all repos — honk @ 248a1d37b15ad9fd91f175a8ba14e397fafa6329

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	"sort"
  30	"strconv"
  31	"strings"
  32	"time"
  33
  34	"github.com/gorilla/mux"
  35	"humungus.tedunangst.com/r/webs/cache"
  36	"humungus.tedunangst.com/r/webs/css"
  37	"humungus.tedunangst.com/r/webs/htfilter"
  38	"humungus.tedunangst.com/r/webs/httpsig"
  39	"humungus.tedunangst.com/r/webs/image"
  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
  51func getuserstyle(u *login.UserInfo) template.CSS {
  52	if u == nil {
  53		return ""
  54	}
  55	user, _ := butwhatabout(u.Username)
  56	if user.SkinnyCSS {
  57		return "main { max-width: 700px; }"
  58	}
  59	return ""
  60}
  61
  62func getInfo(r *http.Request) map[string]interface{} {
  63	u := login.GetUserInfo(r)
  64	templinfo := make(map[string]interface{})
  65	templinfo["StyleParam"] = getassetparam("views/style.css")
  66	templinfo["LocalStyleParam"] = getassetparam("views/local.css")
  67	templinfo["JSParam"] = getassetparam("views/honkpage.js")
  68	templinfo["UserStyle"] = getuserstyle(u)
  69	templinfo["ServerName"] = serverName
  70	templinfo["IconName"] = iconName
  71	templinfo["UserInfo"] = u
  72	templinfo["UserSep"] = userSep
  73	if u != nil {
  74		var combos []string
  75		combocache.Get(u.UserID, &combos)
  76		templinfo["Combos"] = combos
  77	}
  78	return templinfo
  79}
  80
  81func homepage(w http.ResponseWriter, r *http.Request) {
  82	templinfo := getInfo(r)
  83	u := login.GetUserInfo(r)
  84	var honks []*Honk
  85	var userid int64 = -1
  86
  87	templinfo["ServerMessage"] = serverMsg
  88	if u == nil {
  89		switch r.URL.Path {
  90		case "/events":
  91			honks = geteventhonks(userid)
  92			templinfo["ServerMessage"] = "some recent and upcoming events"
  93		default:
  94			templinfo["ShowRSS"] = true
  95			honks = getpublichonks()
  96		}
  97	} else {
  98		userid = u.UserID
  99		switch r.URL.Path {
 100		case "/atme":
 101			templinfo["PageName"] = "at me!"
 102			templinfo["PageName"] = "atme"
 103			honks = gethonksforme(userid)
 104		case "/events":
 105			templinfo["ServerMessage"] = "some recent and upcoming events"
 106			templinfo["PageName"] = "events"
 107			honks = geteventhonks(userid)
 108			honks = osmosis(honks, userid)
 109		case "/first":
 110			templinfo["PageName"] = "first"
 111			honks = gethonksforuser(userid)
 112			honks = osmosis(honks, userid)
 113		case "/saved":
 114			templinfo["ServerMessage"] = "saved honks"
 115			templinfo["PageName"] = "saved"
 116			honks = getsavedhonks(userid)
 117		default:
 118			templinfo["PageName"] = "home"
 119			honks = gethonksforuser(userid)
 120			honks = osmosis(honks, userid)
 121		}
 122		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 123	}
 124
 125	honkpage(w, u, honks, templinfo)
 126}
 127
 128func showfunzone(w http.ResponseWriter, r *http.Request) {
 129	var emunames, memenames []string
 130	dir, err := os.Open("emus")
 131	if err == nil {
 132		emunames, _ = dir.Readdirnames(0)
 133		dir.Close()
 134	}
 135	for i, e := range emunames {
 136		if len(e) > 4 {
 137			emunames[i] = e[:len(e)-4]
 138		}
 139	}
 140	dir, err = os.Open("memes")
 141	if err == nil {
 142		memenames, _ = dir.Readdirnames(0)
 143		dir.Close()
 144	}
 145	templinfo := getInfo(r)
 146	templinfo["Emus"] = emunames
 147	templinfo["Memes"] = memenames
 148	err = readviews.Execute(w, "funzone.html", templinfo)
 149	if err != nil {
 150		log.Print(err)
 151	}
 152}
 153
 154func showrss(w http.ResponseWriter, r *http.Request) {
 155	name := mux.Vars(r)["name"]
 156
 157	var honks []*Honk
 158	if name != "" {
 159		honks = gethonksbyuser(name, false)
 160	} else {
 161		honks = getpublichonks()
 162	}
 163	if len(honks) > 20 {
 164		honks = honks[0:20]
 165	}
 166	reverbolate(-1, honks)
 167
 168	home := fmt.Sprintf("https://%s/", serverName)
 169	base := home
 170	if name != "" {
 171		home += "u/" + name
 172		name += " "
 173	}
 174	feed := rss.Feed{
 175		Title:       name + "honk",
 176		Link:        home,
 177		Description: name + "honk rss",
 178		Image: &rss.Image{
 179			URL:   base + "icon.png",
 180			Title: name + "honk rss",
 181			Link:  home,
 182		},
 183	}
 184	var modtime time.Time
 185	for _, honk := range honks {
 186		if !firstclass(honk) {
 187			continue
 188		}
 189		desc := string(honk.HTML)
 190		if t := honk.Time; t != nil {
 191			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 192			if t.Duration != 0 {
 193				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 194			}
 195		}
 196		if p := honk.Place; p != nil {
 197			desc += string(templates.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 198				p.Url, p.Name, p.Latitude, p.Longitude))
 199		}
 200		for _, d := range honk.Donks {
 201			desc += string(templates.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 202				d.URL, d.Name))
 203		}
 204
 205		feed.Items = append(feed.Items, &rss.Item{
 206			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 207			Description: rss.CData{Data: desc},
 208			Link:        honk.URL,
 209			PubDate:     honk.Date.Format(time.RFC1123),
 210			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 211		})
 212		if honk.Date.After(modtime) {
 213			modtime = honk.Date
 214		}
 215	}
 216	w.Header().Set("Cache-Control", "max-age=300")
 217	w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 218
 219	err := feed.Write(w)
 220	if err != nil {
 221		log.Printf("error writing rss: %s", err)
 222	}
 223}
 224
 225func crappola(j junk.Junk) bool {
 226	t, _ := j.GetString("type")
 227	a, _ := j.GetString("actor")
 228	o, _ := j.GetString("object")
 229	if t == "Delete" && a == o {
 230		log.Printf("crappola from %s", a)
 231		return true
 232	}
 233	return false
 234}
 235
 236func ping(user *WhatAbout, who string) {
 237	var box *Box
