org.apache.james.jmap.utils.HeadersAuthenticationExtractor Maven / Gradle / Ivy

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package org.apache.james.jmap.utils;

import java.util.Collections;
import java.util.Enumeration;
import java.util.stream.Stream;

import javax.servlet.http.HttpServletRequest;

import com.google.common.base.Preconditions;

public class HeadersAuthenticationExtractor {

    private static final String AUTHORIZATION_HEADERS = "Authorization";

    public Stream authHeaders(HttpServletRequest httpRequest) {
        Preconditions.checkArgument(httpRequest != null, "'httpRequest' is mandatory");
        Enumeration authHeaders = httpRequest.getHeaders(AUTHORIZATION_HEADERS);

        return authHeaders != null ? Collections.list(authHeaders).stream() : Stream.of();
    }

}