From aca21335f9ec65f7d3a19a7a0546a897ab84a488 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Thu, 22 Sep 2016 19:00:12 +0200
Subject: strip C0 control characters from old DB


diff --git a/src/pool-import/main.go b/src/pool-import/main.go
index 7de3b55..85dd811 100644
--- a/src/pool-import/main.go
+++ b/src/pool-import/main.go
@@ -28,8 +28,10 @@ import (
 	"os"
 	"os/signal"
 	"sort"
+	"strings"
 	"syscall"
 	"time"
+	"unicode"
 
 	"code.helsinki.at/rhrd-go/rddb"
 	"code.helsinki.at/rhrd-go/rhimport"
@@ -46,6 +48,16 @@ func Done(res rhimport.Result, userdata interface{}) bool {
 	return true
 }
 
+func stripControlCodes(in string) string {
+	isC0 := func(r rune) rune {
+		if uint32(r) <= unicode.MaxLatin1 && uint8(r) <= 0x1F {
+			return -1
+		}
+		return r
+	}
+	return strings.Map(isC0, in)
+}
+
 func HandleCart(cart uint, cut uint, artist, album, title, dstgroup string, sessions *rhimport.SessionStore, conf *rhimport.Config, stdlog, dbglog *log.Logger, c <-chan os.Signal) int {
 	filename := fmt.Sprintf("%06d_%03d.wav", cart, cut)
 
@@ -58,9 +70,9 @@ func HandleCart(cart uint, cut uint, artist, album, title, dstgroup string, sess
 	ctx.GroupName = dstgroup
 	ctx.SourceUri = "local:///" + filename
 	ctx.FetchConverter = "ffmpeg-bs1770"
-	ctx.ExtraMetaData["ARTIST"] = artist
-	ctx.ExtraMetaData["ALBUM"] = album
-	ctx.ExtraMetaData["TITLE"] = title
+	ctx.ExtraMetaData["ARTIST"] = stripControlCodes(artist)
+	ctx.ExtraMetaData["ALBUM"] = stripControlCodes(album)
+	ctx.ExtraMetaData["TITLE"] = stripControlCodes(title)
 
 	_, s, code, errstring := sessions.New(ctx, "")
 	if code != http.StatusOK {
-- 
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