1/*
2 * The MIT License (MIT)
3 *
4 * Copyright (c) 2014-2017 Christian Schudt
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25package rocks.xmpp.addr;
26
27/**
28 * Represents a malformed JID in order to handle the <code>jid-malformed</code> error.
29 * <p>
30 * This class is not intended to be publicly instantiable, but is used for malformed JIDs during parsing automatically.
31 *
32 * @author Christian Schudt
33 * @see <a href="https://xmpp.org/rfcs/rfc6120.html#stanzas-error-conditions-jid-malformed">RFC 6120, 8.3.3.8. jid-malformed</a>
34 */
35public final class MalformedJid extends AbstractJid {
36
37 private static final long serialVersionUID = -2896737611021417985L;
38
39 private final String localPart;
40
41 private final String domainPart;
42
43 private final String resourcePart;
44
45 private final Throwable cause;
46
47 static MalformedJid of(final String jid, final Throwable cause) {
48 // Do some basic parsing without any further checks or validation.
49 final StringBuilder sb = new StringBuilder(jid);
50 // 1. Remove any portion from the first '/' character to the end of the
51 // string (if there is a '/' character present).
52 final int indexOfResourceDelimiter = jid.indexOf('/');
53 final String resourcePart;
54 if (indexOfResourceDelimiter > -1) {
55 resourcePart = sb.substring(indexOfResourceDelimiter + 1);
56 sb.delete(indexOfResourceDelimiter, sb.length());
57 } else {
58 resourcePart = null;
59 }
60 // 2. Remove any portion from the beginning of the string to the first
61 // '@' character (if there is an '@' character present).
62 final int indexOfAt = jid.indexOf('@');
63 final String localPart;
64 if (indexOfAt > -1) {
65 localPart = sb.substring(0, indexOfAt);
66 sb.delete(0, indexOfAt + 1);
67 } else {
68 localPart = null;
69 }
70 return new MalformedJid(localPart, sb.toString(), resourcePart, cause);
71 }
72
73 private MalformedJid(final String localPart, final String domainPart, final String resourcePart, final Throwable cause) {
74 this.localPart = localPart;
75 this.domainPart = domainPart;
76 this.resourcePart = resourcePart;
77 this.cause = cause;
78 }
79
80 @Override
81 public final Jid asBareJid() {
82 return new MalformedJid(localPart, domainPart, null, cause);
83 }
84
85 @Override
86 public Jid withLocal(CharSequence local) {
87 return new MalformedJid(local.toString(), domainPart, resourcePart, cause);
88 }
89
90 @Override
91 public Jid withResource(CharSequence resource) {
92 return new MalformedJid(localPart, domainPart, resource.toString(), cause);
93 }
94
95 @Override
96 public Jid atSubdomain(CharSequence subdomain) {
97 if (subdomain == null) {
98 throw new NullPointerException();
99 }
100 return new MalformedJid(localPart, subdomain + "." + domainPart, resourcePart, cause);
101 }
102
103 @Override
104 public final String getLocal() {
105 return localPart;
106 }
107
108 @Override
109 public final String getEscapedLocal() {
110 return localPart;
111 }
112
113 @Override
114 public final String getDomain() {
115 return domainPart;
116 }
117
118 @Override
119 public final String getResource() {
120 return resourcePart;
121 }
122
123 /**
124 * Gets the cause why the JID is malformed.
125 *
126 * @return The cause.
127 */
128 public final Throwable getCause() {
129 return cause;
130 }
131}