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 "io"
24 "log"
25 notrand "math/rand"
26 "net/http"
27 "net/url"
28 "os"
29 "strings"
30 "sync"
31 "time"
32
33 "humungus.tedunangst.com/r/webs/httpsig"
34 "humungus.tedunangst.com/r/webs/image"
35 "humungus.tedunangst.com/r/webs/junk"
36)
37
38var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
39var thefakename = `application/activity+json`
40var falsenames = []string{
41 `application/ld+json`,
42 `application/activity+json`,
43}
44var itiswhatitis = "https://www.w3.org/ns/activitystreams"
45var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
46
47func friendorfoe(ct string) bool {
48 ct = strings.ToLower(ct)
49 for _, at := range falsenames {
50 if strings.HasPrefix(ct, at) {
51 return true
52 }
53 }
54 return false
55}
56
57func PostJunk(keyname string, key *rsa.PrivateKey, url string, j junk.Junk) error {
58 var buf bytes.Buffer
59 j.Write(&buf)
60 return PostMsg(keyname, key, url, buf.Bytes())
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
88func GetJunk(url string) (junk.Junk, error) {
89 return GetJunkTimeout(url, 30*time.Second)
90}
91
92func GetJunkFast(url string) (junk.Junk, error) {
93 return GetJunkTimeout(url, 5*time.Second)
94}
95
96func GetJunkHardMode(url string) (junk.Junk, error) {
97 j, err := GetJunk(url)
98 if err != nil {
99 emsg := err.Error()
100 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
101 log.Printf("trying again after error: %s", emsg)
102 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
103 j, err = GetJunk(url)
104 if err != nil {
105 log.Printf("still couldn't get it")
106 } else {
107 log.Printf("retry success!")
108 }
109 }
110 }
111 return j, err
112}
113
114func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
115 at := thefakename
116 if strings.Contains(url, ".well-known/webfinger?resource") {
117 at = "application/jrd+json"
118 }
119 return junk.Get(url, junk.GetArgs{
120 Accept: at,
121 Agent: "honksnonk/5.0; " + serverName,
122 Timeout: timeout,
123 })
124}
125
126func savedonk(url string, name, desc, media string, localize bool) *Donk {
127 if url == "" {
128 return nil
129 }
130 var donk Donk
131 row := stmtFindFile.QueryRow(url)
132 err := row.Scan(&donk.FileID)
133 if err == nil {
134 return &donk
135 }
136 log.Printf("saving donk: %s", url)
137 if err != nil && err != sql.ErrNoRows {
138 log.Printf("error querying: %s", err)
139 }
140 xid := xfiltrate()
141 data := []byte{}
142 if localize {
143 resp, err := http.Get(url)
144 if err != nil {
145 log.Printf("error fetching %s: %s", url, err)
146 localize = false
147 goto saveit
148 }
149 defer resp.Body.Close()
150 if resp.StatusCode != 200 {
151 localize = false
152 goto saveit
153 }
154 var buf bytes.Buffer
155 io.Copy(&buf, resp.Body)
156
157 data = buf.Bytes()
158 if strings.HasPrefix(media, "image") {
159 img, err := image.Vacuum(&buf,
160 image.Params{LimitSize: 4800 * 4800, MaxWidth: 2048, MaxHeight: 2048})
161 if err != nil {
162 log.Printf("unable to decode image: %s", err)
163 localize = false
164 data = []byte{}
165 goto saveit
166 }
167 data = img.Data
168 format := img.Format
169 media = "image/" + format
170 if format == "jpeg" {
171 format = "jpg"
172 }
173 xid = xid + "." + format
174 } else if len(data) > 100000 {
175 log.Printf("not saving large attachment")
176 localize = false
177 data = []byte{}
178 }
179 }
180saveit:
181 res, err := stmtSaveFile.Exec(xid, name, desc, url, media, localize, data)
182 if err != nil {
183 log.Printf("error saving file %s: %s", url, err)
184 return nil
185 }
