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 name, ok := obj.GetString("name"); ok {
664 if precis != "" {
665 precis = "\n" + precis
666 }
667 precis = name + precis
668 }
669 content, _ = obj.GetString("content")
670 if !strings.HasPrefix(content, "<p>") {
671 content = "<p>" + content
672 }
673 sens, _ := obj["sensitive"].(bool)
674 if sens && precis == "" {
675 precis = "unspecified horror"
676 }
677 rid, ok = obj.GetString("inReplyTo")
678 if !ok {
679 robj, ok := obj.GetMap("inReplyTo")
680 if ok {
681 rid, _ = robj.GetString("id")
682 }
683 }
684 convoy, _ = obj.GetString("context")
685 if convoy == "" {
686 convoy, _ = obj.GetString("conversation")
687 }
688 if ot == "Question" {
689 if what == "honk" {
690 what = "qonk"
691 }
692 content += "<ul>"
693 ans, _ := obj.GetArray("oneOf")
694 for _, ai := range ans {
695 a, ok := ai.(junk.Junk)
696 if !ok {
697 continue
698 }
699 as, _ := a.GetString("name")
700 content += "<li>" + as
701 }
702 ans, _ = obj.GetArray("anyOf")
703 for _, ai := range ans {
704 a, ok := ai.(junk.Junk)
705 if !ok {
706 continue
707 }
708 as, _ := a.GetString("name")
709 content += "<li>" + as
710 }
711 content += "</ul>"
712 }
713 if ot == "Move" {
714 targ, _ := obj.GetString("target")
715 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
716 }
717 if what == "honk" && rid != "" {
718 what = "tonk"
719 }
720 atts, _ := obj.GetArray("attachment")
721 for i, atti := range atts {
722 att, ok := atti.(junk.Junk)
723 if !ok {
724 continue
725 }
726 at, _ := att.GetString("type")
727 mt, _ := att.GetString("mediaType")
728 u, _ := att.GetString("url")
729 name, _ := att.GetString("name")
730 desc, _ := att.GetString("summary")
731 if desc == "" {
732 desc = name
733 }
734 localize := false
735 if i > 4 {
736 log.Printf("excessive attachment: %s", at)
737 } else if at == "Document" || at == "Image" {
738 mt = strings.ToLower(mt)
739 log.Printf("attachment: %s %s", mt, u)
740 if mt == "text/plain" || mt == "application/pdf" ||
741 strings.HasPrefix(mt, "image") {
742 localize = true
743 }
744 } else {
745 log.Printf("unknown attachment: %s", at)
746 }
747 if skipMedia(&xonk) {
748 localize = false
749 }
750 donk := savedonk(u, name, desc, mt, localize)
751 if donk != nil {
752 xonk.Donks = append(xonk.Donks, donk)
753 }
754 }
755 tags, _ := obj.GetArray("tag")
756 for _, tagi := range tags {
757 tag, ok := tagi.(junk.Junk)
758 if !ok {
759 continue
760 }
761 tt, _ := tag.GetString("type")
762 name, _ := tag.GetString("name")
763 desc, _ := tag.GetString("summary")
764 if desc == "" {
765 desc = name
766 }
767 if tt == "Emoji" {
768 icon, _ := tag.GetMap("icon")
769 mt, _ := icon.GetString("mediaType")
770 if mt == "" {
771 mt = "image/png"
772 }
773 u, _ := icon.GetString("url")
774 donk := savedonk(u, name, desc, mt, true)
775 if donk != nil {
776 xonk.Donks = append(xonk.Donks, donk)
777 }
778 }
779 if tt == "Hashtag" {
780 if name == "" || name == "#" {
781 // skip it
782 } else {
783 if name[0] != '#' {
784 name = "#" + name
785 }
786 xonk.Onts = append(xonk.Onts, name)
787 }
788 }
789 if tt == "Place" {
790 p := new(Place)
791 p.Name = name
792 p.Latitude, _ = tag["latitude"].(float64)
793 p.Longitude, _ = tag["longitude"].(float64)
794 p.Url, _ = tag.GetString("url")
795 xonk.Place = p
796 }
797 if tt == "Mention" {
798 var m Mention
799 m.Who, _ = tag.GetString("name")
800 m.Where, _ = tag.GetString("href")
801 mentions = append(mentions, m)
802 }
803 }
804 starttime, ok := obj.GetString("startTime")
805 if ok {
806 start, err := time.Parse(time.RFC3339, starttime)
807 if err == nil {
808 t := new(Time)
809 t.StartTime = start
