@@ -54,3 +54,9 @@
 Refer also to the docs directory, in particular manual.txt.
 
 Busy honk instances may use megabytes of memory.
+
+-- upgrade
+
+./honk upgrade
+
+./honk

@@ -21,6 +21,11 @@ "math/rand"
 	"time"
 )
 
+type Doover struct {
+	ID   int64
+	When time.Time
+}
+
 func sayitagain(goarounds int, username string, rcpt string, msg []byte) {
 	var drift time.Duration
 	switch goarounds {
@@ -36,9 +41,13 @@ default:
 		log.Printf("he's dead jim: %s", rcpt)
 		return
 	}
-	drift += time.Duration(rand.Int63n(int64(drift / 16)))
+	drift += time.Duration(rand.Int63n(int64(drift / 10)))
 	when := time.Now().UTC().Add(drift)
-	log.Print(when.Format(dbtimeformat), goarounds, username, rcpt, msg)
+	stmtAddDoover.Exec(when.Format(dbtimeformat), goarounds, username, rcpt, msg)
+	select {
+	case pokechan <- 0:
+	default:
+	}
 }
 
 func deliverate(goarounds int, username string, rcpt string, msg []byte) {
@@ -53,5 +62,56 @@ err = PostMsg(keyname, key, inbox, msg)
 	if err != nil {
 		log.Printf("failed to post json to %s: %s", inbox, err)
 		sayitagain(goarounds+1, username, rcpt, msg)
+		return
+	}
+}
+
+var pokechan = make(chan int)
+
+func redeliverator() {
+	sleeper := time.NewTimer(0)
+	for {
+		select {
+		case <-pokechan:
+			if !sleeper.Stop() {
+				<-sleeper.C
+			}
+			time.Sleep(1 * time.Minute)
+		case <-sleeper.C:
+		}
+
+		rows, err := stmtGetDoovers.Query()
+		if err != nil {
+			log.Printf("wat?")
+			time.Sleep(1 * time.Minute)
+			continue
+		}
+		var doovers []Doover
+		for rows.Next() {
+			var d Doover
+			var dt string
+			rows.Scan(&d.ID, &dt)
+			d.When, _ = time.Parse(dbtimeformat, dt)
+			doovers = append(doovers, d)
+		}
+		rows.Close()
+		now := time.Now().UTC()
+		nexttime := now.Add(24 * time.Hour)
+		for _, d := range doovers {
+			if d.When.Before(now) {
+				var goarounds int
+				var username, rcpt string
+				var msg []byte
+				row := stmtLoadDoover.QueryRow(d.ID)
+				row.Scan(&goarounds, &username, &rcpt, &msg)
+				stmtZapDoover.Exec(d.ID)
+				log.Printf("redeliverating %s try %d", rcpt, goarounds)
+				deliverate(goarounds, username, rcpt, msg)
+			} else if d.When.Before(nexttime) {
+				nexttime = d.When
+			}
+		}
+		dur := nexttime.Sub(now).Round(time.Second) + 1*time.Minute
+		sleeper.Reset(dur)
 	}
 }

@@ -914,6 +914,8 @@ listener, err := openListener()
 	if err != nil {
 		log.Fatal(err)
 	}
+	go redeliverator()
+
 	debug := false
 	getconfig("debug", &debug)
 	readviews = ParseTemplates(debug,
@@ -975,6 +977,7 @@ var stmtHonkers, stmtDubbers, stmtOneXonk, stmtHonks, stmtUserHonks *sql.Stmt
 var stmtHonksForUser, stmtDeleteHonk, stmtSaveDub *sql.Stmt
 var stmtHonksByHonker, stmtSaveHonk, stmtFileData, stmtWhatAbout *sql.Stmt
 var stmtFindXonk, stmtSaveDonk, stmtFindFile, stmtSaveFile *sql.Stmt
+var stmtAddDoover, stmtGetDoovers, stmtLoadDoover, stmtZapDoover *sql.Stmt
 
 func preparetodie(db *sql.DB, s string) *sql.Stmt {
 	stmt, err := db.Prepare(s)
@@ -1001,6 +1004,10 @@ stmtFindFile = preparetodie(db, "select fileid from files where url = ?")
 	stmtSaveFile = preparetodie(db, "insert into files (xid, name, url, media, content) values (?, ?, ?, ?, ?)")
 	stmtWhatAbout = preparetodie(db, "select userid, username, displayname, about, pubkey from users where username = ?")
 	stmtSaveDub = preparetodie(db, "insert into honkers (userid, name, xid, flavor) values (?, ?, ?, ?)")
+	stmtAddDoover = preparetodie(db, "insert into doovers (dt, tries, username, rcpt, msg) values (?, ?, ?, ?, ?)")
+	stmtGetDoovers = preparetodie(db, "select dooverid, dt from doovers")
+	stmtLoadDoover = preparetodie(db, "select tries, username, rcpt, msg from doovers where dooverid = ?")
+	stmtZapDoover = preparetodie(db, "delete from doovers where dooverid = ?")
 }
 
 func ElaborateUnitTests() {

@@ -3,6 +3,7 @@ CREATE TABLE honks (honkid integer primary key, userid integer, what text, honker text, xid text, rid text, dt text, url text, audience text, noise text);
 CREATE TABLE donks (honkid integer, fileid integer);
 CREATE TABLE files(fileid integer primary key, xid text, name text, url text, media text, content blob);
 CREATE TABLE honkers (honkerid integer primary key, userid integer, name text, xid text, flavor text, pubkey text);
+create table doovers(dooverid integer primary key, dt text, tries integer, username text, rcpt text, msg blob);
 
 create index idx_honksxid on honks(xid);
 create index idx_honkshonker on honks(honker);

@@ -16,24 +16,32 @@
 package main
 
 import (
+	"database/sql"
 	"log"
 	"os"
 )
 
+func doordie(db *sql.DB, s string) {
+	_, err := db.Exec(s)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
 func upgradedb() {
 	db := opendatabase()
 	dbversion := 0
 	getconfig("dbversion", &dbversion)
 
-	var err error
 	switch dbversion {
 	case 0:
-		_, err = db.Exec("insert into config (key, value) values ('dbversion', 1)")
-		if err != nil {
-			log.Fatal(err)
-		}
+		doordie(db, "insert into config (key, value) values ('dbversion', 1)")
 		fallthrough
 	case 1:
+		doordie(db, "create table doovers(dooverid integer primary key, dt text, tries integer, username text, rcpt text, msg blob)")
+		doordie(db, "update config set value = 2 where key = 'dbversion'")
+		fallthrough
+	case 2:
 	default:
 		log.Fatalf("can't upgrade unknown version %d", dbversion)
 	}

@@ -70,7 +70,7 @@
 var alreadyopendb *sql.DB
 var dbname = "honk.db"
 var stmtConfig *sql.Stmt
-var myVersion = 1
+var myVersion = 2
 
 func initdb() {
 	schema, err := ioutil.ReadFile("schema.sql")