activity.go (view raw)
1//
2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
3//
4// Permission to use, copy, modify, and distribute this software for any
5// purpose with or without fee is hereby granted, provided that the above
6// copyright notice and this permission notice appear in all copies.
7//
8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15
16package main
17
18import (
19 "bytes"
20 "crypto/rsa"
21 "database/sql"
22 "errors"
23 "fmt"
24 "html"
25 "io"
26 "log"
27 notrand "math/rand"
28 "net/http"
29 "net/url"
30 "os"
31 "regexp"
32 "strings"
33 "time"
34
35 "humungus.tedunangst.com/r/webs/cache"
36 "humungus.tedunangst.com/r/webs/gate"
37 "humungus.tedunangst.com/r/webs/httpsig"
38 "humungus.tedunangst.com/r/webs/junk"
39)
40
41var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
42var thefakename = `application/activity+json`
43var falsenames = []string{
44 `application/ld+json`,
45 `application/activity+json`,
46}
47var itiswhatitis = "https://www.w3.org/ns/activitystreams"
48var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
49
50func friendorfoe(ct string) bool {
51 ct = strings.ToLower(ct)
52 for _, at := range falsenames {
53 if strings.HasPrefix(ct, at) {
54 return true
55 }
56 }
57 return false
58}
59
60func PostJunk(keyname string, key *rsa.PrivateKey, url string, j junk.Junk) error {
61 return PostMsg(keyname, key, url, j.ToBytes())
62}
63
64func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
65 client := http.DefaultClient
66 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
67 if err != nil {
68 return err
69 }
70 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
71 req.Header.Set("Content-Type", theonetruename)
72 httpsig.SignRequest(keyname, key, req, msg)
73 resp, err := client.Do(req)
74 if err != nil {
75 return err
76 }
77 resp.Body.Close()
78 switch resp.StatusCode {
79 case 200:
80 case 201:
81 case 202:
82 default:
83 return fmt.Errorf("http post status: %d", resp.StatusCode)
84 }
85 log.Printf("successful post: %s %d", url, resp.StatusCode)
86 return nil
87}
88
89type JunkError struct {
90 Junk junk.Junk
91 Err error
92}
93
94func GetJunk(url string) (junk.Junk, error) {
95 return GetJunkTimeout(url, 30*time.Second)
96}
97
98func GetJunkFast(url string) (junk.Junk, error) {
99 return GetJunkTimeout(url, 5*time.Second)
100}
101
102func GetJunkHardMode(url string) (junk.Junk, error) {
103 j, err := GetJunk(url)
104 if err != nil {
105 emsg := err.Error()
106 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
107 log.Printf("trying again after error: %s", emsg)
108 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
109 j, err = GetJunk(url)
110 if err != nil {
111 log.Printf("still couldn't get it")
112 } else {
113 log.Printf("retry success!")
114 }
115 }
116 }
117 return j, err
118}
119
120var flightdeck = gate.NewSerializer()
121
122func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
123
124 fn := func() (interface{}, error) {
125 at := thefakename
126 if strings.Contains(url, ".well-known/webfinger?resource") {
127 at = "application/jrd+json"
128 }
129 j, err := junk.Get(url, junk.GetArgs{
130 Accept: at,
131 Agent: "honksnonk/5.0; " + serverName,
132 Timeout: timeout,
133 })
134 return j, err
135 }
136
137 ji, err := flightdeck.Call(url, fn)
138 if err != nil {
139 return nil, err
140 }
141 j := ji.(junk.Junk)
