honk.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/rand"
21 "crypto/rsa"
22 "database/sql"
23 "fmt"
24 "html"
25 "html/template"
26 "image"
27 _ "image/gif"
28 _ "image/jpeg"
29 _ "image/png"
30 "io"
31 "log"
32 notrand "math/rand"
33 "net/http"
34 "os"
35 "sort"
36 "strings"
37 "sync"
38 "time"
39
40 "github.com/gorilla/mux"
41)
42
43type UserInfo struct {
44 UserID int64
45 Username string
46}
47
48type WhatAbout struct {
49 ID int64
50 Name string
51 Display string
52 About string
53 Key string
54 URL string
55}
56
57type Honk struct {
58 ID int64
59 UserID int64
60 Username string
61 What string
62 Honker string
63 XID string
64 RID string
65 Date time.Time
66 URL string
67 Noise string
68 Audience []string
69 HTML template.HTML
70 Donks []*Donk
71}
72
73type Donk struct {
74 FileID int64
75 XID string
76 Name string
77 URL string
78 Media string
79 Content []byte
80}
81
82type Honker struct {
83 ID int64
84 UserID int64
85 Name string
86 XID string
87 Flavor string
88}
89
90var serverName string
91var iconName = "icon.png"
92
93var readviews *Template
94
95func getInfo(r *http.Request) map[string]interface{} {
96 templinfo := make(map[string]interface{})
97 templinfo["StyleParam"] = getstyleparam("views/style.css")
98 templinfo["LocalStyleParam"] = getstyleparam("views/local.css")
99 templinfo["ServerName"] = serverName
100 templinfo["IconName"] = iconName
101 templinfo["UserInfo"] = GetUserInfo(r)
102 templinfo["LogoutCSRF"] = GetCSRF("logout", r)
103 return templinfo
104}
105
106func homepage(w http.ResponseWriter, r *http.Request) {
107 templinfo := getInfo(r)
108 u := GetUserInfo(r)
109 var honks []*Honk
110 if u != nil {
111 honks = gethonksforuser(u.UserID)
112 templinfo["HonkCSRF"] = GetCSRF("honkhonk", r)
113 } else {
114 honks = gethonks()
115 }
116 sort.Slice(honks, func(i, j int) bool {
117 return honks[i].Date.After(honks[j].Date)
118 })
119
120 var modtime time.Time
121 if len(honks) > 0 {
122 modtime = honks[0].Date
123 }
124 debug := false
125 getconfig("debug", &debug)
126 imh := r.Header.Get("If-Modified-Since")
127 if !debug && imh != "" && !modtime.IsZero() {
128 ifmod, err := time.Parse(http.TimeFormat, imh)
129 if err == nil && !modtime.After(ifmod) {
130 w.WriteHeader(http.StatusNotModified)
131 return
132 }
133 }
134 reverbolate(honks)
135
136 msg := "Things happen."
137 getconfig("servermsg", &msg)
138 templinfo["Honks"] = honks
139 templinfo["ShowRSS"] = true
140 templinfo["ServerMessage"] = msg
141 if u == nil {
142 w.Header().Set("Cache-Control", "max-age=60")
143 } else {
144 w.Header().Set("Cache-Control", "max-age=0")
145 }
146 w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
147 err := readviews.ExecuteTemplate(w, "homepage.html", templinfo)
148 if err != nil {
149 log.Print(err)
150 }
151}
152
153func showrss(w http.ResponseWriter, r *http.Request) {
154 name := mux.Vars(r)["name"]
155
156 var honks []*Honk
157 if name != "" {
158 honks = gethonksbyuser(name)
159 } else {
160 honks = gethonks()
161 }
162 sort.Slice(honks, func(i, j int) bool {
163 return honks[i].Date.After(honks[j].Date)
164 })
165 reverbolate(honks)
166
167 home := fmt.Sprintf("https://%s/", serverName)
168 base := home
169 if name != "" {
170 home += "u/" + name
171 name += " "
172 }
173 feed := RssFeed{
174 Title: name + "honk",
175 Link: home,
176 Description: name + "honk rss",
177 FeedImage: &RssFeedImage{
178 URL: base + "icon.png",
179 Title: name + "honk rss",
180 Link: home,
181 },
182 }
183 var modtime time.Time
184 past := time.Now().UTC().Add(-3 * 24 * time.Hour)
185 for _, honk := range honks {
186 if honk.Date.Before(past) {
187 break
188 }
189 desc := string(honk.HTML)
190 for _, d := range honk.Donks {