 238	ok := boxofboxes.Get(who, &box)
 239	if !ok {
 240		log.Printf("no inbox to ping %s", who)
 241		return
 242	}
 243	j := junk.New()
 244	j["@context"] = itiswhatitis
 245	j["type"] = "Ping"
 246	j["id"] = user.URL + "/ping/" + xfiltrate()
 247	j["actor"] = user.URL
 248	j["to"] = who
 249	keyname, key := ziggy(user.Name)
 250	err := PostJunk(keyname, key, box.In, j)
 251	if err != nil {
 252		log.Printf("can't send ping: %s", err)
 253		return
 254	}
 255	log.Printf("sent ping to %s: %s", who, j["id"])
 256}
 257
 258func pong(user *WhatAbout, who string, obj string) {
 259	var box *Box
 260	ok := boxofboxes.Get(who, &box)
 261	if !ok {
 262		log.Printf("no inbox to pong %s", who)
 263		return
 264	}
 265	j := junk.New()
 266	j["@context"] = itiswhatitis
 267	j["type"] = "Pong"
 268	j["id"] = user.URL + "/pong/" + xfiltrate()
 269	j["actor"] = user.URL
 270	j["to"] = who
 271	j["object"] = obj
 272	keyname, key := ziggy(user.Name)
 273	err := PostJunk(keyname, key, box.In, j)
 274	if err != nil {
 275		log.Printf("can't send pong: %s", err)
 276		return
 277	}
 278}
 279
 280func inbox(w http.ResponseWriter, r *http.Request) {
 281	name := mux.Vars(r)["name"]
 282	user, err := butwhatabout(name)
 283	if err != nil {
 284		http.NotFound(w, r)
 285		return
 286	}
 287	if stealthmode(user.ID, r) {
 288		http.NotFound(w, r)
 289		return
 290	}
 291	var buf bytes.Buffer
 292	io.Copy(&buf, r.Body)
 293	payload := buf.Bytes()
 294	j, err := junk.Read(bytes.NewReader(payload))
 295	if err != nil {
 296		log.Printf("bad payload: %s", err)
 297		io.WriteString(os.Stdout, "bad payload\n")
 298		os.Stdout.Write(payload)
 299		io.WriteString(os.Stdout, "\n")
 300		return
 301	}
 302	if crappola(j) {
 303		return
 304	}
 305	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 306	if err != nil {
 307		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 308		if keyname != "" {
 309			log.Printf("bad signature from %s", keyname)
 310			io.WriteString(os.Stdout, "bad payload\n")
 311			os.Stdout.Write(payload)
 312			io.WriteString(os.Stdout, "\n")
 313		}
 314		http.Error(w, "what did you call me?", http.StatusTeapot)
 315		return
 316	}
 317	what, _ := j.GetString("type")
 318	if what == "Like" {
 319		return
 320	}
 321	who, _ := j.GetString("actor")
 322	origin := keymatch(keyname, who)
 323	if origin == "" {
 324		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 325		return
 326	}
 327	if rejectactor(user.ID, who) {
 328		return
 329	}
 330	switch what {
 331	case "Ping":
 332		obj, _ := j.GetString("id")
 333		log.Printf("ping from %s: %s", who, obj)
 334		pong(user, who, obj)
 335	case "Pong":
 336		obj, _ := j.GetString("object")
 337		log.Printf("pong from %s: %s", who, obj)
 338	case "Follow":
 339		obj, _ := j.GetString("object")
 340		if obj == user.URL {
 341			log.Printf("updating honker follow: %s", who)
 342
 343			db := opendatabase()
 344			row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('dub', 'undub')", who, user.ID)
 345			var x string
 346			err = row.Scan(&x)
 347			if err != sql.ErrNoRows {
 348				log.Printf("duplicate follow request: %s", who)
 349				_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, "undub")
 350				if err != nil {
 351					log.Printf("error updating honker: %s", err)
 352				}
 353			} else {
 354				stmtSaveDub.Exec(user.ID, who, who, "dub")
 355			}
 356			go rubadubdub(user, j)
 357		} else {
 358			log.Printf("can't follow %s", obj)
 359		}
 360	case "Accept":
 361		log.Printf("updating honker accept: %s", who)
 362		_, err = stmtUpdateFlavor.Exec("sub", user.ID, who, "presub")
 363		if err != nil {
 364			log.Printf("error updating honker: %s", err)
 365			return
 366		}
 367	case "Update":
 368		obj, ok := j.GetMap("object")
 369		if ok {
 370			what, _ := obj.GetString("type")
 371			switch what {
 372			case "Person":
 373				return
 374			case "Question":
 375				return
 376			case "Note":
 377				go xonksaver(user, j, origin)
 378				return
 379			}
 380		}
 381		log.Printf("unknown Update activity")
 382		fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 383		j.Write(fd)
 384		io.WriteString(fd, "\n")
 385		fd.Close()
 386
 387	case "Undo":
 388		obj, ok := j.GetMap("object")
 389		if !ok {
 390			log.Printf("unknown undo no object")
 391		} else {
 392			what, _ := obj.GetString("type")
 393			switch what {
 394			case "Follow":
 395				log.Printf("updating honker undo: %s", who)
 396				_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, "dub")
 397				if err != nil {
 398					log.Printf("error updating honker: %s", err)
 399					return
 400				}
 401			case "Announce":
 402				xid, _ := obj.GetString("object")
 403				log.Printf("undo announce: %s", xid)
 404			case "Like":
 405			default:
 406				log.Printf("unknown undo: %s", what)
 407			}
 408		}
 409	default:
 410		go xonksaver(user, j, origin)
 411	}
 412}
 413
 414func ximport(w http.ResponseWriter, r *http.Request) {
 415	u := login.GetUserInfo(r)
 416	xid := strings.TrimSpace(r.FormValue("xid"))
 417	xonk := getxonk(u.UserID, xid)
 418	if xonk == nil {
 419		p, _ := investigate(xid)
 420		if p != nil {
 421			xid = p.XID
 422		}
 423		j, err := GetJunk(xid)
 424		if err != nil {
 425			http.Error(w, "error getting external object", http.StatusInternalServerError)
 426			log.Printf("error getting external object: %s", err)
 427			return
 428		}
 429		log.Printf("importing %s", xid)
 430		user, _ := butwhatabout(u.Username)
 431
 432		what, _ := j.GetString("type")
 433		if isactor(what) {
 434			outbox, _ := j.GetString("outbox")
 435			gimmexonks(user, outbox)
 436			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 437			return
 438		}
 439		xonk = xonksaver(user, j, originate(xid))
 440	}
 441	convoy := ""
 442	if xonk != nil {
 443		convoy = xonk.Convoy
 444	}
 445	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 446}
