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	"database/sql"
  21	"fmt"
  22	"html/template"
  23	"io"
  24	notrand "math/rand"
  25	"mime/multipart"
  26	"net/http"
  27	"net/url"
  28	"os"
  29	"os/signal"
  30	"path"
  31	"regexp"
  32	"sort"
  33	"strconv"
  34	"strings"
  35	"syscall"
  36	"time"
  37	"unicode/utf8"
  38
  39	"github.com/gorilla/mux"
  40	"humungus.tedunangst.com/r/webs/cache"
  41	"humungus.tedunangst.com/r/webs/httpsig"
  42	"humungus.tedunangst.com/r/webs/junk"
  43	"humungus.tedunangst.com/r/webs/login"
  44	"humungus.tedunangst.com/r/webs/rss"
  45	"humungus.tedunangst.com/r/webs/templates"
  46)
  47
  48var readviews *templates.Template
  49
  50var userSep = "u"
  51var honkSep = "h"
  52
  53var develMode = false
  54
  55var allemus []Emu
  56
  57func getuserstyle(u *login.UserInfo) template.HTMLAttr {
  58	if u == nil {
  59		return ""
  60	}
  61	user, _ := butwhatabout(u.Username)
  62	class := template.HTMLAttr("")
  63	if user.Options.SkinnyCSS {
  64		class += `class="skinny"`
  65	}
  66	return class
  67}
  68
  69func getmaplink(u *login.UserInfo) string {
  70	if u == nil {
  71		return "osm"
  72	}
  73	user, _ := butwhatabout(u.Username)
  74	ml := user.Options.MapLink
  75	if ml == "" {
  76		ml = "osm"
  77	}
  78	return ml
  79}
  80
  81func getInfo(r *http.Request) map[string]interface{} {
  82	templinfo := make(map[string]interface{})
  83	templinfo["StyleParam"] = getassetparam(viewDir + "/views/style.css")
  84	templinfo["LocalStyleParam"] = getassetparam(dataDir + "/views/local.css")
  85	templinfo["JSParam"] = getassetparam(viewDir + "/views/honkpage.js")
  86	templinfo["MiscJSParam"] = getassetparam(viewDir + "/views/misc.js")
  87	templinfo["LocalJSParam"] = getassetparam(dataDir + "/views/local.js")
  88	templinfo["ServerName"] = serverName
  89	templinfo["IconName"] = iconName
  90	templinfo["UserSep"] = userSep
  91	if u := login.GetUserInfo(r); u != nil {
  92		templinfo["UserInfo"], _ = butwhatabout(u.Username)
  93		templinfo["UserStyle"] = getuserstyle(u)
  94		var combos []string
  95		combocache.Get(u.UserID, &combos)
  96		templinfo["Combos"] = combos
  97	}
  98	return templinfo
  99}
 100
 101func homepage(w http.ResponseWriter, r *http.Request) {
 102	templinfo := getInfo(r)
 103	u := login.GetUserInfo(r)
 104	var honks []*Honk
 105	var userid int64 = -1
 106
 107	templinfo["ServerMessage"] = serverMsg
 108	if u == nil || r.URL.Path == "/front" {
 109		switch r.URL.Path {
 110		case "/events":
 111			honks = geteventhonks(userid)
 112			templinfo["ServerMessage"] = "some recent and upcoming events"
 113		default:
 114			templinfo["ShowRSS"] = true
 115			honks = getpublichonks()
 116		}
 117	} else {
 118		userid = u.UserID
 119		switch r.URL.Path {
 120		case "/atme":
 121			templinfo["ServerMessage"] = "at me!"
 122			templinfo["PageName"] = "atme"
 123			honks = gethonksforme(userid, 0)
 124			honks = osmosis(honks, userid, false)
 125			menewnone(userid)
 126			templinfo["UserInfo"], _ = butwhatabout(u.Username)
 127		case "/longago":
 128			templinfo["ServerMessage"] = "long ago and far away!"
 129			templinfo["PageName"] = "longago"
 130			honks = gethonksfromlongago(userid, 0)
 131			honks = osmosis(honks, userid, false)
 132		case "/events":
 133			templinfo["ServerMessage"] = "some recent and upcoming events"
 134			templinfo["PageName"] = "events"
 135			honks = geteventhonks(userid)
 136			honks = osmosis(honks, userid, true)
 137		case "/first":
 138			templinfo["PageName"] = "first"
 139			honks = gethonksforuserfirstclass(userid, 0)
 140			honks = osmosis(honks, userid, true)
 141		case "/saved":
 142			templinfo["ServerMessage"] = "saved honks"
 143			templinfo["PageName"] = "saved"
 144			honks = getsavedhonks(userid, 0)
 145		default:
 146			templinfo["PageName"] = "home"
 147			honks = gethonksforuser(userid, 0)
 148			honks = osmosis(honks, userid, true)
 149		}
 150		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 151	}
 152
 153	honkpage(w, u, honks, templinfo)
 154}
 155
 156func showemus(w http.ResponseWriter, r *http.Request) {
 157	templinfo := getInfo(r)
 158	templinfo["Emus"] = allemus
 159	err := readviews.Execute(w, "emus.html", templinfo)
 160	if err != nil {
 161		elog.Print(err)
 162	}
 163}
 164
 165func showfunzone(w http.ResponseWriter, r *http.Request) {
 166	var emunames, memenames []string
 167	emuext := make(map[string]string)
 168	dir, err := os.Open(dataDir + "/emus")
 169	if err == nil {
 170		emunames, _ = dir.Readdirnames(0)
 171		dir.Close()
 172	}
 173	for i, e := range emunames {
 174		if len(e) > 4 {
 175			emunames[i] = e[:len(e)-4]
 176			emuext[emunames[i]] = e[len(e)-4:]
 177		}
 178	}
 179	dir, err = os.Open(dataDir + "/memes")
 180	if err == nil {
 181		memenames, _ = dir.Readdirnames(0)
 182		dir.Close()
 183	}
 184	sort.Strings(emunames)
 185	sort.Strings(memenames)
 186	templinfo := getInfo(r)
 187	templinfo["Emus"] = emunames
 188	templinfo["Emuext"] = emuext
 189	templinfo["Memes"] = memenames
 190	err = readviews.Execute(w, "funzone.html", templinfo)
 191	if err != nil {
 192		elog.Print(err)
 193	}
 194}
 195
 196func showrss(w http.ResponseWriter, r *http.Request) {
 197	name := mux.Vars(r)["name"]
 198
 199	var honks []*Honk
 200	if name != "" {
 201		honks = gethonksbyuser(name, false, 0)
 202	} else {
 203		honks = getpublichonks()
 204	}
 205	reverbolate(-1, honks)
 206
 207	home := fmt.Sprintf("https://%s/", serverName)
 208	base := home
 209	if name != "" {
 210		home += "u/" + name
 211		name += " "
 212	}
 213	feed := rss.Feed{
 214		Title:       name + "honk",
 215		Link:        home,
 216		Description: name + "honk rss",
 217		Image: &rss.Image{
 218			URL:   base + "icon.png",
 219			Title: name + "honk rss",
 220			Link:  home,
 221		},
 222	}
 223	var modtime time.Time
 224	for _, honk := range honks {
 225		if !firstclass(honk) {
 226			continue
 227		}
 228		desc := string(honk.HTML)
 229		if t := honk.Time; t != nil {
 230			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 231			if t.Duration != 0 {
 232				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 233			}
 234		}
 235		if p := honk.Place; p != nil {
 236			desc += string(templates.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 237				p.Url, p.Name, p.Latitude, p.Longitude))
 238		}
 239		for _, d := range honk.Donks {
 240			desc += string(templates.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 241				d.URL, d.Desc))
 242			if strings.HasPrefix(d.Media, "image") {
 243				desc += string(templates.Sprintf(`<img src="%s">`, d.URL))
 244			}
 245		}
 246
 247		feed.Items = append(feed.Items, &rss.Item{
 248			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 249			Description: rss.CData{Data: desc},
 250			Link:        honk.URL,
 251			PubDate:     honk.Date.Format(time.RFC1123),
 252			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 253		})
 254		if honk.Date.After(modtime) {
 255			modtime = honk.Date
 256		}
 257	}
 258	if !develMode {
 259		w.Header().Set("Cache-Control", "max-age=300")
 260		w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 261	}
 262
 263	err := feed.Write(w)
 264	if err != nil {
 265		elog.Printf("error writing rss: %s", err)
 266	}
 267}
 268
 269func crappola(j junk.Junk) bool {
 270	t, _ := j.GetString("type")
 271	a, _ := j.GetString("actor")
 272	o, _ := j.GetString("object")
 273	if t == "Delete" && a == o {
 274		dlog.Printf("crappola from %s", a)
 275		return true
 276	}
 277	return false
 278}
 279
 280func ping(user *WhatAbout, who string) {
 281	if targ := fullname(who, user.ID); targ != "" {
 282		who = targ
 283	}
 284	if !strings.HasPrefix(who, "https:") {
 285		who = gofish(who)
 286	}
 287	if who == "" {
 288		ilog.Printf("nobody to ping!")
 289		return
 290	}
 291	var box *Box
 292	ok := boxofboxes.Get(who, &box)
 293	if !ok {
 294		ilog.Printf("no inbox to ping %s", who)
 295		return
 296	}
 297	ilog.Printf("sending ping to %s", box.In)
 298	j := junk.New()
 299	j["@context"] = itiswhatitis
 300	j["type"] = "Ping"
 301	j["id"] = user.URL + "/ping/" + xfiltrate()
 302	j["actor"] = user.URL
 303	j["to"] = who
 304	ki := ziggy(user.ID)
 305	if ki == nil {
 306		return
 307	}
 308	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 309	if err != nil {
 310		elog.Printf("can't send ping: %s", err)
 311		return
 312	}
 313	ilog.Printf("sent ping to %s: %s", who, j["id"])
 314}
 315
 316func pong(user *WhatAbout, who string, obj string) {
 317	var box *Box
 318	ok := boxofboxes.Get(who, &box)
 319	if !ok {
 320		ilog.Printf("no inbox to pong %s", who)
 321		return
 322	}
 323	j := junk.New()
 324	j["@context"] = itiswhatitis
 325	j["type"] = "Pong"
 326	j["id"] = user.URL + "/pong/" + xfiltrate()
 327	j["actor"] = user.URL
 328	j["to"] = who
 329	j["object"] = obj
 330	ki := ziggy(user.ID)
 331	if ki == nil {
 332		return
 333	}
 334	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 335	if err != nil {
 336		elog.Printf("can't send pong: %s", err)
 337		return
 338	}
 339}
 340
 341func inbox(w http.ResponseWriter, r *http.Request) {
 342	name := mux.Vars(r)["name"]
 343	user, err := butwhatabout(name)
 344	if err != nil {
 345		http.NotFound(w, r)
 346		return
 347	}
 348	if stealthmode(user.ID, r) {
 349		http.NotFound(w, r)
 350		return
 351	}
 352	var buf bytes.Buffer
 353	limiter := io.LimitReader(r.Body, 1*1024*1024)
 354	io.Copy(&buf, limiter)
 355	payload := buf.Bytes()
 356	j, err := junk.FromBytes(payload)
 357	if err != nil {
 358		ilog.Printf("bad payload: %s", err)
 359		ilog.Writer().Write(payload)
 360		ilog.Writer().Write([]byte{'\n'})
 361		return
 362	}
 363
 364	if crappola(j) {
 365		return
 366	}
 367	what, _ := j.GetString("type")
 368	obj, _ := j.GetString("object")
 369	if what == "Like" || what == "Dislike" || (what == "EmojiReact" && originate(obj) != serverName) {
 370		return
 371	}
 372	who, _ := j.GetString("actor")
 373	if rejectactor(user.ID, who) {
 374		return
 375	}
 376
 377	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 378	if err != nil && keyname != "" {
 379		savingthrow(keyname)
 380		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 381	}
 382	if err != nil {
 383		ilog.Printf("inbox message failed signature for %s from %s: %s", keyname, r.Header.Get("X-Forwarded-For"), err)
 384		if keyname != "" {
 385			ilog.Printf("bad signature from %s", keyname)
 386		}
 387		http.Error(w, "what did you call me?", http.StatusTeapot)
 388		return
 389	}
 390	origin := keymatch(keyname, who)
 391	if origin == "" {
 392		ilog.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 393		return
 394	}
 395
 396	switch what {
 397	case "Ping":
 398		id, _ := j.GetString("id")
 399		ilog.Printf("ping from %s: %s", who, id)
 400		pong(user, who, id)
 401	case "Pong":
 402		ilog.Printf("pong from %s: %s", who, obj)
 403	case "Follow":
 404		if obj != user.URL {
 405			ilog.Printf("can't follow %s", obj)
 406			return
 407		}
 408		followme(user, who, who, j)
 409	case "Accept":
 410		followyou2(user, j)
 411	case "Reject":
 412		nofollowyou2(user, j)
 413	case "Update":
 414		obj, ok := j.GetMap("object")
 415		if ok {
 416			what, _ := obj.GetString("type")
 417			switch what {
 418			case "Service":
 419				fallthrough
 420			case "Person":
 421				return
 422			case "Question":
 423				return
 424			}
 425		}
 426		go xonksaver(user, j, origin)
 427	case "Undo":
 428		obj, ok := j.GetMap("object")
 429		if !ok {
 430			folxid, ok := j.GetString("object")
 431			if ok && originate(folxid) == origin {
 432				unfollowme(user, "", "", j)
 433			}
 434			return
 435		}
 436		what, _ := obj.GetString("type")
 437		switch what {
 438		case "Follow":
 439			unfollowme(user, who, who, j)
 440		case "Announce":
 441			xid, _ := obj.GetString("object")
 442			dlog.Printf("undo announce: %s", xid)
 443		case "Like":
 444		default:
 445			ilog.Printf("unknown undo: %s", what)
 446		}
 447	case "EmojiReact":
 448		obj, ok := j.GetString("object")
 449		if ok {
 450			content, _ := j.GetString("content")
 451			addreaction(user, obj, who, content)
 452		}
 453	default:
 454		go saveandcheck(user, j, origin)
 455	}
 456}
 457
 458func saveandcheck(user *WhatAbout, j junk.Junk, origin string) {
 459	xonk := xonksaver(user, j, origin)
 460	if xonk == nil {
 461		return
 462	}
 463	if sname := shortname(user.ID, xonk.Honker); sname == "" {
 464		dlog.Printf("received unexpected activity from %s", xonk.Honker)
 465		if xonk.Whofore == 0 {
 466			dlog.Printf("it's not even for me!")
