all repos — honk @ 9778397e34d83c1c6e60ea2306056112112fac35

my fork of honk

web.go (view raw)

   1//
   2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
   3//
   4// Permission to use, copy, modify, and distribute this software for any
   5// purpose with or without fee is hereby granted, provided that the above
   6// copyright notice and this permission notice appear in all copies.
   7//
   8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15
  16package main
  17
  18import (
  19	"bytes"
  20	"database/sql"
  21	"fmt"
  22	"html/template"
  23	"io"
  24	"log"
  25	notrand "math/rand"
  26	"net/http"
  27	"net/url"
  28	"os"
  29	"os/signal"
  30	"regexp"
  31	"sort"
  32	"strconv"
  33	"strings"
  34	"syscall"
  35	"time"
  36
  37	"github.com/gorilla/mux"
  38	"humungus.tedunangst.com/r/webs/cache"
  39	"humungus.tedunangst.com/r/webs/httpsig"
  40	"humungus.tedunangst.com/r/webs/junk"
  41	"humungus.tedunangst.com/r/webs/login"
  42	"humungus.tedunangst.com/r/webs/rss"
  43	"humungus.tedunangst.com/r/webs/templates"
  44)
  45
  46var readviews *templates.Template
  47
  48var userSep = "u"
  49var honkSep = "h"
  50
  51var debugMode = false
  52
  53func getuserstyle(u *login.UserInfo) template.CSS {
  54	if u == nil {
  55		return ""
  56	}
  57	user, _ := butwhatabout(u.Username)
  58	css := template.CSS("")
  59	if user.Options.SkinnyCSS {
  60		css += "main { max-width: 700px; }\n"
  61	}
  62	if user.Options.OmitImages {
  63		css += ".honk .noise img { display: none; }\n"
  64	}
  65	return css
  66}
  67
  68func getmaplink(u *login.UserInfo) string {
  69	if u == nil {
  70		return "osm"
  71	}
  72	user, _ := butwhatabout(u.Username)
  73	ml := user.Options.MapLink
  74	if ml == "" {
  75		ml = "osm"
  76	}
  77	return ml
  78}
  79
  80func getInfo(r *http.Request) map[string]interface{} {
  81	u := login.GetUserInfo(r)
  82	templinfo := make(map[string]interface{})
  83	templinfo["StyleParam"] = getassetparam(viewDir + "/views/style.css")
  84	templinfo["LocalStyleParam"] = getassetparam(viewDir + "/views/local.css")
  85	templinfo["JSParam"] = getassetparam(viewDir + "/views/honkpage.js")
  86	templinfo["UserStyle"] = getuserstyle(u)
  87	templinfo["ServerName"] = serverName
  88	templinfo["IconName"] = iconName
  89	templinfo["UserInfo"] = u
  90	templinfo["UserSep"] = userSep
  91	if u != nil {
  92		var combos []string
  93		combocache.Get(u.UserID, &combos)
  94		templinfo["Combos"] = combos
  95	}
  96	return templinfo
  97}
  98
  99func homepage(w http.ResponseWriter, r *http.Request) {
 100	templinfo := getInfo(r)
 101	u := login.GetUserInfo(r)
 102	var honks []*Honk
 103	var userid int64 = -1
 104
 105	templinfo["ServerMessage"] = serverMsg
 106	if u == nil || r.URL.Path == "/front" {
 107		switch r.URL.Path {
 108		case "/events":
 109			honks = geteventhonks(userid)
 110			templinfo["ServerMessage"] = "some recent and upcoming events"
 111		default:
 112			templinfo["ShowRSS"] = true
 113			honks = getpublichonks()
 114		}
 115	} else {
 116		userid = u.UserID
 117		switch r.URL.Path {
 118		case "/atme":
 119			templinfo["ServerMessage"] = "at me!"
 120			templinfo["PageName"] = "atme"
 121			honks = gethonksforme(userid, 0)
 122			honks = osmosis(honks, userid, false)
 123		case "/events":
 124			templinfo["ServerMessage"] = "some recent and upcoming events"
 125			templinfo["PageName"] = "events"
 126			honks = geteventhonks(userid)
 127			honks = osmosis(honks, userid, true)
 128		case "/first":
 129			templinfo["PageName"] = "first"
 130			honks = gethonksforuserfirstclass(userid, 0)
 131			honks = osmosis(honks, userid, true)
 132		case "/saved":
 133			templinfo["ServerMessage"] = "saved honks"
 134			templinfo["PageName"] = "saved"
 135			honks = getsavedhonks(userid, 0)
 136		default:
 137			templinfo["PageName"] = "home"
 138			honks = gethonksforuser(userid, 0)
 139			honks = osmosis(honks, userid, true)
 140		}
 141		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 142	}
 143
 144	honkpage(w, u, honks, templinfo)
 145}
 146
 147func showfunzone(w http.ResponseWriter, r *http.Request) {
 148	var emunames, memenames []string
 149	dir, err := os.Open(dataDir + "/emus")
 150	if err == nil {
 151		emunames, _ = dir.Readdirnames(0)
 152		dir.Close()
 153	}
 154	for i, e := range emunames {
 155		if len(e) > 4 {
 156			emunames[i] = e[:len(e)-4]
 157		}
 158	}
 159	dir, err = os.Open(dataDir + "/memes")
 160	if err == nil {
 161		memenames, _ = dir.Readdirnames(0)
 162		dir.Close()
 163	}
 164	templinfo := getInfo(r)
 165	templinfo["Emus"] = emunames
 166	templinfo["Memes"] = memenames
 167	err = readviews.Execute(w, "funzone.html", templinfo)
 168	if err != nil {
 169		log.Print(err)
 170	}
 171}
 172
 173func showrss(w http.ResponseWriter, r *http.Request) {
 174	name := mux.Vars(r)["name"]
 175
 176	var honks []*Honk
 177	if name != "" {
 178		honks = gethonksbyuser(name, false, 0)
 179	} else {
 180		honks = getpublichonks()
 181	}
 182	reverbolate(-1, honks)
 183
 184	home := fmt.Sprintf("https://%s/", serverName)
 185	base := home
 186	if name != "" {
 187		home += "u/" + name
 188		name += " "
 189	}
 190	feed := rss.Feed{
 191		Title:       name + "honk",
 192		Link:        home,
 193		Description: name + "honk rss",
 194		Image: &rss.Image{
 195			URL:   base + "icon.png",
 196			Title: name + "honk rss",
 197			Link:  home,
 198		},
 199	}
 200	var modtime time.Time
 201	for _, honk := range honks {
 202		if !firstclass(honk) {
 203			continue
 204		}
 205		desc := string(honk.HTML)
 206		if t := honk.Time; t != nil {
 207			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 208			if t.Duration != 0 {
 209				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 210			}
 211		}
 212		if p := honk.Place; p != nil {
 213			desc += string(templates.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 214				p.Url, p.Name, p.Latitude, p.Longitude))
 215		}
 216		for _, d := range honk.Donks {
 217			desc += string(templates.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 218				d.URL, d.Desc))
 219			if strings.HasPrefix(d.Media, "image") {
 220				desc += string(templates.Sprintf(`<img src="%s">`, d.URL))
 221			}
 222		}
 223
 224		feed.Items = append(feed.Items, &rss.Item{
 225			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 226			Description: rss.CData{Data: desc},
 227			Link:        honk.URL,
 228			PubDate:     honk.Date.Format(time.RFC1123),
 229			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 230		})
 231		if honk.Date.After(modtime) {
 232			modtime = honk.Date
 233		}
 234	}
 235	if !debugMode {
 236		w.Header().Set("Cache-Control", "max-age=300")
 237		w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 238	}
 239
 240	err := feed.Write(w)
 241	if err != nil {
 242		log.Printf("error writing rss: %s", err)
 243	}
 244}
 245
 246func crappola(j junk.Junk) bool {
 247	t, _ := j.GetString("type")
 248	a, _ := j.GetString("actor")
 249	o, _ := j.GetString("object")
 250	if t == "Delete" && a == o {
 251		log.Printf("crappola from %s", a)
 252		return true
 253	}
 254	return false
 255}
 256
 257func ping(user *WhatAbout, who string) {
 258	var box *Box
 259	ok := boxofboxes.Get(who, &box)
 260	if !ok {
 261		log.Printf("no inbox to ping %s", who)
 262		return
 263	}
 264	j := junk.New()
 265	j["@context"] = itiswhatitis
 266	j["type"] = "Ping"
 267	j["id"] = user.URL + "/ping/" + xfiltrate()
 268	j["actor"] = user.URL
 269	j["to"] = who
 270	ki := ziggy(user.ID)
 271	if ki == nil {
 272		return
 273	}
 274	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 275	if err != nil {
 276		log.Printf("can't send ping: %s", err)
 277		return
 278	}
 279	log.Printf("sent ping to %s: %s", who, j["id"])
 280}
 281
 282func pong(user *WhatAbout, who string, obj string) {
 283	var box *Box
 284	ok := boxofboxes.Get(who, &box)
 285	if !ok {
 286		log.Printf("no inbox to pong %s", who)
 287		return
 288	}
 289	j := junk.New()
 290	j["@context"] = itiswhatitis
 291	j["type"] = "Pong"
 292	j["id"] = user.URL + "/pong/" + xfiltrate()
 293	j["actor"] = user.URL
 294	j["to"] = who
 295	j["object"] = obj
 296	ki := ziggy(user.ID)
 297	if ki == nil {
 298		return
 299	}
 300	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 301	if err != nil {
 302		log.Printf("can't send pong: %s", err)
 303		return
 304	}
 305}
 306
 307func inbox(w http.ResponseWriter, r *http.Request) {
 308	name := mux.Vars(r)["name"]
 309	user, err := butwhatabout(name)
 310	if err != nil {
 311		http.NotFound(w, r)
 312		return
 313	}
 314	if stealthmode(user.ID, r) {
 315		http.NotFound(w, r)
 316		return
 317	}
 318	var buf bytes.Buffer
 319	limiter := io.LimitReader(r.Body, 1*1024*1024)
 320	io.Copy(&buf, limiter)
 321	payload := buf.Bytes()
 322	j, err := junk.FromBytes(payload)
 323	if err != nil {
