| package org.eclipse.aether.transport.file; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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. |
| */ |
| |
| /** |
| * URL handling for file URLs. Based on org.apache.maven.wagon.PathUtils. |
| */ |
| final class PathUtils |
| { |
| |
| private PathUtils() |
| { |
| } |
| |
| /** |
| * Return the protocol name. <br/> |
| * E.g: for input <code>http://www.codehause.org</code> this method will return <code>http</code> |
| * |
| * @param url the url |
| * @return the host name |
| */ |
| public static String protocol( final String url ) |
| { |
| final int pos = url.indexOf( ":" ); |
| |
| if ( pos == -1 ) |
| { |
| return ""; |
| } |
| return url.substring( 0, pos ).trim(); |
| } |
| |
| /** |
| * Derive the path portion of the given URL. |
| * |
| * @param url the file-repository URL |
| * @return the basedir of the repository |
| */ |
| public static String basedir( String url ) |
| { |
| String protocol = PathUtils.protocol( url ); |
| |
| String retValue = null; |
| |
| if ( protocol.length() > 0 ) |
| { |
| retValue = url.substring( protocol.length() + 1 ); |
| } |
| else |
| { |
| retValue = url; |
| } |
| retValue = decode( retValue ); |
| // special case: if omitted // on protocol, keep path as is |
| if ( retValue.startsWith( "//" ) ) |
| { |
| retValue = retValue.substring( 2 ); |
| |
| if ( retValue.length() >= 2 && ( retValue.charAt( 1 ) == '|' || retValue.charAt( 1 ) == ':' ) ) |
| { |
| // special case: if there is a windows drive letter, then keep the original return value |
| retValue = retValue.charAt( 0 ) + ":" + retValue.substring( 2 ); |
| } |
| else |
| { |
| // Now we expect the host |
| int index = retValue.indexOf( "/" ); |
| if ( index >= 0 ) |
| { |
| retValue = retValue.substring( index + 1 ); |
| } |
| |
| // special case: if there is a windows drive letter, then keep the original return value |
| if ( retValue.length() >= 2 && ( retValue.charAt( 1 ) == '|' || retValue.charAt( 1 ) == ':' ) ) |
| { |
| retValue = retValue.charAt( 0 ) + ":" + retValue.substring( 2 ); |
| } |
| else if ( index >= 0 ) |
| { |
| // leading / was previously stripped |
| retValue = "/" + retValue; |
| } |
| } |
| } |
| |
| // special case: if there is a windows drive letter using |, switch to : |
| if ( retValue.length() >= 2 && retValue.charAt( 1 ) == '|' ) |
| { |
| retValue = retValue.charAt( 0 ) + ":" + retValue.substring( 2 ); |
| } |
| |
| return retValue.trim(); |
| } |
| |
| /** |
| * Decodes the specified (portion of a) URL. <strong>Note:</strong> This decoder assumes that ISO-8859-1 is used to |
| * convert URL-encoded octets to characters. |
| * |
| * @param url The URL to decode, may be <code>null</code>. |
| * @return The decoded URL or <code>null</code> if the input was <code>null</code>. |
| */ |
| static String decode( String url ) |
| { |
| String decoded = url; |
| if ( url != null ) |
| { |
| int pos = -1; |
| while ( ( pos = decoded.indexOf( '%', pos + 1 ) ) >= 0 ) |
| { |
| if ( pos + 2 < decoded.length() ) |
| { |
| String hexStr = decoded.substring( pos + 1, pos + 3 ); |
| char ch = (char) Integer.parseInt( hexStr, 16 ); |
| decoded = decoded.substring( 0, pos ) + ch + decoded.substring( pos + 3 ); |
| } |
| } |
| } |
| return decoded; |
| } |
| |
| } |