public void IdentifyJavaScript()
{
try
{
HtmlNodeCollection scriptNodes = KHtml.GetScriptsNodeCollection();
if (scriptNodes != null)
{
foreach (var node in scriptNodes)
{
try
{
#region Get attribute value
string attributeValue = String.Empty;
string attributeName = String.Empty;
switch (node.Name)
{
case "script":
attributeValue = node.GetAttributeValue("src", String.Empty);
attributeName = "src";
break;
default:
continue;
}
#endregion
#region Create absolute Uri (Also consider the Base Uri)
Uri absoluteUri = null;
// For handling basetag
if (KHtml.BaseTag.Exists)
{
Uri.TryCreate(KHtml.BaseTag.Href, attributeValue, out absoluteUri);
}
else
{
Uri.TryCreate(RootUrl, attributeValue, out absoluteUri);
}
#endregion
#region Process the Uri
if (absoluteUri != null)
{
absoluteUri = Utils.GenerateUriToProcess(absoluteUri, Resources.IgnoreFileNameChangeRegex);
string placeHolder = KHtmlParser.CheckUrlPresentInAssetOrNot(absoluteUri, Resources);
if (placeHolder != null && placeHolder.Equals("IGNORE", StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
if (placeHolder == null)
{
placeHolder = String.Format("[Kitsune_{0}]", absoluteUri.AbsoluteUri);
AssetDetails javaScriptFileLink = new AssetDetails
{
LinkUrl = absoluteUri.AbsoluteUri,
PlaceHolder = placeHolder
};
Resources.UniqueScriptsDictionary.TryAdd(absoluteUri.AbsoluteUri, javaScriptFileLink);
}
node.SetAttributeValue(attributeName, placeHolder);
}
else
{
//TO LOG
//ErrorLogMethod(LOGTYPE.ERROR, $"Attribute Value was empty for {node.Name}, for Url : {absoluteUri.AbsoluteUri}", null);
}
#endregion
#region Add to External Domain
if (!absoluteUri.Host.Equals(RootUrl.Host, StringComparison.OrdinalIgnoreCase))
{
Resources.ExternalDomains.Add(absoluteUri.Host.ToUpper());
}
#endregion
}
catch (Exception ex)
{
ErrorLogMethod(LOGTYPE.ERROR, $"Error while processing the Node(IdentifyingJavaScript Method) for Url : {RootUrl.AbsoluteUri}", ex);
}
}
}
else
{
ErrorLogMethod(LOGTYPE.INFORMATION, $"No Script Tag found for url : {RootUrl.AbsoluteUri}", null);
}
}
catch (Exception ex)
{
ErrorLogMethod(LOGTYPE.ERROR, "Error While finding the script tag.", ex);
}
}
public string ProcessAssetAndCreatePlaceHolder(HtmlNode node, string url)
{
try
{
string urlToProcess = url;
String placeHolder = null;
if (!String.IsNullOrEmpty(urlToProcess))
{
urlToProcess = WebUtility.HtmlDecode(urlToProcess);
var tagName = node.Name.ToLower();
Uri uri;
// For handling basetag
if (KHtml.BaseTag.Exists)
{
Uri.TryCreate(KHtml.BaseTag.Href, urlToProcess, out uri);
}
else
{
Uri.TryCreate(RootUrl, urlToProcess, out uri);
}
if (uri != null)
{
#region Process Uri
if (!tagName.Equals("script") && !tagName.Equals("iframe"))
{
uri = Utils.GenerateUriToProcess(uri, Resources.IgnoreFileNameChangeRegex);
placeHolder = KHtmlParser.CheckUrlPresentInAssetOrNot(uri, Resources);
if (placeHolder != null && placeHolder.Equals("IGNORE", StringComparison.InvariantCultureIgnoreCase))
{
return(null);
}
if (placeHolder == null)
{
placeHolder = String.Format("[Kitsune_{0}]", uri.AbsoluteUri);
AssetDetails assetLink = new AssetDetails();
assetLink.LinkUrl = uri.AbsoluteUri;
assetLink.PlaceHolder = placeHolder;
//TODO : what if try add fails
Resources.UniqueAssetsDictionary.TryAdd(uri.AbsoluteUri, assetLink);
}
}
#endregion
#region Adding to the externalDomain list
if (!uri.Host.Equals(RootUrl.Host))
{
Resources.ExternalDomains.Add(uri.Host.ToUpper());
}
#endregion
}
}
else
{