191 desc += fmt.Sprintf(`<p><a href="%sd/%s">Attachment: %s</a>`,
192 base, d.XID, html.EscapeString(d.Name))
193 }
194
195 feed.Items = append(feed.Items, &RssItem{
196 Title: fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
197 Description: RssCData{desc},
198 Link: honk.URL,
199 PubDate: honk.Date.Format(time.RFC1123),
200 })
201 if honk.Date.After(modtime) {
202 modtime = honk.Date
203 }
204 }
205 w.Header().Set("Cache-Control", "max-age=300")
206 w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
207
208 err := feed.Write(w)
209 if err != nil {
210 log.Printf("error writing rss: %s", err)
211 }
212}
213
214func butwhatabout(name string) (*WhatAbout, error) {
215 row := stmtWhatAbout.QueryRow(name)
216 var user WhatAbout
217 err := row.Scan(&user.ID, &user.Name, &user.Display, &user.About, &user.Key)
218 user.URL = fmt.Sprintf("https://%s/u/%s", serverName, user.Name)
219 return &user, err
220}
221
222func crappola(j map[string]interface{}) bool {
223 t, _ := jsongetstring(j, "type")
224 a, _ := jsongetstring(j, "actor")
225 o, _ := jsongetstring(j, "object")
226 if t == "Delete" && a == o {
227 log.Printf("crappola from %s", a)
228 return true
229 }
230 return false
231}
232
233func ping(user *WhatAbout, who string) {
234 box, err := getboxes(who)
235 if err != nil {
236 log.Printf("no inbox for ping: %s", err)
237 return
238 }
239 j := NewJunk()
240 j["@context"] = itiswhatitis
241 j["type"] = "Ping"
242 j["id"] = user.URL + "/ping/" + xfiltrate()
243 j["actor"] = user.URL
244 j["to"] = who
245 keyname, key := ziggy(user.Name)
246 err = PostJunk(keyname, key, box.In, j)
247 if err != nil {
248 log.Printf("can't send ping: %s", err)
249 return
250 }
251 log.Printf("sent ping to %s: %s", who, j["id"])
252}
253
254func pong(user *WhatAbout, who string, obj string) {
255 box, err := getboxes(who)
256 if err != nil {
257 log.Printf("no inbox for pong %s : %s", who, err)
258 return
259 }
260 j := NewJunk()
261 j["@context"] = itiswhatitis
262 j["type"] = "Pong"
263 j["id"] = user.URL + "/pong/" + xfiltrate()
264 j["actor"] = user.URL
265 j["to"] = who
266 j["object"] = obj
267 keyname, key := ziggy(user.Name)
268 err = PostJunk(keyname, key, box.In, j)
269 if err != nil {
270 log.Printf("can't send pong: %s", err)
271 return
272 }
273}
274
275func inbox(w http.ResponseWriter, r *http.Request) {
276 name := mux.Vars(r)["name"]
277 user, err := butwhatabout(name)
278 if err != nil {
279 http.NotFound(w, r)
280 return
281 }
282 var buf bytes.Buffer
283 io.Copy(&buf, r.Body)
284 payload := buf.Bytes()
285 j, err := ReadJunk(bytes.NewReader(payload))
286 if err != nil {
287 log.Printf("bad payload: %s", err)
288 io.WriteString(os.Stdout, "bad payload\n")
289 os.Stdout.Write(payload)
290 io.WriteString(os.Stdout, "\n")
291 return
292 }
293 if crappola(j) {
294 return
295 }
296 keyname, err := zag(r, payload)
297 if err != nil {
298 log.Printf("inbox message failed signature: %s", err)
299 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
300 io.WriteString(fd, "bad signature:\n")
301 WriteJunk(fd, j)
302 io.WriteString(fd, "\n")
303 fd.Close()
304 return
305 }
306 fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
307 WriteJunk(fd, j)
308 io.WriteString(fd, "\n")
309 fd.Close()
310 who, _ := jsongetstring(j, "actor")
311 if !keymatch(keyname, who) {
312 log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
313 return
314 }
315 what, _ := jsongetstring(j, "type")
316 switch what {
317 case "Ping":
318 obj, _ := jsongetstring(j, "id")
319 log.Printf("ping from %s: %s", who, obj)
320 pong(user, who, obj)
321 case "Pong":
322 obj, _ := jsongetstring(j, "object")
323 log.Printf("pong from %s: %s", who, obj)
324 case "Follow":
