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, desc, 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 format := img.Format
169 media = "image/" + format
170 if format == "jpeg" {
171 format = "jpg"
172 }
173 xid = xid + "." + format
174 } else if len(data) > 100000 {
175 log.Printf("not saving large attachment")
176 localize = false
177 data = []byte{}
178 }
179 }
180saveit:
181 res, err := stmtSaveFile.Exec(xid, name, desc, url, media, localize, data)
182 if err != nil {
183 log.Printf("error saving file %s: %s", url, err)
184 return nil
185 }
186 donk.FileID, _ = res.LastInsertId()
187 return &donk
188}
189
190func iszonked(userid int64, xid string) bool {
191 row := stmtFindZonk.QueryRow(userid, xid)
192 var id int64
193 err := row.Scan(&id)
194 if err == nil {
195 return true
196 }
197 if err != sql.ErrNoRows {
198 log.Printf("err querying zonk: %s", err)
199 }
200 return false
201}
202
203func needxonk(user *WhatAbout, x *Honk) bool {
204 if x.What == "eradicate" {
205 return true
206 }
207 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
208 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
209 return false
210 }
211 return needxonkid(user, x.XID)
212}
213func needxonkid(user *WhatAbout, xid string) bool {
214 if strings.HasPrefix(xid, user.URL+"/") {
215 return false
216 }
217 if thoudostbitethythumb(user.ID, nil, xid) {
218 log.Printf("don't need thumb biter? %s", xid)
219 return false
220 }
221 if iszonked(user.ID, xid) {
222 log.Printf("already zonked: %s", xid)
223 return false
224 }
225 row := stmtFindXonk.QueryRow(user.ID, xid)
226 var id int64
227 err := row.Scan(&id)
228 if err == nil {
229 return false
230 }
231 if err != sql.ErrNoRows {
232 log.Printf("err querying xonk: %s", err)
233 }
234 return true
235}
236
237func savexonk(x *Honk) {
238 if x.What == "eradicate" {
239 log.Printf("eradicating %s by %s", x.XID, x.Honker)
240 xonk := getxonk(x.UserID, x.XID)
241 if xonk != nil {
242 deletehonk(xonk.ID)
243 }
244 _, err := stmtSaveZonker.Exec(x.UserID, x.XID, "zonk")
245 if err != nil {
246 log.Printf("error eradicating: %s", err)
247 }
248 return
249 }
250 log.Printf("saving xonk: %s", x.XID)
251 go prehandle(x.Honker)
252 go prehandle(x.Oonker)
253 savehonk(x)
254}
255
256type Box struct {
257 In string
258 Out string
259 Shared string
260}
261
262var boxofboxes = make(map[string]*Box)
263var boxlock sync.Mutex
264var boxinglock sync.Mutex
265
266func getboxes(ident string) (*Box, error) {
267 boxlock.Lock()
268 b, ok := boxofboxes[ident]
269 boxlock.Unlock()
270 if ok {
271 return b, nil
272 }
273
274 boxinglock.Lock()
275 defer boxinglock.Unlock()
276
277 boxlock.Lock()
278 b, ok = boxofboxes[ident]
279 boxlock.Unlock()
280 if ok {
281 return b, nil
282 }
283
284 var info string
285 row := stmtGetXonker.QueryRow(ident, "boxes")
286 err := row.Scan(&info)
287 if err != nil {
288 j, err := GetJunk(ident)
289 if err != nil {
290 return nil, err
291 }
292 inbox, _ := j.GetString("inbox")
293 outbox, _ := j.GetString("outbox")
294 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
295 b = &Box{In: inbox, Out: outbox, Shared: sbox}
296 if inbox != "" {
297 m := strings.Join([]string{inbox, outbox, sbox}, " ")
298 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
299 if err != nil {
300 log.Printf("error saving boxes: %s", err)
301 }
302 }
303 } else {
304 m := strings.Split(info, " ")
305 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
306 }
307
308 boxlock.Lock()
309 boxofboxes[ident] = b
310 boxlock.Unlock()
311 return b, nil
312}
313
314func gimmexonks(user *WhatAbout, outbox string) {
315 log.Printf("getting outbox: %s", outbox)
316 j, err := GetJunk(outbox)
317 if err != nil {
318 log.Printf("error getting outbox: %s", err)
