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Use a simpler approach append to existing headers

This commit is contained in:
Matthew Wratt 2017-04-10 21:01:08 +12:00
parent efba126367
commit 8dc4608309
1 changed files with 3 additions and 25 deletions
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28
unrouted_handler.go
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@ -132,28 +132,6 @@ func NewUnroutedHandler(config Config) (*UnroutedHandler, error) {
return handler, nil
}
func appendHeader(header http.Header, name, value string) {
valuesMap := make(map[string]struct{})
splitAndAddString := func(value string) {
for _, v := range strings.Split(value, ",") {
valuesMap[strings.TrimSpace(v)] = struct{}{}
}
}
splitAndAddString(header.Get(name))
splitAndAddString(value)
uniqValues := []string{}
for v, _ := range valuesMap {
if v != "" {
uniqValues = append(uniqValues, v)
}
}
header.Set(name, strings.Join(uniqValues, ", "))
}
// Middleware checks various aspects of the request and ensures that it
// conforms with the spec. Also handles method overriding for clients which
// cannot make PATCH AND DELETE requests. If you are using the tusd handlers
@ -179,13 +157,13 @@ func (handler *UnroutedHandler) Middleware(h http.Handler) http.Handler {
if r.Method == "OPTIONS" {
// Preflight request
appendHeader(header, "Access-Control-Allow-Methods", "POST, GET, HEAD, PATCH, DELETE, OPTIONS")
appendHeader(header, "Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Upload-Length, Upload-Offset, Tus-Resumable, Upload-Metadata")
header.Add("Access-Control-Allow-Methods", "POST, GET, HEAD, PATCH, DELETE, OPTIONS")
header.Add("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Upload-Length, Upload-Offset, Tus-Resumable, Upload-Metadata")
header.Set("Access-Control-Max-Age", "86400")
} else {
// Actual request
appendHeader(header, "Access-Control-Expose-Headers", "Upload-Offset, Location, Upload-Length, Tus-Version, Tus-Resumable, Tus-Max-Size, Tus-Extension, Upload-Metadata")
header.Add("Access-Control-Expose-Headers", "Upload-Offset, Location, Upload-Length, Tus-Version, Tus-Resumable, Tus-Max-Size, Tus-Extension, Upload-Metadata")
}
}