// Encode a string using RFC 5987 encoding.
// encoding'lang'PercentEncodedSpecials
private string Encode5987(string input)
{
StringBuilder builder = new StringBuilder("utf-8\'\'");
foreach (char c in input)
{
// attr-char = ALPHA / DIGIT / "!" / "#" / "$" / "&" / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
// ; token except ( "*" / "'" / "%" )
if (c > 0x7F) // Encodes as multiple utf-8 bytes
{
byte[] bytes = Encoding.UTF8.GetBytes(c.ToString());
foreach (byte b in bytes)
{
builder.Append(UriShim.HexEscape((char)b));
}
}
else if (!HttpRuleParser.IsTokenChar(c) || c == '*' || c == '\'' || c == '%')
{
// ASCII - Only one encoded byte.
builder.Append(UriShim.HexEscape(c));
}
else
{
builder.Append(c);
}
}
return(builder.ToString());
}
internal static string Encode5987(string input)
{
StringBuilder stringBuilder = StringBuilderCache.Acquire(16);
byte[] numArray = ArrayPool <byte> .Shared.Rent(Encoding.UTF8.GetMaxByteCount(input.Length));
int bytes = Encoding.UTF8.GetBytes(input, 0, input.Length, numArray, 0);
stringBuilder.Append("utf-8''");
for (int index = 0; index < bytes; ++index)
{
byte c = numArray[index];
if (c > (byte)127)
{
HeaderUtilities.AddHexEscaped(c, stringBuilder);
}
else if (!HttpRuleParser.IsTokenChar((char)c) || c == (byte)42 || (c == (byte)39 || c == (byte)37))
{
HeaderUtilities.AddHexEscaped(c, stringBuilder);
}
else
{
stringBuilder.Append((char)c);
}
}
Array.Clear((Array)numArray, 0, bytes);
ArrayPool <byte> .Shared.Return(numArray, false);
return(StringBuilderCache.GetStringAndRelease(stringBuilder));
}
public void IsTokenChar_IterateArrayWithAllValidTokenChars_AllCharsConsideredValid()
{
for (int i = 0; i < ValidTokenChars.Length; i++)
{
// TODO: This test should be a [Theory]
Assert.True(HttpRuleParser.IsTokenChar(ValidTokenChars[i]));
}
}
public void IsTokenChar_IterateArrayWithAllInvalidTokenChars_AllCharsConsideredInvalid()
{
// All octets not in 'validTokenChars' must be considered invalid characters.
for (int i = 0; i < 256; i++)
{
if (ValidTokenChars.IndexOf((char)i) == -1)
{
// TODO: This test should be a [Theory]
Assert.False(HttpRuleParser.IsTokenChar((char)i));
}
}
}
// Encode a string using RFC 5987 encoding.
// encoding'lang'PercentEncodedSpecials
internal static string Encode5987(string input)
{
// Encode a string using RFC 5987 encoding.
// encoding'lang'PercentEncodedSpecials
var builder = new ValueStringBuilder(stackalloc char[256]);
byte[] utf8bytes = ArrayPool <byte> .Shared.Rent(Encoding.UTF8.GetMaxByteCount(input.Length));
int utf8length = Encoding.UTF8.GetBytes(input, 0, input.Length, utf8bytes, 0);
builder.Append("utf-8\'\'");
for (int i = 0; i < utf8length; i++)
{
byte utf8byte = utf8bytes[i];
// attr-char = ALPHA / DIGIT / "!" / "#" / "$" / "&" / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
// ; token except ( "*" / "'" / "%" )
if (utf8byte > 0x7F) // Encodes as multiple utf-8 bytes
{
AddHexEscaped(utf8byte, ref builder);
}
else if (!HttpRuleParser.IsTokenChar((char)utf8byte) || utf8byte == '*' || utf8byte == '\'' || utf8byte == '%')
{
// ASCII - Only one encoded byte.
AddHexEscaped(utf8byte, ref builder);
}
else
{
builder.Append((char)utf8byte);
}
}
Array.Clear(utf8bytes, 0, utf8length);
ArrayPool <byte> .Shared.Return(utf8bytes);
return(builder.ToString());
}
internal static bool IsInputEncoded5987(string input, out string output)
{
// Encode a string using RFC 5987 encoding.
// encoding'lang'PercentEncodedSpecials
bool wasEncoded = false;
StringBuilder builder = StringBuilderCache.Acquire();
builder.Append("utf-8\'\'");
foreach (char c in input)
{
// attr-char = ALPHA / DIGIT / "!" / "#" / "$" / "&" / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
// ; token except ( "*" / "'" / "%" )
if (c > 0x7F) // Encodes as multiple utf-8 bytes
{
byte[] bytes = Encoding.UTF8.GetBytes(c.ToString());
foreach (byte b in bytes)
{
AddHexEscaped((char)b, builder);
wasEncoded = true;
}
}
else if (!HttpRuleParser.IsTokenChar(c) || c == '*' || c == '\'' || c == '%')
{
// ASCII - Only one encoded byte.
AddHexEscaped(c, builder);
wasEncoded = true;
}
else
{
builder.Append(c);
}
}
output = StringBuilderCache.GetStringAndRelease(builder);
return(wasEncoded);
}
public void IsTokenChar_InvalidTokenChars_ConsideredInvalid(char token)
{
Assert.False(HttpRuleParser.IsTokenChar(token));
}
public void IsTokenChar_ValidTokenChars_ConsideredValid(char token)
{
Assert.True(HttpRuleParser.IsTokenChar(token));
}
