galette/lib/Galette/Core/Picture.php

   1 <?php
   2
   3 /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
   4
   5 /**
   6  * Picture handling
   7  *
   8  * PHP version 5
   9  *
  10  * Copyright © 2006-2014 The Galette Team
  11  *
  12  * This file is part of Galette (http://galette.tuxfamily.org).
  13  *
  14  * Galette is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation, either version 3 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * Galette is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with Galette. If not, see <http://www.gnu.org/licenses/>.
  26  *
  27  * @category  Core
  28  * @package   Galette
  29  *
  30  * @author    Frédéric Jacquot <unknown@unknow.com>
  31  * @author    Johan Cwiklinski <johan@x-tnd.be>
  32  * @copyright 2006-2014 The Galette Team
  33  * @license   http://www.gnu.org/licenses/gpl-3.0.html GPL License 3.0 or (at your option) any later version
  34  * @link      http://galette.tuxfamily.org
  35  */
  36
  37 namespace Galette\Core;
  38
  39 use Throwable;
  40 use Analog\Analog;
  41 use Galette\Entity\Adherent;
  42 use Galette\Repository\Members;
  43 use Galette\IO\FileInterface;
  44 use Galette\IO\FileTrait;
  45
  46 /**
  47  * Picture handling
  48  *
  49  * @name Picture
  50  * @category  Core
  51  * @package   Galette
  52  * @author    Frédéric Jacquot <unknown@unknow.com>
  53  * @author    Johan Cwiklinski <johan@x-tnd.be>
  54  * @copyright 2006-2014 The Galette Team
  55  * @license   http://www.gnu.org/licenses/gpl-3.0.html GPL License 3.0 or (at your option) any later version
  56  * @link      http://galette.tuxfamily.org
  57  */
  58 class Picture implements FileInterface
  59 {
  60     use FileTrait;
  61
  62     //constants that will not be overrided
  63     public const SQL_ERROR = -10;
  64     public const SQL_BLOB_ERROR = -11;
  65     //constants that can be overrided
  66     //(do not use self::CONSTANT, but get_class[$this]::CONSTANT)
  67     public const TABLE = 'pictures';
  68     public const PK = Adherent::PK;
  69
  70     protected $tbl_prefix = '';
  71
  72     protected $id;
  73     protected $height;
  74     protected $width;
  75     protected $optimal_height;
  76     protected $optimal_width;
  77     protected $file_path;
  78     protected $format;
  79     protected $mime;
  80     protected $has_picture = false;
  81     protected $store_path = GALETTE_PHOTOS_PATH;
  82     protected $max_width = 200;
  83     protected $max_height = 200;
  84     private $insert_stmt;
  85
  86     /**
  87      * Default constructor.
  88      *
  89      * @param int $id_adh the id of the member
  90      */
  91     public function __construct($id_adh = '')
  92     {
  93
  94         $this->init(
  95             null,
  96             array('jpeg', 'jpg', 'png', 'gif'),
  97             array(
  98                 'jpg'    =>    'image/jpeg',
  99                 'png'    =>    'image/png',
 100                 'gif'    =>    'image/gif'
 101             )
 102         );
 103
 104         // '!==' needed, otherwise ''==0
 105         if ($id_adh !== '' && $id_adh !== null) {
 106             $this->id = $id_adh;
 107             if (!isset($this->db_id)) {
 108                 $this->db_id = $id_adh;
 109             }
 110
 111             //if file does not exists on the FileSystem, check for it in the database
 112             if (!$this->checkFileOnFS()) {
 113                 if ($this->checkFileInDB()) {
 114                     $this->has_picture = true;
 115                 }
 116             } else {
 117                 $this->has_picture = true;
 118             }
 119         }
 120
 121         // if we still have no picture, take the default one
 122         if (empty($this->file_path)) {
 123             $this->getDefaultPicture();
 124         }
 125
 126         //we should not have an empty file_path, but...
 127         if (!empty($this->file_path)) {
 128             $this->setSizes();
 129         }
 130     }
 131
 132     /**
 133      * "Magic" function called on unserialize
 134      *
 135      * @return void
 136      */
 137     public function __wakeup()
 138     {
 139         //if file has been deleted since we store our object in the session,
 140         //we try to retrieve it
 141         if (!$this->checkFileOnFS()) {
 142             //if file does not exists on the FileSystem,
 143             //check for it in the database
 144             //$this->checkFileInDB();
 145         } else {
 146             $this->has_picture = false;
 147         }
 148
 149         // if we still have no picture, take the default one
 150         if (empty($this->file_path)) {
 151             $this->getDefaultPicture();
 152         }
 153
 154         //we should not have an empty file_path, but...
