/// <summary>
/// Returns the response category as one of three values
/// FileTools.TEXT
/// FileTools.IMAGE
/// FileTools.OTHER
///
/// First tests the response object.
///
/// If response.ContentType determines that the value is
/// TEXT or IMAGE then that value is returned.
///
/// Otherwise, uri.FileExtension is tested using
/// FileTools.GetFileCategory
///
/// If that determines the answer then that is returned.
///
/// Otherwise, FileTools.OTHER is returned.
///
/// Assumption: The response is the result of requesting
/// the uri.
/// </summary>
/// <param name="uri">The uri to request</param>
/// <param name="response">The response to the request</param>
public static int ResponseCategory
(UriPlus uri, HttpWebResponse response)
{
int category = FileTools.OTHER;
// First test response.ContentType
if (response != null)
{
string contentType = response.ContentType;
if (!StringTools.IsTrivial(contentType))
{
if (contentType.StartsWith("text"))
{
category = FileTools.TEXT;
}
else if (contentType.StartsWith("image"))
{
category = FileTools.IMAGE;
}
else if (contentType.Contains("javascript"))
{
category = FileTools.TEXT;
}
else if (contentType.Contains("json"))
{
category = FileTools.TEXT;
}
else if (contentType.Contains("htm"))
{
category = FileTools.TEXT;
}
else if (contentType.StartsWith("application/xml"))
{
category = FileTools.TEXT;
}
}
}
// Only test uri.FileExtension if category did not change
if (category == FileTools.OTHER)
{
if (uri != null)
{
string extension = uri.FileExtension;
if (!StringTools.IsTrivial(extension))
{
category = FileTools.GetFileCategory(extension);
}
}
}
return(category);
}
/// <summary>
/// This method is obsolete because its uri parameter is
/// no longer unused.
///
/// This method is retained for backward compatibility.
///
/// Returns the response category as one of three values
/// FileTools.TEXT
/// FileTools.IMAGE
/// FileTools.OTHER
///
/// Tests the response object.
///
/// If response.ContentType determines that the value is
/// TEXT or IMAGE then that value is returned.
///
/// Otherwise, OTHER is returned.
/// </summary>
/// <param name="uri">The uri to request</param>
/// <param name="response">The response to the request</param>
public static int ResponseCategory(UriPlus uri, HttpWebResponse response)
{
return ResponseCategory(response);
}
/// <summary>
/// Returns the response category as one of three values
/// FileTools.TEXT
/// FileTools.IMAGE
/// FileTools.OTHER
///
/// First tests the response object.
///
/// If response.ContentType determines that the value is
/// TEXT or IMAGE then that value is returned.
///
/// Otherwise, uri.FileExtension is tested using
/// FileTools.GetFileCategory
///
/// If that determines the answer then that is returned.
///
/// Otherwise, FileTools.OTHER is returned.
///
/// Assumption: The response is the result of requesting
/// the uri.
/// </summary>
/// <param name="uri">The uri to request</param>
/// <param name="response">The response to the request</param>
public static int ResponseCategory
(UriPlus uri, HttpWebResponse response)
{
int category = FileTools.OTHER;
// First test response.ContentType
if (response != null)
{
string contentType = response.ContentType;
if (!StringTools.IsTrivial(contentType))
{
if (contentType.StartsWith("text"))
category = FileTools.TEXT;
else if (contentType.StartsWith("image"))
category = FileTools.IMAGE;
else if (contentType.Contains("javascript"))
category = FileTools.TEXT;
else if (contentType.Contains("json"))
category = FileTools.TEXT;
else if (contentType.Contains("htm"))
category = FileTools.TEXT;
else if (contentType.StartsWith("application/xml"))
category = FileTools.TEXT;
}
}
// Only test uri.FileExtension if category did not change
if (category == FileTools.OTHER)
{
if (uri != null)
{
string extension = uri.FileExtension;
if (!StringTools.IsTrivial(extension))
{
category = FileTools.GetFileCategory(extension);
}
}
}
return category;
}
/// <summary>
/// This method is obsolete because its uri parameter is
/// no longer unused.
///
/// This method is retained for backward compatibility.
///
/// Returns the response category as one of three values
/// FileTools.TEXT
/// FileTools.IMAGE
/// FileTools.OTHER
///
/// Tests the response object.
///
/// If response.ContentType determines that the value is
/// TEXT or IMAGE then that value is returned.
///
/// Otherwise, OTHER is returned.
/// </summary>
/// <param name="uri">The uri to request</param>
/// <param name="response">The response to the request</param>
public static int ResponseCategory
(UriPlus uri, HttpWebResponse response)
{
return(ResponseCategory(response));
}