108 lines
6.8 KiB
Go
108 lines
6.8 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package gtsmodel
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import (
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"regexp"
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"time"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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// Filter stores a filter created by a local account.
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type Filter struct {
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ID string `bun:"type:CHAR(26),pk,nullzero,notnull,unique"` // id of this item in the database
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CreatedAt time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item created
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UpdatedAt time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item last updated
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ExpiresAt time.Time `bun:"type:timestamptz,nullzero"` // Time filter should expire. If null, should not expire.
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AccountID string `bun:"type:CHAR(26),notnull,nullzero"` // ID of the local account that created the filter.
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Title string `bun:",nullzero,notnull,unique"` // The name of the filter.
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Action FilterAction `bun:",nullzero,notnull"` // The action to take.
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Keywords []*FilterKeyword `bun:"-"` // Keywords for this filter.
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Statuses []*FilterStatus `bun:"-"` // Statuses for this filter.
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ContextHome *bool `bun:",nullzero,notnull,default:false"` // Apply filter to home timeline and lists.
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ContextNotifications *bool `bun:",nullzero,notnull,default:false"` // Apply filter to notifications.
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ContextPublic *bool `bun:",nullzero,notnull,default:false"` // Apply filter to home timeline and lists.
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ContextThread *bool `bun:",nullzero,notnull,default:false"` // Apply filter when viewing a status's associated thread.
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ContextAccount *bool `bun:",nullzero,notnull,default:false"` // Apply filter when viewing an account profile.
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}
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// Expired returns whether the filter has expired at a given time.
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// Filters without an expiration timestamp never expire.
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func (f *Filter) Expired(now time.Time) bool {
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return !f.ExpiresAt.IsZero() && !f.ExpiresAt.After(now)
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}
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// FilterKeyword stores a single keyword to filter statuses against.
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type FilterKeyword struct {
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ID string `bun:"type:CHAR(26),pk,nullzero,notnull,unique"` // id of this item in the database
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CreatedAt time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item created
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UpdatedAt time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item last updated
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AccountID string `bun:"type:CHAR(26),notnull,nullzero"` // ID of the local account that created the filter keyword.
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FilterID string `bun:"type:CHAR(26),notnull,nullzero,unique:filter_keywords_filter_id_keyword_uniq"` // ID of the filter that this keyword belongs to.
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Filter *Filter `bun:"-"` // Filter corresponding to FilterID
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Keyword string `bun:",nullzero,notnull,unique:filter_keywords_filter_id_keyword_uniq"` // The keyword or phrase to filter against.
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WholeWord *bool `bun:",nullzero,notnull,default:false"` // Should the filter consider word boundaries?
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Regexp *regexp.Regexp `bun:"-"` // pre-prepared regular expression
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}
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// Compile will compile this FilterKeyword as a prepared regular expression.
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func (k *FilterKeyword) Compile() (err error) {
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var (
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wordBreakStart string
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wordBreakEnd string
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)
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if util.PtrOrZero(k.WholeWord) {
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// Either word boundary or
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// whitespace or start of line.
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wordBreakStart = `(?:\b|\s|^)`
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// Either word boundary or
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// whitespace or end of line.
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wordBreakEnd = `(?:\b|\s|$)`
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}
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// Compile keyword filter regexp.
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quoted := regexp.QuoteMeta(k.Keyword)
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k.Regexp, err = regexp.Compile(`(?i)` + wordBreakStart + quoted + wordBreakEnd)
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return // caller is expected to wrap this error
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}
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// FilterStatus stores a single status to filter.
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type FilterStatus struct {
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ID string `bun:"type:CHAR(26),pk,nullzero,notnull,unique"` // id of this item in the database
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CreatedAt time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item created
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UpdatedAt time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // when was item last updated
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AccountID string `bun:"type:CHAR(26),notnull,nullzero"` // ID of the local account that created the filter keyword.
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FilterID string `bun:"type:CHAR(26),notnull,nullzero,unique:filter_statuses_filter_id_status_id_uniq"` // ID of the filter that this keyword belongs to.
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Filter *Filter `bun:"-"` // Filter corresponding to FilterID
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StatusID string `bun:"type:CHAR(26),notnull,nullzero,unique:filter_statuses_filter_id_status_id_uniq"` // ID of the status to filter.
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}
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// FilterAction represents the action to take on a filtered status.
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type FilterAction string
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const (
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// FilterActionNone filters should not exist, except internally, for partially constructed or invalid filters.
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FilterActionNone FilterAction = ""
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// FilterActionWarn means that the status should be shown behind a warning.
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FilterActionWarn FilterAction = "warn"
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// FilterActionHide means that the status should be removed from timeline results entirely.
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FilterActionHide FilterAction = "hide"
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)
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