319 return
320 }
321 t, _ := j.GetString("type")
322 origin := originate(outbox)
323 if t == "OrderedCollection" {
324 items, _ := j.GetArray("orderedItems")
325 if items == nil {
326 obj, ok := j.GetMap("first")
327 if ok {
328 items, _ = obj.GetArray("orderedItems")
329 } else {
330 page1, _ := j.GetString("first")
331 j, err = GetJunk(page1)
332 if err != nil {
333 log.Printf("error gettings page1: %s", err)
334 return
335 }
336 items, _ = j.GetArray("orderedItems")
337 }
338 }
339 if len(items) > 20 {
340 items = items[0:20]
341 }
342 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
343 items[i], items[j] = items[j], items[i]
344 }
345 for _, item := range items {
346 obj, ok := item.(junk.Junk)
347 if !ok {
348 continue
349 }
350 xonk := xonkxonk(user, obj, origin)
351 if xonk != nil {
352 savexonk(xonk)
353 }
354 }
355 }
356}
357
358func peeppeep() {
359 user, _ := butwhatabout("htest")
360 honkers := gethonkers(user.ID)
361 for _, f := range honkers {
362 if f.Flavor != "peep" {
363 continue
364 }
365 log.Printf("getting updates: %s", f.XID)
366 box, err := getboxes(f.XID)
367 if err != nil {
368 log.Printf("error getting outbox: %s", err)
369 continue
370 }
371 gimmexonks(user, box.Out)
372 }
373}
374func whosthere(xid string) ([]string, string) {
375 obj, err := GetJunk(xid)
376 if err != nil {
377 log.Printf("error getting remote xonk: %s", err)
378 return nil, ""
379 }
380 convoy, _ := obj.GetString("context")
381 if convoy == "" {
382 convoy, _ = obj.GetString("conversation")
383 }
384 return newphone(nil, obj), convoy
385}
386
387func newphone(a []string, obj junk.Junk) []string {
388 for _, addr := range []string{"to", "cc", "attributedTo"} {
389 who, _ := obj.GetString(addr)
390 if who != "" {
391 a = append(a, who)
392 }
393 whos, _ := obj.GetArray(addr)
394 for _, w := range whos {
395 who, _ := w.(string)
396 if who != "" {
397 a = append(a, who)
398 }
399 }
400 }
401 return a
402}
403
404func extractattrto(obj junk.Junk) string {
405 who, _ := obj.GetString("attributedTo")
406 if who != "" {
407 return who
408 }
409 o, ok := obj.GetMap("attributedTo")
410 if ok {
411 id, ok := o.GetString("id")
412 if ok {
413 return id
414 }
415 }
416 arr, _ := obj.GetArray("attributedTo")
417 for _, a := range arr {
418 o, ok := a.(junk.Junk)
419 if ok {
420 t, _ := o.GetString("type")
421 id, _ := o.GetString("id")
422 if t == "Person" || t == "" {
423 return id
424 }
425 }
426 }
427 return ""
428}
429
430func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
431 xonk := xonkxonk(user, j, origin)
432 if xonk != nil {
433 savexonk(xonk)
434 }
435}
436
437func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
438 depth := 0
439 maxdepth := 10
440 currenttid := ""
441 var xonkxonkfn func(item junk.Junk, origin string) *Honk
442
443 saveoneup := func(xid string) {
444 log.Printf("getting oneup: %s", xid)
445 if depth >= maxdepth {
446 log.Printf("in too deep")
447 return
448 }
449 obj, err := GetJunkHardMode(xid)
450 if err != nil {
451 log.Printf("error getting oneup: %s: %s", xid, err)
452 return
453 }
454 depth++
455 xonk := xonkxonkfn(obj, originate(xid))
456 if xonk != nil {
457 savexonk(xonk)
458 }
459 depth--
460 }
461
462 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
463 // id, _ := item.GetString( "id")
464 what, _ := item.GetString("type")
465 dt, _ := item.GetString("published")
466
467 var audience []string
468 var err error
469 var xid, rid, url, content, precis, convoy, oonker string
470 var obj junk.Junk
471 var ok bool
472 isUpdate := false
473 switch what {
474 case "Announce":
475 obj, ok = item.GetMap("object")
476 if ok {
477 xid, _ = obj.GetString("id")
478 } else {
479 xid, _ = item.GetString("object")
480 }