 155         if (!empty($this->file_path)) {
 156             $this->setSizes();
 157         }
 158     }
 159
 160     /**
 161      * Check if current file is present on the File System
 162      *
 163      * @return boolean true if file is present on FS, false otherwise
 164      */
 165     private function checkFileOnFS()
 166     {
 167         $file_wo_ext = $this->store_path . $this->id;
 168         if (file_exists($file_wo_ext . '.jpg')) {
 169             $this->file_path = realpath($file_wo_ext . '.jpg');
 170             $this->format = 'jpg';
 171             $this->mime = 'image/jpeg';
 172             return true;
 173         } elseif (file_exists($file_wo_ext . '.png')) {
 174             $this->file_path = realpath($file_wo_ext . '.png');
 175             $this->format = 'png';
 176             $this->mime = 'image/png';
 177             return true;
 178         } elseif (file_exists($file_wo_ext . '.gif')) {
 179             $this->file_path = realpath($file_wo_ext . '.gif');
 180             $this->format = 'gif';
 181             $this->mime = 'image/gif';
 182             return true;
 183         }
 184         return false;
 185     }
 186
 187     /**
 188      * Check if current file is present in the database,
 189      *   and copy it to the File System
 190      *
 191      * @return boolean true if file is present in the DB, false otherwise
 192      */
 193     private function checkFileInDB()
 194     {
 195         global $zdb;
 196
 197         try {
 198             $select = $this->getCheckFileQuery();
 199             $results = $zdb->execute($select);
 200             $pic = $results->current();
 201
 202             if ($pic) {
 203                 // we must regenerate the picture file
 204                 $file_wo_ext = $this->store_path . $this->id;
 205                 file_put_contents(
 206                     $file_wo_ext . '.' . $pic->format,
 207                     $pic->picture
 208                 );
 209
 210                 $this->format = $pic->format;
 211                 switch ($this->format) {
 212                     case 'jpg':
 213                         $this->mime = 'image/jpeg';
 214                         break;
 215                     case 'png':
 216                         $this->mime = 'image/png';
 217                         break;
 218                     case 'gif':
 219                         $this->mime = 'image/gif';
 220                         break;
 221                 }
 222                 $this->file_path = realpath($file_wo_ext . '.' . $this->format);
 223                 return true;
 224             }
 225         } catch (Throwable $e) {
 226             return false;
 227         }
 228     }
 229
 230     /**
 231      * Returns the relevant query to check if picture exists in database.
 232      *
 233      * @return string SELECT query
 234      */
 235     protected function getCheckFileQuery()
 236     {
 237         global $zdb;
 238         $class = get_class($this);
 239
 240         $select = $zdb->select($this->tbl_prefix . $class::TABLE);
 241         $select->columns(
 242             array(
 243                 'picture',
 244                 'format'
 245             )
 246         );
 247         $select->where(array($class::PK => $this->db_id));
 248         return $select;
 249     }
 250
 251     /**
 252      * Gets the default picture to show, anyways
 253      *
 254      * @return void
 255      */
 256     protected function getDefaultPicture()
 257     {
 258         $this->file_path = realpath(_CURRENT_THEME_PATH . 'images/default.png');
 259         $this->format = 'png';
 260         $this->mime = 'image/png';
 261         $this->has_picture = false;
 262     }
 263
 264     /**
 265      * Set picture sizes
 266      *
 267      * @return void
 268      */
 269     private function setSizes()
 270     {
 271         list($width, $height) = getimagesize($this->file_path);
 272         $this->height = $height;
 273         $this->width = $width;
 274         $this->optimal_height = $height;
 275         $this->optimal_width = $width;
 276
 277         if ($this->height > $this->width) {
 278             if ($this->height > $this->max_height) {
 279                 $ratio = $this->max_height / $this->height;
 280                 $this->optimal_height = $this->max_height;
 281                 $this->optimal_width = $this->width * $ratio;
 282             }
 283         } else {
 284             if ($this->width > $this->max_width) {
 285                 $ratio = $this->max_width / $this->width;
 286                 $this->optimal_width = $this->max_width;
 287                 $this->optimal_height = $this->height * $ratio;
 288             }
 289         }
 290     }
 291
 292     /**
 293      * Get image file contents
 294      *
 295      * @return mixed
 296      */
 297     public function getContents()
 298     {
 299         readfile($this->file_path);
 300     }
 301
 302     /**
 303      * Set header and displays the picture.
