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 "log"
27 notrand "math/rand"
28 "net/http"
29 "net/url"
30 "os"
31 "strings"
32 "time"
33
34 "humungus.tedunangst.com/r/webs/cache"
35 "humungus.tedunangst.com/r/webs/gate"
36 "humungus.tedunangst.com/r/webs/httpsig"
37 "humungus.tedunangst.com/r/webs/junk"
38 "humungus.tedunangst.com/r/webs/templates"
39)
40
41var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
42var thefakename = `application/activity+json`
43var falsenames = []string{
44 `application/ld+json`,
45 `application/activity+json`,
46}
47var itiswhatitis = "https://www.w3.org/ns/activitystreams"
48var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
49
50func friendorfoe(ct string) bool {
51 ct = strings.ToLower(ct)
52 for _, at := range falsenames {
53 if strings.HasPrefix(ct, at) {
54 return true
55 }
56 }
57 return false
58}
59
60var debugClient = &http.Client{
61 Transport: &http.Transport{
62 TLSClientConfig: &tls.Config{
63 InsecureSkipVerify: true,
64 },
65 },
66}
67
68func PostJunk(keyname string, key httpsig.PrivateKey, url string, j junk.Junk) error {
69 return PostMsg(keyname, key, url, j.ToBytes())
70}
71
72func PostMsg(keyname string, key httpsig.PrivateKey, url string, msg []byte) error {
73 client := http.DefaultClient
74 if debugMode {
75 client = debugClient
76 }
77 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
78 if err != nil {
79 return err
80 }
81 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
82 req.Header.Set("Content-Type", theonetruename)
83 httpsig.SignRequest(keyname, key, req, msg)
84 ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
85 defer cancel()
86 req = req.WithContext(ctx)
87 resp, err := client.Do(req)
88 if err != nil {
89 return err
90 }
91 resp.Body.Close()
92 switch resp.StatusCode {
93 case 200:
94 case 201:
95 case 202:
96 default:
97 return fmt.Errorf("http post status: %d", resp.StatusCode)
98 }
99 log.Printf("successful post: %s %d", url, resp.StatusCode)
100 return nil
101}
102
103type JunkError struct {
104 Junk junk.Junk
105 Err error
106}
107
108func GetJunk(url string) (junk.Junk, error) {
109 return GetJunkTimeout(url, 30*time.Second)
110}
111
112func GetJunkFast(url string) (junk.Junk, error) {
113 return GetJunkTimeout(url, 5*time.Second)
114}
115
116func GetJunkHardMode(url string) (junk.Junk, error) {
117 j, err := GetJunk(url)
118 if err != nil {
119 emsg := err.Error()
120 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
121 log.Printf("trying again after error: %s", emsg)
122 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
123 j, err = GetJunk(url)
124 if err != nil {
125 log.Printf("still couldn't get it")
126 } else {
127 log.Printf("retry success!")
128 }
129 }
130 }
131 return j, err
132}
133
134var flightdeck = gate.NewSerializer()
135
136func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
137
138 fn := func() (interface{}, error) {
139 at := thefakename
140 if strings.Contains(url, ".well-known/webfinger?resource") {
141 at = "application/jrd+json"
142 }
143 j, err := junk.Get(url, junk.GetArgs{
144 Accept: at,
145 Agent: "honksnonk/5.0; " + serverName,
146 Timeout: timeout,
147 })
148 return j, err
149 }
150
151 ji, err := flightdeck.Call(url, fn)
152 if err != nil {
153 return nil, err
154 }
155 j := ji.(junk.Junk)
156 return j, nil
157}
158
159func fetchsome(url string) ([]byte, error) {
160 client := http.DefaultClient
161 req, err := http.NewRequest("GET", url, nil)
162 if err != nil {
163 log.Printf("error fetching %s: %s", url, err)
164 return nil, err
165 }
166 ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
167 defer cancel()
168 req = req.WithContext(ctx)
169 resp, err := client.Do(req)
170 if err != nil {
171 log.Printf("error fetching %s: %s", url, err)
172 return nil, err
173 }
174 defer resp.Body.Close()
175 if resp.StatusCode != 200 {
176 return nil, fmt.Errorf("not 200: %d %s", resp.StatusCode, url)
177 }
178 var buf bytes.Buffer
179 limiter := io.LimitReader(resp.Body, 10*1024*1024)
180 io.Copy(&buf, limiter)
181 return buf.Bytes(), nil
182}
183
184func savedonk(url string, name, desc, media string, localize bool) *Donk {
185 if url == "" {
186 return nil
187 }
188 if donk := finddonk(url); donk != nil {
189 return donk
190 }
191 log.Printf("saving donk: %s", url)
192 xid := xfiltrate()
193 data := []byte{}
194 if localize {
195 fn := func() (interface{}, error) {
196 return fetchsome(url)
197 }
198 ii, err := flightdeck.Call(url, fn)
199 if err != nil {
200 log.Printf("error fetching donk: %s", err)
201 localize = false
202 goto saveit
203 }
204 data = ii.([]byte)
205
206 if len(data) == 10*1024*1024 {
207 log.Printf("truncation likely")
208 }
209 if strings.HasPrefix(media, "image") {
210 img, err := shrinkit(data)
211 if err != nil {
212 log.Printf("unable to decode image: %s", err)
213 localize = false
