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	"context"
  21	"database/sql"
  22	"fmt"
  23	"html/template"
  24	"io"
  25	notrand "math/rand"
  26	"mime/multipart"
  27	"net/http"
  28	"net/url"
  29	"os"
  30	"os/signal"
  31	"path"
  32	"regexp"
  33	"sort"
  34	"strconv"
  35	"strings"
  36	"syscall"
  37	"time"
  38	"unicode/utf8"
  39
  40	"github.com/gorilla/handlers"
  41	"github.com/gorilla/mux"
  42	"humungus.tedunangst.com/r/webs/cache"
  43	"humungus.tedunangst.com/r/webs/gencache"
  44	"humungus.tedunangst.com/r/webs/httpsig"
  45	"humungus.tedunangst.com/r/webs/junk"
  46	"humungus.tedunangst.com/r/webs/login"
  47	"humungus.tedunangst.com/r/webs/rss"
  48	"humungus.tedunangst.com/r/webs/templates"
  49)
  50
  51var readviews *templates.Template
  52
  53var userSep = "u"
  54var honkSep = "h"
  55
  56var develMode = false
  57
  58var allemus []Emu
  59
  60func getuserstyle(u *login.UserInfo) template.HTMLAttr {
  61	if u == nil {
  62		return ""
  63	}
  64	user, _ := butwhatabout(u.Username)
  65	class := template.HTMLAttr("")
  66	if user.Options.SkinnyCSS {
  67		class += `class="skinny"`
  68	}
  69	return class
  70}
  71
  72func getmaplink(u *login.UserInfo) string {
  73	if u == nil {
  74		return "osm"
  75	}
  76	user, _ := butwhatabout(u.Username)
  77	ml := user.Options.MapLink
  78	if ml == "" {
  79		ml = "osm"
  80	}
  81	return ml
  82}
  83
  84func getInfo(r *http.Request) map[string]interface{} {
  85	templinfo := make(map[string]interface{})
  86	templinfo["StyleParam"] = getassetparam(viewDir + "/views/style.css")
  87	templinfo["LocalStyleParam"] = getassetparam(dataDir + "/views/local.css")
  88	templinfo["JSParam"] = getassetparam(viewDir + "/views/honkpage.js")
  89	templinfo["MiscJSParam"] = getassetparam(viewDir + "/views/misc.js")
  90	templinfo["LocalJSParam"] = getassetparam(dataDir + "/views/local.js")
  91	templinfo["ServerName"] = serverName
  92	templinfo["IconName"] = iconName
  93	templinfo["UserSep"] = userSep
  94	if r == nil {
  95		return templinfo
  96	}
  97	if u := login.GetUserInfo(r); u != nil {
  98		templinfo["UserInfo"], _ = butwhatabout(u.Username)
  99		templinfo["UserStyle"] = getuserstyle(u)
 100		var combos []string
 101		combocache.Get(u.UserID, &combos)
 102		templinfo["Combos"] = combos
 103	}
 104	return templinfo
 105}
 106
 107var oldnews = gencache.New(gencache.Options[string, []byte]{
 108	Fill: func(url string) ([]byte, bool) {
 109		templinfo := getInfo(nil)
 110		var honks []*Honk
 111		var userid int64 = -1
 112
 113		templinfo["ServerMessage"] = serverMsg
 114		switch url {
 115		case "/events":
 116			honks = geteventhonks(userid)
 117			templinfo["ServerMessage"] = "some recent and upcoming events"
 118		default:
 119			templinfo["ShowRSS"] = true
 120			honks = getpublichonks()
 121		}
 122		reverbolate(userid, honks)
 123		templinfo["Honks"] = honks
 124		templinfo["MapLink"] = getmaplink(nil)
 125		var buf bytes.Buffer
 126		err := readviews.Execute(&buf, "honkpage.html", templinfo)
 127		if err != nil {
 128			elog.Print(err)
 129		}
 130		return buf.Bytes(), true
 131
 132	},
 133	Duration: 1 * time.Minute,
 134})
 135
 136func lonelypage(w http.ResponseWriter, r *http.Request) {
 137	page, _ := oldnews.Get(r.URL.Path)
 138	if !develMode {
 139		w.Header().Set("Cache-Control", "max-age=60")
 140	}
 141	w.Write(page)
 142}
 143
 144func homepage(w http.ResponseWriter, r *http.Request) {
 145	u := login.GetUserInfo(r)
 146	if u == nil {
 147		lonelypage(w, r)
 148		return
 149	}
 150	templinfo := getInfo(r)
 151	var honks []*Honk
 152	var userid int64 = -1
 153
 154	templinfo["ServerMessage"] = serverMsg
 155	if u == nil || r.URL.Path == "/front" {
 156		switch r.URL.Path {
 157		case "/events":
 158			honks = geteventhonks(userid)
 159			templinfo["ServerMessage"] = "some recent and upcoming events"
 160		default:
 161			templinfo["ShowRSS"] = true
 162			honks = getpublichonks()
 163		}
 164	} else {
 165		userid = u.UserID
 166		switch r.URL.Path {
 167		case "/atme":
 168			templinfo["ServerMessage"] = "at me!"
 169			templinfo["PageName"] = "atme"
 170			honks = gethonksforme(userid, 0)
 171			honks = osmosis(honks, userid, false)
 172			menewnone(userid)
 173			templinfo["UserInfo"], _ = butwhatabout(u.Username)
 174		case "/longago":
 175			templinfo["ServerMessage"] = "long ago and far away!"
 176			templinfo["PageName"] = "longago"
 177			honks = gethonksfromlongago(userid, 0)
 178			honks = osmosis(honks, userid, false)
 179		case "/events":
 180			templinfo["ServerMessage"] = "some recent and upcoming events"
 181			templinfo["PageName"] = "events"
 182			honks = geteventhonks(userid)
 183			honks = osmosis(honks, userid, true)
 184		case "/first":
 185			templinfo["PageName"] = "first"
 186			honks = gethonksforuserfirstclass(userid, 0)
 187			honks = osmosis(honks, userid, true)
 188		case "/saved":
 189			templinfo["ServerMessage"] = "saved honks"
 190			templinfo["PageName"] = "saved"
 191			honks = getsavedhonks(userid, 0)
 192		default:
 193			templinfo["PageName"] = "home"
 194			honks = gethonksforuser(userid, 0)
 195			honks = osmosis(honks, userid, true)
 196		}
 197		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 198	}
 199
 200	honkpage(w, u, honks, templinfo)
 201}
 202
 203func showemus(w http.ResponseWriter, r *http.Request) {
 204	templinfo := getInfo(r)
 205	templinfo["Emus"] = allemus
 206	err := readviews.Execute(w, "emus.html", templinfo)
 207	if err != nil {
 208		elog.Print(err)
 209	}
 210}
 211
 212func showfunzone(w http.ResponseWriter, r *http.Request) {
 213	var emunames, memenames []string
 214	emuext := make(map[string]string)
 215	dir, err := os.Open(dataDir + "/emus")
 216	if err == nil {
 217		emunames, _ = dir.Readdirnames(0)
 218		dir.Close()
 219	}
 220	for i, e := range emunames {
 221		if len(e) > 4 {
 222			emunames[i] = e[:len(e)-4]
 223			emuext[emunames[i]] = e[len(e)-4:]
 224		}
 225	}
 226	dir, err = os.Open(dataDir + "/memes")
 227	if err == nil {
 228		memenames, _ = dir.Readdirnames(0)
 229		dir.Close()
 230	}
 231	sort.Strings(emunames)
 232	sort.Strings(memenames)
 233	templinfo := getInfo(r)
 234	templinfo["Emus"] = emunames
 235	templinfo["Emuext"] = emuext
 236	templinfo["Memes"] = memenames
 237	err = readviews.Execute(w, "funzone.html", templinfo)
 238	if err != nil {
 239		elog.Print(err)
 240	}
 241}
 242
 243func showrss(w http.ResponseWriter, r *http.Request) {
 244	name := mux.Vars(r)["name"]
 245
 246	var honks []*Honk
 247	if name != "" {
 248		honks = gethonksbyuser(name, false, 0)
 249	} else {
 250		honks = getpublichonks()
 251	}
 252	reverbolate(-1, honks)
 253
 254	home := fmt.Sprintf("https://%s/", serverName)
 255	base := home
 256	if name != "" {
 257		home += "u/" + name
 258		name += " "
 259	}
 260	feed := rss.Feed{
 261		Title:       name + "honk",
 262		Link:        home,
 263		Description: name + "honk rss",
 264		Image: &rss.Image{
 265			URL:   base + "icon.png",
 266			Title: name + "honk rss",
 267			Link:  home,
 268		},
 269	}
 270	var modtime time.Time
 271	for _, honk := range honks {
 272		if !firstclass(honk) {
 273			continue
 274		}
 275		desc := string(honk.HTML)
 276		if t := honk.Time; t != nil {
 277			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 278			if t.Duration != 0 {
 279				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 280			}
 281		}
 282		if p := honk.Place; p != nil {
 283			desc += string(templates.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 284				p.Url, p.Name, p.Latitude, p.Longitude))
 285		}
 286		for _, d := range honk.Donks {
 287			desc += string(templates.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 288				d.URL, d.Desc))
 289			if strings.HasPrefix(d.Media, "image") {
 290				desc += string(templates.Sprintf(`<img src="%s">`, d.URL))
 291			}
 292		}
 293
 294		feed.Items = append(feed.Items, &rss.Item{
 295			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 296			Description: rss.CData{Data: desc},
 297			Link:        honk.URL,
 298			PubDate:     honk.Date.Format(time.RFC1123),
 299			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 300		})
 301		if honk.Date.After(modtime) {
 302			modtime = honk.Date
 303		}
 304	}
 305	if !develMode {
 306		w.Header().Set("Cache-Control", "max-age=300")
 307		w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 308	}
 309
 310	err := feed.Write(w)
 311	if err != nil {
 312		elog.Printf("error writing rss: %s", err)
 313	}
 314}
 315
 316func crappola(j junk.Junk) bool {
 317	t, _ := j.GetString("type")
 318	a, _ := j.GetString("actor")
 319	o, _ := j.GetString("object")
 320	if t == "Delete" && a == o {
 321		dlog.Printf("crappola from %s", a)
 322		return true
 323	}
 324	return false
 325}
 326
 327func ping(user *WhatAbout, who string) {
 328	if targ := fullname(who, user.ID); targ != "" {
 329		who = targ
 330	}
 331	if !strings.HasPrefix(who, "https:") {
 332		who = gofish(who)
 333	}
 334	if who == "" {
 335		ilog.Printf("nobody to ping!")
