| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.client.net.NetConnection |
| 4 | |
| 5 | Copyright (c) 2001, 2005 The Apache Software Foundation or its licensors, where applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | package org.apache.derby.client.net; |
| 21 | |
| 22 | import java.sql.SQLException; |
| 23 | import org.apache.derby.client.am.CallableStatement; |
| 24 | import org.apache.derby.client.am.DatabaseMetaData; |
| 25 | import org.apache.derby.client.am.DisconnectException; |
| 26 | import org.apache.derby.client.am.EncryptionManager; |
| 27 | import org.apache.derby.client.am.PreparedStatement; |
| 28 | import org.apache.derby.client.am.ProductLevel; |
| 29 | import org.apache.derby.client.am.SqlException; |
| 30 | import org.apache.derby.client.am.ClientMessageId; |
| 31 | import org.apache.derby.shared.common.reference.MessageId; |
| 32 | import org.apache.derby.shared.common.i18n.MessageUtil; |
| 33 | import org.apache.derby.client.am.Statement; |
| 34 | import org.apache.derby.client.am.Utils; |
| 35 | import org.apache.derby.jdbc.ClientBaseDataSource; |
| 36 | import org.apache.derby.jdbc.ClientDataSource; |
| 37 | import org.apache.derby.jdbc.ClientDriver; |
| 38 | import org.apache.derby.client.ClientPooledConnection; |
| 39 | |
| 40 | import org.apache.derby.shared.common.reference.SQLState; |
| 41 | |
| 42 | public class NetConnection extends org.apache.derby.client.am.Connection { |
| 43 | |
| 44 | // Use this to get internationalized strings... |
| 45 | protected static MessageUtil msgutil = SqlException.getMessageUtil(); |
| 46 | |
| 47 | protected NetAgent netAgent_; |
| 48 | //contains a reference to the PooledConnection from which this created |
| 49 | //It then passes this reference to the PreparedStatement created from it |
| 50 | //The PreparedStatement then uses this to pass the close and the error |
| 51 | //occurred conditions back to the PooledConnection which can then throw the |
| 52 | //appropriate events. |
| 53 | protected ClientPooledConnection pooledConnection_ = null; |
| 54 | |
| 55 | |
| 56 | // For XA Transaction |
| 57 | protected int pendingEndXACallinfoOffset_ = -1; |
| 58 | |
| 59 | |
| 60 | // byte[] to save the connect flows for connection reset |
| 61 | protected byte[] cachedConnectBytes_ = null; |
| 62 | protected boolean wroteConnectFromCache_ = false; |
| 63 | //-----------------------------state------------------------------------------ |
| 64 | |
| 65 | // these variables store the manager levels for the connection. |
| 66 | // they are initialized to the highest value which this driver supports |
| 67 | // at the current time. theses intial values should be increased when |
| 68 | // new manager level support is added to this driver. these initial values |
| 69 | // are sent to the server in the excsat command. the server will return a |
| 70 | // set of values and these will be parsed out by parseExcsatrd and parseMgrlvlls. |
| 71 | // during this parsing, these instance variable values will be reset to the negotiated |
| 72 | // levels for the connection. these values may be less than the |
| 73 | // values origionally set here at constructor time. it is these new values |
| 74 | // (following the parse) which are the levels for the connection. after |
| 75 | // a successful excsat command, these values can be checked to see |
| 76 | // what protocol is supported by this particular connection. |
| 77 | // if support for a new manager class is added, the buildExcsat and parseMgrlvlls |
| 78 | // methods will need to be changed to accomodate sending and receiving the new class. |
| 79 | protected int targetAgent_ = NetConfiguration.MGRLVL_7; //01292003jev monitoring |
| 80 | protected int targetCmntcpip_ = NetConfiguration.MGRLVL_5; |
| 81 | protected int targetRdb_ = NetConfiguration.MGRLVL_7; |
| 82 | public int targetSecmgr_ = NetConfiguration.MGRLVL_7; |
| 83 | protected int targetCmnappc_ = NetConfiguration.MGRLVL_NA; //NA since currently not used by net |
| 84 | protected int targetXamgr_ = NetConfiguration.MGRLVL_7; |
| 85 | protected int targetSyncptmgr_ = NetConfiguration.MGRLVL_NA; |
| 86 | protected int targetRsyncmgr_ = NetConfiguration.MGRLVL_NA; |
| 87 | |
| 88 | |
| 89 | // this is the external name of the target server. |
| 90 | // it is set by the parseExcsatrd method but not really used for much at this |
| 91 | // time. one possible use is for logging purposes and in the future it |
| 92 | // may be placed in the trace. |
| 93 | String targetExtnam_; |
| 94 | String extnam_; |
| 95 | |
| 96 | // Server Class Name of the target server returned in excsatrd. |
| 97 | // Again this is something which the driver is not currently using |
| 98 | // to make any decions. Right now it is just stored for future logging. |
| 99 | // It does contain some useful information however and possibly |
| 100 | // the database meta data object will make use of this |
| 101 | // for example, the product id (prdid) would give this driver an idea of |
| 102 | // what type of sevrer it is connected to. |
| 103 | public String targetSrvclsnm_; |
| 104 | |
| 105 | // Server Name of the target server returned in excsatrd. |
| 106 | // Again this is something which we don't currently use but |
| 107 | // keep it in case we want to log it in some problem determination |
| 108 | // trace/dump later. |
| 109 | protected String targetSrvnam_; |
| 110 | |
| 111 | // Server Product Release Level of the target server returned in excsatrd. |
| 112 | // specifies the procuct release level of a ddm server. |
| 113 | // Again this is something which we don't currently use but |
| 114 | // keep it in case we want to log it in some problem determination |
| 115 | // trace/dump later. |
| 116 | public String targetSrvrlslv_; |
| 117 | |
| 118 | // Keys used for encryption. |
| 119 | transient byte[] publicKey_; |
| 120 | transient byte[] targetPublicKey_; |
| 121 | |
| 122 | // Product-Specific Data (prddta) sent to the server in the accrdb command. |
| 123 | // The prddta has a specified format. It is saved in case it is needed again |
| 124 | // since it takes a little effort to compute. Saving this information is |
| 125 | // useful for when the connect flows need to be resent (right now the connect |
| 126 | // flow is resent when this driver disconnects and reconnects with |
| 127 | // non unicode ccsids. this is done when the server doesn't recoginze the |
| 128 | // unicode ccsids). |
| 129 | // |
| 130 | |
| 131 | byte[] prddta_; |
| 132 | |
| 133 | // Correlation Token of the source sent to the server in the accrdb. |
| 134 | // It is saved like the prddta in case it is needed for a connect reflow. |
| 135 | public byte[] crrtkn_; |
| 136 | |
| 137 | // The Secmec used by the target. |
| 138 | // It contains the negotiated security mechanism for the connection. |
| 139 | // Initially the value of this is 0. It is set only when the server and |
| 140 | // the target successfully negotiate a security mechanism. |
| 141 | int targetSecmec_; |
| 142 | |
| 143 | // the security mechanism requested by the application |
| 144 | protected int securityMechanism_; |
| 145 | |
| 146 | // stored the password for deferred reset only. |
| 147 | private transient char[] deferredResetPassword_ = null; |
| 148 | |
| 149 | //If Network Server gets null connection from the embedded driver, |
| 150 | //it sends RDBAFLRM followed by SQLCARD with null SQLException. |
| 151 | //Client will parse the SQLCARD and set connectionNull to true if the |
| 152 | //SQLCARD is empty. If connectionNull=true, connect method in |
| 153 | //ClientDriver will in turn return null connection. |
| 154 | private boolean connectionNull = false; |
| 155 | |
| 156 | private void setDeferredResetPassword(String password) { |
| 157 | deferredResetPassword_ = (password == null) ? null : flipBits(password.toCharArray()); |
| 158 | } |
| 159 | |
| 160 | private String getDeferredResetPassword() { |
| 161 | if (deferredResetPassword_ == null) { |
| 162 | return null; |
| 163 | } |
| 164 | String password = new String(flipBits(deferredResetPassword_)); |
| 165 | flipBits(deferredResetPassword_); // re-encrypt password |
| 166 | return password; |
| 167 | } |
| 168 | |
| 169 | protected byte[] cnntkn_ = null; |
| 170 | |
| 171 | // resource manager Id for XA Connections. |
| 172 | private int rmId_ = 0; |
| 173 | protected NetXAResource xares_ = null; |
| 174 | protected java.util.Hashtable indoubtTransactions_ = null; |
| 175 | protected int currXACallInfoOffset_ = 0; |
| 176 | private short seqNo_ = 1; |
| 177 | |
| 178 | // Flag to indicate a read only transaction |
| 179 | protected boolean readOnlyTransaction_ = true; |
| 180 | |
| 181 | //---------------------constructors/finalizer--------------------------------- |
| 182 | |
| 183 | public NetConnection(NetLogWriter netLogWriter, |
| 184 | String databaseName, |
| 185 | java.util.Properties properties) throws SqlException { |
| 186 | super(netLogWriter, 0, "", -1, databaseName, properties); |
| 187 | } |
| 188 | |
| 189 | public NetConnection(NetLogWriter netLogWriter, |
