/*
* Returns an embedded parameter in the query string that
* is introduced by a string specified here as param.
*
* Further the embedded parameter must be contained in a
* pair of matching bounding characters such as:
*
* " ' |
*
* The bounding character may not appear in the embedded
* parameter.
*
* The bounding character is determined as the first
* character that occurs after param.
*
* The embedded parameter is the substring between that
* first character and its next occurence in the query
* string.
*
*
* For example, if the full url is:
*
* http://www.abc.com/seek.htm?url="http://www.xyz.com?a=1&b=2"
*
* then the call:
*
* RequestTools.EmbeddedQueryParam(request, "url=")
*
* returns:
*
* http://www.xyz.com?a=1&b=2
*
*
* This method uses StringTools.FindParameter.
*
*
* Note that this method works in situations where the
* simple application of the method QueryParts will fail.
*/
public static string EmbeddedQueryParam
(HttpRequest request, string param)
{
string query = Query(request);
return(StringTools.FindParameter(query, param, false));
}
/*
* Returns an embedded parameter with introduction string
* param if one exists within the query string of the
* given url.
*
* The conventions of
*
* StringTools.FindParameter
*
* should be followed.
*/
public static string GetEmbeddedParameter
(string url, string param, bool unescape)
{
if (StringTools.IsTrivial(url) || StringTools.IsTrivial(param))
{
return("");
}
int qmark = url.IndexOf('?');
if (qmark < 0)
{
return("");
}
string query = url.Substring(qmark + 1);
if (query.Length == 0)
{
return("");
}
return(StringTools.FindParameter(query, param, unescape));
}
