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, "https://") {
246 return false
247 }
248 if strings.HasPrefix(xid, user.URL+"/") {
249 return false
250 }
251 if rejectorigin(user.ID, xid) {
252 return false
253 }
254 if iszonked(user.ID, xid) {
255 log.Printf("already zonked: %s", xid)
256 return false
257 }
258 var id int64
259 row := stmtFindXonk.QueryRow(user.ID, xid)
260 err := row.Scan(&id)
261 if err == nil {
262 return false
263 }
264 if err != sql.ErrNoRows {
265 log.Printf("error querying xonk: %s", err)
266 }
267 return true
268}
269
270func eradicatexonk(userid int64, xid string) {
271 xonk := getxonk(userid, xid)
272 if xonk != nil {
273 deletehonk(xonk.ID)
274 }
275 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
276 if err != nil {
277 log.Printf("error eradicating: %s", err)
278 }
279}
280
281func savexonk(x *Honk) {
282 log.Printf("saving xonk: %s", x.XID)
283 go handles(x.Honker)
284 go handles(x.Oonker)
285 savehonk(x)
286}
287
288type Box struct {
289 In string
290 Out string
291 Shared string
292}
293
294var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
295 var info string
296 row := stmtGetXonker.QueryRow(ident, "boxes")
297 err := row.Scan(&info)
298 if err != nil {
299 log.Printf("need to get boxes for %s", ident)
300 var j junk.Junk
301 j, err = GetJunk(ident)
302 if err != nil {
303 log.Printf("error getting boxes: %s", err)
304 return nil, false
305 }
306 allinjest(originate(ident), j)
307 row = stmtGetXonker.QueryRow(ident, "boxes")
308 err = row.Scan(&info)
309 }
310 if err == nil {
311 m := strings.Split(info, " ")
312 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
313 return b, true
314 }
315 return nil, false
316}})
317
318func gimmexonks(user *WhatAbout, outbox string) {
319 log.Printf("getting outbox: %s", outbox)
320 j, err := GetJunk(outbox)
321 if err != nil {
322 log.Printf("error getting outbox: %s", err)
323 return
324 }
325 t, _ := j.GetString("type")
326 origin := originate(outbox)
327 if t == "OrderedCollection" {
328 items, _ := j.GetArray("orderedItems")
329 if items == nil {
330 items, _ = j.GetArray("items")
331 }
332 if items == nil {
333 obj, ok := j.GetMap("first")
334 if ok {
335 items, _ = obj.GetArray("orderedItems")
336 } else {
337 page1, ok := j.GetString("first")
338 if ok {
339 j, err = GetJunk(page1)
340 if err != nil {
341 log.Printf("error gettings page1: %s", err)
342 return
343 }
344 items, _ = j.GetArray("orderedItems")
345 }
346 }
347 }
348 if len(items) > 20 {
349 items = items[0:20]
350 }
351 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
352 items[i], items[j] = items[j], items[i]
353 }
354 for _, item := range items {
355 obj, ok := item.(junk.Junk)
356 if ok {
357 xonksaver(user, obj, origin)
358 continue
359 }
360 xid, ok := item.(string)
361 if ok {
362 if !needxonkid(user, xid) {
363 continue
364 }
365 obj, err = GetJunk(xid)
366 if err != nil {
367 log.Printf("error getting item: %s", err)
368 continue
369 }
370 xonksaver(user, obj, originate(xid))
371 }
372 }
373 }
374}
375
376func whosthere(xid string) ([]string, string) {
377 obj, err := GetJunk(xid)
378 if err != nil {
379 log.Printf("error getting remote xonk: %s", err)
380 return nil, ""
381 }
382 convoy, _ := obj.GetString("context")
383 if convoy == "" {
384 convoy, _ = obj.GetString("conversation")
385 }
386 return newphone(nil, obj), convoy
387}
388
389func newphone(a []string, obj junk.Junk) []string {
390 for _, addr := range []string{"to", "cc", "attributedTo"} {
391 who, _ := obj.GetString(addr)
392 if who != "" {
393 a = append(a, who)
394 }
395 whos, _ := obj.GetArray(addr)
