1 | /* |
2 | Copyright (C) 2002-2004 MySQL AB |
3 | |
4 | This program is free software; you can redistribute it and/or modify |
5 | it under the terms of version 2 of the GNU General Public License as |
6 | published by the Free Software Foundation. |
7 | |
8 | There are special exceptions to the terms and conditions of the GPL |
9 | as it is applied to this software. View the full text of the |
10 | exception in file EXCEPTIONS-CONNECTOR-J in the directory of this |
11 | software distribution. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 | |
22 | |
23 | |
24 | */ |
25 | package com.mysql.jdbc; |
26 | |
27 | import com.mysql.jdbc.profiler.ProfileEventSink; |
28 | import com.mysql.jdbc.profiler.ProfilerEvent; |
29 | import com.mysql.jdbc.util.ReadAheadInputStream; |
30 | import com.mysql.jdbc.util.ResultSetUtil; |
31 | |
32 | import java.io.BufferedInputStream; |
33 | import java.io.BufferedOutputStream; |
34 | import java.io.ByteArrayOutputStream; |
35 | import java.io.EOFException; |
36 | import java.io.FileInputStream; |
37 | import java.io.IOException; |
38 | import java.io.InputStream; |
39 | import java.io.OutputStreamWriter; |
40 | |
41 | import java.lang.ref.SoftReference; |
42 | |
43 | import java.math.BigInteger; |
44 | |
45 | import java.net.InetSocketAddress; |
46 | import java.net.MalformedURLException; |
47 | import java.net.Socket; |
48 | import java.net.URL; |
49 | |
50 | import java.nio.ByteBuffer; |
51 | import java.nio.channels.SocketChannel; |
52 | |
53 | import java.security.NoSuchAlgorithmException; |
54 | |
55 | import java.sql.SQLException; |
56 | |
57 | import java.util.ArrayList; |
58 | import java.util.Calendar; |
59 | import java.util.Iterator; |
60 | import java.util.LinkedList; |
61 | import java.util.List; |
62 | import java.util.Properties; |
63 | import java.util.zip.Deflater; |
64 | |
65 | |
66 | /** |
67 | * This class is used by Connection for communicating with the MySQL server. |
68 | * |
69 | * @author Mark Matthews |
70 | * @version $Id: MysqlIO.java 5417 2006-06-20 21:33:56 +0000 (Tue, 20 Jun 2006) mmatthews $ |
71 | * |
72 | * @see java.sql.Connection |
73 | */ |
74 | class MysqlIO { |
75 | protected static final int NULL_LENGTH = ~0; |
76 | protected static final int COMP_HEADER_LENGTH = 3; |
77 | protected static final int MIN_COMPRESS_LEN = 50; |
78 | protected static final int HEADER_LENGTH = 4; |
79 | private static int maxBufferSize = 65535; |
80 | private static final int CLIENT_COMPRESS = 32; /* Can use compression |
81 | protcol */ |
82 | protected static final int CLIENT_CONNECT_WITH_DB = 8; |
83 | private static final int CLIENT_FOUND_ROWS = 2; |
84 | private static final int CLIENT_LOCAL_FILES = 128; /* Can use LOAD DATA |
85 | LOCAL */ |
86 | |
87 | /* Found instead of |
88 | affected rows */ |
89 | private static final int CLIENT_LONG_FLAG = 4; /* Get all column flags */ |
90 | private static final int CLIENT_LONG_PASSWORD = 1; /* new more secure |
91 | passwords */ |
92 | private static final int CLIENT_PROTOCOL_41 = 512; // for > 4.1.1 |
93 | private static final int CLIENT_INTERACTIVE = 1024; |
94 | protected static final int CLIENT_SSL = 2048; |
95 | private static final int CLIENT_TRANSACTIONS = 8192; // Client knows about transactions |
96 | protected static final int CLIENT_RESERVED = 16384; // for 4.1.0 only |
97 | protected static final int CLIENT_SECURE_CONNECTION = 32768; |
98 | private static final int CLIENT_MULTI_QUERIES = 65536; // Enable/disable multiquery support |
99 | private static final int CLIENT_MULTI_RESULTS = 131072; // Enable/disable multi-results |
100 | private static final int SERVER_STATUS_IN_TRANS = 1; |
101 | private static final int SERVER_STATUS_AUTOCOMMIT = 2; // Server in auto_commit mode |
102 | private static final int SERVER_MORE_RESULTS_EXISTS = 8; // Multi query - next query exists |
103 | private static final int SERVER_QUERY_NO_GOOD_INDEX_USED = 16; |
104 | private static final int SERVER_QUERY_NO_INDEX_USED = 32; |
105 | private static final int SERVER_STATUS_CURSOR_EXISTS = 64; |
106 | private static final String FALSE_SCRAMBLE = "xxxxxxxx"; //$NON-NLS-1$ |
107 | protected static final int MAX_QUERY_SIZE_TO_LOG = 1024; // truncate logging of queries at 1K |
108 | protected static final int MAX_QUERY_SIZE_TO_EXPLAIN = 1024 * 1024; // don't explain queries above 1MB |
109 | |
110 | /** |
111 | * We store the platform 'encoding' here, only used to avoid munging |
112 | * filenames for LOAD DATA LOCAL INFILE... |
113 | */ |
114 | private static String jvmPlatformCharset = null; |
115 | |
116 | /** |
117 | * Are we using packed or unpacked binary result set rows? |
118 | */ |
119 | private boolean binaryResultsAreUnpacked = true; |
120 | |
121 | /** |
122 | * We need to have a 'marker' for all-zero datetimes so that ResultSet |
123 | * can decide what to do based on connection setting |
124 | */ |
125 | protected final static String ZERO_DATE_VALUE_MARKER = "0000-00-00"; |
126 | protected final static String ZERO_DATETIME_VALUE_MARKER = "0000-00-00 00:00:00"; |
127 | |
128 | static { |
129 | OutputStreamWriter outWriter = null; |
130 | |
131 | // |
132 | // Use the I/O system to get the encoding (if possible), to avoid |
133 | // security restrictions on System.getProperty("file.encoding") in |
134 | // applets (why is that restricted?) |
135 | // |
136 | try { |
137 | outWriter = new OutputStreamWriter(new ByteArrayOutputStream()); |
138 | jvmPlatformCharset = outWriter.getEncoding(); |
139 | } finally { |
140 | try { |
141 | if (outWriter != null) { |
142 | outWriter.close(); |
143 | } |
144 | } catch (IOException ioEx) { |
145 | // ignore |
146 | } |
147 | } |
148 | } |
149 | |
150 | /** Max number of bytes to dump when tracing the protocol */ |
151 | private final static int MAX_PACKET_DUMP_LENGTH = 1024; |
152 | private boolean packetSequenceReset = false; |
153 | protected int serverCharsetIndex; |
154 | |
155 | // |
156 | // Use this when reading in rows to avoid thousands of new() |
157 | // calls, because the byte arrays just get copied out of the |
158 | // packet anyway |
159 | // |
160 | private Buffer reusablePacket = null; |
161 | private Buffer sendPacket = null; |
162 | private Buffer sharedSendPacket = null; |
163 | |
164 | /** Data to the server */ |
165 | protected BufferedOutputStream mysqlOutput = null; |
166 | protected com.mysql.jdbc.Connection connection; |
167 | private Deflater deflater = null; |
168 | protected InputStream mysqlInput = null; |
169 | private LinkedList packetDebugRingBuffer = null; |
170 | private RowData streamingData = null; |
171 | |
172 | /** The connection to the server */ |
173 | protected Socket mysqlConnection = null; |
174 | private SocketFactory socketFactory = null; |
175 | |
176 | // |
177 | // Packet used for 'LOAD DATA LOCAL INFILE' |
178 | // |
179 | // We use a SoftReference, so that we don't penalize intermittent |
180 | // use of this feature |
181 | // |
182 | private SoftReference loadFileBufRef; |
183 | |
184 | // |
185 | // Used to send large packets to the server versions 4+ |
186 | // We use a SoftReference, so that we don't penalize intermittent |
187 | // use of this feature |
188 | // |
189 | private SoftReference splitBufRef; |
190 | protected String host = null; |
191 | protected String seed; |
192 | private String serverVersion = null; |
193 | private String socketFactoryClassName = null; |
194 | private byte[] packetHeaderBuf = new byte[4]; |
195 | private boolean colDecimalNeedsBump = false; // do we need to increment the colDecimal flag? |
196 | private boolean hadWarnings = false; |
197 | private boolean has41NewNewProt = false; |
198 | |
199 | /** Does the server support long column info? */ |
200 | private boolean hasLongColumnInfo = false; |
201 | private boolean isInteractiveClient = false; |
202 | private boolean logSlowQueries = false; |
203 | |
204 | /** |
205 | * Does the character set of this connection match the character set of the |
206 | * platform |
207 | */ |
208 | private boolean platformDbCharsetMatches = true; // changed once we've connected. |
209 | private boolean profileSql = false; |
210 | private boolean queryBadIndexUsed = false; |
211 | private boolean queryNoIndexUsed = false; |
212 | |
213 | /** Should we use 4.1 protocol extensions? */ |
214 | private boolean use41Extensions = false; |
215 | private boolean useCompression = false; |
216 | private boolean useNewLargePackets = false; |
217 | private boolean useNewUpdateCounts = false; // should we use the new larger update counts? |
218 | private byte packetSequence = 0; |
219 | private byte readPacketSequence = -1; |
220 | private boolean checkPacketSequence = false; |
221 | byte protocolVersion = 0; |
222 | private int maxAllowedPacket = 1024 * 1024; |
223 | protected int maxThreeBytes = 255 * 255 * 255; |
224 | protected int port = 3306; |
225 | protected int serverCapabilities; |
226 | private int serverMajorVersion = 0; |
227 | private int serverMinorVersion = 0; |
228 | private int serverStatus = 0; |
229 | private int serverSubMinorVersion = 0; |
230 | private int warningCount = 0; |
231 | protected long clientParam = 0; |
232 | protected long lastPacketSentTimeMs = 0; |
233 | private boolean traceProtocol = false; |
234 | private boolean enablePacketDebug = false; |
235 | private ByteBuffer channelClearBuf; |
236 | private Calendar sessionCalendar; |
237 | private boolean useConnectWithDb; |
238 | private boolean needToGrabQueryFromPacket; |
239 | private boolean autoGenerateTestcaseScript; |
240 | private long threadId; |
241 | |
242 | /** |
243 | * Constructor: Connect to the MySQL server and setup a stream connection. |
244 | * |
245 | * @param host the hostname to connect to |
246 | * @param port the port number that the server is listening on |
247 | * @param props the Properties from DriverManager.getConnection() |
248 | * @param socketFactoryClassName the socket factory to use |
249 | * @param conn the Connection that is creating us |
250 | * @param socketTimeout the timeout to set for the socket (0 means no |
251 | * timeout) |
252 | * |
253 | * @throws IOException if an IOException occurs during connect. |
254 | * @throws SQLException if a database access error occurs. |
255 | */ |
256 | public MysqlIO(String host, int port, Properties props, |
257 | String socketFactoryClassName, com.mysql.jdbc.Connection conn, |
258 | int socketTimeout) throws IOException, SQLException { |
259 | this.connection = conn; |
260 | |
261 | if (this.connection.getEnablePacketDebug()) { |
262 | this.packetDebugRingBuffer = new LinkedList(); |
263 | } |
264 | |
265 | this.logSlowQueries = this.connection.getLogSlowQueries(); |
266 | |
267 | this.reusablePacket = new Buffer( |
268 | this.connection.getNetBufferLength()); |
269 | |
270 | this.port = port; |
271 | this.host = host; |
272 | |
273 | this.socketFactoryClassName = socketFactoryClassName; |
274 | this.socketFactory = createSocketFactory(); |
275 | |
276 | this.mysqlConnection = this.socketFactory.connect(this.host, |
277 | this.port, props); |
278 | |
279 | if (socketTimeout != 0) { |
280 | try { |
281 | this.mysqlConnection.setSoTimeout(socketTimeout); |
282 | } catch (Exception ex) { |
283 | /* Ignore if the platform does not support it */ |
284 | ; |
285 | } |
286 | } |
287 | |
288 | this.mysqlConnection = this.socketFactory.beforeHandshake(); |
289 | |
290 | if (this.connection.getUseReadAheadInput()) { |
291 | this.mysqlInput = new ReadAheadInputStream(this.mysqlConnection.getInputStream(), 16384, |
292 | this.connection.getTraceProtocol(), |
293 | this.connection.getLog()); |
294 | } else if (this.connection.useUnbufferedInput()) { |
295 | this.mysqlInput = this.mysqlConnection.getInputStream(); |
296 | } else { |
297 | this.mysqlInput = new BufferedInputStream(this.mysqlConnection.getInputStream(), |
298 | 16384); |
299 | } |
300 | |
301 | this.mysqlOutput = new BufferedOutputStream(this.mysqlConnection.getOutputStream(), |
302 | 16384); |
303 | |
304 | |
305 | this.isInteractiveClient = this.connection.getInteractiveClient(); |
306 | this.profileSql = this.connection.getProfileSql(); |
307 | this.sessionCalendar = Calendar.getInstance(); |
308 | this.autoGenerateTestcaseScript = this.connection.getAutoGenerateTestcaseScript(); |
309 | |
310 | this.needToGrabQueryFromPacket = (this.profileSql || |
311 | this.logSlowQueries || |
312 | this.autoGenerateTestcaseScript); |
313 | } |
314 | |
315 | /** |
316 | * Does the server send back extra column info? |
317 | * |
318 | * @return true if so |
319 | */ |
320 | public boolean hasLongColumnInfo() { |
321 | return this.hasLongColumnInfo; |
322 | } |
323 | |
324 | protected boolean isDataAvailable() throws SQLException { |
325 | try { |
326 | return this.mysqlInput.available() > 0; |
327 | } catch (IOException ioEx) { |
328 | throw new CommunicationsException(this.connection, |
329 | this.lastPacketSentTimeMs, ioEx); |
330 | } |
331 | } |
332 | |
333 | /** |
334 | * DOCUMENT ME! |
335 | * |
336 | * @return Returns the lastPacketSentTimeMs. |
337 | */ |
338 | protected long getLastPacketSentTimeMs() { |
339 | return this.lastPacketSentTimeMs; |
340 | } |
341 | |
342 | /** |
343 | * Build a result set. Delegates to buildResultSetWithRows() to build a |
344 | * JDBC-version-specific ResultSet, given rows as byte data, and field |
345 | * information. |
346 | * |
347 | * @param callingStatement DOCUMENT ME! |
348 | * @param columnCount the number of columns in the result set |
349 | * @param maxRows the maximum number of rows to read (-1 means all rows) |
350 | * @param resultSetType (TYPE_FORWARD_ONLY, TYPE_SCROLL_????) |
351 | * @param resultSetConcurrency the type of result set (CONCUR_UPDATABLE or |
352 | * READ_ONLY) |
353 | * @param streamResults should the result set be read all at once, or |
354 | * streamed? |
355 | * @param catalog the database name in use when the result set was created |
356 | * @param isBinaryEncoded is this result set in native encoding? |
357 | * @param unpackFieldInfo should we read MYSQL_FIELD info (if available)? |
358 | * |
359 | * @return a result set |
360 | * |
361 | * @throws SQLException if a database access error occurs |
362 | */ |
363 | protected ResultSet getResultSet(Statement callingStatement, |
364 | long columnCount, int maxRows, int resultSetType, |
365 | int resultSetConcurrency, boolean streamResults, String catalog, |
366 | boolean isBinaryEncoded, boolean unpackFieldInfo) |
367 | throws SQLException { |
368 | Buffer packet; // The packet from the server |
369 | Field[] fields = null; |
370 | |
371 | if (unpackFieldInfo) { |
372 | fields = new Field[(int) columnCount]; |
373 | } |
374 | |
375 | // Read in the column information |
376 | for (int i = 0; i < columnCount; i++) { |
377 | Buffer fieldPacket = null; |
378 | |
379 | fieldPacket = readPacket(); |
380 | |
381 | if (unpackFieldInfo) { |
382 | fields[i] = unpackField(fieldPacket, false); |
383 | } |
384 | } |
385 | |
386 | packet = reuseAndReadPacket(this.reusablePacket); |
387 | |
388 | readServerStatusForResultSets(packet); |
389 | |
390 | // |
391 | // Handle cursor-based fetch first |
392 | // |
393 | |
394 | if (this.connection.versionMeetsMinimum(5, 0, 2) |
395 | && isBinaryEncoded |
396 | && callingStatement != null |
397 | && callingStatement.getFetchSize() != 0 |
398 | && callingStatement.getResultSetType() == ResultSet.TYPE_FORWARD_ONLY) { |
399 | ServerPreparedStatement prepStmt = (com.mysql.jdbc.ServerPreparedStatement) callingStatement; |
400 | |
401 | Field[] fieldMetadata = ((com.mysql.jdbc.ResultSetMetaData) prepStmt.getMetaData()).fields; |
402 | |
403 | boolean usingCursor = true; |
404 | |
405 | // |
406 | // Server versions 5.0.5 or newer will only open |
407 | // a cursor and set this flag if they can, otherwise |
408 | // they punt and go back to mysql_store_results() behavior |
409 | // |
410 | |
411 | if (this.connection.versionMeetsMinimum(5, 0, 5)) { |
412 | usingCursor = (this.serverStatus & |
413 | SERVER_STATUS_CURSOR_EXISTS) != 0; |
414 | } |
415 | |
416 | if (usingCursor) { |
417 | RowData rows = new CursorRowProvider( |
418 | this, |
419 | prepStmt, |
420 | ((com.mysql.jdbc.ResultSetMetaData) prepStmt.getMetaData()).fields); |
421 | |
422 | ResultSet rs = buildResultSetWithRows( |
423 | callingStatement, |
424 | catalog, |
425 | ((com.mysql.jdbc.ResultSetMetaData) prepStmt.getMetaData()).fields, |
426 | rows, resultSetType, resultSetConcurrency, isBinaryEncoded); |
427 | |
428 | if (usingCursor) { |
429 | rs.setFetchSize(callingStatement.getFetchSize()); |
430 | } |
431 | |
432 | return rs; |
433 | } |
434 | } |
435 | |
436 | RowData rowData = null; |
437 | |
438 | if (!streamResults) { |
439 | rowData = readSingleRowSet(columnCount, maxRows, |
440 | resultSetConcurrency, isBinaryEncoded, fields); |
441 | } else { |
