mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-10-31 22:40:01 +00:00
3cceed11b2
* [feature/performance] Store account stats in separate table, get stats from remote * test account stats * add some missing increment / decrement calls * change stats function signatures * rejig logging a bit * use lock when updating stats
1262 lines
39 KiB
Go
1262 lines
39 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 dereferencing
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import (
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"context"
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"errors"
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"io"
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"net/url"
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"time"
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"github.com/superseriousbusiness/activity/pub"
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"github.com/superseriousbusiness/gotosocial/internal/ap"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/id"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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"github.com/superseriousbusiness/gotosocial/internal/media"
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"github.com/superseriousbusiness/gotosocial/internal/transport"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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// accountFresh returns true if the given account is
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// still considered "fresh" according to the desired
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// freshness window (falls back to default if nil).
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//
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// Local accounts will always be considered fresh because
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// there's no remote state that could have changed.
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//
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// True is also returned for suspended accounts, since
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// we'll never want to try to refresh one of these.
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//
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// Return value of false indicates that the account
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// is not fresh and should be refreshed from remote.
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func accountFresh(
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account *gtsmodel.Account,
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window *FreshnessWindow,
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) bool {
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if window == nil {
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window = DefaultAccountFreshness
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}
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if account.IsLocal() {
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// Can't refresh
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// local accounts.
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return true
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}
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if account.IsSuspended() {
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// Can't/won't refresh
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// suspended accounts.
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return true
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}
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if account.IsInstance() &&
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!account.IsNew() {
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// Existing instance account.
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// No need for refresh.
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return true
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}
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// Moment when the account is
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// considered stale according to
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// desired freshness window.
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staleAt := account.FetchedAt.Add(
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time.Duration(*window),
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)
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// It's still fresh if the time now
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// is not past the point of staleness.
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return !time.Now().After(staleAt)
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}
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// GetAccountByURI will attempt to fetch an accounts by its URI, first checking the database. In the case of a newly-met remote model, or a remote model
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// whose last_fetched date is beyond a certain interval, the account will be dereferenced. In the case of dereferencing, some low-priority account information
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// may be enqueued for asynchronous fetching, e.g. featured account statuses (pins). An ActivityPub object indicates the account was dereferenced.
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func (d *Dereferencer) GetAccountByURI(ctx context.Context, requestUser string, uri *url.URL) (*gtsmodel.Account, ap.Accountable, error) {
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// Fetch and dereference account if necessary.
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account, accountable, err := d.getAccountByURI(ctx,
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requestUser,
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uri,
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)
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if err != nil {
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return nil, nil, err
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}
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if accountable != nil {
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// This account was updated, enqueue re-dereference featured posts.
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d.state.Workers.Federator.MustEnqueueCtx(ctx, func(ctx context.Context) {
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if err := d.dereferenceAccountFeatured(ctx, requestUser, account); err != nil {
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log.Errorf(ctx, "error fetching account featured collection: %v", err)
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}
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})
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}
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return account, accountable, nil
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}
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// getAccountByURI is a package internal form of .GetAccountByURI() that doesn't bother dereferencing featured posts on update.
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func (d *Dereferencer) getAccountByURI(ctx context.Context, requestUser string, uri *url.URL) (*gtsmodel.Account, ap.Accountable, error) {
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var (
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account *gtsmodel.Account
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uriStr = uri.String()
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err error
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)
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// Search the database for existing account with URI.
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account, err = d.state.DB.GetAccountByURI(
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// request a barebones object, it may be in the
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// db but with related models not yet dereferenced.
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gtscontext.SetBarebones(ctx),
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uriStr,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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return nil, nil, gtserror.Newf("error checking database for account %s by uri: %w", uriStr, err)
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}
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if account == nil {
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// Else, search the database for existing by URL.
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account, err = d.state.DB.GetAccountByURL(
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gtscontext.SetBarebones(ctx),
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uriStr,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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return nil, nil, gtserror.Newf("error checking database for account %s by url: %w", uriStr, err)
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}
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}
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if account == nil {
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// Ensure that this is isn't a search for a local account.
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if uri.Host == config.GetHost() || uri.Host == config.GetAccountDomain() {
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return nil, nil, gtserror.SetUnretrievable(err) // this will be db.ErrNoEntries
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}
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// Create and pass-through a new bare-bones model for dereferencing.
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return d.enrichAccountSafely(ctx, requestUser, uri, >smodel.Account{
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ID: id.NewULID(),
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Domain: uri.Host,
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URI: uriStr,
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}, nil)
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}
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if accountFresh(account, nil) {
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// This is an existing account that is up-to-date,
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// before returning ensure it is fully populated.
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if err := d.state.DB.PopulateAccount(ctx, account); err != nil {
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log.Errorf(ctx, "error populating existing account: %v", err)
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}
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return account, nil, nil
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}
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// Try to update existing account model.
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latest, accountable, err := d.enrichAccountSafely(ctx,
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requestUser,
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uri,
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account,
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nil,
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)
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if err != nil {
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log.Errorf(ctx, "error enriching remote account: %v", err)
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// Fallback to existing.
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return account, nil, nil
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}
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return latest, accountable, nil
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}
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// GetAccountByUsernameDomain will attempt to fetch an accounts by its username@domain, first checking the database. In the case of a newly-met remote model,
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// or a remote model whose last_fetched date is beyond a certain interval, the account will be dereferenced. In the case of dereferencing, some low-priority
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// account information may be enqueued for asynchronous fetching, e.g. featured account statuses (pins). An ActivityPub object indicates the account was dereferenced.
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func (d *Dereferencer) GetAccountByUsernameDomain(ctx context.Context, requestUser string, username string, domain string) (*gtsmodel.Account, ap.Accountable, error) {
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account, accountable, err := d.getAccountByUsernameDomain(
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ctx,
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requestUser,
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username,
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domain,
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)
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if err != nil {
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return nil, nil, err
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}
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if accountable != nil {
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// This account was updated, enqueue re-dereference featured posts.
