all repos — honk @ 144507ac78b01facf19b5cd74eae81fce9150d81

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 submitbonk(w http.ResponseWriter, r *http.Request) {
1167	xid := r.FormValue("xid")
1168	userinfo := login.GetUserInfo(r)
1169	user, _ := butwhatabout(userinfo.Username)
1170
1171	log.Printf("bonking %s", xid)
1172
1173	xonk := getxonk(userinfo.UserID, xid)
1174	if xonk == nil {
1175		return
1176	}
1177	if !xonk.Public {
1178		return
1179	}
1180	if xonk.IsBonked() {
1181		return
1182	}
1183	donksforhonks([]*Honk{xonk})
1184
1185	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
1186	if err != nil {
1187		log.Printf("error acking bonk: %s", err)
1188	}
1189
1190	oonker := xonk.Oonker
1191	if oonker == "" {
1192		oonker = xonk.Honker
1193	}
1194	dt := time.Now().UTC()
1195	bonk := &Honk{
1196		UserID:   userinfo.UserID,
1197		Username: userinfo.Username,
1198		What:     "bonk",
1199		Honker:   user.URL,
1200		Oonker:   oonker,
1201		XID:      xonk.XID,
1202		RID:      xonk.RID,
1203		Noise:    xonk.Noise,
1204		Precis:   xonk.Precis,
1205		URL:      xonk.URL,
1206		Date:     dt,
1207		Donks:    xonk.Donks,
1208		Whofore:  2,
1209		Convoy:   xonk.Convoy,
1210		Audience: []string{thewholeworld, oonker},
1211		Public:   true,
1212		Format:   "html",
1213		Place:    xonk.Place,
1214		Onts:     xonk.Onts,
1215		Time:     xonk.Time,
1216	}
1217
1218	err = savehonk(bonk)
1219	if err != nil {
1220		log.Printf("uh oh")
1221		return
1222	}
1223
1224	go honkworldwide(user, bonk)
1225
1226	if r.FormValue("js") != "1" {
1227		templinfo := getInfo(r)
1228		templinfo["ServerMessage"] = "Bonked!"
1229		err = readviews.Execute(w, "msg.html", templinfo)
1230		if err != nil {
1231			log.Print(err)
1232		}
1233	}
1234}
1235
1236func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string) {
1237	zonk := &Honk{
1238		What:     what,
1239		XID:      xonk.XID,
1240		Date:     time.Now().UTC(),
1241		Audience: oneofakind(xonk.Audience),
1242	}
1243	zonk.Public = loudandproud(zonk.Audience)
1244
1245	log.Printf("announcing %sed honk: %s", what, xonk.XID)
1246	go honkworldwide(user, zonk)
1247}
1248
1249func zonkit(w http.ResponseWriter, r *http.Request) {
1250	wherefore := r.FormValue("wherefore")
1251	what := r.FormValue("what")
1252	userinfo := login.GetUserInfo(r)
1253	user, _ := butwhatabout(userinfo.Username)
1254
1255	if wherefore == "save" {
1256		xonk := getxonk(userinfo.UserID, what)
1257		if xonk != nil {
1258			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
1259			if err != nil {
1260				log.Printf("error saving: %s", err)
1261			}
1262		}
1263		return
1264	}
1265
1266	if wherefore == "unsave" {
1267		xonk := getxonk(userinfo.UserID, what)
1268		if xonk != nil {
1269			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
1270			if err != nil {
1271				log.Printf("error unsaving: %s", err)
1272			}
1273		}
1274		return
1275	}
1276
1277	if wherefore == "react" {
1278		if user.Options.Reaction == "none" {
1279			return
1280		}
1281		xonk := getxonk(userinfo.UserID, what)
1282		if xonk != nil {
1283			_, err := stmtUpdateFlags.Exec(flagIsReacted, xonk.ID)
1284			if err != nil {
1285				log.Printf("error saving: %s", err)
1286			}
1287			sendzonkofsorts(xonk, user, "react")
1288		}
1289		return
1290	}
1291
1292	// my hammer is too big, oh well
1293	defer oldjonks.Flush()
1294
1295	if wherefore == "ack" {
1296		xonk := getxonk(userinfo.UserID, what)
1297		if xonk != nil && !xonk.IsAcked() {
1298			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
1299			if err != nil {
1300				log.Printf("error acking: %s", err)
1301			}
1302			sendzonkofsorts(xonk, user, "ack")
1303		}
1304		return
1305	}
1306
1307	if wherefore == "deack" {
1308		xonk := getxonk(userinfo.UserID, what)
1309		if xonk != nil && xonk.IsAcked() {
1310			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
1311			if err != nil {
1312				log.Printf("error deacking: %s", err)
1313			}
1314			sendzonkofsorts(xonk, user, "deack")
1315		}
1316		return
1317	}
1318
1319	if wherefore == "unbonk" {
1320		xonk := getbonk(userinfo.UserID, what)
1321		if xonk != nil {
1322			deletehonk(xonk.ID)
1323			xonk = getxonk(userinfo.UserID, what)
1324			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
1325			if err != nil {
1326				log.Printf("error unbonking: %s", err)
1327			}
1328			sendzonkofsorts(xonk, user, "unbonk")
1329		}
1330		return
1331	}
1332
1333	if wherefore == "untag" {
1334		xonk := getxonk(userinfo.UserID, what)
1335		if xonk != nil {
1336			_, err := stmtUpdateFlags.Exec(flagIsUntagged, xonk.ID)
1337			if err != nil {
