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1 package de.mpiwg.itgroup.annotationManager.restlet;
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2
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3 import java.net.URI;
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4 import java.net.URISyntaxException;
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5 import java.util.Hashtable;
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6
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7 import javax.naming.NamingEnumeration;
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8 import javax.naming.NamingException;
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9 import javax.naming.directory.Attribute;
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10 import javax.naming.directory.DirContext;
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11 import javax.naming.directory.InitialDirContext;
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12 import javax.naming.directory.SearchControls;
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13 import javax.naming.directory.SearchResult;
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14 import javax.security.auth.Subject;
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15 import javax.security.auth.callback.Callback;
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16 import javax.security.auth.callback.CallbackHandler;
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17 import javax.security.auth.callback.NameCallback;
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18 import javax.security.auth.callback.PasswordCallback;
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19 import javax.security.auth.login.AppConfigurationEntry;
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20 import javax.security.auth.login.Configuration;
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21 import javax.security.auth.login.LoginContext;
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22 import javax.security.auth.login.LoginException;
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23
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24 import org.apache.log4j.BasicConfigurator;
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25 import org.apache.log4j.Level;
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26 import org.apache.log4j.Logger;
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27 import org.restlet.Application;
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28 import org.restlet.Context;
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29 import org.restlet.Request;
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30 import org.restlet.Response;
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31 import org.restlet.Restlet;
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32
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33 import org.restlet.data.ChallengeScheme;
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34 import org.restlet.data.ClientInfo;
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35 import org.restlet.engine.component.ChildContext;
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36 import org.restlet.ext.jaas.JaasVerifier;
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3
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37 import org.restlet.routing.Redirector;
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38 import org.restlet.routing.Router;
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39 import org.restlet.routing.Template;
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40 import org.restlet.routing.TemplateRoute;
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41 import org.restlet.security.ChallengeAuthenticator;
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42 import org.restlet.security.MapVerifier;
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43 import org.restlet.security.User;
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44 import org.restlet.security.Verifier;
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45
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46 import com.sun.org.apache.xalan.internal.xsltc.runtime.Attributes;
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47 import com.sun.security.auth.login.ConfigFile;
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48
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49
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50
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51
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52 public class RestServer extends Application {
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53
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54
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55 private ChallengeAuthenticator authenticator;
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56 private CallbackHandler callbackHandler;
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57
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58 /** Erzeuge einen Authenticator
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59 * @return
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60 */
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61 private ChallengeAuthenticator createAuthenticator() {
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62 Context context = getContext();
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63 boolean optional = true;
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64 ChallengeScheme challengeScheme = ChallengeScheme.HTTP_BASIC;
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65 String realm = "Annotation Service";
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66
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67 JaasVerifier verifier = new JaasVerifier("BasicJaasAuthenticationApplication");
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68
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69
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70 Configuration jaasConfig;
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71 jaasConfig = createConfiguration();
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72
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73
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74 verifier.setConfiguration(jaasConfig);
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75 verifier.setUserPrincipalClassName("com.sun.security.auth.UserPrincipal");
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76
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77 ChallengeAuthenticator auth = new ChallengeAuthenticator(context, optional, challengeScheme, realm, verifier) {
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78 @Override
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79 protected boolean authenticate(Request request, Response response) {
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80 if (request.getChallengeResponse() == null) {
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81 return false;
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82 } else {
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83 return super.authenticate(request, response);
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84 }
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85 }
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86 };
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87
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88 return auth;
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89 }
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90
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91 /**
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92 * Konfiguration fŸr den Authentificator in Jaas. Pfad zum JAAS-Konfigurationsfile liegt im Context-Parameter
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93 * "de.mpiwg.itgroup.annotationManager.jaas.configFilePath".
