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 if len(name) > 1 && name[0] == '#' {
663 xonk.Onts = append(xonk.Onts, name)
664 } else {
665 log.Printf("bogus hashtag name: %s", name)
666 }
667 }
668 }
669 xonk.Onts = oneofakind(xonk.Onts)
670 }
671 if originate(xid) != origin {
672 log.Printf("original sin: %s <> %s", xid, origin)
673 item.Write(os.Stdout)
674 return nil
675 }
676 audience = append(audience, who)
677
678 audience = oneofakind(audience)
679
680 if currenttid == "" {
681 currenttid = convoy
682 }
683
684 if oonker == who {
685 oonker = ""
686 }
687 // init xonk
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 xonk.Format = "html"
700 for _, a := range audience {
701 if a == user.URL {
702 xonk.Whofore = 1
703 }
704 }
705
706 if isUpdate {
707 log.Printf("something has changed! %s", xonk.XID)
708 prev := getxonk(user.ID, xonk.XID)
709 if prev == nil {
710 log.Printf("didn't find old version for update: %s", xonk.XID)
711 return nil
712 }
713 prev.Noise = xonk.Noise
714 prev.Precis = xonk.Precis
715 prev.Date = xonk.Date
716 prev.Donks = xonk.Donks
717 prev.Onts = xonk.Onts
718 updatehonk(prev)
719 return nil
720 }
721
722 if needxonk(user, &xonk) {
723 if rid != "" {
724 if needxonkid(user, rid) {
725 saveoneup(rid)
726 }
727 }
728 if convoy == "" {
729 convoy = currenttid
730 }
731 xonk.Convoy = convoy
732 return &xonk
733 }
734 return nil
735 }
736
737 return xonkxonkfn(item, origin)
738}
739
740func rubadubdub(user *WhatAbout, req junk.Junk) {
741 xid, _ := req.GetString("id")
742 actor, _ := req.GetString("actor")
743 j := junk.New()
744 j["@context"] = itiswhatitis
745 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
746 j["type"] = "Accept"
747 j["actor"] = user.URL
748 j["to"] = actor
749 j["published"] = time.Now().UTC().Format(time.RFC3339)
750 j["object"] = req
751
752 var buf bytes.Buffer
753 j.Write(&buf)
754 msg := buf.Bytes()
755
756 deliverate(0, user.Name, actor, msg)
757}
758
759func itakeitallback(user *WhatAbout, xid string) {
760 j := junk.New()
761 j["@context"] = itiswhatitis
762 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
763 j["type"] = "Undo"
764 j["actor"] = user.URL
765 j["to"] = xid
766 f := junk.New()
767 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
768 f["type"] = "Follow"
769 f["actor"] = user.URL
770 f["to"] = xid
771 f["object"] = xid
772 j["object"] = f
773 j["published"] = time.Now().UTC().Format(time.RFC3339)
774
775 var buf bytes.Buffer
776 j.Write(&buf)
777 msg := buf.Bytes()
778
779 deliverate(0, user.Name, xid, msg)
780}
781
782func subsub(user *WhatAbout, xid string) {
783 j := junk.New()
784 j["@context"] = itiswhatitis
785 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
786 j["type"] = "Follow"
787 j["actor"] = user.URL
788 j["to"] = xid
789 j["object"] = xid
790 j["published"] = time.Now().UTC().Format(time.RFC3339)
791
792 var buf bytes.Buffer
793 j.Write(&buf)
794 msg := buf.Bytes()
795
796 deliverate(0, user.Name, xid, msg)
797}
798
799func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
800 dt := h.Date.Format(time.RFC3339)
801 var jo junk.Junk
802 j := junk.New()
803 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
804 j["actor"] = user.URL
805 j["published"] = dt
806 if h.Public {
807 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
808 } else {
809 j["to"] = h.Audience[0]
810 }
811 if len(h.Audience) > 1 {
812 j["cc"] = h.Audience[1:]
813 }
