activity.go (view raw)
1//
2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
3//
4// Permission to use, copy, modify, and distribute this software for any
5// purpose with or without fee is hereby granted, provided that the above
6// copyright notice and this permission notice appear in all copies.
7//
8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15
16package main
17
18import (
19 "bytes"
20 "crypto/rsa"
21 "database/sql"
22 "fmt"
23 "io"
24 "log"
25 notrand "math/rand"
26 "net/http"
27 "net/url"
28 "os"
29 "strings"
30 "sync"
31 "time"
32
33 "humungus.tedunangst.com/r/webs/httpsig"
34 "humungus.tedunangst.com/r/webs/image"
35 "humungus.tedunangst.com/r/webs/junk"
36)
37
38var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
39var thefakename = `application/activity+json`
40var falsenames = []string{
41 `application/ld+json`,
42 `application/activity+json`,
43}
44var itiswhatitis = "https://www.w3.org/ns/activitystreams"
45var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
46
47func friendorfoe(ct string) bool {
48 ct = strings.ToLower(ct)
49 for _, at := range falsenames {
50 if strings.HasPrefix(ct, at) {
51 return true
52 }
53 }
54 return false
55}
56
57func PostJunk(keyname string, key *rsa.PrivateKey, url string, j junk.Junk) error {
58 var buf bytes.Buffer
59 j.Write(&buf)
60 return PostMsg(keyname, key, url, buf.Bytes())
61}
62
63func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
64 client := http.DefaultClient
65 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
66 if err != nil {
67 return err
68 }
69 req.Header.Set("User-Agent", "honksnonk/5.0; "+serverName)
70 req.Header.Set("Content-Type", theonetruename)
71 httpsig.SignRequest(keyname, key, req, msg)
72 resp, err := client.Do(req)
73 if err != nil {
74 return err
75 }
76 resp.Body.Close()
77 switch resp.StatusCode {
78 case 200:
79 case 201:
80 case 202:
81 default:
82 return fmt.Errorf("http post status: %d", resp.StatusCode)
83 }
84 log.Printf("successful post: %s %d", url, resp.StatusCode)
85 return nil
86}
87
88func GetJunk(url string) (junk.Junk, error) {
89 return GetJunkTimeout(url, 30*time.Second)
90}
91
92func GetJunkFast(url string) (junk.Junk, error) {
93 return GetJunkTimeout(url, 5*time.Second)
94}
95
96func GetJunkHardMode(url string) (junk.Junk, error) {
97 j, err := GetJunk(url)
98 if err != nil {
99 emsg := err.Error()
100 if emsg == "http get status: 502" || strings.Contains(emsg, "timeout") {
101 log.Printf("trying again after error: %s", emsg)
102 time.Sleep(time.Duration(60+notrand.Int63n(60)) * time.Second)
103 j, err = GetJunk(url)
104 if err != nil {
105 log.Printf("still couldn't get it")
106 } else {
107 log.Printf("retry success!")
108 }
109 }
110 }
111 return j, err
112}
113
114func GetJunkTimeout(url string, timeout time.Duration) (junk.Junk, error) {
115 at := thefakename
116 if strings.Contains(url, ".well-known/webfinger?resource") {
117 at = "application/jrd+json"
118 }
119 return junk.Get(url, junk.GetArgs{
120 Accept: at,
121 Agent: "honksnonk/5.0; " + serverName,
122 Timeout: timeout,
123 })
124}
125
126func savedonk(url string, name, media string, localize bool) *Donk {
127 if url == "" {
128 return nil
129 }
130 var donk Donk
131 row := stmtFindFile.QueryRow(url)
132 err := row.Scan(&donk.FileID)
133 if err == nil {
134 return &donk
135 }
136 log.Printf("saving donk: %s", url)
137 if err != nil && err != sql.ErrNoRows {
138 log.Printf("error querying: %s", err)
139 }
140 xid := xfiltrate()