214 data = []byte{}
215 goto saveit
216 }
217 data = img.Data
218 format := img.Format
219 media = "image/" + format
220 if format == "jpeg" {
221 format = "jpg"
222 }
223 xid = xid + "." + format
224 } else if media == "application/pdf" {
225 if len(data) > 1000000 {
226 log.Printf("not saving large pdf")
227 localize = false
228 data = []byte{}
229 }
230 } else if len(data) > 100000 {
231 log.Printf("not saving large attachment")
232 localize = false
233 data = []byte{}
234 }
235 }
236saveit:
237 fileid, err := savefile(xid, name, desc, url, media, localize, data)
238 if err != nil {
239 log.Printf("error saving file %s: %s", url, err)
240 return nil
241 }
242 donk := new(Donk)
243 donk.FileID = fileid
244 donk.XID = xid
245 return donk
246}
247
248func iszonked(userid int64, xid string) bool {
249 var id int64
250 row := stmtFindZonk.QueryRow(userid, xid)
251 err := row.Scan(&id)
252 if err == nil {
253 return true
254 }
255 if err != sql.ErrNoRows {
256 log.Printf("error querying zonk: %s", err)
257 }
258 return false
259}
260
261func needxonk(user *WhatAbout, x *Honk) bool {
262 if rejectxonk(x) {
263 return false
264 }
265 return needxonkid(user, x.XID)
266}
267func needbonkid(user *WhatAbout, xid string) bool {
268 return needxonkidX(user, xid, true)
269}
270func needxonkid(user *WhatAbout, xid string) bool {
271 return needxonkidX(user, xid, false)
272}
273func needxonkidX(user *WhatAbout, xid string, isannounce bool) bool {
274 if !strings.HasPrefix(xid, "https://") {
275 return false
276 }
277 if strings.HasPrefix(xid, user.URL+"/") {
278 return false
279 }
280 if rejectorigin(user.ID, xid, isannounce) {
281 log.Printf("rejecting origin: %s", xid)
282 return false
283 }
284 if iszonked(user.ID, xid) {
285 log.Printf("already zonked: %s", xid)
286 return false
287 }
288 var id int64
289 row := stmtFindXonk.QueryRow(user.ID, xid)
290 err := row.Scan(&id)
291 if err == nil {
292 return false
293 }
294 if err != sql.ErrNoRows {
295 log.Printf("error querying xonk: %s", err)
296 }
297 return true
298}
299
300func eradicatexonk(userid int64, xid string) {
301 xonk := getxonk(userid, xid)
302 if xonk != nil {
303 deletehonk(xonk.ID)
304 }
305 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
306 if err != nil {
307 log.Printf("error eradicating: %s", err)
308 }
309}
310
311func savexonk(x *Honk) {
312 log.Printf("saving xonk: %s", x.XID)
313 go handles(x.Honker)
314 go handles(x.Oonker)
315 savehonk(x)
316}
317
318type Box struct {
319 In string
320 Out string
321 Shared string
322}
323
324var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
325 var info string
326 row := stmtGetXonker.QueryRow(ident, "boxes")
327 err := row.Scan(&info)
328 if err != nil {
329 log.Printf("need to get boxes for %s", ident)
330 var j junk.Junk
331 j, err = GetJunk(ident)
332 if err != nil {
333 log.Printf("error getting boxes: %s", err)
334 return nil, false
335 }
336 allinjest(originate(ident), j)
337 row = stmtGetXonker.QueryRow(ident, "boxes")
338 err = row.Scan(&info)
339 }
340 if err == nil {
341 m := strings.Split(info, " ")
342 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
343 return b, true
344 }
345 return nil, false
346}})
347
348func gimmexonks(user *WhatAbout, outbox string) {
349 log.Printf("getting outbox: %s", outbox)
350 j, err := GetJunk(outbox)
351 if err != nil {
352 log.Printf("error getting outbox: %s", err)
353 return
354 }
355 t, _ := j.GetString("type")
356 origin := originate(outbox)
357 if t == "OrderedCollection" {
358 items, _ := j.GetArray("orderedItems")
359 if items == nil {
360 items, _ = j.GetArray("items")
361 }
362 if items == nil {
363 obj, ok := j.GetMap("first")
364 if ok {
365 items, _ = obj.GetArray("orderedItems")
366 } else {
367 page1, ok := j.GetString("first")
368 if ok {
369 j, err = GetJunk(page1)
370 if err != nil {
371 log.Printf("error gettings page1: %s", err)
372 return
373 }
374 items, _ = j.GetArray("orderedItems")
375 }
376 }
377 }
378 if len(items) > 20 {
379 items = items[0:20]
380 }
381 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
382 items[i], items[j] = items[j], items[i]
383 }
384 for _, item := range items {
385 obj, ok := item.(junk.Junk)
386 if ok {
387 xonksaver(user, obj, origin)
388 continue
389 }
390 xid, ok := item.(string)
391 if ok {
392 if !needxonkid(user, xid) {
393 continue
394 }
395 obj, err = GetJunk(xid)
396 if err != nil {
397 log.Printf("error getting item: %s", err)
398 continue
399 }
400 xonksaver(user, obj, originate(xid))
401 }
402 }
403 }
404}
405
406func newphone(a []string, obj junk.Junk) []string {
407 for _, addr := range []string{"to", "cc", "attributedTo"} {
408 who, _ := obj.GetString(addr)
409 if who != "" {
410 a = append(a, who)
411 }
412 whos, _ := obj.GetArray(addr)
413 for _, w := range whos {
414 who, _ := w.(string)
415 if who != "" {
