1 | /*
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2 | * DerbyWrapper.java
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3 | * Copyright (C) 2008 New Zealand Digital Library, http://www.nzdl.org
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4 | *
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5 | * This program is free software; you can redistribute it and/or modify
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6 | * it under the terms of the GNU General Public License as published by
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7 | * the Free Software Foundation; either version 2 of the License, or
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8 | * (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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18 | */
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19 | package org.greenstone.gsdl3.util;
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20 |
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21 | import java.sql.Connection;
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22 | import java.sql.DriverManager;
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23 | import java.sql.PreparedStatement;
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24 | import java.sql.ResultSet;
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25 | import java.sql.SQLException;
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26 | import java.sql.Statement;
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27 | import java.util.ArrayList;
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28 | import java.util.HashMap;
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29 |
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30 | import org.greenstone.gsdl3.service.Authentication;
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31 |
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32 | public class DerbyWrapper
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33 | {
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34 | static final String PROTOCOL = "jdbc:derby:";
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35 | static final String DRIVER = "org.apache.derby.jdbc.EmbeddedDriver";
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36 | static final String USERSDB = "usersDB";
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37 | static final String USERS = "users";
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38 | static final String ROLES = "roles";
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39 | static final String DATA = "data";
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40 | private Connection conn = null;
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41 | private Statement state = null;
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42 | private String protocol_str;
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43 |
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44 | public DerbyWrapper()
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45 | {
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46 | }
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47 |
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48 | public DerbyWrapper(String dbpath)
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49 | {
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50 | connectDatabase(dbpath, false);
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51 | }
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52 |
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53 | public void connectDatabase(String dbpath, boolean create_database)
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54 | {
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55 | try
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56 | {
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57 | Class.forName(DRIVER).newInstance();
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58 | //System.out.println("Loaded the embedded driver.");
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59 | protocol_str = PROTOCOL + dbpath;
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60 | if (create_database)
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61 | {
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62 | conn = DriverManager.getConnection(protocol_str + ";create=true");
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63 | }
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64 | else
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65 | {
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66 | conn = DriverManager.getConnection(protocol_str);
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67 | }
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68 | state = conn.createStatement();
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69 | }
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70 | catch (Throwable e)
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71 | {
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72 | System.out.println("exception thrown:");
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73 | if (e instanceof SQLException)
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74 | {
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75 | printSQLError((SQLException) e);
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76 | }
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77 | else
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78 | {
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79 | e.printStackTrace();
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80 | }
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81 | }
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82 | }
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83 |
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84 | public void closeDatabase()
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85 | {
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86 | //state = null;
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87 | //conn = null;
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88 | boolean gotSQLExc = false;
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89 | try
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90 | {
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91 | // shutdown the database
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92 | DriverManager.getConnection(protocol_str + ";shutdown=true");
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93 |
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94 | }
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95 | catch (SQLException se)
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96 | {
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97 | // this is good (i.e. what Derby is designed to do on a successful shutdown)
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98 | gotSQLExc = true;
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99 | }
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100 | catch (Exception e)
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101 | {
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102 | e.printStackTrace();
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103 | }
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104 |
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105 | if (!gotSQLExc)
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106 | {
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107 | System.err.println("Warning: Derby Database did not shut down normally");
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108 | }
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109 | }
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110 |
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111 | public static void shutdownDatabaseServer()
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112 | {
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113 | boolean gotSQLExc = false;
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114 |
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115 | try
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116 | {
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117 | // shutdown the whole server
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118 | DriverManager.getConnection(PROTOCOL + ";shutdown=true");
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119 |
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120 | }
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121 | catch (SQLException se)
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122 | {
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123 | // this is good (i.e. what Derby is designed to do on a successful shutdown)