142 return j, nil
143}
144
145func fetchsome(url string) ([]byte, error) {
146 resp, err := http.Get(url)
147 if err != nil {
148 log.Printf("error fetching %s: %s", url, err)
149 return nil, err
150 }
151 defer resp.Body.Close()
152 if resp.StatusCode != 200 {
153 return nil, errors.New("not 200")
154 }
155 var buf bytes.Buffer
156 limiter := io.LimitReader(resp.Body, 10*1024*1024)
157 io.Copy(&buf, limiter)
158 return buf.Bytes(), nil
159}
160
161func savedonk(url string, name, desc, media string, localize bool) *Donk {
162 if url == "" {
163 return nil
164 }
165 donk := finddonk(url)
166 if donk != nil {
167 return donk
168 }
169 donk = new(Donk)
170 log.Printf("saving donk: %s", url)
171 xid := xfiltrate()
172 data := []byte{}
173 if localize {
174 fn := func() (interface{}, error) {
175 return fetchsome(url)
176 }
177 ii, err := flightdeck.Call(url, fn)
178 if err != nil {
179 localize = false
180 goto saveit
181 }
182 data = ii.([]byte)
183
184 if len(data) == 10*1024*1024 {
185 log.Printf("truncation likely")
186 }
187 if strings.HasPrefix(media, "image") {
188 img, err := shrinkit(data)
189 if err != nil {
190 log.Printf("unable to decode image: %s", err)
191 localize = false
192 data = []byte{}
193 goto saveit
194 }
195 data = img.Data
196 format := img.Format
197 media = "image/" + format
198 if format == "jpeg" {
199 format = "jpg"
200 }
201 xid = xid + "." + format
202 } else if 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 needxonkid(user *WhatAbout, xid string) bool {
245 if strings.HasPrefix(xid, user.URL+"/") {
246 return false
247 }
248 if rejectorigin(user.ID, xid) {
249 return false
250 }
251 if iszonked(user.ID, xid) {
252 log.Printf("already zonked: %s", xid)
253 return false
254 }
255 var id int64
256 row := stmtFindXonk.QueryRow(user.ID, xid)
257 err := row.Scan(&id)
258 if err == nil {
259 return false
260 }
261 if err != sql.ErrNoRows {
262 log.Printf("error querying xonk: %s", err)
263 }
264 return true
265}
266
267func eradicatexonk(userid int64, xid string) {
268 xonk := getxonk(userid, xid)
269 if xonk != nil {
270 deletehonk(xonk.ID)
271 }
272 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
273 if err != nil {
274 log.Printf("error eradicating: %s", err)
275 }
276}
277
278func savexonk(x *Honk) {
279 log.Printf("saving xonk: %s", x.XID)
280 go handles(x.Honker)
281 go handles(x.Oonker)
282 savehonk(x)
283}
284
285type Box struct {
286 In string
287 Out string
288 Shared string
289}
290
291var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
292 var info string
293 row := stmtGetXonker.QueryRow(ident, "boxes")
294 err := row.Scan(&info)
295 if err != nil {
296 log.Printf("need to get boxes for %s", ident)
297 var j junk.Junk
298 j, err = GetJunk(ident)
299 if err != nil {
300 log.Printf("error getting boxes: %s", err)
301 return nil, false
302 }
303 allinjest(originate(ident), j)
304 row = stmtGetXonker.QueryRow(ident, "boxes")
305 err = row.Scan(&info)
306 }
307 if err == nil {
308 m := strings.Split(info, " ")
309 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
310 return b, true
311 }
312 return nil, false
313}})
314
315func gimmexonks(user *WhatAbout, outbox string) {
316 log.Printf("getting outbox: %s", outbox)
317 j, err := GetJunk(outbox)
318 if err != nil {
319 log.Printf("error getting outbox: %s", err)
320 return
321 }
