| /* |
| * 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 org.apache.axis2.databinding.types; |
| |
| import java.io.IOException; |
| import java.io.Serializable; |
| |
| /** |
| * ******************************************************************* <i>Axis Note: This class was |
| * 'borrowed' from Xerces 2.0.2</i> |
| * <p/> |
| * 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 <a |
| * href="http://www.ietf.org/rfc/rfc2396.txt?number=2396">RFC 2396</a>, and amended by <a |
| * href="http://www.ietf.org/rfc/rfc2732.txt?number=2732">RFC 2732</a>. |
| * <p/> |
| * Every absolute 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. |
| * <p/> |
| * ******************************************************************** |
| */ |
| public class URI implements Serializable { |
| |
| private static final long serialVersionUID = 2172306044361227627L; |
| |
| |
| /** |
| * **************************************************************** 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. |
| * <p/> |
| * ****************************************************************** |
| */ |
| public static class MalformedURIException extends IOException { |
| |
| private static final long serialVersionUID = -8488692760975768757L; |
| |
| /** |
| * *************************************************************** 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); |
| } |
| } |
| |
| private static final byte [] fgLookupTable = new byte[128]; |
| |
| /** |
| * Character Classes |
| */ |
| |
| /** reserved characters ;/?:@&=+$,[] */ |
| //RFC 2732 added '[' and ']' as reserved characters |
| private static final int RESERVED_CHARACTERS = 0x01; |
| |
| /** |
| * URI punctuation mark characters: -_.!~*'() - these, combined with alphanumerics, constitute the |
| * "unreserved" characters |
| */ |
| private static final int MARK_CHARACTERS = 0x02; |
| |
| /** scheme can be composed of alphanumerics and these characters: +-. */ |
| private static final int SCHEME_CHARACTERS = 0x04; |
| |
| /** userinfo can be composed of unreserved, escaped and these characters: ;:&=+$, */ |
| private static final int USERINFO_CHARACTERS = 0x08; |
| |
| /** ASCII letter characters */ |
| private static final int ASCII_ALPHA_CHARACTERS = 0x10; |
| |
| /** ASCII digit characters */ |
| private static final int ASCII_DIGIT_CHARACTERS = 0x20; |
| |
| /** ASCII hex characters */ |
| private static final int ASCII_HEX_CHARACTERS = 0x40; |
| |
| /** Path characters */ |
| private static final int PATH_CHARACTERS = 0x80; |
| |
| /** Mask for alpha-numeric characters */ |
| private static final int MASK_ALPHA_NUMERIC = ASCII_ALPHA_CHARACTERS | ASCII_DIGIT_CHARACTERS; |
| |
| /** Mask for unreserved characters */ |
| private static final int MASK_UNRESERVED_MASK = MASK_ALPHA_NUMERIC | MARK_CHARACTERS; |
| |
| /** Mask for URI allowable characters except for % */ |
| private static final int MASK_URI_CHARACTER = MASK_UNRESERVED_MASK | RESERVED_CHARACTERS; |
| |
| /** Mask for scheme characters */ |
| private static final int MASK_SCHEME_CHARACTER = MASK_ALPHA_NUMERIC | SCHEME_CHARACTERS; |
| |
| /** Mask for userinfo characters */ |
| private static final int MASK_USERINFO_CHARACTER = MASK_UNRESERVED_MASK | USERINFO_CHARACTERS; |
| |
| /** Mask for path characters */ |
| private static final int MASK_PATH_CHARACTER = MASK_UNRESERVED_MASK | PATH_CHARACTERS; |
| |
| static { |
| // Add ASCII Digits and ASCII Hex Numbers |
| for (int i = '0'; i <= '9'; ++i) { |
| fgLookupTable[i] |= ASCII_DIGIT_CHARACTERS | ASCII_HEX_CHARACTERS; |
| } |
| |
| // Add ASCII Letters and ASCII Hex Numbers |
| for (int i = 'A'; i <= 'F'; ++i) { |
| fgLookupTable[i] |= ASCII_ALPHA_CHARACTERS | ASCII_HEX_CHARACTERS; |
| fgLookupTable[i + 0x00000020] |= ASCII_ALPHA_CHARACTERS | ASCII_HEX_CHARACTERS; |
| } |
| |
| // Add ASCII Letters |
| for (int i = 'G'; i <= 'Z'; ++i) { |
| fgLookupTable[i] |= ASCII_ALPHA_CHARACTERS; |
| fgLookupTable[i + 0x00000020] |= ASCII_ALPHA_CHARACTERS; |
| } |
| |
| // Add Reserved Characters |
| fgLookupTable[';'] |= RESERVED_CHARACTERS; |
| fgLookupTable['/'] |= RESERVED_CHARACTERS; |
| fgLookupTable['?'] |= RESERVED_CHARACTERS; |
| fgLookupTable[':'] |= RESERVED_CHARACTERS; |
| fgLookupTable['@'] |= RESERVED_CHARACTERS; |
| fgLookupTable['&'] |= RESERVED_CHARACTERS; |
| fgLookupTable['='] |= RESERVED_CHARACTERS; |
