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 log.Printf("need to get boxes for %s", ident)
280 j, err := GetJunk(ident)
281 if err != nil {
282 log.Printf("error getting boxes: %s", err)
283 return nil, false
284 }
285 allinjest(originate(ident), j)
286 row = stmtGetXonker.QueryRow(ident, "boxes")
287 err = row.Scan(&info)
288 }
289 if err == nil {
290 m := strings.Split(info, " ")
291 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
292 return b, true
293 }
294 return nil, false
295}})
296
297func gimmexonks(user *WhatAbout, outbox string) {
298 log.Printf("getting outbox: %s", outbox)
299 j, err := GetJunk(outbox)
300 if err != nil {
301 log.Printf("error getting outbox: %s", err)
302 return
303 }
304 t, _ := j.GetString("type")
305 origin := originate(outbox)
306 if t == "OrderedCollection" {
307 items, _ := j.GetArray("orderedItems")
308 if items == nil {
309 items, _ = j.GetArray("items")
310 }
311 if items == nil {
312 obj, ok := j.GetMap("first")
313 if ok {
314 items, _ = obj.GetArray("orderedItems")
315 } else {
316 page1, ok := j.GetString("first")
317 if ok {
318 j, err = GetJunk(page1)
319 if err != nil {
320 log.Printf("error gettings page1: %s", err)
321 return
322 }
323 items, _ = j.GetArray("orderedItems")
324 }
325 }
326 }
327 if len(items) > 20 {
328 items = items[0:20]
329 }
330 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
331 items[i], items[j] = items[j], items[i]
332 }
333 for _, item := range items {
334 obj, ok := item.(junk.Junk)
335 if ok {
336 xonksaver(user, obj, origin)
337 continue
338 }
339 xid, ok := item.(string)
340 if ok {
341 if !needxonkid(user, xid) {
342 continue
343 }
344 obj, err = GetJunk(xid)
345 if err != nil {
346 log.Printf("error getting item: %s", err)
347 continue
348 }
349 xonksaver(user, obj, originate(xid))
350 }
351 }
352 }
353}
354
355func whosthere(xid string) ([]string, string) {
356 obj, err := GetJunk(xid)
357 if err != nil {
358 log.Printf("error getting remote xonk: %s", err)
359 return nil, ""
360 }
361 convoy, _ := obj.GetString("context")
362 if convoy == "" {
363 convoy, _ = obj.GetString("conversation")
364 }
365 return newphone(nil, obj), convoy
366}
367
368func newphone(a []string, obj junk.Junk) []string {
369 for _, addr := range []string{"to", "cc", "attributedTo"} {
370 who, _ := obj.GetString(addr)
371 if who != "" {
372 a = append(a, who)
373 }
374 whos, _ := obj.GetArray(addr)
375 for _, w := range whos {
376 who, _ := w.(string)
377 if who != "" {
378 a = append(a, who)
379 }
380 }
381 }
382 return a
383}
384
385func extractattrto(obj junk.Junk) string {
386 who, _ := obj.GetString("attributedTo")
387 if who != "" {
388 return who
389 }
390 o, ok := obj.GetMap("attributedTo")
391 if ok {
392 id, ok := o.GetString("id")
393 if ok {
394 return id
395 }
396 }
397 arr, _ := obj.GetArray("attributedTo")
398 for _, a := range arr {
399 o, ok := a.(junk.Junk)
400 if ok {
401 t, _ := o.GetString("type")
402 id, _ := o.GetString("id")
403 if t == "Person" || t == "" {
404 return id
405 }
406 }
407 s, ok := a.(string)
408 if ok {
409 return s
410 }
411 }
412 return ""
413}
414
415func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
416 depth := 0
417 maxdepth := 10
418 currenttid := ""
419 goingup := 0
420 var xonkxonkfn func(item junk.Junk, origin string) *Honk
421
422 saveonemore := func(xid string) {
423 log.Printf("getting onemore: %s", xid)
424 if depth >= maxdepth {
425 log.Printf("in too deep")
