HDFS-7766. Add a flag to WebHDFS op=CREATE to not respond with a 307 redirect (Ravi Prakash via aw)

This commit is contained in:
Allen Wittenauer 2016-05-23 15:52:01 -07:00
parent 6d043aa4cf
commit 4b0f55b6ea
6 changed files with 271 additions and 32 deletions

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@ -0,0 +1,49 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hdfs.web.resources;
/** Overwrite parameter. */
public class NoRedirectParam extends BooleanParam {
/** Parameter name. */
public static final String NAME = "noredirect";
/** Default parameter value. */
public static final String DEFAULT = FALSE;
private static final Domain DOMAIN = new Domain(NAME);
/**
* Constructor.
* @param value the parameter value.
*/
public NoRedirectParam(final Boolean value) {
super(DOMAIN, value);
}
/**
* Constructor.
* @param str a string representation of the parameter value.
*/
public NoRedirectParam(final String str) {
this(DOMAIN.parse(str));
}
@Override
public String getName() {
return NAME;
}
}

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@ -33,6 +33,7 @@
import org.apache.hadoop.hdfs.web.resources.HttpOpParam;
import org.apache.hadoop.hdfs.web.resources.LengthParam;
import org.apache.hadoop.hdfs.web.resources.NamenodeAddressParam;
import org.apache.hadoop.hdfs.web.resources.NoRedirectParam;
import org.apache.hadoop.hdfs.web.resources.OffsetParam;
import org.apache.hadoop.hdfs.web.resources.OverwriteParam;
import org.apache.hadoop.hdfs.web.resources.PermissionParam;
@ -110,6 +111,10 @@ boolean overwrite() {
return new OverwriteParam(param(OverwriteParam.NAME)).getValue();
}
boolean noredirect() {
return new NoRedirectParam(param(NoRedirectParam.NAME)).getValue();
}
Token<DelegationTokenIdentifier> delegationToken() throws IOException {
String delegation = param(DelegationParam.NAME);
final Token<DelegationTokenIdentifier> token = new

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@ -24,7 +24,12 @@
import static io.netty.handler.codec.http.HttpHeaderNames.CONTENT_TYPE;
import static io.netty.handler.codec.http.HttpHeaderNames.LOCATION;
import static io.netty.handler.codec.http.HttpHeaderValues.CLOSE;
import static io.netty.handler.codec.http.HttpHeaderNames.ACCEPT;
import static io.netty.handler.codec.http.HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS;
import static io.netty.handler.codec.http.HttpHeaderNames.ACCESS_CONTROL_MAX_AGE;
import static io.netty.handler.codec.http.HttpHeaderValues.KEEP_ALIVE;
import static io.netty.handler.codec.http.HttpMethod.GET;
import static io.netty.handler.codec.http.HttpMethod.OPTIONS;
import static io.netty.handler.codec.http.HttpMethod.POST;
import static io.netty.handler.codec.http.HttpMethod.PUT;
import static io.netty.handler.codec.http.HttpResponseStatus.CONTINUE;
@ -59,7 +64,6 @@
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.MD5MD5CRC32FileChecksum;
import org.apache.hadoop.fs.ParentNotDirectoryException;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.client.HdfsDataInputStream;
@ -137,6 +141,9 @@ public void handle(ChannelHandlerContext ctx, HttpRequest req)
} else if(GetOpParam.Op.GETFILECHECKSUM.name().equalsIgnoreCase(op)
&& method == GET) {
onGetFileChecksum(ctx);
} else if(PutOpParam.Op.CREATE.name().equalsIgnoreCase(op)
&& method == OPTIONS) {
allowCORSOnCreate(ctx);
} else {
throw new IllegalArgumentException("Invalid operation " + op);
}
@ -182,6 +189,8 @@ private void onCreate(ChannelHandlerContext ctx)
final URI uri = new URI(HDFS_URI_SCHEME, nnId, path, null, null);
resp.headers().set(LOCATION, uri.toString());
resp.headers().set(CONTENT_LENGTH, 0);
resp.headers().set(ACCESS_CONTROL_ALLOW_ORIGIN, "*");
