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 "database/sql"
21 "errors"
22 "fmt"
23 "html"
24 "io"
25 "log"
26 notrand "math/rand"
27 "net/http"
28 "net/url"
29 "os"
30 "regexp"
31 "strings"
32 "time"
33
34 "humungus.tedunangst.com/r/webs/cache"
35 "humungus.tedunangst.com/r/webs/gate"
36 "humungus.tedunangst.com/r/webs/httpsig"
37 "humungus.tedunangst.com/r/webs/junk"
38 "humungus.tedunangst.com/r/webs/templates"
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 httpsig.PrivateKey, url string, j junk.Junk) error {
61 return PostMsg(keyname, key, url, j.ToBytes())
62}
63
64func PostMsg(keyname string, key httpsig.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 log.Printf("error fetching donk: %s", err)
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 log.Printf("rejecting origin: %s", xid)
260 return false
261 }
262 if iszonked(user.ID, xid) {
263 log.Printf("already zonked: %s", xid)
264 return false
265 }
266 var id int64
267 row := stmtFindXonk.QueryRow(user.ID, xid)
268 err := row.Scan(&id)
269 if err == nil {
270 return false
271 }
272 if err != sql.ErrNoRows {
273 log.Printf("error querying xonk: %s", err)
274 }
275 return true
276}
277
278func eradicatexonk(userid int64, xid string) {
279 xonk := getxonk(userid, xid)
280 if xonk != nil {
281 deletehonk(xonk.ID)
282 }
283 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
284 if err != nil {
285 log.Printf("error eradicating: %s", err)
286 }
287}
288
289func savexonk(x *Honk) {
290 log.Printf("saving xonk: %s", x.XID)
291 go handles(x.Honker)
292 go handles(x.Oonker)
293 savehonk(x)
294}
295
296type Box struct {
297 In string
298 Out string
299 Shared string
300}
301
302var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
303 var info string
304 row := stmtGetXonker.QueryRow(ident, "boxes")
305 err := row.Scan(&info)
306 if err != nil {
307 log.Printf("need to get boxes for %s", ident)
308 var j junk.Junk
309 j, err = GetJunk(ident)
310 if err != nil {
311 log.Printf("error getting boxes: %s", err)
312 return nil, false
313 }
314 allinjest(originate(ident), j)
315 row = stmtGetXonker.QueryRow(ident, "boxes")
316 err = row.Scan(&info)
317 }
318 if err == nil {
319 m := strings.Split(info, " ")
320 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
321 return b, true
322 }
323 return nil, false
324}})
325
326func gimmexonks(user *WhatAbout, outbox string) {
327 log.Printf("getting outbox: %s", outbox)
328 j, err := GetJunk(outbox)
329 if err != nil {
330 log.Printf("error getting outbox: %s", err)
331 return
332 }
333 t, _ := j.GetString("type")
334 origin := originate(outbox)
335 if t == "OrderedCollection" {
336 items, _ := j.GetArray("orderedItems")
337 if items == nil {
338 items, _ = j.GetArray("items")
339 }
340 if items == nil {
341 obj, ok := j.GetMap("first")
342 if ok {
343 items, _ = obj.GetArray("orderedItems")
344 } else {
345 page1, ok := j.GetString("first")
346 if ok {
347 j, err = GetJunk(page1)
348 if err != nil {
349 log.Printf("error gettings page1: %s", err)
350 return
351 }
352 items, _ = j.GetArray("orderedItems")
353 }
354 }
355 }
356 if len(items) > 20 {
357 items = items[0:20]
358 }
359 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
360 items[i], items[j] = items[j], items[i]
361 }
362 for _, item := range items {
363 obj, ok := item.(junk.Junk)
364 if ok {
365 xonksaver(user, obj, origin)
366 continue
367 }
368 xid, ok := item.(string)
369 if ok {
370 if !needxonkid(user, xid) {
371 continue
372 }
373 obj, err = GetJunk(xid)
374 if err != nil {
375 log.Printf("error getting item: %s", err)
376 continue
377 }
378 xonksaver(user, obj, originate(xid))
379 }
380 }
381 }
382}
383
