create the base64 fixer

1 files changed, 46 insertions, 0 deletions

diff --git a/src/main/java/me/xmrvizzy/skyblocker/mixin/YggdrasilServicesKeyInfoMixin.java b/src/main/java/me/xmrvizzy/skyblocker/mixin/YggdrasilServicesKeyInfoMixin.java
new file mode 100644
index 00000000..b283be24
--- /dev/null
+++ b/src/main/java/me/xmrvizzy/skyblocker/mixin/YggdrasilServicesKeyInfoMixin.java
@@ -0,0 +1,46 @@
+package me.xmrvizzy.skyblocker.mixin;
+
+import com.mojang.authlib.yggdrasil.YggdrasilServicesKeyInfo;
+import me.xmrvizzy.skyblocker.utils.Utils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.*;
+
+@Mixin(value = YggdrasilServicesKeyInfo.class, remap = false)
+public class YggdrasilServicesKeyInfoMixin {
+    @Unique
+    private static final Logger LOGGER = LoggerFactory.getLogger(YggdrasilServicesKeyInfo.class);
+    @Unique
+    private static final Map<String, String> REPLACEMENT_HASHMAP = new HashMap<>();
+    @Unique
+    private static final List<Integer> ERROR_HASH_ARRAYLIST = new ArrayList<>();
+
+    @Redirect(method = "validateProperty", at = @At(value = "INVOKE", target = "Ljava/util/Base64$Decoder;decode(Ljava/lang/String;)[B", remap = false), remap = false)
+    private byte[] skyblocker$replaceKnownWrongBase64(Base64.Decoder decoder, String signature) {
+        try {
+            return decoder.decode(signature);
+        } catch (IllegalArgumentException e) {
+            if (Utils.isOnSkyblock()) {
+                if (REPLACEMENT_HASHMAP.containsKey(signature)) {
+                    return decoder.decode(REPLACEMENT_HASHMAP.get(signature));
+                }
+                int signatureHashCode = signature.hashCode();
+                if (!ERROR_HASH_ARRAYLIST.contains(signatureHashCode)) {
+                    ERROR_HASH_ARRAYLIST.add(signatureHashCode);
+                    LOGGER.warn("Failed to decode this base64 string: {}", signature);
+                }
+                LOGGER.warn("Failed to decode the base64 string No.{} again", ERROR_HASH_ARRAYLIST.indexOf(signatureHashCode));
+            }
+            throw e;
+        }
+    }
+
+    static {
+        REPLACEMENT_HASHMAP.put("\"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", "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");
+    }
+}
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