416 a = append(a, who)
417 }
418 }
419 }
420 return a
421}
422
423func extractattrto(obj junk.Junk) string {
424 who, _ := obj.GetString("attributedTo")
425 if who != "" {
426 return who
427 }
428 o, ok := obj.GetMap("attributedTo")
429 if ok {
430 id, ok := o.GetString("id")
431 if ok {
432 return id
433 }
434 }
435 arr, _ := obj.GetArray("attributedTo")
436 for _, a := range arr {
437 o, ok := a.(junk.Junk)
438 if ok {
439 t, _ := o.GetString("type")
440 id, _ := o.GetString("id")
441 if t == "Person" || t == "" {
442 return id
443 }
444 }
445 s, ok := a.(string)
446 if ok {
447 return s
448 }
449 }
450 return ""
451}
452
453func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
454 depth := 0
455 maxdepth := 10
456 currenttid := ""
457 goingup := 0
458 var xonkxonkfn func(item junk.Junk, origin string) *Honk
459
460 saveonemore := func(xid string) {
461 log.Printf("getting onemore: %s", xid)
462 if depth >= maxdepth {
463 log.Printf("in too deep")
464 return
465 }
466 obj, err := GetJunkHardMode(xid)
467 if err != nil {
468 log.Printf("error getting onemore: %s: %s", xid, err)
469 return
470 }
471 depth++
472 xonkxonkfn(obj, originate(xid))
473 depth--
474 }
475
476 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
477 id, _ := item.GetString("id")
478 what, _ := item.GetString("type")
479 dt, ok := item.GetString("published")
480 if !ok {
481 dt = time.Now().Format(time.RFC3339)
482 }
483
484 var err error
485 var xid, rid, url, content, precis, convoy string
486 var replies []string
487 var obj junk.Junk
488 isUpdate := false
489 switch what {
490 case "Delete":
491 obj, ok = item.GetMap("object")
492 if ok {
493 xid, _ = obj.GetString("id")
494 } else {
495 xid, _ = item.GetString("object")
496 }
497 if xid == "" {
498 return nil
499 }
500 if originate(xid) != origin {
501 log.Printf("forged delete: %s", xid)
502 return nil
503 }
504 log.Printf("eradicating %s", xid)
505 eradicatexonk(user.ID, xid)
506 return nil
507 case "Tombstone":
508 xid, _ = item.GetString("id")
509 if xid == "" {
510 return nil
511 }
512 if originate(xid) != origin {
513 log.Printf("forged delete: %s", xid)
514 return nil
515 }
516 log.Printf("eradicating %s", xid)
517 eradicatexonk(user.ID, xid)
518 return nil
519 case "Announce":
520 obj, ok = item.GetMap("object")
521 if ok {
522 xid, _ = obj.GetString("id")
523 } else {
524 xid, _ = item.GetString("object")
525 }
526 if !needbonkid(user, xid) {
527 return nil
528 }
529 log.Printf("getting bonk: %s", xid)
530 obj, err = GetJunkHardMode(xid)
531 if err != nil {
532 log.Printf("error getting bonk: %s: %s", xid, err)
533 }
534 origin = originate(xid)
535 what = "bonk"
536 case "Update":
537 isUpdate = true
538 fallthrough
539 case "Create":
540 obj, ok = item.GetMap("object")
541 if !ok {
542 xid, _ = item.GetString("object")
543 log.Printf("getting created honk: %s", xid)
544 if originate(xid) != origin {
545 log.Printf("out of bounds %s not from %s", xid, origin)
546 return nil
547 }
548 obj, err = GetJunkHardMode(xid)
549 if err != nil {
550 log.Printf("error getting creation: %s", err)
551 }
552 }
553 if obj == nil {
554 log.Printf("no object for creation %s", id)
555 return nil
556 }
557 return xonkxonkfn(obj, origin)
558 case "Read":
559 xid, ok = item.GetString("object")
560 if ok {
561 if !needxonkid(user, xid) {
562 log.Printf("don't need read obj: %s", xid)
563 return nil
564 }
565 obj, err = GetJunkHardMode(xid)
566 if err != nil {
567 log.Printf("error getting read: %s", err)
568 return nil
569 }
570 return xonkxonkfn(obj, originate(xid))
571 }
572 return nil
573 case "Add":
574 xid, ok = item.GetString("object")
575 if ok {
576 // check target...
577 if !needxonkid(user, xid) {
578 log.Printf("don't need added obj: %s", xid)
579 return nil
580 }
581 obj, err = GetJunkHardMode(xid)
582 if err != nil {
583 log.Printf("error getting add: %s", err)
584 return nil
585 }
586 return xonkxonkfn(obj, originate(xid))
587 }
588 return nil
589 case "Move":
590 obj = item
591 what = "move"
592 case "Audio":
593 fallthrough
594 case "Image":
595 fallthrough
596 case "Video":
597 fallthrough
598 case "Question":
599 fallthrough
600 case "Note":
601 fallthrough
602 case "Article":
603 fallthrough
604 case "Page":
605 obj = item
606 what = "honk"
607 case "Event":
608 obj = item
609 what = "event"
610 default:
611 log.Printf("unknown activity: %s", what)
612 dumpactivity(item)
613 return nil
614 }
615
616 if obj != nil {
617 xid, _ = obj.GetString("id")
618 }
619
620 if xid == "" {
621 log.Printf("don't know what xid is")
622 item.Write(os.Stdout)
623 return nil
624 }
625 if originate(xid) != origin {
626 log.Printf("original sin: %s not from %s", xid, origin)
627 item.Write(os.Stdout)
628 return nil
629 }
630
631 var xonk Honk
632 // early init
633 xonk.XID = xid
634 xonk.UserID = user.ID