 324		log.Printf("bad payload: %s", err)
 325		io.WriteString(os.Stdout, "bad payload\n")
 326		os.Stdout.Write(payload)
 327		io.WriteString(os.Stdout, "\n")
 328		return
 329	}
 330
 331	if crappola(j) {
 332		return
 333	}
 334	what, _ := j.GetString("type")
 335	obj, _ := j.GetString("object")
 336	if what == "Like" || (what == "EmojiReact" && originate(obj) != serverName) {
 337		return
 338	}
 339	who, _ := j.GetString("actor")
 340	if rejectactor(user.ID, who) {
 341		return
 342	}
 343
 344	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 345	if err != nil && keyname != "" {
 346		savingthrow(keyname)
 347		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 348	}
 349	if err != nil {
 350		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 351		if keyname != "" {
 352			log.Printf("bad signature from %s", keyname)
 353			io.WriteString(os.Stdout, "bad payload\n")
 354			os.Stdout.Write(payload)
 355			io.WriteString(os.Stdout, "\n")
 356		}
 357		http.Error(w, "what did you call me?", http.StatusTeapot)
 358		return
 359	}
 360	origin := keymatch(keyname, who)
 361	if origin == "" {
 362		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 363		return
 364	}
 365
 366	switch what {
 367	case "Ping":
 368		id, _ := j.GetString("id")
 369		log.Printf("ping from %s: %s", who, id)
 370		pong(user, who, obj)
 371	case "Pong":
 372		log.Printf("pong from %s: %s", who, obj)
 373	case "Follow":
 374		if obj != user.URL {
 375			log.Printf("can't follow %s", obj)
 376			return
 377		}
 378		log.Printf("updating honker follow: %s", who)
 379
 380		var x string
 381		db := opendatabase()
 382		row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('dub', 'undub')", who, user.ID)
 383		err = row.Scan(&x)
 384		if err != sql.ErrNoRows {
 385			log.Printf("duplicate follow request: %s", who)
 386			_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, who, "undub")
 387			if err != nil {
 388				log.Printf("error updating honker: %s", err)
 389			}
 390		} else {
 391			stmtSaveDub.Exec(user.ID, who, who, "dub")
 392		}
 393		go rubadubdub(user, j)
 394	case "Accept":
 395		log.Printf("updating honker accept: %s", who)
 396		var name string
 397		db := opendatabase()
 398		row := db.QueryRow("select name from honkers where userid = ? and xid = ? and flavor in ('presub')",
 399			user.ID, who)
 400		err := row.Scan(&name)
 401		if err != nil {
 402			log.Printf("can't get honker name: %s", err)
 403			return
 404		}
 405		_, err = stmtUpdateFlavor.Exec("sub", user.ID, who, name, "presub")
 406		if err != nil {
 407			log.Printf("error updating honker: %s", err)
 408			return
 409		}
 410	case "Update":
 411		obj, ok := j.GetMap("object")
 412		if ok {
 413			what, _ := obj.GetString("type")
 414			switch what {
 415			case "Person":
 416				return
 417			case "Question":
 418				return
 419			case "Note":
 420				go xonksaver(user, j, origin)
 421				return
 422			}
 423		}
 424		log.Printf("unknown Update activity")
 425		dumpactivity(j)
 426	case "Undo":
 427		obj, ok := j.GetMap("object")
 428		if !ok {
 429			log.Printf("unknown undo no object")
 430			return
 431		}
 432		what, _ := obj.GetString("type")
 433		switch what {
 434		case "Follow":
 435			log.Printf("updating honker undo: %s", who)
 436			_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, who, "dub")
 437			if err != nil {
 438				log.Printf("error updating honker: %s", err)
 439				return
 440			}
 441		case "Announce":
 442			xid, _ := obj.GetString("object")
 443			log.Printf("undo announce: %s", xid)
 444		case "Like":
 445		default:
 446			log.Printf("unknown undo: %s", what)
 447		}
 448	default:
 449		go xonksaver(user, j, origin)
 450	}
 451}
 452
 453func serverinbox(w http.ResponseWriter, r *http.Request) {
 454	user := getserveruser()
 455	if stealthmode(user.ID, r) {
 456		http.NotFound(w, r)
 457		return
 458	}
 459	var buf bytes.Buffer
 460	io.Copy(&buf, r.Body)
 461	payload := buf.Bytes()
 462	j, err := junk.FromBytes(payload)
 463	if err != nil {
 464		log.Printf("bad payload: %s", err)
 465		io.WriteString(os.Stdout, "bad payload\n")
 466		os.Stdout.Write(payload)
 467		io.WriteString(os.Stdout, "\n")
 468		return
 469	}
 470	if crappola(j) {
 471		return
 472	}
 473	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 474	if err != nil && keyname != "" {
 475		savingthrow(keyname)
 476		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 477	}
 478	if err != nil {
 479		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 480		if keyname != "" {
 481			log.Printf("bad signature from %s", keyname)
 482			io.WriteString(os.Stdout, "bad payload\n")
 483			os.Stdout.Write(payload)
 484			io.WriteString(os.Stdout, "\n")
 485		}
 486		http.Error(w, "what did you call me?", http.StatusTeapot)
 487		return
 488	}
 489	who, _ := j.GetString("actor")
 490	origin := keymatch(keyname, who)
 491	if origin == "" {
 492		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 493		return
 494	}
 495	if rejectactor(user.ID, who) {
 496		return
 497	}
 498	re_ont := regexp.MustCompile("https://" + serverName + "/o/([[:alnum:]]+)")
 499	what, _ := j.GetString("type")
 500	log.Printf("server got a %s", what)
 501	switch what {
 502	case "Follow":
 503		obj, _ := j.GetString("object")
 504		if obj == user.URL {
 505			log.Printf("can't follow the server!")
 506			return
 507		}
 508		m := re_ont.FindStringSubmatch(obj)
 509		if len(m) != 2 {
 510			log.Printf("not sure how to handle this")
 511			return
 512		}
 513		ont := "#" + m[1]
 514		log.Printf("%s wants to follow %s", who, ont)
 515		var x string
 516		db := opendatabase()
 517		row := db.QueryRow("select xid from honkers where name = ? and xid = ? and userid = ? and flavor in ('dub', 'undub')", ont, who, user.ID)
 518		err = row.Scan(&x)
 519		if err != sql.ErrNoRows {
 520			log.Printf("duplicate follow request: %s", who)
 521			_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, ont, "undub")
 522			if err != nil {
 523				log.Printf("error updating honker: %s", err)
 524			}
 525		} else {
 526			stmtSaveDub.Exec(user.ID, ont, who, "dub")
 527		}
 528		go rubadubdub(user, j)
 529	case "Undo":
 530		obj, ok := j.GetMap("object")
 531		if !ok {
 532			log.Printf("unknown undo no object")
 533			return
 534		}
 535		what, _ := obj.GetString("type")
 536		if what != "Follow" {
 537			log.Printf("unknown undo: %s", what)
 538		}
 539		targ, _ := obj.GetString("object")
 540		m := re_ont.FindStringSubmatch(targ)
 541		if len(m) != 2 {
 542			log.Printf("not sure how to handle this")
 543			return
 544		}
 545		ont := "#" + m[1]
 546		log.Printf("updating honker undo: %s %s", who, ont)
 547		_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, ont, "dub")
 548		if err != nil {
 549			log.Printf("error updating honker: %s", err)
 550			return
 551		}
 552	default:
 553		log.Printf("unhandled server activity: %s", what)
 554		dumpactivity(j)
 555	}
 556}
 557
 558func serveractor(w http.ResponseWriter, r *http.Request) {
 559	user := getserveruser()
 560	if stealthmode(user.ID, r) {
 561		http.NotFound(w, r)
 562		return
 563	}
 564	j := junkuser(user)
 565	w.Write(j)
 566}
 567
 568func ximport(w http.ResponseWriter, r *http.Request) {
 569	u := login.GetUserInfo(r)
 570	xid := strings.TrimSpace(r.FormValue("xid"))
 571	xonk := getxonk(u.UserID, xid)
 572	if xonk == nil {
 573		p, _ := investigate(xid)
 574		if p != nil {
 575			xid = p.XID
 576		}
 577		j, err := GetJunk(xid)
 578		if err != nil {
 579			http.Error(w, "error getting external object", http.StatusInternalServerError)
 580			log.Printf("error getting external object: %s", err)
 581			return
 582		}
 583		allinjest(originate(xid), j)
 584		log.Printf("importing %s", xid)
 585		user, _ := butwhatabout(u.Username)
 586
 587		info, _ := somethingabout(j)
 588		if info == nil {
 589			xonk = xonksaver(user, j, originate(xid))
 590		} else if info.What == SomeActor {
 591			outbox, _ := j.GetString("outbox")
 592			gimmexonks(user, outbox)
 593			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 594			return
 595		} else if info.What == SomeCollection {
 596			gimmexonks(user, xid)
 597			http.Redirect(w, r, "/xzone", http.StatusSeeOther)
 598			return
 599		}
 600	}
 601	convoy := ""
 602	if xonk != nil {
 603		convoy = xonk.Convoy
 604	}
 605	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 606}
 607
 608func xzone(w http.ResponseWriter, r *http.Request) {
 609	u := login.GetUserInfo(r)
 610	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 611	if err != nil {
 612		log.Printf("query err: %s", err)
 613		return
 614	}
 615	defer rows.Close()
 616	var honkers []Honker
 617	for rows.Next() {
 618		var xid string
 619		rows.Scan(&xid)
 620		honkers = append(honkers, Honker{XID: xid})
 621	}
 622	rows.Close()
 623	for i, _ := range honkers {
 624		_, honkers[i].Handle = handles(honkers[i].XID)