 304      *
 305      * @param Response $response Reponse
 306      *
 307      * @return object the binary file
 308      */
 309     public function display(\Slim\Http\Response $response)
 310     {
 311         $response = $response->withHeader('Content-Type', $this->mime)
 312             ->withHeader('Content-Transfer-Encoding', 'binary')
 313             ->withHeader('Expires', '0')
 314             ->withHeader('Cache-Control', 'must-revalidate')
 315             ->withHeader('Pragma', 'public');
 316
 317         $stream = fopen('php://memory', 'r+');
 318         fwrite($stream, file_get_contents($this->file_path));
 319         rewind($stream);
 320
 321         return $response->withBody(new \Slim\Http\Stream($stream));
 322     }
 323
 324     /**
 325      * Deletes a picture, from both database and filesystem
 326      *
 327      * @param boolean $transaction Whether to use a transaction here or not
 328      *
 329      * @return boolean true if image was successfully deleted, false otherwise
 330      */
 331     public function delete($transaction = true)
 332     {
 333         global $zdb;
 334         $class = get_class($this);
 335
 336         try {
 337             if ($transaction === true) {
 338                 $zdb->connection->beginTransaction();
 339             }
 340
 341             $delete = $zdb->delete($this->tbl_prefix . $class::TABLE);
 342             $delete->where(
 343                 $class::PK . ' = ' . $this->db_id
 344             );
 345             $del = $zdb->execute($delete);
 346
 347             if (!$del->count() > 0) {
 348                 Analog::log(
 349                     'Unable to remove picture database entry for ' . $this->db_id,
 350                     Analog::ERROR
 351                 );
 352                 //it may be possible image is missing in the database.
 353                 //let's try to remove file anyway.
 354             }
 355
 356             $file_wo_ext = $this->store_path . $this->id;
 357
 358             // take back default picture
 359             $this->getDefaultPicture();
 360             // fix sizes
 361             $this->setSizes();
 362
 363             $success = false;
 364             $_file = null;
 365             if (file_exists($file_wo_ext . '.jpg')) {
 366                 //return unlink($file_wo_ext . '.jpg');
 367                 $_file = $file_wo_ext . '.jpg';
 368                 $success = unlink($_file);
 369             } elseif (file_exists($file_wo_ext . '.png')) {
 370                 //return unlink($file_wo_ext . '.png');
 371                 $_file = $file_wo_ext . '.png';
 372                 $success = unlink($_file);
 373             } elseif (file_exists($file_wo_ext . '.gif')) {
 374                 //return unlink($file_wo_ext . '.gif');
 375                 $_file = $file_wo_ext . '.gif';
 376                 $success = unlink($_file);
 377             }
 378
 379             if ($_file !== null && $success !== true) {
 380                 //unable to remove file that exists!
 381                 if ($transaction === true) {
 382                     $zdb->connection->rollBack();
 383                 }
 384                 Analog::log(
 385                     'The file ' . $_file .
 386                     ' was found on the disk but cannot be removed.',
 387                     Analog::ERROR
 388                 );
 389                 return false;
 390             } else {
 391                 if ($transaction === true) {
 392                     $zdb->connection->commit();
 393                 }
 394                 $this->has_picture = false;
 395                 return true;
 396             }
 397         } catch (Throwable $e) {
 398             if ($transaction === true) {
 399                 $zdb->connection->rollBack();
 400             }
 401             Analog::log(
 402                 'An error occurred attempting to delete picture ' . $this->db_id .
 403                 'from database | ' . $e->getMessage(),
 404                 Analog::ERROR
 405             );
 406             return false;
 407         }
 408     }
 409
 410     /**
 411      * Stores an image on the disk and in the database
 412      *
 413      * @param object  $file the uploaded file
 414      * @param boolean $ajax If the image cames from an ajax call (dnd)
 415      *
 416      * @return true|false result of the storage process
 417      */
 418     public function store($file, $ajax = false)
 419     {
 420         /** TODO: fix max size (by preferences ?) */
 421         global $zdb;
 422
 423         $class = get_class($this);
 424
 425         $name = $file['name'];
 426         $tmpfile = $file['tmp_name'];
 427
 428         //First, does the file have a valid name?
 429         $reg = "/^([^" . implode('', $this->bad_chars) . "]+)\.(" .