635 xonk.Honker, _ = item.GetString("actor")
636 if xonk.Honker == "" {
637 xonk.Honker, _ = item.GetString("attributedTo")
638 }
639 if obj != nil {
640 if xonk.Honker == "" {
641 xonk.Honker = extractattrto(obj)
642 }
643 xonk.Oonker = extractattrto(obj)
644 if xonk.Oonker == xonk.Honker {
645 xonk.Oonker = ""
646 }
647 xonk.Audience = newphone(nil, obj)
648 }
649 xonk.Audience = append(xonk.Audience, xonk.Honker)
650 xonk.Audience = oneofakind(xonk.Audience)
651
652 var mentions []Mention
653 if obj != nil {
654 ot, _ := obj.GetString("type")
655 url, _ = obj.GetString("url")
656 if dt2, ok := obj.GetString("published"); ok {
657 dt = dt2
658 }
659 content, _ = obj.GetString("content")
660 if !strings.HasPrefix(content, "<p>") {
661 content = "<p>" + content
662 }
663 precis, _ = obj.GetString("summary")
664 if name, ok := obj.GetString("name"); ok {
665 if precis != "" {
666 content = precis + "<p>" + content
667 }
668 precis = html.EscapeString(name)
669 }
670 if sens, _ := obj["sensitive"].(bool); sens && precis == "" {
671 precis = "unspecified horror"
672 }
673 rid, ok = obj.GetString("inReplyTo")
674 if !ok {
675 if robj, ok := obj.GetMap("inReplyTo"); ok {
676 rid, _ = robj.GetString("id")
677 }
678 }
679 convoy, _ = obj.GetString("context")
680 if convoy == "" {
681 convoy, _ = obj.GetString("conversation")
682 }
683 if ot == "Question" {
684 if what == "honk" {
685 what = "qonk"
686 }
687 content += "<ul>"
688 ans, _ := obj.GetArray("oneOf")
689 for _, ai := range ans {
690 a, ok := ai.(junk.Junk)
691 if !ok {
692 continue
693 }
694 as, _ := a.GetString("name")
695 content += "<li>" + as
696 }
697 ans, _ = obj.GetArray("anyOf")
698 for _, ai := range ans {
699 a, ok := ai.(junk.Junk)
700 if !ok {
701 continue
702 }
703 as, _ := a.GetString("name")
704 content += "<li>" + as
705 }
706 content += "</ul>"
707 }
708 if ot == "Move" {
709 targ, _ := obj.GetString("target")
710 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
711 }
712 if what == "honk" && rid != "" {
713 what = "tonk"
714 }
715 atts, _ := obj.GetArray("attachment")
716 for i, atti := range atts {
717 if rejectxonk(&xonk) {
718 log.Printf("skipping rejected attachment: %s", xid)
719 continue
720 }
721 att, ok := atti.(junk.Junk)
722 if !ok {
723 continue
724 }
725 at, _ := att.GetString("type")
726 mt, _ := att.GetString("mediaType")
727 u, _ := att.GetString("url")
728 name, _ := att.GetString("name")
729 desc, _ := att.GetString("summary")
730 if desc == "" {
731 desc = name
732 }
733 localize := false
734 if i > 4 {
735 log.Printf("excessive attachment: %s", at)
736 } else if at == "Document" || at == "Image" {
737 mt = strings.ToLower(mt)
738 log.Printf("attachment: %s %s", mt, u)
739 if mt == "text/plain" || mt == "application/pdf" ||
740 strings.HasPrefix(mt, "image") {
741 localize = true
742 }
743 } else {
744 log.Printf("unknown attachment: %s", at)
745 }
746 if skipMedia(&xonk) {
747 localize = false
748 }
749 donk := savedonk(u, name, desc, mt, localize)
750 if donk != nil {
751 xonk.Donks = append(xonk.Donks, donk)
752 }
753 }
754 tags, _ := obj.GetArray("tag")
755 for _, tagi := range tags {
756 if rejectxonk(&xonk) {
757 log.Printf("skipping rejected attachment: %s", xid)
758 continue
759 }
760 tag, ok := tagi.(junk.Junk)
761 if !ok {
762 continue
763 }
764 tt, _ := tag.GetString("type")
765 name, _ := tag.GetString("name")
766 desc, _ := tag.GetString("summary")
767 if desc == "" {
768 desc = name
769 }
770 if tt == "Emoji" {
771 icon, _ := tag.GetMap("icon")
772 mt, _ := icon.GetString("mediaType")
773 if mt == "" {
774 mt = "image/png"
775 }
776 u, _ := icon.GetString("url")
777 donk := savedonk(u, name, desc, mt, true)
778 if donk != nil {
779 xonk.Donks = append(xonk.Donks, donk)
780 }
781 }
782 if tt == "Hashtag" {
783 if name == "" || name == "#" {
784 // skip it
785 } else {
786 if name[0] != '#' {
787 name = "#" + name
788 }
789 xonk.Onts = append(xonk.Onts, name)
790 }
791 }
792 if tt == "Place" {
793 p := new(Place)
794 p.Name = name
795 p.Latitude, _ = tag["latitude"].(float64)
796 p.Longitude, _ = tag["longitude"].(float64)
797 p.Url, _ = tag.GetString("url")
798 xonk.Place = p
799 }
800 if tt == "Mention" {
801 var m Mention
802 m.Who, _ = tag.GetString("name")
803 m.Where, _ = tag.GetString("href")
804 mentions = append(mentions, m)
805 }
806 }
807 if starttime, ok := obj.GetString("startTime"); ok {
808 if start, err := time.Parse(time.RFC3339, starttime); err == nil {
809 t := new(Time)
810 t.StartTime = start
811 endtime, _ := obj.GetString("endTime")
812 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
813 dura, _ := obj.GetString("duration")
814 if strings.HasPrefix(dura, "PT") {
815 dura = strings.ToLower(dura[2:])
816 d, _ := time.ParseDuration(dura)
817 t.Duration = Duration(d)
818 }
819 xonk.Time = t
820 }
821 }
822 if loca, ok := obj.GetMap("location"); ok {
