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1   package org.apache.maven.wagon.shared.http;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.net.MalformedURLException;
23  import java.net.URI;
24  import java.net.URISyntaxException;
25  import java.net.URL;
26  
27  import org.apache.http.client.utils.URLEncodedUtils;
28  
29  /**
30   * Encoding utility.
31   *
32   * @since 2.7
33   */
34  public class EncodingUtil
35  {
36      /**
37       * Parses and returns an encoded version of the given URL string.
38       *
39       * @param url Raw/decoded string form of a URL to parse/encode.
40       * @return Parsed/encoded {@link URI} that represents the string form URL passed in.
41       * @throws MalformedURLException
42       * @throws URISyntaxException
43       * @deprecated to be removed with 4.0.0
44       */
45      @Deprecated
46      public static URI encodeURL( String url )
47          throws MalformedURLException, URISyntaxException
48      {
49          URL urlObject = new URL( url );
50  
51          URI uriEncoded =
52              new URI( urlObject.getProtocol(), //
53                       urlObject.getAuthority(), //
54                       urlObject.getPath(), //
55                       urlObject.getQuery(), //
56                       urlObject.getRef() );
57  
58          return uriEncoded;
59      }
60  
61      /**
62       * Parses and returns an encoded version of the given URL string.
63       * Wraps the {@link MalformedURLException} and {@link URISyntaxException} in case the passed URL is invalid.
64       *
65       * @param url Raw/decoded string form of a URL to parse/encode.
66       * @return Parsed/encoded URI (as string) that represents the
67       * @throws IllegalArgumentException in case the URL string is invalid.
68       * @deprecated To be remvoed with 4.0.0
69       */
70      @Deprecated
71      public static String encodeURLToString( String url )
72      {
73          try
74          {
75              return encodeURL( url ).toString();
76          }
77          catch ( Exception e )
78          {
79              throw new IllegalArgumentException( String.format( "Error parsing url: %s", url ), e );
80          }
81      }
82  
83      /**
84       * Parses and returns an encoded version of the given URL string alongside the given path.
85       *
86       * @param baseUrl Base URL to use when constructing the final URL. This has to be a valid URL already.
87       * @param path Additional unencoded path to append at the end of the base path.
88       * @return Composed URL (base + path) already encoded, separating the individual path segments by "/".
89       * @since TODO
90       */
91      public static String encodeURLToString( String baseUrl, String path )
92      {
93          String[] pathSegments = path == null ? new String[0] : path.split( "/" );
94  
95          String encodedUrl = encodeURLToString( baseUrl, pathSegments );
96          if ( path != null && path.endsWith( "/" ) )
97          {
98              return encodedUrl + "/";
99          }
100 
101         return encodedUrl;
102     }
103 
104     /**
105      * Parses and returns an encoded version of the given URL string alongside the given path segments.
106      *
107      * @param baseUrl Base URL to use when constructing the final URL. This has to be a valid URL already.
108      * @param pathSegments Additional unencoded path segments to append at the end of the base path.
109      * @return Composed URL (base + path) already encoded, separating the individual path segments by "/".
110      * @since TODO
111      */
112     public static String encodeURLToString( String baseUrl, String... pathSegments )
113     {
114         StringBuilder url = new StringBuilder( baseUrl );
115 
116         String[] segments = pathSegments == null ? new String[0] : pathSegments;
117 
118         String path = URLEncodedUtils.formatSegments( segments );
119 
120         if ( url.toString().endsWith( "/" ) && !path.isEmpty() )
121         {
122             url.deleteCharAt( url.length() - 1 );
123         }
124 
125         url.append( path );
126 
127         return url.toString();
128     }
129 }