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 "crypto/rsa"
21 "database/sql"
22 "fmt"
23 "html"
24 "io"
25 "log"
26 notrand "math/rand"
27 "net/http"
28 "net/url"
29 "os"
30 "regexp"
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/image"
38 "humungus.tedunangst.com/r/webs/junk"
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
60func PostJunk(keyname string, key *rsa.PrivateKey, url string, j junk.Junk) error {
61 return PostMsg(keyname, key, url, j.ToBytes())
62}
63
64func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
65 client := http.DefaultClient
66 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
67 if err != nil {
68 return err
69 }
70 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
71 req.Header.Set("Content-Type", theonetruename)
72 httpsig.SignRequest(keyname, key, req, msg)
73 resp, err := client.Do(req)
74 if err != nil {
75 return err
76 }
77 resp.Body.Close()
78 switch resp.StatusCode {
79 case 200:
80 case 201:
81 case 202:
82 default:
83 return fmt.Errorf("http post status: %d", resp.StatusCode)
84 }
85 log.Printf("successful post: %s %d", url, resp.StatusCode)
86 return nil
87}
88
89type JunkError struct {
90 Junk junk.Junk
91 Err error
92}
93
94func GetJunk(url string) (junk.Junk, error) {
95 return GetJunkTimeout(url, 30*time.Second)
96}
97
98func GetJunkFast(url string) (junk.Junk, error) {
99 return GetJunkTimeout(url, 5*time.Second)
100}
101
102func GetJunkHardMode(url string) (junk.Junk, error) {
103 j, err := GetJunk(url)
104 if err != nil {
105 emsg := err.Error()
106 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
107 log.Printf("trying again after error: %s", emsg)
108 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
109 j, err = GetJunk(url)
110 if err != nil {
111 log.Printf("still couldn't get it")
112 } else {
113 log.Printf("retry success!")
114 }
115 }
116 }
117 return j, err
118}
119
120var flightdeck = gate.NewSerializer()
121
122func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
123
124 fn := func() (interface{}, error) {
125 at := thefakename
126 if strings.Contains(url, ".well-known/webfinger?resource") {
127 at = "application/jrd+json"
128 }
129 j, err := junk.Get(url, junk.GetArgs{
130 Accept: at,
131 Agent: "honksnonk/5.0; " + serverName,
132 Timeout: timeout,
133 })
134 return j, err
135 }
136
137 ji, err := flightdeck.Call(url, fn)
138 if err != nil {
139 return nil, err
140 }
141 j := ji.(junk.Junk)
142 return j, nil
143}
144
145func savedonk(url string, name, desc, media string, localize bool) *Donk {
146 if url == "" {
147 return nil
148 }
149 donk := finddonk(url)
150 if donk != nil {
151 return donk
152 }
153 donk = new(Donk)
154 log.Printf("saving donk: %s", url)
155 xid := xfiltrate()
156 data := []byte{}
157 if localize {
158 resp, err := http.Get(url)
159 if err != nil {
160 log.Printf("error fetching %s: %s", url, err)
161 localize = false
162 goto saveit
163 }
164 defer resp.Body.Close()
165 if resp.StatusCode != 200 {
166 localize = false
167 goto saveit
168 }
169 var buf bytes.Buffer
170 limiter := io.LimitReader(resp.Body, 10*1024*1024)
171 io.Copy(&buf, limiter)
172
173 data = buf.Bytes()
174 if len(data) == 10*1024*1024 {
175 log.Printf("truncation likely")
176 }
177 if strings.HasPrefix(media, "image") {
178 img, err := image.Vacuum(&buf,
179 image.Params{LimitSize: 4200 * 4200, MaxWidth: 2048, MaxHeight: 2048})
180 if err != nil {
181 log.Printf("unable to decode image: %s", err)
182 localize = false
183 data = []byte{}
184 goto saveit
185 }
186 data = img.Data
187 format := img.Format
188 media = "image/" + format
189 if format == "jpeg" {
190 format = "jpg"
191 }
192 xid = xid + "." + format
193 } else if len(data) > 100000 {
194 log.Printf("not saving large attachment")
195 localize = false
196 data = []byte{}
197 }
198 }
199saveit:
200 fileid, err := savefile(xid, name, desc, url, media, localize, data)
201 if err != nil {
202 log.Printf("error saving file %s: %s", url, err)