 625	}
 626	templinfo := getInfo(r)
 627	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 628	templinfo["Honkers"] = honkers
 629	err = readviews.Execute(w, "xzone.html", templinfo)
 630	if err != nil {
 631		log.Print(err)
 632	}
 633}
 634
 635var oldoutbox = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
 636	user, err := butwhatabout(name)
 637	if err != nil {
 638		return nil, false
 639	}
 640	honks := gethonksbyuser(name, false, 0)
 641	if len(honks) > 20 {
 642		honks = honks[0:20]
 643	}
 644
 645	var jonks []junk.Junk
 646	for _, h := range honks {
 647		j, _ := jonkjonk(user, h)
 648		jonks = append(jonks, j)
 649	}
 650
 651	j := junk.New()
 652	j["@context"] = itiswhatitis
 653	j["id"] = user.URL + "/outbox"
 654	j["attributedTo"] = user.URL
 655	j["type"] = "OrderedCollection"
 656	j["totalItems"] = len(jonks)
 657	j["orderedItems"] = jonks
 658
 659	return j.ToBytes(), true
 660}, Duration: 1 * time.Minute})
 661
 662func outbox(w http.ResponseWriter, r *http.Request) {
 663	name := mux.Vars(r)["name"]
 664	user, err := butwhatabout(name)
 665	if err != nil {
 666		http.NotFound(w, r)
 667		return
 668	}
 669	if stealthmode(user.ID, r) {
 670		http.NotFound(w, r)
 671		return
 672	}
 673	var j []byte
 674	ok := oldoutbox.Get(name, &j)
 675	if ok {
 676		w.Header().Set("Content-Type", theonetruename)
 677		w.Write(j)
 678	} else {
 679		http.NotFound(w, r)
 680	}
 681}
 682
 683var oldempties = cache.New(cache.Options{Filler: func(url string) ([]byte, bool) {
 684	colname := "/followers"
 685	if strings.HasSuffix(url, "/following") {
 686		colname = "/following"
 687	}
 688	user := fmt.Sprintf("https://%s%s", serverName, url[:len(url)-10])
 689	j := junk.New()
 690	j["@context"] = itiswhatitis
 691	j["id"] = user + colname
 692	j["attributedTo"] = user
 693	j["type"] = "OrderedCollection"
 694	j["totalItems"] = 0
 695	j["orderedItems"] = []junk.Junk{}
 696
 697	return j.ToBytes(), true
 698}})
 699
 700func emptiness(w http.ResponseWriter, r *http.Request) {
 701	name := mux.Vars(r)["name"]
 702	user, err := butwhatabout(name)
 703	if err != nil {
 704		http.NotFound(w, r)
 705		return
 706	}
 707	if stealthmode(user.ID, r) {
 708		http.NotFound(w, r)
 709		return
 710	}
 711	var j []byte
 712	ok := oldempties.Get(r.URL.Path, &j)
 713	if ok {
 714		w.Header().Set("Content-Type", theonetruename)
 715		w.Write(j)
 716	} else {
 717		http.NotFound(w, r)
 718	}
 719}
 720
 721func showuser(w http.ResponseWriter, r *http.Request) {
 722	name := mux.Vars(r)["name"]
 723	user, err := butwhatabout(name)
 724	if err != nil {
 725		log.Printf("user not found %s: %s", name, err)
 726		http.NotFound(w, r)
 727		return
 728	}
 729	if stealthmode(user.ID, r) {
 730		http.NotFound(w, r)
 731		return
 732	}
 733	if friendorfoe(r.Header.Get("Accept")) {
 734		j, ok := asjonker(name)
 735		if ok {
 736			w.Header().Set("Content-Type", theonetruename)
 737			w.Write(j)
 738		} else {
 739			http.NotFound(w, r)
 740		}
 741		return
 742	}
 743	u := login.GetUserInfo(r)
 744	honks := gethonksbyuser(name, u != nil && u.Username == name, 0)
 745	templinfo := getInfo(r)
 746	templinfo["Name"] = user.Name
 747	whatabout := user.About
 748	whatabout = markitzero(user.About)
 749	templinfo["WhatAbout"] = template.HTML(whatabout)
 750	templinfo["ServerMessage"] = ""
 751	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 752	honkpage(w, u, honks, templinfo)
 753}
 754
 755func showhonker(w http.ResponseWriter, r *http.Request) {
 756	u := login.GetUserInfo(r)
 757	name := mux.Vars(r)["name"]
 758	var honks []*Honk
 759	if name == "" {
 760		name = r.FormValue("xid")
 761		honks = gethonksbyxonker(u.UserID, name, 0)
 762	} else {
 763		honks = gethonksbyhonker(u.UserID, name, 0)
 764	}
 765	msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, name, name)
 766	templinfo := getInfo(r)
 767	templinfo["PageName"] = "honker"
 768	templinfo["PageArg"] = name
 769	templinfo["ServerMessage"] = msg
 770	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 771	honkpage(w, u, honks, templinfo)
 772}
 773
 774func showcombo(w http.ResponseWriter, r *http.Request) {
 775	name := mux.Vars(r)["name"]
 776	u := login.GetUserInfo(r)
 777	honks := gethonksbycombo(u.UserID, name, 0)
 778	honks = osmosis(honks, u.UserID, true)
 779	templinfo := getInfo(r)
 780	templinfo["PageName"] = "combo"
 781	templinfo["PageArg"] = name
 782	templinfo["ServerMessage"] = "honks by combo: " + name
 783	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 784	honkpage(w, u, honks, templinfo)
 785}
 786func showconvoy(w http.ResponseWriter, r *http.Request) {
 787	c := r.FormValue("c")
 788	u := login.GetUserInfo(r)
 789	honks := gethonksbyconvoy(u.UserID, c, 0)
 790	templinfo := getInfo(r)
 791	if len(honks) > 0 {
 792		templinfo["TopHID"] = honks[0].ID
 793	}
 794	honks = osmosis(honks, u.UserID, false)
 795	reversehonks(honks)
 796	templinfo["PageName"] = "convoy"
 797	templinfo["PageArg"] = c
 798	templinfo["ServerMessage"] = "honks in convoy: " + c
 799	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 800	honkpage(w, u, honks, templinfo)
 801}
 802func showsearch(w http.ResponseWriter, r *http.Request) {
 803	q := r.FormValue("q")
 804	u := login.GetUserInfo(r)
 805	honks := gethonksbysearch(u.UserID, q, 0)
 806	templinfo := getInfo(r)
 807	templinfo["PageName"] = "search"
 808	templinfo["PageArg"] = q
 809	templinfo["ServerMessage"] = "honks for search: " + q
 810	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 811	honkpage(w, u, honks, templinfo)
 812}
 813func showontology(w http.ResponseWriter, r *http.Request) {
 814	name := mux.Vars(r)["name"]
 815	u := login.GetUserInfo(r)
 816	var userid int64 = -1
 817	if u != nil {
 818		userid = u.UserID
 819	}
 820	honks := gethonksbyontology(userid, "#"+name, 0)
 821	if friendorfoe(r.Header.Get("Accept")) {
 822		if len(honks) > 40 {
 823			honks = honks[0:40]
 824		}
 825
 826		var xids []string
 827		for _, h := range honks {
 828			xids = append(xids, h.XID)
 829		}
 830
 831		user := getserveruser()
 832
 833		j := junk.New()
 834		j["@context"] = itiswhatitis
 835		j["id"] = fmt.Sprintf("https://%s/o/%s", serverName, name)
 836		j["name"] = "#" + name
 837		j["attributedTo"] = user.URL
 838		j["type"] = "OrderedCollection"
 839		j["totalItems"] = len(xids)
 840		j["orderedItems"] = xids
 841
 842		j.Write(w)
 843		return
 844	}
 845
 846	templinfo := getInfo(r)
 847	templinfo["ServerMessage"] = "honks by ontology: " + name
 848	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 849	honkpage(w, u, honks, templinfo)
 850}
 851
 852type Ont struct {
 853	Name  string
 854	Count int64
 855}
 856
 857func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 858	u := login.GetUserInfo(r)
 859	var userid int64 = -1
 860	if u != nil {
 861		userid = u.UserID
 862	}
 863	rows, err := stmtAllOnts.Query(userid)
 864	if err != nil {
 865		log.Printf("selection error: %s", err)
 866		return
 867	}
 868	defer rows.Close()
 869	var onts []Ont
 870	for rows.Next() {
 871		var o Ont
 872		err := rows.Scan(&o.Name, &o.Count)
 873		if err != nil {
 874			log.Printf("error scanning ont: %s", err)
 875			continue
 876		}
 877		if len(o.Name) > 24 {
 878			continue
 879		}
 880		o.Name = o.Name[1:]
 881		onts = append(onts, o)
 882	}
 883	sort.Slice(onts, func(i, j int) bool {
 884		return onts[i].Name < onts[j].Name
 885	})
 886	if u == nil && !debugMode {
 887		w.Header().Set("Cache-Control", "max-age=300")
 888	}
 889	templinfo := getInfo(r)
 890	templinfo["Onts"] = onts
 891	err = readviews.Execute(w, "onts.html", templinfo)
 892	if err != nil {
 893		log.Print(err)
 894	}
 895}
 896
 897type Track struct {
 898	xid string
 899	who string
 900}
 901
 902func getbacktracks(xid string) []string {
 903	c := make(chan bool)
 904	dumptracks <- c
 905	<-c
 906	row := stmtGetTracks.QueryRow(xid)
 907	var rawtracks string
 908	err := row.Scan(&rawtracks)
 909	if err != nil {
 910		if err != sql.ErrNoRows {
 911			log.Printf("error scanning tracks: %s", err)
 912		}
 913		return nil
 914	}
 915	var rcpts []string
 916	for _, f := range strings.Split(rawtracks, " ") {
 917		idx := strings.LastIndexByte(f, '#')
 918		if idx != -1 {
 919			f = f[:idx]
 920		}
 921		if !strings.HasPrefix(f, "https://") {
 922			f = fmt.Sprintf("%%https://%s/inbox", f)
 923		}
 924		rcpts = append(rcpts, f)
 925	}
 926	return rcpts
 927}
 928
 929func savetracks(tracks map[string][]string) {
 930	db := opendatabase()
 931	tx, err := db.Begin()
 932	if err != nil {
 933		log.Printf("savetracks begin error: %s", err)
 934		return
 935	}
 936	defer func() {
 937		err := tx.Commit()
 938		if err != nil {
 939			log.Printf("savetracks commit error: %s", err)
 940		}
 941
 942	}()
 943	stmtGetTracks, err := tx.Prepare("select fetches from tracks where xid = ?")
