Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / xsp / System / Web / UI / BaseTemplateParser.cs / 1 / BaseTemplateParser.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
* Implements the ASP.NET template parser
*
* Copyright (c) 1998 Microsoft Corporation
*/
namespace System.Web.UI {
using System.Text;
using System;
using System.IO;
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Reflection;
using System.Configuration;
using System.Web.Caching;
using System.Web.Util;
using System.Web.Hosting;
using System.Web.Compilation;
using HttpException = System.Web.HttpException;
using System.Text.RegularExpressions;
using System.Globalization;
using System.Security.Permissions;
/*
* Parser for Template Files (TemplateControls and PageTheme)
*/
///
/// [To be supplied.]
///
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public abstract class BaseTemplateParser : TemplateParser {
private const string _sourceString = "src";
private const string _namespaceString = "namespace";
private const string _tagnameString = "tagname";
internal Type GetDesignTimeUserControlType(string tagPrefix, string tagName) {
Debug.Assert(FInDesigner);
Type type = typeof(UserControl);
IDesignerHost host = DesignerHost;
if (host != null) {
IUserControlTypeResolutionService ucTypeResService =
(IUserControlTypeResolutionService)host.GetService(typeof(IUserControlTypeResolutionService));
if (ucTypeResService != null) {
try {
type = ucTypeResService.GetType(tagPrefix, tagName);
}
catch {
}
}
}
return type;
}
/*
* Compile a nested .ascx file (a User Control) and return its Type
*/
protected internal Type GetUserControlType(string virtualPath) {
return GetUserControlType(VirtualPath.Create(virtualPath));
}
internal Type GetUserControlType(VirtualPath virtualPath) {
Type t = GetReferencedType(virtualPath, false /*allowNoCompile*/);
// Fail if it's a no compile uc, since it doesn't have a Type we can use
if (t == null) {
// First, check whether there is a PageParserFilter that can give us a type
if (_pageParserFilter != null)
t = _pageParserFilter.GetNoCompileUserControlType();
if (t == null)
ProcessError(SR.GetString(SR.Cant_use_nocompile_uc, virtualPath));
}
else {
// Make sure it has the correct base type
Util.CheckAssignableType(typeof(UserControl), t);
}
return t;
}
/*
* Compile a .aspx/.ascx file and return its Type
*/
protected Type GetReferencedType(string virtualPath) {
return GetReferencedType(VirtualPath.Create(virtualPath));
}
internal Type GetReferencedType(VirtualPath virtualPath) {
return GetReferencedType(virtualPath, true /*allowNoCompile*/);
}
internal Type GetReferencedType(VirtualPath virtualPath, bool allowNoCompile) {
virtualPath = ResolveVirtualPath(virtualPath);
// If we have a page parser filter, make sure the reference is allowed
if (_pageParserFilter != null && !_pageParserFilter.AllowVirtualReference(CompConfig, virtualPath)) {
ProcessError(SR.GetString(SR.Reference_not_allowed, virtualPath));
}
BuildResult result = null;
Type t = null;
try {
result = BuildManager.GetVPathBuildResult(virtualPath);
}
catch (HttpCompileException e) {
// Add the path depdencies properly so we know when
// to invalidate the cached result.
if (e.VirtualPathDependencies != null) {
foreach (string vPath in e.VirtualPathDependencies) {
AddSourceDependency(VirtualPath.Create(vPath));
}
}
throw;
}
catch {
// Add the virtualPath to the dependency so that
// we know when to check again. This could happen if the
// virtualPath points to a file not created yet.
