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 "compress/gzip"
21 "crypto/rsa"
22 "database/sql"
23 "encoding/json"
24 "fmt"
25 "io"
26 "log"
27 "net/http"
28 "net/url"
29 "os"
30 "strconv"
31 "strings"
32 "sync"
33 "time"
34
35 "humungus.tedunangst.com/r/webs/image"
36)
37
38func NewJunk() map[string]interface{} {
39 return make(map[string]interface{})
40}
41
42func WriteJunk(w io.Writer, j map[string]interface{}) error {
43 e := json.NewEncoder(w)
44 e.SetEscapeHTML(false)
45 e.SetIndent("", " ")
46 err := e.Encode(j)
47 return err
48}
49
50func ReadJunk(r io.Reader) (map[string]interface{}, error) {
51 decoder := json.NewDecoder(r)
52 var j map[string]interface{}
53 err := decoder.Decode(&j)
54 if err != nil {
55 return nil, err
56 }
57 return j, nil
58}
59
60var theonetruename = `application/ld+json; profile="https://www.w3.org/ns/activitystreams"`
61var thefakename = `application/activity+json`
62var falsenames = []string{
63 `application/ld+json`,
64 `application/activity+json`,
65}
66var itiswhatitis = "https://www.w3.org/ns/activitystreams"
67var thewholeworld = "https://www.w3.org/ns/activitystreams#Public"
68
69func friendorfoe(ct string) bool {
70 ct = strings.ToLower(ct)
71 for _, at := range falsenames {
72 if strings.HasPrefix(ct, at) {
73 return true
74 }
75 }
76 return false
77}
78
79func PostJunk(keyname string, key *rsa.PrivateKey, url string, j map[string]interface{}) error {
80 var buf bytes.Buffer
81 WriteJunk(&buf, j)
82 return PostMsg(keyname, key, url, buf.Bytes())
83}
84
85func PostMsg(keyname string, key *rsa.PrivateKey, url string, msg []byte) error {
86 client := http.DefaultClient
87 req, err := http.NewRequest("POST", url, bytes.NewReader(msg))
88 if err != nil {
89 return err
90 }
91 req.Header.Set("User-Agent", "honksnonk/5.0")
92 req.Header.Set("Content-Type", theonetruename)
93 zig(keyname, key, req, msg)
94 resp, err := client.Do(req)
95 if err != nil {
96 return err
97 }
98 resp.Body.Close()
99 switch resp.StatusCode {
100 case 200:
101 case 201:
102 case 202:
103 default:
104 return fmt.Errorf("http post status: %d", resp.StatusCode)
105 }
106 log.Printf("successful post: %s %d", url, resp.StatusCode)
107 return nil
108}
109
110type gzCloser struct {
111 r *gzip.Reader
112 under io.ReadCloser
113}
114
115func (gz *gzCloser) Read(p []byte) (int, error) {
116 return gz.r.Read(p)
117}
118
119func (gz *gzCloser) Close() error {
120 defer gz.under.Close()
121 return gz.r.Close()
122}
123
124func GetJunk(url string) (map[string]interface{}, error) {
125 client := http.DefaultClient
126 req, err := http.NewRequest("GET", url, nil)
127 if err != nil {
128 return nil, err
129 }
130 at := thefakename
131 if strings.Contains(url, ".well-known/webfinger?resource") {
132 at = "application/jrd+json"
133 }
134 req.Header.Set("Accept", at)
135 req.Header.Set("Accept-Encoding", "gzip")
136 req.Header.Set("User-Agent", "honksnonk/5.0")
137 resp, err := client.Do(req)
138 if err != nil {
139 log.Printf("first get failed: %s", err)
140 resp, err = client.Do(req)
141 if err != nil {
142 return nil, err
143 }
144 log.Printf("retry succeeded!")