| fgLookupTable['+'] |= RESERVED_CHARACTERS; |
| fgLookupTable['$'] |= RESERVED_CHARACTERS; |
| fgLookupTable[','] |= RESERVED_CHARACTERS; |
| fgLookupTable['['] |= RESERVED_CHARACTERS; |
| fgLookupTable[']'] |= RESERVED_CHARACTERS; |
| |
| // Add Mark Characters |
| fgLookupTable['-'] |= MARK_CHARACTERS; |
| fgLookupTable['_'] |= MARK_CHARACTERS; |
| fgLookupTable['.'] |= MARK_CHARACTERS; |
| fgLookupTable['!'] |= MARK_CHARACTERS; |
| fgLookupTable['~'] |= MARK_CHARACTERS; |
| fgLookupTable['*'] |= MARK_CHARACTERS; |
| fgLookupTable['\''] |= MARK_CHARACTERS; |
| fgLookupTable['('] |= MARK_CHARACTERS; |
| fgLookupTable[')'] |= MARK_CHARACTERS; |
| |
| // Add Scheme Characters |
| fgLookupTable['+'] |= SCHEME_CHARACTERS; |
| fgLookupTable['-'] |= SCHEME_CHARACTERS; |
| fgLookupTable['.'] |= SCHEME_CHARACTERS; |
| |
| // Add Userinfo Characters |
| fgLookupTable[';'] |= USERINFO_CHARACTERS; |
| fgLookupTable[':'] |= USERINFO_CHARACTERS; |
| fgLookupTable['&'] |= USERINFO_CHARACTERS; |
| fgLookupTable['='] |= USERINFO_CHARACTERS; |
| fgLookupTable['+'] |= USERINFO_CHARACTERS; |
| fgLookupTable['$'] |= USERINFO_CHARACTERS; |
| fgLookupTable[','] |= USERINFO_CHARACTERS; |
| |
| // Add Path Characters |
| fgLookupTable[';'] |= PATH_CHARACTERS; |
| fgLookupTable['/'] |= PATH_CHARACTERS; |
| fgLookupTable[':'] |= PATH_CHARACTERS; |
| fgLookupTable['@'] |= PATH_CHARACTERS; |
| fgLookupTable['&'] |= PATH_CHARACTERS; |
| fgLookupTable['='] |= PATH_CHARACTERS; |
| fgLookupTable['+'] |= PATH_CHARACTERS; |
| fgLookupTable['$'] |= PATH_CHARACTERS; |
| fgLookupTable[','] |= PATH_CHARACTERS; |
| } |
| |
| /** Stores the scheme (usually the protocol) for this URI. */ |
| private String m_scheme = null; |
| |
| /** If specified, stores the userinfo for this URI; otherwise null */ |
| private String m_userinfo = null; |
| |
| /** If specified, stores the host for this URI; otherwise null */ |
| private String m_host = null; |
| |
| /** If specified, stores the port for this URI; otherwise -1 */ |
| private int m_port = -1; |
| |
| /** If specified, stores the registry based authority for this URI; otherwise -1 */ |
| private String m_regAuthority = null; |
| |
| /** If specified, stores the path for this URI; otherwise null */ |
| private String m_path = null; |
| |
| /** If specified, stores the query string for this URI; otherwise null. */ |
| private String m_queryString = null; |
| |
| /** If specified, stores the fragment for this URI; otherwise null */ |
| private String m_fragment; |
| |
| /** 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, IPv4 address or IPv6 reference 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, IPv4 address or IPv6 reference 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("Scheme is required!"); |
| } |
| |
| if (p_host == null) { |
| if (p_userinfo != null) { |
| throw new MalformedURIException( |
| "Userinfo may not be specified if host is not specified!"); |
| } |
| if (p_port != -1) { |
| throw new MalformedURIException( |
| "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( |
| "Query string cannot be specified in path and query string!"); |
| } |
| |
| if (p_path.indexOf('#') != -1 && p_fragment != null) { |
| throw new MalformedURIException( |
| "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_regAuthority = p_other.getRegBasedAuthority(); |
| 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 { |
| |
| String uriSpec = p_uriSpec; |
| int uriSpecLen = (uriSpec != null) ? uriSpec.length() : 0; |
| |
| if (p_base == null && uriSpecLen == 0) { |
| throw new MalformedURIException( |
| "Cannot initialize URI with empty parameters."); |
| } |
| |
| // just make a copy of the base if spec is empty |
| if (uriSpecLen == 0) { |
| initialize(p_base); |
| return; |
| } |
| |
| int index = 0; |
| |
| // Check for scheme, which must be before '/', '?' or '#'. Also handle |
| // names with DOS drive letters ('D:'), so 1-character schemes are not |
| // allowed. |
| int colonIdx = uriSpec.indexOf(':'); |
| if (colonIdx != -1) { |
| final int searchFrom = colonIdx - 1; |
| // search backwards starting from character before ':'. |
| int slashIdx = uriSpec.lastIndexOf('/', searchFrom); |
| int queryIdx = uriSpec.lastIndexOf('?', searchFrom); |
| int fragmentIdx = uriSpec.lastIndexOf('#', searchFrom); |
