all repos — honk @ 560c50589cd44efd7e0f62bfa9e08f3c4aa0af33

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 == "EmojiReaction" && 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		fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 426		j.Write(fd)
 427		io.WriteString(fd, "\n")
 428		fd.Close()
 429
 430	case "Undo":
 431		obj, ok := j.GetMap("object")
 432		if !ok {
 433			log.Printf("unknown undo no object")
 434			return
 435		}
 436		what, _ := obj.GetString("type")
 437		switch what {
 438		case "Follow":
 439			log.Printf("updating honker undo: %s", who)
 440			_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, who, "dub")
 441			if err != nil {
 442				log.Printf("error updating honker: %s", err)
 443				return
 444			}
 445		case "Announce":
 446			xid, _ := obj.GetString("object")
 447			log.Printf("undo announce: %s", xid)
 448		case "Like":
 449		default:
 450			log.Printf("unknown undo: %s", what)
 451		}
 452	default:
 453		go xonksaver(user, j, origin)
 454	}
 455}
 456
 457func serverinbox(w http.ResponseWriter, r *http.Request) {
 458	if stealthmode(serverUID, r) {
 459		http.NotFound(w, r)
 460		return
 461	}
 462	var buf bytes.Buffer
 463	io.Copy(&buf, r.Body)
 464	payload := buf.Bytes()
 465	j, err := junk.FromBytes(payload)
 466	if err != nil {
 467		log.Printf("bad payload: %s", err)
 468		io.WriteString(os.Stdout, "bad payload\n")
 469		os.Stdout.Write(payload)
 470		io.WriteString(os.Stdout, "\n")
 471		return
 472	}
 473	if crappola(j) {
 474		return
 475	}
 476	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 477	if err != nil && keyname != "" {
 478		savingthrow(keyname)
 479		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 480	}
 481	if err != nil {
 482		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 483		if keyname != "" {
 484			log.Printf("bad signature from %s", keyname)
 485			io.WriteString(os.Stdout, "bad payload\n")
 486			os.Stdout.Write(payload)
 487			io.WriteString(os.Stdout, "\n")
 488		}
 489		http.Error(w, "what did you call me?", http.StatusTeapot)
 490		return
 491	}
 492	user := getserveruser()
 493	who, _ := j.GetString("actor")
 494	origin := keymatch(keyname, who)
 495	if origin == "" {
 496		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 497		return
 498	}
 499	if rejectactor(user.ID, who) {
 500		return
 501	}
 502	re_ont := regexp.MustCompile("https://" + serverName + "/o/([[:alnum:]]+)")
 503	what, _ := j.GetString("type")
 504	log.Printf("server got a %s", what)
 505	switch what {
 506	case "Follow":
 507		obj, _ := j.GetString("object")
 508		if obj == user.URL {
 509			log.Printf("can't follow the server!")
 510			return
 511		}
 512		m := re_ont.FindStringSubmatch(obj)
 513		if len(m) != 2 {
 514			log.Printf("not sure how to handle this")
 515			return
 516		}
 517		ont := "#" + m[1]
 518		log.Printf("%s wants to follow %s", who, ont)
 519		var x string
 520		db := opendatabase()
 521		row := db.QueryRow("select xid from honkers where name = ? and xid = ? and userid = ? and flavor in ('dub', 'undub')", ont, who, user.ID)
 522		err = row.Scan(&x)
 523		if err != sql.ErrNoRows {
 524			log.Printf("duplicate follow request: %s", who)
 525			_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, ont, "undub")
 526			if err != nil {
 527				log.Printf("error updating honker: %s", err)
 528			}
 529		} else {
 530			stmtSaveDub.Exec(user.ID, ont, who, "dub")
 531		}
 532		go rubadubdub(user, j)
 533	case "Undo":
 534		obj, ok := j.GetMap("object")
 535		if !ok {
 536			log.Printf("unknown undo no object")
 537			return
 538		}
 539		what, _ := obj.GetString("type")
 540		if what != "Follow" {
 541			log.Printf("unknown undo: %s", what)
 542		}
 543		targ, _ := obj.GetString("object")
 544		m := re_ont.FindStringSubmatch(targ)
 545		if len(m) != 2 {
 546			log.Printf("not sure how to handle this")
 547			return
 548		}
 549		ont := "#" + m[1]
 550		log.Printf("updating honker undo: %s %s", who, ont)
 551		_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, ont, "dub")
 552		if err != nil {
 553			log.Printf("error updating honker: %s", err)
 554			return
 555		}
 556	}
 557}
 558
 559func serveractor(w http.ResponseWriter, r *http.Request) {
 560	if stealthmode(serverUID, r) {
 561		http.NotFound(w, r)
 562		return
 563	}
 564	user := getserveruser()
 565	j := junkuser(user)
 566	w.Write(j)
 567}
 568
 569func ximport(w http.ResponseWriter, r *http.Request) {
 570	u := login.GetUserInfo(r)
 571	xid := strings.TrimSpace(r.FormValue("xid"))
 572	xonk := getxonk(u.UserID, xid)
 573	if xonk == nil {
 574		p, _ := investigate(xid)
 575		if p != nil {
 576			xid = p.XID
 577		}
 578		j, err := GetJunk(xid)
 579		if err != nil {
 580			http.Error(w, "error getting external object", http.StatusInternalServerError)
 581			log.Printf("error getting external object: %s", err)
 582			return
 583		}
 584		allinjest(originate(xid), j)
 585		log.Printf("importing %s", xid)
 586		user, _ := butwhatabout(u.Username)
 587
 588		info, _ := somethingabout(j)
 589		if info == nil {
 590			xonk = xonksaver(user, j, originate(xid))
 591		} else if info.What == SomeActor {
 592			outbox, _ := j.GetString("outbox")
 593			gimmexonks(user, outbox)
 594			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 595			return
 596		} else if info.What == SomeCollection {
 597			gimmexonks(user, xid)
 598			http.Redirect(w, r, "/xzone", http.StatusSeeOther)
 599			return
 600		}
 601	}
 602	convoy := ""
 603	if xonk != nil {
 604		convoy = xonk.Convoy
 605	}
 606	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 607}
 608
 609func xzone(w http.ResponseWriter, r *http.Request) {
 610	u := login.GetUserInfo(r)
 611	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 612	if err != nil {
 613		log.Printf("query err: %s", err)
 614		return
 615	}
 616	defer rows.Close()
 617	var honkers []Honker
 618	for rows.Next() {
 619		var xid string
 620		rows.Scan(&xid)
 621		honkers = append(honkers, Honker{XID: xid})
 622	}
 623	rows.Close()
 624	for i, _ := range honkers {
 625		_, honkers[i].Handle = handles(honkers[i].XID)
 626	}
 627	templinfo := getInfo(r)
 628	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 629	templinfo["Honkers"] = honkers
