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package main
import (
"encoding/json"
"fmt"
"slices"
"strings"
)
type PostMeta struct {
ID string `json:"id"`
Type string `json:"type"`
Actor string `json:"actor"`
To StringOrArray `json:"to"`
CC StringOrArray `json:"cc"`
Object NoteMeta `json:"object"`
}
type PostMetaWithContext struct {
Context []ContextElement `json:"@context"`
PostMeta
}
type LDSignature struct {
Type string `json:"type"`
Creator string `json:"creator"`
Created string `json:"created"`
Value string `json:"signatureValue"`
}
type NoteMetaWithContext struct {
Context []ContextElement `json:"@context"`
NoteMeta
}
type Tag struct {
Type string `json:"type"`
Href string `json:"href"`
Name string `json:"name"`
}
func AtToMention(atstring string) *Tag {
withoutAt := strings.TrimPrefix(atstring, "@")
parts := strings.SplitN(withoutAt, "@", 2)
if len(parts) == 2 {
c, err := NewHTTPClient("GET", "https://"+parts[1]+"/.well-known/webfinger?resource=acct:"+withoutAt, nil)
if err != nil {
return nil
}
if body, err := c.DoClear(); err == nil {
wfr := &WebFingerResponse{}
if err := json.Unmarshal([]byte(body), wfr); err == nil {
for _, link := range wfr.Links {
if link.Rel == "self" {
return &Tag{
Type: "Mention",
Name: atstring,
Href: link.Href,
}
}
}
}
}
}
return nil
}
func ExtractMentions(content string) []*Tag {
mentions := []*Tag{}
words := strings.Fields(content)
for _, word := range words {
if strings.HasPrefix(word, "@") {
if mention := AtToMention(word); mention != nil {
mentions = append(mentions, mention)
}
}
}
return mentions
}
func (user *User) PostMessage(note NoteMeta) {
user.wlock.Lock()
user.posts = append(user.posts, FromNote(CacheId(user, "notes", "", note.ID), user, user.ID, ¬e))
slices.SortFunc(user.posts, ComparePost)
slices.Reverse(user.posts)
user.wlock.Unlock()
item := PostMetaWithContext{}
item.Context = []ContextElement{
{Simple: StringOrArray{"https://www.w3.org/ns/activitystreams"}},
{Complex: map[string]string{"ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount"}},
}
item.Object = note
item.To = note.To
item.CC = note.CC
item.Type = "Create"
item.Actor = user.ID
item.ID = note.ID + "/activity"
if data, err := json.Marshal(item); err == nil {
CacheData(user, "outbox", "create", item.ID, data)
go func() {
for _, cc := range item.CC {
if actor, err := user.fetchActorInfo(cc, false); err == nil {
fmt.Printf("[action] sending activity from %v to %s\n", user.ID, actor.Inbox)
if err := postSigned(user, data, actor.Inbox); err != nil {
fmt.Printf("[error] could not publish activity to %s: %s", actor.Inbox, err)
}
}
}
for _, follower := range user.followers {
fmt.Printf("[action] sending activity from %v to %s\n", user.ID, follower.Inbox)
if err := postSigned(user, data, follower.Inbox); err != nil {
fmt.Printf("[error] could not publish activity to %s: %s", follower.Inbox, err)
}
}
}()
}
}
// Send a like to the provided inbox
func (user *User) SendLike(object string, inbox string) error {
fmt.Printf("[action] sending like from %v\n", user.ID)
item := InboxRequestBasicWithContext{}
item.Object = object
item.Type = "Like"
item.Actor = user.ID
item.Context = []string{"https://www.w3.org/ns/activitystreams"}
if data, err := json.Marshal(item); err == nil {
// note we store the likes by the object id (not the activity id)
CacheData(user, "outbox", "likes", object, data)
return postSigned(user, data, inbox)
} else {
return err
}
}
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