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, 0)
90}
91
92func GetJunkFast(url string) (junk.Junk, error) {
93 return GetJunkTimeout(url, 5*time.Second)
94}
95
96func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
97 at := thefakename
98 if strings.Contains(url, ".well-known/webfinger?resource") {
99 at = "application/jrd+json"
100 }
101 return junk.Get(url, junk.GetArgs{
102 Accept: at,
103 Agent: "honksnonk/5.0; " + serverName,
104 Timeout: timeout,
105 })
106}
107
108func savedonk(url string, name, media string, localize bool) *Donk {
109 if url == "" {
110 return nil
111 }
112 var donk Donk
113 row := stmtFindFile.QueryRow(url)
114 err := row.Scan(&donk.FileID)
115 if err == nil {
116 return &donk
117 }
118 log.Printf("saving donk: %s", url)
119 if err != nil && err != sql.ErrNoRows {
120 log.Printf("error querying: %s", err)
121 }
122 xid := xfiltrate()
123 data := []byte{}
124 if localize {
125 resp, err := http.Get(url)
126 if err != nil {
127 log.Printf("error fetching %s: %s", url, err)
128 localize = false
129 goto saveit
130 }
131 defer resp.Body.Close()
132 if resp.StatusCode != 200 {
133 localize = false
134 goto saveit
135 }
136 var buf bytes.Buffer
137 io.Copy(&buf, resp.Body)
138
139 data = buf.Bytes()
140 if strings.HasPrefix(media, "image") {
141 img, err := image.Vacuum(&buf,
142 image.Params{LimitSize: 4800 * 4800, MaxWidth: 2048, MaxHeight: 2048})
143 if err != nil {
144 log.Printf("unable to decode image: %s", err)
145 localize = false
146 data = []byte{}
147 goto saveit
148 }
149 data = img.Data
150 media = "image/" + img.Format
151 } else if len(data) > 100000 {
152 log.Printf("not saving large attachment")
153 localize = false
154 data = []byte{}
155 }
156 }
157saveit:
158 res, err := stmtSaveFile.Exec(xid, name, url, media, localize, data)
159 if err != nil {
160 log.Printf("error saving file %s: %s", url, err)
161 return nil
162 }
163 donk.FileID, _ = res.LastInsertId()
164 return &donk
165}
166
167func iszonked(userid int64, xid string) bool {
168 row := stmtFindZonk.QueryRow(userid, xid)
169 var id int64
170 err := row.Scan(&id)
171 if err == nil {
172 return true
173 }
174 if err != sql.ErrNoRows {
175 log.Printf("err querying zonk: %s", err)
176 }
177 return false
178}
179
180func needxonk(user *WhatAbout, x *Honk) bool {
181 if x.What == "eradicate" {
182 return true
183 }
184 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
185 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
186 return false
187 }
188 return needxonkid(user, x.XID)
189}
190func needxonkid(user *WhatAbout, xid string) bool {
191 if strings.HasPrefix(xid, user.URL+"/") {
192 return false
193 }
194 if iszonked(user.ID, xid) {
195 log.Printf("already zonked: %s", xid)
196 return false
197 }
198 row := stmtFindXonk.QueryRow(user.ID, xid)
199 var id int64
200 err := row.Scan(&id)
201 if err == nil {
202 return false
203 }
204 if err != sql.ErrNoRows {
205 log.Printf("err querying xonk: %s", err)
206 }
207 return true
208}
209
210func savexonk(user *WhatAbout, x *Honk) {
211 if x.What == "eradicate" {
212 log.Printf("eradicating %s by %s", x.XID, x.Honker)
213 xonk := getxonk(user.ID, x.XID)
214 if xonk != nil {
215 stmtZonkDonks.Exec(xonk.ID)
216 _, err := stmtZonkIt.Exec(user.ID, x.XID)
217 if err != nil {
218 log.Printf("error eradicating: %s", err)
219 }
220 }
221 stmtSaveZonker.Exec(user.ID, x.XID, "zonk")
222 return
223 }
224 log.Printf("saving xonk: %s", x.XID)
225 dt := x.Date.UTC().Format(dbtimeformat)
226 aud := strings.Join(x.Audience, " ")
227 whofore := 0
228 if strings.Contains(aud, user.URL) {
229 whofore = 1
230 }