810 endtime, _ := obj.GetString("endTime")
811 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
812 dura, _ := obj.GetString("duration")
813 if strings.HasPrefix(dura, "PT") {
814 dura = strings.ToLower(dura[2:])
815 d, _ := time.ParseDuration(dura)
816 t.Duration = Duration(d)
817 }
818 xonk.Time = t
819 }
820 }
821 loca, ok := obj.GetMap("location")
822 if ok {
823 tt, _ := loca.GetString("type")
824 name, _ := loca.GetString("name")
825 if tt == "Place" {
826 p := new(Place)
827 p.Name = name
828 p.Latitude, _ = loca["latitude"].(float64)
829 p.Longitude, _ = loca["longitude"].(float64)
830 p.Url, _ = loca.GetString("url")
831 xonk.Place = p
832 }
833 }
834
835 xonk.Onts = oneofakind(xonk.Onts)
836 replyobj, ok := obj.GetMap("replies")
837 if ok {
838 items, ok := replyobj.GetArray("items")
839 if !ok {
840 first, ok := replyobj.GetMap("first")
841 if ok {
842 items, _ = first.GetArray("items")
843 }
844 }
845 for _, repl := range items {
846 s, ok := repl.(string)
847 if ok {
848 replies = append(replies, s)
849 }
850 }
851 }
852
853 }
854 if originate(xid) != origin {
855 log.Printf("original sin: %s <> %s", xid, origin)
856 item.Write(os.Stdout)
857 return nil
858 }
859
860 if currenttid == "" {
861 currenttid = convoy
862 }
863
864 if len(content) > 90001 {
865 log.Printf("content too long. truncating")
866 content = content[:90001]
867 }
868
869 // init xonk
870 xonk.What = what
871 xonk.XID = xid
872 xonk.RID = rid
873 xonk.Date, _ = time.Parse(time.RFC3339, dt)
874 xonk.URL = url
875 xonk.Noise = content
876 xonk.Precis = precis
877 xonk.Format = "html"
878 xonk.Convoy = convoy
879 xonk.Mentions = mentions
880 for _, m := range mentions {
881 if m.Where == user.URL {
882 xonk.Whofore = 1
883 }
884 }
885 imaginate(&xonk)
886
887 if isUpdate {
888 log.Printf("something has changed! %s", xonk.XID)
889 prev := getxonk(user.ID, xonk.XID)
890 if prev == nil {
891 log.Printf("didn't find old version for update: %s", xonk.XID)
892 isUpdate = false
893 } else {
894 xonk.ID = prev.ID
895 updatehonk(&xonk)
896 }
897 }
898 if !isUpdate && needxonk(user, &xonk) {
899 if strings.HasSuffix(convoy, "#context") {
900 // friendica...
901 if rid != "" {
902 convoy = ""
903 } else {
904 convoy = url
905 }
906 }
907 if rid != "" {
908 if needxonkid(user, rid) {
909 goingup++
910 saveonemore(rid)
911 goingup--
912 }
913 if convoy == "" {
914 xx := getxonk(user.ID, rid)
915 if xx != nil {
916 convoy = xx.Convoy
917 }
918 }
919 }
920 if convoy == "" {
921 convoy = currenttid
922 }
923 if convoy == "" {
924 convoy = "data:,missing-" + xfiltrate()
925 currenttid = convoy
926 }
927 xonk.Convoy = convoy
928 savexonk(&xonk)
929 }
930 if goingup == 0 {
931 for _, replid := range replies {
932 if needxonkid(user, replid) {
933 log.Printf("missing a reply: %s", replid)
934 saveonemore(replid)
935 }
936 }
937 }
938 return &xonk
939 }
940
941 return xonkxonkfn(item, origin)
942}
943
944func rubadubdub(user *WhatAbout, req junk.Junk) {
945 xid, _ := req.GetString("id")
946 actor, _ := req.GetString("actor")
947 j := junk.New()
948 j["@context"] = itiswhatitis
949 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
950 j["type"] = "Accept"
951 j["actor"] = user.URL
952 j["to"] = actor
953 j["published"] = time.Now().UTC().Format(time.RFC3339)
954 j["object"] = req
955
956 deliverate(0, user.ID, actor, j.ToBytes())
957}
958
959func itakeitallback(user *WhatAbout, xid string) {
960 j := junk.New()
961 j["@context"] = itiswhatitis
962 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
963 j["type"] = "Undo"
964 j["actor"] = user.URL
965 j["to"] = xid
966 f := junk.New()
