internal MshExpression CreateFromExpressionToken(ExpressionToken et, DatabaseLoadingInfo loadingInfo)
{
if (!et.isScriptBlock)
{
return new MshExpression(et.expressionValue);
}
if (this._expressionCache != null)
{
MshExpression expression;
if (this._expressionCache.TryGetValue(et, out expression))
{
return expression;
}
}
else
{
this._expressionCache = new Dictionary<ExpressionToken, MshExpression>();
}
ScriptBlock scriptBlock = ScriptBlock.Create(et.expressionValue);
scriptBlock.DebuggerStepThrough = true;
if ((loadingInfo != null) && loadingInfo.isFullyTrusted)
{
scriptBlock.LanguageMode = 0;
}
MshExpression expression2 = new MshExpression(scriptBlock);
this._expressionCache.Add(et, expression2);
return expression2;
}
private bool EvaluateDisplayCondition(PSObject so, ExpressionToken conditionToken)
{
MshExpressionResult result;
if (conditionToken == null)
{
return true;
}
MshExpression ex = this.expressionFactory.CreateFromExpressionToken(conditionToken, this.loadingInfo);
bool flag = DisplayCondition.Evaluate(so, ex, out result);
if ((result != null) && (result.Exception != null))
{
this.errorManager.LogMshExpressionFailedResult(result, so);
}
return flag;
}
private ExpressionToken LoadExpressionFromObjectModel(DisplayEntry displayEntry, int viewIndex, string typeName)
{
ExpressionToken token = new ExpressionToken();
if (displayEntry.ValueType.Equals(DisplayEntryValueType.Property))
{
token.expressionValue = displayEntry.Value;
return token;
}
if (displayEntry.ValueType.Equals(DisplayEntryValueType.ScriptBlock))
{
token.isScriptBlock = true;
token.expressionValue = displayEntry.Value;
try
{
base.expressionFactory.VerifyScriptBlockText(token.expressionValue);
}
catch (ParseException exception)
{
base.ReportErrorForLoadingFromObjectModel(StringUtil.Format(FormatAndOutXmlLoadingStrings.InvalidScriptBlockInFormattingData, new object[] { typeName, viewIndex, exception.Message }), typeName);
return null;
}
catch (Exception)
{
throw;
}
return token;
}
PSTraceSource.NewInvalidOperationException();
return null;
}
internal bool ProcessExpressionDirectives(System.Xml.XmlNode containerNode, List<System.Xml.XmlNode> unprocessedNodes)
{
if (containerNode == null)
{
throw PSTraceSource.NewArgumentNullException("containerNode");
}
string mandatoryInnerText = null;
Microsoft.PowerShell.Commands.Internal.Format.TextToken token = null;
TypeInfoDataBaseLoader.ExpressionNodeMatch match = new TypeInfoDataBaseLoader.ExpressionNodeMatch(this._loader);
bool flag = false;
bool flag2 = false;
bool flag3 = false;
foreach (System.Xml.XmlNode node in containerNode.ChildNodes)
{
if (match.MatchNode(node))
{
if (flag2)
{
this._loader.ProcessDuplicateNode(node);
return false;
}
flag2 = true;
if (!match.ProcessNode(node))
{
return false;
}
}
else if (this._loader.MatchNodeName(node, "FormatString"))
{
if (flag)
{
this._loader.ProcessDuplicateNode(node);
return false;
}
flag = true;
mandatoryInnerText = this._loader.GetMandatoryInnerText(node);
if (mandatoryInnerText == null)
{
this._loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NoFormatString, this._loader.ComputeCurrentXPath(), this._loader.FilePath));
return false;
}
}
else if (this._loader.MatchNodeNameWithAttributes(node, "Text"))
{
if (flag3)
{
this._loader.ProcessDuplicateNode(node);
return false;
}
flag3 = true;
token = this._loader.LoadText(node);
if (token == null)
{
this._loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.InvalidNode, new object[] { this._loader.ComputeCurrentXPath(), this._loader.FilePath, "Text" }));
return false;
}
}
else
{
unprocessedNodes.Add(node);
}
}
if (flag2)
{
if (flag3)
{
this._loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NodeWithExpression, new object[] { this._loader.ComputeCurrentXPath(), this._loader.FilePath, "Text" }));
return false;
}
ExpressionToken token2 = match.GenerateExpressionToken();
