all repos — honk @ da26ed630a4e0b86488f7e38038ce86a1da93ebc

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"
  23	"html/template"
  24	"io"
  25	"log"
  26	notrand "math/rand"
  27	"net/http"
  28	"net/url"
  29	"os"
  30	"sort"
  31	"strconv"
  32	"strings"
  33	"time"
  34
  35	"github.com/gorilla/mux"
  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	if r.URL.Path == "/front" || u == nil {
  87		honks = getpublichonks()
  88	} else {
  89		userid = u.UserID
  90		if r.URL.Path == "/atme" {
  91			templinfo["PageName"] = "atme"
  92			honks = gethonksforme(userid)
  93		} else if r.URL.Path == "/first" {
  94			templinfo["PageName"] = "first"
  95			honks = gethonksforuser(userid)
  96			honks = osmosis(honks, userid)
  97		} else {
  98			templinfo["PageName"] = "home"
  99			honks = gethonksforuser(userid)
 100			honks = osmosis(honks, userid)
 101		}
 102		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 103	}
 104
 105	templinfo["ShowRSS"] = true
 106	templinfo["ServerMessage"] = serverMsg
 107	honkpage(w, u, honks, templinfo)
 108}
 109
 110func showfunzone(w http.ResponseWriter, r *http.Request) {
 111	var emunames, memenames []string
 112	dir, err := os.Open("emus")
 113	if err == nil {
 114		emunames, _ = dir.Readdirnames(0)
 115		dir.Close()
 116	}
 117	for i, e := range emunames {
 118		if len(e) > 4 {
 119			emunames[i] = e[:len(e)-4]
 120		}
 121	}
 122	dir, err = os.Open("memes")
 123	if err == nil {
 124		memenames, _ = dir.Readdirnames(0)
 125		dir.Close()
 126	}
 127	templinfo := getInfo(r)
 128	templinfo["Emus"] = emunames
 129	templinfo["Memes"] = memenames
 130	err = readviews.Execute(w, "funzone.html", templinfo)
 131	if err != nil {
 132		log.Print(err)
 133	}
 134}
 135
 136func showrss(w http.ResponseWriter, r *http.Request) {
 137	name := mux.Vars(r)["name"]
 138
 139	var honks []*Honk
 140	if name != "" {
 141		honks = gethonksbyuser(name, false)
 142	} else {
 143		honks = getpublichonks()
 144	}
 145	if len(honks) > 20 {
 146		honks = honks[0:20]
 147	}
 148	reverbolate(-1, honks)
 149
 150	home := fmt.Sprintf("https://%s/", serverName)
 151	base := home
 152	if name != "" {
 153		home += "u/" + name
 154		name += " "
 155	}
 156	feed := rss.Feed{
 157		Title:       name + "honk",
 158		Link:        home,
 159		Description: name + "honk rss",
 160		Image: &rss.Image{
 161			URL:   base + "icon.png",
 162			Title: name + "honk rss",
 163			Link:  home,
 164		},
 165	}
 166	var modtime time.Time
 167	for _, honk := range honks {
 168		if !firstclass(honk) {
 169			continue
 170		}
 171		desc := string(honk.HTML)
 172		if t := honk.Time; t != nil {
 173			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 174			if t.Duration != 0 {
 175				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 176			}
 177		}
 178		if p := honk.Place; p != nil {
 179			desc += fmt.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 180				html.EscapeString(p.Url), html.EscapeString(p.Name), p.Latitude, p.Longitude)
 181		}
 182		for _, d := range honk.Donks {
 183			desc += fmt.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 184				d.URL, html.EscapeString(d.Name))
 185		}
 186
 187		feed.Items = append(feed.Items, &rss.Item{
 188			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 189			Description: rss.CData{Data: desc},
 190			Link:        honk.URL,
 191			PubDate:     honk.Date.Format(time.RFC1123),
 192			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 193		})
 194		if honk.Date.After(modtime) {
 195			modtime = honk.Date
 196		}
 197	}
 198	w.Header().Set("Cache-Control", "max-age=300")
 199	w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 200
 201	err := feed.Write(w)
 202	if err != nil {
 203		log.Printf("error writing rss: %s", err)
 204	}
 205}
 206
 207func crappola(j junk.Junk) bool {
 208	t, _ := j.GetString("type")
 209	a, _ := j.GetString("actor")
 210	o, _ := j.GetString("object")
 211	if t == "Delete" && a == o {
 212		log.Printf("crappola from %s", a)
 213		return true
 214	}
 215	return false
 216}
 217
 218func ping(user *WhatAbout, who string) {
 219	var box *Box
 220	ok := boxofboxes.Get(who, &box)
 221	if !ok {
 222		log.Printf("no inbox to ping %s", who)
 223		return
 224	}
 225	j := junk.New()
 226	j["@context"] = itiswhatitis
 227	j["type"] = "Ping"
 228	j["id"] = user.URL + "/ping/" + xfiltrate()
 229	j["actor"] = user.URL
 230	j["to"] = who
 231	keyname, key := ziggy(user.Name)
 232	err := PostJunk(keyname, key, box.In, j)
 233	if err != nil {
 234		log.Printf("can't send ping: %s", err)
 235		return
 236	}
 237	log.Printf("sent ping to %s: %s", who, j["id"])
 238}
 239
 240func pong(user *WhatAbout, who string, obj string) {
 241	var box *Box
 242	ok := boxofboxes.Get(who, &box)
 243	if !ok {
 244		log.Printf("no inbox to pong %s", who)
 245		return
 246	}
 247	j := junk.New()
 248	j["@context"] = itiswhatitis
 249	j["type"] = "Pong"
 250	j["id"] = user.URL + "/pong/" + xfiltrate()
 251	j["actor"] = user.URL
 252	j["to"] = who
 253	j["object"] = obj
 254	keyname, key := ziggy(user.Name)
 255	err := PostJunk(keyname, key, box.In, j)
 256	if err != nil {
 257		log.Printf("can't send pong: %s", err)
 258		return
 259	}
 260}
 261
 262func inbox(w http.ResponseWriter, r *http.Request) {
 263	name := mux.Vars(r)["name"]
 264	user, err := butwhatabout(name)
 265	if err != nil {
 266		http.NotFound(w, r)
 267		return
 268	}
 269	if stealthmode(user.ID, r) {
 270		http.NotFound(w, r)
 271		return
 272	}
 273	var buf bytes.Buffer
 274	io.Copy(&buf, r.Body)
 275	payload := buf.Bytes()
 276	j, err := junk.Read(bytes.NewReader(payload))
 277	if err != nil {
 278		log.Printf("bad payload: %s", err)
 279		io.WriteString(os.Stdout, "bad payload\n")
 280		os.Stdout.Write(payload)
 281		io.WriteString(os.Stdout, "\n")
 282		return
 283	}
 284	if crappola(j) {
 285		return
 286	}
 287	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 288	if err != nil {
