all repos — honk @ 5f581e0167c9b9f9d661c0fdf529a88e1ed551e0

my fork of honk

web.go (view raw)

   1//
   2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
   3//
   4// Permission to use, copy, modify, and distribute this software for any
   5// purpose with or without fee is hereby granted, provided that the above
   6// copyright notice and this permission notice appear in all copies.
   7//
   8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15
  16package main
  17
  18import (
  19	"bytes"
  20	"database/sql"
  21	"fmt"
  22	"html"
  23	"html/template"
  24	"io"
  25	"log"
  26	notrand "math/rand"
  27	"net/http"
  28	"net/url"
  29	"os"
  30	"sort"
  31	"strconv"
  32	"strings"
  33	"time"
  34
  35	"github.com/gorilla/mux"
  36	"humungus.tedunangst.com/r/webs/css"
  37	"humungus.tedunangst.com/r/webs/htfilter"
  38	"humungus.tedunangst.com/r/webs/httpsig"
  39	"humungus.tedunangst.com/r/webs/image"
  40	"humungus.tedunangst.com/r/webs/junk"
  41	"humungus.tedunangst.com/r/webs/login"
  42	"humungus.tedunangst.com/r/webs/rss"
  43	"humungus.tedunangst.com/r/webs/templates"
  44)
  45
  46var readviews *templates.Template
  47
  48var userSep = "u"
  49var honkSep = "h"
  50
  51func getuserstyle(u *login.UserInfo) template.CSS {
  52	if u == nil {
  53		return ""
  54	}
  55	user, _ := butwhatabout(u.Username)
  56	if user.SkinnyCSS {
  57		return "main { max-width: 700px; }"
  58	}
  59	return ""
  60}
  61
  62func getInfo(r *http.Request) map[string]interface{} {
  63	u := login.GetUserInfo(r)
  64	templinfo := make(map[string]interface{})
  65	templinfo["StyleParam"] = getassetparam("views/style.css")
  66	templinfo["LocalStyleParam"] = getassetparam("views/local.css")
  67	templinfo["JSParam"] = getassetparam("views/honkpage.js")
  68	templinfo["UserStyle"] = getuserstyle(u)
  69	templinfo["ServerName"] = serverName
  70	templinfo["IconName"] = iconName
  71	templinfo["UserInfo"] = u
  72	templinfo["UserSep"] = userSep
  73	if u != nil {
  74		var combos []string
  75		combocache.Get(u.UserID, &combos)
  76		templinfo["Combos"] = combos
  77	}
  78	return templinfo
  79}
  80
  81func homepage(w http.ResponseWriter, r *http.Request) {
  82	templinfo := getInfo(r)
  83	u := login.GetUserInfo(r)
  84	var honks []*Honk
  85	var userid int64 = -1
  86	if r.URL.Path == "/front" || u == nil {
  87		honks = getpublichonks()
  88	} else {
  89		userid = u.UserID
  90		if r.URL.Path == "/atme" {
  91			templinfo["PageName"] = "atme"
  92			honks = gethonksforme(userid)
  93		} else if r.URL.Path == "/first" {
  94			templinfo["PageName"] = "first"
  95			honks = gethonksforuser(userid)
  96			honks = osmosis(honks, userid)
  97		} else {
  98			templinfo["PageName"] = "home"
  99			honks = gethonksforuser(userid)
 100			honks = osmosis(honks, userid)
 101		}
 102		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 103	}
 104
 105	templinfo["ShowRSS"] = true
 106	templinfo["ServerMessage"] = serverMsg
 107	honkpage(w, u, honks, templinfo)
 108}
 109
 110func showfunzone(w http.ResponseWriter, r *http.Request) {
 111	var emunames, memenames []string
 112	dir, err := os.Open("emus")
 113	if err == nil {
 114		emunames, _ = dir.Readdirnames(0)
 115		dir.Close()
 116	}
 117	for i, e := range emunames {
 118		if len(e) > 4 {
 119			emunames[i] = e[:len(e)-4]
 120		}
 121	}
 122	dir, err = os.Open("memes")
 123	if err == nil {
 124		memenames, _ = dir.Readdirnames(0)
 125		dir.Close()
 126	}
 127	templinfo := getInfo(r)
 128	templinfo["Emus"] = emunames
 129	templinfo["Memes"] = memenames
 130	err = readviews.Execute(w, "funzone.html", templinfo)
 131	if err != nil {
 132		log.Print(err)
 133	}
 134}
 135
 136func showrss(w http.ResponseWriter, r *http.Request) {
 137	name := mux.Vars(r)["name"]
 138
 139	var honks []*Honk
 140	if name != "" {
 141		honks = gethonksbyuser(name, false)
 142	} else {
 143		honks = getpublichonks()
 144	}
 145	if len(honks) > 20 {
 146		honks = honks[0:20]
 147	}
 148	reverbolate(-1, honks)
 149
 150	home := fmt.Sprintf("https://%s/", serverName)
 151	base := home
 152	if name != "" {
 153		home += "u/" + name
 154		name += " "
 155	}
 156	feed := rss.Feed{
 157		Title:       name + "honk",
 158		Link:        home,
 159		Description: name + "honk rss",
 160		Image: &rss.Image{
 161			URL:   base + "icon.png",
 162			Title: name + "honk rss",
 163			Link:  home,
 164		},
 165	}
 166	var modtime time.Time
 167	for _, honk := range honks {
 168		if !firstclass(honk) {
 169			continue
 170		}
 171		desc := string(honk.HTML)
 172		if t := honk.Time; t != nil {
 173			desc += fmt.Sprintf(`<p>Time: %s`, t.StartTime.Local().Format("03:04PM EDT Mon Jan 02"))
 174			if t.Duration != 0 {
 175				desc += fmt.Sprintf(`<br>Duration: %s`, t.Duration)
 176			}
 177		}
 178		if p := honk.Place; p != nil {
 179			desc += fmt.Sprintf(`<p>Location: <a href="%s">%s</a> %f %f`,
 180				html.EscapeString(p.Url), html.EscapeString(p.Name), p.Latitude, p.Longitude)
 181		}
 182		for _, d := range honk.Donks {
 183			desc += fmt.Sprintf(`<p><a href="%s">Attachment: %s</a>`,
 184				d.URL, html.EscapeString(d.Name))
 185		}
 186
 187		feed.Items = append(feed.Items, &rss.Item{
 188			Title:       fmt.Sprintf("%s %s %s", honk.Username, honk.What, honk.XID),
 189			Description: rss.CData{Data: desc},
 190			Link:        honk.URL,
 191			PubDate:     honk.Date.Format(time.RFC1123),
 192			Guid:        &rss.Guid{IsPermaLink: true, Value: honk.URL},
 193		})
 194		if honk.Date.After(modtime) {
 195			modtime = honk.Date
 196		}
 197	}
 198	w.Header().Set("Cache-Control", "max-age=300")
 199	w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
 200
 201	err := feed.Write(w)
 202	if err != nil {
 203		log.Printf("error writing rss: %s", err)
 204	}
 205}
 206
 207func crappola(j junk.Junk) bool {
 208	t, _ := j.GetString("type")
 209	a, _ := j.GetString("actor")
 210	o, _ := j.GetString("object")
 211	if t == "Delete" && a == o {
 212		log.Printf("crappola from %s", a)