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124 | gotSQLExc = true;
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125 | //System.out.println("Shutdown returned: " + se);
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126 | }
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127 | catch (Exception e)
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128 | {
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129 |
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130 | e.printStackTrace();
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131 | }
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132 | if (!gotSQLExc)
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133 | {
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134 | System.err.println("Warning: Derby did not shut down normally");
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135 | }
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136 | }
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137 |
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138 | public void clearUserData()
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139 | {
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140 | try
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141 | {
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142 | conn.setAutoCommit(false);
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143 | state.execute("drop table data");
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144 | state.execute("create table data (username varchar(40) not null, name varchar(128) not null, value clob, primary key (username, name))");
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145 | conn.commit();
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146 | }
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147 | catch (SQLException e)
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148 | {
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149 | e.printStackTrace();
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150 | }
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151 | }
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152 |
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153 | public void createDatabase()
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154 | {
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155 | try
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156 | {
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157 | conn.setAutoCommit(false);
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158 | state.execute("create table users (username varchar(40) not null, password varchar(40) not null, accountstatus varchar(10), comment varchar(100), email varchar(40), primary key(username))");
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159 | state.execute("create table roles (username varchar(40) not null, role varchar(40) not null, primary key (username, role))");
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160 | state.execute("create table data (username varchar(40) not null, name varchar(128) not null, value clob, primary key (username, name))");
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161 | state.execute("insert into " + USERS + " values ('admin', '" + Authentication.hashPassword("admin") + "', 'true', 'change the password for this account as soon as possible', '')");
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162 | state.execute("insert into " + ROLES + " values ('admin', 'administrator')");
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163 | state.execute("insert into " + ROLES + " values ('admin', 'all-collections-editor')");
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164 | conn.commit();
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165 | }
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166 | catch (Exception ex)
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167 | {
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168 | ex.printStackTrace();
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169 | }
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170 | }
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171 |
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172 | public UserQueryResult listAllUser() throws SQLException
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173 | {
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174 | UserQueryResult userQueryResult = new UserQueryResult();
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175 | String sql_list_all_user = "SELECT username, password, accountstatus, email, comment FROM " + USERS;
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176 |
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177 | ArrayList<HashMap<String, String>> users = new ArrayList<HashMap<String, String>>();
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178 | ResultSet rs = state.executeQuery(sql_list_all_user);
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179 | while (rs.next())
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180 | {
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181 | HashMap<String, String> user = new HashMap<String, String>();
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182 | user.put("username", rs.getString("username"));
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183 | user.put("password", rs.getString("password"));
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184 | user.put("as", rs.getString("accountstatus"));
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185 | user.put("comment", rs.getString("comment"));
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186 | user.put("email", rs.getString("email"));
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187 |
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188 | users.add(user);
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189 | }
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190 |
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191 | for (HashMap<String, String> user : users)
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192 | {
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193 | ResultSet gs = state.executeQuery("SELECT role FROM " + ROLES + " WHERE username = '" + user.get("username") + "'");
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194 | String group = "";
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195 | while (gs.next())
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196 | {
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197 | if (!group.equals(""))
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198 | {
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199 | group += ",";
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200 | }
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201 | group += gs.getString("role");
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202 | }
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203 | userQueryResult.addUserTerm(user.get("username"), user.get("password"), group, user.get("as"), user.get("comment"), user.get("email"));
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204 | }
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205 |
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206 | if (userQueryResult.getSize() == 0)
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207 | {
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208 | System.out.println("couldn't find any users");
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209 | return null;
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210 | }
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211 | else
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212 | {
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213 | return userQueryResult;
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214 | }
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215 | }
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216 |
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217 | public boolean addUserData(String username, String name, String value)
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218 | {
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219 | //Check if we already have a value under this name
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220 | boolean found = false;
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221 | try
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222 | {
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223 | ResultSet rs = state.executeQuery("SELECT * FROM " + DATA + " WHERE username='" + username + "' AND name='" + name + "'");
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224 | if (rs.next())
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225 | {