 467		}
 468	}
 469}
 470
 471func serverinbox(w http.ResponseWriter, r *http.Request) {
 472	user := getserveruser()
 473	if stealthmode(user.ID, r) {
 474		http.NotFound(w, r)
 475		return
 476	}
 477	var buf bytes.Buffer
 478	io.Copy(&buf, r.Body)
 479	payload := buf.Bytes()
 480	j, err := junk.FromBytes(payload)
 481	if err != nil {
 482		ilog.Printf("bad payload: %s", err)
 483		ilog.Writer().Write(payload)
 484		ilog.Writer().Write([]byte{'\n'})
 485		return
 486	}
 487	if crappola(j) {
 488		return
 489	}
 490	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 491	if err != nil && keyname != "" {
 492		savingthrow(keyname)
 493		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 494	}
 495	if err != nil {
 496		ilog.Printf("inbox message failed signature for %s from %s: %s", keyname, r.Header.Get("X-Forwarded-For"), err)
 497		if keyname != "" {
 498			ilog.Printf("bad signature from %s", keyname)
 499		}
 500		http.Error(w, "what did you call me?", http.StatusTeapot)
 501		return
 502	}
 503	who, _ := j.GetString("actor")
 504	origin := keymatch(keyname, who)
 505	if origin == "" {
 506		ilog.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 507		return
 508	}
 509	if rejectactor(user.ID, who) {
 510		return
 511	}
 512	re_ont := regexp.MustCompile("https://" + serverName + "/o/([\\pL[:digit:]]+)")
 513	what, _ := j.GetString("type")
 514	dlog.Printf("server got a %s", what)
 515	switch what {
 516	case "Follow":
 517		obj, _ := j.GetString("object")
 518		if obj == user.URL {
 519			ilog.Printf("can't follow the server!")
 520			return
 521		}
 522		m := re_ont.FindStringSubmatch(obj)
 523		if len(m) != 2 {
 524			ilog.Printf("not sure how to handle this")
 525			return
 526		}
 527		ont := "#" + m[1]
 528
 529		followme(user, who, ont, j)
 530	case "Undo":
 531		obj, ok := j.GetMap("object")
 532		if !ok {
 533			ilog.Printf("unknown undo no object")
 534			return
 535		}
 536		what, _ := obj.GetString("type")
 537		if what != "Follow" {
 538			ilog.Printf("unknown undo: %s", what)
 539			return
 540		}
 541		targ, _ := obj.GetString("object")
 542		m := re_ont.FindStringSubmatch(targ)
 543		if len(m) != 2 {
 544			ilog.Printf("not sure how to handle this")
 545			return
 546		}
 547		ont := "#" + m[1]
 548		unfollowme(user, who, ont, j)
 549	default:
 550		ilog.Printf("unhandled server activity: %s", what)
 551		dumpactivity(j)
 552	}
 553}
 554
 555func serveractor(w http.ResponseWriter, r *http.Request) {
 556	user := getserveruser()
 557	if stealthmode(user.ID, r) {
 558		http.NotFound(w, r)
 559		return
 560	}
 561	j := junkuser(user)
 562	j.Write(w)
 563}
 564
 565func ximport(w http.ResponseWriter, r *http.Request) {
 566	u := login.GetUserInfo(r)
 567	xid := strings.TrimSpace(r.FormValue("q"))
 568	xonk := getxonk(u.UserID, xid)
 569	if xonk == nil {
 570		p, _ := investigate(xid)
 571		if p != nil {
 572			xid = p.XID
 573		}
 574		j, err := GetJunk(u.UserID, xid)
 575		if err != nil {
 576			http.Error(w, "error getting external object", http.StatusInternalServerError)
 577			ilog.Printf("error getting external object: %s", err)
 578			return
 579		}
 580		allinjest(originate(xid), j)
 581		dlog.Printf("importing %s", xid)
 582		user, _ := butwhatabout(u.Username)
 583
 584		info, _ := somethingabout(j)
 585		if info == nil {
 586			xonk = xonksaver(user, j, originate(xid))
 587		} else if info.What == SomeActor {
 588			outbox, _ := j.GetString("outbox")
 589			gimmexonks(user, outbox)
 590			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 591			return
 592		} else if info.What == SomeCollection {
 593			gimmexonks(user, xid)
 594			http.Redirect(w, r, "/xzone", http.StatusSeeOther)
 595			return
 596		}
 597	}
 598	convoy := ""
 599	if xonk != nil {
 600		convoy = xonk.Convoy
 601	}
 602	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 603}
 604
 605func xzone(w http.ResponseWriter, r *http.Request) {
 606	u := login.GetUserInfo(r)
 607	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 608	if err != nil {
 609		elog.Printf("query err: %s", err)
 610		return
 611	}
 612	defer rows.Close()
 613	var honkers []Honker
 614	for rows.Next() {
 615		var xid string
 616		rows.Scan(&xid)
 617		honkers = append(honkers, Honker{XID: xid})
 618	}
 619	rows.Close()
 620	for i := range honkers {
 621		_, honkers[i].Handle = handles(honkers[i].XID)
 622	}
 623	templinfo := getInfo(r)
 624	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 625	templinfo["Honkers"] = honkers
 626	err = readviews.Execute(w, "xzone.html", templinfo)
 627	if err != nil {
 628		elog.Print(err)
 629	}
 630}
 631
 632var oldoutbox = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
 633	user, err := butwhatabout(name)
 634	if err != nil {
 635		return nil, false
 636	}
 637	honks := gethonksbyuser(name, false, 0)
 638	if len(honks) > 20 {
 639		honks = honks[0:20]
 640	}
 641
 642	var jonks []junk.Junk
 643	for _, h := range honks {
 644		j, _ := jonkjonk(user, h)
 645		jonks = append(jonks, j)
 646	}
 647
 648	j := junk.New()
 649	j["@context"] = itiswhatitis
 650	j["id"] = user.URL + "/outbox"
 651	j["attributedTo"] = user.URL
 652	j["type"] = "OrderedCollection"
 653	j["totalItems"] = len(jonks)
 654	j["orderedItems"] = jonks
 655
 656	return j.ToBytes(), true
 657}, Duration: 1 * time.Minute})
 658
 659func outbox(w http.ResponseWriter, r *http.Request) {
 660	name := mux.Vars(r)["name"]
 661	user, err := butwhatabout(name)
 662	if err != nil {
 663		http.NotFound(w, r)
 664		return
 665	}
 666	if stealthmode(user.ID, r) {
 667		http.NotFound(w, r)
 668		return
 669	}
 670	var j []byte
 671	ok := oldoutbox.Get(name, &j)
 672	if ok {
 673		w.Header().Set("Content-Type", theonetruename)
 674		w.Write(j)
 675	} else {
 676		http.NotFound(w, r)
 677	}
 678}
 679
 680var oldempties = cache.New(cache.Options{Filler: func(url string) ([]byte, bool) {
 681	colname := "/followers"
 682	if strings.HasSuffix(url, "/following") {
 683		colname = "/following"
 684	}
 685	user := fmt.Sprintf("https://%s%s", serverName, url[:len(url)-10])
 686	j := junk.New()
 687	j["@context"] = itiswhatitis
 688	j["id"] = user + colname
 689	j["attributedTo"] = user
 690	j["type"] = "OrderedCollection"
 691	j["totalItems"] = 0
 692	j["orderedItems"] = []junk.Junk{}
 693
 694	return j.ToBytes(), true
 695}})
 696
 697func emptiness(w http.ResponseWriter, r *http.Request) {
 698	name := mux.Vars(r)["name"]
 699	user, err := butwhatabout(name)
 700	if err != nil {
 701		http.NotFound(w, r)
 702		return
 703	}
 704	if stealthmode(user.ID, r) {
 705		http.NotFound(w, r)
 706		return
 707	}
 708	var j []byte
 709	ok := oldempties.Get(r.URL.Path, &j)
 710	if ok {
 711		w.Header().Set("Content-Type", theonetruename)
 712		w.Write(j)
 713	} else {
 714		http.NotFound(w, r)
 715	}
 716}
 717
 718func showuser(w http.ResponseWriter, r *http.Request) {
 719	name := mux.Vars(r)["name"]
 720	user, err := butwhatabout(name)
 721	if err != nil {
 722		ilog.Printf("user not found %s: %s", name, err)
 723		http.NotFound(w, r)
 724		return
 725	}
 726	if stealthmode(user.ID, r) {
 727		http.NotFound(w, r)
 728		return
 729	}
 730	if friendorfoe(r.Header.Get("Accept")) {
 731		j, ok := asjonker(name)
 732		if ok {
 733			w.Header().Set("Content-Type", theonetruename)
 734			w.Write(j)
 735		} else {
 736			http.NotFound(w, r)
 737		}
 738		return
 739	}
 740	u := login.GetUserInfo(r)
 741	if u != nil && u.Username != name {
 742		u = nil
 743	}
 744	honks := gethonksbyuser(name, u != nil, 0)
 745	templinfo := getInfo(r)
 746	templinfo["PageName"] = "user"
 747	templinfo["PageArg"] = name
 748	templinfo["Name"] = user.Name
 749	templinfo["WhatAbout"] = user.HTAbout
 750	templinfo["ServerMessage"] = ""
 751	templinfo["APAltLink"] = templates.Sprintf("<link href='%s' rel='alternate' type='application/activity+json'>", user.URL)
 752	if u != nil {
 753		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 754	}
 755	honkpage(w, u, honks, templinfo)
 756}
 757
 758func showhonker(w http.ResponseWriter, r *http.Request) {
 759	u := login.GetUserInfo(r)
 760	name := mux.Vars(r)["name"]
 761	var honks []*Honk
 762	if name == "" {
 763		name = r.FormValue("xid")
 764		honks = gethonksbyxonker(u.UserID, name, 0)
 765	} else {
 766		honks = gethonksbyhonker(u.UserID, name, 0)
 767	}
 768	miniform := templates.Sprintf(`<form action="/submithonker" method="POST">
 769<input type="hidden" name="CSRF" value="%s">
 770<input type="hidden" name="url" value="%s">
 771<button tabindex=1 name="add honker" value="add honker">add honker</button>
 772</form>`, login.GetCSRF("submithonker", r), name)
 773	msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>%s`, name, name, miniform)
 774	templinfo := getInfo(r)
 775	templinfo["PageName"] = "honker"
 776	templinfo["PageArg"] = name
 777	templinfo["ServerMessage"] = msg
 778	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 779	honkpage(w, u, honks, templinfo)
 780}
 781
 782func showcombo(w http.ResponseWriter, r *http.Request) {
 783	name := mux.Vars(r)["name"]
 784	u := login.GetUserInfo(r)
 785	honks := gethonksbycombo(u.UserID, name, 0)
 786	honks = osmosis(honks, u.UserID, true)
 787	templinfo := getInfo(r)
 788	templinfo["PageName"] = "combo"
 789	templinfo["PageArg"] = name
 790	templinfo["ServerMessage"] = "honks by combo: " + name
