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 "errors"
23 "fmt"
24 "html"
25 "io"
26 "log"
27 notrand "math/rand"
28 "net/http"
29 "net/url"
30 "os"
31 "regexp"
32 "strings"
33 "time"
34
35 "humungus.tedunangst.com/r/webs/cache"
36 "humungus.tedunangst.com/r/webs/gate"
37 "humungus.tedunangst.com/r/webs/httpsig"
38 "humungus.tedunangst.com/r/webs/junk"
39 "humungus.tedunangst.com/r/webs/templates"
40)
41
42var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
43var thefakename = `application/activity+json`
44var falsenames = []string{
45 `application/ld+json`,
46 `application/activity+json`,
47}
48var itiswhatitis = "https://www.w3.org/ns/activitystreams"
49var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
50
51func friendorfoe(ct string) bool {
52 ct = strings.ToLower(ct)
53 for _, at := range falsenames {
54 if strings.HasPrefix(ct, at) {
55 return true
56 }
57 }
58 return false
59}
60
61func PostJunk(keyname string, key *rsa.PrivateKey, url string, j junk.Junk) error {
62 return PostMsg(keyname, key, url, j.ToBytes())
63}
64
65func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
66 client := http.DefaultClient
67 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
68 if err != nil {
69 return err
70 }
71 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
72 req.Header.Set("Content-Type", theonetruename)
73 httpsig.SignRequest(keyname, key, req, msg)
74 resp, err := client.Do(req)
75 if err != nil {
76 return err
77 }
78 resp.Body.Close()
79 switch resp.StatusCode {
80 case 200:
81 case 201:
82 case 202:
83 default:
84 return fmt.Errorf("http post status: %d", resp.StatusCode)
85 }
86 log.Printf("successful post: %s %d", url, resp.StatusCode)
87 return nil
88}
89
90type JunkError struct {
91 Junk junk.Junk
92 Err error
93}
94
95func GetJunk(url string) (junk.Junk, error) {
96 return GetJunkTimeout(url, 30*time.Second)
97}
98
99func GetJunkFast(url string) (junk.Junk, error) {
100 return GetJunkTimeout(url, 5*time.Second)
101}
102
103func GetJunkHardMode(url string) (junk.Junk, error) {
104 j, err := GetJunk(url)
105 if err != nil {
106 emsg := err.Error()
107 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
108 log.Printf("trying again after error: %s", emsg)
109 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
110 j, err = GetJunk(url)
111 if err != nil {
112 log.Printf("still couldn't get it")
113 } else {
114 log.Printf("retry success!")
115 }
116 }
117 }
118 return j, err
119}
120
121var flightdeck = gate.NewSerializer()
122
123func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
124
125 fn := func() (interface{}, error) {
126 at := thefakename
127 if strings.Contains(url, ".well-known/webfinger?resource") {
128 at = "application/jrd+json"
129 }
130 j, err := junk.Get(url, junk.GetArgs{
131 Accept: at,
132 Agent: "honksnonk/5.0; " + serverName,
133 Timeout: timeout,
134 })
135 return j, err
136 }
137
138 ji, err := flightdeck.Call(url, fn)
139 if err != nil {
140 return nil, err
141 }
142 j := ji.(junk.Junk)
143 return j, nil
144}
145
146func fetchsome(url string) ([]byte, error) {
147 resp, err := http.Get(url)
148 if err != nil {
149 log.Printf("error fetching %s: %s", url, err)
150 return nil, err
151 }
152 defer resp.Body.Close()
153 if resp.StatusCode != 200 {
154 return nil, errors.New("not 200")
155 }
156 var buf bytes.Buffer
157 limiter := io.LimitReader(resp.Body, 10*1024*1024)
158 io.Copy(&buf, limiter)
159 return buf.Bytes(), nil
160}
161
162func savedonk(url string, name, desc, media string, localize bool) *Donk {
163 if url == "" {
164 return nil
165 }
166 donk := finddonk(url)
167 if donk != nil {
168 return donk
169 }
170 donk = new(Donk)
171 log.Printf("saving donk: %s", url)
172 xid := xfiltrate()
173 data := []byte{}
174 if localize {
175 fn := func() (interface{}, error) {
176 return fetchsome(url)
177 }
178 ii, err := flightdeck.Call(url, fn)
179 if err != nil {
180 localize = false
181 goto saveit
182 }
183 data = ii.([]byte)
184
185 if len(data) == 10*1024*1024 {
186 log.Printf("truncation likely")
187 }
188 if strings.HasPrefix(media, "image") {
189 img, err := shrinkit(data)
190 if err != nil {
191 log.Printf("unable to decode image: %s", err)
192 localize = false
193 data = []byte{}
194 goto saveit
195 }
196 data = img.Data
197 format := img.Format
