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, 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 media = "image/" + img.Format
169 } else if len(data) > 100000 {
170 log.Printf("not saving large attachment")
171 localize = false
172 data = []byte{}
173 }
174 }
175saveit:
176 res, err := stmtSaveFile.Exec(xid, name, url, media, localize, data)
177 if err != nil {
178 log.Printf("error saving file %s: %s", url, err)
179 return nil
180 }
181 donk.FileID, _ = res.LastInsertId()
182 return &donk
183}
184
185func iszonked(userid int64, xid string) bool {
186 row := stmtFindZonk.QueryRow(userid, xid)
187 var id int64
188 err := row.Scan(&id)
189 if err == nil {
190 return true
191 }
192 if err != sql.ErrNoRows {
193 log.Printf("err querying zonk: %s", err)
194 }
195 return false
196}
197
198func needxonk(user *WhatAbout, x *Honk) bool {
199 if x.What == "eradicate" {
200 return true
201 }
202 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
203 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
204 return false
205 }
206 return needxonkid(user, x.XID)
207}
208func needxonkid(user *WhatAbout, xid string) bool {
209 if strings.HasPrefix(xid, user.URL+"/") {
210 return false
211 }
212 if thoudostbitethythumb(user.ID, nil, xid) {
213 log.Printf("don't need thumb biter? %s", xid)
214 return false
215 }
216 if iszonked(user.ID, xid) {
217 log.Printf("already zonked: %s", xid)
218 return false
219 }
220 row := stmtFindXonk.QueryRow(user.ID, xid)
221 var id int64
222 err := row.Scan(&id)
223 if err == nil {
224 return false
225 }
226 if err != sql.ErrNoRows {
227 log.Printf("err querying xonk: %s", err)
228 }
229 return true
230}
231
232func savexonk(user *WhatAbout, x *Honk) {
233 if x.What == "eradicate" {
234 log.Printf("eradicating %s by %s", x.XID, x.Honker)
235 xonk := getxonk(user.ID, x.XID)
236 if xonk != nil {
237 _, err := stmtZonkDonks.Exec(xonk.ID)
238 if err != nil {
239 log.Printf("error eradicating: %s", err)
240 }
241 _, err = stmtZonkIt.Exec(xonk.ID)
242 if err != nil {
243 log.Printf("error eradicating: %s", err)
244 }
245 }
246 _, err := stmtSaveZonker.Exec(user.ID, x.XID, "zonk")
247 if err != nil {
248 log.Printf("error eradicating: %s", err)
249 }
250 return
251 }
252 log.Printf("saving xonk: %s", x.XID)
253 dt := x.Date.UTC().Format(dbtimeformat)
254 aud := strings.Join(x.Audience, " ")
255 whofore := 0
256 if strings.Contains(aud, user.URL) {
257 whofore = 1
258 }
259 go prehandle(x.Honker)
260 go prehandle(x.Oonker)
261 res, err := stmtSaveHonk.Exec(x.UserID, x.What, x.Honker, x.XID, x.RID, dt, x.URL, aud,
262 x.Noise, x.Convoy, whofore, "html", x.Precis, x.Oonker, 0, strings.Join(x.Onts, " "))
263 if err != nil {
264 log.Printf("err saving xonk: %s", err)
265 return
266 }
267 x.ID, _ = res.LastInsertId()
268 for _, d := range x.Donks {
269 _, err = stmtSaveDonk.Exec(x.ID, d.FileID)
270 if err != nil {
271 log.Printf("err saving donk: %s", err)
272 return
273 }
274 }
275 for _, o := range x.Onts {
276 _, err = stmtSaveOnts.Exec(strings.ToLower(o), x.ID)
277 if err != nil {
278 log.Printf("error saving ont: %s", err)
279 }
280 }
281
282}
283
284type Box struct {
285 In string
286 Out string
287 Shared string
288}
289
290var boxofboxes = make(map[string]*Box)
291var boxlock sync.Mutex
292var boxinglock sync.Mutex
293
294func getboxes(ident string) (*Box, error) {
295 boxlock.Lock()
296 b, ok := boxofboxes[ident]
297 boxlock.Unlock()
298 if ok {
299 return b, nil
300 }
301
302 boxinglock.Lock()
303 defer boxinglock.Unlock()
304
305 boxlock.Lock()
306 b, ok = boxofboxes[ident]
307 boxlock.Unlock()
308 if ok {
309 return b, nil
310 }
311
312 var info string
313 row := stmtGetXonker.QueryRow(ident, "boxes")
