1/*
2 * Copyright (c) 2018, Daniel Gultsch All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation and/or
12 * other materials provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors
15 * may be used to endorse or promote products derived from this software without
16 * specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
25 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30package eu.siacs.conversations.xmpp;
31
32import android.support.annotation.NonNull;
33
34import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
35import rocks.xmpp.addr.Jid;
36
37public class InvalidJid implements Jid {
38
39 private final String value;
40
41 private InvalidJid(String jid) {
42 this.value = jid;
43 }
44 public static Jid of(String jid, boolean fallback) {
45 final int pos = jid.indexOf('/');
46 if (fallback && pos >= 0 && jid.length() >= pos + 1) {
47 if (jid.substring(pos+1).trim().isEmpty()) {
48 return Jid.ofEscaped(jid.substring(0,pos));
49 }
50 }
51 return new InvalidJid(jid);
52 }
53
54 @Override
55 @NonNull
56 public String toString() {
57 return value;
58 }
59
60 @Override
61 public boolean isFullJid() {
62 throw new AssertionError("Not implemented");
63 }
64
65 @Override
66 public boolean isBareJid() {
67 throw new AssertionError("Not implemented");
68 }
69
70 @Override
71 public Jid asBareJid() {
72 throw new AssertionError("Not implemented");
73 }
74
75 @Override
76 public Jid withLocal(CharSequence charSequence) {
77 throw new AssertionError("Not implemented");
78 }
79
80 @Override
81 public Jid withResource(CharSequence charSequence) {
82 throw new AssertionError("Not implemented");
83 }
84
85 @Override
86 public Jid atSubdomain(CharSequence charSequence) {
87 throw new AssertionError("Not implemented");
88 }
89
90 @Override
91 public String getLocal() {
92 throw new AssertionError("Not implemented");
93 }
94
95 @Override
96 public String getEscapedLocal() {
97 throw new AssertionError("Not implemented");
98 }
99
100 @Override
101 public String getDomain() {
102 throw new AssertionError("Not implemented");
103 }
104
105 @Override
106 public String getResource() {
107 throw new AssertionError("Not implemented");
108 }
109
110 @Override
111 public String toEscapedString() {
112 throw new AssertionError("Not implemented");
113 }
114
115 @Override
116 public int length() {
117 return value.length();
118 }
119
120 @Override
121 public char charAt(int index) {
122 return value.charAt(index);
123 }
124
125 @Override
126 public CharSequence subSequence(int start, int end) {
127 return value.subSequence(start, end);
128 }
129
130 @Override
131 public int compareTo(@NonNull Jid o) {
132 throw new AssertionError("Not implemented");
133 }
134
135 public static Jid getNullForInvalid(Jid jid) {
136 if (jid != null && jid instanceof InvalidJid) {
137 return null;
138 } else {
139 return jid;
140 }
141 }
142
143 public static boolean isValid(Jid jid) {
144 return !(jid != null && jid instanceof InvalidJid);
145 }
146
147 public static boolean hasValidFrom(AbstractStanza stanza) {
148 final String from = stanza.getAttribute("from");
149 if (from == null) {
150 return false;
151 }
152 try {
153 Jid.ofEscaped(from);
154 return true;
155 } catch (IllegalArgumentException e) {
156 return false;
157 }
158 }
159}