118 lines
4.4 KiB
C#
118 lines
4.4 KiB
C#
using dy.net.dto;
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using System.Text;
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using System.Xml.Linq;
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namespace dy.net.utils
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{
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/// <summary>
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/// NFO文件生成器
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/// </summary>
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public class NfoFileGenerator
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{
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public static void GenerateNfoFile(VideoNfo videoInfo, string filePath)
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{
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try
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{
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if (videoInfo == null)
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throw new ArgumentNullException(nameof(videoInfo));
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if (string.IsNullOrWhiteSpace(filePath))
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throw new ArgumentException("文件路径不能为空", nameof(filePath));
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// 创建根元素
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XElement root = new XElement("movie");
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// 添加视频信息（先清理无效字符）
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if (!string.IsNullOrWhiteSpace(videoInfo.Title))
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root.Add(new XElement("title", CleanInvalidXmlChars(videoInfo.Title)));
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if (!string.IsNullOrWhiteSpace(videoInfo.Author))
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root.Add(new XElement("author", CleanInvalidXmlChars(videoInfo.Author)));
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// 发布时间（无需清理，因为是格式化的日期字符串）
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if (videoInfo.ReleaseDate.HasValue)
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root.Add(new XElement("releasedate", videoInfo.ReleaseDate.Value.ToString("yyyy-MM-dd")));
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// 分类标签（清理每个标签）
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if (videoInfo.Genres != null && videoInfo.Genres.Any())
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{
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foreach (var genre in videoInfo.Genres)
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{
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if (!string.IsNullOrWhiteSpace(genre))
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root.Add(new XElement("genre", CleanInvalidXmlChars(genre)));
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}
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}
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if (!string.IsNullOrWhiteSpace(videoInfo.Thumbnail))
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root.Add(new XElement("thumb", new XAttribute("aspect", "poster"), CleanInvalidXmlChars(videoInfo.Thumbnail)));
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if (!string.IsNullOrWhiteSpace(videoInfo.Poster))
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root.Add(new XElement("fanart",
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new XElement("thumb", CleanInvalidXmlChars(videoInfo.Poster))
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));
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// 创建XDocument并保存
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XDocument doc = new XDocument(
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new XDeclaration("1.0", "utf-8", "yes"),
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root
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);
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doc.Save(filePath);
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}
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catch (Exception ex)
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{
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Serilog.Log.Error($"生成 {videoInfo?.Title ?? "未知视频"}, NFO文件时出错: {ex.Message}");
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}
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}
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/// <summary>
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/// 清理字符串中无效的XML字符（包括无效的UTF-16代理对）
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/// </summary>
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private static string CleanInvalidXmlChars(string input)
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{
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if (string.IsNullOrEmpty(input))
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return input;
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StringBuilder cleaned = new StringBuilder();
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for (int i = 0; i < input.Length; i++)
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{
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char c = input[i];
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// XML 1.0 允许的字符范围：#x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
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if (IsValidXmlChar(c))
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{
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// 检查是否是高代理项，如果是则需要配对低代理项
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if (char.IsHighSurrogate(c))
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{
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// 确保不越界，且下一个字符是低代理项
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if (i + 1 < input.Length && char.IsLowSurrogate(input[i + 1]))
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{
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cleaned.Append(c); // 高代理项
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cleaned.Append(input[i + 1]); // 低代理项
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i++; // 跳过已处理的低代理项
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}
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// 否则，高代理项无效，跳过
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}
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else
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{
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cleaned.Append(c);
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}
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}
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// 无效字符直接跳过
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}
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return cleaned.ToString();
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}
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/// <summary>
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/// 判断字符是否为XML允许的有效字符
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/// </summary>
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private static bool IsValidXmlChar(char c)
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{
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return (c == 0x9) || (c == 0xA) || (c == 0xD)
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|| (c >= 0x20 && c <= 0xD7FF)
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|| (c >= 0xE000 && c <= 0xFFFD)
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|| (c >= 0x10000 && c <= 0x10FFFF);
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}
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}
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}
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