// This only affects designtime code path since we do want to return
// partial result even if there is an error, and that result is
// cached. VSWhidbey 372585
if (IgnoreParseErrors) {
AddSourceDependency(virtualPath);
}
throw;
}
// Is it a no-compile page/uc
BuildResultNoCompileTemplateControl noCompileResult = result as BuildResultNoCompileTemplateControl;
if (noCompileResult != null) {
// If no-compile is not acceptable, return null
if (!allowNoCompile)
return null;
// In the no-compile case, use the base type, since we don't compile a type
t = noCompileResult.BaseType;
}
else if (result is BuildResultCompiledType) {
BuildResultCompiledType compiledResult = (BuildResultCompiledType) result;
Debug.Assert(compiledResult != null);
t = compiledResult.ResultType;
}
else {
throw new HttpException(SR.GetString(SR.Invalid_typeless_reference, _sourceString));
}
Debug.Assert(t != null);
// Add a dependency on the Type
AddTypeDependency(t);
// Add a dependency on the BuildResult
AddBuildResultDependency(result);
return t;
}
internal override void ProcessDirective(string directiveName, IDictionary directive) {
if (StringUtil.EqualsIgnoreCase(directiveName, "register")) {
// Register directive
// Get the tagprefix, which is required
string tagPrefix = Util.GetAndRemoveNonEmptyIdentifierAttribute(directive,
"tagprefix", true /*required*/);
string tagName = Util.GetAndRemoveNonEmptyIdentifierAttribute(directive,
_tagnameString, false /*required*/);
VirtualPath src = Util.GetAndRemoveVirtualPathAttribute(directive,
_sourceString, false /*required*/);
string ns = Util.GetAndRemoveNonEmptyNoSpaceAttribute(directive,
_namespaceString, false /*required*/);
// An Assembly can optionally be specified (ASURT 61326/VSWhidbey 87050)
string assemblyName = Util.GetAndRemoveNonEmptyAttribute(directive, "assembly",
false /*required*/);
RegisterDirectiveEntry registerEntry;
if (tagName != null) {
// It's a user control registration
// 'src' is required
if (src == null) {
throw new HttpException(SR.GetString(SR.Missing_attr, _sourceString));
}
// 'namespace' is not allowed
if (ns != null) {
throw new HttpException(
SR.GetString(SR.Invalid_attr, _namespaceString, "tagname"));
}
// 'assembly' is not allowed
if (assemblyName != null) {
throw new HttpException(
SR.GetString(SR.Invalid_attr, "assembly", "tagname"));
}
UserControlRegisterEntry ucRegisterEntry = new UserControlRegisterEntry(tagPrefix, tagName);
ucRegisterEntry.UserControlSource = src;
registerEntry = ucRegisterEntry;
TypeMapper.ProcessUserControlRegistration(ucRegisterEntry);
}
else if (src != null) {
// It's missing the tagname attribute.
throw new HttpException(SR.GetString(SR.Missing_attr, _tagnameString));
}
else {
// It's a namespace prefix registration
// 'namespace' is required
if (ns == null) {
throw new HttpException(SR.GetString(SR.Missing_attr, _namespaceString));
}
TagNamespaceRegisterEntry nsRegisterEntry = new TagNamespaceRegisterEntry(tagPrefix, ns, assemblyName);
registerEntry = nsRegisterEntry;
TypeMapper.ProcessTagNamespaceRegistration(nsRegisterEntry);
}
registerEntry.Line = _lineNumber;
registerEntry.VirtualPath = CurrentVirtualPathString;
// If there are some attributes left, fail
Util.CheckUnknownDirectiveAttributes(directiveName, directive);
}
else {
base.ProcessDirective(directiveName, directive);
}
}
}
/*
* Entry representing a register directive
* e.g. <%@ Register tagprefix="tagprefix" Namespace="namespace" Assembly="assembly" %> OR
* e.g. <%@ Register tagprefix="tagprefix" Tagname="tagname" Src="pathname" %>
*/
internal abstract class RegisterDirectiveEntry: SourceLineInfo {
internal RegisterDirectiveEntry(string tagPrefix) {
_tagPrefix = tagPrefix;
}
private string _tagPrefix;
internal string TagPrefix {
get { return _tagPrefix;}
}
}
/*
* Entry representing the registration of a tag namespace
* e.g. <%@ Register tagprefix="tagprefix" Namespace="namespace" Assembly="assembly" %>
*/
internal class TagNamespaceRegisterEntry: RegisterDirectiveEntry {
internal TagNamespaceRegisterEntry(string tagPrefix, string namespaceName, string assemblyName) : base(tagPrefix) {
_ns = namespaceName;
_assemblyName = assemblyName;
}
private string _ns;
internal string Namespace {
get { return _ns;}
}
private string _assemblyName;
internal string AssemblyName {
get { return _assemblyName;}
}
#if DONT_COMPILE
internal string Key {
get {
