lib/gallery.php

   1 <?php
   2
   3 /*
   4  * Laconica - a distributed open-source microblogging tool
   5  * Copyright (C) 2008, Controlez-Vous, Inc.
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 if (!defined('LACONICA')) { exit(1); }
  22
  23 require_once(INSTALLDIR.'/lib/profilelist.php');
  24
  25 # 10x8
  26
  27 define('AVATARS_PER_PAGE', 80);
  28
  29 class GalleryAction extends Action {
  30
  31         function is_readonly() {
  32                 return true;
  33         }
  34
  35         function handle($args) {
  36                 parent::handle($args);
  37
  38                 # Post from the tag dropdown; redirect to a GET
  39
  40                 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
  41                     common_redirect($this->self_url(), 307);
  42                 }
  43
  44                 $nickname = common_canonical_nickname($this->arg('nickname'));
  45                 $user = User::staticGet('nickname', $nickname);
  46
  47                 if (!$user) {
  48                         $this->no_such_user();
  49                         return;
  50                 }
  51
  52                 $profile = $user->getProfile();
  53
  54                 if (!$profile) {
  55                         $this->server_error(_('User without matching profile in system.'));
  56                         return;
  57                 }
  58
  59                 $page = $this->arg('page');
  60
  61                 if (!$page) {
  62                         $page = 1;
  63                 }
  64
  65                 $display = $this->arg('display');
  66
  67                 if (!$display) {
  68                         $display = 'list';
  69                 }
  70
  71                 $tag = $this->arg('tag');
  72
  73                 common_show_header($profile->nickname . ": " . $this->gallery_type(),
  74                                                    NULL, $profile,
  75                                                    array($this, 'show_top'));
  76
  77                 $this->display_links($profile, $page, $display);
  78                 $this->show_tags_dropdown($profile);
  79
  80                 $this->show_gallery($profile, $page, $display, $tag);
  81                 common_show_footer();
  82         }
  83
  84         function no_such_user() {
  85                 $this->client_error(_('No such user.'));
  86         }
  87
  88         function show_tags_dropdown($profile) {
  89                 $tag = $this->trimmed('tag');
  90                 list($lst, $usr) = $this->fields();
  91                 $tags = $this->get_all_tags($profile, $lst, $usr);
  92                 $content = array();
  93                 foreach ($tags as $t) {
  94                         $content[$t] = $t;
  95                 }
  96                 if ($tags) {
  97                         common_element_start('dl', array('id'=>'filter_tags'));
  98                         common_element('dt', null, _('Filter tags'));
  99                         common_element_start('dd');
 100                         common_element_start('ul');
 101                         common_element_start('li', array('id'=>'filter_tags_all', 'class'=>'child_1'));
 102                         common_element('a', array('href' => common_local_url($this->trimmed('action'),
 103                                                                                                                                  array('nickname' => $profile->nickname))),
 104                                                    _('All'));
 105                         common_element_end('li');
 106                         common_element_start('li', array('id'=>'filter_tags_item'));
 107                         common_element_start('form', array('name' => 'bytag', 'id' => 'bytag', 'method' => 'post'));
 108                         common_dropdown('tag', _('Tag'), $content,
 109                                                         _('Choose a tag to narrow list'), FALSE, $tag);
 110                         common_submit('go', _('Go'));
 111                         common_element_end('form');
 112                         common_element_end('li');
 113                         common_element_end('ul');
 114                         common_element_end('dd');
 115                         common_element_end('dl');
 116                 }
 117         }
 118
 119         function show_top($profile) {
 120                 common_element('div', 'instructions',
 121                                            $this->get_instructions($profile));
 122         }
 123
 124         function show_gallery($profile, $page, $display='list', $tag=NULL) {
 125
 126                 $other = new Profile();
 127
 128                 list($lst, $usr) = $this->fields();
 129
 130                 $per_page = ($display == 'list') ? PROFILES_PER_PAGE : AVATARS_PER_PAGE;
 131
 132                 $offset = ($page-1)*$per_page;
 133                 $limit = $per_page + 1;
 134
 135                 if (common_config('db','type') == 'pgsql') {
 136                         $lim = ' LIMIT ' . $limit . ' OFFSET ' . $offset;
 137                 } else {
 138                         $lim = ' LIMIT ' . $offset . ', ' . $limit;
 139                 }
 140
 141                 # XXX: memcached results
 142                 # FIXME: SQL injection on $tag
 143
 144                 $other->query('SELECT profile.* ' .
 145                                           'FROM profile JOIN subscription ' .
 146                                           'ON profile.id = subscription.' . $lst . ' ' .
 147                                           (($tag) ? 'JOIN profile_tag ON (profile.id = profile_tag.tagged AND subscription.'.$usr.'= profile_tag.tagger) ' : '') .
 148                                           'WHERE ' . $usr . ' = ' . $profile->id . ' ' .
 149                                           'AND subscriber != subscribed ' .
 150                                           (($tag) ? 'AND profile_tag.tag= "' . $tag . '" ': '') .
 151                                           'ORDER BY subscription.created DESC, profile.id DESC ' .