 447
 448func xzone(w http.ResponseWriter, r *http.Request) {
 449	u := login.GetUserInfo(r)
 450	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 451	if err != nil {
 452		log.Printf("query err: %s", err)
 453		return
 454	}
 455	defer rows.Close()
 456	var honkers []Honker
 457	for rows.Next() {
 458		var xid string
 459		rows.Scan(&xid)
 460		honkers = append(honkers, Honker{XID: xid})
 461	}
 462	rows.Close()
 463	for i, _ := range honkers {
 464		_, honkers[i].Handle = handles(honkers[i].XID)
 465	}
 466	templinfo := getInfo(r)
 467	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 468	templinfo["Honkers"] = honkers
 469	err = readviews.Execute(w, "xzone.html", templinfo)
 470	if err != nil {
 471		log.Print(err)
 472	}
 473}
 474
 475var oldoutbox = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
 476	user, err := butwhatabout(name)
 477	if err != nil {
 478		return nil, false
 479	}
 480	honks := gethonksbyuser(name, false)
 481	if len(honks) > 20 {
 482		honks = honks[0:20]
 483	}
 484
 485	var jonks []junk.Junk
 486	for _, h := range honks {
 487		j, _ := jonkjonk(user, h)
 488		jonks = append(jonks, j)
 489	}
 490
 491	j := junk.New()
 492	j["@context"] = itiswhatitis
 493	j["id"] = user.URL + "/outbox"
 494	j["type"] = "OrderedCollection"
 495	j["totalItems"] = len(jonks)
 496	j["orderedItems"] = jonks
 497
 498	var buf bytes.Buffer
 499	j.Write(&buf)
 500	return buf.Bytes(), true
 501}, Duration: 1 * time.Minute})
 502
 503func outbox(w http.ResponseWriter, r *http.Request) {
 504	name := mux.Vars(r)["name"]
 505	user, err := butwhatabout(name)
 506	if err != nil {
 507		http.NotFound(w, r)
 508		return
 509	}
 510	if stealthmode(user.ID, r) {
 511		http.NotFound(w, r)
 512		return
 513	}
 514	var j []byte
 515	ok := oldoutbox.Get(name, &j)
 516	if ok {
 517		w.Header().Set("Content-Type", theonetruename)
 518		w.Write(j)
 519	} else {
 520		http.NotFound(w, r)
 521	}
 522}
 523
 524func emptiness(w http.ResponseWriter, r *http.Request) {
 525	name := mux.Vars(r)["name"]
 526	user, err := butwhatabout(name)
 527	if err != nil {
 528		http.NotFound(w, r)
 529		return
 530	}
 531	if stealthmode(user.ID, r) {
 532		http.NotFound(w, r)
 533		return
 534	}
 535	colname := "/followers"
 536	if strings.HasSuffix(r.URL.Path, "/following") {
 537		colname = "/following"
 538	}
 539	j := junk.New()
 540	j["@context"] = itiswhatitis
 541	j["id"] = user.URL + colname
 542	j["type"] = "OrderedCollection"
 543	j["totalItems"] = 0
 544	j["orderedItems"] = []junk.Junk{}
 545
 546	w.Header().Set("Content-Type", theonetruename)
 547	j.Write(w)
 548}
 549
 550func showuser(w http.ResponseWriter, r *http.Request) {
 551	name := mux.Vars(r)["name"]
 552	user, err := butwhatabout(name)
 553	if err != nil {
 554		log.Printf("user not found %s: %s", name, err)
 555		http.NotFound(w, r)
 556		return
 557	}
 558	if stealthmode(user.ID, r) {
 559		http.NotFound(w, r)
 560		return
 561	}
 562	if friendorfoe(r.Header.Get("Accept")) {
 563		j, ok := asjonker(name)
 564		if ok {
 565			w.Header().Set("Content-Type", theonetruename)
 566			w.Write(j)
 567		} else {
 568			http.NotFound(w, r)
 569		}
 570		return
 571	}
 572	u := login.GetUserInfo(r)
 573	honks := gethonksbyuser(name, u != nil && u.Username == name)
 574	templinfo := getInfo(r)
 575	filt := htfilter.New()
 576	templinfo["Name"] = user.Name
 577	whatabout := user.About
 578	whatabout = markitzero(user.About)
 579	templinfo["WhatAbout"], _ = filt.String(whatabout)
 580	templinfo["ServerMessage"] = ""
 581	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 582	honkpage(w, u, honks, templinfo)
 583}
 584
 585func showhonker(w http.ResponseWriter, r *http.Request) {
 586	u := login.GetUserInfo(r)
 587	name := mux.Vars(r)["name"]
 588	var honks []*Honk
 589	if name == "" {
 590		name = r.FormValue("xid")
 591		honks = gethonksbyxonker(u.UserID, name)
 592	} else {
 593		honks = gethonksbyhonker(u.UserID, name)
 594	}
 595	msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, name, name)
 596	templinfo := getInfo(r)
 597	templinfo["PageName"] = "honker"
 598	templinfo["PageArg"] = name
 599	templinfo["ServerMessage"] = msg
 600	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 601	honkpage(w, u, honks, templinfo)
 602}
 603
 604func showcombo(w http.ResponseWriter, r *http.Request) {
 605	name := mux.Vars(r)["name"]
 606	u := login.GetUserInfo(r)
 607	honks := gethonksbycombo(u.UserID, name)
 608	honks = osmosis(honks, u.UserID)
 609	templinfo := getInfo(r)
 610	templinfo["PageName"] = "combo"
 611	templinfo["PageArg"] = name
 612	templinfo["ServerMessage"] = "honks by combo: " + name
 613	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 614	honkpage(w, u, honks, templinfo)
 615}
 616func showconvoy(w http.ResponseWriter, r *http.Request) {
 617	c := r.FormValue("c")
 618	u := login.GetUserInfo(r)
 619	honks := gethonksbyconvoy(u.UserID, c)
 620	templinfo := getInfo(r)
 621	if len(honks) > 0 {
 622		templinfo["TopXID"] = honks[0].XID
 623	}
 624	reversehonks(honks)
 625	templinfo["PageName"] = "convoy"
 626	templinfo["PageArg"] = c
 627	templinfo["ServerMessage"] = "honks in convoy: " + c
 628	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 629	honkpage(w, u, honks, templinfo)
 630}
 631func showsearch(w http.ResponseWriter, r *http.Request) {
 632	q := r.FormValue("q")
 633	u := login.GetUserInfo(r)
 634	honks := gethonksbysearch(u.UserID, q)
 635	templinfo := getInfo(r)
 636	templinfo["PageName"] = "search"
 637	templinfo["PageArg"] = q
 638	templinfo["ServerMessage"] = "honks for search: " + q
 639	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 640	honkpage(w, u, honks, templinfo)
 641}
 642func showontology(w http.ResponseWriter, r *http.Request) {
 643	name := mux.Vars(r)["name"]
 644	u := login.GetUserInfo(r)
 645	var userid int64 = -1
 646	if u != nil {