823 if tt, _ := loca.GetString("type"); tt == "Place" {
824 p := new(Place)
825 p.Name, _ = loca.GetString("name")
826 p.Latitude, _ = loca["latitude"].(float64)
827 p.Longitude, _ = loca["longitude"].(float64)
828 p.Url, _ = loca.GetString("url")
829 xonk.Place = p
830 }
831 }
832
833 xonk.Onts = oneofakind(xonk.Onts)
834 replyobj, ok := obj.GetMap("replies")
835 if ok {
836 items, ok := replyobj.GetArray("items")
837 if !ok {
838 first, ok := replyobj.GetMap("first")
839 if ok {
840 items, _ = first.GetArray("items")
841 }
842 }
843 for _, repl := range items {
844 s, ok := repl.(string)
845 if ok {
846 replies = append(replies, s)
847 }
848 }
849 }
850
851 }
852
853 if currenttid == "" {
854 currenttid = convoy
855 }
856
857 if len(content) > 90001 {
858 log.Printf("content too long. truncating")
859 content = content[:90001]
860 }
861
862 // init xonk
863 xonk.What = what
864 xonk.RID = rid
865 xonk.Date, _ = time.Parse(time.RFC3339, dt)
866 xonk.URL = url
867 xonk.Noise = content
868 xonk.Precis = precis
869 xonk.Format = "html"
870 xonk.Convoy = convoy
871 xonk.Mentions = mentions
872 for _, m := range mentions {
873 if m.Where == user.URL {
874 xonk.Whofore = 1
875 }
876 }
877 imaginate(&xonk)
878
879 if isUpdate {
880 log.Printf("something has changed! %s", xonk.XID)
881 prev := getxonk(user.ID, xonk.XID)
882 if prev == nil {
883 log.Printf("didn't find old version for update: %s", xonk.XID)
884 isUpdate = false
885 } else {
886 xonk.ID = prev.ID
887 updatehonk(&xonk)
888 }
889 }
890 if !isUpdate && needxonk(user, &xonk) {
891 if rid != "" {
892 if needxonkid(user, rid) {
893 goingup++
894 saveonemore(rid)
895 goingup--
896 }
897 if convoy == "" {
898 xx := getxonk(user.ID, rid)
899 if xx != nil {
900 convoy = xx.Convoy
901 }
902 }
903 }
904 if convoy == "" {
905 convoy = currenttid
906 }
907 if convoy == "" {
908 convoy = "data:,missing-" + xfiltrate()
909 currenttid = convoy
910 }
911 xonk.Convoy = convoy
912 savexonk(&xonk)
913 }
914 if goingup == 0 {
915 for _, replid := range replies {
916 if needxonkid(user, replid) {
917 log.Printf("missing a reply: %s", replid)
918 saveonemore(replid)
919 }
920 }
921 }
922 return &xonk
923 }
924
925 return xonkxonkfn(item, origin)
926}
927
928func dumpactivity(item junk.Junk) {
929 fd, err := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
930 if err != nil {
931 log.Printf("error opening inbox! %s", err)
932 return
933 }
934 defer fd.Close()
935 item.Write(fd)
936 io.WriteString(fd, "\n")
937}
938
939func rubadubdub(user *WhatAbout, req junk.Junk) {
940 xid, _ := req.GetString("id")
941 actor, _ := req.GetString("actor")
942 j := junk.New()
943 j["@context"] = itiswhatitis
944 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
945 j["type"] = "Accept"
946 j["actor"] = user.URL
947 j["to"] = actor
948 j["published"] = time.Now().UTC().Format(time.RFC3339)
949 j["object"] = req
950
951 deliverate(0, user.ID, actor, j.ToBytes())
952}
953
954func itakeitallback(user *WhatAbout, xid string) {
955 j := junk.New()
956 j["@context"] = itiswhatitis
957 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
958 j["type"] = "Undo"
959 j["actor"] = user.URL
960 j["to"] = xid
961 f := junk.New()
962 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
963 f["type"] = "Follow"
964 f["actor"] = user.URL
965 f["to"] = xid
966 f["object"] = xid
967 j["object"] = f
968 j["published"] = time.Now().UTC().Format(time.RFC3339)
969
970 deliverate(0, user.ID, xid, j.ToBytes())
971}
972
973func subsub(user *WhatAbout, xid string, owner string) {
974 if xid == "" {
975 log.Printf("can't subscribe to empty")
976 return
977 }
978 j := junk.New()
979 j["@context"] = itiswhatitis
980 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
981 j["type"] = "Follow"
982 j["actor"] = user.URL
983 j["to"] = owner
984 j["object"] = xid
985 j["published"] = time.Now().UTC().Format(time.RFC3339)
986
987 deliverate(0, user.ID, owner, j.ToBytes())
988}
989
990// returns activity, object
991func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
992 dt := h.Date.Format(time.RFC3339)
993 var jo junk.Junk
994 j := junk.New()
995 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
996 j["actor"] = user.URL
997 j["published"] = dt
998 if h.Public {
999 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
1000 } else {
1001 j["to"] = h.Audience[0]
1002 }
1003 if len(h.Audience) > 1 {
1004 j["cc"] = h.Audience[1:]
1005 }
1006
1007 switch h.What {
1008 case "update":
1009 fallthrough
1010 case "tonk":
1011 fallthrough
1012 case "event":
1013 fallthrough
1014 case "honk":
1015 j["type"] = "Create"
1016 if h.What == "update" {
1017 j["type"] = "Update"
1018 }
1019
1020 jo = junk.New()
1021 jo["id"] = h.XID
1022 jo["type"] = "Note"
1023 if h.What == "event" {
1024 jo["type"] = "Event"
1025 }
1026 jo["published"] = dt
