Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / Compilation / BrowserCapabilitiesCompiler.cs / 1 / BrowserCapabilitiesCompiler.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.Compilation {
using System;
using System.CodeDom;
using System.Collections;
using System.Collections.Specialized;
using System.Configuration;
using System.CodeDom.Compiler;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Web.Configuration;
using System.Web.Hosting;
using System.Web.Util;
using System.Web.UI;
using System.Xml;
static class BrowserCapabilitiesCompiler {
internal static readonly VirtualPath AppBrowsersVirtualDir =
HttpRuntime.AppDomainAppVirtualPathObject.SimpleCombineWithDir(HttpRuntime.BrowsersDirectoryName);
private const string browerCapabilitiesTypeName = "BrowserCapabilities";
private const string browerCapabilitiesCacheKey = "__browserCapabilitiesCompiler";
private static Type _browserCapabilitiesFactoryBaseType;
private static Type _browserCapabilitiesFactoryType;
private static BrowserCapabilitiesFactoryBase _browserCapabilitiesFactoryBaseInstance;
private static object _lockObject = new object();
static BrowserCapabilitiesCompiler() {
Assembly assembly = null;
String publicKeyToken = BrowserCapabilitiesCodeGenerator.BrowserCapAssemblyPublicKeyToken;
// If the token file cannot be found, do not load the assembly.
if (publicKeyToken != null) {
try {
assembly = Assembly.Load("ASP.BrowserCapsFactory, Version=" + ThisAssembly.Version + ", Culture=neutral, PublicKeyToken=" + publicKeyToken);
}
catch (FileNotFoundException) {
}
}
// fallback when assembly cannot be found.
if((assembly == null) || (!(assembly.GlobalAssemblyCache))) {
_browserCapabilitiesFactoryBaseType = typeof(System.Web.Configuration.BrowserCapabilitiesFactory);
}
else {
_browserCapabilitiesFactoryBaseType = assembly.GetType("ASP.BrowserCapabilitiesFactory", true);
}
}
internal static BrowserCapabilitiesFactoryBase BrowserCapabilitiesFactory {
get {
if(_browserCapabilitiesFactoryBaseInstance != null) {
return _browserCapabilitiesFactoryBaseInstance;
}
lock(_lockObject) {
if(_browserCapabilitiesFactoryBaseInstance == null) {
_browserCapabilitiesFactoryType = GetBrowserCapabilitiesType();
if(_browserCapabilitiesFactoryType != null) {
_browserCapabilitiesFactoryBaseInstance =
(BrowserCapabilitiesFactoryBase)Activator.CreateInstance(_browserCapabilitiesFactoryType);
}
}
}
return _browserCapabilitiesFactoryBaseInstance;
}
}
internal static Type GetBrowserCapabilitiesFactoryBaseType() {
return _browserCapabilitiesFactoryBaseType;
}
internal static Type GetBrowserCapabilitiesType() {
//Need to assert here to check directories and files
InternalSecurityPermissions.Unrestricted.Assert();
BuildResult result = null;
try {
// Try the cache first, and if it's not there, compile it
result = BuildManager.GetBuildResultFromCache(browerCapabilitiesCacheKey);
if (result == null) {
DateTime utcStart = DateTime.UtcNow;
VirtualDirectory directory = AppBrowsersVirtualDir.GetDirectory();
// first try if app browser dir exists
string physicalDir = HostingEnvironment.MapPathInternal(AppBrowsersVirtualDir);
/* DevDivBugs 173531
* For the App_Browsers scenario, we need to cache the generated browser caps processing
* code. We need to add path dependency on all files so that changes to them will
* invalidate the cache entry and cause recompilation. */
if (directory != null && Directory.Exists(physicalDir)) {
ArrayList browserFileList = new ArrayList();
ArrayList browserFileDependenciesList = new ArrayList();
bool hasCustomCaps = AddBrowserFilesToList(directory, browserFileList, false);
if (hasCustomCaps) {
AddBrowserFilesToList(directory, browserFileDependenciesList, true);
}
else {
browserFileDependenciesList = browserFileList;
}
if (browserFileDependenciesList.Count > 0) {
ApplicationBrowserCapabilitiesBuildProvider buildProvider = new ApplicationBrowserCapabilitiesBuildProvider();
foreach (string virtualPath in browserFileList) {
buildProvider.AddFile(virtualPath);
}
BuildProvidersCompiler bpc = new BuildProvidersCompiler(null /*configPath*/,
BuildManager.GenerateRandomAssemblyName(BuildManager.AppBrowserCapAssemblyNamePrefix));
bpc.SetBuildProviders(new SingleObjectCollection(buildProvider));
CompilerResults results = bpc.PerformBuild();
Assembly assembly = results.CompiledAssembly;
// Get the type we want from the assembly
Type t = assembly.GetType(
BaseCodeDomTreeGenerator.defaultNamespace + "." + ApplicationBrowserCapabilitiesCodeGenerator.FactoryTypeName);
// Cache it for next time
result = new BuildResultCompiledType(t);
result.VirtualPath = AppBrowsersVirtualDir;
result.AddVirtualPathDependencies(browserFileDependenciesList);
BuildManager.CacheBuildResult(browerCapabilitiesCacheKey, result, utcStart);
}
}
}
}
finally {
CodeAccessPermission.RevertAssert();
}
// Simply return the global factory type.
