private void CollectCssDeclarations(INode rootNode, ResourceResolver resourceResolver)
{
this.css = new CssStyleSheet();
LinkedList <INode> q = new LinkedList <INode>();
if (rootNode != null)
{
q.Add(rootNode);
}
while (!q.IsEmpty())
{
INode currentNode = q.JRemoveFirst();
if (currentNode is IElementNode)
{
IElementNode headChildElement = (IElementNode)currentNode;
if (SvgConstants.Tags.STYLE.Equals(headChildElement.Name()))
{
//XML parser will parse style tag contents as text nodes
if (!currentNode.ChildNodes().IsEmpty() && (currentNode.ChildNodes()[0] is IDataNode || currentNode.ChildNodes
()[0] is ITextNode))
{
String styleData;
if (currentNode.ChildNodes()[0] is IDataNode)
{
styleData = ((IDataNode)currentNode.ChildNodes()[0]).GetWholeData();
}
else
{
styleData = ((ITextNode)currentNode.ChildNodes()[0]).WholeText();
}
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(styleData);
//TODO (DEVSIX-2263): media query wrap
//styleSheet = wrapStyleSheetInMediaQueryIfNecessary(headChildElement, styleSheet);
this.css.AppendCssStyleSheet(styleSheet);
}
}
else
{
if (SvgCssUtils.IsStyleSheetLink(headChildElement))
{
String styleSheetUri = headChildElement.GetAttribute(SvgConstants.Attributes.HREF);
try {
Stream stream = resourceResolver.RetrieveStyleSheet(styleSheetUri);
byte[] bytes = StreamUtil.InputStreamToArray(stream);
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(new MemoryStream(bytes), resourceResolver.ResolveAgainstBaseUri
(styleSheetUri).ToExternalForm());
this.css.AppendCssStyleSheet(styleSheet);
}
catch (System.IO.IOException exc) {
ILog logger = LogManager.GetLogger(typeof(iText.Svg.Css.Impl.SvgStyleResolver));
logger.Error(iText.StyledXmlParser.LogMessageConstant.UNABLE_TO_PROCESS_EXTERNAL_CSS_FILE, exc);
}
}
}
}
foreach (INode child in currentNode.ChildNodes())
{
if (child is IElementNode)
{
q.Add(child);
}
}
}
}
/* (non-Javadoc)
* @see com.itextpdf.html2pdf.css.resolve.ICssResolver#resolveStyles(com.itextpdf.html2pdf.html.node.INode, com.itextpdf.html2pdf.css.resolve.CssContext)
*/
private IDictionary <String, String> ResolveStyles(INode element, CssContext context)
{
IList <CssRuleSet> ruleSets = new List <CssRuleSet>();
ruleSets.Add(new CssRuleSet(null, UserAgentCss.GetStyles(element)));
if (element is IElementNode)
{
ruleSets.Add(new CssRuleSet(null, HtmlStylesToCssConverter.Convert((IElementNode)element)));
}
ruleSets.AddAll(cssStyleSheet.GetCssRuleSets(element, deviceDescription));
if (element is IElementNode)
{
String styleAttribute = ((IElementNode)element).GetAttribute(AttributeConstants.STYLE);
if (styleAttribute != null)
{
ruleSets.Add(new CssRuleSet(null, CssRuleSetParser.ParsePropertyDeclarations(styleAttribute)));
}
}
IDictionary <String, String> elementStyles = CssStyleSheet.ExtractStylesFromRuleSets(ruleSets);
if (CssConstants.CURRENTCOLOR.Equals(elementStyles.Get(CssConstants.COLOR)))
{
// css-color-3/#currentcolor:
// If the ‘currentColor’ keyword is set on the ‘color’ property itself, it is treated as ‘color: inherit’.
