all repos — honk @ 1e53f94620a8e0142b842bac9cfc113f5d90b7e3

my fork of honk

database.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	"encoding/json"
 22	"fmt"
 23	"log"
 24	"sort"
 25	"strconv"
 26	"strings"
 27	"time"
 28
 29	"humungus.tedunangst.com/r/webs/cache"
 30	"humungus.tedunangst.com/r/webs/httpsig"
 31	"humungus.tedunangst.com/r/webs/login"
 32)
 33
 34func userfromrow(row *sql.Row) (*WhatAbout, error) {
 35	user := new(WhatAbout)
 36	var seckey, options string
 37	err := row.Scan(&user.ID, &user.Name, &user.Display, &user.About, &user.Key, &seckey, &options)
 38	if err == nil {
 39		user.SecKey, _, err = httpsig.DecodeKey(seckey)
 40	}
 41	if err != nil {
 42		return nil, err
 43	}
 44	if user.ID > 0 {
 45		user.URL = fmt.Sprintf("https://%s/%s/%s", serverName, userSep, user.Name)
 46		err = unjsonify(options, &user.Options)
 47		if err != nil {
 48			log.Printf("error processing user options: %s", err)
 49		}
 50	} else {
 51		user.URL = fmt.Sprintf("https://%s/%s", serverName, user.Name)
 52	}
 53	if user.Options.Reaction == "" {
 54		user.Options.Reaction = "none"
 55	}
 56	return user, nil
 57}
 58
 59var somenamedusers = cache.New(cache.Options{Filler: func(name string) (*WhatAbout, bool) {
 60	row := stmtUserByName.QueryRow(name)
 61	user, err := userfromrow(row)
 62	if err != nil {
 63		return nil, false
 64	}
 65	return user, true
 66}})
 67
 68var somenumberedusers = cache.New(cache.Options{Filler: func(userid int64) (*WhatAbout, bool) {
 69	row := stmtUserByNumber.QueryRow(userid)
 70	user, err := userfromrow(row)
 71	if err != nil {
 72		return nil, false
 73	}
 74	return user, true
 75}})
 76
 77func getserveruser() *WhatAbout {
 78	var user *WhatAbout
 79	ok := somenumberedusers.Get(serverUID, &user)
 80	if !ok {
 81		log.Panicf("lost server user")
 82	}
 83	return user
 84}
 85
 86func butwhatabout(name string) (*WhatAbout, error) {
 87	var user *WhatAbout
 88	ok := somenamedusers.Get(name, &user)
 89	if !ok {
 90		return nil, fmt.Errorf("no user: %s", name)
 91	}
 92	return user, nil
 93}
 94
 95var honkerinvalidator cache.Invalidator
 96
 97func gethonkers(userid int64) []*Honker {
 98	rows, err := stmtHonkers.Query(userid)
 99	if err != nil {
100		log.Printf("error querying honkers: %s", err)
101		return nil
102	}
103	defer rows.Close()
104	var honkers []*Honker
105	for rows.Next() {
106		h := new(Honker)
107		var combos, meta string
108		err = rows.Scan(&h.ID, &h.UserID, &h.Name, &h.XID, &h.Flavor, &combos, &meta)
109		if err == nil {
110			err = unjsonify(meta, &h.Meta)
111		}
112		if err != nil {
113			log.Printf("error scanning honker: %s", err)
114			continue
115		}
116		h.Combos = strings.Split(strings.TrimSpace(combos), " ")
117		honkers = append(honkers, h)
118	}
119	return honkers
120}
121
122func getdubs(userid int64) []*Honker {
123	rows, err := stmtDubbers.Query(userid)
124	return dubsfromrows(rows, err)
125}
126
127func getnameddubs(userid int64, name string) []*Honker {
128	rows, err := stmtNamedDubbers.Query(userid, name)
129	return dubsfromrows(rows, err)
130}
131
132func dubsfromrows(rows *sql.Rows, err error) []*Honker {
133	if err != nil {
134		log.Printf("error querying dubs: %s", err)
135		return nil
136	}
137	defer rows.Close()
138	var honkers []*Honker
139	for rows.Next() {
140		h := new(Honker)
141		err = rows.Scan(&h.ID, &h.UserID, &h.Name, &h.XID, &h.Flavor)
142		if err != nil {
143			log.Printf("error scanning honker: %s", err)
144			return nil
145		}
146		honkers = append(honkers, h)
147	}
148	return honkers
149}
150
151func allusers() []login.UserInfo {
152	var users []login.UserInfo
153	rows, _ := opendatabase().Query("select userid, username from users where userid > 0")
154	defer rows.Close()
155	for rows.Next() {
156		var u login.UserInfo
157		rows.Scan(&u.UserID, &u.Username)
158		users = append(users, u)
159	}
160	return users
161}
162
163func getxonk(userid int64, xid string) *Honk {