 430             implode('|', $this->allowed_extensions) . ")$/i";
 431         if (preg_match($reg, $name, $matches)) {
 432             Analog::log(
 433                 '[' . $class . '] Filename and extension are OK, proceed.',
 434                 Analog::DEBUG
 435             );
 436             $extension = strtolower($matches[2]);
 437             if ($extension == 'jpeg') {
 438                 //jpeg is an allowed extension,
 439                 //but we change it to jpg to reduce further tests :)
 440                 $extension = 'jpg';
 441             }
 442         } else {
 443             $erreg = "/^([^" . implode('', $this->bad_chars) . "]+)\.(.*)/i";
 444             $m = preg_match($erreg, $name, $errmatches);
 445
 446             $err_msg = '[' . $class . '] ';
 447             if ($m == 1) {
 448                 //ok, we got a good filename and an extension. Extension is bad :)
 449                 $err_msg .= 'Invalid extension for file ' . $name . '.';
 450                 $ret = self::INVALID_EXTENSION;
 451             } else {
 452                 $err_msg = 'Invalid filename `' . $name . '` (Tip: ';
 453                 $err_msg .= preg_replace(
 454                     '|%s|',
 455                     htmlentities($this->getBadChars()),
 456                     "file name should not contain any of: %s). "
 457                 );
 458                 $ret = self::INVALID_FILENAME;
 459             }
 460
 461             Analog::log(
 462                 $err_msg,
 463                 Analog::ERROR
 464             );
 465             return $ret;
 466         }
 467
 468         //Second, let's check file size
 469         if ($file['size'] > ($this->maxlenght * 1024)) {
 470             Analog::log(
 471                 '[' . $class . '] File is too big (' . ($file['size'] * 1024) .
 472                 'Ko for maximum authorized ' . ($this->maxlenght * 1024) .
 473                 'Ko',
 474                 Analog::ERROR
 475             );
 476             return self::FILE_TOO_BIG;
 477         } else {
 478             Analog::log('[' . $class . '] Filesize is OK, proceed', Analog::DEBUG);
 479         }
 480
 481         $current = getimagesize($tmpfile);
 482
 483         if (!in_array($current['mime'], $this->allowed_mimes)) {
 484             Analog::log(
 485                 '[' . $class . '] Mimetype `' . $current['mime'] . '` not allowed',
 486                 Analog::ERROR
 487             );
 488             return self::MIME_NOT_ALLOWED;
 489         } else {
 490             Analog::log(
 491                 '[' . $class . '] Mimetype is allowed, proceed',
 492                 Analog::DEBUG
 493             );
 494         }
 495
 496         $this->delete();
 497
 498         $new_file = $this->store_path .
 499             $this->id . '.' . $extension;
 500         if ($ajax === true) {
 501             rename($tmpfile, $new_file);
 502         } else {
 503             move_uploaded_file($tmpfile, $new_file);
 504         }
 505
 506         // current[0] gives width ; current[1] gives height
 507         if ($current[0] > $this->max_width || $current[1] > $this->max_height) {
 508             /** FIXME: what if image cannot be resized?
 509                 Should'nt we want to stop the process here? */
 510             $this->resizeImage($new_file, $extension);
 511         }
 512
 513         return $this->storeInDb($zdb, $this->db_id, $new_file, $extension);
 514     }
 515
 516     /**
 517      * Stores an image in the database
 518      *
 519      * @param Db     $zdb  Database instance
 520      * @param int    $id   Member ID
 521      * @param string $file File path on disk
 522      * @param string $ext  File extension
 523      *
 524      * @return boolean
 525      */
 526     private function storeInDb(Db $zdb, $id, $file, $ext)
 527     {
 528         $f = fopen($file, 'r');
 529         $picture = '';
 530         while ($r = fread($f, 8192)) {
 531             $picture .= $r;
 532         }
 533         fclose($f);
 534
 535         $class = get_class($this);
 536
 537         try {
 538             $zdb->connection->beginTransaction();
 539             $stmt = $this->insert_stmt;
 540             if ($stmt == null) {
 541                 $insert = $zdb->insert($this->tbl_prefix . $class::TABLE);
 542                 $insert->values(
 543                     array(
 544                         $class::PK  => ':' . $class::PK,
 545                         'picture'   => ':picture',
 546                         'format'    => ':format'
 547                     )
 548                 );
 549                 $stmt = $zdb->sql->prepareStatementForSqlObject($insert);
 550                 $container = $stmt->getParameterContainer();
 551                 $container->offsetSet(
 552                     'picture', //'picture',
 553                     ':picture',
 554                     $container::TYPE_LOB
 555                 );
 556                 $stmt->setParameterContainer($container);
 557                 $this->insert_stmt = $stmt;
 558             }
 559
 560             $stmt->execute(
 561                 array(
 562                     $class::PK  => $id,
 563                     'picture'   => $picture,
 564                     'format'    => $ext
 565                 )
 566             );
 567             $zdb->connection->commit();
 568             $this->has_picture = true;
 569         } catch (Throwable $e) {
 570             $zdb->connection->rollBack();
 571             Analog::log(
 572                 'An error occurred storing picture in database: ' .
