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/htfilter"
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 var buf bytes.Buffer
62 j.Write(&buf)
63 return PostMsg(keyname, key, url, buf.Bytes())
64}
65
66func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
67 client := http.DefaultClient
68 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
69 if err != nil {
70 return err
71 }
72 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
73 req.Header.Set("Content-Type", theonetruename)
74 httpsig.SignRequest(keyname, key, req, msg)
75 resp, err := client.Do(req)
76 if err != nil {
77 return err
78 }
79 resp.Body.Close()
80 switch resp.StatusCode {
81 case 200:
82 case 201:
83 case 202:
84 default:
85 return fmt.Errorf("http post status: %d", resp.StatusCode)
86 }
87 log.Printf("successful post: %s %d", url, resp.StatusCode)
88 return nil
89}
90
91func GetJunk(url string) (junk.Junk, error) {
92 return GetJunkTimeout(url, 30*time.Second)
93}
94
95func GetJunkFast(url string) (junk.Junk, error) {
96 return GetJunkTimeout(url, 5*time.Second)
97}
98
99func GetJunkHardMode(url string) (junk.Junk, error) {
100 j, err := GetJunk(url)
101 if err != nil {
102 emsg := err.Error()
103 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
104 log.Printf("trying again after error: %s", emsg)
105 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
106 j, err = GetJunk(url)
107 if err != nil {
108 log.Printf("still couldn't get it")
109 } else {
110 log.Printf("retry success!")
111 }
112 }
113 }
114 return j, err
115}
116
117func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
118 at := thefakename
119 if strings.Contains(url, ".well-known/webfinger?resource") {
120 at = "application/jrd+json"
121 }
122 return junk.Get(url, junk.GetArgs{
123 Accept: at,
124 Agent: "honksnonk/5.0; " + serverName,
125 Timeout: timeout,
126 })
127}
128
129func savedonk(url string, name, desc, media string, localize bool) *Donk {
130 if url == "" {
131 return nil
132 }
133 donk := finddonk(url)
134 if donk != nil {
135 return donk
136 }
137 donk = new(Donk)
138 log.Printf("saving donk: %s", url)
139 xid := xfiltrate()
140 data := []byte{}
141 if localize {
142 resp, err := http.Get(url)
143 if err != nil {
144 log.Printf("error fetching %s: %s", url, err)
145 localize = false
146 goto saveit
147 }
148 defer resp.Body.Close()
149 if resp.StatusCode != 200 {
150 localize = false
151 goto saveit
152 }
153 var buf bytes.Buffer
154 limiter := io.LimitReader(resp.Body, 10*1024*1024)
155 io.Copy(&buf, limiter)
156
157 data = buf.Bytes()
158 if len(data) == 10*1024*1024 {
159 log.Printf("truncation likely")
160 }
161 if strings.HasPrefix(media, "image") {
162 img, err := image.Vacuum(&buf,
163 image.Params{LimitSize: 4200 * 4200, MaxWidth: 2048, MaxHeight: 2048})
164 if err != nil {
165 log.Printf("unable to decode image: %s", err)
166 localize = false
167 data = []byte{}
168 goto saveit
169 }
170 data = img.Data
171 format := img.Format
172 media = "image/" + format
173 if format == "jpeg" {
174 format = "jpg"
175 }
176 xid = xid + "." + format
177 } else if len(data) > 100000 {
178 log.Printf("not saving large attachment")
179 localize = false
180 data = []byte{}
181 }
182 }
183saveit:
184 fileid, err := savefile(xid, name, desc, url, media, localize, data)
185 if err != nil {
186 log.Printf("error saving file %s: %s", url, err)
187 return nil
188 }
189 donk.FileID = fileid
190 donk.XID = xid
191 return donk
192}
193
194func iszonked(userid int64, xid string) bool {
195 row := stmtFindZonk.QueryRow(userid, xid)
196 var id int64
197 err := row.Scan(&id)
198 if err == nil {
199 return true
200 }
201 if err != sql.ErrNoRows {
202 log.Printf("error querying zonk: %s", err)
203 }
204 return false
205}
206
207func needxonk(user *WhatAbout, x *Honk) bool {