384func newphone(a []string, obj junk.Junk) []string {
385 for _, addr := range []string{"to", "cc", "attributedTo"} {
386 who, _ := obj.GetString(addr)
387 if who != "" {
388 a = append(a, who)
389 }
390 whos, _ := obj.GetArray(addr)
391 for _, w := range whos {
392 who, _ := w.(string)
393 if who != "" {
394 a = append(a, who)
395 }
396 }
397 }
398 return a
399}
400
401func extractattrto(obj junk.Junk) string {
402 who, _ := obj.GetString("attributedTo")
403 if who != "" {
404 return who
405 }
406 o, ok := obj.GetMap("attributedTo")
407 if ok {
408 id, ok := o.GetString("id")
409 if ok {
410 return id
411 }
412 }
413 arr, _ := obj.GetArray("attributedTo")
414 for _, a := range arr {
415 o, ok := a.(junk.Junk)
416 if ok {
417 t, _ := o.GetString("type")
418 id, _ := o.GetString("id")
419 if t == "Person" || t == "" {
420 return id
421 }
422 }
423 s, ok := a.(string)
424 if ok {
425 return s
426 }
427 }
428 return ""
429}
430
431func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
432 depth := 0
433 maxdepth := 10
434 currenttid := ""
435 goingup := 0
436 var xonkxonkfn func(item junk.Junk, origin string) *Honk
437
438 saveonemore := func(xid string) {
439 log.Printf("getting onemore: %s", xid)
440 if depth >= maxdepth {
441 log.Printf("in too deep")
442 return
443 }
444 obj, err := GetJunkHardMode(xid)
445 if err != nil {
446 log.Printf("error getting onemore: %s: %s", xid, err)
447 return
448 }
449 depth++
450 xonkxonkfn(obj, originate(xid))
451 depth--
452 }
453
454 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
455 // id, _ := item.GetString( "id")
456 what, _ := item.GetString("type")
457 dt, ok := item.GetString("published")
458 if !ok {
459 dt = time.Now().Format(time.RFC3339)
460 }
461
462 var err error
463 var xid, rid, url, content, precis, convoy string
464 var replies []string
465 var obj junk.Junk
466 isUpdate := false
467 switch what {
468 case "Delete":
469 obj, ok = item.GetMap("object")
470 if ok {
471 xid, _ = obj.GetString("id")
472 } else {
473 xid, _ = item.GetString("object")
474 }
475 if xid == "" {
476 return nil
477 }
478 if originate(xid) != origin {
479 log.Printf("forged delete: %s", xid)
480 return nil
481 }
482 log.Printf("eradicating %s", xid)
483 eradicatexonk(user.ID, xid)
484 return nil
485 case "Tombstone":
486 xid, _ = item.GetString("id")
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 "Announce":
498 obj, ok = item.GetMap("object")
499 if ok {
500 xid, _ = obj.GetString("id")
501 } else {
502 xid, _ = item.GetString("object")
503 }
504 if !needbonkid(user, xid) {
505 return nil
506 }
507 log.Printf("getting bonk: %s", xid)
508 obj, err = GetJunkHardMode(xid)
509 if err != nil {
510 log.Printf("error getting bonk: %s: %s", xid, err)
511 }
512 origin = originate(xid)
513 what = "bonk"
514 case "Update":
515 isUpdate = true
516 fallthrough
517 case "Create":
518 obj, ok = item.GetMap("object")
519 if !ok {
520 xid, _ = item.GetString("object")
521 log.Printf("getting created honk: %s", xid)
522 obj, err = GetJunkHardMode(xid)
523 if err != nil {
524 log.Printf("error getting creation: %s", err)
525 }
526 }
527 what = "honk"
528 if obj != nil {
529 t, _ := obj.GetString("type")
530 switch t {
531 case "Event":
532 what = "event"
533 }
534 }
535 case "Read":
536 xid, ok = item.GetString("object")
537 if ok {
538 if !needxonkid(user, xid) {
539 log.Printf("don't need read obj: %s", xid)
540 return nil
541 }
542 obj, err = GetJunkHardMode(xid)
543 if err != nil {
544 log.Printf("error getting read: %s", err)
545 return nil
546 }
547 return xonkxonkfn(obj, originate(xid))
548 }
549 return nil
550 case "Add":
551 xid, ok = item.GetString("object")
552 if ok {
553 // check target...
