activity.go (view raw)
1//
2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
3//
4// Permission to use, copy, modify, and distribute this software for any
5// purpose with or without fee is hereby granted, provided that the above
6// copyright notice and this permission notice appear in all copies.
7//
8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15
16package main
17
18import (
19 "bytes"
20 "database/sql"
21 "errors"
22 "fmt"
23 "html"
24 "io"
25 "log"
26 notrand "math/rand"
27 "net/http"
28 "net/url"
29 "os"
30 "regexp"
31 "strings"
32 "time"
33
34 "humungus.tedunangst.com/r/webs/cache"
35 "humungus.tedunangst.com/r/webs/gate"
36 "humungus.tedunangst.com/r/webs/httpsig"
37 "humungus.tedunangst.com/r/webs/junk"
38 "humungus.tedunangst.com/r/webs/templates"
39)
40
41var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
42var thefakename = `application/activity+json`
43var falsenames = []string{
44 `application/ld+json`,
45 `application/activity+json`,
46}
47var itiswhatitis = "https://www.w3.org/ns/activitystreams"
48var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
49
50func friendorfoe(ct string) bool {
51 ct = strings.ToLower(ct)
52 for _, at := range falsenames {
53 if strings.HasPrefix(ct, at) {
54 return true
55 }
56 }
57 return false
58}
59
60func PostJunk(keyname string, key httpsig.PrivateKey, url string, j junk.Junk) error {
61 return PostMsg(keyname, key, url, j.ToBytes())
62}
63
64func PostMsg(keyname string, key httpsig.PrivateKey, url string, msg []byte) error {
65 client := http.DefaultClient
66 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
67 if err != nil {
68 return err
69 }
70 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
71 req.Header.Set("Content-Type", theonetruename)
72 httpsig.SignRequest(keyname, key, req, msg)
73 resp, err := client.Do(req)
74 if err != nil {
75 return err
76 }
77 resp.Body.Close()
78 switch resp.StatusCode {
79 case 200:
80 case 201:
81 case 202:
82 default:
83 return fmt.Errorf("http post status: %d", resp.StatusCode)
84 }
85 log.Printf("successful post: %s %d", url, resp.StatusCode)
86 return nil
87}
88
89type JunkError struct {
90 Junk junk.Junk
91 Err error
92}
93
94func GetJunk(url string) (junk.Junk, error) {
95 return GetJunkTimeout(url, 30*time.Second)
96}
97
98func GetJunkFast(url string) (junk.Junk, error) {
99 return GetJunkTimeout(url, 5*time.Second)
100}
101
102func GetJunkHardMode(url string) (junk.Junk, error) {
103 j, err := GetJunk(url)
104 if err != nil {
105 emsg := err.Error()
106 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
107 log.Printf("trying again after error: %s", emsg)
108 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
109 j, err = GetJunk(url)
110 if err != nil {
111 log.Printf("still couldn't get it")
112 } else {
113 log.Printf("retry success!")
114 }
115 }
116 }
117 return j, err
118}
119
120var flightdeck = gate.NewSerializer()
121
122func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
123
124 fn := func() (interface{}, error) {
125 at := thefakename
126 if strings.Contains(url, ".well-known/webfinger?resource") {
127 at = "application/jrd+json"
128 }
129 j, err := junk.Get(url, junk.GetArgs{
130 Accept: at,
131 Agent: "honksnonk/5.0; " + serverName,
132 Timeout: timeout,
133 })
134 return j, err
135 }
136
137 ji, err := flightdeck.Call(url, fn)
138 if err != nil {
139 return nil, err
140 }
141 j := ji.(junk.Junk)
142 return j, nil
143}
144
145func fetchsome(url string) ([]byte, error) {
146 resp, err := http.Get(url)
147 if err != nil {
148 log.Printf("error fetching %s: %s", url, err)
149 return nil, err
150 }
151 defer resp.Body.Close()
152 if resp.StatusCode != 200 {
153 return nil, errors.New("not 200")
154 }
155 var buf bytes.Buffer
156 limiter := io.LimitReader(resp.Body, 10*1024*1024)
157 io.Copy(&buf, limiter)
158 return buf.Bytes(), nil
159}
160
161func savedonk(url string, name, desc, media string, localize bool) *Donk {
162 if url == "" {
163 return nil
164 }
165 donk := finddonk(url)
166 if donk != nil {
167 return donk
168 }
169 donk = new(Donk)
170 log.Printf("saving donk: %s", url)
171 xid := xfiltrate()
172 data := []byte{}
173 if localize {
174 fn := func() (interface{}, error) {
175 return fetchsome(url)
176 }
177 ii, err := flightdeck.Call(url, fn)
178 if err != nil {
179 localize = false
180 goto saveit
181 }
182 data = ii.([]byte)
183
184 if len(data) == 10*1024*1024 {
185 log.Printf("truncation likely")
186 }
187 if strings.HasPrefix(media, "image") {
188 img, err := shrinkit(data)
189 if err != nil {
190 log.Printf("unable to decode image: %s", err)
191 localize = false
192 data = []byte{}
193 goto saveit
194 }
195 data = img.Data
196 format := img.Format
197 media = "image/" + format
