forked from mirrors/gotosocial
216 lines
8 KiB
Go
216 lines
8 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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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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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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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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*/
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package processing
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import (
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"context"
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"fmt"
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"net/url"
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"strings"
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"github.com/sirupsen/logrus"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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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/oauth"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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func (p *processor) SearchGet(ctx context.Context, authed *oauth.Auth, searchQuery *apimodel.SearchQuery) (*apimodel.SearchResult, gtserror.WithCode) {
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l := p.log.WithFields(logrus.Fields{
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"func": "SearchGet",
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"query": searchQuery.Query,
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})
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results := &apimodel.SearchResult{
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Accounts: []apimodel.Account{},
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Statuses: []apimodel.Status{},
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Hashtags: []apimodel.Tag{},
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}
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foundAccounts := []*gtsmodel.Account{}
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foundStatuses := []*gtsmodel.Status{}
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// foundHashtags := []*gtsmodel.Tag{}
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// convert the query to lowercase and trim leading/trailing spaces
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query := strings.ToLower(strings.TrimSpace(searchQuery.Query))
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var foundOne bool
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// check if the query is something like @whatever_username@example.org -- this means it's a remote account
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if !foundOne && util.IsMention(searchQuery.Query) {
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l.Debug("search term is a mention, looking it up...")
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foundAccount, err := p.searchAccountByMention(ctx, authed, searchQuery.Query, searchQuery.Resolve)
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if err == nil && foundAccount != nil {
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foundAccounts = append(foundAccounts, foundAccount)
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foundOne = true
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l.Debug("got an account by searching by mention")
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}
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}
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// check if the query is a URI and just do a lookup for that, straight up
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if uri, err := url.Parse(query); err == nil && !foundOne {
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// 1. check if it's a status
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if foundStatus, err := p.searchStatusByURI(ctx, authed, uri, searchQuery.Resolve); err == nil && foundStatus != nil {
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foundStatuses = append(foundStatuses, foundStatus)
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foundOne = true
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l.Debug("got a status by searching by URI")
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}
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// 2. check if it's an account
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if foundAccount, err := p.searchAccountByURI(ctx, authed, uri, searchQuery.Resolve); err == nil && foundAccount != nil {
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foundAccounts = append(foundAccounts, foundAccount)
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foundOne = true
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l.Debug("got an account by searching by URI")
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}
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}
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if !foundOne {
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// we haven't found anything yet so search for text now
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l.Debug("nothing found by mention or by URI, will fall back to searching by text now")
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}
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/*
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FROM HERE ON we have our search results, it's just a matter of filtering them according to what this user is allowed to see,
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and then converting them into our frontend format.
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*/
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for _, foundAccount := range foundAccounts {
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// make sure there's no block in either direction between the account and the requester
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if blocked, err := p.db.IsBlocked(ctx, authed.Account.ID, foundAccount.ID, true); err == nil && !blocked {
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// all good, convert it and add it to the results
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if acctMasto, err := p.tc.AccountToMastoPublic(ctx, foundAccount); err == nil && acctMasto != nil {
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results.Accounts = append(results.Accounts, *acctMasto)
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}
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}
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}
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for _, foundStatus := range foundStatuses {
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if visible, err := p.filter.StatusVisible(ctx, foundStatus, authed.Account); !visible || err != nil {
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continue
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}
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statusMasto, err := p.tc.StatusToMasto(ctx, foundStatus, authed.Account)
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if err != nil {
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continue
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}
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results.Statuses = append(results.Statuses, *statusMasto)
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}
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return results, nil
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}
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func (p *processor) searchStatusByURI(ctx context.Context, authed *oauth.Auth, uri *url.URL, resolve bool) (*gtsmodel.Status, error) {
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l := p.log.WithFields(logrus.Fields{
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"func": "searchStatusByURI",
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"uri": uri.String(),
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"resolve": resolve,
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})
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if maybeStatus, err := p.db.GetStatusByURI(ctx, uri.String()); err == nil {
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return maybeStatus, nil
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} else if maybeStatus, err := p.db.GetStatusByURL(ctx, uri.String()); err == nil {
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return maybeStatus, nil
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}
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// we don't have it locally so dereference it if we're allowed to
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if resolve {
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status, _, _, err := p.federator.GetRemoteStatus(ctx, authed.Account.Username, uri, true, true)
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if err == nil {
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if err := p.federator.DereferenceRemoteThread(ctx, authed.Account.Username, uri); err != nil {
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// try to deref the thread while we're here
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l.Debugf("searchStatusByURI: error dereferencing remote thread: %s", err)
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}
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return status, nil
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}
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}
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return nil, nil
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}
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func (p *processor) searchAccountByURI(ctx context.Context, authed *oauth.Auth, uri *url.URL, resolve bool) (*gtsmodel.Account, error) {
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if maybeAccount, err := p.db.GetAccountByURI(ctx, uri.String()); err == nil {
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return maybeAccount, nil
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} else if maybeAccount, err := p.db.GetAccountByURL(ctx, uri.String()); err == nil {
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return maybeAccount, nil
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}
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if resolve {
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// we don't have it locally so try and dereference it
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account, _, err := p.federator.GetRemoteAccount(ctx, authed.Account.Username, uri, true)
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if err != nil {
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return nil, fmt.Errorf("searchAccountByURI: error dereferencing account with uri %s: %s", uri.String(), err)
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}
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return account, nil
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}
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return nil, nil
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}
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func (p *processor) searchAccountByMention(ctx context.Context, authed *oauth.Auth, mention string, resolve bool) (*gtsmodel.Account, error) {
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// query is for a remote account
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username, domain, err := util.ExtractMentionParts(mention)
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if err != nil {
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return nil, fmt.Errorf("searchAccountByMention: error extracting mention parts: %s", err)
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}
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// if it's a local account we can skip a whole bunch of stuff
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maybeAcct := >smodel.Account{}
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if domain == p.config.Host {
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maybeAcct, err = p.db.GetLocalAccountByUsername(ctx, username)
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if err != nil {
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return nil, fmt.Errorf("searchAccountByMention: error getting local account by username: %s", err)
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}
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return maybeAcct, nil
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}
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// it's not a local account so first we'll check if it's in the database already...
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where := []db.Where{
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{Key: "username", Value: username, CaseInsensitive: true},
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{Key: "domain", Value: domain, CaseInsensitive: true},
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}
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err = p.db.GetWhere(ctx, where, maybeAcct)
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if err == nil {
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// we've got it stored locally already!
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return maybeAcct, nil
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}
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if err != db.ErrNoEntries {
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// if it's not errNoEntries there's been a real database error so bail at this point
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return nil, fmt.Errorf("searchAccountByMention: database error: %s", err)
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}
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// we got a db.ErrNoEntries, so we just don't have the account locally stored -- check if we can dereference it
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if resolve {
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// we're allowed to resolve it so let's try
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// first we need to webfinger the remote account to convert the username and domain into the activitypub URI for the account
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acctURI, err := p.federator.FingerRemoteAccount(ctx, authed.Account.Username, username, domain)
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if err != nil {
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// something went wrong doing the webfinger lookup so we can't process the request
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return nil, fmt.Errorf("searchAccountByMention: error fingering remote account with username %s and domain %s: %s", username, domain, err)
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}
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// we don't have it locally so try and dereference it
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account, _, err := p.federator.GetRemoteAccount(ctx, authed.Account.Username, acctURI, true)
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if err != nil {
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return nil, fmt.Errorf("searchAccountByMention: error dereferencing account with uri %s: %s", acctURI.String(), err)
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}
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return account, nil
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}
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return nil, nil
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}
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