actions/recoverpassword.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 # You have 24 hours to claim your password
  23
  24 define(MAX_RECOVERY_TIME, 24 * 60 * 60);
  25
  26 class RecoverpasswordAction extends Action {
  27
  28     function handle($args) {
  29         parent::handle($args);
  30         if (common_logged_in()) {
  31                         $this->client_error(_('You are already logged in!'));
  32             return;
  33         } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
  34                 if ($this->arg('recover')) {
  35                 $this->recover_password();
  36             } else if ($this->arg('reset')) {
  37                 $this->reset_password();
  38                         } else {
  39                                 $this->client_error(_('Unexpected form submission.'));
  40                         }
  41                 } else {
  42                         if ($this->trimmed('code')) {
  43                         $this->check_code();
  44                 } else {
  45                         $this->show_form();
  46                         }
  47                 }
  48         }
  49
  50         function check_code() {
  51
  52                 $code = $this->trimmed('code');
  53                 $confirm = Confirm_address::staticGet('code', $code);
  54
  55                 if (!$confirm) {
  56                         $this->client_error(_('No such recovery code.'));
  57                         return;
  58                 }
  59                 if ($confirm->address_type != 'recover') {
  60                         $this->client_error(_('Not a recovery code.'));
  61                         return;
  62                 }
  63
  64                 $user = User::staticGet($confirm->user_id);
  65
  66                 if (!$user) {
  67                         $this->server_error(_('Recovery code for unknown user.'));
  68                         return;
  69                 }
  70
  71                 $touched = strtotime($confirm->modified);
  72                 $email = $confirm->address;
  73
  74                 # Burn this code
  75
  76                 $result = $confirm->delete();
  77
  78                 if (!$result) {
  79                         common_log_db_error($confirm, 'DELETE', __FILE__);
  80                         common_server_error(_('Error with confirmation code.'));
  81                         return;
  82                 }
  83
  84                 # These should be reaped, but for now we just check mod time
  85                 # Note: it's still deleted; let's avoid a second attempt!
  86
  87                 if ((time() - $touched) > MAX_RECOVERY_TIME) {
  88                         common_log(LOG_WARNING,
  89                                            'Attempted redemption on recovery code ' .
  90                                            'that is ' . $touched . ' seconds old. ');
  91                         $this->client_error(_('This confirmation code is too old. ' .
  92                                                'Please start again.'));
  93                         return;
  94                 }
  95
  96                 # If we used an outstanding confirmation to send the email,
  97                 # it's been confirmed at this point.
  98
  99                 if (!$user->email) {
 100                         $orig = clone($user);
 101                         $user->email = $email;
 102                         $result = $user->updateKeys($orig);
 103                         if (!$result) {
 104                                 common_log_db_error($user, 'UPDATE', __FILE__);
 105                                 $this->server_error(_('Could not update user with confirmed email address.'));
 106                                 return;
 107                         }
 108                 }
 109
 110                 # Success!
 111
 112                 $this->set_temp_user($user);
 113                 $this->show_password_form();
 114         }
 115
 116         function set_temp_user(&$user) {
 117                 common_ensure_session();
 118                 $_SESSION['tempuser'] = $user->id;
 119         }
 120
 121         function get_temp_user() {
 122                 common_ensure_session();
 123                 $user_id = $_SESSION['tempuser'];
 124                 if ($user_id) {
 125                         $user = User::staticGet($user_id);
 126                 }
 127                 return $user;
 128         }
 129
 130         function clear_temp_user() {
 131                 common_ensure_session();
 132                 unset($_SESSION['tempuser']);
 133         }
 134
 135         function show_top($msg=NULL) {
 136                 if ($msg) {
 137             common_element('div', 'error', $msg);
 138                 } else {
 139                         common_element_start('div', 'instructions');
 140                         common_element('p', NULL,
 141                                                    _('If you\'ve forgotten or lost your' .
 142                                                       ' password, you can get a new one sent to' .
 143                                                       ' the email address you have stored ' .
 144                                                       ' in your account.'));
 145                         common_element_end('div');
 146                 }
 147         }
 148
 149         function show_password_top($msg=NULL) {
 150                 if ($msg) {
 151             common_element('div', 'error', $msg);
 152                 } else {
 153                         common_element('div', 'instructions',
 154                                                    _('You\'ve been identified. Enter a ' .
 155                                                       ' new password below. '));
 156                 }
 157         }
 158
 159         function show_form($msg=NULL) {
 160
 161                 common_show_header(_('Recover password'), NULL,
 162                 $msg, array($this, 'show_top'));
 163
 164                 common_element_start('form', array('method' => 'post',
 165                                                                                    'id' => 'recoverpassword',
 166                                                                                    'action' => common_local_url('recoverpassword')));
 167                 common_input('nicknameoremail', _('Nickname or email'),
 168                                          $this->trimmed('nicknameoremail'),
 169                              _('Your nickname on this server, ' .