 336		return
 337	}
 338	var box *Box
 339	ok := boxofboxes.Get(who, &box)
 340	if !ok {
 341		ilog.Printf("no inbox to ping %s", who)
 342		return
 343	}
 344	ilog.Printf("sending ping to %s", box.In)
 345	j := junk.New()
 346	j["@context"] = itiswhatitis
 347	j["type"] = "Ping"
 348	j["id"] = user.URL + "/ping/" + xfiltrate()
 349	j["actor"] = user.URL
 350	j["to"] = who
 351	ki := ziggy(user.ID)
 352	if ki == nil {
 353		return
 354	}
 355	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 356	if err != nil {
 357		elog.Printf("can't send ping: %s", err)
 358		return
 359	}
 360	ilog.Printf("sent ping to %s: %s", who, j["id"])
 361}
 362
 363func pong(user *WhatAbout, who string, obj string) {
 364	var box *Box
 365	ok := boxofboxes.Get(who, &box)
 366	if !ok {
 367		ilog.Printf("no inbox to pong %s", who)
 368		return
 369	}
 370	j := junk.New()
 371	j["@context"] = itiswhatitis
 372	j["type"] = "Pong"
 373	j["id"] = user.URL + "/pong/" + xfiltrate()
 374	j["actor"] = user.URL
 375	j["to"] = who
 376	j["object"] = obj
 377	ki := ziggy(user.ID)
 378	if ki == nil {
 379		return
 380	}
 381	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 382	if err != nil {
 383		elog.Printf("can't send pong: %s", err)
 384		return
 385	}
 386}
 387
 388func inbox(w http.ResponseWriter, r *http.Request) {
 389	name := mux.Vars(r)["name"]
 390	user, err := butwhatabout(name)
 391	if err != nil {
 392		http.NotFound(w, r)
 393		return
 394	}
 395	if stealthmode(user.ID, r) {
 396		http.NotFound(w, r)
 397		return
 398	}
 399	var buf bytes.Buffer
 400	limiter := io.LimitReader(r.Body, 1*1024*1024)
 401	io.Copy(&buf, limiter)
 402	payload := buf.Bytes()
 403	j, err := junk.FromBytes(payload)
 404	if err != nil {
 405		ilog.Printf("bad payload: %s", err)
 406		ilog.Writer().Write(payload)
 407		ilog.Writer().Write([]byte{'\n'})
 408		return
 409	}
 410
 411	if crappola(j) {
 412		return
 413	}
 414	what, _ := j.GetString("type")
 415	obj, _ := j.GetString("object")
 416	if what == "Like" || what == "Dislike" || (what == "EmojiReact" && originate(obj) != serverName) {
 417		return
 418	}
 419	who, _ := j.GetString("actor")
 420	if rejectactor(user.ID, who) {
 421		return
 422	}
 423
 424	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 425	if err != nil && keyname != "" {
 426		savingthrow(keyname)
 427		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 428	}
 429	if err != nil {
 430		ilog.Printf("inbox message failed signature for %s from %s: %s", keyname, r.Header.Get("X-Forwarded-For"), err)
 431		if keyname != "" {
 432			ilog.Printf("bad signature from %s", keyname)
 433		}
 434		http.Error(w, "what did you call me?", http.StatusTeapot)
 435		return
 436	}
 437	origin := keymatch(keyname, who)
 438	if origin == "" {
 439		ilog.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 440		return
 441	}
 442
 443	switch what {
 444	case "Ping":
 445		id, _ := j.GetString("id")
 446		ilog.Printf("ping from %s: %s", who, id)
 447		pong(user, who, id)
 448	case "Pong":
 449		ilog.Printf("pong from %s: %s", who, obj)
 450	case "Follow":
 451		if obj != user.URL {
 452			ilog.Printf("can't follow %s", obj)
 453			return
 454		}
 455		followme(user, who, who, j)
 456	case "Accept":
 457		followyou2(user, j)
 458	case "Reject":
 459		nofollowyou2(user, j)
 460	case "Update":
 461		obj, ok := j.GetMap("object")
 462		if ok {
 463			what, _ := obj.GetString("type")
 464			switch what {
 465			case "Service":
 466				fallthrough
 467			case "Person":
 468				return
 469			case "Question":
 470				return
 471			}
 472		}
 473		go xonksaver(user, j, origin)
 474	case "Undo":
 475		obj, ok := j.GetMap("object")
 476		if !ok {
 477			folxid, ok := j.GetString("object")
 478			if ok && originate(folxid) == origin {
 479				unfollowme(user, "", "", j)
 480			}
 481			return
 482		}
 483		what, _ := obj.GetString("type")
 484		switch what {
 485		case "Follow":
 486			unfollowme(user, who, who, j)
 487		case "Announce":
 488			xid, _ := obj.GetString("object")
 489			dlog.Printf("undo announce: %s", xid)
 490		case "Like":
 491		default:
 492			ilog.Printf("unknown undo: %s", what)
 493		}
 494	case "EmojiReact":
 495		obj, ok := j.GetString("object")
 496		if ok {
 497			content, _ := j.GetString("content")
 498			addreaction(user, obj, who, content)
 499		}
 500	default:
 501		go saveandcheck(user, j, origin)
 502	}
 503}
 504
 505func saveandcheck(user *WhatAbout, j junk.Junk, origin string) {
 506	xonk := xonksaver(user, j, origin)
 507	if xonk == nil {
 508		return
 509	}
 510	if sname := shortname(user.ID, xonk.Honker); sname == "" {
 511		dlog.Printf("received unexpected activity from %s", xonk.Honker)
 512		if xonk.Whofore == 0 {
 513			dlog.Printf("it's not even for me!")
 514		}
 515	}
 516}
 517
 518func serverinbox(w http.ResponseWriter, r *http.Request) {
 519	user := getserveruser()
 520	if stealthmode(user.ID, r) {
 521		http.NotFound(w, r)
 522		return
 523	}
 524	var buf bytes.Buffer
 525	io.Copy(&buf, r.Body)
 526	payload := buf.Bytes()
 527	j, err := junk.FromBytes(payload)
 528	if err != nil {
 529		ilog.Printf("bad payload: %s", err)
 530		ilog.Writer().Write(payload)
 531		ilog.Writer().Write([]byte{'\n'})
 532		return
 533	}
 534	if crappola(j) {
 535		return
 536	}
 537	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 538	if err != nil && keyname != "" {
 539		savingthrow(keyname)
 540		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 541	}
 542	if err != nil {
 543		ilog.Printf("inbox message failed signature for %s from %s: %s", keyname, r.Header.Get("X-Forwarded-For"), err)
 544		if keyname != "" {
 545			ilog.Printf("bad signature from %s", keyname)
 546		}
 547		http.Error(w, "what did you call me?", http.StatusTeapot)
 548		return
 549	}
 550	who, _ := j.GetString("actor")
 551	origin := keymatch(keyname, who)
 552	if origin == "" {
 553		ilog.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 554		return
 555	}
 556	if rejectactor(user.ID, who) {
 557		return
 558	}
 559	re_ont := regexp.MustCompile("https://" + serverName + "/o/([\\pL[:digit:]]+)")
 560	what, _ := j.GetString("type")
 561	dlog.Printf("server got a %s", what)
 562	switch what {
 563	case "Follow":
 564		obj, _ := j.GetString("object")
 565		if obj == user.URL {
 566			ilog.Printf("can't follow the server!")
 567			return
 568		}
 569		m := re_ont.FindStringSubmatch(obj)
 570		if len(m) != 2 {
 571			ilog.Printf("not sure how to handle this")
 572			return
 573		}
 574		ont := "#" + m[1]
 575
 576		followme(user, who, ont, j)
 577	case "Undo":
 578		obj, ok := j.GetMap("object")
 579		if !ok {
 580			ilog.Printf("unknown undo no object")
 581			return
 582		}
 583		what, _ := obj.GetString("type")
 584		if what != "Follow" {
 585			ilog.Printf("unknown undo: %s", what)
 586			return
 587		}
 588		targ, _ := obj.GetString("object")
 589		m := re_ont.FindStringSubmatch(targ)
 590		if len(m) != 2 {
 591			ilog.Printf("not sure how to handle this")
 592			return
 593		}
 594		ont := "#" + m[1]
 595		unfollowme(user, who, ont, j)
 596	default:
 597		ilog.Printf("unhandled server activity: %s", what)
 598		dumpactivity(j)
 599	}
 600}
 601
 602func serveractor(w http.ResponseWriter, r *http.Request) {
 603	user := getserveruser()
 604	if stealthmode(user.ID, r) {
 605		http.NotFound(w, r)
 606		return
 607	}
 608	j := junkuser(user)
 609	j.Write(w)
 610}
 611
 612func ximport(w http.ResponseWriter, r *http.Request) {
 613	u := login.GetUserInfo(r)
 614	xid := strings.TrimSpace(r.FormValue("q"))
 615	xonk := getxonk(u.UserID, xid)
 616	if xonk == nil {
 617		p, _ := investigate(xid)
 618		if p != nil {
 619			xid = p.XID
 620		}
 621		j, err := GetJunk(u.UserID, xid)
 622		if err != nil {
 623			http.Error(w, "error getting external object", http.StatusInternalServerError)
 624			ilog.Printf("error getting external object: %s", err)
 625			return
 626		}
 627		allinjest(originate(xid), j)
 628		dlog.Printf("importing %s", xid)
 629		user, _ := butwhatabout(u.Username)
 630
 631		info, _ := somethingabout(j)
 632		if info == nil {
 633			xonk = xonksaver(user, j, originate(xid))
 634		} else if info.What == SomeActor {
 635			outbox, _ := j.GetString("outbox")
 636			gimmexonks(user, outbox)
 637			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 638			return
 639		} else if info.What == SomeCollection {
 640			gimmexonks(user, xid)
 641			http.Redirect(w, r, "/xzone", http.StatusSeeOther)
 642			return
 643		}
 644	}
 645	convoy := ""
 646	if xonk != nil {
 647		convoy = xonk.Convoy
 648	}
 649	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 650}
 651
 652func xzone(w http.ResponseWriter, r *http.Request) {
 653	u := login.GetUserInfo(r)
 654	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 655	if err != nil {
 656		elog.Printf("query err: %s", err)
 657		return
 658	}
 659	defer rows.Close()
 660	var honkers []Honker
 661	for rows.Next() {
 662		var xid string
 663		rows.Scan(&xid)
 664		honkers = append(honkers, Honker{XID: xid})
 665	}
 666	rows.Close()
 667	for i := range honkers {
 668		_, honkers[i].Handle = handles(honkers[i].XID)
 669	}
 670	templinfo := getInfo(r)
 671	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 672	templinfo["Honkers"] = honkers
 673	err = readviews.Execute(w, "xzone.html", templinfo)
 674	if err != nil {
 675		elog.Print(err)
 676	}
 677}
 678
 679var oldoutbox = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
 680	user, err := butwhatabout(name)
 681	if err != nil {
 682		return nil, false
 683	}
 684	honks := gethonksbyuser(name, false, 0)
 685	if len(honks) > 20 {
 686		honks = honks[0:20]
 687	}
 688
 689	var jonks []junk.Junk
 690	for _, h := range honks {
 691		j, _ := jonkjonk(user, h)
 692		jonks = append(jonks, j)
 693	}
 694
 695	j := junk.New()
 696	j["@context"] = itiswhatitis
 697	j["id"] = user.URL + "/outbox"
 698	j["attributedTo"] = user.URL
 699	j["type"] = "OrderedCollection"
 700	j["totalItems"] = len(jonks)
 701	j["orderedItems"] = jonks
 702
 703	return j.ToBytes(), true
 704}, Duration: 1 * time.Minute})
 705
 706func outbox(w http.ResponseWriter, r *http.Request) {
 707	name := mux.Vars(r)["name"]
 708	user, err := butwhatabout(name)
 709	if err != nil {
 710		http.NotFound(w, r)
 711		return
 712	}
 713	if stealthmode(user.ID, r) {
 714		http.NotFound(w, r)
 715		return
 716	}
 717	var j []byte
 718	ok := oldoutbox.Get(name, &j)
 719	if ok {
 720		w.Header().Set("Content-Type", theonetruename)
 721		w.Write(j)
 722	} else {
 723		http.NotFound(w, r)
 724	}
 725}
 726
 727var oldempties = cache.New(cache.Options{Filler: func(url string) ([]byte, bool) {
 728	colname := "/followers"
 729	if strings.HasSuffix(url, "/following") {
 730		colname = "/following"
 731	}
 732	user := fmt.Sprintf("https://%s%s", serverName, url[:len(url)-10])
 733	j := junk.New()
 734	j["@context"] = itiswhatitis
 735	j["id"] = user + colname
 736	j["attributedTo"] = user
 737	j["type"] = "OrderedCollection"
 738	j["totalItems"] = 0
 739	j["orderedItems"] = []junk.Junk{}
 740
 741	return j.ToBytes(), true
 742}})
 743
 744func emptiness(w http.ResponseWriter, r *http.Request) {
 745	name := mux.Vars(r)["name"]
 746	user, err := butwhatabout(name)
 747	if err != nil {
 748		http.NotFound(w, r)
 749		return
 750	}
 751	if stealthmode(user.ID, r) {
 752		http.NotFound(w, r)
 753		return
 754	}
 755	var j []byte
 756	ok := oldempties.Get(r.URL.Path, &j)
 757	if ok {
 758		w.Header().Set("Content-Type", theonetruename)
 759		w.Write(j)
 760	} else {
 761		http.NotFound(w, r)
 762	}
 763}
 764
 765func showuser(w http.ResponseWriter, r *http.Request) {
 766	name := mux.Vars(r)["name"]
 767	user, err := butwhatabout(name)
