all repos — honk @ 901dcdc8e82167d5145ea2b58aac40f6133063ed

my fork of honk

web.go (view raw)

   1//
   2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
   3//
   4// Permission to use, copy, modify, and distribute this software for any
   5// purpose with or without fee is hereby granted, provided that the above
   6// copyright notice and this permission notice appear in all copies.
   7//
   8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15
  16package main
  17
  18import (
  19	"bytes"
  20	"database/sql"
  21	"fmt"
  22	"html/template"
  23	"io"
  24	"log"
  25	notrand "math/rand"
  26	"net/http"
  27	"net/url"
  28	"os"
  29	"os/signal"
  30	"regexp"
  31	"sort"
  32	"strconv"
  33	"strings"
  34	"syscall"
  35	"time"
  36
  37	"github.com/gorilla/mux"
  38	"humungus.tedunangst.com/r/webs/cache"
  39	"humungus.tedunangst.com/r/webs/httpsig"
  40	"humungus.tedunangst.com/r/webs/junk"
  41	"humungus.tedunangst.com/r/webs/login"
  42	"humungus.tedunangst.com/r/webs/rss"
  43	"humungus.tedunangst.com/r/webs/templates"
  44)
  45
  46var readviews *templates.Template
  47
  48var userSep = "u"
  49var honkSep = "h"
  50
  51var debugMode = false
  52
  53func getuserstyle(u *login.UserInfo) template.CSS {
  54	if u == nil {
  55		return ""
  56	}
  57	user, _ := butwhatabout(u.Username)
  58	css := template.CSS("")
  59	if user.Options.SkinnyCSS {
  60		css += "main { max-width: 700px; }\n"
  61	}
  62	if user.Options.OmitImages {
  63		css += ".honk .noise img { display: none; }\n"
  64	}
  65	return css
  66}
  67
  68func getmaplink(u *login.UserInfo) string {
  69	if u == nil {
  70		return "osm"
  71	}
  72	user, _ := butwhatabout(u.Username)
  73	ml := user.Options.MapLink
  74	if ml == "" {
  75		ml = "osm"
  76	}
  77	return ml
  78}
  79
  80func getInfo(r *http.Request) map[string]interface{} {
  81	u := login.GetUserInfo(r)
  82	templinfo := make(map[string]interface{})
  83	templinfo["StyleParam"] = getassetparam(viewDir + "/views/style.css")
  84	templinfo["LocalStyleParam"] = getassetparam(viewDir + "/views/local.css")
  85	templinfo["JSParam"] = getassetparam(viewDir + "/views/honkpage.js")
  86	templinfo["UserStyle"] = getuserstyle(u)
  87	templinfo["ServerName"] = serverName
  88	templinfo["IconName"] = iconName
  89	templinfo["UserInfo"] = u
  90	templinfo["UserSep"] = userSep
  91	if u != nil {
  92		var combos []string
  93		combocache.Get(u.UserID, &combos)
  94		templinfo["Combos"] = combos
  95	}
  96	return templinfo
  97}
  98
  99func homepage(w http.ResponseWriter, r *http.Request) {
 100	templinfo := getInfo(r)
 101	u := login.GetUserInfo(r)
 102	var honks []*Honk
 103	var userid int64 = -1
 104
 105	templinfo["ServerMessage"] = serverMsg
 106	if u == nil || r.URL.Path == "/front" {
 107		switch r.URL.Path {
 108		case "/events":
 109			honks = geteventhonks(userid)
 110			templinfo["ServerMessage"] = "some recent and upcoming events"
 111		default:
 112			templinfo["ShowRSS"] = true
 113			honks = getpublichonks()
 114		}
 115	} else {
 116		userid = u.UserID
 117		switch r.URL.Path {
 118		case "/atme":
 119			templinfo["ServerMessage"] = "at me!"
 120			templinfo["PageName"] = "atme"
 121			honks = gethonksforme(userid, 0)
 122			honks = osmosis(honks, userid, false)
 123		case "/events":
 124			templinfo["ServerMessage"] = "some recent and upcoming events"
 125			templinfo["PageName"] = "events"
 126			honks = geteventhonks(userid)
 127			honks = osmosis(honks, userid, true)
 128		case "/first":
 129			templinfo["PageName"] = "first"
 130			honks = gethonksforuserfirstclass(userid, 0)
 131			honks = osmosis(honks, userid, true)
 132		case "/saved":
 133			templinfo["ServerMessage"] = "saved honks"
 134			templinfo["PageName"] = "saved"
 135			honks = getsavedhonks(userid, 0)
 136		default:
 137			templinfo["PageName"] = "home"
 138			honks = gethonksforuser(userid, 0)
 139			honks = osmosis(honks, userid, true)
 140		}
 141		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 142	}
 143
 144	honkpage(w, u, honks, templinfo)
 145}
 146
 147func showfunzone(w http.ResponseWriter, r *http.Request) {
 148	var emunames, memenames []string
 149	dir, err := os.Open(dataDir + "/emus")
 150	if err == nil {
 151		emunames, _ = dir.Readdirnames(0)
 152		dir.Close()
 153	}
 154	for i, e := range emunames {
 155		if len(e) > 4 {
 156			emunames[i] = e[:len(e)-4]
 157		}
 158	}
 159	dir, err = os.Open(dataDir + "/memes")
 160	if err == nil {
 161		memenames, _ = dir.Readdirnames(0)
 162		dir.Close()
 163	}
 164	templinfo := getInfo(r)
 165	templinfo["Emus"] = emunames
 166	templinfo["Memes"] = memenames
 167	err = readviews.Execute(w, "funzone.html", templinfo)
 168	if err != nil {
 169		log.Print(err)
 170	}
 171}
 172
 173func showrss(w http.ResponseWriter, r *http.Request) {
 174	name := mux.Vars(r)["name"]
 175
 176	var honks []*Honk
 177	if name != "" {
 178		honks = gethonksbyuser(name, false, 0)
 179	} else {
 180		honks = getpublichonks()
 181	}
 182	reverbolate(-1, honks)
 183
 184	home := fmt.Sprintf("https://%s/", serverName)
 185	base := home
 186	if name != "" {
 187		home += "u/" + name
 188		name += " "
 189	}
 190	feed := rss.Feed{
 191		Title:       name + "honk",
 192		Link:        home,
 193		Description: name + "honk rss",
 194		Image: &rss.Image{
 195			URL:   base + "icon.png",
 196			Title: name + "honk rss",
 197			Link:  home,
 198		},
 199	}
 200	var modtime time.Time
 201	for _, honk := range honks {
 202		if !firstclass(honk) {
 203			continue
 204		}
 205		desc := string(honk.HTML)
 206		if t := honk.Time; t != nil {
 207			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 208			if t.Duration != 0 {
 209				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 210			}
 211		}
 212		if p := honk.Place; p != nil {
 213			desc += string(templates.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 214				p.Url, p.Name, p.Latitude, p.Longitude))
 215		}
 216		for _, d := range honk.Donks {
 217			desc += string(templates.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 218				d.URL, d.Name))
 219		}
 220
 221		feed.Items = append(feed.Items, &rss.Item{
 222			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 223			Description: rss.CData{Data: desc},
 224			Link:        honk.URL,
 225			PubDate:     honk.Date.Format(time.RFC1123),
 226			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 227		})
 228		if honk.Date.After(modtime) {
 229			modtime = honk.Date
 230		}
 231	}
 232	if !debugMode {
 233		w.Header().Set("Cache-Control", "max-age=300")
 234		w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 235	}
 236
 237	err := feed.Write(w)
 238	if err != nil {
 239		log.Printf("error writing rss: %s", err)
 240	}
 241}
 242
 243func crappola(j junk.Junk) bool {
 244	t, _ := j.GetString("type")
 245	a, _ := j.GetString("actor")
 246	o, _ := j.GetString("object")
 247	if t == "Delete" && a == o {
 248		log.Printf("crappola from %s", a)
 249		return true
 250	}
 251	return false
 252}
 253
 254func ping(user *WhatAbout, who string) {
 255	var box *Box
 256	ok := boxofboxes.Get(who, &box)
 257	if !ok {
 258		log.Printf("no inbox to ping %s", who)
 259		return
 260	}
 261	j := junk.New()
 262	j["@context"] = itiswhatitis
 263	j["type"] = "Ping"
 264	j["id"] = user.URL + "/ping/" + xfiltrate()
 265	j["actor"] = user.URL
 266	j["to"] = who
 267	ki := ziggy(user.ID)
 268	if ki == nil {
 269		return
 270	}
 271	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 272	if err != nil {
 273		log.Printf("can't send ping: %s", err)
 274		return
 275	}
 276	log.Printf("sent ping to %s: %s", who, j["id"])
 277}
 278
 279func pong(user *WhatAbout, who string, obj string) {
 280	var box *Box
 281	ok := boxofboxes.Get(who, &box)
 282	if !ok {
 283		log.Printf("no inbox to pong %s", who)
 284		return
 285	}
 286	j := junk.New()
 287	j["@context"] = itiswhatitis
 288	j["type"] = "Pong"
 289	j["id"] = user.URL + "/pong/" + xfiltrate()
 290	j["actor"] = user.URL
 291	j["to"] = who
 292	j["object"] = obj
 293	ki := ziggy(user.ID)
 294	if ki == nil {
 295		return
 296	}
 297	err := PostJunk(ki.keyname, ki.seckey, box.In, j)
 298	if err != nil {
 299		log.Printf("can't send pong: %s", err)
 300		return
 301	}
 302}
 303
 304func inbox(w http.ResponseWriter, r *http.Request) {
 305	name := mux.Vars(r)["name"]
 306	user, err := butwhatabout(name)
 307	if err != nil {
 308		http.NotFound(w, r)
 309		return
 310	}
 311	if stealthmode(user.ID, r) {
 312		http.NotFound(w, r)
 313		return
 314	}
 315	var buf bytes.Buffer
 316	limiter := io.LimitReader(r.Body, 1*1024*1024)
 317	io.Copy(&buf, limiter)
 318	payload := buf.Bytes()
 319	j, err := junk.FromBytes(payload)
 320	if err != nil {
 321		log.Printf("bad payload: %s", err)
 322		io.WriteString(os.Stdout, "bad payload\n")
 323		os.Stdout.Write(payload)