145 }
146 if resp.StatusCode != 200 {
147 resp.Body.Close()
148 return nil, fmt.Errorf("http get status: %d", resp.StatusCode)
149 }
150 if strings.EqualFold(resp.Header.Get("Content-Encoding"), "gzip") {
151 gz, err := gzip.NewReader(resp.Body)
152 if err != nil {
153 resp.Body.Close()
154 return nil, err
155 }
156 resp.Body = &gzCloser{r: gz, under: resp.Body}
157 }
158 defer resp.Body.Close()
159 j, err := ReadJunk(resp.Body)
160 return j, err
161}
162
163func jsonfindinterface(ii interface{}, keys []string) interface{} {
164 for _, key := range keys {
165 idx, err := strconv.Atoi(key)
166 if err == nil {
167 m := ii.([]interface{})
168 if idx >= len(m) {
169 return nil
170 }
171 ii = m[idx]
172 } else {
173 m := ii.(map[string]interface{})
174 ii = m[key]
175 if ii == nil {
176 return nil
177 }
178 }
179 }
180 return ii
181}
182func jsonfindstring(j interface{}, keys []string) (string, bool) {
183 s, ok := jsonfindinterface(j, keys).(string)
184 return s, ok
185}
186func jsonfindarray(j interface{}, keys []string) ([]interface{}, bool) {
187 a, ok := jsonfindinterface(j, keys).([]interface{})
188 return a, ok
189}
190func jsonfindmap(j interface{}, keys []string) (map[string]interface{}, bool) {
191 m, ok := jsonfindinterface(j, keys).(map[string]interface{})
192 return m, ok
193}
194func jsongetstring(j interface{}, key string) (string, bool) {
195 return jsonfindstring(j, []string{key})
196}
197func jsongetarray(j interface{}, key string) ([]interface{}, bool) {
198 return jsonfindarray(j, []string{key})
199}
200func jsongetmap(j interface{}, key string) (map[string]interface{}, bool) {
201 return jsonfindmap(j, []string{key})
202}
203
204func savedonk(url string, name, media string, localize bool) *Donk {
205 if url == "" {
206 return nil
207 }
208 var donk Donk
209 row := stmtFindFile.QueryRow(url)
210 err := row.Scan(&donk.FileID)
211 if err == nil {
212 return &donk
213 }
214 log.Printf("saving donk: %s", url)
215 if err != nil && err != sql.ErrNoRows {
216 log.Printf("error querying: %s", err)
217 }
218 xid := xfiltrate()
219 data := []byte{}
220 if localize {
221 resp, err := http.Get(url)
222 if err != nil {
223 log.Printf("error fetching %s: %s", url, err)
224 localize = false
225 goto saveit
226 }
227 defer resp.Body.Close()
228 if resp.StatusCode != 200 {
229 localize = false
230 goto saveit
231 }
232 var buf bytes.Buffer
233 io.Copy(&buf, resp.Body)
234
235 data = buf.Bytes()
236 if strings.HasPrefix(media, "image") {
237 img, err := image.Vacuum(&buf)
238 if err != nil {
239 log.Printf("unable to decode image: %s", err)
240 localize = false
241 goto saveit
242 }
243 data = img.Data
244 media = "image/" + img.Format
245 }
246 }
247saveit:
248 res, err := stmtSaveFile.Exec(xid, name, url, media, localize, data)
249 if err != nil {
250 log.Printf("error saving file %s: %s", url, err)
251 return nil
252 }
253 donk.FileID, _ = res.LastInsertId()
254 return &donk
255}
256
257func needxonk(user *WhatAbout, x *Honk) bool {
258 if x.What == "eradicate" {
259 return true
260 }
261 if thoudostbitethythumb(user.ID, x.Audience, x.XID) {
262 log.Printf("not saving thumb biter? %s via %s", x.XID, x.Honker)
263 return false
264 }
265 return needxonkid(user, x.XID)
266}
267func needxonkid(user *WhatAbout, xid string) bool {
268 if strings.HasPrefix(xid, user.URL+"/h/") {
269 return false
270 }