426 return
427 }
428 obj, err := GetJunkHardMode(xid)
429 if err != nil {
430 log.Printf("error getting onemore: %s: %s", xid, err)
431 return
432 }
433 depth++
434 xonkxonkfn(obj, originate(xid))
435 depth--
436 }
437
438 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
439 // id, _ := item.GetString( "id")
440 what, _ := item.GetString("type")
441 dt, _ := item.GetString("published")
442
443 var err error
444 var xid, rid, url, content, precis, convoy string
445 var replies []string
446 var obj junk.Junk
447 var ok bool
448 isUpdate := false
449 switch what {
450 case "Delete":
451 obj, ok = item.GetMap("object")
452 if ok {
453 xid, _ = obj.GetString("id")
454 } else {
455 xid, _ = item.GetString("object")
456 }
457 if xid == "" {
458 return nil
459 }
460 if originate(xid) != origin {
461 log.Printf("forged delete: %s", xid)
462 return nil
463 }
464 log.Printf("eradicating %s", xid)
465 eradicatexonk(user.ID, xid)
466 return nil
467 case "Tombstone":
468 xid, _ = item.GetString("id")
469 if xid == "" {
470 return nil
471 }
472 if originate(xid) != origin {
473 log.Printf("forged delete: %s", xid)
474 return nil
475 }
476 log.Printf("eradicating %s", xid)
477 eradicatexonk(user.ID, xid)
478 return nil
479 case "Announce":
480 obj, ok = item.GetMap("object")
481 if ok {
482 xid, _ = obj.GetString("id")
483 } else {
484 xid, _ = item.GetString("object")
485 }
486 if !needxonkid(user, xid) {
487 return nil
488 }
489 log.Printf("getting bonk: %s", xid)
490 obj, err = GetJunkHardMode(xid)
491 if err != nil {
492 log.Printf("error getting bonk: %s: %s", xid, err)
493 }
494 origin = originate(xid)
495 what = "bonk"
496 case "Update":
497 isUpdate = true
498 fallthrough
499 case "Create":
500 obj, ok = item.GetMap("object")
501 if !ok {
502 xid, _ = item.GetString("object")
503 log.Printf("getting created honk: %s", xid)
504 obj, err = GetJunkHardMode(xid)
505 if err != nil {
506 log.Printf("error getting creation: %s", err)
507 }
508 }
509 what = "honk"
510 if obj != nil {
511 t, _ := obj.GetString("type")
512 switch t {
513 case "Event":
514 what = "event"
515 }
516 }
517 case "Read":
518 xid, ok = item.GetString("object")
519 if ok {
520 if !needxonkid(user, xid) {
521 log.Printf("don't need read obj: %s", xid)
522 return nil
523 }
524 obj, err = GetJunkHardMode(xid)
525 if err != nil {
526 log.Printf("error getting read: %s", err)
527 return nil
528 }
529 return xonkxonkfn(obj, originate(xid))
530 }
531 return nil
532 case "Add":
533 xid, ok = item.GetString("object")
534 if ok {
535 // check target...
536 if !needxonkid(user, xid) {
537 log.Printf("don't need added obj: %s", xid)
538 return nil
539 }
540 obj, err = GetJunkHardMode(xid)
541 if err != nil {
542 log.Printf("error getting add: %s", err)
543 return nil
544 }
545 return xonkxonkfn(obj, originate(xid))
546 }
547 return nil
548 case "Audio":
549 fallthrough
550 case "Video":
551 fallthrough
552 case "Question":
553 fallthrough
554 case "Note":
555 fallthrough
556 case "Article":
557 fallthrough
558 case "Page":
559 obj = item
560 what = "honk"
561 case "Event":
562 obj = item
563 what = "event"
564 default:
565 log.Printf("unknown activity: %s", what)
566 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
567 item.Write(fd)
568 io.WriteString(fd, "\n")
569 fd.Close()
570 return nil
571 }
572
573 if obj != nil {
574 _, ok := obj.GetString("diaspora:guid")
575 if ok {
576 // friendica does the silliest bonks
