30 lines
869 B
Go
30 lines
869 B
Go
package middleware
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import (
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"net/http"
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"time"
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"github.com/multica-ai/multica/server/internal/auth"
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)
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// RefreshCloudFrontCookies is middleware that refreshes CloudFront signed cookies
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// on authenticated requests when the cookie is missing (expired or first request
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// after login). This prevents 403s from the CDN when cookies expire before the
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// user's session does.
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func RefreshCloudFrontCookies(signer *auth.CloudFrontSigner) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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if signer == nil {
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return next
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}
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if _, err := r.Cookie("CloudFront-Policy"); err != nil {
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ttl := auth.AuthTokenTTL()
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for _, cookie := range signer.SignedCookies(time.Now().Add(ttl)) {
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http.SetCookie(w, cookie)
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}
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}
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next.ServeHTTP(w, r)
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})
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}
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}
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