Пример #1
0
 private static string percentDecode(string str, string encoding)
 {
     int len=str.Length;
     bool percent=false;
     for(int i=0;i<len;i++){
       char c=str[i];
       if(c=='%') {
     percent=true;
       } else if(c>=0x80) // Non-ASCII characters not allowed
     return null;
     }
     if(!percent)return str;
     ITextDecoder decoder=TextEncoding.getDecoder(encoding);
     ByteList mos=new ByteList();
     for(int i=0;i<len;i++){
       int c=str[i];
       if(c=='%'){
     if(i+2<len){
       int a=toHexNumber(str[i+1]);
       int b=toHexNumber(str[i+2]);
       if(a>=0 && b>=0){
     mos.append((byte) (a*16+b));
     i+=2;
     continue;
       }
     }
       }
       mos.append((byte) (c&0xFF));
     }
     return TextEncoding.decodeString(mos.toInputStream(),
     decoder, TextEncoding.ENCODING_ERROR_REPLACE);
 }
Пример #2
0
 private static byte[] getDataURLBytesInternal(string dataPath)
 {
     // assumes "data" consists of just the path extracted from a URL/URI
     int index=HeaderParser.skipDataUrlContentType(dataPath, 0,dataPath.Length,null);
     bool base64=false;
     if(com.upokecenter.util.StringUtility.startsWith(dataPath,";base64,",index)){
       index+=7;
       base64=true;
     }
     if(index<dataPath.Length && dataPath[index]==','){
       index++;
       ByteList mos=new ByteList();
       int len=dataPath.Length;
       for(int j=index;j<len;j++){
     int c=dataPath[j];
     // matches productions "unreserved" and
     // "reserved" of RFC2396, including
     // '?' (even though it delimits
     // a query _string, which is allowed in all
     // URIs as of RFC3986)
     if(!((c&0x7F)==c && "-_.!~*'();/:@&=+$,?".IndexOf((char)c)>=0) &&
     !(c>='A' && c<='Z') &&
     !(c>='a' && c<='z') &&
     !(c>='0' && c<='9'))
       return null;
     // matches percent-encoded characters
     // (production "escaped" of RFC2396)
     if(c=='%'){
       if(index+2<len){
     int a=HeaderParser.toHexNumber(dataPath[index+1]);
     int b=HeaderParser.toHexNumber(dataPath[index+2]);
     if(a>=0 && b>=0){
       mos.append((byte) (a*16+b));
       index+=2;
       continue;
     }
       }
     }
     mos.append((byte) (c&0xFF));
       }
       byte[] retval=mos.toByteArray();
       if(base64){
     try {
       return Base64.decode(retval);
     } catch(IOException){
       return null;
     }
       }
       return retval;
     } else
       return null;
 }