164	row := stmtOneXonk.QueryRow(userid, xid)
165	return scanhonk(row)
166}
167
168func getbonk(userid int64, xid string) *Honk {
169	row := stmtOneBonk.QueryRow(userid, xid)
170	return scanhonk(row)
171}
172
173func getpublichonks() []*Honk {
174	dt := time.Now().UTC().Add(-7 * 24 * time.Hour).Format(dbtimeformat)
175	rows, err := stmtPublicHonks.Query(dt, 100)
176	return getsomehonks(rows, err)
177}
178func geteventhonks(userid int64) []*Honk {
179	rows, err := stmtEventHonks.Query(userid, 25)
180	honks := getsomehonks(rows, err)
181	sort.Slice(honks, func(i, j int) bool {
182		var t1, t2 time.Time
183		if honks[i].Time == nil {
184			t1 = honks[i].Date
185		} else {
186			t1 = honks[i].Time.StartTime
187		}
188		if honks[j].Time == nil {
189			t2 = honks[j].Date
190		} else {
191			t2 = honks[j].Time.StartTime
192		}
193		return t1.After(t2)
194	})
195	now := time.Now().Add(-24 * time.Hour)
196	for i, h := range honks {
197		t := h.Date
198		if tm := h.Time; tm != nil {
199			t = tm.StartTime
200		}
201		if t.Before(now) {
202			honks = honks[:i]
203			break
204		}
205	}
206	reversehonks(honks)
207	return honks
208}
209func gethonksbyuser(name string, includeprivate bool, wanted int64) []*Honk {
210	dt := time.Now().UTC().Add(-7 * 24 * time.Hour).Format(dbtimeformat)
211	limit := 50
212	whofore := 2
213	if includeprivate {
214		whofore = 3
215	}
216	rows, err := stmtUserHonks.Query(wanted, whofore, name, dt, limit)
217	return getsomehonks(rows, err)
218}
219func gethonksforuser(userid int64, wanted int64) []*Honk {
220	dt := time.Now().UTC().Add(-7 * 24 * time.Hour).Format(dbtimeformat)
221	rows, err := stmtHonksForUser.Query(wanted, userid, dt, userid, userid)
222	return getsomehonks(rows, err)
223}
224func gethonksforuserfirstclass(userid int64, wanted int64) []*Honk {
225	dt := time.Now().UTC().Add(-7 * 24 * time.Hour).Format(dbtimeformat)
226	rows, err := stmtHonksForUserFirstClass.Query(wanted, userid, dt, userid, userid)
227	return getsomehonks(rows, err)
228}
229
230func gethonksforme(userid int64, wanted int64) []*Honk {
231	dt := time.Now().UTC().Add(-7 * 24 * time.Hour).Format(dbtimeformat)
232	rows, err := stmtHonksForMe.Query(wanted, userid, dt, userid)
233	return getsomehonks(rows, err)
234}
235func getsavedhonks(userid int64, wanted int64) []*Honk {
236	rows, err := stmtHonksISaved.Query(wanted, userid)
237	return getsomehonks(rows, err)
238}
239func gethonksbyhonker(userid int64, honker string, wanted int64) []*Honk {
240	rows, err := stmtHonksByHonker.Query(wanted, userid, honker, userid)
241	return getsomehonks(rows, err)
242}
243func gethonksbyxonker(userid int64, xonker string, wanted int64) []*Honk {
244	rows, err := stmtHonksByXonker.Query(wanted, userid, xonker, xonker, userid)
245	return getsomehonks(rows, err)
246}
247func gethonksbycombo(userid int64, combo string, wanted int64) []*Honk {
248	combo = "% " + combo + " %"
249	rows, err := stmtHonksByCombo.Query(wanted, userid, userid, combo, userid, wanted, userid, combo, userid)
250	return getsomehonks(rows, err)
251}
252func gethonksbyconvoy(userid int64, convoy string, wanted int64) []*Honk {
253	rows, err := stmtHonksByConvoy.Query(wanted, userid, userid, convoy)
254	honks := getsomehonks(rows, err)
255	return honks
256}
257func gethonksbysearch(userid int64, q string, wanted int64) []*Honk {
258	var queries []string
259	var params []interface{}
260	queries = append(queries, "honks.honkid > ?")
261	params = append(params, wanted)
262	queries = append(queries, "honks.userid = ?")
263	params = append(params, userid)
264
265	terms := strings.Split(q, " ")
266	for _, t := range terms {
267		negate := " "
268		if t[0] == '-' {
269			t = t[1:]
270			negate = " not "
271		}
272		if t == "" {
273			continue
274		}
275		if strings.HasPrefix(t, "site:") {
276			site := t[5:]
277			site = "%" + site + "%"
278			queries = append(queries, "xid"+negate+"like ?")