577 c, ok := obj.GetString("source", "content")
578 if ok {
579 re_link := regexp.MustCompile(`link='([^']*)'`)
580 m := re_link.FindStringSubmatch(c)
581 if len(m) > 1 {
582 xid := m[1]
583 log.Printf("getting friendica flavored bonk: %s", xid)
584 if !needxonkid(user, xid) {
585 return nil
586 }
587 newobj, err := GetJunkHardMode(xid)
588 if err != nil {
589 log.Printf("error getting bonk: %s: %s", xid, err)
590 } else {
591 obj = newobj
592 origin = originate(xid)
593 what = "bonk"
594 }
595 }
596 }
597 }
598 }
599
600 var xonk Honk
601 // early init
602 xonk.UserID = user.ID
603 xonk.Honker, _ = item.GetString("actor")
604 if xonk.Honker == "" {
605 xonk.Honker, _ = item.GetString("attributedTo")
606 }
607 if obj != nil {
608 if xonk.Honker == "" {
609 xonk.Honker = extractattrto(obj)
610 }
611 xonk.Oonker = extractattrto(obj)
612 if xonk.Oonker == xonk.Honker {
613 xonk.Oonker = ""
614 }
615 xonk.Audience = newphone(nil, obj)
616 }
617 xonk.Audience = append(xonk.Audience, xonk.Honker)
618 xonk.Audience = oneofakind(xonk.Audience)
619
620 var mentions []string
621 if obj != nil {
622 ot, _ := obj.GetString("type")
623 url, _ = obj.GetString("url")
624 dt2, ok := obj.GetString("published")
625 if ok {
626 dt = dt2
627 }
628 xid, _ = obj.GetString("id")
629 precis, _ = obj.GetString("summary")
630 if precis == "" {
631 precis, _ = obj.GetString("name")
632 }
633 content, _ = obj.GetString("content")
634 if !strings.HasPrefix(content, "<p>") {
635 content = "<p>" + content
636 }
637 sens, _ := obj["sensitive"].(bool)
638 if sens && precis == "" {
639 precis = "unspecified horror"
640 }
641 rid, ok = obj.GetString("inReplyTo")
642 if !ok {
643 robj, ok := obj.GetMap("inReplyTo")
644 if ok {
645 rid, _ = robj.GetString("id")
646 }
647 }
648 convoy, _ = obj.GetString("context")
649 if convoy == "" {
650 convoy, _ = obj.GetString("conversation")
651 }
652 if ot == "Question" {
653 if what == "honk" {
654 what = "qonk"
655 }
656 content += "<ul>"
657 ans, _ := obj.GetArray("oneOf")
658 for _, ai := range ans {
659 a, ok := ai.(junk.Junk)
660 if !ok {
661 continue
662 }
663 as, _ := a.GetString("name")
664 content += "<li>" + as
665 }
666 ans, _ = obj.GetArray("anyOf")
667 for _, ai := range ans {
668 a, ok := ai.(junk.Junk)
669 if !ok {
670 continue
671 }
672 as, _ := a.GetString("name")
673 content += "<li>" + as
674 }
675 content += "</ul>"
676 }
677 if what == "honk" && rid != "" {
678 what = "tonk"
679 }
680 atts, _ := obj.GetArray("attachment")
681 for i, atti := range atts {
682 att, ok := atti.(junk.Junk)
683 if !ok {
684 continue
685 }
686 at, _ := att.GetString("type")
687 mt, _ := att.GetString("mediaType")
688 u, _ := att.GetString("url")
689 name, _ := att.GetString("name")
690 desc, _ := att.GetString("summary")
691 if desc == "" {
692 desc = name
693 }
694 localize := false
695 if i > 4 {
696 log.Printf("excessive attachment: %s", at)
697 } else if at == "Document" || at == "Image" {
698 mt = strings.ToLower(mt)
699 log.Printf("attachment: %s %s", mt, u)
700 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
701 localize = true
702 }
703 } else {
704 log.Printf("unknown attachment: %s", at)
705 }
706 if skipMedia(&xonk) {
707 localize = false
708 }
709 donk := savedonk(u, name, desc, mt, localize)
710 if donk != nil {
711 xonk.Donks = append(xonk.Donks, donk)
712 }
713 }
714 tags, _ := obj.GetArray("tag")
715 for _, tagi := range tags {
716 tag, ok := tagi.(junk.Junk)