1027 jo["url"] = h.XID
1028 jo["attributedTo"] = user.URL
1029 if h.RID != "" {
1030 jo["inReplyTo"] = h.RID
1031 }
1032 if h.Convoy != "" {
1033 jo["context"] = h.Convoy
1034 jo["conversation"] = h.Convoy
1035 }
1036 jo["to"] = h.Audience[0]
1037 if len(h.Audience) > 1 {
1038 jo["cc"] = h.Audience[1:]
1039 }
1040 if !h.Public {
1041 jo["directMessage"] = true
1042 }
1043 var mentions []Mention
1044 if len(h.Mentions) > 0 {
1045 mentions = h.Mentions
1046 } else {
1047 mentions = bunchofgrapes(h.Noise)
1048 }
1049 translate(h)
1050 redoimages(h)
1051 if h.Precis != "" {
1052 jo["sensitive"] = true
1053 }
1054
1055 var replies []string
1056 for _, reply := range h.Replies {
1057 replies = append(replies, reply.XID)
1058 }
1059 if len(replies) > 0 {
1060 jr := junk.New()
1061 jr["type"] = "Collection"
1062 jr["totalItems"] = len(replies)
1063 jr["items"] = replies
1064 jo["replies"] = jr
1065 }
1066
1067 var tags []junk.Junk
1068 for _, m := range mentions {
1069 t := junk.New()
1070 t["type"] = "Mention"
1071 t["name"] = m.Who
1072 t["href"] = m.Where
1073 tags = append(tags, t)
1074 }
1075 for _, o := range h.Onts {
1076 t := junk.New()
1077 t["type"] = "Hashtag"
1078 o = strings.ToLower(o)
1079 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1080 t["name"] = o
1081 tags = append(tags, t)
1082 }
1083 for _, e := range herdofemus(h.Noise) {
1084 t := junk.New()
1085 t["id"] = e.ID
1086 t["type"] = "Emoji"
1087 t["name"] = e.Name
1088 i := junk.New()
1089 i["type"] = "Image"
1090 i["mediaType"] = "image/png"
1091 i["url"] = e.ID
1092 t["icon"] = i
1093 tags = append(tags, t)
1094 }
1095 for _, e := range bloat_fixupflags(h) {
1096 t := junk.New()
1097 t["id"] = e.ID
1098 t["type"] = "Emoji"
1099 t["name"] = e.Name
1100 i := junk.New()
1101 i["type"] = "Image"
1102 i["mediaType"] = "image/png"
1103 i["url"] = e.ID
1104 t["icon"] = i
1105 tags = append(tags, t)
1106 }
1107 if len(tags) > 0 {
1108 jo["tag"] = tags
1109 }
1110 if p := h.Place; p != nil {
1111 t := junk.New()
1112 t["type"] = "Place"
1113 if p.Name != "" {
1114 t["name"] = p.Name
1115 }
1116 if p.Latitude != 0 {
1117 t["latitude"] = p.Latitude
1118 }
1119 if p.Longitude != 0 {
1120 t["longitude"] = p.Longitude
1121 }
1122 if p.Url != "" {
1123 t["url"] = p.Url
1124 }
1125 jo["location"] = t
1126 }
1127 if t := h.Time; t != nil {
1128 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1129 if t.Duration != 0 {
1130 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1131 }
1132 }
1133 var atts []junk.Junk
1134 for _, d := range h.Donks {
1135 if re_emus.MatchString(d.Name) {
1136 continue
1137 }
1138 jd := junk.New()
1139 jd["mediaType"] = d.Media
1140 jd["name"] = d.Name
1141 jd["summary"] = html.EscapeString(d.Desc)
1142 jd["type"] = "Document"
1143 jd["url"] = d.URL
1144 atts = append(atts, jd)
1145 }
1146 if len(atts) > 0 {
1147 jo["attachment"] = atts
1148 }
1149 jo["summary"] = html.EscapeString(h.Precis)
1150 jo["content"] = h.Noise
1151 j["object"] = jo
1152 case "bonk":
1153 j["type"] = "Announce"
1154 if h.Convoy != "" {
1155 j["context"] = h.Convoy
1156 }
1157 j["object"] = h.XID
1158 case "unbonk":
1159 b := junk.New()
1160 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1161 b["type"] = "Announce"
1162 b["actor"] = user.URL
1163 if h.Convoy != "" {
1164 b["context"] = h.Convoy
1165 }
1166 b["object"] = h.XID
1167 j["type"] = "Undo"
1168 j["object"] = b
1169 case "zonk":
1170 j["type"] = "Delete"
1171 j["object"] = h.XID
1172 case "ack":
1173 j["type"] = "Read"
1174 j["object"] = h.XID
1175 if h.Convoy != "" {
1176 j["context"] = h.Convoy
1177 }
1178 case "react":
1179 j["type"] = "EmojiReact"
1180 j["object"] = h.XID
1181 if h.Convoy != "" {
1182 j["context"] = h.Convoy
1183 }
1184 j["content"] = h.Noise
1185 case "deack":
1186 b := junk.New()
1187 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1188 b["type"] = "Read"
1189 b["actor"] = user.URL
1190 b["object"] = h.XID
1191 if h.Convoy != "" {
1192 b["context"] = h.Convoy
1193 }
1194 j["type"] = "Undo"
1195 j["object"] = b
1196 }
1197
1198 return j, jo
1199}
1200
1201var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1202 row := stmtAnyXonk.QueryRow(xid)
1203 honk := scanhonk(row)
1204 if honk == nil || !honk.Public {
1205 return nil, true
1206 }
1207 user, _ := butwhatabout(honk.Username)
1208 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1209 reversehonks(rawhonks)
1210 for _, h := range rawhonks {
1211 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1212 honk.Replies = append(honk.Replies, h)
1213 }
1214 }
1215 donksforhonks([]*Honk{honk})
1216 _, j := jonkjonk(user, honk)
1217 j["@context"] = itiswhatitis
1218
1219 return j.ToBytes(), true
1220}, Limit: 128})
1221
1222func gimmejonk(xid string) ([]byte, bool) {
1223 var j []byte
1224 ok := oldjonks.Get(xid, &j)
1225 return j, ok
