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1693 lines
47 KiB
1693 lines
47 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/*
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* Copyright 1999-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: URI.java,v 1.2.4.1 2005/09/15 08:16:00 suresh_emailid Exp $
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*/
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package com.sun.org.apache.xml.internal.utils;
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import java.io.IOException;
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import java.io.Serializable;
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import com.sun.org.apache.xml.internal.res.XMLErrorResources;
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import com.sun.org.apache.xml.internal.res.XMLMessages;
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import java.util.Objects;
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/**
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* A class to represent a Uniform Resource Identifier (URI). This class
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* is designed to handle the parsing of URIs and provide access to
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* the various components (scheme, host, port, userinfo, path, query
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* string and fragment) that may constitute a URI.
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* <p>
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* Parsing of a URI specification is done according to the URI
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* syntax described in RFC 2396
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* <http://www.ietf.org/rfc/rfc2396.txt?number=2396>. Every URI consists
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* of a scheme, followed by a colon (':'), followed by a scheme-specific
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* part. For URIs that follow the "generic URI" syntax, the scheme-
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* specific part begins with two slashes ("//") and may be followed
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* by an authority segment (comprised of user information, host, and
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* port), path segment, query segment and fragment. Note that RFC 2396
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* no longer specifies the use of the parameters segment and excludes
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* the "user:password" syntax as part of the authority segment. If
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* "user:password" appears in a URI, the entire user/password string
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* is stored as userinfo.
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* <p>
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* For URIs that do not follow the "generic URI" syntax (e.g. mailto),
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* the entire scheme-specific part is treated as the "path" portion
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* of the URI.
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* <p>
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* Note that, unlike the java.net.URL class, this class does not provide
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* any built-in network access functionality nor does it provide any
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* scheme-specific functionality (for example, it does not know a
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* default port for a specific scheme). Rather, it only knows the
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* grammar and basic set of operations that can be applied to a URI.
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*
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*
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*/
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public class URI implements Serializable
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{
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static final long serialVersionUID = 7096266377907081897L;
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/**
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* MalformedURIExceptions are thrown in the process of building a URI
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* or setting fields on a URI when an operation would result in an
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* invalid URI specification.
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*
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*/
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public static class MalformedURIException extends IOException
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{
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/**
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* Constructs a <code>MalformedURIException</code> with no specified
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* detail message.
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*/
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public MalformedURIException()
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{
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super();
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}
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/**
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* Constructs a <code>MalformedURIException</code> with the
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* specified detail message.
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*
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* @param p_msg the detail message.
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*/
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public MalformedURIException(String p_msg)
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{
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super(p_msg);
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}
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}
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/** reserved characters */
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private static final String RESERVED_CHARACTERS = ";/?:@&=+$,";
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/**
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* URI punctuation mark characters - these, combined with
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* alphanumerics, constitute the "unreserved" characters
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*/
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private static final String MARK_CHARACTERS = "-_.!~*'() ";
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/** scheme can be composed of alphanumerics and these characters */
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private static final String SCHEME_CHARACTERS = "+-.";
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/**
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* userinfo can be composed of unreserved, escaped and these
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* characters
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*/
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private static final String USERINFO_CHARACTERS = ";:&=+$,";
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/** Stores the scheme (usually the protocol) for this URI.
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* @serial */
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private String m_scheme = null;
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/** If specified, stores the userinfo for this URI; otherwise null.
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* @serial */
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private String m_userinfo = null;
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/** If specified, stores the host for this URI; otherwise null.
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* @serial */
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private String m_host = null;
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/** If specified, stores the port for this URI; otherwise -1.
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* @serial */
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private int m_port = -1;
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/** If specified, stores the path for this URI; otherwise null.
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* @serial */
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private String m_path = null;
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/**
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* If specified, stores the query string for this URI; otherwise
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* null.
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* @serial
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*/
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private String m_queryString = null;
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/** If specified, stores the fragment for this URI; otherwise null.
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* @serial */
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private String m_fragment = null;
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/** Indicate whether in DEBUG mode */
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private static boolean DEBUG = false;
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/**
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* Construct a new and uninitialized URI.
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*/
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public URI(){}
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/**
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* Construct a new URI from another URI. All fields for this URI are
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* set equal to the fields of the URI passed in.
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*
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* @param p_other the URI to copy (cannot be null)
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*/
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public URI(URI p_other)
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{
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initialize(p_other);
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}
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/**
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* Construct a new URI from a URI specification string. If the
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* specification follows the "generic URI" syntax, (two slashes
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* following the first colon), the specification will be parsed
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* accordingly - setting the scheme, userinfo, host,port, path, query
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* string and fragment fields as necessary. If the specification does
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* not follow the "generic URI" syntax, the specification is parsed
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* into a scheme and scheme-specific part (stored as the path) only.
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*
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* @param p_uriSpec the URI specification string (cannot be null or
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* empty)
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*
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* @throws MalformedURIException if p_uriSpec violates any syntax
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* rules
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*/
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public URI(String p_uriSpec) throws MalformedURIException
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{
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this((URI) null, p_uriSpec);
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}
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/**
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* Construct a new URI from a base URI and a URI specification string.
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* The URI specification string may be a relative URI.
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*
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* @param p_base the base URI (cannot be null if p_uriSpec is null or
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* empty)
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* @param p_uriSpec the URI specification string (cannot be null or
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* empty if p_base is null)
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*
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* @throws MalformedURIException if p_uriSpec violates any syntax
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* rules
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*/
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public URI(URI p_base, String p_uriSpec) throws MalformedURIException
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{
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initialize(p_base, p_uriSpec);
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}
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/**
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* Construct a new URI that does not follow the generic URI syntax.
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* Only the scheme and scheme-specific part (stored as the path) are
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* initialized.
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*
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* @param p_scheme the URI scheme (cannot be null or empty)
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* @param p_schemeSpecificPart the scheme-specific part (cannot be
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* null or empty)
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*
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* @throws MalformedURIException if p_scheme violates any
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* syntax rules
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*/
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public URI(String p_scheme, String p_schemeSpecificPart)
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throws MalformedURIException
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{
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if (p_scheme == null || p_scheme.trim().length() == 0)
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{
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throw new MalformedURIException(
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"Cannot construct URI with null/empty scheme!");
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}
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if (p_schemeSpecificPart == null
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|| p_schemeSpecificPart.trim().length() == 0)
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{
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throw new MalformedURIException(
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"Cannot construct URI with null/empty scheme-specific part!");
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}
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setScheme(p_scheme);
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setPath(p_schemeSpecificPart);
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}
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/**
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* Construct a new URI that follows the generic URI syntax from its
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* component parts. Each component is validated for syntax and some
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* basic semantic checks are performed as well. See the individual
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* setter methods for specifics.
