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yacy_search_server/source/de/anomic/http/httpSSI.java

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// httpSSI.java
// -----------------------------
// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 26.06.2007 on http://yacy.net
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
// $LastChangedRevision: 1986 $
// $LastChangedBy: orbiter $
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package de.anomic.http;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;
import de.anomic.kelondro.util.ByteBuffer;
public class httpSSI {
public static void writeSSI(final ByteBuffer in, final OutputStream out, final String authorization, final String requesthost) throws IOException {
writeSSI(in, 0, out, authorization, requesthost);
}
public static void writeSSI(final ByteBuffer in, int off, final OutputStream out, final String authorization, final String requesthost) throws IOException {
int p = in.indexOf("<!--#".getBytes(), off);
int q;
while (p >= 0) {
q = in.indexOf("-->".getBytes(), p + 10);
if (out instanceof httpChunkedOutputStream) {
((httpChunkedOutputStream) out).write(in, off, p - off);
} else {
out.write(in.getBytes(off, p - off));
}
parseSSI(in, p, q + 3 - p, out, authorization, requesthost);
off = q + 3;
p = in.indexOf("<!--#".getBytes(), off);
}
if (out instanceof httpChunkedOutputStream) {
((httpChunkedOutputStream) out).write(in, off, in.length() - off);
} else {
out.write(in.getBytes(off, in.length() - off));
}
}
private static void parseSSI(final ByteBuffer in, final int off, final int len, final OutputStream out, final String authorization, final String requesthost) {
if (in.startsWith("<!--#include virtual=\"".getBytes(), off)) {
final int q = in.indexOf("\"".getBytes(), off + 22);
if (q > 0) {
final String path = in.toString(off + 22, q);
writeContent(path, out, authorization, requesthost);
}
}
}
private static void writeContent(String path, final OutputStream out, final String authorization, final String requesthost) {
// check if there are arguments in path string
String args = "";
final int argpos = path.indexOf('?');
if (argpos > 0) {
args = path.substring(argpos + 1);
path = path.substring(0, argpos);
}
// set up virtual connection properties to call httpdFileHander.doGet()
final Properties conProp = new Properties();
final httpRequestHeader header = new httpRequestHeader(httpd.reverseMappingCache);
conProp.setProperty(httpHeader.CONNECTION_PROP_METHOD, httpHeader.METHOD_GET);
conProp.setProperty(httpHeader.CONNECTION_PROP_PATH, path);
conProp.setProperty(httpHeader.CONNECTION_PROP_ARGS, args);
conProp.setProperty(httpHeader.CONNECTION_PROP_HTTP_VER, httpHeader.HTTP_VERSION_0_9);
conProp.setProperty(httpHeader.CONNECTION_PROP_CLIENTIP, requesthost);
header.put(httpRequestHeader.AUTHORIZATION, authorization);
httpdFileHandler.doGet(conProp, header, out);
}
}