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/htfilter"
34 "humungus.tedunangst.com/r/webs/httpsig"
35 "humungus.tedunangst.com/r/webs/image"
36 "humungus.tedunangst.com/r/webs/junk"
37)
38
39var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
40var thefakename = `application/activity+json`
41var falsenames = []string{
42 `application/ld+json`,
43 `application/activity+json`,
44}
45var itiswhatitis = "https://www.w3.org/ns/activitystreams"
46var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
47
48func friendorfoe(ct string) bool {
49 ct = strings.ToLower(ct)
50 for _, at := range falsenames {
51 if strings.HasPrefix(ct, at) {
52 return true
53 }
54 }
55 return false
56}
57
58func PostJunk(keyname string, key *rsa.PrivateKey, url string, j junk.Junk) error {
59 var buf bytes.Buffer
60 j.Write(&buf)
61 return PostMsg(keyname, key, url, buf.Bytes())
62}
63
64func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
65 client := http.DefaultClient
66 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
67 if err != nil {
68 return err
69 }
70 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
71 req.Header.Set("Content-Type", theonetruename)
72 httpsig.SignRequest(keyname, key, req, msg)
73 resp, err := client.Do(req)
74 if err != nil {
75 return err
76 }
77 resp.Body.Close()
78 switch resp.StatusCode {
79 case 200:
80 case 201:
81 case 202:
82 default:
83 return fmt.Errorf("http post status: %d", resp.StatusCode)
84 }
85 log.Printf("successful post: %s %d", url, resp.StatusCode)
86 return nil
87}
88
89func GetJunk(url string) (junk.Junk, error) {
90 return GetJunkTimeout(url, 30*time.Second)
91}
92
93func GetJunkFast(url string) (junk.Junk, error) {
94 return GetJunkTimeout(url, 5*time.Second)
95}
96
97func GetJunkHardMode(url string) (junk.Junk, error) {
98 j, err := GetJunk(url)
99 if err != nil {
100 emsg := err.Error()
101 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
102 log.Printf("trying again after error: %s", emsg)
103 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
104 j, err = GetJunk(url)
105 if err != nil {
106 log.Printf("still couldn't get it")
107 } else {
108 log.Printf("retry success!")
109 }
110 }
111 }
112 return j, err
113}
114
115func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
116 at := thefakename
117 if strings.Contains(url, ".well-known/webfinger?resource") {
118 at = "application/jrd+json"
119 }
120 return junk.Get(url, junk.GetArgs{
121 Accept: at,
122 Agent: "honksnonk/5.0; " + serverName,
123 Timeout: timeout,
124 })
125}
126
127func savedonk(url string, name, desc, media string, localize bool) *Donk {
128 if url == "" {
129 return nil
130 }
131 donk := finddonk(url)
132 if donk != nil {
133 return donk
134 }
135 donk = new(Donk)
136 log.Printf("saving donk: %s", url)
137 xid := xfiltrate()
138 data := []byte{}
139 if localize {
140 resp, err := http.Get(url)
141 if err != nil {
142 log.Printf("error fetching %s: %s", url, err)
143 localize = false
144 goto saveit
145 }
146 defer resp.Body.Close()
147 if resp.StatusCode != 200 {
148 localize = false
149 goto saveit
150 }
151 var buf bytes.Buffer
152 io.Copy(&buf, resp.Body)
153
154 data = buf.Bytes()
155 if strings.HasPrefix(media, "image") {
156 img, err := image.Vacuum(&buf,
157 image.Params{LimitSize: 4800 * 4800, MaxWidth: 2048, MaxHeight: 2048})
158 if err != nil {
159 log.Printf("unable to decode image: %s", err)
160 localize = false
161 data = []byte{}
162 goto saveit
163 }
164 data = img.Data