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94 * @return
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95 */
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96 protected Configuration createConfiguration() {
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97 Configuration jaasConfig;
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98 URI confUri;
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99
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100 Context context = getContext();
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101 String configFilePath = context.getParameters().getFirstValue("de.mpiwg.itgroup.annotationManager.jaas.configFilePath");
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102
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103
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104 try {
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105 confUri = new URI(configFilePath);
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106 } catch (URISyntaxException e) {
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107 e.printStackTrace();
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108 confUri = null;
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109 }
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110
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111 jaasConfig= new ConfigFile(confUri);
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112 return jaasConfig;
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113 }
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114
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115 public RestServer(Context parentContext){
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116 super(parentContext);
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117
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118 Logger rl = Logger.getRootLogger();
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119 BasicConfigurator.configure();
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120 rl.setLevel(Level.DEBUG);
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121
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122
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123 }
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124
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125 public synchronized Restlet createInboundRoot(){
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126 this.authenticator = createAuthenticator();
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127
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128
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3
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129 //String target = "{rh}/{rf}/XX";
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130 //Redirector redirector = new Redirector(getContext().createChildContext(), target,
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131 // Redirector.MODE_CLIENT_SEE_OTHER);
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132
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133 Router router = new Router(getContext());
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134
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3
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135
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136 router.attach("/annotations",AddAndSearchAnnotations.class);
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137 router.attach("/search",AddAndSearchAnnotations.class); // annotator api askes for different uris for search and adding
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138 router.attach("/dummy",Dummy.class);
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139
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140 //router.attach("",redirector);
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141 router.attach("/",AnnotatorInfo.class);
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142 authenticator.setNext(router);
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143 return authenticator;
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144
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145
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146
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147 }
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148
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2
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149 /**
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150 * Authentifiziere den Benutzer aus dem Request (BasicAuthenfication)
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151 * @param request
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152 * @param response
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153 * @return
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154 */
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155 public boolean authenticate(Request request, Response response) {
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156 if (!request.getClientInfo().isAuthenticated()) {
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157 authenticator.challenge(response, false);
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158 return false;
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159 }
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160
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161 if(request.getClientInfo().getUser()==null) //FIXME sometimes ist authenticated true, but no user
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162 {
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163 authenticator.challenge(response, false);
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164 return false;
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165 }
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2
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166
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167
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168 return true;
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169 }
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170
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2
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171 /**
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172 * Authentifiziere den Benutzer
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173 *
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174 * @param username
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175 * @param password
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176 * @param request
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177 * @return
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178 */
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0
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179 public boolean authenticate(String username, String password,Request request) {
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180 LoginContext lc;
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181
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182 try {
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183 Configuration conf = createConfiguration();
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184
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185 lc = new LoginContext("BasicJaasAuthenticationApplication", null, new MyCallBackHandler(username,password),conf);
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186 lc.login();
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187 } catch (LoginException e) {
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188 // TODO Auto-generated catch block
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189 e.printStackTrace();
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190 return false;
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191 }
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192
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193 Subject subject = lc.getSubject();
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194 ClientInfo clientInfo = new ClientInfo();
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195 User user = new User(username);
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196 clientInfo.setAuthenticated(true);
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197 clientInfo.setUser(user);
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198
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199 request.setClientInfo(clientInfo);
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200 return true;
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201 }
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202
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2
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203 /**
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204 * Hole den vollen Benutzernamen aus dem LDAP
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205 * @param creator
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206 * @return
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207 */
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208 public String getUserNameFromLdap(String creator) {
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209 String retString=creator; // falls nichts gefunden wird einfach den creator zurueckgeben
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210 Hashtable<String,String> env = new Hashtable<String,String>();
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211 String sp = "com.sun.jndi.ldap.LdapCtxFactory";
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212 env.put(javax.naming.Context.INITIAL_CONTEXT_FACTORY, sp);
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213
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214 String ldapUrl = "ldap://ldapreplik.mpiwg-berlin.mpg.de/dc=mpiwg-berlin,dc=mpg,dc=de";//TODO should go into config file
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215 env.put(javax.naming.Context.PROVIDER_URL, ldapUrl);
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216
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217 DirContext dctx;
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218 try {
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219 dctx = new InitialDirContext(env);
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220 } catch (NamingException e1) {
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221 // TODO Auto-generated catch block
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222 e1.printStackTrace();
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223 return retString;
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224 }
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225
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226 String base = "ou=People";
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227
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228 SearchControls sc = new SearchControls();
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229 String[] attributeFilter = { "cn", "mail" };
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230 sc.setReturningAttributes(attributeFilter);
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231 sc.setSearchScope(SearchControls.SUBTREE_SCOPE);
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232
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233 String filter = "(uid="+creator+")";
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234
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235 try {
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236 NamingEnumeration<SearchResult> results = dctx.search(base, filter, sc);
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237 while (results.hasMore()) {
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238 SearchResult sr = (SearchResult) results.next();
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239 javax.naming.directory.Attributes attrs = sr.getAttributes();
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240
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241 Attribute attr = attrs.get("cn");
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242 retString=(String) attr.get();
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243 }
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244 } catch (NamingException e) {
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245 // TODO Auto-generated catch block
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246 e.printStackTrace();
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247 }
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248
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249 try {
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250 dctx.close();
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251 } catch (NamingException e) {
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252 // TODO Auto-generated catch block
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253 e.printStackTrace();
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254 }
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255 return retString;
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256 }
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257
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258 }
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