Files
document-server-integration/web/documentserver-example/csharp/DocEditor.aspx.cs
2021-08-29 15:39:13 +03:00

550 lines
27 KiB
C#

/**
*
* (c) Copyright Ascensio System SIA 2021
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
using System;
using System.Collections;
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;
// get url to the original file
public static string FileUri
{
get { return _Default.FileUri(FileName, true); }
}
// get url to the original file for Document Server
public static string FileUriUser
{
get { return _Default.FileUri(FileName, false); }
}
protected string Key
{
get
{
// generate document key
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.site"] ?? string.Empty) + (WebConfigurationManager.AppSettings["files.docservice.url.api"] ?? string.Empty); }
}
protected string DocConfig { get; private set; }
protected string History { get; private set; }
protected string HistoryData { get; private set; }
protected string InsertImageConfig { get; private set; }
protected string CompareFileData { get; private set; }
protected string DataMailMergeRecipients { get; private set; }
protected string UsersForMentions { get; private set; }
protected string DocumentType { get { return _Default.DocumentType(FileName); } }
// get callback url
public static string CallbackUrl
{
get
{
var callbackUrl = new UriBuilder(_Default.GetServerUrl(true));
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();
}
}
// get url to the created file
public static string getCreateUrl(String documentType, String editorsType)
{
var createUrl = new UriBuilder(_Default.GetServerUrl(false));
createUrl.Path =
HttpRuntime.AppDomainAppVirtualPath
+ (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
+ "doceditor.aspx";
createUrl.Query = "type=" + documentType
+ "&editorsType=" + editorsType;
return createUrl.ToString();
}
// get url to download a file
public static string getDownloadUrl
{
get
{
var downloadUrl = new UriBuilder(_Default.GetServerUrl(true));
downloadUrl.Path =
HttpRuntime.AppDomainAppVirtualPath
+ (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
+ "webeditor.ashx";
downloadUrl.Query = "type=download"
+ "&fileName=" + HttpUtility.UrlEncode(FileName)
+ "&userAddress=" + HttpUtility.UrlEncode(HttpContext.Current.Request.UserHostAddress);
return downloadUrl.ToString();
}
}
// loading a page
protected void Page_Load(object sender, EventArgs e)
{
// get file url
var externalUrl = Request["fileUrl"];
if (!string.IsNullOrEmpty(externalUrl))
{
// and upload the file by the file url and the request
FileName = _Default.DoUpload(externalUrl, Request);
}
else // if it doesn't exist
{
// get file name
FileName = Path.GetFileName(Request["fileID"]);
}
// get file type
var type = Request["type"];
if (!string.IsNullOrEmpty(type))
{
// create demo document of a specified file type
Try(type, Request["sample"], Request);
Response.Redirect("doceditor.aspx?fileID=" + HttpUtility.UrlEncode(FileName));
}
// get file extension
var ext = Path.GetExtension(FileName).ToLower();
// get editor mode or set the default one (edit)
var editorsMode = Request.GetOrDefault("editorsMode", "edit");
var canEdit = _Default.EditedExts.Contains(ext); // check if this file can be edited
var mode = canEdit && editorsMode != "view" ? "edit" : "view"; // get the editor opening mode (edit or view)
var submitForm = canEdit && (editorsMode.Equals("edit") || editorsMode.Equals("fillForms")); // check if the Submit form button is displayed or hidden
var editorsType = Request.GetOrDefault("editorsType", "desktop");
var id = Request.Cookies.GetOrDefault("uid", null);
var user = Users.getUser(id); // get the user
var jss = new JavaScriptSerializer();
// favorite icon state
bool? favorite = user.favorite;
var actionLink = Request.GetOrDefault("actionLink", null); // get the action link (comment or bookmark) if it exists
var actionData = string.IsNullOrEmpty(actionLink) ? null : jss.DeserializeObject(actionLink); // get action data for the action link
var createUrl = getCreateUrl(DocumentType, editorsType);
var templatesImageUrl = GetTemplateImageUrl(ext); // image url for templates
var templates = new List<Dictionary<string, string>>
{
new Dictionary<string, string>()
{
{ "image", "" },
{ "title", "Blank" },
{ "url", createUrl }
},
new Dictionary<string, string>()