 630	err = readviews.Execute(w, "xzone.html", templinfo)
 631	if err != nil {
 632		log.Print(err)
 633	}
 634}
 635
 636var oldoutbox = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
 637	user, err := butwhatabout(name)
 638	if err != nil {
 639		return nil, false
 640	}
 641	honks := gethonksbyuser(name, false, 0)
 642	if len(honks) > 20 {
 643		honks = honks[0:20]
 644	}
 645
 646	var jonks []junk.Junk
 647	for _, h := range honks {
 648		j, _ := jonkjonk(user, h)
 649		jonks = append(jonks, j)
 650	}
 651
 652	j := junk.New()
 653	j["@context"] = itiswhatitis
 654	j["id"] = user.URL + "/outbox"
 655	j["attributedTo"] = user.URL
 656	j["type"] = "OrderedCollection"
 657	j["totalItems"] = len(jonks)
 658	j["orderedItems"] = jonks
 659
 660	return j.ToBytes(), true
 661}, Duration: 1 * time.Minute})
 662
 663func outbox(w http.ResponseWriter, r *http.Request) {
 664	name := mux.Vars(r)["name"]
 665	user, err := butwhatabout(name)
 666	if err != nil {
 667		http.NotFound(w, r)
 668		return
 669	}
 670	if stealthmode(user.ID, r) {
 671		http.NotFound(w, r)
 672		return
 673	}
 674	var j []byte
 675	ok := oldoutbox.Get(name, &j)
 676	if ok {
 677		w.Header().Set("Content-Type", theonetruename)
 678		w.Write(j)
 679	} else {
 680		http.NotFound(w, r)
 681	}
 682}
 683
 684var oldempties = cache.New(cache.Options{Filler: func(url string) ([]byte, bool) {
 685	colname := "/followers"
 686	if strings.HasSuffix(url, "/following") {
 687		colname = "/following"
 688	}
 689	user := fmt.Sprintf("https://%s%s", serverName, url[:len(url)-10])
 690	j := junk.New()
 691	j["@context"] = itiswhatitis
 692	j["id"] = user + colname
 693	j["attributedTo"] = user
 694	j["type"] = "OrderedCollection"
 695	j["totalItems"] = 0
 696	j["orderedItems"] = []junk.Junk{}
 697
 698	return j.ToBytes(), true
 699}})
 700
 701func emptiness(w http.ResponseWriter, r *http.Request) {
 702	name := mux.Vars(r)["name"]
 703	user, err := butwhatabout(name)
 704	if err != nil {
 705		http.NotFound(w, r)
 706		return
 707	}
 708	if stealthmode(user.ID, r) {
 709		http.NotFound(w, r)
 710		return
 711	}
 712	var j []byte
 713	ok := oldempties.Get(r.URL.Path, &j)
 714	if ok {
 715		w.Header().Set("Content-Type", theonetruename)
 716		w.Write(j)
 717	} else {
 718		http.NotFound(w, r)
 719	}
 720}
 721
 722func showuser(w http.ResponseWriter, r *http.Request) {
 723	name := mux.Vars(r)["name"]
 724	user, err := butwhatabout(name)
 725	if err != nil {
 726		log.Printf("user not found %s: %s", name, err)
 727		http.NotFound(w, r)
 728		return
 729	}
 730	if stealthmode(user.ID, r) {
 731		http.NotFound(w, r)
 732		return
 733	}
 734	if friendorfoe(r.Header.Get("Accept")) {
 735		j, ok := asjonker(name)
 736		if ok {
 737			w.Header().Set("Content-Type", theonetruename)
 738			w.Write(j)
 739		} else {
 740			http.NotFound(w, r)
 741		}
 742		return
 743	}
 744	u := login.GetUserInfo(r)
 745	honks := gethonksbyuser(name, u != nil && u.Username == name, 0)
 746	templinfo := getInfo(r)
 747	templinfo["Name"] = user.Name
 748	whatabout := user.About
 749	whatabout = markitzero(user.About)
 750	templinfo["WhatAbout"] = template.HTML(whatabout)
 751	templinfo["ServerMessage"] = ""
 752	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 753	honkpage(w, u, honks, templinfo)
 754}
 755
 756func showhonker(w http.ResponseWriter, r *http.Request) {
 757	u := login.GetUserInfo(r)
 758	name := mux.Vars(r)["name"]
 759	var honks []*Honk
 760	if name == "" {
 761		name = r.FormValue("xid")
 762		honks = gethonksbyxonker(u.UserID, name, 0)
 763	} else {
 764		honks = gethonksbyhonker(u.UserID, name, 0)
 765	}
 766	msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, name, name)
 767	templinfo := getInfo(r)
 768	templinfo["PageName"] = "honker"
 769	templinfo["PageArg"] = name
 770	templinfo["ServerMessage"] = msg
 771	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 772	honkpage(w, u, honks, templinfo)
 773}
 774
 775func showcombo(w http.ResponseWriter, r *http.Request) {
 776	name := mux.Vars(r)["name"]
 777	u := login.GetUserInfo(r)
 778	honks := gethonksbycombo(u.UserID, name, 0)
 779	honks = osmosis(honks, u.UserID, true)
 780	templinfo := getInfo(r)
 781	templinfo["PageName"] = "combo"
 782	templinfo["PageArg"] = name
 783	templinfo["ServerMessage"] = "honks by combo: " + name
 784	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 785	honkpage(w, u, honks, templinfo)
 786}
 787func showconvoy(w http.ResponseWriter, r *http.Request) {
 788	c := r.FormValue("c")
 789	u := login.GetUserInfo(r)
 790	honks := gethonksbyconvoy(u.UserID, c, 0)
 791	templinfo := getInfo(r)
 792	if len(honks) > 0 {
 793		templinfo["TopHID"] = honks[0].ID
 794	}
 795	honks = osmosis(honks, u.UserID, false)
 796	reversehonks(honks)
 797	templinfo["PageName"] = "convoy"
 798	templinfo["PageArg"] = c
 799	templinfo["ServerMessage"] = "honks in convoy: " + c
 800	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 801	honkpage(w, u, honks, templinfo)
 802}
 803func showsearch(w http.ResponseWriter, r *http.Request) {
 804	q := r.FormValue("q")
 805	u := login.GetUserInfo(r)
 806	honks := gethonksbysearch(u.UserID, q, 0)
 807	templinfo := getInfo(r)
 808	templinfo["PageName"] = "search"
 809	templinfo["PageArg"] = q
 810	templinfo["ServerMessage"] = "honks for search: " + q
 811	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 812	honkpage(w, u, honks, templinfo)
 813}
 814func showontology(w http.ResponseWriter, r *http.Request) {
 815	name := mux.Vars(r)["name"]
 816	u := login.GetUserInfo(r)
 817	var userid int64 = -1
 818	if u != nil {
 819		userid = u.UserID
 820	}
 821	honks := gethonksbyontology(userid, "#"+name, 0)
 822	if friendorfoe(r.Header.Get("Accept")) {
 823		if len(honks) > 40 {
 824			honks = honks[0:40]
 825		}
 826
 827		var xids []string
 828		for _, h := range honks {
 829			xids = append(xids, h.XID)
 830		}
 831
 832		user := getserveruser()
 833
 834		j := junk.New()
 835		j["@context"] = itiswhatitis
 836		j["id"] = fmt.Sprintf("https://%s/o/%s", serverName, name)
 837		j["name"] = "#" + name
 838		j["attributedTo"] = user.URL
 839		j["type"] = "OrderedCollection"
 840		j["totalItems"] = len(xids)
 841		j["orderedItems"] = xids
 842
 843		j.Write(w)