203 return nil
204 }
205 donk.FileID = fileid
206 donk.XID = xid
207 return donk
208}
209
210func iszonked(userid int64, xid string) bool {
211 row := stmtFindZonk.QueryRow(userid, xid)
212 var id int64
213 err := row.Scan(&id)
214 if err == nil {
215 return true
216 }
217 if err != sql.ErrNoRows {
218 log.Printf("error querying zonk: %s", err)
219 }
220 return false
221}
222
223func needxonk(user *WhatAbout, x *Honk) bool {
224 if rejectxonk(x) {
225 return false
226 }
227 return needxonkid(user, x.XID)
228}
229func needxonkid(user *WhatAbout, xid string) bool {
230 if strings.HasPrefix(xid, user.URL+"/") {
231 return false
232 }
233 if rejectorigin(user.ID, xid) {
234 return false
235 }
236 if iszonked(user.ID, xid) {
237 log.Printf("already zonked: %s", xid)
238 return false
239 }
240 row := stmtFindXonk.QueryRow(user.ID, xid)
241 var id int64
242 err := row.Scan(&id)
243 if err == nil {
244 return false
245 }
246 if err != sql.ErrNoRows {
247 log.Printf("error querying xonk: %s", err)
248 }
249 return true
250}
251
252func eradicatexonk(userid int64, xid string) {
253 xonk := getxonk(userid, xid)
254 if xonk != nil {
255 deletehonk(xonk.ID)
256 }
257 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
258 if err != nil {
259 log.Printf("error eradicating: %s", err)
260 }
261}
262
263func savexonk(x *Honk) {
264 log.Printf("saving xonk: %s", x.XID)
265 go handles(x.Honker)
266 go handles(x.Oonker)
267 savehonk(x)
268}
269
270type Box struct {
271 In string
272 Out string
273 Shared string
274}
275
276var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
277 var info string
278 row := stmtGetXonker.QueryRow(ident, "boxes")
279 err := row.Scan(&info)
280 if err == nil {
281 m := strings.Split(info, " ")
282 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
283 return b, true
284 }
285 j, err := GetJunk(ident)
286 if err != nil {
287 log.Printf("error getting boxes: %s", err)
288 return nil, false
289 }
290 inbox, _ := j.GetString("inbox")
291 outbox, _ := j.GetString("outbox")
292 sbox, _ := j.GetString("endpoints", "sharedInbox")
293 b := &Box{In: inbox, Out: outbox, Shared: sbox}
294 if inbox != "" {
295 m := strings.Join([]string{inbox, outbox, sbox}, " ")
296 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
297 if err != nil {
298 log.Printf("error saving boxes: %s", err)
299 }
300 }
301 return b, true
302}})
303
304func gimmexonks(user *WhatAbout, outbox string) {
305 log.Printf("getting outbox: %s", outbox)
306 j, err := GetJunk(outbox)
307 if err != nil {
308 log.Printf("error getting outbox: %s", err)
309 return
310 }
311 t, _ := j.GetString("type")
312 origin := originate(outbox)
313 if t == "OrderedCollection" {
314 items, _ := j.GetArray("orderedItems")
315 if items == nil {
316 items, _ = j.GetArray("items")
317 }
318 if items == nil {
319 obj, ok := j.GetMap("first")
320 if ok {
321 items, _ = obj.GetArray("orderedItems")
322 } else {
323 page1, ok := j.GetString("first")
324 if ok {
325 j, err = GetJunk(page1)
326 if err != nil {
327 log.Printf("error gettings page1: %s", err)
328 return
329 }
330 items, _ = j.GetArray("orderedItems")
331 }
332 }
333 }
334 if len(items) > 20 {
335 items = items[0:20]
336 }
337 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
338 items[i], items[j] = items[j], items[i]
339 }
340 for _, item := range items {
341 obj, ok := item.(junk.Junk)
342 if ok {
343 xonksaver(user, obj, origin)
344 continue
345 }
346 xid, ok := item.(string)
347 if ok {
348 if !needxonkid(user, xid) {
349 continue
350 }
351 obj, err = GetJunk(xid)
352 if err != nil {
353 log.Printf("error getting item: %s", err)
354 continue
355 }
356 xonksaver(user, obj, originate(xid))
357 }
358 }
359 }
360}
361
362func whosthere(xid string) ([]string, string) {
363 obj, err := GetJunk(xid)
364 if err != nil {
365 log.Printf("error getting remote xonk: %s", err)
366 return nil, ""
367 }
368 convoy, _ := obj.GetString("context")