 170                                 'or your registered email address.'));
 171                 common_submit('recover', _('Recover'));
 172                 common_element_end('form');
 173                 common_show_footer();
 174         }
 175
 176         function show_password_form($msg=NULL) {
 177
 178                 common_show_header(_('Reset password'), NULL,
 179                 $msg, array($this, 'show_password_top'));
 180
 181                 common_element_start('form', array('method' => 'post',
 182                                                                                    'id' => 'recoverpassword',
 183                                                                                    'action' => common_local_url('recoverpassword')));
 184                 common_hidden('token', common_session_token());
 185                 common_password('newpassword', _('New password'),
 186                                                 _('6 or more characters, and don\'t forget it!'));
 187                 common_password('confirm', _('Confirm'),
 188                                                 _('Same as password above'));
 189                 common_submit('reset', _('Reset'));
 190                 common_element_end('form');
 191                 common_show_footer();
 192         }
 193
 194         function recover_password() {
 195                 $nore = $this->trimmed('nicknameoremail');
 196                 if (!$nore) {
 197                         $this->show_form(_('Enter a nickname or email address.'));
 198                         return;
 199                 }
 200
 201                 $user = User::staticGet('email', common_canonical_email($nore));
 202
 203                 if (!$user) {
 204                         $user = User::staticGet('nickname', common_canonical_nickname($nore));
 205                 }
 206
 207                 # See if it's an unconfirmed email address
 208
 209                 if (!$user) {
 210                         $confirm_email = Confirm_address::staticGet('address', common_canonical_email($nore));
 211                         if ($confirm_email && $confirm_email->address_type == 'email') {
 212                                 $user = User::staticGet($confirm_email->user_id);
 213                         }
 214                 }
 215
 216                 if (!$user) {
 217                         $this->show_form(_('No user with that email address or username.'));
 218                         return;
 219                 }
 220
 221                 # Try to get an unconfirmed email address if they used a user name
 222
 223                 if (!$user->email && !$confirm_email) {
 224                         $confirm_email = Confirm_address::staticGet('user_id', $user->id);
 225                         if ($confirm_email && $confirm_email->address_type != 'email') {
 226                                 # Skip non-email confirmations
 227                                 $confirm_email = NULL;
 228                         }
 229                 }
 230
 231                 if (!$user->email && !$confirm_email) {
 232                         $this->client_error(_('No registered email address for that user.'));
 233                         return;
 234                 }
 235
 236                 # Success! We have a valid user and a confirmed or unconfirmed email address
 237
 238                 $confirm = new Confirm_address();
 239                 $confirm->code = common_confirmation_code(128);
 240                 $confirm->address_type = 'recover';
 241                 $confirm->user_id = $user->id;
 242                 $confirm->address = (isset($user->email)) ? $user->email : $confirm_email->address;
 243
 244                 if (!$confirm->insert()) {
 245                         common_log_db_error($confirm, 'INSERT', __FILE__);
 246                         $this->server_error(_('Error saving address confirmation.'));
 247                         return;
 248                 }
 249
 250                 $body = "Hey, $user->nickname.";
 251                 $body .= "\n\n";
 252                 $body .= 'Someone just asked for a new password ' .
 253                          'for this account on ' . common_config('site', 'name') . '.';
 254                 $body .= "\n\n";
 255                 $body .= 'If it was you, and you want to confirm, use the URL below:';
 256                 $body .= "\n\n";
 257                 $body .= "\t".common_local_url('recoverpassword',
 258                                                                    array('code' => $confirm->code));
 259                 $body .= "\n\n";
 260                 $body .= 'If not, just ignore this message.';
 261                 $body .= "\n\n";
 262                 $body .= 'Thanks for your time, ';
 263                 $body .= "\n";
 264                 $body .= common_config('site', 'name');
 265                 $body .= "\n";
 266
 267                 mail_to_user($user, _('Password recovery requested'), $body, $confirm->address);
 268
 269                 common_show_header(_('Password recovery requested'));
 270                 common_element('p', NULL,
 271                                _('Instructions for recovering your password ' .
 272                                   'have been sent to the email address registered to your ' .
 273                                   'account.'));
 274                 common_show_footer();
 275         }
 276
 277         function reset_password() {
 278
 279                 # CSRF protection
 280                 $token = $this->trimmed('token');
 281                 if (!$token || $token != common_session_token()) {
 282                         $this->show_form(_('There was a problem with your session token. Try again, please.'));
 283                         return;
 284                 }
 285
 286                 $user = $this->get_temp_user();
 287
 288                 if (!$user) {
 289                         $this->client_error(_('Unexpected password reset.'));
 290                         return;
 291                 }
 292
 293                 $newpassword = $this->trimmed('newpassword');
 294                 $confirm = $this->trimmed('confirm');
 295
 296                 if (!$newpassword || strlen($newpassword) < 6) {
 297                         $this->show_password_form(_('Password must be 6 chars or more.'));
 298                         return;
 299                 }
 300                 if ($newpassword != $confirm) {
 301                         $this->show_password_form(_('Password and confirmation do not match.'));
 302                         return;
 303                 }
 304
 305                 # OK, we're ready to go
 306
 307                 $original = clone($user);
 308
 309                 $user->password = common_munge_password($newpassword, $user->id);
 310
 311                 if (!$user->update($original)) {
 312                         common_log_db_error($user, 'UPDATE', __FILE__);
 313                         common_server_error(_('Can\'t save new password.'));
 314                         return;
 315                 }
 316
 317                 $this->clear_temp_user();
 318
 319                 if (!common_set_user($user->nickname)) {
 320                         common_server_error(_('Error setting user.'));
 321                         return;
 322                 }
 323
 324                 common_real_login(true);
 325
 326                 common_show_header(_('Password saved.'));
 327                 common_element('p', NULL, _('New password successfully saved. ' .
 328                                              'You are now logged in.'));
 329                 common_show_footer();
 330         }
 331 }