Shuyi Chen | d7955ce | 2013-05-22 14:51:55 -0700 | [diff] [blame] | 1 | /** |
| 2 | * $RCSfile$ |
| 3 | * $Revision$ |
| 4 | * $Date$ |
| 5 | * |
| 6 | * Copyright 2003-2007 Jive Software. |
| 7 | * |
| 8 | * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | * you may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
| 11 | * |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 13 | * |
| 14 | * Unless required by applicable law or agreed to in writing, software |
| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | * See the License for the specific language governing permissions and |
| 18 | * limitations under the License. |
| 19 | */ |
| 20 | |
| 21 | package org.jivesoftware.smack; |
| 22 | |
| 23 | import org.jivesoftware.smack.filter.AndFilter; |
| 24 | import org.jivesoftware.smack.filter.PacketFilter; |
| 25 | import org.jivesoftware.smack.filter.PacketIDFilter; |
| 26 | import org.jivesoftware.smack.filter.PacketTypeFilter; |
| 27 | import org.jivesoftware.smack.packet.IQ; |
| 28 | import org.jivesoftware.smack.packet.Registration; |
| 29 | import org.jivesoftware.smack.util.StringUtils; |
| 30 | |
| 31 | import java.util.Collection; |
| 32 | import java.util.Collections; |
| 33 | import java.util.HashMap; |
| 34 | import java.util.HashSet; |
| 35 | import java.util.List; |
| 36 | import java.util.Map; |
| 37 | import java.util.Set; |
| 38 | |
| 39 | /** |
| 40 | * Allows creation and management of accounts on an XMPP server. |
| 41 | * |
| 42 | * @see Connection#getAccountManager() |
| 43 | * @author Matt Tucker |
| 44 | */ |
| 45 | public class AccountManager { |
| 46 | |
| 47 | private Connection connection; |
| 48 | private Registration info = null; |
| 49 | |
| 50 | /** |
| 51 | * Flag that indicates whether the server supports In-Band Registration. |
| 52 | * In-Band Registration may be advertised as a stream feature. If no stream feature |
| 53 | * was advertised from the server then try sending an IQ packet to discover if In-Band |
| 54 | * Registration is available. |
| 55 | */ |
| 56 | private boolean accountCreationSupported = false; |
| 57 | |
| 58 | /** |
| 59 | * Creates a new AccountManager instance. |
| 60 | * |
| 61 | * @param connection a connection to a XMPP server. |
| 62 | */ |
| 63 | public AccountManager(Connection connection) { |
| 64 | this.connection = connection; |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * Sets whether the server supports In-Band Registration. In-Band Registration may be |
| 69 | * advertised as a stream feature. If no stream feature was advertised from the server |
| 70 | * then try sending an IQ packet to discover if In-Band Registration is available. |
| 71 | * |
| 72 | * @param accountCreationSupported true if the server supports In-Band Registration. |
| 73 | */ |
| 74 | void setSupportsAccountCreation(boolean accountCreationSupported) { |
| 75 | this.accountCreationSupported = accountCreationSupported; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Returns true if the server supports creating new accounts. Many servers require |
| 80 | * that you not be currently authenticated when creating new accounts, so the safest |
| 81 | * behavior is to only create new accounts before having logged in to a server. |
| 82 | * |
| 83 | * @return true if the server support creating new accounts. |
| 84 | */ |
| 85 | public boolean supportsAccountCreation() { |
| 86 | // Check if we already know that the server supports creating new accounts |
| 87 | if (accountCreationSupported) { |
| 88 | return true; |
| 89 | } |
| 90 | // No information is known yet (e.g. no stream feature was received from the server |
| 91 | // indicating that it supports creating new accounts) so send an IQ packet as a way |
| 92 | // to discover if this feature is supported |
| 93 | try { |
| 94 | if (info == null) { |
| 95 | getRegistrationInfo(); |
| 96 | accountCreationSupported = info.getType() != IQ.Type.ERROR; |
| 97 | } |
| 98 | return accountCreationSupported; |
| 99 | } |
| 100 | catch (XMPPException xe) { |
| 101 | return false; |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Returns an unmodifiable collection of the names of the required account attributes. |
| 107 | * All attributes must be set when creating new accounts. The standard set of possible |
| 108 | * attributes are as follows: <ul> |
| 109 | * <li>name -- the user's name. |
| 110 | * <li>first -- the user's first name. |
| 111 | * <li>last -- the user's last name. |
| 112 | * <li>email -- the user's email address. |
| 113 | * <li>city -- the user's city. |
| 114 | * <li>state -- the user's state. |
| 115 | * <li>zip -- the user's ZIP code. |
| 116 | * <li>phone -- the user's phone number. |
| 117 | * <li>url -- the user's website. |
| 118 | * <li>date -- the date the registration took place. |