325 log.Printf("updating honker follow: %s", who)
326 rubadubdub(user, j)
327 case "Accept":
328 db := opendatabase()
329 log.Printf("updating honker accept: %s", who)
330 db.Exec("update honkers set flavor = 'sub' where xid = ? and flavor = 'presub'", who)
331 case "Undo":
332 obj, ok := jsongetmap(j, "object")
333 if !ok {
334 log.Printf("unknown undo no object")
335 } else {
336 what, _ := jsongetstring(obj, "type")
337 if what != "Follow" {
338 log.Printf("unknown undo: %s", what)
339 } else {
340 log.Printf("updating honker undo: %s", who)
341 db := opendatabase()
342 db.Exec("update honkers set flavor = 'undub' where xid = ? and flavor = 'dub'", who)
343 }
344 }
345 case "Like":
346 break
347 default:
348 xonk := xonkxonk(j)
349 if xonk != nil && needxonk(user, xonk) {
350 xonk.UserID = user.ID
351 savexonk(xonk)
352 }
353 }
354}
355
356func outbox(w http.ResponseWriter, r *http.Request) {
357 name := mux.Vars(r)["name"]
358 user, err := butwhatabout(name)
359 if err != nil {
360 http.NotFound(w, r)
361 return
362 }
363 honks := gethonksbyuser(name)
364
365 var jonks []map[string]interface{}
366 for _, h := range honks {
367 j, _ := jonkjonk(user, h)
368 jonks = append(jonks, j)
369 }
370
371 j := NewJunk()
372 j["@context"] = itiswhatitis
373 j["id"] = user.URL + "/outbox"
374 j["type"] = "OrderedCollection"
375 j["totalItems"] = len(jonks)
376 j["orderedItems"] = jonks
377
378 w.Header().Set("Cache-Control", "max-age=60")
379 w.Header().Set("Content-Type", theonetruename)
380 WriteJunk(w, j)
381}
382
383func viewuser(w http.ResponseWriter, r *http.Request) {
384 name := mux.Vars(r)["name"]
385 user, err := butwhatabout(name)
386 if err != nil {
387 http.NotFound(w, r)
388 return
389 }
390 if friendorfoe(r.Header.Get("Accept")) {
391 j := asjonker(user)
392 w.Header().Set("Cache-Control", "max-age=600")
393 w.Header().Set("Content-Type", theonetruename)
394 WriteJunk(w, j)
395 return
396 }
397 honks := gethonksbyuser(name)
398 u := GetUserInfo(r)
399 honkpage(w, r, u, user, honks)
400}
401
402func viewhonker(w http.ResponseWriter, r *http.Request) {
403 name := mux.Vars(r)["name"]
404 u := GetUserInfo(r)
405 honks := gethonksbyhonker(u.UserID, name)
406 honkpage(w, r, nil, nil, honks)
407}
408
409func fingerlicker(w http.ResponseWriter, r *http.Request) {
410 orig := r.FormValue("resource")
411
412 log.Printf("finger lick: %s", orig)
413
414 if strings.HasPrefix(orig, "acct:") {
415 orig = orig[5:]
416 }
417
418 name := orig
419 idx := strings.LastIndexByte(name, '/')
420 if idx != -1 {
421 name = name[idx+1:]
422 if "https://"+serverName+"/u/"+name != orig {
423 log.Printf("foreign request rejected")
424 name = ""
425 }
426 } else {
427 idx = strings.IndexByte(name, '@')
428 if idx != -1 {
429 name = name[:idx]
430 if name+"@"+serverName != orig {
431 log.Printf("foreign request rejected")
432 name = ""
433 }
434 }
435 }
436 user, err := butwhatabout(name)
437 if err != nil {
438 http.NotFound(w, r)
439 return
440 }
441
442 j := NewJunk()
443 j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, serverName)
444 j["aliases"] = []string{user.URL}
445 var links []map[string]interface{}
446 l := NewJunk()
447 l["rel"] = "self"
448 l["type"] = `application/activity+json`
449 l["href"] = user.URL
450 links = append(links, l)
451 j["links"] = links
452
453 w.Header().Set("Cache-Control", "max-age=3600")
454 w.Header().Set("Content-Type", "application/jrd+json")
455 WriteJunk(w, j)
456}
457
458func viewhonk(w http.ResponseWriter, r *http.Request) {
459 name := mux.Vars(r)["name"]
460 xid := mux.Vars(r)["xid"]
461 user, err := butwhatabout(name)
462 if err != nil {
463 http.NotFound(w, r)
464 return
465 }
466 h := getxonk(name, xid)