231 res, err := stmtSaveHonk.Exec(x.UserID, x.What, x.Honker, x.XID, x.RID, dt, x.URL, aud,
232 x.Noise, x.Convoy, whofore, "html", x.Precis, x.Oonker)
233 if err != nil {
234 log.Printf("err saving xonk: %s", err)
235 return
236 }
237 x.ID, _ = res.LastInsertId()
238 for _, d := range x.Donks {
239 _, err = stmtSaveDonk.Exec(x.ID, d.FileID)
240 if err != nil {
241 log.Printf("err saving donk: %s", err)
242 return
243 }
244 }
245}
246
247type Box struct {
248 In string
249 Out string
250 Shared string
251}
252
253var boxofboxes = make(map[string]*Box)
254var boxlock sync.Mutex
255var boxinglock sync.Mutex
256
257func getboxes(ident string) (*Box, error) {
258 boxlock.Lock()
259 b, ok := boxofboxes[ident]
260 boxlock.Unlock()
261 if ok {
262 return b, nil
263 }
264
265 boxinglock.Lock()
266 defer boxinglock.Unlock()
267
268 boxlock.Lock()
269 b, ok = boxofboxes[ident]
270 boxlock.Unlock()
271 if ok {
272 return b, nil
273 }
274
275 var info string
276 row := stmtGetXonker.QueryRow(ident, "boxes")
277 err := row.Scan(&info)
278 if err != nil {
279 j, err := GetJunk(ident)
280 if err != nil {
281 return nil, err
282 }
283 inbox, _ := j.GetString("inbox")
284 outbox, _ := j.GetString("outbox")
285 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
286 b = &Box{In: inbox, Out: outbox, Shared: sbox}
287 if inbox != "" {
288 m := strings.Join([]string{inbox, outbox, sbox}, " ")
289 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
290 if err != nil {
291 log.Printf("error saving boxes: %s", err)
292 }
293 }
294 } else {
295 m := strings.Split(info, " ")
296 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
297 }
298
299 boxlock.Lock()
300 boxofboxes[ident] = b
301 boxlock.Unlock()
302 return b, nil
303}
304
305func gimmexonks(user *WhatAbout, outbox string) {
306 log.Printf("getting outbox: %s", outbox)
307 j, err := GetJunk(outbox)
308 if err != nil {
309 log.Printf("error getting outbox: %s", err)
310 return
311 }
312 t, _ := j.GetString("type")
313 origin := originate(outbox)
314 if t == "OrderedCollection" {
315 items, _ := j.GetArray("orderedItems")
316 if items == nil {
317 obj, ok := j.GetMap("first")
318 if ok {
319 items, _ = obj.GetArray("orderedItems")
320 } else {
321 page1, _ := j.GetString("first")
322 j, err = GetJunk(page1)
323 if err != nil {
324 log.Printf("error gettings page1: %s", err)
325 return
326 }
327 items, _ = j.GetArray("orderedItems")
328 }
329 }
330 if len(items) > 20 {
331 items = items[0:20]
332 }
333 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
334 items[i], items[j] = items[j], items[i]
335 }
336 for _, item := range items {
337 obj, ok := item.(junk.Junk)
338 if !ok {
339 continue
340 }
341 xonk := xonkxonk(user, obj, origin)
342 if xonk != nil {
343 savexonk(user, xonk)
344 }
345 }
346 }
347}
348
349func peeppeep() {
350 user, _ := butwhatabout("htest")
351 honkers := gethonkers(user.ID)
352 for _, f := range honkers {
353 if f.Flavor != "peep" {
354 continue
355 }
356 log.Printf("getting updates: %s", f.XID)
357 box, err := getboxes(f.XID)
358 if err != nil {
359 log.Printf("error getting outbox: %s", err)
360 continue
361 }
362 gimmexonks(user, box.Out)
363 }
364}
365func whosthere(xid string) ([]string, string) {
366 obj, err := GetJunk(xid)
367 if err != nil {
368 log.Printf("error getting remote xonk: %s", err)
369 return nil, ""
370 }
371 convoy, _ := obj.GetString("context")
372 if convoy == "" {
373 convoy, _ = obj.GetString("conversation")
374 }
375 return newphone(nil, obj), convoy
376}
377
378func newphone(a []string, obj junk.Junk) []string {
379 for _, addr := range []string{"to", "cc", "attributedTo"} {