165 format := img.Format
166 media = "image/" + format
167 if format == "jpeg" {
168 format = "jpg"
169 }
170 xid = xid + "." + format
171 } else if len(data) > 100000 {
172 log.Printf("not saving large attachment")
173 localize = false
174 data = []byte{}
175 }
176 }
177saveit:
178 fileid, err := savefile(xid, name, desc, url, media, localize, data)
179 if err != nil {
180 log.Printf("error saving file %s: %s", url, err)
181 return nil
182 }
183 donk.FileID = fileid
184 donk.XID = xid
185 return donk
186}
187
188func iszonked(userid int64, xid string) bool {
189 row := stmtFindZonk.QueryRow(userid, xid)
190 var id int64
191 err := row.Scan(&id)
192 if err == nil {
193 return true
194 }
195 if err != sql.ErrNoRows {
196 log.Printf("err querying zonk: %s", err)
197 }
198 return false
199}
200
201func needxonk(user *WhatAbout, x *Honk) bool {
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 eradicatexonk(userid int64, xid string) {
233 xonk := getxonk(userid, xid)
234 if xonk != nil {
235 deletehonk(xonk.ID)
236 }
237 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
238 if err != nil {
239 log.Printf("error eradicating: %s", err)
240 }
241}
242
243func savexonk(x *Honk) {
244 log.Printf("saving xonk: %s", x.XID)
245 go prehandle(x.Honker)
246 go prehandle(x.Oonker)
247 savehonk(x)
248}
249
250type Box struct {
251 In string
252 Out string
253 Shared string
254}
255
256var boxofboxes = make(map[string]*Box)
257var boxlock sync.Mutex
258var boxinglock sync.Mutex
259
260func getboxes(ident string) (*Box, error) {
261 boxlock.Lock()
262 b, ok := boxofboxes[ident]
263 boxlock.Unlock()
264 if ok {
265 return b, nil
266 }
267
268 boxinglock.Lock()
269 defer boxinglock.Unlock()
270
271 boxlock.Lock()
272 b, ok = boxofboxes[ident]
273 boxlock.Unlock()
274 if ok {
275 return b, nil
276 }
277
278 var info string
279 row := stmtGetXonker.QueryRow(ident, "boxes")
280 err := row.Scan(&info)
281 if err != nil {
282 j, err := GetJunk(ident)
283 if err != nil {
284 return nil, err
285 }
286 inbox, _ := j.GetString("inbox")
287 outbox, _ := j.GetString("outbox")
288 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
289 b = &Box{In: inbox, Out: outbox, Shared: sbox}
290 if inbox != "" {
291 m := strings.Join([]string{inbox, outbox, sbox}, " ")
292 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
293 if err != nil {
294 log.Printf("error saving boxes: %s", err)
295 }
296 }
297 } else {
298 m := strings.Split(info, " ")
299 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
300 }
301
302 boxlock.Lock()
303 boxofboxes[ident] = b
304 boxlock.Unlock()
305 return b, nil
306}
307
308func gimmexonks(user *WhatAbout, outbox string) {
309 log.Printf("getting outbox: %s", outbox)
310 j, err := GetJunk(outbox)
311 if err != nil {
312 log.Printf("error getting outbox: %s", err)
313 return
314 }
315 t, _ := j.GetString("type")
316 origin := originate(outbox)
317 if t == "OrderedCollection" {
318 items, _ := j.GetArray("orderedItems")
319 if items == nil {
320 obj, ok := j.GetMap("first")
321 if ok {
322 items, _ = obj.GetArray("orderedItems")
323 } else {
324 page1, _ := j.GetString("first")
325 j, err = GetJunk(page1)
326 if err != nil {
327 log.Printf("error gettings page1: %s", err)
328 return
329 }
330 items, _ = j.GetArray("orderedItems")
331 }
332 }
333 if len(items) > 20 {
334 items = items[0:20]
335 }
336 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
337 items[i], items[j] = items[j], items[i]
338 }
339 for _, item := range items {