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d.state.Workers.Federator.MustEnqueueCtx(ctx, func(ctx context.Context) {
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if err := d.dereferenceAccountFeatured(ctx, requestUser, account); err != nil {
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log.Errorf(ctx, "error fetching account featured collection: %v", err)
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}
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})
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}
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return account, accountable, nil
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}
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// getAccountByUsernameDomain is a package internal form of
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// GetAccountByUsernameDomain() that doesn't bother deref of featured posts.
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func (d *Dereferencer) getAccountByUsernameDomain(
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ctx context.Context,
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requestUser string,
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username string,
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domain string,
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) (*gtsmodel.Account, ap.Accountable, error) {
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if domain == config.GetHost() || domain == config.GetAccountDomain() {
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// We do local lookups using an empty domain,
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// else it will fail the db search below.
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domain = ""
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}
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// Search the database for existing account with USERNAME@DOMAIN.
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account, err := d.state.DB.GetAccountByUsernameDomain(
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// request a barebones object, it may be in the
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// db but with related models not yet dereferenced.
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gtscontext.SetBarebones(ctx),
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username, domain,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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return nil, nil, gtserror.Newf("error checking database for account %s@%s: %w", username, domain, err)
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}
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if account == nil {
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if domain == "" {
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// failed local lookup, will be db.ErrNoEntries.
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return nil, nil, gtserror.SetUnretrievable(err)
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}
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// Create and pass-through a new bare-bones model for dereferencing.
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account, accountable, err := d.enrichAccountSafely(ctx, requestUser, nil, >smodel.Account{
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ID: id.NewULID(),
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Domain: domain,
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Username: username,
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}, nil)
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if err != nil {
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return nil, nil, err
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}
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return account, accountable, nil
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}
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// Try to update existing account model.
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latest, accountable, err := d.RefreshAccount(ctx,
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requestUser,
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account,
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nil,
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nil,
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)
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if err != nil {
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// Fallback to existing.
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return account, nil, nil //nolint
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}
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if accountable == nil {
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// This is existing up-to-date account, ensure it is populated.
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if err := d.state.DB.PopulateAccount(ctx, latest); err != nil {
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log.Errorf(ctx, "error populating existing account: %v", err)
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}
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}
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return latest, accountable, nil
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}
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// RefreshAccount updates the given account if it's a
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// remote account, and considered stale / not fresh
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// based on Account.FetchedAt and desired freshness.
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//
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// An updated account model is returned, but in the
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// case of dereferencing, some low-priority account
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// info may be enqueued for asynchronous fetching,
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// e.g. featured account statuses (pins).
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//
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// An ActivityPub object indicates the account was
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// dereferenced (i.e. updated).
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func (d *Dereferencer) RefreshAccount(
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ctx context.Context,
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requestUser string,
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account *gtsmodel.Account,
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accountable ap.Accountable,
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window *FreshnessWindow,
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) (*gtsmodel.Account, ap.Accountable, error) {
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// If no incoming data is provided,
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// check whether account needs refresh.
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if accountable == nil &&
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accountFresh(account, window) {
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return account, nil, nil
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}
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// Parse the URI from account.
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uri, err := url.Parse(account.URI)
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if err != nil {
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return nil, nil, gtserror.Newf("invalid account uri %q: %w", account.URI, err)
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}
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// Try to update + deref passed account model.
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latest, accountable, err := d.enrichAccountSafely(ctx,
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requestUser,
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uri,
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account,
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accountable,
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)
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if err != nil {
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log.Errorf(ctx, "error enriching remote account: %v", err)
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return nil, nil, gtserror.Newf("error enriching remote account: %w", err)
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}
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if accountable != nil {
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// This account was updated, enqueue re-dereference featured posts.
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d.state.Workers.Federator.MustEnqueueCtx(ctx, func(ctx context.Context) {
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if err := d.dereferenceAccountFeatured(ctx, requestUser, latest); err != nil {
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log.Errorf(ctx, "error fetching account featured collection: %v", err)
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}
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})
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}
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return latest, accountable, nil
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}
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// RefreshAccountAsync enqueues the given account for
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// an asychronous update fetching, if it's a remote
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// account, and considered stale / not fresh based on
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// Account.FetchedAt and desired freshness.
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//
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// This is a more optimized form of manually enqueueing
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// .UpdateAccount() to the federation worker, since it
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// only enqueues update if necessary.
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func (d *Dereferencer) RefreshAccountAsync(
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ctx context.Context,
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requestUser string,
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account *gtsmodel.Account,
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accountable ap.Accountable,
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window *FreshnessWindow,
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) {
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// If no incoming data is provided,
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// check whether account needs refresh.
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if accountable == nil &&
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accountFresh(account, window) {
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return
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}
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// Parse the URI from account.
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uri, err := url.Parse(account.URI)
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if err != nil {
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log.Errorf(ctx, "invalid account uri %q: %v", account.URI, err)
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return
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}
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// Enqueue a worker function to enrich this account async.
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d.state.Workers.Federator.MustEnqueueCtx(ctx, func(ctx context.Context) {
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latest, accountable, err := d.enrichAccountSafely(ctx, requestUser, uri, account, accountable)
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if err != nil {
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log.Errorf(ctx, "error enriching remote account: %v", err)
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return
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}
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if accountable != nil {
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// This account was updated, enqueue re-dereference featured posts.
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if err := d.dereferenceAccountFeatured(ctx, requestUser, latest); err != nil {
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log.Errorf(ctx, "error fetching account featured collection: %v", err)
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}
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}
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})
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}
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// enrichAccountSafely wraps enrichAccount() to perform
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// it within the State{}.FedLocks mutexmap, which protects
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// dereferencing actions with per-URI mutex locks.