198 if format == "jpeg" {
199 format = "jpg"
200 }
201 xid = xid + "." + format
202 } else if media == "application/pdf" {
203 if len(data) > 1000000 {
204 log.Printf("not saving large pdf")
205 localize = false
206 data = []byte{}
207 }
208 } else if len(data) > 100000 {
209 log.Printf("not saving large attachment")
210 localize = false
211 data = []byte{}
212 }
213 }
214saveit:
215 fileid, err := savefile(xid, name, desc, url, media, localize, data)
216 if err != nil {
217 log.Printf("error saving file %s: %s", url, err)
218 return nil
219 }
220 donk.FileID = fileid
221 donk.XID = xid
222 return donk
223}
224
225func iszonked(userid int64, xid string) bool {
226 var id int64
227 row := stmtFindZonk.QueryRow(userid, xid)
228 err := row.Scan(&id)
229 if err == nil {
230 return true
231 }
232 if err != sql.ErrNoRows {
233 log.Printf("error querying zonk: %s", err)
234 }
235 return false
236}
237
238func needxonk(user *WhatAbout, x *Honk) bool {
239 if rejectxonk(x) {
240 return false
241 }
242 return needxonkid(user, x.XID)
243}
244func needbonkid(user *WhatAbout, xid string) bool {
245 return needxonkidX(user, xid, true)
246}
247func needxonkid(user *WhatAbout, xid string) bool {
248 return needxonkidX(user, xid, false)
249}
250func needxonkidX(user *WhatAbout, xid string, isannounce bool) bool {
251 if !strings.HasPrefix(xid, "https://") {
252 return false
253 }
254 if strings.HasPrefix(xid, user.URL+"/") {
255 return false
256 }
257 if rejectorigin(user.ID, xid, isannounce) {
258 return false
259 }
260 if iszonked(user.ID, xid) {
261 log.Printf("already zonked: %s", xid)
262 return false
263 }
264 var id int64
265 row := stmtFindXonk.QueryRow(user.ID, xid)
266 err := row.Scan(&id)
267 if err == nil {
268 return false
269 }
270 if err != sql.ErrNoRows {
271 log.Printf("error querying xonk: %s", err)
272 }
273 return true
274}
275
276func eradicatexonk(userid int64, xid string) {
277 xonk := getxonk(userid, xid)
278 if xonk != nil {
279 deletehonk(xonk.ID)
280 }
281 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
282 if err != nil {
283 log.Printf("error eradicating: %s", err)
284 }
285}
286
287func savexonk(x *Honk) {
288 log.Printf("saving xonk: %s", x.XID)
289 go handles(x.Honker)
290 go handles(x.Oonker)
291 savehonk(x)
292}
293
294type Box struct {
295 In string
296 Out string
297 Shared string
298}
299
300var boxofboxes = cache.New(cache.Options{Filler: func(ident string) (*Box, bool) {
301 var info string
302 row := stmtGetXonker.QueryRow(ident, "boxes")
303 err := row.Scan(&info)
304 if err != nil {
305 log.Printf("need to get boxes for %s", ident)
306 var j junk.Junk
307 j, err = GetJunk(ident)
308 if err != nil {
309 log.Printf("error getting boxes: %s", err)
310 return nil, false
311 }
312 allinjest(originate(ident), j)
313 row = stmtGetXonker.QueryRow(ident, "boxes")
314 err = row.Scan(&info)
315 }
316 if err == nil {
317 m := strings.Split(info, " ")
318 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
319 return b, true
320 }
321 return nil, false
322}})
323
324func gimmexonks(user *WhatAbout, outbox string) {
325 log.Printf("getting outbox: %s", outbox)
326 j, err := GetJunk(outbox)
327 if err != nil {
328 log.Printf("error getting outbox: %s", err)
329 return
330 }
331 t, _ := j.GetString("type")
332 origin := originate(outbox)
333 if t == "OrderedCollection" {
334 items, _ := j.GetArray("orderedItems")
335 if items == nil {
336 items, _ = j.GetArray("items")
337 }
338 if items == nil {
339 obj, ok := j.GetMap("first")
340 if ok {
341 items, _ = obj.GetArray("orderedItems")
342 } else {
343 page1, ok := j.GetString("first")
344 if ok {
345 j, err = GetJunk(page1)
346 if err != nil {
347 log.Printf("error gettings page1: %s", err)
348 return
349 }
350 items, _ = j.GetArray("orderedItems")
351 }
352 }
353 }
354 if len(items) > 20 {
355 items = items[0:20]
356 }
357 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
358 items[i], items[j] = items[j], items[i]
359 }
360 for _, item := range items {
361 obj, ok := item.(junk.Junk)
362 if ok {
363 xonksaver(user, obj, origin)
364 continue
365 }
366 xid, ok := item.(string)
367 if ok {
368 if !needxonkid(user, xid) {
369 continue
370 }
371 obj, err = GetJunk(xid)
372 if err != nil {
373 log.Printf("error getting item: %s", err)
374 continue
375 }
376 xonksaver(user, obj, originate(xid))
377 }
378 }
379 }
380}
381
382func whosthere(xid string) ([]string, string) {
383 obj, err := GetJunk(xid)
384 if err != nil {
385 log.Printf("error getting remote xonk: %s", err)
386 return nil, ""
387 }
388 convoy, _ := obj.GetString("context")
389 if convoy == "" {
390 convoy, _ = obj.GetString("conversation")
391 }
392 return newphone(nil, obj), convoy
393}
394
395func newphone(a []string, obj junk.Junk) []string {