1338				log.Printf("error untagging: %s", err)
1339			}
1340		}
1341		var badparents map[string]bool
1342		untagged.GetAndLock(userinfo.UserID, &badparents)
1343		badparents[what] = true
1344		untagged.Unlock()
1345		return
1346	}
1347
1348	log.Printf("zonking %s %s", wherefore, what)
1349	if wherefore == "zonk" {
1350		xonk := getxonk(userinfo.UserID, what)
1351		if xonk != nil {
1352			deletehonk(xonk.ID)
1353			if xonk.Whofore == 2 || xonk.Whofore == 3 {
1354				sendzonkofsorts(xonk, user, "zonk")
1355			}
1356		}
1357	}
1358	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
1359	if err != nil {
1360		log.Printf("error saving zonker: %s", err)
1361		return
1362	}
1363}
1364
1365func edithonkpage(w http.ResponseWriter, r *http.Request) {
1366	u := login.GetUserInfo(r)
1367	user, _ := butwhatabout(u.Username)
1368	xid := r.FormValue("xid")
1369	honk := getxonk(u.UserID, xid)
1370	if !canedithonk(user, honk) {
1371		http.Error(w, "no editing that please", http.StatusInternalServerError)
1372		return
1373	}
1374
1375	noise := honk.Noise
1376
1377	honks := []*Honk{honk}
1378	donksforhonks(honks)
1379	reverbolate(u.UserID, honks)
1380	templinfo := getInfo(r)
1381	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1382	templinfo["Honks"] = honks
1383	templinfo["MapLink"] = getmaplink(u)
1384	templinfo["Noise"] = noise
1385	templinfo["SavedPlace"] = honk.Place
1386	if tm := honk.Time; tm != nil {
1387		templinfo["ShowTime"] = ";"
1388		templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1389		templinfo["Duration"] = tm.Duration
1390	}
1391	templinfo["ServerMessage"] = "honk edit 2"
1392	templinfo["IsPreview"] = true
1393	templinfo["UpdateXID"] = honk.XID
1394	if len(honk.Donks) > 0 {
1395		templinfo["SavedFile"] = honk.Donks[0].XID
1396	}
1397	err := readviews.Execute(w, "honkpage.html", templinfo)
1398	if err != nil {
1399		log.Print(err)
1400	}
1401}
1402
1403func newhonkpage(w http.ResponseWriter, r *http.Request) {
1404	u := login.GetUserInfo(r)
1405	rid := r.FormValue("rid")
1406	noise := ""
1407
1408	xonk := getxonk(u.UserID, rid)
1409	if xonk != nil {
1410		_, replto := handles(xonk.Honker)
1411		if replto != "" {
1412			noise = "@" + replto + " "
1413		}
1414	}
1415
1416	templinfo := getInfo(r)
1417	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1418	templinfo["InReplyTo"] = rid
1419	templinfo["Noise"] = noise
1420	templinfo["ServerMessage"] = "compose honk"
1421	templinfo["IsPreview"] = true
1422	err := readviews.Execute(w, "honkpage.html", templinfo)
1423	if err != nil {
1424		log.Print(err)
1425	}
1426}
1427
1428func canedithonk(user *WhatAbout, honk *Honk) bool {
1429	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1430		return false
1431	}
1432	return true
1433}
1434
1435func submitwebhonk(w http.ResponseWriter, r *http.Request) {
1436	submithonk(w, r, false)
1437}
1438
1439// what a hot mess this function is
1440func submithonk(w http.ResponseWriter, r *http.Request, isAPI bool) {
1441	rid := r.FormValue("rid")
1442	noise := r.FormValue("noise")
1443	format := r.FormValue("format")
1444	if format == "" {
1445		format = "markdown"
1446	}
1447	if !(format == "markdown" || format == "html") {
1448		http.Error(w, "unknown format", 500)
1449		return
1450	}
1451
1452	userinfo := login.GetUserInfo(r)
1453	user, _ := butwhatabout(userinfo.Username)
1454
1455	dt := time.Now().UTC()
1456	updatexid := r.FormValue("updatexid")
1457	var honk *Honk
1458	if updatexid != "" {
1459		honk = getxonk(userinfo.UserID, updatexid)
1460		if !canedithonk(user, honk) {
1461			http.Error(w, "no editing that please", http.StatusInternalServerError)
1462			return
1463		}
1464		honk.Date = dt
1465		honk.What = "update"
1466		honk.Format = format
1467	} else {
1468		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1469		what := "honk"
1470		if rid != "" {
1471			what = "tonk"
1472		}
1473		honk = &Honk{
1474			UserID:   userinfo.UserID,
1475			Username: userinfo.Username,
1476			What:     what,
1477			Honker:   user.URL,
1478			XID:      xid,
1479			Date:     dt,
1480			Format:   format,
1481		}
1482	}
1483
1484	noise = strings.Replace(noise, "\r", "", -1)
1485	noise = quickrename(noise, userinfo.UserID)
1486	noise = hooterize(noise)
1487	honk.Mentions = bunchofgrapes(noise)
1488	honk.Noise = noise
1489	translate(honk)
1490
1491	var convoy string
1492	if rid != "" {
1493		xonk := getxonk(userinfo.UserID, rid)
1494		if xonk == nil {
1495			http.Error(w, "replyto disappeared", http.StatusNotFound)
1496			return
1497		}
1498		if xonk.Public {
1499			honk.Audience = append(honk.Audience, xonk.Audience...)