717 if !ok {
718 continue
719 }
720 tt, _ := tag.GetString("type")
721 name, _ := tag.GetString("name")
722 desc, _ := tag.GetString("summary")
723 if desc == "" {
724 desc = name
725 }
726 if tt == "Emoji" {
727 icon, _ := tag.GetMap("icon")
728 mt, _ := icon.GetString("mediaType")
729 if mt == "" {
730 mt = "image/png"
731 }
732 u, _ := icon.GetString("url")
733 donk := savedonk(u, name, desc, mt, true)
734 if donk != nil {
735 xonk.Donks = append(xonk.Donks, donk)
736 }
737 }
738 if tt == "Hashtag" {
739 if name == "" || name == "#" {
740 // skip it
741 } else {
742 if name[0] != '#' {
743 name = "#" + name
744 }
745 xonk.Onts = append(xonk.Onts, name)
746 }
747 }
748 if tt == "Place" {
749 p := new(Place)
750 p.Name = name
751 p.Latitude, _ = tag["latitude"].(float64)
752 p.Longitude, _ = tag["longitude"].(float64)
753 p.Url, _ = tag.GetString("url")
754 xonk.Place = p
755 }
756 if tt == "Mention" {
757 m, _ := tag.GetString("href")
758 mentions = append(mentions, m)
759 }
760 }
761 starttime, ok := obj.GetString("startTime")
762 if ok {
763 start, err := time.Parse(time.RFC3339, starttime)
764 if err == nil {
765 t := new(Time)
766 t.StartTime = start
767 endtime, _ := obj.GetString("endTime")
768 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
769 dura, _ := obj.GetString("duration")
770 if strings.HasPrefix(dura, "PT") {
771 dura = strings.ToLower(dura[2:])
772 d, _ := time.ParseDuration(dura)
773 t.Duration = Duration(d)
774 }
775 xonk.Time = t
776 }
777 }
778 loca, ok := obj.GetMap("location")
779 if ok {
780 tt, _ := loca.GetString("type")
781 name, _ := loca.GetString("name")
782 if tt == "Place" {
783 p := new(Place)
784 p.Name = name
785 p.Latitude, _ = loca["latitude"].(float64)
786 p.Longitude, _ = loca["longitude"].(float64)
787 p.Url, _ = loca.GetString("url")
788 xonk.Place = p
789 }
790 }
791
792 xonk.Onts = oneofakind(xonk.Onts)
793 replyobj, ok := obj.GetMap("replies")
794 if ok {
795 items, ok := replyobj.GetArray("items")
796 if !ok {
797 first, ok := replyobj.GetMap("first")
798 if ok {
799 items, _ = first.GetArray("items")
800 }
801 }
802 for _, repl := range items {
803 s, ok := repl.(string)
804 if ok {
805 replies = append(replies, s)
806 }
807 }
808 }
809
810 }
811 if originate(xid) != origin {
812 log.Printf("original sin: %s <> %s", xid, origin)
813 item.Write(os.Stdout)
814 return nil
815 }
816
817 if currenttid == "" {
818 currenttid = convoy
819 }
820
821 if len(content) > 90001 {
822 log.Printf("content too long. truncating")
823 content = content[:90001]
824 }
825
826 // init xonk
827 xonk.What = what
828 xonk.XID = xid
829 xonk.RID = rid
830 xonk.Date, _ = time.Parse(time.RFC3339, dt)
831 xonk.URL = url
832 xonk.Noise = content
833 xonk.Precis = precis
834 xonk.Format = "html"
835 xonk.Convoy = convoy
836 for _, m := range mentions {
837 if m == user.URL {
838 xonk.Whofore = 1
839 }
840 }
841 imaginate(&xonk)
842
843 if isUpdate {
844 log.Printf("something has changed! %s", xonk.XID)
845 prev := getxonk(user.ID, xonk.XID)
846 if prev == nil {
847 log.Printf("didn't find old version for update: %s", xonk.XID)
848 isUpdate = false
849 } else {
850 prev.Noise = xonk.Noise
851 prev.Precis = xonk.Precis
852 prev.Date = xonk.Date
853 prev.Donks = xonk.Donks
854 prev.Onts = xonk.Onts
855 prev.Place = xonk.Place
856 updatehonk(prev)
857 }
858 }
859 if !isUpdate && needxonk(user, &xonk) {
860 if strings.HasSuffix(convoy, "#context") {
861 // friendica...