elementStyles.Put(CssConstants.COLOR, CssConstants.INHERIT);
}
String parentFontSizeStr = null;
if (element.ParentNode() is IStylesContainer)
{
IStylesContainer parentNode = (IStylesContainer)element.ParentNode();
IDictionary <String, String> parentStyles = parentNode.GetStyles();
if (parentStyles == null && !(element.ParentNode() is IDocumentNode))
{
ILog logger = LogManager.GetLogger(typeof(iText.Html2pdf.Css.Resolve.DefaultCssResolver));
logger.Error(iText.Html2pdf.LogMessageConstant.ERROR_RESOLVING_PARENT_STYLES);
}
if (parentStyles != null)
{
foreach (KeyValuePair <String, String> entry in parentStyles)
{
MergeParentCssDeclaration(elementStyles, entry.Key, entry.Value, parentStyles);
}
parentFontSizeStr = parentStyles.Get(CssConstants.FONT_SIZE);
}
}
String elementFontSize = elementStyles.Get(CssConstants.FONT_SIZE);
if (CssUtils.IsRelativeValue(elementFontSize) || CssConstants.LARGER.Equals(elementFontSize) || CssConstants
.SMALLER.Equals(elementFontSize))
{
float baseFontSize;
if (CssUtils.IsRemValue(elementFontSize))
{
baseFontSize = context.GetRootFontSize();
}
else
{
if (parentFontSizeStr == null)
{
baseFontSize = FontStyleApplierUtil.ParseAbsoluteFontSize(CssDefaults.GetDefaultValue(CssConstants.FONT_SIZE
));
}
else
{
baseFontSize = CssUtils.ParseAbsoluteLength(parentFontSizeStr);
}
}
float absoluteFontSize = FontStyleApplierUtil.ParseRelativeFontSize(elementFontSize, baseFontSize);
// Format to 4 decimal places to prevent differences between Java and C#
elementStyles.Put(CssConstants.FONT_SIZE, DecimalFormatUtil.FormatNumber(absoluteFontSize, "0.####") + CssConstants
.PT);
}
else
{
elementStyles.Put(CssConstants.FONT_SIZE, Convert.ToString(FontStyleApplierUtil.ParseAbsoluteFontSize(elementFontSize
), System.Globalization.CultureInfo.InvariantCulture) + CssConstants.PT);
}
// Update root font size
if (element is IElementNode && TagConstants.HTML.Equals(((IElementNode)element).Name()))
{
context.SetRootFontSize(elementStyles.Get(CssConstants.FONT_SIZE));
}
ICollection <String> keys = new HashSet <String>();
foreach (KeyValuePair <String, String> entry in elementStyles)
{
if (CssConstants.INITIAL.Equals(entry.Value) || CssConstants.INHERIT.Equals(entry.Value))
{
// if "inherit" is not resolved till now, parents don't have it
keys.Add(entry.Key);
}
}
foreach (String key in keys)
{
elementStyles.Put(key, CssDefaults.GetDefaultValue(key));
}
// This is needed for correct resolving of content property, so doing it right here
CounterProcessorUtil.ProcessCounters(elementStyles, context, element);
ResolveContentProperty(elementStyles, element, context);
return(elementStyles);
}
/// <summary>
/// Wraps a
/// <see cref="iText.StyledXmlParser.Css.Media.CssMediaRule"/>
/// into the style sheet if the head child element has a media attribute.
/// </summary>
/// <param name="headChildElement">the head child element</param>
/// <param name="styleSheet">the style sheet</param>
/// <returns>the css style sheet</returns>
private CssStyleSheet WrapStyleSheetInMediaQueryIfNecessary(IElementNode headChildElement, CssStyleSheet styleSheet
)
{
String mediaAttribute = headChildElement.GetAttribute(AttributeConstants.MEDIA);
if (mediaAttribute != null && mediaAttribute.Length > 0)
{
CssMediaRule mediaRule = new CssMediaRule(mediaAttribute);
mediaRule.AddStatementsToBody(styleSheet.GetStatements());
styleSheet = new CssStyleSheet();
styleSheet.AddStatement(mediaRule);
}
return(styleSheet);
}
/// <summary>
/// Creates a
/// <see cref="SvgStyleResolver"/>
/// with a given default CSS.
