--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.xml/share/classes/com/sun/org/apache/xml/internal/utils/URI.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,1691 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/*
+ * 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.
+ */
+
+package com.sun.org.apache.xml.internal.utils;
+
+import java.io.IOException;
+import java.io.Serializable;
+
+import com.sun.org.apache.xml.internal.res.XMLErrorResources;
+import com.sun.org.apache.xml.internal.res.XMLMessages;
+import java.util.Objects;
+
+/**
+ * A class to represent a Uniform Resource Identifier (URI). This class
+ * is designed to handle the parsing of URIs and provide access to
+ * the various components (scheme, host, port, userinfo, path, query
+ * string and fragment) that may constitute a URI.
+ * <p>
+ * Parsing of a URI specification is done according to the URI
+ * syntax described in RFC 2396
+ * <http://www.ietf.org/rfc/rfc2396.txt?number=2396>. Every URI consists
+ * of a scheme, followed by a colon (':'), followed by a scheme-specific
+ * part. For URIs that follow the "generic URI" syntax, the scheme-
+ * specific part begins with two slashes ("//") and may be followed
+ * by an authority segment (comprised of user information, host, and
+ * port), path segment, query segment and fragment. Note that RFC 2396
+ * no longer specifies the use of the parameters segment and excludes
+ * the "user:password" syntax as part of the authority segment. If
+ * "user:password" appears in a URI, the entire user/password string
+ * is stored as userinfo.
+ * <p>
+ * For URIs that do not follow the "generic URI" syntax (e.g. mailto),
+ * the entire scheme-specific part is treated as the "path" portion
+ * of the URI.
+ * <p>
+ * Note that, unlike the java.net.URL class, this class does not provide
+ * any built-in network access functionality nor does it provide any
+ * scheme-specific functionality (for example, it does not know a
+ * default port for a specific scheme). Rather, it only knows the
+ * grammar and basic set of operations that can be applied to a URI.
+ *
+ *
+ */
+public class URI implements Serializable
+{
+ static final long serialVersionUID = 7096266377907081897L;
+
+ /**
+ * MalformedURIExceptions are thrown in the process of building a URI
+ * or setting fields on a URI when an operation would result in an
+ * invalid URI specification.
+ *
+ */
+ public static class MalformedURIException extends IOException
+ {
+
+ /**
+ * Constructs a <code>MalformedURIException</code> with no specified
+ * detail message.
+ */
+ public MalformedURIException()
+ {
+ super();
+ }
+
+ /**
+ * Constructs a <code>MalformedURIException</code> with the
+ * specified detail message.
+ *
+ * @param p_msg the detail message.
+ */
+ public MalformedURIException(String p_msg)
+ {
+ super(p_msg);
+ }
+ }
+
+ /** reserved characters */
+ private static final String RESERVED_CHARACTERS = ";/?:@&=+$,";
+
+ /**
+ * URI punctuation mark characters - these, combined with
+ * alphanumerics, constitute the "unreserved" characters
+ */
+ private static final String MARK_CHARACTERS = "-_.!~*'() ";
+
+ /** scheme can be composed of alphanumerics and these characters */
+ private static final String SCHEME_CHARACTERS = "+-.";
+
+ /**
+ * userinfo can be composed of unreserved, escaped and these
+ * characters
+ */
+ private static final String USERINFO_CHARACTERS = ";:&=+$,";
+
+ /** Stores the scheme (usually the protocol) for this URI.
+ * @serial */
+ private String m_scheme = null;
+
+ /** If specified, stores the userinfo for this URI; otherwise null.
+ * @serial */
+ private String m_userinfo = null;
+
+ /** If specified, stores the host for this URI; otherwise null.
+ * @serial */
+ private String m_host = null;
+
+ /** If specified, stores the port for this URI; otherwise -1.
+ * @serial */
+ private int m_port = -1;
+
+ /** If specified, stores the path for this URI; otherwise null.
+ * @serial */
+ private String m_path = null;
+
+ /**
+ * If specified, stores the query string for this URI; otherwise
+ * null.
+ * @serial
+ */
+ private String m_queryString = null;
+
+ /** If specified, stores the fragment for this URI; otherwise null.
+ * @serial */
+ private String m_fragment = null;
+
+ /** Indicate whether in DEBUG mode */
+ private static boolean DEBUG = false;
+
+ /**
+ * Construct a new and uninitialized URI.
+ */
+ public URI(){}
+
+ /**
+ * Construct a new URI from another URI. All fields for this URI are
+ * set equal to the fields of the URI passed in.
+ *
+ * @param p_other the URI to copy (cannot be null)
+ */
+ public URI(URI p_other)
+ {
+ initialize(p_other);
+ }
+
+ /**
+ * Construct a new URI from a URI specification string. If the
+ * specification follows the "generic URI" syntax, (two slashes
+ * following the first colon), the specification will be parsed
+ * accordingly - setting the scheme, userinfo, host,port, path, query
+ * string and fragment fields as necessary. If the specification does
+ * not follow the "generic URI" syntax, the specification is parsed
+ * into a scheme and scheme-specific part (stored as the path) only.
