all repos — honk @ 3f3e8548b0001810cb640426b7b8aa800a8c142c

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