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