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 "context"
21 "crypto/tls"
22 "database/sql"
23 "fmt"
24 "html"
25 "io"
26 notrand "math/rand"
27 "net/http"
28 "os"
29 "regexp"
30 "strings"
31 "time"
32
33 "humungus.tedunangst.com/r/webs/gate"
34 "humungus.tedunangst.com/r/webs/gencache"
35 "humungus.tedunangst.com/r/webs/httpsig"
36 "humungus.tedunangst.com/r/webs/junk"
37 "humungus.tedunangst.com/r/webs/templates"
38)
39
40var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
41var thefakename = `application/activity+json`
42var falsenames = []string{
43 `application/ld+json`,
44 `application/activity+json`,
45}
46
47const itiswhatitis = "https://www.w3.org/ns/activitystreams"
48const papersplease = "https://w3id.org/security/v1"
49const thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
50const tinyworld = "as:Public"
51const chatKeyProp = "chatKeyV0"
52
53var fastTimeout time.Duration = 5
54var slowTimeout time.Duration = 30
55
56func friendorfoe(ct string) bool {
57 ct = strings.ToLower(ct)
58 for _, at := range falsenames {
59 if strings.HasPrefix(ct, at) {
60 return true
61 }
62 }
63 return false
64}
65
66var honkTransport = http.Transport{
67 MaxIdleConns: 120,
68 MaxConnsPerHost: 4,
69}
70
71var honkClient = http.Client{
72 Transport: &honkTransport,
73}
74
75func gogglesDoNothing() {
76 honkTransport.TLSClientConfig = &tls.Config{
77 InsecureSkipVerify: true,
78 }
79}
80
81func PostJunk(keyname string, key httpsig.PrivateKey, url string, j junk.Junk) error {
82 return PostMsg(keyname, key, url, j.ToBytes())
83}
84
85func PostMsg(keyname string, key httpsig.PrivateKey, url string, msg []byte) error {
86 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
87 if err != nil {
88 return err
89 }
90 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
91 req.Header.Set("Content-Type", theonetruename)
92 httpsig.SignRequest(keyname, key, req, msg)
93 ctx, cancel := context.WithTimeout(context.Background(), 2*slowTimeout*time.Second)
94 defer cancel()
95 req = req.WithContext(ctx)
96 resp, err := honkClient.Do(req)
97 if err != nil {
98 return err
99 }
100 defer resp.Body.Close()
101 switch resp.StatusCode {
102 case 200:
103 case 201:
104 case 202:
105 default:
106 var buf [4096]byte
107 n, _ := resp.Body.Read(buf[:])
108 dlog.Printf("post failure message: %s", buf[:n])
109 return fmt.Errorf("http post status: %d", resp.StatusCode)
110 }
111 ilog.Printf("successful post: %s %d", url, resp.StatusCode)
112 return nil
113}
114
115func GetJunk(userid int64, url string) (junk.Junk, error) {
116 return GetJunkTimeout(userid, url, slowTimeout*time.Second, nil)
117}
118
119func GetJunkFast(userid int64, url string) (junk.Junk, error) {
120 return GetJunkTimeout(userid, url, fastTimeout*time.Second, nil)
121}
122
123func GetJunkHardMode(userid int64, url string) (junk.Junk, error) {
124 j, err := GetJunk(userid, url)
125 if err != nil {
126 emsg := err.Error()
127 if emsg == "http get status: 429" || emsg == "http get status: 502" ||
128 strings.Contains(emsg, "timeout") {
129 ilog.Printf("trying %s again after error: %s", url, emsg)
130 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
131 j, err = GetJunk(userid, url)
132 if err != nil {
133 ilog.Printf("still couldn't get %s", url)
134 } else {
135 ilog.Printf("retry success!")
136 }
137 }
138 }
139 return j, err
140}
141
142var flightdeck = gate.NewSerializer()
143
144func GetJunkTimeout(userid int64, url string, timeout time.Duration, final *string) (junk.Junk, error) {
145 if rejectorigin(userid, url, false) {
146 return nil, fmt.Errorf("rejected origin: %s", url)
147 }
148 if final != nil {
149 *final = url
150 }
151 sign := func(req *http.Request) error {
152 ki := ziggy(userid)
153 if ki != nil {
154 httpsig.SignRequest(ki.keyname, ki.seckey, req, nil)
155 }
156 return nil
157 }
158 if develMode {
159 sign = nil
160 }
161 client := honkClient
162 client.CheckRedirect = func(req *http.Request, via []*http.Request) error {
163 if len(via) >= 5 {
164 return fmt.Errorf("stopped after 5 redirects")
165 }
166 if final != nil {
167 *final = req.URL.String()
168 }
169 if sign != nil {
170 sign(req)
171 }
172 return nil
173 }
174 fn := func() (interface{}, error) {
175 at := theonetruename
176 if strings.Contains(url, ".well-known/webfinger?resource") {
177 at = "application/jrd+json"
178 }
179 j, err := getsomejunk(url, junk.GetArgs{
180 Accept: at,
181 Agent: "honksnonk/5.0; " + serverName,
182 Timeout: timeout,
183 Client: &client,
184 Fixup: sign,
185 Limit: 1 * 1024 * 1024,
186 })
187 return j, err
188 }
189
190 ji, err := flightdeck.Call(url, fn)
191 if err != nil {
192 return nil, err
193 }
194 j := ji.(junk.Junk)
195 return j, nil
196}
197
198func getsomejunk(url string, args junk.GetArgs) (junk.Junk, error) {
199 client := http.DefaultClient
200 if args.Client != nil {
201 client = args.Client
202 }
203 req, err := http.NewRequest("GET", url, nil)
204 if err != nil {
205 return nil, err
206 }
207 if args.Accept != "" {
208 req.Header.Set("Accept", args.Accept)
209 }
210 if args.Agent != "" {
211 req.Header.Set("User-Agent", args.Agent)
212 }
213 if args.Fixup != nil {
214 err = args.Fixup(req)
215 if err != nil {
216 return nil, err
217 }
218 }
219 if args.Timeout != 0 {
220 ctx, cancel := context.WithTimeout(context.Background(), args.Timeout)
221 defer cancel()
222 req = req.WithContext(ctx)
223 }
224 resp, err := client.Do(req)
225 if err != nil {
226 return nil, err
227 }
228 defer resp.Body.Close()
229
230 switch resp.StatusCode {
231 case 200:
232 case 201:
233 case 202:
234 default:
235 return nil, fmt.Errorf("http get status: %d", resp.StatusCode)
236 }
237 ct := resp.Header.Get("Content-Type")
238 if args.Accept != "application/jrd+json" && !friendorfoe(ct) {
239 return nil, fmt.Errorf("incompatible content type %s", ct)
240 }
241 var r io.Reader = resp.Body
242 if args.Limit > 0 {
243 r = io.LimitReader(r, args.Limit)
244 }
245 return junk.Read(r)
246}
247
248func fetchsome(url string) ([]byte, error) {
249 req, err := http.NewRequest("GET", url, nil)
250 if err != nil {
251 ilog.Printf("error fetching %s: %s", url, err)
252 return nil, err
253 }
254 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
255 ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
256 defer cancel()
257 req = req.WithContext(ctx)
258 resp, err := honkClient.Do(req)
259 if err != nil {
260 ilog.Printf("error fetching %s: %s", url, err)
261 return nil, err
262 }
263 defer resp.Body.Close()
264 switch resp.StatusCode {
265 case 200:
266 case 201:
267 case 202:
268 default:
269 return nil, fmt.Errorf("http get not 200: %d %s", resp.StatusCode, url)
