001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.commons.net.http; 020 021import java.io.IOException; 022import java.io.InputStream; 023 024import lucee.commons.io.IOUtil; 025import lucee.commons.io.res.ContentType; 026import lucee.commons.io.res.ContentTypeImpl; 027import lucee.commons.lang.StringUtil; 028import lucee.commons.net.HTTPUtil; 029import lucee.runtime.PageContext; 030import lucee.runtime.PageContextImpl; 031import lucee.runtime.engine.ThreadLocalPageContext; 032import lucee.runtime.op.Caster; 033 034public abstract class HTTPResponseSupport implements HTTPResponse { 035 036 037 038 @Override 039 public final long getContentLength() throws IOException { 040 Header ct = getLastHeaderIgnoreCase("Content-Length"); 041 if(ct!=null) return Caster.toLongValue(ct.getValue(),-1); 042 043 InputStream is=null; 044 long length=0; 045 try{ 046 is=getContentAsStream(); 047 048 if ( is == null ) 049 return 0; 050 051 byte[] buffer = new byte[1024]; 052 int len; 053 while((len = is.read(buffer)) !=-1){ 054 length+=len; 055 } 056 return length; 057 } 058 finally { 059 IOUtil.closeEL(is); 060 } 061 } 062 063 @Override 064 public final ContentType getContentType() { 065 Header header = getLastHeaderIgnoreCase("Content-Type"); 066 if(header==null) return null; 067 068 String[] mimeCharset = HTTPUtil.splitMimeTypeAndCharset(header.getValue(), null); 069 if(mimeCharset==null) return null; 070 071 String[] typeSub = HTTPUtil.splitTypeAndSubType(mimeCharset[0]); 072 return new ContentTypeImpl(typeSub[0],typeSub[1],mimeCharset[1]); 073 } 074 075 @Override 076 public final String getCharset() { 077 ContentType ct = getContentType(); 078 String charset=null; 079 if(ct!=null)charset=ct.getCharset(); 080 if(!StringUtil.isEmpty(charset)) return charset; 081 082 PageContext pc = ThreadLocalPageContext.get(); 083 if(pc!=null) return ((PageContextImpl)pc).getWebCharset().name(); 084 return "ISO-8859-1"; 085 } 086 087}