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*
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* @param p_scheme the URI scheme (cannot be null or empty)
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* @param p_host the hostname or IPv4 address for the URI
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* @param p_path the URI path - if the path contains '?' or '#',
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* then the query string and/or fragment will be
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* set from the path; however, if the query and
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* fragment are specified both in the path and as
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* separate parameters, an exception is thrown
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* @param p_queryString the URI query string (cannot be specified
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* if path is null)
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* @param p_fragment the URI fragment (cannot be specified if path
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* is null)
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*
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* @throws MalformedURIException if any of the parameters violates
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* syntax rules or semantic rules
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*/
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public URI(String p_scheme, String p_host, String p_path, String p_queryString, String p_fragment)
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throws MalformedURIException
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{
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this(p_scheme, null, p_host, -1, p_path, p_queryString, p_fragment);
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}
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/**
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* Construct a new URI that follows the generic URI syntax from its
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* component parts. Each component is validated for syntax and some
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* basic semantic checks are performed as well. See the individual
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* setter methods for specifics.
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*
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* @param p_scheme the URI scheme (cannot be null or empty)
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* @param p_userinfo the URI userinfo (cannot be specified if host
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* is null)
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* @param p_host the hostname or IPv4 address for the URI
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* @param p_port the URI port (may be -1 for "unspecified"; cannot
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* be specified if host is null)
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* @param p_path the URI path - if the path contains '?' or '#',
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* then the query string and/or fragment will be
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* set from the path; however, if the query and
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* fragment are specified both in the path and as
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* separate parameters, an exception is thrown
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* @param p_queryString the URI query string (cannot be specified
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* if path is null)
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* @param p_fragment the URI fragment (cannot be specified if path
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* is null)
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*
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* @throws MalformedURIException if any of the parameters violates
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* syntax rules or semantic rules
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*/
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public URI(String p_scheme, String p_userinfo, String p_host, int p_port, String p_path, String p_queryString, String p_fragment)
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throws MalformedURIException
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{
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if (p_scheme == null || p_scheme.trim().length() == 0)
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{
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throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_REQUIRED, null)); //"Scheme is required!");
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}
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if (p_host == null)
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{
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if (p_userinfo != null)
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{
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throw new MalformedURIException(
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XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_USERINFO_IF_NO_HOST, null)); //"Userinfo may not be specified if host is not specified!");
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}
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if (p_port != -1)
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{
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throw new MalformedURIException(
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XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_PORT_IF_NO_HOST, null)); //"Port may not be specified if host is not specified!");
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}
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}
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if (p_path != null)
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{
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if (p_path.indexOf('?') != -1 && p_queryString != null)
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{
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throw new MalformedURIException(
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XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_QUERY_STRING_IN_PATH, null)); //"Query string cannot be specified in path and query string!");
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}
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if (p_path.indexOf('#') != -1 && p_fragment != null)
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{
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throw new MalformedURIException(
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XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_FRAGMENT_STRING_IN_PATH, null)); //"Fragment cannot be specified in both the path and fragment!");
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}
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}
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setScheme(p_scheme);
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setHost(p_host);
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setPort(p_port);
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setUserinfo(p_userinfo);
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setPath(p_path);
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setQueryString(p_queryString);
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setFragment(p_fragment);
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}
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/**
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* Initialize all fields of this URI from another URI.
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*
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* @param p_other the URI to copy (cannot be null)
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*/
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private void initialize(URI p_other)
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{
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m_scheme = p_other.getScheme();
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m_userinfo = p_other.getUserinfo();
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m_host = p_other.getHost();
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m_port = p_other.getPort();
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m_path = p_other.getPath();
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m_queryString = p_other.getQueryString();
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m_fragment = p_other.getFragment();
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}
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|
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/**
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* Initializes this URI from a base URI and a URI specification string.
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* See RFC 2396 Section 4 and Appendix B for specifications on parsing
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* the URI and Section 5 for specifications on resolving relative URIs
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* and relative paths.
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*
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* @param p_base the base URI (may be null if p_uriSpec is an absolute
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* URI)
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* @param p_uriSpec the URI spec string which may be an absolute or
|
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* relative URI (can only be null/empty if p_base
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* is not null)
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*
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* @throws MalformedURIException if p_base is null and p_uriSpec
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* is not an absolute URI or if
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* p_uriSpec violates syntax rules
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*/
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private void initialize(URI p_base, String p_uriSpec)
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throws MalformedURIException
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{
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if (p_base == null
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&& (p_uriSpec == null || p_uriSpec.trim().length() == 0))
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{
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throw new MalformedURIException(
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XMLMessages.createXMLMessage(XMLErrorResources.ER_CANNOT_INIT_URI_EMPTY_PARMS, null)); //"Cannot initialize URI with empty parameters.");
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}
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// just make a copy of the base if spec is empty
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if (p_uriSpec == null || p_uriSpec.trim().length() == 0)
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{
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initialize(p_base);
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return;
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}
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String uriSpec = p_uriSpec.trim();
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int uriSpecLen = uriSpec.length();
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int index = 0;
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// check for scheme
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int colonIndex = uriSpec.indexOf(':');
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if (colonIndex < 0)
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{
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if (p_base == null)
|
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{
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throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_SCHEME_IN_URI, new Object[]{uriSpec})); //"No scheme found in URI: "+uriSpec);
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}
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}
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else
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{
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initializeScheme(uriSpec);
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uriSpec = uriSpec.substring(colonIndex+1);
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// This is a fix for XALANJ-2059.
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if(m_scheme != null && p_base != null)
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{
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// a) If <uriSpec> starts with a slash (/), it means <uriSpec> is absolute
|
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// and p_base can be ignored.
|
|
// For example,
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// uriSpec = file:/myDIR/myXSLFile.xsl
|
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// p_base = file:/myWork/
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//
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// Here, uriSpec has absolute path after scheme file and :
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// Hence p_base can be ignored.
