htmleditor.js

LyBBS基于Struts1.3/Ajax的架构

function ReHTML(text){
  text = text.replace(/&/g, "&") ;
  text = text.replace(/"/g, '"') ;
  text = text.replace(/&lt;/g, "<") ;
  text = text.replace(/&gt;/g, ">") ;
  text = text.replace(/&#146;/g, "'") ;
  return text ;
}

function toBr(text){
  text = text.replace(/\r/g, "") ;
  text = text.replace(/\n/g, "<br>") ;
  return text;
}

function toBlank(text){
  return text.replace(/\xA0/g, " ");
}

function addScript(text){
  return "<pre>"+text+"</pre>";
}

function delScript(text){
  text=text.replace("<pre>","");
  text=text.replace("</pre>","");
  return toBlank(text);
}

function lybbs_inserttable() {
  if (!lybbs_validateMode()) return;
  IframeID.focus();
  var arr = showModalDialog("bbs_commonForward.do?forward=inserttable", window, "dialogWidth:22em; dialogHeight:19em; status:0; help:0;scroll:no;");
  if (arr){
    IframeID.document.body.innerHTML+=arr;
  }
  IframeID.focus();
}

function lybbs_CopyData(){
  ischeck=true;
  if(lybbs_bTextMode==2){
    if (lybbs_bIsIE5){
      content=IframeID.document.body.innerText;
      IframeID.document.body.innerHTML=content;
    }else{
      var html = IframeID.document.body.ownerDocument.createRange();
      html.selectNodeContents(IframeID.document.body);
      IframeID.document.body.innerHTML = html.toString();
    }
    IframeID.focus();
  }
  try {
    openner.theform.content.value=delScript(OSWEBXHTML.GetXHTML(IframeID.document.body));
    //support html checked
    if(openner.theform.htmlSupport!=null) openner.theform.htmlSupport.checked=true;
    return true;
  }
  catch(ex) {
    alert(ex.message);
    return false;
  }
}

function lybbs_CheckData(){
  IframeID.document.charset="GBK";
  IframeID.document.body.innerHTML=addScript(toBr(theform.content.value));
  try {
    theform.content.value=delScript(OSWEBXHTML.GetXHTML(IframeID.document.body));
    return true;
  }
  catch(ex) {
    alert(ex.message);
    theform.content.value="";
    return false;
  }
}

function checkattributeName(attributeName){
  var Re = new RegExp(/&|\/|<|>|\*|#|:|;|=|\?|\)|\(|%|\[|\]|\$| /gi);
  if(Re.test(attributeName)){
    return false
  }else{
    var Re = new RegExp(/[0-9]/gi);
    if(Re.test(attributeName.substring(0,1))){
      return false
    }else{
      return true;
    }
  }
}

var checkword=0;
var OSWEBXHTML=new Object();
OSWEBXHTML.GetXHTML=function(node){
  if (window.ActiveXObject){
    var prefix = ["MSXML3","MSXML2","MSXML","Microsoft"];
    for (var i=0;i<prefix.length;i++) {
      try {
        this.XML=new ActiveXObject(prefix[i] + ".DOMDocument");
        if (XML){
          return XML;
        }
      } catch (e) {}
    }
  }else{
    this.XML=document.implementation.createDocument('', '', null);
    Node.prototype.__defineGetter__('xml', OSWEBXHTML._Node_Getxml);
  }
  this.MainNode=this.XML.appendChild(this.XML.createElement( 'XHTML' ));
  this._AppendChildNodes(this.MainNode, node);
  var sXHTML=this.MainNode.xml;
  sXHTML=sXHTML.replace(/<embed><\/embed>/g,"") ;
  return sXHTML.substr(7, sXHTML.length - 15);
}

OSWEBXHTML._Node_Getxml=function(){
  var oSerializer=new XMLSerializer();
  return oSerializer.serializeToString(this);
}

OSWEBXHTML._AppendChildNodes=function(xmlNode, htmlNode){
  var oChildren=htmlNode.childNodes;
  var i=0;
  while (i < oChildren.length){
    i +=this._AppendNode(xmlNode, oChildren[i]);
  }
}