 647		userid = u.UserID
 648	}
 649	honks := gethonksbyontology(userid, "#"+name)
 650	templinfo := getInfo(r)
 651	templinfo["ServerMessage"] = "honks by ontology: " + name
 652	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 653	honkpage(w, u, honks, templinfo)
 654}
 655
 656type Ont struct {
 657	Name  string
 658	Count int64
 659}
 660
 661func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 662	u := login.GetUserInfo(r)
 663	var userid int64 = -1
 664	if u != nil {
 665		userid = u.UserID
 666	}
 667	rows, err := stmtAllOnts.Query(userid)
 668	if err != nil {
 669		log.Printf("selection error: %s", err)
 670		return
 671	}
 672	defer rows.Close()
 673	var onts []Ont
 674	for rows.Next() {
 675		var o Ont
 676		err := rows.Scan(&o.Name, &o.Count)
 677		if err != nil {
 678			log.Printf("error scanning ont: %s", err)
 679			continue
 680		}
 681		if len(o.Name) > 24 {
 682			continue
 683		}
 684		o.Name = o.Name[1:]
 685		onts = append(onts, o)
 686	}
 687	sort.Slice(onts, func(i, j int) bool {
 688		return onts[i].Name < onts[j].Name
 689	})
 690	if u == nil {
 691		w.Header().Set("Cache-Control", "max-age=300")
 692	}
 693	templinfo := getInfo(r)
 694	templinfo["Onts"] = onts
 695	err = readviews.Execute(w, "onts.html", templinfo)
 696	if err != nil {
 697		log.Print(err)
 698	}
 699}
 700
 701func showhonk(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	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
 713
 714	if friendorfoe(r.Header.Get("Accept")) {
 715		j, ok := gimmejonk(xid)
 716		if ok {
 717			w.Header().Set("Content-Type", theonetruename)
 718			w.Write(j)
 719		} else {
 720			http.NotFound(w, r)
 721		}
 722		return
 723	}
 724	honk := getxonk(user.ID, xid)
 725	if honk == nil {
 726		http.NotFound(w, r)
 727		return
 728	}
 729	u := login.GetUserInfo(r)
 730	if u != nil && u.UserID != user.ID {
 731		u = nil
 732	}
 733	if !honk.Public {
 734		if u == nil {
 735			http.NotFound(w, r)
 736			return
 737
 738		}
 739		templinfo := getInfo(r)
 740		templinfo["ServerMessage"] = "one honk maybe more"
 741		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 742		honkpage(w, u, []*Honk{honk}, templinfo)
 743		return
 744	}
 745	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy)
 746	reversehonks(rawhonks)
 747	var honks []*Honk
 748	for _, h := range rawhonks {
 749		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
 750			honks = append(honks, h)
 751		}
 752	}
 753
 754	templinfo := getInfo(r)
 755	templinfo["ServerMessage"] = "one honk maybe more"
 756	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 757	honkpage(w, u, honks, templinfo)
 758}
 759
 760func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
 761	var userid int64 = -1
 762	if u != nil {
 763		userid = u.UserID
 764	}
 765	if u == nil {
 766		w.Header().Set("Cache-Control", "max-age=60")
 767	}
 768	reverbolate(userid, honks)
 769	templinfo["Honks"] = honks
 770	if templinfo["TopXID"] == nil && len(honks) > 0 {
 771		templinfo["TopXID"] = honks[0].XID
 772	}
 773	err := readviews.Execute(w, "honkpage.html", templinfo)
 774	if err != nil {
 775		log.Print(err)
 776	}
 777}
 778
 779func saveuser(w http.ResponseWriter, r *http.Request) {
 780	whatabout := r.FormValue("whatabout")
 781	u := login.GetUserInfo(r)
 782	db := opendatabase()
 783	options := ""
 784	if r.FormValue("skinny") == "skinny" {
 785		options += " skinny "
 786	}
 787	_, err := db.Exec("update users set about = ?, options = ? where username = ?", whatabout, options, u.Username)
 788	if err != nil {
 789		log.Printf("error bouting what: %s", err)
 790	}
 791	someusers.Clear(u.Username)
 792
 793	http.Redirect(w, r, "/account", http.StatusSeeOther)
 794}
 795
 796func submitbonk(w http.ResponseWriter, r *http.Request) {
 797	xid := r.FormValue("xid")
 798	userinfo := login.GetUserInfo(r)
 799	user, _ := butwhatabout(userinfo.Username)
 800
 801	log.Printf("bonking %s", xid)
 802
 803	xonk := getxonk(userinfo.UserID, xid)
 804	if xonk == nil {
 805		return
 806	}
 807	if !xonk.Public {
 808		return
 809	}
 810	donksforhonks([]*Honk{xonk})
 811
 812	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
 813	if err != nil {
 814		log.Printf("error acking bonk: %s", err)
 815	}
 816
 817	oonker := xonk.Oonker
 818	if oonker == "" {
 819		oonker = xonk.Honker
 820	}
 821	dt := time.Now().UTC()
 822	bonk := &Honk{
 823		UserID:   userinfo.UserID,
 824		Username: userinfo.Username,
 825		What:     "bonk",
 826		Honker:   user.URL,
 827		Oonker:   oonker,
 828		XID:      xonk.XID,
 829		RID:      xonk.RID,
 830		Noise:    xonk.Noise,
 831		Precis:   xonk.Precis,
 832		URL:      xonk.URL,
 833		Date:     dt,
 834		Donks:    xonk.Donks,
 835		Whofore:  2,
 836		Convoy:   xonk.Convoy,
 837		Audience: []string{thewholeworld, oonker},
 838		Public:   true,
 839		Format:   "html",
 840	}
 841
 842	err = savehonk(bonk)
 843	if err != nil {
 844		log.Printf("uh oh")
 845		return
 846	}
 847
 848	go honkworldwide(user, bonk)
 849
 850	if r.FormValue("js") != "1" {
 851		templinfo := getInfo(r)
 852		templinfo["ServerMessage"] = "Bonked!"
 853		err = readviews.Execute(w, "msg.html", templinfo)
 854		if err != nil {
 855			log.Print(err)
 856		}
 857	}
 858}
 859
 860func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string) {
 861	zonk := &Honk{
 862		What:     what,
 863		XID:      xonk.XID,
 864		Date:     time.Now().UTC(),
 865		Audience: oneofakind(xonk.Audience),
 866	}
 867	zonk.Public = !keepitquiet(zonk.Audience)
 868
 869	log.Printf("announcing %sed honk: %s", what, xonk.XID)
 870	go honkworldwide(user, zonk)
 871}
 872
 873func zonkit(w http.ResponseWriter, r *http.Request) {
 874	wherefore := r.FormValue("wherefore")
 875	what := r.FormValue("what")
 876	userinfo := login.GetUserInfo(r)
 877	user, _ := butwhatabout(userinfo.Username)
 878
 879	if wherefore == "save" {