340 obj, ok := item.(junk.Junk)
341 if !ok {
342 continue
343 }
344 xonksaver(user, obj, origin)
345 }
346 }
347}
348
349func peeppeep() {
350 user, _ := butwhatabout("htest")
351 honkers := gethonkers(user.ID)
352 for _, f := range honkers {
353 if f.Flavor != "peep" {
354 continue
355 }
356 log.Printf("getting updates: %s", f.XID)
357 box, err := getboxes(f.XID)
358 if err != nil {
359 log.Printf("error getting outbox: %s", err)
360 continue
361 }
362 gimmexonks(user, box.Out)
363 }
364}
365func whosthere(xid string) ([]string, string) {
366 obj, err := GetJunk(xid)
367 if err != nil {
368 log.Printf("error getting remote xonk: %s", err)
369 return nil, ""
370 }
371 convoy, _ := obj.GetString("context")
372 if convoy == "" {
373 convoy, _ = obj.GetString("conversation")
374 }
375 return newphone(nil, obj), convoy
376}
377
378func newphone(a []string, obj junk.Junk) []string {
379 for _, addr := range []string{"to", "cc", "attributedTo"} {
380 who, _ := obj.GetString(addr)
381 if who != "" {
382 a = append(a, who)
383 }
384 whos, _ := obj.GetArray(addr)
385 for _, w := range whos {
386 who, _ := w.(string)
387 if who != "" {
388 a = append(a, who)
389 }
390 }
391 }
392 return a
393}
394
395func extractattrto(obj junk.Junk) string {
396 who, _ := obj.GetString("attributedTo")
397 if who != "" {
398 return who
399 }
400 o, ok := obj.GetMap("attributedTo")
401 if ok {
402 id, ok := o.GetString("id")
403 if ok {
404 return id
405 }
406 }
407 arr, _ := obj.GetArray("attributedTo")
408 for _, a := range arr {
409 o, ok := a.(junk.Junk)
410 if ok {
411 t, _ := o.GetString("type")
412 id, _ := o.GetString("id")
413 if t == "Person" || t == "" {
414 return id
415 }
416 }
417 }
418 return ""
419}
420
421func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
422 depth := 0
423 maxdepth := 10
424 currenttid := ""
425 goingup := 0
426 var xonkxonkfn func(item junk.Junk, origin string) *Honk
427
428 saveonemore := func(xid string) {
429 log.Printf("getting onemore: %s", xid)
430 if depth >= maxdepth {
431 log.Printf("in too deep")
432 return
433 }
434 obj, err := GetJunkHardMode(xid)
435 if err != nil {
436 log.Printf("error getting onemore: %s: %s", xid, err)
437 return
438 }
439 depth++
440 xonkxonkfn(obj, originate(xid))
441 depth--
442 }
443
444 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
445 // id, _ := item.GetString( "id")
446 what, _ := item.GetString("type")
447 dt, _ := item.GetString("published")
448
449 var err error
450 var xid, rid, url, content, precis, convoy string
451 var replies []string
452 var obj junk.Junk
453 var ok bool
454 isUpdate := false
455 switch what {
456 case "Delete":
457 obj, ok = item.GetMap("object")
458 if ok {
459 xid, _ = obj.GetString("id")
460 } else {
461 xid, _ = item.GetString("object")
462 }
463 if xid == "" {
464 return nil
465 }
466 if originate(xid) != origin {
467 log.Printf("forged delete: %s", xid)
468 return nil
469 }
470 log.Printf("eradicating %s", xid)
471 eradicatexonk(user.ID, xid)
472 return nil
473 case "Tombstone":
474 xid, _ = item.GetString("id")
475 if xid == "" {
476 return nil
477 }
478 if originate(xid) != origin {
479 log.Printf("forged delete: %s", xid)
480 return nil
481 }
482 log.Printf("eradicating %s", xid)
483 eradicatexonk(user.ID, xid)
484 return nil
485 case "Announce":
486 obj, ok = item.GetMap("object")
487 if ok {
488 xid, _ = obj.GetString("id")
489 } else {
490 xid, _ = item.GetString("object")
491 }
492 if !needxonkid(user, xid) {
493 return nil
