document-server-integration/web/documentserver-example/csharp/DocEditor.aspx.cs

/*
 *
 * (c) Copyright Ascensio System SIA 2019
 *
 * The MIT License (MIT)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
*/

using System;
using System.Collections.Generic;
using System.IO;
using System.Web;
using System.Web.Configuration;
using System.Web.Script.Serialization;
using System.Web.UI;
using ASC.Api.DocumentConverter;

namespace OnlineEditorsExample
{
    public partial class DocEditor : Page
    {
        public static string FileName;

        public static string FileUri
        {
            get { return _Default.FileUri(FileName); }
        }

        protected string Key
        {
            get
            {
                return ServiceConverter.GenerateRevisionId(_Default.CurUserHostAddress(null)
                                                           + "/" + Path.GetFileName(FileUri)
                                                           + "/" + File.GetLastWriteTime(_Default.StoragePath(FileName, null)).GetHashCode());
            }
        }

        protected string DocServiceApiUri
        {
            get { return WebConfigurationManager.AppSettings["files.docservice.url.api"] ?? string.Empty; }
        }

        protected string DocConfig { get; private set; }

        public static string CallbackUrl
        {
            get
            {
                var callbackUrl = _Default.Host;
                callbackUrl.Path =
                    HttpRuntime.AppDomainAppVirtualPath
                    + (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
                    + "webeditor.ashx";
                callbackUrl.Query = "type=track"
                                    + "&fileName=" + HttpUtility.UrlEncode(FileName)
                                    + "&userAddress=" + HttpUtility.UrlEncode(HttpContext.Current.Request.UserHostAddress);
                return callbackUrl.ToString();
            }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            var externalUrl = Request["fileUrl"];
            if (!string.IsNullOrEmpty(externalUrl))
            {
                FileName = _Default.DoUpload(externalUrl);
            }
            else
            {
                FileName = Request["fileID"];
            }

            var type = Request["type"];
            if (!string.IsNullOrEmpty(type))
            {
                Try(type);
                Response.Redirect("doceditor.aspx?fileID=" + HttpUtility.UrlEncode(FileName));
            }

            var ext = Path.GetExtension(FileName);
            var config = new Dictionary<string, object>
                {
                    { "type", Request["action"] != "embedded" ? "desktop" : "embedded" },
                    { "documentType", _Default.DocumentType(FileName) },
                    {
                        "document", new Dictionary<string, object>
                            {
                                { "title", FileName },
                                { "url", FileUri },
                                { "fileType", ext.Trim('.') },
                                { "key", Key },
                                {
                                    "info", new Dictionary<string, object>
                                        {
                                            { "author", "Me" },
                                            { "created", DateTime.Now.ToShortDateString() }
                                        }
                                },
                                {
                                    "permissions", new Dictionary<string, object>
                                        {
                                            { "edit", _Default.EditedExts.Contains(ext) },
                                            { "download", true }
                                        }
                                }
                            }
                    },
                    {
                        "editorConfig", new Dictionary<string, object>
                            {
                                { "mode", _Default.EditMode && _Default.EditedExts.Contains(ext) && Request["action"] != "view" ? "edit" : "view" },
                                { "lang", "en" },
                                { "callbackUrl", CallbackUrl },
                                {
                                    "user", new Dictionary<string, object>
                                        {
                                            { "id", _Default.CurUserHostAddress(null) },
                                            { "name", "John Smith" }
                                        }
                                },
                                {
                                    "embedded", new Dictionary<string, object>
                                        {
                                            { "saveUrl", FileUri },
                                            { "embedUrl", FileUri },
                                            { "shareUrl", FileUri },
                                            { "toolbarDocked", "top" }
                                        }
                                },
                                {
                                    "customization", new Dictionary<string, object>
                                        {
                                            { "about", true },
                                            { "feedback", true },
                                            {
                                                "goback", new Dictionary<string, object>
                                                    {
                                                        { "url", _Default.Host + "default.aspx" }
                                                    }
                                            }
                                        }
                                }
                            }
                    }
                };

            if (JwtManager.Enabled)
            {
                var token = JwtManager.Encode(config);
                config.Add("token", token);
            }

            DocConfig = new JavaScriptSerializer().Serialize(config);
        }

        private static void Try(string type)
        {
            string ext;
            switch (type)
            {
                case "document":
                    ext = ".docx";
                    break;
                case "spreadsheet":
                    ext = ".xlsx";
                    break;
                case "presentation":
                    ext = ".pptx";
                    break;
                default:
                    return;
            }
            var demoName = "demo" + ext;
            FileName = _Default.GetCorrectName(demoName);

            File.Copy(HttpRuntime.AppDomainAppPath + "app_data/" + demoName, _Default.StoragePath(FileName, null));
        }
    }
}