814
815 switch h.What {
816 case "update":
817 fallthrough
818 case "tonk":
819 fallthrough
820 case "honk":
821 if h.What == "update" {
822 j["type"] = "Update"
823 } else {
824 j["type"] = "Create"
825 }
826
827 jo = junk.New()
828 jo["id"] = h.XID
829 jo["type"] = "Note"
830 jo["published"] = dt
831 jo["url"] = h.XID
832 jo["attributedTo"] = user.URL
833 if h.RID != "" {
834 jo["inReplyTo"] = h.RID
835 }
836 if h.Convoy != "" {
837 jo["context"] = h.Convoy
838 jo["conversation"] = h.Convoy
839 }
840 jo["to"] = h.Audience[0]
841 if len(h.Audience) > 1 {
842 jo["cc"] = h.Audience[1:]
843 }
844 if !h.Public {
845 jo["directMessage"] = true
846 }
847 jo["summary"] = h.Precis
848 jo["content"] = ontologize(mentionize(h.Noise))
849 if strings.HasPrefix(h.Precis, "DZ:") {
850 jo["sensitive"] = true
851 }
852
853 var replies []string
854 for _, reply := range h.Replies {
855 replies = append(replies, reply.XID)
856 }
857 if len(replies) > 0 {
858 jr := junk.New()
859 jr["type"] = "Collection"
860 jr["totalItems"] = len(replies)
861 jr["items"] = replies
862 jo["replies"] = jr
863 }
864
865 var tags []junk.Junk
866 g := bunchofgrapes(h.Noise)
867 for _, m := range g {
868 t := junk.New()
869 t["type"] = "Mention"
870 t["name"] = m.who
871 t["href"] = m.where
872 tags = append(tags, t)
873 }
874 for _, o := range h.Onts {
875 t := junk.New()
876 t["type"] = "Hashtag"
877 o = strings.ToLower(o)
878 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
879 t["name"] = o
880 tags = append(tags, t)
881 }
882 herd := herdofemus(h.Noise)
883 for _, e := range herd {
884 t := junk.New()
885 t["id"] = e.ID
886 t["type"] = "Emoji"
887 t["name"] = e.Name
888 i := junk.New()
889 i["type"] = "Image"
890 i["mediaType"] = "image/png"
891 i["url"] = e.ID
892 t["icon"] = i
893 tags = append(tags, t)
894 }
895 if len(tags) > 0 {
896 jo["tag"] = tags
897 }
898 var atts []junk.Junk
899 for _, d := range h.Donks {
900 if re_emus.MatchString(d.Name) {
901 continue
902 }
903 jd := junk.New()
904 jd["mediaType"] = d.Media
905 jd["name"] = d.Name
906 jd["summary"] = d.Desc
907 jd["type"] = "Document"
908 jd["url"] = d.URL
909 atts = append(atts, jd)
910 }
911 if len(atts) > 0 {
912 jo["attachment"] = atts
913 }
914 j["object"] = jo
915 case "bonk":
916 j["type"] = "Announce"
917 if h.Convoy != "" {
918 j["context"] = h.Convoy
919 }
920 j["object"] = h.XID
921 case "unbonk":
922 b := junk.New()
923 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
924 b["type"] = "Announce"
925 if h.Convoy != "" {
926 b["context"] = h.Convoy
927 }
928 b["object"] = h.XID
929 j["type"] = "Undo"
930 j["object"] = b
931 case "zonk":
932 j["type"] = "Delete"
933 j["object"] = h.XID
934 case "ack":
935 j["type"] = "Read"
936 j["object"] = h.XID
937 case "deack":
938 j["type"] = "Ignore"
939 j["object"] = h.XID
940 }
941
942 return j, jo
943}
944
945func honkworldwide(user *WhatAbout, honk *Honk) {
946 jonk, _ := jonkjonk(user, honk)
947 jonk["@context"] = itiswhatitis
948 var buf bytes.Buffer
949 jonk.Write(&buf)
950 msg := buf.Bytes()
951
952 rcpts := make(map[string]bool)
953 for _, a := range honk.Audience {
954 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
955 box, _ := getboxes(a)
956 if box != nil && honk.Public && box.Shared != "" {
957 rcpts["%"+box.Shared] = true
958 } else {
959 rcpts[a] = true
960 }
961 }
962 }
963 if honk.Public {
964 for _, f := range getdubs(user.ID) {
965 box, _ := getboxes(f.XID)