 289		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 290		if keyname != "" {
 291			log.Printf("bad signature from %s", keyname)
 292			io.WriteString(os.Stdout, "bad payload\n")
 293			os.Stdout.Write(payload)
 294			io.WriteString(os.Stdout, "\n")
 295		}
 296		return
 297	}
 298	what, _ := j.GetString("type")
 299	if what == "Like" {
 300		return
 301	}
 302	who, _ := j.GetString("actor")
 303	origin := keymatch(keyname, who)
 304	if origin == "" {
 305		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 306		return
 307	}
 308	if rejectactor(user.ID, who) {
 309		return
 310	}
 311	switch what {
 312	case "Ping":
 313		obj, _ := j.GetString("id")
 314		log.Printf("ping from %s: %s", who, obj)
 315		pong(user, who, obj)
 316	case "Pong":
 317		obj, _ := j.GetString("object")
 318		log.Printf("pong from %s: %s", who, obj)
 319	case "Follow":
 320		obj, _ := j.GetString("object")
 321		if obj == user.URL {
 322			log.Printf("updating honker follow: %s", who)
 323
 324			db := opendatabase()
 325			row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('dub', 'undub')", who, user.ID)
 326			var x string
 327			err = row.Scan(&x)
 328			if err != sql.ErrNoRows {
 329				log.Printf("duplicate follow request: %s", who)
 330				_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, "undub")
 331				if err != nil {
 332					log.Printf("error updating honker: %s", err)
 333				}
 334			} else {
 335				stmtSaveDub.Exec(user.ID, who, who, "dub")
 336			}
 337			go rubadubdub(user, j)
 338		} else {
 339			log.Printf("can't follow %s", obj)
 340		}
 341	case "Accept":
 342		log.Printf("updating honker accept: %s", who)
 343		_, err = stmtUpdateFlavor.Exec("sub", user.ID, who, "presub")
 344		if err != nil {
 345			log.Printf("error updating honker: %s", err)
 346			return
 347		}
 348	case "Update":
 349		obj, ok := j.GetMap("object")
 350		if ok {
 351			what, _ := obj.GetString("type")
 352			switch what {
 353			case "Person":
 354				return
 355			case "Question":
 356				return
 357			case "Note":
 358				go xonksaver(user, j, origin)
 359				return
 360			}
 361		}
 362		log.Printf("unknown Update activity")
 363		fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 364		j.Write(fd)
 365		io.WriteString(fd, "\n")
 366		fd.Close()
 367
 368	case "Undo":
 369		obj, ok := j.GetMap("object")
 370		if !ok {
 371			log.Printf("unknown undo no object")
 372		} else {
 373			what, _ := obj.GetString("type")
 374			switch what {
 375			case "Follow":
 376				log.Printf("updating honker undo: %s", who)
 377				_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, "dub")
 378				if err != nil {
 379					log.Printf("error updating honker: %s", err)
 380					return
 381				}
 382			case "Announce":
 383				xid, _ := obj.GetString("object")
 384				log.Printf("undo announce: %s", xid)
 385			case "Like":
 386			default:
 387				log.Printf("unknown undo: %s", what)
 388			}
 389		}
 390	default:
 391		go xonksaver(user, j, origin)
 392	}
 393}
 394
 395func ximport(w http.ResponseWriter, r *http.Request) {
 396	u := login.GetUserInfo(r)
 397	xid := r.FormValue("xid")
 398	xonk := getxonk(u.UserID, xid)
 399	if xonk == nil {
 400		p, _ := investigate(xid)
 401		if p != nil {
 402			xid = p.XID
 403		}
 404		j, err := GetJunk(xid)
 405		if err != nil {
 406			http.Error(w, "error getting external object", http.StatusInternalServerError)
 407			log.Printf("error getting external object: %s", err)
 408			return
 409		}
 410		log.Printf("importing %s", xid)
 411		user, _ := butwhatabout(u.Username)
 412
 413		what, _ := j.GetString("type")
 414		if isactor(what) {
 415			outbox, _ := j.GetString("outbox")
 416			gimmexonks(user, outbox)
 417			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 418			return
 419		}
 420		xonk = xonksaver(user, j, originate(xid))
 421	}
 422	convoy := ""
 423	if xonk != nil {
 424		convoy = xonk.Convoy
 425	}
 426	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 427}
 428
 429func xzone(w http.ResponseWriter, r *http.Request) {
 430	u := login.GetUserInfo(r)
 431	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 432	if err != nil {
 433		log.Printf("query err: %s", err)
 434		return
 435	}
 436	defer rows.Close()
 437	var honkers []Honker
 438	for rows.Next() {
 439		var xid string
 440		rows.Scan(&xid)
 441		honkers = append(honkers, Honker{XID: xid})
 442	}
 443	rows.Close()
 444	for i, _ := range honkers {
 445		_, honkers[i].Handle = handles(honkers[i].XID)
 446	}
 447	templinfo := getInfo(r)
 448	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 449	templinfo["Honkers"] = honkers
 450	err = readviews.Execute(w, "xzone.html", templinfo)
 451	if err != nil {
 452		log.Print(err)
 453	}
 454}
 455
 456var oldoutbox = cacheNew(cacheOptions{Filler: func(name string) ([]byte, bool) {
 457	user, err := butwhatabout(name)
 458	if err != nil {
 459		return nil, false
 460	}
 461	honks := gethonksbyuser(name, false)
 462	if len(honks) > 20 {
 463		honks = honks[0:20]
 464	}
 465
 466	var jonks []junk.Junk
 467	for _, h := range honks {
 468		j, _ := jonkjonk(user, h)
 469		jonks = append(jonks, j)
 470	}
 471
 472	j := junk.New()
 473	j["@context"] = itiswhatitis
 474	j["id"] = user.URL + "/outbox"
 475	j["type"] = "OrderedCollection"
 476	j["totalItems"] = len(jonks)
 477	j["orderedItems"] = jonks
 478
 479	var buf bytes.Buffer
 480	j.Write(&buf)
 481	return buf.Bytes(), true
 482}, Duration: 1 * time.Minute})
 483
 484func outbox(w http.ResponseWriter, r *http.Request) {
 485	name := mux.Vars(r)["name"]
 486	user, err := butwhatabout(name)
 487	if err != nil {
 488		http.NotFound(w, r)
 489		return
 490	}
 491	if stealthmode(user.ID, r) {
 492		http.NotFound(w, r)
 493		return
 494	}
 495	var j []byte
 496	ok := oldoutbox.Get(name, &j)
 497	if ok {
 498		w.Header().Set("Content-Type", theonetruename)
 499		w.Write(j)
 500	} else {
 501		http.NotFound(w, r)
 502	}
 503}
 504
 505func emptiness(w http.ResponseWriter, r *http.Request) {
 506	name := mux.Vars(r)["name"]