 768	if err != nil {
 769		ilog.Printf("user not found %s: %s", name, err)
 770		http.NotFound(w, r)
 771		return
 772	}
 773	if stealthmode(user.ID, r) {
 774		http.NotFound(w, r)
 775		return
 776	}
 777	if friendorfoe(r.Header.Get("Accept")) {
 778		j, ok := asjonker(name)
 779		if ok {
 780			w.Header().Set("Content-Type", theonetruename)
 781			w.Write(j)
 782		} else {
 783			http.NotFound(w, r)
 784		}
 785		return
 786	}
 787	u := login.GetUserInfo(r)
 788	if u != nil && u.Username != name {
 789		u = nil
 790	}
 791	honks := gethonksbyuser(name, u != nil, 0)
 792	templinfo := getInfo(r)
 793	templinfo["PageName"] = "user"
 794	templinfo["PageArg"] = name
 795	templinfo["Name"] = user.Name
 796	templinfo["WhatAbout"] = user.HTAbout
 797	templinfo["ServerMessage"] = ""
 798	templinfo["APAltLink"] = templates.Sprintf("<link href='%s' rel='alternate' type='application/activity+json'>", user.URL)
 799	if u != nil {
 800		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 801	}
 802	honkpage(w, u, honks, templinfo)
 803}
 804
 805func showhonker(w http.ResponseWriter, r *http.Request) {
 806	u := login.GetUserInfo(r)
 807	name := mux.Vars(r)["name"]
 808	var honks []*Honk
 809	if name == "" {
 810		name = r.FormValue("xid")
 811		honks = gethonksbyxonker(u.UserID, name, 0)
 812	} else {
 813		honks = gethonksbyhonker(u.UserID, name, 0)
 814	}
 815	miniform := templates.Sprintf(`<form action="/submithonker" method="POST">
 816<input type="hidden" name="CSRF" value="%s">
 817<input type="hidden" name="url" value="%s">
 818<button tabindex=1 name="add honker" value="add honker">add honker</button>
 819</form>`, login.GetCSRF("submithonker", r), name)
 820	msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>%s`, name, name, miniform)
 821	templinfo := getInfo(r)
 822	templinfo["PageName"] = "honker"
 823	templinfo["PageArg"] = name
 824	templinfo["ServerMessage"] = msg
 825	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 826	honkpage(w, u, honks, templinfo)
 827}
 828
 829func showcombo(w http.ResponseWriter, r *http.Request) {
 830	name := mux.Vars(r)["name"]
 831	u := login.GetUserInfo(r)
 832	honks := gethonksbycombo(u.UserID, name, 0)
 833	honks = osmosis(honks, u.UserID, true)
 834	templinfo := getInfo(r)
 835	templinfo["PageName"] = "combo"
 836	templinfo["PageArg"] = name
 837	templinfo["ServerMessage"] = "honks by combo: " + name
 838	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 839	honkpage(w, u, honks, templinfo)
 840}
 841func showconvoy(w http.ResponseWriter, r *http.Request) {
 842	c := r.FormValue("c")
 843	u := login.GetUserInfo(r)
 844	honks := gethonksbyconvoy(u.UserID, c, 0)
 845	templinfo := getInfo(r)
 846	if len(honks) > 0 {
 847		templinfo["TopHID"] = honks[0].ID
 848	}
 849	honks = osmosis(honks, u.UserID, false)
 850	//reversehonks(honks)
 851	honks = threadsort(honks)
 852	templinfo["PageName"] = "convoy"
 853	templinfo["PageArg"] = c
 854	templinfo["ServerMessage"] = "honks in convoy: " + c
 855	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 856	honkpage(w, u, honks, templinfo)
 857}
 858func showsearch(w http.ResponseWriter, r *http.Request) {
 859	q := r.FormValue("q")
 860	if strings.HasPrefix(q, "https://") {
 861		ximport(w, r)
 862		return
 863	}
 864	u := login.GetUserInfo(r)
 865	honks := gethonksbysearch(u.UserID, q, 0)
 866	templinfo := getInfo(r)
 867	templinfo["PageName"] = "search"
 868	templinfo["PageArg"] = q
 869	templinfo["ServerMessage"] = "honks for search: " + q
 870	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 871	honkpage(w, u, honks, templinfo)
 872}
 873func showontology(w http.ResponseWriter, r *http.Request) {
 874	name := mux.Vars(r)["name"]
 875	u := login.GetUserInfo(r)
 876	var userid int64 = -1
 877	if u != nil {
 878		userid = u.UserID
 879	}
 880	honks := gethonksbyontology(userid, "#"+name, 0)
 881	if friendorfoe(r.Header.Get("Accept")) {
 882		if len(honks) > 40 {
 883			honks = honks[0:40]
 884		}
 885
 886		var xids []string
 887		for _, h := range honks {
 888			xids = append(xids, h.XID)
 889		}
 890
 891		user := getserveruser()
 892
 893		j := junk.New()
 894		j["@context"] = itiswhatitis
 895		j["id"] = fmt.Sprintf("https://%s/o/%s", serverName, name)
 896		j["name"] = "#" + name
 897		j["attributedTo"] = user.URL
 898		j["type"] = "OrderedCollection"
 899		j["totalItems"] = len(xids)
 900		j["orderedItems"] = xids
 901
 902		j.Write(w)
 903		return
 904	}
 905
 906	templinfo := getInfo(r)
 907	templinfo["ServerMessage"] = "honks by ontology: " + name
 908	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 909	honkpage(w, u, honks, templinfo)
 910}
 911
 912type Ont struct {
 913	Name  string
 914	Count int64
 915}
 916
 917func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 918	u := login.GetUserInfo(r)
 919	var userid int64 = -1
 920	if u != nil {
 921		userid = u.UserID
 922	}
 923	rows, err := stmtAllOnts.Query(userid)
 924	if err != nil {
 925		elog.Printf("selection error: %s", err)
 926		return
 927	}
 928	defer rows.Close()
 929	var onts []Ont
 930	for rows.Next() {
 931		var o Ont
 932		err := rows.Scan(&o.Name, &o.Count)
 933		if err != nil {
 934			elog.Printf("error scanning ont: %s", err)
 935			continue
 936		}
 937		if utf8.RuneCountInString(o.Name) > 24 {
 938			continue
 939		}
 940		o.Name = o.Name[1:]
 941		onts = append(onts, o)
 942	}
 943	sort.Slice(onts, func(i, j int) bool {
 944		return onts[i].Name < onts[j].Name
 945	})
 946	if u == nil && !develMode {
 947		w.Header().Set("Cache-Control", "max-age=300")
 948	}
 949	templinfo := getInfo(r)
 950	templinfo["Onts"] = onts
 951	templinfo["FirstRune"] = func(s string) rune { r, _ := utf8.DecodeRuneInString(s); return r }
 952	err = readviews.Execute(w, "onts.html", templinfo)
 953	if err != nil {
 954		elog.Print(err)
 955	}
 956}
 957
 958type Track struct {
 959	xid string
 960	who string
 961}
 962
 963func getbacktracks(xid string) []string {
 964	c := make(chan bool)
 965	dumptracks <- c
 966	<-c
 967	row := stmtGetTracks.QueryRow(xid)
 968	var rawtracks string
 969	err := row.Scan(&rawtracks)
 970	if err != nil {
 971		if err != sql.ErrNoRows {
 972			elog.Printf("error scanning tracks: %s", err)
 973		}
 974		return nil
 975	}
 976	var rcpts []string
 977	for _, f := range strings.Split(rawtracks, " ") {
 978		idx := strings.LastIndexByte(f, '#')
 979		if idx != -1 {
 980			f = f[:idx]
 981		}
 982		if !strings.HasPrefix(f, "https://") {
 983			f = fmt.Sprintf("%%https://%s/inbox", f)
 984		}
 985		rcpts = append(rcpts, f)
 986	}
 987	return rcpts
 988}
 989
 990func savetracks(tracks map[string][]string) {
 991	db := opendatabase()
 992	tx, err := db.Begin()
 993	if err != nil {
 994		elog.Printf("savetracks begin error: %s", err)
 995		return
 996	}
 997	defer func() {
 998		err := tx.Commit()
 999		if err != nil {
1000			elog.Printf("savetracks commit error: %s", err)
1001		}
1002
1003	}()
1004	stmtGetTracks, err := tx.Prepare("select fetches from tracks where xid = ?")
1005	if err != nil {
1006		elog.Printf("savetracks error: %s", err)
1007		return
1008	}
1009	stmtNewTracks, err := tx.Prepare("insert into tracks (xid, fetches) values (?, ?)")
1010	if err != nil {
1011		elog.Printf("savetracks error: %s", err)
1012		return
1013	}
1014	stmtUpdateTracks, err := tx.Prepare("update tracks set fetches = ? where xid = ?")
1015	if err != nil {
1016		elog.Printf("savetracks error: %s", err)
1017		return
1018	}
1019	count := 0
1020	for xid, f := range tracks {
1021		count += len(f)
1022		var prev string
1023		row := stmtGetTracks.QueryRow(xid)
1024		err := row.Scan(&prev)
1025		if err == sql.ErrNoRows {
1026			f = oneofakind(f)
1027			stmtNewTracks.Exec(xid, strings.Join(f, " "))
1028		} else if err == nil {
1029			all := append(strings.Split(prev, " "), f...)
1030			all = oneofakind(all)
1031			stmtUpdateTracks.Exec(strings.Join(all, " "))
1032		} else {
1033			elog.Printf("savetracks error: %s", err)
1034		}
1035	}
1036	dlog.Printf("saved %d new fetches", count)
1037}
1038
1039var trackchan = make(chan Track)
1040var dumptracks = make(chan chan bool)
1041
1042func tracker() {
1043	timeout := 4 * time.Minute
1044	sleeper := time.NewTimer(timeout)
1045	tracks := make(map[string][]string)
1046	workinprogress++
1047	for {
1048		select {
1049		case track := <-trackchan:
1050			tracks[track.xid] = append(tracks[track.xid], track.who)
1051		case <-sleeper.C:
1052			if len(tracks) > 0 {
1053				go savetracks(tracks)
1054				tracks = make(map[string][]string)
1055			}
1056			sleeper.Reset(timeout)
1057		case c := <-dumptracks:
1058			if len(tracks) > 0 {
1059				savetracks(tracks)
1060			}
1061			c <- true
1062		case <-endoftheworld:
1063			if len(tracks) > 0 {
1064				savetracks(tracks)
1065			}
1066			readyalready <- true
1067			return
1068		}
1069	}
1070}
1071
1072var re_keyholder = regexp.MustCompile(`keyId="([^"]+)"`)
1073
1074func trackback(xid string, r *http.Request) {
1075	agent := r.UserAgent()
1076	who := originate(agent)
1077	sig := r.Header.Get("Signature")
1078	if sig != "" {
1079		m := re_keyholder.FindStringSubmatch(sig)
1080		if len(m) == 2 {
1081			who = m[1]
1082		}
1083	}
1084	if who != "" {
1085		trackchan <- Track{xid: xid, who: who}
1086	}
1087}
1088
1089func sameperson(h1, h2 *Honk) bool {
1090	n1, n2 := h1.Honker, h2.Honker
1091	if h1.Oonker != "" {
1092		n1 = h1.Oonker
1093	}
1094	if h2.Oonker != "" {
1095		n2 = h2.Oonker
1096	}
1097	return n1 == n2
1098}
1099
1100func threadsort(honks []*Honk) []*Honk {
1101	sort.Slice(honks, func(i, j int) bool {
1102		return honks[i].Date.Before(honks[j].Date)
1103	})
1104	honkx := make(map[string]*Honk)
1105	kids := make(map[string][]*Honk)
1106	for _, h := range honks {
1107		honkx[h.XID] = h
1108		rid := h.RID
1109		kids[rid] = append(kids[rid], h)
1110	}
1111	done := make(map[*Honk]bool)
1112	var thread []*Honk
1113	var nextlevel func(p *Honk)
1114	level := 0
1115	nextlevel = func(p *Honk) {
1116		levelup := level < 4
1117		if pp := honkx[p.RID]; p.RID == "" || (pp != nil && sameperson(p, pp)) {
1118			levelup = false
1119		}
1120		if level > 0 && len(kids[p.RID]) == 1 {
1121			if pp := honkx[p.RID]; pp != nil && len(kids[pp.RID]) == 1 {
1122				levelup = false
1123			}
1124		}
1125		if levelup {
1126			level++
1127		}
1128		p.Style += fmt.Sprintf(" level%d", level)
1129		childs := kids[p.XID]
1130		if false {
1131			sort.SliceStable(childs, func(i, j int) bool {
1132				return sameperson(childs[i], p) && !sameperson(childs[j], p)
1133			})
1134		}
1135		if true {
1136			sort.SliceStable(childs, func(i, j int) bool {
1137				return !sameperson(childs[i], p) && sameperson(childs[j], p)
1138			})
1139		}
1140		for _, h := range childs {
1141			if !done[h] {
1142				done[h] = true
1143				thread = append(thread, h)
1144				nextlevel(h)
1145			}
1146		}
1147		if levelup {
1148			level--
1149		}
1150	}
1151	for _, h := range honks {
1152		if !done[h] && h.RID == "" {
1153			done[h] = true
1154			thread = append(thread, h)
1155			nextlevel(h)
1156		}
1157	}
1158	for _, h := range honks {
1159		if !done[h] {
1160			done[h] = true
1161			thread = append(thread, h)
1162			nextlevel(h)
1163		}
1164	}
1165	return thread
1166}
1167
1168func honkology(honk *Honk) template.HTML {
1169	var user *WhatAbout
1170	ok := somenumberedusers.Get(honk.UserID, &user)
1171	if !ok {
1172		return ""
1173	}
1174	title := fmt.Sprintf("%s: %s", user.Display, honk.Precis)
1175	imgurl := avatarURL(user)
1176	for _, d := range honk.Donks {
1177		if d.Local && strings.HasPrefix(d.Media, "image") {
1178			imgurl = d.URL
1179			break
1180		}
1181	}
1182	short := honk.Noise
1183	if len(short) > 160 {
1184		short = short[0:160] + "..."
