mirror of
https://github.com/jellyfin/jellyfin.git
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127 lines
4.6 KiB
C#
127 lines
4.6 KiB
C#
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using System.Linq;
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using System.Xml.Linq;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Channels;
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using MediaBrowser.Dlna.PlayTo;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Querying;
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using System;
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using System.Globalization;
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using System.IO;
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using System.Security;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Dlna.ContentDirectory
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{
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public class ContentDirectoryBrowser
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{
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private readonly IHttpClient _httpClient;
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private readonly ILogger _logger;
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public ContentDirectoryBrowser(IHttpClient httpClient, ILogger logger)
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{
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_httpClient = httpClient;
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_logger = logger;
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}
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private static XNamespace UNamespace = "u";
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public async Task<QueryResult<ChannelItemInfo>> Browse(ContentDirectoryBrowseRequest request, CancellationToken cancellationToken)
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{
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var options = new HttpRequestOptions
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{
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CancellationToken = cancellationToken,
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UserAgent = "Media Browser",
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RequestContentType = "text/xml; charset=\"utf-8\"",
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LogErrorResponseBody = true,
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Url = request.ContentDirectoryUrl
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};
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options.RequestHeaders["SOAPACTION"] = "urn:schemas-upnp-org:service:ContentDirectory:1#Browse";
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options.RequestContent = GetRequestBody(request);
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var response = await _httpClient.SendAsync(options, "POST");
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using (var reader = new StreamReader(response.Content))
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{
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var doc = XDocument.Parse(reader.ReadToEnd(), LoadOptions.PreserveWhitespace);
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var queryResult = new QueryResult<ChannelItemInfo>();
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if (doc.Document == null)
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return queryResult;
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var responseElement = doc.Document.Descendants(UNamespace + "BrowseResponse").ToList();
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var countElement = responseElement.Select(i => i.Element("TotalMatches")).FirstOrDefault(i => i != null);
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var countValue = countElement == null ? null : countElement.Value;
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int count;
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if (!string.IsNullOrWhiteSpace(countValue) && int.TryParse(countValue, NumberStyles.Integer, CultureInfo.InvariantCulture, out count))
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{
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queryResult.TotalRecordCount = count;
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var resultElement = responseElement.Select(i => i.Element("Result")).FirstOrDefault(i => i != null);
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var resultString = (string)resultElement;
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if (resultElement != null)
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{
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var xElement = XElement.Parse(resultString);
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}
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}
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return queryResult;
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}
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}
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private string GetRequestBody(ContentDirectoryBrowseRequest request)
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{
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var builder = new StringBuilder();
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builder.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
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builder.Append("<s:Envelope s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\"><s:Body>");
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builder.Append("<u:Browse xmlns:u=\"urn:schemas-upnp-org:service:ContentDirectory:1\">");
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if (string.IsNullOrWhiteSpace(request.ParentId))
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{
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request.ParentId = "1";
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}
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builder.AppendFormat("<ObjectID>{0}</ObjectID>", SecurityElement.Escape(request.ParentId));
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builder.Append("<BrowseFlag>BrowseDirectChildren</BrowseFlag>");
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//builder.Append("<BrowseFlag>BrowseMetadata</BrowseFlag>");
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builder.Append("<Filter>*</Filter>");
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request.StartIndex = request.StartIndex ?? 0;
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builder.AppendFormat("<StartingIndex>{0}</StartingIndex>", SecurityElement.Escape(request.StartIndex.Value.ToString(CultureInfo.InvariantCulture)));
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request.Limit = request.Limit ?? 20;
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if (request.Limit.HasValue)
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{
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builder.AppendFormat("<RequestedCount>{0}</RequestedCount>", SecurityElement.Escape(request.Limit.Value.ToString(CultureInfo.InvariantCulture)));
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}
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builder.Append("<SortCriteria></SortCriteria>");
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builder.Append("</u:Browse>");
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builder.Append("</s:Body></s:Envelope>");
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return builder.ToString();
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}
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}
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public class ContentDirectoryBrowseRequest
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{
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public int? StartIndex { get; set; }
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public int? Limit { get; set; }
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public string ParentId { get; set; }
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public string ContentDirectoryUrl { get; set; }
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}
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}
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