if (result == null)
return _browserCapabilitiesFactoryBaseType;
// Return the compiled type
return ((BuildResultCompiledType)result).ResultType;
}
[SuppressMessage("Microsoft.Security", "CA2122:DoNotIndirectlyExposeMethodsWithLinkDemands",
Justification="Warning was suppressed for previous version of API (different overload) in FxCop project file.")]
private static bool AddBrowserFilesToList(
VirtualDirectory directory, IList list, bool doRecurse) {
bool hasCustomCaps = false;
foreach (VirtualFileBase fileBase in directory.Children) {
// Recursive into subdirectories.
if (fileBase.IsDirectory) {
if (doRecurse) {
AddBrowserFilesToList((VirtualDirectory)fileBase, list, true);
}
hasCustomCaps = true;
continue;
}
string extension = Path.GetExtension(fileBase.Name);
if (StringUtil.EqualsIgnoreCase(extension, ".browser")) {
list.Add(fileBase.VirtualPath);
}
}
return hasCustomCaps;
}
}
internal class ApplicationBrowserCapabilitiesCodeGenerator : BrowserCapabilitiesCodeGenerator {
internal const string FactoryTypeName = "ApplicationBrowserCapabilitiesFactory";
private OrderedDictionary _browserOverrides;
private OrderedDictionary _defaultBrowserOverrides;
private BrowserCapabilitiesFactoryBase _baseInstance;
private BuildProvider _buildProvider;
internal ApplicationBrowserCapabilitiesCodeGenerator(BuildProvider buildProvider) {
_browserOverrides = new OrderedDictionary();
_defaultBrowserOverrides = new OrderedDictionary();
_buildProvider = buildProvider;
}
internal override bool GenerateOverrides { get { return false; } }
internal override string TypeName {
get {
return FactoryTypeName;
}
}
public override void Create() {
throw new NotSupportedException();
}
private static void AddStringToHashtable(OrderedDictionary table, object key, String content, bool before) {
ArrayList list = (ArrayList)table[key];
if (list == null) {
list = new ArrayList(1);
table[key] = list;
}
if (before) {
list.Insert(0, content);
}
else {
list.Add(content);
}
}
private static string GetFirstItemFromKey(OrderedDictionary table, object key) {
ArrayList list = (ArrayList)table[key];
if (list != null && list.Count > 0) {
return list[0] as String;
}
return null;
}
internal override void HandleUnRecognizedParentElement(BrowserDefinition bd, bool isDefault) {
// Use the valid type name so we can find the corresponding parent node.
String parentName = bd.ParentName;
int hashKey = bd.GetType().GetHashCode() ^ parentName.GetHashCode();
// Add the refID in front of the list so they gets to be called first.