322 t, _ := j.GetString("type")
323 origin := originate(outbox)
324 if t == "OrderedCollection" {
325 items, _ := j.GetArray("orderedItems")
326 if items == nil {
327 items, _ = j.GetArray("items")
328 }
329 if items == nil {
330 obj, ok := j.GetMap("first")
331 if ok {
332 items, _ = obj.GetArray("orderedItems")
333 } else {
334 page1, ok := j.GetString("first")
335 if ok {
336 j, err = GetJunk(page1)
337 if err != nil {
338 log.Printf("error gettings page1: %s", err)
339 return
340 }
341 items, _ = j.GetArray("orderedItems")
342 }
343 }
344 }
345 if len(items) > 20 {
346 items = items[0:20]
347 }
348 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
349 items[i], items[j] = items[j], items[i]
350 }
351 for _, item := range items {
352 obj, ok := item.(junk.Junk)
353 if ok {
354 xonksaver(user, obj, origin)
355 continue
356 }
357 xid, ok := item.(string)
358 if ok {
359 if !needxonkid(user, xid) {
360 continue
361 }
362 obj, err = GetJunk(xid)
363 if err != nil {
364 log.Printf("error getting item: %s", err)
365 continue
366 }
367 xonksaver(user, obj, originate(xid))
368 }
369 }
370 }
371}
372
373func whosthere(xid string) ([]string, string) {
374 obj, err := GetJunk(xid)
375 if err != nil {
376 log.Printf("error getting remote xonk: %s", err)
377 return nil, ""
378 }
379 convoy, _ := obj.GetString("context")
380 if convoy == "" {
381 convoy, _ = obj.GetString("conversation")
382 }
383 return newphone(nil, obj), convoy
384}
385
386func newphone(a []string, obj junk.Junk) []string {
387 for _, addr := range []string{"to", "cc", "attributedTo"} {
388 who, _ := obj.GetString(addr)
389 if who != "" {
390 a = append(a, who)
391 }
392 whos, _ := obj.GetArray(addr)
393 for _, w := range whos {
394 who, _ := w.(string)
395 if who != "" {
396 a = append(a, who)
397 }
398 }
399 }
400 return a
401}
402
403func extractattrto(obj junk.Junk) string {
404 who, _ := obj.GetString("attributedTo")
405 if who != "" {
406 return who
407 }
408 o, ok := obj.GetMap("attributedTo")
409 if ok {
410 id, ok := o.GetString("id")
411 if ok {
412 return id
413 }
414 }
415 arr, _ := obj.GetArray("attributedTo")
416 for _, a := range arr {
417 o, ok := a.(junk.Junk)
418 if ok {
419 t, _ := o.GetString("type")
420 id, _ := o.GetString("id")
421 if t == "Person" || t == "" {
422 return id
423 }
424 }
425 s, ok := a.(string)
426 if ok {
427 return s
428 }
429 }
430 return ""
431}
432
433func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
434 depth := 0
435 maxdepth := 10
436 currenttid := ""
437 goingup := 0
438 var xonkxonkfn func(item junk.Junk, origin string) *Honk
439
440 saveonemore := func(xid string) {
441 log.Printf("getting onemore: %s", xid)
442 if depth >= maxdepth {
443 log.Printf("in too deep")
444 return
445 }
446 obj, err := GetJunkHardMode(xid)
447 if err != nil {
448 log.Printf("error getting onemore: %s: %s", xid, err)
449 return
450 }
451 depth++
452 xonkxonkfn(obj, originate(xid))
453 depth--
454 }
455
456 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
457 // id, _ := item.GetString( "id")
458 what, _ := item.GetString("type")
459 dt, _ := item.GetString("published")
460
461 var err error
462 var xid, rid, url, content, precis, convoy string
463 var replies []string
464 var obj junk.Junk
465 var ok bool
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 !needxonkid(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 "Audio":