ctx.pipeline().replace(this, HdfsWriter.class.getSimpleName(),
new HdfsWriter(dfsClient, out, resp));
}
@ -262,6 +271,21 @@ private void onGetFileChecksum(ChannelHandlerContext ctx) throws IOException {
ctx.writeAndFlush(resp).addListener(ChannelFutureListener.CLOSE);
}
//Accept preflighted CORS requests
private void allowCORSOnCreate(ChannelHandlerContext ctx)
throws IOException, URISyntaxException {
DefaultHttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
HttpHeaders headers = response.headers();
headers.set(ACCESS_CONTROL_ALLOW_ORIGIN, "*");
headers.set(ACCESS_CONTROL_ALLOW_HEADERS, ACCEPT);
headers.set(ACCESS_CONTROL_ALLOW_METHODS, PUT);
headers.set(ACCESS_CONTROL_MAX_AGE, 1728000);
headers.set(CONTENT_LENGTH, 0);
headers.set(CONNECTION, KEEP_ALIVE);
ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}
private static void writeContinueHeader(ChannelHandlerContext ctx) {
DefaultHttpResponse r = new DefaultFullHttpResponse(HTTP_1_1, CONTINUE,
Unpooled.EMPTY_BUFFER);

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@ -357,13 +357,16 @@ public Response putRoot(
@QueryParam(ExcludeDatanodesParam.NAME) @DefaultValue(ExcludeDatanodesParam.DEFAULT)
final ExcludeDatanodesParam excludeDatanodes,
@QueryParam(CreateFlagParam.NAME) @DefaultValue(CreateFlagParam.DEFAULT)
final CreateFlagParam createFlagParam
final CreateFlagParam createFlagParam,
@QueryParam(NoRedirectParam.NAME) @DefaultValue(NoRedirectParam.DEFAULT)
final NoRedirectParam noredirect
) throws IOException, InterruptedException {
return put(ugi, delegation, username, doAsUser, ROOT, op, destination,
owner, group, permission, overwrite, bufferSize, replication,
blockSize, modificationTime, accessTime, renameOptions, createParent,
delegationTokenArgument, aclPermission, xattrName, xattrValue,
xattrSetFlag, snapshotName, oldSnapshotName, excludeDatanodes, createFlagParam);
xattrSetFlag, snapshotName, oldSnapshotName, excludeDatanodes,
createFlagParam, noredirect);
}
/** Handle HTTP PUT request. */
@ -423,14 +426,16 @@ public Response put(
@QueryParam(ExcludeDatanodesParam.NAME) @DefaultValue(ExcludeDatanodesParam.DEFAULT)
final ExcludeDatanodesParam excludeDatanodes,
@QueryParam(CreateFlagParam.NAME) @DefaultValue(CreateFlagParam.DEFAULT)
final CreateFlagParam createFlagParam
final CreateFlagParam createFlagParam,
@QueryParam(NoRedirectParam.NAME) @DefaultValue(NoRedirectParam.DEFAULT)
final NoRedirectParam noredirect
) throws IOException, InterruptedException {
init(ugi, delegation, username, doAsUser, path, op, destination, owner,
group, permission, overwrite, bufferSize, replication, blockSize,
modificationTime, accessTime, renameOptions, delegationTokenArgument,
aclPermission, xattrName, xattrValue, xattrSetFlag, snapshotName,
oldSnapshotName, excludeDatanodes, createFlagParam);
oldSnapshotName, excludeDatanodes, createFlagParam, noredirect);
return ugi.doAs(new PrivilegedExceptionAction<Response>() {
@Override
@ -442,7 +447,7 @@ public Response run() throws IOException, URISyntaxException {
modificationTime, accessTime, renameOptions, createParent,
delegationTokenArgument, aclPermission, xattrName, xattrValue,
xattrSetFlag, snapshotName, oldSnapshotName, excludeDatanodes,
createFlagParam);
createFlagParam, noredirect);
} finally {
reset();
}
@ -477,7 +482,8 @@ private Response put(
final SnapshotNameParam snapshotName,
final OldSnapshotNameParam oldSnapshotName,
final ExcludeDatanodesParam exclDatanodes,
final CreateFlagParam createFlagParam
final CreateFlagParam createFlagParam,
final NoRedirectParam noredirectParam
) throws IOException, URISyntaxException {
final Configuration conf = (Configuration)context.getAttribute(JspHelper.CURRENT_CONF);