 573                 $e->getMessage(),
 574                 Analog::ERROR
 575             );
 576             return self::SQL_ERROR;
 577         }
 578
 579         return true;
 580     }
 581
 582     /**
 583      * Check for missing images in database
 584      *
 585      * @param Db $zdb Database instance
 586      *
 587      * @return void
 588      */
 589     public function missingInDb(Db $zdb)
 590     {
 591         $existing_disk = array();
 592
 593         //retrieve files on disk
 594         if ($handle = opendir($this->store_path)) {
 595             while (false !== ($entry = readdir($handle))) {
 596                 $reg = "/^(\d+)\.(" .
 597                     implode('|', $this->allowed_extensions) . ")$/i";
 598                 if (preg_match($reg, $entry, $matches)) {
 599                     $id = $matches[1];
 600                     $extension = strtolower($matches[2]);
 601                     if ($extension == 'jpeg') {
 602                         //jpeg is an allowed extension,
 603                         //but we change it to jpg to reduce further tests :)
 604                         $extension = 'jpg';
 605                     }
 606                     $existing_disk[$id] = array(
 607                         'name'  => $entry,
 608                         'id'    => $id,
 609                         'ext'   => $extension
 610                     );
 611                 }
 612             }
 613             closedir($handle);
 614
 615             if (count($existing_disk) === 0) {
 616                 //no image on disk, nothing to do :)
 617                 return;
 618             }
 619
 620             //retrieve files in database
 621             $class = get_class($this);
 622             $select = $zdb->select($this->tbl_prefix . $class::TABLE);
 623             $select
 624                 ->columns(array($class::PK))
 625                 ->where->in($class::PK, array_keys($existing_disk));
 626
 627             $results = $zdb->execute($select);
 628
 629             $existing_db = array();
 630             foreach ($results as $result) {
 631                 $existing_db[] = (int)$result[self::PK];
 632             }
 633
 634             $existing_diff = array_diff(array_keys($existing_disk), $existing_db);
 635
 636             //retrieve valid members ids
 637             $members = new Members();
 638             $valids = $members->getArrayList(
 639                 $existing_diff,
 640                 null,
 641                 false,
 642                 false,
 643                 array(self::PK)
 644             );
 645
 646             foreach ($valids as $valid) {
 647                 $file = $existing_disk[$valid->id_adh];
 648                 $this->storeInDb(
 649                     $zdb,
 650                     $file['id'],
 651                     $this->store_path . $file['id'] . '.' . $file['ext'],
 652                     $file['ext']
 653                 );
 654             }
 655         } else {
 656             Analog::log(
 657                 'Something went wrong opening images directory ' .
 658                 $this->store_path,
 659                 Analog::ERROR
 660             );
 661         }
 662     }
 663
 664     /**
 665      * Resize the image if it exceed max allowed sizes
 666      *
 667      * @param string $source the source image
 668      * @param string $ext    file's extension
 669      * @param string $dest   the destination image.
 670      *                       If null, we'll use the source image. Defaults to null
 671      *
 672      * @return void
 673      */
 674     private function resizeImage($source, $ext, $dest = null)
 675     {
 676         $class = get_class($this);
 677
 678         if (function_exists("gd_info")) {
 679             $gdinfo = gd_info();
 680             $h = $this->max_height;
 681             $w = $this->max_width;
 682             if ($dest == null) {
 683                 $dest = $source;
 684             }
 685
 686             switch (strtolower($ext)) {
 687                 case 'jpg':
 688                     if (!$gdinfo['JPEG Support']) {
 689                         Analog::log(
 690                             '[' . $class . '] GD has no JPEG Support - ' .
