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HDFS-8037. CheckAccess in WebHDFS silently accepts malformed FsActions parameters. Contributed by Walter Su.

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This commit is contained in:
Haohui Mai 2015-05-07 15:25:26 -07:00
parent 767b91cd83
commit 4d9f9e546f
4 changed files with 60 additions and 3 deletions
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2
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/resources/FsActionParam.java
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@ -30,7 +30,7 @@ public class FsActionParam extends StringParam {
/** Default parameter value. */
public static final String DEFAULT = NULL;
private static String FS_ACTION_PATTERN = "[rwx-]{3}";
private static String FS_ACTION_PATTERN = "[r-][w-][x-]";
private static final Domain DOMAIN = new Domain(NAME,
Pattern.compile(FS_ACTION_PATTERN));

3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -648,6 +648,9 @@ Release 2.8.0 - UNRELEASED
HDFS-8321. CacheDirectives and CachePool operations should throw
RetriableException in safemode. (wheat9)
HDFS-8037. CheckAccess in WebHDFS silently accepts malformed FsActions
parameters. (wheat9)
Release 2.7.1 - UNRELEASED
INCOMPATIBLE CHANGES

4
hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/WebHDFS.md
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@ -1690,8 +1690,8 @@ See also: [Proxy Users](#Proxy_Users)
| Description | File system operation read/write/execute |
| Type | String |
| Default Value | null (an invalid value) |
| Valid Values | Strings matching regex pattern  "[rwx-]{3} " |
| Syntax |  "[rwx-]{3} " |
| Valid Values | Strings matching regex pattern  "[r-][w-][x-] " |
| Syntax |  "[r-][w-][x-] " |
See also: [`CHECKACCESS`](#Check_access),

54
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/resources/TestParam.java
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@ -399,4 +399,58 @@ public void testSnapshotNameParam() {
Assert.assertEquals("s1", s1.getValue());
Assert.assertEquals("s2", s2.getValue());
}
@Test
public void testFsActionParam() {
new FsActionParam("rwx");
new FsActionParam("rw-");
new FsActionParam("r-x");
new FsActionParam("-wx");
new FsActionParam("r--");
new FsActionParam("-w-");
new FsActionParam("--x");
new FsActionParam("---");
try {
new FsActionParam("rw");
Assert.fail();
} catch(IllegalArgumentException e) {
LOG.info("EXPECTED: " + e);
}
try {
new FsActionParam("qwx");
Assert.fail();
} catch(IllegalArgumentException e) {
LOG.info("EXPECTED: " + e);
}
try {
new FsActionParam("qrwx");
Assert.fail();
} catch(IllegalArgumentException e) {
LOG.info("EXPECTED: " + e);
}
try {
new FsActionParam("rwxx");
Assert.fail();
} catch(IllegalArgumentException e) {
LOG.info("EXPECTED: " + e);
}
try {
new FsActionParam("xwr");
Assert.fail();
} catch(IllegalArgumentException e) {
LOG.info("EXPECTED: " + e);
}
try {
new FsActionParam("r-w");
Assert.fail();
} catch(IllegalArgumentException e) {
LOG.info("EXPECTED: " + e);
}
}
}