jasonwitty
8edc368752
Three changes to the ai_summary plugin: - The *AI Summary* preferences tab is only rendered when the plugin is activated in settings.yml. An instance that does not offer AI summaries no longer shows an AI tab at all. The gate is the administrator setting, not the user opt-out, because the per user on/off switch lives inside that tab -- hiding it on opt-out would leave no way to opt back in. - Users can configure an API key for their own LLM server (ai_summary_api_key). The administrator key is still only sent to base_url and the user key only to a server the user configured, so neither key can be captured through the other. The setting is marked secret: credentials are excluded from the preferences URL, which users copy around to transfer or share their preferences. - Grounding summaries on the search results is now the default; the extra cost of the longer prompt is moderate. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
623 lines
22 KiB
Python
623 lines
22 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Searx preferences implementation."""
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# pylint: disable=useless-object-inheritance
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import typing as t
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from base64 import urlsafe_b64encode, urlsafe_b64decode
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from zlib import compress, decompress
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from urllib.parse import parse_qs, urlencode
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from collections import OrderedDict
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from collections.abc import Iterable
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import flask
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import babel
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import babel.core
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import searx.plugins
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from searx import get_setting, settings, autocomplete, favicons
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from searx.enginelib import Engine
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from searx.engines import DEFAULT_CATEGORY
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from searx.extended_types import SXNG_Request
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from searx.locales import LOCALE_NAMES
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from searx.webutils import VALID_LANGUAGE_CODE
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from ._settings import SettingsPref
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COOKIE_MAX_AGE = 60 * 60 * 24 * 365 * 5 # 5 years
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DOI_RESOLVERS = list(settings['doi_resolvers'])
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MAP_STR2BOOL: dict[str, bool] = OrderedDict(
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[
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('0', False),
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('1', True),
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('on', True),
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('off', False),
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('True', True),
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('False', False),
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('none', False),
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]
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)
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class ValidationException(Exception):
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"""Exption from ``cls.__init__`` when configuration value is invalid."""
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class Setting:
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"""Base class of user settings"""
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def __init__(self, default_value: t.Any, locked: bool = False, secret: bool = False):
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super().__init__()
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self.value: t.Any = default_value
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self.locked: bool = locked
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self.secret: bool = secret
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"""The value is a credential: it is not included in the preferences URL
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(:py:obj:`Preferences.get_as_url_params`), which users copy around to
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transfer or share their preferences."""
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def parse(self, data: str):
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"""Parse ``data`` and store the result at ``self.value``
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If needed, its overwritten in the inheritance.
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"""
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self.value = data
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def get_value(self):
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"""Returns the value of the setting
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If needed, its overwritten in the inheritance.
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"""
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return self.value
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def save(self, name: str, resp: flask.Response):
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"""Save cookie ``name`` in the HTTP response object
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If needed, its overwritten in the inheritance."""
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resp.set_cookie(name, self.value, max_age=COOKIE_MAX_AGE)
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class StringSetting(Setting):
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"""Setting of plain string values"""
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class EnumStringSetting(Setting):
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"""Setting of a value which can only come from the given choices"""
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value: str
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def __init__(self, default_value: str, choices: Iterable[str], locked: bool = False):
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super().__init__(default_value, locked)
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self.choices: Iterable[str] = choices
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self._validate_selection(self.value)
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def _validate_selection(self, selection: str):
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if selection not in self.choices:
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raise ValidationException('Invalid value: "{0}"'.format(selection))
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def parse(self, data: str):
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"""Parse and validate ``data`` and store the result at ``self.value``"""
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self._validate_selection(data)
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self.value = data
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class MultipleChoiceSetting(Setting):
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"""Setting of values which can only come from the given choices"""
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def __init__(self, default_value: list[str], choices: Iterable[str], locked: bool = False):
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super().__init__(default_value, locked)
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self.choices: Iterable[str] = choices
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self._validate_selections(self.value)
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def _validate_selections(self, selections: list[str]):
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for item in selections:
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if item not in self.choices:
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raise ValidationException('Invalid value: "{0}"'.format(selections))
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def parse(self, data: str):
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"""Parse and validate ``data`` and store the result at ``self.value``"""
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if data == '':
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self.value: list[str] = []
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return
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elements = data.split(',')
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self._validate_selections(elements)
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self.value = elements
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def parse_form(self, data: list[str]):
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if self.locked:
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return
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self.value = []
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for choice in data:
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if choice in self.choices and choice not in self.value:
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self.value.append(choice)
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def save(self, name: str, resp: flask.Response):
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"""Save cookie ``name`` in the HTTP response object"""
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resp.set_cookie(name, ','.join(self.value), max_age=COOKIE_MAX_AGE)
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class SetSetting(Setting):
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"""Setting of values of type ``set`` (comma separated string)"""
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def __init__(self, *args, **kwargs): # type: ignore
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super().__init__(*args, **kwargs) # type: ignore
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self.values: set[str] = set()
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def get_value(self):
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"""Returns a string with comma separated values."""