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func (d *Dereferencer) enrichAccountSafely(
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ctx context.Context,
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requestUser string,
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uri *url.URL,
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account *gtsmodel.Account,
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accountable ap.Accountable,
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) (*gtsmodel.Account, ap.Accountable, error) {
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// Noop if account suspended;
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// we don't want to deref it.
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if account.IsSuspended() {
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return account, nil, nil
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}
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// By default use account.URI
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// as the per-URI deref lock.
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var uriStr string
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if account.URI != "" {
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uriStr = account.URI
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} else {
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// No URI is set yet, instead generate a faux-one from user+domain.
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uriStr = "https://" + account.Domain + "/users/" + account.Username
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}
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// Acquire per-URI deref lock, wraping unlock
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// to safely defer in case of panic, while still
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// performing more granular unlocks when needed.
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unlock := d.state.FedLocks.Lock(uriStr)
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unlock = util.DoOnce(unlock)
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defer unlock()
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// Perform status enrichment with passed vars.
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latest, apubAcc, err := d.enrichAccount(ctx,
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requestUser,
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uri,
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account,
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accountable,
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)
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if gtserror.StatusCode(err) >= 400 {
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if account.IsNew() {
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// This was a new account enrich
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// attempt which failed before we
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// got to store it, so we can't
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// return anything useful.
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return nil, nil, err
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}
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// We had this account stored already
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// before this enrichment attempt.
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//
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// Update fetched_at to slow re-attempts
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// but don't return early. We can still
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// return the model we had stored already.
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account.FetchedAt = time.Now()
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if err := d.state.DB.UpdateAccount(ctx, account, "fetched_at"); err != nil {
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log.Error(ctx, "error updating %s fetched_at: %v", uriStr, err)
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}
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}
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// Unlock now
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// we're done.
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unlock()
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if errors.Is(err, db.ErrAlreadyExists) {
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// Ensure AP model isn't set,
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// otherwise this indicates WE
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// enriched the account.
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apubAcc = nil
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// DATA RACE! We likely lost out to another goroutine
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// in a call to db.Put(Account). Look again in DB by URI.
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latest, err = d.state.DB.GetAccountByURI(ctx, account.URI)
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if err != nil {
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err = gtserror.Newf("error getting account %s from database after race: %w", uriStr, err)
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}
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}
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return latest, apubAcc, err
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}
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|
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// enrichAccount will enrich the given account, whether a
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// new barebones model, or existing model from the database.
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// It handles necessary dereferencing, webfingering etc.
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func (d *Dereferencer) enrichAccount(
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ctx context.Context,
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requestUser string,
|
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uri *url.URL,
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account *gtsmodel.Account,
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apubAcc ap.Accountable,
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) (*gtsmodel.Account, ap.Accountable, error) {
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// Pre-fetch a transport for requesting username, used by later deref procedures.
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tsport, err := d.transportController.NewTransportForUsername(ctx, requestUser)
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if err != nil {
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return nil, nil, gtserror.Newf("couldn't create transport: %w", err)
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}
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|
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if account.Username != "" {
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// A username was provided so we can attempt a webfinger, this ensures up-to-date accountdomain info.
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accDomain, accURI, err := d.fingerRemoteAccount(ctx, tsport, account.Username, account.Domain)
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switch {
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case err != nil && account.URI == "":
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// This is a new account (to us) with username@domain
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// but failed webfinger, nothing more we can do.
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err := gtserror.Newf("error webfingering account: %w", err)
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return nil, nil, gtserror.SetUnretrievable(err)
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case err != nil:
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// Simply log this error and move on,
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// we already have an account URI.
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log.Errorf(ctx,
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"error webfingering[1] remote account %s@%s: %v",
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account.Username, account.Domain, err,
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)
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case err == nil && account.Domain != accDomain:
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// After webfinger, we now have correct account domain from which we can do a final DB check.
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alreadyAcc, err := d.state.DB.GetAccountByUsernameDomain(ctx, account.Username, accDomain)
|
|
if err != nil && !errors.Is(err, db.ErrNoEntries) {
|
|
return nil, nil, gtserror.Newf("db error getting account after webfinger: %w", err)
|
|
}
|
|
|
|
if alreadyAcc != nil {
|
|
// We had this account stored
|
|
// under discovered accountDomain.
|
|
//
|
|
// Proceed with this account.
|
|
account = alreadyAcc
|
|
}
|
|
|
|
// Whether we had the account or not, we
|
|
// now have webfinger info relevant to the
|
|
// account, so fallthrough to set webfinger
|
|
// info on either the account we just found,
|
|
// or the stub account we were passed.
|
|
fallthrough
|
|
|
|
case err == nil:
|
|
// Update account with latest info.
|
|
account.URI = accURI.String()
|
|
account.Domain = accDomain
|
|
uri = accURI
|
|
}
|
|
}
|
|
|
|
if uri == nil {
|
|
// No URI provided / found,
|
|
// must parse from account.
|
|
uri, err = url.Parse(account.URI)
|
|
if err != nil {
|
|
return nil, nil, gtserror.Newf(
|
|
"invalid uri %q: %w",
|
|
account.URI, gtserror.SetUnretrievable(err),
|
|
)
|
|
}
|
|
|
|
// Check URI scheme ahead of time for more useful errs.
|
|
if uri.Scheme != "http" && uri.Scheme != "https" {
|
|
err := errors.New("account URI scheme must be http or https")
|
|
return nil, nil, gtserror.Newf(
|
|
"invalid uri %q: %w",
|
|
account.URI, gtserror.SetUnretrievable(err),
|
|
)
|
|
}
|
|
}
|
|
|
|
/*
|
|
BY THIS POINT we must have an account URI set,
|
|
either provided, pinned to the account, or
|
|
obtained via webfinger call.
