)
self.db.add(channel_member)
else:
channel_member.role = role.role
self.db.commit()
return db_api_key
def get_api_key(self, key):
return self.db.query(ApiKey).get(key)
def create_version(
self,
channel_name,
package_name,
package_format,
platform,
version,
build_number,
build_string,
filename,
info,
uploader_id,
size,
upsert: bool = False,
):
# hold a lock on the package
package = ( # noqa
self.db.query(Package)
.with_for_update()
.filter(Package.channel_name == channel_name)
.filter(Package.name == package_name)
.join(PackageVersion)
.filter(PackageVersion.package_format == package_format)
.filter(PackageVersion.platform == platform)
).first()
existing_versions = (
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.package_name == package_name)
.filter(PackageVersion.package_format == package_format)
.filter(PackageVersion.platform == platform)
.filter(PackageVersion.version == version)
.filter(PackageVersion.build_number == build_number)
.filter(PackageVersion.build_string == build_string)
)
package_version = existing_versions.one_or_none()
if not package_version:
all_existing_versions = (
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.package_name == package_name)
.order_by(PackageVersion.version_order.asc())
).all()
version_order = 0
if all_existing_versions:
new_version = versionorder.VersionOrder(version)
for v in all_existing_versions:
# type checker justly complains that v.version could be None
# ignoring it before attempting true fix
other = versionorder.VersionOrder(v.version) # type: ignore
is_newer = other < new_version or (
other == new_version and v.build_number < build_number
)
if is_newer:
break
version_order = v.version_order if is_newer else v.version_order + 1
(
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.package_name == package_name)
.filter(PackageVersion.package_format == package_format)
.filter(PackageVersion.platform == platform)
.filter(PackageVersion.version_order >= version_order)
.update(
{"version_order": PackageVersion.version_order + 1},
)
)
package_version = PackageVersion(
id=uuid.uuid4().bytes,
channel_name=channel_name,
package_name=package_name,
package_format=package_format,
platform=platform,
version=version,
build_number=build_number,
build_string=build_string,
filename=filename,
info=info,
version_order=version_order,
uploader_id=uploader_id,
size=size,
)
self.db.add(package_version)
logger.debug(
f"adding package {package_name} version {version} to "
+ f"channel {channel_name}",
)
elif upsert:
existing_versions.update(
{
"filename": filename,
"info": info,
"uploader_id": uploader_id,
"time_modified": datetime.utcnow(),
"size": size,
},
synchronize_session="evaluate",
)
else:
raise IntegrityError("duplicate package version", "", "")
self.db.commit()
return package_version
def get_package_versions(
self,
package,
time_created_ge: datetime = None,
version_match_str: str = None,
skip: int = 0,
limit: int = -1,
):
ApiKeyProfile = aliased(Profile)
query = (
self.db.query(PackageVersion, Profile, ApiKeyProfile)
.outerjoin(Profile, Profile.user_id == PackageVersion.uploader_id)
.outerjoin(ApiKey, ApiKey.user_id == PackageVersion.uploader_id)
.outerjoin(ApiKeyProfile, ApiKey.owner_id == ApiKeyProfile.user_id)
.filter(PackageVersion.channel_name == package.channel_name)
.filter(PackageVersion.package_name == package.name)
.order_by(PackageVersion.version_order.asc())
)
if time_created_ge:
query = query.filter(PackageVersion.time_created >= time_created_ge)
if version_match_str:
if version_match:
query = query.filter(
version_match(PackageVersion.version, version_match_str)
)
else:
raise NotImplementedError(
"Quetz Database extension not loaded. Compile and configure "
"database_plugin_path correctly for support!"
)
if limit < 0:
return query.all()
else:
return get_paginated_result(query, skip, limit)
def get_package_version_by_filename(
self, channel_name: str, package_name: str, filename: str, platform: str
):
query = (
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.package_name == package_name)
.filter(PackageVersion.filename == filename)
.filter(PackageVersion.platform == platform)
)
return query.one_or_none()
def is_active_platform(self, channel_name: str, platform: str):
if platform == 'noarch':
return True
return (
self.db.query(PackageVersion)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.platform == platform)
.count()
> 0
)
def get_package_infos(self, channel_name: str, subdir: str):
# Returns iterator
return (
self.db.query(
PackageVersion.filename,
PackageVersion.info,
PackageVersion.package_format,
PackageVersion.time_modified,
)
.filter(PackageVersion.channel_name == channel_name)
.filter(PackageVersion.platform == subdir)
.order_by(PackageVersion.filename)
)