186 donk.FileID, _ = res.LastInsertId()
187 return &donk
188}
189
190func iszonked(userid int64, xid string) bool {
191 row := stmtFindZonk.QueryRow(userid, xid)
192 var id int64
193 err := row.Scan(&id)
194 if err == nil {
195 return true
196 }
197 if err != sql.ErrNoRows {
198 log.Printf("err querying zonk: %s", err)
199 }
200 return false
201}
202
203func needxonk(user *WhatAbout, x *Honk) bool {
204 if x.What == "eradicate" {
205 return true
206 }
207 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
208 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
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 thoudostbitethythumb(user.ID, nil, xid) {
218 log.Printf("don't need thumb biter? %s", xid)
219 return false
220 }
221 if iszonked(user.ID, xid) {
222 log.Printf("already zonked: %s", xid)
223 return false
224 }
225 row := stmtFindXonk.QueryRow(user.ID, xid)
226 var id int64
227 err := row.Scan(&id)
228 if err == nil {
229 return false
230 }
231 if err != sql.ErrNoRows {
232 log.Printf("err querying xonk: %s", err)
233 }
234 return true
235}
236
237func savexonk(x *Honk) {
238 if x.What == "eradicate" {
239 log.Printf("eradicating %s by %s", x.XID, x.Honker)
240 xonk := getxonk(x.UserID, x.XID)
241 if xonk != nil {
242 deletehonk(xonk.ID)
243 }
244 _, err := stmtSaveZonker.Exec(x.UserID, x.XID, "zonk")
245 if err != nil {
246 log.Printf("error eradicating: %s", err)
247 }
248 return
249 }
250 log.Printf("saving xonk: %s", x.XID)
251 go prehandle(x.Honker)
252 go prehandle(x.Oonker)
253 savehonk(x)
254}
255
256type Box struct {
257 In string
258 Out string
259 Shared string
260}
261
262var boxofboxes = make(map[string]*Box)
263var boxlock sync.Mutex
264var boxinglock sync.Mutex
265
266func getboxes(ident string) (*Box, error) {
267 boxlock.Lock()
268 b, ok := boxofboxes[ident]
269 boxlock.Unlock()
270 if ok {
271 return b, nil
272 }
273
274 boxinglock.Lock()
275 defer boxinglock.Unlock()
276
277 boxlock.Lock()
278 b, ok = boxofboxes[ident]
279 boxlock.Unlock()
280 if ok {
281 return b, nil
282 }
283
284 var info string
285 row := stmtGetXonker.QueryRow(ident, "boxes")
286 err := row.Scan(&info)
287 if err != nil {
288 j, err := GetJunk(ident)
289 if err != nil {
290 return nil, err
291 }
292 inbox, _ := j.GetString("inbox")
293 outbox, _ := j.GetString("outbox")
294 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
295 b = &Box{In: inbox, Out: outbox, Shared: sbox}
296 if inbox != "" {
297 m := strings.Join([]string{inbox, outbox, sbox}, " ")
298 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
299 if err != nil {
300 log.Printf("error saving boxes: %s", err)
301 }
302 }
303 } else {
304 m := strings.Split(info, " ")
305 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
306 }
307
308 boxlock.Lock()
309 boxofboxes[ident] = b
310 boxlock.Unlock()
311 return b, nil
312}
313
314func gimmexonks(user *WhatAbout, outbox string) {
315 log.Printf("getting outbox: %s", outbox)
316 j, err := GetJunk(outbox)
317 if err != nil {
318 log.Printf("error getting outbox: %s", err)
319 return
320 }
321 t, _ := j.GetString("type")
322 origin := originate(outbox)
323 if t == "OrderedCollection" {
324 items, _ := j.GetArray("orderedItems")
325 if items == nil {
326 obj, ok := j.GetMap("first")
327 if ok {
328 items, _ = obj.GetArray("orderedItems")
329 } else {
330 page1, _ := j.GetString("first")
331 j, err = GetJunk(page1)
332 if err != nil {
333 log.Printf("error gettings page1: %s", err)
334 return
335 }
336 items, _ = j.GetArray("orderedItems")
337 }
338 }
339 if len(items) > 20 {