270 }
271 var buf bytes.Buffer
272 limiter := io.LimitReader(resp.Body, 14*1024*1024)
273 io.Copy(&buf, limiter)
274 return buf.Bytes(), nil
275}
276
277func savedonk(url string, name, desc, media string, localize bool) *Donk {
278 if url == "" {
279 return nil
280 }
281 if donk := finddonk(url); donk != nil {
282 return donk
283 }
284 ilog.Printf("saving donk: %s", url)
285 data := []byte{}
286 if localize {
287 fn := func() (interface{}, error) {
288 return fetchsome(url)
289 }
290 ii, err := flightdeck.Call(url, fn)
291 if err != nil {
292 ilog.Printf("error fetching donk: %s", err)
293 localize = false
294 goto saveit
295 }
296 data = ii.([]byte)
297
298 if len(data) == 10*1024*1024 {
299 ilog.Printf("truncation likely")
300 }
301 if strings.HasPrefix(media, "image") {
302 img, err := shrinkit(data)
303 if err != nil {
304 ilog.Printf("unable to decode image: %s", err)
305 localize = false
306 data = []byte{}
307 goto saveit
308 }
309 data = img.Data
310 media = "image/" + img.Format
311 } else if media == "application/pdf" {
312 if len(data) > 1000000 {
313 ilog.Printf("not saving large pdf")
314 localize = false
315 data = []byte{}
316 }
317 } else if len(data) > 100000 {
318 ilog.Printf("not saving large attachment")
319 localize = false
320 data = []byte{}
321 }
322 }
323saveit:
324 fileid, err := savefile(name, desc, url, media, localize, data)
325 if err != nil {
326 elog.Printf("error saving file %s: %s", url, err)
327 return nil
328 }
329 donk := new(Donk)
330 donk.FileID = fileid
331 return donk
332}
333
334func iszonked(userid int64, xid string) bool {
335 var id int64
336 row := stmtFindZonk.QueryRow(userid, xid)
337 err := row.Scan(&id)
338 if err == nil {
339 return true
340 }
341 if err != sql.ErrNoRows {
342 ilog.Printf("error querying zonk: %s", err)
343 }
344 return false
345}
346
347func needxonk(user *WhatAbout, x *Honk) bool {
348 if rejectxonk(x) {
349 return false
350 }
351 return needxonkid(user, x.XID)
352}
353func needbonkid(user *WhatAbout, xid string) bool {
354 return needxonkidX(user, xid, true)
355}
356func needxonkid(user *WhatAbout, xid string) bool {
357 return needxonkidX(user, xid, false)
358}
359func needxonkidX(user *WhatAbout, xid string, isannounce bool) bool {
360 if !strings.HasPrefix(xid, "https://") {
361 return false
362 }
363 if strings.HasPrefix(xid, user.URL+"/") {
364 return false
365 }
366 if rejectorigin(user.ID, xid, isannounce) {
367 ilog.Printf("rejecting origin: %s", xid)
368 return false
369 }
370 if iszonked(user.ID, xid) {
371 ilog.Printf("already zonked: %s", xid)
372 return false
373 }
374 var id int64
375 row := stmtFindXonk.QueryRow(user.ID, xid)
376 err := row.Scan(&id)
377 if err == nil {
378 return false
379 }
380 if err != sql.ErrNoRows {
381 ilog.Printf("error querying xonk: %s", err)
382 }
383 return true
384}
385
386func eradicatexonk(userid int64, xid string) {
387 xonk := getxonk(userid, xid)
388 if xonk != nil {
389 deletehonk(xonk.ID)
390 _, err := stmtSaveZonker.Exec(userid, xid, "zonk")
391 if err != nil {
392 elog.Printf("error eradicating: %s", err)
393 }
394 }
395}
396
397func savexonk(x *Honk) {
398 ilog.Printf("saving xonk: %s", x.XID)
399 go handles(x.Honker)
400 go handles(x.Oonker)
401 savehonk(x)
402}
403
404type Box struct {
405 In string
406 Out string
407 Shared string
408}
409
410var boxofboxes = gencache.New(gencache.Options[string, *Box]{Fill: func(ident string) (*Box, bool) {
411 var info string
412 row := stmtGetXonker.QueryRow(ident, "boxes")
413 err := row.Scan(&info)
414 if err != nil {
415 dlog.Printf("need to get boxes for %s", ident)
416 var j junk.Junk
417 j, err = GetJunk(readyLuserOne, ident)
418 if err != nil {
419 dlog.Printf("error getting boxes: %s", err)
420 return nil, false
421 }
422 allinjest(originate(ident), j)
423 row = stmtGetXonker.QueryRow(ident, "boxes")
424 err = row.Scan(&info)
425 }
426 if err == nil {
427 m := strings.Split(info, " ")
428 b := &Box{In: m[0], Out: m[1], Shared: m[2]}
429 return b, true
430 }
431 return nil, false
432}})
433
434var gettergate = gate.NewLimiter(1)
435
436func getsomemore(user *WhatAbout, page string) {
437 time.Sleep(5 * time.Second)
438 gettergate.Start()
439 defer gettergate.Finish()
440 gimmexonks(user, page)
441}
442
443func gimmexonks(user *WhatAbout, outbox string) {
444 dlog.Printf("getting outbox: %s", outbox)
445 j, err := GetJunk(user.ID, outbox)
446 if err != nil {
447 ilog.Printf("error getting outbox: %s", err)
448 return
449 }
450 t, _ := j.GetString("type")
451 origin := originate(outbox)
452 if t == "OrderedCollection" || t == "CollectionPage" {
453 items, _ := j.GetArray("orderedItems")
454 if items == nil {
455 items, _ = j.GetArray("items")
456 }
457 if items == nil {
458 obj, ok := j.GetMap("first")
459 if ok {
460 items, _ = obj.GetArray("orderedItems")
461 } else {
462 page1, ok := j.GetString("first")
463 if ok {
464 j, err = GetJunk(user.ID, page1)
465 if err != nil {
466 ilog.Printf("error getting page1: %s", err)
467 return
468 }
469 items, _ = j.GetArray("orderedItems")
470 }
471 }
472 }
473 if len(items) > 20 {
474 items = items[0:20]
475 }
476 for i, j := 0, len(items)-1; i < j; i, j = i+1, j-1 {
477 items[i], items[j] = items[j], items[i]
478 }
479 for _, item := range items {
480 obj, ok := item.(junk.Junk)
481 if ok {
482 xonksaver(user, obj, origin)
483 continue
484 }
485 xid, ok := item.(string)
486 if ok {
487 if !needxonkid(user, xid) {
488 continue
489 }
490 obj, err = GetJunk(user.ID, xid)
491 if err != nil {
492 ilog.Printf("error getting item: %s", err)
493 continue
494 }
495 xonksaver(user, obj, originate(xid))
496 }
497 }
498 }
499}
500
501func newphone(a []string, obj junk.Junk) []string {
502 for _, addr := range []string{"to", "cc", "attributedTo"} {
503 who, _ := obj.GetString(addr)
504 if who != "" {
505 a = append(a, who)
506 }
507 whos, _ := obj.GetArray(addr)
508 for _, w := range whos {
509 who, _ := w.(string)
510 if who != "" {
511 a = append(a, who)
512 }
513 }
514 }
515 return a
516}
517
518func extractattrto(obj junk.Junk) string {
519 arr := oneforall(obj, "attributedTo")
520 for _, a := range arr {
521 s, ok := a.(string)
522 if ok {
523 return s
524 }
525 o, ok := a.(junk.Junk)
526 if ok {
527 t, _ := o.GetString("type")
528 id, _ := o.GetString("id")
529 if t == "Person" || t == "" {
530 return id
531 }
532 }
533 }
534 return ""
535}
536
537func oneforall(obj junk.Junk, key string) []interface{} {
538 if val, ok := obj.GetMap(key); ok {
539 return []interface{}{val}
540 }
541 if str, ok := obj.GetString(key); ok {
542 return []interface{}{str}
543 }