396 for _, w := range whos {
397 who, _ := w.(string)
398 if who != "" {
399 a = append(a, who)
400 }
401 }
402 }
403 return a
404}
405
406func extractattrto(obj junk.Junk) string {
407 who, _ := obj.GetString("attributedTo")
408 if who != "" {
409 return who
410 }
411 o, ok := obj.GetMap("attributedTo")
412 if ok {
413 id, ok := o.GetString("id")
414 if ok {
415 return id
416 }
417 }
418 arr, _ := obj.GetArray("attributedTo")
419 for _, a := range arr {
420 o, ok := a.(junk.Junk)
421 if ok {
422 t, _ := o.GetString("type")
423 id, _ := o.GetString("id")
424 if t == "Person" || t == "" {
425 return id
426 }
427 }
428 s, ok := a.(string)
429 if ok {
430 return s
431 }
432 }
433 return ""
434}
435
436func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
437 depth := 0
438 maxdepth := 10
439 currenttid := ""
440 goingup := 0
441 var xonkxonkfn func(item junk.Junk, origin string) *Honk
442
443 saveonemore := func(xid string) {
444 log.Printf("getting onemore: %s", xid)
445 if depth >= maxdepth {
446 log.Printf("in too deep")
447 return
448 }
449 obj, err := GetJunkHardMode(xid)
450 if err != nil {
451 log.Printf("error getting onemore: %s: %s", xid, err)
452 return
453 }
454 depth++
455 xonkxonkfn(obj, originate(xid))
456 depth--
457 }
458
459 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
460 // id, _ := item.GetString( "id")
461 what, _ := item.GetString("type")
462 dt, _ := item.GetString("published")
463
464 var err error
465 var xid, rid, url, content, precis, convoy string
466 var replies []string
467 var obj junk.Junk
468 var ok bool
469 isUpdate := false
470 switch what {
471 case "Delete":
472 obj, ok = item.GetMap("object")
473 if ok {
474 xid, _ = obj.GetString("id")
475 } else {
476 xid, _ = item.GetString("object")
477 }
478 if xid == "" {
479 return nil
480 }
481 if originate(xid) != origin {
482 log.Printf("forged delete: %s", xid)
483 return nil
484 }
485 log.Printf("eradicating %s", xid)
486 eradicatexonk(user.ID, xid)
487 return nil
488 case "Tombstone":
489 xid, _ = item.GetString("id")
490 if xid == "" {
491 return nil
492 }
493 if originate(xid) != origin {
494 log.Printf("forged delete: %s", xid)
495 return nil
496 }
497 log.Printf("eradicating %s", xid)
498 eradicatexonk(user.ID, xid)
499 return nil
500 case "Announce":
501 obj, ok = item.GetMap("object")
502 if ok {
503 xid, _ = obj.GetString("id")
504 } else {
505 xid, _ = item.GetString("object")
506 }
507 if !needxonkid(user, xid) {
508 return nil
509 }
510 log.Printf("getting bonk: %s", xid)
511 obj, err = GetJunkHardMode(xid)
512 if err != nil {
513 log.Printf("error getting bonk: %s: %s", xid, err)
514 }
515 origin = originate(xid)
516 what = "bonk"
517 case "Update":
518 isUpdate = true
519 fallthrough
520 case "Create":
521 obj, ok = item.GetMap("object")
522 if !ok {
523 xid, _ = item.GetString("object")
524 log.Printf("getting created honk: %s", xid)
525 obj, err = GetJunkHardMode(xid)
526 if err != nil {
527 log.Printf("error getting creation: %s", err)
528 }
529 }
530 what = "honk"
531 if obj != nil {
532 t, _ := obj.GetString("type")
533 switch t {
534 case "Event":
535 what = "event"
536 }
537 }
538 case "Read":
539 xid, ok = item.GetString("object")
540 if ok {
541 if !needxonkid(user, xid) {
542 log.Printf("don't need read obj: %s", xid)
543 return nil
544 }
545 obj, err = GetJunkHardMode(xid)
546 if err != nil {
547 log.Printf("error getting read: %s", err)
548 return nil
549 }
550 return xonkxonkfn(obj, originate(xid))
551 }
552 return nil
553 case "Add":
554 xid, ok = item.GetString("object")
555 if ok {
556 // check target...
