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 _, ok := obj.GetString("diaspora:guid")
608 if ok {
609 // friendica does the silliest bonks
610 c, ok := obj.GetString("source", "content")
611 if ok {
612 re_link := regexp.MustCompile(`link='([^']*)'`)
613 m := re_link.FindStringSubmatch(c)
614 if len(m) > 1 {
615 xid := m[1]
616 log.Printf("getting friendica flavored bonk: %s", xid)
617 if !needxonkid(user, xid) {
618 return nil
619 }
620 newobj, err := GetJunkHardMode(xid)
621 if err != nil {
622 log.Printf("error getting bonk: %s: %s", xid, err)
623 } else {
624 obj = newobj
625 origin = originate(xid)
626 what = "bonk"
627 }
628 }
629 }
630 }
631 }
632
633 var xonk Honk
634 // early init
635 xonk.UserID = user.ID
636 xonk.Honker, _ = item.GetString("actor")
637 if xonk.Honker == "" {
638 xonk.Honker, _ = item.GetString("attributedTo")
639 }
640 if obj != nil {
641 if xonk.Honker == "" {
642 xonk.Honker = extractattrto(obj)
643 }
644 xonk.Oonker = extractattrto(obj)
645 if xonk.Oonker == xonk.Honker {
646 xonk.Oonker = ""
647 }
648 xonk.Audience = newphone(nil, obj)
649 }
650 xonk.Audience = append(xonk.Audience, xonk.Honker)
651 xonk.Audience = oneofakind(xonk.Audience)
652
653 var mentions []Mention
654 if obj != nil {
655 ot, _ := obj.GetString("type")
656 url, _ = obj.GetString("url")
657 dt2, ok := obj.GetString("published")
658 if ok {
659 dt = dt2
660 }
661 xid, _ = obj.GetString("id")
662 precis, _ = obj.GetString("summary")
663 if precis == "" {
664 precis, _ = obj.GetString("name")
665 }
666 content, _ = obj.GetString("content")
667 if !strings.HasPrefix(content, "<p>") {
668 content = "<p>" + content
669 }
670 sens, _ := obj["sensitive"].(bool)
671 if sens && precis == "" {
672 precis = "unspecified horror"
673 }
674 rid, ok = obj.GetString("inReplyTo")
675 if !ok {
676 robj, ok := obj.GetMap("inReplyTo")
677 if ok {
678 rid, _ = robj.GetString("id")
679 }
680 }
681 convoy, _ = obj.GetString("context")
682 if convoy == "" {
683 convoy, _ = obj.GetString("conversation")
684 }
685 if ot == "Question" {
686 if what == "honk" {
687 what = "qonk"
688 }
689 content += "<ul>"
690 ans, _ := obj.GetArray("oneOf")
691 for _, ai := range ans {
692 a, ok := ai.(junk.Junk)
693 if !ok {
694 continue
695 }
696 as, _ := a.GetString("name")
697 content += "<li>" + as
698 }
699 ans, _ = obj.GetArray("anyOf")
700 for _, ai := range ans {
701 a, ok := ai.(junk.Junk)
702 if !ok {
703 continue
704 }
705 as, _ := a.GetString("name")
706 content += "<li>" + as
707 }
708 content += "</ul>"
709 }
710 if ot == "Move" {
711 targ, _ := obj.GetString("target")
712 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
713 }
714 if what == "honk" && rid != "" {
715 what = "tonk"
716 }
717 atts, _ := obj.GetArray("attachment")
718 for i, atti := range atts {
719 att, ok := atti.(junk.Junk)
720 if !ok {
721 continue
722 }
723 at, _ := att.GetString("type")
724 mt, _ := att.GetString("mediaType")
725 u, _ := att.GetString("url")
726 name, _ := att.GetString("name")
727 desc, _ := att.GetString("summary")
728 if desc == "" {
729 desc = name
730 }
731 localize := false
732 if i > 4 {
733 log.Printf("excessive attachment: %s", at)
734 } else if at == "Document" || at == "Image" {
735 mt = strings.ToLower(mt)
736 log.Printf("attachment: %s %s", mt, u)
737 if mt == "text/plain" || mt == "application/pdf" ||
738 strings.HasPrefix(mt, "image") {
739 localize = true
740 }
741 } else {
742 log.Printf("unknown attachment: %s", at)
743 }
744 if skipMedia(&xonk) {
745 localize = false
746 }
747 donk := savedonk(u, name, desc, mt, localize)