567 fallthrough
568 case "Video":
569 fallthrough
570 case "Question":
571 fallthrough
572 case "Note":
573 fallthrough
574 case "Article":
575 fallthrough
576 case "Page":
577 obj = item
578 what = "honk"
579 case "Event":
580 obj = item
581 what = "event"
582 default:
583 log.Printf("unknown activity: %s", what)
584 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
585 item.Write(fd)
586 io.WriteString(fd, "\n")
587 fd.Close()
588 return nil
589 }
590
591 if obj != nil {
592 _, ok := obj.GetString("diaspora:guid")
593 if ok {
594 // friendica does the silliest bonks
595 c, ok := obj.GetString("source", "content")
596 if ok {
597 re_link := regexp.MustCompile(`link='([^']*)'`)
598 m := re_link.FindStringSubmatch(c)
599 if len(m) > 1 {
600 xid := m[1]
601 log.Printf("getting friendica flavored bonk: %s", xid)
602 if !needxonkid(user, xid) {
603 return nil
604 }
605 newobj, err := GetJunkHardMode(xid)
606 if err != nil {
607 log.Printf("error getting bonk: %s: %s", xid, err)
608 } else {
609 obj = newobj
610 origin = originate(xid)
611 what = "bonk"
612 }
613 }
614 }
615 }
616 }
617
618 var xonk Honk
619 // early init
620 xonk.UserID = user.ID
621 xonk.Honker, _ = item.GetString("actor")
622 if xonk.Honker == "" {
623 xonk.Honker, _ = item.GetString("attributedTo")
624 }
625 if obj != nil {
626 if xonk.Honker == "" {
627 xonk.Honker = extractattrto(obj)
628 }
629 xonk.Oonker = extractattrto(obj)
630 if xonk.Oonker == xonk.Honker {
631 xonk.Oonker = ""
632 }
633 xonk.Audience = newphone(nil, obj)
634 }
635 xonk.Audience = append(xonk.Audience, xonk.Honker)
636 xonk.Audience = oneofakind(xonk.Audience)
637
638 var mentions []string
639 if obj != nil {
640 ot, _ := obj.GetString("type")
641 url, _ = obj.GetString("url")
642 dt2, ok := obj.GetString("published")
643 if ok {
644 dt = dt2
645 }
646 xid, _ = obj.GetString("id")
647 precis, _ = obj.GetString("summary")
648 if precis == "" {
649 precis, _ = obj.GetString("name")
650 }
651 content, _ = obj.GetString("content")
652 if !strings.HasPrefix(content, "<p>") {
653 content = "<p>" + content
654 }
655 sens, _ := obj["sensitive"].(bool)
656 if sens && precis == "" {
657 precis = "unspecified horror"
658 }
659 rid, ok = obj.GetString("inReplyTo")
660 if !ok {
661 robj, ok := obj.GetMap("inReplyTo")
662 if ok {
663 rid, _ = robj.GetString("id")
664 }
665 }
666 convoy, _ = obj.GetString("context")
667 if convoy == "" {
668 convoy, _ = obj.GetString("conversation")
669 }
670 if ot == "Question" {
671 if what == "honk" {
672 what = "qonk"
673 }
674 content += "<ul>"
675 ans, _ := obj.GetArray("oneOf")
676 for _, ai := range ans {
677 a, ok := ai.(junk.Junk)
678 if !ok {
679 continue
680 }
681 as, _ := a.GetString("name")
682 content += "<li>" + as
683 }
684 ans, _ = obj.GetArray("anyOf")
685 for _, ai := range ans {
686 a, ok := ai.(junk.Junk)
687 if !ok {
688 continue
689 }
690 as, _ := a.GetString("name")
691 content += "<li>" + as
692 }
693 content += "</ul>"
694 }
695 if what == "honk" && rid != "" {
696 what = "tonk"
697 }
698 atts, _ := obj.GetArray("attachment")
699 for i, atti := range atts {
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 tag, ok := tagi.(junk.Junk)
736 if !ok {
737 continue
738 }
739 tt, _ := tag.GetString("type")
740 name, _ := tag.GetString("name")
741 desc, _ := tag.GetString("summary")