1185	}
1186	return templates.Sprintf(
1187		`<meta property="og:title" content="%s" />
1188<meta property="og:type" content="article" />
1189<meta property="article:author" content="%s" />
1190<meta property="og:url" content="%s" />
1191<meta property="og:image" content="%s" />
1192<meta property="og:description" content="%s" />`,
1193		title, user.URL, honk.XID, imgurl, short)
1194}
1195
1196func showonehonk(w http.ResponseWriter, r *http.Request) {
1197	name := mux.Vars(r)["name"]
1198	user, err := butwhatabout(name)
1199	if err != nil {
1200		http.NotFound(w, r)
1201		return
1202	}
1203	if stealthmode(user.ID, r) {
1204		http.NotFound(w, r)
1205		return
1206	}
1207	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
1208
1209	if friendorfoe(r.Header.Get("Accept")) {
1210		j, ok := gimmejonk(xid)
1211		if ok {
1212			trackback(xid, r)
1213			w.Header().Set("Content-Type", theonetruename)
1214			w.Write(j)
1215		} else {
1216			http.NotFound(w, r)
1217		}
1218		return
1219	}
1220	honk := getxonk(user.ID, xid)
1221	if honk == nil {
1222		http.NotFound(w, r)
1223		return
1224	}
1225	u := login.GetUserInfo(r)
1226	if u != nil && u.UserID != user.ID {
1227		u = nil
1228	}
1229	if !honk.Public {
1230		if u == nil {
1231			http.NotFound(w, r)
1232			return
1233
1234		}
1235		honks := []*Honk{honk}
1236		donksforhonks(honks)
1237		templinfo := getInfo(r)
1238		templinfo["ServerMessage"] = "one honk maybe more"
1239		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1240		honkpage(w, u, honks, templinfo)
1241		return
1242	}
1243
1244	templinfo := getInfo(r)
1245	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1246	//reversehonks(rawhonks)
1247	rawhonks = threadsort(rawhonks)
1248	var honks []*Honk
1249	for i, h := range rawhonks {
1250		if h.XID == xid {
1251			templinfo["Honkology"] = honkology(h)
1252			if i > 0 {
1253				h.Style += " glow"
1254			}
1255		}
1256		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
1257			honks = append(honks, h)
1258		}
1259	}
1260
1261	templinfo["ServerMessage"] = "one honk maybe more"
1262	if u != nil {
1263		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1264	}
1265	templinfo["APAltLink"] = templates.Sprintf("<link href='%s' rel='alternate' type='application/activity+json'>", xid)
1266	honkpage(w, u, honks, templinfo)
1267}
1268
1269func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
1270	var emunames []string
1271	dir, err := os.Open(dataDir + "/emus")
1272	if err == nil {
1273		emunames, _ = dir.Readdirnames(0)
1274		dir.Close()
1275	}
1276	for i, e := range emunames {
1277		if len(e) > 4 {
1278			emunames[i] = e[:len(e)-4]
1279		}
1280	}
1281	templinfo["Emus"] = emunames
1282	var userid int64 = -1
1283	if u != nil {
1284		userid = u.UserID
1285		templinfo["User"], _ = butwhatabout(u.Username)
1286	}
1287	reverbolate(userid, honks)
1288	templinfo["Honks"] = honks
1289	templinfo["MapLink"] = getmaplink(u)
1290	if templinfo["TopHID"] == nil {
1291		if len(honks) > 0 {
1292			templinfo["TopHID"] = honks[0].ID
1293		} else {
1294			templinfo["TopHID"] = 0
1295		}
1296	}
1297	if u == nil && !develMode {
1298		w.Header().Set("Cache-Control", "max-age=60")
1299	}
1300	err = readviews.Execute(w, "honkpage.html", templinfo)
1301	if err != nil {
1302		elog.Print(err)
1303	}
1304}
1305
1306func saveuser(w http.ResponseWriter, r *http.Request) {
1307	whatabout := r.FormValue("whatabout")
1308	whatabout = strings.Replace(whatabout, "\r", "", -1)
1309	u := login.GetUserInfo(r)
1310	user, _ := butwhatabout(u.Username)
1311	db := opendatabase()
1312
1313	options := user.Options
1314	if r.FormValue("skinny") == "skinny" {
1315		options.SkinnyCSS = true
1316	} else {
1317		options.SkinnyCSS = false
1318	}
1319	if r.FormValue("omitimages") == "omitimages" {
1320		options.OmitImages = true
1321	} else {
1322		options.OmitImages = false
1323	}
1324	if r.FormValue("mentionall") == "mentionall" {
1325		options.MentionAll = true
1326	} else {
1327		options.MentionAll = false
1328	}
1329	if r.FormValue("inlineqts") == "inlineqts" {
1330		options.InlineQuotes = true
1331	} else {
1332		options.InlineQuotes = false
1333	}
1334	if r.FormValue("maps") == "apple" {
1335		options.MapLink = "apple"
1336	} else {
1337		options.MapLink = ""
1338	}
1339
1340	sendupdate := false
1341	if r.FormValue("displayname") != "" {
1342		options.CustomDisplay = r.FormValue("displayname")
1343		_, err := db.Exec("update users set displayname = ? where username = ?", options.CustomDisplay, u.Username)
1344		if err != nil {
1345			elog.Printf("error setting displayname: %s", err)
1346		}
1347		sendupdate = true
1348	} else {
1349		options.CustomDisplay = ""
1350	}
1351
1352	options.Reaction = r.FormValue("reaction")
1353
1354	ava := re_avatar.FindString(whatabout)
1355	if ava != "" {
1356		whatabout = re_avatar.ReplaceAllString(whatabout, "")
1357		ava = ava[7:]
1358		if ava[0] == ' ' {
1359			ava = ava[1:]
1360		}
1361		ava = fmt.Sprintf("https://%s/meme/%s", serverName, ava)
1362	}
1363	if ava != options.Avatar {
1364		options.Avatar = ava
1365		sendupdate = true
1366	}
1367	ban := re_banner.FindString(whatabout)
1368	if ban != "" {
1369		whatabout = re_banner.ReplaceAllString(whatabout, "")
1370		ban = ban[7:]
1371		if ban[0] == ' ' {
1372			ban = ban[1:]
1373		}
1374		ban = fmt.Sprintf("https://%s/meme/%s", serverName, ban)
1375	}
1376	if ban != options.Banner {
1377		options.Banner = ban
1378		sendupdate = true
1379	}
1380	whatabout = strings.TrimSpace(whatabout)
1381	if whatabout != user.About {
1382		sendupdate = true
1383	}
1384	j, err := jsonify(options)
1385	if err == nil {
1386		_, err = db.Exec("update users set about = ?, options = ? where username = ?", whatabout, j, u.Username)
1387	}
1388	if err != nil {
1389		elog.Printf("error bouting what: %s", err)
1390	}
1391	somenamedusers.Clear(u.Username)
1392	somenumberedusers.Clear(u.UserID)
1393	oldjonkers.Clear(u.Username)
1394
1395	if sendupdate {
1396		updateMe(u.Username)
1397	}
1398
1399	http.Redirect(w, r, "/account", http.StatusSeeOther)
1400}
1401
1402func bonkit(xid string, user *WhatAbout) {
1403	dlog.Printf("bonking %s", xid)
1404
1405	xonk := getxonk(user.ID, xid)
1406	if xonk == nil {
1407		return
1408	}
1409	if !xonk.Public {
1410		return
1411	}
1412	if xonk.IsBonked() {
1413		return
1414	}
1415	donksforhonks([]*Honk{xonk})
1416
1417	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
1418	if err != nil {
1419		elog.Printf("error acking bonk: %s", err)
1420	}
1421
1422	oonker := xonk.Oonker
1423	if oonker == "" {
1424		oonker = xonk.Honker
1425	}
1426	dt := time.Now().UTC()
1427	bonk := &Honk{
1428		UserID:   user.ID,
1429		Username: user.Name,
1430		What:     "bonk",
1431		Honker:   user.URL,
1432		Oonker:   oonker,
1433		XID:      xonk.XID,
1434		RID:      xonk.RID,
1435		Noise:    xonk.Noise,
1436		Precis:   xonk.Precis,
1437		URL:      xonk.URL,
1438		Date:     dt,
1439		Donks:    xonk.Donks,
1440		Whofore:  2,
1441		Convoy:   xonk.Convoy,
1442		Audience: []string{thewholeworld, oonker},
1443		Public:   true,
1444		Format:   xonk.Format,
1445		Place:    xonk.Place,
1446		Onts:     xonk.Onts,
1447		Time:     xonk.Time,
1448	}
1449
1450	err = savehonk(bonk)
1451	if err != nil {
1452		elog.Printf("uh oh")
1453		return
1454	}
1455
1456	go honkworldwide(user, bonk)
1457}
1458
1459func submitbonk(w http.ResponseWriter, r *http.Request) {
1460	xid := r.FormValue("xid")
1461	userinfo := login.GetUserInfo(r)
1462	user, _ := butwhatabout(userinfo.Username)
1463
1464	bonkit(xid, user)
1465
1466	if r.FormValue("js") != "1" {
1467		templinfo := getInfo(r)
1468		templinfo["ServerMessage"] = "Bonked!"