208 if rejectxonk(x) {
209 return false
210 }
211 return needxonkid(user, x.XID)
212}
213func needxonkid(user *WhatAbout, xid string) bool {
214 if strings.HasPrefix(xid, user.URL+"/") {
215 return false
216 }
217 if rejectorigin(user.ID, xid) {
218 return false
219 }
220 if iszonked(user.ID, xid) {
221 log.Printf("already zonked: %s", xid)
222 return false
223 }
224 row := stmtFindXonk.QueryRow(user.ID, xid)
225 var id int64
226 err := row.Scan(&id)
227 if err == nil {
228 return false
229 }
230 if err != sql.ErrNoRows {
231 log.Printf("error querying xonk: %s", err)
232 }
233 return true
234}
235
236func eradicatexonk(userid int64, xid string) {
237 xonk := getxonk(userid, xid)
238 if xonk != nil {
239 deletehonk(xonk.ID)
240 }
241 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
242 if err != nil {
243 log.Printf("error eradicating: %s", err)
244 }
245}
246
247func savexonk(x *Honk) {
248 log.Printf("saving xonk: %s", x.XID)
249 go prehandle(x.Honker)
250 go prehandle(x.Oonker)
251 savehonk(x)
252}
253
254type Box struct {
255 In string
256 Out string
257 Shared string
258}
259
260var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
261 var info string
262 row := stmtGetXonker.QueryRow(ident, "boxes")
263 err := row.Scan(&info)
264 if err == nil {
265 m := strings.Split(info, " ")
266 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
267 return b, true
268 }
269 j, err := GetJunk(ident)
270 if err != nil {
271 log.Printf("error getting boxes: %s", err)
272 return nil, false
273 }
274 inbox, _ := j.GetString("inbox")
275 outbox, _ := j.GetString("outbox")
276 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
277 b := &Box{In: inbox, Out: outbox, Shared: sbox}
278 if inbox != "" {
279 m := strings.Join([]string{inbox, outbox, sbox}, " ")
280 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
281 if err != nil {
282 log.Printf("error saving boxes: %s", err)
283 }
284 }
285 return b, true
286}})
287
288func gimmexonks(user *WhatAbout, outbox string) {
289 log.Printf("getting outbox: %s", outbox)
290 j, err := GetJunk(outbox)
291 if err != nil {
292 log.Printf("error getting outbox: %s", err)
293 return
294 }
295 t, _ := j.GetString("type")
296 origin := originate(outbox)
297 if t == "OrderedCollection" {
298 items, _ := j.GetArray("orderedItems")
299 if items == nil {
300 items, _ = j.GetArray("items")
301 }
302 if items == nil {
303 obj, ok := j.GetMap("first")
304 if ok {
305 items, _ = obj.GetArray("orderedItems")
306 } else {
307 page1, ok := j.GetString("first")
308 if ok {
309 j, err = GetJunk(page1)
310 if err != nil {
311 log.Printf("error gettings page1: %s", err)
312 return
313 }
314 items, _ = j.GetArray("orderedItems")
315 }
316 }
317 }
318 if len(items) > 20 {
319 items = items[0:20]
320 }
321 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
322 items[i], items[j] = items[j], items[i]
323 }
324 for _, item := range items {
325 obj, ok := item.(junk.Junk)
326 if !ok {
327 continue
328 }
329 xonksaver(user, obj, origin)
330 }
331 }
332}
333
334func peeppeep() {
335 user, _ := butwhatabout("htest")
336 honkers := gethonkers(user.ID)
337 for _, f := range honkers {
338 if f.Flavor != "peep" {
339 continue
340 }
341 log.Printf("getting updates: %s", f.XID)
342 var box *Box
343 ok := boxofboxes.Get(f.XID, &box)
344 if !ok {
345 log.Printf("error getting outbox")
346 continue
347 }
348 gimmexonks(user, box.Out)
349 }
350}
351func whosthere(xid string) ([]string, string) {
352 obj, err := GetJunk(xid)
353 if err != nil {
354 log.Printf("error getting remote xonk: %s", err)
355 return nil, ""
356 }
357 convoy, _ := obj.GetString("context")
358 if convoy == "" {
359 convoy, _ = obj.GetString("conversation")
360 }
361 return newphone(nil, obj), convoy
362}
363
364func newphone(a []string, obj junk.Junk) []string {