 507	user, err := butwhatabout(name)
 508	if err != nil {
 509		http.NotFound(w, r)
 510		return
 511	}
 512	if stealthmode(user.ID, r) {
 513		http.NotFound(w, r)
 514		return
 515	}
 516	colname := "/followers"
 517	if strings.HasSuffix(r.URL.Path, "/following") {
 518		colname = "/following"
 519	}
 520	j := junk.New()
 521	j["@context"] = itiswhatitis
 522	j["id"] = user.URL + colname
 523	j["type"] = "OrderedCollection"
 524	j["totalItems"] = 0
 525	j["orderedItems"] = []junk.Junk{}
 526
 527	w.Header().Set("Content-Type", theonetruename)
 528	j.Write(w)
 529}
 530
 531func showuser(w http.ResponseWriter, r *http.Request) {
 532	name := mux.Vars(r)["name"]
 533	user, err := butwhatabout(name)
 534	if err != nil {
 535		log.Printf("user not found %s: %s", name, err)
 536		http.NotFound(w, r)
 537		return
 538	}
 539	if stealthmode(user.ID, r) {
 540		http.NotFound(w, r)
 541		return
 542	}
 543	if friendorfoe(r.Header.Get("Accept")) {
 544		j, ok := asjonker(name)
 545		if ok {
 546			w.Header().Set("Content-Type", theonetruename)
 547			w.Write(j)
 548		} else {
 549			http.NotFound(w, r)
 550		}
 551		return
 552	}
 553	u := login.GetUserInfo(r)
 554	honks := gethonksbyuser(name, u != nil && u.Username == name)
 555	templinfo := getInfo(r)
 556	filt := htfilter.New()
 557	templinfo["Name"] = user.Name
 558	whatabout := user.About
 559	whatabout = markitzero(user.About)
 560	templinfo["WhatAbout"], _ = filt.String(whatabout)
 561	templinfo["ServerMessage"] = ""
 562	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 563	honkpage(w, u, honks, templinfo)
 564}
 565
 566func showhonker(w http.ResponseWriter, r *http.Request) {
 567	u := login.GetUserInfo(r)
 568	name := mux.Vars(r)["name"]
 569	var honks []*Honk
 570	if name == "" {
 571		name = r.FormValue("xid")
 572		honks = gethonksbyxonker(u.UserID, name)
 573	} else {
 574		honks = gethonksbyhonker(u.UserID, name)
 575	}
 576	name = html.EscapeString(name)
 577	msg := fmt.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, name, name)
 578	templinfo := getInfo(r)
 579	templinfo["PageName"] = "honker"
 580	templinfo["PageArg"] = name
 581	templinfo["ServerMessage"] = template.HTML(msg)
 582	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 583	honkpage(w, u, honks, templinfo)
 584}
 585
 586func showcombo(w http.ResponseWriter, r *http.Request) {
 587	name := mux.Vars(r)["name"]
 588	u := login.GetUserInfo(r)
 589	honks := gethonksbycombo(u.UserID, name)
 590	honks = osmosis(honks, u.UserID)
 591	templinfo := getInfo(r)
 592	templinfo["PageName"] = "combo"
 593	templinfo["PageArg"] = name
 594	templinfo["ServerMessage"] = "honks by combo: " + name
 595	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 596	honkpage(w, u, honks, templinfo)
 597}
 598func showconvoy(w http.ResponseWriter, r *http.Request) {
 599	c := r.FormValue("c")
 600	u := login.GetUserInfo(r)
 601	honks := gethonksbyconvoy(u.UserID, c)
 602	templinfo := getInfo(r)
 603	if len(honks) > 0 {
 604		templinfo["TopXID"] = honks[0].XID
 605	}
 606	reversehonks(honks)
 607	templinfo["PageName"] = "convoy"
 608	templinfo["PageArg"] = c
 609	templinfo["ServerMessage"] = "honks in convoy: " + c
 610	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 611	honkpage(w, u, honks, templinfo)
 612}
 613func showsearch(w http.ResponseWriter, r *http.Request) {
 614	q := r.FormValue("q")
 615	u := login.GetUserInfo(r)
 616	honks := gethonksbysearch(u.UserID, q)
 617	templinfo := getInfo(r)
 618	templinfo["PageName"] = "search"
 619	templinfo["PageArg"] = q
 620	templinfo["ServerMessage"] = "honks for search: " + q
 621	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 622	honkpage(w, u, honks, templinfo)
 623}
 624func showontology(w http.ResponseWriter, r *http.Request) {
 625	name := mux.Vars(r)["name"]
 626	u := login.GetUserInfo(r)
 627	var userid int64 = -1
 628	if u != nil {
 629		userid = u.UserID
 630	}
 631	honks := gethonksbyontology(userid, "#"+name)
 632	templinfo := getInfo(r)
 633	templinfo["ServerMessage"] = "honks by ontology: " + name
 634	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 635	honkpage(w, u, honks, templinfo)
 636}
 637
 638func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 639	u := login.GetUserInfo(r)
 640	var userid int64 = -1
 641	if u != nil {
 642		userid = u.UserID
 643	}
 644	rows, err := stmtSelectOnts.Query(userid)
 645	if err != nil {
 646		log.Printf("selection error: %s", err)
 647		return
 648	}
 649	defer rows.Close()
 650	var onts [][]string
 651	for rows.Next() {
 652		var o string
 653		err := rows.Scan(&o)
 654		if err != nil {
 655			log.Printf("error scanning ont: %s", err)
 656			continue
 657		}
 658		onts = append(onts, []string{o, o[1:]})
 659	}
 660	if u == nil {
 661		w.Header().Set("Cache-Control", "max-age=300")
 662	}
 663	templinfo := getInfo(r)
 664	templinfo["Onts"] = onts
 665	err = readviews.Execute(w, "onts.html", templinfo)
 666	if err != nil {
 667		log.Print(err)
 668	}
 669}
 670
 671func showhonk(w http.ResponseWriter, r *http.Request) {
 672	name := mux.Vars(r)["name"]
 673	user, err := butwhatabout(name)
 674	if err != nil {
 675		http.NotFound(w, r)
 676		return
 677	}
 678	if stealthmode(user.ID, r) {
 679		http.NotFound(w, r)
 680		return
 681	}
 682	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
 683
 684	if friendorfoe(r.Header.Get("Accept")) {
 685		j, ok := gimmejonk(xid)
 686		if ok {
 687			w.Header().Set("Content-Type", theonetruename)
 688			w.Write(j)
 689		} else {
 690			http.NotFound(w, r)
 691		}
 692		return
 693	}
 694	honk := getxonk(user.ID, xid)
 695	if honk == nil {
 696		http.NotFound(w, r)
 697		return
 698	}
 699	u := login.GetUserInfo(r)
 700	if u != nil && u.UserID != user.ID {
 701		u = nil
 702	}
 703	if !honk.Public {
 704		if u == nil {
 705			http.NotFound(w, r)
 706			return
 707
 708		}
 709		templinfo := getInfo(r)
 710		templinfo["ServerMessage"] = "one honk maybe more"