271 row := stmtFindXonk.QueryRow(user.ID, xid)
272 var id int64
273 err := row.Scan(&id)
274 if err == nil {
275 return false
276 }
277 if err != sql.ErrNoRows {
278 log.Printf("err querying xonk: %s", err)
279 }
280 return true
281}
282
283func savexonk(user *WhatAbout, x *Honk) {
284 if x.What == "eradicate" {
285 log.Printf("eradicating %s by %s", x.XID, x.Honker)
286 xonk := getxonk(user.ID, x.XID)
287 if xonk != nil {
288 stmtZonkDonks.Exec(xonk.ID)
289 _, err := stmtZonkIt.Exec(user.ID, x.XID)
290 if err != nil {
291 log.Printf("error eradicating: %s", err)
292 }
293 }
294 return
295 }
296 log.Printf("saving xonk: %s", x.XID)
297 dt := x.Date.UTC().Format(dbtimeformat)
298 aud := strings.Join(x.Audience, " ")
299 whofore := 0
300 if strings.Contains(aud, user.URL) {
301 whofore = 1
302 }
303 res, err := stmtSaveHonk.Exec(x.UserID, x.What, x.Honker, x.XID, x.RID, dt, x.URL, aud,
304 x.Noise, x.Convoy, whofore, "html", x.Precis, x.Oonker)
305 if err != nil {
306 log.Printf("err saving xonk: %s", err)
307 return
308 }
309 x.ID, _ = res.LastInsertId()
310 for _, d := range x.Donks {
311 _, err = stmtSaveDonk.Exec(x.ID, d.FileID)
312 if err != nil {
313 log.Printf("err saving donk: %s", err)
314 return
315 }
316 }
317}
318
319type Box struct {
320 In string
321 Out string
322 Shared string
323}
324
325var boxofboxes = make(map[string]*Box)
326var boxlock sync.Mutex
327var boxinglock sync.Mutex
328
329func getboxes(ident string) (*Box, error) {
330 boxlock.Lock()
331 b, ok := boxofboxes[ident]
332 boxlock.Unlock()
333 if ok {
334 return b, nil
335 }
336
337 boxinglock.Lock()
338 defer boxinglock.Unlock()
339
340 boxlock.Lock()
341 b, ok = boxofboxes[ident]
342 boxlock.Unlock()
343 if ok {
344 return b, nil
345 }
346
347 var info string
348 row := stmtGetXonker.QueryRow(ident, "boxes")
349 err := row.Scan(&info)
350 if err != nil {
351 j, err := GetJunk(ident)
352 if err != nil {
353 return nil, err
354 }
355 inbox, _ := jsongetstring(j, "inbox")
356 outbox, _ := jsongetstring(j, "outbox")
357 sbox, _ := jsonfindstring(j, []string{"endpoints", "sharedInbox"})
358 b = &Box{In: inbox, Out: outbox, Shared: sbox}
359 if inbox != "" {
360 m := strings.Join([]string{inbox, outbox, sbox}, " ")
361 _, err = stmtSaveXonker.Exec(ident, m, "boxes")
362 if err != nil {
363 log.Printf("error saving boxes: %s", err)
364 }
365 }
366 } else {
367 m := strings.Split(info, " ")
368 b = &Box{In: m[0], Out: m[1], Shared: m[2]}
369 }
370
371 boxlock.Lock()
372 boxofboxes[ident] = b
373 boxlock.Unlock()
374 return b, nil
375}
376
377func peeppeep() {
378 user, _ := butwhatabout("htest")
379 honkers := gethonkers(user.ID)
380 for _, f := range honkers {
381 if f.Flavor != "peep" {
382 continue
383 }
384 log.Printf("getting updates: %s", f.XID)
385 box, err := getboxes(f.XID)
386 if err != nil {
387 log.Printf("error getting outbox: %s", err)
388 continue
389 }
390 log.Printf("getting outbox")
391 j, err := GetJunk(box.Out)
392 if err != nil {
393 log.Printf("err: %s", err)
394 continue
395 }
396 t, _ := jsongetstring(j, "type")
397 origin := originate(f.XID)
398 if t == "OrderedCollection" {
399 items, _ := jsongetarray(j, "orderedItems")
400 if items == nil {
401 page1, _ := jsongetstring(j, "first")
402 j, err = GetJunk(page1)
403 if err != nil {
404 log.Printf("err: %s", err)
405 continue
406 }
407 items, _ = jsongetarray(j, "orderedItems")
