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fac3345668
This commit replaces occurences of http method strings with the corresponding consts from the http package. *Note* UPDATE is not strictly speaking a valid method and as such isn't part of the http package (should be a PUT or PATCH?) Signed-off-by: John McCabe <john@johnmccabe.net>
27 lines
771 B
Go
27 lines
771 B
Go
package handlers
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import "net/http"
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// CORSHandler set custom CORS instructions for the store.
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type CORSHandler struct {
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Upstream *http.Handler
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AllowedHost string
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}
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func (c CORSHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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// https://raw.githubusercontent.com/openfaas/store/master/store.json
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w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
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w.Header().Set("Access-Control-Allow-Methods", http.MethodGet)
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w.Header().Set("Access-Control-Allow-Origin", c.AllowedHost)
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(*c.Upstream).ServeHTTP(w, r)
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}
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// DecorateWithCORS decorate a handler with CORS-injecting middleware
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func DecorateWithCORS(upstream http.Handler, allowedHost string) http.Handler {
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return CORSHandler{
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Upstream: &upstream,
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AllowedHost: allowedHost,
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}
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}
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