actions/grouplogo.php

   1 <?php
   2 /**
   3  * Laconica, the distributed open-source microblogging tool
   4  *
   5  * Upload an avatar
   6  *
   7  * PHP version 5
   8  *
   9  * LICENCE: This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU Affero General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Affero General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Affero General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  * @category  Settings
  23  * @package   Laconica
  24  * @author    Evan Prodromou <evan@controlyourself.ca>
  25  * @author    Zach Copley <zach@controlyourself.ca>
  26  * @copyright 2008-2009 Control Yourself, Inc.
  27  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  28  * @link      http://laconi.ca/
  29  */
  30
  31 if (!defined('LACONICA')) {
  32     exit(1);
  33 }
  34
  35 require_once INSTALLDIR.'/lib/accountsettingsaction.php';
  36
  37 define('MAX_ORIGINAL', 480);
  38
  39 /**
  40  * Upload an avatar
  41  *
  42  * We use jCrop plugin for jQuery to crop the image after upload.
  43  *
  44  * @category Settings
  45  * @package  Laconica
  46  * @author   Evan Prodromou <evan@controlyourself.ca>
  47  * @author   Zach Copley <zach@controlyourself.ca>
  48  * @author   Sarven Capadisli <csarven@controlyourself.ca>
  49  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  50  * @link     http://laconi.ca/
  51  */
  52
  53 class GrouplogoAction extends GroupDesignAction
  54 {
  55     var $mode = null;
  56     var $imagefile = null;
  57     var $filename = null;
  58     var $msg = null;
  59     var $success = null;
  60
  61     /**
  62      * Prepare to run
  63      */
  64
  65     function prepare($args)
  66     {
  67         parent::prepare($args);
  68
  69         if (!common_config('inboxes','enabled')) {
  70             $this->serverError(_('Inboxes must be enabled for groups to work'));
  71             return false;
  72         }
  73
  74         if (!common_logged_in()) {
  75             $this->clientError(_('You must be logged in to create a group.'));
  76             return false;
  77         }
  78
  79         $nickname_arg = $this->trimmed('nickname');
  80         $nickname = common_canonical_nickname($nickname_arg);
  81
  82         // Permanent redirect on non-canonical nickname
  83
  84         if ($nickname_arg != $nickname) {
  85             $args = array('nickname' => $nickname);
  86             common_redirect(common_local_url('grouplogo', $args), 301);
  87             return false;
  88         }
  89
  90         if (!$nickname) {
  91             $this->clientError(_('No nickname'), 404);
  92             return false;
  93         }
  94
  95         $groupid = $this->trimmed('groupid');
  96
  97         if ($groupid) {
  98             $this->group = User_group::staticGet('id', $groupid);
  99         } else {
 100             $this->group = User_group::staticGet('nickname', $nickname);
 101         }
 102
 103         if (!$this->group) {
 104             $this->clientError(_('No such group'), 404);
 105             return false;
 106         }
 107
 108         $cur = common_current_user();
 109
 110         if (!$cur->isAdmin($this->group)) {
 111             $this->clientError(_('You must be an admin to edit the group'), 403);
 112             return false;
 113         }
 114
 115         return true;
 116     }
 117
 118     function handle($args)
 119     {
 120         parent::handle($args);
 121         if ($_SERVER['REQUEST_METHOD'] == 'POST') {
 122             $this->handlePost();
 123         } else {
 124             $this->showForm();
 125         }
 126     }
 127
 128     function showForm($msg = null, $success = false)
 129     {
 130         $this->msg     = $msg;
 131         $this->success = $success;
 132
 133         $this->showPage();
 134     }
 135
 136     /**
 137      * Title of the page
 138      *
 139      * @return string Title of the page
 140      */
 141
 142     function title()
 143     {
 144         return _('Group logo');
 145     }
 146
 147     /**
 148      * Instructions for use
 149      *
 150      * @return instructions for use
 151      */
 152
 153     function getInstructions()
 154     {
 155         return sprintf(_('You can upload a logo image for your group. The maximum file size is %s.'), ImageFile::maxFileSize());
 156     }
 157
 158     /**
 159      * Content area of the page
 160      *
 161      * Shows a form for uploading an avatar.