557 if !needxonkid(user, xid) {
558 log.Printf("don't need added obj: %s", xid)
559 return nil
560 }
561 obj, err = GetJunkHardMode(xid)
562 if err != nil {
563 log.Printf("error getting add: %s", err)
564 return nil
565 }
566 return xonkxonkfn(obj, originate(xid))
567 }
568 return nil
569 case "Audio":
570 fallthrough
571 case "Video":
572 fallthrough
573 case "Question":
574 fallthrough
575 case "Note":
576 fallthrough
577 case "Article":
578 fallthrough
579 case "Page":
580 obj = item
581 what = "honk"
582 case "Event":
583 obj = item
584 what = "event"
585 default:
586 log.Printf("unknown activity: %s", what)
587 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
588 item.Write(fd)
589 io.WriteString(fd, "\n")
590 fd.Close()
591 return nil
592 }
593
594 if obj != nil {
595 _, ok := obj.GetString("diaspora:guid")
596 if ok {
597 // friendica does the silliest bonks
598 c, ok := obj.GetString("source", "content")
599 if ok {
600 re_link := regexp.MustCompile(`link='([^']*)'`)
601 m := re_link.FindStringSubmatch(c)
602 if len(m) > 1 {
603 xid := m[1]
604 log.Printf("getting friendica flavored bonk: %s", xid)
605 if !needxonkid(user, xid) {
606 return nil
607 }
608 newobj, err := GetJunkHardMode(xid)
609 if err != nil {
610 log.Printf("error getting bonk: %s: %s", xid, err)
611 } else {
612 obj = newobj
613 origin = originate(xid)
614 what = "bonk"
615 }
616 }
617 }
618 }
619 }
620
621 var xonk Honk
622 // early init
623 xonk.UserID = user.ID
624 xonk.Honker, _ = item.GetString("actor")
625 if xonk.Honker == "" {
626 xonk.Honker, _ = item.GetString("attributedTo")
627 }
628 if obj != nil {
629 if xonk.Honker == "" {
630 xonk.Honker = extractattrto(obj)
631 }
632 xonk.Oonker = extractattrto(obj)
633 if xonk.Oonker == xonk.Honker {
634 xonk.Oonker = ""
635 }
636 xonk.Audience = newphone(nil, obj)
637 }
638 xonk.Audience = append(xonk.Audience, xonk.Honker)
639 xonk.Audience = oneofakind(xonk.Audience)
640
641 var mentions []Mention
642 if obj != nil {
643 ot, _ := obj.GetString("type")
644 url, _ = obj.GetString("url")
645 dt2, ok := obj.GetString("published")
646 if ok {
647 dt = dt2
648 }
649 xid, _ = obj.GetString("id")
650 precis, _ = obj.GetString("summary")
651 if precis == "" {
652 precis, _ = obj.GetString("name")
653 }
654 content, _ = obj.GetString("content")
655 if !strings.HasPrefix(content, "<p>") {
656 content = "<p>" + content
657 }
658 sens, _ := obj["sensitive"].(bool)
659 if sens && precis == "" {
660 precis = "unspecified horror"
661 }
662 rid, ok = obj.GetString("inReplyTo")
663 if !ok {
664 robj, ok := obj.GetMap("inReplyTo")
665 if ok {
666 rid, _ = robj.GetString("id")
667 }
668 }
669 convoy, _ = obj.GetString("context")
670 if convoy == "" {
671 convoy, _ = obj.GetString("conversation")
672 }
673 if ot == "Question" {
674 if what == "honk" {
675 what = "qonk"
676 }
677 content += "<ul>"
678 ans, _ := obj.GetArray("oneOf")
679 for _, ai := range ans {
680 a, ok := ai.(junk.Junk)
681 if !ok {
682 continue
683 }
684 as, _ := a.GetString("name")
685 content += "<li>" + as
686 }
687 ans, _ = obj.GetArray("anyOf")
688 for _, ai := range ans {
689 a, ok := ai.(junk.Junk)
690 if !ok {
691 continue
692 }
693 as, _ := a.GetString("name")
694 content += "<li>" + as
695 }
696 content += "</ul>"
697 }