279			params = append(params, site)
280			continue
281		}
282		if strings.HasPrefix(t, "honker:") {
283			honker := t[7:]
284			xid := fullname(honker, userid)
285			if xid != "" {
286				honker = xid
287			}
288			queries = append(queries, negate+"(honks.honker = ? or honks.oonker = ?)")
289			params = append(params, honker)
290			params = append(params, honker)
291			continue
292		}
293		t = "%" + t + "%"
294		queries = append(queries, "noise"+negate+"like ?")
295		params = append(params, t)
296	}
297
298	selecthonks := "select honks.honkid, honks.userid, username, what, honker, oonker, honks.xid, rid, dt, url, audience, noise, precis, format, convoy, whofore, flags from honks join users on honks.userid = users.userid "
299	where := "where " + strings.Join(queries, " and ")
300	butnotthose := " and convoy not in (select name from zonkers where userid = ? and wherefore = 'zonvoy' order by zonkerid desc limit 100)"
301	limit := " order by honks.honkid desc limit 250"
302	params = append(params, userid)
303	rows, err := opendatabase().Query(selecthonks+where+butnotthose+limit, params...)
304	honks := getsomehonks(rows, err)
305	return honks
306}
307func gethonksbyontology(userid int64, name string, wanted int64) []*Honk {
308	rows, err := stmtHonksByOntology.Query(wanted, name, userid, userid)
309	honks := getsomehonks(rows, err)
310	return honks
311}
312
313func reversehonks(honks []*Honk) {
314	for i, j := 0, len(honks)-1; i < j; i, j = i+1, j-1 {
315		honks[i], honks[j] = honks[j], honks[i]
316	}
317}
318
319func getsomehonks(rows *sql.Rows, err error) []*Honk {
320	if err != nil {
321		log.Printf("error querying honks: %s", err)
322		return nil
323	}
324	defer rows.Close()
325	var honks []*Honk
326	for rows.Next() {
327		h := scanhonk(rows)
328		if h != nil {
329			honks = append(honks, h)
330		}
331	}
332	rows.Close()
333	donksforhonks(honks)
334	return honks
335}
336
337type RowLike interface {
338	Scan(dest ...interface{}) error
339}
340
341func scanhonk(row RowLike) *Honk {
342	h := new(Honk)
343	var dt, aud string
344	err := row.Scan(&h.ID, &h.UserID, &h.Username, &h.What, &h.Honker, &h.Oonker, &h.XID, &h.RID,
345		&dt, &h.URL, &aud, &h.Noise, &h.Precis, &h.Format, &h.Convoy, &h.Whofore, &h.Flags)
346	if err != nil {
347		if err != sql.ErrNoRows {
348			log.Printf("error scanning honk: %s", err)
349		}
350		return nil
351	}
352	h.Date, _ = time.Parse(dbtimeformat, dt)
353	h.Audience = strings.Split(aud, " ")
354	h.Public = loudandproud(h.Audience)
355	return h
356}
357
358func donksforhonks(honks []*Honk) {
359	db := opendatabase()
360	var ids []string
361	hmap := make(map[int64]*Honk)
362	for _, h := range honks {
363		ids = append(ids, fmt.Sprintf("%d", h.ID))
364		hmap[h.ID] = h
365	}
366	idset := strings.Join(ids, ",")
367	// grab donks
368	q := fmt.Sprintf("select honkid, donks.fileid, xid, name, description, url, media, local from donks join filemeta on donks.fileid = filemeta.fileid where honkid in (%s)", idset)
369	rows, err := db.Query(q)
370	if err != nil {
371		log.Printf("error querying donks: %s", err)
372		return
373	}
374	defer rows.Close()
375	for rows.Next() {
376		var hid int64
377		d := new(Donk)
378		err = rows.Scan(&hid, &d.FileID, &d.XID, &d.Name, &d.Desc, &d.URL, &d.Media, &d.Local)
379		if err != nil {
380			log.Printf("error scanning donk: %s", err)
381			continue
382		}
383		h := hmap[hid]
384		h.Donks = append(h.Donks, d)
385	}
386	rows.Close()
387
388	// grab onts
389	q = fmt.Sprintf("select honkid, ontology from onts where honkid in (%s)", idset)
390	rows, err = db.Query(q)
391	if err != nil {
392		log.Printf("error querying onts: %s", err)
393		return
394	}
395	defer rows.Close()
396	for rows.Next() {
397		var hid int64
398		var o string
399		err = rows.Scan(&hid, &o)
400		if err != nil {
401			log.Printf("error scanning donk: %s", err)
402			continue
403		}
404		h := hmap[hid]
405		h.Onts = append(h.Onts, o)
406	}
407	rows.Close()
408
409	// grab meta
410	q = fmt.Sprintf("select honkid, genus, json from honkmeta where honkid in (%s)", idset)
411	rows, err = db.Query(q)
412	if err != nil {
413		log.Printf("error querying honkmeta: %s", err)
414		return
415	}
416	defer rows.Close()
