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 fileid, err := savefile(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 = fileid
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 thoudostbitethythumb(user.ID, x.Audience, x.XID) {
205 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
206 return false
207 }
208 return needxonkid(user, x.XID)
209}
210func needxonkid(user *WhatAbout, xid string) bool {
211 if strings.HasPrefix(xid, user.URL+"/") {
212 return false
213 }
214 if thoudostbitethythumb(user.ID, nil, xid) {
215 log.Printf("don't need thumb biter? %s", xid)
216 return false
217 }
218 if iszonked(user.ID, xid) {
219 log.Printf("already zonked: %s", xid)
220 return false
221 }
222 row := stmtFindXonk.QueryRow(user.ID, xid)
223 var id int64
224 err := row.Scan(&id)
225 if err == nil {
226 return false
227 }
228 if err != sql.ErrNoRows {
229 log.Printf("err querying xonk: %s", err)
230 }
231 return true
232}
233
234func eradicatexonk(userid int64, xid string) {
235 xonk := getxonk(userid, xid)
236 if xonk != nil {
237 deletehonk(xonk.ID)
238 }
239 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
240 if err != nil {
241 log.Printf("error eradicating: %s", err)
242 }
243}
244
245func savexonk(x *Honk) {
246 log.Printf("saving xonk: %s", x.XID)
247 go prehandle(x.Honker)
248 go prehandle(x.Oonker)
249 savehonk(x)
250}
251
252type Box struct {
253 In string
254 Out string
255 Shared string
256}
257
258var boxofboxes = make(map[string]*Box)
259var boxlock sync.Mutex
260var boxinglock sync.Mutex
261
262func getboxes(ident string) (*Box, error) {
263 boxlock.Lock()
264 b, ok := boxofboxes[ident]
265 boxlock.Unlock()
266 if ok {
267 return b, nil
268 }
269
270 boxinglock.Lock()
271 defer boxinglock.Unlock()
272
273 boxlock.Lock()
274 b, ok = boxofboxes[ident]
275 boxlock.Unlock()
276 if ok {
277 return b, nil
278 }
279
280 var info string
281 row := stmtGetXonker.QueryRow(ident, "boxes")
282 err := row.Scan(&info)
283 if err != nil {
284 j, err := GetJunk(ident)
285 if err != nil {
286 return nil, err
287 }
288 inbox, _ := j.GetString("inbox")
289 outbox, _ := j.GetString("outbox")
290 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
291 b = &Box{In: inbox, Out: outbox, Shared: sbox}
292 if inbox != "" {
293 m := strings.Join([]string{inbox, outbox, sbox}, " ")
294 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
295 if err != nil {
296 log.Printf("error saving boxes: %s", err)
297 }
298 }
299 } else {
300 m := strings.Split(info, " ")
301 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
302 }
303
304 boxlock.Lock()
305 boxofboxes[ident] = b
306 boxlock.Unlock()
307 return b, nil
308}
309
310func gimmexonks(user *WhatAbout, outbox string) {
311 log.Printf("getting outbox: %s", outbox)
312 j, err := GetJunk(outbox)
313 if err != nil {
314 log.Printf("error getting outbox: %s", err)
315 return
316 }
317 t, _ := j.GetString("type")
318 origin := originate(outbox)
319 if t == "OrderedCollection" {
320 items, _ := j.GetArray("orderedItems")
321 if items == nil {
322 obj, ok := j.GetMap("first")
323 if ok {
324 items, _ = obj.GetArray("orderedItems")
325 } else {
326 page1, _ := j.GetString("first")
327 j, err = GetJunk(page1)