141 data := []byte{}
142 if localize {
143 resp, err := http.Get(url)
144 if err != nil {
145 log.Printf("error fetching %s: %s", url, err)
146 localize = false
147 goto saveit
148 }
149 defer resp.Body.Close()
150 if resp.StatusCode != 200 {
151 localize = false
152 goto saveit
153 }
154 var buf bytes.Buffer
155 io.Copy(&buf, resp.Body)
156
157 data = buf.Bytes()
158 if strings.HasPrefix(media, "image") {
159 img, err := image.Vacuum(&buf,
160 image.Params{LimitSize: 4800 * 4800, MaxWidth: 2048, MaxHeight: 2048})
161 if err != nil {
162 log.Printf("unable to decode image: %s", err)
163 localize = false
164 data = []byte{}
165 goto saveit
166 }
167 data = img.Data
168 media = "image/" + img.Format
169 } else if len(data) > 100000 {
170 log.Printf("not saving large attachment")
171 localize = false
172 data = []byte{}
173 }
174 }
175saveit:
176 res, err := stmtSaveFile.Exec(xid, name, url, media, localize, data)
177 if err != nil {
178 log.Printf("error saving file %s: %s", url, err)
179 return nil
180 }
181 donk.FileID, _ = res.LastInsertId()
182 return &donk
183}
184
185func iszonked(userid int64, xid string) bool {
186 row := stmtFindZonk.QueryRow(userid, xid)
187 var id int64
188 err := row.Scan(&id)
189 if err == nil {
190 return true
191 }
192 if err != sql.ErrNoRows {
193 log.Printf("err querying zonk: %s", err)
194 }
195 return false
196}
197
198func needxonk(user *WhatAbout, x *Honk) bool {
199 if x.What == "eradicate" {
200 return true
201 }
202 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
203 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
204 return false
205 }
206 return needxonkid(user, x.XID)
207}
208func needxonkid(user *WhatAbout, xid string) bool {
209 if strings.HasPrefix(xid, user.URL+"/") {
210 return false
211 }
212 if iszonked(user.ID, xid) {
213 log.Printf("already zonked: %s", xid)
214 return false
215 }
216 row := stmtFindXonk.QueryRow(user.ID, xid)
217 var id int64
218 err := row.Scan(&id)
219 if err == nil {
220 return false
221 }
222 if err != sql.ErrNoRows {
223 log.Printf("err querying xonk: %s", err)
224 }
225 return true
226}
227
228func savexonk(user *WhatAbout, x *Honk) {
229 if x.What == "eradicate" {
230 log.Printf("eradicating %s by %s", x.XID, x.Honker)
231 xonk := getxonk(user.ID, x.XID)
232 if xonk != nil {
233 _, err := stmtZonkDonks.Exec(xonk.ID)
234 if err != nil {
235 log.Printf("error eradicating: %s", err)
236 }
237 _, err = stmtZonkIt.Exec(user.ID, x.XID)
238 if err != nil {
239 log.Printf("error eradicating: %s", err)
240 }
241 }
242 _, err := stmtSaveZonker.Exec(user.ID, x.XID, "zonk")
243 if err != nil {
244 log.Printf("error eradicating: %s", err)
245 }
246 return
247 }
248 log.Printf("saving xonk: %s", x.XID)
249 dt := x.Date.UTC().Format(dbtimeformat)
250 aud := strings.Join(x.Audience, " ")
251 whofore := 0
252 if strings.Contains(aud, user.URL) {
253 whofore = 1
254 }
255 res, err := stmtSaveHonk.Exec(x.UserID, x.What, x.Honker, x.XID, x.RID, dt, x.URL, aud,
256 x.Noise, x.Convoy, whofore, "html", x.Precis, x.Oonker, 0)
257 if err != nil {
258 log.Printf("err saving xonk: %s", err)
259 return
260 }
261 x.ID, _ = res.LastInsertId()
262 for _, d := range x.Donks {
263 _, err = stmtSaveDonk.Exec(x.ID, d.FileID)
264 if err != nil {
265 log.Printf("err saving donk: %s", err)
266 return
267 }
268 }
269}
270
271type Box struct {
272 In string
273 Out string
274 Shared string
275}
276
277var boxofboxes = make(map[string]*Box)
278var boxlock sync.Mutex