698 if what == "honk" && rid != "" {
699 what = "tonk"
700 }
701 atts, _ := obj.GetArray("attachment")
702 for i, atti := range atts {
703 att, ok := atti.(junk.Junk)
704 if !ok {
705 continue
706 }
707 at, _ := att.GetString("type")
708 mt, _ := att.GetString("mediaType")
709 u, _ := att.GetString("url")
710 name, _ := att.GetString("name")
711 desc, _ := att.GetString("summary")
712 if desc == "" {
713 desc = name
714 }
715 localize := false
716 if i > 4 {
717 log.Printf("excessive attachment: %s", at)
718 } else if at == "Document" || at == "Image" {
719 mt = strings.ToLower(mt)
720 log.Printf("attachment: %s %s", mt, u)
721 if mt == "text/plain" || mt == "application/pdf" ||
722 strings.HasPrefix(mt, "image") {
723 localize = true
724 }
725 } else {
726 log.Printf("unknown attachment: %s", at)
727 }
728 if skipMedia(&xonk) {
729 localize = false
730 }
731 donk := savedonk(u, name, desc, mt, localize)
732 if donk != nil {
733 xonk.Donks = append(xonk.Donks, donk)
734 }
735 }
736 tags, _ := obj.GetArray("tag")
737 for _, tagi := range tags {
738 tag, ok := tagi.(junk.Junk)
739 if !ok {
740 continue
741 }
742 tt, _ := tag.GetString("type")
743 name, _ := tag.GetString("name")
744 desc, _ := tag.GetString("summary")
745 if desc == "" {
746 desc = name
747 }
748 if tt == "Emoji" {
749 icon, _ := tag.GetMap("icon")
750 mt, _ := icon.GetString("mediaType")
751 if mt == "" {
752 mt = "image/png"
753 }
754 u, _ := icon.GetString("url")
755 donk := savedonk(u, name, desc, mt, true)
756 if donk != nil {
757 xonk.Donks = append(xonk.Donks, donk)
758 }
759 }
760 if tt == "Hashtag" {
761 if name == "" || name == "#" {
762 // skip it
763 } else {
764 if name[0] != '#' {
765 name = "#" + name
766 }
767 xonk.Onts = append(xonk.Onts, name)
768 }
769 }
770 if tt == "Place" {
771 p := new(Place)
772 p.Name = name
773 p.Latitude, _ = tag["latitude"].(float64)
774 p.Longitude, _ = tag["longitude"].(float64)
775 p.Url, _ = tag.GetString("url")
776 xonk.Place = p
777 }
778 if tt == "Mention" {
779 var m Mention
780 m.Who, _ = tag.GetString("name")
781 m.Where, _ = tag.GetString("href")
782 mentions = append(mentions, m)
783 }
784 }
785 starttime, ok := obj.GetString("startTime")
786 if ok {
787 start, err := time.Parse(time.RFC3339, starttime)
788 if err == nil {
789 t := new(Time)
790 t.StartTime = start
791 endtime, _ := obj.GetString("endTime")
792 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
793 dura, _ := obj.GetString("duration")
794 if strings.HasPrefix(dura, "PT") {
795 dura = strings.ToLower(dura[2:])
796 d, _ := time.ParseDuration(dura)
797 t.Duration = Duration(d)
798 }
799 xonk.Time = t
800 }
801 }
802 loca, ok := obj.GetMap("location")
803 if ok {
804 tt, _ := loca.GetString("type")
805 name, _ := loca.GetString("name")
806 if tt == "Place" {
807 p := new(Place)
808 p.Name = name
809 p.Latitude, _ = loca["latitude"].(float64)
810 p.Longitude, _ = loca["longitude"].(float64)
811 p.Url, _ = loca.GetString("url")
812 xonk.Place = p
813 }
814 }
815
816 xonk.Onts = oneofakind(xonk.Onts)
817 replyobj, ok := obj.GetMap("replies")
818 if ok {
819 items, ok := replyobj.GetArray("items")
820 if !ok {
821 first, ok := replyobj.GetMap("first")
822 if ok {
823 items, _ = first.GetArray("items")
824 }
825 }
826 for _, repl := range items {