396 for _, addr := range []string{"to", "cc", "attributedTo"} {
397 who, _ := obj.GetString(addr)
398 if who != "" {
399 a = append(a, who)
400 }
401 whos, _ := obj.GetArray(addr)
402 for _, w := range whos {
403 who, _ := w.(string)
404 if who != "" {
405 a = append(a, who)
406 }
407 }
408 }
409 return a
410}
411
412func extractattrto(obj junk.Junk) string {
413 who, _ := obj.GetString("attributedTo")
414 if who != "" {
415 return who
416 }
417 o, ok := obj.GetMap("attributedTo")
418 if ok {
419 id, ok := o.GetString("id")
420 if ok {
421 return id
422 }
423 }
424 arr, _ := obj.GetArray("attributedTo")
425 for _, a := range arr {
426 o, ok := a.(junk.Junk)
427 if ok {
428 t, _ := o.GetString("type")
429 id, _ := o.GetString("id")
430 if t == "Person" || t == "" {
431 return id
432 }
433 }
434 s, ok := a.(string)
435 if ok {
436 return s
437 }
438 }
439 return ""
440}
441
442func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
443 depth := 0
444 maxdepth := 10
445 currenttid := ""
446 goingup := 0
447 var xonkxonkfn func(item junk.Junk, origin string) *Honk
448
449 saveonemore := func(xid string) {
450 log.Printf("getting onemore: %s", xid)
451 if depth >= maxdepth {
452 log.Printf("in too deep")
453 return
454 }
455 obj, err := GetJunkHardMode(xid)
456 if err != nil {
457 log.Printf("error getting onemore: %s: %s", xid, err)
458 return
459 }
460 depth++
461 xonkxonkfn(obj, originate(xid))
462 depth--
463 }
464
465 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
466 // id, _ := item.GetString( "id")
467 what, _ := item.GetString("type")
468 dt, ok := item.GetString("published")
469 if !ok {
470 dt = time.Now().Format(time.RFC3339)
471 }
472
473 var err error
474 var xid, rid, url, content, precis, convoy string
475 var replies []string
476 var obj junk.Junk
477 isUpdate := false
478 switch what {
479 case "Delete":
480 obj, ok = item.GetMap("object")
481 if ok {
482 xid, _ = obj.GetString("id")
483 } else {
484 xid, _ = item.GetString("object")
485 }
486 if xid == "" {
487 return nil
488 }
489 if originate(xid) != origin {
490 log.Printf("forged delete: %s", xid)
491 return nil
492 }
493 log.Printf("eradicating %s", xid)
494 eradicatexonk(user.ID, xid)
495 return nil
496 case "Tombstone":
497 xid, _ = item.GetString("id")
498 if xid == "" {
499 return nil
500 }
501 if originate(xid) != origin {
502 log.Printf("forged delete: %s", xid)
503 return nil
504 }
505 log.Printf("eradicating %s", xid)
506 eradicatexonk(user.ID, xid)
507 return nil
508 case "Announce":
509 obj, ok = item.GetMap("object")
510 if ok {
511 xid, _ = obj.GetString("id")
512 } else {
513 xid, _ = item.GetString("object")
514 }
515 if !needbonkid(user, xid) {
516 return nil
517 }
518 log.Printf("getting bonk: %s", xid)
519 obj, err = GetJunkHardMode(xid)
520 if err != nil {
521 log.Printf("error getting bonk: %s: %s", xid, err)
522 }
523 origin = originate(xid)
524 what = "bonk"
525 case "Update":
526 isUpdate = true
527 fallthrough
528 case "Create":
529 obj, ok = item.GetMap("object")
530 if !ok {
531 xid, _ = item.GetString("object")
532 log.Printf("getting created honk: %s", xid)
533 obj, err = GetJunkHardMode(xid)
534 if err != nil {
535 log.Printf("error getting creation: %s", err)
536 }
537 }
538 what = "honk"
539 if obj != nil {
540 t, _ := obj.GetString("type")
541 switch t {
542 case "Event":
543 what = "event"
544 }
545 }
546 case "Read":
547 xid, ok = item.GetString("object")
548 if ok {
549 if !needxonkid(user, xid) {
550 log.Printf("don't need read obj: %s", xid)
551 return nil
552 }
553 obj, err = GetJunkHardMode(xid)
554 if err != nil {
555 log.Printf("error getting read: %s", err)
556 return nil
557 }
558 return xonkxonkfn(obj, originate(xid))
559 }
560 return nil
561 case "Add":
562 xid, ok = item.GetString("object")
563 if ok {
564 // check target...
565 if !needxonkid(user, xid) {
566 log.Printf("don't need added obj: %s", xid)
567 return nil
568 }
569 obj, err = GetJunkHardMode(xid)
570 if err != nil {
571 log.Printf("error getting add: %s", err)
572 return nil
573 }
574 return xonkxonkfn(obj, originate(xid))
575 }
576 return nil
577 case "Move":
578 obj = item
579 what = "move"
580 case "Audio":
581 fallthrough
582 case "Image":
583 fallthrough
584 case "Video":
585 fallthrough
586 case "Question":
587 fallthrough
588 case "Note":
589 fallthrough
590 case "Article":
591 fallthrough
592 case "Page":
593 obj = item
594 what = "honk"
595 case "Event":
596 obj = item
597 what = "event"
598 default:
599 log.Printf("unknown activity: %s", what)
600 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
601 item.Write(fd)
602 io.WriteString(fd, "\n")
603 fd.Close()
604 return nil
605 }
606
607 if obj != nil {
608 if _, ok := obj.GetString("diaspora:guid"); ok {
