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', $msg);
 138                 } else {
 139                         common_element('div', 'instructions',
 140                                                    _('If you\'ve forgotten or lost your' .
 141                                                       ' password, you can get a new one sent to' .
 142                                                       ' the email address you have stored ' .
 143                                                       ' in your account.'));
 144                 }
 145         }
 146
 147         function show_password_top($msg=NULL) {
 148                 if ($msg) {
 149             common_element('div', 'error', $msg);
 150                 } else {
 151                         common_element('div', 'instructions',
 152                                                    _('You\'ve been identified. Enter a ' .
 153                                                       ' new password below. '));
 154                 }
 155         }
 156
 157         function show_form($msg=NULL) {
 158
 159                 common_show_header(_('Recover password'), NULL,
 160                 $msg, array($this, 'show_top'));
 161
 162                 common_element_start('form', array('method' => 'post',
 163                                                                                    'id' => 'recoverpassword',
 164                                                                                    'action' => common_local_url('recoverpassword')));
 165                 common_input('nicknameoremail', _('Nickname or email'),
 166                                          $this->trimmed('nicknameoremail'),
 167                              _('Your nickname on this server, ' .
 168                                 'or your registered email address.'));
 169                 common_submit('recover', _('Recover'));
 170                 common_element_end('form');
 171                 common_show_footer();
 172         }
 173
 174         function show_password_form($msg=NULL) {
 175
 176                 common_show_header(_('Reset password'), NULL,
 177                 $msg, array($this, 'show_password_top'));
 178
 179                 common_element_start('form', array('method' => 'post',
 180                                                                                    'id' => 'recoverpassword',
 181                                                                                    'action' => common_local_url('recoverpassword')));
 182                 common_hidden('token', common_session_token());
 183                 common_password('newpassword', _('New password'),
 184                                                 _('6 or more characters, and don\'t forget it!'));
 185                 common_password('confirm', _('Confirm'),
 186                                                 _('Same as password above'));
 187                 common_submit('reset', _('Reset'));
 188                 common_element_end('form');
 189                 common_show_footer();
 190         }
 191
 192         function recover_password() {
 193                 $nore = $this->trimmed('nicknameoremail');
 194                 if (!$nore) {
 195                         $this->show_form(_('Enter a nickname or email address.'));
 196                         return;
 197                 }
 198
 199                 $user = User::staticGet('email', common_canonical_email($nore));
 200
 201                 if (!$user) {
 202                         $user = User::staticGet('nickname', common_canonical_nickname($nore));
 203                 }
 204
 205                 # See if it's an unconfirmed email address
 206
 207                 if (!$user) {
 208                         $confirm_email = Confirm_address::staticGet('address', common_canonical_email($nore));
 209                         if ($confirm_email && $confirm_email->address_type == 'email') {
 210                                 $user = User::staticGet($confirm_email->user_id);
 211                         }
 212                 }
 213
 214                 if (!$user) {
 215                         $this->show_form(_('No user with that email address or username.'));
 216                         return;
 217                 }
 218
 219                 # Try to get an unconfirmed email address if they used a user name
 220
 221                 if (!$user->email && !$confirm_email) {
 222                         $confirm_email = Confirm_address::staticGet('user_id', $user->id);
 223                         if ($confirm_email && $confirm_email->address_type != 'email') {
 224                                 # Skip non-email confirmations
 225                                 $confirm_email = NULL;
 226                         }
 227                 }
 228
 229                 if (!$user->email && !$confirm_email) {
 230                         $this->client_error(_('No registered email address for that user.'));
 231                         return;
 232                 }
 233
 234                 # Success! We have a valid user and a confirmed or unconfirmed email address
 235
 236                 $confirm = new Confirm_address();
 237                 $confirm->code = common_confirmation_code(128);
 238                 $confirm->address_type = 'recover';
 239                 $confirm->user_id = $user->id;
 240                 $confirm->address = (isset($user->email)) ? $user->email : $confirm_email->address;
 241
 242                 if (!$confirm->insert()) {
 243                         common_log_db_error($confirm, 'INSERT', __FILE__);
 244                         $this->server_error(_('Error saving address confirmation.'));
 245                         return;
 246                 }
 247
 248                 $body = "Hey, $user->nickname.";
 249                 $body .= "\n\n";
 250                 $body .= 'Someone just asked for a new password ' .
 251                          'for this account on ' . common_config('site', 'name') . '.';
 252                 $body .= "\n\n";
 253                 $body .= 'If it was you, and you want to confirm, use the URL below:';
 254                 $body .= "\n\n";
 255                 $body .= "\t".common_local_url('recoverpassword',
 256                                                                    array('code' => $confirm->code));
 257                 $body .= "\n\n";
 258                 $body .= 'If not, just ignore this message.';
 259                 $body .= "\n\n";
 260                 $body .= 'Thanks for your time, ';
 261                 $body .= "\n";
 262                 $body .= common_config('site', 'name');
 263                 $body .= "\n";
 264
 265                 mail_to_user($user, _('Password recovery requested'), $body, $confirm->address);
 266
 267                 common_show_header(_('Password recovery requested'));
 268                 common_element('p', NULL,
 269                                _('Instructions for recovering your password ' .
 270                                   'have been sent to the email address registered to your ' .
 271                                   'account.'));
 272                 common_show_footer();
 273         }
 274
 275         function reset_password() {
 276
 277                 # CSRF protection
 278                 $token = $this->trimmed('token');
 279                 if (!$token || $token != common_session_token()) {
 280                         $this->show_form(_('There was a problem with your session token. Try again, please.'));
 281                         return;
 282                 }
 283
 284                 $user = $this->get_temp_user();
 285
 286                 if (!$user) {
 287                         $this->client_error(_('Unexpected password reset.'));
 288                         return;
 289                 }
 290
 291                 $newpassword = $this->trimmed('newpassword');
 292                 $confirm = $this->trimmed('confirm');
 293
 294                 if (!$newpassword || strlen($newpassword) < 6) {
 295                         $this->show_password_form(_('Password must be 6 chars or more.'));
 296                         return;
 297                 }
 298                 if ($newpassword != $confirm) {
 299                         $this->show_password_form(_('Password and confirmation do not match.'));
 300                         return;
 301                 }
 302
 303                 # OK, we're ready to go
 304
 305                 $original = clone($user);
 306
 307                 $user->password = common_munge_password($newpassword, $user->id);
 308
 309                 if (!$user->update($original)) {
 310                         common_log_db_error($user, 'UPDATE', __FILE__);
 311                         common_server_error(_('Can\'t save new password.'));
 312                         return;
 313                 }
 314
 315                 $this->clear_temp_user();
 316
 317                 if (!common_set_user($user->nickname)) {
 318                         common_server_error(_('Error setting user.'));
 319                         return;
 320                 }
 321
 322                 common_real_login(true);
 323
 324                 common_show_header(_('Password saved.'));
 325                 common_element('p', NULL, _('New password successfully saved. ' .
 326                                              'You are now logged in.'));
 327                 common_show_footer();
 328         }
 329 }