365 for _, addr := range []string{"to", "cc", "attributedTo"} {
366 who, _ := obj.GetString(addr)
367 if who != "" {
368 a = append(a, who)
369 }
370 whos, _ := obj.GetArray(addr)
371 for _, w := range whos {
372 who, _ := w.(string)
373 if who != "" {
374 a = append(a, who)
375 }
376 }
377 }
378 return a
379}
380
381func extractattrto(obj junk.Junk) string {
382 who, _ := obj.GetString("attributedTo")
383 if who != "" {
384 return who
385 }
386 o, ok := obj.GetMap("attributedTo")
387 if ok {
388 id, ok := o.GetString("id")
389 if ok {
390 return id
391 }
392 }
393 arr, _ := obj.GetArray("attributedTo")
394 for _, a := range arr {
395 o, ok := a.(junk.Junk)
396 if ok {
397 t, _ := o.GetString("type")
398 id, _ := o.GetString("id")
399 if t == "Person" || t == "" {
400 return id
401 }
402 }
403 s, ok := a.(string)
404 if ok {
405 return s
406 }
407 }
408 return ""
409}
410
411func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
412 depth := 0
413 maxdepth := 10
414 currenttid := ""
415 goingup := 0
416 var xonkxonkfn func(item junk.Junk, origin string) *Honk
417
418 saveonemore := func(xid string) {
419 log.Printf("getting onemore: %s", xid)
420 if depth >= maxdepth {
421 log.Printf("in too deep")
422 return
423 }
424 obj, err := GetJunkHardMode(xid)
425 if err != nil {
426 log.Printf("error getting onemore: %s: %s", xid, err)
427 return
428 }
429 depth++
430 xonkxonkfn(obj, originate(xid))
431 depth--
432 }
433
434 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
435 // id, _ := item.GetString( "id")
436 what, _ := item.GetString("type")
437 dt, _ := item.GetString("published")
438
439 var err error
440 var xid, rid, url, content, precis, convoy string
441 var replies []string
442 var obj junk.Junk
443 var ok bool
444 isUpdate := false
445 switch what {
446 case "Delete":
447 obj, ok = item.GetMap("object")
448 if ok {
449 xid, _ = obj.GetString("id")
450 } else {
451 xid, _ = item.GetString("object")
452 }
453 if xid == "" {
454 return nil
455 }
456 if originate(xid) != origin {
457 log.Printf("forged delete: %s", xid)
458 return nil
459 }
460 log.Printf("eradicating %s", xid)
461 eradicatexonk(user.ID, xid)
462 return nil
463 case "Tombstone":
464 xid, _ = item.GetString("id")
465 if xid == "" {
466 return nil
467 }
468 if originate(xid) != origin {
469 log.Printf("forged delete: %s", xid)
470 return nil
471 }
472 log.Printf("eradicating %s", xid)
473 eradicatexonk(user.ID, xid)
474 return nil
475 case "Announce":
476 obj, ok = item.GetMap("object")
477 if ok {
478 xid, _ = obj.GetString("id")
479 } else {
480 xid, _ = item.GetString("object")
481 }
482 if !needxonkid(user, xid) {
483 return nil
484 }
485 log.Printf("getting bonk: %s", xid)
486 obj, err = GetJunkHardMode(xid)
487 if err != nil {
488 log.Printf("error getting bonk: %s: %s", xid, err)
489 }
490 origin = originate(xid)
491 what = "bonk"
492 case "Update":
493 isUpdate = true
494 fallthrough
495 case "Create":
496 obj, ok = item.GetMap("object")
497 if !ok {
498 xid, _ = item.GetString("object")
499 log.Printf("getting created honk: %s", xid)
500 obj, err = GetJunkHardMode(xid)
501 if err != nil {
502 log.Printf("error getting creation: %s", err)
503 }
504 }
505 what = "honk"
506 if obj != nil {
507 t, _ := obj.GetString("type")
508 switch t {
509 case "Event":
510 what = "event"
511 }
512 }
513 case "Read":
514 xid, ok = item.GetString("object")
515 if ok {
516 if !needxonkid(user, xid) {
517 log.Printf("don't need read obj: %s", xid)
518 return nil
519 }
520 obj, err = GetJunkHardMode(xid)
521 if err != nil {
522 log.Printf("error getting read: %s", err)
523 return nil
524 }
525 return xonkxonkfn(obj, originate(xid))
526 }
527 return nil
528 case "Audio":
529 fallthrough
530 case "Video":
531 fallthrough
532 case "Question":