/// </summary>
/// <param name="defaultCssStream">the default CSS</param>
public SvgStyleResolver(Stream defaultCssStream)
{
this.css = CssStyleSheetParser.Parse(defaultCssStream);
}
internal CssRule(CssStyleSheet parentStyleSheet)
{
ParentStyleSheet = parentStyleSheet;
}
public virtual void PagesInCountersSpacesPresenceTest()
{
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(".x::before { content: counters( pages,'.') }");
NUnit.Framework.Assert.IsTrue(CssStyleSheetAnalyzer.CheckPagesCounterPresence(styleSheet));
}
public virtual void CounterWithoutPagesTest()
{
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(".x::before { content: counter(othercounter) }");
NUnit.Framework.Assert.IsFalse(CssStyleSheetAnalyzer.CheckPagesCounterPresence(styleSheet));
}
/// <summary>
/// Takes a text source and transforms it into a CSS sheet.
/// </summary>
internal ICssStyleSheet ParseStylesheet(TextSource source)
{
var sheet = new CssStyleSheet(this);
return(ParseStylesheet(sheet, source));
}
public virtual void SimpleNegativeTest()
{
CssStyleSheet styleSheet = CssStyleSheetParser.Parse("* { color: red; }");
NUnit.Framework.Assert.IsFalse(CssStyleSheetAnalyzer.CheckPagesCounterPresence(styleSheet));
}
/// <summary>Helper method to check if non-page(s) target-counter(s) is present anywhere in the CSS.</summary>
/// <remarks>
/// Helper method to check if non-page(s) target-counter(s) is present anywhere in the CSS.
/// If presence is detected, it may require additional treatment
/// </remarks>
/// <param name="styleSheet">CSS stylesheet to analyze</param>
/// <returns>
/// <c>true</c> in case any non-page(s) target-counter(s) are present in CSS declarations,
/// or <c>false</c> otherwise
/// </returns>
public static bool CheckNonPagesTargetCounterPresence(CssStyleSheet styleSheet)
{
return(CheckNonPagesTargetCounterPresence(styleSheet.GetStatements()));
}
public void AddCssStyleSheet(CssStyleSheet ss)
{
styleSheets.Add(ss);
}
internal virtual void SetStyleSheet(CssStyleSheet aSheet)
{
mSheet = aSheet;
}
public virtual void SrcPropertyTest()
{
String fontSrc = "web-fonts/droid-serif-invalid.";
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(new FileStream(sourceFolder + "srcs.css", FileMode.Open
, FileAccess.Read));
CssFontFaceRule fontFaceRule = (CssFontFaceRule)styleSheet.GetStatements()[0];
CssDeclaration src = fontFaceRule.GetProperties()[0];
NUnit.Framework.Assert.AreEqual("src", src.GetProperty(), "src expected");
String[] sources = iText.IO.Util.StringUtil.Split(src.GetExpression(), ",");
NUnit.Framework.Assert.AreEqual(27, sources.Length, "27 sources expected");
for (int i = 0; i < sources.Length; i++)
{
Match m = iText.IO.Util.StringUtil.Match(FontFace.FontFaceSrc.UrlPattern, sources[i]);
NUnit.Framework.Assert.IsTrue(m.Success, "Expression doesn't match pattern: " + sources[i]);
String format = iText.IO.Util.StringUtil.Group(m, FontFace.FontFaceSrc.FormatGroup);
String source2 = MessageFormatUtil.Format("{0}({1}){2}", iText.IO.Util.StringUtil.Group(m, FontFace.FontFaceSrc
.TypeGroup), iText.IO.Util.StringUtil.Group(m, FontFace.FontFaceSrc.UrlGroup), format != null ? MessageFormatUtil
.Format(" format({0})", format) : "");
String url = FontFace.FontFaceSrc.Unquote(iText.IO.Util.StringUtil.Group(m, FontFace.FontFaceSrc.UrlGroup)
);
NUnit.Framework.Assert.IsTrue(url.StartsWith(fontSrc), "Invalid url: " + url);
NUnit.Framework.Assert.IsTrue(format == null || FontFace.FontFaceSrc.ParseFormat(format) != FontFace.FontFormat
