/// <summary>
/// Creates a new HTTPHeader, which is a clone of the given response.
/// If the given HTTPHeader is not a response header this method returns null.
/// If the given HTTPHeader was initialized empty and is not yet complete this method returns null.
/// Otherwise it returns a clone of the given header.
/// That is, it will have the same HTTP version, status code and description.
/// Also, the headers will be a clone of the headers in the given response,
/// but changes to the new headers will not affect the original headers.
/// </summary>
/// <param name="response">
/// A complete HTTPHeader response instance to create a clone of.
/// </param>
/// <returns>
/// Null if given an improper parameter. A clone of the original HTTPHeader otherwise.
/// </returns>
public static HTTPHeader CreateResponse(HTTPHeader response)
{
if (response.isRequest)
{
return(null);
}
if (response.isEmpty)
{
if (!response.IsHeaderComplete())
{
return(null);
}
if (response.headers == null)
{
response.ParseResponse();
}
}
HTTPHeader clone = new HTTPHeader(false, false);
clone.httpVersion = response.httpVersion;
clone.statusCode = response.statusCode;
clone.statusDescription = response.statusDescription;
clone.headers = new Dictionary <String, String>(response.headers, StringComparer.OrdinalIgnoreCase);
return(clone);
}
/// <summary>
/// Creates a new HTTPHeader, which is a clone of the given request.
/// If the given HTTPHeader is not a request header this method returns null.
/// If the given HTTPHeader was initialized empty and is not yet complete this method returns null.
/// Otherwise it returns a clone of the given header.
/// That is, it will have the same HTTP version, request method and URL.
/// Also, the headers will be a clone of the headers in the given request,
/// but changes to the new headers will not affect the original headers.
/// </summary>
/// <param name="request">
/// A complete HTTPHeader request instance to create a clone of.
/// </param>
/// <returns>
/// Null if given an improper parameter. A clone of the original HTTPHeader otherwise.
/// </returns>
public static HTTPHeader CreateRequest(HTTPHeader request)
{
if (!request.isRequest)
{
return(null);
}
if (request.isEmpty)
{
if (!request.IsHeaderComplete())
{
return(null);
}
if (request.headers == null)
{
request.ParseRequest();
}
}
HTTPHeader clone = new HTTPHeader(true, false);
clone.httpVersion = request.httpVersion;
clone.requestMethod = request.requestMethod;
clone.requestURL = request.requestURL;
clone.headers = new Dictionary <String, String>(request.headers, StringComparer.OrdinalIgnoreCase);
return(clone);
}
/// <summary>
/// Creates a new HTTPHeader, initialized as a request with the given method and URL.
/// Use the setHeaderFieldValue method to set other HTTP header values,
/// and use the overriden ToString() method to get the full finished header.
/// </summary>
/// <param name="requestMethod">
/// The HTTP command (eg. "GET")
/// </param>
/// <param name="requestURL">
/// The HTTP request (eg. "index.html")
/// </param>
/// <returns>
/// A new HTTPHeader instance, initialized non-empty as a request with the given information.
/// </returns>
public static HTTPHeader CreateRequest(String requestMethod, String requestURL)
{
HTTPHeader request = new HTTPHeader(true, false);
request.requestMethod = requestMethod;
request.requestURL = requestURL;
return(request);
}
/// <summary>
/// Create a new HTTPHeader, initialized as a response with the given status code and description.
/// Use the setHeaderFieldValue method to set other HTTP header values,
/// and use the overriden ToString method to get the full finished header.
/// </summary>
/// <param name="statusCode">
/// The HTTP status code (eg. 404)
/// </param>
/// <param name="statusDescription">
/// The HTTP status description (eg. "Not Found")
/// </param>
/// <returns>
/// A new HTTPHeader instance, initialized non-empty as a response with the given information.
/// </returns>
public static HTTPHeader CreateResponse(int statusCode, String statusDescription)
{
HTTPHeader response = new HTTPHeader(false, false);
response.statusCode = statusCode;
response.statusDescription = statusDescription;
return(response);
}
/// <summary>
/// Creates a new HTTPHeader, which is a clone of the given response.
/// If the given HTTPHeader is not a response header this method returns null.
/// If the given HTTPHeader was initialized empty and is not yet complete this method returns null.
/// Otherwise it returns a clone of the given header.
/// That is, it will have the same HTTP version, status code and description.
/// Also, the headers will be a clone of the headers in the given response,
/// but changes to the new headers will not affect the original headers.
/// </summary>
/// <param name="response">
/// A complete HTTPHeader response instance to create a clone of.
/// </param>
/// <returns>
/// Null if given an improper parameter. A clone of the original HTTPHeader otherwise.
/// </returns>
public static HTTPHeader CreateResponse(HTTPHeader response)
{
if (response.isRequest) return null;
if (response.isEmpty)
{
if (!response.IsHeaderComplete()) return null;
if (response.headers == null) response.ParseResponse();
}
HTTPHeader clone = new HTTPHeader(false, false);
clone.httpVersion = response.httpVersion;
clone.statusCode = response.statusCode;
clone.statusDescription = response.statusDescription;
clone.headers = new Dictionary<String, String>(response.headers, StringComparer.OrdinalIgnoreCase);
return clone;
}
/// <summary>
/// Create a new HTTPHeader, initialized as a response with the given status code and description.
/// Use the setHeaderFieldValue method to set other HTTP header values,
/// and use the overriden ToString method to get the full finished header.
/// </summary>
/// <param name="statusCode">
/// The HTTP status code (eg. 404)
/// </param>
/// <param name="statusDescription">
/// The HTTP status description (eg. "Not Found")
/// </param>
/// <returns>
/// A new HTTPHeader instance, initialized non-empty as a response with the given information.