442 | rowData = new RowDataDynamic(this, (int) columnCount, fields, |
443 | isBinaryEncoded); |
444 | this.streamingData = rowData; |
445 | } |
446 | |
447 | ResultSet rs = buildResultSetWithRows(callingStatement, catalog, fields, |
448 | rowData, resultSetType, resultSetConcurrency, isBinaryEncoded); |
449 | |
450 | |
451 | |
452 | return rs; |
453 | } |
454 | |
455 | /** |
456 | * Forcibly closes the underlying socket to MySQL. |
457 | */ |
458 | protected final void forceClose() { |
459 | try { |
460 | if (this.mysqlInput != null) { |
461 | this.mysqlInput.close(); |
462 | } |
463 | } catch (IOException ioEx) { |
464 | // we can't do anything constructive about this |
465 | // Let the JVM clean it up later |
466 | this.mysqlInput = null; |
467 | } |
468 | |
469 | try { |
470 | if (this.mysqlOutput != null) { |
471 | this.mysqlOutput.close(); |
472 | } |
473 | } catch (IOException ioEx) { |
474 | // we can't do anything constructive about this |
475 | // Let the JVM clean it up later |
476 | this.mysqlOutput = null; |
477 | } |
478 | |
479 | try { |
480 | if (this.mysqlConnection != null) { |
481 | this.mysqlConnection.close(); |
482 | } |
483 | } catch (IOException ioEx) { |
484 | // we can't do anything constructive about this |
485 | // Let the JVM clean it up later |
486 | this.mysqlConnection = null; |
487 | } |
488 | } |
489 | |
490 | /** |
491 | * Read one packet from the MySQL server |
492 | * |
493 | * @return the packet from the server. |
494 | * |
495 | * @throws SQLException DOCUMENT ME! |
496 | * @throws CommunicationsException DOCUMENT ME! |
497 | */ |
498 | protected final Buffer readPacket() throws SQLException { |
499 | try { |
500 | |
501 | int lengthRead = readFully(this.mysqlInput, |
502 | this.packetHeaderBuf, 0, 4); |
503 | |
504 | if (lengthRead < 4) { |
505 | forceClose(); |
506 | throw new IOException(Messages.getString("MysqlIO.1")); //$NON-NLS-1$ |
507 | } |
508 | |
509 | int packetLength = (this.packetHeaderBuf[0] & 0xff) + |
510 | ((this.packetHeaderBuf[1] & 0xff) << 8) + |
511 | ((this.packetHeaderBuf[2] & 0xff) << 16); |
512 | |
513 | if (this.traceProtocol) { |
514 | StringBuffer traceMessageBuf = new StringBuffer(); |
515 | |
516 | traceMessageBuf.append(Messages.getString("MysqlIO.2")); //$NON-NLS-1$ |
517 | traceMessageBuf.append(packetLength); |
518 | traceMessageBuf.append(Messages.getString("MysqlIO.3")); //$NON-NLS-1$ |
519 | traceMessageBuf.append(StringUtils.dumpAsHex( |
520 | this.packetHeaderBuf, 4)); |
521 | |
522 | this.connection.getLog().logTrace(traceMessageBuf.toString()); |
523 | } |
524 | |
525 | byte multiPacketSeq = this.packetHeaderBuf[3]; |
526 | |
527 | if (!this.packetSequenceReset) { |
528 | if (this.enablePacketDebug && this.checkPacketSequence) { |
529 | checkPacketSequencing(multiPacketSeq); |
530 | } |
531 | } else { |
532 | this.packetSequenceReset = false; |
533 | } |
534 | |
535 | this.readPacketSequence = multiPacketSeq; |
536 | |
537 | // Read data |
538 | byte[] buffer = new byte[packetLength + 1]; |
539 | int numBytesRead = readFully(this.mysqlInput, buffer, 0, |
540 | packetLength); |
541 | |
542 | if (numBytesRead != packetLength) { |
543 | throw new IOException("Short read, expected " + |
544 | packetLength + " bytes, only read " + numBytesRead); |
545 | } |
546 | |
547 | buffer[packetLength] = 0; |
548 | |
549 | Buffer packet = new Buffer(buffer); |
550 | packet.setBufLength(packetLength + 1); |
551 | |
552 | if (this.traceProtocol) { |
553 | StringBuffer traceMessageBuf = new StringBuffer(); |
554 | |
555 | traceMessageBuf.append(Messages.getString("MysqlIO.4")); //$NON-NLS-1$ |
556 | traceMessageBuf.append(getPacketDumpToLog(packet, |
557 | packetLength)); |
558 | |
559 | this.connection.getLog().logTrace(traceMessageBuf.toString()); |
560 | } |
561 | |
562 | if (this.enablePacketDebug) { |
563 | enqueuePacketForDebugging(false, false, 0, |
564 | this.packetHeaderBuf, packet); |
565 | } |
566 | |
567 | return packet; |
568 | } catch (IOException ioEx) { |
569 | throw new CommunicationsException(this.connection, |
570 | this.lastPacketSentTimeMs, ioEx); |
571 | } catch (OutOfMemoryError oom) { |
572 | try { |
573 | this.connection.realClose(false, false, true, oom); |
574 | } finally { |
575 | throw oom; |
576 | } |
577 | } |
578 | } |
579 | |
580 | /** |
581 | * Unpacks the Field information from the given packet. Understands pre 4.1 |
582 | * and post 4.1 server version field packet structures. |
583 | * |
584 | * @param packet the packet containing the field information |
585 | * @param extractDefaultValues should default values be extracted? |
586 | * |
587 | * @return the unpacked field |
588 | * |
589 | * @throws SQLException DOCUMENT ME! |
590 | */ |
591 | protected final Field unpackField(Buffer packet, |
592 | boolean extractDefaultValues) throws SQLException { |
593 | if (this.use41Extensions) { |
594 | // we only store the position of the string and |
595 | // materialize only if needed... |
596 | if (this.has41NewNewProt) { |
597 | // Not used yet, 5.0? |
598 | int catalogNameStart = packet.getPosition() + 1; |
599 | int catalogNameLength = packet.fastSkipLenString(); |
600 | catalogNameStart = adjustStartForFieldLength(catalogNameStart, catalogNameLength); |
601 | } |
602 | |
603 | int databaseNameStart = packet.getPosition() + 1; |
604 | int databaseNameLength = packet.fastSkipLenString(); |
605 | databaseNameStart = adjustStartForFieldLength(databaseNameStart, databaseNameLength); |
606 | |
607 | int tableNameStart = packet.getPosition() + 1; |
608 | int tableNameLength = packet.fastSkipLenString(); |
609 | tableNameStart = adjustStartForFieldLength(tableNameStart, tableNameLength); |
610 | |
611 | // orgTableName is never used so skip |
612 | int originalTableNameStart = packet.getPosition() + 1; |
613 | int originalTableNameLength = packet.fastSkipLenString(); |
614 | originalTableNameStart = adjustStartForFieldLength(originalTableNameStart, originalTableNameLength); |
615 | |
616 | // we only store the position again... |
617 | int nameStart = packet.getPosition() + 1; |
618 | int nameLength = packet.fastSkipLenString(); |
619 | |
620 | nameStart = adjustStartForFieldLength(nameStart, nameLength); |
621 | |
622 | // orgColName is not required so skip... |
623 | int originalColumnNameStart = packet.getPosition() + 1; |
624 | int originalColumnNameLength = packet.fastSkipLenString(); |
625 | originalColumnNameStart = adjustStartForFieldLength(originalColumnNameStart, originalColumnNameLength); |
626 | |
627 | packet.readByte(); |
628 | |
629 | short charSetNumber = (short) packet.readInt(); |
630 | |
631 | long colLength = 0; |
632 | |
633 | if (this.has41NewNewProt) { |
634 | colLength = packet.readLong(); |
635 | } else { |
636 | colLength = packet.readLongInt(); |
637 | } |
638 | |
639 | int colType = packet.readByte() & 0xff; |
640 | |
641 | short colFlag = 0; |
642 | |
643 | if (this.hasLongColumnInfo) { |
644 | colFlag = (short) packet.readInt(); |
645 | } else { |
646 | colFlag = (short) (packet.readByte() & 0xff); |
647 | } |
648 | |
649 | int colDecimals = packet.readByte() & 0xff; |
650 | |
651 | int defaultValueStart = -1; |
652 | int defaultValueLength = -1; |
653 | |
654 | if (extractDefaultValues) { |
655 | defaultValueStart = packet.getPosition() + 1; |
656 | defaultValueLength = packet.fastSkipLenString(); |
657 | } |
658 | |
659 | Field field = new Field(this.connection, packet.getByteBuffer(), |
660 | databaseNameStart, databaseNameLength, tableNameStart, |
661 | tableNameLength, originalTableNameStart, |
662 | originalTableNameLength, nameStart, nameLength, |
663 | originalColumnNameStart, originalColumnNameLength, |
664 | colLength, colType, colFlag, colDecimals, |
665 | defaultValueStart, defaultValueLength, charSetNumber); |
666 | |
667 | return field; |
668 | } |
669 | |
670 | int tableNameStart = packet.getPosition() + 1; |
671 | int tableNameLength = packet.fastSkipLenString(); |
672 | tableNameStart = adjustStartForFieldLength(tableNameStart, tableNameLength); |
673 | |
674 | int nameStart = packet.getPosition() + 1; |
675 | int nameLength = packet.fastSkipLenString(); |
676 | nameStart = adjustStartForFieldLength(nameStart, nameLength); |
677 | |
678 | int colLength = packet.readnBytes(); |
679 | int colType = packet.readnBytes(); |
680 | packet.readByte(); // We know it's currently 2 |
681 | |
682 | short colFlag = 0; |
683 | |
684 | if (this.hasLongColumnInfo) { |
685 | colFlag = (short) (packet.readInt()); |
686 | } else { |
687 | colFlag = (short) (packet.readByte() & 0xff); |
688 | } |
689 | |
690 | int colDecimals = (packet.readByte() & 0xff); |
691 | |
692 | if (this.colDecimalNeedsBump) { |
693 | colDecimals++; |
694 | } |
695 | |
696 | Field field = new Field(this.connection, packet.getByteBuffer(), |
697 | nameStart, nameLength, tableNameStart, tableNameLength, |
698 | colLength, colType, colFlag, colDecimals); |
699 | |
700 | return field; |
701 | } |
702 | |
703 | private int adjustStartForFieldLength(int nameStart, int nameLength) { |
704 | if (nameLength < 251) { |
705 | return nameStart; |
706 | } |
707 | |
708 | if (nameLength >= 251 && nameLength < 65536) { |
709 | return nameStart + 2; |
710 | } |
711 | |
712 | if (nameLength >= 65536 && nameLength < 16777216) { |
713 | return nameStart + 3; |
714 | } |
715 | |
716 | return nameStart + 8; |
717 | } |
718 | |
719 | protected boolean isSetNeededForAutoCommitMode(boolean autoCommitFlag) { |
720 | if (this.use41Extensions && this.connection.getElideSetAutoCommits()) { |
721 | boolean autoCommitModeOnServer = ((this.serverStatus & |
722 | SERVER_STATUS_AUTOCOMMIT) != 0); |
723 | |
724 | if (!autoCommitFlag) { |
725 | // Just to be safe, check if a transaction is in progress on the server.... |
726 | // if so, then we must be in autoCommit == false |
727 | // therefore return the opposite of transaction status |
728 | boolean inTransactionOnServer = ((this.serverStatus & |
729 | SERVER_STATUS_IN_TRANS) != 0); |
730 | |
731 | return !inTransactionOnServer; |
732 | } |
733 | |
734 | return !autoCommitModeOnServer; |
735 | } |
736 | |
737 | return true; |
738 | } |
739 | |
740 | /** |
741 | * Re-authenticates as the given user and password |
742 | * |
743 | * @param userName DOCUMENT ME! |
744 | * @param password DOCUMENT ME! |
745 | * @param database DOCUMENT ME! |
746 | * |
747 | * @throws SQLException DOCUMENT ME! |
748 | */ |
749 | protected void changeUser(String userName, String password, String database) |
750 | throws SQLException { |
751 | this.packetSequence = -1; |
752 | |
753 | int passwordLength = 16; |
754 | int userLength = 0; |
755 | |
756 | if (userName != null) { |
757 | userLength = userName.length(); |
758 | } |
759 | |
760 | int packLength = (userLength + passwordLength) + 7 + HEADER_LENGTH; |
761 | |
762 | if ((this.serverCapabilities & CLIENT_SECURE_CONNECTION) != 0) { |
763 | Buffer changeUserPacket = new Buffer(packLength + 1); |
764 | changeUserPacket.writeByte((byte) MysqlDefs.COM_CHANGE_USER); |
765 | |
766 | if (versionMeetsMinimum(4, 1, 1)) { |
767 | secureAuth411(changeUserPacket, packLength, userName, password, |
768 | database, false); |
769 | } else { |
770 | secureAuth(changeUserPacket, packLength, userName, password, |
771 | database, false); |
772 | } |
773 | } else { |
774 | // Passwords can be 16 chars long |
775 | Buffer packet = new Buffer(packLength); |
776 | packet.writeByte((byte) MysqlDefs.COM_CHANGE_USER); |
777 | |
778 | // User/Password data |
779 | packet.writeString(userName); |
780 | |
781 | if (this.protocolVersion > 9) { |
782 | packet.writeString(Util.newCrypt(password, this.seed)); |
783 | } else { |
784 | packet.writeString(Util.oldCrypt(password, this.seed)); |
785 | } |
786 | |
787 | boolean localUseConnectWithDb = this.useConnectWithDb && |
788 | (database != null && database.length() > 0); |
789 | |
790 | if (localUseConnectWithDb) { |
791 | packet.writeString(database); |
792 | } |
793 | |
794 | send(packet, packet.getPosition()); |
795 | checkErrorPacket(); |
796 | |
797 | if (!localUseConnectWithDb) { |
798 | changeDatabaseTo(database); |
799 | } |
800 | } |
801 | } |
802 | |
803 | /** |
804 | * Checks for errors in the reply packet, and if none, returns the reply |
805 | * packet, ready for reading |
806 | * |
807 | * @return a packet ready for reading. |
808 | * |
809 | * @throws SQLException is the packet is an error packet |
810 | */ |
811 | protected Buffer checkErrorPacket() throws SQLException { |
812 | return checkErrorPacket(-1); |
813 | } |
814 | |
815 | /** |
816 | * Determines if the database charset is the same as the platform charset |
817 | */ |
818 | protected void checkForCharsetMismatch() { |
819 | if (this.connection.getUseUnicode() && |
820 | (this.connection.getEncoding() != null)) { |
821 | String encodingToCheck = jvmPlatformCharset; |
822 | |
823 | if (encodingToCheck == null) { |
824 | encodingToCheck = System.getProperty("file.encoding"); //$NON-NLS-1$ |
825 | } |
826 | |
827 | if (encodingToCheck == null) { |
828 | this.platformDbCharsetMatches = false; |
829 | } else { |
830 | this.platformDbCharsetMatches = encodingToCheck.equals(this.connection.getEncoding()); |
831 | } |
832 | } |
833 | } |
834 | |
835 | protected void clearInputStream() throws SQLException { |
836 | |
837 | try { |
838 | int len = this.mysqlInput.available(); |
839 | |
840 | while (len > 0) { |
841 | this.mysqlInput.skip(len); |
842 | len = this.mysqlInput.available(); |
843 | } |
844 | } catch (IOException ioEx) { |
845 | throw new CommunicationsException(this.connection, |
846 | this.lastPacketSentTimeMs, ioEx); |
847 | } |
848 | } |
849 | |
850 | protected void resetReadPacketSequence() { |
851 | this.readPacketSequence = 0; |
852 | } |
853 | |
854 | protected void dumpPacketRingBuffer() throws SQLException { |
855 | if ((this.packetDebugRingBuffer != null) && |
856 | this.connection.getEnablePacketDebug()) { |
857 | StringBuffer dumpBuffer = new StringBuffer(); |
858 | |
859 | dumpBuffer.append("Last " + this.packetDebugRingBuffer.size() + |
860 | " packets received from server, from oldest->newest:\n"); |
861 | dumpBuffer.append("\n"); |
862 | |
863 | for (Iterator ringBufIter = this.packetDebugRingBuffer.iterator(); |
864 | ringBufIter.hasNext();) { |
865 | dumpBuffer.append((StringBuffer) ringBufIter.next()); |
866 | dumpBuffer.append("\n"); |
867 | } |
868 | |
869 | this.connection.getLog().logTrace(dumpBuffer.toString()); |
870 | } |
871 | } |
872 | |
873 | /** |
874 | * Runs an 'EXPLAIN' on the given query and dumps the results to the log |
875 | * |
876 | * @param querySQL DOCUMENT ME! |
877 | * @param truncatedQuery DOCUMENT ME! |
878 | * |
879 | * @throws SQLException DOCUMENT ME! |
880 | */ |
881 | protected void explainSlowQuery(byte[] querySQL, String truncatedQuery) |
882 | throws SQLException { |
883 | if (StringUtils.startsWithIgnoreCaseAndWs(truncatedQuery, "SELECT")) { //$NON-NLS-1$ |
884 | |
885 | PreparedStatement stmt = null; |
886 | java.sql.ResultSet rs = null; |
887 | |
888 | try { |
889 | stmt = this.connection.clientPrepareStatement("EXPLAIN ?"); //$NON-NLS-1$ |
890 | stmt.setBytesNoEscapeNoQuotes(1, querySQL); |
891 | rs = stmt.executeQuery(); |
892 | |
893 | StringBuffer explainResults = new StringBuffer(Messages.getString( |
894 | "MysqlIO.8") + truncatedQuery //$NON-NLS-1$ |
895 | +Messages.getString("MysqlIO.9")); //$NON-NLS-1$ |
896 | |
897 | ResultSetUtil.appendResultSetSlashGStyle(explainResults, rs); |
898 | |
899 | this.connection.getLog().logWarn(explainResults.toString()); |
900 | } catch (SQLException sqlEx) { |
901 | } finally { |
902 | if (rs != null) { |
903 | rs.close(); |
904 | } |
905 | |
906 | if (stmt != null) { |
907 | stmt.close(); |
908 | } |
909 | } |
910 | } else { |
911 | } |
912 | } |
913 | |
914 | static int getMaxBuf() { |
915 | return maxBufferSize; |
916 | } |
917 | |
918 | /** |
919 | * Get the major version of the MySQL server we are talking to. |
920 | * |
921 | * @return DOCUMENT ME! |
922 | */ |
923 | final int getServerMajorVersion() { |
924 | return this.serverMajorVersion; |
925 | } |
926 | |
927 | /** |
928 | * Get the minor version of the MySQL server we are talking to. |
929 | * |
930 | * @return DOCUMENT ME! |
931 | */ |
932 | final int getServerMinorVersion() { |
933 | return this.serverMinorVersion; |
934 | } |
935 | |
936 | /** |
937 | * Get the sub-minor version of the MySQL server we are talking to. |
938 | * |
939 | * @return DOCUMENT ME! |
940 | */ |
941 | final int getServerSubMinorVersion() { |
942 | return this.serverSubMinorVersion; |
943 | } |
944 | |
945 | /** |
946 | * Get the version string of the server we are talking to |
947 | * |
948 | * @return DOCUMENT ME! |
949 | */ |
950 | String getServerVersion() { |
951 | return this.serverVersion; |
952 | } |
953 | |
954 | /** |
