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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC 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.openqa.selenium.net;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.regex.Pattern;
import org.openqa.selenium.internal.Require;

public class Urls {

  private Urls() {
    // Utility class
  }

  /**
   * Encodes the text as an URL using UTF-8.
   *
   * @param value the text too encode
   * @return the encoded URI string
   * @see URLEncoder#encode(java.lang.String, java.lang.String)
   */
  public static String urlEncode(String value) {
    return URLEncoder.encode(value, StandardCharsets.UTF_8);
  }

  public static URL fromUri(URI uri) {
    try {
      return uri.toURL();
    } catch (MalformedURLException e) {
      throw new UncheckedIOException(e);
    }
  }

  /**
   * Convert a string, which may just be a hostname, into a valid {@link URI}. If no scheme is
   * given, it is set to {@code http} by default.
   *
   * 

We prefer to use {@code URI} instead of {@code URL} since the latter requires a scheme * handler to be registered for types, so strings like {@code docker://localhost:1234} would not * generally be a valid {@link URL} but would be a correct {@link URI}. * *

A known limitation is that URI fragments are not handled. In the expected use cases for this * method, that is not a problem. */ public static URI from(String rawUri) { Require.nonNull("URL to convert", rawUri); try { // Things to consider: // * A plain string hostname // * A host represented as an IPv4 address // * A host represented as an IPv6 address // * A host represented as an abbreviated IPv6 address // If there's no colon, then we have a plain hostname int colonIndex = rawUri.indexOf(':'); int slashIndex = rawUri.indexOf('/'); if (slashIndex == -1 && colonIndex == -1) { return createHttpUri(rawUri); } // Check the characters preceding the colon. If they're all numbers // (or there's no preceding character), we're dealing with a short form // ip6 address. if (colonIndex != -1) { if (colonIndex == 0) { return createHttpUri(rawUri); } if (Pattern.matches("\\d+", rawUri.substring(0, colonIndex))) { return createHttpUri(rawUri); } } // If there's a slash immediately after the colon, that's a scheme // and we can just create a URI from that. return new URI(rawUri); } catch (URISyntaxException e) { throw new UncheckedIOException(new IOException(e)); } } private static URI createHttpUri(String rawHost) { int slashIndex = rawHost.indexOf('/'); String host = slashIndex == -1 ? rawHost : rawHost.substring(0, slashIndex); String path = slashIndex == -1 ? null : rawHost.substring(slashIndex); try { return new URI("http", host, path, null); } catch (URISyntaxException e) { throw new UncheckedIOException(new IOException(e)); } } }





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