554 if !needxonkid(user, xid) {
555 log.Printf("don't need added obj: %s", xid)
556 return nil
557 }
558 obj, err = GetJunkHardMode(xid)
559 if err != nil {
560 log.Printf("error getting add: %s", err)
561 return nil
562 }
563 return xonkxonkfn(obj, originate(xid))
564 }
565 return nil
566 case "Move":
567 obj = item
568 what = "move"
569 case "Audio":
570 fallthrough
571 case "Image":
572 fallthrough
573 case "Video":
574 fallthrough
575 case "Question":
576 fallthrough
577 case "Note":
578 fallthrough
579 case "Article":
580 fallthrough
581 case "Page":
582 obj = item
583 what = "honk"
584 case "Event":
585 obj = item
586 what = "event"
587 default:
588 log.Printf("unknown activity: %s", what)
589 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
590 item.Write(fd)
591 io.WriteString(fd, "\n")
592 fd.Close()
593 return nil
594 }
595
596 if obj != nil {
597 if _, ok := obj.GetString("diaspora:guid"); ok {
598 // friendica does the silliest bonks
599 if c, ok := obj.GetString("source", "content"); ok {
600 re_link := regexp.MustCompile(`link='([^']*)'`)
601 if m := re_link.FindStringSubmatch(c); len(m) > 1 {
602 xid = m[1]
603 log.Printf("getting friendica flavored bonk: %s", xid)
604 if !needxonkid(user, xid) {
605 return nil
606 }
607 if newobj, err := GetJunkHardMode(xid); err == nil {
608 obj = newobj
609 origin = originate(xid)
610 what = "bonk"
611 } else {
612 log.Printf("error getting bonk: %s: %s", xid, err)
613 }
614 }
615 }
616 }
617 xid, _ = obj.GetString("id")
618 }
619
620 if xid == "" {
621 log.Printf("don't know what xid is")
622 item.Write(os.Stdout)
623 return nil
624 }
625 if originate(xid) != origin {
626 log.Printf("original sin: %s <> %s", xid, origin)
627 item.Write(os.Stdout)
628 return nil
629 }
630
631 var xonk Honk
632 // early init
633 xonk.XID = xid
634 xonk.UserID = user.ID
635 xonk.Honker, _ = item.GetString("actor")
636 if xonk.Honker == "" {
637 xonk.Honker, _ = item.GetString("attributedTo")
638 }
639 if obj != nil {
640 if xonk.Honker == "" {
641 xonk.Honker = extractattrto(obj)
642 }
643 xonk.Oonker = extractattrto(obj)
644 if xonk.Oonker == xonk.Honker {
645 xonk.Oonker = ""
646 }
647 xonk.Audience = newphone(nil, obj)
648 }
649 xonk.Audience = append(xonk.Audience, xonk.Honker)
650 xonk.Audience = oneofakind(xonk.Audience)
651
652 var mentions []Mention
653 if obj != nil {
654 ot, _ := obj.GetString("type")
655 url, _ = obj.GetString("url")
656 if dt2, ok := obj.GetString("published"); ok {
657 dt = dt2
658 }
659 content, _ = obj.GetString("content")
660 if !strings.HasPrefix(content, "<p>") {
661 content = "<p>" + content
662 }
663 precis, _ = obj.GetString("summary")
664 if name, ok := obj.GetString("name"); ok {
665 if precis != "" {
666 content = precis + "<p>" + content
667 }
668 precis = html.EscapeString(name)
669 }
670 if sens, _ := obj["sensitive"].(bool); sens && precis == "" {
671 precis = "unspecified horror"
672 }
673 rid, ok = obj.GetString("inReplyTo")
674 if !ok {
675 if robj, ok := obj.GetMap("inReplyTo"); ok {
676 rid, _ = robj.GetString("id")
677 }
678 }
679 convoy, _ = obj.GetString("context")
680 if convoy == "" {
681 convoy, _ = obj.GetString("conversation")
682 }
683 if ot == "Question" {
684 if what == "honk" {
685 what = "qonk"
686 }
687 content += "<ul>"
688 ans, _ := obj.GetArray("oneOf")
689 for _, ai := range ans {
690 a, ok := ai.(junk.Junk)
691 if !ok {
692 continue
693 }
694 as, _ := a.GetString("name")
695 content += "<li>" + as
696 }
697 ans, _ = obj.GetArray("anyOf")
698 for _, ai := range ans {
699 a, ok := ai.(junk.Junk)
700 if !ok {
701 continue
702 }
703 as, _ := a.GetString("name")
704 content += "<li>" + as
705 }
706 content += "</ul>"
707 }
708 if ot == "Move" {
709 targ, _ := obj.GetString("target")
710 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
711 }
712 if what == "honk" && rid != "" {
713 what = "tonk"
714 }
715 atts, _ := obj.GetArray("attachment")
716 for i, atti := range atts {
717 if rejectxonk(&xonk) {
718 log.Printf("skipping rejected attachment: %s", xid)
719 continue
720 }
721 att, ok := atti.(junk.Junk)
722 if !ok {
723 continue
724 }
725 at, _ := att.GetString("type")