 944	if err != nil {
 945		log.Printf("savetracks error: %s", err)
 946		return
 947	}
 948	stmtNewTracks, err := tx.Prepare("insert into tracks (xid, fetches) values (?, ?)")
 949	if err != nil {
 950		log.Printf("savetracks error: %s", err)
 951		return
 952	}
 953	stmtUpdateTracks, err := tx.Prepare("update tracks set fetches = ? where xid = ?")
 954	if err != nil {
 955		log.Printf("savetracks error: %s", err)
 956		return
 957	}
 958	count := 0
 959	for xid, f := range tracks {
 960		count += len(f)
 961		var prev string
 962		row := stmtGetTracks.QueryRow(xid)
 963		err := row.Scan(&prev)
 964		if err == sql.ErrNoRows {
 965			f = oneofakind(f)
 966			stmtNewTracks.Exec(xid, strings.Join(f, " "))
 967		} else if err == nil {
 968			all := append(strings.Split(prev, " "), f...)
 969			all = oneofakind(all)
 970			stmtUpdateTracks.Exec(strings.Join(all, " "))
 971		} else {
 972			log.Printf("savetracks error: %s", err)
 973		}
 974	}
 975	log.Printf("saved %d new fetches", count)
 976}
 977
 978var trackchan = make(chan Track)
 979var dumptracks = make(chan chan bool)
 980
 981func tracker() {
 982	timeout := 4 * time.Minute
 983	sleeper := time.NewTimer(timeout)
 984	tracks := make(map[string][]string)
 985	workinprogress++
 986	for {
 987		select {
 988		case track := <-trackchan:
 989			tracks[track.xid] = append(tracks[track.xid], track.who)
 990		case <-sleeper.C:
 991			if len(tracks) > 0 {
 992				go savetracks(tracks)
 993				tracks = make(map[string][]string)
 994			}
 995			sleeper.Reset(timeout)
 996		case c := <-dumptracks:
 997			if len(tracks) > 0 {
 998				savetracks(tracks)
 999			}
1000			c <- true
1001		case <-endoftheworld:
1002			if len(tracks) > 0 {
1003				savetracks(tracks)
1004			}
1005			readyalready <- true
1006			return
1007		}
1008	}
1009}
1010
1011var re_keyholder = regexp.MustCompile(`keyId="([^"]+)"`)
1012
1013func trackback(xid string, r *http.Request) {
1014	agent := r.UserAgent()
1015	who := originate(agent)
1016	sig := r.Header.Get("Signature")
1017	if sig != "" {
1018		m := re_keyholder.FindStringSubmatch(sig)
1019		if len(m) == 2 {
1020			who = m[1]
1021		}
1022	}
1023	if who != "" {
1024		trackchan <- Track{xid: xid, who: who}
1025	}
1026}
1027
1028func showonehonk(w http.ResponseWriter, r *http.Request) {
1029	name := mux.Vars(r)["name"]
1030	user, err := butwhatabout(name)
1031	if err != nil {
1032		http.NotFound(w, r)
1033		return
1034	}
1035	if stealthmode(user.ID, r) {
1036		http.NotFound(w, r)
1037		return
1038	}
1039	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
1040
1041	if friendorfoe(r.Header.Get("Accept")) {
1042		j, ok := gimmejonk(xid)
1043		if ok {
1044			trackback(xid, r)
1045			w.Header().Set("Content-Type", theonetruename)
1046			w.Write(j)
1047		} else {
1048			http.NotFound(w, r)
1049		}
1050		return
1051	}
1052	honk := getxonk(user.ID, xid)
1053	if honk == nil {
1054		http.NotFound(w, r)
1055		return
1056	}
1057	u := login.GetUserInfo(r)
1058	if u != nil && u.UserID != user.ID {
1059		u = nil
1060	}
1061	if !honk.Public {
1062		if u == nil {
1063			http.NotFound(w, r)
1064			return
1065
1066		}
1067		templinfo := getInfo(r)
1068		templinfo["ServerMessage"] = "one honk maybe more"
1069		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1070		honkpage(w, u, []*Honk{honk}, templinfo)
1071		return
1072	}
1073	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1074	reversehonks(rawhonks)
1075	var honks []*Honk
1076	for _, h := range rawhonks {
1077		if h.XID == xid && len(honks) != 0 {
1078			h.Style += " glow"
1079		}
1080		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
1081			honks = append(honks, h)
1082		}
1083	}
1084
1085	templinfo := getInfo(r)
1086	templinfo["ServerMessage"] = "one honk maybe more"
1087	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1088	honkpage(w, u, honks, templinfo)
1089}
1090
1091func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
1092	var userid int64 = -1
1093	if u != nil {
1094		userid = u.UserID
1095		templinfo["User"], _ = butwhatabout(u.Username)
1096	}
1097	reverbolate(userid, honks)
1098	templinfo["Honks"] = honks
1099	templinfo["MapLink"] = getmaplink(u)
1100	if templinfo["TopHID"] == nil {
1101		if len(honks) > 0 {
1102			templinfo["TopHID"] = honks[0].ID
1103		} else {
1104			templinfo["TopHID"] = 0
1105		}
1106	}
1107	if u == nil && !debugMode {
1108		w.Header().Set("Cache-Control", "max-age=60")
1109	}
1110	err := readviews.Execute(w, "honkpage.html", templinfo)
1111	if err != nil {
1112		log.Print(err)
1113	}
1114}
1115
1116func saveuser(w http.ResponseWriter, r *http.Request) {
1117	whatabout := r.FormValue("whatabout")
1118	whatabout = strings.Replace(whatabout, "\r", "", -1)
1119	u := login.GetUserInfo(r)
1120	user, _ := butwhatabout(u.Username)
1121	db := opendatabase()
1122	options := user.Options
1123	if r.FormValue("skinny") == "skinny" {
1124		options.SkinnyCSS = true
1125	} else {
1126		options.SkinnyCSS = false
1127	}
1128	if r.FormValue("omitimages") == "omitimages" {
1129		options.OmitImages = true
1130	} else {
1131		options.OmitImages = false
1132	}
1133	if r.FormValue("maps") == "apple" {
1134		options.MapLink = "apple"
1135	} else {
1136		options.MapLink = ""
1137	}
1138	options.Reaction = r.FormValue("reaction")
1139	if ava := re_avatar.FindString(whatabout); ava != "" {
1140		whatabout = re_avatar.ReplaceAllString(whatabout, "")
1141		ava = ava[7:]
1142		if ava[0] == ' ' {
1143			ava = ava[1:]
1144		}
1145		options.Avatar = fmt.Sprintf("https://%s/meme/%s", serverName, ava)
1146	} else {
1147		options.Avatar = ""
1148	}
1149	whatabout = strings.TrimSpace(whatabout)
1150	j, err := jsonify(options)
1151	if err == nil {
1152		_, err = db.Exec("update users set about = ?, options = ? where username = ?", whatabout, j, u.Username)
1153	}
1154	if err != nil {
1155		log.Printf("error bouting what: %s", err)
1156	}
1157	somenamedusers.Clear(u.Username)
1158	somenumberedusers.Clear(u.UserID)
1159	oldjonkers.Clear(u.Username)
1160
1161	updateMe(u.Username)
1162
1163	http.Redirect(w, r, "/account", http.StatusSeeOther)
1164}
1165
1166func bonkit(xid string, user *WhatAbout) {
1167	log.Printf("bonking %s", xid)
1168
1169	xonk := getxonk(user.ID, xid)
1170	if xonk == nil {
1171		return
1172	}
1173	if !xonk.Public {
1174		return
1175	}
1176	if xonk.IsBonked() {
1177		return
1178	}
1179	donksforhonks([]*Honk{xonk})
1180
1181	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
1182	if err != nil {
1183		log.Printf("error acking bonk: %s", err)
1184	}
1185
1186	oonker := xonk.Oonker
1187	if oonker == "" {
1188		oonker = xonk.Honker
1189	}
1190	dt := time.Now().UTC()
1191	bonk := &Honk{
1192		UserID:   user.ID,
1193		Username: user.Name,
1194		What:     "bonk",
1195		Honker:   user.URL,
1196		Oonker:   oonker,
1197		XID:      xonk.XID,
1198		RID:      xonk.RID,
1199		Noise:    xonk.Noise,
1200		Precis:   xonk.Precis,
1201		URL:      xonk.URL,
1202		Date:     dt,
1203		Donks:    xonk.Donks,
1204		Whofore:  2,
1205		Convoy:   xonk.Convoy,
1206		Audience: []string{thewholeworld, oonker},
1207		Public:   true,
1208		Format:   "html",
1209		Place:    xonk.Place,
1210		Onts:     xonk.Onts,
1211		Time:     xonk.Time,
1212	}
1213
1214	err = savehonk(bonk)
1215	if err != nil {
1216		log.Printf("uh oh")
1217		return
1218	}
1219
1220	go honkworldwide(user, bonk)
1221}
1222
1223func submitbonk(w http.ResponseWriter, r *http.Request) {
1224	xid := r.FormValue("xid")
1225	userinfo := login.GetUserInfo(r)
1226	user, _ := butwhatabout(userinfo.Username)
1227
1228	bonkit(xid, user)
1229
1230	if r.FormValue("js") != "1" {
1231		templinfo := getInfo(r)
1232		templinfo["ServerMessage"] = "Bonked!"