198 media = "image/" + format
199 if format == "jpeg" {
200 format = "jpg"
201 }
202 xid = xid + "." + format
203 } else if media == "application/pdf" {
204 if len(data) > 1000000 {
205 log.Printf("not saving large pdf")
206 localize = false
207 data = []byte{}
208 }
209 } else if len(data) > 100000 {
210 log.Printf("not saving large attachment")
211 localize = false
212 data = []byte{}
213 }
214 }
215saveit:
216 fileid, err := savefile(xid, name, desc, url, media, localize, data)
217 if err != nil {
218 log.Printf("error saving file %s: %s", url, err)
219 return nil
220 }
221 donk.FileID = fileid
222 donk.XID = xid
223 return donk
224}
225
226func iszonked(userid int64, xid string) bool {
227 var id int64
228 row := stmtFindZonk.QueryRow(userid, xid)
229 err := row.Scan(&id)
230 if err == nil {
231 return true
232 }
233 if err != sql.ErrNoRows {
234 log.Printf("error querying zonk: %s", err)
235 }
236 return false
237}
238
239func needxonk(user *WhatAbout, x *Honk) bool {
240 if rejectxonk(x) {
241 return false
242 }
243 return needxonkid(user, x.XID)
244}
245func needbonkid(user *WhatAbout, xid string) bool {
246 return needxonkidX(user, xid, true)
247}
248func needxonkid(user *WhatAbout, xid string) bool {
249 return needxonkidX(user, xid, false)
250}
251func needxonkidX(user *WhatAbout, xid string, isannounce bool) bool {
252 if !strings.HasPrefix(xid, "https://") {
253 return false
254 }
255 if strings.HasPrefix(xid, user.URL+"/") {
256 return false
257 }
258 if rejectorigin(user.ID, xid, isannounce) {
259 return false
260 }
261 if iszonked(user.ID, xid) {
262 log.Printf("already zonked: %s", xid)
263 return false
264 }
265 var id int64
266 row := stmtFindXonk.QueryRow(user.ID, xid)
267 err := row.Scan(&id)
268 if err == nil {
269 return false
270 }
271 if err != sql.ErrNoRows {
272 log.Printf("error querying xonk: %s", err)
273 }
274 return true
275}
276
277func eradicatexonk(userid int64, xid string) {
278 xonk := getxonk(userid, xid)
279 if xonk != nil {
280 deletehonk(xonk.ID)
281 }
282 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
283 if err != nil {
284 log.Printf("error eradicating: %s", err)
285 }
286}
287
288func savexonk(x *Honk) {
289 log.Printf("saving xonk: %s", x.XID)
290 go handles(x.Honker)
291 go handles(x.Oonker)
292 savehonk(x)
293}
294
295type Box struct {
296 In string
297 Out string
298 Shared string
299}
300
301var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
302 var info string
303 row := stmtGetXonker.QueryRow(ident, "boxes")
304 err := row.Scan(&info)
305 if err != nil {
306 log.Printf("need to get boxes for %s", ident)
307 var j junk.Junk
308 j, err = GetJunk(ident)
309 if err != nil {
310 log.Printf("error getting boxes: %s", err)
311 return nil, false
312 }
313 allinjest(originate(ident), j)
314 row = stmtGetXonker.QueryRow(ident, "boxes")
315 err = row.Scan(&info)
316 }
317 if err == nil {
318 m := strings.Split(info, " ")
319 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
320 return b, true
321 }
322 return nil, false
323}})
324
325func gimmexonks(user *WhatAbout, outbox string) {
326 log.Printf("getting outbox: %s", outbox)
327 j, err := GetJunk(outbox)
328 if err != nil {
329 log.Printf("error getting outbox: %s", err)
330 return
331 }
332 t, _ := j.GetString("type")
333 origin := originate(outbox)
334 if t == "OrderedCollection" {
335 items, _ := j.GetArray("orderedItems")
336 if items == nil {
337 items, _ = j.GetArray("items")
338 }
339 if items == nil {
340 obj, ok := j.GetMap("first")
341 if ok {
342 items, _ = obj.GetArray("orderedItems")
343 } else {
344 page1, ok := j.GetString("first")
345 if ok {
346 j, err = GetJunk(page1)
347 if err != nil {
348 log.Printf("error gettings page1: %s", err)
349 return
350 }
351 items, _ = j.GetArray("orderedItems")
352 }
353 }
354 }
355 if len(items) > 20 {
356 items = items[0:20]
357 }
358 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
359 items[i], items[j] = items[j], items[i]
360 }
361 for _, item := range items {
362 obj, ok := item.(junk.Junk)
363 if ok {
364 xonksaver(user, obj, origin)
365 continue
366 }
367 xid, ok := item.(string)
368 if ok {
369 if !needxonkid(user, xid) {
370 continue
371 }
372 obj, err = GetJunk(xid)
373 if err != nil {
374 log.Printf("error getting item: %s", err)