 711		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 712		honkpage(w, u, []*Honk{honk}, templinfo)
 713		return
 714	}
 715	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy)
 716	reversehonks(rawhonks)
 717	var honks []*Honk
 718	for _, h := range rawhonks {
 719		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
 720			honks = append(honks, h)
 721		}
 722	}
 723
 724	templinfo := getInfo(r)
 725	templinfo["ServerMessage"] = "one honk maybe more"
 726	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 727	honkpage(w, u, honks, templinfo)
 728}
 729
 730func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
 731	var userid int64 = -1
 732	if u != nil {
 733		userid = u.UserID
 734	}
 735	if u == nil {
 736		w.Header().Set("Cache-Control", "max-age=60")
 737	}
 738	reverbolate(userid, honks)
 739	templinfo["Honks"] = honks
 740	if templinfo["TopXID"] == nil && len(honks) > 0 {
 741		templinfo["TopXID"] = honks[0].XID
 742	}
 743	err := readviews.Execute(w, "honkpage.html", templinfo)
 744	if err != nil {
 745		log.Print(err)
 746	}
 747}
 748
 749func saveuser(w http.ResponseWriter, r *http.Request) {
 750	whatabout := r.FormValue("whatabout")
 751	u := login.GetUserInfo(r)
 752	db := opendatabase()
 753	options := ""
 754	if r.FormValue("skinny") == "skinny" {
 755		options += " skinny "
 756	}
 757	_, err := db.Exec("update users set about = ?, options = ? where username = ?", whatabout, options, u.Username)
 758	if err != nil {
 759		log.Printf("error bouting what: %s", err)
 760	}
 761	someusers.Clear(u.Username)
 762
 763	http.Redirect(w, r, "/account", http.StatusSeeOther)
 764}
 765
 766func submitbonk(w http.ResponseWriter, r *http.Request) {
 767	xid := r.FormValue("xid")
 768	userinfo := login.GetUserInfo(r)
 769	user, _ := butwhatabout(userinfo.Username)
 770
 771	log.Printf("bonking %s", xid)
 772
 773	xonk := getxonk(userinfo.UserID, xid)
 774	if xonk == nil {
 775		return
 776	}
 777	if !xonk.Public {
 778		return
 779	}
 780	donksforhonks([]*Honk{xonk})
 781
 782	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
 783	if err != nil {
 784		log.Printf("error acking bonk: %s", err)
 785	}
 786
 787	oonker := xonk.Oonker
 788	if oonker == "" {
 789		oonker = xonk.Honker
 790	}
 791	dt := time.Now().UTC()
 792	bonk := Honk{
 793		UserID:   userinfo.UserID,
 794		Username: userinfo.Username,
 795		What:     "bonk",
 796		Honker:   user.URL,
 797		Oonker:   oonker,
 798		XID:      xonk.XID,
 799		RID:      xonk.RID,
 800		Noise:    xonk.Noise,
 801		Precis:   xonk.Precis,
 802		URL:      xonk.URL,
 803		Date:     dt,
 804		Donks:    xonk.Donks,
 805		Whofore:  2,
 806		Convoy:   xonk.Convoy,
 807		Audience: []string{thewholeworld, oonker},
 808		Public:   true,
 809	}
 810
 811	bonk.Format = "html"
 812
 813	err = savehonk(&bonk)
 814	if err != nil {
 815		log.Printf("uh oh")
 816		return
 817	}
 818
 819	go honkworldwide(user, &bonk)
 820}
 821
 822func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string) {
 823	zonk := Honk{
 824		What:     what,
 825		XID:      xonk.XID,
 826		Date:     time.Now().UTC(),
 827		Audience: oneofakind(xonk.Audience),
 828	}
 829	zonk.Public = !keepitquiet(zonk.Audience)
 830
 831	log.Printf("announcing %sed honk: %s", what, xonk.XID)
 832	go honkworldwide(user, &zonk)
 833}
 834
 835func zonkit(w http.ResponseWriter, r *http.Request) {
 836	wherefore := r.FormValue("wherefore")
 837	what := r.FormValue("what")
 838	userinfo := login.GetUserInfo(r)
 839	user, _ := butwhatabout(userinfo.Username)
 840
 841	// my hammer is too big, oh well
 842	defer oldjonks.Flush()
 843
 844	if wherefore == "ack" {
 845		xonk := getxonk(userinfo.UserID, what)
 846		if xonk != nil {
 847			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
 848			if err != nil {
 849				log.Printf("error acking: %s", err)
 850			}
 851			sendzonkofsorts(xonk, user, "ack")
 852		}
 853		return
 854	}
 855
 856	if wherefore == "deack" {
 857		xonk := getxonk(userinfo.UserID, what)
 858		if xonk != nil {
 859			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
 860			if err != nil {
 861				log.Printf("error deacking: %s", err)
 862			}
 863			sendzonkofsorts(xonk, user, "deack")
 864		}
 865		return
 866	}
 867
 868	if wherefore == "unbonk" {
 869		xonk := getbonk(userinfo.UserID, what)
 870		if xonk != nil {
 871			deletehonk(xonk.ID)
 872			xonk = getxonk(userinfo.UserID, what)
 873			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
 874			if err != nil {
 875				log.Printf("error unbonking: %s", err)
 876			}
 877			sendzonkofsorts(xonk, user, "unbonk")
 878		}
 879		return
 880	}
 881
 882	log.Printf("zonking %s %s", wherefore, what)
 883	if wherefore == "zonk" {
 884		xonk := getxonk(userinfo.UserID, what)
 885		if xonk != nil {
 886			deletehonk(xonk.ID)
 887			if xonk.Whofore == 2 || xonk.Whofore == 3 {
 888				sendzonkofsorts(xonk, user, "zonk")
 889			}
 890		}
 891	}
 892	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
 893	if err != nil {
 894		log.Printf("error saving zonker: %s", err)
 895		return
 896	}
 897}
 898
 899func edithonkpage(w http.ResponseWriter, r *http.Request) {
 900	u := login.GetUserInfo(r)
 901	user, _ := butwhatabout(u.Username)
 902	xid := r.FormValue("xid")
 903	honk := getxonk(u.UserID, xid)
 904	if honk == nil || honk.Honker != user.URL || honk.What != "honk" {
 905		log.Printf("no edit")
 906		return
 907	}
 908
 909	noise := honk.Noise
 910	if honk.Precis != "" {
 911		noise = honk.Precis + "\n\n" + noise
 912	}
 913
 914	honks := []*Honk{honk}
 915	donksforhonks(honks)
 916	reverbolate(u.UserID, honks)
 917	templinfo := getInfo(r)
 918	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 919	templinfo["Honks"] = honks
 920	templinfo["Noise"] = noise
 921	templinfo["ServerMessage"] = "honk edit"
 922	templinfo["UpdateXID"] = honk.XID
 923	if len(honk.Donks) > 0 {
 924		templinfo["SavedFile"] = honk.Donks[0].XID
 925	}
 926	err := readviews.Execute(w, "honkpage.html", templinfo)
 927	if err != nil {
