private void DownloadNodeCss_(CssTreeNode root, string[] testIds)
{
if (allImportRules_.Count > 0)
{
foreach (ImportRule importRule in allImportRules_)
{
CssTreeNode cssTreeNode = new CssTreeNode(logger_);
decendets_.Add(cssTreeNode);
string url = importRule.Href;
DownloadNodeCss_(root, cssTreeNode, url, testIds);
}
}
}
private static void ParseCss_(CssTreeNode targetCssTreeNode, string css)
{
Parser parser = new Parser();
StyleSheet stylesheet = parser.Parse(css);
StringBuilder sb = new StringBuilder(2048);
foreach (RuleSet rule in stylesheet.Rules)
{
if (rule.RuleType != CssParser.Model.RuleType.Import)
{
sb.Append(rule.ToString());
}
}
targetCssTreeNode.allImportRules_ = stylesheet.ImportDirectives;
targetCssTreeNode.css_ = sb.ToString();
}
private void OnCssDownloadComplete_(object sender, EventArgs args)
{
CssTreeNode cssTreeNode = (CssTreeNode)sender;
string css = cssTreeNode.CalcCss();
string escapedCss = StringUtils.CleanForJSON(css);
string href = cssTreeNode.Href;
cssData_[href] = escapedCss;
if (waitHandles_.TryGetValue(cssTreeNode, out AutoResetEvent waitHandle))
{
waitHandle.Set();
lock (lockObject_)
{
waitHandles_.Remove(cssTreeNode);
}
}
}
private void FetchCssFiles_(List <string> missingCssList, string[] testIds)
{
logger_.Log(TraceLevel.Info, testIds, Stage.Check, StageType.DomScript, new { missingCssList });
List <CssTreeNode> cssTreeNodes = new List <CssTreeNode>();
foreach (string missingCssUrl in missingCssList)
{
if (missingCssUrl.StartsWith("blob:") || missingCssUrl.StartsWith("data:"))
{
logger_.Log(TraceLevel.Warn, testIds, Stage.Check, StageType.DomScript,
new { message = "trying to download something impossible", missingCssUrl });
cssData_.Add(missingCssUrl, string.Empty);
continue;
}
CssTreeNode cssTreeNode = new CssTreeNode(missingCssUrl, logger_, OnCssDownloadComplete_);
cssTreeNodes.Add(cssTreeNode);
AutoResetEvent waitHandle = new AutoResetEvent(false);
waitHandles_[cssTreeNode] = waitHandle;
cssTreeNode.Run(testIds);
}
}
private void OnCssDownloadComplete_(object sender, EventArgs args)
{
logger_.Verbose("enter");
CssTreeNode cssTreeNode = (CssTreeNode)sender;
string css = cssTreeNode.CalcCss();
string escapedCss = StringUtils.CleanForJSON(css);
string href = cssTreeNode.Href;
cssData_[href] = escapedCss;
if (waitHandles_.TryGetValue(cssTreeNode, out AutoResetEvent waitHandle))
{
logger_.Verbose("calling 'set' on waithandle {0}", waitHandle.GetHashCode());
waitHandle.Set();
lock (lockObject_)
{
waitHandles_.Remove(cssTreeNode);
}
}
logger_.Verbose("exit");
}
private void DownloadNodeCss_(CssTreeNode root, CssTreeNode targetCssTreeNode, string url, string[] testIds)
{
root.IncrementActiveDownloads();
DownloadCssAsync_(url, root.logger_,
(object sender, DownloadStringCompletedEventArgs args) =>
{
try
{
WebClientUserData data = (WebClientUserData)args.UserState;
if (args.Error == null)
{
string css = args.Result;
WebClient webClient = (WebClient)sender;
logger_.Verbose("download completed for {0}", data.href);
logger_.Verbose("download took {0} ms", data.stopwatch.Elapsed.TotalMilliseconds);
webClient.Dispose();
ParseCss_(targetCssTreeNode, css);
targetCssTreeNode.DownloadNodeCss_(root, testIds);
}
else
{
logger_.Log(TraceLevel.Error, testIds, Stage.Check, StageType.DownloadResource,
new { args.Error, data.href });
if (retriesCount_ > 0)
{
retriesCount_--;
logger_.Log(TraceLevel.Info, testIds, Stage.Check, StageType.Retry);
Thread.Sleep(100);
DownloadNodeCss_(root, this, Href, testIds);
}
}
root.DecrementActiveDownloads();
}
catch (Exception e)
{
CommonUtils.LogExceptionStackTrace(logger_, Stage.Check, e, testIds);
}
});
}
private void DownloadNodeCss_(CssTreeNode root, CssTreeNode targetCssTreeNode, string url)
{
root.IncrementActiveDownloads();
DownloadCssAsync_(url, root.logger_,
(object sender, DownloadStringCompletedEventArgs args) =>
{
try
{
WebClientUserData data = (WebClientUserData)args.UserState;
if (args.Error == null)
{
string css = args.Result;
WebClient webClient = (WebClient)sender;
logger_.Verbose("download completed for {0}", data.href);
logger_.Verbose("download took {0} ms", data.stopwatch.Elapsed.TotalMilliseconds);
webClient.Dispose();
ParseCss_(targetCssTreeNode, css);
targetCssTreeNode.DownloadNodeCss_(root);
}
else
{
logger_.Log("error downloading css {1}: {0}", args.Error, data.href);
if (retriesCount_ > 0)
{
retriesCount_--;
logger_.Log("Retrying...");
Thread.Sleep(100);
DownloadNodeCss_(root, this, Href);
}
}
root.DecrementActiveDownloads();
}
catch (Exception e)
{
logger_.Log("Error: " + e);
}
});
}
private void FetchCssFiles_(List <string> missingCssList)
{
logger_.Verbose("enter");
List <CssTreeNode> cssTreeNodes = new List <CssTreeNode>();
foreach (string missingCssUrl in missingCssList)
{
if (missingCssUrl.StartsWith("blob:") || missingCssUrl.StartsWith("data:"))
{
logger_.Log("trying to download something impossible: {0}", missingCssUrl);
cssData_.Add(missingCssUrl, string.Empty);
continue;
}
logger_.Verbose("Downloading {0}", missingCssUrl);
CssTreeNode cssTreeNode = new CssTreeNode(missingCssUrl, logger_, OnCssDownloadComplete_);
cssTreeNodes.Add(cssTreeNode);
AutoResetEvent waitHandle = new AutoResetEvent(false);
logger_.Verbose("creating waithandle {0}", waitHandle.GetHashCode());
waitHandles_[cssTreeNode] = waitHandle;
cssTreeNode.Run();
}
logger_.Verbose("exit");
}