1233		err := readviews.Execute(w, "msg.html", templinfo)
1234		if err != nil {
1235			log.Print(err)
1236		}
1237	}
1238}
1239
1240func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string, aux string) {
1241	zonk := &Honk{
1242		What:     what,
1243		XID:      xonk.XID,
1244		Date:     time.Now().UTC(),
1245		Audience: oneofakind(xonk.Audience),
1246		Noise:    aux,
1247	}
1248	zonk.Public = loudandproud(zonk.Audience)
1249
1250	log.Printf("announcing %sed honk: %s", what, xonk.XID)
1251	go honkworldwide(user, zonk)
1252}
1253
1254func zonkit(w http.ResponseWriter, r *http.Request) {
1255	wherefore := r.FormValue("wherefore")
1256	what := r.FormValue("what")
1257	userinfo := login.GetUserInfo(r)
1258	user, _ := butwhatabout(userinfo.Username)
1259
1260	if wherefore == "save" {
1261		xonk := getxonk(userinfo.UserID, what)
1262		if xonk != nil {
1263			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
1264			if err != nil {
1265				log.Printf("error saving: %s", err)
1266			}
1267		}
1268		return
1269	}
1270
1271	if wherefore == "unsave" {
1272		xonk := getxonk(userinfo.UserID, what)
1273		if xonk != nil {
1274			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
1275			if err != nil {
1276				log.Printf("error unsaving: %s", err)
1277			}
1278		}
1279		return
1280	}
1281
1282	if wherefore == "react" {
1283		reaction := user.Options.Reaction
1284		if r2 := r.FormValue("reaction"); r2 != "" {
1285			reaction = r2
1286		}
1287		if reaction == "none" {
1288			return
1289		}
1290		xonk := getxonk(userinfo.UserID, what)
1291		if xonk != nil {
1292			_, err := stmtUpdateFlags.Exec(flagIsReacted, xonk.ID)
1293			if err != nil {
1294				log.Printf("error saving: %s", err)
1295			}
1296			sendzonkofsorts(xonk, user, "react", reaction)
1297		}
1298		return
1299	}
1300
1301	// my hammer is too big, oh well
1302	defer oldjonks.Flush()
1303
1304	if wherefore == "ack" {
1305		xonk := getxonk(userinfo.UserID, what)
1306		if xonk != nil && !xonk.IsAcked() {
1307			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
1308			if err != nil {
1309				log.Printf("error acking: %s", err)
1310			}
1311			sendzonkofsorts(xonk, user, "ack", "")
1312		}
1313		return
1314	}
1315
1316	if wherefore == "deack" {
1317		xonk := getxonk(userinfo.UserID, what)
1318		if xonk != nil && xonk.IsAcked() {
1319			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
1320			if err != nil {
1321				log.Printf("error deacking: %s", err)
1322			}
1323			sendzonkofsorts(xonk, user, "deack", "")
1324		}
1325		return
1326	}
1327
1328	if wherefore == "bonk" {
1329		user, _ := butwhatabout(userinfo.Username)
1330		bonkit(what, user)
1331		return
1332	}
1333
1334	if wherefore == "unbonk" {
1335		xonk := getbonk(userinfo.UserID, what)
1336		if xonk != nil {
1337			deletehonk(xonk.ID)
1338			xonk = getxonk(userinfo.UserID, what)
1339			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
1340			if err != nil {
1341				log.Printf("error unbonking: %s", err)
1342			}
1343			sendzonkofsorts(xonk, user, "unbonk", "")
1344		}
1345		return
1346	}
1347
1348	if wherefore == "untag" {
1349		xonk := getxonk(userinfo.UserID, what)
1350		if xonk != nil {
1351			_, err := stmtUpdateFlags.Exec(flagIsUntagged, xonk.ID)
1352			if err != nil {
1353				log.Printf("error untagging: %s", err)
1354			}
1355		}
1356		var badparents map[string]bool
1357		untagged.GetAndLock(userinfo.UserID, &badparents)
1358		badparents[what] = true
1359		untagged.Unlock()
1360		return
1361	}
1362
1363	log.Printf("zonking %s %s", wherefore, what)
1364	if wherefore == "zonk" {
1365		xonk := getxonk(userinfo.UserID, what)
1366		if xonk != nil {
1367			deletehonk(xonk.ID)
1368			if xonk.Whofore == 2 || xonk.Whofore == 3 {
1369				sendzonkofsorts(xonk, user, "zonk", "")
1370			}
1371		}
1372	}
1373	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
1374	if err != nil {
1375		log.Printf("error saving zonker: %s", err)
1376		return
1377	}
1378}
1379
1380func edithonkpage(w http.ResponseWriter, r *http.Request) {
1381	u := login.GetUserInfo(r)
1382	user, _ := butwhatabout(u.Username)
1383	xid := r.FormValue("xid")
1384	honk := getxonk(u.UserID, xid)
1385	if !canedithonk(user, honk) {
1386		http.Error(w, "no editing that please", http.StatusInternalServerError)
1387		return
1388	}
1389
1390	noise := honk.Noise
1391
1392	honks := []*Honk{honk}
1393	donksforhonks(honks)
1394	reverbolate(u.UserID, honks)
1395	templinfo := getInfo(r)
1396	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1397	templinfo["Honks"] = honks
1398	templinfo["MapLink"] = getmaplink(u)
1399	templinfo["Noise"] = noise
1400	templinfo["SavedPlace"] = honk.Place
1401	if tm := honk.Time; tm != nil {
1402		templinfo["ShowTime"] = ";"
1403		templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1404		templinfo["Duration"] = tm.Duration
1405	}
1406	templinfo["ServerMessage"] = "honk edit 2"
1407	templinfo["IsPreview"] = true
1408	templinfo["UpdateXID"] = honk.XID
1409	if len(honk.Donks) > 0 {
1410		templinfo["SavedFile"] = honk.Donks[0].XID
1411	}
1412	err := readviews.Execute(w, "honkpage.html", templinfo)
1413	if err != nil {
1414		log.Print(err)
1415	}
1416}
1417
1418func newhonkpage(w http.ResponseWriter, r *http.Request) {
1419	u := login.GetUserInfo(r)
1420	rid := r.FormValue("rid")
1421	noise := ""
1422
1423	xonk := getxonk(u.UserID, rid)
1424	if xonk != nil {
1425		_, replto := handles(xonk.Honker)
1426		if replto != "" {
1427			noise = "@" + replto + " "
1428		}
1429	}
1430
1431	templinfo := getInfo(r)
1432	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1433	templinfo["InReplyTo"] = rid
1434	templinfo["Noise"] = noise
1435	templinfo["ServerMessage"] = "compose honk"
1436	templinfo["IsPreview"] = true
1437	err := readviews.Execute(w, "honkpage.html", templinfo)
1438	if err != nil {
1439		log.Print(err)
1440	}
1441}
1442
1443func canedithonk(user *WhatAbout, honk *Honk) bool {
1444	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1445		return false
1446	}
1447	return true
1448}
1449
1450func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
1451	file, filehdr, err := r.FormFile("donk")
1452	if err != nil {
1453		if err != http.ErrMissingFile {
1454			log.Printf("error reading donk: %s", err)
1455			http.Error(w, "error reading donk", http.StatusUnsupportedMediaType)
1456		}
1457		return nil, err
1458	}
1459	var buf bytes.Buffer
1460	io.Copy(&buf, file)
1461	file.Close()
1462	data := buf.Bytes()
1463	xid := xfiltrate()
1464	var media, name string
1465	img, err := shrinkit(data)
1466	if err == nil {
1467		data = img.Data
1468		format := img.Format
1469		media = "image/" + format
1470		if format == "jpeg" {
1471			format = "jpg"
1472		}
1473		name = xid + "." + format
1474		xid = name
1475	} else {
1476		ct := http.DetectContentType(data)
1477		switch ct {
1478		case "application/pdf":
1479			maxsize := 10000000
1480			if len(data) > maxsize {
1481				log.Printf("bad image: %s too much pdf: %d", err, len(data))
1482				http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1483				return nil, err
1484			}
1485			media = ct
1486			xid += ".pdf"
1487			name = filehdr.Filename
1488			if name == "" {
1489				name = xid
1490			}
1491		default:
1492			maxsize := 100000
1493			if len(data) > maxsize {
1494				log.Printf("bad image: %s too much text: %d", err, len(data))
1495				http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1496				return nil, err
1497			}
1498			for i := 0; i < len(data); i++ {
1499				if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1500					log.Printf("bad image: %s not text: %d", err, data[i])
1501					http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1502					return nil, err
1503				}
1504			}
1505			media = "text/plain"
1506			xid += ".txt"
1507			name = filehdr.Filename
1508			if name == "" {
1509				name = xid
1510			}
1511		}
1512	}
1513	desc := strings.TrimSpace(r.FormValue("donkdesc"))
1514	if desc == "" {
1515		desc = name
1516	}
1517	url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1518	fileid, err := savefile(xid, name, desc, url, media, true, data)
1519	if err != nil {
1520		log.Printf("unable to save image: %s", err)
1521		http.Error(w, "failed to save attachment", http.StatusUnsupportedMediaType)
1522		return nil, err
1523	}
1524	d := &Donk{
1525		FileID: fileid,
1526		XID:    xid,
1527		Desc:   desc,
1528		URL:    url,
1529		Local:  true,
1530	}
1531	return d, nil
1532}
1533
1534func submitwebhonk(w http.ResponseWriter, r *http.Request) {
1535	h := submithonk(w, r)
1536	if h == nil {
1537		return
1538	}
1539	http.Redirect(w, r, h.XID[len(serverName)+8:], http.StatusSeeOther)
1540}
1541
1542// what a hot mess this function is
1543func submithonk(w http.ResponseWriter, r *http.Request) *Honk {
1544	rid := r.FormValue("rid")
1545	noise := r.FormValue("noise")
1546	format := r.FormValue("format")
1547	if format == "" {
1548		format = "markdown"
1549	}
1550	if !(format == "markdown" || format == "html") {
1551		http.Error(w, "unknown format", 500)
1552		return nil
1553	}
1554
1555	userinfo := login.GetUserInfo(r)
1556	user, _ := butwhatabout(userinfo.Username)
1557
1558	dt := time.Now().UTC()
1559	updatexid := r.FormValue("updatexid")
1560	var honk *Honk
1561	if updatexid != "" {
1562		honk = getxonk(userinfo.UserID, updatexid)
1563		if !canedithonk(user, honk) {
1564			http.Error(w, "no editing that please", http.StatusInternalServerError)
1565			return nil
1566		}
1567		honk.Date = dt
1568		honk.What = "update"
1569		honk.Format = format
1570	} else {
1571		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1572		what := "honk"
1573		if rid != "" {
1574			what = "tonk"
1575		}
1576		honk = &Honk{
1577			UserID:   userinfo.UserID,
1578			Username: userinfo.Username,
1579			What:     what,
1580			Honker:   user.URL,
1581			XID:      xid,
1582			Date:     dt,
1583			Format:   format,
1584		}
1585	}
1586
1587	noise = strings.Replace(noise, "\r", "", -1)
1588	noise = quickrename(noise, userinfo.UserID)
1589	noise = hooterize(noise)
1590	honk.Mentions = bunchofgrapes(noise)
1591	honk.Noise = noise
1592	translate(honk)
1593
1594	var convoy string
1595	if rid != "" {
1596		xonk := getxonk(userinfo.UserID, rid)
1597		if xonk == nil {
1598			http.Error(w, "replyto disappeared", http.StatusNotFound)
1599			return nil
1600		}
1601		if xonk.Public {
1602			honk.Audience = append(honk.Audience, xonk.Audience...)
