Esempio n. 1
0
        /// <summary>
        /// Provides the path string escaped in a way which is correct for combining into the URI representation.
        /// </summary>
        /// <returns>The escaped path value</returns>
        public string ToUriComponent()
        {
            if (!HasValue)
            {
                return(string.Empty);
            }

            var value = _value;
            var i     = 0;

            for (; i < value.Length; i++)
            {
                if (!PathStringHelper.IsValidPathChar(value[i]) || PathStringHelper.IsPercentEncodedChar(value, i))
                {
                    break;
                }
            }

            if (i < value.Length)
            {
                return(ToEscapedUriComponent(value, i));
            }

            return(value);
        }
Esempio n. 2
0
        private static string ToEscapedUriComponent(string value, int i)
        {
            StringBuilder buffer = null;

            var start            = 0;
            var count            = i;
            var requiresEscaping = false;

            while (i < value.Length)
            {
                var isPercentEncodedChar = PathStringHelper.IsPercentEncodedChar(value, i);
                if (PathStringHelper.IsValidPathChar(value[i]) || isPercentEncodedChar)
                {
                    if (requiresEscaping)
                    {
                        // the current segment requires escape
                        if (buffer == null)
                        {
                            buffer = new StringBuilder(value.Length * 3);
                        }

                        buffer.Append(Uri.EscapeDataString(value.Substring(start, count)));

                        requiresEscaping = false;
                        start            = i;
                        count            = 0;
                    }

                    if (isPercentEncodedChar)
                    {
                        count += 3;
                        i     += 3;
                    }
                    else
                    {
                        count++;
                        i++;
                    }
                }
                else
                {
                    if (!requiresEscaping)
                    {
                        // the current segment doesn't require escape
                        if (buffer == null)
                        {
                            buffer = new StringBuilder(value.Length * 3);
                        }

                        buffer.Append(value, start, count);

                        requiresEscaping = true;
                        start            = i;
                        count            = 0;
                    }

                    count++;
                    i++;
                }
            }

            if (count == value.Length && !requiresEscaping)
            {
                return(value);
            }
            else
            {
                if (count > 0)
                {
                    if (buffer == null)
                    {
                        buffer = new StringBuilder(value.Length * 3);
                    }

                    if (requiresEscaping)
                    {
                        buffer.Append(Uri.EscapeDataString(value.Substring(start, count)));
                    }
                    else
                    {
                        buffer.Append(value, start, count);
                    }
                }

                return(buffer.ToString());
            }
        }