375 continue
376 }
377 xonksaver(user, obj, originate(xid))
378 }
379 }
380 }
381}
382
383func whosthere(xid string) ([]string, string) {
384 obj, err := GetJunk(xid)
385 if err != nil {
386 log.Printf("error getting remote xonk: %s", err)
387 return nil, ""
388 }
389 convoy, _ := obj.GetString("context")
390 if convoy == "" {
391 convoy, _ = obj.GetString("conversation")
392 }
393 return newphone(nil, obj), convoy
394}
395
396func newphone(a []string, obj junk.Junk) []string {
397 for _, addr := range []string{"to", "cc", "attributedTo"} {
398 who, _ := obj.GetString(addr)
399 if who != "" {
400 a = append(a, who)
401 }
402 whos, _ := obj.GetArray(addr)
403 for _, w := range whos {
404 who, _ := w.(string)
405 if who != "" {
406 a = append(a, who)
407 }
408 }
409 }
410 return a
411}
412
413func extractattrto(obj junk.Junk) string {
414 who, _ := obj.GetString("attributedTo")
415 if who != "" {
416 return who
417 }
418 o, ok := obj.GetMap("attributedTo")
419 if ok {
420 id, ok := o.GetString("id")
421 if ok {
422 return id
423 }
424 }
425 arr, _ := obj.GetArray("attributedTo")
426 for _, a := range arr {
427 o, ok := a.(junk.Junk)
428 if ok {
429 t, _ := o.GetString("type")
430 id, _ := o.GetString("id")
431 if t == "Person" || t == "" {
432 return id
433 }
434 }
435 s, ok := a.(string)
436 if ok {
437 return s
438 }
439 }
440 return ""
441}
442
443func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
444 depth := 0
445 maxdepth := 10
446 currenttid := ""
447 goingup := 0
448 var xonkxonkfn func(item junk.Junk, origin string) *Honk
449
450 saveonemore := func(xid string) {
451 log.Printf("getting onemore: %s", xid)
452 if depth >= maxdepth {
453 log.Printf("in too deep")
454 return
455 }
456 obj, err := GetJunkHardMode(xid)
457 if err != nil {
458 log.Printf("error getting onemore: %s: %s", xid, err)
459 return
460 }
461 depth++
462 xonkxonkfn(obj, originate(xid))
463 depth--
464 }
465
466 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
467 // id, _ := item.GetString( "id")
468 what, _ := item.GetString("type")
469 dt, ok := item.GetString("published")
470 if !ok {
471 dt = time.Now().Format(time.RFC3339)
472 }
473
474 var err error
475 var xid, rid, url, content, precis, convoy string
476 var replies []string
477 var obj junk.Junk
478 isUpdate := false
479 switch what {
480 case "Delete":
481 obj, ok = item.GetMap("object")
482 if ok {
483 xid, _ = obj.GetString("id")
484 } else {
485 xid, _ = item.GetString("object")
486 }
487 if xid == "" {
488 return nil
489 }
490 if originate(xid) != origin {
491 log.Printf("forged delete: %s", xid)
492 return nil
493 }
494 log.Printf("eradicating %s", xid)
495 eradicatexonk(user.ID, xid)
496 return nil
497 case "Tombstone":
498 xid, _ = item.GetString("id")
499 if xid == "" {
500 return nil
501 }
502 if originate(xid) != origin {
503 log.Printf("forged delete: %s", xid)
504 return nil
505 }
506 log.Printf("eradicating %s", xid)
507 eradicatexonk(user.ID, xid)
508 return nil
509 case "Announce":
510 obj, ok = item.GetMap("object")
511 if ok {
512 xid, _ = obj.GetString("id")
513 } else {
514 xid, _ = item.GetString("object")
515 }
516 if !needbonkid(user, xid) {
517 return nil
518 }
519 log.Printf("getting bonk: %s", xid)
520 obj, err = GetJunkHardMode(xid)
521 if err != nil {
522 log.Printf("error getting bonk: %s: %s", xid, err)
523 }
524 origin = originate(xid)
525 what = "bonk"
526 case "Update":
527 isUpdate = true
528 fallthrough
529 case "Create":
530 obj, ok = item.GetMap("object")
531 if !ok {
532 xid, _ = item.GetString("object")
533 log.Printf("getting created honk: %s", xid)
534 obj, err = GetJunkHardMode(xid)
535 if err != nil {
536 log.Printf("error getting creation: %s", err)
537 }
538 }
539 what = "honk"
540 if obj != nil {
541 t, _ := obj.GetString("type")
542 switch t {
543 case "Event":
544 what = "event"
545 }
546 }
547 case "Read":
548 xid, ok = item.GetString("object")
549 if ok {
550 if !needxonkid(user, xid) {
551 log.Printf("don't need read obj: %s", xid)
552 return nil
553 }
554 obj, err = GetJunkHardMode(xid)
555 if err != nil {
556 log.Printf("error getting read: %s", err)
557 return nil
558 }
559 return xonkxonkfn(obj, originate(xid))
560 }
561 return nil
562 case "Add":
563 xid, ok = item.GetString("object")
564 if ok {
565 // check target...
