jellyfin-server/MediaBrowser.WebDashboard/Api/PackageCreator.cs
2017-10-04 14:51:26 -04:00

303 lines
12 KiB
C#

using MediaBrowser.Controller.Configuration;
using MediaBrowser.Model.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;
namespace MediaBrowser.WebDashboard.Api
{
public class PackageCreator
{
private readonly IFileSystem _fileSystem;
private readonly ILogger _logger;
private readonly IServerConfigurationManager _config;
private readonly IMemoryStreamFactory _memoryStreamFactory;
private readonly string _basePath;
public PackageCreator(string basePath, IFileSystem fileSystem, ILogger logger, IServerConfigurationManager config, IMemoryStreamFactory memoryStreamFactory)
{
_fileSystem = fileSystem;
_logger = logger;
_config = config;
_memoryStreamFactory = memoryStreamFactory;
_basePath = basePath;
}
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 bool IsFormat(string path, string format)
{
return Path.GetExtension(path).EndsWith(format, StringComparison.OrdinalIgnoreCase);
}
/// <summary>
/// Gets the dashboard resource path.
/// </summary>
/// <returns>System.String.</returns>
public string GetResourcePath(string virtualPath)
{
var fullPath = Path.Combine(_basePath, virtualPath.Replace('/', _fileSystem.DirectorySeparatorChar));
try
{
fullPath = _fileSystem.GetFullPath(fullPath);
}
catch (Exception ex)
{
_logger.ErrorException("Error in Path.GetFullPath", ex);
}
// Don't allow file system access outside of the source folder
if (!_fileSystem.ContainsSubPath(_basePath, fullPath))
{
throw new SecurityException("Access denied");
}
return fullPath;
}
public bool IsCoreHtml(string path)
{
if (path.IndexOf(".template.html", StringComparison.OrdinalIgnoreCase) != -1)
{
return false;
}
path = GetResourcePath(path);
var parent = _fileSystem.GetDirectoryName(path);
return string.Equals(_basePath, parent, StringComparison.OrdinalIgnoreCase) ||
string.Equals(Path.Combine(_basePath, "offline"), parent, StringComparison.OrdinalIgnoreCase);
}
/// <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)
{
using (sourceStream)
{
string html;
using (var memoryStream = _memoryStreamFactory.CreateNew())
{
await sourceStream.CopyToAsync(memoryStream).ConfigureAwait(false);
var originalBytes = memoryStream.ToArray();
html = Encoding.UTF8.GetString(originalBytes, 0, originalBytes.Length);
if (!string.IsNullOrWhiteSpace(mode))
{
}
else if (!string.IsNullOrWhiteSpace(path) && !string.Equals(path, "index.html", StringComparison.OrdinalIgnoreCase))
{
var index = html.IndexOf("<body", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
html = html.Substring(index);
html = html.Substring(html.IndexOf('>') + 1);
index = html.IndexOf("</body>", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
html = html.Substring(0, index);
}
}
var mainFile = _fileSystem.ReadAllText(GetResourcePath("index.html"));
html = ReplaceFirst(mainFile, "<div class=\"mainAnimatedPages skinBody\"></div>", "<div class=\"mainAnimatedPages skinBody hide\">" + html + "</div>");
}
if (!string.IsNullOrWhiteSpace(localizationCulture))
{
var lang = localizationCulture.Split('-').FirstOrDefault();
html = html.Replace("<html", "<html data-culture=\"" + localizationCulture + "\" lang=\"" + lang + "\"");
}
}
html = html.Replace("<head>", "<head>" + GetMetaTags(mode) + GetCommonCss(mode, appVersion));
// 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>-->");
}
html = html.Replace("</body>", GetCommonJavascript(mode, appVersion) + "</body>");
var bytes = Encoding.UTF8.GetBytes(html);
return _memoryStreamFactory.CreateNew(bytes);
}
}
public string ReplaceFirst(string text, string search, string replace)
{
int pos = text.IndexOf(search, StringComparison.OrdinalIgnoreCase);
if (pos < 0)
{
return text;
}
return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
}
/// <summary>
/// Gets the meta tags.
/// </summary>
/// <returns>System.String.</returns>
private static 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:;\">");
}
else
{
sb.Append("<meta http-equiv=\"X-UA-Compatibility\" content=\"IE=Edge\">");
}
sb.Append("<link rel=\"manifest\" href=\"manifest.json\">");
sb.Append("<meta name=\"format-detection\" content=\"telephone=no\">");
sb.Append("<meta name=\"msapplication-tap-highlight\" content=\"no\">");
sb.Append("<meta name=\"viewport\" content=\"user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width\">");
sb.Append("<meta name=\"apple-mobile-web-app-capable\" content=\"yes\">");
sb.Append("<meta name=\"mobile-web-app-capable\" content=\"yes\">");
sb.Append("<meta name=\"application-name\" content=\"Emby\">");
//sb.Append("<meta name=\"apple-mobile-web-app-status-bar-style\" content=\"black-translucent\">");
sb.Append("<meta name=\"robots\" content=\"noindex, nofollow, noarchive\">");
// Open graph tags
sb.Append("<meta property=\"og:title\" content=\"Emby\">");
sb.Append("<meta property=\"og:site_name\" content=\"Emby\">");
sb.Append("<meta property=\"og:url\" content=\"http://emby.media\">");
sb.Append("<meta property=\"og:description\" content=\"Energize your media.\">");
sb.Append("<meta property=\"og:type\" content=\"article\">");
sb.Append("<meta property=\"fb:app_id\" content=\"1618309211750238\">");
// http://developer.apple.com/library/ios/#DOCUMENTATION/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html
sb.Append("<link rel=\"apple-touch-icon\" href=\"touchicon.png\">");
sb.Append("<link rel=\"apple-touch-icon\" sizes=\"72x72\" href=\"touchicon72.png\">");
sb.Append("<link rel=\"apple-touch-icon\" sizes=\"114x114\" href=\"touchicon114.png\">");
sb.Append("<link rel=\"apple-touch-startup-image\" href=\"css/images/iossplash.png\">");
sb.Append("<link rel=\"shortcut icon\" href=\"css/images/favicon.ico\">");
sb.Append("<meta name=\"msapplication-TileImage\" content=\"touchicon144.png\">");
sb.Append("<meta name=\"msapplication-TileColor\" content=\"#333333\">");
sb.Append("<meta name=\"theme-color\" content=\"#43A047\">");
return sb.ToString();
}
/// <summary>
/// Gets the common CSS.
/// </summary>
/// <param name="mode">The mode.</param>
/// <param name="version">The version.</param>
/// <returns>System.String.</returns>
private string GetCommonCss(string mode, string version)
{
var versionString = string.IsNullOrWhiteSpace(mode) ? "?v=" + version : string.Empty;
var files = new[]
{
"css/site.css" + versionString
};
var tags = files.Select(s => string.Format("<link rel=\"stylesheet\" href=\"{0}\" async />", s)).ToArray();
return string.Join(string.Empty, tags);
}
/// <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(files.Count);
builder.Append(string.Join(string.Empty, tags));
return builder.ToString();
}
/// <summary>
/// Gets the raw resource stream.
/// </summary>
private Stream GetRawResourceStream(string virtualPath)
{
return _fileSystem.GetFileStream(GetResourcePath(virtualPath), FileOpenMode.Open, FileAccessMode.Read, FileShareMode.ReadWrite, true);
}
}
}