|
|
*/
|
|
|
|
// Check whether this account URI is a blocked domain / subdomain.
|
|
if blocked, err := d.state.DB.IsDomainBlocked(ctx, uri.Host); err != nil {
|
|
return nil, nil, gtserror.Newf("error checking blocked domain: %w", err)
|
|
} else if blocked {
|
|
return nil, nil, gtserror.Newf("%s is blocked", uri.Host)
|
|
}
|
|
|
|
// Mark deref+update handshake start.
|
|
d.startHandshake(requestUser, uri)
|
|
defer d.stopHandshake(requestUser, uri)
|
|
|
|
if apubAcc == nil {
|
|
// We were not given any (partial) ActivityPub
|
|
// version of this account as a parameter.
|
|
// Dereference latest version of the account.
|
|
rsp, err := tsport.Dereference(ctx, uri)
|
|
if err != nil {
|
|
err := gtserror.Newf("error dereferencing %s: %w", uri, err)
|
|
return nil, nil, gtserror.SetUnretrievable(err)
|
|
}
|
|
|
|
// Attempt to resolve ActivityPub acc from response.
|
|
apubAcc, err = ap.ResolveAccountable(ctx, rsp.Body)
|
|
|
|
// Tidy up now done.
|
|
_ = rsp.Body.Close()
|
|
|
|
if err != nil {
|
|
// ResolveAccountable will set gtserror.WrongType
|
|
// on the returned error, so we don't need to do it here.
|
|
err = gtserror.Newf("error resolving accountable %s: %w", uri, err)
|
|
return nil, nil, err
|
|
}
|
|
|
|
// Check whether input URI and final returned URI
|
|
// have changed (i.e. we followed some redirects).
|
|
if finalURIStr := rsp.Request.URL.String(); //
|
|
finalURIStr != uri.String() {
|
|
|
|
// NOTE: this URI check + database call is performed
|
|
// AFTER reading and closing response body, for performance.
|
|
//
|
|
// Check whether we have this account stored under *final* URI.
|
|
alreadyAcc, err := d.state.DB.GetAccountByURI(ctx, finalURIStr)
|
|
if err != nil && !errors.Is(err, db.ErrNoEntries) {
|
|
return nil, nil, gtserror.Newf("db error getting account after redirects: %w", err)
|
|
}
|
|
|
|
if alreadyAcc != nil {
|
|
// We had this account stored
|
|
// under discovered final URI.
|
|
//
|
|
// Proceed with this account.
|
|
account = alreadyAcc
|
|
}
|
|
|
|
// Update the input URI to
|
|
// the final determined URI
|
|
// for later URI checks.
|
|
uri = rsp.Request.URL
|
|
}
|
|
}
|
|
|
|
/*
|
|
BY THIS POINT we must have the ActivityPub
|
|
representation of the account, either provided,
|
|
or obtained via a dereference call.
|
|
*/
|
|
|
|
// Convert the dereferenced AP account object to our GTS model.
|
|
//
|
|
// We put this in the variable latestAcc because we might want
|
|
// to compare the provided account model with this fresh version,
|
|
// in order to check if anything changed since we last saw it.
|
|
latestAcc, err := d.converter.ASRepresentationToAccount(ctx,
|
|
apubAcc,
|
|
account.Domain,
|
|
)
|
|
if err != nil {
|
|
// ASRepresentationToAccount will set Malformed on the
|
|
// returned error, so we don't need to do it here.
|
|
err = gtserror.Newf("error converting accountable to gts model for account %s: %w", uri, err)
|
|
return nil, nil, err
|
|
}
|
|
|
|
if account.Username == "" {
|
|
// Assume the host from the
|
|
// ActivityPub representation.
|
|
id := ap.GetJSONLDId(apubAcc)
|
|
if id == nil {
|
|
return nil, nil, gtserror.New("no id property found on person, or id was not an iri")
|
|
}
|
|
|
|
// Get IRI host value.
|
|
accHost := id.Host
|
|
|
|
// No username was provided, so no webfinger was attempted earlier.
|
|
//
|
|
// Now we have a username we can attempt again, to ensure up-to-date
|
|
// accountDomain info. For this final attempt we should use the domain
|
|
// of the ID of the dereffed account, rather than the URI we were given.
|
|
//
|
|
// This avoids cases where we were given a URI like
|
|
// https://example.org/@someone@somewhere.else and we've been redirected
|
|
// from example.org to somewhere.else: we want to take somewhere.else
|
|
// as the accountDomain then, not the example.org we were redirected from.
|
|
latestAcc.Domain, _, err = d.fingerRemoteAccount(ctx,
|
|
tsport,
|
|
latestAcc.Username,
|
|
accHost,
|
|
)
|
|
if err != nil {
|
|
// Webfingering account still failed, so we're not certain
|
|
// what the accountDomain actually is. Exit here for safety.
|
|
return nil, nil, gtserror.Newf(
|
|
"error webfingering remote account %s@%s: %w",
|
|
latestAcc.Username, accHost, err,
|
|
)
|
|
}
|
|
}
|
|
|
|
if latestAcc.Domain == "" {
|
|
// Ensure we have a domain set by this point,
|
|
// otherwise it gets stored as a local user!
|
|
return nil, nil, gtserror.Newf("empty domain for %s", uri)
|
|
}
|
|
|
|
// Ensure the final parsed account URI / URL matches
|
|
// the input URI we fetched (or received) it as.
|
|
if expect := uri.String(); latestAcc.URI != expect &&
|
|
latestAcc.URL != expect {
|
|
return nil, nil, gtserror.Newf(
|
|
"dereferenced account uri %s does not match %s",
|
|
latestAcc.URI, expect,
|
|
)
|
|
}
|
|
|
|
/*
|
|
BY THIS POINT we have more or less a fullly-formed
|
|
representation of the target account, derived from
|
|
a combination of webfinger lookups and dereferencing.