467 if h == nil {
468 http.NotFound(w, r)
469 return
470 }
471 if friendorfoe(r.Header.Get("Accept")) {
472 _, j := jonkjonk(user, h)
473 j["@context"] = itiswhatitis
474 w.Header().Set("Cache-Control", "max-age=3600")
475 w.Header().Set("Content-Type", theonetruename)
476 WriteJunk(w, j)
477 return
478 }
479 honkpage(w, r, nil, nil, []*Honk{h})
480}
481
482func honkpage(w http.ResponseWriter, r *http.Request, u *UserInfo, user *WhatAbout, honks []*Honk) {
483 reverbolate(honks)
484 templinfo := getInfo(r)
485 if u != nil && u.Username == user.Name {
486 templinfo["UserCSRF"] = GetCSRF("saveuser", r)
487 templinfo["HonkCSRF"] = GetCSRF("honkhonk", r)
488 }
489 if u == nil {
490 w.Header().Set("Cache-Control", "max-age=60")
491 }
492 if user != nil {
493 templinfo["Name"] = user.Name
494 whatabout := user.About
495 templinfo["RawWhatAbout"] = whatabout
496 whatabout = obfusbreak(whatabout)
497 templinfo["WhatAbout"] = cleanstring(whatabout)
498 }
499 templinfo["Honks"] = honks
500 err := readviews.ExecuteTemplate(w, "honkpage.html", templinfo)
501 if err != nil {
502 log.Print(err)
503 }
504}
505
506func saveuser(w http.ResponseWriter, r *http.Request) {
507 whatabout := r.FormValue("whatabout")
508 u := GetUserInfo(r)
509 db := opendatabase()
510 _, err := db.Exec("update users set about = ? where username = ?", whatabout, u.Username)
511 if err != nil {
512 log.Printf("error bouting what: %s", err)
513 }
514
515 http.Redirect(w, r, "/u/"+u.Username, http.StatusSeeOther)
516}
517
518func gethonkers(userid int64) []*Honker {
519 rows, err := stmtHonkers.Query(userid)
520 if err != nil {
521 log.Printf("error querying honkers: %s", err)
522 return nil
523 }
524 defer rows.Close()
525 var honkers []*Honker
526 for rows.Next() {
527 var f Honker
528 err = rows.Scan(&f.ID, &f.UserID, &f.Name, &f.XID, &f.Flavor)
529 if err != nil {
530 log.Printf("error scanning honker: %s", err)
531 return nil
532 }
533 honkers = append(honkers, &f)
534 }
535 return honkers
536}
537
538func getdubs(userid int64) []*Honker {
539 rows, err := stmtDubbers.Query(userid)
540 if err != nil {
541 log.Printf("error querying dubs: %s", err)
542 return nil
543 }
544 defer rows.Close()
545 var honkers []*Honker
546 for rows.Next() {
547 var f Honker
548 err = rows.Scan(&f.ID, &f.UserID, &f.Name, &f.XID, &f.Flavor)
549 if err != nil {
550 log.Printf("error scanning honker: %s", err)
551 return nil
552 }
553 honkers = append(honkers, &f)
554 }
555 return honkers
556}
557
558func getxonk(name, xid string) *Honk {
559 var h Honk
560 var dt, aud string
561 row := stmtOneXonk.QueryRow(xid)
562 err := row.Scan(&h.ID, &h.UserID, &h.Username, &h.What, &h.Honker, &h.XID, &h.RID,
563 &dt, &h.URL, &aud, &h.Noise)
564 if err != nil {
565 log.Printf("error scanning xonk: %s", err)
566 return nil
567 }
568 if name != "" && h.Username != name {
569 log.Printf("user xonk mismatch")
570 return nil
571 }
572 h.Date, _ = time.Parse(dbtimeformat, dt)
573 h.Audience = strings.Split(aud, " ")
574 donksforhonks([]*Honk{&h})
575 return &h
576}
577
578func gethonks() []*Honk {
579 rows, err := stmtHonks.Query()
580 return getsomehonks(rows, err)
581}
582func gethonksbyuser(name string) []*Honk {
583 rows, err := stmtUserHonks.Query(name)
584 return getsomehonks(rows, err)
585}
586func gethonksforuser(userid int64) []*Honk {
587 dt := time.Now().UTC().Add(-2 * 24 * time.Hour)
588 rows, err := stmtHonksForUser.Query(userid, dt.Format(dbtimeformat))
589 return getsomehonks(rows, err)
590}
591func gethonksbyhonker(userid int64, honker string) []*Honk {
592 rows, err := stmtHonksByHonker.Query(userid, honker)
593 return getsomehonks(rows, err)
594}
595
596func getsomehonks(rows *sql.Rows, err error) []*Honk {