if (isDefault) {
AddStringToHashtable(_defaultBrowserOverrides, hashKey, bd.Name, bd.IsRefID);
} else {
AddStringToHashtable(_browserOverrides, hashKey, bd.Name, bd.IsRefID);
}
}
//generate the code from the parsed BrowserDefinitionTree
//compile it, and install it in the gac
internal void GenerateCode(AssemblyBuilder assemblyBuilder) {
ProcessBrowserFiles(true /*useVirtualPath*/, BrowserCapabilitiesCompiler.AppBrowsersVirtualDir.VirtualPathString);
ProcessCustomBrowserFiles(true /*useVirtualPath*/, BrowserCapabilitiesCompiler.AppBrowsersVirtualDir.VirtualPathString);
CodeCompileUnit ccu = new CodeCompileUnit();
Debug.Assert(BrowserTree != null);
ArrayList customTreeRoots = new ArrayList();
for (int i = 0; i < CustomTreeNames.Count; i++) {
customTreeRoots.Add((BrowserDefinition)(((BrowserTree)CustomTreeList[i])[CustomTreeNames[i]]));
}
// namespace ASP
CodeNamespace cnamespace = new CodeNamespace(BaseCodeDomTreeGenerator.defaultNamespace);
//GEN: using System;
cnamespace.Imports.Add(new CodeNamespaceImport("System"));
//GEN: using System.Web;
cnamespace.Imports.Add(new CodeNamespaceImport("System.Web"));
//GEN: using System.Web.Configuration;
cnamespace.Imports.Add(new CodeNamespaceImport("System.Web.Configuration"));
//GEN: using System.Reflection;
cnamespace.Imports.Add(new CodeNamespaceImport("System.Reflection"));
//GEN: class BrowserCapabilitiesFactory
ccu.Namespaces.Add(cnamespace);
Type baseType = BrowserCapabilitiesCompiler.GetBrowserCapabilitiesFactoryBaseType();
CodeTypeDeclaration factoryType = new CodeTypeDeclaration();
factoryType.Attributes = MemberAttributes.Private;
factoryType.IsClass = true;
factoryType.Name = TypeName;
factoryType.BaseTypes.Add(new CodeTypeReference(baseType));
cnamespace.Types.Add(factoryType);
BindingFlags flags = BindingFlags.IgnoreCase | BindingFlags.Instance | BindingFlags.NonPublic;
BrowserDefinition bd = null;
//GEN: protected override object ConfigureBrowserCapabilities(NameValueCollection headers, HttpBrowserCapabilities browserCaps)
CodeMemberMethod method = new CodeMemberMethod();
method.Attributes = MemberAttributes.Override | MemberAttributes.Public;
method.ReturnType = new CodeTypeReference(typeof(void));
method.Name = "ConfigureCustomCapabilities";
CodeParameterDeclarationExpression cpde = new CodeParameterDeclarationExpression(typeof(NameValueCollection), "headers");
method.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(HttpBrowserCapabilities), "browserCaps");
method.Parameters.Add(cpde);
factoryType.Members.Add(method);
for (int i = 0; i < customTreeRoots.Count; i++) {
GenerateSingleProcessCall((BrowserDefinition)customTreeRoots[i], method);
}
foreach (DictionaryEntry entry in _browserOverrides) {
object key = entry.Key;
BrowserDefinition firstBrowserDefinition = (BrowserDefinition)BrowserTree[GetFirstItemFromKey(_browserOverrides, key)];
string parentName = firstBrowserDefinition.ParentName;
//
if ((baseType.GetMethod(parentName + "ProcessBrowsers", flags) == null) ||
(baseType.GetMethod(parentName + "ProcessGateways", flags) == null)) {
String parentID = firstBrowserDefinition.ParentID;
if (firstBrowserDefinition != null) {
throw new ConfigurationErrorsException(SR.GetString(SR.Browser_parentID_Not_Found, parentID), firstBrowserDefinition.XmlNode);
} else {
throw new ConfigurationErrorsException(SR.GetString(SR.Browser_parentID_Not_Found, parentID));
}
}
bool isBrowserDefinition = true;
if (firstBrowserDefinition is GatewayDefinition) {
isBrowserDefinition = false;
}
//GenerateMethodsToOverrideBrowsers
//Gen: protected override void Xxx_ProcessChildBrowsers(bool ignoreApplicationBrowsers, MNameValueCollection headers, HttpBrowserCapabilities browserCaps) ;
string methodName = parentName + (isBrowserDefinition ? "ProcessBrowsers" : "ProcessGateways");
CodeMemberMethod cmm = new CodeMemberMethod();
cmm.Name = methodName;
cmm.ReturnType = new CodeTypeReference(typeof(void));
cmm.Attributes = MemberAttributes.Family | MemberAttributes.Override;
if (isBrowserDefinition) {
cpde = new CodeParameterDeclarationExpression(typeof(bool), BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Parameters.Add(cpde);
}
cpde = new CodeParameterDeclarationExpression(typeof(NameValueCollection), "headers");
cmm.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(HttpBrowserCapabilities), browserCapsVariable);
cmm.Parameters.Add(cpde);
factoryType.Members.Add(cmm);
ArrayList overrides = (ArrayList)_browserOverrides[key];
CodeStatementCollection statements = cmm.Statements;
bool ignoreApplicationBrowsersVarRefGenerated = false;
foreach (string browserID in overrides) {
bd = (BrowserDefinition)BrowserTree[browserID];
if (bd is GatewayDefinition || bd.IsRefID) {
GenerateSingleProcessCall(bd, cmm);
}
else {
if (!ignoreApplicationBrowsersVarRefGenerated) {
Debug.Assert(isBrowserDefinition);
// Gen: if (ignoreApplicationBrowsers) {
// }
// else {
// ...