279var boxinglock sync.Mutex
280
281func getboxes(ident string) (*Box, error) {
282 boxlock.Lock()
283 b, ok := boxofboxes[ident]
284 boxlock.Unlock()
285 if ok {
286 return b, nil
287 }
288
289 boxinglock.Lock()
290 defer boxinglock.Unlock()
291
292 boxlock.Lock()
293 b, ok = boxofboxes[ident]
294 boxlock.Unlock()
295 if ok {
296 return b, nil
297 }
298
299 var info string
300 row := stmtGetXonker.QueryRow(ident, "boxes")
301 err := row.Scan(&info)
302 if err != nil {
303 j, err := GetJunk(ident)
304 if err != nil {
305 return nil, err
306 }
307 inbox, _ := j.GetString("inbox")
308 outbox, _ := j.GetString("outbox")
309 sbox, _ := j.FindString([]string{"endpoints", "sharedInbox"})
310 b = &Box{In: inbox, Out: outbox, Shared: sbox}
311 if inbox != "" {
312 m := strings.Join([]string{inbox, outbox, sbox}, " ")
313 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
314 if err != nil {
315 log.Printf("error saving boxes: %s", err)
316 }
317 }
318 } else {
319 m := strings.Split(info, " ")
320 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
321 }
322
323 boxlock.Lock()
324 boxofboxes[ident] = b
325 boxlock.Unlock()
326 return b, nil
327}
328
329func gimmexonks(user *WhatAbout, outbox string) {
330 log.Printf("getting outbox: %s", outbox)
331 j, err := GetJunk(outbox)
332 if err != nil {
333 log.Printf("error getting outbox: %s", err)
334 return
335 }
336 t, _ := j.GetString("type")
337 origin := originate(outbox)
338 if t == "OrderedCollection" {
339 items, _ := j.GetArray("orderedItems")
340 if items == nil {
341 obj, ok := j.GetMap("first")
342 if ok {
343 items, _ = obj.GetArray("orderedItems")
344 } else {
345 page1, _ := j.GetString("first")
346 j, err = GetJunk(page1)
347 if err != nil {
348 log.Printf("error gettings page1: %s", err)
349 return
350 }
351 items, _ = j.GetArray("orderedItems")
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 continue
364 }
365 xonk := xonkxonk(user, obj, origin)
366 if xonk != nil {
367 savexonk(user, xonk)
368 }
369 }
370 }
371}
372
373func peeppeep() {
374 user, _ := butwhatabout("htest")
375 honkers := gethonkers(user.ID)
376 for _, f := range honkers {
377 if f.Flavor != "peep" {
378 continue
379 }
380 log.Printf("getting updates: %s", f.XID)
381 box, err := getboxes(f.XID)
382 if err != nil {
383 log.Printf("error getting outbox: %s", err)
384 continue
385 }
386 gimmexonks(user, box.Out)
387 }
388}
389func whosthere(xid string) ([]string, string) {
390 obj, err := GetJunk(xid)
391 if err != nil {
392 log.Printf("error getting remote xonk: %s", err)
393 return nil, ""
394 }
395 convoy, _ := obj.GetString("context")
396 if convoy == "" {
397 convoy, _ = obj.GetString("conversation")
398 }
399 return newphone(nil, obj), convoy
400}
401
402func newphone(a []string, obj junk.Junk) []string {
403 for _, addr := range []string{"to", "cc", "attributedTo"} {
404 who, _ := obj.GetString(addr)
405 if who != "" {
406 a = append(a, who)
407 }
408 whos, _ := obj.GetArray(addr)
409 for _, w := range whos {
410 who, _ := w.(string)
411 if who != "" {
412 a = append(a, who)
413 }
414 }
415 }
416 return a
417}
418
419func extractattrto(obj junk.Junk) string {
420 who, _ := obj.GetString("attributedTo")
421 if who != "" {
422 return who
423 }
424 o, ok := obj.GetMap("attributedTo")
425 if ok {
426 id, ok := o.GetString("id")
427 if ok {
428 return id
429 }
430 }
431 arr, _ := obj.GetArray("attributedTo")
432 for _, a := range arr {
433 o, ok := a.(junk.Junk)
434 if ok {
435 t, _ := o.GetString("type")