340 items = items[0:20]
341 }
342 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
343 items[i], items[j] = items[j], items[i]
344 }
345 for _, item := range items {
346 obj, ok := item.(junk.Junk)
347 if !ok {
348 continue
349 }
350 xonk := xonkxonk(user, obj, origin)
351 if xonk != nil {
352 savexonk(xonk)
353 }
354 }
355 }
356}
357
358func peeppeep() {
359 user, _ := butwhatabout("htest")
360 honkers := gethonkers(user.ID)
361 for _, f := range honkers {
362 if f.Flavor != "peep" {
363 continue
364 }
365 log.Printf("getting updates: %s", f.XID)
366 box, err := getboxes(f.XID)
367 if err != nil {
368 log.Printf("error getting outbox: %s", err)
369 continue
370 }
371 gimmexonks(user, box.Out)
372 }
373}
374func whosthere(xid string) ([]string, string) {
375 obj, err := GetJunk(xid)
376 if err != nil {
377 log.Printf("error getting remote xonk: %s", err)
378 return nil, ""
379 }
380 convoy, _ := obj.GetString("context")
381 if convoy == "" {
382 convoy, _ = obj.GetString("conversation")
383 }
384 return newphone(nil, obj), convoy
385}
386
387func newphone(a []string, obj junk.Junk) []string {
388 for _, addr := range []string{"to", "cc", "attributedTo"} {
389 who, _ := obj.GetString(addr)
390 if who != "" {
391 a = append(a, who)
392 }
393 whos, _ := obj.GetArray(addr)
394 for _, w := range whos {
395 who, _ := w.(string)
396 if who != "" {
397 a = append(a, who)
398 }
399 }
400 }
401 return a
402}
403
404func extractattrto(obj junk.Junk) string {
405 who, _ := obj.GetString("attributedTo")
406 if who != "" {
407 return who
408 }
409 o, ok := obj.GetMap("attributedTo")
410 if ok {
411 id, ok := o.GetString("id")
412 if ok {
413 return id
414 }
415 }
416 arr, _ := obj.GetArray("attributedTo")
417 for _, a := range arr {
418 o, ok := a.(junk.Junk)
419 if ok {
420 t, _ := o.GetString("type")
421 id, _ := o.GetString("id")
422 if t == "Person" || t == "" {
423 return id
424 }
425 }
426 }
427 return ""
428}
429
430func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
431 xonk := xonkxonk(user, j, origin)
432 if xonk != nil {
433 savexonk(xonk)
434 }
435}
436
437func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
438 depth := 0
439 maxdepth := 10
440 currenttid := ""
441 var xonkxonkfn func(item junk.Junk, origin string) *Honk
442
443 saveoneup := func(xid string) {
444 log.Printf("getting oneup: %s", xid)
445 if depth >= maxdepth {
446 log.Printf("in too deep")
447 return
448 }
449 obj, err := GetJunkHardMode(xid)
450 if err != nil {
451 log.Printf("error getting oneup: %s: %s", xid, err)
452 return
453 }
454 depth++
455 xonk := xonkxonkfn(obj, originate(xid))
456 if xonk != nil {
457 savexonk(xonk)
458 }
459 depth--
460 }
461
462 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
463 // id, _ := item.GetString( "id")
464 what, _ := item.GetString("type")
465 dt, _ := item.GetString("published")
466
467 var audience []string
468 var err error
469 var xid, rid, url, content, precis, convoy, oonker string
470 var obj junk.Junk
471 var ok bool
472 isUpdate := false
473 switch what {
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 "Delete":
506 obj, _ = item.GetMap("object")
507 xid, _ = item.GetString("object")
508 what = "eradicate"
509 case "Read":
510 xid, ok = item.GetString("object")
511 if ok {
512 if !needxonkid(user, xid) {
513 log.Printf("don't need read obj: %s", xid)
514 return nil
515 }
516 obj, err = GetJunkHardMode(xid)
517 if err != nil {
518 log.Printf("error getting read: %s", err)
519 return nil
520 }
521 return xonkxonkfn(obj, originate(xid))
522 }