955 | * Initialize communications with the MySQL server. Handles logging on, and |
956 | * handling initial connection errors. |
957 | * |
958 | * @param user DOCUMENT ME! |
959 | * @param password DOCUMENT ME! |
960 | * @param database DOCUMENT ME! |
961 | * |
962 | * @throws SQLException DOCUMENT ME! |
963 | * @throws CommunicationsException DOCUMENT ME! |
964 | */ |
965 | void doHandshake(String user, String password, String database) |
966 | throws SQLException { |
967 | // Read the first packet |
968 | this.checkPacketSequence = false; |
969 | this.readPacketSequence = 0; |
970 | |
971 | Buffer buf = readPacket(); |
972 | |
973 | // Get the protocol version |
974 | this.protocolVersion = buf.readByte(); |
975 | |
976 | if (this.protocolVersion == -1) { |
977 | try { |
978 | this.mysqlConnection.close(); |
979 | } catch (Exception e) { |
980 | ; // ignore |
981 | } |
982 | |
983 | int errno = 2000; |
984 | |
985 | errno = buf.readInt(); |
986 | |
987 | String serverErrorMessage = buf.readString(); |
988 | |
989 | StringBuffer errorBuf = new StringBuffer(Messages.getString( |
990 | "MysqlIO.10")); //$NON-NLS-1$ |
991 | errorBuf.append(serverErrorMessage); |
992 | errorBuf.append("\""); //$NON-NLS-1$ |
993 | |
994 | String xOpen = SQLError.mysqlToSqlState(errno, |
995 | this.connection.getUseSqlStateCodes()); |
996 | |
997 | throw SQLError.createSQLException(SQLError.get(xOpen) + ", " //$NON-NLS-1$ |
998 | +errorBuf.toString(), xOpen, errno); |
999 | } |
1000 | |
1001 | this.serverVersion = buf.readString(); |
1002 | |
1003 | // Parse the server version into major/minor/subminor |
1004 | int point = this.serverVersion.indexOf("."); //$NON-NLS-1$ |
1005 | |
1006 | if (point != -1) { |
1007 | try { |
1008 | int n = Integer.parseInt(this.serverVersion.substring(0, point)); |
1009 | this.serverMajorVersion = n; |
1010 | } catch (NumberFormatException NFE1) { |
1011 | ; |
1012 | } |
1013 | |
1014 | String remaining = this.serverVersion.substring(point + 1, |
1015 | this.serverVersion.length()); |
1016 | point = remaining.indexOf("."); //$NON-NLS-1$ |
1017 | |
1018 | if (point != -1) { |
1019 | try { |
1020 | int n = Integer.parseInt(remaining.substring(0, point)); |
1021 | this.serverMinorVersion = n; |
1022 | } catch (NumberFormatException nfe) { |
1023 | ; |
1024 | } |
1025 | |
1026 | remaining = remaining.substring(point + 1, remaining.length()); |
1027 | |
1028 | int pos = 0; |
1029 | |
1030 | while (pos < remaining.length()) { |
1031 | if ((remaining.charAt(pos) < '0') || |
1032 | (remaining.charAt(pos) > '9')) { |
1033 | break; |
1034 | } |
1035 | |
1036 | pos++; |
1037 | } |
1038 | |
1039 | try { |
1040 | int n = Integer.parseInt(remaining.substring(0, pos)); |
1041 | this.serverSubMinorVersion = n; |
1042 | } catch (NumberFormatException nfe) { |
1043 | ; |
1044 | } |
1045 | } |
1046 | } |
1047 | |
1048 | if (versionMeetsMinimum(4, 0, 8)) { |
1049 | this.maxThreeBytes = (256 * 256 * 256) - 1; |
1050 | this.useNewLargePackets = true; |
1051 | } else { |
1052 | this.maxThreeBytes = 255 * 255 * 255; |
1053 | this.useNewLargePackets = false; |
1054 | } |
1055 | |
1056 | this.colDecimalNeedsBump = versionMeetsMinimum(3, 23, 0); |
1057 | this.colDecimalNeedsBump = !versionMeetsMinimum(3, 23, 15); // guess? Not noted in changelog |
1058 | this.useNewUpdateCounts = versionMeetsMinimum(3, 22, 5); |
1059 | |
1060 | threadId = buf.readLong(); |
1061 | this.seed = buf.readString(); |
1062 | |
1063 | this.serverCapabilities = 0; |
1064 | |
1065 | if (buf.getPosition() < buf.getBufLength()) { |
1066 | this.serverCapabilities = buf.readInt(); |
1067 | } |
1068 | |
1069 | if (versionMeetsMinimum(4, 1, 1)) { |
1070 | int position = buf.getPosition(); |
1071 | |
1072 | /* New protocol with 16 bytes to describe server characteristics */ |
1073 | this.serverCharsetIndex = buf.readByte() & 0xff; |
1074 | this.serverStatus = buf.readInt(); |
1075 | buf.setPosition(position + 16); |
1076 | |
1077 | String seedPart2 = buf.readString(); |
1078 | StringBuffer newSeed = new StringBuffer(20); |
1079 | newSeed.append(this.seed); |
1080 | newSeed.append(seedPart2); |
1081 | this.seed = newSeed.toString(); |
1082 | } |
1083 | |
1084 | if (((this.serverCapabilities & CLIENT_COMPRESS) != 0) && |
1085 | this.connection.getUseCompression()) { |
1086 | this.clientParam |= CLIENT_COMPRESS; |
1087 | } |
1088 | |
1089 | this.useConnectWithDb = (database != null) && |
1090 | (database.length() > 0) && |
1091 | !this.connection.getCreateDatabaseIfNotExist(); |
1092 | |
1093 | if (this.useConnectWithDb) { |
1094 | this.clientParam |= CLIENT_CONNECT_WITH_DB; |
1095 | } |
1096 | |
1097 | if (((this.serverCapabilities & CLIENT_SSL) == 0) && |
1098 | this.connection.getUseSSL()) { |
1099 | if (this.connection.getRequireSSL()) { |
1100 | this.connection.close(); |
1101 | forceClose(); |
1102 | throw SQLError.createSQLException(Messages.getString("MysqlIO.15"), //$NON-NLS-1$ |
1103 | SQLError.SQL_STATE_UNABLE_TO_CONNECT_TO_DATASOURCE); |
1104 | } |
1105 | |
1106 | this.connection.setUseSSL(false); |
1107 | } |
1108 | |
1109 | if ((this.serverCapabilities & CLIENT_LONG_FLAG) != 0) { |
1110 | // We understand other column flags, as well |
1111 | this.clientParam |= CLIENT_LONG_FLAG; |
1112 | this.hasLongColumnInfo = true; |
1113 | } |
1114 | |
1115 | // return FOUND rows |
1116 | this.clientParam |= CLIENT_FOUND_ROWS; |
1117 | |
1118 | if (this.connection.getAllowLoadLocalInfile()) { |
1119 | this.clientParam |= CLIENT_LOCAL_FILES; |
1120 | } |
1121 | |
1122 | if (this.isInteractiveClient) { |
1123 | this.clientParam |= CLIENT_INTERACTIVE; |
1124 | } |
1125 | |
1126 | // Authenticate |
1127 | if (this.protocolVersion > 9) { |
1128 | this.clientParam |= CLIENT_LONG_PASSWORD; // for long passwords |
1129 | } else { |
1130 | this.clientParam &= ~CLIENT_LONG_PASSWORD; |
1131 | } |
1132 | |
1133 | // |
1134 | // 4.1 has some differences in the protocol |
1135 | // |
1136 | if (versionMeetsMinimum(4, 1, 0)) { |
1137 | if (versionMeetsMinimum(4, 1, 1)) { |
1138 | this.clientParam |= CLIENT_PROTOCOL_41; |
1139 | this.has41NewNewProt = true; |
1140 | |
1141 | // Need this to get server status values |
1142 | this.clientParam |= CLIENT_TRANSACTIONS; |
1143 | |
1144 | // We always allow multiple result sets |
1145 | this.clientParam |= CLIENT_MULTI_RESULTS; |
1146 | |
1147 | // We allow the user to configure whether |
1148 | // or not they want to support multiple queries |
1149 | // (by default, this is disabled). |
1150 | if (this.connection.getAllowMultiQueries()) { |
1151 | this.clientParam |= CLIENT_MULTI_QUERIES; |
1152 | } |
1153 | } else { |
1154 | this.clientParam |= CLIENT_RESERVED; |
1155 | this.has41NewNewProt = false; |
1156 | } |
1157 | |
1158 | this.use41Extensions = true; |
1159 | } |
1160 | |
1161 | int passwordLength = 16; |
1162 | int userLength = 0; |
1163 | int databaseLength = 0; |
1164 | |
1165 | if (user != null) { |
1166 | userLength = user.length(); |
1167 | } |
1168 | |
1169 | if (database != null) { |
1170 | databaseLength = database.length(); |
1171 | } |
1172 | |
1173 | int packLength = (userLength + passwordLength + databaseLength) + 7 + |
1174 | HEADER_LENGTH; |
1175 | Buffer packet = null; |
1176 | |
1177 | if (!this.connection.getUseSSL()) { |
1178 | if ((this.serverCapabilities & CLIENT_SECURE_CONNECTION) != 0) { |
1179 | this.clientParam |= CLIENT_SECURE_CONNECTION; |
1180 | |
1181 | if (versionMeetsMinimum(4, 1, 1)) { |
1182 | secureAuth411(null, packLength, user, password, database, |
1183 | true); |
1184 | } else { |
1185 | secureAuth(null, packLength, user, password, database, true); |
1186 | } |
1187 | } else { |
1188 | // Passwords can be 16 chars long |
1189 | packet = new Buffer(packLength); |
1190 | |
1191 | if ((this.clientParam & CLIENT_RESERVED) != 0) { |
1192 | if (versionMeetsMinimum(4, 1, 1)) { |
1193 | packet.writeLong(this.clientParam); |
1194 | packet.writeLong(this.maxThreeBytes); |
1195 | |
1196 | // charset, JDBC will connect as 'latin1', |
1197 | // and use 'SET NAMES' to change to the desired |
1198 | // charset after the connection is established. |
1199 | packet.writeByte((byte) 8); |
1200 | |
1201 | // Set of bytes reserved for future use. |
1202 | packet.writeBytesNoNull(new byte[23]); |
1203 | } else { |
1204 | packet.writeLong(this.clientParam); |
1205 | packet.writeLong(this.maxThreeBytes); |
1206 | } |
1207 | } else { |
1208 | packet.writeInt((int) this.clientParam); |
1209 | packet.writeLongInt(this.maxThreeBytes); |
1210 | } |
1211 | |
1212 | // User/Password data |
1213 | packet.writeString(user, "Cp1252", this.connection); |
1214 | |
1215 | if (this.protocolVersion > 9) { |
1216 | packet.writeString(Util.newCrypt(password, this.seed), "Cp1252", this.connection); |
1217 | } else { |
1218 | packet.writeString(Util.oldCrypt(password, this.seed), "Cp1252", this.connection); |
1219 | } |
1220 | |
1221 | if (this.useConnectWithDb) { |
1222 | packet.writeString(database, "Cp1252", this.connection); |
1223 | } |
1224 | |
1225 | send(packet, packet.getPosition()); |
1226 | } |
1227 | } else { |
1228 | negotiateSSLConnection(user, password, database, packLength); |
1229 | } |
1230 | |
1231 | // Check for errors, not for 4.1.1 or newer, |
1232 | // as the new auth protocol doesn't work that way |
1233 | // (see secureAuth411() for more details...) |
1234 | if (!versionMeetsMinimum(4, 1, 1)) { |
1235 | checkErrorPacket(); |
1236 | } |
1237 | |
1238 | // |
1239 | // Can't enable compression until after handshake |
1240 | // |
1241 | if (((this.serverCapabilities & CLIENT_COMPRESS) != 0) && |
1242 | this.connection.getUseCompression()) { |
1243 | // The following matches with ZLIB's |
1244 | // compress() |
1245 | this.deflater = new Deflater(); |
1246 | this.useCompression = true; |
1247 | this.mysqlInput = new CompressedInputStream(this.connection, |
1248 | this.mysqlInput); |
1249 | } |
1250 | |
1251 | if (!this.useConnectWithDb) { |
1252 | changeDatabaseTo(database); |
1253 | } |
1254 | } |
1255 | |
1256 | private void changeDatabaseTo(String database) throws SQLException, CommunicationsException { |
1257 | if (database == null || database.length() == 0) { |
1258 | return; |
1259 | } |
1260 | |
1261 | try { |
1262 | sendCommand(MysqlDefs.INIT_DB, database, null, false, null); |
1263 | } catch (Exception ex) { |
1264 | if (this.connection.getCreateDatabaseIfNotExist()) { |
1265 | sendCommand(MysqlDefs.QUERY, "CREATE DATABASE IF NOT EXISTS " + |
1266 | database, |
1267 | null, false, null); |
1268 | sendCommand(MysqlDefs.INIT_DB, database, null, false, null); |
1269 | } else { |
1270 | throw new CommunicationsException(this.connection, |
1271 | this.lastPacketSentTimeMs, ex); |
1272 | } |
1273 | } |
1274 | } |
1275 | |
1276 | /** |
1277 | * Retrieve one row from the MySQL server. Note: this method is not |
1278 | * thread-safe, but it is only called from methods that are guarded by |
1279 | * synchronizing on this object. |
1280 | * |
1281 | * @param fields DOCUMENT ME! |
1282 | * @param columnCount DOCUMENT ME! |
1283 | * @param isBinaryEncoded DOCUMENT ME! |
1284 | * @param resultSetConcurrency DOCUMENT ME! |
1285 | * |
1286 | * @return DOCUMENT ME! |
1287 | * |
1288 | * @throws SQLException DOCUMENT ME! |
1289 | */ |
1290 | final Object[] nextRow(Field[] fields, int columnCount, |
1291 | boolean isBinaryEncoded, int resultSetConcurrency) |
1292 | throws SQLException { |
1293 | // Get the next incoming packet, re-using the packet because |
1294 | // all the data we need gets copied out of it. |
1295 | Buffer rowPacket = checkErrorPacket(); |
1296 | |
1297 | if (!isBinaryEncoded) { |
1298 | // |
1299 | // Didn't read an error, so re-position to beginning |
1300 | // of packet in order to read result set data |
1301 | // |
1302 | rowPacket.setPosition(rowPacket.getPosition() - 1); |
1303 | |
1304 | if (!rowPacket.isLastDataPacket()) { |
1305 | byte[][] rowData = new byte[columnCount][]; |
1306 | |
1307 | int offset = 0; |
1308 | |
1309 | for (int i = 0; i < columnCount; i++) { |
1310 | rowData[i] = rowPacket.readLenByteArray(offset); |
1311 | } |
1312 | |
1313 | return rowData; |
1314 | } |
1315 | |
1316 | readServerStatusForResultSets(rowPacket); |
1317 | |
1318 | return null; |
1319 | } |
1320 | |
1321 | // |
1322 | // Handle binary-encoded data for server-side |
1323 | // PreparedStatements... |
1324 | // |
1325 | if (!rowPacket.isLastDataPacket()) { |
1326 | return unpackBinaryResultSetRow(fields, rowPacket, |
1327 | resultSetConcurrency); |
1328 | } |
1329 | |
1330 | rowPacket.setPosition(rowPacket.getPosition() - 1); |
1331 | readServerStatusForResultSets(rowPacket); |
1332 | |
1333 | return null; |
1334 | } |
1335 | |
1336 | /** |
1337 | * Log-off of the MySQL server and close the socket. |
1338 | * |
1339 | * @throws SQLException DOCUMENT ME! |
1340 | */ |
1341 | final void quit() throws SQLException { |
1342 | Buffer packet = new Buffer(6); |
1343 | this.packetSequence = -1; |
1344 | packet.writeByte((byte) MysqlDefs.QUIT); |
1345 | send(packet, packet.getPosition()); |
1346 | forceClose(); |
1347 | } |
1348 | |
1349 | /** |
1350 | * Returns the packet used for sending data (used by PreparedStatement) |
1351 | * Guarded by external synchronization on a mutex. |
1352 | * |
1353 | * @return A packet to send data with |
1354 | */ |
1355 | Buffer getSharedSendPacket() { |
1356 | if (this.sharedSendPacket == null) { |
1357 | this.sharedSendPacket = new Buffer( |
1358 | this.connection.getNetBufferLength()); |
1359 | } |
1360 | |
1361 | return this.sharedSendPacket; |
1362 | } |
1363 | |
1364 | void closeStreamer(RowData streamer) throws SQLException { |
1365 | if (this.streamingData == null) { |
1366 | throw SQLError.createSQLException(Messages.getString("MysqlIO.17") //$NON-NLS-1$ |
1367 | +streamer + Messages.getString("MysqlIO.18")); //$NON-NLS-1$ |
1368 | } |
1369 | |
1370 | if (streamer != this.streamingData) { |
1371 | throw SQLError.createSQLException(Messages.getString("MysqlIO.19") //$NON-NLS-1$ |
1372 | +streamer + Messages.getString("MysqlIO.20") //$NON-NLS-1$ |
1373 | +Messages.getString("MysqlIO.21") //$NON-NLS-1$ |
1374 | +Messages.getString("MysqlIO.22")); //$NON-NLS-1$ |
1375 | } |
1376 | |
1377 | this.streamingData = null; |
1378 | } |
1379 | |
1380 | ResultSet readAllResults(Statement callingStatement, int maxRows, |
1381 | int resultSetType, int resultSetConcurrency, boolean streamResults, |
1382 | String catalog, Buffer resultPacket, boolean isBinaryEncoded, |
1383 | long preSentColumnCount, boolean unpackFieldInfo) |
1384 | throws SQLException { |
1385 | resultPacket.setPosition(resultPacket.getPosition() - 1); |
1386 | |
1387 | ResultSet topLevelResultSet = readResultsForQueryOrUpdate(callingStatement, |
1388 | maxRows, resultSetType, resultSetConcurrency, streamResults, |
1389 | catalog, resultPacket, isBinaryEncoded, preSentColumnCount, |
1390 | unpackFieldInfo); |
1391 | |
1392 | ResultSet currentResultSet = topLevelResultSet; |
1393 | |
1394 | boolean checkForMoreResults = ((this.clientParam & |
1395 | CLIENT_MULTI_RESULTS) != 0); |
1396 | |
1397 | boolean serverHasMoreResults = (this.serverStatus & |
1398 | SERVER_MORE_RESULTS_EXISTS) != 0; |
1399 | |
1400 | // |
1401 | // TODO: We need to support streaming of multiple result sets |
1402 | // |
1403 | if (serverHasMoreResults && streamResults) { |
1404 | clearInputStream(); |
1405 | |
1406 | throw SQLError.createSQLException(Messages.getString("MysqlIO.23"), //$NON-NLS-1$ |
1407 | SQLError.SQL_STATE_DRIVER_NOT_CAPABLE); |
1408 | } |
1409 | |
1410 | boolean moreRowSetsExist = checkForMoreResults & serverHasMoreResults; |
1411 | |
1412 | while (moreRowSetsExist) { |
1413 | Buffer fieldPacket = checkErrorPacket(); |
1414 | fieldPacket.setPosition(0); |
1415 | |
1416 | if ((fieldPacket.readByte(0) == 0) && |
1417 | (fieldPacket.readByte(1) == 0) && |
1418 | (fieldPacket.readByte(2) == 0)) { |
1419 | break; |
1420 | } |
1421 | |
1422 | ResultSet newResultSet = readResultsForQueryOrUpdate(callingStatement, |
1423 | maxRows, resultSetType, resultSetConcurrency, |
1424 | streamResults, catalog, fieldPacket, isBinaryEncoded, |
1425 | preSentColumnCount, unpackFieldInfo); |
1426 | |
1427 | currentResultSet.setNextResultSet(newResultSet); |
1428 | |
1429 | currentResultSet = newResultSet; |
1430 | |
1431 | moreRowSetsExist = (this.serverStatus & SERVER_MORE_RESULTS_EXISTS) != 0; |
1432 | } |
1433 | |
1434 | if (!streamResults) { |
1435 | clearInputStream(); |
1436 | } |
1437 | |
1438 | reclaimLargeReusablePacket(); |
1439 | |
1440 | return topLevelResultSet; |
1441 | } |
1442 | |
1443 | /** |
1444 | * Sets the buffer size to max-buf |
1445 | */ |
1446 | void resetMaxBuf() { |
1447 | this.maxAllowedPacket = this.connection.getMaxAllowedPacket(); |
1448 | } |
1449 | |
1450 | /** |
1451 | * Send a command to the MySQL server If data is to be sent with command, |
1452 | * it should be put in extraData. |
