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