 928		log.Print(err)
 929	}
 930}
 931
 932// what a hot mess this function is
 933func submithonk(w http.ResponseWriter, r *http.Request) {
 934	rid := r.FormValue("rid")
 935	noise := r.FormValue("noise")
 936
 937	userinfo := login.GetUserInfo(r)
 938	user, _ := butwhatabout(userinfo.Username)
 939
 940	dt := time.Now().UTC()
 941	updatexid := r.FormValue("updatexid")
 942	var honk *Honk
 943	if updatexid != "" {
 944		honk = getxonk(userinfo.UserID, updatexid)
 945		if honk == nil || honk.Honker != user.URL || honk.What != "honk" {
 946			log.Printf("not saving edit")
 947			return
 948		}
 949		honk.Date = dt
 950		honk.What = "update"
 951		honk.Format = "markdown"
 952	} else {
 953		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
 954		what := "honk"
 955		if rid != "" {
 956			what = "tonk"
 957		}
 958		honk = &Honk{
 959			UserID:   userinfo.UserID,
 960			Username: userinfo.Username,
 961			What:     what,
 962			Honker:   user.URL,
 963			XID:      xid,
 964			Date:     dt,
 965			Format:   "markdown",
 966		}
 967	}
 968
 969	noise = hooterize(noise)
 970	honk.Noise = noise
 971	translate(honk)
 972
 973	var convoy string
 974	if rid != "" {
 975		xonk := getxonk(userinfo.UserID, rid)
 976		if xonk != nil {
 977			if xonk.Public {
 978				honk.Audience = append(honk.Audience, xonk.Audience...)
 979			}
 980			convoy = xonk.Convoy
 981		} else {
 982			xonkaud, c := whosthere(rid)
 983			honk.Audience = append(honk.Audience, xonkaud...)
 984			convoy = c
 985		}
 986		for i, a := range honk.Audience {
 987			if a == thewholeworld {
 988				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
 989				break
 990			}
 991		}
 992		honk.RID = rid
 993	} else {
 994		honk.Audience = []string{thewholeworld}
 995	}
 996	if honk.Noise != "" && honk.Noise[0] == '@' {
 997		honk.Audience = append(grapevine(honk.Noise), honk.Audience...)
 998	} else {
 999		honk.Audience = append(honk.Audience, grapevine(honk.Noise)...)
1000	}
1001
1002	if convoy == "" {
1003		convoy = "data:,electrichonkytonk-" + xfiltrate()
1004	}
1005	butnottooloud(honk.Audience)
1006	honk.Audience = oneofakind(honk.Audience)
1007	if len(honk.Audience) == 0 {
1008		log.Printf("honk to nowhere")
1009		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1010		return
1011	}
1012	honk.Public = !keepitquiet(honk.Audience)
1013	honk.Convoy = convoy
1014
1015	donkxid := r.FormValue("donkxid")
1016	if donkxid == "" {
1017		file, filehdr, err := r.FormFile("donk")
1018		if err == nil {
1019			var buf bytes.Buffer
1020			io.Copy(&buf, file)
1021			file.Close()
1022			data := buf.Bytes()
1023			xid := xfiltrate()
1024			var media, name string
1025			img, err := image.Vacuum(&buf, image.Params{MaxWidth: 2048, MaxHeight: 2048})
1026			if err == nil {
1027				data = img.Data
1028				format := img.Format
1029				media = "image/" + format
1030				if format == "jpeg" {
1031					format = "jpg"
1032				}
1033				name = xid + "." + format
1034				xid = name
1035			} else {
1036				maxsize := 100000
1037				if len(data) > maxsize {
1038					log.Printf("bad image: %s too much text: %d", err, len(data))
1039					http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1040					return
1041				}
1042				for i := 0; i < len(data); i++ {
1043					if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1044						log.Printf("bad image: %s not text: %d", err, data[i])
1045						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1046						return
1047					}
1048				}
1049				media = "text/plain"
1050				name = filehdr.Filename
1051				if name == "" {
1052					name = xid + ".txt"
1053				}
1054				xid += ".txt"
1055			}
1056			desc := r.FormValue("donkdesc")
1057			if desc == "" {
1058				desc = name
1059			}
1060			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1061			fileid, err := savefile(xid, name, desc, url, media, true, data)
1062			if err != nil {
1063				log.Printf("unable to save image: %s", err)
1064				return
1065			}
1066			var d Donk
1067			d.FileID = fileid
1068			honk.Donks = append(honk.Donks, &d)
1069			donkxid = d.XID
1070		}
1071	} else {
1072		xid := donkxid
1073		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1074		donk := finddonk(url)
1075		if donk != nil {
1076			honk.Donks = append(honk.Donks, donk)
1077		} else {
1078			log.Printf("can't find file: %s", xid)
1079		}
1080	}
1081	herd := herdofemus(honk.Noise)
1082	for _, e := range herd {
1083		donk := savedonk(e.ID, e.Name, e.Name, "image/png", true)
1084		if donk != nil {
1085			donk.Name = e.Name
1086			honk.Donks = append(honk.Donks, donk)
1087		}
1088	}
1089	memetize(honk)
1090
1091	placename := r.FormValue("placename")
1092	placelat := r.FormValue("placelat")
1093	placelong := r.FormValue("placelong")
1094	if placename != "" || placelat != "" || placelong != "" {
1095		p := new(Place)
1096		p.Name = placename
1097		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1098		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1099		p.Url = r.FormValue("placeurl")
1100		honk.Place = p
1101	}
1102	timestart := r.FormValue("timestart")
1103	if timestart != "" {
1104		t := new(Time)
1105		now := time.Now().Local()
1106		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1107			start, err := time.ParseInLocation(layout, timestart, now.Location())
1108			if err == nil {
1109				if start.Year() == 0 {
1110					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1111				}
1112				t.StartTime = start
1113				break
1114			}
1115		}
1116		timeend := r.FormValue("timeend")
1117		dur, err := time.ParseDuration(timeend)
1118		if err == nil {
1119			t.Duration = Duration(dur)
1120		}
1121		if !t.StartTime.IsZero() {
1122			honk.What = "event"
1123			honk.Time = t
1124		}
1125	}
1126
1127	if honk.Public {
1128		honk.Whofore = 2
1129	} else {
1130		honk.Whofore = 3
1131	}
1132
1133	// back to markdown
1134	honk.Noise = noise
1135
1136	if r.FormValue("preview") == "preview" {
1137		honks := []*Honk{honk}
1138		reverbolate(userinfo.UserID, honks)
