1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.io.auth;
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3 |
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4 | import java.awt.Component;
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5 | import java.net.Authenticator.RequestorType;
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6 | import java.net.PasswordAuthentication;
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7 | import java.util.Objects;
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8 |
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9 | import org.openstreetmap.josm.data.UserIdentityManager;
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10 | import org.openstreetmap.josm.data.oauth.IOAuthToken;
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11 | import org.openstreetmap.josm.data.oauth.OAuthToken;
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12 | import org.openstreetmap.josm.io.OsmApi;
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13 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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14 | import org.openstreetmap.josm.tools.Logging;
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15 | import org.openstreetmap.josm.tools.Utils;
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16 |
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17 | /**
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18 | * CredentialManager is a factory for the single credential agent used.
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19 | *
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20 | * Currently, it defaults to replying an instance of {@link JosmPreferencesCredentialAgent}.
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21 | * @since 2641
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22 | */
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23 | public class CredentialsManager implements CredentialsAgent {
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24 |
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25 | private static volatile CredentialsManager instance;
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26 |
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27 | /**
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28 | * Replies the single credential agent used in JOSM
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29 | *
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30 | * @return the single credential agent used in JOSM
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31 | */
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32 | public static CredentialsManager getInstance() {
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33 | if (instance == null) {
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34 | CredentialsAgent delegate;
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35 | if (agentFactory == null) {
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36 | delegate = new JosmPreferencesCredentialAgent();
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37 | } else {
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38 | delegate = agentFactory.getCredentialsAgent();
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39 | }
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40 | instance = new CredentialsManager(delegate);
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41 | }
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42 | return instance;
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43 | }
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44 |
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45 | private static CredentialsAgentFactory agentFactory;
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46 |
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47 | /**
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48 | * Credentials agent factory.
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49 | */
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50 | @FunctionalInterface
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51 | public interface CredentialsAgentFactory {
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52 | /**
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53 | * Returns the credentials agent instance.
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54 | * @return the credentials agent instance
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55 | */
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56 | CredentialsAgent getCredentialsAgent();
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57 | }
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58 |
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59 | /**
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60 | * Plugins can register a CredentialsAgentFactory, thereby overriding
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61 | * JOSM's default credentials agent.
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62 | * @param agentFactory The Factory that provides the custom CredentialsAgent.
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63 | * Can be null to clear the factory and switch back to default behavior.
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64 | */
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65 | public static void registerCredentialsAgentFactory(CredentialsAgentFactory agentFactory) {
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66 | CredentialsManager.agentFactory = agentFactory;
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67 | CredentialsManager.instance = null;
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68 | }
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69 |
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70 | /* non-static fields and methods */
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71 |
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72 | /**
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73 | * The credentials agent doing the real stuff
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74 | */
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75 | private final CredentialsAgent delegate;
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76 |
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77 | /**
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78 | * Constructs a new {@code CredentialsManager}.
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79 | * @param delegate The credentials agent backing this credential manager. Must not be {@code null}
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80 | */
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81 | public CredentialsManager(CredentialsAgent delegate) {
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82 | CheckParameterUtil.ensureParameterNotNull(delegate, "delegate");
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83 | this.delegate = delegate;
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84 | }
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85 |
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86 | /**
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87 | * Returns type of credentials agent backing this credentials manager.
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88 | * @return The type of credentials agent
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89 | */
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90 | public final Class<? extends CredentialsAgent> getCredentialsAgentClass() {
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91 | return delegate.getClass();
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92 | }
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93 |
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94 | /**
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95 | * Returns the username for OSM API
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96 | * @return the username for OSM API
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97 | */
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98 | public String getUsername() {
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99 | return getUsername(OsmApi.getOsmApi().getHost());
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100 | }
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101 |
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102 | /**
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103 | * Returns the username for a given host
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104 | * @param host The host for which username is wanted
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105 | * @return The username for {@code host}
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106 | */
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107 | public String getUsername(String host) {
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108 | String username = null;
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109 | try {
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110 | PasswordAuthentication auth = lookup(RequestorType.SERVER, host);
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111 | if (auth != null) {
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112 | username = auth.getUserName();
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113 | }
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114 | } catch (CredentialsAgentException ex) {
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115 | Logging.debug(ex);
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116 | return null;
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117 | }
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118 | if (username == null) return null;
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119 | username = username.trim();
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120 | return username.isEmpty() ? null : username;
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121 | }
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122 |
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123 | @Override
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124 | public PasswordAuthentication lookup(RequestorType requestorType, String host) throws CredentialsAgentException {
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125 | return delegate.lookup(requestorType, host);
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126 | }
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127 |
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128 | @Override
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129 | public void store(RequestorType requestorType, String host, PasswordAuthentication credentials) throws CredentialsAgentException {
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130 | if (requestorType == RequestorType.SERVER && Objects.equals(OsmApi.getOsmApi().getHost(), host)) {
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131 | String username = credentials.getUserName();
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132 | if (!Utils.isBlank(username)) {
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133 | UserIdentityManager.getInstance().setPartiallyIdentified(username);
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134 | }
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135 | }
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136 | // see #11914: clear cache before we store new value
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137 | purgeCredentialsCache(requestorType);
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138 | delegate.store(requestorType, host, credentials);
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139 | }
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140 |
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141 | @Override
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142 | public CredentialsAgentResponse getCredentials(RequestorType requestorType, String host, boolean noSuccessWithLastResponse)
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143 | throws CredentialsAgentException {
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144 | CredentialsAgentResponse credentials = delegate.getCredentials(requestorType, host, noSuccessWithLastResponse);
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145 | if (requestorType == RequestorType.SERVER) {
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146 | // see #11914 : Keep UserIdentityManager up to date
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147 | String userName = credentials.getUsername();
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148 | userName = userName == null ? "" : userName.trim();
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149 | if (!Objects.equals(UserIdentityManager.getInstance().getUserName(), userName)) {
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150 | if (userName.isEmpty())
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151 | UserIdentityManager.getInstance().setAnonymous();
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152 | else
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153 | UserIdentityManager.getInstance().setPartiallyIdentified(userName);
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154 | }
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155 | }
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156 | return credentials;
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157 | }
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158 |
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159 | @Override
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160 | public OAuthToken lookupOAuthAccessToken() throws CredentialsAgentException {
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161 | return delegate.lookupOAuthAccessToken();
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162 | }
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163 |
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164 | @Override
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165 | public IOAuthToken lookupOAuthAccessToken(String host) throws CredentialsAgentException {
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166 | return delegate.lookupOAuthAccessToken(host);
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167 | }
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168 |
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169 | @Override
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170 | public void storeOAuthAccessToken(OAuthToken accessToken) throws CredentialsAgentException {
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171 | delegate.storeOAuthAccessToken(accessToken);
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172 | }
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173 |
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174 | @Override
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175 | public void storeOAuthAccessToken(String host, IOAuthToken accessToken) throws CredentialsAgentException {
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176 | delegate.storeOAuthAccessToken(host, accessToken);
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177 | }
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178 |
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179 | @Override
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180 | public Component getPreferencesDecorationPanel() {
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181 | return delegate.getPreferencesDecorationPanel();
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182 | }
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183 |
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184 | @Override
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185 | public void purgeCredentialsCache(RequestorType requestorType) {
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186 | delegate.purgeCredentialsCache(requestorType);
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187 | }
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188 | }
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