481 if !needxonkid(user, xid) {
482 return nil
483 }
484 log.Printf("getting bonk: %s", xid)
485 obj, err = GetJunkHardMode(xid)
486 if err != nil {
487 log.Printf("error getting bonk: %s: %s", xid, err)
488 }
489 origin = originate(xid)
490 what = "bonk"
491 case "Update":
492 isUpdate = true
493 fallthrough
494 case "Create":
495 obj, ok = item.GetMap("object")
496 if !ok {
497 xid, _ = item.GetString("object")
498 log.Printf("getting created honk: %s", xid)
499 obj, err = GetJunkHardMode(xid)
500 if err != nil {
501 log.Printf("error getting creation: %s", err)
502 }
503 }
504 what = "honk"
505 case "Delete":
506 obj, _ = item.GetMap("object")
507 xid, _ = item.GetString("object")
508 what = "eradicate"
509 case "Read":
510 xid, ok = item.GetString("object")
511 if ok {
512 if !needxonkid(user, xid) {
513 log.Printf("don't need read obj: %s", xid)
514 return nil
515 }
516 obj, err = GetJunkHardMode(xid)
517 if err != nil {
518 log.Printf("error getting read: %s", err)
519 return nil
520 }
521 return xonkxonkfn(obj, originate(xid))
522 }
523 return nil
524 case "Video":
525 fallthrough
526 case "Question":
527 fallthrough
528 case "Note":
529 fallthrough
530 case "Article":
531 fallthrough
532 case "Page":
533 obj = item
534 what = "honk"
535 default:
536 log.Printf("unknown activity: %s", what)
537 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
538 item.Write(fd)
539 io.WriteString(fd, "\n")
540 fd.Close()
541 return nil
542 }
543
544 var xonk Honk
545 who, _ := item.GetString("actor")
546 if obj != nil {
547 if who == "" {
548 who = extractattrto(obj)
549 }
550 oonker = extractattrto(obj)
551 ot, _ := obj.GetString("type")
552 url, _ = obj.GetString("url")
553 dt2, ok := obj.GetString("published")
554 if ok {
555 dt = dt2
556 }
557 if ot == "Tombstone" {
558 xid, _ = obj.GetString("id")
559 } else {
560 audience = newphone(audience, obj)
561 xid, _ = obj.GetString("id")
562 precis, _ = obj.GetString("summary")
563 if precis == "" {
564 precis, _ = obj.GetString("name")
565 }
566 content, _ = obj.GetString("content")
567 if !strings.HasPrefix(content, "<p>") {
568 content = "<p>" + content
569 }
570 sens, _ := obj["sensitive"].(bool)
571 if sens && precis == "" {
572 precis = "unspecified horror"
573 }
574 rid, ok = obj.GetString("inReplyTo")
575 if !ok {
576 robj, ok := obj.GetMap("inReplyTo")
577 if ok {
578 rid, _ = robj.GetString("id")
579 }
580 }
581 convoy, _ = obj.GetString("context")
582 if strings.HasSuffix(convoy, "#context") &&
583 originate(convoy) != originate(xid) {
584 // friendica...
585 convoy = ""
586 }
587 if convoy == "" {
588 convoy, _ = obj.GetString("conversation")
589 }
590 if ot == "Question" {
591 if what == "honk" {
592 what = "qonk"
593 }
594 content += "<ul>"
595 ans, _ := obj.GetArray("oneOf")
596 for _, ai := range ans {
597 a, ok := ai.(junk.Junk)
598 if !ok {
599 continue
600 }
601 as, _ := a.GetString("name")
602 content += "<li>" + as
603 }
604 ans, _ = obj.GetArray("anyOf")
605 for _, ai := range ans {
606 a, ok := ai.(junk.Junk)
607 if !ok {
608 continue
609 }
610 as, _ := a.GetString("name")
611 content += "<li>" + as
612 }
613 content += "</ul>"
614 }
615 if what == "honk" && rid != "" {
616 what = "tonk"
617 }
618 }
619 atts, _ := obj.GetArray("attachment")
620 for i, atti := range atts {
621 att, ok := atti.(junk.Junk)
622 if !ok {
623 continue
624 }
625 at, _ := att.GetString("type")
626 mt, _ := att.GetString("mediaType")
627 u, _ := att.GetString("url")
628 name, _ := att.GetString("name")
629 desc, _ := att.GetString("summary")
630 if desc == "" {
631 desc = name
632 }
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, desc, 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 desc, _ := tag.GetString("summary")
