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/* |
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* i-scream central monitoring system |
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* Copyright (C) 2000-2002 i-scream |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.filter.plugins; |
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package uk.org.iscream.cms.server.filter.plugins; |
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.filter.PluginServiceCheck; |
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import uk.org.iscream.cms.server.filter.PluginServiceCheck; |
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import java.net.URL; |
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import java.net.URLConnection; |
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import java.net.HttpURLConnection; |
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/** |
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* A first REAL service check! ;-) |
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* Tests whether a webserver is responding on port 80. |
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* Connects on port 80 and performs a simple HTTP HEAD request. |
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* Currently it sends back 200 for OK, anything else indicates a failure. |
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* |
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* Performs the service check on a given host. |
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* |
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* @param hostname the host to check |
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* @return XML data representing the result of the test |
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*/ |
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public String runServiceCheck(String hostname){ |
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HttpURLConnection connection = (HttpURLConnection) ((new URL("HTTP://" + hostname)).openConnection()); |
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// only get the head as we don't want any real content |
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connection.setRequestMethod("HEAD"); |
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// let the server know who we are, just to be nice, and get our name about ;p |
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connection.setRequestProperty("User-Agent", "i-scream HTTP Service Checker v" + revision.substring(11, revision.length() - 2)); |
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// connect and do the request |
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connection.connect(); |
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String status = ""; |
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String message = ""; |
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try { |
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HttpURLConnection connection = (HttpURLConnection) ((new URL("HTTP://" + hostname)).openConnection()); |
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// only get the head as we don't want any real content |
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connection.setRequestMethod("HEAD"); |
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// let the server know who we are, just to be nice, and get our name about ;p |
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connection.setRequestProperty("User-Agent", "i-scream HTTP Service Checker v" + REVISION.substring(11, REVISION.length() - 2)); |
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// connect and do the request |
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connection.connect(); |
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if (connection.getResponseCode() == 200 ) { |
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status = "0"; |
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} else { |
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status = "1"; |
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} |
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message = connection.getResponseMessage(); |
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connection.disconnect(); |
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} catch (Exception e) { |
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status = "1"; |
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message = "Service check failed to establish connection to host:" + e.getMessage(); |
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} |
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// send the results back |
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return "<HTTP status=\"" + connection.getResponseCode() + "\" message=\"" + connection.getResponseMessage() + "\"></HTTP>"; |
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return "<HTTP status=\"" + status + "\" message=\"" + message + "\"></HTTP>"; |
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} |
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/** |