// }
CodeConditionStatement istatement = new CodeConditionStatement();
istatement.Condition = new CodeVariableReferenceExpression(BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Statements.Add(istatement);
statements = istatement.FalseStatements;
ignoreApplicationBrowsersVarRefGenerated = true;
}
statements = GenerateTrackedSingleProcessCall(statements, bd, cmm);
if (_baseInstance == null) {
_baseInstance = (BrowserCapabilitiesFactoryBase)Activator.CreateInstance(baseType);
}
int parentDepth = (int)((Triplet)_baseInstance.InternalGetBrowserElements()[parentName]).Third;
AddBrowserToCollectionRecursive(bd, parentDepth + 1);
}
}
}
foreach (DictionaryEntry entry in _defaultBrowserOverrides) {
object key = entry.Key;
BrowserDefinition firstDefaultBrowserDefinition = (BrowserDefinition)DefaultTree[GetFirstItemFromKey(_defaultBrowserOverrides, key)];
string parentName = firstDefaultBrowserDefinition.ParentName;
if (baseType.GetMethod("Default" + parentName + "ProcessBrowsers", flags) == null) {
String parentID = firstDefaultBrowserDefinition.ParentID;
if (firstDefaultBrowserDefinition != null) {
throw new ConfigurationErrorsException(SR.GetString(SR.DefaultBrowser_parentID_Not_Found, parentID), firstDefaultBrowserDefinition.XmlNode);
}
}
string methodName = "Default" + parentName + "ProcessBrowsers";
CodeMemberMethod cmm = new CodeMemberMethod();
cmm.Name = methodName;
cmm.ReturnType = new CodeTypeReference(typeof(void));
cmm.Attributes = MemberAttributes.Family | MemberAttributes.Override;
cpde = new CodeParameterDeclarationExpression(typeof(bool), BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(NameValueCollection), "headers");
cmm.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(HttpBrowserCapabilities), browserCapsVariable);
cmm.Parameters.Add(cpde);
factoryType.Members.Add(cmm);
ArrayList overrides = (ArrayList)_defaultBrowserOverrides[key];
CodeConditionStatement istatement = new CodeConditionStatement();
istatement.Condition = new CodeVariableReferenceExpression(BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Statements.Add(istatement);
CodeStatementCollection statements = istatement.FalseStatements;
foreach(string browserID in overrides) {
bd = (BrowserDefinition)DefaultTree[browserID];
Debug.Assert(!(bd is GatewayDefinition));
if(bd.IsRefID) {
GenerateSingleProcessCall(bd, cmm, "Default");
}
else {
statements = GenerateTrackedSingleProcessCall(statements, bd, cmm, "Default");
}
}
}
// Generate process method for the browser elements
foreach (DictionaryEntry entry in BrowserTree) {
bd = entry.Value as BrowserDefinition;
Debug.Assert(bd != null);
GenerateProcessMethod(bd, factoryType);
}
for (int i = 0; i < customTreeRoots.Count; i++) {
foreach (DictionaryEntry entry in (BrowserTree)CustomTreeList[i]) {
bd = entry.Value as BrowserDefinition;
Debug.Assert(bd != null);
GenerateProcessMethod(bd, factoryType);
}
}
// Generate process method for the default browser elements
foreach (DictionaryEntry entry in DefaultTree) {
bd = entry.Value as BrowserDefinition;
Debug.Assert(bd != null);
GenerateProcessMethod(bd, factoryType, "Default");
}
GenerateOverrideMatchedHeaders(factoryType);
GenerateOverrideBrowserElements(factoryType);
Assembly assembly = BrowserCapabilitiesCompiler.GetBrowserCapabilitiesFactoryBaseType().Assembly;
assemblyBuilder.AddAssemblyReference(assembly, ccu);
assemblyBuilder.AddCodeCompileUnit(_buildProvider, ccu);
}
internal override void ProcessBrowserNode(XmlNode node, BrowserTree browserTree) {
if (node.Name == "defaultBrowser") {
throw new ConfigurationErrorsException(SR.GetString(SR.Browser_Not_Allowed_InAppLevel, node.Name), node);
}
base.ProcessBrowserNode(node, browserTree);
}
}
internal class ApplicationBrowserCapabilitiesBuildProvider : BuildProvider {
private ApplicationBrowserCapabilitiesCodeGenerator _codeGenerator;
internal ApplicationBrowserCapabilitiesBuildProvider() {
_codeGenerator = new ApplicationBrowserCapabilitiesCodeGenerator(this);
}
internal void AddFile(string virtualPath) {
String filePath = HostingEnvironment.MapPathInternal(virtualPath);
_codeGenerator.AddFile(filePath);
}
public override void GenerateCode(AssemblyBuilder assemblyBuilder) {
_codeGenerator.GenerateCode(assemblyBuilder);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.Compilation {
using System;
using System.CodeDom;
using System.Collections;
using System.Collections.Specialized;
using System.Configuration;
using System.CodeDom.Compiler;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Web.Configuration;
using System.Web.Hosting;
using System.Web.Util;
using System.Web.UI;
using System.Xml;
static class BrowserCapabilitiesCompiler {
internal static readonly VirtualPath AppBrowsersVirtualDir =
HttpRuntime.AppDomainAppVirtualPathObject.SimpleCombineWithDir(HttpRuntime.BrowsersDirectoryName);
private const string browerCapabilitiesTypeName = "BrowserCapabilities";
private const string browerCapabilitiesCacheKey = "__browserCapabilitiesCompiler";
private static Type _browserCapabilitiesFactoryBaseType;
private static Type _browserCapabilitiesFactoryType;
private static BrowserCapabilitiesFactoryBase _browserCapabilitiesFactoryBaseInstance;
private static object _lockObject = new object();
static BrowserCapabilitiesCompiler() {
Assembly assembly = null;
String publicKeyToken = BrowserCapabilitiesCodeGenerator.BrowserCapAssemblyPublicKeyToken;
// If the token file cannot be found, do not load the assembly.
