all repos — honk @ 6a23f35877106f3ed8fb743429b58bbc16c613c4

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	var allchonks []*Chonk
550	for rows.Next() {
551		ch := new(Chonk)
552		var dt string
553		err = rows.Scan(&ch.ID, &ch.UserID, &ch.XID, &ch.Who, &ch.Target, &dt, &ch.Noise, &ch.Format)
554		if err != nil {
555			log.Printf("error scanning chonk: %s", err)
556			continue
557		}
558		ch.Date, _ = time.Parse(dbtimeformat, dt)
559		chonks[ch.Target] = append(chonks[ch.Target], ch)
560		allchonks = append(allchonks, ch)
561	}
562	donksforchonks(allchonks)
563	return chonks
564}
565
566func savehonk(h *Honk) error {
567	dt := h.Date.UTC().Format(dbtimeformat)
568	aud := strings.Join(h.Audience, " ")
569
570	db := opendatabase()
571	tx, err := db.Begin()
572	if err != nil {
573		log.Printf("can't begin tx: %s", err)
574		return err
575	}
576
577	res, err := tx.Stmt(stmtSaveHonk).Exec(h.UserID, h.What, h.Honker, h.XID, h.RID, dt, h.URL,
578		aud, h.Noise, h.Convoy, h.Whofore, h.Format, h.Precis,
579		h.Oonker, h.Flags)
580	if err == nil {
581		h.ID, _ = res.LastInsertId()
582		err = saveextras(tx, h)
583	}
584	if err == nil {
585		err = tx.Commit()
586	} else {
587		tx.Rollback()
588	}
589	if err != nil {
590		log.Printf("error saving honk: %s", err)
591	}
592	honkhonkline()
593	return err
594}
595
596func updatehonk(h *Honk) error {
597	old := getxonk(h.UserID, h.XID)
598	oldrev := OldRevision{Precis: old.Precis, Noise: old.Noise}
599	dt := h.Date.UTC().Format(dbtimeformat)
600
601	db := opendatabase()
602	tx, err := db.Begin()
603	if err != nil {
604		log.Printf("can't begin tx: %s", err)
605		return err
606	}
607
608	err = deleteextras(tx, h.ID, false)
609	if err == nil {
610		_, err = tx.Stmt(stmtUpdateHonk).Exec(h.Precis, h.Noise, h.Format, h.Whofore, dt, h.ID)
611	}
612	if err == nil {
613		err = saveextras(tx, h)
614	}
615	if err == nil {
616		var j string
617		j, err = jsonify(&oldrev)
618		if err == nil {
619			_, err = tx.Stmt(stmtSaveMeta).Exec(old.ID, "oldrev", j)
620		}
621		if err != nil {
622			log.Printf("error saving oldrev: %s", err)
623		}
624	}
625	if err == nil {
626		err = tx.Commit()
627	} else {
628		tx.Rollback()
629	}
630	if err != nil {
631		log.Printf("error updating honk %d: %s", h.ID, err)
632	}
633	return err
634}
635
636func deletehonk(honkid int64) error {
637	db := opendatabase()
638	tx, err := db.Begin()
639	if err != nil {
640		log.Printf("can't begin tx: %s", err)
641		return err
642	}
643
644	err = deleteextras(tx, honkid, true)
645	if err == nil {
646		_, err = tx.Stmt(stmtDeleteHonk).Exec(honkid)
647	}
648	if err == nil {
649		err = tx.Commit()
650	} else {
651		tx.Rollback()
652	}
653	if err != nil {
654		log.Printf("error deleting honk %d: %s", honkid, err)
655	}
656	return err
657}
658
659func saveextras(tx *sql.Tx, h *Honk) error {
660	for _, d := range h.Donks {
661		_, err := tx.Stmt(stmtSaveDonk).Exec(h.ID, -1, d.FileID)
662		if err != nil {
663			log.Printf("error saving donk: %s", err)
664			return err
665		}
666	}
667	for _, o := range h.Onts {
668		_, err := tx.Stmt(stmtSaveOnt).Exec(strings.ToLower(o), h.ID)
669		if err != nil {
670			log.Printf("error saving ont: %s", err)
671			return err
672		}
673	}
674	if p := h.Place; p != nil {
675		j, err := jsonify(p)
676		if err == nil {
677			_, err = tx.Stmt(stmtSaveMeta).Exec(h.ID, "place", j)
678		}
679		if err != nil {
680			log.Printf("error saving place: %s", err)
681			return err
682		}
683	}
684	if t := h.Time; t != nil {
685		j, err := jsonify(t)
686		if err == nil {
687			_, err = tx.Stmt(stmtSaveMeta).Exec(h.ID, "time", j)
688		}
689		if err != nil {
690			log.Printf("error saving time: %s", err)
691			return err
692		}
693	}
694	if m := h.Mentions; len(m) > 0 {
695		j, err := jsonify(m)
696		if err == nil {