544 arr, _ := obj.GetArray(key)
545 return arr
546}
547
548func firstofmany(obj junk.Junk, key string) string {
549 if val, _ := obj.GetString(key); val != "" {
550 return val
551 }
552 if arr, _ := obj.GetArray(key); len(arr) > 0 {
553 val, ok := arr[0].(string)
554 if ok {
555 return val
556 }
557 }
558 return ""
559}
560
561var re_mast0link = regexp.MustCompile(`https://[[:alnum:].]+/users/[[:alnum:]]+/statuses/[[:digit:]]+`)
562var re_masto1ink = regexp.MustCompile(`https://([[:alnum:].]+)/@([[:alnum:]]+)(@[[:alnum:].]+)?/([[:digit:]]+)`)
563var re_misslink = regexp.MustCompile(`https://[[:alnum:].]+/notes/[[:alnum:]]+`)
564var re_honklink = regexp.MustCompile(`https://[[:alnum:].]+/u/[[:alnum:]]+/h/[[:alnum:]]+`)
565var re_r0malink = regexp.MustCompile(`https://[[:alnum:].]+/objects/[[:alnum:]-]+`)
566var re_roma1ink = regexp.MustCompile(`https://[[:alnum:].]+/notice/[[:alnum:]]+`)
567var re_qtlinks = regexp.MustCompile(`>https://[^\s<]+<`)
568
569func xonksaver(user *WhatAbout, item junk.Junk, origin string) *Honk {
570 depth := 0
571 maxdepth := 10
572 currenttid := ""
573 goingup := 0
574 var xonkxonkfn func(junk.Junk, string, bool, string) *Honk
575
576 qutify := func(user *WhatAbout, qurl, content string) string {
577 if depth >= maxdepth {
578 ilog.Printf("in too deep")
579 return content
580 }
581 // well this is gross
582 malcontent := strings.ReplaceAll(content, `</span><span class="ellipsis">`, "")
583 malcontent = strings.ReplaceAll(malcontent, `</span><span class="invisible">`, "")
584 mlinks := re_qtlinks.FindAllString(malcontent, -1)
585 if qurl != "" {
586 mlinks = append(mlinks, ">"+qurl+"<")
587 }
588 mlinks = oneofakind(mlinks)
589 for _, m := range mlinks {
590 tryit := false
591 m = m[1 : len(m)-1]
592 if re_mast0link.MatchString(m) || re_misslink.MatchString(m) ||
593 re_honklink.MatchString(m) || re_r0malink.MatchString(m) ||
594 re_roma1ink.MatchString(m) {
595 tryit = true
596 } else if re_masto1ink.MatchString(m) {
597 tryit = true
598 }
599 if tryit {
600 var prefix string
601 if m == qurl {
602 prefix += fmt.Sprintf("<p><a href=\"%s\">%s</a>", m, m)
603 }
604 var final string
605 if x := getxonk(user.ID, m); x != nil {
606 content = fmt.Sprintf("%s%s<blockquote>%s</blockquote>", content, prefix, x.Noise)
607 } else if j, err := GetJunkTimeout(user.ID, m, fastTimeout*time.Second, &final); err == nil {
608 q, ok := j.GetString("content")
609 if ok {
610 content = fmt.Sprintf("%s%s<blockquote>%s</blockquote>", content, prefix, q)
611 }
612 prevdepth := depth
613 depth = maxdepth
614 xonkxonkfn(j, originate(final), false, "")
615 depth = prevdepth
616 }
617 }
618 }
619 return content
620 }
621
622 saveonemore := func(xid string) {
623 dlog.Printf("getting onemore: %s", xid)
624 if depth >= maxdepth {
625 ilog.Printf("in too deep")
626 return
627 }
628 obj, err := GetJunkHardMode(user.ID, xid)
629 if err != nil {
630 ilog.Printf("error getting onemore: %s: %s", xid, err)
631 return
632 }
633 xonkxonkfn(obj, originate(xid), false, "")
634 }
635
636 xonkxonkfn = func(item junk.Junk, origin string, isUpdate bool, bonker string) *Honk {
637 id, _ := item.GetString("id")
638 what := firstofmany(item, "type")
639 dt, ok := item.GetString("published")
640 if !ok {
641 dt = time.Now().Format(time.RFC3339)
642 }
643 if depth >= maxdepth+5 {
644 ilog.Printf("went too deep in xonkxonk")
645 return nil
646 }
647 depth++
648 defer func() { depth-- }()
649
650 var err error
651 var xid, rid, url, convoy string
652 var replies []string
653 var obj junk.Junk
654 waspage := false
655 preferorig := false
656 switch what {
657 case "Delete":
658 obj, ok = item.GetMap("object")
659 if ok {
660 xid, _ = obj.GetString("id")
661 } else {
662 xid, _ = item.GetString("object")
663 }
664 if xid == "" {
665 return nil
666 }
667 if originate(xid) != origin {
668 ilog.Printf("forged delete: %s", xid)
669 return nil
670 }
671 ilog.Printf("eradicating %s", xid)
672 eradicatexonk(user.ID, xid)
673 return nil
674 case "Remove":
675 xid, _ = item.GetString("object")
676 targ, _ := obj.GetString("target")
677 ilog.Printf("remove %s from %s", obj, targ)
678 return nil
679 case "Tombstone":
680 xid, _ = item.GetString("id")
681 if xid == "" {
682 return nil
683 }
684 if originate(xid) != origin {
685 ilog.Printf("forged delete: %s", xid)
686 return nil
687 }
688 ilog.Printf("eradicating %s", xid)
689 eradicatexonk(user.ID, xid)
690 return nil
691 case "Announce":
692 obj, ok = item.GetMap("object")
693 if ok {
694 // peek ahead some
695 what := firstofmany(obj, "type")
696 if what == "Create" || what == "Update" {
697 if what == "Update" {
698 isUpdate = true
699 }
700 inner, ok := obj.GetMap("object")
701 if ok {
702 obj = inner
703 } else {
704 xid, _ = obj.GetString("object")
705 }
706 }
707 if xid == "" {
708 xid, _ = obj.GetString("id")
709 }
710 } else {
711 xid, _ = item.GetString("object")
712 }
713 if !isUpdate && !needbonkid(user, xid) {
714 return nil
715 }
716 bonker, _ = item.GetString("actor")
717 if originate(bonker) != origin {
718 ilog.Printf("out of bounds actor in bonk: %s not from %s", bonker, origin)
719 item.Write(ilog.Writer())
720 return nil
721 }
722 origin = originate(xid)
723 if ok && originate(id) == origin {
724 dlog.Printf("using object in announce for %s", xid)
725 } else {
726 dlog.Printf("getting bonk: %s", xid)
727 obj, err = GetJunkHardMode(user.ID, xid)
728 if err != nil {
729 ilog.Printf("error getting bonk: %s: %s", xid, err)
730 return nil
731 }
732 }
733 return xonkxonkfn(obj, origin, isUpdate, bonker)
734 case "Update":
735 isUpdate = true
736 fallthrough
737 case "Create":
738 obj, ok = item.GetMap("object")
739 if !ok {
740 xid, _ = item.GetString("object")
741 dlog.Printf("getting created honk: %s", xid)
742 if originate(xid) != origin {
743 ilog.Printf("out of bounds object in create: %s not from %s", xid, origin)
744 return nil
745 }
746 obj, err = GetJunkHardMode(user.ID, xid)
747 if err != nil {
748 ilog.Printf("error getting creation: %s", err)
749 }
750 }
751 if obj == nil {
752 ilog.Printf("no object for creation %s", id)
753 return nil
754 }
755 return xonkxonkfn(obj, origin, isUpdate, bonker)
756 case "Read":
757 xid, ok = item.GetString("object")
758 if ok {
759 if !needxonkid(user, xid) {
760 dlog.Printf("don't need read obj: %s", xid)
761 return nil
762 }
763 obj, err = GetJunkHardMode(user.ID, xid)
764 if err != nil {
765 ilog.Printf("error getting read: %s", err)
766 return nil
767 }
768 return xonkxonkfn(obj, originate(xid), false, "")
769 }
770 return nil
771 case "Add":
772 xid, ok = item.GetString("object")
773 if ok {
774 // check target...