328 if err != nil {
329 log.Printf("error gettings page1: %s", err)
330 return
331 }
332 items, _ = j.GetArray("orderedItems")
333 }
334 }
335 if len(items) > 20 {
336 items = items[0:20]
337 }
338 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
339 items[i], items[j] = items[j], items[i]
340 }
341 for _, item := range items {
342 obj, ok := item.(junk.Junk)
343 if !ok {
344 continue
345 }
346 xonk := xonkxonk(user, obj, origin)
347 if xonk != nil {
348 savexonk(xonk)
349 }
350 }
351 }
352}
353
354func peeppeep() {
355 user, _ := butwhatabout("htest")
356 honkers := gethonkers(user.ID)
357 for _, f := range honkers {
358 if f.Flavor != "peep" {
359 continue
360 }
361 log.Printf("getting updates: %s", f.XID)
362 box, err := getboxes(f.XID)
363 if err != nil {
364 log.Printf("error getting outbox: %s", err)
365 continue
366 }
367 gimmexonks(user, box.Out)
368 }
369}
370func whosthere(xid string) ([]string, string) {
371 obj, err := GetJunk(xid)
372 if err != nil {
373 log.Printf("error getting remote xonk: %s", err)
374 return nil, ""
375 }
376 convoy, _ := obj.GetString("context")
377 if convoy == "" {
378 convoy, _ = obj.GetString("conversation")
379 }
380 return newphone(nil, obj), convoy
381}
382
383func newphone(a []string, obj junk.Junk) []string {
384 for _, addr := range []string{"to", "cc", "attributedTo"} {
385 who, _ := obj.GetString(addr)
386 if who != "" {
387 a = append(a, who)
388 }
389 whos, _ := obj.GetArray(addr)
390 for _, w := range whos {
391 who, _ := w.(string)
392 if who != "" {
393 a = append(a, who)
394 }
395 }
396 }
397 return a
398}
399
400func extractattrto(obj junk.Junk) string {
401 who, _ := obj.GetString("attributedTo")
402 if who != "" {
403 return who
404 }
405 o, ok := obj.GetMap("attributedTo")
406 if ok {
407 id, ok := o.GetString("id")
408 if ok {
409 return id
410 }
411 }
412 arr, _ := obj.GetArray("attributedTo")
413 for _, a := range arr {
414 o, ok := a.(junk.Junk)
415 if ok {
416 t, _ := o.GetString("type")
417 id, _ := o.GetString("id")
418 if t == "Person" || t == "" {
419 return id
420 }
421 }
422 }
423 return ""
424}
425
426func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
427 xonk := xonkxonk(user, j, origin)
428 if xonk != nil {
429 savexonk(xonk)
430 }
431}
432
433func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
434 depth := 0
435 maxdepth := 10
436 currenttid := ""
437 var xonkxonkfn func(item junk.Junk, origin string) *Honk
438
439 saveoneup := func(xid string) {
440 log.Printf("getting oneup: %s", xid)
441 if depth >= maxdepth {
442 log.Printf("in too deep")
443 return
444 }
445 obj, err := GetJunkHardMode(xid)
446 if err != nil {
447 log.Printf("error getting oneup: %s: %s", xid, err)
448 return
449 }
450 depth++
451 xonk := xonkxonkfn(obj, originate(xid))
452 if xonk != nil {
453 savexonk(xonk)
454 }
455 depth--
456 }
457
458 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
459 // id, _ := item.GetString( "id")
460 what, _ := item.GetString("type")
461 dt, _ := item.GetString("published")
462
463 var err error
464 var xid, rid, url, content, precis, convoy string
465 var obj junk.Junk
466 var ok bool
467 isUpdate := false
468 switch what {
469 case "Delete":
470 obj, ok = item.GetMap("object")
