001/* 002 * oauth2-oidc-sdk 003 * 004 * Copyright 2012-2016, Connect2id Ltd and contributors. 005 * 006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use 007 * this file except in compliance with the License. You may obtain a copy of the 008 * License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software distributed 013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the 015 * specific language governing permissions and limitations under the License. 016 */ 017 018package com.nimbusds.oauth2.sdk.id; 019 020 021import java.net.URI; 022import java.net.URISyntaxException; 023 024import net.jcip.annotations.Immutable; 025 026 027/** 028 * Issuer identifier. 029 * 030 * <p>Valid issuer identifiers are URIs with "https" schema and no query or 031 * fragment component. 032 */ 033@Immutable 034public final class Issuer extends Identifier { 035 036 037 /** 038 * Checks if the specified string represents a valid issuer identifier. 039 * This method is {@code null}-safe. 040 * 041 * @param value The issuer string. 042 * 043 * @return {@code true} if the string represents a valid issuer 044 * identifier, else {@code false}. 045 */ 046 public static boolean isValid(final String value) { 047 048 if (value == null) 049 return false; 050 051 try { 052 return isValid(new URI(value)); 053 054 } catch (URISyntaxException e) { 055 056 return false; 057 } 058 } 059 060 061 /** 062 * Checks if the specified issuer is a valid identifier. This method is 063 * {@code null}-safe. 064 * 065 * @param value The issuer. 066 * 067 * @return {@code true} if the value is a valid identifier, else 068 * {@code false}. 069 */ 070 public static boolean isValid(final Issuer value) { 071 072 if (value == null) 073 return false; 074 075 try { 076 return isValid(new URI(value.getValue())); 077 078 } catch (URISyntaxException e) { 079 080 return false; 081 } 082 } 083 084 085 /** 086 * Checks if the specified URI represents a valid issuer identifier. 087 * This method is {@code null}-safe. 088 * 089 * @param value The URI. 090 * 091 * @return {@code true} if the values represents a valid issuer 092 * identifier, else {@code false}. 093 */ 094 public static boolean isValid(final URI value) { 095 096 if (value == null) 097 return false; 098 099 if (value.getScheme() == null || ! value.getScheme().equalsIgnoreCase("https")) 100 return false; 101 102 if (value.getRawQuery() != null) 103 return false; 104 105 return value.getRawFragment() == null; 106 107 } 108 109 110 /** 111 * Creates a new issuer identifier with the specified value. 112 * 113 * @param value The issuer identifier value. Must not be {@code null} 114 * or empty string. 115 */ 116 public Issuer(final String value) { 117 118 super(value); 119 } 120 121 122 /** 123 * Creates a new issuer identifier with the specified URI value. 124 * 125 * @param value The URI value. Must not be {@code null}. 126 */ 127 public Issuer(final URI value) { 128 129 super(value.toString()); 130 } 131 132 133 /** 134 * Creates a new issuer identifier with the specified value. 135 * 136 * @param value The value. Must not be {@code null}. 137 */ 138 public Issuer(final Identifier value) { 139 140 super(value.getValue()); 141 } 142 143 144 /** 145 * Checks if this issuer is a valid identifier. This method is 146 * {@code null}-safe. 147 * 148 * @return {@code true} if the value is a valid identifier, else 149 * {@code false}. 150 */ 151 public boolean isValid() { 152 153 return Issuer.isValid(this); 154 } 155 156 157 @Override 158 public boolean equals(final Object object) { 159 160 return object instanceof Issuer && this.toString().equals(object.toString()); 161 } 162}