return TagPrefix + ":" + _ns + ":" + (_assemblyName == null ? String.Empty : _assemblyName);
}
}
#endif
}
/*
* Entry representing the registration of a user control
* e.g. <%@ Register tagprefix="tagprefix" Tagname="tagname" Src="pathname" %>
*/
internal class UserControlRegisterEntry: RegisterDirectiveEntry {
internal UserControlRegisterEntry(string tagPrefix, string tagName) : base(tagPrefix) {
_tagName = tagName;
}
private string _tagName;
internal string TagName {
get { return _tagName;}
}
private VirtualPath _source;
internal VirtualPath UserControlSource {
get { return _source;}
set { _source = value;}
}
private bool _comesFromConfig;
internal bool ComesFromConfig {
get { return _comesFromConfig;}
set { _comesFromConfig = value;}
}
internal string Key {
get {
return TagPrefix + ":" + _tagName;
}
}
}
internal class TagNamespaceRegisterEntryTable : Hashtable {
public TagNamespaceRegisterEntryTable() : base(StringComparer.OrdinalIgnoreCase) {
}
public override object Clone() {
// We override clone to perform a deep copy of the hashtable contents but a shallow copy of
// the contained arraylist itself
TagNamespaceRegisterEntryTable newTable = new TagNamespaceRegisterEntryTable();
foreach (DictionaryEntry entry in this) {
newTable[entry.Key] = ((ArrayList)entry.Value).Clone();
}
return newTable;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
* Implements the ASP.NET template parser
*
* Copyright (c) 1998 Microsoft Corporation
*/
namespace System.Web.UI {
using System.Text;
using System;
using System.IO;
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Reflection;
using System.Configuration;
using System.Web.Caching;
using System.Web.Util;
using System.Web.Hosting;
using System.Web.Compilation;
using HttpException = System.Web.HttpException;
using System.Text.RegularExpressions;
using System.Globalization;
using System.Security.Permissions;
/*
* Parser for Template Files (TemplateControls and PageTheme)
*/
///
/// [To be supplied.]
///
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public abstract class BaseTemplateParser : TemplateParser {
private const string _sourceString = "src";
private const string _namespaceString = "namespace";
private const string _tagnameString = "tagname";
internal Type GetDesignTimeUserControlType(string tagPrefix, string tagName) {
Debug.Assert(FInDesigner);
Type type = typeof(UserControl);
IDesignerHost host = DesignerHost;
if (host != null) {
IUserControlTypeResolutionService ucTypeResService =
(IUserControlTypeResolutionService)host.GetService(typeof(IUserControlTypeResolutionService));
if (ucTypeResService != null) {
try {
type = ucTypeResService.GetType(tagPrefix, tagName);
}
catch {
}
}
}
return type;
}
/*
* Compile a nested .ascx file (a User Control) and return its Type
*/
protected internal Type GetUserControlType(string virtualPath) {
return GetUserControlType(VirtualPath.Create(virtualPath));
}
internal Type GetUserControlType(VirtualPath virtualPath) {
Type t = GetReferencedType(virtualPath, false /*allowNoCompile*/);
// Fail if it's a no compile uc, since it doesn't have a Type we can use
if (t == null) {
// First, check whether there is a PageParserFilter that can give us a type
if (_pageParserFilter != null)
t = _pageParserFilter.GetNoCompileUserControlType();
if (t == null)
ProcessError(SR.GetString(SR.Cant_use_nocompile_uc, virtualPath));
}
else {
// Make sure it has the correct base type
Util.CheckAssignableType(typeof(UserControl), t);
}
return t;
}
/*
* Compile a .aspx/.ascx file and return its Type
*/
protected Type GetReferencedType(string virtualPath) {
return GetReferencedType(VirtualPath.Create(virtualPath));
}
internal Type GetReferencedType(VirtualPath virtualPath) {
return GetReferencedType(virtualPath, true /*allowNoCompile*/);
}
internal Type GetReferencedType(VirtualPath virtualPath, bool allowNoCompile) {
virtualPath = ResolveVirtualPath(virtualPath);
// If we have a page parser filter, make sure the reference is allowed
if (_pageParserFilter != null && !_pageParserFilter.AllowVirtualReference(CompConfig, virtualPath)) {
ProcessError(SR.GetString(SR.Reference_not_allowed, virtualPath));
}
BuildResult result = null;
Type t = null;
try {
result = BuildManager.GetVPathBuildResult(virtualPath);
}
catch (HttpCompileException e) {
// Add the path depdencies properly so we know when
// to invalidate the cached result.