| |
| if (colonIdx < 2 || slashIdx != -1 || |
| queryIdx != -1 || fragmentIdx != -1) { |
| // A standalone base is a valid URI according to spec |
| if (colonIdx == 0 || (p_base == null && fragmentIdx != 0)) { |
| throw new MalformedURIException("No scheme found in URI."); |
| } |
| } else { |
| initializeScheme(uriSpec); |
| index = m_scheme.length() + 1; |
| |
| // Neither 'scheme:' or 'scheme:#fragment' are valid URIs. |
| if (colonIdx == uriSpecLen - 1 || uriSpec.charAt(colonIdx + 1) == '#') { |
| throw new MalformedURIException("Scheme specific part cannot be empty."); |
| } |
| } |
| } |
| // Two slashes means we may have authority, but definitely means we're either |
| // matching net_path or abs_path. These two productions are ambiguous in that |
| // every net_path (except those containing an IPv6Reference) is an abs_path. |
| // RFC 2396 resolves this ambiguity by applying a greedy left most matching rule. |
| // Try matching net_path first, and if that fails we don't have authority so |
| // then attempt to match abs_path. |
| // |
| // net_path = "//" authority [ abs_path ] |
| // abs_path = "/" path_segments |
| if (((index + 1) < uriSpecLen) && |
| (uriSpec.charAt(index) == '/' && uriSpec.charAt(index + 1) == '/')) { |
| index += 2; |
| int startPos = index; |
| |
| // Authority will be everything up to path, query or fragment |
| char testChar = '\0'; |
| while (index < uriSpecLen) { |
| testChar = uriSpec.charAt(index); |
| if (testChar == '/' || testChar == '?' || testChar == '#') { |
| break; |
| } |
| index++; |
| } |
| |
| // Attempt to parse authority. If the section is an empty string |
| // this is a valid server based authority, so set the host to this |
| // value. |
| if (index > startPos) { |
| // If we didn't find authority we need to back up. Attempt to |
| // match against abs_path next. |
| if (!initializeAuthority(uriSpec.substring(startPos, index))) { |
| index = startPos - 2; |
| } |
| } else { |
| m_host = ""; |
| } |
| } |
| |
| initializePath(uriSpec, 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_regAuthority == null) { |
| m_scheme = p_base.getScheme(); |
| m_userinfo = p_base.getUserinfo(); |
| m_host = p_base.getHost(); |
| m_port = p_base.getPort(); |
| m_regAuthority = p_base.getRegBasedAuthority(); |
| 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(); |
| } else { |
| return; |
| } |
| |
| // 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_regAuthority == null) { |
| m_userinfo = p_base.getUserinfo(); |
| m_host = p_base.getHost(); |
| m_port = p_base.getPort(); |
| m_regAuthority = p_base.getRegBasedAuthority(); |
| } 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 && basePath.length() > 0) { |
| int lastSlash = basePath.lastIndexOf('/'); |
| if (lastSlash != -1) { |
| path = basePath.substring(0, lastSlash + 1); |
| } |
| } else if (m_path.length() > 0) { |
| path = "/"; |
| } |
| |
| // 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("/../", index)) > 0) { |
| tempString = path.substring(0, path.indexOf("/../")); |
| segIndex = tempString.lastIndexOf('/'); |
| if (segIndex != -1) { |
| if (!tempString.substring(segIndex).equals("..")) { |
| path = path.substring(0, segIndex + 1).concat(path.substring(index + 4)); |
| index = segIndex; |
| } else |
| index += 4; |
| } else |
| 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("No scheme found in URI."); |
| } else { |
| setScheme(scheme); |
| } |
| } |
| |
| /** |
| * Initialize the authority (either server or registry based) for this URI from a URI string |
| * spec. |
| * |
| * @param p_uriSpec the URI specification (cannot be null) |
| * @return true if the given string matched server or registry based authority |
| */ |
| private boolean initializeAuthority(String p_uriSpec) { |
| |
| int index = 0; |
| int start = 0; |
| int end = p_uriSpec.length(); |
| |
| char testChar = '\0'; |
| String userinfo = null; |
| |
| // userinfo is everything up to @ |
| 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 last ':', or up to |
| // and including ']' if followed by ':'. |
| String host = null; |
| start = index; |
| boolean hasPort = false; |
| if (index < end) { |
| if (p_uriSpec.charAt(start) == '[') { |
| int bracketIndex = p_uriSpec.indexOf(']', start); |
| index = (bracketIndex != -1) ? bracketIndex : end; |