748 if donk != nil {
749 xonk.Donks = append(xonk.Donks, donk)
750 }
751 }
752 tags, _ := obj.GetArray("tag")
753 for _, tagi := range tags {
754 tag, ok := tagi.(junk.Junk)
755 if !ok {
756 continue
757 }
758 tt, _ := tag.GetString("type")
759 name, _ := tag.GetString("name")
760 desc, _ := tag.GetString("summary")
761 if desc == "" {
762 desc = name
763 }
764 if tt == "Emoji" {
765 icon, _ := tag.GetMap("icon")
766 mt, _ := icon.GetString("mediaType")
767 if mt == "" {
768 mt = "image/png"
769 }
770 u, _ := icon.GetString("url")
771 donk := savedonk(u, name, desc, mt, true)
772 if donk != nil {
773 xonk.Donks = append(xonk.Donks, donk)
774 }
775 }
776 if tt == "Hashtag" {
777 if name == "" || name == "#" {
778 // skip it
779 } else {
780 if name[0] != '#' {
781 name = "#" + name
782 }
783 xonk.Onts = append(xonk.Onts, name)
784 }
785 }
786 if tt == "Place" {
787 p := new(Place)
788 p.Name = name
789 p.Latitude, _ = tag["latitude"].(float64)
790 p.Longitude, _ = tag["longitude"].(float64)
791 p.Url, _ = tag.GetString("url")
792 xonk.Place = p
793 }
794 if tt == "Mention" {
795 var m Mention
796 m.Who, _ = tag.GetString("name")
797 m.Where, _ = tag.GetString("href")
798 mentions = append(mentions, m)
799 }
800 }
801 starttime, ok := obj.GetString("startTime")
802 if ok {
803 start, err := time.Parse(time.RFC3339, starttime)
804 if err == nil {
805 t := new(Time)
806 t.StartTime = start
807 endtime, _ := obj.GetString("endTime")
808 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
809 dura, _ := obj.GetString("duration")
810 if strings.HasPrefix(dura, "PT") {
811 dura = strings.ToLower(dura[2:])
812 d, _ := time.ParseDuration(dura)
813 t.Duration = Duration(d)
814 }
815 xonk.Time = t
816 }
817 }
818 loca, ok := obj.GetMap("location")
819 if ok {
820 tt, _ := loca.GetString("type")
821 name, _ := loca.GetString("name")
822 if tt == "Place" {
823 p := new(Place)
824 p.Name = name
825 p.Latitude, _ = loca["latitude"].(float64)
826 p.Longitude, _ = loca["longitude"].(float64)
827 p.Url, _ = loca.GetString("url")
828 xonk.Place = p
829 }
830 }
831
832 xonk.Onts = oneofakind(xonk.Onts)
833 replyobj, ok := obj.GetMap("replies")
834 if ok {
835 items, ok := replyobj.GetArray("items")
836 if !ok {
837 first, ok := replyobj.GetMap("first")
838 if ok {
839 items, _ = first.GetArray("items")
840 }
841 }
842 for _, repl := range items {
843 s, ok := repl.(string)
844 if ok {
845 replies = append(replies, s)
846 }
847 }
848 }
849
850 }
851 if originate(xid) != origin {
852 log.Printf("original sin: %s <> %s", xid, origin)
853 item.Write(os.Stdout)
854 return nil
855 }
856
857 if currenttid == "" {
858 currenttid = convoy
859 }
860
861 if len(content) > 90001 {
862 log.Printf("content too long. truncating")
863 content = content[:90001]
864 }
865
866 // init xonk
867 xonk.What = what
868 xonk.XID = xid
869 xonk.RID = rid
870 xonk.Date, _ = time.Parse(time.RFC3339, dt)
871 xonk.URL = url
872 xonk.Noise = content
873 xonk.Precis = precis
874 xonk.Format = "html"
875 xonk.Convoy = convoy
876 xonk.Mentions = mentions
877 for _, m := range mentions {
878 if m.Where == user.URL {
879 xonk.Whofore = 1
880 }
881 }
882 imaginate(&xonk)
883
884 if isUpdate {
885 log.Printf("something has changed! %s", xonk.XID)
886 prev := getxonk(user.ID, xonk.XID)
887 if prev == nil {
888 log.Printf("didn't find old version for update: %s", xonk.XID)
889 isUpdate = false
890 } else {
891 xonk.ID = prev.ID
892 updatehonk(&xonk)
893 }
894 }
895 if !isUpdate && needxonk(user, &xonk) {
896 if strings.HasSuffix(convoy, "#context") {
897 // friendica...