 213		return true
 214	}
 215	return false
 216}
 217
 218func ping(user *WhatAbout, who string) {
 219	var box *Box
 220	ok := boxofboxes.Get(who, &box)
 221	if !ok {
 222		log.Printf("no inbox to ping %s", who)
 223		return
 224	}
 225	j := junk.New()
 226	j["@context"] = itiswhatitis
 227	j["type"] = "Ping"
 228	j["id"] = user.URL + "/ping/" + xfiltrate()
 229	j["actor"] = user.URL
 230	j["to"] = who
 231	keyname, key := ziggy(user.Name)
 232	err := PostJunk(keyname, key, box.In, j)
 233	if err != nil {
 234		log.Printf("can't send ping: %s", err)
 235		return
 236	}
 237	log.Printf("sent ping to %s: %s", who, j["id"])
 238}
 239
 240func pong(user *WhatAbout, who string, obj string) {
 241	var box *Box
 242	ok := boxofboxes.Get(who, &box)
 243	if !ok {
 244		log.Printf("no inbox to pong %s", who)
 245		return
 246	}
 247	j := junk.New()
 248	j["@context"] = itiswhatitis
 249	j["type"] = "Pong"
 250	j["id"] = user.URL + "/pong/" + xfiltrate()
 251	j["actor"] = user.URL
 252	j["to"] = who
 253	j["object"] = obj
 254	keyname, key := ziggy(user.Name)
 255	err := PostJunk(keyname, key, box.In, j)
 256	if err != nil {
 257		log.Printf("can't send pong: %s", err)
 258		return
 259	}
 260}
 261
 262func inbox(w http.ResponseWriter, r *http.Request) {
 263	name := mux.Vars(r)["name"]
 264	user, err := butwhatabout(name)
 265	if err != nil {
 266		http.NotFound(w, r)
 267		return
 268	}
 269	if stealthmode(user.ID, r) {
 270		http.NotFound(w, r)
 271		return
 272	}
 273	var buf bytes.Buffer
 274	io.Copy(&buf, r.Body)
 275	payload := buf.Bytes()
 276	j, err := junk.Read(bytes.NewReader(payload))
 277	if err != nil {
 278		log.Printf("bad payload: %s", err)
 279		io.WriteString(os.Stdout, "bad payload\n")
 280		os.Stdout.Write(payload)
 281		io.WriteString(os.Stdout, "\n")
 282		return
 283	}
 284	if crappola(j) {
 285		return
 286	}
 287	keyname, err := httpsig.VerifyRequest(r, payload, zaggy)
 288	if err != nil {
 289		log.Printf("inbox message failed signature: %s", err)
 290		if keyname != "" {
 291			keyname, err = makeitworksomehowwithoutregardforkeycontinuity(keyname, r, payload)
 292			if err != nil {
 293				log.Printf("still failed: %s", err)
 294			}
 295		}
 296		if err != nil {
 297			return
 298		}
 299	}
 300	what, _ := j.GetString("type")
 301	if what == "Like" {
 302		return
 303	}
 304	who, _ := j.GetString("actor")
 305	origin := keymatch(keyname, who)
 306	if origin == "" {
 307		log.Printf("keyname actor mismatch: %s <> %s", keyname, who)
 308		return
 309	}
 310	if rejectactor(user.ID, who) {
 311		return
 312	}
 313	switch what {
 314	case "Ping":
 315		obj, _ := j.GetString("id")
 316		log.Printf("ping from %s: %s", who, obj)
 317		pong(user, who, obj)
 318	case "Pong":
 319		obj, _ := j.GetString("object")
 320		log.Printf("pong from %s: %s", who, obj)
 321	case "Follow":
 322		obj, _ := j.GetString("object")
 323		if obj == user.URL {
 324			log.Printf("updating honker follow: %s", who)
 325
 326			db := opendatabase()
 327			row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('dub', 'undub')", who, user.ID)
 328			var x string
 329			err = row.Scan(&x)
 330			if err != sql.ErrNoRows {
 331				log.Printf("duplicate follow request: %s", who)
 332				_, err = stmtUpdateFlavor.Exec("dub", user.ID, who, "undub")
 333				if err != nil {
 334					log.Printf("error updating honker: %s", err)
 335				}
 336			} else {
 337				stmtSaveDub.Exec(user.ID, who, who, "dub")
 338			}
 339			go rubadubdub(user, j)
 340		} else {
 341			log.Printf("can't follow %s", obj)
 342		}
 343	case "Accept":
 344		log.Printf("updating honker accept: %s", who)
 345		_, err = stmtUpdateFlavor.Exec("sub", user.ID, who, "presub")
 346		if err != nil {
 347			log.Printf("error updating honker: %s", err)
 348			return
 349		}
 350	case "Update":
 351		obj, ok := j.GetMap("object")
 352		if ok {
 353			what, _ := obj.GetString("type")
 354			switch what {
 355			case "Person":
 356				return
 357			case "Question":
 358				return
 359			case "Note":
 360				go xonksaver(user, j, origin)
 361				return
 362			}
 363		}
 364		log.Printf("unknown Update activity")
 365		fd, _ := os.OpenFile("savedinbox.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 366		j.Write(fd)
 367		io.WriteString(fd, "\n")
 368		fd.Close()
 369
 370	case "Undo":
 371		obj, ok := j.GetMap("object")
 372		if !ok {
 373			log.Printf("unknown undo no object")
 374		} else {
 375			what, _ := obj.GetString("type")
 376			switch what {
 377			case "Follow":
 378				log.Printf("updating honker undo: %s", who)
 379				_, err = stmtUpdateFlavor.Exec("undub", user.ID, who, "dub")
 380				if err != nil {
 381					log.Printf("error updating honker: %s", err)
 382					return
 383				}
 384			case "Announce":
 385				xid, _ := obj.GetString("object")
 386				log.Printf("undo announce: %s", xid)
 387			case "Like":
 388			default:
 389				log.Printf("unknown undo: %s", what)
 390			}
 391		}
 392	default:
 393		go xonksaver(user, j, origin)
 394	}
 395}
 396
 397func ximport(w http.ResponseWriter, r *http.Request) {
 398	u := login.GetUserInfo(r)
 399	xid := r.FormValue("xid")
 400	xonk := getxonk(u.UserID, xid)
 401	if xonk == nil {
 402		p, _ := investigate(xid)
 403		if p != nil {
 404			xid = p.XID
 405		}
 406		j, err := GetJunk(xid)
 407		if err != nil {
 408			http.Error(w, "error getting external object", http.StatusInternalServerError)
 409			log.Printf("error getting external object: %s", err)
 410			return
 411		}
 412		log.Printf("importing %s", xid)
 413		user, _ := butwhatabout(u.Username)
 414
 415		what, _ := j.GetString("type")
 416		if isactor(what) {
 417			outbox, _ := j.GetString("outbox")
 418			gimmexonks(user, outbox)
 419			http.Redirect(w, r, "/h?xid="+url.QueryEscape(xid), http.StatusSeeOther)
 420			return
 421		}
 422		xonk = xonksaver(user, j, originate(xid))
 423	}
 424	convoy := ""
 425	if xonk != nil {
 426		convoy = xonk.Convoy
 427	}