471 if ok {
472 xid, _ = obj.GetString("id")
473 } else {
474 xid, _ = item.GetString("object")
475 }
476 if xid == "" {
477 return nil
478 }
479 if originate(xid) != origin {
480 log.Printf("forged delete: %s", xid)
481 return nil
482 }
483 log.Printf("eradicating %s", xid)
484 eradicatexonk(user.ID, xid)
485 return nil
486 case "Announce":
487 obj, ok = item.GetMap("object")
488 if ok {
489 xid, _ = obj.GetString("id")
490 } else {
491 xid, _ = item.GetString("object")
492 }
493 if !needxonkid(user, xid) {
494 return nil
495 }
496 log.Printf("getting bonk: %s", xid)
497 obj, err = GetJunkHardMode(xid)
498 if err != nil {
499 log.Printf("error getting bonk: %s: %s", xid, err)
500 }
501 origin = originate(xid)
502 what = "bonk"
503 case "Update":
504 isUpdate = true
505 fallthrough
506 case "Create":
507 obj, ok = item.GetMap("object")
508 if !ok {
509 xid, _ = item.GetString("object")
510 log.Printf("getting created honk: %s", xid)
511 obj, err = GetJunkHardMode(xid)
512 if err != nil {
513 log.Printf("error getting creation: %s", err)
514 }
515 }
516 what = "honk"
517 case "Read":
518 xid, ok = item.GetString("object")
519 if ok {
520 if !needxonkid(user, xid) {
521 log.Printf("don't need read obj: %s", xid)
522 return nil
523 }
524 obj, err = GetJunkHardMode(xid)
525 if err != nil {
526 log.Printf("error getting read: %s", err)
527 return nil
528 }
529 return xonkxonkfn(obj, originate(xid))
530 }
531 return nil
532 case "Video":
533 fallthrough
534 case "Question":
535 fallthrough
536 case "Note":
537 fallthrough
538 case "Article":
539 fallthrough
540 case "Page":
541 obj = item
542 what = "honk"
543 default:
544 log.Printf("unknown activity: %s", what)
545 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
546 item.Write(fd)
547 io.WriteString(fd, "\n")
548 fd.Close()
549 return nil
550 }
551
552 var xonk Honk
553 // early init
554 xonk.UserID = user.ID
555 xonk.Honker, _ = item.GetString("actor")
556 if obj != nil {
557 if xonk.Honker == "" {
558 xonk.Honker = extractattrto(obj)
559 }
560 xonk.Oonker = extractattrto(obj)
561 if xonk.Oonker == xonk.Honker {
562 xonk.Oonker = ""
563 }
564 xonk.Audience = newphone(nil, obj)
565 }
566 xonk.Audience = append(xonk.Audience, xonk.Honker)
567 xonk.Audience = oneofakind(xonk.Audience)
568 for _, a := range xonk.Audience {
569 if a == user.URL {
570 xonk.Whofore = 1
571 }
572 }
573
574 if obj != nil {
575 ot, _ := obj.GetString("type")
576 url, _ = obj.GetString("url")
577 dt2, ok := obj.GetString("published")
578 if ok {
579 dt = dt2
580 }
581 xid, _ = obj.GetString("id")
582 precis, _ = obj.GetString("summary")
583 if precis == "" {
584 precis, _ = obj.GetString("name")
585 }
586 content, _ = obj.GetString("content")
587 if !strings.HasPrefix(content, "<p>") {
588 content = "<p>" + content
589 }
590 sens, _ := obj["sensitive"].(bool)
591 if sens && precis == "" {
592 precis = "unspecified horror"
593 }
594 rid, ok = obj.GetString("inReplyTo")
595 if !ok {
596 robj, ok := obj.GetMap("inReplyTo")
597 if ok {
598 rid, _ = robj.GetString("id")
599 }
600 }
601 convoy, _ = obj.GetString("context")
602 if strings.HasSuffix(convoy, "#context") &&
603 originate(convoy) != originate(xid) {
604 // friendica...