1469		err := readviews.Execute(w, "msg.html", templinfo)
1470		if err != nil {
1471			elog.Print(err)
1472		}
1473	}
1474}
1475
1476func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string, aux string) {
1477	zonk := &Honk{
1478		What:     what,
1479		XID:      xonk.XID,
1480		Date:     time.Now().UTC(),
1481		Audience: oneofakind(xonk.Audience),
1482		Noise:    aux,
1483	}
1484	zonk.Public = loudandproud(zonk.Audience)
1485
1486	dlog.Printf("announcing %sed honk: %s", what, xonk.XID)
1487	go honkworldwide(user, zonk)
1488}
1489
1490func zonkit(w http.ResponseWriter, r *http.Request) {
1491	wherefore := r.FormValue("wherefore")
1492	what := r.FormValue("what")
1493	userinfo := login.GetUserInfo(r)
1494	user, _ := butwhatabout(userinfo.Username)
1495
1496	if wherefore == "save" {
1497		xonk := getxonk(userinfo.UserID, what)
1498		if xonk != nil {
1499			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
1500			if err != nil {
1501				elog.Printf("error saving: %s", err)
1502			}
1503		}
1504		return
1505	}
1506
1507	if wherefore == "unsave" {
1508		xonk := getxonk(userinfo.UserID, what)
1509		if xonk != nil {
1510			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
1511			if err != nil {
1512				elog.Printf("error unsaving: %s", err)
1513			}
1514		}
1515		return
1516	}
1517
1518	if wherefore == "react" {
1519		reaction := user.Options.Reaction
1520		if r2 := r.FormValue("reaction"); r2 != "" {
1521			reaction = r2
1522		}
1523		if reaction == "none" {
1524			return
1525		}
1526		xonk := getxonk(userinfo.UserID, what)
1527		if xonk != nil {
1528			_, err := stmtUpdateFlags.Exec(flagIsReacted, xonk.ID)
1529			if err != nil {
1530				elog.Printf("error saving: %s", err)
1531			}
1532			sendzonkofsorts(xonk, user, "react", reaction)
1533		}
1534		return
1535	}
1536
1537	// my hammer is too big, oh well
1538	defer oldjonks.Flush()
1539
1540	if wherefore == "ack" {
1541		xonk := getxonk(userinfo.UserID, what)
1542		if xonk != nil && !xonk.IsAcked() {
1543			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
1544			if err != nil {
1545				elog.Printf("error acking: %s", err)
1546			}
1547			sendzonkofsorts(xonk, user, "ack", "")
1548		}
1549		return
1550	}
1551
1552	if wherefore == "deack" {
1553		xonk := getxonk(userinfo.UserID, what)
1554		if xonk != nil && xonk.IsAcked() {
1555			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
1556			if err != nil {
1557				elog.Printf("error deacking: %s", err)
1558			}
1559			sendzonkofsorts(xonk, user, "deack", "")
1560		}
1561		return
1562	}
1563
1564	if wherefore == "bonk" {
1565		user, _ := butwhatabout(userinfo.Username)
1566		bonkit(what, user)
1567		return
1568	}
1569
1570	if wherefore == "unbonk" {
1571		xonk := getbonk(userinfo.UserID, what)
1572		if xonk != nil {
1573			deletehonk(xonk.ID)
1574			xonk = getxonk(userinfo.UserID, what)
1575			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
1576			if err != nil {
1577				elog.Printf("error unbonking: %s", err)
1578			}
1579			sendzonkofsorts(xonk, user, "unbonk", "")
1580		}
1581		return
1582	}
1583
1584	if wherefore == "untag" {
1585		xonk := getxonk(userinfo.UserID, what)
1586		if xonk != nil {
1587			_, err := stmtUpdateFlags.Exec(flagIsUntagged, xonk.ID)
1588			if err != nil {
1589				elog.Printf("error untagging: %s", err)
1590			}
1591		}
1592		var badparents map[string]bool
1593		untagged.GetAndLock(userinfo.UserID, &badparents)
1594		badparents[what] = true
1595		untagged.Unlock()
1596		return
1597	}
1598
1599	ilog.Printf("zonking %s %s", wherefore, what)
1600	if wherefore == "zonk" {
1601		xonk := getxonk(userinfo.UserID, what)
1602		if xonk != nil {
1603			deletehonk(xonk.ID)
1604			if xonk.Whofore == 2 || xonk.Whofore == 3 {
1605				sendzonkofsorts(xonk, user, "zonk", "")
1606			}
1607		}
1608	}
1609	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
1610	if err != nil {
1611		elog.Printf("error saving zonker: %s", err)
1612		return
1613	}
1614}
1615
1616func edithonkpage(w http.ResponseWriter, r *http.Request) {
1617	u := login.GetUserInfo(r)
1618	user, _ := butwhatabout(u.Username)
1619	xid := r.FormValue("xid")
1620	honk := getxonk(u.UserID, xid)
1621	if !canedithonk(user, honk) {
1622		http.Error(w, "no editing that please", http.StatusInternalServerError)
1623		return
1624	}
1625
1626	noise := honk.Noise
1627
1628	honks := []*Honk{honk}
1629	donksforhonks(honks)
1630	reverbolate(u.UserID, honks)
1631	templinfo := getInfo(r)
1632	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1633	templinfo["Honks"] = honks
1634	templinfo["MapLink"] = getmaplink(u)
1635	templinfo["Noise"] = noise
1636	templinfo["SavedPlace"] = honk.Place
1637	if tm := honk.Time; tm != nil {
1638		templinfo["ShowTime"] = " "
1639		templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 15:04")
1640		if tm.Duration != 0 {
1641			templinfo["Duration"] = tm.Duration
1642		}
1643	}
1644	templinfo["ServerMessage"] = "honk edit"
1645	templinfo["IsPreview"] = true
1646	templinfo["UpdateXID"] = honk.XID
1647	if len(honk.Donks) > 0 {
1648		var savedfiles []string
1649		for _, d := range honk.Donks {
1650			savedfiles = append(savedfiles, fmt.Sprintf("%s:%d", d.XID, d.FileID))
1651		}
1652		templinfo["SavedFile"] = strings.Join(savedfiles, ",")
1653	}
1654	err := readviews.Execute(w, "honkpage.html", templinfo)
1655	if err != nil {
1656		elog.Print(err)
1657	}
1658}
1659
1660func newhonkpage(w http.ResponseWriter, r *http.Request) {
1661	u := login.GetUserInfo(r)
1662	rid := r.FormValue("rid")
1663	noise := ""
1664
1665	xonk := getxonk(u.UserID, rid)
1666	if xonk != nil {
1667		_, replto := handles(xonk.Honker)
1668		if replto != "" {
1669			noise = "@" + replto + " "
1670		}
1671	}
1672
1673	templinfo := getInfo(r)
1674	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1675	templinfo["InReplyTo"] = rid
1676	templinfo["Noise"] = noise
1677	templinfo["ServerMessage"] = "compose honk"
1678	templinfo["IsPreview"] = true
1679	err := readviews.Execute(w, "honkpage.html", templinfo)
1680	if err != nil {
1681		elog.Print(err)
1682	}
1683}
1684
1685func canedithonk(user *WhatAbout, honk *Honk) bool {
1686	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1687		return false
1688	}
1689	return true
1690}
1691
1692func submitdonk(w http.ResponseWriter, r *http.Request) ([]*Donk, error) {
1693	if !strings.HasPrefix(strings.ToLower(r.Header.Get("Content-Type")), "multipart/form-data") {
1694		return nil, nil
1695	}
1696	var donks []*Donk
1697	for i, hdr := range r.MultipartForm.File["donk"] {
1698		if i > 16 {
1699			break
1700		}
1701		donk, err := formtodonk(w, r, hdr)
1702		if err != nil {
1703			return nil, err
1704		}
1705		donks = append(donks, donk)
1706	}
1707	return donks, nil
1708}
1709
1710func formtodonk(w http.ResponseWriter, r *http.Request, filehdr *multipart.FileHeader) (*Donk, error) {
1711	file, err := filehdr.Open()
1712	if err != nil {
1713		if err == http.ErrMissingFile {
1714			return nil, nil
1715		}
1716		elog.Printf("error reading donk: %s", err)
1717		http.Error(w, "error reading donk", http.StatusUnsupportedMediaType)
1718		return nil, err
1719	}
1720	var buf bytes.Buffer
1721	io.Copy(&buf, file)
1722	file.Close()
1723	data := buf.Bytes()
1724	var media, name string
1725	img, err := bigshrink(data)
1726	if err == nil {
1727		data = img.Data
1728		format := img.Format
1729		media = "image/" + format
1730		if format == "jpeg" {
1731			format = "jpg"
1732		}
1733		if format == "svg+xml" {
1734			format = "svg"
1735		}
1736		name = xfiltrate() + "." + format
1737	} else {
1738		ct := http.DetectContentType(data)
1739		switch ct {
1740		case "application/pdf":
1741			maxsize := 10000000
1742			if len(data) > maxsize {
1743				ilog.Printf("bad image: %s too much pdf: %d", err, len(data))
1744				http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1745				return nil, err
1746			}
1747			media = ct
1748			name = filehdr.Filename
1749			if name == "" {
1750				name = xfiltrate() + ".pdf"
1751			}
1752		default:
1753			maxsize := 100000
1754			if len(data) > maxsize {
1755				ilog.Printf("bad image: %s too much text: %d", err, len(data))
1756				http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1757				return nil, err
1758			}
1759			for i := 0; i < len(data); i++ {
1760				if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1761					ilog.Printf("bad image: %s not text: %d", err, data[i])
1762					http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1763					return nil, err
1764				}
1765			}
1766			media = "text/plain"
1767			name = filehdr.Filename
1768			if name == "" {
1769				name = xfiltrate() + ".txt"
1770			}
1771		}
1772	}
1773	desc := strings.TrimSpace(r.FormValue("donkdesc"))
1774	if desc == "" {
1775		desc = name
1776	}
1777	fileid, xid, err := savefileandxid(name, desc, "", media, true, data)
1778	if err != nil {
1779		elog.Printf("unable to save image: %s", err)
1780		http.Error(w, "failed to save attachment", http.StatusUnsupportedMediaType)
1781		return nil, err
1782	}
1783	d := &Donk{
1784		FileID: fileid,
1785		XID:    xid,
1786		Desc:   desc,
1787		Local:  true,
1788	}
1789	return d, nil
1790}
1791
1792func websubmithonk(w http.ResponseWriter, r *http.Request) {
1793	h := submithonk(w, r)
1794	if h == nil {
1795		return
1796	}
1797	http.Redirect(w, r, h.XID[len(serverName)+8:], http.StatusSeeOther)
1798}
1799
1800// what a hot mess this function is
1801func submithonk(w http.ResponseWriter, r *http.Request) *Honk {
1802	rid := r.FormValue("rid")
1803	noise := r.FormValue("noise")
1804	format := r.FormValue("format")
1805	if format == "" {
1806		format = "markdown"
1807	}
1808	if !(format == "markdown" || format == "html") {
1809		http.Error(w, "unknown format", 500)
1810		return nil
1811	}
1812
1813	userinfo := login.GetUserInfo(r)
1814	user, _ := butwhatabout(userinfo.Username)
1815
1816	dt := time.Now().UTC()
1817	updatexid := r.FormValue("updatexid")
1818	var honk *Honk
1819	if updatexid != "" {
1820		honk = getxonk(userinfo.UserID, updatexid)
1821		if !canedithonk(user, honk) {
1822			http.Error(w, "no editing that please", http.StatusInternalServerError)
1823			return nil
1824		}
1825		honk.Date = dt
1826		honk.What = "update"
1827		honk.Format = format
1828	} else {
1829		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1830		what := "honk"
1831		honk = &Honk{
1832			UserID:   userinfo.UserID,
1833			Username: userinfo.Username,
1834			What:     what,
1835			Honker:   user.URL,
1836			XID:      xid,
1837			Date:     dt,
1838			Format:   format,
1839		}
1840	}
1841
1842	var convoy string
1843	noise = strings.Replace(noise, "\r", "", -1)
1844	if updatexid == "" && rid == "" {
1845		noise = re_convoy.ReplaceAllStringFunc(noise, func(m string) string {
1846			convoy = m[7:]
1847			convoy = strings.TrimSpace(convoy)
1848			if !re_convalidate.MatchString(convoy) {
1849				convoy = ""
1850			}
1851			return ""
1852		})
1853	}
1854	noise = quickrename(noise, userinfo.UserID)
1855	noise = hooterize(noise)
1856	honk.Noise = noise
1857	precipitate(honk)
1858	noise = honk.Noise
1859	recategorize(honk)
1860	translate(honk)
1861
1862	if rid != "" {
1863		xonk := getxonk(userinfo.UserID, rid)
1864		if xonk == nil {
1865			http.Error(w, "replyto disappeared", http.StatusNotFound)
1866			return nil
1867		}
1868		if xonk.Public {
1869			honk.Audience = append(honk.Audience, xonk.Audience...)
1870		}
1871		convoy = xonk.Convoy
1872		for i, a := range honk.Audience {
1873			if a == thewholeworld {
1874				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1875				break
1876			}
1877		}
1878		honk.RID = rid
1879		if xonk.Precis != "" && honk.Precis == "" {
1880			honk.Precis = xonk.Precis
1881			if !re_dangerous.MatchString(honk.Precis) {
1882				honk.Precis = "re: " + honk.Precis
1883			}
1884		}
1885	} else if updatexid == "" {
1886		honk.Audience = []string{thewholeworld}
1887	}
1888	if honk.Noise != "" && honk.Noise[0] == '@' {
1889		honk.Audience = append(grapevine(honk.Mentions), honk.Audience...)
1890	} else {
1891		honk.Audience = append(honk.Audience, grapevine(honk.Mentions)...)
1892	}
1893
1894	if convoy == "" {
1895		convoy = fmt.Sprintf("data:,%s-", masqName) + xfiltrate()
1896	}
1897	butnottooloud(honk.Audience)
1898	honk.Audience = oneofakind(honk.Audience)
1899	if len(honk.Audience) == 0 {
1900		ilog.Printf("honk to nowhere")
1901		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1902		return nil
1903	}
1904	honk.Public = loudandproud(honk.Audience)
1905	honk.Convoy = convoy
1906	donkxid := strings.Join(r.Form["donkxid"], ",")
1907	if donkxid == "" {
1908		donks, err := submitdonk(w, r)
1909		if err != nil && err != http.ErrMissingFile {
1910			return nil
1911		}
1912		if len(donks) > 0 {
1913			honk.Donks = append(honk.Donks, donks...)