967 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
968 f["type"] = "Follow"
969 f["actor"] = user.URL
970 f["to"] = xid
971 f["object"] = xid
972 j["object"] = f
973 j["published"] = time.Now().UTC().Format(time.RFC3339)
974
975 deliverate(0, user.ID, xid, j.ToBytes())
976}
977
978func subsub(user *WhatAbout, xid string, owner string) {
979 if xid == "" {
980 log.Printf("can't subscribe to empty")
981 return
982 }
983 j := junk.New()
984 j["@context"] = itiswhatitis
985 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
986 j["type"] = "Follow"
987 j["actor"] = user.URL
988 j["to"] = owner
989 j["object"] = xid
990 j["published"] = time.Now().UTC().Format(time.RFC3339)
991
992 deliverate(0, user.ID, owner, j.ToBytes())
993}
994
995// returns activity, object
996func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
997 dt := h.Date.Format(time.RFC3339)
998 var jo junk.Junk
999 j := junk.New()
1000 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
1001 j["actor"] = user.URL
1002 j["published"] = dt
1003 if h.Public {
1004 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
1005 } else {
1006 j["to"] = h.Audience[0]
1007 }
1008 if len(h.Audience) > 1 {
1009 j["cc"] = h.Audience[1:]
1010 }
1011
1012 switch h.What {
1013 case "update":
1014 fallthrough
1015 case "tonk":
1016 fallthrough
1017 case "event":
1018 fallthrough
1019 case "honk":
1020 j["type"] = "Create"
1021 if h.What == "update" {
1022 j["type"] = "Update"
1023 }
1024
1025 jo = junk.New()
1026 jo["id"] = h.XID
1027 jo["type"] = "Note"
1028 if h.What == "event" {
1029 jo["type"] = "Event"
1030 }
1031 jo["published"] = dt
1032 jo["url"] = h.XID
1033 jo["attributedTo"] = user.URL
1034 if h.RID != "" {
1035 jo["inReplyTo"] = h.RID
1036 }
1037 if h.Convoy != "" {
1038 jo["context"] = h.Convoy
1039 jo["conversation"] = h.Convoy
1040 }
1041 jo["to"] = h.Audience[0]
1042 if len(h.Audience) > 1 {
1043 jo["cc"] = h.Audience[1:]
1044 }
1045 if !h.Public {
1046 jo["directMessage"] = true
1047 }
1048 mentions := bunchofgrapes(h.Noise)
1049 translate(h)
1050 redoimages(h)
1051 jo["summary"] = html.EscapeString(h.Precis)
1052 jo["content"] = h.Noise
1053 if h.Precis != "" {
1054 jo["sensitive"] = true
1055 }
1056
1057 var replies []string
1058 for _, reply := range h.Replies {
1059 replies = append(replies, reply.XID)
1060 }
1061 if len(replies) > 0 {
1062 jr := junk.New()
1063 jr["type"] = "Collection"
1064 jr["totalItems"] = len(replies)
1065 jr["items"] = replies
1066 jo["replies"] = jr
1067 }
1068
1069 var tags []junk.Junk
1070 for _, m := range mentions {
1071 t := junk.New()
1072 t["type"] = "Mention"
1073 t["name"] = m.Who
1074 t["href"] = m.Where
1075 tags = append(tags, t)
1076 }
1077 for _, o := range h.Onts {
1078 t := junk.New()
1079 t["type"] = "Hashtag"
1080 o = strings.ToLower(o)
1081 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1082 t["name"] = o
1083 tags = append(tags, t)
1084 }
1085 for _, e := range herdofemus(h.Noise) {
1086 t := junk.New()
1087 t["id"] = e.ID
1088 t["type"] = "Emoji"
1089 t["name"] = e.Name
1090 i := junk.New()
1091 i["type"] = "Image"
1092 i["mediaType"] = "image/png"
1093 i["url"] = e.ID
1094 t["icon"] = i
1095 tags = append(tags, t)
1096 }
1097 if len(tags) > 0 {
1098 jo["tag"] = tags
1099 }
1100 if p := h.Place; p != nil {
1101 t := junk.New()
1102 t["type"] = "Place"
1103 if p.Name != "" {
1104 t["name"] = p.Name
1105 }
1106 if p.Latitude != 0 {
1107 t["latitude"] = p.Latitude
1108 }
1109 if p.Longitude != 0 {
1110 t["longitude"] = p.Longitude
1111 }
1112 if p.Url != "" {
1113 t["url"] = p.Url
1114 }
1115 jo["location"] = t
1116 }
1117 if t := h.Time; t != nil {
