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relay_retraction.go
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/
relay_retraction.go
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package jobs
//
// GangGo Application Server
// Copyright (C) 2017 Lukas Matt <lukas@zauberstuhl.de>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import (
"crypto/rsa"
"github.com/revel/revel"
"git.feneas.org/ganggo/ganggo/app/models"
federation "git.feneas.org/ganggo/federation"
run "github.com/revel/modules/jobs/app/jobs"
"git.feneas.org/ganggo/federation/helpers"
)
func (dispatcher *Dispatcher) RelayRetraction(entity federation.MessageRetract) {
var persons []models.Person
var serializedPrivateKey string
var public bool
switch entity.ParentType() {
case federation.Reshare:
var post models.Post
err := post.FindByGuid(entity.ParentGuid())
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
if user, ok := post.IsLocal(); ok {
public = post.Public
serializedPrivateKey = user.SerializedPrivateKey
entity.SetAuthor(user.Person.Author)
persons, err = dispatcher.findRecipients(&post, &user)
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
}
case federation.StatusMessage:
var post models.Post
err := post.FindByGuid(entity.ParentGuid())
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
if user, ok := post.IsLocal(); ok {
public = post.Public
serializedPrivateKey = user.SerializedPrivateKey
entity.SetAuthor(user.Person.Author)
persons, err = dispatcher.findRecipients(&post, &user)
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
}
case federation.Comment:
var comment models.Comment
err := comment.FindByGuid(entity.ParentGuid())
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
post, user, _ := comment.ParentPostUser()
public = post.Public
serializedPrivateKey = user.SerializedPrivateKey
entity.SetAuthor(user.Person.Author)
persons, err = dispatcher.findRecipients(post, user)
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
case federation.Like:
var like models.Like
err := like.FindByGuid(entity.ParentGuid())
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
post, user, _ := like.ParentPostUser()
public = post.Public
serializedPrivateKey = user.SerializedPrivateKey
entity.SetAuthor(user.Person.Author)
persons, err = dispatcher.findRecipients(post, user)
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
default:
revel.AppLog.Error("Unkown TargetType in Dispatcher",
"retraction", entity)
return
}
priv, err := helpers.ParseRSAPrivateKey([]byte(serializedPrivateKey))
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
return
}
for _, person := range persons {
if entity.Type().Proto != person.Pod.Protocol {
// not supported
revel.AppLog.Debug("Dispatcher RelayRetraction skipping cross protocol")
continue
}
endpoint := person.Inbox
var pub *rsa.PublicKey = nil
if !public {
pub, err = helpers.ParseRSAPublicKey(
[]byte(person.SerializedPublicKey))
if err != nil {
revel.AppLog.Error("Dispatcher RelayRetraction", err.Error(), err)
continue
}
} else if person.Pod.Inbox != "" {
// pod inbox if available
endpoint = person.Pod.Inbox
}
// send and retry if it fails the first time
run.Now(RetryOnFail{
Pod: &person.Pod,
Send: func() error {
return entity.Send(endpoint, priv, pub)
},
})
}
}