| if (index + 1 < end && p_uriSpec.charAt(index + 1) == ':') { |
| ++index; |
| hasPort = true; |
| } else { |
| index = end; |
| } |
| } else { |
| int colonIndex = p_uriSpec.lastIndexOf(':', end); |
| index = (colonIndex > start) ? colonIndex : end; |
| hasPort = (index != end); |
| } |
| } |
| host = p_uriSpec.substring(start, index); |
| int port = -1; |
| if (host.length() > 0) { |
| // port |
| if (hasPort) { |
| index++; |
| start = index; |
| while (index < end) { |
| index++; |
| } |
| String portStr = p_uriSpec.substring(start, index); |
| if (portStr.length() > 0) { |
| // REVISIT: Remove this code. |
| /** for (int i = 0; i < portStr.length(); i++) { |
| if (!isDigit(portStr.charAt(i))) { |
| throw new MalformedURIException( |
| portStr + |
| " is invalid. Port should only contain digits!"); |
| } |
| }**/ |
| // REVISIT: Remove this code. |
| // Store port value as string instead of integer. |
| try { |
| port = Integer.parseInt(portStr); |
| if (port == -1) --port; |
| } |
| catch (NumberFormatException nfe) { |
| port = -2; |
| } |
| } |
| } |
| } |
| |
| if (isValidServerBasedAuthority(host, port, userinfo)) { |
| m_host = host; |
| m_port = port; |
| m_userinfo = userinfo; |
| return true; |
| } |
| // Note: Registry based authority is being removed from a |
| // new spec for URI which would obsolete RFC 2396. If the |
| // spec is added to XML errata, processing of reg_name |
| // needs to be removed. - mrglavas. |
| else if (isValidRegistryBasedAuthority(p_uriSpec)) { |
| m_regAuthority = p_uriSpec; |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Determines whether the components host, port, and user info are valid as a server authority. |
| * |
| * @param host the host component of authority |
| * @param port the port number component of authority |
| * @param userinfo the user info component of authority |
| * @return true if the given host, port, and userinfo compose a valid server authority |
| */ |
| private boolean isValidServerBasedAuthority(String host, int port, String userinfo) { |
| |
| // Check if the host is well formed. |
| if (!isWellFormedAddress(host)) { |
| return false; |
| } |
| |
| // Check that port is well formed if it exists. |
| // REVISIT: There's no restriction on port value ranges, but |
| // perform the same check as in setPort to be consistent. Pass |
| // in a string to this method instead of an integer. |
| if (port < -1 || port > 65535) { |
| return false; |
| } |
| |
| // Check that userinfo is well formed if it exists. |
| if (userinfo != null) { |
| // Userinfo can contain alphanumerics, mark characters, escaped |
| // and ';',':','&','=','+','$',',' |
| int index = 0; |
| int end = userinfo.length(); |
| char testChar = '\0'; |
| while (index < end) { |
| testChar = userinfo.charAt(index); |
| if (testChar == '%') { |
| if (index + 2 >= end || |
| !isHex(userinfo.charAt(index + 1)) || |
| !isHex(userinfo.charAt(index + 2))) { |
| return false; |
| } |
| index += 2; |
| } else if (!isUserinfoCharacter(testChar)) { |
| return false; |
| } |
| ++index; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Determines whether the given string is a registry based authority. |
| * |
| * @param authority the authority component of a URI |
| * @return true if the given string is a registry based authority |
| */ |
| private boolean isValidRegistryBasedAuthority(String authority) { |
| int index = 0; |
| int end = authority.length(); |
| char testChar; |
| |
| while (index < end) { |
| testChar = authority.charAt(index); |
| |
| // check for valid escape sequence |
| if (testChar == '%') { |
| if (index + 2 >= end || |
| !isHex(authority.charAt(index + 1)) || |
| !isHex(authority.charAt(index + 2))) { |
| return false; |
| } |
| index += 2; |
| } |
| // can check against path characters because the set |
| // is the same except for '/' which we've already excluded. |
| else if (!isPathCharacter(testChar)) { |
| return false; |
| } |
| ++index; |
| } |
| return true; |
| } |
| |
| /** |
| * Initialize the path for this URI from a URI string spec. |
| * |
| * @param p_uriSpec the URI specification (cannot be null) |
| * @param p_nStartIndex the index to begin scanning from |
| * @throws MalformedURIException if p_uriSpec violates syntax rules |
| */ |
| private void initializePath(String p_uriSpec, int p_nStartIndex) |
