//============================================================
// Static Methods
//============================================================
internal static SwearFilterConfiguration LoadConfiguration(string configFilename)
{
SwearFilterConfiguration blockedWords = null;
FileStream blockedList = null;
try
{
blockedList = File.Open(configFilename, FileMode.Open, FileAccess.Read);
var configDoc = new XmlDocument();
configDoc.Load(blockedList);
XmlElement configuration = configDoc [MainEncosingTagName];
if (configuration != null)
{
XmlElement blockedWordsElement = configuration [BlockedWordsEnclosingTagName];
if (blockedWordsElement != null)
{
var allBlockedWords = new Collection <BlockedWord> ();
foreach (XmlElement blockedWordElement in blockedWordsElement.ChildNodes)
{
string word = null;
var blockedWordTag = blockedWordElement [BlockedWordTagName];
if (blockedWordTag != null)
{
word = blockedWordTag.InnerText;
}
string replacement = null;
var blockedWordReplacement = blockedWordElement [ReplacementTagName];
if (blockedWordReplacement != null)
{
replacement = blockedWordReplacement.InnerText;
}
var blockedWord = new BlockedWord {
Word = word, Replacement = replacement
};
if (blockedWord.Word != null)
{
allBlockedWords.Add(blockedWord);
}
}
blockedWords = new SwearFilterConfiguration {
_blockedWords = allBlockedWords
};
blockedWords.Validate();
}
}
}
finally
{
if (blockedList != null)
{
blockedList.Close();
}
}
return(blockedWords);
}
private static SwearFilterConfiguration GetConfiguration(string configFile)
{
string filename = HttpContext.Current.Server.MapPath(configFile);
var blockedWords = (SwearFilterConfiguration)_allConfigurations [NormaliseKey(filename)];
if ((blockedWords == null) && (File.Exists(filename)))
{
blockedWords = SwearFilterConfiguration.LoadConfiguration(filename);
_allConfigurations [NormaliseKey(filename)] = blockedWords;
WatchConfigFile(filename);
}
return(blockedWords);
}
///
/// <summary>
/// Render this control to the writer parameter specified.
/// </summary>
/// <remarks>
/// Note for inheritors - for this control to function properly, any derived controls that override
/// this method should ensure that they call this base method as part of their Render.
/// </remarks>
/// <param name="writer">The <see cref="HtmlTextWriter"/> object that receives the server control content.</param>
///
protected override void Render(HtmlTextWriter writer)
{
HtmlTextWriter realWriter = HtmlTextWriterFactory.CreateCorrectHtmlTextWriter(writer);
PowerPack.Announce(realWriter, ProductName);
string innerHtml = GetInnerHtml();
_blockedWords = GetConfiguration(_configFile);
string filteredInnerHtml = FilterHtml(innerHtml);
realWriter.Write(filteredInnerHtml);
return;
}
