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HADOOP-18014. CallerContext should not include some characters. (#3698)

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Reviewed-by: Viraj Jasani <vjasani@apache.org>
Reviewed-by: Mingliang Liu <liuml07@apache.org>
Reviewed-by: Hui Fei <ferhui@apache.org>

Cherry-picked from 9c887e5b by Owen O'Malley
This commit is contained in:
Takanobu Asanuma 2021-11-25 14:05:04 +09:00 committed by Owen O'Malley
parent 496657c63f
commit 52fb9d7ce2
3 changed files with 40 additions and 13 deletions
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2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/CallerContext.java
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@ -164,8 +164,6 @@ private void checkFieldSeparator(String separator) {
/**
* Whether the field is valid.
* The field should not contain '\t', '\n', '='.
* Because the context could be written to audit log.
* @param field one of the fields in context.
* @return true if the field is not null or empty.
*/

12
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -8512,18 +8512,18 @@ public void logAuditEvent(boolean succeeded, String userName,
callerContext != null &&
callerContext.isContextValid()) {
sb.append("\t").append("callerContext=");
if (callerContext.getContext().length() > callerContextMaxLen) {
sb.append(callerContext.getContext().substring(0,
callerContextMaxLen));
String context = escapeJava(callerContext.getContext());
if (context.length() > callerContextMaxLen) {
sb.append(context, 0, callerContextMaxLen);
} else {
sb.append(callerContext.getContext());
sb.append(context);
}
if (callerContext.getSignature() != null &&
callerContext.getSignature().length > 0 &&
callerContext.getSignature().length <= callerSignatureMaxLen) {
sb.append(":")
.append(new String(callerContext.getSignature(),
CallerContext.SIGNATURE_ENCODING));
.append(escapeJava(new String(callerContext.getSignature(),
CallerContext.SIGNATURE_ENCODING)));
}
}
logAuditMessage(sb.toString());

39
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogger.java
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@ -256,10 +256,9 @@ public void testAuditLoggerWithCallContext() throws IOException {
conf.setBoolean(HADOOP_CALLER_CONTEXT_ENABLED_KEY, true);
conf.setInt(HADOOP_CALLER_CONTEXT_MAX_SIZE_KEY, 128);
conf.setInt(HADOOP_CALLER_CONTEXT_SIGNATURE_MAX_SIZE_KEY, 40);
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
LogCapturer auditlog = LogCapturer.captureLogs(FSNamesystem.auditLog);
try {
try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build()) {
LogCapturer auditlog = LogCapturer.captureLogs(FSNamesystem.auditLog);
cluster.waitClusterUp();
final FileSystem fs = cluster.getFileSystem();
final long time = System.currentTimeMillis();
@ -414,8 +413,8 @@ public void run() {
assertFalse(auditlog.getOutput().contains("callerContext="));
auditlog.clearOutput();
} finally {
cluster.shutdown();
// clear client context
CallerContext.setCurrent(null);
}
}
@ -599,6 +598,36 @@ public void testAuditLogWithRemotePort() throws Exception {
}
}
@Test
public void testCallerContextCharacterEscape() throws IOException {
Configuration conf = new HdfsConfiguration();
conf.setBoolean(HADOOP_CALLER_CONTEXT_ENABLED_KEY, true);
conf.setInt(HADOOP_CALLER_CONTEXT_MAX_SIZE_KEY, 128);
conf.setInt(HADOOP_CALLER_CONTEXT_SIGNATURE_MAX_SIZE_KEY, 40);
try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build()) {
LogCapturer auditlog = LogCapturer.captureLogs(FSNamesystem.auditLog);
cluster.waitClusterUp();
final FileSystem fs = cluster.getFileSystem();
final long time = System.currentTimeMillis();
final Path p = new Path("/");
assertNull(CallerContext.getCurrent());
CallerContext context = new CallerContext.Builder("c1\nc2").append("c3\tc4")
.setSignature("s1\ns2".getBytes(CallerContext.SIGNATURE_ENCODING)).build();
CallerContext.setCurrent(context);
LOG.info("Set current caller context as {}", CallerContext.getCurrent());
fs.setTimes(p, time, time);
assertTrue(auditlog.getOutput().endsWith(
String.format("callerContext=c1\\nc2,c3\\tc4:s1\\ns2%n")));
auditlog.clearOutput();
// clear client context
CallerContext.setCurrent(null);
}
}
public static class DummyAuditLogger implements AuditLogger {
static boolean initialized;