775 if !needxonkid(user, xid) {
776 dlog.Printf("don't need added obj: %s", xid)
777 return nil
778 }
779 obj, err = GetJunkHardMode(user.ID, xid)
780 if err != nil {
781 ilog.Printf("error getting add: %s", err)
782 return nil
783 }
784 return xonkxonkfn(obj, originate(xid), false, "")
785 }
786 return nil
787 case "Move":
788 obj = item
789 what = "move"
790 case "Page":
791 waspage = true
792 fallthrough
793 case "Audio":
794 fallthrough
795 case "Image":
796 if what == "Image" {
797 preferorig = true
798 }
799 fallthrough
800 case "Video":
801 fallthrough
802 case "Question":
803 fallthrough
804 case "Note":
805 fallthrough
806 case "Article":
807 obj = item
808 what = "honk"
809 case "Event":
810 obj = item
811 what = "event"
812 case "ChatMessage":
813 bonker = ""
814 obj = item
815 what = "chonk"
816 default:
817 ilog.Printf("unknown activity: %s", what)
818 dumpactivity(item)
819 return nil
820 }
821 if bonker != "" {
822 what = "bonk"
823 }
824
825 if obj != nil {
826 xid, _ = obj.GetString("id")
827 }
828
829 if xid == "" {
830 ilog.Printf("don't know what xid is")
831 item.Write(ilog.Writer())
832 return nil
833 }
834 if originate(xid) != origin {
835 if !develMode && origin != "" {
836 ilog.Printf("original sin: %s not from %s", xid, origin)
837 item.Write(ilog.Writer())
838 return nil
839 }
840 }
841
842 var xonk Honk
843 // early init
844 xonk.XID = xid
845 xonk.UserID = user.ID
846 xonk.Honker, _ = item.GetString("actor")
847 if xonk.Honker == "" {
848 xonk.Honker = extractattrto(item)
849 }
850 if originate(xonk.Honker) != origin {
851 ilog.Printf("out of bounds honker %s from %s", xonk.Honker, origin)
852 item.Write(ilog.Writer())
853 return nil
854 }
855 if obj != nil {
856 if xonk.Honker == "" {
857 xonk.Honker = extractattrto(obj)
858 }
859 if bonker != "" {
860 xonk.Honker, xonk.Oonker = bonker, xonk.Honker
861 }
862 if xonk.Oonker == xonk.Honker {
863 xonk.Oonker = ""
864 }
865 xonk.Audience = newphone(nil, obj)
866 }
867 xonk.Audience = append(xonk.Audience, xonk.Honker)
868 xonk.Audience = oneofakind(xonk.Audience)
869 for i, a := range xonk.Audience {
870 if a == tinyworld {
871 xonk.Audience[i] = thewholeworld
872 }
873 }
874 xonk.Public = loudandproud(xonk.Audience)
875
876 var mentions []Mention
877 if obj != nil {
878 ot := firstofmany(obj, "type")
879 url, _ = obj.GetString("url")
880 if dt2, ok := obj.GetString("published"); ok {
881 dt = dt2
882 }
883 content, _ := obj.GetString("content")
884 if !strings.HasPrefix(content, "<p>") {
885 content = "<p>" + content
886 }
887 precis, _ := obj.GetString("summary")
888 if name, ok := obj.GetString("name"); ok {
889 if precis != "" {
890 content = precis + "<p>" + content
891 }
892 precis = html.EscapeString(name)
893 }
894 if sens, _ := obj["sensitive"].(bool); sens && precis == "" {
895 precis = "unspecified horror"
896 }
897 if waspage {
898 content += fmt.Sprintf(`<p><a href="%s">%s</a>`, url, url)
899 url = xid
900 }
901 if user.Options.InlineQuotes {
902 qurl, _ := obj.GetString("quoteUrl")
903 content = qutify(user, qurl, content)
904 }
905 rid, ok = obj.GetString("inReplyTo")
906 if !ok {
907 if robj, ok := obj.GetMap("inReplyTo"); ok {
908 rid, _ = robj.GetString("id")
909 }
910 }
911 convoy, _ = obj.GetString("context")
912 if convoy == "" {
913 convoy, _ = obj.GetString("conversation")
914 }
915 if ot == "Question" {
916 if what == "honk" {
917 what = "qonk"
918 }
919 content += "<ul>"
920 ans, _ := obj.GetArray("oneOf")
921 for _, ai := range ans {
922 a, ok := ai.(junk.Junk)
923 if !ok {
924 continue
925 }
926 as, _ := a.GetString("name")
927 content += "<li>" + as
928 }
929 ans, _ = obj.GetArray("anyOf")
930 for _, ai := range ans {
931 a, ok := ai.(junk.Junk)
932 if !ok {
933 continue
934 }
935 as, _ := a.GetString("name")
936 content += "<li>" + as
937 }
938 content += "</ul>"
939 }
940 if ot == "Move" {
941 targ, _ := obj.GetString("target")
942 content += string(templates.Sprintf(`<p>Moved to <a href="%s">%s</a>`, targ, targ))
943 }
944 if len(content) > 90001 {
945 ilog.Printf("content too long. truncating")
946 content = content[:90001]
947 }
948
949 xonk.Noise = content
950 xonk.Precis = precis
951 if rejectxonk(&xonk) {
952 dlog.Printf("fast reject: %s", xid)
953 return nil
954 }
955
956 numatts := 0
957 procatt := func(att junk.Junk) {
958 at, _ := att.GetString("type")
959 mt, _ := att.GetString("mediaType")
960 if mt == "" {
961 mt = "image"
962 }
963 u, ok := att.GetString("url")
964 if !ok {
965 u, ok = att.GetString("href")
966 }
967 if !ok {
968 if ua, ok := att.GetArray("url"); ok && len(ua) > 0 {
969 u, ok = ua[0].(string)
970 if !ok {
971 if uu, ok := ua[0].(junk.Junk); ok {
972 u, _ = uu.GetString("href")
973 if mt == "" {
974 mt, _ = uu.GetString("mediaType")
975 }
976 }
977 }
978 } else if uu, ok := att.GetMap("url"); ok {
979 u, _ = uu.GetString("href")
980 if mt == "" {
981 mt, _ = uu.GetString("mediaType")
982 }
983 }
984 }
985 name, _ := att.GetString("name")
986 desc, _ := att.GetString("summary")
987 desc = html.UnescapeString(desc)
988 if desc == "" {
989 desc = name
990 }
991 localize := false
992 if at == "Document" || at == "Image" {
993 mt = strings.ToLower(mt)
994 dlog.Printf("attachment: %s %s", mt, u)
995 if mt == "text/plain" || mt == "application/pdf" ||
996 strings.HasPrefix(mt, "image") {
997 if numatts > 4 {
998 ilog.Printf("excessive attachment: %s", at)
999 } else {
1000 localize = true
1001 }
1002 }
1003 } else if at == "Link" {
1004 if waspage {
1005 xonk.Noise += fmt.Sprintf(`<p><a href="%s">%s</a>`, u, u)
1006 return
1007 }
1008 if name == "" {
1009 name = u
1010 }
1011 } else {
1012 ilog.Printf("unknown attachment: %s", at)
1013 }
1014 if skipMedia(&xonk) {
1015 localize = false
1016 }
1017 if preferorig && !localize {
1018 return
1019 }
1020 donk := savedonk(u, name, desc, mt, localize)
1021 if donk != nil {
1022 xonk.Donks = append(xonk.Donks, donk)
1023 }
1024 numatts++
1025 }
1026 if img, ok := obj.GetMap("image"); ok {
1027 procatt(img)
1028 }
1029 if preferorig {
1030 atts, _ := obj.GetArray("url")
1031 for _, atti := range atts {
1032 att, ok := atti.(junk.Junk)
1033 if !ok {
1034 ilog.Printf("attachment that wasn't map?")
1035 continue
1036 }
1037 procatt(att)
1038 }
1039 if numatts == 0 {
1040 preferorig = false
1041 }
1042 }
1043 if !preferorig {
1044 atts := oneforall(obj, "attachment")
1045 for _, atti := range atts {
1046 att, ok := atti.(junk.Junk)
1047 if !ok {
1048 ilog.Printf("attachment that wasn't map?")
1049 continue
1050 }
1051 procatt(att)
1052 }
1053 }
1054 proctag := func(tag junk.Junk) {
1055 tt, _ := tag.GetString("type")
1056 name, _ := tag.GetString("name")
1057 desc, _ := tag.GetString("summary")
1058 desc = html.UnescapeString(desc)
1059 if desc == "" {
1060 desc = name
1061 }
1062 if tt == "Emoji" {
1063 icon, _ := tag.GetMap("icon")
1064 mt, _ := icon.GetString("mediaType")
1065 if mt == "" {
1066 mt = "image/png"
1067 }
1068 u, _ := icon.GetString("url")
1069 donk := savedonk(u, name, desc, mt, true)
1070 if donk != nil {
1071 xonk.Donks = append(xonk.Donks, donk)
1072 }
1073 }
1074 if tt == "Hashtag" {
1075 if name == "" || name == "#" {
1076 // skip it
1077 } else {
1078 if name[0] != '#' {
1079 name = "#" + name
