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# SPDX-License-Identifier: GPL-3.0-or-later
# Haketilo proxy data and configuration (update of dependency tree in the db).
#
# This file is part of Hydrilla&Haketilo.
#
# Copyright (C) 2022 Wojtek Kosior
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
#
# I, Wojtek Kosior, thereby promise not to sue for violation of this
# file's license. Although I request that you do not make use this code
# in a proprietary program, I am not going to enforce this in court.
"""
....
"""
# Enable using with Python 3.7.
from __future__ import annotations
import sqlite3
import typing as t
from .... import item_infos
from ... import simple_dependency_satisfying as sds
from .pull_missing_files import pull_missing_files, FileResolver, \
DummyFileResolver
AnyInfoVar = t.TypeVar(
'AnyInfoVar',
item_infos.ResourceInfo,
item_infos.MappingInfo
)
def _get_infos_of_type(cursor: sqlite3.Cursor, info_type: t.Type[AnyInfoVar],) \
-> t.Mapping[int, AnyInfoVar]:
cursor.execute(
'''
SELECT
i.item_id, iv.definition, r.name, ri.iteration
FROM
item_versions AS iv
JOIN items AS i USING (item_id)
JOIN repo_iterations AS ri USING (repo_iteration_id)
JOIN repos AS r USING (repo_id)
WHERE
i.type = ?;
''',
(info_type.type_name[0].upper(),)
)
result: dict[int, AnyInfoVar] = {}
for item_id, definition, repo_name, repo_iteration in cursor.fetchall():
info = info_type.load(definition, repo_name, repo_iteration)
result[item_id] = info
return result
def _mark_version_installed(cursor: sqlite3.Cursor, version_id: int) -> None:
cursor.execute(
'''
UPDATE
item_versions
SET
installed = 'I'
WHERE
item_version_id = ?;
''',
(version_id,)
)
def _recompute_dependencies_no_state_update_no_pull_files(
cursor: sqlite3.Cursor,
extra_requirements: t.Iterable[sds.MappingRequirement]
) -> None:
cursor.execute('DELETE FROM payloads;')
ids_to_resources = _get_infos_of_type(cursor, item_infos.ResourceInfo)
ids_to_mappings = _get_infos_of_type(cursor, item_infos.MappingInfo)
resources = ids_to_resources.items()
resources_to_ids = dict((info.identifier, id) for id, info in resources)
mappings = ids_to_mappings.items()
mappings_to_ids = dict((info.identifier, id) for id, info in mappings)
requirements = [*extra_requirements]
cursor.execute(
'''
SELECT
i.identifier
FROM
mapping_statuses AS ms
JOIN items AS i USING(item_id)
WHERE
ms.enabled = 'E' AND ms.frozen = 'N';
'''
)
for mapping_identifier, in cursor.fetchall():
requirements.append(sds.MappingRequirement(mapping_identifier))
cursor.execute(
'''
SELECT
active_version_id, frozen
FROM
mapping_statuses
WHERE
enabled = 'E' AND frozen IN ('R', 'E');
'''
)
for active_version_id, frozen in cursor.fetchall():
info = ids_to_mappings[active_version_id]
requirement: sds.MappingRequirement
if frozen == 'R':
requirement = sds.MappingRepoRequirement(info.identifier, info.repo)
else:
requirement = sds.MappingVersionRequirement(info.identifier, info)
requirements.append(requirement)
mapping_choices = sds.compute_payloads(
ids_to_resources.values(),
ids_to_mappings.values(),
requirements
)
cursor.execute(
'''
UPDATE
mapping_statuses
SET
required = FALSE,
active_version_id = NULL
WHERE
enabled != 'E';
'''
)
cursor.execute('DELETE FROM payloads;')
for choice in mapping_choices.values():
mapping_ver_id = mappings_to_ids[choice.info.identifier]
if choice.required:
_mark_version_installed(cursor, mapping_ver_id)
cursor.execute(
'''
SELECT
item_id
FROM
item_versions
WHERE
item_version_id = ?;
''',
(mapping_ver_id,)
)
(mapping_item_id,), = cursor.fetchall()
cursor.execute(
'''
UPDATE
mapping_statuses
SET
required = ?,
active_version_id = ?
WHERE
item_id = ?;
''',
(choice.required, mapping_ver_id, mapping_item_id)
)
for num, (pattern, payload) in enumerate(choice.payloads.items()):
cursor.execute(
'''
INSERT INTO payloads(
mapping_item_id,
pattern,
eval_allowed,
cors_bypass_allowed
)
VALUES (?, ?, ?, ?);
''',
(
mapping_ver_id,
pattern.orig_url,
payload.allows_eval,
payload.allows_cors_bypass
)
)
cursor.execute(
'''
SELECT
payload_id
FROM
payloads
WHERE
mapping_item_id = ? AND pattern = ?;
''',
(mapping_ver_id, pattern.orig_url)
)
(payload_id,), = cursor.fetchall()
for res_num, resource_info in enumerate(payload.resources):
resource_ver_id = resources_to_ids[resource_info.identifier]
if choice.required:
_mark_version_installed(cursor, resource_ver_id)
cursor.execute(
'''
INSERT INTO resolved_depended_resources(
payload_id,
resource_item_id,
idx
)
VALUES(?, ?, ?);
''',
(payload_id, resource_ver_id, res_num)
)
def _recompute_dependencies_no_state_update(
cursor: sqlite3.Cursor,
extra_requirements: t.Iterable[sds.MappingRequirement] = (),
semirepo_file_resolver: FileResolver = DummyFileResolver()
) -> None:
_recompute_dependencies_no_state_update_no_pull_files(
cursor,
extra_requirements
)
pull_missing_files(cursor, semirepo_file_resolver)
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