408 }
409
410 for _, item := range items {
411 xonk := xonkxonk(user, item, origin)
412 if xonk != nil {
413 savexonk(user, xonk)
414 }
415 }
416 }
417 }
418}
419
420func whosthere(xid string) ([]string, string) {
421 obj, err := GetJunk(xid)
422 if err != nil {
423 log.Printf("error getting remote xonk: %s", err)
424 return nil, ""
425 }
426 convoy, _ := jsongetstring(obj, "context")
427 if convoy == "" {
428 convoy, _ = jsongetstring(obj, "conversation")
429 }
430 return newphone(nil, obj), convoy
431}
432
433func newphone(a []string, obj map[string]interface{}) []string {
434 for _, addr := range []string{"to", "cc", "attributedTo"} {
435 who, _ := jsongetstring(obj, addr)
436 if who != "" {
437 a = append(a, who)
438 }
439 whos, _ := jsongetarray(obj, addr)
440 for _, w := range whos {
441 who, _ := w.(string)
442 if who != "" {
443 a = append(a, who)
444 }
445 }
446 }
447 return a
448}
449
450func consumeactivity(user *WhatAbout, j interface{}, origin string) {
451 xonk := xonkxonk(user, j, origin)
452 if xonk != nil {
453 savexonk(user, xonk)
454 }
455}
456
457func xonkxonk(user *WhatAbout, item interface{}, origin string) *Honk {
458 depth := 0
459 maxdepth := 4
460 var xonkxonkfn func(item interface{}, origin string) *Honk
461
462 saveoneup := func(xid string) {
463 log.Printf("getting oneup: %s", xid)
464 if depth >= maxdepth {
465 log.Printf("in too deep")
466 return
467 }
468 obj, err := GetJunk(xid)
469 if err != nil {
470 log.Printf("error getting oneup: %s", err)
471 return
472 }
473 depth++
474 xonk := xonkxonkfn(obj, originate(xid))
475 if xonk != nil {
476 savexonk(user, xonk)
477 }
478 depth--
479 }
480
481 xonkxonkfn = func(item interface{}, origin string) *Honk {
482 // id, _ := jsongetstring(item, "id")
483 what, _ := jsongetstring(item, "type")
484 dt, _ := jsongetstring(item, "published")
485
486 var audience []string
487 var err error
488 var xid, rid, url, content, precis, convoy, oonker string
489 var obj map[string]interface{}
490 var ok bool
491 switch what {
492 case "Announce":
493 obj, ok = jsongetmap(item, "object")
494 if ok {
495 xid, _ = jsongetstring(obj, "id")
496 } else {
497 xid, _ = jsongetstring(item, "object")
498 }
499 if !needxonkid(user, xid) {
500 return nil
501 }
502 log.Printf("getting bonk: %s", xid)
503 obj, err = GetJunk(xid)
504 if err != nil {
505 log.Printf("error regetting: %s", err)
506 }
507 origin = originate(xid)
508 what = "bonk"
509 case "Create":
510 obj, _ = jsongetmap(item, "object")
511 what = "honk"
512 case "Delete":
513 obj, _ = jsongetmap(item, "object")
514 xid, _ = jsongetstring(item, "object")
515 what = "eradicate"
516 case "Note":
517 fallthrough
518 case "Article":
519 fallthrough
520 case "Page":
521 obj = item.(map[string]interface{})
522 what = "honk"
523 default:
524 log.Printf("unknown activity: %s", what)
525 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
526 WriteJunk(fd, item.(map[string]interface{}))
527 io.WriteString(fd, "\n")
528 fd.Close()
529 return nil
530 }
531
532 var xonk Honk
533 who, _ := jsongetstring(item, "actor")
534 if obj != nil {
535 if who == "" {
536 who, _ = jsongetstring(obj, "attributedTo")
537 }
538 oonker, _ = jsongetstring(obj, "attributedTo")
539 ot, _ := jsongetstring(obj, "type")
540 url, _ = jsongetstring(obj, "url")
541 if ot == "Note" || ot == "Article" || ot == "Page" {