726 mt, _ := att.GetString("mediaType")
727 u, _ := att.GetString("url")
728 name, _ := att.GetString("name")
729 desc, _ := att.GetString("summary")
730 if desc == "" {
731 desc = name
732 }
733 localize := false
734 if i > 4 {
735 log.Printf("excessive attachment: %s", at)
736 } else if at == "Document" || at == "Image" {
737 mt = strings.ToLower(mt)
738 log.Printf("attachment: %s %s", mt, u)
739 if mt == "text/plain" || mt == "application/pdf" ||
740 strings.HasPrefix(mt, "image") {
741 localize = true
742 }
743 } else {
744 log.Printf("unknown attachment: %s", at)
745 }
746 if skipMedia(&xonk) {
747 localize = false
748 }
749 donk := savedonk(u, name, desc, mt, localize)
750 if donk != nil {
751 xonk.Donks = append(xonk.Donks, donk)
752 }
753 }
754 tags, _ := obj.GetArray("tag")
755 for _, tagi := range tags {
756 if rejectxonk(&xonk) {
757 log.Printf("skipping rejected attachment: %s", xid)
758 continue
759 }
760 tag, ok := tagi.(junk.Junk)
761 if !ok {
762 continue
763 }
764 tt, _ := tag.GetString("type")
765 name, _ := tag.GetString("name")
766 desc, _ := tag.GetString("summary")
767 if desc == "" {
768 desc = name
769 }
770 if tt == "Emoji" {
771 icon, _ := tag.GetMap("icon")
772 mt, _ := icon.GetString("mediaType")
773 if mt == "" {
774 mt = "image/png"
775 }
776 u, _ := icon.GetString("url")
777 donk := savedonk(u, name, desc, mt, true)
778 if donk != nil {
779 xonk.Donks = append(xonk.Donks, donk)
780 }
781 }
782 if tt == "Hashtag" {
783 if name == "" || name == "#" {
784 // skip it
785 } else {
786 if name[0] != '#' {
787 name = "#" + name
788 }
789 xonk.Onts = append(xonk.Onts, name)
790 }
791 }
792 if tt == "Place" {
793 p := new(Place)
794 p.Name = name
795 p.Latitude, _ = tag["latitude"].(float64)
796 p.Longitude, _ = tag["longitude"].(float64)
797 p.Url, _ = tag.GetString("url")
798 xonk.Place = p
799 }
800 if tt == "Mention" {
801 var m Mention
802 m.Who, _ = tag.GetString("name")
803 m.Where, _ = tag.GetString("href")
804 mentions = append(mentions, m)
805 }
806 }
807 if starttime, ok := obj.GetString("startTime"); ok {
808 if start, err := time.Parse(time.RFC3339, starttime); err == nil {
809 t := new(Time)
810 t.StartTime = start
811 endtime, _ := obj.GetString("endTime")
812 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
813 dura, _ := obj.GetString("duration")
814 if strings.HasPrefix(dura, "PT") {
815 dura = strings.ToLower(dura[2:])
816 d, _ := time.ParseDuration(dura)
817 t.Duration = Duration(d)
818 }
819 xonk.Time = t
820 }
821 }
822 if loca, ok := obj.GetMap("location"); ok {
823 if tt, _ := loca.GetString("type"); tt == "Place" {
824 p := new(Place)
825 p.Name, _ = loca.GetString("name")
826 p.Latitude, _ = loca["latitude"].(float64)
827 p.Longitude, _ = loca["longitude"].(float64)
828 p.Url, _ = loca.GetString("url")
829 xonk.Place = p
830 }
831 }
832
833 xonk.Onts = oneofakind(xonk.Onts)
834 replyobj, ok := obj.GetMap("replies")
835 if ok {
836 items, ok := replyobj.GetArray("items")
837 if !ok {
838 first, ok := replyobj.GetMap("first")
839 if ok {
840 items, _ = first.GetArray("items")
841 }
842 }
843 for _, repl := range items {
844 s, ok := repl.(string)
845 if ok {
846 replies = append(replies, s)
847 }
848 }
849 }
850
851 }
852
853 if currenttid == "" {
854 currenttid = convoy
855 }
856
857 if len(content) > 90001 {
858 log.Printf("content too long. truncating")
859 content = content[:90001]
860 }
861
862 // init xonk
863 xonk.What = what
864 xonk.RID = rid
865 xonk.Date, _ = time.Parse(time.RFC3339, dt)
866 xonk.URL = url
867 xonk.Noise = content
868 xonk.Precis = precis
869 xonk.Format = "html"
870 xonk.Convoy = convoy
871 xonk.Mentions = mentions
872 for _, m := range mentions {
873 if m.Where == user.URL {
874 xonk.Whofore = 1
875 }
876 }
877 imaginate(&xonk)
878
879 if isUpdate {
880 log.Printf("something has changed! %s", xonk.XID)
881 prev := getxonk(user.ID, xonk.XID)
882 if prev == nil {
883 log.Printf("didn't find old version for update: %s", xonk.XID)
884 isUpdate = false
885 } else {
886 xonk.ID = prev.ID
887 updatehonk(&xonk)
888 }
889 }
890 if !isUpdate && needxonk(user, &xonk) {
891 if strings.HasSuffix(convoy, "#context") {
892 // friendica...
