minio/cmd/api-headers.go
kannappanr 76ddf4d32f Log x-amz-request-id as log and XML error response (#6173)
Currently, requestid field in logEntry is not populated, as the
requestid field gets set at the very end.
It is now set before regular handler functions. This is also
useful in setting it as part of the XML error response.

Travis build for ppc64le has been quite inconsistent and stays queued
for most of the time. Removing this build as part of Travis.yml for
the time being.
2018-07-20 18:46:32 -07:00

106 lines
2.9 KiB
Go

/*
* Minio Cloud Storage, (C) 2015, 2016, 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bytes"
"encoding/json"
"encoding/xml"
"fmt"
"net/http"
"strconv"
"time"
)
// Returns a hexadecimal representation of time at the
// time response is sent to the client.
func mustGetRequestID(t time.Time) string {
return fmt.Sprintf("%X", t.UnixNano())
}
// Write http common headers
func setCommonHeaders(w http.ResponseWriter) {
w.Header().Set("Server", globalServerUserAgent)
// Set `x-amz-bucket-region` only if region is set on the server
// by default minio uses an empty region.
if region := globalServerConfig.GetRegion(); region != "" {
w.Header().Set("X-Amz-Bucket-Region", region)
}
w.Header().Set("Accept-Ranges", "bytes")
}
// Encodes the response headers into XML format.
func encodeResponse(response interface{}) []byte {
var bytesBuffer bytes.Buffer
bytesBuffer.WriteString(xml.Header)
e := xml.NewEncoder(&bytesBuffer)
e.Encode(response)
return bytesBuffer.Bytes()
}
// Encodes the response headers into JSON format.
func encodeResponseJSON(response interface{}) []byte {
var bytesBuffer bytes.Buffer
e := json.NewEncoder(&bytesBuffer)
e.Encode(response)
return bytesBuffer.Bytes()
}
// Write object header
func setObjectHeaders(w http.ResponseWriter, objInfo ObjectInfo, contentRange *httpRange) {
// set common headers
setCommonHeaders(w)
// Set content length.
w.Header().Set("Content-Length", strconv.FormatInt(objInfo.Size, 10))
// Set last modified time.
lastModified := objInfo.ModTime.UTC().Format(http.TimeFormat)
w.Header().Set("Last-Modified", lastModified)
// Set Etag if available.
if objInfo.ETag != "" {
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
}
if objInfo.ContentType != "" {
w.Header().Set("Content-Type", objInfo.ContentType)
}
if objInfo.ContentEncoding != "" {
w.Header().Set("Content-Encoding", objInfo.ContentEncoding)
}
// Set all other user defined metadata.
for k, v := range objInfo.UserDefined {
if hasPrefix(k, ReservedMetadataPrefix) {
// Do not need to send any internal metadata
// values to client.
continue
}
w.Header().Set(k, v)
}
// for providing ranged content
if contentRange != nil && contentRange.offsetBegin > -1 {
// Override content-length
w.Header().Set("Content-Length", strconv.FormatInt(contentRange.getLength(), 10))
w.Header().Set("Content-Range", contentRange.String())
w.WriteHeader(http.StatusPartialContent)
}
}