| /* |
| * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.nio.fs; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| /** |
| * Utility methods to convert between Path and URIs. |
| */ |
| |
| class WindowsUriSupport { |
| private WindowsUriSupport() { |
| } |
| |
| // suffix for IPv6 literal address |
| private static final String IPV6_LITERAL_SUFFIX = ".ipv6-literal.net"; |
| |
| /** |
| * Returns URI to represent the given (absolute) path |
| */ |
| private static URI toUri(String path, boolean isUnc, boolean addSlash) { |
| String uriHost; |
| String uriPath; |
| |
| if (isUnc) { |
| int slash = path.indexOf('\\', 2); |
| uriHost = path.substring(2, slash); |
| uriPath = path.substring(slash).replace('\\', '/'); |
| |
| // handle IPv6 literal addresses |
| // 1. drop .ivp6-literal.net |
| // 2. replace "-" with ":" |
| // 3. replace "s" with "%" (zone/scopeID delimiter) |
| if (uriHost.endsWith(IPV6_LITERAL_SUFFIX)) { |
| uriHost = uriHost |
| .substring(0, uriHost.length() - IPV6_LITERAL_SUFFIX.length()) |
| .replace('-', ':') |
| .replace('s', '%'); |
| } |
| } else { |
| uriHost = ""; |
| uriPath = "/" + path.replace('\\', '/'); |
| } |
| |
| // append slash if known to be directory |
| if (addSlash) |
| uriPath += "/"; |
| |
| // return file:///C:/My%20Documents or file://server/share/foo |
| try { |
| return new URI("file", uriHost, uriPath, null); |
| } catch (URISyntaxException x) { |
| if (!isUnc) |
| throw new AssertionError(x); |
| } |
| |
| // if we get here it means we've got a UNC with reserved characters |
| // in the server name. The authority component cannot contain escaped |
| // octets so fallback to encoding the server name into the URI path |
| // component. |
| uriPath = "//" + path.replace('\\', '/'); |
| if (addSlash) |
| uriPath += "/"; |
| try { |
| return new URI("file", null, uriPath, null); |
| } catch (URISyntaxException x) { |
| throw new AssertionError(x); |
| } |
| } |
| |
| /** |
| * Converts given Path to a URI |
| */ |
| static URI toUri(WindowsPath path) { |
| path = path.toAbsolutePath(); |
| String s = path.toString(); |
| |
| // trailing slash will be added if file is a directory. Skip check if |
| // already have trailing space |
| boolean addSlash = false; |
| if (!s.endsWith("\\")) { |
| try { |
| addSlash = WindowsFileAttributes.get(path, true).isDirectory(); |
| } catch (WindowsException x) { |
| } |
| } |
| |
| return toUri(s, path.isUnc(), addSlash); |
| } |
| |
| /** |
| * Converts given URI to a Path |
| */ |
| static WindowsPath fromUri(WindowsFileSystem fs, URI uri) { |
| if (!uri.isAbsolute()) |
| throw new IllegalArgumentException("URI is not absolute"); |
| if (uri.isOpaque()) |
| throw new IllegalArgumentException("URI is not hierarchical"); |
| String scheme = uri.getScheme(); |
| if ((scheme == null) || !scheme.equalsIgnoreCase("file")) |
| throw new IllegalArgumentException("URI scheme is not \"file\""); |
| if (uri.getFragment() != null) |
| throw new IllegalArgumentException("URI has a fragment component"); |
| if (uri.getQuery() != null) |
| throw new IllegalArgumentException("URI has a query component"); |
| String path = uri.getPath(); |
| if (path.equals("")) |
| throw new IllegalArgumentException("URI path component is empty"); |
| |
| // UNC |
| String auth = uri.getAuthority(); |
| if (auth != null && !auth.equals("")) { |
| String host = uri.getHost(); |
| if (host == null) |
| throw new IllegalArgumentException("URI authority component has undefined host"); |
| if (uri.getUserInfo() != null) |
| throw new IllegalArgumentException("URI authority component has user-info"); |
| if (uri.getPort() != -1) |
| throw new IllegalArgumentException("URI authority component has port number"); |
| |
| // IPv6 literal |
| // 1. drop enclosing brackets |
| // 2. replace ":" with "-" |
| // 3. replace "%" with "s" (zone/scopeID delimiter) |
| // 4. Append .ivp6-literal.net |
| if (host.startsWith("[")) { |
| host = host.substring(1, host.length()-1) |
| .replace(':', '-') |
| .replace('%', 's'); |
| host += IPV6_LITERAL_SUFFIX; |
| } |
| |
| // reconstitute the UNC |
| path = "\\\\" + host + path; |
| } else { |
| if ((path.length() > 2) && (path.charAt(2) == ':')) { |
| // "/c:/foo" --> "c:/foo" |
| path = path.substring(1); |
| } |
| } |
| return WindowsPath.parse(fs, path); |
| } |
| } |