| throws MalformedURIException { |
| if (p_uriSpec == null) { |
| throw new MalformedURIException( |
| "Cannot initialize path from null string!"); |
| } |
| |
| int index = p_nStartIndex; |
| int start = p_nStartIndex; |
| int end = p_uriSpec.length(); |
| char testChar = '\0'; |
| |
| // path - everything up to query string or fragment |
| if (start < end) { |
| // RFC 2732 only allows '[' and ']' to appear in the opaque part. |
| if (getScheme() == null || p_uriSpec.charAt(start) == '/') { |
| |
| // Scan path. |
| // abs_path = "/" path_segments |
| // rel_path = rel_segment [ abs_path ] |
| while (index < end) { |
| testChar = p_uriSpec.charAt(index); |
| |
| // 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( |
| "Path contains invalid escape sequence!"); |
| } |
| index += 2; |
| } |
| // Path segments cannot contain '[' or ']' since pchar |
| // production was not changed by RFC 2732. |
| else if (!isPathCharacter(testChar)) { |
| if (testChar == '?' || testChar == '#') { |
| break; |
| } |
| throw new MalformedURIException( |
| "Path contains invalid character: " + testChar); |
| } |
| ++index; |
| } |
| } else { |
| |
| // Scan opaque part. |
| // opaque_part = uric_no_slash *uric |
| 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( |
| "Opaque part contains invalid escape sequence!"); |
| } |
| index += 2; |
| } |
| // If the scheme specific part is opaque, it can contain '[' |
| // and ']'. uric_no_slash wasn't modified by RFC 2732, which |
| // I've interpreted as an error in the spec, since the |
| // production should be equivalent to (uric - '/'), and uric |
| // contains '[' and ']'. - mrglavas |
| else if (!isURICharacter(testChar)) { |
| throw new MalformedURIException( |
| "Opaque part 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!"); |
| } |
| index += 2; |
| } else if (!isURICharacter(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!"); |
| } |
| index += 2; |
| } else if (!isURICharacter(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() { |
| StringBuffer schemespec = new StringBuffer(); |
| |
| if (m_host != null || m_regAuthority != null) { |
| schemespec.append("//"); |
| |
| // Server based authority. |
| if (m_host != null) { |
| |
| if (m_userinfo != null) { |
| schemespec.append(m_userinfo); |
| schemespec.append('@'); |
| } |
| |
| schemespec.append(m_host); |
| |
| if (m_port != -1) { |
| schemespec.append(':'); |
| schemespec.append(m_port); |
| } |
| } |
| // Registry based authority. |
| else { |
| schemespec.append(m_regAuthority); |
| } |
| } |
| |
| 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 registry based authority for this URI. |
| * |
| * @return the registry based authority (null if not specified). |
| */ |
| public String getRegBasedAuthority() { |
| return m_regAuthority; |
| } |
| |
| /** |
| * 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) { |
| StringBuffer pathString = new StringBuffer(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( |
| "Cannot set scheme from null string!"); |
| } |
| if (!isConformantSchemeName(p_scheme)) { |
| throw new MalformedURIException("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; |
| return; |
| } 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 (!isUserinfoCharacter(testChar)) { |
| throw new MalformedURIException( |
| "Userinfo contains invalid character:" + testChar); |
| } |
| index++; |
| } |
| } |
| m_userinfo = p_userinfo; |
| } |
| |
| /** |
| * <p>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.</p> |
| * <p/> |
| * <p>Note: This method overwrites registry based authority if it previously existed in this |
| * URI.</p> |
| * |
| * @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.length() == 0) { |
| if (p_host != null) { |
| m_regAuthority = null; |
| } |
| m_host = p_host; |
| m_userinfo = null; |
| m_port = -1; |
| return; |
| } else if (!isWellFormedAddress(p_host)) { |
| throw new MalformedURIException("Host is not a well formed address!"); |
| } |
| m_host = p_host; |
| m_regAuthority = null; |
| } |
| |
| /** |
| * 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( |
| "Port cannot be set when host is null!"); |
| } |
| } else if (p_port != -1) { |
| throw new MalformedURIException("Invalid port number!"); |
| } |
| m_port = p_port; |
| } |
| |
| /** |
