Query cursemeta for removed mods

HMCLCore/src/main/java/org/jackhuang/hmcl/mod/CurseCompletionTask.java

@@ -17,6 +17,7 @@
  */
 package org.jackhuang.hmcl.mod;
 
+import com.google.gson.JsonParseException;
 import org.jackhuang.hmcl.download.DefaultDependencyManager;
 import org.jackhuang.hmcl.game.GameRepository;
 import org.jackhuang.hmcl.task.FileDownloadTask;
@@ -32,7 +33,6 @@ import java.io.IOException;
 import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.concurrent.ConcurrentSkipListSet;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.logging.Level;
@@ -117,8 +117,16 @@ public final class CurseCompletionTask extends Task {
                                 try {
                                     return file.withFileName(NetworkUtils.detectFileName(file.getUrl()));
                                 } catch (FileNotFoundException e) {
+                                    try {
+                                        String result = NetworkUtils.doGet(NetworkUtils.toURL(String.format("https://cursemeta.dries007.net/%d/%d.json", file.getProjectID(), file.getFileID())));
+                                        CurseMetaMod mod = JsonUtils.fromNonNullJson(result, CurseMetaMod.class);
+                                        return file.withFileName(mod.getFileNameOnDisk()).withURL(mod.getDownloadURL());
+                                    } catch (IOException | JsonParseException e2) {
+                                        Logging.LOG.log(Level.WARNING, "Could not query cursemeta for deleted mods: " + file.getUrl(), e2);
                                         notFound.set(true);
                                         return file;
+                                    }
+
                                 } catch (IOException ioe) {
                                     Logging.LOG.log(Level.WARNING, "Unable to fetch the file name of URL: " + file.getUrl(), ioe);
                                     flag.set(false);

HMCLCore/src/main/java/org/jackhuang/hmcl/mod/CurseManifestFile.java

@@ -42,17 +42,21 @@ public final class CurseManifestFile implements Validation {
     @SerializedName("fileName")
     private final String fileName;
 
+    @SerializedName("url")
+    private final String url;
+    
     @SerializedName("required")
     private final boolean required;
 
     public CurseManifestFile() {
-        this(0, 0, "", true);
+        this(0, 0, null, null, true);
     }
 
-    public CurseManifestFile(int projectID, int fileID, String fileName, boolean required) {
+    public CurseManifestFile(int projectID, int fileID, String fileName, String url, boolean required) {
         this.projectID = projectID;
         this.fileID = fileID;
         this.fileName = fileName;
+        this.url = url;
         this.required = required;
     }
 
@@ -79,11 +83,16 @@ public final class CurseManifestFile implements Validation {
     }
 
     public URL getUrl() {
-        return NetworkUtils.toURL("https://minecraft.curseforge.com/projects/" + projectID + "/files/" + fileID + "/download");
+        return url == null ? NetworkUtils.toURL("https://minecraft.curseforge.com/projects/" + projectID + "/files/" + fileID + "/download")
+                : NetworkUtils.toURL(url);
     }
 
     public CurseManifestFile withFileName(String fileName) {
-        return new CurseManifestFile(projectID, fileID, fileName, required);
+        return new CurseManifestFile(projectID, fileID, fileName, url, required);
+    }
+
+    public CurseManifestFile withURL(String url) {
+        return new CurseManifestFile(projectID, fileID, fileName, url, required);
     }
 
     @Override

HMCLCore/src/main/java/org/jackhuang/hmcl/mod/CurseMetaMod.java

@@ -0,0 +1,63 @@
+/*
+ * Hello Minecraft! Launcher.
+ * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ *
+ * 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 {http://www.gnu.org/licenses/}.
+ */
+package org.jackhuang.hmcl.mod;
+
+import com.google.gson.annotations.SerializedName;
+import org.jackhuang.hmcl.util.Immutable;
+
+@Immutable
+public final class CurseMetaMod {
+    @SerializedName("Id")
+    private final int id;
+
+    @SerializedName("FileName")
+    private final String fileName;
+
+    @SerializedName("FileNameOnDisk")
+    private final String fileNameOnDisk;
+
+    @SerializedName("DownloadURL")
+    private final String downloadURL;
+
+    public CurseMetaMod() {
+        this(0, "", "", "");
+    }
+
+    public CurseMetaMod(int id, String fileName, String fileNameOnDisk, String downloadURL) {
+        this.id = id;
+        this.fileName = fileName;
+        this.fileNameOnDisk = fileNameOnDisk;
+        this.downloadURL = downloadURL;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+
+    public String getFileNameOnDisk() {
+        return fileNameOnDisk;
+    }
+
+    public String getDownloadURL() {
+        return downloadURL;
+    }
+}