 428	http.Redirect(w, r, "/t?c="+url.QueryEscape(convoy), http.StatusSeeOther)
 429}
 430
 431func xzone(w http.ResponseWriter, r *http.Request) {
 432	u := login.GetUserInfo(r)
 433	rows, err := stmtRecentHonkers.Query(u.UserID, u.UserID)
 434	if err != nil {
 435		log.Printf("query err: %s", err)
 436		return
 437	}
 438	defer rows.Close()
 439	var honkers []Honker
 440	for rows.Next() {
 441		var xid string
 442		rows.Scan(&xid)
 443		honkers = append(honkers, Honker{XID: xid})
 444	}
 445	rows.Close()
 446	for i, _ := range honkers {
 447		_, honkers[i].Handle = handles(honkers[i].XID)
 448	}
 449	templinfo := getInfo(r)
 450	templinfo["XCSRF"] = login.GetCSRF("ximport", r)
 451	templinfo["Honkers"] = honkers
 452	err = readviews.Execute(w, "xzone.html", templinfo)
 453	if err != nil {
 454		log.Print(err)
 455	}
 456}
 457
 458func outbox(w http.ResponseWriter, r *http.Request) {
 459	name := mux.Vars(r)["name"]
 460	user, err := butwhatabout(name)
 461	if err != nil {
 462		http.NotFound(w, r)
 463		return
 464	}
 465	if stealthmode(user.ID, r) {
 466		http.NotFound(w, r)
 467		return
 468	}
 469
 470	honks := gethonksbyuser(name, false)
 471	if len(honks) > 20 {
 472		honks = honks[0:20]
 473	}
 474
 475	var jonks []junk.Junk
 476	for _, h := range honks {
 477		j, _ := jonkjonk(user, h)
 478		jonks = append(jonks, j)
 479	}
 480
 481	j := junk.New()
 482	j["@context"] = itiswhatitis
 483	j["id"] = user.URL + "/outbox"
 484	j["type"] = "OrderedCollection"
 485	j["totalItems"] = len(jonks)
 486	j["orderedItems"] = jonks
 487
 488	w.Header().Set("Content-Type", theonetruename)
 489	j.Write(w)
 490}
 491
 492func emptiness(w http.ResponseWriter, r *http.Request) {
 493	name := mux.Vars(r)["name"]
 494	user, err := butwhatabout(name)
 495	if err != nil {
 496		http.NotFound(w, r)
 497		return
 498	}
 499	if stealthmode(user.ID, r) {
 500		http.NotFound(w, r)
 501		return
 502	}
 503	colname := "/followers"
 504	if strings.HasSuffix(r.URL.Path, "/following") {
 505		colname = "/following"
 506	}
 507	j := junk.New()
 508	j["@context"] = itiswhatitis
 509	j["id"] = user.URL + colname
 510	j["type"] = "OrderedCollection"
 511	j["totalItems"] = 0
 512	j["orderedItems"] = []junk.Junk{}
 513
 514	w.Header().Set("Content-Type", theonetruename)
 515	j.Write(w)
 516}
 517
 518func showuser(w http.ResponseWriter, r *http.Request) {
 519	name := mux.Vars(r)["name"]
 520	user, err := butwhatabout(name)
 521	if err != nil {
 522		log.Printf("user not found %s: %s", name, err)
 523		http.NotFound(w, r)
 524		return
 525	}
 526	if stealthmode(user.ID, r) {
 527		http.NotFound(w, r)
 528		return
 529	}
 530	if friendorfoe(r.Header.Get("Accept")) {
 531		j, ok := asjonker(name)
 532		if ok {
 533			w.Header().Set("Content-Type", theonetruename)
 534			w.Write(j)
 535		} else {
 536			http.NotFound(w, r)
 537		}
 538		return
 539	}
 540	u := login.GetUserInfo(r)
 541	honks := gethonksbyuser(name, u != nil && u.Username == name)
 542	templinfo := getInfo(r)
 543	filt := htfilter.New()
 544	templinfo["Name"] = user.Name
 545	whatabout := user.About
 546	whatabout = markitzero(user.About)
 547	templinfo["WhatAbout"], _ = filt.String(whatabout)
 548	templinfo["ServerMessage"] = ""
 549	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 550	honkpage(w, u, honks, templinfo)
 551}
 552
 553func showhonker(w http.ResponseWriter, r *http.Request) {
 554	u := login.GetUserInfo(r)
 555	name := mux.Vars(r)["name"]
 556	var honks []*Honk
 557	if name == "" {
 558		name = r.FormValue("xid")
 559		honks = gethonksbyxonker(u.UserID, name)
 560	} else {
 561		honks = gethonksbyhonker(u.UserID, name)
 562	}
 563	name = html.EscapeString(name)
 564	msg := fmt.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, name, name)
 565	templinfo := getInfo(r)
 566	templinfo["PageName"] = "honker"
 567	templinfo["ServerMessage"] = template.HTML(msg)
 568	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 569	honkpage(w, u, honks, templinfo)
 570}
 571
 572func showcombo(w http.ResponseWriter, r *http.Request) {
 573	name := mux.Vars(r)["name"]
 574	u := login.GetUserInfo(r)
 575	honks := gethonksbycombo(u.UserID, name)
 576	honks = osmosis(honks, u.UserID)
 577	templinfo := getInfo(r)
 578	templinfo["PageName"] = "combo"
 579	templinfo["PageArg"] = "name"
 580	templinfo["ServerMessage"] = "honks by combo: " + name
 581	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 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	xid := fmt.Sprintf("https://%s%s", serverName, r.URL.Path)
 661
 662	if friendorfoe(r.Header.Get("Accept")) {
 663		j, ok := gimmejonk(xid)
 664		if ok {
 665			w.Header().Set("Content-Type", theonetruename)
 666			w.Write(j)
 667		} else {
 668			http.NotFound(w, r)
 669		}
 670		return
 671	}
 672	honk := getxonk(user.ID, xid)
 673	if honk == nil {
 674		http.NotFound(w, r)
 675		return
 676	}
 677	u := login.GetUserInfo(r)
 678	if u != nil && u.UserID != user.ID {
 679		u = nil
 680	}
 681	if !honk.Public {
 682		if u == nil {
 683			http.NotFound(w, r)
 684			return
 685
 686		}
 687		templinfo := getInfo(r)
 688		templinfo["ServerMessage"] = "one honk maybe more"
 689		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 690		honkpage(w, u, []*Honk{honk}, templinfo)
 691		return
 692	}
 693	rawhonks := gethonksbyconvoy(honk.UserID, honk.Convoy)
 694	var honks []*Honk
 695	for _, h := range rawhonks {
 696		if h.Public && (h.Whofore == 2 || h.IsAcked()) {
 697			honks = append(honks, h)
 698		}
 699	}
 700
 701	templinfo := getInfo(r)
 702	templinfo["ServerMessage"] = "one honk maybe more"
 703	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 704	honkpage(w, u, honks, templinfo)
 705}
 706
 707func honkpage(w http.ResponseWriter, u *login.UserInfo, honks []*Honk, templinfo map[string]interface{}) {
 708	var userid int64 = -1
 709	if u != nil {
 710		userid = u.UserID
 711	}
 712	if u == nil {
 713		w.Header().Set("Cache-Control", "max-age=60")
 714	}
 715	reverbolate(userid, honks)