 844		return
 845	}
 846
 847	templinfo := getInfo(r)
 848	templinfo["ServerMessage"] = "honks by ontology: " + name
 849	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 850	honkpage(w, u, honks, templinfo)
 851}
 852
 853type Ont struct {
 854	Name  string
 855	Count int64
 856}
 857
 858func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 859	u := login.GetUserInfo(r)
 860	var userid int64 = -1
 861	if u != nil {
 862		userid = u.UserID
 863	}
 864	rows, err := stmtAllOnts.Query(userid)
 865	if err != nil {
 866		log.Printf("selection error: %s", err)
 867		return
 868	}
 869	defer rows.Close()
 870	var onts []Ont
 871	for rows.Next() {
 872		var o Ont
 873		err := rows.Scan(&o.Name, &o.Count)
 874		if err != nil {
 875			log.Printf("error scanning ont: %s", err)
 876			continue
 877		}
 878		if len(o.Name) > 24 {
 879			continue
 880		}
 881		o.Name = o.Name[1:]
 882		onts = append(onts, o)
 883	}
 884	sort.Slice(onts, func(i, j int) bool {
 885		return onts[i].Name < onts[j].Name
 886	})
 887	if u == nil && !debugMode {
 888		w.Header().Set("Cache-Control", "max-age=300")
 889	}
 890	templinfo := getInfo(r)
 891	templinfo["Onts"] = onts
 892	err = readviews.Execute(w, "onts.html", templinfo)
 893	if err != nil {
 894		log.Print(err)
 895	}
 896}
 897
 898type Track struct {
 899	xid string
 900	who string
 901}
 902
 903func getbacktracks(xid string) []string {
 904	c := make(chan bool)
 905	dumptracks <- c
 906	<-c
 907	row := stmtGetTracks.QueryRow(xid)
 908	var rawtracks string
 909	err := row.Scan(&rawtracks)
 910	if err != nil {
 911		if err != sql.ErrNoRows {
 912			log.Printf("error scanning tracks: %s", err)
 913		}
 914		return nil
 915	}
 916	var rcpts []string
 917	for _, f := range strings.Split(rawtracks, " ") {
 918		idx := strings.LastIndexByte(f, '#')
 919		if idx != -1 {
 920			f = f[:idx]
 921		}
 922		if !strings.HasPrefix(f, "https://") {
 923			f = fmt.Sprintf("%%https://%s/inbox", f)
 924		}
 925		rcpts = append(rcpts, f)
 926	}
 927	return rcpts
 928}
 929
 930func savetracks(tracks map[string][]string) {
 931	db := opendatabase()
 932	tx, err := db.Begin()
 933	if err != nil {
 934		log.Printf("savetracks begin error: %s", err)
 935		return
 936	}
 937	defer func() {
 938		err := tx.Commit()
 939		if err != nil {
 940			log.Printf("savetracks commit error: %s", err)
 941		}
 942
 943	}()
 944	stmtGetTracks, err := tx.Prepare("select fetches from tracks where xid = ?")
 945	if err != nil {
 946		log.Printf("savetracks error: %s", err)
 947		return
 948	}
 949	stmtNewTracks, err := tx.Prepare("insert into tracks (xid, fetches) values (?, ?)")
 950	if err != nil {
 951		log.Printf("savetracks error: %s", err)
 952		return
 953	}
 954	stmtUpdateTracks, err := tx.Prepare("update tracks set fetches = ? where xid = ?")
 955	if err != nil {
 956		log.Printf("savetracks error: %s", err)
 957		return
 958	}
 959	count := 0
 960	for xid, f := range tracks {
 961		count += len(f)
 962		var prev string
 963		row := stmtGetTracks.QueryRow(xid)
 964		err := row.Scan(&prev)
 965		if err == sql.ErrNoRows {
 966			f = oneofakind(f)
 967			stmtNewTracks.Exec(xid, strings.Join(f, " "))
 968		} else if err == nil {
 969			all := append(strings.Split(prev, " "), f...)
 970			all = oneofakind(all)
 971			stmtUpdateTracks.Exec(strings.Join(all, " "))
 972		} else {
 973			log.Printf("savetracks error: %s", err)
 974		}
 975	}
 976	log.Printf("saved %d new fetches", count)
 977}
 978
 979var trackchan = make(chan Track)
 980var dumptracks = make(chan chan bool)
 981
 982func tracker() {
 983	timeout := 4 * time.Minute
 984	sleeper := time.NewTimer(timeout)
 985	tracks := make(map[string][]string)
 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	}
1096	reverbolate(userid, honks)
1097	templinfo["Honks"] = honks
1098	templinfo["MapLink"] = getmaplink(u)
1099	if templinfo["TopHID"] == nil {
1100		if len(honks) > 0 {
1101			templinfo["TopHID"] = honks[0].ID
1102		} else {
1103			templinfo["TopHID"] = 0
1104		}
1105	}
1106	if u == nil && !debugMode {
1107		w.Header().Set("Cache-Control", "max-age=60")
1108	}
1109	err := readviews.Execute(w, "honkpage.html", templinfo)
1110	if err != nil {
1111		log.Print(err)
1112	}
1113}
1114
1115func saveuser(w http.ResponseWriter, r *http.Request) {
1116	whatabout := r.FormValue("whatabout")
1117	whatabout = strings.Replace(whatabout, "\r", "", -1)
1118	u := login.GetUserInfo(r)
1119	user, _ := butwhatabout(u.Username)
1120	db := opendatabase()
1121	options := user.Options
1122	if r.FormValue("skinny") == "skinny" {
1123		options.SkinnyCSS = true
1124	} else {
1125		options.SkinnyCSS = false
1126	}
1127	if r.FormValue("omitimages") == "omitimages" {
1128		options.OmitImages = true
1129	} else {
1130		options.OmitImages = false
1131	}
1132	if r.FormValue("maps") == "apple" {
1133		options.MapLink = "apple"
1134	} else {
1135		options.MapLink = ""
1136	}
1137	options.Reaction = r.FormValue("reaction")
1138	if ava := re_avatar.FindString(whatabout); ava != "" {
1139		whatabout = re_avatar.ReplaceAllString(whatabout, "")
1140		ava = ava[7:]
1141		if ava[0] == ' ' {
1142			ava = ava[1:]
1143		}
1144		options.Avatar = fmt.Sprintf("https://%s/meme/%s", serverName, ava)
1145	} else {
1146		options.Avatar = ""
1147	}
1148	whatabout = strings.TrimSpace(whatabout)
1149	j, err := jsonify(options)
1150	if err == nil {
1151		_, err = db.Exec("update users set about = ?, options = ? where username = ?", whatabout, j, u.Username)
1152	}
1153	if err != nil {
1154		log.Printf("error bouting what: %s", err)
1155	}
1156	somenamedusers.Clear(u.Username)
1157	somenumberedusers.Clear(u.UserID)
1158
1159	http.Redirect(w, r, "/account", http.StatusSeeOther)
1160}
1161
1162func submitbonk(w http.ResponseWriter, r *http.Request) {
1163	xid := r.FormValue("xid")
1164	userinfo := login.GetUserInfo(r)
1165	user, _ := butwhatabout(userinfo.Username)
1166
1167	log.Printf("bonking %s", xid)
1168
1169	xonk := getxonk(userinfo.UserID, 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:   userinfo.UserID,
1193		Username: userinfo.Username,
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	if r.FormValue("js") != "1" {
1223		templinfo := getInfo(r)
1224		templinfo["ServerMessage"] = "Bonked!"