605 convoy = ""
606 }
607 if convoy == "" {
608 convoy, _ = obj.GetString("conversation")
609 }
610 if ot == "Question" {
611 if what == "honk" {
612 what = "qonk"
613 }
614 content += "<ul>"
615 ans, _ := obj.GetArray("oneOf")
616 for _, ai := range ans {
617 a, ok := ai.(junk.Junk)
618 if !ok {
619 continue
620 }
621 as, _ := a.GetString("name")
622 content += "<li>" + as
623 }
624 ans, _ = obj.GetArray("anyOf")
625 for _, ai := range ans {
626 a, ok := ai.(junk.Junk)
627 if !ok {
628 continue
629 }
630 as, _ := a.GetString("name")
631 content += "<li>" + as
632 }
633 content += "</ul>"
634 }
635 if what == "honk" && rid != "" {
636 what = "tonk"
637 }
638 atts, _ := obj.GetArray("attachment")
639 for i, atti := range atts {
640 att, ok := atti.(junk.Junk)
641 if !ok {
642 continue
643 }
644 at, _ := att.GetString("type")
645 mt, _ := att.GetString("mediaType")
646 u, _ := att.GetString("url")
647 name, _ := att.GetString("name")
648 desc, _ := att.GetString("summary")
649 if desc == "" {
650 desc = name
651 }
652 localize := false
653 if i > 4 {
654 log.Printf("excessive attachment: %s", at)
655 } else if at == "Document" || at == "Image" {
656 mt = strings.ToLower(mt)
657 log.Printf("attachment: %s %s", mt, u)
658 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
659 localize = true
660 }
661 } else {
662 log.Printf("unknown attachment: %s", at)
663 }
664 if skipMedia(&xonk) {
665 localize = false
666 }
667 donk := savedonk(u, name, desc, mt, localize)
668 if donk != nil {
669 xonk.Donks = append(xonk.Donks, donk)
670 }
671 }
672 tags, _ := obj.GetArray("tag")
673 for _, tagi := range tags {
674 tag, ok := tagi.(junk.Junk)
675 if !ok {
676 continue
677 }
678 tt, _ := tag.GetString("type")
679 name, _ := tag.GetString("name")
680 desc, _ := tag.GetString("summary")
681 if desc == "" {
682 desc = name
683 }
684 if tt == "Emoji" {
685 icon, _ := tag.GetMap("icon")
686 mt, _ := icon.GetString("mediaType")
687 if mt == "" {
688 mt = "image/png"
689 }
690 u, _ := icon.GetString("url")
691 donk := savedonk(u, name, desc, mt, true)
692 if donk != nil {
693 xonk.Donks = append(xonk.Donks, donk)
694 }
695 }
696 if tt == "Hashtag" {
697 if len(name) > 1 && name[0] == '#' {
698 xonk.Onts = append(xonk.Onts, name)
699 } else {
700 log.Printf("bogus hashtag name: %s", name)
701 }
702 }
703 if tt == "Place" {
704 p := new(Place)
705 p.Name = name
706 p.Latitude, _ = tag["latitude"].(float64)
707 p.Longitude, _ = tag["longitude"].(float64)
708 p.Url, _ = tag.GetString("url")
709 log.Printf("place: %v", p)
710 xonk.Place = p
711 }
712 }
713 xonk.Onts = oneofakind(xonk.Onts)
714 }
715 if originate(xid) != origin {
716 log.Printf("original sin: %s <> %s", xid, origin)
717 item.Write(os.Stdout)
718 return nil
719 }
720
721 if currenttid == "" {
722 currenttid = convoy
723 }
724
725 // init xonk
726 xonk.What = what
727 xonk.XID = xid
728 xonk.RID = rid
729 xonk.Date, _ = time.Parse(time.RFC3339, dt)
730 xonk.URL = url
731 xonk.Noise = content
732 xonk.Precis = precis
733 xonk.Format = "html"
734
735 if isUpdate {
736 log.Printf("something has changed! %s", xonk.XID)
737 prev := getxonk(user.ID, xonk.XID)
738 if prev == nil {
739 log.Printf("didn't find old version for update: %s", xonk.XID)
740 return nil
741 }
742 prev.Noise = xonk.Noise
