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