 162      *
 163      * @return void
 164      */
 165
 166     function showContent()
 167     {
 168         if ($this->mode == 'crop') {
 169             $this->showCropForm();
 170         } else {
 171             $this->showUploadForm();
 172         }
 173     }
 174
 175     function showUploadForm()
 176     {
 177         $user = common_current_user();
 178
 179         $profile = $user->getProfile();
 180
 181         if (!$profile) {
 182             common_log_db_error($user, 'SELECT', __FILE__);
 183             $this->serverError(_('User without matching profile'));
 184             return;
 185         }
 186
 187         $original = $this->group->original_logo;
 188
 189         $this->elementStart('form', array('enctype' => 'multipart/form-data',
 190                                           'method' => 'post',
 191                                           'id' => 'form_settings_avatar',
 192                                           'class' => 'form_settings',
 193                                           'action' =>
 194                                           common_local_url('grouplogo',
 195                                                            array('nickname' => $this->group->nickname))));
 196         $this->elementStart('fieldset');
 197         $this->element('legend', null, _('Group logo'));
 198         $this->hidden('token', common_session_token());
 199
 200         $this->elementStart('ul', 'form_data');
 201         if ($original) {
 202             $this->elementStart('li', array('id' => 'avatar_original',
 203                                             'class' => 'avatar_view'));
 204             $this->element('h2', null, _("Original"));
 205             $this->elementStart('div', array('id'=>'avatar_original_view'));
 206             $this->element('img', array('src' => $this->group->original_logo,
 207                                         'alt' => $this->group->nickname));
 208             $this->elementEnd('div');
 209             $this->elementEnd('li');
 210         }
 211
 212         if ($this->group->homepage_logo) {
 213             $this->elementStart('li', array('id' => 'avatar_preview',
 214                                             'class' => 'avatar_view'));
 215             $this->element('h2', null, _("Preview"));
 216             $this->elementStart('div', array('id'=>'avatar_preview_view'));
 217             $this->element('img', array('src' => $this->group->homepage_logo,
 218                                         'width' => AVATAR_PROFILE_SIZE,
 219                                         'height' => AVATAR_PROFILE_SIZE,
 220                                         'alt' => $this->group->nickname));
 221             $this->elementEnd('div');
 222             $this->elementEnd('li');
 223         }
 224
 225         $this->elementStart('li', array ('id' => 'settings_attach'));
 226         $this->element('input', array('name' => 'avatarfile',
 227                                       'type' => 'file',
 228                                       'id' => 'avatarfile'));
 229         $this->element('input', array('name' => 'MAX_FILE_SIZE',
 230                                       'type' => 'hidden',
 231                                       'id' => 'MAX_FILE_SIZE',
 232                                       'value' => ImageFile::maxFileSizeInt()));
 233         $this->elementEnd('li');
 234         $this->elementEnd('ul');
 235
 236         $this->elementStart('ul', 'form_actions');
 237         $this->elementStart('li');
 238         $this->submit('upload', _('Upload'));
 239         $this->elementEnd('li');
 240         $this->elementEnd('ul');
 241
 242         $this->elementEnd('fieldset');
 243         $this->elementEnd('form');
 244
 245     }
 246
 247     function showCropForm()
 248     {
 249         $this->elementStart('form', array('method' => 'post',
 250                                           'id' => 'form_settings_avatar',
 251                                           'class' => 'form_settings',
 252                                           'action' =>
 253                                           common_local_url('grouplogo',
 254                                                            array('nickname' => $this->group->nickname))));
 255         $this->elementStart('fieldset');
 256         $this->element('legend', null, _('Avatar settings'));
 257         $this->hidden('token', common_session_token());
 258
 259         $this->elementStart('ul', 'form_data');
 260
 261         $this->elementStart('li',
 262                             array('id' => 'avatar_original',
 263                                   'class' => 'avatar_view'));
 264         $this->element('h2', null, _("Original"));
 265         $this->elementStart('div', array('id'=>'avatar_original_view'));
 266         $this->element('img', array('src' => Avatar::url($this->filedata['filename']),
 267                                     'width' => $this->filedata['width'],
 268                                     'height' => $this->filedata['height'],
 269                                     'alt' => $this->group->nickname));
 270         $this->elementEnd('div');
 271         $this->elementEnd('li');
 272
 273         $this->elementStart('li',
 274                             array('id' => 'avatar_preview',
 275                                   'class' => 'avatar_view'));
 276         $this->element('h2', null, _("Preview"));
 277         $this->elementStart('div', array('id'=>'avatar_preview_view'));
 278         $this->element('img', array('src' => Avatar::url($this->filedata['filename']),
 279                                     'width' => AVATAR_PROFILE_SIZE,
 280                                     'height' => AVATAR_PROFILE_SIZE,
 281                                     'alt' => $this->group->nickname));
 282         $this->elementEnd('div');
 283
 284         foreach (array('avatar_crop_x', 'avatar_crop_y',
 285                        'avatar_crop_w', 'avatar_crop_h') as $crop_info) {
 286             $this->element('input', array('name' => $crop_info,
 287                                           'type' => 'hidden',
 288                                           'id' => $crop_info));
 289         }
 290
 291         $this->submit('crop', _('Crop'));
 292
 293         $this->elementEnd('li');
 294         $this->elementEnd('ul');
 295         $this->elementEnd('fieldset');
 296         $this->elementEnd('form');
 297
 298     }
 299
 300     /**
 301      * Handle a post
 302      *
 303      * We mux on the button name to figure out what the user actually wanted.