@ -491,8 +497,14 @@ private Response put(
doAsUser, fullpath, op.getValue(), -1L, blockSize.getValue(conf),
exclDatanodes.getValue(), permission, overwrite, bufferSize,
replication, blockSize, createParent, createFlagParam);
return Response.temporaryRedirect(uri).type(MediaType.APPLICATION_OCTET_STREAM).build();
}
if(!noredirectParam.getValue()) {
return Response.temporaryRedirect(uri)
.type(MediaType.APPLICATION_OCTET_STREAM).build();
} else {
final String js = JsonUtil.toJsonString("Location", uri);
return Response.ok(js).type(MediaType.APPLICATION_JSON).build();
}
}
case MKDIRS:
{
final boolean b = np.mkdirs(fullpath, permission.getFsPermission(), true);
@ -635,10 +647,12 @@ public Response postRoot(
@QueryParam(ExcludeDatanodesParam.NAME) @DefaultValue(ExcludeDatanodesParam.DEFAULT)
final ExcludeDatanodesParam excludeDatanodes,
@QueryParam(NewLengthParam.NAME) @DefaultValue(NewLengthParam.DEFAULT)
final NewLengthParam newLength
final NewLengthParam newLength,
@QueryParam(NoRedirectParam.NAME) @DefaultValue(NoRedirectParam.DEFAULT)
final NoRedirectParam noredirect
) throws IOException, InterruptedException {
return post(ugi, delegation, username, doAsUser, ROOT, op, concatSrcs,
bufferSize, excludeDatanodes, newLength);
bufferSize, excludeDatanodes, newLength, noredirect);
}
/** Handle HTTP POST request. */
@ -664,7 +678,9 @@ public Response post(
@QueryParam(ExcludeDatanodesParam.NAME) @DefaultValue(ExcludeDatanodesParam.DEFAULT)
final ExcludeDatanodesParam excludeDatanodes,
@QueryParam(NewLengthParam.NAME) @DefaultValue(NewLengthParam.DEFAULT)
final NewLengthParam newLength
final NewLengthParam newLength,
@QueryParam(NoRedirectParam.NAME) @DefaultValue(NoRedirectParam.DEFAULT)
final NoRedirectParam noredirect
) throws IOException, InterruptedException {
init(ugi, delegation, username, doAsUser, path, op, concatSrcs, bufferSize,
@ -676,7 +692,7 @@ public Response run() throws IOException, URISyntaxException {
try {
return post(ugi, delegation, username, doAsUser,
path.getAbsolutePath(), op, concatSrcs, bufferSize,
excludeDatanodes, newLength);
excludeDatanodes, newLength, noredirect);
} finally {
reset();
}
@ -694,7 +710,8 @@ private Response post(
final ConcatSourcesParam concatSrcs,
final BufferSizeParam bufferSize,
final ExcludeDatanodesParam excludeDatanodes,
final NewLengthParam newLength
final NewLengthParam newLength,
final NoRedirectParam noredirectParam
) throws IOException, URISyntaxException {
final NameNode namenode = (NameNode)context.getAttribute("name.node");
final NamenodeProtocols np = getRPCServer(namenode);
@ -705,7 +722,13 @@ private Response post(
final URI uri = redirectURI(namenode, ugi, delegation, username,
doAsUser, fullpath, op.getValue(), -1L, -1L,
excludeDatanodes.getValue(), bufferSize);
return Response.temporaryRedirect(uri).type(MediaType.APPLICATION_OCTET_STREAM).build();
if(!noredirectParam.getValue()) {
return Response.temporaryRedirect(uri)
.type(MediaType.APPLICATION_OCTET_STREAM).build();
} else {
final String js = JsonUtil.toJsonString("Location", uri);
return Response.ok(js).type(MediaType.APPLICATION_JSON).build();
}
}
case CONCAT:
{
@ -762,11 +785,13 @@ public Response getRoot(
@QueryParam(TokenKindParam.NAME) @DefaultValue(TokenKindParam.DEFAULT)
final TokenKindParam tokenKind,
@QueryParam(TokenServiceParam.NAME) @DefaultValue(TokenServiceParam.DEFAULT)
final TokenServiceParam tokenService
final TokenServiceParam tokenService,
@QueryParam(NoRedirectParam.NAME) @DefaultValue(NoRedirectParam.DEFAULT)
final NoRedirectParam noredirect
) throws IOException, InterruptedException {
return get(ugi, delegation, username, doAsUser, ROOT, op, offset, length,