898 if rid != "" {
899 convoy = ""
900 } else {
901 convoy = url
902 }
903 }
904 if rid != "" {
905 if needxonkid(user, rid) {
906 goingup++
907 saveonemore(rid)
908 goingup--
909 }
910 if convoy == "" {
911 xx := getxonk(user.ID, rid)
912 if xx != nil {
913 convoy = xx.Convoy
914 }
915 }
916 }
917 if convoy == "" {
918 convoy = currenttid
919 }
920 if convoy == "" {
921 convoy = "data:,missing-" + xfiltrate()
922 currenttid = convoy
923 }
924 xonk.Convoy = convoy
925 savexonk(&xonk)
926 }
927 if goingup == 0 {
928 for _, replid := range replies {
929 if needxonkid(user, replid) {
930 log.Printf("missing a reply: %s", replid)
931 saveonemore(replid)
932 }
933 }
934 }
935 return &xonk
936 }
937
938 return xonkxonkfn(item, origin)
939}
940
941func rubadubdub(user *WhatAbout, req junk.Junk) {
942 xid, _ := req.GetString("id")
943 actor, _ := req.GetString("actor")
944 j := junk.New()
945 j["@context"] = itiswhatitis
946 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
947 j["type"] = "Accept"
948 j["actor"] = user.URL
949 j["to"] = actor
950 j["published"] = time.Now().UTC().Format(time.RFC3339)
951 j["object"] = req
952
953 deliverate(0, user.ID, actor, j.ToBytes())
954}
955
956func itakeitallback(user *WhatAbout, xid string) {
957 j := junk.New()
958 j["@context"] = itiswhatitis
959 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
960 j["type"] = "Undo"
961 j["actor"] = user.URL
962 j["to"] = xid
963 f := junk.New()
964 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
965 f["type"] = "Follow"
966 f["actor"] = user.URL
967 f["to"] = xid
968 f["object"] = xid
969 j["object"] = f
970 j["published"] = time.Now().UTC().Format(time.RFC3339)
971
972 deliverate(0, user.ID, xid, j.ToBytes())
973}
974
975func subsub(user *WhatAbout, xid string, owner string) {
976 if xid == "" {
977 log.Printf("can't subscribe to empty")
978 return
979 }
980 j := junk.New()
981 j["@context"] = itiswhatitis
982 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
983 j["type"] = "Follow"
984 j["actor"] = user.URL
985 j["to"] = owner
986 j["object"] = xid
987 j["published"] = time.Now().UTC().Format(time.RFC3339)
988
989 deliverate(0, user.ID, owner, j.ToBytes())
990}
991
992// returns activity, object
993func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
994 dt := h.Date.Format(time.RFC3339)
995 var jo junk.Junk
996 j := junk.New()
997 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
998 j["actor"] = user.URL
999 j["published"] = dt
1000 if h.Public {
1001 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
1002 } else {
1003 j["to"] = h.Audience[0]
1004 }
1005 if len(h.Audience) > 1 {
1006 j["cc"] = h.Audience[1:]
1007 }
1008
1009 switch h.What {
1010 case "update":
1011 fallthrough
1012 case "tonk":
1013 fallthrough
1014 case "event":
1015 fallthrough
1016 case "honk":
1017 j["type"] = "Create"
1018 if h.What == "update" {
1019 j["type"] = "Update"
1020 }
1021
1022 jo = junk.New()
1023 jo["id"] = h.XID
1024 jo["type"] = "Note"
1025 if h.What == "event" {
1026 jo["type"] = "Event"
1027 }
1028 jo["published"] = dt
1029 jo["url"] = h.XID
1030 jo["attributedTo"] = user.URL
1031 if h.RID != "" {
1032 jo["inReplyTo"] = h.RID
1033 }
1034 if h.Convoy != "" {