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226 | found = true;
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227 | }
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228 | else
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229 | {
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230 | found = false;
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231 | }
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232 | }
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233 | catch (Exception ex)
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234 | {
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235 | System.out.println("exception thrown:");
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236 | if (ex instanceof SQLException)
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237 | {
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238 | printSQLError((SQLException) ex);
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239 | }
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240 | else
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241 | {
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242 | ex.printStackTrace();
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243 | }
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244 | closeDatabase();
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245 | System.out.println("Error:" + ex.getMessage());
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246 | return false;
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247 | }
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248 |
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249 | try
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250 | {
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251 | if (!found)
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252 | {
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253 | PreparedStatement stmt = null;
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254 | stmt = conn.prepareStatement("INSERT INTO " + DATA + " VALUES (?, ?, ?)");
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255 | stmt.setString(1, username);
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256 | stmt.setString(2, name);
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257 | stmt.setString(3, value);
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258 | stmt.executeUpdate();
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259 | }
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260 | else
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261 | {
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262 | PreparedStatement stmt = null;
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263 | stmt = conn.prepareStatement("UPDATE " + DATA + " SET value=? WHERE username=? AND name=?");
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264 | stmt.setString(1, value);
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265 | stmt.setString(2, username);
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266 | stmt.setString(3, name);
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267 | stmt.executeUpdate();
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268 | }
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269 | }
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270 | catch (Exception ex)
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271 | {
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272 | System.out.println("exception thrown:");
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273 | if (ex instanceof SQLException)
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274 | {
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275 | printSQLError((SQLException) ex);
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276 | }
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277 | else
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278 | {
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279 | ex.printStackTrace();
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280 | }
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281 | closeDatabase();
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282 | System.out.println("Error:" + ex.getMessage());
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283 | return false;
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284 | }
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285 | return true;
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286 | }
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287 |
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288 | public String getUserData(String username, String name)
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289 | {
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290 | try
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291 | {
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292 | ResultSet rs = state.executeQuery("SELECT * FROM " + DATA + " WHERE username='" + username + "' AND name='" + name + "'");
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293 | if (rs.next())
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294 | {
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295 | return rs.getString("value");
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296 | }
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297 | }
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298 | catch (Exception ex)
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299 | {
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300 | System.out.println("exception thrown:");
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301 | if (ex instanceof SQLException)
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302 | {
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303 | printSQLError((SQLException) ex);
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304 | }
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305 | else
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306 | {
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307 | ex.printStackTrace();
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308 | }
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309 | closeDatabase();
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310 | System.out.println("Error:" + ex.getMessage());
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311 | }
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312 | return null;
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313 | }
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314 |
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315 | public boolean addUser(String username, String password, String groups, String accountstatus, String comment, String email)
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316 | {
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317 | try
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318 | {
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319 | conn.setAutoCommit(false);
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320 | String sql_insert_user = "insert into " + USERS + " values ('" + username + "', '" + password + "', '" + accountstatus + "', '" + comment + "', '" + email + "')";
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321 | state.execute(sql_insert_user);
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322 |
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323 | String[] groupArray = groups.split(",");
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324 | for (String g : groupArray)
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325 | {
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326 | String sql_insert_group = "insert into " + ROLES + " values ('" + username + "', '" + g + "')";
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327 | state.execute(sql_insert_group);
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328 | }
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329 |
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330 | conn.commit();
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331 | }
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332 | catch (Throwable e)
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333 | {
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334 | System.out.println("exception thrown:");
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335 | if (e instanceof SQLException)
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336 | {
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337 | printSQLError((SQLException) e);
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338 | }
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339 | else