{
{ "image", templatesImageUrl },
{ "title", "With sample content" },
{ "url", createUrl + "&sample=true" }
}
};
// specify the document config
var config = new Dictionary<string, object>
{
{ "type", editorsType },
{ "documentType", DocumentType },
{
"document", new Dictionary<string, object>
{
{ "title", FileName },
{ "url", getDownloadUrl },
{ "fileType", ext.Trim('.') },
{ "key", Key },
{
"info", new Dictionary<string, object>
{
{ "owner", "Me" },
{ "uploaded", DateTime.Now.ToShortDateString() },
{ "favorite", favorite }
}
},
{
// the permission for the document to be edited and downloaded or not
"permissions", new Dictionary<string, object>
{
{ "comment", editorsMode != "view" && editorsMode != "fillForms" && editorsMode != "embedded" && editorsMode != "blockcontent"},
{ "copy", !user.deniedPermissions.Contains("copy") },
{ "download", !user.deniedPermissions.Contains("download") },
{ "edit", canEdit && (editorsMode == "edit" || editorsMode =="view" || editorsMode == "filter" || editorsMode == "blockcontent") },
{ "print", !user.deniedPermissions.Contains("print") },
{ "fillForms", editorsMode != "view" && editorsMode != "comment" && editorsMode != "embedded" && editorsMode != "blockcontent" },
{ "modifyFilter", editorsMode != "filter" },
{ "modifyContentControl", editorsMode != "blockcontent" },
{ "review", canEdit && (editorsMode == "edit" || editorsMode == "review") },
{ "reviewGroups", user.reviewGroups },
{ "commentGroups", user.commentGroups }
}
}
}
},
{
"editorConfig", new Dictionary<string, object>
{
{ "actionLink", actionData },
{ "mode", mode },
{ "lang", Request.Cookies.GetOrDefault("ulang", "en") },
{ "callbackUrl", CallbackUrl }, // absolute URL to the document storage service
{ "createUrl", !user.id.Equals("uid-0") ? createUrl : null },
{ "templates", user.templates ? templates : null },
{
// the user currently viewing or editing the document
"user", new Dictionary<string, object>
{
{ "id", user.id },
{ "name", user.name },
{ "group", user.group }
}
},
{
// the parameters for the embedded document type
"embedded", new Dictionary<string, object>
{
{ "saveUrl", FileUriUser }, // the absolute URL that will allow the document to be saved onto the user personal computer
{ "embedUrl", FileUriUser }, // the absolute URL to the document serving as a source file for the document embedded into the web page
{ "shareUrl", FileUriUser }, // the absolute URL that will allow other users to share this document
{ "toolbarDocked", "top" } // the place for the embedded viewer toolbar (top or bottom)
}
},
{
// the parameters for the editor interface
"customization", new Dictionary<string, object>
{
{ "about", true }, // the About section display
{ "feedback", true }, // the Feedback & Support menu button display
{ "forcesave", false }, // adds the request for the forced file saving to the callback handler
{ "submitForm", submitForm }, // if the Submit form button is displayed or not
{
"goback", new Dictionary<string, object> // settings for the Open file location menu button and upper right corner button
{
{ "url", _Default.GetServerUrl(false) + "default.aspx" } // the absolute URL to the website address which will be opened when clicking the Open file location menu button
}
}
}
}
}
}
};
// if the secret key to generate token exists
if (JwtManager.Enabled)
{
// encode the document config into a token
var token = JwtManager.Encode(config);
config.Add("token", token);
}
DocConfig = jss.Serialize(config);
try
{
// a logo which will be inserted into the document
Dictionary<string, object> logoConfig = GetLogoConfig();
InsertImageConfig = jss.Serialize(logoConfig).Replace("{", "").Replace("}", "");
// a document which will be compared with the current document
Dictionary<string, object> compareFile = GetCompareFile();
CompareFileData = jss.Serialize(compareFile);
// recipient data for mail merging
Dictionary<string, object> mailMergeConfig = GetMailMergeConfig();
DataMailMergeRecipients = jss.Serialize(mailMergeConfig);
// get users for mentions
List<Dictionary<string, object>> usersData = Users.getUsersForMentions(user.id);
UsersForMentions = !user.id.Equals("uid-0") ? jss.Serialize(usersData) : null;
Dictionary<string, object> hist;
Dictionary<string, object> histData;
// get the document history
GetHistory(out hist, out histData);
