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package handlers
import (
"errors"
"net/http"
"net/url"
"gitlab.com/gitlab-org/gitlab-pages/internal/acme"
"gitlab.com/gitlab-org/gitlab-pages/internal/domain"
"gitlab.com/gitlab-org/gitlab-pages/internal/httperrors"
"gitlab.com/gitlab-org/gitlab-pages/internal/logging"
"gitlab.com/gitlab-org/gitlab-pages/internal/request"
"gitlab.com/gitlab-org/gitlab-pages/internal/source"
)
func AcmeMiddleware(handler http.Handler, s source.Source, gitlabURL string) http.Handler {
if gitlabURL == "" {
return handler
}
u, _ := url.Parse(gitlabURL)
fn := serveFromDomain(s)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if acme.ServeAcmeChallenges(w, r, fn, u) {
return
}
handler.ServeHTTP(w, r)
})
}
func serveFromDomain(s source.Source) acme.FallbackStrategy {
return func(w http.ResponseWriter, r *http.Request) bool {
d, err := s.GetDomain(r.Context(), request.GetHostWithoutPort(r))
if err != nil && !errors.Is(err, domain.ErrDomainDoesNotExist) {
logging.LogRequest(r).WithError(err).Error("could not fetch domain information from a source")
httperrors.Serve502(w)
return true
}
return d.ServeFileHTTP(w, r)
}
}
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