import org.htmlparser.Attribute; //导入依赖的package包/类
public HTMLInputHandler(Attribute attr, Tag tag, int lineNumber, File file, Set<CFGFunction> functions) {

		this.file = file;
		this.tag = tag;
		this.attribute = attr;
		this.functions = functions;
		this.lineNumber = lineNumber + 1;
		
	}
 

import org.htmlparser.Attribute; //导入依赖的package包/类
/**
 * Processes the EMBED node that should contain the Flash animation:
 * @param embedTag the Root object tag to tackle
 * @param flashObjToFill the flash obect to fill in with data
 * @return the updated flash object
 */
@SuppressWarnings("unchecked")
private FlashEmbeddedObject parseFlashEmbedTag( NodeList embeds, final FlashEmbeddedObject flashObjToFill ) {
	if( embeds != null ) {
		logger.debug( "The number of embed-tag nodes is " + embeds.size() );
		for( int i = 0; i < embeds.size() ; i++ ) {
			Node embedNode = embeds.elementAt( i );
			if( embedNode instanceof Tag ) {
				Tag embedTag = (Tag) embedNode;
				//If it is not an end node then we process its attributes, if it is an empty 
				//XML tag then we do the same I believe an empty XML tag is smth like: <TAG />
				if( !embedTag.isEndTag() || embedTag.isEmptyXmlTag() ) {
					//Process the attributes
					logger.debug("Processing embed node's '" + embedTag + "' attributes");
					Vector<Attribute> atts = (Vector<Attribute>) embedTag.getAttributesEx();
					if( atts != null ) {
						for( Attribute att : atts ) {
							String nameValue = att.getName();
							String valueValue = att.getValue();
							if( ! flashObjToFill.setNameValue( nameValue, valueValue ) ) {
								logger.warn("An unknown EMBED attribute, name='" + nameValue + "' value='" + valueValue + "'" );
							} else {
								logger.debug("Set the EMBED attribute, name='" + nameValue + "' value='" + valueValue + "'");
							}
						}
					}
				} else {
					logger.warn( "Encountered an EMBED node: " + embedTag + " that is an end tag!" );
				}
			} else {
				logger.warn( "Encountered a EMBED node: " + embedNode + " that is not an EMBED tag!" );
			}
		}
	} else {
		logger.debug( "The list of embed-tag nodes is null" );
	}
	return flashObjToFill;
}
 

import org.htmlparser.Attribute; //导入依赖的package包/类
/**
 * Given a tag, check its attributes, removing those unwanted or not secure
 *
 * @param tag The tag to analyze
 * @param checkIfAttributeIsWelcome true if the attribute name should be matched against the list of welcome attributes, set in the main
 *            configuration file.
 */
@SuppressWarnings("unchecked")
private void checkAndValidateAttributes(Tag tag, boolean checkIfAttributeIsWelcome) {
	Vector<Attribute> newAttributes = new Vector<Attribute>();

	for (Iterator<Attribute> iter = tag.getAttributesEx().iterator(); iter.hasNext();) {
		Attribute a = iter.next();
		String name = a.getName();

		if (name == null) {
			newAttributes.add(a);
		}
		else {
			name = name.toUpperCase();

			if (a.getValue() == null) {
				newAttributes.add(a);
				continue;
			}

			String value = a.getValue().toLowerCase();

			if (checkIfAttributeIsWelcome && !this.isAttributeWelcome(name)) {
				continue;
			}

			if (!this.isAttributeSafe(name, value)) {
				continue;
			}

			if (a.getValue().indexOf("&#") > -1) {
				a.setValue(StringUtils.replace(a.getValue(), "&#", "&amp;#"));
			}

			newAttributes.add(a);
		}
	}

	tag.setAttributesEx(newAttributes);
}
 

import org.htmlparser.Attribute; //导入依赖的package包/类
/**
 * Given a tag, check its attributes, removing those unwanted or not secure.
 * 
 * @param tag
 *            The tag to analyze
 * @param checkIfAttributeIsWelcome
 *            true if the attribute name should be matched against the list
 *            of welcome attributes, set in the main configuration file.
 */
private void checkAndValidateAttributes(Tag tag, boolean checkIfAttributeIsWelcome) {
	Vector newAttributes = new Vector();

	for (Iterator iter = tag.getAttributesEx().iterator(); iter.hasNext();) {
		Attribute a = (Attribute) iter.next();

		String name = a.getName();

		if (name == null) {
			newAttributes.add(a);
		} else {
			name = name.toUpperCase();

			if (a.getValue() == null) {
				newAttributes.add(a);
				continue;
			}

			String value = a.getValue().toLowerCase();

			if (checkIfAttributeIsWelcome && !this.isAttributeWelcome(name)) {
				continue;
			}

			if (!this.isAttributeSafe(name, value)) {
				continue;
			}

			if (a.getValue().indexOf("&#") > -1) {
				a.setValue(a.getValue().replaceAll("&#", "&#"));
			}

			newAttributes.add(a);
		}
	}

	tag.setAttributesEx(newAttributes);
}
 

import org.htmlparser.Attribute; //导入依赖的package包/类
/**
 * Search and rewrites urls into common javascript events
 *
 * @param tag the tag to serach for events..
 * @param aResource the current Resource
 */
private void findAndRewriteJsEvents(Tag tag, ProxymaResource aResource) {
    for (int i = 0; i < EVENTS.length; i++) {
        String tagValue = tag.getAttribute(EVENTS[i]);
        if (tagValue != null) {
            tag.removeAttribute(EVENTS[i]);
            Attribute attribute = new Attribute();
            attribute.setName(EVENTS[i]);
            attribute.setAssignment("=");
            attribute.setRawValue("'" + findAndRewriteJSLinks(tagValue, aResource) + "'");
            tag.setAttributeEx(attribute);
        }
    }
}
 

import org.htmlparser.Attribute; //导入依赖的package包/类
public void handleTagOpen(TagNode tag) {
	String name = tag.getTagName();
	if(name.equals("TITLE")) {
		inTitle = !tag.isEmptyXmlTag();
		return;
	}

	// first the global attributes:
	Vector<Attribute> attributes = tag.getAttributesEx();
	for (Attribute a : attributes) {
		String attrName = a.getName();
		String attrValue = a.getValue();
		if (attrName == null || attrValue == null) {
			continue;
		}
		attrName = attrName.toLowerCase(Locale.ROOT);
		if (globalHrefAttributes.contains(attrName)) {
			data.addHref(PATH,makePath(name,attrName),"url",attrValue);
		}
	}
	// TODO: style attribute, BASE(href) tag, Resolve URLs
	
	TagExtractor extractor = extractors.get(name);
	if(extractor != null) {
		extractor.extract(data, tag, this);
	}
}