| 190 | org.apache.derby.jdbc.ClientBaseDataSource dataSource, |
| 191 | String user, |
| 192 | String password) throws SqlException { |
| 193 | super(netLogWriter, user, password, dataSource); |
| 194 | setDeferredResetPassword(password); |
| 195 | } |
| 196 | |
| 197 | // For jdbc 1 connections |
| 198 | public NetConnection(NetLogWriter netLogWriter, |
| 199 | int driverManagerLoginTimeout, |
| 200 | String serverName, |
| 201 | int portNumber, |
| 202 | String databaseName, |
| 203 | java.util.Properties properties) throws SqlException { |
| 204 | super(netLogWriter, driverManagerLoginTimeout, serverName, portNumber, databaseName, properties); |
| 205 | netAgent_ = (NetAgent) super.agent_; |
| 206 | if (netAgent_.exceptionOpeningSocket_ != null) { |
| 207 | throw netAgent_.exceptionOpeningSocket_; |
| 208 | } |
| 209 | checkDatabaseName(); |
| 210 | String password = ClientBaseDataSource.getPassword(properties); |
| 211 | securityMechanism_ = ClientBaseDataSource.getSecurityMechanism(properties); |
| 212 | flowConnect(password, securityMechanism_); |
| 213 | if(!isConnectionNull()) |
| 214 | completeConnect(); |
| 215 | } |
| 216 | |
| 217 | // For JDBC 2 Connections |
| 218 | public NetConnection(NetLogWriter netLogWriter, |
| 219 | String user, |
| 220 | String password, |
| 221 | org.apache.derby.jdbc.ClientBaseDataSource dataSource, |
| 222 | int rmId, |
| 223 | boolean isXAConn) throws SqlException { |
| 224 | super(netLogWriter, user, password, isXAConn, dataSource); |
| 225 | netAgent_ = (NetAgent) super.agent_; |
| 226 | initialize(user, password, dataSource, rmId, isXAConn); |
| 227 | } |
| 228 | |
| 229 | public NetConnection(NetLogWriter netLogWriter, |
| 230 | String ipaddr, |
| 231 | int portNumber, |
| 232 | org.apache.derby.jdbc.ClientBaseDataSource dataSource, |
| 233 | boolean isXAConn) throws SqlException { |
| 234 | super(netLogWriter, isXAConn, dataSource); |
| 235 | netAgent_ = (NetAgent) super.agent_; |
| 236 | if (netAgent_.exceptionOpeningSocket_ != null) { |
| 237 | throw netAgent_.exceptionOpeningSocket_; |
| 238 | } |
| 239 | checkDatabaseName(); |
| 240 | this.isXAConnection_ = isXAConn; |
| 241 | flowSimpleConnect(); |
| 242 | productID_ = targetSrvrlslv_; |
| 243 | super.completeConnect(); |
| 244 | } |
| 245 | |
| 246 | // For JDBC 2 Connections |
| 247 | /** |
| 248 | * This constructor is called from the ClientPooledConnection object |
| 249 | * to enable the NetConnection to pass <code>this</code> on to the associated |
| 250 | * prepared statement object thus enabling the prepared statement object |
| 251 | * to inturn raise the statement events to the ClientPooledConnection object |
| 252 | * @param netLogWriter NetLogWriter object associated with this connection |
| 253 | * @param user user id for this connection |
| 254 | * @param password password for this connection |
| 255 | * @param dataSource The DataSource object passed from the PooledConnection |
| 256 | * object from which this constructor was called |
| 257 | * @param rmId The Resource manager ID for XA Connections |
| 258 | * @param isXAConn true if this is a XA connection |
| 259 | * @param cpc The ClientPooledConnection object from which this |
| 260 | * NetConnection constructor was called. This is used |
| 261 | * to pass StatementEvents back to the pooledConnection |
| 262 | * object |
| 263 | * @throws SqlException |
| 264 | */ |
| 265 | |
| 266 | public NetConnection(NetLogWriter netLogWriter, |
| 267 | String user, |
| 268 | String password, |
| 269 | org.apache.derby.jdbc.ClientBaseDataSource dataSource, |
| 270 | int rmId, |
| 271 | boolean isXAConn, |
| 272 | ClientPooledConnection cpc) throws SqlException { |
| 273 | super(netLogWriter, user, password, isXAConn, dataSource); |
| 274 | netAgent_ = (NetAgent) super.agent_; |
| 275 | initialize(user, password, dataSource, rmId, isXAConn); |
| 276 | this.pooledConnection_=cpc; |
| 277 | } |
| 278 | |
| 279 | private void initialize(String user, |
| 280 | String password, |
| 281 | org.apache.derby.jdbc.ClientBaseDataSource dataSource, |
| 282 | int rmId, |
| 283 | boolean isXAConn) throws SqlException { |
| 284 | securityMechanism_ = dataSource.getSecurityMechanism(password); |
| 285 | |
| 286 | setDeferredResetPassword(password); |
| 287 | checkDatabaseName(); |
| 288 | dataSource_ = dataSource; |
| 289 | this.rmId_ = rmId; |
| 290 | this.isXAConnection_ = isXAConn; |
| 291 | flowConnect(password, securityMechanism_); |
| 292 | completeConnect(); |
| 293 | |
| 294 | } |
| 295 | |
| 296 | // preferably without password in the method signature. |
| 297 | // We can probally get rid of flowReconnect method. |
| 298 | public void resetNetConnection(org.apache.derby.client.am.LogWriter logWriter, |
| 299 | String user, |
| 300 | String password, |
| 301 | org.apache.derby.jdbc.ClientBaseDataSource ds, |
| 302 | boolean recomputeFromDataSource) throws SqlException { |
| 303 | super.resetConnection(logWriter, user, ds, recomputeFromDataSource); |
| 304 | //---------------------------------------------------- |
| 305 | if (recomputeFromDataSource) { |
| 306 | // do not reset managers on a connection reset. this information shouldn't |
| 307 | // change and can be used to check secmec support. |
| 308 | |
| 309 | targetExtnam_ = null; |
| 310 | targetSrvclsnm_ = null; |
| 311 | targetSrvnam_ = null; |
| 312 | targetSrvrlslv_ = null; |
| 313 | publicKey_ = null; |
| 314 | targetPublicKey_ = null; |
| 315 | targetSecmec_ = 0; |
| 316 | if (ds != null && securityMechanism_ == 0) { |
| 317 | securityMechanism_ = ds.getSecurityMechanism(password); |
| 318 | } |
| 319 | resetConnectionAtFirstSql_ = false; |
| 320 | |
| 321 | } |
| 322 | if (password != null) { |
| 323 | deferredResetPassword_ = null; |
| 324 | } else { |
| 325 | password = getDeferredResetPassword(); |
| 326 | } |
| 327 | // properties prddta_ and crrtkn_ will be initialized by |
| 328 | // calls to constructPrddta() and constructCrrtkn() |
| 329 | //---------------------------------------------------------- |
| 330 | boolean isDeferredReset = flowReconnect(password, securityMechanism_); |
| 331 | completeReset(isDeferredReset, recomputeFromDataSource); |
| 332 | } |
| 333 | |
| 334 | |
| 335 | protected void reset_(org.apache.derby.client.am.LogWriter logWriter, |
| 336 | String user, String password, |
| 337 | ClientBaseDataSource ds, |
| 338 | boolean recomputeFromDataSource) throws SqlException { |
| 339 | checkResetPreconditions(logWriter, user, password, ds); |
| 340 | resetNetConnection(logWriter, user, password, ds, recomputeFromDataSource); |
| 341 | } |
| 342 | |
| 343 | protected void reset_(org.apache.derby.client.am.LogWriter logWriter, |
| 344 | ClientBaseDataSource ds, |
| 345 | boolean recomputeFromDataSource) throws SqlException { |
| 346 | checkResetPreconditions(logWriter, null, null, ds); |
| 347 | resetNetConnection(logWriter, ds, recomputeFromDataSource); |
| 348 | } |
| 349 | |
| 350 | private void resetNetConnection(org.apache.derby.client.am.LogWriter logWriter, |
| 351 | org.apache.derby.jdbc.ClientBaseDataSource ds, |
| 352 | boolean recomputeFromDataSource) throws SqlException { |
| 353 | super.resetConnection(logWriter, null, ds, recomputeFromDataSource); |
| 354 | //---------------------------------------------------- |
| 355 | if (recomputeFromDataSource) { |
| 356 | // do not reset managers on a connection reset. this information shouldn't |
| 357 | // change and can be used to check secmec support. |
| 358 | |
| 359 | targetExtnam_ = null; |
| 360 | targetSrvclsnm_ = null; |
| 361 | targetSrvnam_ = null; |
| 362 | targetSrvrlslv_ = null; |
| 363 | publicKey_ = null; |
| 364 | targetPublicKey_ = null; |
| 365 | targetSecmec_ = 0; |
| 366 | if (ds != null && securityMechanism_ == 0) { |
| 367 | securityMechanism_ = ds.getSecurityMechanism(); |
| 368 | } |
| 369 | resetConnectionAtFirstSql_ = false; |
| 370 | } |
| 371 | // properties prddta_ and crrtkn_ will be initialized by |
| 372 | // calls to constructPrddta() and constructCrrtkn() |
| 373 | //---------------------------------------------------------- |
| 374 | boolean isDeferredReset = flowReconnect(null, securityMechanism_); |
| 375 | completeReset(isDeferredReset, recomputeFromDataSource); |
| 376 | } |
| 377 | |
| 378 | protected void checkResetPreconditions(org.apache.derby.client.am.LogWriter logWriter, |
| 379 | String user, |
| 380 | String password, |
| 381 | ClientBaseDataSource ds) throws SqlException { |
| 382 | if (inUnitOfWork_) { |
| 383 | throw new SqlException(logWriter, |
| 384 | new ClientMessageId(SQLState.NET_CONNECTION_RESET_NOT_ALLOWED_IN_UNIT_OF_WORK)); |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | java.util.List getSpecialRegisters() { |
| 389 | if (xares_ != null) { |
| 390 | return xares_.getSpecialRegisters(); |
| 391 | } else { |
| 392 | return null; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | public void addSpecialRegisters(String s) { |
| 397 | if (xares_ != null) { |
| 398 | xares_.addSpecialRegisters(s); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | public void completeConnect() throws SqlException { |