1139		templinfo := getInfo(r)
1140		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1141		templinfo["Honks"] = honks
1142		templinfo["InReplyTo"] = r.FormValue("rid")
1143		templinfo["Noise"] = r.FormValue("noise")
1144		templinfo["SavedFile"] = donkxid
1145		templinfo["ServerMessage"] = "honk preview"
1146		err := readviews.Execute(w, "honkpage.html", templinfo)
1147		if err != nil {
1148			log.Print(err)
1149		}
1150		return
1151	}
1152
1153	if updatexid != "" {
1154		updatehonk(honk)
1155		oldjonks.Clear(honk.XID)
1156	} else {
1157		err := savehonk(honk)
1158		if err != nil {
1159			log.Printf("uh oh")
1160			return
1161		}
1162	}
1163
1164	// reload for consistency
1165	honk.Donks = nil
1166	donksforhonks([]*Honk{honk})
1167
1168	go honkworldwide(user, honk)
1169
1170	http.Redirect(w, r, honk.XID, http.StatusSeeOther)
1171}
1172
1173func showhonkers(w http.ResponseWriter, r *http.Request) {
1174	userinfo := login.GetUserInfo(r)
1175	templinfo := getInfo(r)
1176	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1177	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1178	err := readviews.Execute(w, "honkers.html", templinfo)
1179	if err != nil {
1180		log.Print(err)
1181	}
1182}
1183
1184var combocache = cacheNew(cacheOptions{Filler: func(userid int64) ([]string, bool) {
1185	honkers := gethonkers(userid)
1186	var combos []string
1187	for _, h := range honkers {
1188		combos = append(combos, h.Combos...)
1189	}
1190	for i, c := range combos {
1191		if c == "-" {
1192			combos[i] = ""
1193		}
1194	}
1195	combos = oneofakind(combos)
1196	sort.Strings(combos)
1197	return combos, true
1198}})
1199
1200func showcombos(w http.ResponseWriter, r *http.Request) {
1201	userinfo := login.GetUserInfo(r)
1202	var combos []string
1203	combocache.Get(userinfo.UserID, &combos)
1204	templinfo := getInfo(r)
1205	err := readviews.Execute(w, "combos.html", templinfo)
1206	if err != nil {
1207		log.Print(err)
1208	}
1209}
1210
1211func submithonker(w http.ResponseWriter, r *http.Request) {
1212	u := login.GetUserInfo(r)
1213	name := r.FormValue("name")
1214	url := r.FormValue("url")
1215	peep := r.FormValue("peep")
1216	combos := r.FormValue("combos")
1217	combos = " " + strings.TrimSpace(combos) + " "
1218	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1219
1220	defer combocache.Clear(u.UserID)
1221
1222	if honkerid > 0 {
1223		goodbye := r.FormValue("goodbye")
1224		if goodbye == "F" {
1225			db := opendatabase()
1226			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1227				honkerid, u.UserID)
1228			err := row.Scan(&url)
1229			if err != nil {
1230				log.Printf("can't get honker xid: %s", err)
1231				return
1232			}
1233			log.Printf("unsubscribing from %s", url)
1234			user, _ := butwhatabout(u.Username)
1235			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, "sub")
1236			if err != nil {
1237				log.Printf("error updating honker: %s", err)
1238				return
1239			}
1240			go itakeitallback(user, url)
1241
1242			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1243			return
1244		}
1245		if goodbye == "X" {
1246			db := opendatabase()
1247			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep')",
1248				honkerid, u.UserID)
1249			err := row.Scan(&url)
1250			if err != nil {
1251				log.Printf("can't get honker xid: %s", err)
1252				return
1253			}
1254			log.Printf("resubscribing to %s", url)
1255			user, _ := butwhatabout(u.Username)
1256			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, "unsub")
1257			if err == nil {
1258				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, "peep")
1259			}
1260			if err != nil {
1261				log.Printf("error updating honker: %s", err)
1262				return
1263			}
1264			go subsub(user, url)
1265
1266			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1267			return
1268		}
1269		_, err := stmtUpdateHonker.Exec(name, combos, honkerid, u.UserID)
1270		if err != nil {
1271			log.Printf("update honker err: %s", err)
1272			return
1273		}
1274		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1275		return
1276	}
1277
1278	flavor := "presub"
1279	if peep == "peep" {
1280		flavor = "peep"
1281	}
1282	p, err := investigate(url)
1283	if err != nil {
1284		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1285		log.Printf("failed to investigate honker: %s", err)
1286		return
1287	}
1288	url = p.XID
1289
1290	db := opendatabase()
1291	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1292	var x string
1293	err = row.Scan(&x)
1294	if err != sql.ErrNoRows {
1295		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1296		if err != nil {
1297			log.Printf("honker scan err: %s", err)
1298		}
1299		return
1300	}
1301
1302	if name == "" {
1303		name = p.Handle
1304	}
1305	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos)
1306	if err != nil {
1307		log.Print(err)
1308		return
1309	}
1310	if flavor == "presub" {
1311		user, _ := butwhatabout(u.Username)
1312		go subsub(user, url)
1313	}
1314	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1315}
1316
1317func hfcspage(w http.ResponseWriter, r *http.Request) {
1318	userinfo := login.GetUserInfo(r)
1319
1320	filters := getfilters(userinfo.UserID, filtAny)
1321
1322	templinfo := getInfo(r)
1323	templinfo["Filters"] = filters
1324	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1325	err := readviews.Execute(w, "hfcs.html", templinfo)
1326	if err != nil {
1327		log.Print(err)
1328	}
1329}
1330
1331func savehfcs(w http.ResponseWriter, r *http.Request) {
1332	userinfo := login.GetUserInfo(r)
1333	itsok := r.FormValue("itsok")
1334	if itsok == "iforgiveyou" {
1335		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1336		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1337		if err != nil {
1338			log.Printf("error deleting filter: %s", err)
1339		}
1340		filtcache.Clear(userinfo.UserID)
1341		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1342		return
1343	}
1344
1345	filt := new(Filter)
1346	filt.Name = r.FormValue("name")
