activity.go (view raw)
1//
2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
3//
4// Permission to use, copy, modify, and distribute this software for any
5// purpose with or without fee is hereby granted, provided that the above
6// copyright notice and this permission notice appear in all copies.
7//
8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15
16package main
17
18import (
19 "bytes"
20 "context"
21 "crypto/tls"
22 "database/sql"
23 "fmt"
24 "html"
25 "io"
26 notrand "math/rand"
27 "net/http"
28 "os"
29 "regexp"
30 "strings"
31 "time"
32
33 "humungus.tedunangst.com/r/webs/gate"
34 "humungus.tedunangst.com/r/webs/gencache"
35 "humungus.tedunangst.com/r/webs/httpsig"
36 "humungus.tedunangst.com/r/webs/junk"
37 "humungus.tedunangst.com/r/webs/templates"
38)
39
40var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
41var thefakename = `application/activity+json`
42var falsenames = []string{
43 `application/ld+json`,
44 `application/activity+json`,
45}
46
47const itiswhatitis = "https://www.w3.org/ns/activitystreams"
48const thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
49const tinyworld = "as:Public"
50const chatKeyProp = "chatKeyV0"
51
52var fastTimeout time.Duration = 5
53var slowTimeout time.Duration = 30
54
55func friendorfoe(ct string) bool {
56 ct = strings.ToLower(ct)
57 for _, at := range falsenames {
58 if strings.HasPrefix(ct, at) {
59 return true
60 }
61 }
62 return false
63}
64
65var honkTransport = http.Transport{
66 MaxIdleConns: 120,
67 MaxConnsPerHost: 4,
68}
69
70var honkClient = http.Client{
71 Transport: &honkTransport,
72}
73
74func gogglesDoNothing() {
75 honkTransport.TLSClientConfig = &tls.Config{
76 InsecureSkipVerify: true,
77 }
78}
79
80func PostJunk(keyname string, key httpsig.PrivateKey, url string, j junk.Junk) error {
81 return PostMsg(keyname, key, url, j.ToBytes())
82}
83
84func PostMsg(keyname string, key httpsig.PrivateKey, url string, msg []byte) error {
85 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
86 if err != nil {
87 return err
88 }
89 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
90 req.Header.Set("Content-Type", theonetruename)
91 httpsig.SignRequest(keyname, key, req, msg)
92 ctx, cancel := context.WithTimeout(context.Background(), 2*slowTimeout*time.Second)
93 defer cancel()
94 req = req.WithContext(ctx)
95 resp, err := honkClient.Do(req)
96 if err != nil {
97 return err
98 }
99 defer resp.Body.Close()
100 switch resp.StatusCode {
101 case 200:
102 case 201:
103 case 202:
104 default:
105 var buf [4096]byte
106 n, _ := resp.Body.Read(buf[:])
107 dlog.Printf("post failure message: %s", buf[:n])
108 return fmt.Errorf("http post status: %d", resp.StatusCode)
109 }
110 ilog.Printf("successful post: %s %d", url, resp.StatusCode)
111 return nil
112}
113
114func GetJunk(userid int64, url string) (junk.Junk, error) {
115 return GetJunkTimeout(userid, url, slowTimeout*time.Second, nil)
116}
117
118func GetJunkFast(userid int64, url string) (junk.Junk, error) {
119 return GetJunkTimeout(userid, url, fastTimeout*time.Second, nil)
120}
121
122func GetJunkHardMode(userid int64, url string) (junk.Junk, error) {
123 j, err := GetJunk(userid, url)
124 if err != nil {
125 emsg := err.Error()
126 if emsg == "http get status: 429" || emsg == "http get status: 502" ||
127 strings.Contains(emsg, "timeout") {
128 ilog.Printf("trying %s again after error: %s", url, emsg)
129 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
130 j, err = GetJunk(userid, url)
131 if err != nil {
132 ilog.Printf("still couldn't get %s", url)
133 } else {
134 ilog.Printf("retry success!")
135 }
136 }
137 }
138 return j, err
139}
140
141var flightdeck = gate.NewSerializer()
142
143func GetJunkTimeout(userid int64, url string, timeout time.Duration, final *string) (junk.Junk, error) {
144 if rejectorigin(userid, url, false) {
145 return nil, fmt.Errorf("rejected origin: %s", url)
146 }
147 if final != nil {
148 *final = url
149 }
150 sign := func(req *http.Request) error {
151 ki := ziggy(userid)
152 if ki != nil {
153 httpsig.SignRequest(ki.keyname, ki.seckey, req, nil)
154 }
155 return nil
156 }
157 if develMode {
158 sign = nil
159 }
160 client := honkClient
161 client.CheckRedirect = func(req *http.Request, via []*http.Request) error {
162 if len(via) >= 5 {
163 return fmt.Errorf("stopped after 5 redirects")
164 }
165 if final != nil {
166 *final = req.URL.String()
167 }
168 if sign != nil {
169 sign(req)
170 }
171 return nil
172 }
173 fn := func() (interface{}, error) {
174 at := theonetruename
175 if strings.Contains(url, ".well-known/webfinger?resource") {
176 at = "application/jrd+json"
177 }
178 j, err := getsomejunk(url, junk.GetArgs{
179 Accept: at,
180 Agent: "honksnonk/5.0; " + serverName,
181 Timeout: timeout,
182 Client: &client,
183 Fixup: sign,
184 Limit: 1 * 1024 * 1024,
185 })
186 return j, err
187 }
188
189 ji, err := flightdeck.Call(url, fn)
190 if err != nil {
191 return nil, err
192 }
193 j := ji.(junk.Junk)
194 return j, nil
195}
196
197func getsomejunk(url string, args junk.GetArgs) (junk.Junk, error) {
198 client := http.DefaultClient
199 if args.Client != nil {
200 client = args.Client
201 }
202 req, err := http.NewRequest("GET", url, nil)
203 if err != nil {
204 return nil, err
205 }
206 if args.Accept != "" {
207 req.Header.Set("Accept", args.Accept)
208 }
209 if args.Agent != "" {
210 req.Header.Set("User-Agent", args.Agent)
211 }
212 if args.Fixup != nil {
213 err = args.Fixup(req)
214 if err != nil {
215 return nil, err
216 }
217 }
218 if args.Timeout != 0 {
219 ctx, cancel := context.WithTimeout(context.Background(), args.Timeout)
220 defer cancel()
221 req = req.WithContext(ctx)
222 }
223 resp, err := client.Do(req)
224 if err != nil {
225 return nil, err
226 }
227 defer resp.Body.Close()
228
229 switch resp.StatusCode {
230 case 200:
231 case 201:
232 case 202:
233 default:
234 return nil, fmt.Errorf("http get status: %d", resp.StatusCode)
235 }
236 ct := resp.Header.Get("Content-Type")
237 if !friendorfoe(ct) {
238 return nil, fmt.Errorf("incompatible content type %s", ct)
239 }
240 var r io.Reader = resp.Body
241 if args.Limit > 0 {
242 r = io.LimitReader(r, args.Limit)
243 }
244 return junk.Read(r)
245}
246
247func fetchsome(url string) ([]byte, error) {
248 req, err := http.NewRequest("GET", url, nil)
249 if err != nil {
250 ilog.Printf("error fetching %s: %s", url, err)
251 return nil, err
252 }
253 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
254 ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
255 defer cancel()
256 req = req.WithContext(ctx)
257 resp, err := honkClient.Do(req)
258 if err != nil {
259 ilog.Printf("error fetching %s: %s", url, err)
260 return nil, err