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return ','.join(self.values)
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def parse(self, data: str):
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"""Parse and validate ``data`` and store the result at ``self.value``"""
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if data == '':
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self.values = set()
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return
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elements = data.split(',')
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for element in elements:
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self.values.add(element)
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def parse_form(self, data: str):
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if self.locked:
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return
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elements = data.split(',')
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self.values = set(elements)
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def save(self, name: str, resp: flask.Response):
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"""Save cookie ``name`` in the HTTP response object"""
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resp.set_cookie(name, ','.join(self.values), max_age=COOKIE_MAX_AGE)
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class SearchLanguageSetting(EnumStringSetting):
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"""Available choices may change, so user's value may not be in choices anymore"""
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value: str
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def _validate_selection(self, selection: str):
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if selection != '' and selection != 'auto' and not VALID_LANGUAGE_CODE.match(selection):
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raise ValidationException('Invalid language code: "{0}"'.format(selection))
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def parse(self, data: str):
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"""Parse and validate ``data`` and store the result at ``self.value``"""
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if data not in self.choices and data != self.value:
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# hack to give some backwards compatibility with old language cookies
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data = str(data).replace('_', '-')
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lang = data.split('-', maxsplit=1)[0]
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if data in self.choices:
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pass
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elif lang in self.choices:
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data = lang
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else:
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data = self.value
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self._validate_selection(data)
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self.value = data
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class MapSetting(Setting):
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"""Setting of a value that has to be translated in order to be storable"""
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key: str
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value: object
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def __init__(
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self, default_value: object, map: dict[str, object], locked: bool = False
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): # pylint: disable=redefined-builtin
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super().__init__(default_value, locked)
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self.map: dict[str, object] = map
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if self.value not in self.map.values():
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raise ValidationException('Invalid default value')
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def parse(self, data: str):
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"""Parse and validate ``data`` and store the result at ``self.value``"""
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if data not in self.map:
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raise ValidationException('Invalid choice: {0}'.format(data))
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self.value = self.map[data]
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self.key = data # pylint: disable=attribute-defined-outside-init
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def save(self, name: str, resp: flask.Response):
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"""Save cookie ``name`` in the HTTP response object"""
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if hasattr(self, 'key'):
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resp.set_cookie(name, self.key, max_age=COOKIE_MAX_AGE)
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class BooleanSetting(Setting):
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"""Setting of a boolean value that has to be translated in order to be storable"""
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value: bool
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key: str
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def normalized_str(self, val: t.Any) -> str:
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for v_str, v_obj in MAP_STR2BOOL.items():
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if val == v_obj:
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return v_str
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raise ValueError("Invalid value: %s (%s) is not a boolean!" % (repr(val), type(val)))
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def parse(self, data: str):
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"""Parse and validate ``data`` and store the result at ``self.value``"""
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self.value = MAP_STR2BOOL[data]
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self.key = self.normalized_str(self.value) # pylint: disable=attribute-defined-outside-init
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def save(self, name: str, resp: flask.Response):
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"""Save cookie ``name`` in the HTTP response object"""
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if hasattr(self, 'key'):
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resp.set_cookie(name, self.key, max_age=COOKIE_MAX_AGE)
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class BooleanChoices:
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"""Maps strings to booleans that are either true or false."""