1080 }
1081 xonk.Onts = append(xonk.Onts, name)
1082 }
1083 }
1084 if tt == "Place" {
1085 p := new(Place)
1086 p.Name = name
1087 p.Latitude, _ = tag.GetNumber("latitude")
1088 p.Longitude, _ = tag.GetNumber("longitude")
1089 p.Url, _ = tag.GetString("url")
1090 xonk.Place = p
1091 }
1092 if tt == "Mention" {
1093 var m Mention
1094 m.Who, _ = tag.GetString("name")
1095 m.Where, _ = tag.GetString("href")
1096 mentions = append(mentions, m)
1097 }
1098 }
1099 tags := oneforall(obj, "tag")
1100 for _, tagi := range tags {
1101 tag, ok := tagi.(junk.Junk)
1102 if !ok {
1103 continue
1104 }
1105 proctag(tag)
1106 }
1107 if starttime, ok := obj.GetString("startTime"); ok {
1108 if start, err := time.Parse(time.RFC3339, starttime); err == nil {
1109 t := new(Time)
1110 t.StartTime = start
1111 endtime, _ := obj.GetString("endTime")
1112 t.EndTime, _ = time.Parse(time.RFC3339, endtime)
1113 dura, _ := obj.GetString("duration")
1114 if strings.HasPrefix(dura, "PT") {
1115 dura = strings.ToLower(dura[2:])
1116 d, _ := time.ParseDuration(dura)
1117 t.Duration = Duration(d)
1118 }
1119 xonk.Time = t
1120 }
1121 }
1122 if loca, ok := obj.GetMap("location"); ok {
1123 if tt, _ := loca.GetString("type"); tt == "Place" {
1124 p := new(Place)
1125 p.Name, _ = loca.GetString("name")
1126 p.Latitude, _ = loca.GetNumber("latitude")
1127 p.Longitude, _ = loca.GetNumber("longitude")
1128 p.Url, _ = loca.GetString("url")
1129 xonk.Place = p
1130 }
1131 }
1132
1133 xonk.Onts = oneofakind(xonk.Onts)
1134 replyobj, ok := obj.GetMap("replies")
1135 if ok {
1136 items, ok := replyobj.GetArray("items")
1137 if !ok {
1138 first, ok := replyobj.GetMap("first")
1139 if ok {
1140 items, _ = first.GetArray("items")
1141 }
1142 }
1143 for _, repl := range items {
1144 s, ok := repl.(string)
1145 if ok {
1146 replies = append(replies, s)
1147 }
1148 }
1149 }
1150
1151 }
1152
1153 if currenttid == "" {
1154 currenttid = convoy
1155 }
1156
1157 // init xonk
1158 xonk.What = what
1159 xonk.RID = rid
1160 xonk.Date, _ = time.Parse(time.RFC3339, dt)
1161 xonk.URL = url
1162 xonk.Format = "html"
1163 xonk.Convoy = convoy
1164 xonk.Mentions = mentions
1165 for _, m := range mentions {
1166 if m.Where == user.URL {
1167 xonk.Whofore = 1
1168 }
1169 }
1170 imaginate(&xonk)
1171
1172 if what == "chonk" {
1173 // undo damage above
1174 xonk.Noise = strings.TrimPrefix(xonk.Noise, "<p>")
1175 target := firstofmany(obj, "to")
1176 if target == user.URL {
1177 target = xonk.Honker
1178 }
1179 enc, _ := obj.GetString(chatKeyProp)
1180 if enc != "" {
1181 var dec string
1182 if pubkey, ok := getchatkey(xonk.Honker); ok {
1183 dec, err = decryptString(xonk.Noise, user.ChatSecKey, pubkey)
1184 if err != nil {
1185 ilog.Printf("failed to decrypt chonk")
1186 }
1187 }
1188 if err == nil {
1189 dlog.Printf("successful decrypt from %s", xonk.Honker)
1190 xonk.Noise = dec
1191 }
1192 }
1193 ch := Chonk{
1194 UserID: xonk.UserID,
1195 XID: xid,
1196 Who: xonk.Honker,
1197 Target: target,
1198 Date: xonk.Date,
1199 Noise: xonk.Noise,
1200 Format: xonk.Format,
1201 Donks: xonk.Donks,
1202 }
1203 savechonk(&ch)
1204 return nil
1205 }
1206
1207 if isUpdate {
1208 dlog.Printf("something has changed! %s", xonk.XID)
1209 prev := getxonk(user.ID, xonk.XID)
1210 if prev == nil {
1211 ilog.Printf("didn't find old version for update: %s", xonk.XID)
1212 isUpdate = false
1213 } else {
1214 xonk.ID = prev.ID
1215 updatehonk(&xonk)
1216 }
1217 }
1218 if !isUpdate && needxonk(user, &xonk) {
1219 if rid != "" && xonk.Public {
1220 if needxonkid(user, rid) {
1221 goingup++
1222 saveonemore(rid)
1223 goingup--
1224 }
1225 if convoy == "" {
1226 xx := getxonk(user.ID, rid)
1227 if xx != nil {
1228 convoy = xx.Convoy
1229 }
1230 }
1231 }
1232 if convoy == "" {
1233 convoy = currenttid
1234 }
1235 if convoy == "" {
1236 convoy = xonk.XID
1237 currenttid = convoy
1238 }
1239 xonk.Convoy = convoy
1240 savexonk(&xonk)
1241 }
1242 if goingup == 0 {
1243 for _, replid := range replies {
1244 if needxonkid(user, replid) {
1245 dlog.Printf("missing a reply: %s", replid)
1246 saveonemore(replid)
1247 }
1248 }
1249 }
1250 return &xonk
1251 }
1252
1253 return xonkxonkfn(item, origin, false, "")
1254}
1255
1256func dumpactivity(item junk.Junk) {
1257 fd, err := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
1258 if err != nil {
1259 elog.Printf("error opening inbox! %s", err)
1260 return
1261 }
1262 defer fd.Close()
1263 item.Write(fd)
1264 io.WriteString(fd, "\n")
1265}
1266
1267func rubadubdub(user *WhatAbout, req junk.Junk) {
1268 actor, _ := req.GetString("actor")
1269 j := junk.New()
1270 j["@context"] = itiswhatitis
1271 j["id"] = user.URL + "/dub/" + xfiltrate()
1272 j["type"] = "Accept"
1273 j["actor"] = user.URL
1274 j["to"] = actor
1275 j["published"] = time.Now().UTC().Format(time.RFC3339)
1276 j["object"] = req
1277
1278 deliverate(user.ID, actor, j.ToBytes())
1279}
1280
1281func itakeitallback(user *WhatAbout, xid string, owner string, folxid string) {
1282 j := junk.New()
1283 j["@context"] = itiswhatitis
1284 j["id"] = user.URL + "/unsub/" + folxid
1285 j["type"] = "Undo"
1286 j["actor"] = user.URL
1287 j["to"] = owner
1288 f := junk.New()
1289 f["id"] = user.URL + "/sub/" + folxid
1290 f["type"] = "Follow"
1291 f["actor"] = user.URL
1292 f["to"] = owner
1293 f["object"] = xid
1294 j["object"] = f
1295 j["published"] = time.Now().UTC().Format(time.RFC3339)
1296
1297 deliverate(user.ID, owner, j.ToBytes())
1298}
1299
1300func subsub(user *WhatAbout, xid string, owner string, folxid string) {
1301 if xid == "" {
1302 ilog.Printf("can't subscribe to empty")
1303 return
1304 }
1305 j := junk.New()
1306 j["@context"] = itiswhatitis
1307 j["id"] = user.URL + "/sub/" + folxid
1308 j["type"] = "Follow"
1309 j["actor"] = user.URL
1310 j["to"] = owner
1311 j["object"] = xid
1312 j["published"] = time.Now().UTC().Format(time.RFC3339)
1313
1314 deliverate(user.ID, owner, j.ToBytes())
1315}
1316
1317func activatedonks(donks []*Donk) []junk.Junk {
1318 var atts []junk.Junk
1319 for _, d := range donks {
1320 if re_emus.MatchString(d.Name) {
1321 continue
1322 }
1323 jd := junk.New()
1324 jd["mediaType"] = d.Media
1325 jd["name"] = d.Name
1326 jd["summary"] = html.EscapeString(d.Desc)
1327 jd["type"] = "Document"
1328 jd["url"] = d.URL
1329 atts = append(atts, jd)
1330 }
1331 return atts
1332}
1333
1334// returns activity, object
1335func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
1336 dt := h.Date.Format(time.RFC3339)
1337 var jo junk.Junk
1338 j := junk.New()
1339 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
1340 j["actor"] = user.URL
1341 j["published"] = dt
1342 if h.Public {
1343 h.Audience = append(h.Audience, user.URL+"/followers")
1344 }
1345 j["to"] = h.Audience[0]
1346 if len(h.Audience) > 1 {
1347 j["cc"] = h.Audience[1:]
1348 }
1349
1350 switch h.What {
1351 case "update":
1352 fallthrough
1353 case "event":
1354 fallthrough
1355 case "honk":
1356 j["type"] = "Create"
1357 jo = junk.New()
1358 jo["id"] = h.XID
1359 jo["type"] = "Note"
1360 if h.What == "event" {
1361 jo["type"] = "Event"
1362 }
1363 if h.What == "update" {
1364 j["type"] = "Update"
1365 jo["updated"] = dt
1366 }
1367 jo["published"] = dt
1368 jo["url"] = h.XID
