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, image.Params{MaxWidth: 2048, MaxHeight: 2048})
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 currenttid := ""
461 var xonkxonkfn func(item interface{}, origin string) *Honk
462
463 saveoneup := func(xid string) {
464 log.Printf("getting oneup: %s", xid)
465 if depth >= maxdepth {
466 log.Printf("in too deep")
467 return
468 }
469 obj, err := GetJunk(xid)
470 if err != nil {
471 log.Printf("error getting oneup: %s", err)
472 return
473 }
474 depth++
475 xonk := xonkxonkfn(obj, originate(xid))
476 if xonk != nil {
477 savexonk(user, xonk)
478 }
479 depth--
480 }
481
482 xonkxonkfn = func(item interface{}, origin string) *Honk {
483 // id, _ := jsongetstring(item, "id")
484 what, _ := jsongetstring(item, "type")
485 dt, _ := jsongetstring(item, "published")
486
487 var audience []string
488 var err error
489 var xid, rid, url, content, precis, convoy, oonker string
490 var obj map[string]interface{}
491 var ok bool
492 switch what {
493 case "Announce":
494 obj, ok = jsongetmap(item, "object")
495 if ok {
496 xid, _ = jsongetstring(obj, "id")
497 } else {
498 xid, _ = jsongetstring(item, "object")
499 }
500 if !needxonkid(user, xid) {
501 return nil
502 }
503 log.Printf("getting bonk: %s", xid)
504 obj, err = GetJunk(xid)
505 if err != nil {
506 log.Printf("error regetting: %s", err)
507 }
508 origin = originate(xid)
509 what = "bonk"
510 case "Create":
511 obj, _ = jsongetmap(item, "object")
512 what = "honk"
513 case "Delete":
514 obj, _ = jsongetmap(item, "object")
515 xid, _ = jsongetstring(item, "object")
516 what = "eradicate"
517 case "Note":
518 fallthrough
519 case "Article":
520 fallthrough
521 case "Page":
522 obj = item.(map[string]interface{})
523 what = "honk"
524 default:
525 log.Printf("unknown activity: %s", what)
526 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
527 WriteJunk(fd, item.(map[string]interface{}))
528 io.WriteString(fd, "\n")
529 fd.Close()
530 return nil
531 }
532
533 var xonk Honk
534 who, _ := jsongetstring(item, "actor")
535 if obj != nil {
536 if who == "" {
537 who, _ = jsongetstring(obj, "attributedTo")
538 }
539 oonker, _ = jsongetstring(obj, "attributedTo")
540 ot, _ := jsongetstring(obj, "type")
541 url, _ = jsongetstring(obj, "url")
542 if ot == "Note" || ot == "Article" || ot == "Page" {
543 audience = newphone(audience, obj)
544 xid, _ = jsongetstring(obj, "id")
545 precis, _ = jsongetstring(obj, "summary")
546 content, _ = jsongetstring(obj, "content")
547 if !strings.HasPrefix(content, "<p>") {
548 content = "<p>" + content
549 }
550 rid, _ = jsongetstring(obj, "inReplyTo")
551 convoy, _ = jsongetstring(obj, "context")
552 if convoy == "" {
553 convoy, _ = jsongetstring(obj, "conversation")
554 }
555 if what == "honk" && rid != "" {
556 what = "tonk"
557 }
558 }
559 if ot == "Tombstone" {
560 xid, _ = jsongetstring(obj, "id")
561 }
562 atts, _ := jsongetarray(obj, "attachment")
563 for i, att := range atts {
564 at, _ := jsongetstring(att, "type")
565 mt, _ := jsongetstring(att, "mediaType")
566 u, _ := jsongetstring(att, "url")
567 name, _ := jsongetstring(att, "name")
568 localize := false