1035 jo["context"] = h.Convoy
1036 jo["conversation"] = h.Convoy
1037 }
1038 jo["to"] = h.Audience[0]
1039 if len(h.Audience) > 1 {
1040 jo["cc"] = h.Audience[1:]
1041 }
1042 if !h.Public {
1043 jo["directMessage"] = true
1044 }
1045 mentions := bunchofgrapes(h.Noise)
1046 translate(h)
1047 redoimages(h)
1048 jo["summary"] = html.EscapeString(h.Precis)
1049 jo["content"] = h.Noise
1050 if h.Precis != "" {
1051 jo["sensitive"] = true
1052 }
1053
1054 var replies []string
1055 for _, reply := range h.Replies {
1056 replies = append(replies, reply.XID)
1057 }
1058 if len(replies) > 0 {
1059 jr := junk.New()
1060 jr["type"] = "Collection"
1061 jr["totalItems"] = len(replies)
1062 jr["items"] = replies
1063 jo["replies"] = jr
1064 }
1065
1066 var tags []junk.Junk
1067 for _, m := range mentions {
1068 t := junk.New()
1069 t["type"] = "Mention"
1070 t["name"] = m.Who
1071 t["href"] = m.Where
1072 tags = append(tags, t)
1073 }
1074 for _, o := range h.Onts {
1075 t := junk.New()
1076 t["type"] = "Hashtag"
1077 o = strings.ToLower(o)
1078 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1079 t["name"] = o
1080 tags = append(tags, t)
1081 }
1082 for _, e := range herdofemus(h.Noise) {
1083 t := junk.New()
1084 t["id"] = e.ID
1085 t["type"] = "Emoji"
1086 t["name"] = e.Name
1087 i := junk.New()
1088 i["type"] = "Image"
1089 i["mediaType"] = "image/png"
1090 i["url"] = e.ID
1091 t["icon"] = i
1092 tags = append(tags, t)
1093 }
1094 if len(tags) > 0 {
1095 jo["tag"] = tags
1096 }
1097 if p := h.Place; p != nil {
1098 t := junk.New()
1099 t["type"] = "Place"
1100 if p.Name != "" {
1101 t["name"] = p.Name
1102 }
1103 if p.Latitude != 0 {
1104 t["latitude"] = p.Latitude
1105 }
1106 if p.Longitude != 0 {
1107 t["longitude"] = p.Longitude
1108 }
1109 if p.Url != "" {
1110 t["url"] = p.Url
1111 }
1112 jo["location"] = t
1113 }
1114 if t := h.Time; t != nil {
1115 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1116 if t.Duration != 0 {
1117 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1118 }
1119 }
1120 var atts []junk.Junk
1121 for _, d := range h.Donks {
1122 if re_emus.MatchString(d.Name) {
1123 continue
1124 }
1125 jd := junk.New()
1126 jd["mediaType"] = d.Media
1127 jd["name"] = d.Name
1128 jd["summary"] = html.EscapeString(d.Desc)
1129 jd["type"] = "Document"
1130 jd["url"] = d.URL
1131 atts = append(atts, jd)
1132 }
1133 if len(atts) > 0 {
1134 jo["attachment"] = atts
1135 }
1136 j["object"] = jo
1137 case "bonk":
1138 j["type"] = "Announce"
1139 if h.Convoy != "" {
1140 j["context"] = h.Convoy
1141 }
1142 j["object"] = h.XID
1143 case "unbonk":
1144 b := junk.New()
1145 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1146 b["type"] = "Announce"
1147 b["actor"] = user.URL
1148 if h.Convoy != "" {
1149 b["context"] = h.Convoy
1150 }
1151 b["object"] = h.XID
1152 j["type"] = "Undo"
1153 j["object"] = b
1154 case "zonk":
1155 j["type"] = "Delete"
1156 j["object"] = h.XID
1157 case "ack":
1158 j["type"] = "Read"
1159 j["object"] = h.XID
1160 if h.Convoy != "" {
1161 j["context"] = h.Convoy
1162 }
1163 case "deack":
1164 b := junk.New()
1165 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1166 b["type"] = "Read"
1167 b["actor"] = user.URL
