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/*
 * Copyright 2013-2020 The OpenZipkin Authors
 *
 * 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 brave.http;

import brave.Span;

/** @deprecated Since 5.10, use {@link HttpServerRequest} and {@link HttpServerResponse} */
@Deprecated public abstract class HttpServerAdapter extends HttpAdapter {
  /**
   * @deprecated {@link #parseClientIpAndPort} addresses this functionality. This will be removed in
   * Brave v6.
   */
  @Deprecated public boolean parseClientAddress(Req req, zipkin2.Endpoint.Builder builder) {
    return false;
  }

  /** @see HttpServerRequest#parseClientIpAndPort(Span) */
  public boolean parseClientIpAndPort(Req req, Span span) {
    return parseClientIpFromXForwardedFor(req, span);
  }

  /** @see HttpServerRequest#parseClientIpFromXForwardedFor(Span) */
  public boolean parseClientIpFromXForwardedFor(Req req, Span span) {
    String forwardedFor = requestHeader(req, "X-Forwarded-For");
    if (forwardedFor == null) return false;
    int indexOfComma = forwardedFor.indexOf(',');
    if (indexOfComma != -1) forwardedFor = forwardedFor.substring(0, indexOfComma);
    return span.remoteIpAndPort(forwardedFor, 0);
  }
}