1118 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1119 if t.Duration != 0 {
1120 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1121 }
1122 }
1123 var atts []junk.Junk
1124 for _, d := range h.Donks {
1125 if re_emus.MatchString(d.Name) {
1126 continue
1127 }
1128 jd := junk.New()
1129 jd["mediaType"] = d.Media
1130 jd["name"] = d.Name
1131 jd["summary"] = html.EscapeString(d.Desc)
1132 jd["type"] = "Document"
1133 jd["url"] = d.URL
1134 atts = append(atts, jd)
1135 }
1136 if len(atts) > 0 {
1137 jo["attachment"] = atts
1138 }
1139 j["object"] = jo
1140 case "bonk":
1141 j["type"] = "Announce"
1142 if h.Convoy != "" {
1143 j["context"] = h.Convoy
1144 }
1145 j["object"] = h.XID
1146 case "unbonk":
1147 b := junk.New()
1148 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1149 b["type"] = "Announce"
1150 b["actor"] = user.URL
1151 if h.Convoy != "" {
1152 b["context"] = h.Convoy
1153 }
1154 b["object"] = h.XID
1155 j["type"] = "Undo"
1156 j["object"] = b
1157 case "zonk":
1158 j["type"] = "Delete"
1159 j["object"] = h.XID
1160 case "ack":
1161 j["type"] = "Read"
1162 j["object"] = h.XID
1163 if h.Convoy != "" {
1164 j["context"] = h.Convoy
1165 }
1166 case "deack":
1167 b := junk.New()
1168 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1169 b["type"] = "Read"
1170 b["actor"] = user.URL
1171 b["object"] = h.XID
1172 if h.Convoy != "" {
1173 b["context"] = h.Convoy
1174 }
1175 j["type"] = "Undo"
1176 j["object"] = b
1177 }
1178
1179 return j, jo
1180}
1181
1182var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1183 row := stmtAnyXonk.QueryRow(xid)
1184 honk := scanhonk(row)
1185 if honk == nil || !honk.Public {
1186 return nil, true
1187 }
1188 user, _ := butwhatabout(honk.Username)
1189 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1190 reversehonks(rawhonks)
1191 for _, h := range rawhonks {
1192 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1193 honk.Replies = append(honk.Replies, h)
1194 }
1195 }
1196 donksforhonks([]*Honk{honk})
1197 _, j := jonkjonk(user, honk)
1198 j["@context"] = itiswhatitis
1199
1200 return j.ToBytes(), true
1201}, Limit: 128})
1202
1203func gimmejonk(xid string) ([]byte, bool) {
1204 var j []byte
1205 ok := oldjonks.Get(xid, &j)
1206 return j, ok
1207}
1208
1209func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1210 rcpts := make(map[string]bool)
1211 for _, a := range addresses {
1212 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1213 continue
1214 }
1215 if a[0] == '%' {
1216 rcpts[a] = true
1217 continue
1218 }
1219 var box *Box
1220 ok := boxofboxes.Get(a, &box)
1221 if ok && useshared && box.Shared != "" {
1222 rcpts["%"+box.Shared] = true
1223 } else {
1224 rcpts[a] = true
1225 }
1226 }
1227 return rcpts
1228}
1229
1230func honkworldwide(user *WhatAbout, honk *Honk) {
1231 jonk, _ := jonkjonk(user, honk)
1232 jonk["@context"] = itiswhatitis
1233 msg := jonk.ToBytes()
1234
1235 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1236
1237 if honk.Public {
1238 for _, h := range getdubs(user.ID) {
1239 if h.XID == user.URL {
1240 continue
1241 }
1242 var box *Box
1243 ok := boxofboxes.Get(h.XID, &box)
1244 if ok && box.Shared != "" {
1245 rcpts["%"+box.Shared] = true
1246 } else {
1247 rcpts[h.XID] = true
1248 }
1249 }
1250 for _, f := range getbacktracks(honk.XID) {
1251 rcpts[f] = true
1252 }
1253 }
1254 for a := range rcpts {
1255 go deliverate(0, user.ID, a, msg)
1256 }
1257 if honk.Public && len(honk.Onts) > 0 {
1258 collectiveaction(honk)
1259 }
1260}
1261
1262func collectiveaction(honk *Honk) {
1263 user := getserveruser()
1264 for _, ont := range honk.Onts {
1265 dubs := getnameddubs(serverUID, ont)
