mobile/android/thirdparty/ch/boye/httpclientandroidlib/auth/AuthSchemeRegistry.java

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /*
michael@0 2 * ====================================================================
michael@0 3 *
michael@0 4 * Licensed to the Apache Software Foundation (ASF) under one or more
michael@0 5 * contributor license agreements. See the NOTICE file distributed with
michael@0 6 * this work for additional information regarding copyright ownership.
michael@0 7 * The ASF licenses this file to You under the Apache License, Version 2.0
michael@0 8 * (the "License"); you may not use this file except in compliance with
michael@0 9 * the License. You may obtain a copy of the License at
michael@0 10 *
michael@0 11 * http://www.apache.org/licenses/LICENSE-2.0
michael@0 12 *
michael@0 13 * Unless required by applicable law or agreed to in writing, software
michael@0 14 * distributed under the License is distributed on an "AS IS" BASIS,
michael@0 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0 16 * See the License for the specific language governing permissions and
michael@0 17 * limitations under the License.
michael@0 18 * ====================================================================
michael@0 19 *
michael@0 20 * This software consists of voluntary contributions made by many
michael@0 21 * individuals on behalf of the Apache Software Foundation. For more
michael@0 22 * information on the Apache Software Foundation, please see
michael@0 23 * <http://www.apache.org/>.
michael@0 24 *
michael@0 25 */
michael@0 26
michael@0 27 package ch.boye.httpclientandroidlib.auth;
michael@0 28
michael@0 29 import java.util.ArrayList;
michael@0 30 import java.util.List;
michael@0 31 import java.util.Locale;
michael@0 32 import java.util.Map;
michael@0 33 import java.util.concurrent.ConcurrentHashMap;
michael@0 34
michael@0 35 import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
michael@0 36
michael@0 37 import ch.boye.httpclientandroidlib.params.HttpParams;
michael@0 38
michael@0 39 /**
michael@0 40 * Authentication scheme registry that can be used to obtain the corresponding
michael@0 41 * authentication scheme implementation for a given type of authorization challenge.
michael@0 42 *
michael@0 43 * @since 4.0
michael@0 44 */
michael@0 45 @ThreadSafe
michael@0 46 public final class AuthSchemeRegistry {
michael@0 47
michael@0 48 private final ConcurrentHashMap<String,AuthSchemeFactory> registeredSchemes;
michael@0 49
michael@0 50 public AuthSchemeRegistry() {
michael@0 51 super();
michael@0 52 this.registeredSchemes = new ConcurrentHashMap<String,AuthSchemeFactory>();
michael@0 53 }
michael@0 54
michael@0 55 /**
michael@0 56 * Registers a {@link AuthSchemeFactory} with the given identifier. If a factory with the
michael@0 57 * given name already exists it will be overridden. This name is the same one used to
michael@0 58 * retrieve the {@link AuthScheme authentication scheme} from {@link #getAuthScheme}.
michael@0 59 *
michael@0 60 * <p>
michael@0 61 * Please note that custom authentication preferences, if used, need to be updated accordingly
michael@0 62 * for the new {@link AuthScheme authentication scheme} to take effect.
michael@0 63 * </p>
michael@0 64 *
michael@0 65 * @param name the identifier for this scheme
michael@0 66 * @param factory the {@link AuthSchemeFactory} class to register
michael@0 67 *
michael@0 68 * @see #getAuthScheme
michael@0 69 */
michael@0 70 public void register(
michael@0 71 final String name,
michael@0 72 final AuthSchemeFactory factory) {
michael@0 73 if (name == null) {
michael@0 74 throw new IllegalArgumentException("Name may not be null");
michael@0 75 }
michael@0 76 if (factory == null) {
michael@0 77 throw new IllegalArgumentException("Authentication scheme factory may not be null");
michael@0 78 }
michael@0 79 registeredSchemes.put(name.toLowerCase(Locale.ENGLISH), factory);
michael@0 80 }
michael@0 81
michael@0 82 /**
michael@0 83 * Unregisters the class implementing an {@link AuthScheme authentication scheme} with
michael@0 84 * the given name.
michael@0 85 *
michael@0 86 * @param name the identifier of the class to unregister
michael@0 87 */
michael@0 88 public void unregister(final String name) {
michael@0 89 if (name == null) {
michael@0 90 throw new IllegalArgumentException("Name may not be null");
michael@0 91 }
michael@0 92 registeredSchemes.remove(name.toLowerCase(Locale.ENGLISH));
michael@0 93 }
michael@0 94
michael@0 95 /**
michael@0 96 * Gets the {@link AuthScheme authentication scheme} with the given name.
michael@0 97 *
michael@0 98 * @param name the {@link AuthScheme authentication scheme} identifier
michael@0 99 * @param params the {@link HttpParams HTTP parameters} for the authentication
michael@0 100 * scheme.
michael@0 101 *
michael@0 102 * @return {@link AuthScheme authentication scheme}
michael@0 103 *
michael@0 104 * @throws IllegalStateException if a scheme with the given name cannot be found
michael@0 105 */
michael@0 106 public AuthScheme getAuthScheme(final String name, final HttpParams params)
michael@0 107 throws IllegalStateException {
michael@0 108
michael@0 109 if (name == null) {
michael@0 110 throw new IllegalArgumentException("Name may not be null");
michael@0 111 }
michael@0 112 AuthSchemeFactory factory = registeredSchemes.get(name.toLowerCase(Locale.ENGLISH));
michael@0 113 if (factory != null) {
michael@0 114 return factory.newInstance(params);
michael@0 115 } else {
michael@0 116 throw new IllegalStateException("Unsupported authentication scheme: " + name);
michael@0 117 }
michael@0 118 }
michael@0 119
michael@0 120 /**
michael@0 121 * Obtains a list containing the names of all registered {@link AuthScheme authentication
michael@0 122 * schemes}
michael@0 123 *
michael@0 124 * @return list of registered scheme names
michael@0 125 */
michael@0 126 public List<String> getSchemeNames() {
michael@0 127 return new ArrayList<String>(registeredSchemes.keySet());
michael@0 128 }
michael@0 129
michael@0 130 /**
michael@0 131 * Populates the internal collection of registered {@link AuthScheme authentication schemes}
michael@0 132 * with the content of the map passed as a parameter.
michael@0 133 *
michael@0 134 * @param map authentication schemes
michael@0 135 */
michael@0 136 public void setItems(final Map<String, AuthSchemeFactory> map) {
michael@0 137 if (map == null) {
michael@0 138 return;
michael@0 139 }
michael@0 140 registeredSchemes.clear();
michael@0 141 registeredSchemes.putAll(map);
michael@0 142 }
michael@0 143
michael@0 144 }

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