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 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, desc, 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 thoudostbitethythumb(user.ID, nil, xid) {
213 log.Printf("don't need thumb biter? %s", xid)
214 return false
215 }
216 if iszonked(user.ID, xid) {
217 log.Printf("already zonked: %s", xid)
218 return false
219 }
220 row := stmtFindXonk.QueryRow(user.ID, xid)
221 var id int64
222 err := row.Scan(&id)
223 if err == nil {
224 return false
225 }
226 if err != sql.ErrNoRows {
227 log.Printf("err querying xonk: %s", err)
228 }
229 return true
230}
231
232func savexonk(x *Honk) {
233 if x.What == "eradicate" {
234 log.Printf("eradicating %s by %s", x.XID, x.Honker)
235 xonk := getxonk(x.UserID, x.XID)
236 if xonk != nil {
237 deletehonk(xonk.ID)
238 }
239 _, err := stmtSaveZonker.Exec(x.UserID, x.XID, "zonk")
240 if err != nil {
241 log.Printf("error eradicating: %s", err)
242 }
243 return
244 }
245 log.Printf("saving xonk: %s", x.XID)
246 go prehandle(x.Honker)
247 go prehandle(x.Oonker)
248 savehonk(x)
249}
250
251type Box struct {
252 In string
253 Out string
254 Shared string
255}
256
257var boxofboxes = make(map[string]*Box)
258var boxlock sync.Mutex
259var boxinglock sync.Mutex
260
261func getboxes(ident string) (*Box, error) {
262 boxlock.Lock()
263 b, ok := boxofboxes[ident]
264 boxlock.Unlock()
265 if ok {
266 return b, nil
267 }
268
269 boxinglock.Lock()
270 defer boxinglock.Unlock()
271
272 boxlock.Lock()
273 b, ok = boxofboxes[ident]
274 boxlock.Unlock()
275 if ok {
276 return b, nil
277 }
278
279 var info string
280 row := stmtGetXonker.QueryRow(ident, "boxes")
281 err := row.Scan(&info)
282 if err != nil {
283 j, err := GetJunk(ident)
284 if err != nil {
285 return nil, err
286 }
287 inbox, _ := j.GetString("inbox")
288 outbox, _ := j.GetString("outbox")
289 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
290 b = &Box{In: inbox, Out: outbox, Shared: sbox}
291 if inbox != "" {
292 m := strings.Join([]string{inbox, outbox, sbox}, " ")
293 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
294 if err != nil {
295 log.Printf("error saving boxes: %s", err)
296 }
297 }
298 } else {
299 m := strings.Split(info, " ")
300 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
301 }
302
303 boxlock.Lock()
304 boxofboxes[ident] = b
305 boxlock.Unlock()
306 return b, nil
307}
308
309func gimmexonks(user *WhatAbout, outbox string) {
310 log.Printf("getting outbox: %s", outbox)
311 j, err := GetJunk(outbox)
312 if err != nil {
313 log.Printf("error getting outbox: %s", err)
314 return
315 }
316 t, _ := j.GetString("type")
317 origin := originate(outbox)
318 if t == "OrderedCollection" {
319 items, _ := j.GetArray("orderedItems")
320 if items == nil {
321 obj, ok := j.GetMap("first")
322 if ok {
323 items, _ = obj.GetArray("orderedItems")
324 } else {
325 page1, _ := j.GetString("first")
326 j, err = GetJunk(page1)
327 if err != nil {
328 log.Printf("error gettings page1: %s", err)
329 return
330 }
331 items, _ = j.GetArray("orderedItems")
332 }
333 }
334 if len(items) > 20 {
335 items = items[0:20]
336 }
337 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
338 items[i], items[j] = items[j], items[i]
339 }
340 for _, item := range items {
341 obj, ok := item.(junk.Junk)
342 if !ok {
343 continue
344 }
345 xonk := xonkxonk(user, obj, origin)
346 if xonk != nil {
347 savexonk(xonk)
348 }
349 }
350 }
351}
352
353func peeppeep() {
354 user, _ := butwhatabout("htest")
355 honkers := gethonkers(user.ID)
