| /* |
| * Copyright (c) 2000, 2001, 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 com.sun.jndi.toolkit.url; |
| |
| |
| import java.net.MalformedURLException; |
| |
| |
| /** |
| * A Uri object represents an absolute Uniform Resource Identifier |
| * (URI) as defined by RFC 2396 and updated by RFC 2373 and RFC 2732. |
| * The most commonly used form of URI is the Uniform Resource Locator (URL). |
| * |
| * <p> The java.net.URL class cannot be used to parse URIs since it |
| * requires the installation of URL stream handlers that may not be |
| * available. The hack of getting around this by temporarily |
| * replacing the scheme part of a URI is not appropriate here: JNDI |
| * service providers must work on older Java platforms, and we want |
| * new features and bug fixes that are not available in old versions |
| * of the URL class. |
| * |
| * <p> It may be appropriate to drop this code in favor of the |
| * java.net.URI class. The changes would need to be written so as to |
| * still run on pre-1.4 platforms not containing that class. |
| * |
| * <p> The format of an absolute URI (see the RFCs mentioned above) is: |
| * <p><blockquote><pre> |
| * absoluteURI = scheme ":" ( hier_part | opaque_part ) |
| * |
| * scheme = alpha *( alpha | digit | "+" | "-" | "." ) |
| * |
| * hier_part = ( net_path | abs_path ) [ "?" query ] |
| * opaque_part = uric_no_slash *uric |
| * |
| * net_path = "//" authority [ abs_path ] |
| * abs_path = "/" path_segments |
| * |
| * authority = server | reg_name |
| * reg_name = 1*( unreserved | escaped | "$" | "," | |
| * ";" | ":" | "@" | "&" | "=" | "+" ) |
| * server = [ [ userinfo "@" ] hostport ] |
| * userinfo = *( unreserved | escaped | |
| * ";" | ":" | "&" | "=" | "+" | "$" | "," ) |
| * |
| * hostport = host [ ":" port ] |
| * host = hostname | IPv4address | IPv6reference |
| * port = *digit |
| * |
| * IPv6reference = "[" IPv6address "]" |
| * IPv6address = hexpart [ ":" IPv4address ] |
| * IPv4address = 1*3digit "." 1*3digit "." 1*3digit "." 1*3digit |
| * hexpart = hexseq | hexseq "::" [ hexseq ] | "::" [ hexseq ] |
| * hexseq = hex4 *( ":" hex4) |
| * hex4 = 1*4hex |
| * |
| * path = [ abs_path | opaque_part ] |
| * path_segments = segment *( "/" segment ) |
| * segment = *pchar *( ";" param ) |
| * param = *pchar |
| * pchar = unreserved | escaped | |
| * ":" | "@" | "&" | "=" | "+" | "$" | "," |
| * |
| * query = *uric |
| * |
| * uric = reserved | unreserved | escaped |
| * uric_no_slash = unreserved | escaped | ";" | "?" | ":" | "@" | |
| * "&" | "=" | "+" | "$" | "," |
| * reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" | |
| * "$" | "," | "[" | "]" |
| * unreserved = alphanum | mark |
| * mark = "-" | "_" | "." | "!" | "~" | "*" | "'" | "(" | ")" |
| * escaped = "%" hex hex |
| * unwise = "{" | "}" | "|" | "\" | "^" | "`" |
| * </pre></blockquote> |
| * |
| * <p> Currently URIs containing <tt>userinfo</tt> or <tt>reg_name</tt> |
| * are not supported. |
| * The <tt>opaque_part</tt> of a non-hierarchical URI is treated as if |
| * if were a <tt>path</tt> without a leading slash. |
| */ |
| |
| |
| public class Uri { |
| |
| protected String uri; |
| protected String scheme; |
| protected String host = null; |
| protected int port = -1; |
| protected boolean hasAuthority; |
| protected String path; |
| protected String query = null; |
| |
| |
| /** |
| * Creates a Uri object given a URI string. |
| */ |
| public Uri(String uri) throws MalformedURLException { |
| init(uri); |
| } |
| |
| /** |
| * Creates an uninitialized Uri object. The init() method must |
| * be called before any other Uri methods. |