523 return nil
524 case "Video":
525 fallthrough
526 case "Question":
527 fallthrough
528 case "Note":
529 fallthrough
530 case "Article":
531 fallthrough
532 case "Page":
533 obj = item
534 what = "honk"
535 default:
536 log.Printf("unknown activity: %s", what)
537 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
538 item.Write(fd)
539 io.WriteString(fd, "\n")
540 fd.Close()
541 return nil
542 }
543
544 var xonk Honk
545 who, _ := item.GetString("actor")
546 if obj != nil {
547 if who == "" {
548 who = extractattrto(obj)
549 }
550 oonker = extractattrto(obj)
551 ot, _ := obj.GetString("type")
552 url, _ = obj.GetString("url")
553 dt2, ok := obj.GetString("published")
554 if ok {
555 dt = dt2
556 }
557 if ot == "Tombstone" {
558 xid, _ = obj.GetString("id")
559 } else {
560 audience = newphone(audience, obj)
561 xid, _ = obj.GetString("id")
562 precis, _ = obj.GetString("summary")
563 if precis == "" {
564 precis, _ = obj.GetString("name")
565 }
566 content, _ = obj.GetString("content")
567 if !strings.HasPrefix(content, "<p>") {
568 content = "<p>" + content
569 }
570 sens, _ := obj["sensitive"].(bool)
571 if sens && precis == "" {
572 precis = "unspecified horror"
573 }
574 rid, ok = obj.GetString("inReplyTo")
575 if !ok {
576 robj, ok := obj.GetMap("inReplyTo")
577 if ok {
578 rid, _ = robj.GetString("id")
579 }
580 }
581 convoy, _ = obj.GetString("context")
582 if convoy == "" {
583 convoy, _ = obj.GetString("conversation")
584 }
585 if ot == "Question" {
586 if what == "honk" {
587 what = "qonk"
588 }
589 content += "<ul>"
590 ans, _ := obj.GetArray("oneOf")
591 for _, ai := range ans {
592 a, ok := ai.(junk.Junk)
593 if !ok {
594 continue
595 }
596 as, _ := a.GetString("name")
597 content += "<li>" + as
598 }
599 ans, _ = obj.GetArray("anyOf")
600 for _, ai := range ans {
601 a, ok := ai.(junk.Junk)
602 if !ok {
603 continue
604 }
605 as, _ := a.GetString("name")
606 content += "<li>" + as
607 }
608 content += "</ul>"
609 }
610 if what == "honk" && rid != "" {
611 what = "tonk"
612 }
613 }
614 atts, _ := obj.GetArray("attachment")
615 for i, atti := range atts {
616 att, ok := atti.(junk.Junk)
617 if !ok {
618 continue
619 }
620 at, _ := att.GetString("type")
621 mt, _ := att.GetString("mediaType")
622 u, _ := att.GetString("url")
623 name, _ := att.GetString("name")
624 desc, _ := att.GetString("summary")
625 if desc == "" {
626 desc = name
627 }
628 localize := false
629 if i > 4 {
630 log.Printf("excessive attachment: %s", at)
631 } else if at == "Document" || at == "Image" {
632 mt = strings.ToLower(mt)
633 log.Printf("attachment: %s %s", mt, u)
634 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
635 localize = true
636 }
637 } else {
638 log.Printf("unknown attachment: %s", at)
639 }
640 donk := savedonk(u, name, desc, mt, localize)
641 if donk != nil {
642 xonk.Donks = append(xonk.Donks, donk)
643 }
644 }
645 tags, _ := obj.GetArray("tag")
646 for _, tagi := range tags {
647 tag, ok := tagi.(junk.Junk)
648 if !ok {
649 continue
650 }
651 tt, _ := tag.GetString("type")
652 name, _ := tag.GetString("name")
653 desc, _ := tag.GetString("summary")
654 if desc == "" {
655 desc = name
656 }
657 if tt == "Emoji" {
658 icon, _ := tag.GetMap("icon")
659 mt, _ := icon.GetString("mediaType")
660 if mt == "" {
661 mt = "image/png"
662 }
663 u, _ := icon.GetString("url")
664 donk := savedonk(u, name, desc, mt, true)
665 if donk != nil {
666 xonk.Donks = append(xonk.Donks, donk)
667 }
668 }
669 if tt == "Hashtag" {
670 if len(name) > 1 && name[0] == '#' {
671 xonk.Onts = append(xonk.Onts, name)