if (publicKeyToken != null) {
try {
assembly = Assembly.Load("ASP.BrowserCapsFactory, Version=" + ThisAssembly.Version + ", Culture=neutral, PublicKeyToken=" + publicKeyToken);
}
catch (FileNotFoundException) {
}
}
// fallback when assembly cannot be found.
if((assembly == null) || (!(assembly.GlobalAssemblyCache))) {
_browserCapabilitiesFactoryBaseType = typeof(System.Web.Configuration.BrowserCapabilitiesFactory);
}
else {
_browserCapabilitiesFactoryBaseType = assembly.GetType("ASP.BrowserCapabilitiesFactory", true);
}
}
internal static BrowserCapabilitiesFactoryBase BrowserCapabilitiesFactory {
get {
if(_browserCapabilitiesFactoryBaseInstance != null) {
return _browserCapabilitiesFactoryBaseInstance;
}
lock(_lockObject) {
if(_browserCapabilitiesFactoryBaseInstance == null) {
_browserCapabilitiesFactoryType = GetBrowserCapabilitiesType();
if(_browserCapabilitiesFactoryType != null) {
_browserCapabilitiesFactoryBaseInstance =
(BrowserCapabilitiesFactoryBase)Activator.CreateInstance(_browserCapabilitiesFactoryType);
}
}
}
return _browserCapabilitiesFactoryBaseInstance;
}
}
internal static Type GetBrowserCapabilitiesFactoryBaseType() {
return _browserCapabilitiesFactoryBaseType;
}
internal static Type GetBrowserCapabilitiesType() {
//Need to assert here to check directories and files
InternalSecurityPermissions.Unrestricted.Assert();
BuildResult result = null;
try {
// Try the cache first, and if it's not there, compile it
result = BuildManager.GetBuildResultFromCache(browerCapabilitiesCacheKey);
if (result == null) {
DateTime utcStart = DateTime.UtcNow;
VirtualDirectory directory = AppBrowsersVirtualDir.GetDirectory();
// first try if app browser dir exists
string physicalDir = HostingEnvironment.MapPathInternal(AppBrowsersVirtualDir);
/* DevDivBugs 173531
* For the App_Browsers scenario, we need to cache the generated browser caps processing
* code. We need to add path dependency on all files so that changes to them will
* invalidate the cache entry and cause recompilation. */
if (directory != null && Directory.Exists(physicalDir)) {
ArrayList browserFileList = new ArrayList();
ArrayList browserFileDependenciesList = new ArrayList();
bool hasCustomCaps = AddBrowserFilesToList(directory, browserFileList, false);
if (hasCustomCaps) {
AddBrowserFilesToList(directory, browserFileDependenciesList, true);
}
else {
browserFileDependenciesList = browserFileList;
}
if (browserFileDependenciesList.Count > 0) {
ApplicationBrowserCapabilitiesBuildProvider buildProvider = new ApplicationBrowserCapabilitiesBuildProvider();
foreach (string virtualPath in browserFileList) {
buildProvider.AddFile(virtualPath);
}
BuildProvidersCompiler bpc = new BuildProvidersCompiler(null /*configPath*/,
BuildManager.GenerateRandomAssemblyName(BuildManager.AppBrowserCapAssemblyNamePrefix));
bpc.SetBuildProviders(new SingleObjectCollection(buildProvider));
CompilerResults results = bpc.PerformBuild();
Assembly assembly = results.CompiledAssembly;
// Get the type we want from the assembly
Type t = assembly.GetType(
BaseCodeDomTreeGenerator.defaultNamespace + "." + ApplicationBrowserCapabilitiesCodeGenerator.FactoryTypeName);
// Cache it for next time
result = new BuildResultCompiledType(t);
result.VirtualPath = AppBrowsersVirtualDir;
result.AddVirtualPathDependencies(browserFileDependenciesList);
BuildManager.CacheBuildResult(browerCapabilitiesCacheKey, result, utcStart);
}
}
}
}
finally {
CodeAccessPermission.RevertAssert();
}
// Simply return the global factory type.
