com.quorum.tessera.server.jaxrs.OriginMatchUtil Maven / Gradle / Ivy

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package com.quorum.tessera.server.jaxrs;

import java.util.List;
import java.util.Objects;
import java.util.function.Predicate;
import java.util.stream.Collectors;

public class OriginMatchUtil {

    private final List tokens;

    private final Predicate wildcardMatch = s -> s.equals("*");

    public OriginMatchUtil(List tokens) {
        this.tokens = tokens.stream()
            .map(String::toLowerCase)
            .map(s -> ("\\Q" + s + "\\E"))
            .map(s -> s.replace("*", "\\E.*\\Q"))
            .collect(Collectors.toList());
    }

    public boolean matches(String origin) {
        
        if(Objects.isNull(origin) || Objects.equals("", origin)) {
            return false;
        }

        Predicate subdomainMatch = s -> origin.toLowerCase().matches(s);
        Predicate matchingCritera = wildcardMatch.or(subdomainMatch);

        return tokens.stream().anyMatch(matchingCritera);
    }

}