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 "compress/gzip"
21 "crypto/rsa"
22 "database/sql"
23 "fmt"
24 "io"
25 "log"
26 "net/http"
27 "net/url"
28 "os"
29 "regexp"
30 "strings"
31 "sync"
32 "time"
33
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")
70 req.Header.Set("Content-Type", theonetruename)
71 zig(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
88type gzCloser struct {
89 r *gzip.Reader
90 under io.ReadCloser
91}
92
93func (gz *gzCloser) Read(p []byte) (int, error) {
94 return gz.r.Read(p)
95}
96
97func (gz *gzCloser) Close() error {
98 defer gz.under.Close()
99 return gz.r.Close()
100}
101
102func GetJunk(url string) (junk.Junk, error) {
103 client := http.DefaultClient
104 req, err := http.NewRequest("GET", url, nil)
105 if err != nil {
106 return nil, err
107 }
108 at := thefakename
109 if strings.Contains(url, ".well-known/webfinger?resource") {
110 at = "application/jrd+json"
111 }
112 req.Header.Set("Accept", at)
113 req.Header.Set("Accept-Encoding", "gzip")
114 req.Header.Set("User-Agent", "honksnonk/5.0")
115 resp, err := client.Do(req)
116 if err != nil {
117 log.Printf("first get failed: %s", err)
118 resp, err = client.Do(req)
119 if err != nil {
120 return nil, err
121 }
122 log.Printf("retry succeeded!")
123 }
124 if resp.StatusCode != 200 {
125 resp.Body.Close()
126 return nil, fmt.Errorf("http get status: %d", resp.StatusCode)
127 }
128 if strings.EqualFold(resp.Header.Get("Content-Encoding"), "gzip") {
129 gz, err := gzip.NewReader(resp.Body)
130 if err != nil {
131 resp.Body.Close()
132 return nil, err
133 }
134 resp.Body = &gzCloser{r: gz, under: resp.Body}
135 }
136 defer resp.Body.Close()
137 j, err := junk.Read(resp.Body)
138 return j, err
139}
140
141func savedonk(url string, name, media string, localize bool) *Donk {
142 if url == "" {
143 return nil
144 }
145 var donk Donk
146 row := stmtFindFile.QueryRow(url)
147 err := row.Scan(&donk.FileID)
148 if err == nil {
149 return &donk
150 }
151 log.Printf("saving donk: %s", url)
152 if err != nil && err != sql.ErrNoRows {
153 log.Printf("error querying: %s", err)
154 }
155 xid := xfiltrate()
156 data := []byte{}
157 if localize {
158 resp, err := http.Get(url)
159 if err != nil {
160 log.Printf("error fetching %s: %s", url, err)
161 localize = false
162 goto saveit
163 }
164 defer resp.Body.Close()
165 if resp.StatusCode != 200 {
166 localize = false
167 goto saveit
168 }
169 var buf bytes.Buffer
170 io.Copy(&buf, resp.Body)
171
172 data = buf.Bytes()
173 if strings.HasPrefix(media, "image") {
174 img, err := image.Vacuum(&buf, image.Params{MaxWidth: 2048, MaxHeight: 2048})
175 if err != nil {
176 log.Printf("unable to decode image: %s", err)
177 localize = false
178 data = []byte{}
179 goto saveit
180 }
181 data = img.Data
182 media = "image/" + img.Format
183 } else if len(data) > 100000 {
184 log.Printf("not saving large attachment")
185 localize = false
186 data = []byte{}
187 }
188 }
189saveit:
190 res, err := stmtSaveFile.Exec(xid, name, url, media, localize, data)
191 if err != nil {
192 log.Printf("error saving file %s: %s", url, err)
193 return nil
194 }
195 donk.FileID, _ = res.LastInsertId()
196 return &donk
197}
198
199func iszonked(userid int64, xid string) bool {
200 row := stmtFindZonk.QueryRow(userid, xid)
201 var id int64
202 err := row.Scan(&id)
203 if err == nil {
204 return true
205 }
206 if err != sql.ErrNoRows {
207 log.Printf("err querying zonk: %s", err)
208 }
209 return false
210}
211
