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