314 err := row.Scan(&info)
315 if err != nil {
316 j, err := GetJunk(ident)
317 if err != nil {
318 return nil, err
319 }
320 inbox, _ := j.GetString("inbox")
321 outbox, _ := j.GetString("outbox")
322 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
323 b = &Box{In: inbox, Out: outbox, Shared: sbox}
324 if inbox != "" {
325 m := strings.Join([]string{inbox, outbox, sbox}, " ")
326 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
327 if err != nil {
328 log.Printf("error saving boxes: %s", err)
329 }
330 }
331 } else {
332 m := strings.Split(info, " ")
333 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
334 }
335
336 boxlock.Lock()
337 boxofboxes[ident] = b
338 boxlock.Unlock()
339 return b, nil
340}
341
342func gimmexonks(user *WhatAbout, outbox string) {
343 log.Printf("getting outbox: %s", outbox)
344 j, err := GetJunk(outbox)
345 if err != nil {
346 log.Printf("error getting outbox: %s", err)
347 return
348 }
349 t, _ := j.GetString("type")
350 origin := originate(outbox)
351 if t == "OrderedCollection" {
352 items, _ := j.GetArray("orderedItems")
353 if items == nil {
354 obj, ok := j.GetMap("first")
355 if ok {
356 items, _ = obj.GetArray("orderedItems")
357 } else {
358 page1, _ := j.GetString("first")
359 j, err = GetJunk(page1)
360 if err != nil {
361 log.Printf("error gettings page1: %s", err)
362 return
363 }
364 items, _ = j.GetArray("orderedItems")
365 }
366 }
367 if len(items) > 20 {
368 items = items[0:20]
369 }
370 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
371 items[i], items[j] = items[j], items[i]
372 }
373 for _, item := range items {
374 obj, ok := item.(junk.Junk)
375 if !ok {
376 continue
377 }
378 xonk := xonkxonk(user, obj, origin)
379 if xonk != nil {
380 savexonk(user, xonk)
381 }
382 }
383 }
384}
385
386func peeppeep() {
387 user, _ := butwhatabout("htest")
388 honkers := gethonkers(user.ID)
389 for _, f := range honkers {
390 if f.Flavor != "peep" {
391 continue
392 }
393 log.Printf("getting updates: %s", f.XID)
394 box, err := getboxes(f.XID)
395 if err != nil {
396 log.Printf("error getting outbox: %s", err)
397 continue
398 }
399 gimmexonks(user, box.Out)
400 }
401}
402func whosthere(xid string) ([]string, string) {
403 obj, err := GetJunk(xid)
404 if err != nil {
405 log.Printf("error getting remote xonk: %s", err)
406 return nil, ""
407 }
408 convoy, _ := obj.GetString("context")
409 if convoy == "" {
410 convoy, _ = obj.GetString("conversation")
411 }
412 return newphone(nil, obj), convoy
413}
414
415func newphone(a []string, obj junk.Junk) []string {
416 for _, addr := range []string{"to", "cc", "attributedTo"} {
417 who, _ := obj.GetString(addr)
418 if who != "" {
419 a = append(a, who)
420 }
421 whos, _ := obj.GetArray(addr)
422 for _, w := range whos {
423 who, _ := w.(string)
424 if who != "" {
425 a = append(a, who)
426 }
427 }
428 }
429 return a
430}
431
432func extractattrto(obj junk.Junk) string {
433 who, _ := obj.GetString("attributedTo")
434 if who != "" {
435 return who
436 }
437 o, ok := obj.GetMap("attributedTo")
438 if ok {
439 id, ok := o.GetString("id")
440 if ok {
441 return id
442 }
443 }
444 arr, _ := obj.GetArray("attributedTo")
445 for _, a := range arr {
446 o, ok := a.(junk.Junk)
447 if ok {
448 t, _ := o.GetString("type")
449 id, _ := o.GetString("id")
450 if t == "Person" || t == "" {
451 return id
452 }
453 }
454 }
455 return ""
456}
457
458func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
459 xonk := xonkxonk(user, j, origin)
460 if xonk != nil {
461 savexonk(user, xonk)
462 }
463}
464
465func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
466 depth := 0
467 maxdepth := 10
468 currenttid := ""
469 var xonkxonkfn func(item junk.Junk, origin string) *Honk
