grafana/pkg/middleware/util.go
Marcus Efraimsson 4ff613a432
Backend Plugins: Support handling of streaming resource response (#22580)
Use v0.19.0 of SDK.
Support handling of streaming resource response.
Disable gzip/compression middleware for resources 
to allow chunked/streaming response to clients the gzip
middleware had to be disabled since it buffers the full
response before sending it to the client.

Closes #22569

Co-Authored-By: Arve Knudsen <arve.knudsen@gmail.com>
2020-03-06 01:44:07 +07:00

42 lines
926 B
Go

package middleware
import (
"strings"
"github.com/go-macaron/gzip"
"github.com/grafana/grafana/pkg/infra/log"
"gopkg.in/macaron.v1"
)
const resourcesPath = "/resources"
func Gziper() macaron.Handler {
gziperLogger := log.New("gziper")
gziper := gzip.Gziper()
return func(ctx *macaron.Context) {
requestPath := ctx.Req.URL.RequestURI()
// ignore datasource proxy requests
if strings.HasPrefix(requestPath, "/api/datasources/proxy") {
return
}
if strings.HasPrefix(requestPath, "/api/plugin-proxy/") {
return
}
if strings.HasPrefix(requestPath, "/metrics") {
return
}
// ignore resources
if (strings.HasPrefix(requestPath, "/api/datasources/") || strings.HasPrefix(requestPath, "/api/plugins/")) && strings.Contains(requestPath, resourcesPath) {
return
}
if _, err := ctx.Invoke(gziper); err != nil {
gziperLogger.Error("Invoking gzip handler failed", "err", err)
}
}
}