 791	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 792	honkpage(w, u, honks, templinfo)
 793}
 794func showconvoy(w http.ResponseWriter, r *http.Request) {
 795	c := r.FormValue("c")
 796	u := login.GetUserInfo(r)
 797	honks := gethonksbyconvoy(u.UserID, c, 0)
 798	templinfo := getInfo(r)
 799	if len(honks) > 0 {
 800		templinfo["TopHID"] = honks[0].ID
 801	}
 802	honks = osmosis(honks, u.UserID, false)
 803	//reversehonks(honks)
 804	honks = threadsort(honks)
 805	templinfo["PageName"] = "convoy"
 806	templinfo["PageArg"] = c
 807	templinfo["ServerMessage"] = "honks in convoy: " + c
 808	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 809	honkpage(w, u, honks, templinfo)
 810}
 811func showsearch(w http.ResponseWriter, r *http.Request) {
 812	q := r.FormValue("q")
 813	if strings.HasPrefix(q, "https://") {
 814		ximport(w, r)
 815		return
 816	}
 817	u := login.GetUserInfo(r)
 818	honks := gethonksbysearch(u.UserID, q, 0)
 819	templinfo := getInfo(r)
 820	templinfo["PageName"] = "search"
 821	templinfo["PageArg"] = q
 822	templinfo["ServerMessage"] = "honks for search: " + q
 823	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 824	honkpage(w, u, honks, templinfo)
 825}
 826func showontology(w http.ResponseWriter, r *http.Request) {
 827	name := mux.Vars(r)["name"]
 828	u := login.GetUserInfo(r)
 829	var userid int64 = -1
 830	if u != nil {
 831		userid = u.UserID
 832	}
 833	honks := gethonksbyontology(userid, "#"+name, 0)
 834	if friendorfoe(r.Header.Get("Accept")) {
 835		if len(honks) > 40 {
 836			honks = honks[0:40]
 837		}
 838
 839		var xids []string
 840		for _, h := range honks {
 841			xids = append(xids, h.XID)
 842		}
 843
 844		user := getserveruser()
 845
 846		j := junk.New()
 847		j["@context"] = itiswhatitis
 848		j["id"] = fmt.Sprintf("https://%s/o/%s", serverName, name)
 849		j["name"] = "#" + name
 850		j["attributedTo"] = user.URL
 851		j["type"] = "OrderedCollection"
 852		j["totalItems"] = len(xids)
 853		j["orderedItems"] = xids
 854
 855		j.Write(w)
 856		return
 857	}
 858
 859	templinfo := getInfo(r)
 860	templinfo["ServerMessage"] = "honks by ontology: " + name
 861	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 862	honkpage(w, u, honks, templinfo)
 863}
 864
 865type Ont struct {
 866	Name  string
 867	Count int64
 868}
 869
 870func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 871	u := login.GetUserInfo(r)
 872	var userid int64 = -1
 873	if u != nil {
 874		userid = u.UserID
 875	}
 876	rows, err := stmtAllOnts.Query(userid)
 877	if err != nil {
 878		elog.Printf("selection error: %s", err)
 879		return
 880	}
 881	defer rows.Close()
 882	var onts []Ont
 883	for rows.Next() {
 884		var o Ont
 885		err := rows.Scan(&o.Name, &o.Count)
 886		if err != nil {
 887			elog.Printf("error scanning ont: %s", err)
 888			continue
 889		}
 890		if utf8.RuneCountInString(o.Name) > 24 {
 891			continue
 892		}
 893		o.Name = o.Name[1:]
 894		onts = append(onts, o)
 895	}
 896	sort.Slice(onts, func(i, j int) bool {
 897		return onts[i].Name < onts[j].Name
 898	})
 899	if u == nil && !develMode {
 900		w.Header().Set("Cache-Control", "max-age=300")
 901	}
 902	templinfo := getInfo(r)
 903	templinfo["Onts"] = onts
 904	templinfo["FirstRune"] = func(s string) rune { r, _ := utf8.DecodeRuneInString(s); return r }
 905	err = readviews.Execute(w, "onts.html", templinfo)
 906	if err != nil {
 907		elog.Print(err)
 908	}
 909}
 910
 911type Track struct {
 912	xid string
 913	who string
 914}
 915
 916func getbacktracks(xid string) []string {
 917	c := make(chan bool)
 918	dumptracks <- c
 919	<-c
 920	row := stmtGetTracks.QueryRow(xid)
 921	var rawtracks string
 922	err := row.Scan(&rawtracks)
 923	if err != nil {
 924		if err != sql.ErrNoRows {
 925			elog.Printf("error scanning tracks: %s", err)
 926		}
 927		return nil
 928	}
 929	var rcpts []string
 930	for _, f := range strings.Split(rawtracks, " ") {
 931		idx := strings.LastIndexByte(f, '#')
 932		if idx != -1 {
 933			f = f[:idx]
 934		}
 935		if !strings.HasPrefix(f, "https://") {
 936			f = fmt.Sprintf("%%https://%s/inbox", f)
 937		}
 938		rcpts = append(rcpts, f)
 939	}
 940	return rcpts
 941}
 942
 943func savetracks(tracks map[string][]string) {
 944	db := opendatabase()
 945	tx, err := db.Begin()
 946	if err != nil {
 947		elog.Printf("savetracks begin error: %s", err)
 948		return
 949	}
 950	defer func() {
 951		err := tx.Commit()
 952		if err != nil {
 953			elog.Printf("savetracks commit error: %s", err)
 954		}
 955
 956	}()
 957	stmtGetTracks, err := tx.Prepare("select fetches from tracks where xid = ?")
 958	if err != nil {
 959		elog.Printf("savetracks error: %s", err)
 960		return
 961	}
 962	stmtNewTracks, err := tx.Prepare("insert into tracks (xid, fetches) values (?, ?)")
 963	if err != nil {
 964		elog.Printf("savetracks error: %s", err)
 965		return
 966	}
 967	stmtUpdateTracks, err := tx.Prepare("update tracks set fetches = ? where xid = ?")
 968	if err != nil {
 969		elog.Printf("savetracks error: %s", err)
 970		return
 971	}
 972	count := 0
 973	for xid, f := range tracks {
 974		count += len(f)
 975		var prev string
 976		row := stmtGetTracks.QueryRow(xid)
 977		err := row.Scan(&prev)
 978		if err == sql.ErrNoRows {
 979			f = oneofakind(f)
 980			stmtNewTracks.Exec(xid, strings.Join(f, " "))
 981		} else if err == nil {
 982			all := append(strings.Split(prev, " "), f...)
 983			all = oneofakind(all)
 984			stmtUpdateTracks.Exec(strings.Join(all, " "))
 985		} else {
 986			elog.Printf("savetracks error: %s", err)
 987		}
 988	}
 989	dlog.Printf("saved %d new fetches", count)
 990}
 991
 992var trackchan = make(chan Track)
 993var dumptracks = make(chan chan bool)
 994
 995func tracker() {
 996	timeout := 4 * time.Minute
 997	sleeper := time.NewTimer(timeout)
 998	tracks := make(map[string][]string)
 999	workinprogress++
1000	for {
1001		select {
1002		case track := <-trackchan:
1003			tracks[track.xid] = append(tracks[track.xid], track.who)
1004		case <-sleeper.C:
1005			if len(tracks) > 0 {
1006				go savetracks(tracks)
1007				tracks = make(map[string][]string)
1008			}
1009			sleeper.Reset(timeout)
1010		case c := <-dumptracks:
1011			if len(tracks) > 0 {
1012				savetracks(tracks)
1013			}
1014			c <- true
1015		case <-endoftheworld:
1016			if len(tracks) > 0 {
1017				savetracks(tracks)
1018			}
1019			readyalready <- true
1020			return
1021		}
1022	}
1023}
1024
1025var re_keyholder = regexp.MustCompile(`keyId="([^"]+)"`)
1026
1027func trackback(xid string, r *http.Request) {
1028	agent := r.UserAgent()
1029	who := originate(agent)
1030	sig := r.Header.Get("Signature")
1031	if sig != "" {
1032		m := re_keyholder.FindStringSubmatch(sig)
1033		if len(m) == 2 {
1034			who = m[1]
1035		}
1036	}
1037	if who != "" {
1038		trackchan <- Track{xid: xid, who: who}
1039	}
1040}
1041
1042func sameperson(h1, h2 *Honk) bool {
1043	n1, n2 := h1.Honker, h2.Honker
1044	if h1.Oonker != "" {
1045		n1 = h1.Oonker
1046	}
1047	if h2.Oonker != "" {
1048		n2 = h2.Oonker
1049	}
1050	return n1 == n2
1051}
1052
1053func threadsort(honks []*Honk) []*Honk {
1054	sort.Slice(honks, func(i, j int) bool {
1055		return honks[i].Date.Before(honks[j].Date)
1056	})
1057	honkx := make(map[string]*Honk)
1058	kids := make(map[string][]*Honk)
1059	for _, h := range honks {
1060		honkx[h.XID] = h
1061		rid := h.RID
1062		kids[rid] = append(kids[rid], h)
1063	}
1064	done := make(map[*Honk]bool)
1065	var thread []*Honk
1066	var nextlevel func(p *Honk)
1067	level := 0
1068	nextlevel = func(p *Honk) {
1069		levelup := level < 4
1070		if pp := honkx[p.RID]; p.RID == "" || (pp != nil && sameperson(p, pp)) {
1071			levelup = false
1072		}
1073		if level > 0 && len(kids[p.RID]) == 1 {
1074			if pp := honkx[p.RID]; pp != nil && len(kids[pp.RID]) == 1 {
1075				levelup = false
1076			}
1077		}
1078		if levelup {
1079			level++
1080		}
1081		p.Style += fmt.Sprintf(" level%d", level)
1082		childs := kids[p.XID]
1083		if false {
1084			sort.SliceStable(childs, func(i, j int) bool {
1085				return sameperson(childs[i], p) && !sameperson(childs[j], p)
1086			})
1087		}
1088		if true {
1089			sort.SliceStable(childs, func(i, j int) bool {
1090				return !sameperson(childs[i], p) && sameperson(childs[j], p)
1091			})
1092		}
1093		for _, h := range childs {
1094			if !done[h] {
1095				done[h] = true
1096				thread = append(thread, h)
1097				nextlevel(h)
1098			}
1099		}
1100		if levelup {
1101			level--
1102		}
1103	}
1104	for _, h := range honks {
1105		if !done[h] && h.RID == "" {
1106			done[h] = true
1107			thread = append(thread, h)
1108			nextlevel(h)
1109		}
1110	}
1111	for _, h := range honks {
1112		if !done[h] {
1113			done[h] = true
1114			thread = append(thread, h)
1115			nextlevel(h)
1116		}
1117	}
1118	return thread
1119}
1120
1121func honkology(honk *Honk) template.HTML {
1122	var user *WhatAbout
1123	ok := somenumberedusers.Get(honk.UserID, &user)
1124	if !ok {
1125		return ""
1126	}
1127	title := fmt.Sprintf("%s: %s", user.Display, honk.Precis)
1128	imgurl := avatarURL(user)
1129	for _, d := range honk.Donks {
1130		if d.Local && strings.HasPrefix(d.Media, "image") {
1131			imgurl = d.URL
1132			break
1133		}
1134	}
1135	short := honk.Noise
1136	if len(short) > 160 {
1137		short = short[0:160] + "..."
