org.jocean.aliyun.oss.internal.OSSRequestSigner.java Source code

Introduction

Here is the source code for org.jocean.aliyun.oss.internal.OSSRequestSigner.java

Source

package org.jocean.aliyun.oss.internal;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/*
 * 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.
 */

import com.aliyun.oss.ClientException;
import com.aliyun.oss.common.auth.Credentials;
import com.aliyun.oss.common.auth.ServiceSignature;

import io.netty.buffer.ByteBufUtil;
import io.netty.buffer.Unpooled;
import io.netty.handler.codec.http.HttpRequest;
import io.netty.util.CharsetUtil;

public class OSSRequestSigner {

    private static final Logger LOG = LoggerFactory.getLogger(OSSRequestSigner.class);

    /* Note that resource path should not have been url-encoded. */
    private String resourcePath;
    private Credentials creds;

    public OSSRequestSigner(final String resourcePath, final Credentials creds) {
        this.resourcePath = resourcePath;
        this.creds = creds;
    }

    public void sign(final HttpRequest request) throws ClientException {
        String accessKeyId = creds.getAccessKeyId();
        String secretAccessKey = creds.getSecretAccessKey();

        if (accessKeyId.length() > 0 && secretAccessKey.length() > 0) {
            final String canonicalString = SignUtils.buildCanonicalString(request.method().toString(), resourcePath,
                    request, null);

            if (LOG.isDebugEnabled()) {
                LOG.debug("sign: canonicalString is {} AS HEX\n{}", canonicalString, ByteBufUtil
                        .prettyHexDump(Unpooled.wrappedBuffer(canonicalString.getBytes(CharsetUtil.UTF_8))));
            }

            final String signature = ServiceSignature.create().computeSignature(secretAccessKey, canonicalString);

            if (LOG.isDebugEnabled()) {
                LOG.debug("sign: getAccessKeyId {} and signature {}", accessKeyId, signature);
            }

            request.headers().add(OSSHeaders.AUTHORIZATION,
                    OSSUtils.composeRequestAuthorization(accessKeyId, signature));
        }
    }
}