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Add text/event-stream for long running http connections (#7909)

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When MinIO is behind a proxy, proxies end up killing
clients when no data is seen on the connection, adding
the right content-type ensures that proxies do not come
in the way.
This commit is contained in:
Harshavardhana 2019-07-11 13:19:25 -07:00 committed by GitHub
parent 5a52bc7ff6
commit 5c0acbc6fc
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 9 additions and 3 deletions
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7
cmd/admin-handlers.go
View File

@ -681,12 +681,12 @@ func (a adminAPIHandlers) HealHandler(w http.ResponseWriter, r *http.Request) {
// Start writing response to client
started = true
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, string(mimeJSON))
w.Header().Set(xhttp.ContentType, "text/event-stream")
// Set 200 OK status
w.WriteHeader(200)
}
// Send whitespace and keep connection open
w.Write([]byte("\n\r"))
w.Write([]byte(" "))
w.(http.Flusher).Flush()
case hr := <-respCh:
switch hr.apiErr {
@ -1486,7 +1486,8 @@ func (a adminAPIHandlers) TraceHandler(w http.ResponseWriter, r *http.Request) {
// Avoid reusing tcp connection if read timeout is hit
// This is needed to make r.Context().Done() work as
// expected in case of read timeout
w.Header().Add(xhttp.Connection, "close")
w.Header().Set(xhttp.Connection, "close")
w.Header().Set(xhttp.ContentType, "text/event-stream")
doneCh := make(chan struct{})
defer close(doneCh)

3
cmd/bucket-notification-handlers.go
View File

@ -23,6 +23,7 @@ import (
"net/http"
"github.com/gorilla/mux"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/event"
"github.com/minio/minio/pkg/event/target"
@ -246,6 +247,8 @@ func (api objectAPIHandlers) ListenBucketNotificationHandler(w http.ResponseWrit
return
}
w.Header().Set(xhttp.ContentType, "text/event-stream")
target, err := target.NewHTTPClientTarget(*host, w)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))

1
cmd/object-handlers.go
View File

@ -2280,6 +2280,7 @@ func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWrite
w.Write(encodedErrorResponse)
w.(http.Flusher).Flush()
}
w.Header().Set(xhttp.ContentType, "text/event-stream")
w = &whiteSpaceWriter{ResponseWriter: w, Flusher: w.(http.Flusher)}
completeDoneCh := sendWhiteSpace(ctx, w)
objInfo, err := completeMultiPartUpload(ctx, bucket, object, uploadID, completeParts, opts)

1
cmd/storage-rest-server.go
View File

@ -540,6 +540,7 @@ func (s *storageRESTServer) VerifyFile(w http.ResponseWriter, r *http.Request) {
return
}
algo := BitrotAlgorithmFromString(algoStr)
w.Header().Set(xhttp.ContentType, "text/event-stream")
doneCh := sendWhiteSpaceVerifyFile(w)
err = s.storage.VerifyFile(volume, filePath, algo, hash, int64(shardSize))
<-doneCh