 691                             'pictures could not be resized!',
 692                             Analog::ERROR
 693                         );
 694                         return false;
 695                     }
 696                     break;
 697                 case 'png':
 698                     if (!$gdinfo['PNG Support']) {
 699                         Analog::log(
 700                             '[' . $class . '] GD has no PNG Support - ' .
 701                             'pictures could not be resized!',
 702                             Analog::ERROR
 703                         );
 704                         return false;
 705                     }
 706                     break;
 707                 case 'gif':
 708                     if (!$gdinfo['GIF Create Support']) {
 709                         Analog::log(
 710                             '[' . $class . '] GD has no GIF Support - ' .
 711                             'pictures could not be resized!',
 712                             Analog::ERROR
 713                         );
 714                         return false;
 715                     }
 716                     break;
 717                 default:
 718                     return false;
 719             }
 720
 721             list($cur_width, $cur_height, $cur_type, $curattr)
 722                 = getimagesize($source);
 723
 724             $ratio = $cur_width / $cur_height;
 725
 726             // calculate image size according to ratio
 727             if ($cur_width > $cur_height) {
 728                 $h = $w / $ratio;
 729             } else {
 730                 $w = $h * $ratio;
 731             }
 732
 733             $thumb = imagecreatetruecolor($w, $h);
 734             switch ($ext) {
 735                 case 'jpg':
 736                     $image = imagecreatefromjpeg($source);
 737                     imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
 738                     imagejpeg($thumb, $dest);
 739                     break;
 740                 case 'png':
 741                     $image = imagecreatefrompng($source);
 742                     // Turn off alpha blending and set alpha flag. That prevent alpha
 743                     // transparency to be saved as an arbitrary color (black in my tests)
 744                     imagealphablending($thumb, false);
 745                     imagealphablending($image, false);
 746                     imagesavealpha($thumb, true);
 747                     imagesavealpha($image, true);
 748                     imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
 749                     imagepng($thumb, $dest);
 750                     break;
 751                 case 'gif':
 752                     $image = imagecreatefromgif($source);
 753                     imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
 754                     imagegif($thumb, $dest);
 755                     break;
 756             }
 757         } else {
 758             Analog::log(
 759                 '[' . $class . '] GD is not present - ' .
 760                 'pictures could not be resized!',
 761                 Analog::ERROR
 762             );
 763         }
 764     }
 765
 766     /**
 767      * Returns current file optimal height (resized)
 768      *
 769      * @return int optimal height
 770      */
 771     public function getOptimalHeight()
 772     {
 773         return (int)round($this->optimal_height, 1);
 774     }
 775
 776     /**
 777      * Returns current file height
 778      *
 779      * @return int current height
 780      */
 781     public function getHeight()
 782     {
 783         return $this->height;
 784     }
 785
 786     /**
 787      * Returns current file optimal width (resized)
 788      *
 789      * @return int optimal width
 790      */
 791     public function getOptimalWidth()
 792     {
 793         return (int)round($this->optimal_width, 1);
 794     }
 795
 796     /**
 797      * Returns current file width
 798      *
 799      * @return int current width
 800      */
 801     public function getWidth()
 802     {
 803         return $this->width;
 804     }
 805
 806     /**
 807      * Returns current file format
 808      *
 809      * @return string
 810      */
 811     public function getFormat()
 812     {
 813         return $this->format;
 814     }
 815
 816     /**
 817      * Have we got a picture ?
 818      *
 819      * @return bool True if a picture matches adherent's id, false otherwise
 820      */
 821     public function hasPicture()
 822     {
 823         return $this->has_picture;
 824     }
 825
 826     /**
 827      * Returns current file full path
 828      *
 829      * @return string full file path
 830      */
 831     public function getPath()
 832     {
 833         return $this->file_path;
 834     }
 835
 836     /**
 837      * Returns current mime type
 838      *
 839      * @return string
 840      */
 841     public function getMime()
 842     {
 843         return $this->mime;
 844     }
 845
 846     /**
 847      * Return textual error message
 848      *
 849      * @param int $code The error code
 850      *
 851      * @return string Localized message
 852      */
 853     public function getErrorMessage($code)
 854     {
 855         $error = null;
 856         switch ($code) {
 857             case self::SQL_ERROR:
 858             case self::SQL_BLOB_ERROR:
 859                 $error = _T("An SQL error has occurred.");
 860                 break;
 861         }
 862
 863         if ($error === null) {
 864             $error = $this->getErrorMessageFromCode($code);
 865         }
 866
 867         return $error;
 868     }
 869 }