OSWEBXHTML._AppendNode=function(xmlNode, htmlNode){
  var iAddedNodes=1;
  switch (htmlNode.nodeType){
    case 1 : var sNodeName=fixtag(htmlNode.nodeName.toLowerCase());
             if(sNodeName=='') break;
             else if(sNodeName=='plaintext'||sNodeName=='xmp') break;//filter plaintext and xmp to clear
             else if(sNodeName=='iframe') break;//filter iframe
             else if(sNodeName=='meta') break;//filter iframe
             else if(sNodeName=='form') break;//filter iframe
             if(checkword==1){
               if (sNodeName=='colgroup') break;
             }
             var oAttributes=htmlNode.attributes;
             var oNode=xmlNode.appendChild(this.XML.createElement( sNodeName ));
             for (var n=0 ; n < oAttributes.length ; n++){
               var oAttribute=oAttributes[n];
               if (oAttribute.specified) {
                 if(oAttribute.nodeName.toLowerCase()=='onerror') {
                    break;
                 }
                 else if (oAttribute.nodeName.toLowerCase()=='style') {
                   ;
                 }
                 else if (oAttribute.nodeName.toLowerCase()=='src') {
                   var nodeValue=escapeUrl(oAttribute.nodeValue+'');
                   if(checkInvalidUrl(nodeValue)) {
                     break;
                     //this._AppendAttribute(oNode,fixtag(oAttribute.nodeName.toLowerCase()+''),'');
                   }
                   else {
                     this._AppendAttribute(oNode, fixtag(oAttribute.nodeName.toLowerCase()+''), nodeValue);
                   }
                 }
                 else {
                   this._AppendAttribute(oNode, fixtag(oAttribute.nodeName.toLowerCase()+''), oAttribute.nodeValue+'');
                 }
               }
             }
             /**
             var cssText=htmlNode.style.cssText;
             if (cssText!='') {
               if (navigator.appVersion.indexOf("MSIE")!=-1){
                 cssText=cssText+';';
               }
               this._AppendAttribute(oNode, 'style', cssText);
             }
             **/
             if (htmlNode.childNodes.length == 0){
                switch (sNodeName){
                  case "img" :case "input" :case "br" : case "hr" :case "param":break;
                  default : oNode.appendChild(this.XML.createTextNode( '' ));
                            break;
                }
             }
             switch (sNodeName){
               case "abbr" : if (document.all){
                               var oNextNode=htmlNode.nextSibling;
                               while (true){
                                 iAddedNodes++;
                                 if (oNextNode && oNextNode.nodeName !='/ABBR'){
                                   this._AppendNode(oNode, oNextNode);
                                   oNextNode=oNextNode.nextSibling;
                                 }else{
                                   break;
                                 }
                               }
                               break;
                             }
               case "area" : if (document.all && ! oNode.attributes.getNamedItem( 'coords' )){
                               var sCoords=htmlNode.getAttribute('coords', 2);
                               if (sCoords && sCoords !='0,0,0')
                                 this._AppendAttribute(oNode, 'coords', sCoords);
                             }
               case "img" : if (! oNode.attributes.getNamedItem( 'alt' )) {
                              this._AppendAttribute(oNode, 'alt', 'img');
                            }
               default :this._AppendChildNodes(oNode, htmlNode);
                        break;
             }
    case 3 : if (htmlNode.nodeValue!=null) {
               xmlNode.appendChild(this.XML.createTextNode( htmlNode.nodeValue ));
             }
             break;
    default : xmlNode.appendChild(this.XML.createComment( "Element not supported - Type: " + htmlNode.nodeType + " Name: " + htmlNode.nodeName ));
              break;
  }
  return iAddedNodes;
}

OSWEBXHTML._AppendAttribute=function(xmlNode, attributeName, attributeValue){
  if(checkattributeName(attributeName) && attributeName.indexOf('_moz') ==-1 && attributeName.substring(0,2)!='on' && attributeValue.indexOf('_moz') ==-1 && attributeName!=''){
    if(checkword==1){
      if (attributeName=='classname') return;
      if (attributeName=='style') return;
      if (attributeName=='class') return;
    }
    if (attributeName=='xstr') return;
    if (attributeName=='xnum') return;
    if (attributeName=='u1num') return;
    var oXmlAtt=this.XML.createAttribute(attributeName);
    if ((typeof( attributeValue )=='boolean' && attributeValue == true ) || attributeValue == 'true'){
      oXmlAtt.nodeValue=attributeName;
    }else{
      oXmlAtt.nodeValue=attributeValue;
    }
    xmlNode.attributes.setNamedItem(oXmlAtt);
  }
}