436 id, _ := o.GetString("id")
437 if t == "Person" || t == "" {
438 return id
439 }
440 }
441 }
442 return ""
443}
444
445func consumeactivity(user *WhatAbout, j junk.Junk, origin string) {
446 xonk := xonkxonk(user, j, origin)
447 if xonk != nil {
448 savexonk(user, xonk)
449 }
450}
451
452func xonkxonk(user *WhatAbout, item junk.Junk, origin string) *Honk {
453 depth := 0
454 maxdepth := 10
455 currenttid := ""
456 var xonkxonkfn func(item junk.Junk, origin string) *Honk
457
458 saveoneup := func(xid string) {
459 log.Printf("getting oneup: %s", xid)
460 if depth >= maxdepth {
461 log.Printf("in too deep")
462 return
463 }
464 obj, err := GetJunkHardMode(xid)
465 if err != nil {
466 log.Printf("error getting oneup: %s", err)
467 return
468 }
469 depth++
470 xonk := xonkxonkfn(obj, originate(xid))
471 if xonk != nil {
472 savexonk(user, xonk)
473 }
474 depth--
475 }
476
477 xonkxonkfn = func(item junk.Junk, origin string) *Honk {
478 // id, _ := item.GetString( "id")
479 what, _ := item.GetString("type")
480 dt, _ := item.GetString("published")
481
482 var audience []string
483 var err error
484 var xid, rid, url, content, precis, convoy, oonker string
485 var obj junk.Junk
486 var ok bool
487 switch what {
488 case "Announce":
489 obj, ok = item.GetMap("object")
490 if ok {
491 xid, _ = obj.GetString("id")
492 } else {
493 xid, _ = item.GetString("object")
494 }
495 if !needxonkid(user, xid) {
496 return nil
497 }
498 log.Printf("getting bonk: %s", xid)
499 obj, err = GetJunkHardMode(xid)
500 origin = originate(xid)
501 what = "bonk"
502 case "Create":
503 obj, ok = item.GetMap("object")
504 if !ok {
505 xid, _ = obj.GetString("object")
506 log.Printf("getting created honk: %s", xid)
507 obj, err = GetJunkHardMode(xid)
508 if err != nil {
509 log.Printf("error getting creation: %s", err)
510 }
511 }
512 what = "honk"
513 case "Delete":
514 obj, _ = item.GetMap("object")
515 xid, _ = item.GetString("object")
516 what = "eradicate"
517 case "Video":
518 fallthrough
519 case "Question":
520 fallthrough
521 case "Note":
522 fallthrough
523 case "Article":
524 fallthrough
525 case "Page":
526 obj = item
527 what = "honk"
528 default:
529 log.Printf("unknown activity: %s", what)
530 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
531 item.Write(fd)
532 io.WriteString(fd, "\n")
533 fd.Close()
534 return nil
535 }
536
537 var xonk Honk
538 who, _ := item.GetString("actor")
539 if obj != nil {
540 if who == "" {
541 who = extractattrto(obj)
542 }
543 oonker = extractattrto(obj)
544 ot, _ := obj.GetString("type")
545 url, _ = obj.GetString("url")
546 if ot == "Tombstone" {
547 xid, _ = obj.GetString("id")
548 } else {
549 audience = newphone(audience, obj)
550 xid, _ = obj.GetString("id")
551 precis, _ = obj.GetString("summary")
552 if precis == "" {
553 precis, _ = obj.GetString("name")
554 }
555 content, _ = obj.GetString("content")
556 if !strings.HasPrefix(content, "<p>") {
557 content = "<p>" + content
558 }
559 sens, _ := obj["sensitive"].(bool)
560 if sens && precis == "" {
561 precis = "unspecified horror"
562 }
563 rid, ok = obj.GetString("inReplyTo")
564 if !ok {
565 robj, ok := obj.GetMap("inReplyTo")
566 if ok {
567 rid, _ = robj.GetString("id")
568 }
569 }
570 convoy, _ = obj.GetString("context")
571 if convoy == "" {
572 convoy, _ = obj.GetString("conversation")
573 }
574 if ot == "Question" {
575 if what == "honk" {
576 what = "qonk"
577 }
578 content += "<ul>"
579 ans, _ := obj.GetArray("oneOf")
