superset2/superset/dashboards/filters.py

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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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# pylint: disable=too-few-public-methods
from typing import Any, Optional

from flask_appbuilder.security.sqla.models import Role
from flask_babel import lazy_gettext as _
from sqlalchemy import and_, or_
from sqlalchemy.orm.query import Query

from superset import db, is_feature_enabled, security_manager
from superset.models.core import FavStar
from superset.models.dashboard import Dashboard
from superset.models.slice import Slice
from superset.views.base import BaseFilter, get_user_roles, is_user_admin
from superset.views.base_api import BaseFavoriteFilter


class DashboardTitleOrSlugFilter(BaseFilter):
    name = _("Title or Slug")
    arg_name = "title_or_slug"

    def apply(self, query: Query, value: Any) -> Query:
        if not value:
            return query
        ilike_value = f"%{value}%"
        return query.filter(
            or_(
                Dashboard.dashboard_title.ilike(ilike_value),
                Dashboard.slug.ilike(ilike_value),
            )
        )


class DashboardFavoriteFilter(BaseFavoriteFilter):
    """
    Custom filter for the GET list that filters all dashboards that a user has favored
    """

    arg_name = "dashboard_is_favorite"
    class_name = "Dashboard"
    model = Dashboard


class DashboardAccessFilter(BaseFilter):
    """
    List dashboards with the following criteria:
        1. Those which the user owns
        2. Those which the user has favorited
        3. Those which have been published (if they have access to at least one slice)

    If the user is an admin then show all dashboards.
    This means they do not get curation but can still sort by "published"
    if they wish to see those dashboards which are published first.
    """

    def apply(self, query: Query, value: Any) -> Query:
        if is_user_admin():
            return query

        datasource_perms = security_manager.user_view_menu_names("datasource_access")
        schema_perms = security_manager.user_view_menu_names("schema_access")

        is_rbac_disabled_filter = []
        dashboard_has_roles = Dashboard.roles.any()
        if is_feature_enabled("DASHBOARD_RBAC"):
            is_rbac_disabled_filter.append(~dashboard_has_roles)

        datasource_perm_query = (
            db.session.query(Dashboard.id)
            .join(Dashboard.slices)
            .filter(
                and_(
                    Dashboard.published.is_(True),
                    *is_rbac_disabled_filter,
                    or_(
                        Slice.perm.in_(datasource_perms),
                        Slice.schema_perm.in_(schema_perms),
                        security_manager.can_access_all_datasources(),
                    ),
                )
            )
        )

        users_favorite_dash_query = db.session.query(FavStar.obj_id).filter(
            and_(
                FavStar.user_id == security_manager.user_model.get_user_id(),
                FavStar.class_name == "Dashboard",
            )
        )
        owner_ids_query = (
            db.session.query(Dashboard.id)
            .join(Dashboard.owners)
            .filter(
                security_manager.user_model.id
                == security_manager.user_model.get_user_id()
            )
        )

        dashboard_rbac_or_filters = []
        if is_feature_enabled("DASHBOARD_RBAC"):
            roles_based_query = (
                db.session.query(Dashboard.id)
                .join(Dashboard.roles)
                .filter(
                    and_(
                        Dashboard.published.is_(True),
                        dashboard_has_roles,
                        Role.id.in_([x.id for x in get_user_roles()]),
                    ),
                )
            )

            dashboard_rbac_or_filters.append(Dashboard.id.in_(roles_based_query))

        query = query.filter(
            or_(
                Dashboard.id.in_(owner_ids_query),
                Dashboard.id.in_(datasource_perm_query),
                Dashboard.id.in_(users_favorite_dash_query),
                *dashboard_rbac_or_filters,
            )
        )

        return query


class FilterRelatedRoles(BaseFilter):
    """
    A filter to allow searching for related roles of a resource.

    Use in the api by adding something like:
    related_field_filters = {
      "roles": RelatedFieldFilter("name", FilterRelatedRoles),
    }
    """

    name = _("Role")
    arg_name = "roles"

    def apply(self, query: Query, value: Optional[Any]) -> Query:
        role_model = security_manager.role_model
        if value:
            return query.filter(role_model.name.ilike(f"%{value}%"),)
        return query