/*
*Author:tyfun
*DateTime:2002.12.19
*Package:com.westarsoft.function
*/
package com.westarsoft.function;
public class HtmlFilter {
/*USE:
*String escapeHTMLTags( String input , boolean htmlFlag )
*/
public static String escapeHTMLTags( String input , boolean htmlFlag ) {
if( input == null || input.length() == 0 || htmlFlag ) {
return input;
}
StringBuffer buf = new StringBuffer(input.length()+6);
char ch = ' ';
for( int i=0; i ch = input.charAt(i); if( ch == '<' ) { buf.append( "<" ); } else if( ch == '>' ) { buf.append( ">" ); } else { buf.append( ch ); } } return buf.toString(); } /*USE: *String replace( String line, String oldString, String newString ) */ public static String replace( String line, String oldString, String newString ) { int i=0; if ( ( line == null || oldString == null ) ) { return null; } if ( ( i=line.indexOf( oldString, i ) ) >= 0 ) { int oLength = oldString.length(); int nLength = newString.length(); StringBuffer buf = new StringBuffer(); buf.append(line.substring(0,i)).append(newString); i += oLength; int j = i; while( (i=line.indexOf(oldString,i)) > 0 ) { buf.append(line.substring(j,i)).append(newString); i += oLength; j = i; } buf.append(line.substring(j)); return buf.toString(); } return line; } /*USE: *String replaceIgnoreCase( String line, String oldString, String newString ) */ public static String replaceIgnoreCase( String line, String oldString, String newString ) { if (line == null) { return null; } String lcLine = line.toLowerCase(); String lcOldString = oldString.toLowerCase(); int i=0; if ( ( i=lcLine.indexOf( lcOldString, i ) ) >= 0 ) { char [] line2 = line.toCharArray(); char [] newString2 = newString.toCharArray(); int oLength = oldString.length(); StringBuffer buf = new StringBuffer(line2.length); buf.append(line2, 0, i).append(newString2); i += oLength; int j = i; while( ( i=lcLine.indexOf( lcOldString, i ) ) > 0 ) { buf.append(line2, j, i-j).append(newString2); i += oLength; j = i; } buf.append(line2, j, line2.length - j); return buf.toString(); } return line; } /*USE: *String convertUBB( String input ) */ public static String convertUBB ( String input ) { if( input == null || input.length() == 0 ) { return input; } else { input = replaceIgnoreCase( input , "<" ,"<" ) ; input = replaceIgnoreCase( input , "<%" ,"<%" ) ; input = replaceIgnoreCase( input , "%>" ,"%>" ) ; input = replaceIgnoreCase( input , ">" ,">" ) ; input = replaceIgnoreCase( input , "" ,"" ) ; input = replaceIgnoreCase( input , "" ,"" ) ; input = replaceIgnoreCase( input , "" ,"" ) ; input = replaceIgnoreCase( input , "" ,"" ) ; input = replaceIgnoreCase( input , "" ,"" ) ; input = replaceIgnoreCase( input , "" ,"" ) ; input = replaceIgnoreCase( input , "[red]" ,"" ) ; input = replaceIgnoreCase( input , "[/red]" ,"" ) ; input = replaceIgnoreCase( input , "" ,"" ) ;
input = replaceIgnoreCase( input , "" ,"" ) ;
input = replaceIgnoreCase( input , "" ,"
input = replaceIgnoreCase( input , "" ,"
input = replaceIgnoreCase ( input , "" , "
" ) ;
" ) ;input = replaceIgnoreCase ( input , "" , "
input = replace ( input , " " ," " ) ;
input = replace ( input , "\n" ,"
" ) ;
if ( input.indexOf("<") >= 0 ) {
int oldPre = input.indexOf( "<" , 0 ) ;
int oldEnd = input.indexOf( ">" , oldPre ) ;
int tempInt = 0 ;
StringBuffer setBlank = new StringBuffer () ;
while ( oldPre >= 0 && oldEnd > 0 ) {
setBlank = setBlank.append( input.substring( tempInt , oldPre) ) ;
setBlank = setBlank.append ( replace ( input.substring( oldPre ,oldEnd ) , " " , " " ) ) ;