 324		io.WriteString(os.Stdout, "\n")
 325		return
 326	}
 327
 328	if crappola(j) {
 329		return
 330	}
 331	what, _ := j.GetString("type")
 332	if what == "Like" {
 333		return
 334	}
 335	who, _ := j.GetString("actor")
 336	if rejectactor(user.ID, who) {
 337		return
 338	}
 339
 340	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 341	if err != nil && keyname != "" {
 342		savingthrow(keyname)
 343		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 344	}
 345	if err != nil {
 346		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 347		if keyname != "" {
 348			log.Printf("bad signature from %s", keyname)
 349			io.WriteString(os.Stdout, "bad payload\n")
 350			os.Stdout.Write(payload)
 351			io.WriteString(os.Stdout, "\n")
 352		}
 353		http.Error(w, "what did you call me?", http.StatusTeapot)
 354		return
 355	}
 356	origin := keymatch(keyname, who)
 357	if origin == "" {
 358		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 359		return
 360	}
 361
 362	switch what {
 363	case "Ping":
 364		obj, _ := j.GetString("id")
 365		log.Printf("ping from %s: %s", who, obj)
 366		pong(user, who, obj)
 367	case "Pong":
 368		obj, _ := j.GetString("object")
 369		log.Printf("pong from %s: %s", who, obj)
 370	case "Follow":
 371		obj, _ := j.GetString("object")
 372		if obj != user.URL {
 373			log.Printf("can't follow %s", obj)
 374			return
 375		}
 376		log.Printf("updating honker follow: %s", who)
 377
 378		var x string
 379		db := opendatabase()
 380		row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('dub', 'undub')", who, user.ID)
 381		err = row.Scan(&x)
 382		if err != sql.ErrNoRows {
 383			log.Printf("duplicate follow request: %s", who)
 384			_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, who, "undub")
 385			if err != nil {
 386				log.Printf("error updating honker: %s", err)
 387			}
 388		} else {
 389			stmtSaveDub.Exec(user.ID, who, who, "dub")
 390		}
 391		go rubadubdub(user, j)
 392	case "Accept":
 393		log.Printf("updating honker accept: %s", who)
 394		var name string
 395		db := opendatabase()
 396		row := db.QueryRow("select name from honkers where userid = ? and xid = ? and flavor in ('presub')",
 397			user.ID, who)
 398		err := row.Scan(&name)
 399		if err != nil {
 400			log.Printf("can't get honker name: %s", err)
 401			return
 402		}
 403		_, err = stmtUpdateFlavor.Exec("sub", user.ID, who, name, "presub")
 404		if err != nil {
 405			log.Printf("error updating honker: %s", err)
 406			return
 407		}
 408	case "Update":
 409		obj, ok := j.GetMap("object")
 410		if ok {
 411			what, _ := obj.GetString("type")
 412			switch what {
 413			case "Person":
 414				return
 415			case "Question":
 416				return
 417			case "Note":
 418				go xonksaver(user, j, origin)
 419				return
 420			}
 421		}
 422		log.Printf("unknown Update activity")
 423		fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 424		j.Write(fd)
 425		io.WriteString(fd, "\n")
 426		fd.Close()
 427
 428	case "Undo":
 429		obj, ok := j.GetMap("object")
 430		if !ok {
 431			log.Printf("unknown undo no object")
 432			return
 433		}
 434		what, _ := obj.GetString("type")
 435		switch what {
 436		case "Follow":
 437			log.Printf("updating honker undo: %s", who)
 438			_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, who, "dub")
 439			if err != nil {
 440				log.Printf("error updating honker: %s", err)
 441				return
 442			}
 443		case "Announce":
 444			xid, _ := obj.GetString("object")
 445			log.Printf("undo announce: %s", xid)
 446		case "Like":
 447		default:
 448			log.Printf("unknown undo: %s", what)
 449		}
 450	default:
 451		go xonksaver(user, j, origin)
 452	}
 453}
 454
 455func serverinbox(w http.ResponseWriter, r *http.Request) {
 456	if stealthmode(serverUID, r) {
 457		http.NotFound(w, r)
 458		return
 459	}
 460	var buf bytes.Buffer
 461	io.Copy(&buf, r.Body)
 462	payload := buf.Bytes()
 463	j, err := junk.FromBytes(payload)
 464	if err != nil {
 465		log.Printf("bad payload: %s", err)
 466		io.WriteString(os.Stdout, "bad payload\n")
 467		os.Stdout.Write(payload)
 468		io.WriteString(os.Stdout, "\n")
 469		return
 470	}
 471	if crappola(j) {
 472		return
 473	}
 474	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 475	if err != nil && keyname != "" {
 476		savingthrow(keyname)
 477		keyname, err = httpsig.VerifyRequest(r, payload, zaggy)
 478	}
 479	if err != nil {
 480		log.Printf("inbox message failed signature for %s from %s", keyname, r.Header.Get("X-Forwarded-For"))
 481		if keyname != "" {
 482			log.Printf("bad signature from %s", keyname)
 483			io.WriteString(os.Stdout, "bad payload\n")
 484			os.Stdout.Write(payload)
 485			io.WriteString(os.Stdout, "\n")
 486		}
 487		http.Error(w, "what did you call me?", http.StatusTeapot)
 488		return
 489	}
 490	user := getserveruser()
 491	who, _ := j.GetString("actor")
 492	origin := keymatch(keyname, who)
 493	if origin == "" {
 494		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 495		return
 496	}
 497	if rejectactor(user.ID, who) {
 498		return
 499	}
 500	re_ont := regexp.MustCompile("https://" + serverName + "/o/([[:alnum:]]+)")
 501	what, _ := j.GetString("type")
 502	log.Printf("server got a %s", what)
 503	switch what {
 504	case "Follow":
 505		obj, _ := j.GetString("object")
 506		if obj == user.URL {
 507			log.Printf("can't follow the server!")
 508			return
 509		}
 510		m := re_ont.FindStringSubmatch(obj)
 511		if len(m) != 2 {
 512			log.Printf("not sure how to handle this")
 513			return
 514		}
 515		ont := "#" + m[1]
 516		log.Printf("%s wants to follow %s", who, ont)
 517		var x string
 518		db := opendatabase()
 519		row := db.QueryRow("select xid from honkers where name = ? and xid = ? and userid = ? and flavor in ('dub', 'undub')", ont, who, user.ID)
 520		err = row.Scan(&x)
 521		if err != sql.ErrNoRows {
 522			log.Printf("duplicate follow request: %s", who)
 523			_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, ont, "undub")
 524			if err != nil {
 525				log.Printf("error updating honker: %s", err)
 526			}
 527		} else {
 528			stmtSaveDub.Exec(user.ID, ont, who, "dub")
 529		}
 530		go rubadubdub(user, j)
 531	case "Undo":
 532		obj, ok := j.GetMap("object")
 533		if !ok {
 534			log.Printf("unknown undo no object")
 535			return
 536		}
 537		what, _ := obj.GetString("type")
 538		if what != "Follow" {
 539			log.Printf("unknown undo: %s", what)
 540		}
 541		targ, _ := obj.GetString("object")
 542		m := re_ont.FindStringSubmatch(targ)
 543		if len(m) != 2 {
 544			log.Printf("not sure how to handle this")
 545			return
 546		}
 547		ont := "#" + m[1]
 548		log.Printf("updating honker undo: %s %s", who, ont)
 549		_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, ont, "dub")
 550		if err != nil {
 551			log.Printf("error updating honker: %s", err)
 552			return
 553		}
 554	}
 555}
 556
 557func serveractor(w http.ResponseWriter, r *http.Request) {
 558	if stealthmode(serverUID, r) {
 559		http.NotFound(w, r)
 560		return
 561	}
 562	user := getserveruser()
 563	j := junkuser(user)
 564	w.Write(j)
 565}
 566
 567func ximport(w http.ResponseWriter, r *http.Request) {
 568	u := login.GetUserInfo(r)
 569	xid := strings.TrimSpace(r.FormValue("xid"))
 570	xonk := getxonk(u.UserID, xid)
 571	if xonk == nil {
 572		p, _ := investigate(xid)
 573		if p != nil {
 574			xid = p.XID
 575		}
 576		j, err := GetJunk(xid)
 577		if err != nil {
 578			http.Error(w, "error getting external object", http.StatusInternalServerError)
 579			log.Printf("error getting external object: %s", err)
 580			return
 581		}
 582		allinjest(originate(xid), j)
 583		log.Printf("importing %s", xid)
 584		user, _ := butwhatabout(u.Username)
 585
 586		info, _ := somethingabout(j)
 587		if info == nil {
 588			xonk = xonksaver(user, j, originate(xid))
 589		} else if info.What == SomeActor {
 590			outbox, _ := j.GetString("outbox")
 591			gimmexonks(user, outbox)
 592			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 593			return
 594		} else if info.What == SomeCollection {
 595			gimmexonks(user, xid)
 596			http.Redirect(w, r, "/xzone", http.StatusSeeOther)
 597			return
 598		}
 599	}
 600	convoy := ""
 601	if xonk != nil {
 602		convoy = xonk.Convoy
 603	}
 604	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 605}
 606
 607func xzone(w http.ResponseWriter, r *http.Request) {
 608	u := login.GetUserInfo(r)
 609	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 610	if err != nil {
 611		log.Printf("query err: %s", err)
 612		return
 613	}
 614	defer rows.Close()
 615	var honkers []Honker
 616	for rows.Next() {
 617		var xid string
 618		rows.Scan(&xid)
 619		honkers = append(honkers, Honker{XID: xid})
 620	}
 621	rows.Close()
 622	for i, _ := range honkers {
 623		_, honkers[i].Handle = handles(honkers[i].XID)
 624	}