659 if desc == "" {
660 desc = name
661 }
662 if tt == "Emoji" {
663 icon, _ := tag.GetMap("icon")
664 mt, _ := icon.GetString("mediaType")
665 if mt == "" {
666 mt = "image/png"
667 }
668 u, _ := icon.GetString("url")
669 donk := savedonk(u, name, desc, mt, true)
670 if donk != nil {
671 xonk.Donks = append(xonk.Donks, donk)
672 }
673 }
674 if tt == "Hashtag" {
675 if len(name) > 1 && name[0] == '#' {
676 xonk.Onts = append(xonk.Onts, name)
677 } else {
678 log.Printf("bogus hashtag name: %s", name)
679 }
680 }
681 }
682 xonk.Onts = oneofakind(xonk.Onts)
683 }
684 if originate(xid) != origin {
685 log.Printf("original sin: %s <> %s", xid, origin)
686 item.Write(os.Stdout)
687 return nil
688 }
689 audience = append(audience, who)
690
691 audience = oneofakind(audience)
692
693 if currenttid == "" {
694 currenttid = convoy
695 }
696
697 if oonker == who {
698 oonker = ""
699 }
700 // init xonk
701 xonk.UserID = user.ID
702 xonk.What = what
703 xonk.Honker = who
704 xonk.XID = xid
705 xonk.RID = rid
706 xonk.Date, _ = time.Parse(time.RFC3339, dt)
707 xonk.URL = url
708 xonk.Noise = content
709 xonk.Precis = precis
710 xonk.Audience = audience
711 xonk.Oonker = oonker
712 xonk.Format = "html"
713 for _, a := range audience {
714 if a == user.URL {
715 xonk.Whofore = 1
716 }
717 }
718
719 if isUpdate {
720 log.Printf("something has changed! %s", xonk.XID)
721 prev := getxonk(user.ID, xonk.XID)
722 if prev == nil {
723 log.Printf("didn't find old version for update: %s", xonk.XID)
724 return nil
725 }
726 prev.Noise = xonk.Noise
727 prev.Precis = xonk.Precis
728 prev.Date = xonk.Date
729 prev.Donks = xonk.Donks
730 prev.Onts = xonk.Onts
731 updatehonk(prev)
732 return nil
733 }
734
735 if needxonk(user, &xonk) {
736 if rid != "" {
737 if needxonkid(user, rid) {
738 saveoneup(rid)
739 }
740 if convoy == "" {
741 xx := getxonk(user.ID, rid)
742 if xx != nil {
743 convoy = xx.Convoy
744 }
745 }
746 }
747 if convoy == "" {
748 convoy = currenttid
749 }
750 xonk.Convoy = convoy
751 return &xonk
752 }
753 return nil
754 }
755
756 return xonkxonkfn(item, origin)
757}
758
759func rubadubdub(user *WhatAbout, req junk.Junk) {
760 xid, _ := req.GetString("id")
761 actor, _ := req.GetString("actor")
762 j := junk.New()
763 j["@context"] = itiswhatitis
764 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
765 j["type"] = "Accept"
766 j["actor"] = user.URL
767 j["to"] = actor
768 j["published"] = time.Now().UTC().Format(time.RFC3339)
769 j["object"] = req
770
771 var buf bytes.Buffer
772 j.Write(&buf)
773 msg := buf.Bytes()
774
775 deliverate(0, user.Name, actor, msg)
776}
777
778func itakeitallback(user *WhatAbout, xid string) {
779 j := junk.New()
780 j["@context"] = itiswhatitis
781 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
782 j["type"] = "Undo"
783 j["actor"] = user.URL
784 j["to"] = xid
785 f := junk.New()
786 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
787 f["type"] = "Follow"
788 f["actor"] = user.URL
789 f["to"] = xid
790 f["object"] = xid
791 j["object"] = f
792 j["published"] = time.Now().UTC().Format(time.RFC3339)
793
794 var buf bytes.Buffer
795 j.Write(&buf)
796 msg := buf.Bytes()
797
798 deliverate(0, user.Name, xid, msg)
799}
800
801func subsub(user *WhatAbout, xid string) {
802 j := junk.New()
803 j["@context"] = itiswhatitis
804 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
805 j["type"] = "Follow"
806 j["actor"] = user.URL
807 j["to"] = xid
808 j["object"] = xid
809 j["published"] = time.Now().UTC().Format(time.RFC3339)
810
811 var buf bytes.Buffer
812 j.Write(&buf)
813 msg := buf.Bytes()
814
815 deliverate(0, user.Name, xid, msg)
816}
817
818// returns activity, object
819func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
