using System;
using System.Collections;
using System.Collections.Generic;
using System.DirectoryServices;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace IISControlHelper
{
  /// <summary>
  /// IIS 操作方法集合
  /// //www.jb51.net/article/72881.htm 錯誤
  /// </summary>
  public class IISWorker
  {
    private static string HostName = "localhost";

    /// <summary>
    /// 獲取本地IIS版本
    /// </summary>
    /// <returns></returns>
    public static string GetIIsVersion()
    {
      try
      {
        DirectoryEntry entry = new DirectoryEntry("IIS://" + HostName + "/W3SVC/INFO");
        string version = entry.Properties["MajorIISVersionNumber"].Value.ToString();
        return version;
      }
      catch (Exception se)
      {
        //說明一點:IIS5.0中沒有(int)entry.Properties["MajorIISVersionNumber"].Value;屬性，將拋出異常 證明版本為 5.0
        return string.Empty;
      }
    }

    /// <summary>
    /// 創(chuàng)建虛擬目錄網(wǎng)站
    /// </summary>
    /// <param name="webSiteName">網(wǎng)站名稱</param>
    /// <param name="physicalPath">物理路徑</param>
    /// <param name="domainPort">站點+端口，如192.168.1.23:90</param>
    /// <param name="isCreateAppPool">是否創(chuàng)建新的應用程序池</param>
    /// <returns></returns>
    public static int CreateWebSite(string webSiteName, string physicalPath, string domainPort,bool isCreateAppPool)
    {
      DirectoryEntry root = new DirectoryEntry("IIS://" + HostName + "/W3SVC");
      // 為新WEB站點查找一個未使用的ID
      int siteID = 1;
      foreach (DirectoryEntry e in root.Children)
      {
        if (e.SchemaClassName == "IIsWebServer")
        {
          int ID = Convert.ToInt32(e.Name);
          if (ID >= siteID) { siteID = ID + 1; }
        }
      }
      // 創(chuàng)建WEB站點
      DirectoryEntry site = (DirectoryEntry)root.Invoke("Create", "IIsWebServer", siteID);
      site.Invoke("Put", "ServerComment", webSiteName);
      site.Invoke("Put", "KeyType", "IIsWebServer");
      site.Invoke("Put", "ServerBindings", domainPort + ":");
      site.Invoke("Put", "ServerState", 2);
      site.Invoke("Put", "FrontPageWeb", 1);
      site.Invoke("Put", "DefaultDoc", "Default.html");
      // site.Invoke("Put", "SecureBindings", ":443:");
      site.Invoke("Put", "ServerAutoStart", 1);
      site.Invoke("Put", "ServerSize", 1);
      site.Invoke("SetInfo");
      // 創(chuàng)建應用程序虛擬目錄

      DirectoryEntry siteVDir = site.Children.Add("Root", "IISWebVirtualDir");
      siteVDir.Properties["AppIsolated"][0] = 2;
      siteVDir.Properties["Path"][0] = physicalPath;
      siteVDir.Properties["AccessFlags"][0] = 513;
      siteVDir.Properties["FrontPageWeb"][0] = 1;
      siteVDir.Properties["AppRoot"][0] = "LM/W3SVC/" + siteID + "/Root";
      siteVDir.Properties["AppFriendlyName"][0] = "Root";

      if (isCreateAppPool)
      {
        DirectoryEntry apppools = new DirectoryEntry("IIS://" + HostName + "/W3SVC/AppPools");