569 if i > 4 {
570 log.Printf("excessive attachment: %s", at)
571 } else if at == "Document" || at == "Image" {
572 mt = strings.ToLower(mt)
573 log.Printf("attachment: %s %s", mt, u)
574 if mt == "image/jpeg" || mt == "image/png" ||
575 mt == "text/plain" {
576 localize = true
577 }
578 } else {
579 log.Printf("unknown attachment: %s", at)
580 }
581 donk := savedonk(u, name, mt, localize)
582 if donk != nil {
583 xonk.Donks = append(xonk.Donks, donk)
584 }
585 }
586 tags, _ := jsongetarray(obj, "tag")
587 for _, tag := range tags {
588 tt, _ := jsongetstring(tag, "type")
589 name, _ := jsongetstring(tag, "name")
590 if tt == "Emoji" {
591 icon, _ := jsongetmap(tag, "icon")
592 mt, _ := jsongetstring(icon, "mediaType")
593 if mt == "" {
594 mt = "image/png"
595 }
596 u, _ := jsongetstring(icon, "url")
597 donk := savedonk(u, name, mt, true)
598 if donk != nil {
599 xonk.Donks = append(xonk.Donks, donk)
600 }
601 }
602 }
603 }
604 if originate(xid) != origin {
605 log.Printf("original sin: %s <> %s", xid, origin)
606 return nil
607 }
608 audience = append(audience, who)
609
610 audience = oneofakind(audience)
611
612 if currenttid == "" {
613 currenttid = convoy
614 }
615 if convoy == "" {
616 convoy = currenttid
617 }
618
619 if oonker == who {
620 oonker = ""
621 }
622 xonk.UserID = user.ID
623 xonk.What = what
624 xonk.Honker = who
625 xonk.XID = xid
626 xonk.RID = rid
627 xonk.Date, _ = time.Parse(time.RFC3339, dt)
628 xonk.URL = url
629 xonk.Noise = content
630 xonk.Precis = precis
631 xonk.Audience = audience
632 xonk.Convoy = convoy
633 xonk.Oonker = oonker
634
635 if needxonk(user, &xonk) {
636 if what == "tonk" {
637 if needxonkid(user, rid) {
638 saveoneup(rid)
639 }
640 }
641 return &xonk
642 }
643 return nil
644 }
645
646 return xonkxonkfn(item, origin)
647}
648
649func rubadubdub(user *WhatAbout, req map[string]interface{}) {
650 xid, _ := jsongetstring(req, "id")
651 reqactor, _ := jsongetstring(req, "actor")
652 j := NewJunk()
653 j["@context"] = itiswhatitis
654 j["id"] = user.URL + "/dub/" + xid
655 j["type"] = "Accept"
656 j["actor"] = user.URL
657 j["to"] = reqactor
658 j["published"] = time.Now().UTC().Format(time.RFC3339)
659 j["object"] = req
660
661 actor, _ := jsongetstring(req, "actor")
662 box, err := getboxes(actor)
663 if err != nil {
664 log.Printf("can't get dub box: %s", err)
665 return
666 }
667 keyname, key := ziggy(user.Name)
668 err = PostJunk(keyname, key, box.In, j)
669 if err != nil {
670 log.Printf("can't rub a dub: %s", err)
671 return
672 }
673 stmtSaveDub.Exec(user.ID, actor, actor, "dub")
674}
675
676func itakeitallback(user *WhatAbout, xid string) error {
677 j := NewJunk()
678 j["@context"] = itiswhatitis
679 j["id"] = user.URL + "/unsub/" + xid
680 j["type"] = "Undo"
681 j["actor"] = user.URL
682 j["to"] = xid
683 f := NewJunk()
684 f["id"] = user.URL + "/sub/" + xid
685 f["type"] = "Follow"
686 f["actor"] = user.URL
687 f["to"] = xid
688 j["object"] = f
689 j["published"] = time.Now().UTC().Format(time.RFC3339)
690
691 box, err := getboxes(xid)
692 if err != nil {
693 return err
694 }
695 keyname, key := ziggy(user.Name)
696 err = PostJunk(keyname, key, box.In, j)
