/// <summary>
///
/// </summary>
/// <param name="templateParsingState"></param>
/// <param name="me"></param>
/// <returns></returns>
protected IFileContainer GetFileContainer(ITemplateParsingState templateParsingState, System.Xml.XmlNode me)
{
string currentWorkingDirectory = templateParsingState.GetCWD(me);
XmlAttribute filenameAttribute = me.Attributes["filename"];
if (null == filenameAttribute)
{
me.ParentNode.ParentNode.InsertBefore(
templateParsingState.GenerateWarningNode("filename not specified: " + me.OuterXml),
me.ParentNode);
return null;
}
string filename = templateParsingState.WebConnection.WebServer.FileHandlerFactoryLocator.FileSystemResolver.GetAbsolutePath(
currentWorkingDirectory,
filenameAttribute.Value);
try
{
return templateParsingState.WebConnection.WebServer.FileHandlerFactoryLocator.FileSystemResolver.ResolveFile(filename);
}
catch (FileNotFoundException fnfe)
{
log.Warn("Attempted to get permission for a non-existant file: " + filenameAttribute.Value, fnfe);
me.ParentNode.ParentNode.InsertBefore(
templateParsingState.GenerateWarningNode("File doesn't exist: " + me.OuterXml),
me.ParentNode);
return null;
}
}
private void HandleConditional(
ITemplateParsingState templateParsingState,
IDictionary<string, object> getParameters,
XmlNode conditionalNode)
{
Dictionary<string, ITemplateConditionHandler> templateConditionHandlers = templateParsingState.TemplateHandlerLocator.TemplateConditionHandlers;
XmlNode current = conditionalNode.FirstChild;
bool conditionMet = false;
// Note: Looping continues after the condition is met to ensure that all nodes are in the correct namespace
while (null != current)
{
// Make sure the namespace is proper
if (current.NamespaceURI != templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace)
conditionalNode.ParentNode.InsertBefore(
templateParsingState.GenerateWarningNode("All nodes within an <if> must be of " + templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace + " namespace: " + current.OuterXml),
conditionalNode);
else
{
// Make sure the node is supported
ITemplateConditionHandler templateConditionHandler;
if (!templateConditionHandlers.TryGetValue(current.LocalName, out templateConditionHandler))
conditionalNode.ParentNode.InsertBefore(
templateParsingState.GenerateWarningNode("There is no condition handler for " + current.LocalName + ": " + current.OuterXml),
conditionalNode);
if (!conditionMet)
try
{
if (templateConditionHandler.IsConditionMet(templateParsingState, current))
{
conditionMet = true;
foreach (XmlNode xmlNode in Enumerable<XmlNode>.FastCopy(Enumerable<XmlNode>.Filter(current.ChildNodes)))
conditionalNode.ParentNode.InsertBefore(xmlNode, conditionalNode);
}
}
catch (Exception e)
{
log.Error("Unhandled error for condition tag " + current.LocalName + ": " + current.OuterXml, e);
conditionalNode.ParentNode.InsertBefore(
templateParsingState.GenerateWarningNode("An unhandled error occured processing: " + current.OuterXml),
conditionalNode);
}
}
current = current.NextSibling;
}
conditionalNode.ParentNode.RemoveChild(conditionalNode);
}
/// <summary>
///
/// </summary>
/// <param name="templateParsingState"></param>
/// <param name="me"></param>
/// <returns></returns>
public bool IsConditionMet(ITemplateParsingState templateParsingState, XmlNode me)
{
IFileContainer fileContainer = GetFileContainer(templateParsingState, me);
if (null == fileContainer)
return false;
XmlAttribute namedPermissionAttribute = me.Attributes["namedpermission"];
if (null == namedPermissionAttribute)
{
me.ParentNode.ParentNode.InsertBefore(
templateParsingState.GenerateWarningNode("namedpermission not specified: " + me.OuterXml),
me.ParentNode);
return false;
}
return DetermineCondition(templateParsingState, fileContainer, namedPermissionAttribute.Value);
}
IEnumerable<XmlNode> DoParseTag(ITemplateParsingState templateParsingState, IDictionary<string, object> getParameters, XmlElement element)
{
// Generate the xml
StringBuilder xml = new StringBuilder(
string.Format("<html xmlns=\"{0}\"><head></head><body>", templateParsingState.TemplateDocument.FirstChild.NamespaceURI),
element.OuterXml.Length);
foreach (XmlNode xmlNode in element.ChildNodes)
if (xmlNode is XmlText)
xml.Append(((XmlText)xmlNode).InnerText);
else
xml.Append(xmlNode.OuterXml);
xml.Append("</body></html>");
XmlDocument xmlDocument;
try
{
xmlDocument = templateParsingState.LoadXmlDocument(
xml.ToString(),