597 if err != nil {
598 log.Printf("error querying honks: %s", err)
599 return nil
600 }
601 defer rows.Close()
602 var honks []*Honk
603 for rows.Next() {
604 var h Honk
605 var dt, aud string
606 err = rows.Scan(&h.ID, &h.UserID, &h.Username, &h.What, &h.Honker, &h.XID, &h.RID,
607 &dt, &h.URL, &aud, &h.Noise)
608 if err != nil {
609 log.Printf("error scanning honks: %s", err)
610 return nil
611 }
612 h.Date, _ = time.Parse(dbtimeformat, dt)
613 h.Audience = strings.Split(aud, " ")
614 honks = append(honks, &h)
615 }
616 rows.Close()
617 donksforhonks(honks)
618 return honks
619}
620
621func donksforhonks(honks []*Honk) {
622 db := opendatabase()
623 var ids []string
624 hmap := make(map[int64]*Honk)
625 for _, h := range honks {
626 if h.What == "zonk" {
627 continue
628 }
629 ids = append(ids, fmt.Sprintf("%d", h.ID))
630 hmap[h.ID] = h
631 }
632 q := fmt.Sprintf("select honkid, donks.fileid, xid, name, url, media from donks join files on donks.fileid = files.fileid where honkid in (%s)", strings.Join(ids, ","))
633 rows, err := db.Query(q)
634 if err != nil {
635 log.Printf("error querying donks: %s", err)
636 return
637 }
638 defer rows.Close()
639 for rows.Next() {
640 var hid int64
641 var d Donk
642 err = rows.Scan(&hid, &d.FileID, &d.XID, &d.Name, &d.URL, &d.Media)
643 if err != nil {
644 log.Printf("error scanning donk: %s", err)
645 continue
646 }
647 h := hmap[hid]
648 h.Donks = append(h.Donks, &d)
649 }
650}
651
652func savebonk(w http.ResponseWriter, r *http.Request) {
653 xid := r.FormValue("xid")
654
655 log.Printf("bonking %s", xid)
656
657 xonk := getxonk("", xid)
658 if xonk == nil {
659 return
660 }
661 if xonk.Honker == "" {
662 xonk.XID = fmt.Sprintf("https://%s/u/%s/h/%s", serverName, xonk.Username, xonk.XID)
663 }
664
665 userinfo := GetUserInfo(r)
666
667 dt := time.Now().UTC()
668 bonk := Honk{
669 UserID: userinfo.UserID,
670 Username: userinfo.Username,
671 Honker: xonk.Honker,
672 What: "bonk",
673 XID: xonk.XID,
674 Date: dt,
675 Noise: xonk.Noise,
676 Donks: xonk.Donks,
677 Audience: oneofakind(prepend(thewholeworld, xonk.Audience)),
678 }
679
680 aud := strings.Join(bonk.Audience, " ")
681 res, err := stmtSaveHonk.Exec(userinfo.UserID, "bonk", "", xid, "",
682 dt.Format(dbtimeformat), "", aud, bonk.Noise)
683 if err != nil {
684 log.Printf("error saving bonk: %s", err)
685 return
686 }
687 bonk.ID, _ = res.LastInsertId()
688 for _, d := range bonk.Donks {
689 _, err = stmtSaveDonk.Exec(bonk.ID, d.FileID)
690 if err != nil {
691 log.Printf("err saving donk: %s", err)
692 return
693 }
694 }
695
696 user, _ := butwhatabout(userinfo.Username)
697
698 go honkworldwide(user, &bonk)
699
700}
701
702func zonkit(w http.ResponseWriter, r *http.Request) {
703 xid := r.FormValue("xid")
704
705 log.Printf("zonking %s", xid)
706 userinfo := GetUserInfo(r)
707 stmtZonkIt.Exec(userinfo.UserID, xid)
708}
709
710func savehonk(w http.ResponseWriter, r *http.Request) {
711 rid := r.FormValue("rid")
712 noise := r.FormValue("noise")
713
714 userinfo := GetUserInfo(r)
715
716 dt := time.Now().UTC()
717 xid := xfiltrate()
718 what := "honk"
719 if rid != "" {
720 what = "tonk"
721 }
722 honk := Honk{
723 UserID: userinfo.UserID,
724 Username: userinfo.Username,
725 What: "honk",
726 XID: xid,
727 RID: rid,
728 Date: dt,
729 }
730 if noise[0] == '@' {
731 honk.Audience = append(grapevine(noise), thewholeworld)
732 } else {
733 honk.Audience = prepend(thewholeworld, grapevine(noise))
734 }
735 if rid != "" {
736 xonk := getxonk("", rid)
737 if xonk != nil {
738 honk.Audience = append(honk.Audience, xonk.Audience...)
739 } else {
740 xonkaud := whosthere(rid)
741 honk.Audience = append(honk.Audience, xonkaud...)