380 who, _ := obj.GetString(addr)
381 if who != "" {
382 a = append(a, who)
383 }
384 whos, _ := obj.GetArray(addr)
385 for _, w := range whos {
386 who, _ := w.(string)
387 if who != "" {
388 a = append(a, who)
389 }
390 }
391 }
392 return a
393}
394
395func extractattrto(obj junk.Junk) string {
396 who, _ := obj.GetString("attributedTo")
397 if who != "" {
398 return who
399 }
400 o, ok := obj.GetMap("attributedTo")
401 if ok {
402 id, ok := o.GetString("id")
403 if ok {
404 return id
405 }
406 }
407 arr, _ := obj.GetArray("attributedTo")
408 for _, a := range arr {
409 o, ok := a.(junk.Junk)
410 if ok {
411 t, _ := o.GetString("type")
412 id, _ := o.GetString("id")
413 if t == "Person" || t == "" {
414 return id
415 }
416 }
417 }
418 return ""
419}
420
421func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
422 xonk := xonkxonk(user, j, origin)
423 if xonk != nil {
424 savexonk(user, xonk)
425 }
426}
427
428func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
429 depth := 0
430 maxdepth := 10
431 currenttid := ""
432 var xonkxonkfn func(item junk.Junk, origin string) *Honk
433
434 saveoneup := func(xid string) {
435 log.Printf("getting oneup: %s", xid)
436 if depth >= maxdepth {
437 log.Printf("in too deep")
438 return
439 }
440 obj, err := GetJunk(xid)
441 if err != nil {
442 log.Printf("error getting oneup: %s", err)
443 return
444 }
445 depth++
446 xonk := xonkxonkfn(obj, originate(xid))
447 if xonk != nil {
448 savexonk(user, xonk)
449 }
450 depth--
451 }
452
453 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
454 // id, _ := item.GetString( "id")
455 what, _ := item.GetString("type")
456 dt, _ := item.GetString("published")
457
458 var audience []string
459 var err error
460 var xid, rid, url, content, precis, convoy, oonker string
461 var obj junk.Junk
462 var ok bool
463 switch what {
464 case "Announce":
465 obj, ok = item.GetMap("object")
466 if ok {
467 xid, _ = obj.GetString("id")
468 } else {
469 xid, _ = item.GetString("object")
470 }
471 if !needxonkid(user, xid) {
472 return nil
473 }
474 log.Printf("getting bonk: %s", xid)
475 obj, err = GetJunk(xid)
476 if err != nil {
477 log.Printf("error regetting: %s", err)
478 if err.Error() == "http get status: 502" {
479 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
480 obj, err = GetJunk(xid)
481 if err != nil {
482 log.Printf("still couldn't get it")
483 } else {
484 log.Printf("retry success!")
485 }
486 }
487 }
488 origin = originate(xid)
489 what = "bonk"
490 case "Create":
491 obj, ok = item.GetMap("object")
492 if !ok {
493 xid, _ = obj.GetString("object")
494 log.Printf("getting created honk: %s", xid)
495 obj, err = GetJunk(xid)
496 if err != nil {
497 log.Printf("error getting creation: %s", err)
498 }
499 }
500 what = "honk"
501 case "Delete":
502 obj, _ = item.GetMap("object")
503 xid, _ = item.GetString("object")
504 what = "eradicate"
505 case "Video":
506 fallthrough
507 case "Question":
508 fallthrough
509 case "Note":
510 fallthrough
511 case "Article":
512 fallthrough
513 case "Page":
514 obj = item
515 what = "honk"
516 default:
517 log.Printf("unknown activity: %s", what)
518 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
519 item.Write(fd)
520 io.WriteString(fd, "\n")
521 fd.Close()
522 return nil
523 }
524
525 var xonk Honk
526 who, _ := item.GetString("actor")
527 if obj != nil {
528 if who == "" {
529 who = extractattrto(obj)
530 }
531 oonker = extractattrto(obj)
532 ot, _ := obj.GetString("type")
533 url, _ = obj.GetString("url")
534 if ot == "Tombstone" {
535 xid, _ = obj.GetString("id")
536 } else {
537 audience = newphone(audience, obj)
538 xid, _ = obj.GetString("id")