| 403 | super.completeConnect(); |
| 404 | } |
| 405 | |
| 406 | protected void completeReset(boolean isDeferredReset, boolean recomputeFromDataSource) throws SqlException { |
| 407 | super.completeReset(isDeferredReset, recomputeFromDataSource); |
| 408 | } |
| 409 | |
| 410 | public void flowConnect(String password, |
| 411 | int securityMechanism) throws SqlException { |
| 412 | netAgent_ = (NetAgent) super.agent_; |
| 413 | constructExtnam(); |
| 414 | // these calls need to be after newing up the agent |
| 415 | // because they require the ccsid manager |
| 416 | constructPrddta(); // construct product data |
| 417 | |
| 418 | netAgent_.typdef_ = new Typdef(netAgent_, 1208, NetConfiguration.SYSTEM_ASC, 1200, 1208); |
| 419 | netAgent_.targetTypdef_ = new Typdef(netAgent_); |
| 420 | netAgent_.originalTargetTypdef_ = netAgent_.targetTypdef_; |
| 421 | setDeferredResetPassword(password); |
| 422 | try { |
| 423 | switch (securityMechanism) { |
| 424 | case NetConfiguration.SECMEC_USRIDPWD: // Clear text user id and password |
| 425 | checkUserPassword(user_, password); |
| 426 | flowUSRIDPWDconnect(password); |
| 427 | break; |
| 428 | case NetConfiguration.SECMEC_USRIDONL: // Clear text user, no password sent to server |
| 429 | checkUser(user_); |
| 430 | flowUSRIDONLconnect(); |
| 431 | break; |
| 432 | case NetConfiguration.SECMEC_USRENCPWD: // Clear text user, encrypted password |
| 433 | checkUserPassword(user_, password); |
| 434 | flowUSRENCPWDconnect(password); |
| 435 | break; |
| 436 | case NetConfiguration.SECMEC_EUSRIDPWD: // Encrypted user, encrypted password |
| 437 | checkUserPassword(user_, password); |
| 438 | flowEUSRIDPWDconnect(password); |
| 439 | break; |
| 440 | case NetConfiguration.SECMEC_EUSRIDDTA: |
| 441 | checkUserPassword(user_, password); |
| 442 | flowEUSRIDDTAconnect(); |
| 443 | break; |
| 444 | case NetConfiguration.SECMEC_EUSRPWDDTA: |
| 445 | checkUserPassword(user_, password); |
| 446 | flowEUSRPWDDTAconnect(password); |
| 447 | break; |
| 448 | |
| 449 | default: |
| 450 | throw new SqlException(agent_.logWriter_, |
| 451 | new ClientMessageId(SQLState.SECMECH_NOT_SUPPORTED), |
| 452 | new Integer(securityMechanism)); |
| 453 | } |
| 454 | } catch (java.lang.Throwable e) { // if *anything* goes wrong, make sure the connection is destroyed |
| 455 | // always mark the connection closed in case of an error. |
| 456 | // This prevents attempts to use this closed connection |
| 457 | // to retrieve error message text if an error SQLCA |
| 458 | // is returned in one of the connect flows. |
| 459 | open_ = false; |
| 460 | // logWriter may be closed in agent_.close(), |
| 461 | // so SqlException needs to be created before that |
| 462 | // but to be thrown after. |
| 463 | SqlException exceptionToBeThrown; |
| 464 | if (e instanceof SqlException) // rethrow original exception if it's an SqlException |
| 465 | { |
| 466 | exceptionToBeThrown = (SqlException) e; |
| 467 | } else // any other exceptions will be wrapped by an SqlException first |
| 468 | { |
| 469 | exceptionToBeThrown = new SqlException(agent_.logWriter_, |
| 470 | new ClientMessageId(SQLState.JAVA_EXCEPTION), |
| 471 | e.getClass().getName(), e.getMessage(), e); |
| 472 | } |
| 473 | |
| 474 | try { |
| 475 | if (agent_ != null) { |
| 476 | agent_.close(); |
| 477 | } |
| 478 | } catch (SqlException ignoreMe) { |
| 479 | } |
| 480 | |
| 481 | throw exceptionToBeThrown; |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | protected void flowSimpleConnect() throws SqlException { |
| 486 | netAgent_ = (NetAgent) super.agent_; |
| 487 | constructExtnam(); |
| 488 | // these calls need to be after newing up the agent |
| 489 | // because they require the ccsid manager |
| 490 | constructPrddta(); // construct product data |
| 491 | |
| 492 | netAgent_.typdef_ = new Typdef(netAgent_, 1208, NetConfiguration.SYSTEM_ASC, 1200, 1208); |
| 493 | netAgent_.targetTypdef_ = new Typdef(netAgent_); |
| 494 | netAgent_.originalTargetTypdef_ = netAgent_.targetTypdef_; |
| 495 | |
| 496 | try { |
| 497 | flowServerAttributes(); |
| 498 | } catch (java.lang.Throwable e) { // if *anything* goes wrong, make sure the connection is destroyed |
| 499 | // always mark the connection closed in case of an error. |
| 500 | // This prevents attempts to use this closed connection |
| 501 | // to retrieve error message text if an error SQLCA |
| 502 | // is returned in one of the connect flows. |
| 503 | open_ = false; |
| 504 | // logWriter may be closed in agent_.close(), |
| 505 | // so SqlException needs to be created before that |
| 506 | // but to be thrown after. |
| 507 | SqlException exceptionToBeThrown; |
| 508 | if (e instanceof SqlException) // rethrow original exception if it's an SqlException |
| 509 | { |
| 510 | exceptionToBeThrown = (SqlException) e; |
| 511 | } else // any other exceptions will be wrapped by an SqlException first |
| 512 | { |
| 513 | exceptionToBeThrown = new SqlException(agent_.logWriter_, |
| 514 | new ClientMessageId(SQLState.JAVA_EXCEPTION), |
| 515 | e.getClass().getName(), e.getMessage(), e); |
| 516 | } |
| 517 | |
| 518 | try { |
| 519 | if (agent_ != null) { |
| 520 | agent_.close(); |
| 521 | } |
| 522 | } catch (SqlException ignoreMe) { |
| 523 | } |
| 524 | |
| 525 | throw exceptionToBeThrown; |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | protected boolean flowReconnect(String password, int securityMechanism) throws SqlException { |
| 530 | constructExtnam(); |
| 531 | // these calls need to be after newing up the agent |
| 532 | // because they require the ccsid manager |
| 533 | constructPrddta(); //modify this to not new up an array |
| 534 | |
| 535 | checkSecmgrForSecmecSupport(securityMechanism); |
| 536 | try { |
| 537 | switch (securityMechanism) { |
| 538 | case NetConfiguration.SECMEC_USRIDPWD: // Clear text user id and password |
| 539 | checkUserPassword(user_, password); |
| 540 | resetConnectionAtFirstSql_ = true; |
| 541 | setDeferredResetPassword(password); |
| 542 | return true; |
| 543 | case NetConfiguration.SECMEC_USRIDONL: // Clear text user, no password sent to server |
| 544 | checkUser(user_); |
| 545 | resetConnectionAtFirstSql_ = true; |
| 546 | return true; |
| 547 | case NetConfiguration.SECMEC_USRENCPWD: // Clear text user, encrypted password |
| 548 | checkUserPassword(user_, password); |
| 549 | resetConnectionAtFirstSql_ = true; |
| 550 | setDeferredResetPassword(password); |
| 551 | return true; |
| 552 | case NetConfiguration.SECMEC_EUSRIDPWD: // Encrypted user, encrypted password |
| 553 | checkUserPassword(user_, password); |
| 554 | resetConnectionAtFirstSql_ = true; |
| 555 | setDeferredResetPassword(password); |
| 556 | return true; |
| 557 | case NetConfiguration.SECMEC_EUSRIDDTA: |
| 558 | checkUserPassword(user_, password); |
| 559 | resetConnectionAtFirstSql_ = true; |
| 560 | setDeferredResetPassword(password); |
| 561 | return true; |
| 562 | case NetConfiguration.SECMEC_EUSRPWDDTA: |
| 563 | checkUserPassword(user_, password); |
| 564 | resetConnectionAtFirstSql_ = true; |
| 565 | setDeferredResetPassword(password); |
| 566 | return true; |
| 567 | default: |
| 568 | throw new SqlException(agent_.logWriter_, |
| 569 | new ClientMessageId(SQLState.SECMECH_NOT_SUPPORTED), |
| 570 | new Integer(securityMechanism)); |
| 571 | } |
| 572 | } catch (SqlException sqle) { // this may not be needed because on method up the stack |
| 573 | open_ = false; // all reset exceptions are caught and wrapped in disconnect exceptions |
| 574 | try { |
| 575 | if (agent_ != null) { |
| 576 | agent_.close(); |
| 577 | } |
| 578 | } catch (SqlException ignoreMe) { |
| 579 | } |
| 580 | throw sqle; |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | protected void finalize() throws java.lang.Throwable { |
| 585 | super.finalize(); |
| 586 | } |
| 587 | |
| 588 | protected byte[] getCnnToken() { |
| 589 | return cnntkn_; |
| 590 | } |
| 591 | |
| 592 | protected short getSequenceNumber() { |
| 593 | return ++seqNo_; |
| 594 | } |
| 595 | |
| 596 | //--------------------------------flow methods-------------------------------- |
| 597 | |
| 598 | private void flowUSRIDPWDconnect(String password) throws SqlException { |
| 599 | flowServerAttributesAndKeyExchange(NetConfiguration.SECMEC_USRIDPWD, |
| 600 | null); // publicKey |
| 601 | |
| 602 | flowSecurityCheckAndAccessRdb(targetSecmec_, //securityMechanism |
| 603 | user_, |
| 604 | password, |
| 605 | null, //encryptedUserid |
| 606 | null); //encryptedPassword |
| 607 | } |
| 608 | |
| 609 | |
| 610 | private void flowUSRIDONLconnect() throws SqlException { |
| 611 | flowServerAttributesAndKeyExchange(NetConfiguration.SECMEC_USRIDONL, |
| 612 | null); //publicKey |
| 613 | |
| 614 | flowSecurityCheckAndAccessRdb(targetSecmec_, //securityMechanism |
| 615 | user_, |
| 616 | null, //password |
| 617 | null, //encryptedUserid |
| 618 | null); //encryptedPassword |
| 619 | } |
| 620 | |
| 621 | |
| 622 | private void flowUSRENCPWDconnect(String password) throws SqlException { |