742 }
743 }
744 honk.Audience = oneofakind(honk.Audience)
745 noise = obfusbreak(noise)
746 honk.Noise = noise
747
748 file, filehdr, err := r.FormFile("donk")
749 if err == nil {
750 var buf bytes.Buffer
751 io.Copy(&buf, file)
752 file.Close()
753 data := buf.Bytes()
754 xid := xfiltrate()
755 var media, name string
756 img, format, err := image.Decode(&buf)
757 if err == nil {
758 data, format, err = vacuumwrap(img, format)
759 if err != nil {
760 log.Printf("can't vacuum image: %s", err)
761 return
762 }
763 media = "image/" + format
764 if format == "jpeg" {
765 format = "jpg"
766 }
767 name = xid + "." + format
768 xid = name
769 } else {
770 maxsize := 100000
771 if len(data) > maxsize {
772 log.Printf("bad image: %s too much text: %d", err, len(data))
773 http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
774 return
775 }
776 for i := 0; i < len(data); i++ {
777 if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
778 log.Printf("bad image: %s not text: %d", err, data[i])
779 http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
780 return
781 }
782 }
783 media = "text/plain"
784 name = filehdr.Filename
785 if name == "" {
786 name = xid + ".txt"
787 }
788 xid += ".txt"
789 }
790 url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
791 res, err := stmtSaveFile.Exec(xid, name, url, media, data)
792 if err != nil {
793 log.Printf("unable to save image: %s", err)
794 return
795 }
796 var d Donk
797 d.FileID, _ = res.LastInsertId()
798 d.XID = name
799 d.Name = name
800 d.Media = media
801 d.URL = url
802 honk.Donks = append(honk.Donks, &d)
803 }
804 herd := herdofemus(honk.Noise)
805 for _, e := range herd {
806 donk := savedonk(e.ID, e.Name, "image/png")
807 if donk != nil {
808 honk.Donks = append(honk.Donks, donk)
809 }
810 }
811
812 aud := strings.Join(honk.Audience, " ")
813 res, err := stmtSaveHonk.Exec(userinfo.UserID, what, "", xid, rid,
814 dt.Format(dbtimeformat), "", aud, noise)
815 if err != nil {
816 log.Printf("error saving honk: %s", err)
817 return
818 }
819 honk.ID, _ = res.LastInsertId()
820 for _, d := range honk.Donks {
821 _, err = stmtSaveDonk.Exec(honk.ID, d.FileID)
822 if err != nil {
823 log.Printf("err saving donk: %s", err)
824 return
825 }
826 }
827
828 user, _ := butwhatabout(userinfo.Username)
829
830 go honkworldwide(user, &honk)
831
832 http.Redirect(w, r, "/", http.StatusSeeOther)
833}
834
835func showhonkers(w http.ResponseWriter, r *http.Request) {
836 userinfo := GetUserInfo(r)
837 templinfo := getInfo(r)
838 templinfo["Honkers"] = gethonkers(userinfo.UserID)
839 templinfo["HonkerCSRF"] = GetCSRF("savehonker", r)
840 err := readviews.ExecuteTemplate(w, "honkers.html", templinfo)
841 if err != nil {
842 log.Print(err)
843 }
844}
845
846var handfull = make(map[string]string)
847var handlock sync.Mutex
848
849func gofish(name string) string {
850 if name[0] == '@' {
851 name = name[1:]
852 }
853 m := strings.Split(name, "@")
854 if len(m) != 2 {
855 log.Printf("bad fish name: %s", name)
856 return ""
857 }
858 handlock.Lock()
859 ref, ok := handfull[name]
860 handlock.Unlock()
861 if ok {
862 return ref
863 }
864 j, err := GetJunk(fmt.Sprintf("https://%s/.well-known/webfinger?resource=acct:%s", m[1], name))
865 handlock.Lock()
866 defer handlock.Unlock()
867 if err != nil {
868 log.Printf("failed to go fish %s: %s", name, err)
869 handfull[name] = ""
870 return ""
871 }
872 links, _ := jsongetarray(j, "links")
873 for _, l := range links {
874 href, _ := jsongetstring(l, "href")
875 rel, _ := jsongetstring(l, "rel")
876 t, _ := jsongetstring(l, "type")
877 if rel == "self" && friendorfoe(t) {
878 handfull[name] = href
879 return href
880 }
881 }
882 handfull[name] = ""
883 return ""
884}
885
886func savehonker(w http.ResponseWriter, r *http.Request) {
887 name := r.FormValue("name")
888 url := r.FormValue("url")
889 peep := r.FormValue("peep")
890 flavor := "presub"
891 if peep == "peep" {
892 flavor = "peep"
893 }
894
895 if url == "" {
896 return
897 }
898 if url[0] == '@' {
899 url = gofish(url)
900 }
901 if url == "" {
902 return
903 }
904
905 u := GetUserInfo(r)
906 db := opendatabase()
907 _, err := db.Exec("insert into honkers (userid, name, xid, flavor) values (?, ?, ?, ?)",
908 u.UserID, name, url, flavor)
909 if err != nil {
910 log.Print(err)
911 }
912 if flavor == "presub" {
913 user, _ := butwhatabout(u.Username)
914 go subsub(user, url)
915 }
916 http.Redirect(w, r, "/honkers", http.StatusSeeOther)
917}
918
919func somedays() string {
920 secs := 432000 + notrand.Int63n(432000)
921 return fmt.Sprintf("%d", secs)
922}
923
924func avatate(w http.ResponseWriter, r *http.Request) {