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//
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// b) Similarily, according to RFC 2396, uri is resolved for <uriSpec> relative to <p_base>
|
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// if scheme in <uriSpec> is same as scheme in <p_base>, else p_base can be ignored.
|
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//
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// c) if <p_base> is not hierarchical, it can be ignored.
|
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//
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if(uriSpec.startsWith("/") || !m_scheme.equals(p_base.m_scheme) || !p_base.getSchemeSpecificPart().startsWith("/"))
|
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{
|
|
p_base = null;
|
|
}
|
|
}
|
|
// Fix for XALANJ-2059
|
|
uriSpecLen = uriSpec.length();
|
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}
|
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|
|
// two slashes means generic URI syntax, so we get the authority
|
|
if (((index + 1) < uriSpecLen)
|
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&& (uriSpec.substring(index).startsWith("//")))
|
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{
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|
index += 2;
|
|
|
|
int startPos = index;
|
|
|
|
// get authority - everything up to path, query or fragment
|
|
char testChar = '\0';
|
|
|
|
while (index < uriSpecLen)
|
|
{
|
|
testChar = uriSpec.charAt(index);
|
|
|
|
if (testChar == '/' || testChar == '?' || testChar == '#')
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{
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break;
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|
}
|
|
|
|
index++;
|
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}
|
|
|
|
// if we found authority, parse it out, otherwise we set the
|
|
// host to empty string
|
|
if (index > startPos)
|
|
{
|
|
initializeAuthority(uriSpec.substring(startPos, index));
|
|
}
|
|
else
|
|
{
|
|
m_host = "";
|
|
}
|
|
}
|
|
|
|
initializePath(uriSpec.substring(index));
|
|
|
|
// Resolve relative URI to base URI - see RFC 2396 Section 5.2
|
|
// In some cases, it might make more sense to throw an exception
|
|
// (when scheme is specified is the string spec and the base URI
|
|
// is also specified, for example), but we're just following the
|
|
// RFC specifications
|
|
if (p_base != null)
|
|
{
|
|
|
|
// check to see if this is the current doc - RFC 2396 5.2 #2
|
|
// note that this is slightly different from the RFC spec in that
|
|
// we don't include the check for query string being null
|
|
// - this handles cases where the urispec is just a query
|
|
// string or a fragment (e.g. "?y" or "#s") -
|
|
// see <http://www.ics.uci.edu/~fielding/url/test1.html> which
|
|
// identified this as a bug in the RFC
|
|
if (m_path.length() == 0 && m_scheme == null && m_host == null)
|
|
{
|
|
m_scheme = p_base.getScheme();
|
|
m_userinfo = p_base.getUserinfo();
|
|
m_host = p_base.getHost();
|
|
m_port = p_base.getPort();
|
|
m_path = p_base.getPath();
|
|
|
|
if (m_queryString == null)
|
|
{
|
|
m_queryString = p_base.getQueryString();
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// check for scheme - RFC 2396 5.2 #3
|
|
// if we found a scheme, it means absolute URI, so we're done
|
|
if (m_scheme == null)
|
|
{
|
|
m_scheme = p_base.getScheme();
|
|
}
|
|
|
|
// check for authority - RFC 2396 5.2 #4
|
|
// if we found a host, then we've got a network path, so we're done
|
|
if (m_host == null)
|
|
{
|
|
m_userinfo = p_base.getUserinfo();
|
|
m_host = p_base.getHost();
|
|
m_port = p_base.getPort();
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
|
|
// check for absolute path - RFC 2396 5.2 #5
|
|
if (m_path.length() > 0 && m_path.startsWith("/"))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// if we get to this point, we need to resolve relative path
|
|
// RFC 2396 5.2 #6
|
|
String path = "";
|
|
String basePath = p_base.getPath();
|
|
|
|
// 6a - get all but the last segment of the base URI path
|
|
if (basePath != null)
|
|
{
|
|
int lastSlash = basePath.lastIndexOf('/');
|
|
|
|
if (lastSlash != -1)
|
|
{
|
|
path = basePath.substring(0, lastSlash + 1);
|
|
}
|
|
}
|
|
|
|
// 6b - append the relative URI path
|
|
path = path.concat(m_path);
|
|
|
|
// 6c - remove all "./" where "." is a complete path segment
|
|
index = -1;
|
|
|
|
while ((index = path.indexOf("/./")) != -1)
|
|
{
|
|
path = path.substring(0, index + 1).concat(path.substring(index + 3));
|
|
}
|
|
|
|
// 6d - remove "." if path ends with "." as a complete path segment
|
|
if (path.endsWith("/."))
|
|
{
|
|
path = path.substring(0, path.length() - 1);
|
|
}
|
|
|
|
// 6e - remove all "<segment>/../" where "<segment>" is a complete
|
|
// path segment not equal to ".."
|
|
index = -1;
|
|
|
|
int segIndex = -1;
|
|
String tempString = null;
|
|
|
|
while ((index = path.indexOf("/../")) > 0)
|
|
{
|
|
tempString = path.substring(0, path.indexOf("/../"));
|
|
segIndex = tempString.lastIndexOf('/');
|
|
|
|
if (segIndex != -1)
|
|
{
|
|
if (!tempString.substring(segIndex++).equals(".."))
|
|
{
|
|
path = path.substring(0, segIndex).concat(path.substring(index
|
|
+ 4));
|
|
}
|
|
}
|
|
}
|
|
|
|
// 6f - remove ending "<segment>/.." where "<segment>" is a
|
|
// complete path segment
|
|
if (path.endsWith("/.."))
|
|
{
|
|
tempString = path.substring(0, path.length() - 3);
|
|
segIndex = tempString.lastIndexOf('/');
|
|
|
|
if (segIndex != -1)
|
|
{
|
|
path = path.substring(0, segIndex + 1);
|
|
}
|
|
}
|
|
|
|
m_path = path;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialize the scheme for this URI from a URI string spec.
