将 authlib-injector 嵌入启动器 (#4246)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

HMCLCore/src/main/java/org/jackhuang/hmcl/auth/authlibinjector/AuthlibInjectorExtractor.java

@@ -0,0 +1,78 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2025 huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.auth.authlibinjector;
+
+import org.jackhuang.hmcl.util.io.FileUtils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Optional;
+
+import static org.jackhuang.hmcl.util.logging.Logger.LOG;
+
+/**
+ * @author Glavo
+ */
+public final class AuthlibInjectorExtractor implements AuthlibInjectorArtifactProvider {
+    private final URL source;
+    private final Path artifactLocation;
+
+    public AuthlibInjectorExtractor(URL source, Path artifactLocation) {
+        if (source == null)
+            throw new IllegalArgumentException("Missing authlib injector");
+        this.source = source;
+        this.artifactLocation = artifactLocation;
+    }
+
+    @Override
+    public AuthlibInjectorArtifactInfo getArtifactInfo() throws IOException {
+        Optional<AuthlibInjectorArtifactInfo> cached = getArtifactInfoImmediately();
+        if (cached.isPresent())
+            return cached.get();
+
+        synchronized (this) {
+            cached = getArtifactInfoImmediately();
+            if (cached.isPresent())
+                return cached.get();
+
+            LOG.info("No local authlib-injector found, extracting");
+            Files.createDirectories(artifactLocation.getParent());
+            try (InputStream inputStream = source.openStream()) {
+                FileUtils.saveSafely(artifactLocation, inputStream::transferTo);
+            }
+            return getArtifactInfoImmediately().orElseThrow(() ->
+                    new IOException("Failed to extract authlib-injector artifact"));
+        }
+    }
+
+    @Override
+    public Optional<AuthlibInjectorArtifactInfo> getArtifactInfoImmediately() {
+        if (!Files.isRegularFile(artifactLocation))
+            return Optional.empty();
+
+        try {
+            return Optional.of(AuthlibInjectorArtifactInfo.from(artifactLocation));
+        } catch (IOException e) {
+            LOG.warning("Bad authlib-injector artifact", e);
+            return Optional.empty();
+        }
+    }
+}