if (result == null)
return _browserCapabilitiesFactoryBaseType;
// Return the compiled type
return ((BuildResultCompiledType)result).ResultType;
}
[SuppressMessage("Microsoft.Security", "CA2122:DoNotIndirectlyExposeMethodsWithLinkDemands",
Justification="Warning was suppressed for previous version of API (different overload) in FxCop project file.")]
private static bool AddBrowserFilesToList(
VirtualDirectory directory, IList list, bool doRecurse) {
bool hasCustomCaps = false;
foreach (VirtualFileBase fileBase in directory.Children) {
// Recursive into subdirectories.
if (fileBase.IsDirectory) {
if (doRecurse) {
AddBrowserFilesToList((VirtualDirectory)fileBase, list, true);
}
hasCustomCaps = true;
continue;
}
string extension = Path.GetExtension(fileBase.Name);
if (StringUtil.EqualsIgnoreCase(extension, ".browser")) {
list.Add(fileBase.VirtualPath);
}
}
return hasCustomCaps;
}
}
internal class ApplicationBrowserCapabilitiesCodeGenerator : BrowserCapabilitiesCodeGenerator {
internal const string FactoryTypeName = "ApplicationBrowserCapabilitiesFactory";
private OrderedDictionary _browserOverrides;
private OrderedDictionary _defaultBrowserOverrides;
private BrowserCapabilitiesFactoryBase _baseInstance;
private BuildProvider _buildProvider;
internal ApplicationBrowserCapabilitiesCodeGenerator(BuildProvider buildProvider) {
_browserOverrides = new OrderedDictionary();
_defaultBrowserOverrides = new OrderedDictionary();
_buildProvider = buildProvider;
}
internal override bool GenerateOverrides { get { return false; } }
internal override string TypeName {
get {
return FactoryTypeName;
}
}
public override void Create() {
throw new NotSupportedException();
}
private static void AddStringToHashtable(OrderedDictionary table, object key, String content, bool before) {
ArrayList list = (ArrayList)table[key];
if (list == null) {
list = new ArrayList(1);
table[key] = list;
}
if (before) {
list.Insert(0, content);
}
else {
list.Add(content);
}
}
private static string GetFirstItemFromKey(OrderedDictionary table, object key) {
ArrayList list = (ArrayList)table[key];
if (list != null && list.Count > 0) {
return list[0] as String;
}
return null;
}
internal override void HandleUnRecognizedParentElement(BrowserDefinition bd, bool isDefault) {
// Use the valid type name so we can find the corresponding parent node.
String parentName = bd.ParentName;
int hashKey = bd.GetType().GetHashCode() ^ parentName.GetHashCode();
// Add the refID in front of the list so they gets to be called first.
if (isDefault) {
AddStringToHashtable(_defaultBrowserOverrides, hashKey, bd.Name, bd.IsRefID);
} else {
AddStringToHashtable(_browserOverrides, hashKey, bd.Name, bd.IsRefID);
}
}
//generate the code from the parsed BrowserDefinitionTree
//compile it, and install it in the gac
internal void GenerateCode(AssemblyBuilder assemblyBuilder) {
ProcessBrowserFiles(true /*useVirtualPath*/, BrowserCapabilitiesCompiler.AppBrowsersVirtualDir.VirtualPathString);
ProcessCustomBrowserFiles(true /*useVirtualPath*/, BrowserCapabilitiesCompiler.AppBrowsersVirtualDir.VirtualPathString);
CodeCompileUnit ccu = new CodeCompileUnit();
Debug.Assert(BrowserTree != null);
ArrayList customTreeRoots = new ArrayList();
for (int i = 0; i < CustomTreeNames.Count; i++) {
customTreeRoots.Add((BrowserDefinition)(((BrowserTree)CustomTreeList[i])[CustomTreeNames[i]]));
}
// namespace ASP
CodeNamespace cnamespace = new CodeNamespace(BaseCodeDomTreeGenerator.defaultNamespace);
//GEN: using System;
cnamespace.Imports.Add(new CodeNamespaceImport("System"));
//GEN: using System.Web;
cnamespace.Imports.Add(new CodeNamespaceImport("System.Web"));
//GEN: using System.Web.Configuration;