672 } else {
673 log.Printf("bogus hashtag name: %s", name)
674 }
675 }
676 }
677 xonk.Onts = oneofakind(xonk.Onts)
678 }
679 if originate(xid) != origin {
680 log.Printf("original sin: %s <> %s", xid, origin)
681 item.Write(os.Stdout)
682 return nil
683 }
684 audience = append(audience, who)
685
686 audience = oneofakind(audience)
687
688 if currenttid == "" {
689 currenttid = convoy
690 }
691
692 if oonker == who {
693 oonker = ""
694 }
695 // init xonk
696 xonk.UserID = user.ID
697 xonk.What = what
698 xonk.Honker = who
699 xonk.XID = xid
700 xonk.RID = rid
701 xonk.Date, _ = time.Parse(time.RFC3339, dt)
702 xonk.URL = url
703 xonk.Noise = content
704 xonk.Precis = precis
705 xonk.Audience = audience
706 xonk.Oonker = oonker
707 xonk.Format = "html"
708 for _, a := range audience {
709 if a == user.URL {
710 xonk.Whofore = 1
711 }
712 }
713
714 if isUpdate {
715 log.Printf("something has changed! %s", xonk.XID)
716 prev := getxonk(user.ID, xonk.XID)
717 if prev == nil {
718 log.Printf("didn't find old version for update: %s", xonk.XID)
719 return nil
720 }
721 prev.Noise = xonk.Noise
722 prev.Precis = xonk.Precis
723 prev.Date = xonk.Date
724 prev.Donks = xonk.Donks
725 prev.Onts = xonk.Onts
726 updatehonk(prev)
727 return nil
728 }
729
730 if needxonk(user, &xonk) {
731 if rid != "" {
732 if needxonkid(user, rid) {
733 saveoneup(rid)
734 }
735 }
736 if convoy == "" {
737 convoy = currenttid
738 }
739 xonk.Convoy = convoy
740 return &xonk
741 }
742 return nil
743 }
744
745 return xonkxonkfn(item, origin)
746}
747
748func rubadubdub(user *WhatAbout, req junk.Junk) {
749 xid, _ := req.GetString("id")
750 actor, _ := req.GetString("actor")
751 j := junk.New()
752 j["@context"] = itiswhatitis
753 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
754 j["type"] = "Accept"
755 j["actor"] = user.URL
756 j["to"] = actor
757 j["published"] = time.Now().UTC().Format(time.RFC3339)
758 j["object"] = req
759
760 var buf bytes.Buffer
761 j.Write(&buf)
762 msg := buf.Bytes()
763
764 deliverate(0, user.Name, actor, msg)
765}
766
767func itakeitallback(user *WhatAbout, xid string) {
768 j := junk.New()
769 j["@context"] = itiswhatitis
770 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
771 j["type"] = "Undo"
772 j["actor"] = user.URL
773 j["to"] = xid
774 f := junk.New()
775 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
776 f["type"] = "Follow"
777 f["actor"] = user.URL
778 f["to"] = xid
779 f["object"] = xid
780 j["object"] = f
781 j["published"] = time.Now().UTC().Format(time.RFC3339)
782
783 var buf bytes.Buffer
784 j.Write(&buf)
785 msg := buf.Bytes()
786
787 deliverate(0, user.Name, xid, msg)
788}
789
790func subsub(user *WhatAbout, xid string) {
791 j := junk.New()
792 j["@context"] = itiswhatitis
793 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
794 j["type"] = "Follow"
795 j["actor"] = user.URL
796 j["to"] = xid
797 j["object"] = xid
798 j["published"] = time.Now().UTC().Format(time.RFC3339)
799
800 var buf bytes.Buffer
801 j.Write(&buf)
802 msg := buf.Bytes()
803
804 deliverate(0, user.Name, xid, msg)
805}
806
807// returns activity, object
808func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
809 dt := h.Date.Format(time.RFC3339)
810 var jo junk.Junk
811 j := junk.New()
812 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
813 j["actor"] = user.URL
814 j["published"] = dt
815 if h.Public {
816 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
817 } else {
818 j["to"] = h.Audience[0]
819 }
820 if len(h.Audience) > 1 {
821 j["cc"] = h.Audience[1:]