494 }
495 log.Printf("getting bonk: %s", xid)
496 obj, err = GetJunkHardMode(xid)
497 if err != nil {
498 log.Printf("error getting bonk: %s: %s", xid, err)
499 }
500 origin = originate(xid)
501 what = "bonk"
502 case "Update":
503 isUpdate = true
504 fallthrough
505 case "Create":
506 obj, ok = item.GetMap("object")
507 if !ok {
508 xid, _ = item.GetString("object")
509 log.Printf("getting created honk: %s", xid)
510 obj, err = GetJunkHardMode(xid)
511 if err != nil {
512 log.Printf("error getting creation: %s", err)
513 }
514 }
515 what = "honk"
516 case "Read":
517 xid, ok = item.GetString("object")
518 if ok {
519 if !needxonkid(user, xid) {
520 log.Printf("don't need read obj: %s", xid)
521 return nil
522 }
523 obj, err = GetJunkHardMode(xid)
524 if err != nil {
525 log.Printf("error getting read: %s", err)
526 return nil
527 }
528 return xonkxonkfn(obj, originate(xid))
529 }
530 return nil
531 case "Video":
532 fallthrough
533 case "Question":
534 fallthrough
535 case "Note":
536 fallthrough
537 case "Article":
538 fallthrough
539 case "Page":
540 obj = item
541 what = "honk"
542 case "Event":
543 obj = item
544 what = "event"
545 default:
546 log.Printf("unknown activity: %s", what)
547 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
548 item.Write(fd)
549 io.WriteString(fd, "\n")
550 fd.Close()
551 return nil
552 }
553
554 var xonk Honk
555 // early init
556 xonk.UserID = user.ID
557 xonk.Honker, _ = item.GetString("actor")
558 if obj != nil {
559 if xonk.Honker == "" {
560 xonk.Honker = extractattrto(obj)
561 }
562 xonk.Oonker = extractattrto(obj)
563 if xonk.Oonker == xonk.Honker {
564 xonk.Oonker = ""
565 }
566 xonk.Audience = newphone(nil, obj)
567 }
568 xonk.Audience = append(xonk.Audience, xonk.Honker)
569 xonk.Audience = oneofakind(xonk.Audience)
570 for _, a := range xonk.Audience {
571 if a == user.URL {
572 xonk.Whofore = 1
573 }
574 }
575
576 if obj != nil {
577 ot, _ := obj.GetString("type")
578 url, _ = obj.GetString("url")
579 dt2, ok := obj.GetString("published")
580 if ok {
581 dt = dt2
582 }
583 xid, _ = obj.GetString("id")
584 precis, _ = obj.GetString("summary")
585 if precis == "" {
586 precis, _ = obj.GetString("name")
587 }
588 content, _ = obj.GetString("content")
589 if !strings.HasPrefix(content, "<p>") {
590 content = "<p>" + content
591 }
592 sens, _ := obj["sensitive"].(bool)
593 if sens && precis == "" {
594 precis = "unspecified horror"
595 }
596 rid, ok = obj.GetString("inReplyTo")
597 if !ok {
598 robj, ok := obj.GetMap("inReplyTo")
599 if ok {
600 rid, _ = robj.GetString("id")
601 }
602 }
603 convoy, _ = obj.GetString("context")
604 if strings.HasSuffix(convoy, "#context") &&
605 originate(convoy) != originate(xid) {
606 // friendica...
607 convoy = ""
608 }
609 if convoy == "" {
610 convoy, _ = obj.GetString("conversation")
611 }
612 if ot == "Question" {
613 if what == "honk" {
614 what = "qonk"
615 }
616 content += "<ul>"
617 ans, _ := obj.GetArray("oneOf")
618 for _, ai := range ans {
619 a, ok := ai.(junk.Junk)
620 if !ok {
621 continue
622 }
623 as, _ := a.GetString("name")
624 content += "<li>" + as
625 }
626 ans, _ = obj.GetArray("anyOf")
627 for _, ai := range ans {
628 a, ok := ai.(junk.Junk)
629 if !ok {
630 continue
631 }
632 as, _ := a.GetString("name")
633 content += "<li>" + as
634 }
635 content += "</ul>"
636 }
637 if what == "honk" && rid != "" {
638 what = "tonk"
639 }
640 atts, _ := obj.GetArray("attachment")
641 for i, atti := range atts {
642 att, ok := atti.(junk.Junk)