862 if rid != "" {
863 convoy = ""
864 } else {
865 convoy = url
866 }
867 }
868 if rid != "" {
869 if needxonkid(user, rid) {
870 goingup++
871 saveonemore(rid)
872 goingup--
873 }
874 if convoy == "" {
875 xx := getxonk(user.ID, rid)
876 if xx != nil {
877 convoy = xx.Convoy
878 }
879 }
880 }
881 if convoy == "" {
882 convoy = currenttid
883 }
884 if convoy == "" {
885 convoy = "missing-" + xfiltrate()
886 currenttid = convoy
887 }
888 xonk.Convoy = convoy
889 savexonk(&xonk)
890 }
891 if goingup == 0 {
892 for _, replid := range replies {
893 if needxonkid(user, replid) {
894 log.Printf("missing a reply: %s", replid)
895 saveonemore(replid)
896 }
897 }
898 }
899 return &xonk
900 }
901
902 return xonkxonkfn(item, origin)
903}
904
905func rubadubdub(user *WhatAbout, req junk.Junk) {
906 xid, _ := req.GetString("id")
907 actor, _ := req.GetString("actor")
908 j := junk.New()
909 j["@context"] = itiswhatitis
910 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
911 j["type"] = "Accept"
912 j["actor"] = user.URL
913 j["to"] = actor
914 j["published"] = time.Now().UTC().Format(time.RFC3339)
915 j["object"] = req
916
917 deliverate(0, user.ID, actor, j.ToBytes())
918}
919
920func itakeitallback(user *WhatAbout, xid string) {
921 j := junk.New()
922 j["@context"] = itiswhatitis
923 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
924 j["type"] = "Undo"
925 j["actor"] = user.URL
926 j["to"] = xid
927 f := junk.New()
928 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
929 f["type"] = "Follow"
930 f["actor"] = user.URL
931 f["to"] = xid
932 f["object"] = xid
933 j["object"] = f
934 j["published"] = time.Now().UTC().Format(time.RFC3339)
935
936 deliverate(0, user.ID, xid, j.ToBytes())
937}
938
939func subsub(user *WhatAbout, xid string, owner string) {
940 if xid == "" {
941 log.Printf("can't subscribe to empty")
942 return
943 }
944 j := junk.New()
945 j["@context"] = itiswhatitis
946 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
947 j["type"] = "Follow"
948 j["actor"] = user.URL
949 j["to"] = owner
950 j["object"] = xid
951 j["published"] = time.Now().UTC().Format(time.RFC3339)
952
953 deliverate(0, user.ID, owner, j.ToBytes())
954}
955
956// returns activity, object
957func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
958 dt := h.Date.Format(time.RFC3339)
959 var jo junk.Junk
960 j := junk.New()
961 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
962 j["actor"] = user.URL
963 j["published"] = dt
964 if h.Public {
965 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
966 } else {
967 j["to"] = h.Audience[0]
968 }
969 if len(h.Audience) > 1 {
970 j["cc"] = h.Audience[1:]
971 }
972
973 switch h.What {
974 case "update":
975 fallthrough
976 case "tonk":
977 fallthrough
978 case "event":
979 fallthrough
980 case "honk":
981 j["type"] = "Create"
982 if h.What == "update" {
983 j["type"] = "Update"
984 }
985
986 jo = junk.New()
987 jo["id"] = h.XID
988 jo["type"] = "Note"
989 if h.What == "event" {
990 jo["type"] = "Event"
991 }
992 jo["published"] = dt
993 jo["url"] = h.XID
994 jo["attributedTo"] = user.URL
995 if h.RID != "" {
996 jo["inReplyTo"] = h.RID
997 }
998 if h.Convoy != "" {
999 jo["context"] = h.Convoy
1000 jo["conversation"] = h.Convoy
1001 }
1002 jo["to"] = h.Audience[0]
1003 if len(h.Audience) > 1 {
1004 jo["cc"] = h.Audience[1:]
1005 }
1006 if !h.Public {
1007 jo["directMessage"] = true
1008 }
1009 mentions := bunchofgrapes(h.Noise)
1010 translate(h, true)
1011 jo["summary"] = html.EscapeString(h.Precis)
1012 jo["content"] = h.Noise
1013 if strings.HasPrefix(h.Precis, "DZ:") {
1014 jo["sensitive"] = true
1015 }
1016
1017 var replies []string
1018 for _, reply := range h.Replies {
1019 replies = append(replies, reply.XID)
1020 }
1021 if len(replies) > 0 {
1022 jr := junk.New()
1023 jr["type"] = "Collection"
1024 jr["totalItems"] = len(replies)
1025 jr["items"] = replies