417	for rows.Next() {
418		var hid int64
419		var genus, j string
420		err = rows.Scan(&hid, &genus, &j)
421		if err != nil {
422			log.Printf("error scanning honkmeta: %s", err)
423			continue
424		}
425		h := hmap[hid]
426		switch genus {
427		case "place":
428			p := new(Place)
429			err = unjsonify(j, p)
430			if err != nil {
431				log.Printf("error parsing place: %s", err)
432				continue
433			}
434			h.Place = p
435		case "time":
436			t := new(Time)
437			err = unjsonify(j, t)
438			if err != nil {
439				log.Printf("error parsing time: %s", err)
440				continue
441			}
442			h.Time = t
443		case "mentions":
444			err = unjsonify(j, &h.Mentions)
445			if err != nil {
446				log.Printf("error parsing mentions: %s", err)
447				continue
448			}
449		case "oldrev":
450		default:
451			log.Printf("unknown meta genus: %s", genus)
452		}
453	}
454	rows.Close()
455}
456
457func donksforchonks(chonks []*Chonk) {
458	db := opendatabase()
459	var ids []string
460	chmap := make(map[int64]*Chonk)
461	for _, ch := range chonks {
462		ids = append(ids, fmt.Sprintf("%d", ch.ID))
463		chmap[ch.ID] = ch
464	}
465	idset := strings.Join(ids, ",")
466	// grab donks
467	q := fmt.Sprintf("select chonkid, donks.fileid, xid, name, description, url, media, local from donks join filemeta on donks.fileid = filemeta.fileid where chonkid in (%s)", idset)
468	rows, err := db.Query(q)
469	if err != nil {
470		log.Printf("error querying donks: %s", err)
471		return
472	}
473	defer rows.Close()
474	for rows.Next() {
475		var chid int64
476		d := new(Donk)
477		err = rows.Scan(&chid, &d.FileID, &d.XID, &d.Name, &d.Desc, &d.URL, &d.Media, &d.Local)
478		if err != nil {
479			log.Printf("error scanning donk: %s", err)
480			continue
481		}
482		ch := chmap[chid]
483		ch.Donks = append(ch.Donks, d)
484	}
485}
486
487func savefile(xid string, name string, desc string, url string, media string, local bool, data []byte) (int64, error) {
488	res, err := stmtSaveFile.Exec(xid, name, desc, url, media, local)
489	if err != nil {
490		return 0, err
491	}
492	fileid, _ := res.LastInsertId()
493	if local {
494		_, err = stmtSaveFileData.Exec(xid, media, data)
495		if err != nil {
496			return 0, err
497		}
498	}
499	return fileid, nil
500}
501
502func finddonk(url string) *Donk {
503	donk := new(Donk)
504	row := stmtFindFile.QueryRow(url)
505	err := row.Scan(&donk.FileID, &donk.XID)
506	if err == nil {
507		return donk
508	}
509	if err != sql.ErrNoRows {
510		log.Printf("error finding file: %s", err)
511	}
512	return nil
513}
514
515func savechonk(ch *Chonk) error {
516	dt := ch.Date.UTC().Format(dbtimeformat)
517	db := opendatabase()
518	tx, err := db.Begin()
519	if err != nil {
520		log.Printf("can't begin tx: %s", err)
521		return err
522	}
523
524	res, err := tx.Stmt(stmtSaveChonk).Exec(ch.UserID, ch.XID, ch.Who, ch.Target, dt, ch.Noise, ch.Format)
525	if err == nil {
526		ch.ID, _ = res.LastInsertId()
527		for _, d := range ch.Donks {
528			_, err := tx.Stmt(stmtSaveDonk).Exec(-1, ch.ID, d.FileID)
529			if err != nil {
530				log.Printf("error saving donk: %s", err)
531				break
532			}
533		}
534		err = tx.Commit()
535	} else {
536		tx.Rollback()
537	}
538	return err
539}
540
541func loadchatter(userid int64) map[string][]*Chonk {
542	rows, err := stmtLoadChonks.Query(userid)
543	if err != nil {
544		log.Printf("error loading chonks: %s", err)
545		return nil
546	}
547	defer rows.Close()
548	chonks := make(map[string][]*Chonk)
549	for rows.Next() {
550		ch := new(Chonk)
551		var dt string
552		err = rows.Scan(&ch.ID, &ch.UserID, &ch.XID, &ch.Who, &ch.Target, &dt, &ch.Noise, &ch.Format)
553		if err != nil {
554			log.Printf("error scanning chonk: %s", err)
555			continue
556		}
557		ch.Date, _ = time.Parse(dbtimeformat, dt)
558		chonks[ch.Target] = append(chonks[ch.Target], ch)
559	}
560	return chonks
561}
562
563func savehonk(h *Honk) error {
564	dt := h.Date.UTC().Format(dbtimeformat)
565	aud := strings.Join(h.Audience, " ")
566
567	db := opendatabase()
568	tx, err := db.Begin()
569	if err != nil {
570		log.Printf("can't begin tx: %s", err)
571		return err
572	}
573
574	res, err := tx.Stmt(stmtSaveHonk).Exec(h.UserID, h.What, h.Honker, h.XID, h.RID, dt, h.URL,