| 623 | flowServerAttributes(); |
| 624 | |
| 625 | checkSecmgrForSecmecSupport(NetConfiguration.SECMEC_USRENCPWD); |
| 626 | initializePublicKeyForEncryption(); |
| 627 | flowKeyExchange(NetConfiguration.SECMEC_USRENCPWD, publicKey_); |
| 628 | |
| 629 | flowSecurityCheckAndAccessRdb(targetSecmec_, //securityMechanism |
| 630 | user_, |
| 631 | null, //password |
| 632 | null, //encryptedUserid |
| 633 | encryptedPasswordForUSRENCPWD(password)); |
| 634 | } |
| 635 | |
| 636 | |
| 637 | private void flowEUSRIDPWDconnect(String password) throws SqlException { |
| 638 | flowServerAttributes(); |
| 639 | |
| 640 | checkSecmgrForSecmecSupport(NetConfiguration.SECMEC_EUSRIDPWD); |
| 641 | initializePublicKeyForEncryption(); |
| 642 | flowKeyExchange(NetConfiguration.SECMEC_EUSRIDPWD, publicKey_); |
| 643 | |
| 644 | flowSecurityCheckAndAccessRdb(targetSecmec_, //securityMechanism |
| 645 | null, //user |
| 646 | null, //password |
| 647 | encryptedUseridForEUSRIDPWD(), |
| 648 | encryptedPasswordForEUSRIDPWD(password)); |
| 649 | } |
| 650 | |
| 651 | private void flowEUSRIDDTAconnect() throws SqlException { |
| 652 | flowServerAttributes(); |
| 653 | |
| 654 | checkSecmgrForSecmecSupport(NetConfiguration.SECMEC_EUSRIDPWD); |
| 655 | initializePublicKeyForEncryption(); |
| 656 | flowKeyExchange(NetConfiguration.SECMEC_EUSRIDDTA, publicKey_); |
| 657 | |
| 658 | |
| 659 | flowSecurityCheckAndAccessRdb(targetSecmec_, //securityMechanism |
| 660 | null, //user |
| 661 | null, //password |
| 662 | encryptedUseridForEUSRIDPWD(), |
| 663 | null);//encryptedPasswordForEUSRIDPWD (password), |
| 664 | } |
| 665 | |
| 666 | private void flowEUSRPWDDTAconnect(String password) throws SqlException { |
| 667 | flowServerAttributes(); |
| 668 | |
| 669 | checkSecmgrForSecmecSupport(NetConfiguration.SECMEC_EUSRPWDDTA); |
| 670 | initializePublicKeyForEncryption(); |
| 671 | flowKeyExchange(NetConfiguration.SECMEC_EUSRPWDDTA, publicKey_); |
| 672 | |
| 673 | |
| 674 | flowSecurityCheckAndAccessRdb(targetSecmec_, //securityMechanism |
| 675 | null, //user |
| 676 | null, //password |
| 677 | encryptedUseridForEUSRIDPWD(), |
| 678 | encryptedPasswordForEUSRIDPWD(password)); |
| 679 | } |
| 680 | |
| 681 | private void flowServerAttributes() throws SqlException { |
| 682 | agent_.beginWriteChainOutsideUOW(); |
| 683 | netAgent_.netConnectionRequest_.writeExchangeServerAttributes(extnam_, //externalName |
| 684 | targetAgent_, |
| 685 | netAgent_.targetSqlam_, |
| 686 | targetRdb_, |
| 687 | targetSecmgr_, |
| 688 | targetCmntcpip_, |
| 689 | targetCmnappc_, |
| 690 | targetXamgr_, |
| 691 | targetSyncptmgr_, |
| 692 | targetRsyncmgr_); |
| 693 | agent_.flowOutsideUOW(); |
| 694 | netAgent_.netConnectionReply_.readExchangeServerAttributes(this); |
| 695 | agent_.endReadChain(); |
| 696 | } |
| 697 | |
| 698 | private void flowKeyExchange(int securityMechanism, byte[] publicKey) throws SqlException { |
| 699 | agent_.beginWriteChainOutsideUOW(); |
| 700 | netAgent_.netConnectionRequest_.writeAccessSecurity(securityMechanism, |
| 701 | databaseName_, |
| 702 | publicKey); |
| 703 | agent_.flowOutsideUOW(); |
| 704 | netAgent_.netConnectionReply_.readAccessSecurity(this, securityMechanism); |
| 705 | agent_.endReadChain(); |
| 706 | } |
| 707 | |
| 708 | private void flowServerAttributesAndKeyExchange(int securityMechanism, |
| 709 | byte[] publicKey) throws SqlException { |
| 710 | agent_.beginWriteChainOutsideUOW(); |
| 711 | writeServerAttributesAndKeyExchange(securityMechanism, publicKey); |
| 712 | agent_.flowOutsideUOW(); |
| 713 | readServerAttributesAndKeyExchange(securityMechanism); |
| 714 | agent_.endReadChain(); |
| 715 | } |
| 716 | |
| 717 | private void flowSecurityCheckAndAccessRdb(int securityMechanism, |
| 718 | String user, |
| 719 | String password, |
| 720 | byte[] encryptedUserid, |
| 721 | byte[] encryptedPassword) throws SqlException { |
| 722 | agent_.beginWriteChainOutsideUOW(); |
| 723 | writeSecurityCheckAndAccessRdb(securityMechanism, |
| 724 | user, |
| 725 | password, |
| 726 | encryptedUserid, |
| 727 | encryptedPassword); |
| 728 | agent_.flowOutsideUOW(); |
| 729 | readSecurityCheckAndAccessRdb(); |
| 730 | agent_.endReadChain(); |
| 731 | } |
| 732 | |
| 733 | private void writeAllConnectCommandsChained(int securityMechanism, |
| 734 | String user, |
| 735 | String password) throws SqlException { |
| 736 | writeServerAttributesAndKeyExchange(securityMechanism, |
| 737 | null); // publicKey |
| 738 | writeSecurityCheckAndAccessRdb(securityMechanism, |
| 739 | user, |
| 740 | password, |
| 741 | null, //encryptedUserid |
| 742 | null); //encryptedPassword, |
| 743 | } |
| 744 | |
| 745 | private void readAllConnectCommandsChained(int securityMechanism) throws SqlException { |
| 746 | readServerAttributesAndKeyExchange(securityMechanism); |
| 747 | readSecurityCheckAndAccessRdb(); |
| 748 | } |
| 749 | |
| 750 | private void writeServerAttributesAndKeyExchange(int securityMechanism, |
| 751 | byte[] publicKey) throws SqlException { |
| 752 | netAgent_.netConnectionRequest_.writeExchangeServerAttributes(extnam_, //externalName |
| 753 | targetAgent_, |
| 754 | netAgent_.targetSqlam_, |
| 755 | targetRdb_, |
| 756 | targetSecmgr_, |
| 757 | targetCmntcpip_, |
| 758 | targetCmnappc_, |
| 759 | targetXamgr_, |
| 760 | targetSyncptmgr_, |
| 761 | targetRsyncmgr_); |
| 762 | netAgent_.netConnectionRequest_.writeAccessSecurity(securityMechanism, |
| 763 | databaseName_, |
| 764 | publicKey); |
| 765 | } |
| 766 | |
| 767 | private void readServerAttributesAndKeyExchange(int securityMechanism) throws SqlException { |
| 768 | netAgent_.netConnectionReply_.readExchangeServerAttributes(this); |
| 769 | netAgent_.netConnectionReply_.readAccessSecurity(this, securityMechanism); |
| 770 | } |
| 771 | |
| 772 | private void writeSecurityCheckAndAccessRdb(int securityMechanism, |
| 773 | String user, |
| 774 | String password, |
| 775 | byte[] encryptedUserid, |
| 776 | byte[] encryptedPassword) throws SqlException { |
| 777 | netAgent_.netConnectionRequest_.writeSecurityCheck(securityMechanism, |
| 778 | databaseName_, |
| 779 | user, |
| 780 | password, |
| 781 | encryptedUserid, |
| 782 | encryptedPassword); |
| 783 | netAgent_.netConnectionRequest_.writeAccessDatabase(databaseName_, |
| 784 | false, |
| 785 | crrtkn_, |
| 786 | prddta_, |
| 787 | netAgent_.typdef_); |
| 788 | } |
| 789 | |
| 790 | private void cacheConnectBytes(int beginOffset, int endOffset) { |
| 791 | int length = endOffset - beginOffset; |
| 792 | cachedConnectBytes_ = new byte[length]; |
| 793 | netAgent_.netConnectionRequest_.finalizePreviousChainedDss(false); |
| 794 | System.arraycopy(netAgent_.netConnectionRequest_.bytes_, |
| 795 | beginOffset, |
| 796 | cachedConnectBytes_, |
| 797 | 0, |
| 798 | length); |
| 799 | netAgent_.netConnectionRequest_.setDssLengthLocation(netAgent_.netConnectionRequest_.offset_); |
| 800 | } |
| 801 | |
| 802 | private void readSecurityCheckAndAccessRdb() throws SqlException { |
| 803 | netAgent_.netConnectionReply_.readSecurityCheck(this); |
| 804 | netAgent_.netConnectionReply_.readAccessDatabase(this); |
| 805 | } |
| 806 | |
| 807 | void writeDeferredReset() throws SqlException { |
| 808 | if (canUseCachedConnectBytes_ && cachedConnectBytes_ != null && |
| 809 | (securityMechanism_ == NetConfiguration.SECMEC_USRIDPWD || |
| 810 | securityMechanism_ == NetConfiguration.SECMEC_USRIDONL)) { |
| 811 | writeDeferredResetFromCache(); |
| 812 | wroteConnectFromCache_ = true; |
| 813 | } else { |
| 814 | int beginOffset = netAgent_.netConnectionRequest_.offset_; |
| 815 | int endOffset = 0; |
| 816 | // NetConfiguration.SECMEC_USRIDPWD |
| 817 | if (securityMechanism_ == NetConfiguration.SECMEC_USRIDPWD) { |
| 818 | writeAllConnectCommandsChained(NetConfiguration.SECMEC_USRIDPWD, |
| 819 | user_, |
| 820 | getDeferredResetPassword()); |
| 821 | endOffset = netAgent_.netConnectionRequest_.offset_; |
| 822 | cacheConnectBytes(beginOffset, endOffset); |
| 823 | } |
| 824 | // NetConfiguration.SECMEC_USRIDONL |
| 825 | else if (securityMechanism_ == NetConfiguration.SECMEC_USRIDONL) { |
| 826 | writeAllConnectCommandsChained(NetConfiguration.SECMEC_USRIDONL, |
| 827 | user_, |
| 828 | null); //password |
| 829 | endOffset = netAgent_.netConnectionRequest_.offset_; |
| 830 | cacheConnectBytes(beginOffset, endOffset); |
| 831 | } |
| 832 | // either NetConfiguration.SECMEC_USRENCPWD or NetConfiguration.SECMEC_EUSRIDPWD |
| 833 | else { |
| 834 | initializePublicKeyForEncryption(); |
| 835 | // Set the resetConnectionAtFirstSql_ to false to avoid going in an |
| 836 | // infinite loop, since all the flow methods call beginWriteChain which then |
| 837 | // calls writeDeferredResetConnection where the check for resetConnectionAtFirstSql_ |
| 838 | // is done. By setting the resetConnectionAtFirstSql_ to false will avoid calling the |
| 839 | // writeDeferredReset method again. |
| 840 | resetConnectionAtFirstSql_ = false; |
| 841 | flowServerAttributesAndKeyExchange(securityMechanism_, publicKey_); |