1026 jo["replies"] = jr
1027 }
1028
1029 var tags []junk.Junk
1030 for _, m := range mentions {
1031 t := junk.New()
1032 t["type"] = "Mention"
1033 t["name"] = m.who
1034 t["href"] = m.where
1035 tags = append(tags, t)
1036 }
1037 for _, o := range h.Onts {
1038 t := junk.New()
1039 t["type"] = "Hashtag"
1040 o = strings.ToLower(o)
1041 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1042 t["name"] = o
1043 tags = append(tags, t)
1044 }
1045 for _, e := range herdofemus(h.Noise) {
1046 t := junk.New()
1047 t["id"] = e.ID
1048 t["type"] = "Emoji"
1049 t["name"] = e.Name
1050 i := junk.New()
1051 i["type"] = "Image"
1052 i["mediaType"] = "image/png"
1053 i["url"] = e.ID
1054 t["icon"] = i
1055 tags = append(tags, t)
1056 }
1057 if len(tags) > 0 {
1058 jo["tag"] = tags
1059 }
1060 if p := h.Place; p != nil {
1061 t := junk.New()
1062 t["type"] = "Place"
1063 if p.Name != "" {
1064 t["name"] = p.Name
1065 }
1066 if p.Latitude != 0 {
1067 t["latitude"] = p.Latitude
1068 }
1069 if p.Longitude != 0 {
1070 t["longitude"] = p.Longitude
1071 }
1072 if p.Url != "" {
1073 t["url"] = p.Url
1074 }
1075 jo["location"] = t
1076 }
1077 if t := h.Time; t != nil {
1078 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1079 if t.Duration != 0 {
1080 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1081 }
1082 }
1083 var atts []junk.Junk
1084 for _, d := range h.Donks {
1085 if re_emus.MatchString(d.Name) {
1086 continue
1087 }
1088 jd := junk.New()
1089 jd["mediaType"] = d.Media
1090 jd["name"] = d.Name
1091 jd["summary"] = html.EscapeString(d.Desc)
1092 jd["type"] = "Document"
1093 jd["url"] = d.URL
1094 atts = append(atts, jd)
1095 }
1096 if len(atts) > 0 {
1097 jo["attachment"] = atts
1098 }
1099 j["object"] = jo
1100 case "bonk":
1101 j["type"] = "Announce"
1102 if h.Convoy != "" {
1103 j["context"] = h.Convoy
1104 }
1105 j["object"] = h.XID
1106 case "unbonk":
1107 b := junk.New()
1108 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1109 b["type"] = "Announce"
1110 b["actor"] = user.URL
1111 if h.Convoy != "" {
1112 b["context"] = h.Convoy
1113 }
1114 b["object"] = h.XID
1115 j["type"] = "Undo"
1116 j["object"] = b
1117 case "zonk":
1118 j["type"] = "Delete"
1119 j["object"] = h.XID
1120 case "ack":
1121 j["type"] = "Read"
1122 j["object"] = h.XID
1123 if h.Convoy != "" {
1124 j["context"] = h.Convoy
1125 }
1126 case "deack":
1127 b := junk.New()
1128 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1129 b["type"] = "Read"
1130 b["actor"] = user.URL
1131 b["object"] = h.XID
1132 if h.Convoy != "" {
1133 b["context"] = h.Convoy
1134 }
1135 j["type"] = "Undo"
1136 j["object"] = b
1137 }
1138
1139 return j, jo
1140}
1141
1142var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1143 row := stmtAnyXonk.QueryRow(xid)
1144 honk := scanhonk(row)
1145 if honk == nil || !honk.Public {
1146 return nil, true
1147 }
1148 user, _ := butwhatabout(honk.Username)
1149 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1150 reversehonks(rawhonks)
1151 for _, h := range rawhonks {
1152 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1153 honk.Replies = append(honk.Replies, h)
1154 }
1155 }
1156 donksforhonks([]*Honk{honk})
1157 _, j := jonkjonk(user, honk)
1158 j["@context"] = itiswhatitis
1159
1160 return j.ToBytes(), true
1161}, Limit: 128})
1162
1163func gimmejonk(xid string) ([]byte, bool) {
1164 var j []byte
1165 ok := oldjonks.Get(xid, &j)
1166 return j, ok
1167}
1168
1169func honkworldwide(user *WhatAbout, honk *Honk) {
1170 jonk, _ := jonkjonk(user, honk)
1171 jonk["@context"] = itiswhatitis
1172 msg := jonk.ToBytes()
1173
1174 rcpts := make(map[string]bool)
1175 for _, a := range honk.Audience {
1176 if a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1177 continue
1178 }
1179 var box *Box
1180 ok := boxofboxes.Get(a, &box)
1181 if ok && honk.Public && box.Shared != "" {
1182 rcpts["%"+box.Shared] = true