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def __init__(self, name: str, choices: dict[str, bool], locked: bool = False):
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self.name: str = name
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self.choices: dict[str, bool] = choices
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self.locked: bool = locked
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self.default_choices: dict[str, bool] = dict(choices)
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def transform_form_items(self, items):
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return items
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def transform_values(self, values):
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return values
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def parse_cookie(self, data_disabled: str, data_enabled: str):
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for disabled in data_disabled.split(','):
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if disabled in self.choices:
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self.choices[disabled] = False
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for enabled in data_enabled.split(','):
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if enabled in self.choices:
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self.choices[enabled] = True
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def parse_form(self, items: list[str]):
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if self.locked:
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return
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disabled = self.transform_form_items(items)
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for setting in self.choices:
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self.choices[setting] = setting not in disabled
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@property
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def enabled(self):
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return (k for k, v in self.choices.items() if v)
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@property
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def disabled(self):
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return (k for k, v in self.choices.items() if not v)
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def save(self, resp: flask.Response):
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"""Save cookie in the HTTP response object"""
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disabled_changed = (k for k in self.disabled if self.default_choices[k])
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enabled_changed = (k for k in self.enabled if not self.default_choices[k])
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resp.set_cookie('disabled_{0}'.format(self.name), ','.join(disabled_changed), max_age=COOKIE_MAX_AGE)
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resp.set_cookie('enabled_{0}'.format(self.name), ','.join(enabled_changed), max_age=COOKIE_MAX_AGE)
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def get_disabled(self):
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return self.transform_values(list(self.disabled))
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def get_enabled(self):
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return self.transform_values(list(self.enabled))
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class EnginesSetting(BooleanChoices):
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"""Engine settings"""
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def __init__(self, default_value, engines: Iterable[Engine]):
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choices = {}
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for engine in engines:
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for category in engine.categories:
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if not category in list(settings['categories_as_tabs'].keys()) + [DEFAULT_CATEGORY]:
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continue
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choices['{}__{}'.format(engine.name, category)] = not engine.disabled
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super().__init__(default_value, choices)
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def transform_form_items(self, items):
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return [item[len('engine_') :].replace('_', ' ').replace(' ', '__') for item in items]
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def transform_values(self, values):
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if len(values) == 1 and next(iter(values)) == '':
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return []
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transformed_values = []
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for value in values:
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engine, category = value.split('__')
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transformed_values.append((engine, category))
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return transformed_values
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class PluginsSetting(BooleanChoices):
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"""Plugin settings"""
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def __init__(self, default_value, plugins: Iterable[searx.plugins.Plugin]):
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super().__init__(default_value, {plugin.id: plugin.active for plugin in plugins})
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def transform_form_items(self, items):
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return [item[len('plugin_') :] for item in items]
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class ClientPref:
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"""Container to assemble client prefferences and settings."""
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# hint: searx.webapp.get_client_settings should be moved into this class
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locale: babel.Locale | None
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"""Locale preferred by the client."""
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def __init__(self, locale: babel.Locale | None = None):
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self.locale = locale
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@property
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def locale_tag(self):
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if self.locale is None:
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return None
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tag = self.locale.language
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if self.locale.territory:
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tag += '-' + self.locale.territory
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return tag
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@classmethod
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def from_http_request(cls, http_request: SXNG_Request):
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"""Build ClientPref object from HTTP request.
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- `Accept-Language used for locale setting
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<https://www.w3.org/International/questions/qa-accept-lang-locales.en>`__