566 if !needxonkid(user, xid) {
567 log.Printf("don't need added obj: %s", xid)
568 return nil
569 }
570 obj, err = GetJunkHardMode(xid)
571 if err != nil {
572 log.Printf("error getting add: %s", err)
573 return nil
574 }
575 return xonkxonkfn(obj, originate(xid))
576 }
577 return nil
578 case "Move":
579 obj = item
580 what = "move"
581 case "Audio":
582 fallthrough
583 case "Video":
584 fallthrough
585 case "Question":
586 fallthrough
587 case "Note":
588 fallthrough
589 case "Article":
590 fallthrough
591 case "Page":
592 obj = item
593 what = "honk"
594 case "Event":
595 obj = item
596 what = "event"
597 default:
598 log.Printf("unknown activity: %s", what)
599 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
600 item.Write(fd)
601 io.WriteString(fd, "\n")
602 fd.Close()
603 return nil
604 }
605
606 if obj != nil {
607 if _, ok := obj.GetString("diaspora:guid"); ok {
608 // friendica does the silliest bonks
609 if c, ok := obj.GetString("source", "content"); ok {
610 re_link := regexp.MustCompile(`link='([^']*)'`)
611 if m := re_link.FindStringSubmatch(c); len(m) > 1 {
612 xid := m[1]
613 log.Printf("getting friendica flavored bonk: %s", xid)
614 if !needxonkid(user, xid) {
615 return nil
616 }
617 if newobj, err := GetJunkHardMode(xid); err == nil {
618 obj = newobj
619 origin = originate(xid)
620 what = "bonk"
621 } else {
622 log.Printf("error getting bonk: %s: %s", xid, err)
623 }
624 }
625 }
626 }
627 }
628
629 var xonk Honk
630 // early init
631 xonk.UserID = user.ID
632 xonk.Honker, _ = item.GetString("actor")
633 if xonk.Honker == "" {
634 xonk.Honker, _ = item.GetString("attributedTo")
635 }
636 if obj != nil {
637 if xonk.Honker == "" {
638 xonk.Honker = extractattrto(obj)
639 }
640 xonk.Oonker = extractattrto(obj)
641 if xonk.Oonker == xonk.Honker {
642 xonk.Oonker = ""
643 }
644 xonk.Audience = newphone(nil, obj)
645 }
646 xonk.Audience = append(xonk.Audience, xonk.Honker)
647 xonk.Audience = oneofakind(xonk.Audience)
648
649 var mentions []Mention
650 if obj != nil {
651 ot, _ := obj.GetString("type")
652 url, _ = obj.GetString("url")
653 if dt2, ok := obj.GetString("published"); ok {
654 dt = dt2
655 }
656 xid, _ = obj.GetString("id")
657 precis, _ = obj.GetString("summary")
658 if name, ok := obj.GetString("name"); ok {
659 if precis != "" {
660 precis = "\n" + precis
661 }
662 precis = name + precis
663 }
664 content, _ = obj.GetString("content")
665 if !strings.HasPrefix(content, "<p>") {
666 content = "<p>" + content
667 }
668 if sens, _ := obj["sensitive"].(bool); sens && precis == "" {
669 precis = "unspecified horror"
670 }
671 rid, ok = obj.GetString("inReplyTo")
672 if !ok {
673 if robj, ok := obj.GetMap("inReplyTo"); ok {
674 rid, _ = robj.GetString("id")
675 }
676 }
677 convoy, _ = obj.GetString("context")
678 if convoy == "" {
679 convoy, _ = obj.GetString("conversation")
680 }
681 if ot == "Question" {
682 if what == "honk" {
683 what = "qonk"
684 }
685 content += "<ul>"
686 ans, _ := obj.GetArray("oneOf")
687 for _, ai := range ans {
688 a, ok := ai.(junk.Junk)
689 if !ok {
690 continue
691 }
692 as, _ := a.GetString("name")
693 content += "<li>" + as
694 }
695 ans, _ = obj.GetArray("anyOf")
696 for _, ai := range ans {
697 a, ok := ai.(junk.Junk)
698 if !ok {
699 continue
700 }
701 as, _ := a.GetString("name")
702 content += "<li>" + as
703 }
704 content += "</ul>"
705 }
706 if ot == "Move" {
707 targ, _ := obj.GetString("target")
708 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
709 }
710 if what == "honk" && rid != "" {
711 what = "tonk"
712 }
713 atts, _ := obj.GetArray("attachment")
714 for i, atti := range atts {
715 att, ok := atti.(junk.Junk)
716 if !ok {
717 continue
718 }
719 at, _ := att.GetString("type")
720 mt, _ := att.GetString("mediaType")
721 u, _ := att.GetString("url")
722 name, _ := att.GetString("name")
723 desc, _ := att.GetString("summary")
724 if desc == "" {
725 desc = name
726 }
727 localize := false
728 if i > 4 {
729 log.Printf("excessive attachment: %s", at)
730 } else if at == "Document" || at == "Image" {
731 mt = strings.ToLower(mt)
732 log.Printf("attachment: %s %s", mt, u)
733 if mt == "text/plain" || mt == "application/pdf" ||
734 strings.HasPrefix(mt, "image") {
735 localize = true
736 }
737 } else {
738 log.Printf("unknown attachment: %s", at)
739 }
740 if skipMedia(&xonk) {
741 localize = false
742 }
743 donk := savedonk(u, name, desc, mt, localize)
744 if donk != nil {
745 xonk.Donks = append(xonk.Donks, donk)
746 }
747 }
748 tags, _ := obj.GetArray("tag")
749 for _, tagi := range tags {
750 tag, ok := tagi.(junk.Junk)
751 if !ok {
752 continue
753 }
754 tt, _ := tag.GetString("type")
755 name, _ := tag.GetString("name")
756 desc, _ := tag.GetString("summary")
757 if desc == "" {
758 desc = name
759 }
760 if tt == "Emoji" {