643 if !ok {
644 continue
645 }
646 at, _ := att.GetString("type")
647 mt, _ := att.GetString("mediaType")
648 u, _ := att.GetString("url")
649 name, _ := att.GetString("name")
650 desc, _ := att.GetString("summary")
651 if desc == "" {
652 desc = name
653 }
654 localize := false
655 if i > 4 {
656 log.Printf("excessive attachment: %s", at)
657 } else if at == "Document" || at == "Image" {
658 mt = strings.ToLower(mt)
659 log.Printf("attachment: %s %s", mt, u)
660 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
661 localize = true
662 }
663 } else {
664 log.Printf("unknown attachment: %s", at)
665 }
666 if skipMedia(&xonk) {
667 localize = false
668 }
669 donk := savedonk(u, name, desc, mt, localize)
670 if donk != nil {
671 xonk.Donks = append(xonk.Donks, donk)
672 }
673 }
674 tags, _ := obj.GetArray("tag")
675 for _, tagi := range tags {
676 tag, ok := tagi.(junk.Junk)
677 if !ok {
678 continue
679 }
680 tt, _ := tag.GetString("type")
681 name, _ := tag.GetString("name")
682 desc, _ := tag.GetString("summary")
683 if desc == "" {
684 desc = name
685 }
686 if tt == "Emoji" {
687 icon, _ := tag.GetMap("icon")
688 mt, _ := icon.GetString("mediaType")
689 if mt == "" {
690 mt = "image/png"
691 }
692 u, _ := icon.GetString("url")
693 donk := savedonk(u, name, desc, mt, true)
694 if donk != nil {
695 xonk.Donks = append(xonk.Donks, donk)
696 }
697 }
698 if tt == "Hashtag" {
699 if len(name) > 1 && name[0] == '#' {
700 xonk.Onts = append(xonk.Onts, name)
701 } else {
702 log.Printf("bogus hashtag name: %s", name)
703 }
704 }
705 if tt == "Place" {
706 p := new(Place)
707 p.Name = name
708 p.Latitude, _ = tag["latitude"].(float64)
709 p.Longitude, _ = tag["longitude"].(float64)
710 p.Url, _ = tag.GetString("url")
711 xonk.Place = p
712 }
713 }
714 starttime, ok := obj.GetString("startTime")
715 if ok {
716 start, err := time.Parse(time.RFC3339, starttime)
717 if err == nil {
718 t := new(Time)
719 t.StartTime = start
720 xonk.Time = t
721 }
722 }
723 loca, ok := obj.GetMap("location")
724 if ok {
725 tt, _ := loca.GetString("type")
726 name, _ := loca.GetString("name")
727 if tt == "Place" {
728 p := new(Place)
729 p.Name = name
730 p.Latitude, _ = loca["latitude"].(float64)
731 p.Longitude, _ = loca["longitude"].(float64)
732 p.Url, _ = loca.GetString("url")
733 xonk.Place = p
734 }
735 }
736
737 xonk.Onts = oneofakind(xonk.Onts)
738 replyobj, ok := obj.GetMap("replies")
739 if ok {
740 items, ok := replyobj.GetArray("items")
741 if !ok {
742 first, ok := replyobj.GetMap("first")
743 if ok {
744 items, _ = first.GetArray("items")
745 }
746 }
747 for _, repl := range items {
748 s, ok := repl.(string)
749 if ok {
750 replies = append(replies, s)
751 }
752 }
753 }
754
755 }
756 if originate(xid) != origin {
757 log.Printf("original sin: %s <> %s", xid, origin)
758 item.Write(os.Stdout)
759 return nil
760 }
761
762 if currenttid == "" {
763 currenttid = convoy
764 }
765
766 // grab any inline imgs
767 imgfilt := htfilter.New()
768 imgfilt.Imager = inlineimgs
769 imgfilt.String(content)
770
771 // init xonk
772 xonk.What = what
773 xonk.XID = xid
774 xonk.RID = rid
775 xonk.Date, _ = time.Parse(time.RFC3339, dt)
776 xonk.URL = url
777 xonk.Noise = content
778 xonk.Precis = precis
779 xonk.Format = "html"
780 xonk.Convoy = convoy
781
782 if isUpdate {
783 log.Printf("something has changed! %s", xonk.XID)
784 prev := getxonk(user.ID, xonk.XID)
785 if prev == nil {
786 log.Printf("didn't find old version for update: %s", xonk.XID)