470
471 saveoneup := func(xid string) {
472 log.Printf("getting oneup: %s", xid)
473 if depth >= maxdepth {
474 log.Printf("in too deep")
475 return
476 }
477 obj, err := GetJunkHardMode(xid)
478 if err != nil {
479 log.Printf("error getting oneup: %s: %s", xid, err)
480 return
481 }
482 depth++
483 xonk := xonkxonkfn(obj, originate(xid))
484 if xonk != nil {
485 savexonk(user, xonk)
486 }
487 depth--
488 }
489
490 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
491 // id, _ := item.GetString( "id")
492 what, _ := item.GetString("type")
493 dt, _ := item.GetString("published")
494
495 var audience []string
496 var err error
497 var xid, rid, url, content, precis, convoy, oonker string
498 var obj junk.Junk
499 var ok bool
500 switch what {
501 case "Announce":
502 obj, ok = item.GetMap("object")
503 if ok {
504 xid, _ = obj.GetString("id")
505 } else {
506 xid, _ = item.GetString("object")
507 }
508 if !needxonkid(user, xid) {
509 return nil
510 }
511 log.Printf("getting bonk: %s", xid)
512 obj, err = GetJunkHardMode(xid)
513 if err != nil {
514 log.Printf("error getting bonk: %s: %s", xid, err)
515 }
516 origin = originate(xid)
517 what = "bonk"
518 case "Create":
519 obj, ok = item.GetMap("object")
520 if !ok {
521 xid, _ = obj.GetString("object")
522 log.Printf("getting created honk: %s", xid)
523 obj, err = GetJunkHardMode(xid)
524 if err != nil {
525 log.Printf("error getting creation: %s", err)
526 }
527 }
528 what = "honk"
529 case "Delete":
530 obj, _ = item.GetMap("object")
531 xid, _ = item.GetString("object")
532 what = "eradicate"
533 case "Read":
534 xid, ok = item.GetString("object")
535 if ok {
536 if !needxonkid(user, xid) {
537 log.Printf("don't need read obj: %s", xid)
538 return nil
539 }
540 obj, err = GetJunkHardMode(xid)
541 if err != nil {
542 log.Printf("error getting read: %s", err)
543 return nil
544 }
545 return xonkxonkfn(obj, originate(xid))
546 }
547 return nil
548 case "Video":
549 fallthrough
550 case "Question":
551 fallthrough
552 case "Note":
553 fallthrough
554 case "Article":
555 fallthrough
556 case "Page":
557 obj = item
558 what = "honk"
559 default:
560 log.Printf("unknown activity: %s", what)
561 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
562 item.Write(fd)
563 io.WriteString(fd, "\n")
564 fd.Close()
565 return nil
566 }
567
568 var xonk Honk
569 who, _ := item.GetString("actor")
570 if obj != nil {
571 if who == "" {
572 who = extractattrto(obj)
573 }
574 oonker = extractattrto(obj)
575 ot, _ := obj.GetString("type")
576 url, _ = obj.GetString("url")
577 if ot == "Tombstone" {
578 xid, _ = obj.GetString("id")
579 } else {
580 audience = newphone(audience, obj)
581 xid, _ = obj.GetString("id")
582 precis, _ = obj.GetString("summary")
583 if precis == "" {
584 precis, _ = obj.GetString("name")
585 }
586 content, _ = obj.GetString("content")
587 if !strings.HasPrefix(content, "<p>") {
588 content = "<p>" + content
589 }
590 sens, _ := obj["sensitive"].(bool)
591 if sens && precis == "" {
592 precis = "unspecified horror"
593 }
594 rid, ok = obj.GetString("inReplyTo")
595 if !ok {
596 robj, ok := obj.GetMap("inReplyTo")
597 if ok {
598 rid, _ = robj.GetString("id")
599 }
600 }
601 convoy, _ = obj.GetString("context")
602 if convoy == "" {
603 convoy, _ = obj.GetString("conversation")
604 }
605 if ot == "Question" {
606 if what == "honk" {
607 what = "qonk"
608 }
609 content += "<ul>"
610 ans, _ := obj.GetArray("oneOf")
611 for _, ai := range ans {
612 a, ok := ai.(junk.Junk)
613 if !ok {
614 continue
615 }
616 as, _ := a.GetString("name")
617 content += "<li>" + as
618 }
619 ans, _ = obj.GetArray("anyOf")
620 for _, ai := range ans {
621 a, ok := ai.(junk.Junk)
622 if !ok {