609 // friendica does the silliest bonks
610 if c, ok := obj.GetString("source", "content"); ok {
611 re_link := regexp.MustCompile(`link='([^']*)'`)
612 if m := re_link.FindStringSubmatch(c); len(m) > 1 {
613 xid = m[1]
614 log.Printf("getting friendica flavored bonk: %s", xid)
615 if !needxonkid(user, xid) {
616 return nil
617 }
618 if newobj, err := GetJunkHardMode(xid); err == nil {
619 obj = newobj
620 origin = originate(xid)
621 what = "bonk"
622 } else {
623 log.Printf("error getting bonk: %s: %s", xid, err)
624 }
625 }
626 }
627 }
628 xid, _ = obj.GetString("id")
629 }
630
631 if xid == "" {
632 log.Printf("don't know what xid is")
633 item.Write(os.Stdout)
634 return nil
635 }
636 if originate(xid) != origin {
637 log.Printf("original sin: %s <> %s", xid, origin)
638 item.Write(os.Stdout)
639 return nil
640 }
641
642 var xonk Honk
643 // early init
644 xonk.XID = xid
645 xonk.UserID = user.ID
646 xonk.Honker, _ = item.GetString("actor")
647 if xonk.Honker == "" {
648 xonk.Honker, _ = item.GetString("attributedTo")
649 }
650 if obj != nil {
651 if xonk.Honker == "" {
652 xonk.Honker = extractattrto(obj)
653 }
654 xonk.Oonker = extractattrto(obj)
655 if xonk.Oonker == xonk.Honker {
656 xonk.Oonker = ""
657 }
658 xonk.Audience = newphone(nil, obj)
659 }
660 xonk.Audience = append(xonk.Audience, xonk.Honker)
661 xonk.Audience = oneofakind(xonk.Audience)
662
663 var mentions []Mention
664 if obj != nil {
665 ot, _ := obj.GetString("type")
666 url, _ = obj.GetString("url")
667 if dt2, ok := obj.GetString("published"); ok {
668 dt = dt2
669 }
670 content, _ = obj.GetString("content")
671 if !strings.HasPrefix(content, "<p>") {
672 content = "<p>" + content
673 }
674 precis, _ = obj.GetString("summary")
675 if name, ok := obj.GetString("name"); ok {
676 if precis != "" {
677 content = precis + "<p>" + content
678 }
679 precis = html.EscapeString(name)
680 }
681 if sens, _ := obj["sensitive"].(bool); sens && precis == "" {
682 precis = "unspecified horror"
683 }
684 rid, ok = obj.GetString("inReplyTo")
685 if !ok {
686 if robj, ok := obj.GetMap("inReplyTo"); ok {
687 rid, _ = robj.GetString("id")
688 }
689 }
690 convoy, _ = obj.GetString("context")
691 if convoy == "" {
692 convoy, _ = obj.GetString("conversation")
693 }
694 if ot == "Question" {
695 if what == "honk" {
696 what = "qonk"
697 }
698 content += "<ul>"
699 ans, _ := obj.GetArray("oneOf")
700 for _, ai := range ans {
701 a, ok := ai.(junk.Junk)
702 if !ok {
703 continue
704 }
705 as, _ := a.GetString("name")
706 content += "<li>" + as
707 }
708 ans, _ = obj.GetArray("anyOf")
709 for _, ai := range ans {
710 a, ok := ai.(junk.Junk)
711 if !ok {
712 continue
713 }
714 as, _ := a.GetString("name")
715 content += "<li>" + as
716 }
717 content += "</ul>"
718 }
719 if ot == "Move" {
720 targ, _ := obj.GetString("target")
721 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
722 }
723 if what == "honk" && rid != "" {
724 what = "tonk"
725 }
726 atts, _ := obj.GetArray("attachment")
727 for i, atti := range atts {
728 if rejectxonk(&xonk) {
729 log.Printf("skipping rejected attachment: %s", xid)
730 continue
731 }
732 att, ok := atti.(junk.Junk)
733 if !ok {
734 continue
735 }
736 at, _ := att.GetString("type")
737 mt, _ := att.GetString("mediaType")
738 u, _ := att.GetString("url")
739 name, _ := att.GetString("name")
740 desc, _ := att.GetString("summary")
741 if desc == "" {
742 desc = name
743 }
744 localize := false
745 if i > 4 {
746 log.Printf("excessive attachment: %s", at)
747 } else if at == "Document" || at == "Image" {
748 mt = strings.ToLower(mt)
749 log.Printf("attachment: %s %s", mt, u)
750 if mt == "text/plain" || mt == "application/pdf" ||
751 strings.HasPrefix(mt, "image") {
752 localize = true
753 }
754 } else {
755 log.Printf("unknown attachment: %s", at)
756 }
757 if skipMedia(&xonk) {
758 localize = false
759 }
760 donk := savedonk(u, name, desc, mt, localize)
761 if donk != nil {
762 xonk.Donks = append(xonk.Donks, donk)
763 }
764 }
765 tags, _ := obj.GetArray("tag")
766 for _, tagi := range tags {
767 if rejectxonk(&xonk) {
768 log.Printf("skipping rejected attachment: %s", xid)
769 continue
770 }
771 tag, ok := tagi.(junk.Junk)
772 if !ok {
773 continue
774 }
775 tt, _ := tag.GetString("type")
776 name, _ := tag.GetString("name")
777 desc, _ := tag.GetString("summary")
778 if desc == "" {
779 desc = name
780 }
781 if tt == "Emoji" {
782 icon, _ := tag.GetMap("icon")
783 mt, _ := icon.GetString("mediaType")
784 if mt == "" {
785 mt = "image/png"
786 }
787 u, _ := icon.GetString("url")
788 donk := savedonk(u, name, desc, mt, true)
789 if donk != nil {
790 xonk.Donks = append(xonk.Donks, donk)
791 }
792 }
793 if tt == "Hashtag" {
794 if name == "" || name == "#" {