| 119 | * <li>misc -- other miscellaneous information to associate with the account. |
| 120 | * <li>text -- textual information to associate with the account. |
| 121 | * <li>remove -- empty flag to remove account. |
| 122 | * </ul><p> |
| 123 | * |
| 124 | * Typically, servers require no attributes when creating new accounts, or just |
| 125 | * the user's email address. |
| 126 | * |
| 127 | * @return the required account attributes. |
| 128 | */ |
| 129 | public Collection<String> getAccountAttributes() { |
| 130 | try { |
| 131 | if (info == null) { |
| 132 | getRegistrationInfo(); |
| 133 | } |
| 134 | Map<String, String> attributes = info.getAttributes(); |
| 135 | if (attributes != null) { |
| 136 | return Collections.unmodifiableSet(attributes.keySet()); |
| 137 | } |
| 138 | } |
| 139 | catch (XMPPException xe) { |
| 140 | xe.printStackTrace(); |
| 141 | } |
| 142 | return Collections.emptySet(); |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Returns the value of a given account attribute or <tt>null</tt> if the account |
| 147 | * attribute wasn't found. |
| 148 | * |
| 149 | * @param name the name of the account attribute to return its value. |
| 150 | * @return the value of the account attribute or <tt>null</tt> if an account |
| 151 | * attribute wasn't found for the requested name. |
| 152 | */ |
| 153 | public String getAccountAttribute(String name) { |
| 154 | try { |
| 155 | if (info == null) { |
| 156 | getRegistrationInfo(); |
| 157 | } |
| 158 | return info.getAttributes().get(name); |
| 159 | } |
| 160 | catch (XMPPException xe) { |
| 161 | xe.printStackTrace(); |
| 162 | } |
| 163 | return null; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Returns the instructions for creating a new account, or <tt>null</tt> if there |
| 168 | * are no instructions. If present, instructions should be displayed to the end-user |
| 169 | * that will complete the registration process. |
| 170 | * |
| 171 | * @return the account creation instructions, or <tt>null</tt> if there are none. |
| 172 | */ |
| 173 | public String getAccountInstructions() { |
| 174 | try { |
| 175 | if (info == null) { |
| 176 | getRegistrationInfo(); |
| 177 | } |
| 178 | return info.getInstructions(); |
| 179 | } |
| 180 | catch (XMPPException xe) { |
| 181 | return null; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Creates a new account using the specified username and password. The server may |
| 187 | * require a number of extra account attributes such as an email address and phone |
| 188 | * number. In that case, Smack will attempt to automatically set all required |
| 189 | * attributes with blank values, which may or may not be accepted by the server. |
| 190 | * Therefore, it's recommended to check the required account attributes and to let |
| 191 | * the end-user populate them with real values instead. |
| 192 | * |
| 193 | * @param username the username. |
| 194 | * @param password the password. |
| 195 | * @throws XMPPException if an error occurs creating the account. |
| 196 | */ |
| 197 | public void createAccount(String username, String password) throws XMPPException { |
| 198 | if (!supportsAccountCreation()) { |
| 199 | throw new XMPPException("Server does not support account creation."); |
| 200 | } |
| 201 | // Create a map for all the required attributes, but give them blank values. |
| 202 | Map<String, String> attributes = new HashMap<String, String>(); |
| 203 | for (String attributeName : getAccountAttributes()) { |
| 204 | attributes.put(attributeName, ""); |
| 205 | } |
| 206 | createAccount(username, password, attributes); |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Creates a new account using the specified username, password and account attributes. |
| 211 | * The attributes Map must contain only String name/value pairs and must also have values |
| 212 | * for all required attributes. |
| 213 | * |
| 214 | * @param username the username. |
| 215 | * @param password the password. |
| 216 | * @param attributes the account attributes. |
| 217 | * @throws XMPPException if an error occurs creating the account. |
| 218 | * @see #getAccountAttributes() |
| 219 | */ |
| 220 | public void createAccount(String username, String password, Map<String, String> attributes) |
| 221 | throws XMPPException |
| 222 | { |
| 223 | if (!supportsAccountCreation()) { |
| 224 | throw new XMPPException("Server does not support account creation."); |
| 225 | } |
| 226 | Registration reg = new Registration(); |
| 227 | reg.setType(IQ.Type.SET); |
| 228 | reg.setTo(connection.getServiceName()); |
| 229 | attributes.put("username",username); |
| 230 | attributes.put("password",password); |
| 231 | reg.setAttributes(attributes); |
| 232 | PacketFilter filter = new AndFilter(new PacketIDFilter(reg.getPacketID()), |
| 233 | new PacketTypeFilter(IQ.class)); |