697			_, err = tx.Stmt(stmtSaveMeta).Exec(h.ID, "mentions", j)
698		}
699		if err != nil {
700			log.Printf("error saving mentions: %s", err)
701			return err
702		}
703	}
704	return nil
705}
706
707func deleteextras(tx *sql.Tx, honkid int64, everything bool) error {
708	_, err := tx.Stmt(stmtDeleteDonks).Exec(honkid)
709	if err != nil {
710		return err
711	}
712	_, err = tx.Stmt(stmtDeleteOnts).Exec(honkid)
713	if err != nil {
714		return err
715	}
716	if everything {
717		_, err = tx.Stmt(stmtDeleteAllMeta).Exec(honkid)
718	} else {
719		_, err = tx.Stmt(stmtDeleteSomeMeta).Exec(honkid)
720	}
721	if err != nil {
722		return err
723	}
724	return nil
725}
726
727func jsonify(what interface{}) (string, error) {
728	var buf bytes.Buffer
729	e := json.NewEncoder(&buf)
730	e.SetEscapeHTML(false)
731	e.SetIndent("", "")
732	err := e.Encode(what)
733	return buf.String(), err
734}
735
736func unjsonify(s string, dest interface{}) error {
737	d := json.NewDecoder(strings.NewReader(s))
738	err := d.Decode(dest)
739	return err
740}
741
742func cleanupdb(arg string) {
743	db := opendatabase()
744	days, err := strconv.Atoi(arg)
745	var sqlargs []interface{}
746	var where string
747	if err != nil {
748		honker := arg
749		expdate := time.Now().UTC().Add(-3 * 24 * time.Hour).Format(dbtimeformat)
750		where = "dt < ? and honker = ?"
751		sqlargs = append(sqlargs, expdate)
752		sqlargs = append(sqlargs, honker)
753	} else {
754		expdate := time.Now().UTC().Add(-time.Duration(days) * 24 * time.Hour).Format(dbtimeformat)
755		where = "dt < ? and convoy not in (select convoy from honks where flags & 4 or whofore = 2 or whofore = 3)"
756		sqlargs = append(sqlargs, expdate)
757	}
758	doordie(db, "delete from honks where flags & 4 = 0 and whofore = 0 and "+where, sqlargs...)
759	doordie(db, "delete from donks where honkid > 0 and honkid not in (select honkid from honks)")
760	doordie(db, "delete from onts where honkid not in (select honkid from honks)")
761	doordie(db, "delete from honkmeta where honkid not in (select honkid from honks)")
762
763	doordie(db, "delete from filemeta where fileid not in (select fileid from donks)")
764	for _, u := range allusers() {
765		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)
766	}
767
768	filexids := make(map[string]bool)
769	blobdb := openblobdb()
770	rows, err := blobdb.Query("select xid from filedata")
771	if err != nil {
772		log.Fatal(err)
773	}
774	for rows.Next() {
775		var xid string
776		err = rows.Scan(&xid)
777		if err != nil {
778			log.Fatal(err)
779		}
780		filexids[xid] = true
781	}
782	rows.Close()
783	rows, err = db.Query("select xid from filemeta")
784	for rows.Next() {
785		var xid string
786		err = rows.Scan(&xid)
787		if err != nil {
788			log.Fatal(err)
789		}
790		delete(filexids, xid)
791	}
792	rows.Close()
793	tx, err := blobdb.Begin()
794	if err != nil {
795		log.Fatal(err)
796	}
797	for xid, _ := range filexids {
798		_, err = tx.Exec("delete from filedata where xid = ?", xid)
799		if err != nil {
800			log.Fatal(err)
801		}
802	}
803	err = tx.Commit()
804	if err != nil {
805		log.Fatal(err)
806	}
807}
808
809var stmtHonkers, stmtDubbers, stmtNamedDubbers, stmtSaveHonker, stmtUpdateFlavor, stmtUpdateHonker *sql.Stmt
810var stmtAnyXonk, stmtOneXonk, stmtPublicHonks, stmtUserHonks, stmtHonksByCombo, stmtHonksByConvoy *sql.Stmt
811var stmtHonksByOntology, stmtHonksForUser, stmtHonksForMe, stmtSaveDub, stmtHonksByXonker *sql.Stmt
812var stmtHonksByHonker, stmtSaveHonk, stmtUserByName, stmtUserByNumber *sql.Stmt
813var stmtEventHonks, stmtOneBonk, stmtFindZonk, stmtFindXonk, stmtSaveDonk *sql.Stmt
814var stmtFindFile, stmtGetFileData, stmtSaveFileData, stmtSaveFile *sql.Stmt
815var stmtAddDoover, stmtGetDoovers, stmtLoadDoover, stmtZapDoover, stmtOneHonker *sql.Stmt