827 s, ok := repl.(string)
828 if ok {
829 replies = append(replies, s)
830 }
831 }
832 }
833
834 }
835 if originate(xid) != origin {
836 log.Printf("original sin: %s <> %s", xid, origin)
837 item.Write(os.Stdout)
838 return nil
839 }
840
841 if currenttid == "" {
842 currenttid = convoy
843 }
844
845 if len(content) > 90001 {
846 log.Printf("content too long. truncating")
847 content = content[:90001]
848 }
849
850 // init xonk
851 xonk.What = what
852 xonk.XID = xid
853 xonk.RID = rid
854 xonk.Date, _ = time.Parse(time.RFC3339, dt)
855 xonk.URL = url
856 xonk.Noise = content
857 xonk.Precis = precis
858 xonk.Format = "html"
859 xonk.Convoy = convoy
860 xonk.Mentions = mentions
861 for _, m := range mentions {
862 if m.Where == user.URL {
863 xonk.Whofore = 1
864 }
865 }
866 imaginate(&xonk)
867
868 if isUpdate {
869 log.Printf("something has changed! %s", xonk.XID)
870 prev := getxonk(user.ID, xonk.XID)
871 if prev == nil {
872 log.Printf("didn't find old version for update: %s", xonk.XID)
873 isUpdate = false
874 } else {
875 xonk.ID = prev.ID
876 updatehonk(&xonk)
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 = "data:,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 boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1190 rcpts := make(map[string]bool)
1191 for _, a := range addresses {
1192 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1193 continue
1194 }
1195 if a[0] == '%' {
1196 rcpts[a] = true
1197 continue
1198 }
1199 var box *Box
1200 ok := boxofboxes.Get(a, &box)
1201 if ok && useshared && box.Shared != "" {
1202 rcpts["%"+box.Shared] = true
1203 } else {
1204 rcpts[a] = true
1205 }
1206 }
1207 return rcpts
1208}
1209
1210func honkworldwide(user *WhatAbout, honk *Honk) {
1211 jonk, _ := jonkjonk(user, honk)
1212 jonk["@context"] = itiswhatitis
1213 msg := jonk.ToBytes()
1214
1215 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1216
1217 if honk.Public {
1218 for _, h := range getdubs(user.ID) {
1219 if h.XID == user.URL {
1220 continue
1221 }
1222 var box *Box
1223 ok := boxofboxes.Get(h.XID, &box)
1224 if ok && box.Shared != "" {
1225 rcpts["%"+box.Shared] = true
1226 } else {
1227 rcpts[h.XID] = true
1228 }
1229 }
1230 for _, f := range getbacktracks(honk.XID) {
1231 rcpts[f] = true
1232 }
1233 }
1234 for a := range rcpts {
1235 go deliverate(0, user.ID, a, msg)
1236 }
1237 if honk.Public && len(honk.Onts) > 0 {
1238 collectiveaction(honk)
1239 }
1240}
1241
1242func collectiveaction(honk *Honk) {
1243 user := getserveruser()
1244 for _, ont := range honk.Onts {
1245 dubs := getnameddubs(serverUID, ont)
1246 if len(dubs) == 0 {
1247 continue
1248 }
1249 j := junk.New()
1250 j["@context"] = itiswhatitis
1251 j["type"] = "Add"
1252 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1253 j["actor"] = user.URL
1254 j["object"] = honk.XID
1255 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1256 rcpts := make(map[string]bool)
1257 for _, dub := range dubs {
1258 var box *Box
1259 ok := boxofboxes.Get(dub.XID, &box)
1260 if ok && box.Shared != "" {
1261 rcpts["%"+box.Shared] = true
1262 } else {
1263 rcpts[dub.XID] = true
1264 }
1265 }
1266 msg := j.ToBytes()
1267 for a := range rcpts {
1268 go deliverate(0, user.ID, a, msg)
1269 }
1270 }
1271}
1272
1273func junkuser(user *WhatAbout) []byte {