893 if rid != "" {
894 convoy = ""
895 } else {
896 convoy = url
897 }
898 }
899 if rid != "" {
900 if needxonkid(user, rid) {
901 goingup++
902 saveonemore(rid)
903 goingup--
904 }
905 if convoy == "" {
906 xx := getxonk(user.ID, rid)
907 if xx != nil {
908 convoy = xx.Convoy
909 }
910 }
911 }
912 if convoy == "" {
913 convoy = currenttid
914 }
915 if convoy == "" {
916 convoy = "data:,missing-" + xfiltrate()
917 currenttid = convoy
918 }
919 xonk.Convoy = convoy
920 savexonk(&xonk)
921 }
922 if goingup == 0 {
923 for _, replid := range replies {
924 if needxonkid(user, replid) {
925 log.Printf("missing a reply: %s", replid)
926 saveonemore(replid)
927 }
928 }
929 }
930 return &xonk
931 }
932
933 return xonkxonkfn(item, origin)
934}
935
936func rubadubdub(user *WhatAbout, req junk.Junk) {
937 xid, _ := req.GetString("id")
938 actor, _ := req.GetString("actor")
939 j := junk.New()
940 j["@context"] = itiswhatitis
941 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
942 j["type"] = "Accept"
943 j["actor"] = user.URL
944 j["to"] = actor
945 j["published"] = time.Now().UTC().Format(time.RFC3339)
946 j["object"] = req
947
948 deliverate(0, user.ID, actor, j.ToBytes())
949}
950
951func itakeitallback(user *WhatAbout, xid string) {
952 j := junk.New()
953 j["@context"] = itiswhatitis
954 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
955 j["type"] = "Undo"
956 j["actor"] = user.URL
957 j["to"] = xid
958 f := junk.New()
959 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
960 f["type"] = "Follow"
961 f["actor"] = user.URL
962 f["to"] = xid
963 f["object"] = xid
964 j["object"] = f
965 j["published"] = time.Now().UTC().Format(time.RFC3339)
966
967 deliverate(0, user.ID, xid, j.ToBytes())
968}
969
970func subsub(user *WhatAbout, xid string, owner string) {
971 if xid == "" {
972 log.Printf("can't subscribe to empty")
973 return
974 }
975 j := junk.New()
976 j["@context"] = itiswhatitis
977 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
978 j["type"] = "Follow"
979 j["actor"] = user.URL
980 j["to"] = owner
981 j["object"] = xid
982 j["published"] = time.Now().UTC().Format(time.RFC3339)
983
984 deliverate(0, user.ID, owner, j.ToBytes())
985}
986
987// returns activity, object
988func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
989 dt := h.Date.Format(time.RFC3339)
990 var jo junk.Junk
991 j := junk.New()
992 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
993 j["actor"] = user.URL
994 j["published"] = dt
995 if h.Public {
996 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
997 } else {
998 j["to"] = h.Audience[0]
999 }
1000 if len(h.Audience) > 1 {
1001 j["cc"] = h.Audience[1:]
1002 }
1003
1004 switch h.What {
1005 case "update":
1006 fallthrough
1007 case "tonk":
1008 fallthrough
1009 case "event":
1010 fallthrough
1011 case "honk":
1012 j["type"] = "Create"
1013 if h.What == "update" {
1014 j["type"] = "Update"
1015 }
1016
1017 jo = junk.New()
1018 jo["id"] = h.XID
1019 jo["type"] = "Note"
1020 if h.What == "event" {
1021 jo["type"] = "Event"
1022 }
1023 jo["published"] = dt
1024 jo["url"] = h.XID
1025 jo["attributedTo"] = user.URL
1026 if h.RID != "" {
1027 jo["inReplyTo"] = h.RID
1028 }
1029 if h.Convoy != "" {
1030 jo["context"] = h.Convoy
1031 jo["conversation"] = h.Convoy
1032 }
1033 jo["to"] = h.Audience[0]
1034 if len(h.Audience) > 1 {
1035 jo["cc"] = h.Audience[1:]
1036 }
1037 if !h.Public {
1038 jo["directMessage"] = true
1039 }
1040 mentions := bunchofgrapes(h.Noise)
1041 translate(h)
1042 redoimages(h)
1043 jo["summary"] = html.EscapeString(h.Precis)
1044 jo["content"] = h.Noise
1045 if h.Precis != "" {
1046 jo["sensitive"] = true
1047 }
1048
1049 var replies []string
1050 for _, reply := range h.Replies {
1051 replies = append(replies, reply.XID)
1052 }
1053 if len(replies) > 0 {
1054 jr := junk.New()
1055 jr["type"] = "Collection"
1056 jr["totalItems"] = len(replies)
1057 jr["items"] = replies
1058 jo["replies"] = jr
1059 }
1060
1061 var tags []junk.Junk
1062 for _, m := range mentions {
1063 t := junk.New()
1064 t["type"] = "Mention"