 625	templinfo := getInfo(r)
 626	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 627	templinfo["Honkers"] = honkers
 628	err = readviews.Execute(w, "xzone.html", templinfo)
 629	if err != nil {
 630		log.Print(err)
 631	}
 632}
 633
 634var oldoutbox = cache.New(cache.Options{Filler: func(name string) ([]byte, bool) {
 635	user, err := butwhatabout(name)
 636	if err != nil {
 637		return nil, false
 638	}
 639	honks := gethonksbyuser(name, false, 0)
 640	if len(honks) > 20 {
 641		honks = honks[0:20]
 642	}
 643
 644	var jonks []junk.Junk
 645	for _, h := range honks {
 646		j, _ := jonkjonk(user, h)
 647		jonks = append(jonks, j)
 648	}
 649
 650	j := junk.New()
 651	j["@context"] = itiswhatitis
 652	j["id"] = user.URL + "/outbox"
 653	j["attributedTo"] = user.URL
 654	j["type"] = "OrderedCollection"
 655	j["totalItems"] = len(jonks)
 656	j["orderedItems"] = jonks
 657
 658	return j.ToBytes(), true
 659}, Duration: 1 * time.Minute})
 660
 661func outbox(w http.ResponseWriter, r *http.Request) {
 662	name := mux.Vars(r)["name"]
 663	user, err := butwhatabout(name)
 664	if err != nil {
 665		http.NotFound(w, r)
 666		return
 667	}
 668	if stealthmode(user.ID, r) {
 669		http.NotFound(w, r)
 670		return
 671	}
 672	var j []byte
 673	ok := oldoutbox.Get(name, &j)
 674	if ok {
 675		w.Header().Set("Content-Type", theonetruename)
 676		w.Write(j)
 677	} else {
 678		http.NotFound(w, r)
 679	}
 680}
 681
 682var oldempties = cache.New(cache.Options{Filler: func(url string) ([]byte, bool) {
 683	colname := "/followers"
 684	if strings.HasSuffix(url, "/following") {
 685		colname = "/following"
 686	}
 687	user := fmt.Sprintf("https://%s%s", serverName, url[:len(url)-10])
 688	j := junk.New()
 689	j["@context"] = itiswhatitis
 690	j["id"] = user + colname
 691	j["attributedTo"] = user
 692	j["type"] = "OrderedCollection"
 693	j["totalItems"] = 0
 694	j["orderedItems"] = []junk.Junk{}
 695
 696	return j.ToBytes(), true
 697}})
 698
 699func emptiness(w http.ResponseWriter, r *http.Request) {
 700	name := mux.Vars(r)["name"]
 701	user, err := butwhatabout(name)
 702	if err != nil {
 703		http.NotFound(w, r)
 704		return
 705	}
 706	if stealthmode(user.ID, r) {
 707		http.NotFound(w, r)
 708		return
 709	}
 710	var j []byte
 711	ok := oldempties.Get(r.URL.Path, &j)
 712	if ok {
 713		w.Header().Set("Content-Type", theonetruename)
 714		w.Write(j)
 715	} else {
 716		http.NotFound(w, r)
 717	}
 718}
 719
 720func showuser(w http.ResponseWriter, r *http.Request) {
 721	name := mux.Vars(r)["name"]
 722	user, err := butwhatabout(name)
 723	if err != nil {
 724		log.Printf("user not found %s: %s", name, err)
 725		http.NotFound(w, r)
 726		return
 727	}
 728	if stealthmode(user.ID, r) {
 729		http.NotFound(w, r)
 730		return
 731	}
 732	if friendorfoe(r.Header.Get("Accept")) {
 733		j, ok := asjonker(name)
 734		if ok {
 735			w.Header().Set("Content-Type", theonetruename)
 736			w.Write(j)
 737		} else {
 738			http.NotFound(w, r)
 739		}
 740		return
 741	}
 742	u := login.GetUserInfo(r)
 743	honks := gethonksbyuser(name, u != nil && u.Username == name, 0)
 744	templinfo := getInfo(r)
 745	templinfo["Name"] = user.Name
 746	whatabout := user.About
 747	whatabout = markitzero(user.About)
 748	templinfo["WhatAbout"] = template.HTML(whatabout)
 749	templinfo["ServerMessage"] = ""
 750	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 751	honkpage(w, u, honks, templinfo)
 752}
 753
 754func showhonker(w http.ResponseWriter, r *http.Request) {
 755	u := login.GetUserInfo(r)
 756	name := mux.Vars(r)["name"]
 757	var honks []*Honk
 758	if name == "" {
 759		name = r.FormValue("xid")
 760		honks = gethonksbyxonker(u.UserID, name, 0)
 761	} else {
 762		honks = gethonksbyhonker(u.UserID, name, 0)
 763	}
 764	msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, name, name)
 765	templinfo := getInfo(r)
 766	templinfo["PageName"] = "honker"
 767	templinfo["PageArg"] = name
 768	templinfo["ServerMessage"] = msg
 769	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 770	honkpage(w, u, honks, templinfo)
 771}
 772
 773func showcombo(w http.ResponseWriter, r *http.Request) {
 774	name := mux.Vars(r)["name"]
 775	u := login.GetUserInfo(r)
 776	honks := gethonksbycombo(u.UserID, name, 0)
 777	honks = osmosis(honks, u.UserID, true)
 778	templinfo := getInfo(r)
 779	templinfo["PageName"] = "combo"
 780	templinfo["PageArg"] = name
 781	templinfo["ServerMessage"] = "honks by combo: " + name
 782	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 783	honkpage(w, u, honks, templinfo)
 784}
 785func showconvoy(w http.ResponseWriter, r *http.Request) {
 786	c := r.FormValue("c")
 787	u := login.GetUserInfo(r)
 788	honks := gethonksbyconvoy(u.UserID, c, 0)
 789	templinfo := getInfo(r)
 790	if len(honks) > 0 {
 791		templinfo["TopHID"] = honks[0].ID
 792	}
 793	honks = osmosis(honks, u.UserID, false)
 794	reversehonks(honks)
 795	templinfo["PageName"] = "convoy"
 796	templinfo["PageArg"] = c
 797	templinfo["ServerMessage"] = "honks in convoy: " + c
 798	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 799	honkpage(w, u, honks, templinfo)
 800}
 801func showsearch(w http.ResponseWriter, r *http.Request) {
 802	q := r.FormValue("q")
 803	u := login.GetUserInfo(r)
 804	honks := gethonksbysearch(u.UserID, q, 0)
 805	templinfo := getInfo(r)
 806	templinfo["PageName"] = "search"
 807	templinfo["PageArg"] = q
 808	templinfo["ServerMessage"] = "honks for search: " + q
 809	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 810	honkpage(w, u, honks, templinfo)
 811}
 812func showontology(w http.ResponseWriter, r *http.Request) {
 813	name := mux.Vars(r)["name"]
 814	u := login.GetUserInfo(r)
 815	var userid int64 = -1
 816	if u != nil {
 817		userid = u.UserID
 818	}
 819	honks := gethonksbyontology(userid, "#"+name, 0)
 820	if friendorfoe(r.Header.Get("Accept")) {
 821		if len(honks) > 40 {
 822			honks = honks[0:40]
 823		}
 824
 825		var xids []string
 826		for _, h := range honks {
 827			xids = append(xids, h.XID)
 828		}
 829
 830		user := getserveruser()
 831
 832		j := junk.New()
 833		j["@context"] = itiswhatitis
 834		j["id"] = fmt.Sprintf("https://%s/o/%s", serverName, name)
 835		j["name"] = "#" + name
 836		j["attributedTo"] = user.URL
 837		j["type"] = "OrderedCollection"
 838		j["totalItems"] = len(xids)
 839		j["orderedItems"] = xids
 840
 841		j.Write(w)
 842		return
 843	}
 844
 845	templinfo := getInfo(r)
 846	templinfo["ServerMessage"] = "honks by ontology: " + name
 847	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 848	honkpage(w, u, honks, templinfo)
 849}
 850
 851type Ont struct {
 852	Name  string
 853	Count int64
 854}
 855
 856func thelistingoftheontologies(w http.ResponseWriter, r *http.Request) {
 857	u := login.GetUserInfo(r)
 858	var userid int64 = -1
 859	if u != nil {
 860		userid = u.UserID
 861	}
 862	rows, err := stmtAllOnts.Query(userid)
 863	if err != nil {
 864		log.Printf("selection error: %s", err)
 865		return
 866	}
 867	defer rows.Close()
 868	var onts []Ont
 869	for rows.Next() {
 870		var o Ont
 871		err := rows.Scan(&o.Name, &o.Count)
 872		if err != nil {
 873			log.Printf("error scanning ont: %s", err)
 874			continue
 875		}
 876		if len(o.Name) > 24 {
 877			continue
 878		}
 879		o.Name = o.Name[1:]
 880		onts = append(onts, o)
 881	}
 882	sort.Slice(onts, func(i, j int) bool {
 883		return onts[i].Name < onts[j].Name
 884	})
 885	if u == nil && !debugMode {
 886		w.Header().Set("Cache-Control", "max-age=300")
 887	}
 888	templinfo := getInfo(r)
 889	templinfo["Onts"] = onts
 890	err = readviews.Execute(w, "onts.html", templinfo)
 891	if err != nil {
 892		log.Print(err)
 893	}
 894}
 895
 896type Track struct {
 897	xid string
 898	who string
 899}
 900
 901func getbacktracks(xid string) []string {
 902	c := make(chan bool)
 903	dumptracks <- c
 904	<-c
 905	row := stmtGetTracks.QueryRow(xid)
 906	var rawtracks string
 907	err := row.Scan(&rawtracks)
 908	if err != nil {
 909		if err != sql.ErrNoRows {
 910			log.Printf("error scanning tracks: %s", err)
 911		}
 912		return nil
 913	}
 914	var rcpts []string
 915	for _, f := range strings.Split(rawtracks, " ") {
 916		idx := strings.LastIndexByte(f, '#')
 917		if idx != -1 {
 918			f = f[:idx]
 919		}
 920		if !strings.HasPrefix(f, "https://") {
 921			f = fmt.Sprintf("%%https://%s/inbox", f)
 922		}
 923		rcpts = append(rcpts, f)
 924	}
 925	return rcpts
 926}
 927
 928func savetracks(tracks map[string][]string) {
 929	db := opendatabase()
 930	tx, err := db.Begin()
 931	if err != nil {
 932		log.Printf("savetracks begin error: %s", err)
 933		return
 934	}
 935	defer func() {
 936		err := tx.Commit()
 937		if err != nil {
 938			log.Printf("savetracks commit error: %s", err)
 939		}
 940
 941	}()
 942	stmtGetTracks, err := tx.Prepare("select fetches from tracks where xid = ?")