1168 b["object"] = h.XID
1169 if h.Convoy != "" {
1170 b["context"] = h.Convoy
1171 }
1172 j["type"] = "Undo"
1173 j["object"] = b
1174 }
1175
1176 return j, jo
1177}
1178
1179var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1180 row := stmtAnyXonk.QueryRow(xid)
1181 honk := scanhonk(row)
1182 if honk == nil || !honk.Public {
1183 return nil, true
1184 }
1185 user, _ := butwhatabout(honk.Username)
1186 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1187 reversehonks(rawhonks)
1188 for _, h := range rawhonks {
1189 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1190 honk.Replies = append(honk.Replies, h)
1191 }
1192 }
1193 donksforhonks([]*Honk{honk})
1194 _, j := jonkjonk(user, honk)
1195 j["@context"] = itiswhatitis
1196
1197 return j.ToBytes(), true
1198}, Limit: 128})
1199
1200func gimmejonk(xid string) ([]byte, bool) {
1201 var j []byte
1202 ok := oldjonks.Get(xid, &j)
1203 return j, ok
1204}
1205
1206func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1207 rcpts := make(map[string]bool)
1208 for _, a := range addresses {
1209 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1210 continue
1211 }
1212 if a[0] == '%' {
1213 rcpts[a] = true
1214 continue
1215 }
1216 var box *Box
1217 ok := boxofboxes.Get(a, &box)
1218 if ok && useshared && box.Shared != "" {
1219 rcpts["%"+box.Shared] = true
1220 } else {
1221 rcpts[a] = true
1222 }
1223 }
1224 return rcpts
1225}
1226
1227func honkworldwide(user *WhatAbout, honk *Honk) {
1228 jonk, _ := jonkjonk(user, honk)
1229 jonk["@context"] = itiswhatitis
1230 msg := jonk.ToBytes()
1231
1232 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1233
1234 if honk.Public {
1235 for _, h := range getdubs(user.ID) {
1236 if h.XID == user.URL {
1237 continue
1238 }
1239 var box *Box
1240 ok := boxofboxes.Get(h.XID, &box)
1241 if ok && box.Shared != "" {
1242 rcpts["%"+box.Shared] = true
1243 } else {
1244 rcpts[h.XID] = true
1245 }
1246 }
1247 for _, f := range getbacktracks(honk.XID) {
1248 rcpts[f] = true
1249 }
1250 }
1251 for a := range rcpts {
1252 go deliverate(0, user.ID, a, msg)
1253 }
1254 if honk.Public && len(honk.Onts) > 0 {
1255 collectiveaction(honk)
1256 }
1257}
1258
1259func collectiveaction(honk *Honk) {
1260 user := getserveruser()
1261 for _, ont := range honk.Onts {
1262 dubs := getnameddubs(serverUID, ont)
1263 if len(dubs) == 0 {
1264 continue
1265 }
1266 j := junk.New()
1267 j["@context"] = itiswhatitis
1268 j["type"] = "Add"
1269 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1270 j["actor"] = user.URL
1271 j["object"] = honk.XID
1272 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1273 rcpts := make(map[string]bool)
1274 for _, dub := range dubs {
1275 var box *Box
1276 ok := boxofboxes.Get(dub.XID, &box)
1277 if ok && box.Shared != "" {
1278 rcpts["%"+box.Shared] = true
1279 } else {
1280 rcpts[dub.XID] = true
1281 }
1282 }
1283 msg := j.ToBytes()
1284 for a := range rcpts {
1285 go deliverate(0, user.ID, a, msg)
1286 }
1287 }
1288}
1289
1290func junkuser(user *WhatAbout) []byte {
1291 about := markitzero(user.About)
1292
1293 j := junk.New()
1294 j["@context"] = itiswhatitis
1295 j["id"] = user.URL
1296 j["inbox"] = user.URL + "/inbox"