795 // skip it
796 } else {
797 if name[0] != '#' {
798 name = "#" + name
799 }
800 xonk.Onts = append(xonk.Onts, name)
801 }
802 }
803 if tt == "Place" {
804 p := new(Place)
805 p.Name = name
806 p.Latitude, _ = tag["latitude"].(float64)
807 p.Longitude, _ = tag["longitude"].(float64)
808 p.Url, _ = tag.GetString("url")
809 xonk.Place = p
810 }
811 if tt == "Mention" {
812 var m Mention
813 m.Who, _ = tag.GetString("name")
814 m.Where, _ = tag.GetString("href")
815 mentions = append(mentions, m)
816 }
817 }
818 if starttime, ok := obj.GetString("startTime"); ok {
819 if start, err := time.Parse(time.RFC3339, starttime); err == nil {
820 t := new(Time)
821 t.StartTime = start
822 endtime, _ := obj.GetString("endTime")
823 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
824 dura, _ := obj.GetString("duration")
825 if strings.HasPrefix(dura, "PT") {
826 dura = strings.ToLower(dura[2:])
827 d, _ := time.ParseDuration(dura)
828 t.Duration = Duration(d)
829 }
830 xonk.Time = t
831 }
832 }
833 if loca, ok := obj.GetMap("location"); ok {
834 if tt, _ := loca.GetString("type"); tt == "Place" {
835 p := new(Place)
836 p.Name, _ = loca.GetString("name")
837 p.Latitude, _ = loca["latitude"].(float64)
838 p.Longitude, _ = loca["longitude"].(float64)
839 p.Url, _ = loca.GetString("url")
840 xonk.Place = p
841 }
842 }
843
844 xonk.Onts = oneofakind(xonk.Onts)
845 replyobj, ok := obj.GetMap("replies")
846 if ok {
847 items, ok := replyobj.GetArray("items")
848 if !ok {
849 first, ok := replyobj.GetMap("first")
850 if ok {
851 items, _ = first.GetArray("items")
852 }
853 }
854 for _, repl := range items {
855 s, ok := repl.(string)
856 if ok {
857 replies = append(replies, s)
858 }
859 }
860 }
861
862 }
863
864 if currenttid == "" {
865 currenttid = convoy
866 }
867
868 if len(content) > 90001 {
869 log.Printf("content too long. truncating")
870 content = content[:90001]
871 }
872
873 // init xonk
874 xonk.What = what
875 xonk.RID = rid
876 xonk.Date, _ = time.Parse(time.RFC3339, dt)
877 xonk.URL = url
878 xonk.Noise = content
879 xonk.Precis = precis
880 xonk.Format = "html"
881 xonk.Convoy = convoy
882 xonk.Mentions = mentions
883 for _, m := range mentions {
884 if m.Where == user.URL {
885 xonk.Whofore = 1
886 }
887 }
888 imaginate(&xonk)
889
890 if isUpdate {
891 log.Printf("something has changed! %s", xonk.XID)
892 prev := getxonk(user.ID, xonk.XID)
893 if prev == nil {
894 log.Printf("didn't find old version for update: %s", xonk.XID)
895 isUpdate = false
896 } else {
897 xonk.ID = prev.ID
898 updatehonk(&xonk)
899 }
900 }
901 if !isUpdate && needxonk(user, &xonk) {
902 if strings.HasSuffix(convoy, "#context") {
903 // friendica...
904 if rid != "" {
905 convoy = ""
906 } else {
907 convoy = url
908 }
909 }
910 if rid != "" {
911 if needxonkid(user, rid) {
912 goingup++
913 saveonemore(rid)
914 goingup--
915 }
916 if convoy == "" {
917 xx := getxonk(user.ID, rid)
918 if xx != nil {
919 convoy = xx.Convoy
920 }
921 }
922 }
923 if convoy == "" {
924 convoy = currenttid
925 }
926 if convoy == "" {
927 convoy = "data:,missing-" + xfiltrate()
928 currenttid = convoy
929 }
930 xonk.Convoy = convoy
931 savexonk(&xonk)
932 }
933 if goingup == 0 {
934 for _, replid := range replies {
935 if needxonkid(user, replid) {
936 log.Printf("missing a reply: %s", replid)
937 saveonemore(replid)
938 }
939 }
940 }
941 return &xonk
942 }
943
944 return xonkxonkfn(item, origin)
945}
946
947func rubadubdub(user *WhatAbout, req junk.Junk) {
948 xid, _ := req.GetString("id")
949 actor, _ := req.GetString("actor")
950 j := junk.New()
951 j["@context"] = itiswhatitis
952 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
953 j["type"] = "Accept"
954 j["actor"] = user.URL
955 j["to"] = actor
956 j["published"] = time.Now().UTC().Format(time.RFC3339)
957 j["object"] = req
958
959 deliverate(0, user.ID, actor, j.ToBytes())
960}
961
962func itakeitallback(user *WhatAbout, xid string) {
963 j := junk.New()
964 j["@context"] = itiswhatitis
965 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
966 j["type"] = "Undo"
967 j["actor"] = user.URL
968 j["to"] = xid
969 f := junk.New()
970 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
971 f["type"] = "Follow"
972 f["actor"] = user.URL
973 f["to"] = xid
974 f["object"] = xid
975 j["object"] = f
976 j["published"] = time.Now().UTC().Format(time.RFC3339)
977
978 deliverate(0, user.ID, xid, j.ToBytes())
979}
980
981func subsub(user *WhatAbout, xid string, owner string) {
982 if xid == "" {
983 log.Printf("can't subscribe to empty")
984 return
985 }
986 j := junk.New()
987 j["@context"] = itiswhatitis
988 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
989 j["type"] = "Follow"
990 j["actor"] = user.URL
991 j["to"] = owner
