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- using GCMM.Properties;
- using Newtonsoft.Json;
- using System;
- using System.Collections.Generic;
- using System.IO;
- using System.IO.Compression;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- using System.Windows.Forms;
-
- namespace GCMM
- {
- partial class MainForm
- {
- public async Task InstallMod(ModInfo mod)
- {
- if (mod.DownloadURL == null) return;
- if (CheckNoExe())
- return;
- if (mod.Name != "GamecraftModdingAPI")
- await UpdateAPI();
- var tmp = Directory.CreateDirectory("temp");
- var plugins = Directory.CreateDirectory(GamePath(@"\Plugins"));
- string tmppath = tmp.FullName + Path.DirectorySeparatorChar + mod.Name;
- using (var client = GetClient())
- {
- await client.DownloadFileTaskAsync(mod.DownloadURL, tmppath);
- string disposition = client.ResponseHeaders["Content-Disposition"];
- string filename = disposition.Substring(disposition.IndexOf("filename=") + 10).Replace("\"", "");
- if (filename.EndsWith(".dll"))
- {
- string name = plugins.FullName + Path.DirectorySeparatorChar + mod.Name + ".dll";
- if (File.Exists(name))
- File.Delete(name);
- File.Move(tmppath, name);
- }
- else if (filename.EndsWith(".zip"))
- {
- bool pluginOnly = true;
- using (var archive = ZipFile.OpenRead(tmppath))
- {
- bool modFound = false;
- foreach (var entry in archive.Entries)
- {
- if (entry.FullName == "Plugins/")
- pluginOnly = false;
- if (entry.FullName == "Plugins/" + mod.Name + ".dll")
- {
- modFound = true;
- pluginOnly = false;
- }
- else if (pluginOnly && entry.FullName == mod.Name + ".dll")
- modFound = true;
- if (!pluginOnly && modFound) break;
- }
- if (!modFound)
- if (MessageBox.Show("The mod was not found in the downloaded archive. It likely means it's using a different name for the dll file. The mod manager will not be able to track this mod if you continue. Do you want to continue?", "Mod not found in archive", MessageBoxButtons.YesNo) == DialogResult.No)
- return;
- ExtractMod(archive, pluginOnly ? plugins.FullName : Settings.Default.GamePath, mod);
- }
- File.Delete(tmppath);
- }
- else
- {
- MessageBox.Show("Don't know how to install file: " + filename + "\nThe file remains in the temp folder near the mod manager");
- return;
- }
- GetInstalledMods();
- }
- }
-
- public void ExtractMod(ZipArchive archive, string destinationDirectoryName, ModInfo mod)
- {
- LoadFileList(mod);
- DirectoryInfo di = Directory.CreateDirectory(destinationDirectoryName);
- string destinationDirectoryFullPath = di.FullName;
- bool? skipExisting = null;
-
- foreach (ZipArchiveEntry file in archive.Entries)
- {
- string completeFileName = Path.GetFullPath(Path.Combine(destinationDirectoryFullPath, file.FullName));
-
- if (!completeFileName.StartsWith(destinationDirectoryFullPath, StringComparison.OrdinalIgnoreCase))
- {
- throw new IOException("Trying to extract file outside of destination directory. See this link for more info: https://snyk.io/research/zip-slip-vulnerability");
- }
-
- Directory.CreateDirectory(Path.GetDirectoryName(completeFileName));
- if (file.Name == "")
- {
- continue;
- }
-
- if ((mod.Version == null || mod.ModFiles.Count != 0)
- && File.Exists(completeFileName)
- && !mod.ModFiles.Contains(completeFileName)
- && file.FullName != "Plugins/" + mod.Name + ".dll")
- {
- if (!skipExisting.HasValue)
- {
- var mbox = new CustomMessageBox("The mod zip contains a file that exists as part of the game. Do you want to skip this file?\n" + file.FullName + "\nOnly choose No if it's part of a previous installation of the mod.", "File is part of the game");
- var result = mbox.ShowDialog(this);
- if (mbox.ApplyToAll)
- skipExisting = result == DialogResult.Yes;
- if (result == DialogResult.Yes)
- continue;
- }
- else if (skipExisting.Value)
- continue;
- }
-
- mod.ModFiles.Add(completeFileName);
- file.ExtractToFile(completeFileName, true);
- }
- SaveFileList(mod);
- }
-
- public void SaveFileList(ModInfo mod)
- {
- if (mod.ModFiles != null)
- File.WriteAllText(mod.Name + ".json", JsonConvert.SerializeObject(mod.ModFiles));
- }
-
- public void LoadFileList(ModInfo mod)
- {
- if (File.Exists(mod.Name + ".json"))
- mod.ModFiles = JsonConvert.DeserializeObject<HashSet<string>>(File.ReadAllText(mod.Name + ".json"));
- else
- mod.ModFiles = new HashSet<string>();
- }
-
- public void UninstallMod(ModInfo mod)
- {
- try
- {
- LoadFileList(mod);
- if (mod.ModFiles.Count == 0)
- File.Delete(GamePath(@"\Plugins\" + mod.Name + ".dll"));
- else
- {
- foreach (string file in mod.ModFiles)
- {
- if (!File.Exists(file)) continue;
- File.Delete(file);
- var parent = Directory.GetParent(file);
- if (!parent.EnumerateFileSystemInfos().Any())
- parent.Delete();
- }
- }
- File.Delete(mod.Name + ".json");
- mod.Version = null;
- if (mod.Author != null)
- AddUpdateModInList(mod);
- else
- {
- mods.Remove(mod.Name);
- modlist.Items[mod.Name].Remove();
- }
- }
- catch (Exception e) when (e is UnauthorizedAccessException || e is IOException)
- {
- MessageBox.Show("Could not remove mod files! Make sure the game isn't running.\n" + e.Message);
- }
- }
-
- public async Task UpdateAPI()
- {
- if (!mods.ContainsKey("GamecraftModdingAPI"))
- return;
- var gcmapi = mods["GamecraftModdingAPI"];
- if (!gcmapi.Installed || gcmapi.Updatable)
- {
- if (MessageBox.Show(gcmapi.Installed ?
- "GamecraftModdingAPI will be updated as there's a new version available. It's needed for most mods to function."
- : "GamecraftModdingAPI will be installed as most mods need it to work. You can uninstall it if you're sure you don't need it.", "API needed",
- MessageBoxButtons.OKCancel) == DialogResult.OK)
- await InstallMod(gcmapi);
- }
- }
- }
- }
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