212func needxonk(user *WhatAbout, x *Honk) bool {
213 if x.What == "eradicate" {
214 return true
215 }
216 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
217 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
218 return false
219 }
220 return needxonkid(user, x.XID)
221}
222func needxonkid(user *WhatAbout, xid string) bool {
223 if strings.HasPrefix(xid, user.URL+"/h/") {
224 return false
225 }
226 if iszonked(user.ID, xid) {
227 log.Printf("already zonked: %s", xid)
228 return false
229 }
230 row := stmtFindXonk.QueryRow(user.ID, xid)
231 var id int64
232 err := row.Scan(&id)
233 if err == nil {
234 return false
235 }
236 if err != sql.ErrNoRows {
237 log.Printf("err querying xonk: %s", err)
238 }
239 return true
240}
241
242func savexonk(user *WhatAbout, x *Honk) {
243 if x.What == "eradicate" {
244 log.Printf("eradicating %s by %s", x.XID, x.Honker)
245 xonk := getxonk(user.ID, x.XID)
246 if xonk != nil {
247 stmtZonkDonks.Exec(xonk.ID)
248 _, err := stmtZonkIt.Exec(user.ID, x.XID)
249 if err != nil {
250 log.Printf("error eradicating: %s", err)
251 }
252 }
253 stmtSaveZonker.Exec(user.ID, x.XID, "zonk")
254 return
255 }
256 log.Printf("saving xonk: %s", x.XID)
257 dt := x.Date.UTC().Format(dbtimeformat)
258 aud := strings.Join(x.Audience, " ")
259 whofore := 0
260 if strings.Contains(aud, user.URL) {
261 whofore = 1
262 }
263 res, err := stmtSaveHonk.Exec(x.UserID, x.What, x.Honker, x.XID, x.RID, dt, x.URL, aud,
264 x.Noise, x.Convoy, whofore, "html", x.Precis, x.Oonker)
265 if err != nil {
266 log.Printf("err saving xonk: %s", err)
267 return
268 }
269 x.ID, _ = res.LastInsertId()
270 for _, d := range x.Donks {
271 _, err = stmtSaveDonk.Exec(x.ID, d.FileID)
272 if err != nil {
273 log.Printf("err saving donk: %s", err)
274 return
275 }
276 }
277}
278
279type Box struct {
280 In string
281 Out string
282 Shared string
283}
284
285var boxofboxes = make(map[string]*Box)
286var boxlock sync.Mutex
287var boxinglock sync.Mutex
288
289func getboxes(ident string) (*Box, error) {
290 boxlock.Lock()
291 b, ok := boxofboxes[ident]
292 boxlock.Unlock()
293 if ok {
294 return b, nil
295 }
296
297 boxinglock.Lock()
298 defer boxinglock.Unlock()
299
300 boxlock.Lock()
301 b, ok = boxofboxes[ident]
302 boxlock.Unlock()
303 if ok {
304 return b, nil
305 }
306
307 var info string
308 row := stmtGetXonker.QueryRow(ident, "boxes")
309 err := row.Scan(&info)
310 if err != nil {
311 j, err := GetJunk(ident)
312 if err != nil {
313 return nil, err
314 }
315 inbox, _ := j.GetString("inbox")
316 outbox, _ := j.GetString("outbox")
317 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
318 b = &Box{In: inbox, Out: outbox, Shared: sbox}
319 if inbox != "" {
320 m := strings.Join([]string{inbox, outbox, sbox}, " ")
321 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
322 if err != nil {
323 log.Printf("error saving boxes: %s", err)
324 }
325 }
326 } else {
327 m := strings.Split(info, " ")
328 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
329 }
330
331 boxlock.Lock()
332 boxofboxes[ident] = b
333 boxlock.Unlock()
334 return b, nil
335}
336
337func gimmexonks(user *WhatAbout, outbox string) {
338 log.Printf("getting outbox: %s", outbox)
339 j, err := GetJunk(outbox)
340 if err != nil {
341 log.Printf("error getting outbox: %s", err)
342 return
343 }
344 t, _ := j.GetString("type")
345 origin := originate(outbox)
346 if t == "OrderedCollection" {
347 items, _ := j.GetArray("orderedItems")
348 if items == nil {