697 if err != nil {
698 return err
699 }
700 return nil
701}
702
703func subsub(user *WhatAbout, xid string) {
704 j := NewJunk()
705 j["@context"] = itiswhatitis
706 j["id"] = user.URL + "/sub/" + xid
707 j["type"] = "Follow"
708 j["actor"] = user.URL
709 j["to"] = xid
710 j["object"] = xid
711 j["published"] = time.Now().UTC().Format(time.RFC3339)
712
713 box, err := getboxes(xid)
714 if err != nil {
715 log.Printf("can't send follow: %s", err)
716 return
717 }
718 keyname, key := ziggy(user.Name)
719 err = PostJunk(keyname, key, box.In, j)
720 if err != nil {
721 log.Printf("failed to subsub: %s", err)
722 }
723}
724
725func jonkjonk(user *WhatAbout, h *Honk) (map[string]interface{}, map[string]interface{}) {
726 dt := h.Date.Format(time.RFC3339)
727 var jo map[string]interface{}
728 j := NewJunk()
729 j["id"] = user.URL + "/" + h.What + "/" + shortxid(h.XID)
730 j["actor"] = user.URL
731 j["published"] = dt
732 j["to"] = h.Audience[0]
733 if len(h.Audience) > 1 {
734 j["cc"] = h.Audience[1:]
735 }
736
737 switch h.What {
738 case "tonk":
739 fallthrough
740 case "honk":
741 j["type"] = "Create"
742
743 jo = NewJunk()
744 jo["id"] = h.XID
745 jo["type"] = "Note"
746 jo["published"] = dt
747 jo["url"] = h.XID
748 jo["attributedTo"] = user.URL
749 if h.RID != "" {
750 jo["inReplyTo"] = h.RID
751 }
752 if h.Convoy != "" {
753 jo["context"] = h.Convoy
754 jo["conversation"] = h.Convoy
755 }
756 jo["to"] = h.Audience[0]
757 if len(h.Audience) > 1 {
758 jo["cc"] = h.Audience[1:]
759 }
760 if !h.Public {
761 jo["directMessage"] = true
762 }
763 jo["summary"] = h.Precis
764 jo["content"] = mentionize(h.Noise)
765 if strings.HasPrefix(h.Precis, "DZ:") {
766 jo["sensitive"] = true
767 }
768 var tags []interface{}
769 g := bunchofgrapes(h.Noise)
770 for _, m := range g {
771 t := NewJunk()
772 t["type"] = "Mention"
773 t["name"] = m.who
774 t["href"] = m.where
775 tags = append(tags, t)
776 }
777 herd := herdofemus(h.Noise)
778 for _, e := range herd {
779 t := NewJunk()
780 t["id"] = e.ID
781 t["type"] = "Emoji"
782 t["name"] = e.Name
783 i := NewJunk()
784 i["type"] = "Image"
785 i["mediaType"] = "image/png"
786 i["url"] = e.ID
787 t["icon"] = i
788 tags = append(tags, t)
789 }
790 if len(tags) > 0 {
791 jo["tag"] = tags
792 }
793 var atts []interface{}
794 for _, d := range h.Donks {
795 if re_emus.MatchString(d.Name) {
796 continue
797 }
798 jd := NewJunk()
799 jd["mediaType"] = d.Media
800 jd["name"] = d.Name
801 jd["type"] = "Document"
802 jd["url"] = d.URL
803 atts = append(atts, jd)
804 }
805 if len(atts) > 0 {
806 jo["attachment"] = atts
807 }
808 j["object"] = jo
809 case "bonk":
810 j["type"] = "Announce"
811 j["object"] = h.XID
812 case "zonk":
813 j["type"] = "Delete"
814 j["object"] = h.XID
815 }
816
817 return j, jo
818}
819
820func honkworldwide(user *WhatAbout, honk *Honk) {
821 jonk, _ := jonkjonk(user, honk)
822 jonk["@context"] = itiswhatitis
823 var buf bytes.Buffer
824 WriteJunk(&buf, jonk)
825 msg := buf.Bytes()
826
827 rcpts := make(map[string]bool)
828 for _, a := range honk.Audience {
829 if a != thewholeworld && a != user.URL && !strings.HasSuffix(a, "/followers") {