|
|
Further fetching beyond this point is for peripheral
|
|
things like account avatar, header, emojis, stats.
|
|
*/
|
|
|
|
// Ensure internal db ID is
|
|
// set and update fetch time.
|
|
latestAcc.ID = account.ID
|
|
latestAcc.FetchedAt = time.Now()
|
|
|
|
// Ensure the account's avatar media is populated, passing in existing to check for chages.
|
|
if err := d.fetchRemoteAccountAvatar(ctx, tsport, account, latestAcc); err != nil {
|
|
log.Errorf(ctx, "error fetching remote avatar for account %s: %v", uri, err)
|
|
}
|
|
|
|
// Ensure the account's avatar media is populated, passing in existing to check for chages.
|
|
if err := d.fetchRemoteAccountHeader(ctx, tsport, account, latestAcc); err != nil {
|
|
log.Errorf(ctx, "error fetching remote header for account %s: %v", uri, err)
|
|
}
|
|
|
|
// Fetch the latest remote account emoji IDs used in account display name/bio.
|
|
if _, err = d.fetchRemoteAccountEmojis(ctx, latestAcc, requestUser); err != nil {
|
|
log.Errorf(ctx, "error fetching remote emojis for account %s: %v", uri, err)
|
|
}
|
|
|
|
// Fetch followers/following count for this account.
|
|
if err := d.fetchRemoteAccountStats(ctx, latestAcc, requestUser); err != nil {
|
|
log.Errorf(ctx, "error fetching remote stats for account %s: %v", uri, err)
|
|
}
|
|
|
|
if account.IsNew() {
|
|
// Prefer published/created time from
|
|
// apubAcc, fall back to FetchedAt value.
|
|
if latestAcc.CreatedAt.IsZero() {
|
|
latestAcc.CreatedAt = latestAcc.FetchedAt
|
|
}
|
|
|
|
// Set time of update from the last-fetched date.
|
|
latestAcc.UpdatedAt = latestAcc.FetchedAt
|
|
|
|
// This is new, put it in the database.
|
|
err := d.state.DB.PutAccount(ctx, latestAcc)
|
|
if err != nil {
|
|
return nil, nil, gtserror.Newf("error putting in database: %w", err)
|
|
}
|
|
} else {
|
|
// Prefer published time from apubAcc,
|
|
// fall back to previous stored value.
|
|
if latestAcc.CreatedAt.IsZero() {
|
|
latestAcc.CreatedAt = account.CreatedAt
|
|
}
|
|
|
|
// Set time of update from the last-fetched date.
|
|
latestAcc.UpdatedAt = latestAcc.FetchedAt
|
|
|
|
// This is an existing account, update the model in the database.
|
|
if err := d.state.DB.UpdateAccount(ctx, latestAcc); err != nil {
|
|
return nil, nil, gtserror.Newf("error updating database: %w", err)
|
|
}
|
|
}
|
|
|
|
return latestAcc, apubAcc, nil
|
|
}
|
|
|
|
func (d *Dereferencer) fetchRemoteAccountAvatar(ctx context.Context, tsport transport.Transport, existing, latestAcc *gtsmodel.Account) error {
|
|
if latestAcc.AvatarRemoteURL == "" {
|
|
// No avatar set on newest model, leave
|
|
// latest avatar attachment ID empty.
|
|
return nil
|
|
}
|
|
|
|
// By default we keep the previous media attachment ID. This will only
|
|
// be changed if and when we have the new media loaded into storage.
|
|
latestAcc.AvatarMediaAttachmentID = existing.AvatarMediaAttachmentID
|
|
|
|
// If we had a media attachment ID already, and the URL
|
|
// of the attachment hasn't changed from existing -> latest,
|
|
// then we may be able to just keep our existing attachment
|
|
// without having to make any remote calls.
|
|
if latestAcc.AvatarMediaAttachmentID != "" &&
|
|
existing.AvatarRemoteURL == latestAcc.AvatarRemoteURL {
|
|
|
|
// Ensure we have media attachment with the known ID.
|
|
media, err := d.state.DB.GetAttachmentByID(ctx, existing.AvatarMediaAttachmentID)
|
|
if err != nil && !errors.Is(err, db.ErrNoEntries) {
|
|
return gtserror.Newf("error getting attachment %s: %w", existing.AvatarMediaAttachmentID, err)
|
|
}
|
|
|
|
// Ensure attachment has correct properties.
|
|
if media != nil && media.RemoteURL == latestAcc.AvatarRemoteURL {
|
|
// We already have the most up-to-date
|
|
// media attachment, keep using it.
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// If we reach here, we know we need to fetch the most
|
|
// up-to-date version of the attachment from remote.
|
|
|
|
// Parse and validate the newly provided media URL.
|
|
avatarURI, err := url.Parse(latestAcc.AvatarRemoteURL)
|
|
if err != nil {
|
|
return gtserror.Newf("error parsing url %s: %w", latestAcc.AvatarRemoteURL, err)
|
|
}
|
|
|
|
// Acquire lock for derefs map.
|
|
unlock := d.state.FedLocks.Lock(latestAcc.AvatarRemoteURL)
|
|
unlock = util.DoOnce(unlock)
|
|
defer unlock()
|
|
|
|
// Look for an existing dereference in progress.
|
|
processing, ok := d.derefAvatars[latestAcc.AvatarRemoteURL]
|
|
|
|
if !ok {
|
|
// Set the media data function to dereference avatar from URI.
|
|
data := func(ctx context.Context) (io.ReadCloser, int64, error) {
|
|
return tsport.DereferenceMedia(ctx, avatarURI)
|
|
}
|
|
|
|
// Create new media processing request from the media manager instance.