742 if desc == "" {
743 desc = name
744 }
745 if tt == "Emoji" {
746 icon, _ := tag.GetMap("icon")
747 mt, _ := icon.GetString("mediaType")
748 if mt == "" {
749 mt = "image/png"
750 }
751 u, _ := icon.GetString("url")
752 donk := savedonk(u, name, desc, mt, true)
753 if donk != nil {
754 xonk.Donks = append(xonk.Donks, donk)
755 }
756 }
757 if tt == "Hashtag" {
758 if name == "" || name == "#" {
759 // skip it
760 } else {
761 if name[0] != '#' {
762 name = "#" + name
763 }
764 xonk.Onts = append(xonk.Onts, name)
765 }
766 }
767 if tt == "Place" {
768 p := new(Place)
769 p.Name = name
770 p.Latitude, _ = tag["latitude"].(float64)
771 p.Longitude, _ = tag["longitude"].(float64)
772 p.Url, _ = tag.GetString("url")
773 xonk.Place = p
774 }
775 if tt == "Mention" {
776 m, _ := tag.GetString("href")
777 mentions = append(mentions, m)
778 }
779 }
780 starttime, ok := obj.GetString("startTime")
781 if ok {
782 start, err := time.Parse(time.RFC3339, starttime)
783 if err == nil {
784 t := new(Time)
785 t.StartTime = start
786 endtime, _ := obj.GetString("endTime")
787 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
788 dura, _ := obj.GetString("duration")
789 if strings.HasPrefix(dura, "PT") {
790 dura = strings.ToLower(dura[2:])
791 d, _ := time.ParseDuration(dura)
792 t.Duration = Duration(d)
793 }
794 xonk.Time = t
795 }
796 }
797 loca, ok := obj.GetMap("location")
798 if ok {
799 tt, _ := loca.GetString("type")
800 name, _ := loca.GetString("name")
801 if tt == "Place" {
802 p := new(Place)
803 p.Name = name
804 p.Latitude, _ = loca["latitude"].(float64)
805 p.Longitude, _ = loca["longitude"].(float64)
806 p.Url, _ = loca.GetString("url")
807 xonk.Place = p
808 }
809 }
810
811 xonk.Onts = oneofakind(xonk.Onts)
812 replyobj, ok := obj.GetMap("replies")
813 if ok {
814 items, ok := replyobj.GetArray("items")
815 if !ok {
816 first, ok := replyobj.GetMap("first")
817 if ok {
818 items, _ = first.GetArray("items")
819 }
820 }
821 for _, repl := range items {
822 s, ok := repl.(string)
823 if ok {
824 replies = append(replies, s)
825 }
826 }
827 }
828
829 }
830 if originate(xid) != origin {
831 log.Printf("original sin: %s <> %s", xid, origin)
832 item.Write(os.Stdout)
833 return nil
834 }
835
836 if currenttid == "" {
837 currenttid = convoy
838 }
839
840 if len(content) > 90001 {
841 log.Printf("content too long. truncating")
842 content = content[:90001]
843 }
844
845 // init xonk
846 xonk.What = what
847 xonk.XID = xid
848 xonk.RID = rid
849 xonk.Date, _ = time.Parse(time.RFC3339, dt)
850 xonk.URL = url
851 xonk.Noise = content
852 xonk.Precis = precis
853 xonk.Format = "html"
854 xonk.Convoy = convoy
855 for _, m := range mentions {
856 if m == user.URL {
857 xonk.Whofore = 1
858 }
859 }
860 imaginate(&xonk)
861
862 if isUpdate {
863 log.Printf("something has changed! %s", xonk.XID)
864 prev := getxonk(user.ID, xonk.XID)
865 if prev == nil {
866 log.Printf("didn't find old version for update: %s", xonk.XID)
867 isUpdate = false
868 } else {
869 prev.Noise = xonk.Noise
870 prev.Precis = xonk.Precis
871 prev.Date = xonk.Date
872 prev.Donks = xonk.Donks
873 prev.Onts = xonk.Onts
874 prev.Place = xonk.Place
875 prev.Whofore = xonk.Whofore
876 updatehonk(prev)
877 }
878 }
879 if !isUpdate && needxonk(user, &xonk) {
880 if strings.HasSuffix(convoy, "#context") {
881 // friendica...
