/// <summary>
/// Diffs the request or response headers
/// </summary>
/// <param name="result"></param>
/// <param name="firstText"></param>
/// <param name="secondText"></param>
/// <param name="firstBasePos">The starting position for the first text relative to the entire request/response text</param>
/// <param name="secondBasePos">The starting position for the second text relative to the entire request/response text</param>
/// <returns></returns>
private RequestsDifferResult DiffHeaders(RequestsDifferResult result, string firstText, string secondText, int firstBasePos, int secondBasePos)
{
//next diff the headers
HeadersDiffCollection firstHeaders = new HeadersDiffCollection();
HeadersDiffCollection secondHeaders = new HeadersDiffCollection();
firstHeaders.BasePosition = firstBasePos;
secondHeaders.BasePosition = secondBasePos;
firstHeaders.Import(firstText);
secondHeaders.Import(secondText);
GenericDiffer headersDiffer = new GenericDiffer();
headersDiffer.Properties.Sorted = true;
headersDiffer.Properties.CaseInSensitiveSort = true;
headersDiffer.AddTask(firstHeaders);
headersDiffer.AddTask(secondHeaders);
headersDiffer.DoDiff();
//obtain the resulting differences and add them to the result
result = AppendDiffs(result, headersDiffer);
return(result);
}
/// <summary>
/// Imports a string containing Http Headers to a collection of HttpDiffObjects
/// </summary>
/// <param name="text">Request or response text</param>
/// <exception cref="DiffException"></exception>
public override void Import(string text)
{
_items = new List <IDiffObject>();
_differences = new HeadersDiffCollection();
_commonElements = new HeadersDiffCollection();
//the headers start after the first new line (following the request line)
int nlIndex = text.IndexOf('\n') + 1;
_basePosition += nlIndex;
int headersEnd = text.IndexOf("\r\n\r\n");
if (headersEnd == -1)
{
headersEnd = text.IndexOf("\n\n");
if (headersEnd == -1)
{
headersEnd = text.Length;
}
}
string headersText = String.Empty;
if (headersEnd > nlIndex)
{
headersText = text.Substring(nlIndex, headersEnd - nlIndex);
}
int i, n = headersText.Length;
StringBuilder currLine = new StringBuilder(ESTIMATED_LINE_SIZE);
long pos = _basePosition;
for (i = 0; i < n; i++)
{
if (headersText[i] == '\r' || headersText[i] == '\n')
{
string val = currLine.ToString();
if (val != String.Empty)
{
AddNewItem(headersText, i, pos, val);
currLine = new StringBuilder(ESTIMATED_LINE_SIZE);
}
pos = _basePosition + i + 1;
}
else
{
currLine.Append(headersText[i]);
}
}
//if the string finished without a \n
if (currLine.Length > 0)
{
AddNewItem(headersText, n - 2, n - currLine.Length + _basePosition, currLine.ToString());
}
}