1274 about := markitzero(user.About)
1275
1276 j := junk.New()
1277 j["@context"] = itiswhatitis
1278 j["id"] = user.URL
1279 j["inbox"] = user.URL + "/inbox"
1280 j["outbox"] = user.URL + "/outbox"
1281 j["name"] = user.Display
1282 j["preferredUsername"] = user.Name
1283 j["summary"] = about
1284 if user.ID > 0 {
1285 j["type"] = "Person"
1286 j["url"] = user.URL
1287 j["followers"] = user.URL + "/followers"
1288 j["following"] = user.URL + "/following"
1289 a := junk.New()
1290 a["type"] = "Image"
1291 a["mediaType"] = "image/png"
1292 if ava := user.Options.Avatar; ava != "" {
1293 a["url"] = ava
1294 } else {
1295 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1296 }
1297 j["icon"] = a
1298 } else {
1299 j["type"] = "Service"
1300 }
1301 k := junk.New()
1302 k["id"] = user.URL + "#key"
1303 k["owner"] = user.URL
1304 k["publicKeyPem"] = user.Key
1305 j["publicKey"] = k
1306
1307 return j.ToBytes()
1308}
1309
1310var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1311 user, err := butwhatabout(name)
1312 if err != nil {
1313 return nil, false
1314 }
1315 return junkuser(user), true
1316}, Duration: 1 * time.Minute})
1317
1318func asjonker(name string) ([]byte, bool) {
1319 var j []byte
1320 ok := oldjonkers.Get(name, &j)
1321 return j, ok
1322}
1323
1324var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1325 m := strings.Split(name, "@")
1326 if len(m) != 2 {
1327 log.Printf("bad fish name: %s", name)
1328 return "", true
1329 }
1330 var href string
1331 row := stmtGetXonker.QueryRow(name, "fishname")
1332 err := row.Scan(&href)
1333 if err == nil {
1334 return href, true
1335 }
1336 log.Printf("fishing for %s", name)
1337 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1338 if err != nil {
1339 log.Printf("failed to go fish %s: %s", name, err)
1340 return "", true
1341 }
1342 links, _ := j.GetArray("links")
1343 for _, li := range links {
1344 l, ok := li.(junk.Junk)
1345 if !ok {
1346 continue
1347 }
1348 href, _ := l.GetString("href")
1349 rel, _ := l.GetString("rel")
1350 t, _ := l.GetString("type")
1351 if rel == "self" && friendorfoe(t) {
1352 when := time.Now().UTC().Format(dbtimeformat)
1353 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1354 if err != nil {
1355 log.Printf("error saving fishname: %s", err)
1356 }
1357 return href, true
1358 }
1359 }
1360 return href, true
1361}})
1362
1363func gofish(name string) string {
1364 if name[0] == '@' {
1365 name = name[1:]
1366 }
1367 var href string
1368 handfull.Get(name, &href)
1369 return href
1370}
1371
1372func investigate(name string) (*SomeThing, error) {
1373 if name == "" {
1374 return nil, fmt.Errorf("no name")
1375 }
1376 if name[0] == '@' {
1377 name = gofish(name)
1378 }
1379 if name == "" {
1380 return nil, fmt.Errorf("no name")
1381 }
1382 obj, err := GetJunkFast(name)
1383 if err != nil {
1384 return nil, err
1385 }
1386 allinjest(originate(name), obj)
1387 return somethingabout(obj)
1388}
1389
1390func somethingabout(obj junk.Junk) (*SomeThing, error) {
1391 info := new(SomeThing)
1392 t, _ := obj.GetString("type")
1393 switch t {
1394 case "Person":
1395 fallthrough
1396 case "Organization":
1397 fallthrough
1398 case "Application":
1399 fallthrough
1400 case "Service":
1401 info.What = SomeActor
1402 case "OrderedCollection":