1453 | * |
1454 | * Raw packets can be sent by setting queryPacket to something other |
1455 | * than null. |
1456 | * |
1457 | * @param command the MySQL protocol 'command' from MysqlDefs |
1458 | * @param extraData any 'string' data for the command |
1459 | * @param queryPacket a packet pre-loaded with data for the protocol (i.e. |
1460 | * from a client-side prepared statement). |
1461 | * @param skipCheck do not call checkErrorPacket() if true |
1462 | * @param extraDataCharEncoding the character encoding of the extraData |
1463 | * parameter. |
1464 | * |
1465 | * @return the response packet from the server |
1466 | * |
1467 | * @throws SQLException if an I/O error or SQL error occurs |
1468 | */ |
1469 | |
1470 | final Buffer sendCommand(int command, String extraData, Buffer queryPacket, |
1471 | boolean skipCheck, String extraDataCharEncoding) |
1472 | throws SQLException { |
1473 | // |
1474 | // We cache these locally, per-command, as the checks |
1475 | // for them are in very 'hot' sections of the I/O code |
1476 | // and we save 10-15% in overall performance by doing this... |
1477 | // |
1478 | this.enablePacketDebug = this.connection.getEnablePacketDebug(); |
1479 | this.traceProtocol = this.connection.getTraceProtocol(); |
1480 | this.readPacketSequence = 0; |
1481 | |
1482 | try { |
1483 | |
1484 | checkForOutstandingStreamingData(); |
1485 | |
1486 | // Clear serverStatus...this value is guarded by an |
1487 | // external mutex, as you can only ever be processing |
1488 | // one command at a time |
1489 | this.serverStatus = 0; |
1490 | this.hadWarnings = false; |
1491 | this.warningCount = 0; |
1492 | |
1493 | this.queryNoIndexUsed = false; |
1494 | this.queryBadIndexUsed = false; |
1495 | |
1496 | // |
1497 | // Compressed input stream needs cleared at beginning |
1498 | // of each command execution... |
1499 | // |
1500 | if (this.useCompression) { |
1501 | int bytesLeft = this.mysqlInput.available(); |
1502 | |
1503 | if (bytesLeft > 0) { |
1504 | this.mysqlInput.skip(bytesLeft); |
1505 | } |
1506 | } |
1507 | |
1508 | try { |
1509 | clearInputStream(); |
1510 | |
1511 | // |
1512 | // PreparedStatements construct their own packets, |
1513 | // for efficiency's sake. |
1514 | // |
1515 | // If this is a generic query, we need to re-use |
1516 | // the sending packet. |
1517 | // |
1518 | if (queryPacket == null) { |
1519 | int packLength = HEADER_LENGTH + COMP_HEADER_LENGTH + 1 + |
1520 | ((extraData != null) ? extraData.length() : 0) + 2; |
1521 | |
1522 | if (this.sendPacket == null) { |
1523 | this.sendPacket = new Buffer(packLength); |
1524 | } |
1525 | |
1526 | this.packetSequence = -1; |
1527 | this.readPacketSequence = 0; |
1528 | this.checkPacketSequence = true; |
1529 | this.sendPacket.clear(); |
1530 | |
1531 | this.sendPacket.writeByte((byte) command); |
1532 | |
1533 | if ((command == MysqlDefs.INIT_DB) || |
1534 | (command == MysqlDefs.CREATE_DB) || |
1535 | (command == MysqlDefs.DROP_DB) || |
1536 | (command == MysqlDefs.QUERY) || |
1537 | (command == MysqlDefs.COM_PREPARE)) { |
1538 | if (extraDataCharEncoding == null) { |
1539 | this.sendPacket.writeStringNoNull(extraData); |
1540 | } else { |
1541 | this.sendPacket.writeStringNoNull(extraData, |
1542 | extraDataCharEncoding, |
1543 | this.connection.getServerCharacterEncoding(), |
1544 | this.connection.parserKnowsUnicode(), this.connection); |
1545 | } |
1546 | } else if (command == MysqlDefs.PROCESS_KILL) { |
1547 | long id = new Long(extraData).longValue(); |
1548 | this.sendPacket.writeLong(id); |
1549 | } |
1550 | |
1551 | send(this.sendPacket, this.sendPacket.getPosition()); |
1552 | } else { |
1553 | this.packetSequence = -1; |
1554 | send(queryPacket, queryPacket.getPosition()); // packet passed by PreparedStatement |
1555 | } |
1556 | } catch (SQLException sqlEx) { |
1557 | // don't wrap SQLExceptions |
1558 | throw sqlEx; |
1559 | } catch (Exception ex) { |
1560 | throw new CommunicationsException(this.connection, |
1561 | this.lastPacketSentTimeMs, ex); |
1562 | } |
1563 | |
1564 | Buffer returnPacket = null; |
1565 | |
1566 | if (!skipCheck) { |
1567 | if ((command == MysqlDefs.COM_EXECUTE) || |
1568 | (command == MysqlDefs.COM_RESET_STMT)) { |
1569 | this.readPacketSequence = 0; |
1570 | this.packetSequenceReset = true; |
1571 | } |
1572 | |
1573 | returnPacket = checkErrorPacket(command); |
1574 | } |
1575 | |
1576 | return returnPacket; |
1577 | } catch (IOException ioEx) { |
1578 | throw new CommunicationsException(this.connection, |
1579 | this.lastPacketSentTimeMs, ioEx); |
1580 | } |
1581 | } |
1582 | |
1583 | /** |
1584 | * Send a query stored in a packet directly to the server. |
1585 | * |
1586 | * @param callingStatement DOCUMENT ME! |
1587 | * @param resultSetConcurrency DOCUMENT ME! |
1588 | * @param characterEncoding DOCUMENT ME! |
1589 | * @param queryPacket DOCUMENT ME! |
1590 | * @param maxRows DOCUMENT ME! |
1591 | * @param conn DOCUMENT ME! |
1592 | * @param resultSetType DOCUMENT ME! |
1593 | * @param resultSetConcurrency DOCUMENT ME! |
1594 | * @param streamResults DOCUMENT ME! |
1595 | * @param catalog DOCUMENT ME! |
1596 | * @param unpackFieldInfo should we read MYSQL_FIELD info (if available)? |
1597 | * |
1598 | * @return DOCUMENT ME! |
1599 | * |
1600 | * @throws Exception DOCUMENT ME! |
1601 | */ |
1602 | final ResultSet sqlQueryDirect(Statement callingStatement, String query, |
1603 | String characterEncoding, Buffer queryPacket, int maxRows, |
1604 | Connection conn, int resultSetType, int resultSetConcurrency, |
1605 | boolean streamResults, String catalog, boolean unpackFieldInfo) |
1606 | throws Exception { |
1607 | long queryStartTime = 0; |
1608 | long queryEndTime = 0; |
1609 | |
1610 | if (query != null) { |
1611 | |
1612 | |
1613 | // We don't know exactly how many bytes we're going to get |
1614 | // from the query. Since we're dealing with Unicode, the |
1615 | // max is 2, so pad it (2 * query) + space for headers |
1616 | int packLength = HEADER_LENGTH + 1 + (query.length() * 2) + 2; |
1617 | |
1618 | if (this.sendPacket == null) { |
1619 | this.sendPacket = new Buffer(packLength); |
1620 | } else { |
1621 | this.sendPacket.clear(); |
1622 | } |
1623 | |
1624 | this.sendPacket.writeByte((byte) MysqlDefs.QUERY); |
1625 | |
1626 | if (characterEncoding != null) { |
1627 | if (this.platformDbCharsetMatches) { |
1628 | this.sendPacket.writeStringNoNull(query, characterEncoding, |
1629 | this.connection.getServerCharacterEncoding(), |
1630 | this.connection.parserKnowsUnicode(), |
1631 | this.connection); |
1632 | } else { |
1633 | if (StringUtils.startsWithIgnoreCaseAndWs(query, "LOAD DATA")) { //$NON-NLS-1$ |
1634 | this.sendPacket.writeBytesNoNull(query.getBytes()); |
1635 | } else { |
1636 | this.sendPacket.writeStringNoNull(query, |
1637 | characterEncoding, |
1638 | this.connection.getServerCharacterEncoding(), |
1639 | this.connection.parserKnowsUnicode(), |
1640 | this.connection); |
1641 | } |
1642 | } |
1643 | } else { |
1644 | this.sendPacket.writeStringNoNull(query); |
1645 | } |
1646 | |
1647 | queryPacket = this.sendPacket; |
1648 | } |
1649 | |
1650 | byte[] queryBuf = null; |
1651 | int oldPacketPosition = 0; |
1652 | |
1653 | |
1654 | |
1655 | if (needToGrabQueryFromPacket) { |
1656 | queryBuf = queryPacket.getByteBuffer(); |
1657 | |
1658 | // save the packet position |
1659 | oldPacketPosition = queryPacket.getPosition(); |
1660 | |
1661 | queryStartTime = System.currentTimeMillis(); |
1662 | } |
1663 | |
1664 | // Send query command and sql query string |
1665 | Buffer resultPacket = sendCommand(MysqlDefs.QUERY, null, queryPacket, |
1666 | false, null); |
1667 | |
1668 | long fetchBeginTime = 0; |
1669 | long fetchEndTime = 0; |
1670 | |
1671 | String profileQueryToLog = null; |
1672 | |
1673 | boolean queryWasSlow = false; |
1674 | |
1675 | if (this.profileSql || this.logSlowQueries) { |
1676 | queryEndTime = System.currentTimeMillis(); |
1677 | |
1678 | boolean shouldExtractQuery = false; |
1679 | |
1680 | if (this.profileSql) { |
1681 | shouldExtractQuery = true; |
1682 | } else if (this.logSlowQueries && |
1683 | ((queryEndTime - queryStartTime) > this.connection.getSlowQueryThresholdMillis())) { |
1684 | shouldExtractQuery = true; |
1685 | queryWasSlow = true; |
1686 | } |
1687 | |
1688 | if (shouldExtractQuery) { |
1689 | // Extract the actual query from the network packet |
1690 | boolean truncated = false; |
1691 | |
1692 | int extractPosition = oldPacketPosition; |
1693 | |
1694 | if (oldPacketPosition > this.connection.getMaxQuerySizeToLog()) { |
1695 | extractPosition = this.connection.getMaxQuerySizeToLog() + 5; |
1696 | truncated = true; |
1697 | } |
1698 | |
1699 | profileQueryToLog = new String(queryBuf, 5, |
1700 | (extractPosition - 5)); |
1701 | |
1702 | if (truncated) { |
1703 | profileQueryToLog += Messages.getString("MysqlIO.25"); //$NON-NLS-1$ |
1704 | } |
1705 | } |
1706 | |
1707 | fetchBeginTime = queryEndTime; |
1708 | } |
1709 | |
1710 | if (this.autoGenerateTestcaseScript) { |
1711 | String testcaseQuery = null; |
1712 | |
1713 | if (query != null) { |
1714 | testcaseQuery = query; |
1715 | } else { |
1716 | testcaseQuery = new String(queryBuf, 5, |
1717 | (oldPacketPosition - 5)); |
1718 | } |
1719 | |
1720 | StringBuffer debugBuf = new StringBuffer(testcaseQuery.length() + 32); |
1721 | this.connection.generateConnectionCommentBlock(debugBuf); |
1722 | debugBuf.append(testcaseQuery); |
1723 | debugBuf.append(';'); |
1724 | this.connection.dumpTestcaseQuery(debugBuf.toString()); |
1725 | } |
1726 | |
1727 | ResultSet rs = readAllResults(callingStatement, maxRows, resultSetType, |
1728 | resultSetConcurrency, streamResults, catalog, resultPacket, |
1729 | false, -1L, unpackFieldInfo); |
1730 | |
1731 | if (queryWasSlow) { |
1732 | StringBuffer mesgBuf = new StringBuffer(48 + |
1733 | profileQueryToLog.length()); |
1734 | mesgBuf.append(Messages.getString("MysqlIO.26")); //$NON-NLS-1$ |
1735 | mesgBuf.append(this.connection.getSlowQueryThresholdMillis()); |
1736 | mesgBuf.append(Messages.getString("MysqlIO.26a")); |
1737 | mesgBuf.append((queryEndTime - queryStartTime)); |
1738 | mesgBuf.append(Messages.getString("MysqlIO.27")); //$NON-NLS-1$ |
1739 | mesgBuf.append(profileQueryToLog); |
1740 | |
1741 | ProfileEventSink eventSink = ProfileEventSink.getInstance(this.connection); |
1742 | |
1743 | eventSink.consumeEvent(new ProfilerEvent(ProfilerEvent.TYPE_QUERY, |
1744 | "", catalog, this.connection.getId(), //$NON-NLS-1$ |
1745 | (callingStatement != null) ? callingStatement.getId() : 999, |
1746 | rs.resultId, System.currentTimeMillis(), |
1747 | (int) (queryEndTime - queryStartTime), null, |
1748 | new Throwable(), profileQueryToLog)); |
1749 | |
1750 | //this.connection.getLog().logWarn(mesgBuf.toString()); |
1751 | |
1752 | if (this.connection.getExplainSlowQueries()) { |
1753 | if (oldPacketPosition < MAX_QUERY_SIZE_TO_EXPLAIN) { |
1754 | explainSlowQuery(queryPacket.getBytes(5, |
1755 | (oldPacketPosition - 5)), profileQueryToLog); |
1756 | } else { |
1757 | this.connection.getLog().logWarn(Messages.getString( |
1758 | "MysqlIO.28") //$NON-NLS-1$ |
1759 | +MAX_QUERY_SIZE_TO_EXPLAIN + |
1760 | Messages.getString("MysqlIO.29")); //$NON-NLS-1$ |
1761 | } |
1762 | } |
1763 | } |
1764 | |
1765 | if (this.profileSql) { |
1766 | fetchEndTime = System.currentTimeMillis(); |
1767 | |
1768 | ProfileEventSink eventSink = ProfileEventSink.getInstance(this.connection); |
1769 | |
1770 | eventSink.consumeEvent(new ProfilerEvent(ProfilerEvent.TYPE_QUERY, |
1771 | "", catalog, this.connection.getId(), //$NON-NLS-1$ |
1772 | (callingStatement != null) ? callingStatement.getId() : 999, |
1773 | rs.resultId, System.currentTimeMillis(), |
1774 | (int) (queryEndTime - queryStartTime), null, |
1775 | new Throwable(), profileQueryToLog)); |
1776 | |
1777 | eventSink.consumeEvent(new ProfilerEvent(ProfilerEvent.TYPE_FETCH, |
1778 | "", catalog, this.connection.getId(), //$NON-NLS-1$ |
1779 | (callingStatement != null) ? callingStatement.getId() : 999, |
1780 | rs.resultId, System.currentTimeMillis(), |
1781 | (int) (fetchEndTime - fetchBeginTime), null, |
1782 | new Throwable(), null)); |
1783 | |
1784 | if (this.queryBadIndexUsed) { |
1785 | eventSink.consumeEvent(new ProfilerEvent( |
1786 | ProfilerEvent.TYPE_WARN, "", catalog, //$NON-NLS-1$ |
1787 | this.connection.getId(), |
1788 | (callingStatement != null) ? callingStatement.getId() |
1789 | : 999, rs.resultId, |
1790 | System.currentTimeMillis(), |
1791 | (int) (queryEndTime - queryStartTime), null, |
1792 | new Throwable(), |
1793 | Messages.getString("MysqlIO.33") //$NON-NLS-1$ |
1794 | +profileQueryToLog)); |
1795 | } |
1796 | |
1797 | if (this.queryNoIndexUsed) { |
1798 | eventSink.consumeEvent(new ProfilerEvent( |
1799 | ProfilerEvent.TYPE_WARN, "", catalog, //$NON-NLS-1$ |
1800 | this.connection.getId(), |
1801 | (callingStatement != null) ? callingStatement.getId() |
1802 | : 999, rs.resultId, |
1803 | System.currentTimeMillis(), |
1804 | (int) (queryEndTime - queryStartTime), null, |
1805 | new Throwable(), |
1806 | Messages.getString("MysqlIO.35") //$NON-NLS-1$ |
1807 | +profileQueryToLog)); |
1808 | } |
1809 | } |
1810 | |
1811 | if (this.hadWarnings) { |
1812 | scanForAndThrowDataTruncation(); |
1813 | } |
1814 | |
1815 | return rs; |
1816 | } |
1817 | |
1818 | /** |
1819 | * Returns the host this IO is connected to |
1820 | * |
1821 | * @return DOCUMENT ME! |
1822 | */ |
1823 | String getHost() { |
1824 | return this.host; |
1825 | } |
1826 | |
1827 | /** |
1828 | * Is the version of the MySQL server we are connected to the given |
1829 | * version? |
1830 | * |
1831 | * @param major the major version |
1832 | * @param minor the minor version |
1833 | * @param subminor the subminor version |
1834 | * |
1835 | * @return true if the version of the MySQL server we are connected is the |
1836 | * given version |
1837 | */ |
1838 | boolean isVersion(int major, int minor, int subminor) { |
1839 | return ((major == getServerMajorVersion()) && |
1840 | (minor == getServerMinorVersion()) && |
1841 | (subminor == getServerSubMinorVersion())); |
1842 | } |
1843 | |
1844 | /** |
1845 | * Does the version of the MySQL server we are connected to meet the given |
1846 | * minimums? |
1847 | * |
1848 | * @param major DOCUMENT ME! |
1849 | * @param minor DOCUMENT ME! |
1850 | * @param subminor DOCUMENT ME! |
1851 | * |
1852 | * @return DOCUMENT ME! |
1853 | */ |
1854 | boolean versionMeetsMinimum(int major, int minor, int subminor) { |
1855 | if (getServerMajorVersion() >= major) { |
1856 | if (getServerMajorVersion() == major) { |
1857 | if (getServerMinorVersion() >= minor) { |
1858 | if (getServerMinorVersion() == minor) { |
1859 | return (getServerSubMinorVersion() >= subminor); |
1860 | } |
1861 | |
1862 | // newer than major.minor |
1863 | return true; |
1864 | } |
1865 | |
1866 | // older than major.minor |
1867 | return false; |
1868 | } |
1869 | |
1870 | // newer than major |
1871 | return true; |
1872 | } |
1873 | |
1874 | return false; |
1875 | } |
1876 | |
1877 | /** |
1878 | * Returns the hex dump of the given packet, truncated to |
1879 | * MAX_PACKET_DUMP_LENGTH if packetLength exceeds that value. |
1880 | * |
1881 | * @param packetToDump the packet to dump in hex |
1882 | * @param packetLength the number of bytes to dump |
1883 | * |
1884 | * @return the hex dump of the given packet |
1885 | */ |
1886 | private final static String getPacketDumpToLog(Buffer packetToDump, |
1887 | int packetLength) { |
1888 | if (packetLength < MAX_PACKET_DUMP_LENGTH) { |
1889 | return packetToDump.dump(packetLength); |
1890 | } |
1891 | |
1892 | StringBuffer packetDumpBuf = new StringBuffer(MAX_PACKET_DUMP_LENGTH * 4); |
1893 | packetDumpBuf.append(packetToDump.dump(MAX_PACKET_DUMP_LENGTH)); |
1894 | packetDumpBuf.append(Messages.getString("MysqlIO.36")); //$NON-NLS-1$ |
1895 | packetDumpBuf.append(MAX_PACKET_DUMP_LENGTH); |
1896 | packetDumpBuf.append(Messages.getString("MysqlIO.37")); //$NON-NLS-1$ |
1897 | |
1898 | return packetDumpBuf.toString(); |
1899 | } |
1900 | |
1901 | private final int readFully(InputStream in, byte[] b, int off, int len) |
1902 | throws IOException { |
1903 | if (len < 0) { |
1904 | throw new IndexOutOfBoundsException(); |
1905 | } |
1906 | |
1907 | int n = 0; |
1908 | |
1909 | while (n < len) { |
1910 | int count = in.read(b, off + n, len - n); |
1911 | |
1912 | if (count < 0) { |
1913 | throw new EOFException(); |
1914 | } |
1915 | |
1916 | n += count; |
1917 | } |
1918 | |
1919 | return n; |
1920 | } |
1921 | |
1922 | /** |
1923 | * Reads one result set off of the wire, if the result is actually an |
1924 | * update count, creates an update-count only result set. |
1925 | * |
1926 | * @param callingStatement DOCUMENT ME! |
