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HADOOP-6579. Provide a mechanism for encoding/decoding Tokens from

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a url-safe string and change the commons-code library to 1.4. (omalley)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@916290 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Owen O'Malley 2010-02-25 14:14:18 +00:00
parent 4eedc77275
commit 831da66493
7 changed files with 164 additions and 5 deletions
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2
.eclipse.templates/.classpath
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@ -7,7 +7,7 @@
<classpathentry kind="var" path="ANT_HOME/lib/ant.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/avro-1.2.0.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/commons-cli-1.2.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/commons-codec-1.3.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/commons-codec-1.4.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/commons-el-1.0.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/commons-httpclient-3.0.1.jar"/>
<classpathentry kind="lib" path="build/ivy/lib/Hadoop-Core/common/commons-logging-1.1.1.jar"/>

3
CHANGES.txt
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@ -161,6 +161,9 @@ Trunk (unreleased changes)
HADOOP-6543. Allows secure clients to talk to unsecure clusters.
(Kan Zhang via ddas)
HADOOP-6579. Provide a mechanism for encoding/decoding Tokens from
a url-safe string and change the commons-code library to 1.4. (omalley)
OPTIMIZATIONS
HADOOP-6467. Improve the performance on HarFileSystem.listStatus(..).

2
ivy/hadoop-core-template.xml
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@ -41,7 +41,7 @@
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.3</version>
<version>1.4</version>
</dependency>
<dependency>
<groupId>commons-net</groupId>

2
ivy/libraries.properties
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@ -23,7 +23,7 @@ checkstyle.version=4.2
commons-cli.version=1.2
commons-cli2.version=2.0-mahout
commons-codec.version=1.3
commons-codec.version=1.4
commons-collections.version=3.1
commons-httpclient.version=3.0.1
commons-lang.version=2.4

119
src/java/org/apache/hadoop/security/token/Token.java
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@ -21,9 +21,15 @@
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.Arrays;
import org.apache.commons.codec.binary.Base64;
import org.apache.hadoop.io.DataInputBuffer;
import org.apache.hadoop.io.DataOutputBuffer;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.io.WritableComparator;
import org.apache.hadoop.io.WritableUtils;
/**
@ -48,6 +54,20 @@ public Token(T id, SecretManager<T> mgr) {
service = new Text();
}
/**
* Construct a token from the components.
* @param identifier the token identifier
* @param password the token's password
* @param kind the kind of token
* @param service the service for this token
*/
public Token(byte[] identifier, byte[] password, Text kind, Text service) {
this.identifier = identifier;
this.password = password;
this.kind = kind;
this.service = service;
}
/**
* Default constructor
*/
@ -123,4 +143,103 @@ public void write(DataOutput out) throws IOException {
kind.write(out);
service.write(out);
}
/**
* Generate a string with the url-quoted base64 encoded serialized form
* of the Writable.
* @param obj the object to serialize
* @return the encoded string
* @throws IOException
*/
private static String encodeWritable(Writable obj) throws IOException {
DataOutputBuffer buf = new DataOutputBuffer();
obj.write(buf);
Base64 encoder = new Base64(0, null, true);
byte[] raw = new byte[buf.getLength()];
System.arraycopy(buf.getData(), 0, raw, 0, buf.getLength());
return encoder.encodeToString(raw);
}
/**
* Modify the writable to the value from the newValue
* @param obj the object to read into
* @param newValue the string with the url-safe base64 encoded bytes
* @throws IOException
*/
private static void decodeWritable(Writable obj,
String newValue) throws IOException {
Base64 decoder = new Base64(0, null, true);
DataInputBuffer buf = new DataInputBuffer();
byte[] decoded = decoder.decode(newValue);
buf.reset(decoded, decoded.length);
obj.readFields(buf);
}
/**
* Encode this token as a url safe string
* @return the encoded string
* @throws IOException
*/
public String encodeToUrlString() throws IOException {
return encodeWritable(this);
}
/**
* Decode the given url safe string into this token.
* @param newValue the encoded string
* @throws IOException
*/
public void decodeFromUrlString(String newValue) throws IOException {
decodeWritable(this, newValue);
}
@SuppressWarnings("unchecked")
@Override
public boolean equals(Object right) {
if (this == right) {
return true;
} else if (right == null || getClass() != right.getClass()) {
return false;
} else {
Token<T> r = (Token<T>) right;
return Arrays.equals(identifier, r.identifier) &&
Arrays.equals(password, r.password) &&
kind.equals(r.kind) &&
service.equals(r.service);
}
}
@Override
public int hashCode() {
return WritableComparator.hashBytes(identifier, identifier.length);
}
private static void addBinaryBuffer(StringBuilder buffer, byte[] bytes) {
for (int idx = 0; idx < bytes.length; idx++) {
// if not the first, put a blank separator in
if (idx != 0) {
buffer.append(' ');
}
String num = Integer.toHexString(0xff & bytes[idx]);
// if it is only one digit, add a leading 0.
if (num.length() < 2) {
buffer.append('0');
}
buffer.append(num);
}
}
@Override
public String toString() {
StringBuilder buffer = new StringBuilder();
buffer.append("Ident: ");
addBinaryBuffer(buffer, identifier);
buffer.append(", Pass: ");
addBinaryBuffer(buffer, password);
buffer.append(", Kind: ");
buffer.append(kind.toString());
buffer.append(", Service: ");
buffer.append(service.toString());
return buffer.toString();
}
}

