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using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.IO;
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using MediaBrowser.Controller;
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using MediaBrowser.Controller.Themes;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Serialization;
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using MediaBrowser.Model.Themes;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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namespace MediaBrowser.Server.Implementations.Themes
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{
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public class AppThemeManager : IAppThemeManager
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{
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private readonly IServerApplicationPaths _appPaths;
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private readonly IFileSystem _fileSystem;
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private readonly IJsonSerializer _json;
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private readonly ILogger _logger;
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private readonly string[] _supportedImageExtensions = { ".png", ".jpg", ".jpeg" };
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public AppThemeManager(IServerApplicationPaths appPaths, IFileSystem fileSystem, IJsonSerializer json, ILogger logger)
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{
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_appPaths = appPaths;
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_fileSystem = fileSystem;
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_json = json;
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_logger = logger;
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}
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private string ThemePath
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{
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get
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{
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return Path.Combine(_appPaths.ItemsByNamePath, "appthemes");
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}
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}
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private string GetThemesPath(string applicationName)
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{
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if (string.IsNullOrWhiteSpace(applicationName))
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{
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throw new ArgumentNullException("applicationName");
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}
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// Force everything lowercase for consistency and maximum compatibility with case-sensitive file systems
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var name = _fileSystem.GetValidFilename(applicationName.ToLower());
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return Path.Combine(ThemePath, name);
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}
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private string GetThemePath(string applicationName, string name)
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{
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if (string.IsNullOrWhiteSpace(name))
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{
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throw new ArgumentNullException("name");
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}
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// Force everything lowercase for consistency and maximum compatibility with case-sensitive file systems
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name = _fileSystem.GetValidFilename(name.ToLower());
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return Path.Combine(GetThemesPath(applicationName), name);
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}
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public IEnumerable<AppThemeInfo> GetThemes(string applicationName)
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{
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var path = GetThemesPath(applicationName);
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try
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{
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return Directory
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.EnumerateFiles(path, "*", SearchOption.AllDirectories)
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.Where(i => string.Equals(Path.GetExtension(i), ".json", StringComparison.OrdinalIgnoreCase))
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.Select(i =>
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{
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try
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{
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return _json.DeserializeFromFile<AppThemeInfo>(i);
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error deserializing {0}", ex, i);
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return null;
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}
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}).Where(i => i != null);
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}
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catch (DirectoryNotFoundException)
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{
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return new List<AppThemeInfo>();
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}
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}
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public AppTheme GetTheme(string applicationName, string name)
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{
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var themePath = GetThemePath(applicationName, name);
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var file = Path.Combine(themePath, "theme.json");
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var theme = _json.DeserializeFromFile<AppTheme>(file);
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theme.Images = new DirectoryInfo(themePath)
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.EnumerateFiles("*", SearchOption.TopDirectoryOnly)
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.Where(i => _supportedImageExtensions.Contains(i.Extension, StringComparer.OrdinalIgnoreCase))
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.Select(GetThemeImage)
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.ToList();
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return theme;
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}
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private ThemeImage GetThemeImage(FileInfo file)
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{
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var dateModified = _fileSystem.GetLastWriteTimeUtc(file);
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var cacheTag = (file.FullName + dateModified.Ticks).GetMD5().ToString("N");
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return new ThemeImage
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{
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CacheTag = cacheTag,
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Name = file.Name
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};
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}
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public void SaveTheme(AppTheme theme)
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{
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var themePath = GetThemePath(theme.ApplicationName, theme.Name);
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var file = Path.Combine(themePath, "theme.json");
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Directory.CreateDirectory(themePath);
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// Clone it so that we don't serialize all the images - they're always dynamic
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var clone = new AppTheme
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{
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ApplicationName = theme.ApplicationName,
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Name = theme.Name,
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Options = theme.Options,
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Images = null
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};
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_json.SerializeToFile(clone, file);
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}
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public InternalThemeImage GetImageImageInfo(string applicationName, string themeName, string imageName)
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{
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var themePath = GetThemePath(applicationName, themeName);
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var fullPath = Path.Combine(themePath, imageName);
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var file = new DirectoryInfo(themePath).EnumerateFiles("*", SearchOption.TopDirectoryOnly)
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.First(i => string.Equals(i.FullName, fullPath, StringComparison.OrdinalIgnoreCase));
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var themeImage = GetThemeImage(file);
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return new InternalThemeImage
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{
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CacheTag = themeImage.CacheTag,
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Name = themeImage.Name,
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Path = file.FullName,
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DateModified = _fileSystem.GetLastWriteTimeUtc(file)
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};
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}
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}
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}
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Luke Pulverenti
10 years ago