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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.core; |
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package uk.org.iscream.cms.server.core; |
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.util.*; |
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import uk.ac.ukc.iscream.componentmanager.*; |
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import uk.org.iscream.cms.server.util.*; |
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import uk.org.iscream.cms.server.componentmanager.*; |
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import java.net.InetAddress; |
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import java.net.UnknownHostException; |
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import java.util.*; |
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*/ |
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ConfigurationManagerServant() { |
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// assign some local variables |
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_configPath = System.getProperty("uk.ac.ukc.iscream.ConfigurationLocation"); |
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_systemConfigFile = System.getProperty("uk.ac.ukc.iscream.SystemConfigurationFile"); |
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_configPath = System.getProperty("uk.org.iscream.cms.server.ConfigurationLocation"); |
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_systemConfigFile = System.getProperty("uk.org.iscream.cms.server.SystemConfigurationFile"); |
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// load the system config |
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loadSystemConfig(); |
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} |
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// search config for group membership |
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LinkedList groups = getGroupMembership(source); |
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// and obain a list of groups by name |
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LinkedList nameGroups = getGroupMembership(source); |
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// add the hosts individual config to the start of the list |
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nameGroups.addFirst(source); |
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// this list will be used to compile the groupings |
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LinkedList groups = new LinkedList(); |
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// if we are dealing with a Host.<hostname> request, then we also |
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// want to look for ip address details, as configuration entries may relate to it |
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// if we can't resolve it, we don't look. |
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LinkedList ipGroups = null; |
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if (source.startsWith("Host.")) { |
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// hostname is after Host. |
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String hostname = source.substring(5); |
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try { |
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String ip = "Host." + InetAddress.getByName(hostname).getHostAddress(); |
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LinkedList ipGroups = getGroupMembership(ip); |
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groups.addFirst(ip); |
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ipGroups = getGroupMembership(ip); |
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ipGroups.addFirst(ip); |
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// add to our list of groups |
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groups.addAll(ipGroups); |
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} catch (UnknownHostException e) { |
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_logger.write(toString(), Logger.ERROR, "could not resolve hostname - " + hostname); |
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} |
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} |
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// add the rest of the groups to the end |
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groups.addAll(nameGroups); |
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// add the hosts individual config to the start of the list |
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groups.addFirst(source); |
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Iterator i = groups.iterator(); |
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String fileList = ""; |
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while (i.hasNext()) { |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* This uses the uk.ac.ukc.iscream.util.FormatName class |
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* This uses the uk.org.iscream.cms.server.util.FormatName class |
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* to format the toString() |
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* |
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* @return the name of this class and its CVS revision |
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* @return the list of groups that this source is a member of |
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*/ |
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private LinkedList getGroupMembership(String source) { |
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_logger.write(toString(), Logger.DEBUG, "searching group members for - " + source); |
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_logger.write(toString(), Logger.DEBUG, "searching groups for - " + source); |
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LinkedList groupMembership = new LinkedList(); |
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Iterator i = new TreeSet(_systemConfigHolder.keySet()).iterator(); |
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while(i.hasNext()) { |
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// if it is in the group |
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if (group.indexOf(source) != -1) { |
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groupMembership.add(key.substring(6)); |
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_logger.write(toString(), Logger.DEBUG, "group match found for - " + source + " in - " + key); |
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// if there are wildcards in the group |
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} else if (group.indexOf("*") != -1) { |
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// check the wildcards apply to this srce |
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if( wildcardCheck(source, group)) { |
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if(StringUtils.wildcardCheck(source, group)) { |
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groupMembership.add(key.substring(6)); |
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_logger.write(toString(), Logger.DEBUG, "wildcard group match found for - " + source + " in - " + key); |
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} |
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} |
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} |
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} |
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return groupMembership; |
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} |
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/** |
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* Checks that a given string is not matched within the |
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* given list of strings. eg:<br> |
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* <br> |
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* Given "stue5de.ukc.ac.uk"<br> |
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* And "raptor.ukc.ac.uk;stue*.ukc.ac.uk<br> |
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* <br> |
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* This method would return true as there is a match |
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* |
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* @param source the string to look for |
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* @param group the group to search for a wilcard entry |
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* |
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* @return if there is a match |
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*/ |
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private boolean wildcardCheck(String source, String group) { |
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boolean foundMatch = false; |
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StringTokenizer st = new StringTokenizer(group, ";"); |
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// go through all the hosts in the group |
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while (st.hasMoreTokens()) { |
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String host = st.nextToken(); |
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// this host has wildcards |
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if(host.indexOf("*") != -1) { |
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StringTokenizer hostst = new StringTokenizer(host, "*"); |
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String part = ""; |
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int index = 0; |
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// the first token will be everything at the start |
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// unless it starts with a wildcard |
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if(!host.startsWith("*")) { |
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part = hostst.nextToken(); |
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if (source.startsWith(part)) { |
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foundMatch = true; |
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index = part.length(); |
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} |
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// all of the start of the string is matched |
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} else { |
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foundMatch = true; |
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} |
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// if the start matched, we want to check the rest... |
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if (foundMatch) { |
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while (hostst.hasMoreTokens()) { |
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part = hostst.nextToken(); |
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// if the next section can't be matched |
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// then this isn't in the source |
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if(source.substring(index).indexOf(part) == -1) { |
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foundMatch = false; |
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// we don't want to look through any more of it |
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break; |
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} else { |
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foundMatch = true; |
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index += source.substring(index).indexOf(part) + part.length(); |
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} |
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} |
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// if we reach here and we've found a match |
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// we want to check that the last part |
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// of the wildcard string is the last part |
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// of the source, if it is, we break out |
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// and finish as we've found a match. |
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// if the end of the wildcard is a *, then |
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// we don't care |
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if (!host.endsWith("*") && foundMatch) { |
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if ((source.endsWith(part))) { |
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_logger.write(toString(), Logger.DEBUG, "wildcard match found for - " + source + " in - " + host); |
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break; |
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// if there is no match, say so so we go round again |
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} else { |
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foundMatch = false; |
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} |
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} else if (foundMatch) { |
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_logger.write(toString(), Logger.DEBUG, "wildcard match found for - " + source + " in - " + host); |
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break; |
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} |
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} |
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} |
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} |
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return foundMatch; |
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} |
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/** |
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* Build the properties as a Configuration to be |