349 obj, ok := j.GetMap("first")
350 if ok {
351 items, _ = obj.GetArray("orderedItems")
352 } else {
353 page1, _ := j.GetString("first")
354 j, err = GetJunk(page1)
355 if err != nil {
356 log.Printf("error gettings page1: %s", err)
357 return
358 }
359 items, _ = j.GetArray("orderedItems")
360 }
361 }
362 if len(items) > 20 {
363 items = items[0:20]
364 }
365 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
366 items[i], items[j] = items[j], items[i]
367 }
368 for _, item := range items {
369 obj, ok := item.(junk.Junk)
370 if !ok {
371 continue
372 }
373 xonk := xonkxonk(user, obj, origin)
374 if xonk != nil {
375 savexonk(user, xonk)
376 }
377 }
378 }
379}
380
381func peeppeep() {
382 user, _ := butwhatabout("htest")
383 honkers := gethonkers(user.ID)
384 for _, f := range honkers {
385 if f.Flavor != "peep" {
386 continue
387 }
388 log.Printf("getting updates: %s", f.XID)
389 box, err := getboxes(f.XID)
390 if err != nil {
391 log.Printf("error getting outbox: %s", err)
392 continue
393 }
394 gimmexonks(user, box.Out)
395 }
396}
397func whosthere(xid string) ([]string, string) {
398 obj, err := GetJunk(xid)
399 if err != nil {
400 log.Printf("error getting remote xonk: %s", err)
401 return nil, ""
402 }
403 convoy, _ := obj.GetString("context")
404 if convoy == "" {
405 convoy, _ = obj.GetString("conversation")
406 }
407 return newphone(nil, obj), convoy
408}
409
410func newphone(a []string, obj junk.Junk) []string {
411 for _, addr := range []string{"to", "cc", "attributedTo"} {
412 who, _ := obj.GetString(addr)
413 if who != "" {
414 a = append(a, who)
415 }
416 whos, _ := obj.GetArray(addr)
417 for _, w := range whos {
418 who, _ := w.(string)
419 if who != "" {
420 a = append(a, who)
421 }
422 }
423 }
424 return a
425}
426
427func extractattrto(obj junk.Junk) string {
428 who, _ := obj.GetString("attributedTo")
429 if who != "" {
430 return who
431 }
432 arr, _ := obj.GetArray("attributedTo")
433 for _, a := range arr {
434 o, ok := a.(junk.Junk)
435 if ok {
436 t, _ := o.GetString("type")
437 id, _ := o.GetString("id")
438 if t == "Person" || t == "" {
439 return id
440 }
441 }
442 }
443 return ""
444}
445
446func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
447 xonk := xonkxonk(user, j, origin)
448 if xonk != nil {
449 savexonk(user, xonk)
450 }
451}
452
453func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
454 depth := 0
455 maxdepth := 4
456 currenttid := ""
457 var xonkxonkfn func(item junk.Junk, origin string) *Honk
458
459 saveoneup := func(xid string) {
460 log.Printf("getting oneup: %s", xid)
461 if depth >= maxdepth {
462 log.Printf("in too deep")
463 return
464 }
465 obj, err := GetJunk(xid)
466 if err != nil {
467 log.Printf("error getting oneup: %s", err)
468 return
469 }
470 depth++
471 xonk := xonkxonkfn(obj, originate(xid))
472 if xonk != nil {
473 savexonk(user, xonk)
474 }
475 depth--
476 }
477
478 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
479 // id, _ := item.GetString( "id")
480 what, _ := item.GetString("type")
481 dt, _ := item.GetString("published")
482
483 var audience []string
484 var err error
485 var xid, rid, url, content, precis, convoy, oonker string
486 var obj junk.Junk
487 var ok bool
488 switch what {
489 case "Announce":
490 obj, ok = item.GetMap("object")
491 if ok {
492 xid, _ = obj.GetString("id")
493 } else {
494 xid, _ = item.GetString("object")
495 }
496 if !needxonkid(user, xid) {
497 return nil
498 }
499 log.Printf("getting bonk: %s", xid)