623 continue
624 }
625 as, _ := a.GetString("name")
626 content += "<li>" + as
627 }
628 content += "</ul>"
629 }
630 if what == "honk" && rid != "" {
631 what = "tonk"
632 }
633 }
634 atts, _ := obj.GetArray("attachment")
635 for i, atti := range atts {
636 att, ok := atti.(junk.Junk)
637 if !ok {
638 continue
639 }
640 at, _ := att.GetString("type")
641 mt, _ := att.GetString("mediaType")
642 u, _ := att.GetString("url")
643 name, _ := att.GetString("name")
644 localize := false
645 if i > 4 {
646 log.Printf("excessive attachment: %s", at)
647 } else if at == "Document" || at == "Image" {
648 mt = strings.ToLower(mt)
649 log.Printf("attachment: %s %s", mt, u)
650 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
651 localize = true
652 }
653 } else {
654 log.Printf("unknown attachment: %s", at)
655 }
656 donk := savedonk(u, name, mt, localize)
657 if donk != nil {
658 xonk.Donks = append(xonk.Donks, donk)
659 }
660 }
661 tags, _ := obj.GetArray("tag")
662 for _, tagi := range tags {
663 tag, ok := tagi.(junk.Junk)
664 if !ok {
665 continue
666 }
667 tt, _ := tag.GetString("type")
668 name, _ := tag.GetString("name")
669 if tt == "Emoji" {
670 icon, _ := tag.GetMap("icon")
671 mt, _ := icon.GetString("mediaType")
672 if mt == "" {
673 mt = "image/png"
674 }
675 u, _ := icon.GetString("url")
676 donk := savedonk(u, name, mt, true)
677 if donk != nil {
678 xonk.Donks = append(xonk.Donks, donk)
679 }
680 }
681 if tt == "Hashtag" {
682 xonk.Onts = append(xonk.Onts, name)
683 }
684 }
685 xonk.Onts = oneofakind(xonk.Onts)
686 }
687 if originate(xid) != origin {
688 log.Printf("original sin: %s <> %s", xid, origin)
689 item.Write(os.Stdout)
690 return nil
691 }
692 audience = append(audience, who)
693
694 audience = oneofakind(audience)
695
696 if currenttid == "" {
697 currenttid = convoy
698 }
699
700 if oonker == who {
701 oonker = ""
702 }
703 xonk.UserID = user.ID
704 xonk.What = what
705 xonk.Honker = who
706 xonk.XID = xid
707 xonk.RID = rid
708 xonk.Date, _ = time.Parse(time.RFC3339, dt)
709 xonk.URL = url
710 xonk.Noise = content
711 xonk.Precis = precis
712 xonk.Audience = audience
713 xonk.Oonker = oonker
714
715 if needxonk(user, &xonk) {
716 if rid != "" {
717 if needxonkid(user, rid) {
718 saveoneup(rid)
719 }
720 }
721 if convoy == "" {
722 convoy = currenttid
723 }
724 xonk.Convoy = convoy
725 return &xonk
726 }
727 return nil
728 }
729
730 return xonkxonkfn(item, origin)
731}
732
733func rubadubdub(user *WhatAbout, req junk.Junk) {
734 xid, _ := req.GetString("id")
735 actor, _ := req.GetString("actor")
736 j := junk.New()
737 j["@context"] = itiswhatitis
738 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
739 j["type"] = "Accept"
740 j["actor"] = user.URL
741 j["to"] = actor
742 j["published"] = time.Now().UTC().Format(time.RFC3339)
743 j["object"] = req
744
745 var buf bytes.Buffer
746 j.Write(&buf)
747 msg := buf.Bytes()
748
749 deliverate(0, user.Name, actor, msg)
750}
751
752func itakeitallback(user *WhatAbout, xid string) {
753 j := junk.New()
754 j["@context"] = itiswhatitis
755 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
756 j["type"] = "Undo"
757 j["actor"] = user.URL
758 j["to"] = xid
759 f := junk.New()
760 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
761 f["type"] = "Follow"
762 f["actor"] = user.URL
763 f["to"] = xid
764 f["object"] = xid
765 j["object"] = f
766 j["published"] = time.Now().UTC().Format(time.RFC3339)
767
768 var buf bytes.Buffer
769 j.Write(&buf)
770 msg := buf.Bytes()
771
772 deliverate(0, user.Name, xid, msg)
773}
774
775func subsub(user *WhatAbout, xid string) {
776 j := junk.New()
777 j["@context"] = itiswhatitis
778 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