|
|
processing = d.mediaManager.PreProcessMedia(data, latestAcc.ID, &media.AdditionalMediaInfo{
|
|
Avatar: func() *bool { v := true; return &v }(),
|
|
RemoteURL: &latestAcc.AvatarRemoteURL,
|
|
})
|
|
|
|
// Store media in map to mark as processing.
|
|
d.derefAvatars[latestAcc.AvatarRemoteURL] = processing
|
|
|
|
defer func() {
|
|
// On exit safely remove media from map.
|
|
unlock := d.state.FedLocks.Lock(latestAcc.AvatarRemoteURL)
|
|
delete(d.derefAvatars, latestAcc.AvatarRemoteURL)
|
|
unlock()
|
|
}()
|
|
}
|
|
|
|
// Unlock map.
|
|
unlock()
|
|
|
|
// Start media attachment loading (blocking call).
|
|
if _, err := processing.LoadAttachment(ctx); err != nil {
|
|
return gtserror.Newf("error loading attachment %s: %w", latestAcc.AvatarRemoteURL, err)
|
|
}
|
|
|
|
// Set the newly loaded avatar media attachment ID.
|
|
latestAcc.AvatarMediaAttachmentID = processing.AttachmentID()
|
|
|
|
return nil
|
|
}
|
|
|
|
func (d *Dereferencer) fetchRemoteAccountHeader(ctx context.Context, tsport transport.Transport, existing, latestAcc *gtsmodel.Account) error {
|
|
if latestAcc.HeaderRemoteURL == "" {
|
|
// No header set on newest model, leave
|
|
// latest header attachment ID empty.
|
|
return nil
|
|
}
|
|
|
|
// By default we keep the previous media attachment ID. This will only
|
|
// be changed if and when we have the new media loaded into storage.
|
|
latestAcc.HeaderMediaAttachmentID = existing.HeaderMediaAttachmentID
|
|
|
|
// If we had a media attachment ID already, and the URL
|
|
// of the attachment hasn't changed from existing -> latest,
|
|
// then we may be able to just keep our existing attachment
|
|
// without having to make any remote calls.
|
|
if latestAcc.HeaderMediaAttachmentID != "" &&
|
|
existing.HeaderRemoteURL == latestAcc.HeaderRemoteURL {
|
|
|
|
// Ensure we have media attachment with the known ID.
|
|
media, err := d.state.DB.GetAttachmentByID(ctx, existing.HeaderMediaAttachmentID)
|
|
if err != nil && !errors.Is(err, db.ErrNoEntries) {
|
|
return gtserror.Newf("error getting attachment %s: %w", existing.HeaderMediaAttachmentID, err)
|
|
}
|
|
|
|
// Ensure attachment has correct properties.
|
|
if media != nil && media.RemoteURL == latestAcc.HeaderRemoteURL {
|
|
// We already have the most up-to-date
|
|
// media attachment, keep using it.
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// If we reach here, we know we need to fetch the most
|
|
// up-to-date version of the attachment from remote.
|
|
|
|
// Parse and validate the newly provided media URL.
|
|
headerURI, err := url.Parse(latestAcc.HeaderRemoteURL)
|
|
if err != nil {
|
|
return gtserror.Newf("error parsing url %s: %w", latestAcc.HeaderRemoteURL, err)
|
|
}
|
|
|
|
// Acquire lock for derefs map.
|
|
unlock := d.state.FedLocks.Lock(latestAcc.HeaderRemoteURL)
|
|
unlock = util.DoOnce(unlock)
|
|
defer unlock()
|
|
|
|
// Look for an existing dereference in progress.
|
|
processing, ok := d.derefHeaders[latestAcc.HeaderRemoteURL]
|
|
|
|
if !ok {
|
|
// Set the media data function to dereference avatar from URI.
|
|
data := func(ctx context.Context) (io.ReadCloser, int64, error) {
|
|
return tsport.DereferenceMedia(ctx, headerURI)
|
|
}
|
|
|
|
// Create new media processing request from the media manager instance.
|
|
processing = d.mediaManager.PreProcessMedia(data, latestAcc.ID, &media.AdditionalMediaInfo{
|
|
Header: func() *bool { v := true; return &v }(),
|
|
RemoteURL: &latestAcc.HeaderRemoteURL,
|
|
})
|
|
|
|
// Store media in map to mark as processing.
|
|
d.derefHeaders[latestAcc.HeaderRemoteURL] = processing
|
|
|
|
defer func() {
|
|
// On exit safely remove media from map.
|
|
unlock := d.state.FedLocks.Lock(latestAcc.HeaderRemoteURL)
|
|
delete(d.derefHeaders, latestAcc.HeaderRemoteURL)
|
|
unlock()
|
|
}()
|
|
}
|
|
|
|
// Unlock map.
|
|
unlock()
|
|
|
|
// Start media attachment loading (blocking call).
|
|
if _, err := processing.LoadAttachment(ctx); err != nil {
|
|
return gtserror.Newf("error loading attachment %s: %w", latestAcc.HeaderRemoteURL, err)
|
|
}
|
|
|
|
// Set the newly loaded avatar media attachment ID.
|
|
latestAcc.HeaderMediaAttachmentID = processing.AttachmentID()
|
|
|
|
return nil
|
|
}
|
|
|
|
func (d *Dereferencer) fetchRemoteAccountEmojis(ctx context.Context, targetAccount *gtsmodel.Account, requestingUsername string) (bool, error) {
|
|
maybeEmojis := targetAccount.Emojis
|
|
maybeEmojiIDs := targetAccount.EmojiIDs
|
|
|
|
// It's possible that the account had emoji IDs set on it, but not Emojis
|
|
// themselves, depending on how it was fetched before being passed to us.