1927 | * @param maxRows the maximum rows to return in the result set. |
1928 | * @param resultSetType scrollability |
1929 | * @param resultSetConcurrency updatability |
1930 | * @param streamResults should the driver leave the results on the wire, |
1931 | * and read them only when needed? |
1932 | * @param catalog the catalog in use |
1933 | * @param resultPacket the first packet of information in the result set |
1934 | * @param isBinaryEncoded is this result set from a prepared statement? |
1935 | * @param preSentColumnCount do we already know the number of columns? |
1936 | * @param unpackFieldInfo should we unpack the field information? |
1937 | * |
1938 | * @return a result set that either represents the rows, or an update count |
1939 | * |
1940 | * @throws SQLException if an error occurs while reading the rows |
1941 | */ |
1942 | private final ResultSet readResultsForQueryOrUpdate( |
1943 | Statement callingStatement, int maxRows, int resultSetType, |
1944 | int resultSetConcurrency, boolean streamResults, String catalog, |
1945 | Buffer resultPacket, boolean isBinaryEncoded, long preSentColumnCount, |
1946 | boolean unpackFieldInfo) throws SQLException { |
1947 | long columnCount = resultPacket.readFieldLength(); |
1948 | |
1949 | if (columnCount == 0) { |
1950 | return buildResultSetWithUpdates(callingStatement, resultPacket); |
1951 | } else if (columnCount == Buffer.NULL_LENGTH) { |
1952 | String charEncoding = null; |
1953 | |
1954 | if (this.connection.getUseUnicode()) { |
1955 | charEncoding = this.connection.getEncoding(); |
1956 | } |
1957 | |
1958 | String fileName = null; |
1959 | |
1960 | if (this.platformDbCharsetMatches) { |
1961 | fileName = ((charEncoding != null) |
1962 | ? resultPacket.readString(charEncoding) |
1963 | : resultPacket.readString()); |
1964 | } else { |
1965 | fileName = resultPacket.readString(); |
1966 | } |
1967 | |
1968 | return sendFileToServer(callingStatement, fileName); |
1969 | } else { |
1970 | com.mysql.jdbc.ResultSet results = getResultSet(callingStatement, |
1971 | columnCount, maxRows, resultSetType, resultSetConcurrency, |
1972 | streamResults, catalog, isBinaryEncoded, unpackFieldInfo); |
1973 | |
1974 | return results; |
1975 | } |
1976 | } |
1977 | |
1978 | private int alignPacketSize(int a, int l) { |
1979 | return ((((a) + (l)) - 1) & ~((l) - 1)); |
1980 | } |
1981 | |
1982 | private com.mysql.jdbc.ResultSet buildResultSetWithRows( |
1983 | Statement callingStatement, String catalog, |
1984 | com.mysql.jdbc.Field[] fields, RowData rows, int resultSetType, |
1985 | int resultSetConcurrency, boolean isBinaryEncoded) |
1986 | throws SQLException { |
1987 | ResultSet rs = null; |
1988 | |
1989 | switch (resultSetConcurrency) { |
1990 | case java.sql.ResultSet.CONCUR_READ_ONLY: |
1991 | rs = new com.mysql.jdbc.ResultSet(catalog, fields, rows, |
1992 | this.connection, callingStatement); |
1993 | |
1994 | if (isBinaryEncoded) { |
1995 | rs.setBinaryEncoded(); |
1996 | } |
1997 | |
1998 | break; |
1999 | |
2000 | case java.sql.ResultSet.CONCUR_UPDATABLE: |
2001 | rs = new com.mysql.jdbc.UpdatableResultSet(catalog, fields, rows, |
2002 | this.connection, callingStatement); |
2003 | |
2004 | break; |
2005 | |
2006 | default: |
2007 | return new com.mysql.jdbc.ResultSet(catalog, fields, rows, |
2008 | this.connection, callingStatement); |
2009 | } |
2010 | |
2011 | rs.setResultSetType(resultSetType); |
2012 | rs.setResultSetConcurrency(resultSetConcurrency); |
2013 | |
2014 | return rs; |
2015 | } |
2016 | |
2017 | private com.mysql.jdbc.ResultSet buildResultSetWithUpdates( |
2018 | Statement callingStatement, Buffer resultPacket) |
2019 | throws SQLException { |
2020 | long updateCount = -1; |
2021 | long updateID = -1; |
2022 | String info = null; |
2023 | |
2024 | try { |
2025 | if (this.useNewUpdateCounts) { |
2026 | updateCount = resultPacket.newReadLength(); |
2027 | updateID = resultPacket.newReadLength(); |
2028 | } else { |
2029 | updateCount = resultPacket.readLength(); |
2030 | updateID = resultPacket.readLength(); |
2031 | } |
2032 | |
2033 | if (this.use41Extensions) { |
2034 | this.serverStatus = resultPacket.readInt(); |
2035 | |
2036 | this.warningCount = resultPacket.readInt(); |
2037 | |
2038 | if (this.warningCount > 0) { |
2039 | this.hadWarnings = true; // this is a 'latch', it's reset by sendCommand() |
2040 | } |
2041 | |
2042 | resultPacket.readByte(); // advance pointer |
2043 | |
2044 | if (this.profileSql) { |
2045 | this.queryNoIndexUsed = (this.serverStatus & |
2046 | SERVER_QUERY_NO_GOOD_INDEX_USED) != 0; |
2047 | this.queryBadIndexUsed = (this.serverStatus & |
2048 | SERVER_QUERY_NO_INDEX_USED) != 0; |
2049 | } |
2050 | } |
2051 | |
2052 | if (this.connection.isReadInfoMsgEnabled()) { |
2053 | info = resultPacket.readString(); |
2054 | } |
2055 | } catch (Exception ex) { |
2056 | throw SQLError.createSQLException(SQLError.get( |
2057 | SQLError.SQL_STATE_GENERAL_ERROR) + ": " //$NON-NLS-1$ |
2058 | +ex.getClass().getName(), SQLError.SQL_STATE_GENERAL_ERROR, -1); |
2059 | } |
2060 | |
2061 | ResultSet updateRs = new com.mysql.jdbc.ResultSet(updateCount, |
2062 | updateID, this.connection, callingStatement); |
2063 | |
2064 | if (info != null) { |
2065 | updateRs.setServerInfo(info); |
2066 | } |
2067 | |
2068 | return updateRs; |
2069 | } |
2070 | |
2071 | private void checkForOutstandingStreamingData() throws SQLException { |
2072 | if (this.streamingData != null) { |
2073 | if (!this.connection.getClobberStreamingResults()) { |
2074 | throw SQLError.createSQLException(Messages.getString("MysqlIO.39") //$NON-NLS-1$ |
2075 | +this.streamingData + |
2076 | Messages.getString("MysqlIO.40") //$NON-NLS-1$ |
2077 | +Messages.getString("MysqlIO.41") //$NON-NLS-1$ |
2078 | +Messages.getString("MysqlIO.42")); //$NON-NLS-1$ |
2079 | } |
2080 | |
2081 | // Close the result set |
2082 | this.streamingData.getOwner().realClose(false); |
2083 | |
2084 | // clear any pending data.... |
2085 | clearInputStream(); |
2086 | } |
2087 | } |
2088 | |
2089 | private Buffer compressPacket(Buffer packet, int offset, int packetLen, |
2090 | int headerLength) throws SQLException { |
2091 | packet.writeLongInt(packetLen - headerLength); |
2092 | packet.writeByte((byte) 0); // wrapped packet has 0 packet seq. |
2093 | |
2094 | int lengthToWrite = 0; |
2095 | int compressedLength = 0; |
2096 | byte[] bytesToCompress = packet.getByteBuffer(); |
2097 | byte[] compressedBytes = null; |
2098 | int offsetWrite = 0; |
2099 | |
2100 | if (packetLen < MIN_COMPRESS_LEN) { |
2101 | lengthToWrite = packetLen; |
2102 | compressedBytes = packet.getByteBuffer(); |
2103 | compressedLength = 0; |
2104 | offsetWrite = offset; |
2105 | } else { |
2106 | compressedBytes = new byte[bytesToCompress.length * 2]; |
2107 | |
2108 | this.deflater.reset(); |
2109 | this.deflater.setInput(bytesToCompress, offset, packetLen); |
2110 | this.deflater.finish(); |
2111 | |
2112 | int compLen = this.deflater.deflate(compressedBytes); |
2113 | |
2114 | if (compLen > packetLen) { |
2115 | lengthToWrite = packetLen; |
2116 | compressedBytes = packet.getByteBuffer(); |
2117 | compressedLength = 0; |
2118 | offsetWrite = offset; |
2119 | } else { |
2120 | lengthToWrite = compLen; |
2121 | headerLength += COMP_HEADER_LENGTH; |
2122 | compressedLength = packetLen; |
2123 | } |
2124 | } |
2125 | |
2126 | Buffer compressedPacket = new Buffer(packetLen + headerLength); |
2127 | |
2128 | compressedPacket.setPosition(0); |
2129 | compressedPacket.writeLongInt(lengthToWrite); |
2130 | compressedPacket.writeByte(this.packetSequence); |
2131 | compressedPacket.writeLongInt(compressedLength); |
2132 | compressedPacket.writeBytesNoNull(compressedBytes, offsetWrite, |
2133 | lengthToWrite); |
2134 | |
2135 | return compressedPacket; |
2136 | } |
2137 | |
2138 | private final void readServerStatusForResultSets(Buffer rowPacket) |
2139 | throws SQLException { |
2140 | if (this.use41Extensions) { |
2141 | rowPacket.readByte(); // skips the 'last packet' flag |
2142 | |
2143 | this.warningCount = rowPacket.readInt(); |
2144 | |
2145 | if (this.warningCount > 0) { |
2146 | this.hadWarnings = true; // this is a 'latch', it's reset by sendCommand() |
2147 | } |
2148 | |
2149 | this.serverStatus = rowPacket.readInt(); |
2150 | |
2151 | if (this.profileSql) { |
2152 | this.queryNoIndexUsed = (this.serverStatus & |
2153 | SERVER_QUERY_NO_GOOD_INDEX_USED) != 0; |
2154 | this.queryBadIndexUsed = (this.serverStatus & |
2155 | SERVER_QUERY_NO_INDEX_USED) != 0; |
2156 | } |
2157 | } |
2158 | } |
2159 | |
2160 | private SocketFactory createSocketFactory() throws SQLException { |
2161 | try { |
2162 | if (this.socketFactoryClassName == null) { |
2163 | throw SQLError.createSQLException(Messages.getString("MysqlIO.75"), //$NON-NLS-1$ |
2164 | SQLError.SQL_STATE_UNABLE_TO_CONNECT_TO_DATASOURCE); |
2165 | } |
2166 | |
2167 | return (SocketFactory) (Class.forName(this.socketFactoryClassName) |
2168 | .newInstance()); |
2169 | } catch (Exception ex) { |
2170 | throw SQLError.createSQLException(Messages.getString("MysqlIO.76") //$NON-NLS-1$ |
2171 | +this.socketFactoryClassName + |
2172 | Messages.getString("MysqlIO.77") + ex.toString() //$NON-NLS-1$ |
2173 | +(this.connection.getParanoid() ? "" //$NON-NLS-1$ |
2174 | : Util.stackTraceToString(ex)), |
2175 | SQLError.SQL_STATE_UNABLE_TO_CONNECT_TO_DATASOURCE); |
2176 | } |
2177 | } |
2178 | |
2179 | private void enqueuePacketForDebugging(boolean isPacketBeingSent, |
2180 | boolean isPacketReused, int sendLength, byte[] header, Buffer packet) |
2181 | throws SQLException { |
2182 | if ((this.packetDebugRingBuffer.size() + 1) > this.connection.getPacketDebugBufferSize()) { |
2183 | this.packetDebugRingBuffer.removeFirst(); |
2184 | } |
2185 | |
2186 | StringBuffer packetDump = null; |
2187 | |
2188 | if (!isPacketBeingSent) { |
2189 | int bytesToDump = Math.min(MAX_PACKET_DUMP_LENGTH, |
2190 | packet.getBufLength()); |
2191 | |
2192 | Buffer packetToDump = new Buffer(4 + bytesToDump); |
2193 | |
2194 | packetToDump.setPosition(0); |
2195 | packetToDump.writeBytesNoNull(header); |
2196 | packetToDump.writeBytesNoNull(packet.getBytes(0, bytesToDump)); |
2197 | |
2198 | String packetPayload = packetToDump.dump(bytesToDump); |
2199 | |
2200 | packetDump = new StringBuffer(96 + packetPayload.length()); |
2201 | |
2202 | packetDump.append("Server "); |
2203 | |
2204 | if (isPacketReused) { |
2205 | packetDump.append("(re-used)"); |
2206 | } else { |
2207 | packetDump.append("(new)"); |
2208 | } |
2209 | |
2210 | packetDump.append(" "); |
2211 | packetDump.append(packet.toSuperString()); |
2212 | packetDump.append(" --------------------> Client\n"); |
2213 | packetDump.append("\nPacket payload:\n\n"); |
2214 | packetDump.append(packetPayload); |
2215 | |
2216 | if (bytesToDump == MAX_PACKET_DUMP_LENGTH) { |
2217 | packetDump.append("\nNote: Packet of " + packet.getBufLength() + |
2218 | " bytes truncated to " + MAX_PACKET_DUMP_LENGTH + |
2219 | " bytes.\n"); |
2220 | } |
2221 | } else { |
2222 | int bytesToDump = Math.min(MAX_PACKET_DUMP_LENGTH, sendLength); |
2223 | |
2224 | String packetPayload = packet.dump(bytesToDump); |
2225 | |
2226 | packetDump = new StringBuffer(64 + 4 + packetPayload.length()); |
2227 | |
2228 | packetDump.append("Client "); |
2229 | packetDump.append(packet.toSuperString()); |
2230 | packetDump.append("--------------------> Server\n"); |
2231 | packetDump.append("\nPacket payload:\n\n"); |
2232 | packetDump.append(packetPayload); |
2233 | |
2234 | if (bytesToDump == MAX_PACKET_DUMP_LENGTH) { |
2235 | packetDump.append("\nNote: Packet of " + sendLength + |
2236 | " bytes truncated to " + MAX_PACKET_DUMP_LENGTH + |
2237 | " bytes.\n"); |
2238 | } |
2239 | } |
2240 | |
2241 | this.packetDebugRingBuffer.addLast(packetDump); |
2242 | } |
2243 | |
2244 | private RowData readSingleRowSet(long columnCount, int maxRows, |
2245 | int resultSetConcurrency, boolean isBinaryEncoded, Field[] fields) |
2246 | throws SQLException { |
2247 | RowData rowData; |
2248 | ArrayList rows = new ArrayList(); |
2249 | |
2250 | // Now read the data |
2251 | Object rowBytes = nextRow(fields, (int) columnCount, isBinaryEncoded, |
2252 | resultSetConcurrency); |
2253 | |
2254 | int rowCount = 0; |
2255 | |
2256 | if (rowBytes != null) { |
2257 | rows.add(rowBytes); |
2258 | rowCount = 1; |
2259 | } |
2260 | |
2261 | while (rowBytes != null) { |
2262 | rowBytes = nextRow(fields, (int) columnCount, isBinaryEncoded, |
2263 | resultSetConcurrency); |
2264 | |
2265 | if (rowBytes != null) { |
2266 | if ((maxRows == -1) || (rowCount < maxRows)) { |
2267 | rows.add(rowBytes); |
2268 | rowCount++; |
2269 | } |
2270 | } |
2271 | } |
2272 | |
2273 | rowData = new RowDataStatic(rows); |
2274 | |
2275 | return rowData; |
2276 | } |
2277 | |
2278 | /** |
2279 | * Don't hold on to overly-large packets |
2280 | */ |
2281 | private void reclaimLargeReusablePacket() { |
2282 | if ((this.reusablePacket != null) && |
2283 | (this.reusablePacket.getCapacity() > 1048576)) { |
2284 | this.reusablePacket = new Buffer(this.connection.getNetBufferLength()); |
2285 | } |
2286 | } |
2287 | |
2288 | /** |
2289 | * Re-use a packet to read from the MySQL server |
2290 | * |
2291 | * @param reuse DOCUMENT ME! |
2292 | * |
2293 | * @return DOCUMENT ME! |
2294 | * |
2295 | * @throws SQLException DOCUMENT ME! |
2296 | * @throws SQLException DOCUMENT ME! |
2297 | */ |
2298 | private final Buffer reuseAndReadPacket(Buffer reuse) |
2299 | throws SQLException { |
2300 | |
2301 | try { |
2302 | reuse.setWasMultiPacket(false); |
2303 | |
2304 | int lengthRead = readFully(this.mysqlInput, |
2305 | this.packetHeaderBuf, 0, 4); |
2306 | |
2307 | if (lengthRead < 4) { |
2308 | forceClose(); |
2309 | throw new IOException(Messages.getString("MysqlIO.43")); //$NON-NLS-1$ |
2310 | } |
2311 | |
2312 | int packetLength = (this.packetHeaderBuf[0] & 0xff) + |
2313 | ((this.packetHeaderBuf[1] & 0xff) << 8) + |
2314 | ((this.packetHeaderBuf[2] & 0xff) << 16); |
2315 | |
2316 | if (this.traceProtocol) { |
2317 | StringBuffer traceMessageBuf = new StringBuffer(); |
2318 | |
2319 | traceMessageBuf.append(Messages.getString("MysqlIO.44")); //$NON-NLS-1$ |
2320 | traceMessageBuf.append(packetLength); |
2321 | traceMessageBuf.append(Messages.getString("MysqlIO.45")); //$NON-NLS-1$ |
2322 | traceMessageBuf.append(StringUtils.dumpAsHex( |
2323 | this.packetHeaderBuf, 4)); |
2324 | |
2325 | this.connection.getLog().logTrace(traceMessageBuf.toString()); |
2326 | } |
2327 | |
2328 | byte multiPacketSeq = this.packetHeaderBuf[3]; |
2329 | |
2330 | if (!this.packetSequenceReset) { |
2331 | if (this.enablePacketDebug && this.checkPacketSequence) { |
2332 | checkPacketSequencing(multiPacketSeq); |
2333 | } |
2334 | } else { |
2335 | this.packetSequenceReset = false; |
2336 | } |
2337 | |
2338 | this.readPacketSequence = multiPacketSeq; |
2339 | |
2340 | // Set the Buffer to it's original state |
2341 | reuse.setPosition(0); |
2342 | |
2343 | // Do we need to re-alloc the byte buffer? |
2344 | // |
2345 | // Note: We actually check the length of the buffer, |
2346 | // rather than getBufLength(), because getBufLength() is not |
2347 | // necesarily the actual length of the byte array |
2348 | // used as the buffer |
2349 | if (reuse.getByteBuffer().length <= packetLength) { |
2350 | reuse.setByteBuffer(new byte[packetLength + 1]); |
2351 | } |
2352 | |
2353 | // Set the new length |
2354 | reuse.setBufLength(packetLength); |
2355 | |
2356 | // Read the data from the server |
2357 | int numBytesRead = readFully(this.mysqlInput, |
2358 | reuse.getByteBuffer(), 0, packetLength); |
2359 | |
2360 | if (numBytesRead != packetLength) { |
2361 | throw new IOException("Short read, expected " + |
2362 | packetLength + " bytes, only read " + numBytesRead); |
2363 | } |
2364 | |
2365 | if (this.traceProtocol) { |
2366 | StringBuffer traceMessageBuf = new StringBuffer(); |
2367 | |
2368 | traceMessageBuf.append(Messages.getString("MysqlIO.46")); //$NON-NLS-1$ |
2369 | traceMessageBuf.append(getPacketDumpToLog(reuse, |
2370 | packetLength)); |
2371 | |
2372 | this.connection.getLog().logTrace(traceMessageBuf.toString()); |
2373 | } |
2374 | |
2375 | if (this.enablePacketDebug) { |
2376 | enqueuePacketForDebugging(false, true, 0, |
2377 | this.packetHeaderBuf, reuse); |
2378 | } |
2379 | |
2380 | boolean isMultiPacket = false; |
2381 | |
2382 | if (packetLength == this.maxThreeBytes) { |
2383 | reuse.setPosition(this.maxThreeBytes); |
2384 | |
2385 | int packetEndPoint = packetLength; |
2386 | |
2387 | // it's multi-packet |
2388 | isMultiPacket = true; |
2389 | |
2390 | lengthRead = readFully(this.mysqlInput, |
2391 | this.packetHeaderBuf = new byte[4], 0, 4); |
2392 | |
2393 | if (lengthRead < 4) { |
2394 | forceClose(); |
2395 | throw new IOException(Messages.getString("MysqlIO.47")); //$NON-NLS-1$ |
2396 | } |