369 if convoy == "" {
370 convoy, _ = obj.GetString("conversation")
371 }
372 return newphone(nil, obj), convoy
373}
374
375func newphone(a []string, obj junk.Junk) []string {
376 for _, addr := range []string{"to", "cc", "attributedTo"} {
377 who, _ := obj.GetString(addr)
378 if who != "" {
379 a = append(a, who)
380 }
381 whos, _ := obj.GetArray(addr)
382 for _, w := range whos {
383 who, _ := w.(string)
384 if who != "" {
385 a = append(a, who)
386 }
387 }
388 }
389 return a
390}
391
392func extractattrto(obj junk.Junk) string {
393 who, _ := obj.GetString("attributedTo")
394 if who != "" {
395 return who
396 }
397 o, ok := obj.GetMap("attributedTo")
398 if ok {
399 id, ok := o.GetString("id")
400 if ok {
401 return id
402 }
403 }
404 arr, _ := obj.GetArray("attributedTo")
405 for _, a := range arr {
406 o, ok := a.(junk.Junk)
407 if ok {
408 t, _ := o.GetString("type")
409 id, _ := o.GetString("id")
410 if t == "Person" || t == "" {
411 return id
412 }
413 }
414 s, ok := a.(string)
415 if ok {
416 return s
417 }
418 }
419 return ""
420}
421
422func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
423 depth := 0
424 maxdepth := 10
425 currenttid := ""
426 goingup := 0
427 var xonkxonkfn func(item junk.Junk, origin string) *Honk
428
429 saveonemore := func(xid string) {
430 log.Printf("getting onemore: %s", xid)
431 if depth >= maxdepth {
432 log.Printf("in too deep")
433 return
434 }
435 obj, err := GetJunkHardMode(xid)
436 if err != nil {
437 log.Printf("error getting onemore: %s: %s", xid, err)
438 return
439 }
440 depth++
441 xonkxonkfn(obj, originate(xid))
442 depth--
443 }
444
445 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
446 // id, _ := item.GetString( "id")
447 what, _ := item.GetString("type")
448 dt, _ := item.GetString("published")
449
450 var err error
451 var xid, rid, url, content, precis, convoy string
452 var replies []string
453 var obj junk.Junk
454 var ok bool
455 isUpdate := false
456 switch what {
457 case "Delete":
458 obj, ok = item.GetMap("object")
459 if ok {
460 xid, _ = obj.GetString("id")
461 } else {
462 xid, _ = item.GetString("object")
463 }
464 if xid == "" {
465 return nil
466 }
467 if originate(xid) != origin {
468 log.Printf("forged delete: %s", xid)
469 return nil
470 }
471 log.Printf("eradicating %s", xid)
472 eradicatexonk(user.ID, xid)
473 return nil
474 case "Tombstone":
475 xid, _ = item.GetString("id")
476 if xid == "" {
477 return nil
478 }
479 if originate(xid) != origin {
480 log.Printf("forged delete: %s", xid)
481 return nil
482 }
483 log.Printf("eradicating %s", xid)
484 eradicatexonk(user.ID, xid)
485 return nil
486 case "Announce":
487 obj, ok = item.GetMap("object")
488 if ok {
489 xid, _ = obj.GetString("id")
490 } else {
491 xid, _ = item.GetString("object")
492 }
493 if !needxonkid(user, xid) {
494 return nil
495 }
496 log.Printf("getting bonk: %s", xid)
497 obj, err = GetJunkHardMode(xid)
498 if err != nil {
499 log.Printf("error getting bonk: %s: %s", xid, err)
500 }
501 origin = originate(xid)
502 what = "bonk"
503 case "Update":
504 isUpdate = true
505 fallthrough
506 case "Create":
507 obj, ok = item.GetMap("object")
508 if !ok {
509 xid, _ = item.GetString("object")
510 log.Printf("getting created honk: %s", xid)
511 obj, err = GetJunkHardMode(xid)
512 if err != nil {
513 log.Printf("error getting creation: %s", err)
514 }
515 }
516 what = "honk"
517 if obj != nil {
518 t, _ := obj.GetString("type")
519 switch t {
520 case "Event":
521 what = "event"
522 }
523 }
524 case "Read":
525 xid, ok = item.GetString("object")
526 if ok {
527 if !needxonkid(user, xid) {
528 log.Printf("don't need read obj: %s", xid)
529 return nil
530 }
531 obj, err = GetJunkHardMode(xid)
532 if err != nil {
533 log.Printf("error getting read: %s", err)
534 return nil
535 }
536 return xonkxonkfn(obj, originate(xid))
537 }
538 return nil
539 case "Add":
540 xid, ok = item.GetString("object")
541 if ok {
542 // check target...
