56 lines
2.2 KiB
Java
56 lines
2.2 KiB
Java
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package net.minecraft.util;
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import com.mojang.authlib.yggdrasil.ServicesKeyInfo;
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import com.mojang.authlib.yggdrasil.ServicesKeySet;
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import com.mojang.authlib.yggdrasil.ServicesKeyType;
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import com.mojang.logging.LogUtils;
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import java.security.PublicKey;
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import java.security.Signature;
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import java.security.SignatureException;
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import java.util.Collection;
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import javax.annotation.Nullable;
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import org.slf4j.Logger;
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public interface SignatureValidator {
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SignatureValidator NO_VALIDATION = (p_216352_, p_216353_) -> true;
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Logger LOGGER = LogUtils.getLogger();
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boolean validate(SignatureUpdater p_216379_, byte[] p_216380_);
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default boolean validate(byte[] p_216376_, byte[] p_216377_) {
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return this.validate(p_216374_ -> p_216374_.update(p_216376_), p_216377_);
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}
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private static boolean verifySignature(SignatureUpdater p_216355_, byte[] p_216356_, Signature p_216357_) throws SignatureException {
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p_216355_.update(p_216357_::update);
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return p_216357_.verify(p_216356_);
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}
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static SignatureValidator from(PublicKey p_216370_, String p_216371_) {
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return (p_216367_, p_216368_) -> {
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try {
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Signature signature = Signature.getInstance(p_216371_);
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signature.initVerify(p_216370_);
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return verifySignature(p_216367_, p_216368_, signature);
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} catch (Exception exception) {
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LOGGER.error("Failed to verify signature", (Throwable)exception);
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return false;
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}
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};
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}
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@Nullable
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static SignatureValidator from(ServicesKeySet p_285388_, ServicesKeyType p_285383_) {
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Collection<ServicesKeyInfo> collection = p_285388_.keys(p_285383_);
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return collection.isEmpty() ? null : (p_284690_, p_284691_) -> collection.stream().anyMatch(p_216361_ -> {
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Signature signature = p_216361_.signature();
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try {
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return verifySignature(p_284690_, p_284691_, signature);
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} catch (SignatureException signatureexception) {
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LOGGER.error("Failed to verify Services signature", (Throwable)signatureexception);
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return false;
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}
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});
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}
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}
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