好吧,我也遇到了同样的问题,所以我实际上用 Apache POI 和 SVG 编辑编写了一个快速的 PPT 编辑器。但后来我切换到了 Office Web Apps。这是 WOPI 服务器的快速实现,我是一个 Java 人,所以我的.NET 技能非常可怕。编写一个 servlet 应该是微不足道的。
逻辑很简单:
将 WOPISrc 传递给办公网络应用程序 - 这基本上是您的 WOPI 服务器的 URL,其中包含文件位置。您现在可以忽略 access_token/access_token_ttl。
使用至少 2 个请求点击 WOPISrc url 的 Office Web 应用程序:
- 这将是一个元数据请求,基本上是对 WOPIsrc 的 GET 调用。您将创建一个 WOPI (CheckFileInfo) 对象并将其发送回 JSON 编码的办公网络应用程序。
- 现在 Office Web Apps 将请求文件本身,它会将 ( /contents ) 附加到 WOPIsrc 的末尾。所以只需以二进制格式发送回来。
- (可选)Office Web Apps 将在保存时对 (WOPISrc + "/contents") 进行 POST。您可以从 POST 中获取数据并保存到磁盘。
注意:Word 不起作用:/ 您只能查看,对于您需要实现 Cobalt 协议 (FSSHTTP) 的编辑。我正在研究这个主题,但是用 C# 编写会更容易,因为你可以获取 Cobalt 程序集。否则,此协议使用 BASE64 编码二进制消息 (FSSHTTPB) 实现 SOAP (FSSHTTP)
使用以下内容打开 Office Web Apps:
http://OFFICEWEBAPPS.HOST/p/PowerPointFrame.aspx?PowerPointView=EditView&access_token=12345&WOPISrc=URLENCODED_URL_OF_THE_WOPI_SERVER
喜欢:http://WOPISERVER.HOST:2000/wopi/files/1.pptx
这将在您的 c:\temp 中打开 1.pptx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Runtime.Serialization;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web;
using System.IO;
using System.Runtime.Serialization.Json;
namespace WopiServerTutorial
{
public class WopiServer
{
private HttpListener Listener;
static void Main(string[] args)
{
WopiServer s = new WopiServer();
s.Start();
Console.WriteLine("A simple wopi webserver. Press a key to quit.");
Console.ReadKey();
s.Stop();
}
public void Start()
{
Listener = new HttpListener();
Listener.Prefixes.Add(@"http://+:8080/");
Listener.Start();
Listener.BeginGetContext(ProcessRequest, Listener);
Console.WriteLine(@"WopiServer Started");
}
public void Stop()
{
Listener.Stop();
}
private void ProcessRequest(IAsyncResult result)
{
HttpListener listener = (HttpListener)result.AsyncState;
HttpListenerContext context = listener.EndGetContext(result);
Console.WriteLine(@"Got a " + context.Request.HttpMethod + " request for URL: " + context.Request.Url.PathAndQuery);
var stringarr = context.Request.Url.AbsolutePath.Split('/');
var rootDir = @"C:\\temp\\";
if (stringarr.Length == 5 && context.Request.HttpMethod.Equals(@"GET"))
{
Console.WriteLine(@"Getting content for the file: " + rootDir + stringarr[3]);
// get file's content
var file = rootDir + stringarr[3];
var stream = new FileStream(file, FileMode.Open);
var fi = new FileInfo(file);
context.Response.ContentType = @"application/octet-stream";
context.Response.ContentLength64 = fi.Length;
stream.CopyTo(context.Response.OutputStream);
context.Response.Close();
}
//else if (stringarr.Length == 5 && context.Request.HttpMethod.Equals(@"POST"))
//{
// // write
//}
else if (stringarr.Length == 4 && context.Request.HttpMethod.Equals(@"GET"))
{
Console.WriteLine(@"Getting metdata for the file: " + rootDir + stringarr[3]);
var fi = new FileInfo(rootDir + stringarr[3]);
CheckFileInfo cfi = new CheckFileInfo();
cfi.AllowExternalMarketplace = false;
cfi.BaseFileName = fi.Name;
cfi.BreadcrumbBrandName = "";
cfi.BreadcrumbBrandUrl = "";
cfi.BreadcrumbDocName = "";
cfi.BreadcrumbDocUrl = "";
cfi.BreadcrumbFolderName = "";
cfi.BreadcrumbFolderUrl = "";
cfi.ClientUrl = "";
cfi.CloseButtonClosesWindow = false;
cfi.CloseUrl = "";
cfi.DisableBrowserCachingOfUserContent = true;
cfi.DisablePrint = true;
cfi.DisableTranslation = true;
cfi.DownloadUrl = "";
cfi.FileUrl = "";
cfi.FileSharingUrl = "";
cfi.HostAuthenticationId = "s-1-5-21-3430578067-4192788304-1690859819-21774";
cfi.HostEditUrl = "";
cfi.HostEmbeddedEditUrl = "";
cfi.HostEmbeddedViewUrl = "";
cfi.HostName = @"SharePoint";
cfi.HostNotes = @"HostBIEnabled";
cfi.HostRestUrl = "";
cfi.HostViewUrl = "";
cfi.IrmPolicyDescription = "";
cfi.IrmPolicyTitle = "";
cfi.OwnerId = @"4257508bfe174aa28b461536d8b6b648";
cfi.PresenceProvider = "AD";
cfi.PresenceUserId = @"S-1-5-21-3430578067-4192788304-1690859819-21774";
cfi.PrivacyUrl = "";
cfi.ProtectInClient = false;
cfi.ReadOnly = false;
cfi.RestrictedWebViewOnly = false;
cfi.SHA256 = "";
cfi.SignoutUrl = "";
cfi.Size = fi.Length;
cfi.SupportsCoauth = false;
cfi.SupportsCobalt = false;
cfi.SupportsFolders = false;
cfi.SupportsLocks = true;
cfi.SupportsScenarioLinks = false;
cfi.SupportsSecureStore = false;
cfi.SupportsUpdate = true;
cfi.TenantId = @"33b62539-8c5e-423c-aa3e-cc2a9fd796f2";
cfi.TermsOfUseUrl = "";
