// message.java
// -----------------------
// part of the AnomicHTTPD caching proxy
// (C) by Michael Peter Christen; mc@yacy.net
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// 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
// You must compile this file with
// javac -classpath .:../../classes message.java
// if the shell's current path is HTROOT/yacy
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import net.yacy.cora.document.UTF8;
import net.yacy.cora.protocol.Domains;
import net.yacy.cora.protocol.HeaderFramework;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.kelondro.logging.Log;
import net.yacy.kelondro.util.FileUtils;
import net.yacy.peers.Seed;
import net.yacy.peers.Protocol;
import net.yacy.peers.Network;
import net.yacy.search.Switchboard;
import de.anomic.data.MessageBoard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.tools.crypt;
public final class message {
private static SimpleDateFormat SimpleFormatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US);
public static String dateString(final Date date) {
return SimpleFormatter.format(date);
}
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
if (post == null || env == null) { return null; }
// return variable that accumulates replacements
final Switchboard sb = (Switchboard) env;
final serverObjects prop = new serverObjects();
if ((post == null) || (env == null)) return prop;
if (!Protocol.authentifyRequest(post, env)) return prop;
final String process = post.get("process", "permission");
final String key = post.get("key", "");
final String clientip = header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP, "<unknown>"); // read an artificial header addendum
final InetAddress ias = Domains.dnsResolve(clientip);
final int messagesize = 10240;
final int attachmentsize = 0;
prop.put("messagesize", "0");
prop.put("attachmentsize", "0");
final String youare = post.get("youare", ""); // seed hash of the target peer, needed for network stability
// check if we are the right target and requester has correct information about this peer
if ((sb.peers.mySeed() == null) || (!(sb.peers.mySeed().hash.equals(youare)))) {
// this request has a wrong target
prop.put("response", "-1"); // request rejected
return prop;
}
if ((sb.isRobinsonMode()) &&
(!((sb.isPublicRobinson()) ||
(sb.isInMyCluster(header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP)))))) {
// if we are a robinson cluster, answer only if this client is known by our network definition
prop.put("response", "-1"); // request rejected
return prop;
}
prop.put("messagesize", Integer.toString(messagesize));
prop.put("attachmentsize", Integer.toString(attachmentsize));
if (process.equals("permission")) {
// permission: respond with acceptable message and attachment size
// String iam = (String) post.get("iam", ""); // seed hash of requester
prop.put("response", "Welcome to my peer!");
// that's it!
}
if (process.equals("post")) {
// post: post message to message board
final String otherSeedString = post.get("myseed", "");
if (otherSeedString.length() == 0) {
prop.put("response", "-1"); // request rejected
return prop;
}
//Date remoteTime = yacyCore.parseUniversalDate((String) post.get(yacySeed.MYTIME)); // read remote time
Seed otherSeed;
try {
otherSeed = Seed.genRemoteSeed(otherSeedString, key, false, ias.getHostAddress());
} catch (final IOException e) {
prop.put("response", "-1"); // don't accept messages for bad seeds
return prop;
}
String subject = crypt.simpleDecode(post.get("subject", ""), key); // message's subject
String message = crypt.simpleDecode(post.get("message", ""), key); // message body
if (subject == null || message == null) {
prop.put("response", "-1"); // don't accept empty messages
return prop;
}
message = message.trim();
subject = subject.trim();
if (subject.length() == 0 || message.length() == 0) {
prop.put("response", "-1"); // don't accept empty messages
return prop;
}
prop.put("response", "Thank you!");
// save message
MessageBoard.entry msgEntry = null;
byte[] mb;
mb = UTF8.getBytes(message);
sb.messageDB.write(msgEntry = sb.messageDB.newEntry(
"remote",
otherSeed.get(Seed.NAME, "anonymous"), otherSeed.hash,
sb.peers.mySeed().getName(), sb.peers.mySeed().hash,
subject, mb));
messageForwardingViaEmail(sb, msgEntry);
// finally write notification
final File notifierSource = new File(sb.getAppPath(), sb.getConfig("htRootPath","htroot") + "/env/grafics/message.gif");
final File notifierDest = new File(sb.getDataPath("htDocsPath", "DATA/HTDOCS"), "notifier.gif");
try {
FileUtils.copy(notifierSource, notifierDest);
} catch (final IOException e) {
Log.logSevere("MESSAGE", "NEW MESSAGE ARRIVED! (error: " + e.getMessage() + ")");
}
}
// System.out.println("respond = " + prop.toString());
// return rewrite properties
return prop;
}
/*
* To: #[to]#
From: #[from]#
Subject: #[subject]#
Date: #[date]#
#[message]#
*/
private static void messageForwardingViaEmail(final Switchboard sb, final MessageBoard.entry msgEntry) {
try {
if (!sb.getConfigBool("msgForwardingEnabled", false)) return;
// get the recipient address
final String sendMailTo = sb.getConfig("msgForwardingTo","root@localhost").trim();
// get the sendmail configuration
final String sendMailStr = sb.getConfig("msgForwardingCmd","/usr/bin/sendmail")+" "+sendMailTo;
final String[] sendMail = sendMailStr.trim().split(" ");
// building the message text
final StringBuilder emailTxt = new StringBuilder();
emailTxt.append("To: ")
.append(sendMailTo)
.append("\nFrom: ")
.append("yacy@")
.append(sb.peers.mySeed().getName())
.append("\nSubject: [YaCy] ")
.append(msgEntry.subject().replace('\n', ' '))
.append("\nDate: ")
.append(msgEntry.date())
.append("\n")
.append("\nMessage from: ")
.append(msgEntry.author())
.append("/")
.append(msgEntry.authorHash())
.append("\nMessage to: ")
.append(msgEntry.recipient())
.append("/")
.append(msgEntry.recipientHash())
.append("\nCategory: ")
.append(msgEntry.category())
.append("\n===================================================================\n")
.append(UTF8.String(msgEntry.message()));
final Process process=Runtime.getRuntime().exec(sendMail);
final PrintWriter email = new PrintWriter(process.getOutputStream());
email.print(emailTxt.toString());
email.close();
} catch (final Exception e) {
Network.log.logWarning("message: message forwarding via email failed. ",e);
}
}
/*
on 83
DEBUG: message post values = {youare=Ty2F86ekSWM5, key=pPQSZaXD, iam=WSjicAx1hRio, process=permission}
von 93 wurde gesendet:
DEBUG: PUT BODY=------------1090394265522
Content-Disposition: form-data; name="youare"
Ty2F86ekSWM5
------------1090394265522
Content-Disposition: form-data; name="key"
pPQSZaXD
------------1090394265522
Content-Disposition: form-data; name="iam"
WSjicAx1hRio
------------1090394265522
Content-Disposition: form-data; name="process"
permission
------------1090394265522
on 93
DEBUG: message post values = {youare=WSjicAx1hRio, key=YJZLwaNS, iam=Ty2F86ekSWM5, process=permission}
*/
}