1500		}
1501		convoy = xonk.Convoy
1502		for i, a := range honk.Audience {
1503			if a == thewholeworld {
1504				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1505				break
1506			}
1507		}
1508		honk.RID = rid
1509		if xonk.Precis != "" && honk.Precis == "" {
1510			honk.Precis = xonk.Precis
1511			if !(strings.HasPrefix(honk.Precis, "DZ:") || strings.HasPrefix(honk.Precis, "re: re: re: ")) {
1512				honk.Precis = "re: " + honk.Precis
1513			}
1514		}
1515	} else {
1516		honk.Audience = []string{thewholeworld}
1517	}
1518	if honk.Noise != "" && honk.Noise[0] == '@' {
1519		honk.Audience = append(grapevine(bunchofgrapes(honk.Noise)), honk.Audience...)
1520	} else {
1521		honk.Audience = append(honk.Audience, grapevine(bunchofgrapes(honk.Noise))...)
1522	}
1523
1524	if convoy == "" {
1525		convoy = "data:,electrichonkytonk-" + xfiltrate()
1526	}
1527	butnottooloud(honk.Audience)
1528	honk.Audience = oneofakind(honk.Audience)
1529	if len(honk.Audience) == 0 {
1530		log.Printf("honk to nowhere")
1531		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1532		return
1533	}
1534	honk.Public = loudandproud(honk.Audience)
1535	honk.Convoy = convoy
1536
1537	donkxid := r.FormValue("donkxid")
1538	if donkxid == "" {
1539		file, filehdr, err := r.FormFile("donk")
1540		if err == nil {
1541			var buf bytes.Buffer
1542			io.Copy(&buf, file)
1543			file.Close()
1544			data := buf.Bytes()
1545			xid := xfiltrate()
1546			var media, name string
1547			img, err := shrinkit(data)
1548			if err == nil {
1549				data = img.Data
1550				format := img.Format
1551				media = "image/" + format
1552				if format == "jpeg" {
1553					format = "jpg"
1554				}
1555				name = xid + "." + format
1556				xid = name
1557			} else {
1558				ct := http.DetectContentType(data)
1559				switch ct {
1560				case "application/pdf":
1561					maxsize := 1000000
1562					if len(data) > maxsize {
1563						log.Printf("bad image: %s too much pdf: %d", err, len(data))
1564						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1565						return
1566					}
1567					media = ct
1568					xid += ".pdf"
1569					name = filehdr.Filename
1570					if name == "" {
1571						name = xid
1572					}
1573				default:
1574					maxsize := 100000
1575					if len(data) > maxsize {
1576						log.Printf("bad image: %s too much text: %d", err, len(data))
1577						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1578						return
1579					}
1580					for i := 0; i < len(data); i++ {
1581						if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1582							log.Printf("bad image: %s not text: %d", err, data[i])
1583							http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1584							return
1585						}
1586					}
1587					media = "text/plain"
1588					xid += ".txt"
1589					name = filehdr.Filename
1590					if name == "" {
1591						name = xid
1592					}
1593				}
1594			}
1595			desc := strings.TrimSpace(r.FormValue("donkdesc"))
1596			if desc == "" {
1597				desc = name
1598			}
1599			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1600			fileid, err := savefile(xid, name, desc, url, media, true, data)
1601			if err != nil {
1602				log.Printf("unable to save image: %s", err)
1603				return
1604			}
1605			d := &Donk{
1606				FileID: fileid,
1607				XID:    xid,
1608				Desc:   desc,
1609				URL:    url,
1610				Local:  true,
1611			}
1612			honk.Donks = append(honk.Donks, d)
1613			donkxid = xid
1614		}
1615	} else {
1616		xid := donkxid
1617		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1618		donk := finddonk(url)
1619		if donk != nil {
1620			honk.Donks = append(honk.Donks, donk)
1621		} else {
1622			log.Printf("can't find file: %s", xid)
1623		}
1624	}
1625	memetize(honk)
1626	imaginate(honk)
1627
1628	placename := strings.TrimSpace(r.FormValue("placename"))
1629	placelat := strings.TrimSpace(r.FormValue("placelat"))
1630	placelong := strings.TrimSpace(r.FormValue("placelong"))
1631	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1632	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1633		p := new(Place)
1634		p.Name = placename
1635		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1636		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1637		p.Url = placeurl
1638		honk.Place = p
1639	}
1640	timestart := strings.TrimSpace(r.FormValue("timestart"))
1641	if timestart != "" {
1642		t := new(Time)
1643		now := time.Now().Local()
1644		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1645			start, err := time.ParseInLocation(layout, timestart, now.Location())
1646			if err == nil {
1647				if start.Year() == 0 {
1648					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1649				}
1650				t.StartTime = start
1651				break
1652			}
1653		}
1654		timeend := r.FormValue("timeend")
1655		dur := parseDuration(timeend)
