/// <summary>
/// Encodes according to the CSS encoding rules.
/// </summary>
/// <param name="input">The string to encode.</param>
/// <returns>The encoded string.</returns>
internal static string Encode(string input)
{
if (string.IsNullOrEmpty(input))
{
return(input);
}
char[][] value = characterValuesLazy.Value;
StringBuilder outputStringBuilder = EncoderUtil.GetOutputStringBuilder(input.Length, 7);
Utf16StringReader utf16StringReader = new Utf16StringReader(input);
while (true)
{
int num = utf16StringReader.ReadNextScalarValue();
if (num < 0)
{
break;
}
if (num >= value.Length)
{
char[] value2 = SafeList.SlashThenSixDigitHexValueGenerator(num);
outputStringBuilder.Append(value2);
}
else if (value[num] != null)
{
char[] value3 = value[num];
outputStringBuilder.Append(value3);
}
else
{
outputStringBuilder.Append((char)num);
}
}
return(outputStringBuilder.ToString());
}
/// <summary>
/// Initializes the LDAP DN safe lists.
/// </summary>
/// <returns>The DN safe list.</returns>
private static char[][] InitialiseDistinguishedNameSafeList()
{
char[][] result = SafeList.Generate(255, new SafeList.GenerateSafeValue(SafeList.HashThenHexValueGenerator));
SafeList.PunchSafeList(ref result, DistinguishedNameSafeList());
EscapeDistinguisedNameCharacter(ref result, ',');
EscapeDistinguisedNameCharacter(ref result, '+');
EscapeDistinguisedNameCharacter(ref result, '"');
EscapeDistinguisedNameCharacter(ref result, '\\');
EscapeDistinguisedNameCharacter(ref result, '<');
EscapeDistinguisedNameCharacter(ref result, '>');
EscapeDistinguisedNameCharacter(ref result, ';');
return(result);
}
/// <summary>
/// Initializes the HTML safe list.
/// </summary>
private static void InitialiseSafeList()
{
AcquireWriteLock();
try
{
if (characterValues == null)
{
characterValues = SafeList.Generate(65535, new SafeList.GenerateSafeValue(SafeList.HashThenValueGenerator));
SafeList.PunchUnicodeThrough(ref characterValues, currentLowerCodeChartSettings, currentLowerMidCodeChartSettings, currentMidCodeChartSettings, currentUpperMidCodeChartSettings, currentUpperCodeChartSettings);
ApplyHtmlSpecificValues();
}
}
finally
{
ReleaseWriteLock();
}
}
/// <summary>
/// Marks characters from the specified languages as safe.
/// </summary>
/// <param name="lowerCodeCharts">The combination of lower code charts to use.</param>
/// <param name="lowerMidCodeCharts">The combination of lower mid code charts to use.</param>
/// <param name="midCodeCharts">The combination of mid code charts to use.</param>
/// <param name="upperMidCodeCharts">The combination of upper mid code charts to use.</param>
/// <param name="upperCodeCharts">The combination of upper code charts to use.</param>
/// <remarks>The safe list affects all HTML and XML encoding functions.</remarks>
public static void MarkAsSafe(LowerCodeCharts lowerCodeCharts, LowerMidCodeCharts lowerMidCodeCharts, MidCodeCharts midCodeCharts, UpperMidCodeCharts upperMidCodeCharts, UpperCodeCharts upperCodeCharts)
{
if (lowerCodeCharts == currentLowerCodeChartSettings && lowerMidCodeCharts == currentLowerMidCodeChartSettings && midCodeCharts == currentMidCodeChartSettings && upperMidCodeCharts == currentUpperMidCodeChartSettings && upperCodeCharts == currentUpperCodeChartSettings)
{
return;
}
AcquireWriteLock();
try
{
characterValues = SafeList.Generate(65536, new SafeList.GenerateSafeValue(SafeList.HashThenValueGenerator));
SafeList.PunchUnicodeThrough(ref characterValues, lowerCodeCharts, lowerMidCodeCharts, midCodeCharts, upperMidCodeCharts, upperCodeCharts);
ApplyHtmlSpecificValues();
currentLowerCodeChartSettings = lowerCodeCharts;
currentLowerMidCodeChartSettings = lowerMidCodeCharts;
currentMidCodeChartSettings = midCodeCharts;
currentUpperMidCodeChartSettings = upperMidCodeCharts;
currentUpperCodeChartSettings = upperCodeCharts;
}
finally
{
ReleaseWriteLock();
}
}
/// <summary>
/// Initializes the LDAP filter safe list.