|
|
*
|
|
* @param p_uriSpec the URI specification (cannot be null)
|
|
*
|
|
* @throws MalformedURIException if URI does not have a conformant
|
|
* scheme
|
|
*/
|
|
private void initializeScheme(String p_uriSpec) throws MalformedURIException
|
|
{
|
|
|
|
int uriSpecLen = p_uriSpec.length();
|
|
int index = 0;
|
|
String scheme = null;
|
|
char testChar = '\0';
|
|
|
|
while (index < uriSpecLen)
|
|
{
|
|
testChar = p_uriSpec.charAt(index);
|
|
|
|
if (testChar == ':' || testChar == '/' || testChar == '?'
|
|
|| testChar == '#')
|
|
{
|
|
break;
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
scheme = p_uriSpec.substring(0, index);
|
|
|
|
if (scheme.length() == 0)
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_SCHEME_INURI, null)); //"No scheme found in URI.");
|
|
}
|
|
else
|
|
{
|
|
setScheme(scheme);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialize the authority (userinfo, host and port) for this
|
|
* URI from a URI string spec.
|
|
*
|
|
* @param p_uriSpec the URI specification (cannot be null)
|
|
*
|
|
* @throws MalformedURIException if p_uriSpec violates syntax rules
|
|
*/
|
|
private void initializeAuthority(String p_uriSpec)
|
|
throws MalformedURIException
|
|
{
|
|
|
|
int index = 0;
|
|
int start = 0;
|
|
int end = p_uriSpec.length();
|
|
char testChar = '\0';
|
|
String userinfo = null;
|
|
|
|
// userinfo is everything up @
|
|
if (p_uriSpec.indexOf('@', start) != -1)
|
|
{
|
|
while (index < end)
|
|
{
|
|
testChar = p_uriSpec.charAt(index);
|
|
|
|
if (testChar == '@')
|
|
{
|
|
break;
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
userinfo = p_uriSpec.substring(start, index);
|
|
|
|
index++;
|
|
}
|
|
|
|
// host is everything up to ':'
|
|
String host = null;
|
|
|
|
start = index;
|
|
|
|
while (index < end)
|
|
{
|
|
testChar = p_uriSpec.charAt(index);
|
|
|
|
if (testChar == ':')
|
|
{
|
|
break;
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
host = p_uriSpec.substring(start, index);
|
|
|
|
int port = -1;
|
|
|
|
if (host.length() > 0)
|
|
{
|
|
|
|
// port
|
|
if (testChar == ':')
|
|
{
|
|
index++;
|
|
|
|
start = index;
|
|
|
|
while (index < end)
|
|
{
|
|
index++;
|
|
}
|
|
|
|
String portStr = p_uriSpec.substring(start, index);
|
|
|
|
if (portStr.length() > 0)
|
|
{
|
|
for (int i = 0; i < portStr.length(); i++)
|
|
{
|
|
if (!isDigit(portStr.charAt(i)))
|
|
{
|
|
throw new MalformedURIException(
|
|
portStr + " is invalid. Port should only contain digits!");
|
|
}
|
|
}
|
|
|
|
try
|
|
{
|
|
port = Integer.parseInt(portStr);
|
|
}
|
|
catch (NumberFormatException nfe)
|
|
{
|
|
|
|
// can't happen
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
setHost(host);
|
|
setPort(port);
|
|
setUserinfo(userinfo);
|
|
}
|
|
|
|
/**
|
|
* Initialize the path for this URI from a URI string spec.
|
|
*
|
|
* @param p_uriSpec the URI specification (cannot be null)
|
|
*
|
|
* @throws MalformedURIException if p_uriSpec violates syntax rules
|
|
*/
|
|
private void initializePath(String p_uriSpec) throws MalformedURIException
|
|
{
|
|
|
|
if (p_uriSpec == null)
|
|
{
|
|
throw new MalformedURIException(
|
|
"Cannot initialize path from null string!");
|
|
}
|
|
|
|
int index = 0;
|
|
int start = 0;
|
|
int end = p_uriSpec.length();
|
|
char testChar = '\0';
|
|
|
|
// path - everything up to query string or fragment
|
|
while (index < end)
|
|
{
|
|
testChar = p_uriSpec.charAt(index);
|
|
|
|
if (testChar == '?' || testChar == '#')
|
|
{
|
|
break;
|
|
}
|
|
|
|
// check for valid escape sequence
|
|
if (testChar == '%')
|
|
{
|
|
if (index + 2 >= end ||!isHex(p_uriSpec.charAt(index + 1))
|
|
||!isHex(p_uriSpec.charAt(index + 2)))
|
|
{
|
|
throw new MalformedURIException(
|
|
XMLMessages.createXMLMessage(XMLErrorResources.ER_PATH_CONTAINS_INVALID_ESCAPE_SEQUENCE, null)); //"Path contains invalid escape sequence!");
|
|
}
|
|
}
|
|
else if (!isReservedCharacter(testChar)
|
|
&&!isUnreservedCharacter(testChar))
|
|
{
|
|
if ('\\' != testChar)
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_PATH_INVALID_CHAR, new Object[]{String.valueOf(testChar)})); //"Path contains invalid character: "
|
|
//+ testChar);
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
m_path = p_uriSpec.substring(start, index);
|
|
|
|
// query - starts with ? and up to fragment or end
|
|
if (testChar == '?')
|
|
{
|
|
index++;
|
|
|
|
start = index;
|
|
|
|
while (index < end)
|
|
{
|
|
testChar = p_uriSpec.charAt(index);
|
|
|
|
if (testChar == '#')
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (testChar == '%')
|
|
{
|
|
if (index + 2 >= end ||!isHex(p_uriSpec.charAt(index + 1))
|
|
||!isHex(p_uriSpec.charAt(index + 2)))
|
|
{
|
|
throw new MalformedURIException(
|
|
"Query string contains invalid escape sequence!");
|
|
}
|
|
}
|
|
else if (!isReservedCharacter(testChar)
|
|
&&!isUnreservedCharacter(testChar))
|
|
{
|
|
throw new MalformedURIException(
|
|
"Query string contains invalid character:" + testChar);
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
m_queryString = p_uriSpec.substring(start, index);
|
|
}
|
|
|
|
// fragment - starts with #
|
|
if (testChar == '#')
|
|
{
|
|
index++;
|
|
|
|
start = index;
|
|
|
|
while (index < end)
|
|
{
|
|
testChar = p_uriSpec.charAt(index);
|
|
|
|
if (testChar == '%')
|
|
{
|
|
if (index + 2 >= end ||!isHex(p_uriSpec.charAt(index + 1))
|
|
||!isHex(p_uriSpec.charAt(index + 2)))
|
|
{
|
|
throw new MalformedURIException(
|
|
"Fragment contains invalid escape sequence!");
|
|
}
|
|
}
|
|
else if (!isReservedCharacter(testChar)
|
|
&&!isUnreservedCharacter(testChar))
|
|
{
|
|
throw new MalformedURIException(
|
|
"Fragment contains invalid character:" + testChar);
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
m_fragment = p_uriSpec.substring(start, index);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the scheme for this URI.