533 fallthrough
534 case "Note":
535 fallthrough
536 case "Article":
537 fallthrough
538 case "Page":
539 obj = item
540 what = "honk"
541 case "Event":
542 obj = item
543 what = "event"
544 default:
545 log.Printf("unknown activity: %s", what)
546 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
547 item.Write(fd)
548 io.WriteString(fd, "\n")
549 fd.Close()
550 return nil
551 }
552
553 if obj != nil {
554 _, ok := obj.GetString("diaspora:guid")
555 if ok {
556 // friendica does the silliest bonks
557 c, ok := obj.FindString([]string{"source", "content"})
558 if ok {
559 re_link := regexp.MustCompile(`link='([^']*)'`)
560 m := re_link.FindStringSubmatch(c)
561 if len(m) > 1 {
562 xid := m[1]
563 log.Printf("getting friendica flavored bonk: %s", xid)
564 if !needxonkid(user, xid) {
565 return nil
566 }
567 newobj, err := GetJunkHardMode(xid)
568 if err != nil {
569 log.Printf("error getting bonk: %s: %s", xid, err)
570 } else {
571 obj = newobj
572 origin = originate(xid)
573 what = "bonk"
574 }
575 }
576 }
577 }
578 }
579
580 var xonk Honk
581 // early init
582 xonk.UserID = user.ID
583 xonk.Honker, _ = item.GetString("actor")
584 if xonk.Honker == "" {
585 xonk.Honker, _ = item.GetString("attributedTo")
586 }
587 if obj != nil {
588 if xonk.Honker == "" {
589 xonk.Honker = extractattrto(obj)
590 }
591 xonk.Oonker = extractattrto(obj)
592 if xonk.Oonker == xonk.Honker {
593 xonk.Oonker = ""
594 }
595 xonk.Audience = newphone(nil, obj)
596 }
597 xonk.Audience = append(xonk.Audience, xonk.Honker)
598 xonk.Audience = oneofakind(xonk.Audience)
599 for _, a := range xonk.Audience {
600 if a == user.URL {
601 xonk.Whofore = 1
602 }
603 }
604
605 if obj != nil {
606 ot, _ := obj.GetString("type")
607 url, _ = obj.GetString("url")
608 dt2, ok := obj.GetString("published")
609 if ok {
610 dt = dt2
611 }
612 xid, _ = obj.GetString("id")
613 precis, _ = obj.GetString("summary")
614 if precis == "" {
615 precis, _ = obj.GetString("name")
616 }
617 content, _ = obj.GetString("content")
618 if !strings.HasPrefix(content, "<p>") {
619 content = "<p>" + content
620 }
621 sens, _ := obj["sensitive"].(bool)
622 if sens && precis == "" {
623 precis = "unspecified horror"
624 }
625 rid, ok = obj.GetString("inReplyTo")
626 if !ok {
627 robj, ok := obj.GetMap("inReplyTo")
628 if ok {
629 rid, _ = robj.GetString("id")
630 }
631 }
632 convoy, _ = obj.GetString("context")
633 if strings.HasSuffix(convoy, "#context") &&
634 originate(convoy) != originate(xid) {
635 // friendica...
636 convoy = ""
637 }
638 if convoy == "" {
639 convoy, _ = obj.GetString("conversation")
640 }
641 if ot == "Question" {
642 if what == "honk" {
643 what = "qonk"
644 }
645 content += "<ul>"
646 ans, _ := obj.GetArray("oneOf")
647 for _, ai := range ans {
648 a, ok := ai.(junk.Junk)
649 if !ok {
650 continue
651 }
652 as, _ := a.GetString("name")
653 content += "<li>" + as
654 }
655 ans, _ = obj.GetArray("anyOf")
656 for _, ai := range ans {
657 a, ok := ai.(junk.Junk)
658 if !ok {
659 continue
660 }
661 as, _ := a.GetString("name")
662 content += "<li>" + as
663 }
664 content += "</ul>"
665 }
666 if what == "honk" && rid != "" {
667 what = "tonk"
668 }
669 atts, _ := obj.GetArray("attachment")
670 for i, atti := range atts {
671 att, ok := atti.(junk.Junk)
672 if !ok {
673 continue
674 }
675 at, _ := att.GetString("type")
676 mt, _ := att.GetString("mediaType")
677 u, _ := att.GetString("url")
678 name, _ := att.GetString("name")
679 desc, _ := att.GetString("summary")
680 if desc == "" {
681 desc = name
682 }
683 localize := false
684 if i > 4 {
685 log.Printf("excessive attachment: %s", at)
686 } else if at == "Document" || at == "Image" {
687 mt = strings.ToLower(mt)
688 log.Printf("attachment: %s %s", mt, u)
689 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