1914			var xids []string
1915			for _, d := range honk.Donks {
1916				xids = append(xids, fmt.Sprintf("%s:%d", d.XID, d.FileID))
1917			}
1918			donkxid = strings.Join(xids, ",")
1919		}
1920	} else {
1921		xids := strings.Split(donkxid, ",")
1922		for i, xid := range xids {
1923			if i > 16 {
1924				break
1925			}
1926			p := strings.Split(xid, ":")
1927			xid = p[0]
1928			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1929			var donk *Donk
1930			if len(p) > 1 {
1931				fileid, _ := strconv.ParseInt(p[1], 10, 0)
1932				donk = finddonkid(fileid, url)
1933			} else {
1934				donk = finddonk(url)
1935			}
1936			if donk != nil {
1937				honk.Donks = append(honk.Donks, donk)
1938			} else {
1939				ilog.Printf("can't find file: %s", xid)
1940			}
1941		}
1942	}
1943	memetize(honk)
1944	imaginate(honk)
1945
1946	placename := strings.TrimSpace(r.FormValue("placename"))
1947	placelat := strings.TrimSpace(r.FormValue("placelat"))
1948	placelong := strings.TrimSpace(r.FormValue("placelong"))
1949	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1950	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1951		p := new(Place)
1952		p.Name = placename
1953		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1954		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1955		p.Url = placeurl
1956		honk.Place = p
1957	}
1958	timestart := strings.TrimSpace(r.FormValue("timestart"))
1959	if timestart != "" {
1960		t := new(Time)
1961		now := time.Now().Local()
1962		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1963			start, err := time.ParseInLocation(layout, timestart, now.Location())
1964			if err == nil {
1965				if start.Year() == 0 {
1966					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1967				}
1968				t.StartTime = start
1969				break
1970			}
1971		}
1972		timeend := r.FormValue("timeend")
1973		dur := parseDuration(timeend)
1974		if dur != 0 {
1975			t.Duration = Duration(dur)
1976		}
1977		if !t.StartTime.IsZero() {
1978			honk.What = "event"
1979			honk.Time = t
1980		}
1981	}
1982
1983	if honk.Public {
1984		honk.Whofore = 2
1985	} else {
1986		honk.Whofore = 3
1987	}
1988
1989	// back to markdown
1990	honk.Noise = noise
1991
1992	if r.FormValue("preview") == "preview" {
1993		honks := []*Honk{honk}
1994		reverbolate(userinfo.UserID, honks)
1995		templinfo := getInfo(r)
1996		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1997		templinfo["Honks"] = honks
1998		templinfo["MapLink"] = getmaplink(userinfo)
1999		templinfo["InReplyTo"] = r.FormValue("rid")
2000		templinfo["Noise"] = r.FormValue("noise")
2001		templinfo["SavedFile"] = donkxid
2002		if tm := honk.Time; tm != nil {
2003			templinfo["ShowTime"] = " "
2004			templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 15:04")
2005			if tm.Duration != 0 {
2006				templinfo["Duration"] = tm.Duration
2007			}
2008		}
2009		templinfo["IsPreview"] = true
2010		templinfo["UpdateXID"] = updatexid
2011		templinfo["ServerMessage"] = "honk preview"
2012		err := readviews.Execute(w, "honkpage.html", templinfo)
2013		if err != nil {
2014			elog.Print(err)
2015		}
2016		return nil
2017	}
2018
2019	if updatexid != "" {
2020		updatehonk(honk)
2021		oldjonks.Clear(honk.XID)
2022	} else {
2023		err := savehonk(honk)
2024		if err != nil {
2025			elog.Printf("uh oh")
2026			return nil
2027		}
2028	}
2029
2030	// reload for consistency
2031	honk.Donks = nil
2032	donksforhonks([]*Honk{honk})
2033
2034	go honkworldwide(user, honk)
2035
2036	return honk
2037}
2038
2039func showhonkers(w http.ResponseWriter, r *http.Request) {
2040	userinfo := login.GetUserInfo(r)
2041	templinfo := getInfo(r)
2042	templinfo["Honkers"] = gethonkers(userinfo.UserID)
2043	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
2044	err := readviews.Execute(w, "honkers.html", templinfo)
2045	if err != nil {
2046		elog.Print(err)
2047	}
2048}
2049
2050func showchatter(w http.ResponseWriter, r *http.Request) {
2051	u := login.GetUserInfo(r)
2052	chatnewnone(u.UserID)
2053	chatter := loadchatter(u.UserID)
2054	for _, chat := range chatter {
2055		for _, ch := range chat.Chonks {
2056			filterchonk(ch)
2057		}
2058	}
2059
2060	templinfo := getInfo(r)
2061	templinfo["Chatter"] = chatter
2062	templinfo["ChonkCSRF"] = login.GetCSRF("sendchonk", r)
2063	err := readviews.Execute(w, "chatter.html", templinfo)
2064	if err != nil {
2065		elog.Print(err)
2066	}
2067}
2068
2069func submitchonk(w http.ResponseWriter, r *http.Request) {
2070	u := login.GetUserInfo(r)
2071	user, _ := butwhatabout(u.Username)
2072	noise := r.FormValue("noise")
2073	target := r.FormValue("target")
2074	format := "markdown"
2075	dt := time.Now().UTC()
2076	xid := fmt.Sprintf("%s/%s/%s", user.URL, "chonk", xfiltrate())
2077
2078	if !strings.HasPrefix(target, "https://") {
2079		target = fullname(target, u.UserID)
2080	}
2081	if target == "" {
2082		http.Error(w, "who is that?", http.StatusInternalServerError)
2083		return
2084	}
2085	ch := Chonk{
2086		UserID: u.UserID,
2087		XID:    xid,
2088		Who:    user.URL,
2089		Target: target,
2090		Date:   dt,
2091		Noise:  noise,
2092		Format: format,
2093	}
2094	donks, err := submitdonk(w, r)
2095	if err != nil && err != http.ErrMissingFile {
2096		return
2097	}
2098	if len(donks) > 0 {
2099		ch.Donks = append(ch.Donks, donks...)
2100	}
2101
2102	translatechonk(&ch)
2103	savechonk(&ch)
2104	// reload for consistency
2105	ch.Donks = nil
2106	donksforchonks([]*Chonk{&ch})
2107	go sendchonk(user, &ch)
2108
2109	http.Redirect(w, r, "/chatter", http.StatusSeeOther)
2110}
2111
2112var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
2113	honkers := gethonkers(userid)
2114	var combos []string
2115	for _, h := range honkers {
2116		combos = append(combos, h.Combos...)
2117	}
2118	for i, c := range combos {
2119		if c == "-" {
2120			combos[i] = ""
2121		}
2122	}
2123	combos = oneofakind(combos)
2124	sort.Strings(combos)
2125	return combos, true
2126}, Invalidator: &honkerinvalidator})
2127
2128func showcombos(w http.ResponseWriter, r *http.Request) {
2129	userinfo := login.GetUserInfo(r)
2130	var combos []string
2131	combocache.Get(userinfo.UserID, &combos)
2132	templinfo := getInfo(r)
2133	err := readviews.Execute(w, "combos.html", templinfo)
2134	if err != nil {
2135		elog.Print(err)
2136	}
2137}
2138
2139func websubmithonker(w http.ResponseWriter, r *http.Request) {
2140	h := submithonker(w, r)
2141	if h == nil {
2142		return
2143	}
2144	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
2145}
2146
2147func submithonker(w http.ResponseWriter, r *http.Request) *Honker {
2148	u := login.GetUserInfo(r)
2149	user, _ := butwhatabout(u.Username)
2150	name := strings.TrimSpace(r.FormValue("name"))
2151	url := strings.TrimSpace(r.FormValue("url"))
2152	peep := r.FormValue("peep")
2153	combos := strings.TrimSpace(r.FormValue("combos"))
2154	combos = " " + combos + " "
2155	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
2156
2157	re_namecheck := regexp.MustCompile("^[\\pL[:digit:]_.-]+$")
2158	if name != "" && !re_namecheck.MatchString(name) {
2159		http.Error(w, "please use a plainer name", http.StatusInternalServerError)
2160		return nil
2161	}
2162
2163	var meta HonkerMeta
2164	meta.Notes = strings.TrimSpace(r.FormValue("notes"))
2165	mj, _ := jsonify(&meta)
2166
2167	defer honkerinvalidator.Clear(u.UserID)
2168
2169	// mostly dummy, fill in later...
2170	h := &Honker{
2171		ID: honkerid,
2172	}
2173
2174	if honkerid > 0 {
2175		if r.FormValue("delete") == "delete" {
2176			unfollowyou(user, honkerid, false)
2177			stmtDeleteHonker.Exec(honkerid)
2178			return h
2179		}
2180		if r.FormValue("unsub") == "unsub" {
2181			unfollowyou(user, honkerid, false)
2182		}
2183		if r.FormValue("sub") == "sub" {
2184			followyou(user, honkerid, false)
2185		}
2186		_, err := stmtUpdateHonker.Exec(name, combos, mj, honkerid, u.UserID)
2187		if err != nil {
2188			elog.Printf("update honker err: %s", err)
2189			return nil
2190		}
2191		return h
2192	}
2193
2194	if url == "" {
2195		http.Error(w, "subscribing to nothing?", http.StatusInternalServerError)
2196		return nil
2197	}
2198
2199	flavor := "presub"
2200	if peep == "peep" {
2201		flavor = "peep"
2202	}
2203
2204	var err error
2205	honkerid, err = savehonker(user, url, name, flavor, combos, mj)
2206	if err != nil {
2207		http.Error(w, "had some trouble with that: "+err.Error(), http.StatusInternalServerError)
2208		return nil
2209	}
2210	if flavor == "presub" {
2211		followyou(user, honkerid, false)
2212	}
2213	h.ID = honkerid
2214	return h
2215}
2216
2217func hfcspage(w http.ResponseWriter, r *http.Request) {
2218	userinfo := login.GetUserInfo(r)
2219
2220	filters := getfilters(userinfo.UserID, filtAny)
2221
2222	templinfo := getInfo(r)
2223	templinfo["Filters"] = filters
2224	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
2225	err := readviews.Execute(w, "hfcs.html", templinfo)
2226	if err != nil {
2227		elog.Print(err)
2228	}
2229}
2230
2231func savehfcs(w http.ResponseWriter, r *http.Request) {
2232	userinfo := login.GetUserInfo(r)
2233	itsok := r.FormValue("itsok")
2234	if itsok == "iforgiveyou" {
2235		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
2236		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
2237		if err != nil {
2238			elog.Printf("error deleting filter: %s", err)
2239		}
2240		filtInvalidator.Clear(userinfo.UserID)
2241		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
2242		return
2243	}
2244
2245	filt := new(Filter)
2246	filt.Name = strings.TrimSpace(r.FormValue("name"))
2247	filt.Date = time.Now().UTC()
2248	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
2249	filt.IncludeAudience = r.FormValue("incaud") == "yes"
2250	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
2251	filt.IsReply = r.FormValue("isreply") == "yes"
2252	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
2253	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
2254	filt.Reject = r.FormValue("doreject") == "yes"
2255	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
2256	filt.Hide = r.FormValue("dohide") == "yes"
2257	filt.Collapse = r.FormValue("docollapse") == "yes"
2258	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
2259	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
2260	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
2261		filt.Expiration = time.Now().UTC().Add(dur)
2262	}
2263	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
2264
2265	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
2266		ilog.Printf("blank filter")
2267		http.Error(w, "can't save a blank filter", http.StatusInternalServerError)
2268		return
2269	}
2270
2271	j, err := jsonify(filt)
2272	if err == nil {
2273		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
2274	}
2275	if err != nil {
2276		elog.Printf("error saving filter: %s", err)
2277	}
2278
2279	filtInvalidator.Clear(userinfo.UserID)
2280	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
2281}
2282
2283func accountpage(w http.ResponseWriter, r *http.Request) {
2284	u := login.GetUserInfo(r)
2285	user, _ := butwhatabout(u.Username)
2286	templinfo := getInfo(r)
2287	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
2288	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
2289	templinfo["User"] = user
2290	about := user.About
2291	if ava := user.Options.Avatar; ava != "" {
2292		about += "\n\navatar: " + ava[strings.LastIndexByte(ava, '/')+1:]
2293	}
2294	if ban := user.Options.Banner; ban != "" {
2295		about += "\n\nbanner: " + ban[strings.LastIndexByte(ban, '/')+1:]
2296	}
2297	templinfo["WhatAbout"] = about
2298	err := readviews.Execute(w, "account.html", templinfo)
2299	if err != nil {
2300		elog.Print(err)
2301	}
2302}
2303
2304func dochpass(w http.ResponseWriter, r *http.Request) {
2305	err := login.ChangePassword(w, r)
2306	if err != nil {
2307		elog.Printf("error changing password: %s", err)
2308	}
2309	http.Redirect(w, r, "/account", http.StatusSeeOther)
2310}
2311
2312var oldfingers = cache.New(cache.Options{Filler: func(orig string) ([]byte, bool) {
2313	if strings.HasPrefix(orig, "acct:") {
2314		orig = orig[5:]
2315	}
2316	name := orig
2317	idx := strings.LastIndexByte(name, '/')
2318	if idx != -1 {
2319		name = name[idx+1:]
2320		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
2321			ilog.Printf("foreign request rejected")
2322			name = ""
2323		}
2324	} else {
2325		idx = strings.IndexByte(name, '@')
2326		if idx != -1 {
2327			name = name[:idx]
2328			if !(name+"@"+serverName == orig || name+"@"+masqName == orig) {
2329				ilog.Printf("foreign request rejected")
2330				name = ""
2331			}
2332		}
2333	}
2334	user, err := butwhatabout(name)
2335	if err != nil {
2336		return nil, false
2337	}
2338
2339	j := junk.New()
2340	pretty := fmt.Sprintf("https://%s/@%s", serverName, name)
2341	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, masqName)