925 n := r.FormValue("a")
926 a := avatar(n)
927 w.Header().Set("Cache-Control", "max-age="+somedays())
928 w.Write(a)
929}
930
931func servecss(w http.ResponseWriter, r *http.Request) {
932 w.Header().Set("Cache-Control", "max-age=7776000")
933 http.ServeFile(w, r, "views"+r.URL.Path)
934}
935func servehtml(w http.ResponseWriter, r *http.Request) {
936 templinfo := getInfo(r)
937 err := readviews.ExecuteTemplate(w, r.URL.Path[1:]+".html", templinfo)
938 if err != nil {
939 log.Print(err)
940 }
941}
942func serveemu(w http.ResponseWriter, r *http.Request) {
943 xid := mux.Vars(r)["xid"]
944 w.Header().Set("Cache-Control", "max-age="+somedays())
945 http.ServeFile(w, r, "emus/"+xid)
946}
947
948func servefile(w http.ResponseWriter, r *http.Request) {
949 xid := mux.Vars(r)["xid"]
950 row := stmtFileData.QueryRow(xid)
951 var media string
952 var data []byte
953 err := row.Scan(&media, &data)
954 if err != nil {
955 log.Printf("error loading file: %s", err)
956 http.NotFound(w, r)
957 return
958 }
959 w.Header().Set("Content-Type", media)
960 w.Header().Set("Cache-Control", "max-age="+somedays())
961 w.Write(data)
962}
963
964func serve() {
965 db := opendatabase()
966 LoginInit(db)
967
968 listener, err := openListener()
969 if err != nil {
970 log.Fatal(err)
971 }
972 go redeliverator()
973
974 debug := false
975 getconfig("debug", &debug)
976 readviews = ParseTemplates(debug,
977 "views/homepage.html",
978 "views/honkpage.html",
979 "views/honkers.html",
980 "views/honkform.html",
981 "views/honk.html",
982 "views/login.html",
983 "views/header.html",
984 )
985 if !debug {
986 s := "views/style.css"
987 savedstyleparams[s] = getstyleparam(s)
988 s = "views/local.css"
989 savedstyleparams[s] = getstyleparam(s)
990 }
991
992 mux := mux.NewRouter()
993 mux.Use(LoginChecker)
994
995 posters := mux.Methods("POST").Subrouter()
996 getters := mux.Methods("GET").Subrouter()
997
998 getters.HandleFunc("/", homepage)
999 getters.HandleFunc("/rss", showrss)
1000 getters.HandleFunc("/u/{name:[[:alnum:]]+}", viewuser)
1001 getters.HandleFunc("/u/{name:[[:alnum:]]+}/h/{xid:[[:alnum:]]+}", viewhonk)
1002 getters.HandleFunc("/u/{name:[[:alnum:]]+}/rss", showrss)
1003 posters.HandleFunc("/u/{name:[[:alnum:]]+}/inbox", inbox)
1004 getters.HandleFunc("/u/{name:[[:alnum:]]+}/outbox", outbox)
1005 getters.HandleFunc("/a", avatate)
1006 getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
1007 getters.HandleFunc("/emu/{xid:[[:alnum:]_.]+}", serveemu)
1008 getters.HandleFunc("/h/{name:[[:alnum:]]+}", viewhonker)
1009 getters.HandleFunc("/.well-known/webfinger", fingerlicker)
1010
1011 getters.HandleFunc("/style.css", servecss)
1012 getters.HandleFunc("/local.css", servecss)
1013 getters.HandleFunc("/login", servehtml)
1014 posters.HandleFunc("/dologin", dologin)
1015 getters.HandleFunc("/logout", dologout)
1016
1017 loggedin := mux.NewRoute().Subrouter()
1018 loggedin.Use(LoginRequired)
1019 loggedin.Handle("/honk", CSRFWrap("honkhonk", http.HandlerFunc(savehonk)))
1020 loggedin.Handle("/bonk", CSRFWrap("honkhonk", http.HandlerFunc(savebonk)))
1021 loggedin.Handle("/zonkit", CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
1022 loggedin.Handle("/saveuser", CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
1023 loggedin.HandleFunc("/honkers", showhonkers)
1024 loggedin.Handle("/savehonker", CSRFWrap("savehonker", http.HandlerFunc(savehonker)))
1025
1026 err = http.Serve(listener, mux)
1027 if err != nil {
1028 log.Fatal(err)
1029 }
1030}
1031
1032var stmtHonkers, stmtDubbers, stmtOneXonk, stmtHonks, stmtUserHonks *sql.Stmt
1033var stmtHonksForUser, stmtDeleteHonk, stmtSaveDub *sql.Stmt
1034var stmtHonksByHonker, stmtSaveHonk, stmtFileData, stmtWhatAbout *sql.Stmt
1035var stmtFindXonk, stmtSaveDonk, stmtFindFile, stmtSaveFile *sql.Stmt
1036var stmtAddDoover, stmtGetDoovers, stmtLoadDoover, stmtZapDoover *sql.Stmt
1037var stmtZonkIt *sql.Stmt
1038
1039func preparetodie(db *sql.DB, s string) *sql.Stmt {
1040 stmt, err := db.Prepare(s)
1041 if err != nil {
1042 log.Fatalf("error %s: %s", err, s)
1043 }
1044 return stmt
1045}
1046
1047func prepareStatements(db *sql.DB) {
1048 stmtHonkers = preparetodie(db, "select honkerid, userid, name, xid, flavor from honkers where userid = ? and flavor = 'sub' or flavor = 'peep'")
1049 stmtDubbers = preparetodie(db, "select honkerid, userid, name, xid, flavor from honkers where userid = ? and flavor = 'dub'")
1050 stmtOneXonk = preparetodie(db, "select honkid, honks.userid, users.username, what, honker, xid, rid, dt, url, audience, noise from honks join users on honks.userid = users.userid where xid = ?")