1225		err = readviews.Execute(w, "msg.html", templinfo)
1226		if err != nil {
1227			log.Print(err)
1228		}
1229	}
1230}
1231
1232func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string) {
1233	zonk := &Honk{
1234		What:     what,
1235		XID:      xonk.XID,
1236		Date:     time.Now().UTC(),
1237		Audience: oneofakind(xonk.Audience),
1238	}
1239	zonk.Public = loudandproud(zonk.Audience)
1240
1241	log.Printf("announcing %sed honk: %s", what, xonk.XID)
1242	go honkworldwide(user, zonk)
1243}
1244
1245func zonkit(w http.ResponseWriter, r *http.Request) {
1246	wherefore := r.FormValue("wherefore")
1247	what := r.FormValue("what")
1248	userinfo := login.GetUserInfo(r)
1249	user, _ := butwhatabout(userinfo.Username)
1250
1251	if wherefore == "save" {
1252		xonk := getxonk(userinfo.UserID, what)
1253		if xonk != nil {
1254			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
1255			if err != nil {
1256				log.Printf("error saving: %s", err)
1257			}
1258		}
1259		return
1260	}
1261
1262	if wherefore == "unsave" {
1263		xonk := getxonk(userinfo.UserID, what)
1264		if xonk != nil {
1265			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
1266			if err != nil {
1267				log.Printf("error unsaving: %s", err)
1268			}
1269		}
1270		return
1271	}
1272
1273	if wherefore == "react" {
1274		xonk := getxonk(userinfo.UserID, what)
1275		if xonk != nil {
1276			_, err := stmtUpdateFlags.Exec(flagIsReacted, xonk.ID)
1277			if err != nil {
1278				log.Printf("error saving: %s", err)
1279			}
1280			sendzonkofsorts(xonk, user, "react")
1281		}
1282		return
1283	}
1284
1285	// my hammer is too big, oh well
1286	defer oldjonks.Flush()
1287
1288	if wherefore == "ack" {
1289		xonk := getxonk(userinfo.UserID, what)
1290		if xonk != nil && !xonk.IsAcked() {
1291			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
1292			if err != nil {
1293				log.Printf("error acking: %s", err)
1294			}
1295			sendzonkofsorts(xonk, user, "ack")
1296		}
1297		return
1298	}
1299
1300	if wherefore == "deack" {
1301		xonk := getxonk(userinfo.UserID, what)
1302		if xonk != nil && xonk.IsAcked() {
1303			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
1304			if err != nil {
1305				log.Printf("error deacking: %s", err)
1306			}
1307			sendzonkofsorts(xonk, user, "deack")
1308		}
1309		return
1310	}
1311
1312	if wherefore == "unbonk" {
1313		xonk := getbonk(userinfo.UserID, what)
1314		if xonk != nil {
1315			deletehonk(xonk.ID)
1316			xonk = getxonk(userinfo.UserID, what)
1317			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
1318			if err != nil {
1319				log.Printf("error unbonking: %s", err)
1320			}
1321			sendzonkofsorts(xonk, user, "unbonk")
1322		}
1323		return
1324	}
1325
1326	if wherefore == "untag" {
1327		xonk := getxonk(userinfo.UserID, what)
1328		if xonk != nil {
1329			_, err := stmtUpdateFlags.Exec(flagIsUntagged, xonk.ID)
1330			if err != nil {
1331				log.Printf("error untagging: %s", err)
1332			}
1333		}
1334		var badparents map[string]bool
1335		untagged.GetAndLock(userinfo.UserID, &badparents)
1336		badparents[what] = true
1337		untagged.Unlock()
1338		return
1339	}
1340
1341	log.Printf("zonking %s %s", wherefore, what)
1342	if wherefore == "zonk" {
1343		xonk := getxonk(userinfo.UserID, what)
1344		if xonk != nil {
1345			deletehonk(xonk.ID)
1346			if xonk.Whofore == 2 || xonk.Whofore == 3 {
1347				sendzonkofsorts(xonk, user, "zonk")
1348			}
1349		}
1350	}
1351	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
1352	if err != nil {
1353		log.Printf("error saving zonker: %s", err)
1354		return
1355	}
1356}
1357
1358func edithonkpage(w http.ResponseWriter, r *http.Request) {
1359	u := login.GetUserInfo(r)
1360	user, _ := butwhatabout(u.Username)
1361	xid := r.FormValue("xid")
1362	honk := getxonk(u.UserID, xid)
1363	if !canedithonk(user, honk) {
1364		http.Error(w, "no editing that please", http.StatusInternalServerError)
1365		return
1366	}
1367
1368	noise := honk.Noise
1369
1370	honks := []*Honk{honk}
1371	donksforhonks(honks)
1372	reverbolate(u.UserID, honks)
1373	templinfo := getInfo(r)
1374	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1375	templinfo["Honks"] = honks
1376	templinfo["MapLink"] = getmaplink(u)
1377	templinfo["Noise"] = noise
1378	templinfo["SavedPlace"] = honk.Place
1379	if tm := honk.Time; tm != nil {
1380		templinfo["ShowTime"] = ";"
1381		templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1382		templinfo["Duration"] = tm.Duration
1383	}
1384	templinfo["ServerMessage"] = "honk edit 2"
1385	templinfo["IsPreview"] = true
1386	templinfo["UpdateXID"] = honk.XID
1387	if len(honk.Donks) > 0 {
1388		templinfo["SavedFile"] = honk.Donks[0].XID
1389	}
1390	err := readviews.Execute(w, "honkpage.html", templinfo)
1391	if err != nil {
1392		log.Print(err)
1393	}
1394}
1395
1396func newhonkpage(w http.ResponseWriter, r *http.Request) {
1397	u := login.GetUserInfo(r)
1398	rid := r.FormValue("rid")
1399	noise := ""
1400
1401	xonk := getxonk(u.UserID, rid)
1402	if xonk != nil {
1403		_, replto := handles(xonk.Honker)
1404		if replto != "" {
1405			noise = "@" + replto + " "
1406		}
1407	}
1408
1409	templinfo := getInfo(r)
1410	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1411	templinfo["InReplyTo"] = rid
1412	templinfo["Noise"] = noise
1413	templinfo["ServerMessage"] = "compose honk"
1414	templinfo["IsPreview"] = true
1415	err := readviews.Execute(w, "honkpage.html", templinfo)
1416	if err != nil {
1417		log.Print(err)
1418	}
1419}
1420
1421func canedithonk(user *WhatAbout, honk *Honk) bool {
1422	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1423		return false
1424	}
1425	return true
1426}
1427
1428func submitwebhonk(w http.ResponseWriter, r *http.Request) {
1429	submithonk(w, r, false)
1430}
1431
1432// what a hot mess this function is
1433func submithonk(w http.ResponseWriter, r *http.Request, isAPI bool) {
1434	rid := r.FormValue("rid")
1435	noise := r.FormValue("noise")
1436	format := r.FormValue("format")
1437	if format == "" {
1438		format = "markdown"
1439	}
1440	if !(format == "markdown" || format == "html") {
1441		http.Error(w, "unknown format", 500)
1442		return
1443	}
1444
1445	userinfo := login.GetUserInfo(r)
1446	user, _ := butwhatabout(userinfo.Username)
1447
1448	dt := time.Now().UTC()
1449	updatexid := r.FormValue("updatexid")
1450	var honk *Honk
1451	if updatexid != "" {
1452		honk = getxonk(userinfo.UserID, updatexid)
1453		if !canedithonk(user, honk) {
1454			http.Error(w, "no editing that please", http.StatusInternalServerError)
1455			return
1456		}
1457		honk.Date = dt
1458		honk.What = "update"
1459		honk.Format = format
1460	} else {
1461		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1462		what := "honk"
1463		if rid != "" {
1464			what = "tonk"
1465		}
1466		honk = &Honk{
1467			UserID:   userinfo.UserID,
1468			Username: userinfo.Username,
1469			What:     what,
1470			Honker:   user.URL,
1471			XID:      xid,
1472			Date:     dt,
1473			Format:   format,
1474		}
1475	}
1476
1477	noise = strings.Replace(noise, "\r", "", -1)
1478	noise = quickrename(noise, userinfo.UserID)
1479	noise = hooterize(noise)
1480	honk.Mentions = bunchofgrapes(noise)
1481	honk.Noise = noise
1482	translate(honk)
1483
1484	var convoy string
1485	if rid != "" {
1486		xonk := getxonk(userinfo.UserID, rid)
1487		if xonk == nil {
1488			http.Error(w, "replyto disappeared", http.StatusNotFound)
1489			return
1490		}
1491		if xonk.Public {
1492			honk.Audience = append(honk.Audience, xonk.Audience...)