820 dt := h.Date.Format(time.RFC3339)
821 var jo junk.Junk
822 j := junk.New()
823 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
824 j["actor"] = user.URL
825 j["published"] = dt
826 if h.Public {
827 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
828 } else {
829 j["to"] = h.Audience[0]
830 }
831 if len(h.Audience) > 1 {
832 j["cc"] = h.Audience[1:]
833 }
834
835 switch h.What {
836 case "update":
837 fallthrough
838 case "tonk":
839 fallthrough
840 case "honk":
841 if h.What == "update" {
842 j["type"] = "Update"
843 } else {
844 j["type"] = "Create"
845 }
846
847 jo = junk.New()
848 jo["id"] = h.XID
849 jo["type"] = "Note"
850 jo["published"] = dt
851 jo["url"] = h.XID
852 jo["attributedTo"] = user.URL
853 if h.RID != "" {
854 jo["inReplyTo"] = h.RID
855 }
856 if h.Convoy != "" {
857 jo["context"] = h.Convoy
858 jo["conversation"] = h.Convoy
859 }
860 jo["to"] = h.Audience[0]
861 if len(h.Audience) > 1 {
862 jo["cc"] = h.Audience[1:]
863 }
864 if !h.Public {
865 jo["directMessage"] = true
866 }
867 translate(h)
868 h.Noise = re_memes.ReplaceAllString(h.Noise, "")
869 jo["summary"] = h.Precis
870 jo["content"] = ontologize(mentionize(h.Noise))
871 if strings.HasPrefix(h.Precis, "DZ:") {
872 jo["sensitive"] = true
873 }
874
875 var replies []string
876 for _, reply := range h.Replies {
877 replies = append(replies, reply.XID)
878 }
879 if len(replies) > 0 {
880 jr := junk.New()
881 jr["type"] = "Collection"
882 jr["totalItems"] = len(replies)
883 jr["items"] = replies
884 jo["replies"] = jr
885 }
886
887 var tags []junk.Junk
888 g := bunchofgrapes(h.Noise)
889 for _, m := range g {
890 t := junk.New()
891 t["type"] = "Mention"
892 t["name"] = m.who
893 t["href"] = m.where
894 tags = append(tags, t)
895 }
896 for _, o := range h.Onts {
897 t := junk.New()
898 t["type"] = "Hashtag"
899 o = strings.ToLower(o)
900 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
901 t["name"] = o
902 tags = append(tags, t)
903 }
904 herd := herdofemus(h.Noise)
905 for _, e := range herd {
906 t := junk.New()
907 t["id"] = e.ID
908 t["type"] = "Emoji"
909 t["name"] = e.Name
910 i := junk.New()
911 i["type"] = "Image"
912 i["mediaType"] = "image/png"
913 i["url"] = e.ID
914 t["icon"] = i
915 tags = append(tags, t)
916 }
917 if len(tags) > 0 {
918 jo["tag"] = tags
919 }
920 var atts []junk.Junk
921 for _, d := range h.Donks {
922 if re_emus.MatchString(d.Name) {
923 continue
924 }
925 jd := junk.New()
926 jd["mediaType"] = d.Media
927 jd["name"] = d.Name
928 jd["summary"] = d.Desc
929 jd["type"] = "Document"
930 jd["url"] = d.URL
931 atts = append(atts, jd)
932 }
933 if len(atts) > 0 {
934 jo["attachment"] = atts
935 }
936 j["object"] = jo
937 case "bonk":
938 j["type"] = "Announce"
939 if h.Convoy != "" {
940 j["context"] = h.Convoy
941 }
942 j["object"] = h.XID
943 case "unbonk":
944 b := junk.New()
945 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
946 b["type"] = "Announce"
947 b["actor"] = user.URL
948 if h.Convoy != "" {
949 b["context"] = h.Convoy
950 }
951 b["object"] = h.XID
952 j["type"] = "Undo"
953 j["object"] = b
954 case "zonk":
955 j["type"] = "Delete"
956 j["object"] = h.XID
957 case "ack":
958 j["type"] = "Read"
959 j["object"] = h.XID
960 case "deack":
961 b := junk.New()
962 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
963 b["type"] = "Read"
964 b["actor"] = user.URL
965 b["object"] = h.XID
966 j["type"] = "Undo"
967 j["object"] = b
968 }
969
970 return j, jo
971}
972
973func honkworldwide(user *WhatAbout, honk *Honk) {
974 jonk, _ := jonkjonk(user, honk)
975 jonk["@context"] = itiswhatitis
976 var buf bytes.Buffer
977 jonk.Write(&buf)
978 msg := buf.Bytes()
979
980 rcpts := make(map[string]bool)
981 for _, a := range honk.Audience {