renewer, bufferSize, xattrNames, xattrEncoding, excludeDatanodes, fsAction,
tokenKind, tokenService);
tokenKind, tokenService, noredirect);
}
/** Handle HTTP GET request. */
@ -803,7 +828,9 @@ public Response get(
@QueryParam(TokenKindParam.NAME) @DefaultValue(TokenKindParam.DEFAULT)
final TokenKindParam tokenKind,
@QueryParam(TokenServiceParam.NAME) @DefaultValue(TokenServiceParam.DEFAULT)
final TokenServiceParam tokenService
final TokenServiceParam tokenService,
@QueryParam(NoRedirectParam.NAME) @DefaultValue(NoRedirectParam.DEFAULT)
final NoRedirectParam noredirect
) throws IOException, InterruptedException {
init(ugi, delegation, username, doAsUser, path, op, offset, length,
@ -817,7 +844,7 @@ public Response run() throws IOException, URISyntaxException {
return get(ugi, delegation, username, doAsUser,
path.getAbsolutePath(), op, offset, length, renewer, bufferSize,
xattrNames, xattrEncoding, excludeDatanodes, fsAction, tokenKind,
tokenService);
tokenService, noredirect);
} finally {
reset();
}
@ -841,7 +868,8 @@ private Response get(
final ExcludeDatanodesParam excludeDatanodes,
final FsActionParam fsAction,
final TokenKindParam tokenKind,
final TokenServiceParam tokenService
final TokenServiceParam tokenService,
final NoRedirectParam noredirectParam
) throws IOException, URISyntaxException {
final NameNode namenode = (NameNode)context.getAttribute("name.node");
final Configuration conf = (Configuration) context
@ -854,7 +882,13 @@ private Response get(
final URI uri = redirectURI(namenode, ugi, delegation, username,
doAsUser, fullpath, op.getValue(), offset.getValue(), -1L,
excludeDatanodes.getValue(), offset, length, bufferSize);
return Response.temporaryRedirect(uri).type(MediaType.APPLICATION_OCTET_STREAM).build();
if(!noredirectParam.getValue()) {
return Response.temporaryRedirect(uri)
.type(MediaType.APPLICATION_OCTET_STREAM).build();
} else {
final String js = JsonUtil.toJsonString("Location", uri);
return Response.ok(js).type(MediaType.APPLICATION_JSON).build();
}
}
case GET_BLOCK_LOCATIONS:
{
@ -890,7 +924,13 @@ private Response get(
{
final URI uri = redirectURI(namenode, ugi, delegation, username, doAsUser,
fullpath, op.getValue(), -1L, -1L, null);
return Response.temporaryRedirect(uri).type(MediaType.APPLICATION_OCTET_STREAM).build();
if(!noredirectParam.getValue()) {
return Response.temporaryRedirect(uri)
.type(MediaType.APPLICATION_OCTET_STREAM).build();
} else {
final String js = JsonUtil.toJsonString("Location", uri);
return Response.ok(js).type(MediaType.APPLICATION_JSON).build();
}
}
case GETDELEGATIONTOKEN:
{

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@ -121,6 +121,7 @@ WebHDFS REST API
* [Token Kind](#Token_Kind)
* [Token Service](#Token_Service)
* [Username](#Username)
* [NoRedirect](#NoRedirect)
Document Conventions
--------------------
@ -325,15 +326,21 @@ File and Directory Operations
curl -i -X PUT "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=CREATE
[&overwrite=<true |false>][&blocksize=<LONG>][&replication=<SHORT>]
[&permission=<OCTAL>][&buffersize=<INT>]"
[&permission=<OCTAL>][&buffersize=<INT>][&noredirect=<true|false>]"
The request is redirected to a datanode where the file data is to be written:
Usually the request is redirected to a datanode where the file data is to be written.
HTTP/1.1 307 TEMPORARY_REDIRECT
Location: http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=CREATE...
Content-Length: 0
* Step 2: Submit another HTTP PUT request using the URL in the `Location` header with the file data to be written.
However, if you do not want to be automatically redirected, you can set the noredirect flag.
