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Diffstat (limited to 'id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/config/proxy/ProxyConfigurationProvider.java')
| -rw-r--r-- | id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/config/proxy/ProxyConfigurationProvider.java | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/config/proxy/ProxyConfigurationProvider.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/config/proxy/ProxyConfigurationProvider.java new file mode 100644 index 000000000..fbd6474bb --- /dev/null +++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/config/proxy/ProxyConfigurationProvider.java @@ -0,0 +1,203 @@ +/* +* Copyright 2003 Federal Chancellery Austria +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +package at.gv.egovernment.moa.id.config.proxy; + +import java.io.File; +import java.io.FileInputStream; +import java.io.IOException; +import java.net.MalformedURLException; + +import org.w3c.dom.Element; + +import at.gv.egovernment.moa.id.config.ConfigurationException; +import at.gv.egovernment.moa.id.config.ConfigurationProvider; +import at.gv.egovernment.moa.id.config.ConnectionParameter; +import at.gv.egovernment.moa.logging.Logger; +import at.gv.egovernment.moa.util.DOMUtils; +import at.gv.egovernment.moa.util.FileUtils; + +/** + * A class providing access to the Proxy Part of the MOA-ID configuration data. + * + * <p>Configuration data is read from an XML file, whose location is given by + * the <code>moa.id.configuration</code> system property.</p> + * <p>This class implements the Singleton pattern. The <code>reload()</code> + * method can be used to update the configuration data. Therefore, it is not + * guaranteed that consecutive calls to <code>getInstance()</code> will return + * the same <code>ProxyConfigurationProvider</code> all the time. During the + * processing of a web service request, the current + * <code>TransactionContext</code> should be used to obtain the + * <code>ProxyConfigurationProvider</code> local to that request.</p> + * + * @author Stefan Knirsch + */ +public class ProxyConfigurationProvider extends ConfigurationProvider { + + /** Singleton instance. <code>null</code>, if none has been created. */ + private static ProxyConfigurationProvider instance; + + + // + // configuration data + // + /** + * connection parameters for connection to MOA ID Auth component + */ + private ConnectionParameter authComponentConnectionParameter; + /** + * configuration parameters for online applications + */ + private OAProxyParameter[] onlineApplicationProxyParameter; + + /** + * Return the single instance of configuration data. + * + * @return ProxyConfigurationProvider The current configuration data. + * @throws ConfigurationException + */ + public static synchronized ProxyConfigurationProvider getInstance() + throws ConfigurationException { + + if (instance == null) { + reload(); + } + return instance; + } + + /** + * Reload the configuration data and set it if successful. + * + * @return ProxyConfigurationProvider The loaded configuration data. + * @throws ConfigurationException Failure to load the configuration data. + */ + public static synchronized ProxyConfigurationProvider reload() + throws ConfigurationException { + String fileName = System.getProperty(CONFIG_PROPERTY_NAME); + if (fileName == null) { + throw new ConfigurationException("config.01", null); + } + Logger.info("Loading MOA-ID-PROXY configuration " + fileName); + + instance = new ProxyConfigurationProvider(fileName); + return instance; + } + + /** + * Constructor for ProxyConfigurationProvider. + */ + public ProxyConfigurationProvider(String fileName) + throws ConfigurationException { + + load(fileName); + } + + /** + * Load the configuration data from XML file with the given name and build + * the internal data structures representing the MOA configuration. + * + * @param fileName The name of the XML file to load. + * @throws ConfigurationException The MOA configuration could not be + * read/built. + */ + private void load(String fileName) throws ConfigurationException { + FileInputStream stream = null; + Element configElem; + ProxyConfigurationBuilder builder; + + try { + // load the main config file + stream = new FileInputStream(fileName); + configElem = DOMUtils.parseXmlValidating(stream); + } + catch (Throwable t) { + throw new ConfigurationException("config.03", null, t); + } + finally { + try { + if (stream != null) { + stream.close(); + } + } + catch (IOException e) { + } + } + try { + // determine the directory of the root config file + rootConfigFileDir = new File(fileName).getParent(); + try { + rootConfigFileDir = new File(rootConfigFileDir).toURL().toString(); + } catch (MalformedURLException t) { + throw new ConfigurationException("config.03", null, t); + } + + // build the internal datastructures + builder = new ProxyConfigurationBuilder(configElem, rootConfigFileDir); + authComponentConnectionParameter = builder.buildAuthComponentConnectionParameter(); + + onlineApplicationProxyParameter = builder.buildOnlineApplicationProxyParameters(); + for(int i = 0; i < onlineApplicationProxyParameter.length; i++) { + onlineApplicationProxyParameter[i].setConfigFileURL(FileUtils.makeAbsoluteURL(onlineApplicationProxyParameter[i].getConfigFileURL(), rootConfigFileDir)); + } + + genericConfiguration = builder.buildGenericConfiguration(); + defaultChainingMode = builder.getDefaultChainingMode(); + chainingModes = builder.buildChainingModes(); + trustedCACertificates = builder.getTrustedCACertificates(); + trustedCACertificates = FileUtils.makeAbsoluteURL(trustedCACertificates, rootConfigFileDir); + + } + catch (Throwable t) { + throw new ConfigurationException("config.02", null, t); + } + } + + /** + * Return a bean containing all information about the ProxyComponent + * @return The ConnectionParameter for the Proxy Component + */ + public ConnectionParameter getAuthComponentConnectionParameter() { + return authComponentConnectionParameter; + } + + /** + * Build an array of OnlineApplication Parameter Beans containing all + * information about the proxy component of the online application + * @return An OAProxyParameter array containing beans + * with all relevant information for the proxy component of the online + * application + */ + public OAProxyParameter[] getOnlineApplicationParameters() { + return onlineApplicationProxyParameter; + } + /** + * Provides configuration information regarding the online application behind + * the given URL, relevant to the MOA-ID Proxy component. + * + * @param oaURL URL requested for an online application + * @return an <code>OAProxyParameter</code>, or <code>null</code> + * if none is applicable + */ + public OAProxyParameter getOnlineApplicationParameter(String oaURL) { + OAProxyParameter[] oaParams = getOnlineApplicationParameters(); + for (int i = 0; i < oaParams.length; i++) { + OAProxyParameter oaParam = oaParams[i]; + if (oaURL.startsWith(oaParam.getPublicURLPrefix())) + return oaParam; + } + return null; + } + +}
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