779 j["type"] = "Follow"
780 j["actor"] = user.URL
781 j["to"] = xid
782 j["object"] = xid
783 j["published"] = time.Now().UTC().Format(time.RFC3339)
784
785 var buf bytes.Buffer
786 j.Write(&buf)
787 msg := buf.Bytes()
788
789 deliverate(0, user.Name, xid, msg)
790}
791
792func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
793 dt := h.Date.Format(time.RFC3339)
794 var jo junk.Junk
795 j := junk.New()
796 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
797 j["actor"] = user.URL
798 j["published"] = dt
799 if h.Public {
800 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
801 } else {
802 j["to"] = h.Audience[0]
803 }
804 if len(h.Audience) > 1 {
805 j["cc"] = h.Audience[1:]
806 }
807
808 switch h.What {
809 case "tonk":
810 fallthrough
811 case "honk":
812 j["type"] = "Create"
813
814 jo = junk.New()
815 jo["id"] = h.XID
816 jo["type"] = "Note"
817 jo["published"] = dt
818 jo["url"] = h.XID
819 jo["attributedTo"] = user.URL
820 if h.RID != "" {
821 jo["inReplyTo"] = h.RID
822 }
823 if h.Convoy != "" {
824 jo["context"] = h.Convoy
825 jo["conversation"] = h.Convoy
826 }
827 jo["to"] = h.Audience[0]
828 if len(h.Audience) > 1 {
829 jo["cc"] = h.Audience[1:]
830 }
831 if !h.Public {
832 jo["directMessage"] = true
833 }
834 jo["summary"] = h.Precis
835 jo["content"] = ontologize(mentionize(h.Noise))
836 if strings.HasPrefix(h.Precis, "DZ:") {
837 jo["sensitive"] = true
838 }
839
840 var replies []string
841 for _, reply := range h.Replies {
842 replies = append(replies, reply.XID)
843 }
844 if len(replies) > 0 {
845 jr := junk.New()
846 jr["type"] = "Collection"
847 jr["totalItems"] = len(replies)
848 jr["items"] = replies
849 jo["replies"] = jr
850 }
851
852 var tags []junk.Junk
853 g := bunchofgrapes(h.Noise)
854 for _, m := range g {
855 t := junk.New()
856 t["type"] = "Mention"
857 t["name"] = m.who
858 t["href"] = m.where
859 tags = append(tags, t)
860 }
861 for _, o := range h.Onts {
862 t := junk.New()
863 t["type"] = "Hashtag"
864 o = strings.ToLower(o)
865 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
866 t["name"] = o
867 tags = append(tags, t)
868 }
869 herd := herdofemus(h.Noise)
870 for _, e := range herd {
871 t := junk.New()
872 t["id"] = e.ID
873 t["type"] = "Emoji"
874 t["name"] = e.Name
875 i := junk.New()
876 i["type"] = "Image"
877 i["mediaType"] = "image/png"
878 i["url"] = e.ID
879 t["icon"] = i
880 tags = append(tags, t)
881 }
882 if len(tags) > 0 {
883 jo["tag"] = tags
884 }
885 var atts []junk.Junk
886 for _, d := range h.Donks {
887 if re_emus.MatchString(d.Name) {
888 continue
889 }
890 jd := junk.New()
891 jd["mediaType"] = d.Media
892 jd["name"] = d.Name
893 jd["type"] = "Document"
894 jd["url"] = d.URL
895 atts = append(atts, jd)
896 }
897 if len(atts) > 0 {
898 jo["attachment"] = atts
899 }
900 j["object"] = jo
901 case "bonk":
902 j["type"] = "Announce"
903 if h.Convoy != "" {
904 j["context"] = h.Convoy
905 }
906 j["object"] = h.XID
907 case "unbonk":
908 b := junk.New()
909 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
910 b["type"] = "Announce"
911 if h.Convoy != "" {
912 b["context"] = h.Convoy
913 }
914 b["object"] = h.XID
915 j["type"] = "Undo"
916 j["object"] = b
917 case "zonk":
918 j["type"] = "Delete"
919 j["object"] = h.XID
920 case "ack":
921 j["type"] = "Read"
922 j["object"] = h.XID
923 case "deack":
924 j["type"] = "Ignore"
925 j["object"] = h.XID
926 }
927
928 return j, jo
929}
930
931func honkworldwide(user *WhatAbout, honk *Honk) {
932 jonk, _ := jonkjonk(user, honk)
933 jonk["@context"] = itiswhatitis
934 var buf bytes.Buffer
935 jonk.Write(&buf)
936 msg := buf.Bytes()
937
938 rcpts := make(map[string]bool)
939 for _, a := range honk.Audience {