356 for _, f := range honkers {
357 if f.Flavor != "peep" {
358 continue
359 }
360 log.Printf("getting updates: %s", f.XID)
361 box, err := getboxes(f.XID)
362 if err != nil {
363 log.Printf("error getting outbox: %s", err)
364 continue
365 }
366 gimmexonks(user, box.Out)
367 }
368}
369func whosthere(xid string) ([]string, string) {
370 obj, err := GetJunk(xid)
371 if err != nil {
372 log.Printf("error getting remote xonk: %s", err)
373 return nil, ""
374 }
375 convoy, _ := obj.GetString("context")
376 if convoy == "" {
377 convoy, _ = obj.GetString("conversation")
378 }
379 return newphone(nil, obj), convoy
380}
381
382func newphone(a []string, obj junk.Junk) []string {
383 for _, addr := range []string{"to", "cc", "attributedTo"} {
384 who, _ := obj.GetString(addr)
385 if who != "" {
386 a = append(a, who)
387 }
388 whos, _ := obj.GetArray(addr)
389 for _, w := range whos {
390 who, _ := w.(string)
391 if who != "" {
392 a = append(a, who)
393 }
394 }
395 }
396 return a
397}
398
399func extractattrto(obj junk.Junk) string {
400 who, _ := obj.GetString("attributedTo")
401 if who != "" {
402 return who
403 }
404 o, ok := obj.GetMap("attributedTo")
405 if ok {
406 id, ok := o.GetString("id")
407 if ok {
408 return id
409 }
410 }
411 arr, _ := obj.GetArray("attributedTo")
412 for _, a := range arr {
413 o, ok := a.(junk.Junk)
414 if ok {
415 t, _ := o.GetString("type")
416 id, _ := o.GetString("id")
417 if t == "Person" || t == "" {
418 return id
419 }
420 }
421 }
422 return ""
423}
424
425func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
426 xonk := xonkxonk(user, j, origin)
427 if xonk != nil {
428 savexonk(xonk)
429 }
430}
431
432func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
433 depth := 0
434 maxdepth := 10
435 currenttid := ""
436 var xonkxonkfn func(item junk.Junk, origin string) *Honk
437
438 saveoneup := func(xid string) {
439 log.Printf("getting oneup: %s", xid)
440 if depth >= maxdepth {
441 log.Printf("in too deep")
442 return
443 }
444 obj, err := GetJunkHardMode(xid)
445 if err != nil {
446 log.Printf("error getting oneup: %s: %s", xid, err)
447 return
448 }
449 depth++
450 xonk := xonkxonkfn(obj, originate(xid))
451 if xonk != nil {
452 savexonk(xonk)
453 }
454 depth--
455 }
456
457 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
458 // id, _ := item.GetString( "id")
459 what, _ := item.GetString("type")
460 dt, _ := item.GetString("published")
461
462 var audience []string
463 var err error
464 var xid, rid, url, content, precis, convoy, oonker string
465 var obj junk.Junk
466 var ok bool
467 isUpdate := false
468 switch what {
469 case "Announce":
470 obj, ok = item.GetMap("object")
471 if ok {
472 xid, _ = obj.GetString("id")
473 } else {
474 xid, _ = item.GetString("object")
475 }
476 if !needxonkid(user, xid) {
477 return nil
478 }
479 log.Printf("getting bonk: %s", xid)
480 obj, err = GetJunkHardMode(xid)
481 if err != nil {
482 log.Printf("error getting bonk: %s: %s", xid, err)
483 }
484 origin = originate(xid)
485 what = "bonk"
486 case "Update":
487 isUpdate = true
488 fallthrough
489 case "Create":
490 obj, ok = item.GetMap("object")
491 if !ok {
492 xid, _ = item.GetString("object")
493 log.Printf("getting created honk: %s", xid)
494 obj, err = GetJunkHardMode(xid)
495 if err != nil {
496 log.Printf("error getting creation: %s", err)
497 }
498 }
499 what = "honk"
500 case "Delete":
501 obj, _ = item.GetMap("object")
502 xid, _ = item.GetString("object")
503 what = "eradicate"
504 case "Read":