1065 t["name"] = m.Who
1066 t["href"] = m.Where
1067 tags = append(tags, t)
1068 }
1069 for _, o := range h.Onts {
1070 t := junk.New()
1071 t["type"] = "Hashtag"
1072 o = strings.ToLower(o)
1073 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1074 t["name"] = o
1075 tags = append(tags, t)
1076 }
1077 for _, e := range herdofemus(h.Noise) {
1078 t := junk.New()
1079 t["id"] = e.ID
1080 t["type"] = "Emoji"
1081 t["name"] = e.Name
1082 i := junk.New()
1083 i["type"] = "Image"
1084 i["mediaType"] = "image/png"
1085 i["url"] = e.ID
1086 t["icon"] = i
1087 tags = append(tags, t)
1088 }
1089 if len(tags) > 0 {
1090 jo["tag"] = tags
1091 }
1092 if p := h.Place; p != nil {
1093 t := junk.New()
1094 t["type"] = "Place"
1095 if p.Name != "" {
1096 t["name"] = p.Name
1097 }
1098 if p.Latitude != 0 {
1099 t["latitude"] = p.Latitude
1100 }
1101 if p.Longitude != 0 {
1102 t["longitude"] = p.Longitude
1103 }
1104 if p.Url != "" {
1105 t["url"] = p.Url
1106 }
1107 jo["location"] = t
1108 }
1109 if t := h.Time; t != nil {
1110 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1111 if t.Duration != 0 {
1112 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1113 }
1114 }
1115 var atts []junk.Junk
1116 for _, d := range h.Donks {
1117 if re_emus.MatchString(d.Name) {
1118 continue
1119 }
1120 jd := junk.New()
1121 jd["mediaType"] = d.Media
1122 jd["name"] = d.Name
1123 jd["summary"] = html.EscapeString(d.Desc)
1124 jd["type"] = "Document"
1125 jd["url"] = d.URL
1126 atts = append(atts, jd)
1127 }
1128 if len(atts) > 0 {
1129 jo["attachment"] = atts
1130 }
1131 j["object"] = jo
1132 case "bonk":
1133 j["type"] = "Announce"
1134 if h.Convoy != "" {
1135 j["context"] = h.Convoy
1136 }
1137 j["object"] = h.XID
1138 case "unbonk":
1139 b := junk.New()
1140 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1141 b["type"] = "Announce"
1142 b["actor"] = user.URL
1143 if h.Convoy != "" {
1144 b["context"] = h.Convoy
1145 }
1146 b["object"] = h.XID
1147 j["type"] = "Undo"
1148 j["object"] = b
1149 case "zonk":
1150 j["type"] = "Delete"
1151 j["object"] = h.XID
1152 case "ack":
1153 j["type"] = "Read"
1154 j["object"] = h.XID
1155 if h.Convoy != "" {
1156 j["context"] = h.Convoy
1157 }
1158 case "react":
1159 j["type"] = "EmojiReaction"
1160 j["object"] = h.XID
1161 if h.Convoy != "" {
1162 j["context"] = h.Convoy
1163 }
1164 j["content"] = user.Options.Reaction
1165 case "deack":
1166 b := junk.New()
1167 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1168 b["type"] = "Read"
1169 b["actor"] = user.URL
1170 b["object"] = h.XID
1171 if h.Convoy != "" {
1172 b["context"] = h.Convoy
1173 }
1174 j["type"] = "Undo"
1175 j["object"] = b
1176 }
1177
1178 return j, jo
1179}
1180
1181var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1182 row := stmtAnyXonk.QueryRow(xid)
1183 honk := scanhonk(row)
1184 if honk == nil || !honk.Public {
1185 return nil, true
1186 }
1187 user, _ := butwhatabout(honk.Username)
1188 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1189 reversehonks(rawhonks)
1190 for _, h := range rawhonks {
1191 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1192 honk.Replies = append(honk.Replies, h)
1193 }
1194 }
1195 donksforhonks([]*Honk{honk})
1196 _, j := jonkjonk(user, honk)
1197 j["@context"] = itiswhatitis
1198
1199 return j.ToBytes(), true
1200}, Limit: 128})
1201
1202func gimmejonk(xid string) ([]byte, bool) {
1203 var j []byte
1204 ok := oldjonks.Get(xid, &j)
1205 return j, ok
1206}
1207
1208func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1209 rcpts := make(map[string]bool)
1210 for _, a := range addresses {
1211 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1212 continue
1213 }
1214 if a[0] == '%' {
1215 rcpts[a] = true
1216 continue
1217 }
1218 var box *Box
1219 ok := boxofboxes.Get(a, &box)
1220 if ok && useshared && box.Shared != "" {
1221 rcpts["%"+box.Shared] = true
1222 } else {
1223 rcpts[a] = true
1224 }
1225 }
1226 return rcpts
1227}
1228
1229func honkworldwide(user *WhatAbout, honk *Honk) {
1230 jonk, _ := jonkjonk(user, honk)