822 }
823
824 switch h.What {
825 case "update":
826 fallthrough
827 case "tonk":
828 fallthrough
829 case "honk":
830 if h.What == "update" {
831 j["type"] = "Update"
832 } else {
833 j["type"] = "Create"
834 }
835
836 jo = junk.New()
837 jo["id"] = h.XID
838 jo["type"] = "Note"
839 jo["published"] = dt
840 jo["url"] = h.XID
841 jo["attributedTo"] = user.URL
842 if h.RID != "" {
843 jo["inReplyTo"] = h.RID
844 }
845 if h.Convoy != "" {
846 jo["context"] = h.Convoy
847 jo["conversation"] = h.Convoy
848 }
849 jo["to"] = h.Audience[0]
850 if len(h.Audience) > 1 {
851 jo["cc"] = h.Audience[1:]
852 }
853 if !h.Public {
854 jo["directMessage"] = true
855 }
856 translate(h)
857 h.Noise = re_memes.ReplaceAllString(h.Noise, "")
858 jo["summary"] = h.Precis
859 jo["content"] = ontologize(mentionize(h.Noise))
860 if strings.HasPrefix(h.Precis, "DZ:") {
861 jo["sensitive"] = true
862 }
863
864 var replies []string
865 for _, reply := range h.Replies {
866 replies = append(replies, reply.XID)
867 }
868 if len(replies) > 0 {
869 jr := junk.New()
870 jr["type"] = "Collection"
871 jr["totalItems"] = len(replies)
872 jr["items"] = replies
873 jo["replies"] = jr
874 }
875
876 var tags []junk.Junk
877 g := bunchofgrapes(h.Noise)
878 for _, m := range g {
879 t := junk.New()
880 t["type"] = "Mention"
881 t["name"] = m.who
882 t["href"] = m.where
883 tags = append(tags, t)
884 }
885 for _, o := range h.Onts {
886 t := junk.New()
887 t["type"] = "Hashtag"
888 o = strings.ToLower(o)
889 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
890 t["name"] = o
891 tags = append(tags, t)
892 }
893 herd := herdofemus(h.Noise)
894 for _, e := range herd {
895 t := junk.New()
896 t["id"] = e.ID
897 t["type"] = "Emoji"
898 t["name"] = e.Name
899 i := junk.New()
900 i["type"] = "Image"
901 i["mediaType"] = "image/png"
902 i["url"] = e.ID
903 t["icon"] = i
904 tags = append(tags, t)
905 }
906 if len(tags) > 0 {
907 jo["tag"] = tags
908 }
909 var atts []junk.Junk
910 for _, d := range h.Donks {
911 if re_emus.MatchString(d.Name) {
912 continue
913 }
914 jd := junk.New()
915 jd["mediaType"] = d.Media
916 jd["name"] = d.Name
917 jd["summary"] = d.Desc
918 jd["type"] = "Document"
919 jd["url"] = d.URL
920 atts = append(atts, jd)
921 }
922 if len(atts) > 0 {
923 jo["attachment"] = atts
924 }
925 j["object"] = jo
926 case "bonk":
927 j["type"] = "Announce"
928 if h.Convoy != "" {
929 j["context"] = h.Convoy
930 }
931 j["object"] = h.XID
932 case "unbonk":
933 b := junk.New()
934 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
935 b["type"] = "Announce"
936 b["actor"] = user.URL
937 if h.Convoy != "" {
938 b["context"] = h.Convoy
939 }
940 b["object"] = h.XID
941 j["type"] = "Undo"
942 j["object"] = b
943 case "zonk":
944 j["type"] = "Delete"
945 j["object"] = h.XID
946 case "ack":
947 j["type"] = "Read"
948 j["object"] = h.XID
949 case "deack":
950 b := junk.New()
951 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
952 b["type"] = "Read"
953 b["actor"] = user.URL
954 b["object"] = h.XID
955 j["type"] = "Undo"
956 j["object"] = b
957 }
958
959 return j, jo
960}
961
962func honkworldwide(user *WhatAbout, honk *Honk) {
963 jonk, _ := jonkjonk(user, honk)
964 jonk["@context"] = itiswhatitis
965 var buf bytes.Buffer
966 jonk.Write(&buf)
967 msg := buf.Bytes()
968
969 rcpts := make(map[string]bool)
970 for _, a := range honk.Audience {
971 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
972 box, _ := getboxes(a)
973 if box != nil && honk.Public && box.Shared != "" {
974 rcpts["%"+box.Shared] = true
975 } else {
