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