542 audience = newphone(audience, obj)
543 xid, _ = jsongetstring(obj, "id")
544 precis, _ = jsongetstring(obj, "summary")
545 content, _ = jsongetstring(obj, "content")
546 if !strings.HasPrefix(content, "<p>") {
547 content = "<p>" + content
548 }
549 rid, _ = jsongetstring(obj, "inReplyTo")
550 convoy, _ = jsongetstring(obj, "context")
551 if convoy == "" {
552 convoy, _ = jsongetstring(obj, "conversation")
553 }
554 if what == "honk" && rid != "" {
555 what = "tonk"
556 }
557 }
558 if ot == "Tombstone" {
559 xid, _ = jsongetstring(obj, "id")
560 }
561 atts, _ := jsongetarray(obj, "attachment")
562 for i, att := range atts {
563 at, _ := jsongetstring(att, "type")
564 mt, _ := jsongetstring(att, "mediaType")
565 u, _ := jsongetstring(att, "url")
566 name, _ := jsongetstring(att, "name")
567 localize := false
568 if i > 4 {
569 log.Printf("excessive attachment: %s", at)
570 } else if at == "Document" || at == "Image" {
571 mt = strings.ToLower(mt)
572 log.Printf("attachment: %s %s", mt, u)
573 if mt == "image/jpeg" || mt == "image/png" ||
574 mt == "text/plain" {
575 localize = true
576 }
577 } else {
578 log.Printf("unknown attachment: %s", at)
579 }
580 donk := savedonk(u, name, mt, localize)
581 if donk != nil {
582 xonk.Donks = append(xonk.Donks, donk)
583 }
584 }
585 tags, _ := jsongetarray(obj, "tag")
586 for _, tag := range tags {
587 tt, _ := jsongetstring(tag, "type")
588 name, _ := jsongetstring(tag, "name")
589 if tt == "Emoji" {
590 icon, _ := jsongetmap(tag, "icon")
591 mt, _ := jsongetstring(icon, "mediaType")
592 if mt == "" {
593 mt = "image/png"
594 }
595 u, _ := jsongetstring(icon, "url")
596 donk := savedonk(u, name, mt, true)
597 if donk != nil {
598 xonk.Donks = append(xonk.Donks, donk)
599 }
600 }
601 }
602 }
603 if originate(xid) != origin {
604 log.Printf("original sin: %s <> %s", xid, origin)
605 return nil
606 }
607 audience = append(audience, who)
608
609 audience = oneofakind(audience)
610
611 if oonker == who {
612 oonker = ""
613 }
614 xonk.UserID = user.ID
615 xonk.What = what
616 xonk.Honker = who
617 xonk.XID = xid
618 xonk.RID = rid
619 xonk.Date, _ = time.Parse(time.RFC3339, dt)
620 xonk.URL = url
621 xonk.Noise = content
622 xonk.Precis = precis
623 xonk.Audience = audience
624 xonk.Convoy = convoy
625 xonk.Oonker = oonker
626
627 if needxonk(user, &xonk) {
628 if what == "tonk" {
629 if needxonkid(user, rid) {
630 saveoneup(rid)
631 }
632 }
633 return &xonk
634 }
635 return nil
636 }
637
638 return xonkxonkfn(item, origin)
639}
640
641func rubadubdub(user *WhatAbout, req map[string]interface{}) {
642 xid, _ := jsongetstring(req, "id")
643 reqactor, _ := jsongetstring(req, "actor")
644 j := NewJunk()
645 j["@context"] = itiswhatitis
646 j["id"] = user.URL + "/dub/" + xid
647 j["type"] = "Accept"
648 j["actor"] = user.URL
649 j["to"] = reqactor
650 j["published"] = time.Now().UTC().Format(time.RFC3339)
651 j["object"] = req
652
653 actor, _ := jsongetstring(req, "actor")
654 box, err := getboxes(actor)
655 if err != nil {
656 log.Printf("can't get dub box: %s", err)
657 return
658 }
659 keyname, key := ziggy(user.Name)
660 err = PostJunk(keyname, key, box.In, j)
661 if err != nil {
662 log.Printf("can't rub a dub: %s", err)
663 return
664 }
665 stmtSaveDub.Exec(user.ID, actor, actor, "dub")
666}
667
668func itakeitallback(user *WhatAbout, xid string) error {
669 j := NewJunk()