539 precis, _ = obj.GetString("summary")
540 if precis == "" {
541 precis, _ = obj.GetString("name")
542 }
543 content, _ = obj.GetString("content")
544 if !strings.HasPrefix(content, "<p>") {
545 content = "<p>" + content
546 }
547 sens, _ := obj["sensitive"].(bool)
548 if sens && precis == "" {
549 precis = "unspecified horror"
550 }
551 rid, ok = obj.GetString("inReplyTo")
552 if !ok {
553 robj, ok := obj.GetMap("inReplyTo")
554 if ok {
555 rid, _ = robj.GetString("id")
556 }
557 }
558 convoy, _ = obj.GetString("context")
559 if convoy == "" {
560 convoy, _ = obj.GetString("conversation")
561 }
562 if ot == "Question" {
563 if what == "honk" {
564 what = "qonk"
565 }
566 content += "<ul>"
567 ans, _ := obj.GetArray("oneOf")
568 for _, ai := range ans {
569 a, ok := ai.(junk.Junk)
570 if !ok {
571 continue
572 }
573 as, _ := a.GetString("name")
574 content += "<li>" + as
575 }
576 ans, _ = obj.GetArray("anyOf")
577 for _, ai := range ans {
578 a, ok := ai.(junk.Junk)
579 if !ok {
580 continue
581 }
582 as, _ := a.GetString("name")
583 content += "<li>" + as
584 }
585 content += "</ul>"
586 }
587 if what == "honk" && rid != "" {
588 what = "tonk"
589 }
590 }
591 atts, _ := obj.GetArray("attachment")
592 for i, atti := range atts {
593 att, ok := atti.(junk.Junk)
594 if !ok {
595 continue
596 }
597 at, _ := att.GetString("type")
598 mt, _ := att.GetString("mediaType")
599 u, _ := att.GetString("url")
600 name, _ := att.GetString("name")
601 localize := false
602 if i > 4 {
603 log.Printf("excessive attachment: %s", at)
604 } else if at == "Document" || at == "Image" {
605 mt = strings.ToLower(mt)
606 log.Printf("attachment: %s %s", mt, u)
607 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
608 localize = true
609 }
610 } else {
611 log.Printf("unknown attachment: %s", at)
612 }
613 donk := savedonk(u, name, mt, localize)
614 if donk != nil {
615 xonk.Donks = append(xonk.Donks, donk)
616 }
617 }
618 tags, _ := obj.GetArray("tag")
619 for _, tagi := range tags {
620 tag, ok := tagi.(junk.Junk)
621 if !ok {
622 continue
623 }
624 tt, _ := tag.GetString("type")
625 name, _ := tag.GetString("name")
626 if tt == "Emoji" {
627 icon, _ := tag.GetMap("icon")
628 mt, _ := icon.GetString("mediaType")
629 if mt == "" {
630 mt = "image/png"
631 }
632 u, _ := icon.GetString("url")
633 donk := savedonk(u, name, mt, true)
634 if donk != nil {
635 xonk.Donks = append(xonk.Donks, donk)
636 }
637 }
638 }
639 }
640 if originate(xid) != origin {
641 log.Printf("original sin: %s <> %s", xid, origin)
642 item.Write(os.Stdout)
643 return nil
644 }
645 audience = append(audience, who)
646
647 audience = oneofakind(audience)
648
649 if currenttid == "" {
650 currenttid = convoy
651 }
652
653 if oonker == who {
654 oonker = ""
655 }
656 xonk.UserID = user.ID
657 xonk.What = what
658 xonk.Honker = who
659 xonk.XID = xid
660 xonk.RID = rid
661 xonk.Date, _ = time.Parse(time.RFC3339, dt)
662 xonk.URL = url
663 xonk.Noise = content
664 xonk.Precis = precis
665 xonk.Audience = audience
666 xonk.Oonker = oonker
667
668 if needxonk(user, &xonk) {
669 if rid != "" {
670 if needxonkid(user, rid) {
671 saveoneup(rid)
672 }
673 }
674 if convoy == "" {
675 convoy = currenttid
676 }
677 xonk.Convoy = convoy
678 return &xonk
679 }
680 return nil
681 }
682
683 return xonkxonkfn(item, origin)
684}
685
686func rubadubdub(user *WhatAbout, req junk.Junk) {
687 xid, _ := req.GetString("id")
688 actor, _ := req.GetString("actor")
689 j := junk.New()
690 j["@context"] = itiswhatitis
691 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
692 j["type"] = "Accept"
693 j["actor"] = user.URL