992 j["object"] = xid
993 j["published"] = time.Now().UTC().Format(time.RFC3339)
994
995 deliverate(0, user.ID, owner, j.ToBytes())
996}
997
998// returns activity, object
999func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
1000 dt := h.Date.Format(time.RFC3339)
1001 var jo junk.Junk
1002 j := junk.New()
1003 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
1004 j["actor"] = user.URL
1005 j["published"] = dt
1006 if h.Public {
1007 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
1008 } else {
1009 j["to"] = h.Audience[0]
1010 }
1011 if len(h.Audience) > 1 {
1012 j["cc"] = h.Audience[1:]
1013 }
1014
1015 switch h.What {
1016 case "update":
1017 fallthrough
1018 case "tonk":
1019 fallthrough
1020 case "event":
1021 fallthrough
1022 case "honk":
1023 j["type"] = "Create"
1024 if h.What == "update" {
1025 j["type"] = "Update"
1026 }
1027
1028 jo = junk.New()
1029 jo["id"] = h.XID
1030 jo["type"] = "Note"
1031 if h.What == "event" {
1032 jo["type"] = "Event"
1033 }
1034 jo["published"] = dt
1035 jo["url"] = h.XID
1036 jo["attributedTo"] = user.URL
1037 if h.RID != "" {
1038 jo["inReplyTo"] = h.RID
1039 }
1040 if h.Convoy != "" {
1041 jo["context"] = h.Convoy
1042 jo["conversation"] = h.Convoy
1043 }
1044 jo["to"] = h.Audience[0]
1045 if len(h.Audience) > 1 {
1046 jo["cc"] = h.Audience[1:]
1047 }
1048 if !h.Public {
1049 jo["directMessage"] = true
1050 }
1051 mentions := bunchofgrapes(h.Noise)
1052 translate(h)
1053 redoimages(h)
1054 jo["summary"] = html.EscapeString(h.Precis)
1055 jo["content"] = h.Noise
1056 if h.Precis != "" {
1057 jo["sensitive"] = true
1058 }
1059
1060 var replies []string
1061 for _, reply := range h.Replies {
1062 replies = append(replies, reply.XID)
1063 }
1064 if len(replies) > 0 {
1065 jr := junk.New()
1066 jr["type"] = "Collection"
1067 jr["totalItems"] = len(replies)
1068 jr["items"] = replies
1069 jo["replies"] = jr
1070 }
1071
1072 var tags []junk.Junk
1073 for _, m := range mentions {
1074 t := junk.New()
1075 t["type"] = "Mention"
1076 t["name"] = m.Who
1077 t["href"] = m.Where
1078 tags = append(tags, t)
1079 }
1080 for _, o := range h.Onts {
1081 t := junk.New()
1082 t["type"] = "Hashtag"
1083 o = strings.ToLower(o)
1084 t["href"] = fmt.Sprintf("https://%s/o/%s", serverName, o[1:])
1085 t["name"] = o
1086 tags = append(tags, t)
1087 }
1088 for _, e := range herdofemus(h.Noise) {
1089 t := junk.New()
1090 t["id"] = e.ID
1091 t["type"] = "Emoji"
1092 t["name"] = e.Name
1093 i := junk.New()
1094 i["type"] = "Image"
1095 i["mediaType"] = "image/png"
1096 i["url"] = e.ID
1097 t["icon"] = i
1098 tags = append(tags, t)
1099 }
1100 if len(tags) > 0 {
1101 jo["tag"] = tags
1102 }
1103 if p := h.Place; p != nil {
1104 t := junk.New()
1105 t["type"] = "Place"
1106 if p.Name != "" {
1107 t["name"] = p.Name
1108 }
1109 if p.Latitude != 0 {
1110 t["latitude"] = p.Latitude
1111 }
1112 if p.Longitude != 0 {
1113 t["longitude"] = p.Longitude
1114 }
1115 if p.Url != "" {
1116 t["url"] = p.Url
1117 }
1118 jo["location"] = t
1119 }
1120 if t := h.Time; t != nil {
1121 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1122 if t.Duration != 0 {
1123 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1124 }
1125 }
1126 var atts []junk.Junk
1127 for _, d := range h.Donks {
1128 if re_emus.MatchString(d.Name) {
1129 continue
1130 }
1131 jd := junk.New()
1132 jd["mediaType"] = d.Media
1133 jd["name"] = d.Name
1134 jd["summary"] = html.EscapeString(d.Desc)
1135 jd["type"] = "Document"
1136 jd["url"] = d.URL
1137 atts = append(atts, jd)
1138 }
1139 if len(atts) > 0 {
1140 jo["attachment"] = atts
1141 }
1142 j["object"] = jo
1143 case "bonk":
1144 j["type"] = "Announce"
1145 if h.Convoy != "" {
1146 j["context"] = h.Convoy
1147 }
1148 j["object"] = h.XID
1149 case "unbonk":
1150 b := junk.New()
1151 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1152 b["type"] = "Announce"
1153 b["actor"] = user.URL
1154 if h.Convoy != "" {
1155 b["context"] = h.Convoy
1156 }
1157 b["object"] = h.XID
1158 j["type"] = "Undo"
1159 j["object"] = b
1160 case "zonk":
1161 j["type"] = "Delete"
1162 j["object"] = h.XID
1163 case "ack":
1164 j["type"] = "Read"
1165 j["object"] = h.XID
1166 if h.Convoy != "" {
1167 j["context"] = h.Convoy
1168 }
1169 case "react":
1170 j["type"] = "EmojiReaction"
1171 j["object"] = h.XID
1172 if h.Convoy != "" {
1173 j["context"] = h.Convoy
1174 }
1175 j["content"] = user.Options.Reaction
1176 case "deack":
1177 b := junk.New()
1178 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1179 b["type"] = "Read"
1180 b["actor"] = user.URL
1181 b["object"] = h.XID
1182 if h.Convoy != "" {
1183 b["context"] = h.Convoy
1184 }
1185 j["type"] = "Undo"
1186 j["object"] = b
1187 }
1188
1189 return j, jo
1190}
1191
