100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 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 transport
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import (
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"bytes"
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"context"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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"sync"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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)
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func (t *transport) BatchDeliver(ctx context.Context, b []byte, recipients []*url.URL) error {
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// concurrently deliver to recipients; for each delivery, buffer the error if it fails
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wg := sync.WaitGroup{}
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errCh := make(chan error, len(recipients))
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for _, recipient := range recipients {
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wg.Add(1)
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go func(r *url.URL) {
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defer wg.Done()
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if err := t.Deliver(ctx, b, r); err != nil {
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errCh <- err
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}
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}(recipient)
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}
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// wait until all deliveries have succeeded or failed
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wg.Wait()
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// receive any buffered errors
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errs := make([]string, 0, len(recipients))
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outer:
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for {
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select {
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case e := <-errCh:
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errs = append(errs, e.Error())
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default:
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break outer
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}
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}
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if len(errs) > 0 {
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return fmt.Errorf("BatchDeliver: at least one failure: %s", strings.Join(errs, "; "))
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}
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return nil
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}
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func (t *transport) Deliver(ctx context.Context, b []byte, to *url.URL) error {
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// if the 'to' host is our own, just skip this delivery since we by definition already have the message!
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if to.Host == config.GetHost() || to.Host == config.GetAccountDomain() {
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return nil
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}
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urlStr := to.String()
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req, err := http.NewRequestWithContext(ctx, "POST", urlStr, bytes.NewReader(b))
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if err != nil {
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return err
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}
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req.Header.Add("Content-Type", "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"")
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req.Header.Add("Accept-Charset", "utf-8")
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req.Header.Add("User-Agent", t.controller.userAgent)
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req.Header.Set("Host", to.Host)
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resp, err := t.POST(req, b)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if code := resp.StatusCode; code != http.StatusOK &&
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code != http.StatusCreated && code != http.StatusAccepted {
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return fmt.Errorf("POST request to %s failed (%d): %s", urlStr, resp.StatusCode, resp.Status)
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}
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return nil
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}
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