2397 | |
2398 | packetLength = (this.packetHeaderBuf[0] & 0xff) + |
2399 | ((this.packetHeaderBuf[1] & 0xff) << 8) + |
2400 | ((this.packetHeaderBuf[2] & 0xff) << 16); |
2401 | |
2402 | Buffer multiPacket = new Buffer(packetLength); |
2403 | boolean firstMultiPkt = true; |
2404 | |
2405 | while (true) { |
2406 | if (!firstMultiPkt) { |
2407 | lengthRead = readFully(this.mysqlInput, |
2408 | this.packetHeaderBuf = new byte[4], 0, 4); |
2409 | |
2410 | if (lengthRead < 4) { |
2411 | forceClose(); |
2412 | throw new IOException(Messages.getString( |
2413 | "MysqlIO.48")); //$NON-NLS-1$ |
2414 | } |
2415 | |
2416 | packetLength = (this.packetHeaderBuf[0] & 0xff) + |
2417 | ((this.packetHeaderBuf[1] & 0xff) << 8) + |
2418 | ((this.packetHeaderBuf[2] & 0xff) << 16); |
2419 | } else { |
2420 | firstMultiPkt = false; |
2421 | } |
2422 | |
2423 | if (!this.useNewLargePackets && (packetLength == 1)) { |
2424 | clearInputStream(); |
2425 | |
2426 | break; |
2427 | } else if (packetLength < this.maxThreeBytes) { |
2428 | byte newPacketSeq = this.packetHeaderBuf[3]; |
2429 | |
2430 | if (newPacketSeq != (multiPacketSeq + 1)) { |
2431 | throw new IOException(Messages.getString( |
2432 | "MysqlIO.49")); //$NON-NLS-1$ |
2433 | } |
2434 | |
2435 | multiPacketSeq = newPacketSeq; |
2436 | |
2437 | // Set the Buffer to it's original state |
2438 | multiPacket.setPosition(0); |
2439 | |
2440 | // Set the new length |
2441 | multiPacket.setBufLength(packetLength); |
2442 | |
2443 | // Read the data from the server |
2444 | byte[] byteBuf = multiPacket.getByteBuffer(); |
2445 | int lengthToWrite = packetLength; |
2446 | |
2447 | int bytesRead = readFully(this.mysqlInput, byteBuf, |
2448 | 0, packetLength); |
2449 | |
2450 | if (bytesRead != lengthToWrite) { |
2451 | throw new CommunicationsException(this.connection, |
2452 | this.lastPacketSentTimeMs, |
2453 | SQLError.createSQLException(Messages.getString( |
2454 | "MysqlIO.50") //$NON-NLS-1$ |
2455 | +lengthToWrite + |
2456 | Messages.getString("MysqlIO.51") + |
2457 | bytesRead //$NON-NLS-1$ |
2458 | +".")); //$NON-NLS-1$ |
2459 | } |
2460 | |
2461 | reuse.writeBytesNoNull(byteBuf, 0, lengthToWrite); |
2462 | |
2463 | packetEndPoint += lengthToWrite; |
2464 | |
2465 | break; // end of multipacket sequence |
2466 | } |
2467 | |
2468 | byte newPacketSeq = this.packetHeaderBuf[3]; |
2469 | |
2470 | if (newPacketSeq != (multiPacketSeq + 1)) { |
2471 | throw new IOException(Messages.getString( |
2472 | "MysqlIO.53")); //$NON-NLS-1$ |
2473 | } |
2474 | |
2475 | multiPacketSeq = newPacketSeq; |
2476 | |
2477 | // Set the Buffer to it's original state |
2478 | multiPacket.setPosition(0); |
2479 | |
2480 | // Set the new length |
2481 | multiPacket.setBufLength(packetLength); |
2482 | |
2483 | // Read the data from the server |
2484 | byte[] byteBuf = multiPacket.getByteBuffer(); |
2485 | int lengthToWrite = packetLength; |
2486 | |
2487 | int bytesRead = readFully(this.mysqlInput, byteBuf, 0, |
2488 | packetLength); |
2489 | |
2490 | if (bytesRead != lengthToWrite) { |
2491 | throw new CommunicationsException(this.connection, |
2492 | this.lastPacketSentTimeMs, |
2493 | SQLError.createSQLException(Messages.getString( |
2494 | "MysqlIO.54") //$NON-NLS-1$ |
2495 | +lengthToWrite + |
2496 | Messages.getString("MysqlIO.55") //$NON-NLS-1$ |
2497 | +bytesRead + ".")); //$NON-NLS-1$ |
2498 | } |
2499 | |
2500 | reuse.writeBytesNoNull(byteBuf, 0, lengthToWrite); |
2501 | |
2502 | packetEndPoint += lengthToWrite; |
2503 | } |
2504 | |
2505 | reuse.setPosition(0); |
2506 | reuse.setWasMultiPacket(true); |
2507 | } |
2508 | |
2509 | if (!isMultiPacket) { |
2510 | reuse.getByteBuffer()[packetLength] = 0; // Null-termination |
2511 | } |
2512 | |
2513 | return reuse; |
2514 | } catch (IOException ioEx) { |
2515 | throw new CommunicationsException(this.connection, |
2516 | this.lastPacketSentTimeMs, ioEx); |
2517 | } catch (OutOfMemoryError oom) { |
2518 | try { |
2519 | // _Try_ this |
2520 | clearInputStream(); |
2521 | } finally { |
2522 | try { |
2523 | this.connection.realClose(false, false, true, oom); |
2524 | } finally { |
2525 | throw oom; |
2526 | } |
2527 | } |
2528 | } |
2529 | |
2530 | } |
2531 | |
2532 | /** |
2533 | * @param multiPacketSeq |
2534 | * @throws CommunicationsException |
2535 | */ |
2536 | private void checkPacketSequencing(byte multiPacketSeq) |
2537 | throws CommunicationsException { |
2538 | if ((multiPacketSeq == -128) && (this.readPacketSequence != 127)) { |
2539 | throw new CommunicationsException(this.connection, |
2540 | this.lastPacketSentTimeMs, |
2541 | new IOException("Packets out of order, expected packet # -128, but received packet # " + |
2542 | multiPacketSeq)); |
2543 | } |
2544 | |
2545 | if ((this.readPacketSequence == -1) && (multiPacketSeq != 0)) { |
2546 | throw new CommunicationsException(this.connection, |
2547 | this.lastPacketSentTimeMs, |
2548 | new IOException("Packets out of order, expected packet # -1, but received packet # " + |
2549 | multiPacketSeq)); |
2550 | } |
2551 | |
2552 | if ((multiPacketSeq != -128) && (this.readPacketSequence != -1) && |
2553 | (multiPacketSeq != (this.readPacketSequence + 1))) { |
2554 | throw new CommunicationsException(this.connection, |
2555 | this.lastPacketSentTimeMs, |
2556 | new IOException("Packets out of order, expected packet # " + |
2557 | (this.readPacketSequence + 1) + ", but received packet # " + |
2558 | multiPacketSeq)); |
2559 | } |
2560 | } |
2561 | |
2562 | void enableMultiQueries() throws SQLException { |
2563 | Buffer buf = getSharedSendPacket(); |
2564 | |
2565 | buf.clear(); |
2566 | buf.writeByte((byte)MysqlDefs.COM_SET_OPTION); |
2567 | buf.writeInt(0); |
2568 | sendCommand(MysqlDefs.COM_SET_OPTION, null, buf, false, null); |
2569 | } |
2570 | |
2571 | void disableMultiQueries() throws SQLException { |
2572 | Buffer buf = getSharedSendPacket(); |
2573 | |
2574 | buf.clear(); |
2575 | buf.writeByte((byte)MysqlDefs.COM_SET_OPTION); |
2576 | buf.writeInt(1); |
2577 | sendCommand(MysqlDefs.COM_SET_OPTION, null, buf, false, null); |
2578 | } |
2579 | |
2580 | private final void send(Buffer packet, int packetLen) |
2581 | throws SQLException { |
2582 | try { |
2583 | if (packetLen > this.maxAllowedPacket) { |
2584 | throw new PacketTooBigException(packetLen, this.maxAllowedPacket); |
2585 | } |
2586 | |
2587 | if (this.connection.getMaintainTimeStats()) { |
2588 | this.lastPacketSentTimeMs = System.currentTimeMillis(); |
2589 | } |
2590 | |
2591 | if ((this.serverMajorVersion >= 4) && |
2592 | (packetLen >= this.maxThreeBytes)) { |
2593 | sendSplitPackets(packet); |
2594 | } else { |
2595 | this.packetSequence++; |
2596 | |
2597 | Buffer packetToSend = packet; |
2598 | |
2599 | packetToSend.setPosition(0); |
2600 | |
2601 | if (this.useCompression) { |
2602 | int originalPacketLen = packetLen; |
2603 | |
2604 | packetToSend = compressPacket(packet, 0, packetLen, |
2605 | HEADER_LENGTH); |
2606 | packetLen = packetToSend.getPosition(); |
2607 | |
2608 | if (this.traceProtocol) { |
2609 | StringBuffer traceMessageBuf = new StringBuffer(); |
2610 | |
2611 | traceMessageBuf.append(Messages.getString("MysqlIO.57")); //$NON-NLS-1$ |
2612 | traceMessageBuf.append(getPacketDumpToLog( |
2613 | packetToSend, packetLen)); |
2614 | traceMessageBuf.append(Messages.getString("MysqlIO.58")); //$NON-NLS-1$ |
2615 | traceMessageBuf.append(getPacketDumpToLog(packet, |
2616 | originalPacketLen)); |
2617 | |
2618 | this.connection.getLog().logTrace(traceMessageBuf.toString()); |
2619 | } |
2620 | } else { |
2621 | packetToSend.writeLongInt(packetLen - HEADER_LENGTH); |
2622 | packetToSend.writeByte(this.packetSequence); |
2623 | |
2624 | if (this.traceProtocol) { |
2625 | StringBuffer traceMessageBuf = new StringBuffer(); |
2626 | |
2627 | traceMessageBuf.append(Messages.getString("MysqlIO.59")); //$NON-NLS-1$ |
2628 | traceMessageBuf.append(packetToSend.dump(packetLen)); |
2629 | |
2630 | this.connection.getLog().logTrace(traceMessageBuf.toString()); |
2631 | } |
2632 | } |
2633 | |
2634 | |
2635 | this.mysqlOutput.write(packetToSend.getByteBuffer(), 0, |
2636 | packetLen); |
2637 | this.mysqlOutput.flush(); |
2638 | } |
2639 | |
2640 | if (this.enablePacketDebug) { |
2641 | enqueuePacketForDebugging(true, false, packetLen + 5, |
2642 | this.packetHeaderBuf, packet); |
2643 | } |
2644 | |
2645 | // |
2646 | // Don't hold on to large packets |
2647 | // |
2648 | if (packet == this.sharedSendPacket) { |
2649 | reclaimLargeSharedSendPacket(); |
2650 | } |
2651 | } catch (IOException ioEx) { |
2652 | throw new CommunicationsException(this.connection, |
2653 | this.lastPacketSentTimeMs, ioEx); |
2654 | } |
2655 | } |
2656 | |
2657 | /** |
2658 | * Reads and sends a file to the server for LOAD DATA LOCAL INFILE |
2659 | * |
2660 | * @param callingStatement DOCUMENT ME! |
2661 | * @param fileName the file name to send. |
2662 | * |
2663 | * @return DOCUMENT ME! |
2664 | * |
2665 | * @throws SQLException DOCUMENT ME! |
2666 | */ |
2667 | private final ResultSet sendFileToServer(Statement callingStatement, |
2668 | String fileName) throws SQLException { |
2669 | |
2670 | Buffer filePacket = (this.loadFileBufRef == null) ? null |
2671 | : (Buffer) (this.loadFileBufRef.get()); |
2672 | |
2673 | int bigPacketLength = Math.min(this.connection.getMaxAllowedPacket() - |
2674 | (HEADER_LENGTH * 3), |
2675 | alignPacketSize(this.connection.getMaxAllowedPacket() - 16, 4096) - |
2676 | (HEADER_LENGTH * 3)); |
2677 | |
2678 | int oneMeg = 1024 * 1024; |
2679 | |
2680 | int smallerPacketSizeAligned = Math.min(oneMeg - (HEADER_LENGTH * 3), |
2681 | alignPacketSize(oneMeg - 16, 4096) - (HEADER_LENGTH * 3)); |
2682 | |
2683 | int packetLength = Math.min(smallerPacketSizeAligned, bigPacketLength); |
2684 | |
2685 | if (filePacket == null) { |
2686 | try { |
2687 | filePacket = new Buffer((packetLength + HEADER_LENGTH)); |
2688 | this.loadFileBufRef = new SoftReference(filePacket); |
2689 | } catch (OutOfMemoryError oom) { |
2690 | throw SQLError.createSQLException("Could not allocate packet of " + packetLength |
2691 | + " bytes required for LOAD DATA LOCAL INFILE operation." |
2692 | + " Try increasing max heap allocation for JVM or decreasing server variable " |
2693 | + "'max_allowed_packet'", SQLError.SQL_STATE_MEMORY_ALLOCATION_FAILURE); |
2694 | |
2695 | } |
2696 | } |
2697 | |
2698 | filePacket.clear(); |
2699 | send(filePacket, 0); |
2700 | |
2701 | byte[] fileBuf = new byte[packetLength]; |
2702 | |
2703 | BufferedInputStream fileIn = null; |
2704 | |
2705 | try { |
2706 | if (!this.connection.getAllowUrlInLocalInfile()) { |
2707 | fileIn = new BufferedInputStream(new FileInputStream(fileName)); |
2708 | } else { |
2709 | // First look for ':' |
2710 | if (fileName.indexOf(":") != -1) { |
2711 | try { |
2712 | URL urlFromFileName = new URL(fileName); |
2713 | fileIn = new BufferedInputStream(urlFromFileName.openStream()); |
2714 | } catch (MalformedURLException badUrlEx) { |
2715 | // we fall back to trying this as a file input stream |
2716 | fileIn = new BufferedInputStream(new FileInputStream( |
2717 | fileName)); |
2718 | } |
2719 | } else { |
2720 | fileIn = new BufferedInputStream(new FileInputStream( |
2721 | fileName)); |
2722 | } |
2723 | } |
2724 | |
2725 | int bytesRead = 0; |
2726 | |
2727 | while ((bytesRead = fileIn.read(fileBuf)) != -1) { |
2728 | filePacket.clear(); |
2729 | filePacket.writeBytesNoNull(fileBuf, 0, bytesRead); |
2730 | send(filePacket, filePacket.getPosition()); |
2731 | } |
2732 | } catch (IOException ioEx) { |
2733 | StringBuffer messageBuf = new StringBuffer(Messages.getString( |
2734 | "MysqlIO.60")); //$NON-NLS-1$ |
2735 | |
2736 | if (!this.connection.getParanoid()) { |
2737 | messageBuf.append("'"); //$NON-NLS-1$ |
2738 | |
2739 | if (fileName != null) { |
2740 | messageBuf.append(fileName); |
2741 | } |
2742 | |
2743 | messageBuf.append("'"); //$NON-NLS-1$ |
2744 | } |
2745 | |
2746 | messageBuf.append(Messages.getString("MysqlIO.63")); //$NON-NLS-1$ |
2747 | |
2748 | if (!this.connection.getParanoid()) { |
2749 | messageBuf.append(Messages.getString("MysqlIO.64")); //$NON-NLS-1$ |
2750 | messageBuf.append(Util.stackTraceToString(ioEx)); |
2751 | } |
2752 | |
2753 | throw SQLError.createSQLException(messageBuf.toString(), |
2754 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT); |
2755 | } finally { |
2756 | if (fileIn != null) { |
2757 | try { |
2758 | fileIn.close(); |
2759 | } catch (Exception ex) { |
2760 | throw SQLError.createSQLException(Messages.getString("MysqlIO.65"), //$NON-NLS-1$ |
2761 | SQLError.SQL_STATE_GENERAL_ERROR); |
2762 | } |
2763 | |
2764 | fileIn = null; |
2765 | } else { |
2766 | // file open failed, but server needs one packet |
2767 | filePacket.clear(); |
2768 | send(filePacket, filePacket.getPosition()); |
2769 | checkErrorPacket(); // to clear response off of queue |
2770 | } |
2771 | } |
2772 | |
2773 | // send empty packet to mark EOF |
2774 | filePacket.clear(); |
2775 | send(filePacket, filePacket.getPosition()); |
2776 | |
2777 | Buffer resultPacket = checkErrorPacket(); |
2778 | |
2779 | return buildResultSetWithUpdates(callingStatement, resultPacket); |
2780 | } |
2781 | |
2782 | /** |
2783 | * Checks for errors in the reply packet, and if none, returns the reply |
2784 | * packet, ready for reading |
2785 | * |
2786 | * @param command the command being issued (if used) |
2787 | * |
2788 | * @return DOCUMENT ME! |
2789 | * |
2790 | * @throws SQLException if an error packet was received |
2791 | * @throws CommunicationsException DOCUMENT ME! |
2792 | */ |
2793 | private Buffer checkErrorPacket(int command) throws SQLException { |
2794 | int statusCode = 0; |
2795 | Buffer resultPacket = null; |
2796 | this.serverStatus = 0; |
2797 | |
2798 | try { |
2799 | // Check return value, if we get a java.io.EOFException, |
2800 | // the server has gone away. We'll pass it on up the |
2801 | // exception chain and let someone higher up decide |
2802 | // what to do (barf, reconnect, etc). |
2803 | resultPacket = reuseAndReadPacket(this.reusablePacket); |
2804 | statusCode = resultPacket.readByte(); |
2805 | } catch (SQLException sqlEx) { |
2806 | // Don't wrap SQL Exceptions |
2807 | throw sqlEx; |
2808 | } catch (Exception fallThru) { |
2809 | throw new CommunicationsException(this.connection, |
2810 | this.lastPacketSentTimeMs, fallThru); |
2811 | } |
2812 | |
2813 | // Error handling |
2814 | if (statusCode == (byte) 0xff) { |
2815 | String serverErrorMessage; |
2816 | int errno = 2000; |
2817 | |
2818 | if (this.protocolVersion > 9) { |
2819 | errno = resultPacket.readInt(); |
2820 | |
2821 | String xOpen = null; |
2822 | |
2823 | serverErrorMessage = |
2824 | resultPacket.readString(this.connection.getErrorMessageEncoding()); |
2825 | |
2826 | if (serverErrorMessage.startsWith("#")) { //$NON-NLS-1$ |
2827 | |
2828 | // we have an SQLState |
2829 | if (serverErrorMessage.length() > 6) { |
2830 | xOpen = serverErrorMessage.substring(1, 6); |
2831 | serverErrorMessage = serverErrorMessage.substring(6); |
2832 | |
2833 | if (xOpen.equals("HY000")) { //$NON-NLS-1$ |
2834 | xOpen = SQLError.mysqlToSqlState(errno, |
2835 | this.connection.getUseSqlStateCodes()); |
2836 | } |
2837 | } else { |
2838 | xOpen = SQLError.mysqlToSqlState(errno, |
2839 | this.connection.getUseSqlStateCodes()); |
2840 | } |
2841 | } else { |
2842 | xOpen = SQLError.mysqlToSqlState(errno, |
2843 | this.connection.getUseSqlStateCodes()); |
2844 | } |
2845 | |
2846 | clearInputStream(); |
2847 | |
2848 | StringBuffer errorBuf = new StringBuffer(); |
2849 | |
2850 | String xOpenErrorMessage = SQLError.get(xOpen); |
2851 | |
2852 | if (!this.connection.getUseOnlyServerErrorMessages()) { |
2853 | if (xOpenErrorMessage != null) { |
2854 | errorBuf.append(xOpenErrorMessage); |
2855 | errorBuf.append(Messages.getString("MysqlIO.68")); //$NON-NLS-1$ |
2856 | } |
2857 | } |
2858 | |
2859 | errorBuf.append(serverErrorMessage); |
2860 | |
2861 | if (!this.connection.getUseOnlyServerErrorMessages()) { |
2862 | if (xOpenErrorMessage != null) { |
2863 | errorBuf.append("\""); //$NON-NLS-1$ |
2864 | } |
2865 | } |
2866 | |
2867 | if (xOpen != null && xOpen.startsWith("22")) { |
2868 | throw new MysqlDataTruncation(errorBuf.toString(), 0, true, false, 0, 0); |
2869 | } else { |
2870 | throw SQLError.createSQLException(errorBuf.toString(), xOpen, errno); |
2871 | } |
2872 | } |
2873 | |
2874 | serverErrorMessage = resultPacket.readString( |
2875 | this.connection.getErrorMessageEncoding()); |
2876 | clearInputStream(); |
2877 | |
2878 | if (serverErrorMessage.indexOf(Messages.getString("MysqlIO.70")) != -1) { //$NON-NLS-1$ |
2879 | throw SQLError.createSQLException(SQLError.get( |
2880 | SQLError.SQL_STATE_COLUMN_NOT_FOUND) + |
2881 | ", " //$NON-NLS-1$ |
2882 | +serverErrorMessage, SQLError.SQL_STATE_COLUMN_NOT_FOUND, |