743 prev.Precis = xonk.Precis
744 prev.Date = xonk.Date
745 prev.Donks = xonk.Donks
746 prev.Onts = xonk.Onts
747 prev.Place = xonk.Place
748 updatehonk(prev)
749 return nil
750 }
751
752 if needxonk(user, &xonk) {
753 if rid != "" {
754 if needxonkid(user, rid) {
755 saveoneup(rid)
756 }
757 if convoy == "" {
758 xx := getxonk(user.ID, rid)
759 if xx != nil {
760 convoy = xx.Convoy
761 }
762 }
763 }
764 if convoy == "" {
765 convoy = currenttid
766 }
767 xonk.Convoy = convoy
768 return &xonk
769 }
770 return nil
771 }
772
773 return xonkxonkfn(item, origin)
774}
775
776func rubadubdub(user *WhatAbout, req junk.Junk) {
777 xid, _ := req.GetString("id")
778 actor, _ := req.GetString("actor")
779 j := junk.New()
780 j["@context"] = itiswhatitis
781 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
782 j["type"] = "Accept"
783 j["actor"] = user.URL
784 j["to"] = actor
785 j["published"] = time.Now().UTC().Format(time.RFC3339)
786 j["object"] = req
787
788 var buf bytes.Buffer
789 j.Write(&buf)
790 msg := buf.Bytes()
791
792 deliverate(0, user.Name, actor, msg)
793}
794
795func itakeitallback(user *WhatAbout, xid string) {
796 j := junk.New()
797 j["@context"] = itiswhatitis
798 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
799 j["type"] = "Undo"
800 j["actor"] = user.URL
801 j["to"] = xid
802 f := junk.New()
803 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
804 f["type"] = "Follow"
805 f["actor"] = user.URL
806 f["to"] = xid
807 f["object"] = xid
808 j["object"] = f
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
818func subsub(user *WhatAbout, xid string) {
819 j := junk.New()
820 j["@context"] = itiswhatitis
821 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
822 j["type"] = "Follow"
823 j["actor"] = user.URL
824 j["to"] = xid
825 j["object"] = xid
826 j["published"] = time.Now().UTC().Format(time.RFC3339)
827
828 var buf bytes.Buffer
829 j.Write(&buf)
830 msg := buf.Bytes()
831
832 deliverate(0, user.Name, xid, msg)
833}
834
835// returns activity, object
836func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
837 dt := h.Date.Format(time.RFC3339)
838 var jo junk.Junk
839 j := junk.New()
840 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
841 j["actor"] = user.URL
842 j["published"] = dt
843 if h.Public {
844 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
845 } else {
846 j["to"] = h.Audience[0]
847 }
848 if len(h.Audience) > 1 {
849 j["cc"] = h.Audience[1:]
850 }
851
852 switch h.What {
853 case "update":
854 fallthrough
855 case "tonk":
856 fallthrough
857 case "honk":
858 if h.What == "update" {
859 j["type"] = "Update"
860 } else {
861 j["type"] = "Create"
862 }
863
864 jo = junk.New()
865 jo["id"] = h.XID
866 jo["type"] = "Note"
867 jo["published"] = dt
868 jo["url"] = h.XID
869 jo["attributedTo"] = user.URL
870 if h.RID != "" {
871 jo["inReplyTo"] = h.RID
872 }
873 if h.Convoy != "" {
874 jo["context"] = h.Convoy
875 jo["conversation"] = h.Convoy
876 }
877 jo["to"] = h.Audience[0]
878 if len(h.Audience) > 1 {
879 jo["cc"] = h.Audience[1:]
880 }
881 if !h.Public {
882 jo["directMessage"] = true
883 }
884 translate(h)
885 h.Noise = re_memes.ReplaceAllString(h.Noise, "")
886 jo["summary"] = h.Precis
887 jo["content"] = ontologize(mentionize(h.Noise))
888 if strings.HasPrefix(h.Precis, "DZ:") {