1656		if dur != 0 {
1657			t.Duration = Duration(dur)
1658		}
1659		if !t.StartTime.IsZero() {
1660			honk.What = "event"
1661			honk.Time = t
1662		}
1663	}
1664
1665	if honk.Public {
1666		honk.Whofore = 2
1667	} else {
1668		honk.Whofore = 3
1669	}
1670
1671	// back to markdown
1672	honk.Noise = noise
1673
1674	if r.FormValue("preview") == "preview" {
1675		honks := []*Honk{honk}
1676		reverbolate(userinfo.UserID, honks)
1677		templinfo := getInfo(r)
1678		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1679		templinfo["Honks"] = honks
1680		templinfo["MapLink"] = getmaplink(userinfo)
1681		templinfo["InReplyTo"] = r.FormValue("rid")
1682		templinfo["Noise"] = r.FormValue("noise")
1683		templinfo["SavedFile"] = donkxid
1684		if tm := honk.Time; tm != nil {
1685			templinfo["ShowTime"] = ";"
1686			templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1687			templinfo["Duration"] = tm.Duration
1688		}
1689		templinfo["IsPreview"] = true
1690		templinfo["UpdateXID"] = updatexid
1691		templinfo["ServerMessage"] = "honk preview"
1692		err := readviews.Execute(w, "honkpage.html", templinfo)
1693		if err != nil {
1694			log.Print(err)
1695		}
1696		return
1697	}
1698
1699	if updatexid != "" {
1700		updatehonk(honk)
1701		oldjonks.Clear(honk.XID)
1702	} else {
1703		err := savehonk(honk)
1704		if err != nil {
1705			log.Printf("uh oh")
1706			return
1707		}
1708	}
1709
1710	// reload for consistency
1711	honk.Donks = nil
1712	donksforhonks([]*Honk{honk})
1713
1714	go honkworldwide(user, honk)
1715
1716	if isAPI {
1717		w.Write([]byte(honk.XID))
1718	} else {
1719		http.Redirect(w, r, honk.XID[len(serverName)+8:], http.StatusSeeOther)
1720	}
1721}
1722
1723func showhonkers(w http.ResponseWriter, r *http.Request) {
1724	userinfo := login.GetUserInfo(r)
1725	templinfo := getInfo(r)
1726	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1727	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1728	err := readviews.Execute(w, "honkers.html", templinfo)
1729	if err != nil {
1730		log.Print(err)
1731	}
1732}
1733
1734var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
1735	honkers := gethonkers(userid)
1736	var combos []string
1737	for _, h := range honkers {
1738		combos = append(combos, h.Combos...)
1739	}
1740	for i, c := range combos {
1741		if c == "-" {
1742			combos[i] = ""
1743		}
1744	}
1745	combos = oneofakind(combos)
1746	sort.Strings(combos)
1747	return combos, true
1748}, Invalidator: &honkerinvalidator})
1749
1750func showcombos(w http.ResponseWriter, r *http.Request) {
1751	userinfo := login.GetUserInfo(r)
1752	var combos []string
1753	combocache.Get(userinfo.UserID, &combos)
1754	templinfo := getInfo(r)
1755	err := readviews.Execute(w, "combos.html", templinfo)
1756	if err != nil {
1757		log.Print(err)
1758	}
1759}
1760
1761func submithonker(w http.ResponseWriter, r *http.Request) {
1762	u := login.GetUserInfo(r)
1763	name := strings.TrimSpace(r.FormValue("name"))
1764	url := strings.TrimSpace(r.FormValue("url"))
1765	peep := r.FormValue("peep")
1766	combos := strings.TrimSpace(r.FormValue("combos"))
1767	combos = " " + combos + " "
1768	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1769
1770	var meta HonkerMeta
1771	meta.Notes = strings.TrimSpace(r.FormValue("notes"))
1772	mj, _ := jsonify(&meta)
1773
1774	defer honkerinvalidator.Clear(u.UserID)
1775
1776	if honkerid > 0 {
1777		goodbye := r.FormValue("goodbye")
1778		if goodbye == "F" {
1779			db := opendatabase()
1780			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1781				honkerid, u.UserID)
1782			err := row.Scan(&url)
1783			if err != nil {
1784				log.Printf("can't get honker xid: %s", err)
1785				return
1786			}
1787			log.Printf("unsubscribing from %s", url)
1788			user, _ := butwhatabout(u.Username)
1789			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, name, "sub")
1790			if err != nil {
1791				log.Printf("error updating honker: %s", err)
1792				return
1793			}
1794			go itakeitallback(user, url)
1795
1796			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1797			return
1798		}
1799		if goodbye == "X" {
1800			var owner string
1801			db := opendatabase()
1802			row := db.QueryRow("select xid, owner from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub', 'sub')",
1803				honkerid, u.UserID)
1804			err := row.Scan(&url, &owner)
1805			if err != nil {
1806				log.Printf("can't get honker xid: %s", err)
1807				return
1808			}
1809			log.Printf("resubscribing to %s", url)
1810			user, _ := butwhatabout(u.Username)
1811			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "unsub")
1812			if err == nil {
1813				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "peep")
1814			}
1815			if err != nil {
1816				log.Printf("error updating honker: %s", err)
1817				return
1818			}