1403 fallthrough
1404 case "Collection":
1405 info.What = SomeCollection
1406 default:
1407 return nil, fmt.Errorf("unknown object type")
1408 }
1409 info.XID, _ = obj.GetString("id")
1410 info.Name, _ = obj.GetString("preferredUsername")
1411 if info.Name == "" {
1412 info.Name, _ = obj.GetString("name")
1413 }
1414 info.Owner, _ = obj.GetString("attributedTo")
1415 if info.Owner == "" {
1416 info.Owner = info.XID
1417 }
1418 return info, nil
1419}
1420
1421func allinjest(origin string, obj junk.Junk) {
1422 keyobj, ok := obj.GetMap("publicKey")
1423 if ok {
1424 ingestpubkey(origin, keyobj)
1425 }
1426 ingestboxes(origin, obj)
1427 ingesthandle(origin, obj)
1428}
1429
1430func ingestpubkey(origin string, obj junk.Junk) {
1431 keyobj, ok := obj.GetMap("publicKey")
1432 if ok {
1433 obj = keyobj
1434 }
1435 keyname, ok := obj.GetString("id")
1436 var data string
1437 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1438 err := row.Scan(&data)
1439 if err == nil {
1440 return
1441 }
1442 if !ok || origin != originate(keyname) {
1443 log.Printf("bad key origin %s <> %s", origin, keyname)
1444 return
1445 }
1446 log.Printf("ingesting a needed pubkey: %s", keyname)
1447 owner, ok := obj.GetString("owner")
1448 if !ok {
1449 log.Printf("error finding %s pubkey owner", keyname)
1450 return
1451 }
1452 data, ok = obj.GetString("publicKeyPem")
1453 if !ok {
1454 log.Printf("error finding %s pubkey", keyname)
1455 return
1456 }
1457 if originate(owner) != origin {
1458 log.Printf("bad key owner: %s <> %s", owner, origin)
1459 return
1460 }
1461 _, _, err = httpsig.DecodeKey(data)
1462 if err != nil {
1463 log.Printf("error decoding %s pubkey: %s", keyname, err)
1464 return
1465 }
1466 when := time.Now().UTC().Format(dbtimeformat)
1467 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1468 if err != nil {
1469 log.Printf("error saving key: %s", err)
1470 }
1471}
1472
1473func ingestboxes(origin string, obj junk.Junk) {
1474 ident, _ := obj.GetString("id")
1475 if ident == "" {
1476 return
1477 }
1478 if originate(ident) != origin {
1479 return
1480 }
1481 var info string
1482 row := stmtGetXonker.QueryRow(ident, "boxes")
1483 err := row.Scan(&info)
1484 if err == nil {
1485 return
1486 }
1487 log.Printf("ingesting boxes: %s", ident)
1488 inbox, _ := obj.GetString("inbox")
1489 outbox, _ := obj.GetString("outbox")
1490 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1491 if inbox != "" {
1492 when := time.Now().UTC().Format(dbtimeformat)
1493 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1494 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1495 if err != nil {
1496 log.Printf("error saving boxes: %s", err)
1497 }
1498 }
1499}
1500
1501func ingesthandle(origin string, obj junk.Junk) {
1502 xid, _ := obj.GetString("id")
1503 if xid == "" {
1504 return
1505 }
1506 if originate(xid) != origin {
1507 return
1508 }
1509 var handle string
1510 row := stmtGetXonker.QueryRow(xid, "handle")
1511 err := row.Scan(&handle)
1512 if err == nil {
1513 return
1514 }
1515 handle, _ = obj.GetString("preferredUsername")
1516 if handle != "" {
1517 when := time.Now().UTC().Format(dbtimeformat)
1518 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1519 if err != nil {
1520 log.Printf("error saving handle: %s", err)
1521 }
1522 }
1523}