2
src/test/core/org/apache/hadoop/io/compress/TestCodec.java
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@ -245,7 +245,7 @@ private static Path writeSplitTestFile(FileSystem fs, Random rand,
codec.getClass().getSimpleName());
final Path file = new Path(wd, "test" + codec.getDefaultExtension());
final byte[] b = new byte[REC_SIZE];
final Base64 b64 = new Base64();
final Base64 b64 = new Base64(0, null);
DataOutputStream fout = null;
Compressor cmp = CodecPool.getCompressor(codec);
try {

37
src/test/core/org/apache/hadoop/security/token/TestToken.java
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@ -22,6 +22,7 @@
import java.util.Arrays;
import org.apache.hadoop.io.*;
import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier;
import junit.framework.TestCase;
@ -58,4 +59,40 @@ public void testTokenSerialization() throws IOException {
destToken.readFields(in);
assertTrue(checkEqual(sourceToken, destToken));
}
private static void checkUrlSafe(String str) throws Exception {
int len = str.length();
for(int i=0; i < len; ++i) {
char ch = str.charAt(i);
if (ch == '-') continue;
if (ch == '_') continue;
if (ch >= '0' && ch <= '9') continue;
if (ch >= 'A' && ch <= 'Z') continue;
if (ch >= 'a' && ch <= 'z') continue;
fail("Encoded string " + str +
" has invalid character at position " + i);
}
}
public static void testEncodeWritable() throws Exception {
String[] values = new String[]{"", "a", "bb", "ccc", "dddd", "eeeee",
"ffffff", "ggggggg", "hhhhhhhh", "iiiiiiiii",
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLM" +
"NOPQRSTUVWXYZ01234567890!@#$%^&*()-=_+[]{}|;':,./<>?"};
Token<AbstractDelegationTokenIdentifier> orig;
Token<AbstractDelegationTokenIdentifier> copy =
new Token<AbstractDelegationTokenIdentifier>();
// ensure that for each string the input and output values match
for(int i=0; i< values.length; ++i) {
String val = values[i];
System.out.println("Input = " + val);
orig = new Token<AbstractDelegationTokenIdentifier>(val.getBytes(),
val.getBytes(), new Text(val), new Text(val));
String encode = orig.encodeToUrlString();
copy.decodeFromUrlString(encode);
assertEquals(orig, copy);
checkUrlSafe(encode);
}
}
}