787 return nil
788 }
789 prev.Noise = xonk.Noise
790 prev.Precis = xonk.Precis
791 prev.Date = xonk.Date
792 prev.Donks = xonk.Donks
793 prev.Onts = xonk.Onts
794 prev.Place = xonk.Place
795 updatehonk(prev)
796 } else if needxonk(user, &xonk) {
797 if rid != "" {
798 if needxonkid(user, rid) {
799 goingup++
800 saveonemore(rid)
801 goingup--
802 }
803 if convoy == "" {
804 xx := getxonk(user.ID, rid)
805 if xx != nil {
806 convoy = xx.Convoy
807 }
808 }
809 }
810 if convoy == "" {
811 convoy = currenttid
812 }
813 savexonk(&xonk)
814 }
815 if goingup == 0 {
816 for _, replid := range replies {
817 if needxonkid(user, replid) {
818 log.Printf("missing a reply: %s", replid)
819 saveonemore(replid)
820 }
821 }
822 }
823 return &xonk
824 }
825
826 return xonkxonkfn(item, origin)
827}
828
829func rubadubdub(user *WhatAbout, req junk.Junk) {
830 xid, _ := req.GetString("id")
831 actor, _ := req.GetString("actor")
832 j := junk.New()
833 j["@context"] = itiswhatitis
834 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
835 j["type"] = "Accept"
836 j["actor"] = user.URL
837 j["to"] = actor
838 j["published"] = time.Now().UTC().Format(time.RFC3339)
839 j["object"] = req
840
841 var buf bytes.Buffer
842 j.Write(&buf)
843 msg := buf.Bytes()
844
845 deliverate(0, user.Name, actor, msg)
846}
847
848func itakeitallback(user *WhatAbout, xid string) {
849 j := junk.New()
850 j["@context"] = itiswhatitis
851 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
852 j["type"] = "Undo"
853 j["actor"] = user.URL
854 j["to"] = xid
855 f := junk.New()
856 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
857 f["type"] = "Follow"
858 f["actor"] = user.URL
859 f["to"] = xid
860 f["object"] = xid
861 j["object"] = f
862 j["published"] = time.Now().UTC().Format(time.RFC3339)
863
864 var buf bytes.Buffer
865 j.Write(&buf)
866 msg := buf.Bytes()
867
868 deliverate(0, user.Name, xid, msg)
869}
870
871func subsub(user *WhatAbout, xid string) {
872 j := junk.New()
873 j["@context"] = itiswhatitis
874 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
875 j["type"] = "Follow"
876 j["actor"] = user.URL
877 j["to"] = xid
878 j["object"] = xid
879 j["published"] = time.Now().UTC().Format(time.RFC3339)
880
881 var buf bytes.Buffer
882 j.Write(&buf)
883 msg := buf.Bytes()
884
885 deliverate(0, user.Name, xid, msg)
886}
887
888// returns activity, object
889func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
890 dt := h.Date.Format(time.RFC3339)
891 var jo junk.Junk
892 j := junk.New()
893 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
894 j["actor"] = user.URL
895 j["published"] = dt
896 if h.Public {
897 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
898 } else {
899 j["to"] = h.Audience[0]
900 }
901 if len(h.Audience) > 1 {
902 j["cc"] = h.Audience[1:]
903 }
904
905 switch h.What {
906 case "update":
907 fallthrough
908 case "tonk":
909 fallthrough
910 case "event":
911 fallthrough
912 case "honk":
913 j["type"] = "Create"
914 if h.What == "update" {
915 j["type"] = "Update"
916 }
917
918 jo = junk.New()
919 jo["id"] = h.XID
920 jo["type"] = "Note"
921 if h.What == "event" {
922 jo["type"] = "Event"
923 }
924 jo["published"] = dt
925 jo["url"] = h.XID
926 jo["attributedTo"] = user.URL
927 if h.RID != "" {
928 jo["inReplyTo"] = h.RID
929 }
930 if h.Convoy != "" {
931 jo["context"] = h.Convoy
932 jo["conversation"] = h.Convoy
933 }
934 jo["to"] = h.Audience[0]
935 if len(h.Audience) > 1 {
936 jo["cc"] = h.Audience[1:]