|
|
*
|
|
* @return the scheme for this URI
|
|
*/
|
|
public String getScheme()
|
|
{
|
|
return m_scheme;
|
|
}
|
|
|
|
/**
|
|
* Get the scheme-specific part for this URI (everything following the
|
|
* scheme and the first colon). See RFC 2396 Section 5.2 for spec.
|
|
*
|
|
* @return the scheme-specific part for this URI
|
|
*/
|
|
public String getSchemeSpecificPart()
|
|
{
|
|
|
|
final StringBuilder schemespec = new StringBuilder();
|
|
|
|
if (m_userinfo != null || m_host != null || m_port != -1)
|
|
{
|
|
schemespec.append("//");
|
|
}
|
|
|
|
if (m_userinfo != null)
|
|
{
|
|
schemespec.append(m_userinfo);
|
|
schemespec.append('@');
|
|
}
|
|
|
|
if (m_host != null)
|
|
{
|
|
schemespec.append(m_host);
|
|
}
|
|
|
|
if (m_port != -1)
|
|
{
|
|
schemespec.append(':');
|
|
schemespec.append(m_port);
|
|
}
|
|
|
|
if (m_path != null)
|
|
{
|
|
schemespec.append((m_path));
|
|
}
|
|
|
|
if (m_queryString != null)
|
|
{
|
|
schemespec.append('?');
|
|
schemespec.append(m_queryString);
|
|
}
|
|
|
|
if (m_fragment != null)
|
|
{
|
|
schemespec.append('#');
|
|
schemespec.append(m_fragment);
|
|
}
|
|
|
|
return schemespec.toString();
|
|
}
|
|
|
|
/**
|
|
* Get the userinfo for this URI.
|
|
*
|
|
* @return the userinfo for this URI (null if not specified).
|
|
*/
|
|
public String getUserinfo()
|
|
{
|
|
return m_userinfo;
|
|
}
|
|
|
|
/**
|
|
* Get the host for this URI.
|
|
*
|
|
* @return the host for this URI (null if not specified).
|
|
*/
|
|
public String getHost()
|
|
{
|
|
return m_host;
|
|
}
|
|
|
|
/**
|
|
* Get the port for this URI.
|
|
*
|
|
* @return the port for this URI (-1 if not specified).
|
|
*/
|
|
public int getPort()
|
|
{
|
|
return m_port;
|
|
}
|
|
|
|
/**
|
|
* Get the path for this URI (optionally with the query string and
|
|
* fragment).
|
|
*
|
|
* @param p_includeQueryString if true (and query string is not null),
|
|
* then a "?" followed by the query string
|
|
* will be appended
|
|
* @param p_includeFragment if true (and fragment is not null),
|
|
* then a "#" followed by the fragment
|
|
* will be appended
|
|
*
|
|
* @return the path for this URI possibly including the query string
|
|
* and fragment
|
|
*/
|
|
public String getPath(boolean p_includeQueryString,
|
|
boolean p_includeFragment)
|
|
{
|
|
|
|
final StringBuilder pathString = new StringBuilder(m_path);
|
|
|
|
if (p_includeQueryString && m_queryString != null)
|
|
{
|
|
pathString.append('?');
|
|
pathString.append(m_queryString);
|
|
}
|
|
|
|
if (p_includeFragment && m_fragment != null)
|
|
{
|
|
pathString.append('#');
|
|
pathString.append(m_fragment);
|
|
}
|
|
|
|
return pathString.toString();
|
|
}
|
|
|
|
/**
|
|
* Get the path for this URI. Note that the value returned is the path
|
|
* only and does not include the query string or fragment.
|
|
*
|
|
* @return the path for this URI.
|
|
*/
|
|
public String getPath()
|
|
{
|
|
return m_path;
|
|
}
|
|
|
|
/**
|
|
* Get the query string for this URI.
|
|
*
|
|
* @return the query string for this URI. Null is returned if there
|
|
* was no "?" in the URI spec, empty string if there was a
|
|
* "?" but no query string following it.
|
|
*/
|
|
public String getQueryString()
|
|
{
|
|
return m_queryString;
|
|
}
|
|
|
|
/**
|
|
* Get the fragment for this URI.
|
|
*
|
|
* @return the fragment for this URI. Null is returned if there
|
|
* was no "#" in the URI spec, empty string if there was a
|
|
* "#" but no fragment following it.
|
|
*/
|
|
public String getFragment()
|
|
{
|
|
return m_fragment;
|
|
}
|
|
|
|
/**
|
|
* Set the scheme for this URI. The scheme is converted to lowercase
|
|
* before it is set.
|
|
*
|
|
* @param p_scheme the scheme for this URI (cannot be null)
|
|
*
|
|
* @throws MalformedURIException if p_scheme is not a conformant
|
|
* scheme name
|
|
*/
|
|
public void setScheme(String p_scheme) throws MalformedURIException
|
|
{
|
|
|
|
if (p_scheme == null)
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_FROM_NULL_STRING, null)); //"Cannot set scheme from null string!");
|
|
}
|
|
|
|
if (!isConformantSchemeName(p_scheme))
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_NOT_CONFORMANT, null)); //"The scheme is not conformant.");
|
|
}
|
|
|
|
m_scheme = p_scheme.toLowerCase();
|
|
}
|
|
|
|
/**
|
|
* Set the userinfo for this URI. If a non-null value is passed in and
|
|
* the host value is null, then an exception is thrown.
