actions/block.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 class BlockAction extends Action {
  23
  24     var $profile = NULL;
  25
  26     function prepare($args) {
  27
  28         parent::prepare($args);
  29
  30         if (!common_logged_in()) {
  31             $this->client_error(_('Not logged in.'));
  32             return false;
  33         }
  34
  35                 $token = $this->trimmed('token');
  36
  37                 if (!$token || $token != common_session_token()) {
  38                         $this->client_error(_('There was a problem with your session token. Try again, please.'));
  39                         return;
  40                 }
  41
  42         $id = $this->trimmed('blockto');
  43
  44         if (!$id) {
  45             $this->client_error(_('No profile specified.'));
  46             return false;
  47         }
  48
  49         $this->profile = Profile::staticGet('id', $id);
  50
  51         if (!$this->profile) {
  52             $this->client_error(_('No profile with that ID.'));
  53             return false;
  54         }
  55
  56         return true;
  57     }
  58
  59     function handle($args) {
  60         parent::handle($args);
  61         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
  62             if ($this->arg('block')) {
  63                 $this->are_you_sure_form();
  64             } else if ($this->arg('no')) {
  65                 $cur = common_current_user();
  66                 common_redirect(common_local_url('subscribers',
  67                                                  array('nickname' => $cur->nickname)));
  68             } else if ($this->arg('yes')) {
  69                 $this->block_profile();
  70             }
  71         }
  72     }
  73
  74     function are_you_sure_form() {
  75
  76         $id = $this->profile->id;
  77
  78                 common_show_header(_('Block user'));
  79
  80         common_element('p', NULL,
  81                        _('Are you sure you want to block this user? '.
  82                          'Afterwards, they will be unsubscribed from you, '.
  83                          'unable to subscribe to you in the future, and '.
  84                          'you will not be notified of any @-replies from them.'));
  85
  86         common_element_start('form', array('id' => 'block-' . $id,
  87                                            'method' => 'post',
  88                                            'class' => 'block',
  89                                            'action' => common_local_url('block')));
  90
  91         common_hidden('token', common_session_token());
  92
  93         common_element('input', array('id' => 'blockto-' . $id,
  94                                       'name' => 'blockto',
  95                                       'type' => 'hidden',
  96                                       'value' => $id));
  97
  98         foreach ($this->args as $k => $v) {
  99             if (substr($k, 0, 9) == 'returnto-') {
 100                 common_hidden($k, $v);
 101             }
 102         }
 103
 104         common_submit('no', _('No'));
 105         common_submit('yes', _('Yes'));
 106
 107         common_element_end('form');
 108
 109         common_show_footer();
 110     }
 111
 112     function block_profile() {
 113
 114         $cur = common_current_user();
 115
 116         if ($cur->hasBlocked($this->profile)) {
 117             $this->client_error(_('You have already blocked this user.'));
 118             return;
 119         }
 120
 121         # Add a new block record
 122
 123         $block = new Profile_block();
 124
 125         # Begin a transaction
 126
 127         $block->query('BEGIN');
 128
 129         $block->blocker = $cur->id;
 130         $block->blocked = $this->profile->id;
 131
 132         $result = $block->insert();
 133
 134         if (!$result) {
 135             common_log_db_error($block, 'INSERT', __FILE__);
 136             $this->server_error(_('Could not save new block record.'));
 137             return;
 138         }
 139
 140         # Cancel their subscription, if it exists
 141
 142                 $sub = Subscription::pkeyGet(array('subscriber' => $this->profile->id,
 143                                                                                    'subscribed' => $cur->id));
 144
 145         if ($sub) {
 146             $result = $sub->delete();
 147             if (!$result) {
 148                 common_log_db_error($sub, 'DELETE', __FILE__);
 149                 $this->server_error(_('Could not delete subscription.'));
 150                 return;
 151             }
 152         }
 153
 154         $block->query('COMMIT');
 155
 156         # Now, gotta figure where we go back to
 157
 158         foreach ($this->args as $k => $v) {
 159             if ($k == 'returnto-action') {
 160                 $action = $v;
 161             } else if (substr($k, 0, 9) == 'returnto-') {
 162                 $args[substr($k, 9)] = $v;
 163             }
 164         }
 165
 166         if ($action) {
 167             common_redirect(common_local_url($action, $args));
 168         } else {
 169             common_redirect(common_local_url('subscriptions',
 170                                              array('nickname' => $cur->nickname)));
 171         }
 172     }
 173 }