 943	if err != nil {
 944		log.Printf("savetracks error: %s", err)
 945		return
 946	}
 947	stmtNewTracks, err := tx.Prepare("insert into tracks (xid, fetches) values (?, ?)")
 948	if err != nil {
 949		log.Printf("savetracks error: %s", err)
 950		return
 951	}
 952	stmtUpdateTracks, err := tx.Prepare("update tracks set fetches = ? where xid = ?")
 953	if err != nil {
 954		log.Printf("savetracks error: %s", err)
 955		return
 956	}
 957	count := 0
 958	for xid, f := range tracks {
 959		count += len(f)
 960		var prev string
 961		row := stmtGetTracks.QueryRow(xid)
 962		err := row.Scan(&prev)
 963		if err == sql.ErrNoRows {
 964			f = oneofakind(f)
 965			stmtNewTracks.Exec(xid, strings.Join(f, " "))
 966		} else if err == nil {
 967			all := append(strings.Split(prev, " "), f...)
 968			all = oneofakind(all)
 969			stmtUpdateTracks.Exec(strings.Join(all, " "))
 970		} else {
 971			log.Printf("savetracks error: %s", err)
 972		}
 973	}
 974	log.Printf("saved %d new fetches", count)
 975}
 976
 977var trackchan = make(chan Track)
 978var dumptracks = make(chan chan bool)
 979
 980func tracker() {
 981	timeout := 4 * time.Minute
 982	sleeper := time.NewTimer(timeout)
 983	tracks := make(map[string][]string)
 984	for {
 985		select {
 986		case track := <-trackchan:
 987			tracks[track.xid] = append(tracks[track.xid], track.who)
 988		case <-sleeper.C:
 989			if len(tracks) > 0 {
 990				go savetracks(tracks)
 991				tracks = make(map[string][]string)
 992			}
 993			sleeper.Reset(timeout)
 994		case c := <-dumptracks:
 995			if len(tracks) > 0 {
 996				savetracks(tracks)
 997			}
 998			c <- true
 999		case <-endoftheworld:
1000			if len(tracks) > 0 {
1001				savetracks(tracks)
1002			}
1003			readyalready <- true
1004			return
1005		}
1006	}
1007}
1008
1009var re_keyholder = regexp.MustCompile(`keyId="([^"]+)"`)
1010
1011func trackback(xid string, r *http.Request) {
1012	agent := r.UserAgent()
1013	who := originate(agent)
1014	sig := r.Header.Get("Signature")
1015	if sig != "" {
1016		m := re_keyholder.FindStringSubmatch(sig)
1017		if len(m) == 2 {
1018			who = m[1]
1019		}
1020	}
1021	if who != "" {
1022		trackchan <- Track{xid: xid, who: who}
1023	}
1024}
1025
1026func showonehonk(w http.ResponseWriter, r *http.Request) {
1027	name := mux.Vars(r)["name"]
1028	user, err := butwhatabout(name)
1029	if err != nil {
1030		http.NotFound(w, r)
1031		return
1032	}
1033	if stealthmode(user.ID, r) {
1034		http.NotFound(w, r)
1035		return
1036	}
1037	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
1038
1039	if friendorfoe(r.Header.Get("Accept")) {
1040		j, ok := gimmejonk(xid)
1041		if ok {
1042			trackback(xid, r)
1043			w.Header().Set("Content-Type", theonetruename)
1044			w.Write(j)
1045		} else {
1046			http.NotFound(w, r)
1047		}
1048		return
1049	}
1050	honk := getxonk(user.ID, xid)
1051	if honk == nil {
1052		http.NotFound(w, r)
1053		return
1054	}
1055	u := login.GetUserInfo(r)
1056	if u != nil && u.UserID != user.ID {
1057		u = nil
1058	}
1059	if !honk.Public {
1060		if u == nil {
1061			http.NotFound(w, r)
1062			return
1063
1064		}
1065		templinfo := getInfo(r)
1066		templinfo["ServerMessage"] = "one honk maybe more"
1067		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1068		honkpage(w, u, []*Honk{honk}, templinfo)
1069		return
1070	}
1071	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy, 0)
1072	reversehonks(rawhonks)
1073	var honks []*Honk
1074	for _, h := range rawhonks {
1075		if h.XID == xid && len(honks) != 0 {
1076			h.Style += " glow"
1077		}
1078		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
1079			honks = append(honks, h)
1080		}
1081	}
1082
1083	templinfo := getInfo(r)
1084	templinfo["ServerMessage"] = "one honk maybe more"
1085	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1086	honkpage(w, u, honks, templinfo)
1087}
1088
1089func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
1090	var userid int64 = -1
1091	if u != nil {
1092		userid = u.UserID
1093	}
1094	reverbolate(userid, honks)
1095	templinfo["Honks"] = honks
1096	templinfo["MapLink"] = getmaplink(u)
1097	if templinfo["TopHID"] == nil {
1098		if len(honks) > 0 {
1099			templinfo["TopHID"] = honks[0].ID
1100		} else {
1101			templinfo["TopHID"] = 0
1102		}
1103	}
1104	if u == nil && !debugMode {
1105		w.Header().Set("Cache-Control", "max-age=60")
1106	}
1107	err := readviews.Execute(w, "honkpage.html", templinfo)
1108	if err != nil {
1109		log.Print(err)
1110	}
1111}
1112
1113func saveuser(w http.ResponseWriter, r *http.Request) {
1114	whatabout := r.FormValue("whatabout")
1115	whatabout = strings.Replace(whatabout, "\r", "", -1)
1116	u := login.GetUserInfo(r)
1117	user, _ := butwhatabout(u.Username)
1118	db := opendatabase()
1119	options := user.Options
1120	if r.FormValue("skinny") == "skinny" {
1121		options.SkinnyCSS = true
1122	} else {
1123		options.SkinnyCSS = false
1124	}
1125	if r.FormValue("omitimages") == "omitimages" {
1126		options.OmitImages = true
1127	} else {
1128		options.OmitImages = false
1129	}
1130	if r.FormValue("maps") == "apple" {
1131		options.MapLink = "apple"
1132	} else {
1133		options.MapLink = ""
1134	}
1135	options.Reaction = r.FormValue("reaction")
1136	if ava := re_avatar.FindString(whatabout); ava != "" {
1137		whatabout = re_avatar.ReplaceAllString(whatabout, "")
1138		ava = ava[7:]
1139		if ava[0] == ' ' {
1140			ava = ava[1:]
1141		}
1142		options.Avatar = fmt.Sprintf("https://%s/meme/%s", serverName, ava)
1143	} else {
1144		options.Avatar = ""
1145	}
1146	whatabout = strings.TrimSpace(whatabout)
1147	j, err := jsonify(options)
1148	if err == nil {
1149		_, err = db.Exec("update users set about = ?, options = ? where username = ?", whatabout, j, u.Username)
1150	}
1151	if err != nil {
1152		log.Printf("error bouting what: %s", err)
1153	}
1154	somenamedusers.Clear(u.Username)
1155	somenumberedusers.Clear(u.UserID)
1156
1157	http.Redirect(w, r, "/account", http.StatusSeeOther)
1158}
1159
1160func submitbonk(w http.ResponseWriter, r *http.Request) {
1161	xid := r.FormValue("xid")
1162	userinfo := login.GetUserInfo(r)
1163	user, _ := butwhatabout(userinfo.Username)
1164
1165	log.Printf("bonking %s", xid)
1166
1167	xonk := getxonk(userinfo.UserID, xid)
1168	if xonk == nil {
1169		return
1170	}
1171	if !xonk.Public {
1172		return
1173	}
1174	if xonk.IsBonked() {
1175		return
1176	}
1177	donksforhonks([]*Honk{xonk})
1178
1179	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
1180	if err != nil {
1181		log.Printf("error acking bonk: %s", err)
1182	}
1183
1184	oonker := xonk.Oonker
1185	if oonker == "" {
1186		oonker = xonk.Honker
1187	}
1188	dt := time.Now().UTC()
1189	bonk := &Honk{
1190		UserID:   userinfo.UserID,
1191		Username: userinfo.Username,
1192		What:     "bonk",
1193		Honker:   user.URL,
1194		Oonker:   oonker,
1195		XID:      xonk.XID,
1196		RID:      xonk.RID,
1197		Noise:    xonk.Noise,
1198		Precis:   xonk.Precis,
1199		URL:      xonk.URL,
1200		Date:     dt,
1201		Donks:    xonk.Donks,
1202		Whofore:  2,
1203		Convoy:   xonk.Convoy,
1204		Audience: []string{thewholeworld, oonker},
1205		Public:   true,
1206		Format:   "html",
1207		Place:    xonk.Place,
1208		Onts:     xonk.Onts,
1209		Time:     xonk.Time,
1210	}
1211
1212	err = savehonk(bonk)
1213	if err != nil {
1214		log.Printf("uh oh")
1215		return
1216	}
1217
1218	go honkworldwide(user, bonk)
1219
1220	if r.FormValue("js") != "1" {
1221		templinfo := getInfo(r)
1222		templinfo["ServerMessage"] = "Bonked!"