670 j["@context"] = itiswhatitis
671 j["id"] = user.URL + "/unsub/" + xid
672 j["type"] = "Undo"
673 j["actor"] = user.URL
674 j["to"] = xid
675 f := NewJunk()
676 f["id"] = user.URL + "/sub/" + xid
677 f["type"] = "Follow"
678 f["actor"] = user.URL
679 f["to"] = xid
680 j["object"] = f
681 j["published"] = time.Now().UTC().Format(time.RFC3339)
682
683 box, err := getboxes(xid)
684 if err != nil {
685 return err
686 }
687 keyname, key := ziggy(user.Name)
688 err = PostJunk(keyname, key, box.In, j)
689 if err != nil {
690 return err
691 }
692 return nil
693}
694
695func subsub(user *WhatAbout, xid string) {
696 j := NewJunk()
697 j["@context"] = itiswhatitis
698 j["id"] = user.URL + "/sub/" + xid
699 j["type"] = "Follow"
700 j["actor"] = user.URL
701 j["to"] = xid
702 j["object"] = xid
703 j["published"] = time.Now().UTC().Format(time.RFC3339)
704
705 box, err := getboxes(xid)
706 if err != nil {
707 log.Printf("can't send follow: %s", err)
708 return
709 }
710 keyname, key := ziggy(user.Name)
711 err = PostJunk(keyname, key, box.In, j)
712 if err != nil {
713 log.Printf("failed to subsub: %s", err)
714 }
715}
716
717func jonkjonk(user *WhatAbout, h *Honk) (map[string]interface{}, map[string]interface{}) {
718 dt := h.Date.Format(time.RFC3339)
719 var jo map[string]interface{}
720 j := NewJunk()
721 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
722 j["actor"] = user.URL
723 j["published"] = dt
724 j["to"] = h.Audience[0]
725 if len(h.Audience) > 1 {
726 j["cc"] = h.Audience[1:]
727 }
728
729 switch h.What {
730 case "tonk":
731 fallthrough
732 case "honk":
733 j["type"] = "Create"
734
735 jo = NewJunk()
736 jo["id"] = h.XID
737 jo["type"] = "Note"
738 jo["published"] = dt
739 jo["url"] = h.XID
740 jo["attributedTo"] = user.URL
741 if h.RID != "" {
742 jo["inReplyTo"] = h.RID
743 }
744 if h.Convoy != "" {
745 jo["context"] = h.Convoy
746 jo["conversation"] = h.Convoy
747 }
748 jo["to"] = h.Audience[0]
749 if len(h.Audience) > 1 {
750 jo["cc"] = h.Audience[1:]
751 }
752 if !h.Public {
753 jo["directMessage"] = true
754 }
755 jo["summary"] = h.Precis
756 jo["content"] = mentionize(h.Noise)
757 if strings.HasPrefix(h.Precis, "DZ:") {
758 jo["sensitive"] = true
759 }
760 var tags []interface{}
761 g := bunchofgrapes(h.Noise)
762 for _, m := range g {
763 t := NewJunk()
764 t["type"] = "Mention"
765 t["name"] = m.who
766 t["href"] = m.where
767 tags = append(tags, t)
768 }
769 herd := herdofemus(h.Noise)
770 for _, e := range herd {
771 t := NewJunk()
772 t["id"] = e.ID
773 t["type"] = "Emoji"
774 t["name"] = e.Name
775 i := NewJunk()
776 i["type"] = "Image"
777 i["mediaType"] = "image/png"
778 i["url"] = e.ID
779 t["icon"] = i
780 tags = append(tags, t)
781 }
782 if len(tags) > 0 {
783 jo["tag"] = tags
784 }
785 var atts []interface{}
786 for _, d := range h.Donks {
787 if re_emus.MatchString(d.Name) {
788 continue
789 }
790 jd := NewJunk()
791 jd["mediaType"] = d.Media
792 jd["name"] = d.Name
793 jd["type"] = "Document"
794 jd["url"] = d.URL
795 atts = append(atts, jd)
796 }
797 if len(atts) > 0 {
798 jo["attachment"] = atts
799 }
800 j["object"] = jo
801 case "bonk":
802 j["type"] = "Announce"
803 j["object"] = h.XID
804 case "zonk":
805 j["type"] = "Delete"
806 j["object"] = h.XID
807 }
808
809 return j, jo
810}
811
812func honkworldwide(user *WhatAbout, honk *Honk) {
813 jonk, _ := jonkjonk(user, honk)