1369 jo["attributedTo"] = user.URL
1370 if h.RID != "" {
1371 jo["inReplyTo"] = h.RID
1372 }
1373 if h.Convoy != "" {
1374 jo["context"] = h.Convoy
1375 jo["conversation"] = h.Convoy
1376 }
1377 jo["to"] = h.Audience[0]
1378 if len(h.Audience) > 1 {
1379 jo["cc"] = h.Audience[1:]
1380 }
1381 if !h.Public {
1382 jo["directMessage"] = true
1383 }
1384 translate(h)
1385 redoimages(h)
1386 if h.Precis != "" {
1387 jo["sensitive"] = true
1388 }
1389
1390 var replies []string
1391 for _, reply := range h.Replies {
1392 replies = append(replies, reply.XID)
1393 }
1394 if len(replies) > 0 {
1395 jr := junk.New()
1396 jr["type"] = "Collection"
1397 jr["totalItems"] = len(replies)
1398 jr["items"] = replies
1399 jo["replies"] = jr
1400 }
1401
1402 var tags []junk.Junk
1403 for _, m := range h.Mentions {
1404 t := junk.New()
1405 t["type"] = "Mention"
1406 t["name"] = m.Who
1407 t["href"] = m.Where
1408 tags = append(tags, t)
1409 }
1410 for _, o := range h.Onts {
1411 t := junk.New()
1412 t["type"] = "Hashtag"
1413 o = strings.ToLower(o)
1414 t["href"] = serverURL("/o/%s", o[1:])
1415 t["name"] = o
1416 tags = append(tags, t)
1417 }
1418 for _, e := range herdofemus(h.Noise) {
1419 t := junk.New()
1420 t["id"] = e.ID
1421 t["type"] = "Emoji"
1422 t["name"] = e.Name
1423 i := junk.New()
1424 i["type"] = "Image"
1425 i["mediaType"] = e.Type
1426 i["url"] = e.ID
1427 t["icon"] = i
1428 tags = append(tags, t)
1429 }
1430 for _, e := range fixupflags(h) {
1431 t := junk.New()
1432 t["id"] = e.ID
1433 t["type"] = "Emoji"
1434 t["name"] = e.Name
1435 i := junk.New()
1436 i["type"] = "Image"
1437 i["mediaType"] = "image/png"
1438 i["url"] = e.ID
1439 t["icon"] = i
1440 tags = append(tags, t)
1441 }
1442 if len(tags) > 0 {
1443 jo["tag"] = tags
1444 }
1445 if p := h.Place; p != nil {
1446 t := junk.New()
1447 t["type"] = "Place"
1448 if p.Name != "" {
1449 t["name"] = p.Name
1450 }
1451 if p.Latitude != 0 {
1452 t["latitude"] = p.Latitude
1453 }
1454 if p.Longitude != 0 {
1455 t["longitude"] = p.Longitude
1456 }
1457 if p.Url != "" {
1458 t["url"] = p.Url
1459 }
1460 jo["location"] = t
1461 }
1462 if t := h.Time; t != nil {
1463 jo["startTime"] = t.StartTime.Format(time.RFC3339)
1464 if t.Duration != 0 {
1465 jo["duration"] = "PT" + strings.ToUpper(t.Duration.String())
1466 }
1467 }
1468 atts := activatedonks(h.Donks)
1469 if h.Link != "" {
1470 jo["type"] = "Page"
1471 jl := junk.New()
1472 jl["type"] = "Link"
1473 jl["href"] = h.Link
1474 atts = append(atts, jl)
1475 }
1476 if len(atts) > 0 {
1477 jo["attachment"] = atts
1478 }
1479 if h.LegalName != "" {
1480 jo["name"] = h.LegalName
1481 }
1482 if h.Precis != "" {
1483 jo["summary"] = h.Precis
1484 }
1485 jo["content"] = h.Noise
1486 j["object"] = jo
1487 case "bonk":
1488 j["type"] = "Announce"
1489 if h.Convoy != "" {
1490 j["context"] = h.Convoy
1491 }
1492 j["object"] = h.XID
1493 case "unbonk":
1494 b := junk.New()
1495 b["id"] = user.URL + "/" + "bonk" + "/" + shortxid(h.XID)
1496 b["type"] = "Announce"
1497 b["actor"] = user.URL
1498 if h.Convoy != "" {
1499 b["context"] = h.Convoy
1500 }
1501 b["object"] = h.XID
1502 j["type"] = "Undo"
1503 j["object"] = b
1504 case "zonk":
1505 j["type"] = "Delete"
1506 j["object"] = h.XID
1507 case "ack":
1508 j["type"] = "Read"
1509 j["object"] = h.XID
1510 if h.Convoy != "" {
1511 j["context"] = h.Convoy
1512 }
1513 case "react":
1514 j["type"] = "EmojiReact"
1515 j["object"] = h.XID
1516 if h.Convoy != "" {
1517 j["context"] = h.Convoy
1518 }
1519 j["content"] = h.Noise
1520 case "deack":
1521 b := junk.New()
1522 b["id"] = user.URL + "/" + "ack" + "/" + shortxid(h.XID)
1523 b["type"] = "Read"
1524 b["actor"] = user.URL
1525 b["object"] = h.XID
1526 if h.Convoy != "" {
1527 b["context"] = h.Convoy
1528 }
1529 j["type"] = "Undo"
1530 j["object"] = b
1531 }
1532
1533 return j, jo
1534}
1535
1536var oldjonks = gencache.New(gencache.Options[string, []byte]{Fill: func(xid string) ([]byte, bool) {
1537 row := stmtAnyXonk.QueryRow(xid)
1538 honk := scanhonk(row)
1539 if honk == nil || !honk.Public {
1540 return nil, true
1541 }
1542 user, _ := butwhatabout(honk.Username)
1543 rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1544 reversehonks(rawhonks)
1545 for _, h := range rawhonks {
1546 if h.RID == honk.XID && h.Public && (h.Whofore == 2 || h.IsAcked()) {
1547 honk.Replies = append(honk.Replies, h)
1548 }
1549 }
1550 donksforhonks([]*Honk{honk})
1551 _, j := jonkjonk(user, honk)
1552 if j == nil {
1553 elog.Fatalf("what just happened? %v", honk)
1554 }
1555 j["@context"] = itiswhatitis
1556
1557 return j.ToBytes(), true
1558}, Limit: 128})
1559
1560func gimmejonk(xid string) ([]byte, bool) {
1561 j, ok := oldjonks.Get(xid)
1562 return j, ok
1563}
1564
1565func boxuprcpts(user *WhatAbout, addresses []string, useshared bool) map[string]bool {
1566 rcpts := make(map[string]bool)
1567 for _, a := range addresses {
1568 if a == "" || a == thewholeworld || a == user.URL || strings.HasSuffix(a, "/followers") {
1569 continue
1570 }
1571 if a[0] == '%' {
1572 rcpts[a] = true
1573 continue
1574 }
1575 box, ok := boxofboxes.Get(a)
1576 if ok && useshared && box.Shared != "" {
1577 rcpts["%"+box.Shared] = true
1578 } else {
1579 rcpts[a] = true
1580 }
1581 }
1582 return rcpts
1583}
1584
1585func chonkifymsg(user *WhatAbout, rcpt string, ch *Chonk) []byte {
1586 dt := ch.Date.Format(time.RFC3339)
1587 aud := []string{ch.Target}
1588
1589 jo := junk.New()
1590 jo["id"] = ch.XID
1591 jo["type"] = "ChatMessage"
1592 jo["published"] = dt
1593 jo["attributedTo"] = user.URL
1594 jo["to"] = aud
1595 content := string(ch.HTML)
1596 if user.ChatSecKey.key != nil {
1597 if pubkey, ok := getchatkey(rcpt); ok {
1598 var err error
1599 content, err = encryptString(content, user.ChatSecKey, pubkey)
1600 if err != nil {
1601 ilog.Printf("failure encrypting chonk: %s", err)
1602 }
1603 jo[chatKeyProp] = user.Options.ChatPubKey
1604 }
1605 }
1606 jo["content"] = content
1607
1608 atts := activatedonks(ch.Donks)
1609 if len(atts) > 0 {
1610 jo["attachment"] = atts
1611 }
1612 var tags []junk.Junk
1613 for _, e := range herdofemus(ch.Noise) {
1614 t := junk.New()
1615 t["id"] = e.ID
1616 t["type"] = "Emoji"
1617 t["name"] = e.Name
1618 i := junk.New()
1619 i["type"] = "Image"
1620 i["mediaType"] = e.Type
1621 i["url"] = e.ID
1622 t["icon"] = i
1623 tags = append(tags, t)
1624 }
1625 if len(tags) > 0 {
1626 jo["tag"] = tags
1627 }
1628
1629 j := junk.New()
1630 j["@context"] = itiswhatitis
1631 j["id"] = user.URL + "/" + "honk" + "/" + shortxid(ch.XID)
1632 j["type"] = "Create"
1633 j["actor"] = user.URL
1634 j["published"] = dt
1635 j["to"] = aud
1636 j["object"] = jo
1637
1638 return j.ToBytes()
1639}
1640
1641func sendchonk(user *WhatAbout, ch *Chonk) {
1642 rcpts := make(map[string]bool)
1643 rcpts[ch.Target] = true
1644 for a := range rcpts {
1645 msg := chonkifymsg(user, a, ch)
1646 go deliverate(user.ID, a, msg)
1647 }
1648}
1649
1650func honkworldwide(user *WhatAbout, honk *Honk) {
1651 jonk, _ := jonkjonk(user, honk)
1652 jonk["@context"] = itiswhatitis
1653 msg := jonk.ToBytes()
1654
1655 rcpts := boxuprcpts(user, honk.Audience, honk.Public)
1656
1657 if honk.Public {
1658 for _, h := range getdubs(user.ID) {