templateParsingState.GetXmlParseMode(element),
element.OuterXml);
}
catch (WebResultsOverrideException wroe)
{
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode(wroe.WebResults.ResultsAsString));
return new XmlNode[0];
}
// import the new tags
IEnumerable<XmlNode> importedNodes = Enumerable<XmlNode>.FastCopy(Enumerable<XmlNode>.Cast(
xmlDocument.FirstChild.ChildNodes[1].ChildNodes));
templateParsingState.ReplaceNodes(element, importedNodes);
return importedNodes;
}
private void LoadSnipit(
ITemplateParsingState templateParsingState,
IDictionary<string, object> getParameters,
XmlElement element)
{
XmlAttribute srcAttribute = (XmlAttribute)element.Attributes.GetNamedItem("src", templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace);
if (null == srcAttribute)
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode("oc:src must be specified: " + element.OuterXml));
else
{
string fileName = templateParsingState.FileHandlerFactoryLocator.FileSystemResolver.GetAbsolutePath(
templateParsingState.GetCWD(element),
srcAttribute.Value);
IFileContainer fileContainer = templateParsingState.FileHandlerFactoryLocator.FileSystemResolver.ResolveFile(fileName);
templateParsingState.WebConnection.TouchedFiles.Add(fileContainer);
// If the user doesn't have permission for the component and the component has something to use instead, use it
if (null == fileContainer.LoadPermission(templateParsingState.WebConnection.Session.User.Id) && element.HasChildNodes)
{
XmlNode replacement = element.OwnerDocument.CreateElement("div");
foreach (XmlNode errorNode in element.ChildNodes)
replacement.AppendChild(errorNode);
element.ParentNode.InsertAfter(replacement, element);
element.ParentNode.RemoveChild(element);
}
else
{
// If the user has permission, resolve the component and deal with default errors
XmlDocument snipitDocument = new XmlDocument();
// TODO: GET Parameters
try
{
snipitDocument.LoadXml(string.Format(
"<div xmlns=\"{0}\" xmlns:oc=\"{1}\">{2}</div>",
templateParsingState.TemplateDocument.FirstChild.NamespaceURI,
templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace,
fileContainer.CastFileHandler<ITextHandler>().ReadAll()));
XmlNodeList replacementNodes = snipitDocument.FirstChild.ChildNodes;
templateParsingState.SetCWD(replacementNodes, fileContainer.ParentDirectoryHandler.FileContainer.FullPath);
templateParsingState.ReplaceNodes(element, replacementNodes);
}
catch (WebResultsOverrideException wroe)
{
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode(wroe.WebResults.ResultsAsString));
}
catch (Exception e)
{
log.Error("An error occured when loading a component", e);
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode("An unhandled error occured. See the system logs for more information"));
}
}
}
}
private void LoadComponent(
ITemplateParsingState templateParsingState,
IDictionary<string, object> getParameters,
XmlElement element)
{
XmlAttribute srcAttribute = (XmlAttribute)element.Attributes.GetNamedItem("src", templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace);
XmlAttribute urlAttribute = (XmlAttribute)element.Attributes.GetNamedItem("url", templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace);
// handle GET parameters
// First, handle oc:getpassthrough
IDictionary<string, object> myGetParameters;
XmlAttribute getpassthroughAttribute = (XmlAttribute)element.Attributes.GetNamedItem("getpassthough", templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace);
if (null == getpassthroughAttribute)
{
myGetParameters = DictionaryFunctions.Create<string, object>(getParameters);
myGetParameters.Remove("Method");
myGetParameters.Remove("Action");
}
else
{
if ("false" == getpassthroughAttribute.Value)
myGetParameters = new Dictionary<string, object>();
else
{
myGetParameters = DictionaryFunctions.Create<string, object>(getParameters);
myGetParameters.Remove("Method");
myGetParameters.Remove("Action");
}
}
// Next, pull out get parameters from the tag
foreach (XmlAttribute attribute in element.Attributes)
if ("" == attribute.NamespaceURI)
myGetParameters[attribute.LocalName] = attribute.Value;
if ((null == srcAttribute) && (null == urlAttribute))
// Remove empty components
element.ParentNode.RemoveChild(element);
else if ((null != srcAttribute) && (null != urlAttribute))
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode("Either oc:src or oc:url can be specified; you can not choose both: " + element.OuterXml));