575		aud, h.Noise, h.Convoy, h.Whofore, h.Format, h.Precis,
576		h.Oonker, h.Flags)
577	if err == nil {
578		h.ID, _ = res.LastInsertId()
579		err = saveextras(tx, h)
580	}
581	if err == nil {
582		err = tx.Commit()
583	} else {
584		tx.Rollback()
585	}
586	if err != nil {
587		log.Printf("error saving honk: %s", err)
588	}
589	honkhonkline()
590	return err
591}
592
593func updatehonk(h *Honk) error {
594	old := getxonk(h.UserID, h.XID)
595	oldrev := OldRevision{Precis: old.Precis, Noise: old.Noise}
596	dt := h.Date.UTC().Format(dbtimeformat)
597
598	db := opendatabase()
599	tx, err := db.Begin()
600	if err != nil {
601		log.Printf("can't begin tx: %s", err)
602		return err
603	}
604
605	err = deleteextras(tx, h.ID, false)
606	if err == nil {
607		_, err = tx.Stmt(stmtUpdateHonk).Exec(h.Precis, h.Noise, h.Format, h.Whofore, dt, h.ID)
608	}
609	if err == nil {
610		err = saveextras(tx, h)
611	}
612	if err == nil {
613		var j string
614		j, err = jsonify(&oldrev)
615		if err == nil {
616			_, err = tx.Stmt(stmtSaveMeta).Exec(old.ID, "oldrev", j)
617		}
618		if err != nil {
619			log.Printf("error saving oldrev: %s", err)
620		}
621	}
622	if err == nil {
623		err = tx.Commit()
624	} else {
625		tx.Rollback()
626	}
627	if err != nil {
628		log.Printf("error updating honk %d: %s", h.ID, err)
629	}
630	return err
631}
632
633func deletehonk(honkid int64) error {
634	db := opendatabase()
635	tx, err := db.Begin()
636	if err != nil {
637		log.Printf("can't begin tx: %s", err)
638		return err
639	}
640
641	err = deleteextras(tx, honkid, true)
642	if err == nil {
643		_, err = tx.Stmt(stmtDeleteHonk).Exec(honkid)
644	}
645	if err == nil {
646		err = tx.Commit()
647	} else {
648		tx.Rollback()
649	}
650	if err != nil {
651		log.Printf("error deleting honk %d: %s", honkid, err)
652	}
653	return err
654}
655
656func saveextras(tx *sql.Tx, h *Honk) error {
657	for _, d := range h.Donks {
658		_, err := tx.Stmt(stmtSaveDonk).Exec(h.ID, -1, d.FileID)
659		if err != nil {
660			log.Printf("error saving donk: %s", err)
661			return err
662		}
663	}
664	for _, o := range h.Onts {
665		_, err := tx.Stmt(stmtSaveOnt).Exec(strings.ToLower(o), h.ID)
666		if err != nil {
667			log.Printf("error saving ont: %s", err)
668			return err
669		}
670	}
671	if p := h.Place; p != nil {
672		j, err := jsonify(p)
673		if err == nil {
674			_, err = tx.Stmt(stmtSaveMeta).Exec(h.ID, "place", j)
675		}
676		if err != nil {
677			log.Printf("error saving place: %s", err)
678			return err
679		}
680	}
681	if t := h.Time; t != nil {
682		j, err := jsonify(t)
683		if err == nil {
684			_, err = tx.Stmt(stmtSaveMeta).Exec(h.ID, "time", j)
685		}
686		if err != nil {
687			log.Printf("error saving time: %s", err)
688			return err
689		}
690	}
691	if m := h.Mentions; len(m) > 0 {
692		j, err := jsonify(m)
693		if err == nil {
694			_, err = tx.Stmt(stmtSaveMeta).Exec(h.ID, "mentions", j)
695		}
696		if err != nil {
697			log.Printf("error saving mentions: %s", err)
698			return err
699		}
700	}
701	return nil
702}
703
704func deleteextras(tx *sql.Tx, honkid int64, everything bool) error {
705	_, err := tx.Stmt(stmtDeleteDonks).Exec(honkid)
706	if err != nil {
707		return err
708	}
709	_, err = tx.Stmt(stmtDeleteOnts).Exec(honkid)
710	if err != nil {
711		return err
712	}
713	if everything {
714		_, err = tx.Stmt(stmtDeleteAllMeta).Exec(honkid)
715	} else {
716		_, err = tx.Stmt(stmtDeleteSomeMeta).Exec(honkid)
717	}
718	if err != nil {
719		return err
720	}
721	return nil
722}
723
724func jsonify(what interface{}) (string, error) {
725	var buf bytes.Buffer
726	e := json.NewEncoder(&buf)
727	e.SetEscapeHTML(false)
728	e.SetIndent("", "")
729	err := e.Encode(what)
730	return buf.String(), err
731}
732
733func unjsonify(s string, dest interface{}) error {
734	d := json.NewDecoder(strings.NewReader(s))
735	err := d.Decode(dest)
736	return err
737}
738
739func cleanupdb(arg string) {
740	db := opendatabase()
741	days, err := strconv.Atoi(arg)
742	var sqlargs []interface{}
743	var where string
744	if err != nil {
745		honker := arg
746		expdate := time.Now().UTC().Add(-3 * 24 * time.Hour).Format(dbtimeformat)
747		where = "dt < ? and honker = ?"