882 if rid != "" {
883 convoy = ""
884 } else {
885 convoy = url
886 }
887 }
888 if rid != "" {
889 if needxonkid(user, rid) {
890 goingup++
891 saveonemore(rid)
892 goingup--
893 }
894 if convoy == "" {
895 xx := getxonk(user.ID, rid)
896 if xx != nil {
897 convoy = xx.Convoy
898 }
899 }
900 }
901 if convoy == "" {
902 convoy = currenttid
903 }
904 if convoy == "" {
905 convoy = "missing-" + xfiltrate()
906 currenttid = convoy
907 }
908 xonk.Convoy = convoy
909 savexonk(&xonk)
910 }
911 if goingup == 0 {
912 for _, replid := range replies {
913 if needxonkid(user, replid) {
914 log.Printf("missing a reply: %s", replid)
915 saveonemore(replid)
916 }
917 }
918 }
919 return &xonk
920 }
921
922 return xonkxonkfn(item, origin)
923}
924
925func rubadubdub(user *WhatAbout, req junk.Junk) {
926 xid, _ := req.GetString("id")
927 actor, _ := req.GetString("actor")
928 j := junk.New()
929 j["@context"] = itiswhatitis
930 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
931 j["type"] = "Accept"
932 j["actor"] = user.URL
933 j["to"] = actor
934 j["published"] = time.Now().UTC().Format(time.RFC3339)
935 j["object"] = req
936
937 deliverate(0, user.ID, actor, j.ToBytes())
938}
939
940func itakeitallback(user *WhatAbout, xid string) {
941 j := junk.New()
942 j["@context"] = itiswhatitis
943 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
944 j["type"] = "Undo"
945 j["actor"] = user.URL
946 j["to"] = xid
947 f := junk.New()
948 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
949 f["type"] = "Follow"
950 f["actor"] = user.URL
951 f["to"] = xid
952 f["object"] = xid
953 j["object"] = f
954 j["published"] = time.Now().UTC().Format(time.RFC3339)
955
956 deliverate(0, user.ID, xid, j.ToBytes())
957}
958
959func subsub(user *WhatAbout, xid string, owner string) {
960 if xid == "" {
961 log.Printf("can't subscribe to empty")
962 return
963 }
964 j := junk.New()
965 j["@context"] = itiswhatitis
966 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
967 j["type"] = "Follow"
968 j["actor"] = user.URL
969 j["to"] = owner
970 j["object"] = xid
971 j["published"] = time.Now().UTC().Format(time.RFC3339)
972
973 deliverate(0, user.ID, owner, j.ToBytes())
974}
975
976// returns activity, object
977func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
978 dt := h.Date.Format(time.RFC3339)
979 var jo junk.Junk
980 j := junk.New()
981 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
982 j["actor"] = user.URL
983 j["published"] = dt
984 if h.Public {
985 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
986 } else {
987 j["to"] = h.Audience[0]
988 }
989 if len(h.Audience) > 1 {
990 j["cc"] = h.Audience[1:]
991 }
992
993 switch h.What {
994 case "update":
995 fallthrough
996 case "tonk":
997 fallthrough
998 case "event":
999 fallthrough
1000 case "honk":
1001 j["type"] = "Create"
1002 if h.What == "update" {
1003 j["type"] = "Update"
1004 }
1005
1006 jo = junk.New()
1007 jo["id"] = h.XID
1008 jo["type"] = "Note"
1009 if h.What == "event" {
1010 jo["type"] = "Event"
1011 }
1012 jo["published"] = dt
1013 jo["url"] = h.XID
1014 jo["attributedTo"] = user.URL
1015 if h.RID != "" {
1016 jo["inReplyTo"] = h.RID
1017 }
1018 if h.Convoy != "" {
1019 jo["context"] = h.Convoy
1020 jo["conversation"] = h.Convoy
1021 }
1022 jo["to"] = h.Audience[0]
1023 if len(h.Audience) > 1 {
1024 jo["cc"] = h.Audience[1:]
1025 }
1026 if !h.Public {
1027 jo["directMessage"] = true
1028 }
1029 mentions := bunchofgrapes(h.Noise)
1030 translate(h, true)
1031 jo["summary"] = html.EscapeString(h.Precis)
1032 jo["content"] = h.Noise
1033 if h.Precis != "" {
1034 jo["sensitive"] = true
1035 }
1036
1037 var replies []string
1038 for _, reply := range h.Replies {
1039 replies = append(replies, reply.XID)
1040 }
1041 if len(replies) > 0 {
1042 jr := junk.New()
1043 jr["type"] = "Collection"
1044 jr["totalItems"] = len(replies)
1045 jr["items"] = replies
1046 jo["replies"] = jr
1047 }
1048
1049 var tags []junk.Junk