1819			go subsub(user, url, owner)
1820
1821			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1822			return
1823		}
1824		_, err := stmtUpdateHonker.Exec(name, combos, mj, honkerid, u.UserID)
1825		if err != nil {
1826			log.Printf("update honker err: %s", err)
1827			return
1828		}
1829		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1830		return
1831	}
1832
1833	if url == "" {
1834		http.Error(w, "subscribing to nothing?", http.StatusInternalServerError)
1835		return
1836	}
1837
1838	flavor := "presub"
1839	if peep == "peep" {
1840		flavor = "peep"
1841	}
1842
1843	if url[0] == '#' {
1844		flavor = "peep"
1845		if name == "" {
1846			name = url
1847		}
1848		_, err := stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, url, mj)
1849		if err != nil {
1850			log.Print(err)
1851			return
1852		}
1853		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1854		return
1855	}
1856
1857	info, err := investigate(url)
1858	if err != nil {
1859		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1860		log.Printf("failed to investigate honker: %s", err)
1861		return
1862	}
1863	url = info.XID
1864
1865	var x string
1866	db := opendatabase()
1867	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1868	err = row.Scan(&x)
1869	if err != sql.ErrNoRows {
1870		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1871		if err != nil {
1872			log.Printf("honker scan err: %s", err)
1873		}
1874		return
1875	}
1876
1877	if name == "" {
1878		name = info.Name
1879	}
1880	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, info.Owner, mj)
1881	if err != nil {
1882		log.Print(err)
1883		return
1884	}
1885	if flavor == "presub" {
1886		user, _ := butwhatabout(u.Username)
1887		go subsub(user, url, info.Owner)
1888	}
1889	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1890}
1891
1892func hfcspage(w http.ResponseWriter, r *http.Request) {
1893	userinfo := login.GetUserInfo(r)
1894
1895	filters := getfilters(userinfo.UserID, filtAny)
1896
1897	templinfo := getInfo(r)
1898	templinfo["Filters"] = filters
1899	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1900	err := readviews.Execute(w, "hfcs.html", templinfo)
1901	if err != nil {
1902		log.Print(err)
1903	}
1904}
1905
1906func savehfcs(w http.ResponseWriter, r *http.Request) {
1907	userinfo := login.GetUserInfo(r)
1908	itsok := r.FormValue("itsok")
1909	if itsok == "iforgiveyou" {
1910		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1911		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1912		if err != nil {
1913			log.Printf("error deleting filter: %s", err)
1914		}
1915		filtInvalidator.Clear(userinfo.UserID)
1916		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1917		return
1918	}
1919
1920	filt := new(Filter)
1921	filt.Name = strings.TrimSpace(r.FormValue("name"))
1922	filt.Date = time.Now().UTC()
1923	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
1924	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1925	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
1926	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1927	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
1928	filt.Reject = r.FormValue("doreject") == "yes"
1929	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1930	filt.Hide = r.FormValue("dohide") == "yes"
1931	filt.Collapse = r.FormValue("docollapse") == "yes"
1932	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
1933	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
1934	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
1935		filt.Expiration = time.Now().UTC().Add(dur)
1936	}
1937	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
1938
1939	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
1940		log.Printf("blank filter")
1941		http.Error(w, "can't save a blank filter", http.StatusInternalServerError)
1942		return
1943	}
1944
1945	j, err := jsonify(filt)
1946	if err == nil {
1947		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1948	}
1949	if err != nil {
1950		log.Printf("error saving filter: %s", err)
1951	}
1952
1953	filtInvalidator.Clear(userinfo.UserID)
1954	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1955}
1956
1957func accountpage(w http.ResponseWriter, r *http.Request) {
1958	u := login.GetUserInfo(r)
1959	user, _ := butwhatabout(u.Username)
1960	templinfo := getInfo(r)
1961	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1962	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1963	templinfo["User"] = user
1964	about := user.About
1965	if ava := user.Options.Avatar; ava != "" {
1966		about += "\n\navatar: " + ava[strings.LastIndexByte(ava, '/')+1:]
1967	}
1968	templinfo["WhatAbout"] = about
1969	err := readviews.Execute(w, "account.html", templinfo)
1970	if err != nil {
1971		log.Print(err)
1972	}
1973}
1974
1975func dochpass(w http.ResponseWriter, r *http.Request) {