505 xid, ok = item.GetString("object")
506 if ok {
507 if !needxonkid(user, xid) {
508 log.Printf("don't need read obj: %s", xid)
509 return nil
510 }
511 obj, err = GetJunkHardMode(xid)
512 if err != nil {
513 log.Printf("error getting read: %s", err)
514 return nil
515 }
516 return xonkxonkfn(obj, originate(xid))
517 }
518 return nil
519 case "Video":
520 fallthrough
521 case "Question":
522 fallthrough
523 case "Note":
524 fallthrough
525 case "Article":
526 fallthrough
527 case "Page":
528 obj = item
529 what = "honk"
530 default:
531 log.Printf("unknown activity: %s", what)
532 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
533 item.Write(fd)
534 io.WriteString(fd, "\n")
535 fd.Close()
536 return nil
537 }
538
539 var xonk Honk
540 who, _ := item.GetString("actor")
541 if obj != nil {
542 if who == "" {
543 who = extractattrto(obj)
544 }
545 oonker = extractattrto(obj)
546 ot, _ := obj.GetString("type")
547 url, _ = obj.GetString("url")
548 if ot == "Tombstone" {
549 xid, _ = obj.GetString("id")
550 } else {
551 audience = newphone(audience, obj)
552 xid, _ = obj.GetString("id")
553 precis, _ = obj.GetString("summary")
554 if precis == "" {
555 precis, _ = obj.GetString("name")
556 }
557 content, _ = obj.GetString("content")
558 if !strings.HasPrefix(content, "<p>") {
559 content = "<p>" + content
560 }
561 sens, _ := obj["sensitive"].(bool)
562 if sens && precis == "" {
563 precis = "unspecified horror"
564 }
565 rid, ok = obj.GetString("inReplyTo")
566 if !ok {
567 robj, ok := obj.GetMap("inReplyTo")
568 if ok {
569 rid, _ = robj.GetString("id")
570 }
571 }
572 convoy, _ = obj.GetString("context")
573 if convoy == "" {
574 convoy, _ = obj.GetString("conversation")
575 }
576 if ot == "Question" {
577 if what == "honk" {
578 what = "qonk"
579 }
580 content += "<ul>"
581 ans, _ := obj.GetArray("oneOf")
582 for _, ai := range ans {
583 a, ok := ai.(junk.Junk)
584 if !ok {
585 continue
586 }
587 as, _ := a.GetString("name")
588 content += "<li>" + as
589 }
590 ans, _ = obj.GetArray("anyOf")
591 for _, ai := range ans {
592 a, ok := ai.(junk.Junk)
593 if !ok {
594 continue
595 }
596 as, _ := a.GetString("name")
597 content += "<li>" + as
598 }
599 content += "</ul>"
600 }
601 if what == "honk" && rid != "" {
602 what = "tonk"
603 }
604 }
605 atts, _ := obj.GetArray("attachment")
606 for i, atti := range atts {
607 att, ok := atti.(junk.Junk)
608 if !ok {
609 continue
610 }
611 at, _ := att.GetString("type")
612 mt, _ := att.GetString("mediaType")
613 u, _ := att.GetString("url")
614 name, _ := att.GetString("name")
615 desc, _ := att.GetString("summary")
616 if desc == "" {
617 desc = name
618 }
619 localize := false
620 if i > 4 {
621 log.Printf("excessive attachment: %s", at)
622 } else if at == "Document" || at == "Image" {
623 mt = strings.ToLower(mt)
624 log.Printf("attachment: %s %s", mt, u)
625 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
626 localize = true
627 }
628 } else {
629 log.Printf("unknown attachment: %s", at)
630 }
631 log.Printf("saving a donk: %s is %s", name, desc)
632 donk := savedonk(u, name, desc, mt, localize)
633 if donk != nil {
634 xonk.Donks = append(xonk.Donks, donk)
635 }
636 }
637 tags, _ := obj.GetArray("tag")
638 for _, tagi := range tags {
639 tag, ok := tagi.(junk.Junk)
640 if !ok {
641 continue
642 }
643 tt, _ := tag.GetString("type")
644 name, _ := tag.GetString("name")
645 desc, _ := tag.GetString("summary")
646 if desc == "" {
647 desc = name
648 }
649 if tt == "Emoji" {
650 icon, _ := tag.GetMap("icon")