1138	}
1139	return templates.Sprintf(
1140		`<meta property="og:title" content="%s" />
1141<meta property="og:type" content="article" />
1142<meta property="article:author" content="%s" />
1143<meta property="og:url" content="%s" />
1144<meta property="og:image" content="%s" />
1145<meta property="og:description" content="%s" />`,
1146		title, user.URL, honk.XID, imgurl, short)
1147}
1148
1149func showonehonk(w http.ResponseWriter, r *http.Request) {
1150	name := mux.Vars(r)["name"]
1151	user, err := butwhatabout(name)
1152	if err != nil {
1153		http.NotFound(w, r)
1154		return
1155	}
1156	if stealthmode(user.ID, r) {
1157		http.NotFound(w, r)
1158		return
1159	}
1160	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
1161
1162	if friendorfoe(r.Header.Get("Accept")) {
1163		j, ok := gimmejonk(xid)
1164		if ok {
1165			trackback(xid, r)
1166			w.Header().Set("Content-Type", theonetruename)
1167			w.Write(j)
1168		} else {
1169			http.NotFound(w, r)
1170		}
1171		return
1172	}
1173	honk := getxonk(user.ID, xid)
1174	if honk == nil {
1175		http.NotFound(w, r)
1176		return
1177	}
1178	u := login.GetUserInfo(r)
1179	if u != nil && u.UserID != user.ID {
1180		u = nil
1181	}
1182	if !honk.Public {
1183		if u == nil {
1184			http.NotFound(w, r)
1185			return
1186
1187		}
1188		honks := []*Honk{honk}
1189		donksforhonks(honks)
1190		templinfo := getInfo(r)
1191		templinfo["ServerMessage"] = "one honk maybe more"
1192		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1193		honkpage(w, u, honks, templinfo)
1194		return
1195	}
1196
1197	templinfo := getInfo(r)
1198	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1199	//reversehonks(rawhonks)
1200	rawhonks = threadsort(rawhonks)
1201	var honks []*Honk
1202	for _, h := range rawhonks {
1203		if h.XID == xid {
1204			templinfo["Honkology"] = honkology(h)
1205			if len(honks) != 0 {
1206				h.Style += " glow"
1207			}
1208		}
1209		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
1210			honks = append(honks, h)
1211		}
1212	}
1213
1214	templinfo["ServerMessage"] = "one honk maybe more"
1215	if u != nil {
1216		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1217	}
1218	templinfo["APAltLink"] = templates.Sprintf("<link href='%s' rel='alternate' type='application/activity+json'>", xid)
1219	honkpage(w, u, honks, templinfo)
1220}
1221
1222func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
1223	var emunames []string
1224	dir, err := os.Open(dataDir + "/emus")
1225	if err == nil {
1226		emunames, _ = dir.Readdirnames(0)
1227		dir.Close()
1228	}
1229	for i, e := range emunames {
1230		if len(e) > 4 {
1231			emunames[i] = e[:len(e)-4]
1232		}
1233	}
1234	templinfo["Emus"] = emunames
1235	var userid int64 = -1
1236	if u != nil {
1237		userid = u.UserID
1238		templinfo["User"], _ = butwhatabout(u.Username)
1239	}
1240	reverbolate(userid, honks)
1241	templinfo["Honks"] = honks
1242	templinfo["MapLink"] = getmaplink(u)
1243	if templinfo["TopHID"] == nil {
1244		if len(honks) > 0 {
1245			templinfo["TopHID"] = honks[0].ID
1246		} else {
1247			templinfo["TopHID"] = 0
1248		}
1249	}
1250	if u == nil && !develMode {
1251		w.Header().Set("Cache-Control", "max-age=60")
1252	}
1253	err = readviews.Execute(w, "honkpage.html", templinfo)
1254	if err != nil {
1255		elog.Print(err)
1256	}
1257}
1258
1259func saveuser(w http.ResponseWriter, r *http.Request) {
1260	whatabout := r.FormValue("whatabout")
1261	whatabout = strings.Replace(whatabout, "\r", "", -1)
1262	u := login.GetUserInfo(r)
1263	user, _ := butwhatabout(u.Username)
1264	db := opendatabase()
1265
1266	options := user.Options
1267	if r.FormValue("skinny") == "skinny" {
1268		options.SkinnyCSS = true
1269	} else {
1270		options.SkinnyCSS = false
1271	}
1272	if r.FormValue("omitimages") == "omitimages" {
1273		options.OmitImages = true
1274	} else {
1275		options.OmitImages = false
1276	}
1277	if r.FormValue("mentionall") == "mentionall" {
1278		options.MentionAll = true
1279	} else {
1280		options.MentionAll = false
1281	}
1282	if r.FormValue("inlineqts") == "inlineqts" {
1283		options.InlineQuotes = true
1284	} else {
1285		options.InlineQuotes = false
1286	}
1287	if r.FormValue("maps") == "apple" {
1288		options.MapLink = "apple"
1289	} else {
1290		options.MapLink = ""
1291	}
1292
1293	sendupdate := false
1294	if r.FormValue("displayname") != "" {
1295		options.CustomDisplay = r.FormValue("displayname")
1296		_, err := db.Exec("update users set displayname = ? where username = ?", options.CustomDisplay, u.Username)
1297		if err != nil {
1298			elog.Printf("error setting displayname: %s", err)
1299		}
1300		sendupdate = true
1301	} else {
1302		options.CustomDisplay = ""
1303	}
1304
1305	options.Reaction = r.FormValue("reaction")
1306
1307	ava := re_avatar.FindString(whatabout)
1308	if ava != "" {
1309		whatabout = re_avatar.ReplaceAllString(whatabout, "")
1310		ava = ava[7:]
1311		if ava[0] == ' ' {
1312			ava = ava[1:]
1313		}
1314		ava = fmt.Sprintf("https://%s/meme/%s", serverName, ava)
1315	}
1316	if ava != options.Avatar {
1317		options.Avatar = ava
1318		sendupdate = true
1319	}
1320	ban := re_banner.FindString(whatabout)
1321	if ban != "" {
1322		whatabout = re_banner.ReplaceAllString(whatabout, "")
1323		ban = ban[7:]
1324		if ban[0] == ' ' {
1325			ban = ban[1:]
1326		}
1327		ban = fmt.Sprintf("https://%s/meme/%s", serverName, ban)
1328	}
1329	if ban != options.Banner {
1330		options.Banner = ban
1331		sendupdate = true
1332	}
1333	whatabout = strings.TrimSpace(whatabout)
1334	if whatabout != user.About {
1335		sendupdate = true
1336	}
1337	j, err := jsonify(options)
1338	if err == nil {
1339		_, err = db.Exec("update users set about = ?, options = ? where username = ?", whatabout, j, u.Username)
1340	}
1341	if err != nil {
1342		elog.Printf("error bouting what: %s", err)
1343	}
1344	somenamedusers.Clear(u.Username)
1345	somenumberedusers.Clear(u.UserID)
1346	oldjonkers.Clear(u.Username)
1347
1348	if sendupdate {
1349		updateMe(u.Username)
1350	}
1351
1352	http.Redirect(w, r, "/account", http.StatusSeeOther)
1353}
1354
1355func bonkit(xid string, user *WhatAbout) {
1356	dlog.Printf("bonking %s", xid)
1357
1358	xonk := getxonk(user.ID, xid)
1359	if xonk == nil {
1360		return
1361	}
1362	if !xonk.Public {
1363		return
1364	}
1365	if xonk.IsBonked() {
1366		return
1367	}
1368	donksforhonks([]*Honk{xonk})
1369
1370	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
1371	if err != nil {
1372		elog.Printf("error acking bonk: %s", err)
1373	}
1374
1375	oonker := xonk.Oonker
1376	if oonker == "" {
1377		oonker = xonk.Honker
1378	}
1379	dt := time.Now().UTC()
1380	bonk := &Honk{
1381		UserID:   user.ID,
1382		Username: user.Name,
1383		What:     "bonk",
1384		Honker:   user.URL,
1385		Oonker:   oonker,
1386		XID:      xonk.XID,
1387		RID:      xonk.RID,
1388		Noise:    xonk.Noise,
1389		Precis:   xonk.Precis,
1390		URL:      xonk.URL,
1391		Date:     dt,
1392		Donks:    xonk.Donks,
1393		Whofore:  2,
1394		Convoy:   xonk.Convoy,
1395		Audience: []string{thewholeworld, oonker},
1396		Public:   true,
1397		Format:   xonk.Format,
1398		Place:    xonk.Place,
1399		Onts:     xonk.Onts,
1400		Time:     xonk.Time,
1401	}
1402
1403	err = savehonk(bonk)
1404	if err != nil {
1405		elog.Printf("uh oh")
1406		return
1407	}
1408
1409	go honkworldwide(user, bonk)
1410}
1411
1412func submitbonk(w http.ResponseWriter, r *http.Request) {
1413	xid := r.FormValue("xid")
1414	userinfo := login.GetUserInfo(r)
1415	user, _ := butwhatabout(userinfo.Username)
1416
1417	bonkit(xid, user)
1418
1419	if r.FormValue("js") != "1" {
1420		templinfo := getInfo(r)
1421		templinfo["ServerMessage"] = "Bonked!"