| * <p>Sets the registry based authority for this URI.</p> |
| * <p/> |
| * <p>Note: This method overwrites server based authority if it previously existed in this |
| * URI.</p> |
| * |
| * @param authority the registry based authority for this URI |
| * @throws MalformedURIException it authority is not a well formed registry based authority |
| */ |
| public void setRegBasedAuthority(String authority) |
| throws MalformedURIException { |
| |
| if (authority == null) { |
| m_regAuthority = null; |
| return; |
| } |
| // reg_name = 1*( unreserved | escaped | "$" | "," | |
| // ";" | ":" | "@" | "&" | "=" | "+" ) |
| else if (authority.length() < 1 || |
| !isValidRegistryBasedAuthority(authority) || |
| authority.indexOf('/') != -1) { |
| throw new MalformedURIException("Registry based authority is not well formed."); |
| } |
| m_regAuthority = authority; |
| m_host = null; |
| m_userinfo = null; |
| m_port = -1; |
| } |
| |
| /** |
| * 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, 0); |
| } |
| } |
| |
| /** |
| * 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( |
| "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 (this.m_path == 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( |
| "Fragment can only be set for a generic URI!"); |
| } else if (getPath() == null) { |
| throw new MalformedURIException( |
| "Fragment cannot be set when path is null!"); |
| } else if (!isURIString(p_fragment)) { |
| throw new MalformedURIException( |
| "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 |
| */ |
| 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; |
| } |
| |
| /** |
| * Returns a hash-code value for this URI. The hash code is based upon all of the URI's |
| * components, and satisfies the general contract of the {@link Object#hashCode() |
| * Object.hashCode} method. </p> |
| * |
| * @return A hash-code value for this URI |
| */ |
| public int hashCode() { |
| return toString().hashCode(); |
| } |
| |
| /** |
| * Get the URI as a string specification. See RFC 2396 Section 5.2. |
| * |
| * @return the URI string specification |
| */ |
| public String toString() { |
| StringBuffer uriSpecString = new StringBuffer(); |
| |
| 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 '.'. |
| * |
| * @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; |
| int schemeLength = p_scheme.length(); |
| for (int i = 1; i < schemeLength; ++i) { |
| testChar = p_scheme.charAt(i); |
| if (!isSchemeCharacter(testChar)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Determine whether a string is syntactically capable of representing a valid IPv4 address, IPv6 |
| * reference or the domain name of a network host. A valid IPv4 address consists of four decimal |
| * digit groups separated by a '.'. Each group must consist of one to three digits. See RFC 2732 |
| * Section 3, and RFC 2373 Section 2.2, for the definition of IPv6 references. 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. |
| * |
| * @return true if the string is a syntactically valid IPv4 address, IPv6 reference or hostname |
| */ |
| public static boolean isWellFormedAddress(String address) { |
| if (address == null) { |
| return false; |
| } |
| |
| int addrLength = address.length(); |
| if (addrLength == 0) { |
| return false; |
| } |
| |
| // Check if the host is a valid IPv6reference. |
| if (address.startsWith("[")) { |
| return isWellFormedIPv6Reference(address); |
| } |
| |
| // Cannot start with a '.', '-', or end with a '-'. |
| if (address.startsWith(".") || |
| address.startsWith("-") || |
| address.endsWith("-")) { |
| 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(address.charAt(index + 1))) { |
| return isWellFormedIPv4Address(address); |
| } else { |
| // hostname = *( domainlabel "." ) toplabel [ "." ] |
| // domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum |
| // toplabel = alpha | alpha *( alphanum | "-" ) alphanum |
| |
| // RFC 2396 states that hostnames take the form described in |
| // RFC 1034 (Section 3) and RFC 1123 (Section 2.1). According |
| // to RFC 1034, hostnames are limited to 255 characters. |
| if (addrLength > 255) { |
| return false; |
| } |
| |
| // domain labels can contain alphanumerics and '-" |
| // but must start and end with an alphanumeric |
| char testChar; |
| int labelCharCount = 0; |
| |
| 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; |