651 mt, _ := icon.GetString("mediaType")
652 if mt == "" {
653 mt = "image/png"
654 }
655 u, _ := icon.GetString("url")
656 donk := savedonk(u, name, desc, mt, true)
657 if donk != nil {
658 xonk.Donks = append(xonk.Donks, donk)
659 }
660 }
661 if tt == "Hashtag" {
662 xonk.Onts = append(xonk.Onts, name)
663 }
664 }
665 xonk.Onts = oneofakind(xonk.Onts)
666 }
667 if originate(xid) != origin {
668 log.Printf("original sin: %s <> %s", xid, origin)
669 item.Write(os.Stdout)
670 return nil
671 }
672 audience = append(audience, who)
673
674 audience = oneofakind(audience)
675
676 if currenttid == "" {
677 currenttid = convoy
678 }
679
680 if oonker == who {
681 oonker = ""
682 }
683 // init xonk
684 xonk.UserID = user.ID
685 xonk.What = what
686 xonk.Honker = who
687 xonk.XID = xid
688 xonk.RID = rid
689 xonk.Date, _ = time.Parse(time.RFC3339, dt)
690 xonk.URL = url
691 xonk.Noise = content
692 xonk.Precis = precis
693 xonk.Audience = audience
694 xonk.Oonker = oonker
695 xonk.Format = "html"
696 for _, a := range audience {
697 if a == user.URL {
698 xonk.Whofore = 1
699 }
700 }
701
702 if isUpdate {
703 log.Printf("something has changed! %s", xonk.XID)
704 prev := getxonk(user.ID, xonk.XID)
705 if prev == nil {
706 log.Printf("didn't find old version for update: %s", xonk.XID)
707 return nil
708 }
709 prev.Noise = xonk.Noise
710 prev.Precis = xonk.Precis
711 prev.Date = xonk.Date
712 updatehonk(prev)
713 return nil
714 }
715
716 if needxonk(user, &xonk) {
717 if rid != "" {
718 if needxonkid(user, rid) {
719 saveoneup(rid)
720 }
721 }
722 if convoy == "" {
723 convoy = currenttid
724 }
725 xonk.Convoy = convoy
726 return &xonk
727 }
728 return nil
729 }
730
731 return xonkxonkfn(item, origin)
732}
733
734func rubadubdub(user *WhatAbout, req junk.Junk) {
735 xid, _ := req.GetString("id")
736 actor, _ := req.GetString("actor")
737 j := junk.New()
738 j["@context"] = itiswhatitis
739 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
740 j["type"] = "Accept"
741 j["actor"] = user.URL
742 j["to"] = actor
743 j["published"] = time.Now().UTC().Format(time.RFC3339)
744 j["object"] = req
745
746 var buf bytes.Buffer
747 j.Write(&buf)
748 msg := buf.Bytes()
749
750 deliverate(0, user.Name, actor, msg)
751}
752
753func itakeitallback(user *WhatAbout, xid string) {
754 j := junk.New()
755 j["@context"] = itiswhatitis
756 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
757 j["type"] = "Undo"
758 j["actor"] = user.URL
759 j["to"] = xid
760 f := junk.New()
761 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
762 f["type"] = "Follow"
763 f["actor"] = user.URL
764 f["to"] = xid
765 f["object"] = xid
766 j["object"] = f
767 j["published"] = time.Now().UTC().Format(time.RFC3339)
768
769 var buf bytes.Buffer
770 j.Write(&buf)
771 msg := buf.Bytes()
772
773 deliverate(0, user.Name, xid, msg)
774}
775
776func subsub(user *WhatAbout, xid string) {
777 j := junk.New()
778 j["@context"] = itiswhatitis
779 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
780 j["type"] = "Follow"
781 j["actor"] = user.URL
782 j["to"] = xid
783 j["object"] = xid
784 j["published"] = time.Now().UTC().Format(time.RFC3339)
785
786 var buf bytes.Buffer
787 j.Write(&buf)
788 msg := buf.Bytes()
789
790 deliverate(0, user.Name, xid, msg)
791}
792
793func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
794 dt := h.Date.Format(time.RFC3339)
795 var jo junk.Junk
796 j := junk.New()
797 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
798 j["actor"] = user.URL
799 j["published"] = dt