1976	err := login.ChangePassword(w, r)
1977	if err != nil {
1978		log.Printf("error changing password: %s", err)
1979	}
1980	http.Redirect(w, r, "/account", http.StatusSeeOther)
1981}
1982
1983func fingerlicker(w http.ResponseWriter, r *http.Request) {
1984	orig := r.FormValue("resource")
1985
1986	log.Printf("finger lick: %s", orig)
1987
1988	if strings.HasPrefix(orig, "acct:") {
1989		orig = orig[5:]
1990	}
1991
1992	name := orig
1993	idx := strings.LastIndexByte(name, '/')
1994	if idx != -1 {
1995		name = name[idx+1:]
1996		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
1997			log.Printf("foreign request rejected")
1998			name = ""
1999		}
2000	} else {
2001		idx = strings.IndexByte(name, '@')
2002		if idx != -1 {
2003			name = name[:idx]
2004			if !(name+"@"+serverName == orig || name+"@"+masqName == orig) {
2005				log.Printf("foreign request rejected")
2006				name = ""
2007			}
2008		}
2009	}
2010	user, err := butwhatabout(name)
2011	if err != nil {
2012		http.NotFound(w, r)
2013		return
2014	}
2015	if stealthmode(user.ID, r) {
2016		http.NotFound(w, r)
2017		return
2018	}
2019
2020	j := junk.New()
2021	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, masqName)
2022	j["aliases"] = []string{user.URL}
2023	l := junk.New()
2024	l["rel"] = "self"
2025	l["type"] = `application/activity+json`
2026	l["href"] = user.URL
2027	j["links"] = []junk.Junk{l}
2028
2029	w.Header().Set("Content-Type", "application/jrd+json")
2030	j.Write(w)
2031}
2032
2033func somedays() string {
2034	secs := 432000 + notrand.Int63n(432000)
2035	return fmt.Sprintf("%d", secs)
2036}
2037
2038func avatate(w http.ResponseWriter, r *http.Request) {
2039	if debugMode {
2040		loadAvatarColors()
2041	}
2042	n := r.FormValue("a")
2043	a := genAvatar(n)
2044	w.Header().Set("Cache-Control", "max-age="+somedays())
2045	w.Write(a)
2046}
2047
2048func serveasset(w http.ResponseWriter, r *http.Request) {
2049	if !debugMode {
2050		w.Header().Set("Cache-Control", "max-age=7776000")
2051	}
2052	dir := viewDir
2053	if r.URL.Path == "/local.css" {
2054		dir = dataDir
2055	}
2056	http.ServeFile(w, r, dir+"/views"+r.URL.Path)
2057}
2058func servehelp(w http.ResponseWriter, r *http.Request) {
2059	name := mux.Vars(r)["name"]
2060	if !debugMode {
2061		w.Header().Set("Cache-Control", "max-age=3600")
2062	}
2063	http.ServeFile(w, r, viewDir+"/docs/"+name)
2064}
2065func servehtml(w http.ResponseWriter, r *http.Request) {
2066	u := login.GetUserInfo(r)
2067	templinfo := getInfo(r)
2068	templinfo["AboutMsg"] = aboutMsg
2069	templinfo["LoginMsg"] = loginMsg
2070	templinfo["HonkVersion"] = softwareVersion
2071	if r.URL.Path == "/about" {
2072		templinfo["Sensors"] = getSensors()
2073	}
2074	if u == nil && !debugMode {
2075		w.Header().Set("Cache-Control", "max-age=60")
2076	}
2077	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
2078	if err != nil {
2079		log.Print(err)
2080	}
2081}
2082func serveemu(w http.ResponseWriter, r *http.Request) {
2083	emu := mux.Vars(r)["emu"]
2084
2085	w.Header().Set("Cache-Control", "max-age="+somedays())
2086	http.ServeFile(w, r, dataDir+"/emus/"+emu)
2087}
2088func servememe(w http.ResponseWriter, r *http.Request) {
2089	meme := mux.Vars(r)["meme"]
2090
2091	w.Header().Set("Cache-Control", "max-age="+somedays())
2092	http.ServeFile(w, r, dataDir+"/memes/"+meme)
2093}
2094
2095func servefile(w http.ResponseWriter, r *http.Request) {
2096	xid := mux.Vars(r)["xid"]
2097	var media string
2098	var data []byte
2099	row := stmtGetFileData.QueryRow(xid)
2100	err := row.Scan(&media, &data)
2101	if err != nil {
2102		log.Printf("error loading file: %s", err)
2103		http.NotFound(w, r)
2104		return
2105	}
2106	w.Header().Set("Content-Type", media)
2107	w.Header().Set("X-Content-Type-Options", "nosniff")
2108	w.Header().Set("Cache-Control", "max-age="+somedays())
2109	w.Write(data)
2110}
2111
2112func nomoroboto(w http.ResponseWriter, r *http.Request) {
2113	io.WriteString(w, "User-agent: *\n")
2114	io.WriteString(w, "Disallow: /a\n")
2115	io.WriteString(w, "Disallow: /d/\n")
2116	io.WriteString(w, "Disallow: /meme/\n")
2117	io.WriteString(w, "Disallow: /o\n")
2118	io.WriteString(w, "Disallow: /o/\n")
2119	for _, u := range allusers() {
2120		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
2121	}
2122}
2123
2124func webhydra(w http.ResponseWriter, r *http.Request) {
2125	u := login.GetUserInfo(r)
2126	userid := u.UserID
2127	templinfo := getInfo(r)
2128	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
2129	page := r.FormValue("page")
2130
2131	wanted, _ := strconv.ParseInt(r.FormValue("tophid"), 10, 0)
2132
2133	var honks []*Honk
2134	switch page {
2135	case "atme":
2136		honks = gethonksforme(userid, wanted)
2137		honks = osmosis(honks, userid, false)
2138		templinfo["ServerMessage"] = "at me!"