937 }
938 if !h.Public {
939 jo["directMessage"] = true
940 }
941 translate(h)
942 h.Noise = re_memes.ReplaceAllString(h.Noise, "")
943 jo["summary"] = h.Precis
944 jo["content"] = ontologize(mentionize(h.Noise))
945 if strings.HasPrefix(h.Precis, "DZ:") {
946 jo["sensitive"] = true
947 }
948
949 var replies []string
950 for _, reply := range h.Replies {
951 replies = append(replies, reply.XID)
952 }
953 if len(replies) > 0 {
954 jr := junk.New()
955 jr["type"] = "Collection"
956 jr["totalItems"] = len(replies)
957 jr["items"] = replies
958 jo["replies"] = jr
959 }
960
961 var tags []junk.Junk
962 g := bunchofgrapes(h.Noise)
963 for _, m := range g {
964 t := junk.New()
965 t["type"] = "Mention"
966 t["name"] = m.who
967 t["href"] = m.where
968 tags = append(tags, t)
969 }
970 for _, o := range h.Onts {
971 t := junk.New()
972 t["type"] = "Hashtag"
973 o = strings.ToLower(o)
974 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
975 t["name"] = o
976 tags = append(tags, t)
977 }
978 herd := herdofemus(h.Noise)
979 for _, e := range herd {
980 t := junk.New()
981 t["id"] = e.ID
982 t["type"] = "Emoji"
983 t["name"] = e.Name
984 i := junk.New()
985 i["type"] = "Image"
986 i["mediaType"] = "image/png"
987 i["url"] = e.ID
988 t["icon"] = i
989 tags = append(tags, t)
990 }
991 if p := h.Place; p != nil {
992 t := junk.New()
993 t["type"] = "Place"
994 t["name"] = p.Name
995 t["latitude"] = p.Latitude
996 t["longitude"] = p.Longitude
997 t["url"] = p.Url
998 tags = append(tags, t)
999 }
1000 if len(tags) > 0 {
1001 jo["tag"] = tags
1002 }
1003 if t := h.Time; t != nil {
1004 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1005 }
1006 var atts []junk.Junk
1007 for _, d := range h.Donks {
1008 if re_emus.MatchString(d.Name) {
1009 continue
1010 }
1011 jd := junk.New()
1012 jd["mediaType"] = d.Media
1013 jd["name"] = d.Name
1014 jd["summary"] = d.Desc
1015 jd["type"] = "Document"
1016 jd["url"] = d.URL
1017 atts = append(atts, jd)
1018 }
1019 if len(atts) > 0 {
1020 jo["attachment"] = atts
1021 }
1022 j["object"] = jo
1023 case "bonk":
1024 j["type"] = "Announce"
1025 if h.Convoy != "" {
1026 j["context"] = h.Convoy
1027 }
1028 j["object"] = h.XID
1029 case "unbonk":
1030 b := junk.New()
1031 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1032 b["type"] = "Announce"
1033 b["actor"] = user.URL
1034 if h.Convoy != "" {
1035 b["context"] = h.Convoy
1036 }
1037 b["object"] = h.XID
1038 j["type"] = "Undo"
1039 j["object"] = b
1040 case "zonk":
1041 j["type"] = "Delete"
1042 j["object"] = h.XID
1043 case "ack":
1044 j["type"] = "Read"
1045 j["object"] = h.XID
1046 case "deack":
1047 b := junk.New()
1048 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1049 b["type"] = "Read"
1050 b["actor"] = user.URL
1051 b["object"] = h.XID
1052 j["type"] = "Undo"
1053 j["object"] = b
1054 }
1055
1056 return j, jo
1057}
1058
1059func honkworldwide(user *WhatAbout, honk *Honk) {
1060 jonk, _ := jonkjonk(user, honk)
1061 jonk["@context"] = itiswhatitis
1062 var buf bytes.Buffer
1063 jonk.Write(&buf)
1064 msg := buf.Bytes()
1065
1066 rcpts := make(map[string]bool)
1067 for _, a := range honk.Audience {
1068 if a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1069 continue
1070 }
1071 box, _ := getboxes(a)
1072 if box != nil && honk.Public && box.Shared != "" {
1073 rcpts["%"+box.Shared] = true
1074 } else {
1075 rcpts[a] = true
1076 }
1077 }
1078 if honk.Public {
1079 for _, f := range getdubs(user.ID) {
1080 if f.XID == user.URL {
1081 continue