543 if !needxonkid(user, xid) {
544 log.Printf("don't need added obj: %s", xid)
545 return nil
546 }
547 obj, err = GetJunkHardMode(xid)
548 if err != nil {
549 log.Printf("error getting add: %s", err)
550 return nil
551 }
552 return xonkxonkfn(obj, originate(xid))
553 }
554 return nil
555 case "Audio":
556 fallthrough
557 case "Video":
558 fallthrough
559 case "Question":
560 fallthrough
561 case "Note":
562 fallthrough
563 case "Article":
564 fallthrough
565 case "Page":
566 obj = item
567 what = "honk"
568 case "Event":
569 obj = item
570 what = "event"
571 default:
572 log.Printf("unknown activity: %s", what)
573 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
574 item.Write(fd)
575 io.WriteString(fd, "\n")
576 fd.Close()
577 return nil
578 }
579
580 if obj != nil {
581 _, ok := obj.GetString("diaspora:guid")
582 if ok {
583 // friendica does the silliest bonks
584 c, ok := obj.GetString("source", "content")
585 if ok {
586 re_link := regexp.MustCompile(`link='([^']*)'`)
587 m := re_link.FindStringSubmatch(c)
588 if len(m) > 1 {
589 xid := m[1]
590 log.Printf("getting friendica flavored bonk: %s", xid)
591 if !needxonkid(user, xid) {
592 return nil
593 }
594 newobj, err := GetJunkHardMode(xid)
595 if err != nil {
596 log.Printf("error getting bonk: %s: %s", xid, err)
597 } else {
598 obj = newobj
599 origin = originate(xid)
600 what = "bonk"
601 }
602 }
603 }
604 }
605 }
606
607 var xonk Honk
608 // early init
609 xonk.UserID = user.ID
610 xonk.Honker, _ = item.GetString("actor")
611 if xonk.Honker == "" {
612 xonk.Honker, _ = item.GetString("attributedTo")
613 }
614 if obj != nil {
615 if xonk.Honker == "" {
616 xonk.Honker = extractattrto(obj)
617 }
618 xonk.Oonker = extractattrto(obj)
619 if xonk.Oonker == xonk.Honker {
620 xonk.Oonker = ""
621 }
622 xonk.Audience = newphone(nil, obj)
623 }
624 xonk.Audience = append(xonk.Audience, xonk.Honker)
625 xonk.Audience = oneofakind(xonk.Audience)
626
627 var mentions []string
628 if obj != nil {
629 ot, _ := obj.GetString("type")
630 url, _ = obj.GetString("url")
631 dt2, ok := obj.GetString("published")
632 if ok {
633 dt = dt2
634 }
635 xid, _ = obj.GetString("id")
636 precis, _ = obj.GetString("summary")
637 if precis == "" {
638 precis, _ = obj.GetString("name")
639 }
640 content, _ = obj.GetString("content")
641 if !strings.HasPrefix(content, "<p>") {
642 content = "<p>" + content
643 }
644 sens, _ := obj["sensitive"].(bool)
645 if sens && precis == "" {
646 precis = "unspecified horror"
647 }
648 rid, ok = obj.GetString("inReplyTo")
649 if !ok {
650 robj, ok := obj.GetMap("inReplyTo")
651 if 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 what == "honk" && rid != "" {
685 what = "tonk"
686 }
687 atts, _ := obj.GetArray("attachment")
688 for i, atti := range atts {
689 att, ok := atti.(junk.Junk)
690 if !ok {
691 continue
692 }
693 at, _ := att.GetString("type")
694 mt, _ := att.GetString("mediaType")
695 u, _ := att.GetString("url")
696 name, _ := att.GetString("name")
697 desc, _ := att.GetString("summary")
698 if desc == "" {
699 desc = name
700 }
701 localize := false
702 if i > 4 {
703 log.Printf("excessive attachment: %s", at)
704 } else if at == "Document" || at == "Image" {
705 mt = strings.ToLower(mt)
706 log.Printf("attachment: %s %s", mt, u)
707 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
708 localize = true
709 }
710 } else {
711 log.Printf("unknown attachment: %s", at)
712 }
713 if skipMedia(&xonk) {
714 localize = false
715 }
716 donk := savedonk(u, name, desc, mt, localize)
717 if donk != nil {
718 xonk.Donks = append(xonk.Donks, donk)
