ExportSearchToFile.cs

[Serializable]
  public class ExportSearchToFile : Command
  {
    private string _linkToFile = string.Empty;

    public override void Execute(CommandContext context)
    {
      if (context.Items.Length == 0)
        return;
      Item obj = context.Items[0];
      NameValueCollection parameters = new NameValueCollection();
      parameters["id"] = obj.ID.ToString();
      parameters["language"] = obj.Language.ToString();
      parameters["version"] = obj.Version.ToString();
      parameters["database"] = obj.Database.Name;
      string[] values = context.Parameters.GetValues("url");
      if (values != null)
        parameters["searchString"] = values[0].Replace("\"", string.Empty);
      Context.ClientPage.Start((object) this, "Run", parameters);
    }

    protected void Run(ClientPipelineArgs args)
    {
      Assert.ArgumentNotNull((object) args, nameof (args));
      if (args.IsPostBack)
      {
        if (!(args.Result == "yes"))
          return;
        Database database = Factory.GetDatabase(args.Parameters["database"]);
        Assert.IsNotNull((object) database, "Database \"" + args.Parameters["database"] + "\" not found.");
        Item obj = database.Items[args.Parameters["id"], Language.Parse(args.Parameters["language"]), Sitecore.Data.Version.Parse(args.Parameters["version"])];
        List<SearchStringModel> searchQuery = SearchStringModel.ExtractSearchQuery(args.Parameters["searchString"]);
        Assert.IsNotNull((object) obj, "item");
        ProgressBox.Execute(Translate.Text("Export to File"), Translate.Text("Exporting list to file"), "~/icon/Software/32x32/text_code.png", new ProgressBoxMethod(this.StartProcess), new object[3]
        {
          (object) obj,
          (object) searchQuery,
          (object) args.Result
        });
        if (!string.IsNullOrEmpty(this._linkToFile))
        {
          SheerResponse.Download(this._linkToFile);
          SheerResponse.Alert(string.Format("Finished exporting all search results.", Array.Empty<object>()), Array.Empty<string>());
        }
        else
          SheerResponse.Alert(string.Format("No results found to export.", Array.Empty<object>()), Array.Empty<string>());
      }
      else
      {
        SheerResponse.Confirm("Are you sure you want to export all results?");
        args.WaitForPostBack();
      }
    }

    private void StartProcess(params object[] parameters)
    {
      string parameter1 = (string) parameters[2];
      Item parameter2 = (Item) parameters[0];
      SitecoreIndexableItem sitecoreIndexableItem = SitecoreIndexableItem.op_Implicit(parameter2);
      if (sitecoreIndexableItem == null)
      {
        Log.Error("Export to file - Unable to cast current item - " + parameters[0].GetType().FullName, (object) this);
      }
      else
      {
        List<SearchStringModel> parameter3 = (List<SearchStringModel>) parameters[1];
        using (IProviderSearchContext searchContext = ContentSearchManager.GetIndex((IIndexable) sitecoreIndexableItem).CreateSearchContext((SearchSecurityOptions) 0))
        {
          int num = 0;
          IQueryable<SitecoreUISearchResultItem> query = (IQueryable<SitecoreUISearchResultItem>) LinqHelper.CreateQuery<SitecoreUISearchResultItem>(searchContext, (IEnumerable<SearchStringModel>) parameter3, parameter2, (IEnumerable<IExecutionContext>) null);
          List<Item> source = new List<Item>();
          using (IEnumerator<SitecoreUISearchResultItem> enumerator = ((IEnumerable<SitecoreUISearchResultItem>) query).GetEnumerator())
          {
            while (((IEnumerator) enumerator).MoveNext())
            {
              Item obj = enumerator.Current.GetItem();
              if (obj != null && obj.Security.CanWrite((Account) Context.User) && obj.Name != "__Standard Values")
                source.Add(obj);
            }
          }
          if (source.Count > 0)
          {
            StreamWriter streamWriter = (StreamWriter) null;
            try
            {
              string str1 = "/temp/" + (DateUtil.IsoNow + "_Export") + ".csv";
              string str2 = str1.Replace("/", "\\").Substring(1, str1.Length - 1);
              Log.Info("Exporting file to: " + System.Web.HttpRuntime.AppDomainAppPath + str2, nameof (StartProcess));
              streamWriter = new StreamWriter((Stream) new FileStream(System.Web.HttpRuntime.AppDomainAppPath + str2, FileMode.Create, FileAccess.Write), Encoding.UTF8);
              Item obj1 = source.FirstOrDefault<Item>();
              List<string> stringList1 = new List<string>();
              foreach (Field field in obj1.Fields.ToList<Field>())
              {
                if (!string.IsNullOrEmpty(field.Name))
                  stringList1.Add(field.Name);
              }
              streamWriter.WriteLine("Id," + string.Join(",", (IEnumerable<string>) stringList1));
              foreach (Item obj2 in source)
              {
                ++num;
                if (obj2 != null)
                {
                  List<string> stringList2 = new List<string>();
                  stringList2.Add(obj2.ID.ToString());
                  foreach (string index in stringList1)
                  {
                    string str3 = string.Empty;
                    if (!string.IsNullOrEmpty(obj2.Fields[index].Value))
                    {
                      string typeKey = obj2.Fields[index].TypeKey;
                      str3 = typeKey == "datetime" ? (DateField) obj2.Fields[index].DateTime.ToString((IFormatProvider) CultureInfo.InvariantCulture) : (typeKey == "droplink" ? (LookupField) obj2.Fields[index].TargetItem.DisplayName : obj2.Fields[index].Value);
                    }
                    stringList2.Add("\"" + str3.Replace("\"", "\"\"") + "\"");
                  }
                  streamWriter.WriteLine(string.Join(",", (IEnumerable<string>) stringList2));
                }
              }
              streamWriter.Flush();
              streamWriter.Close();
              Log.Audit((object) this, "Export to file details: Exported a total of {0} items", new string[1]
              {
                num.ToString((IFormatProvider) CultureInfo.InvariantCulture)
              });
              this._linkToFile = str1;
            }
            catch (Exception ex)
            {
              Log.Error("Exception in Export to File - Search: " + ex.Message, (object) this);
              this._linkToFile = "An error occurred - please contact Support.";
              if (streamWriter != null)
                streamWriter.Close();
            }
          }
        }
      }
    }
  }