WebDavSharp/WebDavSharp_MVC/WebDAVSharp.Server/MethodHandlers/WebDavCopyMethodHandler.cs

82 lines
3.1 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Web;
using WebDAVSharp.Server.Adapters;
using WebDAVSharp.Server.Exceptions;
using WebDAVSharp.Server.Stores;
namespace WebDAVSharp.Server.MethodHandlers {
/// <summary>
/// This class implements the <c>COPY</c> HTTP method for WebDAV#.
/// </summary>
internal class WebDavCopyMethodHandler : WebDavMethodHandlerBase, IWebDavMethodHandler {
/// <summary>
/// Gets the collection of the names of the HTTP methods handled by this instance.
/// </summary>
/// <value>
/// The names.
/// </value>
public IEnumerable<string> Names {
get {
return new[]
{
"COPY"
};
}
}
/// <summary>
/// Processes the request.
/// </summary>
/// <param name="server">The <see cref="WebDavServer" /> through which the request came in from the client.</param>
/// <param name="context">The
/// <see cref="IHttpListenerContext" /> object containing both the request and response
/// objects to use.</param>
/// <param name="store">The <see cref="IWebDavStore" /> that the <see cref="WebDavServer" /> is hosting.</param>
/// <exception cref="WebDAVSharp.Server.Exceptions.WebDavMethodNotAllowedException"></exception>
public void ProcessRequest(WebDavServer server, HttpContext context, IWebDavStore store, String fileName) {
IWebDavStoreItem source = GetItem(server, store, fileName);
if (source is IWebDavStoreDocument || source is IWebDavStoreCollection)
CopyItem(server, context, store, source);
else
throw new WebDavMethodNotAllowedException();
}
/// <summary>
/// Copies the item.
/// </summary>
/// <param name="server">The server.</param>
/// <param name="context">The context.</param>
/// <param name="store">The store.</param>
/// <param name="source">The source.</param>
/// <exception cref="WebDAVSharp.Server.Exceptions.WebDavForbiddenException"></exception>
/// <exception cref="WebDAVSharp.Server.Exceptions.WebDavPreconditionFailedException"></exception>
private void CopyItem(WebDavServer server, HttpContext context, IWebDavStore store,
IWebDavStoreItem source) {
Uri destinationUri = GetDestinationHeader(context.Request);
IWebDavStoreCollection destinationParentCollection = GetParentCollection(server, store, ExtractLocalPath(server, destinationUri.AbsoluteUri));
bool copyContent = (GetDepthHeader(context.Request) != 0);
bool isNew = true;
string destinationName = Uri.UnescapeDataString(destinationUri.Segments.Last().TrimEnd('/', '\\'));
IWebDavStoreItem destination = destinationParentCollection.GetItemByName(destinationName);
if (destination != null) {
if (source.ItemPath == destination.ItemPath)
throw new WebDavForbiddenException();
if (!GetOverwriteHeader(context.Request))
throw new WebDavPreconditionFailedException();
if (destination is IWebDavStoreCollection)
destinationParentCollection.Delete(destination);
isNew = false;
}
destinationParentCollection.CopyItemHere(source, destinationName, copyContent);
context.SendSimpleResponse(isNew ? HttpStatusCode.Created : HttpStatusCode.NoContent);
}
}
}