 716	templinfo["Honks"] = honks
 717	if len(honks) > 0 {
 718		templinfo["TopXID"] = honks[0].XID
 719	}
 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	someusers.Clear(u.Username)
 739
 740	http.Redirect(w, r, "/account", http.StatusSeeOther)
 741}
 742
 743func submitbonk(w http.ResponseWriter, r *http.Request) {
 744	xid := r.FormValue("xid")
 745	userinfo := login.GetUserInfo(r)
 746	user, _ := butwhatabout(userinfo.Username)
 747
 748	log.Printf("bonking %s", xid)
 749
 750	xonk := getxonk(userinfo.UserID, xid)
 751	if xonk == nil {
 752		return
 753	}
 754	if !xonk.Public {
 755		return
 756	}
 757	donksforhonks([]*Honk{xonk})
 758
 759	_, err := stmtUpdateFlags.Exec(flagIsBonked, xonk.ID)
 760	if err != nil {
 761		log.Printf("error acking bonk: %s", err)
 762	}
 763
 764	oonker := xonk.Oonker
 765	if oonker == "" {
 766		oonker = xonk.Honker
 767	}
 768	dt := time.Now().UTC()
 769	bonk := Honk{
 770		UserID:   userinfo.UserID,
 771		Username: userinfo.Username,
 772		What:     "bonk",
 773		Honker:   user.URL,
 774		Oonker:   oonker,
 775		XID:      xonk.XID,
 776		RID:      xonk.RID,
 777		Noise:    xonk.Noise,
 778		Precis:   xonk.Precis,
 779		URL:      xonk.URL,
 780		Date:     dt,
 781		Donks:    xonk.Donks,
 782		Whofore:  2,
 783		Convoy:   xonk.Convoy,
 784		Audience: []string{thewholeworld, oonker},
 785		Public:   true,
 786	}
 787
 788	bonk.Format = "html"
 789
 790	err = savehonk(&bonk)
 791	if err != nil {
 792		log.Printf("uh oh")
 793		return
 794	}
 795
 796	go honkworldwide(user, &bonk)
 797}
 798
 799func sendzonkofsorts(xonk *Honk, user *WhatAbout, what string) {
 800	zonk := Honk{
 801		What:     what,
 802		XID:      xonk.XID,
 803		Date:     time.Now().UTC(),
 804		Audience: oneofakind(xonk.Audience),
 805	}
 806	zonk.Public = !keepitquiet(zonk.Audience)
 807
 808	log.Printf("announcing %sed honk: %s", what, xonk.XID)
 809	go honkworldwide(user, &zonk)
 810}
 811
 812func zonkit(w http.ResponseWriter, r *http.Request) {
 813	wherefore := r.FormValue("wherefore")
 814	what := r.FormValue("what")
 815	userinfo := login.GetUserInfo(r)
 816	user, _ := butwhatabout(userinfo.Username)
 817
 818	// my hammer is too big, oh well
 819	defer oldjonks.Flush()
 820
 821	if wherefore == "ack" {
 822		xonk := getxonk(userinfo.UserID, what)
 823		if xonk != nil {
 824			_, err := stmtUpdateFlags.Exec(flagIsAcked, xonk.ID)
 825			if err != nil {
 826				log.Printf("error acking: %s", err)
 827			}
 828			sendzonkofsorts(xonk, user, "ack")
 829		}
 830		return
 831	}
 832
 833	if wherefore == "deack" {
 834		xonk := getxonk(userinfo.UserID, what)
 835		if xonk != nil {
 836			_, err := stmtClearFlags.Exec(flagIsAcked, xonk.ID)
 837			if err != nil {
 838				log.Printf("error deacking: %s", err)
 839			}
 840			sendzonkofsorts(xonk, user, "deack")
 841		}
 842		return
 843	}
 844
 845	if wherefore == "unbonk" {
 846		xonk := getbonk(userinfo.UserID, what)
 847		if xonk != nil {
 848			deletehonk(xonk.ID)
 849			xonk = getxonk(userinfo.UserID, what)
 850			_, err := stmtClearFlags.Exec(flagIsBonked, xonk.ID)
 851			if err != nil {
 852				log.Printf("error unbonking: %s", err)
 853			}
 854			sendzonkofsorts(xonk, user, "unbonk")
 855		}
 856		return
 857	}
 858
 859	log.Printf("zonking %s %s", wherefore, what)
 860	if wherefore == "zonk" {
 861		xonk := getxonk(userinfo.UserID, what)
 862		if xonk != nil {
 863			deletehonk(xonk.ID)
 864			if xonk.Whofore == 2 || xonk.Whofore == 3 {
 865				sendzonkofsorts(xonk, user, "zonk")
 866			}
 867		}
 868	}
 869	_, err := stmtSaveZonker.Exec(userinfo.UserID, what, wherefore)
 870	if err != nil {
 871		log.Printf("error saving zonker: %s", err)
 872		return
 873	}
 874}
 875
 876func edithonkpage(w http.ResponseWriter, r *http.Request) {
 877	u := login.GetUserInfo(r)
 878	user, _ := butwhatabout(u.Username)
 879	xid := r.FormValue("xid")
 880	honk := getxonk(u.UserID, xid)
 881	if honk == nil || honk.Honker != user.URL || honk.What != "honk" {
 882		log.Printf("no edit")
 883		return
 884	}
 885
 886	noise := honk.Noise
 887	if honk.Precis != "" {
 888		noise = honk.Precis + "\n\n" + noise
 889	}
 890
 891	honks := []*Honk{honk}
 892	donksforhonks(honks)
 893	reverbolate(u.UserID, honks)
 894	templinfo := getInfo(r)
 895	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
 896	templinfo["Honks"] = honks
 897	templinfo["Noise"] = noise
 898	templinfo["ServerMessage"] = "honk edit"
 899	templinfo["UpdateXID"] = honk.XID
 900	if len(honk.Donks) > 0 {
 901		templinfo["SavedFile"] = honk.Donks[0].XID
 902	}
 903	err := readviews.Execute(w, "honkpage.html", templinfo)
 904	if err != nil {
 905		log.Print(err)
 906	}
 907}
 908
 909// what a hot mess this function is
 910func submithonk(w http.ResponseWriter, r *http.Request) {
 911	rid := r.FormValue("rid")
 912	noise := r.FormValue("noise")
 913
 914	userinfo := login.GetUserInfo(r)
 915	user, _ := butwhatabout(userinfo.Username)
 916
 917	dt := time.Now().UTC()
 918	updatexid := r.FormValue("updatexid")
 919	var honk *Honk
 920	if updatexid != "" {
 921		honk = getxonk(userinfo.UserID, updatexid)
 922		if honk == nil || honk.Honker != user.URL || honk.What != "honk" {
 923			log.Printf("not saving edit")
 924			return
 925		}
 926		honk.Date = dt
 927		honk.What = "update"
 928		honk.Format = "markdown"
 929	} else {
 930		xid := fmt.Sprintf("%s/%s/%s", user.URL, honkSep, xfiltrate())
 931		what := "honk"
 932		if rid != "" {
 933			what = "tonk"
 934		}
 935		honk = &Honk{
 936			UserID:   userinfo.UserID,
 937			Username: userinfo.Username,
 938			What:     what,
 939			Honker:   user.URL,
 940			XID:      xid,
 941			Date:     dt,
 942			Format:   "markdown",
 943		}
 944	}
 945
 946	noise = hooterize(noise)
 947	honk.Noise = noise
 948	translate(honk)
 949
 950	var convoy string
 951	if rid != "" {
 952		xonk := getxonk(userinfo.UserID, rid)
 953		if xonk != nil {
 954			if xonk.Public {
 955				honk.Audience = append(honk.Audience, xonk.Audience...)