1493		}
1494		convoy = xonk.Convoy
1495		for i, a := range honk.Audience {
1496			if a == thewholeworld {
1497				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1498				break
1499			}
1500		}
1501		honk.RID = rid
1502		if xonk.Precis != "" && honk.Precis == "" {
1503			honk.Precis = xonk.Precis
1504			if !(strings.HasPrefix(honk.Precis, "DZ:") || strings.HasPrefix(honk.Precis, "re: re: re: ")) {
1505				honk.Precis = "re: " + honk.Precis
1506			}
1507		}
1508	} else {
1509		honk.Audience = []string{thewholeworld}
1510	}
1511	if honk.Noise != "" && honk.Noise[0] == '@' {
1512		honk.Audience = append(grapevine(honk.Noise), honk.Audience...)
1513	} else {
1514		honk.Audience = append(honk.Audience, grapevine(honk.Noise)...)
1515	}
1516
1517	if convoy == "" {
1518		convoy = "data:,electrichonkytonk-" + xfiltrate()
1519	}
1520	butnottooloud(honk.Audience)
1521	honk.Audience = oneofakind(honk.Audience)
1522	if len(honk.Audience) == 0 {
1523		log.Printf("honk to nowhere")
1524		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1525		return
1526	}
1527	honk.Public = loudandproud(honk.Audience)
1528	honk.Convoy = convoy
1529
1530	donkxid := r.FormValue("donkxid")
1531	if donkxid == "" {
1532		file, filehdr, err := r.FormFile("donk")
1533		if err == nil {
1534			var buf bytes.Buffer
1535			io.Copy(&buf, file)
1536			file.Close()
1537			data := buf.Bytes()
1538			xid := xfiltrate()
1539			var media, name string
1540			img, err := shrinkit(data)
1541			if err == nil {
1542				data = img.Data
1543				format := img.Format
1544				media = "image/" + format
1545				if format == "jpeg" {
1546					format = "jpg"
1547				}
1548				name = xid + "." + format
1549				xid = name
1550			} else {
1551				ct := http.DetectContentType(data)
1552				switch ct {
1553				case "application/pdf":
1554					maxsize := 1000000
1555					if len(data) > maxsize {
1556						log.Printf("bad image: %s too much pdf: %d", err, len(data))
1557						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1558						return
1559					}
1560					media = ct
1561					xid += ".pdf"
1562					name = filehdr.Filename
1563					if name == "" {
1564						name = xid
1565					}
1566				default:
1567					maxsize := 100000
1568					if len(data) > maxsize {
1569						log.Printf("bad image: %s too much text: %d", err, len(data))
1570						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1571						return
1572					}
1573					for i := 0; i < len(data); i++ {
1574						if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1575							log.Printf("bad image: %s not text: %d", err, data[i])
1576							http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1577							return
1578						}
1579					}
1580					media = "text/plain"
1581					xid += ".txt"
1582					name = filehdr.Filename
1583					if name == "" {
1584						name = xid
1585					}
1586				}
1587			}
1588			desc := strings.TrimSpace(r.FormValue("donkdesc"))
1589			if desc == "" {
1590				desc = name
1591			}
1592			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1593			fileid, err := savefile(xid, name, desc, url, media, true, data)
1594			if err != nil {
1595				log.Printf("unable to save image: %s", err)
1596				return
1597			}
1598			d := &Donk{
1599				FileID: fileid,
1600				XID:    xid,
1601				Desc:   desc,
1602				URL:    url,
1603				Local:  true,
1604			}
1605			honk.Donks = append(honk.Donks, d)
1606			donkxid = xid
1607		}
1608	} else {
1609		xid := donkxid
1610		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1611		donk := finddonk(url)
1612		if donk != nil {
1613			honk.Donks = append(honk.Donks, donk)
1614		} else {
1615			log.Printf("can't find file: %s", xid)
1616		}
1617	}
1618	memetize(honk)
1619	imaginate(honk)
1620
1621	placename := strings.TrimSpace(r.FormValue("placename"))
1622	placelat := strings.TrimSpace(r.FormValue("placelat"))
1623	placelong := strings.TrimSpace(r.FormValue("placelong"))
1624	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1625	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1626		p := new(Place)
1627		p.Name = placename
1628		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1629		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1630		p.Url = placeurl
1631		honk.Place = p
1632	}
1633	timestart := strings.TrimSpace(r.FormValue("timestart"))
1634	if timestart != "" {
1635		t := new(Time)
1636		now := time.Now().Local()
1637		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1638			start, err := time.ParseInLocation(layout, timestart, now.Location())
1639			if err == nil {
1640				if start.Year() == 0 {
1641					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1642				}
1643				t.StartTime = start
1644				break
1645			}
1646		}
1647		timeend := r.FormValue("timeend")
1648		dur := parseDuration(timeend)
1649		if dur != 0 {
1650			t.Duration = Duration(dur)
1651		}
1652		if !t.StartTime.IsZero() {
1653			honk.What = "event"
1654			honk.Time = t
1655		}
1656	}
1657
1658	if honk.Public {
1659		honk.Whofore = 2
1660	} else {
1661		honk.Whofore = 3
1662	}
1663
1664	// back to markdown
1665	honk.Noise = noise
1666
1667	if r.FormValue("preview") == "preview" {
1668		honks := []*Honk{honk}
1669		reverbolate(userinfo.UserID, honks)
1670		templinfo := getInfo(r)
1671		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1672		templinfo["Honks"] = honks
1673		templinfo["MapLink"] = getmaplink(userinfo)
1674		templinfo["InReplyTo"] = r.FormValue("rid")
1675		templinfo["Noise"] = r.FormValue("noise")
1676		templinfo["SavedFile"] = donkxid
1677		if tm := honk.Time; tm != nil {
1678			templinfo["ShowTime"] = ";"
1679			templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1680			templinfo["Duration"] = tm.Duration
1681		}
1682		templinfo["IsPreview"] = true
1683		templinfo["UpdateXID"] = updatexid
1684		templinfo["ServerMessage"] = "honk preview"
1685		err := readviews.Execute(w, "honkpage.html", templinfo)
1686		if err != nil {
1687			log.Print(err)
1688		}
1689		return
1690	}
1691
1692	if updatexid != "" {
1693		updatehonk(honk)
1694		oldjonks.Clear(honk.XID)
1695	} else {
1696		err := savehonk(honk)
1697		if err != nil {
1698			log.Printf("uh oh")
1699			return
1700		}
1701	}
1702
1703	// reload for consistency
1704	honk.Donks = nil
1705	donksforhonks([]*Honk{honk})
1706
1707	go honkworldwide(user, honk)
1708
1709	if isAPI {
1710		w.Write([]byte(honk.XID))
1711	} else {
1712		http.Redirect(w, r, honk.XID[len(serverName)+8:], http.StatusSeeOther)
1713	}
1714}
1715
1716func showhonkers(w http.ResponseWriter, r *http.Request) {
1717	userinfo := login.GetUserInfo(r)
1718	templinfo := getInfo(r)
1719	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1720	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1721	err := readviews.Execute(w, "honkers.html", templinfo)
1722	if err != nil {
1723		log.Print(err)
1724	}
1725}
1726
1727var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
1728	honkers := gethonkers(userid)
1729	var combos []string
1730	for _, h := range honkers {
1731		combos = append(combos, h.Combos...)