 880		xonk := getxonk(userinfo.UserID, what)
 881		if xonk != nil {
 882			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
 883			if err != nil {
 884				log.Printf("error saving: %s", err)
 885			}
 886		}
 887		return
 888	}
 889
 890	if wherefore == "unsave" {
 891		xonk := getxonk(userinfo.UserID, what)
 892		if xonk != nil {
 893			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
 894			if err != nil {
 895				log.Printf("error unsaving: %s", err)
 896			}
 897		}
 898		return
 899	}
 900
 901	// my hammer is too big, oh well
 902	defer oldjonks.Flush()
 903
 904	if wherefore == "ack" {
 905		xonk := getxonk(userinfo.UserID, what)
 906		if xonk != nil {
 907			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
 908			if err != nil {
 909				log.Printf("error acking: %s", err)
 910			}
 911			sendzonkofsorts(xonk, user, "ack")
 912		}
 913		return
 914	}
 915
 916	if wherefore == "deack" {
 917		xonk := getxonk(userinfo.UserID, what)
 918		if xonk != nil {
 919			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
 920			if err != nil {
 921				log.Printf("error deacking: %s", err)
 922			}
 923			sendzonkofsorts(xonk, user, "deack")
 924		}
 925		return
 926	}
 927
 928	if wherefore == "unbonk" {
 929		xonk := getbonk(userinfo.UserID, what)
 930		if xonk != nil {
 931			deletehonk(xonk.ID)
 932			xonk = getxonk(userinfo.UserID, what)
 933			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
 934			if err != nil {
 935				log.Printf("error unbonking: %s", err)
 936			}
 937			sendzonkofsorts(xonk, user, "unbonk")
 938		}
 939		return
 940	}
 941
 942	log.Printf("zonking %s %s", wherefore, what)
 943	if wherefore == "zonk" {
 944		xonk := getxonk(userinfo.UserID, what)
 945		if xonk != nil {
 946			deletehonk(xonk.ID)
 947			if xonk.Whofore == 2 || xonk.Whofore == 3 {
 948				sendzonkofsorts(xonk, user, "zonk")
 949			}
 950		}
 951	}
 952	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
 953	if err != nil {
 954		log.Printf("error saving zonker: %s", err)
 955		return
 956	}
 957}
 958
 959func edithonkpage(w http.ResponseWriter, r *http.Request) {
 960	u := login.GetUserInfo(r)
 961	user, _ := butwhatabout(u.Username)
 962	xid := r.FormValue("xid")
 963	honk := getxonk(u.UserID, xid)
 964	if !canedithonk(user, honk) {
 965		http.Error(w, "no editing that please", http.StatusInternalServerError)
 966		return
 967	}
 968
 969	noise := honk.Noise
 970	if honk.Precis != "" {
 971		noise = honk.Precis + "\n\n" + noise
 972	}
 973
 974	honks := []*Honk{honk}
 975	donksforhonks(honks)
 976	reverbolate(u.UserID, honks)
 977	templinfo := getInfo(r)
 978	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 979	templinfo["Honks"] = honks
 980	templinfo["Noise"] = noise
 981	templinfo["ServerMessage"] = "honk edit"
 982	templinfo["IsPreview"] = true
 983	templinfo["UpdateXID"] = honk.XID
 984	if len(honk.Donks) > 0 {
 985		templinfo["SavedFile"] = honk.Donks[0].XID
 986	}
 987	err := readviews.Execute(w, "honkpage.html", templinfo)
 988	if err != nil {
 989		log.Print(err)
 990	}
 991}
 992
 993func newhonkpage(w http.ResponseWriter, r *http.Request) {
 994	u := login.GetUserInfo(r)
 995	rid := r.FormValue("rid")
 996	noise := ""
 997
 998	xonk := getxonk(u.UserID, rid)
 999	if xonk != nil {
1000		_, replto := handles(xonk.Honker)
1001		if replto != "" {
1002			noise = "@" + replto + " "
1003		}
1004	}
1005
1006	templinfo := getInfo(r)
1007	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1008	templinfo["InReplyTo"] = rid
1009	templinfo["Noise"] = noise
1010	templinfo["ServerMessage"] = "compose honk"
1011	templinfo["IsPreview"] = true
1012	err := readviews.Execute(w, "honkpage.html", templinfo)
1013	if err != nil {
1014		log.Print(err)
1015	}
1016}
1017
1018func canedithonk(user *WhatAbout, honk *Honk) bool {
1019	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1020		return false
1021	}
1022	return true
1023}
1024
1025// what a hot mess this function is
1026func submithonk(w http.ResponseWriter, r *http.Request) {
1027	rid := r.FormValue("rid")
1028	noise := r.FormValue("noise")
1029
1030	userinfo := login.GetUserInfo(r)
1031	user, _ := butwhatabout(userinfo.Username)
1032
1033	dt := time.Now().UTC()
1034	updatexid := r.FormValue("updatexid")
1035	var honk *Honk
1036	if updatexid != "" {
1037		honk = getxonk(userinfo.UserID, updatexid)
1038		if !canedithonk(user, honk) {
1039			http.Error(w, "no editing that please", http.StatusInternalServerError)
1040			return
1041		}
1042		honk.Date = dt
1043		honk.What = "update"
1044		honk.Format = "markdown"
1045	} else {
1046		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1047		what := "honk"
1048		if rid != "" {
1049			what = "tonk"
1050		}
1051		honk = &Honk{
1052			UserID:   userinfo.UserID,
1053			Username: userinfo.Username,
1054			What:     what,
1055			Honker:   user.URL,
1056			XID:      xid,
1057			Date:     dt,
1058			Format:   "markdown",
1059		}
1060	}
1061
1062	noise = hooterize(noise)
1063	honk.Noise = noise
1064	translate(honk)
1065
1066	var convoy string
1067	if rid != "" {
1068		xonk := getxonk(userinfo.UserID, rid)
1069		if xonk != nil {
1070			if xonk.Public {
1071				honk.Audience = append(honk.Audience, xonk.Audience...)
1072			}
1073			convoy = xonk.Convoy
1074		} else {
1075			xonkaud, c := whosthere(rid)
1076			honk.Audience = append(honk.Audience, xonkaud...)
1077			convoy = c
1078		}
1079		for i, a := range honk.Audience {
1080			if a == thewholeworld {
1081				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1082				break
1083			}
1084		}
1085		honk.RID = rid
1086	} else {
1087		honk.Audience = []string{thewholeworld}
1088	}
1089	if honk.Noise != "" && honk.Noise[0] == '@' {
1090		honk.Audience = append(grapevine(honk.Noise), honk.Audience...)
1091	} else {
1092		honk.Audience = append(honk.Audience, grapevine(honk.Noise)...)