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"""
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al_header = http_request.headers.get("Accept-Language")
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if not al_header:
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return cls(locale=None)
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pairs: list[tuple[babel.Locale, float]] = []
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for l in al_header.split(','):
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# fmt: off
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lang, qvalue = [_.strip() for _ in (l.split(';') + ['q=1',])[:2]]
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# fmt: on
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try:
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qvalue = float(qvalue.split('=')[-1])
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locale = babel.Locale.parse(lang, sep='-')
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except (ValueError, babel.core.UnknownLocaleError):
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continue
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pairs.append((locale, qvalue))
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locale = None
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if pairs:
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pairs.sort(reverse=True, key=lambda x: x[1])
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locale = pairs[0][0]
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return cls(locale=locale)
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@t.final
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class Preferences:
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"""Validates and saves preferences to cookies"""
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def __init__(
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self,
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themes: list[str],
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categories: list[str],
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engines: dict[str, Engine],
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plugins: searx.plugins.PluginStorage,
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client: ClientPref | None = None,
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):
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super().__init__()
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self.cfg: SettingsPref = get_setting("preferences")
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self.key_value_settings: dict[str, Setting] = {
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'categories': MultipleChoiceSetting(
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["general"],
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locked="categories" in self.cfg.lock,
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choices=categories + ["none"],
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),
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'language': SearchLanguageSetting(
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get_setting("search.default_lang"),
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locked="language" in self.cfg.lock,
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choices=get_setting("search.languages") + [""],
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),
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'locale': EnumStringSetting(
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get_setting("ui.default_locale"),
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locked="locale" in self.cfg.lock,
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choices=list(LOCALE_NAMES.keys()) + [""],
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),
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'autocomplete': EnumStringSetting(
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get_setting("search.autocomplete"),
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locked="autocomplete" in self.cfg.lock,
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choices=list(autocomplete.backends.keys()) + [""],
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),
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'favicon_resolver': EnumStringSetting(
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get_setting("search.favicon_resolver"),
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locked="favicon_resolver" in self.cfg.lock,
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choices=list(favicons.proxy.CFG.resolver_map.keys()) + [''],
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),
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'image_proxy': BooleanSetting(
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get_setting("server.image_proxy"),
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locked="image_proxy" in self.cfg.lock,
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),
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'method': EnumStringSetting(
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get_setting("server.method"),
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locked="method" in self.cfg.lock,
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choices=("GET", "POST"),
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),
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'safesearch': MapSetting(
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get_setting("search.safe_search"),
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locked="safesearch" in self.cfg.lock,
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map={
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"0": 0,
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"1": 1,
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"2": 2,
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},
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),
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'theme': EnumStringSetting(
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get_setting("ui.default_theme"),
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locked="theme" in self.cfg.lock,
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choices=themes,
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),
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'results_on_new_tab': BooleanSetting(
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get_setting("ui.results_on_new_tab"),
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locked="results_on_new_tab" in self.cfg.lock,
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),
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'doi_resolver': MultipleChoiceSetting(
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[get_setting("default_doi_resolver")],
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locked="doi_resolver" in self.cfg.lock,
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choices=DOI_RESOLVERS,
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),
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# empty values fall back to the administrator's defaults in the
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# ai_summary: section (searx.ai_summary.SettingsAISummary)
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'ai_summary_server': StringSetting(
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"",
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locked="ai_summary_server" in self.cfg.lock,