cnamespace.Imports.Add(new CodeNamespaceImport("System.Web.Configuration"));
//GEN: using System.Reflection;
cnamespace.Imports.Add(new CodeNamespaceImport("System.Reflection"));
//GEN: class BrowserCapabilitiesFactory
ccu.Namespaces.Add(cnamespace);
Type baseType = BrowserCapabilitiesCompiler.GetBrowserCapabilitiesFactoryBaseType();
CodeTypeDeclaration factoryType = new CodeTypeDeclaration();
factoryType.Attributes = MemberAttributes.Private;
factoryType.IsClass = true;
factoryType.Name = TypeName;
factoryType.BaseTypes.Add(new CodeTypeReference(baseType));
cnamespace.Types.Add(factoryType);
BindingFlags flags = BindingFlags.IgnoreCase | BindingFlags.Instance | BindingFlags.NonPublic;
BrowserDefinition bd = null;
//GEN: protected override object ConfigureBrowserCapabilities(NameValueCollection headers, HttpBrowserCapabilities browserCaps)
CodeMemberMethod method = new CodeMemberMethod();
method.Attributes = MemberAttributes.Override | MemberAttributes.Public;
method.ReturnType = new CodeTypeReference(typeof(void));
method.Name = "ConfigureCustomCapabilities";
CodeParameterDeclarationExpression cpde = new CodeParameterDeclarationExpression(typeof(NameValueCollection), "headers");
method.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(HttpBrowserCapabilities), "browserCaps");
method.Parameters.Add(cpde);
factoryType.Members.Add(method);
for (int i = 0; i < customTreeRoots.Count; i++) {
GenerateSingleProcessCall((BrowserDefinition)customTreeRoots[i], method);
}
foreach (DictionaryEntry entry in _browserOverrides) {
object key = entry.Key;
BrowserDefinition firstBrowserDefinition = (BrowserDefinition)BrowserTree[GetFirstItemFromKey(_browserOverrides, key)];
string parentName = firstBrowserDefinition.ParentName;
//
if ((baseType.GetMethod(parentName + "ProcessBrowsers", flags) == null) ||
(baseType.GetMethod(parentName + "ProcessGateways", flags) == null)) {
String parentID = firstBrowserDefinition.ParentID;
if (firstBrowserDefinition != null) {
throw new ConfigurationErrorsException(SR.GetString(SR.Browser_parentID_Not_Found, parentID), firstBrowserDefinition.XmlNode);
} else {
throw new ConfigurationErrorsException(SR.GetString(SR.Browser_parentID_Not_Found, parentID));
}
}
bool isBrowserDefinition = true;
if (firstBrowserDefinition is GatewayDefinition) {
isBrowserDefinition = false;
}
//GenerateMethodsToOverrideBrowsers
//Gen: protected override void Xxx_ProcessChildBrowsers(bool ignoreApplicationBrowsers, MNameValueCollection headers, HttpBrowserCapabilities browserCaps) ;
string methodName = parentName + (isBrowserDefinition ? "ProcessBrowsers" : "ProcessGateways");
CodeMemberMethod cmm = new CodeMemberMethod();
cmm.Name = methodName;
cmm.ReturnType = new CodeTypeReference(typeof(void));
cmm.Attributes = MemberAttributes.Family | MemberAttributes.Override;
if (isBrowserDefinition) {
cpde = new CodeParameterDeclarationExpression(typeof(bool), BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Parameters.Add(cpde);
}
cpde = new CodeParameterDeclarationExpression(typeof(NameValueCollection), "headers");
cmm.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(HttpBrowserCapabilities), browserCapsVariable);
cmm.Parameters.Add(cpde);
factoryType.Members.Add(cmm);
ArrayList overrides = (ArrayList)_browserOverrides[key];
CodeStatementCollection statements = cmm.Statements;
bool ignoreApplicationBrowsersVarRefGenerated = false;
foreach (string browserID in overrides) {
bd = (BrowserDefinition)BrowserTree[browserID];
if (bd is GatewayDefinition || bd.IsRefID) {
GenerateSingleProcessCall(bd, cmm);
}
else {
if (!ignoreApplicationBrowsersVarRefGenerated) {
Debug.Assert(isBrowserDefinition);
// Gen: if (ignoreApplicationBrowsers) {
// }
// else {
// ...