761 icon, _ := tag.GetMap("icon")
762 mt, _ := icon.GetString("mediaType")
763 if mt == "" {
764 mt = "image/png"
765 }
766 u, _ := icon.GetString("url")
767 donk := savedonk(u, name, desc, mt, true)
768 if donk != nil {
769 xonk.Donks = append(xonk.Donks, donk)
770 }
771 }
772 if tt == "Hashtag" {
773 if name == "" || name == "#" {
774 // skip it
775 } else {
776 if name[0] != '#' {
777 name = "#" + name
778 }
779 xonk.Onts = append(xonk.Onts, name)
780 }
781 }
782 if tt == "Place" {
783 p := new(Place)
784 p.Name = name
785 p.Latitude, _ = tag["latitude"].(float64)
786 p.Longitude, _ = tag["longitude"].(float64)
787 p.Url, _ = tag.GetString("url")
788 xonk.Place = p
789 }
790 if tt == "Mention" {
791 var m Mention
792 m.Who, _ = tag.GetString("name")
793 m.Where, _ = tag.GetString("href")
794 mentions = append(mentions, m)
795 }
796 }
797 if starttime, ok := obj.GetString("startTime"); ok {
798 if start, err := time.Parse(time.RFC3339, starttime); err == nil {
799 t := new(Time)
800 t.StartTime = start
801 endtime, _ := obj.GetString("endTime")
802 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
803 dura, _ := obj.GetString("duration")
804 if strings.HasPrefix(dura, "PT") {
805 dura = strings.ToLower(dura[2:])
806 d, _ := time.ParseDuration(dura)
807 t.Duration = Duration(d)
808 }
809 xonk.Time = t
810 }
811 }
812 if loca, ok := obj.GetMap("location"); ok {
813 if tt, _ := loca.GetString("type"); tt == "Place" {
814 p := new(Place)
815 p.Name, _ = loca.GetString("name")
816 p.Latitude, _ = loca["latitude"].(float64)
817 p.Longitude, _ = loca["longitude"].(float64)
818 p.Url, _ = loca.GetString("url")
819 xonk.Place = p
820 }
821 }
822
823 xonk.Onts = oneofakind(xonk.Onts)
824 replyobj, ok := obj.GetMap("replies")
825 if ok {
826 items, ok := replyobj.GetArray("items")
827 if !ok {
828 first, ok := replyobj.GetMap("first")
829 if ok {
830 items, _ = first.GetArray("items")
831 }
832 }
833 for _, repl := range items {
834 s, ok := repl.(string)
835 if ok {
836 replies = append(replies, s)
837 }
838 }
839 }
840
841 }
842 if originate(xid) != origin {
843 log.Printf("original sin: %s <> %s", xid, origin)
844 item.Write(os.Stdout)
845 return nil
846 }
847
848 if currenttid == "" {
849 currenttid = convoy
850 }
851
852 if len(content) > 90001 {
853 log.Printf("content too long. truncating")
854 content = content[:90001]
855 }
856
857 // init xonk
858 xonk.What = what
859 xonk.XID = xid
860 xonk.RID = rid
861 xonk.Date, _ = time.Parse(time.RFC3339, dt)
862 xonk.URL = url
863 xonk.Noise = content
864 xonk.Precis = precis
865 xonk.Format = "html"
866 xonk.Convoy = convoy
867 xonk.Mentions = mentions
868 for _, m := range mentions {
869 if m.Where == user.URL {
870 xonk.Whofore = 1
871 }
872 }
873 imaginate(&xonk)
874
875 if isUpdate {
876 log.Printf("something has changed! %s", xonk.XID)
877 prev := getxonk(user.ID, xonk.XID)
878 if prev == nil {
879 log.Printf("didn't find old version for update: %s", xonk.XID)
880 isUpdate = false
881 } else {
882 xonk.ID = prev.ID
883 updatehonk(&xonk)
884 }
885 }
886 if !isUpdate && needxonk(user, &xonk) {
887 if strings.HasSuffix(convoy, "#context") {
888 // friendica...
889 if rid != "" {
890 convoy = ""
891 } else {
892 convoy = url
893 }
894 }
895 if rid != "" {
896 if needxonkid(user, rid) {
897 goingup++
898 saveonemore(rid)
899 goingup--
900 }
901 if convoy == "" {
902 xx := getxonk(user.ID, rid)
903 if xx != nil {
904 convoy = xx.Convoy
905 }
906 }
907 }
908 if convoy == "" {
909 convoy = currenttid
910 }
911 if convoy == "" {
912 convoy = "data:,missing-" + xfiltrate()
913 currenttid = convoy
914 }
915 xonk.Convoy = convoy
916 savexonk(&xonk)
917 }
918 if goingup == 0 {
919 for _, replid := range replies {
920 if needxonkid(user, replid) {
921 log.Printf("missing a reply: %s", replid)
922 saveonemore(replid)
923 }
924 }
925 }
926 return &xonk
927 }
928
929 return xonkxonkfn(item, origin)
930}
931
932func rubadubdub(user *WhatAbout, req junk.Junk) {
933 xid, _ := req.GetString("id")
934 actor, _ := req.GetString("actor")
935 j := junk.New()
936 j["@context"] = itiswhatitis
937 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
938 j["type"] = "Accept"
939 j["actor"] = user.URL
940 j["to"] = actor
941 j["published"] = time.Now().UTC().Format(time.RFC3339)
942 j["object"] = req
943
944 deliverate(0, user.ID, actor, j.ToBytes())
945}
946
947func itakeitallback(user *WhatAbout, xid string) {
948 j := junk.New()
949 j["@context"] = itiswhatitis
950 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
951 j["type"] = "Undo"
952 j["actor"] = user.URL
953 j["to"] = xid
954 f := junk.New()
955 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
956 f["type"] = "Follow"
957 f["actor"] = user.URL
958 f["to"] = xid
959 f["object"] = xid
960 j["object"] = f