2139	case "home":
2140		honks = gethonksforuser(userid, wanted)
2141		honks = osmosis(honks, userid, true)
2142		templinfo["ServerMessage"] = serverMsg
2143	case "first":
2144		honks = gethonksforuserfirstclass(userid, wanted)
2145		honks = osmosis(honks, userid, true)
2146		templinfo["ServerMessage"] = "first class only"
2147	case "saved":
2148		honks = getsavedhonks(userid, wanted)
2149		templinfo["PageName"] = "saved"
2150		templinfo["ServerMessage"] = "saved honks"
2151	case "combo":
2152		c := r.FormValue("c")
2153		honks = gethonksbycombo(userid, c, wanted)
2154		honks = osmosis(honks, userid, false)
2155		templinfo["ServerMessage"] = "honks by combo: " + c
2156	case "convoy":
2157		c := r.FormValue("c")
2158		honks = gethonksbyconvoy(userid, c, wanted)
2159		honks = osmosis(honks, userid, false)
2160		templinfo["ServerMessage"] = "honks in convoy: " + c
2161	case "honker":
2162		xid := r.FormValue("xid")
2163		honks = gethonksbyxonker(userid, xid, wanted)
2164		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
2165		templinfo["ServerMessage"] = msg
2166	default:
2167		http.NotFound(w, r)
2168	}
2169	if len(honks) > 0 {
2170		templinfo["TopHID"] = honks[0].ID
2171	} else {
2172		templinfo["TopHID"] = wanted
2173	}
2174	reverbolate(userid, honks)
2175	templinfo["Honks"] = honks
2176	templinfo["MapLink"] = getmaplink(u)
2177	w.Header().Set("Content-Type", "text/html; charset=utf-8")
2178	err := readviews.Execute(w, "honkfrags.html", templinfo)
2179	if err != nil {
2180		log.Printf("frag error: %s", err)
2181	}
2182}
2183
2184var honkline = make(chan bool)
2185
2186func honkhonkline() {
2187	for {
2188		select {
2189		case honkline <- true:
2190		default:
2191			return
2192		}
2193	}
2194}
2195
2196func apihandler(w http.ResponseWriter, r *http.Request) {
2197	u := login.GetUserInfo(r)
2198	userid := u.UserID
2199	user, _ := butwhatabout(u.Username)
2200	action := r.FormValue("action")
2201	wait, _ := strconv.ParseInt(r.FormValue("wait"), 10, 0)
2202	log.Printf("api request '%s' on behalf of %s", action, u.Username)
2203	switch action {
2204	case "honk":
2205		submithonk(w, r, true)
2206	case "gethonks":
2207		var honks []*Honk
2208		wanted, _ := strconv.ParseInt(r.FormValue("after"), 10, 0)
2209		page := r.FormValue("page")
2210		var waitchan <-chan time.Time
2211	requery:
2212		switch page {
2213		case "atme":
2214			honks = gethonksforme(userid, wanted)
2215			honks = osmosis(honks, userid, false)
2216		case "home":
2217			honks = gethonksforuser(userid, wanted)
2218			honks = osmosis(honks, userid, true)
2219		default:
2220			http.Error(w, "unknown page", http.StatusNotFound)
2221			return
2222		}
2223		if len(honks) == 0 && wait > 0 {
2224			if waitchan == nil {
2225				waitchan = time.After(time.Duration(wait) * time.Second)
2226			}
2227			select {
2228			case <-honkline:
2229				goto requery
2230			case <-waitchan:
2231			}
2232		}
2233		reverbolate(userid, honks)
2234		j := junk.New()
2235		j["honks"] = honks
2236		j.Write(w)
2237	case "sendactivity":
2238		public := r.FormValue("public") == "1"
2239		rcpts := boxuprcpts(user, r.Form["rcpt"], public)
2240		msg := []byte(r.FormValue("msg"))
2241		for rcpt := range rcpts {
2242			go deliverate(0, userid, rcpt, msg)
2243		}
2244	default:
2245		http.Error(w, "unknown action", http.StatusNotFound)
2246		return
2247	}
2248}
2249
2250var endoftheworld = make(chan bool)
2251var readyalready = make(chan bool)
2252var workinprogress = 0
2253
2254func enditall() {
2255	sig := make(chan os.Signal)
2256	signal.Notify(sig, os.Interrupt)
2257	signal.Notify(sig, syscall.SIGTERM)
2258	<-sig
2259	log.Printf("stopping...")