1226}
1227
1228func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1229 rcpts := make(map[string]bool)
1230 for _, a := range addresses {
1231 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1232 continue
1233 }
1234 if a[0] == '%' {
1235 rcpts[a] = true
1236 continue
1237 }
1238 var box *Box
1239 ok := boxofboxes.Get(a, &box)
1240 if ok && useshared && box.Shared != "" {
1241 rcpts["%"+box.Shared] = true
1242 } else {
1243 rcpts[a] = true
1244 }
1245 }
1246 return rcpts
1247}
1248
1249func honkworldwide(user *WhatAbout, honk *Honk) {
1250 jonk, _ := jonkjonk(user, honk)
1251 jonk["@context"] = itiswhatitis
1252 msg := jonk.ToBytes()
1253
1254 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1255
1256 if honk.Public {
1257 for _, h := range getdubs(user.ID) {
1258 if h.XID == user.URL {
1259 continue
1260 }
1261 var box *Box
1262 ok := boxofboxes.Get(h.XID, &box)
1263 if ok && box.Shared != "" {
1264 rcpts["%"+box.Shared] = true
1265 } else {
1266 rcpts[h.XID] = true
1267 }
1268 }
1269 for _, f := range getbacktracks(honk.XID) {
1270 rcpts[f] = true
1271 }
1272 }
1273 for a := range rcpts {
1274 go deliverate(0, user.ID, a, msg)
1275 }
1276 if honk.Public && len(honk.Onts) > 0 {
1277 collectiveaction(honk)
1278 }
1279}
1280
1281func collectiveaction(honk *Honk) {
1282 user := getserveruser()
1283 for _, ont := range honk.Onts {
1284 dubs := getnameddubs(serverUID, ont)
1285 if len(dubs) == 0 {
1286 continue
1287 }
1288 j := junk.New()
1289 j["@context"] = itiswhatitis
1290 j["type"] = "Add"
1291 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1292 j["actor"] = user.URL
1293 j["object"] = honk.XID
1294 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1295 rcpts := make(map[string]bool)
1296 for _, dub := range dubs {
1297 var box *Box
1298 ok := boxofboxes.Get(dub.XID, &box)
1299 if ok && box.Shared != "" {
1300 rcpts["%"+box.Shared] = true
1301 } else {
1302 rcpts[dub.XID] = true
1303 }
1304 }
1305 msg := j.ToBytes()
1306 for a := range rcpts {
1307 go deliverate(0, user.ID, a, msg)
1308 }
1309 }
1310}
1311
1312func junkuser(user *WhatAbout) junk.Junk {
1313 about := markitzero(user.About)
1314
1315 j := junk.New()
1316 j["@context"] = itiswhatitis
1317 j["id"] = user.URL
1318 j["inbox"] = user.URL + "/inbox"
1319 j["outbox"] = user.URL + "/outbox"
1320 j["name"] = user.Display
1321 j["preferredUsername"] = user.Name
1322 j["summary"] = about
1323 if user.ID > 0 {
1324 j["type"] = "Person"
1325 j["url"] = user.URL
1326 j["followers"] = user.URL + "/followers"
1327 j["following"] = user.URL + "/following"
1328 a := junk.New()
1329 a["type"] = "Image"
1330 a["mediaType"] = "image/png"
1331 if ava := user.Options.Avatar; ava != "" {
1332 a["url"] = ava
1333 } else {
1334 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1335 }
1336 j["icon"] = a
1337 } else {
1338 j["type"] = "Service"
1339 }
1340 k := junk.New()
1341 k["id"] = user.URL + "#key"
1342 k["owner"] = user.URL
1343 k["publicKeyPem"] = user.Key
1344 j["publicKey"] = k
1345
1346 return j
1347}
1348
1349var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1350 user, err := butwhatabout(name)
1351 if err != nil {
1352 return nil, false
1353 }
1354 var buf bytes.Buffer
1355 j := junkuser(user)
1356 j.Write(&buf)
1357 return buf.Bytes(), true
1358}, Duration: 1 * time.Minute})
1359
1360func asjonker(name string) ([]byte, bool) {
1361 var j []byte
1362 ok := oldjonkers.Get(name, &j)
1363 return j, ok
1364}
1365
1366var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1367 m := strings.Split(name, "@")
1368 if len(m) != 2 {
1369 log.Printf("bad fish name: %s", name)
1370 return "", true
1371 }
1372 var href string
1373 row := stmtGetXonker.QueryRow(name, "fishname")
1374 err := row.Scan(&href)
1375 if err == nil {
1376 return href, true
1377 }
1378 log.Printf("fishing for %s", name)
1379 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1380 if err != nil {
1381 log.Printf("failed to go fish %s: %s", name, err)
1382 return "", true
1383 }
1384 links, _ := j.GetArray("links")
1385 for _, li := range links {
1386 l, ok := li.(junk.Junk)
1387 if !ok {
1388 continue
1389 }
1390 href, _ := l.GetString("href")
1391 rel, _ := l.GetString("rel")
1392 t, _ := l.GetString("type")
1393 if rel == "self" && friendorfoe(t) {
1394 when := time.Now().UTC().Format(dbtimeformat)
1395 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1396 if err != nil {
1397 log.Printf("error saving fishname: %s", err)
1398 }
1399 return href, true
1400 }
1401 }
1402 return href, true
1403}, Duration: 1 * time.Minute})
1404
1405func gofish(name string) string {
1406 if name[0] == '@' {
1407 name = name[1:]
1408 }
1409 var href string
1410 handfull.Get(name, &href)
1411 return href
1412}
1413
1414func investigate(name string) (*SomeThing, error) {
1415 if name == "" {
1416 return nil, fmt.Errorf("no name")
