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jellyfin/MediaBrowser.WebDashboard/Api/PackageCreator.cs

153 lines
5.0 KiB

10 years ago
using System;
using System.IO;
using System.Text;
using System.Threading.Tasks;
using MediaBrowser.Controller;
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namespace MediaBrowser.WebDashboard.Api
{
public class PackageCreator
{
private readonly string _basePath;
private readonly IResourceFileManager _resourceFileManager;
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public PackageCreator(string basePath, IResourceFileManager resourceFileManager)
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{
_basePath = basePath;
_resourceFileManager = resourceFileManager;
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}
public async Task<Stream> GetResource(
string virtualPath,
string mode,
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string localizationCulture,
string appVersion)
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{
var resourcePath = _resourceFileManager.GetResourcePath(_basePath, virtualPath);
Stream resourceStream = File.OpenRead(resourcePath);
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if (resourceStream != null && IsCoreHtml(virtualPath))
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{
resourceStream = await ModifyHtml(virtualPath, resourceStream, mode, appVersion, localizationCulture).ConfigureAwait(false);
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}
return resourceStream;
}
public static bool IsCoreHtml(string path)
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{
if (path.IndexOf(".template.html", StringComparison.OrdinalIgnoreCase) != -1)
{
return false;
}
return string.Equals(Path.GetExtension(path), ".html", StringComparison.OrdinalIgnoreCase);
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}
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/// <summary>
/// Modifies the HTML by adding common meta tags, css and js.
/// </summary>
/// <returns>Task{Stream}.</returns>
public async Task<Stream> ModifyHtml(
string path,
Stream sourceStream,
string mode,
string appVersion,
string localizationCulture)
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{
var isMainIndexPage = string.Equals(path, "index.html", StringComparison.OrdinalIgnoreCase);
string html;
using (var reader = new StreamReader(sourceStream, Encoding.UTF8))
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{
html = await reader.ReadToEndAsync().ConfigureAwait(false);
}
if (isMainIndexPage && !string.IsNullOrWhiteSpace(localizationCulture))
{
var lang = localizationCulture.Split('-')[0];
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html = html.Replace("<html", "<html data-culture=\"" + localizationCulture + "\" lang=\"" + lang + "\"");
}
if (isMainIndexPage)
{
html = html.Replace("<head>", "<head>" + GetMetaTags(mode));
}
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// Disable embedded scripts from plugins. We'll run them later once resources have loaded
if (html.IndexOf("<script", StringComparison.OrdinalIgnoreCase) != -1)
{
html = html.Replace("<script", "<!--<script");
html = html.Replace("</script>", "</script>-->");
}
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if (isMainIndexPage)
{
html = html.Replace("</body>", GetCommonJavascript(mode, appVersion) + "</body>");
}
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var bytes = Encoding.UTF8.GetBytes(html);
return new MemoryStream(bytes);
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}
/// <summary>
/// Gets the meta tags.
/// </summary>
/// <returns>System.String.</returns>
private static string GetMetaTags(string mode)
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{
var sb = new StringBuilder();
if (string.Equals(mode, "cordova", StringComparison.OrdinalIgnoreCase)
|| string.Equals(mode, "android", StringComparison.OrdinalIgnoreCase))
{
sb.Append("<meta http-equiv=\"Content-Security-Policy\" content=\"default-src * 'self' 'unsafe-inline' 'unsafe-eval' data: gap: file: filesystem: ws: wss:;\">");
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}
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return sb.ToString();
}
/// <summary>
/// Gets the common javascript.
/// </summary>
/// <param name="mode">The mode.</param>
/// <param name="version">The version.</param>
/// <returns>System.String.</returns>
private static string GetCommonJavascript(string mode, string version)
{
var builder = new StringBuilder();
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builder.Append("<script>");
if (!string.IsNullOrWhiteSpace(mode))
{
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builder.AppendFormat("window.appMode='{0}';", mode);
}
else
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{
builder.AppendFormat("window.dashboardVersion='{0}';", version);
}
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builder.Append("</script>");
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if (string.Equals(mode, "cordova", StringComparison.OrdinalIgnoreCase))
{
builder.Append("<script src=\"cordova.js\" defer></script>");
}
builder.Append("<script src=\"scripts/apploader.js");
if (!string.IsNullOrWhiteSpace(version))
{
builder.Append("?v=");
builder.Append(version);
}
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builder.Append("\" defer></script>");
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return builder.ToString();
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}
}
}