com.stripe.net.HttpURLConnectionClient Maven / Gradle / Ivy

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Stripe Java Bindings
There is a newer version: 28.2.0
// Generated by delombok at Fri Nov 19 19:06:03 EST 2021
package com.stripe.net;

import com.stripe.Stripe;
import com.stripe.exception.ApiConnectionException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Authenticator;
import java.net.HttpURLConnection;
import java.net.PasswordAuthentication;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class HttpURLConnectionClient extends HttpClient {
  /**
   * Initializes a new instance of the {@link HttpURLConnectionClient}.
   */
  public HttpURLConnectionClient() {
    super();
  }

  /**
   * Sends the given request to Stripe's API.
   *
   * @param request the request
   * @return the response
   * @throws ApiConnectionException if an error occurs when sending or receiving
   */
  @Override
  public StripeResponseStream requestStream(StripeRequest request) throws ApiConnectionException {
    try {
      final HttpURLConnection conn = createStripeConnection(request);
      // Calling `getResponseCode()` triggers the request.
      final int responseCode = conn.getResponseCode();
      final HttpHeaders headers = HttpHeaders.of(conn.getHeaderFields());
      final InputStream responseStream = (responseCode >= 200 && responseCode < 300) ? conn.getInputStream() : conn.getErrorStream();
      return new StripeResponseStream(responseCode, headers, responseStream);
    } catch (IOException e) {
      throw new ApiConnectionException(String.format("IOException during API request to Stripe (%s): %s " + "Please check your internet connection and try again. If this problem persists," + "you should check Stripe\'s service status at https://twitter.com/stripestatus," + " or let us know at [email protected].", Stripe.getApiBase(), e.getMessage()), e);
    }
  }

  /**
   * Sends the given request to Stripe's API, and returns a buffered response.
   *
   * @param request the request
   * @return the response
   * @throws ApiConnectionException if an error occurs when sending or receiving
   */
  @Override
  public StripeResponse request(StripeRequest request) throws ApiConnectionException {
    final StripeResponseStream responseStream = requestStream(request);
    try {
      return responseStream.unstream();
    } catch (IOException e) {
      throw new ApiConnectionException(String.format("IOException during API request to Stripe (%s): %s " + "Please check your internet connection and try again. If this problem persists," + "you should check Stripe\'s service status at https://twitter.com/stripestatus," + " or let us know at [email protected].", Stripe.getApiBase(), e.getMessage()), e);
    }
  }

  static HttpHeaders getHeaders(StripeRequest request) {
    Map> userAgentHeadersMap = new HashMap<>();
    userAgentHeadersMap.put("User-Agent", Arrays.asList(buildUserAgentString()));
    userAgentHeadersMap.put("X-Stripe-Client-User-Agent", Arrays.asList(buildXStripeClientUserAgentString()));
    return request.headers().withAdditionalHeaders(userAgentHeadersMap);
  }

  private static HttpURLConnection createStripeConnection(StripeRequest request) throws IOException, ApiConnectionException {
    HttpURLConnection conn = null;
    if (request.options().getConnectionProxy() != null) {
      conn = (HttpURLConnection) request.url().openConnection(request.options().getConnectionProxy());
      Authenticator.setDefault(new Authenticator() {
        @Override
        protected PasswordAuthentication getPasswordAuthentication() {
          return request.options().getProxyCredential();
        }
      });
    } else {
      conn = (HttpURLConnection) request.url().openConnection();
    }
    conn.setConnectTimeout(request.options().getConnectTimeout());
    conn.setReadTimeout(request.options().getReadTimeout());
    conn.setUseCaches(false);
    for (Map.Entry> entry : getHeaders(request).map().entrySet()) {
      conn.setRequestProperty(entry.getKey(), String.join(",", entry.getValue()));
    }
    conn.setRequestMethod(request.method().name());
    if (request.content() != null) {
      conn.setDoOutput(true);
      conn.setRequestProperty("Content-Type", request.content().contentType());
      OutputStream output = conn.getOutputStream();
      try {
        output.write(request.content().byteArrayContent());
      } finally {
        if (java.util.Collections.singletonList(output).get(0) != null) {
          output.close();
        }
      }
    }
    return conn;
  }
}