1223		err = readviews.Execute(w, "msg.html", templinfo)
1224		if err != nil {
1225			log.Print(err)
1226		}
1227	}
1228}
1229
1230func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string) {
1231	zonk := &Honk{
1232		What:     what,
1233		XID:      xonk.XID,
1234		Date:     time.Now().UTC(),
1235		Audience: oneofakind(xonk.Audience),
1236	}
1237	zonk.Public = loudandproud(zonk.Audience)
1238
1239	log.Printf("announcing %sed honk: %s", what, xonk.XID)
1240	go honkworldwide(user, zonk)
1241}
1242
1243func zonkit(w http.ResponseWriter, r *http.Request) {
1244	wherefore := r.FormValue("wherefore")
1245	what := r.FormValue("what")
1246	userinfo := login.GetUserInfo(r)
1247	user, _ := butwhatabout(userinfo.Username)
1248
1249	if wherefore == "save" {
1250		xonk := getxonk(userinfo.UserID, what)
1251		if xonk != nil {
1252			_, err := stmtUpdateFlags.Exec(flagIsSaved, xonk.ID)
1253			if err != nil {
1254				log.Printf("error saving: %s", err)
1255			}
1256		}
1257		return
1258	}
1259
1260	if wherefore == "unsave" {
1261		xonk := getxonk(userinfo.UserID, what)
1262		if xonk != nil {
1263			_, err := stmtClearFlags.Exec(flagIsSaved, xonk.ID)
1264			if err != nil {
1265				log.Printf("error unsaving: %s", err)
1266			}
1267		}
1268		return
1269	}
1270
1271	if wherefore == "react" {
1272		xonk := getxonk(userinfo.UserID, what)
1273		if xonk != nil {
1274			_, err := stmtUpdateFlags.Exec(flagIsReacted, xonk.ID)
1275			if err != nil {
1276				log.Printf("error saving: %s", err)
1277			}
1278			sendzonkofsorts(xonk, user, "react")
1279		}
1280		return
1281	}
1282
1283	// my hammer is too big, oh well
1284	defer oldjonks.Flush()
1285
1286	if wherefore == "ack" {
1287		xonk := getxonk(userinfo.UserID, what)
1288		if xonk != nil && !xonk.IsAcked() {
1289			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
1290			if err != nil {
1291				log.Printf("error acking: %s", err)
1292			}
1293			sendzonkofsorts(xonk, user, "ack")
1294		}
1295		return
1296	}
1297
1298	if wherefore == "deack" {
1299		xonk := getxonk(userinfo.UserID, what)
1300		if xonk != nil && xonk.IsAcked() {
1301			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
1302			if err != nil {
1303				log.Printf("error deacking: %s", err)
1304			}
1305			sendzonkofsorts(xonk, user, "deack")
1306		}
1307		return
1308	}
1309
1310	if wherefore == "unbonk" {
1311		xonk := getbonk(userinfo.UserID, what)
1312		if xonk != nil {
1313			deletehonk(xonk.ID)
1314			xonk = getxonk(userinfo.UserID, what)
1315			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
1316			if err != nil {
1317				log.Printf("error unbonking: %s", err)
1318			}
1319			sendzonkofsorts(xonk, user, "unbonk")
1320		}
1321		return
1322	}
1323
1324	if wherefore == "untag" {
1325		xonk := getxonk(userinfo.UserID, what)
1326		if xonk != nil {
1327			_, err := stmtUpdateFlags.Exec(flagIsUntagged, xonk.ID)
1328			if err != nil {
1329				log.Printf("error untagging: %s", err)
1330			}
1331		}
1332		var badparents map[string]bool
1333		untagged.GetAndLock(userinfo.UserID, &badparents)
1334		badparents[what] = true
1335		untagged.Unlock()
1336		return
1337	}
1338
1339	log.Printf("zonking %s %s", wherefore, what)
1340	if wherefore == "zonk" {
1341		xonk := getxonk(userinfo.UserID, what)
1342		if xonk != nil {
1343			deletehonk(xonk.ID)
1344			if xonk.Whofore == 2 || xonk.Whofore == 3 {
1345				sendzonkofsorts(xonk, user, "zonk")
1346			}
1347		}
1348	}
1349	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
1350	if err != nil {
1351		log.Printf("error saving zonker: %s", err)
1352		return
1353	}
1354}
1355
1356func edithonkpage(w http.ResponseWriter, r *http.Request) {
1357	u := login.GetUserInfo(r)
1358	user, _ := butwhatabout(u.Username)
1359	xid := r.FormValue("xid")
1360	honk := getxonk(u.UserID, xid)
1361	if !canedithonk(user, honk) {
1362		http.Error(w, "no editing that please", http.StatusInternalServerError)
1363		return
1364	}
1365
1366	noise := honk.Noise
1367
1368	honks := []*Honk{honk}
1369	donksforhonks(honks)
1370	reverbolate(u.UserID, honks)
1371	templinfo := getInfo(r)
1372	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1373	templinfo["Honks"] = honks
1374	templinfo["MapLink"] = getmaplink(u)
1375	templinfo["Noise"] = noise
1376	templinfo["SavedPlace"] = honk.Place
1377	if tm := honk.Time; tm != nil {
1378		templinfo["ShowTime"] = ";"
1379		templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1380		templinfo["Duration"] = tm.Duration
1381	}
1382	templinfo["ServerMessage"] = "honk edit 2"
1383	templinfo["IsPreview"] = true
1384	templinfo["UpdateXID"] = honk.XID
1385	if len(honk.Donks) > 0 {
1386		templinfo["SavedFile"] = honk.Donks[0].XID
1387	}
1388	err := readviews.Execute(w, "honkpage.html", templinfo)
1389	if err != nil {
1390		log.Print(err)
1391	}
1392}
1393
1394func newhonkpage(w http.ResponseWriter, r *http.Request) {
1395	u := login.GetUserInfo(r)
1396	rid := r.FormValue("rid")
1397	noise := ""
1398
1399	xonk := getxonk(u.UserID, rid)
1400	if xonk != nil {
1401		_, replto := handles(xonk.Honker)
1402		if replto != "" {
1403			noise = "@" + replto + " "
1404		}
1405	}
1406
1407	templinfo := getInfo(r)
1408	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1409	templinfo["InReplyTo"] = rid
1410	templinfo["Noise"] = noise
1411	templinfo["ServerMessage"] = "compose honk"
1412	templinfo["IsPreview"] = true
1413	err := readviews.Execute(w, "honkpage.html", templinfo)
1414	if err != nil {
1415		log.Print(err)
1416	}
1417}
1418
1419func canedithonk(user *WhatAbout, honk *Honk) bool {
1420	if honk == nil || honk.Honker != user.URL || honk.What == "bonk" {
1421		return false
1422	}
1423	return true
1424}
1425
1426func submitwebhonk(w http.ResponseWriter, r *http.Request) {
1427	submithonk(w, r, false)
1428}
1429
1430// what a hot mess this function is
1431func submithonk(w http.ResponseWriter, r *http.Request, isAPI bool) {
1432	rid := r.FormValue("rid")
1433	noise := r.FormValue("noise")
1434
1435	userinfo := login.GetUserInfo(r)
1436	user, _ := butwhatabout(userinfo.Username)
1437
1438	dt := time.Now().UTC()
1439	updatexid := r.FormValue("updatexid")
1440	var honk *Honk
1441	if updatexid != "" {
1442		honk = getxonk(userinfo.UserID, updatexid)
1443		if !canedithonk(user, honk) {
1444			http.Error(w, "no editing that please", http.StatusInternalServerError)
1445			return
1446		}
1447		honk.Date = dt
1448		honk.What = "update"
1449		honk.Format = "markdown"
1450	} else {
1451		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
1452		what := "honk"
1453		if rid != "" {
1454			what = "tonk"
1455		}
1456		honk = &Honk{
1457			UserID:   userinfo.UserID,
1458			Username: userinfo.Username,
1459			What:     what,
1460			Honker:   user.URL,
1461			XID:      xid,
1462			Date:     dt,
1463			Format:   "markdown",
1464		}
1465	}
1466
1467	noise = strings.Replace(noise, "\r", "", -1)
1468	noise = quickrename(noise, userinfo.UserID)
1469	noise = hooterize(noise)
1470	honk.Mentions = bunchofgrapes(noise)
1471	honk.Noise = noise
1472	translate(honk)
1473
1474	var convoy string
1475	if rid != "" {
1476		xonk := getxonk(userinfo.UserID, rid)
1477		if xonk != nil {
1478			if xonk.Public {
1479				honk.Audience = append(honk.Audience, xonk.Audience...)
1480			}
1481			convoy = xonk.Convoy
1482		} else {
1483			xonkaud, c := whosthere(rid)
1484			honk.Audience = append(honk.Audience, xonkaud...)
1485			convoy = c
1486		}
1487		for i, a := range honk.Audience {
1488			if a == thewholeworld {
1489				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
1490				break
1491			}
1492		}
1493		honk.RID = rid
1494		if xonk.Precis != "" && honk.Precis == "" {
1495			honk.Precis = xonk.Precis
1496			if !(strings.HasPrefix(honk.Precis, "DZ:") || strings.HasPrefix(honk.Precis, "re: re: re: ")) {
1497				honk.Precis = "re: " + honk.Precis
1498			}
1499		}
1500	} else {
1501		honk.Audience = []string{thewholeworld}
1502	}
1503	if honk.Noise != "" && honk.Noise[0] == '@' {
1504		honk.Audience = append(grapevine(honk.Noise), honk.Audience...)
