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package s3
import (
"encoding/xml"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
type xmlErrorResponse struct {
XMLName xml.Name `xml:"Error"`
Code string `xml:"Code"`
Message string `xml:"Message"`
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
defer io.Copy(ioutil.Discard, r.HTTPResponse.Body)
// Bucket exists in a different region, and request needs
// to be made to the correct region.
if r.HTTPResponse.StatusCode == http.StatusMovedPermanently {
r.Error = awserr.NewRequestFailure(
awserr.New("BucketRegionError",
fmt.Sprintf("incorrect region, the bucket is not in '%s' region",
aws.StringValue(r.Config.Region)),
nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
return
}
var errCode, errMsg string
// Attempt to parse error from body if it is known
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
errCode = "SerializationError"
errMsg = "failed to decode S3 XML error response"
} else {
errCode = resp.Code
errMsg = resp.Message
}
// Fallback to status code converted to message if still no error code
if len(errCode) == 0 {
statusText := http.StatusText(r.HTTPResponse.StatusCode)
errCode = strings.Replace(statusText, " ", "", -1)
errMsg = statusText
}
r.Error = awserr.NewRequestFailure(
awserr.New(errCode, errMsg, nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
}
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