Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/auth/UserClient.java @ 5861:172338b1407f

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GWT client: Added copyright header.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:30:15 +0200
parents 5aa05a7a34b7
children ea9eef426962
rev   line source
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172338b1407f GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.server.auth;
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10
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11 import javax.xml.xpath.XPathConstants;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import org.w3c.dom.Document;
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16 import org.w3c.dom.Element;
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17 import org.w3c.dom.Node;
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18 import org.w3c.dom.NodeList;
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19
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20 import org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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21 import org.dive4elements.artifacts.common.utils.XMLUtils;
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22
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23 import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException;
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24 import org.dive4elements.artifacts.httpclient.http.HttpClient;
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25 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl;
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26
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27 /**
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28 * UserClient is a class to allow easier communication
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29 * with the REST based artifact user protocol
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30 */
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31 public class UserClient {
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32
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33 private static final Logger logger = Logger.getLogger(UserClient.class);
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34
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35 private String url;
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36
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37 public UserClient(String url) {
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38 this.url = url;
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39 }
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40
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41 public boolean userExists(User user) throws ConnectionException {
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42 if (user == null) {
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43 return false;
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44 }
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45
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46 Element data = this.findUser(user);
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47
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48 String XPATH_USERACCOUNT = "/art:user/art:account/@art:name";
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49
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50 String account = XMLUtils.xpathString(
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51 data, XPATH_USERACCOUNT, ArtifactNamespaceContext.INSTANCE);
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52
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53 if (account == null) {
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54 return false;
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55 }
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56
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57 return account.equals(user.getAccount());
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58 }
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59
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60 public boolean createUser(User user) throws ConnectionException {
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61 if(user == null) {
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62 logger.warn("createUser: given user is null");
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63 return false;
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64 }
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65
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66 logger.debug("Creating new user " + user.getName());
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67 HttpClient client = new HttpClientImpl(this.url);
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68
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69 Document document = XMLUtils.newDocument();
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70
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71 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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72 document,
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73 ArtifactNamespaceContext.NAMESPACE_URI,
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74 ArtifactNamespaceContext.NAMESPACE_PREFIX
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75 );
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76
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77 Element action = creator.create("action");
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78
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79 Element type = creator.create("type");
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80 type.setAttribute("name", "create");
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81 Element artuser = creator.create("user");
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82 artuser.setAttribute("name", user.getName());
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83 Element account = creator.create("account");
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84 account.setAttribute("name", user.getAccount());
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85
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86 //TODO create roles
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87 artuser.appendChild(account);
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88 action.appendChild(type);
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89 action.appendChild(artuser);
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90 document.appendChild(action);
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91
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92 logger.debug("Create user request xml: " + XMLUtils.toString(document));
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93
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94 Document resp = client.createUser(document);
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95
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96 logger.debug("Create user response xml: " + XMLUtils.toString(resp));
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97
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98 String XPATH_RESPONSE = "/art:result";
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99 Node nresult = (Node) XMLUtils.xpath(
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100 resp,
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101 XPATH_RESPONSE,
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102 XPathConstants.NODE,
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103 ArtifactNamespaceContext.INSTANCE);
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104 String result = nresult.getTextContent();
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105 return (result != null && result.equalsIgnoreCase("success"));
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106 }
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107
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108 public NodeList listUsers() throws ConnectionException {
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109 HttpClient client = new HttpClientImpl(this.url);
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110
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111 Document users = (Document) client.listUsers();
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112
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113 String XPATH_USERS = "/art:users/art:user";
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114
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115 return (NodeList) XMLUtils.xpath(
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116 users,
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117 XPATH_USERS,
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118 XPathConstants.NODESET,
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119 ArtifactNamespaceContext.INSTANCE);
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120 }
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121
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122 public Element findUser(User user) throws ConnectionException {
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123 if(user == null) {
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124 throw new IllegalArgumentException("user is null");
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125 }
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126
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127 HttpClient client = new HttpClientImpl(this.url);
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128
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129 Document document = XMLUtils.newDocument();
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130
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131 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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132 document,
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133 ArtifactNamespaceContext.NAMESPACE_URI,
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134 ArtifactNamespaceContext.NAMESPACE_PREFIX
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135 );
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136
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137 Element action = creator.create("action");
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138
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139 Element type = creator.create("type");
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140 type.setAttribute("name", "find");
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141 Element account = creator.create("account");
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142 account.setAttribute("name", user.getAccount());
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143
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144 action.appendChild(type);
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145 action.appendChild(account);
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146 document.appendChild(action);
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147
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148 boolean debug = logger.isDebugEnabled();
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149
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150 if (debug) {
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151 logger.debug("Find user request xml: " +
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152 XMLUtils.toString(document));
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153 }
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154
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155 Document resp = client.findUser(document);
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156
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157 if (debug) {
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158 logger.debug("Find user request response xml: " +
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159 XMLUtils.toString(resp));
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160 }
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161
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162 return resp.getDocumentElement();
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163 }
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164 }
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165 // vim: set si et fileencoding=utf-8 ts=4 sw=4 tw=80:
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http://dive4elements.wald.intevation.org