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),
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'ai_summary_api_key': StringSetting(
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"",
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locked="ai_summary_api_key" in self.cfg.lock,
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# a user's API key is only sent to a server the user configured
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# themselves, and it is never part of the preferences URL
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secret=True,
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),
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'ai_summary_model': StringSetting(
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"",
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locked="ai_summary_model" in self.cfg.lock,
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),
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'ai_summary_grounding': BooleanSetting(
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get_setting("ai_summary").grounding,
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locked="ai_summary_grounding" in self.cfg.lock,
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),
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'simple_style': EnumStringSetting(
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get_setting("ui.theme_args.simple_style"),
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locked="simple_style" in self.cfg.lock,
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choices=["", "auto", "light", "dark", "black"],
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),
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'center_alignment': BooleanSetting(
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get_setting("ui.center_alignment"),
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locked="center_alignment" in self.cfg.lock,
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),
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'query_in_title': BooleanSetting(
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get_setting("ui.query_in_title"),
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locked="query_in_title" in self.cfg.lock,
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),
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'search_on_category_select': BooleanSetting(
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get_setting("ui.search_on_category_select"),
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locked="search_on_category_select" in self.cfg.lock,
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),
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'hotkeys': EnumStringSetting(
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get_setting("ui.hotkeys"),
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choices=["default", "vim"],
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),
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'url_formatting': EnumStringSetting(
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get_setting("ui.url_formatting"),
|
|
choices=["pretty", "full", "host"],
|
|
),
|
|
}
|
|
|
|
self.engines = EnginesSetting('engines', engines=engines.values())
|
|
self.plugins = PluginsSetting('plugins', plugins=plugins)
|
|
self.tokens = SetSetting('tokens')
|
|
self.client = client or ClientPref()
|
|
|
|
def get_as_url_params(self):
|
|
"""Return preferences as URL parameters"""
|
|
settings_kv = {}
|
|
for k, v in self.key_value_settings.items():
|
|
if v.locked or v.secret:
|
|
continue
|
|
if isinstance(v, MultipleChoiceSetting):
|
|
settings_kv[k] = ','.join(v.get_value())
|
|
else:
|
|
settings_kv[k] = v.get_value()
|
|
|
|
settings_kv['disabled_engines'] = ','.join(self.engines.disabled)
|
|
settings_kv['enabled_engines'] = ','.join(self.engines.enabled)
|
|
|
|
settings_kv['disabled_plugins'] = ','.join(self.plugins.disabled)
|
|
settings_kv['enabled_plugins'] = ','.join(self.plugins.enabled)
|
|
|
|
settings_kv['tokens'] = ','.join(self.tokens.values)
|
|
|
|
return urlsafe_b64encode(compress(urlencode(settings_kv).encode())).decode()
|
|
|
|
def parse_encoded_data(self, input_data: str):
|
|
"""parse (base64) preferences from request (``flask.request.form['preferences']``)"""
|
|
bin_data = decompress(urlsafe_b64decode(input_data))
|
|
dict_data = {}
|
|
for x, y in parse_qs(bin_data.decode('ascii'), keep_blank_values=True).items():
|
|
dict_data[x] = y[0]
|
|
self.parse_dict(dict_data)
|
|
|
|
def parse_dict(self, input_data: dict[str, str]):
|
|
"""parse preferences from request (``flask.request.form``)"""
|
|
for user_setting_name, user_setting in input_data.items():
|
|
if user_setting_name in self.key_value_settings:
|
|
if self.key_value_settings[user_setting_name].locked:
|
|
continue
|
|
self.key_value_settings[user_setting_name].parse(user_setting)
|
|
elif user_setting_name == 'disabled_engines':
|
|
self.engines.parse_cookie(input_data.get('disabled_engines', ''), input_data.get('enabled_engines', ''))
|
|
elif user_setting_name == 'disabled_plugins':
|
|
self.plugins.parse_cookie(input_data.get('disabled_plugins', ''), input_data.get('enabled_plugins', ''))
|
|
elif user_setting_name == 'tokens':
|
|
self.tokens.parse(user_setting)
|
|
|
|
def parse_form(self, input_data: dict[str, str]):
|
|
"""Parse formular (``<input>``) data from a ``flask.request.form``"""
|
|
disabled_engines = []
|
|
enabled_categories = []
|
|
disabled_plugins = []
|
|
|
|
# boolean preferences are not sent by the form if they're false,
|
|
# so we have to add them as false manually if they're not sent (then they would be true)
|
|
for key, setting in self.key_value_settings.items():
|
|
if key not in input_data.keys() and isinstance(setting, BooleanSetting):
|
|
input_data[key] = 'False'
|
|
|
|
for user_setting_name, user_setting in input_data.items():
|
|
if user_setting_name in self.key_value_settings:
|
|
self.key_value_settings[user_setting_name].parse(user_setting)
|
|
elif user_setting_name.startswith('engine_'):
|
|
disabled_engines.append(user_setting_name)
|
|
elif user_setting_name.startswith('category_'):
|
|
enabled_categories.append(user_setting_name[len('category_') :])
|
|
elif user_setting_name.startswith('plugin_'):
|
|
disabled_plugins.append(user_setting_name)
|
|
elif user_setting_name == 'tokens':
|
|
self.tokens.parse_form(user_setting)
|
|
|
|
self.key_value_settings['categories'].parse_form(enabled_categories) # type: ignore
|
|
self.engines.parse_form(disabled_engines)
|
|
self.plugins.parse_form(disabled_plugins)
|
|
|
|
# cannot be used in case of engines or plugins
|
|
def get_value(self, user_setting_name: str) -> t.Any:
|
|
"""Returns the value for ``user_setting_name``"""
|
|
ret_val = None
|
|
if user_setting_name in self.key_value_settings:
|
|
ret_val = self.key_value_settings[user_setting_name].get_value()
|
|
return ret_val
|
|
|
|
def save(self, resp: flask.Response):
|
|
"""Save cookie in the HTTP response object"""
|
|
for user_setting_name, user_setting in self.key_value_settings.items():
|
|
# pylint: disable=unnecessary-dict-index-lookup
|
|
if self.key_value_settings[user_setting_name].locked:
|
|
continue
|
|
user_setting.save(user_setting_name, resp)
|
|
self.engines.save(resp)
|
|
self.plugins.save(resp)
|
|
self.tokens.save('tokens', resp)
|
|
return resp
|
|
|
|
def validate_token(self, engine):
|
|
valid = True
|
|
if hasattr(engine, 'tokens') and engine.tokens:
|
|
valid = False
|
|
for token in self.tokens.values:
|
|
if token in engine.tokens:
|
|
valid = True
|
|
break
|
|
|
|
return valid
|