748		sqlargs = append(sqlargs, expdate)
749		sqlargs = append(sqlargs, honker)
750	} else {
751		expdate := time.Now().UTC().Add(-time.Duration(days) * 24 * time.Hour).Format(dbtimeformat)
752		where = "dt < ? and convoy not in (select convoy from honks where flags & 4 or whofore = 2 or whofore = 3)"
753		sqlargs = append(sqlargs, expdate)
754	}
755	doordie(db, "delete from honks where flags & 4 = 0 and whofore = 0 and "+where, sqlargs...)
756	doordie(db, "delete from donks where honkid > 0 and honkid not in (select honkid from honks)")
757	doordie(db, "delete from onts where honkid not in (select honkid from honks)")
758	doordie(db, "delete from honkmeta where honkid not in (select honkid from honks)")
759
760	doordie(db, "delete from filemeta where fileid not in (select fileid from donks)")
761	for _, u := range allusers() {
762		doordie(db, "delete from zonkers where userid = ? and wherefore = 'zonvoy' and zonkerid < (select zonkerid from zonkers where userid = ? and wherefore = 'zonvoy' order by zonkerid desc limit 1 offset 200)", u.UserID, u.UserID)
763	}
764
765	filexids := make(map[string]bool)
766	blobdb := openblobdb()
767	rows, err := blobdb.Query("select xid from filedata")
768	if err != nil {
769		log.Fatal(err)
770	}
771	for rows.Next() {
772		var xid string
773		err = rows.Scan(&xid)
774		if err != nil {
775			log.Fatal(err)
776		}
777		filexids[xid] = true
778	}
779	rows.Close()
780	rows, err = db.Query("select xid from filemeta")
781	for rows.Next() {
782		var xid string
783		err = rows.Scan(&xid)
784		if err != nil {
785			log.Fatal(err)
786		}
787		delete(filexids, xid)
788	}
789	rows.Close()
790	tx, err := blobdb.Begin()
791	if err != nil {
792		log.Fatal(err)
793	}
794	for xid, _ := range filexids {
795		_, err = tx.Exec("delete from filedata where xid = ?", xid)
796		if err != nil {
797			log.Fatal(err)
798		}
799	}
800	err = tx.Commit()
801	if err != nil {
802		log.Fatal(err)
803	}
804}
805
806var stmtHonkers, stmtDubbers, stmtNamedDubbers, stmtSaveHonker, stmtUpdateFlavor, stmtUpdateHonker *sql.Stmt
807var stmtAnyXonk, stmtOneXonk, stmtPublicHonks, stmtUserHonks, stmtHonksByCombo, stmtHonksByConvoy *sql.Stmt
808var stmtHonksByOntology, stmtHonksForUser, stmtHonksForMe, stmtSaveDub, stmtHonksByXonker *sql.Stmt
809var stmtHonksByHonker, stmtSaveHonk, stmtUserByName, stmtUserByNumber *sql.Stmt
810var stmtEventHonks, stmtOneBonk, stmtFindZonk, stmtFindXonk, stmtSaveDonk *sql.Stmt
811var stmtFindFile, stmtGetFileData, stmtSaveFileData, stmtSaveFile *sql.Stmt
812var stmtAddDoover, stmtGetDoovers, stmtLoadDoover, stmtZapDoover, stmtOneHonker *sql.Stmt
813var stmtUntagged, stmtDeleteHonk, stmtDeleteDonks, stmtDeleteOnts, stmtSaveZonker *sql.Stmt
814var stmtGetZonkers, stmtRecentHonkers, stmtGetXonker, stmtSaveXonker, stmtDeleteXonker *sql.Stmt
815var stmtAllOnts, stmtSaveOnt, stmtUpdateFlags, stmtClearFlags *sql.Stmt
816var stmtHonksForUserFirstClass *sql.Stmt
817var stmtSaveMeta, stmtDeleteAllMeta, stmtDeleteSomeMeta, stmtUpdateHonk *sql.Stmt
818var stmtHonksISaved, stmtGetFilters, stmtSaveFilter, stmtDeleteFilter *sql.Stmt
819var stmtGetTracks *sql.Stmt
820var stmtSaveChonk, stmtLoadChonks *sql.Stmt
821
822func preparetodie(db *sql.DB, s string) *sql.Stmt {
823	stmt, err := db.Prepare(s)
824	if err != nil {
825		log.Fatalf("error %s: %s", err, s)
826	}
827	return stmt
828}
829
830func prepareStatements(db *sql.DB) {
831	stmtHonkers = preparetodie(db, "select honkerid, userid, name, xid, flavor, combos, meta from honkers where userid = ? and (flavor = 'presub' or flavor = 'sub' or flavor = 'peep' or flavor = 'unsub') order by name")
832	stmtSaveHonker = preparetodie(db, "insert into honkers (userid, name, xid, flavor, combos, owner, meta) values (?, ?, ?, ?, ?, ?, ?)")
