/// <summary>
/// Initializes and executes request and handles response.
/// </summary>
internal BrowserInfo ExecuteRequest(string url, string method, string contentType, PostDataCollection postData)
{
BrowserInfo browserInfo = new BrowserInfo();
HttpWebRequest request = this._webRequestor.CreateRequest(url);
request.Method = method.ToUpperInvariant();
// Note: cookies should be set before ContentType (request reorganize headers and cookies after that)
request.AddCookies(this._currentCookies);
// Note: content type (and length) should be set before data sent to the request stream
if (!string.IsNullOrEmpty(contentType))
{
request.ContentType = contentType;
}
string requestData = "";
if ((request.Method.Equals("post", StringComparison.OrdinalIgnoreCase) ||
request.Method.Equals("put", StringComparison.OrdinalIgnoreCase)) &&
postData != null)
{
if (postData.HasFilesToUpload)
{
//request.KeepAlive = true;
// Note: AddMultipartRequestData sets corresponding ContentType
requestData = request.AddMultipartRequestData(postData, this._fileSystem);
}
else
{
requestData = request.AddStandardRequestData(postData.GetPostDataString());
}
}
// fire event before request has been sent
RequestSendingEventArgs args = new RequestSendingEventArgs(request, requestData);
OnRequestSending(args);
request = args.Request;
HttpWebResponse response = null;
try
{
// execute request
response = this._webRequestor.ExecuteRequest(request);
}
catch (WebException e)
{
// We catch only WebException here. In this case there should be valid error page,
// which we want to obtain from the Response. If there was different type of exception,
// or we have another exception while reading response, then we let it go through.
if (e.Response != null)
{
response = (HttpWebResponse)e.Response;
}
else
{
throw;
}
}
// get raw body
string body = GetStringFromStream(response.GetResponseStream(), Encoding.UTF8);
// fire event after responce has been received
OnResponseReceived(new ResponseReceivedEventArgs(response, body));
if (!string.IsNullOrEmpty(body))
{
// store response body
browserInfo.Data = "<BrowserEmulatorRoot>" + body + "</BrowserEmulatorRoot>";
// remember current URL
this._currentUri = response.ResponseUri;
return(browserInfo);
}
throw new InvalidOperationException("Response did not contain html markup.");
}