if (hist != null && histData != null)
{
History = jss.Serialize(hist);
HistoryData = jss.Serialize(histData);
}
}
catch { }
}
// get the document history
private void GetHistory(out Dictionary<string, object> history, out Dictionary<string, object> historyData)
{
var jss = new JavaScriptSerializer();
var histDir = _Default.HistoryDir(_Default.StoragePath(FileName, null));
history = null;
historyData = null;
if (_Default.GetFileVersion(histDir) > 0) // if the file was modified (the file version is greater than 0)
{
var currentVersion = _Default.GetFileVersion(histDir);
var hist = new List<Dictionary<string, object>>();
var histData = new Dictionary<string, object>();
for (var i = 1; i <= currentVersion; i++) // run through all the file versions
{
var obj = new Dictionary<string, object>();
var dataObj = new Dictionary<string, object>();
var verDir = _Default.VersionDir(histDir, i); // get the path to the given file version
var key = i == currentVersion ? Key : File.ReadAllText(Path.Combine(verDir, "key.txt")); // get document key
obj.Add("key", key);
obj.Add("version", i);
if (i == 1) // check if the version number is equal to 1
{
var infoPath = Path.Combine(histDir, "createdInfo.json"); // get meta data of this file
if (File.Exists(infoPath)) {
var info = jss.Deserialize<Dictionary<string, object>>(File.ReadAllText(infoPath));
obj.Add("created", info["created"]); // write meta information to the object (user information and creation date)
obj.Add("user", new Dictionary<string, object>() {
{ "id", info["id"] },
{ "name", info["name"] },
});
}
}
dataObj.Add("key", key);
dataObj.Add("url", i == currentVersion ? FileUri : MakePublicUrl(Directory.GetFiles(verDir, "prev.*")[0])); // write file url to the data object
dataObj.Add("version", i);
if (i > 1) // check if the version number is greater than 1 (the file was modified)
{
// get the path to the changes.json file
var changes = jss.Deserialize<Dictionary<string, object>>(File.ReadAllText(Path.Combine(_Default.VersionDir(histDir, i - 1), "changes.json")));
var changesArray = (ArrayList)changes["changes"];
var change = changesArray.Count > 0
? (Dictionary<string, object>)changesArray[0]
: new Dictionary<string, object>();
// write information about changes to the object
obj.Add("changes", change.Count > 0 ? changes["changes"] : null);
obj.Add("serverVersion", changes["serverVersion"]);
obj.Add("created", change.Count > 0 ? change["created"] : null);
obj.Add("user", change.Count > 0 ? change["user"] : null);
var prev = (Dictionary<string, object>)histData[(i - 2).ToString()]; // get the history data from the previous file version
dataObj.Add("previous", new Dictionary<string, object>() { // write information about previous file version to the data object
{ "key", prev["key"] }, // write key and url information about previous file version
{ "url", prev["url"] },
});
// write the path to the diff.zip archive with differences in this file version
dataObj.Add("changesUrl", MakePublicUrl(Path.Combine(_Default.VersionDir(histDir, i - 1), "diff.zip")));
}
if (JwtManager.Enabled)
{
var token = JwtManager.Encode(dataObj);
dataObj.Add("token", token);
}
hist.Add(obj); // add object dictionary to the hist list
histData.Add((i - 1).ToString(), dataObj); // write data object information to the history data
}
// write history information about the current file version to the history object
history = new Dictionary<string, object>()
{
{ "currentVersion", currentVersion },
{ "history", hist }
};
historyData = histData;
}
}
// get a logo config
private Dictionary<string, object> GetLogoConfig()
{
// get the path to the logo image
var InsertImageUrl = new UriBuilder(_Default.GetServerUrl(true));
InsertImageUrl.Path = HttpRuntime.AppDomainAppVirtualPath
+ (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
+ "App_Themes\\images\\logo.png";
// create a logo config
Dictionary<string, object> logoConfig = new Dictionary<string, object>
{
{ "fileType", "png"},
{ "url", InsertImageUrl.ToString()}
};
if (JwtManager.Enabled) // if the secret key to generate token exists
{
var insImageToken = JwtManager.Encode(logoConfig); // encode logoConfig into the token
logoConfig.Add("token", insImageToken); // and add it to the logo config
}
return logoConfig;
}
// get a document which will be compared with the current document