| 842 | agent_.beginWriteChainOutsideUOW(); |
| 843 | |
| 844 | // Reset the resetConnectionAtFirstSql_ to true since we are done |
| 845 | // with the flow method. |
| 846 | resetConnectionAtFirstSql_ = true; |
| 847 | // NetConfiguration.SECMEC_USRENCPWD |
| 848 | if (securityMechanism_ == NetConfiguration.SECMEC_USRENCPWD) { |
| 849 | writeSecurityCheckAndAccessRdb(NetConfiguration.SECMEC_USRENCPWD, |
| 850 | user_, |
| 851 | null, //password |
| 852 | null, //encryptedUserid |
| 853 | encryptedPasswordForUSRENCPWD(getDeferredResetPassword())); |
| 854 | } |
| 855 | // NetConfiguration.SECMEC_EUSRIDPWD |
| 856 | else { |
| 857 | writeSecurityCheckAndAccessRdb(NetConfiguration.SECMEC_EUSRIDPWD, |
| 858 | null, //user |
| 859 | null, //password |
| 860 | encryptedUseridForEUSRIDPWD(), |
| 861 | encryptedPasswordForEUSRIDPWD(getDeferredResetPassword())); |
| 862 | } |
| 863 | } |
| 864 | } |
| 865 | } |
| 866 | |
| 867 | void readDeferredReset() throws SqlException { |
| 868 | resetConnectionAtFirstSql_ = false; |
| 869 | if (wroteConnectFromCache_) { |
| 870 | netAgent_.netConnectionReply_.verifyDeferredReset(); |
| 871 | return; |
| 872 | } |
| 873 | // either NetConfiguration.SECMEC_USRIDPWD or NetConfiguration.SECMEC_USRIDONL |
| 874 | if (securityMechanism_ == NetConfiguration.SECMEC_USRIDPWD || |
| 875 | securityMechanism_ == NetConfiguration.SECMEC_USRIDONL) { |
| 876 | readAllConnectCommandsChained(securityMechanism_); |
| 877 | } |
| 878 | // either NetConfiguration.SECMEC_USRENCPWD or NetConfiguration.SECMEC_EUSRIDPWD |
| 879 | else { |
| 880 | // either NetConfiguration.SECMEC_USRENCPWD or NetConfiguration.SECMEC_EUSRIDPWD |
| 881 | readSecurityCheckAndAccessRdb(); |
| 882 | } |
| 883 | if (agent_.loggingEnabled()) { |
| 884 | agent_.logWriter_.traceConnectResetExit(this); |
| 885 | } |
| 886 | } |
| 887 | |
| 888 | //-------------------parse callback methods-------------------------------- |
| 889 | |
| 890 | void setServerAttributeData(String extnam, |
| 891 | String srvclsnm, |
| 892 | String srvnam, |
| 893 | String srvrlslv) { |
| 894 | targetExtnam_ = extnam; // any of these could be null |
| 895 | targetSrvclsnm_ = srvclsnm; // since then can be optionally returned from the |
| 896 | targetSrvnam_ = srvnam; // server |
| 897 | targetSrvrlslv_ = srvrlslv; |
| 898 | } |
| 899 | |
| 900 | // secmecList is always required and will not be null. |
| 901 | // secchkcd has an implied severity of error. |
| 902 | // it will be returned if an error is detected. |
| 903 | // if no errors and security mechanism requires a sectkn, then |
| 904 | void setAccessSecurityData(int secchkcd, |
| 905 | int desiredSecmec, |
| 906 | int[] secmecList, |
| 907 | boolean sectknReceived, |
| 908 | byte[] sectkn) throws DisconnectException { |
| 909 | // - if the secchkcd is not 0, then map to an exception. |
| 910 | if (secchkcd != CodePoint.SECCHKCD_00) { |
| 911 | // the implied severity code is error |
| 912 | netAgent_.setSvrcod(CodePoint.SVRCOD_ERROR); |
| 913 | agent_.accumulateReadException(mapSecchkcd(secchkcd)); |
| 914 | } else { |
| 915 | // - verify that the secmec parameter reflects the value sent |
| 916 | // in the ACCSEC command. |
| 917 | // should we check for null list |
| 918 | if ((secmecList.length == 1) && |
| 919 | (secmecList[0] == desiredSecmec)) { |
| 920 | // the security mechanism returned from the server matches |
| 921 | // the mechanism requested by the client. |
| 922 | targetSecmec_ = secmecList[0]; |
| 923 | |
| 924 | if ((targetSecmec_ == NetConfiguration.SECMEC_USRENCPWD) || |
| 925 | (targetSecmec_ == NetConfiguration.SECMEC_EUSRIDPWD) || |
| 926 | (targetSecmec_ == NetConfiguration.SECMEC_EUSRIDDTA) || |
| 927 | (targetSecmec_ == NetConfiguration.SECMEC_EUSRPWDDTA)) { |
| 928 | |
| 929 | // a security token is required for USRENCPWD, or EUSRIDPWD. |
| 930 | if (!sectknReceived) { |
| 931 | agent_.accumulateChainBreakingReadExceptionAndThrow( |
| 932 | new DisconnectException(agent_, |
| 933 | new ClientMessageId(SQLState.NET_SECTKN_NOT_RETURNED))); |
| 934 | } else { |
| 935 | targetPublicKey_ = sectkn; |
| 936 | if (encryptionManager_ != null) { |
| 937 | encryptionManager_.resetSecurityKeys(); |
| 938 | } |
| 939 | } |
| 940 | } |
| 941 | } else { |
| 942 | // accumulate an SqlException and don't disconnect yet |
| 943 | // if a SECCHK was chained after this it would receive a secchk code |
| 944 | // indicating the security mechanism wasn't supported and that would be a |
| 945 | // chain breaking exception. if no SECCHK is chained this exception |
| 946 | // will be surfaced by endReadChain |
| 947 | // agent_.accumulateChainBreakingReadExceptionAndThrow ( |
| 948 | // new DisconnectException (agent_,"secmec not supported ","0000", -999)); |
| 949 | agent_.accumulateReadException(new SqlException(agent_.logWriter_, |
| 950 | new ClientMessageId(SQLState.NET_SECKTKN_NOT_RETURNED))); |
| 951 | } |
| 952 | } |
| 953 | } |
| 954 | |
| 955 | void securityCheckComplete(int svrcod, int secchkcd) { |
| 956 | netAgent_.setSvrcod(svrcod); |
| 957 | if (secchkcd == CodePoint.SECCHKCD_00) { |
| 958 | return; |
| 959 | } |
| 960 | agent_.accumulateReadException(mapSecchkcd(secchkcd)); |
| 961 | } |
| 962 | |
| 963 | void rdbAccessed(int svrcod, |
| 964 | String prdid, |
| 965 | boolean crrtknReceived, |
| 966 | byte[] crrtkn) { |
| 967 | if (crrtknReceived) { |
| 968 | crrtkn_ = crrtkn; |
| 969 | } |
| 970 | |
| 971 | netAgent_.setSvrcod(svrcod); |
| 972 | productID_ = prdid; |
| 973 | } |
| 974 | |
| 975 | |
| 976 | //-------------------Abstract object factories-------------------------------- |
| 977 | |
| 978 | protected org.apache.derby.client.am.Agent newAgent_(org.apache.derby.client.am.LogWriter logWriter, int loginTimeout, String serverName, int portNumber) |
| 979 | throws SqlException { |
| 980 | return new NetAgent(this, |
| 981 | (NetLogWriter) logWriter, |
| 982 | loginTimeout, |
| 983 | serverName, |
| 984 | portNumber); |
| 985 | } |
| 986 | |
| 987 | |
| 988 | protected Statement newStatement_(int type, int concurrency, int holdability) throws SqlException { |
| 989 | return new NetStatement(netAgent_, this, type, concurrency, holdability).statement_; |
| 990 | } |
| 991 | |
| 992 | protected void resetStatement_(Statement statement, int type, int concurrency, int holdability) throws SqlException { |
| 993 | ((NetStatement) statement.materialStatement_).resetNetStatement(netAgent_, this, type, concurrency, holdability); |
| 994 | } |
| 995 | |
| 996 | protected PreparedStatement newPositionedUpdatePreparedStatement_(String sql, |
| 997 | org.apache.derby.client.am.Section section) throws SqlException { |
| 998 | //passing the pooledConnection_ object which will be used to raise |
| 999 | //StatementEvents to the PooledConnection |
| 1000 | return new NetPreparedStatement(netAgent_, this, sql, section,pooledConnection_).preparedStatement_; |
| 1001 | } |
| 1002 | |
| 1003 | protected PreparedStatement newPreparedStatement_(String sql, int type, int concurrency, int holdability, int autoGeneratedKeys, String[] columnNames) throws SqlException { |
| 1004 | |
| 1005 | //passing the pooledConnection_ object which will be used to raise |
| 1006 | //StatementEvents to the PooledConnection |
| 1007 | return new NetPreparedStatement(netAgent_, this, sql, type, concurrency, holdability, autoGeneratedKeys, columnNames,pooledConnection_).preparedStatement_; |
| 1008 | } |
| 1009 | |
| 1010 | protected void resetPreparedStatement_(PreparedStatement ps, |
| 1011 | String sql, |
| 1012 | int resultSetType, |
| 1013 | int resultSetConcurrency, |
| 1014 | int resultSetHoldability, |
| 1015 | int autoGeneratedKeys, |
| 1016 | String[] columnNames) throws SqlException { |
| 1017 | ((NetPreparedStatement) ps.materialPreparedStatement_).resetNetPreparedStatement(netAgent_, this, sql, resultSetType, resultSetConcurrency, resultSetHoldability, autoGeneratedKeys, columnNames); |
| 1018 | } |
| 1019 | |
| 1020 | |
| 1021 | protected CallableStatement newCallableStatement_(String sql, int type, int concurrency, int holdability) throws SqlException { |
| 1022 | //passing the pooledConnection_ object which will be used to raise |
| 1023 | //StatementEvents to the PooledConnection |
| 1024 | return new NetCallableStatement(netAgent_, this, sql, type, concurrency, holdability,pooledConnection_).callableStatement_; |
| 1025 | } |
| 1026 | |
| 1027 | protected void resetCallableStatement_(CallableStatement cs, |
| 1028 | String sql, |
| 1029 | int resultSetType, |
| 1030 | int resultSetConcurrency, |
| 1031 | int resultSetHoldability) throws SqlException { |
| 1032 | ((NetCallableStatement) cs.materialCallableStatement_).resetNetCallableStatement(netAgent_, this, sql, resultSetType, resultSetConcurrency, resultSetHoldability); |
| 1033 | } |
| 1034 | |
| 1035 | |
| 1036 | protected DatabaseMetaData newDatabaseMetaData_() { |
| 1037 | return ClientDriver.getFactory().newNetDatabaseMetaData(netAgent_, this); |
| 1038 | } |
| 1039 | |
| 1040 | //-------------------private helper methods-------------------------------- |