2883 | -1); |
2884 | } |
2885 | |
2886 | StringBuffer errorBuf = new StringBuffer(Messages.getString( |
2887 | "MysqlIO.72")); //$NON-NLS-1$ |
2888 | errorBuf.append(serverErrorMessage); |
2889 | errorBuf.append("\""); //$NON-NLS-1$ |
2890 | |
2891 | throw SQLError.createSQLException(SQLError.get( |
2892 | SQLError.SQL_STATE_GENERAL_ERROR) + ", " //$NON-NLS-1$ |
2893 | +errorBuf.toString(), SQLError.SQL_STATE_GENERAL_ERROR, -1); |
2894 | } |
2895 | |
2896 | return resultPacket; |
2897 | } |
2898 | |
2899 | /** |
2900 | * Sends a large packet to the server as a series of smaller packets |
2901 | * |
2902 | * @param packet DOCUMENT ME! |
2903 | * |
2904 | * @throws SQLException DOCUMENT ME! |
2905 | * @throws CommunicationsException DOCUMENT ME! |
2906 | */ |
2907 | private final void sendSplitPackets(Buffer packet) |
2908 | throws SQLException { |
2909 | try { |
2910 | // |
2911 | // Big packets are handled by splitting them in packets of MAX_THREE_BYTES |
2912 | // length. The last packet is always a packet that is < MAX_THREE_BYTES. |
2913 | // (The last packet may even have a length of 0) |
2914 | // |
2915 | // |
2916 | // NB: Guarded by execSQL. If the driver changes architecture, this |
2917 | // will need to be synchronized in some other way |
2918 | // |
2919 | Buffer headerPacket = (this.splitBufRef == null) ? null |
2920 | : (Buffer) (this.splitBufRef.get()); |
2921 | |
2922 | // |
2923 | // Store this packet in a soft reference...It can be re-used if not GC'd (so clients |
2924 | // that use it frequently won't have to re-alloc the 16M buffer), but we don't |
2925 | // penalize infrequent users of large packets by keeping 16M allocated all of the time |
2926 | // |
2927 | if (headerPacket == null) { |
2928 | headerPacket = new Buffer((this.maxThreeBytes + |
2929 | HEADER_LENGTH)); |
2930 | this.splitBufRef = new SoftReference(headerPacket); |
2931 | } |
2932 | |
2933 | int len = packet.getPosition(); |
2934 | int splitSize = this.maxThreeBytes; |
2935 | int originalPacketPos = HEADER_LENGTH; |
2936 | byte[] origPacketBytes = packet.getByteBuffer(); |
2937 | byte[] headerPacketBytes = headerPacket.getByteBuffer(); |
2938 | |
2939 | while (len >= this.maxThreeBytes) { |
2940 | this.packetSequence++; |
2941 | |
2942 | headerPacket.setPosition(0); |
2943 | headerPacket.writeLongInt(splitSize); |
2944 | |
2945 | headerPacket.writeByte(this.packetSequence); |
2946 | System.arraycopy(origPacketBytes, originalPacketPos, |
2947 | headerPacketBytes, 4, splitSize); |
2948 | |
2949 | int packetLen = splitSize + HEADER_LENGTH; |
2950 | |
2951 | // |
2952 | // Swap a compressed packet in, if we're using |
2953 | // compression... |
2954 | // |
2955 | if (!this.useCompression) { |
2956 | this.mysqlOutput.write(headerPacketBytes, 0, |
2957 | splitSize + HEADER_LENGTH); |
2958 | this.mysqlOutput.flush(); |
2959 | } else { |
2960 | Buffer packetToSend; |
2961 | |
2962 | headerPacket.setPosition(0); |
2963 | packetToSend = compressPacket(headerPacket, HEADER_LENGTH, |
2964 | splitSize, HEADER_LENGTH); |
2965 | packetLen = packetToSend.getPosition(); |
2966 | |
2967 | this.mysqlOutput.write(packetToSend.getByteBuffer(), 0, |
2968 | packetLen); |
2969 | this.mysqlOutput.flush(); |
2970 | } |
2971 | |
2972 | originalPacketPos += splitSize; |
2973 | len -= splitSize; |
2974 | } |
2975 | |
2976 | // |
2977 | // Write last packet |
2978 | // |
2979 | headerPacket.clear(); |
2980 | headerPacket.setPosition(0); |
2981 | headerPacket.writeLongInt(len - HEADER_LENGTH); |
2982 | this.packetSequence++; |
2983 | headerPacket.writeByte(this.packetSequence); |
2984 | |
2985 | if (len != 0) { |
2986 | System.arraycopy(origPacketBytes, originalPacketPos, |
2987 | headerPacketBytes, 4, len - HEADER_LENGTH); |
2988 | } |
2989 | |
2990 | int packetLen = len - HEADER_LENGTH; |
2991 | |
2992 | // |
2993 | // Swap a compressed packet in, if we're using |
2994 | // compression... |
2995 | // |
2996 | if (!this.useCompression) { |
2997 | this.mysqlOutput.write(headerPacket.getByteBuffer(), 0, len); |
2998 | this.mysqlOutput.flush(); |
2999 | } else { |
3000 | Buffer packetToSend; |
3001 | |
3002 | headerPacket.setPosition(0); |
3003 | packetToSend = compressPacket(headerPacket, HEADER_LENGTH, |
3004 | packetLen, HEADER_LENGTH); |
3005 | packetLen = packetToSend.getPosition(); |
3006 | |
3007 | this.mysqlOutput.write(packetToSend.getByteBuffer(), 0, |
3008 | packetLen); |
3009 | this.mysqlOutput.flush(); |
3010 | } |
3011 | } catch (IOException ioEx) { |
3012 | throw new CommunicationsException(this.connection, |
3013 | this.lastPacketSentTimeMs, ioEx); |
3014 | } |
3015 | } |
3016 | |
3017 | private void reclaimLargeSharedSendPacket() { |
3018 | if ((this.sharedSendPacket != null) && |
3019 | (this.sharedSendPacket.getCapacity() > 1048576)) { |
3020 | this.sharedSendPacket = new Buffer(this.connection.getNetBufferLength()); |
3021 | } |
3022 | } |
3023 | |
3024 | boolean hadWarnings() { |
3025 | return this.hadWarnings; |
3026 | } |
3027 | |
3028 | void scanForAndThrowDataTruncation() throws SQLException { |
3029 | if ((this.streamingData == null) && versionMeetsMinimum(4, 1, 0) && |
3030 | this.connection.getJdbcCompliantTruncation()) { |
3031 | SQLError.convertShowWarningsToSQLWarnings(this.connection, |
3032 | this.warningCount, true); |
3033 | } |
3034 | } |
3035 | |
3036 | /** |
3037 | * Secure authentication for 4.1 and newer servers. |
3038 | * |
3039 | * @param packet DOCUMENT ME! |
3040 | * @param packLength |
3041 | * @param user |
3042 | * @param password |
3043 | * @param database DOCUMENT ME! |
3044 | * @param writeClientParams |
3045 | * |
3046 | * @throws SQLException |
3047 | */ |
3048 | private void secureAuth(Buffer packet, int packLength, String user, |
3049 | String password, String database, boolean writeClientParams) |
3050 | throws SQLException { |
3051 | // Passwords can be 16 chars long |
3052 | if (packet == null) { |
3053 | packet = new Buffer(packLength); |
3054 | } |
3055 | |
3056 | if (writeClientParams) { |
3057 | if (this.use41Extensions) { |
3058 | if (versionMeetsMinimum(4, 1, 1)) { |
3059 | packet.writeLong(this.clientParam); |
3060 | packet.writeLong(this.maxThreeBytes); |
3061 | |
3062 | // charset, JDBC will connect as 'latin1', |
3063 | // and use 'SET NAMES' to change to the desired |
3064 | // charset after the connection is established. |
3065 | packet.writeByte((byte) 8); |
3066 | |
3067 | // Set of bytes reserved for future use. |
3068 | packet.writeBytesNoNull(new byte[23]); |
3069 | } else { |
3070 | packet.writeLong(this.clientParam); |
3071 | packet.writeLong(this.maxThreeBytes); |
3072 | } |
3073 | } else { |
3074 | packet.writeInt((int) this.clientParam); |
3075 | packet.writeLongInt(this.maxThreeBytes); |
3076 | } |
3077 | } |
3078 | |
3079 | // User/Password data |
3080 | packet.writeString(user, "Cp1252", this.connection); |
3081 | |
3082 | if (password.length() != 0) { |
3083 | /* Prepare false scramble */ |
3084 | packet.writeString(FALSE_SCRAMBLE, "Cp1252", this.connection); |
3085 | } else { |
3086 | /* For empty password*/ |
3087 | packet.writeString("", "Cp1252", this.connection); //$NON-NLS-1$ |
3088 | } |
3089 | |
3090 | if (this.useConnectWithDb) { |
3091 | packet.writeString(database, "Cp1252", this.connection); |
3092 | } |
3093 | |
3094 | send(packet, packet.getPosition()); |
3095 | |
3096 | // |
3097 | // Don't continue stages if password is empty |
3098 | // |
3099 | if (password.length() > 0) { |
3100 | Buffer b = readPacket(); |
3101 | |
3102 | b.setPosition(0); |
3103 | |
3104 | byte[] replyAsBytes = b.getByteBuffer(); |
3105 | |
3106 | if ((replyAsBytes.length == 25) && (replyAsBytes[0] != 0)) { |
3107 | // Old passwords will have '*' at the first byte of hash */ |
3108 | if (replyAsBytes[0] != '*') { |
3109 | try { |
3110 | /* Build full password hash as it is required to decode scramble */ |
3111 | byte[] buff = Security.passwordHashStage1(password); |
3112 | |
3113 | /* Store copy as we'll need it later */ |
3114 | byte[] passwordHash = new byte[buff.length]; |
3115 | System.arraycopy(buff, 0, passwordHash, 0, buff.length); |
3116 | |
3117 | /* Finally hash complete password using hash we got from server */ |
3118 | passwordHash = Security.passwordHashStage2(passwordHash, |
3119 | replyAsBytes); |
3120 | |
3121 | byte[] packetDataAfterSalt = new byte[replyAsBytes.length - |
3122 | 5]; |
3123 | |
3124 | System.arraycopy(replyAsBytes, 4, packetDataAfterSalt, |
3125 | 0, replyAsBytes.length - 5); |
3126 | |
3127 | byte[] mysqlScrambleBuff = new byte[20]; |
3128 | |
3129 | /* Decypt and store scramble 4 = hash for stage2 */ |
3130 | Security.passwordCrypt(packetDataAfterSalt, |
3131 | mysqlScrambleBuff, passwordHash, 20); |
3132 | |
3133 | /* Encode scramble with password. Recycle buffer */ |
3134 | Security.passwordCrypt(mysqlScrambleBuff, buff, buff, 20); |
3135 | |
3136 | Buffer packet2 = new Buffer(25); |
3137 | packet2.writeBytesNoNull(buff); |
3138 | |
3139 | this.packetSequence++; |
3140 | |
3141 | send(packet2, 24); |
3142 | } catch (NoSuchAlgorithmException nse) { |
3143 | throw SQLError.createSQLException(Messages.getString("MysqlIO.91") //$NON-NLS-1$ |
3144 | +Messages.getString("MysqlIO.92"), //$NON-NLS-1$ |
3145 | SQLError.SQL_STATE_GENERAL_ERROR); |
3146 | } |
3147 | } else { |
3148 | try { |
3149 | /* Create password to decode scramble */ |
3150 | byte[] passwordHash = Security.createKeyFromOldPassword(password); |
3151 | |
3152 | /* Decypt and store scramble 4 = hash for stage2 */ |
3153 | byte[] netReadPos4 = new byte[replyAsBytes.length - 5]; |
3154 | |
3155 | System.arraycopy(replyAsBytes, 4, netReadPos4, 0, |
3156 | replyAsBytes.length - 5); |
3157 | |
3158 | byte[] mysqlScrambleBuff = new byte[20]; |
3159 | |
3160 | /* Decypt and store scramble 4 = hash for stage2 */ |
3161 | Security.passwordCrypt(netReadPos4, mysqlScrambleBuff, |
3162 | passwordHash, 20); |
3163 | |
3164 | /* Finally scramble decoded scramble with password */ |
3165 | String scrambledPassword = Util.scramble(new String( |
3166 | mysqlScrambleBuff), password); |
3167 | |
3168 | Buffer packet2 = new Buffer(packLength); |
3169 | packet2.writeString(scrambledPassword, "Cp1252", this.connection); |
3170 | this.packetSequence++; |
3171 | |
3172 | send(packet2, 24); |
3173 | } catch (NoSuchAlgorithmException nse) { |
3174 | throw SQLError.createSQLException(Messages.getString("MysqlIO.93") //$NON-NLS-1$ |
3175 | +Messages.getString("MysqlIO.94"), //$NON-NLS-1$ |
3176 | SQLError.SQL_STATE_GENERAL_ERROR); |
3177 | } |
3178 | } |
3179 | } |
3180 | } |
3181 | } |
3182 | |
3183 | /** |
3184 | * Secure authentication for 4.1.1 and newer servers. |
3185 | * |
3186 | * @param packet DOCUMENT ME! |
3187 | * @param packLength |
3188 | * @param user |
3189 | * @param password |
3190 | * @param database DOCUMENT ME! |
3191 | * @param writeClientParams |
3192 | * |
3193 | * @throws SQLException |
3194 | */ |
3195 | void secureAuth411(Buffer packet, int packLength, String user, |
3196 | String password, String database, boolean writeClientParams) |
3197 | throws SQLException { |
3198 | // SERVER: public_seed=create_random_string() |
3199 | // send(public_seed) |
3200 | // |
3201 | // CLIENT: recv(public_seed) |
3202 | // hash_stage1=sha1("password") |
3203 | // hash_stage2=sha1(hash_stage1) |
3204 | // reply=xor(hash_stage1, sha1(public_seed,hash_stage2) |
3205 | // |
3206 | // // this three steps are done in scramble() |
3207 | // |
3208 | // send(reply) |
3209 | // |
3210 | // |
3211 | // SERVER: recv(reply) |
3212 | // hash_stage1=xor(reply, sha1(public_seed,hash_stage2)) |
3213 | // candidate_hash2=sha1(hash_stage1) |
3214 | // check(candidate_hash2==hash_stage2) |
3215 | // Passwords can be 16 chars long |
3216 | if (packet == null) { |
3217 | packet = new Buffer(packLength); |
3218 | } |
3219 | |
3220 | if (writeClientParams) { |
3221 | if (this.use41Extensions) { |
3222 | if (versionMeetsMinimum(4, 1, 1)) { |
3223 | packet.writeLong(this.clientParam); |
3224 | packet.writeLong(this.maxThreeBytes); |
3225 | |
3226 | // charset, JDBC will connect as 'latin1', |
3227 | // and use 'SET NAMES' to change to the desired |
3228 | // charset after the connection is established. |
3229 | packet.writeByte((byte) 8); |
3230 | |
3231 | // Set of bytes reserved for future use. |
3232 | packet.writeBytesNoNull(new byte[23]); |
3233 | } else { |
3234 | packet.writeLong(this.clientParam); |
3235 | packet.writeLong(this.maxThreeBytes); |
3236 | } |
3237 | } else { |
3238 | packet.writeInt((int) this.clientParam); |
3239 | packet.writeLongInt(this.maxThreeBytes); |
3240 | } |
3241 | } |
3242 | |
3243 | // User/Password data |
3244 | packet.writeString(user); |
3245 | |
3246 | if (password.length() != 0) { |
3247 | packet.writeByte((byte) 0x14); |
3248 | |
3249 | try { |
3250 | packet.writeBytesNoNull(Security.scramble411(password, this.seed)); |
3251 | } catch (NoSuchAlgorithmException nse) { |
3252 | throw SQLError.createSQLException(Messages.getString("MysqlIO.95") //$NON-NLS-1$ |
3253 | +Messages.getString("MysqlIO.96"), //$NON-NLS-1$ |
3254 | SQLError.SQL_STATE_GENERAL_ERROR); |
3255 | } |
3256 | } else { |
3257 | /* For empty password*/ |
3258 | packet.writeByte((byte) 0); |
3259 | } |
3260 | |
3261 | if (this.useConnectWithDb) { |
3262 | packet.writeString(database); |
3263 | } |
3264 | |
3265 | send(packet, packet.getPosition()); |
3266 | |
3267 | byte savePacketSequence = this.packetSequence++; |
3268 | |
3269 | Buffer reply = checkErrorPacket(); |
3270 | |
3271 | if (reply.isLastDataPacket()) { |
3272 | /* |
3273 | By sending this very specific reply server asks us to send scrambled |
3274 | password in old format. The reply contains scramble_323. |
3275 | */ |
3276 | this.packetSequence = ++savePacketSequence; |
3277 | packet.clear(); |
3278 | |
3279 | String seed323 = this.seed.substring(0, 8); |
3280 | packet.writeString(Util.newCrypt(password, seed323)); |
3281 | send(packet, packet.getPosition()); |
3282 | |
3283 | /* Read what server thinks about out new auth message report */ |
3284 | checkErrorPacket(); |
3285 | } |
3286 | } |
3287 | |
3288 | /** |
3289 | * Un-packs binary-encoded result set data for one row |
3290 | * |
3291 | * @param fields |
3292 | * @param binaryData |
3293 | * @param resultSetConcurrency DOCUMENT ME! |
3294 | * |
3295 | * @return byte[][] |
3296 | * |
3297 | * @throws SQLException DOCUMENT ME! |
3298 | */ |
3299 | private final Object[] unpackBinaryResultSetRow(Field[] fields, |
3300 | Buffer binaryData, int resultSetConcurrency) throws SQLException { |
3301 | int numFields = fields.length; |
3302 | |
3303 | Object[] unpackedRowData = new Object[numFields]; |
3304 | |
3305 | // |
3306 | // Unpack the null bitmask, first |
3307 | // |
3308 | |
3309 | /* Reserve place for null-marker bytes */ |
3310 | int nullCount = (numFields + 9) / 8; |
3311 | |
3312 | byte[] nullBitMask = new byte[nullCount]; |
3313 | |
3314 | for (int i = 0; i < nullCount; i++) { |
3315 | nullBitMask[i] = binaryData.readByte(); |
3316 | } |
3317 | |
3318 | int nullMaskPos = 0; |
3319 | int bit = 4; // first two bits are reserved for future use |
3320 | |
3321 | // |
3322 | // TODO: Benchmark if moving check for updatable result |
3323 | // sets out of loop is worthwhile? |
3324 | // |
3325 | |
3326 | for (int i = 0; i < numFields; i++) { |
3327 | if ((nullBitMask[nullMaskPos] & bit) != 0) { |
3328 | unpackedRowData[i] = null; |
3329 | } else { |
3330 | if (resultSetConcurrency != ResultSet.CONCUR_UPDATABLE) { |
3331 | extractNativeEncodedColumn(binaryData, fields, i, |
3332 | unpackedRowData); |
3333 | } else { |
3334 | unpackNativeEncodedColumn(binaryData, fields, i, |
3335 | unpackedRowData); |
3336 | } |
3337 | } |
3338 | |
3339 | if (((bit <<= 1) & 255) == 0) { |
3340 | bit = 1; /* To next byte */ |
3341 | |
3342 | nullMaskPos++; |
3343 | } |
3344 | } |
3345 | |
3346 | return unpackedRowData; |
3347 | } |
3348 | |
3349 | |
3350 | private final void extractNativeEncodedColumn(Buffer binaryData, |
3351 | Field[] fields, int columnIndex, Object[] unpackedRowData) throws SQLException { |
3352 | Field curField = fields[columnIndex]; |
3353 | |
3354 | switch (curField.getMysqlType()) { |
3355 | case MysqlDefs.FIELD_TYPE_NULL: |
3356 | break; // for dummy binds |
3357 | |
3358 | case MysqlDefs.FIELD_TYPE_TINY: |
3359 | |
3360 | unpackedRowData[columnIndex] = new byte[] {binaryData.readByte()}; |
3361 | break; |
3362 | |
3363 | case MysqlDefs.FIELD_TYPE_SHORT: |
3364 | case MysqlDefs.FIELD_TYPE_YEAR: |
3365 | |
3366 | unpackedRowData[columnIndex] = binaryData.getBytes(2); |
3367 | break; |
3368 | case MysqlDefs.FIELD_TYPE_LONG: |
3369 | case MysqlDefs.FIELD_TYPE_INT24: |
3370 | |
3371 | unpackedRowData[columnIndex] = binaryData.getBytes(4); |
3372 | break; |
3373 | case MysqlDefs.FIELD_TYPE_LONGLONG: |
3374 | |