261 }
262 defer resp.Body.Close()
263 switch resp.StatusCode {
264 case 200:
265 case 201:
266 case 202:
267 default:
268 return nil, fmt.Errorf("http get not 200: %d %s", resp.StatusCode, url)
269 }
270 var buf bytes.Buffer
271 limiter := io.LimitReader(resp.Body, 14*1024*1024)
272 io.Copy(&buf, limiter)
273 return buf.Bytes(), nil
274}
275
276func savedonk(url string, name, desc, media string, localize bool) *Donk {
277 if url == "" {
278 return nil
279 }
280 if donk := finddonk(url); donk != nil {
281 return donk
282 }
283 ilog.Printf("saving donk: %s", url)
284 data := []byte{}
285 if localize {
286 fn := func() (interface{}, error) {
287 return fetchsome(url)
288 }
289 ii, err := flightdeck.Call(url, fn)
290 if err != nil {
291 ilog.Printf("error fetching donk: %s", err)
292 localize = false
293 goto saveit
294 }
295 data = ii.([]byte)
296
297 if len(data) == 10*1024*1024 {
298 ilog.Printf("truncation likely")
299 }
300 if strings.HasPrefix(media, "image") {
301 img, err := shrinkit(data)
302 if err != nil {
303 ilog.Printf("unable to decode image: %s", err)
304 localize = false
305 data = []byte{}
306 goto saveit
307 }
308 data = img.Data
309 media = "image/" + img.Format
310 } else if media == "application/pdf" {
311 if len(data) > 1000000 {
312 ilog.Printf("not saving large pdf")
313 localize = false
314 data = []byte{}
315 }
316 } else if len(data) > 100000 {
317 ilog.Printf("not saving large attachment")
318 localize = false
319 data = []byte{}
320 }
321 }
322saveit:
323 fileid, err := savefile(name, desc, url, media, localize, data)
324 if err != nil {
325 elog.Printf("error saving file %s: %s", url, err)
326 return nil
327 }
328 donk := new(Donk)
329 donk.FileID = fileid
330 return donk
331}
332
333func iszonked(userid int64, xid string) bool {
334 var id int64
335 row := stmtFindZonk.QueryRow(userid, xid)
336 err := row.Scan(&id)
337 if err == nil {
338 return true
339 }
340 if err != sql.ErrNoRows {
341 ilog.Printf("error querying zonk: %s", err)
342 }
343 return false
344}
345
346func needxonk(user *WhatAbout, x *Honk) bool {
347 if rejectxonk(x) {
348 return false
349 }
350 return needxonkid(user, x.XID)
351}
352func needbonkid(user *WhatAbout, xid string) bool {
353 return needxonkidX(user, xid, true)
354}
355func needxonkid(user *WhatAbout, xid string) bool {
356 return needxonkidX(user, xid, false)
357}
358func needxonkidX(user *WhatAbout, xid string, isannounce bool) bool {
359 if !strings.HasPrefix(xid, "https://") {
360 return false
361 }
362 if strings.HasPrefix(xid, user.URL+"/") {
363 return false
364 }
365 if rejectorigin(user.ID, xid, isannounce) {
366 ilog.Printf("rejecting origin: %s", xid)
367 return false
368 }
369 if iszonked(user.ID, xid) {
370 ilog.Printf("already zonked: %s", xid)
371 return false
372 }
373 var id int64
374 row := stmtFindXonk.QueryRow(user.ID, xid)
375 err := row.Scan(&id)
376 if err == nil {
377 return false
378 }
379 if err != sql.ErrNoRows {
380 ilog.Printf("error querying xonk: %s", err)
381 }
382 return true
383}
384
385func eradicatexonk(userid int64, xid string) {
386 xonk := getxonk(userid, xid)
387 if xonk != nil {
388 deletehonk(xonk.ID)
389 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
390 if err != nil {
391 elog.Printf("error eradicating: %s", err)
392 }
393 }
394}
395
396func savexonk(x *Honk) {
397 ilog.Printf("saving xonk: %s", x.XID)
398 go handles(x.Honker)
399 go handles(x.Oonker)
400 savehonk(x)
401}
402
403type Box struct {
404 In string
405 Out string
406 Shared string
407}
408
409var boxofboxes = gencache.New(gencache.Options[string, *Box]{Fill: func(ident string) (*Box, bool) {
410 var info string
411 row := stmtGetXonker.QueryRow(ident, "boxes")
412 err := row.Scan(&info)
413 if err != nil {
414 dlog.Printf("need to get boxes for %s", ident)
415 var j junk.Junk
416 j, err = GetJunk(readyLuserOne, ident)
417 if err != nil {
418 dlog.Printf("error getting boxes: %s", err)
419 return nil, false
420 }
421 allinjest(originate(ident), j)
422 row = stmtGetXonker.QueryRow(ident, "boxes")
423 err = row.Scan(&info)
424 }
425 if err == nil {
426 m := strings.Split(info, " ")
427 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
428 return b, true
429 }
430 return nil, false
431}})
432
433var gettergate = gate.NewLimiter(1)
434
435func getsomemore(user *WhatAbout, page string) {
436 time.Sleep(5 * time.Second)
437 gettergate.Start()
438 defer gettergate.Finish()
439 gimmexonks(user, page)
440}
441
442func gimmexonks(user *WhatAbout, outbox string) {
443 dlog.Printf("getting outbox: %s", outbox)
444 j, err := GetJunk(user.ID, outbox)
445 if err != nil {
446 ilog.Printf("error getting outbox: %s", err)
447 return
448 }
449 t, _ := j.GetString("type")
450 origin := originate(outbox)
451 if t == "OrderedCollection" || t == "CollectionPage" {
452 items, _ := j.GetArray("orderedItems")
453 if items == nil {
454 items, _ = j.GetArray("items")
455 }
456 if items == nil {
457 obj, ok := j.GetMap("first")
458 if ok {
459 items, _ = obj.GetArray("orderedItems")
460 } else {
461 page1, ok := j.GetString("first")
462 if ok {
463 j, err = GetJunk(user.ID, page1)
464 if err != nil {
465 ilog.Printf("error getting page1: %s", err)
466 return
467 }
468 items, _ = j.GetArray("orderedItems")
469 }
470 }
471 }
472 if len(items) > 20 {
473 items = items[0:20]
474 }
475 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
476 items[i], items[j] = items[j], items[i]
477 }
478 for _, item := range items {
479 obj, ok := item.(junk.Junk)
480 if ok {
481 xonksaver(user, obj, origin)
482 continue
483 }
484 xid, ok := item.(string)
485 if ok {
486 if !needxonkid(user, xid) {
487 continue
488 }
489 obj, err = GetJunk(user.ID, xid)
490 if err != nil {
491 ilog.Printf("error getting item: %s", err)
492 continue
493 }
494 xonksaver(user, obj, originate(xid))
495 }
496 }
497 }
498}
499
500func newphone(a []string, obj junk.Junk) []string {
501 for _, addr := range []string{"to", "cc", "attributedTo"} {
502 who, _ := obj.GetString(addr)
503 if who != "" {
504 a = append(a, who)
505 }
506 whos, _ := obj.GetArray(addr)
507 for _, w := range whos {
508 who, _ := w.(string)
509 if who != "" {
510 a = append(a, who)
511 }
512 }
513 }
514 return a
515}
516
517func extractattrto(obj junk.Junk) string {
518 arr := oneforall(obj, "attributedTo")
519 for _, a := range arr {
520 s, ok := a.(string)
521 if ok {
522 return s
523 }
524 o, ok := a.(junk.Junk)
525 if ok {
526 t, _ := o.GetString("type")
527 id, _ := o.GetString("id")
528 if t == "Person" || t == "" {
529 return id
530 }
531 }
532 }
533 return ""
534}
535
536func oneforall(obj junk.Junk, key string) []interface{} {
537 if val, ok := obj.GetMap(key); ok {
538 return []interface{}{val}