| } |
| labelCharCount = 0; |
| } else if (!isAlphanum(testChar) && testChar != '-') { |
| return false; |
| } |
| // RFC 1034: Labels must be 63 characters or less. |
| else if (++labelCharCount > 63) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * <p>Determines whether a string is an IPv4 address as defined by RFC 2373, and under the further |
| * constraint that it must be a 32-bit address. Though not expressed in the grammar, in order to |
| * satisfy the 32-bit address constraint, each segment of the address cannot be greater than 255 |
| * (8 bits of information).</p> |
| * <p/> |
| * <p><code>IPv4address = 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT</code></p> |
| * |
| * @return true if the string is a syntactically valid IPv4 address |
| */ |
| public static boolean isWellFormedIPv4Address(String address) { |
| |
| int addrLength = address.length(); |
| char testChar; |
| int numDots = 0; |
| int numDigits = 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 |
| // |
| // RFC 2732 amended RFC 2396 by replacing the definition |
| // of IPv4address with the one defined by RFC 2373. - mrglavas |
| // |
| // IPv4address = 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT |
| // |
| // One to three digits must be in each segment. |
| for (int i = 0; i < addrLength; i++) { |
| testChar = address.charAt(i); |
| if (testChar == '.') { |
| if ((i > 0 && !isDigit(address.charAt(i - 1))) || |
| (i + 1 < addrLength && !isDigit(address.charAt(i + 1)))) { |
| return false; |
| } |
| numDigits = 0; |
| if (++numDots > 3) { |
| return false; |
| } |
| } else if (!isDigit(testChar)) { |
| return false; |
| } |
| // Check that that there are no more than three digits |
| // in this segment. |
| else if (++numDigits > 3) { |
| return false; |
| } |
| // Check that this segment is not greater than 255. |
| else if (numDigits == 3) { |
| char first = address.charAt(i - 2); |
| char second = address.charAt(i - 1); |
| if (!(first < '2' || |
| (first == '2' && |
| (second < '5' || |
| (second == '5' && testChar <= '5'))))) { |
| return false; |
| } |
| } |
| } |
| return (numDots == 3); |
| } |
| |
| /** |
| * <p>Determines whether a string is an IPv6 reference as defined by RFC 2732, where IPv6address |
| * is defined in RFC 2373. The IPv6 address is parsed according to Section 2.2 of RFC 2373, with |
| * the additional constraint that the address be composed of 128 bits of information.</p> |
| * <p/> |
| * <p><code>IPv6reference = "[" IPv6address "]"</code></p> |
| * <p/> |
| * <p>Note: The BNF expressed in RFC 2373 Appendix B does not accurately describe section 2.2, and |
| * was in fact removed from RFC 3513, the successor of RFC 2373.</p> |
| * |
| * @return true if the string is a syntactically valid IPv6 reference |
| */ |
| public static boolean isWellFormedIPv6Reference(String address) { |
| |
| int addrLength = address.length(); |
| int index = 1; |
| int end = addrLength - 1; |
| |
| // Check if string is a potential match for IPv6reference. |
| if (!(addrLength > 2 && address.charAt(0) == '[' |
| && address.charAt(end) == ']')) { |
| return false; |
| } |
| |
| // Counter for the number of 16-bit sections read in the address. |
| int [] counter = new int[1]; |
| |
| // Scan hex sequence before possible '::' or IPv4 address. |
| index = scanHexSequence(address, index, end, counter); |
| if (index == -1) { |
| return false; |
| } |
| // Address must contain 128-bits of information. |
| else if (index == end) { |
| return (counter[0] == 8); |
| } |
| |
| if (index + 1 < end && address.charAt(index) == ':') { |
| if (address.charAt(index + 1) == ':') { |
| // '::' represents at least one 16-bit group of zeros. |
| if (++counter[0] > 8) { |
| return false; |
| } |
| index += 2; |
| // Trailing zeros will fill out the rest of the address. |
| if (index == end) { |
| return true; |
| } |
| } |
| // If the second character wasn't ':', in order to be valid, |
| // the remainder of the string must match IPv4Address, |
| // and we must have read exactly 6 16-bit groups. |
| else { |
| return (counter[0] == 6) && |
| isWellFormedIPv4Address(address.substring(index + 1, end)); |
| } |
| } else { |
| return false; |
| } |
| |
| // 3. Scan hex sequence after '::'. |
| int prevCount = counter[0]; |
| index = scanHexSequence(address, index, end, counter); |