| 1041 | |
| 1042 | private void checkDatabaseName() throws SqlException { |
| 1043 | // netAgent_.logWriter may not be initialized yet |
| 1044 | if (databaseName_ == null) { |
| 1045 | throw new SqlException(agent_.logWriter_, |
| 1046 | new ClientMessageId(SQLState.CONNECT_REQUIRED_PROPERTY_NOT_SET), |
| 1047 | "databaseName"); |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | private void checkUserLength(String user) throws SqlException { |
| 1052 | int usridLength = user.length(); |
| 1053 | if ((usridLength == 0) || (usridLength > NetConfiguration.USRID_MAXSIZE)) { |
| 1054 | throw new SqlException(netAgent_.logWriter_, |
| 1055 | new ClientMessageId(SQLState.CONNECT_USERID_LENGTH_OUT_OF_RANGE), |
| 1056 | new Integer(usridLength), |
| 1057 | new Integer(NetConfiguration.USRID_MAXSIZE)); |
| 1058 | } |
| 1059 | } |
| 1060 | |
| 1061 | private void checkPasswordLength(String password) throws SqlException { |
| 1062 | int passwordLength = password.length(); |
| 1063 | if ((passwordLength == 0) || (passwordLength > NetConfiguration.PASSWORD_MAXSIZE)) { |
| 1064 | throw new SqlException(netAgent_.logWriter_, |
| 1065 | new ClientMessageId(SQLState.CONNECT_PASSWORD_LENGTH_OUT_OF_RANGE), |
| 1066 | new Integer(passwordLength), |
| 1067 | new Integer(NetConfiguration.PASSWORD_MAXSIZE)); |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | private void checkUser(String user) throws SqlException { |
| 1072 | if (user == null) { |
| 1073 | throw new SqlException(netAgent_.logWriter_, |
| 1074 | new ClientMessageId(SQLState.CONNECT_USERID_ISNULL)); |
| 1075 | } |
| 1076 | checkUserLength(user); |
| 1077 | } |
| 1078 | |
| 1079 | private void checkUserPassword(String user, String password) throws SqlException { |
| 1080 | checkUser(user); |
| 1081 | if (password == null) { |
| 1082 | throw new SqlException(netAgent_.logWriter_, |
| 1083 | new ClientMessageId(SQLState.CONNECT_PASSWORD_ISNULL)); |
| 1084 | } |
| 1085 | checkPasswordLength(password); |
| 1086 | } |
| 1087 | |
| 1088 | |
| 1089 | // Determine if a security mechanism is supported by |
| 1090 | // the security manager used for the connection. |
| 1091 | // An exception is thrown if the security mechanism is not supported |
| 1092 | // by the secmgr. |
| 1093 | private void checkSecmgrForSecmecSupport(int securityMechanism) throws SqlException { |
| 1094 | boolean secmecSupported = false; |
| 1095 | int[] supportedSecmecs = null; |
| 1096 | |
| 1097 | // Point to a list (array) of supported security mechanisms. |
| 1098 | supportedSecmecs = NetConfiguration.SECMGR_SECMECS; |
| 1099 | |
| 1100 | // check to see if the security mechanism is on the supported list. |
| 1101 | for (int i = 0; (i < supportedSecmecs.length) && (!secmecSupported); i++) { |
| 1102 | if (supportedSecmecs[i] == securityMechanism) { |
| 1103 | secmecSupported = true; |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | // throw an exception if not supported (not on list). |
| 1108 | if (!secmecSupported) { |
| 1109 | throw new SqlException(agent_.logWriter_, |
| 1110 | new ClientMessageId(SQLState.SECMECH_NOT_SUPPORTED), |
| 1111 | new Integer(securityMechanism)); |
| 1112 | } |
| 1113 | } |
| 1114 | |
| 1115 | // If secchkcd is not 0, map to SqlException |
| 1116 | // according to the secchkcd received. |
| 1117 | private SqlException mapSecchkcd(int secchkcd) { |
| 1118 | if (secchkcd == CodePoint.SECCHKCD_00) { |
| 1119 | return null; |
| 1120 | } |
| 1121 | |
| 1122 | // the net driver will not support new password at this time. |
| 1123 | // Here is the message for -30082 (STATE "08001"): |
| 1124 | // Attempt to establish connection failed with security |
| 1125 | // reason {0} {1} + reason-code + reason-string. |
| 1126 | switch (secchkcd) { |
| 1127 | case CodePoint.SECCHKCD_01: // ERROR SVRCOD |
| 1128 | return new SqlException(agent_.logWriter_, |
| 1129 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1130 | msgutil.getTextMessage(MessageId.CONN_SECMECH_NOT_SUPPORTED)); |
| 1131 | case CodePoint.SECCHKCD_10: // ERROR SVRCOD |
| 1132 | return new SqlException(agent_.logWriter_, |
| 1133 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1134 | msgutil.getTextMessage(MessageId.CONN_PASSWORD_MISSING)); |
| 1135 | case CodePoint.SECCHKCD_12: // ERROR SVRCOD |
| 1136 | return new SqlException(agent_.logWriter_, |
| 1137 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1138 | msgutil.getTextMessage(MessageId.CONN_USERID_MISSING)); |
| 1139 | case CodePoint.SECCHKCD_13: // ERROR SVRCOD |
| 1140 | return new SqlException(agent_.logWriter_, |
| 1141 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1142 | msgutil.getTextMessage(MessageId.CONN_USERID_OR_PASSWORD_INVALID)); |
| 1143 | case CodePoint.SECCHKCD_14: // ERROR SVRCOD |
| 1144 | return new SqlException(agent_.logWriter_, |
| 1145 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1146 | msgutil.getTextMessage(MessageId.CONN_USERID_REVOKED)); |
| 1147 | case CodePoint.SECCHKCD_15: // ERROR SVRCOD |
| 1148 | return new SqlException(agent_.logWriter_, |
| 1149 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1150 | msgutil.getTextMessage(MessageId.CONN_NEW_PASSWORD_INVALID)); |
| 1151 | case CodePoint.SECCHKCD_0A: // ERROR SVRCOD |
| 1152 | return new SqlException(agent_.logWriter_, |
| 1153 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1154 | msgutil.getTextMessage(MessageId.CONN_SECSVC_NONRETRYABLE_ERR)); |
| 1155 | case CodePoint.SECCHKCD_0B: // ERROR SVRCOD |
| 1156 | return new SqlException(agent_.logWriter_, |
| 1157 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1158 | msgutil.getTextMessage(MessageId.CONN_SECTKN_MISSING_OR_INVALID)); |
| 1159 | case CodePoint.SECCHKCD_0E: // ERROR SVRCOD |
| 1160 | return new SqlException(agent_.logWriter_, |
| 1161 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1162 | msgutil.getTextMessage(MessageId.CONN_PASSWORD_EXPIRED)); |
| 1163 | case CodePoint.SECCHKCD_0F: // ERROR SVRCOD |
| 1164 | return new SqlException(agent_.logWriter_, |
| 1165 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1166 | msgutil.getTextMessage(MessageId.CONN_USERID_OR_PASSWORD_INVALID)); |
| 1167 | default: // ERROR SVRCOD |
| 1168 | return new SqlException(agent_.logWriter_, |
| 1169 | new ClientMessageId(SQLState.NET_CONNECT_AUTH_FAILED), |
| 1170 | msgutil.getTextMessage(MessageId.CONN_NOT_SPECIFIED)); |
| 1171 | } |
| 1172 | } |
| 1173 | |
| 1174 | // Construct the correlation token. |
| 1175 | // The crrtkn has the following format. |
| 1176 | // |
| 1177 | // <Almost IP address>.<local port number><current time in millis> |
| 1178 | // | | | || | |
| 1179 | // +----+--------------+ +-----+---------++---------+--------+ |
| 1180 | // | | | |
| 1181 | // 8 bytes 4 bytes 6 bytes |
| 1182 | // Total lengtho of 19 bytes. |
| 1183 | // |
| 1184 | // 1 char for each 1/2 byte in the IP address. |
| 1185 | // If the first character of the <IP address> or <port number> |
| 1186 | // starts with '0' thru '9', it will be mapped to 'G' thru 'P'. |
| 1187 | // Reason for mapping the IP address is in order to use the crrtkn as the LUWID when using SNA in a hop site. |
| 1188 | protected void constructCrrtkn() throws SqlException { |
| 1189 | byte[] localAddressBytes = null; |
| 1190 | long time = 0; |
| 1191 | int num = 0; |
| 1192 | int halfByte = 0; |
| 1193 | int i = 0; |
| 1194 | int j = 0; |
| 1195 | |
| 1196 | // allocate the crrtkn array. |
| 1197 | if (crrtkn_ == null) { |
| 1198 | crrtkn_ = new byte[19]; |
| 1199 | } else { |
| 1200 | java.util.Arrays.fill(crrtkn_, (byte) 0); |
| 1201 | } |
| 1202 | |
| 1203 | localAddressBytes = netAgent_.socket_.getLocalAddress().getAddress(); |
| 1204 | |
| 1205 | // IP addresses are returned in a 4 byte array. |
| 1206 | // Obtain the character representation of each half byte. |
| 1207 | for (i = 0, j = 0; i < 4; i++, j += 2) { |
| 1208 | |
| 1209 | // since a byte is signed in java, convert any negative |
| 1210 | // numbers to positive before shifting. |
| 1211 | num = localAddressBytes[i] < 0 ? localAddressBytes[i] + 256 : localAddressBytes[i]; |
| 1212 | halfByte = (num >> 4) & 0x0f; |
| 1213 | |
| 1214 | // map 0 to G |
| 1215 | // The first digit of the IP address is is replaced by |
| 1216 | // the characters 'G' thro 'P'(in order to use the crrtkn as the LUWID when using |
| 1217 | // SNA in a hop site). For example, 0 is mapped to G, 1 is mapped H,etc. |
| 1218 | if (i == 0) { |
| 1219 | crrtkn_[j] = netAgent_.sourceCcsidManager_.numToSnaRequiredCrrtknChar_[halfByte]; |
| 1220 | } else { |
| 1221 | crrtkn_[j] = netAgent_.sourceCcsidManager_.numToCharRepresentation_[halfByte]; |
| 1222 | } |
| 1223 | |
| 1224 | halfByte = (num) & 0x0f; |
| 1225 | crrtkn_[j + 1] = netAgent_.sourceCcsidManager_.numToCharRepresentation_[halfByte]; |
| 1226 | } |
| 1227 | |
| 1228 | // fill the '.' in between the IP address and the port number |
| 1229 | crrtkn_[8] = netAgent_.sourceCcsidManager_.dot_; |
| 1230 | |
| 1231 | // Port numbers have values which fit in 2 unsigned bytes. |
| 1232 | // Java returns port numbers in an int so the value is not negative. |