1603		}
1604		convoy = xonk.Convoy
1605		for i, a := range honk.Audience {
1606			if a == thewholeworld {
1607				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1608				break
1609			}
1610		}
1611		honk.RID = rid
1612		if xonk.Precis != "" && honk.Precis == "" {
1613			honk.Precis = xonk.Precis
1614			if !(strings.HasPrefix(honk.Precis, "DZ:") || strings.HasPrefix(honk.Precis, "re: re: re: ")) {
1615				honk.Precis = "re: " + honk.Precis
1616			}
1617		}
1618	} else {
1619		honk.Audience = []string{thewholeworld}
1620	}
1621	if honk.Noise != "" && honk.Noise[0] == '@' {
1622		honk.Audience = append(grapevine(bunchofgrapes(honk.Noise)), honk.Audience...)
1623	} else {
1624		honk.Audience = append(honk.Audience, grapevine(bunchofgrapes(honk.Noise))...)
1625	}
1626
1627	if convoy == "" {
1628		convoy = "data:,electrichonkytonk-" + xfiltrate()
1629	}
1630	butnottooloud(honk.Audience)
1631	honk.Audience = oneofakind(honk.Audience)
1632	if len(honk.Audience) == 0 {
1633		log.Printf("honk to nowhere")
1634		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1635		return nil
1636	}
1637	honk.Public = loudandproud(honk.Audience)
1638	honk.Convoy = convoy
1639
1640	donkxid := r.FormValue("donkxid")
1641	if donkxid == "" {
1642		d, err := submitdonk(w, r)
1643		if err != nil && err != http.ErrMissingFile {
1644			return nil
1645		}
1646		if d != nil {
1647			honk.Donks = append(honk.Donks, d)
1648			donkxid = d.XID
1649		}
1650	} else {
1651		xid := donkxid
1652		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1653		donk := finddonk(url)
1654		if donk != nil {
1655			honk.Donks = append(honk.Donks, donk)
1656		} else {
1657			log.Printf("can't find file: %s", xid)
1658		}
1659	}
1660	memetize(honk)
1661	imaginate(honk)
1662
1663	placename := strings.TrimSpace(r.FormValue("placename"))
1664	placelat := strings.TrimSpace(r.FormValue("placelat"))
1665	placelong := strings.TrimSpace(r.FormValue("placelong"))
1666	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1667	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1668		p := new(Place)
1669		p.Name = placename
1670		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1671		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1672		p.Url = placeurl
1673		honk.Place = p
1674	}
1675	timestart := strings.TrimSpace(r.FormValue("timestart"))
1676	if timestart != "" {
1677		t := new(Time)
1678		now := time.Now().Local()
1679		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1680			start, err := time.ParseInLocation(layout, timestart, now.Location())
1681			if err == nil {
1682				if start.Year() == 0 {
1683					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1684				}
1685				t.StartTime = start
1686				break
1687			}
1688		}
1689		timeend := r.FormValue("timeend")
1690		dur := parseDuration(timeend)
1691		if dur != 0 {
1692			t.Duration = Duration(dur)
1693		}
1694		if !t.StartTime.IsZero() {
1695			honk.What = "event"
1696			honk.Time = t
1697		}
1698	}
1699
1700	if honk.Public {
1701		honk.Whofore = 2
1702	} else {
1703		honk.Whofore = 3
1704	}
1705
1706	// back to markdown
1707	honk.Noise = noise
1708
1709	if r.FormValue("preview") == "preview" {
1710		honks := []*Honk{honk}
1711		reverbolate(userinfo.UserID, honks)
1712		templinfo := getInfo(r)
1713		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1714		templinfo["Honks"] = honks
1715		templinfo["MapLink"] = getmaplink(userinfo)
1716		templinfo["InReplyTo"] = r.FormValue("rid")
1717		templinfo["Noise"] = r.FormValue("noise")
1718		templinfo["SavedFile"] = donkxid
1719		if tm := honk.Time; tm != nil {
1720			templinfo["ShowTime"] = ";"
1721			templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1722			templinfo["Duration"] = tm.Duration
1723		}
1724		templinfo["IsPreview"] = true
1725		templinfo["UpdateXID"] = updatexid
1726		templinfo["ServerMessage"] = "honk preview"
1727		err := readviews.Execute(w, "honkpage.html", templinfo)
1728		if err != nil {
1729			log.Print(err)
1730		}
1731		return nil
1732	}
1733
1734	if updatexid != "" {
1735		updatehonk(honk)
1736		oldjonks.Clear(honk.XID)
1737	} else {
1738		err := savehonk(honk)
1739		if err != nil {
1740			log.Printf("uh oh")
1741			return nil
1742		}
1743	}
1744
1745	// reload for consistency
1746	honk.Donks = nil
1747	donksforhonks([]*Honk{honk})
1748
1749	go honkworldwide(user, honk)
1750
1751	return honk
1752}
1753
1754func showhonkers(w http.ResponseWriter, r *http.Request) {
1755	userinfo := login.GetUserInfo(r)
1756	templinfo := getInfo(r)
1757	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1758	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1759	err := readviews.Execute(w, "honkers.html", templinfo)
1760	if err != nil {
1761		log.Print(err)
1762	}
1763}
1764
1765var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
1766	honkers := gethonkers(userid)
1767	var combos []string
1768	for _, h := range honkers {
1769		combos = append(combos, h.Combos...)