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340 | {
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341 | e.printStackTrace();
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342 | }
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343 | closeDatabase();
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344 | System.out.println("Error:" + e.getMessage());
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345 | return false;
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346 | }
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347 |
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348 | return true;
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349 | }
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350 |
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351 | public boolean deleteUser(String del_username)
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352 | {
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353 | try
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354 | {
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355 | conn.setAutoCommit(false);
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356 | String sql_delete_user = "delete from " + USERS + " where username='" + del_username + "'";
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357 | String sql_delete_groups = "delete from " + ROLES + " where username='" + del_username + "'";
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358 | state.execute(sql_delete_user);
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359 | state.execute(sql_delete_groups);
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360 | conn.commit();
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361 | }
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362 | catch (Throwable e)
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363 | {
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364 | System.out.println("exception thrown:");
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365 | if (e instanceof SQLException)
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366 | {
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367 | printSQLError((SQLException) e);
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368 | }
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369 | else
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370 | {
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371 | e.printStackTrace();
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372 | }
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373 | closeDatabase();
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374 | return false;
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375 | }
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376 | return true;
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377 | }
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378 |
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379 | public boolean deleteAllUser() throws SQLException
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380 | {
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381 | conn.setAutoCommit(false);
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382 | try
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383 | {
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384 | state.execute("delete from " + USERS);
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385 | state.execute("delete from " + ROLES);
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386 | conn.commit();
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387 | }
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388 | catch (Throwable e)
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389 | {
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390 | System.out.println("exception thrown:");
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391 | if (e instanceof SQLException)
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392 | {
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393 | printSQLError((SQLException) e);
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394 | }
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395 | else
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396 | {
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397 | e.printStackTrace();
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398 | }
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399 | closeDatabase();
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400 | return false;
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401 | }
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402 | return true;
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403 | }
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404 |
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405 | public UserQueryResult findUser(String username, String password)
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406 | {
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407 | UserQueryResult userQueryResult = new UserQueryResult();
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408 |
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409 | try
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410 | {
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411 | conn.setAutoCommit(false);
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412 | }
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413 | catch (Exception ex)
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414 | {
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415 | ex.printStackTrace();
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416 | return null;
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417 | }
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418 |
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419 | String sql_find_user = "SELECT username, password, accountstatus, comment, email FROM " + USERS;
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420 | String append_sql = "";
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421 |
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422 | if (username != null)
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423 | {
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424 | append_sql = " WHERE username = '" + username + "'";
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425 | }
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426 | if (password != null)
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427 | {
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428 | if (append_sql.equals(""))
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429 | {
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430 | append_sql = " WHERE password = '" + password + "'";
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431 | }
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432 | else
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433 | {
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434 | append_sql += " and password = '" + password + "'";
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435 | }
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436 | }
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437 | if (!append_sql.equals(""))
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438 | {
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439 | sql_find_user += append_sql;
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440 | }
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441 |
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442 | try
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443 | {
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444 | ArrayList<HashMap<String, String>> users = new ArrayList<HashMap<String, String>>();
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445 | ResultSet rs = state.executeQuery(sql_find_user);
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446 | while (rs.next())
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447 | {
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448 | HashMap<String, String> user = new HashMap<String, String>();
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449 | user.put("username", rs.getString("username"));
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450 | user.put("password", rs.getString("password"));
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451 | user.put("as", rs.getString("accountstatus"));
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452 | user.put("comment", rs.getString("comment"));
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453 | user.put("email", rs.getString("email"));
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454 |
