org.argeo.cms/src/org/argeo/cms/internal/kernel/Activator.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4 import java.net.URL;
   5 import java.nio.file.Files;
   6 import java.nio.file.Path;
   7 import java.security.AllPermission;
   8 import java.util.Dictionary;
   9 import java.util.List;
  10 import java.util.Locale;
  11
  12 import javax.security.auth.login.Configuration;
  13
  14 import org.apache.commons.logging.Log;
  15 import org.apache.commons.logging.LogFactory;
  16 import org.argeo.cms.CmsException;
  17 import org.argeo.ident.IdentClient;
  18 import org.argeo.node.ArgeoLogger;
  19 import org.argeo.node.NodeConstants;
  20 import org.argeo.node.NodeDeployment;
  21 import org.argeo.node.NodeInstance;
  22 import org.argeo.node.NodeState;
  23 import org.argeo.util.LangUtils;
  24 import org.ietf.jgss.GSSCredential;
  25 import org.osgi.framework.BundleActivator;
  26 import org.osgi.framework.BundleContext;
  27 import org.osgi.framework.Constants;
  28 import org.osgi.framework.ServiceReference;
  29 import org.osgi.service.condpermadmin.BundleLocationCondition;
  30 import org.osgi.service.condpermadmin.ConditionInfo;
  31 import org.osgi.service.condpermadmin.ConditionalPermissionAdmin;
  32 import org.osgi.service.condpermadmin.ConditionalPermissionInfo;
  33 import org.osgi.service.condpermadmin.ConditionalPermissionUpdate;
  34 import org.osgi.service.log.LogReaderService;
  35 import org.osgi.service.permissionadmin.PermissionInfo;
  36 import org.osgi.service.useradmin.UserAdmin;
  37 import org.osgi.util.tracker.ServiceTracker;
  38
  39 /**
  40  * Activates the kernel. Gives access to kernel information for the rest of the
  41  * bundle (and only it)
  42  */
  43 public class Activator implements BundleActivator {
  44         private final static Log log = LogFactory.getLog(Activator.class);
  45
  46         private static Activator instance;
  47
  48         // TODO make it configurable
  49         private boolean hardened = false;
  50
  51         private BundleContext bc;
  52
  53         private LogReaderService logReaderService;
  54
  55         private NodeLogger logger;
  56         private CmsState nodeState;
  57         private CmsDeployment nodeDeployment;
  58         private CmsInstance nodeInstance;
  59
  60         private ServiceTracker<UserAdmin, NodeUserAdmin> userAdminSt;
  61
  62         @Override
  63         public void start(BundleContext bundleContext) throws Exception {
  64                 Runtime.getRuntime().addShutdownHook(new CmsShutdown());
  65                 instance = this;
  66                 this.bc = bundleContext;
  67                 this.logReaderService = getService(LogReaderService.class);
  68
  69                 try {
  70                         initSecurity();
  71                         initArgeoLogger();
  72                         initNode();
  73
  74                         userAdminSt = new ServiceTracker<>(instance.bc, UserAdmin.class, null);
  75                         userAdminSt.open();
  76                         if (log.isTraceEnabled())
  77                                 log.trace("Kernel bundle started");
  78                 } catch (Throwable e) {
  79                         log.error("## FATAL: CMS activator failed", e);
  80                 }
  81         }
  82
  83         private void initSecurity() {
  84                 if (System.getProperty(KernelConstants.JAAS_CONFIG_PROP) == null) {
  85                         String jaasConfig = KernelConstants.JAAS_CONFIG;
  86                         URL url = getClass().getClassLoader().getResource(jaasConfig);
  87                         // System.setProperty(KernelConstants.JAAS_CONFIG_PROP,
  88                         // url.toExternalForm());
  89                         KernelUtils.setJaasConfiguration(url);
  90                 }
  91                 // explicitly load JAAS configuration
  92                 Configuration.getConfiguration();
  93
  94                 // code-level permissions
  95                 String osgiSecurity = KernelUtils.getFrameworkProp(Constants.FRAMEWORK_SECURITY);
  96                 if (osgiSecurity != null && Constants.FRAMEWORK_SECURITY_OSGI.equals(osgiSecurity)) {
  97                         // TODO rather use a tracker?