500 obj, err = GetJunk(xid)
501 if err != nil {
502 log.Printf("error regetting: %s", err)
503 }
504 origin = originate(xid)
505 what = "bonk"
506 case "Create":
507 obj, _ = item.GetMap("object")
508 what = "honk"
509 case "Delete":
510 obj, _ = item.GetMap("object")
511 xid, _ = item.GetString("object")
512 what = "eradicate"
513 case "Video":
514 fallthrough
515 case "Question":
516 fallthrough
517 case "Note":
518 fallthrough
519 case "Article":
520 fallthrough
521 case "Page":
522 obj = item
523 what = "honk"
524 default:
525 log.Printf("unknown activity: %s", what)
526 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
527 item.Write(fd)
528 io.WriteString(fd, "\n")
529 fd.Close()
530 return nil
531 }
532
533 var xonk Honk
534 who, _ := item.GetString("actor")
535 if obj != nil {
536 if who == "" {
537 who = extractattrto(obj)
538 }
539 oonker = extractattrto(obj)
540 ot, _ := obj.GetString("type")
541 url, _ = obj.GetString("url")
542 if ot == "Tombstone" {
543 xid, _ = obj.GetString("id")
544 } else {
545 audience = newphone(audience, obj)
546 xid, _ = obj.GetString("id")
547 precis, _ = obj.GetString("summary")
548 content, _ = obj.GetString("content")
549 if !strings.HasPrefix(content, "<p>") {
550 content = "<p>" + content
551 }
552 rid, _ = obj.GetString("inReplyTo")
553 convoy, _ = obj.GetString("context")
554 if convoy == "" {
555 convoy, _ = obj.GetString("conversation")
556 }
557 if ot == "Question" {
558 if what == "honk" {
559 what = "qonk"
560 }
561 content += "<ul>"
562 ans, _ := obj.GetArray("oneOf")
563 for _, ai := range ans {
564 a, ok := ai.(junk.Junk)
565 if !ok {
566 continue
567 }
568 as, _ := a.GetString("name")
569 content += "<li>" + as
570 }
571 ans, _ = obj.GetArray("anyOf")
572 for _, ai := range ans {
573 a, ok := ai.(junk.Junk)
574 if !ok {
575 continue
576 }
577 as, _ := a.GetString("name")
578 content += "<li>" + as
579 }
580 content += "</ul>"
581 }
582 if what == "honk" && rid != "" {
583 what = "tonk"
584 }
585 }
586 atts, _ := obj.GetArray("attachment")
587 for i, atti := range atts {
588 att, ok := atti.(junk.Junk)
589 if !ok {
590 continue
591 }
592 at, _ := att.GetString("type")
593 mt, _ := att.GetString("mediaType")
594 u, _ := att.GetString("url")
595 name, _ := att.GetString("name")
596 localize := false
597 if i > 4 {
598 log.Printf("excessive attachment: %s", at)
599 } else if at == "Document" || at == "Image" {
600 mt = strings.ToLower(mt)
601 log.Printf("attachment: %s %s", mt, u)
602 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
603 localize = true
604 }
605 } else {
606 log.Printf("unknown attachment: %s", at)
607 }
608 donk := savedonk(u, name, mt, localize)
609 if donk != nil {
610 xonk.Donks = append(xonk.Donks, donk)
611 }
612 }
613 tags, _ := obj.GetArray("tag")
614 for _, tagi := range tags {
615 tag, ok := tagi.(junk.Junk)
616 if !ok {
617 continue
618 }
619 tt, _ := tag.GetString("type")
620 name, _ := tag.GetString("name")
621 if tt == "Emoji" {
622 icon, _ := tag.GetMap("icon")
623 mt, _ := icon.GetString("mediaType")
624 if mt == "" {
625 mt = "image/png"
626 }
627 u, _ := icon.GetString("url")
628 donk := savedonk(u, name, mt, true)
629 if donk != nil {
630 xonk.Donks = append(xonk.Donks, donk)
631 }
632 }
633 }
634 }
635 if originate(xid) != origin {
636 log.Printf("original sin: %s <> %s", xid, origin)
637 item.Write(os.Stdout)
638 return nil
639 }
640 audience = append(audience, who)
641
642 audience = oneofakind(audience)
643
644 if currenttid == "" {
