GoToSocial/internal/transport/deliver.go

207 lines
5.1 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package transport
import (
"context"
"encoding/json"
"net/http"
"net/url"
"codeberg.org/gruf/go-byteutil"
apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/httpclient"
"github.com/superseriousbusiness/gotosocial/internal/transport/delivery"
)
func (t *transport) BatchDeliver(ctx context.Context, obj map[string]interface{}, recipients []*url.URL) error {
var (
// accumulated delivery reqs.
reqs []*delivery.Delivery
// accumulated preparation errs.
errs gtserror.MultiError
// Get current instance host info.
domain = config.GetAccountDomain()
host = config.GetHost()
)
// Marshal object as JSON.
b, err := json.Marshal(obj)
if err != nil {
return gtserror.Newf("error marshaling json: %w", err)
}
// Extract object IDs.
actID := getActorID(obj)
objID := getObjectID(obj)
tgtID := getTargetID(obj)
for _, to := range recipients {
// Skip delivery to recipient if it is "us".
if to.Host == host || to.Host == domain {
continue
}
// Prepare http client request.
req, err := t.prepare(ctx,
actID,
objID,
tgtID,
b,
to,
)
if err != nil {
errs.Append(err)
continue
}
// Append to request queue.
reqs = append(reqs, req)
}
// Push prepared request list to the delivery queue.
t.controller.state.Workers.Delivery.Queue.Push(reqs...)
// Return combined err.
return errs.Combine()
}
func (t *transport) Deliver(ctx context.Context, obj map[string]interface{}, to *url.URL) error {
// if 'to' host is our own, skip as we don't need to deliver to ourselves...
if to.Host == config.GetHost() || to.Host == config.GetAccountDomain() {
return nil
}
// Marshal object as JSON.
b, err := json.Marshal(obj)
if err != nil {
return gtserror.Newf("error marshaling json: %w", err)
}
// Prepare http client request.
req, err := t.prepare(ctx,
getActorID(obj),
getObjectID(obj),
getTargetID(obj),
b,
to,
)
if err != nil {
return err
}
// Push prepared request to the delivery queue.
t.controller.state.Workers.Delivery.Queue.Push(req)
return nil
}
// prepare will prepare a POST http.Request{}
// to recipient at 'to', wrapping in a queued
// request object with signing function.
func (t *transport) prepare(
ctx context.Context,
actorID string,
objectID string,
targetID string,
data []byte,
to *url.URL,
) (
*delivery.Delivery,
error,
) {
url := to.String()
// Use rewindable reader for body.
var body byteutil.ReadNopCloser
body.Reset(data)
// Prepare POST signer.
sign := t.signPOST(data)
// Update to-be-used request context with signing details.
ctx = gtscontext.SetOutgoingPublicKeyID(ctx, t.pubKeyID)
ctx = gtscontext.SetHTTPClientSignFunc(ctx, sign)
// Prepare a new request with data body directed at URL.
r, err := http.NewRequestWithContext(ctx, "POST", url, &body)
if err != nil {
return nil, gtserror.Newf("error preparing request: %w", err)
}
// Set the standard ActivityPub content-type + charset headers.
r.Header.Add("Content-Type", string(apiutil.AppActivityLDJSON))
r.Header.Add("Accept-Charset", "utf-8")
// Validate the request before queueing for delivery.
if err := httpclient.ValidateRequest(r); err != nil {
return nil, err
}
return &delivery.Delivery{
ActorID: actorID,
ObjectID: objectID,
TargetID: targetID,
Request: httpclient.WrapRequest(r),
}, nil
}
// getObjectID extracts an object ID from 'serialized' ActivityPub object map.
func getObjectID(obj map[string]interface{}) string {
switch t := obj["object"].(type) {
case string:
return t
case map[string]interface{}:
id, _ := t["id"].(string)
return id
default:
return ""
}
}
// getActorID extracts an actor ID from 'serialized' ActivityPub object map.
func getActorID(obj map[string]interface{}) string {
switch t := obj["actor"].(type) {
case string:
return t
case map[string]interface{}:
id, _ := t["id"].(string)
return id
default:
return ""
}
}
// getTargetID extracts a target ID from 'serialized' ActivityPub object map.
func getTargetID(obj map[string]interface{}) string {
switch t := obj["target"].(type) {
case string:
return t
case map[string]interface{}:
id, _ := t["id"].(string)
return id
default:
return ""
}
}