833	stmtUpdateFlavor = preparetodie(db, "update honkers set flavor = ? where userid = ? and xid = ? and name = ? and flavor = ?")
834	stmtUpdateHonker = preparetodie(db, "update honkers set name = ?, combos = ?, meta = ? where honkerid = ? and userid = ?")
835	stmtOneHonker = preparetodie(db, "select xid from honkers where name = ? and userid = ?")
836	stmtDubbers = preparetodie(db, "select honkerid, userid, name, xid, flavor from honkers where userid = ? and flavor = 'dub'")
837	stmtNamedDubbers = preparetodie(db, "select honkerid, userid, name, xid, flavor from honkers where userid = ? and name = ? and flavor = 'dub'")
838
839	selecthonks := "select honks.honkid, honks.userid, username, what, honker, oonker, honks.xid, rid, dt, url, audience, noise, precis, format, convoy, whofore, flags from honks join users on honks.userid = users.userid "
840	limit := " order by honks.honkid desc limit 250"
841	smalllimit := " order by honks.honkid desc limit ?"
842	butnotthose := " and convoy not in (select name from zonkers where userid = ? and wherefore = 'zonvoy' order by zonkerid desc limit 100)"
843	stmtOneXonk = preparetodie(db, selecthonks+"where honks.userid = ? and xid = ?")
844	stmtAnyXonk = preparetodie(db, selecthonks+"where xid = ? order by honks.honkid asc")
845	stmtOneBonk = preparetodie(db, selecthonks+"where honks.userid = ? and xid = ? and what = 'bonk' and whofore = 2")
846	stmtPublicHonks = preparetodie(db, selecthonks+"where whofore = 2 and dt > ?"+smalllimit)
847	stmtEventHonks = preparetodie(db, selecthonks+"where (whofore = 2 or honks.userid = ?) and what = 'event'"+smalllimit)
848	stmtUserHonks = preparetodie(db, selecthonks+"where honks.honkid > ? and (whofore = 2 or whofore = ?) and username = ? and dt > ?"+smalllimit)
849	myhonkers := " and honker in (select xid from honkers where userid = ? and (flavor = 'sub' or flavor = 'peep' or flavor = 'presub') and combos not like '% - %')"
850	stmtHonksForUser = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and dt > ?"+myhonkers+butnotthose+limit)
851	stmtHonksForUserFirstClass = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and dt > ? and (what <> 'tonk')"+myhonkers+butnotthose+limit)
852	stmtHonksForMe = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and dt > ? and whofore = 1"+butnotthose+limit)
853	stmtHonksISaved = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and flags & 4 order by honks.honkid desc")
854	stmtHonksByHonker = preparetodie(db, selecthonks+"join honkers on (honkers.xid = honks.honker or honkers.xid = honks.oonker) where honks.honkid > ? and honks.userid = ? and honkers.name = ?"+butnotthose+limit)
855	stmtHonksByXonker = preparetodie(db, selecthonks+" where honks.honkid > ? and honks.userid = ? and (honker = ? or oonker = ?)"+butnotthose+limit)
856	stmtHonksByCombo = preparetodie(db, selecthonks+" where honks.honkid > ? and honks.userid = ? and honks.honker in (select xid from honkers where honkers.userid = ? and honkers.combos like ?) "+butnotthose+" union "+selecthonks+"join onts on honks.honkid = onts.honkid where honks.honkid > ? and honks.userid = ? and onts.ontology in (select xid from honkers where combos like ?)"+butnotthose+limit)
857	stmtHonksByConvoy = preparetodie(db, selecthonks+"where honks.honkid > ? and (honks.userid = ? or (? = -1 and whofore = 2)) and convoy = ?"+limit)
858	stmtHonksByOntology = preparetodie(db, selecthonks+"join onts on honks.honkid = onts.honkid where honks.honkid > ? and onts.ontology = ? and (honks.userid = ? or (? = -1 and honks.whofore = 2))"+limit)
859
860	stmtSaveMeta = preparetodie(db, "insert into honkmeta (honkid, genus, json) values (?, ?, ?)")
