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