830 box, _ := getboxes(a)
831 if box != nil {
832 if honk.Public && box.Shared != "" {
833 rcpts["%"+box.Shared] = true
834 } else {
835 rcpts["%"+box.In] = true
836 }
837 } else {
838 rcpts[a] = true
839 }
840 }
841 }
842 if honk.Public {
843 for _, f := range getdubs(user.ID) {
844 box, _ := getboxes(f.XID)
845 if box != nil && box.Shared != "" {
846 rcpts["%"+box.Shared] = true
847 } else {
848 rcpts[f.XID] = true
849 }
850 }
851 }
852 for a := range rcpts {
853 go deliverate(0, user.Name, a, msg)
854 }
855}
856
857func asjonker(user *WhatAbout) map[string]interface{} {
858 about := obfusbreak(user.About)
859
860 j := NewJunk()
861 j["@context"] = itiswhatitis
862 j["id"] = user.URL
863 j["type"] = "Person"
864 j["inbox"] = user.URL + "/inbox"
865 j["outbox"] = user.URL + "/outbox"
866 j["followers"] = user.URL + "/followers"
867 j["following"] = user.URL + "/following"
868 j["name"] = user.Display
869 j["preferredUsername"] = user.Name
870 j["summary"] = about
871 j["url"] = user.URL
872 a := NewJunk()
873 a["type"] = "icon"
874 a["mediaType"] = "image/png"
875 a["url"] = fmt.Sprintf("https://%s/a?a=%s", serverName, url.QueryEscape(user.URL))
876 j["icon"] = a
877 k := NewJunk()
878 k["id"] = user.URL + "#key"
879 k["owner"] = user.URL
880 k["publicKeyPem"] = user.Key
881 j["publicKey"] = k
882
883 return j
884}
885
886var handfull = make(map[string]string)
887var handlock sync.Mutex
888
889func gofish(name string) string {
890 if name[0] == '@' {
891 name = name[1:]
892 }
893 m := strings.Split(name, "@")
894 if len(m) != 2 {
895 log.Printf("bad fish name: %s", name)
896 return ""
897 }
898 handlock.Lock()
899 ref, ok := handfull[name]
900 handlock.Unlock()
901 if ok {
902 return ref
903 }
904 row := stmtGetXonker.QueryRow(name, "fishname")
905 var href string
906 err := row.Scan(&href)
907 if err == nil {
908 handlock.Lock()
909 handfull[name] = href
910 handlock.Unlock()
911 return href
912 }
913 log.Printf("fishing for %s", name)
914 j, err := GetJunk(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
915 if err != nil {
916 log.Printf("failed to go fish %s: %s", name, err)
917 handlock.Lock()
918 handfull[name] = ""
919 handlock.Unlock()
920 return ""
921 }
922 links, _ := jsongetarray(j, "links")
923 for _, l := range links {
924 href, _ := jsongetstring(l, "href")
925 rel, _ := jsongetstring(l, "rel")
926 t, _ := jsongetstring(l, "type")
927 if rel == "self" && friendorfoe(t) {
928 stmtSaveXonker.Exec(name, href, "fishname")
929 handlock.Lock()
930 handfull[name] = href
931 handlock.Unlock()
932 return href
933 }
934 }
935 handlock.Lock()
936 handfull[name] = ""
937 handlock.Unlock()
938 return ""
939}
940
941func investigate(name string) string {
942 if name == "" {
943 return ""
944 }
945 if name[0] == '@' {
946 name = gofish(name)
947 }
948 if name == "" {
949 return ""
950 }
951 obj, err := GetJunk(name)
952 if err != nil {
953 log.Printf("error investigating honker: %s", err)
954 return ""
955 }
956 t, _ := jsongetstring(obj, "type")
957 id, _ := jsongetstring(obj, "id")
958 if t != "Person" {
959 log.Printf("it's not a person! %s", name)
960 return ""
961 }
962 return id
963}