694 j["to"] = actor
695 j["published"] = time.Now().UTC().Format(time.RFC3339)
696 j["object"] = req
697
698 var buf bytes.Buffer
699 j.Write(&buf)
700 msg := buf.Bytes()
701
702 deliverate(0, user.Name, actor, msg)
703}
704
705func itakeitallback(user *WhatAbout, xid string) {
706 j := junk.New()
707 j["@context"] = itiswhatitis
708 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
709 j["type"] = "Undo"
710 j["actor"] = user.URL
711 j["to"] = xid
712 f := junk.New()
713 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
714 f["type"] = "Follow"
715 f["actor"] = user.URL
716 f["to"] = xid
717 f["object"] = xid
718 j["object"] = f
719 j["published"] = time.Now().UTC().Format(time.RFC3339)
720
721 var buf bytes.Buffer
722 j.Write(&buf)
723 msg := buf.Bytes()
724
725 deliverate(0, user.Name, xid, msg)
726}
727
728func subsub(user *WhatAbout, xid string) {
729 j := junk.New()
730 j["@context"] = itiswhatitis
731 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
732 j["type"] = "Follow"
733 j["actor"] = user.URL
734 j["to"] = xid
735 j["object"] = xid
736 j["published"] = time.Now().UTC().Format(time.RFC3339)
737
738 var buf bytes.Buffer
739 j.Write(&buf)
740 msg := buf.Bytes()
741
742 deliverate(0, user.Name, xid, msg)
743}
744
745func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
746 dt := h.Date.Format(time.RFC3339)
747 var jo junk.Junk
748 j := junk.New()
749 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
750 j["actor"] = user.URL
751 j["published"] = dt
752 if h.Public {
753 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
754 } else {
755 j["to"] = h.Audience[0]
756 }
757 if len(h.Audience) > 1 {
758 j["cc"] = h.Audience[1:]
759 }
760
761 switch h.What {
762 case "tonk":
763 fallthrough
764 case "honk":
765 j["type"] = "Create"
766
767 jo = junk.New()
768 jo["id"] = h.XID
769 jo["type"] = "Note"
770 jo["published"] = dt
771 jo["url"] = h.XID
772 jo["attributedTo"] = user.URL
773 if h.RID != "" {
774 jo["inReplyTo"] = h.RID
775 }
776 if h.Convoy != "" {
777 jo["context"] = h.Convoy
778 jo["conversation"] = h.Convoy
779 }
780 jo["to"] = h.Audience[0]
781 if len(h.Audience) > 1 {
782 jo["cc"] = h.Audience[1:]
783 }
784 if !h.Public {
785 jo["directMessage"] = true
786 }
787 jo["summary"] = h.Precis
788 jo["content"] = mentionize(h.Noise)
789 if strings.HasPrefix(h.Precis, "DZ:") {
790 jo["sensitive"] = true
791 }
792
793 var tags []junk.Junk
794 g := bunchofgrapes(h.Noise)
795 for _, m := range g {
796 t := junk.New()
797 t["type"] = "Mention"
798 t["name"] = m.who
799 t["href"] = m.where
800 tags = append(tags, t)
801 }
802 ooo := ontologies(h.Noise)
803 for _, o := range ooo {
804 t := junk.New()
805 t["type"] = "Hashtag"
806 t["name"] = o
807 tags = append(tags, t)
808 }
809 herd := herdofemus(h.Noise)
810 for _, e := range herd {
811 t := junk.New()
812 t["id"] = e.ID
813 t["type"] = "Emoji"
814 t["name"] = e.Name
815 i := junk.New()
816 i["type"] = "Image"
817 i["mediaType"] = "image/png"
818 i["url"] = e.ID
819 t["icon"] = i
820 tags = append(tags, t)
821 }
822 if len(tags) > 0 {
823 jo["tag"] = tags
824 }
825 var atts []junk.Junk
826 for _, d := range h.Donks {
827 if re_emus.MatchString(d.Name) {
828 continue
829 }
830 jd := junk.New()
831 jd["mediaType"] = d.Media
832 jd["name"] = d.Name
833 jd["type"] = "Document"
834 jd["url"] = d.URL
835 atts = append(atts, jd)
836 }
837 if len(atts) > 0 {
838 jo["attachment"] = atts
839 }
840 j["object"] = jo
841 case "bonk":
842 j["type"] = "Announce"
843 if h.Convoy != "" {
844 j["context"] = h.Convoy
845 }
846 j["object"] = h.XID
847 case "zonk":
848 j["type"] = "Delete"
849 j["object"] = h.XID
