/// <summary>
/// Releases the browser described by webRequestContext.
/// </summary>
/// <param name="webRequestContext">
/// The web request context.
/// </param>
public static void ReleaseBrowser(WebRequestContext webRequestContext)
{
if (webRequestContext.Browser != null)
{
ReleaseBrowser(webRequestContext.Browser);
webRequestContext.Browser = null;
}
}
/// <inheritdoc />
public WebRequestContext SendRequest(
ContextSendRequestParameter contextSendRequestParameter)
{
// create web request context to be returned
var webRequestContext = new WebRequestContext();
// create uri
Uri uri = CreateUri(contextSendRequestParameter.Url);
// execute a web request
BrowserNavigateToPage(contextSendRequestParameter, uri, webRequestContext);
return(webRequestContext);
}
/// <summary>
/// Browser navigate to page.
/// </summary>
/// <param name="contextSendRequestParameter">
/// The context send request parameter.
/// </param>
/// <param name="uri">
/// The uri.
/// </param>
/// <param name="webRequestContext">
/// The web request context.
/// </param>
private void BrowserNavigateToPage(
ContextSendRequestParameter contextSendRequestParameter,
Uri uri,
WebRequestContext webRequestContext)
{
webRequestContext.ResponseHolder = new HttpWebResponseHolder();
BrowserAbstract browser = null;
try
{
var browserManager = ObjectResolver.Resolve <IBrowserManager>();
// there is no browser pool created for this browser type
if (browserManager.AvailableBrowserTypes.All(t => t != contextSendRequestParameter.BrowserType))
{
return;
}
// try to acquire a browser if we don't have one already
browser = webRequestContext.Browser ??
browserManager.AcquireBrowser(contextSendRequestParameter.BrowserType);
if (browser == null)
{
Library.Logger.Logger.WriteWarning(
"Browser pool failed allocation (measured by BrowserPoolCounters.FailedAllocationsPerMinute).");
return;
}
// in case we acquired then set this in the request context
webRequestContext.Browser = browser;
// Add request cookies.
if (this.CurrentCookies.ContainsKey(uri.Host))
{
foreach (Cookie cookie in this.CurrentCookies[uri.Host])
{
browser.AddCookie(cookie.Name, cookie.Value, cookie.Domain, cookie.Path, cookie.Expires);
}
}
var stopWatch = new Stopwatch();
stopWatch.Start();
browser.NavigateTo(uri.OriginalString);
stopWatch.Stop();
// FireFox does not block on the presence of an alert dialog, so we manually check here.
string alertText;
browser.DismissedIfAlertDisplayed(out alertText);
browser.WaitForPageLoad(Constants.BrowserWaitForPageLoadInMilliseconds);
// check for messages again following page load - do this before querying other browser properties
browser.DismissedIfAlertDisplayed(out alertText);
var fiddlerResponseSessionKey = Library.Constants.FiddlerResponseSessionKey.FormatIc(
browser.ProcessId,
browser.Url);
// get fiddler response
var fiddlerResponse = FiddlerProxy.ResponseSession.ContainsKey(fiddlerResponseSessionKey)
? FiddlerProxy.ResponseSession[fiddlerResponseSessionKey].oResponse
: null;
var fiddlerRequest = FiddlerProxy.ResponseSession.ContainsKey(fiddlerResponseSessionKey)
? FiddlerProxy.ResponseSession[fiddlerResponseSessionKey].oRequest
: null;
// populate response holder
webRequestContext.ResponseHolder.StatusCode = fiddlerResponse != null
? (HttpStatusCode)fiddlerResponse.headers.HTTPResponseCode
: HttpStatusCode.OK;
var source = browser.PageSource;
webRequestContext.ResponseHolder.ResponseContent = source;
webRequestContext.ResponseHolder.RequestAbsolutUri = uri.AbsoluteUri;
webRequestContext.ResponseHolder.RequestHost = uri.Host;
Uri resultUri;
if (Uri.TryCreate(browser.Url, UriKind.Absolute, out resultUri))
{
webRequestContext.ResponseHolder.ResponseUri = resultUri;
}
webRequestContext.ResponseHolder.ResponseDateTime = DateTime.UtcNow;
webRequestContext.ResponseHolder.RequestUserAgent =
contextSendRequestParameter.BrowserType.ToString();
webRequestContext.ResponseHolder.BrowserPageTitle = browser.PageTitle;
webRequestContext.ResponseHolder.ResponseContentType = "text/html";
webRequestContext.ResponseHolder.Latency = new TimeSpan(0, 0, 0, 0, (int)stopWatch.Elapsed.TotalMilliseconds);
// set headers from fiddler for this request
if (fiddlerRequest != null)
{
webRequestContext.ResponseHolder.RequestHeaders =
Regex.Replace(fiddlerRequest.headers.ToString().Trim(), @"[\u0000-\u001F]", string.Empty);
}
// set headers from fiddler for this response
if (fiddlerResponse != null)
{
webRequestContext.ResponseHolder.SetResponseFiddlerHeaders(fiddlerResponse.headers);
}
// set back response cookies
webRequestContext.ResponseHolder.Cookies = browser.AllCookies;
}
catch (Exception exception)
{
webRequestContext.ResponseHolder.HttpError = exception.Message;
CheckForUnexpectedDialog(uri, browser, exception);
}
}