1266 if len(dubs) == 0 {
1267 continue
1268 }
1269 j := junk.New()
1270 j["@context"] = itiswhatitis
1271 j["type"] = "Add"
1272 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1273 j["actor"] = user.URL
1274 j["object"] = honk.XID
1275 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1276 rcpts := make(map[string]bool)
1277 for _, dub := range dubs {
1278 var box *Box
1279 ok := boxofboxes.Get(dub.XID, &box)
1280 if ok && box.Shared != "" {
1281 rcpts["%"+box.Shared] = true
1282 } else {
1283 rcpts[dub.XID] = true
1284 }
1285 }
1286 msg := j.ToBytes()
1287 for a := range rcpts {
1288 go deliverate(0, user.ID, a, msg)
1289 }
1290 }
1291}
1292
1293func junkuser(user *WhatAbout) []byte {
1294 about := markitzero(user.About)
1295
1296 j := junk.New()
1297 j["@context"] = itiswhatitis
1298 j["id"] = user.URL
1299 j["inbox"] = user.URL + "/inbox"
1300 j["outbox"] = user.URL + "/outbox"
1301 j["name"] = user.Display
1302 j["preferredUsername"] = user.Name
1303 j["summary"] = about
1304 if user.ID > 0 {
1305 j["type"] = "Person"
1306 j["url"] = user.URL
1307 j["followers"] = user.URL + "/followers"
1308 j["following"] = user.URL + "/following"
1309 a := junk.New()
1310 a["type"] = "Image"
1311 a["mediaType"] = "image/png"
1312 if ava := user.Options.Avatar; ava != "" {
1313 a["url"] = ava
1314 } else {
1315 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1316 }
1317 j["icon"] = a
1318 } else {
1319 j["type"] = "Service"
1320 }
1321 k := junk.New()
1322 k["id"] = user.URL + "#key"
1323 k["owner"] = user.URL
1324 k["publicKeyPem"] = user.Key
1325 j["publicKey"] = k
1326
1327 return j.ToBytes()
1328}
1329
1330var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1331 user, err := butwhatabout(name)
1332 if err != nil {
1333 return nil, false
1334 }
1335 return junkuser(user), true
1336}, Duration: 1 * time.Minute})
1337
1338func asjonker(name string) ([]byte, bool) {
1339 var j []byte
1340 ok := oldjonkers.Get(name, &j)
1341 return j, ok
1342}
1343
1344var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1345 m := strings.Split(name, "@")
1346 if len(m) != 2 {
1347 log.Printf("bad fish name: %s", name)
1348 return "", true
1349 }
1350 var href string
1351 row := stmtGetXonker.QueryRow(name, "fishname")
1352 err := row.Scan(&href)
1353 if err == nil {
1354 return href, true
1355 }
1356 log.Printf("fishing for %s", name)
1357 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1358 if err != nil {
1359 log.Printf("failed to go fish %s: %s", name, err)
1360 return "", true
1361 }
1362 links, _ := j.GetArray("links")
1363 for _, li := range links {
1364 l, ok := li.(junk.Junk)
1365 if !ok {
1366 continue
1367 }
1368 href, _ := l.GetString("href")
1369 rel, _ := l.GetString("rel")
1370 t, _ := l.GetString("type")
1371 if rel == "self" && friendorfoe(t) {
1372 when := time.Now().UTC().Format(dbtimeformat)
1373 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1374 if err != nil {
1375 log.Printf("error saving fishname: %s", err)
1376 }
1377 return href, true
1378 }
1379 }
1380 return href, true
1381}})
1382
1383func gofish(name string) string {
1384 if name[0] == '@' {
1385 name = name[1:]
1386 }
1387 var href string
1388 handfull.Get(name, &href)
1389 return href
1390}
1391
1392func investigate(name string) (*SomeThing, error) {
1393 if name == "" {
1394 return nil, fmt.Errorf("no name")
1395 }
1396 if name[0] == '@' {
1397 name = gofish(name)
1398 }
1399 if name == "" {
1400 return nil, fmt.Errorf("no name")
1401 }
1402 obj, err := GetJunkFast(name)
1403 if err != nil {
1404 return nil, err
1405 }
1406 allinjest(originate(name), obj)
1407 return somethingabout(obj)