1770	}
1771	for i, c := range combos {
1772		if c == "-" {
1773			combos[i] = ""
1774		}
1775	}
1776	combos = oneofakind(combos)
1777	sort.Strings(combos)
1778	return combos, true
1779}, Invalidator: &honkerinvalidator})
1780
1781func showcombos(w http.ResponseWriter, r *http.Request) {
1782	userinfo := login.GetUserInfo(r)
1783	var combos []string
1784	combocache.Get(userinfo.UserID, &combos)
1785	templinfo := getInfo(r)
1786	err := readviews.Execute(w, "combos.html", templinfo)
1787	if err != nil {
1788		log.Print(err)
1789	}
1790}
1791
1792func submithonker(w http.ResponseWriter, r *http.Request) {
1793	u := login.GetUserInfo(r)
1794	name := strings.TrimSpace(r.FormValue("name"))
1795	url := strings.TrimSpace(r.FormValue("url"))
1796	peep := r.FormValue("peep")
1797	combos := strings.TrimSpace(r.FormValue("combos"))
1798	combos = " " + combos + " "
1799	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1800
1801	var meta HonkerMeta
1802	meta.Notes = strings.TrimSpace(r.FormValue("notes"))
1803	mj, _ := jsonify(&meta)
1804
1805	defer honkerinvalidator.Clear(u.UserID)
1806
1807	if honkerid > 0 {
1808		goodbye := r.FormValue("goodbye")
1809		if goodbye == "F" {
1810			db := opendatabase()
1811			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1812				honkerid, u.UserID)
1813			err := row.Scan(&url)
1814			if err != nil {
1815				log.Printf("can't get honker xid: %s", err)
1816				return
1817			}
1818			log.Printf("unsubscribing from %s", url)
1819			user, _ := butwhatabout(u.Username)
1820			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, name, "sub")
1821			if err != nil {
1822				log.Printf("error updating honker: %s", err)
1823				return
1824			}
1825			go itakeitallback(user, url)
1826
1827			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1828			return
1829		}
1830		if goodbye == "X" {
1831			var owner string
1832			db := opendatabase()
1833			row := db.QueryRow("select xid, owner from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub', 'sub')",
1834				honkerid, u.UserID)
1835			err := row.Scan(&url, &owner)
1836			if err != nil {
1837				log.Printf("can't get honker xid: %s", err)
1838				return
1839			}
1840			log.Printf("resubscribing to %s", url)
1841			user, _ := butwhatabout(u.Username)
1842			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "unsub")
1843			if err == nil {
1844				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "peep")
1845			}
1846			if err != nil {
1847				log.Printf("error updating honker: %s", err)
1848				return
1849			}
1850			go subsub(user, url, owner)
1851
1852			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1853			return
1854		}
1855		_, err := stmtUpdateHonker.Exec(name, combos, mj, honkerid, u.UserID)
1856		if err != nil {
1857			log.Printf("update honker err: %s", err)
1858			return
1859		}
1860		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1861		return
1862	}
1863
1864	if url == "" {
1865		http.Error(w, "subscribing to nothing?", http.StatusInternalServerError)
1866		return
1867	}
1868
1869	flavor := "presub"
1870	if peep == "peep" {
1871		flavor = "peep"
1872	}
1873
1874	if url[0] == '#' {
1875		flavor = "peep"
1876		if name == "" {
1877			name = url
1878		}
1879		_, err := stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, url, mj)
1880		if err != nil {
1881			log.Print(err)
1882			return
1883		}
1884		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1885		return
1886	}
1887
1888	info, err := investigate(url)
1889	if err != nil {
1890		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1891		log.Printf("failed to investigate honker: %s", err)
1892		return
1893	}
1894	url = info.XID
1895
1896	var x string
1897	db := opendatabase()
1898	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1899	err = row.Scan(&x)
1900	if err != sql.ErrNoRows {
1901		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1902		if err != nil {
1903			log.Printf("honker scan err: %s", err)
1904		}
1905		return
1906	}
1907
1908	if name == "" {
1909		name = info.Name
1910	}
1911	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, info.Owner, mj)
1912	if err != nil {
1913		log.Print(err)
1914		return
1915	}
1916	if flavor == "presub" {
1917		user, _ := butwhatabout(u.Username)
1918		go subsub(user, url, info.Owner)
1919	}
1920	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1921}
1922
1923func hfcspage(w http.ResponseWriter, r *http.Request) {
1924	userinfo := login.GetUserInfo(r)
1925
1926	filters := getfilters(userinfo.UserID, filtAny)
1927
1928	templinfo := getInfo(r)
1929	templinfo["Filters"] = filters
1930	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1931	err := readviews.Execute(w, "hfcs.html", templinfo)
1932	if err != nil {
1933		log.Print(err)
1934	}
1935}
1936
1937func savehfcs(w http.ResponseWriter, r *http.Request) {
1938	userinfo := login.GetUserInfo(r)
1939	itsok := r.FormValue("itsok")
1940	if itsok == "iforgiveyou" {
1941		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1942		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1943		if err != nil {
1944			log.Printf("error deleting filter: %s", err)
1945		}
1946		filtInvalidator.Clear(userinfo.UserID)
1947		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1948		return
1949	}
1950
1951	filt := new(Filter)
1952	filt.Name = strings.TrimSpace(r.FormValue("name"))
1953	filt.Date = time.Now().UTC()
1954	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
1955	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1956	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
1957	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1958	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
1959	filt.Reject = r.FormValue("doreject") == "yes"
1960	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1961	filt.Hide = r.FormValue("dohide") == "yes"
1962	filt.Collapse = r.FormValue("docollapse") == "yes"
1963	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
1964	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
1965	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
1966		filt.Expiration = time.Now().UTC().Add(dur)
1967	}
1968	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
1969
1970	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
1971		log.Printf("blank filter")
1972		http.Error(w, "can't save a blank filter", http.StatusInternalServerError)
1973		return
1974	}
1975
1976	j, err := jsonify(filt)
1977	if err == nil {
1978		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1979	}
1980	if err != nil {
1981		log.Printf("error saving filter: %s", err)
1982	}
1983
1984	filtInvalidator.Clear(userinfo.UserID)
1985	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1986}
1987
1988func accountpage(w http.ResponseWriter, r *http.Request) {
1989	u := login.GetUserInfo(r)
1990	user, _ := butwhatabout(u.Username)
1991	templinfo := getInfo(r)
1992	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1993	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1994	templinfo["User"] = user
1995	about := user.About
1996	if ava := user.Options.Avatar; ava != "" {
1997		about += "\n\navatar: " + ava[strings.LastIndexByte(ava, '/')+1:]
1998	}
1999	templinfo["WhatAbout"] = about
2000	err := readviews.Execute(w, "account.html", templinfo)
2001	if err != nil {
2002		log.Print(err)
2003	}
2004}
2005
2006func dochpass(w http.ResponseWriter, r *http.Request) {
2007	err := login.ChangePassword(w, r)
2008	if err != nil {
2009		log.Printf("error changing password: %s", err)
2010	}
2011	http.Redirect(w, r, "/account", http.StatusSeeOther)
2012}
2013
2014func fingerlicker(w http.ResponseWriter, r *http.Request) {
2015	orig := r.FormValue("resource")
2016
2017	log.Printf("finger lick: %s", orig)
2018
2019	if strings.HasPrefix(orig, "acct:") {
2020		orig = orig[5:]
2021	}
2022
2023	name := orig
2024	idx := strings.LastIndexByte(name, '/')
2025	if idx != -1 {
2026		name = name[idx+1:]
2027		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
2028			log.Printf("foreign request rejected")
2029			name = ""
2030		}
2031	} else {
2032		idx = strings.IndexByte(name, '@')
2033		if idx != -1 {
2034			name = name[:idx]
2035			if !(name+"@"+serverName == orig || name+"@"+masqName == orig) {
2036				log.Printf("foreign request rejected")
2037				name = ""
2038			}
2039		}
2040	}
2041	user, err := butwhatabout(name)
2042	if err != nil {
2043		http.NotFound(w, r)
2044		return
2045	}
2046	if stealthmode(user.ID, r) {
2047		http.NotFound(w, r)
2048		return
2049	}
2050
2051	j := junk.New()
2052	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, masqName)
2053	j["aliases"] = []string{user.URL}
2054	l := junk.New()
2055	l["rel"] = "self"
2056	l["type"] = `application/activity+json`
2057	l["href"] = user.URL
2058	j["links"] = []junk.Junk{l}
2059
2060	w.Header().Set("Content-Type", "application/jrd+json")
2061	j.Write(w)
2062}
2063
2064func somedays() string {
2065	secs := 432000 + notrand.Int63n(432000)
2066	return fmt.Sprintf("%d", secs)
2067}
2068
2069func avatate(w http.ResponseWriter, r *http.Request) {
2070	if debugMode {
2071		loadAvatarColors()
2072	}
2073	n := r.FormValue("a")
2074	a := genAvatar(n)
2075	w.Header().Set("Cache-Control", "max-age="+somedays())
2076	w.Write(a)
2077}
2078
2079func serveasset(w http.ResponseWriter, r *http.Request) {
2080	if !debugMode {
2081		w.Header().Set("Cache-Control", "max-age=7776000")
2082	}
2083	dir := viewDir
2084	if r.URL.Path == "/local.css" {
2085		dir = dataDir
2086	}
2087	http.ServeFile(w, r, dir+"/views"+r.URL.Path)
2088}
2089func servehelp(w http.ResponseWriter, r *http.Request) {
2090	name := mux.Vars(r)["name"]
2091	if !debugMode {
2092		w.Header().Set("Cache-Control", "max-age=3600")
2093	}
2094	http.ServeFile(w, r, viewDir+"/docs/"+name)
2095}
2096func servehtml(w http.ResponseWriter, r *http.Request) {
2097	u := login.GetUserInfo(r)
2098	templinfo := getInfo(r)
2099	templinfo["AboutMsg"] = aboutMsg
2100	templinfo["LoginMsg"] = loginMsg
2101	templinfo["HonkVersion"] = softwareVersion
2102	if r.URL.Path == "/about" {
2103		templinfo["Sensors"] = getSensors()
2104	}
2105	if u == nil && !debugMode {
2106		w.Header().Set("Cache-Control", "max-age=60")
2107	}
2108	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
2109	if err != nil {
2110		log.Print(err)
2111	}
2112}
2113func serveemu(w http.ResponseWriter, r *http.Request) {
2114	emu := mux.Vars(r)["emu"]
2115
2116	w.Header().Set("Cache-Control", "max-age="+somedays())
2117	http.ServeFile(w, r, dataDir+"/emus/"+emu)
2118}
2119func servememe(w http.ResponseWriter, r *http.Request) {
2120	meme := mux.Vars(r)["meme"]
2121
2122	w.Header().Set("Cache-Control", "max-age="+somedays())
2123	http.ServeFile(w, r, dataDir+"/memes/"+meme)
2124}
2125
2126func servefile(w http.ResponseWriter, r *http.Request) {
2127	xid := mux.Vars(r)["xid"]
2128	var media string
2129	var data []byte
2130	row := stmtGetFileData.QueryRow(xid)
2131	err := row.Scan(&media, &data)
2132	if err != nil {
2133		log.Printf("error loading file: %s", err)
2134		http.NotFound(w, r)
2135		return
2136	}
2137	w.Header().Set("Content-Type", media)
2138	w.Header().Set("X-Content-Type-Options", "nosniff")
2139	w.Header().Set("Cache-Control", "max-age="+somedays())
2140	w.Write(data)
2141}
2142
2143func nomoroboto(w http.ResponseWriter, r *http.Request) {
2144	io.WriteString(w, "User-agent: *\n")
2145	io.WriteString(w, "Disallow: /a\n")
2146	io.WriteString(w, "Disallow: /d/\n")
2147	io.WriteString(w, "Disallow: /meme/\n")
2148	io.WriteString(w, "Disallow: /o\n")
2149	io.WriteString(w, "Disallow: /o/\n")
2150	for _, u := range allusers() {
2151		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
2152	}
2153}
2154
2155func webhydra(w http.ResponseWriter, r *http.Request) {
2156	u := login.GetUserInfo(r)
2157	userid := u.UserID
2158	templinfo := getInfo(r)
2159	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
2160	page := r.FormValue("page")
2161
2162	wanted, _ := strconv.ParseInt(r.FormValue("tophid"), 10, 0)
2163
2164	var honks []*Honk
2165	switch page {
2166	case "atme":
2167		honks = gethonksforme(userid, wanted)
2168		honks = osmosis(honks, userid, false)
2169		templinfo["ServerMessage"] = "at me!"