539 }
540 if str, ok := obj.GetString(key); ok {
541 return []interface{}{str}
542 }
543 arr, _ := obj.GetArray(key)
544 return arr
545}
546
547func firstofmany(obj junk.Junk, key string) string {
548 if val, _ := obj.GetString(key); val != "" {
549 return val
550 }
551 if arr, _ := obj.GetArray(key); len(arr) > 0 {
552 val, ok := arr[0].(string)
553 if ok {
554 return val
555 }
556 }
557 return ""
558}
559
560var re_mast0link = regexp.MustCompile(`https://[[:alnum:].]+/users/[[:alnum:]]+/statuses/[[:digit:]]+`)
561var re_masto1ink = regexp.MustCompile(`https://([[:alnum:].]+)/@([[:alnum:]]+)(@[[:alnum:].]+)?/([[:digit:]]+)`)
562var re_misslink = regexp.MustCompile(`https://[[:alnum:].]+/notes/[[:alnum:]]+`)
563var re_honklink = regexp.MustCompile(`https://[[:alnum:].]+/u/[[:alnum:]]+/h/[[:alnum:]]+`)
564var re_r0malink = regexp.MustCompile(`https://[[:alnum:].]+/objects/[[:alnum:]-]+`)
565var re_roma1ink = regexp.MustCompile(`https://[[:alnum:].]+/notice/[[:alnum:]]+`)
566var re_qtlinks = regexp.MustCompile(`>https://[^\s<]+<`)
567
568func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
569 depth := 0
570 maxdepth := 10
571 currenttid := ""
572 goingup := 0
573 var xonkxonkfn func(junk.Junk, string, bool, string) *Honk
574
575 qutify := func(user *WhatAbout, qurl, content string) string {
576 if depth >= maxdepth {
577 ilog.Printf("in too deep")
578 return content
579 }
580 // well this is gross
581 malcontent := strings.ReplaceAll(content, `</span><span class="ellipsis">`, "")
582 malcontent = strings.ReplaceAll(malcontent, `</span><span class="invisible">`, "")
583 mlinks := re_qtlinks.FindAllString(malcontent, -1)
584 if qurl != "" {
585 mlinks = append(mlinks, ">"+qurl+"<")
586 }
587 mlinks = oneofakind(mlinks)
588 for _, m := range mlinks {
589 tryit := false
590 m = m[1 : len(m)-1]
591 if re_mast0link.MatchString(m) || re_misslink.MatchString(m) ||
592 re_honklink.MatchString(m) || re_r0malink.MatchString(m) ||
593 re_roma1ink.MatchString(m) {
594 tryit = true
595 } else if re_masto1ink.MatchString(m) {
596 tryit = true
597 }
598 if tryit {
599 var prefix string
600 if m == qurl {
601 prefix += fmt.Sprintf("<p><a href=\"%s\">%s</a>", m, m)
602 }
603 var final string
604 if x := getxonk(user.ID, m); x != nil {
605 content = fmt.Sprintf("%s%s<blockquote>%s</blockquote>", content, prefix, x.Noise)
606 } else if j, err := GetJunkTimeout(user.ID, m, fastTimeout*time.Second, &final); err == nil {
607 q, ok := j.GetString("content")
608 if ok {
609 content = fmt.Sprintf("%s%s<blockquote>%s</blockquote>", content, prefix, q)
610 }
611 prevdepth := depth
612 depth = maxdepth
613 xonkxonkfn(j, originate(final), false, "")
614 depth = prevdepth
615 }
616 }
617 }
618 return content
619 }
620
621 saveonemore := func(xid string) {
622 dlog.Printf("getting onemore: %s", xid)
623 if depth >= maxdepth {
624 ilog.Printf("in too deep")
625 return
626 }
627 obj, err := GetJunkHardMode(user.ID, xid)
628 if err != nil {
629 ilog.Printf("error getting onemore: %s: %s", xid, err)
630 return
631 }
632 xonkxonkfn(obj, originate(xid), false, "")
633 }
634
635 xonkxonkfn = func(item junk.Junk, origin string, isUpdate bool, bonker string) *Honk {
636 id, _ := item.GetString("id")
637 what := firstofmany(item, "type")
638 dt, ok := item.GetString("published")
639 if !ok {
640 dt = time.Now().Format(time.RFC3339)
641 }
642 if depth >= maxdepth+5 {
643 ilog.Printf("went too deep in xonkxonk")
644 return nil
645 }
646 depth++
647 defer func() { depth-- }()
648
649 var err error
650 var xid, rid, url, convoy string
651 var replies []string
652 var obj junk.Junk
653 waspage := false
654 preferorig := false
655 switch what {
656 case "Delete":
657 obj, ok = item.GetMap("object")
658 if ok {
659 xid, _ = obj.GetString("id")
660 } else {
661 xid, _ = item.GetString("object")
662 }
663 if xid == "" {
664 return nil
665 }
666 if originate(xid) != origin {
667 ilog.Printf("forged delete: %s", xid)
668 return nil
669 }
670 ilog.Printf("eradicating %s", xid)
671 eradicatexonk(user.ID, xid)
672 return nil
673 case "Remove":
674 xid, _ = item.GetString("object")
675 targ, _ := obj.GetString("target")
676 ilog.Printf("remove %s from %s", obj, targ)
677 return nil
678 case "Tombstone":
679 xid, _ = item.GetString("id")
680 if xid == "" {
681 return nil
682 }
683 if originate(xid) != origin {
684 ilog.Printf("forged delete: %s", xid)
685 return nil
686 }
687 ilog.Printf("eradicating %s", xid)
688 eradicatexonk(user.ID, xid)
689 return nil
690 case "Announce":
691 obj, ok = item.GetMap("object")
692 if ok {
693 // peek ahead some
694 what := firstofmany(obj, "type")
695 if what == "Create" || what == "Update" {
696 if what == "Update" {
697 isUpdate = true
698 }
699 inner, ok := obj.GetMap("object")
700 if ok {
701 obj = inner
702 } else {
703 xid, _ = obj.GetString("object")
704 }
705 }
706 if xid == "" {
707 xid, _ = obj.GetString("id")
708 }
709 } else {
710 xid, _ = item.GetString("object")
711 }
712 if !isUpdate && !needbonkid(user, xid) {
713 return nil
714 }
715 bonker, _ = item.GetString("actor")
716 if originate(bonker) != origin {
717 ilog.Printf("out of bounds actor in bonk: %s not from %s", bonker, origin)
718 item.Write(ilog.Writer())
719 return nil
720 }
721 origin = originate(xid)
722 if ok && originate(id) == origin {
723 dlog.Printf("using object in announce for %s", xid)
724 } else {
725 dlog.Printf("getting bonk: %s", xid)
726 obj, err = GetJunkHardMode(user.ID, xid)
727 if err != nil {
728 ilog.Printf("error getting bonk: %s: %s", xid, err)
729 return nil
730 }
731 }
732 return xonkxonkfn(obj, origin, isUpdate, bonker)
733 case "Update":
734 isUpdate = true
735 fallthrough
736 case "Create":
737 obj, ok = item.GetMap("object")
738 if !ok {
739 xid, _ = item.GetString("object")
740 dlog.Printf("getting created honk: %s", xid)
741 if originate(xid) != origin {
742 ilog.Printf("out of bounds object in create: %s not from %s", xid, origin)
743 return nil
744 }
745 obj, err = GetJunkHardMode(user.ID, xid)
746 if err != nil {
747 ilog.Printf("error getting creation: %s", err)
748 }
749 }
750 if obj == nil {
751 ilog.Printf("no object for creation %s", id)
752 return nil
753 }
754 return xonkxonkfn(obj, origin, isUpdate, bonker)
755 case "Read":
756 xid, ok = item.GetString("object")
757 if ok {
758 if !needxonkid(user, xid) {
759 dlog.Printf("don't need read obj: %s", xid)
760 return nil
761 }
762 obj, err = GetJunkHardMode(user.ID, xid)
763 if err != nil {
764 ilog.Printf("error getting read: %s", err)
765 return nil
766 }
767 return xonkxonkfn(obj, originate(xid), false, "")
768 }
769 return nil
770 case "Add":
771 xid, ok = item.GetString("object")
772 if ok {
773 // check target...