645 currenttid = convoy
646 }
647
648 if oonker == who {
649 oonker = ""
650 }
651 xonk.UserID = user.ID
652 xonk.What = what
653 xonk.Honker = who
654 xonk.XID = xid
655 xonk.RID = rid
656 xonk.Date, _ = time.Parse(time.RFC3339, dt)
657 xonk.URL = url
658 xonk.Noise = content
659 xonk.Precis = precis
660 xonk.Audience = audience
661 xonk.Oonker = oonker
662
663 if needxonk(user, &xonk) {
664 if rid != "" {
665 if needxonkid(user, rid) {
666 saveoneup(rid)
667 }
668 }
669 if convoy == "" {
670 convoy = currenttid
671 }
672 xonk.Convoy = convoy
673 return &xonk
674 }
675 return nil
676 }
677
678 return xonkxonkfn(item, origin)
679}
680
681func rubadubdub(user *WhatAbout, req junk.Junk) {
682 xid, _ := req.GetString("id")
683 actor, _ := req.GetString("actor")
684 j := junk.New()
685 j["@context"] = itiswhatitis
686 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
687 j["type"] = "Accept"
688 j["actor"] = user.URL
689 j["to"] = actor
690 j["published"] = time.Now().UTC().Format(time.RFC3339)
691 j["object"] = req
692
693 var buf bytes.Buffer
694 j.Write(&buf)
695 msg := buf.Bytes()
696
697 deliverate(0, user.Name, actor, msg)
698}
699
700func itakeitallback(user *WhatAbout, xid string) {
701 j := junk.New()
702 j["@context"] = itiswhatitis
703 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
704 j["type"] = "Undo"
705 j["actor"] = user.URL
706 j["to"] = xid
707 f := junk.New()
708 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
709 f["type"] = "Follow"
710 f["actor"] = user.URL
711 f["to"] = xid
712 f["object"] = xid
713 j["object"] = f
714 j["published"] = time.Now().UTC().Format(time.RFC3339)
715
716 var buf bytes.Buffer
717 j.Write(&buf)
718 msg := buf.Bytes()
719
720 deliverate(0, user.Name, xid, msg)
721}
722
723func subsub(user *WhatAbout, xid string) {
724 j := junk.New()
725 j["@context"] = itiswhatitis
726 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
727 j["type"] = "Follow"
728 j["actor"] = user.URL
729 j["to"] = xid
730 j["object"] = xid
731 j["published"] = time.Now().UTC().Format(time.RFC3339)
732
733 var buf bytes.Buffer
734 j.Write(&buf)
735 msg := buf.Bytes()
736
737 deliverate(0, user.Name, xid, msg)
738}
739
740var re_spicy = regexp.MustCompile("^(\U0001f336\ufe0f?){3,}")
741
742func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
743 dt := h.Date.Format(time.RFC3339)
744 var jo junk.Junk
745 j := junk.New()
746 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
747 j["actor"] = user.URL
748 j["published"] = dt
749 if h.Public {
750 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
751 } else {
752 j["to"] = h.Audience[0]
753 }
754 if len(h.Audience) > 1 {
755 j["cc"] = h.Audience[1:]
756 }
757
758 switch h.What {
759 case "tonk":
760 fallthrough
761 case "honk":
762 j["type"] = "Create"
763
764 jo = junk.New()
765 jo["id"] = h.XID
766 jo["type"] = "Note"
767 jo["published"] = dt
768 jo["url"] = h.XID
769 jo["attributedTo"] = user.URL
770 if h.RID != "" {
771 jo["inReplyTo"] = h.RID
772 }
773 if h.Convoy != "" {
774 jo["context"] = h.Convoy
775 jo["conversation"] = h.Convoy
776 }
777 jo["to"] = h.Audience[0]
778 if len(h.Audience) > 1 {
779 jo["cc"] = h.Audience[1:]
780 }
781 if !h.Public {
782 jo["directMessage"] = true
783 }
784 jo["summary"] = h.Precis
785 jo["content"] = mentionize(h.Noise)
786 if strings.HasPrefix(h.Precis, "DZ:") {
787 jo["sensitive"] = true
788 } else if peppers := re_spicy.FindString(h.Noise); peppers != "" {
789 jo["summary"] = peppers