2260	for i := 0; i < workinprogress; i++ {
2261		endoftheworld <- true
2262	}
2263	log.Printf("waiting...")
2264	for i := 0; i < workinprogress; i++ {
2265		<-readyalready
2266	}
2267	log.Printf("apocalypse")
2268	os.Exit(0)
2269}
2270
2271var preservehooks []func()
2272
2273func serve() {
2274	db := opendatabase()
2275	login.Init(db)
2276
2277	listener, err := openListener()
2278	if err != nil {
2279		log.Fatal(err)
2280	}
2281	startBackendServer()
2282	go enditall()
2283	go redeliverator()
2284	go tracker()
2285
2286	getconfig("debug", &debugMode)
2287	readviews = templates.Load(debugMode,
2288		viewDir+"/views/honkpage.html",
2289		viewDir+"/views/honkfrags.html",
2290		viewDir+"/views/honkers.html",
2291		viewDir+"/views/hfcs.html",
2292		viewDir+"/views/combos.html",
2293		viewDir+"/views/honkform.html",
2294		viewDir+"/views/honk.html",
2295		viewDir+"/views/account.html",
2296		viewDir+"/views/about.html",
2297		viewDir+"/views/funzone.html",
2298		viewDir+"/views/login.html",
2299		viewDir+"/views/xzone.html",
2300		viewDir+"/views/msg.html",
2301		viewDir+"/views/header.html",
2302		viewDir+"/views/onts.html",
2303		viewDir+"/views/honkpage.js",
2304	)
2305	if !debugMode {
2306		assets := []string{viewDir + "/views/style.css", dataDir + "/views/local.css", viewDir + "/views/honkpage.js"}
2307		for _, s := range assets {
2308			savedassetparams[s] = getassetparam(s)
2309		}
2310		loadAvatarColors()
2311	}
2312
2313	for _, h := range preservehooks {
2314		h()
2315	}
2316
2317	mux := mux.NewRouter()
2318	mux.Use(login.Checker)
2319
2320	mux.Handle("/api", login.TokenRequired(http.HandlerFunc(apihandler)))
2321
2322	posters := mux.Methods("POST").Subrouter()
2323	getters := mux.Methods("GET").Subrouter()
2324
2325	getters.HandleFunc("/", homepage)
2326	getters.HandleFunc("/home", homepage)
2327	getters.HandleFunc("/front", homepage)
2328	getters.HandleFunc("/events", homepage)
2329	getters.HandleFunc("/robots.txt", nomoroboto)
2330	getters.HandleFunc("/rss", showrss)
2331	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
2332	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showonehonk)
2333	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
2334	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
2335	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
2336	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
2337	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
2338	getters.HandleFunc("/a", avatate)
2339	getters.HandleFunc("/o", thelistingoftheontologies)
2340	getters.HandleFunc("/o/{name:.+}", showontology)
2341	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
2342	getters.HandleFunc("/emu/{emu:[^.]*[^/]+}", serveemu)
2343	getters.HandleFunc("/meme/{meme:[^.]*[^/]+}", servememe)
2344	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
2345
2346	getters.HandleFunc("/server", serveractor)
2347	posters.HandleFunc("/server/inbox", serverinbox)
2348	posters.HandleFunc("/inbox", serverinbox)
2349
2350	getters.HandleFunc("/style.css", serveasset)
2351	getters.HandleFunc("/local.css", serveasset)
2352	getters.HandleFunc("/honkpage.js", serveasset)
2353	getters.HandleFunc("/about", servehtml)
2354	getters.HandleFunc("/login", servehtml)
2355	posters.HandleFunc("/dologin", login.LoginFunc)
2356	getters.HandleFunc("/logout", login.LogoutFunc)
2357	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
2358
2359	loggedin := mux.NewRoute().Subrouter()
2360	loggedin.Use(login.Required)
2361	loggedin.HandleFunc("/first", homepage)
2362	loggedin.HandleFunc("/saved", homepage)
2363	loggedin.HandleFunc("/account", accountpage)
2364	loggedin.HandleFunc("/funzone", showfunzone)
2365	loggedin.HandleFunc("/chpass", dochpass)
2366	loggedin.HandleFunc("/atme", homepage)
2367	loggedin.HandleFunc("/hfcs", hfcspage)
2368	loggedin.HandleFunc("/xzone", xzone)
2369	loggedin.HandleFunc("/newhonk", newhonkpage)
2370	loggedin.HandleFunc("/edit", edithonkpage)
2371	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitwebhonk)))
2372	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
2373	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
2374	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
2375	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
2376	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
2377	loggedin.HandleFunc("/honkers", showhonkers)
2378	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
2379	loggedin.HandleFunc("/h", showhonker)
2380	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
2381	loggedin.HandleFunc("/c", showcombos)
2382	loggedin.HandleFunc("/t", showconvoy)
2383	loggedin.HandleFunc("/q", showsearch)
2384	loggedin.HandleFunc("/hydra", webhydra)
2385	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
2386
2387	err = http.Serve(listener, mux)
2388	if err != nil {
2389		log.Fatal(err)
2390	}
2391}