580 for _, ai := range ans {
581 a, ok := ai.(junk.Junk)
582 if !ok {
583 continue
584 }
585 as, _ := a.GetString("name")
586 content += "<li>" + as
587 }
588 ans, _ = obj.GetArray("anyOf")
589 for _, ai := range ans {
590 a, ok := ai.(junk.Junk)
591 if !ok {
592 continue
593 }
594 as, _ := a.GetString("name")
595 content += "<li>" + as
596 }
597 content += "</ul>"
598 }
599 if what == "honk" && rid != "" {
600 what = "tonk"
601 }
602 }
603 atts, _ := obj.GetArray("attachment")
604 for i, atti := range atts {
605 att, ok := atti.(junk.Junk)
606 if !ok {
607 continue
608 }
609 at, _ := att.GetString("type")
610 mt, _ := att.GetString("mediaType")
611 u, _ := att.GetString("url")
612 name, _ := att.GetString("name")
613 localize := false
614 if i > 4 {
615 log.Printf("excessive attachment: %s", at)
616 } else if at == "Document" || at == "Image" {
617 mt = strings.ToLower(mt)
618 log.Printf("attachment: %s %s", mt, u)
619 if mt == "text/plain" || strings.HasPrefix(mt, "image") {
620 localize = true
621 }
622 } else {
623 log.Printf("unknown attachment: %s", at)
624 }
625 donk := savedonk(u, name, mt, localize)
626 if donk != nil {
627 xonk.Donks = append(xonk.Donks, donk)
628 }
629 }
630 tags, _ := obj.GetArray("tag")
631 for _, tagi := range tags {
632 tag, ok := tagi.(junk.Junk)
633 if !ok {
634 continue
635 }
636 tt, _ := tag.GetString("type")
637 name, _ := tag.GetString("name")
638 if tt == "Emoji" {
639 icon, _ := tag.GetMap("icon")
640 mt, _ := icon.GetString("mediaType")
641 if mt == "" {
642 mt = "image/png"
643 }
644 u, _ := icon.GetString("url")
645 donk := savedonk(u, name, mt, true)
646 if donk != nil {
647 xonk.Donks = append(xonk.Donks, donk)
648 }
649 }
650 }
651 }
652 if originate(xid) != origin {
653 log.Printf("original sin: %s <> %s", xid, origin)
654 item.Write(os.Stdout)
655 return nil
656 }
657 audience = append(audience, who)
658
659 audience = oneofakind(audience)
660
661 if currenttid == "" {
662 currenttid = convoy
663 }
664
665 if oonker == who {
666 oonker = ""
667 }
668 xonk.UserID = user.ID
669 xonk.What = what
670 xonk.Honker = who
671 xonk.XID = xid
672 xonk.RID = rid
673 xonk.Date, _ = time.Parse(time.RFC3339, dt)
674 xonk.URL = url
675 xonk.Noise = content
676 xonk.Precis = precis
677 xonk.Audience = audience
678 xonk.Oonker = oonker
679
680 if needxonk(user, &xonk) {
681 if rid != "" {
682 if needxonkid(user, rid) {
683 saveoneup(rid)
684 }
685 }
686 if convoy == "" {
687 convoy = currenttid
688 }
689 xonk.Convoy = convoy
690 return &xonk
691 }
692 return nil
693 }
694
695 return xonkxonkfn(item, origin)
696}
697
698func rubadubdub(user *WhatAbout, req junk.Junk) {
699 xid, _ := req.GetString("id")
700 actor, _ := req.GetString("actor")
701 j := junk.New()
702 j["@context"] = itiswhatitis
703 j["id"] = user.URL + "/dub/" + url.QueryEscape(xid)
704 j["type"] = "Accept"
705 j["actor"] = user.URL
706 j["to"] = actor
707 j["published"] = time.Now().UTC().Format(time.RFC3339)
708 j["object"] = req
709
710 var buf bytes.Buffer
711 j.Write(&buf)
712 msg := buf.Bytes()
713
714 deliverate(0, user.Name, actor, msg)
715}
716
717func itakeitallback(user *WhatAbout, xid string) {
718 j := junk.New()
719 j["@context"] = itiswhatitis
720 j["id"] = user.URL + "/unsub/" + url.QueryEscape(xid)
721 j["type"] = "Undo"
722 j["actor"] = user.URL
723 j["to"] = xid
724 f := junk.New()
725 f["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
726 f["type"] = "Follow"
727 f["actor"] = user.URL