774 if !needxonkid(user, xid) {
775 dlog.Printf("don't need added obj: %s", xid)
776 return nil
777 }
778 obj, err = GetJunkHardMode(user.ID, xid)
779 if err != nil {
780 ilog.Printf("error getting add: %s", err)
781 return nil
782 }
783 return xonkxonkfn(obj, originate(xid), false, "")
784 }
785 return nil
786 case "Move":
787 obj = item
788 what = "move"
789 case "Page":
790 waspage = true
791 fallthrough
792 case "Audio":
793 fallthrough
794 case "Image":
795 if what == "Image" {
796 preferorig = true
797 }
798 fallthrough
799 case "Video":
800 fallthrough
801 case "Question":
802 fallthrough
803 case "Note":
804 fallthrough
805 case "Article":
806 obj = item
807 what = "honk"
808 case "Event":
809 obj = item
810 what = "event"
811 case "ChatMessage":
812 bonker = ""
813 obj = item
814 what = "chonk"
815 default:
816 ilog.Printf("unknown activity: %s", what)
817 dumpactivity(item)
818 return nil
819 }
820 if bonker != "" {
821 what = "bonk"
822 }
823
824 if obj != nil {
825 xid, _ = obj.GetString("id")
826 }
827
828 if xid == "" {
829 ilog.Printf("don't know what xid is")
830 item.Write(ilog.Writer())
831 return nil
832 }
833 if originate(xid) != origin {
834 if !develMode && origin != "" {
835 ilog.Printf("original sin: %s not from %s", xid, origin)
836 item.Write(ilog.Writer())
837 return nil
838 }
839 }
840
841 var xonk Honk
842 // early init
843 xonk.XID = xid
844 xonk.UserID = user.ID
845 xonk.Honker, _ = item.GetString("actor")
846 if xonk.Honker == "" {
847 xonk.Honker = extractattrto(item)
848 }
849 if originate(xonk.Honker) != origin {
850 ilog.Printf("out of bounds honker %s from %s", xonk.Honker, origin)
851 item.Write(ilog.Writer())
852 return nil
853 }
854 if obj != nil {
855 if xonk.Honker == "" {
856 xonk.Honker = extractattrto(obj)
857 }
858 if bonker != "" {
859 xonk.Honker, xonk.Oonker = bonker, xonk.Honker
860 }
861 if xonk.Oonker == xonk.Honker {
862 xonk.Oonker = ""
863 }
864 xonk.Audience = newphone(nil, obj)
865 }
866 xonk.Audience = append(xonk.Audience, xonk.Honker)
867 xonk.Audience = oneofakind(xonk.Audience)
868 for i, a := range xonk.Audience {
869 if a == tinyworld {
870 xonk.Audience[i] = thewholeworld
871 }
872 }
873 xonk.Public = loudandproud(xonk.Audience)
874
875 var mentions []Mention
876 if obj != nil {
877 ot := firstofmany(obj, "type")
878 url, _ = obj.GetString("url")
879 if dt2, ok := obj.GetString("published"); ok {
880 dt = dt2
881 }
882 content, _ := obj.GetString("content")
883 if !strings.HasPrefix(content, "<p>") {
884 content = "<p>" + content
885 }
886 precis, _ := obj.GetString("summary")
887 if name, ok := obj.GetString("name"); ok {
888 if precis != "" {
889 content = precis + "<p>" + content
890 }
891 precis = html.EscapeString(name)
892 }
893 if sens, _ := obj["sensitive"].(bool); sens && precis == "" {
894 precis = "unspecified horror"
895 }
896 if waspage {
897 content += fmt.Sprintf(`<p><a href="%s">%s</a>`, url, url)
898 url = xid
899 }
900 if user.Options.InlineQuotes {
901 qurl, _ := obj.GetString("quoteUrl")
902 content = qutify(user, qurl, content)
903 }
904 rid, ok = obj.GetString("inReplyTo")
905 if !ok {
906 if robj, ok := obj.GetMap("inReplyTo"); ok {
907 rid, _ = robj.GetString("id")
908 }
909 }
910 convoy, _ = obj.GetString("context")
911 if convoy == "" {
912 convoy, _ = obj.GetString("conversation")
913 }
914 if ot == "Question" {
915 if what == "honk" {
916 what = "qonk"
917 }
918 content += "<ul>"
919 ans, _ := obj.GetArray("oneOf")
920 for _, ai := range ans {
921 a, ok := ai.(junk.Junk)
922 if !ok {
923 continue
924 }
925 as, _ := a.GetString("name")
926 content += "<li>" + as
927 }
928 ans, _ = obj.GetArray("anyOf")
929 for _, ai := range ans {
930 a, ok := ai.(junk.Junk)
931 if !ok {
932 continue
933 }
934 as, _ := a.GetString("name")
935 content += "<li>" + as
936 }
937 content += "</ul>"
938 }
939 if ot == "Move" {
940 targ, _ := obj.GetString("target")
941 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
942 }
943 if len(content) > 90001 {
944 ilog.Printf("content too long. truncating")
945 content = content[:90001]
946 }
947
948 xonk.Noise = content
949 xonk.Precis = precis
950 if rejectxonk(&xonk) {
951 dlog.Printf("fast reject: %s", xid)
952 return nil
953 }
954
955 numatts := 0
956 procatt := func(att junk.Junk) {
957 at, _ := att.GetString("type")
958 mt, _ := att.GetString("mediaType")
959 if mt == "" {
960 mt = "image"
961 }
962 u, ok := att.GetString("url")
963 if !ok {
964 u, ok = att.GetString("href")
965 }
966 if !ok {
967 if ua, ok := att.GetArray("url"); ok && len(ua) > 0 {
968 u, ok = ua[0].(string)
969 if !ok {
970 if uu, ok := ua[0].(junk.Junk); ok {
971 u, _ = uu.GetString("href")
972 if mt == "" {
973 mt, _ = uu.GetString("mediaType")
974 }
975 }
976 }
977 } else if uu, ok := att.GetMap("url"); ok {
978 u, _ = uu.GetString("href")
979 if mt == "" {
980 mt, _ = uu.GetString("mediaType")
981 }
982 }
983 }
984 name, _ := att.GetString("name")
985 desc, _ := att.GetString("summary")
986 desc = html.UnescapeString(desc)
987 if desc == "" {
988 desc = name
989 }
990 localize := false
991 if at == "Document" || at == "Image" {
992 mt = strings.ToLower(mt)
993 dlog.Printf("attachment: %s %s", mt, u)
994 if mt == "text/plain" || mt == "application/pdf" ||
995 strings.HasPrefix(mt, "image") {
996 if numatts > 4 {
997 ilog.Printf("excessive attachment: %s", at)
998 } else {
999 localize = true
1000 }
1001 }
1002 } else if at == "Link" {
1003 if waspage {
1004 xonk.Noise += fmt.Sprintf(`<p><a href="%s">%s</a>`, u, u)
1005 return
1006 }
1007 if name == "" {
1008 name = u
1009 }
1010 } else {
1011 ilog.Printf("unknown attachment: %s", at)
1012 }
1013 if skipMedia(&xonk) {
1014 localize = false
1015 }
1016 if preferorig && !localize {
1017 return
1018 }
1019 donk := savedonk(u, name, desc, mt, localize)
1020 if donk != nil {
1021 xonk.Donks = append(xonk.Donks, donk)
1022 }
1023 numatts++
1024 }
1025 if img, ok := obj.GetMap("image"); ok {
1026 procatt(img)
1027 }
1028 if preferorig {
1029 atts, _ := obj.GetArray("url")
1030 for _, atti := range atts {
1031 att, ok := atti.(junk.Junk)
1032 if !ok {
1033 ilog.Printf("attachment that wasn't map?")
1034 continue
1035 }
1036 procatt(att)
1037 }
1038 if numatts == 0 {
1039 preferorig = false
1040 }
1041 }
1042 if !preferorig {
1043 atts := oneforall(obj, "attachment")
1044 for _, atti := range atts {
1045 att, ok := atti.(junk.Junk)
1046 if !ok {
1047 ilog.Printf("attachment that wasn't map?")