| */ |
| protected Uri() { |
| } |
| |
| /** |
| * Initializes a Uri object given a URI string. |
| * This method must be called exactly once, and before any other Uri |
| * methods. |
| */ |
| protected void init(String uri) throws MalformedURLException { |
| this.uri = uri; |
| parse(uri); |
| } |
| |
| /** |
| * Returns the URI's scheme. |
| */ |
| public String getScheme() { |
| return scheme; |
| } |
| |
| /** |
| * Returns the host from the URI's authority part, or null |
| * if no host is provided. If the host is an IPv6 literal, the |
| * delimiting brackets are part of the returned value (see |
| * {@link java.net.URI#getHost}). |
| */ |
| public String getHost() { |
| return host; |
| } |
| |
| /** |
| * Returns the port from the URI's authority part, or -1 if |
| * no port is provided. |
| */ |
| public int getPort() { |
| return port; |
| } |
| |
| /** |
| * Returns the URI's path. The path is never null. Note that a |
| * slash following the authority part (or the scheme if there is |
| * no authority part) is part of the path. For example, the path |
| * of "http://host/a/b" is "/a/b". |
| */ |
| public String getPath() { |
| return path; |
| } |
| |
| /** |
| * Returns the URI's query part, or null if no query is provided. |
| * Note that a query always begins with a leading "?". |
| */ |
| public String getQuery() { |
| return query; |
| } |
| |
| /** |
| * Returns the URI as a string. |
| */ |
| public String toString() { |
| return uri; |
| } |
| |
| /* |
| * Parses a URI string and sets this object's fields accordingly. |
| */ |
| private void parse(String uri) throws MalformedURLException { |
| int i; // index into URI |
| |
| i = uri.indexOf(':'); // parse scheme |
| if (i < 0) { |
| throw new MalformedURLException("Invalid URI: " + uri); |
| } |
| scheme = uri.substring(0, i); |
| i++; // skip past ":" |
| |
| hasAuthority = uri.startsWith("//", i); |
| if (hasAuthority) { // parse "//host:port" |
| i += 2; // skip past "//" |
| int slash = uri.indexOf('/', i); |
| if (slash < 0) { |
| slash = uri.length(); |
| } |
| if (uri.startsWith("[", i)) { // at IPv6 literal |
| int brac = uri.indexOf(']', i + 1); |
| if (brac < 0 || brac > slash) { |
| throw new MalformedURLException("Invalid URI: " + uri); |
| } |
| host = uri.substring(i, brac + 1); // include brackets |
| i = brac + 1; // skip past "[...]" |
| } else { // at host name or IPv4 |
| int colon = uri.indexOf(':', i); |
| int hostEnd = (colon < 0 || colon > slash) |
| ? slash |
| : colon; |
| if (i < hostEnd) { |
| host = uri.substring(i, hostEnd); |
| } |
| i = hostEnd; // skip past host |
| } |
| |
| if ((i + 1 < slash) && |
| uri.startsWith(":", i)) { // parse port |
| i++; // skip past ":" |
| port = Integer.parseInt(uri.substring(i, slash)); |
| } |
| i = slash; // skip to path |
| } |
| int qmark = uri.indexOf('?', i); // look for query |
| if (qmark < 0) { |
| path = uri.substring(i); |
| } else { |
| path = uri.substring(i, qmark); |
| query = uri.substring(qmark); |
| } |
| } |
| |
| /* |
| // Debug |
| public static void main(String args[]) throws MalformedURLException { |
| for (int i = 0; i < args.length; i++) { |
| Uri uri = new Uri(args[i]); |
| |
| String h = (uri.getHost() != null) ? uri.getHost() : ""; |
| String p = (uri.getPort() != -1) ? (":" + uri.getPort()) : ""; |
| String a = uri.hasAuthority ? ("//" + h + p) : ""; |
| String q = (uri.getQuery() != null) ? uri.getQuery() : ""; |
| |
| String str = uri.getScheme() + ":" + a + uri.getPath() + q; |
| if (! uri.toString().equals(str)) { |
| System.out.println(str); |
| } |
| System.out.println(h); |
| } |
| } |
| */ |
| } |