961 j["published"] = time.Now().UTC().Format(time.RFC3339)
962
963 deliverate(0, user.ID, xid, j.ToBytes())
964}
965
966func subsub(user *WhatAbout, xid string, owner string) {
967 if xid == "" {
968 log.Printf("can't subscribe to empty")
969 return
970 }
971 j := junk.New()
972 j["@context"] = itiswhatitis
973 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
974 j["type"] = "Follow"
975 j["actor"] = user.URL
976 j["to"] = owner
977 j["object"] = xid
978 j["published"] = time.Now().UTC().Format(time.RFC3339)
979
980 deliverate(0, user.ID, owner, j.ToBytes())
981}
982
983// returns activity, object
984func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
985 dt := h.Date.Format(time.RFC3339)
986 var jo junk.Junk
987 j := junk.New()
988 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
989 j["actor"] = user.URL
990 j["published"] = dt
991 if h.Public {
992 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
993 } else {
994 j["to"] = h.Audience[0]
995 }
996 if len(h.Audience) > 1 {
997 j["cc"] = h.Audience[1:]
998 }
999
1000 switch h.What {
1001 case "update":
1002 fallthrough
1003 case "tonk":
1004 fallthrough
1005 case "event":
1006 fallthrough
1007 case "honk":
1008 j["type"] = "Create"
1009 if h.What == "update" {
1010 j["type"] = "Update"
1011 }
1012
1013 jo = junk.New()
1014 jo["id"] = h.XID
1015 jo["type"] = "Note"
1016 if h.What == "event" {
1017 jo["type"] = "Event"
1018 }
1019 jo["published"] = dt
1020 jo["url"] = h.XID
1021 jo["attributedTo"] = user.URL
1022 if h.RID != "" {
1023 jo["inReplyTo"] = h.RID
1024 }
1025 if h.Convoy != "" {
1026 jo["context"] = h.Convoy
1027 jo["conversation"] = h.Convoy
1028 }
1029 jo["to"] = h.Audience[0]
1030 if len(h.Audience) > 1 {
1031 jo["cc"] = h.Audience[1:]
1032 }
1033 if !h.Public {
1034 jo["directMessage"] = true
1035 }
1036 mentions := bunchofgrapes(h.Noise)
1037 translate(h)
1038 redoimages(h)
1039 jo["summary"] = html.EscapeString(h.Precis)
1040 jo["content"] = h.Noise
1041 if h.Precis != "" {
1042 jo["sensitive"] = true
1043 }
1044
1045 var replies []string
1046 for _, reply := range h.Replies {
1047 replies = append(replies, reply.XID)
1048 }
1049 if len(replies) > 0 {
1050 jr := junk.New()
1051 jr["type"] = "Collection"
1052 jr["totalItems"] = len(replies)
1053 jr["items"] = replies
1054 jo["replies"] = jr
1055 }
1056
1057 var tags []junk.Junk
1058 for _, m := range mentions {
1059 t := junk.New()
1060 t["type"] = "Mention"
1061 t["name"] = m.Who
1062 t["href"] = m.Where
1063 tags = append(tags, t)
1064 }
1065 for _, o := range h.Onts {
1066 t := junk.New()
1067 t["type"] = "Hashtag"
1068 o = strings.ToLower(o)
1069 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1070 t["name"] = o
1071 tags = append(tags, t)
1072 }
1073 for _, e := range herdofemus(h.Noise) {
1074 t := junk.New()
1075 t["id"] = e.ID
1076 t["type"] = "Emoji"
1077 t["name"] = e.Name
1078 i := junk.New()
1079 i["type"] = "Image"
1080 i["mediaType"] = "image/png"
1081 i["url"] = e.ID
1082 t["icon"] = i
1083 tags = append(tags, t)
1084 }
1085 if len(tags) > 0 {
1086 jo["tag"] = tags
1087 }
1088 if p := h.Place; p != nil {
1089 t := junk.New()
1090 t["type"] = "Place"
1091 if p.Name != "" {
1092 t["name"] = p.Name
1093 }
1094 if p.Latitude != 0 {
1095 t["latitude"] = p.Latitude
1096 }
1097 if p.Longitude != 0 {
1098 t["longitude"] = p.Longitude
1099 }
1100 if p.Url != "" {
1101 t["url"] = p.Url
1102 }
1103 jo["location"] = t
1104 }
1105 if t := h.Time; t != nil {
1106 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1107 if t.Duration != 0 {
1108 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1109 }
1110 }
1111 var atts []junk.Junk
1112 for _, d := range h.Donks {
1113 if re_emus.MatchString(d.Name) {
1114 continue
1115 }
1116 jd := junk.New()
1117 jd["mediaType"] = d.Media
1118 jd["name"] = d.Name
1119 jd["summary"] = html.EscapeString(d.Desc)
1120 jd["type"] = "Document"
1121 jd["url"] = d.URL
1122 atts = append(atts, jd)
1123 }
1124 if len(atts) > 0 {
1125 jo["attachment"] = atts
1126 }
1127 j["object"] = jo
1128 case "bonk":
1129 j["type"] = "Announce"
1130 if h.Convoy != "" {
1131 j["context"] = h.Convoy
1132 }
1133 j["object"] = h.XID
1134 case "unbonk":
1135 b := junk.New()
1136 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1137 b["type"] = "Announce"
1138 b["actor"] = user.URL
1139 if h.Convoy != "" {
1140 b["context"] = h.Convoy
1141 }
1142 b["object"] = h.XID
1143 j["type"] = "Undo"
1144 j["object"] = b
1145 case "zonk":
1146 j["type"] = "Delete"
1147 j["object"] = h.XID
1148 case "ack":
1149 j["type"] = "Read"
1150 j["object"] = h.XID
1151 if h.Convoy != "" {
1152 j["context"] = h.Convoy
1153 }
1154 case "deack":
1155 b := junk.New()
1156 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1157 b["type"] = "Read"
1158 b["actor"] = user.URL
1159 b["object"] = h.XID