966 if box != nil && box.Shared != "" {
967 rcpts["%"+box.Shared] = true
968 } else {
969 rcpts[f.XID] = true
970 }
971 }
972 }
973 for a := range rcpts {
974 go deliverate(0, user.Name, a, msg)
975 }
976}
977
978func asjonker(user *WhatAbout) junk.Junk {
979 about := obfusbreak(user.About)
980
981 j := junk.New()
982 j["@context"] = itiswhatitis
983 j["id"] = user.URL
984 j["type"] = "Person"
985 j["inbox"] = user.URL + "/inbox"
986 j["outbox"] = user.URL + "/outbox"
987 j["followers"] = user.URL + "/followers"
988 j["following"] = user.URL + "/following"
989 j["name"] = user.Display
990 j["preferredUsername"] = user.Name
991 j["summary"] = about
992 j["url"] = user.URL
993 a := junk.New()
994 a["type"] = "Image"
995 a["mediaType"] = "image/png"
996 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
997 j["icon"] = a
998 k := junk.New()
999 k["id"] = user.URL + "#key"
1000 k["owner"] = user.URL
1001 k["publicKeyPem"] = user.Key
1002 j["publicKey"] = k
1003
1004 return j
1005}
1006
1007var handfull = make(map[string]string)
1008var handlock sync.Mutex
1009
1010func gofish(name string) string {
1011 if name[0] == '@' {
1012 name = name[1:]
1013 }
1014 m := strings.Split(name, "@")
1015 if len(m) != 2 {
1016 log.Printf("bad fish name: %s", name)
1017 return ""
1018 }
1019 handlock.Lock()
1020 ref, ok := handfull[name]
1021 handlock.Unlock()
1022 if ok {
1023 return ref
1024 }
1025 row := stmtGetXonker.QueryRow(name, "fishname")
1026 var href string
1027 err := row.Scan(&href)
1028 if err == nil {
1029 handlock.Lock()
1030 handfull[name] = href
1031 handlock.Unlock()
1032 return href
1033 }
1034 log.Printf("fishing for %s", name)
1035 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1036 if err != nil {
1037 log.Printf("failed to go fish %s: %s", name, err)
1038 handlock.Lock()
1039 handfull[name] = ""
1040 handlock.Unlock()
1041 return ""
1042 }
1043 links, _ := j.GetArray("links")
1044 for _, li := range links {
1045 l, ok := li.(junk.Junk)
1046 if !ok {
1047 continue
1048 }
1049 href, _ := l.GetString("href")
1050 rel, _ := l.GetString("rel")
1051 t, _ := l.GetString("type")
1052 if rel == "self" && friendorfoe(t) {
1053 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1054 if err != nil {
1055 log.Printf("error saving fishname: %s", err)
1056 }
1057 handlock.Lock()
1058 handfull[name] = href
1059 handlock.Unlock()
1060 return href
1061 }
1062 }
1063 handlock.Lock()
1064 handfull[name] = ""
1065 handlock.Unlock()
1066 return ""
1067}
1068
1069func isactor(t string) bool {
1070 switch t {
1071 case "Person":
1072 case "Organization":
1073 case "Application":
1074 case "Service":
1075 default:
1076 return false
1077 }
1078 return true
1079}
1080
1081func investigate(name string) (*Honker, error) {
1082 if name == "" {
1083 return nil, fmt.Errorf("no name")
1084 }
1085 if name[0] == '@' {
1086 name = gofish(name)
1087 }
1088 if name == "" {
1089 return nil, fmt.Errorf("no name")
1090 }
1091 log.Printf("digging up some info on %s", name)
1092 obj, err := GetJunkFast(name)
1093 if err != nil {
1094 log.Printf("error investigating honker: %s", err)
1095 return nil, err
1096 }
1097 t, _ := obj.GetString("type")
1098 if !isactor(t) {
1099 log.Printf("it's not a person! %s", name)
1100 return nil, err
1101 }
1102 xid, _ := obj.GetString("id")
1103 handle, _ := obj.GetString("preferredUsername")
1104 return &Honker{XID: xid, Handle: handle}, nil
1105}