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Merge pull request #1172 from divinerapier/master

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fix: handle errors for ReadUrl
This commit is contained in:
Chris Lu 2019-12-25 19:17:24 -08:00 committed by GitHub
parent 1346437d71 84640d07b7
commit bcc3092255
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 24 additions and 16 deletions
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40
weed/util/http_util.go
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@ -187,9 +187,12 @@ func NormalizeUrl(url string) string {
return "http://" + url
}
func ReadUrl(fileUrl string, offset int64, size int, buf []byte, isReadRange bool) (n int64, e error) {
func ReadUrl(fileUrl string, offset int64, size int, buf []byte, isReadRange bool) (int64, error) {
req, _ := http.NewRequest("GET", fileUrl, nil)
req, err := http.NewRequest("GET", fileUrl, nil)
if err != nil {
return 0, err
}
if isReadRange {
req.Header.Add("Range", fmt.Sprintf("bytes=%d-%d", offset, offset+int64(size)))
} else {
@ -215,28 +218,33 @@ func ReadUrl(fileUrl string, offset int64, size int, buf []byte, isReadRange boo
reader = r.Body
}
var i, m int
var (
i, m int
n int64
)
// refers to https://github.com/golang/go/blob/master/src/bytes/buffer.go#L199
// commit id c170b14c2c1cfb2fd853a37add92a82fd6eb4318
for {
m, err = reader.Read(buf[i:])
if m == 0 {
return
}
i += m
n += int64(m)
if err == io.EOF {
return n, nil
}
if e != nil {
return n, e
if err != nil {
return n, err
}
}
}
func ReadUrlAsStream(fileUrl string, offset int64, size int, fn func(data []byte)) (n int64, e error) {
func ReadUrlAsStream(fileUrl string, offset int64, size int, fn func(data []byte)) (int64, error) {
req, _ := http.NewRequest("GET", fileUrl, nil)
req, err := http.NewRequest("GET", fileUrl, nil)
if err != nil {
return 0, err
}
req.Header.Add("Range", fmt.Sprintf("bytes=%d-%d", offset, offset+int64(size)))
r, err := client.Do(req)
@ -248,21 +256,21 @@ func ReadUrlAsStream(fileUrl string, offset int64, size int, fn func(data []byte
return 0, fmt.Errorf("%s: %s", fileUrl, r.Status)
}
var m int
var (
m int
n int64
)
buf := make([]byte, 64*1024)
for {
m, err = r.Body.Read(buf)
if m == 0 {
return
}
fn(buf[:m])
n += int64(m)
if err == io.EOF {
return n, nil
}
if e != nil {
return n, e
if err != nil {
return n, err
}
}