1732	}
1733	for i, c := range combos {
1734		if c == "-" {
1735			combos[i] = ""
1736		}
1737	}
1738	combos = oneofakind(combos)
1739	sort.Strings(combos)
1740	return combos, true
1741}, Invalidator: &honkerinvalidator})
1742
1743func showcombos(w http.ResponseWriter, r *http.Request) {
1744	userinfo := login.GetUserInfo(r)
1745	var combos []string
1746	combocache.Get(userinfo.UserID, &combos)
1747	templinfo := getInfo(r)
1748	err := readviews.Execute(w, "combos.html", templinfo)
1749	if err != nil {
1750		log.Print(err)
1751	}
1752}
1753
1754func submithonker(w http.ResponseWriter, r *http.Request) {
1755	u := login.GetUserInfo(r)
1756	name := strings.TrimSpace(r.FormValue("name"))
1757	url := strings.TrimSpace(r.FormValue("url"))
1758	peep := r.FormValue("peep")
1759	combos := strings.TrimSpace(r.FormValue("combos"))
1760	combos = " " + combos + " "
1761	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1762
1763	var meta HonkerMeta
1764	meta.Notes = strings.TrimSpace(r.FormValue("notes"))
1765	mj, _ := jsonify(&meta)
1766
1767	defer honkerinvalidator.Clear(u.UserID)
1768
1769	if honkerid > 0 {
1770		goodbye := r.FormValue("goodbye")
1771		if goodbye == "F" {
1772			db := opendatabase()
1773			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1774				honkerid, u.UserID)
1775			err := row.Scan(&url)
1776			if err != nil {
1777				log.Printf("can't get honker xid: %s", err)
1778				return
1779			}
1780			log.Printf("unsubscribing from %s", url)
1781			user, _ := butwhatabout(u.Username)
1782			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, name, "sub")
1783			if err != nil {
1784				log.Printf("error updating honker: %s", err)
1785				return
1786			}
1787			go itakeitallback(user, url)
1788
1789			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1790			return
1791		}
1792		if goodbye == "X" {
1793			var owner string
1794			db := opendatabase()
1795			row := db.QueryRow("select xid, owner from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub')",
1796				honkerid, u.UserID)
1797			err := row.Scan(&url, &owner)
1798			if err != nil {
1799				log.Printf("can't get honker xid: %s", err)
1800				return
1801			}
1802			log.Printf("resubscribing to %s", url)
1803			user, _ := butwhatabout(u.Username)
1804			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "unsub")
1805			if err == nil {
1806				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "peep")
1807			}
1808			if err != nil {
1809				log.Printf("error updating honker: %s", err)
1810				return
1811			}
1812			go subsub(user, url, owner)
1813
1814			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1815			return
1816		}
1817		_, err := stmtUpdateHonker.Exec(name, combos, mj, honkerid, u.UserID)
1818		if err != nil {
1819			log.Printf("update honker err: %s", err)
1820			return
1821		}
1822		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1823		return
1824	}
1825
1826	if url == "" {
1827		http.Error(w, "subscribing to nothing?", http.StatusInternalServerError)
1828		return
1829	}
1830
1831	flavor := "presub"
1832	if peep == "peep" {
1833		flavor = "peep"
1834	}
1835
1836	if url[0] == '#' {
1837		flavor = "peep"
1838		if name == "" {
1839			name = url
1840		}
1841		_, err := stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, url, mj)
1842		if err != nil {
1843			log.Print(err)
1844			return
1845		}
1846		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1847		return
1848	}
1849
1850	info, err := investigate(url)
1851	if err != nil {
1852		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1853		log.Printf("failed to investigate honker: %s", err)
1854		return
1855	}
1856	url = info.XID
1857
1858	var x string
1859	db := opendatabase()
1860	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1861	err = row.Scan(&x)
1862	if err != sql.ErrNoRows {
1863		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1864		if err != nil {
1865			log.Printf("honker scan err: %s", err)
1866		}
1867		return
1868	}
1869
1870	if name == "" {
1871		name = info.Name
1872	}
1873	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, info.Owner, mj)
1874	if err != nil {
1875		log.Print(err)
1876		return
1877	}
1878	if flavor == "presub" {
1879		user, _ := butwhatabout(u.Username)
1880		go subsub(user, url, info.Owner)
1881	}
1882	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1883}
1884
1885func hfcspage(w http.ResponseWriter, r *http.Request) {
1886	userinfo := login.GetUserInfo(r)
1887
1888	filters := getfilters(userinfo.UserID, filtAny)
1889
1890	templinfo := getInfo(r)
1891	templinfo["Filters"] = filters
1892	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1893	err := readviews.Execute(w, "hfcs.html", templinfo)
1894	if err != nil {
1895		log.Print(err)
1896	}
1897}
1898
1899func savehfcs(w http.ResponseWriter, r *http.Request) {
1900	userinfo := login.GetUserInfo(r)
1901	itsok := r.FormValue("itsok")
1902	if itsok == "iforgiveyou" {
1903		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1904		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1905		if err != nil {
1906			log.Printf("error deleting filter: %s", err)
1907		}
1908		filtInvalidator.Clear(userinfo.UserID)
1909		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1910		return
1911	}
1912
1913	filt := new(Filter)
1914	filt.Name = strings.TrimSpace(r.FormValue("name"))
1915	filt.Date = time.Now().UTC()
1916	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
1917	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1918	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
1919	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1920	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
1921	filt.Reject = r.FormValue("doreject") == "yes"
1922	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1923	filt.Hide = r.FormValue("dohide") == "yes"
1924	filt.Collapse = r.FormValue("docollapse") == "yes"
1925	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
1926	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
1927	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