1347	filt.Date = time.Now().UTC()
1348	filt.Actor = r.FormValue("actor")
1349	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1350	filt.Text = r.FormValue("filttext")
1351	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1352	filt.AnnounceOf = r.FormValue("announceof")
1353	filt.Reject = r.FormValue("doreject") == "yes"
1354	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1355	filt.Hide = r.FormValue("dohide") == "yes"
1356	filt.Collapse = r.FormValue("docollapse") == "yes"
1357	filt.Rewrite = r.FormValue("filtrewrite")
1358	filt.Replace = r.FormValue("filtreplace")
1359
1360	if filt.Actor == "" && filt.Text == "" {
1361		log.Printf("blank filter")
1362		return
1363	}
1364
1365	j, err := jsonify(filt)
1366	if err == nil {
1367		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1368	}
1369	if err != nil {
1370		log.Printf("error saving filter: %s", err)
1371	}
1372
1373	filtcache.Clear(userinfo.UserID)
1374	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1375}
1376
1377func accountpage(w http.ResponseWriter, r *http.Request) {
1378	u := login.GetUserInfo(r)
1379	user, _ := butwhatabout(u.Username)
1380	templinfo := getInfo(r)
1381	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1382	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1383	templinfo["User"] = user
1384	err := readviews.Execute(w, "account.html", templinfo)
1385	if err != nil {
1386		log.Print(err)
1387	}
1388}
1389
1390func dochpass(w http.ResponseWriter, r *http.Request) {
1391	err := login.ChangePassword(w, r)
1392	if err != nil {
1393		log.Printf("error changing password: %s", err)
1394	}
1395	http.Redirect(w, r, "/account", http.StatusSeeOther)
1396}
1397
1398func fingerlicker(w http.ResponseWriter, r *http.Request) {
1399	orig := r.FormValue("resource")
1400
1401	log.Printf("finger lick: %s", orig)
1402
1403	if strings.HasPrefix(orig, "acct:") {
1404		orig = orig[5:]
1405	}
1406
1407	name := orig
1408	idx := strings.LastIndexByte(name, '/')
1409	if idx != -1 {
1410		name = name[idx+1:]
1411		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
1412			log.Printf("foreign request rejected")
1413			name = ""
1414		}
1415	} else {
1416		idx = strings.IndexByte(name, '@')
1417		if idx != -1 {
1418			name = name[:idx]
1419			if name+"@"+serverName != orig {
1420				log.Printf("foreign request rejected")
1421				name = ""
1422			}
1423		}
1424	}
1425	user, err := butwhatabout(name)
1426	if err != nil {
1427		http.NotFound(w, r)
1428		return
1429	}
1430	if stealthmode(user.ID, r) {
1431		http.NotFound(w, r)
1432		return
1433	}
1434
1435	j := junk.New()
1436	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, serverName)
1437	j["aliases"] = []string{user.URL}
1438	var links []junk.Junk
1439	l := junk.New()
1440	l["rel"] = "self"
1441	l["type"] = `application/activity+json`
1442	l["href"] = user.URL
1443	links = append(links, l)
1444	j["links"] = links
1445
1446	w.Header().Set("Cache-Control", "max-age=3600")
1447	w.Header().Set("Content-Type", "application/jrd+json")
1448	j.Write(w)
1449}
1450
1451func somedays() string {
1452	secs := 432000 + notrand.Int63n(432000)
1453	return fmt.Sprintf("%d", secs)
1454}
1455
1456func avatate(w http.ResponseWriter, r *http.Request) {
1457	n := r.FormValue("a")
1458	a := avatar(n)
1459	w.Header().Set("Cache-Control", "max-age="+somedays())
1460	w.Write(a)
1461}
1462
1463func servecss(w http.ResponseWriter, r *http.Request) {
1464	fd, err := os.Open("views" + r.URL.Path)
1465	if err != nil {
1466		http.NotFound(w, r)
1467		return
1468	}
1469	w.Header().Set("Cache-Control", "max-age=0")
1470	w.Header().Set("Content-Type", "text/css; charset=utf-8")
1471	err = css.Filter(fd, w)
1472	if err != nil {
1473		log.Printf("error filtering css: %s", err)
1474	}
1475}
1476func serveasset(w http.ResponseWriter, r *http.Request) {
1477	w.Header().Set("Cache-Control", "max-age=7776000")
1478	http.ServeFile(w, r, "views"+r.URL.Path)
1479}
1480func servehelp(w http.ResponseWriter, r *http.Request) {
1481	name := mux.Vars(r)["name"]
1482	w.Header().Set("Cache-Control", "max-age=600")
1483	http.ServeFile(w, r, "docs/"+name)
1484}
1485func servehtml(w http.ResponseWriter, r *http.Request) {
1486	templinfo := getInfo(r)
1487	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
1488	if err != nil {
1489		log.Print(err)
1490	}
1491}
1492func serveemu(w http.ResponseWriter, r *http.Request) {
1493	xid := mux.Vars(r)["xid"]
1494	w.Header().Set("Cache-Control", "max-age="+somedays())
1495	http.ServeFile(w, r, "emus/"+xid)
1496}
1497func servememe(w http.ResponseWriter, r *http.Request) {
1498	xid := mux.Vars(r)["xid"]
1499	w.Header().Set("Cache-Control", "max-age="+somedays())
1500	http.ServeFile(w, r, "memes/"+xid)
1501}
1502
1503func servefile(w http.ResponseWriter, r *http.Request) {
1504	xid := mux.Vars(r)["xid"]
1505	row := stmtGetFileData.QueryRow(xid)
1506	var media string
1507	var data []byte
1508	err := row.Scan(&media, &data)
1509	if err != nil {
1510		log.Printf("error loading file: %s", err)
1511		http.NotFound(w, r)
1512		return
1513	}
1514	w.Header().Set("Content-Type", media)
1515	w.Header().Set("X-Content-Type-Options", "nosniff")
1516	w.Header().Set("Cache-Control", "max-age="+somedays())
1517	w.Write(data)
1518}
1519
1520func nomoroboto(w http.ResponseWriter, r *http.Request) {
1521	io.WriteString(w, "User-agent: *\n")
1522	io.WriteString(w, "Disallow: /a\n")
1523	io.WriteString(w, "Disallow: /d\n")
1524	io.WriteString(w, "Disallow: /meme\n")
1525	for _, u := range allusers() {
1526		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
1527	}
1528}
1529
1530func webhydra(w http.ResponseWriter, r *http.Request) {
1531	u := login.GetUserInfo(r)
1532	userid := u.UserID
1533	templinfo := getInfo(r)
1534	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1535	page := r.FormValue("page")
1536	var honks []*Honk
1537	switch page {
1538	case "atme":
1539		honks = gethonksforme(userid)
1540		templinfo["ServerMessage"] = "at me!"