800 if h.Public {
801 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
802 } else {
803 j["to"] = h.Audience[0]
804 }
805 if len(h.Audience) > 1 {
806 j["cc"] = h.Audience[1:]
807 }
808
809 switch h.What {
810 case "update":
811 fallthrough
812 case "tonk":
813 fallthrough
814 case "honk":
815 if h.What == "update" {
816 j["type"] = "Update"
817 } else {
818 j["type"] = "Create"
819 }
820
821 jo = junk.New()
822 jo["id"] = h.XID
823 jo["type"] = "Note"
824 jo["published"] = dt
825 jo["url"] = h.XID
826 jo["attributedTo"] = user.URL
827 if h.RID != "" {
828 jo["inReplyTo"] = h.RID
829 }
830 if h.Convoy != "" {
831 jo["context"] = h.Convoy
832 jo["conversation"] = h.Convoy
833 }
834 jo["to"] = h.Audience[0]
835 if len(h.Audience) > 1 {
836 jo["cc"] = h.Audience[1:]
837 }
838 if !h.Public {
839 jo["directMessage"] = true
840 }
841 jo["summary"] = h.Precis
842 jo["content"] = ontologize(mentionize(h.Noise))
843 if strings.HasPrefix(h.Precis, "DZ:") {
844 jo["sensitive"] = true
845 }
846
847 var replies []string
848 for _, reply := range h.Replies {
849 replies = append(replies, reply.XID)
850 }
851 if len(replies) > 0 {
852 jr := junk.New()
853 jr["type"] = "Collection"
854 jr["totalItems"] = len(replies)
855 jr["items"] = replies
856 jo["replies"] = jr
857 }
858
859 var tags []junk.Junk
860 g := bunchofgrapes(h.Noise)
861 for _, m := range g {
862 t := junk.New()
863 t["type"] = "Mention"
864 t["name"] = m.who
865 t["href"] = m.where
866 tags = append(tags, t)
867 }
868 for _, o := range h.Onts {
869 t := junk.New()
870 t["type"] = "Hashtag"
871 o = strings.ToLower(o)
872 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
873 t["name"] = o
874 tags = append(tags, t)
875 }
876 herd := herdofemus(h.Noise)
877 for _, e := range herd {
878 t := junk.New()
879 t["id"] = e.ID
880 t["type"] = "Emoji"
881 t["name"] = e.Name
882 i := junk.New()
883 i["type"] = "Image"
884 i["mediaType"] = "image/png"
885 i["url"] = e.ID
886 t["icon"] = i
887 tags = append(tags, t)
888 }
889 if len(tags) > 0 {
890 jo["tag"] = tags
891 }
892 var atts []junk.Junk
893 for _, d := range h.Donks {
894 if re_emus.MatchString(d.Name) {
895 continue
896 }
897 jd := junk.New()
898 jd["mediaType"] = d.Media
899 jd["name"] = d.Name
900 jd["summary"] = d.Desc
901 jd["type"] = "Document"
902 jd["url"] = d.URL
903 atts = append(atts, jd)
904 }
905 if len(atts) > 0 {
906 jo["attachment"] = atts
907 }
908 j["object"] = jo
909 case "bonk":
910 j["type"] = "Announce"
911 if h.Convoy != "" {
912 j["context"] = h.Convoy
913 }
914 j["object"] = h.XID
915 case "unbonk":
916 b := junk.New()
917 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
918 b["type"] = "Announce"
919 if h.Convoy != "" {
920 b["context"] = h.Convoy
921 }
922 b["object"] = h.XID
923 j["type"] = "Undo"
924 j["object"] = b
925 case "zonk":
926 j["type"] = "Delete"
927 j["object"] = h.XID
928 case "ack":
929 j["type"] = "Read"
930 j["object"] = h.XID
931 case "deack":
932 j["type"] = "Ignore"
933 j["object"] = h.XID
934 }
935
936 return j, jo
937}
938
939func honkworldwide(user *WhatAbout, honk *Honk) {
940 jonk, _ := jonkjonk(user, honk)
941 jonk["@context"] = itiswhatitis
942 var buf bytes.Buffer
943 jonk.Write(&buf)
944 msg := buf.Bytes()
945
946 rcpts := make(map[string]bool)
947 for _, a := range honk.Audience {
948 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
949 box, _ := getboxes(a)
950 if box != nil && honk.Public && box.Shared != "" {
951 rcpts["%"+box.Shared] = true
952 } else {
953 rcpts[a] = true