719 }
720 }
721 tags, _ := obj.GetArray("tag")
722 for _, tagi := range tags {
723 tag, ok := tagi.(junk.Junk)
724 if !ok {
725 continue
726 }
727 tt, _ := tag.GetString("type")
728 name, _ := tag.GetString("name")
729 desc, _ := tag.GetString("summary")
730 if desc == "" {
731 desc = name
732 }
733 if tt == "Emoji" {
734 icon, _ := tag.GetMap("icon")
735 mt, _ := icon.GetString("mediaType")
736 if mt == "" {
737 mt = "image/png"
738 }
739 u, _ := icon.GetString("url")
740 donk := savedonk(u, name, desc, mt, true)
741 if donk != nil {
742 xonk.Donks = append(xonk.Donks, donk)
743 }
744 }
745 if tt == "Hashtag" {
746 if name == "" || name == "#" {
747 // skip it
748 } else {
749 if name[0] != '#' {
750 name = "#" + name
751 }
752 xonk.Onts = append(xonk.Onts, name)
753 }
754 }
755 if tt == "Place" {
756 p := new(Place)
757 p.Name = name
758 p.Latitude, _ = tag["latitude"].(float64)
759 p.Longitude, _ = tag["longitude"].(float64)
760 p.Url, _ = tag.GetString("url")
761 xonk.Place = p
762 }
763 if tt == "Mention" {
764 m, _ := tag.GetString("href")
765 mentions = append(mentions, m)
766 }
767 }
768 starttime, ok := obj.GetString("startTime")
769 if ok {
770 start, err := time.Parse(time.RFC3339, starttime)
771 if err == nil {
772 t := new(Time)
773 t.StartTime = start
774 endtime, _ := obj.GetString("endTime")
775 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
776 dura, _ := obj.GetString("duration")
777 if strings.HasPrefix(dura, "PT") {
778 dura = strings.ToLower(dura[2:])
779 d, _ := time.ParseDuration(dura)
780 t.Duration = Duration(d)
781 }
782 xonk.Time = t
783 }
784 }
785 loca, ok := obj.GetMap("location")
786 if ok {
787 tt, _ := loca.GetString("type")
788 name, _ := loca.GetString("name")
789 if tt == "Place" {
790 p := new(Place)
791 p.Name = name
792 p.Latitude, _ = loca["latitude"].(float64)
793 p.Longitude, _ = loca["longitude"].(float64)
794 p.Url, _ = loca.GetString("url")
795 xonk.Place = p
796 }
797 }
798
799 xonk.Onts = oneofakind(xonk.Onts)
800 replyobj, ok := obj.GetMap("replies")
801 if ok {
802 items, ok := replyobj.GetArray("items")
803 if !ok {
804 first, ok := replyobj.GetMap("first")
805 if ok {
806 items, _ = first.GetArray("items")
807 }
808 }
809 for _, repl := range items {
810 s, ok := repl.(string)
811 if ok {
812 replies = append(replies, s)
813 }
814 }
815 }
816
817 }
818 if originate(xid) != origin {
819 log.Printf("original sin: %s <> %s", xid, origin)
820 item.Write(os.Stdout)
821 return nil
822 }
823
824 if currenttid == "" {
825 currenttid = convoy
826 }
827
828 if len(content) > 90001 {
829 log.Printf("content too long. truncating")
830 content = content[:90001]
831 }
832
833 // init xonk
834 xonk.What = what
835 xonk.XID = xid
836 xonk.RID = rid
837 xonk.Date, _ = time.Parse(time.RFC3339, dt)
838 xonk.URL = url
839 xonk.Noise = content
840 xonk.Precis = precis
841 xonk.Format = "html"
842 xonk.Convoy = convoy
843 for _, m := range mentions {
844 if m == user.URL {
845 xonk.Whofore = 1
846 }
847 }
848 imaginate(&xonk)
849
850 if isUpdate {
851 log.Printf("something has changed! %s", xonk.XID)
852 prev := getxonk(user.ID, xonk.XID)
853 if prev == nil {
854 log.Printf("didn't find old version for update: %s", xonk.XID)
855 isUpdate = false
856 } else {
857 prev.Noise = xonk.Noise
858 prev.Precis = xonk.Precis
859 prev.Date = xonk.Date
860 prev.Donks = xonk.Donks
861 prev.Onts = xonk.Onts
862 prev.Place = xonk.Place
863 updatehonk(prev)
864 }
865 }
866 if !isUpdate && needxonk(user, &xonk) {
867 if strings.HasSuffix(convoy, "#context") {
868 // friendica...