 304      *
 305      * @return void
 306      */
 307
 308     function handlePost()
 309     {
 310         // CSRF protection
 311
 312         $token = $this->trimmed('token');
 313         if (!$token || $token != common_session_token()) {
 314             $this->show_form(_('There was a problem with your session token. '.
 315                                'Try again, please.'));
 316             return;
 317         }
 318
 319         if ($this->arg('upload')) {
 320             $this->uploadLogo();
 321         } else if ($this->arg('crop')) {
 322             $this->cropLogo();
 323         } else {
 324             $this->showForm(_('Unexpected form submission.'));
 325         }
 326     }
 327
 328     /**
 329      * Handle an image upload
 330      *
 331      * Does all the magic for handling an image upload, and crops the
 332      * image by default.
 333      *
 334      * @return void
 335      */
 336
 337     function uploadLogo()
 338     {
 339         try {
 340             $imagefile = ImageFile::fromUpload('avatarfile');
 341         } catch (Exception $e) {
 342             $this->showForm($e->getMessage());
 343             return;
 344         }
 345
 346         $filename = Avatar::filename($this->group->id,
 347                                      image_type_to_extension($imagefile->type),
 348                                      null,
 349                                      'group-temp-'.common_timestamp());
 350
 351         $filepath = Avatar::path($filename);
 352
 353         move_uploaded_file($imagefile->filepath, $filepath);
 354
 355         $filedata = array('filename' => $filename,
 356                           'filepath' => $filepath,
 357                           'width' => $imagefile->width,
 358                           'height' => $imagefile->height,
 359                           'type' => $imagefile->type);
 360
 361         $_SESSION['FILEDATA'] = $filedata;
 362
 363         $this->filedata = $filedata;
 364
 365         $this->mode = 'crop';
 366
 367         $this->showForm(_('Pick a square area of the image to be the logo.'),
 368                         true);
 369     }
 370
 371     /**
 372      * Handle the results of jcrop.
 373      *
 374      * @return void
 375      */
 376
 377     function cropLogo()
 378     {
 379         $filedata = $_SESSION['FILEDATA'];
 380
 381         if (!$filedata) {
 382             $this->serverError(_('Lost our file data.'));
 383             return;
 384         }
 385
 386         // If image is not being cropped assume pos & dimentions of original
 387         $dest_x = $this->arg('avatar_crop_x') ? $this->arg('avatar_crop_x'):0;
 388         $dest_y = $this->arg('avatar_crop_y') ? $this->arg('avatar_crop_y'):0;
 389         $dest_w = $this->arg('avatar_crop_w') ? $this->arg('avatar_crop_w'):$filedata['width'];
 390         $dest_h = $this->arg('avatar_crop_h') ? $this->arg('avatar_crop_h'):$filedata['height'];
 391         $size = min($dest_w, $dest_h);
 392         $size = ($size > MAX_ORIGINAL) ? MAX_ORIGINAL:$size;
 393
 394         $imagefile = new ImageFile($this->group->id, $filedata['filepath']);
 395         $filename = $imagefile->resize($size, $dest_x, $dest_y, $dest_w, $dest_h);
 396
 397         if ($this->group->setOriginal($filename)) {
 398             @unlink($filedata['filepath']);
 399             unset($_SESSION['FILEDATA']);
 400             $this->mode = 'upload';
 401             $this->showForm(_('Logo updated.'), true);
 402         } else {
 403             $this->showForm(_('Failed updating logo.'));
 404         }
 405     }
 406
 407     function showPageNotice()
 408     {
 409         if ($this->msg) {
 410             $this->element('div', ($this->success) ? 'success' : 'error',
 411                            $this->msg);
 412         } else {
 413             $inst   = $this->getInstructions();
 414             $output = common_markup_to_html($inst);
 415
 416             $this->elementStart('div', 'instructions');
 417             $this->raw($output);
 418             $this->elementEnd('div');
 419         }
 420     }
 421
 422     /**
 423      * Add the jCrop stylesheet
 424      *
 425      * @return void
 426      */
 427
 428     function showStylesheets()
 429     {
 430         parent::showStylesheets();
 431         $this->cssLink('css/jquery.Jcrop.css','base','screen, projection, tv');
 432     }
 433
 434     /**
 435      * Add the jCrop scripts
 436      *
 437      * @return void
 438      */
 439
 440     function showScripts()
 441     {
 442         parent::showScripts();
 443
 444         if ($this->mode == 'crop') {
 445             $this->script('js/jcrop/jquery.Jcrop.pack.js');
 446             $this->script('js/jcrop/jquery.Jcrop.go.js');
 447         }
 448     }
 449
 450     function showLocalNav()
 451     {
 452         $nav = new GroupNav($this, $this->group);
 453         $nav->show();
 454     }
 455 }