1231 jonk["@context"] = itiswhatitis
1232 msg := jonk.ToBytes()
1233
1234 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1235
1236 if honk.Public {
1237 for _, h := range getdubs(user.ID) {
1238 if h.XID == user.URL {
1239 continue
1240 }
1241 var box *Box
1242 ok := boxofboxes.Get(h.XID, &box)
1243 if ok && box.Shared != "" {
1244 rcpts["%"+box.Shared] = true
1245 } else {
1246 rcpts[h.XID] = true
1247 }
1248 }
1249 for _, f := range getbacktracks(honk.XID) {
1250 rcpts[f] = true
1251 }
1252 }
1253 for a := range rcpts {
1254 go deliverate(0, user.ID, a, msg)
1255 }
1256 if honk.Public && len(honk.Onts) > 0 {
1257 collectiveaction(honk)
1258 }
1259}
1260
1261func collectiveaction(honk *Honk) {
1262 user := getserveruser()
1263 for _, ont := range honk.Onts {
1264 dubs := getnameddubs(serverUID, ont)
1265 if len(dubs) == 0 {
1266 continue
1267 }
1268 j := junk.New()
1269 j["@context"] = itiswhatitis
1270 j["type"] = "Add"
1271 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1272 j["actor"] = user.URL
1273 j["object"] = honk.XID
1274 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1275 rcpts := make(map[string]bool)
1276 for _, dub := range dubs {
1277 var box *Box
1278 ok := boxofboxes.Get(dub.XID, &box)
1279 if ok && box.Shared != "" {
1280 rcpts["%"+box.Shared] = true
1281 } else {
1282 rcpts[dub.XID] = true
1283 }
1284 }
1285 msg := j.ToBytes()
1286 for a := range rcpts {
1287 go deliverate(0, user.ID, a, msg)
1288 }
1289 }
1290}
1291
1292func junkuser(user *WhatAbout) []byte {
1293 about := markitzero(user.About)
1294
1295 j := junk.New()
1296 j["@context"] = itiswhatitis
1297 j["id"] = user.URL
1298 j["inbox"] = user.URL + "/inbox"
1299 j["outbox"] = user.URL + "/outbox"
1300 j["name"] = user.Display
1301 j["preferredUsername"] = user.Name
1302 j["summary"] = about
1303 if user.ID > 0 {
1304 j["type"] = "Person"
1305 j["url"] = user.URL
1306 j["followers"] = user.URL + "/followers"
1307 j["following"] = user.URL + "/following"
1308 a := junk.New()
1309 a["type"] = "Image"
1310 a["mediaType"] = "image/png"
1311 if ava := user.Options.Avatar; ava != "" {
1312 a["url"] = ava
1313 } else {
1314 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1315 }
1316 j["icon"] = a
1317 } else {
1318 j["type"] = "Service"
1319 }
1320 k := junk.New()
1321 k["id"] = user.URL + "#key"
1322 k["owner"] = user.URL
1323 k["publicKeyPem"] = user.Key
1324 j["publicKey"] = k
1325
1326 return j.ToBytes()
1327}
1328
1329var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1330 user, err := butwhatabout(name)
1331 if err != nil {
1332 return nil, false
1333 }
1334 return junkuser(user), true
1335}, Duration: 1 * time.Minute})
1336
1337func asjonker(name string) ([]byte, bool) {
1338 var j []byte
1339 ok := oldjonkers.Get(name, &j)
1340 return j, ok
1341}
1342
1343var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1344 m := strings.Split(name, "@")
1345 if len(m) != 2 {
1346 log.Printf("bad fish name: %s", name)
1347 return "", true
1348 }
1349 var href string
1350 row := stmtGetXonker.QueryRow(name, "fishname")
1351 err := row.Scan(&href)
1352 if err == nil {
1353 return href, true
1354 }
1355 log.Printf("fishing for %s", name)
1356 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1357 if err != nil {
1358 log.Printf("failed to go fish %s: %s", name, err)
1359 return "", true
1360 }
1361 links, _ := j.GetArray("links")
1362 for _, li := range links {
1363 l, ok := li.(junk.Junk)
1364 if !ok {
1365 continue
1366 }
1367 href, _ := l.GetString("href")
1368 rel, _ := l.GetString("rel")
1369 t, _ := l.GetString("type")
1370 if rel == "self" && friendorfoe(t) {
1371 when := time.Now().UTC().Format(dbtimeformat)
1372 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1373 if err != nil {
1374 log.Printf("error saving fishname: %s", err)
1375 }
1376 return href, true
1377 }
1378 }
1379 return href, true
1380}})
1381
1382func gofish(name string) string {
1383 if name[0] == '@' {
1384 name = name[1:]
1385 }
1386 var href string
1387 handfull.Get(name, &href)
1388 return href