690 localize = true
691 }
692 } else {
693 log.Printf("unknown attachment: %s", at)
694 }
695 if skipMedia(&xonk) {
696 localize = false
697 }
698 donk := savedonk(u, name, desc, mt, localize)
699 if donk != nil {
700 xonk.Donks = append(xonk.Donks, donk)
701 }
702 }
703 tags, _ := obj.GetArray("tag")
704 for _, tagi := range tags {
705 tag, ok := tagi.(junk.Junk)
706 if !ok {
707 continue
708 }
709 tt, _ := tag.GetString("type")
710 name, _ := tag.GetString("name")
711 desc, _ := tag.GetString("summary")
712 if desc == "" {
713 desc = name
714 }
715 if tt == "Emoji" {
716 icon, _ := tag.GetMap("icon")
717 mt, _ := icon.GetString("mediaType")
718 if mt == "" {
719 mt = "image/png"
720 }
721 u, _ := icon.GetString("url")
722 donk := savedonk(u, name, desc, mt, true)
723 if donk != nil {
724 xonk.Donks = append(xonk.Donks, donk)
725 }
726 }
727 if tt == "Hashtag" {
728 if name == "" || name == "#" {
729 // skip it
730 } else {
731 if name[0] != '#' {
732 name = "#" + name
733 }
734 xonk.Onts = append(xonk.Onts, name)
735 }
736 }
737 if tt == "Place" {
738 p := new(Place)
739 p.Name = name
740 p.Latitude, _ = tag["latitude"].(float64)
741 p.Longitude, _ = tag["longitude"].(float64)
742 p.Url, _ = tag.GetString("url")
743 xonk.Place = p
744 }
745 }
746 starttime, ok := obj.GetString("startTime")
747 if ok {
748 start, err := time.Parse(time.RFC3339, starttime)
749 if err == nil {
750 t := new(Time)
751 t.StartTime = start
752 endtime, _ := obj.GetString("endTime")
753 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
754 dura, _ := obj.GetString("duration")
755 if strings.HasPrefix(dura, "PT") {
756 dura = strings.ToLower(dura[2:])
757 d, _ := time.ParseDuration(dura)
758 t.Duration = Duration(d)
759 }
760 xonk.Time = t
761 }
762 }
763 loca, ok := obj.GetMap("location")
764 if ok {
765 tt, _ := loca.GetString("type")
766 name, _ := loca.GetString("name")
767 if tt == "Place" {
768 p := new(Place)
769 p.Name = name
770 p.Latitude, _ = loca["latitude"].(float64)
771 p.Longitude, _ = loca["longitude"].(float64)
772 p.Url, _ = loca.GetString("url")
773 xonk.Place = p
774 }
775 }
776
777 xonk.Onts = oneofakind(xonk.Onts)
778 replyobj, ok := obj.GetMap("replies")
779 if ok {
780 items, ok := replyobj.GetArray("items")
781 if !ok {
782 first, ok := replyobj.GetMap("first")
783 if ok {
784 items, _ = first.GetArray("items")
785 }
786 }
787 for _, repl := range items {
788 s, ok := repl.(string)
789 if ok {
790 replies = append(replies, s)
791 }
792 }
793 }
794
795 }
796 if originate(xid) != origin {
797 log.Printf("original sin: %s <> %s", xid, origin)
798 item.Write(os.Stdout)
799 return nil
800 }
801
802 if currenttid == "" {
803 currenttid = convoy
804 }
805
806 if len(content) > 90001 {
807 log.Printf("content too long. truncating")
808 content = content[:90001]
809 }
810
811 // grab any inline imgs
812 imgfilt := htfilter.New()
813 imgfilt.Imager = inlineimgs
814 imgfilt.String(content)
815
816 // init xonk
817 xonk.What = what
818 xonk.XID = xid
819 xonk.RID = rid
820 xonk.Date, _ = time.Parse(time.RFC3339, dt)
821 xonk.URL = url
822 xonk.Noise = content
823 xonk.Precis = precis
824 xonk.Format = "html"
825 xonk.Convoy = convoy
826
827 if isUpdate {
828 log.Printf("something has changed! %s", xonk.XID)
829 prev := getxonk(user.ID, xonk.XID)
830 if prev == nil {
831 log.Printf("didn't find old version for update: %s", xonk.XID)
832 isUpdate = false
833 } else {
834 prev.Noise = xonk.Noise
835 prev.Precis = xonk.Precis
836 prev.Date = xonk.Date
837 prev.Donks = xonk.Donks
838 prev.Onts = xonk.Onts
839 prev.Place = xonk.Place
840 updatehonk(prev)
841 }
842 }
843 if !isUpdate && needxonk(user, &xonk) {
844 if rid != "" {
845 if needxonkid(user, rid) {
846 goingup++
847 saveonemore(rid)
848 goingup--
849 }
850 if convoy == "" {