1048 continue
1049 }
1050 procatt(att)
1051 }
1052 }
1053 proctag := func(tag junk.Junk) {
1054 tt, _ := tag.GetString("type")
1055 name, _ := tag.GetString("name")
1056 desc, _ := tag.GetString("summary")
1057 desc = html.UnescapeString(desc)
1058 if desc == "" {
1059 desc = name
1060 }
1061 if tt == "Emoji" {
1062 icon, _ := tag.GetMap("icon")
1063 mt, _ := icon.GetString("mediaType")
1064 if mt == "" {
1065 mt = "image/png"
1066 }
1067 u, _ := icon.GetString("url")
1068 donk := savedonk(u, name, desc, mt, true)
1069 if donk != nil {
1070 xonk.Donks = append(xonk.Donks, donk)
1071 }
1072 }
1073 if tt == "Hashtag" {
1074 if name == "" || name == "#" {
1075 // skip it
1076 } else {
1077 if name[0] != '#' {
1078 name = "#" + name
1079 }
1080 xonk.Onts = append(xonk.Onts, name)
1081 }
1082 }
1083 if tt == "Place" {
1084 p := new(Place)
1085 p.Name = name
1086 p.Latitude, _ = tag.GetNumber("latitude")
1087 p.Longitude, _ = tag.GetNumber("longitude")
1088 p.Url, _ = tag.GetString("url")
1089 xonk.Place = p
1090 }
1091 if tt == "Mention" {
1092 var m Mention
1093 m.Who, _ = tag.GetString("name")
1094 m.Where, _ = tag.GetString("href")
1095 mentions = append(mentions, m)
1096 }
1097 }
1098 tags := oneforall(obj, "tag")
1099 for _, tagi := range tags {
1100 tag, ok := tagi.(junk.Junk)
1101 if !ok {
1102 continue
1103 }
1104 proctag(tag)
1105 }
1106 if starttime, ok := obj.GetString("startTime"); ok {
1107 if start, err := time.Parse(time.RFC3339, starttime); err == nil {
1108 t := new(Time)
1109 t.StartTime = start
1110 endtime, _ := obj.GetString("endTime")
1111 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
1112 dura, _ := obj.GetString("duration")
1113 if strings.HasPrefix(dura, "PT") {
1114 dura = strings.ToLower(dura[2:])
1115 d, _ := time.ParseDuration(dura)
1116 t.Duration = Duration(d)
1117 }
1118 xonk.Time = t
1119 }
1120 }
1121 if loca, ok := obj.GetMap("location"); ok {
1122 if tt, _ := loca.GetString("type"); tt == "Place" {
1123 p := new(Place)
1124 p.Name, _ = loca.GetString("name")
1125 p.Latitude, _ = loca.GetNumber("latitude")
1126 p.Longitude, _ = loca.GetNumber("longitude")
1127 p.Url, _ = loca.GetString("url")
1128 xonk.Place = p
1129 }
1130 }
1131
1132 xonk.Onts = oneofakind(xonk.Onts)
1133 replyobj, ok := obj.GetMap("replies")
1134 if ok {
1135 items, ok := replyobj.GetArray("items")
1136 if !ok {
1137 first, ok := replyobj.GetMap("first")
1138 if ok {
1139 items, _ = first.GetArray("items")
1140 }
1141 }
1142 for _, repl := range items {
1143 s, ok := repl.(string)
1144 if ok {
1145 replies = append(replies, s)
1146 }
1147 }
1148 }
1149
1150 }
1151
1152 if currenttid == "" {
1153 currenttid = convoy
1154 }
1155
1156 // init xonk
1157 xonk.What = what
1158 xonk.RID = rid
1159 xonk.Date, _ = time.Parse(time.RFC3339, dt)
1160 xonk.URL = url
1161 xonk.Format = "html"
1162 xonk.Convoy = convoy
1163 xonk.Mentions = mentions
1164 for _, m := range mentions {
1165 if m.Where == user.URL {
1166 xonk.Whofore = 1
1167 }
1168 }
1169 imaginate(&xonk)
1170
1171 if what == "chonk" {
1172 // undo damage above
1173 xonk.Noise = strings.TrimPrefix(xonk.Noise, "<p>")
1174 target := firstofmany(obj, "to")
1175 if target == user.URL {
1176 target = xonk.Honker
1177 }
1178 enc, _ := obj.GetString(chatKeyProp)
1179 if enc != "" {
1180 var dec string
1181 if pubkey, ok := getchatkey(xonk.Honker); ok {
1182 dec, err = decryptString(xonk.Noise, user.ChatSecKey, pubkey)
1183 if err != nil {
1184 ilog.Printf("failed to decrypt chonk")
1185 }
1186 }
1187 if err == nil {
1188 dlog.Printf("successful decrypt from %s", xonk.Honker)
1189 xonk.Noise = dec
1190 }
1191 }
1192 ch := Chonk{
1193 UserID: xonk.UserID,
1194 XID: xid,
1195 Who: xonk.Honker,
1196 Target: target,
1197 Date: xonk.Date,
1198 Noise: xonk.Noise,
1199 Format: xonk.Format,
1200 Donks: xonk.Donks,
1201 }
1202 savechonk(&ch)
1203 return nil
1204 }
1205
1206 if isUpdate {
1207 dlog.Printf("something has changed! %s", xonk.XID)
1208 prev := getxonk(user.ID, xonk.XID)
1209 if prev == nil {
1210 ilog.Printf("didn't find old version for update: %s", xonk.XID)
1211 isUpdate = false
1212 } else {
1213 xonk.ID = prev.ID
1214 updatehonk(&xonk)
1215 }
1216 }
1217 if !isUpdate && needxonk(user, &xonk) {
1218 if rid != "" && xonk.Public {
1219 if needxonkid(user, rid) {
1220 goingup++
1221 saveonemore(rid)
1222 goingup--
1223 }
1224 if convoy == "" {
1225 xx := getxonk(user.ID, rid)
1226 if xx != nil {
1227 convoy = xx.Convoy
1228 }
1229 }
1230 }
1231 if convoy == "" {
1232 convoy = currenttid
1233 }
1234 if convoy == "" {
1235 convoy = xonk.XID
1236 currenttid = convoy
1237 }
1238 xonk.Convoy = convoy
1239 savexonk(&xonk)
1240 }
1241 if goingup == 0 {
1242 for _, replid := range replies {
1243 if needxonkid(user, replid) {
1244 dlog.Printf("missing a reply: %s", replid)
1245 saveonemore(replid)
1246 }
1247 }
1248 }
1249 return &xonk
1250 }
1251
1252 return xonkxonkfn(item, origin, false, "")
1253}
1254
1255func dumpactivity(item junk.Junk) {
1256 fd, err := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
1257 if err != nil {
1258 elog.Printf("error opening inbox! %s", err)
1259 return
1260 }
1261 defer fd.Close()
1262 item.Write(fd)
1263 io.WriteString(fd, "\n")
1264}
1265
1266func rubadubdub(user *WhatAbout, req junk.Junk) {
1267 actor, _ := req.GetString("actor")
1268 j := junk.New()
1269 j["@context"] = itiswhatitis
1270 j["id"] = user.URL + "/dub/" + xfiltrate()
1271 j["type"] = "Accept"
1272 j["actor"] = user.URL
1273 j["to"] = actor
1274 j["published"] = time.Now().UTC().Format(time.RFC3339)
1275 j["object"] = req
1276
1277 deliverate(user.ID, actor, j.ToBytes())
1278}
1279
1280func itakeitallback(user *WhatAbout, xid string, owner string, folxid string) {
1281 j := junk.New()
1282 j["@context"] = itiswhatitis
1283 j["id"] = user.URL + "/unsub/" + folxid
1284 j["type"] = "Undo"
1285 j["actor"] = user.URL
1286 j["to"] = owner
1287 f := junk.New()
1288 f["id"] = user.URL + "/sub/" + folxid
1289 f["type"] = "Follow"
1290 f["actor"] = user.URL
1291 f["to"] = owner
1292 f["object"] = xid
1293 j["object"] = f
1294 j["published"] = time.Now().UTC().Format(time.RFC3339)
1295
1296 deliverate(user.ID, owner, j.ToBytes())
1297}
1298
1299func subsub(user *WhatAbout, xid string, owner string, folxid string) {
1300 if xid == "" {
1301 ilog.Printf("can't subscribe to empty")
1302 return
1303 }
1304 j := junk.New()
1305 j["@context"] = itiswhatitis
1306 j["id"] = user.URL + "/sub/" + folxid
1307 j["type"] = "Follow"
1308 j["actor"] = user.URL
1309 j["to"] = owner
1310 j["object"] = xid
1311 j["published"] = time.Now().UTC().Format(time.RFC3339)
1312
1313 deliverate(user.ID, owner, j.ToBytes())
1314}
1315
1316func activatedonks(donks []*Donk) []junk.Junk {
1317 var atts []junk.Junk
1318 for _, d := range donks {
1319 if re_emus.MatchString(d.Name) {
1320 continue
1321 }
1322 jd := junk.New()
1323 jd["mediaType"] = d.Media
1324 jd["name"] = d.Name
1325 jd["summary"] = html.EscapeString(d.Desc)
1326 jd["type"] = "Document"
1327 jd["url"] = d.URL
1328 atts = append(atts, jd)
1329 }
1330 return atts
1331}
1332
1333// returns activity, object
1334func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
1335 dt := h.Date.Format(time.RFC3339)
1336 var jo junk.Junk
1337 j := junk.New()
1338 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