| |
| // We've either reached the end of the string, the address ends in |
| // an IPv4 address, or it is invalid. scanHexSequence has already |
| // made sure that we have the right number of bits. |
| return (index == end) || |
| (index != -1 && isWellFormedIPv4Address( |
| address.substring((counter[0] > prevCount) ? index + 1 : index, end))); |
| } |
| |
| /** |
| * Helper method for isWellFormedIPv6Reference which scans the hex sequences of an IPv6 address. |
| * It returns the index of the next character to scan in the address, or -1 if the string cannot |
| * match a valid IPv6 address. |
| * |
| * @param address the string to be scanned |
| * @param index the beginning index (inclusive) |
| * @param end the ending index (exclusive) |
| * @param counter a counter for the number of 16-bit sections read in the address |
| * @return the index of the next character to scan, or -1 if the string cannot match a valid IPv6 |
| * address |
| */ |
| private static int scanHexSequence(String address, int index, int end, int [] counter) { |
| |
| char testChar; |
| int numDigits = 0; |
| int start = index; |
| |
| // Trying to match the following productions: |
| // hexseq = hex4 *( ":" hex4) |
| // hex4 = 1*4HEXDIG |
| for (; index < end; ++index) { |
| testChar = address.charAt(index); |
| if (testChar == ':') { |
| // IPv6 addresses are 128-bit, so there can be at most eight sections. |
| if (numDigits > 0 && ++counter[0] > 8) { |
| return -1; |
| } |
| // This could be '::'. |
| if (numDigits == 0 || ((index + 1 < end) && address.charAt(index + 1) == ':')) { |
| return index; |
| } |
| numDigits = 0; |
| } |
| // This might be invalid or an IPv4address. If it's potentially an IPv4address, |
| // backup to just after the last valid character that matches hexseq. |
| else if (!isHex(testChar)) { |
| if (testChar == '.' && numDigits < 4 && numDigits > 0 && counter[0] <= 6) { |
| int back = index - numDigits - 1; |
| return (back >= start) ? back : (back + 1); |
| } |
| return -1; |
| } |
| // There can be at most 4 hex digits per group. |
| else if (++numDigits > 4) { |
| return -1; |
| } |
| } |
| return (numDigits > 0 && ++counter[0] <= 8) ? end : -1; |
| } |
| |
| |
| /** |
| * Determine whether a char is a digit. |
| * |
| * @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. |
| * |
| * @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 (p_char <= 'f' && (fgLookupTable[p_char] & ASCII_HEX_CHARACTERS) != 0); |
| } |
| |
| /** |
| * Determine whether a char is an alphabetic character: a-z or A-Z |
| * |
| * @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 |
| * |
| * @return true if the char is alphanumeric, false otherwise |
| */ |
| private static boolean isAlphanum(char p_char) { |
| return (p_char <= 'z' && (fgLookupTable[p_char] & MASK_ALPHA_NUMERIC) != 0); |
| } |
| |
| /** |
| * Determine whether a char is a URI character (reserved or unreserved, not including '%' for |
| * escaped octets). |
| * |
| * @return true if the char is a URI character, false otherwise |
| */ |
| private static boolean isURICharacter(char p_char) { |
| return (p_char <= '~' && (fgLookupTable[p_char] & MASK_URI_CHARACTER) != 0); |
| } |
| |
| /** |
| * Determine whether a char is a scheme character. |
| * |
| * @return true if the char is a scheme character, false otherwise |
| */ |
| private static boolean isSchemeCharacter(char p_char) { |
| return (p_char <= 'z' && (fgLookupTable[p_char] & MASK_SCHEME_CHARACTER) != 0); |
| } |
| |
| /** |
| * Determine whether a char is a userinfo character. |
| * |
| * @return true if the char is a userinfo character, false otherwise |
| */ |
| private static boolean isUserinfoCharacter(char p_char) { |
| return (p_char <= 'z' && (fgLookupTable[p_char] & MASK_USERINFO_CHARACTER) != 0); |
| } |
| |
| /** |
| * Determine whether a char is a path character. |
| * |
| * @return true if the char is a path character, false otherwise |
| */ |
| private static boolean isPathCharacter(char p_char) { |
| return (p_char <= '~' && (fgLookupTable[p_char] & MASK_PATH_CHARACTER) != 0); |
| } |
| |
| |
| /** |
| * 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. |
| * |
| * @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 (!isURICharacter(testChar)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |
| |