2342	j["aliases"] = []string{pretty, user.URL}
2343	l := junk.New()
2344	l["rel"] = "self"
2345	l["type"] = `application/activity+json`
2346	l["href"] = user.URL
2347	j["links"] = []junk.Junk{l}
2348	l2 := junk.New()
2349	l2["rel"] = "http://webfinger.net/rel/profile-page"
2350	l2["type"] = "text/html"
2351	l2["href"] = pretty
2352	j["links"] = []junk.Junk{l, l2}
2353
2354	return j.ToBytes(), true
2355}})
2356
2357func fingerlicker(w http.ResponseWriter, r *http.Request) {
2358	orig := r.FormValue("resource")
2359
2360	dlog.Printf("finger lick: %s", orig)
2361
2362	var j []byte
2363	ok := oldfingers.Get(orig, &j)
2364	if ok {
2365		w.Header().Set("Content-Type", "application/jrd+json")
2366		w.Write(j)
2367	} else {
2368		http.NotFound(w, r)
2369	}
2370}
2371
2372func knowninformation(w http.ResponseWriter, r *http.Request) {
2373	j := junk.New()
2374	l := junk.New()
2375
2376	l["rel"] = `http://nodeinfo.diaspora.software/ns/schema/2.0`
2377	l["href"] = fmt.Sprintf("https://%s/nodeinfo/2.0", serverName)
2378	j["links"] = []junk.Junk{l}
2379
2380	w.Header().Set("Content-Type", "application/json")
2381	j.Write(w)
2382}
2383
2384func actualinformation(w http.ResponseWriter, r *http.Request) {
2385	j := junk.New()
2386
2387	soft := junk.New()
2388	soft["name"] = "honk"
2389	soft["version"] = softwareVersion
2390
2391	services := junk.New()
2392	services["inbound"] = []string{}
2393	services["outbound"] = []string{"rss2.0"}
2394
2395	users := junk.New()
2396	users["total"] = getusercount()
2397	users["activeHalfyear"] = getactiveusercount(6)
2398	users["activeMonth"] = getactiveusercount(1)
2399
2400	usage := junk.New()
2401	usage["users"] = users
2402	usage["localPosts"] = getlocalhonkcount()
2403
2404	j["version"] = "2.0"
2405	j["protocols"] = []string{"activitypub"}
2406	j["software"] = soft
2407	j["services"] = services
2408	j["openRegistrations"] = false
2409	j["usage"] = usage
2410
2411	w.Header().Set("Content-Type", "application/json")
2412	j.Write(w)
2413}
2414
2415func somedays() string {
2416	secs := 432000 + notrand.Int63n(432000)
2417	return fmt.Sprintf("%d", secs)
2418}
2419
2420func isurl(s string) bool {
2421	u, err := url.Parse(s)
2422	return err == nil && u.Scheme != "" && u.Host != ""
2423}
2424
2425func avatateautogen(r *http.Request) []byte {
2426	n := r.FormValue("a")
2427	return genAvatar(n)
2428}
2429
2430func avatate(w http.ResponseWriter, r *http.Request) {
2431	if develMode {
2432		loadAvatarColors()
2433	}
2434	var a []byte
2435	n := r.FormValue("a")
2436
2437	if isurl(n) {
2438		uinfo := login.GetUserInfo(r)
2439		if uinfo != nil {
2440			j, err := GetJunkFast(uinfo.UserID, n)
2441			if err != nil {
2442				dlog.Println("avatating: getting junk:", err)
2443				a = avatateautogen(r)
2444			}
2445			pfpurl, _ := j.GetString("icon", "url")
2446			res, err := http.Get(pfpurl)
2447			if err != nil {
2448				dlog.Println("avatating: getting pfp url:", err)
2449				a = avatateautogen(r)
2450			} else {
2451				defer res.Body.Close()
2452
2453				pfpbytes, err := io.ReadAll(res.Body)
2454				if err != nil {
2455					dlog.Println("avatating: bruh shits clapped:", err)
2456					a = avatateautogen(r)
2457				}
2458				a = pfpbytes
2459			}
2460		} else {
2461			a = avatateautogen(r)
2462		}
2463	} else {
2464		a = avatateautogen(r)
2465	}
2466
2467	if !develMode {
2468		w.Header().Set("Cache-Control", "max-age="+somedays())
2469	}
2470
2471	w.Write(a)
2472}
2473
2474func serveviewasset(w http.ResponseWriter, r *http.Request) {
2475	serveasset(w, r, viewDir)
2476}
2477func servedataasset(w http.ResponseWriter, r *http.Request) {
2478	if r.URL.Path == "/favicon.ico" {
2479		r.URL.Path = "/icon.png"
2480	}
2481	serveasset(w, r, dataDir)
2482}
2483
2484func serveasset(w http.ResponseWriter, r *http.Request, basedir string) {
2485	if !develMode {
2486		w.Header().Set("Cache-Control", "max-age=7776000")
2487	}
2488	http.ServeFile(w, r, basedir+"/views"+r.URL.Path)
2489}
2490func servehelp(w http.ResponseWriter, r *http.Request) {
2491	name := mux.Vars(r)["name"]
2492	if !develMode {
2493		w.Header().Set("Cache-Control", "max-age=3600")
2494	}
2495	http.ServeFile(w, r, viewDir+"/docs/"+name)
2496}
2497func servehtml(w http.ResponseWriter, r *http.Request) {
2498	u := login.GetUserInfo(r)
2499	templinfo := getInfo(r)
2500	templinfo["AboutMsg"] = aboutMsg
2501	templinfo["LoginMsg"] = loginMsg
2502	templinfo["HonkVersion"] = softwareVersion
2503	if r.URL.Path == "/about" {
2504		templinfo["Sensors"] = getSensors()
2505	}
2506	if u == nil && !develMode {
2507		w.Header().Set("Cache-Control", "max-age=60")
2508	}
2509	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
2510	if err != nil {
2511		elog.Print(err)
2512	}
2513}
2514func serveemu(w http.ResponseWriter, r *http.Request) {
2515	emu := mux.Vars(r)["emu"]
2516
2517	w.Header().Set("Cache-Control", "max-age="+somedays())
2518	http.ServeFile(w, r, dataDir+"/emus/"+emu)
2519}
2520func servememe(w http.ResponseWriter, r *http.Request) {
2521	meme := mux.Vars(r)["meme"]
2522
2523	w.Header().Set("Cache-Control", "max-age="+somedays())
2524	http.ServeFile(w, r, dataDir+"/memes/"+meme)
2525}
2526
2527func servefile(w http.ResponseWriter, r *http.Request) {
2528	xid := mux.Vars(r)["xid"]
2529	var media string
2530	var data []byte
2531	row := stmtGetFileData.QueryRow(xid)
2532	err := row.Scan(&media, &data)
2533	if err != nil {
2534		elog.Printf("error loading file: %s", err)
2535		http.NotFound(w, r)
2536		return
2537	}
2538	w.Header().Set("Content-Type", media)
2539	w.Header().Set("X-Content-Type-Options", "nosniff")
2540	w.Header().Set("Cache-Control", "max-age="+somedays())
2541	w.Write(data)
2542}
2543
2544func nomoroboto(w http.ResponseWriter, r *http.Request) {
2545	io.WriteString(w, "User-agent: *\n")
2546	io.WriteString(w, "Disallow: /a\n")
2547	io.WriteString(w, "Disallow: /d/\n")
2548	io.WriteString(w, "Disallow: /meme/\n")
2549	io.WriteString(w, "Disallow: /o\n")
2550	io.WriteString(w, "Disallow: /o/\n")
2551	io.WriteString(w, "Disallow: /help/\n")
2552	for _, u := range allusers() {
2553		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
2554	}
2555}
2556
2557type Hydration struct {
2558	Tophid    int64
2559	Srvmsg    template.HTML
2560	Honks     string
2561	MeCount   int64
2562	ChatCount int64
2563}
2564
2565func webhydra(w http.ResponseWriter, r *http.Request) {
2566	u := login.GetUserInfo(r)
2567	userid := u.UserID
2568	templinfo := getInfo(r)
2569	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
2570	page := r.FormValue("page")
2571
2572	wanted, _ := strconv.ParseInt(r.FormValue("tophid"), 10, 0)
2573
2574	var hydra Hydration
2575
2576	var honks []*Honk
2577	switch page {
2578	case "atme":
2579		honks = gethonksforme(userid, wanted)
2580		honks = osmosis(honks, userid, false)
2581		menewnone(userid)
2582		hydra.Srvmsg = "at me!"
2583	case "longago":
2584		honks = gethonksfromlongago(userid, wanted)
2585		honks = osmosis(honks, userid, false)
2586		hydra.Srvmsg = "from long ago"
2587	case "home":
2588		honks = gethonksforuser(userid, wanted)
2589		honks = osmosis(honks, userid, true)
2590		hydra.Srvmsg = serverMsg
2591	case "first":
2592		honks = gethonksforuserfirstclass(userid, wanted)
2593		honks = osmosis(honks, userid, true)
2594		hydra.Srvmsg = "first class only"
2595	case "saved":
2596		honks = getsavedhonks(userid, wanted)
2597		templinfo["PageName"] = "saved"
2598		hydra.Srvmsg = "saved honks"
2599	case "combo":
2600		c := r.FormValue("c")
2601		honks = gethonksbycombo(userid, c, wanted)
2602		honks = osmosis(honks, userid, false)
2603		hydra.Srvmsg = templates.Sprintf("honks by combo: %s", c)
2604	case "convoy":
2605		c := r.FormValue("c")
2606		honks = gethonksbyconvoy(userid, c, wanted)
2607		honks = osmosis(honks, userid, false)
2608		honks = threadsort(honks)
2609		reversehonks(honks)
2610		hydra.Srvmsg = templates.Sprintf("honks in convoy: %s", c)
2611	case "honker":
2612		xid := r.FormValue("xid")
2613		honks = gethonksbyxonker(userid, xid, wanted)
2614		miniform := templates.Sprintf(`<form action="/submithonker" method="POST">
2615			<input type="hidden" name="CSRF" value="%s">
2616			<input type="hidden" name="url" value="%s">
2617			<button tabindex=1 name="add honker" value="add honker">add honker</button>
2618			</form>`, login.GetCSRF("submithonker", r), xid)
2619		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>%s`, xid, xid, miniform)
2620		hydra.Srvmsg = msg
2621	case "user":
2622		uname := r.FormValue("uname")
2623		honks = gethonksbyuser(uname, u != nil && u.Username == uname, wanted)
2624		hydra.Srvmsg = templates.Sprintf("honks by user: %s", uname)
2625	default:
2626		http.NotFound(w, r)
2627	}
2628
2629	if len(honks) > 0 {
2630		hydra.Tophid = honks[0].ID
2631	} else {
2632		hydra.Tophid = wanted
2633	}
2634	reverbolate(userid, honks)
2635
2636	user, _ := butwhatabout(u.Username)
2637
2638	var buf strings.Builder
2639	templinfo["Honks"] = honks
2640	templinfo["MapLink"] = getmaplink(u)
2641	templinfo["User"], _ = butwhatabout(u.Username)
2642	err := readviews.Execute(&buf, "honkfrags.html", templinfo)
2643	if err != nil {
2644		elog.Printf("frag error: %s", err)
2645		return
2646	}
2647	hydra.Honks = buf.String()
2648	hydra.MeCount = user.Options.MeCount
2649	hydra.ChatCount = user.Options.ChatCount
2650	w.Header().Set("Content-Type", "application/json")
2651	j, _ := jsonify(&hydra)
2652	io.WriteString(w, j)
2653}
2654
2655var honkline = make(chan bool)
2656
2657func honkhonkline() {
2658	for {
2659		select {
2660		case honkline <- true:
2661		default:
2662			return
2663		}
2664	}
2665}
2666
2667func apihandler(w http.ResponseWriter, r *http.Request) {
2668	u := login.GetUserInfo(r)
2669	userid := u.UserID
2670	action := r.FormValue("action")
2671	wait, _ := strconv.ParseInt(r.FormValue("wait"), 10, 0)
2672	dlog.Printf("api request '%s' on behalf of %s", action, u.Username)
2673	switch action {
2674	case "honk":
2675		h := submithonk(w, r)
2676		if h == nil {
2677			return
2678		}
2679
2680		fmt.Fprintf(w, "%s", h.XID)
2681	case "donk":
2682		donks, err := submitdonk(w, r)
2683		if err != nil {
2684			http.Error(w, err.Error(), http.StatusBadRequest)
2685			return
2686		}
2687		if len(donks) == 0 {
2688			http.Error(w, "missing donk", http.StatusBadRequest)
2689			return
2690		}
2691		d := donks[0]
2692		donkxid := fmt.Sprintf("%s:%d", d.XID, d.FileID)
2693		w.Write([]byte(donkxid))
2694	case "zonkit":
2695		zonkit(w, r)
2696	case "gethonks":
2697		var honks []*Honk
2698		wanted, _ := strconv.ParseInt(r.FormValue("after"), 10, 0)
2699		page := r.FormValue("page")
2700		var waitchan <-chan time.Time
2701	requery:
2702		switch page {
2703		case "atme":
2704			honks = gethonksforme(userid, wanted)
2705			honks = osmosis(honks, userid, false)
2706			menewnone(userid)
2707		case "longago":
2708			honks = gethonksfromlongago(userid, wanted)
2709			honks = osmosis(honks, userid, false)
2710		case "home":
2711			honks = gethonksforuser(userid, wanted)
2712			honks = osmosis(honks, userid, true)
2713		case "myhonks":
2714			honks = gethonksbyuser(u.Username, true, wanted)
2715			honks = osmosis(honks, userid, true)
2716		default:
2717			http.Error(w, "unknown page", http.StatusNotFound)
2718			return
2719		}
2720		if len(honks) == 0 && wait > 0 {
2721			if waitchan == nil {
2722				waitchan = time.After(time.Duration(wait) * time.Second)
2723			}
2724			select {
2725			case <-honkline:
2726				goto requery
2727			case <-waitchan:
2728			}
2729		}
2730		reverbolate(userid, honks)
2731		j := junk.New()
2732		j["honks"] = honks
2733		j.Write(w)
2734	case "sendactivity":
2735		user, _ := butwhatabout(u.Username)
2736		public := r.FormValue("public") == "1"
2737		rcpts := boxuprcpts(user, r.Form["rcpt"], public)
2738		msg := []byte(r.FormValue("msg"))
2739		for rcpt := range rcpts {
2740			go deliverate(userid, rcpt, msg)
2741		}
2742	case "gethonkers":
2743		j := junk.New()
2744		j["honkers"] = gethonkers(u.UserID)
2745		j.Write(w)
2746	case "savehonker":
2747		h := submithonker(w, r)
2748		if h == nil {
2749			return
2750		}
2751		fmt.Fprintf(w, "%d", h.ID)
2752	default:
2753		http.Error(w, "unknown action", http.StatusNotFound)
2754		return
2755	}
2756}
2757
2758func fiveoh(w http.ResponseWriter, r *http.Request) {
2759	if !develMode {
2760		return
2761	}
2762	fd, err := os.OpenFile("violations.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
2763	if err != nil {
2764		elog.Printf("error opening violations! %s", err)
2765		return
2766	}
2767	defer fd.Close()
2768	io.Copy(fd, r.Body)
2769	fd.WriteString("\n")
2770}
2771
2772var endoftheworld = make(chan bool)
2773var readyalready = make(chan bool)
2774var workinprogress = 0
2775
2776func enditall() {
2777	sig := make(chan os.Signal, 1)
2778	signal.Notify(sig, os.Interrupt, syscall.SIGTERM, syscall.SIGQUIT)
2779	<-sig
2780	ilog.Printf("stopping...")
