_darcs/pristine/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
  29     function handle($args)
  30     {
  31         parent::handle($args);
  32         if (common_logged_in()) {
  33             $this->client_error(_('You are already logged in!'));
  34             return;
  35         } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
  36             if ($this->arg('recover')) {
  37                 $this->recover_password();
  38             } else if ($this->arg('reset')) {
  39                 $this->reset_password();
  40             } else {
  41                 $this->client_error(_('Unexpected form submission.'));
  42             }
  43         } else {
  44             if ($this->trimmed('code')) {
  45                 $this->check_code();
  46             } else {
  47                 $this->show_form();
  48             }
  49         }
  50     }
  51
  52     function check_code()
  53     {
  54
  55         $code = $this->trimmed('code');
  56         $confirm = Confirm_address::staticGet('code', $code);
  57
  58         if (!$confirm) {
  59             $this->client_error(_('No such recovery code.'));
  60             return;
  61         }
  62         if ($confirm->address_type != 'recover') {
  63             $this->client_error(_('Not a recovery code.'));
  64             return;
  65         }
  66
  67         $user = User::staticGet($confirm->user_id);
  68
  69         if (!$user) {
  70             $this->server_error(_('Recovery code for unknown user.'));
  71             return;
  72         }
  73
  74         $touched = strtotime($confirm->modified);
  75         $email = $confirm->address;
  76
  77         # Burn this code
  78
  79         $result = $confirm->delete();
  80
  81         if (!$result) {
  82             common_log_db_error($confirm, 'DELETE', __FILE__);
  83             common_server_error(_('Error with confirmation code.'));
  84             return;
  85         }
  86
  87         # These should be reaped, but for now we just check mod time
  88         # Note: it's still deleted; let's avoid a second attempt!
  89
  90         if ((time() - $touched) > MAX_RECOVERY_TIME) {
  91             common_log(LOG_WARNING,
  92                        'Attempted redemption on recovery code ' .
  93                        'that is ' . $touched . ' seconds old. ');
  94             $this->client_error(_('This confirmation code is too old. ' .
  95                                    'Please start again.'));
  96             return;
  97         }
  98
  99         # If we used an outstanding confirmation to send the email,
 100         # it's been confirmed at this point.
 101
 102         if (!$user->email) {
 103             $orig = clone($user);
 104             $user->email = $email;
 105             $result = $user->updateKeys($orig);
 106             if (!$result) {
 107                 common_log_db_error($user, 'UPDATE', __FILE__);
 108                 $this->server_error(_('Could not update user with confirmed email address.'));
 109                 return;
 110             }
 111         }
 112
 113         # Success!
 114
 115         $this->set_temp_user($user);
 116         $this->show_password_form();
 117     }
 118
 119     function set_temp_user(&$user)
 120     {
 121         common_ensure_session();
 122         $_SESSION['tempuser'] = $user->id;
 123     }
 124
 125     function get_temp_user()
 126     {
 127         common_ensure_session();
 128         $user_id = $_SESSION['tempuser'];
 129         if ($user_id) {
 130             $user = User::staticGet($user_id);
 131         }
 132         return $user;
 133     }
 134
 135     function clear_temp_user()
 136     {
 137         common_ensure_session();
 138         unset($_SESSION['tempuser']);
 139     }
 140
 141     function show_top($msg=null)
 142     {
 143         if ($msg) {
 144             common_element('div', 'error', $msg);
 145         } else {
 146             common_element_start('div', 'instructions');
 147             common_element('p', null,
 148                            _('If you\'ve forgotten or lost your' .
 149                               ' password, you can get a new one sent to' .
 150                               ' the email address you have stored ' .
 151                               ' in your account.'));
 152             common_element_end('div');
 153         }
 154     }
 155
 156     function show_password_top($msg=null)
 157     {
 158         if ($msg) {
 159             common_element('div', 'error', $msg);
 160         } else {
 161             common_element('div', 'instructions',
 162                            _('You\'ve been identified. Enter a ' .
 163                               ' new password below. '));
 164         }
 165     }
 166
 167     function show_form($msg=null)
 168     {
 169
 170         common_show_header(_('Recover password'), null,
 171         $msg, array($this, 'show_top'));
 172
 173         common_element_start('form', array('method' => 'post',
 174                                            'id' => 'recoverpassword',
 175                                            'action' => common_local_url('recoverpassword')));
 176         common_input('nicknameoremail', _('Nickname or email'),
 177                      $this->trimmed('nicknameoremail'),
 178                      _('Your nickname on this server, ' .