1183 } else {
1184 rcpts[a] = true
1185 }
1186 }
1187 if honk.Public {
1188 for _, h := range getdubs(user.ID) {
1189 if h.XID == user.URL {
1190 continue
1191 }
1192 var box *Box
1193 ok := boxofboxes.Get(h.XID, &box)
1194 if ok && box.Shared != "" {
1195 rcpts["%"+box.Shared] = true
1196 } else {
1197 rcpts[h.XID] = true
1198 }
1199 }
1200 }
1201 for a := range rcpts {
1202 go deliverate(0, user.ID, a, msg)
1203 }
1204 if honk.Public && len(honk.Onts) > 0 {
1205 collectiveaction(honk)
1206 }
1207}
1208
1209func collectiveaction(honk *Honk) {
1210 user := getserveruser()
1211 for _, ont := range honk.Onts {
1212 dubs := getnameddubs(serverUID, ont)
1213 if len(dubs) == 0 {
1214 continue
1215 }
1216 j := junk.New()
1217 j["@context"] = itiswhatitis
1218 j["type"] = "Add"
1219 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1220 j["actor"] = user.URL
1221 j["object"] = honk.XID
1222 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1223 rcpts := make(map[string]bool)
1224 for _, dub := range dubs {
1225 var box *Box
1226 ok := boxofboxes.Get(dub.XID, &box)
1227 if ok && box.Shared != "" {
1228 rcpts["%"+box.Shared] = true
1229 } else {
1230 rcpts[dub.XID] = true
1231 }
1232 }
1233 msg := j.ToBytes()
1234 for a := range rcpts {
1235 go deliverate(0, user.ID, a, msg)
1236 }
1237 }
1238}
1239
1240func junkuser(user *WhatAbout) []byte {
1241 about := markitzero(user.About)
1242
1243 j := junk.New()
1244 j["@context"] = itiswhatitis
1245 j["id"] = user.URL
1246 j["inbox"] = user.URL + "/inbox"
1247 j["outbox"] = user.URL + "/outbox"
1248 j["name"] = user.Display
1249 j["preferredUsername"] = user.Name
1250 j["summary"] = about
1251 if user.ID > 0 {
1252 j["type"] = "Person"
1253 j["url"] = user.URL
1254 j["followers"] = user.URL + "/followers"
1255 j["following"] = user.URL + "/following"
1256 a := junk.New()
1257 a["type"] = "Image"
1258 a["mediaType"] = "image/png"
1259 if ava := user.Options.Avatar; ava != "" {
1260 a["url"] = ava
1261 } else {
1262 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1263 }
1264 j["icon"] = a
1265 } else {
1266 j["type"] = "Service"
1267 }
1268 k := junk.New()
1269 k["id"] = user.URL + "#key"
1270 k["owner"] = user.URL
1271 k["publicKeyPem"] = user.Key
1272 j["publicKey"] = k
1273
1274 return j.ToBytes()
1275}
1276
1277var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1278 user, err := butwhatabout(name)
1279 if err != nil {
1280 return nil, false
1281 }
1282 return junkuser(user), true
1283}, Duration: 1 * time.Minute})
1284
1285func asjonker(name string) ([]byte, bool) {
1286 var j []byte
1287 ok := oldjonkers.Get(name, &j)
1288 return j, ok
1289}
1290
1291var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1292 m := strings.Split(name, "@")
1293 if len(m) != 2 {
1294 log.Printf("bad fish name: %s", name)
1295 return "", true
1296 }
1297 row := stmtGetXonker.QueryRow(name, "fishname")
1298 var href string
1299 err := row.Scan(&href)
1300 if err == nil {
1301 return href, true
1302 }
1303 log.Printf("fishing for %s", name)
1304 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1305 if err != nil {
1306 log.Printf("failed to go fish %s: %s", name, err)
1307 return "", true
1308 }
1309 links, _ := j.GetArray("links")
1310 for _, li := range links {
1311 l, ok := li.(junk.Junk)
1312 if !ok {
1313 continue
1314 }
1315 href, _ := l.GetString("href")
1316 rel, _ := l.GetString("rel")
1317 t, _ := l.GetString("type")
1318 if rel == "self" && friendorfoe(t) {
1319 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1320 if err != nil {
1321 log.Printf("error saving fishname: %s", err)
1322 }
1323 return href, true
1324 }
1325 }
1326 return href, true
1327}})
1328
1329func gofish(name string) string {
1330 if name[0] == '@' {
1331 name = name[1:]
1332 }
1333 var href string
1334 handfull.Get(name, &href)
1335 return href
1336}
1337
