Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/auth/UserClient.java @ 4215:c179cd02177d

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Logout the current user Add code to the logout button to remove the current user from the session and to redirect the browser window to the login page. Part of flys/issue916 (Logout: "Abmelden" Knopf mit Funktion belegen)
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 23 Oct 2012 09:59:16 +0200
parents 2e12518ff5b4
children
rev   line source
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06d999e95615 Add UserClient class to handle REST communication for user related interfaces.
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1 package de.intevation.flys.client.server.auth;
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2
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3 import javax.xml.xpath.XPathConstants;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import org.w3c.dom.Document;
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8 import org.w3c.dom.Element;
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9 import org.w3c.dom.Node;
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10 import org.w3c.dom.NodeList;
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11
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12 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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13 import de.intevation.artifacts.common.utils.XMLUtils;
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14
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15 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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16 import de.intevation.artifacts.httpclient.http.HttpClient;
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17 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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18
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19 /**
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20 * UserClient is a class to allow easier communication
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21 * with the REST based artifact user protocol
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22 */
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23 public class UserClient {
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24
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25 private static final Logger logger = Logger.getLogger(UserClient.class);
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26
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27 private String url;
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28
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29 public UserClient(String url) {
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30 this.url = url;
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31 }
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32
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33 public boolean userExists(User user) throws ConnectionException {
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34 if (user == null) {
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35 return false;
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36 }
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37
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38 Element data = this.findUser(user);
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39
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40 String XPATH_USERACCOUNT = "/art:user/art:account/@art:name";
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41
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42 String account = XMLUtils.xpathString(
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43 data, XPATH_USERACCOUNT, ArtifactNamespaceContext.INSTANCE);
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44
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45 if (account == null) {
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46 return false;
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47 }
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48
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49 return account.equals(user.getAccount());
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50 }
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51
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52 public boolean createUser(User user) throws ConnectionException {
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53 if(user == null) {
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54 logger.warn("createUser: given user is null");
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55 return false;
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56 }
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57
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58 logger.debug("Creating new user " + user.getName());
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59 HttpClient client = new HttpClientImpl(this.url);
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60
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61 Document document = XMLUtils.newDocument();
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62
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63 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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64 document,
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65 ArtifactNamespaceContext.NAMESPACE_URI,
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66 ArtifactNamespaceContext.NAMESPACE_PREFIX
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67 );
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68
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69 Element action = creator.create("action");
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70
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71 Element type = creator.create("type");
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72 type.setAttribute("name", "create");
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73 Element artuser = creator.create("user");
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74 artuser.setAttribute("name", user.getName());
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75 Element account = creator.create("account");
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76 account.setAttribute("name", user.getAccount());
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77
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78 //TODO create roles
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79 artuser.appendChild(account);
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80 action.appendChild(type);
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81 action.appendChild(artuser);
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82 document.appendChild(action);
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83
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84 logger.debug("Create user request xml: " + XMLUtils.toString(document));
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85
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86 Document resp = client.createUser(document);
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87
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88 logger.debug("Create user response xml: " + XMLUtils.toString(resp));
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89
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90 String XPATH_RESPONSE = "/art:result";
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91 Node nresult = (Node) XMLUtils.xpath(
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92 resp,
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93 XPATH_RESPONSE,
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94 XPathConstants.NODE,
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95 ArtifactNamespaceContext.INSTANCE);
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96 String result = nresult.getTextContent();
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97 return (result != null && result.equalsIgnoreCase("success"));
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98 }
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99
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100 public NodeList listUsers() throws ConnectionException {
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101 HttpClient client = new HttpClientImpl(this.url);
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102
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103 Document users = (Document) client.listUsers();
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104
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105 String XPATH_USERS = "/art:users/art:user";
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106
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107 return (NodeList) XMLUtils.xpath(
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108 users,
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109 XPATH_USERS,
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110 XPathConstants.NODESET,
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111 ArtifactNamespaceContext.INSTANCE);
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112 }
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113
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114 public Element findUser(User user) throws ConnectionException {
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115 if(user == null) {
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116 throw new IllegalArgumentException("user is null");
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117 }
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118
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119 HttpClient client = new HttpClientImpl(this.url);
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120
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121 Document document = XMLUtils.newDocument();
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122
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123 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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124 document,
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125 ArtifactNamespaceContext.NAMESPACE_URI,
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126 ArtifactNamespaceContext.NAMESPACE_PREFIX
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127 );
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128
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129 Element action = creator.create("action");
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130
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131 Element type = creator.create("type");
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132 type.setAttribute("name", "find");
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133 Element account = creator.create("account");
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134 account.setAttribute("name", user.getAccount());
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135
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136 action.appendChild(type);
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137 action.appendChild(account);
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138 document.appendChild(action);
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139
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140 boolean debug = logger.isDebugEnabled();
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141
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142 if (debug) {
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143 logger.debug("Find user request xml: " +
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144 XMLUtils.toString(document));
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145 }
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146
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147 Document resp = client.findUser(document);
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148
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149 if (debug) {
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150 logger.debug("Find user request response xml: " +
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151 XMLUtils.toString(resp));
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152 }
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153
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154 return resp.getDocumentElement();
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155 }
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156 }
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157 // vim: set si et fileencoding=utf-8 ts=4 sw=4 tw=80:
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http://dive4elements.wald.intevation.org