1051 stmtHonks = preparetodie(db, "select honkid, honks.userid, users.username, what, honker, xid, rid, dt, url, audience, noise from honks join users on honks.userid = users.userid where honker = '' order by honkid desc limit 50")
1052 stmtUserHonks = preparetodie(db, "select honkid, honks.userid, username, what, honker, xid, rid, dt, url, audience, noise from honks join users on honks.userid = users.userid where honker = '' and username = ? order by honkid desc limit 50")
1053 stmtHonksForUser = preparetodie(db, "select honkid, honks.userid, users.username, what, honker, xid, rid, dt, url, audience, noise from honks join users on honks.userid = users.userid where honks.userid = ? and dt > ? order by honkid desc limit 250")
1054 stmtHonksByHonker = preparetodie(db, "select honkid, honks.userid, users.username, what, honker, honks.xid, rid, dt, url, audience, noise from honks join users on honks.userid = users.userid join honkers on honkers.xid = honks.honker where honks.userid = ? and honkers.name = ? order by honkid desc limit 50")
1055 stmtSaveHonk = preparetodie(db, "insert into honks (userid, what, honker, xid, rid, dt, url, audience, noise) values (?, ?, ?, ?, ?, ?, ?, ?, ?)")
1056 stmtFileData = preparetodie(db, "select media, content from files where xid = ?")
1057 stmtFindXonk = preparetodie(db, "select honkid from honks where userid = ? and xid = ?")
1058 stmtSaveDonk = preparetodie(db, "insert into donks (honkid, fileid) values (?, ?)")
1059 stmtDeleteHonk = preparetodie(db, "update honks set what = 'zonk' where xid = ? and honker = ?")
1060 stmtFindFile = preparetodie(db, "select fileid from files where url = ?")
1061 stmtSaveFile = preparetodie(db, "insert into files (xid, name, url, media, content) values (?, ?, ?, ?, ?)")
1062 stmtWhatAbout = preparetodie(db, "select userid, username, displayname, about, pubkey from users where username = ?")
1063 stmtSaveDub = preparetodie(db, "insert into honkers (userid, name, xid, flavor) values (?, ?, ?, ?)")
1064 stmtAddDoover = preparetodie(db, "insert into doovers (dt, tries, username, rcpt, msg) values (?, ?, ?, ?, ?)")
1065 stmtGetDoovers = preparetodie(db, "select dooverid, dt from doovers")
1066 stmtLoadDoover = preparetodie(db, "select tries, username, rcpt, msg from doovers where dooverid = ?")
1067 stmtZapDoover = preparetodie(db, "delete from doovers where dooverid = ?")
1068 stmtZonkIt = preparetodie(db, "update honks set what = 'zonk' where userid = ? and xid = ?")
1069}
1070
1071func ElaborateUnitTests() {
1072}
1073
1074func finishusersetup() error {
1075 db := opendatabase()
1076 k, err := rsa.GenerateKey(rand.Reader, 2048)
1077 if err != nil {
1078 return err
1079 }
1080 pubkey, err := zem(&k.PublicKey)
1081 if err != nil {
1082 return err
1083 }
1084 seckey, err := zem(k)
1085 if err != nil {
1086 return err
1087 }
1088 _, err = db.Exec("update users set displayname = username, about = ?, pubkey = ?, seckey = ? where userid = 1", "what about me?", pubkey, seckey)
1089 if err != nil {
1090 return err
1091 }
1092 return nil
1093}
1094
1095func main() {
1096 cmd := "run"
1097 if len(os.Args) > 1 {
1098 cmd = os.Args[1]
1099 }
1100 switch cmd {
1101 case "init":
1102 initdb()
1103 case "upgrade":
1104 upgradedb()
1105 }
1106 db := opendatabase()
1107 dbversion := 0
1108 getconfig("dbversion", &dbversion)
1109 if dbversion != myVersion {
1110 log.Fatal("incorrect database version. run upgrade.")
1111 }
1112 getconfig("servername", &serverName)
1113 prepareStatements(db)
1114 switch cmd {
1115 case "ping":
1116 if len(os.Args) < 4 {
1117 fmt.Printf("usage: honk ping from to\n")
1118 return
1119 }
1120 name := os.Args[2]
1121 targ := os.Args[3]
1122 user, err := butwhatabout(name)
1123 if err != nil {
1124 log.Printf("unknown user")
1125 return
1126 }
1127 ping(user, targ)
1128 case "peep":
1129 peeppeep()
1130 case "run":
1131 serve()
1132 case "test":
1133 ElaborateUnitTests()
1134 default:
1135 log.Fatal("unknown command")
1136 }
1137}