1541	case "home":
1542		honks = gethonksforuser(userid)
1543		honks = osmosis(honks, userid)
1544		templinfo["ServerMessage"] = serverMsg
1545	case "first":
1546		honks = gethonksforuserfirstclass(userid)
1547		honks = osmosis(honks, userid)
1548		templinfo["ServerMessage"] = "first class only"
1549	case "combo":
1550		c := r.FormValue("c")
1551		honks = gethonksbycombo(userid, c)
1552		honks = osmosis(honks, userid)
1553		templinfo["ServerMessage"] = "honks by combo: " + c
1554	case "convoy":
1555		c := r.FormValue("c")
1556		honks = gethonksbyconvoy(userid, c)
1557		templinfo["ServerMessage"] = "honks in convoy: " + c
1558	case "honker":
1559		xid := r.FormValue("xid")
1560		if strings.IndexByte(xid, '@') != -1 {
1561			xid = gofish(xid)
1562		}
1563		honks = gethonksbyxonker(userid, xid)
1564		xid = html.EscapeString(xid)
1565		msg := fmt.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
1566		templinfo["ServerMessage"] = template.HTML(msg)
1567	default:
1568		http.NotFound(w, r)
1569	}
1570	if len(honks) > 0 {
1571		templinfo["TopXID"] = honks[0].XID
1572	}
1573	if topxid := r.FormValue("topxid"); topxid != "" {
1574		for i, h := range honks {
1575			if h.XID == topxid {
1576				honks = honks[0:i]
1577				break
1578			}
1579		}
1580		log.Printf("topxid %d frags", len(honks))
1581	}
1582	reverbolate(userid, honks)
1583	templinfo["Honks"] = honks
1584	w.Header().Set("Content-Type", "text/html; charset=utf-8")
1585	err := readviews.Execute(w, "honkfrags.html", templinfo)
1586	if err != nil {
1587		log.Printf("frag error: %s", err)
1588	}
1589}
1590
1591func serve() {
1592	db := opendatabase()
1593	login.Init(db)
1594
1595	listener, err := openListener()
1596	if err != nil {
1597		log.Fatal(err)
1598	}
1599	go redeliverator()
1600
1601	debug := false
1602	getconfig("debug", &debug)
1603	readviews = templates.Load(debug,
1604		"views/honkpage.html",
1605		"views/honkfrags.html",
1606		"views/honkers.html",
1607		"views/hfcs.html",
1608		"views/combos.html",
1609		"views/honkform.html",
1610		"views/honk.html",
1611		"views/account.html",
1612		"views/about.html",
1613		"views/funzone.html",
1614		"views/login.html",
1615		"views/xzone.html",
1616		"views/header.html",
1617		"views/onts.html",
1618		"views/honkpage.js",
1619	)
1620	if !debug {
1621		assets := []string{"views/style.css", "views/local.css", "views/honkpage.js"}
1622		for _, s := range assets {
1623			savedassetparams[s] = getassetparam(s)
1624		}
1625	}
1626
1627	mux := mux.NewRouter()
1628	mux.Use(login.Checker)
1629
1630	posters := mux.Methods("POST").Subrouter()
1631	getters := mux.Methods("GET").Subrouter()
1632
1633	getters.HandleFunc("/", homepage)
1634	getters.HandleFunc("/home", homepage)
1635	getters.HandleFunc("/front", homepage)
1636	getters.HandleFunc("/robots.txt", nomoroboto)
1637	getters.HandleFunc("/rss", showrss)
1638	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
1639	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showhonk)
1640	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
1641	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
1642	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
1643	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
1644	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
1645	getters.HandleFunc("/a", avatate)
1646	getters.HandleFunc("/o", thelistingoftheontologies)
1647	getters.HandleFunc("/o/{name:.+}", showontology)
1648	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
1649	getters.HandleFunc("/emu/{xid:[[:alnum:]_.-]+}", serveemu)
1650	getters.HandleFunc("/meme/{xid:[[:alnum:]_.-]+}", servememe)
1651	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
1652
1653	getters.HandleFunc("/style.css", servecss)
1654	getters.HandleFunc("/local.css", servecss)
1655	getters.HandleFunc("/honkpage.js", serveasset)
1656	getters.HandleFunc("/about", servehtml)
1657	getters.HandleFunc("/login", servehtml)
1658	posters.HandleFunc("/dologin", login.LoginFunc)
1659	getters.HandleFunc("/logout", login.LogoutFunc)
1660	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
1661
1662	loggedin := mux.NewRoute().Subrouter()
1663	loggedin.Use(login.Required)
1664	loggedin.HandleFunc("/account", accountpage)
1665	loggedin.HandleFunc("/funzone", showfunzone)
1666	loggedin.HandleFunc("/chpass", dochpass)
1667	loggedin.HandleFunc("/atme", homepage)
1668	loggedin.HandleFunc("/hfcs", hfcspage)
1669	loggedin.HandleFunc("/xzone", xzone)
1670	loggedin.HandleFunc("/edit", edithonkpage)
1671	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submithonk)))
1672	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
1673	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
1674	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
1675	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
1676	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
1677	loggedin.HandleFunc("/honkers", showhonkers)
1678	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
1679	loggedin.HandleFunc("/h", showhonker)
1680	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
1681	loggedin.HandleFunc("/c", showcombos)
1682	loggedin.HandleFunc("/t", showconvoy)
1683	loggedin.HandleFunc("/q", showsearch)
1684	loggedin.HandleFunc("/hydra", webhydra)
1685	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
1686
1687	err = http.Serve(listener, mux)
1688	if err != nil {
1689		log.Fatal(err)
1690	}
1691}