2781	for i := 0; i < workinprogress; i++ {
2782		endoftheworld <- true
2783	}
2784	ilog.Printf("waiting...")
2785	for i := 0; i < workinprogress; i++ {
2786		<-readyalready
2787	}
2788	ilog.Printf("apocalypse")
2789	os.Exit(0)
2790}
2791
2792var preservehooks []func()
2793
2794func bgmonitor() {
2795	for {
2796		when := time.Now().Add(-3 * 24 * time.Hour).UTC().Format(dbtimeformat)
2797		_, err := stmtDeleteOldXonkers.Exec("pubkey", when)
2798		if err != nil {
2799			elog.Printf("error deleting old xonkers: %s", err)
2800		}
2801		zaggies.Flush()
2802		time.Sleep(50 * time.Minute)
2803	}
2804}
2805
2806func emuinit() {
2807	var emunames []string
2808	dir, err := os.Open(dataDir + "/emus")
2809	if err == nil {
2810		emunames, _ = dir.Readdirnames(0)
2811		dir.Close()
2812	}
2813	for _, e := range emunames {
2814		if len(e) <= 4 {
2815			continue
2816		}
2817		ext := e[len(e)-4:]
2818		emu := Emu{
2819			ID:   fmt.Sprintf("/emu/%s", e),
2820			Name: e[:len(e)-4],
2821			Type: "image/" + ext[1:],
2822		}
2823		allemus = append(allemus, emu)
2824	}
2825	sort.Slice(allemus, func(i, j int) bool {
2826		return allemus[i].Name < allemus[j].Name
2827	})
2828}
2829
2830func redirectPretty(w http.ResponseWriter, r *http.Request) {
2831	last := path.Base(r.URL.Path)
2832	name := mux.Vars(r)["name"]
2833	aturl := "/@" + name
2834
2835	if last == name {
2836		last = ""
2837	}
2838	http.Redirect(w, r, path.Join(aturl, last), http.StatusMovedPermanently)
2839}
2840
2841func serve() {
2842	db := opendatabase()
2843	login.Init(login.InitArgs{Db: db, Logger: ilog, Insecure: develMode, SameSiteStrict: !develMode})
2844
2845	listener, err := openListener()
2846	if err != nil {
2847		elog.Fatal(err)
2848	}
2849	runBackendServer()
2850	go enditall()
2851	go redeliverator()
2852	go tracker()
2853	go bgmonitor()
2854	go qotd()
2855	loadLingo()
2856	emuinit()
2857
2858	readviews = templates.Load(develMode,
2859		viewDir+"/views/honkpage.html",
2860		viewDir+"/views/honkfrags.html",
2861		viewDir+"/views/honkers.html",
2862		viewDir+"/views/chatter.html",
2863		viewDir+"/views/hfcs.html",
2864		viewDir+"/views/combos.html",
2865		viewDir+"/views/honkform.html",
2866		viewDir+"/views/honk.html",
2867		viewDir+"/views/account.html",
2868		viewDir+"/views/about.html",
2869		viewDir+"/views/funzone.html",
2870		viewDir+"/views/login.html",
2871		viewDir+"/views/xzone.html",
2872		viewDir+"/views/msg.html",
2873		viewDir+"/views/header.html",
2874		viewDir+"/views/onts.html",
2875		viewDir+"/views/emus.html",
2876		viewDir+"/views/oauthlogin.html",
2877		viewDir+"/views/honkpage.js",
2878	)
2879	if !develMode {
2880		assets := []string{
2881			viewDir + "/views/style.css",
2882			dataDir + "/views/local.css",
2883			viewDir + "/views/honkpage.js",
2884			viewDir + "/views/misc.js",
2885			dataDir + "/views/local.js",
2886			viewDir + "/views/manifest.webmanifest",
2887			viewDir + "/views/sw.js",
2888		}
2889		for _, s := range assets {
2890			savedassetparams[s] = getassetparam(s)
2891		}
2892		loadAvatarColors()
2893	}
2894
2895	for _, h := range preservehooks {
2896		h()
2897	}
2898
2899	mux := mux.NewRouter()
2900	mux.Use(login.Checker)
2901
2902	mux.Handle("/api", login.TokenRequired(http.HandlerFunc(apihandler)))
2903
2904	posters := mux.Methods("POST").Subrouter()
2905	getters := mux.Methods("GET").Subrouter()
2906
2907	getters.HandleFunc("/", homepage)
2908	getters.HandleFunc("/home", homepage)
2909	getters.HandleFunc("/front", homepage)
2910	getters.HandleFunc("/events", homepage)
2911	getters.HandleFunc("/robots.txt", nomoroboto)
2912	getters.HandleFunc("/rss", showrss)
2913	getters.HandleFunc("/@{name:[\\pL[:digit:]]+}", showuser)
2914	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}", redirectPretty)
2915	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/"+honkSep+"/{xid:[\\pL[:digit:]]+}", showonehonk)
2916	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/rss", showrss)
2917	posters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/inbox", inbox)
2918	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/outbox", outbox)
2919	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/followers", emptiness)
2920	getters.HandleFunc("/"+userSep+"/{name:[\\pL[:digit:]]+}/following", emptiness)
2921	getters.HandleFunc("/a", avatate)
2922	getters.HandleFunc("/o", thelistingoftheontologies)
2923	getters.HandleFunc("/o/{name:.+}", showontology)
2924	getters.HandleFunc("/d/{xid:[\\pL[:digit:].]+}", servefile)
2925	getters.HandleFunc("/emu/{emu:[^.]*[^/]+}", serveemu)
2926	getters.HandleFunc("/meme/{meme:[^.]*[^/]+}", servememe)
2927	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
2928	getters.HandleFunc("/.well-known/nodeinfo", knowninformation)
2929	getters.HandleFunc("/nodeinfo/2.0", actualinformation)
2930
2931	getters.HandleFunc("/flag/{code:.+}", showflag)
2932
2933	getters.HandleFunc("/server", serveractor)
2934	posters.HandleFunc("/server/inbox", serverinbox)
2935	posters.HandleFunc("/inbox", serverinbox)
2936
2937	posters.HandleFunc("/csp-violation", fiveoh)
2938
2939	getters.HandleFunc("/style.css", serveviewasset)
2940	getters.HandleFunc("/sw.js", serveviewasset)
2941	getters.HandleFunc("/honkpage.js", serveviewasset)
2942	getters.HandleFunc("/misc.js", serveviewasset)
2943	getters.HandleFunc("/local.css", servedataasset)
2944	getters.HandleFunc("/local.js", servedataasset)
2945	getters.HandleFunc("/icon.png", servedataasset)
2946	getters.HandleFunc("/favicon.ico", servedataasset)
2947	getters.HandleFunc("/manifest.webmanifest", serveviewasset)
2948
2949	getters.HandleFunc("/about", servehtml)
2950	getters.HandleFunc("/login", servehtml)
2951	posters.HandleFunc("/dologin", login.LoginFunc)
2952	getters.HandleFunc("/logout", login.LogoutFunc)
2953	getters.HandleFunc("/help/{name:[\\pL[:digit:]_.-]+}", servehelp)
2954
2955	loggedin := mux.NewRoute().Subrouter()
2956	loggedin.Use(login.Required)
2957	loggedin.HandleFunc("/first", homepage)
2958	loggedin.HandleFunc("/chatter", showchatter)
2959	loggedin.Handle("/sendchonk", login.CSRFWrap("sendchonk", http.HandlerFunc(submitchonk)))
2960	loggedin.HandleFunc("/saved", homepage)
2961	loggedin.HandleFunc("/account", accountpage)
2962	loggedin.HandleFunc("/funzone", showfunzone)
2963	loggedin.HandleFunc("/chpass", dochpass)
2964	loggedin.HandleFunc("/atme", homepage)
2965	loggedin.HandleFunc("/longago", homepage)
2966	loggedin.HandleFunc("/hfcs", hfcspage)
2967	loggedin.HandleFunc("/xzone", xzone)
2968	loggedin.HandleFunc("/newhonk", newhonkpage)
2969	loggedin.HandleFunc("/edit", edithonkpage)
2970	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(websubmithonk)))
2971	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
2972	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
2973	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
2974	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
2975	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
2976	loggedin.HandleFunc("/honkers", showhonkers)
2977	loggedin.HandleFunc("/h/{name:[\\pL[:digit:]_.-]+}", showhonker)
2978	loggedin.HandleFunc("/h", showhonker)
2979	loggedin.HandleFunc("/c/{name:[\\pL[:digit:]_.-]+}", showcombo)
2980	loggedin.HandleFunc("/c", showcombos)
2981	loggedin.HandleFunc("/t", showconvoy)
2982	loggedin.HandleFunc("/q", showsearch)
2983	loggedin.HandleFunc("/hydra", webhydra)
2984	loggedin.HandleFunc("/emus", showemus)
2985	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(websubmithonker)))
2986
2987	// mastoshit
2988	mastopost := mux.Methods("POST").Subrouter()
2989	mastoget := mux.Methods("GET").Subrouter()
2990
2991	mastoget.HandleFunc("/oauth/authorize", showoauthlogin)
2992	mastopost.HandleFunc("/oauth/authorize", oauthorize)
2993	mastopost.HandleFunc("/oauth/token", oauthtoken)
2994	mastoget.HandleFunc("/api/v1/instance", instance)
2995	mastopost.HandleFunc("/api/v1/apps", apiapps)
2996	mastoget.HandleFunc("/api/v1/apps/verify_credentials", injectapp(verifycreds))
2997
2998	loggedmux := handlers.LoggingHandler(os.Stdout, mux)
2999	err = http.Serve(listener, loggedmux)
3000	if err != nil {
3001		elog.Fatal(err)
3002	}
3003}
3004
3005// Verifies that accesstoken is valid and injects the associated
3006// MastoApp in the request context
3007func injectapp(h http.HandlerFunc) http.HandlerFunc {
3008	return func(w http.ResponseWriter, r *http.Request) {
3009		authHeader := r.Header.Get("Authorization")
3010		split := strings.Split(authHeader, "Bearer")
3011		if len(split) != 2 {
3012			elog.Println("masto: bad access token format or lack thereof")
3013			w.WriteHeader(http.StatusBadRequest)
3014			return
3015		}
3016
3017		token := split[1]
3018		app := getMastoAppFromAccessToken(token)
3019		if app == nil {
3020			elog.Println("masto: invalid access token")
3021			w.WriteHeader(http.StatusUnauthorized)
3022			return
3023		}
3024
3025		ctx := context.WithValue(r.Context(), "app", app)
3026		r = r.WithContext(ctx)
3027		h(w, r)
3028	}
3029}