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