 956			}
 957			convoy = xonk.Convoy
 958		} else {
 959			xonkaud, c := whosthere(rid)
 960			honk.Audience = append(honk.Audience, xonkaud...)
 961			convoy = c
 962		}
 963		for i, a := range honk.Audience {
 964			if a == thewholeworld {
 965				honk.Audience[0], honk.Audience[i] = honk.Audience[i], honk.Audience[0]
 966				break
 967			}
 968		}
 969		honk.RID = rid
 970	} else {
 971		honk.Audience = []string{thewholeworld}
 972	}
 973	if honk.Noise != "" && honk.Noise[0] == '@' {
 974		honk.Audience = append(grapevine(honk.Noise), honk.Audience...)
 975	} else {
 976		honk.Audience = append(honk.Audience, grapevine(honk.Noise)...)
 977	}
 978
 979	if convoy == "" {
 980		convoy = "data:,electrichonkytonk-" + xfiltrate()
 981	}
 982	butnottooloud(honk.Audience)
 983	honk.Audience = oneofakind(honk.Audience)
 984	if len(honk.Audience) == 0 {
 985		log.Printf("honk to nowhere")
 986		http.Error(w, "honk to nowhere...", http.StatusNotFound)
 987		return
 988	}
 989	honk.Public = !keepitquiet(honk.Audience)
 990	honk.Convoy = convoy
 991
 992	donkxid := r.FormValue("donkxid")
 993	if donkxid == "" {
 994		file, filehdr, err := r.FormFile("donk")
 995		if err == nil {
 996			var buf bytes.Buffer
 997			io.Copy(&buf, file)
 998			file.Close()
 999			data := buf.Bytes()
1000			xid := xfiltrate()
1001			var media, name string
1002			img, err := image.Vacuum(&buf, image.Params{MaxWidth: 2048, MaxHeight: 2048})
1003			if err == nil {
1004				data = img.Data
1005				format := img.Format
1006				media = "image/" + format
1007				if format == "jpeg" {
1008					format = "jpg"
1009				}
1010				name = xid + "." + format
1011				xid = name
1012			} else {
1013				maxsize := 100000
1014				if len(data) > maxsize {
1015					log.Printf("bad image: %s too much text: %d", err, len(data))
1016					http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1017					return
1018				}
1019				for i := 0; i < len(data); i++ {
1020					if data[i] < 32 && data[i] != '\t' && data[i] != '\r' && data[i] != '\n' {
1021						log.Printf("bad image: %s not text: %d", err, data[i])
1022						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
1023						return
1024					}
1025				}
1026				media = "text/plain"
1027				name = filehdr.Filename
1028				if name == "" {
1029					name = xid + ".txt"
1030				}
1031				xid += ".txt"
1032			}
1033			desc := r.FormValue("donkdesc")
1034			if desc == "" {
1035				desc = name
1036			}
1037			url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1038			fileid, err := savefile(xid, name, desc, url, media, true, data)
1039			if err != nil {
1040				log.Printf("unable to save image: %s", err)
1041				return
1042			}
1043			var d Donk
1044			d.FileID = fileid
1045			honk.Donks = append(honk.Donks, &d)
1046			donkxid = d.XID
1047		}
1048	} else {
1049		xid := donkxid
1050		url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
1051		donk := finddonk(url)
1052		if donk != nil {
1053			honk.Donks = append(honk.Donks, donk)
1054		} else {
1055			log.Printf("can't find file: %s", xid)
1056		}
1057	}
1058	herd := herdofemus(honk.Noise)
1059	for _, e := range herd {
1060		donk := savedonk(e.ID, e.Name, e.Name, "image/png", true)
1061		if donk != nil {
1062			donk.Name = e.Name
1063			honk.Donks = append(honk.Donks, donk)
1064		}
1065	}
1066	memetize(honk)
1067
1068	placename := r.FormValue("placename")
1069	placelat := r.FormValue("placelat")
1070	placelong := r.FormValue("placelong")
1071	if placename != "" || placelat != "" || placelong != "" {
1072		p := new(Place)
1073		p.Name = placename
1074		p.Latitude, _ = strconv.ParseFloat(placelat, 64)
1075		p.Longitude, _ = strconv.ParseFloat(placelong, 64)
1076		p.Url = r.FormValue("placeurl")
1077		honk.Place = p
1078	}
1079	timestart := r.FormValue("timestart")
1080	if timestart != "" {
1081		t := new(Time)
1082		now := time.Now().Local()
1083		for _, layout := range []string{"2006-01-02 3:04pm", "2006-01-02 15:04", "3:04pm", "15:04"} {
1084			start, err := time.ParseInLocation(layout, timestart, now.Location())
1085			if err == nil {
1086				if start.Year() == 0 {
1087					start = time.Date(now.Year(), now.Month(), now.Day(), start.Hour(), start.Minute(), 0, 0, now.Location())
1088				}
1089				t.StartTime = start
1090				break
1091			}
1092		}
1093		timeend := r.FormValue("timeend")
1094		dur, err := time.ParseDuration(timeend)
1095		if err == nil {
1096			t.Duration = Duration(dur)
1097		}
1098		if !t.StartTime.IsZero() {
1099			honk.What = "event"
1100			honk.Time = t
1101		}
1102	}
1103
1104	if honk.Public {
1105		honk.Whofore = 2
1106	} else {
1107		honk.Whofore = 3
1108	}
1109
1110	// back to markdown
1111	honk.Noise = noise
1112
1113	if r.FormValue("preview") == "preview" {
1114		honks := []*Honk{honk}
1115		reverbolate(userinfo.UserID, honks)
1116		templinfo := getInfo(r)
1117		templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1118		templinfo["Honks"] = honks
1119		templinfo["InReplyTo"] = r.FormValue("rid")
1120		templinfo["Noise"] = r.FormValue("noise")
1121		templinfo["SavedFile"] = donkxid
1122		templinfo["ServerMessage"] = "honk preview"
1123		err := readviews.Execute(w, "honkpage.html", templinfo)
1124		if err != nil {
1125			log.Print(err)
1126		}
1127		return
1128	}
1129
1130	if updatexid != "" {
1131		updatehonk(honk)
1132		oldjonks.Clear(honk.XID)
1133	} else {
1134		err := savehonk(honk)
1135		if err != nil {
1136			log.Printf("uh oh")
1137			return
1138		}
1139	}
1140
1141	// reload for consistency
1142	honk.Donks = nil
1143	donksforhonks([]*Honk{honk})
1144
1145	go honkworldwide(user, honk)
1146
1147	http.Redirect(w, r, honk.XID, http.StatusSeeOther)
1148}
1149
1150func showhonkers(w http.ResponseWriter, r *http.Request) {
1151	userinfo := login.GetUserInfo(r)
1152	templinfo := getInfo(r)
1153	templinfo["Honkers"] = gethonkers(userinfo.UserID)
1154	templinfo["HonkerCSRF"] = login.GetCSRF("submithonker", r)
1155	err := readviews.Execute(w, "honkers.html", templinfo)
1156	if err != nil {
1157		log.Print(err)
1158	}
1159}
1160
1161var combocache = cacheNew(cacheOptions{Filler: func(userid int64) ([]string, bool) {
1162	honkers := gethonkers(userid)
1163	var combos []string
1164	for _, h := range honkers {
1165		combos = append(combos, h.Combos...)