1422		err := readviews.Execute(w, "msg.html", templinfo)
1423		if err != nil {
1424			elog.Print(err)
1425		}
1426	}
1427}
1428
1429func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string, aux string) {
1430	zonk := &Honk{
1431		What:     what,
1432		XID:      xonk.XID,
1433		Date:     time.Now().UTC(),
1434		Audience: oneofakind(xonk.Audience),
1435		Noise:    aux,
1436	}
1437	zonk.Public = loudandproud(zonk.Audience)
1438
1439	dlog.Printf("announcing %sed honk: %s", what, xonk.XID)
1440	go honkworldwide(user, zonk)
1441}
1442
1443func zonkit(w http.ResponseWriter, r *http.Request) {
1444	wherefore := r.FormValue("wherefore")
1445	what := r.FormValue("what")
1446	userinfo := login.GetUserInfo(r)
1447	user, _ := butwhatabout(userinfo.Username)
1448
1449	if wherefore == "save" {
1450		xonk := getxonk(userinfo.UserID, what)
1451		if xonk != nil {
1452			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
1453			if err != nil {
1454				elog.Printf("error saving: %s", err)
1455			}
1456		}
1457		return
1458	}
1459
1460	if wherefore == "unsave" {
1461		xonk := getxonk(userinfo.UserID, what)
1462		if xonk != nil {
1463			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
1464			if err != nil {
1465				elog.Printf("error unsaving: %s", err)
1466			}
1467		}
1468		return
1469	}
1470
1471	if wherefore == "react" {
1472		reaction := user.Options.Reaction
1473		if r2 := r.FormValue("reaction"); r2 != "" {
1474			reaction = r2
1475		}
1476		if reaction == "none" {
1477			return
1478		}
1479		xonk := getxonk(userinfo.UserID, what)
1480		if xonk != nil {
1481			_, err := stmtUpdateFlags.Exec(flagIsReacted, xonk.ID)
1482			if err != nil {
1483				elog.Printf("error saving: %s", err)
1484			}
1485			sendzonkofsorts(xonk, user, "react", reaction)
1486		}
1487		return
1488	}
1489
1490	// my hammer is too big, oh well
1491	defer oldjonks.Flush()
1492
1493	if wherefore == "ack" {
1494		xonk := getxonk(userinfo.UserID, what)
1495		if xonk != nil && !xonk.IsAcked() {
1496			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
1497			if err != nil {
1498				elog.Printf("error acking: %s", err)
1499			}
1500			sendzonkofsorts(xonk, user, "ack", "")
1501		}
1502		return
1503	}
1504
1505	if wherefore == "deack" {
1506		xonk := getxonk(userinfo.UserID, what)
1507		if xonk != nil && xonk.IsAcked() {
1508			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
1509			if err != nil {
1510				elog.Printf("error deacking: %s", err)
1511			}
1512			sendzonkofsorts(xonk, user, "deack", "")
1513		}
1514		return
1515	}
1516
1517	if wherefore == "bonk" {
1518		user, _ := butwhatabout(userinfo.Username)
1519		bonkit(what, user)
1520		return
1521	}
1522
1523	if wherefore == "unbonk" {
1524		xonk := getbonk(userinfo.UserID, what)
1525		if xonk != nil {
1526			deletehonk(xonk.ID)
1527			xonk = getxonk(userinfo.UserID, what)
1528			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
1529			if err != nil {
1530				elog.Printf("error unbonking: %s", err)
1531			}
1532			sendzonkofsorts(xonk, user, "unbonk", "")
1533		}
1534		return
1535	}
1536
1537	if wherefore == "untag" {
1538		xonk := getxonk(userinfo.UserID, what)
1539		if xonk != nil {
1540			_, err := stmtUpdateFlags.Exec(flagIsUntagged, xonk.ID)
1541			if err != nil {
1542				elog.Printf("error untagging: %s", err)
1543			}
1544		}
1545		var badparents map[string]bool
1546		untagged.GetAndLock(userinfo.UserID, &badparents)
1547		badparents[what] = true
1548		untagged.Unlock()
1549		return
1550	}
1551
1552	ilog.Printf("zonking %s %s", wherefore, what)
1553	if wherefore == "zonk" {
1554		xonk := getxonk(userinfo.UserID, what)
1555		if xonk != nil {
1556			deletehonk(xonk.ID)
1557			if xonk.Whofore == 2 || xonk.Whofore == 3 {
1558				sendzonkofsorts(xonk, user, "zonk", "")
1559			}
1560		}
1561	}
1562	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
1563	if err != nil {
1564		elog.Printf("error saving zonker: %s", err)
1565		return
1566	}
1567}
1568
1569func edithonkpage(w http.ResponseWriter, r *http.Request) {
1570	u := login.GetUserInfo(r)
1571	user, _ := butwhatabout(u.Username)
1572	xid := r.FormValue("xid")
1573	honk := getxonk(u.UserID, xid)
1574	if !canedithonk(user, honk) {
1575		http.Error(w, "no editing that please", http.StatusInternalServerError)
1576		return
1577	}
1578
1579	noise := honk.Noise
1580
1581	honks := []*Honk{honk}
1582	donksforhonks(honks)
1583	reverbolate(u.UserID, honks)
1584	templinfo := getInfo(r)
1585	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1586	templinfo["Honks"] = honks
1587	templinfo["MapLink"] = getmaplink(u)
1588	templinfo["Noise"] = noise
1589	templinfo["SavedPlace"] = honk.Place
1590	if tm := honk.Time; tm != nil {
1591		templinfo["ShowTime"] = " "
1592		templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 15:04")
1593		if tm.Duration != 0 {
1594			templinfo["Duration"] = tm.Duration
1595		}
1596	}
1597	templinfo["ServerMessage"] = "honk edit"
1598	templinfo["IsPreview"] = true
1599	templinfo["UpdateXID"] = honk.XID
1600	if len(honk.Donks) > 0 {
1601		var savedfiles []string
1602		for _, d := range honk.Donks {
1603			savedfiles = append(savedfiles, fmt.Sprintf("%s:%d", d.XID, d.FileID))
1604		}
1605		templinfo["SavedFile"] = strings.Join(savedfiles, ",")
1606	}
1607	err := readviews.Execute(w, "honkpage.html", templinfo)
1608	if err != nil {
1609		elog.Print(err)
1610	}
1611}
1612
1613func newhonkpage(w http.ResponseWriter, r *http.Request) {
1614	u := login.GetUserInfo(r)
1615	rid := r.FormValue("rid")
1616	noise := ""
1617
1618	xonk := getxonk(u.UserID, rid)
1619	if xonk != nil {
1620		_, replto := handles(xonk.Honker)
1621		if replto != "" {
1622			noise = "@" + replto + " "
1623		}
1624	}
1625
1626	templinfo := getInfo(r)
1627	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1628	templinfo["InReplyTo"] = rid
1629	templinfo["Noise"] = noise
1630	templinfo["ServerMessage"] = "compose honk"
1631	templinfo["IsPreview"] = true
1632	err := readviews.Execute(w, "honkpage.html", templinfo)
1633	if err != nil {
1634		elog.Print(err)
1635	}
1636}
1637
1638func canedithonk(user *WhatAbout, honk *Honk) bool {
1639	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1640		return false
1641	}
1642	return true
1643}
1644
1645func submitdonk(w http.ResponseWriter, r *http.Request) ([]*Donk, error) {
1646	if !strings.HasPrefix(strings.ToLower(r.Header.Get("Content-Type")), "multipart/form-data") {
1647		return nil, nil
1648	}
1649	var donks []*Donk
1650	for i, hdr := range r.MultipartForm.File["donk"] {
1651		if i > 16 {
1652			break
1653		}
1654		donk, err := formtodonk(w, r, hdr)
1655		if err != nil {
1656			return nil, err
1657		}
1658		donks = append(donks, donk)
1659	}
1660	return donks, nil
1661}
1662
1663func formtodonk(w http.ResponseWriter, r *http.Request, filehdr *multipart.FileHeader) (*Donk, error) {
1664	file, err := filehdr.Open()
1665	if err != nil {
1666		if err == http.ErrMissingFile {
1667			return nil, nil
1668		}
1669		elog.Printf("error reading donk: %s", err)
1670		http.Error(w, "error reading donk", http.StatusUnsupportedMediaType)
1671		return nil, err
1672	}
1673	var buf bytes.Buffer
1674	io.Copy(&buf, file)
1675	file.Close()
1676	data := buf.Bytes()
1677	var media, name string
1678	img, err := bigshrink(data)
1679	if err == nil {
1680		data = img.Data
1681		format := img.Format
1682		media = "image/" + format
1683		if format == "jpeg" {
1684			format = "jpg"
1685		}
1686		if format == "svg+xml" {
1687			format = "svg"
1688		}
1689		name = xfiltrate() + "." + format
1690	} else {
1691		ct := http.DetectContentType(data)
1692		switch ct {
1693		case "application/pdf":
1694			maxsize := 10000000
1695			if len(data) > maxsize {
1696				ilog.Printf("bad image: %s too much pdf: %d", err, len(data))
1697				http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1698				return nil, err
1699			}
1700			media = ct
1701			name = filehdr.Filename
1702			if name == "" {
1703				name = xfiltrate() + ".pdf"
1704			}
1705		default:
1706			maxsize := 100000
1707			if len(data) > maxsize {
1708				ilog.Printf("bad image: %s too much text: %d", err, len(data))
1709				http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1710				return nil, err
1711			}
1712			for i := 0; i < len(data); i++ {
1713				if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1714					ilog.Printf("bad image: %s not text: %d", err, data[i])
1715					http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1716					return nil, err
1717				}
1718			}
1719			media = "text/plain"
1720			name = filehdr.Filename
1721			if name == "" {
1722				name = xfiltrate() + ".txt"
1723			}
1724		}
1725	}
1726	desc := strings.TrimSpace(r.FormValue("donkdesc"))
1727	if desc == "" {
1728		desc = name
1729	}
1730	fileid, xid, err := savefileandxid(name, desc, "", media, true, data)
1731	if err != nil {
1732		elog.Printf("unable to save image: %s", err)
1733		http.Error(w, "failed to save attachment", http.StatusUnsupportedMediaType)
1734		return nil, err
1735	}
1736	d := &Donk{
1737		FileID: fileid,
1738		XID:    xid,
1739		Desc:   desc,
1740		Local:  true,
1741	}
1742	return d, nil
1743}
1744
1745func websubmithonk(w http.ResponseWriter, r *http.Request) {
1746	h := submithonk(w, r)
1747	if h == nil {
1748		return
1749	}
1750	http.Redirect(w, r, h.XID[len(serverName)+8:], http.StatusSeeOther)
1751}
1752
1753// what a hot mess this function is
1754func submithonk(w http.ResponseWriter, r *http.Request) *Honk {
1755	rid := r.FormValue("rid")
1756	noise := r.FormValue("noise")
1757	format := r.FormValue("format")
1758	if format == "" {
1759		format = "markdown"
1760	}
1761	if !(format == "markdown" || format == "html") {
1762		http.Error(w, "unknown format", 500)
1763		return nil
1764	}
1765
1766	userinfo := login.GetUserInfo(r)
1767	user, _ := butwhatabout(userinfo.Username)
1768
1769	dt := time.Now().UTC()
1770	updatexid := r.FormValue("updatexid")
1771	var honk *Honk
1772	if updatexid != "" {
1773		honk = getxonk(userinfo.UserID, updatexid)
1774		if !canedithonk(user, honk) {
1775			http.Error(w, "no editing that please", http.StatusInternalServerError)
1776			return nil
1777		}
1778		honk.Date = dt
1779		honk.What = "update"
1780		honk.Format = format
1781	} else {
1782		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1783		what := "honk"
1784		honk = &Honk{
1785			UserID:   userinfo.UserID,
1786			Username: userinfo.Username,
1787			What:     what,
1788			Honker:   user.URL,
1789			XID:      xid,
1790			Date:     dt,
1791			Format:   format,
1792		}
1793	}
1794
1795	var convoy string
1796	noise = strings.Replace(noise, "\r", "", -1)
1797	if updatexid == "" && rid == "" {
1798		noise = re_convoy.ReplaceAllStringFunc(noise, func(m string) string {
1799			convoy = m[7:]
1800			convoy = strings.TrimSpace(convoy)
1801			if !re_convalidate.MatchString(convoy) {
1802				convoy = ""
1803			}
1804			return ""
1805		})
1806	}
1807	noise = quickrename(noise, userinfo.UserID)
1808	noise = hooterize(noise)
1809	honk.Noise = noise
1810	precipitate(honk)
1811	noise = honk.Noise
1812	recategorize(honk)
1813	translate(honk)
1814
1815	if rid != "" {
1816		xonk := getxonk(userinfo.UserID, rid)
1817		if xonk == nil {
1818			http.Error(w, "replyto disappeared", http.StatusNotFound)
1819			return nil
1820		}
1821		if xonk.Public {
1822			honk.Audience = append(honk.Audience, xonk.Audience...)
1823		}
1824		convoy = xonk.Convoy
1825		for i, a := range honk.Audience {
1826			if a == thewholeworld {
1827				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1828				break
1829			}
1830		}
1831		honk.RID = rid
1832		if xonk.Precis != "" && honk.Precis == "" {
1833			honk.Precis = xonk.Precis
1834			if !re_dangerous.MatchString(honk.Precis) {
1835				honk.Precis = "re: " + honk.Precis
1836			}
1837		}
1838	} else if updatexid == "" {
1839		honk.Audience = []string{thewholeworld}
1840	}
1841	if honk.Noise != "" && honk.Noise[0] == '@' {
1842		honk.Audience = append(grapevine(honk.Mentions), honk.Audience...)
1843	} else {
1844		honk.Audience = append(honk.Audience, grapevine(honk.Mentions)...)
1845	}
1846
1847	if convoy == "" {
1848		convoy = fmt.Sprintf("data:,%s-", masqName) + xfiltrate()
1849	}
1850	butnottooloud(honk.Audience)
1851	honk.Audience = oneofakind(honk.Audience)
1852	if len(honk.Audience) == 0 {
1853		ilog.Printf("honk to nowhere")
1854		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1855		return nil
1856	}
1857	honk.Public = loudandproud(honk.Audience)
1858	honk.Convoy = convoy
1859	donkxid := strings.Join(r.Form["donkxid"], ",")
1860	if donkxid == "" {
1861		donks, err := submitdonk(w, r)
1862		if err != nil && err != http.ErrMissingFile {
1863			return nil
1864		}
1865		if len(donks) > 0 {
1866			honk.Donks = append(honk.Donks, donks...)