1160 if h.Convoy != "" {
1161 b["context"] = h.Convoy
1162 }
1163 j["type"] = "Undo"
1164 j["object"] = b
1165 }
1166
1167 return j, jo
1168}
1169
1170var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1171 row := stmtAnyXonk.QueryRow(xid)
1172 honk := scanhonk(row)
1173 if honk == nil || !honk.Public {
1174 return nil, true
1175 }
1176 user, _ := butwhatabout(honk.Username)
1177 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1178 reversehonks(rawhonks)
1179 for _, h := range rawhonks {
1180 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1181 honk.Replies = append(honk.Replies, h)
1182 }
1183 }
1184 donksforhonks([]*Honk{honk})
1185 _, j := jonkjonk(user, honk)
1186 j["@context"] = itiswhatitis
1187
1188 return j.ToBytes(), true
1189}, Limit: 128})
1190
1191func gimmejonk(xid string) ([]byte, bool) {
1192 var j []byte
1193 ok := oldjonks.Get(xid, &j)
1194 return j, ok
1195}
1196
1197func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1198 rcpts := make(map[string]bool)
1199 for _, a := range addresses {
1200 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1201 continue
1202 }
1203 if a[0] == '%' {
1204 rcpts[a] = true
1205 continue
1206 }
1207 var box *Box
1208 ok := boxofboxes.Get(a, &box)
1209 if ok && useshared && box.Shared != "" {
1210 rcpts["%"+box.Shared] = true
1211 } else {
1212 rcpts[a] = true
1213 }
1214 }
1215 return rcpts
1216}
1217
1218func honkworldwide(user *WhatAbout, honk *Honk) {
1219 jonk, _ := jonkjonk(user, honk)
1220 jonk["@context"] = itiswhatitis
1221 msg := jonk.ToBytes()
1222
1223 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1224
1225 if honk.Public {
1226 for _, h := range getdubs(user.ID) {
1227 if h.XID == user.URL {
1228 continue
1229 }
1230 var box *Box
1231 ok := boxofboxes.Get(h.XID, &box)
1232 if ok && box.Shared != "" {
1233 rcpts["%"+box.Shared] = true
1234 } else {
1235 rcpts[h.XID] = true
1236 }
1237 }
1238 for _, f := range getbacktracks(honk.XID) {
1239 rcpts[f] = true
1240 }
1241 }
1242 for a := range rcpts {
1243 go deliverate(0, user.ID, a, msg)
1244 }
1245 if honk.Public && len(honk.Onts) > 0 {
1246 collectiveaction(honk)
1247 }
1248}
1249
1250func collectiveaction(honk *Honk) {
1251 user := getserveruser()
1252 for _, ont := range honk.Onts {
1253 dubs := getnameddubs(serverUID, ont)
1254 if len(dubs) == 0 {
1255 continue
1256 }
1257 j := junk.New()
1258 j["@context"] = itiswhatitis
1259 j["type"] = "Add"
1260 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1261 j["actor"] = user.URL
1262 j["object"] = honk.XID
1263 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1264 rcpts := make(map[string]bool)
1265 for _, dub := range dubs {
1266 var box *Box
1267 ok := boxofboxes.Get(dub.XID, &box)
1268 if ok && box.Shared != "" {
1269 rcpts["%"+box.Shared] = true
1270 } else {
1271 rcpts[dub.XID] = true
1272 }
1273 }
1274 msg := j.ToBytes()
1275 for a := range rcpts {
1276 go deliverate(0, user.ID, a, msg)
1277 }
1278 }
1279}
1280
1281func junkuser(user *WhatAbout) []byte {
1282 about := markitzero(user.About)
1283
1284 j := junk.New()
1285 j["@context"] = itiswhatitis
1286 j["id"] = user.URL
1287 j["inbox"] = user.URL + "/inbox"
1288 j["outbox"] = user.URL + "/outbox"
1289 j["name"] = user.Display
1290 j["preferredUsername"] = user.Name
1291 j["summary"] = about
1292 if user.ID > 0 {
1293 j["type"] = "Person"
1294 j["url"] = user.URL
1295 j["followers"] = user.URL + "/followers"
1296 j["following"] = user.URL + "/following"
1297 a := junk.New()
1298 a["type"] = "Image"
1299 a["mediaType"] = "image/png"
1300 if ava := user.Options.Avatar; ava != "" {
1301 a["url"] = ava
1302 } else {
1303 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1304 }
1305 j["icon"] = a
1306 } else {
1307 j["type"] = "Service"
1308 }
1309 k := junk.New()
1310 k["id"] = user.URL + "#key"
1311 k["owner"] = user.URL
1312 k["publicKeyPem"] = user.Key
1313 j["publicKey"] = k
1314
1315 return j.ToBytes()
1316}
1317
1318var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1319 user, err := butwhatabout(name)
1320 if err != nil {
1321 return nil, false
1322 }
1323 return junkuser(user), true
1324}, Duration: 1 * time.Minute})
1325
1326func asjonker(name string) ([]byte, bool) {
1327 var j []byte
1328 ok := oldjonkers.Get(name, &j)
1329 return j, ok
1330}
1331
1332var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1333 m := strings.Split(name, "@")
1334 if len(m) != 2 {
1335 log.Printf("bad fish name: %s", name)
1336 return "", true
1337 }
1338 var href string
1339 row := stmtGetXonker.QueryRow(name, "fishname")
1340 err := row.Scan(&href)
1341 if err == nil {
1342 return href, true
1343 }
1344 log.Printf("fishing for %s", name)
1345 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1346 if err != nil {
1347 log.Printf("failed to go fish %s: %s", name, err)
