package railo.commons.net.http;
import java.io.IOException;
import java.io.InputStream;
import railo.commons.io.IOUtil;
import railo.commons.io.res.ContentType;
import railo.commons.io.res.ContentTypeImpl;
import railo.commons.lang.StringUtil;
import railo.commons.net.HTTPUtil;
import railo.runtime.PageContext;
import railo.runtime.engine.ThreadLocalPageContext;
import railo.runtime.op.Caster;
public abstract class HTTPResponseSupport implements HTTPResponse {
@Override
public final long getContentLength() throws IOException {
Header ct = getLastHeaderIgnoreCase("Content-Length");
if(ct!=null) return Caster.toLongValue(ct.getValue(),-1);
InputStream is=null;
long length=0;
try{
is=getContentAsStream();
if ( is == null )
return 0;
byte[] buffer = new byte[1024];
int len;
while((len = is.read(buffer)) !=-1){
length+=len;
}
return length;
}
finally {
IOUtil.closeEL(is);
}
}
@Override
public final ContentType getContentType() {
Header header = getLastHeaderIgnoreCase("Content-Type");
if(header==null) return null;
String[] mimeCharset = HTTPUtil.splitMimeTypeAndCharset(header.getValue(), null);
if(mimeCharset==null) return null;
String[] typeSub = HTTPUtil.splitTypeAndSubType(mimeCharset[0]);
return new ContentTypeImpl(typeSub[0],typeSub[1],mimeCharset[1]);
}
@Override
public final String getCharset() {
ContentType ct = getContentType();
String charset=null;
if(ct!=null)charset=ct.getCharset();
if(!StringUtil.isEmpty(charset)) return charset;
PageContext pc = ThreadLocalPageContext.get();
if(pc!=null) return pc.getConfig().getWebCharset();
return "ISO-8859-1";
}
}