1867			var xids []string
1868			for _, d := range honk.Donks {
1869				xids = append(xids, fmt.Sprintf("%s:%d", d.XID, d.FileID))
1870			}
1871			donkxid = strings.Join(xids, ",")
1872		}
1873	} else {
1874		xids := strings.Split(donkxid, ",")
1875		for i, xid := range xids {
1876			if i > 16 {
1877				break
1878			}
1879			p := strings.Split(xid, ":")
1880			xid = p[0]
1881			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1882			var donk *Donk
1883			if len(p) > 1 {
1884				fileid, _ := strconv.ParseInt(p[1], 10, 0)
1885				donk = finddonkid(fileid, url)
1886			} else {
1887				donk = finddonk(url)
1888			}
1889			if donk != nil {
1890				honk.Donks = append(honk.Donks, donk)
1891			} else {
1892				ilog.Printf("can't find file: %s", xid)
1893			}
1894		}
1895	}
1896	memetize(honk)
1897	imaginate(honk)
1898
1899	placename := strings.TrimSpace(r.FormValue("placename"))
1900	placelat := strings.TrimSpace(r.FormValue("placelat"))
1901	placelong := strings.TrimSpace(r.FormValue("placelong"))
1902	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1903	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1904		p := new(Place)
1905		p.Name = placename
1906		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1907		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1908		p.Url = placeurl
1909		honk.Place = p
1910	}
1911	timestart := strings.TrimSpace(r.FormValue("timestart"))
1912	if timestart != "" {
1913		t := new(Time)
1914		now := time.Now().Local()
1915		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1916			start, err := time.ParseInLocation(layout, timestart, now.Location())
1917			if err == nil {
1918				if start.Year() == 0 {
1919					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1920				}
1921				t.StartTime = start
1922				break
1923			}
1924		}
1925		timeend := r.FormValue("timeend")
1926		dur := parseDuration(timeend)
1927		if dur != 0 {
1928			t.Duration = Duration(dur)
1929		}
1930		if !t.StartTime.IsZero() {
1931			honk.What = "event"
1932			honk.Time = t
1933		}
1934	}
1935
1936	if honk.Public {
1937		honk.Whofore = 2
1938	} else {
1939		honk.Whofore = 3
1940	}
1941
1942	// back to markdown
1943	honk.Noise = noise
1944
1945	if r.FormValue("preview") == "preview" {
1946		honks := []*Honk{honk}
1947		reverbolate(userinfo.UserID, honks)
1948		templinfo := getInfo(r)
1949		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1950		templinfo["Honks"] = honks
1951		templinfo["MapLink"] = getmaplink(userinfo)
1952		templinfo["InReplyTo"] = r.FormValue("rid")
1953		templinfo["Noise"] = r.FormValue("noise")
1954		templinfo["SavedFile"] = donkxid
1955		if tm := honk.Time; tm != nil {
1956			templinfo["ShowTime"] = " "
1957			templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 15:04")
1958			if tm.Duration != 0 {
1959				templinfo["Duration"] = tm.Duration
1960			}
1961		}
1962		templinfo["IsPreview"] = true
1963		templinfo["UpdateXID"] = updatexid
1964		templinfo["ServerMessage"] = "honk preview"
1965		err := readviews.Execute(w, "honkpage.html", templinfo)
1966		if err != nil {
1967			elog.Print(err)
1968		}
1969		return nil
1970	}
1971
1972	if updatexid != "" {
1973		updatehonk(honk)
1974		oldjonks.Clear(honk.XID)
1975	} else {
1976		err := savehonk(honk)
1977		if err != nil {
1978			elog.Printf("uh oh")
1979			return nil
1980		}
1981	}
1982
1983	// reload for consistency
1984	honk.Donks = nil
1985	donksforhonks([]*Honk{honk})
1986
1987	go honkworldwide(user, honk)
1988
1989	return honk
1990}
1991
1992func showhonkers(w http.ResponseWriter, r *http.Request) {
1993	userinfo := login.GetUserInfo(r)
1994	templinfo := getInfo(r)
1995	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1996	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1997	err := readviews.Execute(w, "honkers.html", templinfo)
1998	if err != nil {
1999		elog.Print(err)
2000	}
2001}
2002
2003func showchatter(w http.ResponseWriter, r *http.Request) {
2004	u := login.GetUserInfo(r)
2005	chatnewnone(u.UserID)
2006	chatter := loadchatter(u.UserID)
2007	for _, chat := range chatter {
2008		for _, ch := range chat.Chonks {
2009			filterchonk(ch)
2010		}
2011	}
2012
2013	templinfo := getInfo(r)
2014	templinfo["Chatter"] = chatter
2015	templinfo["ChonkCSRF"] = login.GetCSRF("sendchonk", r)
2016	err := readviews.Execute(w, "chatter.html", templinfo)
2017	if err != nil {
2018		elog.Print(err)
2019	}
2020}
2021
2022func submitchonk(w http.ResponseWriter, r *http.Request) {
2023	u := login.GetUserInfo(r)
2024	user, _ := butwhatabout(u.Username)
2025	noise := r.FormValue("noise")
2026	target := r.FormValue("target")
2027	format := "markdown"
2028	dt := time.Now().UTC()
2029	xid := fmt.Sprintf("%s/%s/%s", user.URL, "chonk", xfiltrate())
2030
2031	if !strings.HasPrefix(target, "https://") {
2032		target = fullname(target, u.UserID)
2033	}
2034	if target == "" {
2035		http.Error(w, "who is that?", http.StatusInternalServerError)
2036		return
2037	}
2038	ch := Chonk{
2039		UserID: u.UserID,
2040		XID:    xid,
2041		Who:    user.URL,
2042		Target: target,
2043		Date:   dt,
2044		Noise:  noise,
2045		Format: format,
2046	}
2047	donks, err := submitdonk(w, r)
2048	if err != nil && err != http.ErrMissingFile {
2049		return
2050	}
2051	if len(donks) > 0 {
2052		ch.Donks = append(ch.Donks, donks...)
2053	}
2054
2055	translatechonk(&ch)
2056	savechonk(&ch)
2057	// reload for consistency
2058	ch.Donks = nil
2059	donksforchonks([]*Chonk{&ch})
2060	go sendchonk(user, &ch)
2061
2062	http.Redirect(w, r, "/chatter", http.StatusSeeOther)
2063}
2064
2065var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
2066	honkers := gethonkers(userid)
2067	var combos []string
2068	for _, h := range honkers {
2069		combos = append(combos, h.Combos...)
2070	}
2071	for i, c := range combos {
2072		if c == "-" {
2073			combos[i] = ""
2074		}
2075	}
2076	combos = oneofakind(combos)
2077	sort.Strings(combos)
2078	return combos, true
2079}, Invalidator: &honkerinvalidator})
2080
2081func showcombos(w http.ResponseWriter, r *http.Request) {
2082	userinfo := login.GetUserInfo(r)
2083	var combos []string
2084	combocache.Get(userinfo.UserID, &combos)
2085	templinfo := getInfo(r)
2086	err := readviews.Execute(w, "combos.html", templinfo)
2087	if err != nil {
2088		elog.Print(err)
2089	}
2090}
2091
2092func websubmithonker(w http.ResponseWriter, r *http.Request) {
2093	h := submithonker(w, r)
2094	if h == nil {
2095		return
2096	}
2097	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
2098}
2099
2100func submithonker(w http.ResponseWriter, r *http.Request) *Honker {
2101	u := login.GetUserInfo(r)
2102	user, _ := butwhatabout(u.Username)
2103	name := strings.TrimSpace(r.FormValue("name"))
2104	url := strings.TrimSpace(r.FormValue("url"))
2105	peep := r.FormValue("peep")
2106	combos := strings.TrimSpace(r.FormValue("combos"))
2107	combos = " " + combos + " "
2108	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
2109
2110	re_namecheck := regexp.MustCompile("^[\\pL[:digit:]_.-]+$")
2111	if name != "" && !re_namecheck.MatchString(name) {
2112		http.Error(w, "please use a plainer name", http.StatusInternalServerError)
2113		return nil
2114	}
2115
2116	var meta HonkerMeta
2117	meta.Notes = strings.TrimSpace(r.FormValue("notes"))
2118	mj, _ := jsonify(&meta)
2119
2120	defer honkerinvalidator.Clear(u.UserID)
2121
2122	// mostly dummy, fill in later...
2123	h := &Honker{
2124		ID: honkerid,
2125	}
2126
2127	if honkerid > 0 {
2128		if r.FormValue("delete") == "delete" {
2129			unfollowyou(user, honkerid, false)
2130			stmtDeleteHonker.Exec(honkerid)
2131			return h
2132		}
2133		if r.FormValue("unsub") == "unsub" {
2134			unfollowyou(user, honkerid, false)
2135		}
2136		if r.FormValue("sub") == "sub" {
2137			followyou(user, honkerid, false)
2138		}
2139		_, err := stmtUpdateHonker.Exec(name, combos, mj, honkerid, u.UserID)
2140		if err != nil {
2141			elog.Printf("update honker err: %s", err)
2142			return nil
2143		}
2144		return h
2145	}
2146
2147	if url == "" {
2148		http.Error(w, "subscribing to nothing?", http.StatusInternalServerError)
2149		return nil
2150	}
2151
2152	flavor := "presub"
2153	if peep == "peep" {
2154		flavor = "peep"
2155	}
2156
2157	var err error
2158	honkerid, err = savehonker(user, url, name, flavor, combos, mj)
2159	if err != nil {
2160		http.Error(w, "had some trouble with that: "+err.Error(), http.StatusInternalServerError)
2161		return nil
2162	}
2163	if flavor == "presub" {
2164		followyou(user, honkerid, false)
2165	}
2166	h.ID = honkerid
2167	return h
2168}
2169
2170func hfcspage(w http.ResponseWriter, r *http.Request) {
2171	userinfo := login.GetUserInfo(r)
2172
2173	filters := getfilters(userinfo.UserID, filtAny)
2174
2175	templinfo := getInfo(r)
2176	templinfo["Filters"] = filters
2177	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
2178	err := readviews.Execute(w, "hfcs.html", templinfo)
2179	if err != nil {
2180		elog.Print(err)
2181	}
2182}
2183
2184func savehfcs(w http.ResponseWriter, r *http.Request) {
2185	userinfo := login.GetUserInfo(r)
2186	itsok := r.FormValue("itsok")
2187	if itsok == "iforgiveyou" {
2188		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
2189		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
2190		if err != nil {
2191			elog.Printf("error deleting filter: %s", err)
2192		}
2193		filtInvalidator.Clear(userinfo.UserID)
2194		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
2195		return
2196	}
2197
2198	filt := new(Filter)
2199	filt.Name = strings.TrimSpace(r.FormValue("name"))
2200	filt.Date = time.Now().UTC()
2201	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
2202	filt.IncludeAudience = r.FormValue("incaud") == "yes"
2203	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
2204	filt.IsReply = r.FormValue("isreply") == "yes"
2205	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
2206	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
2207	filt.Reject = r.FormValue("doreject") == "yes"
2208	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
2209	filt.Hide = r.FormValue("dohide") == "yes"
2210	filt.Collapse = r.FormValue("docollapse") == "yes"
2211	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
2212	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
2213	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
2214		filt.Expiration = time.Now().UTC().Add(dur)
2215	}
2216	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
2217
2218	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
2219		ilog.Printf("blank filter")
2220		http.Error(w, "can't save a blank filter", http.StatusInternalServerError)
2221		return
2222	}
2223
2224	j, err := jsonify(filt)
2225	if err == nil {
2226		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
2227	}
2228	if err != nil {
2229		elog.Printf("error saving filter: %s", err)
2230	}
2231
2232	filtInvalidator.Clear(userinfo.UserID)
2233	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
2234}
2235
2236func accountpage(w http.ResponseWriter, r *http.Request) {
2237	u := login.GetUserInfo(r)
2238	user, _ := butwhatabout(u.Username)
2239	templinfo := getInfo(r)
2240	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
2241	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
2242	templinfo["User"] = user
2243	about := user.About
2244	if ava := user.Options.Avatar; ava != "" {
2245		about += "\n\navatar: " + ava[strings.LastIndexByte(ava, '/')+1:]
2246	}
2247	if ban := user.Options.Banner; ban != "" {
2248		about += "\n\nbanner: " + ban[strings.LastIndexByte(ban, '/')+1:]
2249	}
2250	templinfo["WhatAbout"] = about
2251	err := readviews.Execute(w, "account.html", templinfo)
2252	if err != nil {
2253		elog.Print(err)
2254	}
2255}
2256
2257func dochpass(w http.ResponseWriter, r *http.Request) {
2258	err := login.ChangePassword(w, r)
2259	if err != nil {
2260		elog.Printf("error changing password: %s", err)
2261	}
2262	http.Redirect(w, r, "/account", http.StatusSeeOther)
2263}
2264
2265var oldfingers = cache.New(cache.Options{Filler: func(orig string) ([]byte, bool) {
2266	if strings.HasPrefix(orig, "acct:") {
2267		orig = orig[5:]
2268	}
2269	name := orig
2270	idx := strings.LastIndexByte(name, '/')
2271	if idx != -1 {
2272		name = name[idx+1:]
2273		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
2274			ilog.Printf("foreign request rejected")
2275			name = ""
2276		}
2277	} else {
2278		idx = strings.IndexByte(name, '@')
2279		if idx != -1 {
2280			name = name[:idx]
2281			if !(name+"@"+serverName == orig || name+"@"+masqName == orig) {
2282				ilog.Printf("foreign request rejected")
2283				name = ""
2284			}
2285		}
2286	}
2287	user, err := butwhatabout(name)
2288	if err != nil {
2289		return nil, false
2290	}
2291
2292	j := junk.New()
2293	pretty := fmt.Sprintf("https://%s/@%s", serverName, name)
2294	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, masqName)