1348 return "", true
1349 }
1350 links, _ := j.GetArray("links")
1351 for _, li := range links {
1352 l, ok := li.(junk.Junk)
1353 if !ok {
1354 continue
1355 }
1356 href, _ := l.GetString("href")
1357 rel, _ := l.GetString("rel")
1358 t, _ := l.GetString("type")
1359 if rel == "self" && friendorfoe(t) {
1360 when := time.Now().UTC().Format(dbtimeformat)
1361 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1362 if err != nil {
1363 log.Printf("error saving fishname: %s", err)
1364 }
1365 return href, true
1366 }
1367 }
1368 return href, true
1369}})
1370
1371func gofish(name string) string {
1372 if name[0] == '@' {
1373 name = name[1:]
1374 }
1375 var href string
1376 handfull.Get(name, &href)
1377 return href
1378}
1379
1380func investigate(name string) (*SomeThing, error) {
1381 if name == "" {
1382 return nil, fmt.Errorf("no name")
1383 }
1384 if name[0] == '@' {
1385 name = gofish(name)
1386 }
1387 if name == "" {
1388 return nil, fmt.Errorf("no name")
1389 }
1390 obj, err := GetJunkFast(name)
1391 if err != nil {
1392 return nil, err
1393 }
1394 allinjest(originate(name), obj)
1395 return somethingabout(obj)
1396}
1397
1398func somethingabout(obj junk.Junk) (*SomeThing, error) {
1399 info := new(SomeThing)
1400 t, _ := obj.GetString("type")
1401 switch t {
1402 case "Person":
1403 fallthrough
1404 case "Organization":
1405 fallthrough
1406 case "Application":
1407 fallthrough
1408 case "Service":
1409 info.What = SomeActor
1410 case "OrderedCollection":
1411 fallthrough
1412 case "Collection":
1413 info.What = SomeCollection
1414 default:
1415 return nil, fmt.Errorf("unknown object type")
1416 }
1417 info.XID, _ = obj.GetString("id")
1418 info.Name, _ = obj.GetString("preferredUsername")
1419 if info.Name == "" {
1420 info.Name, _ = obj.GetString("name")
1421 }
1422 info.Owner, _ = obj.GetString("attributedTo")
1423 if info.Owner == "" {
1424 info.Owner = info.XID
1425 }
1426 return info, nil
1427}
1428
1429func allinjest(origin string, obj junk.Junk) {
1430 keyobj, ok := obj.GetMap("publicKey")
1431 if ok {
1432 ingestpubkey(origin, keyobj)
1433 }
1434 ingestboxes(origin, obj)
1435 ingesthandle(origin, obj)
1436}
1437
1438func ingestpubkey(origin string, obj junk.Junk) {
1439 keyobj, ok := obj.GetMap("publicKey")
1440 if ok {
1441 obj = keyobj
1442 }
1443 keyname, ok := obj.GetString("id")
1444 var data string
1445 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1446 err := row.Scan(&data)
1447 if err == nil {
1448 return
1449 }
1450 if !ok || origin != originate(keyname) {
1451 log.Printf("bad key origin %s <> %s", origin, keyname)
1452 return
1453 }
1454 log.Printf("ingesting a needed pubkey: %s", keyname)
1455 owner, ok := obj.GetString("owner")
1456 if !ok {
1457 log.Printf("error finding %s pubkey owner", keyname)
1458 return
1459 }
1460 data, ok = obj.GetString("publicKeyPem")
1461 if !ok {
1462 log.Printf("error finding %s pubkey", keyname)
1463 return
1464 }
1465 if originate(owner) != origin {
1466 log.Printf("bad key owner: %s <> %s", owner, origin)
1467 return
1468 }
1469 _, _, err = httpsig.DecodeKey(data)
1470 if err != nil {
1471 log.Printf("error decoding %s pubkey: %s", keyname, err)
1472 return
1473 }
1474 when := time.Now().UTC().Format(dbtimeformat)
1475 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1476 if err != nil {
1477 log.Printf("error saving key: %s", err)
1478 }
1479}
1480
1481func ingestboxes(origin string, obj junk.Junk) {
1482 ident, _ := obj.GetString("id")
1483 if ident == "" {
1484 return
1485 }
1486 if originate(ident) != origin {
1487 return
1488 }
1489 var info string
1490 row := stmtGetXonker.QueryRow(ident, "boxes")
1491 err := row.Scan(&info)
1492 if err == nil {
1493 return
1494 }
1495 log.Printf("ingesting boxes: %s", ident)
1496 inbox, _ := obj.GetString("inbox")
1497 outbox, _ := obj.GetString("outbox")
1498 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1499 if inbox != "" {
1500 when := time.Now().UTC().Format(dbtimeformat)
1501 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1502 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1503 if err != nil {
1504 log.Printf("error saving boxes: %s", err)
1505 }
1506 }
1507}
1508
1509func ingesthandle(origin string, obj junk.Junk) {
1510 xid, _ := obj.GetString("id")
1511 if xid == "" {
1512 return
1513 }
1514 if originate(xid) != origin {
1515 return
1516 }
1517 var handle string
1518 row := stmtGetXonker.QueryRow(xid, "handle")
1519 err := row.Scan(&handle)
1520 if err == nil {
1521 return
1522 }
1523 handle, _ = obj.GetString("preferredUsername")
1524 if handle != "" {
1525 when := time.Now().UTC().Format(dbtimeformat)
1526 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1527 if err != nil {
1528 log.Printf("error saving handle: %s", err)
1529 }
1530 }
1531}