1408}
1409
1410func somethingabout(obj junk.Junk) (*SomeThing, error) {
1411 info := new(SomeThing)
1412 t, _ := obj.GetString("type")
1413 switch t {
1414 case "Person":
1415 fallthrough
1416 case "Organization":
1417 fallthrough
1418 case "Application":
1419 fallthrough
1420 case "Service":
1421 info.What = SomeActor
1422 case "OrderedCollection":
1423 fallthrough
1424 case "Collection":
1425 info.What = SomeCollection
1426 default:
1427 return nil, fmt.Errorf("unknown object type")
1428 }
1429 info.XID, _ = obj.GetString("id")
1430 info.Name, _ = obj.GetString("preferredUsername")
1431 if info.Name == "" {
1432 info.Name, _ = obj.GetString("name")
1433 }
1434 info.Owner, _ = obj.GetString("attributedTo")
1435 if info.Owner == "" {
1436 info.Owner = info.XID
1437 }
1438 return info, nil
1439}
1440
1441func allinjest(origin string, obj junk.Junk) {
1442 keyobj, ok := obj.GetMap("publicKey")
1443 if ok {
1444 ingestpubkey(origin, keyobj)
1445 }
1446 ingestboxes(origin, obj)
1447 ingesthandle(origin, obj)
1448}
1449
1450func ingestpubkey(origin string, obj junk.Junk) {
1451 keyobj, ok := obj.GetMap("publicKey")
1452 if ok {
1453 obj = keyobj
1454 }
1455 keyname, ok := obj.GetString("id")
1456 var data string
1457 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1458 err := row.Scan(&data)
1459 if err == nil {
1460 return
1461 }
1462 if !ok || origin != originate(keyname) {
1463 log.Printf("bad key origin %s <> %s", origin, keyname)
1464 return
1465 }
1466 log.Printf("ingesting a needed pubkey: %s", keyname)
1467 owner, ok := obj.GetString("owner")
1468 if !ok {
1469 log.Printf("error finding %s pubkey owner", keyname)
1470 return
1471 }
1472 data, ok = obj.GetString("publicKeyPem")
1473 if !ok {
1474 log.Printf("error finding %s pubkey", keyname)
1475 return
1476 }
1477 if originate(owner) != origin {
1478 log.Printf("bad key owner: %s <> %s", owner, origin)
1479 return
1480 }
1481 _, _, err = httpsig.DecodeKey(data)
1482 if err != nil {
1483 log.Printf("error decoding %s pubkey: %s", keyname, err)
1484 return
1485 }
1486 when := time.Now().UTC().Format(dbtimeformat)
1487 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1488 if err != nil {
1489 log.Printf("error saving key: %s", err)
1490 }
1491}
1492
1493func ingestboxes(origin string, obj junk.Junk) {
1494 ident, _ := obj.GetString("id")
1495 if ident == "" {
1496 return
1497 }
1498 if originate(ident) != origin {
1499 return
1500 }
1501 var info string
1502 row := stmtGetXonker.QueryRow(ident, "boxes")
1503 err := row.Scan(&info)
1504 if err == nil {
1505 return
1506 }
1507 log.Printf("ingesting boxes: %s", ident)
1508 inbox, _ := obj.GetString("inbox")
1509 outbox, _ := obj.GetString("outbox")
1510 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1511 if inbox != "" {
1512 when := time.Now().UTC().Format(dbtimeformat)
1513 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1514 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1515 if err != nil {
1516 log.Printf("error saving boxes: %s", err)
1517 }
1518 }
1519}
1520
1521func ingesthandle(origin string, obj junk.Junk) {
1522 xid, _ := obj.GetString("id")
1523 if xid == "" {
1524 return
1525 }
1526 if originate(xid) != origin {
1527 return
1528 }
1529 var handle string
1530 row := stmtGetXonker.QueryRow(xid, "handle")
1531 err := row.Scan(&handle)
1532 if err == nil {
1533 return
1534 }
1535 handle, _ = obj.GetString("preferredUsername")
1536 if handle != "" {
1537 when := time.Now().UTC().Format(dbtimeformat)
1538 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1539 if err != nil {
1540 log.Printf("error saving handle: %s", err)
1541 }
1542 }
1543}