1192var oldjonks = cache.New(cache.Options{Filler: func(xid string) ([]byte, bool) {
1193 row := stmtAnyXonk.QueryRow(xid)
1194 honk := scanhonk(row)
1195 if honk == nil || !honk.Public {
1196 return nil, true
1197 }
1198 user, _ := butwhatabout(honk.Username)
1199 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1200 reversehonks(rawhonks)
1201 for _, h := range rawhonks {
1202 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1203 honk.Replies = append(honk.Replies, h)
1204 }
1205 }
1206 donksforhonks([]*Honk{honk})
1207 _, j := jonkjonk(user, honk)
1208 j["@context"] = itiswhatitis
1209
1210 return j.ToBytes(), true
1211}, Limit: 128})
1212
1213func gimmejonk(xid string) ([]byte, bool) {
1214 var j []byte
1215 ok := oldjonks.Get(xid, &j)
1216 return j, ok
1217}
1218
1219func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1220 rcpts := make(map[string]bool)
1221 for _, a := range addresses {
1222 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1223 continue
1224 }
1225 if a[0] == '%' {
1226 rcpts[a] = true
1227 continue
1228 }
1229 var box *Box
1230 ok := boxofboxes.Get(a, &box)
1231 if ok && useshared && box.Shared != "" {
1232 rcpts["%"+box.Shared] = true
1233 } else {
1234 rcpts[a] = true
1235 }
1236 }
1237 return rcpts
1238}
1239
1240func honkworldwide(user *WhatAbout, honk *Honk) {
1241 jonk, _ := jonkjonk(user, honk)
1242 jonk["@context"] = itiswhatitis
1243 msg := jonk.ToBytes()
1244
1245 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1246
1247 if honk.Public {
1248 for _, h := range getdubs(user.ID) {
1249 if h.XID == user.URL {
1250 continue
1251 }
1252 var box *Box
1253 ok := boxofboxes.Get(h.XID, &box)
1254 if ok && box.Shared != "" {
1255 rcpts["%"+box.Shared] = true
1256 } else {
1257 rcpts[h.XID] = true
1258 }
1259 }
1260 for _, f := range getbacktracks(honk.XID) {
1261 rcpts[f] = true
1262 }
1263 }
1264 for a := range rcpts {
1265 go deliverate(0, user.ID, a, msg)
1266 }
1267 if honk.Public && len(honk.Onts) > 0 {
1268 collectiveaction(honk)
1269 }
1270}
1271
1272func collectiveaction(honk *Honk) {
1273 user := getserveruser()
1274 for _, ont := range honk.Onts {
1275 dubs := getnameddubs(serverUID, ont)
1276 if len(dubs) == 0 {
1277 continue
1278 }
1279 j := junk.New()
1280 j["@context"] = itiswhatitis
1281 j["type"] = "Add"
1282 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1283 j["actor"] = user.URL
1284 j["object"] = honk.XID
1285 j["target"] = fmt.Sprintf("https://%s/o/%s", serverName, ont[1:])
1286 rcpts := make(map[string]bool)
1287 for _, dub := range dubs {
1288 var box *Box
1289 ok := boxofboxes.Get(dub.XID, &box)
1290 if ok && box.Shared != "" {
1291 rcpts["%"+box.Shared] = true
1292 } else {
1293 rcpts[dub.XID] = true
1294 }
1295 }
1296 msg := j.ToBytes()
1297 for a := range rcpts {
1298 go deliverate(0, user.ID, a, msg)
1299 }
1300 }
1301}
1302
1303func junkuser(user *WhatAbout) []byte {
1304 about := markitzero(user.About)
1305
1306 j := junk.New()
1307 j["@context"] = itiswhatitis
1308 j["id"] = user.URL
1309 j["inbox"] = user.URL + "/inbox"
1310 j["outbox"] = user.URL + "/outbox"
1311 j["name"] = user.Display
1312 j["preferredUsername"] = user.Name
1313 j["summary"] = about
1314 if user.ID > 0 {
1315 j["type"] = "Person"
1316 j["url"] = user.URL
1317 j["followers"] = user.URL + "/followers"
1318 j["following"] = user.URL + "/following"
1319 a := junk.New()
1320 a["type"] = "Image"
1321 a["mediaType"] = "image/png"
1322 if ava := user.Options.Avatar; ava != "" {
1323 a["url"] = ava
1324 } else {
1325 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
1326 }
1327 j["icon"] = a
1328 } else {
1329 j["type"] = "Service"
1330 }
1331 k := junk.New()
1332 k["id"] = user.URL + "#key"
1333 k["owner"] = user.URL
1334 k["publicKeyPem"] = user.Key
1335 j["publicKey"] = k
1336
1337 return j.ToBytes()
1338}
1339
1340var oldjonkers = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
1341 user, err := butwhatabout(name)
1342 if err != nil {
1343 return nil, false
1344 }
1345 return junkuser(user), true
1346}, Duration: 1 * time.Minute})
1347
1348func asjonker(name string) ([]byte, bool) {
1349 var j []byte
1350 ok := oldjonkers.Get(name, &j)
1351 return j, ok
1352}
1353
1354var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool) {
1355 m := strings.Split(name, "@")
1356 if len(m) != 2 {
1357 log.Printf("bad fish name: %s", name)
1358 return "", true
1359 }
1360 var href string
1361 row := stmtGetXonker.QueryRow(name, "fishname")
1362 err := row.Scan(&href)
1363 if err == nil {
1364 return href, true
1365 }
1366 log.Printf("fishing for %s", name)
1367 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1368 if err != nil {
1369 log.Printf("failed to go fish %s: %s", name, err)
1370 return "", true
1371 }