982 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
983 box, _ := getboxes(a)
984 if box != nil && honk.Public && box.Shared != "" {
985 rcpts["%"+box.Shared] = true
986 } else {
987 rcpts[a] = true
988 }
989 }
990 }
991 if honk.Public {
992 for _, f := range getdubs(user.ID) {
993 box, _ := getboxes(f.XID)
994 if box != nil && box.Shared != "" {
995 rcpts["%"+box.Shared] = true
996 } else {
997 rcpts[f.XID] = true
998 }
999 }
1000 }
1001 for a := range rcpts {
1002 go deliverate(0, user.Name, a, msg)
1003 }
1004}
1005
1006func asjonker(user *WhatAbout) junk.Junk {
1007 about := obfusbreak(user.About)
1008
1009 j := junk.New()
1010 j["@context"] = itiswhatitis
1011 j["id"] = user.URL
1012 j["type"] = "Person"
1013 j["inbox"] = user.URL + "/inbox"
1014 j["outbox"] = user.URL + "/outbox"
1015 j["followers"] = user.URL + "/followers"
1016 j["following"] = user.URL + "/following"
1017 j["name"] = user.Display
1018 j["preferredUsername"] = user.Name
1019 j["summary"] = about
1020 j["url"] = user.URL
1021 a := junk.New()
1022 a["type"] = "Image"
1023 a["mediaType"] = "image/png"
1024 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1025 j["icon"] = a
1026 k := junk.New()
1027 k["id"] = user.URL + "#key"
1028 k["owner"] = user.URL
1029 k["publicKeyPem"] = user.Key
1030 j["publicKey"] = k
1031
1032 return j
1033}
1034
1035var handfull = make(map[string]string)
1036var handlock sync.Mutex
1037
1038func gofish(name string) string {
1039 if name[0] == '@' {
1040 name = name[1:]
1041 }
1042 m := strings.Split(name, "@")
1043 if len(m) != 2 {
1044 log.Printf("bad fish name: %s", name)
1045 return ""
1046 }
1047 handlock.Lock()
1048 ref, ok := handfull[name]
1049 handlock.Unlock()
1050 if ok {
1051 return ref
1052 }
1053 row := stmtGetXonker.QueryRow(name, "fishname")
1054 var href string
1055 err := row.Scan(&href)
1056 if err == nil {
1057 handlock.Lock()
1058 handfull[name] = href
1059 handlock.Unlock()
1060 return href
1061 }
1062 log.Printf("fishing for %s", name)
1063 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1064 if err != nil {
1065 log.Printf("failed to go fish %s: %s", name, err)
1066 handlock.Lock()
1067 handfull[name] = ""
1068 handlock.Unlock()
1069 return ""
1070 }
1071 links, _ := j.GetArray("links")
1072 for _, li := range links {
1073 l, ok := li.(junk.Junk)
1074 if !ok {
1075 continue
1076 }
1077 href, _ := l.GetString("href")
1078 rel, _ := l.GetString("rel")
1079 t, _ := l.GetString("type")
1080 if rel == "self" && friendorfoe(t) {
1081 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1082 if err != nil {
1083 log.Printf("error saving fishname: %s", err)
1084 }
1085 handlock.Lock()
1086 handfull[name] = href
1087 handlock.Unlock()
1088 return href
1089 }
1090 }
1091 handlock.Lock()
1092 handfull[name] = ""
1093 handlock.Unlock()
1094 return ""
1095}
1096
1097func isactor(t string) bool {
1098 switch t {
1099 case "Person":
1100 case "Organization":
1101 case "Application":
1102 case "Service":
1103 default:
1104 return false
1105 }
1106 return true
1107}
1108
1109func investigate(name string) (*Honker, error) {
1110 if name == "" {
1111 return nil, fmt.Errorf("no name")
1112 }
1113 if name[0] == '@' {
1114 name = gofish(name)
1115 }
1116 if name == "" {
1117 return nil, fmt.Errorf("no name")
1118 }
1119 log.Printf("digging up some info on %s", name)
1120 obj, err := GetJunkFast(name)
1121 if err != nil {
1122 log.Printf("error investigating honker: %s", err)
1123 return nil, err
1124 }
1125 t, _ := obj.GetString("type")
1126 if !isactor(t) {
1127 log.Printf("it's not a person! %s", name)
1128 return nil, err
1129 }
1130 xid, _ := obj.GetString("id")
1131 handle, _ := obj.GetString("preferredUsername")
1132 return &Honker{XID: xid, Handle: handle}, nil
1133}