954 }
955 }
956 }
957 if honk.Public {
958 for _, f := range getdubs(user.ID) {
959 box, _ := getboxes(f.XID)
960 if box != nil && box.Shared != "" {
961 rcpts["%"+box.Shared] = true
962 } else {
963 rcpts[f.XID] = true
964 }
965 }
966 }
967 for a := range rcpts {
968 go deliverate(0, user.Name, a, msg)
969 }
970}
971
972func asjonker(user *WhatAbout) junk.Junk {
973 about := obfusbreak(user.About)
974
975 j := junk.New()
976 j["@context"] = itiswhatitis
977 j["id"] = user.URL
978 j["type"] = "Person"
979 j["inbox"] = user.URL + "/inbox"
980 j["outbox"] = user.URL + "/outbox"
981 j["followers"] = user.URL + "/followers"
982 j["following"] = user.URL + "/following"
983 j["name"] = user.Display
984 j["preferredUsername"] = user.Name
985 j["summary"] = about
986 j["url"] = user.URL
987 a := junk.New()
988 a["type"] = "Image"
989 a["mediaType"] = "image/png"
990 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
991 j["icon"] = a
992 k := junk.New()
993 k["id"] = user.URL + "#key"
994 k["owner"] = user.URL
995 k["publicKeyPem"] = user.Key
996 j["publicKey"] = k
997
998 return j
999}
1000
1001var handfull = make(map[string]string)
1002var handlock sync.Mutex
1003
1004func gofish(name string) string {
1005 if name[0] == '@' {
1006 name = name[1:]
1007 }
1008 m := strings.Split(name, "@")
1009 if len(m) != 2 {
1010 log.Printf("bad fish name: %s", name)
1011 return ""
1012 }
1013 handlock.Lock()
1014 ref, ok := handfull[name]
1015 handlock.Unlock()
1016 if ok {
1017 return ref
1018 }
1019 row := stmtGetXonker.QueryRow(name, "fishname")
1020 var href string
1021 err := row.Scan(&href)
1022 if err == nil {
1023 handlock.Lock()
1024 handfull[name] = href
1025 handlock.Unlock()
1026 return href
1027 }
1028 log.Printf("fishing for %s", name)
1029 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1030 if err != nil {
1031 log.Printf("failed to go fish %s: %s", name, err)
1032 handlock.Lock()
1033 handfull[name] = ""
1034 handlock.Unlock()
1035 return ""
1036 }
1037 links, _ := j.GetArray("links")
1038 for _, li := range links {
1039 l, ok := li.(junk.Junk)
1040 if !ok {
1041 continue
1042 }
1043 href, _ := l.GetString("href")
1044 rel, _ := l.GetString("rel")
1045 t, _ := l.GetString("type")
1046 if rel == "self" && friendorfoe(t) {
1047 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1048 if err != nil {
1049 log.Printf("error saving fishname: %s", err)
1050 }
1051 handlock.Lock()
1052 handfull[name] = href
1053 handlock.Unlock()
1054 return href
1055 }
1056 }
1057 handlock.Lock()
1058 handfull[name] = ""
1059 handlock.Unlock()
1060 return ""
1061}
1062
1063func isactor(t string) bool {
1064 switch t {
1065 case "Person":
1066 case "Organization":
1067 case "Application":
1068 case "Service":
1069 default:
1070 return false
1071 }
1072 return true
1073}
1074
1075func investigate(name string) (*Honker, error) {
1076 if name == "" {
1077 return nil, fmt.Errorf("no name")
1078 }
1079 if name[0] == '@' {
1080 name = gofish(name)
1081 }
1082 if name == "" {
1083 return nil, fmt.Errorf("no name")
1084 }
1085 log.Printf("digging up some info on %s", name)
1086 obj, err := GetJunkFast(name)
1087 if err != nil {
1088 log.Printf("error investigating honker: %s", err)
1089 return nil, err
1090 }
1091 t, _ := obj.GetString("type")
1092 if !isactor(t) {
1093 log.Printf("it's not a person! %s", name)
1094 return nil, err
1095 }
1096 xid, _ := obj.GetString("id")
1097 handle, _ := obj.GetString("preferredUsername")
1098 return &Honker{XID: xid, Handle: handle}, nil
1099}