2295	j["aliases"] = []string{pretty, user.URL}
2296	l := junk.New()
2297	l["rel"] = "self"
2298	l["type"] = `application/activity+json`
2299	l["href"] = user.URL
2300	j["links"] = []junk.Junk{l}
2301	l2 := junk.New()
2302	l2["rel"] = "http://webfinger.net/rel/profile-page"
2303	l2["type"] = "text/html"
2304	l2["href"] = pretty
2305	j["links"] = []junk.Junk{l, l2}
2306
2307	return j.ToBytes(), true
2308}})
2309
2310func fingerlicker(w http.ResponseWriter, r *http.Request) {
2311	orig := r.FormValue("resource")
2312
2313	dlog.Printf("finger lick: %s", orig)
2314
2315	var j []byte
2316	ok := oldfingers.Get(orig, &j)
2317	if ok {
2318		w.Header().Set("Content-Type", "application/jrd+json")
2319		w.Write(j)
2320	} else {
2321		http.NotFound(w, r)
2322	}
2323}
2324
2325func knowninformation(w http.ResponseWriter, r *http.Request) {
2326	j := junk.New()
2327	l := junk.New()
2328
2329	l["rel"] = `http://nodeinfo.diaspora.software/ns/schema/2.0`
2330	l["href"] = fmt.Sprintf("https://%s/nodeinfo/2.0", serverName)
2331	j["links"] = []junk.Junk{l}
2332
2333	w.Header().Set("Content-Type", "application/json")
2334	j.Write(w)
2335}
2336
2337func actualinformation(w http.ResponseWriter, r *http.Request) {
2338	j := junk.New()
2339
2340	soft := junk.New()
2341	soft["name"] = "honk"
2342	soft["version"] = softwareVersion
2343
2344	services := junk.New()
2345	services["inbound"] = []string{}
2346	services["outbound"] = []string{"rss2.0"}
2347
2348	users := junk.New()
2349	users["total"] = getusercount()
2350	users["activeHalfyear"] = getactiveusercount(6)
2351	users["activeMonth"] = getactiveusercount(1)
2352
2353	usage := junk.New()
2354	usage["users"] = users
2355	usage["localPosts"] = getlocalhonkcount()
2356
2357	j["version"] = "2.0"
2358	j["protocols"] = []string{"activitypub"}
2359	j["software"] = soft
2360	j["services"] = services
2361	j["openRegistrations"] = false
2362	j["usage"] = usage
2363
2364	w.Header().Set("Content-Type", "application/json")
2365	j.Write(w)
2366}
2367
2368func somedays() string {
2369	secs := 432000 + notrand.Int63n(432000)
2370	return fmt.Sprintf("%d", secs)
2371}
2372
2373func isurl(s string) bool {
2374	u, err := url.Parse(s)
2375	return err == nil && u.Scheme != "" && u.Host != ""
2376}
2377
2378func avatateautogen(r *http.Request) []byte {
2379	n := r.FormValue("a")
2380	return genAvatar(n)
2381}
2382
2383func avatate(w http.ResponseWriter, r *http.Request) {
2384	if develMode {
2385		loadAvatarColors()
2386	}
2387	var a []byte
2388	n := r.FormValue("a")
2389
2390	if isurl(n) {
2391		uinfo := login.GetUserInfo(r)
2392		if uinfo != nil {
2393			j, err := GetJunkFast(uinfo.UserID, n)
2394			if err != nil {
2395				dlog.Println("avatating: getting junk:", err)
2396				a = avatateautogen(r)
2397			}
2398			pfpurl, _ := j.GetString("icon", "url")
2399			res, err := http.Get(pfpurl)
2400			if err != nil {
2401				dlog.Println("avatating: getting pfp url:", err)
2402				a = avatateautogen(r)
2403			} else {
2404				defer res.Body.Close()
2405
2406				pfpbytes, err := io.ReadAll(res.Body)
2407				if err != nil {
2408					dlog.Println("avatating: bruh shits clapped:", err)
2409					a = avatateautogen(r)
2410				}
2411				a = pfpbytes
2412			}
2413		} else {
2414			a = avatateautogen(r)
2415		}
2416	} else {
2417		a = avatateautogen(r)
2418	}
2419
2420	if !develMode {
2421		w.Header().Set("Cache-Control", "max-age="+somedays())
2422	}
2423
2424	w.Write(a)
2425}
2426
2427func serveviewasset(w http.ResponseWriter, r *http.Request) {
2428	serveasset(w, r, viewDir)
2429}
2430func servedataasset(w http.ResponseWriter, r *http.Request) {
2431	if r.URL.Path == "/favicon.ico" {
2432		r.URL.Path = "/icon.png"
2433	}
2434	serveasset(w, r, dataDir)
2435}
2436
2437func serveasset(w http.ResponseWriter, r *http.Request, basedir string) {
2438	if !develMode {
2439		w.Header().Set("Cache-Control", "max-age=7776000")
2440	}
2441	http.ServeFile(w, r, basedir+"/views"+r.URL.Path)
2442}
2443func servehelp(w http.ResponseWriter, r *http.Request) {
2444	name := mux.Vars(r)["name"]
2445	if !develMode {
2446		w.Header().Set("Cache-Control", "max-age=3600")
2447	}
2448	http.ServeFile(w, r, viewDir+"/docs/"+name)
2449}
2450func servehtml(w http.ResponseWriter, r *http.Request) {
2451	u := login.GetUserInfo(r)
2452	templinfo := getInfo(r)
2453	templinfo["AboutMsg"] = aboutMsg
2454	templinfo["LoginMsg"] = loginMsg
2455	templinfo["HonkVersion"] = softwareVersion
2456	if r.URL.Path == "/about" {
2457		templinfo["Sensors"] = getSensors()
2458	}
2459	if u == nil && !develMode {
2460		w.Header().Set("Cache-Control", "max-age=60")
2461	}
2462	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
2463	if err != nil {
2464		elog.Print(err)
2465	}
2466}
2467func serveemu(w http.ResponseWriter, r *http.Request) {
2468	emu := mux.Vars(r)["emu"]
2469
2470	w.Header().Set("Cache-Control", "max-age="+somedays())
2471	http.ServeFile(w, r, dataDir+"/emus/"+emu)
2472}
2473func servememe(w http.ResponseWriter, r *http.Request) {
2474	meme := mux.Vars(r)["meme"]
2475
2476	w.Header().Set("Cache-Control", "max-age="+somedays())
2477	http.ServeFile(w, r, dataDir+"/memes/"+meme)
2478}
2479
2480func servefile(w http.ResponseWriter, r *http.Request) {
2481	xid := mux.Vars(r)["xid"]
2482	var media string
2483	var data []byte
2484	row := stmtGetFileData.QueryRow(xid)
2485	err := row.Scan(&media, &data)
2486	if err != nil {
2487		elog.Printf("error loading file: %s", err)
2488		http.NotFound(w, r)
2489		return
2490	}
2491	w.Header().Set("Content-Type", media)
2492	w.Header().Set("X-Content-Type-Options", "nosniff")
2493	w.Header().Set("Cache-Control", "max-age="+somedays())
2494	w.Write(data)
2495}
2496
2497func nomoroboto(w http.ResponseWriter, r *http.Request) {
2498	io.WriteString(w, "User-agent: *\n")
2499	io.WriteString(w, "Disallow: /a\n")
2500	io.WriteString(w, "Disallow: /d/\n")
2501	io.WriteString(w, "Disallow: /meme/\n")
2502	io.WriteString(w, "Disallow: /o\n")
2503	io.WriteString(w, "Disallow: /o/\n")
2504	io.WriteString(w, "Disallow: /help/\n")
2505	for _, u := range allusers() {
2506		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
2507	}
2508}
2509
2510type Hydration struct {
2511	Tophid    int64
2512	Srvmsg    template.HTML
2513	Honks     string
2514	MeCount   int64
2515	ChatCount int64
2516}
2517
2518func webhydra(w http.ResponseWriter, r *http.Request) {
2519	u := login.GetUserInfo(r)
2520	userid := u.UserID
2521	templinfo := getInfo(r)
2522	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
2523	page := r.FormValue("page")
2524
2525	wanted, _ := strconv.ParseInt(r.FormValue("tophid"), 10, 0)
2526
2527	var hydra Hydration
2528
2529	var honks []*Honk
2530	switch page {
2531	case "atme":
2532		honks = gethonksforme(userid, wanted)
2533		honks = osmosis(honks, userid, false)
2534		menewnone(userid)
2535		hydra.Srvmsg = "at me!"
2536	case "longago":
2537		honks = gethonksfromlongago(userid, wanted)
2538		honks = osmosis(honks, userid, false)
2539		hydra.Srvmsg = "from long ago"
2540	case "home":
2541		honks = gethonksforuser(userid, wanted)
2542		honks = osmosis(honks, userid, true)
2543		hydra.Srvmsg = serverMsg
2544	case "first":
2545		honks = gethonksforuserfirstclass(userid, wanted)
2546		honks = osmosis(honks, userid, true)
2547		hydra.Srvmsg = "first class only"
2548	case "saved":
2549		honks = getsavedhonks(userid, wanted)
2550		templinfo["PageName"] = "saved"
2551		hydra.Srvmsg = "saved honks"
2552	case "combo":
2553		c := r.FormValue("c")
2554		honks = gethonksbycombo(userid, c, wanted)
2555		honks = osmosis(honks, userid, false)
2556		hydra.Srvmsg = templates.Sprintf("honks by combo: %s", c)
2557	case "convoy":
2558		c := r.FormValue("c")
2559		honks = gethonksbyconvoy(userid, c, wanted)
2560		honks = osmosis(honks, userid, false)
2561		honks = threadsort(honks)
2562		reversehonks(honks)
2563		hydra.Srvmsg = templates.Sprintf("honks in convoy: %s", c)
2564	case "honker":
2565		xid := r.FormValue("xid")
2566		honks = gethonksbyxonker(userid, xid, wanted)
2567		miniform := templates.Sprintf(`<form action="/submithonker" method="POST">
2568			<input type="hidden" name="CSRF" value="%s">
2569			<input type="hidden" name="url" value="%s">
2570			<button tabindex=1 name="add honker" value="add honker">add honker</button>
2571			</form>`, login.GetCSRF("submithonker", r), xid)
2572		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>%s`, xid, xid, miniform)
2573		hydra.Srvmsg = msg
2574	case "user":
2575		uname := r.FormValue("uname")
2576		honks = gethonksbyuser(uname, u != nil && u.Username == uname, wanted)
2577		hydra.Srvmsg = templates.Sprintf("honks by user: %s", uname)
2578	default:
2579		http.NotFound(w, r)
2580	}
2581
2582	if len(honks) > 0 {
2583		hydra.Tophid = honks[0].ID
2584	} else {
2585		hydra.Tophid = wanted
2586	}
2587	reverbolate(userid, honks)
2588
2589	user, _ := butwhatabout(u.Username)
2590
2591	var buf strings.Builder
2592	templinfo["Honks"] = honks
2593	templinfo["MapLink"] = getmaplink(u)
2594	templinfo["User"], _ = butwhatabout(u.Username)
2595	err := readviews.Execute(&buf, "honkfrags.html", templinfo)
2596	if err != nil {
2597		elog.Printf("frag error: %s", err)
2598		return
2599	}
2600	hydra.Honks = buf.String()
2601	hydra.MeCount = user.Options.MeCount
2602	hydra.ChatCount = user.Options.ChatCount
2603	w.Header().Set("Content-Type", "application/json")
2604	j, _ := jsonify(&hydra)
2605	io.WriteString(w, j)
2606}
2607
2608var honkline = make(chan bool)
2609
2610func honkhonkline() {
2611	for {
2612		select {
2613		case honkline <- true:
2614		default:
2615			return
2616		}
2617	}
2618}
2619
2620func apihandler(w http.ResponseWriter, r *http.Request) {
2621	u := login.GetUserInfo(r)
2622	userid := u.UserID
2623	action := r.FormValue("action")
2624	wait, _ := strconv.ParseInt(r.FormValue("wait"), 10, 0)
2625	dlog.Printf("api request '%s' on behalf of %s", action, u.Username)
2626	switch action {
2627	case "honk":
2628		h := submithonk(w, r)
2629		if h == nil {
2630			return
2631		}
2632
2633		fmt.Fprintf(w, "%s", h.XID)
2634	case "donk":
2635		donks, err := submitdonk(w, r)
2636		if err != nil {
2637			http.Error(w, err.Error(), http.StatusBadRequest)
2638			return
2639		}
2640		if len(donks) == 0 {
2641			http.Error(w, "missing donk", http.StatusBadRequest)
2642			return
2643		}
2644		d := donks[0]
2645		donkxid := fmt.Sprintf("%s:%d", d.XID, d.FileID)
2646		w.Write([]byte(donkxid))
2647	case "zonkit":
2648		zonkit(w, r)
2649	case "gethonks":
2650		var honks []*Honk
2651		wanted, _ := strconv.ParseInt(r.FormValue("after"), 10, 0)
2652		page := r.FormValue("page")
2653		var waitchan <-chan time.Time
2654	requery:
2655		switch page {
2656		case "atme":
2657			honks = gethonksforme(userid, wanted)
2658			honks = osmosis(honks, userid, false)
2659			menewnone(userid)
2660		case "longago":
2661			honks = gethonksfromlongago(userid, wanted)
2662			honks = osmosis(honks, userid, false)
2663		case "home":
2664			honks = gethonksforuser(userid, wanted)
2665			honks = osmosis(honks, userid, true)
2666		case "myhonks":
2667			honks = gethonksbyuser(u.Username, true, wanted)
2668			honks = osmosis(honks, userid, true)
2669		default:
2670			http.Error(w, "unknown page", http.StatusNotFound)
2671			return
2672		}
2673		if len(honks) == 0 && wait > 0 {
2674			if waitchan == nil {
2675				waitchan = time.After(time.Duration(wait) * time.Second)
2676			}
2677			select {
2678			case <-honkline:
2679				goto requery
2680			case <-waitchan:
2681			}
2682		}
2683		reverbolate(userid, honks)
2684		j := junk.New()
2685		j["honks"] = honks
2686		j.Write(w)
2687	case "sendactivity":
2688		user, _ := butwhatabout(u.Username)
2689		public := r.FormValue("public") == "1"
2690		rcpts := boxuprcpts(user, r.Form["rcpt"], public)
2691		msg := []byte(r.FormValue("msg"))
2692		for rcpt := range rcpts {
2693			go deliverate(userid, rcpt, msg)
2694		}
2695	case "gethonkers":
2696		j := junk.New()
2697		j["honkers"] = gethonkers(u.UserID)
2698		j.Write(w)
2699	case "savehonker":
2700		h := submithonker(w, r)
2701		if h == nil {
2702			return
2703		}
2704		fmt.Fprintf(w, "%d", h.ID)
2705	default:
2706		http.Error(w, "unknown action", http.StatusNotFound)
2707		return
2708	}
2709}
2710
2711func fiveoh(w http.ResponseWriter, r *http.Request) {
2712	if !develMode {
2713		return
2714	}
2715	fd, err := os.OpenFile("violations.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
2716	if err != nil {
2717		elog.Printf("error opening violations! %s", err)
2718		return
2719	}
2720	defer fd.Close()
2721	io.Copy(fd, r.Body)
2722	fd.WriteString("\n")
2723}
2724
2725var endoftheworld = make(chan bool)
2726var readyalready = make(chan bool)
2727var workinprogress = 0
2728
2729func enditall() {
2730	sig := make(chan os.Signal, 1)
2731	signal.Notify(sig, os.Interrupt, syscall.SIGTERM, syscall.SIGQUIT)
2732	<-sig
2733	ilog.Printf("stopping...")