851 xx := getxonk(user.ID, rid)
852 if xx != nil {
853 convoy = xx.Convoy
854 }
855 }
856 }
857 if convoy == "" {
858 convoy = currenttid
859 }
860 if convoy == "" {
861 convoy = "missing-" + xfiltrate()
862 currenttid = convoy
863 }
864 xonk.Convoy = convoy
865 savexonk(&xonk)
866 }
867 if goingup == 0 {
868 for _, replid := range replies {
869 if needxonkid(user, replid) {
870 log.Printf("missing a reply: %s", replid)
871 saveonemore(replid)
872 }
873 }
874 }
875 return &xonk
876 }
877
878 return xonkxonkfn(item, origin)
879}
880
881func rubadubdub(user *WhatAbout, req junk.Junk) {
882 xid, _ := req.GetString("id")
883 actor, _ := req.GetString("actor")
884 j := junk.New()
885 j["@context"] = itiswhatitis
886 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
887 j["type"] = "Accept"
888 j["actor"] = user.URL
889 j["to"] = actor
890 j["published"] = time.Now().UTC().Format(time.RFC3339)
891 j["object"] = req
892
893 var buf bytes.Buffer
894 j.Write(&buf)
895 msg := buf.Bytes()
896
897 deliverate(0, user.Name, actor, msg)
898}
899
900func itakeitallback(user *WhatAbout, xid string) {
901 j := junk.New()
902 j["@context"] = itiswhatitis
903 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
904 j["type"] = "Undo"
905 j["actor"] = user.URL
906 j["to"] = xid
907 f := junk.New()
908 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
909 f["type"] = "Follow"
910 f["actor"] = user.URL
911 f["to"] = xid
912 f["object"] = xid
913 j["object"] = f
914 j["published"] = time.Now().UTC().Format(time.RFC3339)
915
916 var buf bytes.Buffer
917 j.Write(&buf)
918 msg := buf.Bytes()
919
920 deliverate(0, user.Name, xid, msg)
921}
922
923func subsub(user *WhatAbout, xid string) {
924 if xid == "" {
925 log.Printf("can't subscribe to empty")
926 return
927 }
928 j := junk.New()
929 j["@context"] = itiswhatitis
930 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
931 j["type"] = "Follow"
932 j["actor"] = user.URL
933 j["to"] = xid
934 j["object"] = xid
935 j["published"] = time.Now().UTC().Format(time.RFC3339)
936
937 var buf bytes.Buffer
938 j.Write(&buf)
939 msg := buf.Bytes()
940
941 deliverate(0, user.Name, xid, msg)
942}
943
944// returns activity, object
945func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
946 dt := h.Date.Format(time.RFC3339)
947 var jo junk.Junk
948 j := junk.New()
949 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
950 j["actor"] = user.URL
951 j["published"] = dt
952 if h.Public {
953 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
954 } else {
955 j["to"] = h.Audience[0]
956 }
957 if len(h.Audience) > 1 {
958 j["cc"] = h.Audience[1:]
959 }
960
961 switch h.What {
962 case "update":
963 fallthrough
964 case "tonk":
965 fallthrough
966 case "event":
967 fallthrough
968 case "honk":
969 j["type"] = "Create"
970 if h.What == "update" {
971 j["type"] = "Update"
972 }
973
974 jo = junk.New()
975 jo["id"] = h.XID
976 jo["type"] = "Note"
977 if h.What == "event" {
978 jo["type"] = "Event"
979 }
980 jo["published"] = dt
981 jo["url"] = h.XID
982 jo["attributedTo"] = user.URL
983 if h.RID != "" {
984 jo["inReplyTo"] = h.RID
985 }
986 if h.Convoy != "" {
987 jo["context"] = h.Convoy
988 jo["conversation"] = h.Convoy
989 }
990 jo["to"] = h.Audience[0]
991 if len(h.Audience) > 1 {
992 jo["cc"] = h.Audience[1:]
993 }
994 if !h.Public {
995 jo["directMessage"] = true
996 }
997 translate(h)
998 h.Noise = re_memes.ReplaceAllString(h.Noise, "")
999 jo["summary"] = html.EscapeString(h.Precis)
1000 jo["content"] = ontologize(mentionize(h.Noise))
1001 if strings.HasPrefix(h.Precis, "DZ:") {
1002 jo["sensitive"] = true
1003 }
1004
1005 var replies []string
1006 for _, reply := range h.Replies {
1007 replies = append(replies, reply.XID)
1008 }
1009 if len(replies) > 0 {
1010 jr := junk.New()
1011 jr["type"] = "Collection"