976 rcpts[a] = true
977 }
978 }
979 }
980 if honk.Public {
981 for _, f := range getdubs(user.ID) {
982 box, _ := getboxes(f.XID)
983 if box != nil && box.Shared != "" {
984 rcpts["%"+box.Shared] = true
985 } else {
986 rcpts[f.XID] = true
987 }
988 }
989 }
990 for a := range rcpts {
991 go deliverate(0, user.Name, a, msg)
992 }
993}
994
995func asjonker(user *WhatAbout) junk.Junk {
996 about := obfusbreak(user.About)
997
998 j := junk.New()
999 j["@context"] = itiswhatitis
1000 j["id"] = user.URL
1001 j["type"] = "Person"
1002 j["inbox"] = user.URL + "/inbox"
1003 j["outbox"] = user.URL + "/outbox"
1004 j["followers"] = user.URL + "/followers"
1005 j["following"] = user.URL + "/following"
1006 j["name"] = user.Display
1007 j["preferredUsername"] = user.Name
1008 j["summary"] = about
1009 j["url"] = user.URL
1010 a := junk.New()
1011 a["type"] = "Image"
1012 a["mediaType"] = "image/png"
1013 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1014 j["icon"] = a
1015 k := junk.New()
1016 k["id"] = user.URL + "#key"
1017 k["owner"] = user.URL
1018 k["publicKeyPem"] = user.Key
1019 j["publicKey"] = k
1020
1021 return j
1022}
1023
1024var handfull = make(map[string]string)
1025var handlock sync.Mutex
1026
1027func gofish(name string) string {
1028 if name[0] == '@' {
1029 name = name[1:]
1030 }
1031 m := strings.Split(name, "@")
1032 if len(m) != 2 {
1033 log.Printf("bad fish name: %s", name)
1034 return ""
1035 }
1036 handlock.Lock()
1037 ref, ok := handfull[name]
1038 handlock.Unlock()
1039 if ok {
1040 return ref
1041 }
1042 row := stmtGetXonker.QueryRow(name, "fishname")
1043 var href string
1044 err := row.Scan(&href)
1045 if err == nil {
1046 handlock.Lock()
1047 handfull[name] = href
1048 handlock.Unlock()
1049 return href
1050 }
1051 log.Printf("fishing for %s", name)
1052 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1053 if err != nil {
1054 log.Printf("failed to go fish %s: %s", name, err)
1055 handlock.Lock()
1056 handfull[name] = ""
1057 handlock.Unlock()
1058 return ""
1059 }
1060 links, _ := j.GetArray("links")
1061 for _, li := range links {
1062 l, ok := li.(junk.Junk)
1063 if !ok {
1064 continue
1065 }
1066 href, _ := l.GetString("href")
1067 rel, _ := l.GetString("rel")
1068 t, _ := l.GetString("type")
1069 if rel == "self" && friendorfoe(t) {
1070 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1071 if err != nil {
1072 log.Printf("error saving fishname: %s", err)
1073 }
1074 handlock.Lock()
1075 handfull[name] = href
1076 handlock.Unlock()
1077 return href
1078 }
1079 }
1080 handlock.Lock()
1081 handfull[name] = ""
1082 handlock.Unlock()
1083 return ""
1084}
1085
1086func isactor(t string) bool {
1087 switch t {
1088 case "Person":
1089 case "Organization":
1090 case "Application":
1091 case "Service":
1092 default:
1093 return false
1094 }
1095 return true
1096}
1097
1098func investigate(name string) (*Honker, error) {
1099 if name == "" {
1100 return nil, fmt.Errorf("no name")
1101 }
1102 if name[0] == '@' {
1103 name = gofish(name)
1104 }
1105 if name == "" {
1106 return nil, fmt.Errorf("no name")
1107 }
1108 log.Printf("digging up some info on %s", name)
1109 obj, err := GetJunkFast(name)
1110 if err != nil {
1111 log.Printf("error investigating honker: %s", err)
1112 return nil, err
1113 }
1114 t, _ := obj.GetString("type")
1115 if !isactor(t) {
1116 log.Printf("it's not a person! %s", name)
1117 return nil, err
1118 }
1119 xid, _ := obj.GetString("id")
1120 handle, _ := obj.GetString("preferredUsername")
1121 return &Honker{XID: xid, Handle: handle}, nil
1122}