1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
package fetchers
import (
"encoding/json"
"fmt"
"llostre/auth"
"llostre/general"
"llostre/notes"
"time"
)
func FetchAppBskyFeedPosts(conf *Config, did, pdsURL string, session *auth.OAuthState) ([]notes.Note, error) {
// get author of the note
author, found := conf.Cache.GetAuthor(did)
var err error
if !found {
author, err = FetchAppBskyActorProfile(conf, did, pdsURL, session)
}
if err != nil {
return nil, err
}
// try slingshot first if given
if notes.IsPublic(author) && conf.SlingshotURL != "" && general.SlingshotAvailable() {
records, err := general.FetchRawRecordCollection(conf.Logger, did, "app.bsky.feed.post", conf.SlingshotURL, session)
if err != nil {
conf.Logger.Error("fetching from slingshot failed, falling back to PDS")
general.SetSlingshotBackoff(5 * time.Minute)
} else {
return parseAppBskyFeedPostCollection(conf, session, records, author)
}
}
records, err := general.FetchRawRecordCollection(conf.Logger, did, "app.bsky.feed.post", pdsURL, session)
if err != nil {
return nil, err
}
return parseAppBskyFeedPostCollection(conf, session, records, author)
}
func FetchAppBskyFeedPostsWithCursor(conf *Config, did, pdsURL string, session *auth.OAuthState, cursor string) ([]notes.Note, error) {
author, found := conf.Cache.GetAuthor(did)
var err error
if !found {
author, err = FetchAppBskyActorProfile(conf, did, pdsURL, session)
}
if err != nil {
return nil, err
}
if conf.SlingshotURL != "" && general.SlingshotAvailable() {
records, nextCursor, err := general.FetchRawRecordCollectionWithCursor(conf.Logger, did, "app.bsky.feed.post", conf.SlingshotURL, session, cursor, conf.PageSize)
if err != nil {
conf.Logger.Error("fetching from slingshot failed, falling back to PDS")
general.SetSlingshotBackoff(5 * time.Minute)
} else {
notes, err := parseAppBskyFeedPostCollection(conf, session, records, author)
conf.Cache.SetCursor(did, nextCursor)
updatePostCount(conf, did, cursor, len(notes))
return notes, err
}
}
records, nextCursor, err := general.FetchRawRecordCollectionWithCursor(conf.Logger, did, "app.bsky.feed.post", pdsURL, session, cursor, conf.PageSize)
if err != nil {
return nil, err
}
notes, err := parseAppBskyFeedPostCollection(conf, session, records, author)
conf.Cache.SetCursor(did, nextCursor)
updatePostCount(conf, did, cursor, len(notes))
return notes, err
}
func updatePostCount(conf *Config, did, cursor string, fetchedCount int) {
if cursor == "" {
conf.Cache.SetPostCount(did, fetchedCount)
} else {
conf.Cache.AddPostCount(did, fetchedCount)
}
}
func GetAppBskyFeedPostByURI(conf *Config, uri string, session *auth.OAuthState) (*notes.Note, error) {
// check cache, return if it was cached without auth or if it was cached with auth and we have auth
conf.Logger.Debug("Getting app.bsky.feed.post", "uri", uri)
if cached, found := conf.Cache.Get(uri); found {
conf.Logger.Debug("Found in the cache", "public", !cached.AuthorNoUnauth)
if !cached.AuthorNoUnauth {
return cached, nil
}
// author requires auth
// if we have a session, serve it
// if the token was invalid, trust that it would have been caught by the "refresh token" call in main
if session != nil {
return cached, nil
}
}
return FetchAppBskyFeedPostByURI(conf, uri, session)
}
func FetchAppBskyFeedPostByURI(conf *Config, uri string, session *auth.OAuthState) (*notes.Note, error) {
repo, _, _, err := general.ParseURI(uri)
// need to resolve DID to PDS
pdsURL, err := FetchPDS(repo)
if err != nil {
return nil, err
}
conf.Logger.Debug("fetched origin PDS", "did", repo, "pdsURL", pdsURL)
// get author of the note
author, found := conf.Cache.GetAuthor(repo)
if !found {
author, err = FetchAppBskyActorProfile(conf, repo, pdsURL, session)
}
if err != nil {
return nil, err
}
// try slingshot first if given
if conf.SlingshotURL != "" && general.SlingshotAvailable() {
rawRecord, err := general.FetchRawRecordByURI(conf.Logger, uri, conf.SlingshotURL, session)
if err != nil {
conf.Logger.Error("fetching from slingshot failed", "error", err)
general.SetSlingshotBackoff(5 * time.Minute)
} else {
return parseAppBskyFeedPostRecord(rawRecord, author, conf)
}
}
rawRecord, err := general.FetchRawRecordByURI(conf.Logger, uri, pdsURL, session)
if err != nil {
conf.Logger.Error("Fetching from PDS failed")
return nil, err
}
return parseAppBskyFeedPostRecord(rawRecord, author, conf)
}
func parseAppBskyFeedPostRecord(rawRecord *general.RawRecord, author *notes.Author, conf *Config) (*notes.Note, error) {
if rawRecord == nil {
return nil, fmt.Errorf("unable to parse nil record")
}
record := notes.AppBskyFeedPostRecord{
URI: rawRecord.URI,
}
err := json.Unmarshal(rawRecord.Value, &record.Value)
if err != nil {
return nil, err
}
note, err := notes.NoteFromAppBskyFeedPostRecord(record, author, conf.PorxieURL)
if err != nil {
return nil, err
}
// cache it
conf.Cache.Set(note.URI, note)
if len(note.Media) > 0 {
conf.Logger.Debug("parsed note", "uri", note.URI, "media_count", len(note.Media), "embed", record.Value.Embed)
}
return note, nil
}
func parseAppBskyFeedPostCollection(conf *Config, session *auth.OAuthState, records []general.RawRecord, author *notes.Author) ([]notes.Note, error) {
posts := make([]notes.Note, 0, len(records))
for _, record := range records {
note, err := parseAppBskyFeedPostRecord(&record, author, conf)
if err != nil {
conf.Logger.Error("failed to parse post record", "error", err)
continue
}
if note.ReplyTo != nil {
parents, err := FetchParents(conf, *note.ReplyTo, session, 10)
if err != nil {
conf.Logger.Warn("failed to fetch parent chain", "uri", note.URI, "error", err)
}
note.Parents = parents
}
conf.Cache.Set(note.URI, note)
posts = append(posts, *note)
}
return posts, nil
}
func FetchParents(conf *Config, replyToURI string, session *auth.OAuthState, maxDepth int) ([]notes.Note, error) {
parents := []notes.Note{}
currentURI := replyToURI
for currentURI != "" {
note, err := GetAppBskyFeedPostByURI(conf, currentURI, session)
if err != nil {
conf.Logger.Warn("failed to fetch parent", "uri", currentURI, "error", err)
note = notes.MissingNote(
|
