public static BindingExpressionInfo ParseExpr(string expression, BindingExpressionContext context)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
int colonIndex = expression.IndexOf(':');
if (colonIndex == -1)
{
throw new ArgumentException("The expression must contain a colon.", "expression");
}
string prefix = expression.Substring(0, colonIndex);
string ns;
if (!context.InScopeNamespaces.TryGetValue(prefix, out ns))
{
throw new ArgumentException("The are no namespaces defined for prefix '{0}'.".FormatInvariant(prefix), "expression");
}
string value = expression.Substring(colonIndex + 1);
BindingExpressionBuilder exprBuilder;
ExpressionBuilderElement el = WebSection.Instance.Compilation.ExpressionBuilders.Get(ns);
if (el == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, "There are no expression builders registered for namespace '{0}'.", ns));
}
exprBuilder = (BindingExpressionBuilder)Activator.CreateInstance(el.TypeInternal);
BindingExpressionInfo exprInfo = exprBuilder.ParseExpression(value, context);
if (exprInfo == null)
{
exprInfo = new BindingExpressionInfo(expression);
}
exprInfo.ExpressionBuilder = exprBuilder;
return(exprInfo);
}
public static BindingExpressionInfo ParseExpr(string expression, BindingExpressionContext context)
{
if (expression == null) throw new ArgumentNullException("expression");
if (context == null) throw new ArgumentNullException("context");
int colonIndex = expression.IndexOf(':');
if (colonIndex == -1) {
throw new ArgumentException("The expression must contain a colon.", "expression");
}
string prefix = expression.Substring(0, colonIndex);
string ns;
if (!context.InScopeNamespaces.TryGetValue(prefix, out ns)) {
throw new ArgumentException("The are no namespaces defined for prefix '{0}'.".FormatInvariant(prefix), "expression");
}
string value = expression.Substring(colonIndex + 1);
BindingExpressionBuilder exprBuilder;
ExpressionBuilderElement el = WebSection.Instance.Compilation.ExpressionBuilders.Get(ns);
if (el == null) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, "There are no expression builders registered for namespace '{0}'.", ns));
}
exprBuilder = (BindingExpressionBuilder)Activator.CreateInstance(el.TypeInternal);
BindingExpressionInfo exprInfo = exprBuilder.ParseExpression(value, context);
if (exprInfo == null) {
exprInfo = new BindingExpressionInfo(expression);
}
exprInfo.ExpressionBuilder = exprBuilder;
return exprInfo;
}
public override BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
// TODO: Fix error messages not to refer to web:bind but expression builder prefix/ns instead
var uri = new Uri(expression, UriKind.RelativeOrAbsolute);
if (!uri.IsAbsoluteUri)
{
uri = new Uri(String.Concat(SessionModule.Prefix, ":", uri.OriginalString), UriKind.Absolute);
}
var validValues = new List <string>()
{
bind.it
};
string path = uri.AbsolutePath;
string nodeName = context.NodeName ?? context.BoundNode.Name;
if (!validValues.Contains(path))
{
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "The value of the '{0}' attribute must be one of these values: {1}.", nodeName, String.Join(", ", validValues.ToArray())));
}
if (context.AffectsXsltInitiation)
{
throw new ArgumentException("Cannot bind to session when the parameter affects XSLT initiation.");
}
BasePageParser pageParser = context.Parser as BasePageParser;
if (path == bind.it && pageParser != null && pageParser.EnableSessionState == PagesEnableSessionState.False)
{
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "Cannot bind to {0} because session state is disabled for this page. Try setting enable-session-state=\"true\" on the page processing instruction.", bind.it)
);
}
NameValueCollection query = (uri.Query.Length > 1) ?