1093	}
1094
1095	if convoy == "" {
1096		convoy = "data:,electrichonkytonk-" + xfiltrate()
1097	}
1098	butnottooloud(honk.Audience)
1099	honk.Audience = oneofakind(honk.Audience)
1100	if len(honk.Audience) == 0 {
1101		log.Printf("honk to nowhere")
1102		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1103		return
1104	}
1105	honk.Public = !keepitquiet(honk.Audience)
1106	honk.Convoy = convoy
1107
1108	donkxid := r.FormValue("donkxid")
1109	if donkxid == "" {
1110		file, filehdr, err := r.FormFile("donk")
1111		if err == nil {
1112			var buf bytes.Buffer
1113			io.Copy(&buf, file)
1114			file.Close()
1115			data := buf.Bytes()
1116			xid := xfiltrate()
1117			var media, name string
1118			img, err := image.Vacuum(&buf, image.Params{MaxWidth: 2048, MaxHeight: 2048})
1119			if err == nil {
1120				data = img.Data
1121				format := img.Format
1122				media = "image/" + format
1123				if format == "jpeg" {
1124					format = "jpg"
1125				}
1126				name = xid + "." + format
1127				xid = name
1128			} else {
1129				maxsize := 100000
1130				if len(data) > maxsize {
1131					log.Printf("bad image: %s too much text: %d", err, len(data))
1132					http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1133					return
1134				}
1135				for i := 0; i < len(data); i++ {
1136					if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1137						log.Printf("bad image: %s not text: %d", err, data[i])
1138						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1139						return
1140					}
1141				}
1142				media = "text/plain"
1143				name = filehdr.Filename
1144				if name == "" {
1145					name = xid + ".txt"
1146				}
1147				xid += ".txt"
1148			}
1149			desc := strings.TrimSpace(r.FormValue("donkdesc"))
1150			if desc == "" {
1151				desc = name
1152			}
1153			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1154			fileid, err := savefile(xid, name, desc, url, media, true, data)
1155			if err != nil {
1156				log.Printf("unable to save image: %s", err)
1157				return
1158			}
1159			var d Donk
1160			d.FileID = fileid
1161			d.XID = xid
1162			d.Desc = desc
1163			d.URL = url
1164			d.Local = true
1165			honk.Donks = append(honk.Donks, &d)
1166			donkxid = xid
1167		}
1168	} else {
1169		xid := donkxid
1170		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1171		donk := finddonk(url)
1172		if donk != nil {
1173			honk.Donks = append(honk.Donks, donk)
1174		} else {
1175			log.Printf("can't find file: %s", xid)
1176		}
1177	}
1178	herd := herdofemus(honk.Noise)
1179	for _, e := range herd {
1180		donk := savedonk(e.ID, e.Name, e.Name, "image/png", true)
1181		if donk != nil {
1182			donk.Name = e.Name
1183			honk.Donks = append(honk.Donks, donk)
1184		}
1185	}
1186	memetize(honk)
1187
1188	placename := strings.TrimSpace(r.FormValue("placename"))
1189	placelat := strings.TrimSpace(r.FormValue("placelat"))
1190	placelong := strings.TrimSpace(r.FormValue("placelong"))
1191	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1192	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1193		p := new(Place)
1194		p.Name = placename
1195		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1196		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1197		p.Url = placeurl
1198		honk.Place = p
1199	}
1200	timestart := strings.TrimSpace(r.FormValue("timestart"))
1201	if timestart != "" {
1202		t := new(Time)
1203		now := time.Now().Local()
1204		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1205			start, err := time.ParseInLocation(layout, timestart, now.Location())
1206			if err == nil {
1207				if start.Year() == 0 {
1208					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1209				}
1210				t.StartTime = start
1211				break
1212			}
1213		}
1214		timeend := r.FormValue("timeend")
1215		dur, err := time.ParseDuration(timeend)
1216		if err == nil {
1217			t.Duration = Duration(dur)
1218		}
1219		if !t.StartTime.IsZero() {
1220			honk.What = "event"
1221			honk.Time = t
1222		}
1223	}
1224
1225	if honk.Public {
1226		honk.Whofore = 2
1227	} else {
1228		honk.Whofore = 3
1229	}
1230
1231	// back to markdown
1232	honk.Noise = noise
1233
1234	if r.FormValue("preview") == "preview" {
1235		honks := []*Honk{honk}
1236		reverbolate(userinfo.UserID, honks)
1237		templinfo := getInfo(r)
1238		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1239		templinfo["Honks"] = honks
1240		templinfo["InReplyTo"] = r.FormValue("rid")
1241		templinfo["Noise"] = r.FormValue("noise")
1242		templinfo["SavedFile"] = donkxid
1243		templinfo["IsPreview"] = true
1244		templinfo["ServerMessage"] = "honk preview"
1245		err := readviews.Execute(w, "honkpage.html", templinfo)
1246		if err != nil {
1247			log.Print(err)
1248		}
1249		return
1250	}
1251
1252	if updatexid != "" {
1253		updatehonk(honk)
1254		oldjonks.Clear(honk.XID)
1255	} else {
1256		err := savehonk(honk)
1257		if err != nil {
1258			log.Printf("uh oh")
1259			return
1260		}
1261	}
1262
1263	// reload for consistency
1264	honk.Donks = nil
1265	donksforhonks([]*Honk{honk})
1266
1267	go honkworldwide(user, honk)
1268
1269	http.Redirect(w, r, honk.XID, http.StatusSeeOther)
1270}
1271
1272func showhonkers(w http.ResponseWriter, r *http.Request) {
1273	userinfo := login.GetUserInfo(r)
1274	templinfo := getInfo(r)
1275	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1276	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1277	err := readviews.Execute(w, "honkers.html", templinfo)
1278	if err != nil {
1279		log.Print(err)
1280	}
1281}
1282
1283var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
1284	honkers := gethonkers(userid)
1285	var combos []string
1286	for _, h := range honkers {
1287		combos = append(combos, h.Combos...)
1288	}
1289	for i, c := range combos {
1290		if c == "-" {
1291			combos[i] = ""
1292		}
1293	}
1294	combos = oneofakind(combos)
1295	sort.Strings(combos)
1296	return combos, true
1297}, Invalidator: &honkerinvalidator})
1298
1299func showcombos(w http.ResponseWriter, r *http.Request) {
1300	userinfo := login.GetUserInfo(r)
1301	var combos []string
1302	combocache.Get(userinfo.UserID, &combos)
1303	templinfo := getInfo(r)
1304	err := readviews.Execute(w, "combos.html", templinfo)
1305	if err != nil {
1306		log.Print(err)
1307	}
1308}
1309
1310func submithonker(w http.ResponseWriter, r *http.Request) {
1311	u := login.GetUserInfo(r)
1312	name := strings.TrimSpace(r.FormValue("name"))
1313	url := strings.TrimSpace(r.FormValue("url"))
1314	peep := r.FormValue("peep")
1315	combos := strings.TrimSpace(r.FormValue("combos"))
1316	combos = " " + combos + " "
1317	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1318
1319	defer honkerinvalidator.Clear(u.UserID)
1320
1321	if honkerid > 0 {
1322		goodbye := r.FormValue("goodbye")
1323		if goodbye == "F" {
1324			db := opendatabase()
1325			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1326				honkerid, u.UserID)
1327			err := row.Scan(&url)
1328			if err != nil {
1329				log.Printf("can't get honker xid: %s", err)
1330				return
1331			}
1332			log.Printf("unsubscribing from %s", url)
1333			user, _ := butwhatabout(u.Username)
1334			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, "sub")
1335			if err != nil {
1336				log.Printf("error updating honker: %s", err)
1337				return
1338			}
1339			go itakeitallback(user, url)
1340
1341			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1342			return
1343		}
1344		if goodbye == "X" {
1345			db := opendatabase()
1346			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep')",
1347				honkerid, u.UserID)
1348			err := row.Scan(&url)
1349			if err != nil {
1350				log.Printf("can't get honker xid: %s", err)
1351				return
1352			}
1353			log.Printf("resubscribing to %s", url)
1354			user, _ := butwhatabout(u.Username)
1355			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, "unsub")
1356			if err == nil {
1357				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, "peep")
1358			}
1359			if err != nil {
1360				log.Printf("error updating honker: %s", err)
1361				return
1362			}
1363			go subsub(user, url)
1364
1365			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1366			return
1367		}
1368		_, err := stmtUpdateHonker.Exec(name, combos, honkerid, u.UserID)