if (e.VirtualPathDependencies != null) {
foreach (string vPath in e.VirtualPathDependencies) {
AddSourceDependency(VirtualPath.Create(vPath));
}
}
throw;
}
catch {
// Add the virtualPath to the dependency so that
// we know when to check again. This could happen if the
// virtualPath points to a file not created yet.
// This only affects designtime code path since we do want to return
// partial result even if there is an error, and that result is
// cached. VSWhidbey 372585
if (IgnoreParseErrors) {
AddSourceDependency(virtualPath);
}
throw;
}
// Is it a no-compile page/uc
BuildResultNoCompileTemplateControl noCompileResult = result as BuildResultNoCompileTemplateControl;
if (noCompileResult != null) {
// If no-compile is not acceptable, return null
if (!allowNoCompile)
return null;
// In the no-compile case, use the base type, since we don't compile a type
t = noCompileResult.BaseType;
}
else if (result is BuildResultCompiledType) {
BuildResultCompiledType compiledResult = (BuildResultCompiledType) result;
Debug.Assert(compiledResult != null);
t = compiledResult.ResultType;
}
else {
throw new HttpException(SR.GetString(SR.Invalid_typeless_reference, _sourceString));
}
Debug.Assert(t != null);
// Add a dependency on the Type
AddTypeDependency(t);
// Add a dependency on the BuildResult
AddBuildResultDependency(result);
return t;
}
internal override void ProcessDirective(string directiveName, IDictionary directive) {
if (StringUtil.EqualsIgnoreCase(directiveName, "register")) {
// Register directive
// Get the tagprefix, which is required
string tagPrefix = Util.GetAndRemoveNonEmptyIdentifierAttribute(directive,
"tagprefix", true /*required*/);
string tagName = Util.GetAndRemoveNonEmptyIdentifierAttribute(directive,
_tagnameString, false /*required*/);
VirtualPath src = Util.GetAndRemoveVirtualPathAttribute(directive,
_sourceString, false /*required*/);
string ns = Util.GetAndRemoveNonEmptyNoSpaceAttribute(directive,
_namespaceString, false /*required*/);
// An Assembly can optionally be specified (ASURT 61326/VSWhidbey 87050)
string assemblyName = Util.GetAndRemoveNonEmptyAttribute(directive, "assembly",
false /*required*/);
RegisterDirectiveEntry registerEntry;
if (tagName != null) {
// It's a user control registration
// 'src' is required
if (src == null) {
throw new HttpException(SR.GetString(SR.Missing_attr, _sourceString));
}
// 'namespace' is not allowed
if (ns != null) {
throw new HttpException(
SR.GetString(SR.Invalid_attr, _namespaceString, "tagname"));
}
// 'assembly' is not allowed
if (assemblyName != null) {
throw new HttpException(
SR.GetString(SR.Invalid_attr, "assembly", "tagname"));
}
UserControlRegisterEntry ucRegisterEntry = new UserControlRegisterEntry(tagPrefix, tagName);
ucRegisterEntry.UserControlSource = src;
registerEntry = ucRegisterEntry;
TypeMapper.ProcessUserControlRegistration(ucRegisterEntry);
}
else if (src != null) {
// It's missing the tagname attribute.