869 if rid != "" {
870 convoy = ""
871 } else {
872 convoy = url
873 }
874 }
875 if rid != "" {
876 if needxonkid(user, rid) {
877 goingup++
878 saveonemore(rid)
879 goingup--
880 }
881 if convoy == "" {
882 xx := getxonk(user.ID, rid)
883 if xx != nil {
884 convoy = xx.Convoy
885 }
886 }
887 }
888 if convoy == "" {
889 convoy = currenttid
890 }
891 if convoy == "" {
892 convoy = "missing-" + xfiltrate()
893 currenttid = convoy
894 }
895 xonk.Convoy = convoy
896 savexonk(&xonk)
897 }
898 if goingup == 0 {
899 for _, replid := range replies {
900 if needxonkid(user, replid) {
901 log.Printf("missing a reply: %s", replid)
902 saveonemore(replid)
903 }
904 }
905 }
906 return &xonk
907 }
908
909 return xonkxonkfn(item, origin)
910}
911
912func rubadubdub(user *WhatAbout, req junk.Junk) {
913 xid, _ := req.GetString("id")
914 actor, _ := req.GetString("actor")
915 j := junk.New()
916 j["@context"] = itiswhatitis
917 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
918 j["type"] = "Accept"
919 j["actor"] = user.URL
920 j["to"] = actor
921 j["published"] = time.Now().UTC().Format(time.RFC3339)
922 j["object"] = req
923
924 deliverate(0, user.ID, actor, j.ToBytes())
925}
926
927func itakeitallback(user *WhatAbout, xid string) {
928 j := junk.New()
929 j["@context"] = itiswhatitis
930 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
931 j["type"] = "Undo"
932 j["actor"] = user.URL
933 j["to"] = xid
934 f := junk.New()
935 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
936 f["type"] = "Follow"
937 f["actor"] = user.URL
938 f["to"] = xid
939 f["object"] = xid
940 j["object"] = f
941 j["published"] = time.Now().UTC().Format(time.RFC3339)
942
943 deliverate(0, user.ID, xid, j.ToBytes())
944}
945
946func subsub(user *WhatAbout, xid string, owner string) {
947 if xid == "" {
948 log.Printf("can't subscribe to empty")
949 return
950 }
951 j := junk.New()
952 j["@context"] = itiswhatitis
953 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
954 j["type"] = "Follow"
955 j["actor"] = user.URL
956 j["to"] = owner
957 j["object"] = xid
958 j["published"] = time.Now().UTC().Format(time.RFC3339)
959
960 deliverate(0, user.ID, owner, j.ToBytes())
961}
962
963// returns activity, object
964func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
965 dt := h.Date.Format(time.RFC3339)
966 var jo junk.Junk
967 j := junk.New()
968 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
969 j["actor"] = user.URL
970 j["published"] = dt
971 if h.Public {
972 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
973 } else {
974 j["to"] = h.Audience[0]
975 }
976 if len(h.Audience) > 1 {
977 j["cc"] = h.Audience[1:]
978 }
979
980 switch h.What {
981 case "update":
982 fallthrough
983 case "tonk":
984 fallthrough
985 case "event":
986 fallthrough
987 case "honk":
988 j["type"] = "Create"
989 if h.What == "update" {
990 j["type"] = "Update"
991 }
992
993 jo = junk.New()
994 jo["id"] = h.XID
995 jo["type"] = "Note"
996 if h.What == "event" {
997 jo["type"] = "Event"
998 }
999 jo["published"] = dt
1000 jo["url"] = h.XID
1001 jo["attributedTo"] = user.URL
1002 if h.RID != "" {
1003 jo["inReplyTo"] = h.RID
1004 }
1005 if h.Convoy != "" {
1006 jo["context"] = h.Convoy
1007 jo["conversation"] = h.Convoy
1008 }
1009 jo["to"] = h.Audience[0]
1010 if len(h.Audience) > 1 {
1011 jo["cc"] = h.Audience[1:]
1012 }
1013 if !h.Public {
1014 jo["directMessage"] = true
1015 }
1016 mentions := bunchofgrapes(h.Noise)
1017 translate(h, true)
1018 jo["summary"] = html.EscapeString(h.Precis)
1019 jo["content"] = h.Noise
1020 if strings.HasPrefix(h.Precis, "DZ:") {
1021 jo["sensitive"] = true
1022 }
1023
1024 var replies []string
1025 for _, reply := range h.Replies {
1026 replies = append(replies, reply.XID)
1027 }
1028 if len(replies) > 0 {
1029 jr := junk.New()
1030 jr["type"] = "Collection"
1031 jr["totalItems"] = len(replies)
1032 jr["items"] = replies
1033 jo["replies"] = jr
1034 }
1035
1036 var tags []junk.Junk
1037 for _, m := range mentions {
1038 t := junk.New()
1039 t["type"] = "Mention"
1040 t["name"] = m.who
1041 t["href"] = m.where
1042 tags = append(tags, t)
1043 }
1044 for _, o := range h.Onts {
1045 t := junk.New()
1046 t["type"] = "Hashtag"
1047 o = strings.ToLower(o)
