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Avoid unnecessary allocations for XML parsing (#9017)

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This commit is contained in:
Harshavardhana
2020-02-23 09:06:46 +05:30
committed by GitHub
parent b2db1e96e2
commit 51a9d1bdb7
2 changed files with 17 additions and 16 deletions
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17
cmd/object-handlers.go
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@@ -24,7 +24,6 @@ import (
"encoding/hex"
"encoding/xml"
"io"
goioutil "io/ioutil"
"net/http"
"net/url"
"sort"
@@ -2331,12 +2330,19 @@ func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWrite
return
}
// Content-Length is required and should be non-zero
if r.ContentLength <= 0 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
return
}
// Reject retention or governance headers if set, CompleteMultipartUpload spec
// does not use these headers, and should not be passed down to checkPutObjectLockAllowed
if objectlock.IsObjectLockRequested(r.Header) || objectlock.IsObjectLockGovernanceBypassSet(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL, guessIsBrowserReq(r))
return
}
// Enforce object lock governance in case a competing upload finalized first.
retPerms := isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectRetentionAction)
holdPerms := isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectLegalHoldAction)
@@ -2353,14 +2359,9 @@ func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWrite
return
}
completeMultipartBytes, err := goioutil.ReadAll(r.Body)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
complMultipartUpload := &CompleteMultipartUpload{}
if err = xml.Unmarshal(completeMultipartBytes, complMultipartUpload); err != nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedXML), r.URL, guessIsBrowserReq(r))
if err = xmlDecoder(r.Body, complMultipartUpload, r.ContentLength); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if len(complMultipartUpload.Parts) == 0 {