throw new HttpException(SR.GetString(SR.Missing_attr, _tagnameString));
}
else {
// It's a namespace prefix registration
// 'namespace' is required
if (ns == null) {
throw new HttpException(SR.GetString(SR.Missing_attr, _namespaceString));
}
TagNamespaceRegisterEntry nsRegisterEntry = new TagNamespaceRegisterEntry(tagPrefix, ns, assemblyName);
registerEntry = nsRegisterEntry;
TypeMapper.ProcessTagNamespaceRegistration(nsRegisterEntry);
}
registerEntry.Line = _lineNumber;
registerEntry.VirtualPath = CurrentVirtualPathString;
// If there are some attributes left, fail
Util.CheckUnknownDirectiveAttributes(directiveName, directive);
}
else {
base.ProcessDirective(directiveName, directive);
}
}
}
/*
* Entry representing a register directive
* e.g. <%@ Register tagprefix="tagprefix" Namespace="namespace" Assembly="assembly" %> OR
* e.g. <%@ Register tagprefix="tagprefix" Tagname="tagname" Src="pathname" %>
*/
internal abstract class RegisterDirectiveEntry: SourceLineInfo {
internal RegisterDirectiveEntry(string tagPrefix) {
_tagPrefix = tagPrefix;
}
private string _tagPrefix;
internal string TagPrefix {
get { return _tagPrefix;}
}
}
/*
* Entry representing the registration of a tag namespace
* e.g. <%@ Register tagprefix="tagprefix" Namespace="namespace" Assembly="assembly" %>
*/
internal class TagNamespaceRegisterEntry: RegisterDirectiveEntry {
internal TagNamespaceRegisterEntry(string tagPrefix, string namespaceName, string assemblyName) : base(tagPrefix) {
_ns = namespaceName;
_assemblyName = assemblyName;
}
private string _ns;
internal string Namespace {
get { return _ns;}
}
private string _assemblyName;
internal string AssemblyName {
get { return _assemblyName;}
}
#if DONT_COMPILE
internal string Key {
get {
return TagPrefix + ":" + _ns + ":" + (_assemblyName == null ? String.Empty : _assemblyName);
}
}
#endif
}
/*
* Entry representing the registration of a user control
* e.g. <%@ Register tagprefix="tagprefix" Tagname="tagname" Src="pathname" %>
*/
internal class UserControlRegisterEntry: RegisterDirectiveEntry {
internal UserControlRegisterEntry(string tagPrefix, string tagName) : base(tagPrefix) {
_tagName = tagName;
}
private string _tagName;
internal string TagName {
get { return _tagName;}
}
private VirtualPath _source;
internal VirtualPath UserControlSource {
get { return _source;}
set { _source = value;}
}
private bool _comesFromConfig;
internal bool ComesFromConfig {
get { return _comesFromConfig;}
set { _comesFromConfig = value;}
}
internal string Key {
get {
return TagPrefix + ":" + _tagName;
}
}
}
internal class TagNamespaceRegisterEntryTable : Hashtable {
public TagNamespaceRegisterEntryTable() : base(StringComparer.OrdinalIgnoreCase) {
}
public override object Clone() {
// We override clone to perform a deep copy of the hashtable contents but a shallow copy of
// the contained arraylist itself
TagNamespaceRegisterEntryTable newTable = new TagNamespaceRegisterEntryTable();
foreach (DictionaryEntry entry in this) {
newTable[entry.Key] = ((ArrayList)entry.Value).Clone();
}
return newTable;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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