1369		if err != nil {
1370			log.Printf("update honker err: %s", err)
1371			return
1372		}
1373		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1374		return
1375	}
1376
1377	flavor := "presub"
1378	if peep == "peep" {
1379		flavor = "peep"
1380	}
1381	p, err := investigate(url)
1382	if err != nil {
1383		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1384		log.Printf("failed to investigate honker: %s", err)
1385		return
1386	}
1387	url = p.XID
1388
1389	db := opendatabase()
1390	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1391	var x string
1392	err = row.Scan(&x)
1393	if err != sql.ErrNoRows {
1394		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1395		if err != nil {
1396			log.Printf("honker scan err: %s", err)
1397		}
1398		return
1399	}
1400
1401	if name == "" {
1402		name = p.Handle
1403	}
1404	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos)
1405	if err != nil {
1406		log.Print(err)
1407		return
1408	}
1409	if flavor == "presub" {
1410		user, _ := butwhatabout(u.Username)
1411		go subsub(user, url)
1412	}
1413	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1414}
1415
1416func hfcspage(w http.ResponseWriter, r *http.Request) {
1417	userinfo := login.GetUserInfo(r)
1418
1419	filters := getfilters(userinfo.UserID, filtAny)
1420
1421	templinfo := getInfo(r)
1422	templinfo["Filters"] = filters
1423	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1424	err := readviews.Execute(w, "hfcs.html", templinfo)
1425	if err != nil {
1426		log.Print(err)
1427	}
1428}
1429
1430func savehfcs(w http.ResponseWriter, r *http.Request) {
1431	userinfo := login.GetUserInfo(r)
1432	itsok := r.FormValue("itsok")
1433	if itsok == "iforgiveyou" {
1434		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1435		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1436		if err != nil {
1437			log.Printf("error deleting filter: %s", err)
1438		}
1439		filtcache.Clear(userinfo.UserID)
1440		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1441		return
1442	}
1443
1444	filt := new(Filter)
1445	filt.Name = strings.TrimSpace(r.FormValue("name"))
1446	filt.Date = time.Now().UTC()
1447	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
1448	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1449	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
1450	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1451	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
1452	filt.Reject = r.FormValue("doreject") == "yes"
1453	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1454	filt.Hide = r.FormValue("dohide") == "yes"
1455	filt.Collapse = r.FormValue("docollapse") == "yes"
1456	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
1457	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
1458
1459	if filt.Actor == "" && filt.Text == "" {
1460		log.Printf("blank filter")
1461		return
1462	}
1463
1464	j, err := jsonify(filt)
1465	if err == nil {
1466		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1467	}
1468	if err != nil {
1469		log.Printf("error saving filter: %s", err)
1470	}
1471
1472	filtcache.Clear(userinfo.UserID)
1473	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1474}
1475
1476func accountpage(w http.ResponseWriter, r *http.Request) {
1477	u := login.GetUserInfo(r)
1478	user, _ := butwhatabout(u.Username)
1479	templinfo := getInfo(r)
1480	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1481	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1482	templinfo["User"] = user
1483	err := readviews.Execute(w, "account.html", templinfo)
1484	if err != nil {
1485		log.Print(err)
1486	}
1487}
1488
1489func dochpass(w http.ResponseWriter, r *http.Request) {
1490	err := login.ChangePassword(w, r)
1491	if err != nil {
1492		log.Printf("error changing password: %s", err)
1493	}
1494	http.Redirect(w, r, "/account", http.StatusSeeOther)
1495}
1496
1497func fingerlicker(w http.ResponseWriter, r *http.Request) {
1498	orig := r.FormValue("resource")
1499
1500	log.Printf("finger lick: %s", orig)
1501
1502	if strings.HasPrefix(orig, "acct:") {
1503		orig = orig[5:]
1504	}
1505
1506	name := orig
1507	idx := strings.LastIndexByte(name, '/')
1508	if idx != -1 {
1509		name = name[idx+1:]
1510		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
1511			log.Printf("foreign request rejected")
1512			name = ""
1513		}
1514	} else {
1515		idx = strings.IndexByte(name, '@')
1516		if idx != -1 {
1517			name = name[:idx]
1518			if name+"@"+serverName != orig {
1519				log.Printf("foreign request rejected")
1520				name = ""
1521			}
1522		}
1523	}
1524	user, err := butwhatabout(name)
1525	if err != nil {
1526		http.NotFound(w, r)
1527		return
1528	}
1529	if stealthmode(user.ID, r) {
1530		http.NotFound(w, r)
1531		return
1532	}
1533
1534	j := junk.New()
1535	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, serverName)
1536	j["aliases"] = []string{user.URL}
1537	var links []junk.Junk
1538	l := junk.New()
1539	l["rel"] = "self"
1540	l["type"] = `application/activity+json`
1541	l["href"] = user.URL
1542	links = append(links, l)
1543	j["links"] = links
1544
1545	w.Header().Set("Cache-Control", "max-age=3600")
1546	w.Header().Set("Content-Type", "application/jrd+json")
1547	j.Write(w)
1548}
1549
1550func somedays() string {
1551	secs := 432000 + notrand.Int63n(432000)
1552	return fmt.Sprintf("%d", secs)
1553}
1554
1555func avatate(w http.ResponseWriter, r *http.Request) {
1556	n := r.FormValue("a")
1557	a := avatar(n)
1558	w.Header().Set("Cache-Control", "max-age="+somedays())
1559	w.Write(a)
1560}
1561
1562func servecss(w http.ResponseWriter, r *http.Request) {
1563	fd, err := os.Open("views" + r.URL.Path)
1564	if err != nil {
1565		http.NotFound(w, r)
1566		return
1567	}
1568	w.Header().Set("Cache-Control", "max-age=0")
1569	w.Header().Set("Content-Type", "text/css; charset=utf-8")
1570	err = css.Filter(fd, w)
1571	if err != nil {
1572		log.Printf("error filtering css: %s", err)
1573	}
1574}
1575func serveasset(w http.ResponseWriter, r *http.Request) {
1576	w.Header().Set("Cache-Control", "max-age=7776000")
1577	http.ServeFile(w, r, "views"+r.URL.Path)
1578}
1579func servehelp(w http.ResponseWriter, r *http.Request) {
1580	name := mux.Vars(r)["name"]
1581	w.Header().Set("Cache-Control", "max-age=600")
1582	http.ServeFile(w, r, "docs/"+name)
1583}
1584func servehtml(w http.ResponseWriter, r *http.Request) {
1585	templinfo := getInfo(r)
1586	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
1587	if err != nil {
1588		log.Print(err)
1589	}
1590}
1591func serveemu(w http.ResponseWriter, r *http.Request) {
1592	xid := mux.Vars(r)["xid"]
1593	w.Header().Set("Cache-Control", "max-age="+somedays())
1594	http.ServeFile(w, r, "emus/"+xid)
1595}
1596func servememe(w http.ResponseWriter, r *http.Request) {
1597	xid := mux.Vars(r)["xid"]
1598	w.Header().Set("Cache-Control", "max-age="+somedays())
1599	http.ServeFile(w, r, "memes/"+xid)
1600}
1601
1602func servefile(w http.ResponseWriter, r *http.Request) {
1603	xid := mux.Vars(r)["xid"]
1604	row := stmtGetFileData.QueryRow(xid)
1605	var media string
1606	var data []byte
1607	err := row.Scan(&media, &data)
1608	if err != nil {
1609		log.Printf("error loading file: %s", err)
1610		http.NotFound(w, r)
1611		return
1612	}
1613	w.Header().Set("Content-Type", media)
1614	w.Header().Set("X-Content-Type-Options", "nosniff")
1615	w.Header().Set("Cache-Control", "max-age="+somedays())
1616	w.Write(data)
1617}
1618
1619func nomoroboto(w http.ResponseWriter, r *http.Request) {
1620	io.WriteString(w, "User-agent: *\n")
1621	io.WriteString(w, "Disallow: /a\n")
1622	io.WriteString(w, "Disallow: /d\n")
1623	io.WriteString(w, "Disallow: /meme\n")
1624	io.WriteString(w, "Disallow: /o\n")
1625	for _, u := range allusers() {
1626		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
1627	}
1628}
1629
1630func webhydra(w http.ResponseWriter, r *http.Request) {
1631	u := login.GetUserInfo(r)
1632	userid := u.UserID
1633	templinfo := getInfo(r)
1634	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1635	page := r.FormValue("page")
1636	var honks []*Honk
1637	switch page {
1638	case "atme":
1639		honks = gethonksforme(userid)
1640		templinfo["ServerMessage"] = "at me!"