1659 if h.XID == user.URL {
1660 continue
1661 }
1662 box, ok := boxofboxes.Get(h.XID)
1663 if ok && box.Shared != "" {
1664 rcpts["%"+box.Shared] = true
1665 } else {
1666 rcpts[h.XID] = true
1667 }
1668 }
1669 for _, f := range getbacktracks(honk.XID) {
1670 if f[0] == '%' {
1671 rcpts[f] = true
1672 } else {
1673 box, ok := boxofboxes.Get(f)
1674 if ok && box.Shared != "" {
1675 rcpts["%"+box.Shared] = true
1676 } else {
1677 rcpts[f] = true
1678 }
1679 }
1680 }
1681 }
1682 for a := range rcpts {
1683 go deliverate(user.ID, a, msg)
1684 }
1685 if honk.Public && len(honk.Onts) > 0 {
1686 collectiveaction(honk)
1687 }
1688}
1689
1690func collectiveaction(honk *Honk) {
1691 user := getserveruser()
1692 for _, ont := range honk.Onts {
1693 dubs := getnameddubs(readyLuserOne, ont)
1694 if len(dubs) == 0 {
1695 continue
1696 }
1697 j := junk.New()
1698 j["@context"] = itiswhatitis
1699 j["type"] = "Add"
1700 j["id"] = user.URL + "/add/" + shortxid(ont+honk.XID)
1701 j["actor"] = user.URL
1702 j["object"] = honk.XID
1703 j["target"] = serverURL("/o/%s", ont[1:])
1704 rcpts := make(map[string]bool)
1705 for _, dub := range dubs {
1706 box, ok := boxofboxes.Get(dub.XID)
1707 if ok && box.Shared != "" {
1708 rcpts["%"+box.Shared] = true
1709 } else {
1710 rcpts[dub.XID] = true
1711 }
1712 }
1713 msg := j.ToBytes()
1714 for a := range rcpts {
1715 go deliverate(user.ID, a, msg)
1716 }
1717 }
1718}
1719
1720func junkuser(user *WhatAbout) junk.Junk {
1721 j := junk.New()
1722 j["@context"] = []string{itiswhatitis, papersplease}
1723 j["id"] = user.URL
1724 j["inbox"] = user.URL + "/inbox"
1725 j["outbox"] = user.URL + "/outbox"
1726 j["name"] = user.Display
1727 j["preferredUsername"] = user.Name
1728 j["summary"] = user.HTAbout
1729 var tags []junk.Junk
1730 for _, o := range user.Onts {
1731 t := junk.New()
1732 t["type"] = "Hashtag"
1733 o = strings.ToLower(o)
1734 t["href"] = serverURL("/o/%s", o[1:])
1735 t["name"] = o
1736 tags = append(tags, t)
1737 }
1738 if len(tags) > 0 {
1739 j["tag"] = tags
1740 }
1741
1742 if user.ID > 0 {
1743 j["type"] = "Person"
1744 j["url"] = user.URL
1745 j["followers"] = user.URL + "/followers"
1746 j["following"] = user.URL + "/following"
1747 a := junk.New()
1748 a["type"] = "Image"
1749 a["mediaType"] = "image/png"
1750 a["url"] = avatarURL(user)
1751 j["icon"] = a
1752 if ban := user.Options.Banner; ban != "" {
1753 a := junk.New()
1754 a["type"] = "Image"
1755 a["mediaType"] = "image/jpg"
1756 a["url"] = ban
1757 j["image"] = a
1758 }
1759 } else {
1760 j["type"] = "Service"
1761 }
1762 k := junk.New()
1763 k["id"] = user.URL + "#key"
1764 k["owner"] = user.URL
1765 k["publicKeyPem"] = user.Key
1766 j["publicKey"] = k
1767 j[chatKeyProp] = user.Options.ChatPubKey
1768
1769 return j
1770}
1771
1772var oldjonkers = gencache.New(gencache.Options[string, []byte]{Fill: func(name string) ([]byte, bool) {
1773 user, err := butwhatabout(name)
1774 if err != nil {
1775 return nil, false
1776 }
1777 j := junkuser(user)
1778 return j.ToBytes(), true
1779}, Duration: 1 * time.Minute})
1780
1781func asjonker(name string) ([]byte, bool) {
1782 j, ok := oldjonkers.Get(name)
1783 return j, ok
1784}
1785
1786var handfull = gencache.New(gencache.Options[string, string]{Fill: func(name string) (string, bool) {
1787 m := strings.Split(name, "@")
1788 if len(m) != 2 {
1789 dlog.Printf("bad fish name: %s", name)
1790 return "", true
1791 }
1792 var href string
1793 row := stmtGetXonker.QueryRow(name, "fishname")
1794 err := row.Scan(&href)
1795 if err == nil {
1796 return href, true
1797 }
1798 dlog.Printf("fishing for %s", name)
1799 j, err := GetJunkFast(readyLuserOne, fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
1800 if err != nil {
1801 ilog.Printf("failed to go fish %s: %s", name, err)
1802 return "", true
1803 }
1804 links, _ := j.GetArray("links")
1805 for _, li := range links {
1806 l, ok := li.(junk.Junk)
1807 if !ok {
1808 continue
1809 }
1810 href, _ := l.GetString("href")
1811 rel, _ := l.GetString("rel")
1812 t, _ := l.GetString("type")
1813 if rel == "self" && friendorfoe(t) {
1814 when := time.Now().UTC().Format(dbtimeformat)
1815 _, err := stmtSaveXonker.Exec(name, href, "fishname", when)
1816 if err != nil {
1817 elog.Printf("error saving fishname: %s", err)
1818 }
1819 return href, true
1820 }
1821 }
1822 return href, true
1823}, Duration: 1 * time.Minute})
1824
1825func gofish(name string) string {
1826 if name[0] == '@' {
1827 name = name[1:]
1828 }
1829 href, _ := handfull.Get(name)
1830 return href
1831}
1832
1833func investigate(name string) (*SomeThing, error) {
1834 if name == "" {
1835 return nil, fmt.Errorf("no name")
1836 }
1837 if name[0] == '@' {
1838 name = gofish(name)
1839 }
1840 if name == "" {
1841 return nil, fmt.Errorf("no name")
1842 }
1843 obj, err := GetJunkFast(readyLuserOne, name)
1844 if err != nil {
1845 return nil, err
1846 }
1847 allinjest(originate(name), obj)
1848 return somethingabout(obj)
1849}
1850
1851func somethingabout(obj junk.Junk) (*SomeThing, error) {
1852 info := new(SomeThing)
1853 t, _ := obj.GetString("type")
1854 isowned := false
1855 switch t {
1856 case "Person":
1857 fallthrough
1858 case "Group":
1859 fallthrough
1860 case "Organization":
1861 fallthrough
1862 case "Application":
1863 fallthrough
1864 case "Service":
1865 info.What = SomeActor
1866 case "OrderedCollection":
1867 isowned = true
1868 fallthrough
1869 case "Collection":
1870 info.What = SomeCollection
1871 default:
1872 return nil, fmt.Errorf("unknown object type")
1873 }
1874 info.XID, _ = obj.GetString("id")
1875 info.Name, _ = obj.GetString("preferredUsername")
1876 if info.Name == "" {
1877 info.Name, _ = obj.GetString("name")
1878 }
1879 if isowned {
1880 info.Owner, _ = obj.GetString("attributedTo")
1881 }
1882 if info.Owner == "" {
1883 info.Owner = info.XID
1884 }
1885 return info, nil
1886}
1887
1888func allinjest(origin string, obj junk.Junk) {
1889 ident, _ := obj.GetString("id")
1890 if ident == "" {
1891 return
1892 }
1893 if originate(ident) != origin {
1894 return
1895 }
1896 keyobj, ok := obj.GetMap("publicKey")
1897 if ok {
1898 ingestpubkey(origin, keyobj)
1899 }
1900 ingestboxes(origin, obj)
1901 ingesthandle(origin, obj)
1902 chatkey, ok := obj.GetString(chatKeyProp)
1903 if ok {
1904 when := time.Now().UTC().Format(dbtimeformat)
1905 _, err := stmtSaveXonker.Exec(ident, chatkey, chatKeyProp, when)
1906 if err != nil {
1907 elog.Printf("error saving chatkey: %s", err)
1908 }
1909 }
1910}
1911
1912func ingestpubkey(origin string, obj junk.Junk) {
1913 keyobj, ok := obj.GetMap("publicKey")
1914 if ok {
1915 obj = keyobj
1916 }
1917 keyname, ok := obj.GetString("id")
1918 var data string
1919 row := stmtGetXonker.QueryRow(keyname, "pubkey")
1920 err := row.Scan(&data)
1921 if err == nil {
1922 return
1923 }
1924 if !ok || origin != originate(keyname) {
1925 ilog.Printf("bad key origin %s <> %s", origin, keyname)
1926 return
1927 }
1928 dlog.Printf("ingesting a needed pubkey: %s", keyname)
1929 owner, ok := obj.GetString("owner")
1930 if !ok {
1931 ilog.Printf("error finding %s pubkey owner", keyname)
1932 return
1933 }
1934 data, ok = obj.GetString("publicKeyPem")
1935 if !ok {
1936 ilog.Printf("error finding %s pubkey", keyname)