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455 | users.add(user);
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456 | }
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457 | conn.commit();
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458 |
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459 | for (HashMap<String, String> user : users)
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460 | {
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461 | ResultSet gs = state.executeQuery("SELECT role FROM " + ROLES + " WHERE username = '" + user.get("username") + "'");
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462 |
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463 | String group = "";
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464 | while (gs.next())
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465 | {
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466 | if (!group.equals(""))
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467 | {
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468 | group += ",";
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469 | }
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470 | group += gs.getString("role");
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471 | }
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472 |
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473 | userQueryResult.addUserTerm(user.get("username"), user.get("password"), group, user.get("as"), user.get("comment"), user.get("email"));
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474 | }
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475 | }
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476 | catch (Exception ex)
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477 | {
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478 | ex.printStackTrace();
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479 | return null;
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480 | }
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481 |
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482 | if (userQueryResult.getSize() > 0)
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483 | {
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484 | return userQueryResult;
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485 | }
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486 | else
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487 | {
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488 | return null;
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489 | }
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490 | }
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491 |
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492 | // findUser(null) will return all users, which is why a UserQueryResult
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493 | // (a vector of UserTermInfo) is returned
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494 | public UserQueryResult findUser(String username) throws SQLException
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495 | {
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496 | UserQueryResult userQueryResult = new UserQueryResult();
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497 |
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498 | conn.setAutoCommit(false);
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499 | String sql_find_user = "SELECT username, password, accountstatus, comment, email FROM " + USERS;
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500 | String append_sql = "";
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501 |
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502 | if (username != null)
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503 | {
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504 | append_sql = " WHERE username = '" + username + "'";
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505 | }
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506 | if (!append_sql.equals(""))
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507 | {
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508 | sql_find_user += append_sql;
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509 | }
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510 |
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511 | ArrayList<HashMap<String, String>> users = new ArrayList<HashMap<String, String>>();
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512 | ResultSet rs = state.executeQuery(sql_find_user);
|
---|
513 | while (rs.next())
|
---|
514 | {
|
---|
515 | HashMap<String, String> user = new HashMap<String, String>();
|
---|
516 | user.put("username", rs.getString("username"));
|
---|
517 | user.put("password", rs.getString("password"));
|
---|
518 | user.put("as", rs.getString("accountstatus"));
|
---|
519 | user.put("comment", rs.getString("comment"));
|
---|
520 | user.put("email", rs.getString("email"));
|
---|
521 |
|
---|
522 | users.add(user);
|
---|
523 | }
|
---|
524 | conn.commit();
|
---|
525 |
|
---|
526 | for (HashMap<String, String> user : users)
|
---|
527 | {
|
---|
528 | ResultSet gs = state.executeQuery("SELECT role FROM " + ROLES + " WHERE username = '" + user.get("username") + "'");
|
---|
529 |
|
---|
530 | String group = "";
|
---|
531 | while (gs.next())
|
---|
532 | {
|
---|
533 | if (!group.equals(""))
|
---|
534 | {
|
---|
535 | group += ",";
|
---|
536 | }
|
---|
537 | group += gs.getString("role");
|
---|
538 | }
|
---|
539 |
|
---|
540 | userQueryResult.addUserTerm(user.get("username"), user.get("password"), group, user.get("as"), user.get("comment"), user.get("email"));
|
---|
541 | }
|
---|
542 |
|
---|
543 | if (userQueryResult.getSize() > 0)
|
---|
544 | {
|
---|
545 | return userQueryResult;
|
---|
546 | }
|
---|
547 | else
|
---|
548 | {
|
---|
549 | System.out.println("couldn't find the user");
|
---|
550 | return null;
|
---|
551 | }
|
---|
552 | }
|
---|
553 |
|
---|
554 | public String modifyUserInfo(String username, String new_password, String groups, String accountstatus, String comment, String email)
|
---|
555 | {
|
---|
556 | try
|
---|
557 | {
|
---|
558 | conn.setAutoCommit(false);
|
---|
559 | String sql_modify_user_info = "update " + USERS + " set ";
|
---|
560 |
|
---|
561 | boolean needComma = false;
|
---|
562 | if (new_password != null && !new_password.equals(""))
|
---|
563 | {
|
---|
564 | sql_modify_user_info += "password='" + new_password + "'";
|
---|
565 | needComma = true;
|
---|
566 | }
|
---|
567 |
|
---|
568 | if (accountstatus != null && comment != null)
|
---|
569 | {
|
---|
570 | sql_modify_user_info += (needComma ? "," : "") + " accountstatus='" + accountstatus + "'" + ", comment='" + comment + "'";
|
---|
571 | needComma = true;
|
---|
572 | }
|
---|
573 |
|
---|
574 | if (email != null)
|
---|
575 | {
|
---|
576 | sql_modify_user_info += (needComma ? "," : "") + " email='" + email + "'";
|
---|
577 | }
|
---|
578 |
|
---|
579 | sql_modify_user_info += " where username='" + username + "'";
|
---|
580 | state.execute(sql_modify_user_info);
|
---|
581 |
|
---|
582 | String sql_delete_groups = "delete from " + ROLES + " where username='" + username + "'";
|
---|
583 | state.execute(sql_delete_groups);
|
---|
584 |
|
---|
585 | String[] groupsArray = groups.split(",");
|
---|
586 | for (String g : groupsArray)
|
---|
587 | {
|
---|
588 | String sql_insert_group = "insert into " + ROLES + " values ('" + username + "', '" + g + "')";
|
---|
589 | state.execute(sql_insert_group);
|
---|
590 | }
|
---|
591 |
|
---|
592 | conn.commit();
|
---|
593 | }
|
---|
594 | catch (Throwable e)
|
---|
595 | {
|
---|
596 | System.out.println("exception thrown:");
|
---|
597 | if (e instanceof SQLException)
|
---|
598 | {
|
---|
599 | printSQLError((SQLException) e);
|
---|
600 | }
|
---|
601 | else
|
---|
602 | {
|
---|
603 | e.printStackTrace();
|
---|
604 | }
|
---|
605 | closeDatabase();
|
---|
606 | return "Error:" + e.getMessage();
|
---|
607 | }
|
---|
608 | return "succeed";
|
---|
609 | }
|
---|
610 |
|
---|
611 | public void db2txt()
|
---|
612 | {
|
---|
613 | System.err.println(db2txtString());
|
---|
614 | }
|
---|
615 |
|
---|
616 | public String db2txtString()
|
---|
617 | {
|
---|
618 | //String db2txt = "Error in converting db2txt string.";
|
---|
619 | String db2txt = "";
|
---|
620 | try
|
---|
621 | {
|
---|
622 | conn.setAutoCommit(false); // An exception at this line can happen when the GS3 tomcat server is already running
|
---|
623 | // and GS3 is already accessing the usersDB when this function independently tries to
|
---|
624 | // connect to it (via usersDB2txt.java's main(). For an explanation of the possible
|
---|
625 | // reasons, see http://db.apache.org/derby/papers/DerbyTut/embedded_intro.html
|
---|
626 | // section "Embedded Derby supports multiple users in one JVM".