790 jo["sensitive"] = true
791 }
792
793 var tags []interface{}
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 []interface{}
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 {
867 if honk.Public && box.Shared != "" {
868 rcpts["%"+box.Shared] = true
869 } else {
870 rcpts["%"+box.In] = true
871 }
872 } else {
873 rcpts[a] = true
874 }
875 }
876 }
877 if honk.Public {
878 for _, f := range getdubs(user.ID) {
879 box, _ := getboxes(f.XID)
880 if box != nil && box.Shared != "" {
881 rcpts["%"+box.Shared] = true
882 } else {
883 rcpts[f.XID] = true
884 }
885 }
886 }
887 for a := range rcpts {
888 go deliverate(0, user.Name, a, msg)
889 }
890}
891
892func asjonker(user *WhatAbout) junk.Junk {
893 about := obfusbreak(user.About)
894
895 j := junk.New()
896 j["@context"] = itiswhatitis
897 j["id"] = user.URL
898 j["type"] = "Person"
899 j["inbox"] = user.URL + "/inbox"
900 j["outbox"] = user.URL + "/outbox"
901 j["followers"] = user.URL + "/followers"
902 j["following"] = user.URL + "/following"
903 j["name"] = user.Display
904 j["preferredUsername"] = user.Name
905 j["summary"] = about
906 j["url"] = user.URL
907 a := junk.New()
908 a["type"] = "Image"
909 a["mediaType"] = "image/png"
910 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
911 j["icon"] = a
912 k := junk.New()
913 k["id"] = user.URL + "#key"
914 k["owner"] = user.URL
915 k["publicKeyPem"] = user.Key
916 j["publicKey"] = k
917
918 return j
919}
920
921var handfull = make(map[string]string)
922var handlock sync.Mutex
923
924func gofish(name string) string {
925 if name[0] == '@' {
926 name = name[1:]
927 }
928 m := strings.Split(name, "@")
929 if len(m) != 2 {
930 log.Printf("bad fish name: %s", name)
931 return ""
932 }
933 handlock.Lock()
934 ref, ok := handfull[name]
935 handlock.Unlock()
936 if ok {
937 return ref
938 }
939 row := stmtGetXonker.QueryRow(name, "fishname")
940 var href string
941 err := row.Scan(&href)
942 if err == nil {
943 handlock.Lock()
944 handfull[name] = href
945 handlock.Unlock()
946 return href
947 }
948 log.Printf("fishing for %s", name)
949 j, err := GetJunk(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
950 if err != nil {
951 log.Printf("failed to go fish %s: %s", name, err)
952 handlock.Lock()
953 handfull[name] = ""
954 handlock.Unlock()
955 return ""
956 }
957 links, _ := j.GetArray("links")
958 for _, li := range links {
959 l, ok := li.(junk.Junk)
960 if !ok {
961 continue
962 }
963 href, _ := l.GetString("href")
964 rel, _ := l.GetString("rel")
965 t, _ := l.GetString("type")
966 if rel == "self" && friendorfoe(t) {
967 stmtSaveXonker.Exec(name, href, "fishname")
968 handlock.Lock()
969 handfull[name] = href
970 handlock.Unlock()
971 return href
972 }
973 }
974 handlock.Lock()
975 handfull[name] = ""
976 handlock.Unlock()
977 return ""
978}
979
980func isactor(t string) bool {
981 switch t {
982 case "Person":
983 case "Application":
984 case "Service":
985 default:
986 return false
987 }
988 return true
989}
990
991func investigate(name string) string {
992 if name == "" {
993 return ""
994 }
995 if name[0] == '@' {
996 name = gofish(name)
997 }
998 if name == "" {
999 return ""
1000 }
1001 obj, err := GetJunk(name)
1002 if err != nil {
1003 log.Printf("error investigating honker: %s", err)
1004 return ""
1005 }
1006 t, _ := obj.GetString("type")
1007 if !isactor(t) {
1008 log.Printf("it's not a person! %s", name)
1009 return ""
1010 }
1011 id, _ := obj.GetString("id")
1012 return id
1013}