728 f["to"] = xid
729 f["object"] = xid
730 j["object"] = f
731 j["published"] = time.Now().UTC().Format(time.RFC3339)
732
733 var buf bytes.Buffer
734 j.Write(&buf)
735 msg := buf.Bytes()
736
737 deliverate(0, user.Name, xid, msg)
738}
739
740func subsub(user *WhatAbout, xid string) {
741 j := junk.New()
742 j["@context"] = itiswhatitis
743 j["id"] = user.URL + "/sub/" + url.QueryEscape(xid)
744 j["type"] = "Follow"
745 j["actor"] = user.URL
746 j["to"] = xid
747 j["object"] = xid
748 j["published"] = time.Now().UTC().Format(time.RFC3339)
749
750 var buf bytes.Buffer
751 j.Write(&buf)
752 msg := buf.Bytes()
753
754 deliverate(0, user.Name, xid, msg)
755}
756
757func jonkjonk(user *WhatAbout, h *Honk) (junk.Junk, junk.Junk) {
758 dt := h.Date.Format(time.RFC3339)
759 var jo junk.Junk
760 j := junk.New()
761 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
762 j["actor"] = user.URL
763 j["published"] = dt
764 if h.Public {
765 j["to"] = []string{h.Audience[0], user.URL + "/followers"}
766 } else {
767 j["to"] = h.Audience[0]
768 }
769 if len(h.Audience) > 1 {
770 j["cc"] = h.Audience[1:]
771 }
772
773 switch h.What {
774 case "tonk":
775 fallthrough
776 case "honk":
777 j["type"] = "Create"
778
779 jo = junk.New()
780 jo["id"] = h.XID
781 jo["type"] = "Note"
782 jo["published"] = dt
783 jo["url"] = h.XID
784 jo["attributedTo"] = user.URL
785 if h.RID != "" {
786 jo["inReplyTo"] = h.RID
787 }
788 if h.Convoy != "" {
789 jo["context"] = h.Convoy
790 jo["conversation"] = h.Convoy
791 }
792 jo["to"] = h.Audience[0]
793 if len(h.Audience) > 1 {
794 jo["cc"] = h.Audience[1:]
795 }
796 if !h.Public {
797 jo["directMessage"] = true
798 }
799 jo["summary"] = h.Precis
800 jo["content"] = mentionize(h.Noise)
801 if strings.HasPrefix(h.Precis, "DZ:") {
802 jo["sensitive"] = true
803 }
804
805 var tags []junk.Junk
806 g := bunchofgrapes(h.Noise)
807 for _, m := range g {
808 t := junk.New()
809 t["type"] = "Mention"
810 t["name"] = m.who
811 t["href"] = m.where
812 tags = append(tags, t)
813 }
814 ooo := ontologies(h.Noise)
815 for _, o := range ooo {
816 t := junk.New()
817 t["type"] = "Hashtag"
818 t["name"] = o
819 tags = append(tags, t)
820 }
821 herd := herdofemus(h.Noise)
822 for _, e := range herd {
823 t := junk.New()
824 t["id"] = e.ID
825 t["type"] = "Emoji"
826 t["name"] = e.Name
827 i := junk.New()
828 i["type"] = "Image"
829 i["mediaType"] = "image/png"
830 i["url"] = e.ID
831 t["icon"] = i
832 tags = append(tags, t)
833 }
834 if len(tags) > 0 {
835 jo["tag"] = tags
836 }
837 var atts []junk.Junk
838 for _, d := range h.Donks {
839 if re_emus.MatchString(d.Name) {
840 continue
841 }
842 jd := junk.New()
843 jd["mediaType"] = d.Media
844 jd["name"] = d.Name
845 jd["type"] = "Document"
846 jd["url"] = d.URL
847 atts = append(atts, jd)
848 }
849 if len(atts) > 0 {
850 jo["attachment"] = atts
851 }
852 j["object"] = jo
853 case "bonk":
854 j["type"] = "Announce"
855 if h.Convoy != "" {
856 j["context"] = h.Convoy
857 }
858 j["object"] = h.XID
859 case "zonk":
860 j["type"] = "Delete"
861 j["object"] = h.XID
862 }
863
864 return j, jo
865}
866
867func honkworldwide(user *WhatAbout, honk *Honk) {
868 jonk, _ := jonkjonk(user, honk)
869 jonk["@context"] = itiswhatitis
870 var buf bytes.Buffer
871 jonk.Write(&buf)
872 msg := buf.Bytes()
873
874 rcpts := make(map[string]bool)
875 for _, a := range honk.Audience {
876 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
877 box, _ := getboxes(a)
878 if box != nil && honk.Public && box.Shared != "" {