861	stmtDeleteAllMeta = preparetodie(db, "delete from honkmeta where honkid = ?")
862	stmtDeleteSomeMeta = preparetodie(db, "delete from honkmeta where honkid = ? and genus not in ('oldrev')")
863	stmtSaveHonk = preparetodie(db, "insert into honks (userid, what, honker, xid, rid, dt, url, audience, noise, convoy, whofore, format, precis, oonker, flags) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")
864	stmtDeleteHonk = preparetodie(db, "delete from honks where honkid = ?")
865	stmtUpdateHonk = preparetodie(db, "update honks set precis = ?, noise = ?, format = ?, whofore = ?, dt = ? where honkid = ?")
866	stmtSaveOnt = preparetodie(db, "insert into onts (ontology, honkid) values (?, ?)")
867	stmtDeleteOnts = preparetodie(db, "delete from onts where honkid = ?")
868	stmtSaveDonk = preparetodie(db, "insert into donks (honkid, chonkid, fileid) values (?, ?, ?)")
869	stmtDeleteDonks = preparetodie(db, "delete from donks where honkid = ?")
870	stmtSaveFile = preparetodie(db, "insert into filemeta (xid, name, description, url, media, local) values (?, ?, ?, ?, ?, ?)")
871	blobdb := openblobdb()
872	stmtSaveFileData = preparetodie(blobdb, "insert into filedata (xid, media, content) values (?, ?, ?)")
873	stmtGetFileData = preparetodie(blobdb, "select media, content from filedata where xid = ?")
874	stmtFindXonk = preparetodie(db, "select honkid from honks where userid = ? and xid = ?")
875	stmtFindFile = preparetodie(db, "select fileid, xid from filemeta where url = ? and local = 1")
876	stmtUserByName = preparetodie(db, "select userid, username, displayname, about, pubkey, seckey, options from users where username = ? and userid > 0")
877	stmtUserByNumber = preparetodie(db, "select userid, username, displayname, about, pubkey, seckey, options from users where userid = ?")
878	stmtSaveDub = preparetodie(db, "insert into honkers (userid, name, xid, flavor) values (?, ?, ?, ?)")
879	stmtAddDoover = preparetodie(db, "insert into doovers (dt, tries, userid, rcpt, msg) values (?, ?, ?, ?, ?)")
880	stmtGetDoovers = preparetodie(db, "select dooverid, dt from doovers")
881	stmtLoadDoover = preparetodie(db, "select tries, userid, rcpt, msg from doovers where dooverid = ?")
882	stmtZapDoover = preparetodie(db, "delete from doovers where dooverid = ?")
883	stmtUntagged = preparetodie(db, "select xid, rid, flags from (select honkid, xid, rid, flags from honks where userid = ? order by honkid desc limit 10000) order by honkid asc")
884	stmtFindZonk = preparetodie(db, "select zonkerid from zonkers where userid = ? and name = ? and wherefore = 'zonk'")
885	stmtGetZonkers = preparetodie(db, "select zonkerid, name, wherefore from zonkers where userid = ? and wherefore <> 'zonk'")
886	stmtSaveZonker = preparetodie(db, "insert into zonkers (userid, name, wherefore) values (?, ?, ?)")
887	stmtGetXonker = preparetodie(db, "select info from xonkers where name = ? and flavor = ?")
888	stmtSaveXonker = preparetodie(db, "insert into xonkers (name, info, flavor, dt) values (?, ?, ?, ?)")
889	stmtDeleteXonker = preparetodie(db, "delete from xonkers where name = ? and flavor = ? and dt < ?")
890	stmtRecentHonkers = preparetodie(db, "select distinct(honker) from honks where userid = ? and honker not in (select xid from honkers where userid = ? and flavor = 'sub') order by honkid desc limit 100")
891	stmtUpdateFlags = preparetodie(db, "update honks set flags = flags | ? where honkid = ?")
892	stmtClearFlags = preparetodie(db, "update honks set flags = flags & ~ ? where honkid = ?")
893	stmtAllOnts = preparetodie(db, "select ontology, count(ontology) from onts join honks on onts.honkid = honks.honkid where (honks.userid = ? or honks.whofore = 2) group by ontology")
894	stmtGetFilters = preparetodie(db, "select hfcsid, json from hfcs where userid = ?")
895	stmtSaveFilter = preparetodie(db, "insert into hfcs (userid, json) values (?, ?)")
896	stmtDeleteFilter = preparetodie(db, "delete from hfcs where userid = ? and hfcsid = ?")
897	stmtGetTracks = preparetodie(db, "select fetches from tracks where xid = ?")
898	stmtSaveChonk = preparetodie(db, "insert into chonks (userid, xid, who, target, dt, noise, format) values (?, ?, ?, ?, ?, ?, ?)")
899	stmtLoadChonks = preparetodie(db, "select chonkid, userid, xid, who, target, dt, noise, format from chonks where userid = ?")
900}