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//------------------------------------------------------------------------------
// <copyright file="ScriptResourceInfo.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI {
using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Reflection;
using System.Web.Handlers;
using System.Web.Resources;
using System.Web.Util;
internal class ScriptResourceInfo {
private string _contentType;
private bool _performSubstitution;
private string _scriptName;
private string _scriptResourceName;
private string _typeName;
private bool _isDebug;
private string _cdnPath;
private string _cdnPathSecureConnection;
private readonly string _loadSuccessExpression;
private static readonly IDictionary _scriptCache = Hashtable.Synchronized(new Hashtable());
private static readonly IDictionary _duplicateScriptAttributesChecked = Hashtable.Synchronized(new Hashtable());
public static readonly ScriptResourceInfo Empty = new ScriptResourceInfo();
private ScriptResourceInfo() {
}
public ScriptResourceInfo(WebResourceAttribute wra, ScriptResourceAttribute sra, Assembly assembly)
: this() {
_scriptName = wra.WebResource;
_cdnPath = wra.CdnPath;
_contentType = wra.ContentType;
_performSubstitution = wra.PerformSubstitution;
_loadSuccessExpression = wra.LoadSuccessExpression;
_isDebug = !String.IsNullOrEmpty(_scriptName) && _scriptName.EndsWith(".debug.js", StringComparison.OrdinalIgnoreCase);
if (sra != null) {
_scriptResourceName = sra.StringResourceName;
_typeName = sra.StringResourceClientTypeName;
}
if (!String.IsNullOrEmpty(_cdnPath)) {
_cdnPath = AssemblyResourceLoader.FormatCdnUrl(assembly, _cdnPath);
_cdnPathSecureConnection = AssemblyResourceLoader.FormatCdnUrl(assembly, wra.CdnPathSecureConnection);
}
}
public string CdnPath {
get {
return _cdnPath;
}
}
public string CdnPathSecureConnection {
get {
return _cdnPathSecureConnection;
}
}
public string LoadSuccessExpression {
get {
return _loadSuccessExpression;
}
}
public string ContentType {
get { return _contentType; }
}
public bool IsDebug {
get { return _isDebug; }
}
public bool PerformSubstitution {
get { return _performSubstitution; }
}
public string ScriptName {
get { return _scriptName; }
}
public string ScriptResourceName {
get { return _scriptResourceName; }
}
public string TypeName {
get { return _typeName; }
}
public static ScriptResourceInfo GetInstance(Assembly assembly, string resourceName) {
// The first time this API is called, check for attributes that point to the same script
if (!_duplicateScriptAttributesChecked.Contains(assembly)) {
Dictionary<string, bool> scripts = new Dictionary<string, bool>();
foreach (ScriptResourceAttribute attr
in assembly.GetCustomAttributes(typeof(ScriptResourceAttribute), false)) {
string scriptName = attr.ScriptName;
if (scripts.ContainsKey(scriptName)) {
throw new InvalidOperationException(
String.Format(CultureInfo.CurrentCulture,
AtlasWeb.ScriptResourceHandler_DuplicateScriptResources,
scriptName, assembly.GetName()));
}
scripts.Add(scriptName, true);
}
_duplicateScriptAttributesChecked[assembly] = true;
}
Tuple<Assembly, string> cacheKey = new Tuple<Assembly, string>(assembly, resourceName);
ScriptResourceInfo resourceInfo = (ScriptResourceInfo)_scriptCache[cacheKey];
if (resourceInfo == null) {
WebResourceAttribute webResourceAttribute = null;
ScriptResourceAttribute scriptResourceAttribute = null;
// look for a WebResourceAttribute with that name
object[] attrs = assembly.GetCustomAttributes(typeof(WebResourceAttribute), false);
foreach (WebResourceAttribute wra in attrs) {
if (String.Equals(wra.WebResource, resourceName, StringComparison.Ordinal)) {
webResourceAttribute = wra;
break;
}
}
if (webResourceAttribute != null) {
// look for a script resource attribute with that name
attrs = assembly.GetCustomAttributes(typeof(ScriptResourceAttribute), false);
foreach (ScriptResourceAttribute sra in attrs) {
if (String.Equals(sra.ScriptName, resourceName, StringComparison.Ordinal)) {
scriptResourceAttribute = sra;
break;
}
}
resourceInfo = new ScriptResourceInfo(webResourceAttribute, scriptResourceAttribute, assembly);
}
else {
resourceInfo = ScriptResourceInfo.Empty;
}
// Cache the results so we don't have to do this again
_scriptCache[cacheKey] = resourceInfo;
}
return resourceInfo;
}
}
}
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