/// </returns>
public static HTTPHeader CreateResponse(int statusCode, String statusDescription)
{
HTTPHeader response = new HTTPHeader(false, false);
response.statusCode = statusCode;
response.statusDescription = statusDescription;
return response;
}
/// <summary>
/// Creates a new HTTPHeader, which is a clone of the given request.
/// If the given HTTPHeader is not a request header this method returns null.
/// If the given HTTPHeader was initialized empty and is not yet complete this method returns null.
/// Otherwise it returns a clone of the given header.
/// That is, it will have the same HTTP version, request method and URL.
/// Also, the headers will be a clone of the headers in the given request,
/// but changes to the new headers will not affect the original headers.
/// </summary>
/// <param name="request">
/// A complete HTTPHeader request instance to create a clone of.
/// </param>
/// <returns>
/// Null if given an improper parameter. A clone of the original HTTPHeader otherwise.
/// </returns>
public static HTTPHeader CreateRequest(HTTPHeader request)
{
if (!request.isRequest) return null;
if (request.isEmpty)
{
if (!request.IsHeaderComplete()) return null;
if (request.headers == null) request.ParseRequest();
}
HTTPHeader clone = new HTTPHeader(true, false);
clone.httpVersion = request.httpVersion;
clone.requestMethod = request.requestMethod;
clone.requestURL = request.requestURL;
clone.headers = new Dictionary<String, String>(request.headers, StringComparer.OrdinalIgnoreCase);
return clone;
}
/// <summary>
/// Creates a new HTTPHeader, initialized as a request with the given method and URL.
/// Use the setHeaderFieldValue method to set other HTTP header values,
/// and use the overriden ToString() method to get the full finished header.
/// </summary>
/// <param name="requestMethod">
/// The HTTP command (eg. "GET")
/// </param>
/// <param name="requestURL">
/// The HTTP request (eg. "index.html")
/// </param>
/// <returns>
/// A new HTTPHeader instance, initialized non-empty as a request with the given information.
/// </returns>
public static HTTPHeader CreateRequest(String requestMethod, String requestURL)
{
HTTPHeader request = new HTTPHeader(true, false);
request.requestMethod = requestMethod;
request.requestURL = requestURL;
return request;
}
/// <summary>
/// Creates a new empty HTTPHeader, initialized as a response.
/// Call appendByte(s) to add incoming data to the header,
/// and use IsHeaderComplete to determine when you've received a full header.
/// Finally, use the get methods to extract the desired information.
/// </summary>
/// <returns>
/// A new HTTPHeader instance, initialized empty as a response.
/// </returns>
public static HTTPHeader CreateEmptyResponse()
{
HTTPHeader response = new HTTPHeader(false, true);
return response;
}
/// <summary>
/// Creates a new empty HTTPHeader, initialized as a request.
/// Call appendByte(s) to add incoming data to the header,
/// and use IsHeaderComplete to determine when you've received a full header.
/// Finally, use the get methods to extract the desired information.
/// </summary>
/// <returns>
/// A new HTTPHeader instance, initialized empty as a request.
/// </returns>
public static HTTPHeader CreateEmptyRequest()
{
HTTPHeader request = new HTTPHeader(true, true);
return request;
}
private void SendRequest()
{
// Record when we first started the download
headerLength = 0;
startTime = DateTime.Now;
// Create a HTTP request using the Deusty.Net.HTTP.HTTPHeader class.
// The HTTP protocol is fairly straightforward, but this class helps hide protocol
// specific information that we're not really concerned with for this AsyncSocket sameple.
HTTPHeader request = HTTPHeader.CreateRequest("GET", FETCH_REQUEST);
request.SetHeaderFieldValue("Host", FETCH_HOST);
String requestStr = request.ToString();
LogInfo("Sending Request:");
LogMessage(requestStr);
// Convert HTTPHeader object to a byte array.
byte[] requestData = Encoding.UTF8.GetBytes(requestStr);
Console.WriteLine(Data.ToHexString(requestData));
// Now write the data over the socket.
// This call is asynchronous, and returns immediately.
// When finished writing, the asyncSocket_DidWrite method is called.
asyncSocket.Write(requestData, WRITE_TIMEOUT, HTTP_HEADERS);
// Setup http response
response = HTTPHeader.CreateEmptyResponse();
// And start reading in the response
asyncSocket.Read(AsyncSocket.CRLFData, READ_HEADER_TIMEOUT, HTTP_HEADERS);
// Reset progress bar
progressBar.Value = 0;
}
/// <summary>
/// Creates a new empty HTTPHeader, initialized as a response.
/// Call appendByte(s) to add incoming data to the header,
/// and use IsHeaderComplete to determine when you've received a full header.
/// Finally, use the get methods to extract the desired information.
/// </summary>
/// <returns>
/// A new HTTPHeader instance, initialized empty as a response.
/// </returns>
public static HTTPHeader CreateEmptyResponse()
{
HTTPHeader response = new HTTPHeader(false, true);
return(response);
}
/// <summary>
/// Creates a new empty HTTPHeader, initialized as a request.
/// Call appendByte(s) to add incoming data to the header,
/// and use IsHeaderComplete to determine when you've received a full header.
/// Finally, use the get methods to extract the desired information.
/// </summary>
/// <returns>
/// A new HTTPHeader instance, initialized empty as a request.
/// </returns>
public static HTTPHeader CreateEmptyRequest()
{
HTTPHeader request = new HTTPHeader(true, true);
return(request);
}