private Dictionary<string, object> GetCompareFile()
{
// get the path to the compared file
var compareFileUrl = new UriBuilder(_Default.GetServerUrl(true));
compareFileUrl.Path = HttpRuntime.AppDomainAppVirtualPath
+ (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
+ "webeditor.ashx";
compareFileUrl.Query = "type=assets&fileName=" + HttpUtility.UrlEncode("sample.docx");
// create an object with the information about the compared file
Dictionary<string, object> dataCompareFile = new Dictionary<string, object>
{
{ "fileType", "docx" },
{ "url", compareFileUrl.ToString() }
};
if (JwtManager.Enabled) // if the secret key to generate token exists
{
var compareFileToken = JwtManager.Encode(dataCompareFile); // encode the dataCompareFile object into the token
dataCompareFile.Add("token", compareFileToken); // and add it to the dataCompareFile object
}
return dataCompareFile;
}
// get a mail merge config
private Dictionary<string, object> GetMailMergeConfig()
{
// get the path to the recipients data for mail merging
var mailmergeUrl = new UriBuilder(_Default.GetServerUrl(true));
mailmergeUrl.Path =
HttpRuntime.AppDomainAppVirtualPath
+ (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
+ "webeditor.ashx";
mailmergeUrl.Query = "type=csv";
// create a mail merge config
Dictionary<string, object> mailMergeConfig = new Dictionary<string, object>
{
{ "fileType", "csv" },
{ "url", mailmergeUrl.ToString() }
};
if (JwtManager.Enabled) // if the secret key to generate token exists
{
var mailmergeToken = JwtManager.Encode(mailMergeConfig); // encode mailMergeConfig into the token
mailMergeConfig.Add("token", mailmergeToken); // and add it to the mail merge config
}
return mailMergeConfig;
}
// get image url for templates
private string GetTemplateImageUrl (string ext)
{
var path = new UriBuilder(_Default.GetServerUrl(true)) // templates image url in the "From Template" section
{
Path = HttpRuntime.AppDomainAppVirtualPath
+ (HttpRuntime.AppDomainAppVirtualPath.EndsWith("/") ? "" : "/")
+ "App_Themes\\images\\"
};
switch (ext)
{
case ".docx":
return path + "file_docx.svg"; // for word document type
case ".xlsx":
return path + "file_xlsx.svg"; // .xlsx for cell document type
case ".pptx":
return path + "file_pptx.svg"; // .pptx for slide document type
default:
return path + "file_docx.svg"; // the default value
}
}
// create the public url
private string MakePublicUrl(string fullPath)
{
var root = HttpRuntime.AppDomainAppPath + WebConfigurationManager.AppSettings["storage-path"];
return _Default.GetServerUrl(true) + fullPath.Substring(root.Length).Replace(Path.DirectorySeparatorChar, '/');
}
// create demo document
private static void Try(string type, string sample, HttpRequest request)
{
string ext;
switch (type)
{
case "word":
ext = ".docx"; // .docx for word document type
break;
case "cell":
ext = ".xlsx"; // .xlsx for cell document type
break;
case "slide":
ext = ".pptx"; // .pptx for slide document type
break;
default:
return;
}
var demoName = (string.IsNullOrEmpty(sample) ? "new" : "sample") + ext; // create demo document name with the necessary extension
var demoPath = "assets\\" + (string.IsNullOrEmpty(sample) ? "new\\" : "sample\\"); // and put this file into the assets directory
FileName = _Default.GetCorrectName(demoName); // get file name with an index if such a file name already exists
var filePath = _Default.StoragePath(FileName, null);
File.Copy(HttpRuntime.AppDomainAppPath + demoPath + demoName, filePath); // copy this file to the storage directory
// create a json file with file meta data
var id = request.Cookies.GetOrDefault("uid", null);
var user = Users.getUser(id); // get the user
CreateMeta(FileName, user.id, user.name, null);
}
// create a json file with file meta data
public static void CreateMeta(string fileName, string uid, string uname, string userAddress)
{
var histDir = _Default.HistoryDir(_Default.StoragePath(fileName, userAddress));
Directory.CreateDirectory(histDir);
// create the meta data object and write the information into the createdInfo.json file
File.WriteAllText(Path.Combine(histDir, "createdInfo.json"), new JavaScriptSerializer().Serialize(new Dictionary<string, object> {
{ "created", DateTime.Now.ToString("yyyy'-'MM'-'dd HH':'mm':'ss") },
{ "id", uid },
{ "name", uname }
}));
}
}
}