.None, "Invalid format: " + format);
NUnit.Framework.Assert.AreEqual(sources[i], source2, "Group check fails: ");
FontFace.FontFaceSrc fontFaceSrc = FontFace.FontFaceSrc.Create(sources[i]);
NUnit.Framework.Assert.IsTrue(fontFaceSrc.src.StartsWith(fontSrc), "Invalid url: " + fontSrc);
String type = "url";
if (fontFaceSrc.isLocal)
{
type = "local";
}
NUnit.Framework.Assert.IsTrue(sources[i].StartsWith(type), "Type '" + type + "' expected: " + sources[i]);
switch (fontFaceSrc.format)
{
case FontFace.FontFormat.OpenType: {
NUnit.Framework.Assert.IsTrue(sources[i].Contains("opentype"), "Format " + fontFaceSrc.format + " expected: "
+ sources[i]);
break;
}
case FontFace.FontFormat.TrueType: {
NUnit.Framework.Assert.IsTrue(sources[i].Contains("truetype"), "Format " + fontFaceSrc.format + " expected: "
+ sources[i]);
break;
}
case FontFace.FontFormat.SVG: {
NUnit.Framework.Assert.IsTrue(sources[i].Contains("svg"), "Format " + fontFaceSrc.format + " expected: " +
sources[i]);
break;
}
case FontFace.FontFormat.None: {
NUnit.Framework.Assert.IsFalse(sources[i].Contains("format("), "Format " + fontFaceSrc.format + " expected: "
+ sources[i]);
break;
}
}
}
}
/** -------------------------------------------------------------------- **/
private async Task _ProcessCssPage()
{
MacroscopeHttpTwoClient Client = this.DocCollection.GetJobMaster().GetHttpClient();
MacroscopeHttpTwoClientResponse Response = null;
string ResponseErrorCondition = null;
DebugMsg(string.Format("ProcessCssPage: {0}", ""));
try
{
Response = await Client.Get(
this.GetUri(),
this.ConfigureCssPageRequestHeadersCallback,
this.PostProcessRequestHttpHeadersCallback
);
}
catch (MacroscopeDocumentException ex)
{
this.DebugMsg(string.Format("_ProcessCssPage :: MacroscopeDocumentException: {0}", ex.Message));
ResponseErrorCondition = ex.Message;
this.SetStatusCode(HttpStatusCode.BadRequest);
this.AddRemark("_ProcessCssPage", ex.Message);
}
catch (Exception ex)
{
this.DebugMsg(string.Format("_ProcessCssPage :: Exception: {0}", ex.Message));
ResponseErrorCondition = ex.Message;
this.SetStatusCode(HttpStatusCode.BadRequest);
this.AddRemark("_ProcessCssPage", ex.Message);
}
/** Set Base URL ----------------------------------------------------- **/
if (Response != null)
{
Uri CssUri = this.GetUri();
string CssLocalPath = CssUri.LocalPath;
string CssPath = System.IO.Path.GetDirectoryName(CssLocalPath);
Uri NewCssUri = new Uri(new UriBuilder(scheme: CssUri.Scheme, host: CssUri.Host, port: CssUri.Port, pathValue: CssPath).ToString());
this.SetBaseHref(NewCssUri.ToString());
}
/** Process The Response Body ---------------------------------------- **/
if (Response != null)
{
string RawData = "";
this.ProcessResponseHttpHeaders(Response: Response);
/** Get Response Body ---------------------------------------------- **/
try
{
DebugMsg(string.Format("MIME TYPE: {0}", this.MimeType));
RawData = Response.GetContentAsString();
this.SetContentLength(Length: RawData.Length); // May need to find bytes length
this.SetWasDownloaded(true);
}
catch (Exception ex)
{
DebugMsg(string.Format("Exception: {0}", ex.Message));
this.SetStatusCode(HttpStatusCode.Ambiguous);
this.SetContentLength(Length: 0);
}
if (!string.IsNullOrEmpty(RawData))
{
try
{
CssLoader Parser = new CssLoader();
CssStyleSheet Stylesheet = Parser.ParseSheet(RawData, this.GetUri(), this.GetUri());
this.ProcessCssOutlinks(Stylesheet: Stylesheet);
}
catch (Exception ex)
{
this.DebugMsg(string.Format("ProcessHtmlAttributeCssLinks: {0}", ex.Message));