2734	for i := 0; i < workinprogress; i++ {
2735		endoftheworld <- true
2736	}
2737	ilog.Printf("waiting...")
2738	for i := 0; i < workinprogress; i++ {
2739		<-readyalready
2740	}
2741	ilog.Printf("apocalypse")
2742	os.Exit(0)
2743}
2744
2745var preservehooks []func()
2746
2747func bgmonitor() {
2748	for {
2749		when := time.Now().Add(-3 * 24 * time.Hour).UTC().Format(dbtimeformat)
2750		_, err := stmtDeleteOldXonkers.Exec("pubkey", when)
2751		if err != nil {
2752			elog.Printf("error deleting old xonkers: %s", err)
2753		}
2754		zaggies.Flush()
2755		time.Sleep(50 * time.Minute)
2756	}
2757}
2758
2759func emuinit() {
2760	var emunames []string
2761	dir, err := os.Open(dataDir + "/emus")
2762	if err == nil {
2763		emunames, _ = dir.Readdirnames(0)
2764		dir.Close()
2765	}
2766	for _, e := range emunames {
2767		if len(e) <= 4 {
2768			continue
2769		}
2770		ext := e[len(e)-4:]
2771		emu := Emu{
2772			ID:   fmt.Sprintf("/emu/%s", e),
2773			Name: e[:len(e)-4],
2774			Type: "image/" + ext[1:],
2775		}
2776		allemus = append(allemus, emu)
2777	}
2778	sort.Slice(allemus, func(i, j int) bool {
2779		return allemus[i].Name < allemus[j].Name
2780	})
2781}
2782
2783func redirectPretty(w http.ResponseWriter, r *http.Request) {
2784	last := path.Base(r.URL.Path)
2785	name := mux.Vars(r)["name"]
2786	aturl := "/@" + name
2787
2788	if last == name {
2789		last = ""
2790	}
2791	http.Redirect(w, r, path.Join(aturl, last), http.StatusMovedPermanently)
2792}
2793
2794func serve() {
2795	db := opendatabase()
2796	login.Init(login.InitArgs{Db: db, Logger: ilog, Insecure: develMode, SameSiteStrict: !develMode})
2797
2798	listener, err := openListener()
2799	if err != nil {
2800		elog.Fatal(err)
2801	}
2802	runBackendServer()
2803	go enditall()
2804	go redeliverator()
2805	go tracker()
2806	go bgmonitor()
2807	go qotd()
2808	loadLingo()
2809	emuinit()
2810
2811	readviews = templates.Load(develMode,
2812		viewDir+"/views/honkpage.html",
2813		viewDir+"/views/honkfrags.html",
2814		viewDir+"/views/honkers.html",
2815		viewDir+"/views/chatter.html",
2816		viewDir+"/views/hfcs.html",
2817		viewDir+"/views/combos.html",
2818		viewDir+"/views/honkform.html",
2819		viewDir+"/views/honk.html",
2820		viewDir+"/views/account.html",
2821		viewDir+"/views/about.html",
2822		viewDir+"/views/funzone.html",
2823		viewDir+"/views/login.html",
2824		viewDir+"/views/xzone.html",
2825		viewDir+"/views/msg.html",
2826		viewDir+"/views/header.html",
2827		viewDir+"/views/onts.html",
2828		viewDir+"/views/emus.html",
2829		viewDir+"/views/honkpage.js",
2830	)
2831	if !develMode {
2832		assets := []string{
2833			viewDir + "/views/style.css",
2834			dataDir + "/views/local.css",
2835			viewDir + "/views/honkpage.js",
2836			viewDir + "/views/misc.js",
2837			dataDir + "/views/local.js",
2838			viewDir + "/views/manifest.webmanifest",
2839			viewDir + "/views/sw.js",
2840		}
2841		for _, s := range assets {
2842			savedassetparams[s] = getassetparam(s)
2843		}
2844		loadAvatarColors()
2845	}
2846
2847	for _, h := range preservehooks {
2848		h()
2849	}
2850
2851	mux := mux.NewRouter()
2852	mux.Use(login.Checker)
2853
2854	mux.Handle("/api", login.TokenRequired(http.HandlerFunc(apihandler)))
2855
2856	posters := mux.Methods("POST").Subrouter()
2857	getters := mux.Methods("GET").Subrouter()
2858
2859	getters.HandleFunc("/", homepage)
2860	getters.HandleFunc("/home", homepage)
2861	getters.HandleFunc("/front", homepage)
2862	getters.HandleFunc("/events", homepage)
2863	getters.HandleFunc("/robots.txt", nomoroboto)
2864	getters.HandleFunc("/rss", showrss)
2865	getters.HandleFunc("/@{name:[\\pL[:digit:]]+}", showuser)
2866	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}", redirectPretty)
2867	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/"+honkSep+"/{xid:[\\pL[:digit:]]+}", showonehonk)
2868	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/rss", showrss)
2869	posters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/inbox", inbox)
2870	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/outbox", outbox)
2871	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/followers", emptiness)
2872	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/following", emptiness)
2873	getters.HandleFunc("/a", avatate)
2874	getters.HandleFunc("/o", thelistingoftheontologies)
2875	getters.HandleFunc("/o/{name:.+}", showontology)
2876	getters.HandleFunc("/d/{xid:[\\pL[:digit:].]+}", servefile)
2877	getters.HandleFunc("/emu/{emu:[^.]*[^/]+}", serveemu)
2878	getters.HandleFunc("/meme/{meme:[^.]*[^/]+}", servememe)
2879	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
2880	getters.HandleFunc("/.well-known/nodeinfo", knowninformation)
2881	getters.HandleFunc("/nodeinfo/2.0", actualinformation)
2882
2883	getters.HandleFunc("/flag/{code:.+}", showflag)
2884
2885	getters.HandleFunc("/server", serveractor)
2886	posters.HandleFunc("/server/inbox", serverinbox)
2887	posters.HandleFunc("/inbox", serverinbox)
2888
2889	posters.HandleFunc("/csp-violation", fiveoh)
2890
2891	getters.HandleFunc("/style.css", serveviewasset)
2892	getters.HandleFunc("/sw.js", serveviewasset)
2893	getters.HandleFunc("/honkpage.js", serveviewasset)
2894	getters.HandleFunc("/misc.js", serveviewasset)
2895	getters.HandleFunc("/local.css", servedataasset)
2896	getters.HandleFunc("/local.js", servedataasset)
2897	getters.HandleFunc("/icon.png", servedataasset)
2898	getters.HandleFunc("/favicon.ico", servedataasset)
2899	getters.HandleFunc("/manifest.webmanifest", serveviewasset)
2900
2901	getters.HandleFunc("/about", servehtml)
2902	getters.HandleFunc("/login", servehtml)
2903	posters.HandleFunc("/dologin", login.LoginFunc)
2904	getters.HandleFunc("/logout", login.LogoutFunc)
2905	getters.HandleFunc("/help/{name:[\\pL[:digit:]_.-]+}", servehelp)
2906
2907	loggedin := mux.NewRoute().Subrouter()
2908	loggedin.Use(login.Required)
2909	loggedin.HandleFunc("/first", homepage)
2910	loggedin.HandleFunc("/chatter", showchatter)
2911	loggedin.Handle("/sendchonk", login.CSRFWrap("sendchonk", http.HandlerFunc(submitchonk)))
2912	loggedin.HandleFunc("/saved", homepage)
2913	loggedin.HandleFunc("/account", accountpage)
2914	loggedin.HandleFunc("/funzone", showfunzone)
2915	loggedin.HandleFunc("/chpass", dochpass)
2916	loggedin.HandleFunc("/atme", homepage)
2917	loggedin.HandleFunc("/longago", homepage)
2918	loggedin.HandleFunc("/hfcs", hfcspage)
2919	loggedin.HandleFunc("/xzone", xzone)
2920	loggedin.HandleFunc("/newhonk", newhonkpage)
2921	loggedin.HandleFunc("/edit", edithonkpage)
2922	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(websubmithonk)))
2923	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
2924	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
2925	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
2926	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
2927	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
2928	loggedin.HandleFunc("/honkers", showhonkers)
2929	loggedin.HandleFunc("/h/{name:[\\pL[:digit:]_.-]+}", showhonker)
2930	loggedin.HandleFunc("/h", showhonker)
2931	loggedin.HandleFunc("/c/{name:[\\pL[:digit:]_.-]+}", showcombo)
2932	loggedin.HandleFunc("/c", showcombos)
2933	loggedin.HandleFunc("/t", showconvoy)
2934	loggedin.HandleFunc("/q", showsearch)
2935	loggedin.HandleFunc("/hydra", webhydra)
2936	loggedin.HandleFunc("/emus", showemus)
2937	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(websubmithonker)))
2938
2939	// mastoshit
2940	getters.HandleFunc("/oauth/authorize", oauthorize)
2941	getters.HandleFunc("/api/v1/instance", instance)
2942	posters.HandleFunc("/api/v1/apps", apiapps)
2943
2944	err = http.Serve(listener, mux)
2945	if err != nil {
2946		elog.Fatal(err)
2947	}
2948}