1928		filt.Expiration = time.Now().UTC().Add(dur)
1929	}
1930	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
1931
1932	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
1933		log.Printf("blank filter")
1934		http.Error(w, "can't save a blank filter", http.StatusInternalServerError)
1935		return
1936	}
1937
1938	j, err := jsonify(filt)
1939	if err == nil {
1940		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1941	}
1942	if err != nil {
1943		log.Printf("error saving filter: %s", err)
1944	}
1945
1946	filtInvalidator.Clear(userinfo.UserID)
1947	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1948}
1949
1950func accountpage(w http.ResponseWriter, r *http.Request) {
1951	u := login.GetUserInfo(r)
1952	user, _ := butwhatabout(u.Username)
1953	templinfo := getInfo(r)
1954	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1955	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1956	templinfo["User"] = user
1957	about := user.About
1958	if ava := user.Options.Avatar; ava != "" {
1959		about += "\n\navatar: " + ava[strings.LastIndexByte(ava, '/')+1:]
1960	}
1961	templinfo["WhatAbout"] = about
1962	err := readviews.Execute(w, "account.html", templinfo)
1963	if err != nil {
1964		log.Print(err)
1965	}
1966}
1967
1968func dochpass(w http.ResponseWriter, r *http.Request) {
1969	err := login.ChangePassword(w, r)
1970	if err != nil {
1971		log.Printf("error changing password: %s", err)
1972	}
1973	http.Redirect(w, r, "/account", http.StatusSeeOther)
1974}
1975
1976func fingerlicker(w http.ResponseWriter, r *http.Request) {
1977	orig := r.FormValue("resource")
1978
1979	log.Printf("finger lick: %s", orig)
1980
1981	if strings.HasPrefix(orig, "acct:") {
1982		orig = orig[5:]
1983	}
1984
1985	name := orig
1986	idx := strings.LastIndexByte(name, '/')
1987	if idx != -1 {
1988		name = name[idx+1:]
1989		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
1990			log.Printf("foreign request rejected")
1991			name = ""
1992		}
1993	} else {
1994		idx = strings.IndexByte(name, '@')
1995		if idx != -1 {
1996			name = name[:idx]
1997			if name+"@"+serverName != orig {
1998				log.Printf("foreign request rejected")
1999				name = ""
2000			}
2001		}
2002	}
2003	user, err := butwhatabout(name)
2004	if err != nil {
2005		http.NotFound(w, r)
2006		return
2007	}
2008	if stealthmode(user.ID, r) {
2009		http.NotFound(w, r)
2010		return
2011	}
2012
2013	j := junk.New()
2014	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, serverName)
2015	j["aliases"] = []string{user.URL}
2016	l := junk.New()
2017	l["rel"] = "self"
2018	l["type"] = `application/activity+json`
2019	l["href"] = user.URL
2020	j["links"] = []junk.Junk{l}
2021
2022	w.Header().Set("Content-Type", "application/jrd+json")
2023	j.Write(w)
2024}
2025
2026func somedays() string {
2027	secs := 432000 + notrand.Int63n(432000)
2028	return fmt.Sprintf("%d", secs)
2029}
2030
2031func avatate(w http.ResponseWriter, r *http.Request) {
2032	if debugMode {
2033		loadAvatarColors()
2034	}
2035	n := r.FormValue("a")
2036	a := genAvatar(n)
2037	w.Header().Set("Cache-Control", "max-age="+somedays())
2038	w.Write(a)
2039}
2040
2041func serveasset(w http.ResponseWriter, r *http.Request) {
2042	if !debugMode {
2043		w.Header().Set("Cache-Control", "max-age=7776000")
2044	}
2045	dir := viewDir
2046	if r.URL.Path == "/local.css" {
2047		dir = dataDir
2048	}
2049	http.ServeFile(w, r, dir+"/views"+r.URL.Path)
2050}
2051func servehelp(w http.ResponseWriter, r *http.Request) {
2052	name := mux.Vars(r)["name"]
2053	if !debugMode {
2054		w.Header().Set("Cache-Control", "max-age=3600")
2055	}
2056	http.ServeFile(w, r, viewDir+"/docs/"+name)
2057}
2058func servehtml(w http.ResponseWriter, r *http.Request) {
2059	u := login.GetUserInfo(r)
2060	templinfo := getInfo(r)
2061	templinfo["AboutMsg"] = aboutMsg
2062	templinfo["LoginMsg"] = loginMsg
2063	templinfo["HonkVersion"] = softwareVersion
2064	if r.URL.Path == "/about" {
2065		templinfo["Sensors"] = getSensors()
2066	}
2067	if u == nil && !debugMode {
2068		w.Header().Set("Cache-Control", "max-age=60")
2069	}
2070	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
2071	if err != nil {
2072		log.Print(err)
2073	}
2074}
2075func serveemu(w http.ResponseWriter, r *http.Request) {
2076	emu := mux.Vars(r)["emu"]
2077
2078	w.Header().Set("Cache-Control", "max-age="+somedays())
2079	http.ServeFile(w, r, dataDir+"/emus/"+emu)
2080}
2081func servememe(w http.ResponseWriter, r *http.Request) {
2082	meme := mux.Vars(r)["meme"]
2083
2084	w.Header().Set("Cache-Control", "max-age="+somedays())
2085	http.ServeFile(w, r, dataDir+"/memes/"+meme)
2086}
2087
2088func servefile(w http.ResponseWriter, r *http.Request) {
2089	xid := mux.Vars(r)["xid"]
2090	var media string
2091	var data []byte
2092	row := stmtGetFileData.QueryRow(xid)
2093	err := row.Scan(&media, &data)
2094	if err != nil {
2095		log.Printf("error loading file: %s", err)
2096		http.NotFound(w, r)
2097		return
2098	}
2099	w.Header().Set("Content-Type", media)
2100	w.Header().Set("X-Content-Type-Options", "nosniff")
2101	w.Header().Set("Cache-Control", "max-age="+somedays())
2102	w.Write(data)
2103}
2104
2105func nomoroboto(w http.ResponseWriter, r *http.Request) {
2106	io.WriteString(w, "User-agent: *\n")
2107	io.WriteString(w, "Disallow: /a\n")
2108	io.WriteString(w, "Disallow: /d/\n")
2109	io.WriteString(w, "Disallow: /meme/\n")
2110	io.WriteString(w, "Disallow: /o\n")
2111	io.WriteString(w, "Disallow: /o/\n")
2112	for _, u := range allusers() {
2113		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
2114	}
2115}
2116
2117func webhydra(w http.ResponseWriter, r *http.Request) {
2118	u := login.GetUserInfo(r)
2119	userid := u.UserID
2120	templinfo := getInfo(r)
2121	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
2122	page := r.FormValue("page")
2123
2124	wanted, _ := strconv.ParseInt(r.FormValue("tophid"), 10, 0)
2125
2126	var honks []*Honk
2127	switch page {
2128	case "atme":
2129		honks = gethonksforme(userid, wanted)
2130		honks = osmosis(honks, userid, false)
2131		templinfo["ServerMessage"] = "at me!"