| 234 | PacketCollector collector = connection.createPacketCollector(filter); |
| 235 | connection.sendPacket(reg); |
| 236 | IQ result = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout()); |
| 237 | // Stop queuing results |
| 238 | collector.cancel(); |
| 239 | if (result == null) { |
| 240 | throw new XMPPException("No response from server."); |
| 241 | } |
| 242 | else if (result.getType() == IQ.Type.ERROR) { |
| 243 | throw new XMPPException(result.getError()); |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | /** |
| 248 | * Changes the password of the currently logged-in account. This operation can only |
| 249 | * be performed after a successful login operation has been completed. Not all servers |
| 250 | * support changing passwords; an XMPPException will be thrown when that is the case. |
| 251 | * |
| 252 | * @throws IllegalStateException if not currently logged-in to the server. |
| 253 | * @throws XMPPException if an error occurs when changing the password. |
| 254 | */ |
| 255 | public void changePassword(String newPassword) throws XMPPException { |
| 256 | Registration reg = new Registration(); |
| 257 | reg.setType(IQ.Type.SET); |
| 258 | reg.setTo(connection.getServiceName()); |
| 259 | Map<String, String> map = new HashMap<String, String>(); |
| 260 | map.put("username",StringUtils.parseName(connection.getUser())); |
| 261 | map.put("password",newPassword); |
| 262 | reg.setAttributes(map); |
| 263 | PacketFilter filter = new AndFilter(new PacketIDFilter(reg.getPacketID()), |
| 264 | new PacketTypeFilter(IQ.class)); |
| 265 | PacketCollector collector = connection.createPacketCollector(filter); |
| 266 | connection.sendPacket(reg); |
| 267 | IQ result = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout()); |
| 268 | // Stop queuing results |
| 269 | collector.cancel(); |
| 270 | if (result == null) { |
| 271 | throw new XMPPException("No response from server."); |
| 272 | } |
| 273 | else if (result.getType() == IQ.Type.ERROR) { |
| 274 | throw new XMPPException(result.getError()); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * Deletes the currently logged-in account from the server. This operation can only |
| 280 | * be performed after a successful login operation has been completed. Not all servers |
| 281 | * support deleting accounts; an XMPPException will be thrown when that is the case. |
| 282 | * |
| 283 | * @throws IllegalStateException if not currently logged-in to the server. |
| 284 | * @throws XMPPException if an error occurs when deleting the account. |
| 285 | */ |
| 286 | public void deleteAccount() throws XMPPException { |
| 287 | if (!connection.isAuthenticated()) { |
| 288 | throw new IllegalStateException("Must be logged in to delete a account."); |
| 289 | } |
| 290 | Registration reg = new Registration(); |
| 291 | reg.setType(IQ.Type.SET); |
| 292 | reg.setTo(connection.getServiceName()); |
| 293 | Map<String, String> attributes = new HashMap<String, String>(); |
| 294 | // To delete an account, we add a single attribute, "remove", that is blank. |
| 295 | attributes.put("remove", ""); |
| 296 | reg.setAttributes(attributes); |
| 297 | PacketFilter filter = new AndFilter(new PacketIDFilter(reg.getPacketID()), |
| 298 | new PacketTypeFilter(IQ.class)); |
| 299 | PacketCollector collector = connection.createPacketCollector(filter); |
| 300 | connection.sendPacket(reg); |
| 301 | IQ result = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout()); |
| 302 | // Stop queuing results |
| 303 | collector.cancel(); |
| 304 | if (result == null) { |
| 305 | throw new XMPPException("No response from server."); |
| 306 | } |
| 307 | else if (result.getType() == IQ.Type.ERROR) { |
| 308 | throw new XMPPException(result.getError()); |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Gets the account registration info from the server. |
| 314 | * |
| 315 | * @throws XMPPException if an error occurs. |
| 316 | */ |
| 317 | private synchronized void getRegistrationInfo() throws XMPPException { |
| 318 | Registration reg = new Registration(); |
| 319 | reg.setTo(connection.getServiceName()); |
| 320 | PacketFilter filter = new AndFilter(new PacketIDFilter(reg.getPacketID()), |
| 321 | new PacketTypeFilter(IQ.class)); |
| 322 | PacketCollector collector = connection.createPacketCollector(filter); |
| 323 | connection.sendPacket(reg); |
| 324 | IQ result = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout()); |
| 325 | // Stop queuing results |
| 326 | collector.cancel(); |
| 327 | if (result == null) { |
| 328 | throw new XMPPException("No response from server."); |
| 329 | } |
| 330 | else if (result.getType() == IQ.Type.ERROR) { |
| 331 | throw new XMPPException(result.getError()); |
| 332 | } |
| 333 | else { |
| 334 | info = (Registration)result; |
| 335 | } |
| 336 | } |
| 337 | } |