1048 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1049 t["name"] = o
1050 tags = append(tags, t)
1051 }
1052 for _, e := range herdofemus(h.Noise) {
1053 t := junk.New()
1054 t["id"] = e.ID
1055 t["type"] = "Emoji"
1056 t["name"] = e.Name
1057 i := junk.New()
1058 i["type"] = "Image"
1059 i["mediaType"] = "image/png"
1060 i["url"] = e.ID
1061 t["icon"] = i
1062 tags = append(tags, t)
1063 }
1064 if p := h.Place; p != nil {
1065 t := junk.New()
1066 t["type"] = "Place"
1067 t["name"] = p.Name
1068 t["latitude"] = p.Latitude
1069 t["longitude"] = p.Longitude
1070 t["url"] = p.Url
1071 if h.What == "event" {
1072 jo["location"] = t
1073 } else {
1074 tags = append(tags, t)
1075 }
1076 }
1077 if len(tags) > 0 {
1078 jo["tag"] = tags
1079 }
1080 if t := h.Time; t != nil {
1081 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1082 if t.Duration != 0 {
1083 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1084 }
1085 }
1086 var atts []junk.Junk
1087 for _, d := range h.Donks {
1088 if re_emus.MatchString(d.Name) {
1089 continue
1090 }
1091 jd := junk.New()
1092 jd["mediaType"] = d.Media
1093 jd["name"] = d.Name
1094 jd["summary"] = html.EscapeString(d.Desc)
1095 jd["type"] = "Document"
1096 jd["url"] = d.URL
1097 atts = append(atts, jd)
1098 }
1099 if len(atts) > 0 {
1100 jo["attachment"] = atts
1101 }
1102 j["object"] = jo
1103 case "bonk":
1104 j["type"] = "Announce"
1105 if h.Convoy != "" {
1106 j["context"] = h.Convoy
1107 }
1108 j["object"] = h.XID
1109 case "unbonk":
1110 b := junk.New()
1111 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1112 b["type"] = "Announce"
1113 b["actor"] = user.URL
1114 if h.Convoy != "" {
1115 b["context"] = h.Convoy
1116 }
1117 b["object"] = h.XID
1118 j["type"] = "Undo"
1119 j["object"] = b
1120 case "zonk":
1121 j["type"] = "Delete"
1122 j["object"] = h.XID
1123 case "ack":
1124 j["type"] = "Read"
1125 j["object"] = h.XID
1126 if h.Convoy != "" {
1127 j["context"] = h.Convoy
1128 }
1129 case "deack":
1130 b := junk.New()
1131 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1132 b["type"] = "Read"
1133 b["actor"] = user.URL
1134 b["object"] = h.XID
1135 if h.Convoy != "" {
1136 b["context"] = h.Convoy
1137 }
1138 j["type"] = "Undo"
1139 j["object"] = b
1140 }
1141
1142 return j, jo
1143}
1144
1145var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1146 row := stmtAnyXonk.QueryRow(xid)
1147 honk := scanhonk(row)
1148 if honk == nil || !honk.Public {
1149 return nil, true
1150 }
1151 user, _ := butwhatabout(honk.Username)
1152 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1153 reversehonks(rawhonks)
1154 for _, h := range rawhonks {
1155 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1156 honk.Replies = append(honk.Replies, h)
1157 }
1158 }
1159 donksforhonks([]*Honk{honk})
1160 _, j := jonkjonk(user, honk)
1161 j["@context"] = itiswhatitis
1162
1163 return j.ToBytes(), true
1164}})
1165
1166func gimmejonk(xid string) ([]byte, bool) {
1167 var j []byte
1168 ok := oldjonks.Get(xid, &j)
1169 return j, ok
1170}
1171
1172func honkworldwide(user *WhatAbout, honk *Honk) {
1173 jonk, _ := jonkjonk(user, honk)
1174 jonk["@context"] = itiswhatitis
1175 msg := jonk.ToBytes()
1176
1177 rcpts := make(map[string]bool)
1178 for _, a := range honk.Audience {
1179 if a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1180 continue
1181 }
1182 var box *Box
1183 ok := boxofboxes.Get(a, &box)
1184 if ok && honk.Public && box.Shared != "" {
1185 rcpts["%"+box.Shared] = true
1186 } else {
1187 rcpts[a] = true
1188 }
1189 }
1190 if honk.Public {
1191 for _, h := range getdubs(user.ID) {
1192 if h.XID == user.URL {
1193 continue
1194 }
1195 var box *Box
1196 ok := boxofboxes.Get(h.XID, &box)
1197 if ok && box.Shared != "" {
1198 rcpts["%"+box.Shared] = true
1199 } else {
1200 rcpts[h.XID] = true
1201 }
1202 }
1203 }
1204 for a := range rcpts {
1205 go deliverate(0, user.ID, a, msg)
1206 }
1207 if honk.Public && len(honk.Onts) > 0 {
1208 collectiveaction(honk)
1209 }
1210}
1211
1212func collectiveaction(honk *Honk) {
1213 user := getserveruser()
1214 for _, ont := range honk.Onts {
1215 dubs := getnameddubs(serverUID, ont)
1216 if len(dubs) == 0 {
1217 continue
1218 }