| 1233 | // Get the character representation by converting the |
| 1234 | // 4 low order half bytes to the character representation. |
| 1235 | num = netAgent_.socket_.getLocalPort(); |
| 1236 | |
| 1237 | halfByte = (num >> 12) & 0x0f; |
| 1238 | crrtkn_[9] = netAgent_.sourceCcsidManager_.numToSnaRequiredCrrtknChar_[halfByte]; |
| 1239 | halfByte = (num >> 8) & 0x0f; |
| 1240 | crrtkn_[10] = netAgent_.sourceCcsidManager_.numToCharRepresentation_[halfByte]; |
| 1241 | halfByte = (num >> 4) & 0x0f; |
| 1242 | crrtkn_[11] = netAgent_.sourceCcsidManager_.numToCharRepresentation_[halfByte]; |
| 1243 | halfByte = (num) & 0x0f; |
| 1244 | crrtkn_[12] = netAgent_.sourceCcsidManager_.numToCharRepresentation_[halfByte]; |
| 1245 | |
| 1246 | // The final part of CRRTKN is a 6 byte binary number that makes the |
| 1247 | // crrtkn unique, which is usually the time stamp/process id. |
| 1248 | // If the new time stamp is the |
| 1249 | // same as one of the already created ones, then recreate the time stamp. |
| 1250 | time = System.currentTimeMillis(); |
| 1251 | |
| 1252 | for (i = 0; i < 6; i++) { |
| 1253 | // store 6 bytes of 8 byte time into crrtkn |
| 1254 | crrtkn_[i + 13] = (byte) (time >>> (40 - (i * 8))); |
| 1255 | } |
| 1256 | } |
| 1257 | |
| 1258 | |
| 1259 | private void constructExtnam() throws SqlException { |
| 1260 | extnam_ = "derbydnc" + java.lang.Thread.currentThread().getName(); |
| 1261 | } |
| 1262 | |
| 1263 | private void constructPrddta() throws SqlException { |
| 1264 | int prddtaLen = 1; |
| 1265 | |
| 1266 | if (prddta_ == null) { |
| 1267 | prddta_ = new byte[NetConfiguration.PRDDTA_MAXSIZE]; |
| 1268 | } else { |
| 1269 | java.util.Arrays.fill(prddta_, (byte) 0); |
| 1270 | } |
| 1271 | |
| 1272 | for (int i = 0; i < NetConfiguration.PRDDTA_ACCT_SUFFIX_LEN_BYTE; i++) { |
| 1273 | prddta_[i] = netAgent_.sourceCcsidManager_.space_; |
| 1274 | } |
| 1275 | |
| 1276 | prddtaLen = netAgent_.sourceCcsidManager_.convertFromUCS2(NetConfiguration.PRDID, |
| 1277 | prddta_, |
| 1278 | prddtaLen, |
| 1279 | netAgent_); |
| 1280 | |
| 1281 | prddtaLen = netAgent_.sourceCcsidManager_.convertFromUCS2(NetConfiguration.PRDDTA_PLATFORM_ID, |
| 1282 | prddta_, |
| 1283 | prddtaLen, |
| 1284 | netAgent_); |
| 1285 | |
| 1286 | int extnamTruncateLength = Utils.min(extnam_.length(), NetConfiguration.PRDDTA_APPL_ID_FIXED_LEN); |
| 1287 | netAgent_.sourceCcsidManager_.convertFromUCS2(extnam_.substring(0, extnamTruncateLength), |
| 1288 | prddta_, |
| 1289 | prddtaLen, |
| 1290 | netAgent_); |
| 1291 | prddtaLen += NetConfiguration.PRDDTA_APPL_ID_FIXED_LEN; |
| 1292 | |
| 1293 | if (user_ != null) { |
| 1294 | int userTruncateLength = Utils.min(user_.length(), NetConfiguration.PRDDTA_USER_ID_FIXED_LEN); |
| 1295 | netAgent_.sourceCcsidManager_.convertFromUCS2(user_.substring(0, userTruncateLength), |
| 1296 | prddta_, |
| 1297 | prddtaLen, |
| 1298 | netAgent_); |
| 1299 | } |
| 1300 | |
| 1301 | prddtaLen += NetConfiguration.PRDDTA_USER_ID_FIXED_LEN; |
| 1302 | |
| 1303 | prddta_[NetConfiguration.PRDDTA_ACCT_SUFFIX_LEN_BYTE] = 0; |
| 1304 | prddtaLen++; |
| 1305 | // the length byte value does not include itself. |
| 1306 | prddta_[NetConfiguration.PRDDTA_LEN_BYTE] = (byte) (prddtaLen - 1); |
| 1307 | } |
| 1308 | |
| 1309 | private void initializePublicKeyForEncryption() throws SqlException { |
| 1310 | if (encryptionManager_ == null) { |
| 1311 | encryptionManager_ = new org.apache.derby.client.am.EncryptionManager(agent_); |
| 1312 | } |
| 1313 | publicKey_ = encryptionManager_.obtainPublicKey(); |
| 1314 | } |
| 1315 | |
| 1316 | |
| 1317 | private byte[] encryptedPasswordForUSRENCPWD(String password) throws SqlException { |
| 1318 | return encryptionManager_.encryptData(netAgent_.sourceCcsidManager_.convertFromUCS2(password, netAgent_), |
| 1319 | NetConfiguration.SECMEC_USRENCPWD, |
| 1320 | netAgent_.sourceCcsidManager_.convertFromUCS2(user_, netAgent_), |
| 1321 | targetPublicKey_); |
| 1322 | } |
| 1323 | |
| 1324 | private byte[] encryptedUseridForEUSRIDPWD() throws SqlException { |
| 1325 | return encryptionManager_.encryptData(netAgent_.sourceCcsidManager_.convertFromUCS2(user_, netAgent_), |
| 1326 | NetConfiguration.SECMEC_EUSRIDPWD, |
| 1327 | targetPublicKey_, |
| 1328 | targetPublicKey_); |
| 1329 | } |
| 1330 | |
| 1331 | private byte[] encryptedPasswordForEUSRIDPWD(String password) throws SqlException { |
| 1332 | return encryptionManager_.encryptData(netAgent_.sourceCcsidManager_.convertFromUCS2(password, netAgent_), |
| 1333 | NetConfiguration.SECMEC_EUSRIDPWD, |
| 1334 | targetPublicKey_, |
| 1335 | targetPublicKey_); |
| 1336 | } |
| 1337 | |
| 1338 | // Methods to get the manager levels for Regression harness only. |
| 1339 | public int getSQLAM() { |
| 1340 | return netAgent_.targetSqlam_; |
| 1341 | } |
| 1342 | |
| 1343 | public int getAGENT() { |
| 1344 | return targetAgent_; |
| 1345 | } |
| 1346 | |
| 1347 | public int getCMNTCPIP() { |
| 1348 | return targetCmntcpip_; |
| 1349 | } |
| 1350 | |
| 1351 | public int getRDB() { |
| 1352 | return targetRdb_; |
| 1353 | } |
| 1354 | |
| 1355 | public int getSECMGR() { |
| 1356 | return targetSecmgr_; |
| 1357 | } |
| 1358 | |
| 1359 | public int getXAMGR() { |
| 1360 | return targetXamgr_; |
| 1361 | } |
| 1362 | |
| 1363 | public int getSYNCPTMGR() { |
| 1364 | return targetSyncptmgr_; |
| 1365 | } |
| 1366 | |
| 1367 | public int getRSYNCMGR() { |
| 1368 | return targetRsyncmgr_; |
| 1369 | } |
| 1370 | |
| 1371 | |
| 1372 | private char[] flipBits(char[] array) { |
| 1373 | for (int i = 0; i < array.length; i++) { |
| 1374 | array[i] ^= 0xff; |
| 1375 | } |
| 1376 | return array; |
| 1377 | } |
| 1378 | |
| 1379 | private void writeDeferredResetFromCache() { |
| 1380 | int length = cachedConnectBytes_.length; |
| 1381 | System.arraycopy(cachedConnectBytes_, |
| 1382 | 0, |
| 1383 | netAgent_.netConnectionRequest_.bytes_, |
| 1384 | netAgent_.netConnectionRequest_.offset_, |
| 1385 | length); |
| 1386 | netAgent_.netConnectionRequest_.offset_ += length; |
| 1387 | netAgent_.netConnectionRequest_.setDssLengthLocation(netAgent_.netConnectionRequest_.offset_); |
| 1388 | netAgent_.netConnectionRequest_.setCorrelationID(4); |
| 1389 | } |
| 1390 | |
| 1391 | |
| 1392 | public void writeCommitSubstitute_() throws SqlException { |
| 1393 | netAgent_.connectionRequest_.writeCommitSubstitute(this); |
| 1394 | } |
| 1395 | |
| 1396 | public void readCommitSubstitute_() throws SqlException { |
| 1397 | netAgent_.connectionReply_.readCommitSubstitute(this); |
| 1398 | } |
| 1399 | |
| 1400 | public void writeLocalXAStart_() throws SqlException { |
| 1401 | netAgent_.connectionRequest_.writeLocalXAStart(this); |
| 1402 | } |
| 1403 | |
| 1404 | public void readLocalXAStart_() throws SqlException { |
| 1405 | netAgent_.connectionReply_.readLocalXAStart(this); |
| 1406 | } |
| 1407 | |
| 1408 | public void writeLocalXACommit_() throws SqlException { |
| 1409 | netAgent_.connectionRequest_.writeLocalXACommit(this); |
| 1410 | } |
| 1411 | |
| 1412 | public void readLocalXACommit_() throws SqlException { |
| 1413 | netAgent_.connectionReply_.readLocalXACommit(this); |
| 1414 | } |
| 1415 | |
| 1416 | public void writeLocalXARollback_() throws SqlException { |
| 1417 | netAgent_.connectionRequest_.writeLocalXARollback(this); |
| 1418 | } |
| 1419 | |
| 1420 | public void readLocalXARollback_() throws SqlException { |
| 1421 | netAgent_.connectionReply_.readLocalXARollback(this); |
| 1422 | } |
| 1423 | |
| 1424 | public void writeLocalCommit_() throws SqlException { |
| 1425 | netAgent_.connectionRequest_.writeLocalCommit(this); |
| 1426 | } |
| 1427 | |
| 1428 | public void readLocalCommit_() throws SqlException { |
| 1429 | netAgent_.connectionReply_.readLocalCommit(this); |
| 1430 | } |
| 1431 | |
| 1432 | public void writeLocalRollback_() throws SqlException { |
| 1433 | netAgent_.connectionRequest_.writeLocalRollback(this); |
| 1434 | } |
| 1435 | |
| 1436 | public void readLocalRollback_() throws SqlException { |
| 1437 | netAgent_.connectionReply_.readLocalRollback(this); |
| 1438 | } |
| 1439 | |
| 1440 | |
| 1441 | protected void markClosed_() { |
| 1442 | } |
| 1443 | |
| 1444 | protected boolean isGlobalPending_() { |
| 1445 | return false; |
| 1446 | } |
| 1447 | |
| 1448 | protected boolean doCloseStatementsOnClose_() { |
| 1449 | return true; |
| 1450 | } |
| 1451 | |
| 1452 | protected boolean allowCloseInUOW_() { |
| 1453 | return false; |
| 1454 | } |
| 1455 | |
| 1456 | // Driver-specific determination if local COMMIT/ROLLBACK is allowed; |
| 1457 | // Allow local COMMIT/ROLLBACK only if we are not in an XA transaction |
| 1458 | protected boolean allowLocalCommitRollback_() throws org.apache.derby.client.am.SqlException { |
| 1459 | |
| 1460 | if (getXAState() == XA_T0_NOT_ASSOCIATED) { |
| 1461 | return true; |
| 1462 | } |
| 1463 | return false; |
| 1464 | } |
| 1465 | |
| 1466 | public void setInputStream(java.io.InputStream inputStream) { |
| 1467 | netAgent_.setInputStream(inputStream); |