2170	case "home":
2171		honks = gethonksforuser(userid, wanted)
2172		honks = osmosis(honks, userid, true)
2173		templinfo["ServerMessage"] = serverMsg
2174	case "first":
2175		honks = gethonksforuserfirstclass(userid, wanted)
2176		honks = osmosis(honks, userid, true)
2177		templinfo["ServerMessage"] = "first class only"
2178	case "saved":
2179		honks = getsavedhonks(userid, wanted)
2180		templinfo["PageName"] = "saved"
2181		templinfo["ServerMessage"] = "saved honks"
2182	case "combo":
2183		c := r.FormValue("c")
2184		honks = gethonksbycombo(userid, c, wanted)
2185		honks = osmosis(honks, userid, false)
2186		templinfo["ServerMessage"] = "honks by combo: " + c
2187	case "convoy":
2188		c := r.FormValue("c")
2189		honks = gethonksbyconvoy(userid, c, wanted)
2190		honks = osmosis(honks, userid, false)
2191		templinfo["ServerMessage"] = "honks in convoy: " + c
2192	case "honker":
2193		xid := r.FormValue("xid")
2194		honks = gethonksbyxonker(userid, xid, wanted)
2195		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
2196		templinfo["ServerMessage"] = msg
2197	default:
2198		http.NotFound(w, r)
2199	}
2200	if len(honks) > 0 {
2201		templinfo["TopHID"] = honks[0].ID
2202	} else {
2203		templinfo["TopHID"] = wanted
2204	}
2205	reverbolate(userid, honks)
2206	templinfo["Honks"] = honks
2207	templinfo["MapLink"] = getmaplink(u)
2208	templinfo["User"], _ = butwhatabout(u.Username)
2209	w.Header().Set("Content-Type", "text/html; charset=utf-8")
2210	err := readviews.Execute(w, "honkfrags.html", templinfo)
2211	if err != nil {
2212		log.Printf("frag error: %s", err)
2213	}
2214}
2215
2216var honkline = make(chan bool)
2217
2218func honkhonkline() {
2219	for {
2220		select {
2221		case honkline <- true:
2222		default:
2223			return
2224		}
2225	}
2226}
2227
2228func apihandler(w http.ResponseWriter, r *http.Request) {
2229	u := login.GetUserInfo(r)
2230	userid := u.UserID
2231	user, _ := butwhatabout(u.Username)
2232	action := r.FormValue("action")
2233	wait, _ := strconv.ParseInt(r.FormValue("wait"), 10, 0)
2234	log.Printf("api request '%s' on behalf of %s", action, u.Username)
2235	switch action {
2236	case "honk":
2237		h := submithonk(w, r)
2238		if h == nil {
2239			return
2240		}
2241		w.Write([]byte(h.XID))
2242	case "donk":
2243		d, err := submitdonk(w, r)
2244		if err != nil {
2245			if err == http.ErrMissingFile {
2246				http.Error(w, "missing donk", http.StatusBadRequest)
2247			}
2248			return
2249		}
2250		w.Write([]byte(d.XID))
2251	case "zonkit":
2252		zonkit(w, r)
2253	case "gethonks":
2254		var honks []*Honk
2255		wanted, _ := strconv.ParseInt(r.FormValue("after"), 10, 0)
2256		page := r.FormValue("page")
2257		var waitchan <-chan time.Time
2258	requery:
2259		switch page {
2260		case "atme":
2261			honks = gethonksforme(userid, wanted)
2262			honks = osmosis(honks, userid, false)
2263		case "home":
2264			honks = gethonksforuser(userid, wanted)
2265			honks = osmosis(honks, userid, true)
2266		default:
2267			http.Error(w, "unknown page", http.StatusNotFound)
2268			return
2269		}
2270		if len(honks) == 0 && wait > 0 {
2271			if waitchan == nil {
2272				waitchan = time.After(time.Duration(wait) * time.Second)
2273			}
2274			select {
2275			case <-honkline:
2276				goto requery
2277			case <-waitchan:
2278			}
2279		}
2280		reverbolate(userid, honks)
2281		j := junk.New()
2282		j["honks"] = honks
2283		j.Write(w)
2284	case "sendactivity":
2285		public := r.FormValue("public") == "1"
2286		rcpts := boxuprcpts(user, r.Form["rcpt"], public)
2287		msg := []byte(r.FormValue("msg"))
2288		for rcpt := range rcpts {
2289			go deliverate(0, userid, rcpt, msg)
2290		}
2291	default:
2292		http.Error(w, "unknown action", http.StatusNotFound)
2293		return
2294	}
2295}
2296
2297var endoftheworld = make(chan bool)
2298var readyalready = make(chan bool)
2299var workinprogress = 0
2300
2301func enditall() {
2302	sig := make(chan os.Signal)
2303	signal.Notify(sig, os.Interrupt)
2304	signal.Notify(sig, syscall.SIGTERM)
2305	<-sig
2306	log.Printf("stopping...")
2307	for i := 0; i < workinprogress; i++ {
2308		endoftheworld <- true
2309	}
2310	log.Printf("waiting...")
2311	for i := 0; i < workinprogress; i++ {
2312		<-readyalready
2313	}
2314	log.Printf("apocalypse")
2315	os.Exit(0)
2316}
2317
2318var preservehooks []func()
2319
2320func serve() {
2321	db := opendatabase()
2322	login.Init(db)
2323
2324	listener, err := openListener()
2325	if err != nil {
2326		log.Fatal(err)
2327	}
2328	startBackendServer()
2329	go enditall()
2330	go redeliverator()
2331	go tracker()
2332
2333	getconfig("debug", &debugMode)
2334	readviews = templates.Load(debugMode,
2335		viewDir+"/views/honkpage.html",
2336		viewDir+"/views/honkfrags.html",
2337		viewDir+"/views/honkers.html",
2338		viewDir+"/views/hfcs.html",
2339		viewDir+"/views/combos.html",
2340		viewDir+"/views/honkform.html",
2341		viewDir+"/views/honk.html",
2342		viewDir+"/views/account.html",
2343		viewDir+"/views/about.html",
2344		viewDir+"/views/funzone.html",
2345		viewDir+"/views/login.html",
2346		viewDir+"/views/xzone.html",
2347		viewDir+"/views/msg.html",
2348		viewDir+"/views/header.html",
2349		viewDir+"/views/onts.html",
2350		viewDir+"/views/honkpage.js",
2351	)
2352	if !debugMode {
2353		assets := []string{viewDir + "/views/style.css", dataDir + "/views/local.css", viewDir + "/views/honkpage.js"}
2354		for _, s := range assets {
2355			savedassetparams[s] = getassetparam(s)
2356		}
2357		loadAvatarColors()
2358	}
2359
2360	for _, h := range preservehooks {
2361		h()
2362	}
2363
2364	mux := mux.NewRouter()
2365	mux.Use(login.Checker)
2366
2367	mux.Handle("/api", login.TokenRequired(http.HandlerFunc(apihandler)))
2368
2369	posters := mux.Methods("POST").Subrouter()
2370	getters := mux.Methods("GET").Subrouter()
2371
2372	getters.HandleFunc("/", homepage)
2373	getters.HandleFunc("/home", homepage)
2374	getters.HandleFunc("/front", homepage)
2375	getters.HandleFunc("/events", homepage)
2376	getters.HandleFunc("/robots.txt", nomoroboto)
2377	getters.HandleFunc("/rss", showrss)
2378	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
2379	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showonehonk)
2380	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
2381	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
2382	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
2383	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
2384	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
2385	getters.HandleFunc("/a", avatate)
2386	getters.HandleFunc("/o", thelistingoftheontologies)
2387	getters.HandleFunc("/o/{name:.+}", showontology)
2388	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
2389	getters.HandleFunc("/emu/{emu:[^.]*[^/]+}", serveemu)
2390	getters.HandleFunc("/meme/{meme:[^.]*[^/]+}", servememe)
2391	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
2392
2393	getters.HandleFunc("/server", serveractor)
2394	posters.HandleFunc("/server/inbox", serverinbox)
2395	posters.HandleFunc("/inbox", serverinbox)
2396
2397	getters.HandleFunc("/style.css", serveasset)
2398	getters.HandleFunc("/local.css", serveasset)
2399	getters.HandleFunc("/honkpage.js", serveasset)
2400	getters.HandleFunc("/about", servehtml)
2401	getters.HandleFunc("/login", servehtml)
2402	posters.HandleFunc("/dologin", login.LoginFunc)
2403	getters.HandleFunc("/logout", login.LogoutFunc)
2404	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
2405
2406	loggedin := mux.NewRoute().Subrouter()
2407	loggedin.Use(login.Required)
2408	loggedin.HandleFunc("/first", homepage)
2409	loggedin.HandleFunc("/saved", homepage)
2410	loggedin.HandleFunc("/account", accountpage)
2411	loggedin.HandleFunc("/funzone", showfunzone)
2412	loggedin.HandleFunc("/chpass", dochpass)
2413	loggedin.HandleFunc("/atme", homepage)
2414	loggedin.HandleFunc("/hfcs", hfcspage)
2415	loggedin.HandleFunc("/xzone", xzone)
2416	loggedin.HandleFunc("/newhonk", newhonkpage)
2417	loggedin.HandleFunc("/edit", edithonkpage)
2418	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitwebhonk)))
2419	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
2420	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
2421	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
2422	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
2423	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
2424	loggedin.HandleFunc("/honkers", showhonkers)
2425	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
2426	loggedin.HandleFunc("/h", showhonker)
2427	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
2428	loggedin.HandleFunc("/c", showcombos)
2429	loggedin.HandleFunc("/t", showconvoy)
2430	loggedin.HandleFunc("/q", showsearch)
2431	loggedin.HandleFunc("/hydra", webhydra)
2432	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
2433
2434	err = http.Serve(listener, mux)
2435	if err != nil {
2436		log.Fatal(err)
2437	}
2438}