        DirectoryEntry newpool = apppools.Children.Add(webSiteName, "IIsApplicationPool");
        newpool.Properties["AppPoolIdentityType"][0] = "4"; //4
        newpool.Properties["ManagedPipelineMode"][0] = "0"; //0:集成模式 1:經(jīng)典模式
        newpool.CommitChanges();
        siteVDir.Properties["AppPoolId"][0] = webSiteName;
      }

      siteVDir.CommitChanges();
      site.CommitChanges();
      return siteID;
    }

    /// <summary>
    /// 得到網(wǎng)站的物理路徑
    /// </summary>
    /// <param name="rootEntry">網(wǎng)站節(jié)點</param>
    /// <returns></returns>
    public static string GetWebsitePhysicalPath(DirectoryEntry rootEntry)
    {
      string physicalPath = "";
      foreach (DirectoryEntry childEntry in rootEntry.Children)
      {
        if ((childEntry.SchemaClassName == "IIsWebVirtualDir") && (childEntry.Name.ToLower() == "root"))
        {
          if (childEntry.Properties["Path"].Value != null)
          {
            physicalPath = childEntry.Properties["Path"].Value.ToString();
          }
          else
          {
            physicalPath = "";
          }
        }
      }
      return physicalPath;
    }

    /// <summary>
    /// 獲取站點名
    /// </summary>
    public static List<IISInfo> GetServerBindings()
    {
      List<IISInfo> iisList = new List<IISInfo>();
      string entPath = String.Format("IIS://{0}/w3svc", HostName);
      DirectoryEntry ent = new DirectoryEntry(entPath);
      foreach (DirectoryEntry child in ent.Children)
      {
        if (child.SchemaClassName.Equals("IIsWebServer", StringComparison.OrdinalIgnoreCase))
        {
          if (child.Properties["ServerBindings"].Value != null)
          {
            object objectArr = child.Properties["ServerBindings"].Value;
            string serverBindingStr = string.Empty;
            if (IsArray(objectArr))//如果有多個綁定站點時
            {
              object[] objectToArr = (object[])objectArr;
              serverBindingStr = objectToArr[0].ToString();
            }
            else//只有一個綁定站點
            {
              serverBindingStr = child.Properties["ServerBindings"].Value.ToString();
            }
            IISInfo iisInfo = new IISInfo();
            iisInfo.DomainPort = serverBindingStr;
            iisInfo.AppPool = child.Properties["AppPoolId"].Value.ToString();//應用程序池
            iisList.Add(iisInfo);
          }
        }
      }
      return iisList;
    }


    public static bool CreateAppPool(string appPoolName, string Username, string Password)
    {
      bool issucess = false;
      try
      {
        //創(chuàng)建一個新程序池
        DirectoryEntry newpool;
        DirectoryEntry apppools = new DirectoryEntry("IIS://" + HostName + "/W3SVC/AppPools");
        newpool = apppools.Children.Add(appPoolName, "IIsApplicationPool");

        //設置屬性 訪問用戶名和密碼 一般采取默認方式
        newpool.Properties["WAMUserName"][0] = Username;
        newpool.Properties["WAMUserPass"][0] = Password;
        newpool.Properties["AppPoolIdentityType"][0] = "3";
        newpool.CommitChanges();
        issucess = true;
        return issucess;
      }
      catch // (Exception ex) 
      {
        return false;
      }
    }


    /// <summary>
    /// 建立程序池后關(guān)聯(lián)相應應用程序及虛擬目錄
    /// </summary>
    public static void SetAppToPool(string appname,string poolName)
    {
      //獲取目錄
      DirectoryEntry getdir = new DirectoryEntry("IIS://localhost/W3SVC");
      foreach (DirectoryEntry getentity in getdir.Children)
      {
        if (getentity.SchemaClassName.Equals("IIsWebServer"))
        {
          //設置應用程序程序池 先獲得應用程序 在設定應用程序程序池
          //第一次測試根目錄
          foreach (DirectoryEntry getchild in getentity.Children)
          {
            if (getchild.SchemaClassName.Equals("IIsWebVirtualDir"))
            {
              //找到指定的虛擬目錄.
              foreach (DirectoryEntry getsite in getchild.Children)
              {
                if (getsite.Name.Equals(appname))
                {
                  //【測試成功通過】
                  getsite.Properties["AppPoolId"].Value = poolName;
                  getsite.CommitChanges();
                }
              }
            }
          }
        }
      }
    }


    /// <summary>
    /// 判斷object對象是否為數(shù)組
    /// </summary>
    public static bool IsArray(object o)
    {
      return o is Array;
    }
  }
}