816var stmtUntagged, stmtDeleteHonk, stmtDeleteDonks, stmtDeleteOnts, stmtSaveZonker *sql.Stmt
817var stmtGetZonkers, stmtRecentHonkers, stmtGetXonker, stmtSaveXonker, stmtDeleteXonker *sql.Stmt
818var stmtAllOnts, stmtSaveOnt, stmtUpdateFlags, stmtClearFlags *sql.Stmt
819var stmtHonksForUserFirstClass *sql.Stmt
820var stmtSaveMeta, stmtDeleteAllMeta, stmtDeleteSomeMeta, stmtUpdateHonk *sql.Stmt
821var stmtHonksISaved, stmtGetFilters, stmtSaveFilter, stmtDeleteFilter *sql.Stmt
822var stmtGetTracks *sql.Stmt
823var stmtSaveChonk, stmtLoadChonks *sql.Stmt
824
825func preparetodie(db *sql.DB, s string) *sql.Stmt {
826	stmt, err := db.Prepare(s)
827	if err != nil {
828		log.Fatalf("error %s: %s", err, s)
829	}
830	return stmt
831}
832
833func prepareStatements(db *sql.DB) {
834	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")
835	stmtSaveHonker = preparetodie(db, "insert into honkers (userid, name, xid, flavor, combos, owner, meta) values (?, ?, ?, ?, ?, ?, ?)")
836	stmtUpdateFlavor = preparetodie(db, "update honkers set flavor = ? where userid = ? and xid = ? and name = ? and flavor = ?")
837	stmtUpdateHonker = preparetodie(db, "update honkers set name = ?, combos = ?, meta = ? where honkerid = ? and userid = ?")
838	stmtOneHonker = preparetodie(db, "select xid from honkers where name = ? and userid = ?")
839	stmtDubbers = preparetodie(db, "select honkerid, userid, name, xid, flavor from honkers where userid = ? and flavor = 'dub'")
840	stmtNamedDubbers = preparetodie(db, "select honkerid, userid, name, xid, flavor from honkers where userid = ? and name = ? and flavor = 'dub'")
841
842	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 "
843	limit := " order by honks.honkid desc limit 250"
844	smalllimit := " order by honks.honkid desc limit ?"
845	butnotthose := " and convoy not in (select name from zonkers where userid = ? and wherefore = 'zonvoy' order by zonkerid desc limit 100)"
846	stmtOneXonk = preparetodie(db, selecthonks+"where honks.userid = ? and xid = ?")
847	stmtAnyXonk = preparetodie(db, selecthonks+"where xid = ? order by honks.honkid asc")
848	stmtOneBonk = preparetodie(db, selecthonks+"where honks.userid = ? and xid = ? and what = 'bonk' and whofore = 2")
849	stmtPublicHonks = preparetodie(db, selecthonks+"where whofore = 2 and dt > ?"+smalllimit)
850	stmtEventHonks = preparetodie(db, selecthonks+"where (whofore = 2 or honks.userid = ?) and what = 'event'"+smalllimit)
851	stmtUserHonks = preparetodie(db, selecthonks+"where honks.honkid > ? and (whofore = 2 or whofore = ?) and username = ? and dt > ?"+smalllimit)
852	myhonkers := " and honker in (select xid from honkers where userid = ? and (flavor = 'sub' or flavor = 'peep' or flavor = 'presub') and combos not like '% - %')"
853	stmtHonksForUser = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and dt > ?"+myhonkers+butnotthose+limit)
854	stmtHonksForUserFirstClass = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and dt > ? and (what <> 'tonk')"+myhonkers+butnotthose+limit)
855	stmtHonksForMe = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and dt > ? and whofore = 1"+butnotthose+limit)
856	stmtHonksISaved = preparetodie(db, selecthonks+"where honks.honkid > ? and honks.userid = ? and flags & 4 order by honks.honkid desc")
857	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)
858	stmtHonksByXonker = preparetodie(db, selecthonks+" where honks.honkid > ? and honks.userid = ? and (honker = ? or oonker = ?)"+butnotthose+limit)
859	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)
860	stmtHonksByConvoy = preparetodie(db, selecthonks+"where honks.honkid > ? and (honks.userid = ? or (? = -1 and whofore = 2)) and convoy = ?"+limit)
861	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)
862
863	stmtSaveMeta = preparetodie(db, "insert into honkmeta (honkid, genus, json) values (?, ?, ?)")