|
|
*
|
|
* @param p_userinfo the userinfo for this URI
|
|
*
|
|
* @throws MalformedURIException if p_userinfo contains invalid
|
|
* characters
|
|
*/
|
|
public void setUserinfo(String p_userinfo) throws MalformedURIException
|
|
{
|
|
|
|
if (p_userinfo == null)
|
|
{
|
|
m_userinfo = null;
|
|
}
|
|
else
|
|
{
|
|
if (m_host == null)
|
|
{
|
|
throw new MalformedURIException(
|
|
"Userinfo cannot be set when host is null!");
|
|
}
|
|
|
|
// userinfo can contain alphanumerics, mark characters, escaped
|
|
// and ';',':','&','=','+','$',','
|
|
int index = 0;
|
|
int end = p_userinfo.length();
|
|
char testChar = '\0';
|
|
|
|
while (index < end)
|
|
{
|
|
testChar = p_userinfo.charAt(index);
|
|
|
|
if (testChar == '%')
|
|
{
|
|
if (index + 2 >= end ||!isHex(p_userinfo.charAt(index + 1))
|
|
||!isHex(p_userinfo.charAt(index + 2)))
|
|
{
|
|
throw new MalformedURIException(
|
|
"Userinfo contains invalid escape sequence!");
|
|
}
|
|
}
|
|
else if (!isUnreservedCharacter(testChar)
|
|
&& USERINFO_CHARACTERS.indexOf(testChar) == -1)
|
|
{
|
|
throw new MalformedURIException(
|
|
"Userinfo contains invalid character:" + testChar);
|
|
}
|
|
|
|
index++;
|
|
}
|
|
}
|
|
|
|
m_userinfo = p_userinfo;
|
|
}
|
|
|
|
/**
|
|
* Set the host for this URI. If null is passed in, the userinfo
|
|
* field is also set to null and the port is set to -1.
|
|
*
|
|
* @param p_host the host for this URI
|
|
*
|
|
* @throws MalformedURIException if p_host is not a valid IP
|
|
* address or DNS hostname.
|
|
*/
|
|
public void setHost(String p_host) throws MalformedURIException
|
|
{
|
|
|
|
if (p_host == null || p_host.trim().length() == 0)
|
|
{
|
|
m_host = p_host;
|
|
m_userinfo = null;
|
|
m_port = -1;
|
|
}
|
|
else if (!isWellFormedAddress(p_host))
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_HOST_ADDRESS_NOT_WELLFORMED, null)); //"Host is not a well formed address!");
|
|
}
|
|
|
|
m_host = p_host;
|
|
}
|
|
|
|
/**
|
|
* Set the port for this URI. -1 is used to indicate that the port is
|
|
* not specified, otherwise valid port numbers are between 0 and 65535.
|
|
* If a valid port number is passed in and the host field is null,
|
|
* an exception is thrown.
|
|
*
|
|
* @param p_port the port number for this URI
|
|
*
|
|
* @throws MalformedURIException if p_port is not -1 and not a
|
|
* valid port number
|
|
*/
|
|
public void setPort(int p_port) throws MalformedURIException
|
|
{
|
|
|
|
if (p_port >= 0 && p_port <= 65535)
|
|
{
|
|
if (m_host == null)
|
|
{
|
|
throw new MalformedURIException(
|
|
XMLMessages.createXMLMessage(XMLErrorResources.ER_PORT_WHEN_HOST_NULL, null)); //"Port cannot be set when host is null!");
|
|
}
|
|
}
|
|
else if (p_port != -1)
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_INVALID_PORT, null)); //"Invalid port number!");
|
|
}
|
|
|
|
m_port = p_port;
|
|
}
|
|
|
|
/**
|
|
* Set the path for this URI. If the supplied path is null, then the
|
|
* query string and fragment are set to null as well. If the supplied
|
|
* path includes a query string and/or fragment, these fields will be
|
|
* parsed and set as well. Note that, for URIs following the "generic
|
|
* URI" syntax, the path specified should start with a slash.
|
|
* For URIs that do not follow the generic URI syntax, this method
|
|
* sets the scheme-specific part.
|
|
*
|
|
* @param p_path the path for this URI (may be null)
|
|
*
|
|
* @throws MalformedURIException if p_path contains invalid
|
|
* characters
|
|
*/
|
|
public void setPath(String p_path) throws MalformedURIException
|
|
{
|
|
|
|
if (p_path == null)
|
|
{
|
|
m_path = null;
|
|
m_queryString = null;
|
|
m_fragment = null;
|
|
}
|
|
else
|
|
{
|
|
initializePath(p_path);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Append to the end of the path of this URI. If the current path does
|
|
* not end in a slash and the path to be appended does not begin with
|
|
* a slash, a slash will be appended to the current path before the
|
|
* new segment is added. Also, if the current path ends in a slash
|
|
* and the new segment begins with a slash, the extra slash will be
|
|
* removed before the new segment is appended.
|
|
*
|
|
* @param p_addToPath the new segment to be added to the current path
|
|
*
|
|
* @throws MalformedURIException if p_addToPath contains syntax
|
|
* errors
|
|
*/
|
|
public void appendPath(String p_addToPath) throws MalformedURIException
|
|
{
|
|
|
|
if (p_addToPath == null || p_addToPath.trim().length() == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (!isURIString(p_addToPath))
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_PATH_INVALID_CHAR, new Object[]{p_addToPath})); //"Path contains invalid character!");
|
|
}
|
|
|
|
if (m_path == null || m_path.trim().length() == 0)
|
|
{
|
|
if (p_addToPath.startsWith("/"))
|
|
{
|
|
m_path = p_addToPath;
|
|
}
|
|
else
|
|
{
|
|
m_path = "/" + p_addToPath;
|
|
}
|
|
}
|
|
else if (m_path.endsWith("/"))
|
|
{
|
|
if (p_addToPath.startsWith("/"))
|
|
{
|
|
m_path = m_path.concat(p_addToPath.substring(1));
|
|
}
|
|
else
|
|
{
|
|
m_path = m_path.concat(p_addToPath);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (p_addToPath.startsWith("/"))
|
|
{
|
|
m_path = m_path.concat(p_addToPath);
|
|
}
|
|
else
|
|
{
|
|
m_path = m_path.concat("/" + p_addToPath);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the query string for this URI. A non-null value is valid only
|
|
* if this is an URI conforming to the generic URI syntax and
|
|
* the path value is not null.