 179                         'or your registered email address.'));
 180         common_submit('recover', _('Recover'));
 181         common_element_end('form');
 182         common_show_footer();
 183     }
 184
 185     function show_password_form($msg=null)
 186     {
 187
 188         common_show_header(_('Reset password'), null,
 189         $msg, array($this, 'show_password_top'));
 190
 191         common_element_start('form', array('method' => 'post',
 192                                            'id' => 'recoverpassword',
 193                                            'action' => common_local_url('recoverpassword')));
 194         common_hidden('token', common_session_token());
 195         common_password('newpassword', _('New password'),
 196                         _('6 or more characters, and don\'t forget it!'));
 197         common_password('confirm', _('Confirm'),
 198                         _('Same as password above'));
 199         common_submit('reset', _('Reset'));
 200         common_element_end('form');
 201         common_show_footer();
 202     }
 203
 204     function recover_password()
 205     {
 206         $nore = $this->trimmed('nicknameoremail');
 207         if (!$nore) {
 208             $this->show_form(_('Enter a nickname or email address.'));
 209             return;
 210         }
 211
 212         $user = User::staticGet('email', common_canonical_email($nore));
 213
 214         if (!$user) {
 215             $user = User::staticGet('nickname', common_canonical_nickname($nore));
 216         }
 217
 218         # See if it's an unconfirmed email address
 219
 220         if (!$user) {
 221             $confirm_email = Confirm_address::staticGet('address', common_canonical_email($nore));
 222             if ($confirm_email && $confirm_email->address_type == 'email') {
 223                 $user = User::staticGet($confirm_email->user_id);
 224             }
 225         }
 226
 227         if (!$user) {
 228             $this->show_form(_('No user with that email address or username.'));
 229             return;
 230         }
 231
 232         # Try to get an unconfirmed email address if they used a user name
 233
 234         if (!$user->email && !$confirm_email) {
 235             $confirm_email = Confirm_address::staticGet('user_id', $user->id);
 236             if ($confirm_email && $confirm_email->address_type != 'email') {
 237                 # Skip non-email confirmations
 238                 $confirm_email = null;
 239             }
 240         }
 241
 242         if (!$user->email && !$confirm_email) {
 243             $this->client_error(_('No registered email address for that user.'));
 244             return;
 245         }
 246
 247         # Success! We have a valid user and a confirmed or unconfirmed email address
 248
 249         $confirm = new Confirm_address();
 250         $confirm->code = common_confirmation_code(128);
 251         $confirm->address_type = 'recover';
 252         $confirm->user_id = $user->id;
 253         $confirm->address = (isset($user->email)) ? $user->email : $confirm_email->address;
 254
 255         if (!$confirm->insert()) {
 256             common_log_db_error($confirm, 'INSERT', __FILE__);
 257             $this->server_error(_('Error saving address confirmation.'));
 258             return;
 259         }
 260
 261         $body = "Hey, $user->nickname.";
 262         $body .= "\n\n";
 263         $body .= 'Someone just asked for a new password ' .
 264                  'for this account on ' . common_config('site', 'name') . '.';
 265         $body .= "\n\n";
 266         $body .= 'If it was you, and you want to confirm, use the URL below:';
 267         $body .= "\n\n";
 268         $body .= "\t".common_local_url('recoverpassword',
 269                                    array('code' => $confirm->code));
 270         $body .= "\n\n";
 271         $body .= 'If not, just ignore this message.';
 272         $body .= "\n\n";
 273         $body .= 'Thanks for your time, ';
 274         $body .= "\n";
 275         $body .= common_config('site', 'name');
 276         $body .= "\n";
 277
 278         mail_to_user($user, _('Password recovery requested'), $body, $confirm->address);
 279
 280         common_show_header(_('Password recovery requested'));
 281         common_element('p', null,
 282                        _('Instructions for recovering your password ' .
 283                           'have been sent to the email address registered to your ' .
 284                           'account.'));
 285         common_show_footer();
 286     }
 287
 288     function reset_password()
 289     {
 290
 291         # CSRF protection
 292         $token = $this->trimmed('token');
 293         if (!$token || $token != common_session_token()) {
 294             $this->show_form(_('There was a problem with your session token. Try again, please.'));
 295             return;
 296         }
 297
 298         $user = $this->get_temp_user();
 299
 300         if (!$user) {
 301             $this->client_error(_('Unexpected password reset.'));
 302             return;
 303         }
 304
 305         $newpassword = $this->trimmed('newpassword');
 306         $confirm = $this->trimmed('confirm');
 307
 308         if (!$newpassword || strlen($newpassword) < 6) {
 309             $this->show_password_form(_('Password must be 6 chars or more.'));
 310             return;
 311         }
 312         if ($newpassword != $confirm) {
 313             $this->show_password_form(_('Password and confirmation do not match.'));
 314             return;
 315         }
 316
 317         # OK, we're ready to go
 318
 319         $original = clone($user);
 320
 321         $user->password = common_munge_password($newpassword, $user->id);
 322
 323         if (!$user->update($original)) {
 324             common_log_db_error($user, 'UPDATE', __FILE__);
 325             common_server_error(_('Can\'t save new password.'));
 326             return;
 327         }
 328
 329         $this->clear_temp_user();
 330
 331         if (!common_set_user($user->nickname)) {
 332             common_server_error(_('Error setting user.'));
 333             return;
 334         }
 335
 336         common_real_login(true);
 337
 338         common_show_header(_('Password saved.'));
 339         common_element('p', null, _('New password successfully saved. ' .
 340                                      'You are now logged in.'));
 341         common_show_footer();
 342     }
 343 }