1389}
1390
1391func investigate(name string) (*SomeThing, error) {
1392 if name == "" {
1393 return nil, fmt.Errorf("no name")
1394 }
1395 if name[0] == '@' {
1396 name = gofish(name)
1397 }
1398 if name == "" {
1399 return nil, fmt.Errorf("no name")
1400 }
1401 obj, err := GetJunkFast(name)
1402 if err != nil {
1403 return nil, err
1404 }
1405 allinjest(originate(name), obj)
1406 return somethingabout(obj)
1407}
1408
1409func somethingabout(obj junk.Junk) (*SomeThing, error) {
1410 info := new(SomeThing)
1411 t, _ := obj.GetString("type")
1412 switch t {
1413 case "Person":
1414 fallthrough
1415 case "Organization":
1416 fallthrough
1417 case "Application":
1418 fallthrough
1419 case "Service":
1420 info.What = SomeActor
1421 case "OrderedCollection":
1422 fallthrough
1423 case "Collection":
1424 info.What = SomeCollection
1425 default:
1426 return nil, fmt.Errorf("unknown object type")
1427 }
1428 info.XID, _ = obj.GetString("id")
1429 info.Name, _ = obj.GetString("preferredUsername")
1430 if info.Name == "" {
1431 info.Name, _ = obj.GetString("name")
1432 }
1433 info.Owner, _ = obj.GetString("attributedTo")
1434 if info.Owner == "" {
1435 info.Owner = info.XID
1436 }
1437 return info, nil
1438}
1439
1440func allinjest(origin string, obj junk.Junk) {
1441 keyobj, ok := obj.GetMap("publicKey")
1442 if ok {
1443 ingestpubkey(origin, keyobj)
1444 }
1445 ingestboxes(origin, obj)
1446 ingesthandle(origin, obj)
1447}
1448
1449func ingestpubkey(origin string, obj junk.Junk) {
1450 keyobj, ok := obj.GetMap("publicKey")
1451 if ok {
1452 obj = keyobj
1453 }
1454 keyname, ok := obj.GetString("id")
1455 var data string
1456 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1457 err := row.Scan(&data)
1458 if err == nil {
1459 return
1460 }
1461 if !ok || origin != originate(keyname) {
1462 log.Printf("bad key origin %s <> %s", origin, keyname)
1463 return
1464 }
1465 log.Printf("ingesting a needed pubkey: %s", keyname)
1466 owner, ok := obj.GetString("owner")
1467 if !ok {
1468 log.Printf("error finding %s pubkey owner", keyname)
1469 return
1470 }
1471 data, ok = obj.GetString("publicKeyPem")
1472 if !ok {
1473 log.Printf("error finding %s pubkey", keyname)
1474 return
1475 }
1476 if originate(owner) != origin {
1477 log.Printf("bad key owner: %s <> %s", owner, origin)
1478 return
1479 }
1480 _, _, err = httpsig.DecodeKey(data)
1481 if err != nil {
1482 log.Printf("error decoding %s pubkey: %s", keyname, err)
1483 return
1484 }
1485 when := time.Now().UTC().Format(dbtimeformat)
1486 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1487 if err != nil {
1488 log.Printf("error saving key: %s", err)
1489 }
1490}
1491
1492func ingestboxes(origin string, obj junk.Junk) {
1493 ident, _ := obj.GetString("id")
1494 if ident == "" {
1495 return
1496 }
1497 if originate(ident) != origin {
1498 return
1499 }
1500 var info string
1501 row := stmtGetXonker.QueryRow(ident, "boxes")
1502 err := row.Scan(&info)
1503 if err == nil {
1504 return
1505 }
1506 log.Printf("ingesting boxes: %s", ident)
1507 inbox, _ := obj.GetString("inbox")
1508 outbox, _ := obj.GetString("outbox")
1509 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1510 if inbox != "" {
1511 when := time.Now().UTC().Format(dbtimeformat)
1512 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1513 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1514 if err != nil {
1515 log.Printf("error saving boxes: %s", err)
1516 }
1517 }
1518}
1519
1520func ingesthandle(origin string, obj junk.Junk) {
1521 xid, _ := obj.GetString("id")
1522 if xid == "" {
1523 return
1524 }
1525 if originate(xid) != origin {
1526 return
1527 }
1528 var handle string
1529 row := stmtGetXonker.QueryRow(xid, "handle")
1530 err := row.Scan(&handle)
1531 if err == nil {
1532 return
1533 }
1534 handle, _ = obj.GetString("preferredUsername")
1535 if handle != "" {
1536 when := time.Now().UTC().Format(dbtimeformat)
1537 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1538 if err != nil {
1539 log.Printf("error saving handle: %s", err)
1540 }
1541 }
1542}