|
|
//
|
|
// If we only have IDs, fetch the emojis from the db. We know they're in
|
|
// there or else they wouldn't have IDs.
|
|
if len(maybeEmojiIDs) > len(maybeEmojis) {
|
|
maybeEmojis = make([]*gtsmodel.Emoji, 0, len(maybeEmojiIDs))
|
|
for _, emojiID := range maybeEmojiIDs {
|
|
maybeEmoji, err := d.state.DB.GetEmojiByID(ctx, emojiID)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
maybeEmojis = append(maybeEmojis, maybeEmoji)
|
|
}
|
|
}
|
|
|
|
// For all the maybe emojis we have, we either fetch them from the database
|
|
// (if we haven't already), or dereference them from the remote instance.
|
|
gotEmojis, err := d.populateEmojis(ctx, maybeEmojis, requestingUsername)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
// Extract the ID of each fetched or dereferenced emoji, so we can attach
|
|
// this to the account if necessary.
|
|
gotEmojiIDs := make([]string, 0, len(gotEmojis))
|
|
for _, e := range gotEmojis {
|
|
gotEmojiIDs = append(gotEmojiIDs, e.ID)
|
|
}
|
|
|
|
var (
|
|
changed = false // have the emojis for this account changed?
|
|
maybeLen = len(maybeEmojis)
|
|
gotLen = len(gotEmojis)
|
|
)
|
|
|
|
// if the length of everything is zero, this is simple:
|
|
// nothing has changed and there's nothing to do
|
|
if maybeLen == 0 && gotLen == 0 {
|
|
return changed, nil
|
|
}
|
|
|
|
// if the *amount* of emojis on the account has changed, then the got emojis
|
|
// are definitely different from the previous ones (if there were any) --
|
|
// the account has either more or fewer emojis set on it now, so take the
|
|
// discovered emojis as the new correct ones.
|
|
if maybeLen != gotLen {
|
|
changed = true
|
|
targetAccount.Emojis = gotEmojis
|
|
targetAccount.EmojiIDs = gotEmojiIDs
|
|
return changed, nil
|
|
}
|
|
|
|
// if the lengths are the same but not all of the slices are
|
|
// zero, something *might* have changed, so we have to check
|
|
|
|
// 1. did we have emojis before that we don't have now?
|
|
for _, maybeEmoji := range maybeEmojis {
|
|
var stillPresent bool
|
|
|
|
for _, gotEmoji := range gotEmojis {
|
|
if maybeEmoji.URI == gotEmoji.URI {
|
|
// the emoji we maybe had is still present now,
|
|
// so we can stop checking gotEmojis
|
|
stillPresent = true
|
|
break
|
|
}
|
|
}
|
|
|
|
if !stillPresent {
|
|
// at least one maybeEmoji is no longer present in
|
|
// the got emojis, so we can stop checking now
|
|
changed = true
|
|
targetAccount.Emojis = gotEmojis
|
|
targetAccount.EmojiIDs = gotEmojiIDs
|
|
return changed, nil
|
|
}
|
|
}
|
|
|
|
// 2. do we have emojis now that we didn't have before?
|
|
for _, gotEmoji := range gotEmojis {
|
|
var wasPresent bool
|
|
|
|
for _, maybeEmoji := range maybeEmojis {
|
|
// check emoji IDs here as well, because unreferenced
|
|
// maybe emojis we didn't already have would not have
|
|
// had IDs set on them yet
|
|
if gotEmoji.URI == maybeEmoji.URI && gotEmoji.ID == maybeEmoji.ID {
|
|
// this got emoji was present already in the maybeEmoji,
|
|
// so we can stop checking through maybeEmojis
|
|
wasPresent = true
|
|
break
|
|
}
|
|
}
|
|
|
|
if !wasPresent {
|
|
// at least one gotEmojis was not present in
|
|
// the maybeEmojis, so we can stop checking now
|
|
changed = true
|
|
targetAccount.Emojis = gotEmojis
|
|
targetAccount.EmojiIDs = gotEmojiIDs
|
|
return changed, nil
|
|
}
|
|
}
|
|
|
|
return changed, nil
|
|
}
|
|
|
|
func (d *Dereferencer) fetchRemoteAccountStats(ctx context.Context, account *gtsmodel.Account, requestUser string) error {
|
|
// Ensure we have a stats model for this account.
|
|
if account.Stats == nil {
|
|
if err := d.state.DB.PopulateAccountStats(ctx, account); err != nil {
|
|
return gtserror.Newf("db error getting account stats: %w", err)
|
|
}
|
|
}
|
|
|
|
// We want to update stats by getting remote
|
|
// followers/following/statuses counts for
|
|
// this account.
|
|
//
|
|
// If we fail getting any particular stat,
|
|
// it will just fall back to counting local.
|
|
|
|
// Followers first.
|
|
if count, err := d.countCollection(
|
|
ctx,
|
|
account.FollowersURI,
|
|
requestUser,
|
|
); err != nil {
|
|
// Log this but don't bail.
|
|
log.Warnf(ctx,
|
|
"couldn't count followers for @%s@%s: %v",
|
|
account.Username, account.Domain, err,
|
|
)
|
|
} else if count > 0 {
|
|
// Positive integer is useful!
|
|
account.Stats.FollowersCount = &count
|
|
}
|
|
|
|
// Now following.
|
|
if count, err := d.countCollection(
|
|
ctx,
|
|
account.FollowingURI,
|
|
requestUser,
|
|
); err != nil {
|
|
// Log this but don't bail.
|
|
log.Warnf(ctx,
|
|
"couldn't count following for @%s@%s: %v",
|
|
account.Username, account.Domain, err,
|
|
)
|
|
} else if count > 0 {
|
|
// Positive integer is useful!
|
|
account.Stats.FollowingCount = &count
|
|
}
|
|
|
|
// Now statuses count.