/// </summary>
/// <returns>The LDAP filter safe list.</returns>
private static char[][] InitialiseFilterSafeList()
{
char[][] result = SafeList.Generate(255, new SafeList.GenerateSafeValue(SafeList.SlashThenHexValueGenerator));
SafeList.PunchSafeList(ref result, FilterEncodingSafeList());
return(result);
}
/// <summary>
/// Encodes input strings for use in HTML.
/// </summary>
/// <param name="input">String to be encoded</param>
/// <param name="useNamedEntities">Value indicating if the HTML 4.0 named entities should be used.</param>
/// <param name="encoderTweak">A <see cref="T:Microsoft.Security.Application.MethodSpecificEncoder" /> function, if needed.</param>
/// <returns>
/// Encoded string for use in HTML.
/// </returns>
private static string HtmlEncode(string input, bool useNamedEntities, MethodSpecificEncoder encoderTweak)
{
if (string.IsNullOrEmpty(input))
{
return(input);
}
if (characterValues == null)
{
InitialiseSafeList();
}
char[][] array = null;
if (useNamedEntities)
{
array = namedEntitiesLazy.Value;
}
StringBuilder outputStringBuilder = EncoderUtil.GetOutputStringBuilder(input.Length, 10);
AcquireReadLock();
try
{
Utf16StringReader utf16StringReader = new Utf16StringReader(input);
while (true)
{
int num = utf16StringReader.ReadNextScalarValue();
if (num < 0)
{
break;
}
if (num > 65535)
{
char[] value = SafeList.HashThenValueGenerator(num);
outputStringBuilder.Append('&');
outputStringBuilder.Append(value);
outputStringBuilder.Append(';');
}
else
{
char c = (char)num;
char[] value2;
if (encoderTweak != null && encoderTweak(c, out value2))
{
outputStringBuilder.Append(value2);
}
else if (useNamedEntities && array[num] != null)
{
char[] value3 = array[num];
outputStringBuilder.Append('&');
outputStringBuilder.Append(value3);
outputStringBuilder.Append(';');
}
else if (characterValues[num] != null)
{
char[] value4 = characterValues[num];
outputStringBuilder.Append('&');
outputStringBuilder.Append(value4);
outputStringBuilder.Append(';');
}
else
{
outputStringBuilder.Append(c);
}
}
}
}
finally
{
ReleaseReadLock();
}
return(outputStringBuilder.ToString());
}
/// <summary>
/// Initializes the Url Path safe list.
/// </summary>
/// <returns>A list of characters and their encoded values for URL encoding.</returns>
private static char[][] InitialisePathSafeList()
{
char[][] result = SafeList.Generate(255, new SafeList.GenerateSafeValue(SafeList.PercentThenHexValueGenerator));
SafeList.PunchSafeList(ref result, UrlPathSafeList());
return(result);
}
/// <summary>
/// Initializes the CSS safe list.
/// </summary>
/// <returns>
/// The CSS safe list.
/// </returns>
private static char[][] InitialiseSafeList()
{
char[][] result = SafeList.Generate(255, new SafeList.GenerateSafeValue(SafeList.SlashThenSixDigitHexValueGenerator));
SafeList.PunchSafeList(ref result, CssSafeList());
return(result);
}