if (token2 == null)
{
return false;
}
if (!string.IsNullOrEmpty(mandatoryInnerText))
{
this._formatString = mandatoryInnerText;
}
this._expression = token2;
}
else
{
if (flag)
{
this._loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NodeWithoutExpression, new object[] { this._loader.ComputeCurrentXPath(), this._loader.FilePath, "FormatString" }));
return false;
}
if (flag3)
{
this._textToken = token;
}
}
return true;
}
internal bool ProcessNode(System.Xml.XmlNode n)
{
if (this._loader.MatchNodeName(n, "PropertyName"))
{
if (this._token != null)
{
if (this._token.isScriptBlock)
{
this._loader.ProcessDuplicateAlternateNode(n, "PropertyName", "ScriptBlock");
}
else
{
this._loader.ProcessDuplicateNode(n);
}
return false;
}
this._token = new ExpressionToken();
this._token.expressionValue = this._loader.GetMandatoryInnerText(n);
if (this._token.expressionValue == null)
{
this._loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NoProperty, this._loader.ComputeCurrentXPath(), this._loader.FilePath));
this._fatalError = true;
return false;
}
return true;
}
if (this._loader.MatchNodeName(n, "ScriptBlock"))
{
if (this._token != null)
{
if (!this._token.isScriptBlock)
{
this._loader.ProcessDuplicateAlternateNode(n, "PropertyName", "ScriptBlock");
}
else
{
this._loader.ProcessDuplicateNode(n);
}
return false;
}
this._token = new ExpressionToken();
this._token.isScriptBlock = true;
this._token.expressionValue = this._loader.GetMandatoryInnerText(n);
if (this._token.expressionValue == null)
{
this._loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NoScriptBlockText, this._loader.ComputeCurrentXPath(), this._loader.FilePath));
this._fatalError = true;
return false;
}
if (!this._loader.suppressValidation && !this._loader.VerifyScriptBlock(this._token.expressionValue))
{
this._fatalError = true;
return false;
}
return true;
}
PSTraceSource.NewInvalidOperationException();
return false;
}
/// <summary>
/// Load the expression information from DisplayEntry
/// </summary>
/// <param name="displayEntry"></param>
/// <param name="viewIndex"></param>
/// <param name="typeName"></param>
/// <returns></returns>
private ExpressionToken LoadExpressionFromObjectModel(DisplayEntry displayEntry, int viewIndex, string typeName)
{
ExpressionToken token = new ExpressionToken();
if (displayEntry.ValueType == DisplayEntryValueType.Property)
{
token.expressionValue = displayEntry.Value;
return token;
}
else if (displayEntry.ValueType == DisplayEntryValueType.ScriptBlock)
{
token.isScriptBlock = true;
token.expressionValue = displayEntry.Value;
try
{
// For faster startup, we don't validate any of the built-in formatting script blocks, where isFullyTrusted == built-in.
if (!LoadingInfo.isFullyTrusted)
{
this.expressionFactory.VerifyScriptBlockText(token.expressionValue);
}
}
catch (ParseException e)
{
// Error at
this.ReportErrorForLoadingFromObjectModel(
StringUtil.Format(FormatAndOutXmlLoadingStrings.InvalidScriptBlockInFormattingData, typeName, viewIndex, e.Message), typeName);
return null;
}
catch (Exception e) // will rethrow
{
Diagnostics.Assert(false, "TypeInfoBaseLoader.VerifyScriptBlock unexpected exception " + e.GetType().FullName);
throw;
}
return token;
}
// this should never happen if the API is used correctly
PSTraceSource.NewInvalidOperationException();
return null;
}
internal bool ProcessNode(XmlNode n)
{
if (_loader.MatchNodeName(n, XmlTags.PropertyNameNode))
{
if (_token != null)
{
if (_token.isScriptBlock)
_loader.ProcessDuplicateAlternateNode(n, XmlTags.PropertyNameNode, XmlTags.ScriptBlockNode);
else
_loader.ProcessDuplicateNode(n);
return false; // fatal error
}
_token = new ExpressionToken();
_token.expressionValue = _loader.GetMandatoryInnerText(n);
if (_token.expressionValue == null)
{
//Error at XPath {0} in file {1}: Missing property.
_loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NoProperty, _loader.ComputeCurrentXPath(), _loader.FilePath));
_fatalError = true;
return false; // fatal error
}
return true;
}
else if (_loader.MatchNodeName(n, XmlTags.ScriptBlockNode))
{
if (_token != null)
{
if (!_token.isScriptBlock)
_loader.ProcessDuplicateAlternateNode(n, XmlTags.PropertyNameNode, XmlTags.ScriptBlockNode);
else
_loader.ProcessDuplicateNode(n);
return false; // fatal error
}
_token = new ExpressionToken();
_token.isScriptBlock = true;
_token.expressionValue = _loader.GetMandatoryInnerText(n);
if (_token.expressionValue == null)
{
//Error at XPath {0} in file {1}: Missing script block text.
_loader.ReportError(StringUtil.Format(FormatAndOutXmlLoadingStrings.NoScriptBlockText, _loader.ComputeCurrentXPath(), _loader.FilePath));
_fatalError = true;
return false; // fatal error
}
if ((!_loader._suppressValidation) && (!_loader.VerifyScriptBlock(_token.expressionValue)))
{
_fatalError = true;
return false; // fatal error
}
return true;
}
// this should never happen if the API is used correctly
PSTraceSource.NewInvalidOperationException();
return false;
}
protected bool EvaluateDisplayCondition(PSObject so, ExpressionToken conditionToken)
{
if (conditionToken == null)
return true;
MshExpression ex = this.expressionFactory.CreateFromExpressionToken(conditionToken, this.dataBaseInfo.view.loadingInfo);
MshExpressionResult expressionResult;
bool retVal = DisplayCondition.Evaluate(so, ex, out expressionResult);
if (expressionResult != null && expressionResult.Exception != null)
{
_errorManager.LogMshExpressionFailedResult(expressionResult, so);
}
return retVal;
}
internal MshExpression CreateFromExpressionToken(ExpressionToken et)
{
return this.CreateFromExpressionToken(et, null);
}
/// <summary>
/// create an expression from an expression token
/// </summary>
/// <param name="et">expression token to use</param>
/// <param name="loadingInfo">The context from which the file was loaded</param>
/// <returns>constructed expression</returns>
/// <exception cref="ParseException"></exception>
internal MshExpression CreateFromExpressionToken(ExpressionToken et, DatabaseLoadingInfo loadingInfo)
{
if (et.isScriptBlock)
{
// we cache script blocks from expression tokens
if (_expressionCache != null)
{
MshExpression value;
if (_expressionCache.TryGetValue(et, out value))
{
// got a hit on the cache, just return
return value;
}
}
else
{
_expressionCache = new Dictionary<ExpressionToken, MshExpression>();
}
bool isFullyTrusted = false;
bool isProductCode = false;
if (loadingInfo != null)
{
isFullyTrusted = loadingInfo.isFullyTrusted;
isProductCode = loadingInfo.isProductCode;
}
// no hit, we build one and we cache
ScriptBlock sb = ScriptBlock.CreateDelayParsedScriptBlock(et.expressionValue, isProductCode: isProductCode);
sb.DebuggerStepThrough = true;
if (isFullyTrusted)
{
sb.LanguageMode = PSLanguageMode.FullLanguage;
}
MshExpression ex = new MshExpression(sb);
_expressionCache.Add(et, ex);
return ex;
}
// we do not cache if it is just a property name
return new MshExpression(et.expressionValue);
}
/// <summary>
/// Create an expression from an expression token.