1372 links, _ := j.GetArray("links")
1373 for _, li := range links {
1374 l, ok := li.(junk.Junk)
1375 if !ok {
1376 continue
1377 }
1378 href, _ := l.GetString("href")
1379 rel, _ := l.GetString("rel")
1380 t, _ := l.GetString("type")
1381 if rel == "self" && friendorfoe(t) {
1382 when := time.Now().UTC().Format(dbtimeformat)
1383 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1384 if err != nil {
1385 log.Printf("error saving fishname: %s", err)
1386 }
1387 return href, true
1388 }
1389 }
1390 return href, true
1391}})
1392
1393func gofish(name string) string {
1394 if name[0] == '@' {
1395 name = name[1:]
1396 }
1397 var href string
1398 handfull.Get(name, &href)
1399 return href
1400}
1401
1402func investigate(name string) (*SomeThing, error) {
1403 if name == "" {
1404 return nil, fmt.Errorf("no name")
1405 }
1406 if name[0] == '@' {
1407 name = gofish(name)
1408 }
1409 if name == "" {
1410 return nil, fmt.Errorf("no name")
1411 }
1412 obj, err := GetJunkFast(name)
1413 if err != nil {
1414 return nil, err
1415 }
1416 allinjest(originate(name), obj)
1417 return somethingabout(obj)
1418}
1419
1420func somethingabout(obj junk.Junk) (*SomeThing, error) {
1421 info := new(SomeThing)
1422 t, _ := obj.GetString("type")
1423 switch t {
1424 case "Person":
1425 fallthrough
1426 case "Organization":
1427 fallthrough
1428 case "Application":
1429 fallthrough
1430 case "Service":
1431 info.What = SomeActor
1432 case "OrderedCollection":
1433 fallthrough
1434 case "Collection":
1435 info.What = SomeCollection
1436 default:
1437 return nil, fmt.Errorf("unknown object type")
1438 }
1439 info.XID, _ = obj.GetString("id")
1440 info.Name, _ = obj.GetString("preferredUsername")
1441 if info.Name == "" {
1442 info.Name, _ = obj.GetString("name")
1443 }
1444 info.Owner, _ = obj.GetString("attributedTo")
1445 if info.Owner == "" {
1446 info.Owner = info.XID
1447 }
1448 return info, nil
1449}
1450
1451func allinjest(origin string, obj junk.Junk) {
1452 keyobj, ok := obj.GetMap("publicKey")
1453 if ok {
1454 ingestpubkey(origin, keyobj)
1455 }
1456 ingestboxes(origin, obj)
1457 ingesthandle(origin, obj)
1458}
1459
1460func ingestpubkey(origin string, obj junk.Junk) {
1461 keyobj, ok := obj.GetMap("publicKey")
1462 if ok {
1463 obj = keyobj
1464 }
1465 keyname, ok := obj.GetString("id")
1466 var data string
1467 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1468 err := row.Scan(&data)
1469 if err == nil {
1470 return
1471 }
1472 if !ok || origin != originate(keyname) {
1473 log.Printf("bad key origin %s <> %s", origin, keyname)
1474 return
1475 }
1476 log.Printf("ingesting a needed pubkey: %s", keyname)
1477 owner, ok := obj.GetString("owner")
1478 if !ok {
1479 log.Printf("error finding %s pubkey owner", keyname)
1480 return
1481 }
1482 data, ok = obj.GetString("publicKeyPem")
1483 if !ok {
1484 log.Printf("error finding %s pubkey", keyname)
1485 return
1486 }
1487 if originate(owner) != origin {
1488 log.Printf("bad key owner: %s <> %s", owner, origin)
1489 return
1490 }
1491 _, _, err = httpsig.DecodeKey(data)
1492 if err != nil {
1493 log.Printf("error decoding %s pubkey: %s", keyname, err)
1494 return
1495 }
1496 when := time.Now().UTC().Format(dbtimeformat)
1497 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1498 if err != nil {
1499 log.Printf("error saving key: %s", err)
1500 }
1501}
1502
1503func ingestboxes(origin string, obj junk.Junk) {
1504 ident, _ := obj.GetString("id")
1505 if ident == "" {
1506 return
1507 }
1508 if originate(ident) != origin {
1509 return
1510 }
1511 var info string
1512 row := stmtGetXonker.QueryRow(ident, "boxes")
1513 err := row.Scan(&info)
1514 if err == nil {
1515 return
1516 }
1517 log.Printf("ingesting boxes: %s", ident)
1518 inbox, _ := obj.GetString("inbox")
1519 outbox, _ := obj.GetString("outbox")
1520 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1521 if inbox != "" {
1522 when := time.Now().UTC().Format(dbtimeformat)
1523 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1524 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1525 if err != nil {
1526 log.Printf("error saving boxes: %s", err)
1527 }
1528 }
1529}
1530
1531func ingesthandle(origin string, obj junk.Junk) {
1532 xid, _ := obj.GetString("id")
1533 if xid == "" {
1534 return
1535 }
1536 if originate(xid) != origin {
1537 return
1538 }
1539 var handle string
1540 row := stmtGetXonker.QueryRow(xid, "handle")
1541 err := row.Scan(&handle)
1542 if err == nil {
1543 return
1544 }
1545 handle, _ = obj.GetString("preferredUsername")
1546 if handle != "" {
1547 when := time.Now().UTC().Format(dbtimeformat)
1548 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
1549 if err != nil {
1550 log.Printf("error saving handle: %s", err)
1551 }
1552 }
1553}