1417 }
1418 if name[0] == '@' {
1419 name = gofish(name)
1420 }
1421 if name == "" {
1422 return nil, fmt.Errorf("no name")
1423 }
1424 obj, err := GetJunkFast(name)
1425 if err != nil {
1426 return nil, err
1427 }
1428 allinjest(originate(name), obj)
1429 return somethingabout(obj)
1430}
1431
1432func somethingabout(obj junk.Junk) (*SomeThing, error) {
1433 info := new(SomeThing)
1434 t, _ := obj.GetString("type")
1435 switch t {
1436 case "Person":
1437 fallthrough
1438 case "Organization":
1439 fallthrough
1440 case "Application":
1441 fallthrough
1442 case "Service":
1443 info.What = SomeActor
1444 case "OrderedCollection":
1445 fallthrough
1446 case "Collection":
1447 info.What = SomeCollection
1448 default:
1449 return nil, fmt.Errorf("unknown object type")
1450 }
1451 info.XID, _ = obj.GetString("id")
1452 info.Name, _ = obj.GetString("preferredUsername")
1453 if info.Name == "" {
1454 info.Name, _ = obj.GetString("name")
1455 }
1456 info.Owner, _ = obj.GetString("attributedTo")
1457 if info.Owner == "" {
1458 info.Owner = info.XID
1459 }
1460 return info, nil
1461}
1462
1463func allinjest(origin string, obj junk.Junk) {
1464 keyobj, ok := obj.GetMap("publicKey")
1465 if ok {
1466 ingestpubkey(origin, keyobj)
1467 }
1468 ingestboxes(origin, obj)
1469 ingesthandle(origin, obj)
1470}
1471
1472func ingestpubkey(origin string, obj junk.Junk) {
1473 keyobj, ok := obj.GetMap("publicKey")
1474 if ok {
1475 obj = keyobj
1476 }
1477 keyname, ok := obj.GetString("id")
1478 var data string
1479 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1480 err := row.Scan(&data)
1481 if err == nil {
1482 return
1483 }
1484 if !ok || origin != originate(keyname) {
1485 log.Printf("bad key origin %s <> %s", origin, keyname)
1486 return
1487 }
1488 log.Printf("ingesting a needed pubkey: %s", keyname)
1489 owner, ok := obj.GetString("owner")
1490 if !ok {
1491 log.Printf("error finding %s pubkey owner", keyname)
1492 return
1493 }
1494 data, ok = obj.GetString("publicKeyPem")
1495 if !ok {
1496 log.Printf("error finding %s pubkey", keyname)
1497 return
1498 }
1499 if originate(owner) != origin {
1500 log.Printf("bad key owner: %s <> %s", owner, origin)
1501 return
1502 }
1503 _, _, err = httpsig.DecodeKey(data)
1504 if err != nil {
1505 log.Printf("error decoding %s pubkey: %s", keyname, err)
1506 return
1507 }
1508 when := time.Now().UTC().Format(dbtimeformat)
1509 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1510 if err != nil {
1511 log.Printf("error saving key: %s", err)
1512 }
1513}
1514
1515func ingestboxes(origin string, obj junk.Junk) {
1516 ident, _ := obj.GetString("id")
1517 if ident == "" {
1518 return
1519 }
1520 if originate(ident) != origin {
1521 return
1522 }
1523 var info string
1524 row := stmtGetXonker.QueryRow(ident, "boxes")
1525 err := row.Scan(&info)
1526 if err == nil {
1527 return
1528 }
1529 log.Printf("ingesting boxes: %s", ident)
1530 inbox, _ := obj.GetString("inbox")
1531 outbox, _ := obj.GetString("outbox")
1532 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1533 if inbox != "" {
1534 when := time.Now().UTC().Format(dbtimeformat)
1535 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1536 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1537 if err != nil {
1538 log.Printf("error saving boxes: %s", err)
1539 }
1540 }
1541}
1542
1543func ingesthandle(origin string, obj junk.Junk) {
1544 xid, _ := obj.GetString("id")
1545 if xid == "" {
1546 return
1547 }
1548 if originate(xid) != origin {
1549 return
1550 }
1551 var handle string
1552 row := stmtGetXonker.QueryRow(xid, "handle")
1553 err := row.Scan(&handle)
1554 if err == nil {
1555 return
1556 }
1557 handle, _ = obj.GetString("preferredUsername")
1558 if handle != "" {
1559 when := time.Now().UTC().Format(dbtimeformat)
1560 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1561 if err != nil {
1562 log.Printf("error saving handle: %s", err)
1563 }
1564 }
1565}
1566
1567func updateMe(username string) {
1568 var user *WhatAbout
1569 somenamedusers.Get(username, &user)
1570 dt := time.Now().UTC().Format(time.RFC3339)
1571 j := junk.New()
1572 j["@context"] = itiswhatitis
1573 j["id"] = fmt.Sprintf("%s/upme/%s/%d", user.URL, user.Name, time.Now().Unix())
1574 j["actor"] = user.URL
1575 j["published"] = dt
1576 j["to"] = []string{thewholeworld, user.URL + "/followers"}
1577 j["type"] = "Update"
1578 j["object"] = junkuser(user)
1579
1580 msg := j.ToBytes()
1581
1582 rcpts := make(map[string]bool)
1583 for _, f := range getdubs(user.ID) {
1584 if f.XID == user.URL {
1585 continue
1586 }
1587 var box *Box
1588 boxofboxes.Get(f.XID, &box)
1589 if box != nil && box.Shared != "" {
1590 rcpts["%"+box.Shared] = true
1591 } else {
1592 rcpts[f.XID] = true
1593 }
1594 }
1595 for a := range rcpts {
1596 go deliverate(0, user.ID, a, msg)
1597 }
1598}