1641	case "home":
1642		honks = gethonksforuser(userid)
1643		honks = osmosis(honks, userid)
1644		templinfo["ServerMessage"] = serverMsg
1645	case "first":
1646		honks = gethonksforuserfirstclass(userid)
1647		honks = osmosis(honks, userid)
1648		templinfo["ServerMessage"] = "first class only"
1649	case "saved":
1650		honks = getsavedhonks(userid)
1651		templinfo["PageName"] = "saved"
1652		templinfo["ServerMessage"] = "saved honks"
1653	case "combo":
1654		c := r.FormValue("c")
1655		honks = gethonksbycombo(userid, c)
1656		honks = osmosis(honks, userid)
1657		templinfo["ServerMessage"] = "honks by combo: " + c
1658	case "convoy":
1659		c := r.FormValue("c")
1660		honks = gethonksbyconvoy(userid, c)
1661		templinfo["ServerMessage"] = "honks in convoy: " + c
1662	case "honker":
1663		xid := r.FormValue("xid")
1664		if strings.IndexByte(xid, '@') != -1 {
1665			xid = gofish(xid)
1666		}
1667		honks = gethonksbyxonker(userid, xid)
1668		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
1669		templinfo["ServerMessage"] = msg
1670	default:
1671		http.NotFound(w, r)
1672	}
1673	if len(honks) > 0 {
1674		templinfo["TopXID"] = honks[0].XID
1675	}
1676	if topxid := r.FormValue("topxid"); topxid != "" {
1677		for i, h := range honks {
1678			if h.XID == topxid {
1679				honks = honks[0:i]
1680				break
1681			}
1682		}
1683		log.Printf("topxid %d frags", len(honks))
1684	}
1685	reverbolate(userid, honks)
1686	templinfo["Honks"] = honks
1687	w.Header().Set("Content-Type", "text/html; charset=utf-8")
1688	err := readviews.Execute(w, "honkfrags.html", templinfo)
1689	if err != nil {
1690		log.Printf("frag error: %s", err)
1691	}
1692}
1693
1694func serve() {
1695	db := opendatabase()
1696	login.Init(db)
1697
1698	listener, err := openListener()
1699	if err != nil {
1700		log.Fatal(err)
1701	}
1702	go redeliverator()
1703
1704	debug := false
1705	getconfig("debug", &debug)
1706	readviews = templates.Load(debug,
1707		"views/honkpage.html",
1708		"views/honkfrags.html",
1709		"views/honkers.html",
1710		"views/hfcs.html",
1711		"views/combos.html",
1712		"views/honkform.html",
1713		"views/honk.html",
1714		"views/account.html",
1715		"views/about.html",
1716		"views/funzone.html",
1717		"views/login.html",
1718		"views/xzone.html",
1719		"views/msg.html",
1720		"views/header.html",
1721		"views/onts.html",
1722		"views/honkpage.js",
1723	)
1724	if !debug {
1725		assets := []string{"views/style.css", "views/local.css", "views/honkpage.js"}
1726		for _, s := range assets {
1727			savedassetparams[s] = getassetparam(s)
1728		}
1729	}
1730
1731	mux := mux.NewRouter()
1732	mux.Use(login.Checker)
1733
1734	posters := mux.Methods("POST").Subrouter()
1735	getters := mux.Methods("GET").Subrouter()
1736
1737	getters.HandleFunc("/", homepage)
1738	getters.HandleFunc("/home", homepage)
1739	getters.HandleFunc("/front", homepage)
1740	getters.HandleFunc("/events", homepage)
1741	getters.HandleFunc("/robots.txt", nomoroboto)
1742	getters.HandleFunc("/rss", showrss)
1743	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
1744	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showhonk)
1745	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
1746	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
1747	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
1748	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
1749	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
1750	getters.HandleFunc("/a", avatate)
1751	getters.HandleFunc("/o", thelistingoftheontologies)
1752	getters.HandleFunc("/o/{name:.+}", showontology)
1753	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
1754	getters.HandleFunc("/emu/{xid:[[:alnum:]_.-]+}", serveemu)
1755	getters.HandleFunc("/meme/{xid:[[:alnum:]_.-]+}", servememe)
1756	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
1757
1758	getters.HandleFunc("/style.css", servecss)
1759	getters.HandleFunc("/local.css", servecss)
1760	getters.HandleFunc("/honkpage.js", serveasset)
1761	getters.HandleFunc("/about", servehtml)
1762	getters.HandleFunc("/login", servehtml)
1763	posters.HandleFunc("/dologin", login.LoginFunc)
1764	getters.HandleFunc("/logout", login.LogoutFunc)
1765	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
1766
1767	loggedin := mux.NewRoute().Subrouter()
1768	loggedin.Use(login.Required)
1769	loggedin.HandleFunc("/first", homepage)
1770	loggedin.HandleFunc("/saved", homepage)
1771	loggedin.HandleFunc("/account", accountpage)
1772	loggedin.HandleFunc("/funzone", showfunzone)
1773	loggedin.HandleFunc("/chpass", dochpass)
1774	loggedin.HandleFunc("/atme", homepage)
1775	loggedin.HandleFunc("/hfcs", hfcspage)
1776	loggedin.HandleFunc("/xzone", xzone)
1777	loggedin.HandleFunc("/newhonk", newhonkpage)
1778	loggedin.HandleFunc("/edit", edithonkpage)
1779	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submithonk)))
1780	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
1781	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
1782	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
1783	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
1784	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
1785	loggedin.HandleFunc("/honkers", showhonkers)
1786	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
1787	loggedin.HandleFunc("/h", showhonker)
1788	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
1789	loggedin.HandleFunc("/c", showcombos)
1790	loggedin.HandleFunc("/t", showconvoy)
1791	loggedin.HandleFunc("/q", showsearch)
1792	loggedin.HandleFunc("/hydra", webhydra)
1793	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
1794
1795	err = http.Serve(listener, mux)
1796	if err != nil {
1797		log.Fatal(err)
1798	}
1799}