|
---|
627 | String sql_list_all_user = "select username, password, accountstatus, comment, email from " + USERS;
|
---|
628 | ResultSet rs = state.executeQuery(sql_list_all_user);
|
---|
629 |
|
---|
630 | ArrayList<HashMap<String, String>> infoMap = new ArrayList<HashMap<String, String>>();
|
---|
631 |
|
---|
632 | while (rs.next())
|
---|
633 | {
|
---|
634 | HashMap<String, String> userMap = new HashMap<String, String>();
|
---|
635 | userMap.put("username", rs.getString("username"));
|
---|
636 | userMap.put("password", rs.getString("password"));
|
---|
637 | userMap.put("status", rs.getString("accountstatus"));
|
---|
638 | userMap.put("comment", rs.getString("comment"));
|
---|
639 | userMap.put("email", rs.getString("email"));
|
---|
640 | infoMap.add(userMap);
|
---|
641 | }
|
---|
642 | conn.commit();
|
---|
643 |
|
---|
644 | StringBuffer buffer = new StringBuffer();//("-------------------------------------");
|
---|
645 | for (HashMap<String, String> user : infoMap)
|
---|
646 | {
|
---|
647 | ResultSet groupsSet = state.executeQuery("SELECT role FROM " + ROLES + " WHERE username = '" + user.get("username") + "'");
|
---|
648 | String returnedGroups = "";
|
---|
649 | while (groupsSet.next())
|
---|
650 | {
|
---|
651 | if (!returnedGroups.equals(""))
|
---|
652 | {
|
---|
653 | returnedGroups += ",";
|
---|
654 | }
|
---|
655 | returnedGroups += groupsSet.getString("role");
|
---|
656 | }
|
---|
657 | conn.commit();
|
---|
658 |
|
---|
659 | buffer.append("USERNAME = " + user.get("username"));
|
---|
660 | buffer.append("\nPASSWORD = " + user.get("password"));
|
---|
661 | buffer.append("\nGROUPS = " + returnedGroups);
|
---|
662 | buffer.append("\nSTATUS = " + user.get("status"));
|
---|
663 | buffer.append("\nCOMMENT = " + user.get("comment"));
|
---|
664 | buffer.append("\nEMAIL = " + user.get("email"));
|
---|
665 | buffer.append("\n-------------------------------------\n");
|
---|
666 | }
|
---|
667 | db2txt = buffer.toString();
|
---|
668 |
|
---|
669 | conn.commit();
|
---|
670 | closeDatabase();
|
---|
671 | }
|
---|
672 | catch (Exception ex)
|
---|
673 | {
|
---|
674 | ex.printStackTrace();
|
---|
675 | }
|
---|
676 | finally
|
---|
677 | {
|
---|
678 | return db2txt;
|
---|
679 | }
|
---|
680 | }
|
---|
681 |
|
---|
682 | static void printSQLError(SQLException e)
|
---|
683 | {
|
---|
684 | while (e != null)
|
---|
685 | {
|
---|
686 | System.out.println(e.toString());
|
---|
687 | e = e.getNextException();
|
---|
688 | }
|
---|
689 | }
|
---|
690 | }
|
---|