else if (null != srcAttribute)
{
string fileName = templateParsingState.FileHandlerFactoryLocator.FileSystemResolver.GetAbsolutePath(
templateParsingState.GetCWD(element),
srcAttribute.Value);
IFileContainer fileContainer;
try
{
fileContainer = templateParsingState.FileHandlerFactoryLocator.FileSystemResolver.ResolveFile(fileName);
}
catch (FileDoesNotExist fdne)
{
log.Warn("An attempt was made to use a non-existant file in a template", fdne);
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode(fileName + " not found"));
return;
}
templateParsingState.WebConnection.TouchedFiles.Add(fileContainer);
// If the user doesn't have permission for the component and the component has something to use instead, use it
if (null == fileContainer.LoadPermission(templateParsingState.WebConnection.Session.User.Id) && element.HasChildNodes)
{
XmlNode replacement = element.OwnerDocument.CreateElement("div");
foreach (XmlNode errorNode in element.ChildNodes)
replacement.AppendChild(errorNode);
element.ParentNode.InsertAfter(replacement, element);
element.ParentNode.RemoveChild(element);
}
else
{
// If the user has permission, resolve the component and deal with default errors
XmlDocument componentDocument;
// TODO: GET Parameters
try
{
componentDocument = templateParsingState.LoadXmlDocumentAndReplaceGetParameters(
myGetParameters,
fileContainer,
templateParsingState.GetXmlParseMode(element));
XmlNode firstChild = componentDocument.FirstChild;
XmlNodeList replacementNodes;
if ((firstChild.LocalName == "componentdef") && (firstChild.NamespaceURI == templateParsingState.TemplateHandlerLocator.TemplatingConstants.TemplateNamespace))
replacementNodes = firstChild.ChildNodes;
else
replacementNodes = componentDocument.ChildNodes;
templateParsingState.SetCWD(replacementNodes, fileContainer.ParentDirectoryHandler.FileContainer.FullPath);
templateParsingState.ReplaceNodes(element, replacementNodes);
}
catch (WebResultsOverrideException wroe)
{
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode(wroe.WebResults.ResultsAsString));
}
catch (Exception e)
{
log.Error("An error occured when loading a component", e);
templateParsingState.ReplaceNodes(
element,
templateParsingState.GenerateWarningNode("An unhandled error occured. See the system logs for more information"));
}
}
}
else if (null != urlAttribute)
{
XmlNode resultNode;
string url = urlAttribute.Value;
foreach (KeyValuePair<string, object> getParameter in myGetParameters)
url = HTTPStringFunctions.AppendGetParameter(url, getParameter.Key, getParameter.Value.ToString());
try
{
if (url.StartsWith("https://"))
resultNode = templateParsingState.GenerateWarningNode("https component nodes aren't supported due to certificate complexities");
else if (url.StartsWith("http://"))
{
HttpResponseHandler httpResponse = templateParsingState.WebConnection.Session.HttpWebClient.Get(url);
if ("text/xml" == httpResponse.ContentType)
resultNode =
templateParsingState.LoadXmlDocument("<html xmlns=\"" + templateParsingState.TemplateHandlerLocator.TemplatingConstants.HtmlNamespace + "\"><head></head><body>" + httpResponse.AsString() + "</body></html>", XmlParseMode.Xml, templateParsingState.GetCWD(element)).FirstChild.ChildNodes[1];
else
resultNode = element.OwnerDocument.CreateTextNode(httpResponse.AsString());
}
else
try
{
ShellWebConnection shellWebConnection = new BlockingShellWebConnection(
url,
templateParsingState.WebConnection,
null,
templateParsingState.WebConnection.CookiesFromBrowser);
IWebResults shellResults = shellWebConnection.GenerateResultsForClient();
if ("text/xml" == shellResults.ContentType)
resultNode =
templateParsingState.LoadXmlDocument("<html xmlns=\"" + templateParsingState.TemplateHandlerLocator.TemplatingConstants.HtmlNamespace + "\"><head></head><body>" + shellResults.ResultsAsString + "</body></html>", XmlParseMode.Xml, templateParsingState.GetCWD(
element)).FirstChild.ChildNodes[1];
else
resultNode = element.OwnerDocument.CreateTextNode(shellResults.ResultsAsString);
}
catch (WebResultsOverrideException wroe)
{
resultNode = templateParsingState.GenerateWarningNode(wroe.WebResults.ResultsAsString);
}
}
catch (Exception e)
{
log.Error("An error occured when loading a component", e);
resultNode = templateParsingState.GenerateWarningNode("An unhandled error occured. See the system logs for more information");
}
templateParsingState.ReplaceNodes(element, resultNode);
}
}