889 jo["sensitive"] = true
890 }
891
892 var replies []string
893 for _, reply := range h.Replies {
894 replies = append(replies, reply.XID)
895 }
896 if len(replies) > 0 {
897 jr := junk.New()
898 jr["type"] = "Collection"
899 jr["totalItems"] = len(replies)
900 jr["items"] = replies
901 jo["replies"] = jr
902 }
903
904 var tags []junk.Junk
905 g := bunchofgrapes(h.Noise)
906 for _, m := range g {
907 t := junk.New()
908 t["type"] = "Mention"
909 t["name"] = m.who
910 t["href"] = m.where
911 tags = append(tags, t)
912 }
913 for _, o := range h.Onts {
914 t := junk.New()
915 t["type"] = "Hashtag"
916 o = strings.ToLower(o)
917 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
918 t["name"] = o
919 tags = append(tags, t)
920 }
921 herd := herdofemus(h.Noise)
922 for _, e := range herd {
923 t := junk.New()
924 t["id"] = e.ID
925 t["type"] = "Emoji"
926 t["name"] = e.Name
927 i := junk.New()
928 i["type"] = "Image"
929 i["mediaType"] = "image/png"
930 i["url"] = e.ID
931 t["icon"] = i
932 tags = append(tags, t)
933 }
934 if p := h.Place; p != nil {
935 t := junk.New()
936 t["type"] = "Place"
937 t["name"] = p.Name
938 t["latitude"] = p.Latitude
939 t["longitude"] = p.Longitude
940 t["url"] = p.Url
941 tags = append(tags, t)
942 }
943 if len(tags) > 0 {
944 jo["tag"] = tags
945 }
946 var atts []junk.Junk
947 for _, d := range h.Donks {
948 if re_emus.MatchString(d.Name) {
949 continue
950 }
951 jd := junk.New()
952 jd["mediaType"] = d.Media
953 jd["name"] = d.Name
954 jd["summary"] = d.Desc
955 jd["type"] = "Document"
956 jd["url"] = d.URL
957 atts = append(atts, jd)
958 }
959 if len(atts) > 0 {
960 jo["attachment"] = atts
961 }
962 j["object"] = jo
963 case "bonk":
964 j["type"] = "Announce"
965 if h.Convoy != "" {
966 j["context"] = h.Convoy
967 }
968 j["object"] = h.XID
969 case "unbonk":
970 b := junk.New()
971 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
972 b["type"] = "Announce"
973 b["actor"] = user.URL
974 if h.Convoy != "" {
975 b["context"] = h.Convoy
976 }
977 b["object"] = h.XID
978 j["type"] = "Undo"
979 j["object"] = b
980 case "zonk":
981 j["type"] = "Delete"
982 j["object"] = h.XID
983 case "ack":
984 j["type"] = "Read"
985 j["object"] = h.XID
986 case "deack":
987 b := junk.New()
988 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
989 b["type"] = "Read"
990 b["actor"] = user.URL
991 b["object"] = h.XID
992 j["type"] = "Undo"
993 j["object"] = b
994 }
995
996 return j, jo
997}
998
999func honkworldwide(user *WhatAbout, honk *Honk) {
1000 jonk, _ := jonkjonk(user, honk)
1001 jonk["@context"] = itiswhatitis
1002 var buf bytes.Buffer
1003 jonk.Write(&buf)
1004 msg := buf.Bytes()
1005
1006 rcpts := make(map[string]bool)
1007 for _, a := range honk.Audience {
1008 if a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1009 continue
1010 }
1011 box, _ := getboxes(a)
1012 if box != nil && honk.Public && box.Shared != "" {
1013 rcpts["%"+box.Shared] = true
1014 } else {
1015 rcpts[a] = true
1016 }
1017 }
1018 if honk.Public {
1019 for _, f := range getdubs(user.ID) {
1020 if f.XID == user.URL {
1021 continue
1022 }
1023 box, _ := getboxes(f.XID)
1024 if box != nil && box.Shared != "" {
1025 rcpts["%"+box.Shared] = true
1026 } else {
1027 rcpts[f.XID] = true
1028 }
1029 }
1030 }
1031 for a := range rcpts {