HTTP/1.1 200 OK
Content-Type: application/json
{"Location":"http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=CREATE..."}
* Step 2: Submit another HTTP PUT request using the URL in the `Location` header (or the returned response in case you specified noredirect) with the file data to be written.
curl -i -X PUT -T <LOCAL_FILE> "http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=CREATE..."
@ -351,15 +358,22 @@ See also: [`overwrite`](#Overwrite), [`blocksize`](#Block_Size), [`replication`]
* Step 1: Submit a HTTP POST request without automatically following redirects and without sending the file data.
curl -i -X POST "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=APPEND[&buffersize=<INT>]"
curl -i -X POST "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=APPEND[&buffersize=<INT>][&noredirect=<true|false>]"
The request is redirected to a datanode where the file data is to be appended:
Usually the request is redirected to a datanode where the file data is to be appended:
HTTP/1.1 307 TEMPORARY_REDIRECT
Location: http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=APPEND...
Content-Length: 0
* Step 2: Submit another HTTP POST request using the URL in the `Location` header with the file data to be appended.
However, if you do not want to be automatically redirected, you can set the noredirect flag.
HTTP/1.1 200 OK
Content-Type: application/json
{"Location":"http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=APPEND..."}
* Step 2: Submit another HTTP POST request using the URL in the `Location` header (or the returned response in case you specified noredirect) with the file data to be appended.
curl -i -X POST -T <LOCAL_FILE> "http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=APPEND..."
@ -390,14 +404,20 @@ See also: [`sources`](#Sources), [FileSystem](../../api/org/apache/hadoop/fs/Fil
* Submit a HTTP GET request with automatically following redirects.
curl -i -L "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=OPEN
[&offset=<LONG>][&length=<LONG>][&buffersize=<INT>]"
[&offset=<LONG>][&length=<LONG>][&buffersize=<INT>][&noredirect=<true|false>]"
The request is redirected to a datanode where the file data can be read:
Usually the request is redirected to a datanode where the file data can be read:
HTTP/1.1 307 TEMPORARY_REDIRECT
Location: http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=OPEN...
Content-Length: 0
However if you do not want to be automatically redirected, you can set the noredirect flag.
HTTP/1.1 200 OK
Content-Type: application/json
{"Location":"http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=OPEN..."}
The client follows the redirect to the datanode and receives the file data:
HTTP/1.1 200 OK
@ -618,12 +638,19 @@ See also: [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).getConten
curl -i "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=GETFILECHECKSUM"
The request is redirected to a datanode:
Usually the request is redirected to a datanode:
HTTP/1.1 307 TEMPORARY_REDIRECT
Location: http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=GETFILECHECKSUM...
Content-Length: 0
However, if you do not want to be automatically redirected, you can set the noredirect flag.
HTTP/1.1 200 OK
Content-Type: application/json
{"Location":"http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=GETFILECHECKSUM..."}
The client follows the redirect to the datanode and receives a [`FileChecksum` JSON object](#FileChecksum_JSON_Schema):
HTTP/1.1 200 OK
@ -2043,3 +2070,15 @@ See also: [`GETDELEGATIONTOKEN`](#Get_Delegation_Token)
| Syntax | Any string. |
See also: [Authentication](#Authentication)
### NoRedirect
| Name | `noredirect` |
|:---- |:---- |
| Description | Whether the response should return an HTTP 307 redirect or HTTP 200 OK. See [Create and Write to a File](#Create_and_Write_to_a_File). |
| Type | boolean |
| Default Value | false |
| Valid Values | true |
| Syntax | true |
See also: [Create and Write to a File](#Create_and_Write_to_a_File)

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@ -67,6 +67,7 @@
import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
import org.apache.hadoop.hdfs.web.WebHdfsFileSystem.WebHdfsInputStream;