1339 j["actor"] = user.URL
1340 j["published"] = dt
1341 if h.Public {
1342 h.Audience = append(h.Audience, user.URL+"/followers")
1343 }
1344 j["to"] = h.Audience[0]
1345 if len(h.Audience) > 1 {
1346 j["cc"] = h.Audience[1:]
1347 }
1348
1349 switch h.What {
1350 case "update":
1351 fallthrough
1352 case "event":
1353 fallthrough
1354 case "honk":
1355 j["type"] = "Create"
1356 jo = junk.New()
1357 jo["id"] = h.XID
1358 jo["type"] = "Note"
1359 if h.What == "event" {
1360 jo["type"] = "Event"
1361 }
1362 if h.What == "update" {
1363 j["type"] = "Update"
1364 jo["updated"] = dt
1365 }
1366 jo["published"] = dt
1367 jo["url"] = h.XID
1368 jo["attributedTo"] = user.URL
1369 if h.RID != "" {
1370 jo["inReplyTo"] = h.RID
1371 }
1372 if h.Convoy != "" {
1373 jo["context"] = h.Convoy
1374 jo["conversation"] = h.Convoy
1375 }
1376 jo["to"] = h.Audience[0]
1377 if len(h.Audience) > 1 {
1378 jo["cc"] = h.Audience[1:]
1379 }
1380 if !h.Public {
1381 jo["directMessage"] = true
1382 }
1383 h.Noise = re_retag.ReplaceAllString(h.Noise, "")
1384 translate(h)
1385 redoimages(h)
1386 if h.Precis != "" {
1387 jo["sensitive"] = true
1388 }
1389
1390 var replies []string
1391 for _, reply := range h.Replies {
1392 replies = append(replies, reply.XID)
1393 }
1394 if len(replies) > 0 {
1395 jr := junk.New()
1396 jr["type"] = "Collection"
1397 jr["totalItems"] = len(replies)
1398 jr["items"] = replies
1399 jo["replies"] = jr
1400 }
1401
1402 var tags []junk.Junk
1403 for _, m := range h.Mentions {
1404 t := junk.New()
1405 t["type"] = "Mention"
1406 t["name"] = m.Who
1407 t["href"] = m.Where
1408 tags = append(tags, t)
1409 }
1410 for _, o := range h.Onts {
1411 t := junk.New()
1412 t["type"] = "Hashtag"
1413 o = strings.ToLower(o)
1414 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1415 t["name"] = o
1416 tags = append(tags, t)
1417 }
1418 for _, e := range herdofemus(h.Noise) {
1419 t := junk.New()
1420 t["id"] = e.ID
1421 t["type"] = "Emoji"
1422 t["name"] = e.Name
1423 i := junk.New()
1424 i["type"] = "Image"
1425 i["mediaType"] = e.Type
1426 i["url"] = e.ID
1427 t["icon"] = i
1428 tags = append(tags, t)
1429 }
1430 for _, e := range fixupflags(h) {
1431 t := junk.New()
1432 t["id"] = e.ID
1433 t["type"] = "Emoji"
1434 t["name"] = e.Name
1435 i := junk.New()
1436 i["type"] = "Image"
1437 i["mediaType"] = "image/png"
1438 i["url"] = e.ID
1439 t["icon"] = i
1440 tags = append(tags, t)
1441 }
1442 if len(tags) > 0 {
1443 jo["tag"] = tags
1444 }
1445 if p := h.Place; p != nil {
1446 t := junk.New()
1447 t["type"] = "Place"
1448 if p.Name != "" {
1449 t["name"] = p.Name
1450 }
1451 if p.Latitude != 0 {
1452 t["latitude"] = p.Latitude
1453 }
1454 if p.Longitude != 0 {
1455 t["longitude"] = p.Longitude
1456 }
1457 if p.Url != "" {
1458 t["url"] = p.Url
1459 }
1460 jo["location"] = t
1461 }
1462 if t := h.Time; t != nil {
1463 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1464 if t.Duration != 0 {
1465 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1466 }
1467 }
1468 atts := activatedonks(h.Donks)
1469 if len(atts) > 0 {
1470 jo["attachment"] = atts
1471 }
1472 jo["summary"] = h.Precis
1473 jo["content"] = h.Noise
1474 j["object"] = jo
1475 case "bonk":
1476 j["type"] = "Announce"
1477 if h.Convoy != "" {
1478 j["context"] = h.Convoy
1479 }
1480 j["object"] = h.XID
1481 case "unbonk":
1482 b := junk.New()
1483 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1484 b["type"] = "Announce"
1485 b["actor"] = user.URL
1486 if h.Convoy != "" {
1487 b["context"] = h.Convoy
1488 }
1489 b["object"] = h.XID
1490 j["type"] = "Undo"
1491 j["object"] = b
1492 case "zonk":
1493 j["type"] = "Delete"
1494 j["object"] = h.XID
1495 case "ack":
1496 j["type"] = "Read"
1497 j["object"] = h.XID
1498 if h.Convoy != "" {
1499 j["context"] = h.Convoy
1500 }
1501 case "react":
1502 j["type"] = "EmojiReact"
1503 j["object"] = h.XID
1504 if h.Convoy != "" {
1505 j["context"] = h.Convoy
1506 }
1507 j["content"] = h.Noise
1508 case "deack":
1509 b := junk.New()
1510 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1511 b["type"] = "Read"
1512 b["actor"] = user.URL
1513 b["object"] = h.XID
1514 if h.Convoy != "" {
1515 b["context"] = h.Convoy
1516 }
1517 j["type"] = "Undo"
1518 j["object"] = b
1519 }
1520
1521 return j, jo
1522}
1523
1524var oldjonks = gencache.New(gencache.Options[string, []byte]{Fill: func(xid string) ([]byte, bool) {
1525 row := stmtAnyXonk.QueryRow(xid)
1526 honk := scanhonk(row)
1527 if honk == nil || !honk.Public {
1528 return nil, true
1529 }
1530 user, _ := butwhatabout(honk.Username)
1531 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1532 reversehonks(rawhonks)
1533 for _, h := range rawhonks {
1534 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1535 honk.Replies = append(honk.Replies, h)
1536 }
1537 }
1538 donksforhonks([]*Honk{honk})
1539 _, j := jonkjonk(user, honk)
1540 if j == nil {
1541 elog.Fatalf("what just happened? %v", honk)
1542 }
1543 j["@context"] = itiswhatitis
1544
1545 return j.ToBytes(), true
1546}, Limit: 128})
1547
1548func gimmejonk(xid string) ([]byte, bool) {
1549 j, ok := oldjonks.Get(xid)
1550 return j, ok
1551}
1552
1553func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1554 rcpts := make(map[string]bool)
1555 for _, a := range addresses {
1556 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1557 continue
1558 }
1559 if a[0] == '%' {
1560 rcpts[a] = true
1561 continue
1562 }
1563 box, ok := boxofboxes.Get(a)
1564 if ok && useshared && box.Shared != "" {
1565 rcpts["%"+box.Shared] = true
1566 } else {
1567 rcpts[a] = true
1568 }
1569 }
1570 return rcpts
1571}
1572
1573func chonkifymsg(user *WhatAbout, rcpt string, ch *Chonk) []byte {
1574 dt := ch.Date.Format(time.RFC3339)
1575 aud := []string{ch.Target}
1576
1577 jo := junk.New()
1578 jo["id"] = ch.XID
1579 jo["type"] = "ChatMessage"
1580 jo["published"] = dt
1581 jo["attributedTo"] = user.URL
1582 jo["to"] = aud
1583 content := string(ch.HTML)
1584 if user.ChatSecKey.key != nil {
1585 if pubkey, ok := getchatkey(rcpt); ok {
1586 var err error
1587 content, err = encryptString(content, user.ChatSecKey, pubkey)
1588 if err != nil {
1589 ilog.Printf("failure encrypting chonk: %s", err)
1590 }
1591 jo[chatKeyProp] = user.Options.ChatPubKey
1592 }
1593 }
1594 jo["content"] = content
1595
1596 atts := activatedonks(ch.Donks)
1597 if len(atts) > 0 {
1598 jo["attachment"] = atts
1599 }
1600 var tags []junk.Junk
1601 for _, e := range herdofemus(ch.Noise) {
1602 t := junk.New()
1603 t["id"] = e.ID
1604 t["type"] = "Emoji"
1605 t["name"] = e.Name
1606 i := junk.New()
1607 i["type"] = "Image"
1608 i["mediaType"] = e.Type
1609 i["url"] = e.ID
1610 t["icon"] = i
1611 tags = append(tags, t)
1612 }
1613 if len(tags) > 0 {
1614 jo["tag"] = tags
1615 }
1616
1617 j := junk.New()
1618 j["@context"] = itiswhatitis
1619 j["id"] = user.URL + "/" + "honk" + "/" + shortxid(ch.XID)
1620 j["type"] = "Create"
1621 j["actor"] = user.URL
1622 j["published"] = dt
1623 j["to"] = aud
1624 j["object"] = jo
1625
1626 return j.ToBytes()
1627}
1628
1629func sendchonk(user *WhatAbout, ch *Chonk) {
1630 rcpts := make(map[string]bool)
1631 rcpts[ch.Target] = true
1632 for a := range rcpts {
1633 msg := chonkifymsg(user, a, ch)
1634 go deliverate(user.ID, a, msg)
1635 }
1636}
1637
1638func honkworldwide(user *WhatAbout, honk *Honk) {
