_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     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 }