850 }
851
852 return j, jo
853}
854
855func honkworldwide(user *WhatAbout, honk *Honk) {
856 jonk, _ := jonkjonk(user, honk)
857 jonk["@context"] = itiswhatitis
858 var buf bytes.Buffer
859 jonk.Write(&buf)
860 msg := buf.Bytes()
861
862 rcpts := make(map[string]bool)
863 for _, a := range honk.Audience {
864 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
865 box, _ := getboxes(a)
866 if box != nil && honk.Public && box.Shared != "" {
867 rcpts["%"+box.Shared] = true
868 } else {
869 rcpts[a] = true
870 }
871 }
872 }
873 if honk.Public {
874 for _, f := range getdubs(user.ID) {
875 box, _ := getboxes(f.XID)
876 if box != nil && box.Shared != "" {
877 rcpts["%"+box.Shared] = true
878 } else {
879 rcpts[f.XID] = true
880 }
881 }
882 }
883 for a := range rcpts {
884 go deliverate(0, user.Name, a, msg)
885 }
886}
887
888func asjonker(user *WhatAbout) junk.Junk {
889 about := obfusbreak(user.About)
890
891 j := junk.New()
892 j["@context"] = itiswhatitis
893 j["id"] = user.URL
894 j["type"] = "Person"
895 j["inbox"] = user.URL + "/inbox"
896 j["outbox"] = user.URL + "/outbox"
897 j["followers"] = user.URL + "/followers"
898 j["following"] = user.URL + "/following"
899 j["name"] = user.Display
900 j["preferredUsername"] = user.Name
901 j["summary"] = about
902 j["url"] = user.URL
903 a := junk.New()
904 a["type"] = "Image"
905 a["mediaType"] = "image/png"
906 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
907 j["icon"] = a
908 k := junk.New()
909 k["id"] = user.URL + "#key"
910 k["owner"] = user.URL
911 k["publicKeyPem"] = user.Key
912 j["publicKey"] = k
913
914 return j
915}
916
917var handfull = make(map[string]string)
918var handlock sync.Mutex
919
920func gofish(name string) string {
921 if name[0] == '@' {
922 name = name[1:]
923 }
924 m := strings.Split(name, "@")
925 if len(m) != 2 {
926 log.Printf("bad fish name: %s", name)
927 return ""
928 }
929 handlock.Lock()
930 ref, ok := handfull[name]
931 handlock.Unlock()
932 if ok {
933 return ref
934 }
935 row := stmtGetXonker.QueryRow(name, "fishname")
936 var href string
937 err := row.Scan(&href)
938 if err == nil {
939 handlock.Lock()
940 handfull[name] = href
941 handlock.Unlock()
942 return href
943 }
944 log.Printf("fishing for %s", name)
945 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
946 if err != nil {
947 log.Printf("failed to go fish %s: %s", name, err)
948 handlock.Lock()
949 handfull[name] = ""
950 handlock.Unlock()
951 return ""
952 }
953 links, _ := j.GetArray("links")
954 for _, li := range links {
955 l, ok := li.(junk.Junk)
956 if !ok {
957 continue
958 }
959 href, _ := l.GetString("href")
960 rel, _ := l.GetString("rel")
961 t, _ := l.GetString("type")
962 if rel == "self" && friendorfoe(t) {
963 stmtSaveXonker.Exec(name, href, "fishname")
964 handlock.Lock()
965 handfull[name] = href
966 handlock.Unlock()
967 return href
968 }
969 }
970 handlock.Lock()
971 handfull[name] = ""
972 handlock.Unlock()
973 return ""
974}
975
976func isactor(t string) bool {
977 switch t {
978 case "Person":
979 case "Application":
980 case "Service":
981 default:
982 return false
983 }
984 return true
985}
986
987func investigate(name string) string {
988 if name == "" {
989 return ""
990 }
991 if name[0] == '@' {
992 name = gofish(name)
993 }
994 if name == "" {
995 return ""
996 }
997 obj, err := GetJunkFast(name)
998 if err != nil {
999 log.Printf("error investigating honker: %s", err)
1000 return ""
1001 }
1002 t, _ := obj.GetString("type")
1003 if !isactor(t) {
1004 log.Printf("it's not a person! %s", name)
1005 return ""
1006 }
1007 id, _ := obj.GetString("id")
1008 return id
1009}