1639 jonk, _ := jonkjonk(user, honk)
1640 jonk["@context"] = itiswhatitis
1641 msg := jonk.ToBytes()
1642
1643 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1644
1645 if honk.Public {
1646 for _, h := range getdubs(user.ID) {
1647 if h.XID == user.URL {
1648 continue
1649 }
1650 box, ok := boxofboxes.Get(h.XID)
1651 if ok && box.Shared != "" {
1652 rcpts["%"+box.Shared] = true
1653 } else {
1654 rcpts[h.XID] = true
1655 }
1656 }
1657 for _, f := range getbacktracks(honk.XID) {
1658 if f[0] == '%' {
1659 rcpts[f] = true
1660 } else {
1661 box, ok := boxofboxes.Get(f)
1662 if ok && box.Shared != "" {
1663 rcpts["%"+box.Shared] = true
1664 } else {
1665 rcpts[f] = true
1666 }
1667 }
1668 }
1669 }
1670 for a := range rcpts {
1671 go deliverate(user.ID, a, msg)
1672 }
1673 if honk.Public && len(honk.Onts) > 0 {
1674 collectiveaction(honk)
1675 }
1676}
1677
1678func collectiveaction(honk *Honk) {
1679 user := getserveruser()
1680 for _, ont := range honk.Onts {
1681 dubs := getnameddubs(readyLuserOne, ont)
1682 if len(dubs) == 0 {
1683 continue
1684 }
1685 j := junk.New()
1686 j["@context"] = itiswhatitis
1687 j["type"] = "Add"
1688 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1689 j["actor"] = user.URL
1690 j["object"] = honk.XID
1691 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1692 rcpts := make(map[string]bool)
1693 for _, dub := range dubs {
1694 box, ok := boxofboxes.Get(dub.XID)
1695 if ok && box.Shared != "" {
1696 rcpts["%"+box.Shared] = true
1697 } else {
1698 rcpts[dub.XID] = true
1699 }
1700 }
1701 msg := j.ToBytes()
1702 for a := range rcpts {
1703 go deliverate(user.ID, a, msg)
1704 }
1705 }
1706}
1707
1708func junkuser(user *WhatAbout) junk.Junk {
1709 j := junk.New()
1710 j["@context"] = itiswhatitis
1711 j["id"] = user.URL
1712 j["inbox"] = user.URL + "/inbox"
1713 j["outbox"] = user.URL + "/outbox"
1714 j["name"] = user.Display
1715 j["preferredUsername"] = user.Name
1716 j["summary"] = user.HTAbout
1717 var tags []junk.Junk
1718 for _, o := range user.Onts {
1719 t := junk.New()
1720 t["type"] = "Hashtag"
1721 o = strings.ToLower(o)
1722 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1723 t["name"] = o
1724 tags = append(tags, t)
1725 }
1726 if len(tags) > 0 {
1727 j["tag"] = tags
1728 }
1729
1730 if user.ID > 0 {
1731 j["type"] = "Person"
1732 j["url"] = user.URL
1733 j["followers"] = user.URL + "/followers"
1734 j["following"] = user.URL + "/following"
1735 a := junk.New()
1736 a["type"] = "Image"
1737 a["mediaType"] = "image/png"
1738 a["url"] = avatarURL(user)
1739 j["icon"] = a
1740 if ban := user.Options.Banner; ban != "" {
1741 a := junk.New()
1742 a["type"] = "Image"
1743 a["mediaType"] = "image/jpg"
1744 a["url"] = ban
1745 j["image"] = a
1746 }
1747 } else {
1748 j["type"] = "Service"
1749 }
1750 k := junk.New()
1751 k["id"] = user.URL + "#key"
1752 k["owner"] = user.URL
1753 k["publicKeyPem"] = user.Key
1754 j["publicKey"] = k
1755 j[chatKeyProp] = user.Options.ChatPubKey
1756
1757 return j
1758}
1759
1760var oldjonkers = gencache.New(gencache.Options[string, []byte]{Fill: func(name string) ([]byte, bool) {
1761 user, err := butwhatabout(name)
1762 if err != nil {
1763 return nil, false
1764 }
1765 j := junkuser(user)
1766 return j.ToBytes(), true
1767}, Duration: 1 * time.Minute})
1768
1769func asjonker(name string) ([]byte, bool) {
1770 j, ok := oldjonkers.Get(name)
1771 return j, ok
1772}
1773
1774var handfull = gencache.New(gencache.Options[string, string]{Fill: func(name string) (string, bool) {
1775 m := strings.Split(name, "@")
1776 if len(m) != 2 {
1777 dlog.Printf("bad fish name: %s", name)
1778 return "", true
1779 }
1780 var href string
1781 row := stmtGetXonker.QueryRow(name, "fishname")
1782 err := row.Scan(&href)
1783 if err == nil {
1784 return href, true
1785 }
1786 dlog.Printf("fishing for %s", name)
1787 j, err := GetJunkFast(readyLuserOne, fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1788 if err != nil {
1789 ilog.Printf("failed to go fish %s: %s", name, err)
1790 return "", true
1791 }
1792 links, _ := j.GetArray("links")
1793 for _, li := range links {
1794 l, ok := li.(junk.Junk)
1795 if !ok {
1796 continue
1797 }
1798 href, _ := l.GetString("href")
1799 rel, _ := l.GetString("rel")
1800 t, _ := l.GetString("type")
1801 if rel == "self" && friendorfoe(t) {
1802 when := time.Now().UTC().Format(dbtimeformat)
1803 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1804 if err != nil {
1805 elog.Printf("error saving fishname: %s", err)
1806 }
1807 return href, true
1808 }
1809 }
1810 return href, true
1811}, Duration: 1 * time.Minute})
1812
1813func gofish(name string) string {
1814 if name[0] == '@' {
1815 name = name[1:]
1816 }
1817 href, _ := handfull.Get(name)
1818 return href
1819}
1820
1821func investigate(name string) (*SomeThing, error) {
1822 if name == "" {
1823 return nil, fmt.Errorf("no name")
1824 }
1825 if name[0] == '@' {
1826 name = gofish(name)
1827 }
1828 if name == "" {
1829 return nil, fmt.Errorf("no name")
1830 }
1831 obj, err := GetJunkFast(readyLuserOne, name)
1832 if err != nil {
1833 return nil, err
1834 }
1835 allinjest(originate(name), obj)
1836 return somethingabout(obj)
1837}
1838
1839func somethingabout(obj junk.Junk) (*SomeThing, error) {
1840 info := new(SomeThing)
1841 t, _ := obj.GetString("type")
1842 isowned := false
1843 switch t {
1844 case "Person":
1845 fallthrough
1846 case "Group":
1847 fallthrough
1848 case "Organization":
1849 fallthrough
1850 case "Application":
1851 fallthrough
1852 case "Service":
1853 info.What = SomeActor
1854 case "OrderedCollection":
1855 isowned = true
1856 fallthrough
1857 case "Collection":
1858 info.What = SomeCollection
1859 default:
1860 return nil, fmt.Errorf("unknown object type")
1861 }
1862 info.XID, _ = obj.GetString("id")
1863 info.Name, _ = obj.GetString("preferredUsername")
1864 if info.Name == "" {
1865 info.Name, _ = obj.GetString("name")
1866 }
1867 if isowned {
1868 info.Owner, _ = obj.GetString("attributedTo")
1869 }
1870 if info.Owner == "" {
1871 info.Owner = info.XID
1872 }
1873 return info, nil
1874}
1875
1876func allinjest(origin string, obj junk.Junk) {
1877 ident, _ := obj.GetString("id")
1878 if ident == "" {
1879 return
1880 }
1881 if originate(ident) != origin {
1882 return
1883 }
1884 keyobj, ok := obj.GetMap("publicKey")
1885 if ok {
1886 ingestpubkey(origin, keyobj)
1887 }
1888 ingestboxes(origin, obj)
1889 ingesthandle(origin, obj)
1890 chatkey, ok := obj.GetString(chatKeyProp)
1891 if ok {
1892 when := time.Now().UTC().Format(dbtimeformat)
1893 _, err := stmtSaveXonker.Exec(ident, chatkey, chatKeyProp, when)
1894 if err != nil {
1895 elog.Printf("error saving chatkey: %s", err)
1896 }
1897 }
1898}
1899
1900func ingestpubkey(origin string, obj junk.Junk) {
1901 keyobj, ok := obj.GetMap("publicKey")
1902 if ok {
1903 obj = keyobj
1904 }
1905 keyname, ok := obj.GetString("id")
1906 var data string
1907 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1908 err := row.Scan(&data)
1909 if err == nil {
1910 return
1911 }
1912 if !ok || origin != originate(keyname) {
1913 ilog.Printf("bad key origin %s <> %s", origin, keyname)
1914 return
1915 }
1916 dlog.Printf("ingesting a needed pubkey: %s", keyname)
1917 owner, ok := obj.GetString("owner")
1918 if !ok {
1919 ilog.Printf("error finding %s pubkey owner", keyname)
1920 return