3375 | unpackedRowData[columnIndex] = binaryData.getBytes(8); |
3376 | break; |
3377 | case MysqlDefs.FIELD_TYPE_FLOAT: |
3378 | |
3379 | unpackedRowData[columnIndex] = binaryData.getBytes(4); |
3380 | break; |
3381 | case MysqlDefs.FIELD_TYPE_DOUBLE: |
3382 | |
3383 | unpackedRowData[columnIndex] = binaryData.getBytes(8); |
3384 | break; |
3385 | case MysqlDefs.FIELD_TYPE_TIME: |
3386 | |
3387 | int length = (int) binaryData.readFieldLength(); |
3388 | |
3389 | unpackedRowData[columnIndex] = binaryData.getBytes(length); |
3390 | |
3391 | break; |
3392 | case MysqlDefs.FIELD_TYPE_DATE: |
3393 | |
3394 | length = (int) binaryData.readFieldLength(); |
3395 | |
3396 | unpackedRowData[columnIndex] = binaryData.getBytes(length); |
3397 | |
3398 | break; |
3399 | case MysqlDefs.FIELD_TYPE_DATETIME: |
3400 | case MysqlDefs.FIELD_TYPE_TIMESTAMP: |
3401 | length = (int) binaryData.readFieldLength(); |
3402 | |
3403 | unpackedRowData[columnIndex] = binaryData.getBytes(length); |
3404 | break; |
3405 | case MysqlDefs.FIELD_TYPE_TINY_BLOB: |
3406 | case MysqlDefs.FIELD_TYPE_MEDIUM_BLOB: |
3407 | case MysqlDefs.FIELD_TYPE_LONG_BLOB: |
3408 | case MysqlDefs.FIELD_TYPE_BLOB: |
3409 | case MysqlDefs.FIELD_TYPE_VAR_STRING: |
3410 | case MysqlDefs.FIELD_TYPE_VARCHAR: |
3411 | case MysqlDefs.FIELD_TYPE_STRING: |
3412 | case MysqlDefs.FIELD_TYPE_DECIMAL: |
3413 | case MysqlDefs.FIELD_TYPE_NEW_DECIMAL: |
3414 | case MysqlDefs.FIELD_TYPE_GEOMETRY: |
3415 | unpackedRowData[columnIndex] = binaryData.readLenByteArray(0); |
3416 | |
3417 | break; |
3418 | case MysqlDefs.FIELD_TYPE_BIT: |
3419 | unpackedRowData[columnIndex] = binaryData.readLenByteArray(0); |
3420 | |
3421 | break; |
3422 | default: |
3423 | throw SQLError.createSQLException(Messages.getString("MysqlIO.97") //$NON-NLS-1$ |
3424 | +curField.getMysqlType() + |
3425 | Messages.getString("MysqlIO.98") + columnIndex + |
3426 | Messages.getString("MysqlIO.99") //$NON-NLS-1$ //$NON-NLS-2$ |
3427 | + fields.length + Messages.getString("MysqlIO.100"), //$NON-NLS-1$ |
3428 | SQLError.SQL_STATE_GENERAL_ERROR); |
3429 | } |
3430 | } |
3431 | |
3432 | private final void unpackNativeEncodedColumn(Buffer binaryData, |
3433 | Field[] fields, int columnIndex, Object[] unpackedRowData) |
3434 | throws SQLException { |
3435 | Field curField = fields[columnIndex]; |
3436 | |
3437 | switch (curField.getMysqlType()) { |
3438 | case MysqlDefs.FIELD_TYPE_NULL: |
3439 | break; // for dummy binds |
3440 | |
3441 | case MysqlDefs.FIELD_TYPE_TINY: |
3442 | |
3443 | byte tinyVal = binaryData.readByte(); |
3444 | |
3445 | if (!curField.isUnsigned()) { |
3446 | unpackedRowData[columnIndex] = String.valueOf(tinyVal) |
3447 | .getBytes(); |
3448 | } else { |
3449 | short unsignedTinyVal = (short) (tinyVal & 0xff); |
3450 | |
3451 | unpackedRowData[columnIndex] = String.valueOf(unsignedTinyVal) |
3452 | .getBytes(); |
3453 | } |
3454 | |
3455 | break; |
3456 | |
3457 | case MysqlDefs.FIELD_TYPE_SHORT: |
3458 | case MysqlDefs.FIELD_TYPE_YEAR: |
3459 | |
3460 | short shortVal = (short) binaryData.readInt(); |
3461 | |
3462 | if (!curField.isUnsigned()) { |
3463 | unpackedRowData[columnIndex] = String.valueOf(shortVal) |
3464 | .getBytes(); |
3465 | } else { |
3466 | int unsignedShortVal = shortVal & 0xffff; |
3467 | |
3468 | unpackedRowData[columnIndex] = String.valueOf(unsignedShortVal) |
3469 | .getBytes(); |
3470 | } |
3471 | |
3472 | break; |
3473 | |
3474 | case MysqlDefs.FIELD_TYPE_LONG: |
3475 | case MysqlDefs.FIELD_TYPE_INT24: |
3476 | |
3477 | int intVal = (int) binaryData.readLong(); |
3478 | |
3479 | if (!curField.isUnsigned()) { |
3480 | unpackedRowData[columnIndex] = String.valueOf(intVal) |
3481 | .getBytes(); |
3482 | } else { |
3483 | long longVal = intVal & 0xffffffffL; |
3484 | |
3485 | unpackedRowData[columnIndex] = String.valueOf(longVal) |
3486 | .getBytes(); |
3487 | } |
3488 | |
3489 | break; |
3490 | |
3491 | case MysqlDefs.FIELD_TYPE_LONGLONG: |
3492 | |
3493 | long longVal = binaryData.readLongLong(); |
3494 | |
3495 | if (!curField.isUnsigned()) { |
3496 | unpackedRowData[columnIndex] = String.valueOf(longVal) |
3497 | .getBytes(); |
3498 | } else { |
3499 | BigInteger asBigInteger = ResultSet.convertLongToUlong(longVal); |
3500 | |
3501 | unpackedRowData[columnIndex] = asBigInteger.toString() |
3502 | .getBytes(); |
3503 | } |
3504 | |
3505 | break; |
3506 | |
3507 | case MysqlDefs.FIELD_TYPE_FLOAT: |
3508 | |
3509 | float floatVal = Float.intBitsToFloat(binaryData.readIntAsLong()); |
3510 | |
3511 | unpackedRowData[columnIndex] = String.valueOf(floatVal).getBytes(); |
3512 | |
3513 | break; |
3514 | |
3515 | case MysqlDefs.FIELD_TYPE_DOUBLE: |
3516 | |
3517 | double doubleVal = Double.longBitsToDouble(binaryData.readLongLong()); |
3518 | |
3519 | unpackedRowData[columnIndex] = String.valueOf(doubleVal).getBytes(); |
3520 | |
3521 | break; |
3522 | |
3523 | case MysqlDefs.FIELD_TYPE_TIME: |
3524 | |
3525 | int length = (int) binaryData.readFieldLength(); |
3526 | |
3527 | int hour = 0; |
3528 | int minute = 0; |
3529 | int seconds = 0; |
3530 | |
3531 | if (length != 0) { |
3532 | binaryData.readByte(); // skip tm->neg |
3533 | binaryData.readLong(); // skip daysPart |
3534 | hour = binaryData.readByte(); |
3535 | minute = binaryData.readByte(); |
3536 | seconds = binaryData.readByte(); |
3537 | |
3538 | if (length > 8) { |
3539 | binaryData.readLong(); // ignore 'secondsPart' |
3540 | } |
3541 | } |
3542 | |
3543 | |
3544 | byte[] timeAsBytes = new byte[8]; |
3545 | |
3546 | timeAsBytes[0] = (byte) Character.forDigit(hour / 10, 10); |
3547 | timeAsBytes[1] = (byte) Character.forDigit(hour % 10, 10); |
3548 | |
3549 | timeAsBytes[2] = (byte) ':'; |
3550 | |
3551 | timeAsBytes[3] = (byte) Character.forDigit(minute / 10, |
3552 | 10); |
3553 | timeAsBytes[4] = (byte) Character.forDigit(minute % 10, |
3554 | 10); |
3555 | |
3556 | timeAsBytes[5] = (byte) ':'; |
3557 | |
3558 | timeAsBytes[6] = (byte) Character.forDigit(seconds / 10, |
3559 | 10); |
3560 | timeAsBytes[7] = (byte) Character.forDigit(seconds % 10, |
3561 | 10); |
3562 | |
3563 | unpackedRowData[columnIndex] = timeAsBytes; |
3564 | |
3565 | |
3566 | break; |
3567 | |
3568 | case MysqlDefs.FIELD_TYPE_DATE: |
3569 | length = (int) binaryData.readFieldLength(); |
3570 | |
3571 | int year = 0; |
3572 | int month = 0; |
3573 | int day = 0; |
3574 | |
3575 | hour = 0; |
3576 | minute = 0; |
3577 | seconds = 0; |
3578 | |
3579 | if (length != 0) { |
3580 | year = binaryData.readInt(); |
3581 | month = binaryData.readByte(); |
3582 | day = binaryData.readByte(); |
3583 | } |
3584 | |
3585 | if ((year == 0) && (month == 0) && (day == 0)) { |
3586 | if (ConnectionProperties.ZERO_DATETIME_BEHAVIOR_CONVERT_TO_NULL.equals( |
3587 | this.connection.getZeroDateTimeBehavior())) { |
3588 | unpackedRowData[columnIndex] = null; |
3589 | |
3590 | break; |
3591 | } else if (ConnectionProperties.ZERO_DATETIME_BEHAVIOR_EXCEPTION.equals( |
3592 | this.connection.getZeroDateTimeBehavior())) { |
3593 | throw SQLError.createSQLException("Value '0000-00-00' can not be represented as java.sql.Date", |
3594 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT); |
3595 | } |
3596 | |
3597 | year = 1; |
3598 | month = 1; |
3599 | day = 1; |
3600 | } |
3601 | |
3602 | |
3603 | byte[] dateAsBytes = new byte[10]; |
3604 | |
3605 | dateAsBytes[0] = (byte) Character.forDigit(year / 1000, |
3606 | 10); |
3607 | |
3608 | int after1000 = year % 1000; |
3609 | |
3610 | dateAsBytes[1] = (byte) Character.forDigit(after1000 / 100, |
3611 | 10); |
3612 | |
3613 | int after100 = after1000 % 100; |
3614 | |
3615 | dateAsBytes[2] = (byte) Character.forDigit(after100 / 10, |
3616 | 10); |
3617 | dateAsBytes[3] = (byte) Character.forDigit(after100 % 10, |
3618 | 10); |
3619 | |
3620 | dateAsBytes[4] = (byte) '-'; |
3621 | |
3622 | dateAsBytes[5] = (byte) Character.forDigit(month / 10, |
3623 | 10); |
3624 | dateAsBytes[6] = (byte) Character.forDigit(month % 10, |
3625 | 10); |
3626 | |
3627 | dateAsBytes[7] = (byte) '-'; |
3628 | |
3629 | dateAsBytes[8] = (byte) Character.forDigit(day / 10, 10); |
3630 | dateAsBytes[9] = (byte) Character.forDigit(day % 10, 10); |
3631 | |
3632 | unpackedRowData[columnIndex] = dateAsBytes; |
3633 | |
3634 | |
3635 | break; |
3636 | |
3637 | case MysqlDefs.FIELD_TYPE_DATETIME: |
3638 | case MysqlDefs.FIELD_TYPE_TIMESTAMP: |
3639 | length = (int) binaryData.readFieldLength(); |
3640 | |
3641 | year = 0; |
3642 | month = 0; |
3643 | day = 0; |
3644 | |
3645 | hour = 0; |
3646 | minute = 0; |
3647 | seconds = 0; |
3648 | |
3649 | int nanos = 0; |
3650 | |
3651 | if (length != 0) { |
3652 | year = binaryData.readInt(); |
3653 | month = binaryData.readByte(); |
3654 | day = binaryData.readByte(); |
3655 | |
3656 | if (length > 4) { |
3657 | hour = binaryData.readByte(); |
3658 | minute = binaryData.readByte(); |
3659 | seconds = binaryData.readByte(); |
3660 | } |
3661 | |
3662 | //if (length > 7) { |
3663 | // nanos = (int)binaryData.readLong(); |
3664 | //} |
3665 | } |
3666 | |
3667 | if ((year == 0) && (month == 0) && (day == 0)) { |
3668 | if (ConnectionProperties.ZERO_DATETIME_BEHAVIOR_CONVERT_TO_NULL.equals( |
3669 | this.connection.getZeroDateTimeBehavior())) { |
3670 | unpackedRowData[columnIndex] = null; |
3671 | |
3672 | break; |
3673 | } else if (ConnectionProperties.ZERO_DATETIME_BEHAVIOR_EXCEPTION.equals( |
3674 | this.connection.getZeroDateTimeBehavior())) { |
3675 | throw SQLError.createSQLException("Value '0000-00-00' can not be represented as java.sql.Timestamp", |
3676 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT); |
3677 | } |
3678 | |
3679 | year = 1; |
3680 | month = 1; |
3681 | day = 1; |
3682 | } |
3683 | |
3684 | |
3685 | int stringLength = 19; |
3686 | |
3687 | byte[] nanosAsBytes = Integer.toString(nanos).getBytes(); |
3688 | |
3689 | stringLength += (1 + nanosAsBytes.length); // '.' + # of digits |
3690 | |
3691 | byte[] datetimeAsBytes = new byte[stringLength]; |
3692 | |
3693 | datetimeAsBytes[0] = (byte) Character.forDigit(year / 1000, |
3694 | 10); |
3695 | |
3696 | after1000 = year % 1000; |
3697 | |
3698 | datetimeAsBytes[1] = (byte) Character.forDigit(after1000 / 100, |
3699 | 10); |
3700 | |
3701 | after100 = after1000 % 100; |
3702 | |
3703 | datetimeAsBytes[2] = (byte) Character.forDigit(after100 / 10, |
3704 | 10); |
3705 | datetimeAsBytes[3] = (byte) Character.forDigit(after100 % 10, |
3706 | 10); |
3707 | |
3708 | datetimeAsBytes[4] = (byte) '-'; |
3709 | |
3710 | datetimeAsBytes[5] = (byte) Character.forDigit(month / 10, |
3711 | 10); |
3712 | datetimeAsBytes[6] = (byte) Character.forDigit(month % 10, |
3713 | 10); |
3714 | |
3715 | datetimeAsBytes[7] = (byte) '-'; |
3716 | |
3717 | datetimeAsBytes[8] = (byte) Character.forDigit(day / 10, |
3718 | 10); |
3719 | datetimeAsBytes[9] = (byte) Character.forDigit(day % 10, |
3720 | 10); |
3721 | |
3722 | datetimeAsBytes[10] = (byte) ' '; |
3723 | |
3724 | datetimeAsBytes[11] = (byte) Character.forDigit(hour / 10, |
3725 | 10); |
3726 | datetimeAsBytes[12] = (byte) Character.forDigit(hour % 10, |
3727 | 10); |
3728 | |
3729 | datetimeAsBytes[13] = (byte) ':'; |
3730 | |
3731 | datetimeAsBytes[14] = (byte) Character.forDigit(minute / 10, |
3732 | 10); |
3733 | datetimeAsBytes[15] = (byte) Character.forDigit(minute % 10, |
3734 | 10); |
3735 | |
3736 | datetimeAsBytes[16] = (byte) ':'; |
3737 | |
3738 | datetimeAsBytes[17] = (byte) Character.forDigit(seconds / 10, |
3739 | 10); |
3740 | datetimeAsBytes[18] = (byte) Character.forDigit(seconds % 10, |
3741 | 10); |
3742 | |
3743 | datetimeAsBytes[19] = (byte) '.'; |
3744 | |
3745 | int nanosOffset = 20; |
3746 | |
3747 | for (int j = 0; j < nanosAsBytes.length; j++) { |
3748 | datetimeAsBytes[nanosOffset + j] = nanosAsBytes[j]; |
3749 | } |
3750 | |
3751 | unpackedRowData[columnIndex] = datetimeAsBytes; |
3752 | |
3753 | |
3754 | break; |
3755 | |
3756 | case MysqlDefs.FIELD_TYPE_TINY_BLOB: |
3757 | case MysqlDefs.FIELD_TYPE_MEDIUM_BLOB: |
3758 | case MysqlDefs.FIELD_TYPE_LONG_BLOB: |
3759 | case MysqlDefs.FIELD_TYPE_BLOB: |
3760 | case MysqlDefs.FIELD_TYPE_VAR_STRING: |
3761 | case MysqlDefs.FIELD_TYPE_STRING: |
3762 | case MysqlDefs.FIELD_TYPE_VARCHAR: |
3763 | case MysqlDefs.FIELD_TYPE_DECIMAL: |
3764 | case MysqlDefs.FIELD_TYPE_NEW_DECIMAL: |
3765 | case MysqlDefs.FIELD_TYPE_BIT: |
3766 | unpackedRowData[columnIndex] = binaryData.readLenByteArray(0); |
3767 | |
3768 | break; |
3769 | |
3770 | default: |
3771 | throw SQLError.createSQLException(Messages.getString("MysqlIO.97") //$NON-NLS-1$ |
3772 | +curField.getMysqlType() + |
3773 | Messages.getString("MysqlIO.98") + columnIndex + |
3774 | Messages.getString("MysqlIO.99") //$NON-NLS-1$ //$NON-NLS-2$ |
3775 | + fields.length + Messages.getString("MysqlIO.100"), //$NON-NLS-1$ |
3776 | SQLError.SQL_STATE_GENERAL_ERROR); |
3777 | } |
3778 | } |
3779 | |
3780 | /** |
3781 | * Optimization to only use one calendar per-session, or calculate it |
3782 | * for each call, depending on user configuration |
3783 | */ |
3784 | private Calendar getCalendarInstanceForSessionOrNew() { |
3785 | if (this.connection.getDynamicCalendars()) { |
3786 | return Calendar.getInstance(); |
3787 | } else { |
3788 | return this.sessionCalendar; |
3789 | } |
3790 | } |
3791 | |
3792 | /** |
3793 | * Negotiates the SSL communications channel used when connecting |
3794 | * to a MySQL server that understands SSL. |
3795 | * |
3796 | * @param user |
3797 | * @param password |
3798 | * @param database |
3799 | * @param packLength |
3800 | * @throws SQLException |
3801 | * @throws CommunicationsException |
3802 | */ |
3803 | private void negotiateSSLConnection(String user, String password, |
3804 | String database, int packLength) |
3805 | throws SQLException, CommunicationsException { |
3806 | if (!ExportControlled.enabled()) { |
3807 | throw new ConnectionFeatureNotAvailableException(this.connection, |
3808 | this.lastPacketSentTimeMs, null); |
3809 | } |
3810 | |
3811 | boolean doSecureAuth = false; |
3812 | |
3813 | if ((this.serverCapabilities & CLIENT_SECURE_CONNECTION) != 0) { |
3814 | this.clientParam |= CLIENT_SECURE_CONNECTION; |
3815 | doSecureAuth = true; |
3816 | } |
3817 | |
3818 | this.clientParam |= CLIENT_SSL; |
3819 | |
3820 | Buffer packet = new Buffer(packLength); |
3821 | |
3822 | if ((this.clientParam & CLIENT_RESERVED) != 0) { |
3823 | packet.writeLong(this.clientParam); |
3824 | } else { |
3825 | packet.writeInt((int) this.clientParam); |
3826 | } |
3827 | |
3828 | send(packet, packet.getPosition()); |
3829 | |
3830 | ExportControlled.transformSocketToSSLSocket(this); |
3831 | |
3832 | packet.clear(); |
3833 | |
3834 | if (doSecureAuth) { |
3835 | if (versionMeetsMinimum(4, 1, 1)) { |
3836 | secureAuth411(null, packLength, user, password, database, true); |
3837 | } else { |
3838 | secureAuth411(null, packLength, user, password, database, true); |
3839 | } |
3840 | } else { |
3841 | if ((this.clientParam & CLIENT_RESERVED) != 0) { |
3842 | packet.writeLong(this.clientParam); |
3843 | packet.writeLong(this.maxThreeBytes); |
3844 | } else { |
3845 | packet.writeInt((int) this.clientParam); |
3846 | packet.writeLongInt(this.maxThreeBytes); |
3847 | } |
3848 | |
3849 | // User/Password data |
3850 | packet.writeString(user); |
3851 | |
3852 | if (this.protocolVersion > 9) { |
3853 | packet.writeString(Util.newCrypt(password, this.seed)); |
3854 | } else { |
3855 | packet.writeString(Util.oldCrypt(password, this.seed)); |
3856 | } |
3857 | |
3858 | if (((this.serverCapabilities & CLIENT_CONNECT_WITH_DB) != 0) && |
3859 | (database != null) && (database.length() > 0)) { |
3860 | packet.writeString(database); |
3861 | } |
3862 | |
3863 | send(packet, packet.getPosition()); |
3864 | } |
3865 | } |
3866 | |
3867 | protected int getServerStatus() { |
3868 | return serverStatus; |
3869 | } |
3870 | |
3871 | protected List fetchRowsViaCursor(List fetchedRows, long statementId, |
3872 | Field[] columnTypes, int fetchSize) throws SQLException { |
3873 | |
3874 | if (fetchedRows == null) { |
3875 | fetchedRows = new ArrayList(fetchSize); |
3876 | } else { |
3877 | fetchedRows.clear(); |
3878 | } |
3879 | |
3880 | this.sharedSendPacket.clear(); |
3881 | |
3882 | this.sharedSendPacket.writeByte((byte) MysqlDefs.COM_FETCH); |
3883 | this.sharedSendPacket.writeLong(statementId); |
3884 | this.sharedSendPacket.writeLong(fetchSize); |
3885 | |
3886 | sendCommand(MysqlDefs.COM_FETCH, null, this.sharedSendPacket, true, |
3887 | null); |
3888 | |
3889 | Object[] row = null; |
3890 | |
3891 | while ((row = nextRow(columnTypes, columnTypes.length, true, |
3892 | ResultSet.CONCUR_READ_ONLY)) != null) { |
3893 | fetchedRows.add(row); |
3894 | } |
3895 | |
3896 | return fetchedRows; |
3897 | } |
3898 | |
3899 | protected long getThreadId() { |
3900 | return threadId; |
3901 | } |
3902 | } |