+ *
+ * @param p_uriSpec the URI specification string (cannot be null or
+ * empty)
+ *
+ * @throws MalformedURIException if p_uriSpec violates any syntax
+ * rules
+ */
+ public URI(String p_uriSpec) throws MalformedURIException
+ {
+ this((URI) null, p_uriSpec);
+ }
+
+ /**
+ * Construct a new URI from a base URI and a URI specification string.
+ * The URI specification string may be a relative URI.
+ *
+ * @param p_base the base URI (cannot be null if p_uriSpec is null or
+ * empty)
+ * @param p_uriSpec the URI specification string (cannot be null or
+ * empty if p_base is null)
+ *
+ * @throws MalformedURIException if p_uriSpec violates any syntax
+ * rules
+ */
+ public URI(URI p_base, String p_uriSpec) throws MalformedURIException
+ {
+ initialize(p_base, p_uriSpec);
+ }
+
+ /**
+ * Construct a new URI that does not follow the generic URI syntax.
+ * Only the scheme and scheme-specific part (stored as the path) are
+ * initialized.
+ *
+ * @param p_scheme the URI scheme (cannot be null or empty)
+ * @param p_schemeSpecificPart the scheme-specific part (cannot be
+ * null or empty)
+ *
+ * @throws MalformedURIException if p_scheme violates any
+ * syntax rules
+ */
+ public URI(String p_scheme, String p_schemeSpecificPart)
+ throws MalformedURIException
+ {
+
+ if (p_scheme == null || p_scheme.trim().length() == 0)
+ {
+ throw new MalformedURIException(
+ "Cannot construct URI with null/empty scheme!");
+ }
+
+ if (p_schemeSpecificPart == null
+ || p_schemeSpecificPart.trim().length() == 0)
+ {
+ throw new MalformedURIException(
+ "Cannot construct URI with null/empty scheme-specific part!");
+ }
+
+ setScheme(p_scheme);
+ setPath(p_schemeSpecificPart);
+ }
+
+ /**
+ * Construct a new URI that follows the generic URI syntax from its
+ * component parts. Each component is validated for syntax and some
+ * basic semantic checks are performed as well. See the individual
+ * setter methods for specifics.
+ *
+ * @param p_scheme the URI scheme (cannot be null or empty)
+ * @param p_host the hostname or IPv4 address for the URI
+ * @param p_path the URI path - if the path contains '?' or '#',
+ * then the query string and/or fragment will be
+ * set from the path; however, if the query and
+ * fragment are specified both in the path and as
+ * separate parameters, an exception is thrown
+ * @param p_queryString the URI query string (cannot be specified
+ * if path is null)
+ * @param p_fragment the URI fragment (cannot be specified if path
+ * is null)
+ *
+ * @throws MalformedURIException if any of the parameters violates
+ * syntax rules or semantic rules
+ */
+ public URI(String p_scheme, String p_host, String p_path, String p_queryString, String p_fragment)
+ throws MalformedURIException
+ {
+ this(p_scheme, null, p_host, -1, p_path, p_queryString, p_fragment);
+ }
+
+ /**
+ * Construct a new URI that follows the generic URI syntax from its
+ * component parts. Each component is validated for syntax and some
+ * basic semantic checks are performed as well. See the individual
+ * setter methods for specifics.
+ *
+ * @param p_scheme the URI scheme (cannot be null or empty)
+ * @param p_userinfo the URI userinfo (cannot be specified if host
+ * is null)
+ * @param p_host the hostname or IPv4 address for the URI
+ * @param p_port the URI port (may be -1 for "unspecified"; cannot
+ * be specified if host is null)
+ * @param p_path the URI path - if the path contains '?' or '#',
+ * then the query string and/or fragment will be
+ * set from the path; however, if the query and
+ * fragment are specified both in the path and as
+ * separate parameters, an exception is thrown
+ * @param p_queryString the URI query string (cannot be specified
+ * if path is null)
+ * @param p_fragment the URI fragment (cannot be specified if path
+ * is null)
+ *
+ * @throws MalformedURIException if any of the parameters violates
+ * syntax rules or semantic rules
+ */
+ public URI(String p_scheme, String p_userinfo, String p_host, int p_port, String p_path, String p_queryString, String p_fragment)
+ throws MalformedURIException
+ {
+
+ if (p_scheme == null || p_scheme.trim().length() == 0)
+ {
+ throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_REQUIRED, null)); //"Scheme is required!");
+ }
+
+ if (p_host == null)
+ {
+ if (p_userinfo != null)
+ {
+ throw new MalformedURIException(
+ XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_USERINFO_IF_NO_HOST, null)); //"Userinfo may not be specified if host is not specified!");
+ }
+
+ if (p_port != -1)
+ {
+ throw new MalformedURIException(
+ XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_PORT_IF_NO_HOST, null)); //"Port may not be specified if host is not specified!");
+ }
+ }
+
+ if (p_path != null)
+ {
+ if (p_path.indexOf('?') != -1 && p_queryString != null)
+ {
+ throw new MalformedURIException(
+ XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_QUERY_STRING_IN_PATH, null)); //"Query string cannot be specified in path and query string!");
+ }
+
+ if (p_path.indexOf('#') != -1 && p_fragment != null)
+ {
+ throw new MalformedURIException(
+ XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_FRAGMENT_STRING_IN_PATH, null)); //"Fragment cannot be specified in both the path and fragment!");
+ }
+ }
+
+ setScheme(p_scheme);
+ setHost(p_host);
+ setPort(p_port);
+ setUserinfo(p_userinfo);
+ setPath(p_path);
+ setQueryString(p_queryString);
+ setFragment(p_fragment);
+ }
+
+ /**
+ * Initialize all fields of this URI from another URI.