1012 jr["totalItems"] = len(replies)
1013 jr["items"] = replies
1014 jo["replies"] = jr
1015 }
1016
1017 var tags []junk.Junk
1018 g := bunchofgrapes(h.Noise)
1019 for _, m := range g {
1020 t := junk.New()
1021 t["type"] = "Mention"
1022 t["name"] = m.who
1023 t["href"] = m.where
1024 tags = append(tags, t)
1025 }
1026 for _, o := range h.Onts {
1027 t := junk.New()
1028 t["type"] = "Hashtag"
1029 o = strings.ToLower(o)
1030 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1031 t["name"] = o
1032 tags = append(tags, t)
1033 }
1034 herd := herdofemus(h.Noise)
1035 for _, e := range herd {
1036 t := junk.New()
1037 t["id"] = e.ID
1038 t["type"] = "Emoji"
1039 t["name"] = e.Name
1040 i := junk.New()
1041 i["type"] = "Image"
1042 i["mediaType"] = "image/png"
1043 i["url"] = e.ID
1044 t["icon"] = i
1045 tags = append(tags, t)
1046 }
1047 if p := h.Place; p != nil {
1048 t := junk.New()
1049 t["type"] = "Place"
1050 t["name"] = p.Name
1051 t["latitude"] = p.Latitude
1052 t["longitude"] = p.Longitude
1053 t["url"] = p.Url
1054 if h.What == "event" {
1055 jo["location"] = t
1056 } else {
1057 tags = append(tags, t)
1058 }
1059 }
1060 if len(tags) > 0 {
1061 jo["tag"] = tags
1062 }
1063 if t := h.Time; t != nil {
1064 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1065 if t.Duration != 0 {
1066 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1067 }
1068 }
1069 var atts []junk.Junk
1070 for _, d := range h.Donks {
1071 if re_emus.MatchString(d.Name) {
1072 continue
1073 }
1074 jd := junk.New()
1075 jd["mediaType"] = d.Media
1076 jd["name"] = d.Name
1077 jd["summary"] = html.EscapeString(d.Desc)
1078 jd["type"] = "Document"
1079 jd["url"] = d.URL
1080 atts = append(atts, jd)
1081 }
1082 if len(atts) > 0 {
1083 jo["attachment"] = atts
1084 }
1085 j["object"] = jo
1086 case "bonk":
1087 j["type"] = "Announce"
1088 if h.Convoy != "" {
1089 j["context"] = h.Convoy
1090 }
1091 j["object"] = h.XID
1092 case "unbonk":
1093 b := junk.New()
1094 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1095 b["type"] = "Announce"
1096 b["actor"] = user.URL
1097 if h.Convoy != "" {
1098 b["context"] = h.Convoy
1099 }
1100 b["object"] = h.XID
1101 j["type"] = "Undo"
1102 j["object"] = b
1103 case "zonk":
1104 j["type"] = "Delete"
1105 j["object"] = h.XID
1106 case "ack":
1107 j["type"] = "Read"
1108 j["object"] = h.XID
1109 case "deack":
1110 b := junk.New()
1111 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1112 b["type"] = "Read"
1113 b["actor"] = user.URL
1114 b["object"] = h.XID
1115 j["type"] = "Undo"
1116 j["object"] = b
1117 }
1118
1119 return j, jo
1120}
1121
1122var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1123 row := stmtAnyXonk.QueryRow(xid)
1124 honk := scanhonk(row)
1125 if honk == nil || !honk.Public {
1126 return nil, true
1127 }
1128 user, _ := butwhatabout(honk.Username)
1129 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy)
1130 reversehonks(rawhonks)
1131 for _, h := range rawhonks {
1132 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1133 honk.Replies = append(honk.Replies, h)
1134 }
1135 }
1136 donksforhonks([]*Honk{honk})
1137 _, j := jonkjonk(user, honk)
1138 j["@context"] = itiswhatitis
1139 var buf bytes.Buffer
1140 j.Write(&buf)
1141 return buf.Bytes(), true
1142}})
1143
1144func gimmejonk(xid string) ([]byte, bool) {
1145 var j []byte
1146 ok := oldjonks.Get(xid, &j)
1147 return j, ok
1148}
1149
1150func honkworldwide(user *WhatAbout, honk *Honk) {
1151 jonk, _ := jonkjonk(user, honk)
1152 jonk["@context"] = itiswhatitis
1153 var buf bytes.Buffer
1154 jonk.Write(&buf)
1155 msg := buf.Bytes()
1156
1157 rcpts := make(map[string]bool)
1158 for _, a := range honk.Audience {
1159 if a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1160 continue
1161 }
1162 var box *Box