1338func investigate(name string) (*SomeThing, error) {
1339 if name == "" {
1340 return nil, fmt.Errorf("no name")
1341 }
1342 if name[0] == '@' {
1343 name = gofish(name)
1344 }
1345 if name == "" {
1346 return nil, fmt.Errorf("no name")
1347 }
1348 obj, err := GetJunkFast(name)
1349 if err != nil {
1350 return nil, err
1351 }
1352 allinjest(originate(name), obj)
1353 return somethingabout(obj)
1354}
1355
1356func somethingabout(obj junk.Junk) (*SomeThing, error) {
1357 info := new(SomeThing)
1358 t, _ := obj.GetString("type")
1359 switch t {
1360 case "Person":
1361 fallthrough
1362 case "Organization":
1363 fallthrough
1364 case "Application":
1365 fallthrough
1366 case "Service":
1367 info.What = SomeActor
1368 case "OrderedCollection":
1369 fallthrough
1370 case "Collection":
1371 info.What = SomeCollection
1372 default:
1373 return nil, fmt.Errorf("unknown object type")
1374 }
1375 info.XID, _ = obj.GetString("id")
1376 info.Name, _ = obj.GetString("preferredUsername")
1377 if info.Name == "" {
1378 info.Name, _ = obj.GetString("name")
1379 }
1380 info.Owner, _ = obj.GetString("attributedTo")
1381 if info.Owner == "" {
1382 info.Owner = info.XID
1383 }
1384 return info, nil
1385}
1386
1387func allinjest(origin string, obj junk.Junk) {
1388 keyobj, ok := obj.GetMap("publicKey")
1389 if ok {
1390 ingestpubkey(origin, keyobj)
1391 }
1392 ingestboxes(origin, obj)
1393 ingesthandle(origin, obj)
1394}
1395
1396func ingestpubkey(origin string, obj junk.Junk) {
1397 keyobj, ok := obj.GetMap("publicKey")
1398 if ok {
1399 obj = keyobj
1400 }
1401 keyname, ok := obj.GetString("id")
1402 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1403 var data string
1404 err := row.Scan(&data)
1405 if err == nil {
1406 return
1407 }
1408 if !ok || origin != originate(keyname) {
1409 log.Printf("bad key origin %s <> %s", origin, keyname)
1410 return
1411 }
1412 log.Printf("ingesting a needed pubkey: %s", keyname)
1413 owner, ok := obj.GetString("owner")
1414 if !ok {
1415 log.Printf("error finding %s pubkey owner", keyname)
1416 return
1417 }
1418 data, ok = obj.GetString("publicKeyPem")
1419 if !ok {
1420 log.Printf("error finding %s pubkey", keyname)
1421 return
1422 }
1423 if originate(owner) != origin {
1424 log.Printf("bad key owner: %s <> %s", owner, origin)
1425 return
1426 }
1427 _, _, err = httpsig.DecodeKey(data)
1428 if err != nil {
1429 log.Printf("error decoding %s pubkey: %s", keyname, err)
1430 return
1431 }
1432 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey")
1433 if err != nil {
1434 log.Printf("error saving key: %s", err)
1435 }
1436 return
1437}
1438
1439func ingestboxes(origin string, obj junk.Junk) {
1440 ident, _ := obj.GetString("id")
1441 if ident == "" {
1442 return
1443 }
1444 if originate(ident) != origin {
1445 return
1446 }
1447 var info string
1448 row := stmtGetXonker.QueryRow(ident, "boxes")
1449 err := row.Scan(&info)
1450 if err == nil {
1451 return
1452 }
1453 log.Printf("ingesting boxes: %s", ident)
1454 inbox, _ := obj.GetString("inbox")
1455 outbox, _ := obj.GetString("outbox")
1456 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1457 if inbox != "" {
1458 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1459 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
1460 if err != nil {
1461 log.Printf("error saving boxes: %s", err)
1462 }
1463 }
1464}
1465
1466func ingesthandle(origin string, obj junk.Junk) {
1467 xid, _ := obj.GetString("id")
1468 if xid == "" {
1469 return
1470 }
1471 if originate(xid) != origin {
1472 return
1473 }
1474 var handle string
1475 row := stmtGetXonker.QueryRow(xid, "handle")
1476 err := row.Scan(&handle)
1477 if err == nil {
1478 return
1479 }
1480 handle, _ = obj.GetString("preferredUsername")
1481 if handle != "" {
1482 _, err = stmtSaveXonker.Exec(xid, handle, "handle")
1483 if err != nil {
1484 log.Printf("error saving handle: %s", err)
1485 }
1486 }
1487}