| 1468 | } |
| 1469 | |
| 1470 | public void setOutputStream(java.io.OutputStream outputStream) { |
| 1471 | netAgent_.setOutputStream(outputStream); |
| 1472 | } |
| 1473 | |
| 1474 | public java.io.InputStream getInputStream() { |
| 1475 | return netAgent_.getInputStream(); |
| 1476 | } |
| 1477 | |
| 1478 | public java.io.OutputStream getOutputStream() { |
| 1479 | return netAgent_.getOutputStream(); |
| 1480 | } |
| 1481 | |
| 1482 | |
| 1483 | public void writeTransactionStart(Statement statement) throws SqlException { |
| 1484 | } |
| 1485 | |
| 1486 | public void readTransactionStart() throws SqlException { |
| 1487 | super.readTransactionStart(); |
| 1488 | } |
| 1489 | |
| 1490 | public void setIndoubtTransactions(java.util.Hashtable indoubtTransactions) { |
| 1491 | if (isXAConnection_) { |
| 1492 | if (indoubtTransactions_ != null) { |
| 1493 | indoubtTransactions_.clear(); |
| 1494 | } |
| 1495 | indoubtTransactions_ = indoubtTransactions; |
| 1496 | } |
| 1497 | } |
| 1498 | |
| 1499 | protected void setReadOnlyTransactionFlag(boolean flag) { |
| 1500 | readOnlyTransaction_ = flag; |
| 1501 | } |
| 1502 | |
| 1503 | public org.apache.derby.client.am.SectionManager newSectionManager |
| 1504 | (String collection, |
| 1505 | org.apache.derby.client.am.Agent agent, |
| 1506 | String databaseName) { |
| 1507 | return new org.apache.derby.client.am.SectionManager(collection, agent, databaseName); |
| 1508 | } |
| 1509 | |
| 1510 | protected int getSocketAndInputOutputStreams(String server, int port) { |
| 1511 | try { |
| 1512 | netAgent_.socket_ = (java.net.Socket) java.security.AccessController.doPrivileged(new OpenSocketAction(server, port)); |
| 1513 | } catch (java.security.PrivilegedActionException e) { |
| 1514 | Exception openSocketException = e.getException(); |
| 1515 | if (netAgent_.loggingEnabled()) { |
| 1516 | netAgent_.logWriter_.tracepoint("[net]", 101, "Client Re-route: " + openSocketException.getClass().getName() + " : " + openSocketException.getMessage()); |
| 1517 | } |
| 1518 | return -1; |
| 1519 | } |
| 1520 | |
| 1521 | try { |
| 1522 | netAgent_.rawSocketOutputStream_ = netAgent_.socket_.getOutputStream(); |
| 1523 | netAgent_.rawSocketInputStream_ = netAgent_.socket_.getInputStream(); |
| 1524 | } catch (java.io.IOException e) { |
| 1525 | if (netAgent_.loggingEnabled()) { |
| 1526 | netAgent_.logWriter_.tracepoint("[net]", 103, "Client Re-route: java.io.IOException " + e.getMessage()); |
| 1527 | } |
| 1528 | try { |
| 1529 | netAgent_.socket_.close(); |
| 1530 | } catch (java.io.IOException doNothing) { |
| 1531 | } |
| 1532 | return -1; |
| 1533 | } |
| 1534 | return 0; |
| 1535 | } |
| 1536 | |
| 1537 | protected int checkAlternateServerHasEqualOrHigherProductLevel(ProductLevel orgLvl, int orgServerType) { |
| 1538 | if (orgLvl == null && orgServerType == 0) { |
| 1539 | return 0; |
| 1540 | } |
| 1541 | ProductLevel alternateServerProductLvl = |
| 1542 | netAgent_.netConnection_.databaseMetaData_.productLevel_; |
| 1543 | boolean alternateServerIsEqualOrHigherToOriginalServer = |
| 1544 | (alternateServerProductLvl.greaterThanOrEqualTo |
| 1545 | (orgLvl.versionLevel_, |
| 1546 | orgLvl.releaseLevel_, |
| 1547 | orgLvl.modificationLevel_)) ? true : false; |
| 1548 | // write an entry to the trace |
| 1549 | if (!alternateServerIsEqualOrHigherToOriginalServer && |
| 1550 | netAgent_.loggingEnabled()) { |
| 1551 | netAgent_.logWriter_.tracepoint("[net]", |
| 1552 | 99, |
| 1553 | "Client Re-route failed because the alternate server is on a lower product level than the origianl server."); |
| 1554 | } |
| 1555 | return (alternateServerIsEqualOrHigherToOriginalServer) ? 0 : -1; |
| 1556 | } |
| 1557 | |
| 1558 | public boolean willAutoCommitGenerateFlow() { |
| 1559 | // this logic must be in sync with writeCommit() logic |
| 1560 | if (!autoCommit_) { |
| 1561 | return false; |
| 1562 | } |
| 1563 | if (!isXAConnection_) { |
| 1564 | return true; |
| 1565 | } |
| 1566 | boolean doCommit = false; |
| 1567 | int xaState = getXAState(); |
| 1568 | |
| 1569 | |
| 1570 | if (xaState == XA_T0_NOT_ASSOCIATED) { |
| 1571 | doCommit = true; |
| 1572 | } |
| 1573 | |
| 1574 | return doCommit; |
| 1575 | } |
| 1576 | |
| 1577 | public int getSecurityMechanism() { |
| 1578 | return securityMechanism_; |
| 1579 | } |
| 1580 | |
| 1581 | public EncryptionManager getEncryptionManager() { |
| 1582 | return encryptionManager_; |
| 1583 | } |
| 1584 | |
| 1585 | public byte[] getTargetPublicKey() { |
| 1586 | return targetPublicKey_; |
| 1587 | } |
| 1588 | |
| 1589 | public String getProductID() { |
| 1590 | return targetSrvclsnm_; |
| 1591 | } |
| 1592 | |
| 1593 | public void doResetNow() throws SqlException { |
| 1594 | if (!resetConnectionAtFirstSql_) { |
| 1595 | return; // reset not needed |
| 1596 | } |
| 1597 | agent_.beginWriteChainOutsideUOW(); |
| 1598 | agent_.flowOutsideUOW(); |
| 1599 | agent_.endReadChain(); |
| 1600 | } |
| 1601 | |
| 1602 | /** |
| 1603 | * @return Returns the connectionNull. |
| 1604 | */ |
| 1605 | public boolean isConnectionNull() { |
| 1606 | return connectionNull; |
| 1607 | } |
| 1608 | /** |
| 1609 | * @param connectionNull The connectionNull to set. |
| 1610 | */ |
| 1611 | public void setConnectionNull(boolean connectionNull) { |
| 1612 | this.connectionNull = connectionNull; |
| 1613 | } |
| 1614 | |
| 1615 | /** |
| 1616 | * Check whether the server has full support for the QRYCLSIMP |
| 1617 | * parameter in OPNQRY. |
| 1618 | * |
| 1619 | * @return true if QRYCLSIMP is fully supported |
| 1620 | */ |
| 1621 | public final boolean serverSupportsQryclsimp() { |
| 1622 | NetDatabaseMetaData metadata = |
| 1623 | (NetDatabaseMetaData) databaseMetaData_; |
| 1624 | return metadata.serverSupportsQryclsimp(); |
| 1625 | } |
| 1626 | |
| 1627 | /** |
| 1628 | * Returns if a transaction is in process |
| 1629 | * @return open |
| 1630 | */ |
| 1631 | public boolean isOpen() { |
| 1632 | return open_; |
| 1633 | } |
| 1634 | |
| 1635 | /** |
| 1636 | * closes underlying connection and associated resource. |
| 1637 | */ |
| 1638 | synchronized public void close() throws SQLException { |
| 1639 | // call super.close*() to do the close* |
| 1640 | super.close(); |
| 1641 | if (!isXAConnection_) |
| 1642 | return; |
| 1643 | if (isOpen()) { |
| 1644 | return; // still open, return |
| 1645 | } |
| 1646 | if (xares_ != null) { |
| 1647 | xares_.removeXaresFromSameRMchain(); |
| 1648 | } |
| 1649 | } |
| 1650 | |
| 1651 | /** |
| 1652 | * closes underlying connection and associated resource. |
| 1653 | */ |
| 1654 | synchronized public void closeX() throws SQLException { |
| 1655 | // call super.close*() to do the close* |
| 1656 | super.closeX(); |
| 1657 | if (!isXAConnection_) |
| 1658 | return; |
| 1659 | if (isOpen()) { |
| 1660 | return; // still open, return |
| 1661 | } |
| 1662 | if (xares_ != null) { |
| 1663 | xares_.removeXaresFromSameRMchain(); |
| 1664 | } |
| 1665 | } |
| 1666 | |
| 1667 | /** |
| 1668 | * Invalidates connection but keeps socket open. |
| 1669 | */ |
| 1670 | synchronized public void closeForReuse() throws SqlException { |
| 1671 | // call super.close*() to do the close* |
| 1672 | super.closeForReuse(); |
| 1673 | if (!isXAConnection_) |
| 1674 | return; |
| 1675 | if (isOpen()) { |
| 1676 | return; // still open, return |
| 1677 | } |
| 1678 | if (xares_ != null) { |
| 1679 | xares_.removeXaresFromSameRMchain(); |
| 1680 | } |
| 1681 | } |
| 1682 | |
| 1683 | /** |
| 1684 | * closes resources connection will be not available |
| 1685 | * for reuse. |
| 1686 | */ |
| 1687 | synchronized public void closeResources() throws SQLException { |
| 1688 | // call super.close*() to do the close* |
| 1689 | super.closeResources(); |
| 1690 | if (!isXAConnection_) |
| 1691 | return; |
| 1692 | |
| 1693 | if (isOpen()) { |
| 1694 | return; // still open, return |
| 1695 | } |
| 1696 | if (xares_ != null) { |
| 1697 | xares_.removeXaresFromSameRMchain(); |
| 1698 | } |
| 1699 | } |
| 1700 | |
| 1701 | |
| 1702 | /** |
| 1703 | * Invokes write commit on NetXAConnection |
| 1704 | */ |
| 1705 | protected void writeXACommit_() throws SqlException { |
| 1706 | xares_.netXAConn_.writeCommit(); |
| 1707 | } |
| 1708 | |
| 1709 | /** |
| 1710 | * Invokes readCommit on NetXAConnection |
| 1711 | */ |
| 1712 | protected void readXACommit_() throws SqlException { |
| 1713 | xares_.netXAConn_.readCommit(); |
| 1714 | } |
| 1715 | |
| 1716 | /** |
| 1717 | * Invokes writeRollback on NetXAConnection |
| 1718 | */ |
| 1719 | protected void writeXARollback_() throws SqlException { |
| 1720 | xares_.netXAConn_.writeRollback(); |
| 1721 | } |
| 1722 | |
| 1723 | /** |
| 1724 | * Invokes writeRollback on NetXAConnection |
| 1725 | */ |
| 1726 | protected void readXARollback_() throws SqlException { |
| 1727 | xares_.netXAConn_.readRollback(); |
| 1728 | } |
| 1729 | |
| 1730 | |
| 1731 | protected void writeXATransactionStart(Statement statement) throws SqlException { |
| 1732 | xares_.netXAConn_.writeTransactionStart(statement); |
| 1733 | } |
| 1734 | } |
| 1735 | |