1505	} else {
1506		honk.Audience = append(honk.Audience, grapevine(honk.Noise)...)
1507	}
1508
1509	if convoy == "" {
1510		convoy = "data:,electrichonkytonk-" + xfiltrate()
1511	}
1512	butnottooloud(honk.Audience)
1513	honk.Audience = oneofakind(honk.Audience)
1514	if len(honk.Audience) == 0 {
1515		log.Printf("honk to nowhere")
1516		http.Error(w, "honk to nowhere...", http.StatusNotFound)
1517		return
1518	}
1519	honk.Public = loudandproud(honk.Audience)
1520	honk.Convoy = convoy
1521
1522	donkxid := r.FormValue("donkxid")
1523	if donkxid == "" {
1524		file, filehdr, err := r.FormFile("donk")
1525		if err == nil {
1526			var buf bytes.Buffer
1527			io.Copy(&buf, file)
1528			file.Close()
1529			data := buf.Bytes()
1530			xid := xfiltrate()
1531			var media, name string
1532			img, err := shrinkit(data)
1533			if err == nil {
1534				data = img.Data
1535				format := img.Format
1536				media = "image/" + format
1537				if format == "jpeg" {
1538					format = "jpg"
1539				}
1540				name = xid + "." + format
1541				xid = name
1542			} else {
1543				ct := http.DetectContentType(data)
1544				switch ct {
1545				case "application/pdf":
1546					maxsize := 1000000
1547					if len(data) > maxsize {
1548						log.Printf("bad image: %s too much pdf: %d", err, len(data))
1549						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1550						return
1551					}
1552					media = ct
1553					xid += ".pdf"
1554					name = filehdr.Filename
1555					if name == "" {
1556						name = xid
1557					}
1558				default:
1559					maxsize := 100000
1560					if len(data) > maxsize {
1561						log.Printf("bad image: %s too much text: %d", err, len(data))
1562						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1563						return
1564					}
1565					for i := 0; i < len(data); i++ {
1566						if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1567							log.Printf("bad image: %s not text: %d", err, data[i])
1568							http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1569							return
1570						}
1571					}
1572					media = "text/plain"
1573					xid += ".txt"
1574					name = filehdr.Filename
1575					if name == "" {
1576						name = xid
1577					}
1578				}
1579			}
1580			desc := strings.TrimSpace(r.FormValue("donkdesc"))
1581			if desc == "" {
1582				desc = name
1583			}
1584			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1585			fileid, err := savefile(xid, name, desc, url, media, true, data)
1586			if err != nil {
1587				log.Printf("unable to save image: %s", err)
1588				return
1589			}
1590			d := &Donk{
1591				FileID: fileid,
1592				XID:    xid,
1593				Desc:   desc,
1594				URL:    url,
1595				Local:  true,
1596			}
1597			honk.Donks = append(honk.Donks, d)
1598			donkxid = xid
1599		}
1600	} else {
1601		xid := donkxid
1602		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1603		donk := finddonk(url)
1604		if donk != nil {
1605			honk.Donks = append(honk.Donks, donk)
1606		} else {
1607			log.Printf("can't find file: %s", xid)
1608		}
1609	}
1610	memetize(honk)
1611	imaginate(honk)
1612
1613	placename := strings.TrimSpace(r.FormValue("placename"))
1614	placelat := strings.TrimSpace(r.FormValue("placelat"))
1615	placelong := strings.TrimSpace(r.FormValue("placelong"))
1616	placeurl := strings.TrimSpace(r.FormValue("placeurl"))
1617	if placename != "" || placelat != "" || placelong != "" || placeurl != "" {
1618		p := new(Place)
1619		p.Name = placename
1620		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1621		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1622		p.Url = placeurl
1623		honk.Place = p
1624	}
1625	timestart := strings.TrimSpace(r.FormValue("timestart"))
1626	if timestart != "" {
1627		t := new(Time)
1628		now := time.Now().Local()
1629		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1630			start, err := time.ParseInLocation(layout, timestart, now.Location())
1631			if err == nil {
1632				if start.Year() == 0 {
1633					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1634				}
1635				t.StartTime = start
1636				break
1637			}
1638		}
1639		timeend := r.FormValue("timeend")
1640		dur := parseDuration(timeend)
1641		if dur != 0 {
1642			t.Duration = Duration(dur)
1643		}
1644		if !t.StartTime.IsZero() {
1645			honk.What = "event"
1646			honk.Time = t
1647		}
1648	}
1649
1650	if honk.Public {
1651		honk.Whofore = 2
1652	} else {
1653		honk.Whofore = 3
1654	}
1655
1656	// back to markdown
1657	honk.Noise = noise
1658
1659	if r.FormValue("preview") == "preview" {
1660		honks := []*Honk{honk}
1661		reverbolate(userinfo.UserID, honks)
1662		templinfo := getInfo(r)
1663		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1664		templinfo["Honks"] = honks
1665		templinfo["MapLink"] = getmaplink(userinfo)
1666		templinfo["InReplyTo"] = r.FormValue("rid")
1667		templinfo["Noise"] = r.FormValue("noise")
1668		templinfo["SavedFile"] = donkxid
1669		if tm := honk.Time; tm != nil {
1670			templinfo["ShowTime"] = ";"
1671			templinfo["StartTime"] = tm.StartTime.Format("2006-01-02 03:04")
1672			templinfo["Duration"] = tm.Duration
1673		}
1674		templinfo["IsPreview"] = true
1675		templinfo["UpdateXID"] = updatexid
1676		templinfo["ServerMessage"] = "honk preview"
1677		err := readviews.Execute(w, "honkpage.html", templinfo)
1678		if err != nil {
1679			log.Print(err)
1680		}
1681		return
1682	}
1683
1684	if updatexid != "" {
1685		updatehonk(honk)
1686		oldjonks.Clear(honk.XID)
1687	} else {
1688		err := savehonk(honk)
1689		if err != nil {
1690			log.Printf("uh oh")
1691			return
1692		}
1693	}
1694
1695	// reload for consistency
1696	honk.Donks = nil
1697	donksforhonks([]*Honk{honk})
1698
1699	go honkworldwide(user, honk)
1700
1701	if isAPI {
1702		w.Write([]byte(honk.XID))
1703	} else {
1704		http.Redirect(w, r, honk.XID[len(serverName)+8:], http.StatusSeeOther)
1705	}
1706}
1707
1708func showhonkers(w http.ResponseWriter, r *http.Request) {
1709	userinfo := login.GetUserInfo(r)
1710	templinfo := getInfo(r)
1711	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1712	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1713	err := readviews.Execute(w, "honkers.html", templinfo)
1714	if err != nil {
1715		log.Print(err)
1716	}
1717}
1718
1719var combocache = cache.New(cache.Options{Filler: func(userid int64) ([]string, bool) {
1720	honkers := gethonkers(userid)
1721	var combos []string
1722	for _, h := range honkers {
1723		combos = append(combos, h.Combos...)