/// </summary>
/// <param name="et">Expression token to use.</param>
/// <returns>Constructed expression.</returns>
/// <exception cref="ParseException"></exception>
internal PSPropertyExpression CreateFromExpressionToken(ExpressionToken et)
{
return(CreateFromExpressionToken(et, null));
}
private bool LoadPropertyBaseHelper(XmlNode propertyBaseNode, PropertyTokenBase ptb, List <XmlNode> unprocessedNodes)
{
ExpressionNodeMatch expressionMatch = new ExpressionNodeMatch(this);
bool expressionNodeFound = false; // cardinality 0..1
bool collectionNodeFound = false; // cardinality 0..1
bool itemSelectionConditionNodeFound = false; // cardinality 0..1
ExpressionToken condition = null;
foreach (XmlNode n in propertyBaseNode.ChildNodes)
{
if (expressionMatch.MatchNode(n))
{
if (expressionNodeFound)
{
this.ProcessDuplicateNode(n);
return(false); // fatal error
}
expressionNodeFound = true;
if (!expressionMatch.ProcessNode(n))
{
return(false); // fatal error
}
}
else if (MatchNodeName(n, XmlTags.EnumerateCollectionNode))
{
if (collectionNodeFound)
{
this.ProcessDuplicateNode(n);
return(false);
}
collectionNodeFound = true;
if (!ReadBooleanNode(n, out ptb.enumerateCollection))
{
return(false);
}
}
else if (MatchNodeName(n, XmlTags.ItemSelectionConditionNode))
{
if (itemSelectionConditionNodeFound)
{
this.ProcessDuplicateNode(n);
return(false);
}
itemSelectionConditionNodeFound = true;
condition = LoadItemSelectionCondition(n);
if (condition is null)
{
return(false);
}
}
else
{
if (!IsFilteredOutNode(n))
{
unprocessedNodes.Add(n);
}
}
}
if (expressionNodeFound)
{
// we add only if we encountered one, since it's not mandatory
ExpressionToken expression = expressionMatch.GenerateExpressionToken();
if (expression is null)
{
return(false); // fatal error
}
ptb.expression = expression;
ptb.conditionToken = condition;
}
return(true);
}
private ListControlItemDefinition LoadListControlItemDefinition(XmlNode propertyEntryNode)
{
using (this.StackFrame(propertyEntryNode))
{
// process Mshexpression, format string and text token
ViewEntryNodeMatch match = new ViewEntryNodeMatch(this);
List <XmlNode> unprocessedNodes = new List <XmlNode>();
if (!match.ProcessExpressionDirectives(propertyEntryNode, unprocessedNodes))
{
return(null); // fatal error
}
// process the remaining nodes
TextToken labelToken = null;
ExpressionToken condition = null;
bool labelNodeFound = false; // cardinality 0..1
bool itemSelectionConditionNodeFound = false; // cardinality 0..1
foreach (XmlNode n in unprocessedNodes)
{
if (MatchNodeName(n, XmlTags.ItemSelectionConditionNode))
{
if (itemSelectionConditionNodeFound)
{
this.ProcessDuplicateNode(n);
return(null); // fatal error
}
itemSelectionConditionNodeFound = true;
condition = LoadItemSelectionCondition(n);
if (condition is null)
{
return(null); // fatal error
}
}
else if (MatchNodeNameWithAttributes(n, XmlTags.LabelNode))
{
if (labelNodeFound)
{
this.ProcessDuplicateNode(n);
return(null); // fatal error
}
labelNodeFound = true;
labelToken = LoadLabel(n);
if (labelToken is null)
{
return(null); // fatal error
}
}
else
{
this.ProcessUnknownNode(n);
}
}
// finally build the item to return
ListControlItemDefinition lvid = new ListControlItemDefinition();
// add the label
lvid.label = labelToken;
// add condition
lvid.conditionToken = condition;
// add either the text token or the PSPropertyExpression with optional format string
if (match.TextToken != null)
{
lvid.formatTokenList.Add(match.TextToken);
}
else
{
FieldPropertyToken fpt = new FieldPropertyToken();
fpt.expression = match.Expression;
fpt.fieldFormattingDirective.formatString = match.FormatString;
lvid.formatTokenList.Add(fpt);
}
return(lvid);
}
}
/// <summary>
/// create an expression from an expression token
/// </summary>
/// <param name="et">expression token to use</param>
/// <returns>constructed expression</returns>
/// <exception cref="ParseException"></exception>
internal MshExpression CreateFromExpressionToken(ExpressionToken et)
{
return(CreateFromExpressionToken(et, null));
}