814 jonk["@context"] = itiswhatitis
815 var buf bytes.Buffer
816 WriteJunk(&buf, jonk)
817 msg := buf.Bytes()
818
819 rcpts := make(map[string]bool)
820 for _, a := range honk.Audience {
821 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
822 box, _ := getboxes(a)
823 if box != nil {
824 if honk.Public && box.Shared != "" {
825 rcpts["%"+box.Shared] = true
826 } else {
827 rcpts["%"+box.In] = true
828 }
829 } else {
830 rcpts[a] = true
831 }
832 }
833 }
834 if honk.Public {
835 for _, f := range getdubs(user.ID) {
836 box, _ := getboxes(f.XID)
837 if box != nil && box.Shared != "" {
838 rcpts["%"+box.Shared] = true
839 } else {
840 rcpts[f.XID] = true
841 }
842 }
843 }
844 for a := range rcpts {
845 go deliverate(0, user.Name, a, msg)
846 }
847}
848
849func asjonker(user *WhatAbout) map[string]interface{} {
850 about := obfusbreak(user.About)
851
852 j := NewJunk()
853 j["@context"] = itiswhatitis
854 j["id"] = user.URL
855 j["type"] = "Person"
856 j["inbox"] = user.URL + "/inbox"
857 j["outbox"] = user.URL + "/outbox"
858 j["followers"] = user.URL + "/followers"
859 j["following"] = user.URL + "/following"
860 j["name"] = user.Display
861 j["preferredUsername"] = user.Name
862 j["summary"] = about
863 j["url"] = user.URL
864 a := NewJunk()
865 a["type"] = "icon"
866 a["mediaType"] = "image/png"
867 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
868 j["icon"] = a
869 k := NewJunk()
870 k["id"] = user.URL + "#key"
871 k["owner"] = user.URL
872 k["publicKeyPem"] = user.Key
873 j["publicKey"] = k
874
875 return j
876}
877
878var handfull = make(map[string]string)
879var handlock sync.Mutex
880
881func gofish(name string) string {
882 if name[0] == '@' {
883 name = name[1:]
884 }
885 m := strings.Split(name, "@")
886 if len(m) != 2 {
887 log.Printf("bad fish name: %s", name)
888 return ""
889 }
890 handlock.Lock()
891 ref, ok := handfull[name]
892 handlock.Unlock()
893 if ok {
894 return ref
895 }
896 row := stmtGetXonker.QueryRow(name, "fishname")
897 var href string
898 err := row.Scan(&href)
899 if err == nil {
900 handlock.Lock()
901 handfull[name] = href
902 handlock.Unlock()
903 return href
904 }
905 log.Printf("fishing for %s", name)
906 j, err := GetJunk(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
907 if err != nil {
908 log.Printf("failed to go fish %s: %s", name, err)
909 handlock.Lock()
910 handfull[name] = ""
911 handlock.Unlock()
912 return ""
913 }
914 links, _ := jsongetarray(j, "links")
915 for _, l := range links {
916 href, _ := jsongetstring(l, "href")
917 rel, _ := jsongetstring(l, "rel")
918 t, _ := jsongetstring(l, "type")
919 if rel == "self" && friendorfoe(t) {
920 stmtSaveXonker.Exec(name, href, "fishname")
921 handlock.Lock()
922 handfull[name] = href
923 handlock.Unlock()
924 return href
925 }
926 }
927 handlock.Lock()
928 handfull[name] = ""
929 handlock.Unlock()
930 return ""
931}
932
933func investigate(name string) string {
934 if name == "" {
935 return ""
936 }
937 if name[0] == '@' {
938 name = gofish(name)
939 }
940 if name == "" {
941 return ""
942 }
943 obj, err := GetJunk(name)
944 if err != nil {
945 log.Printf("error investigating honker: %s", err)
946 return ""
947 }
948 t, _ := jsongetstring(obj, "type")
949 id, _ := jsongetstring(obj, "id")
950 if t != "Person" {
951 log.Printf("it's not a person! %s", name)
952 return ""
953 }
954 return id
955}