940 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
941 box, _ := getboxes(a)
942 if box != nil && honk.Public && box.Shared != "" {
943 rcpts["%"+box.Shared] = true
944 } else {
945 rcpts[a] = true
946 }
947 }
948 }
949 if honk.Public {
950 for _, f := range getdubs(user.ID) {
951 box, _ := getboxes(f.XID)
952 if box != nil && box.Shared != "" {
953 rcpts["%"+box.Shared] = true
954 } else {
955 rcpts[f.XID] = true
956 }
957 }
958 }
959 for a := range rcpts {
960 go deliverate(0, user.Name, a, msg)
961 }
962}
963
964func asjonker(user *WhatAbout) junk.Junk {
965 about := obfusbreak(user.About)
966
967 j := junk.New()
968 j["@context"] = itiswhatitis
969 j["id"] = user.URL
970 j["type"] = "Person"
971 j["inbox"] = user.URL + "/inbox"
972 j["outbox"] = user.URL + "/outbox"
973 j["followers"] = user.URL + "/followers"
974 j["following"] = user.URL + "/following"
975 j["name"] = user.Display
976 j["preferredUsername"] = user.Name
977 j["summary"] = about
978 j["url"] = user.URL
979 a := junk.New()
980 a["type"] = "Image"
981 a["mediaType"] = "image/png"
982 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
983 j["icon"] = a
984 k := junk.New()
985 k["id"] = user.URL + "#key"
986 k["owner"] = user.URL
987 k["publicKeyPem"] = user.Key
988 j["publicKey"] = k
989
990 return j
991}
992
993var handfull = make(map[string]string)
994var handlock sync.Mutex
995
996func gofish(name string) string {
997 if name[0] == '@' {
998 name = name[1:]
999 }
1000 m := strings.Split(name, "@")
1001 if len(m) != 2 {
1002 log.Printf("bad fish name: %s", name)
1003 return ""
1004 }
1005 handlock.Lock()
1006 ref, ok := handfull[name]
1007 handlock.Unlock()
1008 if ok {
1009 return ref
1010 }
1011 row := stmtGetXonker.QueryRow(name, "fishname")
1012 var href string
1013 err := row.Scan(&href)
1014 if err == nil {
1015 handlock.Lock()
1016 handfull[name] = href
1017 handlock.Unlock()
1018 return href
1019 }
1020 log.Printf("fishing for %s", name)
1021 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1022 if err != nil {
1023 log.Printf("failed to go fish %s: %s", name, err)
1024 handlock.Lock()
1025 handfull[name] = ""
1026 handlock.Unlock()
1027 return ""
1028 }
1029 links, _ := j.GetArray("links")
1030 for _, li := range links {
1031 l, ok := li.(junk.Junk)
1032 if !ok {
1033 continue
1034 }
1035 href, _ := l.GetString("href")
1036 rel, _ := l.GetString("rel")
1037 t, _ := l.GetString("type")
1038 if rel == "self" && friendorfoe(t) {
1039 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1040 if err != nil {
1041 log.Printf("error saving fishname: %s", err)
1042 }
1043 handlock.Lock()
1044 handfull[name] = href
1045 handlock.Unlock()
1046 return href
1047 }
1048 }
1049 handlock.Lock()
1050 handfull[name] = ""
1051 handlock.Unlock()
1052 return ""
1053}
1054
1055func isactor(t string) bool {
1056 switch t {
1057 case "Person":
1058 case "Organization":
1059 case "Application":
1060 case "Service":
1061 default:
1062 return false
1063 }
1064 return true
1065}
1066
1067func investigate(name string) (*Honker, error) {
1068 if name == "" {
1069 return nil, fmt.Errorf("no name")
1070 }
1071 if name[0] == '@' {
1072 name = gofish(name)
1073 }
1074 if name == "" {
1075 return nil, fmt.Errorf("no name")
1076 }
1077 log.Printf("digging up some info on %s", name)
1078 obj, err := GetJunkFast(name)
1079 if err != nil {
1080 log.Printf("error investigating honker: %s", err)
1081 return nil, err
1082 }
1083 t, _ := obj.GetString("type")
1084 if !isactor(t) {
1085 log.Printf("it's not a person! %s", name)
1086 return nil, err
1087 }
1088 xid, _ := obj.GetString("id")
1089 handle, _ := obj.GetString("preferredUsername")
1090 return &Honker{XID: xid, Handle: handle}, nil
1091}