|
|
*
|
|
* @param p_queryString the query string for this URI
|
|
*
|
|
* @throws MalformedURIException if p_queryString is not null and this
|
|
* URI does not conform to the generic
|
|
* URI syntax or if the path is null
|
|
*/
|
|
public void setQueryString(String p_queryString)
|
|
throws MalformedURIException
|
|
{
|
|
|
|
if (p_queryString == null)
|
|
{
|
|
m_queryString = null;
|
|
}
|
|
else if (!isGenericURI())
|
|
{
|
|
throw new MalformedURIException(
|
|
"Query string can only be set for a generic URI!");
|
|
}
|
|
else if (getPath() == null)
|
|
{
|
|
throw new MalformedURIException(
|
|
"Query string cannot be set when path is null!");
|
|
}
|
|
else if (!isURIString(p_queryString))
|
|
{
|
|
throw new MalformedURIException(
|
|
"Query string contains invalid character!");
|
|
}
|
|
else
|
|
{
|
|
m_queryString = p_queryString;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the fragment for this URI. A non-null value is valid only
|
|
* if this is a URI conforming to the generic URI syntax and
|
|
* the path value is not null.
|
|
*
|
|
* @param p_fragment the fragment for this URI
|
|
*
|
|
* @throws MalformedURIException if p_fragment is not null and this
|
|
* URI does not conform to the generic
|
|
* URI syntax or if the path is null
|
|
*/
|
|
public void setFragment(String p_fragment) throws MalformedURIException
|
|
{
|
|
|
|
if (p_fragment == null)
|
|
{
|
|
m_fragment = null;
|
|
}
|
|
else if (!isGenericURI())
|
|
{
|
|
throw new MalformedURIException(
|
|
XMLMessages.createXMLMessage(XMLErrorResources.ER_FRAG_FOR_GENERIC_URI, null)); //"Fragment can only be set for a generic URI!");
|
|
}
|
|
else if (getPath() == null)
|
|
{
|
|
throw new MalformedURIException(
|
|
XMLMessages.createXMLMessage(XMLErrorResources.ER_FRAG_WHEN_PATH_NULL, null)); //"Fragment cannot be set when path is null!");
|
|
}
|
|
else if (!isURIString(p_fragment))
|
|
{
|
|
throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_FRAG_INVALID_CHAR, null)); //"Fragment contains invalid character!");
|
|
}
|
|
else
|
|
{
|
|
m_fragment = p_fragment;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determines if the passed-in Object is equivalent to this URI.
|
|
*
|
|
* @param p_test the Object to test for equality.
|
|
*
|
|
* @return true if p_test is a URI with all values equal to this
|
|
* URI, false otherwise
|
|
*/
|
|
@Override
|
|
public boolean equals(Object p_test)
|
|
{
|
|
|
|
if (p_test instanceof URI)
|
|
{
|
|
URI testURI = (URI) p_test;
|
|
|
|
if (((m_scheme == null && testURI.m_scheme == null) || (m_scheme != null && testURI.m_scheme != null && m_scheme.equals(
|
|
testURI.m_scheme))) && ((m_userinfo == null && testURI.m_userinfo == null) || (m_userinfo != null && testURI.m_userinfo != null && m_userinfo.equals(
|
|
testURI.m_userinfo))) && ((m_host == null && testURI.m_host == null) || (m_host != null && testURI.m_host != null && m_host.equals(
|
|
testURI.m_host))) && m_port == testURI.m_port && ((m_path == null && testURI.m_path == null) || (m_path != null && testURI.m_path != null && m_path.equals(
|
|
testURI.m_path))) && ((m_queryString == null && testURI.m_queryString == null) || (m_queryString != null && testURI.m_queryString != null && m_queryString.equals(
|
|
testURI.m_queryString))) && ((m_fragment == null && testURI.m_fragment == null) || (m_fragment != null && testURI.m_fragment != null && m_fragment.equals(
|
|
testURI.m_fragment))))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
int hash = 7;
|
|
hash = 59 * hash + Objects.hashCode(this.m_scheme);
|
|
hash = 59 * hash + Objects.hashCode(this.m_userinfo);
|
|
hash = 59 * hash + Objects.hashCode(this.m_host);
|
|
hash = 59 * hash + this.m_port;
|
|
hash = 59 * hash + Objects.hashCode(this.m_path);
|
|
hash = 59 * hash + Objects.hashCode(this.m_queryString);
|
|
hash = 59 * hash + Objects.hashCode(this.m_fragment);
|
|
return hash;
|
|
}
|
|
|
|
/**
|
|
* Get the URI as a string specification. See RFC 2396 Section 5.2.
|
|
*
|
|
* @return the URI string specification
|
|
*/
|
|
@Override
|
|
public String toString()
|
|
{
|
|
|
|
final StringBuilder uriSpecString = new StringBuilder();
|
|
|
|
if (m_scheme != null)
|
|
{
|
|
uriSpecString.append(m_scheme);
|
|
uriSpecString.append(':');
|
|
}
|
|
|
|
uriSpecString.append(getSchemeSpecificPart());
|
|
|
|
return uriSpecString.toString();
|
|
}
|
|
|
|
/**
|
|
* Get the indicator as to whether this URI uses the "generic URI"
|
|
* syntax.
|
|
*
|
|
* @return true if this URI uses the "generic URI" syntax, false
|
|
* otherwise
|
|
*/
|
|
public boolean isGenericURI()
|
|
{
|
|
|
|
// presence of the host (whether valid or empty) means
|
|
// double-slashes which means generic uri
|
|
return (m_host != null);
|
|
}
|
|
|
|
/**
|
|
* Determine whether a scheme conforms to the rules for a scheme name.
|
|
* A scheme is conformant if it starts with an alphanumeric, and
|
|
* contains only alphanumerics, '+','-' and '.'.
|
|
*
|
|
*
|
|
* @param p_scheme The sheme name to check
|
|
* @return true if the scheme is conformant, false otherwise
|
|
*/
|
|
public static boolean isConformantSchemeName(String p_scheme)
|
|
{
|
|
|
|
if (p_scheme == null || p_scheme.trim().length() == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (!isAlpha(p_scheme.charAt(0)))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
char testChar;
|
|
|
|
for (int i = 1; i < p_scheme.length(); i++)
|
|
{
|
|
testChar = p_scheme.charAt(i);
|
|
|
|
if (!isAlphanum(testChar) && SCHEME_CHARACTERS.indexOf(testChar) == -1)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Determine whether a string is syntactically capable of representing
|
|
* a valid IPv4 address or the domain name of a network host. A valid
|
|
* IPv4 address consists of four decimal digit groups separated by a
|
|
* '.'. A hostname consists of domain labels (each of which must
|
|
* begin and end with an alphanumeric but may contain '-') separated
|
|
* & by a '.'. See RFC 2396 Section 3.2.2.
