com.ifengxue.http.proxy.BasicAuthInterceptor Maven / Gradle / Ivy

/*
 * Copyright 2019 https://www.ifengxue.com
 *
 * Licensed 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 com.ifengxue.http.proxy;

import com.ifengxue.http.HttpClientException;
import com.ifengxue.http.annotation.BodyType;
import com.ifengxue.http.annotation.ResponseType;
import com.ifengxue.http.executor.HttpExecutor;
import com.ifengxue.http.executor.Request;
import java.lang.reflect.Method;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Optional;
import lombok.NonNull;
import org.apache.commons.codec.binary.Base64;
import org.apache.http.HttpHeaders;

/**
 * http basic auth 拦截器

 * 参考维基百科
 */
public class BasicAuthInterceptor extends InterceptorAdaptor {

  private final String username;
  private final String password;
  private final Charset charset;

  public BasicAuthInterceptor(String username, String password) {
    this(username, password, StandardCharsets.UTF_8);
  }

  /**
   * @param username 用户名
   * @param password 密码
   */
  public BasicAuthInterceptor(@NonNull String username, String password, Charset charset) {
    this.username = username;
    this.password = password;
    this.charset = charset;
  }

  @Override
  public  T beforeRequest(Method method, Request request, BodyType bodyType, ResponseType responseType,
      HttpExecutor executor) throws HttpClientException {
    String base64 = Base64
        .encodeBase64String((username + ":" + Optional.ofNullable(password).orElse("")).getBytes(charset));
    request.addHeader(HttpHeaders.AUTHORIZATION, "Basic " + base64);
    return null;
  }
}