27 lines
721 B
Go
27 lines
721 B
Go
package handlers
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import (
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"net/http"
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"os"
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"strings"
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)
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func corsHandler(h http.Handler) http.Handler {
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cors := func(w http.ResponseWriter, r *http.Request) {
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domains := os.Getenv("DOMAINS")
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allowedDomains := strings.Split(domains, ",")
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if origin := r.Header.Get("Origin"); origin != "" {
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for _, s := range allowedDomains {
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if s == origin {
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w.Header().Set("Access-Control-Allow-Origin", origin)
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w.Header().Set("Access-Control-Allow-Headers", r.Header.Get("Access-Control-Request-Headers"))
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w.Header().Set("Access-Control-Allow-Methods", r.Header.Get("Access-Control-Request-Method"))
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}
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}
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}
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if r.Method != "OPTIONS" {
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h.ServeHTTP(w, r)
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}
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}
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return http.HandlerFunc(cors)
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}
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