HttpUtility.ParseQueryString(uri.Query.Replace(';', '&')) :
new NameValueCollection();
var exprInfo = new BindingExpressionInfo(expression)
{
ParsedObject = uri
};
if (query["name"] != null)
{
exprInfo.ParsedValues["name"] = query["name"];
query.Remove("name");
}
else
{
XPathNavigator nav = context.BoundNode.Clone();
nav.MoveToParent();
if (nav.NodeType == XPathNodeType.Element &&
nav.LocalName == "param" &&
nav.NamespaceURI == WellKnownNamespaces.XSLT)
{
exprInfo.ParsedValues["name"] = nav.GetAttribute("name", "");
}
}
switch (path)
{
case bind.it:
exprInfo.ParsedValues["remove"] = GetBooleanOrDefault(query["remove"]);
query.Remove("remove");
break;
default:
if (query["remove"] != null)
{
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "The remove option is not valid for {0}.", path)
);
}
break;
}
foreach (string key in query.AllKeys)
{
exprInfo.ParsedValues.Add(key, query[key]);
}
return(exprInfo);
}
public override BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
return(new BindingExpressionInfo(expression));
}
protected void ParseParameter()
{
XPathNavigator nav = this.Navigator;
string nameValue = nav.GetAttribute("name", "");
if (this.Parameters.Contains(nameValue)) {
return;
}
PageParameterInfo paramInfo = null;
if (nav.MoveToAttribute("bind", WebModule.Namespace)) {
var exprBuilderContext = new BindingExpressionContext(this, nav.Clone());
BindingExpressionInfo exprInfo = null;
try {
exprInfo = BindingExpressionBuilder.ParseExpr(nav.Value, exprBuilderContext);
} catch (Exception ex) {
throw CreateParseException(ex.Message);
}
if (exprInfo != null) {
exprInfo.LineNumber = ((IXmlLineInfo)nav).LineNumber;
}
nav.MoveToParent();
IDictionary<string, string> namespacesInScope = nav.GetNamespacesInScope(XmlNamespaceScope.All);
bool hasDefaultValue = !String.IsNullOrEmpty(nav.GetAttribute("select", ""));
string asValue = nav.GetAttribute("as", "");
bool required = nav.GetAttribute("required", "") == "yes";
paramInfo = PageParameterInfo.FromSequenceType(nameValue, asValue, namespacesInScope);
if (hasDefaultValue) {
if (paramInfo.MinLength > 0) {
paramInfo.MinLength = 0;
}
} else if (required) {
if (paramInfo.MinLength == 0) {
paramInfo.MinLength = 1;
}
}
paramInfo.Binding = exprInfo;
}
if (paramInfo != null) {
this.Parameters.Add(paramInfo);
}
}
protected void ParsePagePI()
{
XPathNavigator nav = this.Navigator;
IDictionary<string, string> attribs = GetAttributes(nav.Value);
// language
string language = GetNonEmptyNoWhitespaceAttribute(attribs, page.language);
if (language != null) {
this.Language = language;
}
// class-name
string className = GetFullClassNameAttribute(attribs, page.class_name);
if (!String.IsNullOrEmpty(className)) {
this.GeneratedTypeFullName = className;
}
// content-type
string contentType = GetNonEmptyAttribute(attribs, page.content_type);
if (contentType != null) {
this.ContentType = contentType;
}
// enable-session-state
object enableSs = GetEnumAttribute(attribs, page.enable_session_state, typeof(PagesEnableSessionState));
if (enableSs != null) {
this.EnableSessionState = (PagesEnableSessionState)enableSs;
}
// validate-request
bool valReq = default(bool);
if (GetBooleanAttribute(attribs, page.validate_request, ref valReq)) {
this.ValidateRequest = valReq;
}
// accept-verbs
string acceptVerbs = GetNonEmptyAttribute(attribs, page.accept_verbs);
if (acceptVerbs != null) {
string[] verbs = acceptVerbs.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < verbs.Length; i++) {
this.AcceptVerbs.Add(verbs[i].Trim());
}
}
// XSLT related attributes
XPathNavigator nav2 = nav.CreateNavigator();
nav2.MoveToRoot();
nav2.MoveToChild(XPathNodeType.Element);
IDictionary<string, string> namespacesInScope = nav2.GetNamespacesInScope(XmlNamespaceScope.All);
// initial-template
string initialTempl = GetNonEmptyAttribute(attribs, page.initial_template);
if (initialTempl != null) {
if (this.PageType != XsltPageType.StandardStylesheet) {
throw CreateParseException("The '{0}' attribute can only be used on standard XSLT pages.", page.initial_template);
}
string itLocal = initialTempl;
string itNamespace = "";
if (initialTempl.Contains(":")) {
string[] itParts = initialTempl.Split(':');
itLocal = itParts[1];
string itPrefix = itParts[0];
if (namespacesInScope.ContainsKey(itPrefix)) {
itNamespace = namespacesInScope[itPrefix];
}
}
this.InitialTemplate = new XmlQualifiedName(itLocal, itNamespace);
}
// initial-template-binding
string initialTemplBind = GetNonEmptyAttribute(attribs, page.bind_initial_template);
if (initialTemplBind != null) {
if (this.PageType != XsltPageType.StandardStylesheet) {
throw CreateParseException("The '{0}' attribute can only be used on standard XSLT pages.", page.bind_initial_template);
}
var exprBuilderContext = new BindingExpressionContext(this, nav.Clone(), namespacesInScope) {
NodeName = page.bind_initial_template,
AffectsXsltInitiation = true
};
try {
this.InitialTemplateBinding = BindingExpressionBuilder.ParseExpr(initialTemplBind, exprBuilderContext);
} catch (Exception ex) {
throw CreateParseException(ex.Message);
}
if (this.InitialTemplateBinding != null) {
this.InitialTemplateBinding.LineNumber = ((IXmlLineInfo)nav).LineNumber;
}
}
// processor
string processor = GetNonEmptyAttribute(attribs, page.processor);
if (processor != null) {
if (!Processors.Xslt.Exists(processor)) {
throw CreateParseException("The processor '{0}' is not registered.", processor);
}
this.ProcessorName = processor;
}
}
public override BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
// TODO: Fix error messages not to refer to web:bind but expression builder prefix/ns instead
var uri = new Uri(expression, UriKind.RelativeOrAbsolute);
if (!uri.IsAbsoluteUri) {
uri = new Uri(String.Concat(SessionModule.Prefix, ":", uri.OriginalString), UriKind.Absolute);
}
var validValues = new List<string>() { bind.it };
string path = uri.AbsolutePath;
string nodeName = context.NodeName ?? context.BoundNode.Name;
if (!validValues.Contains(path))
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "The value of the '{0}' attribute must be one of these values: {1}.", nodeName, String.Join(", ", validValues.ToArray())));
if (context.AffectsXsltInitiation) {
throw new ArgumentException("Cannot bind to session when the parameter affects XSLT initiation.");
}
BasePageParser pageParser = context.Parser as BasePageParser;
if (path == bind.it && pageParser != null && pageParser.EnableSessionState == PagesEnableSessionState.False)
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "Cannot bind to {0} because session state is disabled for this page. Try setting enable-session-state=\"true\" on the page processing instruction.", bind.it)
);
NameValueCollection query = (uri.Query.Length > 1) ?