import org.apache.hadoop.hdfs.web.resources.LengthParam;
import org.apache.hadoop.hdfs.web.resources.NoRedirectParam;
import org.apache.hadoop.hdfs.web.resources.OffsetParam;
import org.apache.hadoop.hdfs.web.resources.Param;
import org.apache.hadoop.io.retry.RetryPolicy;
@ -78,6 +79,8 @@
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.log4j.Level;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import org.junit.Assert;
import org.junit.Test;
import org.mockito.internal.util.reflection.Whitebox;
@ -818,7 +821,7 @@ public void testWebHdfsReadRetries() throws Exception {
final Configuration conf = WebHdfsTestUtil.createConf();
final Path dir = new Path("/testWebHdfsReadRetries");
conf.setBoolean(DFSConfigKeys.DFS_CLIENT_RETRY_POLICY_ENABLED_KEY, true);
conf.setBoolean(HdfsClientConfigKeys.Retry.POLICY_ENABLED_KEY, true);
conf.setInt(DFSConfigKeys.DFS_NAMENODE_SAFEMODE_MIN_DATANODES_KEY, 1);
conf.setInt(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 1024*512);
conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 1);
@ -949,4 +952,83 @@ public RetryAction shouldRetry(Exception e, int retries, int failovers,
webIn.close();
in.close();
}
private void checkResponseContainsLocation(URL url, String TYPE)
throws JSONException, IOException {
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(TYPE);
conn.setInstanceFollowRedirects(false);
String response = IOUtils.toString(conn.getInputStream());
LOG.info("Response was : " + response);
Assert.assertEquals(
"Response wasn't " + HttpURLConnection.HTTP_OK,
HttpURLConnection.HTTP_OK, conn.getResponseCode());
JSONObject responseJson = new JSONObject(response);
Assert.assertTrue("Response didn't give us a location. " + response,
responseJson.has("Location"));
//Test that the DN allows CORS on Create
if(TYPE.equals("CREATE")) {
URL dnLocation = new URL(responseJson.getString("Location"));
HttpURLConnection dnConn = (HttpURLConnection) dnLocation.openConnection();
dnConn.setRequestMethod("OPTIONS");
Assert.assertEquals("Datanode url : " + dnLocation + " didn't allow "
+ "CORS", HttpURLConnection.HTTP_OK, dnConn.getResponseCode());
}
}
@Test
/**
* Test that when "&noredirect=true" is added to operations CREATE, APPEND,
* OPEN, and GETFILECHECKSUM the response (which is usually a 307 temporary
* redirect) is a 200 with JSON that contains the redirected location
*/
public void testWebHdfsNoRedirect() throws Exception {
MiniDFSCluster cluster = null;
final Configuration conf = WebHdfsTestUtil.createConf();
try {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3).build();
LOG.info("Started cluster");
InetSocketAddress addr = cluster.getNameNode().getHttpAddress();
URL url = new URL("http", addr.getHostString(), addr.getPort(),
WebHdfsFileSystem.PATH_PREFIX + "/testWebHdfsNoRedirectCreate" +
"?op=CREATE" + Param.toSortedString("&", new NoRedirectParam(true)));
LOG.info("Sending create request " + url);
checkResponseContainsLocation(url, "PUT");
//Write a file that we can read
final WebHdfsFileSystem fs = WebHdfsTestUtil.getWebHdfsFileSystem(
conf, WebHdfsConstants.WEBHDFS_SCHEME);
final String PATH = "/testWebHdfsNoRedirect";
byte[] CONTENTS = new byte[1024];
RANDOM.nextBytes(CONTENTS);
try (OutputStream os = fs.create(new Path(PATH))) {
os.write(CONTENTS);
}
url = new URL("http", addr.getHostString(), addr.getPort(),
WebHdfsFileSystem.PATH_PREFIX + "/testWebHdfsNoRedirect" +
"?op=OPEN" + Param.toSortedString("&", new NoRedirectParam(true)));
LOG.info("Sending open request " + url);
checkResponseContainsLocation(url, "GET");
url = new URL("http", addr.getHostString(), addr.getPort(),
WebHdfsFileSystem.PATH_PREFIX + "/testWebHdfsNoRedirect" +
"?op=GETFILECHECKSUM" + Param.toSortedString(
"&", new NoRedirectParam(true)));
LOG.info("Sending getfilechecksum request " + url);
checkResponseContainsLocation(url, "GET");
url = new URL("http", addr.getHostString(), addr.getPort(),
WebHdfsFileSystem.PATH_PREFIX + "/testWebHdfsNoRedirect" +
"?op=APPEND" + Param.toSortedString("&", new NoRedirectParam(true)));
LOG.info("Sending append request " + url);
checkResponseContainsLocation(url, "POST");
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}
}