1166	}
1167	for i, c := range combos {
1168		if c == "-" {
1169			combos[i] = ""
1170		}
1171	}
1172	combos = oneofakind(combos)
1173	sort.Strings(combos)
1174	return combos, true
1175}})
1176
1177func showcombos(w http.ResponseWriter, r *http.Request) {
1178	userinfo := login.GetUserInfo(r)
1179	var combos []string
1180	combocache.Get(userinfo.UserID, &combos)
1181	templinfo := getInfo(r)
1182	err := readviews.Execute(w, "combos.html", templinfo)
1183	if err != nil {
1184		log.Print(err)
1185	}
1186}
1187
1188func submithonker(w http.ResponseWriter, r *http.Request) {
1189	u := login.GetUserInfo(r)
1190	name := r.FormValue("name")
1191	url := r.FormValue("url")
1192	peep := r.FormValue("peep")
1193	combos := r.FormValue("combos")
1194	honkerid, _ := strconv.ParseInt(r.FormValue("honkerid"), 10, 0)
1195
1196	defer combocache.Clear(u.UserID)
1197
1198	if honkerid > 0 {
1199		goodbye := r.FormValue("goodbye")
1200		if goodbye == "F" {
1201			db := opendatabase()
1202			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('sub')",
1203				honkerid, u.UserID)
1204			err := row.Scan(&url)
1205			if err != nil {
1206				log.Printf("can't get honker xid: %s", err)
1207				return
1208			}
1209			log.Printf("unsubscribing from %s", url)
1210			user, _ := butwhatabout(u.Username)
1211			_, err = stmtUpdateFlavor.Exec("unsub", u.UserID, url, "sub")
1212			if err != nil {
1213				log.Printf("error updating honker: %s", err)
1214				return
1215			}
1216			go itakeitallback(user, url)
1217
1218			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1219			return
1220		}
1221		if goodbye == "X" {
1222			db := opendatabase()
1223			row := db.QueryRow("select xid from honkers where honkerid = ? and userid = ? and flavor in ('unsub', 'peep')",
1224				honkerid, u.UserID)
1225			err := row.Scan(&url)
1226			if err != nil {
1227				log.Printf("can't get honker xid: %s", err)
1228				return
1229			}
1230			log.Printf("resubscribing to %s", url)
1231			user, _ := butwhatabout(u.Username)
1232			_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, "unsub")
1233			if err == nil {
1234				_, err = stmtUpdateFlavor.Exec("presub", u.UserID, url, "peep")
1235			}
1236			if err != nil {
1237				log.Printf("error updating honker: %s", err)
1238				return
1239			}
1240			go subsub(user, url)
1241
1242			http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1243			return
1244		}
1245		combos = " " + strings.TrimSpace(combos) + " "
1246		_, err := stmtUpdateHonker.Exec(name, combos, honkerid, u.UserID)
1247		if err != nil {
1248			log.Printf("update honker err: %s", err)
1249			return
1250		}
1251		http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1252		return
1253	}
1254
1255	flavor := "presub"
1256	if peep == "peep" {
1257		flavor = "peep"
1258	}
1259	p, err := investigate(url)
1260	if err != nil {
1261		http.Error(w, "error investigating: "+err.Error(), http.StatusInternalServerError)
1262		log.Printf("failed to investigate honker: %s", err)
1263		return
1264	}
1265	url = p.XID
1266
1267	db := opendatabase()
1268	row := db.QueryRow("select xid from honkers where xid = ? and userid = ? and flavor in ('sub', 'unsub', 'peep')", url, u.UserID)
1269	var x string
1270	err = row.Scan(&x)
1271	if err != sql.ErrNoRows {
1272		http.Error(w, "it seems you are already subscribed to them", http.StatusInternalServerError)
1273		if err != nil {
1274			log.Printf("honker scan err: %s", err)
1275		}
1276		return
1277	}
1278
1279	if name == "" {
1280		name = p.Handle
1281	}
1282	_, err = stmtSaveHonker.Exec(u.UserID, name, url, flavor, combos)
1283	if err != nil {
1284		log.Print(err)
1285		return
1286	}
1287	if flavor == "presub" {
1288		user, _ := butwhatabout(u.Username)
1289		go subsub(user, url)
1290	}
1291	http.Redirect(w, r, "/honkers", http.StatusSeeOther)
1292}
1293
1294func hfcspage(w http.ResponseWriter, r *http.Request) {
1295	userinfo := login.GetUserInfo(r)
1296
1297	filters := getfilters(userinfo.UserID, filtAny)
1298
1299	templinfo := getInfo(r)
1300	templinfo["Filters"] = filters
1301	templinfo["FilterCSRF"] = login.GetCSRF("filter", r)
1302	err := readviews.Execute(w, "hfcs.html", templinfo)
1303	if err != nil {
1304		log.Print(err)
1305	}
1306}
1307
1308func savehfcs(w http.ResponseWriter, r *http.Request) {
1309	userinfo := login.GetUserInfo(r)
1310	itsok := r.FormValue("itsok")
1311	if itsok == "iforgiveyou" {
1312		hfcsid, _ := strconv.ParseInt(r.FormValue("hfcsid"), 10, 0)
1313		_, err := stmtDeleteFilter.Exec(userinfo.UserID, hfcsid)
1314		if err != nil {
1315			log.Printf("error deleting filter: %s", err)
1316		}
1317		filtcache.Clear(userinfo.UserID)
1318		http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1319		return
1320	}
1321
1322	filt := new(Filter)
1323	filt.Name = r.FormValue("name")
1324	filt.Date = time.Now().UTC()
1325	filt.Actor = r.FormValue("actor")
1326	filt.IncludeAudience = r.FormValue("incaud") == "yes"
1327	filt.Text = r.FormValue("filttext")
1328	filt.IsAnnounce = r.FormValue("isannounce") == "yes"
1329	filt.AnnounceOf = r.FormValue("announceof")
1330	filt.Reject = r.FormValue("doreject") == "yes"
1331	filt.SkipMedia = r.FormValue("doskipmedia") == "yes"
1332	filt.Hide = r.FormValue("dohide") == "yes"
1333	filt.Collapse = r.FormValue("docollapse") == "yes"
1334	filt.Rewrite = r.FormValue("filtrewrite")