ErrorLogMethod(LOGTYPE.INFORMATION, "Url was null or Empty", null);
}
return(placeHolder);
}
catch (Exception ex)
{
ErrorLogMethod(LOGTYPE.ERROR, String.Format("Error while processing the Url: {0}", url), ex);
return(null);
}
}
public void IdentifyAndUpdateWebpagesList()
{
try
{
HtmlNodeCollection anchorNodes = KHtml.GetAnchorsNodeCollection();
if (anchorNodes != null)
{
foreach (var node in anchorNodes)
{
try
{
#region Get the attribute value
string attributeValue = String.Empty;
string attributeName = String.Empty;
switch (node.Name)
{
case "a":
attributeValue = node.GetAttributeValue("href", string.Empty);
attributeName = "href";
break;
case "form":
string formMethod = node.GetAttributeValue("method", string.Empty);
string formAction = node.GetAttributeValue("action", string.Empty);
if (!string.IsNullOrEmpty(formAction) && !string.IsNullOrEmpty(formMethod) && formMethod.Equals("get", StringComparison.InvariantCultureIgnoreCase))
{
attributeName = "action";
attributeValue = formAction;
}
else
{
continue;
}
break;
default:
continue;
}
#endregion
// AttributeValue = WebUtility.HtmlDecode(attributeValue);
// TODO: check why to decode the value
#region Process the attribute value
Uri absoluteUri = null;
if (!string.IsNullOrEmpty(attributeValue))
{
// Ignore #
if (!attributeValue.StartsWith("#"))
{
if (Uri.TryCreate(RootUrl, attributeValue, out absoluteUri))
{
if (AllowedScheme.Contains(absoluteUri.Scheme.ToLower()))
{
if (absoluteUri.Host.Equals(RootUrl.Host, StringComparison.OrdinalIgnoreCase))
{
#region Process the new Url found
string fragment = absoluteUri.Fragment;
string absoluteUrl = String.IsNullOrEmpty(fragment) ?
absoluteUri.AbsoluteUri : absoluteUri.AbsoluteUri.Replace(absoluteUri.Fragment, String.Empty);
absoluteUri = Utils.GenerateUriToProcess(absoluteUri, Resources.IgnoreFileNameChangeRegex);
string placeHolder = KHtmlParser.CheckUrlPresentInAssetOrNot(absoluteUri, Resources);
if (placeHolder != null && placeHolder.Equals("IGNORE", StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
if (placeHolder == null)
{
//create a new one
placeHolder = String.Format("[kitsune_{0}]", absoluteUri.AbsoluteUri);
AssetDetails linkMap = new AssetDetails
{
PlaceHolder = placeHolder,
LinkUrl = absoluteUri.AbsoluteUri
};
Resources.UniqueWebpagesDictionary.TryAdd(absoluteUri.AbsoluteUri, linkMap); // HACK: What if it is unable to add
UniqueWebPageQueue.Enqueue(absoluteUri.AbsoluteUri);
}
node.SetAttributeValue(attributeName, placeHolder + fragment);
#endregion
}
else
{
//throw new Exception(String.Format("Different Domain Url found. Uri : {0}"
// , absoluteUri.AbsoluteUri));
}
}
else
{
//throw new Exception((String.Format("Scheme of the Uri : {0} was {1}"
// , absoluteUri.AbsoluteUri, absoluteUri.Scheme)));
}
}
else
{
throw new Exception(String.Format("Unable to create absoluteUri for RootUrl : {0} and relativeUri : {1}"
, RootUrl, attributeValue));
}
}
}
else
{
//TO LOG
//ErrorLogMethod(LOGTYPE.ERROR, $"Attribute Value was empty for {node.Name}, for Url : {absoluteUri.AbsoluteUri}", null);
}
#endregion
}
catch (Exception ex)
{
ErrorLogMethod(LOGTYPE.ERROR, String.Format("Error while processing the node."), ex);
}
}
}
else
{
ErrorLogMethod(LOGTYPE.INFORMATION, $"No Links found in {RootUrl.AbsoluteUri}", null);
}
}
catch (Exception ex)
{
// TODO: LOG inner exxception
ErrorLogMethod(LOGTYPE.ERROR, $"Error Message : Error while finding links in {RootUrl.AbsoluteUri}", null);
}
}