1937 return
1938 }
1939 if originate(owner) != origin {
1940 ilog.Printf("bad key owner: %s <> %s", owner, origin)
1941 return
1942 }
1943 _, _, err = httpsig.DecodeKey(data)
1944 if err != nil {
1945 ilog.Printf("error decoding %s pubkey: %s", keyname, err)
1946 return
1947 }
1948 when := time.Now().UTC().Format(dbtimeformat)
1949 _, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
1950 if err != nil {
1951 elog.Printf("error saving key: %s", err)
1952 }
1953}
1954
1955func ingestboxes(origin string, obj junk.Junk) {
1956 ident, _ := obj.GetString("id")
1957 if ident == "" {
1958 return
1959 }
1960 if originate(ident) != origin {
1961 return
1962 }
1963 var info string
1964 row := stmtGetXonker.QueryRow(ident, "boxes")
1965 err := row.Scan(&info)
1966 if err == nil {
1967 return
1968 }
1969 dlog.Printf("ingesting boxes: %s", ident)
1970 inbox, _ := obj.GetString("inbox")
1971 outbox, _ := obj.GetString("outbox")
1972 sbox, _ := obj.GetString("endpoints", "sharedInbox")
1973 if inbox != "" {
1974 when := time.Now().UTC().Format(dbtimeformat)
1975 m := strings.Join([]string{inbox, outbox, sbox}, " ")
1976 _, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
1977 if err != nil {
1978 elog.Printf("error saving boxes: %s", err)
1979 }
1980 }
1981}
1982
1983func ingesthandle(origin string, obj junk.Junk) {
1984 xid, _ := obj.GetString("id")
1985 if xid == "" {
1986 return
1987 }
1988 if originate(xid) != origin {
1989 return
1990 }
1991 var handle string
1992 row := stmtGetXonker.QueryRow(xid, "handle")
1993 err := row.Scan(&handle)
1994 if err == nil {
1995 return
1996 }
1997 handle, _ = obj.GetString("preferredUsername")
1998 if handle != "" {
1999 when := time.Now().UTC().Format(dbtimeformat)
2000 _, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
2001 if err != nil {
2002 elog.Printf("error saving handle: %s", err)
2003 }
2004 }
2005}
2006
2007func updateMe(username string) {
2008 user, _ := somenamedusers.Get(username)
2009 dt := time.Now().UTC().Format(time.RFC3339)
2010 j := junk.New()
2011 j["@context"] = itiswhatitis
2012 j["id"] = fmt.Sprintf("%s/upme/%s/%d", user.URL, user.Name, time.Now().Unix())
2013 j["actor"] = user.URL
2014 j["published"] = dt
2015 j["to"] = thewholeworld
2016 j["type"] = "Update"
2017 j["object"] = junkuser(user)
2018
2019 msg := j.ToBytes()
2020
2021 rcpts := make(map[string]bool)
2022 for _, f := range getdubs(user.ID) {
2023 if f.XID == user.URL {
2024 continue
2025 }
2026 box, ok := boxofboxes.Get(f.XID)
2027 if ok && box.Shared != "" {
2028 rcpts["%"+box.Shared] = true
2029 } else {
2030 rcpts[f.XID] = true
2031 }
2032 }
2033 for a := range rcpts {
2034 go deliverate(user.ID, a, msg)
2035 }
2036}
2037
2038func followme(user *WhatAbout, who string, name string, j junk.Junk) {
2039 folxid, _ := j.GetString("id")
2040
2041 ilog.Printf("updating honker follow: %s %s", who, folxid)
2042
2043 var x string
2044 db := opendatabase()
2045 row := db.QueryRow("select xid from honkers where name = ? and xid = ? and userid = ? and flavor in ('dub', 'undub')", name, who, user.ID)
2046 err := row.Scan(&x)
2047 if err != sql.ErrNoRows {
2048 ilog.Printf("duplicate follow request: %s", who)
2049 _, err = stmtUpdateFlavor.Exec("dub", folxid, user.ID, name, who, "undub")
2050 if err != nil {
2051 elog.Printf("error updating honker: %s", err)
2052 }
2053 } else {
2054 stmtSaveDub.Exec(user.ID, name, who, "dub", folxid)
2055 }
2056 go rubadubdub(user, j)
2057}
2058
2059func unfollowme(user *WhatAbout, who string, name string, j junk.Junk) {
2060 var folxid string
2061 if who == "" {
2062 folxid, _ = j.GetString("object")
2063
2064 db := opendatabase()
2065 row := db.QueryRow("select xid, name from honkers where userid = ? and folxid = ? and flavor in ('dub', 'undub')", user.ID, folxid)
2066 err := row.Scan(&who, &name)
2067 if err != nil {
2068 if err != sql.ErrNoRows {
2069 elog.Printf("error scanning honker: %s", err)
2070 }
2071 return
2072 }
2073 }
2074
2075 ilog.Printf("updating honker undo: %s %s", who, folxid)
2076 _, err := stmtUpdateFlavor.Exec("undub", folxid, user.ID, name, who, "dub")
2077 if err != nil {
2078 elog.Printf("error updating honker: %s", err)
2079 return
2080 }
2081}
2082
2083func followyou(user *WhatAbout, honkerid int64, sync bool) {
2084 var url, owner string
2085 db := opendatabase()
2086 row := db.QueryRow("select xid, owner from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub', 'sub')",
2087 honkerid, user.ID)
2088 err := row.Scan(&url, &owner)
2089 if err != nil {
2090 elog.Printf("can't get honker xid: %s", err)
2091 return
2092 }
2093 folxid := xfiltrate()
2094 ilog.Printf("subscribing to %s", url)
2095 _, err = db.Exec("update honkers set flavor = ?, folxid = ? where honkerid = ?", "presub", folxid, honkerid)
2096 if err != nil {
2097 elog.Printf("error updating honker: %s", err)
2098 return
2099 }
2100 if sync {
2101 subsub(user, url, owner, folxid)
2102 } else {
2103 go subsub(user, url, owner, folxid)
2104 }
2105
2106}
2107func unfollowyou(user *WhatAbout, honkerid int64, sync bool) {
2108 db := opendatabase()
2109 row := db.QueryRow("select xid, owner, folxid, flavor from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub', 'sub')",
2110 honkerid, user.ID)
2111 var url, owner, folxid, flavor string
2112 err := row.Scan(&url, &owner, &folxid, &flavor)
2113 if err != nil {
2114 elog.Printf("can't get honker xid: %s", err)
2115 return
2116 }
2117 if flavor == "peep" {
2118 return
2119 }
2120 ilog.Printf("unsubscribing from %s", url)
2121 _, err = db.Exec("update honkers set flavor = ? where honkerid = ?", "unsub", honkerid)
2122 if err != nil {
2123 elog.Printf("error updating honker: %s", err)
2124 return
2125 }
2126 if sync {
2127 itakeitallback(user, url, owner, folxid)
2128 } else {
2129 go itakeitallback(user, url, owner, folxid)
2130 }
2131}
2132
2133func followyou2(user *WhatAbout, j junk.Junk) {
2134 who, _ := j.GetString("actor")
2135
2136 ilog.Printf("updating honker accept: %s", who)
2137 db := opendatabase()
2138 row := db.QueryRow("select name, folxid from honkers where userid = ? and xid = ? and flavor in ('presub', 'sub')",
2139 user.ID, who)
2140 var name, folxid string
2141 err := row.Scan(&name, &folxid)
2142 if err != nil {
2143 elog.Printf("can't get honker name: %s", err)
2144 return
2145 }
2146 _, err = stmtUpdateFlavor.Exec("sub", folxid, user.ID, name, who, "presub")
2147 if err != nil {
2148 elog.Printf("error updating honker: %s", err)
2149 return
2150 }
2151}
2152
2153func nofollowyou2(user *WhatAbout, j junk.Junk) {
2154 who, _ := j.GetString("actor")
2155
2156 ilog.Printf("updating honker reject: %s", who)
2157 db := opendatabase()
2158 row := db.QueryRow("select name, folxid from honkers where userid = ? and xid = ? and flavor in ('presub', 'sub')",
2159 user.ID, who)
2160 var name, folxid string
2161 err := row.Scan(&name, &folxid)
2162 if err != nil {
2163 elog.Printf("can't get honker name: %s", err)
2164 return
2165 }
2166 _, err = stmtUpdateFlavor.Exec("unsub", folxid, user.ID, name, who, "presub")
2167 _, err = stmtUpdateFlavor.Exec("unsub", folxid, user.ID, name, who, "sub")
2168 if err != nil {
2169 elog.Printf("error updating honker: %s", err)
2170 return
2171 }
2172}