1032 go deliverate(0, user.Name, a, msg)
1033 }
1034}
1035
1036func asjonker(user *WhatAbout) junk.Junk {
1037 about := obfusbreak(user.About)
1038
1039 j := junk.New()
1040 j["@context"] = itiswhatitis
1041 j["id"] = user.URL
1042 j["type"] = "Person"
1043 j["inbox"] = user.URL + "/inbox"
1044 j["outbox"] = user.URL + "/outbox"
1045 j["followers"] = user.URL + "/followers"
1046 j["following"] = user.URL + "/following"
1047 j["name"] = user.Display
1048 j["preferredUsername"] = user.Name
1049 j["summary"] = about
1050 j["url"] = user.URL
1051 a := junk.New()
1052 a["type"] = "Image"
1053 a["mediaType"] = "image/png"
1054 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1055 j["icon"] = a
1056 k := junk.New()
1057 k["id"] = user.URL + "#key"
1058 k["owner"] = user.URL
1059 k["publicKeyPem"] = user.Key
1060 j["publicKey"] = k
1061
1062 return j
1063}
1064
1065var handfull = make(map[string]string)
1066var handlock sync.Mutex
1067
1068func gofish(name string) string {
1069 if name[0] == '@' {
1070 name = name[1:]
1071 }
1072 m := strings.Split(name, "@")
1073 if len(m) != 2 {
1074 log.Printf("bad fish name: %s", name)
1075 return ""
1076 }
1077 handlock.Lock()
1078 ref, ok := handfull[name]
1079 handlock.Unlock()
1080 if ok {
1081 return ref
1082 }
1083 row := stmtGetXonker.QueryRow(name, "fishname")
1084 var href string
1085 err := row.Scan(&href)
1086 if err == nil {
1087 handlock.Lock()
1088 handfull[name] = href
1089 handlock.Unlock()
1090 return href
1091 }
1092 log.Printf("fishing for %s", name)
1093 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1094 if err != nil {
1095 log.Printf("failed to go fish %s: %s", name, err)
1096 handlock.Lock()
1097 handfull[name] = ""
1098 handlock.Unlock()
1099 return ""
1100 }
1101 links, _ := j.GetArray("links")
1102 for _, li := range links {
1103 l, ok := li.(junk.Junk)
1104 if !ok {
1105 continue
1106 }
1107 href, _ := l.GetString("href")
1108 rel, _ := l.GetString("rel")
1109 t, _ := l.GetString("type")
1110 if rel == "self" && friendorfoe(t) {
1111 _, err := stmtSaveXonker.Exec(name, href, "fishname")
1112 if err != nil {
1113 log.Printf("error saving fishname: %s", err)
1114 }
1115 handlock.Lock()
1116 handfull[name] = href
1117 handlock.Unlock()
1118 return href
1119 }
1120 }
1121 handlock.Lock()
1122 handfull[name] = ""
1123 handlock.Unlock()
1124 return ""
1125}
1126
1127func isactor(t string) bool {
1128 switch t {
1129 case "Person":
1130 case "Organization":
1131 case "Application":
1132 case "Service":
1133 default:
1134 return false
1135 }
1136 return true
1137}
1138
1139func investigate(name string) (*Honker, error) {
1140 if name == "" {
1141 return nil, fmt.Errorf("no name")
1142 }
1143 if name[0] == '@' {
1144 name = gofish(name)
1145 }
1146 if name == "" {
1147 return nil, fmt.Errorf("no name")
1148 }
1149 log.Printf("digging up some info on %s", name)
1150 obj, err := GetJunkFast(name)
1151 if err != nil {
1152 log.Printf("error investigating honker: %s", err)
1153 return nil, err
1154 }
1155 t, _ := obj.GetString("type")
1156 if !isactor(t) {
1157 log.Printf("it's not a person! %s", name)
1158 return nil, err
1159 }
1160 xid, _ := obj.GetString("id")
1161 handle, _ := obj.GetString("preferredUsername")
1162 return &Honker{XID: xid, Handle: handle}, nil
1163}