1335	filt.Replace = r.FormValue("filtreplace")
1336
1337	if filt.Actor == "" && filt.Text == "" {
1338		log.Printf("blank filter")
1339		return
1340	}
1341
1342	j, err := jsonify(filt)
1343	if err == nil {
1344		_, err = stmtSaveFilter.Exec(userinfo.UserID, j)
1345	}
1346	if err != nil {
1347		log.Printf("error saving filter: %s", err)
1348	}
1349
1350	filtcache.Clear(userinfo.UserID)
1351	http.Redirect(w, r, "/hfcs", http.StatusSeeOther)
1352}
1353
1354func accountpage(w http.ResponseWriter, r *http.Request) {
1355	u := login.GetUserInfo(r)
1356	user, _ := butwhatabout(u.Username)
1357	templinfo := getInfo(r)
1358	templinfo["UserCSRF"] = login.GetCSRF("saveuser", r)
1359	templinfo["LogoutCSRF"] = login.GetCSRF("logout", r)
1360	templinfo["User"] = user
1361	err := readviews.Execute(w, "account.html", templinfo)
1362	if err != nil {
1363		log.Print(err)
1364	}
1365}
1366
1367func dochpass(w http.ResponseWriter, r *http.Request) {
1368	err := login.ChangePassword(w, r)
1369	if err != nil {
1370		log.Printf("error changing password: %s", err)
1371	}
1372	http.Redirect(w, r, "/account", http.StatusSeeOther)
1373}
1374
1375func fingerlicker(w http.ResponseWriter, r *http.Request) {
1376	orig := r.FormValue("resource")
1377
1378	log.Printf("finger lick: %s", orig)
1379
1380	if strings.HasPrefix(orig, "acct:") {
1381		orig = orig[5:]
1382	}
1383
1384	name := orig
1385	idx := strings.LastIndexByte(name, '/')
1386	if idx != -1 {
1387		name = name[idx+1:]
1388		if fmt.Sprintf("https://%s/%s/%s", serverName, userSep, name) != orig {
1389			log.Printf("foreign request rejected")
1390			name = ""
1391		}
1392	} else {
1393		idx = strings.IndexByte(name, '@')
1394		if idx != -1 {
1395			name = name[:idx]
1396			if name+"@"+serverName != orig {
1397				log.Printf("foreign request rejected")
1398				name = ""
1399			}
1400		}
1401	}
1402	user, err := butwhatabout(name)
1403	if err != nil {
1404		http.NotFound(w, r)
1405		return
1406	}
1407	if stealthmode(user.ID, r) {
1408		http.NotFound(w, r)
1409		return
1410	}
1411
1412	j := junk.New()
1413	j["subject"] = fmt.Sprintf("acct:%s@%s", user.Name, serverName)
1414	j["aliases"] = []string{user.URL}
1415	var links []junk.Junk
1416	l := junk.New()
1417	l["rel"] = "self"
1418	l["type"] = `application/activity+json`
1419	l["href"] = user.URL
1420	links = append(links, l)
1421	j["links"] = links
1422
1423	w.Header().Set("Cache-Control", "max-age=3600")
1424	w.Header().Set("Content-Type", "application/jrd+json")
1425	j.Write(w)
1426}
1427
1428func somedays() string {
1429	secs := 432000 + notrand.Int63n(432000)
1430	return fmt.Sprintf("%d", secs)
1431}
1432
1433func avatate(w http.ResponseWriter, r *http.Request) {
1434	n := r.FormValue("a")
1435	a := avatar(n)
1436	w.Header().Set("Cache-Control", "max-age="+somedays())
1437	w.Write(a)
1438}
1439
1440func servecss(w http.ResponseWriter, r *http.Request) {
1441	fd, err := os.Open("views" + r.URL.Path)
1442	if err != nil {
1443		http.NotFound(w, r)
1444		return
1445	}
1446	w.Header().Set("Cache-Control", "max-age=0")
1447	w.Header().Set("Content-Type", "text/css; charset=utf-8")
1448	err = css.Filter(fd, w)
1449	if err != nil {
1450		log.Printf("error filtering css: %s", err)
1451	}
1452}
1453func serveasset(w http.ResponseWriter, r *http.Request) {
1454	w.Header().Set("Cache-Control", "max-age=7776000")
1455	http.ServeFile(w, r, "views"+r.URL.Path)
1456}
1457func servehelp(w http.ResponseWriter, r *http.Request) {
1458	name := mux.Vars(r)["name"]
1459	w.Header().Set("Cache-Control", "max-age=600")
1460	http.ServeFile(w, r, "docs/"+name)
1461}
1462func servehtml(w http.ResponseWriter, r *http.Request) {
1463	templinfo := getInfo(r)
1464	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
1465	if err != nil {
1466		log.Print(err)
1467	}
1468}
1469func serveemu(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, "emus/"+xid)
1473}
1474func servememe(w http.ResponseWriter, r *http.Request) {
1475	xid := mux.Vars(r)["xid"]
1476	w.Header().Set("Cache-Control", "max-age="+somedays())
1477	http.ServeFile(w, r, "memes/"+xid)
1478}
1479
1480func servefile(w http.ResponseWriter, r *http.Request) {
1481	xid := mux.Vars(r)["xid"]
1482	row := stmtGetFileData.QueryRow(xid)
1483	var media string
1484	var data []byte
1485	err := row.Scan(&media, &data)
1486	if err != nil {
1487		log.Printf("error loading file: %s", err)
1488		http.NotFound(w, r)
1489		return
1490	}
1491	w.Header().Set("Content-Type", media)
1492	w.Header().Set("X-Content-Type-Options", "nosniff")
1493	w.Header().Set("Cache-Control", "max-age="+somedays())
1494	w.Write(data)
1495}
1496
1497func nomoroboto(w http.ResponseWriter, r *http.Request) {
1498	io.WriteString(w, "User-agent: *\n")
1499	io.WriteString(w, "Disallow: /a\n")
1500	io.WriteString(w, "Disallow: /d\n")
1501	io.WriteString(w, "Disallow: /meme\n")
1502	for _, u := range allusers() {
1503		fmt.Fprintf(w, "Disallow: /%s/%s/%s/\n", userSep, u.Username, honkSep)
1504	}
1505}
1506
1507func webhydra(w http.ResponseWriter, r *http.Request) {
1508	u := login.GetUserInfo(r)
1509	userid := u.UserID
1510	templinfo := getInfo(r)
1511	templinfo["HonkCSRF"] = login.GetCSRF("honkhonk", r)
1512	page := r.FormValue("page")
1513	var honks []*Honk
1514	switch page {
1515	case "atme":
1516		honks = gethonksforme(userid)
1517		templinfo["ServerMessage"] = "at me!"