 152                                           $lim);
 153
 154                 if ($display == 'list') {
 155                         $profile_list = new ProfileList($other, $profile, $this->trimmed('action'));
 156                         $cnt = $profile_list->show_list();
 157                 } else {
 158                         $cnt = $this->icon_list($other);
 159                 }
 160
 161                 # For building the pagination URLs
 162
 163                 $args = array('nickname' => $profile->nickname);
 164
 165                 if ($display != 'list') {
 166                         $args['display'] = $display;
 167                 }
 168
 169                 common_pagination($page > 1,
 170                                                   $cnt > $per_page,
 171                                                   $page,
 172                                                   $this->trimmed('action'),
 173                                                   $args);
 174         }
 175
 176         function icon_list($other) {
 177
 178                 common_element_start('ul', $this->div_class());
 179
 180                 $cnt = 0;
 181
 182                 while ($other->fetch()) {
 183
 184                         $cnt++;
 185
 186                         if ($cnt > AVATARS_PER_PAGE) {
 187                                 break;
 188                         }
 189
 190                         common_element_start('li');
 191
 192                         common_element_start('a', array('title' => ($other->fullname) ?
 193                                                                                         $other->fullname :
 194                                                                                         $other->nickname,
 195                                                                                         'href' => $other->profileurl,
 196                                                                                         'class' => 'subscription'));
 197                         $avatar = $other->getAvatar(AVATAR_STREAM_SIZE);
 198                         common_element('img',
 199                                                    array('src' =>
 200                                                                  (($avatar) ? common_avatar_display_url($avatar) :
 201                                                                   common_default_avatar(AVATAR_STREAM_SIZE)),
 202                                                                  'width' => AVATAR_STREAM_SIZE,
 203                                                                  'height' => AVATAR_STREAM_SIZE,
 204                                                                  'class' => 'avatar stream',
 205                                                                  'alt' => ($other->fullname) ?
 206                                                                  $other->fullname :
 207                                                                  $other->nickname));
 208                         common_element_end('a');
 209
 210                         # XXX: subscribe form here
 211
 212                         common_element_end('li');
 213                 }
 214
 215                 common_element_end('ul');
 216
 217                 return $cnt;
 218         }
 219
 220         function gallery_type() {
 221                 return NULL;
 222         }
 223
 224         function get_instructions(&$profile) {
 225                 return NULL;
 226         }
 227
 228         function fields() {
 229                 return NULL;
 230         }
 231
 232         function div_class() {
 233                 return '';
 234         }
 235
 236         function display_links($profile, $page, $display) {
 237                 $tag = $this->trimmed('tag');
 238
 239                 common_element_start('dl', array('id'=>'subscriptions_nav'));
 240                 common_element('dt', null, _('Subscriptions navigation'));
 241                 common_element_start('dd');
 242                 common_element_start('ul', array('class'=>'nav'));
 243
 244                 switch ($display) {
 245                  case 'list':
 246                         common_element('li', array('class'=>'child_1'), _('List'));
 247                         common_element_start('li');
 248                         $url_args = array('display' => 'icons',
 249                                                           'nickname' => $profile->nickname,
 250                                                           'page' => 1 + floor((($page - 1) * PROFILES_PER_PAGE) / AVATARS_PER_PAGE));
 251                         if ($tag) {
 252                                 $url_args['tag'] = $tag;
 253                         }
 254                         $url = common_local_url($this->trimmed('action'), $url_args);
 255                         common_element('a', array('href' => $url),
 256                                                    _('Icons'));
 257                         common_element_end('li');
 258                         break;
 259                  default:
 260                         common_element_start('li', array('class'=>'child_1'));
 261                         $url_args = array('nickname' => $profile->nickname,
 262                                                           'page' => 1 + floor((($page - 1) * AVATARS_PER_PAGE) / PROFILES_PER_PAGE));
 263                         if ($tag) {
 264                                 $url_args['tag'] = $tag;
 265                         }
 266                         $url = common_local_url($this->trimmed('action'), $url_args);
 267                         common_element('a', array('href' => $url),
 268                                                    _('List'));
 269                         common_element_end('li');
 270                         common_element('li', NULL, _('Icons'));
 271                         break;
 272                 }
 273
 274                 common_element_end('ul');
 275                 common_element_end('dd');
 276                 common_element_end('dl');
 277         }
 278
 279         # Get list of tags we tagged other users with
 280
 281         function get_all_tags($profile, $lst, $usr) {
 282                 $profile_tag = new Notice_tag();
 283                 $profile_tag->query('SELECT DISTINCT(tag) ' .
 284                                                         'FROM profile_tag, subscription ' .
 285                                                         'WHERE tagger = ' . $profile->id . ' ' .
 286                                                         'AND ' . $usr . ' = ' . $profile->id . ' ' .
 287                                                         'AND ' . $lst . ' = tagged ' .
 288                                                         'AND tagger != tagged');
 289                 $tags = array();
 290                 while ($profile_tag->fetch()) {
 291                         $tags[] = $profile_tag->tag;
 292                 }
 293                 $profile_tag->free();
 294                 return $tags;
 295         }
 296 }