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