879 rcpts["%"+box.Shared] = true
880 } else {
881 rcpts[a] = true
882 }
883 }
884 }
885 if honk.Public {
886 for _, f := range getdubs(user.ID) {
887 box, _ := getboxes(f.XID)
888 if box != nil && box.Shared != "" {
889 rcpts["%"+box.Shared] = true
890 } else {
891 rcpts[f.XID] = true
892 }
893 }
894 }
895 for a := range rcpts {
896 go deliverate(0, user.Name, a, msg)
897 }
898}
899
900func asjonker(user *WhatAbout) junk.Junk {
901 about := obfusbreak(user.About)
902
903 j := junk.New()
904 j["@context"] = itiswhatitis
905 j["id"] = user.URL
906 j["type"] = "Person"
907 j["inbox"] = user.URL + "/inbox"
908 j["outbox"] = user.URL + "/outbox"
909 j["followers"] = user.URL + "/followers"
910 j["following"] = user.URL + "/following"
911 j["name"] = user.Display
912 j["preferredUsername"] = user.Name
913 j["summary"] = about
914 j["url"] = user.URL
915 a := junk.New()
916 a["type"] = "Image"
917 a["mediaType"] = "image/png"
918 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
919 j["icon"] = a
920 k := junk.New()
921 k["id"] = user.URL + "#key"
922 k["owner"] = user.URL
923 k["publicKeyPem"] = user.Key
924 j["publicKey"] = k
925
926 return j
927}
928
929var handfull = make(map[string]string)
930var handlock sync.Mutex
931
932func gofish(name string) string {
933 if name[0] == '@' {
934 name = name[1:]
935 }
936 m := strings.Split(name, "@")
937 if len(m) != 2 {
938 log.Printf("bad fish name: %s", name)
939 return ""
940 }
941 handlock.Lock()
942 ref, ok := handfull[name]
943 handlock.Unlock()
944 if ok {
945 return ref
946 }
947 row := stmtGetXonker.QueryRow(name, "fishname")
948 var href string
949 err := row.Scan(&href)
950 if err == nil {
951 handlock.Lock()
952 handfull[name] = href
953 handlock.Unlock()
954 return href
955 }
956 log.Printf("fishing for %s", name)
957 j, err := GetJunkFast(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
958 if err != nil {
959 log.Printf("failed to go fish %s: %s", name, err)
960 handlock.Lock()
961 handfull[name] = ""
962 handlock.Unlock()
963 return ""
964 }
965 links, _ := j.GetArray("links")
966 for _, li := range links {
967 l, ok := li.(junk.Junk)
968 if !ok {
969 continue
970 }
971 href, _ := l.GetString("href")
972 rel, _ := l.GetString("rel")
973 t, _ := l.GetString("type")
974 if rel == "self" && friendorfoe(t) {
975 _, err := stmtSaveXonker.Exec(name, href, "fishname")
976 if err != nil {
977 log.Printf("error saving fishname: %s", err)
978 }
979 handlock.Lock()
980 handfull[name] = href
981 handlock.Unlock()
982 return href
983 }
984 }
985 handlock.Lock()
986 handfull[name] = ""
987 handlock.Unlock()
988 return ""
989}
990
991func isactor(t string) bool {
992 switch t {
993 case "Person":
994 case "Organization":
995 case "Application":
996 case "Service":
997 default:
998 return false
999 }
1000 return true
1001}
1002
1003func investigate(name string) *Honker {
1004 if name == "" {
1005 return nil
1006 }
1007 if name[0] == '@' {
1008 name = gofish(name)
1009 }
1010 if name == "" {
1011 return nil
1012 }
1013 log.Printf("digging up some info on %s", name)
1014 obj, err := GetJunkFast(name)
1015 if err != nil {
1016 log.Printf("error investigating honker: %s", err)
1017 return nil
1018 }
1019 t, _ := obj.GetString("type")
1020 if !isactor(t) {
1021 log.Printf("it's not a person! %s", name)
1022 return nil
1023 }
1024 xid, _ := obj.GetString("id")
1025 handle, _ := obj.GetString("preferredUsername")
1026 return &Honker{XID: xid, Handle: handle}
1027}