1219 j := junk.New()
1220 j["@context"] = itiswhatitis
1221 j["type"] = "Add"
1222 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1223 j["actor"] = user.URL
1224 j["object"] = honk.XID
1225 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1226 rcpts := make(map[string]bool)
1227 for _, dub := range dubs {
1228 var box *Box
1229 ok := boxofboxes.Get(dub.XID, &box)
1230 if ok && box.Shared != "" {
1231 rcpts["%"+box.Shared] = true
1232 } else {
1233 rcpts[dub.XID] = true
1234 }
1235 }
1236 msg := j.ToBytes()
1237 for a := range rcpts {
1238 go deliverate(0, user.ID, a, msg)
1239 }
1240 }
1241}
1242
1243func junkuser(user *WhatAbout) []byte {
1244 about := markitzero(user.About)
1245
1246 j := junk.New()
1247 j["@context"] = itiswhatitis
1248 j["id"] = user.URL
1249 j["inbox"] = user.URL + "/inbox"
1250 j["outbox"] = user.URL + "/outbox"
1251 j["name"] = user.Display
1252 j["preferredUsername"] = user.Name
1253 j["summary"] = about
1254 if user.ID > 0 {
1255 j["type"] = "Person"
1256 j["url"] = user.URL
1257 j["followers"] = user.URL + "/followers"
1258 j["following"] = user.URL + "/following"
1259 a := junk.New()
1260 a["type"] = "Image"
1261 a["mediaType"] = "image/png"
1262 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1263 j["icon"] = a
1264 } else {
1265 j["type"] = "Service"
1266 }
1267 k := junk.New()
1268 k["id"] = user.URL + "#key"
1269 k["owner"] = user.URL
1270 k["publicKeyPem"] = user.Key
1271 j["publicKey"] = k
1272
1273 return j.ToBytes()
1274}
1275
1276var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1277 user, err := butwhatabout(name)
1278 if err != nil {
1279 return nil, false
1280 }
1281 return junkuser(user), true
1282}, Duration: 1 * time.Minute})
1283
1284func asjonker(name string) ([]byte, bool) {
1285 var j []byte
1286 ok := oldjonkers.Get(name, &j)
1287 return j, ok
1288}
1289
1290var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1291 m := strings.Split(name, "@")
1292 if len(m) != 2 {
1293 log.Printf("bad fish name: %s", name)
1294 return "", true
1295 }
1296 row := stmtGetXonker.QueryRow(name, "fishname")
1297 var href string
1298 err := row.Scan(&href)
1299 if err == nil {
1300 return href, true
1301 }
1302 log.Printf("fishing for %s", name)
1303 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1304 if err != nil {
1305 log.Printf("failed to go fish %s: %s", name, err)
1306 return "", true
1307 }
1308 links, _ := j.GetArray("links")
1309 for _, li := range links {
1310 l, ok := li.(junk.Junk)
1311 if !ok {
1312 continue
1313 }
1314 href, _ := l.GetString("href")
1315 rel, _ := l.GetString("rel")
1316 t, _ := l.GetString("type")
1317 if rel == "self" && friendorfoe(t) {
1318 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1319 if err != nil {
1320 log.Printf("error saving fishname: %s", err)
1321 }
1322 return href, true
1323 }
1324 }
1325 return href, true
1326}})
1327
1328func gofish(name string) string {
1329 if name[0] == '@' {
1330 name = name[1:]
1331 }
1332 var href string
1333 handfull.Get(name, &href)
1334 return href
1335}
1336
1337func investigate(name string) (*SomeThing, error) {
1338 if name == "" {
1339 return nil, fmt.Errorf("no name")
1340 }
1341 if name[0] == '@' {
1342 name = gofish(name)
1343 }
1344 if name == "" {
1345 return nil, fmt.Errorf("no name")
1346 }
1347 obj, err := GetJunkFast(name)
1348 if err != nil {
1349 return nil, err
1350 }
1351 return somethingabout(obj)
1352}
1353
1354func somethingabout(obj junk.Junk) (*SomeThing, error) {
1355 info := new(SomeThing)
1356 t, _ := obj.GetString("type")
1357 switch t {
1358 case "Person":
1359 fallthrough
1360 case "Organization":
1361 fallthrough
1362 case "Application":
1363 fallthrough
1364 case "Service":
1365 info.What = SomeActor
1366 case "OrderedCollection":
1367 fallthrough
1368 case "Collection":
1369 info.What = SomeCollection
1370 default:
1371 return nil, fmt.Errorf("unknown object type")
1372 }
1373 info.XID, _ = obj.GetString("id")
1374 info.Name, _ = obj.GetString("preferredUsername")
1375 if info.Name == "" {
1376 info.Name, _ = obj.GetString("name")
1377 }
1378 info.Owner, _ = obj.GetString("attributedTo")
1379 if info.Owner == "" {
1380 info.Owner = info.XID
1381 }
1382 return info, nil
1383}