cfi.TimeZone = @"+0300#0000-11-00-01T02:00:00:0000#+0000#0000-03-00-02T02:00:00:0000#-0060";
cfi.UserCanAttend = false;
cfi.UserCanNotWriteRelative = false;
cfi.UserCanPresent = false;
cfi.UserCanWrite = true;
cfi.UserFriendlyName = "";
cfi.UserId = "";
cfi.Version = @"%22%7B59CCD75F%2D0687%2D4F86%2DBBCF%2D059126640640%7D%2C1%22";
cfi.WebEditingDisabled = false;
// encode json
var memoryStream = new MemoryStream();
var json = new DataContractJsonSerializer(typeof(CheckFileInfo));
json.WriteObject(memoryStream, cfi);
memoryStream.Flush();
memoryStream.Position = 0;
StreamReader streamReader = new StreamReader(memoryStream);
var jsonResponse = Encoding.UTF8.GetBytes(streamReader.ReadToEnd());
context.Response.ContentType = @"application/json";
context.Response.ContentLength64 = jsonResponse.Length;
context.Response.OutputStream.Write(jsonResponse, 0, jsonResponse.Length);
context.Response.Close();
}
else
{
byte[] buffer = Encoding.UTF8.GetBytes("");
context.Response.ContentLength64 = buffer.Length;
context.Response.ContentType = @"application/json";
context.Response.OutputStream.Write(buffer, 0, buffer.Length);
context.Response.OutputStream.Close();
}
Listener.BeginGetContext(ProcessRequest, Listener);
}
}
[DataContract]
public class CheckFileInfo
{
[DataMember]
public bool AllowExternalMarketplace { get; set; }
[DataMember]
public string BaseFileName { get; set; }
[DataMember]
public string BreadcrumbBrandName { get; set; }
[DataMember]
public string BreadcrumbBrandUrl { get; set; }
[DataMember]
public string BreadcrumbDocName { get; set; }
[DataMember]
public string BreadcrumbDocUrl { get; set; }
[DataMember]
public string BreadcrumbFolderName { get; set; }
[DataMember]
public string BreadcrumbFolderUrl { get; set; }
[DataMember]
public string ClientUrl { get; set; }
[DataMember]
public bool CloseButtonClosesWindow { get; set; }
[DataMember]
public string CloseUrl { get; set; }
[DataMember]
public bool DisableBrowserCachingOfUserContent { get; set; }
[DataMember]
public bool DisablePrint { get; set; }
[DataMember]
public bool DisableTranslation { get; set; }
[DataMember]
public string DownloadUrl { get; set; }
[DataMember]
public string FileSharingUrl { get; set; }
[DataMember]
public string FileUrl { get; set; }
[DataMember]
public string HostAuthenticationId { get; set; }
[DataMember]
public string HostEditUrl { get; set; }
[DataMember]
public string HostEmbeddedEditUrl { get; set; }
[DataMember]
public string HostEmbeddedViewUrl { get; set; }
[DataMember]
public string HostName { get; set; }
[DataMember]
public string HostNotes { get; set; }
[DataMember]
public string HostRestUrl { get; set; }
[DataMember]
public string HostViewUrl { get; set; }
[DataMember]
public string IrmPolicyDescription { get; set; }
[DataMember]
public string IrmPolicyTitle { get; set; }
[DataMember]
public string OwnerId { get; set; }
[DataMember]
public string PresenceProvider { get; set; }
[DataMember]
public string PresenceUserId { get; set; }
[DataMember]
public string PrivacyUrl { get; set; }
[DataMember]
public bool ProtectInClient { get; set; }
[DataMember]
public bool ReadOnly { get; set; }
[DataMember]
public bool RestrictedWebViewOnly { get; set; }
[DataMember]
public string SHA256 { get; set; }
[DataMember]
public string SignoutUrl { get; set; }
[DataMember]
public long Size { get; set; }
[DataMember]
public bool SupportsCoauth { get; set; }
[DataMember]
public bool SupportsCobalt { get; set; }
[DataMember]
public bool SupportsFolders { get; set; }
[DataMember]
public bool SupportsLocks { get; set; }
[DataMember]
public bool SupportsScenarioLinks { get; set; }
[DataMember]
public bool SupportsSecureStore { get; set; }
[DataMember]
public bool SupportsUpdate { get; set; }
[DataMember]
public string TenantId { get; set; }
[DataMember]
public string TermsOfUseUrl { get; set; }
[DataMember]
public string TimeZone { get; set; }
[DataMember]
public bool UserCanAttend { get; set; }
[DataMember]
public bool UserCanNotWriteRelative { get; set; }
[DataMember]
public bool UserCanPresent { get; set; }
[DataMember]
public bool UserCanWrite { get; set; }
[DataMember]
public string UserFriendlyName { get; set; }
[DataMember]
public string UserId { get; set; }
[DataMember]
public string Version { get; set; }
[DataMember]
public bool WebEditingDisabled { get; set; }
}
}