// }
CodeConditionStatement istatement = new CodeConditionStatement();
istatement.Condition = new CodeVariableReferenceExpression(BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Statements.Add(istatement);
statements = istatement.FalseStatements;
ignoreApplicationBrowsersVarRefGenerated = true;
}
statements = GenerateTrackedSingleProcessCall(statements, bd, cmm);
if (_baseInstance == null) {
_baseInstance = (BrowserCapabilitiesFactoryBase)Activator.CreateInstance(baseType);
}
int parentDepth = (int)((Triplet)_baseInstance.InternalGetBrowserElements()[parentName]).Third;
AddBrowserToCollectionRecursive(bd, parentDepth + 1);
}
}
}
foreach (DictionaryEntry entry in _defaultBrowserOverrides) {
object key = entry.Key;
BrowserDefinition firstDefaultBrowserDefinition = (BrowserDefinition)DefaultTree[GetFirstItemFromKey(_defaultBrowserOverrides, key)];
string parentName = firstDefaultBrowserDefinition.ParentName;
if (baseType.GetMethod("Default" + parentName + "ProcessBrowsers", flags) == null) {
String parentID = firstDefaultBrowserDefinition.ParentID;
if (firstDefaultBrowserDefinition != null) {
throw new ConfigurationErrorsException(SR.GetString(SR.DefaultBrowser_parentID_Not_Found, parentID), firstDefaultBrowserDefinition.XmlNode);
}
}
string methodName = "Default" + parentName + "ProcessBrowsers";
CodeMemberMethod cmm = new CodeMemberMethod();
cmm.Name = methodName;
cmm.ReturnType = new CodeTypeReference(typeof(void));
cmm.Attributes = MemberAttributes.Family | MemberAttributes.Override;
cpde = new CodeParameterDeclarationExpression(typeof(bool), BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(NameValueCollection), "headers");
cmm.Parameters.Add(cpde);
cpde = new CodeParameterDeclarationExpression(typeof(HttpBrowserCapabilities), browserCapsVariable);
cmm.Parameters.Add(cpde);
factoryType.Members.Add(cmm);
ArrayList overrides = (ArrayList)_defaultBrowserOverrides[key];
CodeConditionStatement istatement = new CodeConditionStatement();
istatement.Condition = new CodeVariableReferenceExpression(BrowserCapabilitiesCodeGenerator.IgnoreApplicationBrowserVariableName);
cmm.Statements.Add(istatement);
CodeStatementCollection statements = istatement.FalseStatements;
foreach(string browserID in overrides) {
bd = (BrowserDefinition)DefaultTree[browserID];
Debug.Assert(!(bd is GatewayDefinition));
if(bd.IsRefID) {
GenerateSingleProcessCall(bd, cmm, "Default");
}
else {
statements = GenerateTrackedSingleProcessCall(statements, bd, cmm, "Default");
}
}
}
// Generate process method for the browser elements
foreach (DictionaryEntry entry in BrowserTree) {
bd = entry.Value as BrowserDefinition;
Debug.Assert(bd != null);
GenerateProcessMethod(bd, factoryType);
}
for (int i = 0; i < customTreeRoots.Count; i++) {
foreach (DictionaryEntry entry in (BrowserTree)CustomTreeList[i]) {
bd = entry.Value as BrowserDefinition;
Debug.Assert(bd != null);
GenerateProcessMethod(bd, factoryType);
}
}
// Generate process method for the default browser elements
foreach (DictionaryEntry entry in DefaultTree) {
bd = entry.Value as BrowserDefinition;
Debug.Assert(bd != null);
GenerateProcessMethod(bd, factoryType, "Default");
}
GenerateOverrideMatchedHeaders(factoryType);
GenerateOverrideBrowserElements(factoryType);
Assembly assembly = BrowserCapabilitiesCompiler.GetBrowserCapabilitiesFactoryBaseType().Assembly;
assemblyBuilder.AddAssemblyReference(assembly, ccu);
assemblyBuilder.AddCodeCompileUnit(_buildProvider, ccu);
}
internal override void ProcessBrowserNode(XmlNode node, BrowserTree browserTree) {
if (node.Name == "defaultBrowser") {
throw new ConfigurationErrorsException(SR.GetString(SR.Browser_Not_Allowed_InAppLevel, node.Name), node);
}
base.ProcessBrowserNode(node, browserTree);
}
}
internal class ApplicationBrowserCapabilitiesBuildProvider : BuildProvider {
private ApplicationBrowserCapabilitiesCodeGenerator _codeGenerator;
internal ApplicationBrowserCapabilitiesBuildProvider() {
_codeGenerator = new ApplicationBrowserCapabilitiesCodeGenerator(this);
}
internal void AddFile(string virtualPath) {
String filePath = HostingEnvironment.MapPathInternal(virtualPath);
_codeGenerator.AddFile(filePath);
}
public override void GenerateCode(AssemblyBuilder assemblyBuilder) {
_codeGenerator.GenerateCode(assemblyBuilder);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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