HttpUtility.ParseQueryString(uri.Query.Replace(';', '&')) :
new NameValueCollection();
var exprInfo = new BindingExpressionInfo(expression) {
ParsedObject = uri
};
if (query["name"] != null) {
exprInfo.ParsedValues["name"] = query["name"];
query.Remove("name");
} else {
XPathNavigator nav = context.BoundNode.Clone();
nav.MoveToParent();
if (nav.NodeType == XPathNodeType.Element
&& nav.LocalName == "param"
&& nav.NamespaceURI == WellKnownNamespaces.XSLT) {
exprInfo.ParsedValues["name"] = nav.GetAttribute("name", "");
}
}
switch (path) {
case bind.it:
exprInfo.ParsedValues["remove"] = GetBooleanOrDefault(query["remove"]);
query.Remove("remove");
break;
default:
if (query["remove"] != null) {
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "The remove option is not valid for {0}.", path)
);
}
break;
}
foreach (string key in query.AllKeys) {
exprInfo.ParsedValues.Add(key, query[key]);
}
return exprInfo;
}
public override BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
// TODO: Fix error messages not to refer to web:bind but expression builder prefix/ns instead
var uri = new Uri(expression, UriKind.RelativeOrAbsolute);
if (!uri.IsAbsoluteUri)
{
uri = new Uri(String.Concat(RequestModule.Prefix, ":", uri.OriginalString), UriKind.Absolute);
}
var validValues = new List <string>()
{
bind.query, bind.cookie, bind.form,
bind.header, bind.http_method
};
string path = uri.AbsolutePath;
string nodeName = context.NodeName ?? context.BoundNode.Name;
if (!validValues.Contains(path))
{
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "The value of the '{0}' attribute must be one of these values: {1}.", nodeName, String.Join(", ", validValues.ToArray())));
}
BasePageParser pageParser = context.Parser as BasePageParser;
NameValueCollection query = (uri.Query.Length > 1) ?
HttpUtility.ParseQueryString(uri.Query.Replace(';', '&')) :
new NameValueCollection();
var exprInfo = new BindingExpressionInfo(expression)
{
ParsedObject = uri
};
if (query["name"] != null)
{
exprInfo.ParsedValues["name"] = query["name"];
query.Remove("name");
}
else
{
XPathNavigator nav = context.BoundNode.Clone();
nav.MoveToParent();
if (nav.NodeType == XPathNodeType.Element &&
nav.LocalName == "param" &&
nav.NamespaceURI == WellKnownNamespaces.XSLT)
{
exprInfo.ParsedValues["name"] = nav.GetAttribute("name", "");
}
}
if (query["accept"] != null)
{
switch (path)
{
case bind.http_method:
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "When '{0}' is set to '{1}' use the '{2}' attribute instead of the 'accept' option.", XsltPageParser.page.bind_initial_template, bind.http_method, XsltPageParser.page.accept_verbs)
);
}
exprInfo.ParsedValues["accept"] = query["accept"].Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
query.Remove("accept");
}
else
{
if (context.AffectsXsltInitiation)
{
if (path != bind.http_method)
{
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "The 'accept' option is required for '{0}'. Try this: {1}?accept=[comma-separated template names]", XsltPageParser.page.bind_initial_template, path)
);
}
else if (pageParser != null && pageParser.AcceptVerbs.Count == 0)
{
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "The '{0}' attribute is required when '{1}' is set to '{2}'.", XsltPageParser.page.accept_verbs, XsltPageParser.page.bind_initial_template, path)
);
}
}
}
switch (path)
{
case bind.cookie:
exprInfo.ParsedValues["remove"] = GetBooleanOrDefault(query["remove"]);
query.Remove("remove");
break;
default:
if (query["remove"] != null)
{
throw new ArgumentException(
String.Format(CultureInfo.InvariantCulture, "The remove option is not valid for {0}.", path)
);
}
break;
}
foreach (string key in query.AllKeys)
{
exprInfo.ParsedValues.Add(key, query[key]);
}
return(exprInfo);
}
public virtual BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
return(null);
}
public virtual BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
return null;
}
public override BindingExpressionInfo ParseExpression(string expression, BindingExpressionContext context)
{
return new BindingExpressionInfo(expression);
}
