canceling using works now

2 files changed, 48 insertions, 4 deletions

diff --git a/fetcher.go b/fetcher.go
index bff62bc..24635d1 100644
--- a/fetcher.go
+++ b/fetcher.go
@@ -34,7 +34,9 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"strconv"
 	"strings"
+	"time"
 )
 
 type FetchResult struct {
@@ -114,10 +116,11 @@ func FetchFileCurl(ctx *ImportContext, res *FetchResult, uri *url.URL) (err erro
 		easy.Setopt(curl.OPT_NOPROGRESS, false)
 		easy.Setopt(curl.OPT_PROGRESSFUNCTION, func(dltotal, dlnow, ultotal, ulnow float64, userdata interface{}) bool {
 			if ctx.Cancel != nil && len(ctx.Cancel) > 0 {
+				res.ResponseCode = http.StatusNoContent
+				res.ErrorString = "canceled"
 				return false
 			}
 
-			ctx := userdata.(*ImportContext)
 			if ctx.ProgressCallBack != nil {
 				ctx.ProgressCallBack(1, "downloading", dlnow/dltotal, ctx.ProgressCallBackData)
 			}
@@ -126,7 +129,11 @@ func FetchFileCurl(ctx *ImportContext, res *FetchResult, uri *url.URL) (err erro
 		easy.Setopt(curl.OPT_PROGRESSDATA, ctx)
 
 		if err = easy.Perform(); err != nil {
-			err = fmt.Errorf("curl-fetcher('%s'): %s", ctx.SourceUri, err)
+			if res.ResponseCode == http.StatusNoContent {
+				err = nil
+			} else {
+				err = fmt.Errorf("curl-fetcher('%s'): %s", ctx.SourceUri, err)
+			}
 			return
 		}
 
@@ -159,6 +166,35 @@ func FetchFileLocal(ctx *ImportContext, res *FetchResult, uri *url.URL) (err err
 	return
 }
 
+func FetchFileFake(ctx *ImportContext, res *FetchResult, uri *url.URL) error {
+	rhdl.Printf("Fake fetcher for '%s'", ctx.SourceUri)
+
+	if duration, err := strconv.ParseUint(uri.Host, 10, 32); err != nil {
+		err = nil
+		res.ResponseCode = http.StatusBadRequest
+		res.ErrorString = "invalid duration (must be a positive integer)"
+	} else {
+		for i := uint(0); i < uint(duration); i++ {
+			if ctx.Cancel != nil && len(ctx.Cancel) > 0 {
+				res.ResponseCode = http.StatusNoContent
+				res.ErrorString = "canceled"
+				return nil
+			}
+			if ctx.ProgressCallBack != nil {
+				ctx.ProgressCallBack(1, "faking", float64(i)/float64(duration), ctx.ProgressCallBackData)
+			}
+			time.Sleep(100 * time.Millisecond)
+		}
+		if ctx.ProgressCallBack != nil {
+			ctx.ProgressCallBack(42, "faking", 1.0, ctx.ProgressCallBackData)
+		}
+		ctx.SourceFile = "/nonexistend/fake.mp3"
+		ctx.DeleteSourceFile = false
+		ctx.DeleteSourceDir = false
+	}
+	return nil
+}
+
 type FetchFunc func(*ImportContext, *FetchResult, *url.URL) (err error)
 
 // TODO: implement fetchers for:
@@ -168,6 +204,7 @@ type FetchFunc func(*ImportContext, *FetchResult, *url.URL) (err error)
 var (
 	fetchers = map[string]FetchFunc{
 		"local": FetchFileLocal,
+		"fake":  FetchFileFake,
 	}
 	curl_protos = map[string]bool{
 		"http": false, "https": false,
diff --git a/importer.go b/importer.go
index df491d7..512daf6 100644
--- a/importer.go
+++ b/importer.go
@@ -502,10 +502,11 @@ func import_audio(ctx *ImportContext, res *ImportResult) (err error) {
 		easy.Setopt(curl.OPT_NOPROGRESS, false)
 		easy.Setopt(curl.OPT_PROGRESSFUNCTION, func(dltotal, dlnow, ultotal, ulnow float64, userdata interface{}) bool {
 			if ctx.Cancel != nil && len(ctx.Cancel) > 0 {
+				res.ResponseCode = http.StatusNoContent
+				res.ErrorString = "canceled"
 				return false
 			}
 
-			ctx := userdata.(*ImportContext)
 			if ctx.ProgressCallBack != nil {
 				ctx.ProgressCallBack(2, "importing", ulnow/ultotal, ctx.ProgressCallBackData)
 			}
@@ -514,7 +515,13 @@ func import_audio(ctx *ImportContext, res *ImportResult) (err error) {
 		easy.Setopt(curl.OPT_PROGRESSDATA, ctx)
 
 		if err = easy.Perform(); err != nil {
-			err = fmt.Errorf("importer: %s", err)
+			if res.ResponseCode == http.StatusNoContent {
+				res.Cart = ctx.Cart
+				res.Cut = ctx.Cut
+				err = nil
+			} else {
+				err = fmt.Errorf("importer: %s", err)
+			}
 			return
 		}