jellyfin/MediaBrowser.WebDashboard/Api/PackageCreator.cs
Erwin de Haan ec1f5dc317 Mayor code cleanup
Add Argument*Exceptions now use proper nameof operators.

Added exception messages to quite a few Argument*Exceptions.

Fixed rethorwing to be proper syntax.

Added a ton of null checkes. (This is only a start, there are about 500 places that need proper null handling)

Added some TODOs to log certain exceptions.

Fix sln again.

Fixed all AssemblyInfo's and added proper copyright (where I could find them)

We live in *current year*.

Fixed the use of braces.

Fixed a ton of properties, and made a fair amount of functions static that should be and can be static.

Made more Methods that should be static static.

You can now use static to find bad functions!

Removed unused variable. And added one more proper XML comment.
2019-01-10 20:38:53 +01:00

199 lines
6.7 KiB
C#

using MediaBrowser.Controller.Configuration;
using Microsoft.Extensions.Logging;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Extensions;
using MediaBrowser.Controller;
namespace MediaBrowser.WebDashboard.Api
{
public class PackageCreator
{
private readonly IFileSystem _fileSystem;
private readonly ILogger _logger;
private readonly IServerConfigurationManager _config;
private readonly string _basePath;
private IResourceFileManager _resourceFileManager;
public PackageCreator(string basePath, IFileSystem fileSystem, ILogger logger, IServerConfigurationManager config, IResourceFileManager resourceFileManager)
{
_fileSystem = fileSystem;
_logger = logger;
_config = config;
_basePath = basePath;
_resourceFileManager = resourceFileManager;
}
public async Task<Stream> GetResource(string virtualPath,
string mode,
string localizationCulture,
string appVersion)
{
var resourceStream = GetRawResourceStream(virtualPath);
if (resourceStream != null)
{
if (IsFormat(virtualPath, "html"))
{
if (IsCoreHtml(virtualPath))
{
resourceStream = await ModifyHtml(virtualPath, resourceStream, mode, appVersion, localizationCulture).ConfigureAwait(false);
}
}
}
return resourceStream;
}
/// <summary>
/// Determines whether the specified path is HTML.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="format">The format.</param>
/// <returns><c>true</c> if the specified path is HTML; otherwise, <c>false</c>.</returns>
private static bool IsFormat(string path, string format)
{
return Path.GetExtension(path).EndsWith(format, StringComparison.OrdinalIgnoreCase);
}
public bool IsCoreHtml(string path)
{
if (path.IndexOf(".template.html", StringComparison.OrdinalIgnoreCase) != -1)
{
return false;
}
return IsFormat(path, "html");
}
/// <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)
{
var isMainIndexPage = string.Equals(path, "index.html", StringComparison.OrdinalIgnoreCase);
using (sourceStream)
{
string html;
using (var memoryStream = new MemoryStream())
{
await sourceStream.CopyToAsync(memoryStream).ConfigureAwait(false);
var originalBytes = memoryStream.ToArray();
html = Encoding.UTF8.GetString(originalBytes, 0, originalBytes.Length);
if (isMainIndexPage)
{
if (!string.IsNullOrWhiteSpace(localizationCulture))
{
var lang = localizationCulture.Split('-').FirstOrDefault();
html = html.Replace("<html", "<html data-culture=\"" + localizationCulture + "\" lang=\"" + lang + "\"");
}
}
}
if (isMainIndexPage)
{
html = html.Replace("<head>", "<head>" + GetMetaTags(mode));
}
// 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>-->");
}
if (isMainIndexPage)
{
html = html.Replace("</body>", GetCommonJavascript(mode, appVersion) + "</body>");
}
var bytes = Encoding.UTF8.GetBytes(html);
return new MemoryStream(bytes);
}
}
/// <summary>
/// Gets the meta tags.
/// </summary>
/// <returns>System.String.</returns>
private string GetMetaTags(string mode)
{
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:;\">");
}
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 string GetCommonJavascript(string mode, string version)
{
var builder = new StringBuilder();
builder.Append("<script>");
if (!string.IsNullOrWhiteSpace(mode))
{
builder.AppendFormat("window.appMode='{0}';", mode);
}
else
{
builder.AppendFormat("window.dashboardVersion='{0}';", version);
}
builder.Append("</script>");
var versionString = string.IsNullOrWhiteSpace(mode) ? "?v=" + version : string.Empty;
var files = new List<string>();
files.Add("scripts/apploader.js" + versionString);
if (string.Equals(mode, "cordova", StringComparison.OrdinalIgnoreCase))
{
files.Insert(0, "cordova.js");
}
var tags = files.Select(s => string.Format("<script src=\"{0}\" defer></script>", s)).ToArray();
builder.Append(string.Join(string.Empty, tags));
return builder.ToString();
}
/// <summary>
/// Gets the raw resource stream.
/// </summary>
private Stream GetRawResourceStream(string virtualPath)
{
return _resourceFileManager.GetResourceFileStream(_basePath, virtualPath);
}
}
}