Fix issue#24

Wox/Helper/PluginInstaller.cs

@@ -0,0 +1,209 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using ICSharpCode.SharpZipLib.Zip;
+using Newtonsoft.Json;
+using Wox.Plugin;
+
+namespace Wox.Helper
+{
+    public class PluginInstaller
+    {
+
+        public static void Install(string path)
+        {
+            if (File.Exists(path))
+            {
+                string tempFoler = System.IO.Path.GetTempPath() + "\\wox\\plugins";
+                if (Directory.Exists(tempFoler))
+                {
+                    Directory.Delete(tempFoler, true);
+                }
+                UnZip(path, tempFoler, true);
+
+                string iniPath = tempFoler + "\\plugin.json";
+                if (!File.Exists(iniPath))
+                {
+                    MessageBox.Show("Install failed: config is missing");
+                    return;
+                }
+
+                PluginMetadata plugin = GetMetadataFromJson(tempFoler);
+                if (plugin == null || plugin.Name == null)
+                {
+                    MessageBox.Show("Install failed: config of this plugin is invalid");
+                    return;
+                }
+
+                string pluginFolerPath = AppDomain.CurrentDomain.BaseDirectory + "Plugins";
+                if (!Directory.Exists(pluginFolerPath))
+                {
+                    MessageBox.Show("Install failed: cound't find plugin directory");
+                    return;
+                }
+
+                string newPluginPath = pluginFolerPath + "\\" + plugin.Name;
+                string content = string.Format(
+                        "Do you want to install following plugin?\r\nName: {0}\r\nVersion: {1}\r\nAuthor: {2}",
+                        plugin.Name, plugin.Version, plugin.Author);
+                if (Directory.Exists(newPluginPath))
+                {
+                    PluginMetadata existingPlugin = GetMetadataFromJson(newPluginPath);
+                    if (existingPlugin == null || existingPlugin.Name == null)
+                    {
+                        //maybe broken plugin, just delete it
+                        Directory.Delete(newPluginPath, true);
+                    }
+                    else
+                    {
+                        content = string.Format(
+                        "Do you want to update following plugin?\r\nName: {0}\r\nOld Version: {1}\r\nNew Version: {2}\r\nAuthor: {3}",
+                        plugin.Name, existingPlugin.Version, plugin.Version, plugin.Author);
+                    }
+                }
+
+                MessageBoxResult result = MessageBox.Show(content, "Install plugin",
+                    MessageBoxButton.YesNo, MessageBoxImage.Question);
+                if (result == MessageBoxResult.Yes)
+                {
+                    if (Directory.Exists(newPluginPath))
+                    {
+                        Directory.Delete(newPluginPath, true);
+                    }
+                    UnZip(path, newPluginPath, true);
+                    Directory.Delete(tempFoler, true);
+
+
+                    string wox = AppDomain.CurrentDomain.BaseDirectory + "Wox.exe";
+                    if (File.Exists(wox))
+                    {
+                        ProcessStartInfo info = new ProcessStartInfo(wox, "reloadplugin")
+                        {
+                            UseShellExecute = true
+                        };
+                        Process.Start(info);
+                        MessageBox.Show("You have installed plugin " + plugin.Name + " successfully.");
+                    }
+                    else
+                    {
+                        MessageBox.Show("You have installed plugin " + plugin.Name + " successfully. Please restart your wox to use new plugin.");
+                    }
+                }
+            }
+        }
+
+        private static PluginMetadata GetMetadataFromJson(string pluginDirectory)
+        {
+            string configPath = Path.Combine(pluginDirectory, "plugin.json");
+            PluginMetadata metadata;
+
+            if (!File.Exists(configPath))
+            {
+                return null;
+            }
+
+            try
+            {
+                metadata = JsonConvert.DeserializeObject<PluginMetadata>(File.ReadAllText(configPath));
+                metadata.PluginType = PluginType.ThirdParty;
+                metadata.PluginDirecotry = pluginDirectory;
+            }
+            catch (Exception)
+            {
+                string error = string.Format("Parse plugin config {0} failed: json format is not valid", configPath);
+#if (DEBUG)
+                {
+                    throw new Exception(error);
+                }
+#endif
+                return null;
+            }
+
+
+            if (!AllowedLanguage.IsAllowed(metadata.Language))
+            {
+                string error = string.Format("Parse plugin config {0} failed: invalid language {1}", configPath,
+                    metadata.Language);
+#if (DEBUG)
+                {
+                    throw new Exception(error);
+                }
+#endif
+                return null;
+            }
+            if (!File.Exists(metadata.ExecuteFilePath))
+            {
+                string error = string.Format("Parse plugin config {0} failed: ExecuteFile {1} didn't exist", configPath,
+                    metadata.ExecuteFilePath);
+#if (DEBUG)
+                {
+                    throw new Exception(error);
+                }
+#endif
+                return null;
+            }
+
+            return metadata;
+        }
+
+        /// <summary>
+        /// unzip 
+        /// </summary>
+        /// <param name="zipedFile">The ziped file.</param>
+        /// <param name="strDirectory">The STR directory.</param>
+        /// <param name="overWrite">overwirte</param>
+        private static void UnZip(string zipedFile, string strDirectory, bool overWrite)
+        {
+            if (strDirectory == "")
+                strDirectory = Directory.GetCurrentDirectory();
+            if (!strDirectory.EndsWith("\\"))
+                strDirectory = strDirectory + "\\";
+
+            using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipedFile)))
+            {
+                ZipEntry theEntry;
+
+                while ((theEntry = s.GetNextEntry()) != null)
+                {
+                    string directoryName = "";
+                    string pathToZip = "";
+                    pathToZip = theEntry.Name;
+
+                    if (pathToZip != "")
+                        directoryName = Path.GetDirectoryName(pathToZip) + "\\";
+
+                    string fileName = Path.GetFileName(pathToZip);
+
+                    Directory.CreateDirectory(strDirectory + directoryName);
+
+                    if (fileName != "")
+                    {
+                        if ((File.Exists(strDirectory + directoryName + fileName) && overWrite) || (!File.Exists(strDirectory + directoryName + fileName)))
+                        {
+                            using (FileStream streamWriter = File.Create(strDirectory + directoryName + fileName))
+                            {
+                                byte[] data = new byte[2048];
+                                while (true)
+                                {
+                                    int size = s.Read(data, 0, data.Length);
+
+                                    if (size > 0)
+                                        streamWriter.Write(data, 0, size);
+                                    else
+                                        break;
+                                }
+                                streamWriter.Close();
+                            }
+                        }
+                    }
+                }
+
+                s.Close();
+            }
+        }
+    }
+}