1297 j["outbox"] = user.URL + "/outbox"
1298 j["name"] = user.Display
1299 j["preferredUsername"] = user.Name
1300 j["summary"] = about
1301 if user.ID > 0 {
1302 j["type"] = "Person"
1303 j["url"] = user.URL
1304 j["followers"] = user.URL + "/followers"
1305 j["following"] = user.URL + "/following"
1306 a := junk.New()
1307 a["type"] = "Image"
1308 a["mediaType"] = "image/png"
1309 if ava := user.Options.Avatar; ava != "" {
1310 a["url"] = ava
1311 } else {
1312 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1313 }
1314 j["icon"] = a
1315 } else {
1316 j["type"] = "Service"
1317 }
1318 k := junk.New()
1319 k["id"] = user.URL + "#key"
1320 k["owner"] = user.URL
1321 k["publicKeyPem"] = user.Key
1322 j["publicKey"] = k
1323
1324 return j.ToBytes()
1325}
1326
1327var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1328 user, err := butwhatabout(name)
1329 if err != nil {
1330 return nil, false
1331 }
1332 return junkuser(user), true
1333}, Duration: 1 * time.Minute})
1334
1335func asjonker(name string) ([]byte, bool) {
1336 var j []byte
1337 ok := oldjonkers.Get(name, &j)
1338 return j, ok
1339}
1340
1341var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1342 m := strings.Split(name, "@")
1343 if len(m) != 2 {
1344 log.Printf("bad fish name: %s", name)
1345 return "", true
1346 }
1347 var href string
1348 row := stmtGetXonker.QueryRow(name, "fishname")
1349 err := row.Scan(&href)
1350 if err == nil {
1351 return href, true
1352 }
1353 log.Printf("fishing for %s", name)
1354 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1355 if err != nil {
1356 log.Printf("failed to go fish %s: %s", name, err)
1357 return "", true
1358 }
1359 links, _ := j.GetArray("links")
1360 for _, li := range links {
1361 l, ok := li.(junk.Junk)
1362 if !ok {
1363 continue
1364 }
1365 href, _ := l.GetString("href")
1366 rel, _ := l.GetString("rel")
1367 t, _ := l.GetString("type")
1368 if rel == "self" && friendorfoe(t) {
1369 when := time.Now().UTC().Format(dbtimeformat)
1370 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1371 if err != nil {
1372 log.Printf("error saving fishname: %s", err)
1373 }
1374 return href, true
1375 }
1376 }
1377 return href, true
1378}})
1379
1380func gofish(name string) string {
1381 if name[0] == '@' {
1382 name = name[1:]
1383 }
1384 var href string
1385 handfull.Get(name, &href)
1386 return href
1387}
1388
1389func investigate(name string) (*SomeThing, error) {
1390 if name == "" {
1391 return nil, fmt.Errorf("no name")
1392 }
1393 if name[0] == '@' {
1394 name = gofish(name)
1395 }
1396 if name == "" {
1397 return nil, fmt.Errorf("no name")
1398 }
1399 obj, err := GetJunkFast(name)
1400 if err != nil {
1401 return nil, err
1402 }
1403 allinjest(originate(name), obj)
1404 return somethingabout(obj)
1405}
1406
1407func somethingabout(obj junk.Junk) (*SomeThing, error) {
1408 info := new(SomeThing)
1409 t, _ := obj.GetString("type")
1410 switch t {
1411 case "Person":
1412 fallthrough
1413 case "Organization":
1414 fallthrough
1415 case "Application":
1416 fallthrough
1417 case "Service":
1418 info.What = SomeActor
1419 case "OrderedCollection":
1420 fallthrough
1421 case "Collection":
1422 info.What = SomeCollection
1423 default:
1424 return nil, fmt.Errorf("unknown object type")
1425 }
1426 info.XID, _ = obj.GetString("id")
1427 info.Name, _ = obj.GetString("preferredUsername")
1428 if info.Name == "" {
1429 info.Name, _ = obj.GetString("name")
1430 }
1431 info.Owner, _ = obj.GetString("attributedTo")
1432 if info.Owner == "" {
1433 info.Owner = info.XID
1434 }
1435 return info, nil
1436}
1437
1438func allinjest(origin string, obj junk.Junk) {
1439 keyobj, ok := obj.GetMap("publicKey")
1440 if ok {
1441 ingestpubkey(origin, keyobj)
1442 }
1443 ingestboxes(origin, obj)
1444 ingesthandle(origin, obj)
1445}
1446
1447func ingestpubkey(origin string, obj junk.Junk) {
1448 keyobj, ok := obj.GetMap("publicKey")
1449 if ok {
1450 obj = keyobj
1451 }
1452 keyname, ok := obj.GetString("id")
1453 var data string
1454 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1455 err := row.Scan(&data)
1456 if err == nil {
1457 return
1458 }
1459 if !ok || origin != originate(keyname) {
1460 log.Printf("bad key origin %s <> %s", origin, keyname)
1461 return
1462 }
1463 log.Printf("ingesting a needed pubkey: %s", keyname)
1464 owner, ok := obj.GetString("owner")
1465 if !ok {
1466 log.Printf("error finding %s pubkey owner", keyname)
1467 return
1468 }
1469 data, ok = obj.GetString("publicKeyPem")
1470 if !ok {
1471 log.Printf("error finding %s pubkey", keyname)
1472 return
1473 }
1474 if originate(owner) != origin {
1475 log.Printf("bad key owner: %s <> %s", owner, origin)
1476 return
1477 }
1478 _, _, err = httpsig.DecodeKey(data)
1479 if err != nil {
1480 log.Printf("error decoding %s pubkey: %s", keyname, err)
1481 return
1482 }
1483 when := time.Now().UTC().Format(dbtimeformat)
1484 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1485 if err != nil {
1486 log.Printf("error saving key: %s", err)
1487 }
1488}
1489
1490func ingestboxes(origin string, obj junk.Junk) {
1491 ident, _ := obj.GetString("id")
1492 if ident == "" {
1493 return
1494 }
1495 if originate(ident) != origin {
1496 return
1497 }
1498 var info string
1499 row := stmtGetXonker.QueryRow(ident, "boxes")
1500 err := row.Scan(&info)
1501 if err == nil {
1502 return
1503 }
1504 log.Printf("ingesting boxes: %s", ident)
1505 inbox, _ := obj.GetString("inbox")
1506 outbox, _ := obj.GetString("outbox")
1507 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1508 if inbox != "" {
1509 when := time.Now().UTC().Format(dbtimeformat)
1510 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1511 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1512 if err != nil {
1513 log.Printf("error saving boxes: %s", err)
1514 }
1515 }
1516}
1517
1518func ingesthandle(origin string, obj junk.Junk) {
1519 xid, _ := obj.GetString("id")
1520 if xid == "" {
1521 return
1522 }
1523 if originate(xid) != origin {
1524 return
1525 }
1526 var handle string
1527 row := stmtGetXonker.QueryRow(xid, "handle")
1528 err := row.Scan(&handle)
1529 if err == nil {
1530 return
1531 }
1532 handle, _ = obj.GetString("preferredUsername")
1533 if handle != "" {
1534 when := time.Now().UTC().Format(dbtimeformat)
1535 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1536 if err != nil {
1537 log.Printf("error saving handle: %s", err)
1538 }
1539 }
1540}