1518	case "home":
1519		honks = gethonksforuser(userid)
1520		honks = osmosis(honks, userid)
1521		templinfo["ServerMessage"] = serverMsg
1522	case "first":
1523		honks = gethonksforuserfirstclass(userid)
1524		honks = osmosis(honks, userid)
1525		templinfo["ServerMessage"] = "first class only"
1526	case "combo":
1527		c := r.FormValue("c")
1528		honks = gethonksbycombo(userid, c)
1529		templinfo["ServerMessage"] = "honks by combo: " + c
1530	case "convoy":
1531		c := r.FormValue("c")
1532		honks = gethonksbyconvoy(userid, c)
1533		templinfo["ServerMessage"] = "honks in convoy: " + c
1534	case "honker":
1535		xid := r.FormValue("xid")
1536		if strings.IndexByte(xid, '@') != -1 {
1537			xid = gofish(xid)
1538		}
1539		honks = gethonksbyxonker(userid, xid)
1540		xid = html.EscapeString(xid)
1541		msg := fmt.Sprintf(`honks by honker: <a href="%s" ref="noreferrer">%s</a>`, xid, xid)
1542		templinfo["ServerMessage"] = template.HTML(msg)
1543	default:
1544		http.NotFound(w, r)
1545	}
1546	if len(honks) > 0 {
1547		templinfo["TopXID"] = honks[0].XID
1548	}
1549	if topxid := r.FormValue("topxid"); topxid != "" {
1550		for i, h := range honks {
1551			if h.XID == topxid {
1552				honks = honks[0:i]
1553				break
1554			}
1555		}
1556		log.Printf("topxid %d frags", len(honks))
1557	}
1558	reverbolate(userid, honks)
1559	templinfo["Honks"] = honks
1560	w.Header().Set("Content-Type", "text/html; charset=utf-8")
1561	err := readviews.Execute(w, "honkfrags.html", templinfo)
1562	if err != nil {
1563		log.Printf("frag error: %s", err)
1564	}
1565}
1566
1567func serve() {
1568	db := opendatabase()
1569	login.Init(db)
1570
1571	listener, err := openListener()
1572	if err != nil {
1573		log.Fatal(err)
1574	}
1575	go redeliverator()
1576
1577	debug := false
1578	getconfig("debug", &debug)
1579	readviews = templates.Load(debug,
1580		"views/honkpage.html",
1581		"views/honkfrags.html",
1582		"views/honkers.html",
1583		"views/hfcs.html",
1584		"views/combos.html",
1585		"views/honkform.html",
1586		"views/honk.html",
1587		"views/account.html",
1588		"views/about.html",
1589		"views/funzone.html",
1590		"views/login.html",
1591		"views/xzone.html",
1592		"views/header.html",
1593		"views/onts.html",
1594		"views/honkpage.js",
1595	)
1596	if !debug {
1597		assets := []string{"views/style.css", "views/local.css", "views/honkpage.js"}
1598		for _, s := range assets {
1599			savedassetparams[s] = getassetparam(s)
1600		}
1601	}
1602
1603	mux := mux.NewRouter()
1604	mux.Use(login.Checker)
1605
1606	posters := mux.Methods("POST").Subrouter()
1607	getters := mux.Methods("GET").Subrouter()
1608
1609	getters.HandleFunc("/", homepage)
1610	getters.HandleFunc("/home", homepage)
1611	getters.HandleFunc("/front", homepage)
1612	getters.HandleFunc("/robots.txt", nomoroboto)
1613	getters.HandleFunc("/rss", showrss)
1614	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}", showuser)
1615	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/"+honkSep+"/{xid:[[:alnum:]]+}", showhonk)
1616	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/rss", showrss)
1617	posters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/inbox", inbox)
1618	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/outbox", outbox)
1619	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/followers", emptiness)
1620	getters.HandleFunc("/"+userSep+"/{name:[[:alnum:]]+}/following", emptiness)
1621	getters.HandleFunc("/a", avatate)
1622	getters.HandleFunc("/o", thelistingoftheontologies)
1623	getters.HandleFunc("/o/{name:.+}", showontology)
1624	getters.HandleFunc("/d/{xid:[[:alnum:].]+}", servefile)
1625	getters.HandleFunc("/emu/{xid:[[:alnum:]_.-]+}", serveemu)
1626	getters.HandleFunc("/meme/{xid:[[:alnum:]_.-]+}", servememe)
1627	getters.HandleFunc("/.well-known/webfinger", fingerlicker)
1628
1629	getters.HandleFunc("/style.css", servecss)
1630	getters.HandleFunc("/local.css", servecss)
1631	getters.HandleFunc("/honkpage.js", serveasset)
1632	getters.HandleFunc("/about", servehtml)
1633	getters.HandleFunc("/login", servehtml)
1634	posters.HandleFunc("/dologin", login.LoginFunc)
1635	getters.HandleFunc("/logout", login.LogoutFunc)
1636	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
1637
1638	loggedin := mux.NewRoute().Subrouter()
1639	loggedin.Use(login.Required)
1640	loggedin.HandleFunc("/account", accountpage)
1641	loggedin.HandleFunc("/funzone", showfunzone)
1642	loggedin.HandleFunc("/chpass", dochpass)
1643	loggedin.HandleFunc("/atme", homepage)
1644	loggedin.HandleFunc("/hfcs", hfcspage)
1645	loggedin.HandleFunc("/xzone", xzone)
1646	loggedin.HandleFunc("/edit", edithonkpage)
1647	loggedin.Handle("/honk", login.CSRFWrap("honkhonk", http.HandlerFunc(submithonk)))
1648	loggedin.Handle("/bonk", login.CSRFWrap("honkhonk", http.HandlerFunc(submitbonk)))
1649	loggedin.Handle("/zonkit", login.CSRFWrap("honkhonk", http.HandlerFunc(zonkit)))
1650	loggedin.Handle("/savehfcs", login.CSRFWrap("filter", http.HandlerFunc(savehfcs)))
1651	loggedin.Handle("/saveuser", login.CSRFWrap("saveuser", http.HandlerFunc(saveuser)))
1652	loggedin.Handle("/ximport", login.CSRFWrap("ximport", http.HandlerFunc(ximport)))
1653	loggedin.HandleFunc("/honkers", showhonkers)
1654	loggedin.HandleFunc("/h/{name:[[:alnum:]_.-]+}", showhonker)
1655	loggedin.HandleFunc("/h", showhonker)
1656	loggedin.HandleFunc("/c/{name:[[:alnum:]_.-]+}", showcombo)
1657	loggedin.HandleFunc("/c", showcombos)
1658	loggedin.HandleFunc("/t", showconvoy)
1659	loggedin.HandleFunc("/q", showsearch)
1660	loggedin.HandleFunc("/hydra", webhydra)
1661	loggedin.Handle("/submithonker", login.CSRFWrap("submithonker", http.HandlerFunc(submithonker)))
1662
1663	err = http.Serve(listener, mux)
1664	if err != nil {
1665		log.Fatal(err)
1666	}
1667}