|
|
if count, err := d.countCollection(
|
|
ctx,
|
|
account.OutboxURI,
|
|
requestUser,
|
|
); err != nil {
|
|
// Log this but don't bail.
|
|
log.Warnf(ctx,
|
|
"couldn't count statuses for @%s@%s: %v",
|
|
account.Username, account.Domain, err,
|
|
)
|
|
} else if count > 0 {
|
|
// Positive integer is useful!
|
|
account.Stats.StatusesCount = &count
|
|
}
|
|
|
|
// Update stats now.
|
|
if err := d.state.DB.UpdateAccountStats(
|
|
ctx,
|
|
account.Stats,
|
|
"followers_count",
|
|
"following_count",
|
|
"statuses_count",
|
|
); err != nil {
|
|
return gtserror.Newf("db error updating account stats: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// countCollection parses the given uriStr,
|
|
// dereferences the result as a collection
|
|
// type, and returns total items as 0, or
|
|
// a positive integer, or -1 if total items
|
|
// cannot be counted.
|
|
//
|
|
// Error will be returned for invalid non-empty
|
|
// URIs or dereferencing isses.
|
|
func (d *Dereferencer) countCollection(
|
|
ctx context.Context,
|
|
uriStr string,
|
|
requestUser string,
|
|
) (int, error) {
|
|
if uriStr == "" {
|
|
return -1, nil
|
|
}
|
|
|
|
uri, err := url.Parse(uriStr)
|
|
if err != nil {
|
|
return -1, err
|
|
}
|
|
|
|
collect, err := d.dereferenceCollection(ctx, requestUser, uri)
|
|
if err != nil {
|
|
return -1, err
|
|
}
|
|
|
|
return collect.TotalItems(), nil
|
|
}
|
|
|
|
// dereferenceAccountFeatured dereferences an account's featuredCollectionURI (if not empty). For each discovered status, this status will
|
|
// be dereferenced (if necessary) and marked as pinned (if necessary). Then, old pins will be removed if they're not included in new pins.
|
|
func (d *Dereferencer) dereferenceAccountFeatured(ctx context.Context, requestUser string, account *gtsmodel.Account) error {
|
|
uri, err := url.Parse(account.FeaturedCollectionURI)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
collect, err := d.dereferenceCollection(ctx, requestUser, uri)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Get previous pinned statuses (we'll need these later).
|
|
wasPinned, err := d.state.DB.GetAccountPinnedStatuses(ctx, account.ID)
|
|
if err != nil && !errors.Is(err, db.ErrNoEntries) {
|
|
return gtserror.Newf("error getting account pinned statuses: %w", err)
|
|
}
|
|
|
|
var statusURIs []*url.URL
|
|
|
|
for {
|
|
// Get next collect item.
|
|
item := collect.NextItem()
|
|
if item == nil {
|
|
break
|
|
}
|
|
|
|
// Check for available IRI.
|
|
itemIRI, _ := pub.ToId(item)
|
|
if itemIRI == nil {
|
|
continue
|
|
}
|
|
|
|
if itemIRI.Host != uri.Host {
|
|
// If this status doesn't share a host with its featured
|
|
// collection URI, we shouldn't trust it. Just move on.
|
|
continue
|
|
}
|
|
|
|
// Already append this status URI to our slice.
|
|
// We do this here so that even if we can't get
|
|
// the status in the next part for some reason,
|
|
// we still know it was *meant* to be pinned.
|
|
statusURIs = append(statusURIs, itemIRI)
|
|
|
|
// Search for status by URI. Note this may return an existing model
|
|
// we have stored with an error from attempted update, so check both.
|
|
status, _, _, err := d.getStatusByURI(ctx, requestUser, itemIRI)
|
|
if err != nil {
|
|
log.Errorf(ctx, "error getting status from featured collection %s: %v", itemIRI, err)
|
|
|
|
if status == nil {
|
|
// This is only unactionable
|
|
// if no status was returned.
|
|
continue
|
|
}
|
|
}
|
|
|
|
// If the status was already pinned,
|
|
// we don't need to do anything.
|
|
if !status.PinnedAt.IsZero() {
|
|
continue
|
|
}
|
|
|
|
if status.AccountURI != account.URI {
|
|
// Someone's pinned a status that doesn't
|
|
// belong to them, this doesn't work for us.
|
|
continue
|
|
}
|
|
|
|
if status.BoostOfID != "" {
|
|
// Someone's pinned a boost. This
|
|
// also doesn't work for us. (note
|
|
// we check using BoostOfID since
|
|
// BoostOfURI isn't *always* set).
|
|
continue
|
|
}
|
|
|
|
// All conditions are met for this status to
|
|
// be pinned, so we can finally update it.
|
|
status.PinnedAt = time.Now()
|
|
if err := d.state.DB.UpdateStatus(ctx, status, "pinned_at"); err != nil {
|
|
log.Errorf(ctx, "error updating status in featured collection %s: %v", status.URI, err)
|
|
continue
|
|
}
|
|
}
|
|
|
|
// Now that we know which statuses are pinned, we should
|
|
// *unpin* previous pinned statuses that aren't included.
|
|
outerLoop:
|
|
for _, status := range wasPinned {
|
|
for _, statusURI := range statusURIs {
|
|
if status.URI == statusURI.String() {
|
|
// This status is included in most recent
|
|
// pinned uris. No need to keep checking.
|
|
continue outerLoop
|
|
}
|
|
}
|
|
|
|
// Status was pinned before, but is not included
|
|
// in most recent pinned uris, so unpin it now.
|
|
status.PinnedAt = time.Time{}
|
|
if err := d.state.DB.UpdateStatus(ctx, status, "pinned_at"); err != nil {
|
|
log.Errorf(ctx, "error unpinning status %s: %v", status.URI, err)
|
|
continue
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|