+ *
+ * @param p_other the URI to copy (cannot be null)
+ */
+ private void initialize(URI p_other)
+ {
+
+ m_scheme = p_other.getScheme();
+ m_userinfo = p_other.getUserinfo();
+ m_host = p_other.getHost();
+ m_port = p_other.getPort();
+ m_path = p_other.getPath();
+ m_queryString = p_other.getQueryString();
+ m_fragment = p_other.getFragment();
+ }
+
+ /**
+ * Initializes this URI from a base URI and a URI specification string.
+ * See RFC 2396 Section 4 and Appendix B for specifications on parsing
+ * the URI and Section 5 for specifications on resolving relative URIs
+ * and relative paths.
+ *
+ * @param p_base the base URI (may be null if p_uriSpec is an absolute
+ * URI)
+ * @param p_uriSpec the URI spec string which may be an absolute or
+ * relative URI (can only be null/empty if p_base
+ * is not null)
+ *
+ * @throws MalformedURIException if p_base is null and p_uriSpec
+ * is not an absolute URI or if
+ * p_uriSpec violates syntax rules
+ */
+ private void initialize(URI p_base, String p_uriSpec)
+ throws MalformedURIException
+ {
+
+ if (p_base == null
+ && (p_uriSpec == null || p_uriSpec.trim().length() == 0))
+ {
+ throw new MalformedURIException(
+ XMLMessages.createXMLMessage(XMLErrorResources.ER_CANNOT_INIT_URI_EMPTY_PARMS, null)); //"Cannot initialize URI with empty parameters.");
+ }
+
+ // just make a copy of the base if spec is empty
+ if (p_uriSpec == null || p_uriSpec.trim().length() == 0)
+ {
+ initialize(p_base);
+
+ return;
+ }
+
+ String uriSpec = p_uriSpec.trim();
+ int uriSpecLen = uriSpec.length();
+ int index = 0;
+
+ // check for scheme
+ int colonIndex = uriSpec.indexOf(':');
+ if (colonIndex < 0)
+ {
+ if (p_base == null)
+ {
+ throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_SCHEME_IN_URI, new Object[]{uriSpec})); //"No scheme found in URI: "+uriSpec);
+ }
+ }
+ else
+ {
+ initializeScheme(uriSpec);
+ uriSpec = uriSpec.substring(colonIndex+1);
+ // This is a fix for XALANJ-2059.
+ if(m_scheme != null && p_base != null)
+ {
+ // a) If <uriSpec> starts with a slash (/), it means <uriSpec> is absolute
+ // and p_base can be ignored.
+ // For example,
+ // uriSpec = file:/myDIR/myXSLFile.xsl
+ // p_base = file:/myWork/
+ //
+ // Here, uriSpec has absolute path after scheme file and :
+ // Hence p_base can be ignored.
+ //
+ // b) Similarily, according to RFC 2396, uri is resolved for <uriSpec> relative to <p_base>
+ // if scheme in <uriSpec> is same as scheme in <p_base>, else p_base can be ignored.
+ //
+ // c) if <p_base> is not hierarchical, it can be ignored.
+ //
+ if(uriSpec.startsWith("/") || !m_scheme.equals(p_base.m_scheme) || !p_base.getSchemeSpecificPart().startsWith("/"))
+ {
+ p_base = null;
+ }
+ }
+ // Fix for XALANJ-2059
+ uriSpecLen = uriSpec.length();
+ }
+
+ // two slashes means generic URI syntax, so we get the authority
+ if (((index + 1) < uriSpecLen)
+ && (uriSpec.substring(index).startsWith("//")))
+ {
+ 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 == '#')
+ {
+ break;
+ }
+
+ index++;
+ }
+
+ // 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;
+ }
+}