1050 for _, m := range mentions {
1051 t := junk.New()
1052 t["type"] = "Mention"
1053 t["name"] = m.who
1054 t["href"] = m.where
1055 tags = append(tags, t)
1056 }
1057 for _, o := range h.Onts {
1058 t := junk.New()
1059 t["type"] = "Hashtag"
1060 o = strings.ToLower(o)
1061 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1062 t["name"] = o
1063 tags = append(tags, t)
1064 }
1065 for _, e := range herdofemus(h.Noise) {
1066 t := junk.New()
1067 t["id"] = e.ID
1068 t["type"] = "Emoji"
1069 t["name"] = e.Name
1070 i := junk.New()
1071 i["type"] = "Image"
1072 i["mediaType"] = "image/png"
1073 i["url"] = e.ID
1074 t["icon"] = i
1075 tags = append(tags, t)
1076 }
1077 if len(tags) > 0 {
1078 jo["tag"] = tags
1079 }
1080 if p := h.Place; p != nil {
1081 t := junk.New()
1082 t["type"] = "Place"
1083 if p.Name != "" {
1084 t["name"] = p.Name
1085 }
1086 if p.Latitude != 0 {
1087 t["latitude"] = p.Latitude
1088 }
1089 if p.Longitude != 0 {
1090 t["longitude"] = p.Longitude
1091 }
1092 if p.Url != "" {
1093 t["url"] = p.Url
1094 }
1095 jo["location"] = t
1096 }
1097 if t := h.Time; t != nil {
1098 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1099 if t.Duration != 0 {
1100 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1101 }
1102 }
1103 var atts []junk.Junk
1104 for _, d := range h.Donks {
1105 if re_emus.MatchString(d.Name) {
1106 continue
1107 }
1108 jd := junk.New()
1109 jd["mediaType"] = d.Media
1110 jd["name"] = d.Name
1111 jd["summary"] = html.EscapeString(d.Desc)
1112 jd["type"] = "Document"
1113 jd["url"] = d.URL
1114 atts = append(atts, jd)
1115 }
1116 if len(atts) > 0 {
1117 jo["attachment"] = atts
1118 }
1119 j["object"] = jo
1120 case "bonk":
1121 j["type"] = "Announce"
1122 if h.Convoy != "" {
1123 j["context"] = h.Convoy
1124 }
1125 j["object"] = h.XID
1126 case "unbonk":
1127 b := junk.New()
1128 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1129 b["type"] = "Announce"
1130 b["actor"] = user.URL
1131 if h.Convoy != "" {
1132 b["context"] = h.Convoy
1133 }
1134 b["object"] = h.XID
1135 j["type"] = "Undo"
1136 j["object"] = b
1137 case "zonk":
1138 j["type"] = "Delete"
1139 j["object"] = h.XID
1140 case "ack":
1141 j["type"] = "Read"
1142 j["object"] = h.XID
1143 if h.Convoy != "" {
1144 j["context"] = h.Convoy
1145 }
1146 case "deack":
1147 b := junk.New()
1148 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1149 b["type"] = "Read"
1150 b["actor"] = user.URL
1151 b["object"] = h.XID
1152 if h.Convoy != "" {
1153 b["context"] = h.Convoy
1154 }
1155 j["type"] = "Undo"
1156 j["object"] = b
1157 }
1158
1159 return j, jo
1160}
1161
1162var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1163 row := stmtAnyXonk.QueryRow(xid)
1164 honk := scanhonk(row)
1165 if honk == nil || !honk.Public {
1166 return nil, true
1167 }
1168 user, _ := butwhatabout(honk.Username)
1169 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1170 reversehonks(rawhonks)
1171 for _, h := range rawhonks {
1172 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1173 honk.Replies = append(honk.Replies, h)
1174 }
1175 }
1176 donksforhonks([]*Honk{honk})
1177 _, j := jonkjonk(user, honk)
1178 j["@context"] = itiswhatitis
1179
1180 return j.ToBytes(), true
1181}, Limit: 128})
1182
1183func gimmejonk(xid string) ([]byte, bool) {
1184 var j []byte
1185 ok := oldjonks.Get(xid, &j)
1186 return j, ok
1187}
1188
1189func honkworldwide(user *WhatAbout, honk *Honk) {
1190 jonk, _ := jonkjonk(user, honk)
1191 jonk["@context"] = itiswhatitis
1192 msg := jonk.ToBytes()
1193
1194 rcpts := make(map[string]bool)
1195 for _, a := range honk.Audience {
1196 if a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1197 continue
1198 }
1199 var box *Box
1200 ok := boxofboxes.Get(a, &box)
1201 if ok && honk.Public && box.Shared != "" {
1202 rcpts["%"+box.Shared] = true
1203 } else {
1204 rcpts[a] = true
1205 }
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}