Exemple #1
0
        protected internal virtual byte[] UrlEncode(byte[] bytes, int offset, int count)
        {
            if (!ValidateUrlEncodingParameters(bytes, offset, count))
            {
                return(null);
            }

            int cSpaces = 0;
            int cUnsafe = 0;

            // count them first
            for (int i = 0; i < count; i++)
            {
                char ch = (char)bytes[offset + i];

                if (ch == ' ')
                {
                    cSpaces++;
                }
                else if (!HttpEncoderUtility.IsUrlSafeChar(ch))
                {
                    cUnsafe++;
                }
            }

            // nothing to expand?
            if (cSpaces == 0 && cUnsafe == 0)
            {
                return(bytes);
            }

            // expand not 'safe' characters into %XX, spaces to +s
            byte[] expandedBytes = new byte[count + cUnsafe * 2];
            int    pos           = 0;

            for (int i = 0; i < count; i++)
            {
                byte b  = bytes[offset + i];
                char ch = (char)b;

                if (HttpEncoderUtility.IsUrlSafeChar(ch))
                {
                    expandedBytes[pos++] = b;
                }
                else if (ch == ' ')
                {
                    expandedBytes[pos++] = (byte)'+';
                }
                else
                {
                    expandedBytes[pos++] = (byte)'%';
                    expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex((b >> 4) & 0xf);
                    expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex(b & 0x0f);
                }
            }

            return(expandedBytes);
        }
        protected internal virtual byte[] UrlEncode(byte[] bytes, int offset, int count)
        {
            if (!ValidateUrlEncodingParameters(bytes, offset, count))
            {
                return(null);
            }
            int num  = 0;
            int num2 = 0;

            for (int i = 0; i < count; i++)
            {
                char ch = (char)bytes[offset + i];
                if (ch == ' ')
                {
                    num++;
                }
                else if (!HttpEncoderUtility.IsUrlSafeChar(ch))
                {
                    num2++;
                }
            }
            if ((num == 0) && (num2 == 0))
            {
                return(bytes);
            }
            byte[] buffer = new byte[count + (num2 * 2)];
            int    num4   = 0;

            for (int j = 0; j < count; j++)
            {
                byte num6 = bytes[offset + j];
                char ch2  = (char)num6;
                if (HttpEncoderUtility.IsUrlSafeChar(ch2))
                {
                    buffer[num4++] = num6;
                }
                else if (ch2 == ' ')
                {
                    buffer[num4++] = 0x2b;
                }
                else
                {
                    buffer[num4++] = 0x25;
                    buffer[num4++] = (byte)HttpEncoderUtility.IntToHex((num6 >> 4) & 15);
                    buffer[num4++] = (byte)HttpEncoderUtility.IntToHex(num6 & 15);
                }
            }
            return(buffer);
        }
Exemple #3
0
        private static byte[] UrlEncodeNonAscii(byte[] bytes, int offset, int count, bool alwaysCreateNewReturnValue)
        {
            if (!ValidateUrlEncodingParameters(bytes, offset, count))
            {
                return(null);
            }

            int cNonAscii = 0;

            // count them first
            for (int i = 0; i < count; i++)
            {
                if (IsNonAsciiByte(bytes[offset + i]))
                {
                    cNonAscii++;
                }
            }

            // nothing to expand?
            if (!alwaysCreateNewReturnValue && cNonAscii == 0)
            {
                return(bytes);
            }

            // expand not 'safe' characters into %XX, spaces to +s
            byte[] expandedBytes = new byte[count + cNonAscii * 2];
            int    pos           = 0;

            for (int i = 0; i < count; i++)
            {
                byte b = bytes[offset + i];

                if (IsNonAsciiByte(b))
                {
                    expandedBytes[pos++] = (byte)'%';
                    expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex((b >> 4) & 0xf);
                    expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex(b & 0x0f);
                }
                else
                {
                    expandedBytes[pos++] = b;
                }
            }

            return(expandedBytes);
        }
Exemple #4
0
        internal static string?UrlEncodeUnicode(string?value)
        {
            if (value == null)
            {
                return(null);
            }

            int l = value.Length;