  98                         ConditionalPermissionAdmin permissionAdmin = bc
  99                                         .getService(bc.getServiceReference(ConditionalPermissionAdmin.class));
 100                         if (!hardened) {
 101                                 // All permissions to all bundles
 102                                 ConditionalPermissionUpdate update = permissionAdmin.newConditionalPermissionUpdate();
 103                                 update.getConditionalPermissionInfos().add(permissionAdmin.newConditionalPermissionInfo(null,
 104                                                 new ConditionInfo[] {
 105                                                                 new ConditionInfo(BundleLocationCondition.class.getName(), new String[] { "*" }) },
 106                                                 new PermissionInfo[] { new PermissionInfo(AllPermission.class.getName(), null, null) },
 107                                                 ConditionalPermissionInfo.ALLOW));
 108                         } else {
 109                                 SecurityProfile securityProfile = new SecurityProfile() {
 110                                 };
 111                                 securityProfile.applySystemPermissions(permissionAdmin);
 112                         }
 113                 }
 114
 115         }
 116
 117         private void initArgeoLogger() {
 118                 logger = new NodeLogger(logReaderService);
 119                 bc.registerService(ArgeoLogger.class, logger, null);
 120         }
 121
 122         private void initNode() throws IOException {
 123                 // Node state
 124                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
 125                 String stateUuid;
 126                 if (Files.exists(stateUuidPath)) {
 127                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
 128                 } else {
 129                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
 130                         Files.write(stateUuidPath, stateUuid.getBytes());
 131                 }
 132                 nodeState = new CmsState(stateUuid);
 133                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
 134                 regProps.put(NodeConstants.CN, stateUuid);
 135                 bc.registerService(NodeState.class, nodeState, regProps);
 136
 137                 // Node deployment
 138                 nodeDeployment = new CmsDeployment();
 139                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
 140
 141                 // Node instance
 142                 nodeInstance = new CmsInstance();
 143                 bc.registerService(NodeInstance.class, nodeInstance, null);
 144         }
 145
 146         @Override
 147         public void stop(BundleContext bundleContext) throws Exception {
 148                 try {
 149                         if (nodeInstance != null)
 150                                 nodeInstance.shutdown();
 151                         if (nodeDeployment != null)
 152                                 nodeDeployment.shutdown();
 153                         if (nodeState != null)
 154                                 nodeState.shutdown();
 155
 156                         if (userAdminSt != null)
 157                                 userAdminSt.close();
 158
 159                         instance = null;
 160                         this.bc = null;
 161                         this.logReaderService = null;
 162                         // this.configurationAdmin = null;
 163                 } catch (Exception e) {
 164                         log.error("CMS activator shutdown failed", e);
 165                 }
 166         }
 167
 168         private <T> T getService(Class<T> clazz) {
 169                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 170                 if (sr == null)
 171                         throw new CmsException("No service available for " + clazz);
 172                 return bc.getService(sr);
 173         }
 174
 175         public static NodeState getNodeState() {
 176                 return instance.nodeState;
 177         }
 178
 179         public static GSSCredential getAcceptorCredentials() {
 180                 return getNodeUserAdmin().getAcceptorCredentials();
 181         }
 182
 183         public static boolean isSingleUser() {
 184                 return getNodeUserAdmin().isSingleUser();
 185         }
 186
 187         public static UserAdmin getUserAdmin() {
 188                 return (UserAdmin) getNodeUserAdmin();
 189         }
 190
 191         public static String getHttpProxySslHeader() {
 192                 return KernelUtils.getFrameworkProp(NodeConstants.HTTP_PROXY_SSL_DN);
 193         }
 194
 195         public static IdentClient getIdentClient(String remoteAddr) {
 196                 if (!IdentClient.isDefaultAuthdPassphraseFileAvailable())
 197                         return null;
 198                 // TODO make passphrase more configurable
 199                 return new IdentClient(remoteAddr);
 200         }
 201
 202         private static NodeUserAdmin getNodeUserAdmin() {
 203                 NodeUserAdmin res;
 204                 try {
 205                         res = instance.userAdminSt.waitForService(60000);
 206                 } catch (InterruptedException e) {
 207                         throw new CmsException("Cannot retrieve Node user admin", e);
 208                 }
 209                 if (res == null)
 210                         throw new CmsException("No Node user admin found");
 211
 212                 return res;
 213                 // ServiceReference<UserAdmin> sr =
 214                 // instance.bc.getServiceReference(UserAdmin.class);
 215                 // NodeUserAdmin userAdmin = (NodeUserAdmin) instance.bc.getService(sr);
 216                 // return userAdmin;
 217
 218         }
 219
 220         // static CmsSecurity getCmsSecurity() {
 221         // return instance.nodeSecurity;
 222         // }
 223
 224         public String[] getLocales() {
 225                 // TODO optimize?
 226                 List<Locale> locales = getNodeState().getLocales();
 227                 String[] res = new String[locales.size()];
 228                 for (int i = 0; i < locales.size(); i++)
 229                         res[i] = locales.get(i).toString();
 230                 return res;
 231         }
 232
 233 }