1921 }
1922 data, ok = obj.GetString("publicKeyPem")
1923 if !ok {
1924 ilog.Printf("error finding %s pubkey", keyname)
1925 return
1926 }
1927 if originate(owner) != origin {
1928 ilog.Printf("bad key owner: %s <> %s", owner, origin)
1929 return
1930 }
1931 _, _, err = httpsig.DecodeKey(data)
1932 if err != nil {
1933 ilog.Printf("error decoding %s pubkey: %s", keyname, err)
1934 return
1935 }
1936 when := time.Now().UTC().Format(dbtimeformat)
1937 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1938 if err != nil {
1939 elog.Printf("error saving key: %s", err)
1940 }
1941}
1942
1943func ingestboxes(origin string, obj junk.Junk) {
1944 ident, _ := obj.GetString("id")
1945 if ident == "" {
1946 return
1947 }
1948 if originate(ident) != origin {
1949 return
1950 }
1951 var info string
1952 row := stmtGetXonker.QueryRow(ident, "boxes")
1953 err := row.Scan(&info)
1954 if err == nil {
1955 return
1956 }
1957 dlog.Printf("ingesting boxes: %s", ident)
1958 inbox, _ := obj.GetString("inbox")
1959 outbox, _ := obj.GetString("outbox")
1960 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1961 if inbox != "" {
1962 when := time.Now().UTC().Format(dbtimeformat)
1963 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1964 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1965 if err != nil {
1966 elog.Printf("error saving boxes: %s", err)
1967 }
1968 }
1969}
1970
1971func ingesthandle(origin string, obj junk.Junk) {
1972 xid, _ := obj.GetString("id")
1973 if xid == "" {
1974 return
1975 }
1976 if originate(xid) != origin {
1977 return
1978 }
1979 var handle string
1980 row := stmtGetXonker.QueryRow(xid, "handle")
1981 err := row.Scan(&handle)
1982 if err == nil {
1983 return
1984 }
1985 handle, _ = obj.GetString("preferredUsername")
1986 if handle != "" {
1987 when := time.Now().UTC().Format(dbtimeformat)
1988 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1989 if err != nil {
1990 elog.Printf("error saving handle: %s", err)
1991 }
1992 }
1993}
1994
1995func updateMe(username string) {
1996 user, _ := somenamedusers.Get(username)
1997 dt := time.Now().UTC().Format(time.RFC3339)
1998 j := junk.New()
1999 j["@context"] = itiswhatitis
2000 j["id"] = fmt.Sprintf("%s/upme/%s/%d", user.URL, user.Name, time.Now().Unix())
2001 j["actor"] = user.URL
2002 j["published"] = dt
2003 j["to"] = thewholeworld
2004 j["type"] = "Update"
2005 j["object"] = junkuser(user)
2006
2007 msg := j.ToBytes()
2008
2009 rcpts := make(map[string]bool)
2010 for _, f := range getdubs(user.ID) {
2011 if f.XID == user.URL {
2012 continue
2013 }
2014 box, ok := boxofboxes.Get(f.XID)
2015 if ok && box.Shared != "" {
2016 rcpts["%"+box.Shared] = true
2017 } else {
2018 rcpts[f.XID] = true
2019 }
2020 }
2021 for a := range rcpts {
2022 go deliverate(user.ID, a, msg)
2023 }
2024}
2025
2026func followme(user *WhatAbout, who string, name string, j junk.Junk) {
2027 folxid, _ := j.GetString("id")
2028
2029 ilog.Printf("updating honker follow: %s %s", who, folxid)
2030
2031 var x string
2032 db := opendatabase()
2033 row := db.QueryRow("select xid from honkers where name = ? and xid = ? and userid = ? and flavor in ('dub', 'undub')", name, who, user.ID)
2034 err := row.Scan(&x)
2035 if err != sql.ErrNoRows {
2036 ilog.Printf("duplicate follow request: %s", who)
2037 _, err = stmtUpdateFlavor.Exec("dub", folxid, user.ID, name, who, "undub")
2038 if err != nil {
2039 elog.Printf("error updating honker: %s", err)
2040 }
2041 } else {
2042 stmtSaveDub.Exec(user.ID, name, who, "dub", folxid)
2043 }
2044 go rubadubdub(user, j)
2045}
2046
2047func unfollowme(user *WhatAbout, who string, name string, j junk.Junk) {
2048 var folxid string
2049 if who == "" {
2050 folxid, _ = j.GetString("object")
2051
2052 db := opendatabase()
2053 row := db.QueryRow("select xid, name from honkers where userid = ? and folxid = ? and flavor in ('dub', 'undub')", user.ID, folxid)
2054 err := row.Scan(&who, &name)
2055 if err != nil {
2056 if err != sql.ErrNoRows {
2057 elog.Printf("error scanning honker: %s", err)
2058 }
2059 return
2060 }
2061 }
2062
2063 ilog.Printf("updating honker undo: %s %s", who, folxid)
2064 _, err := stmtUpdateFlavor.Exec("undub", folxid, user.ID, name, who, "dub")
2065 if err != nil {
2066 elog.Printf("error updating honker: %s", err)
2067 return
2068 }
2069}
2070
2071func followyou(user *WhatAbout, honkerid int64, sync bool) {
2072 var url, owner string
2073 db := opendatabase()
2074 row := db.QueryRow("select xid, owner from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub', 'sub')",
2075 honkerid, user.ID)
2076 err := row.Scan(&url, &owner)
2077 if err != nil {
2078 elog.Printf("can't get honker xid: %s", err)
2079 return
2080 }
2081 folxid := xfiltrate()
2082 ilog.Printf("subscribing to %s", url)
2083 _, err = db.Exec("update honkers set flavor = ?, folxid = ? where honkerid = ?", "presub", folxid, honkerid)
2084 if err != nil {
2085 elog.Printf("error updating honker: %s", err)
2086 return
2087 }
2088 if sync {
2089 subsub(user, url, owner, folxid)
2090 } else {
2091 go subsub(user, url, owner, folxid)
2092 }
2093
2094}
2095func unfollowyou(user *WhatAbout, honkerid int64, sync bool) {
2096 db := opendatabase()
2097 row := db.QueryRow("select xid, owner, folxid, flavor from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub', 'sub')",
2098 honkerid, user.ID)
2099 var url, owner, folxid, flavor string
2100 err := row.Scan(&url, &owner, &folxid, &flavor)
2101 if err != nil {
2102 elog.Printf("can't get honker xid: %s", err)
2103 return
2104 }
2105 if flavor == "peep" {
2106 return
2107 }
2108 ilog.Printf("unsubscribing from %s", url)
2109 _, err = db.Exec("update honkers set flavor = ? where honkerid = ?", "unsub", honkerid)
2110 if err != nil {
2111 elog.Printf("error updating honker: %s", err)
2112 return
2113 }
2114 if sync {
2115 itakeitallback(user, url, owner, folxid)
2116 } else {
2117 go itakeitallback(user, url, owner, folxid)
2118 }
2119}
2120
2121func followyou2(user *WhatAbout, j junk.Junk) {
2122 who, _ := j.GetString("actor")
2123
2124 ilog.Printf("updating honker accept: %s", who)
2125 db := opendatabase()
2126 row := db.QueryRow("select name, folxid from honkers where userid = ? and xid = ? and flavor in ('presub', 'sub')",
2127 user.ID, who)
2128 var name, folxid string
2129 err := row.Scan(&name, &folxid)
2130 if err != nil {
2131 elog.Printf("can't get honker name: %s", err)
2132 return
2133 }
2134 _, err = stmtUpdateFlavor.Exec("sub", folxid, user.ID, name, who, "presub")
2135 if err != nil {
2136 elog.Printf("error updating honker: %s", err)
2137 return
2138 }
2139}
2140
2141func nofollowyou2(user *WhatAbout, j junk.Junk) {
2142 who, _ := j.GetString("actor")
2143
2144 ilog.Printf("updating honker reject: %s", who)
2145 db := opendatabase()
2146 row := db.QueryRow("select name, folxid from honkers where userid = ? and xid = ? and flavor in ('presub', 'sub')",
2147 user.ID, who)
2148 var name, folxid string
2149 err := row.Scan(&name, &folxid)
2150 if err != nil {
2151 elog.Printf("can't get honker name: %s", err)
2152 return
2153 }
2154 _, err = stmtUpdateFlavor.Exec("unsub", folxid, user.ID, name, who, "presub")
2155 _, err = stmtUpdateFlavor.Exec("unsub", folxid, user.ID, name, who, "sub")
2156 if err != nil {
2157 elog.Printf("error updating honker: %s", err)
2158 return
2159 }
2160}