|
|
*
|
|
*
|
|
* @param p_address The address string to check
|
|
* @return true if the string is a syntactically valid IPv4 address
|
|
* or hostname
|
|
*/
|
|
public static boolean isWellFormedAddress(String p_address)
|
|
{
|
|
|
|
if (p_address == null)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
String address = p_address.trim();
|
|
int addrLength = address.length();
|
|
|
|
if (addrLength == 0 || addrLength > 255)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (address.startsWith(".") || address.startsWith("-"))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// rightmost domain label starting with digit indicates IP address
|
|
// since top level domain label can only start with an alpha
|
|
// see RFC 2396 Section 3.2.2
|
|
int index = address.lastIndexOf('.');
|
|
|
|
if (address.endsWith("."))
|
|
{
|
|
index = address.substring(0, index).lastIndexOf('.');
|
|
}
|
|
|
|
if (index + 1 < addrLength && isDigit(p_address.charAt(index + 1)))
|
|
{
|
|
char testChar;
|
|
int numDots = 0;
|
|
|
|
// make sure that 1) we see only digits and dot separators, 2) that
|
|
// any dot separator is preceded and followed by a digit and
|
|
// 3) that we find 3 dots
|
|
for (int i = 0; i < addrLength; i++)
|
|
{
|
|
testChar = address.charAt(i);
|
|
|
|
if (testChar == '.')
|
|
{
|
|
if (!isDigit(address.charAt(i - 1))
|
|
|| (i + 1 < addrLength &&!isDigit(address.charAt(i + 1))))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
numDots++;
|
|
}
|
|
else if (!isDigit(testChar))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (numDots != 3)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
|
|
// domain labels can contain alphanumerics and '-"
|
|
// but must start and end with an alphanumeric
|
|
char testChar;
|
|
|
|
for (int i = 0; i < addrLength; i++)
|
|
{
|
|
testChar = address.charAt(i);
|
|
|
|
if (testChar == '.')
|
|
{
|
|
if (!isAlphanum(address.charAt(i - 1)))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (i + 1 < addrLength &&!isAlphanum(address.charAt(i + 1)))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else if (!isAlphanum(testChar) && testChar != '-')
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Determine whether a char is a digit.
|
|
*
|
|
*
|
|
* @param p_char the character to check
|
|
* @return true if the char is betweeen '0' and '9', false otherwise
|
|
*/
|
|
private static boolean isDigit(char p_char)
|
|
{
|
|
return p_char >= '0' && p_char <= '9';
|
|
}
|
|
|
|
/**
|
|
* Determine whether a character is a hexadecimal character.
|
|
*
|
|
*
|
|
* @param p_char the character to check
|
|
* @return true if the char is betweeen '0' and '9', 'a' and 'f'
|
|
* or 'A' and 'F', false otherwise
|
|
*/
|
|
private static boolean isHex(char p_char)
|
|
{
|
|
return (isDigit(p_char) || (p_char >= 'a' && p_char <= 'f')
|
|
|| (p_char >= 'A' && p_char <= 'F'));
|
|
}
|
|
|
|
/**
|
|
* Determine whether a char is an alphabetic character: a-z or A-Z
|
|
*
|
|
*
|
|
* @param p_char the character to check
|
|
* @return true if the char is alphabetic, false otherwise
|
|
*/
|
|
private static boolean isAlpha(char p_char)
|
|
{
|
|
return ((p_char >= 'a' && p_char <= 'z')
|
|
|| (p_char >= 'A' && p_char <= 'Z'));
|
|
}
|
|
|
|
/**
|
|
* Determine whether a char is an alphanumeric: 0-9, a-z or A-Z
|
|
*
|
|
*
|
|
* @param p_char the character to check
|
|
* @return true if the char is alphanumeric, false otherwise
|
|
*/
|
|
private static boolean isAlphanum(char p_char)
|
|
{
|
|
return (isAlpha(p_char) || isDigit(p_char));
|
|
}
|
|
|
|
/**
|
|
* Determine whether a character is a reserved character:
|
|
* ';', '/', '?', ':', '@', '&', '=', '+', '$' or ','
|
|
*
|
|
*
|
|
* @param p_char the character to check
|
|
* @return true if the string contains any reserved characters
|
|
*/
|
|
private static boolean isReservedCharacter(char p_char)
|
|
{
|
|
return RESERVED_CHARACTERS.indexOf(p_char) != -1;
|
|
}
|
|
|
|
/**
|
|
* Determine whether a char is an unreserved character.
|
|
*
|
|
*
|
|
* @param p_char the character to check
|
|
* @return true if the char is unreserved, false otherwise
|
|
*/
|
|
private static boolean isUnreservedCharacter(char p_char)
|
|
{
|
|
return (isAlphanum(p_char) || MARK_CHARACTERS.indexOf(p_char) != -1);
|
|
}
|
|
|
|
/**
|
|
* Determine whether a given string contains only URI characters (also
|
|
* called "uric" in RFC 2396). uric consist of all reserved
|
|
* characters, unreserved characters and escaped characters.
|
|
*
|
|
*
|
|
* @param p_uric URI string
|
|
* @return true if the string is comprised of uric, false otherwise
|
|
*/
|
|
private static boolean isURIString(String p_uric)
|
|
{
|
|
|
|
if (p_uric == null)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
int end = p_uric.length();
|
|
char testChar = '\0';
|
|
|
|
for (int i = 0; i < end; i++)
|
|
{
|
|
testChar = p_uric.charAt(i);
|
|
|
|
if (testChar == '%')
|
|
{
|
|
if (i + 2 >= end ||!isHex(p_uric.charAt(i + 1))
|
|
||!isHex(p_uric.charAt(i + 2)))
|
|
{
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
i += 2;
|
|
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (isReservedCharacter(testChar) || isUnreservedCharacter(testChar))
|
|
{
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|