1082 }
1083 box, _ := getboxes(f.XID)
1084 if box != nil && box.Shared != "" {
1085 rcpts["%"+box.Shared] = true
1086 } else {
1087 rcpts[f.XID] = true
1088 }
1089 }
1090 }
1091 for a := range rcpts {
1092 go deliverate(0, user.Name, a, msg)
1093 }
1094}
1095
1096func asjonker(user *WhatAbout) junk.Junk {
1097 about := obfusbreak(user.About)
1098
1099 j := junk.New()
1100 j["@context"] = itiswhatitis
1101 j["id"] = user.URL
1102 j["type"] = "Person"
1103 j["inbox"] = user.URL + "/inbox"
1104 j["outbox"] = user.URL + "/outbox"
1105 j["followers"] = user.URL + "/followers"
1106 j["following"] = user.URL + "/following"
1107 j["name"] = user.Display
1108 j["preferredUsername"] = user.Name
1109 j["summary"] = about
1110 j["url"] = user.URL
1111 a := junk.New()
1112 a["type"] = "Image"
1113 a["mediaType"] = "image/png"
1114 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1115 j["icon"] = a
1116 k := junk.New()
1117 k["id"] = user.URL + "#key"
1118 k["owner"] = user.URL
1119 k["publicKeyPem"] = user.Key
1120 j["publicKey"] = k
1121
1122 return j
1123}
1124
1125var handfull = make(map[string]string)
1126var handlock sync.Mutex
1127
1128func gofish(name string) string {
1129 if name[0] == '@' {
1130 name = name[1:]
1131 }
1132 m := strings.Split(name, "@")
1133 if len(m) != 2 {
1134 log.Printf("bad fish name: %s", name)
1135 return ""
1136 }
1137 handlock.Lock()
1138 ref, ok := handfull[name]
1139 handlock.Unlock()
1140 if ok {
1141 return ref
1142 }
1143 row := stmtGetXonker.QueryRow(name, "fishname")
1144 var href string
1145 err := row.Scan(&href)
1146 if err == nil {
1147 handlock.Lock()
1148 handfull[name] = href
1149 handlock.Unlock()
1150 return href
1151 }
1152 log.Printf("fishing for %s", name)
1153 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1154 if err != nil {
1155 log.Printf("failed to go fish %s: %s", name, err)
1156 handlock.Lock()
1157 handfull[name] = ""
1158 handlock.Unlock()
1159 return ""
1160 }
1161 links, _ := j.GetArray("links")
1162 for _, li := range links {
1163 l, ok := li.(junk.Junk)
1164 if !ok {
1165 continue
1166 }
1167 href, _ := l.GetString("href")
1168 rel, _ := l.GetString("rel")
1169 t, _ := l.GetString("type")
1170 if rel == "self" && friendorfoe(t) {
1171 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1172 if err != nil {
1173 log.Printf("error saving fishname: %s", err)
1174 }
1175 handlock.Lock()
1176 handfull[name] = href
1177 handlock.Unlock()
1178 return href
1179 }
1180 }
1181 handlock.Lock()
1182 handfull[name] = ""
1183 handlock.Unlock()
1184 return ""
1185}
1186
1187func isactor(t string) bool {
1188 switch t {
1189 case "Person":
1190 case "Organization":
1191 case "Application":
1192 case "Service":
1193 default:
1194 return false
1195 }
1196 return true
1197}
1198
1199func investigate(name string) (*Honker, error) {
1200 if name == "" {
1201 return nil, fmt.Errorf("no name")
1202 }
1203 if name[0] == '@' {
1204 name = gofish(name)
1205 }
1206 if name == "" {
1207 return nil, fmt.Errorf("no name")
1208 }
1209 log.Printf("digging up some info on %s", name)
1210 obj, err := GetJunkFast(name)
1211 if err != nil {
1212 log.Printf("error investigating honker: %s", err)
1213 return nil, err
1214 }
1215 t, _ := obj.GetString("type")
1216 if !isactor(t) {
1217 log.Printf("it's not a person! %s", name)
1218 return nil, err
1219 }
1220 xid, _ := obj.GetString("id")
1221 handle, _ := obj.GetString("preferredUsername")
1222 return &Honker{XID: xid, Handle: handle}, nil
1223}