1724	}
1725	for i, c := range combos {
1726		if c == "-" {
1727			combos[i] = ""
1728		}
1729	}
1730	combos = oneofakind(combos)
1731	sort.Strings(combos)
1732	return combos, true
1733}, Invalidator: &honkerinvalidator})
1734
1735func showcombos(w http.ResponseWriter, r *http.Request) {
1736	userinfo := login.GetUserInfo(r)
1737	var combos []string
1738	combocache.Get(userinfo.UserID, &combos)
1739	templinfo := getInfo(r)
1740	err := readviews.Execute(w, "combos.html", templinfo)
1741	if err != nil {
1742		log.Print(err)
1743	}
1744}
1745
1746func submithonker(w http.ResponseWriter, r *http.Request) {
1747	u := login.GetUserInfo(r)
1748	name := strings.TrimSpace(r.FormValue("name"))
1749	url := strings.TrimSpace(r.FormValue("url"))
1750	peep := r.FormValue("peep")
1751	combos := strings.TrimSpace(r.FormValue("combos"))
1752	combos = " " + combos + " "
1753	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1754
1755	var meta HonkerMeta
1756	meta.Notes = strings.TrimSpace(r.FormValue("notes"))
1757	mj, _ := jsonify(&meta)
1758
1759	defer honkerinvalidator.Clear(u.UserID)
1760
1761	if honkerid > 0 {
1762		goodbye := r.FormValue("goodbye")
1763		if goodbye == "F" {
1764			db := opendatabase()
1765			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1766				honkerid, u.UserID)
1767			err := row.Scan(&url)
1768			if err != nil {
1769				log.Printf("can't get honker xid: %s", err)
1770				return
1771			}
1772			log.Printf("unsubscribing from %s", url)
1773			user, _ := butwhatabout(u.Username)
1774			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, name, "sub")
1775			if err != nil {
1776				log.Printf("error updating honker: %s", err)
1777				return
1778			}
1779			go itakeitallback(user, url)
1780
1781			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1782			return
1783		}
1784		if goodbye == "X" {
1785			var owner string
1786			db := opendatabase()
1787			row := db.QueryRow("select xid, owner from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep', 'presub')",
1788				honkerid, u.UserID)
1789			err := row.Scan(&url, &owner)
1790			if err != nil {
1791				log.Printf("can't get honker xid: %s", err)
1792				return
1793			}
1794			log.Printf("resubscribing to %s", url)
1795			user, _ := butwhatabout(u.Username)
1796			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "unsub")
1797			if err == nil {
1798				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, name, "peep")
1799			}
1800			if err != nil {
1801				log.Printf("error updating honker: %s", err)
1802				return
1803			}
1804			go subsub(user, url, owner)
1805
1806			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1807			return
1808		}
1809		_, err := stmtUpdateHonker.Exec(name, combos, mj, honkerid, u.UserID)
1810		if err != nil {
1811			log.Printf("update honker err: %s", err)
1812			return
1813		}
1814		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1815		return
1816	}
1817
1818	if url == "" {
1819		http.Error(w, "subscribing to nothing?", http.StatusInternalServerError)
1820		return
1821	}
1822
1823	flavor := "presub"
1824	if peep == "peep" {
1825		flavor = "peep"
1826	}
1827
1828	if url[0] == '#' {
1829		flavor = "peep"
1830		if name == "" {
1831			name = url
1832		}
1833		_, err := stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, url, mj)
1834		if err != nil {
1835			log.Print(err)
1836			return
1837		}
1838		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1839		return
1840	}
1841
1842	info, err := investigate(url)
1843	if err != nil {
1844		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1845		log.Printf("failed to investigate honker: %s", err)
1846		return
1847	}
1848	url = info.XID
1849
1850	var x string
1851	db := opendatabase()
1852	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1853	err = row.Scan(&x)
1854	if err != sql.ErrNoRows {
1855		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1856		if err != nil {
1857			log.Printf("honker scan err: %s", err)
1858		}
1859		return
1860	}
1861
1862	if name == "" {
1863		name = info.Name
1864	}
1865	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos, info.Owner, mj)
1866	if err != nil {
1867		log.Print(err)
1868		return
1869	}
1870	if flavor == "presub" {
1871		user, _ := butwhatabout(u.Username)
1872		go subsub(user, url, info.Owner)
1873	}
1874	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1875}
1876
1877func hfcspage(w http.ResponseWriter, r *http.Request) {
1878	userinfo := login.GetUserInfo(r)
1879
1880	filters := getfilters(userinfo.UserID, filtAny)
1881
1882	templinfo := getInfo(r)
1883	templinfo["Filters"] = filters
1884	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1885	err := readviews.Execute(w, "hfcs.html", templinfo)
1886	if err != nil {
1887		log.Print(err)
1888	}
1889}
1890
1891func savehfcs(w http.ResponseWriter, r *http.Request) {
1892	userinfo := login.GetUserInfo(r)
1893	itsok := r.FormValue("itsok")
1894	if itsok == "iforgiveyou" {
1895		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1896		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1897		if err != nil {
1898			log.Printf("error deleting filter: %s", err)
1899		}
1900		filtInvalidator.Clear(userinfo.UserID)
1901		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1902		return
1903	}
1904
1905	filt := new(Filter)
1906	filt.Name = strings.TrimSpace(r.FormValue("name"))
1907	filt.Date = time.Now().UTC()
1908	filt.Actor = strings.TrimSpace(r.FormValue("actor"))
1909	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1910	filt.Text = strings.TrimSpace(r.FormValue("filttext"))
1911	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1912	filt.AnnounceOf = strings.TrimSpace(r.FormValue("announceof"))
1913	filt.Reject = r.FormValue("doreject") == "yes"
1914	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1915	filt.Hide = r.FormValue("dohide") == "yes"
1916	filt.Collapse = r.FormValue("docollapse") == "yes"
1917	filt.Rewrite = strings.TrimSpace(r.FormValue("filtrewrite"))
1918	filt.Replace = strings.TrimSpace(r.FormValue("filtreplace"))
1919	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
1920		filt.Expiration = time.Now().UTC().Add(dur)
1921	}
1922	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
1923
1924	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
1925		log.Printf("blank filter")
1926		http.Error(w, "can't save a blank filter", http.StatusInternalServerError)
1927		return
1928	}
1929
1930	j, err := jsonify(filt)
1931	if err == nil {
1932		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1933	}
1934	if err != nil {
1935		log.Printf("error saving filter: %s", err)
1936	}
1937
1938	filtInvalidator.Clear(userinfo.UserID)
1939	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1940}
1941
1942func accountpage(w http.ResponseWriter, r *http.Request) {
1943	u := login.GetUserInfo(r)
1944	user, _ := butwhatabout(u.Username)
1945	templinfo := getInfo(r)
1946	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1947	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1948	templinfo["User"] = user
1949	about := user.About
1950	if ava := user.Options.Avatar; ava != "" {
1951		about += "\n\navatar: " + ava[strings.LastIndexByte(ava, '/')+1:]
1952	}
1953	templinfo["WhatAbout"] = about
1954	err := readviews.Execute(w, "account.html", templinfo)
1955	if err != nil {
1956		log.Print(err)
1957	}
1958}
1959
1960func dochpass(w http.ResponseWriter, r *http.Request) {
1961	err := login.ChangePassword(w, r)
1962	if err != nil {
1963		log.Printf("error changing password: %s", err)
1964	}
1965	http.Redirect(w, r, "/account", http.StatusSeeOther)
1966}
1967
1968func fingerlicker(w http.ResponseWriter, r *http.Request) {
1969	orig := r.FormValue("resource")
1970
1971	log.Printf("finger lick: %s", orig)
1972
1973	if strings.HasPrefix(orig, "acct:") {
1974		orig = orig[5:]
1975	}
1976
1977	name := orig
1978	idx := strings.LastIndexByte(name, '/')
1979	if idx != -1 {
1980		name = name[idx+1:]
1981		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
1982			log.Printf("foreign request rejected")
1983			name = ""
1984		}
1985	} else {
1986		idx = strings.IndexByte(name, '@')
1987		if idx != -1 {
1988			name = name[:idx]
1989			if name+"@"+serverName != orig {
1990				log.Printf("foreign request rejected")
1991				name = ""
1992			}
1993		}
1994	}
1995	user, err := butwhatabout(name)
1996	if err != nil {
1997		http.NotFound(w, r)
1998		return
1999	}
2000	if stealthmode(user.ID, r) {
2001		http.NotFound(w, r)
2002		return
2003	}
2004
2005	j := junk.New()
2006	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, serverName)
2007	j["aliases"] = []string{user.URL}
2008	l := junk.New()
2009	l["rel"] = "self"
2010	l["type"] = `application/activity+json`
2011	l["href"] = user.URL
2012	j["links"] = []junk.Junk{l}
2013
2014	w.Header().Set("Content-Type", "application/jrd+json")
2015	j.Write(w)
2016}
2017
2018func somedays() string {
2019	secs := 432000 + notrand.Int63n(432000)
2020	return fmt.Sprintf("%d", secs)
2021}
2022
2023func avatate(w http.ResponseWriter, r *http.Request) {
2024	if debugMode {
2025		loadAvatarColors()
2026	}
2027	n := r.FormValue("a")
2028	a := genAvatar(n)
2029	w.Header().Set("Cache-Control", "max-age="+somedays())
2030	w.Write(a)
2031}
2032
2033func serveasset(w http.ResponseWriter, r *http.Request) {
2034	if !debugMode {
2035		w.Header().Set("Cache-Control", "max-age=7776000")
2036	}
2037	dir := viewDir
2038	if r.URL.Path == "/local.css" {
2039		dir = dataDir
2040	}
2041	http.ServeFile(w, r, dir+"/views"+r.URL.Path)
2042}
2043func servehelp(w http.ResponseWriter, r *http.Request) {
2044	name := mux.Vars(r)["name"]
2045	if !debugMode {
2046		w.Header().Set("Cache-Control", "max-age=3600")
2047	}
2048	http.ServeFile(w, r, viewDir+"/docs/"+name)
2049}
2050func servehtml(w http.ResponseWriter, r *http.Request) {
2051	u := login.GetUserInfo(r)
2052	templinfo := getInfo(r)
2053	templinfo["AboutMsg"] = aboutMsg
2054	templinfo["LoginMsg"] = loginMsg
2055	templinfo["HonkVersion"] = softwareVersion
2056	if r.URL.Path == "/about" {
2057		templinfo["Sensors"] = getSensors()
2058	}
2059	if u == nil && !debugMode {
2060		w.Header().Set("Cache-Control", "max-age=60")
2061	}
2062	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
2063	if err != nil {
2064		log.Print(err)
2065	}
2066}
2067func serveemu(w http.ResponseWriter, r *http.Request) {
2068	emu := mux.Vars(r)["emu"]
2069
2070	w.Header().Set("Cache-Control", "max-age="+somedays())
2071	http.ServeFile(w, r, dataDir+"/emus/"+emu)
2072}
2073func servememe(w http.ResponseWriter, r *http.Request) {
2074	meme := mux.Vars(r)["meme"]
2075
2076	w.Header().Set("Cache-Control", "max-age="+somedays())
2077	http.ServeFile(w, r, dataDir+"/memes/"+meme)
2078}
2079
2080func servefile(w http.ResponseWriter, r *http.Request) {
2081	xid := mux.Vars(r)["xid"]
2082	var media string
2083	var data []byte
2084	row := stmtGetFileData.QueryRow(xid)
2085	err := row.Scan(&media, &data)
2086	if err != nil {
2087		log.Printf("error loading file: %s", err)
2088		http.NotFound(w, r)
2089		return
2090	}
2091	w.Header().Set("Content-Type", media)
2092	w.Header().Set("X-Content-Type-Options", "nosniff")
2093	w.Header().Set("Cache-Control", "max-age="+somedays())
2094	w.Write(data)
2095}
2096
2097func nomoroboto(w http.ResponseWriter, r *http.Request) {
2098	io.WriteString(w, "User-agent: *\n")
2099	io.WriteString(w, "Disallow: /a\n")
2100	io.WriteString(w, "Disallow: /d/\n")
2101	io.WriteString(w, "Disallow: /meme/\n")
2102	io.WriteString(w, "Disallow: /o\n")
2103	io.WriteString(w, "Disallow: /o/\n")
2104	for _, u := range allusers() {
2105		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
2106	}
2107}
2108
2109func webhydra(w http.ResponseWriter, r *http.Request) {
2110	u := login.GetUserInfo(r)
2111	userid := u.UserID
2112	templinfo := getInfo(r)
2113	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
2114	page := r.FormValue("page")
2115
2116	wanted, _ := strconv.ParseInt(r.FormValue("tophid"), 10, 0)
2117
2118	var honks []*Honk
2119	switch page {
2120	case "atme":
2121		honks = gethonksforme(userid, wanted)
2122		honks = osmosis(honks, userid, false)
2123		templinfo["ServerMessage"] = "at me!"