1163 ok := boxofboxes.Get(a, &box)
1164 if ok && honk.Public && box.Shared != "" {
1165 rcpts["%"+box.Shared] = true
1166 } else {
1167 rcpts[a] = true
1168 }
1169 }
1170 if honk.Public {
1171 for _, f := range getdubs(user.ID) {
1172 if f.XID == user.URL {
1173 continue
1174 }
1175 var box *Box
1176 ok := boxofboxes.Get(f.XID, &box)
1177 if ok && box.Shared != "" {
1178 rcpts["%"+box.Shared] = true
1179 } else {
1180 rcpts[f.XID] = true
1181 }
1182 }
1183 }
1184 for a := range rcpts {
1185 go deliverate(0, user.Name, a, msg)
1186 }
1187}
1188
1189var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1190 user, err := butwhatabout(name)
1191 if err != nil {
1192 return nil, false
1193 }
1194 about := markitzero(user.About)
1195
1196 j := junk.New()
1197 j["@context"] = itiswhatitis
1198 j["id"] = user.URL
1199 j["type"] = "Person"
1200 j["inbox"] = user.URL + "/inbox"
1201 j["outbox"] = user.URL + "/outbox"
1202 j["followers"] = user.URL + "/followers"
1203 j["following"] = user.URL + "/following"
1204 j["name"] = user.Display
1205 j["preferredUsername"] = user.Name
1206 j["summary"] = about
1207 j["url"] = user.URL
1208 a := junk.New()
1209 a["type"] = "Image"
1210 a["mediaType"] = "image/png"
1211 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1212 j["icon"] = a
1213 k := junk.New()
1214 k["id"] = user.URL + "#key"
1215 k["owner"] = user.URL
1216 k["publicKeyPem"] = user.Key
1217 j["publicKey"] = k
1218
1219 var buf bytes.Buffer
1220 j.Write(&buf)
1221 return buf.Bytes(), true
1222}, Duration: 1 * time.Minute})
1223
1224func asjonker(name string) ([]byte, bool) {
1225 var j []byte
1226 ok := oldjonkers.Get(name, &j)
1227 return j, ok
1228}
1229
1230var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1231 m := strings.Split(name, "@")
1232 if len(m) != 2 {
1233 log.Printf("bad fish name: %s", name)
1234 return "", true
1235 }
1236 row := stmtGetXonker.QueryRow(name, "fishname")
1237 var href string
1238 err := row.Scan(&href)
1239 if err == nil {
1240 return href, true
1241 }
1242 log.Printf("fishing for %s", name)
1243 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1244 if err != nil {
1245 log.Printf("failed to go fish %s: %s", name, err)
1246 return "", true
1247 }
1248 links, _ := j.GetArray("links")
1249 for _, li := range links {
1250 l, ok := li.(junk.Junk)
1251 if !ok {
1252 continue
1253 }
1254 href, _ := l.GetString("href")
1255 rel, _ := l.GetString("rel")
1256 t, _ := l.GetString("type")
1257 if rel == "self" && friendorfoe(t) {
1258 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1259 if err != nil {
1260 log.Printf("error saving fishname: %s", err)
1261 }
1262 return href, true
1263 }
1264 }
1265 return href, true
1266}})
1267
1268func gofish(name string) string {
1269 if name[0] == '@' {
1270 name = name[1:]
1271 }
1272 var href string
1273 handfull.Get(name, &href)
1274 return href
1275}
1276
1277func isactor(t string) bool {
1278 switch t {
1279 case "Person":
1280 case "Organization":
1281 case "Application":
1282 case "Service":
1283 default:
1284 return false
1285 }
1286 return true
1287}
1288
1289func investigate(name string) (*Honker, error) {
1290 if name == "" {
1291 return nil, fmt.Errorf("no name")
1292 }
1293 if name[0] == '@' {
1294 name = gofish(name)
1295 }
1296 if name == "" {
1297 return nil, fmt.Errorf("no name")
1298 }
1299 log.Printf("digging up some info on %s", name)
1300 obj, err := GetJunkFast(name)
1301 if err != nil {
1302 log.Printf("error investigating honker: %s", err)
1303 return nil, err
1304 }
1305 t, _ := obj.GetString("type")
1306 if !isactor(t) {
1307 log.Printf("it's not a person! %s", name)
1308 return nil, err
1309 }
1310 xid, _ := obj.GetString("id")
1311 handle, _ := obj.GetString("preferredUsername")
1312 return &Honker{XID: xid, Handle: handle}, nil
1313}