2132	case "home":
2133		honks = gethonksforuser(userid, wanted)
2134		honks = osmosis(honks, userid, true)
2135		templinfo["ServerMessage"] = serverMsg
2136	case "first":
2137		honks = gethonksforuserfirstclass(userid, wanted)
2138		honks = osmosis(honks, userid, true)
2139		templinfo["ServerMessage"] = "first class only"
2140	case "saved":
2141		honks = getsavedhonks(userid, wanted)
2142		templinfo["PageName"] = "saved"
2143		templinfo["ServerMessage"] = "saved honks"
2144	case "combo":
2145		c := r.FormValue("c")
2146		honks = gethonksbycombo(userid, c, wanted)
2147		honks = osmosis(honks, userid, false)
2148		templinfo["ServerMessage"] = "honks by combo: " + c
2149	case "convoy":
2150		c := r.FormValue("c")
2151		honks = gethonksbyconvoy(userid, c, wanted)
2152		honks = osmosis(honks, userid, false)
2153		templinfo["ServerMessage"] = "honks in convoy: " + c
2154	case "honker":
2155		xid := r.FormValue("xid")
2156		honks = gethonksbyxonker(userid, xid, wanted)
2157		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
2158		templinfo["ServerMessage"] = msg
2159	default:
2160		http.NotFound(w, r)
2161	}
2162	if len(honks) > 0 {
2163		templinfo["TopHID"] = honks[0].ID
2164	} else {
2165		templinfo["TopHID"] = wanted
2166	}
2167	reverbolate(userid, honks)
2168	templinfo["Honks"] = honks
2169	templinfo["MapLink"] = getmaplink(u)
2170	w.Header().Set("Content-Type", "text/html; charset=utf-8")
2171	err := readviews.Execute(w, "honkfrags.html", templinfo)
2172	if err != nil {
2173		log.Printf("frag error: %s", err)
2174	}
2175}
2176
2177var honkline = make(chan bool)
2178
2179func honkhonkline() {
2180	for {
2181		select {
2182		case honkline <- true:
2183		default:
2184			return
2185		}
2186	}
2187}
2188
2189func apihandler(w http.ResponseWriter, r *http.Request) {
2190	u := login.GetUserInfo(r)
2191	userid := u.UserID
2192	user, _ := butwhatabout(u.Username)
2193	action := r.FormValue("action")
2194	wait, _ := strconv.ParseInt(r.FormValue("wait"), 10, 0)
2195	log.Printf("api request '%s' on behalf of %s", action, u.Username)
2196	switch action {
2197	case "honk":
2198		submithonk(w, r, true)
2199	case "gethonks":
2200		var honks []*Honk
2201		wanted, _ := strconv.ParseInt(r.FormValue("after"), 10, 0)
2202		page := r.FormValue("page")
2203		var waitchan <-chan time.Time
2204	requery:
2205		switch page {
2206		case "atme":
2207			honks = gethonksforme(userid, wanted)
2208			honks = osmosis(honks, userid, false)
2209		case "home":
2210			honks = gethonksforuser(userid, wanted)
2211			honks = osmosis(honks, userid, true)
2212		default:
2213			http.Error(w, "unknown page", http.StatusNotFound)
2214			return
2215		}
2216		if len(honks) == 0 && wait > 0 {
2217			if waitchan == nil {
2218				waitchan = time.After(time.Duration(wait) * time.Second)
2219			}
2220			select {
2221			case <-honkline:
2222				goto requery
2223			case <-waitchan:
2224			}
2225		}
2226		reverbolate(userid, honks)
2227		j := junk.New()
2228		j["honks"] = honks
2229		j.Write(w)
2230	case "sendactivity":
2231		public := r.FormValue("public") == "1"
2232		rcpts := boxuprcpts(user, r.Form["rcpt"], public)
2233		msg := []byte(r.FormValue("msg"))
2234		for rcpt := range rcpts {
2235			go deliverate(0, userid, rcpt, msg)
2236		}
2237	default:
2238		http.Error(w, "unknown action", http.StatusNotFound)
2239		return
2240	}
2241}
2242
2243var endoftheworld = make(chan bool)
2244var readyalready = make(chan bool)
2245
2246func enditall() {
2247	sig := make(chan os.Signal)
2248	signal.Notify(sig, os.Interrupt)
2249	signal.Notify(sig, syscall.SIGTERM)
2250	<-sig
2251	count := 0
2252	log.Printf("stopping...")
2253sendloop:
2254	for {
2255		select {
2256		case endoftheworld <- true:
2257			count++
2258		default:
2259			break sendloop
2260		}
2261	}
2262	log.Printf("waiting...")
2263	for i := 0; i < count; i++ {
2264		<-readyalready
2265	}
2266	log.Printf("apocalypse")
2267	os.Exit(0)
2268}
2269
2270var preservehooks []func()
2271
2272func serve() {
2273	db := opendatabase()
2274	login.Init(db)
2275
2276	listener, err := openListener()
2277	if err != nil {
2278		log.Fatal(err)
2279	}
2280	startBackendServer()
2281	go enditall()
2282	go redeliverator()
2283	go tracker()
2284
2285	getconfig("debug", &debugMode)
2286	readviews = templates.Load(debugMode,
2287		viewDir+"/views/honkpage.html",
2288		viewDir+"/views/honkfrags.html",
2289		viewDir+"/views/honkers.html",
2290		viewDir+"/views/hfcs.html",
2291		viewDir+"/views/combos.html",
2292		viewDir+"/views/honkform.html",
2293		viewDir+"/views/honk.html",
2294		viewDir+"/views/account.html",
2295		viewDir+"/views/about.html",
2296		viewDir+"/views/funzone.html",
2297		viewDir+"/views/login.html",
2298		viewDir+"/views/xzone.html",
2299		viewDir+"/views/msg.html",
2300		viewDir+"/views/header.html",
2301		viewDir+"/views/onts.html",
2302		viewDir+"/views/honkpage.js",
2303	)
2304	if !debugMode {
2305		assets := []string{viewDir + "/views/style.css", dataDir + "/views/local.css", viewDir + "/views/honkpage.js"}
2306		for _, s := range assets {
2307			savedassetparams[s] = getassetparam(s)
2308		}
2309		loadAvatarColors()
2310	}
2311
2312	for _, h := range preservehooks {
2313		h()
2314	}
2315
2316	mux := mux.NewRouter()
2317	mux.Use(login.Checker)
2318
2319	mux.Handle("/api", login.TokenRequired(http.HandlerFunc(apihandler)))
2320
2321	posters := mux.Methods("POST").Subrouter()
2322	getters := mux.Methods("GET").Subrouter()
2323
2324	getters.HandleFunc("/", homepage)
2325	getters.HandleFunc("/home", homepage)
2326	getters.HandleFunc("/front", homepage)
2327	getters.HandleFunc("/events", homepage)
2328	getters.HandleFunc("/robots.txt", nomoroboto)
2329	getters.HandleFunc("/rss", showrss)
2330	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
2331	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showonehonk)
2332	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
2333	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
2334	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
2335	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
2336	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
2337	getters.HandleFunc("/a", avatate)
2338	getters.HandleFunc("/o", thelistingoftheontologies)
2339	getters.HandleFunc("/o/{name:.+}", showontology)
2340	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
2341	getters.HandleFunc("/emu/{emu:[^.]*[^/]+}", serveemu)
2342	getters.HandleFunc("/meme/{meme:[^.]*[^/]+}", servememe)
2343	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
2344
2345	getters.HandleFunc("/server", serveractor)
2346	posters.HandleFunc("/server/inbox", serverinbox)
2347
2348	getters.HandleFunc("/style.css", serveasset)
2349	getters.HandleFunc("/local.css", serveasset)
2350	getters.HandleFunc("/honkpage.js", serveasset)
2351	getters.HandleFunc("/about", servehtml)
2352	getters.HandleFunc("/login", servehtml)
2353	posters.HandleFunc("/dologin", login.LoginFunc)
2354	getters.HandleFunc("/logout", login.LogoutFunc)
2355	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
2356
2357	loggedin := mux.NewRoute().Subrouter()
2358	loggedin.Use(login.Required)
2359	loggedin.HandleFunc("/first", homepage)
2360	loggedin.HandleFunc("/saved", homepage)
2361	loggedin.HandleFunc("/account", accountpage)
2362	loggedin.HandleFunc("/funzone", showfunzone)
2363	loggedin.HandleFunc("/chpass", dochpass)
2364	loggedin.HandleFunc("/atme", homepage)
2365	loggedin.HandleFunc("/hfcs", hfcspage)
2366	loggedin.HandleFunc("/xzone", xzone)
2367	loggedin.HandleFunc("/newhonk", newhonkpage)
2368	loggedin.HandleFunc("/edit", edithonkpage)
2369	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitwebhonk)))
2370	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
2371	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
2372	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
2373	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
2374	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
2375	loggedin.HandleFunc("/honkers", showhonkers)
2376	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
2377	loggedin.HandleFunc("/h", showhonker)
2378	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
2379	loggedin.HandleFunc("/c", showcombos)
2380	loggedin.HandleFunc("/t", showconvoy)
2381	loggedin.HandleFunc("/q", showsearch)
2382	loggedin.HandleFunc("/hydra", webhydra)
2383	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
2384
2385	err = http.Serve(listener, mux)
2386	if err != nil {
2387		log.Fatal(err)
2388	}
2389}