864	stmtDeleteAllMeta = preparetodie(db, "delete from honkmeta where honkid = ?")
865	stmtDeleteSomeMeta = preparetodie(db, "delete from honkmeta where honkid = ? and genus not in ('oldrev')")
866	stmtSaveHonk = preparetodie(db, "insert into honks (userid, what, honker, xid, rid, dt, url, audience, noise, convoy, whofore, format, precis, oonker, flags) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")
867	stmtDeleteHonk = preparetodie(db, "delete from honks where honkid = ?")
868	stmtUpdateHonk = preparetodie(db, "update honks set precis = ?, noise = ?, format = ?, whofore = ?, dt = ? where honkid = ?")
869	stmtSaveOnt = preparetodie(db, "insert into onts (ontology, honkid) values (?, ?)")
870	stmtDeleteOnts = preparetodie(db, "delete from onts where honkid = ?")
871	stmtSaveDonk = preparetodie(db, "insert into donks (honkid, chonkid, fileid) values (?, ?, ?)")
872	stmtDeleteDonks = preparetodie(db, "delete from donks where honkid = ?")
873	stmtSaveFile = preparetodie(db, "insert into filemeta (xid, name, description, url, media, local) values (?, ?, ?, ?, ?, ?)")
874	blobdb := openblobdb()
875	stmtSaveFileData = preparetodie(blobdb, "insert into filedata (xid, media, content) values (?, ?, ?)")
876	stmtGetFileData = preparetodie(blobdb, "select media, content from filedata where xid = ?")
877	stmtFindXonk = preparetodie(db, "select honkid from honks where userid = ? and xid = ?")
878	stmtFindFile = preparetodie(db, "select fileid, xid from filemeta where url = ? and local = 1")
879	stmtUserByName = preparetodie(db, "select userid, username, displayname, about, pubkey, seckey, options from users where username = ? and userid > 0")
880	stmtUserByNumber = preparetodie(db, "select userid, username, displayname, about, pubkey, seckey, options from users where userid = ?")
881	stmtSaveDub = preparetodie(db, "insert into honkers (userid, name, xid, flavor) values (?, ?, ?, ?)")
882	stmtAddDoover = preparetodie(db, "insert into doovers (dt, tries, userid, rcpt, msg) values (?, ?, ?, ?, ?)")
883	stmtGetDoovers = preparetodie(db, "select dooverid, dt from doovers")
884	stmtLoadDoover = preparetodie(db, "select tries, userid, rcpt, msg from doovers where dooverid = ?")
885	stmtZapDoover = preparetodie(db, "delete from doovers where dooverid = ?")
886	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")
887	stmtFindZonk = preparetodie(db, "select zonkerid from zonkers where userid = ? and name = ? and wherefore = 'zonk'")
888	stmtGetZonkers = preparetodie(db, "select zonkerid, name, wherefore from zonkers where userid = ? and wherefore <> 'zonk'")
889	stmtSaveZonker = preparetodie(db, "insert into zonkers (userid, name, wherefore) values (?, ?, ?)")
890	stmtGetXonker = preparetodie(db, "select info from xonkers where name = ? and flavor = ?")
891	stmtSaveXonker = preparetodie(db, "insert into xonkers (name, info, flavor, dt) values (?, ?, ?, ?)")
892	stmtDeleteXonker = preparetodie(db, "delete from xonkers where name = ? and flavor = ? and dt < ?")
893	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")
894	stmtUpdateFlags = preparetodie(db, "update honks set flags = flags | ? where honkid = ?")
895	stmtClearFlags = preparetodie(db, "update honks set flags = flags & ~ ? where honkid = ?")
896	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")
897	stmtGetFilters = preparetodie(db, "select hfcsid, json from hfcs where userid = ?")
898	stmtSaveFilter = preparetodie(db, "insert into hfcs (userid, json) values (?, ?)")
899	stmtDeleteFilter = preparetodie(db, "delete from hfcs where userid = ? and hfcsid = ?")
900	stmtGetTracks = preparetodie(db, "select fetches from tracks where xid = ?")
901	stmtSaveChonk = preparetodie(db, "insert into chonks (userid, xid, who, target, dt, noise, format) values (?, ?, ?, ?, ?, ?, ?)")
902	stmtLoadChonks = preparetodie(db, "select chonkid, userid, xid, who, target, dt, noise, format from chonks where userid = ?")
903}