2124	case "home":
2125		honks = gethonksforuser(userid, wanted)
2126		honks = osmosis(honks, userid, true)
2127		templinfo["ServerMessage"] = serverMsg
2128	case "first":
2129		honks = gethonksforuserfirstclass(userid, wanted)
2130		honks = osmosis(honks, userid, true)
2131		templinfo["ServerMessage"] = "first class only"
2132	case "saved":
2133		honks = getsavedhonks(userid, wanted)
2134		templinfo["PageName"] = "saved"
2135		templinfo["ServerMessage"] = "saved honks"
2136	case "combo":
2137		c := r.FormValue("c")
2138		honks = gethonksbycombo(userid, c, wanted)
2139		honks = osmosis(honks, userid, false)
2140		templinfo["ServerMessage"] = "honks by combo: " + c
2141	case "convoy":
2142		c := r.FormValue("c")
2143		honks = gethonksbyconvoy(userid, c, wanted)
2144		honks = osmosis(honks, userid, false)
2145		templinfo["ServerMessage"] = "honks in convoy: " + c
2146	case "honker":
2147		xid := r.FormValue("xid")
2148		honks = gethonksbyxonker(userid, xid, wanted)
2149		msg := templates.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
2150		templinfo["ServerMessage"] = msg
2151	default:
2152		http.NotFound(w, r)
2153	}
2154	if len(honks) > 0 {
2155		templinfo["TopHID"] = honks[0].ID
2156	} else {
2157		templinfo["TopHID"] = wanted
2158	}
2159	reverbolate(userid, honks)
2160	templinfo["Honks"] = honks
2161	templinfo["MapLink"] = getmaplink(u)
2162	w.Header().Set("Content-Type", "text/html; charset=utf-8")
2163	err := readviews.Execute(w, "honkfrags.html", templinfo)
2164	if err != nil {
2165		log.Printf("frag error: %s", err)
2166	}
2167}
2168
2169var honkline = make(chan bool)
2170
2171func honkhonkline() {
2172	for {
2173		select {
2174		case honkline <- true:
2175		default:
2176			return
2177		}
2178	}
2179}
2180
2181func apihandler(w http.ResponseWriter, r *http.Request) {
2182	u := login.GetUserInfo(r)
2183	userid := u.UserID
2184	user, _ := butwhatabout(u.Username)
2185	action := r.FormValue("action")
2186	wait, _ := strconv.ParseInt(r.FormValue("wait"), 10, 0)
2187	log.Printf("api request '%s' on behalf of %s", action, u.Username)
2188	switch action {
2189	case "honk":
2190		submithonk(w, r, true)
2191	case "gethonks":
2192		var honks []*Honk
2193		wanted, _ := strconv.ParseInt(r.FormValue("after"), 10, 0)
2194		page := r.FormValue("page")
2195		var waitchan <-chan time.Time
2196	requery:
2197		switch page {
2198		case "atme":
2199			honks = gethonksforme(userid, wanted)
2200			honks = osmosis(honks, userid, false)
2201		case "home":
2202			honks = gethonksforuser(userid, wanted)
2203			honks = osmosis(honks, userid, true)
2204		default:
2205			http.Error(w, "unknown page", http.StatusNotFound)
2206			return
2207		}
2208		if len(honks) == 0 && wait > 0 {
2209			if waitchan == nil {
2210				waitchan = time.After(time.Duration(wait) * time.Second)
2211			}
2212			select {
2213			case <-honkline:
2214				goto requery
2215			case <-waitchan:
2216			}
2217		}
2218		reverbolate(userid, honks)
2219		j := junk.New()
2220		j["honks"] = honks
2221		j.Write(w)
2222	case "sendactivity":
2223		public := r.FormValue("public") == "1"
2224		rcpts := boxuprcpts(user, r.Form["rcpt"], public)
2225		msg := []byte(r.FormValue("msg"))
2226		for rcpt := range rcpts {
2227			go deliverate(0, userid, rcpt, msg)
2228		}
2229	default:
2230		http.Error(w, "unknown action", http.StatusNotFound)
2231		return
2232	}
2233}
2234
2235var endoftheworld = make(chan bool)
2236var readyalready = make(chan bool)
2237
2238func enditall() {
2239	sig := make(chan os.Signal)
2240	signal.Notify(sig, os.Interrupt)
2241	signal.Notify(sig, syscall.SIGTERM)
2242	<-sig
2243	count := 0
2244	log.Printf("stopping...")
2245sendloop:
2246	for {
2247		select {
2248		case endoftheworld <- true:
2249			count++
2250		default:
2251			break sendloop
2252		}
2253	}
2254	log.Printf("waiting...")
2255	for i := 0; i < count; i++ {
2256		<-readyalready
2257	}
2258	log.Printf("apocalypse")
2259	os.Exit(0)
2260}
2261
2262var preservehooks []func()
2263
2264func serve() {
2265	db := opendatabase()
2266	login.Init(db)
2267
2268	listener, err := openListener()
2269	if err != nil {
2270		log.Fatal(err)
2271	}
2272	startBackendServer()
2273	go enditall()
2274	go redeliverator()
2275	go tracker()
2276
2277	getconfig("debug", &debugMode)
2278	readviews = templates.Load(debugMode,
2279		viewDir+"/views/honkpage.html",
2280		viewDir+"/views/honkfrags.html",
2281		viewDir+"/views/honkers.html",
2282		viewDir+"/views/hfcs.html",
2283		viewDir+"/views/combos.html",
2284		viewDir+"/views/honkform.html",
2285		viewDir+"/views/honk.html",
2286		viewDir+"/views/account.html",
2287		viewDir+"/views/about.html",
2288		viewDir+"/views/funzone.html",
2289		viewDir+"/views/login.html",
2290		viewDir+"/views/xzone.html",
2291		viewDir+"/views/msg.html",
2292		viewDir+"/views/header.html",
2293		viewDir+"/views/onts.html",
2294		viewDir+"/views/honkpage.js",
2295	)
2296	if !debugMode {
2297		assets := []string{viewDir + "/views/style.css", dataDir + "/views/local.css", viewDir + "/views/honkpage.js"}
2298		for _, s := range assets {
2299			savedassetparams[s] = getassetparam(s)
2300		}
2301		loadAvatarColors()
2302	}
2303
2304	for _, h := range preservehooks {
2305		h()
2306	}
2307
2308	mux := mux.NewRouter()
2309	mux.Use(login.Checker)
2310
2311	mux.Handle("/api", login.TokenRequired(http.HandlerFunc(apihandler)))
2312
2313	posters := mux.Methods("POST").Subrouter()
2314	getters := mux.Methods("GET").Subrouter()
2315
2316	getters.HandleFunc("/", homepage)
2317	getters.HandleFunc("/home", homepage)
2318	getters.HandleFunc("/front", homepage)
2319	getters.HandleFunc("/events", homepage)
2320	getters.HandleFunc("/robots.txt", nomoroboto)
2321	getters.HandleFunc("/rss", showrss)
2322	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
2323	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showonehonk)
2324	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
2325	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
2326	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
2327	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
2328	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
2329	getters.HandleFunc("/a", avatate)
2330	getters.HandleFunc("/o", thelistingoftheontologies)
2331	getters.HandleFunc("/o/{name:.+}", showontology)
2332	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
2333	getters.HandleFunc("/emu/{emu:[^.]*[^/]+}", serveemu)
2334	getters.HandleFunc("/meme/{meme:[^.]*[^/]+}", servememe)
2335	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
2336
2337	getters.HandleFunc("/server", serveractor)
2338	posters.HandleFunc("/server/inbox", serverinbox)
2339
2340	getters.HandleFunc("/style.css", serveasset)
2341	getters.HandleFunc("/local.css", serveasset)
2342	getters.HandleFunc("/honkpage.js", serveasset)
2343	getters.HandleFunc("/about", servehtml)
2344	getters.HandleFunc("/login", servehtml)
2345	posters.HandleFunc("/dologin", login.LoginFunc)
2346	getters.HandleFunc("/logout", login.LogoutFunc)
2347	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
2348
2349	loggedin := mux.NewRoute().Subrouter()
2350	loggedin.Use(login.Required)
2351	loggedin.HandleFunc("/first", homepage)
2352	loggedin.HandleFunc("/saved", homepage)
2353	loggedin.HandleFunc("/account", accountpage)
2354	loggedin.HandleFunc("/funzone", showfunzone)
2355	loggedin.HandleFunc("/chpass", dochpass)
2356	loggedin.HandleFunc("/atme", homepage)
2357	loggedin.HandleFunc("/hfcs", hfcspage)
2358	loggedin.HandleFunc("/xzone", xzone)
2359	loggedin.HandleFunc("/newhonk", newhonkpage)
2360	loggedin.HandleFunc("/edit", edithonkpage)
2361	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitwebhonk)))
2362	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
2363	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
2364	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
2365	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
2366	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
2367	loggedin.HandleFunc("/honkers", showhonkers)
2368	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
2369	loggedin.HandleFunc("/h", showhonker)
2370	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
2371	loggedin.HandleFunc("/c", showcombos)
2372	loggedin.HandleFunc("/t", showconvoy)
2373	loggedin.HandleFunc("/q", showsearch)
2374	loggedin.HandleFunc("/hydra", webhydra)
2375	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
2376
2377	err = http.Serve(listener, mux)
2378	if err != nil {
2379		log.Fatal(err)
2380	}
2381}