            StringBuilder sb = new StringBuilder(l);

            for (int i = 0; i < l; i++)
            {
                char ch = value[i];

                if ((ch & 0xff80) == 0)
                {  // 7 bit?
                    if (HttpEncoderUtility.IsUrlSafeChar(ch))
                    {
                        sb.Append(ch);
                    }
                    else if (ch == ' ')
                    {
                        sb.Append('+');
                    }
                    else
                    {
                        sb.Append('%');
                        sb.Append(HttpEncoderUtility.IntToHex((ch >> 4) & 0xf));
                        sb.Append(HttpEncoderUtility.IntToHex((ch) & 0xf));
                    }
                }
                else
                { // arbitrary Unicode?
                    sb.Append("%u");
                    sb.Append(HttpEncoderUtility.IntToHex((ch >> 12) & 0xf));
                    sb.Append(HttpEncoderUtility.IntToHex((ch >> 8) & 0xf));
                    sb.Append(HttpEncoderUtility.IntToHex((ch >> 4) & 0xf));
                    sb.Append(HttpEncoderUtility.IntToHex((ch) & 0xf));
                }
            }

            return(sb.ToString());
        }
        internal string UrlEncodeUnicode(string value, bool ignoreAscii)
        {
            if (value == null)
            {
                return(null);
            }
            int           length  = value.Length;
            StringBuilder builder = new StringBuilder(length);

            for (int i = 0; i < length; i++)
            {
                char ch = value[i];
                if ((ch & 0xff80) == 0)
                {
                    if (ignoreAscii || HttpEncoderUtility.IsUrlSafeChar(ch))
                    {
                        builder.Append(ch);
                    }
                    else if (ch == ' ')
                    {
                        builder.Append('+');
                    }
                    else
                    {
                        builder.Append('%');
                        builder.Append(HttpEncoderUtility.IntToHex((ch >> 4) & '\x000f'));
                        builder.Append(HttpEncoderUtility.IntToHex(ch & '\x000f'));
                    }
                }
                else
                {
                    builder.Append("%u");
                    builder.Append(HttpEncoderUtility.IntToHex((ch >> 12) & '\x000f'));
                    builder.Append(HttpEncoderUtility.IntToHex((ch >> 8) & '\x000f'));
                    builder.Append(HttpEncoderUtility.IntToHex((ch >> 4) & '\x000f'));
                    builder.Append(HttpEncoderUtility.IntToHex(ch & '\x000f'));
                }
            }
            return(builder.ToString());
        }
        internal byte[] UrlEncodeNonAscii(byte[] bytes, int offset, int count, bool alwaysCreateNewReturnValue)
        {
            if (!ValidateUrlEncodingParameters(bytes, offset, count))
            {
                return(null);
            }
            int num = 0;

            for (int i = 0; i < count; i++)
            {
                if (IsNonAsciiByte(bytes[offset + i]))
                {
                    num++;
                }
            }
            if (!alwaysCreateNewReturnValue && (num == 0))
            {
                return(bytes);
            }
            byte[] buffer = new byte[count + (num * 2)];
            int    num3   = 0;

            for (int j = 0; j < count; j++)
            {
                byte b = bytes[offset + j];
                if (IsNonAsciiByte(b))
                {
                    buffer[num3++] = 0x25;
                    buffer[num3++] = (byte)HttpEncoderUtility.IntToHex((b >> 4) & 15);
                    buffer[num3++] = (byte)HttpEncoderUtility.IntToHex(b & 15);
                }
                else
                {
                    buffer[num3++] = b;
                }
            }
            return(buffer);
        }
Exemple #7
0
        private static byte[] UrlEncode(byte[] bytes, int offset, int count)
        {
            if (!ValidateUrlEncodingParameters(bytes, offset, count))
            {
                return(null);
            }

            int cSpaces = 0;
            int cUnsafe = 0;

            // count them first
            for (int i = 0; i < count; i++)
            {
                char ch = (char)bytes[offset + i];

                if (ch == ' ')
                {
                    cSpaces++;
                }
                else if (!HttpEncoderUtility.IsUrlSafeChar(ch))
                {
                    cUnsafe++;
                }
            }

            // nothing to expand?
            if (cSpaces == 0 && cUnsafe == 0)
            {
                // DevDiv 912606: respect "offset" and "count"
                if (0 == offset && bytes.Length == count)
                {
                    return(bytes);
                }
                else
                {
                    var subarray = new byte[count];
                    Buffer.BlockCopy(bytes, offset, subarray, 0, count);
                    return(subarray);
                }
            }

            // expand not 'safe' characters into %XX, spaces to +s
            byte[] expandedBytes = new byte[count + cUnsafe * 2];
            int    pos           = 0;

            for (int i = 0; i < count; i++)
            {
                byte b  = bytes[offset + i];
                char ch = (char)b;

                if (HttpEncoderUtility.IsUrlSafeChar(ch))
                {
                    expandedBytes[pos++] = b;
                }
                else if (ch == ' ')
                {
                    expandedBytes[pos++] = (byte)'+';
                }
                else
                {
                    expandedBytes[pos++] = (byte)'%';
                    expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex((b >> 4) & 0xf);
                    expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex(b & 0x0f);
                }
            }

            return(expandedBytes);
        }