tempInt = oldEnd ;
oldPre = input.indexOf( "<" , oldEnd ) ;
oldEnd = input.indexOf( ">" , oldPre ) ;
}
setBlank = setBlank.append ( input.substring( tempInt ) ) ;
input = setBlank.toString() ;
}
}
return input;
}
/*USE:
*String convertURL( String input , boolean urlFlag )
*/
public static String convertURL( String input , boolean urlFlag ) {
if( input == null || input.length() == 0 || urlFlag || input.indexOf("[url") != -1 ) {
return input;
}
else {
StringBuffer buf = new StringBuffer();
int i = 0, j = 0, oldend = 0;
int len = input.length();
char cur;
while ( ( i=input.indexOf( "http://", oldend) ) >= 0 ) {
j=i+7;
cur = input.charAt(j);
while (j < len) {
if (cur == ' ') break;
if (cur == '<') break;
if (cur == '\n') break;
if (cur == '\r' && j j++; if (j cur = input.charAt(j); } } buf.append(input.substring(oldend,i)); buf.append("] buf.append(input.substring(i,j)); buf.append("" target=_blank>"); buf.append(input.substring(i,j)); buf.append(""); oldend = j; } buf.append(input.substring(j,len)); return buf.toString(); } } // public static String convertSpecialTage ( String input , String tagNamePre , String tagNameEnd , String tagContentPre , String tagContentEnd , String tagAttach ) { if( input == null || input.length() == 0 || input.indexOf( tagNamePre ) < 0 ) { return input; } else { try { StringBuffer buf = new StringBuffer(); int i = 0, j = 0, oldend = 0; int len = input.length(); int tagPreLength = tagNamePre.length() ; int tagEndLength = tagNameEnd.length() ; boolean errorFlag = false ; char cur; while ( ( i=input.indexOf( tagNamePre , oldend) ) >= 0 ) { j = i + tagPreLength ; j = input.indexOf( tagNameEnd , j ) ; if ( j < 0 ) { buf.append ( input.substring( oldend , len ) ) ; errorFlag = true ; break; } else { buf.append( input.substring(oldend,i)); buf.append( tagContentPre ); buf.append( input.substring(i + tagPreLength ,j)); buf.append( tagContentEnd ); buf.append( input.substring(i + tagPreLength ,j)).append( tagAttach ) ; } oldend = j + tagEndLength ; } if ( !errorFlag ) { buf.append(input.substring(j + tagEndLength,len)); } return buf.toString(); } catch ( IndexOutOfBoundsException IOBe ) { return input; } catch ( Exception e ) { return input; } } } // public static String convertSpecialTage ( String input , String tagNamePre , String tagNameEnd , String tagContentPre , String tagContentEnd ) { if( input == null || input.length() == 0 || input.indexOf( tagNamePre ) < 0 ) { return input; } else { try { StringBuffer buf = new StringBuffer(); int i = 0, j = 0, oldend = 0; int len = input.length(); int tagPreLength = tagNamePre.length() ; int tagEndLength = tagNameEnd.length() ; boolean errorFlag = false ; char cur; while ( ( i=input.indexOf( tagNamePre , oldend) ) >= 0 ) { j = i + tagPreLength ; j = input.indexOf( tagNameEnd , j ) ; if ( j < 0 ) { buf.append ( input.substring( oldend , len ) ) ; errorFlag = true ; break; } else { buf.append( input.substring(oldend,i)); buf.append( tagContentPre ); buf.append( input.substring(i + tagPreLength ,j)); buf.append( tagContentEnd ); } oldend = j + tagEndLength ; } if ( !errorFlag ) { buf.append( input.substring(j + tagEndLength,len)); } return buf.toString(); } catch ( IndexOutOfBoundsException IOBe ) { return input; } catch ( Exception e ) { return input; } } } // public static String convertSpecialTage ( String input , String tagNamePre , String tagNameEnd , String tagContentPre , String tagContentEnd , String tagAttach , String interval ) { if( input == null || input.length() == 0 || input.indexOf( tagNamePre ) < 0 ) { return input; } else { try { StringBuffer buf = new StringBuffer(); int i = 0, j = 0, oldend = 0; int len = input.length(); int tagPreLength = tagNamePre.length() ; int tagEndLength = tagNameEnd.length() ; int intervalLength = interval.length() ; boolean errorFlag = false ; String tempString = null ; char cur; while ( ( i=input.indexOf( tagNamePre , oldend) ) >= 0 ) { j = i + tagPreLength ; j = input.indexOf( tagNameEnd , j ) ; if ( j < 0 ) { buf.append ( input.substring( oldend , len ) ) ; errorFlag = true ; break; } else { int intervalPostion = input.indexOf( interval , i + tagPreLength ) ; if ( intervalPostion + intervalLength >= j ) { buf.append ( input.substring( oldend , len ) ) ; errorFlag = true ; break; } buf.append( input.substring(oldend,i)); buf.append( tagContentPre ); tempString = input.substring(i + tagPreLength ,intervalPostion ).trim() ; if ( tempString.indexOf("\"") == 0 ) { tempString = tempString.substring ( 1 , tempString.indexOf( "\"" , 1 ) ) ; } buf.append( tempString ); buf.append( tagContentEnd ); buf.append( input.substring( intervalPostion + intervalLength ,j ) ).append( tagAttach ) ; } oldend = j + tagEndLength ; } if ( !errorFlag ) { buf.append(input.substring(j + tagEndLength,len)); } return buf.toString(); } catch ( IndexOutOfBoundsException IOBe ) { return input; } catch ( Exception e ) { return input; } } } /*USE: *String convertIMG( String input ) */ public static String convertIMG ( String input ) { if( input == null || input.length() == 0 ) { return input; } else { return convertSpecialTage ( input , " } } /*USE: *String convertSupperUBB( String input , int level ) */ public static String convertSupperUBB ( String input , int level ) { if( input == null || input.length() == 0 ) { return input; } else { level++ ; if ( level-- > 0 ) input = convertSpecialTage ( input , "" , "" , "" , "" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[url=" , "][/url]" , "" , "" , "]" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[color=" ,"][/color]" , "" , "" , "]" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[size=" ,"][/size]" , "" , "" , "]" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "" , "" , "" , "" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , " if ( level-- > 0 ) input = convertSpecialTage ( input , "[swf]" , "[/swf]" , "" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[url2]" , "[/url2]" , "" , "" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[url2=" , "][/url2]" , "" , "" , "]" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[a]" ,"[/a]" , "" ) ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[div=" ,"][/div]" , " if ( level-- > 0 ) input = convertSpecialTage ( input , "[jsurl=" ,"][/jsurl]" , "" ,"" ,"]") ; if ( level-- > 0 ) input = convertSpecialTage ( input , "[class=" ,"][/class]" , "" , "" , "]" ) ; input = convertUBB ( input ) ; return input ; } } /*USE: *String convertMAIL( String input ) */ public static String convertMAIL ( String input ) { if( input == null || input.length() == 0 ) { return input; } else { return convertSpecialTage ( input , "" , "" , "" , "" ) ; } } /*USE: *String convertSWF( String input ) */ public static String convertSWF ( String input ) { if( input == null || input.length() == 0 ) { return input; } else { return convertSpecialTage ( input , "[swf]" , "[/swf]" , "" ) ; } } }" , "
" ) ;
" , "
" ) ;