this.AddRemark("ProcessHtmlAttributeCssLinks", ex.Message);
}
}
else
{
DebugMsg(string.Format("ProcessCssPage: ERROR: {0}", this.GetUrl()));
}
/** Custom Filters ------------------------------------------------- **/
if (!string.IsNullOrEmpty(RawData))
{
if (
MacroscopePreferencesManager.GetCustomFiltersEnable() &&
MacroscopePreferencesManager.GetCustomFiltersApplyToCss())
{
MacroscopeCustomFilters CustomFilter = this.DocCollection.GetJobMaster().GetCustomFilter();
if ((CustomFilter != null) && (CustomFilter.IsEnabled()))
{
this.ProcessGenericCustomFiltered(
CustomFilter: CustomFilter,
GenericText: RawData
);
}
}
}
/** Data Extractors ------------------------------------------------ **/
if (!string.IsNullOrEmpty(RawData))
{
if (
MacroscopePreferencesManager.GetDataExtractorsEnable() &&
MacroscopePreferencesManager.GetDataExtractorsApplyToCss())
{
this.ProcessGenericDataExtractors(GenericText: RawData);
}
}
/** Title ---------------------------------------------------------- **/
{
MatchCollection reMatches = Regex.Matches(this.DocUrl, "/([^/]+)$");
string DocumentTitle = null;
foreach (Match match in reMatches)
{
if (match.Groups[1].Value.Length > 0)
{
DocumentTitle = match.Groups[1].Value.ToString();
break;
}
}
if (DocumentTitle != null)
{
this.SetTitle(DocumentTitle, MacroscopeConstants.TextProcessingMode.NO_PROCESSING);
DebugMsg(string.Format("TITLE: {0}", this.GetTitle()));
}
else
{
DebugMsg(string.Format("TITLE: {0}", "MISSING"));
}
}
}
if (ResponseErrorCondition != null)
{
this.ProcessErrorCondition(ResponseErrorCondition);
}
}
/**************************************************************************/
private void ProcessCssOutlinks(CssStyleSheet Stylesheet)
{
// https://github.com/Athari/CsCss
// https://developer.mozilla.org/en-US/docs/Web/CSS/url
List <string> BackgroundImageUrls = null;
if (this.GetIsExternal())
{
return;
}
try
{
BackgroundImageUrls = Stylesheet.AllStyleRules
.Where(StyleRule => StyleRule.Declaration.BackgroundImage != null)
.SelectMany(StyleRule => StyleRule.Declaration.AllData)
.SelectMany(Property => Property.Value.Unit == CssUnit.List ? Property.Value.List : new[] { Property.Value })
.Where(Value => Value.Unit == CssUnit.Url)
.Select(Value => Value.OriginalUri)
.ToList();
}
catch (Exception ex)
{
DebugMsg(string.Format("ProcessCssOutlinks: {0}", ex.Message));
}
if (BackgroundImageUrls != null)
{
foreach (string BackgroundImageUrl in BackgroundImageUrls)
{
string LinkUrlAbs = this.ProcessCssBackgroundImageUrl(BackgroundImageUrl);
DebugMsg(string.Format("ProcessCssOutlinks: (background-image): {0}", BackgroundImageUrl));
DebugMsg(string.Format("ProcessCssOutlinks: (background-image): {0}", LinkUrlAbs));
if (LinkUrlAbs != null)
{
MacroscopeHyperlinkOut HyperlinkOut = null;
MacroscopeLink Outlink = null;
HyperlinkOut = this.HyperlinksOut.Add(
LinkType: MacroscopeConstants.HyperlinkType.CSS,
UrlTarget: LinkUrlAbs
);
Outlink = this.AddDocumentOutlink(
AbsoluteUrl: LinkUrlAbs,
LinkType: MacroscopeConstants.InOutLinkType.IMAGE,
Follow: true
);
if (Outlink != null)
{
Outlink.SetRawTargetUrl(BackgroundImageUrl);
}
}
}
}
return;
}
/// <summary>
/// Creates a
/// <see cref="SvgStyleResolver"/>
/// with a given default CSS.
/// </summary>
/// <param name="defaultCssStream">the default CSS</param>
/// <param name="context">the processor context</param>
public SvgStyleResolver(Stream defaultCssStream, SvgProcessorContext context)
{
this.css = CssStyleSheetParser.Parse(defaultCssStream);
this.resourceResolver = context.GetResourceResolver();
}
){kind=link}